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Chang WS, Lin PH, Li CJ, Chern CU, Chen YC, Lin LT, Tsui KH. Additional single dose GnRH agonist during luteal phase support may improve live birth rate in GnRHa-HRT frozen-thawed embryo transfer cycle: a retrospective cohort study. BMC Pregnancy Childbirth 2023; 23:174. [PMID: 36918869 PMCID: PMC10012576 DOI: 10.1186/s12884-023-05491-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/02/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND GnRH agonist (GnRHa) has been reported to have direct effects and functional roles in the endometrium and embryos. Several meta-analyses have shown that GnRHa administration in the luteal phase improved the live birth rate or pregnancy rate in both fresh and frozen embryo transfer (FET) cycles. The aim of this study was to investigate whether luteal GnRHa administration could also improve in vitro fertilization (IVF) outcomes in patients undergoing hormone replacement therapy (HRT) cycles with GnRHa suppression. METHODS The retrospective cohort study included a total of 350 patients undergoing GnRHa-HRT FET cycles. The study group included 179 patients receiving an additional single dose of GnRHa in the luteal phase following embryo transfer. A total of 171 patients in the control group did not receive luteal GnRHa. The baseline and cycle characteristics and reproductive outcomes were compared between the two groups. RESULTS Baseline and cycle characteristics were similar between the two groups, except lower AMH levels were found in the luteal GnRHa group than in the control group. The luteal GnRHa group had a significantly higher ongoing pregnancy rate and live birth rate than the control group. The multivariate analysis revealed that luteal GnRHa administration was positively associated with ongoing pregnancy (OR 2.04, 95% CI 1.20-3.47, P = 0.008) and live birth (OR 2.03, 95% CI 1.20-3.45, P = 0.009). When the subgroup of patients with recurrent implantation failure was analyzed, the multivariate analysis also showed that luteal GnRHa administration had beneficial effects on ongoing pregnancy (OR 4.55, 95% CI 1.69-12.30, P = 0.003) and live birth (OR 4.30, 95% CI 1.59-11.65, P = 0.004). CONCLUSIONS Our data suggest that the addition of one luteal dose of GnRHa may improve the live birth rate in patients undergoing the GnRHa-HRT protocol.
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Affiliation(s)
- Wei-Shan Chang
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Rd., Zuoying Dist, Kaohsiung City, 81362, Taiwan.,Department of Obstetrics and Gynecology, Kaohsiung Armed Forces General Hospital, Kaohsiung City, Taiwan
| | - Pei-Hsuan Lin
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Rd., Zuoying Dist, Kaohsiung City, 81362, Taiwan
| | - Chia-Jung Li
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Rd., Zuoying Dist, Kaohsiung City, 81362, Taiwan.,Institute of Biopharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung City, Taiwan
| | - Chyi-Uei Chern
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Rd., Zuoying Dist, Kaohsiung City, 81362, Taiwan
| | - Yu-Chen Chen
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Rd., Zuoying Dist, Kaohsiung City, 81362, Taiwan
| | - Li-Te Lin
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Rd., Zuoying Dist, Kaohsiung City, 81362, Taiwan. .,Institute of Biopharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung City, Taiwan. .,Department of Obstetrics and Gynecology, School of Medicine, National Yang-Ming University, Taipei City, Taiwan. .,Department of Biological Science, National Sun Yat-sen University, Kaohsiung City, Taiwan.
| | - Kuan-Hao Tsui
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Rd., Zuoying Dist, Kaohsiung City, 81362, Taiwan. .,Institute of Biopharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung City, Taiwan. .,Department of Obstetrics and Gynecology, School of Medicine, National Yang-Ming University, Taipei City, Taiwan. .,Department of Biological Science, National Sun Yat-sen University, Kaohsiung City, Taiwan.
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Short-term resveratrol treatment restored the quality of oocytes in aging mice. Aging (Albany NY) 2022; 14:5628-5640. [PMID: 35802632 PMCID: PMC9365568 DOI: 10.18632/aging.204157] [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: 10/12/2021] [Accepted: 06/23/2022] [Indexed: 11/25/2022]
Abstract
The quality of oocytes declines by aging, resulting in their low competences for fertility. Here, resveratrol treatment showed increases in the rates of implantation and live offspring as well as decreases in the abortion rate as short as one week after treatment, although the number of ovulated oocytes and the rates of fertilization and blastocyst formation were not changed following resveratrol treatment. Resveratrol treatment did not cause abnormalities mouse estrous cycles and body weights. No abnormality was detected in both fetuses and placentas after 22 weeks of resveratrol treatment and the fetuses had normal fertility. Positive correlations were found between serum resveratrol levels and pregnancy and live offspring rates as well as ovarian expression levels of Sirt1, Sirt3, Sirt4, Sirt5, and Sirt7. The mitochondrial membrane potential and ATP content but not copy number of mitochondrial DNA in oocytes was increased in aging mice with resveratrol treatment. In conclusion, we demonstrated the restoration of oocyte quality in aging mice in addition to the prevention of their quality decline during aging by restoring mitochondrial functions by resveratrol treatment without adverse effects in the animals and their offspring.
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Leppänen R, Tinkanen H, Huhtala H, Ahinko K. Single-administered GnRH agonist as luteal phase support in insemination cycles: a randomized controlled trial. Gynecol Endocrinol 2022; 38:438-442. [PMID: 35323085 DOI: 10.1080/09513590.2022.2054984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE To find out whether a single-administered GnRH agonist improves the live birth rate in real-life patients undergoing intrauterine insemination (IUI) cycles. STUDY DESIGN A prospective, randomized controlled trial in a public single tertiary center in Tampere University Hospital, Finland. Altogether 251 IUI cycles in 163 patients were randomized to triptorelin and a control group between January 2017 and April 2019. In the triptorelin group, the participants had a single administration of a subcutaneous GnRH agonist triptorelin 0.1 mg at the time of implantation. In the control group, there was no luteal phase support. The primary outcome measure was the live birth rate (LBR). The secondary outcome measures were clinical pregnancy rate (CPR) and miscarriage rate. RESULTS Overall, the live birth rate was lower in the triptorelin group compared to the control group (7.9 vs. 12.1%; p = .297). The clinical pregnancy rates were 12.6 and 13.7%, respectively. There were 2.4% miscarriages in the triptorelin group and no miscarriages in the control group. Ovarian stimulation with letrozole was associated with lower LBR among the triptorelin group, in comparison to the control group (0 vs. 14.7%, p = .020). In contrast, when gonadotrophin was added to the letrozole, LBR was almost doubled compared to the control group (15.9 vs. 8.3%, p = .341). CONCLUSION A single administration of GnRH agonist in the luteal phase does not improve LBR in IUI cycles.
