ArticleThe Journal of biological chemistry2009
Intersectin-2L regulates caveola endocytosis secondary to Cdc42-mediated actin polymerization.
Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
26 citing papers in PubMed, 60 citations in OpenAlex.
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- TC10 regulates breast cancer invasion and metastasis by controlling membrane type-1 matrix metalloproteinase at invadopodia.Communications biology · 2021Article
- The Emerging Role of Rho Guanine Nucleotide Exchange Factors in Cardiovascular Disorders: Insights Into Atherosclerosis: A Mini Review.Frontiers in cardiovascular medicine · 2021Review
- Lung Endothelial Transcytosis.Comprehensive Physiology · 2020Review
- Porcine sapelovirus enters PK-15 cells via caveolae-dependent endocytosis and requires Rab7 and Rab11.Virology · 2019Article
- Epsin15 Homology Domains: Role in the Pathogenesis of Pulmonary Arterial Hypertension.Frontiers in physiology · 2018Article
- Intersectin scaffold proteins and their role in cell signaling and endocytosis.Biochimica et biophysica acta. Molecular cell research · 2017Review
- Phosphatidic Acid Produced by RalA-activated PLD2 Stimulates Caveolae-mediated Endocytosis and Trafficking in Endothelial Cells.The Journal of biological chemistry · 2016Article
- Rac1-mediated cytoskeleton rearrangements induced by intersectin-1s deficiency promotes lung cancer cell proliferation, migration and metastasis.Molecular cancer · 2016Article
- CDC42 Use in Viral Cell Entry Processes by RNA Viruses.Viruses · 2015Review
- ITSN2L Interacts with and Negatively Regulates RABEP1.International journal of molecular sciences · 2015Article
- Interaction of membrane/lipid rafts with the cytoskeleton: impact on signaling and function: membrane/lipid rafts, mediators of cytoskeletal arrangement and cell signaling.Biochimica et biophysica acta · 2014Review
- Regulating dynamin dynamics during endocytosis.F1000prime reports · 2014Review
- Small Molecule Inhibitors Limit Endothelial Cell Invasion by Staphylococcus aureus.Current pharmaceutical biotechnology · 2014Article
- Rho GAPs and GEFs: controling switches in endothelial cell adhesion.Cell adhesion & migration · 2014Review
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Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Here we addressed the role of intersectin-2L (ITSN-2L), a guanine nucleotide exchange factor for the Rho GTPase Cdc42, in the mechanism of caveola endocytosis in endothelial cells (ECs). Immunoprecipitation and co-localization studies showed that ITSN-2L associates with members of the Cdc42-WASp-Arp2/3 actin polymerization pathway. Expression of Dbl homology-pleckstrin homology (DH-PH) region of ITSN-2L (DH-PH(ITSN-2L)) induced specific activation of Cdc42, resulting in formation of extensive filopodia, enhanced cortical actin, as well as a shift from G-actin to F-actin. The "catalytically dead" DH-PH domain reversed these effects and induced significant stress fiber formation, without a detectable shift in actin pools. A biotin assay for caveola internalization indicated a significant decrease in the uptake of biotinylated proteins in DH-PH(ITSN-2L)-transfected cells compared with control and 1 microM jasplakinolide-treated cells. ECs depleted of ITSN-2L by small interfering RNA, however, showed decreased Cdc42 activation and actin remodeling similar to the defective DH-PH, resulting in 62% increase in caveola-mediated uptake compared with controls. Thus, ITSN-2L, a guanine nucleotide exchange factor for Cdc42, regulates different steps of caveola endocytosis in ECs by controlling the temporal and spatial actin polymerization and remodeling sub-adjacent to the plasma membrane.
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Registered trials
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.