Name: a human peripheral blood mononuclear cell (pbmc) engrafted humanized xenograft model for translational immuno-oncology (i-o) research
Uploaded: 2019-08-15T14:00:00
Description: Watch this Scientific Journal Video about A Human Peripheral Blood Mononuclear Cell PBMC Engrafted Humanized Xenograft Model for Translational Immuno-oncology I-O Research at JoVE.com

We thank members of our laboratories for helpful discussions. This work was partially supported by the Biomedical and Life Science Innovation and Cultivation Research Program of the Beijing Municipal Science and Technology Commission under Grant Agreement No. Z151100003915070 (project &#34;Preclinical study on a novel immune oncology anti-tumor drug BGB-A317&#34;), and it was also partially supported by internal company funding for preclinical research.

All procedures performed in studies involving human participants were in accordance with the ethical standards of BeiGene and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study. All procedures performed in studies involving animals were approved by the Internal Review Board at BeiGene. This protocol has been specifically adjusted for the evaluation of BGB-A317 (...

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	<li>Pardoll, D. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+blockade+of+immune+checkpoints+in+cancer+immunotherapy.">The blockade of immune checkpoints in cancer immunotherapy.</a> Nature Reviews Cancer. 12 (4), 252-264 (2012).</li><li>Postow, M. A., Callahan, M. K., Wolchok, J. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Immune+Checkpoint+Blockade+in+Cancer+Therapy.">Immune Checkpoint Blockade in Cancer Therapy.</a> Journal of Clinical Oncology. 33 (17), 1974-1982 (2015).</li><li>Li, Z., Kang, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Emerging+therapeutic+targets+in+metastatic+progression:+A+focus+on+breast+cancer.">Emerging therapeutic targets in metastatic progression: A focus on breast cancer.</a> Pharmacology &amp; Therapeutics. 161, 79-96 (2016).</li><li>Li, Q. X., Feuer, G., Ouyang, X., An, X. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Experimental+animal+modeling+for+immuno-oncology.">Experimental animal modeling for immuno-oncology.</a> Pharmacology &amp; Therapeutics. 173, 34-46 (2017).</li><li>Fisher, T. 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=Targeting+of+4-1BB+by+monoclonal+antibody+PF-05082566+enhances+T-cell+function+and+promotes+anti-tumor+activity.">Targeting of 4-1BB by monoclonal antibody PF-05082566 enhances T-cell function and promotes anti-tumor activity.</a> Cancer Immunology, Immunotherapy. 61 (10), 1721-1733 (2012).</li><li>McCormack, E., 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=Bi-specific+TCR-anti+CD3+redirected+T-cell+targeting+of+NY-ESO-1-+and+LAGE-1-positive+tumors.">Bi-specific TCR-anti CD3 redirected T-cell targeting of NY-ESO-1- and LAGE-1-positive tumors.</a> Cancer Immunology, Immunotherapy. 62 (4), 773-785 (2013).</li><li>Rongvaux, 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=Human+hemato-lymphoid+system+mice:+current+use+and+future+potential+for+medicine.">Human hemato-lymphoid system mice: current use and future potential for medicine.</a> Annual Review of Immunology. 31, 635-674 (2013).</li><li>Matsumura, T., 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+CD5++B+cells+develop+predominantly+in+the+spleen+of+NOD/SCID/gammac(null)+(NOG)+mice+transplanted+either+with+human+umbilical+cord+blood,+bone+marrow,+or+mobilized+peripheral+blood+CD34++cells.">Functional CD5+ B cells develop predominantly in the spleen of NOD/SCID/gammac(null) (NOG) mice transplanted either with human umbilical cord blood, bone marrow, or mobilized peripheral blood CD34+ cells.</a> Experimental Hematology. 31 (9), 789-797 (2003).</li><li>Zhang, T., 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+binding+of+an+anti-PD-1+antibody+to+FcgammaRIota+has+a+profound+impact+on+its+biological+functions.">The binding of an anti-PD-1 antibody to FcgammaRIota has a profound impact on its biological functions.</a> Cancer Immunology, Immunotherapy. 67 (7), 1079-1090 (2018).</li><li>Gamelli, R. L., Ershler, W. B., Hacker, M. P., Foster, R. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+effect+of+disulfiram+on+cyclophosphamide-mediated+myeloid+toxicity.">The effect of disulfiram on cyclophosphamide-mediated myeloid toxicity.</a> Cancer Chemotherapy and Pharmacology. 16 (2), 153-155 (1986).</li><li>Dunay, I. R., Fuchs, A., Sibley, L. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Inflammatory+monocytes+but+not+neutrophils+are+necessary+to+control+infection+with+Toxoplasma+gondii+in+mice.">Inflammatory monocytes but not neutrophils are necessary to control infection with Toxoplasma gondii in mice.</a> Infection and Immunity. 78 (4), 1564-1570 (2010).</li><li>Ghasemlou, N., Chiu, I. M., Julien, J. P., Woolf, C. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=CD11b+Ly6G-+myeloid+cells+mediate+mechanical+inflammatory+pain+hypersensitivity.">CD11b+Ly6G- myeloid cells mediate mechanical inflammatory pain hypersensitivity.</a> Proceedings of the National Academy of Sciences of the United States of America. 112 (49), 6808-6817 (2015).</li><li>Takao, K., Miyakawa, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Genomic+responses+in+mouse+models+greatly+mimic+human+inflammatory+diseases.">Genomic responses in mouse models greatly mimic human inflammatory diseases.</a> Proceedings of the National Academy of Sciences of the United States of America. 112 (4), 1167-1172 (2015).</li><li>Payne, K. J., Crooks, G. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Immune-cell+lineage+commitment:+translation+from+mice+to+humans.">Immune-cell lineage commitment: translation from mice to humans.</a> Immunity. 26 (6), 674-677 (2007).</li><li>Mestas, J., Hughes, C. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Of+mice+and+not+men:+differences+between+mouse+and+human+immunology.">Of mice and not men: differences between mouse and human immunology.</a> Journal of Immunology. 172 (5), 2731-2738 (2004).</li><li>von Herrath, M. G., Nepom, G. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Lost+in+translation:+barriers+to+implementing+clinical+immunotherapeutics+for+autoimmunity.">Lost in translation: barriers to implementing clinical immunotherapeutics for autoimmunity.</a> Journal of Experimental Medicine. 202 (9), 1159-1162 (2005).</li><li>Mahdi, B. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+glow+of+HLA+typing+in+organ+transplantation.">A glow of HLA typing in organ transplantation.</a> Clinical and Translational Medicine. 2 (1), 6 (2013).</li><li>Shultz, L. D., Brehm, M. A., Garcia-Martinez, J. V., Greiner, D. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Humanized+mice+for+immune+system+investigation:+progress,+promise+and+challenges.">Humanized mice for immune system investigation: progress, promise and challenges.</a> Nature Reviews Immunolog. 12 (11), 786-798 (2012).</li><li>Brehm, M. A., Shultz, L. D., Luban, J., Greiner, D. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Overcoming+current+limitations+in+humanized+mouse+research.">Overcoming current limitations in humanized mouse research.</a> Journal of Infectious Diseases. 208, 125-130 (2013).</li><li>Walsh, N. C., 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=Humanized+Mouse+Models+of+Clinical+Disease.">Humanized Mouse Models of Clinical Disease.</a> Annual Review of Pathology. 12, 187-215 (2017).</li><li>Shultz, L. D., Ishikawa, F., Greiner, D. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Humanized+mice+in+translational+biomedical+research.">Humanized mice in translational biomedical research.</a> Nature Reviews Immunolog. 7 (2), 118-130 (2007).</li><li>Brehm, M. 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=NOD-scid+IL2rgnull+(NSG)+mice+deficient+in+murine+MHC+Class+I+and+Class+II+expression+support+engraftment+of+functional+human+T+cells+in+the+absence+of+acute+xenogeneic+GVHD+following+injection+of+PBMC.">NOD-scid IL2rgnull (NSG) mice deficient in murine MHC Class I and Class II expression support engraftment of functional human T cells in the absence of acute xenogeneic GVHD following injection of PBMC.</a> The Journal of Immunology. 200, 57 (2018).</li><li>King, 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=A+new+Hu-PBL+model+for+the+study+of+human+islet+alloreactivity+based+on+NOD-scid+mice+bearing+a+targeted+mutation+in+the+IL-2+receptor+gamma+chain+gene.">A new Hu-PBL model for the study of human islet alloreactivity based on NOD-scid mice bearing a targeted mutation in the IL-2 receptor gamma chain gene.</a> Clinical Immunology. 126 (3), 303-314 (2008).</li><li>Ito, 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=NOD/SCID/gamma(c)(null)+mouse:+an+excellent+recipient+mouse+model+for+engraftment+of+human+cells.">NOD/SCID/gamma(c)(null) mouse: an excellent recipient mouse model for engraftment of human cells.</a> Blood. 100 (9), 3175-3182 (2002).</li><li>Shultz, L. 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=Human+lymphoid+and+myeloid+cell+development+in+NOD/LtSz-scid+IL2R+gamma+null+mice+engrafted+with+mobilized+human+hemopoietic+stem+cells.">Human lymphoid and myeloid cell development in NOD/LtSz-scid IL2R gamma null mice engrafted with mobilized human hemopoietic stem cells.</a> Journal of Immunology. 174 (10), 6477-6489 (2005).</li><li>Sasaki, E., 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=Development+of+a+preclinical+humanized+mouse+model+to+evaluate+acute+toxicity+of+an+influenza+vaccine.">Development of a preclinical humanized mouse model to evaluate acute toxicity of an influenza vaccine.</a> Oncotarget. 9 (40), 25751-25763 (2018).</li><li>Tobin, L. M., Healy, M. E., English, K., Mahon, B. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Human+mesenchymal+stem+cells+suppress+donor+CD4(+)+T+cell+proliferation+and+reduce+pathology+in+a+humanized+mouse+model+of+acute+graft-versus-host+disease.">Human mesenchymal stem cells suppress donor CD4(+) T cell proliferation and reduce pathology in a humanized mouse model of acute graft-versus-host disease.</a> Clinical and Experimental Immunology. 172 (2), 333-348 (2013).</li></ol>

Our knowledge of cancer development and progression has advanced significantly in recent years, with focus on a comprehensive understanding of both the tumor cells and its associated stroma. Harnessing the host immune mechanisms could induce a greater impact against cancer cells, representing a promising treatment strategy. Murine models with intact mouse immune systems, such as syngeneic and GEM models, have been widely used to study checkpoint-mediated immunity. Efficacy assessments using these models depend largely on...

Immuno-oncology (I-O) is a rapidly expanding field of cancer treatment. Researchers have recently started to appreciate the therapeutic potential of modulating functions of the immune system to attack tumors. Immune checkpoint blockades have demonstrated encouraging activities in a variety of cancer types, including melanoma, renal cell carcinoma, head and neck, lung, bladder and prostate cancers1,2. Contrary to targeted therapies that directly kill &#160;cancer cells, I-O therapies potentiate the body&#8217;s immune system to attack tumors3.
To date, numerous relevant I-O animal models have been established. These include: 1) mouse tumor cell lines or tumor homograft in syngeneic mice; 2) spontaneous tumors derived from genetically engineered mouse (GEM) or carcinogen-induction; 3) chimeric GEMs with the knock-in of human drug target(s) in a functional murine immune system; and 4) mice with reconstituted human immunity transplanted with human cancer cells or patient-derived xenografts (PDXs). Each of these models have obvious advantages as well as limitations, which have been described and reviewed extensively elsewhere4.
Reconstitution of human immunity in immunodeficient mice have been growingly appreciated as a clinically relevant approach for translational I-O research. This is usually achieved through either 1) engraftment of adult immune cells (e.g., peripheral blood mononuclear cells (PMBC))5,6, or 2) engraftment of hematopoietic stem cells (HSC) from, for example, umbilical cord blood or fetal liver7,8. These humanized mice could support the growth of human tumors, thus allowing the assessment of I-O therapies in the context of both human immunity and human cancers. Despite the advantages, applications of humanized mice in I-O research were usually hindered by several concerns, such as long model development time and considerably high cost.
Here, we describe a human PBMC-based model that could be widely applied for translational I-O studies. This model is comparatively time- and cost-effective with high reproducibility in efficacy studies. It has been used in-house for the evaluations of several I-O therapeutics currently under preclinical and clinical development. BGB-A317 (Tislelizumab), an investigational humanized anti-PD-1 antibody9 , is used as the example to discuss model development, characterization, and possible applications for anti-tumor efficacy analyses.

