ArticleLife science alliance2022
α-Actinin-4 recruits Shp2 into focal adhesions to potentiate ROCK2 activation in podocytes.
Article in Life science alliance, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- EphA3/EFNA3 Reverse Signalling Promotes Epithelial-to-Mesenchymal Transition via ERK Pathway to Facilitate Colorectal Cancer Metastasis.Digestive diseases and sciences · 2025Article
- Dynamic regulation of integrin β1 phosphorylation supports invasion of breast cancer cells.Nature cell biology · 2025Article
- Targeting Heparanase Attenuates Podocyte Injury Induced by Puromycin Aminonucleoside.Journal of cellular physiology · 2025Article
- Inflammation in glomerular diseases.Frontiers in immunology · 2025Review
- SHP2: its association and roles in systemic lupus erythematosus.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2023Article
- Actin Bundles Dynamics and Architecture.Biomolecules · 2023Review
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cell-matrix adhesions are mainly provided by integrin-mediated focal adhesions (FAs). We previously found that Shp2 is essential for FA maturation by promoting ROCK2 activation at FAs. In this study, we further delineated the role of α-actinin-4 in the FA recruitment and activation of Shp2. We used the conditional immortalized mouse podocytes to examine the role of α-actinin-4 in the regulation of Shp2 and ROCK2 signaling. After the induction of podocyte differentiation, Shp2 and ROCK2 were strongly activated, concomitant with the formation of matured FAs, stress fibers, and interdigitating intracellular junctions in a ROCK-dependent manner. Gene knockout of α-actinin-4 abolished the Shp2 activation and subsequently reduced matured FAs in podocytes. We also demonstrated that gene knockout of ROCK2 impaired the generation of contractility and interdigitating intercellular junctions. Our results reveal the role of α-actinin-4 in the recruitment of Shp2 at FAs to potentiate ROCK2 activation for the maintenance of cellular contractility and cytoskeletal architecture in the cultured podocytes.
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