Name: induction of intestinal inflammation by adoptive transfer of cbir1 tcr transgenic cd4+ t cells to immunodeficient mice
Uploaded: 2021-12-16T14:30:00
Description: Watch this Scientific Journal Video about Induction of Intestinal Inflammation by Adoptive Transfer of CBir1 TCR Transgenic CD4+ T Cells to Immunodeficient Mice at JoVE.com

This work was supported in part by the National Institutes of Health grants DK125011, AI150210, and DK124132, the University of Texas System STARs award (Y.C.), and the James W. McLaughlin Fellowship Fund from The University of Texas Medical Branch at Galveston (W.Y.). Figure 1 was created with BioRender.com.

All animal procedures were performed according to the University of Texas Medical Branch&#39;s Committee on the Use and Care of the animals. CBir1 TCR Tg mice were provided by Dr. Charles Elson of the University of Alabama at Birmingham. CBir1 TCR Tg mice can be female or male but should be at 8-12 weeks. Rag1-/- mice on the C57BL/6 background were obtained from the Jackson Laboratory10. Rag1-/- mice must be gender and age-matched, and either male or female ...

<ol>
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Although every step is essential for the reproducibility of this colitis model, there are several critical steps. The recipient Rag-/- mice should receive adequate viable na&#970;ve CD4+ T cells to induce intestinal inflammation. We used spleens for the isolation of na&#239;ve CD4+ T cells instead of MLNs. Because the yield of na&#239;ve CD4+ T cells in MLNs is much lower than in spleens. CD62L is highly expressed in na&#239;ve T cells, and CD44 and CD25 are the activa...

Inflammatory bowel diseases (IBD), mainly including Crohn&#39;s disease (CD) and ulcerative colitis (UC), are characterized by chronic, relapsing-remitting inflammation of the gastrointestinal tract, affecting millions worldwide1. Several factors have been implicated in the development and pathogenesis of IBD, including genetic susceptibility, gut microbiota, immune responses, diet, and lifestyle2. However, the exact mechanism of IBD is still not completely understood.
One of the particular interests is the interaction between gut microbiota and host immune responses in regulating intestinal inflammation3. Gut microbiota provides a series of immunostimulatory molecules and antigens, which can activate immune responses4. While the balance between effector T cells and regulatory T cells (Tregs) is critical in maintaining intestinal homeostasis, the excessive intestinal mucosal CD4+ T cell response to gut microbiota antigens contributes to intestinal inflammation5,6,7. As an immunodominant gut microbiota antigen, CBir1 flagellin has been related to the pathogenesis of human CD8,9. Furthermore, transfer of CBir1 TCR transgenic (Tg) T cells induces intestinal inflammation in immune-deficient mice6, closely resembling the human IBD, indicating that this T cell transfer model helps investigate the mechanisms of human IBD.
This work describes the detailed protocol of inducing colitis in Rag1-/- mice by adoptive transfer of CBir1 TCR Tg na&#970;ve CD4+ T cells and assessing disease severity. Besides, the anticipated results are shown, and the critical steps of the procedure and troubleshooting are discussed, which will help researchers investigate the mechanisms of pathogenesis of intestinal inflammation and test the potential drugs for treating IBD.

