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Stage-specific expression and effect of bone morphogenetic protein 2 on bovine granulosa cell estradiol production: regulation by cocaine and amphetamine regulated transcript

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Title Stage-specific expression and effect of bone morphogenetic protein 2 on bovine granulosa cell estradiol production: regulation by cocaine and amphetamine regulated transcript
Not Available
 
Creator Selvaraju S
Folger JK
Gupta PS
Ireland JJ
Smith GW
 
Subject Ovary Bovine Granulosa cell BMP2 CART
 
Description Not Available
Members of the bone morphogenetic protein (BMP) family regulate follicular development and granulosa cell function. However, changes in expression of BMP2 and its receptors during follicular waves in cattle and ability of BMP2 to modulate bovine granulosa cell estradiol production are not well understood. The objectives of this study were to determine temporal regulation of mRNA for BMP2 and its type I and II receptors (BMPR1A and BMPR2) in bovine follicles collected at specific stages of a follicular wave (predeviation, early dominance, mid dominance, preovulatory), ability of BMP2 to modulate bovine granulosa cell steroidogenesis, and whether effects of BMP2 on granulosa cell estradiol production are influenced by cotreatment with cocaine- and amphetamine-regulated transcript (CART), an intrafollicular regulatory peptide shown to inhibit estradiol production in response to other trophic hormones (FSH and IGF1). Relative abundance of mRNAs for Bmp2 and Bmpr2 was elevated at the mid dominance stage relative to earlier stages of the follicular wave and further increased at the preovulatory stage. Abundance of mRNA for Bmpr1a was lowest at early dominance stage and highest at preovulatory stage relative to other stages of the follicular wave examined. Treatment of bovine granulosa cells in vitro with BMP2 increased estradiol but decreased progesterone concentrations. Co-incubation with CART reduced the BMP2-stimulated increase in granulosa cell estradiol production. Results suggest that BMP2 may play a regulatory role in development of bovine follicles to the preovulatory stage and that CART can inhibit granulosa cell estradiol production in response to multiple hormones/growth factors, including BMP2.
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Date 2024-05-31T11:46:55Z
2024-05-31T11:46:55Z
2013-01-01
 
Type Journal
 
Identifier Selvaraju S, Folger JK, Gupta PS, Ireland JJ and Smith GW. 2013. Stage-specific expression and effect of bone morphogenetic protein 2 on bovine granulosa cell estradiol production: regulation by cocaine and amphetamine regulated transcript. Domestic Animal Endocrinology, 44:115-20.
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http://krishi.icar.gov.in/jspui/handle/123456789/82942
 
Language English
 
Relation Not Available;
 
Publisher Esevier