MIR181A1 Gene

HGNC Family Non-coding RNAs
Name microRNA 181a-1
Description 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]
Summary
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In several solid and hematologic malignancies, for example in breast cancer it is upregulated by TGF–β to enhance cancer stem cell–like properties via suppression of the ATM tumor suppressor (PMIDs"}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "3"}]}, {"type": "t", "text": ", while in certain thyroid and head and neck cancers it exerts tumor‐suppressive effects by targeting oncogenes such as K–ras and Twist1 (PMIDs."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "4", "end_ref": "6"}]}, {"type": "t", "text": " In acute myeloid leukemia (AML) and related disorders, elevated miR‐181a correlates with favorable prognosis by promoting apoptosis and influencing differentiation through repression of homeobox gene networks (PMIDs."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "7", "end_ref": "15"}]}, {"type": "t", "text": " In addition, in aggressive cancers such as triple–negative breast cancer and lung adenocarcinoma, miR‐181a deregulation contributes to chemoresistance and metastatic progression by interfering with apoptotic effectors (for example, by suppressing BAX expression) and by modulating signaling pathways through targets like PTEN (PMIDs."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "16"}]}, {"type": "t", "text": " Salivary and tongue carcinomas also illustrate its dual roles—where increased miR‐181a can counteract proliferation and anchorage–independent growth while its downregulation supports epithelial–mesenchymal transition and chemoresistance (PMIDs."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "18", "end_ref": "20"}]}, {"type": "t", "text": " Moreover, in colon cancer, miR‐181a drives metabolic reprogramming by inhibiting PTEN and fostering AKT activation, whereas in osteosarcoma and colorectal cancer it impacts metastasis via modulation of extracellular vesicle cargo and paracrine signaling (PMIDs."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "21", "end_ref": "24"}]}, {"type": "t", "text": "."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "8"}, {"type": "fg_f", "ref": "25"}, {"type": "fg_fs", "start_ref": "18", "end_ref": "20"}, {"type": "fg_f", "ref": "26"}, {"type": "fg_f", "ref": "21"}, {"type": "fg_f", "ref": "27"}, {"type": "fg_f", "ref": "16"}, {"type": "fg_f", "ref": "10"}, {"type": "fg_f", "ref": "17"}, {"type": "fg_fs", "start_ref": "11", "end_ref": "15"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond malignant settings, miR‐181a serves pivotal roles in normal development, immune regulation, and tissue homeostasis. During endothelial differentiation from human embryonic stem cells, its upregulation enhances the expression of vascular markers and nitric oxide production (PMID"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "28"}]}, {"type": "t", "text": ", while in the adaptive immune system elevated levels in neonatal CD4⁺ T cells modulate T cell receptor sensitivity and calcium signaling, thereby shaping thymic selection and peripheral responses (PMIDs."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "29"}, {"type": "fg_f", "ref": "9"}]}, {"type": "t", "text": " Its functions extend to non–cancerous pathologies as well, being implicated in metabolic regulation during obesity (PMID"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "30"}]}, {"type": "t", "text": ", in mediating the anti–inflammatory and regenerative properties delivered via mesenchymal stem cell exosomes (PMID"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "31"}]}, {"type": "t", "text": ", and as a robust biomarker in chronic kidney disease where urinary exosomal miR‐181a levels are dramatically reduced (PMID."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "32"}]}, {"type": "t", "text": " Moreover, miR‐181a is a key modulator of T cell receptor signaling thresholds via YY1 in T lymphocytes (PMID"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "33"}]}, {"type": "t", "text": "and participates in cardiovascular homeostasis in coronary artery disease (via closely related family members, PMID."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "34"}]}, {"type": "t", "text": " Its dysregulation in osteoarthritis and pulmonary arterial hypertension underscores its broad impact on inflammatory and vascular remodeling processes (PMIDs"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "35"}]}, {"type": "t", "text": ", while altered plasma levels can even predict prognosis in neurodegenerative conditions such as amyotrophic lateral sclerosis (PMID."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "37"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nAt the regulatory level, miR‐181a expression is finely tuned by interactions with non–coding RNAs. In acute myeloid leukemia, for example, a truncated C/EBPα isoform drives its transcription, and in other contexts long non–coding RNAs and circular RNAs (such as those derived from FGFR3) function as competing endogenous “sponges” that sequester miR‐181a and modulate its activity (PMIDs."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "38"}, {"type": "fg_f", "ref": "25"}, {"type": "fg_f", "ref": "13"}, {"type": "fg_f", "ref": "39"}]}, {"type": "t", "text": " Such regulatory mechanisms not only influence its role in cancer progression but also impact metabolic reprogramming, stress responses and, ultimately, therapeutic sensitivity across a broad spectrum of diseases—from ovarian cancer treated in the neoadjuvant setting to the emergence of chemoresistance in lung adenocarcinoma (PMIDs."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "17"}, {"type": "fg_f", "ref": "24"}, {"type": "fg_f", "ref": "23"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Gong Chen, Wei Zhu, Dezhi Shi, et al. 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Synonyms HSA-MIR-181A-1, MIR-181A-1, MIR-213, MIRN181A1, MIR213, MIRN213
NCBI Gene ID 406995
API
Download Associations
Predicted Functions View MIR181A1's ARCHS4 Predicted Functions.
Co-expressed Genes View MIR181A1's ARCHS4 Predicted Functions.
Expression in Tissues and Cell Lines View MIR181A1's ARCHS4 Predicted Functions.

