Characterization of stress response in human retinal epithelial cells.
Characterization of stress response in human retinal epithelial cells.
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DOI:
10.1111/j.1582-4934.2012.01652.x
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发表时间:
2013-01
影响因子:
5.3
通讯作者:
Torriglia A
中科院分区:
文献类型:
--
作者:
Giansanti V;Rodriguez GE;Savoldelli M;Gioia R;Forlino A;Mazzini G;Pennati M;Zaffaroni N;Scovassi AI;Torriglia A
The pathogenesis of age-related macular degeneration (AMD) involves demise of the retinal pigment epithelium and death of photoreceptors. In this article, we investigated the response of human adult retinal pigmented epithelial (ARPE-19) cells to 5-(N,N-hexamethylene)amiloride (HMA), an inhibitor of Na+/H+ exchangers. We observed that ARPE-19 cells treated with HMA are unable to activate ‘classical’ apoptosis but they succeed to activate autophagy. In the first 2 hrs of HMA exposure, autophagy is efficient in protecting cells from death. Thereafter, autophagy is impaired, as indicated by p62 accumulation, and this protective mechanism becomes the executioner of cell death. This switch in autophagy property as a function of time for a single stimulus is here shown for the first time. The activation of autophagy was observed, at a lesser extent, with etoposide, suggesting that this event might be a general response of ARPE cells to stress and the most important pathway involved in cell resistance to adverse conditions and toxic stimuli.
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影响因子:
3.7
作者:
Zhao Z;Chen Y;Wang J;Sternberg P;Freeman ML;Grossniklaus HE;Cai J
通讯作者:
Cai J
影响因子:
4.1
作者:
Muñoz-Gámez, JA;Martín-Oliva, D;Oliver, FJ
通讯作者:
Oliver, FJ
DOI:
10.1085/jgp.200810169
发表时间:
2009-06
期刊:
The Journal of general physiology
影响因子:
--
作者:
Adijanto J;Banzon T;Jalickee S;Wang NS;Miller SS
通讯作者:
Miller SS
影响因子:
7.2
作者:
Nilsson, C;Johansson, U;Öllinger, K
通讯作者:
Öllinger, K
DOI:
10.1111/j.1749-6632.2009.04701.x
发表时间:
2009-01-01
期刊:
NATURAL COMPOUNDS AND THEIR ROLE IN APOPTOTIC CELL SIGNALING PATHWAYS
影响因子:
--
作者:
Lepretre, Chloe;Sidoli, Giuseppina;Torriglia, Alicia
通讯作者:
Torriglia, Alicia