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Cells 2019, 8(1), 71; https://doi.org/10.3390/cells8010071

Prohibitins: A Critical Role in Mitochondrial Functions and Implication in Diseases

1
Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy
2
Water Research Institute (IRSA), National Research Council (CNR), Viale F. De Blasio, 5, 70132 Bari, Italy
3
Laboratory of Nephrology, Department of Rare Diseases, Bambino Gesù Children’s Hospital, Viale di S. Paolo, 15, 00149 Rome, Italy
4
Institute of Biomembrane, Bioenergetics and Molecular Biotechnology (IBIOM), National Research Council (CNR), 70126 Bari, Italy
*
Authors to whom correspondence should be addressed.
Received: 7 December 2018 / Revised: 10 January 2019 / Accepted: 15 January 2019 / Published: 18 January 2019
(This article belongs to the Section Cell Signaling and Regulated Cell Death)
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Abstract

Prohibitin 1 (PHB1) and prohibitin 2 (PHB2) are proteins that are ubiquitously expressed, and are present in the nucleus, cytosol, and mitochondria. Depending on the cellular localization, PHB1 and PHB2 have distinctive functions, but more evidence suggests a critical role within mitochondria. In fact, PHB proteins are highly expressed in cells that heavily depend on mitochondrial function. In mitochondria, these two proteins assemble at the inner membrane to form a supra-macromolecular structure, which works as a scaffold for proteins and lipids regulating mitochondrial metabolism, including bioenergetics, biogenesis, and dynamics in order to determine the cell fate, death, or life. PHB alterations have been found in aging and cancer, as well as neurodegenerative, cardiac, and kidney diseases, in which significant mitochondrial impairments have been observed. The molecular mechanisms by which prohibitins regulate mitochondrial function and their role in pathology are reviewed and discussed herein. View Full-Text
Keywords: mitochondria; prohibitins; apoptosis; oxidative phosphorylation; mitochondrial dynamics mitochondria; prohibitins; apoptosis; oxidative phosphorylation; mitochondrial dynamics
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Signorile, A.; Sgaramella, G.; Bellomo, F.; De Rasmo, D. Prohibitins: A Critical Role in Mitochondrial Functions and Implication in Diseases. Cells 2019, 8, 71.

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