microRNA 320b-1 (MIR320B1)

microRNA 320b-1 (MIR320B1) is a short non-coding RNA molecule that functions as a post-transcriptional regulator of gene expression in multicellular organisms. It is produced through sequential cleavage of primary transcripts into a mature miRNA that is incorporated into the RNA-induced silencing complex (RISC)[2]. MIR320B1 modulates the stability and translation of its target mRNAs, resulting in translational inhibition or mRNA degradation. It is part of the miR-320 family, which is frequently downregulated in several types of cancer. In colorectal cancer, for example, miR-320b-1 directly targets and suppresses the oncogene c-MYC, inhibiting cell proliferation and tumor growth[1]. Similar tumor-suppressive roles, including inhibition of cell proliferation, migration, and invasion, have been shown in other cancer types by targeting genes such as SP1, BMI1, and others[3][4]. MIR320B1 and related family members are also being investigated as potential biomarkers for cancer diagnosis and prognosis, particularly in hematological malignancies[4]. There are currently no approved drugs that directly target MIR320B1, but modulation of its expression or downstream targets represents an active area of experimental therapeutics research.

Other names

MIR320B-1MIRN320B1hsa-mir-320b-1mir-320b-1HSA-MIR-320B-1

Not applicable for direct drugs targeting MIR320B1. For hypothetical or experimental modulation: Antisense oligonucleotides or miRNA mimics could restore its tumor-suppressive function by inhibiting oncogenes such as c-Myc, BMI1, SP1[1][3][4].