1
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Wang HY, Liu X, Chen JY, Huang Y, Lu Y, Tan F, Liu Q, Yang M, Li S, Zhang X, Qin Y, Ma W, Yang Y, Meng L, Liu K, Wang Q, Fan G, Nóbrega RH, Liu S, Piferrer F, Shao C. Single-cell-resolution transcriptome map revealed novel genes involved in testicular germ cell progression and somatic cells specification in Chinese tongue sole with sex reversal. SCIENCE CHINA LIFE SCIENCES 2022; 66:1151-1169. [PMID: 36437386 DOI: 10.1007/s11427-021-2236-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/28/2022] [Indexed: 11/29/2022]
Abstract
Female-to-male sex reversals (pseudomales) are common in lower vertebrates and have been found in natural populations, which is a concern under rapid changes in environmental conditions. Pseudomales can exhibit altered spermatogenesis. However, the regulatory mechanisms underlying pseudomale spermatogenesis remain unclear. Here, we characterized spermatogenesis in Chinese tongue sole (Cynoglossus semilaevis), a species with genetic and environmental sex determination, based on a high-resolution single-cell RNA-seq atlas of cells derived from the testes of genotypic males and pseudomales. We identified five germ cell types and six somatic cell types and obtained a single-cell atlas of dynamic changes in gene expression during spermatogenesis in Chinese tongue sole, including alterations in pseudomales. We detected decreased levels of Ca2+ signaling pathway-related genes in spermatogonia, insufficient meiotic initiation in spermatocytes, and a malfunction of somatic niche cells in pseudomales. However, a cluster of CaSR genes and MAPK signaling factors were upregulated in undifferentiated spermatogonia of pseudomales. Additionally, we revealed that Z chromosome-specific genes, such as piwil2, dhx37, and ehmt1, were important for spermatogenesis. These results improve our understanding of reproduction after female-to-male sex-reversal and provide new insights into the adaptability of reproductive strategies in lower vertebrates.
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2
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Mohanty G, Jena SR, Kar S, Samanta L. Paternal factors in recurrent pregnancy loss: an insight through analysis of non-synonymous single-nucleotide polymorphism in human testis-specific chaperone HSPA2 gene. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:62219-62234. [PMID: 34845642 DOI: 10.1007/s11356-021-17799-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
Heat shock protein A2 (HSPA2) is a testis-specific molecular chaperone of the 70 kDa heat shock protein (HSP70) family and reported to play a key role in spermatogenesis as well as in the remodelling of the sperm surface during capacitation. It is established that mice lacking HSPA2 gene are infertile and spermatozoa that fail to interact with the zona pellucida of the oocyte consistently lack HSPA2 protein expression. However, its role in post fertilization events is not fully understood. Owing to the importance of HSPA2 in male reproduction, the present study is undertaken to reveal the association between genetic mutation and phenotypic variation in recurrent pregnancy loss (RPL) patients through an in silico prediction analysis. In this study, we used different computational tools and servers such as SIFT, PolyPhen2, PROVEAN, nsSNPAnalyzer, and SNPs & GO to analyse the functional consequences of the nsSNPs in human HSPA2 gene. The most damaging amino acid variants generated were subjected to I-Mutant 2.0 and ConSurf. Post-translational modifications such as phosphorylation mediated by these deleterious nsSNPs were analysed using NetPhos 2.0, and gene-gene interaction study was conducted using GeneMANIA. Finally, in-depth studies of the nsSNPs were studied through Project HOPE. The findings of the study revealed 18 nsSNPs to be deleterious using a combinatorial bioinformatic approach. Further functional analysis suggests that screening of nsSNP variants of HSPA2 that tend to be conserved and has potential to undergo phosphorylation at critical positions (rs764410231, rs200951589, rs756852956) may be useful for predicting outcome in altered reproductive outcome. The physicochemical alterations and its impact on the structural and functional conformity were determined by Project HOPE. Gene-gene interaction depicts its close association with antioxidant enzyme (SOD1) strongly supporting an inefficient oxidative scavenging regulatory mechanism in the spermatozoa of RPL patients as reported earlier. The present study has thus identified high-risk deleterious nsSNPs of HSPA2 gene and would be beneficial in the diagnosis and prognosis of the paternal effects in RPL patients.
