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Tseng PW, Lin CJ, Tsao YH, Kuo WL, Chen HC, Dufour S, Wu GC, Chang CF. The effect of gonadal hormones on the gene expression of brain-pituitary in protandrous black porgy, Acanthopagrus schlegelii. Gen Comp Endocrinol 2024; 351:114482. [PMID: 38432348 DOI: 10.1016/j.ygcen.2024.114482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/03/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
In black porgy (Acanthopagrus schlegelii), the brain-pituitary-testis (Gnrh-Gths-Dmrt1) axis plays a vital role in male fate determination and maintenance, and then inhibiting female development in further (puberty). However, the feedback of gonadal hormones on regulating brain signaling remains unclear. In this study, we conducted short-term sex steroid treatment and surgery of gonadectomy to evaluate the feedback regulation between the gonads and the brain. The qPCR results show that male phase had the highest gths transcripts; treatment with estradiol-17β (E2) or 17α-methyltestosterone (MT) resulted in the increased pituitary lhb transcripts. After surgery, apart from gnrh1, there is no difference in brain signaling genes between gonadectomy and sham fish. In the diencephalon/mesencephalon transcriptome, de novo assembly generated 283,528 unigenes; however, only 443 (0.16%) genes showed differentially expressed between sham and gonadectomy fish. In the present study, we found that exogenous sex steroids affect the gths transcription; this feedback control is related to the gonadal stage. Furthermore, gonadectomy may not affect gene expression of brain signaling (Gnrh-Gths axis). Our results support the communication between ovotestis and brain signaling (Gnrh-Gths-testicular Dmrt1) for the male fate.
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Affiliation(s)
- Peng-Wei Tseng
- Doctoral Degree Program in Marine Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; Doctoral Degree Program in Marine Biotechnology, Academia Sinica, Taipei 115, Taiwan
| | - Chien-Ju Lin
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Yuan-Han Tsao
- Department of Aquaculture, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Wei-Lun Kuo
- Department of Aquaculture, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Hsin-Chih Chen
- Department of Aquaculture, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Sylvie Dufour
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 202, Taiwan; Biology of Aquatic Organisms and Ecosystems (BOREA), Muséum National d'Histoire Naturelle, Sorbonne Université, CNRS, IRD, Paris, France
| | - Guan-Chung Wu
- Department of Aquaculture, National Taiwan Ocean University, Keelung 202, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 202, Taiwan.
| | - Ching-Fong Chang
- Department of Aquaculture, National Taiwan Ocean University, Keelung 202, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 202, Taiwan.
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Byun JH, Hyeon JY, Hettiarachchi SA, Udagawa S, Mahardini A, Kim JM, Hur SP, Takemura A. Effects of dopamine and melatonin treatment on the expression of the genes associated with artificially induced sexual maturation in Japanese eel, Anguilla japonica. J Exp Zool A Ecol Integr Physiol 2024; 341:389-399. [PMID: 38334250 DOI: 10.1002/jez.2788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/14/2024] [Accepted: 01/18/2024] [Indexed: 02/10/2024]
Abstract
Japanese eel (Anguilla japonica) is a commercially important fish species in Asia. Understanding factors like photoperiod, temperature, and lunar cycles is crucial for successful aquaculture and managing its reproduction. Melatonin and dopamine (DA) are essential for regulating reproduction in vertebrates, including fish. This study investigated the effects of melatonin and DA on the reproductive system of mature male Japanese eels to better understand reproductive regulation in fish. To clarify the effects of these hormones on sexual maturation in eels, a critical stage in the reproductive process, sexual maturation was induced by injecting human chorionic gonadotropin, which stimulates the production of sex hormones. To check the effect of melatonin and DA on sexual maturation, DA, melatonin, and DA + domperidone were intraperitoneally injected into fish from each group (six per treatment) at a dose of 1 mg/kg body weight. The fish were then examined using quantitative RT-PCR by comparing the messenger RNA level of reproduction-related genes (gonadotropin releasing hormone 1; gnrh1, gonadotropin releasing hormone 2; gnrh2, follicle stimulating hormone; fshβ, luteinizing hormone; lhβ and DA receptor 2b; d2b), involved in the gonadotropic axis in eels, to those that received a control injection. The results indicate significant differences in the expression levels of gnrh1, gnrh2 and d2b in the brain and d2b, fshβ, lhβ in the pituitary at different stages of sexual maturation. Melatonin appears to enhance the production of sex gonadotropins, whereas DA inhibits them. These findings suggest an interaction between melatonin and DA in regulating reproduction in Japanese eels.
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Affiliation(s)
- Jun-Hwan Byun
- Department of Fisheries Biology, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Ji-Yeon Hyeon
- Division of Polar Life Science, Korea Polar Research Institute, Incheon, South Korea
| | | | - Shingo Udagawa
- Department of Co-Creation Management, Organization for Research Promotion, University of the Ryukyus, Okinawa, Japan
| | - Angka Mahardini
- Department of Marine Science, Faculty of Science, Diponegoro University, Semarang, Indonesia
| | - Jong-Myoung Kim
- Department of Fisheries Biology, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Sung-Pyo Hur
- Department of Marine Life Science, Jeju National University, Jeju, South Korea
| | - Akihiro Takemura
- Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Okinawa, Japan
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Chen Z, You Q, Wang J, Dong Z, Wang W, Yang Y, Ma X, Li C, Lu W. The functional study of a novel MKRN3 missense mutation associated with familial central precocious puberty. Am J Med Genet A 2024; 194:e63460. [PMID: 38054352 DOI: 10.1002/ajmg.a.63460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 10/16/2023] [Indexed: 12/07/2023]
Abstract
Central precocious puberty (CPP) refers to a syndrome of early puberty initiation with a characteristic increase in the release of gonadotropin-releasing hormone (GnRH); therefore, it is also called GnRH-related precocious puberty. About a quarter of idiopathic central precocious puberty (ICPP) may be familial. Studies suggest that mutations of makorin ring finger protein 3 (MKRN3) can cause familial central precocious puberty (FCPP). In this report, we describe a Chinese female patient carrying a novel MKRN3 variant (c.980G>A/p.Arg327His) and presenting the CPP phenotype. This novel variant attenuated its own ubiquitination, degradation, and inhibition on the transcriptional and translational activity of GNRH1, which was verified through functional tests. We can consider this variant as a loss-of-function mutation, which subsides the inhibition of GnRH1-related signaling and gives rise to GnRH-related precocious puberty.
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Affiliation(s)
- Ziwei Chen
- Department of Pediatrics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Qing You
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Junqi Wang
- Department of Pediatrics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Zhiya Dong
- Department of Pediatrics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Wei Wang
- Department of Pediatrics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Yuanyan Yang
- Department of Pediatrics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyu Ma
- Department of Pediatrics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Chuanyin Li
- Cancer Center, Shanghai Tenth People's Hospital, School of Medicine Tongji University, Shanghai, China
| | - Wenli Lu
- Department of Pediatrics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
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Sukhan ZP, Hossen S, Cho Y, Lee WK, Kho KH. Molecular and structural analysis of Hdh-MIRP3 and its impact on reproductive regulation in female Pacific abalone, Haliotis discus hannai. Int J Biol Macromol 2024; 263:130352. [PMID: 38403211 DOI: 10.1016/j.ijbiomac.2024.130352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
Molluscan insulin-related peptides (MIRP) play a crucial role in various biological processes, including reproduction and larval development in mollusk species. To investigate the involvement of MIRP in the ovarian development of Pacific abalone (Haliotis discus hannai), the Hdh-MIRP3 was cloned from cerebral ganglion (CG). Hdh-MIRP3 cDNA was 993 bp long, encoded a 13.22 kDa peptide, comprising 118 amino acids. Fluorescence in situ hybridization confirmed the localization of Hdh-MIRP3 in the CG and ovary. Molecular docking revealed that Hdh-MIRP3 binds to the N-terminal region of Hdh-IRP-R. Tissue expression analysis showed the highest Hdh-MIRP3 expression in the CG, followed by ovarian tissue. Hdh-MIRP3 expression was significantly upregulated in the CG and ovary during the ripe stage of seasonal ovarian development and in effective accumulative temperature conditioned abalone. Furthermore, siRNA silencing of Hdh-MIRP3 significantly downregulated the expression of four reproduction-related genes, including Hdh-GnRH, Hdh-GnRH-R, Hdh-IRP-R, and Hdh-VTG in both the CG and ovary, and Hdh-MIRP3 as well. These results indicate that Hdh-MIRP3 acts as a regulator of ovarian development in Pacific abalone. Additionally, expression analysis indicated that Hdh-MIRP3 plays a role in embryonic and larval development. Overall, the present findings elucidate the role of Hdh-MIRP3 in reproductive development in female Pacific abalone.
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Affiliation(s)
- Zahid Parvez Sukhan
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea
| | - Shaharior Hossen
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea
| | - Yusin Cho
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea
| | - Won-Kyo Lee
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea
| | - Kang Hee Kho
- Department of Fisheries Science, Chonnam National University, Yeosu, South Korea.
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Hasunuma I. Central regulation of reproduction in amphibians. J Exp Zool A Ecol Integr Physiol 2024; 341:219-229. [PMID: 38084833 DOI: 10.1002/jez.2769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 02/27/2024]
Abstract
This review article includes a literature review of synteny analysis of the amphibian gonadotropin-releasing hormone (GnRH) genes, the distribution of GnRH 1 and GnRH2 neurons in the central nervous system of amphibians, the function and regulation of hypophysiotropic GnRH1, and the function of GnRH1 in amphibian reproductive behaviors. It is generally accepted that GnRH is the key regulator of the hypothalamic-pituitary-gonadal axis. Three independent GnRH genes, GnRH1, GnRH2, and GnRH3, have been identified in vertebrates. Previous genome synteny analyses suggest that there are likely just two genes, gnrh1 and gnrh2, in amphibians. In three groups of amphibians: Anura, Urodela, and Gymnophiona, the distributions of GnRH1 and GnRH2 neurons in the central nervous system have also been previously reported. Moreover, these neuronal networks were determined to be structurally independent in all species examined. The somata of GnRH1 neurons are located in the terminal nerve, medial septum (MS), and preoptic area (POA), and some GnRH1 neurons in the MS and POA project into the median eminence. In contrast, the somata of GnRH2 neurons are located in the midbrain tegmentum. In amphibians, GnRH1 neurons originate from the embryonic olfactory placode, while GnRH2 neurons originate from the midbrain. The characterization and feedback regulation mechanisms of hypophysiotropic GnRH1 neurons in amphibians, the involvement of GnRH1 in amphibian reproductive behavior, and its possible mechanism of action should be elucidated in future.
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Affiliation(s)
- Itaru Hasunuma
- Department of Biology, Faculty of Science, Toho University, Funabashi, Chiba, Japan
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Nkechika V, Zhang N, Belsham DD. The Involvement of the microRNAs miR-466c and miR-340 in the Palmitate-Mediated Dysregulation of Gonadotropin-Releasing Hormone Gene Expression. Genes (Basel) 2024; 15:397. [PMID: 38674332 DOI: 10.3390/genes15040397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
Diets high in saturated fatty acids are associated with obesity and infertility. Palmitate, the most prevalent circulating saturated fatty acid, is sensed by hypothalamic neurons, contributing to homeostatic dysregulation. Notably, palmitate elevates the mRNA levels of gonadotropin-releasing hormone (Gnrh) mRNA and its activating transcription factor, GATA binding protein 4 (Gata4). GATA4 is essential for basal Gnrh expression by binding to its enhancer region, with Oct-1 (Oct1) and CEBP-β (Cebpb) playing regulatory roles. The pre- and post-transcriptional control of Gnrh by palmitate have not been investigated. Given the ability of palmitate to alter microRNAs (miRNAs), we hypothesized that palmitate-mediated dysregulation of Gnrh mRNA involves specific miRNAs. In the mHypoA-GnRH/GFP neurons, palmitate significantly downregulated six miRNAs (miR-125a, miR-181b, miR-340, miR-351, miR-466c and miR-503), and the repression was attenuated by co-treatment with 100 μM of oleate. Subsequent mimic transfections revealed that miR-466c significantly downregulates Gnrh, Gata4, and Chop mRNA and increases Per2, whereas miR-340 upregulates Gnrh, Gata4, Oct1, Cebpb, and Per2 mRNA. Our findings suggest that palmitate may indirectly regulate Gnrh at both the pre- and post-transcriptional levels by altering miR-466c and miR-340, which in turn regulate transcription factor expression levels. In summary, palmitate-mediated dysregulation of Gnrh and, consequently, reproductive function involves parallel transcriptional mechanisms.
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Affiliation(s)
- Vanessa Nkechika
- Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada
| | - Ningtong Zhang
- Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada
| | - Denise D Belsham
- Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada
- Department of Medicine, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada
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张 余, 罗 飞. [Recent advances in the genetic etiology of central precocious puberty]. Zhongguo Dang Dai Er Ke Za Zhi 2024; 26:302-307. [PMID: 38557384 PMCID: PMC10986386 DOI: 10.7499/j.issn.1008-8830.2309098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/29/2024] [Indexed: 04/04/2024]
Abstract
Central precocious puberty (CPP) is a developmental disorder caused by early activation of the hypothalamic-pituitary-gonadal axis. The incidence of CPP is rapidly increasing, but the underlying mechanisms are not fully understood. Previous studies have shown that gain-of-function mutations in the KISS1R and KISS1 genes and loss-of-function mutations in the MKRN3, LIN28, and DLK1 genes may lead to early initiation of pubertal development. Recent research has also revealed the significant role of epigenetic factors such as DNA methylation and microRNAs in the regulation of gonadotropin-releasing hormone neurons, as well as the modulating effect of gene networks involving multiple variant genes on pubertal initiation. This review summarizes the genetic etiology and pathogenic mechanisms underlying CPP.
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Chen Z, Si L, Zhang X, Wei C, Shu W, Wei M, Cheng L, Chen Z, Qiao Y, Yang S. Therapeutic effects of melatonin in female mice with central precocious puberty by regulating the hypothalamic Kiss-1/Kiss1R system. Behav Brain Res 2024; 461:114783. [PMID: 38029845 DOI: 10.1016/j.bbr.2023.114783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/11/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
In recent years, central precocious puberty (CPP) in children is becoming more common, which seriously affects their physical and psychological health and requires finding a safe and effective treatment method. The aim of this study was to investigate the therapeutic effect of melatonin on CPP. A CPP model was established by subcutaneous injection of 300 micrograms of danazol into 5-day-old female mice, followed by treatment with melatonin and leuprolide. The vaginal opening was checked daily. Mice were weighed, gonads were weighed, gonadal index was calculated, and gonadal development was observed by hematoxylin and eosin (HE) staining. Serum follicle stimulating hormone (FSH), luteinizing hormone (LH) and estradiol (E2) levels were measured by ELISA. By using RT-PCR and Western blotting, the mRNA and protein expression of the hypothalamus Kiss-1, Kiss-1 receptor (Kiss1R), gonadotropin-releasing hormone (GnRH), and pituitary GnRH receptor (GnRHR) were identified. The results showed that melatonin delayed vaginal opening time and reduced body weight, gonadal weight and indices in female CPP mice. Melatonin treatment prevents uterine wall thickening and ovarian luteinization in female CPP mice. Melatonin treatment reduces serum concentrations of FSH, LH, and E2 in female CPP mice. Melatonin suppressed the expressions of Kiss-1, Kiss1R and GnRH in the hypothalamus, and the expression of GnRHR in the pituitary of the female CPP mice. Our results suggest that melatonin can inhibit the hypothalamic-pituitary-gonadal (HPG) axis by down-regulating the Kiss-1/Kiss1R system, thereby treating CPP in female mice.
