creators_name: Gupta, Arpit
creators_name: Puri, Anuradhika
creators_name: Singh, Prashant
creators_name: Sonam, Surabhi
creators_name: Pandey, Richa
creators_name: Sharma, Deepak
type: article
datestamp: 2019-03-19 11:32:35
lastmod: 2019-03-19 11:32:35
metadata_visibility: show
title: The yeast stress inducible Ssa Hsp70 reduces α-synuclein toxicity by promoting its degradation through autophagy.
ispublished: pub
subjects: QR
note: Open Access
abstract: The mechanism underlying the role of Hsp70s in toxicity associated with intracellular accumulation of toxic protein inclusions is under intense investigation. In current study, we examined the roles of all different isoforms of yeast cytosolic Ssa Hsp70 on α-synuclein mediated cellular toxicity. The study showed that yeast cells expressing stress-inducible Ssa3 or Ssa4 as sole Ssa Hsp70 isoforms, reduced α-synuclein toxicity better than those expressing a constitutive counterpart. The protective effect of stress-inducible Ssa Hsp70s was not α-syn specific, but more general to other inclusion forming proteins such as polyQ. We show that the protective effect is not by induction of a general stress response in Ssa3 cells rather by promoting α-synuclein degradation through autophagy. The present study revealed that effect of Hsp70s was isoform dependent, and that autophagy protects Ssa3 cells from the deleterious effects of toxic protein inclusions.
date: 2018-10-30
date_type: published
publication: PLoS genetics
volume: 14
number: 10
publisher: Public Library of Science
pagerange: e1007751
refereed: TRUE
issn: 1553-7404
official_url: https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1007751
citation:   Gupta, Arpit and Puri, Anuradhika and Singh, Prashant and Sonam, Surabhi and Pandey, Richa and Sharma, Deepak  (2018) The yeast stress inducible Ssa Hsp70 reduces α-synuclein toxicity by promoting its degradation through autophagy.  PLoS genetics, 14 (10).  e1007751.  ISSN 1553-7404