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Jalalabadi FN, Cheraghi E, Janatifar R, Momeni HR. The Detection of CatSper1 and CatSper3 Expression in Men with Normozoospermia and Asthenoteratozoospermia and Its Association with Sperm Parameters, Fertilization Rate, Embryo Quality. Reprod Sci 2024; 31:704-713. [PMID: 37957468 DOI: 10.1007/s43032-023-01397-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023]
Abstract
CatSper affects sperm function and male fertilization capacity markers, including sperm motility and egg penetration. The study has aimed to evaluate the mRNA expression of CatSper1, and CatSper3 in the spermatozoa of men with normozoospermia and Asthenoteratozoospermia, and to assess the correlation between genes expression and sperm parameters, fertilization rate, and embryo quality in intracytoplasmic sperm injection (ICSI). Reverse transcription-polymerase chain reaction was utilized to evaluate the mRNA expression of CatSper1 and CatSper3 in sperm in two patient groups: Normozoospermia (NOR; n = 32), and Asthenoteratozoospermia (AT; n = 22). In all patients receiving intracytoplasmic sperm injection, the fertilization rate and embryo quality were evaluated. CatSper1, and CatSper3 mRNA expression in sperm was significantly lower in AT males than in NOR (P < 0.05). Levels of these genes demonstrated a significant positive correlation with sperm motility, mitochondrial membrane potential (MMP), capacitation, fertilization rate, cleavage rate, and embryo quality (P < 0.05) following ICSI. However, a negative correlation was found between mRNA expression of CatSper1, 3 and sperm DNA fragmentation (P < 0.05). Findings indicate low levels of CatSper1 and CatSper3 mRNA expression in men with Asthenoteratozoospermia, which resulted in poor sperm quality and impaired embryo development following ICSI therapy.
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Affiliation(s)
| | - Ebrahim Cheraghi
- Department of Biology, Faculty of Science, University of Qom, Qom, Iran
| | - Rahil Janatifar
- Department of Reproductive Biology, Academic Center for Education Culture and Research (ACECR), Qom, Iran
| | - Hamid Reza Momeni
- Biology Department, Faculty of Science, Arak University, Arak, Iran.
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Vicente-Carrillo A, Álvarez-Rodríguez M, Rodriguez-Martinez H. The Cation/Calcium Channel of Sperm (CatSper): A Common Role Played Despite Inter-Species Variation? Int J Mol Sci 2023; 24:13750. [PMID: 37762052 PMCID: PMC10531172 DOI: 10.3390/ijms241813750] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/30/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
The main cation/calcium channel of spermatozoa (CatSper), first identified in 2001, has been thoroughly studied to elucidate its composition and function, while its distribution among species and sperm sources is yet incomplete. CatSper is composed of several subunits that build a pore-forming calcium channel, mainly activated in vivo in ejaculated sperm cells by intracellular alkalinization and progesterone, as suggested by the in vitro examinations. The CatSper channel relevance is dual: to maintain sperm homeostasis (alongside the plethora of membrane channels present) as well as being involved in pre-fertilization events, such as sperm capacitation, hyperactivation of sperm motility and the acrosome reaction, with remarkable species differences. Interestingly, the observed variations in CatSper localization in the plasma membrane seem to depend on the source of the sperm cells explored (i.e., epididymal or ejaculated, immature or mature, processed or not), the method used for examination and, particularly, on the specificity of the antibodies employed. In addition, despite multiple findings showing the relevance of CatSper in fertilization, few studies have studied CatSper as a biomarker to fine-tune diagnosis of sub-fertility in livestock or even consider its potential to control fertilization in plague animals, a more ethically defensible strategy than implicating CatSper to pharmacologically modify male-related fertility control in humans, pets or wild animals. This review describes inter- and intra-species differences in the localization, structure and function of the CatSper channel, calling for caution when considering its potential manipulation for fertility control or improvement.
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Affiliation(s)
- Alejandro Vicente-Carrillo
- Department of Animal Production, Veterinary Faculty, Complutense University of Madrid, 28040 Madrid, Spain
| | - Manuel Álvarez-Rodríguez
- Department Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria-Consejo Superior de Investigaciones Científicas (INIA-CSIC), 28040 Madrid, Spain
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Zhang D, Yin G, Zheng S, Chen Q, Li Y. Construction of a prediction model for prognosis of bladder cancer based on the expression of ion channel-related genes. Zhejiang Da Xue Xue Bao Yi Xue Ban 2023; 52:499-509. [PMID: 37643983 PMCID: PMC10495249 DOI: 10.3724/zdxbyxb-2023-0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 07/06/2023] [Indexed: 08/24/2023]
Abstract
OBJECTIVES To construct a prediction model for the prognosis of bladder cancer patients based on the expression of ion channel-related genes (ICRGs). METHODS ICRGs were obtained from the existing researches. The clinical information and the expression of ICRGs mRNA in breast cancer patients were obtained from the Cancer Genome Atlas database. Cox regression analysis, minimum absolute shrinkage and selection operator regression analysis were used to screen breast cancer prognosis related genes, which were verified by immunohistochemistry and qRT-PCR. The risk scoring equation for predicting the prognosis of patients with bladder cancer was constructed, and the patients were divided into high-risk group and low-risk group according to the median risk score. Immune cell infiltration was compared between the two groups. Kaplan-Meier survival curve and receiver operating characteristic (ROC) curve were used to evaluate the accuracy and clinical application value of the risk scoring equation. The factors related to the prognosis of bladder cancer patients were analyzed by univariate and multivariate Cox regression, and a nomogram for predicting the prognosis of bladder cancer patients was constructed. RESULTS By comparing the expression levels of ICRGs in bladder cancer tissues and normal bladder tissues, 73 differentially expressed ICRGs were dentified, of which 11 were related to the prognosis of bladder cancer patients. Kaplan-Meier survival curve suggested that the risk score based on these 11 genes was negatively correlated with the prognosis of patients. The area under the ROC curve of the risk score for predicting the prognosis of patients at 1, 3 and 5 year was 0.634, 0.665 and 0.712, respectively. Stratified analysis showed that the ICRGs-based risk score performed well in predicting the prognosis of patients with American Joint Committee on Cancer (AJCC) stage Ⅲ-Ⅳ bladder cancer (P<0.05), while it had a poor value in predicting the prognosis of patients with AJCC stage Ⅰ-Ⅱ (P>0.05). There were significant differences in the infiltration of plasma cells, activated natural killer cells, resting mast cells and M2 macrophages between the high-risk group and the low-risk group. Cox regression analysis showed that risk score, smoking, age and AJCC stage were independently associated with the prognosis of patients with bladder cancer (P<0.05). The nomogram constructed by combining risk score and clinical parameters has high accuracy in predicting the 1, 3 and 5 year overall survival rate of bladder cancer patients. CONCLUSIONS The study shows the potential value of ICRGs in the prognostic risk assessment of bladder cancer patients. The constructed prognostic nomogram based on ICRGs risk score has high accuracy in predicting the prognosis of bladder cancer patients.
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Affiliation(s)
- Dianfeng Zhang
- Department of Urology, Xuchang Central Hospital of Henan Province, Xuchang 461000, Henan Province, China.
| | - Guicao Yin
- Department of Urology, the Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Shengqi Zheng
- Department of Urology, the Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Qiu Chen
- Department of Urology, the Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China
| | - Yifan Li
- Department of Urology, the Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu Province, China.
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Cong S, Zhang J, Pan F, Pan L, Zhang A, Ma J. Research progress on ion channels and their molecular regulatory mechanisms in the human sperm flagellum. FASEB J 2023; 37:e23052. [PMID: 37352114 DOI: 10.1096/fj.202300756r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/06/2023] [Accepted: 06/09/2023] [Indexed: 06/25/2023]
Abstract
The ion channels in sperm tail play an important role in triggering key physiological reactions, e.g., progressive motility, hyperactivation, required for successful fertilization. Among them, CatSper and KSper have been shown to be important ion channels for the transport of Ca2+ and K+ . Moreover, the voltage-gated proton channel Hv1, the sperm-specific sodium-hydrogen exchanger (sNHE), the epithelial sodium channel (ENaC), members of the temperature-sensitive TRP channel family, and the cystic fibrosis transmembrane regulator (CFTR) are also found in the flagellum. This review focuses on the latest advances in ion channels located at the flagellum, describes how they affect sperm physiological function, and summarizes some primary mutual regulation mechanism between ion channels, including PH, membrane potential, and cAMP. These ion channels may be promising targets for clinical application in infertility.
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Affiliation(s)
- Shengnan Cong
- Obstetrics and Gynecology Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
- Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, P.R. China
| | - Jingjing Zhang
- Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, P.R. China
| | - Feng Pan
- Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, P.R. China
| | - Lianjun Pan
- Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, P.R. China
| | - Aixia Zhang
- Women's Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, P.R. China
| | - Jiehua Ma
- Obstetrics and Gynecology Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
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Hwang JY, Chung JJ. CatSper Calcium Channels: 20 Years On. Physiology (Bethesda) 2023; 38:0. [PMID: 36512352 PMCID: PMC10085559 DOI: 10.1152/physiol.00028.2022] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/12/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022] Open
Abstract
The flagellar-specific Ca2+ channel CatSper is the predominant Ca2+ entry site in mammalian sperm. CatSper-mediated Ca2+ signaling affects nearly every event that regulates sperm to acquire fertilizing capability. In this review, we summarize some of the main findings from 20 years of CatSper research and highlight recent progress and prospects.
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Affiliation(s)
- Jae Yeon Hwang
- Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, Connecticut
| | - Jean-Ju Chung
- Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, Connecticut
- Department of Gynecology and Obstetrics, Yale School of Medicine, New Haven, Connecticut
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Abd El-Emam MM, Ray MN, Ozono M, Kogure K. Heat stress disrupts spermatogenesis via modulation of sperm-specific calcium channels in rats. J Therm Biol 2023; 112:103465. [PMID: 36796910 DOI: 10.1016/j.jtherbio.2023.103465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 01/11/2023]
Abstract
Heat is a detrimental environmental stressor that disrupts spermatogenesis and results in male infertility. Previous investigations have shown that heat stress reduces the motility, number, and fertilization ability of living spermatozoa. Sperm hyperactivation, capacitation, acrosomal reaction, and chemotaxis towards the ova are regulated by the cation channel of sperm (CatSper). This sperm-specific ion channel triggers the influx of calcium ions into sperm cells. The aim of this study in rats was to investigate whether heat treatment affected the expression levels of CatSper-1 and -2, together with the sperm parameters, testicular histology and weight. The rats were exposed to heat stress for 6 days and the cauda epididymis and testis were collected 1, 14, and 35 days after heat treatment to measure sperm parameters, gene and protein expression, testicular weight, and histology. Interestingly, we found that heat treatment caused a notable downregulation of CatSper-1 and -2 expression at all three time points. In addition, there were significant reductions in sperm motility and number and an increase in the percentage of abnormal sperm at 1 and 14 days, with cessation of sperm production at 35 days. Furthermore, expression of the steroidogenesis regulator, 3 beta-hydroxysteroid dehydrogenase (3β-HSD) was upregulated in the 1-, 14- and 35-day samples. Heat treatment also upregulated the expression of the apoptosis regulator, BCL2-associated X protein (BAX), decreased testicular weight, and altered testicular histology. Therefore, our data showed for the first time that heat stress downregulated CatSper-1 and -2 in the rat testis, and that this may be a mechanism involved in heat stress-induced impairment of spermatogenesis.