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Affiliation(s)
- Zixuan Chen
- Department of Human Anatomy, Chengde Medical University, Chengde, China
| | - Lina Si
- Department of Human Anatomy, Chengde Medical University, Chengde, China
| | - Xin Zhang
- Department of Human Anatomy, Chengde Medical University, Chengde, China
| | - Chenyang Wei
- Department of Human Anatomy, Chengde Medical University, Chengde, China
| | - Weihan Shu
- Department of Immunology, Chengde Medical University, Chengde, China
| | - Meng Wei
- Department of Human Anatomy, Chengde Medical University, Chengde, China
| | - Luyang Cheng
- Department of Immunology, Chengde Medical University, Chengde, China
| | - Zhihong Chen
- Faculty of Graduate Studies, Chengde Medical University, Chengde, China
| | - Yuebing Qiao
- Department of Human Anatomy, Chengde Medical University, Chengde, China.
| | - Songhe Yang
- Faculty of Graduate Studies, Chengde Medical University, Chengde, China.
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Zhang G, Ye Z, Jiang Z, Wu C, Ge L, Wang J, Xu X, Wang T, Yang J. Circadian patterns and photoperiodic modulation of clock gene expression and neuroendocrine hormone secretion in the marine teleost Larimichthys crocea. Chronobiol Int 2024; 41:329-346. [PMID: 38516993 DOI: 10.1080/07420528.2024.2315215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/01/2024] [Indexed: 03/23/2024]
Abstract
The light/dark cycle, known as the photoperiod, plays a crucial role in influencing various physiological activities in fish, such as growth, feeding and reproduction. However, the underlying mechanisms of this influence are not fully understood. This study focuses on exploring the impact of different light regimes (LD: 12 h of light and 12 h of darkness; LL: 24 h of light and 0 h of darkness; DD: 0 h of light and 24 h of darkness) on the expression of clock genes (LcClocka, LcClockb, LcBmal, LcPer1, LcPer2) and the secretion of hormones (melatonin, GnRH, NPY) in the large yellow croaker, Larimichthys crocea. Real-time quantitative PCR (RT-qPCR) and enzyme-linked immunosorbent assays were utilized to assess how photoperiod variations affect clock gene expression and hormone secretion. The results indicate that changes in photoperiod can disrupt the rhythmic patterns of clock genes, leading to phase shifts and decreased expression. Particularly under LL conditions, the pineal LcClocka, LcBmal and LcPer1 genes lose their rhythmicity, while LcClockb and LcPer2 genes exhibit phase shifts, highlighting the importance of dark phase entrainment for maintaining rhythmicity. Additionally, altered photoperiod affects the neuroendocrine system of L. crocea. In comparison to the LD condition, LL and DD treatments showed a phase delay of GnRH secretion and an acceleration of NPY synthesis. These findings provide valuable insights into the regulatory patterns of circadian rhythms in fish and may contribute to optimizing the light environment in the L. crocea farming industry.
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Affiliation(s)
- Guangbo Zhang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Zhiqing Ye
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Zhijing Jiang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Chenqian Wu
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Lifei Ge
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Jixiu Wang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Xiuwen Xu
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Tianming Wang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Jingwen Yang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
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Lin CY, Nguyen NN, Tsai WL, Hsieh RH, Wu HT, Chen YC. Aspartame Intake Delayed Puberty Onset in Female Offspring Rats and Girls. Mol Nutr Food Res 2024; 68:e2300270. [PMID: 38389198 DOI: 10.1002/mnfr.202300270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 01/14/2024] [Indexed: 02/24/2024]
Abstract
SCOPE The disturbance of the hypothalamic-pituitary-gonadal (HPG) axis, gut microbiota (GM) community, and short-chain fatty acids (SCFAs) is a triggering factor for pubertal onset. The study investigates the effects of the long-term intake of aspartame on puberty and GM in animals and humans. METHODS AND RESULTS Aspartame-fed female offspring rats result in vaginal opening time prolongation, serum estrogen reduction, and serum luteinizing hormone elevation. , 60 mg kg-1 aspartame treatment decreases the mRNA levels of gonadotropin-releasing hormone (GnRH), Kiss1, and G protein-coupled receptor 54 (GPR54), increases the mRNA level of RFamide-related peptide-3 (RFRP-3), and decreases the expression of GnRH neurons in the hypothalamus. Significant differences in relative bacterial abundance at the genus levels and decreased fecal SCFA levels are noted by 60 mg kg-1 aspartame treatment. Among which, Escherichia-Shigella is negatively correlated with several SCFAs. In girls, high-dose aspartame consumption decreases the risk of precocious puberty. CONCLUSIONS Aspartame reduces the chance of puberty occurring earlier than usual in female offspring and girls. Particularly, 60 mg kg-1 aspartame-fed female offspring delays pubertal onset through the dysregulation of HPG axis and GM composition by inhibiting the Kiss1/GPR54 system and inducing the RFRP-3. An acceptable dose of aspartame should be recommended during childhood.
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Affiliation(s)
- Chia-Yuan Lin
- Department of Food Science, National Taiwan Ocean University, Keelung, 202301, Taiwan
- Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Nam Nhat Nguyen
- College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Wan-Ling Tsai
- Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- Department of Health Promotion and Gerontological Care, College of LOHAS, Taipei University of Marine Technology, New Taipei City, 25172, Taiwan
| | - Rong-Hong Hsieh
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, 110, Taiwan
| | - Hung-Tsung Wu
- Department of Internal Medicine, School of Medicine, College of Medicine, National Cheng Kung, University, Tainan, 701, Taiwan
| | - Yang-Ching Chen
- Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, 110, Taiwan
- Department of Family Medicine, Taipei Medical University Hospital, Taipei, 11031, Taiwan
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei, 110, Taiwan
- Department of Family Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, 116, Taiwan
- Nutrition Research Center, Taipei Medical University Hospital, Taipei, 110, Taiwan
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Miao DZ, Liu C, Deng ZY, Zhang C, Guo ZY, Li WQ, Wang Y, Yang HM, Wang ZY. Characterization of reproductive hormones and related gene expression in the hypothalamus and pituitary gland in the egg-laying interval in White King pigeon. Poult Sci 2024; 103:103422. [PMID: 38228063 PMCID: PMC10823133 DOI: 10.1016/j.psj.2024.103422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/22/2023] [Accepted: 01/01/2024] [Indexed: 01/18/2024] Open
Abstract
The egg-laying interval (LI) directly reflects the laying performance of breeding pigeons, influenced by reproductive hormones. This study aimed to assess reproductive hormone levels in serum and the expression of related genes and their receptors in the hypothalamus and pituitary gland in 4 stages: first (LI1), third (LI3), fifth (LI5), and seventh (LI7) days. The results showed that serum gonadotropin-releasing hormone (GnRH) level decreased from LI1 to LI7 (P < 0.01) and peaked in LI1. The serum follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels stayed at high levels from LI1 to LI5. The FSH level decreased slightly from LI5 to LI7 (P > 0.05), but the LH level decreased rapidly (P < 0.01). The prolactin (PRL) levels significantly increased in LI5 (P < 0.01) compared with LI1 and then stayed at a high level. The GnRH1 expression in the hypothalamus had no significant change in LI (P > 0.05). However, the GnRHR first decreased from LI1 to LI3 (P < 0.05) and then increased. The FSH mRNA level in the pituitary gland decreased from LI1 to LI3 and slightly increased in LI5 (P > 0.05). The change pattern of FSHR was similar to that of FSH and peaked in LI5 (P < 0.05). The LH expression level was the highest in LI5 and significantly higher than that in LI3 and LI7 (P < 0.05). However, the LHR mRNA level decreased in LI (P < 0.05). The expression patterns of PRL and PRLR were similar; they were upregulated in LI and peaked in LI7 (P < 0.01). The expression pattern of GnRHR was similar to that of FSH, LH, and FSHR, suggesting the critical role of GnRHR in LI. Furthermore, the expression levels of these genes peaked in LI5, closely correlating with the maturation of the first largest follicle in pigeons. PRL-PRLR signaling inhibited GnRH activity to promote ovulation. This study provided a basis for further investigating the molecular mechanisms underlying the regulation of reproduction in pigeons.
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Affiliation(s)
- D Z Miao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - C Liu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - Z Y Deng
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - C Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - Z Y Guo
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - W Q Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - Y Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China.
| | - H M Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
| | - Z Y Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province 225009, PR China
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12
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Yacca SS, Kanasaki H, Tumurbaatar T, Cairang Z, Oride A, Okada H, Kyo S. Changes in pituitary gonadotropin subunits and hypothalamic Kiss-1 gene expression by administration of sex steroids in ovary-intact female rats. Endocrine 2024; 83:733-746. [PMID: 37966704 DOI: 10.1007/s12020-023-03596-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 11/03/2023] [Indexed: 11/16/2023]
Abstract
OBJECTIVE We examined how the sex steroids influence the synthesis of gonadotropins. MATERIALS AND METHODS The effects of sex steroids estradiol (E2), progesterone (P4), and dihydrotestosterone (DHT) in pituitary gonadotroph cell model (LβT2 cells) in vitro and ovary-intact rats in vivo were examined. The effects of sex steroids on Kiss1 gene expression in the hypothalamus were also examined in ovary-intact rats. RESULTS In LβT2 cells, E2 increased common glycoprotein alpha (Cga) and luteinizing hormone beta (Lhb) subunit promoter activity as well as their mRNA expression. Although gonadotropin subunit promoter activity was not modulated by P4, Cga and Lhb mRNA expression was increased by P4. DHT inhibited Cga and Lhb mRNA expression with a concomitant decrease in their promoter activity. During the 2-week administration of exogenous E2 to ovary-intact rats, the estrous cycle determined by vaginal smears was disrupted. P4 or DHT administration completely eliminated the estrous cycle. Protein expression of all three gonadotropin subunits within the pituitary gland was inhibited by E2 or P4 treatment in vivo; however, DHT reduced Cga expression but did not modulate Lhb or follicle-stimulating hormone beta subunit expression. E2 administration significantly repressed Kiss1 mRNA expression in a posterior hypothalamic region that included the arcuate nucleus. P4 and DHT did not modulate Kiss1 mRNA expression in this region. In contrast, P4 administration significantly inhibited Kiss1 mRNA expression in the anterior region of the hypothalamus that included the anteroventral periventricular nucleus. The expression of gonadotropin-releasing hormone (Gnrh) mRNA in the anterior hypothalamic region, where the preoptic area is located, appeared to be decreased by treatment with E2 and P4. CONCLUSION Our findings suggest that sex steroids have different effects in the hypothalamus and pituitary gland.
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Affiliation(s)
- Susdiaman S Yacca
- Department of Obstetrics and Gynecology, Shimane University School of Medicine, Izumo, 693-8501, Japan
| | - Haruhiko Kanasaki
- Department of Obstetrics and Gynecology, Shimane University School of Medicine, Izumo, 693-8501, Japan.
| | - Tuvshintugs Tumurbaatar
- Department of Obstetrics and Gynecology, Shimane University School of Medicine, Izumo, 693-8501, Japan
| | - Zhuoma Cairang
- Department of Obstetrics and Gynecology, Shimane University School of Medicine, Izumo, 693-8501, Japan
| | - Aki Oride
- Department of Obstetrics and Gynecology, Shimane University School of Medicine, Izumo, 693-8501, Japan
| | - Hiroe Okada
- Department of Obstetrics and Gynecology, Shimane University School of Medicine, Izumo, 693-8501, Japan
| | - Satoru Kyo
- Department of Obstetrics and Gynecology, Shimane University School of Medicine, Izumo, 693-8501, Japan
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Banerjee AA, Bhanarkar SR, Keshwani R, Pande S, Modi DN, Mehta A, Bombe S, Pathak BR, Joshi B, Tandon D, Patil A, Begum S, Chauhan S, Mahale SD, Rao S, Surve SV. Relevance of augmented kisspeptin signaling through H 364 KISS1R in central precocious puberty. Gene 2024; 895:148016. [PMID: 37981083 DOI: 10.1016/j.gene.2023.148016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/28/2023] [Accepted: 11/16/2023] [Indexed: 11/21/2023]
Abstract
Understanding the pathophysiology of idiopathic central precocious puberty (ICPP) is essential, in view of its consequences on reproductive health and metabolic disorders in later life. Towards this, estimation of circulating levels of the neuropeptides, viz; Kisspeptin (Kp-10), Neurokinin B (NKB) and Neuropeptide Y (NPY), acting upstream to Gonadotropin-Releasing Hormone (GnRH), has shown promise. Insights can also be gained from functional studies on genetic variations implicated in ICPP. This study investigated the pathophysiology of ICPP in a girl by exploring the therapeutic relevance of the circulating levels of Kp-10, NKB, NPY and characterizing the nonsynonymous KISS1R variant, L364H, that she harbours, in a homozygous condition. Plasma levels of Kp-10, NKB and NPY before and after GnRH analog (GnRHa) treatment, were determined by ELISA. It was observed that GnRHa treatment resulted in suppression of circulating levels of Kp-10, NKB and NPY. Further, the H364 variant in KISS1R was generated by site directed mutagenesis. Post transient transfection of either L364 or H364 KISS1R variant in CHO cells, receptor expression was ascertained by western blotting, indirect immunofluorescence and flow cytometry. Kp-10 stimulated signalling response was also determined by phospho-ERK and inositol phosphate production. Structure-function studies revealed that, although the receptor expression in H364 KISS1R was comparable to L364 KISS1R, there was an enhanced signalling response through this variant at high doses of Kp-10. Thus, elevated levels of Kp-10, acting through H364 KISS1R, contributed to the manifestation of ICPP, providing further evidence that dysregulation of Kp-10/KISS1R axis impacts the onset of puberty.
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Affiliation(s)
- Antara A Banerjee
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Shital R Bhanarkar
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Rachna Keshwani
- Bai Jerbai Wadia Hospital For Children, Acharya Donde Marg, Parel, Mumbai 400 012, India
| | - Shailesh Pande
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Deepak N Modi
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Amrita Mehta
- Bai Jerbai Wadia Hospital For Children, Acharya Donde Marg, Parel, Mumbai 400 012, India
| | - Shweta Bombe
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Bhakti R Pathak
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Beena Joshi
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Deepti Tandon
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Anushree Patil
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Shahina Begum
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Sanjay Chauhan
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Smita D Mahale
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Sudha Rao
- Bai Jerbai Wadia Hospital For Children, Acharya Donde Marg, Parel, Mumbai 400 012, India.
| | - Suchitra V Surve
- ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India.
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Xu X, Yang L, Deng X, Xiao Q, Huang X, Wang C, Zhou Y, Luo X, Zhang Y, Xu X, Qin Q, Liu S. Expression and localization of HPG axis-related genes in Carassius auratus with different ploidy. Front Endocrinol (Lausanne) 2024; 15:1336679. [PMID: 38410696 PMCID: PMC10894961 DOI: 10.3389/fendo.2024.1336679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 01/16/2024] [Indexed: 02/28/2024] Open
Abstract
Introduction In the Dongting water system, the Carassius auratus (Crucian carp) complex is characterized by the coexistence of diploid forms (2n=100, 2nCC) and polyploidy forms. The diploid (2nCC) and triploid C.auratus (3n=150, 3nCC) had the same fertility levels, reaching sexual maturity at one year. Methods The nucleotide sequence, gene expression, methylation, and immunofluorescence of the gonadotropin releasing hormone 2(Gnrh2), Gonadotropin hormone beta(Gthβ), and Gonadotropin-releasing hormone receptor(Gthr) genes pivotal genes of the hypothalamic-pituitary-gonadal (HPG) axis were analyzed. Results The analysis results indicated that Gnrh2, follicle-stimulating hormone receptor(Fshr), and Lethal hybrid rescue(Lhr) genes increased the copy number and distinct structural differentiation in 3nCC compared to that in 2nCC. The transcript levels of HPG axis genes in 3nCC were higher than 2nCC (P<0.05), which could promote the production and secretion of sex steroid hormones conducive to the gonadal development of 3nCC. Meanwhile, the DNA methylation levels in the promoter regions of the HPG axis genes were lower in 3nCC than in 2nCC. These results suggested that methylation of the promoter region had a potential regulatory effect on gene expression after triploidization. Immunofluorescence showed that the localization of the Fshβ, Lhβ, and Fshr genes between 3nCC and 2nCC remained unchanged, ensuring the normal expression of these genes at the corresponding sites after triploidization. Discussion Relevant research results provide cell and molecular biology evidence for normal reproductive activities such as gonad development and gamete maturation in triploid C. auratus, and contribute to further understanding of the genetic basis for fertility restoration in triploid C. auratus.
