Journal
JOURNAL OF CARDIOVASCULAR TRANSLATIONAL RESEARCH
Volume 3, Issue 3, Pages 251-255Publisher
SPRINGER
DOI: 10.1007/s12265-010-9169-7
Keywords
MicroRNA; MicroRNA-21; Gene Expression; Cardiovascular Disease
Funding
- National Institutes of Health [HL080133]
- American Heart Association [09GRNT2250567]
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MicroRNA-21 (miR-21) is a highly expressed microRNA (miRNA) in cardiovascular system. Recent studies have revealed that its expression is deregulated in heart and vasculature under cardiovascular disease conditions such as proliferative vascular disease, cardiac hypertrophy and heart failure, and ischemic heart disease. miR-21 is found to play important roles in vascular smooth muscle cell proliferation and apoptosis, cardiac cell growth and death, and cardiac fibroblast functions. Accordingly, miR-21 is proven to be involved in the pathogenesis of the above-mentioned cardiovascular diseases as demonstrated by both loss-of-function and gain-of-function approaches. Programmed cell death 4 (PDCD4), phosphatase and tensin homology deleted from chromosome 10 (PTEN), sprouty1 (SPRY1), and sprouty2 (SPRY2) are the current identified target genes of miR-21 that are involved in miR-21-mediated cardiovascular effects. miR-21 might be a novel therapeutic target in cardiovascular diseases. This review article summarizes the research progress regarding the roles of miR-21 in cardiovascular disease.
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