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In vitro stress treatments change the pattern of MICA/B expression. A. Induction of TIA-1+ granules in Caco-2 cells.

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posted on 13.09.2013 by Yessica L. Allegretti, Constanza Bondar, Luciana Guzman, Eduardo Cueto Rua, Nestor Chopita, Mercedes Fuertes, Norberto W. Zwirner, Fernando G. Chirdo

Confocal microscopic analysis of Caco-2 cells treated during different periods of time with thapsigargin, sodium arsenite or fever-range temperature showing redistribution of TIA-1 (white) into stress granules. Nuclei (blue). (scan zoom 0,7, magnification 100×). B.- Redistribution of MICA/B in treated Caco-2 cells. Confocal microscopic analysis of Caco-2 cells treated during different periods of time with thapsigargin, sodium arsenite or fever-range temperature showing redistribution of MICA/B (red) in cytoplasmic aggregates. Nuclei (blue). (scan zoom 0,7, magnification 100×). C.- Distribution of MICA/B and TIA-1 in Caco-2 treated cells. Confocal microscopy of Caco-2 cells treated with thapsigargin (ER stress) or sodium arsenite (oxidative stress) for 1 hour, showing MICA/B (red) and TIA-1 (white) (magnification 100×). In both cases, MICA/B+ structures were not associated to stress TIA-1+ granules. (scan zoom 0,7, magnification 100×).

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