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Affiliation(s)
- Gayatri Mohanty
- Redox Biology & Proteomics Laboratory, Department of Zoology, School of Life Sciences, Ravenshaw University, Cuttack, Odisha, India
- Centre for Excellence in Environment and Public Health, Ravenshaw University, Cuttack, Odisha, India
| | - Soumya Ranjan Jena
- Redox Biology & Proteomics Laboratory, Department of Zoology, School of Life Sciences, Ravenshaw University, Cuttack, Odisha, India
- Centre for Excellence in Environment and Public Health, Ravenshaw University, Cuttack, Odisha, India
| | - Sujata Kar
- Department of Obstetrics & Gynaecology, Kar Clinic and Hospital Pvt. Ltd., Bhubaneswar, Odisha, India
| | - Luna Samanta
- Redox Biology & Proteomics Laboratory, Department of Zoology, School of Life Sciences, Ravenshaw University, Cuttack, Odisha, India.
- Centre for Excellence in Environment and Public Health, Ravenshaw University, Cuttack, Odisha, India.
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3
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Zhuang ZX, Chen SE, Chen CF, Lin EC, Huang SY. Single-nucleotide polymorphisms in genes related to oxidative stress and ion channels in chickens are associated with semen quality and hormonal responses to thermal stress. J Therm Biol 2022; 105:103220. [DOI: 10.1016/j.jtherbio.2022.103220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 01/18/2022] [Accepted: 02/22/2022] [Indexed: 10/19/2022]
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4
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Reina S, Checchetto V. Voltage-Dependent Anion Selective Channel 3: Unraveling Structural and Functional Features of the Least Known Porin Isoform. Front Physiol 2022; 12:784867. [PMID: 35082690 PMCID: PMC8784847 DOI: 10.3389/fphys.2021.784867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/10/2021] [Indexed: 01/31/2023] Open
Abstract
Voltage-dependent anion-selective channels (VDAC) are pore-forming proteins located in the outer mitochondrial membrane. Three isoforms are encoded by separate genes in mammals (VDAC1-3). These proteins play a crucial role in the cell, forming the primary interface between mitochondrial and cellular metabolisms. Research on the role of VDACs in the cell is a rapidly growing field, but the function of VDAC3 remains elusive. The high-sequence similarity between isoforms suggests a similar pore-forming structure. Electrophysiological analyzes revealed that VDAC3 works as a channel; however, its gating and regulation remain debated. A comparison between VDAC3 and VDAC1-2 underlines the presence of a higher number of cysteines in both isoforms 2 and 3. Recent mass spectrometry data demonstrated that the redox state of VDAC3 cysteines is evolutionarily conserved. Accordingly, these residues were always detected as totally reduced or partially oxidized, thus susceptible to disulfide exchange. The deletion of selected cysteines significantly influences the function of the channel. Some cysteine mutants of VDAC3 exhibited distinct kinetic behavior, conductance values and voltage dependence, suggesting that channel activity can be modulated by cysteine reduction/oxidation. These properties point to VDAC3 as a possible marker of redox signaling in the mitochondrial intermembrane space. Here, we summarize our current knowledge about VDAC3 predicted structure, physiological role and regulation, and possible future directions in this research field.
