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Growth hormone replacement improved oocyte quality in a patient with hypopituitarism: a study of follicular fluid. ANNALES D'ENDOCRINOLOGIE 2021; 82:590-596. [PMID: 34186075 DOI: 10.1016/j.ando.2021.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/10/2021] [Accepted: 05/21/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUNDː Growth hormone (GH) is known to be involved in ovarian folliculogenesis and oocyte maturation. In patients with poor ovarian response without growth hormone deficiency (GHD), adjuvant GH treatment improves in-vitro fertilization (IVF) results. Improvement of oocyte quality in IVF by GH replacement was reported in only a few patients with GHD. We report on another case with study of follicular fluid. METHODSː A 29-year-old patient with hypopituitarism was referred to our infertility center. She was undergoing hormonal replacement for hypogonadotropic hypogonadism and diabetes insipidus, and did not at first want GH replacement. Four IVF procedures were performed between 2011 and 2014. Growth hormone replacement (somatotropin 1.1mg/day) was initiated before the fourth IVF procedure and unmasked central hypothyroidism; levothyroxine (75 mg/day) was introduced. It took 10 months to reach the treatment objectives for insulin-like growth factor 1 (IGF1), free triiodothyronine (fT3) and free thyroxine (fT4). GH, IGF1 and thyroid hormones were measured in the blood and follicular fluid before and after GH and thyroid hormone replacement. Oocyte and embryo quality were also compared. RESULTSː The first 3 IVF procedures were performed without GH replacement. 62% to 100% of mature oocytes presented one or more morphologic abnormalities: diffuse cytoplasmic granularity, large perivitelline space with fragments, fragmentation of the first polar body, ovoid shape, or difficult denudation. Embryo quality was moderate to poor (grade B to D), and no pregnancy was obtained after embryo transfer. After GH replacement, hormones levels increased in follicular fluid: GH [7.68 vs. 1.39 mIU/L], IGF1 [109 vs. <25 ng/mL], fT3 [3.7 vs. 2.5 pmol/L] and fT4 [1.45 vs. 0.84 ng/mL]. Concomitantly, there was dramatic improvement in oocyte quality (no abnormal morphologies) and embryo quality (grade A), allowing an embryo transfer with successful pregnancy. CONCLUSIONSː This is the first report illustrating changes in hormonal levels in follicular fluid and the beneficial effect of GH replacement on oocyte and embryo quality during an IVF procedure in a patient with hypopituitarism. These results suggest that GH replacement is beneficial for oocyte quality in patients with GHD.
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Scheffler F, Vandecandelaere A, Soyez M, Bosquet D, Lefranc E, Copin H, Devaux A, Benkhalifa M, Cabry R, Desailloud R. Follicular GH and IGF1 Levels Are Associated With Oocyte Cohort Quality: A Pilot Study. Front Endocrinol (Lausanne) 2021; 12:793621. [PMID: 34925246 PMCID: PMC8672194 DOI: 10.3389/fendo.2021.793621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 11/15/2021] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Oocyte quality contributes to the development of an optimal embryo and thus a successful pregnancy. The objective of this study was to analyse the association between oocyte cohort quality and the follicular levels of growth hormone (GH), insulin-like growth factor 1 (IGF1), 25-hydroxy vitamin D (25OHD), thyroid-stimulating hormone (TSH), free triiodothyronine (fT3), free thyroxine (fT4) and antithyroid antibodies, as a function of intracytoplasmic sperm injection (ICSI) outcomes. MATERIAL AND METHODS We conducted a prospective comparative pilot study from January 2013 to December 2017. 59 ICSI cycles constituted an abnormal oocyte cohort (n=34 cycles, in which more than 50% of oocytes presented at least one morphological abnormality) and a normal oocyte cohort (n=25 cycles, in which 50% or less of the oocytes presented at least one morphological abnormality). GH, IGF1, 25OHD, TSH, fT3, fT4 and antithyroid antibodies were measured in follicular fluid. RESULTS The fertilisation rate was lower in the abnormal oocyte cohort (65.5% vs. 80%, respectively, p=0.012). Oocytes' proportion with at least one abnormality was 79.4% in the abnormal oocyte cohort and 29.0% in the normal oocyte cohort. The mean number of morphological abnormalities per oocyte was significantly higher in the abnormal oocyte cohort. The follicular levels of GH (4.98 vs. 2.75 mIU/L, respectively; p <0.01) and IGF1 (72.1 vs. 54.2 ng/mL, respectively; p=0.05) were higher in the normal oocyte cohort. There was no association with follicular levels of TSH, fT3, fT4, antithyroid antibodies, or 25OHD. CONCLUSION Oocyte cohort quality appears to be associated with follicular levels of GH and IGF1.
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Affiliation(s)
- Florence Scheffler
- Reproductive Medicine and Biology Department and CECOS of Picardy, Amiens University Hospital, Amiens, France
- Peritox UMR_I 01, CURS, Jules Verne University of Picardy, Amiens, France
- *Correspondence: Florence Scheffler,
| | - Albane Vandecandelaere
- Reproductive Medicine and Biology Department and CECOS of Picardy, Amiens University Hospital, Amiens, France
| | - Marion Soyez
- Endocrine and Bone Biology Department, Amiens University Hospital, Amiens, France
| | - Dorian Bosquet
- Reproductive Medicine and Biology Department and CECOS of Picardy, Amiens University Hospital, Amiens, France
- Peritox UMR_I 01, CURS, Jules Verne University of Picardy, Amiens, France
| | - Elodie Lefranc
- Reproductive Medicine and Biology Department and CECOS of Picardy, Amiens University Hospital, Amiens, France
| | - Henri Copin
- Reproductive Medicine and Biology Department and CECOS of Picardy, Amiens University Hospital, Amiens, France
| | - Aviva Devaux
- Reproductive Medicine and Biology Department and CECOS of Picardy, Amiens University Hospital, Amiens, France
- Peritox UMR_I 01, CURS, Jules Verne University of Picardy, Amiens, France
| | - Moncef Benkhalifa
- Reproductive Medicine and Biology Department and CECOS of Picardy, Amiens University Hospital, Amiens, France
- Peritox UMR_I 01, CURS, Jules Verne University of Picardy, Amiens, France
| | - Rosalie Cabry
- Reproductive Medicine and Biology Department and CECOS of Picardy, Amiens University Hospital, Amiens, France
- Peritox UMR_I 01, CURS, Jules Verne University of Picardy, Amiens, France
| | - Rachel Desailloud
- Peritox UMR_I 01, CURS, Jules Verne University of Picardy, Amiens, France
- Endocrinology, Diabetes, and Nutrition Department, Amiens University Hospital, Amiens, France
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Tetkova A, Susor A, Kubelka M, Nemcova L, Jansova D, Dvoran M, Del Llano E, Holubcova Z, Kalous J. Follicle-stimulating hormone administration affects amino acid metabolism in mammalian oocytes†. Biol Reprod 2020; 101:719-732. [PMID: 31290535 DOI: 10.1093/biolre/ioz117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/18/2019] [Accepted: 07/04/2019] [Indexed: 12/27/2022] Open
Abstract
Culture media used in assisted reproduction are commonly supplemented with gonadotropin hormones to support the nuclear and cytoplasmic maturation of in vitro matured oocytes. However, the effect of gonadotropins on protein synthesis in oocytes is yet to be fully understood. As published data have previously documented a positive in vitro effect of follicle-stimulating hormone (FSH) on cytoplasmic maturation, we exposed mouse denuded oocytes to FSH in order to evaluate the changes in global protein synthesis. We found that dose-dependent administration of FSH resulted in a decrease of methionine incorporation into de novo synthesized proteins in denuded mouse oocytes and oocytes cultured in cumulus-oocyte complexes. Similarly, FSH influenced methionine incorporation in additional mammalian species including human. Furthermore, we showed the expression of FSH-receptor protein in oocytes. We found that major translational regulators were not affected by FSH treatment; however, the amino acid uptake became impaired. We propose that the effect of FSH treatment on amino acid uptake is influenced by FSH receptor with the effect on oocyte metabolism and physiology.
