alexa Hif1α Mediated Ho-1 Expression in Fish Adipocytes: Role of Hypoxia In Ennore Estuary
ISSN: 2155-9910

Journal of Marine Science: Research & Development
Open Access

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Research Article

Hif1α Mediated Ho-1 Expression in Fish Adipocytes: Role of Hypoxia In Ennore Estuary

Padmini Ekambaram1* and Parimala Parasuraman2

1Associate Professor in Biochemistry, Bharathi Women’s College, Affiliated to University of Madras, Chennai 600108, Tamil Nadu, India

2Research Scholar, Bharathi Women’s College, Affiliated to University of Madras, Chennai 600108, Tamil Nadu, India

*Corresponding Author:
Padmini E
Associate Professor in Biochemistry,
Bharathi Women’s College, Affiliated to University of Madras
Chennai 600108, Tamil Nadu, India
Tel: +91-044-26213748
Fax: +91-044-25280473
E-mail: ntrfbwc@gmail.com

Received date: May 18, 2017; Accepted date: May 23, 2017; Published date: May 29, 2017

Citation: Ekambaram P, Parasuraman P (2017) Hif1α Mediated Ho-1 Expression in Fish Adipocytes: Role of Hypoxia In Ennore Estuary. J Marine Sci Res Dev 7:230. doi: 10.4172/2155-9910.1000230

Copyright: © 2017 Ekambaram P, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Heme oxygenase-1 (HO-1), an inducible stress protein; is involved in the regulation of adipogenesis, cellular bioenergetics and cytoprotective mechanism against hypoxia induced oxidative stress. Polluted aquatic environment leads to large oxygen fluctuations which may cause alteration in fish adaptation mechanism by HIF1α regulation. Environmental pollutants have a high tendency to accumulate, persist and bio-concentrate in adipocytes due to its lipophilic nature which ultimately causes adipocytes hypoxia that in turn affects metabolic energy balance. CYP1A2 and HO-1 are the chief detoxifying and cytoprotective enzymes involved in the oxidative metabolism of a wide variety of pollutants and its mediated cytotoxic products. The key role of hypoxia and its mediated signaling protein changes in fish adipocytes due to low dissolved oxygen in Ennore estuary was demonstrated in our previous work. Therefore, we analyzed the effect of pollutants induced hypoxia by assessing CD, HNE, TAC, G3PDH, ATP, HIF1α, HO-1 and CYP1A2 in fish adipocytes of control/unpolluted site and test/polluted site. Increase in CD, HNE, HIF1α, HO-1 along with a decrease in TAC, G3PDH, ATP and CYP1A2 observed in test adipocytes. From the results achieved, it shows that induction of HO-1 by HIF1α is crucial in maintaining the cell integrity to secure adipocytes and its maturation in the fish collected from the hypoxic environment. This study also highlights the role of HIF1α and HO-1 in regulating the expression of CYP1A2 during pollutants induced hypoxic condition.

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