Name: adoptive immunotherapy of inkt cells in glucose-6-phosphate isomerase (g6pi)-induced ra mice
Uploaded: 2020-01-31T12:30:00
Description: Watch this Scientific Journal Video about Adoptive Immunotherapy of iNKT Cells in Glucose-6-Phosphate Isomerase G6PI-Induced RA Mice at JoVE.com

Our study was supported by the National Natural Science Foundation of China (NSFC) (81771755), Colleges and university&#39;s science and technology key research project of Hebei province (ZD2017009) and the Animal Lab of Medical Experiment Center, Hebei University. We are grateful for their support.

All experimental mice (150 in total) were healthy male DBA/1 mice, 6&#8211;8 weeks old (20.0 &#177; 1.5 g), reared in a specific pathogen-free (SPF) environment. There is no special treatment before modeling. The experiment was divided into a healthy control group (15 mice), a model control group (15 mice), and a cell therapy group (55 mice). This study was approved by the Animal Welfare and Ethical Committee of Hebei University.
1. Constructing the Disease Model
<ol>
	<li>Duplicating the RA...

<ol>
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D., Ulloa, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=From+neuroimunomodulation+to+bioelectronic+treatment+of+rheumatoid+arthritis.">From neuroimunomodulation to bioelectronic treatment of rheumatoid arthritis.</a> Bioelectronics in Medicine. 1 (2), 151-165 (2018).</li><li>Brennan, P. J., Brigl, M., Brenner, M. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Invariant+natural+killer+T+cells:+an+innate+activation+scheme+linked+to+diverse+effector+functions.">Invariant natural killer T cells: an innate activation scheme linked to diverse effector functions.</a> Nature Reviews Immunology. 13 (2), 101-117 (2013).</li><li>Bianca, B. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Unraveling+Natural+Killer+T-Cells+Development.">Unraveling Natural Killer T-Cells Development.</a> Frontiers in Immunology. 8, 1950 (2018).</li><li>Mitsuo, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Decreased+CD161+CD8++T+cells+in+the+peripheral+blood+of+patients+suffering+from+rheumatic+diseases.">Decreased CD161+CD8+ T cells in the peripheral blood of patients suffering from rheumatic diseases.</a> Rheumatology. 45 (12), 1477-1484 (2006).</li><li>Miellot, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Activation+of+invariant+NK+T+cells+protects+against+experimental+rheumatoid+arthritis+by+an+IL-10-dependent+pathway.">Activation of invariant NK T cells protects against experimental rheumatoid arthritis by an IL-10-dependent pathway.</a> European Journal of Immunology. 35 (12), 3704-3713 (2005).</li><li>Miellot-Gafsou, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Early+activation+of+invariant+natural+killer+T+cells+in+a+rheumatoid+arthritis+model+and+application+to+disease+treatment.">Early activation of invariant natural killer T cells in a rheumatoid arthritis model and application to disease treatment.</a> Immunology. 130 (2), 296-306 (2010).</li><li>Tudhope, S. J., Delwig, A. V., Falconer, J., Pratt, A., Ng, W. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Profound+invariant+natural+killer+t-cell+deficiency+in+inflammatory+arthritis.">Profound invariant natural killer t-cell deficiency in inflammatory arthritis.</a> Annals of the Rheumatic Diseases. 69 (10), 1873-1879 (2010).</li><li>Ming, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effects+on+immunoregulation+of+iNKT+cells+in+RA+by+novel+synthetic+immunostimulator+CH1b.">Effects on immunoregulation of iNKT cells in RA by novel synthetic immunostimulator CH1b.</a> Chinese Journal of Immunology. 32 (02), 218-222 (2016).</li><li>Ming, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Study+of+the+correlation+between+the+percentage+of+iNKT+cells+and+the+ratio+of+IFN-&#947;/IL-4+in+patients+with+rheumatoid+arthritis.">Study of the correlation between the percentage of iNKT cells and the ratio of IFN-&#947;/IL-4 in patients with rheumatoid arthritis.</a> Chinese Journal of Microbiology Immunology. 35 (3), 213-218 (2015).</li><li>Sharif, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Activation+of+natural+killer+T+cells+by+&#945;-galactosylceramide+treatment+prevents+the+onset+and+recurrence+of+autoimmune+Type+1+diabetes.">Activation of natural killer T cells by &#945;-galactosylceramide treatment prevents the onset and recurrence of autoimmune Type 1 diabetes.</a> Nature Medicine. 7, 1057-1062 (2010).</li><li>Gapin, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Development+of+invariant+natural+killer+T+cells.">Development of invariant natural killer T cells.</a> Current Opinion in Immunology. 39, 68-74 (2016).</li><li>Kwon, D. I., Lee, Y. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Lineage+Differentiation+Program+of+Invariant+Natural+Killer+T+Cells.">Lineage Differentiation Program of Invariant Natural Killer T Cells.</a> Immune Network. 17 (6), (2017).</li><li>Thapa, P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+differentiation+of+ROR-&#947;t+expressing+iNKT17+cells+is+orchestrated+by+Runx1.">The differentiation of ROR-&#947;t expressing iNKT17 cells is orchestrated by Runx1.</a> Scientific Reports. 7 (1), 7018 (2017).</li><li>Schurgers, E., Billiau, A., Matthys, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Collagen-induced+arthritis+as+an+animal+model+for+rheumatoid+arthritis:+focuson+interferon-&#947;.">Collagen-induced arthritis as an animal model for rheumatoid arthritis: focuson interferon-&#947;.</a> Interferon Cytokine Research. 31 (12), 917-926 (2011).