Figure 1
Effect of anti-TGF-β1 (filled bars) and anti-TGF-β2 (hatched bars) antibodies on growth inhibition of mink lung CCl64 cells by heat treated culture supernatants of spermatocytes (sp.cytes), round spermatids (r. spert.), elongated spermatids (e.spert.) and Sertoli cells (S.c.). The dilutions of the culture supernatants that gave maximal growth inhibition were equivalent to 100% TGF-β activity (open bars). The final concentration of both antibodies used in this assay was 10 μg/ml. The values, which are expressed as percentage of residual TGF-β activity, represent means ± SD