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Navanukraw P, Chotimanukul S, Udomthanaisit L, Setthawong P, Saehlee S, Seetaha S, Choowongkomon K, Chatdarong K. Antibody fragments targeting the extracellular domain of follicular stimulating hormone receptor for contraception in male dogs and cats. Theriogenology 2024; 226:110-119. [PMID: 38875921 DOI: 10.1016/j.theriogenology.2024.06.005] [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: 05/05/2024] [Revised: 06/03/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
The increased LH levels resulting from the absence of negative feedback after castration has been linked to long-term health issues. A need exists for an alternative contraceptive agent that functions without interfering the LH pathways. This study aimed to develop antibody fragments against the follicular-stimulating hormone receptor (anti-FSHr) using phage-display technology and evaluate its effects on Sertoli cell functions. Phage clones against the extracellular domain of dog and cat FSHr selected from an antibody fragment phagemid library were analyzed for binding kinetics by surface plasmon resonance. Sertoli cells were isolated from testes of adult animals (five dogs and five cats). Efficacy test was performed by treating Sertoli cell cultures (SCCs) with anti-FSHr antibody fragments compared with untreated in triplicates. Expressions of androgen binding protein (ABP), inhibin subunit beta B (IHBB) and vascular endothelial growth factor A (VEGFA) mRNA in SCCs were quantified by RT-qPCR. The results demonstrated that the molecular weight of the purified dog and cat anti-FSHr antibody fragment was 25 kDa and 15 kDa, respectively. Based on protein molecular weight, the antibody fragment of dogs and cats was therefore, so-called single-chain variable fragments (scFv) and nanobody (nb), respectively. The binding affinity with dissociation constant (KD) was 2.32 × 10-7 M and 2.83 × 10-9 M for dog and cat anti-FSHr antibody fragments, respectively. The cross-binding kinetic interactions between the dog anti-FSHr scFv and the cat ECD of FSHr could not be fitted to the curves to determine the binding kinetics. However, the cross-binding affinity KD between the cat anti-FSHr nb and the dog ECD FSHr was 1.75 × 10-4 M. The mRNA expression of ABP, IHBB and VEGFA in SCCs was less (P < 0.05) in both dogs (12.26, 4.07 and 5.11 folds, respectively) and cats (39.53, 14.07 and 20.29 folds, respectively) treated with anti-FSHr antibody fragments, indicating the Sertoli cell functions were suppressed. In conclusion, this study demonstrated the establishment of species-specific antibody fragments against FSHr in SCCs for dogs and cats. The fragment proteins illustrate potential to be developed as non-surgical contraceptive agent targeting FSHr in companion animals.
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Affiliation(s)
- Pakpoom Navanukraw
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Sroisuda Chotimanukul
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Larindhorn Udomthanaisit
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Piyathip Setthawong
- Department of Physiology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Siriwan Saehlee
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok, Thailand
| | - Supaphorn Seetaha
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok, Thailand
| | | | - Kaywalee Chatdarong
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
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Berenji E, Valipour Motlagh A, Fathi M, Esmaeili M, Izadi T, Rezvanian P, Zanjirband M, Safaeinejad Z, Nasr-Esfahani MH. Discovering therapeutic possibilities for polycystic ovary syndrome by targeting XIST and its associated ceRNA network through the analysis of transcriptome data. Sci Rep 2024; 14:6180. [PMID: 38486041 PMCID: PMC10940664 DOI: 10.1038/s41598-024-56524-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 03/07/2024] [Indexed: 03/18/2024] Open
Abstract
Long non-coding RNA (lncRNA) regulates many physiological processes by acting as competitive endogenous RNA (ceRNA). The dysregulation of lncRNA X-inactive specific transcript (XIST) has been shown in various human disorders. However, its role in the pathogenesis of polycystic ovary syndrome (PCOS) is yet to be explored. This study aimed to explore the underlying mechanism of XIST in the pathogenesis of PCOS, specifically through dataset functional analysis. GEO PCOS datasets including RNA-seq, microarray, and miRNA-seq in granulosa cells (GCs) and blood, were examined and comprehensively analyzed. Enrichment analysis, ROC curve constructions, lncRNA-miRNA-mRNA interaction network analyses, and qRT-PCR validation were performed followed by a series of drug signature screenings. Our results revealed significant dysregulation in the expression of 1131 mRNAs, 30 miRNAs, and XIST in GCs of PCOS patients compared to healthy individuals. Of the120 XIST-correlated upregulated genes, 25 were enriched in inflammation-related pathways. Additionally, 5 miRNAs were identified as negative regulators of XIST-correlated genes. Accordingly, a ceRNA network containing XIST-miRNAs-mRNAs interactions was constructed. Furthermore, 6 genes, including AQP9, ETS2, PLAU, PLEK, SOCS3, and TNFRSF1B served as both GCs and blood-based biomarkers. By analyzing the number of interactions among XIST, miRNAs, and mRNAs, we pinpointed ETS2 as the pivotal gene within the ceRNA network. Our findings reveal a novel XIST- hsa-miR-146a-5p, hsa-miR-144-3p, and hsa-miR-1271-5p-ETS2 axis that comprehensively elucidates the XIST-associated mechanism underlying PCOS onset. qRT-PCR analysis further confirmed the, overexpression of both XIST and ETS2 . Furthermore, our results demonstrated that XIST and ETS2 were correlated with some assisted reproductive technologies outcomes. Finally, we identified two novel compounds including, methotrexate/folate and threonine using drug-gene interaction databases for PCOS management. These findings provide novel insights into the molecular etiology, diagnosis, and potential therapeutic interventions for PCOS.
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Affiliation(s)
- Elahe Berenji
- ACECR Institute of Higher Education (Isfahan Branch), Isfahan, Iran
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran
| | - Ali Valipour Motlagh
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran
| | - Marziyeh Fathi
- ACECR Institute of Higher Education (Isfahan Branch), Isfahan, Iran
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran
| | - Maryam Esmaeili
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran
| | - Tayebeh Izadi
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran
| | - Parsa Rezvanian
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran
| | - Maryam Zanjirband
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran
| | - Zahra Safaeinejad
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran.
| | - Mohammad Hossein Nasr-Esfahani
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, P.O. Box 816513-1378, Isfahan, Iran.
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Soetan OA, Ajao FO, Ajayi AF. Erythritol attenuates testicular dysfunction in diabetic rat via suppression of oxidative stress, inflammation and apoptosis. Biochem Biophys Res Commun 2024; 690:149254. [PMID: 37988877 DOI: 10.1016/j.bbrc.2023.149254] [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: 09/08/2023] [Revised: 11/04/2023] [Accepted: 11/14/2023] [Indexed: 11/23/2023]
Abstract
Hyperglycemia -induced oxidative stress and inflammation have been closely associated with diabetes complications including testicular dysfunction. Conversely, reducing blood glucose and/or use of antioxidant have been associated with reduced diabetes complications. The present study investigated the effect of erythritol (which has both antioxidant and blood glucose lowering function) on diabetes -induced testicular dysfunction in rats. Thirty male Wistar rats (170-200g) were randomly divided into 5 groups: 1) control; 2) erythritol; 3) diabetic; 4) diabetic + erythritol 1000 mg/kg; and 5) diabetic + metformin 300 mg/kg. After 8 weeks of treatment period, blood sample, testes and epididymis were collected for reproductive hormones, biochemical and histological examinations, and sperm analysis respectively. There was a significant (p < 0.05) decrease in sperm count, sperm motility, sperm morphology and serum reproductive hormones (Follicle stimulating hormone (FSH), Leutinizing hormone (LH), testosterone and gonadotropin releasing hormone (GnRH)) of diabetes rat compared to control. Also, diabetes rat showed increase in sperm and testicular malonaldehyde (MDA) and decrease in sperm and testicular superoxide dismutase (SOD) activity and glutathione (GSH) level. Further, diabetes rat showed reduced testicular weight, decreased testicular 17β-HSD and 3β-HSD activity and testicular histo-architectural alteration which were accompanied by decrease testicular vascular endothelial growth factor (VEGF) and concomitant increase in testicular myeloperoxidase activity and level of caspase 3. The present results indicates that induction of diabetes in rat causes reduction in the level of reproductive hormones (Testosterone, LH and FSH) as well as sperm and testicular oxidative stress causing abnormal sperm parameters, and biochemical and histo-architectural alterations in the testes of rats. In addition, the present results suggest that erythritol administration reduced blood glucose and ameliorated hyperglycemia -induced oxidative stress -mediated alterations in both sperm and testes of diabetes rat. Further, the present study suggests that erythritol improved testicular oxidative stress, inflammation and apoptosis by up-regulating VEGF.
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Affiliation(s)
- O A Soetan
- Reproduction and Bioinformatics Research Unit, Ladoke Akintola University of Technology, Ogbomosho, Oyo, Nigeria; Department of Physiology, Ladoke Akintola University of Technology, Ogbomosho, Oyo, Nigeria; Department of Physiology, Faculty of Basic Medical Sciences, Thomas Adewumi University, Oko, Kwara State, Nigeria
| | - F O Ajao
- Reproduction and Bioinformatics Research Unit, Ladoke Akintola University of Technology, Ogbomosho, Oyo, Nigeria; Department of Physiology, Ladoke Akintola University of Technology, Ogbomosho, Oyo, Nigeria
| | - A F Ajayi
- Reproduction and Bioinformatics Research Unit, Ladoke Akintola University of Technology, Ogbomosho, Oyo, Nigeria; Department of Physiology, Ladoke Akintola University of Technology, Ogbomosho, Oyo, Nigeria; Anchor Biomed Research Institute, Ogbomoso, Oyo State, Nigeria.
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Navanukraw P, Chotimanukul S, Kemthong T, Choowongkomon K, Chatdarong K. Impaired Testicular Function without Altering Testosterone Concentration Using an Anti-Follicular-Stimulating Hormone Receptor (Anti-FSHr) Single-Chain Variable Fragment (scFv) in Long-Tailed Macaques ( Macaca fascicularis). Animals (Basel) 2023; 13:2282. [PMID: 37508065 PMCID: PMC10376863 DOI: 10.3390/ani13142282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/05/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
FSHr antibodies have been shown to inhibit the differentiation of spermatogonia to primary spermatocytes, resulting in infertility without a pathological effect on reproductive organs. The aim of this study was to develop single-chain variable fragments (scFvs) against the follicular-stimulating hormone receptor (anti-FSHr) using phage-display technology and to evaluate the effects of intratesticular administration of the anti-FSHr scFv on testicular function and testosterone production. A phage clone against the extracellular domain of FSHr selected from a scFv phagemid library was analyzed for binding kinetics by surface plasmon resonance. Using ultrasound guidance, three adult macaques (M. fascicularis) were administered with 1 mL of 0.4 mg/mL anti-FSHr scFv (treatment) and 1 mL sterile phosphate buffer solution (control) into the left and right rete testis, respectively. Testicular appearance and volume, ejaculate quality, and serum testosterone levels were recorded on day 0 (before injection) and on days 7, 28, and 56 (after injection). Testicular tissue biopsies were performed on day 7 and day 56 to quantify the mRNA expressions of androgen binding protein (ABP), inhibin subunit beta B (IHBB), and vascular endothelial growth factor A (VEGFA). The results demonstrated that the anti-FSHr scFv molecule was calculated as 27 kDa with a dissociation constant (KD) of 1.03 µM. The volume of the anti-FSHr scFv-injected testicle was reduced on days 28 and 56 compared with day 0 (p < 0.05). Total sperm number was reduced from day 0 (36.4 × 106 cells) to day 56 (1.6 × 106 cells) (p < 0.05). The percentage of sperm motility decreased from day 0 (81.7 ± 1.0%) to day 7 (23.3 ± 1.9%), day 28 (41.7 ± 53.4%), and day 56 (8.3 ± 1.9%) (p < 0.05). Sperm viability on day 0 was 86.8 ± 0.5%, which reduced to 64.2 ± 1.5%, 67.1 ± 2.2%, and 9.3 ± 1.1% on days 7, 28, and 56, respectively (p < 0.05). The expression of ABP and VEGFA on days 7 (14.2- and 3.2-fold) and 56 (5.6- and 5.5-fold) was less in the scFv-treated testicle compared with the controls (p < 0.05). On day 56, the expression of IHBB was less (p < 0.05) in the treated testis (1.3-fold) compared with the controls. Serum testosterone levels were unchanged throughout the study period (p > 0.05). This study characterized the anti-FSHr scFv and demonstrated that treatment with anti-FSHr ameliorates testicular function without altering testosterone levels, offering a potential alternative contraceptive for the long-tailed macaques.
