Neuroprotective effects of tetramethylpyrazine on hydrogen peroxide-induced apoptosis in PC12 cells.

Abstract:

:In the present study, we investigated the effects of tetramethylpyrazine (TMP) on hydrogen peroxide (H2O2)-induced apoptosis in PC12 cells. The apoptosis in H2O2-induced PC12 cells was accompanied by a decrease in Bcl-2/Bax protein ratio, release of cytochrome c to cytosol and the activation of caspase-3. TMP not only suppressed the down-regulation of Bcl-2, up-regulation of Bax and the release of mitochondrial cytochrome c to cytosol, but also attenuated caspase-3 activation and eventually protected against H2O2-induced apoptosis. These results indicated that TMP blocked H2O2-induced apoptosis by the regulation of Bcl-2 family members, suppression of cytochrome c release, and caspase cascade activation in PC12 cells.

journal_name

Cell Biol Int

authors

Cheng XR,Zhang L,Hu JJ,Sun L,Du GH

doi

10.1016/j.cellbi.2006.10.001

subject

Has Abstract

pub_date

2007-05-01 00:00:00

pages

438-43

issue

5

eissn

1065-6995

issn

1095-8355

pii

S1065-6995(06)00238-1

journal_volume

31

pub_type

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