Activation of the RhoA/ROCK pathway contributes to renal fibrosis in offspring rats induced by maternal exposure to di-n-butyl phthalate.
Toxicology
; 443: 152573, 2020 10.
Article
em En
| MEDLINE
| ID: mdl-32860865
ABSTRACT
Maternal exposure to di-n-butyl phthalate (DBP) can cause renal fibrosis in adult offspring rats. However, its underlying mechanisms have not yet been fully understood. In this study, we investigated whether the RhoA/ROCK pathway plays an important role in offspring renal fibrosis induced by maternal exposure to DBP. Our results showed that maternal exposure to DBP (850 mg/kg/day orally feeding during gestational days 14-18) activated the RhoA/ROCK pathway and induced epithelial-mesenchymal transition (EMT) in kidneys of offspring rats. Compared with the control group treated with normal saline, EMT in the kidneys of offspring rats undergoing 8 weeks of ROCK inhibitor Y-27632 treatment (at a dose of 30 mg/kg) was significantly inhibited, the degree of renal fibrosis was significantly reduced, and the renal function was significantly improved. DBP (10 µmol/L) activated the RhoA/ROCK pathway and induced EMT in NRK-52E cells in vitro. Both 5 µM and 10 µM Y-27632, a ROCK inhibitor, significantly reduced the EMT of NRK-52E cells. Taken together, our findings suggest that the RhoA/ROCK pathway plays an important role in the pathogenesis of renal fibrosis in offspring rats induced by maternal exposure to DBP via promoting EMT of renal tubular epithelial cells.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Proteínas rho de Ligação ao GTP
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Dibutilftalato
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Quinases Associadas a rho
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Rim
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Nefropatias
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Troca Materno-Fetal
Limite:
Animals
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Pregnancy
Idioma:
En
Revista:
Toxicology
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
China