Details

Autor(en) / Beteiligte

• Kashyap, Mahendra Pratap
• Singh, Abhishek Kumar
• Kumar, Vivek
• Tripathi, Vinay Kumar
• Srivastava, Ritesh Kumar
• Agrawal, Megha
• Khanna, Vinay Kumar
• Yadav, Sanjay
• Jain, Swatantra Kumar
• Pant, Aditya Bhushan
• Vij, Neeraj

Titel

Monocrotophos induced apoptosis in PC12 cells: role of xenobiotic metabolizing cytochrome P450s

Ist Teil von

• PloS one, 2011-03, Vol.6 (3), p.e17757

Ort / Verlag

United States: Public Library of Science

Erscheinungsjahr

2011

Quelle

MEDLINE

Beschreibungen/Notizen

• Monocrotophos (MCP) is a widely used organophosphate (OP) pesticide. We studied apoptotic changes and their correlation with expression of selected cytochrome P450s (CYPs) in PC12 cells exposed to MCP. A significant induction in reactive oxygen species (ROS) and decrease in glutathione (GSH) levels were observed in cells exposed to MCP. Following the exposure of PC12 cells to MCP (10(-5) M), the levels of protein and mRNA expressions of caspase-3/9, Bax, Bcl(2), P(53), P(21), GSTP1-1 were significantly upregulated, whereas the levels of Bclw, Mcl1 were downregulated. A significant induction in the expression of CYP1A1/1A2, 2B1/2B2, 2E1 was also observed in PC12 cells exposed to MCP (10(-5) M), whereas induction of CYPs was insignificant in cells exposed to 10(-6) M concentration of MCP. We believe that this is the first report showing altered expressions of selected CYPs in MCP-induced apoptosis in PC12 cells. These apoptotic changes were mitochondria mediated and regulated by caspase cascade. Our data confirm the involvement of specific CYPs in MCP-induced apoptosis in PC12 cells and also identifies possible cellular and molecular mechanisms of organophosphate pesticide-induced apoptosis in neuronal cells.