Functional Associations

MIR181A1 has 544 functional associations with biological entities spanning 6 categories (molecular profile, disease, phenotype or trait, functional term, phrase or reference, chemical, cell line, cell type or tissue, gene, protein or microRNA) extracted from 18 datasets.

Click the + buttons to view associations for MIR181A1 from the datasets below.

If available, associations are ranked by standardized value

Dataset Summary
CCLE Cell Line Gene CNV Profiles cell lines with high or low copy number of MIR181A1 gene relative to other cell lines from the CCLE Cell Line Gene CNV Profiles dataset.
ChEA Transcription Factor Binding Site Profiles transcription factor binding site profiles with transcription factor binding evidence at the promoter of MIR181A1 gene from the CHEA Transcription Factor Binding Site Profiles dataset.
ChEA Transcription Factor Targets transcription factors binding the promoter of MIR181A1 gene in low- or high-throughput transcription factor functional studies from the CHEA Transcription Factor Targets dataset.
COSMIC Cell Line Gene CNV Profiles cell lines with high or low copy number of MIR181A1 gene relative to other cell lines from the COSMIC Cell Line Gene CNV Profiles dataset.
CTD Gene-Disease Associations diseases associated with MIR181A1 gene/protein from the curated CTD Gene-Disease Associations dataset.
ENCODE Histone Modification Site Profiles histone modification site profiles with high histone modification abundance at MIR181A1 gene from the ENCODE Histone Modification Site Profiles dataset.
ENCODE Transcription Factor Binding Site Profiles transcription factor binding site profiles with transcription factor binding evidence at the promoter of MIR181A1 gene from the ENCODE Transcription Factor Binding Site Profiles dataset.
ENCODE Transcription Factor Targets transcription factors binding the promoter of MIR181A1 gene in ChIP-seq datasets from the ENCODE Transcription Factor Targets dataset.
GeneRIF Biological Term Annotations biological terms co-occuring with MIR181A1 gene in literature-supported statements describing functions of genes from the GeneRIF Biological Term Annotations dataset.
GeneSigDB Published Gene Signatures PubMedIDs of publications reporting gene signatures containing MIR181A1 from the GeneSigDB Published Gene Signatures dataset.
GEO Signatures of Differentially Expressed Genes for Kinase Perturbations kinase perturbations changing expression of MIR181A1 gene from the GEO Signatures of Differentially Expressed Genes for Kinase Perturbations dataset.
GEO Signatures of Differentially Expressed Genes for Small Molecules small molecule perturbations changing expression of MIR181A1 gene from the GEO Signatures of Differentially Expressed Genes for Small Molecules dataset.
JASPAR Predicted Transcription Factor Targets transcription factors regulating expression of MIR181A1 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Transcription Factor Targets dataset.
Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene CNV Profiles cell lines with high or low copy number of MIR181A1 gene relative to other cell lines from the Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene CNV Profiles dataset.
KnockTF Gene Expression Profiles with Transcription Factor Perturbations transcription factor perturbations changing expression of MIR181A1 gene from the KnockTF Gene Expression Profiles with Transcription Factor Perturbations dataset.
MotifMap Predicted Transcription Factor Targets transcription factors regulating expression of MIR181A1 gene predicted using known transcription factor binding site motifs from the MotifMap Predicted Transcription Factor Targets dataset.
Roadmap Epigenomics Histone Modification Site Profiles histone modification site profiles with high histone modification abundance at MIR181A1 gene from the Roadmap Epigenomics Histone Modification Site Profiles dataset.
WikiPathways Pathways 2014 pathways involving MIR181A1 protein from the Wikipathways Pathways 2014 dataset.