Role of endoplasmic reticulum stress in lipopolysaccharide-inhibited mouse granulosa cell estradiol production.
J Reprod Dev
; 65(5): 459-465, 2019 Oct 23.
Article
em En
| MEDLINE
| ID: mdl-31406023
ABSTRACT
The decrease in the level of estradiol (E2) in granulosa cells caused by lipopolysaccharide (LPS) is one of the major causes of infertility underlying postpartum uterine infections; the precise molecular mechanism of which remains elusive. This study investigated the role of endoplasmic reticulum (ER) stress in LPS-induced E2 decrease in mouse granulosa cells. Our results showed that LPS increased the pro-inflammatory cytokines [(interleukin (IL)-1ß, IL-6, IL-8, and tumor necrosis factor (TNF)-α)], activated ER stress marker protein expression [(glucose-regulated protein 78 (GRP78) and CCAAT/enhancer-binding protein homologous protein (CHOP)], and decreased cytochrome P450 family 19 subfamily A member 1 (Cyp19a1) expression and E2 production. Moreover, inhibition of ER stress by 4-phenylbutyrate (4-PBA) attenuated thapsigargin-(TG, ER stress agonist) or LPS-induced reduction of Cyp19a1 and E2, pro-inflammatory cytokines expression (IL-1ß, IL-6, IL-8, and TNF-α), and the expression of CHOP and GRP78. Additionally, inhibition of toll-like receptor 4 (TLR4) by resatorvid (TAK-242) reversed the inhibitory effects of LPS on Cyp19a1 expression and E2 production, activation of GRP78 and CHOP, and expression of IL-1ß, IL-6, IL-8, and TNF-α. In summary, our study suggests that ER stress is involved in LPS-inhibited E2 production in mouse granulosa cells.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estradiol
/
Estresse do Retículo Endoplasmático
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Células da Granulosa
Limite:
Animals
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article