1
|
Zhuang XJ, Feng X, Tang WH, Zhu JL, Li M, Li JS, Zheng XY, Li R, Liu P, Qiao J. FAM9B serves as a novel meiosis-related protein localized in meiotic chromosome cores and is associated with human gametogenesis. PLoS One 2021; 16:e0257248. [PMID: 34507348 PMCID: PMC8432983 DOI: 10.1371/journal.pone.0257248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 08/26/2021] [Indexed: 01/10/2023] Open
Abstract
Meiosis is a complex process involving the expression and interaction of numerous genes in a series of highly orchestrated molecular events. Fam9b localized in Xp22.3 has been found to be expressed in testes. However, FAM9B expression, localization, and its role in meiosis have not been previously reported. In this study, FAM9B expression was evaluated in the human testes and ovaries by RT-PCR, qPCR, and western blotting. FAM9B was found in the nuclei of primary spermatocytes in testes and specifically localized in the synaptonemal complex (SC) region of spermatocytes. FAM9B was also evident in the follicle cell nuclei and diffusely dispersed in the granular cell cytoplasm. FAM9B was partly co-localized with SYCP3, which is essential for both formation and maintenance of lateral SC elements. In addition, FAM9B had a similar distribution pattern and co-localization as γH2AX, which is a novel biomarker for DNA double-strand breaks during meiosis. All results indicate that FAM9B is a novel meiosis-associated protein that is co-localized with SYCP3 and γH2AX and may play an important role in SC formation and DNA recombination during meiosis. These findings offer a new perspective for understanding the molecular mechanisms involved in meiosis of human gametogenesis.
Collapse
Affiliation(s)
- Xin-jie Zhuang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- * E-mail: (PL); (XJZ)
| | - Xue Feng
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
| | - Wen-hao Tang
- Department of Urology, The Third Hospital of Peking University, Beijing, China
| | - Jin-liang Zhu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
| | - Ming Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
| | - Jun-sheng Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
| | - Xiao-ying Zheng
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
| | - Rong Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
| | - Ping Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- * E-mail: (PL); (XJZ)
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
- Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Haidian District, Beijing, PR China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Haidian District, Beijing, PR China
- National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Haidian District, Beijing, PR China
| |
Collapse
|
2
|
Ooi SK, Jiang H, Kang Y, Allard P. Examining the Developmental Trajectory of an in Vitro Model of Mouse Primordial Germ Cells following Exposure to Environmentally Relevant Bisphenol A Levels. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:97013. [PMID: 34585602 PMCID: PMC8480152 DOI: 10.1289/ehp8196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Animal-based studies indicate that bisphenol A (BPA) exposure is detrimental to reproductive health, but its impact on the earliest stages of germ cell development remains poorly defined. OBJECTIVES Using a murine in vitro model of early germ cell specification and differentiation, we sought to assess whether exposure to low levels of BPA prior to formation of primordial germ cells (PGCs) alters their differentiation trajectory and unique molecular program. METHODS We used an established method of in vitro differentiation of mouse embryonic stem cells (ESCs) into epiblast-like cells (EpiLCs) followed by PGC-like cells (PGCLCs), which together recapitulate defined stages of early germ cell development. Cellular consequences were determined using hemocytometer-based cell counting, fixation, and intracellular staining, followed by flow cytometry/fluorescence-activated cell sorting (FACS) of cells exposed to increasing concentrations (range: 1 nM-10 μM) of BPA. To interrogate and characterize gene expression differences resulting from BPA exposure, we also generated RNA-seq libraries from RNA extracted from FACS-purified PGCLCs and performed transcriptome analysis using bioinformatics-based approaches. RESULTS Exposure of EpiLCs to BPA resulted in higher numbers of cells that were associated with a higher proportion of cells in S-phase as well as a lower proportion undergoing apoptosis; this difference occurred in a concentration-dependent manner. Exposure also resulted in a greater fraction of EpiLCs showing signs of DNA damage. Remarkably, EpiLC exposure did not negatively affect PGC specification and resulted in a concentration-dependent effect on PGCLC proliferation in XX but not XY cells. PGCLC transcriptome analysis revealed an aberrant program with significant deregulation of X-linked genes and retrotransposon expression. Differential gene expression analysis also revealed the deregulation of genes associated with lipid metabolism as well as deregulated expression of genes associated with later stages of gametogenesis. CONCLUSIONS To the best of our knowledge our findings represent the first characterization of the consequences of early BPA exposure on a model of mammalian PGC development, highlighting altered cell behavior, altered underlying pathways, and altered molecular processes. https://doi.org/10.1289/EHP8196.
