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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/11625
Title: Binding capacity of ER-α, ligands and SERMs: Comparison of the human, dog and cat
Authors: Waraphan Toniti
Nareuthorn Suthiyotha
Pranom Puchadapirom
Ekachai Jenwitheesuk
Mahidol University
Thailand National Science and Technology Development Agency
Keywords: Biochemistry, Genetics and Molecular Biology;Medicine
Issue Date: 1-Jan-2011
Citation: Asian Pacific Journal of Cancer Prevention. Vol.12, No.11 (2011), 2875-2879
Abstract: The estrogen molecule is the major risk factor related to mammary gland tumors, with estrogen receptor alpha (ER-α) as the important target stimulating growth. Therefore one alternative approach to treatment of breast cancer is to use selective estrogen receptor modulator (SERM), hormonal therapy. In this study, the structures of ER-α in humans, dogs and cats were predicted using the amino acid sequencing data bank and corrected for general protein structures, receptor sites and docking by adding 2,344 ligands with 15 SERMs into the database and calculating estimated inhibition constants (Ki). Thereby, ranking of best ligands of SERMs in humans, dogs and cats could be achieved. The results show that the shapes of ER-α differ between species but the major pocket sites are the same. Bazedoxifene, a new SERM proved to be the best estrogen antagonist and ER-α inhibitor in all species (human, dog, cat) with the lowest Ki. The other good ligands for dogs and cats are Neohesperidin, Dihydrochalcone, and Schreiber2. The differences in these protein structures may explain why there are only a few SERMs or other ligands which can be used as anti-cancer drugs.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84863336478&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/11625
ISSN: 2476762X
15137368
Appears in Collections:Scopus 2011-2015

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