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Affiliation(s)
- Anna Tetkova
- Institute of Animal Physiology and Genetics, Czech Academy of Science, Libechov, Czech Republic.,Department of Cell Biology, Faculty of Science, Charles University in Prague, Prague 2, Czech Republic
| | - Andrej Susor
- Institute of Animal Physiology and Genetics, Czech Academy of Science, Libechov, Czech Republic
| | - Michal Kubelka
- Institute of Animal Physiology and Genetics, Czech Academy of Science, Libechov, Czech Republic
| | - Lucie Nemcova
- Institute of Animal Physiology and Genetics, Czech Academy of Science, Libechov, Czech Republic
| | - Denisa Jansova
- Institute of Animal Physiology and Genetics, Czech Academy of Science, Libechov, Czech Republic
| | - Michal Dvoran
- Institute of Animal Physiology and Genetics, Czech Academy of Science, Libechov, Czech Republic.,Department of Cell Biology, Faculty of Science, Charles University in Prague, Prague 2, Czech Republic
| | - Edgar Del Llano
- Institute of Animal Physiology and Genetics, Czech Academy of Science, Libechov, Czech Republic.,Department of Cell Biology, Faculty of Science, Charles University in Prague, Prague 2, Czech Republic
| | - Zuzana Holubcova
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Reprofit International, Clinic of Reproductive Medicine, Brno, Czech Republic
| | - Jaroslav Kalous
- Institute of Animal Physiology and Genetics, Czech Academy of Science, Libechov, Czech Republic
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Di Paolo V, Mangialardo C, Zacà C, Barberi M, Sereni E, Borini A, Centanni M, Coticchio G, Verga-Falzacappa C, Canipari R. Thyroid hormones T3 and T4 regulate human luteinized granulosa cells, counteracting apoptosis and promoting cell survival. J Endocrinol Invest 2020; 43:821-831. [PMID: 31894536 DOI: 10.1007/s40618-019-01169-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 12/19/2019] [Indexed: 01/10/2023]
Abstract
PURPOSE Fine and balanced regulation of cell proliferation and apoptosis are key to achieve ovarian follicle development from the primordial to the preovulatory stage and therefore assure female reproductive function. While gonadotropins are the major and most recognized regulators of follicle cell growth and function, other factors, both systemic and local, play equally important roles. This work is aimed at evaluating the effects of thyroid hormones (THs) on human granulosa luteinized (hGL) viability. METHODS Human GL cells derived from assisted reproduction treatments were exposed to T3 or T4. Cell viability was evaluated by MTT assay. Apoptosis was evaluated by the TUNEL assay and active caspase-3 staining. StAR, CYP19A1,Caspase-3, P53 and BAX mRNA were evaluated by real-time PCR. LC3-I/-II, AKT and pAKT were evaluated by western blot. RESULTS T3 and T4 promoted cell viability in a dose-dependent modality and modulate StAR and CYP19A1 expression. T3 and to a lesser extent T4 mitigated cell death induced by serum starvation by inhibition of caspase-3 activity and expression of P53 and BAX; and attenuate cell death experimentally induced by C2-ceramide. Cell death derived from starvation appeared to be involved in autophagic processes, as the levels of autophagic markers (LC3-II/LC3-I ratio) decreased when starved cells were exposed to T3 and T4. This effect was associated with an increase in pAkt levels. CONCLUSION From the present study, THs emerge as potent anti-apoptotic agents in hGL cells. This effect is achieved by inhibiting the apoptosis signalling pathway of BAX and caspase-3, while maintaining active the PI3K/AKT pathway.
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Affiliation(s)
- V Di Paolo
- DAHFMO, Unit of Histology and Medical Embryology, Sapienza, University of Rome, Via A. Scarpa 14, 00161, Rome, Italy
- Department of Haematology/Oncology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - C Mangialardo
- Department of Medical‑Surgical Sciences and Biotechnologies, Sapienza, University of Rome, Rome, Italy
| | - C Zacà
- 9.Baby, Family and Fertility Center, Via Dante 15, 40125, Bologna, Italy
| | - M Barberi
- 9.Baby, Family and Fertility Center, Via Dante 15, 40125, Bologna, Italy
| | - E Sereni
- 9.Baby, Family and Fertility Center, Via Dante 15, 40125, Bologna, Italy
| | - A Borini
- 9.Baby, Family and Fertility Center, Via Dante 15, 40125, Bologna, Italy
| | - M Centanni
- Department of Medical‑Surgical Sciences and Biotechnologies, Sapienza, University of Rome, Rome, Italy
| | - G Coticchio
- 9.Baby, Family and Fertility Center, Via Dante 15, 40125, Bologna, Italy
| | - C Verga-Falzacappa
- Department of Medical‑Surgical Sciences and Biotechnologies, Sapienza, University of Rome, Rome, Italy
| | - R Canipari
- DAHFMO, Unit of Histology and Medical Embryology, Sapienza, University of Rome, Via A. Scarpa 14, 00161, Rome, Italy.
