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Pyle LC, Kim J, Bradfield J, Damrauer SM, D'Andrea K, Einhorn LH, Godse R, Hakonarson H, Kanetsky PA, Kember RL, Jacobs LA, Maxwell KN, Rader DJ, Vaughn DJ, Weathers B, Wubbenhorst B, Regeneron Genetics Center Research Team, Cancer Genomics Research Laboratory, Greene MH, Nathanson KL, Stewart DR. Germline Exome Sequencing for Men with Testicular Germ Cell Tumor Reveals Coding Defects in Chromosomal Segregation and Protein-targeting Genes. Eur Urol 2024; 85:337-345. [PMID: 37246069 PMCID: PMC10676450 DOI: 10.1016/j.eururo.2023.05.008] [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: 11/30/2022] [Revised: 04/21/2023] [Accepted: 05/09/2023] [Indexed: 05/30/2023]
Abstract
BACKGROUND Testicular germ cell tumor (TGCT) is the most common cancer among young White men. TGCT is highly heritable, although there are no known high-penetrance predisposition genes. CHEK2 is associated with moderate TGCT risk. OBJECTIVE To identify coding genomic variants associated with predisposition to TGCT. DESIGN, SETTING, AND PARTICIPANTS The study involved 293 men with familial or bilateral (high risk; HR)-TGCT representing 228 unique families and 3157 cancer-free controls. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS We carried out exome sequencing and gene burden analysis to identify associations with TGCT risk. RESULTS AND LIMITATIONS Gene burden association identified several genes, including loss-of-function variants of NIN and QRSL1. We identified no statistically significant association with the sex- and germ-cell development pathways (hypergeometric overlap test: p = 0.65 for truncating variants, p = 0.47 for all variants) or evidence of associations with the regions previously identified via genome-wide association studies (GWAS). When considering all significant coding variants together with genes associated with TGCT on GWAS, there were associations with three major pathways: mitosis/cell cycle (Gene Ontology identity GO:1903047: observed/expected variant ratio [O/E] 6.17, false discovery rate [FDR] 1.53 × 10-11), co-translational protein targeting (GO:0006613: O/E 18.62, FDR 1.35 × 10-10), and sex differentiation (GO:0007548: O/E 5.25, FDR 1.90 × 10-4). CONCLUSIONS To the best of our knowledge, this study is the largest to date on men with HR-TGCT. As in previous studies, we identified associations with variants for several genes, suggesting multigenic heritability. We identified associations with co-translational protein targeting, and chromosomal segregation and sex determination, identified via GWAS. Our results suggest potentially druggable targets for TGCT prevention or treatment. PATIENT SUMMARY We searched for gene variations that increase the risk of testicular cancer and found numerous new specific variants that contribute to this risk. Our results support the idea that many gene variants inherited together contribute to the risk of testicular cancer.
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Affiliation(s)
- Louise C Pyle
- Rare Disease Institute, Center for Genetic Medicine, Children's National Hospital, Washington, DC, USA; Department of Precision Medicine, George Washington University, Washington, DC, USA; Division of Human Genetics, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jung Kim
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | | | - Scott M Damrauer
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kurt D'Andrea
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Rama Godse
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Hakon Hakonarson
- Division of Human Genetics, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Peter A Kanetsky
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Rachel L Kember
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Linda A Jacobs
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kara N Maxwell
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Daniel J Rader
- Division of Human Genetics, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - David J Vaughn
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Benita Weathers
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Bradley Wubbenhorst
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | | | - Mark H Greene
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Katherine L Nathanson
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Douglas R Stewart
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
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2
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Balagannavar G, Basavaraju K, Bajpai AK, Davuluri S, Kannan S, S Srini V, S Chandrashekar D, Chitturi N, K Acharya K. Transcriptomic analysis of the Non-Obstructive Azoospermia (NOA) to address gene expression regulation in human testis. Syst Biol Reprod Med 2023; 69:196-214. [PMID: 36883778 DOI: 10.1080/19396368.2023.2176268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
There is a need to understand the molecular basis of testes under Non-Obstructive Azoospermia (NOA), a state of failed spermatogenesis. There has been a lack of attention to the transcriptome at the level of alternatively spliced mRNAs (iso-mRNAs) and the mechanism of gene expression regulation. Hence, we aimed to establish a reliable iso-mRNA profile of NOA-testes, and explore molecular mechanisms - especially those related to gene expression regulation. We sequenced mRNAs from testicular samples of donors with complete spermatogenesis (control samples) and a failure of spermatogenesis (NOA samples). We identified differentially expressed genes and their iso-mRNAs via standard NGS data analyses. We then listed these iso-mRNAs hierarchically based on the extent of consistency of differential quantities across samples and groups, and validated the lists via RT-qPCRs (for 80 iso-mRNAs). In addition, we performed extensive bioinformatic analysis of the splicing features, domains, interactions, and functions of differentially expressed genes and iso-mRNAs. Many top-ranking down-regulated genes and iso-mRNAs, i.e., those down-regulated more consistently across the NOA samples, are associated with mitosis, replication, meiosis, cilium, RNA regulation, and post-translational modifications such as ubiquitination and phosphorylation. Most down-regulated iso-mRNAs correspond to full-length proteins that include all expected domains. The predominance of alternative promoters and termination sites in these iso-mRNAs indicate their gene expression regulation via promoters and UTRs. We compiled a new, comprehensive list of human transcription factors (TFs) and used it to identify TF-'TF gene' interactions with potential significance in down-regulating genes under the NOA condition. The results indicate that RAD51 suppression by HSF4 prevents SP1-activation, and SP1, in turn, could regulate multiple TF genes. This potential regulatory axis and other TF interactions identified in this study could explain the down-regulation of multiple genes in NOA-testes. Such molecular interactions may also have key regulatory roles during normal human spermatogenesis.
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Affiliation(s)
- Govindkumar Balagannavar
- Institute of Bioinformatics and Applied Biotechnology (IBAB), Bengaluru, Karnataka, India.,Research Scholar, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, India
| | - Kavyashree Basavaraju
- Institute of Bioinformatics and Applied Biotechnology (IBAB), Bengaluru, Karnataka, India.,BdataA: Biological data Analyzers' Association (virtual organization http://startbioinfo.com/BdataA/), India
| | - Akhilesh Kumar Bajpai
- BdataA: Biological data Analyzers' Association (virtual organization http://startbioinfo.com/BdataA/), India
| | - Sravanthi Davuluri
- BdataA: Biological data Analyzers' Association (virtual organization http://startbioinfo.com/BdataA/), India
| | - Shruthi Kannan
- Institute of Bioinformatics and Applied Biotechnology (IBAB), Bengaluru, Karnataka, India
| | - Vasan S Srini
- Manipal Fertility, Manipal Hospital, Bengaluru, Karnataka, India
| | | | - Neelima Chitturi
- BdataA: Biological data Analyzers' Association (virtual organization http://startbioinfo.com/BdataA/), India
| | - Kshitish K Acharya
- Institute of Bioinformatics and Applied Biotechnology (IBAB), Bengaluru, Karnataka, India.,BdataA: Biological data Analyzers' Association (virtual organization http://startbioinfo.com/BdataA/), India
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3
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Sedova AO, Shtaut MI, Bragina EE, Sorokina TM, Shmarina GV, Andreeva MV, Kurilo LF, Krasovskiy SA, Polyakov AV, Chernykh VB. Comprehensive semen examination in patients with pancreatic-sufficient and pancreatic-insufficient cystic fibrosis. Asian J Androl 2023; 25:370856. [PMID: 36891936 PMCID: PMC10521945 DOI: 10.4103/aja2022115] [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: 05/21/2022] [Accepted: 12/15/2022] [Indexed: 03/10/2023] Open
Abstract
We examined a cohort of 93 cystic fibrosis (CF) male patients who were pancreatic-sufficient (PS-CF; n=40) or pancreatic-insufficient (PI-CF; n = 53). Complex semen examination was performed, including standard semen analysis, quantitative karyological analysis (QKA) of immature germ cells (IGCs), transmission electronic microscopy (TEM), biochemical analysis, and sperm DNA fragmentation by terminal deoxynucleotidyl transferase-mediated dUTP nickend labeling (TUNEL) assay. Azoospermia was diagnosed in 83 (89.2%) patients. The other 10 (10.8%) patients were found to be nonazoospermic and showed various spermatological diagnoses (asthenozoospermia, n = 2; asthenoteratozoospermia, n = 3; oligoasthenozoospermia, n = 1; oligoasthenoteratozoospermia, n = 3; and normozoospermia, n = 1) with no specific morphological abnormalities. Oligospermia was detected in 89.2% azoospermic and 30.0% nonazoospermic patients. Low seminal pH (<7.0) was found in 74 (89.2%) of 83 azoospermic patients. Moderate leukocytospermia (2.0 × 10 6 -2.2 × 10 6 ml -1 ) was revealed in 2.4% azoospermic and 40.0% nonazoospermic semen samples. The signs of partial meiotic arrest at prophase I were found in 4 of 6 nonazoospermic patients examined by QKA of IGCs. The content of fructose and citrate was low in oligospermic and normal in nonoligospermic semen samples. An increased percentage (>30%) of spermatozoa with noncondensed ("immature") chromatin was revealed in 2 of 6 nonazoospermic semen samples analyzed by TEM.
