Retention of the spermatogonial phenotype following gene correction.

Abstract

<p>Immunostaining was performed on gene-corrected GT59 (left) and GT65 cells (right): DAZL, a germ cell specific marker; GFRA1, POU5F1, ETV5, CDH1, and SOHLH1, markers of undifferentiated spermatogonia. Additionally, GT59 and GT65 cells were treated with the differentiation factor, retinoic acid (1 µM) or a vehicle control and then immunostained to examine levels of ZBTB16, a marker of undifferentiated spermatogonia. Bar represents 50 microns.</p