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Affiliation(s)
- Pakpoom Navanukraw
- Department of Obstetrics, Gynecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sroisuda Chotimanukul
- Department of Obstetrics, Gynecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Taratorn Kemthong
- National Primate Research Center of Thailand, Chulalongkorn University, Saraburi 18110, Thailand
| | - Kiattawee Choowongkomon
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Kaywalee Chatdarong
- Department of Obstetrics, Gynecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
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Andlib N, Sajad M, Kumar R, Thakur SC. Abnormalities in sex hormones and sexual dysfunction in males with diabetes mellitus: A mechanistic insight. Acta Histochem 2023; 125:151974. [PMID: 36455338 DOI: 10.1016/j.acthis.2022.151974] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 11/29/2022]
Abstract
Diabetes is a considerate metabolic disorder that can lead to a series of complications, involving the malfunctioning of the reproductive system of males. It has been observed that there is a gradual rise in male diabetic patients and almost half of the diabetic males have low semen quality and decrease reproductive function. In diabetic conditions, prolonged hyperglycemia leads to oxidative stress, diabetic neuropathy, and insulin resistance. Insulin resistance and its deficiency can impair the hypothalamus, pituitary gland, gonads, and perigonads. This causes a decrease in the secretion of gonadal steroids such as GnRH (gonadotropin-releasing hormone), FSH (follicle-stimulating hormone), LH (luteinizing hormone), and Testosterone. Moreover, it also causes damage to the testicles, spermatogenic and stromal cells, seminiferous tubules, and various structural injuries to male reproductive organs. During spermatogenesis, glucose metabolism plays an important role, because the fundamental activities of cells and their specific features, such as motility and mature sperm fertilization activity, are maintained by glucose metabolism. All these activities can influence the fertility and reproductive health of males. But the glucose metabolism is primarily disrupted in diabetic conditions. Until now, there has been no medicine focusing on the reproductive health of diabetic people. In this chapter, we review the consequences of diabetes on the reproductive system of males and all the pathways involved in the dysfunction of the reproductive system. This will help interpret the effects of DM on male reproductive health.
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Affiliation(s)
- Nida Andlib
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India; Department of Reproductive Biomedicine, The National Institute of Health, and Family Welfare, Baba Gang Nath Marg, Munirka, New Delhi 110067, India
| | - Mohd Sajad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India; Department of Reproductive Biomedicine, The National Institute of Health, and Family Welfare, Baba Gang Nath Marg, Munirka, New Delhi 110067, India
| | - Rajesh Kumar
- Department of Reproductive Biomedicine, The National Institute of Health, and Family Welfare, Baba Gang Nath Marg, Munirka, New Delhi 110067, India
| | - Sonu Chand Thakur
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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Histological investigation of the protective effect of metformin on testis and sperm parameters in obese rats with type 2 diabetes mellitus. JOURNAL OF SURGERY AND MEDICINE 2021. [DOI: 10.28982/josam.956929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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7
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Wiegel RE, von Versen-Höynck F, Steegers-Theunissen RPM, Steegers EAP, Danser AHJ. Prorenin periconceptionally and in pregnancy: Does it have a physiological role? Mol Cell Endocrinol 2021; 529:111281. [PMID: 33878417 DOI: 10.1016/j.mce.2021.111281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 11/24/2020] [Accepted: 12/06/2020] [Indexed: 12/30/2022]
Abstract
Pregnancy demands major cardiovascular, renal and endocrine changes to provide an adequate blood supply for the growing fetus. The renin-angiotensin-aldosterone system plays a key role in this adaptation process. One of its components, prorenin, is released in significant amounts from the ovary and uteroplacental unit. This review describes the sources of prorenin in the periconception period and in pregnancy, including its modulation by in-vitro fertilization protocols, and discusses its potential effects, among others focusing on preeclampsia. It ends with discussing the long-term consequences, even in later life, of inappropriate renin-angiotensin-aldosterone system activity in pregnancy and offers directions for future research. Ultimately, a full understanding of the role of prorenin periconceptionally and during pregnancy will help to develop tools to diagnose and/or prevent reproductive complications.
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Affiliation(s)
- Rosalieke E Wiegel
- Departments of Obstetrics and Gynecology, Erasmus MC, Rotterdam, the Netherlands
| | | | | | - Eric A P Steegers
- Departments of Obstetrics and Gynecology, Erasmus MC, Rotterdam, the Netherlands
| | - A H Jan Danser
- Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands.
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Wiegel RE, von Versen-Höynck F, Steegers-Theunissen RPM, Steegers EAP, Danser AHJ. Prorenin periconceptionally and in pregnancy: Does it have a physiological role? Mol Cell Endocrinol 2021; 522:111118. [PMID: 33340569 DOI: 10.1016/j.mce.2020.111118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 11/24/2020] [Accepted: 12/06/2020] [Indexed: 01/19/2023]
Abstract
Pregnancy demands major cardiovascular, renal and endocrine changes to provide an adequate blood supply for the growing fetus. The renin-angiotensin-aldosterone system plays a key role in this adaptation process. One of its components, prorenin, is released in significant amounts from the ovary and uteroplacental unit. This review describes the sources of prorenin in the periconception period and in pregnancy, including its modulation by in-vitro fertilization protocols, and discusses its potential effects, among others focusing on preeclampsia. It ends with discussing the long-term consequences, even in later life, of inappropriate renin-angiotensin-aldosterone system activity in pregnancy and offers directions for future research. Ultimately, a full understanding of the role of prorenin periconceptionally and during pregnancy will help to develop tools to diagnose and/or prevent reproductive complications.
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Affiliation(s)
- Rosalieke E Wiegel
- Department of Obstetrics and Gynecology, Erasmus MC, Rotterdam, the Netherlands
| | | | | | - Eric A P Steegers
- Department of Obstetrics and Gynecology, Erasmus MC, Rotterdam, the Netherlands
| | - A H Jan Danser
- Department of Internal Medicine, Erasmus MC, Rotterdam, the Netherlands.
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Regulation of the plasminogen activator activity and inflammatory environment via transforming growth factor-beta regulation of sperm in porcine uterine epithelial cells. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2020. [DOI: 10.12750/jarb.35.4.297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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10
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Tokmakov AA, Stefanov VE, Sato KI. Dissection of the Ovulatory Process Using ex vivo Approaches. Front Cell Dev Biol 2020; 8:605379. [PMID: 33363163 PMCID: PMC7755606 DOI: 10.3389/fcell.2020.605379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 11/19/2020] [Indexed: 12/23/2022] Open
Abstract
Ovulation is a unique physiological phenomenon that is essential for sexual reproduction. It refers to the entire process of ovarian follicle responses to hormonal stimulation resulting in the release of mature fertilization-competent oocytes from the follicles and ovaries. Remarkably, ovulation in different species can be reproduced out-of-body with high fidelity. Moreover, most of the molecular mechanisms and signaling pathways engaged in this process have been delineated using in vitro ovulation models. Here, we provide an overview of the major molecular and cytological events of ovulation observed in frogs, primarily in the African clawed frog Xenopus laevis, using mainly ex vivo approaches, with the focus on meiotic oocyte maturation and follicle rupture. For the purpose of comparison and generalization, we also refer extensively to ovulation in other biological species, most notoriously, in mammals.
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Affiliation(s)
| | - Vasily E Stefanov
- Department of Biochemistry, Saint Petersburg State University, Saint Petersburg, Russia
| | - Ken-Ichi Sato
- Faculty of Life Sciences, Kyoto Sangyo University, Kyoto, Japan
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Liu X, Wang Y, Zhu P, Wang J, Liu J, Li N, Wang W, Zhang W, Zhang C, Wang Y, Shen X, Liu F. Human follicular fluid proteome reveals association between overweight status and oocyte maturation abnormality. Clin Proteomics 2020; 17:22. [PMID: 32528235 PMCID: PMC7282111 DOI: 10.1186/s12014-020-09286-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 05/30/2020] [Indexed: 12/20/2022] Open
Abstract
Background Human follicular fluid (HFF), which is composed by essential proteins required for the follicle development, provides an important microenvironment for oocyte maturation. Recently, overweight status has been considered as a detrimental impact factor on oocyte maturation, but whether HFF proteome could provide protein markers for assessing overweight-based oocyte maturation deficiency is still unknown. Methods To reveal the HFF-based molecular characteristics associated with abnormal oocyte maturation, an iTRAQ-based comparative proteomic analysis was performed to investigate different HFF protein expression profiles from normal weight women and overweight status women. Results Two hundred HFF proteins were quantified in our data, of which 43% have not been overlapped by two previous publications. Compared with the HFF proteins of normal weight women, 22 up-regulated HFF proteins and 21 down-regulated HFF proteins were found in the overweight status women. PANTHER database showed these altered HFF proteins participated in development, metabolism, immunity, and coagulation, and STRING database demonstrated their complicated interaction networks. The confidence of proteomic outcome was verified by Western blot analysis of WAP four-disulfide core domain protein 2 (WFDC2), lactotransferrin (LTF), prostate-specific antigen (KLK3), fibronectin (FN1), and glyceraldehyde 3-phosphate dehydrogenase (GAPDH). Further, ELISA assay indicated WFDC2 might be a potentially useful candidate HFF marker for the diagnosis of oocyte maturation arrest caused by overweight status. Conclusions Our work provided a new complementary high-confidence HFF dataset involved in oocyte maturation, and these altered HFF proteins might have clinical relevance and diagnostic and prognostic value for abnormal oocyte maturation in overweight status women.
