Involvement of TauT/SLC6A6 in Taurine Transport at the Blood-Testis Barrier.

Taurine transport was investigated at the blood-testis barrier (BTB) formed by Sertoli cells. An integration plot analysis of mice showed the apparent influx permeability clearance of [H]taurine (27.7 μL/(min·g testis)), which was much higher than that of a non-permeable paracellular marker, suggesting blood-to-testis transport of taurine, which may involve a facilitative taurine transport system at the BTB.