ArticleClinical cancer research : an official journal of the American Association for Cancer Research2007
Morin (3,5,7,2',4'-Pentahydroxyflavone) abolishes nuclear factor-kappaB activation induced by various carcinogens and inflammatory stimuli, leading to suppression of nuclear factor-kappaB-regulated gene expression and up-regulation of apoptosis.
Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.
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Who cites it
45 citing papers in PubMed, 1 synthesis or guideline pooled it, 122 citations in OpenAlex.
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- Insulin signaling pathway assessment by enhancing antioxidant activity due to morin using in vitro rat skeletal muscle L6 myotubes cells.Molecular biology reports · 2021Article
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- Genome-wide analysis of the hypoxia-related DNA methylation-driven genes in lung adenocarcinoma progression.Bioscience reports · 2020Article
- Anticancer Potential of Raddeanin A, a Natural Triterpenoid Isolated fromMolecules (Basel, Switzerland) · 2020Review
- Celastrol Alleviates Gamma Irradiation-Induced Damage by Modulating Diverse Inflammatory Mediators.International journal of molecular sciences · 2020Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
purposeMorin is a flavone that exhibits antiproliferative, antitumor, and anti-inflammatory effects through a mechanism that is not well understood. Because of the role of transcription factor nuclear factor-kappaB (NF-kappaB) in the control of cell survival, proliferation, tumorigenesis, and inflammation, we postulated that morin mediates its effects by modulating NF-kappaB activation. EXPERIMENTAL
designWe investigated the effect of morin on NF-kappaB pathway activated by inflammatory agents, carcinogens, and tumor promoters. The effect of this flavone on expression of NF-kappaB-regulated gene products involved in cell survival, proliferation, and invasion was also examined.
resultsWe showed by DNA-binding assay that NF-kappaB activation induced by tumor necrosis factor (TNF), phorbol 12-myristate 13-acetate, lipopolysaccharide, ceramide, interleukin-1, and H(2)O(2) was suppressed by morin; the suppression was not cell type specific. The suppression of NF-kappaB by morin was mediated through inhibition of IkappaBalpha (inhibitory subunit of NF-kappaB) kinase, leading to suppression of phosphorylation and degradation of IkappaBalpha and consequent p65 nuclear translocation. Morin also inhibited the NF-kappaB-dependent reporter gene expression activated by TNF, TNF receptor (TNFR) 1, TNFR1-associated death domain, TNFR-associated factor 2, NF-kappaB-inducing kinase, IkappaB kinase, and the p65 subunit of NF-kappaB. NF-kappaB-regulated gene products involved in cell survival [inhibitor of apoptosis (IAP) 1, IAP2, X chromosome-linked IAP, Bcl-xL, and survivin], proliferation (cyclin D1 and cyclooxygenase-2), and invasion (matrix metalloproteinase-9) were down-regulated by morin. These effects correlated with enhancement of apoptosis induced by TNF and chemotherapeutic agents.
conclusionOverall, our results indicate that morin suppresses the activation of NF-kappaB and NF-kappaB-regulated gene expression, leading to enhancement of apoptosis. This may provide the molecular basis for the ability of morin to act as an anticancer and anti-inflammatory agent.
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