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Affiliation(s)
- Mahran Mohamed Abd El-Emam
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima, 770-8505, Japan; Department of Biochemistry, Faculty of Veterinary Medicine, Zagazig University, El-Shohada, Moawwad, Qesm Awel AZ, Zagazig, 44511, Egypt
| | - Manobendro Nath Ray
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima, 770-8505, Japan
| | - Mizune Ozono
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima, 770-8505, Japan
| | - Kentaro Kogure
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Shomachi, Tokushima, 770-8505, Japan.
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Contreras‐Marciales ADP, López‐Guzmán SF, Benítez‐Hess ML, Oviedo N, Hernández‐Sánchez J. Characterization of the promoter region of the murine Catsper2 gene. FEBS Open Bio 2022; 12:2236-2249. [PMID: 36345591 PMCID: PMC9714369 DOI: 10.1002/2211-5463.13518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/07/2022] [Accepted: 11/07/2022] [Indexed: 11/09/2022] Open
Abstract
CATSPER2 (Cation channel sperm-associated protein 2) protein, which is part of the calcium CATSPER channel located in the membrane of the flagellar principal piece of the sperm cell, is only expressed in the testis during spermatogenesis. Deletions or mutations in the Catsper2 gene are associated with the deafness-infertility syndrome (DIS) and non-syndromic male infertility. However, the mechanisms by which Catsper2 is regulated are unknown. Here, we report the characterization of the promoter region of murine Catsper2 and the role of CTCF and CREMτ in its transcription. We report that the promoter region has transcriptional activity in both directions, as determined by observing luciferase activity in mouse Sertoli and GC-1 spg transfected cells. WGBS data analysis indicated that a CpG island identified in silico is non-methylated; Chromatin immunoprecipitation (ChIP)-seq data analysis revealed that histone marks H3K4me3 and H3K36me3 are present in the promoter and body of the Catsper2 gene respectively, indicating that Catsper2 is subject to epigenetic regulation. In addition, the murine Catsper2 core promoter was delimited to a region between -54/+189 relative to the transcription start site (TSS), where three CTCF and one CRE binding site were predicted. The functionality of these sites was determined by mutation of the CTCF sites and deletion of the CRE site. Finally, ChIP assays confirmed that CREMτ and CTCF bind to the Catsper2 minimal promoter region. This study represents the first functional analysis of the murine Catsper2 promoter region and the mechanisms that regulate its expression.
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Affiliation(s)
- Andrea del Pilar Contreras‐Marciales
- Departamento de Genética y Biología MolecularCentro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)Ciudad de MéxicoMexico
| | - Sergio Federico López‐Guzmán
- Departamento de Genética y Biología MolecularCentro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)Ciudad de MéxicoMexico
| | - María Luisa Benítez‐Hess
- Departamento de Genética y Biología MolecularCentro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)Ciudad de MéxicoMexico
| | - Norma Oviedo
- Unidad de Investigación Médica en Inmunología e Infectología, Centro Médico Nacional, La RazaInstituto Mexicano del Seguro SocialCiudad de MéxicoMexico
| | - Javier Hernández‐Sánchez
- Departamento de Genética y Biología MolecularCentro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)Ciudad de MéxicoMexico
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Phytomedicinal therapeutics for male infertility: critical insights and scientific updates. J Nat Med 2022; 76:546-573. [PMID: 35377028 DOI: 10.1007/s11418-022-01619-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 03/11/2022] [Indexed: 10/18/2022]
Abstract
Infertility is a significant cause of anxiety, depression, and social stigma among couples and families. In such cases, male reproductive factors contribute widely to the extent of 20-70%. Male infertility is a multifactorial disease with several complications contributing to its diagnosis. Although its management encompasses both modern and traditional medicine arenas, the first line of treatment, adopted by most males, focuses on the reasonably successful medicinal plant-based conventional therapies. Phyto-therapeutics, which relies on active ingredients from traditionally known herbs, influences sexual behavior and male fertility factors. The potency of these phyto-actives depends on their preparation methods and forms of consumption, including decoctions, extracts, semi-purified compounds, etc., as inferred from in vitro and in vivo (laboratory animal models and human) studies. The mechanisms of action therein involve the testosterone pathway for stimulation of spermatogenesis, reduction of oxidative stress, inhibition of inflammation, activation of signaling pathways in the testes [extracellular-regulated kinase (ERK)/protein kinase B(PKB)/transformation of growth factor-beta 1(TGF-β1)/nuclear factor kappa-light-chain-enhancer of activated B cells NF-kB signaling pathways] and mediation of sexual behavior. This review critically focuses on the medicinal plants and their potent actives, along with the biochemical and molecular mechanisms that modulate vital pathways associated with the successful management of male infertility. Such intrinsic knowledge will significantly further studies on medicinal plants that improve male reproductive health.
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Allaeian Jahromi Z, Meshkibaf MH, Naghdi M, Vahdati A, Makoolati Z. Methamphetamine Downregulates the Sperm-Specific Calcium Channels Involved in Sperm Motility in Rats. ACS OMEGA 2022; 7:5190-5196. [PMID: 35187334 PMCID: PMC8851642 DOI: 10.1021/acsomega.1c06242] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
Calcium channels play essential roles in sperm motility. A family of sperm-specific cation channels including CatSper1-4 has been identified as voltage-dependent ion channels that act as sperm motility regulators. Methamphetamine is known to cause apoptosis in seminiferous tubules and affect sperm quality. This research was conducted to investigate the effects of methamphetamine on expression of the CatSper family and Mvh genes. Thirty-six adult Wistar rats were divided into four groups of nine rats each: the control and experimental groups 1, 2, and 3. The control group received no solvents or drugs, but experimental groups 1, 2, and 3 were daily given 0.2 mL of a solution by gavage that contained 0.5, 1, and 2 mg of methamphetamine, respectively, for 45 days. The rats were then anesthetized, and one testis removed from each rat was used in a reverse transcription-polymerase chain reaction (RT-PCR). Analysis of variance (ANOVA) and Tukey's posthoc test were used to analyze the data at the P < 0.05 significance level. Treatment with methamphetamine resulted in decreased testis and epididymis weights compared to the control rats. The results showed that the mRNA fold expression level of the CatSper family and Mvh genes decreased significantly in experimental groups compared to that in the control (P < 0.05). Methamphetamine decreased the expression levels of the CatSper and Mvh genes, and thus, it seemed that it can increase the probability of infertility through sperm motility reduction by lowering the expression levels of these genes.
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Affiliation(s)
- Zahra Allaeian Jahromi
- Department
of Biology, Science and Research Branch, Islamic Azad University, Fars 11341-73631, Iran
| | - Mohammad Hassan Meshkibaf
- Department
of Clinical Biochemistry, Faculty of Medicine, Fasa University of Medical Sciences, Fasa 74616-86688, Iran
| | - Majid Naghdi
- Department
of Anatomical Sciences, Faculty of Medicine, Fasa University of Medical Sciences, Fasa 74616-86688, Iran
| | - Akbar Vahdati
- Department
of Biology, Shiraz Branch, Islamic Azad
University, Shiraz 71937-1135, Iran
| | - Zohreh Makoolati
- Department
of Anatomical Sciences, Faculty of Medicine, Fasa University of Medical Sciences, Fasa 74616-86688, Iran
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De novo Assembly and Analysis of Tissue-Specific Transcriptomes of the Edible Red Sea Urchin Loxechinus albus Using RNA-Seq. BIOLOGY 2021; 10:biology10100995. [PMID: 34681094 PMCID: PMC8533317 DOI: 10.3390/biology10100995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 02/07/2023]
Abstract
Simple Summary Edible red sea urchin (Loxechinus albus) is an endemic species of echinoderm distributed along the Chilean coasts. This resource has been overexploited in recent years, depleting their natural populations. At present, there are few reported gene sequences available in public databases, restricting the molecular studies associated with aquaculture for this species. The aim of this study was to present the first annotated reference transcriptome of L. albus using NGS technologies and the differential expression transcripts analysis of the evaluated tissues. The transcriptome data obtained in this study will serve as a reference for future molecular research in the edible red sea urchin and other sea urchin species. Abstract Edible red sea urchin (Loxechinus albus) is an endemic echinoderm species of the Chilean coasts. The worldwide demand for high-quality gonads of this species has addressed the depletion of its natural populations. Studies on this sea urchin are limited, and genomic information is almost nonexistent. Hence, generate a transcriptome is crucial information that will considerably enrich molecular data and promote future findings for the L. albus aquaculture. Here, we obtained transcriptomic data of the edible red sea urchin by Illumina platform. Total RNA was extracted from gonads, intestines, and coelomocytes of juvenile urchins, and samples were sequenced using MiSeq Illumina technology. A total of 91,119,300 paired-end reads were de novo assembled, 185,239 transcripts produced, and a reference transcriptome created with 38.8% GC content and an N50 of 1769 bp. Gene ontology analysis revealed notable differences in the expression profiles between gonads, intestines, and coelomocytes, allowing the detection of transcripts associated with specific biological processes and KEGG pathways. These data were validated using 12 candidate transcripts by real-time qPCR. This dataset will provide a valuable molecular resource for L. albus and other species of sea urchins.
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Mansouri S, Jalali M, Nikravesh MR, Soukhtanloo M. Down-regulation of CatSper 1 and CatSper 2 genes by methamphetamine. TOXIN REV 2021. [DOI: 10.1080/15569543.2020.1868007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Somaieh Mansouri
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Jalali
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Nikravesh
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Soukhtanloo
- Department of Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Kim JH, Kim DH, Lim YH, Shin CH, Lee YA, Kim BN, Kim JI, Hong YC. Childhood Obesity-Related Mechanisms: MicroRNome and Transcriptome Changes in a Nested Case-Control Study. Biomedicines 2021; 9:biomedicines9080878. [PMID: 34440082 PMCID: PMC8389653 DOI: 10.3390/biomedicines9080878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 11/20/2022] Open
Abstract
Childhood obesity could contribute to adulthood obesity, leading to adverse health outcomes in adults. However, the mechanisms for how obesity is developed are still unclear. To determine the epigenome-wide and genome-wide expression changes related with childhood obesity, we compared microRNome and transcriptome levels as well as leptin protein levels in whole bloods of 12 obese and 24 normal children aged 6 years. miR-328-3p, miR-1301-3p, miR-4685-3p, and miR-6803-3p were negatively associated with all obesity indicators. The four miRNAs were also associated with 3948 mRNAs, and separate 475 mRNAs (185 among 3948 mRNAs) were associated with all obesity indicators. The 2533 mRNAs (64.2%) among the 3948 mRNAs and 286 mRNAs (60.2%) among the 475 mRNAs were confirmed as targets of the four miRNAs in public databases through miRWalk 2.0. Leptin protein was associated with miR-6803-3p negatively and all obesity indicators positively. Using DAVID bioinformatics resources 6.8, top three pathways for obesity-related gene set were metabolic pathways, pathways in cancer, and PI3K-Akt signaling pathway. The top three obesity-related disease classes were metabolic, cardiovascular, and chemdependency. Our results support that childhood obesity could be developed through miRNAs-related epigenetic mechanism and, further, these obesity-related epigenetic changes could control the pathways related with the development of various diseases.
