Agonistic and Antagonistic Effects of Progesterone Derivatives on the Transcriptional Activity of Nuclear Progesterone Receptor B in Yeast Model System


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Resumo

Identification of progesterone selective agonists and antagonists that act through one of the nuclear progesterone receptor isoforms is of particular importance for the development of tissue-specific drugs in gynecology and anticancer therapy. Fourteen pregna-D′6- and pregna-D′3-pentarane progesterone derivatives with 16α,17α-cycloalkane groups and two progesterone 3-deoxyderivatives were examined for their ability to regulate transcriptional activity of human nuclear progesterone receptor isoform B (nPR-B) expressed in Saccharomyces cerevisiae yeast. Transcriptional activity of nPR-B was measured from the expression of the β-galactosidase reporter gene with a hormone-responsible element in the promoter. Among the compounds tested, two were full progesterone agonists, four were partial agonists, one compound possessed both agonistic and antagonistic activity, one compound displayed only partial antagonistic activity, and eight compounds did not show any activity. Modifications of the pentarane structure, precisely, introduction of an additional double bound in the A or B rings and/or modification at the 6th position of progesterone, lead to a switch from the complete agonistic activity to partial agonistic or mixed activities. These modifications enable progestins to act as selective modulators of progesterone receptor. Steroids with reduced A-ring and 3-ketogroups lose their ability to regulate PR-B activity. Both 3-deoxycompounds, being selective ligands of progesterone membrane receptors, do not affect PR-B activity.

Sobre autores

A. Michurina

Lomonosov Moscow State University

Email: schelkunova-t@mail.ru
Rússia, Moscow, 119899

A. Polikarpova

Lomonosov Moscow State University

Email: schelkunova-t@mail.ru
Rússia, Moscow, 119899

I. Levina

Zelinsky Institute of Organic Chemistry

Email: schelkunova-t@mail.ru
Rússia, Moscow, 117913

L. Kulikova

Zelinsky Institute of Organic Chemistry

Email: schelkunova-t@mail.ru
Rússia, Moscow, 117913

I. Zavarzin

Zelinsky Institute of Organic Chemistry

Email: schelkunova-t@mail.ru
Rússia, Moscow, 117913

A. Guseva

Lomonosov Moscow State University

Email: schelkunova-t@mail.ru
Rússia, Moscow, 119899

I. Morozov

Engelhardt Institute of Molecular Biology

Email: schelkunova-t@mail.ru
Rússia, Moscow, 119991

P. Rubtsov

Engelhardt Institute of Molecular Biology

Email: schelkunova-t@mail.ru
Rússia, Moscow, 119991

O. Smirnova

Lomonosov Moscow State University

Email: schelkunova-t@mail.ru
Rússia, Moscow, 119899

T. Shchelkunova

Lomonosov Moscow State University

Autor responsável pela correspondência
Email: schelkunova-t@mail.ru
Rússia, Moscow, 119899


Declaração de direitos autorais © Pleiades Publishing, Ltd., 2018

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