Journal
MITOCHONDRION
Volume 12, Issue 1, Pages 149-155Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mito.2011.06.010
Keywords
Chronic mitochondrial stress; Mitochondrial organization; NARP; Selenite
Categories
Funding
- Polish Ministry of Science and Higher Education [1189/COS/2007/01]
- European Union [FA0602]
Ask authors/readers for more resources
Mitochondrial chronic stress that originates from defective mitochondria is implicated in a growing list of human diseases. To enhance understanding of pathophysiology of chronic mitochondrial dysfunction we investigated human osteosarcoma cells with 2 types of chronic stress: corresponding to the mutation in ATP synthase subunit 6 encoded by mtDNA (NARP syndrome-mild stress) and to a total lack of mtDNA (Rho0 cells-heavy stress). We previously found that selenium influenced mitochondrial stress response and lowered ROS production. Therefore, in this study effect of selenite on other mitochondrial parameters was investigated. We showed that presence of selenium improved survival of starved cells, modified organization of mitochondrial network in NARP cybrids and decreased cytosolic calcium level in NARP and Rho0 cells. Selenium did not affect mitochondrial membrane potential, ATP level, activity of ATP synthase and activity of complex II of the respiratory chain. (C) 2011 Elsevier B.V. and Mitochondria Research Society. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available