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Affiliation(s)
- Xin Liu
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Yanhua Wang
- Department of Medical Records Room, Weifang People's Hospital, Weifang, 261041 Shandong People's Republic of China
| | - Peng Zhu
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Jiahui Wang
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Juan Liu
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Ning Li
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Wenting Wang
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Wendi Zhang
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Chengli Zhang
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Yanwei Wang
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
| | - Xiaofang Shen
- Reproductive Center, Beijing BaoDao Obstetrics and Gynecology Hospital, Beijing, 100000 People's Republic of China
| | - Fujun Liu
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People's Republic of China
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12
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Değer U, Çavuş Y. Investigation of the role of rosmarinic acid treatment in regulating inflammation, cell damage, and angiogenesis in rat ovarian torsion and detorsion models. Acta Cir Bras 2020; 35:e202000304. [PMID: 32692796 PMCID: PMC7251978 DOI: 10.1590/s0102-865020200030000004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/24/2020] [Accepted: 02/20/2020] [Indexed: 02/07/2023] Open
Abstract
PURPOSE To investigate the protective effect of rosmarinic acid (RA) in ovarian ischemia/reperfusion injury using biochemical, histopathological, and immunohistochemical methods. METHODS Wistar female rats (n = 32) were randomly divided into four groups: control, ischemia, ischemia-reperfusion, and ischemia-reperfusion with RA. Rosmarinic acid was given at a dose of 50 mg/kg by oral gavage three hours after reperfusion. Malondialdehyde (MDA) levels and glutathione peroxidase (GSH-Px) activities were determined in the ovary tissue homogenates for each rat. RESULTS In the ischemia-reperfusion with RA group, the epithelial cells are regularly regulated at the periphery, and the degenerative changes in preantral and antral follicle cells are reduced. Follicle cells and cells in the corpus luteum showed a decrease in vascular endothelial growth factor (VEGF) expression, while VEGF demonstrated a positive reaction in vascular endothelial cells and stromal cells. The TNF-α expression due to the decreased degenerative effect and inflammation was positive in the macrophage cells. The expression of caspase-3 as an apoptosis change was negative in antral follicle cells and granular cells around the antral follicle. CONCLUSION Different doses of RA may be useful in preventing ischemic damage after vascularization, inflammation, and apoptotic development after ischemia/reperfusion.
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Affiliation(s)
- Uğur Değer
- MD, Department of Obstetrics and Gynecology, Memorial Hospital, Diyarbakır, Turkey. Technical procedures, histopathological examinations, manuscript preparation and writing, final approval
| | - Yunus Çavuş
- MD, Department of Obstetrics and Gynecology, Memorial Hospital, Diyarbakır, Turkey. Technical procedures, histopathological examinations, manuscript preparation and writing, final approval
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13
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Ibrahim D, Abdel-Maksoud FM. Immunohistochemical and Ultrastructural Features of the Seasonal Changes in the Epididymal Epithelium of Camel ( Camelus dromedarius). MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2019; 25:1273-1282. [PMID: 31547896 DOI: 10.1017/s1431927619014843] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In order to evaluate the influence of reproductive activity on the functional role of the epididymal epithelium in the Egyptian dromedary camel, Connexin-43 (Cx-43), vascular endothelial growth factor (VEGF), and androgen receptor (AR) immunoreactivity in the epididymal epithelium and the fine structure of the principal, dark, basal, apical, and halo cells were investigated. The secretory activity of the principal cells was amplified in the breeding season, while its endocytotic function became more active in the nonbreeding season. This was evidenced by punctate strong immunoreactive signals for Cx-43, which appeared to be more intense in the apical region of these epithelial cells, and the extremely long slender stereocilia (microvilli) with multiple junctional complexes. The nonbreeding principal cells revealed granular immunoreactive signals for VEGF scattered in the apical and basal cytoplasm. Ultrastructurally, both extreme vacuolation and several multivesicular inclusion bodies were observed in their cytoplasm. Dark cell size greatly diminished in the nonbreeding season and their nuclear morphology greatly changed from oval to lobulated shape. The plasma membrane of the apical cells expressed several infoldings (microvilli) in the breeding season. However, it was almost smooth in the nonbreeding season except for a small microvillus that appeared as a bleb-like projection. In some regions, a strong dense immunoreactivity for VEGF could be recognized in the cytoplasm of the apical cells and some basal ones. Halo cells with numerous multivesicular inclusions occupying most of the cytoplasm and a lobulated eccentric nucleus were detected in the nonbreeding season. In conclusion, these findings indicate that the reproductive activity has a significant impact on the immunohistochemical and ultrastructural profiles of the epithelial cells lining the Egyptian dromedary camel epididymis.
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Affiliation(s)
- Dalia Ibrahim
- Department of Histology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - Fatma M Abdel-Maksoud
- Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assuit University, Assuit, Egypt
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14
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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: 252] [Impact Index Per Article: 50.4] [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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15
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Dutra GA, Ishak GM, Pechanova O, Pechan T, Peterson DG, Jacob JCF, Willard ST, Ryan PL, Gastal EL, Feugang JM. Seasonal variation in equine follicular fluid proteome. Reprod Biol Endocrinol 2019; 17:29. [PMID: 30841911 PMCID: PMC6404268 DOI: 10.1186/s12958-019-0473-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 02/26/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Proteomic studies of follicular fluid (FF) exist for several species, including the horse; however, the seasonal influence on FF proteome has not been explored in livestock. The application of high-throughput proteomics of FF in horse has the potential to identify seasonal variations of proteins involved in follicle and oocyte growth. METHODS This study (i) profiles the proteomes of equine FF collected from dominant growing follicles during the spring anovulatory season (SAN), and spring (SOV), summer (SUM), and fall (FOV) ovulatory seasons; and (ii) identifies season-dependent regulatory networks and associated key proteins. RESULTS Regardless of season, a total of 90 proteins were identified in FF, corresponding to 63, 72, 69, and 78 proteins detected in the SAN, SOV, SUM, and FOV seasons, respectively. Fifty-two proteins were common to all seasons, a total of 13 were unique to either season, and 25 were shared between two seasons or more. Protein-to-protein interaction (PPI) analysis indicated the likely critical roles of plasminogen in the SAN season, the prothrombin/plasminogen combination in SUM, and plasminogen/complement C3 in both SOV and FOV seasons. The apolipoprotein A1 appeared crucial in all seasons. The present findings show that FF proteome of SUM differs from other seasons, with FF having high fluidity (low viscosity). CONCLUSIONS The balance between the FF contents in prothrombin, plasminogen, and coagulation factor XII proteins favoring FF fluidity may be crucial at the peak of the ovulatory season (SUM) and may explain the reported lower incidence of hemorrhagic anovulatory follicles during the SUM season.
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Affiliation(s)
- G A Dutra
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
- Department of Reproduction and Animal Evaluation, Federal Rural University of Rio de Janeiro, Seropédica, Brazil
| | - G M Ishak
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
- Department of Surgery and Obstetrics, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq
| | - O Pechanova
- Institute for Genomics, Biocomputing and Bioinformatics, University, Mississippi State, Oxford, MS, USA
| | - T Pechan
- Institute for Genomics, Biocomputing and Bioinformatics, University, Mississippi State, Oxford, MS, USA
| | - D G Peterson
- Institute for Genomics, Biocomputing and Bioinformatics, University, Mississippi State, Oxford, MS, USA
| | - J C F Jacob
- Department of Reproduction and Animal Evaluation, Federal Rural University of Rio de Janeiro, Seropédica, Brazil
| | - S T Willard
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, 4025 Wise Center, PO Box 9815, Mississippi State, MS, 39762, USA
| | - P L Ryan
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, 4025 Wise Center, PO Box 9815, Mississippi State, MS, 39762, USA
| | - E L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - J M Feugang
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, 4025 Wise Center, PO Box 9815, Mississippi State, MS, 39762, USA.
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16
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García-Vázquez FA, Soriano-Úbeda C, Laguna-Barraza R, Izquierdo-Rico MJ, Navarrete FA, Visconti PE, Gutiérrez-Adán A, Coy P. Tissue plasminogen activator (tPA) of paternal origin is necessary for the success of in vitro but not of in vivo fertilisation in the mouse. Reprod Fertil Dev 2019; 31:433-442. [DOI: 10.1071/rd18175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/09/2018] [Indexed: 11/23/2022] Open
Abstract
Besides its fibrinolytic function, the plasminogen–plasmin (PLG–PLA) system is also involved in fertilisation, where plasminogen activators bind to plasminogen to produce plasmin, which modulates sperm binding to the zona pellucida. However, controversy exists, depending on the species, concerning the role of the different components of the system. This study focused its attention on the role of the PLG–PLA system on fertilisation in the mouse with special attention to tissue plasminogen activator (tPA). The presence of exogenous plasminogen reduced invitro fertilisation (IVF) rates and this decline was attenuated by the presence of plasmin inhibitors in combination with plasminogen. The incubation of spermatozoa with either oocytes or cumulus cells together with plasminogen did not change the acrosome reaction but reduced the number of spermatozoa attached. When spermatozoa from tPA−/− mice were used, the IVF rate decreased drastically, although the addition of exogenous tPA during gamete co-incubation under invitro conditions increased fertilisation success. Moreover, fertility could not be restored after invivo insemination of tPA−/− spermatozoa in the female ampulla, although tPA−/− males were able to fertilise invivo. This study suggests a regulatory role of the PLG–PLA system during fertilisation in the mouse with possible implications in human reproduction clinics, such as failures in tPA production, which could be partially resolved by the addition of exogenous tPA during IVF treatment.
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17
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Hwangbo Y, Lee MR, Cheong HT, Yang BK, Park CK. Effects of Progesterone and 17β-Estradiol under Presence or Absence of FBS on Plasminogen Activators Activity in Porcine Uterine Epithelial Cells. Dev Reprod 2018; 22:309-318. [PMID: 30680330 PMCID: PMC6344362 DOI: 10.12717/dr.2018.22.4.309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/20/2018] [Accepted: 11/10/2018] [Indexed: 12/03/2022]
Abstract
The present study was conducted to investigate the regulatory mechanism of
plasminogen activators (PAs) activation by 17β-estradiol (E2)
and progesterone (P4) in porcine uterine epithelial cells (pUECs).
pUECs were collected from porcine uterine horn and cultured at 80% confluence.
Then, 0.1% (v/v) DMSO, 20 ng/mL E2, and P4 with or without
fetal bovine serum (FBS) treated to cultured cells for 24 hours. The
supernatants were used for measurement of PAs activity and expression of
urokinase-type PA (uPA), tissue-type PA (tPA),
uPA specific receptor (uPAR), and type-1 PA inhibitor
(PAI-1) mRNA were analyzed by real-time PCR. The expression
of PAs-related genes was not affect by steroid hormones in both of serum
treatment groups. However, PAs activity was increased by treatment of
E2 compared to 0.1% DMSO treatment in serum-free group
(p<0.05). Then, E2 and P4 were
diluted with 0.002% (v/v) DMSO for reduction of its effect and treated to
cultured cells without FBS. Only tPA mRNA was significantly
increased by E2 treatment (p<0.05). PAs
activity was enhanced in E2 treated group compared to control groups
(p<0.05). These results indicate that serum-free
condition is more proper to evaluate effect of steroid hormones and activation
of PAs in pUECs was mainly regulated by estrogen. These regulation of PAs
activation may be associated with uterine remodeling during pre-ovulatory phase
in pigs, however, further studies are needed to investigate precise regulatory
mechanism.
