HIV-Tat-mediated Bcl-XL delivery protects retinal ganglion cells during experimental autoimmune optic neuritis.

Abstract:

:In multiple sclerosis (MS), post-mortem studies of human brain tissue as well as data from animal models have shown that apoptosis of neurons occurs to a significant extent during this disease. As neurodegeneration in MS correlates with permanent neurological deficits in patients, understanding the mechanisms would be an important pre-condition for designing appropriate neuroprotective therapies. Myelin oligodendrocyte glycoprotein-induced experimental autoimmune encephalomyelitis often affects the optic nerve and leads to consecutive apoptosis of retinal ganglion cells (RGCs), the neurons that form its axons. In this study, we fused Bcl-XL to the protein transduction domain of the HIV-transactivator of transcription. Thereby, this anti-apoptotic member of the Bcl-2 family was delivered into RGCs of rats with electrophysiologically diagnosed optic neuritis. Transduction of Bcl-XL in our study led to significant rescue of RGCs indicating the relevance of this pathway for neuronal survival under autoimmune inflammatory conditions.

journal_name

Neurobiol Dis

journal_title

Neurobiology of disease

authors

Diem R,Taheri N,Dietz GP,Kuhnert A,Maier K,Sättler MB,Gadjanski I,Merkler D,Bähr M

doi

10.1016/j.nbd.2005.03.003

keywords:

subject

Has Abstract

pub_date

2005-11-01 00:00:00

pages

218-26

issue

2

eissn

0969-9961

issn

1095-953X

pii

S0969-9961(05)00074-4

journal_volume

20

pub_type

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