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Affiliation(s)
- Anna O Sedova
- Research Centre for Medical Genetics, Moskvorechie Street 1, Moscow 115522, Russia
| | - Maria I Shtaut
- Research Centre for Medical Genetics, Moskvorechie Street 1, Moscow 115522, Russia
| | - Elizaveta E Bragina
- Research Centre for Medical Genetics, Moskvorechie Street 1, Moscow 115522, Russia
| | - Tatyana M Sorokina
- Research Centre for Medical Genetics, Moskvorechie Street 1, Moscow 115522, Russia
| | - Galina V Shmarina
- Research Centre for Medical Genetics, Moskvorechie Street 1, Moscow 115522, Russia
| | - Marina V Andreeva
- Research Centre for Medical Genetics, Moskvorechie Street 1, Moscow 115522, Russia
| | - Lyubov F Kurilo
- Research Centre for Medical Genetics, Moskvorechie Street 1, Moscow 115522, Russia
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4
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Soluble cyclase-mediated nuclear cAMP synthesis is sufficient for cell proliferation. Proc Natl Acad Sci U S A 2023; 120:e2208749120. [PMID: 36656863 PMCID: PMC9942871 DOI: 10.1073/pnas.2208749120] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
cAMP, a key player in many physiological processes, was classically considered to originate solely from the plasma membrane (PM). This view was recently challenged by observations showing that upon internalization GsPCRs can sustain signaling from endosomes and/or the trans-Golgi network (TGN). In this new view, after the first PM-generated cAMP wave, the internalization of GsPCRs and ACs generates a second wave that was strictly associated with nuclear transcriptional events responsible for triggering specific biological responses. Here, we report that the endogenously expressed TSHR, a canonical GsPCR, triggers an internalization-dependent, calcium-mediated nuclear sAC activation that drives PKA activation and CREB phosphorylation. Both pharmacological and genetic sAC inhibition, which did not affect the cytosolic cAMP levels, blunted nuclear cAMP accumulation, PKA activation, and cell proliferation, while an increase in nuclear sAC expression significantly enhanced cell proliferation. Furthermore, using novel nuclear-targeted optogenetic actuators, we show that light-stimulated nuclear cAMP synthesis can mimic the proliferative action of TSH by activating PKA and CREB. Therefore, based on our results, we propose a novel three-wave model in which the "third" wave of cAMP is generated by nuclear sAC. Despite being downstream of events occurring at the PM (first wave) and endosomes/TGN (second wave), the nuclear sAC-generated cAMP (third wave) is sufficient and rate-limiting for thyroid cell proliferation.
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5
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Sethi S, Mehta P, Pandey A, Gupta G, Rajender S. miRNA Profiling of Major Testicular Germ Cells Identifies Stage-Specific Regulators of Spermatogenesis. Reprod Sci 2022; 29:3477-3493. [PMID: 35715552 DOI: 10.1007/s43032-022-01005-x] [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: 03/18/2022] [Accepted: 06/07/2022] [Indexed: 12/14/2022]
Abstract
Spermatogenesis is tightly controlled at transcriptional, post-transcriptional, and epigenetic levels by various regulators, including miRNAs. This study deals with the identification of miRNAs critical to the three important stages of germ cell development (spermatocytes, round spermatids, and mature sperm) during spermatogenesis. We used high-throughput transcriptome sequencing to identify the differentially expressed miRNAs in the pachytene spermatocytes, round spermatids, and mature sperm of rat. We identified 1843 miRNAs that were differentially expressed across the three stages of germ cell development. These miRNAs were further categorized into three classes according to their pattern of expression during spermatogenesis: class 1 - miRNAs found exclusively in one stage and absent in the other two stages; class 2 - miRNAs found in any two stages but absent in the third stage; class 3 - miRNAs expressed in all the three stages. Six hundred forty-six miRNAs were found to be specific to one developmental stage, 443 miRNAs were found to be common across any two stages, and 754 miRNAs were common to all the three stages. Target prediction for ten most abundant miRNAs specific to each category identified miRNA regulators of mitosis, meiosis, and cell differentiation. The expression of each miRNA is specific to a particular developmental stage, which is required to maintain a significant repertoire of target mRNAs in the respective stage. Thus, this study provided valuable data that can be used in the future to identify the miRNAs involved in spermatogenic arrest at a particular stage of the germ cell development.
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Affiliation(s)
- Shruti Sethi
- CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research [AcSIR], Ghaziabad, India
| | - Poonam Mehta
- CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research [AcSIR], Ghaziabad, India
| | - Aastha Pandey
- CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research [AcSIR], Ghaziabad, India
| | - Gopal Gupta
- CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research [AcSIR], Ghaziabad, India
| | - Singh Rajender
- CSIR-Central Drug Research Institute, Lucknow, India.
- Academy of Scientific and Innovative Research [AcSIR], Ghaziabad, India.
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6
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Ribeiro JC, Bernardino RL, Carrageta DF, Soveral G, Calamita G, Alves MG, Oliveira PF. CFTR modulates aquaporin-mediated glycerol permeability in mouse Sertoli cells. Cell Mol Life Sci 2022; 79:592. [PMID: 36378343 DOI: 10.1007/s00018-022-04619-1] [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: 07/21/2022] [Revised: 10/10/2022] [Accepted: 10/31/2022] [Indexed: 11/16/2022]
Abstract
The cystic fibrosis transmembrane conductance regulator (CFTR) is an anion channel that is crucial for fluid homeodynamics throughout the male reproductive tract. Previous evidence shed light on a potential molecular partnership between this channel and aquaporins (AQPs). Herein, we explore the role of CFTR on AQPs-mediated glycerol permeability in mouse Sertoli cells (mSCs). We were able to identify the expression of CFTR, AQP3, AQP7, and AQP9 in mSCs by RT-PCR, Western blot, and immunofluorescence techniques. Cells were then treated with CFTRinh-172, a specific CFTR inhibitor, and its glycerol permeability was evaluated by stopped-flow light scattering. We observed that CFTR inhibition decreased glycerol permeability in mSCs by 30.6% when compared to the control group. A DUOLINK proximity ligation assay was used to evaluate the endogenous protein-protein interactions between CFTR and the various aquaglyceroporins we identified. We positively detected that CFTR is in close proximity with AQP3, AQP7, and AQP9 and that, through a possible physical interaction, CFTR can modulate AQP-mediated glycerol permeability in mSCs. As glycerol is essential for the control of the blood-testis barrier and elevated concentration in testis results in the disruption of spermatogenesis, we suggest that the malfunction of CFTR and the consequent alteration in glycerol permeability is a potential link between male infertility and cystic fibrosis.
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Affiliation(s)
- João C Ribeiro
- Department of Anatomy, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal.,LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Raquel L Bernardino
- Department of Anatomy, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal
| | - David F Carrageta
- Department of Anatomy, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal
| | - Graça Soveral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Giuseppe Calamita
- Department of Biosciences, Biotechnologies and Environment, University of Bari "Aldo Moro", Bari, Italy
| | - Marco G Alves
- Department of Anatomy, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, Porto, Portugal.,Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, 17003, Girona, Spain.,Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, 17003, Girona, Spain
| | - Pedro F Oliveira
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, Aveiro, Portugal.
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7
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Hadziselimovic F, Verkauskas G, Stadler M. A novel role for CFTR interaction with LH and FGF in azoospermia and epididymal maldevelopment caused by cryptorchidism. Basic Clin Androl 2022; 32:10. [PMID: 35725394 PMCID: PMC9210799 DOI: 10.1186/s12610-022-00160-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022] Open
Abstract
Cryptorchidism occurs frequently in children with cystic fibrosis. Among boys with cryptorchidism and abrogated mini-puberty, the development of the epididymis and the vas deferens is frequently impaired. This finding suggests that a common cause underlies the abnormal development of Ad spermatogonia and the epididymis. The cystic fibrosis transmembrane conductance regulator (CFTR) is an ATP-binding cassette transporter protein that acts as a chloride channel. The CFTR gene has been associated with spermatogenesis and male fertility. In boys with cryptorchidism, prepubertal hypogonadotropic hypogonadism induces suboptimal expression of the ankyrin-like protein gene, ASZ1, the P-element induced wimpy testis-like gene, PIWIL, and CFTR. The abrogated expression of these gene leads to transposon reactivation, and ultimately, infertility. Curative gonadotropin-releasing hormone agonist (GnRHa) treatment stimulates the expression of CFTR and PIWIL3, which play important roles in the development of Ad spermatogonia and fertility. Furthermore, GnRHa stimulates the expression of the epididymal androgen-sensitive genes, CRISP1, WFDC8, SPINK13, and PAX2, which thereby promotes epididymal development. This review focuses on molecular evidence that favors a role for CFTR in cryptorchidism-induced infertility. Based on information available in the literature, we interpreted our RNA-Seq expression data obtained from samples before and after randomized GnRHa treatment in boys with bilateral cryptorchidism. We propose that, in boys with cryptorchidism, CFTR expression is controlled by luteinizing hormone and testosterone. Moreover, CFTR regulates the activities of genes that are important for fertility and Wolffian duct differentiation.
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Affiliation(s)
- Faruk Hadziselimovic
- Cryptorchidism Research Institute, Children's Day Care Center Liestal, 4410, Liestal, Schweiz, Switzerland.
| | - Gilvydas Verkauskas
- Children's Surgery Centre, Faculty of Medicine, Vilnius University, 01513, Vilnius, Lithuania
| | - Michael Stadler
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland.,Faculty of Science, University of Basel, Basel, Switzerland
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8
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Hou JW, Li XL, Wang L, Dai CL, Li N, Jiang XH, Tan YQ, Tian EP, Li QT, Xu WM. Loss-of-function CFTR p.G970D missense mutation might cause congenital bilateral absence of the vas deferens and be associated with impaired spermatogenesis. Asian J Androl 2022; 25:58-65. [PMID: 35665694 PMCID: PMC9933970 DOI: 10.4103/aja202236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Congenital bilateral absence of the vas deferens (CBAVD) is observed in 1%-2% of males presenting with infertility and is clearly associated with cystic fibrosis transmembrane conductance regulator (CFTR) mutations. CFTR is one of the most well-known genes related to male fertility. The frequency of CFTR mutations or impaired CFTR expression is increased in men with nonobstructive azoospermia (NOA). CFTR mutations are highly polymorphic and have established ethnic specificity. Compared with F508Del in Caucasians, the p.G970D mutation is reported to be the most frequent CFTR mutation in Chinese patients with cystic fibrosis. However, whether p.G970D participates in male infertility remains unknown. Herein, a loss-of-function CFTR p.G970D missense mutation was identified in a patient with CBAVD and NOA. Subsequent retrospective analysis of 122 Chinese patients with CBAVD showed that the mutation is a common pathogenic mutation (4.1%, 5/122), excluding polymorphic sites. Furthermore, we generated model cell lines derived from mouse testes harboring the homozygous Cftr p.G965D mutation equivalent to the CFTR variant in patients. The Cftr p.G965D mutation may be lethal in spermatogonial stem cells and spermatogonia and affect the proliferation of spermatocytes and Sertoli cells. In spermatocyte GC-2(spd)ts (GC2) Cftr p.G965D cells, RNA splicing variants were detected and CFTR expression decreased, which may contribute to the phenotypes associated with impaired spermatogenesis. Thus, this study indicated that the CFTR p.G970D missense mutation might be a pathogenic mutation for CBAVD in Chinese males and associated with impaired spermatogenesis by affecting the proliferation of germ cells.
