alexa Synthetic genistein glycosides inhibiting EGFR phosphorylation enhance the effect of radiation in HCT 116 colon cancer cells.
Gastroenterology

Gastroenterology

Journal of Liver

Author(s): Gruca A, Krawczyk Z, Szeja W, Grynkiewicz G, Rusin A

Abstract Share this page

Abstract The need to find new EGFR inhibitors for use in combination with radiotherapy in the treatment of solid tumors has drawn our attention to compounds derived from genistein, a natural isoflavonoid. The antiproliferative potential of synthetic genistein derivatives used alone or in combination with ionizing radiation was evaluated in cancer cell lines using clonogenic assay. EGFR phosphorylation was assessed with western blotting. Genistein derivatives inhibited clonogenic growth of HCT 116 cancer cells additively or synergistically when used in combination with ionizing radiation, and decreased EGFR activation. Our preclinical evaluation of genistein-derived EGFR inhibitors suggests that these compounds are much more potent sensitizers of cells to radiation than the parent isoflavonoid, genistein and indicate that these compounds may be useful in the treatment of colon cancer with radiation therapy. This article was published in Molecules and referenced in Journal of Liver

Relevant Expert PPTs

Relevant Speaker PPTs

  • Ping Gu
    Myeloid-specific deletion of SIRT1 impairs obesity and ageing-associated endothelial dysfunction
    PPT Version | PDF Version
  • George Rawitscher
    Revival of the phase-amplitude description of a quantum-mechanical wave function
    PDF Version
  • Tina Cloney
    Behavioral change strategies conducive to reducing rates of disease and disability and promoting rehabilitation and daily functioning
    PPT Version | PDF Version
  • Masayuki Fukata
    Innate immune regulation of T-helper (Th) cell homeostasis in the intestine
    PPT Version | PDF Version
  • Hasan Arman
    Slake durability test on lower oligocene limestones from Al Ain City, United Arab Emirates
    PDF Version
  • Khalid Bashar
    Predictive parameters of arterio-venous fistula functional maturation in a population of patients with end-stage renal disease
    PPT Version | PDF Version
  • Jahid Zeghiche
    Jahid-Zeghiche-Univesity-of-Al-Baha- Saudi-Arabia- Further-tests-on-thin-steel-and-composite-fabricated-stubs
    PPT Version | PDF Version
  • Cormac G M Gahan
    Bacterial bile salt hydrolase in the regulation of host lipid metabolism and circadian rhythm: A role in probiotic function?
    PPT Version | PDF Version
  • Beste Cubukcuoglu
    Beste-Cubukcuoglu-Antalya-International-University-Turkey-The-environmental-impact-evaluation-and-testing-of-sustainable-inorganic-binders-A-green-alternative-to-ordinary-Portland-cement
    PPT Version | PDF Version
  • Tjale Mahopo
    Impact of infant feeding practices on gut function in Dzimauli community, South Africa
    PDF Version
  • Keiko Unno
    Prevention of cognitive dysfunction and amyloid beta accumulation by the ingestion of green soybean extract in aged mice
    PDF Version
  • Francois Blachier
    Hyperproteic diet, intestinal microbiota, and colonic epithelium: The dangerous relationships
    PDF Version
  • Fathia El Sharkawi
    The effect of PTEN and TRAIL genes loaded on nanoparticles on hepatocellular carcinoma
    PPT Version | PDF Version
  • Chia-chi Liu
    Oxidative inhibition of erythrocyte sodium pump: A functionally relevant circulating marker of oxidative stress
    PPT Version | PDF Version
  • Yosef Yarden
    Classically, the 3’untranslated region (3’UTR) is that region in eukaryotic protein-coding genes from the translation termination codon to the polyA signal. It is transcribed as an integral part of the mRNA encoded by the gene. However, there exists another kind of RNA, which consists of the 3’UTR alone, without all other elements in mRNA such as 5’UTR and coding region. The importance of independent 3’UTR RNA (referred as I3’UTR) was prompted by results of artificially introducing such RNA species into malignant mammalian cells. Since 1991, we found that the middle part of the 3’UTR of the human nuclear factor for interleukin-6 (NF-IL6) or C/EBP gene exerted tumor suppression effect in vivo. Our subsequent studies showed that transfection of C/EBP 3’UTR led to down-regulation of several genes favorable for malignancy and to up-regulation of some genes favorable for phenotypic reversion. Also, it was shown that the sequences near the termini of the C/EBP 3’UTR were important for its tumor suppression activity. Then, the C/EBP 3’UTR was found to directly inhibit the phosphorylation activity of protein kinase CPKC in SMMC-7721, a hepatocarcinoma cell line. Recently, an AU-rich region in the C/EBP 3’UTR was found also to be responsible for its tumor suppression. Recently we have also found evidence that the independent C/EBP 3’UTR RNA is actually exists in human tissues, such as fetal liver and heart, pregnant uterus, senescent fibroblasts etc. Through 1990’s to 2000’s, world scientists found several 3’UTR RNAs that functioned as artificial independent RNAs in cancer cells and resulted in tumor suppression. Interestingly, majority of genes for these RNAs have promoter-like structures in their 3’UTR regions, although the existence of their transcribed products as independent 3’UTR RNAs is still to be confirmed. Our studies indicate that the independent 3’UTR RNA is a novel non-coding RNA species whose function should be the regulation not of the expression of their original mRNA, but of some essential life activities of the cell as a whole.
    PPT Version | PDF Version

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords