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Updated: Jun 20, 2026

Retroviral Transduction of T-cell Receptors in Mouse T-cells
Published on: October 22, 2010
Efficient Retroviral Transduction and Competitive Homing for Investigating GPCR-Mediated T-Cell Localization in
Aiman Ayesha1, Borja Ocon2, Yuhan Bi2
1Department of Pathology, Stanford University School of Medicine; Palo Alto Veterans Institute for Research; Veterans Affairs Palo Alto Health Care System; aiman@stanford.edu.
A new competitive homing assay tracks G-protein coupled receptor (GPCR)-mediated T-cell localization. This method reveals how GPCRs influence immune cell positioning in various tissues over time.
Area of Science:
- Immunology
- Cell Biology
- Molecular Biology
Background:
- G-protein coupled receptors (GPCRs) are crucial for immune cell trafficking.
- Understanding GPCRs' role in cell positioning is key to immune response mechanisms.
Purpose of the Study:
- To develop and validate a competitive homing assay for studying GPCR-mediated T-cell localization.
- To investigate T-cell distribution in various organs based on GPCR expression.
Main Methods:
- Improved recombinant murine stem cell virus (MSCV) transduction of T cells to express specific GPCRs.
- Competitive homing assay in recipient mice.
- Analysis of cell distribution using flow cytometry and confocal microscopy.
Main Results:
- Short-term studies (10-12h) showed distinct T-cell localization patterns in lung, trachea, stomach, and uterine horn.
- Long-term studies (1-7 weeks) revealed dynamic cell accumulation and potential repositioning within tissues.
- The assay demonstrated GPCRs' influence on tissue-specific T-cell distribution.
Conclusions:
- The competitive homing assay is a robust tool for studying GPCR-mediated cell positioning.
- Findings offer insights into immune cell trafficking and tissue-specific distribution.
- The assay has potential applications in immunology and therapeutic research.
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