Journal article
NCK Associated Protein 1 Modulated by miRNA-214 Determines Vascular Smooth Muscle Cell Migration, Proliferation, and Neointima Hyperplasia
Journal of the American Heart Association, Vol.5(12), p.n/a
12/07/2016
DOI: 10.1161/JAHA.116.004629
PMCID: PMC5210428
PMID: 27927633
Abstract
MicroRNA miR-214 has been implicated in many biological cellular functions, but the impact of miR-214 and its target genes on vascular smooth muscle cell (VSMC) proliferation, migration, and neointima smooth muscle cell hyperplasia is unknown.
Expression of miR-214 was closely regulated by different pathogenic stimuli in VSMCs through a transcriptional mechanism and decreased in response to vascular injury. Overexpression of miR-214 in serum-starved VSMCs significantly decreased VSMC proliferation and migration, whereas knockdown of miR-214 dramatically increased VSMC proliferation and migration. Gene and protein biochemical assays, including proteomic analyses, showed that NCK associated protein 1 (NCKAP1)-a major component of the WAVE complex that regulates lamellipodia formation and cell motility-was negatively regulated by miR-214 in VSMCs. Luciferase assays showed that miR-214 substantially repressed wild-type but not the miR-214 binding site mutated version of NCKAP1 3' untranslated region luciferase activity in VSMCs. This result confirmed that NCKAP1 is the functional target of miR-214 in VSMCs. NCKAP1 knockdown in VSMCs recapitulates the inhibitory effects of miR-214 overexpression on actin polymerization, cell migration, and proliferation. Data from cotransfection experiments also revealed that inhibition of NCKAP1 is required for miR-214-mediated lamellipodia formation, cell motility, and growth. Importantly, locally enforced expression of miR-214 in the injured vessels significantly reduced NCKAP1 expression levels, inhibited VSMC proliferation, and prevented neointima smooth muscle cell hyperplasia after injury.
We uncovered an important role of miR-214 and its target gene NCKAP1 in modulating VSMC functions and neointima hyperplasia. Our findings suggest that miR-214 represents a potential therapeutic target for vascular diseases.
Details
- Title: Subtitle
- NCK Associated Protein 1 Modulated by miRNA-214 Determines Vascular Smooth Muscle Cell Migration, Proliferation, and Neointima Hyperplasia
- Creators
- Tayyab Adeel Afzal - University of Iowa, Internal MedicineLe Anh Luong - Centre for Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, United KingdomDan Chen - Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, ChinaCheng Zhang - Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, ChinaFeng Yang - Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, ChinaQishan Chen - Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, ChinaWeiwei An - Centre for Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, United KingdomEdmund Wilkes - Centre for Haemato-Oncology, Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, United KingdomKenta Yashiro - Translational Medicine & Therapeutics, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, United KingdomPedro R Cutillas - Centre for Haemato-Oncology, Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, United KingdomLi Zhang - Zhejiang UniversityQingzhong Xiao - University of Iowa, Health and Human Physiology
- Resource Type
- Journal article
- Publication Details
- Journal of the American Heart Association, Vol.5(12), p.n/a
- DOI
- 10.1161/JAHA.116.004629
- PMID
- 27927633
- PMCID
- PMC5210428
- ISSN
- 2047-9980
- eISSN
- 2047-9980
- Grant note
- PG/15/11/31279 / British Heart Foundation PG/15/86/31723 / British Heart Foundation PG/13/45/30326 / British Heart Foundation PG/16/1/31892 / British Heart Foundation FS/09/044/28007 / British Heart Foundation PG/11/40/28891 / British Heart Foundation
- Language
- English
- Date published
- 12/07/2016
- Academic Unit
- Internal Medicine
- Record Identifier
- 9984130695102771
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