Infiltration of Canonical Vγ4/Vδ1 γδ T Cells in an Adriamycin-Induced Progressive Renal Failure Model

We have previously reported an infiltration of renal interstitial γδ T cells in Adriamycin-induced progressive glomerulosclerosis in the rat kidney. The TCR repertoire and sequences used by these γδ T cells have now been studied. Two injections of Adriamycin 14 days apart caused segmental glomerulosclerosis, massive interstitial infiltration of mononuclear cells, and end-stage renal failure. Flow cytometry of lymphocyte subpopulations with Abs to CD3, the γδ TCR, and the αβ TCR showed that γδ T cells as a proportion of CD3 + cells were increased in Adriamycin-treated kidneys (8.5 ± 5.4%), but not in lymph nodes (1.3 ± 0.4%). A semiquantitative score of glomerular damage ( r = 0.65; p r = 0.62; p