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Affiliation(s)
- Jin Hee Kim
- Department of Integrative Bioscience & Biotechnology, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea;
- Correspondence: (J.H.K.); (Y.-C.H.)
| | - Da Hae Kim
- Department of Integrative Bioscience & Biotechnology, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea;
| | - Youn-Hee Lim
- Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul 03080, Korea;
- Environmental Health Center, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Choong Ho Shin
- Department of Pediatrics, Seoul National University College of Medicine, Seoul 03080, Korea; (C.H.S.); (Y.A.L.)
| | - Young Ah Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul 03080, Korea; (C.H.S.); (Y.A.L.)
| | - Bung-Nyun Kim
- Division of Children and Adolescent Psychiatry, Department of Psychiatry, Seoul National University Hospital, Seoul 03080, Korea;
| | - Johanna Inhyang Kim
- Department of Psychiatry, Hanyang University Medical Center, Seoul 04763, Korea;
| | - Yun-Chul Hong
- Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul 03080, Korea;
- Environmental Health Center, Seoul National University College of Medicine, Seoul 03080, Korea
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Korea
- Correspondence: (J.H.K.); (Y.-C.H.)
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Jin ZR, Fang D, Liu BH, Cai J, Tang WH, Jiang H, Xing GG. Roles of CatSper channels in the pathogenesis of asthenozoospermia and the therapeutic effects of acupuncture-like treatment on asthenozoospermia. Am J Cancer Res 2021; 11:2822-2844. [PMID: 33456575 PMCID: PMC7806476 DOI: 10.7150/thno.51869] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 12/13/2020] [Indexed: 02/06/2023] Open
Abstract
Rationale: Idiopathic asthenozoospermia (iAZS) is one of the major causes of male infertility and has no effective therapeutic treatment. Understanding the potential mechanisms that cause it may be helpful in seeking novel targets and treatment strategies for overcoming the problem of low sperm motility in iAZS individuals. Methods: Computer-assisted semen analysis (CASA) was utilized to assess the sperm motility. RT-qPCR, Western blot, immunofluorescence staining, and calcium imaging analysis were performed to examine the expression and function of CatSper channels. Hyperactivation and acrosome reaction were used to evaluate the functional characteristics of epididymal sperm. In vivo fertility assay was applied to determine the fertility of rats. CatSper1 knockdown and overexpression experiments were performed to confirm the roles of CatSper channels in the pathogenesis of iAZS and the therapeutic effects of electroacupuncture (EA) treatment on AZS model rats. Results: Here, we reported a functional down-regulation of CatSper channel from CatSper1 to CatSper 4 in the sperm of both iAZS patients and ornidazole (ORN)-induced AZS model rats, and an impaired sperm function characterized by a reduction of protein tyrosine phosphorylation, hyperactivation, and acrosome reaction in the epididymal sperm of AZS rats. Knockdown of CatSper1 in the testis tissues is sufficient to induce AZS in normal rats, and this action was validated by the reversal effects of CatSper1 overexpression. Transcutaneous electrical acupoint stimulation (TEAS) and electroacupuncture (EA) at 2 Hz frequency improve the sperm motility via enhancing the functional expression of CatSper channels in the sperm. Gene silencing CatSper1 in the sperm abolishes the therapeutic effects of 2 Hz-EA treatment on AZS rats. Conclusions: We conclude that a functional down-regulation of CatSper channel in the sperm may be a contributor or a downstream indicator for a portion of AZS, especially iAZS, while 2 Hz-TEAS or EA treatment has a therapeutic effect on iAZS through inducing the functional up-regulation of CatSper channels in the sperm. This study provides a novel mechanism for the pathogenesis of some AZS especially iAZS, and presents a potential therapeutic target of CatSper for iAZS treatment. Acupuncture treatment like TEAS may be used as a promising complementary and alternative medicine (CAM) therapy for male infertility caused by iAZS in clinical practice.
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Wang J, Tang H, Zou Q, Zheng A, Li H, Yang S, Xiang J. Patient with CATSPER3 mutations-related failure of sperm acrosome reaction with successful pregnancy outcome from intracytoplasmic sperm injection (ICSI). Mol Genet Genomic Med 2020; 9:e1579. [PMID: 33350607 PMCID: PMC8077087 DOI: 10.1002/mgg3.1579] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose This study is intended to investigate the candidate pathogenic gene in a patient with primary infertility but without the defect in routine semen parameters from a consanguineous family and explore the potential impacts of mutations on assisted reproductive technology outcome. Methods Whole‐exome sequencing (WES) was carried out. A variant in his family found by WES was verified by Sanger sequencing. Intracytoplasmic sperm injection (ICSI) was applied to obtain a successful outcome. Results A Cation Channel of Sperm 3(CATSPER3) homozygous variant (NM_ 178019.3:exon5:c.707T>A, p.L236*) was identified for the first time. The anti‐CD46 immunofluorescence analysis revealed the failure of sperm acrosome reaction (AR) caused by the mutation. ICSI treatment was successful. Conclusion This is the first report of a homozygous pathogenic CATSPER3 mutation. This mutation may cause male infertility with the failure of AR but without the defect in routine semen parameters. ICSI was supposed to be the most appropriate therapy.
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Affiliation(s)
- Jiaxiong Wang
- Center for Reproduction and Genetics, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Hui Tang
- Suzhou Center Affiliated to State Key Laboratory of Reproductive Medicine, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Qinyan Zou
- Center for Reproduction and Genetics, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Aiyan Zheng
- Center for Reproduction and Genetics, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Hong Li
- Center for Reproduction and Genetics, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Shenmin Yang
- Center for Reproduction and Genetics, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Jingjing Xiang
- Suzhou Center Affiliated to State Key Laboratory of Reproductive Medicine, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, China
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Noordin MAM, Noor MM, Aizat WM. The Impact of Plant Bioactive Compounds on Aging and Fertility of Diverse Organisms: A Review. Mini Rev Med Chem 2020; 20:1287-1299. [DOI: 10.2174/1389557520666200429101942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 11/22/2022]
Abstract
It is expected that in 2050, there will be more than 20% of senior citizens aged over 60 years
worldwide. Such alarming statistics require immediate attention to improve the health of the aging
population. Since aging is closely related to the loss of antioxidant defense mechanisms, this situation
eventually leads to numerous health problems, including fertility reduction. Furthermore, plant extracts
have been used in traditional medicine as potent antioxidant sources. Although many experiments had
reported the impact of various bioactive compounds on aging or fertility, there is a lack of review papers
that combine both subjects. In this review, we have collected and discussed various bioactive
compounds from 26 different plant species known to affect both longevity and fertility. These compounds,
including phenolics and terpenes, are mostly involved in the antioxidant defense mechanisms
of diverse organisms such as rats, mites, fruit flies, roundworms, and even roosters. A human clinical
trial should be considered in the future to measure the effects of these bioactive compounds on human
health and longevity. Ultimately, these plant-derived compounds could be developed into health supplements
or potential medical drugs to ensure a healthy aging population.
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Affiliation(s)
- Muhammad Akram Mohd Noordin
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
| | - Mahanem Mat Noor
- Centre for Biotechnology and Functional Food, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
| | - Wan Mohd Aizat
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
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16
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Lissabet JFB, Herrera Belén L, Lee-Estevez M, Risopatrón J, Valdebenito I, Figueroa E, Farías JG. The CatSper channel is present and plays a key role in sperm motility of the Atlantic salmon (Salmo salar). Comp Biochem Physiol A Mol Integr Physiol 2019; 241:110634. [PMID: 31841710 DOI: 10.1016/j.cbpa.2019.110634] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/30/2019] [Accepted: 12/06/2019] [Indexed: 11/28/2022]
Abstract
Among all the Ca2+ channels, CatSper channels have been one of the most studied in sperm of different species due to their demonstrated role in the fertilization process. In fish sperm, the calcium channel plays a key role in sperm activation. However, the functionality of the CatSper channels has not been studied in any of the fish species. For the first time, we studied the relationship of the CatSper channel with sperm motility in a fish, using Atlantic salmon (Salmo salar) as the model. The results of our study showed that the CatSper channel in Salmo salar has chemical-physical characteristics similar to those reported for mammalian CatSper channels. In this work, it was shown that Salmo salar CatSper 3 protein has a molecular weight of approximately 55-kDa similar to Homo sapiens CatSper 3. In silico analyses suggest that this channel forms a heterotetramer sensitive to the specific inhibitor HC-056456, with a binding site in the center of the pore of the CatSper channel, hindering or preventing the influx of Ca2+ ions. The in vitro assay of the sperm motility inhibition of Salmo salar with the inhibitor HC-056456 showed that sperm treated with this inhibitor significantly reduced the total and progressive motility (p < .0001), demonstrating the importance of this ionic channel for this cell. The complementation of the in silico and in vitro analyses of the present work demonstrates that the CatSper channel plays a key role in the regulation of sperm motility in Atlantic salmon.
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Affiliation(s)
- Jorge Félix Beltrán Lissabet
- Department of Chemical Engineering, Universidad de La Frontera, Av. Francisco Salazar 01145 Box 54D, Temuco, Chile; Center of Biotechnology of Reproduction (CEBIOR), Bioresources Research Nucleus (BIOREN), Universidad de La Frontera, Montevideo 0870, Temuco, Chile
| | - Lisandra Herrera Belén
- Department of Chemical Engineering, Universidad de La Frontera, Av. Francisco Salazar 01145 Box 54D, Temuco, Chile
| | - Manuel Lee-Estevez
- Department of Chemical Engineering, Universidad de La Frontera, Av. Francisco Salazar 01145 Box 54D, Temuco, Chile; Center of Biotechnology of Reproduction (CEBIOR), Bioresources Research Nucleus (BIOREN), Universidad de La Frontera, Montevideo 0870, Temuco, Chile
| | - Jennie Risopatrón
- Center of Biotechnology of Reproduction (CEBIOR), Bioresources Research Nucleus (BIOREN), Universidad de La Frontera, Montevideo 0870, Temuco, Chile
| | - Iván Valdebenito
- School of Aquaculture, Catholic University of Temuco, Av. Rudecindo Ortega, 02950 Temuco, Chile
| | - Elías Figueroa
- School of Aquaculture, Catholic University of Temuco, Av. Rudecindo Ortega, 02950 Temuco, Chile; Laboratorio de Biotecnología, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, El Líbano 5524, Macul, Santiago, Chile
| | - Jorge G Farías
- Department of Chemical Engineering, Universidad de La Frontera, Av. Francisco Salazar 01145 Box 54D, Temuco, Chile; Center of Biotechnology of Reproduction (CEBIOR), Bioresources Research Nucleus (BIOREN), Universidad de La Frontera, Montevideo 0870, Temuco, Chile.
