PUBLICATION
Proteolytic activation of angiomotin by DDI2 promotes angiogenesis
- Authors
- Wang, Y., Zhu, Y., Wang, Y., Chang, Y., Geng, F., Ma, M., Gu, Y., Yu, A., Zhu, R., Yu, P., Sha, Z., Qi, S., Li, J., Zhao, W., Pan, W., Zhang, R., Yu, F.X.
- ID
- ZDB-PUB-230624-35
- Date
- 2023
- Source
- The EMBO journal 42(15): e112900 (Journal)
- Registered Authors
- Pan, Weijun, Zhang, Ruilin
- Keywords
- AMOT, DDI2, NF2, angiogenesis, protease
- MeSH Terms
-
- Angiomotins*
- Animals
- Intercellular Signaling Peptides and Proteins/genetics
- Mice
- Microfilament Proteins/metabolism
- Peptide Hydrolases
- Zebrafish*/metabolism
- PubMed
- 37350545 Full text @ EMBO J.
Citation
Wang, Y., Zhu, Y., Wang, Y., Chang, Y., Geng, F., Ma, M., Gu, Y., Yu, A., Zhu, R., Yu, P., Sha, Z., Qi, S., Li, J., Zhao, W., Pan, W., Zhang, R., Yu, F.X. (2023) Proteolytic activation of angiomotin by DDI2 promotes angiogenesis. The EMBO journal. 42(15):e112900.
Abstract
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.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping