Volume 28 Issue 3
May  2007
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YANG Chun, ZHANG Yu-hui, *. Expression of c-fos, Oestradiol and Oestrogen Receptor in the Testis of Rana chensinensis at Different Stages. Zoological Research, 2007, 28(3): 303-310.
Citation: YANG Chun, ZHANG Yu-hui, *. Expression of c-fos, Oestradiol and Oestrogen Receptor in the Testis of Rana chensinensis at Different Stages. Zoological Research, 2007, 28(3): 303-310.

Expression of c-fos, Oestradiol and Oestrogen Receptor in the Testis of Rana chensinensis at Different Stages

  • Received Date: 2006-11-06
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-06-22
  • Localisation of FOS, 17β-oestradiol (E2) and oestrogen receptors (ER) was investigated in testes at different stages of the spermatogenetic cycle of Rana chensinensis, using immunocytochemistry. The results showed that E2 and ER are expressed in spermatogonia, spermatocytes, spermatids, spermatozoa, Sertoli cells and Leydig cells from stage Ⅰ to stage Ⅴ of spermatogenesis. A strong positive co-expression of E2 and ER was observed in spermatids in stage Ⅱ and stage Ⅲ. The staining intensity of E2 and ER in stage Ⅲ spermatozoa was significantly higher than in stages Ⅳ and Ⅴ (P<0.01). Expression of E2 and ER in Sertoli cells appears in stage Ⅰ and decreases in intensity from stage Ⅱ to stage Ⅳ, but increases in stage Ⅴ. Expression of E2 and ER in Leydig cells was higher in stage Ⅲ than in other stages. FOS was localised in spermatogonia, spermatocytes, spermatids, Sertoli cells and Leydig cells but not spermatozoa. Expression of FOS showed stagespecific characteristics.
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