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Affiliation(s)
- Riikka Leppänen
- Department of Obstetrics and Gynaecology, Tampere University Hospital, Tampere, Finland
| | - Helena Tinkanen
- Department of Obstetrics and Gynaecology, Tampere University Hospital, Tampere, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Katja Ahinko
- Department of Obstetrics and Gynaecology, Tampere University Hospital, Tampere, Finland
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Wu H, Xu X, Ma C, Zhou Y, Pei S, Geng H, He Y, Xu Q, Xu Y, He X, Zhou P, Wei Z, Xu X, Cao Y. No significant long-term complications from inadvertent exposure to gonadotropin-releasing hormone agonist during early pregnancy in mothers and offspring: a retrospective analysis. Reprod Biol Endocrinol 2021; 19:46. [PMID: 33743741 PMCID: PMC7980339 DOI: 10.1186/s12958-021-00732-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/15/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Administration of gonadotropin-releasing hormone agonist (GnRH-a) in the luteal phase is commonly used for pituitary suppression during in vitro fertilisation (IVF). There is an ineluctable risk of inadvertent exposure of spontaneous pregnancy to GnRH-a. However, little is known about the pregnancy complications and repregnancy outcomes of the affected women and the neurodevelopmental outcomes of the GnRH-a-exposed children. METHODS Retrospective analysis was used to determine obstetric and repregnancy outcomes after natural conception in 114 women who naturally conceived while receiving GnRH-a during their early pregnancy over the past 17 years. The GnRH-a-exposed children were evaluated to determine their neonatal characteristics and long-term neurodevelopmental outcomes. The outcomes were compared to those of relevant age-matched control groups. RESULTS Sixty-five women had 66 live births. The neonatal health outcomes and the incidence of maternal complications were similar in the GnRH-a-exposed and control groups. Thirty-one GnRH-a-exposed children, aged 2-8 years, were available for investigation of neurodevelopment. Except for one case of autism spectrum disorder, the full-scale intelligence quotient score was within the normal range and similar to that of the control group. Most mothers with successful pregnancies and about one-third of the women who had spontaneous abortions were subsequently able to conceive naturally again. IVF is recommended for repregnancy in women who have experienced ectopic pregnancies. CONCLUSIONS Accidental exposure to GnRH-a in early pregnancy might be safe. Reproductive treatment suggestions for repregnancy should be made with consideration of the outcomes of the previously GnRH-a-exposed spontaneous pregnancy.
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Affiliation(s)
- Huan Wu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, 230032, China
| | - Xiaoyan Xu
- The Children's Neurorehabilitation Center, Pediatric Department, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
| | - Cong Ma
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, 230032, China
| | - Yiran Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
| | - Shanai Pei
- The Children's Neurorehabilitation Center, Pediatric Department, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
| | - Hao Geng
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
| | - Ye He
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
| | - Qianhua Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
| | - Yuping Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
| | - Xiaojin He
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
| | - Ping Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
| | - Zhaolian Wei
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China
| | - Xiaofeng Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China.
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China.
- Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, 230032, China.
| | - Yunxia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, China.
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, China.
- Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, 230032, China.
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Kiyonari H, Kaneko M, Abe T, Shioi G, Aizawa S, Furuta Y, Fujimori T. Dynamic organelle localization and cytoskeletal reorganization during preimplantation mouse embryo development revealed by live imaging of genetically encoded fluorescent fusion proteins. Genesis 2019; 57:e23277. [PMID: 30597711 PMCID: PMC6590263 DOI: 10.1002/dvg.23277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/25/2018] [Accepted: 12/26/2018] [Indexed: 01/29/2023]
Abstract
Live imaging is one of the most powerful technologies for studying the behaviors of cells and molecules in living embryos. Previously, we established a series of reporter mouse lines in which specific organelles are labeled with various fluorescent proteins. In this study, we examined the localizations of fluorescent signals during preimplantation development of these mouse lines, as well as a newly established one, by time‐lapse imaging. Each organelle was specifically marked with fluorescent fusion proteins; fluorescent signals were clearly visible during the whole period of time‐lapse observation, and the expression of the reporters did not affect embryonic development. We found that some organelles dramatically change their sub‐cellular distributions during preimplantation stages. In addition, by crossing mouse lines carrying reporters of two distinct colors, we could simultaneously visualize two types of organelles. These results confirm that our reporter mouse lines can be valuable genetic tools for live imaging of embryonic development.
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Affiliation(s)
- Hiroshi Kiyonari
- Laboratory for Animal Resource Development, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.,Laboratory for Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Mari Kaneko
- Laboratory for Animal Resource Development, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.,Laboratory for Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Takaya Abe
- Laboratory for Animal Resource Development, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.,Laboratory for Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Go Shioi
- Laboratory for Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Shinichi Aizawa
- Laboratory for Animal Resource Development, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Yasuhide Furuta
- Laboratory for Animal Resource Development, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.,Laboratory for Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Toshihiko Fujimori
- Laboratory for Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.,Division of Embryology, National Institute for Basic Biology (NIBB), Okazaki, Japan
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Mid-luteal phase gonadotropin-releasing hormone agonist support in frozen-thawed embryo transfers during artificial cycles: A prospective interventional pilot study. J Gynecol Obstet Hum Reprod 2018; 47:391-395. [PMID: 29684629 DOI: 10.1016/j.jogoh.2018.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/15/2018] [Accepted: 04/17/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To assess the effect of an additional single mid-luteal dose of gonadotropin-releasing hormone agonist (GnRHa) on pregnancy and perinatal outcomes in hormonally substituted frozen embryo transfer (FET) cycles. STUDY DESIGN A prospective interventional pilot study. Women scheduled for FET were randomly selected to receive standard hormonal replacement therapy (HRT) for endometrial preparation or HRT with a single additional subcutaneous dose of 0.1mg triptorelin at the time of implantation. If FET was not followed by a pregnancy, women with surplus embryos were scheduled for a single second attempt in a crossover setting. Altogether, 144 FET cycles were analyzed. The carryover effect was tested using a logistic regression model. Logistic regression analysis for binary variables was applied with generalized estimation equation extension to account for dependence among repeated treatments. RESULTS The live birth rate (LBR) was 9.8 percentage points higher and the miscarriage rate 14.7 percentage points lower in the intervention group (n=72) than in the control group (n=72), but the differences did not reach statistical significance. Implantation and clinical pregnancy rates were comparable between the groups. No congenital malformations or differences in the median birth weight of newborns were detected. CONCLUSIONS Observable but statistically insignificant difference in LBR and miscarriage rate favoring luteal phase GnRHa support was detected. Further, no malformations or effect on fetal growth were observed. Larger studies are needed to confirm the results of this pilot study.
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Atwood CS, Vadakkadath Meethal S. The spatiotemporal hormonal orchestration of human folliculogenesis, early embryogenesis and blastocyst implantation. Mol Cell Endocrinol 2016; 430:33-48. [PMID: 27045358 DOI: 10.1016/j.mce.2016.03.039] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 03/30/2016] [Indexed: 11/18/2022]
Abstract
The early reproductive events starting with folliculogenesis and ending with blastocyst implantation into the uterine endometrium are regulated by a complex interplay among endocrine, paracrine and autocrine factors. This review examines the spatiotemporal integration of these maternal and embryonic signals that are required for successful reproduction. In coordination with hypothalamic-pituitary-gonadal (HPG) hormones, an intraovarian HPG-like axis regulates folliculogenesis, follicular quiescence, ovulation, follicular atresia, and corpus luteal functions. Upon conception and passage of the zygote through the fallopian tube, the contribution of maternal hormones in the form of paracrine secretions from the endosalpinx to embryonic development declines, with autocrine and paracrine signaling becoming increasingly important as instructional signals for the differentiation of the early zygote/morula into a blastocyst. These maternal and embryonic signals include activin and gonadotropin-releasing hormone 1 (GnRH1) that are crucial for the synthesis and secretion of the 'pregnancy' hormone human chorionic gonadotropin (hCG). hCG in turn signals pre-implantation embryonic cell division and sex steroid production required for stem cell differentiation, and subsequent blastulation, gastrulation, cavitation and blastocyst formation. Upon reaching the uterus, blastocyst hatching occurs under the influence of decreased activin signaling, while the attachment and invasion of the trophoblast into the endometrium appears to be driven by a decrease in activin signaling, and by increased GnRH1 and hCG signaling that allows for tissue remodeling and the controlled invasion of the blastocyst into the uterine endometrium. This review demonstrates the importance of integrative endocrine, paracrine, and autocrine signaling for successful human reproduction.
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Affiliation(s)
- Craig S Atwood
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53705, USA; Geriatric Research, Education and Clinical Center, Veterans Administration Hospital, Madison, WI 53705, USA; School of Exercise, Biomedical and Health Sciences, Edith Cowan University, Joondalup, 6027 WA, Australia.
| | - Sivan Vadakkadath Meethal
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI 53705, USA; Department of Neurological Surgery, University of Wisconsin-Madison School of Medicine and Public Health, WI 53792, USA
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8
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Barnea E, Almogi-Hazan O, Or R, Mueller M, Ria F, Weiss L, Paidas M. Immune regulatory and neuroprotective properties of preimplantation factor: From newborn to adult. Pharmacol Ther 2015; 156:10-25. [DOI: 10.1016/j.pharmthera.2015.10.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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9
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Gogce M, Benchaib M, Hadj S, Bordes A, du Menildot P, Lornage J, Salle B. Administration d’agonistes de la GnRH (Gonadotrophin Releasing Hormone) en phase lutéale des protocoles substitutifs de transferts d’embryons congelés : étude prospective randomisée. ACTA ACUST UNITED AC 2015; 43:728-34. [DOI: 10.1016/j.gyobfe.2015.07.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 07/07/2015] [Indexed: 11/27/2022]
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10
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Pirard C, Loumaye E, Laurent P, Wyns C. Contribution to More Patient-Friendly ART Treatment: Efficacy of Continuous Low-Dose GnRH Agonist as the Only Luteal Support-Results of a Prospective, Randomized, Comparative Study. Int J Endocrinol 2015; 2015:727569. [PMID: 25945092 PMCID: PMC4402188 DOI: 10.1155/2015/727569] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 03/18/2015] [Indexed: 11/18/2022] Open
Abstract
Background. The aim of this pilot study was to evaluate intranasal buserelin for luteal phase support and compare its efficacy with standard vaginal progesterone in IVF/ICSI antagonist cycles. Methods. This is a prospective, randomized, open, parallel group study. Forty patients underwent ovarian hyperstimulation with human menopausal gonadotropin under pituitary inhibition with gonadotropin-releasing hormone antagonist, while ovulation trigger and luteal support were achieved using intranasal GnRH agonist (group A). Twenty patients had their cycle downregulated with buserelin and stimulated with hMG, while ovulation trigger was achieved using 10,000 IU human chorionic gonadotropin with luteal support by intravaginal progesterone (group B). Results. No difference was observed in estradiol levels. Progesterone levels on day 5 were significantly lower in group A. However, significantly higher levels of luteinizing hormone were observed in group A during the entire luteal phase. Pregnancy rates (31.4% versus 22.2%), implantation rates (22% versus 15.4%), and clinical pregnancy rates (25.7% versus 16.7%) were not statistically different between groups, although a trend towards higher rates was observed in group A. No luteal phase lasting less than 10 days was recorded in either group. Conclusion. Intranasal administration of buserelin is effective for providing luteal phase support in IVF/ICSI antagonist protocols.
