SLC7A11 expression level dictates differential responses to oxidative stress in cancer cells
Descripción general
Resumen del artículo
This study reports that high overexpression of the cystine transporter SLC7A11 increases cancer cell death under high H2O2 treatment, contrary to its protective role in moderate oxidative stress. This is due to excessive cystine uptake leading to intracellular disulfide buildup, NADPH depletion, and disulfidptosis, revealing a context-dependent role for SLC7A11 in cancer biology.
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Scientists found that a special doorway on cancer cells, usually protective, can actually make them die if there's too much of it and too much "bad air" (stress). It's like having too much of a good thing that then makes the cells get sick and pop!
Posibles conflictos de intereses
K.O. and L.K. are former full-time employees of Kadmon Corporation. M.V.P. is a full-time employee of Kadmon Corporation, a Sanofi Company.
Limitaciones identificadas
Explicación de la calificación
This study provides strong evidence for a novel and surprising finding that high expression of SLC7A11, while protective against moderate oxidative stress, can become detrimental under high oxidative stress conditions. The study uses a variety of experimental approaches and provides mechanistic insights into the observed phenomenon. However, the reliance on in vitro and xenograft models, as well as the focus on H2O2-induced oxidative stress, are limitations that need to be acknowledged.
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