Molecular mechanisms of regulation of uterine leiomyoma growth
- Authors: Antsiferova Y.S.1, Voronin D.N.1, Sotnikova N.Y.1, Malyshkina A.I.1
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Affiliations:
- Ivanovo Research Institute of Maternity and Childhood named V.N. Gorodkov
- Issue: Vol 66, No 4 (2017)
- Pages: 7-13
- Section: Articles
- URL: https://journals.rcsi.science/jowd/article/view/6913
- DOI: https://doi.org/10.17816/JOWD6647-13
- ID: 6913
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Abstract
Background: to elucidate the molecular mechanisms, regulating growth and proliferation of leiomyoma cells, the estimation of the activity of PR-A and PR-B isoforms of progesterone receptor and PI3K/Akt and MAPК kinases, participating in signal transduction from sex steroids and growth factors, has the special interest.
Aim of the work: to investigate the character of the expression of mRNAs of PR-A and PR-B isoforms of progesterone receptor in leiomyomas of different size and different intensity of cellular proliferation, and to elucidate the relationship between the PR-A and PR-B synthesis and activation of PI3K/Akt and MAPК signaling pathways in tumour tissue.
Materials and Methods. The examination of the PR-A, PR-B, Akt, PTEN, ERK and Ki67 mRNAs expression in normal myometrium and leiomyoma tissues of 29 women with uterine leiomyoma was performed using RP-PCR.
Results. It was found that in general the leiomyoma tissue was characterized by the high level of PR-A, PTEN and ERK mRNAs expression comparing to the miometrium. Distinctive characteristic of the small leiomyomas and leiomyomas with low proliferative activity was the highest synthesis of PR-A isoform of progesterone receptor. In large leiomyomas and in proliferating Ki67+ leiomymas the significant increase of ERK mRNA expression was seen.
Conclusion. Activation of the PR-A isoform of progesterone receptor and MAPK/ERK signaling pathway associated with the inhibition of PI3K/Akt signaling due to high synthesis of PTEN plays the important role in mechanisms, regulating leiomyoma growth.
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##article.viewOnOriginalSite##About the authors
Yulia S. Antsiferova
Ivanovo Research Institute of Maternity and Childhood named V.N. Gorodkov
Author for correspondence.
Email: niimid.immune@mail.ru
BD, senior scientific worker of the laboratory of clinical immunology
Russian Federation, 20, Pobedy street, Ivanovo, 153045Dmitry N. Voronin
Ivanovo Research Institute of Maternity and Childhood named V.N. Gorodkov
Email: niimid.immune@mail.ru
PhD, scientific worker of the laboratory of clinical immunology
Russian Federation, 20, Pobedy street, Ivanovo, 153045Natalya Yu. Sotnikova
Ivanovo Research Institute of Maternity and Childhood named V.N. Gorodkov
Email: niimid.immune@mail.ru
MD, professor, head of the laboratory of clinical immunology
Russian Federation, 20, Pobedy street, Ivanovo, 153045Anna I. Malyshkina
Ivanovo Research Institute of Maternity and Childhood named V.N. Gorodkov
Email: niimid.immune@mail.ru
MD, associate professor, the director
Russian Federation, 20, Pobedy street, Ivanovo, 153045References
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