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17
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Brown SG, Publicover SJ, Barratt CLR, Martins da Silva SJ. Human sperm ion channel (dys)function: implications for fertilization. Hum Reprod Update 2019; 25:758-776. [PMID: 31665287 PMCID: PMC6847974 DOI: 10.1093/humupd/dmz032] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/14/2019] [Accepted: 08/13/2019] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Intensive research on sperm ion channels has identified members of several ion channel families in both mouse and human sperm. Gene knock-out studies have unequivocally demonstrated the importance of the calcium and potassium conductances in sperm for fertility. In both species, the calcium current is carried by the highly complex cation channel of sperm (CatSper). In mouse sperm, the potassium current has been conclusively shown to be carried by a channel consisting of the pore forming subunit SLO3 and auxiliary subunit leucine-rich repeat-containing 52 (LRRC52). However, in human sperm it is controversial whether the pore forming subunit of the channel is composed of SLO3 and/or SLO1. Deciphering the role of the proton-specific Hv1 channel is more challenging as it is only expressed in human sperm. However, definitive evidence for a role in, and importance for, human fertility can only be determined through studies using clinical samples. OBJECTIVE AND RATIONALE This review aims to provide insight into the role of sperm ion channels in human fertilization as evidenced from recent studies of sperm from infertile men. We also summarize the key discoveries from mouse ion channel knock-out models and contrast the properties of mouse and human CatSper and potassium currents. We detail the evidence for, and consequences of, defective ion channels in human sperm and discuss hypotheses to explain how defects arise and why affected sperm have impaired fertilization potential. SEARCH METHODS Relevant studies were identified using PubMed and were limited to ion channels that have been characterized in mouse and human sperm. Additional notable examples from other species are included as appropriate. OUTCOMES There are now well-documented fundamental differences between the properties of CatSper and potassium channel currents in mouse and human sperm. However, in both species, sperm lacking either channel cannot fertilize in vivo and CatSper-null sperm also fail to fertilize at IVF. Sperm-lacking potassium currents are capable of fertilizing at IVF, albeit at a much lower rate. However, additional complex and heterogeneous ion channel dysfunction has been reported in sperm from infertile men, the causes of which are unknown. Similarly, the nature of the functional impairment of affected patient sperm remains elusive. There are no reports of studies of Hv1 in human sperm from infertile men. WIDER IMPLICATIONS Recent studies using sperm from infertile men have given new insight and critical evidence supporting the supposition that calcium and potassium conductances are essential for human fertility. However, it should be highlighted that many fundamental questions remain regarding the nature of molecular and functional defects in sperm with dysfunctional ion channels. The development and application of advanced technologies remains a necessity to progress basic and clinical research in this area, with the aim of providing effective screening methodologies to identify and develop treatments for affected men in order to help prevent failed ART cycles. Conversely, development of drugs that block calcium and/or potassium conductances in sperm is a plausible strategy for producing sperm-specific contraceptives.
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Affiliation(s)
- Sean G Brown
- School of Applied Sciences, Abertay University, Dundee DD11HG, UK
| | | | - Christopher L R Barratt
- Systems Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee DD19SY, UK
| | - Sarah J Martins da Silva
- Systems Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee DD19SY, UK
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18
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Alshawa E, Laqqan M, Montenarh M, Hammadeh ME. Influence of cryopreservation on the CATSPER2 and TEKT2 expression levels and protein levels in human spermatozoa. Toxicol Rep 2019; 6:819-824. [PMID: 31463202 PMCID: PMC6706526 DOI: 10.1016/j.toxrep.2019.08.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 08/03/2019] [Accepted: 08/05/2019] [Indexed: 01/11/2023] Open
Abstract
The cryopreservation process could lead to a reduction in the expression levels of the CATSPER2 and TEKT2 gene in human spermatozoa. The cryopreservation process could lead to a down-regulation in the expression of CATSPER2 and TEKT2 gene in human spermatozoa. The cryopreservation process could lead to a reduction in the level of CatSper 2 and Tektin 2 protein in human spermatozoa. The CatSper 2 and Tektin 2 may be used as markers to explain the causes of motility loss in the spermatozoa after the cryopreservation process.
This study designed to assess the expression level of CATSPER2 and TEKT2 and to evaluate the levels of CatSper2 and Tektin2 proteins in human spermatozoa before and after cryopreservation. One hundred and twenty semen samples were included in this study. All the samples were subjected to qPCR and Western blot analysis. The results showed a significant reduction in the expression levels of CATSPER2 and TEKT2 in the cryopreserved compared to the fresh samples (P = 0.0039 and P = 0.0166, respectively), and the results showed down-regulation in the expression level of CATSPER2 and TEKT2 genes between the study groups. Moreover, the protein levels of the CatSper2 and Tektin2 were lower in cryopreserved samples compared to fresh samples (P = 0.0001). In conclusion, the reduction in the proteins level and expression level of the CATSPER2 and TEKT2 in cryopreserved samples could be used as an indicator of sperm motility loss.
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Affiliation(s)
- Eiman Alshawa
- Department of Obstetrics, Gynecology & Assisted Reproduction Laboratory, Saarland University, Homburg, Germany
| | - Mohammed Laqqan
- Department of Obstetrics, Gynecology & Assisted Reproduction Laboratory, Saarland University, Homburg, Germany
| | - Mathias Montenarh
- Medical Biochemistry and Molecular Biology, Saarland University, Homburg, Germany
| | - Mohamad Eid Hammadeh
- Department of Obstetrics, Gynecology & Assisted Reproduction Laboratory, Saarland University, Homburg, Germany
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19
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Deficiency of MTMR14 impairs male fertility in Mus musculus. PLoS One 2018; 13:e0206224. [PMID: 30412589 PMCID: PMC6226155 DOI: 10.1371/journal.pone.0206224] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 10/09/2018] [Indexed: 12/16/2022] Open
Abstract
Calcium signalling is critical for successful fertilization. In spermatozoa, capacitation, hyperactivation of motility and acrosome reactions are all mediated by increases in intracellular Ca2+. Our previous reports have shown that deficiency of MTMR14, a novel phosphoinositide phosphatase, induces a muscle disorder by disrupting Ca2+ homeostasis. Recently, we found that MTMR14 is also expressed in the testes; however, whether deficiency of MTMR14 in the testes also alters the Ca2+ concentration and impairs male fertility remains entirely unknown. In the present study, we found that MTMR14 is also expressed in the testes and mature sperm cells, suggesting that deficiency of MTMR14 might have some effect on male fertility. Both in vivo fertility and in vitro fertilization tests were then performed, and we found that MTMR14-/- male mice showed decreased fertility. A series of experiments were then arranged to test the testis and sperm parameters; we found that MTMR14 deficiency caused small size of the testes, small numbers of both total and immotile sperm, expanded membrane of sperm tail, a decreased proportion of acrosome reaction, and in contrast, an increased proportion of abnormal sperm and augmented apoptosis, etc. Further study also found that the muscle force of the vas deferens decreased significantly in KO mice. Intracellular calcium homeostasis in the testes and epididymis was impaired by MTMR14 deletion; moreover, the relative mRNA expression levels of Itpr1, Itpr2, and Ryr3 were dramatically decreased in MTMR14 KO mice. Thus, MTMR14 deletion impairs male fertility by causing decreased muscle force of the vas deferens and intracellular calcium imbalance.
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20
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Regulation of CATSPER1 expression by the testis-determining gene SRY. PLoS One 2018; 13:e0205744. [PMID: 30379860 PMCID: PMC6209213 DOI: 10.1371/journal.pone.0205744] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 09/03/2018] [Indexed: 11/19/2022] Open
Abstract
CATSPER1 gene encodes a pore-forming and pH-sensing subunit of the CatSper Ca2+- permeable channel, a protein in the flagellum essential for sperm hyperactivation. Previous studies have shown that the murine Catsper1 gene promoter is regulated by different Sox proteins. Likewise, it is acknowledged that the human CATSPER1 gene promoter sequence is enriched in potential interaction sites for the sex-determining region Y gene (SRY), which suggest a novel regulatory transcriptional mechanism for CatSper1 channel expression. Therefore, in this work, we sought to determine whether the human CATSPER1 gene expression is regulated by the SRY transcription factor. To this end, a series of deletions and mutations were introduced in the wild- type CATSPER1 gene promoter to eliminate the SRY sites, and the different constructs were tested for their ability to activate transcription in human embryonic kidney and murine spermatogonial germ cell lines (HEK-293 and GC1-spg, respectively) using luciferase assays. In addition, by using a strategy that combines electrophoretic mobility shift assays (EMSA) and chromatin immunoprecipitation (ChIP) we investigated whether the CATSPER1 gene expression is regulated by the SRY transcription factor both in vitro and in vivo. Our results show that the transcriptional factor SRY specifically binds to different sites in the promoter sequence and has the ability to control CATSPER1 gene transcription.
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21
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Arima H, Tsutsui H, Okamura Y. Conservation of the Ca 2+-permeability through the voltage sensor domain of mammalian CatSper subunit. Channels (Austin) 2018; 12:240-248. [PMID: 30001172 PMCID: PMC7560727 DOI: 10.1080/19336950.2018.1476791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 05/10/2018] [Indexed: 12/16/2022] Open
Abstract
Cation channel of Spermatozoa (CatSper) is one of the voltage-gated ion channels consisting of voltage sensor domains (VSDs) and pore-gate domains. CatSper is exclusively expressed in spermatozoa and indispensable for Ca2+ influx into cytosol. Recently, we have reported that the VSD of ascidian CatSper induces Ca2+-permeable pathways in heterologous expression systems. However, it is not known whether ion permeability through the VSD of CatSper is conserved in mammals. In the present study, electrophysiology and fluorometry in Xenopus oocytes revealed that Ca2+-permeable paths are also formed by expressing the VSD of murine CatSper. We also examined the permeability to monovalent cations other than Na+ in the VSD of ascidian CatSper.
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Affiliation(s)
- Hiroki Arima
- Department of Physiology, Graduate School of Medicine, Osaka University, Suita, OsakaJapan
| | - Hidekazu Tsutsui
- Department of Physiology, Graduate School of Medicine, Osaka University, Suita, OsakaJapan
- Department of Material Science, Japan Advanced Institute of Science and Technology, Nomi, IshikawaJapan
| | - Yasushi Okamura
- Department of Physiology, Graduate School of Medicine, Osaka University, Suita, OsakaJapan
- Graduate School of Frontier Biosciences, Osaka University, Suita, OsakaJapan
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22
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Cooper JC, Phadnis N. Parallel Evolution of Sperm Hyper-Activation Ca2+ Channels. Genome Biol Evol 2017; 9:1938-1949. [PMID: 28810709 PMCID: PMC5553355 DOI: 10.1093/gbe/evx131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2017] [Indexed: 01/06/2023] Open
Abstract
Sperm hyper-activation is a dramatic change in sperm behavior where mature sperm burst into a final sprint in the race to the egg. The mechanism of sperm hyper-activation in many metazoans, including humans, consists of a jolt of Ca2+ into the sperm flagellum via CatSper ion channels. Surprisingly, all nine CatSper genes have been independently lost in several animal lineages. In Drosophila, sperm hyper-activation is performed through the cooption of the polycystic kidney disease 2 (pkd2) Ca2+ channel. The parallels between CatSpers in primates and pkd2 in Drosophila provide a unique opportunity to examine the molecular evolution of the sperm hyper-activation machinery in two independent, nonhomologous calcium channels separated by > 500 million years of divergence. Here, we use a comprehensive phylogenomic approach to investigate the selective pressures on these sperm hyper-activation channels. First, we find that the entire CatSper complex evolves rapidly under recurrent positive selection in primates. Second, we find that pkd2 has parallel patterns of adaptive evolution in Drosophila. Third, we show that this adaptive evolution of pkd2 is driven by its role in sperm hyper-activation. These patterns of selection suggest that the evolution of the sperm hyper-activation machinery is driven by sexual conflict with antagonistic ligands that modulate channel activity. Together, our results add sperm hyper-activation channels to the class of fast evolving reproductive proteins and provide insights into the mechanisms used by the sexes to manipulate sperm behavior.