</li><li>Van Haalen, H. G. M., Severens, J. L., Tran-Duy, A., Boonen, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=How+cost-effectiveness+A+systematic+review+and+stepwise+approach+for+selecting+a+transferable+health+economic+evaluation+rheumatoid+arthritis.">How cost-effectiveness A systematic review and stepwise approach for selecting a transferable health economic evaluation rheumatoid arthritis.</a> Pharmacoeconomics. 32 (5), 429-442 (2014).</li><li>Schubert, D., Maier, B., Morawietz, L., Krenn, V., Kamradt, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Immunization+with+glucose-6-phosphate+isomerase+induces+T+cell-dependent+peripheral+polyarthritis+in+genetically+unaltered+mice.">Immunization with glucose-6-phosphate isomerase induces T cell-dependent peripheral polyarthritis in genetically unaltered mice.</a> Journal of Immunology. 172, 4503-4509 (2004).</li><li>Bockermann, R., Schubert, D., Kamradt, T., Holmdahl, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Induction+of+a+B-cell-dependent+chronic+arthritis+with+glucose-6-phosphate+isomerase.">Induction of a B-cell-dependent chronic arthritis with glucose-6-phosphate isomerase.</a> Arthritis Research, Therapy. 7, 131613-131624 (2005).</li><li>Kamradt, T., Schubert, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+role+and+clinical+implications+of+G6PI+in+experimental+models+of+rheumatoid+arthritis.">The role and clinical implications of G6PI in experimental models of rheumatoid arthritis.</a> Arthritis Research, Therapy. 7, 20-28 (2005).</li><li>Horikoshi, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Activation+of+Invariant+NKT+Cells+with+Glycolipid+Ligand+&#945;-Galactosylceramide+Ameliorates+Glucose-6-Phosphate+Isomerase+Peptide-Induced+Arthritis.">Activation of Invariant NKT Cells with Glycolipid Ligand &#945;-Galactosylceramide Ameliorates Glucose-6-Phosphate Isomerase Peptide-Induced Arthritis.</a> PlosOne. 7 (12), 51215 (2012).</li><li>Zhang, X. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Immunization+with+mixed+peptides+derived+from+glucose-6-phosphate+isomerase+induces+rheumatoid+arthritis+in+DBA+/1+mice.">Immunization with mixed peptides derived from glucose-6-phosphate isomerase induces rheumatoid arthritis in DBA /1 mice.</a> Chinese Journal of Pathophysiology. 32 (3), 569-576 (2016).</li><li>Motohashi, S., Nakayama, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Invariant+natural+killer+T+cell-based+immunotherapy+for+cancer.">Invariant natural killer T cell-based immunotherapy for cancer.</a> Immunotherapy. 1 (1), 73 (2017).</li><li>Jung, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+requirement+of+natural+killer+T-cells+in+tolerogenic+APCs-mediated+suppression+of+collagen-induced+arthritis.">The requirement of natural killer T-cells in tolerogenic APCs-mediated suppression of collagen-induced arthritis.</a> Experimental and Molecular Medicine. 42 (8), 547-554 (2010).</li><li>Luc, V. K., Lan, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Therapeutic+Potential+of+Invariant+Natural+Killer+T+Cells+in+Autoimmunity.">Therapeutic Potential of Invariant Natural Killer T Cells in Autoimmunity.</a> Frontiers in Immunology. 9, 519-526 (2018).</li><li>Chiba, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Suppression+of+collagen-induced+arthritis+by+natural+killer+T+cell+activation+with+OCH,+a+sphingosine-truncated+analog+of+&#945;-galactosylceramide.">Suppression of collagen-induced arthritis by natural killer T cell activation with OCH, a sphingosine-truncated analog of &#945;-galactosylceramide.</a> Arthritis, Rheumatism. 50 (1), 305-313 (2004).</li><li>Tudhope, S. J., Delwig, A. V., Falconer, J., Pratt, A., Ng, W. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Profound+invariant+natural+killer+t-cell+deficiency+in+inflammatory+arthritis.">Profound invariant natural killer t-cell deficiency in inflammatory arthritis.</a> Annals of the Rheumatic Diseases. 69 (10), 1873-1879 (2010).</li><li>Bruns, L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Immunization+with+an+immunodominant+self-peptide+derived+from+glucose-6-phosphate+isomerase+induces+arthritis+in+DBA/1+mice.">Immunization with an immunodominant self-peptide derived from glucose-6-phosphate isomerase induces arthritis in DBA/1 mice.</a> Arthritis Research, Therapy. 11 (4), (2009).</li><li>Parietti, V., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rituximab+treatment+overcomes+reduction+of+regulatory+iNKT+cells+in+patients+with+rheumatoid+arthritis.">Rituximab treatment overcomes reduction of regulatory iNKT cells in patients with rheumatoid arthritis.</a> Clinical Immunology. 134 (3), 331-339 (2010).</li><li>Yoshida, Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Functional+mechanism(s)+of+the+inhibition+of+disease+progression+by+combination+treatment+with+fingolimod+plus+pathogenic+antigen+in+a+glucose-6-phosphate+isomerase+peptide-induced+arthritis+mouse+model.">Functional mechanism(s) of the inhibition of disease progression by combination treatment with fingolimod plus pathogenic antigen in a glucose-6-phosphate isomerase peptide-induced arthritis mouse model.</a> Biological, Pharmaceutical Bulletin. 38 (8), 1120-1125 (2015).</li><li>Chen, D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Study+of+the+adoptive+immunotherapy+on+rheumatoid+arthritis+with+Thymus-derived+invariant+natural+killer+T+cells.">Study of the adoptive immunotherapy on rheumatoid arthritis with Thymus-derived invariant natural killer T cells.</a> International Immunopharmacology. 67, 427-440 (2019).</li></ol>

iNKT cells are special T cells that bridge innate and adaptive immunity and are mainly developed from CD4++/CD8+ thymocytes. iNKT cells have diverse immunoregulatory functions and interact with other immune cells by direct contact and secretion of different cytokines23, affecting dendritic cells (DCs), macrophages, neutrophils, B cells, T cells, and NK cell differentiation and development24. &#945;-GalCer...

Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic, progressive invasiveness with 0.5&#8211;1% incidence1,2. The underlying pathogenesis is attributed to the abnormal proliferation of autoreactive CD4+ and CD8+ T cells, manifested by an increase in the proportion of CD4+IFN-&#947;+ and CD4+IL-17A+ T cells, and the reduced number of CD4+IL-4+ and CD4+CD25+FoxP3+ T cells. Therefore, the secretion of inflammatory cytokines is increased, and an excessive inflammatory reaction destroys the native balance and tolerance function of the body&#39;s immune system. Moreover, the helper T lymphocyte (Th) 1 cells that penetrate the joint aggravate the inflammatory response and joint damage. Therefore, the inhibition of excessive inflammatory response and restoration of immune tolerance and immune balance are key to the treatment of RA3,4.
The iNKT cells have both NK cell and T cell functions and characteristics. The iNKT cells harbor a distinct, invariant T cell receptor (TCR) &#945;-chain with limited TCR &#946;-chain repertoires5 and recognize the glycolipid antigen presented by the major histocompatibility complex (MHC) class I molecule CD1d on the surface of the antigen-presenting cells. Mitsuo et al.6 detected a large number of iNKT cells and functional defects in many autoimmune diseases, including RA. Aurore et al.7 demonstrated that iNKT cells have a positive effect on maintaining autoimmune tolerance and that when the number and function of iNKT cells are restored, the disease is alleviated. In addition, Miellot-Gafsou et al.8 found that iNKT cells not only abrogated the disease but also increased the progression of the disease. These contradictory results suggest that iNKT cells are heterogeneous T cells, and the function of different subsets may be reversed. In a clinical study of RA, the frequency of iNKT cells correlated with the score of the disease activity9. The results also confirmed that the frequency of iNKT was decreased in RA patients, the number of CD4+IFN-&#947;+ T cell subsets increased, and the secretory levels of inflammatory cytokines IFN-&#947; and TNF-&#945; increased10,11. In addition, Sharif et al.12 investigated type 1 diabetes (T1D) and found that selective infusion of iNKT cells upregulated the expression of the inflammatory cytokine IL-4, maintained immune tolerance, and prevented the development of type 1 diabetes. Therefore, adoptive infusion of specific iNKT cells or targeted activation of iNKT cells increases the level of iNKT cells in RA patients, which can be a breakthrough in RA treatment.
Cellular immunotherapy is currently of great interest and has been widely used in cancer therapy. However, iNKT cells are rare, heterogeneous immunoregulatory cells (only 0.3% of the total number of PBMCs)13, which limits potential clinical applications. These cells are mainly divided into three subpopulations: 1) iNKT1 cells, which have a high expression of promyelocytic leukemia zinc-finger protein (PLZF) and T-box transcription factor (T-bet); 2) iNKT2 cells with intermediate expression of PLZF and GATA binding protein 3 (GATA3); 3) iNKT17 cells with low expression of PLZF and retinoid-related orphan nuclear receptor (ROR)-&#947;t that secrete IFN-&#947;, IL-4, and IL-1714. Activated iNKT cells secrete Th1, Th2, and Th17-like cytokines, which determine the different immunomodulatory effects of iNKT cells15. The immunomodulatory and immunotherapeutic effects of specific activation of various subpopulations of iNKT cells are different. Therefore, the selection of specific phenotypes of iNKT cells (mainly iNKT2) with anti-inflammatory functions to regulate the immune response of the body can correct the immune imbalance and immune disorders in RA.
The establishment of an ideal animal model is of great significance for the treatment and study of RA pathogenesis. Presently, the most commonly used and mature animal models include collagen-induced arthritis, adjuvant arthritis, zymosan-induced arthritis, and polysaccharide-induced arthritis16&#8211;17. However, there is no model that can fully simulate all the features of human RA. Type II collagen-induced arthritis (CIA) is a classic arthritis model. The CIA is induced by immunization of mice with type II collagen-specific monoclonal antibodies, reflecting the antibody dependence of this disease model. Benurs et al. described a model with a systemic immune response to glucose-6-phosphate isomerase (G6PI), which induces peripheral symmetric polyarthritis in susceptible mouse strains18,19. In this model, the development of arthritis depends on T cells, B cells, and innate immunity18,19,20. Horikoshi21 found that RA models resulting from immunization of DBA/1 mice with G6PI polypeptide fragments are more similar to human RA in terms of CD4+ T cells and cytokines (i.e., IL-6 and TNF-&#945;) than the CIA models. In order to increase the stimulating effect on the TCR recognition site, the mixed polypeptide fragments of G6PI (hGPI325-339 and hGPI469-483) were used to immunize DBA/1 mice to construct the RA mouse model. The success rate of this approach can high because hGPI325-339 and hGPI469-483 are immunodominant for I-A q-restricted T cell responses. Therefore, this model can simulate the overproliferation of CD4+ T cells and iNKT cell defects in RA patients22. The basic research of RA immunopathology laid the foundation for our further in-depth investigation.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>Alexa Fluor 647 Mouse Anti-PLZF</td>
			<td>BD</td>
			<td>563490</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Anti-PE MicroBeads</td>
			<td>Miltenyi</td>
			<td>130-048-801</td>
			<td>Germany</td>
		</tr>
		<tr>
			<td>Columns</td>
			<td>Miltenyi</td>
			<td>MS</td>
			<td>Germany</td>
		</tr>
		<tr>
			<td>Cryogenic Centrifuge</td>
			<td>Beckman</td>
			<td>Allegra&#174; X-15R</td>
			<td>America</td>
		</tr>
		<tr>
			<td>DiR</td>
			<td>Thermo Fisher Scientific</td>
			<td>D12731</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Embedding Center</td>
			<td>Tianjin Aviation Electromechanical Co., Ltd.</td>
			<td>BMJ-1</td>
			<td>China</td>
		</tr>
		<tr>
			<td>FITC Hamster Anti-Mouse TCR &#946; Chain</td>
			<td>BD</td>
			<td>553170</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Flow cytometer</td>
			<td>BD</td>
			<td>Accuri C6</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Freund&#39;s complete adjuvant</td>
			<td>Sigma</td>
			<td>F5881</td>
			<td>America</td>
		</tr>
		<tr>
			<td>hGPI325-339 (IWYINCFGCETHAML)</td>
			<td>Karebay Biochem</td>
			<td>18062202</td>
			<td>China</td>
		</tr>
		<tr>
			<td>hGPI469-483 (EGNRPTNSIVFTKLT)</td>
			<td>Karebay Biochem</td>
			<td>18062203</td>
			<td>China</td>
		</tr>
		<tr>
			<td>In Vivo Imaging System</td>
			<td>PerkinElmer</td>
			<td>caliper IVIS lumina II</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Ionomycin Calcium</td>
			<td>Cayman</td>
			<td>10004974</td>
			<td>America</td>
		</tr>
		<tr>
			<td>KRN7000</td>
			<td>AdipoGen</td>
			<td>AG-CN2-0013</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Mouse CD1d Tetramer-PE</td>
			<td>MBL</td>
			<td>TS-MCD-1</td>
			<td>Japan</td>
		</tr>
		<tr>
			<td>Mouse percoll</td>
			<td>Solarbio</td>
			<td>P8620</td>
			<td>China</td>
		</tr>
		<tr>
			<td>Optical Microscope</td>
			<td>Olympus</td>
			<td>Olympus-II</td>
			<td>Japan</td>
		</tr>
		<tr>
			<td>PerCP-CyTM5.5 Mouse anti-ROR-&#978;t</td>
			<td>BD</td>
			<td>562683</td>
			<td>America</td>
		</tr>
		<tr>
			<td>PerCP-CyTM5.5 Mouse anti-T-bet</td>
			<td>BD</td>
			<td>561316</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Pertussis toxin</td>
			<td>Sigma</td>
			<td>P7208</td>
			<td>America</td>
		</tr>
		<tr>
			<td>phorbol esters</td>
			<td>Cayman</td>
			<td>10008014</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Red Blood Cell Lysis Buffer</td>
			<td>BD</td>
			<td>555899</td>
			<td>America</td>
		</tr>
		<tr>
			<td>RPMI-1640</td>
			<td>Biological Industries</td>
			<td>01-100-1ACS</td>
			<td>Israel</td>
		</tr>
		<tr>
			<td>Th1/Th2/Th17 cytokines kit</td>
			<td>BD</td>
			<td>560485</td>
			<td>America</td>
		</tr>
		<tr>
			<td>Ultramicrotome</td>
			<td>Leica</td>
			<td>Leica EM UC6</td>
			<td>Germany</td>
		</tr>
	</tbody>
</table>

