1
|
Kandil B, Kurtdede N, Bayraktaroglu AG. Immunohistochemical localization and expression of heat shock proteins (HSP27, HSP60, HSP70, and HSP90) during the oestrous cycle, pregnancy, and lactation in rat ovaries. Acta Histochem 2024; 126:152157. [PMID: 38581753 DOI: 10.1016/j.acthis.2024.152157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 03/19/2024] [Accepted: 03/26/2024] [Indexed: 04/08/2024]
Abstract
This study aimed to determine the expressions of HSP27, HSP60, HSP70, and HSP90 in rat ovaries during the oestrous cycle, pregnancy, and lactation. In follicle cells, HSP27 and HSP70 expression was not observed. HSP60 in oocytes was higher in the early stages of follicular development but decreased and disappeared as the follicle grew. HSP60 in granulosa and theca cells increased with follicle development and decreased with atresia. HSP90 in follicle cells did not change during follicle development or atresia. The expression of HSPs in interstitial cells was higher in the proestrus and estrus phases of the estrous cycle. The expression of HSPs in these cells was higher on day 5 of pregnancy, decreased on day 10, and decreased further on days 15 and 20. The expression of HSPs, which decreased in the second half of pregnancy, increased again on the first day of lactation. The expression of HSPs then decreased on day 5 of lactation and further decreased on days 10 and 20. HSP60 and HSP90 were positive in new and old corpus luteums (CLs) and their expression did not change during luteal development or regression. HSP27 and HSP70 were absent in new CLs. HSP27 was positive in old CLs and showed the same staining pattern during luteal regression. HSP70 expression was determined in old cyclic CLs during the oestrous cycle and pregnancy and decreased with luteal regression. HSP70 expression in old pregnancy CLs during lactation was very weak compared to the oestrous cycle and pregnancy. In conclusion, HSP60 and HSP90 may participate in folliculogenesis, luteal development, and steroidogenesis in luteal cells, and HSP27, HSP60, HSP70, and HSP90 may be effective in luteal regression and steroidogenesis in interstitial cells. HSP27 and HSP70 may be used as markers to identify old CLs in rats.
Collapse
Affiliation(s)
- Banu Kandil
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Siirt University, Siirt, Turkey.
| | - Nevin Kurtdede
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Alev Gürol Bayraktaroglu
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| |
Collapse
|
2
|
Rodríguez FM, Huber E, Cattaneo Moreyra ML, Amweg AN, Notaro US, Recce S, Ormaechea N, Ortega HH, Salvetti NR, Rey F. Association of glucocorticoid receptor expression with key members of the insulin signaling pathway and heat shock proteins in the bovine ovary. Theriogenology 2023; 211:241-247. [PMID: 37677868 DOI: 10.1016/j.theriogenology.2023.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/25/2023] [Accepted: 08/27/2023] [Indexed: 09/09/2023]
Abstract
Glucocorticoids (GCs) act through their receptor (GR) as regulators in different biological processes such as reproduction. In the absence of GCs, the GR remains inactive in the cytoplasm by associating with heat shock proteins (HSPs), which act as molecular chaperones, among which the most relevant are HSP90 and HSP70. Cytoplasmic GC-activated GR mediates non-genomic effects, interacting with members of signaling pathways such as PI3K/Akt, which participates in several metabolic processes, including the insulin signaling pathway. The aim of the present study was to evaluate possible associations between the cytoplasmic GR and the main intermediates of the insulin signaling pathway and HSP90 and HSP70 in ovaries of dairy cows. To this end, the protein expression of cytoplasmic GR, key members of the insulin signaling pathway, and HSPs was evaluated in ovarian preovulatory follicles of non-lactating Holstein cows in proestrus. Positive associations were observed between protein expression of GR and HSP90, IRS1, pIRS1, PI3K and pAkt (p < 0.05; β > 0) in granulosa cells of dominant follicles of dairy cows. Instead, in theca cells, no associations were observed between protein expression of GR and members of the insulin signaling pathway or HSPs. These data provide evidence of the possible association between the non-genomic mechanisms of action of the GR and the insulin signaling pathway in the bovine ovary.
Collapse
Affiliation(s)
- F M Rodríguez
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - E Huber
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - M L Cattaneo Moreyra
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina
| | - A N Amweg
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - U S Notaro
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina
| | - S Recce
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - N Ormaechea
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - H H Ortega
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - N R Salvetti
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - F Rey
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Tecnológicas, (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina.
| |
Collapse
|
3
|
Dovolou E, Giannoulis T, Nanas I, Amiridis GS. Heat Stress: A Serious Disruptor of the Reproductive Physiology of Dairy Cows. Animals (Basel) 2023; 13:1846. [PMID: 37889768 PMCID: PMC10252019 DOI: 10.3390/ani13111846] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/25/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Global warming is a significant threat to the sustainability and profitability of the dairy sector, not only in tropical or subtropical regions but also in temperate zones where extreme summer temperatures have become a new and challenging reality. Prolonged exposure of dairy cows to high temperatures compromises animal welfare, increases morbidity, and suppresses fertility, resulting in devastating economic losses for farmers. To counteract the deleterious effects of heat stress, cattl e employ various adaptive thermoregulatory mechanisms including molecular, endocrine, physiological, and behavioral responses. These adaptations involve the immediate secretion of heat shock proteins and cortisol, followed by a complex network of disrupted secretion of metabolic and reproductive hormones such as prolactin, ghrelin, ovarian steroid, and pituitary gonadotrophins. While the strategic heat stress mitigation measures can restore milk production through modifications of the microclimate and nutritional interventions, the summer fertility records remain at low levels compared to those of the thermoneutral periods of the year. This is because sustainment of high fertility is a multifaceted process that requires appropriate energy balance, undisrupted mode of various hormones secretion to sustain the maturation and fertilizing competence of the oocyte, the normal development of the early embryo and unhampered maternal-embryo crosstalk. In this review, we summarize the major molecular and endocrine responses to elevated temperatures in dairy cows, as well as the impacts on maturing oocytes and early embryos, and discuss the consequences that heat stress brings about in dairy cattle fertility.
Collapse
Affiliation(s)
- Eleni Dovolou
- Laboratory of Reproduction, Faculty of Animal Science, University of Thessaly, 41223 Larissa, Greece;
- Department of Obstetrics & Reproduction, Faculty of Veterinary Science, University of Thessaly, 43100 Karditsa, Greece;
| | - Themistoklis Giannoulis
- Laboratory of Genetics, Faculty of Animal Science, University of Thessaly, 41223 Larissa, Greece;
| | - Ioannis Nanas
- Department of Obstetrics & Reproduction, Faculty of Veterinary Science, University of Thessaly, 43100 Karditsa, Greece;
| | - Georgios S. Amiridis
- Department of Obstetrics & Reproduction, Faculty of Veterinary Science, University of Thessaly, 43100 Karditsa, Greece;
| |
Collapse
|
4
|
Khushboo M, Sanjeev S, Murthy MK, Sunitadevi M, Dinata R, Bhanushree B, Bidanchi RM, Nisa N, Lalrinzuali S, Manikandan B, Saeed AL, Abinash G, Pori B, Arati C, Roy VK, Gurusubramanian G. Dietary phytoestrogen diosgenin interrupts metabolism, physiology, and reproduction of Swiss albino mice: Possible mode of action as an emerging environmental contaminant, endocrine disruptor and reproductive toxicant. Food Chem Toxicol 2023; 176:113798. [PMID: 37146712 DOI: 10.1016/j.fct.2023.113798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 05/07/2023]
Abstract
Dietary phytoestrogens are the main source of environmental contamination due to their estrogen-mimicking and endocrine-disrupting effects, posing a threat to microbial, soil, plant, and animal health. Diosgenin, a phytosteroid saponin, is used in many traditional medicines, nutraceuticals, dietary supplements, contraceptives, and hormone replacement therapies against numerous diseases and disorders. It is important to be aware of the potential risks associated with diosgenin, as well as its potential to cause reproductive and endocrine toxicity. Due to the lack of research on the safety and probable adverse side effects of diosgenin, this work evaluated the endocrine-disrupting and reproductive toxicity of diosgenin in albino mice by following acute toxicity (OECD-423), repeated dose 90-day oral toxicity (OECD-468), and F1 extended one-generation reproductive toxicity (OECD-443) studies. Diosgenin was found to be slightly toxic, with LD50 for male and female mice being 546.26 and 538.72 mg/kg, respectively. Chronic exposure of diosgenin (10, 50, 100, and 200 mg/kg) generated oxidative stress, depleted antioxidant enzymes, disturbed homeostasis of the reproductive hormones, and interrupted steroidogenesis, germ cell apoptosis, gametogenesis, sperm quality, estrous cycle, and reproductive performance in the F0 and F1 offspring. Long-term oral exposure of diosgenin to the mice disturbed the endocrine and reproductive functions and generated transgenerational reproductive toxic effects in F0 and F1 offspring. These results suggest that diosgenin should be used carefully in food products and medical applications due to its potential endocrine-disrupting and reproductive toxic effects. The findings of this study provide a better understanding of the potential adverse effects of diosgenin and the need for appropriate risk assessment and management of its use.
Collapse
Affiliation(s)
- Maurya Khushboo
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Sanasam Sanjeev
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | | | - Maibam Sunitadevi
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Roy Dinata
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Baishya Bhanushree
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | | | - Nisekhoto Nisa
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Sailo Lalrinzuali
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Bose Manikandan
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Ahmed-Laskar Saeed
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Giri Abinash
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Buragohain Pori
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Chettri Arati
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | - Vikas Kumar Roy
- Department of Zoology, Mizoram University, Aizawl, 796004, Mizoram, India.
| | | |
Collapse
|
5
|
Liman N, Kuzkale M. Heat shock proteins exhibit distinct spatiotemporal expression patterns in the domestic cat ( Felis catus) ovary during the oestrous cycle. Reprod Fertil Dev 2022; 34:498-515. [PMID: 35115081 DOI: 10.1071/rd21155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 12/12/2021] [Indexed: 11/23/2022] Open
Abstract
Heat shock proteins (HSP) are significant regulators of cell proliferation, differentiation and apoptosis. HSP participate in ovarian physiology through proliferative and apoptotic mechanisms and the modulation of sex steroid receptor functions. We investigated whether the expression and localisation patterns of HSP in the domestic cat ovary vary with the oestrous cycle stage. Immunohistochemical analysis revealed cell type-specific localisation patterns of HSPD1/HSP60, HSPA/HSP70, HSPC/HSP90 and HSPH/HSP105 in several ovarian cells of the domestic cat, including oocytes, follicular (granulosa and theca cells) and luteal cells, stromal and thecal interstitial cells, stromal cells, and vascular endothelial and smooth muscle cells during the anoestrous, follicular and luteal phases of the oestrous cycle. Western blot results showed that the expression of three HSP (HSPD1/HSP60, HSPA/HSP70 and HSPH/HSP105) varied with the oestrous cycle stage. While the maximal expression of HSPD1/HSP60 and HSPH/HSP105 occurred during the luteal phase, the expression of HSPA/HSP70 was minimal. The expressions of HSPA/HSP70 and HSPH/HSP105 were low during the follicular phase compared to the anoestrous phase. In conclusion, the alterations that occur in the expression of HSP in the domestic cat ovary during the different stages of the oestrous cycle imply that these proteins participate in the regulation of ovarian function under different physiological conditions.
Collapse
Affiliation(s)
- Narin Liman
- Department of Histology and Embryology, Faculty of Veterinary Medicine, University of Erciyes, 38039, Kayseri, Turkey
| | - Murat Kuzkale
- Republic of Turkey Minister of Agriculture and Forestry, Afyonkarahisar Food Control Laboratory Directorate, 03100, Afyonkarahisar, Turkey
| |
Collapse
|
6
|
Stamperna K, Giannoulis T, Dovolou E, Kalemkeridou M, Nanas I, Dadouli K, Moutou K, Mamuris Z, Amiridis GS. The Effects of Heat Shock Protein 70 Addition in the Culture Medium on the Development and Quality of In Vitro Produced Heat Shocked Bovine Embryos. Animals (Basel) 2021; 11:3347. [PMID: 34944122 PMCID: PMC8698181 DOI: 10.3390/ani11123347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/26/2022] Open
Abstract
The aims of the present study were to examine the effects of HSP70 addition in the in vitro culture medium of day 3 embryos on their developmental competence and quality. Bovine oocytes (n = 1442) were in vitro matured, inseminated and cultured for the first two days according to standardized methods. The presumptive zygotes were randomly allocated in three experimental groups: Control, C (embryos cultured at 39 °C throughout the culture period), group C41 (temperature was raised to 41 °C from the 48th to 72nd h post insemination (p.i.) and then it returned at 39 °C for the remaining culture period), and group H41 (the temperature modification was the same as in C41 and during heat exposure, HSP70 was added in the culture medium). Cleavage and embryo yield were assessed 48 h p.i. and on days 7, 8, 9, respectively and gene expression in day 7 blastocysts was assessed by RT-PCR. Blastocyst yield was the highest in group C39; and higher in group H41 compared to group C41. From the gene expression analyses, altered expression of 11 genes was detected among groups. The analysis of the orchestrated patterns of gene expression differed between groups. The results of this study confirm the devastating effects of heat stress on embryo development and provide evidence that HSP70 addition at the critical stages can partly counterbalance, without neutralizing, the negative effects of the heat insult on embryos, acting mainly through mechanisms related to energy deployment.
Collapse
Affiliation(s)
- Konstantina Stamperna
- Department of Obstetrics and Reproduction, Veterinary Faculty, University of Thessaly, 431 00 Karditsa, Greece; (K.S.); (E.D.); (I.N.); (K.D.)
| | | | - Eleni Dovolou
- Department of Obstetrics and Reproduction, Veterinary Faculty, University of Thessaly, 431 00 Karditsa, Greece; (K.S.); (E.D.); (I.N.); (K.D.)
- Department of Animal Sciences, University of Thessaly, 413 36 Larissa, Greece;
| | - Maria Kalemkeridou
- Laboratory of Genetics, Comparative and Evolutionary Biology, Department of Biochemistry and Biotechnology, University of Thessaly, 413 36 Larissa, Greece; (M.K.); (K.M.); (Z.M.)
| | - Ioannis Nanas
- Department of Obstetrics and Reproduction, Veterinary Faculty, University of Thessaly, 431 00 Karditsa, Greece; (K.S.); (E.D.); (I.N.); (K.D.)
| | - Katerina Dadouli
- Department of Obstetrics and Reproduction, Veterinary Faculty, University of Thessaly, 431 00 Karditsa, Greece; (K.S.); (E.D.); (I.N.); (K.D.)
- Laboratory of Hygiene and Epidemiology, Faculty of Medicine, University of Thessaly, 413 36 Larissa, Greece
| | - Katerina Moutou
- Laboratory of Genetics, Comparative and Evolutionary Biology, Department of Biochemistry and Biotechnology, University of Thessaly, 413 36 Larissa, Greece; (M.K.); (K.M.); (Z.M.)
| | - Zissis Mamuris
- Laboratory of Genetics, Comparative and Evolutionary Biology, Department of Biochemistry and Biotechnology, University of Thessaly, 413 36 Larissa, Greece; (M.K.); (K.M.); (Z.M.)
| | - Georgios S. Amiridis
- Department of Obstetrics and Reproduction, Veterinary Faculty, University of Thessaly, 431 00 Karditsa, Greece; (K.S.); (E.D.); (I.N.); (K.D.)
| |
Collapse
|
7
|
Kiran M, Maheswarappa NB, Banerjee R, Ch V, Rapole S. Impact of stunning before slaughter on expression of skeletal muscles proteome in sheep. Anim Biotechnol 2021:1-8. [PMID: 34559036 DOI: 10.1080/10495398.2021.1976198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The commercial production of halal and kosher meat and controversy surrounding the slaughter without stunning is rapidly growing across the globe. Huge global market for halal and kosher meat warrants conciliation of religious practices and animal welfare for the betterment of meat industry. In the present study, we investigated changes in muscle proteome of sheep (Ovis aries) subjected to either electrical stunning and slaughtering or slaughter without any stunning (halal). The 2DE gel analysis detected approximately 377 protein spots in which 243 (119 up regulated and 124 down regulated) protein spots were significantly (p ≤ 0.05) differentially expressed with a fold change ratio ≥1.5/≤1.5. The in-gel digestion and MALDI-TOF/TOF MS analysis of statistically significant protein spots revealed 35 differentially abundant proteins out of which 26 were up-regulated and 9 were down-regulated. The study demonstrated that slaughtering of sheep without stunning resulted in changes in the abundance of proteins involved in catalytic, structural, and stress related processes. This understanding of protein alterations in sheep slaughtered with and without stunning have the potential to act as possible signature for animal welfare index.
Collapse
Affiliation(s)
- Mohan Kiran
- Department of Livestock Products Technology, Veterinary College, KVAFSU, Bidar, India
| | | | | | - Venkatesh Ch
- Proteomics Lab, National Centre for Cell Science, Pune, India
| | - Srikanth Rapole
- Proteomics Lab, National Centre for Cell Science, Pune, India
| |
Collapse
|
8
|
Biswas S, Maitra S. Altered redox homeostasis in steroid-depleted follicles attenuates hCG regulation of follicular events: Cross-talk between endocrine and IGF axis in maturing oocytes. Free Radic Biol Med 2021; 172:675-687. [PMID: 34289395 DOI: 10.1016/j.freeradbiomed.2021.07.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/15/2021] [Accepted: 07/17/2021] [Indexed: 01/11/2023]
Abstract
Steroids and insulin-like growth factors (Igfs) are indispensable for folliculogenesis and reproductive fitness in the vertebrate ovary. The intrafollicular redox balance is also of immense importance for ovarian follicles wherein low levels of ROS are being utilized for cell signalling and regulation of gene expression; its excess may interfere with normal physiological processes leading to ovotoxicity. However, the functional relevance of ovarian steroidogenesis in maintaining the follicular microenvironment with coordinated redox homeostasis and intra-ovarian growth factors axis is relatively less understood. Using zebrafish full-grown (FG) ovarian follicles in vitro, our study shows that blocking steroid biosynthesis with anti-steroidal drugs, DL-aminoglutethimide (AG) or Trilostane (Trilo), prevents hCG (LH analogue)-induced StAR expression concomitant with a robust increase in intrafollicular ROS levels. Congruent with heightened intracellular levels of superoxide anions (O2•-) and hydrogen peroxide (H2O2), priming with AG or Trilo abrogates the transcript abundance of major antioxidant enzyme genes (SOD1, SOD2, and CAT) in hCG-stimulated follicles. Significantly, blocking steroidogenesis attenuates transcript abundance of HSP70 but elevates NOX4 expression potentially through ERα-mediated pathway. Importantly, disrupted redox balance in AG/Trilo pre-incubated FG follicles negatively impacts hCG-mediated activation of PKA/CREB signaling and transcriptional activation of igf ligands. Elevated ROS attenuation of antioxidant defense parameters and impaired endocrine and autocrine/paracrine homeostasis converge upon reduced p34cdc2 (Thr-161) phosphorylation, a reliable marker for MPF activation, and resumption of meiotic G2-M1 transition in hCG-treated follicles. Collectively, altered redox homeostasis in steroid-depleted follicles has a significant negative influence on GTH (LH) regulation of follicular events, specifically Igf synthesis, meiotic maturational competence and ovarian fitness.
Collapse
Affiliation(s)
- Subhasri Biswas
- Molecular and Cellular Endocrinology Laboratory, Department of Zoology, Visva-Bharati University, Santiniketan, 731235, India
| | - Sudipta Maitra
- Molecular and Cellular Endocrinology Laboratory, Department of Zoology, Visva-Bharati University, Santiniketan, 731235, India.
| |
Collapse
|
9
|
Zhang Q, Wang P, Cong G, Liu M, Shi S, Shao D, Tan B. Comparative transcriptomic analysis of ovaries from high and low egg-laying Lingyun black-bone chickens. Vet Med Sci 2021; 7:1867-1880. [PMID: 34318627 PMCID: PMC8464290 DOI: 10.1002/vms3.575] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Egg‐laying rate is mainly determined by ovarian function and regulated by the hypothalamic‐pituitary‐gonadal axis; however, the mechanism by which the ovary regulates the egg‐laying rate is still poorly understood. The purpose of this study was to compare the differences in the transcriptomes of the ovary of Lingyun black‐bone chickens with relatively high and low egg‐laying rates and screen candidate genes related to the egg‐laying rate. RNA‐sequencing (RNA‐Seq) was conducted to explore the chicken transcriptome from the ovarian tissue of six Lingyun black‐bone chickens with high (group G, n = 3) and low (group D, n = 3) egg‐laying rates. The results showed that 235 differentially expressed genes (DEGs) were identified between the chickens with high and low egg‐laying rates; among them, 209 DEGs were up‐regulated and 26 DEGs were down‐regulated. Gene Ontology analysis showed that the up‐regulated 209 DEGs were enriched in 50 GO terms and the down‐regulated 26 DEGs were enriched in 40 GO terms. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that up‐regulated DEGs were significantly enriched in 25 pathways and down‐regulated DEGs were significantly enriched in three pathways. Among the pathways, we found the longevity regulating pathway‐multiple species pathway, Estrogen signalling pathway and PPAR signalling pathway may have an essential function in regulating the egg‐laying rate. The results highlighted DEGs in the ovarian tissues of relatively high and low laying Lingyun black‐bone chicken and identified essential candidate genes related to the egg‐laying rate, thereby providing a theoretical basis for improving the egg‐laying rate of Lingyun black‐bone chicken.
Collapse
Affiliation(s)
- Qianyun Zhang
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi, P. R. China.,Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu, P. R. China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry Institute), Ministry of Agriculture, Yangzhou, Jiangsu, P. R. China
| | - Pengfei Wang
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi, P. R. China
| | - Guanglei Cong
- Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu, P. R. China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry Institute), Ministry of Agriculture, Yangzhou, Jiangsu, P. R. China.,College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, P. R. China
| | - Meihua Liu
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi, P. R. China
| | - Shourong Shi
- Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu, P. R. China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry Institute), Ministry of Agriculture, Yangzhou, Jiangsu, P. R. China.,College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, P. R. China
| | - Dan Shao
- Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu, P. R. China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry Institute), Ministry of Agriculture, Yangzhou, Jiangsu, P. R. China
| | - Benjie Tan
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi, P. R. China
| |
Collapse
|
10
|
Heat Shock Protein 70 Improves In Vitro Embryo Yield and Quality from Heat Stressed Bovine Oocytes. Animals (Basel) 2021; 11:ani11061794. [PMID: 34208520 PMCID: PMC8235242 DOI: 10.3390/ani11061794] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 11/17/2022] Open
Abstract
Heat shock protein 70 (HSP70) is a chaperon that stabilizes unfolded or partially folded proteins, preventing inappropriate inter- and intramolecular interactions. Here, we examined the developmental competence of in vitro matured oocytes exposed to heat stress with or without HSP70. Bovine oocytes were matured for 24 h at 39 °C without (group C39) or with HSP70 (group H39) and at 41 °C for the first 6 h, followed by 16 h at 39 °C with (group H41) or without HSP70 (group C41). After insemination, zygotes were cultured for 9 days at 39 °C. Cleavage and embryo yield were assessed 48 h post insemination and on days 7, 8, 9, respectively. Gene expression was assessed by RT-PCR in oocytes, cumulus cells and blastocysts. In C41, blastocysts formation rate was lower than in C39 and on day 9 it was lower than in H41. In oocytes, HSP70 enhanced the expression of three HSP genes regardless of incubation temperature. HSP70 at 39 °C led to tight coordination of gene expression in oocytes and blastocysts, but not in cumulus cells. Our results imply that HSP70, by preventing apoptosis, supporting signal transduction, and increasing antioxidant protection of the embryo, protects heat stressed maturing bovine oocyte and restores its developmental competence.
Collapse
|
11
|
Karabulut S, Korkmaz O, Kutlu P, Gozel HE, Keskin I. Effects o follicular fluid oxidative status on human mural granulosa cells, oocyte competency and ICSI parameters. Eur J Obstet Gynecol Reprod Biol 2020; 252:127-136. [PMID: 32599478 DOI: 10.1016/j.ejogrb.2020.06.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 06/02/2020] [Accepted: 06/08/2020] [Indexed: 12/22/2022]
Abstract
PURPOSE The aim of the present study was to understand the molecular and genetic alterations involved in follicular fluid oxidative process by investigating human mural granulosa cells and to find possible biomarkers for oocyte competency and ICSI outcome measures. METHODS A total of 166 patients were included in the study. Total antioxidant and oxidant levels of follicular fluids were measured on the day of oocyte pick-up and oxidative status were calculated. Expression profiles of three potential target proteins in cases of oxidative stress (Hsp70, Tgf-β, Notch1), DNA status and chromatin integrity of mural granulosa cells were analyzed. RESULTS TAS levels were positively correlated with the Hsp70 and Tgf-β expression patterns of mural granulosa cells. Mature oocyte rate and fertilization rates were affected negatively by the presence of oxidative stress and a significant positive correlation was found with the oxidative status and the fertilization rate, whereas no correlation with the remaining ICSI parameters in the overall group. CONCLUSIONS Oxidative stress detected in follicular fluid adversely affects fertilization rates post-ICSI however no effect on the remaining parameters including embryo quality, pregnancy, and implantation rates. DNA damage, chromatin integrity were increased, whereas Hsp70 and Tgf-ß were decreased in mural granulosa cells in cases of oxidative stress which may indirectly reflect the oocyte competency and may be used as biomarkers for ICSI outcome measures.
Collapse
Affiliation(s)
- Seda Karabulut
- Istanbul Medipol University, International School of Medicine, Histology and Embryology Department, İstanbul, Turkey; Medipol University, School of Medicine, Kavacık, İstanbul, REMER (Regenerative and Restorative Medicine Research Center), Kavacık Mah. Ekinciler Cad. No.19 Kavacık Kavşağı 34810 Beykoz, İstanbul, Turkey.
| | - Oya Korkmaz
- Istanbul Medipol University, International School of Medicine, Histology and Embryology Department, İstanbul, Turkey; Medipol University, School of Medicine, Kavacık, İstanbul, REMER (Regenerative and Restorative Medicine Research Center), Kavacık Mah. Ekinciler Cad. No.19 Kavacık Kavşağı 34810 Beykoz, İstanbul, Turkey
| | - Pelin Kutlu
- Medicana Çamlıca Hospital, IVF Center, İstanbul, Turkey
| | - Hilal Eren Gozel
- Istanbul Medipol University, International School of Medicine, Histology and Embryology Department, İstanbul, Turkey; Medipol University, School of Medicine, Kavacık, İstanbul, REMER (Regenerative and Restorative Medicine Research Center), Kavacık Mah. Ekinciler Cad. No.19 Kavacık Kavşağı 34810 Beykoz, İstanbul, Turkey
| | - Ilknur Keskin
- Istanbul Medipol University, International School of Medicine, Histology and Embryology Department, İstanbul, Turkey; Medipol University, School of Medicine, Kavacık, İstanbul, REMER (Regenerative and Restorative Medicine Research Center), Kavacık Mah. Ekinciler Cad. No.19 Kavacık Kavşağı 34810 Beykoz, İstanbul, Turkey
| |
Collapse
|
12
|
Variations in the Expression Pattern of HSP27 and MSK1 Genes During the Development of Prehierarchical Follicles in the Zi Geese ( Anser Cygnoides). ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2019-0048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The p38MAPKs (mitogen-activated protein kinases) signaling contributes a pivotal role in mammalian ovarian follicular development; however, the knowledge regarding their expression in geese remains unresolved. The objective of the current study was to determine the spatio-temporal expression of heat shock protein 27 (HSP27) and mitogen- and stress-activated protein kinase 1 (MSK1) genes in the prehierarchical follicles during geese ovarian development. The prehierarchical follicles samples were harvested from 35- to 37-week-old healthy laying geese. HSP27 and MSK1 relative expression in various sized prehierachical follicles was detected by real-time quantitative polymerase chain reaction (RT-qPCR) and western blotting. Follicular wall localization of HSP27 and MSK1 was examined by using immunohistochemistry. Our results at mRNA level indicated that HSP27 was highly expressed in middle white follicles whereas MSK1 was predominantly expressed in small white follicles. The western blotting results for HSP27 and MSK1 were inconsistent with the RT-qPCR results in various stages of prehierachical follicular development but noticeably, HSP27 proteins were still expressed more in middle white follicles while MSK1 proteins were more abundant in primary follicles. At different stages of prehierarchical development, immunodetections in the granulosa and theca cells revealed that HSP27 was intensively localized in middle white follicles while strong detections of MSK1 were observed in large white follicles. These results indicate HSP27 and MSK1 might be associated to the key regulators of folliculogenesis in geese.
Collapse
|
13
|
Hoter A, Naim HY. Heat Shock Proteins and Ovarian Cancer: Important Roles and Therapeutic Opportunities. Cancers (Basel) 2019; 11:E1389. [PMID: 31540420 PMCID: PMC6769485 DOI: 10.3390/cancers11091389] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/11/2019] [Accepted: 09/16/2019] [Indexed: 12/17/2022] Open
Abstract
Ovarian cancer is a serious cause of death in gynecological oncology. Delayed diagnosis and poor survival rates associated with late stages of the disease are major obstacles against treatment efforts. Heat shock proteins (HSPs) are stress responsive molecules known to be crucial in many cancer types including ovarian cancer. Clusterin (CLU), a unique chaperone protein with analogous oncogenic criteria to HSPs, has also been proven to confer resistance to anti-cancer drugs. Indeed, these chaperone molecules have been implicated in diagnosis, prognosis, metastasis and aggressiveness of various cancers. However, relative to other cancers, there is limited body of knowledge about the molecular roles of these chaperones in ovarian cancer. In the current review, we shed light on the diverse roles of HSPs as well as related chaperone proteins like CLU in the pathogenesis of ovarian cancer and elucidate their potential as effective drug targets.
Collapse
Affiliation(s)
- Abdullah Hoter
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
- Department of Physiological Chemistry, University of Veterinary Medicine Hannover, 30559 Hannover, Germany.
| | - Hassan Y Naim
- Department of Physiological Chemistry, University of Veterinary Medicine Hannover, 30559 Hannover, Germany.
| |
Collapse
|
14
|
Kumar S, Balhara AK, Buragohain L, Kumar R, Sharma RK, Phulia SK, Mohanty AK, Singh I. Identification of novel proteomics markers involved in ovarian endocrinology of riverine buffalo ( Bubalus bubalis). BIOL RHYTHM RES 2019. [DOI: 10.1080/09291016.2019.1658061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Sunil Kumar
- Division of Animal Reproduction, ICAR-IVRI, Izatnagar, India
| | | | - Lukumoni Buragohain
- Department of Animal Biotechnology, College of Veterinary Science, AAU, Guwahati, India
| | - Rajesh Kumar
- Department of Veterinary Physiology, Kerala Veterinary and Animal Sciences University, Pookot, India
| | | | | | | | - Inderjeet Singh
- Division of Animal Physiology and Reproduction, ICAR-CIRB, Hisar, India
| |
Collapse
|
15
|
Wu G, Hu X, Ding J, Yang J. Abnormal expression of HSP70 may contribute to PCOS pathology. J Ovarian Res 2019; 12:74. [PMID: 31399035 PMCID: PMC6688372 DOI: 10.1186/s13048-019-0548-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 07/29/2019] [Indexed: 11/25/2022] Open
Abstract
Background The mechanism of the pathological change of polycystic ovary syndrome (PCOS) is still unclear. Previous studies have shown that PCOS is a chronic nonspecific low-grade inflammatory condition, and that heat shock protein (HSP)70 has a potent anti-inflammatory property. So the aim of this study is to investigate the correlation between HSP70 and the hormones and inflammatory factors and to find out the role of HSP70 in the pathogenesis of PCOS. Methods Twenty female Sprague–Dawley (SD) rats (aged 23 days and weighted 80-90 g) were randomly divided into two groups (n = 10 per group), PCOS group and control group. PCOS group were subcutaneously injected with 6 mg/100 g dehydro-epiandrosterone (DHEA) for 20 consecutive days, the control group were subcutaneously injected with a solvent of equivalent amount. All the samples were collected in the morning fasting state, 12 h after the last administration. Histological examinations of ovarian tissues were analyzed. Hormone levels and inflammatory factors levels were measured by enzyme-linked immunosorbent assay (ELISA) kits. Results Serum concentrations of testosterone (T) and luteinizing hormone (LH) were significantly higher in the PCOS group than the control group (P < 0.001), but the concentrations of estradiol (E2), follicle stimulating hormone (FSH) and insulin didn’t show significant difference between these two groups. All the concentrations of inflammatory factors including C-reactive protein (CRP), interleukin (IL)-6, IL-18, and tumor necrosis factor (TNF)-α. were significantly higher in PCOS group than the control group (P < 0.001). The expressions of HSP70 were significantly lower in serum but higher in ovarian tissues in the PCOS group than the control group. Spearman rank correlation analysis showed strong negative correlation of serum HSP70 levels with T, LH and all the detected inflammatory factors. Conclusion The abnormal expression of HSP70 correlated with testosterone and inflammatory factors, which indicates that HSP70 may play an important role in PCOS pathology.
Collapse
Affiliation(s)
- Gengxiang Wu
- Reproductive Medical Centre, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China. .,Hubei Clinical Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, 430060, People's Republic of China.
| | - Xue Hu
- Reproductive Medical Centre, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Clinical Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, 430060, People's Republic of China
| | - Jinli Ding
- Reproductive Medical Centre, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Clinical Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, 430060, People's Republic of China
| | - Jing Yang
- Reproductive Medical Centre, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Clinical Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, 430060, People's Republic of China
| |
Collapse
|
16
|
Bai WJ, Jin PJ, Kuang MQ, Wei QW, Shi FX, Davis JS, Mao DG. Temporal regulation of extracellular signal-regulated kinase 1/2 phosphorylation, heat shock protein 70 and activating transcription factor 3 during prostaglandin F-induced luteal regression in pseudopregnant rats following heat stress. Reprod Fertil Dev 2018; 29:1184-1193. [PMID: 27169499 DOI: 10.1071/rd15415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 03/17/2016] [Indexed: 12/24/2022] Open
Abstract
The aim of the present study was to investigate the effects of heat stress on heat shock protein (HSP) 70 expression and mitogen-activated protein kinase (MAPK) and protein kinase (PK) B signalling during prostaglandin F (PGF)-induced luteal regression. During pseudopregnancy, rats were exposed to heat stress (HS, 40°C, 2h) for 7 days and treated with PGF or physiological saline on Day 7; serum and ovaries were collected 0, 1, 2, 8 or 24h after PGF treatment. The early inhibitory effect of PGF on progesterone was reduced in HS rats. HSP70 expression in response to PGF was significantly enhanced in HS rats. PGF-induced phosphorylation of extracellular signal-regulated kinase (ERK) 1/2 was significantly greater in the HS group; however, HS rats exhibited elevated basal levels of phosphorylation of p38 MAPK, but not ERK1/2. PGF treatment increased expression of activating transcription factor (ATF) 3 at 2h, which was inhibited by heat stress. Evaluating PKB signalling revealed that phosphorylation of p-Akt (Thr308 and Ser473) was reduced at 8 and 24h after PGF treatment in both non-heat stress (NHS) and HS groups, but there were no significant differences between the HS and NHS groups at any of the time points. In conclusion, the present study provides further evidence that heat stress may enhance HSP70 and affect ERK1/2 and ATF3 expression, but not Akt activation, during PGF-induced luteal regression in pseudopregnant rats.
Collapse
Affiliation(s)
- Wu-Jiao Bai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Peng-Jing Jin
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Mei-Qian Kuang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Quan-Wei Wei
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Fang-Xiong Shi
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - John S Davis
- VA Nebraska-Western Iowa Health Care System and Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Da-Gan Mao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| |
Collapse
|
17
|
Wang DH, Zhou HX, Liu SJ, Zhou CJ, Kong XW, Han Z, Liang CG. Glial cell line-derived neurotrophic factor supplementation promotes bovine in vitro oocyte maturation and early embryo development. Theriogenology 2018; 113:92-101. [PMID: 29477014 DOI: 10.1016/j.theriogenology.2018.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 02/09/2018] [Accepted: 02/15/2018] [Indexed: 12/13/2022]
Abstract
Paracrine factors such as glial cell line-derived neurotrophic factor (GDNF), which was originally derived from the supernatants of a rat glioma cell line, play pivotal roles in oocyte maturation and early embryo development in mammals, such as mice, rats, pigs, sheep, and even humans. However, whether GDNF facilitates in vitro oocyte maturation or early embryo development in bovines is not yet known. We show for the first time that GDNF and its receptor, GDNF family receptor alpha-1 (GFRA1), are presented in ovarian follicles at different stages as well as during oocyte maturation and early embryo development. Immunostaining results revealed the subcellular localizations of GDNF and GFRA1 in oocytes throughout follicle development, first in germinal vesicles and during blastocyst embryo stages. The ability of exogenously applied GDNF to promote oocyte maturation and early embryo development was evaluated in culture, where we found that an optimal concentration of 50 ng/mL promotes the maturation of cumulus-oocyte complexes and the nuclei of denuded oocytes as well as the development of embryos after IVF. To further investigate the potential mechanism by which GDNF promotes oocyte maturation, bovine oocytes were treated with morpholinos targeting Gfra1. The suppression of GFRA1 presence blocked endogenous and exogenous GDNF functions, indicating that the effects of GDNF that are essential and beneficial for bovine oocyte maturation and early embryo development occur through this receptor. Furthermore, we show that supplementation with GDNF improves the efficiency of bovine IVF embryo production.
Collapse
Affiliation(s)
- Dong-Hui Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Hong-Xia Zhou
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Shu-Jun Liu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Cheng-Jie Zhou
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Xiang-Wei Kong
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Zhe Han
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China
| | - Cheng-Guang Liang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, The Research Center for Laboratory Animal Science, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, People's Republic of China.
| |
Collapse
|
18
|
Functional genomics study of acute heat stress response in the small yellow follicles of layer-type chickens. Sci Rep 2018; 8:1320. [PMID: 29358656 PMCID: PMC5778056 DOI: 10.1038/s41598-017-18335-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 12/11/2017] [Indexed: 01/16/2023] Open
Abstract
This study investigated global gene and protein expression in the small yellow follicle (SYF; 6-8 mm in diameter) tissues of chickens in response to acute heat stress. Twelve 30-week-old layer-type hens were divided into four groups: control hens were maintained at 25 °C while treatment hens were subjected to acute heat stress at 36 °C for 4 h without recovery, with 2-h recovery, and with 6-h recovery. SYFs were collected at each time point for mRNA and protein analyses. A total of 176 genes and 93 distinct proteins with differential expressions were identified, mainly associated with the molecular functions of catalytic activity and binding. The upregulated expression of heat shock proteins and peroxiredoxin family after acute heat stress is suggestive of responsive machineries to protect cells from apoptosis and oxidative insults. In conclusion, both the transcripts and proteins associated with apoptosis, stress response, and antioxidative defense were upregulated in the SYFs of layer-type hens to alleviate the detrimental effects by acute heat stress. However, the genomic regulations of specific cell type in response to acute heat stress of SYFs require further investigation.
Collapse
|
19
|
Involvement of Matrix Metalloproteinases and their Inhibitors in Bovine Cystic Ovarian Disease. J Comp Pathol 2017; 156:191-201. [DOI: 10.1016/j.jcpa.2016.10.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 10/05/2016] [Accepted: 10/27/2016] [Indexed: 11/20/2022]
|
20
|
Scheiner D, Bracone G, Imesch P, Fink D, Hehl J, Imthurn B. Comparison of quartz vials with polypropylene vials for rapid cryopreservation of human ovarian tissue. J Ovarian Res 2016; 9:59. [PMID: 27670300 PMCID: PMC5037623 DOI: 10.1186/s13048-016-0268-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 09/17/2016] [Indexed: 11/23/2022] Open
Abstract
Background Because higher survival of follicles during the freezing/thawing procedure improves the quality of cryopreserved tissue reimplanted after oncological therapies, defining an optimal method for human ovarian tissue cryopreservation remains a major issue in this field. One option to improve the cryopreservation procedure is to use better materials, i.e., vials with better conductivity. The aim of this study was to compare polypropylene (PP) with quartz vials. Between September 2012 and January 2013, eight patients were recruited. The ovarian cortex was cut into 3 slices, assigned randomly to a fresh and a cryopreserved group in PP (method B) or quartz vials (method C). Histological and immunohistochemical (IHC) analysis were used. For IHC three antibodies were analyzed: Ki67 (proliferation index), Bcl2 (anti apoptotic index) and Hsp70 (stress index). Results The majority of GCs showed positive staining for Bcl2 in both cryopreservation device, with higher expression in group C than in group B. Oocytes and their nuclei showed intense positive staining for ki67 in both methods B and C, and also a patch positive stromal cells staining for Ki67. Expression of hsp70 was not increased after cryopreservation. Conclusions Cryopreservation using quartz vials led to larger numbers of good follicles while maintaining consistent preservation for stromal cells and vessels.
Collapse
Affiliation(s)
- D Scheiner
- Department of Gynecology, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland.
| | - G Bracone
- Kantonsspital Luzern, Neue Frauenklinik - Kinderwunsch Zentrum, Andrologie-IVF Labor, Spitalstrasse 2, 6000, Luzern, Switzerland
| | - P Imesch
- Department of Gynecology, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland
| | - D Fink
- Department of Gynecology, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland
| | - J Hehl
- LMSC-Light Microscopy and Sreening Centre, ETH Zurich, Schafmattstrasse 18, 8093, Zurich, Switzerland
| | - B Imthurn
- Division of Reproductive Endocrinology, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland
| |
Collapse
|
21
|
Effects of transport distance, lairage time and stunning efficiency on cortisol, glucose, HSPA1A and how they relate with meat quality in cattle. Meat Sci 2016; 117:89-96. [PMID: 26967002 DOI: 10.1016/j.meatsci.2016.03.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 02/26/2016] [Accepted: 03/01/2016] [Indexed: 11/21/2022]
Abstract
This study determined the effects of distance travelled, lairage duration and number of stunning shots on the plasma levels of bovine heat shock protein 70 (HSPA1A), cortisol (CORT) and glucose (GLU) and their relationship with beef quality. There were positive correlations among HSPA1A, GLU, CORT, a*, b* and the HUE angle. Animals that were stunned more than once had the highest HSPA1A (13.61±2.874ng/ml) and CORT (109.36±8.373nmol/L) levels. Animals that travelled for 200<400km had lower HSPA1A expression (8.29±2.026ng/ml) than those that were transported for 400<800km (12.11±2.548ng/ml) and <200km (17.32±2.362ng/ml). Lairage duration affected (P<0.05) the expression of HSPA1A, GLU and CORT levels. Animals stunned more than once had elevated CORT and HSPA1A levels. HSPA1A, CORT and GLU were related to beef quality. Stunning of animals more than once increased the levels of blood CORT and HSPA1A.
Collapse
|
22
|
Jump in the fire--heat shock proteins and their impact on ovarian cancer therapy. Crit Rev Oncol Hematol 2015; 97:152-6. [PMID: 26318096 DOI: 10.1016/j.critrevonc.2015.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 08/05/2015] [Indexed: 01/11/2023] Open
Abstract
Ovarian cancer (OC) is a major problem in gynecological oncology. Options for diagnosis and treatment of advanced stages and thus for patient prognosis have not been improved substantially over the past decades. Heat shock proteins (HSP) are characterized as stress-induced molecular chaperones performing cell survival factor functions. In cancer cells, various crucial and clinically important cell responses are vitally influenced and modulated by HSPs, e.g., cell growth and treatment resistance. Despite the limited knowledge on HSPs in OC progression, their roles as biomarkers, prognostic factors and their drug target properties appears promising for future clinical applications and therapeutic approaches.
Collapse
|
23
|
Baravalle ME, Stassi AF, Velázquez MML, Belotti EM, Rodríguez FM, Ortega HH, Salvetti NR. Altered Expression of Pro-inflammatory Cytokines in Ovarian Follicles of Cows with Cystic Ovarian Disease. J Comp Pathol 2015; 153:116-30. [PMID: 26065705 DOI: 10.1016/j.jcpa.2015.04.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 04/14/2015] [Accepted: 04/22/2015] [Indexed: 10/23/2022]
Abstract
A growing body of evidence suggests that ovulation shares many of the features of an inflammatory reaction and that cytokines play many diverse and important roles in reproductive biology. The aim of this study was to examine the expression of the pro-inflammatory cytokines interleukin (IL)-1α, IL-6 and tumour necrosis factor (TNF)-α in ovarian cells from cows with cystic ovarian disease (COD) as compared with that in ovarian structures from regularly cycling cows. Expression of genes encoding IL-1α, IL-6 and TNF-α was detected by real-time polymerase chain reaction in follicular cells from ovaries from healthy cows and cows with COD with no significant differences. However, immunohistochemistry showed increased expression of IL-1α, IL-6 and TNF-α in cystic follicles, suggesting that this expression may be related to the persistence of follicular cysts. The effect of COD was evident for IL-1α and TNF-α, and a follicular structure-disease interaction was observed in the expression of all the cytokines evaluated. Thus, altered expression of these proinflammatory cytokines may be related to ovulation failure and development of follicular cysts.
Collapse
Affiliation(s)
- M E Baravalle
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Instituto de Ciencias Veterinarias del Litoral, Esperanza, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas, Esperanza, Santa Fe, Argentina
| | - A F Stassi
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Instituto de Ciencias Veterinarias del Litoral, Esperanza, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas, Esperanza, Santa Fe, Argentina
| | - M M L Velázquez
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Instituto de Ciencias Veterinarias del Litoral, Esperanza, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas, Esperanza, Santa Fe, Argentina
| | - E M Belotti
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Instituto de Ciencias Veterinarias del Litoral, Esperanza, Santa Fe, Argentina
| | - F M Rodríguez
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Instituto de Ciencias Veterinarias del Litoral, Esperanza, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas, Esperanza, Santa Fe, Argentina
| | - H H Ortega
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Instituto de Ciencias Veterinarias del Litoral, Esperanza, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas, Esperanza, Santa Fe, Argentina
| | - N R Salvetti
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Instituto de Ciencias Veterinarias del Litoral, Esperanza, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas, Esperanza, Santa Fe, Argentina.
| |
Collapse
|
24
|
Ortega HH, Marelli BE, Rey F, Amweg AN, Díaz PU, Stangaferro ML, Salvetti NR. Molecular aspects of bovine cystic ovarian disease pathogenesis. Reproduction 2015; 149:R251-64. [DOI: 10.1530/rep-14-0618] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 03/12/2015] [Indexed: 11/08/2022]
Abstract
Cystic ovarian disease (COD) is one of the main causes of reproductive failure in cattle and causes severe economic loss to the dairy farm industry because it increases both days open in the post partum period and replacement rates due to infertility. This disease is the consequence of the failure of a mature follicle to ovulate at the time of ovulation in the estrous cycle. This review examines the evidence for the role of altered steroid and gonadotropin signaling systems and the proliferation/apoptosis balance in the ovary with cystic structures. This evidence suggests that changes in the expression of ovarian molecular components associated with these cellular mechanisms could play a fundamental role in the pathogenesis of COD. The evidence also shows that gonadotropin receptor expression in bovine cystic follicles is altered, which suggests that changes in the signaling system of gonadotropins could play a fundamental role in the pathogenesis of conditions characterized by altered ovulation, such as COD. Ovaries from animals with COD exhibit a disrupted steroid receptor pattern with modifications in the expression of coregulatory proteins. These changes in the pathways of endocrine action would trigger the changes in proliferation and apoptosis underlying the aberrant persistence of follicular cysts.Free Spanish abstract: A Spanish translation of this abstract is freely available at http://www.reproduction-online.org/content/149/6/R251/suppl/DC1.
Collapse
|
25
|
Stangaferro ML, Matiller V, Díaz PU, Ortega HH, Rey F, Rodríguez FM, Silva MA, Salvetti NR. Role of activin, inhibin, and follistatin in the pathogenesis of bovine cystic ovarian disease. Anim Reprod Sci 2014; 148:97-108. [PMID: 25001504 DOI: 10.1016/j.anireprosci.2014.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 05/20/2014] [Accepted: 06/19/2014] [Indexed: 11/26/2022]
Abstract
Cystic ovarian disease (COD) is an important cause of infertility in dairy cattle. Although many researchers have focused their work on the endocrine changes related to this disease, evidence indicates that intraovarian components play an important role in follicular persistence. Activin, inhibin, and follistatin participate as intraovarian regulatory molecules involved in follicular cell proliferation, differentiation, steroidogenesis, oocyte maturation, and corpus luteum function. Given the importance of these factors in folliculogenesis, we examined the expression and immunolocalization of activin/inhibin βA-subunit, inhibin α-subunit, and follistatin in the ovaries of healthy estrus-synchronized cows and in those of cows with spontaneous or adrenocorticotropic hormone (ACTH)-induced COD. We also studied inhibin B (α βB) levels in serum and follicular fluid. We found an increased expression of the βA-subunit of activin A/inhibin A, the α-subunit of inhibin, and follistatin in granulosa cells of spontaneous follicular cysts by immunohistochemistry, and decreased concentrations of inhibin B (α βB) in the follicular fluid of spontaneous follicular cysts. These results, together with those previously obtained, indicate that the expression of the components of the activin-inhibin-follistatin system is altered. This could lead to multiple alterations in important functions in the ovary like the balance between pro- and anti-apoptotic factors, follicular proliferation/apoptosis, and steroidogenesis, which may contribute to the follicular persistence and endocrine changes found in cattle with COD.