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Affiliation(s)
- Jian-Wen Hou
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China,Reproductive Medical Center, Chengdu Xi’nan Gynecology Hospital, Chengdu 610041, China
| | - Xiao-Liang Li
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China,Reproductive Medical Center of West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Li Wang
- Reproductive Medical Center, Gansu Provincial Maternal and Child-Care Hospital, Lanzhou 730050, China
| | - Cong-Ling Dai
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha 410000, China,Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha 410000, China
| | - Na Li
- Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Xiao-Hui Jiang
- Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Yue-Qiu Tan
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha 410000, China,Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha 410000, China,Clinical Research Center for Reproduction and Genetics in Hunan Province, Changsha 410000, China
| | - Er-Po Tian
- Reproductive Medical Center, Chengdu Xi’nan Gynecology Hospital, Chengdu 610041, China
| | - Qin-Tong Li
- Department of Obstetrics, Gynecology and Pediatrics, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu 610041, China,
Correspondence: Dr. QT Li () or Dr. WM Xu ()
| | - Wen-Ming Xu
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China,
Correspondence: Dr. QT Li () or Dr. WM Xu ()
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9
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Cheng H, Yang S, Meng Q, Zheng B, Gu Y, Wang L, Song T, Xu C, Wang G, Han M, Shen L, Ding J, Li H, Ouyang J. Genetic analysis and intracytoplasmic sperm injection outcomes of Chinese patients with congenital bilateral absence of vas deferens. J Assist Reprod Genet 2022; 39:719-728. [PMID: 35119551 PMCID: PMC8995229 DOI: 10.1007/s10815-022-02417-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 01/27/2022] [Indexed: 11/24/2022] Open
Abstract
PURPOSE Congenital bilateral absence of the vas deferens (CBAVD) is a major cause of obstructive azoospermia and male factor infertility. CBAVD is mainly caused by mutations in the genes encoding CFTR (cystic fibrosis transmembrane conductance regulator) and ADGRG2 (adhesion G protein-coupled receptor G2). This study aimed to describe CFTR and ADGRG2 variations in 46 Chinese CBAVD patients and evaluated sperm retrieval and assisted reproductive technology outcomes. METHODS The CFTR and ADGRG2 genes were sequenced and analyzed by whole-exome sequencing (WES), and variations were identified by Sanger sequencing. Bioinformatic analysis was performed. We retrospectively reviewed the outcomes of patients undergoing sperm retrieval surgery and intracytoplasmic sperm injection (ICSI). RESULTS In total, 35 of 46 (76.09%) patients carried at least one variation in CFTR, but no copy number variants or ADGRG2 variations were found. In addition to the IVS9-5 T allele, there were 27 CFTR variations, of which 4 variations were novel and predicted to be damaging by bioinformatics. Spermatozoa were successfully retrachieved in 46 patients, and 39 of the patients had their own offspring through ICSI. CONCLUSION There are no obvious hotspot CFTR mutations in Chinese CBAVD patients besides the IVS9-5 T allele. Therefore, WES might be the best detection method, and genetic counseling should be different from that provided to Caucasian populations. After proper counseling, all patients can undergo sperm retrieval from their epididymis or testis, and most of them can have their own children through ICSI.
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Affiliation(s)
- Hongbo Cheng
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou, 215000 Jiangsu China ,Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Shenmin Yang
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Qingxia Meng
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Bo Zheng
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Yidong Gu
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Luyun Wang
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Tao Song
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu China
| | - Chunlu Xu
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu China
| | - Gaigai Wang
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Mutian Han
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Liyan Shen
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Jie Ding
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Hong Li
- Center for Reproduction and Genetics, NHC Key Laboratory of Male Reproduction and Genetics, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China.
| | - Jun Ouyang
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China.
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10
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Li Q, Shen Y, Zhao LJ, Wang JB, Huang X. Mutations in CFTR genes are associated with oligoasthenospermia in infertile men undergoing IVF. Andrologia 2021; 54:e14355. [PMID: 34931337 DOI: 10.1111/and.14355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/05/2021] [Accepted: 12/07/2021] [Indexed: 11/29/2022] Open
Abstract
Cystic fibrosis transmembrane conductance regulator (CFTR) gene mutation has been clearly defined in congenital absence of the vas deferens (CAVD), which is an important cause of obstructive azoospermia. However, the association between oligoasthenospermia and CFTR gene mutation remains controversial. To confirm this issue, 151 infertile Chinese men were screened for CFTR mutation by NGS approach, including 18 CAVD patients, 72 patients with severe oligoasthenospermia and 61 controls with normal sperm parameters. Frequency of mutation in exons of CFTR gene were 66.7% in CAVD patients (12/18) (p < 0.001) and 8.33% in severe oligoasthenospermic patients (6/72) (p < 0.05), both of which were significantly more frequent than that in the controls (0/61). In terms of introns mutation of CFTR gene, there was no significant difference in frequency of 5T between oligoasthenospermic men (5/144, 3.47%) and the controls (4/122, 3.28%) (p = 0.645). In addition, 6 novel mutations in exons of CFTR gene in this study (c.3736A>G, c.635T>G, c.482delA, c.1858C>T, c.2042A>T, c.1586A>C) have not been reported in the Cystic Fibrosis Mutation Database before. Thus, our study provides evidence that CFTR gene mutation may be the aetiology of severe oligoasthenospermia other than CAVD. It may be necessary to screen for CFTR mutations in men with severe oligoasthenospermia before receiving assisted reproductive technology.
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Affiliation(s)
- Qiang Li
- Center of Reproductive Medicine, Shanxi Women and Children Health Hospital, Taiyuan, China
| | - Yan Shen
- Center of Reproductive Medicine, Shanxi Women and Children Health Hospital, Taiyuan, China
| | - Li Jiang Zhao
- Center of Reproductive Medicine, Shanxi Women and Children Health Hospital, Taiyuan, China
| | - Jin Bao Wang
- Center of Reproductive Medicine, Shanxi Women and Children Health Hospital, Taiyuan, China
| | - Xiang Huang
- Center of Reproductive Medicine, Shanxi Women and Children Health Hospital, Taiyuan, China
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11
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Shteinberg M, Taylor-Cousar JL, Durieu I, Cohen-Cymberknoh M. "Fertility and Pregnancy in Cystic fibrosis". Chest 2021; 160:2051-2060. [PMID: 34284004 DOI: 10.1016/j.chest.2021.07.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/22/2021] [Accepted: 07/12/2021] [Indexed: 11/16/2022] Open
Abstract
People with Cystic fibrosis (pwCF) have experienced increased survival and wellbeing in recent decades, such that more than half of those living with CF are adults. Consequently, sexual and reproductive health is increasingly important for pwCF as many are considering parenthood. Most men and some women with CF (wwCF) will have reduced fertility, which in both sexes is multifactorial. However, unplanned pregnancies in women are not rare, and contraception and its interaction with CF complications need to be addressed by the CF team. Reduced fertility may be overcome in most pwCF through use of assisted reproductive technologies; however, the risk of having offspring with CF must be considered. Most wwCF will have normal pregnancies, but premature birth is common especially in the setting of reduced lung function and CF related diabetes (CFRD); optimization of treatment is recommended during pregnancy planning. Parenting imposes an increased burden on pwCF, with the challenges of caring for the newborn, postpartum physiologic changes and maintaining CF treatments. Most drugs used to treat CF are considered safe in pregnancy and lactation, but exceptions need to be acknowledged, including the limited data regarding safety of CF transmembrane conductance regulator (CFTR) modulators during conception, pregnancy, and lactation. As most pwCF are eligible for highly effective CFTR modulators, fertility, contraception, and pregnancy in people with CF is changing. Prospective studies regarding these issues in people treated with CFTR modulators are paramount to provide evidence-based guidance for management in the current era of CF care.
