What question did this study set out to answer?

To evaluate the inhibitory potency, binding mechanisms, and anti-proliferative effects of five novel A- and D-ring modified synthetic steroids targeting aromatase.

August 19, 2008Biological Chemistry

Molecular mechanisms of aromatase inhibition by new A, D-ring modified steroids

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Authors

MCMargarida CepaInstituto Politécnico de Leiria GCGeorgina Correia‐da‐SilvaUniversidade do Porto ESE. J. Tavares da SilvaUniversity of Coimbra

Discussion

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Implication

In vitro study reveals potent and irreversible aromatase inhibition in breast cancer models, suggesting promising scaffolds for anti-cancer drug design.

Key Points

To evaluate the inhibitory potency, binding mechanisms, and anti-proliferative effects of five novel A- and D-ring modified synthetic steroids targeting aromatase.
Assessed anti-aromatase activity across aromatase-expressing cell lines and human placental microsomes.
Conducted kinetic analyses over time alongside site-directed mutagenesis and computer-aided molecular modeling to characterize enzyme-inhibitor interactions.
Measured dose-dependent anti-proliferative effects in hormone-dependent MCF-7aro breast cancer cells.
5alpha-androst-3-en-17-one and 3alpha,4alpha-epoxy-5alpha-androstan-17-one demonstrated the strongest inhibitory activity among the tested compounds.
Both lead compounds induced time-dependent, irreversible inactivation of aromatase through specific interactions at the active site.
Treatment with either lead steroid suppressed the proliferation of hormone-dependent MCF-7aro cells in a dose-dependent manner.

Cite This Study

Cepa et al. (2008) studied this question.

synapsesocial.com/papers/6a77e20a576efb0ddaf7b67f https://doi.org/10.1515/bc.2008.134

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August 19, 2008Biological Chemistry

Molecular mechanisms of aromatase inhibition by new A, D-ring modified steroids

View Full Paper

Ask AI

Bookmark

Authors

MCMargarida CepaInstituto Politécnico de Leiria GCGeorgina Correia‐da‐SilvaUniversidade do Porto ESE. J. Tavares da SilvaUniversity of Coimbra

Discussion

Member takes

Implication

In vitro study reveals potent and irreversible aromatase inhibition in breast cancer models, suggesting promising scaffolds for anti-cancer drug design.

Key Points

To evaluate the inhibitory potency, binding mechanisms, and anti-proliferative effects of five novel A- and D-ring modified synthetic steroids targeting aromatase.
Assessed anti-aromatase activity across aromatase-expressing cell lines and human placental microsomes.
Conducted kinetic analyses over time alongside site-directed mutagenesis and computer-aided molecular modeling to characterize enzyme-inhibitor interactions.
Measured dose-dependent anti-proliferative effects in hormone-dependent MCF-7aro breast cancer cells.
5alpha-androst-3-en-17-one and 3alpha,4alpha-epoxy-5alpha-androstan-17-one demonstrated the strongest inhibitory activity among the tested compounds.
Both lead compounds induced time-dependent, irreversible inactivation of aromatase through specific interactions at the active site.
Treatment with either lead steroid suppressed the proliferation of hormone-dependent MCF-7aro cells in a dose-dependent manner.

Cite This Study

Cepa et al. (2008) studied this question.

synapsesocial.com/papers/6a77e20a576efb0ddaf7b67f https://doi.org/10.1515/bc.2008.134

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