Ovarian activin receptor subtype and follistatin gene expression in rats: Reciprocal regulation by gonadotropins

被引:19
作者
Aloi, JA [1 ]
Marshall, JC [1 ]
Yasin, M [1 ]
Gilrain, JT [1 ]
Haisenleder, DJ [1 ]
Dalkin, AC [1 ]
机构
[1] UNIV VIRGINIA,HLTH SCI CTR,DEPT INTERNAL MED,MED CTR,DIV ENDOCRINOL & METAB,CHARLOTTESVILLE,VA 22908
关键词
D O I
10.1095/biolreprod56.6.1565
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The production of activin, follistatin (FS), and inhibin, proteins present in the ovary and involved in mammalian reproduction, is regulated by gonadotropins and estradiol. We report here gonadotropin regulation of ovarian activin receptor (ActR) subtype and FS mRNAs. Expression of ActRI, ActRIIA, ActRIIB, and FS mRNA was measured on the afternoon of proestrus (1800 h) and the morning of estrus (0800 h). ActRI and ActIIA subtype mRNA concentrations fell by similar to 50% (p < 0.05) following the proestrous gonadotropin surge (ActRIIB mRNA was undetectable), while FS mRNA was unchanged. To define the contribution of gonadotropins, hypophysectomized (HYPOX) female rats were given recombinant human (rh) FSH and hCG, which decreased both ActR mRNAs (by similar to 70% and similar to 50% for ActRI and IIA, respectively) and increased FS mRNA by 2-fold. As gonadotropins could act via estradiol (E-2), HYPOX rats were given E-2; ActRI was decreased, but ActRIIA mRNA was increased. The actions of gonadotropins were preferential, as the combination of rhFSH and hCG with E-2 reduced ActRIIA mRNA. FS mRNA was increased to a similar degree by E-2 and/or gonadotropins. These data suggest that gonadotropins regulate ActR and FS gene expression via multiple mechanisms. Both a direct action on ActRIIA (inhibition) and an indirect action through E-2 on ActRI (inhibition) and FS (stimulation) suggest potential physiologic mechanisms for the reciprocal regulation of ActR subtype and FS mRNAs.
引用
收藏
页码:1565 / 1569
页数:5
相关论文
共 42 条
[1]   OVARIAN INHIBIN SUBUNIT GENE-EXPRESSION - REGULATION BY GONADOTROPINS AND ESTRADIOL [J].
ALOI, JA ;
DALKIN, AC ;
SCHWARTZ, NB ;
YASIN, M ;
MANN, B ;
HAISENLEDER, DJ ;
MARSHALL, JC .
ENDOCRINOLOGY, 1995, 136 (03) :1227-1232
[2]   HYBRIDIZATION HISTOCHEMICAL-LOCALIZATION OF ACTIVIN RECEPTOR SUBTYPES IN RAT-BRAIN, PITUITARY, OVARY, AND TESTIS [J].
CAMERON, VA ;
NISHIMURA, E ;
MATHEWS, LS ;
LEWIS, KA ;
SAWCHENKO, PE ;
VALE, WW .
ENDOCRINOLOGY, 1994, 134 (02) :799-808
[3]   OVARIAN REGULATION OF PITUITARY INHIBIN SUBUNIT AND ACTIVIN RECEPTOR-TYPE-II GENE-EXPRESSION - EVIDENCE FOR A NONSTEROIDAL INHIBITORY SUBSTANCE [J].
DALKIN, AC ;
GILRAIN, JT ;
MARSHALL, JC .
ENDOCRINOLOGY, 1994, 135 (03) :944-949
[4]   Pituitary activin receptor subtypes and follistatin gene expression in female rats: Differential regulation by activin and follistatin [J].
Dalkin, AC ;
Haisenleder, DJ ;
Yasin, M ;
Gilrain, JT ;
Marshall, JC .
ENDOCRINOLOGY, 1996, 137 (02) :548-554
[5]   HUMAN PLASMA-FREE ACTIVIN AND INHIBIN LEVELS DURING THE MENSTRUAL-CYCLE [J].
DEMURA, R ;
SUZUKI, T ;
TAJIMA, S ;
MITSUHASHI, S ;
ODAGIRI, E ;
DEMURA, H ;
LING, N .
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 1993, 76 (04) :1080-1082
[6]  
DEPAOLO LV, 1991, SOC EXP BIOL MED, V37, P500
[7]   ACTIVIN RECEPTOR MESSENGER-RNA EXPRESSION IN RAT TESTICULAR CELL-TYPES [J].
DEWINTER, JP ;
THEMMEN, APN ;
HOOGERBRUGGE, JW ;
KLAIJ, IA ;
GROOTEGOED, JA ;
DEJONG, FH .
MOLECULAR AND CELLULAR ENDOCRINOLOGY, 1992, 83 (01) :R1-R8
[8]  
DOI M, 1992, ENDOCRINOLOGY, V130, P139, DOI 10.1210/en.130.1.139
[9]   DETERMINATION OF TYPE-I RECEPTOR SPECIFICITY BY THE TYPE-II RECEPTORS FOR TGF-BETA OR ACTIVIN [J].
EBNER, R ;
CHEN, RH ;
LAWLER, S ;
ZIONCHECK, T ;
DERYNCK, R .
SCIENCE, 1993, 262 (5135) :900-902
[10]   ACTIVIN CAUSES PREMATURE SUPEROVULATION [J].
ERICKSON, GF ;
KOKKA, S ;
RIVIER, C .
ENDOCRINOLOGY, 1995, 136 (11) :4804-4813