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Çalışkan E, Ergin RN, Öztekin DC, Kars B, Çakır S, Sofuoğlu K. Subclinical hypothyroidism: Is it important in intracytoplasmic sperm injection cycles? Turk J Obstet Gynecol 2017; 14:100-105. [PMID: 28913145 PMCID: PMC5558409 DOI: 10.4274/tjod.48108] [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: 01/10/2017] [Accepted: 05/11/2017] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE To compare intracytoplasmic sperm injection (ICSI) outcomes of women with subclinical hypothyroidism with those of euthyroid women. MATERIALS AND METHODS A retrospective case-control study was conducted. Out of 2529 ICSI cycles evaluated, 41 women with hypothyroidism, 28 women with hyperthyroidism, and 128 women with subclinical hyperthyroidism were excluded, and 2336 cycles were analyzed. Women were identified as having subclinical hypothyroidism (case group, n=105) in the presence of a thyroid-stimulating hormone level >4.5 mU/L and normal free T4 and compared with euthyroid controls (n=2231). RESULTS The mean age, body mass index, day 3 follicle-stimulating hormone level, and antral follicle count of the study patients were similar to the control group (p>0.5). The cycle cancellation rate of the study group was similar to the control group (13.3% vs. 7.6%, p=0.1). The clinical pregnancy rate was 21.2% in the study group, which was significantly lower than the 35.8% in the control group (p=0.04). The take-home baby rate was also significantly lower in the study group compared with the control groups (13.5% vs. 31.4% respectively, p=0.01). CONCLUSION Both the clinical pregnancy rate and the take-home baby rate is lower in women with subclinical hypothyroidism at the time of ICSI cycle.
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Affiliation(s)
- Eray Çalışkan
- Bahçeşehir University Faculty of Medicine, Department of Obstetrics and Gynecology, İstanbul, Turkey
| | - Rahime Nida Ergin
- Bahçeşehir University Faculty of Medicine, Department of Obstetrics and Gynecology, İstanbul, Turkey
| | - Deniz Can Öztekin
- Ege Maternity and Gynecology Training and Research Hospital, Clinic of Obstetrics and Gynecology, İzmir, Turkey
| | - Bülent Kars
- University of Health Sciences, Kartal Dr. Lütfi Kırdar Training and Research Hospital, Clinic of Obstetrics and Gynecology, İstanbul, Turkey
| | - Seda Çakır
- University of Health Sciences, Zeynep Kamil Maternity and Children's Health Training and Research Hospital, Clinic of Obstetrics and Gynecology, İstanbul, Turkey
| | - Kenan Sofuoğlu
- University of Health Sciences, Zeynep Kamil Maternity and Children's Health Training and Research Hospital, Clinic of Obstetrics and Gynecology, İstanbul, Turkey
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Lei M, Cai L, Li H, Chen Z, Shi Z. Transcriptome sequencing analysis of porcine granulosa cells treated with an anti-inhibin antibody. Reprod Biol 2017; 17:79-88. [DOI: 10.1016/j.repbio.2017.01.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 12/29/2016] [Accepted: 01/02/2017] [Indexed: 12/23/2022]
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Cai L, Sun A, Li H, Tsinkgou A, Yu J, Ying S, Chen Z, Shi Z. Molecular mechanisms of enhancing porcine granulosa cell proliferation and function by treatment in vitro with anti-inhibin alpha subunit antibody. Reprod Biol Endocrinol 2015; 13:26. [PMID: 25889399 PMCID: PMC4395973 DOI: 10.1186/s12958-015-0022-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 03/24/2015] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND This study was conducted to clarify the effect of the inhibiting action of inhibin on porcine granulosa cell proliferation and function, and to investigate the underlying intracellular regulatory molecular mechanisms. METHODS Porcine granulosa cells were cultured in vitro, and were treated with an anti-inhibin alpha subunit antibody, with or without co-treatment of follicle-stimulating hormone (FSH) in the culture medium. RESULTS Treatment with anti-inhibin alpha subunit antibody led to a significant increase in estradiol (E2) secretion and cell proliferation. Anti-inhibin alpha subunit antibody worked synergistically with FSH at low concentrations (25 microg/mL) to stimulate E2 secretion, but attenuated FSH action at high concentrations (50 microg/mL). Immunoneutralization of inhibin bioactivity increased FOXL2, Smad3, and PKA phosphorylation, and mRNA expression of the transcription factors CEBP and c-FOS. The expression of genes encoding gonadotropin receptors, FSHR and LHR, and of those involved in steroidogenesis, as well as IGFs and IGFBPs, the cell cycle progression factors cyclinD1 and cyclinD2, and the anti-apoptosis and anti-atresia factors Bcl2, TIMP, and ADAMTS were upregulated following anti-inhibin alpha-subunit treatment. Treatment with anti-inhibin alpha subunit down regulated expression of the pro-apoptotic gene encoding caspase3. Although expression of the pro-angiogenesis genes FN1, FGF2, and VEGF was upregulated, expression of the angiogenesis-inhibiting factor THBS1 was downregulated following anti-inhibin alpha subunit treatment. CONCLUSIONS These results suggest that immunoneutralization of inhibin bioactivity, through augmentation of the activin and gonadotropin receptor signaling pathways and regulation of gene expression, permits the development of healthy and viable granulosa cells. These molecular mechanisms help to explain the enhanced ovarian follicular development observed following inhibin immunization in animal models.