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Affiliation(s)
- Michal Shteinberg
- Pulmonology Institute and CF Center, Carmel Medical Center and the Technion-Israel Institute of Technology, Haifa, Israel.
| | - Jennifer L Taylor-Cousar
- Divisions of Pulmonary, Critical Care and Sleep Medicine and Pediatric Pulmonary Medicine, National Jewish Health, Denver, CO
| | - Isabelle Durieu
- RESearch on HealthcAre PErformance (RESHAPE), Lyon University, Lyon, and Hospices Civils de Lyon, Lyon Sud Hospital, Cystic Fibrosis Center, Lyon, France
| | - Malena Cohen-Cymberknoh
- Pediatric Pulmonology Unit and Cystic Fibrosis Center, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Israel
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12
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Advances in the Regulation of Mammalian Follicle-Stimulating Hormone Secretion. Animals (Basel) 2021; 11:ani11041134. [PMID: 33921032 PMCID: PMC8071398 DOI: 10.3390/ani11041134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/13/2021] [Accepted: 04/13/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary The reproduction of mammals is regulated by the hypothalamic-pituitary-gonadal axis. Follicle stimulating hormone, as one of the gonadotropins secreted by the pituitary gland, plays an immeasurable role. This article mainly reviews the molecular basis and classical signaling pathways that regulate the synthesis and secretion of follicle stimulating hormone, and summarizes its internal molecular mechanism, which provides a certain theoretical basis for the research of mammalian reproduction regulation and the application of follicle stimulating hormone in production practice. Abstract Mammalian reproduction is mainly driven and regulated by the hypothalamic-pituitary-gonadal (HPG) axis. Follicle-stimulating hormone (FSH), which is synthesized and secreted by the anterior pituitary gland, is a key regulator that ultimately affects animal fertility. As a dimeric glycoprotein hormone, the biological specificity of FSH is mainly determined by the β subunit. As research techniques are being continuously innovated, studies are exploring the underlying molecular mechanism regulating the secretion of mammalian FSH. This article will review the current knowledge on the molecular mechanisms and signaling pathways systematically regulating FSH synthesis and will present the latest hypothesis about the nuclear cross-talk among the various endocrine-induced pathways for transcriptional regulation of the FSH β subunit. This article will provide novel ideas and potential targets for the improved use of FSH in livestock breeding and therapeutic development.
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13
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Chagay NB, Khayt GY, Vdovina TM, Shaforost AA. [Cystic fibrosis being a polyendocrine disease (Review)]. ACTA ACUST UNITED AC 2021; 67:28-39. [PMID: 34004101 PMCID: PMC8926149 DOI: 10.14341/probl12694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/22/2021] [Accepted: 03/30/2021] [Indexed: 11/06/2022]
Abstract
The cystic fibrosis transmembrane regulator (CFTR) gene encodes the synthesis of a protein of the same name, which functions as a direct activator of anionic transport. Chloride is the most abundant anion; as an antagonist of Na+ and K+, it provides electroneutrality of cell membranes at rest; together with cations, it serves as an important osmolyte and forms water flow across cell membranes for transepithelial secretion.Glandular cells in CF trap Cl- and Na+, and the prodused secretion is excessively viscous. Subnormal CFTR activity leads to stagnation of mucociliary clearance, inhibition of intestinal transport.In addition to exocrine disorders, CFTR mutations are associated with a decrease in volume, mass, increased apoptosis of β-cells of the pancreas, a significant suppression of insulin exocytosis in response to stimulation with glucose and glucagon-like peptide-1, hyperglucagonemia against the background of a defect in the suppression of α-cell function by insulin, but a decrease in maximum capacity α-cells.Deficiency and progressive decline in bone mineral density is an expected secondary manifestation of CF due to pancreatic exocrine insufficiency with malabsorption of nutrients and fat-soluble vitamins. However, in patients with the F508del mutation, a significant decrease in the synthesis of OPG, COX-2, PGE2 in the osteoblastic formation, and an increase in the activity of the antianabolic NF-kB were found. We are talking about a defect in the canonical signaling pathway (Wnt/β-catenin), which regulates the expression of genes-activators of osteoblastogenesis, dissociation of the stages of physiological bone remodeling.In addition to congenital bilateral or unilateral aplasia of the vas deferens, an increase in the frequency of CFTR mutations is also found in non-obstructive azoospermia, oligo-, astheno- and teratospermia. CFTR is involved in the entry of HCO3- into Sertoli cells to trigger cAMP-dependent transcription and its defects lead to suppression of FSH-dependent gene expression of spermatogenesis, loss of sequence in the Wnt cascade, destruction of the PGE2-dependent transepithelial interaction and, as a consequence, the blood-testicular barrier.CF is characterized, along with classical signs, by endocrine dysfunction of the pancreas, osteoporosis with suppression of osteoblastogenesis, and a defect in spermatogenesis.
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Affiliation(s)
- N B Chagay
- Stavropol Regional Clinical Consultative and Diagnostic Center; Stavropol State Medical University
| | - G Ya Khayt
- Stavropol Regional Clinical Consultative and Diagnostic Center; Stavropol State Medical University
| | - T M Vdovina
- Stavropol Regional Clinical Consultative and Diagnostic Center
| | - A A Shaforost
- Stavropol Regional Clinical Consultative and Diagnostic Center
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14
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Levkova M, Chervenkov T, Hachmeriyan M, Angelova L. CFTR gene variants as a reason for impaired spermatogenesis: a pilot study and a Meta-analysis of published data. HUM FERTIL 2021; 25:728-737. [PMID: 33719834 DOI: 10.1080/14647273.2021.1900608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
There is increasing data that IVS8-5T variand and TG repeats could lead to impaired spermatogenesis. To investigate this we performed Sanger sequencing on 50 Bulgarian men with a sperm count below 5 × 106/mL and 20 normal fertile men. Frequencies of the results were compared among the two groups. A meta-analysis was perfomed by using the data for 6,423 patients and 5,834 control subjects, tested for the IVS8-5T polymorphism. One case subject (2.0%) was homozygote for the 5 T/5T variant whereas two (4.0%) were heterozygotes for the 5 T/7T variant. No 5 T alleles were found in the control group. The genotypes of the two groups showed a statistically significant difference (p = 0.04, α < 0.05). Also, the odds ratio was 3.73, but this was unsignificant (p = 0.38). All control subjects had 11 TG repeats and for the test group: 47 (94.0%) men with 11 TG repeats and three (6.00%) with 10 TG repeats. Fisher's test showed no significant difference (p = 0.55). The meta-analysis showed that IVS8-5T variant was a risk factor for impaired spermatogenesis (OR = 2.84, p < 0.05) and this was more prominent for non-European (OR = 4.50, p < 0.05) compared to European (OR = 1.28, p < 0.05) men. The IVS8 - 5 T variant could be associated with disorders of sperm production.
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Affiliation(s)
- Mariya Levkova
- Department of Medical Genetics, Medical University Varna, Varna, Bulgaria.,Laboratory of Medical Genetics, St. Marina Hospital, Varna, Bulgaria
| | - Trifon Chervenkov
- Department of Medical Genetics, Medical University Varna, Varna, Bulgaria.,Laboratory of Clinical Immunology, St. Marina Hospital, Varna, Bulgaria
| | - Mari Hachmeriyan
- Department of Medical Genetics, Medical University Varna, Varna, Bulgaria.,Laboratory of Medical Genetics, St. Marina Hospital, Varna, Bulgaria
| | - Lyudmila Angelova
- Department of Medical Genetics, Medical University Varna, Varna, Bulgaria
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15
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McBride JA, Kohn TP, Mazur DJ, Lipshultz LI, Coward RM. Sperm retrieval and intracytoplasmic sperm injection outcomes in men with cystic fibrosis disease versus congenital bilateral absence of the vas deferens. Asian J Androl 2021; 23:140-145. [PMID: 32930103 PMCID: PMC7991824 DOI: 10.4103/aja.aja_48_20] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recent data suggest that cystic fibrosis transmembrane conductance regulator (CFTR) gene alterations negatively impact male fertility beyond obstruction. We sought to compare gene alterations, sperm retrieval rates, and intracytoplasmic sperm injection (ICSI) outcomes among men with cystic fibrosis (CF) disease and congenital bilateral absence of the vas deferens (CBAVD) only. We retrospectively evaluated all men who underwent surgical sperm retrieval at two academic, high-volume andrology centers from 2010 to 2018. Only men with documented CFTR alterations and obstructive azoospermia from either CBAVD or CF were included. Differences between groups for CFTR abnormality, sperm retrieval, and ICSI outcomes were statistically analyzed. Overall,39 patients were included with 10 in the CF and 29 in the CBAVD groups. Surgical sperm retrieval rates were significantly lower in the CF group for sperm concentration (14.8 × 106 ml-1vs 61.4 × 106 m-1, P = 0.02) and total motile sperm count (2.9 million vs 11.4 million, P = 0.01). This difference was only predicted by homozygous delta F508 CFTR mutations (P < 0.05). The CF group also demonstrated a significantly higher rate of rescue testicular sperm extraction (70.0% vs 27.6%, P < 0.03) and lower fertilization rate with ICSI (32.5% vs 68.9%, P < 0.01). In conclusion, those with CF demonstrated lower sperm quality, greater difficulty with sperm retrieval, and worse ICSI outcomes compared with CBAVD-only patients. Homozygous delta F508 CFTR mutations appear to significantly impair spermatogenesis and sperm function.
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Affiliation(s)
- J Abram McBride
- Scott Department of Urology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Taylor P Kohn
- Scott Department of Urology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Daniel J Mazur
- Scott Department of Urology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Larry I Lipshultz
- Scott Department of Urology, Baylor College of Medicine, Houston, TX 77030, USA
| | - R Matthew Coward
- Department of Urology, UNC School of Medicine, Chapel Hill, NC 27599, USA.,UNC Fertility, Raleigh, NC 27617, USA
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16
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Sperm ion channels and transporters in male fertility and infertility. Nat Rev Urol 2020; 18:46-66. [PMID: 33214707 DOI: 10.1038/s41585-020-00390-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2020] [Indexed: 12/16/2022]
Abstract
Mammalian sperm cells must respond to cues originating from along the female reproductive tract and from the layers of the egg in order to complete their fertilization journey. Dynamic regulation of ion signalling is, therefore, essential for sperm cells to adapt to their constantly changing environment. Over the past 15 years, direct electrophysiological recordings together with genetically modified mouse models and human genetics have confirmed the importance of ion channels, including the principal Ca2+-selective plasma membrane ion channel CatSper, for sperm activity. Sperm ion channels and membrane receptors are attractive targets for both the development of contraceptives and infertility treatment drugs. Furthermore, in this era of assisted reproductive technologies, understanding the signalling processes implicated in defective sperm function, particularly those arising from genetic abnormalities, is of the utmost importance not only for the development of infertility treatments but also to assess the overall health of a patient and his children. Future studies to improve reproductive health care and overall health care as a function of the ability to reproduce should include identification and analyses of gene variants that underlie human infertility and research into fertility-related molecules.
