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Codognoto VM, de Souza FF, Cataldi TR, Labate CA, de Camargo LS, Esteves Trindade PH, da Rosa Filho RR, de Oliveira DJB, Oba E. Proteomics approach reveals urinary markers for early pregnancy diagnosis in buffaloes. J Proteomics 2024; 290:105036. [PMID: 37879565 DOI: 10.1016/j.jprot.2023.105036] [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: 07/15/2023] [Revised: 09/21/2023] [Accepted: 10/12/2023] [Indexed: 10/27/2023]
Abstract
This study aimed to compare urine proteomics from non- and pregnant buffaloes in order to identify potential biomarkers of early pregnancy. Forty-four females underwent hormonal ovulation synchronization and were randomly divided into two experimental groups: inseminated (n = 30) and non-inseminated (n = 14). The pregnant females were further divided into two groups: pregnant at Day 12 (P12; n = 8) and at Day 18 (P18; n = 8) post-ovulation. The non-pregnant group was also subdivided into two groups: non-pregnant at Day 12 (NP12; n = 7) and at Day 18 (NP18; n = 7). Urine was collected from all females on Days 12 or 18. The samples were processed for proteomics. A total of 798 proteins were reported in the urine considering all groups. The differential proteins play essential roles during pregnancy, acting in cellular transport and metabolism, endometrial remodeling, embryonic protection, and degradation of defective proteins. We suggest that some proteins from our study can be considered biomarkers for early pregnancy diagnosis, since they were increased in pregnant buffaloes. SIGNIFICANCE: Macromolecules have been studied for early pregnancy diagnosis, aiming to increase reproductive efficiency in cattle and buffaloes. Direct methods such as rectal palpation and ultrasonography have been considered late. Thus, this study aimed to compare urine proteomics from non- and pregnant buffaloes to identify potential biomarkers of early pregnancy. The differential proteins found in our study play essential roles during pregnancy, acting in cellular transport and metabolism, endometrial remodeling, embryonic protection, and degradation of defective proteins. We suggest that these proteins can be considered possible biomarkers for early pregnancy diagnosis since they were increased in the pregnant buffaloes.
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Affiliation(s)
- Viviane M Codognoto
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Fabiana F de Souza
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Thais R Cataldi
- Department of Genetic, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| | - Carlos A Labate
- Department of Genetic, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| | - Laíza S de Camargo
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Pedro H Esteves Trindade
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Roberto R da Rosa Filho
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Campus São Paulo, São Paulo, Brazil
| | - Diego J B de Oliveira
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Eunice Oba
- Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil.
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Zeng H, Wang Q, Hu Z, Guo D, Yan Z, Fu H, Zhu Y. TT-10 may attenuate ibuprofen-induced ovarian injury in mice by activating COX2-PGE2 and inhibiting Hippo pathway. Reprod Toxicol 2024; 123:108499. [PMID: 37984603 DOI: 10.1016/j.reprotox.2023.108499] [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: 06/07/2023] [Revised: 10/21/2023] [Accepted: 11/10/2023] [Indexed: 11/22/2023]
Abstract
Ibuprofen (IBU) is a non-steroidal anti-inflammatory drug that has been found in recent years to cause ovarian damage. The aim of this study is to explore the molecular mechanisms of IBU damage to the ovary and drugs to combat it. We established in vivo (IBU doses of 50, 100 and 200 mg/kg-day) and in vitro (IBU concentrations of 50, 100 and 200 μM in culture medium) models of ovarian damage in mice simulating clinical doses and found that IBU not only caused ovarian damage in mice in a dose-response relationship, but also decreased estradiol (E2) and prostaglandin E2 (PGE2) levels in serum/media with increasing IBU doses. In damaged ovaries, the cyclooxygenase 2 (COX2)-PGE2 pathway is inhibited, the Hippo pathway is activated, circPVT1 is decreased, and miR-149 is elevated. TT-10 is an activator of YES-associated protein (YAP)-transcriptional enhancer factor domain activity. Then, 100 μM IBU-induced ovarian damage model was selected for YAP activation (Hippo pathway inhibition) experiment, and TT-10 was found to interfere with IBU-induced ovarian damage and increase E2 level in the medium, and 10 μM of TT-10 had the best protective effect. TT-10 also inhibited the Hippo pathway, activated the COX2-PGE2 pathway, elevated circPVT1 expression, and decreased miR-149 expression in the ovary. It has been hypothesized that clinical doses of IBU damage mouse ovaries by inhibiting COX2-PGE2 and activating the Hippo pathway, whereas TT-10 protects the ovaries through the inverse regulation of these two pathways.
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Affiliation(s)
- Hongling Zeng
- Department of Lymphoma and Hematology (Children's Oncology Center), Hunan Cancer Hospital, Changsha 410013, Hunan, China
| | - Qing Wang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, Hunan, China
| | - Zhenmin Hu
- School of Medicine, Yueyang Vocational Technical College, Yueyang 414006, Hunan, China
| | - Daying Guo
- School of Nursing, Yiyang Medical College, Yiyang 413002, Hunan, China
| | - Zhengli Yan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, Hunan, China
| | - Hu Fu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, Hunan, China.
| | - Yongfei Zhu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, Hunan, China.
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Jeon H, Choi Y, Brännström M, Akin JW, Curry TE, Jo M. Cortisol/glucocorticoid receptor: a critical mediator of the ovulatory process and luteinization in human periovulatory follicles. Hum Reprod 2023; 38:671-685. [PMID: 36752644 PMCID: PMC10068287 DOI: 10.1093/humrep/dead017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 01/03/2023] [Indexed: 02/09/2023] Open
Abstract
STUDY QUESTION Do cortisol/glucocorticoid receptors play an active role in the human ovary during ovulation and early luteinization? SUMMARY ANSWER The ovulatory hCG stimulation-induced glucocorticoid receptor signaling plays a crucial role in regulating steroidogenesis and ovulatory cascade in human periovulatory follicles. WHAT IS KNOWN ALREADY Previous studies reported an increase in cortisol levels in the human follicular fluid after the LH surge or ovulatory hCG administration. However, little is known about the role of cortisol/glucocorticoid receptors in the ovulatory process and luteinization in humans. STUDY DESIGN, SIZE, DURATION This study was an experimental prospective clinical and laboratory-based study. An in vivo experimental study was accomplished utilizing the dominant ovarian follicles from 38 premenopausal women undergoing laparoscopic sterilization. An in vitro experimental study was completed using the primary human granulosa/lutein cells (hGLC) from 26 premenopausal women undergoing IVF. PARTICIPANTS/MATERIALS, SETTING, METHODS This study was conducted in a private fertility clinic and academic medical centers. Dominant ovarian follicles were collected before the LH surge and at defined times after hCG administration from women undergoing laparoscopic sterilization. Primary hGLC were collected from women undergoing IVF. hGLC were treated without or with hCG in the absence or presence of RU486 (20 µM; dual antagonist for progesterone receptor and glucocorticoid receptor) or CORT125281 (50 µM; selective glucocorticoid receptor antagonist) for 12 or 36 h. The expression of genes involved in glucocorticoid receptor signaling, steroidogenesis, and ovulatory cascade was studied with RT-quantitative PCR and western blotting. The production of cortisol, corticosterone, and progesterone was assessed by hormone assay kits. MAIN RESULTS AND THE ROLE OF CHANCE hCG administration upregulated the expression of hydroxysteroid 11-beta dehydrogenase 1 (HSD11B1), nuclear receptor subfamily 3 group C member 1 (NR3C1), FKBP prolyl isomerase 5 (FKBP5), and FKBP prolyl isomerase 4 (FKBP4) in human ovulatory follicles and in hGLC (P < 0.05). RU486 and CORT125281 reduced hCG-induced increases in progesterone and cortisol production in hGLC. The expression of genes involved in glucocorticoid receptor signaling, steroidogenesis, and the key ovulatory process was reduced by RU486 and/or CORT125281 in hGLC. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The role of cortisol/glucocorticoid receptors demonstrated using the hGLC model may not fully reflect their physiological roles in vivo. WIDER IMPLICATIONS OF THE FINDINGS Successful ovulation and luteinization are essential for female fertility. Women with dysregulated cortisol levels often suffer from anovulatory infertility. Deciphering the functional role of glucocorticoid receptor signaling in human periovulatory follicles enhances our knowledge of basic ovarian physiology and may provide therapeutic insights into treating infertility in women. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by P01HD71875 (to M.J., T.E.C., and M.B.) and R01HD096077 (to M.J.) from the Foundation for the National Institutes of Health and the BTPSRF of the University of Kentucky Markey Cancer Center (P30CA177558). The authors report no competing interests. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- H Jeon
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, KY, USA
- Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Y Choi
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - M Brännström
- Department of Obstetrics and Gynecology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Stockholm IVF, Stockholm, Sweden
| | - J W Akin
- Bluegrass Fertility Center, Lexington, KY, USA
| | - T E Curry
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - M Jo
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, KY, USA
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Yerushalmi GM, Shuraki B, Yung Y, Maman E, Baum M, Hennebold JD, Adashi EY, Hourvitz A. ABCC4 is a PGE2 efflux transporter in the ovarian follicle: A mediator of ovulation and a potential non-hormonal contraceptive target. FASEB J 2023; 37:e22858. [PMID: 36943419 DOI: 10.1096/fj.202101931rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 01/12/2023] [Accepted: 02/22/2023] [Indexed: 03/23/2023]
Abstract
The role of prostaglandins (PGs) in the ovulatory process is known. However, the role of the ATP binding cassette subfamily C member 4 (ABCC4), transmembrane PG carrier protein, in ovulation remains unknown. We report herein that ABCC4 expression is significantly upregulated in preovulatory human granulosa cells (GCs). We found that PGE2 efflux in cultured human GCs is mediated by ABCC4 thus regulating its extracellular concentration. The ABCC4 inhibitor probenecid demonstrated effective blocking of ovulation and affects key ovulatory genes in female mice in vivo. We postulate that the reduction in PGE2 efflux caused by the inhibition of ABCC4 activity in GCs decreases the extracellular concentration of PGE2 and its ovulatory effect. Treatment of female mice with low dose of probenecid as well as with the PTGS inhibitor indomethacin or Meloxicam synergistically blocks ovulation. These results support the hypothesis that ABCC4 has an important role in ovulation and might be a potential target for non-hormonal contraception, especially in combination with PGE2 synthesis inhibitors. These findings may fill the gap in understanding the role of ABCC4 in PGE2 signaling, enhance the understanding of ovulatory disorders, and facilitate the treatment and control of fertility.
