Cited by 57Reproductive Physiology in LivestockRenin-Angiotensin System StudiesReproductive Biology and Fertility

Molecular characterization and regulation of the angiotensin-converting enzyme type 2/Angiotensin-(1-7)/MAS receptor axis during the ovulation process in cattle

Tonellotto dos Santos, Joabel, Ferreira, Rogério, Gasperin, Bernardo Garziera, Siqueira, Lucas Carvalho, de Oliveira, João Francisco, Santos, Robson AS, Reis, Adelina M, Gonçalves, Paulo Bayard·2012·Journal of the Renin-Angiotensin-Aldosterone System

Abstract

The objective of this study was to characterize the profiles of Ang-(1-7), MAS receptor, ACE 2 , NEP and PEP during the ovulatory process in cattle. For this study, 40 synchronized cows with follicular diameter ≥ 12 mm were ovariectomized at different time-points (0, 3, 6, 12 and 24 h) after i.m. application of gonadotropin-releasing hormone (GnRH) to induce a luteinizing hormone surge. Follicular fluid was collected for measuring Ang-(1-7) by radioimmunoassay. Theca and granulosa cells were isolated from the preovulatory follicles to evaluate the gene expression of MAS receptor, ACE 2 , NEP and PEP by qRT-PCR assay. Cross-contamination between theca and granulosa cells was tested by RT-PCR to detect cytochrome P450 aromatase (CYP19A1) and 17α-hydroxylase (CYP17A1) mRNA. Ang-(1-7) levels were constant until 12 h and then increased ( p < 0.05) at 24 h after GnRH. Messenger RNA expression of MAS, ACE 2 , NEP and PEP was detected in theca and granulosa cells at all time-points after GnRH. In granulosa cells, ACE 2 , NEP and PEP were differentially expressed after GnRH treatment ( p < 0.05). In conclusion, the Ang-(1-7), MAS receptor, ACE 2 , NEP and PEP profiles in preovulatory follicles indicate that Ang-(1-7) plays a role in the regulation of the ovulatory process in cattle.

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Crossref · 10.1177/1470320311417273

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Authors
Tonellotto dos Santos, J., Ferreira, R., Gasperin, B. G., Siqueira, L. C., de Oliveira, J. F., Santos, R. A., Reis, A. M., & Gonçalves, P. B.
Affiliations
  • Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil
  • Universidade Federal de Santa Maria (BR)
  • Universidade Federal de Minas Gerais (BR)
Venue
Journal of the Renin-Angiotensin-Aldosterone System
Published
2011-08-08
Volume
13
Issue
1
Pages
91-98
ISSN
  • 1470-3203 (ISSN-L)
  • 1752-8976
OpenAlex
W2052734884
Cited by
57
References
36
Citations by year
2024: 4 · 2022: 8 · 2021: 9 · 2020: 6 · 2019: 3 · 2018: 5 · 2017: 3 · 2016: 4 · 2015: 4 · 2014: 1 · 2013: 2 · 2012: 6
FWCI
6.78
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the Renin-Angiotensin-Aldosterone System (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Universidade Federal de Santa Maria
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Reproductive Physiology in Livestock
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Biology and Fertility
Keywords
angiotensin-(1-7), Mas receptor, angiotensin-converting enzyme 2, neprilysin, ovulation, preovulatory follicles, theca cells, granulosa cells, follicular fluid, cattle, renin-angiotensin system, gene expression
MeSH terms
Prolyl Oligopeptidases, Angiotensin-Converting Enzyme 2, Proto-Oncogene Mas, Angiotensin I, Animals, Cattle, Female, Gene Expression Regulation, Granulosa Cells, Peptidyl-Dipeptidase A, Ovariectomy, Ovulation, Peptide Fragments, Proto-Oncogene Proteins, RNA, Messenger, Serine Endopeptidases, Theca Cells, Reproducibility of Results, Neprilysin, Signal Transduction, Follicular Fluid, Models, Animal, Receptors, G-Protein-Coupled

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