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		<tr>
			<td>0.22 &#181;m vacuum-driven disposable bottle top filter</td>
			<td>MilliporeSigma</td>
			<td>SCGPS05RE</td>
			<td></td>
		</tr>
		<tr>
			<td>100x Penicillin-Streptomycin</td>
			<td>Corning</td>
			<td>30-002-CI</td>
			<td></td>
		</tr>
		<tr>
			<td>100-&#181;m strainer</td>
			<td>BD Biosciences</td>
			<td>352360</td>
			<td></td>
		</tr>
		<tr>
			<td>3-mL Transfer Pipette</td>
			<td>Fisherbrand</td>
			<td>13-711-9CM</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse CD16/32</td>
			<td>Biolegend</td>
			<td>101302</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse CD25-Percp/Cy5.5</td>
			<td>Biolegend</td>
			<td>102030</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-mouse CD3-Percp/Cy5.5</td>
			<td>Biolegend</td>
			<td>100327</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse CD4 APC</td>
			<td>Biolegend</td>
			<td>100516</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse CD4 Magnetic Particles</td>
			<td>BD Biosciences</td>
			<td>551539</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse CD4-BV421</td>
			<td>Biolegend</td>
			<td>100544</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse CD62L-PE</td>
			<td>Biolegend</td>
			<td>104408</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse Foxp3-PE</td>
			<td>ThermoFisher</td>
			<td>12-5773-82</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse IFN&#947;-FITC</td>
			<td>Biolegend</td>
			<td>505806</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-Mouse IL-17A-PE/Cy7</td>
			<td>Biolegend</td>
			<td>506922</td>
			<td></td>
		</tr>
		<tr>
			<td>Automated Cell Counter</td>
			<td>Bio-rad</td>
			<td>TC20</td>
			<td></td>
		</tr>
		<tr>
			<td>Brefeldin A</td>
			<td>BD Biosciences</td>
			<td>555029</td>
			<td></td>
		</tr>
		<tr>
			<td>BSA</td>
			<td>Fisher Bioreagents</td>
			<td>BP1600-1</td>
			<td></td>
		</tr>
		<tr>
			<td>C tube</td>
			<td>Miltenyi</td>
			<td>130-093-237</td>
			<td></td>
		</tr>
		<tr>
			<td>Cell Separation Magnet</td>
			<td>BD Biosciences</td>
			<td>552311</td>
			<td></td>
		</tr>
		<tr>
			<td>Collagenase IV</td>
			<td>Sigma-Aldrich</td>
			<td>C5138</td>
			<td></td>
		</tr>
		<tr>
			<td>DAPI</td>
			<td>Sigma-Aldrich</td>
			<td>D9542</td>
			<td></td>
		</tr>
		<tr>
			<td>Dissociator Machine</td>
			<td>Miltenyi</td>
			<td>130-096-427</td>
			<td></td>
		</tr>
		<tr>
			<td>DNase I</td>
			<td>Sigma-Aldrich</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>EDTA</td>
			<td>Corning</td>
			<td>46-034-CI</td>
			<td></td>
		</tr>
		<tr>
			<td>EDTA (0.5 M, PH 8.0)</td>
			<td>Corning</td>
			<td>46-034-CI</td>
			<td></td>
		</tr>
		<tr>
			<td>FBS</td>
			<td>R&#38;D Systems</td>
			<td>S11550</td>
			<td></td>
		</tr>
		<tr>
			<td>Flow cytometer</td>
			<td>BD Biosciences</td>
			<td>LSD Fortessa</td>
			<td></td>
		</tr>
		<tr>
			<td>Heat Lamp</td>
			<td>CoverShield</td>
			<td>BR40</td>
			<td></td>
		</tr>
		<tr>
			<td>Hematoxylin and Eosin (H&#38;E) Stain Kit</td>
			<td>Abcam</td>
			<td>ab245880</td>
			<td></td>
		</tr>
		<tr>
			<td>Insulin Syringes</td>
			<td>BD Biosciences</td>
			<td>329412</td>
			<td></td>
		</tr>
		<tr>
			<td>Ionomycin</td>
			<td>ThermoFisher</td>
			<td>I24222</td>
			<td></td>
		</tr>
		<tr>
			<td>Live/dead Fixable Near-IR Dead Cell Stain kit</td>
			<td>ThermoFisher</td>
			<td>L10119</td>
			<td></td>
		</tr>
		<tr>
			<td>MaxQ 6000 Incubated/Refrigerated Stackable Shakers</td>
			<td>ThermoFisher</td>
			<td>SHKE6000</td>
			<td></td>
		</tr>
		<tr>
			<td>NH4Cl</td>
			<td>Thermo Scientific</td>
			<td>A687-500</td>
			<td></td>
		</tr>
		<tr>
			<td>Percoll</td>
			<td>GE Healthcare</td>
			<td>17-0891-01</td>
			<td></td>
		</tr>
		<tr>
			<td>Phorbol-12-myristate 13-acetate</td>
			<td>Sigma-Aldrich</td>
			<td>P8139</td>
			<td></td>
		</tr>
		<tr>
			<td>RPMI 1640 Medium</td>
			<td>Cytiva HyClone</td>
			<td>SH3002702</td>
			<td></td>
		</tr>
		<tr>
			<td>Sorter</td>
			<td>BD Biosciences</td>
			<td>Arial Fusion</td>
			<td></td>
		</tr>
		<tr>
			<td>Tissue Automatic Processor</td>
			<td>ThermoFisher</td>
			<td>STP120</td>
			<td></td>
		</tr>
		<tr>
			<td>Tissue Embedding/Processing Cassette</td>
			<td>Fisher Healthcare</td>
			<td>22048142</td>
			<td></td>
		</tr>
		<tr>
			<td>Tris Base</td>
			<td>Thermo Scientific</td>
			<td>BP154-1</td>
			<td></td>
		</tr>
		<tr>
			<td>True-Nuclear Transcription Factor Buffer Set (including Perm Buffer)</td>
			<td>Biolegend</td>
			<td>424401</td>
			<td></td>
		</tr>
	</tbody>
</table>

