Insulin-like growth factor (IGF)-I and IGF-II stimulate progesterone production by human luteal cells: Role of IGF-I as mediator of growth hormone action

被引:22
|
作者
Apa, R [1 ]
DiSimone, N [1 ]
Ronsisvalle, E [1 ]
Miceli, F [1 ]
deFeo, D [1 ]
Caruso, A [1 ]
Lanzone, A [1 ]
Mancuso, S [1 ]
机构
[1] OASI INST RES, TROINA, ITALY
关键词
IGF-I; IGF-II; progesterone; human luteal cells;
D O I
10.1016/S0015-0282(16)58445-3
中图分类号
R71 [妇产科学];
学科分类号
100211 ;
摘要
Objective: To examine the possible direct effect of insulin-like growth factor (IGF)-I and IGF-II on basal and hCG-stimulated P production by cultured human luteal cells. The possible role of IGF-I as mediator of GH action on luteal steroidogenesis also was investigated. Design: Cultures of human luteal cells from early and midluteal phase. Setting: All corpora lutea were obtained from the Obstetrics and Gynecology Department of the Universita Cattolica, a public care center. Patients: Eight nonpregnant women between 35 and 47 years of age underwent surgery for various nonendocrine disorders such as leiomyomatosis. Interventions: Corpora lutea were obtained at the time of hysterectomy. Main Outcome Measures: Luteal cells were incubated with IGF-I or IGF-II with or without hCG at different concentrations. Growth hormone also was used alone and with an anti-IGF-I-antibody. Results: We found that IGF-I and IGF-II were able to stimulate directly the P production at all used concentrations and that both of them significantly amplified the steroidogenic hCG effect. Finally, IGF-I was shown to mediate the positive GH action on P synthesis.
引用
收藏
页码:235 / 239
页数:5
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