The classical progesterone receptor mediates the rapid reduction of fallopian tube ciliary beat frequency by progesterone

Reproductive Biology and Endocrinology

Research

DG Joakim Larsson¹  Mattias Goksör²  Karin Lind³  Anna Bylander³  Håkan Billig³ 

[1] Department of Infectious Diseases, Institute of Biomedicine, the Sahlgrenska academy, University of Gothenburg, 10, SE-413 46, Guldhedsgatan, Göteborg, Sweden;Department of Physics, University of Gothenburg, SE-412 96, Göteborg, Sweden;Institute of Neuroscience and Physiology, the Sahlgrenska Academy , University of Gothenburg, SE-405 30, Göteborg, Sweden;

关键词: Progesterone;    Fallopian tube;    Ciliated cell;    Rapid response;    Nuclear progesterone receptor;   

DOI  :  10.1186/1477-7827-11-33

 received in 2012-10-03, accepted in 2013-04-29,  发布年份 2013

来源: Springer

【 摘 要 】

BackgroundThe transport of gametes as well as the zygote is facilitated by motile cilia lining the inside of the fallopian tube. Progesterone reduces the ciliary beat frequency within 30 minutes in both cows and mice. This rapid reduction suggest the involvement of a non-genomic signaling mechanism, although it is not known which receptors that are involved. Here we investigated the possible involvement of the classical progesterone receptor in this process.MethodThe ciliary beat frequency of mice fallopian tube was measured ex vivo using an inverted bright field microscope and a high speed camera. The effects of the agonists progesterone and promegestone and an antagonist, mifeprestone, were investigated in wildtype mice. The effect of progesterone was also investigated in mice lacking the classical progesterone receptor.ResultsProgesterone, as well as the more specific PR agonist promegestone, significantly reduced the CBF at concentrations of 10–100 nanomolar within 10–30 minutes. In the absence of progesterone, the PR antagonist mifeprestone had no effect on the ciliary beat frequency at a concentration of 1 micromolar. When ciliated cells were pre-incubated with 1 micromolar mifeprestone, addition of progesterone did not reduce the ciliary beat frequency. Accordingly, in ciliated cells from mice not expressing the classical progesterone receptor, exposure to 100 nanomolar progesterone did not reduce the ciliary beat frequency.ConclusionsThis is the first study to provide comprehensive evidence that the classical progesterone receptor mediates the rapid reduction of the tubal ciliary beat frequency by progesterone.

【 授权许可】

Unknown   
© Bylander et al.; licensee BioMed Central Ltd. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.