NDLI: Differential HSP90α expression in fish hepatocytes from polluted estuary during summer

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Differential HSP90α expression in fish hepatocytes from polluted estuary during summer

Content Provider	Springer Nature Link
Author	Padmini, Ekambaram Rani, Munuswamy Usha Geetha, Bose Vijaya
Copyright Year	2008
Abstract	The molecular chaperone, heat shock protein 90α (HSP90α), plays an important role in protein folding, degradation of denatured proteins and steroid activation. It is essential for the maintenance of cellular integrity and survival when induced in response to environmental, physical and chemical stresses. In the present investigation the effect of environmental stress on HSP90α expression was examined in grey mullet Mugil cephalus living in either a contaminated (Ennore) or uncontaminated (Kovalam) estuary over two seasons: Hepatocytes were isolated from grey mullet of both estuaries. Oxidative stress was determined along with HSP90α in these fish. Additionally, immunohistochemical changes were studied to confirm the HSP90α expression. Comparison of the results revealed enhanced hepatocyte oxidative stress and HSP90α expressions in fish from Ennore to a significant extent than fish from Kovalam. Also, the results showed significant seasonal variations with maximum expression observed during summer compared to the monsoon season. Overexpression of HSP90α in hepatocytes exposed to chronic environmental stress by pollutants may confer differential effects on cell survival by protecting against oxidative stress induced changes. The results also indicate that seasonal variations have significant effect on the HSP90α expression.
Starting Page	1118
Ending Page	1126
Page Count	9
File Format	PDF
ISSN	09199268
Journal	Fisheries Science
Volume Number	74
Issue Number	5
e-ISSN	14442906
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-01-01
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	antioxidants estuary hepatocytes HSP90α Mugil cephalus oxidative stress pollutants seasonal influences Fish & Wildlife Biology & Management Freshwater & Marine Ecology Food Science
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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