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J Mol Histol. 2013 Oct;44(5):497-505. doi: 10.1007/s10735-013-9506-7. Epub 2013 Jun 15.

Up-regulated expression of Bnip3L after intracerebral hemorrhage in adult rats.

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  • 1Department of Neurology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China.

Abstract

Bnip3L, also known as NIX, is a homolog of the E1B 19K/Bcl-2 binding and pro-apoptotic protein Bnip3 which can bind to Bcl-2 to elaborate that effect. In tumor cells, Bnip3L played a role in tumor growth inhibition, but some studies argued hypoxia-induced autophagy via Bnip3L was a survival mechanism that promoted tumor progression. In heart muscle, it related to decreased myocardial function. However, its function in intracerebral hemorrhage (ICH) is still not clear. In this frame, we found the Bnip3L expression increased in the perihematomal region in adult rats after performed ICH. Double immunofluorenscence staining manifested that Bnip3L co-located with neurons, not astrocytes or oligodendrocytes. Furthermore, we detected that neuronal apoptosis marker active caspase-3 had colocalizations with Bnip3L. In addition, colocalizations and co-immunoprecipitation between Bnip3L and Bcl-2, consistent with previous study, were also found. All our findings suggested that Bnip3L might be involved in the pathophysiology of ICH.

PMID:
23771482
[PubMed - indexed for MEDLINE]
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