Collapse
Affiliation(s)
- Steen K.T. Ooi
- UCLA Institute for Society & Genetics, University of California, Los Angeles, Los Angeles, California, USA
| | - Hui Jiang
- UCLA Institute for Society & Genetics, University of California, Los Angeles, Los Angeles, California, USA
| | - Yanyuan Kang
- UCLA Institute for Society & Genetics, University of California, Los Angeles, Los Angeles, California, USA
| | - Patrick Allard
- UCLA Institute for Society & Genetics, University of California, Los Angeles, Los Angeles, California, USA
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California, USA
| |
Collapse
|
3
|
Javadi A, Mokhtari S, Moraveji SF, Sayahpour FA, Farzaneh M, Gourabi H, Esfandiari F. Short time exposure to low concentration of zinc oxide nanoparticles up-regulates self-renewal and spermatogenesis-related gene expression. Int J Biochem Cell Biol 2020; 127:105822. [PMID: 32771442 DOI: 10.1016/j.biocel.2020.105822] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/21/2020] [Accepted: 07/31/2020] [Indexed: 12/16/2022]
Abstract
Extensive application of zinc oxide (ZnO) nanoparticles (NPs) in everyday life results in increased exposure to these NPs. Spermatogonial stem cells (SSCs) guarantee sperm production throughout the male reproductive life by providing a balance between self-renewal and differentiation. We used an in vitro platform to investigate the ZnO NPs effects on SSCs. We successfully synthesized ZnO NPs. In order to investigate these NPs, we isolated SSCs from mouse testes and cultured them in vitro. Our results confirmed the uptake of ZnO NPs by the cultured SSCs. We observed a dose- and time-dependent decrease in SSC viability. Both spherical and nanosheet ZnO NPs had the same cytotoxic effects on the SSCs, irrespective of their shapes. Moreover, we have shown that short time (one day) exposure of SSCs to a low concentration of ZnO NPs (10 μg/mL) promoted expressions of specific genes (Plzf, Gfr α1 and Bcl6b) for SSC self-renewal and differentiation genes (Vasa, Dazl, C-kit and Sycp3) expressed by spermatogonia during spermatogenesis. Our study provides the first insight into ZnO NPs function in SSCs and suggests a new function for ZnO NPs in the male reproductive system. We demonstrated that ZnO NPs might promote spermatogenesis via upregulation of gene expression related to SSC self-renewal and differentiation at low concentrations. Additional research should clarify the possible effect of ZnO NPs on the SSC genome and its effects on human SSCs.
Collapse
Affiliation(s)
- Azam Javadi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Genetics, Faculty of Basic Science and Advanced Technologies, University of Science and Culture, Tehran, Iran
| | - Saadat Mokhtari
- Department of Physics, Shahid Beheshti University, Tehran, Iran
| | - Seyedeh-Faezeh Moraveji
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Forough-Azam Sayahpour
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maryam Farzaneh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Molecular and Cellular Biology, Faculty of Basic Science and Advanced Technologies, University of Science and Culture, Tehran, Iran
| | - Hamid Gourabi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
| | - Fereshteh Esfandiari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| |
Collapse
|
4
|
Tang W, Zhu Y, Qin W, Zhang H, Zhang H, Lin H, Zhen X, Zhuang X, Tang Y, Jiang H. Ran-binding protein 3 is associated with human spermatogenesis and male infertility. Andrologia 2019; 52:e13446. [PMID: 31833110 DOI: 10.1111/and.13446] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/01/2019] [Accepted: 09/05/2019] [Indexed: 11/29/2022] Open
Abstract
Ran-binding protein 3 (RanBP3) is a Ran-interacting protein, which participates in the Ran GTPase system in cancer cell biology. However, the expression pattern and physiological role of RanBP3 remain largely unknown. In this study, we found that RanBP3 was expressed in human testes and localised to spermatogonium and spermatocyte of germ cells. In subcellular structure, its localisation is in the nucleus and cytoplasm. Interestingly, compared with normal groups, RanBP3 expression was lower in groups of patients with Maturation Arrest (MA) and Sertoli cell-only syndrome (SCO) when considered by the Johnson Score. RanBP3 expression in the MA group and SCO groups was dramatically lower than that in the normal control group. Studies have shown that RanBP3, which is one of the helper factors of Ran, is mainly participate in the nucleocytoplasmic transport of cells. RanBP3 helps Ran to achieve some functions such as nucleocytoplasmic transport, spindle assembly during mitosis and nuclear assembly after mitosis. Consequent changes in the expression of RanBP3 may associate with human spermatogenesis disorders and male infertility. The identification and characterisation of RanBP3 enhances our understanding of the molecular mechanisms underpinning its function in human spermatogenesis and male infertility.
