Differential fractal dimension is associated with extracellular matrix remodeling in developing bovine corpus luteum.

Autor: Fávero PF; University of Western São Paulo (Unoeste), Presidente Prudente, São Paulo, Brazil., Vieira de Lima VA; University of Western São Paulo (Unoeste), Presidente Prudente, São Paulo, Brazil., Helena Dos Santos P; Department of Pharmacology, Institute of Biosciences, University of São Paulo State, (Unesp), Botucatu, São Paulo, Brazil., Marques Andrade AP; University of Western São Paulo (Unoeste), Presidente Prudente, São Paulo, Brazil., Mendes LO; University of Western São Paulo (Unoeste), Presidente Prudente, São Paulo, Brazil., Pacagnelli FL; University of Western São Paulo (Unoeste), Presidente Prudente, São Paulo, Brazil., César de Souza Castilho A; University of Western São Paulo (Unoeste), Presidente Prudente, São Paulo, Brazil. Electronic address: castilho.anthony@gmail.com.
Jazyk: angličtina
Zdroj: Biochemical and biophysical research communications [Biochem Biophys Res Commun] 2019 Aug 27; Vol. 516 (3), pp. 888-893. Date of Electronic Publication: 2019 Jun 30.
DOI: 10.1016/j.bbrc.2019.06.002
Abstrakt: To assist in evaluating and quantifying tissue changes, fractal dimension (FD) is a useful method for assessing the organization in an image from fractals that describes the amount of space and the self-similarity of the structure, once FD detects subtle morphological changes and performs functional quantitative measures. Here, we hypothesized that fractal analysis may be different in functional and regressing bovine corpus luteum (CL) and may be correlated with differential expression of genes involved in extracellular matrix remodeling. CL presents two developmental stages, the functional and regressing CL, according to progesterone levels and morphology. First, we found a lower FD in functional CL using HE staining and picrosirius red approach. Additionally, we found a great amount of total collagen in regressing CL. Regarding gene expression, we showed an up regulation of COL1A1, COL1A2, MMP2, and MMP14 and a down regulation of TIMP1 and TIMP2 in regressing CL compared to the functional one. Thus, we concluded that differential FD observed during luteal regression is an effective method to evaluate the tissue changes observed during luteal development in cattle and is related to differential quantity of genes involved in extracellular matrix remodeling.
(Copyright © 2019 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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