by Kyoto University Fig. 1. Tonsillar GC TFH cells express abundant Tox2 and positively correlates with BCL6 and PDCD1.(A) Three tonsillar CD4+ T cell populations were defined according to the expression of ICOS and CXCR5: CXCR5hiICOShi as GC TFH, CXCR5loICOSlo as PreTFH, and CXCR5−ICOS− as naïve CD4. (B) mRNA expression of TOX, TOX2, and TFH-related genes...