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Affiliation(s)
- Xiaowei Xu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Li Yang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Xinyi Deng
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Qingwen Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Xu Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Chongqing Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Yue Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Xiang Luo
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Yuxin Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Xidan Xu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Qinbo Qin
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
- Nansha-South China Agricultural University Fishery Research Institute, Guangzhou, China
- Hunan Yuelu Mountain Science and Technology Co., Ltd., for Aquatic Breeding, Changsha, Hunan, China
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
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15
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Meng F, Li J, Han X, Li L, Li T, Du X, Cao X, Liang Q, Huang A, Kong F, Zeng X, Bu G. TAC3 regulates GnRH/gonadotropin synthesis in female chickens. Theriogenology 2024; 215:302-311. [PMID: 38128223 DOI: 10.1016/j.theriogenology.2023.12.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Neurokinin B (NKB), a peptide encoded by the tachykinin 3 (TAC3), is critical for reproduction in all studied species. However, its potential roles in birds are less clear. Using the female chicken (c-) as a model, we showed that cTAC3 is composed of five exons with a full-length cDNA of 787 bp, which was predicted to generate the mature NKB peptide containing 10 amino acids. Using cell-based luciferase reporter assays, we demonstrated that cNKB could effectively and specifically activate tachykinin receptor 3 (TACR3) in HEK293 cells, suggesting its physiological function is likely achieved via activating cTACR3 signaling. Notably, cTAC3 and cTACR3 were predominantly and abundantly expressed in the hypothalamus of hens and meanwhile the mRNA expression of cTAC3 was continuously increased during development, suggesting that NKB-TACR3 may emerge as important components of the neuroendocrine reproductive axis. In support, intraperitoneal injection of cNKB could significantly promote hypothalamic cGnRH-Ι, and pituitary cFSHβ and cLHβ expression in female chickens. Surprisingly, cTAC3 and cTACR3 were also expressed in the pituitary gland, and cNKB treatment significantly increased cLHβ and cFSHβ expression in cultured primary pituitary cells, suggesting cNKB can also act directly at the pituitary level to stimulate gonadotropin synthesis. Collectively, our results reveal that cNKB functionally regulate GnRH/gonadotropin synthesis in female chickens.
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Affiliation(s)
- Fengyan Meng
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China.
| | - Jinxuan Li
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Xingfa Han
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Lingyang Li
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Tianyang Li
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Xiaogang Du
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Xiaohan Cao
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Qiuxia Liang
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Anqi Huang
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Fanli Kong
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Xianyin Zeng
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Guixian Bu
- College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China.
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16
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Desaulniers AT, White BR. Role of gonadotropin-releasing hormone 2 and its receptor in human reproductive cancers. Front Endocrinol (Lausanne) 2024; 14:1341162. [PMID: 38260130 PMCID: PMC10800933 DOI: 10.3389/fendo.2023.1341162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 12/13/2023] [Indexed: 01/24/2024] Open
Abstract
Gonadotropin-releasing hormone (GnRH1) and its receptor (GnRHR1) drive reproduction by regulating gonadotropins. Another form, GnRH2, and its receptor (GnRHR2), also exist in mammals. In humans, GnRH2 and GnRHR2 genes are present, but coding errors in the GnRHR2 gene are predicted to hinder full-length protein production. Nonetheless, mounting evidence supports the presence of a functional GnRHR2 in humans. GnRH2 and its receptor have been identified throughout the body, including peripheral reproductive tissues like the ovary, uterus, breast, and prostate. In addition, GnRH2 and its receptor have been detected in a wide number of reproductive cancer cells in humans. Notably, GnRH2 analogues have potent anti-proliferative, pro-apoptotic, and/or anti-metastatic effects on various reproductive cancers, including endometrial, breast, placental, ovarian, and prostate. Thus, GnRH2 is an emerging target to treat human reproductive cancers.
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Affiliation(s)
- Amy T. Desaulniers
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Brett R. White
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, United States
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17
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Yang Y, Xu L, Lei B, Huang Y, Yu M. Effects of trichlorobisphenol A on the expression of proteins and genes associated with puberty initiation in GT1-7 cells and the relevant molecular mechanism. Food Chem Toxicol 2024; 183:114258. [PMID: 38040238 DOI: 10.1016/j.fct.2023.114258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
This study evaluated the effects of Cl3BPA on kisspeptin-G-protein coupled receptor 54 (GPR54)/gonadotropin-releasing hormone (GnRH) (KGG) signals and analyzed the roles of estrogen receptor alpha (ERɑ) and G-protein coupled estrogen receptor 1 (GPER1) in regulating KGG signals. The results showed that Cl3BPA at 50 μM increased the levels of intracellular reactive oxygen species (ROS) and GnRH, upregulated the protein levels of kisspeptin and the expression of fshr, lhr and gnrh1 genes related to KGG in GT1-7 cells. In addition, 50 μM Cl3BPA significantly upregulated the phosphorylation of extracellular regulated protein kinases 1/2 (Erk1/2), the protein levels of GPER1 and the expression of the gper1 as well as the most target genes associated with mitogen-activated protein kinase (MAPK)/Erk1/2 pathways. Specific signal inhibitor experiments found that Cl3BPA activated KGG signals by activating the GPER1-mediated MAPK/Erk1/2 signaling pathway at the mRNA level. A docking test further confirmed the interactions between Cl3BPA and GPER1. The findings suggest that Cl3BPA might induce precocious puberty by increasing GnRH secretion together with KGG signaling upregulation, which is driven by GPER1-mediated signaling pathway. By comparison, ClxBPAs with fewer chlorine atoms had more obvious effects on the expression of proteins and partial genes related to KGG signals in GT1-7 cells.
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Affiliation(s)
- Yingxin Yang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Lanbing Xu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Bingli Lei
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China.
| | - Yaoyao Huang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Mengjie Yu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
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18
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Cai Y, Yang H, Wan Z, Chen PY, Wang ZB, Guo JJ, Wang D, Wang F, Zhang Y. A novel lncRNA LOC105613571 binding with BDNF in pituitary promotes gonadotropin secretion by AKT/ERK-mTOR pathway in sheep associated with prolificacy. Biofactors 2024; 50:58-73. [PMID: 37431985 DOI: 10.1002/biof.1990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/14/2023] [Indexed: 07/12/2023]
Abstract
The pituitary is a vital endocrine organ for synthesis and secretion of gonadotropic hormones (FSH and LH), and the gonadotropin showed fluctuations in animals with different fecundity. Long non-coding RNAs (lncRNAs) have been identified as regulatory factors for the reproductive process. However, the profiles of lncRNAs and their roles involved in sheep fecundity remains unclear. In this study, we performed RNA-sequencing for the sheep pituitary gland associated with different fecundity, and identified a novel candidate lncRNA LOC105613571 targeting BDNF related to gonadotropin secretion. Our results showed that expression of lncRNA LOC105613571 and BDNF could be significantly upregulated by GnRH stimulation in sheep pituitary cells in vitro. Notably, either lncRNA LOC105613571 or BDNF silencing inhibited cell proliferation while promoted cell apoptosis. Moreover, lncRNA LOC105613571 knockdown could also downregulate gonadotropin secretion via inactivation AKT, ERK and mTOR pathway. In addition, co-treatment with GnRH stimulation and lncRNA LOC105613571 or BDNF knockdown showed the opposite effect on sheep pituitary cells in vitro. In summary, BDNF-binding lncRNA LOC105613571 in sheep regulates pituitary cell proliferation and gonadotropin secretion via the AKT/ERK-mTOR pathway, providing new ideas for the molecular mechanisms of pituitary functions.
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Affiliation(s)
- Yu Cai
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Hua Yang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhen Wan
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Pei-Yong Chen
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhi-Bo Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jin-Jing Guo
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Daxiang Wang
- Jiangsu Qianbao Animal Husbandry Co., Ltd, Yancheng, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yanli Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Zang S, Yin X, Li P. FTO-mediated m 6A demethylation regulates GnRH expression in the hypothalamus via the PLCβ3/Ca 2+/CAMK signalling pathway. Commun Biol 2023; 6:1297. [PMID: 38129517 PMCID: PMC10739951 DOI: 10.1038/s42003-023-05677-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
N6-methyladenosine (m6A) plays a crucial role in the development and functional homeostasis of the central nervous system. The fat mass and obesity-associated (FTO) gene, which is highly expressed in the hypothalamus, is closely related to female pubertal development. In this study, we found that m6A methylation decreased in the hypothalamus gradually with puberty and decreased in female rats with precocious puberty. FTO expression was increased at the same time. Methylated RNA immunoprecipitation sequencing (MeRIP-seq) showed that the m6A methylation of PLCβ3, a key enzyme of the Ca2+ signalling pathway, was decreased significantly in the hypothalamus in precocious rats. Upregulating FTO increased PLCβ3 expression and activated the Ca2+ signalling pathway, which promoted GnRH expression. Dual-luciferase reporter and MeRIP-qPCR assays confirmed that FTO regulated m6A demethylation of PLCβ3 and promoted PLCβ3 expression. Upon overexpressing FTO in the hypothalamic arcuate nucleus (ARC) in female rats, we observed advanced puberty onset. Meanwhile, PLCβ3 and GnRH expression in the hypothalamus increased significantly, and the Ca2+ signalling pathway was activated. Our study demonstrates that FTO enhances GnRH expression, which promotes puberty onset, by regulating m6A demethylation of PLCβ3 and activating the Ca2+ signalling pathway.
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Affiliation(s)
- Shaolian Zang
- Department of endocrinology, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, 200062, Shanghai, China
| | - Xiaoqin Yin
- Department of endocrinology, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, 200062, Shanghai, China.
| | - Pin Li
- Department of endocrinology, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, 200062, Shanghai, China.
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Xu W, Mu R, Gegen T, Ran T, Wu Q, Wen D, Wang F, Chen Z. Transcriptome analysis of hypothalamus and pituitary tissues reveals genetic mechanisms associated with high egg production rates in Changshun green-shell laying hens. BMC Genomics 2023; 24:792. [PMID: 38124055 PMCID: PMC10734086 DOI: 10.1186/s12864-023-09895-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Changshun green-shell laying hens are unique to the Guizhou Province, China, and have high egg quality but relatively low yield. Egg production traits are regulated by the hypothalamus-pituitary-ovary axis. However, the underlying mechanism remains unclear. Thus, we conducted RNA sequencing of hypothalamic and pituitary tissues from low- and high-yielding Changshun green-shell laying hens to identify critical pathways and candidate genes involved in controlling the egg production rate. RESULTS More than 39 million clean reads per sample were obtained, and more than 82% were mapped to the Gallus gallus genome. Further analysis identified 1,817 and 1,171 differentially expressed genes (DEGs) in the hypothalamus and pituitary, respectively. Nineteen DEGs were upregulated in both the hypothalamus and pituitary of high-yielding chickens. The functions of these DEGs were mainly associated with ion transport or signal transduction. Gene set enrichment analysis revealed that the pathways enriched in the hypothalamus were mainly associated with gonadotropin-releasing hormone (GnRH) secretion, neurotransmitter release, and circadian rhythms. The pathways enriched in the pituitary were mainly associated with GnRH secretion, energy metabolism, and signal transduction. Five and four DEGs in the hypothalamus and pituitary, respectively, were selected randomly for qRT-PCR analysis. The expression trends determined via qRT-PCR were consistent with the RNA-seq results. CONCLUSIONS The current study identified 19 DEGs upregulated in both the hypothalamus and pituitary gland, which could provide an important reference for further studies on the molecular mechanisms underlying egg production in Changshun green-shell laying hens. In addition, enrichment analysis showed that GnRH secretion and signal transduction, especially neurotransmitter release, play crucial roles in the regulation of egg production.
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Affiliation(s)
- Wenbin Xu
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Jianjiang Road 5, Duyun, 558000, China
- Qiannan Key Laboratory of Applied Biotechnology for Livestock and Poultry, Duyun, 558000, China
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ren Mu
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Jianjiang Road 5, Duyun, 558000, China.
- Qiannan Key Laboratory of Applied Biotechnology for Livestock and Poultry, Duyun, 558000, China.
| | - Tuya Gegen
- Qiannan Key Laboratory of Applied Biotechnology for Livestock and Poultry, Duyun, 558000, China
- Library, Qiannan Normal University for Nationalities, Duyun, 558000, China
| | - Tiantian Ran
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Jianjiang Road 5, Duyun, 558000, China
| | - Qi Wu
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Jianjiang Road 5, Duyun, 558000, China
- Qiannan Key Laboratory of Applied Biotechnology for Livestock and Poultry, Duyun, 558000, China
| | - Di Wen
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Jianjiang Road 5, Duyun, 558000, China
| | - Fen Wang
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Jianjiang Road 5, Duyun, 558000, China
| | - Zhi Chen
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Jianjiang Road 5, Duyun, 558000, China.
- Qiannan Key Laboratory of Applied Biotechnology for Livestock and Poultry, Duyun, 558000, China.
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Tesema B, Liu GQ, Jiang XP. Active kisspeptin DNA vaccines oral immunization disrupt mRNA hormone receptors expression in ram lambs. Anim Biotechnol 2023; 34:2285-2294. [PMID: 35714982 DOI: 10.1080/10495398.2022.2087665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
To evaluate the efficacy of oral immunization with active kisspeptin DNA vaccine on the expression of hormone receptor mRNA. For this study, ten 56-day-old Hu breed ram lambs were randomly assigned to the treatment and control groups (n = 5). Treatment Experimental group received C500/pKS-asd and the control group received C500/pVAX-asd (aspartate-β semialdehyde dehydrogenase orally on days 0, 28, and 56, and blood samples were taken at each immunization interval (14-day) and tissues samples were collected at the end of the experimental period (day 98). The collected samples were stored in the refrigerator at -20 °C and liquid nitrogen, respectively, for laboratory examination. Total RNA was extracted from samples using TRIzol reagent and quantitative real-time polymerase chain reaction (QPCR) was used to quantify the levels of KISS1, G protein-coupled receptor-54 (Kiss1r), and gonadotrophin-releasing hormone (GnRH) mRNA in the hypothalamus. Levels of luteinizing hormone receptor (LHR) and luteinizing hormone beta (LHβ) mRNA, and follicle-stimulating hormone receptor (FSHR) and follicle-stimulating hormone beta (FSHβ) mRNA in the testes and pituitary were analyzed, respectively. Further, gonadotropin-releasing hormone receptor (GnRHR) mRNA expression level in the pituitary was measured. Moreover, the Kiss1r concentration level in the blood was measured using an indirect ELISA. The concentration of Kiss1r in the blood was lower in the treatment group than in the control group (p < 0.05). The levels of testicular FSHR and LHR mRNA were significantly lower in the treatment group (p < 0.05) when compared to the control group. Furthermore, the treatment group's levels of hypothalamic KISS1, Kiss1r, and GnRH mRNA were significantly lower (p < 0.05) than the controls. LH, FSH, and GnRHR mRNA expression in the pituitary were also significantly lower in the treatment group (p < 0.01 and p < 0.05, respectively). These findings imply that oral immunization with active kisspeptin DNA vaccine suppresses hormone receptor mRNA expression in the ram lambs.