adoptive immunotherapy of inkt cells in glucose-6-phosphate isomerase (g6pi)-induced ra mice

Rheumatoid arthritis (RA) is a complex chronic inflammatory autoimmune disease. The pathogenesis of the disease is related to invariant natural killer T (iNKT) cells. Patients with active RA present fewer iNKT cells, defective cell function, and excessive polarization of Th1. In this study, an RA animal model was established using a mixture of hGPI325-339 and hGPI469-483 peptides. The iNKT cells were obtained by in vivo induction and in vitro purification, followed by infusion into RA mice for adoptive immunotherapy. The in vivo imaging system (IVIS) tracking revealed that iNKT cells were mainly distributed in the spleen and liver. On day 12 after cell therapy, the disease progression slowed down significantly, the clinical symptoms were alleviated, the abundance of iNKT cells in the thymus increased, the proportion of iNKT1 in the thymus decreased, and the levels of TNF-&#945;, IFN-&#947;, and IL-6 in the serum decreased. Adoptive immunotherapy of iNKT cells restored the balance of immune cells and corrected the excessive inflammation of the body.

The arthritis index score and paw thickness increased after modeling. Compared with the control group, the toes of the RA model group began to show red swelling at 6 days after modeling, with gradual aggravation. At 14 days, the red swelling in the ankle joint peaked, followed by gradual relief. The thickness of the paw changed similarly (P &#60; 0.05) (Figure 1).
The inflammatory cell infiltration increased significantly after modeling. The pathological ...

Watch this Scientific Journal Video about Adoptive Immunotherapy of iNKT Cells in Glucose-6-Phosphate Isomerase G6PI-Induced RA Mice at JoVE.com

Adoptive Immunotherapy of iNKT Cells in Glucose-6-Phosphate Isomerase G6PI-Induced RA Mice

This protocol uses G6PI mixed peptides to construct rheumatoid arthritis models that are closer to that of human rheumatoid arthritis in CD4+ T cells and cytokines. High purity invariant natural killer T cells (mainly iNKT2) with specific phenotypes and functions were obtained by in vivo induction and in vitro purification for adoptive immunotherapy.