Collapse
Affiliation(s)
- Wenhao Tang
- Department of Urology, Peking University Third Hospital, Beijing, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China.,Department of Andrology, Peking University Third Hospital, Beijing, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing, China
| | - Yutian Zhu
- Department of Urology, Peking University Third Hospital, Beijing, China.,Department of Andrology, Peking University Third Hospital, Beijing, China
| | - Weibing Qin
- Key Laboratory of Male Reproductive and Genetics, National Health and Family Planning Commission (Family Planning Research Institute of Guangdong Province), Guangzhou, China
| | - Haitao Zhang
- Department of Urology, Peking University Third Hospital, Beijing, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China.,Department of Andrology, Peking University Third Hospital, Beijing, China
| | - Hongliang Zhang
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China.,Department of Andrology, Peking University Third Hospital, Beijing, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing, China
| | - Haocheng Lin
- Department of Urology, Peking University Third Hospital, Beijing, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China.,Department of Andrology, Peking University Third Hospital, Beijing, China
| | - Xiumei Zhen
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Ministry of Education, Peking University Third Hospital, Beijing, China
| | - Xinjie Zhuang
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China.,Key Laboratory of Assisted Reproduction, Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Ministry of Education, Peking University Third Hospital, Beijing, China
| | - Yunge Tang
- Key Laboratory of Male Reproductive and Genetics, National Health and Family Planning Commission (Family Planning Research Institute of Guangdong Province), Guangzhou, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China.,Department of Andrology, Peking University Third Hospital, Beijing, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing, China
| |
Collapse
|
5
|
Molecular Cloning and Characterization of SYCP3 and TSEG2 Genes in the Testicles of Sexually Mature and Immature Yak. Genes (Basel) 2019; 10:genes10110867. [PMID: 31671664 PMCID: PMC6896015 DOI: 10.3390/genes10110867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/23/2019] [Accepted: 10/29/2019] [Indexed: 11/17/2022] Open
Abstract
Testis-specific genes play an essential part in the centromere union during meiosis in male germ cells, spermatogenesis, and in fertility. Previously, there was no research report available on the expression pattern of SYCP3 and TSEG2 genes in different ages of yaks. Therefore, the current research compared the expression profiling of SYCP3 and TSEG2 genes in testes of yaks. The expression pattern of SYCP3 and TSEG2 mRNA was investigated using qPCR, semi-quantitative PCR, western blot, immunohistochemistry, and molecular bioinformatics. Our findings displayed that SYCP3 and TSEG2 genes were prominently expressed in the testicles of yaks as compared to other organs. On the other hand, the protein encoded by yak SYCP3 contains Cor1/Xlr/Xmr conserved regions, while the protein encoded by yak TSEG2 contains synaptonemal complex central element protein 3. Additionally, multiple alignments sequences indicated that proteins encoded by Datong yak SYCP3 and TSEG2 were highly conserved among mammals. Moreover, western blot analysis specified that the molecular mass of SYCP3 protein was 34-kDa and TSEG2 protein 90-kDa in the yak. Furthermore, the results of immunohistochemistry also revealed the prominent expression of these proteins in the testis of mature yaks, which indicated that SYCP3 and TSEG2 might be essential for spermatogenesis, induction of central element assembly, and homologous recombination.
Collapse
|
6
|
Christou-Kent M, Kherraf ZE, Amiri-Yekta A, Le Blévec E, Karaouzène T, Conne B, Escoffier J, Assou S, Guttin A, Lambert E, Martinez G, Boguenet M, Fourati Ben Mustapha S, Cedrin Durnerin I, Halouani L, Marrakchi O, Makni M, Latrous H, Kharouf M, Coutton C, Thierry-Mieg N, Nef S, Bottari SP, Zouari R, Issartel JP, Ray PF, Arnoult C. PATL2 is a key actor of oocyte maturation whose invalidation causes infertility in women and mice. EMBO Mol Med 2019; 10:emmm.201708515. [PMID: 29661911 PMCID: PMC5938616 DOI: 10.15252/emmm.201708515] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The genetic causes of oocyte meiotic deficiency (OMD), a form of primary infertility characterised by the production of immature oocytes, remain largely unexplored. Using whole exome sequencing, we found that 26% of a cohort of 23 subjects with OMD harboured the same homozygous nonsense pathogenic mutation in PATL2, a gene encoding a putative RNA‐binding protein. Using Patl2 knockout mice, we confirmed that PATL2 deficiency disturbs oocyte maturation, since oocytes and zygotes exhibit morphological and developmental defects, respectively. PATL2's amphibian orthologue is involved in the regulation of oocyte mRNA as a partner of CPEB. However, Patl2's expression profile throughout oocyte development in mice, alongside colocalisation experiments with Cpeb1, Msy2 and Ddx6 (three oocyte RNA regulators) suggest an original role for Patl2 in mammals. Accordingly, transcriptomic analysis of oocytes from WT and Patl2−/− animals demonstrated that in the absence of Patl2, expression levels of a select number of highly relevant genes involved in oocyte maturation and early embryonic development are deregulated. In conclusion, PATL2 is a novel actor of mammalian oocyte maturation whose invalidation causes OMD in humans.
