Proteolytic activation of angiomotin by DDI2 promotes angiogenesis.
AMOT
DDI2
NF2
angiogenesis
protease
Journal
The EMBO journal
ISSN: 1460-2075
Titre abrégé: EMBO J
Pays: England
ID NLM: 8208664
Informations de publication
Date de publication:
01 08 2023
01 08 2023
Historique:
revised:
23
05
2023
received:
24
10
2022
accepted:
06
06
2023
pmc-release:
23
06
2024
medline:
3
8
2023
pubmed:
23
6
2023
entrez:
23
6
2023
Statut:
ppublish
Résumé
The scaffolding protein angiomotin (AMOT) is indispensable for vertebrate embryonic angiogenesis. Here, we report that AMOT undergoes cleavage in the presence of lysophosphatidic acid (LPA), a lipid growth factor also involved in angiogenesis. AMOT cleavage is mediated by aspartic protease DNA damage-inducible 1 homolog 2 (DDI2), and the process is tightly regulated by a signaling axis including neurofibromin 2 (NF2), tankyrase 1/2 (TNKS1/2), and RING finger protein 146 (RNF146), which induce AMOT membrane localization, poly ADP ribosylation, and ubiquitination, respectively. In both zebrafish and mice, the genetic inactivation of AMOT cleavage regulators leads to defective angiogenesis, and the phenotype is rescued by the overexpression of AMOT-CT, a C-terminal AMOT cleavage product. In either physiological or pathological angiogenesis, AMOT-CT is required for vascular expansion, whereas uncleavable AMOT represses this process. Thus, our work uncovers a signaling pathway that regulates angiogenesis by modulating a cleavage-dependent activation of AMOT.
Identifiants
pubmed: 37350545
doi: 10.15252/embj.2022112900
pmc: PMC10390880
doi:
Substances chimiques
Angiomotins
0
Microfilament Proteins
0
Peptide Hydrolases
EC 3.4.-
Intercellular Signaling Peptides and Proteins
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e112900Informations de copyright
© 2023 The Authors.
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