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Affiliation(s)
- Birhanu Tesema
- Key Laboratory of Agricultural - Animal Genetics, Breeding, and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
- Department of Animal Science, College of Agricultural Sciences, Bule Hora University, Bule Hora, Ethiopia
| | - Gui-Qiang Liu
- Key Laboratory of Agricultural - Animal Genetics, Breeding, and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Xun-Ping Jiang
- Key Laboratory of Agricultural - Animal Genetics, Breeding, and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
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22
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Li Y, Zhang H, Li Q, Huang X, Kong X. Association of the KISS1, LIN28B, VDR and ERα gene polymorphisms with early and fast puberty in Chinese girls. Gynecol Endocrinol 2023; 39:2181653. [PMID: 36828304 DOI: 10.1080/09513590.2023.2181653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
Abstract
OBJECTIVES To explore the association of KISS1, LIN28B, vitamin D receptor (VDR), and estrogen receptor α (ERα) gene polymorphisms and the risk of early with fast puberty (EFP) risk, and with hormone levels in EFP cases, in Chinese girls. METHODS The analysis was based on the data of 141 girls with EFP and 152 girls without EFP. Clinical features were documented, and all SNP genotyping was conducted using SNaPshot method. Statistical analysis was performed to assess the association of the SNPs with EFP risk, and with hormone levels in EFP cases. RESULTS There was a significant association between rs7759938-C polymorphism in the LIN28B gene and the risk for EFP in the recessive (TT + CT vs. CC) model (p = 0.040). Remarkably, rs5780218-delA polymorphism in the KISS1 gene and rs2234693-C polymorphism in the ERα gene were significantly associated with peak LH (luteinizing hormone) levels (p = 0.008, 0.045) and peak LH/FSH (follicle-stimulating hormone) ratio (p = 0.007, 0.006). Additionally, on 7 of the 8 variant loci the alleles associated with increased levels of both peak LH levels and peak LH/FSH ratio in EFP cases were also associated with increased CPP risk. CONCLUSIONS Our findings indicate that rs7759938-C polymorphism in the LIN28B gene might have a protective effect on EFP susceptibility. The most striking findings of this study is that, rs5780218-delA polymorphism in the KISS1 gene and rs2234693-C polymorphism in the ERα gene influenced levels of GnRH-stimulated peak LH and LH/FSH ratio, and in general CPP risk genes might also contributes to the abnormality of hormonal levels in EFP.
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Affiliation(s)
- Yunwei Li
- Faculty of Life Science and Biotechnology, Kunming University of Science and Technology, Kunming City, Yunnan Province, China
- Medical School, Kunming University of Science and Technology, Kunming City, Yunnan Province, China
- Department of Pharmacy, Kunming Children's Hospital, Kunming City, Yunnan Province, China
| | - Huifeng Zhang
- Department of Clinical Pharmacy, The First People's Hospital of Yunnan Province/the Affiliated Hospital of Kunming University of Science and Technology, Kunming City, Yunnan Province, China
| | - Qiang Li
- Department of Pharmacy, Kunming Children's Hospital, Kunming City, Yunnan Province, China
| | - Xinwei Huang
- Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiangyang Kong
- Medical School, Kunming University of Science and Technology, Kunming City, Yunnan Province, China
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23
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Cadena-Caballero CE, Munive-Argüelles N, Vera-Cala LM, Barrios-Hernandez C, Duarte-Bernal RO, Ayus-Ortiz VL, Pardo-Díaz LA, Agudelo-Rodríguez M, Bautista-Rozo LX, Jimenez-Gutierrez LR, Martinez-Perez F. APGW/AKH Precursor from Rotifer Brachionus plicatilis and the DNA Loss Model Explain Evolutionary Trends of the Neuropeptide LWamide, APGWamide, RPCH, AKH, ACP, CRZ, and GnRH Families. J Mol Evol 2023; 91:882-896. [PMID: 38102415 PMCID: PMC10730642 DOI: 10.1007/s00239-023-10146-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 11/11/2023] [Indexed: 12/17/2023]
Abstract
In the year 2002, DNA loss model (DNA-LM) postulated that neuropeptide genes to emerged through codons loss via the repair of damaged DNA from ancestral gene namely Neuropeptide Precursor Predictive (NPP), which organization correspond two or more neuropeptides precursors evolutive related. The DNA-LM was elaborated according to amino acids homology among LWamide, APGWamide, red pigment-concentrating hormone (RPCH), adipokinetic hormones (AKHs) and in silico APGW/RPCH NPPAPGW/AKH NPP were proposed. With the above principle, it was proposed the evolution of corazonin (CRZ), gonadotropin-releasing hormone (GnRH), AKH, and AKH/CRZ (ACP), but any NPP never was considered. However, the evolutive relation via DNA-LM among these neuropeptides precursors not has been established yet. Therefore, the transcriptomes from crabs Callinectes toxotes and Callinectes arcuatus were used to characterized ACP and partial CRZ precursors, respectively. BLAST alignment with APGW/RPCH NPP and APGW/AKH NPP allow identified similar NPP in the rotifer Brachionus plicatilis and other invertebrates. Moreover, three bioinformatics algorithms and manual verification were used to purify 13,778 sequences, generating a database with 719 neuropeptide precursors. Phylogenetic trees with the DNA-LM parameters showed that some ACP, CRZ, AKH2 and two NPP share nodes with GnRH from vertebrates and some of this neuropeptide had nodes in invertebrates. Whereas the phylogenetic tree with standard parameters do not showed previous node pattern. Robinson-Foulds metric corroborates the differences among phylogenetic trees. Homology relationship showed four putative orthogroups; AKH4, CRZ, and protostomes GnRH had individual group. This is the first demonstration of NPP in species and would explain the evolution neuropeptide families by the DNA-LM.
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Affiliation(s)
- Cristian E Cadena-Caballero
- Grupo de Investigación Computo Avanzado y a Gran Escala (CAGE), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Nestor Munive-Argüelles
- Grupo de Investigación Computo Avanzado y a Gran Escala (CAGE), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Lina M Vera-Cala
- Grupo de Investigación en Demografía, Salud Pública y Sistemas de Salud (GUINDESS), Departamento de Salud Pública, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Carlos Barrios-Hernandez
- Grupo de Investigación Computo Avanzado y a Gran Escala (CAGE), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Ruben O Duarte-Bernal
- Biomedical Imaging, Vision and Learning Laboratory (BIVL2ab), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Viviana L Ayus-Ortiz
- Grupo de Investigación Computo Avanzado y a Gran Escala (CAGE), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Luis A Pardo-Díaz
- Grupo de Investigación Computo Avanzado y a Gran Escala (CAGE), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Mayra Agudelo-Rodríguez
- Grupo de Investigación Computo Avanzado y a Gran Escala (CAGE), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Lola X Bautista-Rozo
- Biomedical Imaging, Vision and Learning Laboratory (BIVL2ab), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia
| | - Laura R Jimenez-Gutierrez
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, 82000, Mazatlán, México
- Cátedra-CONAHCyT, Consejo Nacional de Humanidades Ciencias y Tecnología, 03940, CDMX, México
| | - Francisco Martinez-Perez
- Grupo de Investigación Computo Avanzado y a Gran Escala (CAGE), Escuela de Ingeniería de Sistemas e Informática, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia.
- Laboratorio de Genómica Celular Aplicada (LGCA), Grupo de Microbiología y Genética, Escuela de Biología, Universidad Industrial de Santander, 680002, Bucaramanga, Colombia.
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Constantin S, Sokanovic SJ, Mochimaru Y, Smiljanic K, Sivcev S, Prévide RM, Wray S, Balla T, Stojilkovic SS. Postnatal Development and Maintenance of Functional Pituitary Gonadotrophs Is Dependent on PI4-Kinase A. Endocrinology 2023; 164:bqad168. [PMID: 37935042 PMCID: PMC10652335 DOI: 10.1210/endocr/bqad168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/27/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023]
Abstract
Postnatal development of functional pituitary gonadotrophs is necessary for maturation of the hypothalamic-pituitary-gonadal axis, puberty, and reproduction. Here we examined the role of PI4-kinase A, which catalyzes the biosynthesis of PI4P in mouse reproduction by knocking out this enzyme in cells expressing the gonadotropin-releasing hormone (GnRH) receptor. Knockout (KO) mice were infertile, reflecting underdeveloped gonads and reproductive tracts and lack of puberty. The number and distribution of hypothalamic GnRH neurons and Gnrh1 expression in postnatal KOs were not affected, whereas Kiss1/kisspeptin expression was increased. KO of PI4-kinase A also did not alter embryonic establishment and neonatal development and function of the gonadotroph population. However, during the postnatal period, there was a progressive loss of expression of gonadotroph-specific genes, including Fshb, Lhb, and Gnrhr, accompanied by low gonadotropin synthesis. The postnatal gonadotroph population also progressively declined, reaching approximately one-third of that observed in controls at 3 months of age. In these residual gonadotrophs, GnRH-dependent calcium signaling and calcium-dependent membrane potential changes were lost, but intracellular administration of inositol-14,5-trisphosphate rescued this signaling. These results indicate a key role for PI4-kinase A in the postnatal development and maintenance of a functional gonadotroph population.
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Affiliation(s)
- Stephanie Constantin
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
- Cellular and Developmental Neurobiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Srdjan J Sokanovic
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yuta Mochimaru
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kosara Smiljanic
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sonja Sivcev
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Rafael M Prévide
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Susan Wray
- Cellular and Developmental Neurobiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Tamas Balla
- Section on Molecular Signal Transduction, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Stanko S Stojilkovic
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
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Prévot V, Tena-Sempere M, Pitteloud N. New Horizons: Gonadotropin-Releasing Hormone and Cognition. J Clin Endocrinol Metab 2023; 108:2747-2758. [PMID: 37261390 DOI: 10.1210/clinem/dgad319] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 05/25/2023] [Accepted: 05/30/2023] [Indexed: 06/02/2023]
Abstract
Pulsatile secretion of gonadotropin-releasing hormone (GnRH) is essential for activating and maintaining the function of the hypothalamic-pituitary-gonadal axis, which controls the onset of puberty and fertility. Two recent studies suggest that, in addition to controlling reproduction, the neurons in the brain that produce GnRH are also involved in the control of postnatal brain maturation, odor discrimination, and adult cognition. This review will summarize the development and establishment of the GnRH system, with particular attention to the importance of its first postnatal activation, a phenomenon known as minipuberty, for later reproductive and nonreproductive functions. In addition, we will discuss the beneficial effects of restoring physiological (ie, pulsatile) GnRH levels on olfactory and cognitive alterations in preclinical Down syndrome and Alzheimer disease models, as well as the potential risks associated with long-term continuous (ie, nonphysiological) GnRH administration in certain disorders. Finally, this review addresses the intriguing possibility that pulsatile GnRH therapy may hold therapeutic potential for the management of some neurodevelopmental cognitive disorders and pathological aging in elderly people.
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Affiliation(s)
- Vincent Prévot
- University of Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Neuroendocrine Brain, Lille Neuroscience & Cognition, UMR S1172, Lille F-59000, France
| | - Manuel Tena-Sempere
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), 14004 Córdoba, Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, 14004 Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 14004 Córdoba, Spain
| | - Nelly Pitteloud
- Department of Endocrinology, Diabetology and Metabolism, Lausanne University Hospital, Lausanne 1011, Switzerland
- Faculty of Biology and Medicine, Université of Lausanne, Lausanne 1005, Switzerland
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Tian Q, Tang J, Wang L, Liu J, Li X, Cao Z, Tian Z. Idiopathic hypogonadotropic hypogonadism caused by compound heterozygosity for two novel mutations in the GNRH1 gene: a case report. BMC Endocr Disord 2023; 23:213. [PMID: 37798680 PMCID: PMC10557371 DOI: 10.1186/s12902-023-01455-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 09/11/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND Idiopathic hypogonadotropic hypogonadism (IHH) is a rare congenital or acquired genetic disorder caused by gonadotropin-releasing hormone (GnRH) deficiency. IHH patients are divided into two major groups, hyposmic or anosmic IHH (Kallmann syndrome) and normosmic IHH (nIHH), according to whether their sense of smell is intact. Here we report a case of novel compound heterozygous mutations in the GNRH1 gene in a 15-year-old male with nIHH. CASE PRESENTATION The patient presented typical clinical symptoms of delayed testicular development, with testosterone < 3.5 mmol/L and reduced gonadotropin (follicle-stimulating hormone, luteinizing hormone) levels. Two heterozygous variants of the GNRH1 gene were detected, nonsense variant 1: c.85G > T:p.G29* and variant 2: c.1A > G:p.M1V, which disrupted the start codon. CONCLUSIONS Two GNRH1 mutations responsible for nIHH are identified in this study. Our findings extend the mutational spectrum of GNRH1 by revealing novel causative mutations of nIHH.
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Affiliation(s)
- Qingqing Tian
- Department of Endocrinology, Xi'an Central Hospital, No. 161 Xiwu Road, Xi'an, 710003, Shaanxi, China
- Medical School of Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Jingjing Tang
- Department of Endocrinology, Xi'an Central Hospital, No. 161 Xiwu Road, Xi'an, 710003, Shaanxi, China
| | - Lihong Wang
- Department of Endocrinology, Xi'an Central Hospital, No. 161 Xiwu Road, Xi'an, 710003, Shaanxi, China
- Medical School of Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Jiaojiao Liu
- Department of Endocrinology, Xi'an Central Hospital, No. 161 Xiwu Road, Xi'an, 710003, Shaanxi, China
- Medical School of Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Xiangshan Li
- Department of Endocrinology, Xi'an Central Hospital, No. 161 Xiwu Road, Xi'an, 710003, Shaanxi, China
- Medical School of Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Zhuozhuo Cao
- Department of Endocrinology, Xi'an Central Hospital, No. 161 Xiwu Road, Xi'an, 710003, Shaanxi, China
- Medical School of Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Zhufang Tian
- Department of Endocrinology, Xi'an Central Hospital, No. 161 Xiwu Road, Xi'an, 710003, Shaanxi, China.
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Jin H, Yang H, Zheng J, Zhou J, Yu R. Post-trigger luteinizing hormone concentration to positively predict oocyte yield in the antagonist protocol and its association with genetic variants of LHCGR. J Ovarian Res 2023; 16:189. [PMID: 37691102 PMCID: PMC10494325 DOI: 10.1186/s13048-023-01271-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 08/30/2023] [Indexed: 09/12/2023] Open
Abstract
BACKGROUND The concentration of human chorionic gonadotropin (hCG)/ luteinizing hormone (LH) after triggering is generally accepted as a predictor of the normal ovarian response to the trigger, but few studies have explored the distribution model of concentration and its impact on oocyte yield. Genetic variations in LHCGR, known as a receptor for hCG and LH, also play a role in oocyte maturation and retrieval. The objective of the study was to investigate the impact of concentrations of hCG/LH after triggering on oocyte yield and its association with genetic variants of LHCGR. METHODS A retrospective cohort study including 372 antagonist IVF cycles, in which 205 received the recombinant hCG trigger and 167 received the gonadotropin-releasing hormone agonist (GnRH-a) trigger, was conducted. The post-trigger concentrations of hCG/LH and the LHCGR N312S (rs2293275) genotype were evaluated in patients to analyse the impact of these factors on oocyte yield. RESULTS The oocyte retrieval rate (ORR) increased significantly among the low-, medium- and high-hCG-concentration groups (0.91 ± 0.25, 0.99 ± 0.23 and 1.08 ± 0.19, P < 0.001) and among the low-, medium- and high-LH-concentration groups (0.80 ± 0.29, 0.95 ± 0.21 and 1.07 ± 0.19, P < 0.001). The Pearson correlation coefficient between the post-trigger hCG concentration and ORR was 0.242 (P < 0.001), and that between the LH concentration and ORR was 0.454 (P < 0.001). After adjustment for confounding factors, high post-trigger LH concentrations remained associated with the significantly higher ORRs (adjusted R2 = 0.541, P < 0.001). Patients with the AG genotype of LHCGR N312S were more likely to have low post-trigger LH concentrations (46.10 IU/L versus 60.91 IU/L, P < 0.001) and a significantly lower ORR (0.85 versus 0.96, P = 0.042) than patients with the GG genotype after the GnRH-a trigger. CONCLUSIONS The post-trigger LH concentration can positively predict oocyte yield in antagonist IVF cycles, and patients with the AG genotype of LHCGR rs2293275 could have a suboptimal oocyte yield using the GnRH-a trigger.
