The Roles of p38 MAPK and ERK1/2 in Coplanar Polychlorinated Biphenyls-Induced Apoptosis of Human Extravillous Cytotrophoblast-Derived Transformed Cells.
Cell Physiol Biochem
; 36(6): 2418-32, 2015.
Article
en En
| MEDLINE
| ID: mdl-26279444
ABSTRACT
BACKGROUND/AIMS:
The purpose of this study was to investigate the relationships among exposure to coplanar polychlorinated biphenyls (Co-PCBs), the expression of gC1qR and the underlying intracellular apoptotic signaling pathways of human extravillous cytotrophoblast (EVCT)-derived transformed cells (HTR-8/SVneo and HPT-8).METHODS:
Apoptosis in HTR-8/SVneo and HPT-8 cells was assessed using flow cytometric analysis. gClqR expression was examined in the HTR-8/SVneo and HPT-8 cells using real-time qPCR and western blot analyses. The phosphorylations of p38 mitogen-activated protein kinase (p38 MAPK) (Thr180/Tyr182) and extracellular signal-regulated kinase (ERK) 1/2 (Thr202/Thr204) were detected using western blot analyses.RESULTS:
The HTR-8/SVneo and HPT-8 cells treated with Co-PCBs exhibited significantly increased gClqR expression, p38 MAPK/ERK activation and an up-regulation of cellular apoptosis. These effects were abrogated by the application of gC1qR small interfering RNA (siRNA). Furthermore, apoptosis in HTR-8/SVneo and HPT-8 cells was observed upon treatment with Co-PCBs, and these effects were reversed by the p38 MAPK pathway inhibitor SB203580 or the ERK1/2 pathway inhibitor PD098059.CONCLUSION:
These data support a mechanism wherein gC1qR plays a crucial p38 MAPK/ERK signaling pathway-dependent role in Co-PCBs-induced apoptosis of human EVCT-derived transformed cells.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Trofoblastos
/
Bifenilos Policlorados
/
Apoptosis
/
Proteínas Quinasas p38 Activadas por Mitógenos
Límite:
Humans
Idioma:
En
Revista:
Cell Physiol Biochem
Asunto de la revista:
BIOQUIMICA
/
FARMACOLOGIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
China