Structure-function study of gemini derivatives with two different side chains at C-20, Gemini-0072 and Gemini-0097.
Fiche publication
Date publication
janvier 2011
Auteurs
Membres identifiés du Cancéropôle Est :
Dr MORAS Dino, Dr ROCHEL-GUIBERTEAU Natacha
Tous les auteurs :
Huet T, Maehr H, Lee HJ, Uskokovic MR, Suh N, Moras D, Rochel N
Lien Pubmed
Résumé
Derivatives of vitamin D(3) containing a second side-chain emanating at C-20 are known as gemini and act as vitamin D receptor agonists. Recently, two of these, namely Gemini-0072 and the epimeric Gemini-0097, were selected for further studies in view of their high biological activities and lack of hypercalcemic effects. We now show that the two analogs recruit coactivator SRC-1 better than the parental gemini and act as VDR superagonists. The crystal structures of complexes of zVDR with Gemini-0072 and Gemini-0097 indicate that these ligands induce an extra cavity within the ligand-binding pocket similar to gemini and that their superagonistic activity is due to an increased stabilization of helix H12.
Référence
Medchemcomm. 2011;2(5):424-429.