Enhancement of rat spermatozoal hyperactivation by progesterone

Progesterone (P) is a well-known enhancer of hyperactivation which is associated with the success of in vitro fertilization (IVF). In this study, we examined whether P-enhanced hyperactivation affected IVF success in rats. When rat spermatozoa were exposed to 10, 20, and 40 ng/ml P, 20 ng/ml P enhan...

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Main Authors: Yuki MIYAZAWA, Masakatsu FUJINOKI
Format: Article
Language:English
Published: The Society for Reproduction and Development 2023-09-01
Series:The Journal of Reproduction and Development
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jrd/69/5/69_2023-040/_pdf/-char/en
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author Yuki MIYAZAWA
Masakatsu FUJINOKI
author_facet Yuki MIYAZAWA
Masakatsu FUJINOKI
author_sort Yuki MIYAZAWA
collection DOAJ
description Progesterone (P) is a well-known enhancer of hyperactivation which is associated with the success of in vitro fertilization (IVF). In this study, we examined whether P-enhanced hyperactivation affected IVF success in rats. When rat spermatozoa were exposed to 10, 20, and 40 ng/ml P, 20 ng/ml P enhanced hyperactivation via the membrane progesterone receptor. In addition, the enhancement of hyperactivation by 20 ng/ml P was regulated by phospholipase C, transmembrane adenylate cyclase, and protein kinase A. However, 20 ng/ml P did not affect IVF success. These results suggest that 20 ng/ml P enhances rat spermatozoal hyperactivation through non-genomic pathways. Because the concentration of P changes during the estrous cycle, it seems that rat spermatozoa are hyperactivated in response to the oviductal environment. However, the effect of 20 ng/ml P does not seem to fully capacitate spermatozoa.
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spelling doaj.art-9164a28607f14dea88f74d3e58626fcc2023-11-02T00:05:34ZengThe Society for Reproduction and DevelopmentThe Journal of Reproduction and Development0916-88181348-44002023-09-0169527929010.1262/jrd.2023-040jrdEnhancement of rat spermatozoal hyperactivation by progesteroneYuki MIYAZAWA0Masakatsu FUJINOKI1Research Laboratory of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, JapanResearch Laboratory of Laboratory Animals, Research Center for Laboratory Animals, Comprehensive Research Facilities for Advanced Medical Science, School of Medicine, Dokkyo Medical University, Tochigi 321-0293, JapanProgesterone (P) is a well-known enhancer of hyperactivation which is associated with the success of in vitro fertilization (IVF). In this study, we examined whether P-enhanced hyperactivation affected IVF success in rats. When rat spermatozoa were exposed to 10, 20, and 40 ng/ml P, 20 ng/ml P enhanced hyperactivation via the membrane progesterone receptor. In addition, the enhancement of hyperactivation by 20 ng/ml P was regulated by phospholipase C, transmembrane adenylate cyclase, and protein kinase A. However, 20 ng/ml P did not affect IVF success. These results suggest that 20 ng/ml P enhances rat spermatozoal hyperactivation through non-genomic pathways. Because the concentration of P changes during the estrous cycle, it seems that rat spermatozoa are hyperactivated in response to the oviductal environment. However, the effect of 20 ng/ml P does not seem to fully capacitate spermatozoa.https://www.jstage.jst.go.jp/article/jrd/69/5/69_2023-040/_pdf/-char/encapacitationhyperactivationin vitro fertilizationprogesteronespermatozoon
spellingShingle Yuki MIYAZAWA
Masakatsu FUJINOKI
Enhancement of rat spermatozoal hyperactivation by progesterone
The Journal of Reproduction and Development
capacitation
hyperactivation
in vitro fertilization
progesterone
spermatozoon
title Enhancement of rat spermatozoal hyperactivation by progesterone
title_full Enhancement of rat spermatozoal hyperactivation by progesterone
title_fullStr Enhancement of rat spermatozoal hyperactivation by progesterone
title_full_unstemmed Enhancement of rat spermatozoal hyperactivation by progesterone
title_short Enhancement of rat spermatozoal hyperactivation by progesterone
title_sort enhancement of rat spermatozoal hyperactivation by progesterone
topic capacitation
hyperactivation
in vitro fertilization
progesterone
spermatozoon
url https://www.jstage.jst.go.jp/article/jrd/69/5/69_2023-040/_pdf/-char/en
work_keys_str_mv AT yukimiyazawa enhancementofratspermatozoalhyperactivationbyprogesterone
AT masakatsufujinoki enhancementofratspermatozoalhyperactivationbyprogesterone