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23
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Catsper1 promoter is bidirectional and regulates the expression of a novel lncRNA. Sci Rep 2017; 7:13351. [PMID: 29042633 PMCID: PMC5645346 DOI: 10.1038/s41598-017-13867-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 10/03/2017] [Indexed: 11/10/2022] Open
Abstract
The Catsper1 gene, whose expression is restricted to male germ cells, has great importance in reproductive biology because of its function in sperm motility and fertilization. We previously reported that the promoter of this gene has transcriptional activity in either direction in a heterologous system. In the present study, we found that the Catsper1 promoter has in vitro transcriptional activity in either orientation in GC-1 spg mouse spermatogonial cells. The results also showed that this promoter regulates the expression of a new divergent Catsper1 gene named Catsper1au (Catsper1 antisense upstream transcript). Catsper1au is expressed in adult male mouse testis and liver tissues but not in female mouse liver or ovary tissues. In the testis, Catsper1au is expressed in embryos at 11.5 days post-coitum and from newborns to adults. This gene is also expressed in 1- to 3-week postnatal hearts and in 1-week to adult stage livers. The analysis of the 1402 bp whole genome sequence revealed that Catsper1au is an intronless and polyadenylated lncRNA, located in the nuclei of Sertoli and spermatogenic cells from adult testis. These data indicate that Catsper1au is divergently expressed from the Catsper1 promoter and could regulate gene expression during spermatogenesis.
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24
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Sun XH, Zhu YY, Wang L, Liu HL, Ling Y, Li ZL, Sun LB. The Catsper channel and its roles in male fertility: a systematic review. Reprod Biol Endocrinol 2017; 15:65. [PMID: 28810916 PMCID: PMC5558725 DOI: 10.1186/s12958-017-0281-2] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 08/03/2017] [Indexed: 12/22/2022] Open
Abstract
The Catsper channel is a sperm-specific, Ca2+-permeable, pH-dependent, and low voltage-dependent channel that is essential for the hyperactivity of sperm flagellum, chemotaxis towards the egg, capacitation and acrosome reaction. All of these physiological events require calcium entry into sperm cells. Remarkably, Catsper genes are exclusively expressed in the testis during spermatogenesis, and are sensitive to ion channel-induced pH change, such as NHEs, Ca2+ATPase, K+ channel, Hv1 channel and HCO3- transporters. Furthermore, the Catsper channel is regulated by some physiological stimulants, such as progesterone, cyclic nucleotides (e.g., cAMP, cGMP), zona pellucida (ZP) glycoproteins and bovine serum albumin (BSA). All of these factors normally stimulate Ca2+ entry into sperm through the Catsper channel. In addition, the Catsper channel may be a potential target for male infertility treatment or contraception. This review will focus on the structure, functions, regulation mechanisms and medicinal targets of the Catsper channel.
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Affiliation(s)
- Xiang-hong Sun
- grid.412521.1Department of pharmacy, the affiliated hospital of Qingdao University Medical College, Qingdao, 266555 China
| | - Ying-ying Zhu
- 0000 0001 0455 0905grid.410645.2Department of pharmacy, College of pharmacy of Qingdao University, Qingdao, China
| | - Lin Wang
- grid.412521.1Department of clinical laboratory, the affiliated hospital of Qingdao University Medical College, Qingdao, China
| | - Hong-ling Liu
- grid.412521.1Department of pharmacy, the affiliated hospital of Qingdao University Medical College, Qingdao, 266555 China
| | - Yong Ling
- grid.412521.1Department of pharmacy, the affiliated hospital of Qingdao University Medical College, Qingdao, 266555 China
| | - Zong-li Li
- grid.412521.1Department of pharmacy, the affiliated hospital of Qingdao University Medical College, Qingdao, 266555 China
| | - Li-bo Sun
- grid.412521.1Department of pharmacy, the affiliated hospital of Qingdao University Medical College, Qingdao, 266555 China
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25
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Mohammadi S, Gholamin M, Mansouri A, Mahmoodian RS, Babazadeh B, Kebriaei SM, Zibaei B, Roshanaei M, Daneshvar F, Khandehro M, Khodadadegan MA, Delshad A, Mohammadzadeh F, Mohammadi M, Sadeghi S, Shoeibi S, Boroumand-Noughabi S, Ghayour-Mobarhan M, Tavallaie S, Vafaei A, Ferns GAA. Effect of cadmium and nickel on expression of CatSper 1 and 2 genes in mice. TOXIN REV 2017. [DOI: 10.1080/15569543.2017.1350192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Shabnam Mohammadi
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehran Gholamin
- Division of Human Genetics, Immunology Research Center, Avicenna Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Atena Mansouri
- Student Research Commiitte, Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reyhaneh Sadat Mahmoodian
- Division of Human Genetics, Immunology Research Center, Avicenna Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Beheshte Babazadeh
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mehdi Kebriaei
- Student Research Committee, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Behdad Zibaei
- Student Research Committee, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Mohammad Roshanaei
- Student Research Committee, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Farzaneh Daneshvar
- Student Research Committee, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Mozhgan Khandehro
- Student Research Committee, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | | | - Ali Delshad
- Student Research Committee, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Fatemeh Mohammadzadeh
- Student Research Committee, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Maryam Mohammadi
- Department of Public Health, School of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeed Sadeghi
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sara Shoeibi
- Department of Medical Biotechnology, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Majid Ghayour-Mobarhan
- Biochemistry of Nutritional Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shima Tavallaie
- Biochemistry of Nutritional Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Azadeh Vafaei
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Yanagimachi R, Harumi T, Matsubara H, Yan W, Yuan S, Hirohashi N, Iida T, Yamaha E, Arai K, Matsubara T, Andoh T, Vines C, Cherr GN. Chemical and physical guidance of fish spermatozoa into the egg through the micropyle†,‡. Biol Reprod 2017; 96:780-799. [PMID: 28371886 PMCID: PMC6355103 DOI: 10.1093/biolre/iox015] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 03/13/2017] [Accepted: 03/21/2017] [Indexed: 02/06/2023] Open
Abstract
Eggs of teleost fish, unlike those of many other animals, allow sperm entry only at a single site, a narrow canal in the egg's chorion called the micropyle. In some fish (e.g., flounder, herring, and Alaska pollock), the micropyle is a narrow channel in the chorion, with or without a shallow depression around the outer opening of micropyle. In some other fish (e.g., salmon, pufferfish, cod, and medaka), the micropyle is like a funnel with a conical opening. Eggs of all the above fish have a glycoprotein tightly bound to the chorion surface around the micropyle. This glycoprotein directs spermatozoa into the micropylar canal in a Ca2+-dependent manner. This substance, called the micropylar sperm attractant or MISA, increases fertilization efficiency and is essential in herring. In flounder, salmon, and perhaps medaka, fertilization is possible without MISA, but its absence makes fertilization inefficient because most spermatozoa swim over the micropyle without entering it. The mechanism underlying sperm-MISA interactions is yet to be determined, but at least in herring the involvement of Ca2+ and K+ channel proteins, as well as CatSper and adenylyl cyclase, is very likely. In some other fish (e.g., zebrafish, loach, and goldfish), the chorion around the micropyle is deeply indented (e.g., zebrafish and loach) or it has radially or spirally arranged grooves around the outer opening of the micropyle (e.g., goldfish). MISA is absent from the eggs of these fish and sperm entry into micropylar canal seems to be purely physical.
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Affiliation(s)
- Ryuzo Yanagimachi
- Department of Anatomy, Biochemistry and Physiology, Institute for Biogenesis
Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii,
USA
| | - Tatsuo Harumi
- Department of Anatomy, Asahikawa Medical University, Asahikawa, Hokkaido,
Japan
| | - Hajime Matsubara
- Department of Aquatic Biology, Tokyo University of Agriculture, Abashiri,
Hokkaido, Japan
| | - Wei Yan
- Department of Physiology and Cell Biology, University of Nevada School of
Medicine, Reno, Nevada, USA
| | - Shuiqiao Yuan
- Department of Physiology and Cell Biology, University of Nevada School of
Medicine, Reno, Nevada, USA
| | - Noritaka Hirohashi
- Oki Marine Biological Station, Shimane University, Okino-shima, Shimane,
Japan
| | - Tomohiro Iida
- Oki Marine Biological Station, Shimane University, Okino-shima, Shimane,
Japan
| | - Etsuro Yamaha
- Nanae Fresh-water Laboratory, Field Science Center for Northern Biosphere,
Hokkaido University, Nanae, Hokkaido, Japan
| | - Katsutoshi Arai
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido,
Japan
| | - Takahiro Matsubara
- South Ehime Fishery Research Center, Ehime University, Ainan, Ehime,
Japan
| | - Tadashi Andoh
- Seikai National Fisheries Research Institute, Japan Fisheries Research and
Education Agency, Taira-machi, Nagasaki, Japan
| | - Carol Vines
- Bodega Marine Laboratory, University of California Davis, Bodega Bay,
California, USA
| | - Gary N. Cherr
- Bodega Marine Laboratory, University of California Davis, Bodega Bay,
California, USA
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Sivakumar A, Kumar S, Yathish HM, Mishra C, Modi RP, Chaudhary R, Khan S, Sivamani B, Ghosh SK, Sarkar M. Expression Profiling and Identification of Novel SNPs in CatSper2 Gene and Their Influence on Sperm Motility Parameters in Bovines. Anim Biotechnol 2017; 29:34-40. [DOI: 10.1080/10495398.2017.1294597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- A. Sivakumar
- Division of Animal Genetics, Indian Veterinary Research Institute, Izatnagar, India
| | - Subodh Kumar
- Division of Animal Genetics, Indian Veterinary Research Institute, Izatnagar, India
| | - H. M. Yathish
- Department of Animal Genetics and Breeding, Veterinary College, Bidar, India
| | - Chinmoy Mishra
- Department of Animal Breeding and Genetics, OUAT, Bhubaneswar, India
| | - Rajendra Prasad Modi
- Division of Animal Genetics, Indian Veterinary Research Institute, Izatnagar, India
| | - Rajni Chaudhary
- Division of Animal Genetics, Indian Veterinary Research Institute, Izatnagar, India
| | - Subuhi Khan
- Division of Animal Genetics, Indian Veterinary Research Institute, Izatnagar, India
| | - B. Sivamani
- Nutrition, Genetics and Biotechnology Division, Central Institute of Brackishwater Aquaculture, Chennai, India
| | - S. K. Ghosh
- Division of Animal Reproduction, Indian Veterinary Research Institute, Izatnagar, India
| | - Mihir Sarkar
- Division of Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, India
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Vicente-Carrillo A, Álvarez-Rodríguez M, Rodríguez-Martínez H. The CatSper channel modulates boar sperm motility during capacitation. Reprod Biol 2017; 17:69-78. [PMID: 28077244 DOI: 10.1016/j.repbio.2017.01.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/12/2016] [Accepted: 01/02/2017] [Indexed: 12/11/2022]
Abstract
The cation channel of sperm (CatSper) comprises four transmembrane subunits specifically expressed in human, equine, murine and ovine spermatozoa, apparently implicated in capacitation, hyperactivation and acrosome exocytosis. Western blotting and immunocytochemistry showed hereby that CatSper subunits are also present in boar spermatozoa, primarily over the sperm neck, tail and cytoplasmic droplets; albeit CatSper -1 presented in addition some distribution over the membrane of the acrosome and CatSper -2 and -4 over the membrane of the post-acrosome. The role of the Catsper channel in boar spermatozoa was investigated by extending the spermatozoa in media containing different calcium (Ca2+) availability and exposure to the capacitation-trigger bicarbonate, to progesterone or CatSper inhibitors (Mibefradil and NNC 55-0396), separately or sequentially, at physiological and toxicological doses. Extracellular Ca2+ availability, combined with bicarbonate exposure (capacitation-inducing conditions) decreased sperm motility, similarly to when spermatozoa incubated in capacitation-inducing conditions was exposed to Mibefradil and NNC 55-0396. Exposure of these spermatozoa to progesterone did not cause significant changes in sperm motility and nor did it revert its decrease induced by CatSper antagonists. In conclusion, the CatSper channel regulates sperm motility during porcine capacitation-related events in vitro.