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Affiliation(s)
- Yong Hwangbo
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Mi-Rim Lee
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea.,Maria Fertility Hospital, Goyang 10387, Korea
| | - Hee-Tae Cheong
- College of Veterinary Medicine, Kangwon National University, Chunchoen 24341, Korea
| | - Boo-Keun Yang
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Choon-Keun Park
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
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18
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Hwangbo Y, Cheong HT, Yang BK, Park CK. Effects of 17β-estradiol, Interleukin-1β, and Human Chorionic Gonadotropin on Activity and mRNA Expression of Plasminogen Activators in Porcine Endometrial Cells. Dev Reprod 2018; 22:155-163. [PMID: 30023465 PMCID: PMC6048310 DOI: 10.12717/dr.2018.22.2.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 06/20/2018] [Accepted: 06/26/2018] [Indexed: 11/17/2022]
Abstract
This study aimed to investigate changes in the activity and mRNA expression of
plasminogen activators (PAs) induced by 17β-estradiol (E2),
human chorionic gonadotropin (hCG), and interleukin-1β (IL-1β) in
porcine endometrial cells. Endometrial cells were isolated from the epithelium
and cultured to 80% confluence. They were then treated for 24 h with
E2 (0.2, 2, 20, and 200 ng/mL), IL-1β (0.1, 1, 10, and 100
ng/mL), and hCG (0.5, 1, 1.5 and 2 IU/mL). mRNA expressions of urokinase-type
(uPA) and tissue-type (tPA) PAs were analyzed using reverse transcription PCR,
and activities were measured using a PA activity assay. mRNA expressions of uPA
and tPA increased with E2 treatment; however, this was not
significant. Similarly, treatment with hCG did not influence the mRNA
expressions of PAs. Interestingly, treatment with 0.1 ng/mL IL-1β
significantly reduced the mRNA expression of uPA, but did not affect that of
tPA. Treatment with 2, 20, and 200 ng/mL E2 increased PA activity
compared with the control group; treatment with 0.1 and 1 ng/mL IL-1β
significantly increased PA activity compared with the other IL-1β
treatment groups, whereas treatment with 10 and 100 ng/mL IL-1β
decreased. Treatment with 2 IU/mL hCG increased PA activity compared with the
other treatment groups, although there were no significant differences between
the hCG and control groups. In conclusion, the activity and mRNA expression of
PAs were differently regulated by the hormone/cytokine and its concentration in
porcine endometrial cells. Therefore, understanding PA regulatory mechanisms may
help to improve the reproductive potential of domestic animals.
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Affiliation(s)
- Yong Hwangbo
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Hee-Tae Cheong
- College of Veterinary Medicine, Kangwon National University, Chunchoen 24341, Korea
| | - Boo-Keun Yang
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Choon-Keun Park
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
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19
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Grande G, Milardi D, Baroni S, Luca G, Pontecorvi A. Identification of seminal markers of male accessory gland inflammation: From molecules to proteome. Am J Reprod Immunol 2018; 80:e12992. [DOI: 10.1111/aji.12992] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 05/16/2018] [Indexed: 12/11/2022] Open
Affiliation(s)
- Giuseppe Grande
- International Scientific Institute “Paul VI”; Rome Italy
- Division of Endocrinology and Metabolic Diseases; Fondazione Policlinico Universitario “A. Gemelli”; Rome Italy
| | - Domenico Milardi
- International Scientific Institute “Paul VI”; Rome Italy
- Division of Endocrinology and Metabolic Diseases; Fondazione Policlinico Universitario “A. Gemelli”; Rome Italy
| | - Silvia Baroni
- Institute of Biochemistry and Clinical Biochemistry; Catholic University; Rome Italy
| | - Giovanni Luca
- Department of Experimental Medicine; University of Perugia; Perugia Italy
| | - Alfredo Pontecorvi
- Division of Endocrinology and Metabolic Diseases; Fondazione Policlinico Universitario “A. Gemelli”; Rome Italy
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20
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Tabecka-Lonczynska A, Mytych J, Solek P, Kulpa-Greszta M, Sowa-Kucma M, Koziorowski M. Vascular endothelial growth factor (VEGF-A) and fibroblast growth factor (FGF-2) as potential regulators of seasonal reproductive processes in male European bison (Bison bonasus, Linnaeus 1758). Gen Comp Endocrinol 2018; 263:72-79. [PMID: 29626449 DOI: 10.1016/j.ygcen.2018.04.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 03/04/2018] [Accepted: 04/03/2018] [Indexed: 11/25/2022]
Abstract
Growth factors: vascular endothelial growth factor A (VEGF-A) and fibroblast growth factor (FGF-2) were reported to affect normal physiological reproductive processes in human, domestic and free living animals. Moreover, some reports suggest that VEGF-A and FGF-2 may be directly involved in the control of the annual reproductive cycle of seasonally breeding animals but detailed knowledge is still missing. Our study aimed to demonstrate the expression of mRNA and protein for both factors in the tissues of testis and epididymis (caput, corpus, cauda) at different periods of the year (March, June, November, December) in European bison as a model of seasonally breeding animal. Results suggest, that VEGF-A expression was more pronounced in testis than in epididymis and the highest expression was noted in December and June. Surprisingly, the highest protein accumulation was observed in June at the same level in all tissues analyzed. On the other hand, the highest FGF-2 mRNA expression was noted in testis in June and in epididymis in March. However, no differences in protein expression of FGF-2 were found between analyzed groups. The results indicate that both factors are necessary for proper functioning of the reproductive system and their levels differ seasonally. Perhaps, it is linked to increased need of these factors in the testis as well as epididymis during preparation for the reproductive functions. Moreover, VEGF-A and FGF-2 not only may regulate reproductive functions by affecting vascularization and cell nutrition, but it also may be possible that they possess protective functions by stabilizing the reproductive cells. Therefore, obtained results provide new insight into mechanisms underlying seasonal breeding of the male European bison.
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Affiliation(s)
- Anna Tabecka-Lonczynska
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland.
| | - Jennifer Mytych
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
| | - Przemyslaw Solek
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
| | - Magdalena Kulpa-Greszta
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
| | - Magdalena Sowa-Kucma
- Institute of Pharmacology, Polish Academy of Sciences, Department of Neurobiology, Laboratory of Trace Elements Neurobiology, Smeta 12, 31-343 Kraków, Poland; Department of Human Physiology, Institute of Clinical and Experimental Medicine, Medical Faculty, University of Rzeszow, Kopisto 2a, 35-310 Rzeszów, Poland
| | - Marek Koziorowski
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
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21
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Long L, Qiu H, Cai B, Chen N, Lu X, Zheng S, Ye X, Li Y. Hyperglycemia induced testicular damage in type 2 diabetes mellitus rats exhibiting microcirculation impairments associated with vascular endothelial growth factor decreased via PI3K/Akt pathway. Oncotarget 2018; 9:5321-5336. [PMID: 29435181 PMCID: PMC5797052 DOI: 10.18632/oncotarget.23915] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/01/2017] [Indexed: 12/13/2022] Open
Abstract
As an endocrine disease, type 2 diabetes mellitus (T2DM) can cause testicular damage which induces male infertility. However, the underlying mechanism is still not clear. We prove that T2DM induced testicular microcirculation impairment involves the decrease of VEGF and these actions are regulated by PI3K/Akt pathway. In our study, rats were divided into three groups (n=8): control group, diabetes group and diabetes + VEGF group. Intraperitoneal injection of streptozotocin (STZ, 65mg/Kg, at 9th week) and daily high-fat diet were used to establish T2DM rat model. Serum glucose in diabetes group and diabetes + VEGF group obviously exceeded 13mmol/L after STZ injection. Immunohistochemical studies indicated that VEGF level in diabetes group significantly decreased. In diabetes group, testicular blood velocity and vascular area reduced evaluated by Doppler and FITC. Furthermore, atrophic testicular morphology and increasing apoptosis cells were evaluated by haematoxylin and eosin staining and TUNEL assay. In diabetes + VEGF group, the administration of VEGF (intraperitoneally, 10mg/kg) can significantly alleviated hyperglycemia-induced impairment of testes in above aspects. Finally, we used Western blot to analyze the mechanism of hyperglycemia-induced testicular VEGF decrease. The results indicated that hyperglycemia-induced VEGF decreased is regulated by PI3K/Akt pathway in Rats testicular sertoli cells (RTSCs). Together, we demonstrate that T2DM can reduce testicular VEGF expression, which results in testicular microcirculation impairment, and then induces testicular morphological disarrangement and functional disorder. These actions are triggered by PI3K/Akt pathway. Our findings provide solid evidence for VEGF becoming a therapeutic target in T2DM related male infertility.
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Affiliation(s)
- Lingli Long
- Translation Medicine Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Han Qiu
- Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Bing Cai
- The Reproductive Center of the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ningning Chen
- Department of Orthopedics, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Xiaofang Lu
- Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shuhui Zheng
- Translation Medicine Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiaoxin Ye
- University of New South Wales, Sydney, Australia
| | - Yubin Li
- The Reproductive Center of the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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22
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Omar SS, Aly RG, Badae NM. Vitamin E improves testicular damage in streptozocin-induced diabetic rats, via increasing vascular endothelial growth factor and poly(ADP-ribose) polymerase-1. Andrologia 2017; 50. [PMID: 29164711 DOI: 10.1111/and.12925] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2017] [Indexed: 01/05/2023] Open
Abstract
The precise mechanism by which diabetes impairs spermatogenesis and testicular function is not exactly known. Vascular endothelial growth factor (VEGF) and poly(ADP-ribose) polymerase-1 (PARP-1) are important for germ cell homeostasis and repair of DNA respectively. The aim of this study was to investigate the correlation between diabetes-induced testicular damage and testicular VEGF and PARP-1 expression and the possible protective role of vitamin E supplementation. A total of 45 male Wistar albino rats were randomly divided into three groups: Group I (nondiabetic rats), Group II (streptozocin-induced diabetic rats) and Group III (streptozocin-induced diabetic rats treated orally with 0.4 mg/kg vitamin E). Five weeks later, testicular tissue was used for assessment of MDA concentration by colorimetry, histopathological examination and immunostaining for PARP-1 and VEGFIn diabetic rats, testicular weight, seminiferous tubule diameter and germinal epithelial thickness were decreased, basement membrane was thickened and Johnsen score decreased. Reduced VEGF and PARP-1 immunostaining were associated with decreased Johnsen score in diabetic rats. Vitamin E administration was protective against oxidative stress-associated damage evidenced by lower MDA levels, improved testicular weight, spermatogenesis and higher immunostaining for VEGF and PARP-1. Testicular VEGF and PARP-1 might therefore be helpful biomarkers for diabetic testicular damage. Administration of vitamin E may have a protective role against diabetes-induced testicular damage.
