Article citationsMore>>
Tan, Q., Birzin, E.T., Chan, W., Yang, Y.T., Pai, L.Y., Hayes, E.C., DaSilva, C.A., DiNinno, F., Rohrer, S.P., Schaeffer, J.M. and Hammond, M.L. (2004) Estrogen receptor ligands. Part 5: The SAR of dihydrobenzoxathiins containing modified basic side chains. Bioorganic & Medicinal Chemistry Letters, 14, 3747-3751.
doi:10.1016/j.bmcl.2004.04.100
has been cited by the following article:
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TITLE:
More Stable, More Estrogenic: The SERM-ERα LBD Complex
AUTHORS:
Li Gao, Yaoquan Tu, Leif A. Eriksson
KEYWORDS:
Breast Cancer; Tamoxifen Resistance; Molecular Dynamics Simulations;
Dihydrobenzoxathiin; SERM
JOURNAL NAME:
Journal of Biophysical Chemistry,
Vol.2 No.3,
August
9,
2011
ABSTRACT: Many synthetic selective estrogen receptor modulators (SERMs) have been cocrystallized with the human estrogen receptor α ligand binding domain (ERα LBD). Despite stabilizing the same canonical inactive conformation of the LBD, most SERMs display different ligand-dependent pharmacological profiles. We show here that increased partial agonism of SERMs is associated with increased conformational stability of the SERM-LBD complexes, by investigation of dihydrobenzoxathiin-based SERMs using molecular modelling techniques. Analyses of tamoxifen (TAM) and 4-hydroxytamoxifen (OHT) in complex with the LBD furthermore indicates that the conversion of TAM to OHT increases both the affinity to ERα and the partial agonism of the anti-cancer drug, which provides a plausible explanation of the counterintuitive results of TAM therapy.
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