Tamoxifen-induced alterations in the expression of selected matrix metalloproteinases (MMP-2, -9, -10, and −13) and their tissue inhibitors (TIMP-2 and -3) in the chicken ovary

Dominika Wolak , Anna Hrabia


Matrix metalloproteinases (MMPs) are a family of peptidases that disintegrate extracellular matrix (ECM) molecules associated with tissue remodeling, including reproductive tissues. Their actions are largely controlled by specific tissue inhibitors of MMPs (TIMPs). The role and regulation of MMPs in the chicken ovary is largely unknown. The aim of the present study was to examine the effect of tamoxifen (TMX; estrogen receptor modulator) treatment on the expression of selected members of the MMP system in the laying hen ovary. The activity of MMP-2 and -9 was also examined. Real-time polymerase chain reaction and western blot analyses revealed changes in mRNA and/or protein expression of MMP-2, -9, -10, −13, TIMP-2, and TIMP-3 in the following ovarian follicles after TMX treatment: white (WF), yellowish (YF), small yellow (SYF), and the largest yellow preovulatory (F3–F1). The response to TMX depended on the stage of follicle development and the layer of follicular wall. Moreover, ovarian regression following TMX treatment was accompanied by both an increase in total activity of MMP-2 in the theca layer of F3–F2 and granulosa layer of F2, and a decrease in total activity of MMP-2 in the WF, YF, and SYF, and MMP-9 in theca of F3–F1. In conclusion, the TMX-induced changes in MMP-2, -9, -10, and -13, and TIMP-2 and -3 mRNA expression, as well as MMP-2 and -9 activity, were dependent on tissue and the stage of follicular maturation. Our findings strongly suggests a role for estrogen in regulating the transcription, translation, and/or posttranslational activity of members of the MMP system. Further, these components may be involved in the orchestration of ECM turnover and cellular functions during ovary regression, which occur under conditions of reduced estrogenic activity.
Author Dominika Wolak (FoAS / DoAPaE)
Dominika Wolak,,
- Department of Animal Physiology and Endocrinology
, Anna Hrabia (FoAS / Department of Animal Physiology and Endocrinology)
Anna Hrabia,,
- Department of Animal Physiology and Endocrinology
Journal seriesTheriogenology, ISSN 0093-691X, e-ISSN 1879-3231, (N/A 140 pkt)
Issue year2020
Publication size in sheets0.5
Keywords in EnglishMMPs, TIMPs, Tamoxifen, Ovary, Chicken
ASJC Classification3402 Equine; 3403 Food Animals; 3404 Small Animals; 1103 Animal Science and Zoology
URL https://www.sciencedirect.com/science/article/abs/pii/S0093691X19305084?via%3Dihub
Languageen angielski
Score (nominal)140
Score sourcejournalList
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.338; WoS Impact Factor: 2018 = 2.299 (2) - 2018=2.316 (5)
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