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Affiliation(s)
- Hao Jin
- The Urological Surgical Department, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Haiyan Yang
- The Reproductive Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China, No. 96, Fuxue Road, Lucheng District
| | - Jiujia Zheng
- The Reproductive Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China, No. 96, Fuxue Road, Lucheng District
| | - Jiechun Zhou
- The Reproductive Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China, No. 96, Fuxue Road, Lucheng District
| | - Rong Yu
- The Reproductive Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China, No. 96, Fuxue Road, Lucheng District.
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Yang H, Zhu Y, Li X, Jiang Z, Dai W. RNF216 affects the stability of STAU2 in the hypothalamus. Dev Growth Differ 2023; 65:408-417. [PMID: 37439148 DOI: 10.1111/dgd.12877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/16/2023] [Accepted: 07/09/2023] [Indexed: 07/14/2023]
Abstract
Idiopathic hypogonadotropic hypogonadism (IHH) is a rare disease characterized by gonadal failure due to deficiency in gonadotropin-releasing hormone (GnRH) synthesis, secretion, or action. RNF216 variants have been recently identified in patients with IHH. Ring finger protein 216 (RNF216), as a ubiquitin E3 ligase, catalyzes the ubiquitination of target proteins with high specificity, which consequently modulates the stability, localization, and interaction of the target protein. In this study, we found that RNF216 interacted with Staufen2 (STAU2) and affected the stability of STAU2 through the ubiquitin-proteasome pathway. STAU2, as a double-stranded RNA-binding protein enriched in the nervous system, plays a role in RNA transport, RNA stability, translation, anchoring, and synaptic plasticity. Further, we revealed that STAU2 levels in the hypothalamus of RNF216-/- mice were increased compared with wild-type (WT) mice. The change in STAU2 protein homeostasis may affect a series of RNA cargoes. Therefore, we analyzed the changes in RNA levels in the hypothalamus of RNF216-/- mice and WT mice by RNA sequencing. We found that deletion of RNF216 led to decreased activities of the prolactin signaling pathway, neuroactive ligand-receptor interaction, GnRH signaling pathway, and ovarian steroidogenesis. The weakening of these signal pathways is likely to affect the secretion of GnRH, thereby affecting the development of gonads. Therefore, our study suggests that STAU2 may be a potential therapeutic target for IHH. Further experiments are needed to demonstrate the association between the weakening of these signaling pathways and the RNA-binding protein STAU2.
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Affiliation(s)
- Han Yang
- Department of Clinical Laboratory, The Affiliated Zhuzhou Hospital Xiangya Medical College, Central South University, Zhuzhou, China
- School of Life Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, China
| | - Yong Zhu
- Blood Transfusion Department, The Affiliated Zhuzhou Hospital Xiangya Medical College, Central South University, Zhuzhou, China
| | - Xin Li
- School of Life Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, China
| | - Zuiming Jiang
- Department of Clinical Laboratory, The Affiliated Zhuzhou Hospital Xiangya Medical College, Central South University, Zhuzhou, China
| | - Wenting Dai
- Department of Clinical Laboratory, The Affiliated Zhuzhou Hospital Xiangya Medical College, Central South University, Zhuzhou, China
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29
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Sissung TM, Lochrin S, Liu T, Schmidt K, Strope J, Risdon E, Choo-Wosoba H, Venzon DJ, Lassoued W, Sater HA, Walter-Rodriguez B, Price DK, Figg WD. GNRH2 Polymorphism in Men With Prostate Cancer Treated With Androgen Deprivation Therapy. Anticancer Res 2023; 43:4023-4030. [PMID: 37648321 PMCID: PMC10760530 DOI: 10.21873/anticanres.16590] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND/AIM Gonadotropin-releasing hormone 2 (GNRH2) is a poorly-studied peptide hormone that is widely distributed in the central nervous system and expressed in peripheral tissues of mammals. The non-synonymous rs6051545 variant in GNRH2 (A16V) has been linked to higher serum testosterone concentrations. This study investigated whether the A16V variant is associated with altered androgen-deprivation therapy (ADT) progression-free survival (PFS) and overall survival (OS). PATIENTS AND METHODS We examined the expression of GNRH2 in prostate tissue microarrays comprising normal tissue, prostatic hyperplasia, and prostate cancer using immunofluorescence. We also evaluated the GNRH2 genotype in 131 patients with prostate cancer who received ADT and compared PFS and OS between the variant and wild-type genotypes. RESULTS GNRH2 was detected in all prostate tissues, although expression did not vary with Gleason grade or disease stage (p=0.71). The GNRH2 A16V genotype was not associated with PFS or OS; however, univariate and multivariate analyses revealed Gleason score and definitive local therapy were each associated with PFS (p≤0.0074), whereas age and Gleason score were associated with OS (p≤0.0046). CONCLUSION GNRH2 is expressed in normal, hyperplastic, and neoplastic prostate tissues; the A16V variant is not related to treatment outcome or survival.
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Affiliation(s)
- Tristan M Sissung
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Sarah Lochrin
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Tyler Liu
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Keith Schmidt
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Jonathan Strope
- Molecular Pharmacology Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Emily Risdon
- Molecular Pharmacology Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Hyoyoung Choo-Wosoba
- Biostatistics and Data Management Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - David J Venzon
- Biostatistics and Data Management Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Wiem Lassoued
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Houssein A Sater
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Beatriz Walter-Rodriguez
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - Douglas K Price
- Molecular Pharmacology Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
| | - William D Figg
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A.
- Molecular Pharmacology Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, U.S.A
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30
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Cho HJ, Gurbuz F, Stamou M, Kotan LD, Farmer SM, Can S, Tompkins MF, Mammadova J, Altincik SA, Gokce C, Catli G, Bugrul F, Bartlett K, Turan I, Balasubramanian R, Yuksel B, Seminara SB, Wray S, Topaloglu AK. POU6F2 mutation in humans with pubertal failure alters GnRH transcript expression. Front Endocrinol (Lausanne) 2023; 14:1203542. [PMID: 37600690 PMCID: PMC10436210 DOI: 10.3389/fendo.2023.1203542] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 06/23/2023] [Indexed: 08/22/2023] Open
Abstract
Idiopathic hypogonadotropic hypogonadism (IHH) is characterized by the absence of pubertal development and subsequent impaired fertility often due to gonadotropin-releasing hormone (GnRH) deficits. Exome sequencing of two independent cohorts of IHH patients identified 12 rare missense variants in POU6F2 in 15 patients. POU6F2 encodes two distinct isoforms. In the adult mouse, expression of both isoform1 and isoform2 was detected in the brain, pituitary, and gonads. However, only isoform1 was detected in mouse primary GnRH cells and three immortalized GnRH cell lines, two mouse and one human. To date, the function of isoform2 has been verified as a transcription factor, while the function of isoform1 has been unknown. In the present report, bioinformatics and cell assays on a human-derived GnRH cell line reveal a novel function for isoform1, demonstrating it can act as a transcriptional regulator, decreasing GNRH1 expression. In addition, the impact of the two most prevalent POU6F2 variants, identified in five IHH patients, that were located at/or close to the DNA-binding domain was examined. Notably, one of these mutations prevented the repression of GnRH transcripts by isoform1. Normally, GnRH transcription increases as GnRH cells mature as they near migrate into the brain. Augmentation earlier during development can disrupt normal GnRH cell migration, consistent with some POU6F2 variants contributing to the IHH pathogenesis.
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Affiliation(s)
- Hyun-Ju Cho
- Cellular and Developmental Neurobiology Section, National Institute of Neurologic Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Fatih Gurbuz
- Division of Pediatric Endocrinology, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Maria Stamou
- Harvard Reproductive Sciences Center, The Reproductive Endocrine Unit and The Endocrine Unit of the Department of Medicine, Massachusetts General Hospital, Boston, MA, United States
| | - Leman Damla Kotan
- Division of Pediatric Endocrinology, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Stephen Matthew Farmer
- Cellular and Developmental Neurobiology Section, National Institute of Neurologic Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Sule Can
- Division of Pediatric Endocrinology, İzmir Tepecik Training and Research Hospital, Health Sciences University, İzmir, Türkiye
| | - Miranda Faith Tompkins
- Cellular and Developmental Neurobiology Section, National Institute of Neurologic Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Jamala Mammadova
- Division of Pediatric Endocrinology, Faculty of Medicine, Ondokuz Mayis University, Samsun, Türkiye
| | - S. Ayca Altincik
- Division of Pediatric Endocrinology, Faculty of Medicine, Pamukkale University, Denizli, Türkiye
| | - Cumali Gokce
- Division of Endocrinology, Faculty of Medicine, Mustafa Kemal University, Hatay, Türkiye
| | - Gonul Catli
- Division of Pediatric Endocrinology, İzmir Tepecik Training and Research Hospital, Health Sciences University, İzmir, Türkiye
| | - Fuat Bugrul
- Division of Pediatric Endocrinology, Faculty of Medicine, Selcuk University, Konya, Türkiye
| | - Keenan Bartlett
- Cellular and Developmental Neurobiology Section, National Institute of Neurologic Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Ihsan Turan
- Division of Pediatric Endocrinology, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Ravikumar Balasubramanian
- Harvard Reproductive Sciences Center, The Reproductive Endocrine Unit and The Endocrine Unit of the Department of Medicine, Massachusetts General Hospital, Boston, MA, United States
| | - Bilgin Yuksel
- Division of Pediatric Endocrinology, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Stephanie B. Seminara
- Harvard Reproductive Sciences Center, The Reproductive Endocrine Unit and The Endocrine Unit of the Department of Medicine, Massachusetts General Hospital, Boston, MA, United States
| | - Susan Wray
- Cellular and Developmental Neurobiology Section, National Institute of Neurologic Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - A. Kemal Topaloglu
- Department of Pediatrics, Division of Pediatric Endocrinology, University of Mississippi Medical Center, Jackson, MS, United States
- Division of Pediatric Endocrinology, Massachusetts General Hospital for Children and Harvard Medical School, Boston, MS, United States
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31
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Uenoyama Y, Inoue N, Tsukamura H. Kisspeptin and lactational anestrus: Current understanding and future prospects. Peptides 2023; 166:171026. [PMID: 37230188 DOI: 10.1016/j.peptides.2023.171026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 05/27/2023]
Abstract
Lactational anestrus, characterized by the suppression of pulsatile gonadotropin-releasing hormone (GnRH)/luteinizing hormone (LH) release, would be a strategic adaptation to ensure survival by avoiding pregnancy during lactation in mammals. In the present article, we first provide a current understanding of the central regulation of reproduction in mammals, i.e., a fundamental role of arcuate kisspeptin neurons in mammalian reproduction by driving GnRH/LH pulses. Second, we discuss the central mechanism inhibiting arcuate Kiss1 (encoding kisspeptin) expression and GnRH/LH pulses during lactation with a focus on suckling stimulus, negative energy balance due to milk production, and the role of circulating estrogen in rats. We also discuss upper regulators that control arcuate kisspeptin neurons in rats during the early and late lactation periods based on the findings obtained by a lactating rat model. Finally, we discuss potential reproductive technology for the improvement of reproductive performance in milking cows.
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Affiliation(s)
- Yoshihisa Uenoyama
- Laboratory of Animal Reproduction, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
| | - Naoko Inoue
- Laboratory of Animal Reproduction, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Hiroko Tsukamura
- Laboratory of Animal Reproduction, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
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32
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Song Y, Qin C, Zhang C, Peng Y, Yang W, Du Y, Xu T. GNRH family genes contributed to gender-specific disparity of bladder cancer prognosis through exerting opposite regulatory roles between males and females. J Cancer Res Clin Oncol 2023; 149:6827-6840. [PMID: 36806614 DOI: 10.1007/s00432-023-04640-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 02/07/2023] [Indexed: 02/23/2023]
Abstract
PURPOSE There is gender-specific disparity in bladder cancer (BlCa) prognosis. Female BlCa patients present with more advanced tumor and have higher risks of disease recurrence, progression, and mortality than males. Since gonadotropin-releasing hormone (GNRH) family genes were critical genes in gender-related biological activity and could be detected in BlCa specimens, this study aimed to explore potential roles of GNRH1 and GNRHR in gender disparity of BlCa. METHODS RNA-sequencing data from The Cancer Genome Atlas Bladder Urothelial Carcinoma dataset, IMvigor210 immunotherapy cohort and Cancer Cell Line Encyclopedia database were used to compare potential roles of GNRH1 and GNRHR in males and females, respectively. Gene set enrichment analysis was used to analyze the biological functions. RESULTS Males with higher GNRH1 and GNRHR have better overall survival (P < 0.05, HR < 1), while females with higher expression have a trend toward worse overall survival (P < 0.05, HR > 1). Gene set enrichment analysis identified GNRH1 and GNRHR exert opposite regulatory roles in myogenesis (M5909), interferon-α response (M5911), interferon-γ response (M5913), inflammatory response (M5932) and TNF-α signaling via NF-κβ (M5890) between males and females. The five functions are up-regulated in females (NES > 0), while down-regulated in males (NES < 0). GNRH1 in females was positively correlated with CD3D (R-value > 0 and P < 0.05), while GNRHR in males was negatively correlated with CD247, CD3D and CD3E (R-value < 0 and P < 0.05). CONCLUSION GNRH1 and GNRHR have opposite effects on overall survival in different genders, and exert opposite roles in immune-related functions between different genders, which could emerge as a contributor to gender disparity of BlCa prognosis.
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Affiliation(s)
- Yuxuan Song
- Department of Urology, Peking University People's Hospital, Beijing, 100044, China
| | - Caipeng Qin
- Department of Urology, Peking University People's Hospital, Beijing, 100044, China
| | - Chunlong Zhang
- Department of Urology, Peking University People's Hospital, Beijing, 100044, China
| | - Yun Peng
- Department of Urology, Peking University People's Hospital, Beijing, 100044, China
| | - Wenbo Yang
- Department of Urology, Peking University People's Hospital, Beijing, 100044, China
| | - Yiqing Du
- Department of Urology, Peking University People's Hospital, Beijing, 100044, China.
| | - Tao Xu
- Department of Urology, Peking University People's Hospital, Beijing, 100044, China.
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Wang X, Chen D, Zhao Y, Men M, Chen Z, Jiang F, Zheng R, Stamou MI, Plummer L, Balasubramanian R, Li JD. A functional spectrum of PROKR2 mutations identified in isolated hypogonadotropic hypogonadism. Hum Mol Genet 2023; 32:1722-1729. [PMID: 36694982 PMCID: PMC10422949 DOI: 10.1093/hmg/ddad014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 12/04/2022] [Accepted: 01/21/2023] [Indexed: 01/26/2023] Open
Abstract
Isolated hypogonadotropic hypogonadism (IHH) is a rare disease with hypogonadism and infertility caused by the defects in embryonic migration of hypothalamic gonadotropin-releasing hormone (GnRH) neurons, hypothalamic GnRH secretion or GnRH signal transduction. PROKR2 gene, encoding a G-protein coupled receptor PROKR2, is one of the most frequently mutated genes identified in IHH patients. However, the functional consequences of several PROKR2 mutants remain elusive. In this study, we systematically analyzed the Gαq, Gαs and ERK1/2 signaling of 23 IHH-associated PROKR2 mutations which are yet to be functionally characterized. We demonstrate that blockage of Gαq, instead of MAPK/ERK pathway, inhibited PROK2-induced migration of PROKR2-expressing cells, implying that PROKR2-related IHH results primarily due to Gαq signaling pathway disruption. Combined with previous reports, we categorized a total of 63 IHH-associated PROKR2 mutations into four distinct groups according Gαq pathway functionality: (i) neutral (N, >80% activity); (ii) low pathogenicity (L, 50-80% activity); (iii) medium pathogenicity (M, 20-50% activity) and (iv) high pathogenicity (H, <20% activity). We further compared the cell-based functional results with in silico mutational prediction programs. Our results indicated that while Sorting Intolerant from Tolerant predictions were accurate for transmembrane region mutations, mutations localized in the intracellular and extracellular domains were accurately predicted by the Combined Annotation Dependent Depletion prediction tool. Our results thus provide a functional database that can be used to guide diagnosis and appropriate genetic counseling in IHH patients with PROKR2 mutations.