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Affiliation(s)
- S S Omar
- Faculty of Medicine, Department of Dermatology, Venereology & Andrology, Alexandria University, Alexandria, Egypt
| | - R G Aly
- Faculty of Medicine, Department of Pathology, Alexandria University, Alexandria, Egypt
| | - N M Badae
- Faculty of Medicine, Department of Medical Physiology, Alexandria University, Alexandria, Egypt
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23
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Shen X, Liu X, Zhu P, Zhang Y, Wang J, Wang Y, Wang W, Liu J, Li N, Liu F. Proteomic analysis of human follicular fluid associated with successful in vitro fertilization. Reprod Biol Endocrinol 2017; 15:58. [PMID: 28750635 PMCID: PMC5530927 DOI: 10.1186/s12958-017-0277-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 07/19/2017] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Human follicular fluid (HFF) provides a key environment for follicle development and oocyte maturation, and contributes to oocyte quality and in vitro fertilization (IVF) outcome. METHODS To better understand folliculogenesis in the ovary, a proteomic strategy based on dual reverse phase high performance liquid chromatography (RP-HPLC) coupled to matrix-assisted laser desorption/ionization time-of-flight tandem mass spectrometry (LC-MALDI TOF/TOF MS) was used to investigate the protein profile of HFF from women undergoing successful IVF. RESULTS A total of 219 unique high-confidence (False Discovery Rate (FDR) < 0.01) HFF proteins were identified by searching the reviewed Swiss-Prot human database (20,183 sequences), and MS data were further verified by western blot. PANTHER showed HFF proteins were involved in complement and coagulation cascade, growth factor and hormone, immunity, and transportation, KEGG indicated their pathway, and STRING demonstrated their interaction networks. In comparison, 32% and 50% of proteins have not been reported in previous human follicular fluid and plasma. CONCLUSIONS Our HFF proteome research provided a new complementary high-confidence dataset of folliculogenesis and oocyte maturation environment. Those proteins associated with innate immunity, complement cascade, blood coagulation, and angiogenesis might serve as the biomarkers of female infertility and IVF outcome, and their pathways facilitated a complete exhibition of reproductive process.
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Affiliation(s)
- Xiaofang Shen
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
- Reproductive center, Beijing BaoDao obstetrics and gynecology hospital, Beijing, 100000 People’s Republic of China
| | - Xin Liu
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
| | - Peng Zhu
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
| | - Yuhua Zhang
- Reproductive Medicine Centre, Wei fang people’s hospital, Weifang, Shandong 261000 People’s Republic of China
| | - Jiahui Wang
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
| | - Yanwei Wang
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
| | - Wenting Wang
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
| | - Juan Liu
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
| | - Ning Li
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
| | - Fujun Liu
- grid.440323.2Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000 Shandong People’s Republic of China
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Wang EY, Huang Y, Du QY, Yao GD, Sun YP. Body mass index effects sperm quality: a retrospective study in Northern China. Asian J Androl 2017; 19:234-237. [PMID: 26732109 PMCID: PMC5312225 DOI: 10.4103/1008-682x.169996] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Excess weight and obesity have become a serious problem in adult men of reproductive age throughout the world. The purpose of this retrospective study was to assess the relationships between body mass index and sperm quality in subfertile couples in a Chinese Han population. Sperm analyses were performed and demographic data collected from 2384 male partners in subfertile couples who visited a reproductive medical center for treatment and preconception counseling. The subjects were classified into four groups according to their body mass index: underweight, normal, overweight, and obese. Of these subjects, 918 (38.3%) had a body mass index of >25.0 kg m-0 2 . No significant differences were found between the four groups with respect to age, occupation, level of education, smoking status, alcohol use, duration of sexual abstinence, or the collection time of year for sperm. The results clearly indicated lower sperm quality (total sperm count, sperm concentration, motile sperm, relative amounts of type A motility, and progressive motility sperm [A + B]) in overweight and obese participants than in those with normal body mass index. Normal sperm morphology and sperm volume showed no clear difference between the four groups. This study indicates that body mass index has a negative effect on sperm quality in men of subfertile couples in a Northern Chinese population. Further study should be performed to investigate the relationship between body mass index and sperm quality in a larger population.
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Affiliation(s)
- En-Yin Wang
- Reproductive Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yan Huang
- Reproductive Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Qing-Yun Du
- Reproductive Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Gui-Dong Yao
- Reproductive Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Ying-Pu Sun
- Reproductive Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Altıner Ş, Klammt J, Bernhard MK, Schuster V, Karabulut HG. Type I plasminogen deficiency with unexpected clinical aspects: Could be more than coexistence? COGENT MEDICINE 2017. [DOI: 10.1080/2331205x.2017.1334317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Şule Altıner
- Department of Medical Genetics, School of Medicine, Ankara University, Ankara TR 06100, Turkey
| | - Jürgen Klammt
- Hospital for Children and Adolescents, University of Leipzig, Leipzig, Germany
| | | | - Volker Schuster
- Hospital for Children and Adolescents, University of Leipzig, Leipzig, Germany
| | - Halil Gürhan Karabulut
- Department of Medical Genetics, School of Medicine, Ankara University, Ankara TR 06100, Turkey
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Lindgren KE, Nordqvist S, Kårehed K, Sundström-Poromaa I, Åkerud H. The effect of a specific histidine-rich glycoprotein polymorphism on male infertility and semen parameters. Reprod Biomed Online 2016; 33:180-8. [DOI: 10.1016/j.rbmo.2016.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 05/07/2016] [Accepted: 05/10/2016] [Indexed: 12/27/2022]
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Proteome Profile and Quantitative Proteomic Analysis of Buffalo (Bubalusbubalis) Follicular Fluid during Follicle Development. Int J Mol Sci 2016; 17:ijms17050618. [PMID: 27136540 PMCID: PMC4881444 DOI: 10.3390/ijms17050618] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 04/11/2016] [Accepted: 04/15/2016] [Indexed: 11/17/2022] Open
Abstract
Follicular fluid (FF) accumulates in the antrum of the ovarian follicle and provides the microenvironment for oocyte development. FF plays an important role in follicle growth and oocyte maturation. The FF provides a unique window to investigate the processes occurring during buffalo follicular development. The observed low quality of buffalo oocytes may arise from the poor follicular microenvironment. Investigating proteins found in buffalo FF (BFF) should provide insight into follicular development processes and provide further understanding of intra-follicular maturation and oocytes quality. Here, a proteomic-based approach was used to analyze the proteome of BFF. SDS-PAGE separation combined with mass spectrometry was used to generate the proteomic dataset. In total, 363 proteins were identified and classified by Gene Ontology terms. The proteins were assigned to 153 pathways, including signaling pathways. To evaluate difference in proteins expressed between BFF with different follicle size (small, <4 mm; and large, >8 mm), a quantitative proteomic analysis based on multi-dimensional liquid chromatography pre-fractionation tandem Orbitrap mass spectrometry identification was performed. Eleven differentially expressed proteins (six downregulated and five upregulated in large BFF) were identified and assigned to a variety of functional processes, including serine protease inhibition, oxidation protection and the complement cascade system. Three differentially expressed proteins, Vimentin, Peroxiredoxin-1 and SERPIND1, were verified by Western blotting, consistent with the quantitative proteomics results. Our datasets offers new information about proteins present in BFF and should facilitate the development of new biomarkers. These differentially expressed proteins illuminate the size-dependent protein changes in follicle microenvironment.
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Proteomic analysis of preovulatory follicular fluid reveals differentially abundant proteins in less fertile dairy cows. J Proteomics 2016; 139:122-9. [PMID: 27003612 DOI: 10.1016/j.jprot.2016.03.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 02/23/2016] [Accepted: 03/11/2016] [Indexed: 11/23/2022]
Abstract
UNLABELLED The follicular fluid (FF) proteome can provide an indication of follicular quality. High-yielding dairy cows suffer from low fertility, which could be related to follicular function. However, the proteome of preovulatory follicles has never been described in cows. Our objectives were to: 1) define the bovine preovulatory FF proteome, and 2) examine differentially abundant proteins in FF of controls (CTL, n=10) and less fertile cows (LFC; failed to conceive following ≥6 inseminations, n=8). Follicles ≥7mm in diameter were aspirated in vivo, and estradiol (E2) and progesterone (P4) were examined. The FF from 10 preovulatory follicles (E2/P4>1) was analyzed; E2 was higher and follicle diameter tended to be larger in LFC. As aspirations were conducted at a fixed time, this suggests accelerated follicular growth in LFC. The 219 identified and quantified proteins consisted mainly of binding proteins, proteases, receptor ligands, enzymes and transporters. Differential abundance of 8 relevant proteins was found in LFC compared to CTL: SERPINA1, TIMP2, ITIH1, HSPG2, C8A, COL1A2, F2, and IL1RAP. These proteins could influence follicular function-e.g., decreased SERPINA1 may be related to accelerated follicular growth-and therefore, further examination of their roles in the etiology of LFC is warranted. SIGNIFICANCE High yielding dairy cows suffer from infertility that leads to major economic losses worldwide. In Israel, about 30% of dairy cows fail to conceive following ≥4 inseminations. The etiology of this low fertility is multifactorial and remains a serious challenge. Follicular fluid proteome can provide indication to follicular quality, yet the proteome of pre-ovulatory follicles has not been described in cows. This work examined the differential abundance of proteins in less fertile dairy cows compared to controls, and found 8 relevant novel proteins that could influence follicular function. The role of these proteins in the etiology of less fertile cows should be further examined.