Collapse
Affiliation(s)
- Matías L Stangaferro
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Valentina Matiller
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina
| | - Pablo U Díaz
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina
| | - Hugo H Ortega
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina
| | - Florencia Rey
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina
| | - Fernanda M Rodríguez
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina
| | - Manuel A Silva
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Natalia R Salvetti
- Laboratorio de Biología Celular y Molecular Aplicada, Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina; Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina.
| |
Collapse
|
26
|
Age-associated changes in bovine oocytes and granulosa cell complexes collected from early antral follicles. J Assist Reprod Genet 2014; 31:1079-88. [PMID: 24830789 DOI: 10.1007/s10815-014-0251-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 05/07/2014] [Indexed: 01/07/2023] Open
Abstract
PURPOSE To assess the age-associated changes in oocytes and granulosa cells derived from early antral follicles (EAFs). METHOD Gene expression analysis of granulosa cells of the EAFs using a genome analyzer (Illumina) and in vitro culture of oocyte-granulosa cell complexes (OGCs) of EAFs (400-700 μm in diameter) collected from ovaries of aged (>120 months) and young (<50 months) cows. RESULTS Gene expression profiles in granulosa cells of EAFs of aged cows, which included changes in genes that encode chaperone proteins and antioxidants. In vivo development of EAFs, as determined by oocyte diameter of EAFs and AFs (3-6 mm in diameter), appeared to be impaired in aged cows and the OGCs of aged cows contained low GSH compared to younger counterparts. When the OGCs were cultured in a medium containing low estradiol (E2, 0.1 μg/mL), the ratio of antrum formation was higher for OGCs from aged animals than that from young animals, while higher abnormal fertilization rate and lower total cell number of the blastocysts were observed in the OGCs of aged cows compared with those of young cows. On the contrary, when the OGCs were cultured in a medium containing 10 μg/mL E2, the ratio of antrum formation and fertilization outcome was comparable between the two age groups, whereas the total cell number of the blastocysts was still low in the aged group. CONCLUSION Aging affects the gene expression profiles of the granulosa cells, and impairs in vitro developmental ability of OGCs collected from EAFs.
Collapse
|
27
|
Changes in the expression of Heat Shock Proteins in ovaries from bovines with cystic ovarian disease induced by ACTH. Res Vet Sci 2013; 95:1059-67. [DOI: 10.1016/j.rvsc.2013.07.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 06/12/2013] [Accepted: 07/13/2013] [Indexed: 02/08/2023]
|
28
|
Salvetti NR, Alfaro NS, Velázquez MML, Amweg AN, Matiller V, Díaz PU, Ortega HH. Alteration in localization of steroid hormone receptors and coregulatory proteins in follicles from cows with induced ovarian follicular cysts. Reproduction 2012; 144:723-35. [DOI: 10.1530/rep-12-0188] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Cystic ovarian disease (COD) is an important cause of infertility in cattle. The altered follicular dynamics and cellular differentiation observed in COD may be mediated through a disruption of the expression of steroid receptors and their associated transcriptional cofactors. The aim of this study was to determine the protein expression profiles of ESR1, ESR2, PGR, AR, NCOA3, NCOR2, and PHB2 (REA) in ovarian follicles in an experimental model of COD induced by the administration of ACTH. Ovaries were collected and follicles were dissected from heifers during the follicular phase (control) or from heifers treated with ACTH to induce the formation of ovarian follicular cysts. Ovaries were fixed, sectioned, and stained immunohistochemically for steroid receptors and the associated transcription factors. The relative expression of ESR1 was similar in follicular cysts and in tertiary follicles from both control and cystic cows and was significantly higher than in secondary follicles. The expression of ESR2 in the granulosa was higher in cystic follicles. No differences were seen for PGR. The expression of androgen receptor was significantly increased in tertiary follicles with lower immunostaining in cysts. The expression of NCOA3 was observed in the granulosa and theca with a significantly increased expression in the theca interna of cystic follicles. The highest levels of NCOR2 expression in granulosa, theca interna, and theca externa were observed in cysts. In granulosa cells, NCOR2 levels increase progressively as follicles mature and the treatment had no effect. In summary, ovaries from animals with induced COD exhibited altered steroid receptor expression compared with normal animals, as well as changes in the expression of their regulators. It is reasonable to suggest that in conditions characterized by altered ovulation and follicular persistence, such as COD, changes in the intra-ovarian expression of these proteins could play a role in their pathogenesis.
Collapse
|
29
|
Alfaro NS, Salvetti NR, Velazquez MM, Stangaferro ML, Rey F, Ortega HH. Steroid receptor mRNA expression in the ovarian follicles of cows with cystic ovarian disease. Res Vet Sci 2012; 92:478-85. [DOI: 10.1016/j.rvsc.2011.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 03/25/2011] [Accepted: 04/11/2011] [Indexed: 11/26/2022]
|
30
|
Park E, Cockrem JF, Han KH, Kim DH, Jung MH, Chu JP. Stress-induced activation of ovarian heat shock protein 90 in a rat model of polycystic ovary syndrome. J Obstet Gynaecol Res 2011; 38:396-407. [DOI: 10.1111/j.1447-0756.2011.01705.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
31
|
Levels of heat shock protein transcripts in normal follicles and ovarian follicular cysts. Reprod Biol 2011; 11:276-83. [DOI: 10.1016/s1642-431x(12)60072-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
32
|
Paredes AH, Salvetti NR, Diaz AE, Dallard BE, Ortega HH, Lara HE. Sympathetic nerve activity in normal and cystic follicles from isolated bovine ovary: local effect of beta-adrenergic stimulation on steroid secretion. Reprod Biol Endocrinol 2011; 9:66. [PMID: 21575217 PMCID: PMC3117772 DOI: 10.1186/1477-7827-9-66] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Accepted: 05/16/2011] [Indexed: 11/10/2022] Open
Abstract
Cystic ovarian disease (COD) is an important cause of abnormal estrous behavior and infertility in dairy cows. COD is mainly observed in high-yielding dairy cows during the first months post-partum, a period of high stress. We have previously reported that, in lower mammals, stress induces a cystic condition similar to the polycystic ovary syndrome in humans and that stress is a definitive component in the human pathology. To know if COD in cows is also associated with high sympathetic activity, we studied isolated small antral (5 mm), preovulatory (10 mm) and cystic follicles (25 mm). Cystic follicles which present an area 600 fold greater compared with preovulatory follicles has only 10 times less concentration of NE as compared with small antral and preovulatory follicles but they had 10 times more NE in follicular fluid, suggesting a high efflux of neurotransmitter from the cyst wall. This suggestion was reinforced by the high basal release of recently taken-up 3H-NE found in cystic follicles. While lower levels of beta-adrenergic receptor were found in cystic follicles, there was a heightened response to the beta-adrenergic agonist isoproterenol and to hCG, as measured by testosterone secretion. There was however an unexpected capacity of the ovary in vitro to produce cortisol and to secrete it in response to hCG but not to isoproterenol. These data suggest that, during COD, the bovine ovary is under high sympathetic nerve activity that in addition to an increased response to hCG in cortisol secretion could participate in COD development.
Collapse
Affiliation(s)
- Alfonso H Paredes
- Laboratory of Neurobiochemistry, Department of Biochemistry and Molecular Biology, Faculty of Chemistry and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| | - Natalia R Salvetti
- Morphological Sciences Department, Faculty of Veterinary Sciences, Universidad Nacional del Litoral (FCV-UNL), Esperanza, Santa Fe, Argentina & National Council for Science and Technology (CONICET), Argentina
| | - Ariel E Diaz
- Laboratory of Neurobiochemistry, Department of Biochemistry and Molecular Biology, Faculty of Chemistry and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| | - Bibiana E Dallard
- Morphological Sciences Department, Faculty of Veterinary Sciences, Universidad Nacional del Litoral (FCV-UNL), Esperanza, Santa Fe, Argentina & National Council for Science and Technology (CONICET), Argentina
| | - Hugo H Ortega
- Morphological Sciences Department, Faculty of Veterinary Sciences, Universidad Nacional del Litoral (FCV-UNL), Esperanza, Santa Fe, Argentina & National Council for Science and Technology (CONICET), Argentina
| | - Hernan E Lara
- Laboratory of Neurobiochemistry, Department of Biochemistry and Molecular Biology, Faculty of Chemistry and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile
| |
Collapse
|