Testosterone induction of poly(A)(+)-RNA synthesis and [35S]methionine incorporation into proteins of Rana esculenta Harderian gland

Mol Cell Endocrinol. 1992 Apr;84(3):R51-6. doi: 10.1016/0303-7207(92)90040-d.

Abstract

The role of androgens in the cyclic secretory activity of the Rana esculenta Harderian gland (HG) was studied. Total RNA showed a dramatic increase in October and May when the nuclear androgen receptors peak. During the resumption of the secretory activity a gradual increase of poly(A)(+)-RNA was detected; during the enhancement phase (May) a peak of the poly(A)(+)-RNA fraction was found. In in vitro experiments testosterone increased the incorporation of [3H]uridine into the poly(A)(+)-RNA fraction and also that of [35S]methionine into a newly synthesized protein fraction (100 kDa). The latter effect is prevented by the exposure of the cells to the antiandrogen, cyproterone acetate (CPA). These findings reveal that, besides hamsters, the HG is a target for androgens in the frog.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cyproterone / analogs & derivatives
  • Cyproterone / pharmacology
  • Cyproterone Acetate
  • Harderian Gland / metabolism*
  • Male
  • Methionine / metabolism
  • Poly A / biosynthesis*
  • Protein Biosynthesis*
  • RNA / biosynthesis*
  • RNA, Messenger
  • Rana esculenta
  • Testosterone / pharmacology*
  • Uridine / metabolism

Substances

  • RNA, Messenger
  • Poly A
  • Testosterone
  • Cyproterone Acetate
  • RNA
  • Methionine
  • Cyproterone
  • Uridine