当前位置： SCI文献检索 > MOLECULAR AND CELLULAR BIOCHEMISTRY期刊下所有文献 > Oxidative stress-mediated cytotoxicity of Endosulfan is causally linked to the inhibition of NADH dehydrogenase and Na+, K+-ATPase in Ehrlich ascites tumor cells.

Oxidative stress-mediated cytotoxicity of Endosulfan is causally linked to the inhibition of NADH dehydrogenase and Na+, K+-ATPase in Ehrlich ascites tumor cells.

Abstract：

:Oxidative stress in cells caused by excessive production of reactive oxygen species (ROS) and decreased antioxidant defense is implicated in the cytotoxicity of xenobiotics including drugs and environmental chemicals. Endosulfan, a highly toxic organochlorine insecticide, causes cytotoxic cell death by inducing oxidative stress. We have investigated the biochemical basis of induction of oxidative stress, involving the role of NADH dehydrogenase and the possible role of Na+, K+-ATPase in endosulfan cytotoxicity and, whether the cytotoxicity could be attenuated by targeting ROS induction using the natural flavonoid antioxidant, quercetin, in Ehrlich ascites tumor (EAT) cells. Exposure of cells to endosulfan caused cytotoxic cell death (necrosis) which was associated with induction of ROS, lipid peroxidation as well as a reduction in glutathione levels, concomitant with loss of NADH dehydrogenase and Na+, K+-ATPase activity in a dose-dependent manner, indicating that oxidative stress and perturbation of membrane function are the major causes of endosulfan cytotoxicity. Our results showed that quercetin, protected against endosulfan-induced cytotoxicity and significantly abrogated oxidative stress, and ameliorated the inhibition of NADH dehydrogenase and Na+, K+-ATPase activity in EAT cells. Our study presents evidence that NADH dehydrogenase inhibition plays an important role in oxidative stress-mediated cytotoxicity, and perturbed membrane function as evident from inhibition of sodium-potassium pump is involved in cytotoxic cell death.

journal_name

Mol Cell Biochem

journal_title

Molecular and cellular biochemistry

authors

Murali M,Carvalho MS,Shivanandappa T

doi

10.1007/s11010-020-03711-z

subject

Has Abstract

pub_date

2020-05-01 00:00:00

pages

59-68

issue

1-2

eissn

0300-8177

issn

1573-4919

pii

10.1007/s11010-020-03711-z

journal_volume

468

pub_type

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