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Affiliation(s)
- Gil M Yerushalmi
- Reproduction Laboratory and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv), Tel Hashomer, Israel
- IVF Unit, Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center) (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv), Zerifin, Israel
| | - Batel Shuraki
- Reproduction Laboratory and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv), Tel Hashomer, Israel
| | - Yuval Yung
- Reproduction Laboratory and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv), Tel Hashomer, Israel
| | - Ettie Maman
- Reproduction Laboratory and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv), Tel Hashomer, Israel
| | - Micha Baum
- Reproduction Laboratory and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv), Tel Hashomer, Israel
| | - Jon D Hennebold
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Eli Y Adashi
- Department of Medical Science and Obstetrics and Gynecology, the Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
- Department of Obstetrics and Gynecology, the Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Ariel Hourvitz
- Reproduction Laboratory and IVF Unit, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv), Tel Hashomer, Israel
- IVF Unit, Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center) (affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv), Zerifin, Israel
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Martínez-Boví R, Plaza-Dávila M, Cuervo-Arango J. The effect of dexamethasone and flunixin-meglumine on ovulation, endometrial oedema, and inter-ovulatory interval length in the mare. Theriogenology 2023; 197:57-61. [PMID: 36470110 DOI: 10.1016/j.theriogenology.2022.11.042] [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: 11/20/2022] [Revised: 11/25/2022] [Accepted: 11/26/2022] [Indexed: 11/30/2022]
Abstract
The use of flunixin-meglumine (a potent non-steroidal anti-inflammatory drug) during the critical period of intrafollicular prostaglandin production before ovulation (24 and 36 h after hCG treatment) results in a high rate of ovulatory failure and formation of haemorrhagic anovulatory follicles (HAF) in the mare. Dexamethasone is commonly used to prevent persistent mating-induced endometritis in susceptible mares, but the effect on ovulation blockage within the pre-ovulatory critical window of intrafollicular prostaglandins production following hCG administration has not been determined. Six mares were followed during four consecutive cycles in a crossover design; once in oestrus with a follicle of >32 mm in diameter, mares were treated with hCG (Hour 0) and assigned to one of 4 groups randomly: 1) FM, mares received 1.7 mg/kg flunixin-meglumine at Hour 24 and 36; 2) CON, mares received no further treatment. 3) DEX1, mares received 0.1 mg/kg dexamethasone at Hour 24, and 4) DEX2, mares received 0.1 mg/kg dexamethasone at Hour 24 and 36. For all groups, ovulation and HAF rates, endometrial oedema profiles and the inter-ovulatory intervals (IOI) were determined and compared statistically. All CON and DEX mares ovulated normally and did not form any HAF. On the contrary, FM mares developed a HAF in 83% of cycles (P < 0.01). The endometrial oedema score was lower following DEX administration than FM (P < 0.05). The mean IOI was longer (P < 0.05) in DEX1 and DEX2 groups (26.5 and 26 days, respectively) than in CON and FM groups (21.5 and 22 days, respectively). In conclusion, dexamethasone treatment given either once or twice during the critical window of hCG-induced ovulation did not block or delay ovulation, but had a similar ovulation rate than untreated control mares. However, the inter-ovulatory intervals of dexamethasone treated mares was longer than control and FM treated mares. Finally, dexamethasone treatment was more effective in reducing endometrial oedema than FM.
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Affiliation(s)
- Rebeca Martínez-Boví
- Equine Fertility Group, Faculty of Veterinary Medicine, Universidad CEU Cardenal Herrera, CEU Universities, Alfara del Patriarca, Valencia, Spain
| | - María Plaza-Dávila
- Equine Fertility Group, Faculty of Veterinary Medicine, Universidad CEU Cardenal Herrera, CEU Universities, Alfara del Patriarca, Valencia, Spain
| | - Juan Cuervo-Arango
- Equine Fertility Group, Faculty of Veterinary Medicine, Universidad CEU Cardenal Herrera, CEU Universities, Alfara del Patriarca, Valencia, Spain.
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Zhou F, Zhong LL, Tan Y, Liu L, Pei G. A metabolomic approach to study triptolide-induced ovarian damage in rats. Toxicology 2022; 482:153351. [DOI: 10.1016/j.tox.2022.153351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/30/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022]
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Pereira de Moraes F, Amaral D'Avila C, Caetano de Oliveira F, Ávila de Castro N, Diniz Vieira A, Schneider A, Machado Pfeifer LF, Cantarelli Pegoraro LM, Ferreira R, Germano Ferst J, Tomazele Rovani M, Nunes Correa M, Dias Gonçalves PB, Lucia T, Garziera Gasperin B. Prostaglandin F2α regulation and function during ovulation and luteinization in cows. Theriogenology 2021; 171:30-37. [PMID: 34004368 DOI: 10.1016/j.theriogenology.2021.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/13/2022]
Abstract
Although prostaglandins are important in the ovulation process, a precise role for prostaglandin F2α (PGF) has not been elucidated. This study aimed to evaluate the regulation of PGF receptor mRNA (PTGFR) in granulosa cells and the local effect of PGF on ovulation and luteinization. In Experiment 1, using samples collected in vivo before (Day 2), during (Day 3) and after (Day 4) follicular deviation, expression of PTGFR in bovine granulosa cells was more abundant in the dominant follicle after deviation than in subordinates (P < 0.05). However, the expression of PTGFR was not regulated (P = 0.1) in preovulatory follicles at different time-points (0, 3, 6, 12 and 24 h) after ovulation induction with GnRH. In Experiment 2, to assess the role of systemic PGF treatment on luteinization and vascularization of preovulatory follicles, flunixin meglumine (FM), a nonsteroidal anti-inflammatory drug, was used to inhibit endogenous prostaglandin synthesis. Cows with preovulatory follicles were induced to ovulate with GnRH (0 h) and allocated to three groups: Control, with no further treatment; FM, treated with 2.2 mg/kg FM im 17 h after GnRH treatment; and FM + PGF, treated with FM 17 h after GnRH, followed by 25 mg dinoprost tromethamine (PGF) 23 h after GnRH treatment. FM injection was able to reduce the concentration of PGF in the follicular fluid (FF) (P < 0.001). However, contrary to our hypothesis, color Doppler ultrasound evaluations revealed decreased vascular flow in FM + PGF group (P < 0.05), and no effect of the treatments on intrafollicular P4 and E2 concentrations 24 h after GnRH. The prostaglandin metabolite (PGFM) concentrations in the FF were greater in cows receiving systemic PGF (P < 0.001), which prompted us to further check its role on ovulation. Therefore, in Experiment 3, in a final attempt to demonstrate the local effect of PGF on ovulation, cows with preovulatory follicles received an intrafollicular injection (IFI) of PBS (Control) or 100 ng/mL purified PGF (PGF group). PGF treatment did not affect the time of ovulation after IFI (66 ± 6.4 and 63 ± 8.5 h for control and PGF, respectively; P > 0.05), further suggesting that it has no direct effect in the ovulatory process. Based on our findings, we concluded that FM decreased PGF synthesis within the follicle, whereas PGF treatment decreased follicular vascularization. In addition, the in vivo model of intrafollicular injection evidenced that PGF alone is not able to locally induce ovulation.
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Affiliation(s)
| | - Camila Amaral D'Avila
- Graduate Program in Veterinary Medicine, Federal University of Pelotas, Capão do Leão, RS, Brazil
| | | | - Natália Ávila de Castro
- Graduate Program in Veterinary Medicine, Federal University of Pelotas, Capão do Leão, RS, Brazil
| | - Arnaldo Diniz Vieira
- Graduate Program in Veterinary Medicine, Federal University of Pelotas, Capão do Leão, RS, Brazil
| | - Augusto Schneider
- Graduate Program in Veterinary Medicine, Federal University of Pelotas, Capão do Leão, RS, Brazil
| | | | | | - Rogério Ferreira
- Department of Animal Science, Santa Catarina State University, Chapecó, SC, Brazil
| | - Juliana Germano Ferst
- Graduate Program in Veterinary Medicine, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Monique Tomazele Rovani
- Department of Animal Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Márcio Nunes Correa
- Graduate Program in Veterinary Medicine, Federal University of Pelotas, Capão do Leão, RS, Brazil
| | - Paulo Bayard Dias Gonçalves
- Graduate Program in Veterinary Medicine, Federal University of Santa Maria, Santa Maria, RS, Brazil; Molecular and Integrative Physiology of Reproduction Laboratory, MINT, Federal University of Pampa, Uruguaiana, RS, Brazil
| | - Thomaz Lucia
- Graduate Program in Veterinary Medicine, Federal University of Pelotas, Capão do Leão, RS, Brazil
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De Los Reyes M, Palomino J, Araujo A, Flores J, Ramirez G, Parraguez VH, Aspee K. Cyclooxygenase 2 messenger RNA levels in canine follicular cells: interrelationship with GDF-9, BMP-15, and progesterone. Domest Anim Endocrinol 2021; 74:106529. [PMID: 32890884 DOI: 10.1016/j.domaniend.2020.106529] [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: 04/19/2020] [Revised: 07/18/2020] [Accepted: 07/19/2020] [Indexed: 01/05/2023]
Abstract
Cyclooxygenase 2 (COX-2) encoded by the Cox-2 gene within the periovulatory follicles is a critical mediator of oocyte development. Growth differentiation factor 9 (GDF-9) and bone morphogenetic protein 15 (BMP-15) participate in the modulation of certain target genes in the ovary, possibly influencing the Cox-2 gene expression. However, this relationship has not been characterized in canines. This study aimed to examine the possible relationships among BMP-15, GDF-9, progesterone, and Cox-2 gene expression in granulosa-cumulus cells in dogs. Granulosa cells from antral follicles and their corresponding cumulus-oocyte complexes and follicular fluid (FF) were separately obtained from 56 ovaries collected from adult bitches at estrus (n = 15) and proestrus (n = 13) after ovariohysterectomy. Total RNA extraction was performed in follicular cells, and Cox-2 gene expression was assessed by quantitative PCR analysis. Progesterone, BMP-15, and GDF-9 were determined in the FF samples using ELISA assays. Cumulus-oocyte complexes were subjected to in vitro maturation (IVM) with or without (control) recombinant GDF-9 and BMP-15. After 72 h of culture, Cox-2 transcript analyses were performed in cumulus cells via quantitative PCR. Data were evaluated by ANOVA. An increase (P < 0.05) in Cox-2 messenger RNA levels was observed in follicular cells from follicles at estrus with respect to those at proestrus. However, the levels of BMP-15 and GDF-9 in FF decreased (P < 0.05), whereas progesterone increased (P < 0.05) from the proestrus phase to the estrus phase. The expression of Cox-2 gene in cumulus cells was 4-fold greater (P < 0.01) than that in the control when both growth factors were added to the IVM culture. In conclusion, although BMP-15 together with GDF-9 appears to upregulate the levels of Cox-2 transcripts during IVM, the inverse relationship of these paracrine factors with Cox-2 gene expression and the positive correlation of progesterone with Cox-2 transcripts suggest that the high progesterone levels could be more relevant in the local mechanisms regulating the Cox-2 gene expression.
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Affiliation(s)
- M De Los Reyes
- Laboratory of Animal Reproduction, Department of Animal Production, Faculty of Veterinary Sciences, University of Chile, Santa Rosa 11735, La Pintana, Santiago, Chile.
| | - J Palomino
- Laboratory of Animal Reproduction, Department of Animal Production, Faculty of Veterinary Sciences, University of Chile, Santa Rosa 11735, La Pintana, Santiago, Chile
| | - A Araujo
- Laboratory of Animal Reproduction, Department of Animal Production, Faculty of Veterinary Sciences, University of Chile, Santa Rosa 11735, La Pintana, Santiago, Chile
| | - J Flores
- Laboratory of Animal Reproduction, Department of Animal Production, Faculty of Veterinary Sciences, University of Chile, Santa Rosa 11735, La Pintana, Santiago, Chile
| | - G Ramirez
- Laboratory of Animal Reproduction, Department of Animal Production, Faculty of Veterinary Sciences, University of Chile, Santa Rosa 11735, La Pintana, Santiago, Chile
| | - V H Parraguez
- Laboratory of Animal Physiology, Department of Biological Sciences, Faculty of Veterinary Sciences, University of Chile, Santa Rosa, 11735, La Pintana, Santiago, Chile
| | - K Aspee
- Laboratory of Animal Reproduction, Department of Animal Production, Faculty of Veterinary Sciences, University of Chile, Santa Rosa 11735, La Pintana, Santiago, Chile
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9
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Fowler LA, Dennis-Cornelius LN, Dawson JA, Barry RJ, Davis JL, Powell ML, Yuan Y, Williams MB, Makowsky R, D'Abramo LR, Watts SA. Both Dietary Ratio of n-6 to n-3 Fatty Acids and Total Dietary Lipid Are Positively Associated with Adiposity and Reproductive Health in Zebrafish. Curr Dev Nutr 2020; 4:nzaa034. [PMID: 32258992 PMCID: PMC7108797 DOI: 10.1093/cdn/nzaa034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/21/2020] [Accepted: 03/03/2020] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Controversial findings have been reported in human and animal studies regarding the influence of n-6 (ω-6) to n-3 (ω-3) fatty acid ratios on obesity and health. Two confounding factors may be related to interactions with other dietary lipid components or sex-specific differences in fatty acid metabolism. OBJECTIVE This study investigated main and interactive effects of total dietary lipid, ratio of n-6 to n-3 fatty acids, and sex on growth, adiposity, and reproductive health in wild-type zebrafish. METHODS Male and female zebrafish (3 wk old) were fed 9 diets consisting of 3 ratios of n-6 to n-3 fatty acids (1.4:1, 5:1, and 9.5:1) varied within 3 total lipid amounts (80, 110, and 140 g/kg) for 16 wk. Data were then collected on growth, body composition (determined by chemical carcass analysis), and female reproductive success (n = 32 breeding events/diet over 4 wk). Main and interactive effects of dietary lipid and sex were evaluated with regression methods. Significant differences within each dietary lipid component were relative to the intercept/reference group (80 g/kg and 1.4:1 ratio). RESULTS Dietary lipid and sex interacted in their effects on body weight (P = 0.015), total body length (P = 0.003), and total lipid mass (P = 0.029); thus, these analyses were stratified by sex. Female spawning success decreased as dietary total lipid and fatty acid ratio increased (P = 0.030 and P = 0.026, respectively). While total egg production was not associated with either dietary lipid component, females fed the 5:1 ratio produced higher proportions of viable embryos compared with the 1.4:1 ratio [median (95% CI): 0.915 (0.863, 0.956) vs 0.819 (0.716, 0.876); P < 0.001]. CONCLUSIONS Further characterization of dietary lipid requirements will help define healthy balances of dietary lipid, while the sex-specific responses to dietary lipid identified in this study may partially explain sex disparities in the development of obesity and its comorbidities.
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Affiliation(s)
- Lauren A Fowler
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - John A Dawson
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - Robert J Barry
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - James L Davis
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Mickie L Powell
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Yuan Yuan
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael B Williams
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Louis R D'Abramo
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stephen A Watts
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
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Periovulatory administration of firocoxib did not alter ovulation rates and mitigated post-breeding inflammatory response in mares. Theriogenology 2019; 138:24-30. [PMID: 31280182 DOI: 10.1016/j.theriogenology.2019.06.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 06/28/2019] [Accepted: 06/28/2019] [Indexed: 12/31/2022]
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) are a therapeutic option for the treatment of inflammation. However, negative effects of non-selective NSAIDs for treatment of mares with endometritis have been described, including delayed uterine clearance and impairment of ovulations. Firocoxib is a specific cyclooxygenase-2 (COX-2) inhibitor and has the ability to act in the uterus of mares. We investigated the effects of firocoxib on ovulation rate, numbers of polymorphonuclear neutrophils (PMNs), and COX-2 protein levels in the endometrial tissue of susceptible mares after insemination. Two experiments were conducted. In experiment 1, twenty mares were evaluated in two consecutive estrous cycles broken into the following groups: Control - no pharmacological interference; Treatment - mares were treated with 0.2 mg/kg of firocoxib orally. The treatment began on the day of ovulation induction, and firocoxib was administered until one day after artificial insemination (AI). Ovulation was induced with 1 mg of deslorelin acetate and the mares were inseminated 24 h after the injection. Ovulation was confirmed 48 h after induction, and embryos were collected eight days after ovulation. Experiment 2: Nine mares susceptible to persistent mating-induced endometritis (PMIE) were artificially inseminated. The mares were examined with ultrasound and inseminated with fresh semen in two consecutive cycles, control and treated, in a cross-over study design. The amount of intrauterine fluid was measured, and endometrial samples were collected 24 h after AI. The number of PMNs was determined by endometrial cytology and biopsy, and COX-2 labeling in endometrial samples was evaluated by immunohistochemistry. Firocoxib treatment did not induce ovulatory failure or affect embryo recovery rate in Experiment 1. In Experiment 2, firocoxib treatment reduced inflammation after AI in mares as evidenced with results regarding PMN numbers/percentage and endometrial COX-2 staining. In conclusion, the proposed treatment with firocoxib reduced endometrial inflammation in mares susceptible to PMIE after breeding, with no adverse effects.
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Donnelly CG, Sones JL, Dockweiler JC, Norberg LA, Norberg LE, Cheong SH, Gilbert RO. Effects of flunixin meglumine on postponement of ovulation in mares. Am J Vet Res 2019; 80:306-310. [PMID: 30801209 DOI: 10.2460/ajvr.80.3.306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate use of flunixin meglumine as a treatment to postpone ovulation in mares, mare fertility after flunixin meglumine treatment during estrous cycles, and effects of flunixin meglumine on function of the corpus luteum after ovulation. ANIMALS 13 healthy mares. PROCEDURES A single-blinded, placebo-controlled, crossover study was conducted. Flunixin meglumine (1.1 mg/kg, IV, q 24 h) or lactated Ringer solution (placebo treatment) was administered for 2 days to mares with a dominant follicle (≥ 35 mm in diameter) and behavioral signs of estrus. Mares then were bred by artificial insemination. Number of days to ovulation from initial detection of a follicle ≥ 30 mm in diameter, uterine edema score, and pregnancy were determined by ultrasonography; the examiner was unaware of the treatment of each mare. Serum progesterone concentrations were evaluated 5 and 12 days after ovulation by use of radioimmunoassay. RESULTS Data were available for 45 estrus cycles of the 13 mares. Number of days to ovulation from initial detection of a follicle ≥ 30 mm was not significantly affected by administration of flunixin meglumine versus the placebo. Per-cycle pregnancy rate was not significantly different between flunixin meglumine (20/24 [83%] breedings) and the placebo (13/19 [68%] breedings). Flunixin meglumine did not significantly affect behavioral signs of estrus, uterine edema, or serum progesterone concentrations. CONCLUSIONS AND CLINICAL RELEVANCE Findings did not support the use of flunixin meglumine to postpone ovulation in mares.
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Duffy DM, Ko C, Jo M, Brannstrom M, Curry TE. Ovulation: Parallels With Inflammatory Processes. Endocr Rev 2019; 40:369-416. [PMID: 30496379 PMCID: PMC6405411 DOI: 10.1210/er.2018-00075] [Citation(s) in RCA: 233] [Impact Index Per Article: 46.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 11/18/2018] [Indexed: 12/14/2022]
Abstract
The midcycle surge of LH sets in motion interconnected networks of signaling cascades to bring about rupture of the follicle and release of the oocyte during ovulation. Many mediators of these LH-induced signaling cascades are associated with inflammation, leading to the postulate that ovulation is similar to an inflammatory response. First responders to the LH surge are granulosa and theca cells, which produce steroids, prostaglandins, chemokines, and cytokines, which are also mediators of inflammatory processes. These mediators, in turn, activate both nonimmune ovarian cells as well as resident immune cells within the ovary; additional immune cells are also attracted to the ovary. Collectively, these cells regulate proteolytic pathways to reorganize the follicular stroma, disrupt the granulosa cell basal lamina, and facilitate invasion of vascular endothelial cells. LH-induced mediators initiate cumulus expansion and cumulus oocyte complex detachment, whereas the follicular apex undergoes extensive extracellular matrix remodeling and a loss of the surface epithelium. The remainder of the follicle undergoes rapid angiogenesis and functional differentiation of granulosa and theca cells. Ultimately, these functional and structural changes culminate in follicular rupture and oocyte release. Throughout the ovulatory process, the importance of inflammatory responses is highlighted by the commonalities and similarities between many of these events associated with ovulation and inflammation. However, ovulation includes processes that are distinct from inflammation, such as regulation of steroid action, oocyte maturation, and the eventual release of the oocyte. This review focuses on the commonalities between inflammatory responses and the process of ovulation.
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Affiliation(s)
- Diane M Duffy
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - CheMyong Ko
- Department of Comparative Biosciences, University of Illinois Urbana Champaign, Urbana, Illinois
| | - Misung Jo
- Department of Obstetrics and Gynecology, University of Kentucky, Lexington, Kentucky
| | - Mats Brannstrom
- Department of Obstetrics and Gynecology, University of Gothenburg, Gothenburg, Sweden.,Stockholm IVF, Stockholm, Sweden
| | - Thomas E Curry
- Department of Obstetrics and Gynecology, University of Kentucky, Lexington, Kentucky
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Berisha B, Rodler D, Schams D, Sinowatz F, Pfaffl MW. Prostaglandins in Superovulation Induced Bovine Follicles During the Preovulatory Period and Early Corpus Luteum. Front Endocrinol (Lausanne) 2019; 10:467. [PMID: 31354631 PMCID: PMC6635559 DOI: 10.3389/fendo.2019.00467] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/27/2019] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to characterize the regulation pattern of prostaglandin family members namely prostaglandin F2alpha (PTGF), prostaglandin E2 (PTGE), their receptors (PTGFR, PTGER2, PTGER4), cyclooxygenase 2 (COX-2), PTGF synthase (PTGFS), and PTGE synthase (PTGES) in the bovine follicles during preovulatory period and early corpus luteum (CL). Ovaries containing preovulatory follicles or CL were collected by transvaginal ovariectomy (n = 5 cows/group), and the follicles were classified: (I) before GnRH treatment; (II) 4 h after GnRH; (III) 10 h after GnRH; (IV) 20 h after GnRH; (V) 25 h after GnRH, and (VI) 60 h after GnRH (early CL). In these samples, the concentrations of progesterone (P4), estradiol (E2), PTGF and PTGE were investigated in the follicular fluid (FF) by validated EIA. Relative mRNA abundance of genes encoding for prostaglandin receptors (PTGFR, PTGER2, PTGER4), COX-2, PTGFS and PTGES were quantified by RT-qPCR. The localization of COX-2 and PTGES were investigated by established immunohistochemistry in fixed follicular and CL tissue samples. The high E2 concentration in the FF of the follicle group before GnRH treatment (495.8 ng/ml) and during luteinizing hormone (LH) surge (4 h after GnRH, 574.36 ng/ml), is followed by a significant (P<0.05) downregulation afterwards with the lowest level during ovulation (25 h after GnRH, 53.11 ng/ml). In contrast the concentration of P4 was very low before LH surge (50.64 mg/ml) followed by a significant upregulation (P < 0.05) during ovulation (537.18 ng/ml). The mRNA expression of COX-2 increased significantely (P < 0.05) 4 h after GnRH and again 20 h after GnRH, followed by a significant decrease (P < 0.05) after ovulation (early CL). The mRNA of PTGFS in follicles before GnRH was high followed by a continuous and significant downregulation (P < 0.05) afterwards. In contrast, PTGES mRNA abundance increased significantely (P < 0.05) in follicles 20 h after GnRH treatment and remained high afterwards. The mRNA abundance of PTGFR, PTGER2, and PTGER4 in follicles before GnRH was high, followed by a continuous and significant down regulation afterwards and significant increase (P < 0.05) only after ovulation (early CL). The low concentration of PTGF (0.04 ng/ml) and PTGE (0.15 ng/ml) in FF before GnRH, increased continuously in follicle groups before ovulation and displayed a further significant and dramatic increase (P < 0.05) around ovulation (101.01 ng/ml, respectively, 484.21 ng/ml). Immunohistochemically, the granulosa cells showed an intensive signal for COX-2 and PTGES in follicles during preovulation and in granulosa-luteal cells of the early CL. In conclusion, our results indicate that the examined bovine prostaglandin family members are involved in the local mechanisms regulating final follicle maturation and ovulation during the folliculo-luteal transition and CL formation.
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Affiliation(s)
- Bajram Berisha
- Department of Animal Biotechnology, Faculty of Agriculture and Veterinary, University of Prishtina, Pristina, Kosovo
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
- *Correspondence: Bajram Berisha
| | - Daniela Rodler
- Department of Veterinary Sciences, Ludwig Maximilian University of Munich, Munich, Germany
| | - Dieter Schams
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
| | - Fred Sinowatz
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
| | - Michael W. Pfaffl
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
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Bou Nemer L, Shi H, Carr BR, Word RA, Bukulmez O. Effect of single-dose ibuprofen on follicular fluid levels of interleukins in poor responders undergoing in vitro fertilization. Syst Biol Reprod Med 2018; 65:48-53. [DOI: 10.1080/19396368.2018.1557761] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Laurice Bou Nemer
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility and the Cecil H and Ida Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Haolin Shi
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility and the Cecil H and Ida Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Bruce Richard Carr
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility and the Cecil H and Ida Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ruth Ann Word
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility and the Cecil H and Ida Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Orhan Bukulmez
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility and the Cecil H and Ida Green Center for Reproductive Biological Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
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15
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Niringiyumukiza JD, Cai H, Xiang W. Prostaglandin E2 involvement in mammalian female fertility: ovulation, fertilization, embryo development and early implantation. Reprod Biol Endocrinol 2018; 16:43. [PMID: 29716588 PMCID: PMC5928575 DOI: 10.1186/s12958-018-0359-5] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/20/2018] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Infertility in mammalian females has been a challenge in reproductive medicine. The causes of female infertility include anovulation, ovulated oocyte defects, abnormal fertilization, and insufficient luteal support for embryo development, as well as early implantation. Ovulation induction, in vitro fertilization and luteal support regimens have been performed for decades to increase fertility rates. The identification of proteins and biochemical factors involved in female reproduction is essential to further increase female fertility rates. Evidence has shown that prostaglandins (PGs) might be involved in the female reproductive process, mainly ovulation, fertilization, and implantation. However, only a few studies on individual PGs in female reproduction have been done so far. This review aimed to identify the pivotal role of prostaglandin E2 (PGE2), a predominant PG, in female reproduction to improve fertility, specifically ovulation, fertilization, embryo development and early implantation. RESULTS Prostaglandin E2 (PGE2) was shown to play a relevant role in the ovulatory cascade, including meiotic maturation, cumulus expansion and follicle rupture, through inducing ovulatory genes, such as Areg, Ereg, Has2 and Tnfaip6, as well as increasing intracellular cAMP levels. PGE2 reduces extracellular matrix viscosity and thereby optimizes the conditions for sperm penetration. PGE2 reduces the phagocytic activity of polymorphonuclear neutrophils (PMNs) against sperm. In the presence of PGE2, sperm function and binding capacity to oocytes are enhanced. PGE2 maintains luteal function for embryo development and early implantation. In addition, it induces chemokine expression for trophoblast apposition and adhesion to the decidua for implantation. CONCLUSION It has been shown that PGE2 positively affects different stages of female fertility. Therefore, PGE2 should be taken into consideration when optimizing reproduction in infertile females. We suggest that in clinical practice, the administration of non-steroidal anti-inflammatory drugs, which are PGE2 synthesis inhibitors, should be reasonable and limited in infertile women. Additionally, assessments of PGE2 protein and receptor expression levels should be taken into consideration.
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Affiliation(s)
- Jean Damascene Niringiyumukiza
- 0000 0004 0368 7223grid.33199.31Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Hongcai Cai
- 0000 0004 0368 7223grid.33199.31Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Wenpei Xiang
- 0000 0004 0368 7223grid.33199.31Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
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16
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Choi Y, Wilson K, Hannon PR, Rosewell KL, Brännström M, Akin JW, Curry TE, Jo M. Coordinated Regulation Among Progesterone, Prostaglandins, and EGF-Like Factors in Human Ovulatory Follicles. J Clin Endocrinol Metab 2017; 102:1971-1982. [PMID: 28323945 PMCID: PMC5470773 DOI: 10.1210/jc.2016-3153] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 03/06/2017] [Indexed: 01/12/2023]
Abstract
CONTEXT In animal models, the luteinizing hormone surge increases progesterone (P4) and progesterone receptor (PGR), prostaglandins (PTGs), and epidermal growth factor (EGF)-like factors that play essential roles in ovulation. However, little is known about the expression, regulation, and function of these key ovulatory mediators in humans. OBJECTIVE To determine when and how these key ovulatory mediators are induced after the luteinizing hormone surge in human ovaries. DESIGN AND PARTICIPANTS Timed periovulatory follicles were obtained from cycling women. Granulosa/lutein cells were collected from in vitro fertilization patients. MAIN OUTCOME MEASURES The in vivo and in vitro expression of PGR, PTG synthases and transporters, and EGF-like factors were examined at the level of messenger RNA and protein. PGR binding to specific genes was assessed. P4 and PTGs in conditioned media were measured. RESULTS PGR, PTGS2, and AREG expressions dramatically increased in ovulatory follicles at 12 to 18 hours after human chorionic gonadotropin (hCG). In human granulosa/lutein cell cultures, hCG increased P4 and PTG production and the expression of PGR, specific PTG synthases and transporters, and EGF-like factors, mimicking in vivo expression patterns. Inhibitors for P4/PGR and EGF-signaling pathways reduced hCG-induced increases in PTG production and the expression of EGF-like factors. PGR bound to the PTGS2, PTGES, and SLCO2A1 genes. CONCLUSIONS This report demonstrated the time-dependent induction of PGR, AREG, and PTGS2 in human periovulatory follicles. In vitro studies indicated that collaborative actions of P4/PGR and EGF signaling are required for hCG-induced increases in PTG production and potentiation of EGF signaling in human periovulatory granulosa cells.
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Affiliation(s)
- Yohan Choi
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky 40536
| | - Kalin Wilson
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky 40536
| | - Patrick R Hannon
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky 40536
| | - Katherine L Rosewell
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky 40536
| | - Mats Brännström
- Department of Obstetrics and Gynecology, University of Gothenburg, 405 30 Gothenburg, Sweden
- Stockholm IVF, 112 81 Stockholm, Sweden
| | - James W Akin
- Bluegrass Fertility Center, Lexington, Kentucky 40503
| | - Thomas E Curry
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky 40536
| | - Misung Jo
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky 40536
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Tang H, Liu Y, Li J, Li G, Chen Y, Yin Y, Guo Y, Cheng CHK, Liu X, Lin H. LH signaling induced ptgs2a expression is required for ovulation in zebrafish. Mol Cell Endocrinol 2017; 447:125-133. [PMID: 28254490 DOI: 10.1016/j.mce.2017.02.042] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 02/25/2017] [Accepted: 02/26/2017] [Indexed: 11/30/2022]
Abstract
It is well known that ovulation is induced by luteinizing hormone (LH) surge. However, the down-stream factors that mediating LH surge induced ovulation are less clear. The cyclooxygenases (also known as PTGS) as key enzymes for prostaglandins synthesis appear to be important for ovulation in mammals, but their functional roles and molecular mechanism in regulation of fish ovulation are largely unexplored. In this study, we have systematically investigated the expression, regulation and functional roles of cox genes during zebrafish ovulation. Three types of cox genes including ptgs1, ptgs2a and ptgs2b have been identified in zebrafish. The ptgs2a was dominantly expressed in the ovary with a maximal level at the maturation stage of the follicles. In addition, the ptgs2a expression is up-regulated by LH signaling in vitro and in vivo. Moreover, co-injection of a selective Ptgs2 inhibitor and non-selective Ptgs inhibitor with hCG could significantly block the stimulatory effect of hCG induced ovulation in vivo. Collectively, our findings indicate that LH signaling induced ptgs2a expression is required for ovulation in zebrafish.
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Affiliation(s)
- Haipei Tang
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yun Liu
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jianzhen Li
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, China; School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Gaofei Li
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yu Chen
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yike Yin
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yin Guo
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Christopher H K Cheng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China; School of Biomedical Sciences Core Laboratory, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Xiaochun Liu
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, China.
| | - Haoran Lin
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, China
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18
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Willis EL, Bridges PJ, Fortune JE. Progesterone receptor and prostaglandins mediate luteinizing hormone-induced changes in messenger RNAs for ADAMTS proteases in theca cells of bovine periovulatory follicles. Mol Reprod Dev 2017; 84:55-66. [PMID: 27879029 DOI: 10.1002/mrd.22761] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 11/17/2016] [Indexed: 11/11/2022]
Abstract
Little is known about the ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) family of extracellular proteases in ovarian follicles of non-rodent species, particularly in theca cells. In the present study, temporal changes in the abundance of mRNA encoding four ADAMTS subtypes and hormonal regulation of mRNA encoding two subtypes were investigated in theca interna cells during the periovulatory period in cattle. Gonadotropin-releasing hormone (GnRH) was injected into animals to induce a luteinizing hormone (LH)/follicle-stimulating hormone (FSH) surge, and follicles were obtained at 0 hr post-GnRH (preovulatory) or at 6, 12, 18, or 24 hr (periovulatory). ADAMTS1, -2, -7, and -9 transcript abundance was then determined in the isolated theca interna. ADAMTS1 and -9 mRNA levels were up-regulated at 24 hr post-GnRH, whereas ADAMTS2 mRNA was higher at 12-24 hr post-GnRH and ADAMTS7 mRNA increased transiently at 12 hr post-GnRH compared to other time points. Subsequent in vitro experiments using preovulatory theca interna (0 hr post-GnRH) showed that application of LH in vitro can mimic the effects of the gonadotropin surge on mRNAs encoding ADAMTS1 and -9 and that progesterone/progesterone receptor and/or prostaglandins may regulate the levels of mRNA encoding ADAMTS1 and -9 in theca interna, downstream of the LH surge. Time- and subtype-specific changes in ADAMTS mRNA abundance in vivo, and their regulation in vitro by hormones, indicate that ADAMTS family members produced by theca cells may play important roles in follicle rupture and the accompanying tissue remodeling in cattle. Mol. Reprod. Dev. 84: 55-66, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Erin L Willis
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Phillip J Bridges
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York
| | - Joanne E Fortune
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York
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Kemiläinen H, Adam M, Mäki-Jouppila J, Damdimopoulou P, Damdimopoulos AE, Kere J, Hovatta O, Laajala TD, Aittokallio T, Adamski J, Ryberg H, Ohlsson C, Strauss L, Poutanen M. The Hydroxysteroid (17β) Dehydrogenase Family Gene HSD17B12 Is Involved in the Prostaglandin Synthesis Pathway, the Ovarian Function, and Regulation of Fertility. Endocrinology 2016; 157:3719-3730. [PMID: 27490311 DOI: 10.1210/en.2016-1252] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The hydroxysteroid (17beta) dehydrogenase (HSD17B)12 gene belongs to the hydroxysteroid (17β) dehydrogenase superfamily, and it has been implicated in the conversion of estrone to estradiol as well as in the synthesis of arachidonic acid (AA). AA is a precursor of prostaglandins, which are involved in the regulation of female reproduction, prompting us to study the role of HSD17B12 enzyme in the ovarian function. We found a broad expression of HSD17B12 enzyme in both human and mouse ovaries. The enzyme was localized in the theca interna, corpus luteum, granulosa cells, oocytes, and surface epithelium. Interestingly, haploinsufficiency of the HSD17B12 gene in female mice resulted in subfertility, indicating an important role for HSD17B12 enzyme in the ovarian function. In line with significantly increased length of the diestrous phase, the HSD17B+/- females gave birth less frequently than wild-type females, and the litter size of HSD17B12+/- females was significantly reduced. Interestingly, we observed meiotic spindle formation in immature follicles, suggesting defective meiotic arrest in HSD17B12+/- ovaries. The finding was further supported by transcriptome analysis showing differential expression of several genes related to the meiosis. In addition, polyovular follicles and oocytes trapped inside the corpus luteum were observed, indicating a failure in the oogenesis and ovulation, respectively. Intraovarian concentrations of steroid hormones were normal in HSD17B12+/- females, whereas the levels of AA and its metabolites (6-keto prostaglandin F1alpha, prostaglandin D2, prostaglandin E2, prostaglandin F2α, and thromboxane B2) were decreased. In conclusion, our study demonstrates that HSD17B12 enzyme plays an important role in female fertility through its role in AA metabolism.
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Affiliation(s)
- Heidi Kemiläinen
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Marion Adam
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Jenni Mäki-Jouppila
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Pauliina Damdimopoulou
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Anastasios E Damdimopoulos
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Juha Kere
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Outi Hovatta
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Teemu D Laajala
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Tero Aittokallio
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Jerzy Adamski
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Henrik Ryberg
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Claes Ohlsson
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Leena Strauss
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
| | - Matti Poutanen
- Department of Physiology and Turku Center for Disease Modeling (H.K., M.A., J.M.-J., T.D.L., L.S., M.P.), Institute of Biomedicine, University of Turku, FI-20540 Turku, Finland; Department of Clinical Science, Intervention and Technology (P.D., O.H.), Karolinska Institute, 141 52 Huddinge, Sweden; Swedish Toxicology Sciences Research Center (P.D.), Karolinska Institutet, 141 86 Stockholm, Sweden; Department of Biosciences and Nutrition (A.E.D., J.K.), Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Mathematics and Statistics (T.D.L., T.A.), University of Turku, FI-20014 Turku, Finland; Institute for Molecular Medicine Finland (T.A.), University of Helsinki, FI-00014 Helsinki, Finland; Experimental Genetics (J.A.), Center of Life and Food Sciences, Weihenstephan, 85354 Freising, Germany; Institute of experimental Genetics (J.A.), Helmholtz Zentrum, 81377 München, Germany; Genome Analysis Center (J.A.), German Research Center for Environmental Health, 85764 Neuherberg, Germany; Institute of Neuroscience and Physiology (H.R.), Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden; Institute of Medicine (C.O., M.P.), The Sahlgrenska Academy, University of Gothenburg, SE-413 46 Gothenburg, Sweden
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da Silva FF, Støttrup JG, Kjørsvik E, Tveiten H, Tomkiewicz J. Interactive effects of dietary composition and hormonal treatment on reproductive development of cultured female European eel, Anguilla anguilla. Anim Reprod Sci 2016; 171:17-26. [DOI: 10.1016/j.anireprosci.2016.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 05/02/2016] [Accepted: 05/12/2016] [Indexed: 12/21/2022]
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Gene knockout of nuclear progesterone receptor provides insights into the regulation of ovulation by LH signaling in zebrafish. Sci Rep 2016; 6:28545. [PMID: 27333837 PMCID: PMC4917859 DOI: 10.1038/srep28545] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 06/06/2016] [Indexed: 12/27/2022] Open
Abstract
It is well established that the luteinizing hormone surge triggers ovulation, a dynamic process leading to the release of the mature oocyte from the ovarian follicle. But how this process controlled by LH signaling remains largely unknown in non-mammalian species. In this study, we investigated the roles of nuclear progesterone receptor (npr) in LH-induced ovulation. Our results indicate that the nuclear progesterone receptor serves as an important mediator of LH action on ovulation. This conclusion is based on the following results: (1) the expression level of npr peaks at the full-grown stage of the follicles; (2) the expression of npr is stimulated by LH signaling in vitro and in vivo; and (3) the npr null females are infertile due to ovulation defects. Moreover, we further show that LH signaling could induce ptger4b expression in an npr-dependent manner, and blockage of Ptger4b could also block hCG-induced ovulation. Collectively, our results not only demonstrate that npr serves an indispensable role in mediating the action of LH on ovulation in zebrafish, but also provide insights into the molecular mechanisms of the regulation of ovulation in fish.
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Yerushalmi GM, Markman S, Yung Y, Maman E, Aviel-Ronen S, Orvieto R, Adashi EY, Hourvitz A. The prostaglandin transporter (PGT) as a potential mediator of ovulation. Sci Transl Med 2016; 8:338ra68. [DOI: 10.1126/scitranslmed.aad2709] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 04/12/2016] [Indexed: 12/15/2022]
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Bashir ST, Gastal MO, Tazawa SP, Tarso SGS, Hales DB, Cuervo-Arango J, Baerwald AR, Gastal EL. The mare as a model for luteinized unruptured follicle syndrome: intrafollicular endocrine milieu. Reproduction 2016; 151:271-83. [DOI: 10.1530/rep-15-0457] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 12/08/2015] [Indexed: 11/08/2022]
Abstract
Luteinized unruptured follicle (LUF) syndrome is a recurrent anovulatory dysfunction that affects up to 23% of women with normal menstrual cycles and up to 73% with endometriosis. Mechanisms underlying the development of LUF syndrome in mares were studied to provide a potential model for human anovulation. The effect of extended increase in circulating LH achieved by administration of recombinant equine LH (reLH) or a short surge of LH and decrease in progesterone induced by prostaglandin F2α (PGF2α) on LUF formation (Experiment 1), identification of an optimal dose of COX-2 inhibitor (flunixin meglumine, FM; to block the effect of prostaglandins) for inducing LUFs (Experiment 2), and evaluation of intrafollicular endocrine milieu in LUFs (Experiment 3) were investigated. In Experiment 1, mares were treated with reLH from Day 7 to Day 15 (Day 0=ovulation), PGF2α on Day 7, or in combination. In Experiment 2, FM at doses of 2.0 or 3.0 mg/kg every 12 h and human chorionic gonadotropin (hCG) (1500 IU) were administered after a follicle ≥32 mm was detected. In Experiment 3, FM at a dose of 2.0 mg/kg every 12 h plus hCG was used to induce LUFs and investigate the intrafollicular endocrine milieu. No LUFs were induced by reLH or PGF2α treatment; however, LUFs were induced in 100% of mares using FM. Intrafollicular PGF2α metabolite, PGF2α, and PGE2were lower and the ratio of PGE2:PGF2α was higher in the induced LUF group. Higher levels of intrafollicular E2 and total primary sex steroids were observed in the induced LUF group along with a tendency for higher levels of GH, cortisol, and T; however, LH, PRL, VEGF-A, and NO did not differ between groups. In conclusion, this study reveals part of the intrafollicular endocrine milieu and the association of prostaglandins in LUF formation, and indicates that the mare might be an appropriate model for studying the poorly understood LUF syndrome.
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Luteinizing hormone induces ovulation via tumor necrosis factor α-dependent increases in prostaglandin F2α in a nonmammalian vertebrate. Sci Rep 2015; 5:14210. [PMID: 26374476 PMCID: PMC4570979 DOI: 10.1038/srep14210] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 08/24/2015] [Indexed: 01/01/2023] Open
Abstract
Ovulation is induced by the preovulatory surge of luteinizing hormone (LH) that acts on the ovary and triggers the rupture of the preovulatory ovarian follicle by stimulating proteolysis and apoptosis in the follicle wall, causing the release of the mature oocyte. The pro-inflammatory cytokine tumor necrosis factor α (TNFα) and prostaglandin (PG) F2α (PGF2α) are involved in the control of ovulation but their role mediating the pro-ovulatory actions of LH is not well established. Here we show that Lh induces PGF2α synthesis through its stimulation of Tnfα production in trout, a primitive teleost fish. Recombinant trout Tnfα (rTnfα) and PGF2α recapitulate the stimulatory in vitro effects of salmon Lh (sLh) on contraction, proteolysis and loss of cell viability in the preovulatory follicle wall and, finally, ovulation. Furthermore, all pro-ovulatory actions of sLh are blocked by inhibition of Tnfα secretion or PG synthesis and all actions of rTnfα are blocked by PG synthesis inhibitors. Therefore, we provide evidence that the Tnfα–dependent increase in PGF2α production is necessary for the pro-ovulatory actions of Lh. The results from this study shed light onto the mechanisms underlying the pro-ovulatory actions of LH in vertebrates and may prove important in clinical assessments of female infertility.
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Knight OM, Van Der Kraak G. The role of eicosanoids in 17α, 20β-dihydroxy-4-pregnen-3-one-induced ovulation and spawning in Danio rerio. Gen Comp Endocrinol 2015; 213:50-8. [PMID: 25573385 DOI: 10.1016/j.ygcen.2014.12.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 12/19/2014] [Accepted: 12/26/2014] [Indexed: 11/16/2022]
Abstract
This study employed a hormone bioassay to characterize the eicosanoids involved in zebrafish ovulation and spawning, in particular the prostaglandin (PG) products of cyclooxygenase (COX) metabolism and the leukotriene (LT) products of lipoxygenase (LOX) metabolism. Exposure to the teleost progestogen 17α, 20β-dihydroxy-4-pregnen-3-one (17,20βP) induced ovulation, but not spawning, in solitary females and both ovulation and spawning in male-female pairs. Transcription of the eicosanoid-synthesizing enzymes cytosolic phospholipase A2 (cPLA(2)) and COX-2 increased and LTC(4) synthase decreased in peri-ovulatory ovaries of 17,20βP-exposed fish. Ovarian PGF(2α) levels increased post-spawning in 17,20βP-exposed fish, but there was no difference in LTB(4) or LTC(4). Pre-exposure to cPLA(2) or LOX inhibitors reduced 17,20βP-induced ovulation rates, while a COX inhibitor had no effect on ovulation or spawning. Collectively, these findings suggest that eicosanoids, in particular LOX metabolites, mediate 17,20βP-induced ovulation in zebrafish. COX metabolites also appear to be involved in ovulation and spawning but their role remains undefined.
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Affiliation(s)
- Olivia M Knight
- Department of Integrative Biology, University of Guelph, Guelph, ON, Canada
| | - Glen Van Der Kraak
- Department of Integrative Biology, University of Guelph, Guelph, ON, Canada.
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Sugimoto Y, Inazumi T, Tsuchiya S. Roles of prostaglandin receptors in female reproduction. J Biochem 2014; 157:73-80. [PMID: 25480981 DOI: 10.1093/jb/mvu081] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Prostaglandins (PGs) have long been known to play roles in various processes of female reproduction; however, the molecular mechanisms therein remained unsolved until recently. This review summarizes the recent progress towards understanding the molecular mechanisms underlying PG actions in fertilization and parturition. A series of studies using EP2-deficient mice demonstrated that after ovulation chemokine signalling in the cumulus cells stimulates integrin activation and cumulus extracellular matrix (ECM) assembly through the RhoA/ROCK/actomyosin pathway, although excessive chemokine signalling disturbs sperm penetration. PGE2-EP2 signalling suppresses such a chemokine signalling and stimulates cumulus ECM disassembly, which contributes to successful fertilization. A series of studies using FP-deficient mice revealed that PGF(2α)-FP signalling induces parturition at least by terminating progesterone production; however, some other EP signals are likely to be involved in parturition by inducing myometrial contraction. Therefore, it should be clarified as to which EP and/or FP receptor signals are physiologically essential for myometrial contraction and successful parturition.
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Affiliation(s)
- Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Kumamoto University Graduate School of Pharmaceutical Sciences, Oe-Honmachi, Kumamoto 862-0973, Japan and CREST, Japan Science and Technology Agency, Saitama 332-0012, Japan Department of Pharmaceutical Biochemistry, Kumamoto University Graduate School of Pharmaceutical Sciences, Oe-Honmachi, Kumamoto 862-0973, Japan and CREST, Japan Science and Technology Agency, Saitama 332-0012, Japan
| | - Tomoaki Inazumi
- Department of Pharmaceutical Biochemistry, Kumamoto University Graduate School of Pharmaceutical Sciences, Oe-Honmachi, Kumamoto 862-0973, Japan and CREST, Japan Science and Technology Agency, Saitama 332-0012, Japan
| | - Soken Tsuchiya
- Department of Pharmaceutical Biochemistry, Kumamoto University Graduate School of Pharmaceutical Sciences, Oe-Honmachi, Kumamoto 862-0973, Japan and CREST, Japan Science and Technology Agency, Saitama 332-0012, Japan Department of Pharmaceutical Biochemistry, Kumamoto University Graduate School of Pharmaceutical Sciences, Oe-Honmachi, Kumamoto 862-0973, Japan and CREST, Japan Science and Technology Agency, Saitama 332-0012, Japan
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Hagiwara A, Ogiwara K, Katsu Y, Takahashi T. Luteinizing Hormone-Induced Expression of Ptger4b, a Prostaglandin E2 Receptor Indispensable for Ovulation of the Medaka Oryzias latipes, Is Regulated by a Genomic Mechanism Involving Nuclear Progestin Receptor1. Biol Reprod 2014; 90:126. [DOI: 10.1095/biolreprod.113.115485] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Meier S, Priest N, Burke C, Kay J, McDougall S, Mitchell M, Walker C, Heiser A, Loor J, Roche J. Treatment with a nonsteroidal antiinflammatory drug after calving did not improve milk production, health, or reproduction parameters in pasture-grazed dairy cows. J Dairy Sci 2014; 97:2932-43. [DOI: 10.3168/jds.2013-7838] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 02/08/2014] [Indexed: 11/19/2022]
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Kim SO, Harris SM, Duffy DM. Prostaglandin E2 (EP) receptors mediate PGE2-specific events in ovulation and luteinization within primate ovarian follicles. Endocrinology 2014; 155:1466-75. [PMID: 24506073 PMCID: PMC3959600 DOI: 10.1210/en.2013-2096] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Prostaglandin E2 (PGE2) is a key mediator of ovulation. All 4 PGE2 receptors (EP receptors) are expressed in the primate follicle, but the specific role of each EP receptor in ovulatory events is poorly understood. To examine the ovulatory events mediated via these EP receptors, preovulatory monkey follicles were injected with vehicle, the PG synthesis inhibitor indomethacin, or indomethacin plus PGE2. An ovulatory dose of human chorionic gonadotropin was administered; the injected ovary was collected 48 hours later and serially sectioned. Vehicle-injected follicles showed normal ovulatory events, including follicle rupture, absence of an oocyte, and thickening of the granulosa cell layer. Indomethacin-injected follicles did not rupture and contained oocytes surrounded by unexpanded cumulus; granulosa cell hypertrophy did not occur. Follicles injected with indomethacin plus PGE2 were similar to vehicle-injected ovaries, indicating that PGE2 restored the ovulatory changes inhibited by indomethacin. Additional follicles were injected with indomethacin plus an agonist for each EP receptor. EP1, EP2, and EP4 agonists each promoted aspects of follicle rupture, but no single EP agonist recapitulated normal follicle rupture as seen in follicles injected with either vehicle or indomethacin plus PGE2. Although EP4 agonist-injected follicles contained oocytes in unexpanded cumulus, the absence of oocytes in EP1 agonist- and EP2 agonist-injected follicles suggests that these EP receptors promote cumulus expansion. Surprisingly, the EP3 agonist did not stimulate any of these ovulatory changes, despite the high level of EP3 receptor expression in the monkey follicle. Therefore, agonists and antagonists selective for EP1 and EP2 receptors hold the most promise for control of ovulatory events in women.
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Affiliation(s)
- Soon Ok Kim
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia 23501
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Kim SO, Dozier BL, Kerry JA, Duffy DM. EP3 receptor isoforms are differentially expressed in subpopulations of primate granulosa cells and couple to unique G-proteins. Reproduction 2013; 146:625-35. [PMID: 24062570 DOI: 10.1530/rep-13-0274] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Prostaglandin E2 (PGE2) produced within the ovarian follicle is necessary for ovulation. PGE2 is recognized by four distinct G-protein-coupled receptors. Among them, PTGER3 (also known as EP3) is unique in that mRNA splicing generates multiple isoforms. Each isoform has a distinct amino acid composition in the C-terminal region, which is involved in G-protein coupling. To determine whether monkey EP3 isoforms couple to different G-proteins, each EP3 isoform was expressed in Chinese hamster ovary cells, and intracellular signals were examined after stimulation with the EP3 agonist sulprostone. Stimulation of EP3 isoform 5 (EP3-5) reduced cAMP in a pertussis toxin (PTX)-sensitive manner, indicating involvement of Gαi. Stimulation of EP3-9 increased cAMP, which was reduced by the general G-protein inhibitor GDP-β-S, and also increased intracellular calcium, which was reduced by PTX and GDP-β-S. So, EP3-9 likely couples to both Gαs and a PTX-sensitive G-protein to regulate intracellular signals. Stimulation of EP3-14 increased cAMP, which was further increased by PTX, so EP3-14 likely regulates cAMP via multiple G-proteins. Granulosa cell expression of all EP3 isoforms increased in response to an ovulatory dose of human chorionic gonadotropin. Two EP3 isoforms were differentially expressed in functional subpopulations of granulosa cells. EP3-5 was low in granulosa cells at the follicle apex while EP3-9 was high in cumulus granulosa cells. Differential expression of EP3 isoforms may yield different intracellular responses to PGE2 in granulosa cell subpopulations, contributing to the different roles played by granulosa cell subpopulations in the process of ovulation.
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Reza AHMM, Rakhi SF, Hossen MS, Takahashi K, Hossain Z. Enhancement of reproductive performances of Gangetic leaffish, Nandus nandus through up regulation of serum Ca²⁺ concentration, improved morphological alteration of liver and ovary with dietary polyunsaturated fatty acids. FISH PHYSIOLOGY AND BIOCHEMISTRY 2013; 39:779-791. [PMID: 23108804 DOI: 10.1007/s10695-012-9740-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 10/17/2012] [Indexed: 06/01/2023]
Abstract
Incorporation of polyunsaturated fatty acids (PUFAs) as biofunctional compounds with feed is an effective way for gonadal maturation without any hazardous effects on animal health, and thus it is possible to save the vulnerable species from the danger of extinction. In the present study sperm quality, level of Ca(2+) concentration in serum, histological structure of the liver and developmental stages of ovary of an endangered fish species, Nandus nandus were investigated for the confirmation of the positive effects of PUFAs in reproduction and gonadal maturation. Fishes were collected from Brahmaputra River, Mymensingh, Bangladesh. Treated group was fed 1% squid extracted phospholipid supplemented diet that was mixed with silver carp fish muscle where as controlled group was fed the same except phospholipid. For histology of liver and gonads, samples were dehydrated, cleaned and infiltrated, embedded in paraffin wax and sectioned. After that, the samples were stained with hematoxylin and eosin. The photomicrographs of the stained samples were taken by using light microscope. In comparison with the control group, treated group exhibited higher gonadal maturation which resulted in spontaneous spawning. Treated female demonstrated advanced gonadal developmental stages in comparison with the controlled female during different months. During spawning season, lipid granules and normal morphological alteration were observed in case of treated fish liver, whereas less lipid granules with more histological alteration of liver were observed in control group. Serum Ca(2+) concentration in treated female was found significantly higher (P < 0.01) in contrast to the controlled female during the breeding season which was an indicator of the augment of estrogen secretion during ovarian maturation. Better sperm quality, early maturation of oocytes, less histological alteration of liver hepatocytes and spontaneous spawning performances of PUFA-treated fish were as a result of the efficiency of PUFAs in enhancing maturation. The experiment suggests that supplementation of dietary PUFAs improve the spawning performances of fish.
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Affiliation(s)
- A H M M Reza
- Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
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Yokoyama U, Iwatsubo K, Umemura M, Fujita T, Ishikawa Y. The Prostanoid EP4 Receptor and Its Signaling Pathway. Pharmacol Rev 2013; 65:1010-52. [DOI: 10.1124/pr.112.007195] [Citation(s) in RCA: 183] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Du YB, Gao MZ, Shi Y, Sun ZG, Wang J. Endocrine and inflammatory factors and endometriosis-associated infertility in assisted reproduction techniques. Arch Gynecol Obstet 2012; 287:123-30. [DOI: 10.1007/s00404-012-2567-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 09/10/2012] [Indexed: 11/29/2022]
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Leonardi C, Pfeifer L, Rubin M, Singh J, Mapletoft R, Pessoa G, Bainy A, Silva C. Prostaglandin F2α promotes ovulation in prepubertal heifers. Theriogenology 2012; 78:1578-82. [DOI: 10.1016/j.theriogenology.2012.06.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 06/27/2012] [Accepted: 06/28/2012] [Indexed: 11/16/2022]
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35
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Yi D, Zeng S, Guo Y. A diet rich in n-3 polyunsaturated fatty acids reduced prostaglandin biosynthesis, ovulation rate, and litter size in mice. Theriogenology 2012; 78:28-38. [DOI: 10.1016/j.theriogenology.2012.01.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 01/14/2012] [Accepted: 01/15/2012] [Indexed: 11/27/2022]
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Edmonds JW, McKinney SL, Prasain JK, Miller MA. The gap junctional protein INX-14 functions in oocyte precursors to promote C. elegans sperm guidance. Dev Biol 2011; 359:47-58. [PMID: 21889935 DOI: 10.1016/j.ydbio.2011.08.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 07/26/2011] [Accepted: 08/17/2011] [Indexed: 01/07/2023]
Abstract
Innexins are the subunits of invertebrate gap junctions. Here we show that the innexin INX-14 promotes sperm guidance to the fertilization site in the Caenorhabditis elegans hermaphrodite reproductive tract. inx-14 loss causes cell nonautonomous defects in sperm migration velocity and directional velocity. Results from genetic and immunocytochemical analyses provide strong evidence that INX-14 acts in transcriptionally active oocyte precursors in the distal gonad, not in transcriptionally inactive oocytes that synthesize prostaglandin sperm-attracting cues. Somatic gonadal sheath cell interaction is necessary for INX-14 function, likely via INX-8 and INX-9 expressed in sheath cells. However, electron microscopy has not identified gap junctions in oocyte precursors, suggesting that INX-14 acts in a channel-independent manner or INX-14 channels are difficult to document. INX-14 promotes prostaglandin signaling to sperm at a step after F-series prostaglandin synthesis in oocytes. Taken together, our results support the model that INX-14 functions in a somatic gonad/germ cell signaling mechanism essential for sperm function. We propose that this mechanism regulates the transcription of a factor(s) that modulates prostaglandin metabolism, transport, or activity in the reproductive tract.
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Affiliation(s)
- Johnathan W Edmonds
- Department of Cell Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Shauna L McKinney
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Jeevan K Prasain
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Michael A Miller
- Department of Cell Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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The effect of treatment with flunixin meglumine at different times relative to hCG administration on ovulation failure and luteal function in mares. Anim Reprod Sci 2011; 127:84-90. [PMID: 21820823 DOI: 10.1016/j.anireprosci.2011.07.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Revised: 06/18/2011] [Accepted: 07/13/2011] [Indexed: 01/10/2023]
Abstract
Flunixin meglumine (FM), a prostaglandin synthetase inhibitor, causes ovulatory failure in the mare. However, the effect of the FM treatment relative to the time of hCG administration on the ovulation failure has not been determined nor has its effect on the luteal function of treated mares. Estrous mares with a follicle ≥32 mm (range of 32-38 mm) were treated with 1.7 mg/kg b.w. of FM iv at zero, 12, 24 and 36 h (n=6), at 24 and 36 h (n=6), at 28 and 36 h (n=6), at 24h (n=6) or at 30 h (n=6) after treatment with 1500 IU hCG. One group received no FM (control, n=6). Progesterone concentrations were determined using RIA. Mares treated with FM 0-36 h and 24-36 h had higher (P<0.05) incidence of ovulatory failure (83 and 80%, respectively) than mares treated twice at 28 and 36 h, or once at 24 or at 30 h after hCG (16.7, 0 and 0%, respectively). The anovulatory follicles of FM treated mares luteinized and produced progesterone (>2 ng/ml). The progesterone concentration was lower in mares treated with FM at zero to 36 h and at 24-36 h after hCG than in the other groups. In conclusion, the FM administration was effective in blocking ovulation only when the treatment began ≤24 h after hCG and was continued every 12 h until ≥36 h. In addition, the FM-induced anovulatory follicles underwent luteinization of follicular cells with active production of progesterone.
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38
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Harris SM, Aschenbach LC, Skinner SM, Dozier BL, Duffy DM. Prostaglandin E2 receptors are differentially expressed in subpopulations of granulosa cells from primate periovulatory follicles. Biol Reprod 2011; 85:916-23. [PMID: 21753194 DOI: 10.1095/biolreprod.111.091306] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Prostaglandin E2 (PGE2) mediates many effects of the midcycle luteinizing hormone (LH) surge within the periovulatory follicle. Differential expression of the four PGE2 (EP) receptors may contribute to the specialized functions of each granulosa cell subpopulation. To determine if EP receptors are differentially expressed in granulosa cells, monkeys received gonadotropins to stimulate ovarian follicular development. Periovulatory events were initiated with human chorionic gonadotropin (hCG); granulosa cells and whole ovaries were collected before (0 h) and after (24-36 h) hCG to span the 40-h primate periovulatory interval. EP receptor mRNA and protein levels were quantified in granulosa cell subpopulations. Cumulus cells expressed higher levels of EP2 and EP3 mRNA compared with mural cells 36 h after hCG. Cumulus cell EP2 and EP3 protein levels also increased between 0 and 36 h after hCG. Overall, mural granulosa cells expressed low levels of EP1 protein at 0 h and higher levels 24-36 h after hCG. However, EP1 protein levels were higher in granulosa cells away from the follicle apex compared with apex cells 36 h after hCG. Higher levels of PAI-1 protein were measured in nonapex cells, consistent with a previous study showing EP1-stimulated PAI-1 protein expression in monkey granulosa cells. EP4 protein levels were low in all subpopulations. In summary, cumulus cells likely respond to PGE2 via EP2 and EP3, whereas PGE2 controls rupture of a specific region of the follicle via EP1. Therefore, differential expression of EP receptors may permit each granulosa cell subpopulation to generate a unique response to PGE2 during the process of ovulation.
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Affiliation(s)
- Siabhon M Harris
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia, USA
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Cuervo-Arango J, Beg M, Ginther O. Follicle and systemic hormone interrelationships during induction of luteinized unruptured follicles with a prostaglandin inhibitor in mares. Theriogenology 2011; 76:361-73. [DOI: 10.1016/j.theriogenology.2011.02.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Revised: 02/07/2011] [Accepted: 02/10/2011] [Indexed: 10/18/2022]
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Cuervo-Arango J. The Effect of Systemic Administration of Cloprostenol on Ovulation in Mares Treated with a Prostaglandin Synthetase Inhibitor. Reprod Domest Anim 2011; 47:32-8. [DOI: 10.1111/j.1439-0531.2011.01796.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Duffy DM. Prostaglandin dehydrogenase (PGDH) in granulosa cells of primate periovulatory follicles is regulated by the ovulatory gonadotropin surge via multiple G proteins. Mol Cell Endocrinol 2011; 333:119-26. [PMID: 21167905 PMCID: PMC3039104 DOI: 10.1016/j.mce.2010.12.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 12/06/2010] [Accepted: 12/09/2010] [Indexed: 02/01/2023]
Abstract
The ovulatory gonadotropin surge increases granulosa cell prostaglandin synthesis as well as prostaglandin dehydrogenase (PGDH), the key enzyme responsible for prostaglandin metabolism. To investigate gonadotropin regulation of PGDH in the primate follicle, monkey granulosa cells were obtained across the 40-h periovulatory interval. PGDH activity was low before the ovulatory hCG stimulus, peaked 12-24 h after hCG, and was low again 36 h after hCG administration. Granulosa cells maintained in vitro with hCG showed a similar temporal pattern of PGDH. The LH/CG receptor can utilize multiple signaling pathways to regulate intracellular events. Gonadotropin-stimulated cAMP appears to act primarily via the Epacs to increase PGDH mRNA, protein, and activity. In contrast, PLC activation of PKC likely decreases PGDH mRNA, protein, and activity late in the periovulatory interval. Increased, then decreased PGDH activity may delay accumulation of prostaglandins in the follicle until late in the periovulatory interval, contributing to timely ovulation in primates.
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Affiliation(s)
- Diane M Duffy
- Department of Physiological Sciences, Eastern Virginia Medical School, 700 Olney Road, Lewis Hall, Norfolk, VA 23507, United States.
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Fujimori C, Ogiwara K, Hagiwara A, Rajapakse S, Kimura A, Takahashi T. Expression of cyclooxygenase-2 and prostaglandin receptor EP4b mRNA in the ovary of the medaka fish, Oryzias latipes: possible involvement in ovulation. Mol Cell Endocrinol 2011; 332:67-77. [PMID: 20932877 DOI: 10.1016/j.mce.2010.09.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Revised: 08/18/2010] [Accepted: 09/28/2010] [Indexed: 10/19/2022]
Abstract
In vitro ovulation of mature medaka ovarian follicles was inhibited by inhibitors of cyclooxygenase (COX) or by an antagonist of the prostaglandin E(2) receptor (EP). Of the three medaka COX genes, ptgs2 was most dominantly expressed in the fish ovary. The ptgs2 transcript was detected in all sizes of growing follicles. In a 24-h spawning cycle, large-sized follicles contained ptgs2 mRNA at a fairly constant level. The levels of COX enzyme activity and prostaglandin E(2) were also constant in the large-sized follicles during the spawning cycle. The expression of prostaglandin E(2) receptor EP4b (ptger4b) mRNA was drastically upregulated in the large-sized follicles as the ovulation time approached. The current results indicate that prostaglandin E(2), which might be produced by COX-2, is involved in the ovulation of medaka, and that EP4b is likely the receptor responsible for exerting the action of prostaglandin E(2) in the process.
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Affiliation(s)
- Chika Fujimori
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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Duffy DM, VandeVoort CA. Maturation and fertilization of nonhuman primate oocytes are compromised by oral administration of a cyclooxygenase-2 inhibitor. Fertil Steril 2011; 95:1256-60. [PMID: 21236424 DOI: 10.1016/j.fertnstert.2010.12.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Revised: 11/19/2010] [Accepted: 12/22/2010] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To determine if oral administration of a cyclooxygenase-2 (COX2) inhibitor affects oocyte nuclear maturation and fertilization in nonhuman primates. DESIGN Laboratory research study. SETTING Medical school. ANIMAL(S) Adult female cynomolgus monkeys (Macaca fascicularis). INTERVENTION(S) Monkeys received gonadotropins to stimulate multiple follicular development. An ovulatory dose of hCG was administered either alone or with oral celecoxib, a COX2 inhibitor. Oocytes were retrieved 36 hours later and exposed to sperm in vitro. MAIN OUTCOME MEASURE(S) Oocytes were assessed for nuclear status at retrieval, resumption of meiosis in vitro, and success of in vitro fertilization. RESULT(S) Treatment with hCG alone yielded oocytes that were primarily (72.9%) at the meiosis II (MII) stage of nuclear maturation; few oocytes were obtained at the germinal vesicle and germinal vesicle breakdown stages. Treatment with hCG and celecoxib yielded fewer mature (MII) oocytes (35.6%) and more oocytes at less mature stages compared with oocytes from monkeys treated with hCG alone. The majority (68.3 ± 15.9%) of MII oocytes from monkeys treated with hCG alone fertilized in vitro, compared with only 11.0 ± 5.9% of MII oocytes from monkeys treated with hCG and celecoxib. CONCLUSION(S) Oral administration of a COX2 inhibitor reduced the rate of oocyte nuclear maturation and the success of in vitro fertilization. Drugs of this class may block multiple essential steps in female reproduction and be effective contraceptives for women.
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Affiliation(s)
- Diane M Duffy
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia 23507, USA.
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Grado-Ahuir JA, Aad PY, Spicer LJ. New insights into the pathogenesis of cystic follicles in cattle: microarray analysis of gene expression in granulosa cells. J Anim Sci 2011; 89:1769-86. [PMID: 21239663 DOI: 10.2527/jas.2010-3463] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Ovarian follicular growth and development are regulated by extraovarian and intraovarian factors, which influence granulosa cell proliferation and differentiation. However, the molecular mechanisms that drive follicular growth are not completely understood. Ovarian follicular cysts are one of the most common causes of reproductive failure in dairy cattle. Nevertheless, the primary cause of cyst formation has not been clearly established. A gene expression comparison may aid in elucidating the causes of ovarian cyst disease. Our objective was to identify differentially expressed genes in ovarian granulosa cells between normal dominant and cystic follicles of cattle. Granulosa cells and follicular fluid were isolated from dominant and cystic follicles collected via either ultrasound-guided aspiration from dairy cows (n = 24) or slaughterhouse ovaries from beef cows (n = 23). Hormonal analysis for progesterone, estradiol, and androstenedione in follicular fluid was performed by RIA. Total RNA was extracted and hybridized to 6 Affymetrix GeneChip Bovine Genome Arrays (Affymetrix, Santa Clara, CA). Abundance of mRNA for differentially expressed selected genes was determined through quantitative real-time reverse-transcription PCR. Follicular cysts showed greater (P < 0.05) progesterone, lesser (P < 0.05) estradiol, and no differences (P > 0.10) in androstenedione concentrations compared with noncystic follicles. A total of 163 gene sequences were differentially expressed (P < 0.01), with 19 upregulated and 144 downregulated. From selected target genes, quantitative real-time reverse-transcription PCR confirmed angiogenin, PGE(2) receptor 4, and G-protein coupled receptor 34 genes as upregulated in cystic follicles, and Indian hedgehog protein precursor and secreted frizzled-related protein 4 genes as downregulated in cystic follicles. Further research is required to elucidate the role of these factors in follicular development and cyst formation.
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Affiliation(s)
- J A Grado-Ahuir
- Department of Animal Science, Oklahoma State University, Stillwater 74078, USA
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Lewis HA, Trushenski JT, Lane RL, Kohler CC. Effect of dietary marine lipids on female white bass ova compositions and progeny survival. FISH PHYSIOLOGY AND BIOCHEMISTRY 2010; 36:979-992. [PMID: 20058185 DOI: 10.1007/s10695-009-9376-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Accepted: 12/20/2009] [Indexed: 05/28/2023]
Abstract
We evaluated white bass ovum fatty acid composition as well as embryonic and larval survival after varying n-3 and n-6 long-chain polyunsaturated fatty acid (LC-PUFA) concentrations in maternal diets. Diets containing graded levels (0, 33, 66, or 100%) of squid to menhaden oils were fed daily to apparent satiation to female white bass for 8 weeks prior to spawning. Embryonic survival was negatively related to maternal squid oil intake (P=0.015, R2=0.970). Squid oil-fed broodstock produced ova with decreased 20:5n-3 and increased C18 polyunsaturated fatty acid concentrations, largely reflecting the fatty acid profile of squid oil. Within ovum phospholipid, accumulation of 18:2n-6 may have altered biological function resulting in the lower embryonic survival among ova produced from the squid oil-fed broodstock. Our data suggest the importance of feeding white bass broodstock diets high in total n-3 LC-PUFA (at least 4.0% dry matter), and 20:5n-3-rich lipid sources such as menhaden oil can be effectively utilized by female white bass to produce quality ova.
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Affiliation(s)
- H A Lewis
- Fisheries and Illinois Aquaculture Center and Department of Zoology, Southern Illinois University Carbondale, Carbondale, IL 62901-6511, USA.
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Horn M, Gunn P, Van Emon M, Lemenager R, Burgess J, Pyatt NA, Lake SL. Effects of natural (RRR alpha-tocopherol acetate) or synthetic (all-rac alpha-tocopherol acetate) vitamin E supplementation on reproductive efficiency in beef cows. J Anim Sci 2010; 88:3121-7. [PMID: 20495121 DOI: 10.2527/jas.2009-1807] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective was to determine the effects of natural- or synthetic-source vitamin E on reproductive efficiency in Angus-cross beef cows. In Exp. 1, one hundred fifty-two cows were fed hay and corn silage based diet and assigned to 1 of 3 dietary supplements (3 pens/treatment): 1) containing no additional vitamin E (CON), 2) formulated to provide 1,000 IU x d(-1) of synthetic-source vitamin E (SYN; all-rac or dl-alpha-tocopherol acetate), or 3) formulated to provide 1,000 IU x d(-1) of natural-source vitamin E (NAT; RRR or D-alpha-tocopherol acetate). In Exp. 2, seventy-five cows (2 reps/treatment) were assigned to similar treatments as Exp. 1; however, a vitamin-mineral supplement was offered for ad libitum intake and vitamin intake was calculated from predicted mineral intakes. Cows grazed pastures rather than being fed hay and corn silage as in Exp. 1. In Exp. 1 and 2, supplementation began 6 wk prepartum and continued until initiation of the breeding season. Blood samples were collected at calving (Exp. 1) or breeding (Exp. 2) to determine alpha-tocopherol concentration and weekly beginning 4 wk postpartum (Exp. 1) or 7 and 14 d before estrus synchronization (Exp. 2) to determine return to estrus via progesterone concentration. Cows were synchronized and bred by AI based on heat detection; nonresponding cows were time bred (AI) 66 h after PGF(2 alpha) injection, and cows returning to estrus after AI were bred by natural service. In Exp. 1, cows supplemented with NAT and SYN had greater (P < 0.001) serum concentrations of alpha-tocopherol at calving compared with CON cows. Dietary supplement did not affect (P >or= 0.55) the percentage of cows cycling before synchronization or the number of days to return to estrus by cows that resumed estrus before synchronization. Cows supplemented with SYN tended to have greater first service conception rates compared with CON and NAT (P = 0.09); however, first plus second services combined and overall conception rates were not affected (P >or= 0.23). In Exp. 2, NAT cows had greater (P = 0.002) concentrations of alpha-tocopherol at breeding, whereas there was no difference (P > 0.05) between SYN and CON. Supplementation of SYN or NAT did not affect (P >or= 0.17) days to resumption of estrus before breeding, first service, first plus second services combined, or overall conception rates. These data suggest that supplementation of SYN or NAT source vitamin E increased alpha-tocopherol concentration in cows; however, effects on reproductive efficiency are minimal.
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Affiliation(s)
- M Horn
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
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47
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Kidd CE, Kidd MR, Hofmann HA. Measuring multiple hormones from a single water sample using enzyme immunoassays. Gen Comp Endocrinol 2010; 165:277-85. [PMID: 19607832 DOI: 10.1016/j.ygcen.2009.07.008] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 07/07/2009] [Accepted: 07/09/2009] [Indexed: 12/24/2022]
Abstract
Many aquatic species, such as teleosts, release into the water and detect multiple bioactive substances to assist in schooling, migration, alarm reactions, and to stimulate behavioral and physiological responses during reproduction and in parent-offspring interactions. Understanding the complex relationship between hormones, behavior and their function in communication requires the simultaneous examination of multiple circulating hormones. However, repeated blood sampling within a short time period is not possible in smaller animals without impacting the very behaviors under investigation. The non-invasive technique of collecting and measuring hormone values in holding water using either radioimmunoassay (RIA) or enzyme immunoassay (EIA) is becoming widely used in teleost research. Commercial assay kits in particular enable rapid and reliable data generation, yet their assay buffers are often specific and potentially incompatible with each other, which can hinder measuring multiple hormones from the same sample. We present here the validation and application of a "nested" elution technique we developed that allows for repeated sampling of multiple reproductive hormones - testosterone (T), 17beta-estradiol (E2), progesterone (P), prostaglandin F(2 alpha) (PGF) and 11-ketotestosterone (11KT) - from individual samples of animal holding water by using commercial EIA systems. Our results show that when using appropriate controls to account for possible technical and biological confounds, this technique provides a powerful new tool for research in aquatic endocrinology and physiology.
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Affiliation(s)
- Celeste E Kidd
- Section of Integrative Biology, University of Texas at Austin, Austin, TX 78712, USA
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48
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Ichikawa A, Sugimoto Y, Tanaka S. Molecular biology of histidine decarboxylase and prostaglandin receptors. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2010; 86:848-66. [PMID: 20948178 PMCID: PMC3037517 DOI: 10.2183/pjab.86.848] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Histamine and prostaglandins (PGs) play a variety of physiological roles as autacoids, which function in the vicinity of their sources and maintain local homeostasis in the body. They stimulate target cells by acting on their specific receptors, which are coupled to trimeric G proteins. For the precise understanding of the physiological roles of histamine and PGs, it is necessary to clarify the molecular mechanisms involved in their synthesis as well as their receptor-mediated responses. We cloned the cDNAs for mouse L-histidine decarboxylase (HDC) and 6 mouse prostanoid receptors (4 PGE(2) receptors, PGF receptor, and PGI receptor). We then characterized the expression patterns and functions of these genes. Furthermore, we established gene-targeted mouse strains for HDC and PG receptors to explore the novel pathophysiological roles of histamine and PGs. We have here summarized our research, which should contribute to progress in the molecular biology of HDC and PG receptors.
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MESH Headings
- Animals
- Cloning, Molecular
- DNA, Complementary/metabolism
- Gene Expression Profiling
- Gene Expression Regulation, Enzymologic
- Histamine/chemistry
- Histidine Decarboxylase/genetics
- Histidine Decarboxylase/metabolism
- Homeostasis
- Humans
- Mice
- Models, Biological
- Receptors, Prostaglandin/genetics
- Receptors, Prostaglandin/metabolism
- Receptors, Prostaglandin E, EP3 Subtype/genetics
- Receptors, Prostaglandin E, EP3 Subtype/metabolism
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Affiliation(s)
- Atsushi Ichikawa
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan.
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49
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Kõks S, Velthut A, Sarapik A, Altmäe S, Reinmaa E, Schalkwyk LC, Fernandes C, Lad HV, Soomets U, Jaakma U, Salumets A. The differential transcriptome and ontology profiles of floating and cumulus granulosa cells in stimulated human antral follicles. Mol Hum Reprod 2009; 16:229-40. [PMID: 19933312 DOI: 10.1093/molehr/gap103] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Communication between various ovarian cell types is a prerequisite for folliculogenesis and ovulation. In antral follicles granulosa cells divide into two distinct populations of mural and cumulus granulosa cells (CGC), enveloping the antrum and surrounding the oocyte, respectively. Both cell types, with the mural compartment in excess, contribute to the floating granulosa cell (FGC) population in the follicular fluid. The aim of this study was to compare the transcriptomes of FGC and CGC in stimulated antral follicles obtained from 19 women undergoing IVF-ICSI procedure. FGC were obtained from follicular fluid during the follicle puncture procedure and CGC were acquired after oocyte denudation for micromanipulation. Gene expression analysis was conducted using the genome-wide Affymetrix transcriptome array. The expression profile of the two granulosa cell populations varied significantly. Out of 28 869 analysed transcripts 4480 were differentially expressed (q-value < 10(-4)) and 489 showed > or =2-fold difference in the expression level with 222 genes up-regulated in FGC and 267 in CGC. The transcriptome of FGC showed higher expression of genes involved in immune response, hematological system function and organismal injury, although CGC had genes involved in protein degradation and nervous system function up-regulated. Cell-to-cell signalling and interaction pathways were noted in both cell populations. Furthermore, numerous novel transcripts that have not been previously described in follicular physiology were identified. In conclusion, our results provide a solid basis for future studies in follicular biology that will help to identify molecular markers for oocyte and embryo viability in IVF.
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Affiliation(s)
- S Kõks
- Department of Physiology, University of Tartu, Tartu 50411, Estonia
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50
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Yodoi R, Tamba S, Morimoto K, Segi-Nishida E, Nishihara M, Ichikawa A, Narumiya S, Sugimoto Y. RhoA/Rho kinase signaling in the cumulus mediates extracellular matrix assembly. Endocrinology 2009; 150:3345-52. [PMID: 19342461 PMCID: PMC2703534 DOI: 10.1210/en.2008-1449] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Cumulus cells surround the oocyte and regulate the production and assembly of the extracellular matrix (ECM) around the cumulus-oocyte complex for its timely interaction with sperm in the oviduct. We recently found that C-C chemokines such as CCL2, CCL7, and CCL9 are produced and stimulate integrin-mediated ECM assembly in the postovulatory cumulus to protect eggs and that prostaglandin E(2)-EP2 signaling in the cumulus cells facilitates fertilization by suppressing this chemokine signaling, which otherwise results in fertilization failure by preventing sperm penetration through the cumulus ECM. However, it remains unknown as to what mechanisms underlie chemokine-induced cumulus ECM assembly. Here we report that inhibition of EP2 signaling or addition of CCL7 augments RhoA activation and induces the surface accumulation of integrin and the contraction of cumulus cells. Enhanced surface accumulation of integrin then stimulates the formation and assembly of fibronectin fibrils as well as induces cumulus ECM resistance to hyaluronidase and sperm penetration. These changes in the cumulus ECM as well as cell contraction are relieved by the addition of Y27632 or blebbistatin. These results suggest that chemokines induce integrin engagement to the ECM and consequent ECM remodeling through the RhoA/Rho kinase/actomyosin pathway, making the cumulus ECM barrier resistant to sperm penetration. Based on these results, we propose that prostaglandin E(2)-EP2 signaling negatively regulates chemokine-induced Rho/ROCK signaling in cumulus cells for successful fertilization.
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Affiliation(s)
- Rieko Yodoi
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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