Post-translational modifications by SIRT3 de-2-hydroxyisobutyrylase activity regulate glycolysis and enable nephrogenesis

© 2021. The Author(s)..

Abnormal kidney development leads to lower nephron number, predisposing to renal diseases in adulthood. In embryonic kidneys, nephron endowment is dictated by the availability of nephron progenitors, whose self-renewal and differentiation require a relatively repressed chromatin state. More recently, NAD+-dependent deacetylase sirtuins (SIRTs) have emerged as possible regulators that link epigenetic processes to the metabolism. Here, we discovered a novel role for the NAD+-dependent deacylase SIRT3 in kidney development. In the embryonic kidney, SIRT3 was highly expressed only as a short isoform, with nuclear and extra-nuclear localisation. The nuclear SIRT3 did not act as deacetylase but exerted de-2-hydroxyisobutyrylase activity on lysine residues of histone proteins. Extra-nuclear SIRT3 regulated lysine 2-hydroxyisobutyrylation (Khib) levels of phosphofructokinase (PFK) and Sirt3 deficiency increased PFK Khib levels, inducing a glycolysis boost. This altered Khib landscape in Sirt3-/- metanephroi was associated with decreased nephron progenitors, impaired nephrogenesis and a reduced number of nephrons. These data describe an unprecedented role of SIRT3 in controlling early renal development through the regulation of epigenetics and metabolic processes.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Scientific reports - 11(2021), 1 vom: 08. Dez., Seite 23580

Sprache:

Englisch

Beteiligte Personen:

Perico, Luca [VerfasserIn]
Morigi, Marina [VerfasserIn]
Pezzotta, Anna [VerfasserIn]
Corna, Daniela [VerfasserIn]
Brizi, Valerio [VerfasserIn]
Conti, Sara [VerfasserIn]
Zanchi, Cristina [VerfasserIn]
Sangalli, Fabio [VerfasserIn]
Trionfini, Piera [VerfasserIn]
Buttò, Sara [VerfasserIn]
Xinaris, Christodoulos [VerfasserIn]
Tomasoni, Susanna [VerfasserIn]
Zoja, Carlamaria [VerfasserIn]
Remuzzi, Giuseppe [VerfasserIn]
Benigni, Ariela [VerfasserIn]
Imberti, Barbara [VerfasserIn]

Links:

Volltext

Themen:

0U46U6E8UK
Chromatin
EC 2.7.1 -
EC 3.5.1.-
Journal Article
K3Z4F929H6
Lysine
NAD
Phosphofructokinases
Sirt3 protein, mouse
Sirtuin 3

Anmerkungen:

Date Completed 27.01.2022

Date Revised 27.01.2022

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-021-03039-8

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM334169259