Induced expression of miR-1250-5p exerts tumor suppressive role in triple-negative breast cancer cells

dc.contributor.authorShuaib, Mohd
dc.contributor.authorKumar, Shashank
dc.date.accessioned2024-01-16T14:23:20Z
dc.date.accessioned2024-08-13T10:34:14Z
dc.date.available2024-01-16T14:23:20Z
dc.date.available2024-08-13T10:34:14Z
dc.date.issued2022-12-22T00:00:00
dc.description.abstractTriple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer, and it has a prevalence rate of 15%�20% among all breast cancer cases in younger women. Still, the underlying molecular mechanisms of its pathogenesis are not entirely understood. In the previous study, we identified that microRNA (miR)-1250-5p is significantly down-expressed in TNBC cells. Thus, in the present study, we explore the functional anticancer role of miR?1250?5p in the transient mimic transfected TNBC cells. 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay was used to examine the effect of miR-1250-5p on cell viability of TNBC (MDA-MB-231 and MDA-MB-453) cells. The confocal microscopy, quantitative real-time polymerase chain reaction, and western blot analysis techniques were used to assess the effect of miR-1250-5p on cancer hallmarks in test cells. Induced miR?1250-5p expression in MDA-MB-231 and MDA-MB-453 cells decreased cell viability in a time-dependent manner. Increased miR?1250-5p expression levels significantly decreased cell cycle G1/S phase transition markers (Cyclin D1 and CDK4) at messenger RNA (mRNA) and protein levels in TNBC cells compared to scrambled sequence transfected cells. Transient transfection of TNBC cells with miR-1250-5p mimic increased apoptosis in TNBC cells by increasing the level of active caspase (Caspase 8 and Caspase 3) of the intrinsic pathway. Apoptosis-related morphological changes were also observed in the test cells. Further, the induced expression of miR-1250-5p significantly decreased epithelial-mesenchymal transition (EMT) by altering the mRNA and protein levels of E-cadherin and Vimentin. Moreover, results of confocal microscopy revealed increased reactive oxygen species generation, and decreased mitochondria membrane potential in miR-1250-5p mimic transient transfected TNBC cells. In conclusion, miR?1250-5p acts as tumor suppressor in TNBC cells and its induction by therapeutics might be a novel strategy for the disease treatment. � 2022 Wiley Periodicals LLC.en_US
dc.identifier.doi10.1002/jcb.30362
dc.identifier.issn7302312
dc.identifier.urihttps://doi.org/10.1002/jcb.30362
dc.identifier.urihttps://kr.cup.edu.in/handle/32116/2906
dc.language.isoen_USen_US
dc.publisherJohn Wiley and Sons Incen_US
dc.subjectapoptosisen_US
dc.subjectcell cycleen_US
dc.subjectmetastasisen_US
dc.subjectmicroRNAen_US
dc.subjectTNBCen_US
dc.titleInduced expression of miR-1250-5p exerts tumor suppressive role in triple-negative breast cancer cellsen_US
dc.title.journalJournal of Cellular Biochemistryen_US
dc.typeArticleen_US
dc.type.accesstypeOpen Accessen_US

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