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17
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Sapio L, Salzillo A, Ragone A, Illiano M, Spina A, Naviglio S. Targeting CREB in Cancer Therapy: A Key Candidate or One of Many? An Update. Cancers (Basel) 2020; 12:cancers12113166. [PMID: 33126560 PMCID: PMC7693618 DOI: 10.3390/cancers12113166] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Only 5% of all drug-related targets currently move from preclinical to clinical in cancer, and just some of them achieve patient’s bedside. Among others, intratumor heterogeneity and preclinical cancer model limitations actually represent the main reasons for this failure. Cyclic-AMP response element-binding protein (CREB) has been defined as a proto-oncogene in different tumor types, being involved in maintenance and progression. Due to its relevance in tumor pathophysiology, many CREB inhibitor compounds have been developed and tested over the years. Herein, we examine the current state-of-the-art of both CREB and CREB inhibitors in cancer, retracing some of the most significant findings of the last years. While the scientific statement confers on CREB a proactive role in cancer, its therapeutic potential is still stuck at laboratory bench. Therefore, pursuing every concrete result to achieve CREB inhibition in clinical might give chance and future to cancer patients worldwide. Abstract Intratumor heterogeneity (ITH) is considered the major disorienting factor in cancer treatment. As a result of stochastic genetic and epigenetic alterations, the appearance of a branched evolutionary shape confers tumor plasticity, causing relapse and unfavorable clinical prognosis. The growing evidence in cancer discovery presents to us “the great paradox” consisting of countless potential targets constantly discovered and a small number of candidates being effective in human patients. Among these, cyclic-AMP response element-binding protein (CREB) has been proposed as proto-oncogene supporting tumor initiation, progression and metastasis. Overexpression and hyperactivation of CREB are frequently observed in cancer, whereas genetic and pharmacological CREB downregulation affects proliferation and apoptosis. Notably, the present review is designed to investigate the feasibility of targeting CREB in cancer therapy. In particular, starting with the latest CREB evidence in cancer pathophysiology, we evaluate the advancement state of CREB inhibitor design, including the histone lysine demethylases JMJD3/UTX inhibitor GSKJ4 that we newly identified as a promising CREB modulator in leukemia cells. Moreover, an accurate analysis of strengths and weaknesses is also conducted to figure out whether CREB can actually represent a therapeutic candidate or just one of the innumerable preclinical cancer targets.
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18
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Wu H, Gao Y, Ma C, Shen Q, Wang J, Lv M, Liu C, Cheng H, Zhu F, Tian S, Elshewy N, Ni X, Tan Q, Xu X, Zhou P, Wei Z, Zhang F, He X, Cao Y. A novel hemizygous loss-of-function mutation in ADGRG2 causes male infertility with congenital bilateral absence of the vas deferens. J Assist Reprod Genet 2020; 37:1421-1429. [PMID: 32314195 PMCID: PMC7311603 DOI: 10.1007/s10815-020-01779-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/08/2020] [Indexed: 11/26/2022] Open
Abstract
PURPOSE Cystic fibrosis transmembrane conductance regulator (CFTR) and adhesion G protein-coupled receptor G2 (ADGRG2) have been identified as the main pathogenic genes in congenital bilateral absence of the vas deferens (CBAVD), which is an important cause of obstructive azoospermia. This study aimed to identify the disease-causing gene in two brothers with CBAVD from a Chinese consanguineous family and reveal the intracytoplasmic sperm injection (ICSI) outcomes in these patients. METHODS Whole-exome sequencing and Sanger sequencing were used to identify the candidate pathogenic genes. Real-time polymerase chain reaction, immunohistochemistry, and immunofluorescence were used to assess the expression of the mutant gene. Moreover, the ICSI results from both patients were retrospectively reviewed. RESULTS A novel hemizygous loss-of-function mutation (c.G118T: p.Glu40*) in ADGRG2 was identified in both patients with CBAVD. This mutation is absent from the human genome databases and causes an early translational termination in the third exon of ADGRG2. Expression analyses showed that both the ADGRG2 mRNA and the corresponding protein were undetectable in the proximal epididymal tissue of ADGRG2-mutated patients. ADGRG2 expression was restricted to the apical membranes of non-ciliated epithelia in human efferent ducts, which was consistent with a previous report in mice. Both ADGRG2-mutated patients had normal spermatogenesis and had successful clinical outcomes following ICSI. CONCLUSIONS Our study verifies the pathogenic role of ADGRG2 in X-linked CBAVD and broadens the spectrum of ADGRG2 mutations. In addition, we found positive ICSI outcomes in the two ADGRG2-mutated CBAVD patients.
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Affiliation(s)
- Huan Wu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, China
| | - Yang Gao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, China
| | - Cong Ma
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, China
| | - Qunshan Shen
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
| | - Jiajia Wang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
| | - Mingrong Lv
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, China
| | - Chunyu Liu
- Obstetrics and Gynecology Hospital, School of Life Sciences, Fudan University, Shanghai, 200011, China
| | - Huiru Cheng
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei, 230032, China
| | - Fuxi Zhu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, China
| | - Shixiong Tian
- Obstetrics and Gynecology Hospital, School of Life Sciences, Fudan University, Shanghai, 200011, China
| | - Nagwa Elshewy
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
| | - Xiaoqing Ni
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
| | - Qing Tan
- Anhui Provincial Human Sperm Bank, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Xiaofeng Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, China
| | - Ping Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, China
| | - Zhaolian Wei
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, China
| | - Feng Zhang
- Obstetrics and Gynecology Hospital, School of Life Sciences, Fudan University, Shanghai, 200011, China
| | - Xiaojin He
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China.
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei, 230032, China.
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, China.
| | - Yunxia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, China.
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei, 230032, China.
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, China.
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Carrageta DF, Bernardino RL, Alves MG, Oliveira PF. CFTR regulation of aquaporin-mediated water transport. VITAMINS AND HORMONES 2020; 112:163-177. [PMID: 32061340 DOI: 10.1016/bs.vh.2019.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
The cystic fibrosis transmembrane conductance regulator (CFTR) is an anion channel responsible for the direct transport of bicarbonate and chloride. CFTR-dependent ionic transport is crucial for pH regulation and fluid homeodynamics among epithelial surfaces. Particularly, CFTR performs an essential role in the male reproductive tract, which requires a tight regulation of water and electrolytes in order to produce healthy spermatozoa. The absence or malfunction of CFTR results in cystic fibrosis, the most common lethal disease among Caucasians, that is characterized by an impaired fluid and ionic homeostasis in the whole organism. Due to the wide expression and importance of CFTR, the male reproductive tract is highly affected by cystic fibrosis, resulting in male infertility. Although CFTR is not permeable to water, this protein acts as a regulator of other protein channels, such as aquaporins. In fact, CFTR acts as a molecular partner of aquaporins in epithelial cells, regulating fluid homeodynamics. Herein, up-to-date data concerning the regulation of aquaporin-mediated water transport by CFTR will be discussed, highlighting the role of both channels in the male reproductive tract.
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Affiliation(s)
- David F Carrageta
- Department of Microscopy, Laboratory of Cell Biology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Raquel L Bernardino
- Department of Microscopy, Laboratory of Cell Biology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Marco G Alves
- Department of Microscopy, Laboratory of Cell Biology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Pedro F Oliveira
- Department of Microscopy, Laboratory of Cell Biology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal; Department of Genetics, Faculty of Medicine, University of Porto, Porto, Portugal; i3S-Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.
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20
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Wang H, An M, Liu Y, Hu K, Jin Y, Xu S, Chen B, Lu M. Genetic diagnosis and sperm retrieval outcomes for Chinese patients with congenital bilateral absence of vas deferens. Andrology 2020; 8:1064-1069. [PMID: 32020786 DOI: 10.1111/andr.12769] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 01/21/2020] [Accepted: 02/03/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Congenital bilateral absence of the vas deferens (CBAVD) is a frequent cause of obstructive azoospermia. CBAVD is mainly caused by mutations in the CFTR (cystic fibrosis transmembrane conductance regulator) gene and is also related to the X-linked ADGRG2 (adhesion G protein-coupled receptor G2) gene. Genetic screening and counseling strategies for Chinese CBAVD populations remain controversial because the genetic background of CBAVD in Chinese population is largely unknown. OBJECTIVES In this study, we aimed to study the mutation spectrum of CFTR and ADGRG2 in a group of CBAVD patients and to evaluate sperm retrieval outcomes in a subset of CBAVD patients. MATERIALS AND METHODS Next-generation targeted sequencing was used to identify mutations in the CFTR and ADGRG2 genes in 38 CBAVD patients. In addition, we followed and analyzed nine of the 38 patients who were undergoing sperm retrieval surgery. RESULTS In total, 27 of 38 (71.05%) patients carried at least one likely pathogenic or pathogenic mutation in CFTR or ADGRG2. In addition to the IVS9-5T allele, 15 CFTR and 1 ADGRG2 mutations were identified, including 4 novel mutations. CFTR hot-spot mutations were not identified in our study. Spermatozoon was successfully obtained in all nine patients who underwent MESA or TESE surgery, but most patients had spermatozoa with relatively low motility and high abnormality rates. DISCUSSION AND CONCLUSION Except for the IVS9-5T allele, hot-spot mutations of CFTR may not exist in Chinese CBAVD patients. Therefore, next-generation targeted sequencing for whole CFTR and ADGRG2 gene may be the appropriate genetic testing method, and genetic counseling may be different from Caucasian populations. We observed a high success rate of sperm retrieval with relatively low motility and high abnormality rates in Chinese CBAVD patients. However, this is only a weak conclusion due to the small sample size.
