Receptor Binding of 6α-Methylprogesterone in Mouse Kidney

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Abstract

6α-Methylprogesterone (6MP) is an androgenic progestin that binds to the androgen receptor. However, results from an in vivo study suggested that 6MP was also bound by a second receptor. In the present study, we found that 6MP was bound in kidney cytosol from adrenalectomized/ovariectomized female mice as well as Tfm/Y mice, which lack androgen receptors. 6MP was bound with high affinity (K<sub>d</sub> = 1.2 × 10<sup>-8</sup> M)by a binder that was present in 7-8 times greater concentration than the androgen receptor and had the specificity of a glucocorticoid receptor. 6MP was bound with similar specificity in liver cytosol. These data indicate that, despite its androgenic effects, 6MP binds primarily to a glucocorticoid receptor in mouse kidney.

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Author and article information

Journal

Journal ID (publisher-id): HRE

Journal ID (nlm-ta): Horm Res Paediatr

Journal ID (doi): 10.1159/issn.1663-2818

Title: Hormone Research in Paediatrics

Publisher: S. Karger AG

ISSN (Print): 1663-2818

ISSN (Electronic): 1663-2826

Publication date Subscription-year: 1985

Publication date (Print): 1985

Publication date (Electronic): 26 November 2008

Volume: 21

Issue: 4

Pages: 261-269

Affiliations

Department of Medicine, Section of Endocrinology, Tufts University, School of Veterinary Medicine, Boston, Mass., USA

Article

Publisher ID: 180059 Other ID: Horm Res 1985;21:261–269

DOI: 10.1159/000180059

PubMed ID: 4007785

SO-VID: 0d23385e-44fb-47ad-aaf9-534c604e52ce

License:

Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

History

Date received : 20 June 1984

Date accepted : 06 November 1984

Page count

Pages: 9

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