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Shu F, Zhou X, Li F, Lu D, Lei B, Li Q, Yang Y, Yang X, Shi R, Mao X. Analysis of the correlation of CATSPER single nucleotide polymorphisms (SNPs) with idiopathic asthenospermia. J Assist Reprod Genet 2015; 32:1643-9. [PMID: 26354096 DOI: 10.1007/s10815-015-0548-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 07/23/2015] [Indexed: 12/12/2022] Open
Abstract
PURPOSE Idiopathic asthenospermia is the most common type of male infertility. Although the mechanisms causing asthenospermia are complex, recent studies have indicated an important role of cation channel of sperm (CATSPER) gene downregulation or abnormality in the etiology of idiopathic asthenospermia. METHODS In the present study, 192 patients with idiopathic asthenospermia and 288 healthy controls were enrolled, and a flight mass spectrometry using Sequenom's MassArray biochip system was applied for genotyping 16 CATSPER gene SNPs reported in the human single nucleotide polymorphism (SNP) database. RESULTS Our results indicated a correlation between CATSPER1 SNPs and idiopathic asthenospermia. In particular, the exonal SNP rs1893316 in CATSPER1 significantly correlated with idiopathic asthenospermia risk and is a potential important factor in determining an individual's genetic susceptibility to idiopathic asthenospermia. CONCLUSION These finding will help to further elucidate the role of CATSPER1 in idiopathic asthenospermia pathogenesis.
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Affiliation(s)
- Fangpeng Shu
- Department of Urology, NanFang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China
| | - Xumin Zhou
- Department of Urology, NanFang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China
| | - Fenxia Li
- School of Biotechnology, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China
| | - Daojun Lu
- Department of Urology, NanFang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China
| | - Bin Lei
- Department of Urology, NanFang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China
| | - Qi Li
- Department of Urology, NanFang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China
| | - Yu Yang
- Department of Urology, NanFang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China
| | - Xuexi Yang
- School of Biotechnology, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China.
| | - Rong Shi
- Institute of Genetic Engineering, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China.
| | - Xiangming Mao
- Department of Urology, NanFang Hospital, Southern Medical University, No. 1838, North Guangzhou Avenue, Guangzhou, 510515, Guangdong Province, China.
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Park EH, Kim DR, Kim HY, Park SK, Chang MS. Panax ginseng induces the expression of CatSper genes and sperm hyperactivation. Asian J Androl 2015; 16:845-51. [PMID: 24969054 PMCID: PMC4236327 DOI: 10.4103/1008-682x.129129] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The cation channel of sperm (CatSper) protein family plays important roles in male reproduction and infertility. The four members of this family are expressed exclusively in the testis and are localized differently in sperm. To investigate the effects of Panax ginseng treatment on the expression of CatSper genes and sperm hyperactivation in male mice, sperm motility and CatSper gene expression were assessed using a computer-assisted semen analysis system, a Fluoroskan Ascent microplate fluorometer to assess Ca2+ influx, real-time polymerase chain reaction, Western blotting and immunofluorescence. The results suggested that the Ca2+ levels of sperm cells treated with P. ginseng were increased significantly compared with the normal group. The P. ginseng-treated groups showed increased sperm motility parameters, such as the curvilinear velocity and amplitude of lateral head displacement. Taken together, the data suggest that CatSper messenger ribonucleic acid levels were increased significantly in mouse testes in the P. ginseng-treated group, as was the protein level, with the exception of CatSper2. In conclusion, P. ginseng plays an important role in improving sperm hyperactivation via CatSper gene expression.
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Affiliation(s)
| | | | | | | | - Mun Seog Chang
- Department of Prescriptionology, College of Korean Medicine, Kyung Hee Unversity, Seoul, Korea
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32
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Singh AP, Rajender S. CatSper channel, sperm function and male fertility. Reprod Biomed Online 2015; 30:28-38. [DOI: 10.1016/j.rbmo.2014.09.014] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 09/03/2014] [Accepted: 09/16/2014] [Indexed: 11/17/2022]
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Zeng XH, Navarro B, Xia XM, Clapham DE, Lingle CJ. Simultaneous knockout of Slo3 and CatSper1 abolishes all alkalization- and voltage-activated current in mouse spermatozoa. ACTA ACUST UNITED AC 2014; 142:305-13. [PMID: 23980198 PMCID: PMC3753610 DOI: 10.1085/jgp.201311011] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
During passage through the female reproductive tract, mammalian sperm undergo a maturation process termed capacitation that renders sperm competent to produce fertilization. Capacitation involves a sequence of changes in biochemical and electrical properties, the onset of a hyperactivated swimming behavior, and development of the ability to undergo successful fusion and penetration with an egg. In mouse sperm, the development of hyperactivated motility is dependent on cytosolic alkalization that then results in an increase in cytosolic Ca2+. The elevation of Ca2+ is thought to be primarily driven by the concerted interplay of two alkalization-activated currents, a K+ current (KSPER) composed of pore-forming subunits encoded by the Kcnu1 gene (also termed Slo3) and a Ca2+ current arising from a family of CATSPER subunits. After deletion of any of four CATSPER subunit genes (CATSPER1–4), the major remaining current in mouse sperm is alkalization-activated KSPER current. After genetic deletion of the Slo3 gene, KSPER current is abolished, but there remains a small voltage-activated K+ current hypothesized to reflect monovalent flux through CATSPER. Here, we address two questions. First, does the residual outward K+ current present in the Slo3 −/− sperm arise from CATSPER? Second, can any additional membrane K+ currents be detected in mouse sperm by patch-clamp methods other than CATSPER and KSPER? Here, using mice bred to lack both SLO3 and CATSPER1 subunits, we show conclusively that the voltage-activated outward current present in Slo3 −/− sperm is abolished when CATSPER is also deleted. Any leak currents that may play a role in setting the resting membrane potential in noncapacitated sperm are likely smaller than the pipette leak current and thus cannot be resolved within the limitation of the patch-clamp technique. Together, KSPER and CATSPER appear to be the sole ion channels present in mouse sperm that regulate membrane potential and Ca2+ influx in response to alkalization.
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Affiliation(s)
- Xu-Hui Zeng
- Institute of Life Science, Nanchang University, Nanchang, Jiangxi 330031, China
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Alexander SPH, Benson HE, Faccenda E, Pawson AJ, Sharman JL, Catterall WA, Spedding M, Peters JA, Harmar AJ. The Concise Guide to PHARMACOLOGY 2013/14: ion channels. Br J Pharmacol 2013; 170:1607-51. [PMID: 24528239 PMCID: PMC3892289 DOI: 10.1111/bph.12447] [Citation(s) in RCA: 224] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The Concise Guide to PHARMACOLOGY 2013/14 provides concise overviews of the key properties of over 2000 human drug targets with their pharmacology, plus links to an open access knowledgebase of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. The full contents can be found at http://onlinelibrary.wiley.com/doi/10.1111/bph.12444/full. Ion channels are one of the seven major pharmacological targets into which the Guide is divided, with the others being G protein-coupled receptors, ligand-gated ion channels, catalytic receptors, nuclear hormone receptors, transporters and enzymes. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading. A new landscape format has easy to use tables comparing related targets. It is a condensed version of material contemporary to late 2013, which is presented in greater detail and constantly updated on the website www.guidetopharmacology.org, superseding data presented in previous Guides to Receptors and Channels. It is produced in conjunction with NC-IUPHAR and provides the official IUPHAR classification and nomenclature for human drug targets, where appropriate. It consolidates information previously curated and displayed separately in IUPHAR-DB and the Guide to Receptors and Channels, providing a permanent, citable, point-in-time record that will survive database updates.
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Affiliation(s)
- Stephen PH Alexander
- School of Life Sciences, University of Nottingham Medical SchoolNottingham, NG7 2UH, UK
- *
Author for correspondence;
| | - Helen E Benson
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
| | - Elena Faccenda
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
| | - Adam J Pawson
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
| | - Joanna L Sharman
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
| | - William A Catterall
- University of Washington, School of Medicine, Department of PharmacologyBox 357280, Seattle, WA 98195-7280, USA
| | | | - John A Peters
- Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of DundeeDundee, DD1 9SY, UK
| | - Anthony J Harmar
- The University/BHF Centre for Cardiovascular Science, University of EdinburghEdinburgh, EH16 4TJ, UK
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Zheng LP, Wang HF, Li BM, Zeng XH. Sperm-specific ion channels: targets holding the most potential for male contraceptives in development. Contraception 2013; 88:485-91. [PMID: 23845210 DOI: 10.1016/j.contraception.2013.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 06/03/2013] [Accepted: 06/04/2013] [Indexed: 12/27/2022]
Abstract
There is a global need for an ideal method of male contraception. However, the development of male contraceptives has not been well successful. Research on sperm-specific ion channels, especially the recent advance obtained from electrophysiological studies, has emphasized the conception that those channels are targets with the most potential to develop non-hormonal male contraceptives. While summarizing the general options for male contraception, this review focuses on the properties and functions of sperm ion channels together with the attempts of utilizing these channels to develop male contraceptives. We believe that a deeper insight into the signaling and molecular mechanisms by which ion channels regulate sperm functions will pave the way for developing novel male-based contraceptives.
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Affiliation(s)
- Li-Ping Zheng
- Institute of Life Science, Nanchang University, Nanchang 330031, China.
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Ruark E, Seal S, McDonald H, Zhang F, Elliot A, Lau K, Perdeaux E, Rapley E, Eeles R, Peto J, Kote-Jarai Z, Muir K, Nsengimana J, Shipley J, Bishop DT, Stratton MR, Easton DF, Huddart RA, Rahman N, Turnbull C. Identification of nine new susceptibility loci for testicular cancer, including variants near DAZL and PRDM14. Nat Genet 2013; 45:686-9. [PMID: 23666240 PMCID: PMC3680037 DOI: 10.1038/ng.2635] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 04/10/2013] [Indexed: 01/16/2023]
Abstract
Testicular germ cell tumor (TGCT) is the most common cancer in young men and is notable for its high familial risks. So far, six loci associated with TGCT have been reported. From genome-wide association study (GWAS) analysis of 307,291 SNPs in 986 TGCT cases and 4,946 controls, we selected for follow-up 694 SNPs, which we genotyped in a further 1,064 TGCT cases and 10,082 controls from the UK. We identified SNPs at nine new loci (1q22, 1q24.1, 3p24.3, 4q24, 5q31.1, 8q13.3, 16q12.1, 17q22 and 21q22.3) showing association with TGCT (P < 5 × 10(-8)), which together account for an additional 4-6% of the familial risk of TGCT. The loci include genes plausibly related to TGCT development. PRDM14, at 8q13.3, is essential for early germ cell specification, and DAZL, at 3p24.3, is required for the regulation of germ cell development. Furthermore, PITX1, at 5q31.1, regulates TERT expression and is the third TGCT-associated locus implicated in telomerase regulation.
