miRBase entry: hsa-mir-1249

Stem-loop hsa-mir-1249


Accession
MI0006384
Symbol
HGNC: MIR1249
Description
Homo sapiens hsa-mir-1249 precursor miRNA mir-1249
Gene
family?
RF01918; mir-1249

Summary
Caution, this is an AI generated summary based on literature. This may have errors. ?

MIR1249 is a microRNA that has been identified as one of the top up-regulated genes in certain cellular contexts [PMC9279949]. It has been implicated in the regulation of chemo-resistance, particularly through its role in the expansion of CD133+ cancer stem cells (CSCs) [PMC7590111]. Inhibition of MIR1249 has been shown to increase chemo-sensitivity by limiting the expansion of resistant cell populations, suggesting its potential as a therapeutic target [PMC7590111]. MIR1249 is also associated with Wnt signaling pathways, with pathway analysis indicating an enrichment in Wnt signaling upon MIR1249 upregulation [PMC7590111]. Clinically, high tumor expression of MIR1249 correlates with a worse prognosis independently of adjuvant chemotherapy [PMC7590111'>PMC7590111]. Furthermore, pathway analysis revealed that inhibition of MIR1249 affects pathways deregulated by chemotherapy, indicating its role in mediating chemo-resistance through these pathways [PMC7590111]. In vivo studies have confirmed that knockout (KO) cells for MIR1249 exhibit reduced tumorigenicity and increased sensitivity to chemotherapy, reinforcing its significance in cancer progression and treatment resistance [PMC7590111].

Literature search
16 open access papers mention hsa-mir-1249
(33 sentences)

Sequence

2157 reads, 67 reads per million, 118 experiments
gggAGGAGGGAGGAGAUGGGCCAAGUUcccucuggcuggaACGCCCUUCCCCCCCUUCUUCAccug
.(((((((((.((.((.((((...(((((........))))))))).)).))))))))))).....

Structure
----g         A  A  U    CAA     cuc 
     ggAGGAGGG GG GA GGGC   GUUcc   u
     ||||||||| || || ||||   |||||    
     CUUCUUCCC CC CU CCCG   CAagg   g
guccA         -  C  U    ---     ucg 


Annotation confidence High
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Genome context
chr22: 45200954-45201019 [-]

Disease association
hsa-mir-1249 is associated with one or more human diseases in the Human microRNA Disease Database
Disease Description Category PubMed ID


Database links

Mature hsa-miR-1249-3p

Accession MIMAT0005901
Description Homo sapiens hsa-miR-1249-3p mature miRNA
Sequence 41 - ACGCCCUUCCCCCCCUUCUUCA - 62
Evidence experimental
Illumina [1]
Database links
Predicted targets

Mature hsa-miR-1249-5p

Accession MIMAT0032029
Description Homo sapiens hsa-miR-1249-5p mature miRNA
Sequence 4 - AGGAGGGAGGAGAUGGGCCAAGUU - 27
Evidence not_experimental
Database links
Predicted targets

References

  1. PubMed ID: 18285502
    Application of massively parallel sequencing to microRNA profiling and discovery in human embryonic stem cells
    "Morin RD, O'Connor MD, Griffith M, Kuchenbauer F, Delaney A, Prabhu AL, Zhao Y, McDonald H, Zeng T, Hirst M, Eaves CJ, Marra MA"
    "Genome Res (2008) 18:610-621