MIR182(microRNA-182)是一种小分子非编码RNA,属于microRNA基因家族,该家族成员通常通过结合靶基因的mRNA调控基因表达,影响细胞增殖、分化、凋亡等多种生物学过程。MIR182在多种组织中表达,尤其在眼睛、大脑和免疫系统中发挥重要作用。它的主要功能是通过抑制靶基因的表达参与调控生物钟、光感受器发育和免疫反应。MIR182的靶基因包括FOXO1、MITF和CLOCK等,这些基因涉及细胞周期调控、黑色素合成和昼夜节律。MIR182的突变或表达异常可能导致功能紊乱,例如在视网膜中过表达可能加速光感受器退化,与年龄相关性黄斑变性等眼病相关。此外,MIR182在多种癌症中异常表达,如在黑色素瘤中过表达可能通过抑制FOXO1促进肿瘤生长和转移,而在某些神经性疾病中低表达可能与神经保护功能减弱有关。MIR182属于miR-183/96/182基因簇,该家族成员在感觉器官(如眼睛和耳朵)中高度表达,共同调控感觉细胞的发育和功能。如果MIR182过表达,可能抑制肿瘤抑制基因,促进癌症进展;若表达降低,可能导致光感受器功能异常或免疫失调。研究还发现MIR182与炎症反应和代谢疾病有关,例如在糖尿病中可能通过影响胰岛素信号通路参与疾病发生。总体而言,MIR182是一个多功能的小RNA,其表达水平需精确调控以维持正常生理功能,异常表达可能引发多种疾病。
microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]
微RNA(miRNAs)是短(20-24核苷酸)非编码由既影响稳定性和mRNA的翻译参与基因表达的转录后调控在多细胞生物体的RNA。的miRNA通过RNA聚合酶II转录为加盖并聚腺苷酸化初级转录物的部分(PRI-微RNA),可以是任一蛋白质编码或非编码。初级转录由酶Drosha核糖核酸酶III酶裂解以产生约70个核苷酸茎 - 环前体miRNA(前miRNA),这是由胞质Dicer的核糖核酸酶进一步切割以产生成熟miRNA和反义miRNA的星(miRNA的* )产品。成熟miRNA掺入RNA诱导的沉默复合物(RISC),其通过不完全碱基配对识别靶mRNA与所述miRNA和最通常导致翻译抑制或去稳定化的靶mRNA。所述的RefSeq表示预测的微RNA茎环。 [由RefSeq的,2009年09月提供]
MIR182基因(以及对应的蛋白质)的细胞分布位置:
MIR182基因的本体(GO)信息:
| 疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
| melanoma | 0.004353001 | 6 | 0 | BeFree_LHGDN |
| Neoplasm Metastasis | 0.00434307 | 16 | 0 | BeFree |
| Sleep Initiation and Maintenance Disorders | 0.002367032 | 1 | 0 | GAD |
| Ovarian Carcinoma | 0.001900093 | 7 | 0 | BeFree |
| Carcinoma of lung | 0.001900093 | 7 | 0 | BeFree |
| Malignant neoplasm of ovary | 0.001900093 | 7 | 0 | BeFree |
| Malignant neoplasm of lung | 0.001900093 | 7 | 0 | BeFree |
| Colorectal Carcinoma | 0.001628651 | 6 | 0 | BeFree |
| Malignant neoplasm of breast | 0.001628651 | 6 | 0 | BeFree |
| Carcinogenesis | 0.001628651 | 6 | 0 | BeFree |
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