<table border="0" cellpadding="0" cellspacing="0" style="width:955px;" width="955">
	<colgroup>
		<col />
		<col />
		<col />
		<col />
	</colgroup>
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:408px;">PBMC separation /cell culture</td>
			<td style="width:211px;"></td>
			<td style="width:193px;"></td>
			<td style="width:143px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Histopaque-1077</td>
			<td style="width:211px;">Sigma</td>
			<td style="width:193px;">10771</td>
			<td style="width:143px;">Cell isolation</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">DMEM</td>
			<td style="width:211px;">Corning</td>
			<td style="width:193px;">10-013-CVR</td>
			<td style="width:143px;">Cell culture</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">DPBS</td>
			<td style="width:211px;">Corning</td>
			<td style="width:193px;">21-031-CVR</td>
			<td style="width:143px;">Cell culture</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">FBS</td>
			<td style="width:211px;">Corning</td>
			<td style="width:193px;">35-076-CV</td>
			<td style="width:143px;">Cell culture</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Penicillin-Streptomycin, Liquid</td>
			<td style="width:211px;">Gibco</td>
			<td style="width:193px;">15140-163</td>
			<td style="width:143px;">Cell culture</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Trypsin-EDTA (0.25%), phenol red</td>
			<td style="width:211px;">Gibco</td>
			<td style="width:193px;">25200-114</td>
			<td style="width:143px;">Cell culture</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:408px;">Matrigel</td>
			<td style="width:211px;">Corning</td>
			<td style="width:193px;">356237</td>
			<td style="width:143px;">CDX inoculation</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:408px;">FACS analysis</td>
			<td style="width:211px;"></td>
			<td style="width:193px;"></td>
			<td style="width:143px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:408px;">Deoxyribonuclease I from bovine pancreas</td>
			<td style="width:211px;">Sigma</td>
			<td style="width:193px;">DN25</td>
			<td style="width:143px;">Sample preparation</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:408px;">Collagenase Type I</td>
			<td style="width:211px;">Sigma</td>
			<td style="width:193px;">C0130</td>
			<td style="width:143px;">Sample preparation</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-mouse/human CD11b (M1/70) antibody</td>
			<td style="width:211px;">BioLegend</td>
			<td style="width:193px;">101206</td>
			<td style="width:143px;">FACS</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-mouse Ly-6C (HK1.4) antibody</td>
			<td style="width:211px;">BioLegend</td>
			<td style="width:193px;">128008</td>
			<td style="width:143px;">FACS</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-mouse Ly-6G (1A8) antibody</td>
			<td style="width:211px;">BioLegend</td>
			<td style="width:193px;">127614</td>
			<td style="width:143px;">FACS</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-human CD8 (OKT8) antibody</td>
			<td style="width:211px;">Sungene Biotech</td>
			<td style="width:193px;">H10082-11H</td>
			<td style="width:143px;">FACS</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-human CD279 (MIH4) antibody</td>
			<td style="width:211px;">eBioscience</td>
			<td style="width:193px;">12-9969-42</td>
			<td style="width:143px;">FACS</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-human CD3 (HIT3a) antibody</td>
			<td style="width:211px;">4A Biotech</td>
			<td style="width:193px;">--</td>
			<td style="width:143px;">FACS</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:408px;">Guava easyCyte 8HT Benchtop Flow Cytometer</td>
			<td style="width:211px;">Millipore</td>
			<td style="width:193px;">0500-4008</td>
			<td style="width:143px;">FACS</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:408px;">Tumor/PDX implantation /dosing / measurement</td>
			<td style="width:211px;"></td>
			<td style="width:193px;"></td>
			<td style="width:143px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:408px;">Cyclophosphamide</td>
			<td style="width:211px;">J&#38;K</td>
			<td style="width:193px;">Cat#419656, CAS#6055-19-2</td>
			<td style="width:143px;">In vivo efficacy</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:408px;">Disulfiram</td>
			<td style="width:211px;">J&#38;K</td>
			<td style="width:193px;">Cat#591123, CAS#97-77-8</td>
			<td style="width:143px;">In vivo efficacy</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Syringe</td>
			<td style="width:211px;">BD</td>
			<td style="width:193px;">300841</td>
			<td style="width:143px;">CDX inoculation</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:408px;">Hypodermic needles (14G)</td>
			<td style="width:211px;">Shanghai SA Mediciall &#38; Plastic Instruments Co., Ltd.</td>
			<td style="width:193px;">0.7*32 TW SB</td>
			<td style="width:143px;">PDX inoculation</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:408px;">Vernier Caliper (MarCal)</td>
			<td style="width:211px;">Mahr</td>
			<td style="width:193px;">16ER</td>
			<td style="width:143px;">Tumor measurement</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:408px;">IVC individual ventilated cages</td>
			<td style="width:211px;">Lingyunboji Ltd.</td>
			<td style="width:193px;">IVC-128</td>
			<td style="width:143px;">Animal facility</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:408px;">IHC</td>
			<td style="width:211px;"></td>
			<td style="width:193px;"></td>
			<td style="width:143px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Leica ASP200 Vacuum tissue processor</td>
			<td style="width:211px;">Leica</td>
			<td style="width:193px;">ASP200</td>
			<td style="width:143px;">IHC</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:408px;">Leica RM2235 Manual Rotary Microtome for Routine Sectioning</td>
			<td style="width:211px;">Leica</td>
			<td style="width:193px;">RM2235</td>
			<td style="width:143px;">IHC</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Leica EG1150 H Heated Paraffin Embedding Module</td>
			<td style="width:211px;">Leica</td>
			<td style="width:193px;">EG1150 H</td>
			<td style="width:143px;">IHC</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Ariol-Clinical IHC and FISH Scanner</td>
			<td style="width:211px;">Leica</td>
			<td style="width:193px;">Ariol</td>
			<td style="width:143px;">IHC</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-human CD8 (EP334) antibody</td>
			<td style="width:211px;">ZSGB-Bio</td>
			<td style="width:193px;">ZA-0508</td>
			<td style="width:143px;">IHC</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-human PD1 [NAT105] antibody</td>
			<td style="width:211px;">Abcam</td>
			<td style="width:193px;">ab52587</td>
			<td style="width:143px;">IHC</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:408px;">Anti-human PD-L1 (E1L3N) antibody</td>
			<td style="width:211px;">Cell Signaling Technology</td>
			<td style="width:193px;">13684S</td>
			<td style="width:143px;">IHC</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:408px;">Polink-2 plus Polymer HRP Detection System</td>
			<td style="width:211px;">ZSGB-Bio</td>
			<td style="width:193px;">PV-9001/9002</td>
			<td style="width:143px;">IHC</td>
		</tr>
	</tbody>
</table>