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Affiliation(s)
- Céline Pirard
- Department of Gynecology-Andrology, Cliniques Universitaires Saint-Luc, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, 1200 Brussels, Belgium
| | | | - Pascale Laurent
- Department of Gynecology-Andrology, Cliniques Universitaires Saint-Luc, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Christine Wyns
- Department of Gynecology-Andrology, Cliniques Universitaires Saint-Luc, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, 1200 Brussels, Belgium
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11
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Barnea ER, Lubman DM, Liu YH, Absalon-Medina V, Hayrabedyan S, Todorova K, Gilbert RO, Guingab J, Barder TJ. Insight into PreImplantation Factor (PIF*) mechanism for embryo protection and development: target oxidative stress and protein misfolding (PDI and HSP) through essential RIKP [corrected] binding site. PLoS One 2014; 9:e100263. [PMID: 24983882 PMCID: PMC4077574 DOI: 10.1371/journal.pone.0100263] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Accepted: 05/24/2014] [Indexed: 11/18/2022] Open
Abstract
Background Endogenous PIF, upon which embryo development is dependent, is secreted only by viable mammalian embryos, and absent in non-viable ones. Synthetic PIF (sPIF) administration promotes singly cultured embryos development and protects against their demise caused by embryo-toxic serum. To identify and characterize critical sPIF-embryo protein interactions novel biochemical and bio-analytical methods were specifically devised. Methods FITC-PIF uptake/binding by cultured murine and equine embryos was examined and compared with scrambled FITC-PIF (control). Murine embryo (d10) lysates were fractionated by reversed-phase HPLC, fractions printed onto microarray slides and probed with Biotin-PIF, IDE and Kv1.3 antibodies, using fluorescence detection. sPIF-based affinity column was developed to extract and identify PIF-protein interactions from lysates using peptide mass spectrometry (LC/MS/MS). In silico evaluation examined binding of PIF to critical targets, using mutation analysis. Results PIF directly targets viable cultured embryos as compared with control peptide, which failed to bind. Multistep Biotin-PIF targets were confirmed by single-step PIF-affinity column based isolation. PIF binds protein disulfide isomerases a prolyl-4-hydroxylase β-subunit, (PDI, PDIA4, PDIA6-like) containing the antioxidant thioredoxin domain. PIF also binds protective heat shock proteins (70&90), co-chaperone, BAG-3. Remarkably, PIF targets a common RIPK site in PDI and HSP proteins. Further, single PIF amino acid mutation significantly reduced peptide-protein target bonding. PIF binds promiscuous tubulins, neuron backbones and ACTA-1,2 visceral proteins. Significant anti-IDE, while limited anti-Kv1.3b antibody-binding to Biotin-PIF positive lysates HPLC fractions were documented. Conclusion Collectively, data identifies PIF shared targets on PDI and HSP in the embryo. Such are known to play a critical role in protecting against oxidative stress and protein misfolding. PIF-affinity-column is a novel utilitarian method for small molecule targets direct identification. Data reveals and completes the understanding of mechanisms involved in PIF-induced autotrophic and protective effects on the embryo.
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Affiliation(s)
- Eytan R. Barnea
- Research & Development, SIEP The Society for the Investigation of Early Pregnancy, Cherry Hill, New Jersey, United States of America
- Research & Development, BioIncept, LLC, Cherry Hill, New Jersey, United States of America
- Department of Obstetrics, Gynecology and Reproduction, UMDNJ-Robert Wood Johnson Medical School, Camden, New Jersey, United States of America
- * E-mail:
| | - David M. Lubman
- Department Surgery, University of Michigan Medical Center, Ann Arbor, Michigan, United States of America
| | - Yan-Hui Liu
- Department Surgery, University of Michigan Medical Center, Ann Arbor, Michigan, United States of America
| | - Victor Absalon-Medina
- Reproductive Medicine, Cornell University, College of Veterinary Medicine, Ithaca, New York, United States of America
| | - Soren Hayrabedyan
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Krassimira Todorova
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Robert O. Gilbert
- Reproductive Medicine, Cornell University, College of Veterinary Medicine, Ithaca, New York, United States of America
| | - Joy Guingab
- Chemical Biology and Proteomics, Banyan Biomarkers, Alachua, Florida, United States of America
| | - Timothy J. Barder
- Research & Development, Eprogen, Downers Grove, Illinois, United States of America
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Okamoto N, Kawamura K, Kawamura N, Nishijima C, Ishizuka B, Suzuki N, Hirata K. Effects of Maternal Aging on Expression of Sirtuin Genes in Ovulated Oocyte and Cumulus Cells. ACTA ACUST UNITED AC 2013. [DOI: 10.1274/jmor.30.24] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Preimplantation factor negates embryo toxicity and promotes embryo development in culture. Reprod Biomed Online 2011; 23:517-24. [DOI: 10.1016/j.rbmo.2011.06.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 06/10/2011] [Accepted: 06/15/2011] [Indexed: 01/24/2023]
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14
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Heidari F, Gharagozloo F, Vojgani M, Farrokhi N, Vajhi A, Masoudifard M, Mirtorabi M, Nayeri Fasaei B. The effect of a GnRH antagonist pre-treatment, in the superovulation of goats. Small Rumin Res 2010. [DOI: 10.1016/j.smallrumres.2010.05.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Oliveira JBA, Baruffi R, Petersen CG, Mauri AL, Cavagna M, Franco JG. Administration of single-dose GnRH agonist in the luteal phase in ICSI cycles: a meta-analysis. Reprod Biol Endocrinol 2010; 8:107. [PMID: 20825643 PMCID: PMC2942885 DOI: 10.1186/1477-7827-8-107] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Accepted: 09/08/2010] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The effects of gonadotrophin-releasing hormone agonist (GnRH-a) administered in the luteal phase remains controversial. This meta-analysis aimed to evaluate the effect of the administration of a single-dose of GnRH-a in the luteal phase on ICSI clinical outcomes. METHODS The research strategy included the online search of databases. Only randomized studies were included. The outcomes analyzed were implantation rate, clinical pregnancy rate (CPR) per transfer and ongoing pregnancy rate. The fixed effects model was used for odds ratio. In all trials, a single dose of GnRH-a was administered at day 5/6 after ICSI procedures. RESULTS All cycles presented statistically significantly higher rates of implantation (P<0.0001), CPR per transfer (P=0.006) and ongoing pregnancy (P=0.02) in the group that received luteal-phase GnRH-a administration than in the control group (without luteal-phase-GnRH-a administration). When meta-analysis was carried out only in trials that had used long GnRH-a ovarian stimulation protocol, CPR per transfer (P=0.06) and ongoing pregnancy (P=0.23) rates were not significantly different between the groups, but implantation rate was significant higher (P=0.02) in the group that received luteal-phase-GnRH-a administration. On the other hand, the results from trials that had used GnRH antagonist multi-dose ovarian stimulation protocol showed statistically significantly higher implantation (P=0.0002), CPR per transfer (P=0.04) and ongoing pregnancy rate (P=0.04) in the luteal-phase-GnRH-a administration group. The majority of the results presented heterogeneity. CONCLUSIONS These findings demonstrate that the luteal-phase single-dose GnRH-a administration can increase implantation rate in all cycles and CPR per transfer and ongoing pregnancy rate in cycles with GnRH antagonist ovarian stimulation protocol. Nevertheless, by considering the heterogeneity between the trials, it seems premature to recommend the use of GnRH-a in the luteal phase. Additional randomized controlled trials are necessary before evidence-based recommendations can be provided.
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Affiliation(s)
- João Batista A Oliveira
- Department of Gynecology and Obstetrics, Botucatu Medical School São Paulo State University - UNESP Sao Paulo, Brazil
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Sao Paulo, Brazil
- Paulista Center for Diagnosis Research and Training, Ribeirao Preto, Sao Paulo, Brazil
| | - Ricardo Baruffi
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Sao Paulo, Brazil
- Paulista Center for Diagnosis Research and Training, Ribeirao Preto, Sao Paulo, Brazil
| | - Cláudia G Petersen
- Department of Gynecology and Obstetrics, Botucatu Medical School São Paulo State University - UNESP Sao Paulo, Brazil
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Sao Paulo, Brazil
- Paulista Center for Diagnosis Research and Training, Ribeirao Preto, Sao Paulo, Brazil
| | - Ana L Mauri
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Sao Paulo, Brazil
- Paulista Center for Diagnosis Research and Training, Ribeirao Preto, Sao Paulo, Brazil
| | - Mario Cavagna
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Sao Paulo, Brazil
| | - José G Franco
- Department of Gynecology and Obstetrics, Botucatu Medical School São Paulo State University - UNESP Sao Paulo, Brazil
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Sao Paulo, Brazil
- Paulista Center for Diagnosis Research and Training, Ribeirao Preto, Sao Paulo, Brazil
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16
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Kawamura N, Kawamura K, Manabe M, Tanaka T. Inhibition of brain-derived neurotrophic factor/tyrosine kinase B signaling suppresses choriocarcinoma cell growth. Endocrinology 2010; 151:3006-14. [PMID: 20463055 DOI: 10.1210/en.2009-1378] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) signals through its receptor tyrosine kinase (Trk)B to regulate the development trophoblast cells during peri- and postimplantation periods. Possible involvement of this signaling system in malignant human trophoblastic cell growth has not been investigated. Here, we found the expression of BDNF and neurtropin-4/5 together with TrkB in human trophoblastic choriocarcinoma cells. Treatment of cultured choriocarcinoma cells with a soluble TrkB ectodomain or a Trk receptor inhibitor K252a suppressed cell proliferation and increased apoptosis associated by the disruption of mitochondrial functions, whereas an inactive plasma membrane nonpermeable K252b was ineffective. Studies using these specific inhibitors also indicated the importance of the phosphatidylinositol 3-kinase and ERK pathways in mediating BDNF actions. Based on PCR array analyses to identify changes in expression profiles of cell cycle- and apoptosis-related genes in cultured choriocarcinoma cells, we found that suppression of endogenous TrkB signaling led to decreases in key proproliferation cell cycle genes and increases in two inhibitory cell cycle genes together with the up-regulation of several proapoptotic genes. In vivo studies in athymic nude mice bearing choriocarcinoma cell tumors further demonstrated that treatment with K252a, but not K252b, suppressed tumor growth accompanied by decreased cell proliferation, reduced levels of a tumor marker, human chorionic gonadotropin-beta, and increased levels of apoptosis and caspase-3/7 activities. Thus, autocrine signaling of the BDNF/TrkB system is important for human choriocarcinoma cell growth, and inhibition of BDNF/TrkB signaling in these cells could provide a novel therapy for patients with choriocarcinoma.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Brain-Derived Neurotrophic Factor/genetics
- Brain-Derived Neurotrophic Factor/metabolism
- Carbazoles/pharmacology
- Carbazoles/therapeutic use
- Caspase 3/genetics
- Caspase 3/metabolism
- Caspase 7/genetics
- Caspase 7/metabolism
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Choriocarcinoma/drug therapy
- Chorionic Gonadotropin, beta Subunit, Human/genetics
- Chorionic Gonadotropin, beta Subunit, Human/metabolism
- Enzyme-Linked Immunosorbent Assay
- Humans
- Indole Alkaloids/pharmacology
- Indole Alkaloids/therapeutic use
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Nerve Growth Factors/genetics
- Nerve Growth Factors/metabolism
- Receptor, trkB/antagonists & inhibitors
- Receptor, trkB/genetics
- Receptor, trkB/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Nanami Kawamura
- Department of Obstetrics and Gynecology, Akita University School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
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17
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Matsuura K, Hayashi N, Kuroda Y, Takiue C, Hirata R, Takenami M, Aoi Y, Yoshioka N, Habara T, Mukaida T, Naruse K. Improved development of mouse and human embryos using a tilting embryo culture system. Reprod Biomed Online 2010; 20:358-64. [DOI: 10.1016/j.rbmo.2009.12.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2009] [Revised: 06/08/2009] [Accepted: 11/11/2009] [Indexed: 10/20/2022]
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18
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Kawamura K, Kawamura N, Sato W, Fukuda J, Kumagai J, Tanaka T. Brain-derived neurotrophic factor promotes implantation and subsequent placental development by stimulating trophoblast cell growth and survival. Endocrinology 2009; 150:3774-82. [PMID: 19372195 DOI: 10.1210/en.2009-0213] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Successful implantation of the blastocyst and subsequent placental development is essential for reproduction. Expression of brain-derived neurotrophic factor (BDNF) and neurotrophin-4/5, together with their receptor, tyrosine kinase B (TrkB), in trophectoderm cells of blastocyst suggests their potential roles in implantation and placental development. Here we demonstrated that treatment with BDNF promoted blastocyst outgrowth, but not adhesion, in vitro and increased levels of the cell invasion marker matrix metalloproteinase-9 in cultured blastocysts through the phosphatidylinositol 3-kinase pathway. After implantation, BDNF and neurotrophin-4/5 proteins as well as TrkB were expressed in trophoblast cells and placentas during different stages of pregnancy. Both TrkB and its ligands were also expressed in decidual cells. Treatment of cultured trophoblast cells with the TrkB ectodomain, or a Trk receptor inhibitor K252a, suppressed cell growth as reflected by decreased proliferation and increased apoptosis, whereas an inactive plasma membrane nonpermeable K252b was ineffective. Studies using the specific inhibitors also indicated the importance of the phosphatidylinositol 3-kinase/Akt pathway in mediating the action of TrkB ligands. In vivo studies in pregnant mice further demonstrated that treatment with K252a, but not K252b, suppressed placental development accompanied by increases in trophoblast cell apoptosis and decreases in placental labyrinth zone at midgestation. In vivo K252a treatment also decreased fetal weight at late gestational stages. Our findings suggested important autocrine/paracrine roles of the BDNF/TrkB signaling system during implantation, subsequent placental development, and fetal growth by increasing trophoblast cell growth and survival.
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Affiliation(s)
- Kazuhiro Kawamura
- Department of Obstetrics and Gynecology, Akita University School of Medicine, Akita 010-8543 Japan.
