Effects of angiotensin II, atrial natriuretic peptide and endothelin-1 on proliferation and steroidogenic output of bovine granulosa cells cultured in a chemically defined system

Montrezor, Luís Henrique; Piccinato, Carla de Azevedo; Collares, Cristhianna Viesti Advincula; Vireque, A.A.; Silva, A.A.M. Rosa e

doi:10.1016/j.anireprosci.2014.11.013

Cited by 10 publications

(5 citation statements)

References 41 publications

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“…The increase in the NPR1 mRNA abundance near ovulation observed in this study corroborates with previous studies that demonstrated an effect of ANP on steroidogenesis and corpus luteum formation (Acosta et al., ; Kobayashi et al., ; Montrezor et al., ). However, we did not observe changes in NPR2 mRNA expression after GnRH injection, which differs from previous findings in polyovulatory species showing that LH signalling decreases NPR2 expression in cumulus and granulosa cells (Kawamura et al., ; Lee et al., ; Tsuji et al., ; Zhang et al., , ).…”

Section: Discussionsupporting

confidence: 93%

“…Despite those previous studies, the role of the NP system in the regulation of reproductive functions in monovulatory species has not been totally elucidated. Studies in cattle suggested that ANP increases prostaglandins and angiotensin II production in mature follicles and modulates steroidogenesis in follicular cells in vivo and in vitro (Acosta et al, 1999;Montrezor, Piccinato, Collares, Vireque, & Silva, 2015). Moreover, Franciosi et al (2014) demonstrated that CNP can delay oocyte meiotic resumption and maintain cumulus-oocyte communication in bovine cumulus-oocyte complexes (COCs).…”

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confidence: 99%

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Natriuretic peptide system regulation in granulosa cells during follicle deviation and ovulation in cattle

Cesaro

Santos

Ferst

et al. 2018

Reprod Domestic Animals

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Natriuretic peptides (NPs) are known to regulate reproductive events in polyovulatory species, but their function and regulation in monovulatory species remain to be fully characterized. Using a well-established in vivo model, we found that bovine granulosa cells from follicles near the deviation stage express mRNA for the three NP receptors (NPR1, NPR2 and NPR3), but not for NP precursors (NPPA, NPPB and NPPC). The abundance of NPR3 mRNA was higher in dominant compared to subordinate follicles at the expected time of follicular deviation. After deviation, mRNA for all NP receptors was significantly more abundant in the dominant follicle. Intrafollicular inhibition of oestrogen receptors downregulated NPR1 mRNA in dominant follicles. In granulosa cells from preovulatory follicles, NPPC mRNA increased at 3 and 6 h after systemic GnRH treatment, but decreased at 12 and 24 h to similar levels observed in samples collected at 0 h. After GnRH treatment, NPR1 mRNA was upregulated at 24 h, NPR3 mRNA gradually decreased after 3 h, while NPR2 mRNA was not regulated. The mRNA expression of the enzyme FURIN increased at 24 h after GnRH treatment. These findings revealed that the expression of mRNA encoding important components of the NP system is regulated in bovine granulosa cells during follicular deviation and in response to GnRH treatment, which suggests a role of NP system in the modulation of these processes in monovulatory species.

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Section: Discussionsupporting

confidence: 93%

mentioning

confidence: 99%

Natriuretic peptide system regulation in granulosa cells during follicle deviation and ovulation in cattle

Cesaro

Santos

Ferst

et al. 2018

Reprod Domestic Animals

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“…Angiotensin II (ATII) is implicated to play a role in ovulation, particularly at the early stage of follicular maturation and atresia (Ferreira et al , ; Alphan et al , ; El‐Mesallamy et al , ). Angiotensin II exerts its actions via ATII receptor 2 (ATII‐Rc‐2) (de Gasparo et al , ) that exists on mouse (Nag et al , ), rat (Leblanc et al , ), bovine (Montrezor et al , ) and human (Reis et al , ) ovaries. It was reported that ATII is upregulated in the ovaries of women with polycystic ovary syndrome (PCOS) (Hacihanefioglu et al , ), which is an endocrine disorder that has numerous predominant follicles (Hefler and Gregg, ; Franks et al , ).…”

Section: Introductionmentioning

confidence: 99%

Induction of multiple ovulation via modulation of angiotensin II receptors in in vitro ovarian follicle culture models

Kim

Kang

et al. 2016

J Tissue Eng Regen Med

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In vitro culture of ovarian follicles is a promising bioengineering technique for retrieving fertilizable oocytes from preserved ovarian tissues of cancer survivors. However, current in vitro follicle culture techniques are labour-intensive and of low efficiency, as only single follicle culture (SFC) has been possible to date. The present study investigated the feasibility of multifollicular cluster culture (MFCC) system using angiotensin II receptor (ATII-Rc) analogues. Ovarian pre-antral follicles isolated from 2-week-old C57BL6 mice were cultured with ATII-Rc agonist or antagonist and their maturation outcomes were compared with control group. When single follicles were cultured, the ovulation and maturation rates were similar in all three groups. When three-follicle clusters were cultured, up to three follicles were ovulated in the ATII-Rc agonist group while none or one follicle ovulated in control or antagonist groups (p < 0.0001). Significantly higher numbers of mature oocytes were obtained in the agonist group (three-follicle 28.2 ± 4.9 vs. SFC 11.0 ± 1.3, per 25 cultured droplets) (p < 0.0001), and the development of each fertilized oocytes was comparable to those from SFC. It is therefore concluded that this novel MFCC system can significantly improve the efficiency of in vitro mature oocyte retrieval via ATII-Rc modulation. Copyright © 2016 John Wiley & Sons, Ltd.

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“…The IGF-1 is a potent mitogen and stimulates the mitosis of cultured theca and GC; it increased the synthesis of bovine follicle androgens and E2, and modulates gonadotropin action on those cells (Ginther et al , 2001). The use of IGF-1 in granulosa cell culture of bovine ovarian follicles retained structures and functional characteristics of such cells when challenged with atrial natriuretic peptide (ANP), endothelin-1 (END-1) and angiotensin II (Ang II) (Montrezor et al , 2015). Because we did not use FSH in culture, we suggest that the steroidogenic effects on the oocyte cells and oocyte development were dependent on IGF-1 after 3 h of culture both for oocytes obtained from females with a regular diet as well as for females who underwent food restriction.…”

Section: Discussionmentioning

confidence: 99%

Feed restriction and insulin-like growth factor-I (IGF-I) affect the oocyte maturation in matrinxãBrycon amazonicus

Montrezor

Urbinati

2016

Zygote

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The feeding and nutrition of breeders are crucial aspects in the reproductive process. During the maturation period, metabolic changes occur aiming at mobilizing energy for growth and follicular development. The involvement of IGF-1 in metabolic and reproductive events is important. The aim of this work was to evaluate if alternate feed restriction and re-feeding have permissive effects on in vitro actions of IGF-1 on oocytes development of matrinxã. In vivo experiments were performed during vitellogenesis period. Females (n = 60) were fed with a commercial feed (2% of biomass) and they were divided into two treatments: fish receiving food daily (control - fed), and fish submitted to cycles of 3 days of feed restriction and 2 days of re-feeding (no-fed group). For the in vitro experiments, oocytes (n = 20) were obtained from the ovaries removed at the end of the in vivo experiment and were divided into four groups: fed -IGF-1; fed +IGF-1; no-fed -IGF-1 and no-fed +IGF-1. Fish under restriction had lower body weights, decreased plasma glucose, increased triglycerides levels, and their final maturation and mature oocyte were reduced and the atresic ones were in higher number. Moreover, IGF-1, in vitro, increased the percentage of mature oocytes in fed females and decreased the atresic ones. In no-fed females, IGF-1 increased the final maturation and mature oocytes and reduced the atresic ones. This study demonstrates the importance of the feeding management of female breeders of matrinxã during the vitellogenesis period.

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Effects of angiotensin II, atrial natriuretic peptide and endothelin-1 on proliferation and steroidogenic output of bovine granulosa cells cultured in a chemically defined system

Cited by 10 publications

References 41 publications

Natriuretic peptide system regulation in granulosa cells during follicle deviation and ovulation in cattle

Natriuretic peptide system regulation in granulosa cells during follicle deviation and ovulation in cattle

Induction of multiple ovulation via modulation of angiotensin II receptors in in vitro ovarian follicle culture models

Feed restriction and insulin-like growth factor-I (IGF-I) affect the oocyte maturation in matrinxãBrycon amazonicus

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