Adoptive Immunotherapy of iNKT Cells in Glucose-6-Phosphate Isomerase (G6PI)-Induced RA Mice

Rheumatoid arthritis (RA) is a complex chronic inflammatory autoimmune disease. The pathogenesis of the disease is related to invariant natural killer T ...

Our protocol describes a method to build an RA model. Its success rate is over 93 percent and its pathogenesis is depends on T cells, B cells, and innate immunity, which allows researchers to better study the pathogenesis of RA from a global immune perspective. Then we use INKT cells with immunomodulatory effects for their treatment.INKT cells have good effect on the treatment by in vivo introduction which provide basic data support for the clinical application of INKT cells and truly explodes the clinical application value of INKT cells. The greatest advantage of this technology is that it is simple to operate and easy to copy. Demonstrating the procedure will be Chen Shengde, Gao Xiang, and Zhang Jingnan, graduate student from my laboratory.To begin, weigh 1.75 milligrams of both HGPI325 to 339 and HGPI469 to 483 fragments and dissolve them in 5.25 milliliters of 4 degrees Celsius triple distilled water. Dissolve Complete Freund's Adjuvant in a 50 degree Celsius water bath. Draw 5.25 milliliters into another 10 milliliter centrifuge tube and cool it for use.Put the mixture of HG6PI solution and Complete Freund's Adjuvant solution in an artificial emulsification unit with two glass syringes, connected. In an ice bath, push the syringe at a constant speed and frequency of ten to twenty times per minute to completely emulsify the mixture peptide solution and complete Freund's Adjuvant solution. Then, keep the emulsion droplets in the water for ten minutes.Next, inject 150 microliters of the emulsified HG6PIs into the mouse's tail root subcutaneously. Immediately and after 48 hours, inject 200 milligrams of pertussis toxin into the mouse intraperineally. Now, inject normal DBA1 mouse intraperineally without the gausser at the dosage of 0.1 milligrams per kilogram of body weight.Three days after modeling, after anesthetization, isolate the spleen of the mouse. Prepare a single cell suspension by cutting and grinding the spleen in a 200 mesh sieve. Wash the cell suspension with PBS.Centrifuge at 200 times g for five minutes and discard the supernatant. Re suspend the cells with one milliliter of whole blood tissue solution. Add three milliliters of mouse lymphocyte separation medium.And then centrifuge the cells for 20 minutes at 300 times g at room temperature. To purify the INKT cells, resuspend 10 to the seventh cells with 100 microliters of four degree Celsius PBS, add 10 microliter of alpha gausser loaded CD1 tetramer PE and incubate them at 4 degrees Celsius for fifteen minutes in the dark. Wash the cells twice with PBS and resuspend them in 80 microliters of PBS.Add 20 microliters of anti-PE microbeads and incubate them at four degrees Celsius for twenty minutes in the dark. Wash them twice with PBS and resuspend the cells with 500 microliters of PBS. Place the sorting column in the magnetic field of the MACS sorter and rinse with 500 microliters of PBS.Add the prepared cell suspension to the sorting column, collect the flow through, and rinse three times with PBS buffer. Remove the magnetic field and add one milliliter of PBS buffer to the sorting column. Quickly push the plunger at a constant pressure to drive the labeled cells into the collection tube.And obtain the purified INKT cells. Count with an automated cell counter. To identify the INKT cell phenotype, first, take one times ten to the sixth cells from the purified INKT cells and resuspend them in 50 microliters of PBS.Add 0.5 microliters of alpha gausser PE CD1 tetramer, or 10 microliters of FITC TCR beta in the single positive control tube. Add 0.5 microliters of alpha gausser PE CD1 tetramer, Add 10 microliters of FITC TCR beta in the sample tube. Incubate them at four degrees Celsius for thirty minutes in the dark.After that, wash the cells in PBS and then centrifuge at 200 times g for five minutes. Discard the supernatant and add one milliliter of FoxP3 fixation permeabilization working solution. And incubate the cells for 45 minutes at four degrees Celsius in the dark.Then, add one milliliter of 1x permeabilization working solution and centrifuge the cells at 500 times g at room temperature for five minutes. Discard the supernatant. Add one microliter of AlexaFluor 647 mouse anti-PLZF and one microliter of PerCP Cy5.5 mouse anti-Tbet and incubate for thirty minutes at room temperature in the dark.Next, add two microliters of permeabilization buffer working solution and centrifuge at 200 times g for five minutes for cleaning. Discard the supernatant. Resuspend the cells in 500 microliters of PBS and measure by flow cytometry.In this study, compared with the control group, the toes of the RA model group began to show red swelling after modeling with gradual aggravation. At 14 days, the red swelling in the ankle joint peaked followed by gradual relief. The pathological results show that the infiltration degree of inflammatory cells in the ankle synovial tissue of the RA model mice was different at different stages.Peak inflammation occurred on day 14 post modeling. In the RA model group, the serum levels of pro-inflammatory cytokines significantly increased 11 days and 14 days after modeling. While anti-inflammatory cytokines significantly decreased.This figure shows the rate of INKT2 in normal mice was around five percent. The rate of INK2 was about 82 percent after in vivo induction. The rate of INK2 was more than 92 percent after MACS purification.Here we show a method to emulsify the major polypeptide we see in RA.The emulsified droplets are kept in the water for 10 minutes. Results is dispersing. This protocol is a new add-on for the treatment of RA raised special NKT cells.Which can be applied towards cell immunotherapy or other autoimmune disease and tumors. This model can stimulate the overall proliferation of CD4 T cells and NKT cells deficits in RA patients, which lays the foundation for in depth study of RA immune pathways. In this protocol, pertussis toxin is injected the interperitoneally during modeling.Please wear experimental clothes and disposable gloves. And carry all the standards of operation so as to prevent stab wound an infections.

