NRDR inhibits estradiol synthesis and is associated with changes in reproductive traits in pigs.
Mol Reprod Dev
; 86(1): 63-74, 2019 01.
Article
in En
| MEDLINE
| ID: mdl-30372551
ABSTRACT
Cumulus cells secreting steroid hormones have important functions in oocyte development. Several members of the short-chain dehydrogenase/reductase (SDR) family are critical to the biosynthesis of steroid hormones. NADPH-dependent retinol dehydrogenase/reductase ( NRDR), a member of the SDR superfamily, is overexpressed in pig breeds that also show high levels of androstenone. However, the potential functions and regulatory mechanisms of NRDR in pig ovaries have not been reported to date. The present study demonstrated that NRDR is highly expressed in pig ovaries and is specifically located in cumulus granulosa cells. Functional studies showed that NRDR inhibition increased estradiol synthesis. Both pregnant mare serum gonadotropin and human chorionic gonadotropin downregulated the expression of NRDR in pig cumulus granulosa cells. When the relationship between reproductive traits and single-nucleotide polymorphisms (SNPs) of the NRDR gene was examined, we found that two SNPs affected reproductive traits. SNP rs701332503 was significantly associated with a decrease in the total number of piglets born during multiparity, and rs326982309 was significantly associated with an increase in the average birth weight during primiparity. Thus, NRDR has an important role in steroid hormone biosynthesis in cumulus granulosa cells, and NRDR SNPs are associated with changes in porcine reproduction traits.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ovary
/
Parity
/
Quantitative Trait, Heritable
/
Polymorphism, Single Nucleotide
/
Alcohol Oxidoreductases
/
Estradiol
Type of study:
Risk_factors_studies
Limits:
Animals
/
Female
/
Humans
/
Pregnancy
Language:
En
Journal:
Mol Reprod Dev
Journal subject:
BIOLOGIA MOLECULAR
/
MEDICINA REPRODUTIVA
Year:
2019
Type:
Article
Affiliation country:
China