NDLI: Marasmius oreades substances block NF-κB activity through interference with IKK activation pathway

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Marasmius oreades substances block NF-κB activity through interference with IKK activation pathway

Content Provider	Springer Nature Link
Author	Petrova, Roumyana D. Mahajna, Jamal Wasser, Solomon P. Ruimi, Nili Denchev, Cvetomir M. Sussan, Sherbel Nevo, Eviatar Reznick, Abraham Z.
Copyright Year	2008
Abstract	The activation pathway of nuclear transcription factor kappa B (NF-κB) is a key mechanism for the progression of carcinogenesis at the molecular level. NF-κB is related to the promotion of cell proliferation, inhibition of apoptosis, and the enhancement of tumor metastasis and angiogenesis. Marasmius oreades culture liquid extract, which was previously shown to affect NF-κB activation through inhibition of the phosphorylation of the inhibitory protein kappa B (IκBα), was subjected to liquid chromatography in order to investigate the specific mechanism of action of the active moieties present in the extract. Four fractions were obtained and tested for their abilities to block NF-κB activation pathway at different molecular levels. All fractions showed an anti-proliferative potential with no apparent cytotoxicity on MCF7 breast cancer cell line. Two out of the four fractions strongly affected the phosphorylation of IκBα and the NF-κB reporter activity in MCF7 breast cancer cell line. In addition, these two fractions prevented the p65 nuclear translocation and seemed to interfere with the IκB kinase (IKK) activation pathway. The IKK pathway is a major cellular signaling pathway set at a crossroad leading to NF-κB activation by a variety of stimuli. Also, these two fractions induced apoptosis of MCF7 cells. This study adds additional valuable data to our knowledge on the anticancer potential of fungal metabolites. It is the first report showing the medicinal value of M. oreades as a natural source of low-molecular-weight bioactive substances able to affect the process of tumorogenesis through the direct blockage of NF-κB activation at the IKK level.
Starting Page	737
Ending Page	744
Page Count	8
File Format	PDF
ISSN	03014851
Journal	Molecular Biology Reports
Volume Number	36
Issue Number	4
e-ISSN	15734978
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-04-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	IκBα phosphorylation IKK complex Marasmius oreades metabolites NF-κB activation pathway p65 nuclear translocation Animal Biochemistry Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology

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