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Affiliation(s)
- Hongxiang Wang
- Department of Urology and Andrology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Miao An
- CarrierGene Biotechnologies Co., Ltd, Shanghai, China
| | - Yidong Liu
- Department of Urology and Andrology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kai Hu
- Department of Urology and Andrology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Jin
- Department of Urology and Andrology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shiran Xu
- Department of Urology and Andrology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Bin Chen
- Department of Urology and Andrology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Mujun Lu
- Department of Urology and Andrology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
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21
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Akmal M, Gholib G, Rinidar R, Fitriani F, Helmi TZ, Sugito S, Isa M, Nurliana N, Wahyuni S, Dasrul D, Yaman MA. The concentration of testosterone, pituitary adenylate cyclase-activating polypeptide, and protamine 1 in the serum of male chicken following administration of epididymis and testicular extracts and their combination. Vet World 2019; 12:1101-1107. [PMID: 31528039 PMCID: PMC6702581 DOI: 10.14202/vetworld.2019.1101-1107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/12/2019] [Indexed: 01/16/2023] Open
Abstract
Bakcground and Aim Testis and epididymis are male reproductive organs that play an important role in spermatogenesis. These two organs are rich in the content of hormones and other molecules needed in the process of spermatogenesis which affect the quality of the spermatozoa. The objective of this study was to examine the effect of the administration of epididymis and testicular extracts and their combination on testosterone, pituitary adenylate cyclase-activating polypeptide (PACAP), and protamine 1 (PRM1) concentrations in the serum of male chicken. Materials and Methods Twenty male chickens (broiler strain Cp707), aged 3 weeks and weighing 800-1000 g, were randomly divided into four different groups including a control group (T0) = injected with 1 ml normal saline and treatment groups: T1 = injected with 1 ml epididymis extract, T2 = injected with 1 ml testicular extract, and T3 = injected with a combination of 1 ml epididymis + 1 ml testicular extract. The experiment was conducted for 13 days and at the end of the study (day 14), the chickens were sacrificed to obtain the serum. Furthermore, the concentrations of testosterone, PACAP, and PRM1 were then measured by using an enzyme-linked immunosorbent assay technique. Results The concentrations of PACAP and PRM1 did not show a significant difference between treatment groups (T1, T2, and T3) and control group (T0) (p>0.05). However, the concentration of testosterone showed a significantly higher difference in a group injected with a combination of 1 ml epididymis and 1 ml testicular extracts (T3) compared to the control group (T0) (p<0.05). Conclusion The administration of epididymis and testicular extracts and their combination did not affect the increase of PACAP and PRM1 concentration. However, a combination of these extracts significantly affects the increase of testosterone concentration in the serum of male chicken.
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Affiliation(s)
- Muslim Akmal
- Laboratory of Histology, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - Gholib Gholib
- Laboratory of Physiology, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - Rinidar Rinidar
- Laboratory of Pharmacology, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - Fitriani Fitriani
- Laboratory of Histology, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - T Zahrial Helmi
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - Sugito Sugito
- Laboratory of Clinic, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - M Isa
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - Nurliana Nurliana
- Laboratory of Veterinary Public Health, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - Sri Wahyuni
- Laboratory of Anatomy, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - Dasrul Dasrul
- Laboratory of Reproduction, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
| | - M Aman Yaman
- Field Laboratory of Animal Sciences, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh, Indonesia
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Ghieh F, Mitchell V, Mandon-Pepin B, Vialard F. Genetic defects in human azoospermia. Basic Clin Androl 2019; 29:4. [PMID: 31024732 PMCID: PMC6477738 DOI: 10.1186/s12610-019-0086-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 03/07/2019] [Indexed: 02/07/2023] Open
Abstract
As with many other diseases, genetic testing in human azoospermia was initially restricted to karyotype analyses (leading to diagnostic chromosome rearrangement tests for Klinefelter and other syndromes). With the advent of molecular biology in the 1980s, genetic screening was broadened to analyses of Y chromosome microdeletions and the gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR). Decades later, the emergence of whole-genome techniques has led to the identification of other genetic defects associated with human azoospermia. Although TEX11 and ADGRG2 defects are frequently described in men with azoospermia, most of the causal gene defects found to date are private (i.e. identified in a small number of consanguineous families). Here, we provide an up-to-date overview of all the types of genetic defects known to be linked to human azoospermia and try to give clinical practice guidelines according to azoospermia phenotype. Along with homozygous mutations, polymorphisms and epigenetic defects are also briefly discussed. However, as these variations predispose to azoospermia, a specific review will be needed to compile data on all the particular genetic variations reported in the literature.
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Affiliation(s)
- Farah Ghieh
- 1EA7404-GIG, UFR des Sciences de la Santé Simone Veil, UVSQ, Montigny le Bretonneux, France
| | - Valérie Mitchell
- 2CHU Lille, Reproductive Biology Institute-Spermiologie-CECOS, Jeanne de Flandre Hospital, Lille, France.,3EA4308 "Gametogenesis and Gamete Quality", University of Lille, Lille, France
| | | | - François Vialard
- 1EA7404-GIG, UFR des Sciences de la Santé Simone Veil, UVSQ, Montigny le Bretonneux, France.,Genetics Division, CHI de Poissy St Germain en Laye, Poissy, France
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23
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Chen Y, Li X, Liao H, Leung X, He J, Wang X, Li F, Yue H, Xu W. CFTR mutation compromises spermatogenesis by enhancing miR-15b maturation and suppressing its regulatory target CDC25A†. Biol Reprod 2019; 101:50-62. [PMID: 30985893 DOI: 10.1093/biolre/ioz062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/17/2018] [Accepted: 04/14/2019] [Indexed: 01/27/2023] Open
Abstract
Abstract
MicroRNAs (miRNAs) have recently been shown to be important for spermatogenesis; both DROSHA and Dicer1 KO mice exhibit infertility due to abnormal miRNA expression. However, the roles of individual miRNAs in spermatogenesis remain elusive. Here we demonstrated that miR-15b, a member of the miR-15/16 family, is primarily expressed in testis. A miR-15b transgenic mouse model was constructed to investigate the role of miR-15b in spermatogenesis. Impaired spermatogenesis was observed in miR-15b transgenic mice, suggesting that appropriate expression of miR-15b is vital for spermatogenesis. Furthermore, we demonstrated that overexpression of miR-15b reduced CDC25A gene post-transcriptional activity by targeting the 3′-UTR region of CDC25A, thus regulating spermatogenesis. In vitro results further demonstrated that a mutation in CFTR could affect the interaction between Ago2 with Dicer1 and that Dicer1 activity regulates miR-15b expression. We extended our study to azoospermia patients and found that infertile patients have a significantly higher level of miR-15b in semen and plasma samples. Taken together, we propose that CFTR regulation of miR-15b could be involved in the post-transcriptional regulation of CDC25A in mammalian testis and that miR-15b is important for spermatogenesis.
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Affiliation(s)
- Yan Chen
- Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
| | - Xiaoliang Li
- Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
| | - Huijuan Liao
- Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
| | - Xiaotong Leung
- Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
- Epithelial Cell Biology Research Center, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Jiabei He
- Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
| | - Xiang Wang
- Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
| | - Fuping Li
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
- Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Huanxun Yue
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
- Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Wenming Xu
- Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
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24
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Asadi F, Mirfakhraie R, Mirzajani F, Khedri A. A Survey of the Common Mutations and IVS8-Tn Polymorphism of Cystic Fibrosis Transmembrane Conductance Regulator Gene in Infertile Men with Nonobstructive Azoospermia and CBAVD in Iranian Population. IRANIAN BIOMEDICAL JOURNAL 2019; 23:92-8. [PMID: 29986553 PMCID: PMC6707109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 04/18/2018] [Accepted: 05/27/2018] [Indexed: 10/14/2023]
Abstract
Background Studies have revealed a strong association between mutations of CFTR gene and the congenital bilateral absence of the vas deferens (CBAVD), but the role of this gene in other types of male infertility is still unclear. The purpose of this study was to investigate the frequency of the most common mutations of the CFTR gene (DF508, G542X, N1303K, G551D, and W1282X) in a population of infertile men with nonobstructive azoospermia (NOA) and CBAVD in Iran. Methods Blood samples were obtained from 50 NOA, 50 CBAVD, and 100 normal males (control). Genomic DNA was isolated from whole blood leukocytes, and the presence of common mutations of the CFTR gene was assessed by an amplification refractory mutation system-polymerase chain reaction (ARMS-PCR). Restriction fragment length polymorphism (PCR-RFLP) was also used to analyze IVS8-Tn polymorphism. Results It was found that 16%, 8%, and 8% of patients with CBAVD were heterozygote for DF508, G542X, and N1303K, respectively. The frequency of the 5T allele was 34% and higher than the normal group (p < 0.001). None of the common CFTR gene mutations were detected in NOA patients, and no significant difference was found in the distribution of the 5T allele between the NOA patients and the control group (5 vs. 3 p = 0.721). Conclusion Based on the present case-control study, the CFTR gene mutations and IVS8-Tn polymorphisms are correlated with CBAVD; however, extensive investigations are necessary to determine the exact relationship between the gene mutations and other forms of male infertility.