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Zhu G, Chen X, Mao Y, Kang L, Ma X, Jiang Y. Characterization of annexin A2 in chicken follicle development: Evidence for its involvement in angiogenesis. Anim Reprod Sci 2015; 161:104-11. [DOI: 10.1016/j.anireprosci.2015.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 08/13/2015] [Accepted: 08/25/2015] [Indexed: 01/22/2023]
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30
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Autilio C, Morelli R, Milardi D, Grande G, Marana R, Pontecorvi A, Zuppi C, Baroni S. Soluble urokinase-type plasminogen activator receptor as a putative marker of male accessory gland inflammation. Andrology 2015; 3:1054-61. [DOI: 10.1111/andr.12084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 05/06/2015] [Accepted: 06/23/2015] [Indexed: 01/12/2023]
Affiliation(s)
- C. Autilio
- Department of Diagnostic and Laboratory Medicine; School of Medicine; “A. Gemelli” Hospital; Catholic University; Rome Italy
| | - R. Morelli
- Department of Diagnostic and Laboratory Medicine; School of Medicine; “A. Gemelli” Hospital; Catholic University; Rome Italy
| | - D. Milardi
- International Scientific Institute “Paul VI” of Research on Human Fertility and Infertility; School of Medicine; “A. Gemelli” Hospital; Catholic University; Rome Italy
| | - G. Grande
- International Scientific Institute “Paul VI” of Research on Human Fertility and Infertility; School of Medicine; “A. Gemelli” Hospital; Catholic University; Rome Italy
| | - R. Marana
- International Scientific Institute “Paul VI” of Research on Human Fertility and Infertility; School of Medicine; “A. Gemelli” Hospital; Catholic University; Rome Italy
| | - A. Pontecorvi
- Department of Endocrinology; School of Medicine; “A. Gemelli” Hospital; Catholic University; Rome Italy
| | - C. Zuppi
- Department of Diagnostic and Laboratory Medicine; School of Medicine; “A. Gemelli” Hospital; Catholic University; Rome Italy
| | - S. Baroni
- Department of Diagnostic and Laboratory Medicine; School of Medicine; “A. Gemelli” Hospital; Catholic University; Rome Italy
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Coy P, Yanagimachi R. The Common and Species-Specific Roles of Oviductal Proteins in Mammalian Fertilization and Embryo Development. Bioscience 2015. [DOI: 10.1093/biosci/biv119] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Benkhalifa M, Madkour A, Louanjli N, Bouamoud N, Saadani B, Kaarouch I, Chahine H, Sefrioui O, Merviel P, Copin H. From global proteome profiling to single targeted molecules of follicular fluid and oocyte: contribution to embryo development and IVF outcome. Expert Rev Proteomics 2015; 12:407-23. [DOI: 10.1586/14789450.2015.1056782] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Elmes M, Szyszka A, Pauliat C, Clifford B, Daniel Z, Cheng Z, Wathes C, McMullen S. Maternal age effects on myometrial expression of contractile proteins, uterine gene expression, and contractile activity during labor in the rat. Physiol Rep 2015; 3:e12305. [PMID: 25876907 PMCID: PMC4425948 DOI: 10.14814/phy2.12305] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 01/21/2015] [Accepted: 01/22/2015] [Indexed: 01/09/2023] Open
Abstract
Advanced maternal age of first time pregnant mothers is associated with prolonged and dysfunctional labor and significant risk of emergency cesarean section. We investigated the influence of maternal age on myometrial contractility, expression of contractile associated proteins (CAPs), and global gene expression in the parturient uterus. Female Wistar rats either 8 (YOUNG n = 10) or 24 (OLDER n = 10) weeks old were fed laboratory chow, mated, and killed during parturition. Myometrial strips were dissected to determine contractile activity, cholesterol (CHOL) and triglycerides (TAG) content, protein expression of connexin-43 (GJA1), prostaglandin-endoperoxide synthase 2 (PTGS2), and caveolin 1 (CAV-1). Maternal plasma concentrations of prostaglandins PGE2, PGF2α, and progesterone were determined by RIA. Global gene expression in uterine samples was compared using Affymetrix Genechip Gene 2.0 ST arrays and Ingenuity Pathway analysis (IPA). Spontaneous contractility in myometrium exhibited by YOUNG rats was threefold greater than OLDER animals (P < 0.027) but maternal age had no significant effect on myometrial CAP expression, lipid profiles, or pregnancy-related hormones. OLDER myometrium increased contractile activity in response to PGF2α, phenylephrine, and carbachol, a response absent in YOUNG rats (all P < 0.002). Microarray analysis identified that maternal age affected expression of genes related to immune and inflammatory responses, lipid transport and metabolism, steroid metabolism, tissue remodeling, and smooth muscle contraction. In conclusion YOUNG laboring rat myometrium seems primed to contract maximally, whereas activity is blunted in OLDER animals and requires stimulation to meet contractile potential. Further work investigating maternal age effects on myometrial function is required with focus on lipid metabolism and inflammatory pathways.
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Affiliation(s)
- Matthew Elmes
- Division of Nutritional Sciences, University of Nottingham, Loughborough, UK
| | - Alexandra Szyszka
- Division of Nutritional Sciences, University of Nottingham, Loughborough, UK
| | - Caroline Pauliat
- Division of Nutritional Sciences, University of Nottingham, Loughborough, UK
| | - Bethan Clifford
- Division of Nutritional Sciences, University of Nottingham, Loughborough, UK
| | - Zoe Daniel
- Division of Nutritional Sciences, University of Nottingham, Loughborough, UK
| | - Zhangrui Cheng
- Royal Veterinary College, Reproduction and Development Group, Hatfield, UK
| | - Claire Wathes
- Royal Veterinary College, Reproduction and Development Group, Hatfield, UK
| | - Sarah McMullen
- Division of Nutritional Sciences, University of Nottingham, Loughborough, UK
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Ambekar AS, Kelkar DS, Pinto SM, Sharma R, Hinduja I, Zaveri K, Pandey A, Prasad TSK, Gowda H, Mukherjee S. Proteomics of follicular fluid from women with polycystic ovary syndrome suggests molecular defects in follicular development. J Clin Endocrinol Metab 2015; 100:744-53. [PMID: 25393639 PMCID: PMC5393508 DOI: 10.1210/jc.2014-2086] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
CONTEXT Polycystic ovary syndrome (PCOS), a major cause of anovulatory infertility, is characterized by arrested follicular growth. Altered protein levels in the follicular fluid surrounding the ovum may reflect the molecular defects of folliculogenesis in these women. OBJECTIVE To identify differentially regulated proteins in PCOS by comparing the follicular fluid protein repertoire of PCOS with healthy women. METHODS The follicular fluid samples were collected from PCOS and normo-ovulatory women undergoing in vitro fertilization. Follicular fluid proteins were subjected to digestion using trypsin, and resultant peptides were labeled with isobaric tags for relative and absolute quantification reagents and analyzed by liquid chromatography tandem mass spectrometry. Differential abundance of selected proteins was confirmed by ELISA. RESULTS A total of 770 proteins were identified, of which 186 showed differential abundance between controls and women with PCOS. Proteins involved in various processes of follicular development including amphiregulin; heparan sulfate proteoglycan 2; tumor necrosis factor, α-induced protein 6; plasminogen; and lymphatic vessel endothelial hyaluronan receptor 1 were found to be deregulated in PCOS. We also identified a number of new proteins from follicular fluid, whose function in the ovary is not yet clearly established. These include suprabasin; S100 calcium binding protein A7; and helicase with zinc finger 2, transcriptional coactivator. CONCLUSIONS Proteins indispensable for follicular growth were found to be differentially expressed in follicular fluid of women with PCOS, which may in part explain the aberrant folliculogenesis observed in these women.
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Affiliation(s)
- Aditi S Ambekar
- Department of Molecular Endocrinology (A.S.A., S.M.), National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai 400012, India; Institute of Bioinformatics (D.S.K., S.M.P., A.P., T.S.K.P., H.G.), International Technology Park, Bangalore 560066, India; Manipal University (S.M.P.), Madhav Nagar, Manipal 576104, Karnataka, India; Department of Neurochemistry (R.S.), National Institute of Mental Health and Neuro Sciences, Bangalore 560066, India; INKUS IVF Clinic (I.H., K.Z.), Mumbai 400004, India; and McKusick-Nathans Institute of Genetic Medicine and Departments of Biological Chemistry, Pathology and Oncology (A.P.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
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Nordqvist S, Kårehed K, Skoog Svanberg A, Menezes J, Åkerud H. Ovarian response is affected by a specific histidine-rich glycoprotein polymorphism: a preliminary study. Reprod Biomed Online 2014; 30:74-81. [PMID: 25456162 DOI: 10.1016/j.rbmo.2014.09.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 09/23/2014] [Accepted: 09/24/2014] [Indexed: 12/13/2022]
Abstract
Genetic polymorphisms involved in angiogenesis, apoptosis and chemokine signalling are associated with varying ovarian response and oocyte quality. The protein, histidine-rich glycoprotein (HRG), is involved in these processes, but its effect on ovarian response in IVF has not been previously studied. A single nucleotide polymorphism (SNP) in the HRG gene (C633T) seems to affect pregnancy results in IVF. Women with the C/C genotype had higher pregnancy rates, C/T had moderate rates and none of those in the T/T group conceived. The aim of this study was to investigate if the HRG C633T SNP affects ovarian response. The HRG C633T SNP genotype of 67 women with unexplained infertility undergoing IVF was analysed and related to medical data. The T/T genotype obtained fewer oocytes, including mature oocytes, despite higher dosages of FSH administered. Additionally, the highest proportion of women who had exclusively poor-quality embryos was in the T/T group. No differences in demographic factors known to affect these parameters were found. The results suggest that the HRG C633T SNP influences ovarian response. Further studies of this SNP may increase knowledge about the biological processes involved in oocyte development and, furthermore, improve predicted ovarian response and fertilization.
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Affiliation(s)
- Sarah Nordqvist
- Department of Women's and Children's Health, Uppsala University, SE-751 85 Uppsala, Sweden.
| | - Karin Kårehed
- Department of Women's and Children's Health, Uppsala University, SE-751 85 Uppsala, Sweden
| | - Agneta Skoog Svanberg
- Department of Women's and Children's Health, Uppsala University, SE-751 85 Uppsala, Sweden
| | - Judith Menezes
- Fertilitetscentrum Stockholm, Storängsvägen 10, SE-115 42 Stockholm, Sweden
| | - Helena Åkerud
- Department of Women's and Children's Health, Uppsala University, SE-751 85 Uppsala, Sweden
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Silva JF, Ocarino NM, Serakides R. Luteal activity of pregnant rats with hypo-and hyperthyroidism. J Ovarian Res 2014; 7:75. [PMID: 25298361 PMCID: PMC4107585 DOI: 10.1186/1757-2215-7-75] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 07/08/2014] [Indexed: 12/24/2022] Open
Abstract
Background Luteal activity is dependent on the interaction of various growth factors, cytokines and hormones, including the thyroid hormones, being that hypo- and hyperthyroidism alter the gestational period and are also a cause of miscarriage and stillbirth. Because of that, we evaluated the proliferation, apoptosis and expression of angiogenic factors and COX-2 in the corpus luteum of hypo- and hyperthyroid pregnant rats. Methods Seventy-two adult female rats were equally distributed into three groups: hypothyroid, hyperthyroid and control. Hypo- and hyperthyroidism were induced by the daily administration of propylthiouracil and L-thyroxine, respectively. The administration began five days before becoming pregnant and the animals were sacrificed at days 10, 14, and 19 of gestation. We performed an immunohistochemical analysis to evaluate the expression of CDC-47, VEGF, Flk-1 (VEGF receptor) and COX-2. Apoptosis was evaluated by the TUNEL assay. We assessed the gene expression of VEGF, Flk-1, caspase 3, COX-2 and PGF2α receptor using real time RT-PCR. The data were analyzed by SNK test. Results Hypothyroidism reduced COX-2 expression on day 10 and 19 (P < 0.05), endothelial/pericyte and luteal cell proliferation on day 10 and 14 (p < 0.05), apoptotic cell numbers on day 19 (p < 0.05) and the expression of Flk-1 and VEGF on day 14 and 19, respectively (p < 0.05). Hyperthyroidism increased the expression of COX-2 on day 19 (P < 0.05) and the proliferative activity of endothelial/pericytes cells on day 14 (p <0.05), as well as the expression of VEGF and Flk-1 on day 19 (P < 0.05). Conclusions Hypothyroidism reduces the proliferation, apoptosis and expression of angiogenic factors and COX-2in the corpus luteum of pregnant rats, contrary to what is observed in hyperthyroid animals, being this effect dependent of the gestational period.
