Title : Mechanisms subserving the steroidogenic synergism between follicle-stimulating hormone and insulin-like growth factor I (somatomedin C). Alterations in cellular sterol metabolism in swine granulosa cells.

Pub. Date : 1987 Jun 5

PMID : 3108256






11 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 Swine granulosa cells respond to follicle-stimulating hormone (FSH) and the insulin-like growth factor, IGF-I (somatomedin C), with synergistic increases in progesterone production. Progesterone insulin like growth factor 1 Sus scrofa
2 Swine granulosa cells respond to follicle-stimulating hormone (FSH) and the insulin-like growth factor, IGF-I (somatomedin C), with synergistic increases in progesterone production. Progesterone insulin like growth factor 1 Sus scrofa
3 Conversely, exogenous sterol substrate provided in the form of low-density lipoprotein (LDL)-borne cholesterol increased the absolute magnitude of the combined actions of IGF-I and FSH by 3-6-fold. Sterols insulin like growth factor 1 Sus scrofa
4 Conversely, exogenous sterol substrate provided in the form of low-density lipoprotein (LDL)-borne cholesterol increased the absolute magnitude of the combined actions of IGF-I and FSH by 3-6-fold. Cholesterol insulin like growth factor 1 Sus scrofa
5 In addition, when granulosa cells were incubated with [3H]cholesteryl linoleate-labeled LDL, FSH and IGF-I synergistically augmented the intracellular accumulation of [3H]cholesterol and [3H]cholesteryl ester and the production of [3H]progesterone. [3h]cholesteryl linoleate insulin like growth factor 1 Sus scrofa
6 In addition, when granulosa cells were incubated with [3H]cholesteryl linoleate-labeled LDL, FSH and IGF-I synergistically augmented the intracellular accumulation of [3H]cholesterol and [3H]cholesteryl ester and the production of [3H]progesterone. 3h]cholesterol insulin like growth factor 1 Sus scrofa
7 In addition, when granulosa cells were incubated with [3H]cholesteryl linoleate-labeled LDL, FSH and IGF-I synergistically augmented the intracellular accumulation of [3H]cholesterol and [3H]cholesteryl ester and the production of [3H]progesterone. 3h]cholesteryl ester insulin like growth factor 1 Sus scrofa
8 In addition, when granulosa cells were incubated with [3H]cholesteryl linoleate-labeled LDL, FSH and IGF-I synergistically augmented the intracellular accumulation of [3H]cholesterol and [3H]cholesteryl ester and the production of [3H]progesterone. 3h]progesterone insulin like growth factor 1 Sus scrofa
9 Moreover, FSH and IGF-I coordinately increased the total mass of free and esterified cholesterol contained in granulosa cells. Cholesterol insulin like growth factor 1 Sus scrofa
10 We conclude that FSH and IGF-I can augment absolute rates of progestin biosynthesis by granulosa cells by activating dual mechanisms: stimulation of functional cholesterol side chain cleavage activity and enhancement of effective cellular uptake and utilization of low-density lipoprotein-borne sterol substrate. Cholesterol insulin like growth factor 1 Sus scrofa
11 We conclude that FSH and IGF-I can augment absolute rates of progestin biosynthesis by granulosa cells by activating dual mechanisms: stimulation of functional cholesterol side chain cleavage activity and enhancement of effective cellular uptake and utilization of low-density lipoprotein-borne sterol substrate. Sterols insulin like growth factor 1 Sus scrofa