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Affiliation(s)
- Fatemeh Asadi
- Department of Molecular Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
- Department of Molecular Genetics, Science and Research Branch, Islamic Azad University, Fars, Iran
| | - Reza Mirfakhraie
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzaneh Mirzajani
- St. Justine Hospital, Montreal University, Montreal, Canada
- Medical Genetics Department of the National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Azam Khedri
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Science ,Tehran, Iran
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25
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Asadi F, Mirfakhraie R, Mirzajani F, Khedri A. A Survey of the Common Mutations and IVS8-Tn Polymorphism of Cystic Fibrosis Transmembrane Conductance Regulator Gene in Infertile Men with Nonobstructive Azoospermia and CBAVD in Iranian Population. IRANIAN BIOMEDICAL JOURNAL 2019. [PMID: 29986553 PMCID: PMC6707109 DOI: 10.29252/.23.2.92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Background Studies have revealed a strong association between mutations of CFTR gene and the congenital bilateral absence of the vas deferens (CBAVD), but the role of this gene in other types of male infertility is still unclear. The purpose of this study was to investigate the frequency of the most common mutations of the CFTR gene (DF508, G542X, N1303K, G551D, and W1282X) in a population of infertile men with nonobstructive azoospermia (NOA) and CBAVD in Iran. Methods Blood samples were obtained from 50 NOA, 50 CBAVD, and 100 normal males (control). Genomic DNA was isolated from whole blood leukocytes, and the presence of common mutations of the CFTR gene was assessed by an amplification refractory mutation system-polymerase chain reaction (ARMS-PCR). Restriction fragment length polymorphism (PCR-RFLP) was also used to analyze IVS8-Tn polymorphism. Results It was found that 16%, 8%, and 8% of patients with CBAVD were heterozygote for DF508, G542X, and N1303K, respectively. The frequency of the 5T allele was 34% and higher than the normal group (p < 0.001). None of the common CFTR gene mutations were detected in NOA patients, and no significant difference was found in the distribution of the 5T allele between the NOA patients and the control group (5 vs. 3 p = 0.721). Conclusion Based on the present case-control study, the CFTR gene mutations and IVS8-Tn polymorphisms are correlated with CBAVD; however, extensive investigations are necessary to determine the exact relationship between the gene mutations and other forms of male infertility.
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Affiliation(s)
- Fatemeh Asadi
- Department of Molecular Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran; ,Department of Molecular Genetics, Science and Research Branch, Islamic Azad University, Fars, Iran; ,Corresponding Author: Fatemeh Asadi, Department of Molecular Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran; Tel.: (+98-71) 43311172; Fax: (+98-71) 43112201.
E-mail:
| | - Reza Mirfakhraie
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzaneh Mirzajani
- St. Justine Hospital, Montreal University, Montreal, Canada;,Medical Genetics Department of the National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Azam Khedri
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Science ,Tehran, Iran
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Yefimova M, Bourmeyster N, Becq F, Burel A, Lavault MT, Jouve G, Veau S, Pimentel C, Jégou B, Ravel C. Update on the cellular and molecular aspects of cystic fibrosis transmembrane conductance regulator (CFTR) and male fertility. Morphologie 2018; 103:4-10. [PMID: 30528305 DOI: 10.1016/j.morpho.2018.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/09/2018] [Accepted: 11/06/2018] [Indexed: 12/15/2022]
Abstract
CFTR protein regulates electrolyte and fluid transport in almost all tissues with exocrine function, including male reproductive tract. Mutation of CFTR gene causes cystic fibrosis (CF), which affects the function of several organs, and impairs male fertility. The role of CFTR protein in different compartments of male reproductive tract (testis, epididymis, sperm) as well as an impact of CFTR mutation(s) on male fertility phenotype is discussed in relation with the choice of optimal technique for Assisted Reproductive Techniques (ART) management.
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Affiliation(s)
- M Yefimova
- Sechenov institute of evolutionary physiology and biochemistry, Russian academy of sciences, 44M. Thorez pr, 194223 St-Petersburg, Russia; Laboratoire STIM, université de Poitiers, 1, rue Georges-Bonnet, 86022 Poitiers cedex, France; Département de gynécologie obstétrique et reproduction humaine - CECOS, CHU de Rennes, 16, boulevard de Bulgarie, 35000 Rennes, France.
| | - N Bourmeyster
- Laboratoire STIM, université de Poitiers, 1, rue Georges-Bonnet, 86022 Poitiers cedex, France.
| | - F Becq
- Laboratoire STIM, université de Poitiers, 1, rue Georges-Bonnet, 86022 Poitiers cedex, France.
| | - A Burel
- Plateforme de MRIC TEM cellulaire, BIOSIT, Université Rennes 1, 2, avenue du Pr Léon-Bernard, 35000 Rennes, France.
| | - M-T Lavault
- Plateforme de MRIC TEM cellulaire, BIOSIT, Université Rennes 1, 2, avenue du Pr Léon-Bernard, 35000 Rennes, France.
| | - G Jouve
- Département de gynécologie obstétrique et reproduction humaine - CECOS, CHU de Rennes, 16, boulevard de Bulgarie, 35000 Rennes, France.
| | - S Veau
- Département de gynécologie obstétrique et reproduction humaine - CECOS, CHU de Rennes, 16, boulevard de Bulgarie, 35000 Rennes, France.
| | - C Pimentel
- Département de gynécologie obstétrique et reproduction humaine - CECOS, CHU de Rennes, 16, boulevard de Bulgarie, 35000 Rennes, France.
| | - B Jégou
- Inserm, université Rennes, EHESP, Irset (Instiut de recherche en santé,environnement et travail)-UMR_S1085, 35000 Rennes, France; Université de Rennes 1, 2, avenue du Pr Léon-Bernard, 35000 Rennes, France.
| | - C Ravel
- Département de gynécologie obstétrique et reproduction humaine - CECOS, CHU de Rennes, 16, boulevard de Bulgarie, 35000 Rennes, France; Inserm, université Rennes, EHESP, Irset (Instiut de recherche en santé,environnement et travail)-UMR_S1085, 35000 Rennes, France; Université de Rennes 1, 2, avenue du Pr Léon-Bernard, 35000 Rennes, France.
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Liao H, Chen Y, Li Y, Xue S, Liu M, Lin Z, Liu Y, Chan HC, Zhang X, Sun H. CFTR is required for the migration of primordial germ cells during zebrafish early embryogenesis. Reproduction 2018; 156:261-268. [PMID: 29930176 PMCID: PMC6106808 DOI: 10.1530/rep-17-0681] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 06/21/2018] [Indexed: 12/12/2022]
Abstract
Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene affect fertility in both sexes. However, the involvement of CFTR in regulating germ cell development remains largely unknown. Here, we used zebrafish model to investigate the role of CFTR in primordial germ cells (PGCs) development. We generated a cftr frameshift mutant zebrafish line using CRISPR/Cas9 technique and investigated the migration of PGCs during early embryo development. Our results showed that loss of Cftr impairs the migration of PGCs from dome stages onward. The migration of PGCs was also perturbed by treatment of CFTRinh-172, a gating-specific CFTR channel inhibitor. Moreover, defected PGCs migration in cftr mutant embryos can be partially rescued by injection of WT but not other channel-defective mutant cftr mRNAs. Finally, we observed the elevation of cxcr4b, cxcl12a, rgs14a and ca15b, key factors involved in zebrafish PGCs migration, in cftr-mutant zebrafish embryos. Taken together, the present study revealed an important role of CFTR acting as an ion channel in regulating PGCs migration during early embryogenesis. Defect of which may impair germ cell development through elevation of key factors involved in cell motility and response to chemotactic gradient in PGCs.
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Affiliation(s)
- Huijuan Liao
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Yan Chen
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Yulong Li
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
- The School of Life ScienceShandong University, Jinan, Shandong, People’s Republic of China
| | - Shaolong Xue
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
- Epithelial Cell Biology Research CenterSchool of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, People’s Republic of China
| | - Mingfeng Liu
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of EducationCollege of Life Science, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Ziyuan Lin
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Yanyan Liu
- Prenatal Diagnosis CenterDepartment of Obstetrics & Gynecologic, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Hsiao Chang Chan
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
- Epithelial Cell Biology Research CenterSchool of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, People’s Republic of China
| | - Xiaohu Zhang
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Huaqin Sun
- SCU-CUHK Joint Laboratory for Reproductive MedicineKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
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Huang WQ, Guo JH, Yuan C, Cui YG, Diao FY, Yu MK, Liu JY, Ruan YC, Chan HC. Abnormal CFTR Affects Glucagon Production by Islet α Cells in Cystic Fibrosis and Polycystic Ovarian Syndrome. Front Physiol 2017; 8:835. [PMID: 29204121 PMCID: PMC5698272 DOI: 10.3389/fphys.2017.00835] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/09/2017] [Indexed: 12/26/2022] Open
Abstract
Glucagon, produced by islet α cells, functions to increase blood glucose. Abnormal glucose levels are often seen in cystic fibrosis (CF), a systematic disease caused by mutations of the CF transmembrane conductance regulator (CFTR), and in polycystic ovarian syndrome (PCOS), an endocrine disorder featured with hyperandrogenism affecting 5-10% women of reproductive age. Here, we explored the role of CFTR in glucagon production in α cells and its possible contribution to glucagon disturbance in CF and PCOS. We found elevated fasting glucagon levels in CFTR mutant (DF508) mice compared to the wildtypes. Glucagon and prohormone convertase 2 (PC2) were also upregulated in CFTR inhibitor-treated or DF508 islets, as compared to the controls or wildtypes, respectively. Dihydrotestosterone (DHT)-induced PCOS rats exhibited significantly lower fasting glucagon levels with higher CFTR expression in α cells compared to that of controls. Treatment of mouse islets or αTC1-9 cells with DHT enhanced CFTR expression and reduced the levels of glucagon and PC2. The inhibitory effect of DHT on glucagon production was blocked by CFTR inhibitors in mouse islets, and mimicked by overexpressing CFTR in αTC1-9 cells with reduced phosphorylation of the cAMP/Ca2+ response element binding protein (p-CREB), a key transcription factor for glucagon and PC2. These results revealed a previously undefined role of CFTR in suppressing glucagon production in α-cells, defects in which may contribute to glucose metabolic disorder seen in CF and PCOS.