adoptive-immunotherapy-inkt-cells-glucose-6-phosphate-isomerase-g6pi

Research

JoVE Journal

Immunology and Infection

Experimental Metastasis and CTL Adoptive Transfer Immunotherapy Mouse Model

Experimental metastasis mouse model is a simple and yet physiologically relevant metastasis model. The tumor cells are injected intravenously (i.v) into mouse tail veins and colonize in the lungs, thereby, resembling the last steps of tumor cell spontaneous metastasis: survival in the circulation, extravasation and colonization in the distal organs. From a therapeutic point of view, the experimental metastasis model is the simplest and ideal model since the target of therapies is often the end point of metastasis: established metastatic tumor in the distal organ. In this model, tumor cells are injected i.v into mouse tail veins and allowed to colonize and grow in the lungs. Tumor-specific CTLs are then injected i.v into the metastases-bearing mouse. The number and size of the lung metastases can be controlled by the number of tumor cells to be injected and the time of tumor growth. Therefore, various stages of metastasis, from minimal metastasis to extensive metastasis, can be modeled. Lung metastases are analyzed by inflation with ink, thus allowing easier visual observation and quantification.

An experimental lung metastasis and CTL immunotherapy mouse model for analysis of tumor cells-T cell interaction in vivo.

Experimental metastasis mouse model is a simple and yet physiologically relevant metastasis model. The tumor cells are injected intravenously (i.v) into ...

Preparation of Tumor Antigen-loaded Mature Dendritic Cells for Immunotherapy

While clinical studies have established that antigen-loaded DC vaccines are safe and promising therapy for tumors 1, their clinical efficacy remains to be established. The method described below, prepared in accordance with Good Manufacturing Process (GMP) guidelines, is an optimization of the most common ex vivo preparation method for generating large numbers of DCs for clinical studies 2.
Our method utilizes the synthetic TLR 3 agonist Polyinosinic-Polycytidylic Acid-poly-L-lysine Carboxymethylcellulose (Poly-ICLC) to stimulate the DCs. Our previous study established that Poly-ICLC is the most potent individual maturation stimulus for human DCs as assessed by an upregulation of CD83 and CD86, induction of interleukin-12 (IL-12), tumor necrosis factor (TNF), interferon gamma-induced protein 10 (IP-10), interleukmin 1 (IL-1), and type I interferons (IFN), and minimal interleukin 10 (IL-10) production.
DCs are differentiated from frozen peripheral blood mononuclear cells (PBMCs) obtained by leukapheresis. PBMCs are isolated by Ficoll gradient centrifugation and frozen in aliquots. On Day 1, PBMCs are thawed and plated onto tissue culture flasks to select for monocytes which adhere to the plastic surface after 1-2 hr incubation at 37 &deg;C in the tissue culture incubator. After incubation, the lymphocytes are washed off and the adherent monocytes are cultured for 5 days in the presence of interleukin-4 (IL-4) and granulocyte macrophage-colony stimulating factor (GM-CSF) to differentiate to immature DCs. On Day 6, immature DCs are pulsed with the keyhole limpet hemocyanin (KLH) protein which serves as a control for the quality of the vaccine and may boost the immunogenicity of the vaccine 3. The DCs are stimulated to mature, loaded with peptide antigens, and incubated overnight. On Day 7, the cells are washed, and frozen in 1 ml aliquots containing 4 - 20 x 106 cells using a controlled-rate freezer. Lot release testing for the batches of DCs is performed and must meet minimum specifications before they are injected into patients.

The most commonly used method for generating large numbers of autologous dendritic cells (DCs) for use in tumor immunotherapy is described. The method uses IL-4 and GM-CSF to differentiate DCs from monocytes. The immature DCs are stimulated to mature and then loaded with antigens before they are injected back into the patient.

While clinical studies have established that antigen-loaded DC vaccines are safe and promising therapy for tumors 1, their clinical efficacy remains to be ...

Accelerated Type 1 Diabetes Induction in Mice by Adoptive Transfer of Diabetogenic CD4+ T Cells

The nonobese diabetic (NOD) mouse spontaneously develops autoimmune diabetes after 12 weeks of age and is the most extensively studied animal model of human Type 1 diabetes (T1D). Cell transfer studies in irradiated recipient mice have established that T cells are pivotal in T1D pathogenesis in this model. We describe herein a simple method to rapidly induce T1D by adoptive transfer of purified, primary CD4+ T cells from pre-diabetic NOD mice transgenic for the islet-specific T cell receptor (TCR) BDC2.5 into NOD.SCID recipient mice. The major advantages of this technique are that isolation and adoptive transfer of diabetogenic T cells can be completed within the same day, irradiation of the recipients is not required, and a high incidence of T1D is elicited within 2 weeks after T cell transfer. Thus, studies of pathogenesis and therapeutic interventions in T1D can proceed at a faster rate than with methods that rely on heterogenous T cell populations or clones derived from diabetic NOD mice.

We provide a reproducible method to induce type 1 diabetes (T1D) in mice within two weeks by the adoptive transfer of islet antigen-specific, primary CD4+ T cells.