Collapse
Affiliation(s)
- Marie Christou-Kent
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Zine-Eddine Kherraf
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Amir Amiri-Yekta
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,UM GI-DPI, CHU de Grenoble, Grenoble, France.,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Emilie Le Blévec
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Thomas Karaouzène
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Béatrice Conne
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Jessica Escoffier
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Said Assou
- IRMB, INSERM U1183, CHRU Montpellier, Université Montpellier, Montpellier, France
| | - Audrey Guttin
- Grenoble Neuroscience Institute, INSERM 1216, Université Grenoble Alpes, Grenoble, France
| | - Emeline Lambert
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Guillaume Martinez
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,UM GI-DPI, CHU de Grenoble, Grenoble, France.,UM de Génétique Chromosomique, CHU de Grenoble, Grenoble, France
| | - Magalie Boguenet
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | | | - Isabelle Cedrin Durnerin
- Service de Médecine de la Reproduction, Centre Hospitalier Universitaire Jean Verdier, Assistance Publique - Hôpitaux de Paris, Bondy, France
| | - Lazhar Halouani
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Ouafi Marrakchi
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Mounir Makni
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Habib Latrous
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Mahmoud Kharouf
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Charles Coutton
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,UM GI-DPI, CHU de Grenoble, Grenoble, France.,UM de Génétique Chromosomique, CHU de Grenoble, Grenoble, France
| | | | - Serge Nef
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Serge P Bottari
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Raoudha Zouari
- Polyclinique les Jasmins, Centre d'Aide Médicale à la Procréation, Centre Urbain Nord, Tunis, Tunisia
| | - Jean Paul Issartel
- Grenoble Neuroscience Institute, INSERM 1216, Université Grenoble Alpes, Grenoble, France
| | - Pierre F Ray
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,UM GI-DPI, CHU de Grenoble, Grenoble, France
| | - Christophe Arnoult
- Genetics, Epigenetics and Therapies of Infertility, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| |
Collapse
|
7
|
Tang WH, Zhuang XJ, Song SD, Wu H, Zhang Z, Yang YZ, Zhang HL, Mao JM, Liu DF, Zhao LM, Lin HC, Hong K, Ma LL, Qiao J, Qin W, Tang Y, Jiang H. Ran-binding protein M is associated with human spermatogenesis and oogenesis. Mol Med Rep 2017; 17:2257-2262. [PMID: 29207172 PMCID: PMC5783472 DOI: 10.3892/mmr.2017.8147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 10/06/2017] [Indexed: 12/02/2022] Open
Abstract
The aim of the present study was to explore the underlying mechanism and diagnostic potential of Ran-binding protein M (RanBPM) in human spermatogenesis and oogenesis. RanBPM expression in human testis and ovaries was analysed using polymerase chain reaction (PCR) and western blotting, and immunofluorescence was performed on testis and ovary tissue sections during different developmental stages of spermatogenesis and oogenesis using RanBPM antibodies. Interactions with a variety of functional proteins were also investigated. RanBPM mRNA and protein expression levels were determined by PCR and western blotting in the tissue sections. Results revealed that the mRNA expression levels were highest in the testis followed by the ovary. The RanBPM protein was predominantly localized in the nucleus of germ cells, and the expression levels were highest in pachytene spermatocytes and cells surrounding spermatids in testis tissue. In ovary cells, RanBPM was localized in the nucleus and cytoplasm. In conclusion, the results suggested that RanBPM may have multiple roles in the regulation of germ cell proliferation during human spermatogenesis and oogenesis. This research may provide a novel insight into the underlying molecular mechanism of RanBPM and may have implications for the clinical diagnosis and treatment of human infertility.
Collapse
Affiliation(s)
- Wen-Hao Tang
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Xin-Jie Zhuang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Shi-De Song
- Department of Urology, Rizhao People's Hospital, Rizhao, Shandong 276500, P.R. China
| | - Han Wu
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Zhe Zhang
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Yu-Zhuo Yang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Hong-Liang Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Jia-Ming Mao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - De-Feng Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Lian-Ming Zhao
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Hao-Cheng Lin
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Kai Hong
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Lu-Lin Ma
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Weibing Qin
- Key Laboratory of Male Reproduction and Genetics, National Health and Family Planning Commission, Family Planning Research Institute of Guangdong Province, Guangzhou, Guangdong 510600, P.R. China
| | - Yunge Tang
- Key Laboratory of Male Reproduction and Genetics, National Health and Family Planning Commission, Family Planning Research Institute of Guangdong Province, Guangzhou, Guangdong 510600, P.R. China
| | - Hui Jiang
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| |
Collapse
|
8
|
Zhuang XJ, Tang WH, Feng X, Liu CY, Zhu JL, Yan J, Liu DF, Liu P, Qiao J. Trim27 interacts with Slx2, is associated with meiotic processes during spermatogenesis. Cell Cycle 2016; 15:2576-2584. [PMID: 27612028 DOI: 10.1080/15384101.2016.1174796] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
ABSTARCT Formation of the XY body is believed to prevent recombination between X and Y chromosomes during meiosis. We recently demonstrated that SYCP3-like X-linked 2 (Slx2) could be involved in synaptonemal complex formation as well as XY body maintenance during meiosis. In order to further investigate the role and composition of XY body protein complexes in meiotic processes and spermatogenesis, a yeast 2-hybrid screening was performed, and the tripartite motif protein 27(Trim27) was found to interact with Slx2 and co-localized in the XY body. Trim27 has a tripartite motif (TRIM) consisting of a RING finger, B-box and coiled-coil domains, and is a transcriptional regulator that is expressed in various tumor cell lines. In this study, we showed that Slx2 and Trim27 were highly expressed in meiosis of mouse testis. And the Slx2/Trim27 interaction was confirmed in vivo by co-immunoprecipitation and mammalian 2-hybrid interaction assays. Moreover, cytoimmuno localization experiments revealed that Slx2/Trim27 was co-localized to the XY body of spermatocytes during meiosis, and immunohistochemical results revealed co-localization of Trim27 and γ-H2AX in the XY body of primary spermatocytes in the mouse testis. Trim27 may therefore be a transcriptional regulation protein connecting Slx2 and γ-H2AX, thereby promoting the formation of a more potent XY body protein complex in meiotic processes and spermatogenesis. In conclusion, Trim27 connecting Slx2 may regulate meiotic processes in multiple ways by influencing XY body formation and germ cell proliferation during spermatogenesis.
