Biology:miR-150

From HandWiki
Short description: Family of microRNA precursors found in mammals
miR-150
Mir-150 SS.png
Conserved secondary structure of miR-150 microRNA precursor
Identifiers
SymbolmiR-150
Alt. SymbolsMIR150
RfamRF00767
miRBaseMI0000479
miRBase familyMIPF0000197
NCBI Gene406942
HGNC31537
OMIM610566
RefSeqNR_029703
Other data
RNA typemiRNA
Domain(s)Mammalia
GO0035195
SO0001244
LocusChr. 19 q13.33
PDB structuresPDBe

miR-150 is a family of microRNA precursors found in mammals, including humans. The ~22 nucleotide mature miRNA sequence is excised from the precursor hairpin by the enzyme Dicer.[1] This sequence then associates with RISC which effects RNA interference.[2]

miR-150 functions in hematopoiesis; it regulates genes whose downstream products encourage differentiating stem cells towards becoming megakaryocytes rather than erythrocytes.[3][4] It is also thought to control B and T cell differentiation, alongside miR-155.[5][6]

Role in cancer

miR-150 has been linked with a number of cancers. It is thought to promote cancer cell proliferation in gastric cancer and has also been found to be more than 50x overexpressed in osteosarcoma.[7]

Applications

miR-150 levels in blood plasma can be indicative of early sepsis; it could have a future use therapeutically in treating the condition.[8] In addition, miR-150 is one of a number of microRNAs whose expression profile could be used as a biomarker of hepatocellular carcinoma.[9]

References

  1. "microRNAs: tiny regulators with great potential". Cell 107 (7): 823–6. Dec 2001. doi:10.1016/S0092-8674(01)00616-X. PMID 11779458. 
  2. "Human RISC couples microRNA biogenesis and posttranscriptional gene silencing". Cell 123 (4): 631–40. Nov 2005. doi:10.1016/j.cell.2005.10.022. PMID 16271387. 
  3. "MicroRNA-mediated control of cell fate in megakaryocyte-erythrocyte progenitors". Developmental Cell 14 (6): 843–53. Jun 2008. doi:10.1016/j.devcel.2008.03.012. PMID 18539114. 
  4. "MicroRNAs in platelet production and activation". Blood 117 (20): 5289–96. May 2011. doi:10.1182/blood-2011-01-292011. PMID 21364189. 
  5. "The role of microRNAs in normal and malignant hematopoiesis". European Journal of Haematology 84 (1): 1–16. Jan 2010. doi:10.1111/j.1600-0609.2009.01348.x. PMID 19744129. 
  6. "MicroRNAs in normal and malignant hematopoiesis". Current Opinion in Hematology 15 (4): 352–8. Jul 2008. doi:10.1097/MOH.0b013e328303e15d. PMID 18536574. 
  7. "Identification of Differentially Expressed MicroRNAs in Osteosarcoma". Sarcoma 2011: 732690. 2011. doi:10.1155/2011/732690. PMID 21789031. 
  8. Gold, Jeffrey A, ed (2009-10-12). "MicroRNA fingerprints identify miR-150 as a plasma prognostic marker in patients with sepsis". PLOS ONE 4 (10): e7405. doi:10.1371/journal.pone.0007405. PMID 19823581. Bibcode2009PLoSO...4.7405V. 
  9. "Altered microRNA Expression Patterns in Hepatoblastoma Patients". Translational Oncology 2 (3): 157–63. Aug 2009. doi:10.1593/tlo.09124. PMID 19701500. 

Further reading