The nonobese diabetic (NOD) mouse spontaneously develops autoimmune diabetes after 12 weeks of age and is the most extensively studied animal model of ...

Intralymphatic Immunotherapy and Vaccination in Mice

Vaccines are typically injected subcutaneously or intramuscularly for stimulation of immune responses. The success of this requires efficient drainage of vaccine to lymph nodes where antigen presenting cells can interact with lymphocytes for generation of the wanted immune responses. The strength and the type of immune responses induced also depend on the density or frequency of interactions as well as the microenvironment, especially the content of cytokines. As only a minute fraction of peripherally injected vaccines reaches the lymph nodes, vaccinations of mice and humans were performed by direct injection of vaccine into inguinal lymph nodes, i.e.&#160;intralymphatic injection. In man, the procedure is guided by ultrasound. In mice, a small (5-10 mm) incision is made in the inguinal region of anesthetized animals, the lymph node is localized and immobilized with forceps, and a volume of 10-20 &#956;l of the vaccine is injected under visual control. The incision is closed with a single stitch using surgical sutures. Mice were vaccinated with plasmid DNA, RNA, peptide, protein, particles, and bacteria as well as adjuvants, and strong improvement of immune responses against all type of vaccines was observed. The intralymphatic method of vaccination is especially appropriate in situations where conventional vaccination produces insufficient immunity or where the amount of available vaccine is limited.

Prophylactic and therapeutic vaccination often fails to stimulate strong immune responses due to week drainage of the vaccine to lymph nodes and consequently poor involvement of immune cells. By direct injection of vaccine to lymph nodes, so-called intralymphatic injection, vaccine efficacy can be strongly improved and vaccine doses can be reduced.

Vaccines are typically injected subcutaneously or intramuscularly for stimulation of immune responses. The success of this requires efficient drainage of ...

Assessing the Development of Murine Plasmacytoid Dendritic Cells in Peyer's Patches Using Adoptive Transfer of Hematopoietic Progenitors

This protocol details a method to analyze the ability of purified hematopoietic progenitors to generate plasmacytoid dendritic cells (pDC) in intestinal Peyer&#39;s patch (PP). Common dendritic cell progenitors (CDPs, lin- c-kitlo CD115+ Flt3+) were purified from the bone marrow of C57BL6 mice by FACS and transferred to recipient mice that lack a significant pDC population in PP; in this case, Ifnar-/- mice were used as the transfer recipients. In some mice, overexpression of the dendritic cell growth factor Flt3 ligand (Flt3L) was enforced prior to adoptive transfer of CDPs, using hydrodynamic gene transfer (HGT) of Flt3L-encoding plasmid. Flt3L overexpression expands DC populations originating from transferred (or endogenous) hematopoietic progenitors. At 7-10 days after progenitor transfer, pDCs that arise from the adoptively transferred progenitors were distinguished from recipient cells on the basis of CD45 marker expression, with pDCs from transferred CDPs being CD45.1+ and recipients being CD45.2+. The ability of transferred CDPs to contribute to the pDC population in PP and to respond to Flt3L was evaluated by flow cytometry of PP single cell suspensions from recipient mice. This method may be used to test whether other progenitor populations are capable of generating PP pDCs. In addition, this approach could be used to examine the role of factors that are predicted to affect pDC development in PP, by transferring progenitor subsets with an appropriate knockdown, knockout or overexpression of the putative developmental factor and/or by manipulating circulating cytokines via HGT. This method may also allow analysis of how PP pDCs affect the frequency or function of other immune subsets in PPs. A unique feature of this method is the use of Ifnar-/- mice, which show severely depleted PP pDCs relative to wild type animals, thus allowing reconstitution of PP pDCs in the absence of confounding effects from lethal irradiation.

Assessing the Development of Murine Plasmacytoid Dendritic Cells in Peyer&#039;s Patches Using Adoptive Transfer of Hematopoietic Progenitors

This protocol describes experimental procedures to assess the differentiation of plasmacytoid dendritic cells in Peyer&#8217;s patch from common dendritic cell progenitors, using techniques involving FACS-mediated cell isolation, hydrodynamic gene transfer, and flow analysis of immune subsets in Peyer&#8217;s patch.

This protocol details a method to analyze the ability of purified hematopoietic progenitors to generate plasmacytoid dendritic cells (pDC) in intestinal ...

Generation of CAR T Cells for Adoptive Therapy in the Context of Glioblastoma Standard of Care

Adoptive T cell immunotherapy offers a promising strategy for specifically targeting and eliminating malignant gliomas. T cells can be engineered ex vivo to express chimeric antigen receptors specific for glioma antigens (CAR T cells). The expansion and function of adoptively transferred CAR T cells can be potentiated by the lymphodepletive and tumoricidal effects of standard of care chemotherapy and radiotherapy. We describe a method for generating CAR T cells targeting EGFRvIII, a glioma-specific antigen, and evaluating their efficacy when combined with a murine model of glioblastoma standard of care. T cells are engineered by transduction with a retroviral vector containing the anti-EGFRvIII CAR gene. Tumor-bearing animals are subjected to host conditioning by a course of temozolomide and whole brain irradiation at dose regimens designed to model clinical standard of care. CAR T cells are then delivered intravenously to primed hosts. This method can be used to evaluate the antitumor efficacy of CAR T cells in the context of standard of care.

The lymphodepletive and immunomodulatory effects of chemotherapy and radiation standard of care can be leveraged to enhance the antitumor efficacy of T cell immunotherapy. We outline a method for generating EGFRvIII-specific chimeric antigen receptor (CAR) T cells and administering them in the context of glioblastoma standard of care.