Collapse
Affiliation(s)
- Xin-Jie Zhuang
- a Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital , Beijing , PR China
| | - Wen-Hao Tang
- b Department of Urology , the Third Hospital of Peking University , Beijing , PR China
| | - Xue Feng
- a Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital , Beijing , PR China
| | - Chang-Yu Liu
- a Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital , Beijing , PR China
| | - Jin-Liang Zhu
- a Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital , Beijing , PR China
| | - Jie Yan
- a Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital , Beijing , PR China
| | - De-Feng Liu
- b Department of Urology , the Third Hospital of Peking University , Beijing , PR China
| | - Ping Liu
- a Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital , Beijing , PR China
| | - Jie Qiao
- a Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital , Beijing , PR China
| |
Collapse
|
9
|
Fraune J, Brochier-Armanet C, Alsheimer M, Volff JN, Schücker K, Benavente R. Evolutionary history of the mammalian synaptonemal complex. Chromosoma 2016; 125:355-60. [PMID: 26968413 DOI: 10.1007/s00412-016-0583-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/03/2016] [Accepted: 03/07/2016] [Indexed: 12/29/2022]
Abstract
The synaptonemal complex (SC), a key structure of meiosis that assembles during prophase I, has been initially described 60 years ago. Since then, the structure has been described in many sexually reproducing organisms. However, the SC protein components were characterized in only few model organisms. Surprisingly, they lacked an apparent evolutionary relationship despite the conserved structural organization of the SC. For better understanding of this obvious discrepancy, the evolutionary history of the SC and its individual components has been investigated in Metazoa in detail. The results are consistent with the notion of a single origin of the metazoan SC and provide evidence for a dynamic evolutionary history of the SC components. In this mini review, we recapitulate and discuss new insights into metazoan SC evolution.
Collapse
Affiliation(s)
- Johanna Fraune
- Department of Cell and Developmental Biology, Biocenter, University of Würzburg, 97074, Würzburg, Germany
| | - Céline Brochier-Armanet
- Université Lyon 1, CNRS, UMR5558, Laboratoire de Biométrie et Biologie Evolutive, 43 bd du 11 novembre 1918, Villeurbanne, 69622, France
| | - Manfred Alsheimer
- Department of Cell and Developmental Biology, Biocenter, University of Würzburg, 97074, Würzburg, Germany
| | - Jean-Nicolas Volff
- Institut de Génomique Fonctionnelle de Lyon, École Normale Supérieure de Lyon, CNRS, Université Lyon 1, Lyon, France
| | - Katharina Schücker
- Department of Cell and Developmental Biology, Biocenter, University of Würzburg, 97074, Würzburg, Germany
| | - Ricardo Benavente
- Department of Cell and Developmental Biology, Biocenter, University of Würzburg, 97074, Würzburg, Germany.
| |
Collapse
|
10
|
Li M, Huang R, Jiang X, Chen Y, Zhang Z, Zhang X, Liang P, Zhan S, Cao S, Songyang Z, Huang J. CRISPR/Cas9 Promotes Functional Study of Testis Specific X-Linked Gene In Vivo. PLoS One 2015; 10:e0143148. [PMID: 26599493 PMCID: PMC4658030 DOI: 10.1371/journal.pone.0143148] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 10/30/2015] [Indexed: 11/18/2022] Open
Abstract
Mammalian spermatogenesis is a highly regulated multistage process of sperm generation. It is hard to uncover the real function of a testis specific gene in vitro since the in vitro model is not yet mature. With the development of the CRISPR/Cas9 (Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR-associated 9) system, we can now rapidly generate knockout mouse models of testis specific genes to study the process of spermatogenesis in vivo. SYCP3-like X-linked 2 (SLX2) is a germ cell specific component, which contains a Cor1 domain and belongs to the XLR (X-linked, lymphocyte regulated) family. Previous studies suggested that SLX2 might play an important role in mouse spermatogenesis based on its subcellular localization and interacting proteins. However, the function of SLX2 in vivo is still elusive. Here, to investigate the functions of SLX2 in spermatogenesis, we disrupted the Slx2 gene by using the CRISPR/Cas9 system. Since Slx2 is a testis specific X-linked gene, we obtained knockout male mice in the first generation and accelerated the study process. Compared with wild-type mice, Slx2 knockout mice have normal testis and epididymis. Histological observation of testes sections showed that Slx2 knockout affected none of the three main stages of spermatogenesis: mitosis, meiosis and spermiogenesis. In addition, we further confirmed that disruption of Slx2 did not affect the number of spermatogonial stem cells, meiosis progression or XY body formation by immunofluorescence analysis. As spermatogenesis was normal in Slx2 knockout mice, these mice were fertile. Taken together, we showed that Slx2 itself is not an essential gene for mouse spermatogenesis and CRISPR/Cas9 technique could speed up the functional study of testis specific X-linked gene in vivo.