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Affiliation(s)
- Simona Reina
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
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5
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Ma J, Han R, Sun B, Lin J, Deng P, Wang S, Sun S. Differentially expressed microRNA in testicular tissues of hyperuricaemia rats. Andrologia 2021; 53:e14184. [PMID: 34255383 DOI: 10.1111/and.14184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/08/2021] [Accepted: 06/11/2021] [Indexed: 12/21/2022] Open
Abstract
This study is to identify the differentially expressed miRNAs in testicular tissues of rats with hyperuricaemia-induced male infertility. We found that the hyperuricaemia model group had significantly increased serum uric acid, while significantly decreased sperm concentration and motile sperm percentage than normal group (p < .05). A total of 39 differentially expressed miRNAs were identified in the testicular tissues of hyperuricaemia rats compared with the control rats, ten of which were validated by real-time PCR. The target mRNAs of 7 differentially expressed miRNAs (miR-10b-5p, miR-26a-5p, miR-136-5p, miR-151-3p, miR-183-5p, miR-362-3p and miR-509-5p) from 3'-untranslated region binding perspective were enriched in signalling pathways of Wnt, Jak-STAT, mTOR and MAPK. The target mRNAs of 6 differentially expressed miRNAs (miR-136-5p, miR-144-3p, miR-99a-5p, miR-509-5p, miR-451-5p and miR-362-3p) from coding sequence binding perspective were enriched in signalling pathways of Calcium, Notch and MAPK. The functions of miRNAs in testicular tissues of rats with hyperuricaemia were revealed by the differentially expressed miRNAs (miR-183-5p, miR-99a-5p, miR-10b-5p, miR-151-3p, miR-26a-5p, miR-451-5p, miR-362-3p, miR-136-5p, miR-144-3p and miR-509-5p)-mRNAs interaction network. The differentially expressed miRNAs in the testicular tissues of hyperuricaemia rats might shed light on the mechanism of hyperuricaemia-induced male infertility.
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Affiliation(s)
- Jing Ma
- NHC Key Laboratory of Family Planning and Healthy, Hebei Key Laboratory of Reproductive Medicine, Hebei Research Institute for Family Planning Science and Technology, Shijiazhuang, China
| | - Ruiyu Han
- NHC Key Laboratory of Family Planning and Healthy, Hebei Key Laboratory of Reproductive Medicine, Hebei Research Institute for Family Planning Science and Technology, Shijiazhuang, China
| | - Bo Sun
- NHC Key Laboratory of Family Planning and Healthy, Hebei Key Laboratory of Reproductive Medicine, Hebei Research Institute for Family Planning Science and Technology, Shijiazhuang, China.,Department of Biochemistry and Molecular Biology, Key Laboratory of Medical Biotechnology of Hebei Province, Cardiovascular Medical Science Center, Hebei Medical University, Shijiazhuang, China
| | - Jiajie Lin
- Department of Biochemistry and Molecular Biology, Key Laboratory of Medical Biotechnology of Hebei Province, Cardiovascular Medical Science Center, Hebei Medical University, Shijiazhuang, China
| | - Peipei Deng
- NHC Key Laboratory of Family Planning and Healthy, Hebei Key Laboratory of Reproductive Medicine, Hebei Research Institute for Family Planning Science and Technology, Shijiazhuang, China
| | - Shusong Wang
- NHC Key Laboratory of Family Planning and Healthy, Hebei Key Laboratory of Reproductive Medicine, Hebei Research Institute for Family Planning Science and Technology, Shijiazhuang, China.,Department of Biochemistry and Molecular Biology, Key Laboratory of Medical Biotechnology of Hebei Province, Cardiovascular Medical Science Center, Hebei Medical University, Shijiazhuang, China
| | - Shaoguang Sun
- Department of Biochemistry and Molecular Biology, Key Laboratory of Medical Biotechnology of Hebei Province, Cardiovascular Medical Science Center, Hebei Medical University, Shijiazhuang, China
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6
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Komijani M, Momeni HR, Shaykh-Baygloo N, Ghafarizadeh AA, Maleki P, Tahsili MR. Association of Herpes simplex virus I&II infections with rs187084 SNP of TLR9 and male infertility. Andrologia 2021; 53:e14163. [PMID: 34216052 DOI: 10.1111/and.14163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 11/29/2022] Open
Abstract
Since TLR9 recognises unmethylated CpG motifs in viral DNA, its polymorphisms may contribute to the susceptibility to Herpes simplex virus I&II infection. In the present study, to evaluate the role of rs187084 SNP (single nucleotide polymorphism) of TLR9 in Herpes simplex virus I&II infection and male infertility, 103 infertile and 27 fertile blood and semen samples were analysed. We assessed the micro and macro properties of semen specimens and the presence of HSV immunoglobulins. Tetra-primer ARMS PCR was used to detect SNP and to investigate the genotype distribution of TLR9-rs187084 SNPs, and the correlation between polymorphisms of TLR9 gene and male infertility. Moreover, the odds ratio (OR) and 95% confidence intervals were used to estimate the strength of the association. Based on our finding, a significant correlation was observed between HSV infection, agglutination and polymorphism (TT) under dominant (OR = 1.28, 95% CI = 0.94-1.75) and recessive (OR = 0.44, 95% CI = 0.21-0.94) models for the data, which was complied with Hardy-Weinberg equilibrium (HWE) (OR = 2.91, 95% CI = 1.02-8.30). The result showed a significant association between HSV IgM and agglutination in HSV infection (p < .001), and in addition, there were associations between alleles so that rs187084 SNP might be considered as a risk factor for the incidence of HSV infection.