induction of intestinal inflammation by adoptive transfer of cbir1 tcr transgenic cd4+ t cells to immunodeficient mice

With the increase of incidence, inflammatory bowel diseases (IBD), which are chronic diseases affecting the gastrointestinal tract, impose a considerable health and financial burden on individuals and society. Therefore, it is critical to investigate the mechanisms underlying the pathogenesis and development of IBD. Here, a gut microbiota antigen-specific T cell transfer colitis model is described. CBir1 flagellin has been recognized as the immunodominant gut bacterial antigen in experimental colitis and patients with Crohn&#39;s disease. CBir1 TCR transgenic na&#970;ve CD4+ T cells, specific to CBir1 flagellin, can induce chronic colitis after adoptive transfer into immune-deficient Rag1-/- mice. The disease severity is assessed by histopathology. The CD4+ T cell phenotypes in colonic lamina propria are also determined. This model closely resembles the development of IBD, which provides an ideal murine model for investigating the mechanisms driving the pathogenesis of IBD and testing the potential drugs for treating IBD.

Approximately 5 x 106 CBir1 TCR Tg na&#970;ve CD4+ T cells per spleen were isolated from an adult CBir1 TCR Tg mouse. Transfer of CBir1 TCR Tg na&#970;ve CD4+ T cells induced chronic colitis in recipient Rag1-/- mice. After cell transfer, clinical signs were monitored to evaluate the progression of intestinal inflammation, including weight loss, stool consistency, and hunched posture. As expected, mice began to lose weight around three weeks post cell transfer, and the...

Watch this Scientific Journal Video about Induction of Intestinal Inflammation by Adoptive Transfer of CBir1 TCR Transgenic CD4+ T Cells to Immunodeficient Mice at JoVE.com

Induction of Intestinal Inflammation by Adoptive Transfer of CBir1 TCR Transgenic CD4+ T Cells to Immunodeficient Mice

In this protocol, a gut microbiota antigen-specific T cell adoptive transfer colitis model is described. CD4+ T cells are isolated from CBir1 TCR transgenic mice. These are specific for an immunodominant gut microbiota antigen CBir1 flagellin, which is transferred into recipient Rag1-/- mice, leading to intestinal inflammation.

Induction of Intestinal Inflammation by Adoptive Transfer of CBir1 TCR Transgenic CD4+ T Cells to Immunodeficient Mice

With the increase of incidence, inflammatory bowel diseases (IBD), which are chronic diseases affecting the gastrointestinal tract, impose a considerable ...

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