Title : Ordering of ceramide formation, caspase activation, and Bax/Bcl-2 expression during etoposide-induced apoptosis in C6 glioma cells.

Pub. Date : 2000 Sep

PMID : 11042671






4 Functional Relationships(s)
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1 Ordering of ceramide formation, caspase activation, and Bax/Bcl-2 expression during etoposide-induced apoptosis in C6 glioma cells. Etoposide BCL2 associated X, apoptosis regulator Homo sapiens
2 In addition, exposure of cells to etoposide resulted in decreased expression of Bcl-2 with reciprocal increase in Bax protein. Etoposide BCL2 associated X, apoptosis regulator Homo sapiens
3 Reduced glutathione or N-acetylcysteine, which could reduce ceramide formation by inhibiting sphingomyelinase activity, prevented C6 cells from etoposide-induced apoptosis through blockage of caspase-3 activation and change of the Bax/Bcl-2 ratio. Etoposide BCL2 associated X, apoptosis regulator Homo sapiens
4 Taken together, these results suggest that ceramide may function as a mediator of etoposide-induced apoptosis of C6 glioma cells, which induces increase in the Bax/Bcl-2 ratio followed by release of cytochrome c leading to caspases-9 and -3 activation. Etoposide BCL2 associated X, apoptosis regulator Homo sapiens