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Affiliation(s)
- Elise Ruark
- Division of Genetics and Epidemiology, Institute of Cancer Research, Sutton, UK
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Bhilawadikar R, Zaveri K, Mukadam L, Naik S, Kamble K, Modi D, Hinduja I. Levels of Tektin 2 and CatSper 2 in normozoospermic and oligoasthenozoospermic men and its association with motility, fertilization rate, embryo quality and pregnancy rate. J Assist Reprod Genet 2013; 30:513-23. [PMID: 23519396 DOI: 10.1007/s10815-013-9972-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Accepted: 03/04/2013] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To compare the expression profiles of Tektin 2 and CatSper 2 motility proteins in the spermatozoa of normozoospermic and oligoasthenozoospermic men and determine its correlation with sperm motility, fertilization rate, embryo quality and pregnancy rate. METHODS Tektin 2 and CatSper 2 protein expression was studied using Western Blotting and immunofluorescence. Tektin 2 and CatSper 2 protein levels were quantified by ELISA. RESULTS Oligoasthenozoospermic men were found to have lower fertilization rates, poor embryo quality and lower pregnancy rates as compared to normozoospermic men. The levels of Tektin 2 and CatSper 2 are significantly lower in spermatozoa of oligoasthenozoospermic men as compared to normozoospermic controls; the levels were also lower in immotile fraction as compared to motile fraction of spermatozoa obtained from normozoospermic individuals. The levels of Tektin 2 and CatSper 2 were higher in individuals demonstrating sperm motility >60 % as compared to sperm motility <30 %. Tektin 2 but not CatSper 2 levels were positively associated with fertilization rate, embryo quality and pregnancy rate. CONCLUSION Levels of Tektin 2 and CatSper 2 proteins are positively associated with sperm motility parameters. Measurements of Tektin 2 levels can be correlated with the clinical outcome of ICSI.
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Down-regulation of CatSper1 channel in epididymal spermatozoa contributes to the pathogenesis of asthenozoospermia, whereas up-regulation of the channel by Sheng-Jing-San treatment improves the sperm motility of asthenozoospermia in rats. Fertil Steril 2013; 99:579-87. [DOI: 10.1016/j.fertnstert.2012.10.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 10/11/2012] [Accepted: 10/17/2012] [Indexed: 01/05/2023]
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Raudsepp T, McCue ME, Das PJ, Dobson L, Vishnoi M, Fritz KL, Schaefer R, Rendahl AK, Derr JN, Love CC, Varner DD, Chowdhary BP. Genome-wide association study implicates testis-sperm specific FKBP6 as a susceptibility locus for impaired acrosome reaction in stallions. PLoS Genet 2012; 8:e1003139. [PMID: 23284302 PMCID: PMC3527208 DOI: 10.1371/journal.pgen.1003139] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 10/18/2012] [Indexed: 01/07/2023] Open
Abstract
Impaired acrosomal reaction (IAR) of sperm causes male subfertility in humans and animals. Despite compelling evidence about the genetic control over acrosome biogenesis and function, the genomics of IAR is as yet poorly understood, providing no molecular tools for diagnostics. Here we conducted Equine SNP50 Beadchip genotyping and GWAS using 7 IAR–affected and 37 control Thoroughbred stallions. A significant (P<6.75E-08) genotype–phenotype association was found in horse chromosome 13 in FK506 binding protein 6 (FKBP6). The gene belongs to the immunophilins FKBP family known to be involved in meiosis, calcium homeostasis, clathrin-coated vesicles, and membrane fusions. Direct sequencing of FKBP6 exons in cases and controls identified SNPs g.11040315G>A and g.11040379C>A (p.166H>N) in exon 4 that were significantly associated with the IAR phenotype both in the GWAS cohort (n = 44) and in a large multi-breed cohort of 265 horses. All IAR stallions were homozygous for the A-alleles, while this genotype was found only in 2% of controls. The equine FKBP6 was exclusively expressed in testis and sperm and had 5 different transcripts, of which 4 were novel. The expression of this gene in AC/AG heterozygous controls was monoallelic, and we observed a tendency for FKBP6 up-regulation in IAR stallions compared to controls. Because exon 4 SNPs had no effect on the protein structure, it is likely that FKBP6 relates to the IAR phenotype via regulatory or modifying functions. In conclusion, FKBP6 was considered a susceptibility gene of incomplete penetrance for IAR in stallions and a candidate gene for male subfertility in mammals. FKBP6 genotyping is recommended for the detection of IAR–susceptible individuals among potential breeding stallions. Successful use of sperm as a source of DNA and RNA propagates non-invasive sample procurement for fertility genomics in animals and humans. Impaired acrosomal reaction (IAR) of sperm causes male subfertility in humans and animals, and currently the molecular causes of the condition are not known. Here we report the mapping, identification, and functional analysis of a susceptibility locus for IAR in stallions. The candidate region was mapped to horse chromosome 13 by SNP genotyping and GWAS of 7 IAR affected and 44 control Thoroughbred stallions. Re-sequencing and case-control analysis of functionally relevant candidate genes in the region identified FKBP6 gene as a significantly associated locus. The association was confirmed by genotyping 265 male horses of multiple breeds. FKBP6 belongs to the immunophilins FKBP family known to be involved in meiosis, calcium homeostasis, clathrin-coated vesicles, and membrane fusions. We showed that the equine FKBP6 is exclusively and monoallelically expressed in testis and sperm and has 5 different transcripts, of which 4 were novel. Overall, FKBP6 was considered a susceptibility gene of incomplete penetrance for IAR in stallions and a candidate gene for male subfertility in other mammals. Successful use of sperm as a source of DNA and RNA propagates non-invasive sample procurement for fertility genomics in animals and humans.
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Affiliation(s)
- Terje Raudsepp
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, Texas, USA.
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Sánchez-Cárdenas C, Guerrero A, Treviño CL, Hernández-Cruz A, Darszon A. Acute slices of mice testis seminiferous tubules unveil spontaneous and synchronous Ca2+ oscillations in germ cell clusters. Biol Reprod 2012; 87:92. [PMID: 22914313 DOI: 10.1095/biolreprod.112.100255] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Spermatogenic cell differentiation involves changes in the concentration of cytoplasmic Ca(2+) ([Ca(2+)]i); however, very few studies exist on [Ca(2+)]i dynamics in these cells. Other tissues display Ca(2+) oscillations involving multicellular functional arrangements. These phenomena have been studied in acute slice preparations that preserve tissue architecture and intercellular communications. Here we report the implementation of intracellular Ca(2+) imaging in a sliced seminiferous tubule (SST) preparation to visualize [Ca(2+)]i changes of living germ cells in situ within the SST preparation. Ca(2+) imaging revealed that a subpopulation of male germ cells display spontaneous [Ca(2+)]i fluctuations resulting from Ca(2+) entry possibly throughout Ca(V)3 channels. These [Ca(2+)]i fluctuation patterns are also present in single acutely dissociated germ cells, but they differ from those recorded from germ cells in the SST preparation. Often, spontaneous Ca(2+) fluctuations of spermatogenic cells in the SST occur synchronously, so that clusters of cells can display Ca(2+) oscillations for at least 10 min. Synchronous Ca(2+) oscillations could be mediated by intercellular communication via gap junctions, although intercellular bridges could also be involved. We also observed an increase in [Ca(2+)]i after testosterone application, suggesting the presence of functional Sertoli cells in the SST. In summary, we believe that the SST preparation is suitable to explore the physiology of spermatogenic cells in their natural environment, within the seminiferous tubules, in particular Ca(2+) signaling phenomena, functional cell-cell communication, and multicellular functional arrangements.
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Affiliation(s)
- Claudia Sánchez-Cárdenas
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
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Li H, Ding X, Guo C, Guan H, Xiong C. Immunization of male mice with B-cell epitopes in transmembrane domains of CatSper1 inhibits fertility. Fertil Steril 2012; 97:445-52. [DOI: 10.1016/j.fertnstert.2011.11.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Revised: 11/29/2011] [Accepted: 11/29/2011] [Indexed: 01/04/2023]
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Zhang Z, Wang GL, Li HX, Li L, Cui QW, Wei CB, Zhou F. Regulation of fertilization in male rats by CatSper2 knockdown. Asian J Androl 2011; 14:301-9. [PMID: 22002435 DOI: 10.1038/aja.2011.118] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Interest in ion channels as drug targets for contraception has grown with the realization that certain ion channel subunits are located exclusively in sperm. Selective knockdown of ion channel subunits can lead to infertility without ill effects, and selective inhibitors and/or openers of these ion channels could interfere with sperm function. In this study, in vivo electroporation (EP) and rete testis microinjection-mediated plasmid DNA were adopted to silence CatSper2 expression, which is essential in sperm hyperactivation. The results showed that high transfection efficiency and expression were achieved by plasmid DNA that was directly injected into the rete testis. As a result of the expression of CatSper2 being blocked, the treatment group showed significantly lower (P<0.05) hyperactivation rate, fertilization rate in vitro, migration motility in viscoelastic solution and intracellular Ca(2+) peak. The low hyperactivation and fertilization rates lasted for 60 days. Meanwhile, analysis of the sperm survival rate and testis histology indicated that in vivo EP had no significant effect on the function of the testis, spermatogenesis or sperm activity. The present study demonstrated that it was feasible to achieve male contraception by silencing the expression of CatSper2, the key protein involved in sperm hyperactivation.