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19
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Klemmt PAB, Liu F, Carver JG, Jones C, Brosi D, Adamson J, Mardon HJ, McVeigh E. Effects of gonadotrophin releasing hormone analogues on human endometrial stromal cells and embryo invasion in vitro. Hum Reprod 2009; 24:2187-92. [PMID: 19520710 DOI: 10.1093/humrep/dep181] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Gonadotrophin releasing hormone (GnRH) analogues are widely used in IVF programmes as a method of suppressing the luteinizing hormone (LH) surge prior to ovarian stimulation, but their roles outside the pituitary remain relatively unknown. A 2002 Cochrane review (Al-Inany et al. Gonadotrophin-releasing hormone antagonists for assisted conception. Cochrane Database Syst Rev 2006;3:CD001750) described lower pregnancy rates in women administered with GnRH antagonist, compared with those using an agonist, as part of an IVF programme, despite the fact that GnRH antagonist is a more effective repressor of LH. This study aimed to analyse the in-vitro effects of GnRH analogues on the decidualizing endometrium, blastocyst invasion and GnRH receptor expression in fertile women. METHODS We analysed the in-vitro decidualization capacity of endometrial stromal cells, derived from fertile women during the implantation window, in the presence of GnRH analogues. The influence of GnRH analogues on GnRH receptor expression and blastocyst invasion was assessed by in-vitro assays of biomedical marker secretion, immunoblots and blastocyst attachment to the stromal extracellular matrix. RESULTS We demonstrate that, at the concentrations and time periods used, GnRH analogues did not significantly influence the extent of decidualization of endometrial stromal cells. In addition, no adverse effect of GnRH analogues was seen on human blastocyst invasion. CONCLUSIONS We suggest that GnRH analogues affect neither the capacity of the endometrium to support invasion nor the invasive potential of the blastocyst in the early stages of implantation.
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Affiliation(s)
- Petra A B Klemmt
- Nuffield Department of Obstetrics and Gynaecology, Level 3, The Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, UK
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20
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Manno M, Tomei F, Cervi M, Favretti C, Adamo V. Comparison of protocols efficacy in poor responders: differences in oocytes/embryos competence with different protocols, a retrospective study. Fertil Steril 2008; 91:1431-3. [PMID: 18706554 DOI: 10.1016/j.fertnstert.2008.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2008] [Revised: 06/01/2008] [Accepted: 06/02/2008] [Indexed: 11/24/2022]
Abstract
At present, there is no agreement on poor ovarian response definition, and no definitive evidence that this prognosis can be changed by a specific protocol. Our data suggest that a flare-up protocol with a depot gonadotropin-releasing hormone (GnRH) agonist formulation gives higher total pregnancy and implantation rates than a GnRH antagonist, possibly by improving oocyte/embryo competence.
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Affiliation(s)
- Massimo Manno
- Maternal-Pediatric Department, Pordenone Hospital, Pathophysiology Unit of Human Reproduction and Sperm Bank, Pordenone, Italy.
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21
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Millar RP, Pawson AJ, Morgan K, Rissman EF, Lu ZL. Diversity of actions of GnRHs mediated by ligand-induced selective signaling. Front Neuroendocrinol 2008; 29:17-35. [PMID: 17976709 PMCID: PMC2667102 DOI: 10.1016/j.yfrne.2007.06.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2007] [Revised: 06/22/2007] [Accepted: 06/26/2007] [Indexed: 12/27/2022]
Abstract
Geoffrey Wingfield Harris' demonstration of hypothalamic hormones regulating pituitary function led to their structural identification and therapeutic utilization in a wide spectrum of diseases. Amongst these, Gonadotropin Releasing Hormone (GnRH) and its analogs are widely employed in modulating gonadotropin and sex steroid secretion to treat infertility, precocious puberty and many hormone-dependent diseases including endometriosis, uterine fibroids and prostatic cancer. While these effects are all mediated via modulation of the pituitary gonadotrope GnRH receptor and the G(q) signaling pathway, it has become increasingly apparent that GnRH regulates many extrapituitary cells in the nervous system and periphery. This review focuses on two such examples, namely GnRH analog effects on reproductive behaviors and GnRH analog effects on the inhibition of cancer cell growth. For both effects the relative activities of a range of GnRH analogs is distinctly different from their effects on the pituitary gonadotrope and different signaling pathways are utilized. As there is only a single functional GnRH receptor type in man we have proposed that the GnRH receptor can assume different conformations which have different selectivity for GnRH analogs and intracellular signaling proteins complexes. This ligand-induced selective-signaling recruits certain pathways while by-passing others and has implications in developing more selective GnRH analogs for highly specific therapeutic intervention.
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Affiliation(s)
- Robert P Millar
- MRC Human Reproductive Sciences Unit, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
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22
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Kawamura K, Ye Y, Kawamura N, Jing L, Groenen P, Gelpke MS, Rauch R, Hsueh AJW, Tanaka T. Completion of Meiosis I of preovulatory oocytes and facilitation of preimplantation embryo development by glial cell line-derived neurotrophic factor. Dev Biol 2007; 315:189-202. [PMID: 18234170 DOI: 10.1016/j.ydbio.2007.12.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Revised: 12/05/2007] [Accepted: 12/19/2007] [Indexed: 01/15/2023]
Abstract
Optimal maturation of oocytes and successful development of preimplantation embryos is essential for reproduction. We performed DNA microarray analyses of ovarian transcripts and identified glial cell line-derived neurotrophic factor (GDNF) secreted by cumulus, granulosa, and theca cells as an ovarian factor stimulated by the preovulatory LH/hCG surge. Treatment of cumulus-oocyte complexes with GDNF enhanced first polar body extrusion with increase in cyclin B1 synthesis and the GDNF actions are likely mediated by its receptor GDNF family receptor-alpha1 (GFRA1) and a co-receptor ret proto-oncogene (Ret), both expressed in oocytes. However, treatment with GDNF did not affect germinal vesicle breakdown and cytoplasmic maturation of oocytes. During the preimplantation stages, GDNF was expressed in pregnant oviducts and uteri, whereas GFRA1 and Ret were expressed in embryos throughout early development with an increase after the early blastocyst stage. In blastocysts, both GDNF and GFRA1 were exclusively localized in trophectoderm cells, whereas Ret was detected in both cell lineages. Treatment with GDNF promoted the development of two-cell-stage embryos into blastocysts showing increased cell proliferation and decreased apoptosis mainly in trophectoderm cells. Our findings suggest potential paracrine roles of GDNF in the promotion of completion of meiosis I and the development of early embryos.