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Potential novel biomarkers for diabetic testicular damage in streptozotocin-induced diabetic rats: nerve growth factor Beta and vascular endothelial growth factor. DISEASE MARKERS 2014; 2014:108106. [PMID: 24771956 PMCID: PMC3977428 DOI: 10.1155/2014/108106] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 01/17/2014] [Accepted: 01/17/2014] [Indexed: 12/19/2022]
Abstract
Background. It is well known that diabetes mellitus may cause testicular damage. Vascular endothelial growth factor (VEGF) and nerve growth factor beta (NGF-β) are important neurotrophic factors for male reproductive system. Objective. We aimed to investigate the correlation between testicular damage and testicular VEGF and NGF-β levels in diabetic rats. Methods. Diabetes was induced by streptozotocin (STZ, 45 mg/kg/i.p.) in adult rats. Five weeks later testicular tissue was removed; testicular VEGF and NGF-β levels were measured by ELISA. Testicular damage was detected by using hematoxylin and eosin staining and periodic acid-Schiff staining, and apoptosis was identified by terminal-deoxynucleotidyl-transferase-mediated dUTP nick end labeling (TUNEL). Seminiferous tubular sperm formation was evaluated using Johnsen's score. Results. In diabetic rats, seminiferous tubule diameter was found to be decreased; basement membrane was found to be thickened in seminiferous tubules and degenerated germ cells. Additionally, TUNEL-positive cells were increased in number of VEGF+ cells and levels of VEGF and NGF-β were decreased in diabetic testes. Correlation between VEGF and NGF-β levels was strong. Conclusion. These results suggest that the decrease of VEGF and NGF-β levels is associated with the increase of the apoptosis and testicular damage in diabetic rats. Testis VEGF and NGF-β levels could be potential novel biomarkers for diabetes induced testicular damage.
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In subfertile couple, abdominal fat loss in men is associated with improvement of sperm quality and pregnancy: a case-series. PLoS One 2014; 9:e86300. [PMID: 24520319 PMCID: PMC3919721 DOI: 10.1371/journal.pone.0086300] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 12/08/2013] [Indexed: 12/13/2022] Open
Abstract
Background The impact of overweight among men of reproductive-age may affect fertility. Abdominal fat, more than body mass index, is an indicator of higher metabolic risk, which seems to be involved in decreasing sperm quality. This study aims to assess the relationship between abdominal fat and sperm DNA fragmentation and the effect of abdominal fat loss, among 6 men in subfertile couples. Methods Sperm DNA fragmentation, abdominal fat and metabolic and hormonal profiles were measured in the 6 men before and after dietary advices. Seminal oxidative stress and antioxidant markers were determined. Results After several months of a lifestyle program, all 6 men lost abdominal fat (patient 1: loss of 3 points of abdominal fat, patient 2: loss of 3 points, patient 3: loss of 2 points, patient 4: loss of 1 point, patient 5: loss of 4 points and patient 6: loss of 13 points). At the same time, their rate of sperm DNA fragmentation decreased: 9.5% vs 31%, 24% vs 43%, 18% vs 47%, 26.3% vs 66%, 25.4% vs 35% and 1.7% vs 25%. Also, an improvement in both metabolic (significant decrease in triglycerides and total cholesterol; p = 0.0139) and hormonal (significant increase in testosterone/oestradiol ratio; p = 0.0139) blood profiles was observed after following the lifestyle program. In seminal plasma, the amount of SOD2 has significantly increased (p = 0.0139) while in parallel carbonylated proteins have decreased. Furthermore, all spouses got pregnant. All pregnancies were brought to term. Conclusion This study shows specifically that sperm DNA fragmentation among men in subfertile couples could be affected by abdominal fat, but improvement of lifestyle factor may correct this alteration. The effect of specific abdominal fat loss on sperm quality needs further investigation. The reduction of oxidative stress may be a contributing factor.
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Maternal soluble fms-like tyrosine kinase-1, placental growth factor, plasminogen activator inhibitor-2, and folate concentrations and early fetal size: the Generation R study. Am J Obstet Gynecol 2013; 209:121.e1-11. [PMID: 23583216 DOI: 10.1016/j.ajog.2013.04.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 02/22/2013] [Accepted: 04/04/2013] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Fetal growth is dependent on adequate development of the placenta. Impaired angiogenesis and vasculogenesis in early pregnancy compromises placental and embryonic development. The proteins soluble fms-like tyrosine kinase (sFlt)-1, placental growth factor (PlGF), and plasminogen activator inhibitor (PAI)-2, and the B vitamin folate are determinants of placental development. This study aims to identify associations between these maternal biomarkers and early fetal size. STUDY DESIGN From a prospective birth cohort study in The Netherlands, 1491 pregnant women were selected for this study. At a mean gestational age (GA) of 12.4 weeks (SD 0.8) maternal venous blood samples were obtained to determine the concentrations of sFlt-1, PlGF, PAI-2, and folate. Early fetal size was assessed with measurement of the crown-to-rump length (CRL) at a mean of 12.4 weeks' GA (SD 0.8). Analyses were performed using multivariable linear regression analyses with the biomarkers (continuous, quintiles) as regressors and CRL as main outcome measure. RESULTS Linear trend analysis showed positive associations between maternal sFlt-1 (P < .001), PlGF (P = .042), PAI-2 (P < .001), and folate (P = .039) and CRL. These associations were independent of GA, maternal age, height, body mass index, ethnicity, fetal sex, parity, educational level, smoking, and folic acid supplement use (folate not adjusted). CONCLUSION sFlt-1, PlGF, PAI-2, and folate are positively associated with first-trimester fetal size.
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Seow KM, Lin YH, Bai CH, Chen HJ, Hsieh BC, Huang LW, Tzeng CR, Hwang JL. Clinical outcome according to timing of cabergoline initiation for prevention of OHSS: a randomized controlled trial. Reprod Biomed Online 2013; 26:562-8. [DOI: 10.1016/j.rbmo.2013.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 03/06/2013] [Accepted: 03/12/2013] [Indexed: 10/27/2022]
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Proteomic analysis of human follicular fluid: a new perspective towards understanding folliculogenesis. J Proteomics 2013; 87:68-77. [PMID: 23707233 DOI: 10.1016/j.jprot.2013.05.017] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 04/23/2013] [Accepted: 05/14/2013] [Indexed: 01/20/2023]
Abstract
UNLABELLED Human follicular fluid is a complex body fluid that constitutes the microenvironment of developing follicles in the ovary. Follicular fluid contains a number of proteins that modulate oocyte maturation and ovulation. Information about the protein constituents of follicular fluid may provide a better understanding of ovarian physiology in addition to opening new avenues for investigating ovarian disorders. However, the composition of follicular fluid proteome remains poorly defined. In this study, we carried out SDS-PAGE, OFFGEL and SCX-based separation followed by LC-MS/MS analysis to characterize the proteome of human follicular fluid. We report high confidence identification of 480 proteins, of which 320 have not been described previously in the follicular fluid. The identified proteins belong to diverse functional categories including growth factor and hormones, receptor signaling, enzyme catalysis, defense/immunity and complement activity. Our dataset should serve as a resource for future studies aimed at developing biomarkers for monitoring oocyte and embryo quality, pregnancy outcomes and ovarian disorders. BIOLOGICAL SIGNIFICANCE Proteome analysis of human follicular fluid by multi-pronged approach of protein peptide fractionation revealed 480 proteins with high confidence. The identified protein may facilitate the understanding of folliculogenesis. This protein dataset should serve as a useful resource for development of biomarkers for oocyte quality, in vitro fertilization techniques and female infertility.
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Silva JF, Ocarino NM, Vieira ALS, Nascimento EF, Serakides R. Effects of hypo- and hyperthyroidism on proliferation, angiogenesis, apoptosis and expression of COX-2 in the corpus luteum of female rats. Reprod Domest Anim 2013; 48:691-8. [PMID: 23369109 DOI: 10.1111/rda.12149] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Accepted: 01/03/2013] [Indexed: 11/27/2022]
Abstract
Although thyroid dysfunction occurs frequently in humans and some animal species, the mechanisms by which hypo- and hyperthyroidism affect the corpus luteum have not been thoroughly elucidated. This study evaluated the levels of proliferative activity, angiogenesis, apoptosis and expression of cyclooxygenase-2 in the corpus luteum of female rats with thyroid dysfunction. These processes may be important in understanding the reproductive changes caused by thyroid dysfunction. A total of 18 adult female rats were divided into three groups (control, hypothyroid and hyperthyroid) with six animals per group. Three months after treatment to induce thyroid dysfunction, the rats were euthanized in the dioestrus phase. The ovaries were collected and immunohistochemically analysed for expression of the cell proliferation marker CDC-47, vascular endothelial growth factor (VEGF), VEGF receptor Flk-1 and cyclooxygenase-2 (COX-2). Apoptosis was evaluated using the TUNEL assay. Hypothyroidism reduced the intensity and area of COX-2 expression in the corpus luteum (p < 0.05), while hyperthyroidism did not alter COX-2 expression in the dioestrus phase. Hypothyroidism significantly reduced the expression of CDC-47 in endothelial cells and pericytes in the corpus luteum, whereas hyperthyroidism did not induce a detectable change in CDC-47 expression (p > 0.05). Hypothyroidism reduced the level of apoptosis in luteal cells (p < 0.05) and increased VEGF expression in the corpus luteum. In contrast, hyperthyroidism increased the level of apoptosis in the corpus luteum (p < 0.05). In conclusion, thyroid dysfunction differentially affects the levels of proliferative activity, angiogenesis and apoptosis and COX-2 expression in the corpus luteum of female rats.
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Affiliation(s)
- J F Silva
- Departamento de Clínica e Cirurgia Veterinária, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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Hammiche F, Laven JSE, Twigt JM, Boellaard WPA, Steegers EAP, Steegers-Theunissen RP. Body mass index and central adiposity are associated with sperm quality in men of subfertile couples. Hum Reprod 2012; 27:2365-72. [PMID: 22693175 DOI: 10.1093/humrep/des177] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The incidence of overweight and obesity in men of reproductive ages is rising, which may affect fertility. Therefore, this study aims to assess the associations between BMI, central adiposity and sperm parameters in men of subfertile couples. METHODS Ejaculate volume (ml), sperm concentration (millions per ml), percentage of progressive motile and immotile spermatozoa and total motile sperm count (millions) were measured in 450 men of subfertile couples visiting a tertiary outpatient clinic for reproductive treatment and preconception counseling. RESULTS Overweight was negatively associated with the percentage of progressive motility type A [β -0.32 (SE 0.2), P=0.036] and positively associated with the percentage of immotility type C [β 0.21 (SE 0.07), P=0.002]. Obesity was negatively associated with ejaculate volume [β-0.23 (SE 0.1), P=0.02], sperm concentration [β -0.77 (SE 0.3), P=0.006] and total motile sperm count [β -0.91 (SE 0.3), P=0.007]. Waist circumference≥102 cm, a measure for central adiposity, was inversely associated with sperm concentration [β -0.69 (SE 0.2), P=0.001] and total motile sperm count [β-0.62 (SE 0.3), P=0.02]. All associations remained significant after adjustment for age, ethnicity, active and passive smoking, alcohol and medication use and folate status. CONCLUSIONS This study shows that in particular, sperm concentration and total motile sperm count in men of subfertile couples are detrimentally affected by a high BMI and central adiposity. The effect of weight loss on sperm quality and fertility needs further investigation.