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Affiliation(s)
- Zhen Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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Song C, Gao B, Wu H, Xie Y, Wang X, Li B, Chen G, Mao J. Molecular cloning, spatial and temporal expression analysis of CatSper genes in the Chinese Meishan pigs. Reprod Biol Endocrinol 2011; 9:132. [PMID: 21970684 PMCID: PMC3198926 DOI: 10.1186/1477-7827-9-132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 10/04/2011] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Sperm ion channel proteins (CatSpers) are essential for sperm hyperactivated motility, and then penetration through the zona pellucida. The CatSper class of proteins have well been characterized in the mouse and human. However, such data for pigs are not available. In the present study, we cloned the porcine CatSper 1-4 genes, analysed their spatial expression in various organs and temporal expression in the testes from birth until sexual maturity in Meishan boars. METHODS Rapid amplification of cDNA ends (RACE) was performed to clone the full length cDNAs of porcine CatSper genes and bioinformatics analysis of inferred CatSper proteins was also determined. Various organs were collected from 150 day-old pigs to characterize the spatial expression of CatSper genes by qualitative reverse transcriptase polymerase chain reaction (RT-PCR), and testes from birth to 150 day-old boars were sampled to detect the temporal expression of CatSper genes by quantitative real-time RT-PCR. RESULTS The mRNA sequences of CatSper1 (2452 bp), CatSper2 (2038 bp), CatSper3 (1408 bp), and CatSper4 (1799 bp), including full length of cDNAs, 5' and 3' flanks, were obtained. The bioinformatics analysis indicated that coding regions spanning the ion transport domains were conserved for different species analyzed. Among the four CatSpers, CatSper2, 3, and 4 were more conserved across species, compared with CatSper1. In addition, six conservative trans-membrane domains, a pore forming motif, and a coiled-coil motif were also identified. The spatial analysis from different organs showed that CatSper1 was detected in both testes and hypothalamus, CatSper2 was restricted in testes only, CatSper4 was expressed in testes and rete testes; whereas CatSper3 was more ubiquitously. CatSper3 and CatSper4 transcripts were also detected in ejaculated sperm. At Days 1 and 30 of age, CatSper mRNAs exhibited only sparse expression in the testes. However, these transcripts highly expressed at Day 60 and onward till sexual maturity (Day 150 of age). CONCLUSIONS The spatial and temporal expression profiles of CatSper genes were reported herein for the first time in pigs. CatSper1, CatSper2 and CatSper4 were primarily expressed in testes, while CatSper3 transcript was prevalent in a variety of organs. CatSper3 and CatSper4 mRNAs were present in mature sperm cells. Substantial upregulation of CatSper genes was initiated at Day 60 and maintained this marked production until sexual maturity.
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Affiliation(s)
- Chengyi Song
- College of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Bo Gao
- College of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Han Wu
- College of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Yuxiu Xie
- College of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Xiaoyan Wang
- College of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Bichun Li
- College of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Guohong Chen
- College of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Jiude Mao
- Department of Animal Sciences, University of Missouri, Columbia, MO, 65211, USA
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Darszon A, Nishigaki T, Beltran C, Treviño CL. Calcium Channels in the Development, Maturation, and Function of Spermatozoa. Physiol Rev 2011; 91:1305-55. [DOI: 10.1152/physrev.00028.2010] [Citation(s) in RCA: 243] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A proper dialogue between spermatozoa and the egg is essential for conception of a new individual in sexually reproducing animals. Ca2+ is crucial in orchestrating this unique event leading to a new life. No wonder that nature has devised different Ca2+-permeable channels and located them at distinct sites in spermatozoa so that they can help fertilize the egg. New tools to study sperm ionic currents, and image intracellular Ca2+ with better spatial and temporal resolution even in swimming spermatozoa, are revealing how sperm ion channels participate in fertilization. This review critically examines the involvement of Ca2+ channels in multiple signaling processes needed for spermatozoa to mature, travel towards the egg, and fertilize it. Remarkably, these tiny specialized cells can express exclusive channels like CatSper for Ca2+ and SLO3 for K+, which are attractive targets for contraception and for the discovery of novel signaling complexes. Learning more about fertilization is a matter of capital importance; societies face growing pressure to counteract rising male infertility rates, provide safe male gamete-based contraceptives, and preserve biodiversity through improved captive breeding and assisted conception initiatives.
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Affiliation(s)
- Alberto Darszon
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Takuya Nishigaki
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Carmen Beltran
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Claudia L. Treviño
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
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Bao J, Wu Q, Song R, Jie Z, Zheng H, Xu C, Yan W. RANBP17 is localized to the XY body of spermatocytes and interacts with SPEM1 on the manchette of elongating spermatids. Mol Cell Endocrinol 2011; 333:134-42. [PMID: 21184802 PMCID: PMC3039071 DOI: 10.1016/j.mce.2010.12.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Revised: 12/04/2010] [Accepted: 12/14/2010] [Indexed: 11/28/2022]
Abstract
We identified Ran-binding protein 17 (RANBP17) as one of the interacting partners of sperm maturation 1 (SPEM1) using yeast 2-hybrid screening and immunoprecipitation assays. Expression profiling analyses suggested that RANBP17 was preferentially expressed in the testis. Immunofluorescent confocal microscopy revealed a dynamic localization pattern of RANBP17 during spermatogenesis. In primary spermatocytes RANBP17 was mainly localized to the XY body. In the subsequent spermiogenesis, RANBP17 was first observed in the nuclei of round spermatids (steps 1-7) and then confined to the manchette of elongating spermatids (steps 8-14) together with its interacting partner SPEM1. In the Spem1-null testes, levels of RANBP17 were significantly elevated. As a member of a large protein family involved in the nucleocytoplasmic transport, RANBP17 may have a role in sex chromosome inactivation during the meiotic phase of spermatogenesis, and also in the intramanchette transport during spermiogenesis. Interactions between RANBP17 and SPEM1, for the first time, point to a potential function of SPEM1 in the RANBP17-mediated nucleocytoplasmic transport.
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Affiliation(s)
- Jianqiang Bao
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, USA
- Department of Embryology and Histology, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Reproductive Medicine, Shanghai, China
| | - Qiuxia Wu
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, USA
| | - Rui Song
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, USA
| | - Zhang Jie
- Department of Biochemistry, China Medical University, Shenyang, China
| | - Huili Zheng
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, USA
| | - Chen Xu
- Department of Embryology and Histology, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Reproductive Medicine, Shanghai, China
| | - Wei Yan
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, USA
- Corresponding author: Wei Yan MD, PhD Associate Professor Department of Physiology and Cell Biology University of Nevada School of Medicine Anderson Biomedical Science Building 105C/111 1664 North Virginia Street, MS 352 Reno, NV 89557 Tel: 775 784 7765 (Office) 775 784 4688 (Lab) Fax: 775 784 6903 URL: http://www.medicine.nevada.edu/physio/facyan.html
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Ren D, Xia J. Calcium signaling through CatSper channels in mammalian fertilization. Physiology (Bethesda) 2010; 25:165-75. [PMID: 20551230 DOI: 10.1152/physiol.00049.2009] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The molecular mechanisms underlying Ca(2+) entry into sperm are now much more well defined thanks to direct recordings of mature sperm cells. This article reviews the function of a sperm-specific ion channel, CatSper. CatSpers have a clearly defined function in sperm's hyperactivated motility and are essential for male fertility. We propose that physiological stimuli such as zona pellucida and cyclic nucleotides induce Ca(2+) entry through CatSper channels instead of acting on Ca(V) and CNG channels as previously thought.
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Affiliation(s)
- Dejian Ren
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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Yan W, Si Y, Slaymaker S, Li J, Zheng H, Young DL, Aslanian A, Saunders L, Verdin E, Charo IF. Zmynd15 encodes a histone deacetylase-dependent transcriptional repressor essential for spermiogenesis and male fertility. J Biol Chem 2010; 285:31418-26. [PMID: 20675388 DOI: 10.1074/jbc.m110.116418] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Spermatogenesis is a complex process through which male germ line stem cells undergo a multi-step differentiation program and sequentially become spermatogonia, spermatocytes, spermatids, and eventually spermatozoa. In this process, transcription factors act as switches that precisely regulate the expression of genes that in turn control the developmental program of male germ cells. Transcription factors identified to be essential for normal haploid gene expression all display transcription-activating effects and thus serve as the "on" switch for haploid gene expression. Here, we report that ZMYND15 acts as a histone deacetylase-dependent transcriptional repressor and controls normal temporal expression of haploid cell genes during spermiogenesis. Inactivation of Zmynd15 results in early activation of transcription of numerous important haploid genes including Prm1, Tnp1, Spem1, and Catpser3; depletion of late spermatids; and male infertility. ZMYND15 represents the first transcriptional repressor identified to be essential for sperm production and male fertility.
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Affiliation(s)
- Wei Yan
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada 89557, USA
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Hermo L, Pelletier RM, Cyr DG, Smith CE. Surfing the wave, cycle, life history, and genes/proteins expressed by testicular germ cells. Part 3: developmental changes in spermatid flagellum and cytoplasmic droplet and interaction of sperm with the zona pellucida and egg plasma membrane. Microsc Res Tech 2010; 73:320-63. [PMID: 19941287 DOI: 10.1002/jemt.20784] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Spermiogenesis constitutes the steps involved in the metamorphosis of spermatids into spermatozoa. It involves modification of several organelles in addition to the formation of several structures including the flagellum and cytoplasmic droplet. The flagellum is composed of a neck region and middle, principal, and end pieces. The axoneme composed of nine outer microtubular doublets circularly arranged to form a cylinder around a central pair of microtubules is present throughout the flagellum. The middle and principal pieces each contain specific components such as the mitochondrial sheath and fibrous sheath, respectively, while outer dense fibers are common to both. A plethora of proteins are constituents of each of these structures, with each playing key roles in functions related to the fertility of spermatozoa. At the end of spermiogenesis, a portion of spermatid cytoplasm remains associated with the released spermatozoa, referred to as the cytoplasmic droplet. The latter has as its main feature Golgi saccules, which appear to modify the plasma membrane of spermatozoa as they move down the epididymal duct and hence may be partly involved in male gamete maturation. The end product of spermatogenesis is highly streamlined and motile spermatozoa having a condensed nucleus equipped with an acrosome. Spermatozoa move through the female reproductive tract and eventually penetrate the zona pellucida and bind to the egg plasma membrane. Many proteins have been implicated in the process of fertilization as well as a plethora of proteins involved in the development of spermatids and sperm, and these are high lighted in this review.
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Affiliation(s)
- Louis Hermo
- Department of Anatomy and Cell Biology, Faculty of Medicine, McGill University, Montreal, Quebec, Canada H3A 2B2.
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Cheng CY, Mruk DD. New frontiers in nonhormonal male contraception. Contraception 2010; 82:476-82. [PMID: 20933122 DOI: 10.1016/j.contraception.2010.03.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Accepted: 03/23/2010] [Indexed: 12/11/2022]
Abstract
The world's population is nearing 6.8 billion, and we are in need of a male contraceptive that is safe, effective, reversible and affordable. Hormonal approaches, which employ different formulations of testosterone administered in combination with other hormones, have shown considerable promise in clinical trials, and they are currently at the forefront of research and development. However, the long-term effects of using hormones throughout a male's reproductive life for contraception are unknown, and it may take decades before this information becomes available. Because of this, many investigators are aiming to bring a nonhormonal male contraceptive to the consumer market. Indeed, there are several distinct but feasible avenues in which fertility can be regulated without affecting the hypothalamus-pituitary-testis axis. In this review, we discuss several approaches for fertility control involving the testis that one day may lead to the development of a nonhormonal male contraceptive.
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Affiliation(s)
- C Yan Cheng
- Center for Biomedical Research, Population Council, 1230 York Avenue, New York, NY 10065, USA.
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50
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Harper MJK. Family planning: today and in the future. Handb Exp Pharmacol 2010:225-258. [PMID: 20839094 DOI: 10.1007/978-3-642-02062-9_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This review covers the state of contraceptive development noting new entries in the clinic (mainly steroidal and different delivery methods) and novel leads for nonsteroidal female- and male-methods in the pipeline. The time taken to market and the absence of partnerships with industry are stressed as major factors for the slow progress in their development.
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Affiliation(s)
- Michael J K Harper
- Department of Obstetrics and Gynecology, Eastern Virginia Medical School, 1911 N. Fort Meyer Drive, Suite 900, Arlington, VA 22209, USA.
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