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Affiliation(s)
- Xinying Wang
- School of Life Sciences, Central South University, Changsha, Hunan 410078, China
- Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan 410078, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, Hunan 410078, China
| | - Danna Chen
- Department of Basic Medical Sciences, Changsha Medical University, Changsha, Hunan 410219, China
| | - Yaguang Zhao
- School of Life Sciences, Central South University, Changsha, Hunan 410078, China
- Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan 410078, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, Hunan 410078, China
| | - Meichao Men
- Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan 410078, China
| | - Zhiheng Chen
- School of Life Sciences, Central South University, Changsha, Hunan 410078, China
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Fang Jiang
- School of Life Sciences, Central South University, Changsha, Hunan 410078, China
- Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan 410078, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, Hunan 410078, China
| | - Ruizhi Zheng
- Department of Endocrinology, The People's Hospital of Henan Province, Zhengzhou, Henan 450003, China
| | - Maria I Stamou
- Reproductive Endocrine Unit, Massachusetts General Hospital and the Center for Reproductive Medicine, Boston, MA 02141, USA
| | - Lacey Plummer
- Reproductive Endocrine Unit, Massachusetts General Hospital and the Center for Reproductive Medicine, Boston, MA 02141, USA
| | - Ravikumar Balasubramanian
- Reproductive Endocrine Unit, Massachusetts General Hospital and the Center for Reproductive Medicine, Boston, MA 02141, USA
| | - Jia-Da Li
- School of Life Sciences, Central South University, Changsha, Hunan 410078, China
- Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan 410078, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, Hunan 410078, China
- Hunan International Scientific and Technological Cooperation Base of Animal Models for Human Disease, Changsha, Hunan 410078, China
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Chung WCJ, Tsai PS. The initiation and maintenance of gonadotropin-releasing hormone neuron identity in congenital hypogonadotropic hypogonadism. Front Endocrinol (Lausanne) 2023; 14:1166132. [PMID: 37181038 PMCID: PMC10173152 DOI: 10.3389/fendo.2023.1166132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/12/2023] [Indexed: 05/16/2023] Open
Abstract
Neurons that secrete gonadotropin-releasing hormone (GnRH) drive vertebrate reproduction. Genetic lesions that disrupt these neurons in humans lead to congenital hypogonadotropic hypogonadism (CHH) and reproductive failure. Studies on CHH have largely focused on the disruption of prenatal GnRH neuronal migration and postnatal GnRH secretory activity. However, recent evidence suggests a need to also focus on how GnRH neurons initiate and maintain their identity during prenatal and postnatal periods. This review will provide a brief overview of what is known about these processes and several gaps in our knowledge, with an emphasis on how disruption of GnRH neuronal identity can lead to CHH phenotypes.
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Affiliation(s)
- Wilson CJ Chung
- Department of Biological Sciences, Kent State University, Kent, OH, United States
| | - Pei-San Tsai
- Department of Integrative Physiology, University of Colorado, Boulder, CO, United States
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35
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Kim MJ, Kim JA, Song JA, Kho KH, Choi CY. Synthetic microfiber exposure negatively affects reproductive parameters in male medaka (Oryzias latipes). Gen Comp Endocrinol 2023; 334:114216. [PMID: 36681254 DOI: 10.1016/j.ygcen.2023.114216] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023]
Abstract
Microplastics not only accumulate in the bodies of fishes and cause damage to the organs, but also cause many other problems, such as reduced reproductive capacity, by acting directly or indirectly on the hypothalamus-pituitary-gonad axis (HPG axis). In this study, we investigated the changes in HPG axis-related genes in male medaka (Oryzias latipes) exposed to fiber-type microplastics. We confirmed the progression of vitellogenesis, a sign of endocrine disruption, in male fish. In the microfiber-exposed group, microfiber accumulation was confirmed in the gills and intestines. One week after exposure to two different concentrations of microfibers (500 and 1,000 fibers/L), the fish showed increased expression of gonadotropin-releasing hormone (GnRH) and luteinizing hormone receptor (LH-R) mRNA. From day 10 of exposure to the microfibers, there was an increase in the expression of the gonadotropin-inhibitory hormone (GnIH) mRNA and a decrease in the expression of GnRH and LH-R mRNA. There was an increase in the cytochrome P450 aromatase (CYP19a) mRNA expression and plasma estradiol (E2) concentration in the 1,000 fibers/L exposure group. High vitellogenin (VTG) mRNA expression was confirmed seven days after exposure in the 1,000 fibers/L group, which was consistent with the VTG mRNA expression signals detected in the liver using in situ hybridization. These results suggest that microfiber ingestion may cause short-term endocrinal disruption of the HPG axis in male medaka, which in turn may interfere with their normal maturation process.
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Affiliation(s)
- Min Ju Kim
- Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Jin A Kim
- Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Jin Ah Song
- Marine Bio-Resources Research Unit, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea
| | - Kang Hee Kho
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea
| | - Cheol Young Choi
- Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University, Busan 49112, Republic of Korea; Division of Marine BioScience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea.
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Wang T, Zhao G, Yu S, Zheng Y, Guo H, Wang H, Zhao P, Xie W, Ren W, Yuan B. Sequencing of the Pituitary Transcriptome after GnRH Treatment Uncovers the Involvement of lncRNA-m23b/miR-23b-3p/CAMK2D in FSH Synthesis and Secretion. Genes (Basel) 2023; 14:genes14040846. [PMID: 37107604 PMCID: PMC10137480 DOI: 10.3390/genes14040846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
The pituitary gland is a key participant in the hypothalamic–pituitary–gonadal axis, as it secretes a variety of hormones and plays an important role in mammalian reproduction. Gonadotrophin-releasing hormone(GnRH) signaling molecules can bind to GnRH receptors on the surfaces of adenohypophysis gonadotropin cells and regulate the expression of follicle-stimulating hormone(FSH) and luteinizing hormone(LH) through various pathways. An increasing number of studies have shown that noncoding RNAs mediate the regulation of GnRH signaling molecules in the adenohypophysis. However, the expression changes and underlying mechanisms of genes and noncoding RNAs in the adenohypophysis under the action of GnRH remain unclear. In the present study, we performed RNA sequencing (RNA-seq) of the rat adenohypophysis before and after GnRH treatment to identify differentially expressed mRNAs, lncRNAs, and miRNAs. We found 385 mRNAs, 704 lncRNAs, and 20 miRNAs that were significantly differentially expressed in the rat adenohypophysis. Then, we used a software to predict the regulatory roles of lncRNAs as molecular sponges that compete with mRNAs to bind miRNAs, and construct a GnRH-mediated ceRNA regulatory network. Finally, we enriched the differentially expressed mRNAs, lncRNA target genes, and ceRNA regulatory networks to analyze their potential roles. Based on the sequencing results, we verified that GnRH could affect FSH synthesis and secretion by promoting the competitive binding of lncRNA-m23b to miR-23b-3p to regulate the expression of Calcium/Calmodulin Dependent Protein Kinase II Delta(CAMK2D). Our findings provide strong data to support exploration of the physiological processes in the rat adenohypophysis under the action of GnRH. Furthermore, our profile of lncRNA expression in the rat adenohypophysis provides a theoretical basis for research on the roles of lncRNAs in the adenohypophysis.
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Affiliation(s)
- Tian Wang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Guokun Zhao
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Song Yu
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Yi Zheng
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Haixiang Guo
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Haoqi Wang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Peisen Zhao
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Wenyin Xie
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Wenzhi Ren
- Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun 130062, China
- Correspondence: (W.R.); (B.Y.); Tel.: +86-431-8783-6562 (W.R.); +86-431-8783-6536 (B.Y.)
| | - Bao Yuan
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
- Correspondence: (W.R.); (B.Y.); Tel.: +86-431-8783-6562 (W.R.); +86-431-8783-6536 (B.Y.)
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Zhou L, Ren Y, Li D, Zhou W, Li C, Wang Q, Yang X. Timosaponin AIII attenuates precocious puberty in mice through downregulating the hypothalamic-pituitary-gonadal axis. Acta Biochim Pol 2023; 70:183-190. [PMID: 36928746 DOI: 10.18388/abp.2020_6450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/16/2023] [Indexed: 03/17/2023]
Abstract
Precocious puberty (PP) has increasingly become a social concern. This study aimed to investigate the effect of timosaponin AIII (TAIII) on the precocious puberty and its possible mechanisms in mice. Four groups of mice consisting of controls that received saline or TAIII, a model that received leptin to induce precocious puberty (PP), and leptin+TAIII (the leptin model treated with TAIII) were used to determine the effect of TAIII on PP. Pathological and cytological examinations were conducted to investigate the signs and onset of PP and the development of reproductive organs. The level of serum luteinizing hormone (LH), follicle stimulating hormone (FSH) and estradiol (E2) were determined using enzyme-linked immunosorbent assay (ELISA). The expression of genes related to the hypothalamic-pituitary-gonadal axis (HPGA) was assessed using qRT-PCR and Western blotting. Bone mineral density (BMD) was determined using high resolution peripheral quantitative computed tomography. In mice treated with leptin, earlier vaginal opening and estrus were observed, as well as the increased ovarian and uterine weight, total uterine cross-sectional size, number of corpora lutea, and elevated serum sex hormone levels and HPGA expression. On the other hand, TAIII treatment delayed the vaginal opening and vaginal estrus to 32.1 and 37.5 days after birth, and delayed the development of reproductive organs, leading to significantly smaller uterus and ovary size, less corpora lutea and low BMD (P<0.05). In addition, the serum levels of LH, FSH and E2 were significantly reduced (P<0.05) and so was the expression of HPGA and leptin genes (P<0.05). Our experimental data demonstrated that TAIII has activity against leptin-induced PP activity and may attenuate PP by reducing reproductive hormones and deactivating the hypothalamic-pituitary-gonadal axis through downregulating leptin expression.
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Affiliation(s)
- Lili Zhou
- Pediatrics Department, Beijing University of Chinese Medicine Shenzhen Hospital at Longgang, Shenzhen, China
| | - Yaoquan Ren
- Pediatrics Department, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Dongmei Li
- Pediatrics Department, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Weiwei Zhou
- Pediatrics Department, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Chengke Li
- Pediatrics Department, Beijing University of Chinese Medicine Shenzhen Hospital at Longgang, Shenzhen, China
| | - Qiang Wang
- Pediatrics Department, Beijing University of Chinese Medicine Shenzhen Hospital at Longgang, Shenzhen, China
| | - Xiangzheng Yang
- Pediatrics Department, Beijing University of Chinese Medicine Shenzhen Hospital at Longgang, Shenzhen, China
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Jiang S, Miao J, Wang L, Yao L, Pan L. Transcriptomic response to GnRH down regulation by RNA interference in clam Ruditapes philippinarum, suggest possible role in reproductive function. Comp Biochem Physiol A Mol Integr Physiol 2023; 277:111367. [PMID: 36608928 DOI: 10.1016/j.cbpa.2022.111367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/25/2022] [Accepted: 12/29/2022] [Indexed: 01/09/2023]
Abstract
Gonadotropin-releasing hormone (GnRH) plays a key role in the control of the reproductive axis in vertebrates, however, little is known about its function in reproductive endocrine regulation in molluscs. In the present study, RNA-seq was used to construct transcriptomes of Ruditapes philippinarum testis and ovaries of control and GnRH suppressed individuals using RNA interference. GnRH suppression caused 112 and 169 enriched KEGG pathways in testis and ovary, with 92 pathways in common in both comparisons. The most enriched KEGG pathways occurred in the "Oxidative phosphorylation", "Dorso-ventral axis formation", "Thyroid hormone synthesis" and "Oxytocin signaling pathway" etc. A total of 1838 genes in testis and 358 genes in ovaries were detected differentially expressed in GnRH suppressed clams. Among the differentially expressed genes, a suit of genes related to regulation of steroid hormones synthesis and gonadal development, were found in both ovary and testis with RNAi of GnRH. These results suggest that GnRH may play an important role in reproductive function in bivalves. This study provides a preliminary basis for studying the function and regulatory mechanism of GnRH in bivalves.
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Affiliation(s)
- Shanshan Jiang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Jingjing Miao
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China.
| | - Lu Wang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Linlin Yao
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
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Machtinger R, Racowsky C, Baccarelli AA, Bollati V, Orvieto R, Hauser R, Barnett-Itzhaki Z. Recombinant human chorionic gonadotropin and gonadotropin-releasing hormone agonist differently affect the profile of extracellular vesicle microRNAs in human follicular fluid. J Assist Reprod Genet 2023; 40:527-536. [PMID: 36609942 PMCID: PMC10033801 DOI: 10.1007/s10815-022-02703-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 12/19/2022] [Indexed: 01/08/2023] Open
Abstract
PURPOSE To compare the expression profile of extracellular vesicle microRNAs (EV-miRNAs) derived from follicular fluid after a trigger with recombinant human chorionic gonadotropin (r-hCG) or with a gonadotropin-releasing hormone GnRH agonist (GnRH-a) for final oocyte maturation. METHODS A retrospective analysis of a prospective cohort. Women undergoing in vitro fertilization at a tertiary university-affiliated hospital were recruited between 2014 and 2016. EV-miRNAs were extracted from the follicular fluid of a single follicle, and their expression was assessed using TaqMan Open Array®. Genes regulated by EV-miRNAs were analyzed using miRWalk2.0 Targetscan database, DAVID Bioinformatics Resources, Kyoto-Encyclopedia of Genes and Genomes (KEGG), and Gene Ontology (GO). RESULTS Eighty-two women were included in the r-hCG trigger group and 9 in the GnRH-a group. Of 754 EV-miRNAs screened, 135 were detected in at least 50% of the samples and expressed in both groups and were further analyzed. After adjusting for multiple testing, 41 EV-miRNAs whose expression levels significantly differed between the two trigger groups were identified. Bioinformatics analysis of the genes regulated by these EV-miRNAs showed distinct pathways between the two triggers, including TGF-beta signaling, cell cycle, and Wnt signaling pathways. Most of these pathways regulate cascades associated with apoptosis, embryo development, implantation, decidualization, and placental development. CONCLUSIONS Trigger with GnRH-a or r-hCG leads to distinct EV-miRNAs expression profiles and to downstream biological effects in ovarian follicles. These findings may provide an insight for the increased apoptosis and the lower implantation rates following GnRH-a trigger vs. r-hCG in cases lacking intensive luteal phase support.
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Affiliation(s)
- R Machtinger
- Department of Obstetrics and Gynecology, Division of IVF, Sheba Medical Center, Ramat Gan 5262000, Israel.
