ArticlePloS one2014
CD9 negatively regulates CD26 expression and inhibits CD26-mediated enhancement of invasive potential of malignant mesothelioma cells.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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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.
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Who cites it
21 citing papers in PubMed, 31 citations in OpenAlex.
- Review
- A Systems Biology Approach Unveils a Critical Role of DPP4 in Upper Gastrointestinal Cancer Patient Outcomes.Journal of environmental pathology, toxicology and oncology : official organ of the International Society for Environmental Toxicology and Cancer · 2024Article
- CD26Frontiers in immunology · 2023Article
- CD9, a tetraspanin target for cancer therapy?Experimental biology and medicine (Maywood, N.J.) · 2021Review
- Malignant Pleural Mesothelioma Interactome with 364 Novel Protein-Protein Interactions.Cancers · 2021Article
- The Roles of Dipeptidyl Peptidase 4 (DPP4) and DPP4 Inhibitors in Different Lung Diseases: New Evidence.Frontiers in pharmacology · 2021Review
- The Roles of Integrin α5β1 in Human Cancer.OncoTargets and therapy · 2020Review
- Sitagliptin and the Blood-Retina Barrier: Effects on Retinal Endothelial Cells Manifested Only after Prolonged Exposure.Journal of diabetes research · 2020Article
- DPP8 is a novel therapeutic target for multiple myeloma.Scientific reports · 2019Article
- Tetraspanins: Architects of Viral Entry and Exit Platforms.Journal of virology · 2019Review
- Predictive significance of serum dipeptidyl peptidase-IV in papillary thyroid carcinoma.Cancer biomarkers : section A of Disease markers · 2019Article
- Article
- CD26 is a potential therapeutic target by humanized monoclonal antibody for the treatment of multiple myeloma.Blood cancer journal · 2018Article
- Tetraspanin CD9: A Key Regulator of Cell Adhesion in the Immune System.Frontiers in immunology · 2018Review
- The tetraspanin CD9 facilitates MERS-coronavirus entry by scaffolding host cell receptors and proteases.PLoS pathogens · 2017Article
- First-in-human phase 1 of YS110, a monoclonal antibody directed against CD26 in advanced CD26-expressing cancers.British journal of cancer · 2017Article
- Suppression of CD26 inhibits growth and metastasis of pancreatic cancer.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016Article
- DPPIV/CD26: a tumor suppressor or a marker of malignancy?Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016Review
- Interactions of DPP-4 and integrin β1 influences endothelial-to-mesenchymal transition.Kidney international · 2015Article
- Coronavirus and influenza virus proteolytic priming takes place in tetraspanin-enriched membrane microdomains.Journal of virology · 2015Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
CD26/dipeptidyl peptidase IV is a cell surface glycoprotein which consists of multiple functional domains beside its ectopeptidase site. A growing body of evidence indicates that elevated expression of CD26 correlates with disease aggressiveness and invasive potential of selected malignancies. To further explore the molecular mechanisms involved in this clinical behavior, our current work focused on the interaction between CD26 and CD9, which were recently identified as novel markers for cancer stem cells in malignant mesothelioma. We found that CD26 and CD9 co-modulated and co-precipitated with each other in the malignant mesothelioma cell lines ACC-MESO1 and MSTO-211H. SiRNA study revealed that depletion of CD26 led to increased CD9 expression, while depletion of CD9 resulted in increased CD26 expression. Consistent with these findings was the fact that gene transfer of CD26 into CD26-negative MSTO-211H cells reduced CD9 expression. Cell invasion assay showed that overexpression of CD26 or gene depletion of CD9 led to enhanced invasiveness, while CD26 gene depletion resulted in reduced invasive potential. Furthermore, our work suggested that this enhanced invasiveness may be partly mediated by α5β1 integrin, since co-precipitation studies demonstrated an association between CD26 and α5β1 integrin. Finally, gene depletion of CD9 resulted in elevated protein levels and tyrosine phosphorylation of FAK and Cas-L, which are downstream of β1 integrin, while depletion of CD26 led to a reduction in the levels of these molecules. Collectively, our findings suggest that CD26 potentiates tumor cell invasion through its interaction with α5β1 integrin, and CD9 negatively regulates tumor cell invasion by reducing the level of CD26-α5β1 integrin complex through an inverse correlation between CD9 and CD26 expression. Our results also suggest that CD26 and CD9 serve as potential biomarkers as well as promising molecular targets for novel therapeutic approaches in malignant mesothelioma and other malignancies.
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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.