Multiplexed Immunofluorescence Imaging to Analyze Immunotherapy-Resistant T Cell Subpopulations
Published: April 30, 2024
Abstract
Source: Granier, C., et al. Multiplexed Immunofluorescence Analysis and Quantification of Intratumoral PD-1+ Tim-3+ CD8+ T Cells. J. Vis. Exp. (2018).
This video demonstrates an in-situ fluorescence multispectral imaging technique to analyze different subpopulations of infiltrating T cells in tumor tissue. A renal cell carcinoma tissue cryosection is treated with antibodies to label CD8+ T cells that express specific inhibitory receptors and exhibit an immunotherapy-resistant phenotype. The labeled section is visualized using a multispectral microscope to identify the distinct CD8+ T cell subpopulations.
Protocol
All procedures involving sample collection have been performed in accordance with the institute's IRB guidelines 1. In Situ Immunofluorescence Staining of tumor-infiltrating lymphocytes (TILs) Procedural guidelines Perform all experimental steps at room temperature. For all steps, perform the dilutions with Tris Buffer Saline (TBS; see Table of Materials). Perform the wash in TBS for all the st…
Representative Results
Figure 1: CD8-PD-1-Tim-3 immunostaining on a tonsil paraffin-embedded tissue. Paraffin-embedded tissue sections instead of cryopreserved sections were selected for triple immunostaining. After dewaxing and rehydration, the same protocol of staining previously developed for cryopreserved sections was applied. CD8+ T cells are located outside the germinal center, and non-CD8+ T cells expressing PD-…
Divulgaciones
The authors have nothing to disclose.
Materials
| Vectra 3 Automated Quantitative Pathology Imaging | Perkin Elmer | CLS142338 | |
| inForm cell analysis 2.1. | Perkin Elmer | CLS135781 | |
| R software | https://www.r-project.org | ||
| Dakopen delimiting pen | Dako | S2002 | |
| Tris Buffer Saline TBS Tablets | Takara, Bio Inc. | TAKT9141Z | pH7.6 100 tablet |
| Tris Buffer Saline Tween 20 TBS(+Tween20) | Takara, Bio Inc. | TAKT9142Z | pH 7.6 100 tablets |
| Biotin blocking system | Dako | X0590 | Avidin 0.1% and Biotin 0.01% |
| Normal donkey serum | Jackson Immunoresearch | 017-000-001 | 5% vol./vol. concentration |
| Fluoroshield with DAPI | Sigma-aldrich | F6057 | 1.5 µg/mL concentration |
| Knittel glass coverslip | Knittel Gläser, | 100039 | 24×60 mm 100 cover slips |
| Rabbit anti-CD8 Clone P17-V | novus | NBP1-79055 | use at 4µg/mL |
| Mouse anti-PD-1 Clone NAT | abcam | ab52587 | use at 2 µg/mL |
| Goat anti-Tim-3 | R&D | AF2365 | use at 3 µg/mL |
| Rabbit anti-PD-L1 Clone SP142 | Roche | 7309457001 | use at 1 µg/mL |
| Mouse AF647 labeled pan- Keratin Clone C11 | Cell Signalling | 4528 | use at 0.5 µg/mL |
| Goat anti-human gal9 | R&D | AF2045 | use at 0.3 µg/mL |
| Cyan 5 conjugated donkey anti-rabbit | Jackson Immunoresearch | 711-175-152 | use at 5 µg/mL |
| Biotinylated F(ab'2) donkey anti-mouse IgG | Jackson Immunoresearch | 715-066-150 | use at 3 µg/mL |
| Alexa Fluor488 conjugated donkey anti-goat IgG | abcam | ab150133 | use at 5 µg/mL |
| Cy3 labeled streptavidin | Amersham | PA43001 | use at 3 µg/mL |
| Negative control mouse IgG1 | Dako | X0931 | use at 2 µg/mL |
| IgG from goat serum | Sigma-aldrich | I5256 | use at 3 µg/mL |
| IgG from rabbit serum | Sigma-aldrich | I5006 | use at 4µg/mL |
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Citar este artículo
Multiplexed Immunofluorescence Imaging to Analyze Immunotherapy-Resistant T Cell Subpopulations. J. Vis. Exp. (Pending Publication), e22139, doi: (2024).