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Affiliation(s)
- Fatima Hammiche
- Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center, Dr. Molewaterplein 50, 3000 DR Rotterdam, The Netherlands
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Shiraishi K, Matsuyama H, Takihara H. Pathophysiology of varicocele in male infertility in the era of assisted reproductive technology. Int J Urol 2012; 19:538-50. [PMID: 22417329 DOI: 10.1111/j.1442-2042.2012.02982.x] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Koji Shiraishi
- Department of Urology, Yamaguchi University School of Medicine, Sanyo-Onoda Municipal Hospital, Yamaguchi, Japan.
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Development of a multiplexed PCR-coupled liquid bead array assay for vascular endothelial growth factor (VEGF) splice variants. Clin Biochem 2012; 45:475-82. [PMID: 22330939 DOI: 10.1016/j.clinbiochem.2012.01.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 01/24/2012] [Accepted: 01/26/2012] [Indexed: 12/27/2022]
Abstract
OBJECTIVES To develop a multiplex PCR-coupled liquid bead array assay for the expression of VEGF splice variants. DESIGN AND METHODS The assay was based on the combination of multiplex PCR with liquid bead array technology, and optimized and evaluated in terms of analytical sensitivity, specificity, and reproducibility using the MCF-7 cell line. Clinical performance was evaluated in 16 pairs of fresh frozen cancerous and corresponding noncancerous adjacent tissues from NSCLC patients. RESULTS The assay is highly sensitive, reproducible and can detect specifically VEGF splice variants in clinical samples. When applied in 32 clinical samples it gave comparable results to RT-qPCR (concordance of 81%, 75%, 88% and 81% for PBGD, VEGF(121), VEGF(165), and VEGF(189) respectively). CONCLUSIONS The developed assay can simultaneously detect three VEGF splice variants with high specificity and sensitivity and can be further used to evaluate the role of each individual VEGF splice variant in molecular therapies targeted against VEGF.
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Mondéjar I, Grullón LA, García-Vázquez FA, Romar R, Coy P. Fertilization outcome could be regulated by binding of oviductal plasminogen to oocytes and by releasing of plasminogen activators during interplay between gametes. Fertil Steril 2011; 97:453-61. [PMID: 22177313 DOI: 10.1016/j.fertnstert.2011.11.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 11/20/2011] [Accepted: 11/23/2011] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To detect plasminogen and plasminogen activators (PA) in oviduct and oocytes and to clarify the role of the plasminogen/plasmin system on mammalian fertilization. DESIGN Experimental prospective study. SETTING Mammalian reproduction research laboratory. ANIMAL(S) Oviducts and ovaries from porcine and bovine females were collected at slaughterhouse. A total of 52 oviducts and 2,292 oocytes were used. Boar and bull ejaculated spermatozoa were also used. INTERVENTION(S) Plasminogen concentration in oviductal fluid (OF) through the cycle was measured. Immunolocalization of plasminogen and PAs in oocytes was carried out before and after fertilization. Porcine and bovine oocytes were in vitro fertilized, with plasminogen and plasmin added to the culture medium at different concentrations. MAIN OUTCOME MEASURE(S) Plasminogen concentration in OF. Plasminogen and PAs immunolocalization in oocytes. Penetration and monospermy rates, number of spermatozoa in the ooplasma and on the zona pellucida (ZP) after IVF. RESULT(S) Oviductal fluid contains about 92 μg/mL of plasminogen. The mature oocyte shows immunoreactivity toward plasminogen and toward PAs on its oolemma and ZP. After fertilization, plasminogen and PAs immunolabeling decreases in the oocyte, suggesting its conversion into plasmin. When exogenous plasminogen is added to the IVF medium, sperm entry into the oocyte is hampered, suggesting that the role of plasminogen activation during fertilization is to reduce the number of (or to select) penetrating spermatozoa. CONCLUSION(S) The plasminogen/plasmin system is activated during gamete interaction and regulates the sperm entry into the oocyte.
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Affiliation(s)
- Irene Mondéjar
- Department of Physiology, Faculty of Veterinary, University of Murcia, Murcia, Spain
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Reddy N, Kasukurthi KB, Mahla RS, Pawar RM, Goel S. Expression of vascular endothelial growth factor (VEGF) transcript and protein in the testis of several vertebrates, including endangered species. Theriogenology 2011; 77:608-14. [PMID: 22056013 DOI: 10.1016/j.theriogenology.2011.08.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 08/10/2011] [Accepted: 08/30/2011] [Indexed: 12/26/2022]
Abstract
Vascular endothelial growth factor (VEGF) is known to influence the testis function. To establish the role of VEGF in the testis of a variety of species, we analyzed the expression of VEGF transcript using human gene-specific primers by semiquantitative reverse transcription-polymerase chain reaction (RT-PCR) analysis in the testes of 18 vertebrates, including a few endangered species. An amplicon of 566 bp representing VEGF(165) was identified in testis of all species in this study. Sequence analysis of these amplicons revealed 84 to 96% homology to available human VEGF sequence and to the VEGF sequences of other species in GenBank. Immunohistochemical analysis revealed expression of VEGF protein, primarily in Sertoli and Leydig cells and occasionally in the germ cells of the testis sections. It can be concluded from this study that expression of VEGF transcript is conserved in the testis of several vertebrates and may have a role in the process of spermatogenesis.
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Affiliation(s)
- Niranjan Reddy
- Centre for Cellular and Molecular Biology, Council for Scientific and Industrial Research, Hyderabad, India
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Minutoli L, Antonuccio P, Squadrito F, Bitto A, Nicotina PA, Fazzari C, Polito F, Marini H, Bonvissuto G, Arena S, Morgia G, Romeo C, Caputi AP, Altavilla D. Effects of polydeoxyribonucleotide on the histological damage and the altered spermatogenesis induced by testicular ischaemia and reperfusion in rats. ACTA ACUST UNITED AC 2011; 35:133-44. [PMID: 21651579 DOI: 10.1111/j.1365-2605.2011.01194.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The effects of polydeoxyribonucleotide (PDRN), an agonist of the A2A adenosine receptors which when activated positively influences sperm activity, were tested in an experimental testicular ischaemia/reperfusion injury model. Anaesthetized male Sprague-Dawley rats were subjected to testicular torsion-induced ischaemia, followed by reperfusion (TI/R). Immediately after detorsion, randomized animals, including SHAM, received intraperitoneal injections of: (i) vehicle (1 mL/kg 0.9% NaCl solution); (ii) PDRN (8 mg/kg); (iii) DMPX (3,7-dimethyl-1-propargilxanthine, 0.1 mg/kg); or (iv) PDRN (8 mg/kg) + DMPX (0.1 mg/kg). Animals were euthanized at 1, 7 and 30 days following reperfusion. Vascular endothelial growth factor (VEGF) expression is normally associated with adenosine A2A receptor stimulation. After treatment, VEGF mRNA/protein expression quantified by qPCR and Western blot, vascular endothelial growth factor receptor-1 (VEGFR1) and endothelial nitric oxide synthase (eNOS) mRNA measured by qPCR, VEGF and VEGFR1 assessed using immunohistochemical methods, histological staining and spermatogenic activity were all analysed. Testis ischaemia-reperfusion (TI/R) injury caused increases in VEGF mRNA and protein, VEGFR1 and eNOS mRNA, histological damage and reduced spermatogenic activity. Immunostaining showed a lower expression of VEGF in germinal epithelial cells and a strong expression of VEGFR1 in Leydig cells after TI/R. PDRN administration increased significantly VEGF message/protein, VEGFR1 and eNOS message, decreased histological damage and ameliorated spermatogenic activity. PDRN might be useful in the management of testicular torsion.
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Affiliation(s)
- L Minutoli
- Section of Pharmacology, Department of Experimental and Clinical Medicine and Pharmacology, University of Messina, Messina, Italy.
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Lee RKK, Fan CC, Hwu YM, Lu CH, Lin MH, Chen YJ, Li SH. SERPINE2, an inhibitor of plasminogen activators, is highly expressed in the human endometrium during the secretory phase. Reprod Biol Endocrinol 2011; 9:38. [PMID: 21426587 PMCID: PMC3068949 DOI: 10.1186/1477-7827-9-38] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Accepted: 03/23/2011] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND SERPINE2, also known as protease nexin-1, belongs to the serine protease inhibitor (SERPIN) superfamily. It is one of the potent SERPINs that modulates the activity of plasminogen activators (PAs). PAs and their SERPIN inhibitors, such as SERPINB2 and SERPINE1, were expressed in the human endometrium and were implicated in implantation. However, expression data about SERPINE2 in the human endometrium is still unknown. Thus, we conducted an investigation to reveal the spatiotemporal and cellular expression of SERPINE2 in the human uterus during the menstrual cycle. METHODS Seven patients who underwent a hysterectomy and samples of 120 archived patients' endometrial curettage or parts of the uterus that were formalin-fixed and embedded in paraffin. Western blotting was performed to evaluate the specificity and sensitivity of the antibody. Immunohistochemistry was conducted to localize the SERPINE2 expression site. Quantitative analysis was conducted to evaluate expression levels of SERPINE2 in various sub-phases of the menstrual cycle. RESULTS The SERPINE2 protein was primarily detected in the uterine fluid during the mid- and late-secretory phases of the menstrual cycle. It was predominantly expressed in the luminal and glandular epithelium, less in the myometrium, and only dispersedly in certain stromal cells throughout the menstrual cycle. A quantitative analysis of expression levels of SERPINE2 in the glandular epithelium revealed that it was highly expressed in the endometrium during the secretory phase compared to the proliferative phase. CONCLUSIONS The SERPINE2 protein is highly expressed in the endometrium during the secretory phase, indicating that it may participate in tissue remodeling involved in implantation.
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Affiliation(s)
- Robert Kuo-Kuang Lee
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Obstetrics and Gynecology, Taipei Medical University, Taipei, Taiwan
| | - Chi-Chen Fan
- Department of Physiology, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University, Hsinchu, Taiwan
| | - Yuh-Ming Hwu
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College, Taipei, Taiwan
| | - Chung-Hao Lu
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | - Ming-Huei Lin
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College, Taipei, Taiwan
| | - Ying-Jie Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Sheng-Hsiang Li
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College, Taipei, Taiwan
- Graduate Institute of Biotechnology, National Taipei University of Technology, Taipei, Taiwan
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Minutoli L, Arena S, Bonvissuto G, Bitto A, Polito F, Irrera N, Arena F, Fragalà E, Romeo C, Nicotina PA, Fazzari C, Marini H, Implatini A, Grimaldi S, Cantone N, Di Benedetto V, Squadrito F, Altavilla D, Morgia G. Activation of adenosine A2A receptors by polydeoxyribonucleotide increases vascular endothelial growth factor and protects against testicular damage induced by experimental varicocele in rats. Fertil Steril 2011; 95:1510-3. [PMID: 20797711 DOI: 10.1016/j.fertnstert.2010.07.1047] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Revised: 06/21/2010] [Accepted: 07/05/2010] [Indexed: 12/17/2022]
Abstract
In rat experimental varicocele, polydeoxyribonucleotide (PDRN) induces vascular endothelial growth factor (VEGF) production, thereby enhancing testicular function. This may point to a new therapeutic approach in human varicocele.
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Affiliation(s)
- Letteria Minutoli
- Department of Clinical and Experimental Medicine and Pharmacology, University of Messina, Messina, Italy
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