Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Journal of Neurochem...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Journal of Neurochemistry
Article . 2015 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
versions View all 2 versions
addClaim

Chandipura virus perturbs cholesterol homeostasis leading to neuronal apoptosis

Authors: Sourish, Ghosh; Sriparna, Mukherjee; Anirban, Basu;

Chandipura virus perturbs cholesterol homeostasis leading to neuronal apoptosis

Abstract

AbstractChandipura virus (CHPV; genus Vesiculovirus, family Rhabdoviridae) induces neuronal death through the Fas‐mediated extrinsic apoptosis pathway. What propels this apoptosis remains unclear, although oxysterols have been reported to be key players in neurodegeneration. In our study of CHPV‐infected brain samples, we observed over‐expression of genes such as apolipoprotein E, Cyp46a1, Srebf‐1 and Nsdhl. This backs up the hypothesis that CHPV replication demands cholesterol that is supplied by apolipoprotein E through low density lipid receptors, lipid metabolism being pivotal for viral replication. We were able to illustrate this with over‐expression of low density lipid receptors in CHPV‐infected neurons. An upsurge of cholesterol concentration has been observed in neurons, triggering the expression of Cyp46a1 enzyme and culminating into the conversion of cholesterol to 24(S)‐hydroxycholesterol. Increased 24(S)‐hydroxycholesterol concentration is toxic to neurons, propelling neuronal apoptosis through the Fas‐mediated extrinsic apoptosis pathway. For the first time, perturbation of cholesterol homeostasis in brain is shown to be utilized by the viruses for both maturation and the release of its matured virions outside the cells for continuous neuropathogenesis. image Chandipura virus (CHPV) increases cholesterol import through low density lipid (LDL) receptor in neurons. Cholesterol in neurons are utilized to form the CHPV envelope. Excessive accumulation of cholesterol gets converted to 24(S)‐hydroxycholesterol (24(S)‐OHC) by cholesterol 24‐hydroxylase enzyme (encoded by Cyp46a1 gene) that induces neuronal death through apoptosis. Therapeutics aimed against cholesterol homeostasis perturbation may be an effective anti‐viral strategy.

Related Organizations
Keywords

Neurons, Mice, Inbred BALB C, Primary Cell Culture, Apoptosis, Vesiculovirus, Hydroxycholesterols, Mice, Apolipoproteins E, Cholesterol, Receptors, LDL, Gene Knockdown Techniques, Rhabdoviridae Infections, Steroid Hydroxylases, Cholesterol 24-Hydroxylase, Animals, Homeostasis

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    12
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
12
Top 10%
Average
Top 10%
bronze