a human peripheral blood mononuclear cell (pbmc) engrafted humanized xenograft model for translational immuno-oncology (i-o) research

The discovery and development of immuno-oncology (I-O) therapy in recent years represents a milestone in the treatment of cancer. However, treatment challenges persist. Robust and disease-relevant animal models are vital resources for continued preclinical research and development in order to address a range of additional immune checkpoints. Here, we describe a human peripheral blood mononuclear cell (PBMC) &#8212; based humanized xenograft model. BGB-A317 (Tislelizumab), an investigational humanized anti-PD-1 antibody in late-stage clinical development, is used as an example to discuss platform set-up, model characterization and drug efficacy evaluations. These humanized mice support the growth of most human tumors tested, thus allowing the assessment of I-O therapies in the context of both human immunity and human cancers. Once established, our model is comparatively time- and cost-effective, and usually yield highly reproducible results. We suggest that the protocol outlined in this article could serve as a general guideline for establishing mouse models reconstituted with human PBMC and tumors for I-O research.

Following the procedures presented here, a PBMC-based humanized xenograft model was successfully established. In brief, CP myeloablation effects in NOD/SCID mice was determined by flow cytometry analysis of neutrophil and monocyte populations post CP and DS treatment (Figure 1). 100 mg/kg CP plus 125 mg/kg DS was determined as the optimal dose and used in later studies as the regimen results in maximum depletion of neutrophils and monocytes without causing severe toxicity to mice. Next, huma...

Watch this Scientific Journal Video about A Human Peripheral Blood Mononuclear Cell PBMC Engrafted Humanized Xenograft Model for Translational Immuno-oncology I-O Research at JoVE.com

A Human Peripheral Blood Mononuclear Cell PBMC Engrafted Humanized Xenograft Model for Translational Immuno-oncology I-O Research

We describe a human peripheral blood mononuclear cell (PBMC) &#8212; based humanized xenograft mouse model for translational immuno-oncology research. This protocol could serve as a general guideline for establishing and characterizing similar models for I-O therapy assessment.

A Human Peripheral Blood Mononuclear Cell (PBMC) Engrafted Humanized Xenograft Model for Translational Immuno-oncology (I-O) Research

The discovery and development of immuno-oncology (I-O) therapy in recent years represents a milestone in the treatment of cancer. However, treatment ...

Research

JoVE Journal

Cancer Research

Development and Maintenance of a Preclinical Patient Derived Tumor Xenograft Model for the Investigation of Novel Anti-Cancer Therapies

Patient derived tumor xenograft (PDTX) models provide a necessary platform in facilitating anti-cancer drug development prior to human trials. Human tumor ...

A Mouse Model of Fatigue Induced by Peripheral Irradiation

Cancer-related fatigue (CRF) is a distressing and costly condition that often affects patients receiving cancer treatments, including radiation therapy. ...

Tumor Engraftment in a Xenograft Mouse Model of Human Mantle Cell Lymphoma

B lymphocytes are key players in immune cell circulation and they mainly home to and reside in lymphoid organs. While normal B cells only proliferate when ...

Development of a Human Preclinical Model of Osteoclastogenesis from Peripheral Blood Monocytes Co-cultured with Breast Cancer Cell Lines

The crosstalk between tumor cells and bone cells in the bone microenvironment is crucial to understanding the mechanism of bone metastasis formation. We ...

Automated Multiplex Immunofluorescence Panel for Immuno-oncology Studies on Formalin-fixed Carcinoma Tissue Specimens

Continued developments in immuno-oncology require an increased understanding of the mechanisms of cancer immunology. The immunoprofiling analysis of ...

Patient-derived Orthotopic Xenograft Models for Human Urothelial Cell Carcinoma and Colorectal Cancer Tumor Growth and Spontaneous Metastasis

Cancer patients have poor prognoses when lymph node (LN) involvement is present in both high-grade urothelial cell carcinoma (HG-UCC) of the bladder and ...

Patient-derived Heterogeneous Xenograft Model of Pancreatic Cancer Using Zebrafish Larvae as Hosts for Comparative Drug Assessment

Patient-derived tumor xenograft (PDX) and cell-derived tumor xenograft (CDX) are important techniques for preclinical assessment, medication guidance and ...

A Melanoma Patient-Derived Xenograft Model

Accumulating evidence suggests that molecular and biological properties differ in melanoma cells grown in traditional two-dimensional tissue culture ...

Establishment of Gastric Cancer Patient-derived Xenograft Models and Primary Cell Lines

The use of preclinical models to advance our understanding of tumor biology and investigate the efficacy of therapeutic agents is key to cancer research. ...

Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from S&#233;zary Syndrome Patients for Transcriptomic Profiling

Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from SÃƒÆ’Ã‚Â©zary Syndrome Patients for Transcriptomic Profiling

Cutaneous T-cell lymphomas (CTCL) are derived from the transformation and uncontrolled proliferation of mature skin-homing T cells, and mycosis fungoides ...