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Affiliation(s)
- Liuping Cai
- Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Aidong Sun
- Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Hui Li
- Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Anastasia Tsinkgou
- Department of Life Science, Xijiao-Liverpool University, Suzhou, 215123, China.
| | - Jianning Yu
- Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Shijia Ying
- Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Zhe Chen
- Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Zhendan Shi
- Laboratory of Animal Breeding and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
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Saha SK, Ghosh P, Konar A, Bhattacharya S, Roy SS. Differential expression of procollagen lysine 2-oxoglutarate 5-deoxygenase and matrix metalloproteinase isoforms in hypothyroid rat ovary and disintegration of extracellular matrix. Endocrinology 2005; 146:2963-75. [PMID: 15817667 DOI: 10.1210/en.2004-1440] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Hypothyroid-induced reproductive malfunction in both the sexes is a common phenomenon of global concern. In an attempt to characterize the differentially expressed genes that might be responsible for these disorders, we have identified a number of clones in hypothyroid rat ovary by subtractive hybridization. One such clone is procollagen lysyl hydroxylase2 (Plod-2), the key enzyme for the first step of collagen biosynthetic pathway, which was down-regulated in hypothyroid condition. We have also demonstrated the reduced expression of other isoforms of Plods, namely Plod-1 and -3 in hypothyroid rat ovary. The current studies are the first of their kind to report that thyroid hormone regulates the Plod gene in rat ovary. Moreover, we have shown the up-regulation of matrix-degrading enzyme(s), matrix metalloproteinase(s) in the hypothyroid rat ovary, whereas the tissue-inhibitory metalloproteinase is down-regulated. Finally, the results of the present studies indicate that in hypothyroid condition, collagen biosynthesis in ovary seems to be disturbed with concomitant enhancement in collagen degradation, resulting in disintegration of overall ovarian structure.
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Affiliation(s)
- Samir Kumar Saha
- Molecular Endocrinology Laboratory, Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata 700032, India
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Ben-Shlomo I, Goldman S, Shalev E. Regulation of matrix metalloproteinase-9 (MMP-9), tissue inhibitor of MMP, and progesterone secretion in luteinized granulosa cells from normally ovulating women with polycystic ovary disease. Fertil Steril 2003; 79 Suppl 1:694-701. [PMID: 12620479 DOI: 10.1016/s0015-0282(02)04814-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To investigate the regulation of MMP-9, TIMP-1, and progesterone via three signal transduction pathways in luteinized granulosa cells from normal ovulatory and PCOD women. DESIGN In vitro study. SETTING Laboratory for Research in Reproductive Sciences, Department of Obstetrics and Gynecology, Ha'Emek Hospital, Afula, Israel. PATIENT(S) Ten normal ovulatory and 10 women with polycystic ovary disease (PCOD) treated in an assisted reproduction program. INTERVENTION(S) Cultured cells were exposed to phorbol 12-myristate 13-acetate (TPA), acting via protein kinase C (PKC), to epidermal growth factor (EGF), acting via protein tyrosine kinase (PTK), and to forskolin, acting via protein kinase A (PKA). MAIN OUTCOME MEASURE(S) Secretion of MMP-9, TIMP-1, and progesterone. RESULT(S) Phorbol 12-myristate 13-acetate elicited an increase in MMP-9 and TIMP-1 secretion in both groups and apparently did not affect progesterone secretion. Epidermal growth factor did not change significantly neither MMP-9 nor TIMP-1 secretion but dose dependently decreased MMP-9-TIMP-1 ratio and increased progesterone secretion in the PCOD group. Forskolin inhibited MMP-9 activity and increased TIMP-1 and progesterone secretion in both groups. Progesterone production was inversely related to the ratio of MMP-9-TIMP-1 regardless of cell origin. CONCLUSION(S) In this preliminary study, similar and divergent patterns have emerged in the regulation of MMP-9 and TIMP-1 in human luteinized granulosa cells. Repressing MMP-9-TIMP-1 ratio may have an important modulatory effect on progesterone secretion.
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Affiliation(s)
- Izhar Ben-Shlomo
- Ha'Emek Medical Center, Department of Obstetrics and Gynecology, Afula, Israel
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