Spatio-temporal expression profile of matrix metalloproteinase (Mmp) modulators Reck and Sparc during the rat ovarian dynamics

Matrix metalloproteinases (Mmps) and their tissue inhibitors (Timps) are widely recognized as crucial factors for extracellular matrix remodeling in the ovary and are involved in follicular growth, ovulation, luteinization, and luteolysis during the estrous cycle. Recently, several genes have been a...

Full description

Saved in:

Bibliographic Details
Published in:	Reproductive biology and endocrinology Vol. 16; no. 1; p. 116
Main Authors:	Levin, Gabriel, Coelho, Tatiane Maldonado, Nóbrega, Nathali Guimarães, Trombetta-Lima, Marina, Sogayar, Mari Cleide, Carreira, Ana Claudia Oliveira
Format:	Journal Article
Language:	English
Published:	England BioMed Central Ltd 13-11-2018 BioMed Central BMC
Subjects:	Animals Basigin - genetics Basigin - metabolism Blood Proteins - genetics Blood Proteins - metabolism Cancer Cattle CD147 antigen Corpus luteum Estrous Cycle - genetics Estrus cycle Extracellular matrix Female Folliculogenesis Gelatinase A Gelatinase B Gene expression Gene Expression Profiling Genetic aspects GPI-Linked Proteins - genetics GPI-Linked Proteins - metabolism Homeostasis Immunohistochemistry Immunomodulation Matrix metalloproteinase Matrix Metalloproteinases - genetics Matrix Metalloproteinases - metabolism Menstrual cycle Metalloproteinase Mmps system Osteonectin Osteonectin - genetics Osteonectin - metabolism Ovarian cancer Ovaries Ovary - metabolism Ovary remodeling Ovulation Ovulation - genetics Physiological aspects Proteases Protein expression Proteins Rats, Sprague-Dawley Reck Rodents Sexual Maturation - genetics Sparc Time Factors Tissue inhibitor of metalloproteinase 2 Tissue Inhibitor of Metalloproteinases - genetics Tissue Inhibitor of Metalloproteinases - metabolism Tumor Suppressor Proteins - genetics Tumor Suppressor Proteins - metabolism Brazil Extracellular matrix Sparc Folliculogenesis Reck Mmps system Ovary remodeling
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Matrix metalloproteinases (Mmps) and their tissue inhibitors (Timps) are widely recognized as crucial factors for extracellular matrix remodeling in the ovary and are involved in follicular growth, ovulation, luteinization, and luteolysis during the estrous cycle. Recently, several genes have been associated to the modulation of Mmps activity, including Basigin (Bsg), which induces the expression of Mmps in rat ovaries; Sparc, a TGF-β modulator that is related to increased expression of Mmps in cancer; and Reck, which is associated with Mmps inhibition. However, the expression pattern of Mmp modulators in ovary dynamics is still largely uncharacterized. To characterize the expression pattern of Mmps network members in ovary dynamics, we analyzed the spatio-temporal expression pattern of Reck and Sparc, as well as of Mmp2, Mmp9 and Mmp14 proteins, by immunohistochemistry (IHC), in pre-pubertal rat ovaries obtained from an artificial cycle induced by eCG/hCG, in the different phases of the hormone-induced estrous cycle. We also determined the gene expression profiles of Mmps (2, 9, 13 14), Timps (1, 2, 3), Sparc, Bsg, and Reck to complement this panel. IHC analysis revealed that Mmp protein expression peaks at the early stages of folliculogenesis and ovulation, decreases during ovulation-luteogenesis transition and luteogenesis, increasing again during corpus luteum maintenance and luteolysis. The protein expression patterns of these metalloproteinases and Sparc were inverse relative to the pattern displayed by Reck. We observed that the gene expression peaks of Mmps inhibitors Reck and Timp2 were closely paraleled by Mmp2 and Mmp9 suppression. The opposite was also true: increased Mmp2 and Mmp9 expression was concomitant to reduced Reck and Timp2 levels. Therefore, our results generate a spatio-temporal expression profile panel of Mmps and their regulators, suggesting that Reck and Sparc seem to play a role during ovarian dynamics: Reck as a possible inhibitor and Sparc as an inducer of Mmps.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1477-7827 1477-7827
DOI:	10.1186/s12958-018-0422-2