ArticlePloS one2015
αII-spectrin regulates invadosome stability and extracellular matrix degradation.
Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 12 citations in OpenAlex.
- Critical role of alpha spectrin in DNA repair: the importance of μ-calpain and Fanconi anemia proteins.Experimental biology and medicine (Maywood, N.J.) · 2025Review
- Deficiency of αII-spectrin affects endothelial cell-matrix contact and migration leading to impairment of angiogenesis in vitro.Cellular & molecular biology letters · 2020Article
- The role of spectrin in cell adhesion and cell-cell contact.Experimental biology and medicine (Maywood, N.J.) · 2019Review
- The functional importance of lamins, actin, myosin, spectrin and the LINC complex in DNA repair.Experimental biology and medicine (Maywood, N.J.) · 2019Review
- Review
- Spectrin regulates cell contractility through production and maintenance of actin bundles in the Caenorhabditis elegans spermatheca.Molecular biology of the cell · 2018Article
- Annexin A6-A multifunctional scaffold in cell motility.Cell adhesion & migration · 2017Review
- αII-spectrin in T cells is involved in the regulation of cell-cell contact leading to immunological synapse formation?PloS one · 2017Article
- β3 integrin expression is required for invadopodia-mediated ECM degradation in lung carcinoma cells.PloS one · 2017Article
- α-Spectrin and integrins act together to regulate actomyosin and columnarization, and to maintain a monolayered follicular epithelium.Development (Cambridge, England) · 2016Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Invadosomes are actin-rich adhesion structures involved in tissue invasion and extracellular matrix (ECM) remodelling. αII-Spectrin, an ubiquitous scaffolding component of the membrane skeleton and a partner of actin regulators (ABI1, VASP and WASL), accumulates highly and specifically in the invadosomes of multiple cell types, such as mouse embryonic fibroblasts (MEFs) expressing SrcY527F, the constitutively active form of Src or activated HMEC-1 endothelial cells. FRAP and live-imaging analysis revealed that αII-spectrin is a highly dynamic component of invadosomes as actin present in the structures core. Knockdown of αII-spectrin expression destabilizes invadosomes and reduces the ability of the remaining invadosomes to digest the ECM and to promote invasion. The ECM degradation defect observed in spectrin-depleted-cells is associated with highly dynamic and unstable invadosome rings. Moreover, FRAP measurement showed the specific involvement of αII-spectrin in the regulation of the mobile/immobile β3-integrin ratio in invadosomes. Our findings suggest that spectrin could regulate invadosome function and maturation by modulating integrin mobility in the membrane, allowing the normal processes of adhesion, invasion and matrix degradation. Altogether, these data highlight a new function for spectrins in the stability of invadosomes and the coupling between actin regulation and ECM degradation.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.