- Sackler School of Medicine, Tel-Aviv University, 6997801, Tel Aviv, Israel.
| | - C Racowsky
- Department of Obstetrics, Gynecology and Reproductive Medicine, Hospital Foch, Suresnes, France
| | - A A Baccarelli
- Laboratory of Precision Environmental Biosciences, Department of Environmental Health Sciences, Columbia Mailman School of Public Health, New York, NY, 10032, USA
| | - V Bollati
- EPIGET Lab, Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, 20122, Milan, Italy
- Occupational Health Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy
| | - R Orvieto
- Department of Obstetrics and Gynecology, Division of IVF, Sheba Medical Center, Ramat Gan 5262000, Israel
| | - R Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Z Barnett-Itzhaki
- Public Health Services, Ministry of Health, 9446724, Jerusalem, Israel
- Faculty of Engineering, Ruppin Academic Center, 4025000, Emek Hefer, Israel
- Ruppin Research Group in Environmental and Social Sustainability, Ruppin Academic Center, 4025000, Emek Hefer, Israel
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Gautam P, Ajit K, Das M, Taliyan R, Roy R, Banerjee A. Age-related changes in gonadotropin-releasing hormone (GnRH) splice variants in mouse brain. J Exp Zool A Ecol Integr Physiol 2023; 339:193-209. [PMID: 36336790 DOI: 10.1002/jez.2671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 09/07/2022] [Accepted: 10/07/2022] [Indexed: 11/09/2022]
Abstract
Gonadotropin-releasing hormone (GnRH) is the primary regulator of the mammalian reproductive axis. We investigated the spatiotemporal expression of GnRH splice variants (V1, V2, and V3) and splicing factors (Srsf7, Srsf9, and Tra-2) in the male mice brain. Further, using in silico tools, we predicted protein structure and the reason for the low translational efficiency of V2 and V3. Messenger RNA levels of GnRH variants and splicing factors were quantified using real-time reverse transcription-polymerase chain reaction at different age groups. Our data show that expression of almost all the variants alters with aging in all the brain regions studied; even in comparison to the hypothalamus, several brain areas were found to have higher expression of these variants. Hypothalamic expression of splicing factors such as Srsf7, Srsf9, and Tra-2 also change with aging. Computational studies have translation repressors site on the V3, which probably reduces its translation efficiency. Also, V2 is an intrinsically disordered protein that might have a regulatory or signaling function. In conclusion, this study provides novel crucial information and multiple starting points for future analysis of GnRH splice variants in the brain.
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Affiliation(s)
- Pooja Gautam
- Department of Biological Sciences, BITS Pilani, KK Birla, Goa Campus, Goa, India
| | - Kamal Ajit
- Department of Biological Sciences, BITS Pilani, KK Birla, Goa Campus, Goa, India
| | - Moitreyi Das
- Department of Zoology, Goa University, Goa, India
| | - Rajeev Taliyan
- Department of Pharmacy, BITS Pilani, Pilani Campus, Rajasthan, India
| | | | - Arnab Banerjee
- Department of Biological Sciences, BITS Pilani, KK Birla, Goa Campus, Goa, India
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Gan H, Zhu B, Zhou F, Ding Z, Liu J, Ye X. Perinatal exposure to low doses of cypermethrin induce the puberty-related hormones and decrease the time to puberty in the female offspring. Environ Sci Pollut Res Int 2023; 30:2665-2675. [PMID: 35931855 DOI: 10.1007/s11356-022-22328-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Pyrethroid insecticides are ubiquitously detected in environmental media, food, and urine samples. Our previous epidemiological study reported a correlation between increased pyrethroid exposure and delayed pubertal development in Chinese girls. In this study, we further investigated the effects of perinatal exposure to low doses of cypermethrin (CP) on pubertal onset and hypothalamic-pituitary-ovarian axis in the female mice offspring. The treatment of CP with 60 μg/kg/day from gestation day 6 (GD6) to postnatal day 21 (PND21) significantly decreased the time to puberty in the female offspring. Exposure of CP increased the serum levels of gonadotropin-releasing hormone (GnRH) and the expression of GnRH genes in a dose-dependent manner in the female offspring. CP also induced the serum levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), as well as the expression of gonadotropin subunit genes [LHβ, FSHβ, and chorionic gonadotropin α (Cgα)]. Furthermore, CP induced serum estradiol (E2) levels and the expression of steroidogenesis-related genes [steroidogenic acute regulatory (StAR) and Cytochrome p 450, family 11, subfamily A, polypeptide 1 (CYP11A1)] in the ovary. In accordance with the in vivo tests, administration of CP (6.7, 20, and 60 μg/L) stimulated a dose-dependent increase in the synthesis and secretion of the puberty-related hormones in the explants of hypothalamus, pituitary, and ovary. The interference with calcium channels in the ovary may be responsible for CP-induced pubertal onset. Our study provided evidence that perinatal exposure to low doses of CP induced puberty-related hormones and decreased the time to puberty in the female offspring.
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Affiliation(s)
- Hongya Gan
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Bingqi Zhu
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Fangmei Zhou
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhishan Ding
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiaoqing Ye
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Martins T, Rocha CC, Driver JD, Rae O, Elzo MA, Mateescu RG, Santos JEP, Binelli M. What a 31-yr multibreed herd taught us about the influence of B. indicus genetics on reproductive performance of cows. J Anim Sci 2022; 100:skac366. [PMID: 36331079 PMCID: PMC9733534 DOI: 10.1093/jas/skac366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Bos taurus × Bos indicus crosses are widespread in tropical and subtropical regions, nonetheless, quantitative information about the influence of B. indicus genetics on the reproductive performance of beef cattle is lacking. Herein, we determined the association between level of B. indicus genetics and reproduction from a 31-yr dataset comprising sequential breeding seasons of the University of Florida multibreed herd (n = 6,503 Angus × Brahman cows). The proportion of B. indicus genetics in this herd is evenly distributed by each 1/32nd or approximately 3-percentage points. From 1989 to 2020, the estrous cycle of cows was synchronized for artificial insemination (AI) based on detected estrus or timed-AI (TAI) using programs based on gonadotropin-releasing hormone and prostaglandin, and progestin/progesterone. All cows were exposed to natural service after AI and approximately 90-d breeding seasons, considering the day of AI as day 0. The proportion of B. indicus genetics of cows was associated negatively with pregnancy per AI, ranging from 51.6% for cows with 0%-19% of B. indicus genetics to 37.4% for cows with 81%-100% of B. indicus genetics. Similar association was found for estrous response at the end of the synchronization protocol, ranging from 66.3% to 38.4%, respectively. This reduced estrous response helped to explain the pregnancy results, once the pregnancy to AI of cows showing estrus was 2.3-fold greater than for those not showing estrus and submitted to TAI. Despite reduced pregnancy per AI, the increase in the proportion of B. indicus genetics of cows was not associated with a reduction in the proportion of pregnant cows at the end of the breeding season. Nevertheless, the interval from entering the breeding season to pregnancy was lengthened as the proportion of B. indicus genetics of cows increased. The median days to pregnancy was extended by 25 when the proportion of B. indicus genetics surpassed 78% compared with less than 20%. Thus, the increase in the proportion of B. indicus genetics of cows was related to a reduction in pregnancy per AI and lengthening the interval to attain pregnancy during the breeding season, but not with the final proportion of pregnant cows. As a result, reproductive management strategies directed specifically to cows with a greater proportion of B. indicus genetics are needed to improve the rate of pregnancy in beef herds.
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Affiliation(s)
- Thiago Martins
- Department of Animal Sciences and D.H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida, USA
- Department of Animal and Dairy Sciences and Brown Loam Experiment Station, Mississippi State University, Mississippi, USA
| | - Cecilia C Rocha
- Department of Animal Sciences and D.H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida, USA
| | - Joseph Danny Driver
- Department of Animal Sciences and D.H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida, USA
| | - Owen Rae
- Department of Large Animal Clinical Sciences, University of Florida, Gainesville, Florida, USA
| | - Mauricio A Elzo
- Department of Animal Sciences and D.H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida, USA
| | - Raluca G Mateescu
- Department of Animal Sciences and D.H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida, USA
| | - Jose Eduardo P Santos
- Department of Animal Sciences and D.H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida, USA
| | - Mario Binelli
- Department of Animal Sciences and D.H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, Florida, USA
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Lippincott MF, Xu W, Smith AA, Miao X, Lafont A, Shennib O, Farley GJ, Sabbagh R, Delaney A, Stamou M, Plummer L, Salnikov K, Georgopoulos NA, Mericq V, Quinton R, Mau-Them FT, Nambot S, Hamad A, Brittain H, Tooze RS, Calpena E, Wilkie AOM, Willems M, Crowley WF, Balasubramanian R, Lamarche-Vane N, Davis EE, Seminara SB. The p190 RhoGAPs, ARHGAP35, and ARHGAP5 are implicated in GnRH neuronal development: Evidence from patients with idiopathic hypogonadotropic hypogonadism, zebrafish, and in vitro GAP activity assay. Genet Med 2022; 24:2501-2515. [PMID: 36178483 PMCID: PMC9730938 DOI: 10.1016/j.gim.2022.08.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/24/2022] [Accepted: 08/24/2022] [Indexed: 12/14/2022] Open
Abstract
PURPOSE The study aimed to identify novel genes for idiopathic hypogonadotropic hypogonadism (IHH). METHODS A cohort of 1387 probands with IHH underwent exome sequencing and de novo, familial, and cohort-wide investigations. Functional studies were performed on 2 p190 Rho GTPase-activating proteins (p190 RhoGAP), ARHGAP35 and ARHGAP5, which involved in vivo modeling in larval zebrafish and an in vitro p190A-GAP activity assay. RESULTS Rare protein-truncating variants (PTVs; n = 5) and missense variants in the RhoGAP domain (n = 7) in ARHGAP35 were identified in IHH cases (rare variant enrichment: PTV [unadjusted P = 3.1E-06] and missense [adjusted P = 4.9E-03] vs controls). Zebrafish modeling using gnrh3:egfp phenotype assessment showed that mutant larvae with deficient arhgap35a, the predominant ARHGAP35 paralog in the zebrafish brain, display decreased GnRH3-GFP+ neuronal area, a readout for IHH. In vitro GAP activity studies showed that 1 rare missense variant [ARHGAP35 p.(Arg1284Trp)] had decreased GAP activity. Rare PTVs (n = 2) also were discovered in ARHGAP5, a paralog of ARHGAP35; however, arhgap5 zebrafish mutants did not display significant GnRH3-GFP+ abnormalities. CONCLUSION This study identified ARHGAP35 as a new autosomal dominant genetic driver for IHH and ARHGAP5 as a candidate gene for IHH. These observations suggest a novel role for the p190 RhoGAP proteins in GnRH neuronal development and integrity.
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Affiliation(s)
| | - Wanxue Xu
- Reproductive Endocrine Unit, Massachusetts General Hospital, Boston, MA
| | - Abigail A Smith
- Department of Pediatrics and Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL; Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
| | - Xinyu Miao
- Cancer Research Program, Research Institute of the McGill University Health Centre, Department of Anatomy and Cell Biology, McGill University, Montréal, Quebec, Canada
| | - Agathe Lafont
- Center for Human Disease Modeling, Duke University Medical Center, Durham, NC
| | - Omar Shennib
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
| | - Gordon J Farley
- Reproductive Endocrine Unit, Massachusetts General Hospital, Boston, MA
| | - Riwa Sabbagh
- Reproductive Endocrine Unit, Massachusetts General Hospital, Boston, MA
| | - Angela Delaney
- Intramural Research Program, National Institutes of Health, Bethesda, MD
| | - Maria Stamou
- Reproductive Endocrine Unit, Massachusetts General Hospital, Boston, MA
| | - Lacey Plummer
- Reproductive Endocrine Unit, Massachusetts General Hospital, Boston, MA
| | - Kathryn Salnikov
- Reproductive Endocrine Unit, Massachusetts General Hospital, Boston, MA
| | - Neoklis A Georgopoulos
- Division of Endocrinology-Department of Internal Medicine, University of Patras School of Health Sciences, Rio-Patras, Greece
| | - Veronica Mericq
- Instituto de Investigaciones Materno Infantil (IDIMI), University of Chile, Santiago, Chile
| | - Richard Quinton
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Frederic Tran Mau-Them
- Functional Unit 6254 Innovation in Genomic Diagnosis of Rare Diseases, CHU Dijon Bourgogne, Dijon, France
| | - Sophie Nambot
- Centre de Référence Maladies Rares « Anomalies du Développement Et Syndrome Malformatifs » de L'Est, Hôpital D'Enfants, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Asma Hamad
- Department of Clinical Genetics, Birmingham Women's and Children's Hospital NHS Foundation Trust, Birmingham, United Kingdom
| | - Helen Brittain
- Department of Clinical Genetics, Birmingham Women's and Children's Hospital NHS Foundation Trust, Birmingham, United Kingdom
| | - Rebecca S Tooze
- Clinical Genetics Group, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Eduardo Calpena
- Clinical Genetics Group, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Andrew O M Wilkie
- Clinical Genetics Group, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Marjolaine Willems
- Medical Genetic Department for Rare Diseases and Personalized Medicine, Reference Center AD SOOR, AnDDI-RARE, Groupe DI, Inserm U1298, INM, Montpellier University, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | | | | | - Nathalie Lamarche-Vane
- Cancer Research Program, Research Institute of the McGill University Health Centre, Department of Anatomy and Cell Biology, McGill University, Montréal, Quebec, Canada
| | - Erica E Davis
- Department of Pediatrics and Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL; Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
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Wang SS, Zhao WY, Wu HX, Shu M, Yuan JX, Fang L, Xu C. Research on the variants of FGFR1 and CEP290 genes in idiopathic hypogonadotropin hypogonadism. Yi Chuan 2022; 44:937-949. [PMID: 36384729 DOI: 10.16288/j.yczz.22-196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Idiopathic hypogonadotropic hypogonadism (IHH) is a rare endocrine disease characterized by gonadal dysplasia. According to whether the sense of smell is affected, this disorder is classified into Kallmann syndrome (KS) and normosmic isolated hypogonadotropic hypogonadism (nIHH). In this study, we reported a case of nIHH patient and explored the pathogenic mechanism of FGFR1 in nIHH. A FGFR1 variant (c.2008G>A, p.E670K) and a CEP290 variant (c.964G>A, p.D322N) were detected by the whole exome sequencing in this nIHH patient. Bioinformatic analysis revealed that this FGFR1 variant (c.2008G>A) causes structural perturbations in TK2 domain demonstrating that this variant result in FGFR1 loss-of-function and abnormal signaling. The identification of an additional CEP290 variant (c.964G>A) indicated that CEP290 might play a potential role in developmental abnormalities and inhibition of GnRH neuron release. A protein interaction network analysis showed that CEP290 was predicted to interact with FGFR1. In summary, our study identified the potential pathogenic mechanism(s) of the novel FGFR1 variant and indicated that CEP290 might play a role in the GnRH neuron migration route. Our findings expand the mutation spectrum of FGFR1 and CEP290 and provide a reference for clinical diagnosis and treatment of IHH.
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Affiliation(s)
- Shan-Shan Wang
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Institute of Endocrinology, Shandong Academy of Clinical Medicine, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 2500212, China
| | - Wan-Yi Zhao
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, Institute of Endocrinology, Shandong Academy of Clinical Medicine, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - Hui-Xiao Wu
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, Institute of Endocrinology, Shandong Academy of Clinical Medicine, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - Meng Shu
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, Institute of Endocrinology, Shandong Academy of Clinical Medicine, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - Jia-Xin Yuan
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, Institute of Endocrinology, Shandong Academy of Clinical Medicine, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - Li Fang
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, Institute of Endocrinology, Shandong Academy of Clinical Medicine, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - Chao Xu
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Institute of Endocrinology, Shandong Academy of Clinical Medicine, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 2500212, China
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Constantin S, Bjelobaba I, Stojilkovic SS. Pituitary gonadotroph-specific patterns of gene expression and hormone secretion. Curr Opin Pharmacol 2022; 66:102274. [PMID: 35994915 PMCID: PMC9509429 DOI: 10.1016/j.coph.2022.102274] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 11/28/2022]
Abstract
Pituitary gonadotrophs play a key role in reproductive functions by secreting luteinizing hormone (LH) and follicle-stimulating hormone (FSH). The LH secretory activity of gonadotroph is controlled by hypothalamic gonadotropin-releasing hormone (GnRH) via GnRH receptors and is accompanied by only minor effects on high basal Lhb gene expression. The secretory profiles of GnRH and LH are highly synchronized, with the latter reflecting a depletion of prestored LH in secretory vesicles by regulated exocytosis. In contrast, FSH is predominantly released by constitutive exocytosis, and secretory activity reflects the kinetics of Fshb gene expression controlled by GnRH, activin, and inhibin. Here is a review of recent data to improve the understanding of multiple patterns of gonadotroph gene expression and hormone secretion.
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Affiliation(s)
- Stephanie Constantin
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ivana Bjelobaba
- Department for Neurobiology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000, Belgrade, Serbia
| | - Stanko S Stojilkovic
- Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
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Sugisawa C, Taniyama M, Sato T, Takahashi Y, Hasegawa T, Narumi S. Biallelic PROKR2 variants and congenital hypogonadotropic hypogonadism: a case report and a literature review. Endocr J 2022; 69:831-838. [PMID: 35236788 DOI: 10.1507/endocrj.ej21-0779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Congenital hypogonadotropic hypogonadism (CHH) is a rare disorder that causes gonadotropin-releasing hormone (GnRH) deficiency and sexual immaturity. CHH may accompany an abnormal sense of smell (Kallmann syndrome, KS) or no such manifestation (normosmic-CHH). This unusual combination of manifestations is explained by the fact that GnRH neurons originate in the olfactory placode and migrate to the forebrain during embryogenesis. We describe the case of a 31-year-old man with normosmic-CHH, who also had obesity, type 2 diabetes and intellectual disability. He was noticed to have sexual immaturity (small testes with no pubic hair) at age 20 years, when diabetic ketoacidosis developed. Basal and GnRH-stimulated levels of LH (1.0→12.0 IU/L) and FSH (1.9→6.1 IU/L) were detectable but low. The results of the T&T olfactometer and the Alinamin test were definitely normal, with an anatomically normal olfactory system on MRI. Sequencing of 22 CHH-related genes was performed, and compound heterozygous PROKR2 variants were identified: one was a previously known loss-of-function variant (p.Trp178Ser) and the other was a nonsense variant (p.Trp212*). Through a literature review, we found 22 patients (including our patient) with CHH due to biallelic PROKR2 variants, which led us to recognize that most of the patients (86%) were diagnosed with KS. Clinical observations in this study indicate that, even though they have CHH, biallelic PROKR2 variant carriers may have a normal olfactory system as well as presumably normal migration of GnRH neurons. This suggests that the PROK2-PROKR2 pathway affects the function of GnRH neurons after their migration.
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Affiliation(s)
- Chiho Sugisawa
- Division of Diabetes, Metabolism and Endocrinology, Showa University Fujigaoka Hospital, Kanagawa 227-8501, Japan
- Department of Pediatrics, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Matsuo Taniyama
- Division of Diabetes, Metabolism and Endocrinology, Showa University Fujigaoka Hospital, Kanagawa 227-8501, Japan
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Tokyo 142-8555, Japan
| | - Takeshi Sato
- Department of Pediatrics, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yasuyoshi Takahashi
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Showa University School of Medicine, Tokyo 142-8555, Japan
| | - Tomonobu Hasegawa
- Department of Pediatrics, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Satoshi Narumi
- Department of Pediatrics, Keio University School of Medicine, Tokyo 160-8582, Japan
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan
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Golshan M, Hatef A, Kazori N, Socha M, Sokołowska-Mikołajczyk M, Habibi HR, Linhart O, Alavi SMH. A chronic exposure to bisphenol A reduces sperm quality in goldfish associated with increases in kiss2, gpr54, and gnrh3 mRNA and circulatory LH levels at environmentally relevant concentrations. Comp Biochem Physiol C Toxicol Pharmacol 2022; 257:109342. [PMID: 35417786 DOI: 10.1016/j.cbpc.2022.109342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 11/17/2022]
Abstract
The bisphenol A (BPA)-disrupted reproductive functions have been demonstrated in male animals. In fish, it has been shown that environmentally relevant concentrations of BPA decrease sperm quality associated with inhibition of androgen biosynthesis. However, BPA effects on neuroendocrine regulation of reproduction to affect testicular functions are largely unknown. In the present study, reproductive functions of hypothalamus and pituitary were studied in mature male goldfish exposed to nominal 0.2, 2.0 and 20.0 μg/L BPA. At 90 d of exposure, sperm volume, velocity, and density and motility were decreased in goldfish exposed to 0.2, 2.0, and 20.0 μg/L BPA, respectively (p < 0.05). At 30 d of exposure, there were no significant changes in circulatory LH levels and mRNA transcripts of kiss1, Kiss2, gpr54, and gnrh3. At 90 d of exposure, circulatory LH levels showed trends toward increases in BPA exposed goldfish, which was significant in those exposed to 2.0 μg/L (P < 0.05). At this time, Kiss2, gpr54, and gnrh3 mRNA levels were increased in goldfish exposed to any concentrations of BPA (p < 0.05). This study shows that BPA-diminished sperm quality was accompanied by an increase in circulatory LH levels associated with increases in mRNA transcripts of upstream neuroendocrine regulators of reproduction in goldfish. Further, this is the first study to report circulatory levels of LH in fish exposed to BPA.
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Affiliation(s)
- Mahdi Golshan
- Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, 133-15745 Tehran, Iran
| | - Azadeh Hatef
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B3, Canada
| | - Negar Kazori
- School of Biology, College of Science, University of Tehran, 14155-6455 Tehran, Iran
| | - Magdalena Socha
- Faculty of Animal Sciences, University of Agriculture in Kraków, Kraków 30-059, Poland
| | | | - Hamid R Habibi
- Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Otomar Linhart
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany 389 25, Czech Republic
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Sun A, Yan X, Sun J, Tian Z, Wang W, Hu H. Presence of GnRH3 in sturgeon and the roles of GnRH1 and GnRH2 on the regulation of LH/FSH in mature female sterlet Acipenser ruthenus in vitro. Gen Comp Endocrinol 2022; 323-324:114026. [PMID: 35395226 DOI: 10.1016/j.ygcen.2022.114026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 03/08/2022] [Accepted: 03/11/2022] [Indexed: 02/07/2023]
Abstract
Three forms of gonadotropin-releasing hormones (GnRHs), ArGnRH1, ArGnRH2, and ArGnRH3, were identified in sterlet. Compared with their orthologue, ArGnRH1 and ArGnRH2 have conserved core decapeptide but show low identity in the signal peptide and the rest of the sequences. The existence of the GnRH3 paralogue of sturgeon was predicted for the first time with TBLASTN by using the amino acid sequences of catshark and whale shark GnRH3 precursor as queries against the whole genome and transcript data of sterlet. The predicted ArGnRH3 cDNA sequence was composed of three exons containing all the elements of the GnRH family. The successful molecular cloning of GnRH3 from sterlets verified its expression in the brain of sturgeons. The analysis of the ArGnRH3 amino acid sequence revealed a completely conserved decapeptide sequence that shows 100% identity with the sequence of teleosts and differs in one amino acid with that of the cartilaginous fish (catshark and whale shark) at the 5th position. The structure of the phylogenetic tree showed that a total of 52 vertebrate GnRH sequences were clustered into three main clades corresponding to GnRH1, GnRH2, and GnRH3. The ArGnRH3 sequence is the oldest GnRH3 identified in teleosts. The tissue distribution analysis showed that ArGnRH1 was expressed in all the 13 examined tissues of females and in most of the tested tissues of male fish, with the highest expression in the pituitary and hypothalamus. ArGnRH2 is only expressed in the pituitary, hypothalamus, and gonads of both female and male sterlets. ArGnRH3 mRNA could be detected in the pituitary, hypothalamus, and gonad in both female and male fish. It is also present in the spleen, head kidney, and gill in female fish and in kidney and heart in male fish. However, the ArGnRH3 only showed weak expression in all the positive tissues. ArGnRH1 and ArGnRH2 active decapeptides were synthesized to investigate their roles on the regulation of LH/FSH using a mixed brain cell line from a sexually mature female sterlet. The results showed that ArGnRH1 and ArGnRH2 exerted different effects on the gene expression and release of gonadotropins. ArGnRH1 promoted the expression of fshβ significantly around 48 h, and the expression was suppressed when the treatment time was extended to 72 h. ArGnRH1 had no significant effects on the level of either mRNA or secreted lh in any of the tested treatment length or concentrations. Moreover, ArGnRH1 did not stimulate the activity of gonadotropins in the maturation stage of female sturgeons. ArGnRH2 promoted the expression of fshβ at 24 h and 48 h and increased mRNA level of lhβ at 6 h and 48 h, accompanied by the significant secretion of LH at 72 h, although the high mRNA level of fsh did not correlate with the secretion of FSH in ArGnRH2-treated groups. In conclusion, ArGnRH2 plays an important role in the maturation stage of female sterlets. Therefore, ArGnRH2 has the potential to induce ovulation and spermiation in sturgeons.
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Affiliation(s)
- Ai Sun
- National Freshwater Fisheries Engineering Technology Research Center (Beijing) & Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fishery Biotechnology (No. BZ0301), Beijing 100068, China
| | - Xiaoyu Yan
- National Freshwater Fisheries Engineering Technology Research Center (Beijing) & Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fishery Biotechnology (No. BZ0301), Beijing 100068, China
| | - Jing Sun
- National Freshwater Fisheries Engineering Technology Research Center (Beijing) & Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fishery Biotechnology (No. BZ0301), Beijing 100068, China; Dalian Ocean University, Dalian 116023, China
| | - Zhaohui Tian
- National Freshwater Fisheries Engineering Technology Research Center (Beijing) & Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fishery Biotechnology (No. BZ0301), Beijing 100068, China
| | - Wei Wang
- National Freshwater Fisheries Engineering Technology Research Center (Beijing) & Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fishery Biotechnology (No. BZ0301), Beijing 100068, China
| | - Hongxia Hu
- National Freshwater Fisheries Engineering Technology Research Center (Beijing) & Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Fishery Biotechnology (No. BZ0301), Beijing 100068, China.
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Semaan SJ, Kauffman AS. Developmental sex differences in the peri-pubertal pattern of hypothalamic reproductive gene expression, including Kiss1 and Tac2, may contribute to sex differences in puberty onset. Mol Cell Endocrinol 2022; 551:111654. [PMID: 35469849 PMCID: PMC9889105 DOI: 10.1016/j.mce.2022.111654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 02/03/2023]
Abstract
The mechanisms regulating puberty still remain elusive, as do the underlying causes for sex differences in puberty onset (girls before boys) and pubertal disorders. Neuroendocrine puberty onset is signified by increased pulsatile GnRH secretion, yet how and when various upstream reproductive neural circuits change developmentally to govern this process is poorly understood. We previously reported day-by-day peri-pubertal increases (Kiss1, Tac2) or decreases (Rfrp) in hypothalamic gene expression of female mice, with several brain mRNA changes preceding external pubertal markers. However, similar pubertal measures in males were not previously reported. Here, to identify possible neural sex differences underlying sex differences in puberty onset, we analyzed peri-pubertal males and directly compared them with female littermates. Kiss1 expression in male mice increased over the peri-pubertal period in both the AVPV and ARC nuclei but with lower levels than in females at several ages. Likewise, Tac2 expression in the male ARC increased between juvenile and older peri-pubertal stages but with levels lower than females at most ages. By contrast, both DMN Rfrp expressionand Rfrp neuronal activation strongly decreased in males between juvenile and peri-pubertal stages, but with similar levels as females. Neither ARC KNDy neuronal activation nor Kiss1r expression in GnRH neurons differed between males and females or changed with age. These findings delineate several peri-pubertal changes in neural populations in developing males, with notable sex differences in kisspeptin and NKB neuron developmental patterns. Whether these peri-pubertal hypothalamic sex differences underlie sex differences in puberty onset deserves future investigation.
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Affiliation(s)
- Sheila J Semaan
- Department of OBGYN and Reproductive Sciences, University of California San Diego, La Jolla, CA, USA
| | - Alexander S Kauffman
- Department of OBGYN and Reproductive Sciences, University of California San Diego, La Jolla, CA, USA.
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Okada H, Kanasaki H, Tumurbaatar T, Tumurgan Z, Oride A, Kyo S. Hyperandrogenism induces proportional changes in the expression of Kiss-1, Tac2, and DynA in hypothalamic KNDy neurons. Reprod Biol Endocrinol 2022; 20:91. [PMID: 35729637 PMCID: PMC9210811 DOI: 10.1186/s12958-022-00963-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 06/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Kisspeptin released from Kiss-1 neurons in the hypothalamus plays an essential role in the control of the hypothalamic-pituitary-gonadal axis by regulating the release of gonadotropin-releasing hormone (GnRH). In this study, we examined how androgen supplementation affects the characteristics of Kiss-1 neurons. METHODS We used a Kiss-1-expressing mHypoA-55 cell model that originated from the arcuate nucleus (ARC) of the mouse hypothalamus. These cells are KNDy neurons that co-express neurokinin B (NKB) and dynorphin A (DynA). We stimulated these cells with androgens and examined them. We also examined the ARC region of the hypothalamus in ovary-intact female rats after supplementation with androgens. RESULTS Stimulation of mHypoA-55 cells with 100 nM testosterone significantly increased Kiss-1 gene expression by 3.20 ± 0.44-fold; testosterone also increased kisspeptin protein expression. The expression of Tac3, the gene encoding NKB, was also increased by 2.69 ± 0.64-fold following stimulation of mHypoA-55 cells with 100 nM testosterone. DynA gene expression in these cells was unchanged by testosterone stimulation, but it was significantly reduced at the protein level. Dihydrotestosterone (DHT) had a similar effect to testosterone in mHypoA-55 cells; kisspeptin and NKB protein expression was significantly increased by DHT, whereas it significantly reduced DynA expression. In ovary-intact female rats, DTH administration significantly increased the gene expression of Kiss-1 and Tac3, but not DynA, in the arcuate nucleus. Exogenous NKB and DynA stimulation failed to modulate Kiss-1 gene expression in mHypoA-55 cells. Unlike androgen stimulation, prolactin stimulation did not modulate kisspeptin, NKB, or DynA protein expression in these cells. CONCLUSIONS Our observations imply that hyperandrogenemia affects KNDy neurons and changes their neuronal characteristics by increasing kisspeptin and NKB levels and decreasing DynA levels. These changes might cause dysfunction of the hypothalamic-pituitary-gonadal axis.
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Affiliation(s)
- Hiroe Okada
- Department of Obstetrics and Gynecology, School of Medicine, Shimane University, 89-1 Enya Cho, Izumo, Shimane, 693-8501, Japan
| | - Haruhiko Kanasaki
- Department of Obstetrics and Gynecology, School of Medicine, Shimane University, 89-1 Enya Cho, Izumo, Shimane, 693-8501, Japan.
| | - Tuvshintugs Tumurbaatar
- Department of Obstetrics and Gynecology, School of Medicine, Shimane University, 89-1 Enya Cho, Izumo, Shimane, 693-8501, Japan
| | - Zolzaya Tumurgan
- Department of Obstetrics and Gynecology, School of Medicine, Shimane University, 89-1 Enya Cho, Izumo, Shimane, 693-8501, Japan
| | - Aki Oride
- Department of Obstetrics and Gynecology, School of Medicine, Shimane University, 89-1 Enya Cho, Izumo, Shimane, 693-8501, Japan
| | - Satoru Kyo
- Department of Obstetrics and Gynecology, School of Medicine, Shimane University, 89-1 Enya Cho, Izumo, Shimane, 693-8501, Japan
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