Discoidin domain receptor 2 expression increases phagocytotic capacity in sertoli cells of sertoli cell-only syndrome testes.

Discoidin domain receptor 2 (DDR2) belongs to the receptor tyrosine kinase (RTK) family, other RTKs have been reported to regulate phagocytic function of Sertoli cells (SCs), yet little is known about the function of DDR2 in Sertoli cells. In the present study, we aim to explore the function and mechanism of ectopic discoidin domain receptor 2 (DDR2) expression in Sertoli cells of Sertoli cell-only syndrome (SCOS) testes. We found that discoidin domain receptor 2 (DDR2) was absent in Sertoli cells of normal testis but was expressed in Sertoli cells of SCOS testes.