Adoptive T cell immunotherapy offers a promising strategy for specifically targeting and eliminating malignant gliomas. T cells can be engineered ex vivo ...

Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4+CD45RBhigh T Cells into Immunodeficient Mice

There are many different animal models available for studying the pathogenesis of human inflammatory bowel diseases (IBD), each with its own advantages and disadvantages. We describe here an experimental colitis model that is initiated by adoptive transfer of syngeneic splenic CD4+CD45RBhigh T cells into T and B cell deficient recipient mice. The CD4+CD45RBhigh T cell population that largely consists of na&#239;ve effector cells is capable of inducing chronic intestinal inflammation, closely resembling key aspects of human IBD. This method can be manipulated to study aspects of disease onset and progression. Additionally it can be used to study the function of innate, adaptive, and regulatory immune cell populations, and the role of environmental exposures, i.e., the microbiota, in intestinal inflammation. In this article we illustrate the methodology for inducing colitis with a step-by-step protocol. This includes a video demonstration of key technical aspects required to successfully develop this murine model of experimental colitis for research purposes.

Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4+CD45RBhigh T Cells into Immunodeficient Mice

Here, we present a protocol to induce colonic inflammation in mice by adoptive transfer of syngeneic CD4+CD45RBhigh T cells into T and B cell deficient recipients. Clinical and histopathological features mimic human inflammatory bowel diseases. This method allows the study of the initiation of colonic inflammation and progression of disease.

There are many different animal models available for studying the pathogenesis of human inflammatory bowel diseases (IBD), each with its own advantages ...

Generation of Discriminative Human Monoclonal Antibodies from Rare Antigen-specific B Cells Circulating in Blood

Monoclonal antibodies (mAbs) are powerful tools useful for both fundamental research and in biomedicine. Their high specificity is indispensable when the antibody needs to distinguish between highly related structures (e.g., a normal protein and a mutated version thereof). The current way of generating such discriminative mAbs involves extensive screening of multiple Ab-producing B cells, which is both costly and time consuming. We propose here a rapid and cost-effective method for the generation of discriminative, fully human mAbs starting from human blood circulating B lymphocytes. The originality of this strategy is due to the selection of specific antigen binding B cells combined with the counter-selection of all other cells, using readily available Peripheral Blood Mononuclear Cells (PBMC). Once specific B cells are isolated, cDNA (complementary deoxyribonucleic acid) sequences coding for the corresponding mAb are obtained using single cell Reverse Transcription-Polymerase Chain Reaction (RT-PCR) technology and subsequently expressed in human cells. Within as little as 1 month, it is possible to produce milligrams of highly discriminative human mAbs directed against virtually any desired antigen naturally detected by the B cell repertoire.

We describe a method for the production of human antibodies specific for an antigen of interest, starting from rare B cells circulating in human blood. Generation of these natural antibodies is efficient and rapid, and the antibodies obtained can discriminate between highly related antigens.

Monoclonal antibodies (mAbs) are powerful tools useful for both fundamental research and in biomedicine. Their high specificity is indispensable when the ...

Stereotactic Adoptive Transfer of Cytotoxic Immune Cells in Murine Models of Orthotopic Human Glioblastoma Multiforme Xenografts

Glioblastoma multiforme (GBM), the most frequent and aggressive primary brain cancer in adults, is generally associated with a poor prognosis, and scarce efficient therapies have been proposed over the last decade. Among the promising candidates for designing novel therapeutic strategies, cellular immunotherapies have been targeted to eliminate highly invasive and chemo-radioresistant tumor cells, likely involved in a rapid and fatal relapse of this cancer. Thus, administration(s) of allogeneic GBM-reactive immune cell effectors, such as human V&#978;9V&#948;2 T lymphocytes, in the vicinity of the tumor would represents a unique opportunity to deliver efficient and highly concentrated therapeutic agents directly into the site of brain malignancies. Here, we present a protocol for the preparation and the stereotaxic administration of allogeneic human lymphocytes in immunodeficient mice carrying orthotopic human primary brain tumors. This study provides a preclinical proof-of-concept for both the feasibility and the antitumor efficacy of these cellular immunotherapies that rely on stereotactic injections of allogeneic human lymphocytes within intrabrain tumor beds.

Here, we present a protocol for the preparation and the stereotaxic administration of allogeneic human lymphocytes in immunodeficient mice carrying orthotopic human primary brain tumors. This study provides a proof-of-concept for both the feasibility and the antitumor efficacy of intrabrain-delivered cellular immunotherapies.

Glioblastoma multiforme (GBM), the most frequent and aggressive primary brain cancer in adults, is generally associated with a poor prognosis, and scarce ...

Isolation and Adoptive Transfer of High Salt Treated Antigen-presenting Dendritic Cells

Excess dietary salt intake contributes to inflammation and plays a vital role in the development of hypertension. We previously found that antigen-presenting dendritic cells (DCs) can sense elevated extracellular sodium leading to the activation of the NADPH oxidase and formation of isolevuglandin (IsoLG)-protein adducts. These IsoLG-protein adducts react with self-proteins and promote an autoimmune-like state and hypertension. We have developed and optimized state-of-the-art methods to study DC function in hypertension. Here, we provide a detailed protocol for isolation, in vitro treatment with elevated sodium, and adoptive transfer of murine splenic CD11c+ cells into recipient mice to study their role in hypertension.

Here, we present a protocol to isolate dendritic cells from murine spleens by magnetic cell sorting and subsequent adoptive transfer into na&#239;ve mice. The model of high-salt activated dendritic cells was chosen to explain the step-by-step procedures of adoptive transfer and flow cytometry.