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Affiliation(s)
- Majid Komijani
- Department of Biology, Faculty of Science, Arak University, Arak, Iran
| | - Hamid Reza Momeni
- Department of Biology, Faculty of Science, Arak University, Arak, Iran
| | | | | | - Parisa Maleki
- Department of Biology, Faculty of Science, Arak University, Arak, Iran
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7
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De Pinto V. Renaissance of VDAC: New Insights on a Protein Family at the Interface between Mitochondria and Cytosol. Biomolecules 2021; 11:biom11010107. [PMID: 33467485 PMCID: PMC7831034 DOI: 10.3390/biom11010107] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/10/2021] [Accepted: 01/12/2021] [Indexed: 12/14/2022] Open
Abstract
It has become impossible to review all the existing literature on Voltage-Dependent Anion selective Channel (VDAC) in a single article. A real Renaissance of studies brings this protein to the center of decisive knowledge both for cell physiology and therapeutic application. This review, after highlighting the similarities between the cellular context and the study methods of the solute carriers present in the inner membrane and VDAC in the outer membrane of the mitochondria, will focus on the isoforms of VDAC and their biochemical characteristics. In particular, the possible reasons for their evolutionary onset will be discussed. The variations in their post-translational modifications and the differences between the regulatory regions of their genes, probably the key to understanding the current presence of these genes, will be described. Finally, the situation in the higher eukaryotes will be compared to that of yeast, a unicellular eukaryote, where there is only one active isoform and the role of VDAC in energy metabolism is better understood.
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Affiliation(s)
- Vito De Pinto
- Department of Biomedicine and Biotechnology Sciences, University of Catania, Via S. Sofia 64, 95123 Catania, Italy; ; Tel.: +39-095-73842444
- we.MitoBiotech.srl, c.so Italia 172, 95129 Catania, Italy
- National Institute of Biostructures and Biosystems, Section of Catania, 00136 Rome, Italy
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8
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Is the secret of VDAC Isoforms in their gene regulation? Characterization of human VDAC genes expression profile, promoter activity, and transcriptional regulators. Int J Mol Sci 2020; 21:ijms21197388. [PMID: 33036380 PMCID: PMC7582299 DOI: 10.3390/ijms21197388] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/02/2020] [Accepted: 10/03/2020] [Indexed: 02/07/2023] Open
Abstract
VDACs (voltage-dependent anion-selective channels) are pore-forming proteins of the outer mitochondrial membrane, whose permeability is primarily due to VDACs’ presence. In higher eukaryotes, three isoforms are raised during the evolution: they have the same exon–intron organization, and the proteins show the same channel-forming activity. We provide a comprehensive analysis of the three human VDAC genes (VDAC1–3), their expression profiles, promoter activity, and potential transcriptional regulators. VDAC isoforms are broadly but also specifically expressed in various human tissues at different levels, with a predominance of VDAC1 and VDAC2 over VDAC3. However, an RNA-seq cap analysis gene expression (CAGE) approach revealed a higher level of transcription activation of VDAC3 gene. We experimentally confirmed this information by reporter assay of VDACs promoter activity. Transcription factor binding sites (TFBSs) distribution in the promoters were investigated. The main regulators common to the three VDAC genes were identified as E2F-myc activator/cell cycle (E2FF), Nuclear respiratory factor 1 (NRF1), Krueppel-like transcription factors (KLFS), E-box binding factors (EBOX) transcription factor family members. All of them are involved in cell cycle and growth, proliferation, differentiation, apoptosis, and metabolism. More transcription factors specific for each VDAC gene isoform were identified, supporting the results in the literature, indicating a general role of VDAC1, as an actor of apoptosis for VDAC2, and the involvement in sex determination and development of VDAC3. For the first time, we propose a comparative analysis of human VDAC promoters to investigate their specific biological functions. Bioinformatics and experimental results confirm the essential role of the VDAC protein family in mitochondrial functionality. Moreover, insights about a specialized function and different regulation mechanisms arise for the three isoform gene.
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9
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Sato Y, Tajima A, Kiguchi M, Kogusuri S, Fujii A, Sato T, Nozawa S, Yoshiike M, Mieno M, Kojo K, Uchida M, Tsuchiya H, Yamasaki K, Imoto I, Iwamoto T. Genome-wide association study of semen volume, sperm concentration, testis size, and plasma inhibin B levels. J Hum Genet 2020; 65:683-691. [PMID: 32341457 DOI: 10.1038/s10038-020-0757-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/29/2020] [Accepted: 03/30/2020] [Indexed: 11/09/2022]
Abstract
Semen quality is affected by environmental factors, endocrine function abnormalities, and genetic factors. A GWAS recently identified ERBB4 at 2q34 as a genetic locus associated with sperm motility. However, GWASs for human semen volume and sperm concentration have not been conducted. In addition, testis size also reportedly correlates with semen quality, and it is important to identify genes that affect testis size. Reproductive hormones also play an important role in spermatogenesis. To date, genetic loci associated with plasma testosterone, sex hormone-binding globulin (SHBG), follicle-stimulating hormone (FSH), and luteinizing hormone (LH) levels have been identified using GWASs. However, GWASs have not identified any relevant loci for plasma inhibin B levels. We conducted a two-stage GWAS using 811 Japanese men in a discovery stage followed by a replication stage using an additional 721 Japanese men. The results of the discovery and replication stages were combined into a meta-analysis. After setting a suggestive significance threshold for P values < 5 × 10-6 in the discovery stage, we identified ten regions with SNPs (semen volume: one, sperm concentration: three, testes size: two, and inhibin B: four). We selected only the most significant SNP in each region for replication genotyping. Combined discovery and replication results in the meta-analysis showed that the locus 12q21.31 associated with plasma inhibin B levels (rs11116724) had the most significant association (P = 5.7 × 10-8). The LRRIQ1 and TSPAN19 genes are located in the 12q21.31 region. This study provides new susceptibility variants that contribute to plasma inhibin B levels.
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Affiliation(s)
- Youichi Sato
- Department of Pharmaceutical Information Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8505, Japan.
| | - Atsushi Tajima
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Ishikawa, 920-8640, Japan.
| | - Misaki Kiguchi
- Department of Pharmaceutical Information Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8505, Japan
| | - Suzu Kogusuri
- Department of Pharmaceutical Information Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8505, Japan
| | - Aki Fujii
- Department of Pharmaceutical Information Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8505, Japan
| | - Takehiro Sato
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Ishikawa, 920-8640, Japan
| | - Shiari Nozawa
- Department of Urology, St. Marianna University School of Medicine, Kanagawa, 216-8511, Japan
| | - Miki Yoshiike
- Department of Urology, St. Marianna University School of Medicine, Kanagawa, 216-8511, Japan
| | - Makiko Mieno
- Department of Medical Informatics, Center for Information, Jichi Medical University, Tochigi, 329-0498, Japan
| | - Kosuke Kojo
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan.,Department of Urology, University of Tsukuba Hospital, Ibaraki, 305-8576, Japan
| | - Masahiro Uchida
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan.,Urology department, Tsukuba Gakuen Hospital, Ibaraki, 305-0854, Japan
| | - Haruki Tsuchiya
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan
| | - Kazumitu Yamasaki
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan.,Urology department, Tsukuba Gakuen Hospital, Ibaraki, 305-0854, Japan
| | - Issei Imoto
- Division of Molecular Genetics, Aichi Cancer Center Research Institute, Aichi, 464-8681, Japan
| | - Teruaki Iwamoto
- Department of Urology, St. Marianna University School of Medicine, Kanagawa, 216-8511, Japan.,Center for Infertility and IVF, International University of Health and Welfare Hospital, Tochigi, 329-2763, Japan.,Department of Male Infertility, Reproduction Center, Sanno Hospital, Tokyo, 107-0052, Japan
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10
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Palmer N, Talib SZA, Ratnacaram CK, Low D, Bisteau X, Lee JHS, Pfeiffenberger E, Wollmann H, Tan JHL, Wee S, Sobota R, Gunaratne J, Messerschmidt DM, Guccione E, Kaldis P. CDK2 regulates the NRF1/ Ehmt1 axis during meiotic prophase I. J Cell Biol 2019; 218:2896-2918. [PMID: 31350280 PMCID: PMC6719441 DOI: 10.1083/jcb.201903125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/10/2019] [Accepted: 07/08/2019] [Indexed: 12/14/2022] Open
