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Homo sapiens (human) microRNA hsa-mir-641 precursor URS000075CBEE_9606

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MIR641: MIR641 is a microRNA that has been implicated in various biological processes and diseases [PMC2885343]. In the context of testicular germ cell cancer (TGCC), the down-regulation of MIR641 has been associated with the repression of the DMRT1 gene and a subsequent decrease in PTGDS gene expression in human fetal testis [PMC6195803]. In order to study the effects of MIR641 on DMRT1, first and second-trimester human fetal testis tissue was transduced with either MIR641, miR536 (another miRNA targeting DMRT1), or a scrambled control [PMC6195803]. The repression of DMRT1 was observed at the protein level in both trimesters, but only second-trimester tissue transduced with MIR641 showed a reduction in DMRT1 mRNA transcript level [PMC6195803]. Additionally, exposure to either miR536 or MIR641 resulted in a loss of DMRT1 protein expression in Sertoli cells [PMC6195803]. The study also found that R-spondin 1 expression was downregulated in tissue transduced with either miR536 or MIR641, while SOX8 expression was reduced following exposure to both miR536 and MIR641 [PMC6195803]. Furthermore, it was observed that knockdown of DMRT1 using either miR536 or MIR641 did not significantly affect inter-individual variation in DMRT gene expression [PMC6195803]. Overall, these findings suggest that MIR641 plays a role in TGCC pathogenesis through its regulation of DMRT1 and associated genes.

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Gene Ontology annotations

Sequence

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UGGGUGAAAGGAAGGAAAGACAUAGGAUAGAGUCACCUCUGUCCUCUGUCCUCUACCUAUAGAGGUGACUGUCCUAUGUCUUUCCUUCCUCUUACCCCU

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