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Sirt4 : A Multifaceted Enzyme at the Crossroads of Mitochondrial Metabolism and Cancer

Titelangaben

Tomaselli, Daniela ; Steegborn, Clemens ; Mai, Antonello ; Rotili, Dante:
Sirt4 : A Multifaceted Enzyme at the Crossroads of Mitochondrial Metabolism and Cancer.
In: Frontiers in Oncology. Bd. 10 (2020) . - 474.
ISSN 2234-943X
DOI: https://doi.org/10.3389/fonc.2020.00474

Abstract

Sirtuins are NAD+-dependent deacylases that play crucial roles in the regulation of cellular metabolism, and as a result, are implicated in several diseases. The mitochondrial sirtuin Sirt4, for a long time considered as mainly a mono-ADP-ribosyltransferase, recently has shown a robust deacylase activity in addition to the already accepted substrate-dependent lipoamidase and deacetylase properties. Through these and likely other enzymatic and non-enzymatic activities, Sirt4 closely controls various metabolic events, and its dysregulation is linked to various aging-related disorders, including type 2 diabetes, cardiac hypertrophy, non-alcoholic fatty liver disease, obesity, and cancer. For its capability to inhibit glutamine catabolism and for the modulation of genome stability in cancer cells in response to different DNA-damaging conditions, Sirt4 is proposed as either a mitochondrial tumor suppressor or a tumor-promoting protein in a context-dependent manner. In addition to what is already known about the roles of Sirt4 in different biological settings, further studies are certainly still needed in order to validate this enzyme as a new potential target for various aging diseases.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Cancer; Metabolism; Mitochondria; Protein deacylation; Sirtuins
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Biochemie > Lehrstuhl Biochemie I - Proteinbiochemie der Signaltransduktion - Univ.-Prof. Dr. Clemens Steegborn
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Biochemie
Titel an der UBT entstanden: Nein
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie
Eingestellt am: 07 Sep 2020 08:10
Letzte Änderung: 14 Jun 2023 12:49
URI: https://eref.uni-bayreuth.de/id/eprint/56817