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Just as miRNA is involved in the normal functioning of eukaryotic cells, so has dysregulation of miRNA been associated with disease. A manually curated, publicly available database, miR2Disease, documents known relationships between miRNA dysregulation and human disease. [154]
miR-15a/16-1 deletion has been shown to accelerate the proliferation of both human and mouse B-cells through modulation of the expression of genes controlling cell cycle progression. [5] Studies have found the miR-15a/16-1 microRNA cluster to function as a tumour suppressor, with the oncogene BCL2 as its target. [6]
Some of the miRNA linked disorders that are encountered in the humans include cancers, muscular diseases, autoimmune disorders, and viruses. In order to determine the functionality of certain AMOs, the AMO/miRNA binding expression (transcript concentration) must be measured against the expressions of the isolated miRNA.
let-7 was later identified in humans as the first human miRNA , and is highly conserved across many species. [3] [4] Dysregulation of let-7 contributes to cancer development in humans by preventing differentiation of cells, leaving them stuck in a stem-cell like state. [1] let-7 is therefore classified as a tumor suppressor.
406947 n/a Ensembl ENSG00000283904 n/a UniProt n a n/a RefSeq (mRNA) n/a n/a RefSeq (protein) n/a n/a Location (UCSC) Chr 21: 25.57 – 25.57 Mb n/a PubMed search n/a Wikidata View/Edit Human MiR-155 is a microRNA that in humans is encoded by the MIR155 host gene or MIR155HG. MiR-155 plays a role in various physiological and pathological processes. [7] [8] [9] Exogenous molecular control in ...
The paralogous miRNA gene clusters that give rise to miR-17 family microRNAs (miR-17~92, miR-106a~363, and miR-106b~25) have been implicated in a wide variety of malignancies and are sometimes referred to as oncomirs. [4] The oncogenic potential of these non-protein encoding genes was first identified in mouse viral tumorigenesis screens.
This new class of genes has recently been shown to play a central role in malignant transformation. miRNA are downregulated in many tumors and thus appear to function as tumor suppressor genes. [1] The mature products miR-181a, miR-181b, miR-181c or miR-181d are thought to have regulatory roles at posttranscriptional level, through ...
In molecular biology mir-210 microRNA is a short RNA molecule. MicroRNAs function to regulate the expression levels of other genes by several mechanisms.. mir-210 has been strongly linked with the hypoxia pathway, and is upregulated in response to Hypoxia-inducible factors. [1]