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In molecular biology, mir-221 microRNA (and its paralogue, mir-222) is a short RNA molecule. MicroRNAs function to regulate the expression levels of other genes by several mechanisms.
mir-221 | |
---|---|
Identifiers | |
Symbol | mir-221 |
Rfam | RF00651 |
miRBase family | MIPF0000051 |
HGNC | 31601 |
OMIM | 300568 |
Other data | |
RNA type | microRNA |
Domain(s) | Eukaryota; Vertebrata; |
PDB structures | PDBe |
mir-221 is an oncogenic microRNA.[1] It targets CD117, which then prevents cell migration and proliferation in endothelial cells.[2][3] miR-221 is known as an anti angiogenic miRNA.[4][2] Recent important studies have reported that miR-221 is also involved in induction of angiogenesis.[5][6][7] RNA induced Silencing Complex (RISC) proteins SND1 and AEG-1 induces miR-221 expression in Liver cancer.[8] In liver cancer miR-221 induces the tumor angiogenesis.[5] miR-221 detection in human faeces can be a non-invasive screening marker for colorectal cancer.[9]
miR-221 has been identified as playing a role in androgenetic alopecia.[10]
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