Activation of protein phosphatase 2A is responsible for increased content and inactivation of respiratory chain complex i induced by all-trans retinoic acid in human keratinocytes

F Papa, N Sardaro, R Lippolis, D Panelli, S Scacco

Article ID: 4151
Vol 30, Issue 2, 2016
DOI: https://doi.org/10.54517/jbrha4151
Received: 6 June 2022; Accepted: 6 June 2022; Available online: 6 June 2022; Issue release: 6 June 2022

Abstract

This study presents the effect of all-trans retinoic acid (ATRA) on cell growth and respiratory chain complex I in human keratinocyte cultures. Keratinocyte treatment results in increased level of GRIM-19 and other subunits of complex I, in particular of their carbonylated forms, associated with inhibition of its enzymatic activity. The results show that in keratinocytes ATRA-promoted phosphatase activity controls the proteostasis and activity of complex I.


Keywords

all-trans retinoic acid;human keratinocytes;GRIM-19;mitochondria;cell growth;NADH ubiquinone oxidoreductase


References

Supporting Agencies



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