Mitochondrial anomalies are associated with the induction of intrinsic cell death proteins-Bcl(2), Bax, cytochrome-c and p53 in mice brain during experimental fatal murine cerebral malaria.

Abstract:

:The levels of apoptosis associated proteins Bcl(2), Bax, cytochrome-c and p53 was investigated in mice cerebral cortex and cerebellum, using an experimental model of fatal murine cerebral malaria (FMCM). Owing to the activation of events central to mitochondrial dysfunctions, we monitored the structural integrity of mitochondria in cerebral malaria (CM) infected brain tissue by transmission EM (TEM) studies. Western blot analysis revealed the induction of Bcl(2), Bax, cytochrome-c and p53 in both cortex and cerebellum. The TEM studies revealed extensive vacuolation and swelling of mitochondria in infected brain suggestive of a late stage of degeneration. Our results underscore the activation of an intrinsic cell death pathway as evinced by the induction of mitochondria associated apoptotic proteins Bcl(2), Bax and cytochrome-c and further envisages the induction of p53 as a possible continuation of the post receptor signaling events associated with tumor necrosis factor induction following inflammatory responses during CM. These findings may be crucial to mitochondrial dysfunctions underlying the pathology of FMCM.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Kumar KA,Babu PP

doi

10.1016/s0304-3940(02)00470-6

keywords:

subject

Has Abstract

pub_date

2002-09-06 00:00:00

pages

319-23

issue

3

eissn

0304-3940

issn

1872-7972

pii

S0304394002004706

journal_volume

329

pub_type

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