bta-mir-139: Bta-mir-139 is a microRNA that has been studied in various contexts. It is a widely used assumption that there is only one type of mature bta-mir-139, and it has the same sequence as hsa-miR-139-5p [PMC5702184]. In one study, cells were co-transfected with a luciferase reporter construct and bta-mir-139 mimic or negative control [PMC5702184]. The study found that the 3'-UTR of GHR contained a predicted bta-mir-139 binding region [PMC5702184]. Another study investigated the effect of bta-mir-139 on cell proliferation and used MTT dye to assess it [PMC5702184]. The 3'-UTR of IGF1R was found to contain a predicted bta-mir-139 binding region as well [PMC5702184]. In another study, BMECs were transfected with bta-mir-139 mimic or negative control using Lipofectamine 2000 [PMC5702184]. Bta-miR-99a-3p, bta-miR-2396, bta-mir-139, and bta-miR-10a were found to be more abundant in MDSCs compared to MDSC-P [PMC5415838] and were also investigated in the context of their target genes in another study [PMC6720277]. Bta-miR-127 was associated with the most target genes, followed by bta-mir-139, among others [PMC6720277]. Overall, these studies provide insights into the role of bta-mir-139 in various cellular processes.