Abstract
Palmer et al. identify NRF1 as a novel CDK2 interactor and substrate. This interaction was found to be important for the DNA-binding activity of NRF1. Their findings demonstrate that the loss of CDK2 expression impairs the regulation of NRF1 transcriptional activity, leading to inappropriate transcription during meiotic division. Meiosis generates four genetically distinct haploid gametes over the course of two reductional cell divisions. Meiotic divisions are characterized by the coordinated deposition and removal of various epigenetic marks. Here we propose that nuclear respiratory factor 1 (NRF1) regulates transcription of euchromatic histone methyltransferase 1 (EHMT1) to ensure normal patterns of H3K9 methylation during meiotic prophase I. We demonstrate that cyclin-dependent kinase (CDK2) can bind to the promoters of a number of genes in male germ cells including that of Ehmt1 through interaction with the NRF1 transcription factor. Our data indicate that CDK2-mediated phosphorylation of NRF1 can occur at two distinct serine residues and negatively regulates NRF1 DNA binding activity in vitro. Furthermore, induced deletion of Cdk2 in spermatocytes results in increased expression of many NRF1 target genes including Ehmt1. We hypothesize that the regulation of NRF1 transcriptional activity by CDK2 may allow the modulation of Ehmt1 expression, therefore controlling the dynamic methylation of H3K9 during meiotic prophase.
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Affiliation(s)
- Nathan Palmer
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.,Department of Biochemistry, National University of Singapore, Singapore
| | - S Zakiah A Talib
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | | | - Diana Low
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Xavier Bisteau
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Joanna Hui Si Lee
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | | | - Heike Wollmann
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Joel Heng Loong Tan
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore.,Department of Biochemistry, National University of Singapore, Singapore
| | - Sheena Wee
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Radoslaw Sobota
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Jayantha Gunaratne
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Daniel M Messerschmidt
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Ernesto Guccione
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore .,Department of Biochemistry, National University of Singapore, Singapore
| | - Philipp Kaldis
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore .,Department of Biochemistry, National University of Singapore, Singapore
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11
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Voltage-dependent anion channel isoform 3 as a potential male contraceptive drug target. Future Med Chem 2019; 11:857-867. [PMID: 30998114 DOI: 10.4155/fmc-2018-0328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Voltage-dependent anion channel isoform 3 (VDAC3), a channel in the mitochondrial outer membrane, has been suggested to play a role in the regulation of ATP transport and Ca2+ homeostasis. These processes are regarded as important for spermatozoa motility. Accordingly, in previous years, mutations in the VDAC3-encoding gene were detected in spermatozoa with low motility from infertile patients. Therefore, it can be assumed that these mutations would cause alteration of the structure and/or charge of the VDAC3 channel. The review is focused on current knowledge about contribution of VDAC3 activity to human spermatozoa motility and morphology. We also discuss the possibility of designing new molecules that could specifically block the VDAC3 channel and consequently act as male contraceptives.
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12
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Shabani S, Mashayekhi F, Shahangian SS, Salehi Z. Genetic polymorphism of glial cell-derived neurotrophic factor (GDNF) in male infertility. Br J Biomed Sci 2018; 76:86-88. [DOI: 10.1080/09674845.2018.1545553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- S Shabani
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - F Mashayekhi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - SS Shahangian
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Z Salehi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
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