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Affiliation(s)
- Kazuhiro Kawamura
- Department of Obstetrics and Gynecology, Akita University School of Medicine, Akita 010-8543, Japan.
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23
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Kawamura K, Kawamura N, Fukuda J, Kumagai J, Hsueh AJW, Tanaka T. Regulation of preimplantation embryo development by brain-derived neurotrophic factor. Dev Biol 2007; 311:147-58. [PMID: 17880937 DOI: 10.1016/j.ydbio.2007.08.026] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2007] [Revised: 07/17/2007] [Accepted: 08/09/2007] [Indexed: 10/22/2022]
Abstract
Hormonal factors secreted by embryos and reproductive tracts are important for successful development of preimplantation embryos. We found expression of brain-derived neurotrophic factor (BDNF) and neurotrophin-4/5 (NT-4/5) transcripts at its highest levels in the blastocyst stages. The transcripts for their receptor, TrkB, were detectable throughout the early embryonic stages with an increase after the early blastocyst stage. Both BDNF and TrkB are expressed in trophectoderm cells, whereas ligand-binding studies indicated specific binding of BDNF to trophectoderm cells. Furthermore, BDNF and NT-4/5 were produced in pregnant oviducts and uteri. Treatment with BDNF promoted the development of two-cell-stage embryos into blastocysts showing increased proliferation and decreased apoptosis. The effects of BDNF were blocked by the TrkB ectodomain or a Trk receptor inhibitor, K252a. Studies using specific inhibitors demonstrated the roles of the PI3K, but not the ERK, pathway in mediating BDNF actions. Under high-density embryo cultures, treatment with the TrkB ectodomain or K252a alone also inhibited embryonic development and survival, suggesting potential autocrine actions of BDNF produced by the embryo. In vivo experiments further demonstrated that K252a treatment suppressed early embryo development by inhibiting blastocyst cell numbers, and increasing blastocyst apoptosis. Our findings suggested that BDNF signaling plays important paracrine roles during blastocyst development by promoting the development of preimplantation embryos.
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Affiliation(s)
- Kazuhiro Kawamura
- Department of Obstetrics and Gynecology, Akita University School of Medicine, Akita, 010-8543, Japan.
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24
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Mbikay M, Croissandeau G, Sirois F, Anini Y, Mayne J, Seidah NG, Chrétien M. A targeted deletion/insertion in the mouse Pcsk1 locus is associated with homozygous embryo preimplantation lethality, mutant allele preferential transmission and heterozygous female susceptibility to dietary fat. Dev Biol 2007; 306:584-98. [PMID: 17490633 DOI: 10.1016/j.ydbio.2007.03.523] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2006] [Revised: 03/02/2007] [Accepted: 03/27/2007] [Indexed: 01/08/2023]
Abstract
Proprotein convertase 1 (PC1) is a neuroendocrine proteinase involved in the proteolytic activation of precursors to hormones and neuropeptides. To determine the physiological importance of PC1, we produced a mutant mouse from embryonic stem cells in which its locus (Pcsk1) had been inactivated by homologous recombination. The inactivating mutation consisted of a 32.7-kb internal deletion and a 1.8 kb insertion of the bacterial neomycin resistance gene (neo) under the mouse phosphoglycerate kinase 1 protein (PGKneo). Intercross of Pcsk1(+/-) mice produced no Pcsk1(-/-) offspring or blastocysts; in addition, more than 80% of the offspring were Pcsk1(+/-). These observations suggested that the mutation caused preimplantation lethality of homozygous embryos and preferential transmission of the mutant allele. Interestingly, RT-PCR analysis on RNA from endocrine tissues from Pcsk1(+/-) mice revealed the presence of aberrant transcripts specifying the N-terminal half of the PC1 propeptide fused to neo gene product. Mass spectrometric profiles of proopiomelanocortin-derived peptides in the anterior pituitary were similar between Pcsk1(+/-) and Pcsk1(+/+) mice, but significantly different between male and female mice of the same genotype. Relative to their wild-type counterparts, female mutant mice exhibited stunted growth under a low fat diet, and catch-up growth under a high-fat diet. The complex phenotype exhibited by this Pcsk1 mutant mouse model may be due to PC1 deficiency aggravated by expression of aberrant gene products from the mutant allele.
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Affiliation(s)
- Majambu Mbikay
- Ottawa Health Research Institute and The Ottawa Hospital, 725 Parkdale Avenue, Ottawa, Ontario, Canada.
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25
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Kawamura K, Kawamura N, Kumagai J, Fukuda J, Tanaka T. Tumor necrosis factor regulation of apoptosis in mouse preimplantation embryos and its antagonism by transforming growth factor alpha/phosphatidylionsitol 3-kinase signaling system. Biol Reprod 2006; 76:611-8. [PMID: 17182889 DOI: 10.1095/biolreprod.106.058008] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Survival and apoptosis of cells in preimplantation embryos are fundamental for successful pregnancy. Relevant to these processes, tumor necrosis factor (TNF) and transforming growth factor alpha (TGFA) are produced by mammalian oviducts and uteri. In early embryos, TNF induces apoptosis, whereas TGFA could act as a survival factor. Here we investigated the TNF regulation of apoptosis in early mouse embryos and its antagonism by TGFA. TNF receptor superfamily, member 1a mRNA was detectable throughout early embryonic stages, with an increase after the early blastocyst stage, whereas the expression of TNF receptor superfamily, member 1b transcripts were detected only at the expanded blastocyst stage. Although pregnant uteri produced TNF, physiologic levels were low during the preimplantation period. Treatment with TNF inhibited the development of two-cell stage embryos to blastocysts showing decreased proliferation and increased apoptosis both in vitro and in vivo. These detrimental effects of TNF on early embryo development and survival were blocked by a neutralizing anti-TNF antibody. In addition to the death receptor-mediated pathway, TNF-induced apoptosis was further mediated by disruption of mitochondrial functions, characterized by release of cytochrome c and activation of caspase 9. The proapoptotic effects of TNF in blastocysts were counteracted by cotreatment with TGFA. The antagonistic effect of TGFA on TNF-induced apoptosis was blocked by phosphatidylionsitol 3-kinase (PI3K) inhibitors. The present findings demonstrate the stage-selective susceptibility to the apoptosis-inducing effect of TNF in mouse preimplantation embryos and that the TGFA/PI3K signaling system has an important role in the control of TNF-induced apoptosis in blastocysts.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Blastocyst/drug effects
- Blastocyst/metabolism
- Caspase Inhibitors
- Cytochromes c/metabolism
- Embryo Culture Techniques
- Embryonic Development/drug effects
- Female
- Gene Expression Regulation, Developmental
- Mice
- Mice, Inbred Strains
- Mitochondria/drug effects
- Phosphatidylinositol 3-Kinases/metabolism
- Phosphatidylinositol 3-Kinases/physiology
- Pregnancy
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- Receptors, Tumor Necrosis Factor, Type II/genetics
- Receptors, Tumor Necrosis Factor, Type II/metabolism
- Signal Transduction/drug effects
- Transforming Growth Factor alpha/pharmacology
- Tumor Necrosis Factor Inhibitors
- Tumor Necrosis Factors/genetics
- Tumor Necrosis Factors/metabolism
- Tumor Necrosis Factors/pharmacology
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Affiliation(s)
- Kazuhiro Kawamura
- Department of Obstetrics and Gynecology, Akita University School of Medicine, Akita, 010-8543 Japan.