Collapse
Affiliation(s)
- Minyan Li
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Rui Huang
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xue Jiang
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yuxi Chen
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhen Zhang
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiya Zhang
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Puping Liang
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shaoquan Zhan
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Reproductive Medicine of Guangdong Province, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shanbo Cao
- Key Laboratory of Reproductive Medicine of Guangdong Province, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhou Songyang
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Junjiu Huang
- Guangdong Province Key Laboratory of Reproductive Medicine, School of Life Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Institute of Healthy Aging Research and SYSU-BCM Joint Research Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
11
|
Mishra B, Park JY, Wilson K, Jo M. X-linked lymphocyte regulated gene 5c-like (Xlr5c-like) is a novel target of progesterone action in granulosa cells of periovulatory rat ovaries. Mol Cell Endocrinol 2015; 412:226-38. [PMID: 26004213 PMCID: PMC4516606 DOI: 10.1016/j.mce.2015.05.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 05/07/2015] [Accepted: 05/07/2015] [Indexed: 11/20/2022]
Abstract
Progesterone (P4), acting through its nuclear receptor (PGR), plays an essential role in ovulation by mediating the expression of genes involved in ovulation and/or luteal formation. To identify ovulatory specific PGR-regulated genes, a preliminary microarray analysis was performed using rat granulosa cells treated with hCG ± RU486 (PGR antagonist). The transcript most highly down-regulated by RU486 was an EST (expressed sequence tag) sequence (gb: BI289578.1) that matches with predicted sequence for Xlr5c-like mRNA. Since nothing is known about Xlr5c-like, we first characterized the expression pattern of Xlr5c-like mRNA in the rat ovary. The level of mRNA for Xlr5c-like is transiently up-regulated in granulosa cells of periovulatory follicles after hCG stimulation in PMSG-primed rat ovaries. The transient induction of Xlr5c-like mRNA was mimicked by hCG treatment in cultured granulosa cells from preovulatory ovaries. We further demonstrated that the LH-activated PKA, MEK, PI3K, and p38 signaling is involved in the increase in Xlr5c-like mRNA. The increase in Xlr5c-like mRNA was abolished by RU486. The inhibitory effect of RU486 was reversed by MPA (synthetic progestin), but not by dexamethasone (synthetic glucocorticoid). Furthermore, mutation of SP1/SP3 and PGR response element sites in the promoter region of Xlr5c-like decreased Xlr5c-like reporter activity. RU486 also inhibited Xlr5c-like reporter activity. ChIP assay verified the binding of PGR and SP3 to the Xlr5c-like promoter in periovulatory granulosa cells. Functionally, siRNA-mediated Xlr5c-like knockdown in granulosa cell cultures resulted in reduced levels of mRNA for Snap25, Cxcr4, and Adamts1. Recombinant Xlr5c-like protein expressed using an adenoviral approach was localized predominantly to the nucleus and to a lesser extent to the cytoplasm of rat granulosa cells. In conclusion, this is the first report showing the spatiotemporally regulated expression of Xlr5c-like mRNA by hCG in rat periovulatory ovaries. P4/PGR mediates the LH-induced increase in Xlr5c-like mRNA. In turn, Xlr5c-like is involved in regulating the expression of specific ovulatory genes such as Snap25, Cxcr4, and Adamts1, possibly acting in the nucleus of periovulatory granulosa cells.
Collapse
Affiliation(s)
- Birendra Mishra
- Department of Obstetrics and Gynecology, Chandler Medical Center, University of Kentucky, Lexington, KY 40536-0298, USA
| | - Ji Yeon Park
- Department of Obstetrics and Gynecology, Chandler Medical Center, University of Kentucky, Lexington, KY 40536-0298, USA
| | - Kalin Wilson
- Department of Obstetrics and Gynecology, Chandler Medical Center, University of Kentucky, Lexington, KY 40536-0298, USA
| | - Misung Jo
- Department of Obstetrics and Gynecology, Chandler Medical Center, University of Kentucky, Lexington, KY 40536-0298, USA.
| |
Collapse
|
12
|
Nickkholgh B, Korver CM, van Daalen SKM, van Pelt AMM, Repping S. AZFc deletions do not affect the function of human spermatogonia in vitro. Mol Hum Reprod 2015; 21:553-62. [PMID: 25901025 PMCID: PMC5009458 DOI: 10.1093/molehr/gav022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/13/2015] [Accepted: 04/07/2015] [Indexed: 01/12/2023] Open
Abstract
Azoospermic factor c (AZFc) deletions are the underlying cause in 10% of azoo- or severe oligozoospermia. Through extensive molecular analysis the precise genetic content of the AZFc region and the origin of its deletion have been determined. However, little is known about the effect of AZFc deletions on the functionality of germ cells at various developmental steps. The presence of normal, fertilization-competent sperm in the ejaculate and/or testis of the majority of men with AZFc deletions suggests that the process of differentiation from spermatogonial stem cells (SSCs) to mature spermatozoa can take place in the absence of the AZFc region. To determine the functionality of AZFc-deleted spermatogonia, we compared in vitro propagated spermatogonia from six men with complete AZFc deletions with spermatogonia from three normozoospermic controls. We found that spermatogonia of AZFc-deleted men behave similar to controls during culture. Short-term (18 days) and long-term (48 days) culture of AZFc-deleted spermatogonia showed the same characteristics as non-deleted spermatogonia. This similarity was revealed by the same number of passages, the same germ cell clusters formation and similar level of genes expression of spermatogonial markers including ubiquitin carboxyl-terminal esterase L1 (UCHL1), zinc finger and BTB domain containing 16 (ZBTB16) and glial cell line-derived neurotrophic factor family receptor alpha 1 (GFRA1), as well as germ cell differentiation markers including signal transducer and activator of transcription 3 (STAT3), spermatogenesis and oogenesis specific basic helix-loophelix 2 (SOHLH2), v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog (KIT) and synaptonemal complex protein 3 (SYCP3). The only exception was melanoma antigen family A4 (MAGEA4) which showed significantly lower expression in AZFc-deleted samples than controls in short-term culture while in long-term culture it was hardly detected in both AZFc-deleted and control spermatogonia. These data suggest that, at least in vitro, spermatogonia of AZFc-deleted men are functionally similar to spermatogonia from non-deleted men. Potentially, this enables treatment of men with AZFc deletions by propagating their SSCs in vitro and autotransplanting these SSCs back to the testes to increase sperm counts and restore fertility.
Collapse
Affiliation(s)
- B Nickkholgh
- Center for Reproductive Medicine, Women's and Children's Hospital, Academic Medical Center, University of Amsterdam, Amsterdam 1105AZ, The Netherlands Present address: Wake Forest Institute for Regenerative Medicine, Wake Forest University school of Medicine, Winston-Salem, 27101 NC, USA
| | - C M Korver
- Center for Reproductive Medicine, Women's and Children's Hospital, Academic Medical Center, University of Amsterdam, Amsterdam 1105AZ, The Netherlands
| | - S K M van Daalen
- Center for Reproductive Medicine, Women's and Children's Hospital, Academic Medical Center, University of Amsterdam, Amsterdam 1105AZ, The Netherlands
| | - A M M van Pelt
- Center for Reproductive Medicine, Women's and Children's Hospital, Academic Medical Center, University of Amsterdam, Amsterdam 1105AZ, The Netherlands
| | - S Repping
- Center for Reproductive Medicine, Women's and Children's Hospital, Academic Medical Center, University of Amsterdam, Amsterdam 1105AZ, The Netherlands
| |
Collapse
|
13
|
Identification and Characterization of Xlr5c as a Novel Nuclear Localization Protein in Mouse Germ Cells. PLoS One 2015; 10:e0130087. [PMID: 26075718 PMCID: PMC4468186 DOI: 10.1371/journal.pone.0130087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 05/15/2015] [Indexed: 11/19/2022] Open
Abstract
Background Spermatogenesis is the complex process by which diploid stem cells generate haploid germ cells in gamete production. Members of the Xlr (X-chromosome linked, lymphocyte regulated) superfamily play essential roles in spermatogenesis. The expression, localization and role in spermatogenesis of one such member, Xlr5c, has not been reported previously. Methodology/Principal Findings Xlr5c mRNA and protein levels in murine testes and other tissues were investigated using RT-PCR and Western blotting. Xlr5c was abundantly transcribed in mouse testes, particularly during the early stages of spermatogenesis and throughout prophase I in the nuclei of spermatocytes. Xlr5c was specifically localized at synaptonemal complexes(SCs) region in preleptotene and pachytene spermatocytes, as was the homologous Xlr protein Sycp3. Conclusions/Significance These results suggest that Xlr5c was abundantly transcribed in germ cells, localized at SCs region, where it may play a potential role during the early stages of spermatogenesis. Identification and characterization of this novel testis protein may offer a new perspective for understanding of the molecular mechanisms involved in germ cell differentiation.
Collapse
|
14
|
Casey AE, Daish TJ, Grutzner F. Identification and characterisation of synaptonemal complex genes in monotremes. Gene 2015; 567:146-53. [PMID: 25981592 DOI: 10.1016/j.gene.2015.04.089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 04/25/2015] [Accepted: 04/27/2015] [Indexed: 11/26/2022]
Abstract
The platypus and echidna are the only extant species belonging to the clade of monotremata, the most basal mammalian lineage. The platypus is particularly well known for its mix of mammalian and reptilian characteristics and work in recent years has revealed this also extends to the genetic level. Amongst the monotreme specific features is the unique multiple sex chromosome system (5X4Y in the echidna and 5X5Y in the platypus), which forms a chain in meiosis. This raises questions about sex chromosome organisation at meiosis, including whether there has been changes in genes coding for synaptonemal complex proteins which are involved in homologous synapsis. Here we investigate the key structural components of the synaptonemal complex in platypus and echidna, synaptonemal complex proteins 1, 2 and 3 (SYCP1, SYCP2 and SYCP3). SYCP1 and SYCP2 orthologues are present, conserved and expressed in platypus testis. SYCP3 in contrast is highly diverged, but key residues required for self-association are conserved, while those required for tetramer stabilisation and DNA binding are missing. We also discovered a second SYCP3-like gene (SYCP3-like) in the same region. Comparison with the recently published Y-borne SYCP3 amino acid sequences revealed that SYCP3Y is more similar to SYCP3 in other mammals than the monotreme autosomal SYCP3. It is currently unclear if these changes in the SYCP3 gene repertoire are related to meiotic organisation of the extraordinary monotreme sex chromosome system.
