ArticleScientific reports2017
MicroRNA-449a deficiency promotes colon carcinogenesis.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 15 citations in OpenAlex.
- Discovering Anticancer Effects of Phytochemicals on MicroRNA in the Context of Data Mining.Nutrients · 2025Article
- miR-449, identified through antiandrogen exposure, mitigates functional biomarkers associated with ovarian cancer risk.Scientific reports · 2024Article
- Impact of microRNA variants on PI3K/AKT signaling in triple-negative breast cancer: comprehensive review.Medical oncology (Northwood, London, England) · 2024Review
- Antiandrogen Flutamide-Induced Restoration of miR-449 Expression Mitigates Functional Biomarkers Associated with Ovarian Cancer Risk.medRxiv : the preprint server for health sciences · 2024Article
- S-Adenosylmethionine Inhibits Colorectal Cancer Cell Migration through Mirna-Mediated Targeting of Notch Signaling Pathway.International journal of molecular sciences · 2022Article
- Biomarkers to Detect Early-Stage Colorectal Cancer.Biomedicines · 2022Review
- Review
- Autophagy Upregulates miR-449a Expression to Suppress Progression of Colorectal Cancer.Frontiers in oncology · 2021Article
- Definition of miRNA Signatures of Nodal Metastasis in LCa: miR-449a Targets Notch Genes and Suppresses Cell Migration and Invasion.Molecular therapy. Nucleic acids · 2020Article
- Article
Corrections and comments
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
MicroRNAs have broad roles in tumorigenesis and cell differentiation through regulation of target genes. Notch signaling also controls cell differentiation and tumorigenesis. However, the mechanisms through which Notch mediates microRNA expression are still unclear. In this study, we aimed to identify microRNAs regulated by Notch signaling. Our analysis found that microRNA-449a (miR-449a) was indirectly regulated by Notch signaling. Although miR-449a-deficient mice did not show any Notch-dependent defects in immune cell development, treatment of miR-449a-deficient mice with azoxymethane (AOM) or dextran sodium sulfate (DSS) increased the numbers and sizes of colon tumors. These effects were associated with an increase in intestinal epithelial cell proliferation following AOM/DSS treatment. In patients with colon cancer, miR-449a expression was inversely correlated with disease-free survival and histological scores and was positively correlated with the expression of MLH1 for which loss-of function mutations have been shown to be involved in colon cancer. Colon tissues of miR-449a-deficient mice showed reduced Mlh1 expression compared with those of wild-type mice. Thus, these data suggested that miR-449a acted as a key regulator of colon tumorigenesis by controlling the proliferation of intestinal epithelial cells. Additionally, activation of miR-449a may represent an effective therapeutic strategy and prognostic marker in colon cancer.
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