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26
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Luo S, Mao C, Lee B, Lee AS. GRP78/BiP is required for cell proliferation and protecting the inner cell mass from apoptosis during early mouse embryonic development. Mol Cell Biol 2006; 26:5688-97. [PMID: 16847323 PMCID: PMC1592753 DOI: 10.1128/mcb.00779-06] [Citation(s) in RCA: 358] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
GRP78, also known as BiP, is a central regulator of endoplasmic reticulum (ER) homeostasis due to its multiple functional roles in protein folding, ER calcium binding, and controlling of the activation of transmembrane ER stress sensors. ER stress induction of GRP78/BiP represents a major prosurvival arm of the unfolded protein response (UPR). However, the physiological role of GRP78 in development is not known. Using a transgenic approach, we discovered that the Grp78 promoter is activated in both the trophectoderm and inner cell mass (ICM) of embryos at embryonic day 3.5 via a mechanism requiring the ER stress elements. To reveal the function of the GRP78 in vivo, we created a tri-loxP Grp78 mutant allele, which was further crossed with EIIA-cre to create a knockout allele. The Grp78+/- mice, which express 50% of the wild-type level of the GRP78 protein, are viable. Interestingly, the heterozygous Grp78 cells up-regulate the ER proteins GRP94 and protein disulfide isomerase at both the transcript and protein levels, while other UPR targets such as CHOP and XBP-1 are not affected. Further studies revealed that mouse embryonic fibroblasts from Grp78+/- mice are capable of responding to ER stress. However, Grp78-/- embryos that are completely devoid of GRP78 lead to peri-implantation lethality. These embryos do not hatch from the zona pellucida in vitro, fail to grow in culture, and exhibit proliferation defects and a massive increase in apoptosis in the ICM, which is the precursor of embryonic stem cells. These findings provide the first evidence that GRP78 is essential for embryonic cell growth and pluripotent cell survival.
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Affiliation(s)
- Shengzhan Luo
- Department of Biochemistry and Molecular Biology and the USC/Norris Comprehensive Cancer Center, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90089-9176, USA
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27
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Bukulmez O, Rehman KS, Langley M, Carr BR, Nackley AC, Doody KM, Doody KJ. Precycle administration of GnRH antagonist and microdose HCG decreases clinical pregnancy rates without affecting embryo quality and blastulation. Reprod Biomed Online 2006; 13:465-75. [PMID: 17007662 DOI: 10.1016/s1472-6483(10)60632-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The outcome of a novel protocol utilizing precycle gonadotrophin-releasing hormone (GnRH) antagonist administration and LH activity support with microdose recombinant human chorionic gonadotrophin (HCG) was compared to GnRH agonist long protocol used in patients undergoing their first ICSI (n=707) or IVF (n=571) cycles, which had resulted in one or two blastocyst transfers. In GnRH antagonist cycles, cetrorelix acetate (3 mg) was administered s.c. 4 days before FSH stimulation and a repeat dose was given when the lead follicular diameter was 13-14 mm. LH support was provided by recombinant HCG (2.5 microg). Embryo progression and blastulation were evaluated using embryo progression indices and blastocyst quality scores. The tested protocol demonstrated reduced implantation and clinical pregnancy rates as compared with GnRH agonist long protocol, although the embryo progression and blastulation parameters and blastocyst quality were comparable among the groups. Logistic regression models further supported the significant negative impact of GnRH antagonist/microdose HCG protocol on clinical pregnancy rates in both ICSI and IVF patients. Assisted reproduction cycles with fresh blastocyst transfers utilizing precycle GnRH antagonist administration and microdose HCG support resulted in lower implantation and clinical pregnancy rates as compared with GnRH agonist cycles, although the embryo progression and blastulation parameters were comparable.
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28
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Enomoto M, Utsumi M, Park MK. Gonadotropin-releasing hormone induces actin cytoskeleton remodeling and affects cell migration in a cell-type-specific manner in TSU-Pr1 and DU145 cells. Endocrinology 2006; 147:530-42. [PMID: 16195410 DOI: 10.1210/en.2005-0460] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
GnRH was first identified as the hypothalamic decapeptide that promotes gonadotropin release from pituitary gonadotropes. Thereafter, direct stimulatory and inhibitory effects of GnRH on cell proliferation were demonstrated in a number of types of primary cultured cells and established cell lines. Recently, the effects of GnRH on cell attachment, cytoskeleton remodeling, and cell migration have also been reported. Thus, the effects of GnRH on various cell activities are of great interest among researchers who study the actions of GnRH. In this study, we demonstrated that GnRH induces actin cytoskeleton remodeling and affects cell migration using two human prostatic carcinoma cell lines, TSU-Pr1 and DU145. In TSU-Pr1, GnRH-I and -II induced the filopodia formation of the cells and promoted cell migration, whereas in DU145, GnRH-I and -II induced the formation of the cells with stress fiber and inhibited cell migration. In our previous studies, we reported the stimulatory and inhibitory effects of GnRH on the cell proliferation of TSU-Pr1 and DU145 cells. This study provides the first evidence for the effects of GnRH on actin cytoskeleton remodeling and cell migration of cells in which cell proliferation was affected by GnRH at the same time. Moreover, we also demonstrated that the same human GnRH receptor subtype, human type I GnRH receptor, is essential for the effects of GnRH-I and -II on actin cytoskeleton remodeling and cell migration in both TSU-Pr1 and DU145 cells using the technique of gene knock-down by RNA interference.
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Affiliation(s)
- Masahiro Enomoto
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
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