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hsa-mir-18b: Hsa-mir-18b is a microRNA that has been implicated in various biological processes and diseases. It has been suggested that hsa-mir-18b may be involved in the relapsing phase of multiple sclerosis (MS) [PMC4389014]. Additionally, hsa-mir-18b has been predicted to target genes involved in regulating cell cycle, cell projection, cell junction, and cytoskeleton, indicating its potential role in influencing cell proliferation and migration [PMC5379007]. In the context of altered epithelial barriers and cell junctions, hsa-mir-18b was expressed in cultured epithelial cells to identify its involvement in an epithelial-focused functional miR network [PMC6174781]. However, the temperature-responsiveness of hsa-mir-18b observed by microarray was not confirmed by qRT-PCR [PMC4478345]. Furthermore, hsa-mir-18b levels were measured in plasma samples of patients with unprovoked venous thromboembolism (uVTE) to investigate its biological role in VTE. It was found that hsa-mir-18b levels were altered along with other identified differentially expressed genes (DEGs) [PMC8357955]. Hsa-mir-18b is part of a larger group of microRNAs that collectively regulate specific target genes involved in different biological processes. For example, it is part of a group that regulates ESR1-related genes [PMC6176299]. In various cancer types such as serous ovarian carcinoma and Ewing sarcoma, hsa-mir-18b has been shown to be associated with specific gene expression patterns and cellular behaviors [PMC3342161] [PMC7290785]. Finally, it has been suggested that certain miRNAs including hsa-miR-34a and hsa-miR-210, along with hsa-mir-18b, may play critical roles in sudden sensorineural hearing loss (SSNHL) [PMC5708990].
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