Collapse
Affiliation(s)
- Aaron E Casey
- The Robinson Institute, School of Molecular and Biomedical Science, University of Adelaide, Gate 8 Victoria Drive, Adelaide, South Australia 5005, Australia.
| | - Tasman J Daish
- The Robinson Institute, School of Molecular and Biomedical Science, University of Adelaide, Gate 8 Victoria Drive, Adelaide, South Australia 5005, Australia
| | - Frank Grutzner
- The Robinson Institute, School of Molecular and Biomedical Science, University of Adelaide, Gate 8 Victoria Drive, Adelaide, South Australia 5005, Australia
| |
Collapse
|
15
|
You L, Yan K, Zou J, Zhao H, Bertos NR, Park M, Wang E, Yang XJ. The chromatin regulator Brpf1 regulates embryo development and cell proliferation. J Biol Chem 2015; 290:11349-64. [PMID: 25773539 DOI: 10.1074/jbc.m115.643189] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Indexed: 12/22/2022] Open
Abstract
With hundreds of chromatin regulators identified in mammals, an emerging issue is how they modulate biological and pathological processes. BRPF1 (bromodomain- and PHD finger-containing protein 1) is a unique chromatin regulator possessing two PHD fingers, one bromodomain and a PWWP domain for recognizing multiple histone modifications. In addition, it binds to the acetyltransferases MOZ, MORF, and HBO1 (also known as KAT6A, KAT6B, and KAT7, respectively) to promote complex formation, restrict substrate specificity, and enhance enzymatic activity. We have recently showed that ablation of the mouse Brpf1 gene causes embryonic lethality at E9.5. Here we present systematic analyses of the mutant animals and demonstrate that the ablation leads to vascular defects in the placenta, yolk sac, and embryo proper, as well as abnormal neural tube closure. At the cellular level, Brpf1 loss inhibits proliferation of embryonic fibroblasts and hematopoietic progenitors. Molecularly, the loss reduces transcription of a ribosomal protein L10 (Rpl10)-like gene and the cell cycle inhibitor p27, and increases expression of the cell-cycle inhibitor p16 and a novel protein homologous to Scp3, a synaptonemal complex protein critical for chromosome association and embryo survival. These results uncover a crucial role of Brpf1 in controlling mouse embryo development and regulating cellular and gene expression programs.
Collapse
Affiliation(s)
- Linya You
- From the The Rosalind and Morris Goodman Cancer Research Center, Department of Medicine, and
| | - Kezhi Yan
- From the The Rosalind and Morris Goodman Cancer Research Center, Department of Biochemistry, McGill University, Montreal, Quebec H3A 1A3
| | - Jinfeng Zou
- National Research Council Canada, Montreal, Quebec H4P 2R2, and
| | - Hong Zhao
- From the The Rosalind and Morris Goodman Cancer Research Center
| | | | - Morag Park
- From the The Rosalind and Morris Goodman Cancer Research Center, Department of Medicine, and Department of Biochemistry, McGill University, Montreal, Quebec H3A 1A3, McGill University Health Center, Montreal, Quebec H3A 1A3, Canada
| | - Edwin Wang
- National Research Council Canada, Montreal, Quebec H4P 2R2, and
| | - Xiang-Jiao Yang
- From the The Rosalind and Morris Goodman Cancer Research Center, Department of Medicine, and Department of Biochemistry, McGill University, Montreal, Quebec H3A 1A3, McGill University Health Center, Montreal, Quebec H3A 1A3, Canada
| |
Collapse
|
16
|
Zhuang XJ, Shi YQ, Xu B, Chen L, Tang WH, Huang J, Lian Y, Liu P, Qiao J. SLX2 interacting with BLOS2 is differentially expressed during mouse oocyte meiotic maturation. Cell Cycle 2014; 13:2231-7. [PMID: 24870619 DOI: 10.4161/cc.29265] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Gametogenesis is a complex biological process of producing cells for sexual reproduction. Xlr super family members containing a conserved COR1 domain play essential roles in gametogenesis. In the present study, we identified that Slx2, a novel member of Xlr super family, is specifically expressed in the meiotic oocytes, which is demonstrated by western blotting and immunohistochemistry studies. In the first meiotic prophase, SLX2 is unevenly distributed in the nuclei of oocytes, during which phase SLX2 is partly co-localized with SYCP3 in synaptonemal complex and γH2AX in the nucleus of oocytes. Interestingly, the localization of SLX2 was found to be switched into the cytoplasm of oocytes after prometaphase I during oocyte maturation. Furthermore, yeast two-hybrid and coimmunoprecipitation studies demonstrated that SLX2 interacts with BLOS2, which is a novel centrosome-associated protein, and co-localized with γ-Tubulin, which is a protein marker of chromosome segregation in meiosis. These results indicated that SLX2 might get involved in chromosomes segregation during meiosis by interaction with BLOS2. In conclusion, SLX2 might be a novel gametogenesis-related protein that could play multiple roles in regulation of meiotic processes including synaptonemal complex assembly and chromosome segregation.
Collapse
Affiliation(s)
- Xin-Jie Zhuang
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| | - Yu-Qiang Shi
- College of Bio-Engineering; Weifang University; Weifang, PR China
| | - Bo Xu
- Center for Reproductive Medicine; Anhui Provincial Hospital Affiliated to Anhui Medical University; Hefei, PR China
| | - Lei Chen
- Reproductive Medical Centre; First Affiliated Hospital of Zhengzhou University; Zhengzhou, PR China
| | - Wen-Hao Tang
- Department of Urology; the Third Hospital of Peking University; Beijing, PR China
| | - Jin Huang
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| | - Ying Lian
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| | - Ping Liu
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| | - Jie Qiao
- Center for Reproductive Medicine; Department of Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction; Ministry of Education; Peking University Third Hospital; Beijing, PR China
| |
Collapse
|