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Affiliation(s)
- Wen Qing Huang
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Jing Hui Guo
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, China
| | - Chun Yuan
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yu Gui Cui
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Fei Yang Diao
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Mei Kuen Yu
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Jia Yin Liu
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Ye Chun Ruan
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Hsiao Chang Chan
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
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Chen H, Chan HC. Amplification of FSH signalling by CFTR and nuclear soluble adenylyl cyclase in the ovary. Clin Exp Pharmacol Physiol 2017; 44 Suppl 1:78-85. [PMID: 28345252 DOI: 10.1111/1440-1681.12756] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 03/14/2017] [Accepted: 03/14/2017] [Indexed: 12/12/2022]
Abstract
The cAMP/PKA pathway is one of the most important signalling pathways widely distributed in most eukaryotic cells. The activation of the canonical cAMP/PKA pathway depends on transmembrane adenylyl cyclase (tmAC). Recently, soluble adenylyl cyclase (sAC), which is activated by HCO3- or Ca2+ , emerges to provide an alternative way to activate cAMP/PKA pathway with the cystic fibrosis transmembrane conductance regulator (CFTR), a cAMP-activated Cl- /HCO3- -conducting anion channel, as a key player. This review summarizes new progress in the investigation of the CFTR/HCO3- -dependent sAC signalling and its essential role in various reproductive processes, particularly in ovarian functions. We present the evidence for a CFTR/HCO3- -dependent nuclear sAC signalling cascade that amplifies the FSH-stimulated cAMP/PKA pathway, traditionally thought to involve tmAC, in granulosa for the regulation of oestrogen production and granulosa cell proliferation. The implication of the CFTR/HCO3- /sAC pathway in amplifying other receptor-activated cAMP/PKA signalling in a wide variety of cell types and pathophysiological processes, including aging, is also discussed.
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Affiliation(s)
- Hui Chen
- Epithelial Cell Biology Research Center, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Sha Tin, NT, Hong Kong SAR, China
| | - Hsiao Chang Chan
- Epithelial Cell Biology Research Center, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Sha Tin, NT, Hong Kong SAR, China
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Cook DP, Adam RJ, Zarei K, Deonovic B, Stroik MR, Gansemer ND, Meyerholz DK, Au KF, Stoltz DA. CF airway smooth muscle transcriptome reveals a role for PYK2. JCI Insight 2017; 2:95332. [PMID: 28878137 DOI: 10.1172/jci.insight.95332] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 07/27/2017] [Indexed: 12/17/2022] Open
Abstract
Abnormal airway smooth muscle function can contribute to cystic fibrosis (CF) airway disease. We previously found that airway smooth muscle from newborn CF pigs had increased basal tone, an increased bronchodilator response, and abnormal calcium handling. Since CF pigs lack airway infection and inflammation at birth, these findings suggest intrinsic airway smooth muscle dysfunction in CF. In this study, we tested the hypothesis that CFTR loss in airway smooth muscle would produce a distinct set of changes in the airway smooth muscle transcriptome that we could use to develop novel therapeutic targets. Total RNA sequencing of newborn wild-type and CF airway smooth muscle revealed changes in muscle contraction-related genes, ontologies, and pathways. Using connectivity mapping, we identified several small molecules that elicit transcriptional signatures opposite of CF airway smooth muscle, including NVP-TAE684, an inhibitor of proline-rich tyrosine kinase 2 (PYK2). In CF airway smooth muscle tissue, PYK2 phosphorylation was increased and PYK2 inhibition decreased smooth muscle contraction. In vivo NVP-TAE684 treatment of wild-type mice reduced methacholine-induced airway smooth muscle contraction. These findings suggest that studies in the newborn CF pig may provide an important approach to enhance our understanding of airway smooth muscle biology and for discovery of novel airway smooth muscle therapeutics for CF and other diseases of airway hyperreactivity.
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Affiliation(s)
- Daniel P Cook
- Department of Internal Medicine.,Department of Molecular Physiology and Biophysics, and
| | - Ryan J Adam
- Department of Biomedical Engineering, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Keyan Zarei
- Department of Biomedical Engineering, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Benjamin Deonovic
- Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | | | | | - David K Meyerholz
- Department of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Kin Fai Au
- Department of Internal Medicine.,Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | - David A Stoltz
- Department of Internal Medicine.,Department of Molecular Physiology and Biophysics, and.,Department of Biomedical Engineering, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.,Pappajohn Biomedical Institute, University of Iowa, Iowa City, Iowa, USA
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Bicarbonate in cystic fibrosis. J Cyst Fibros 2017; 16:653-662. [PMID: 28732801 DOI: 10.1016/j.jcf.2017.06.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/22/2017] [Accepted: 06/22/2017] [Indexed: 11/20/2022]
Abstract
BACKGROUND Cystic fibrosis (CF, mucoviscidosis) is caused by mutations in the gene encoding CF transmembrane conductance regulator (CFTR), which is a chloride and bicarbonate channel necessary for fluid secretion and extracellular alkalization. For a long time, research concentrated on abnormal Cl- and Na+ transport, but neglected bicarbonate as a crucial factor in CF. METHODS The present short review reports early findings as well as recent insights into the role of CFTR for bicarbonate transport and its defects in CF. RESULTS The available data indicate impaired bicarbonate transport not only in pancreas, intestine, airways, and reproductive organs, but also in salivary glands, sweat duct and renal tubular epithelial cells. Defective bicarbonate transport is closely related to the impaired mucus properties and mucus blocking in secretory organs of CF patients, causing the life threatening lung disease. CONCLUSIONS Apart from the devastating lung disease, abrogated bicarbonate transport also leads to many other organ dysfunctions, which are outlined in the present review.
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Ng HP, Valentine VG, Wang G. CFTR targeting during activation of human neutrophils. J Leukoc Biol 2016; 100:1413-1424. [DOI: 10.1189/jlb.4a0316-130rr] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Abstract
Abstract
Cystic fibrosis transmembrane conductance regulator (CFTR), a cAMP-activated chloride channel, plays critical roles in phagocytic host defense. However, how activated neutrophils regulate CFTR channel distribution subcellularly is not well defined. To investigate, we tested multiple Abs against different CFTR domains, to examine CFTR expression in human peripheral blood neutrophils by flow cytometry. The data confirmed that resting neutrophils had pronounced CFTR expression. Activation of neutrophils with soluble or particulate agonists did not significantly increase CFTR expression level, but induced CFTR redistribution to cell surface. Such CFTR mobilization correlated with cell-surface recruitment of formyl-peptide receptor during secretory vesicle exocytosis. Intriguingly, neutrophils from patients with ΔF508-CF, despite expression of the mutant CFTR, showed little cell-surface mobilization upon stimulation. Although normal neutrophils effectively targeted CFTR to their phagosomes, ΔF508-CF neutrophils had impairment in that process, resulting in deficient hypochlorous acid production. Taken together, activated neutrophils regulate CFTR distribution by targeting this chloride channel to the subcellular sites of activation, and ΔF508-CF neutrophils fail to achieve such targeting, thus undermining their host defense function.
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Affiliation(s)
- Hang Pong Ng
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
| | - Vincent G Valentine
- Department of Medicine, University of Texas Medical Branch , Galveston, Texas
| | - Guoshun Wang
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
- Department of Genetics, Louisiana State University Health Sciences Center , New Orleans, Louisiana
- Department of Medicine, Louisiana State University Health Sciences Center , New Orleans, Louisiana
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Heidari S, Hojati Z, Motovali-Bashi M. Screening of Two Neighboring CFTR Mutations in Iranian Infertile Men with Non-Obstructive Azoospermia. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2016; 10:390-394. [PMID: 28042420 PMCID: PMC5134755 DOI: 10.22074/ijfs.2016.4593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 07/24/2016] [Indexed: 11/06/2022]
Abstract
The genetic association between cystic fibrosis transmembrane conductance regulator
(CFTR) gene mutations and male infertility due to congenital bilateral absence of vas
deferens (CBAVD) is well established. Mutant CFTR, however may also be involved in
the etiology of male infertility in non-CBAVD cases. The present study was conducted
to estimate the frequency of ∆I507 and ∆F508 CFTR gene mutations in Iranian infertile
males. We undertook the first study of association between these CFTR mutations and
non-obstructive azoospermia in Iran.
In this case-control study, 100 fertile healthy fathers and 100 non-obstructive azoospermia’s
men were recruited from Isfahan Infertility Center (IIC) and Sari Saint Mary’s Infertility Center,
between 2008 and 2009. Screening of F508del and I507del mutations was
carried out by the multiplex-ARMS-PCR. Significance of differences in mutation frequencies
between the patient and control groups was assessed by Fisher’s exact test. The
ΔF508 was detected in three patients. However there are no significant association was
found between the presence of this mutated allele and infertility [OR=9.2 (allele-based)
and 7.2 (individual-based), P=0.179]. None of the samples carried the ΔI507 mutation.
Altogether, we show that neither ΔI507 nor ΔF508 is involved in this population of Iranian infertile males with non-obstructive azoospermia.
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Affiliation(s)
- Somayeh Heidari
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
| | - Zohreh Hojati
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
| | - Majid Motovali-Bashi
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
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Yefimova MG, Béré E, Cantereau-Becq A, Harnois T, Meunier AC, Messaddeq N, Becq F, Trottier Y, Bourmeyster N. Myelinosomes act as natural secretory organelles in Sertoli cells to prevent accumulation of aggregate-prone mutant Huntingtin and CFTR. Hum Mol Genet 2016; 25:4170-4185. [DOI: 10.1093/hmg/ddw251] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/16/2016] [Accepted: 07/18/2016] [Indexed: 01/06/2023] Open
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Yan C, Lang Q, Huijuan L, Jiang X, Ming Y, Huaqin S, Wenming X. CFTR Deletion in Mouse Testis Induces VDAC1 Mediated Inflammatory Pathway Critical for Spermatogenesis. PLoS One 2016; 11:e0158994. [PMID: 27483469 PMCID: PMC4970767 DOI: 10.1371/journal.pone.0158994] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 06/24/2016] [Indexed: 11/22/2022] Open
Abstract
Cystic fibrosis is the most common genetic disease among Caucasians and affects tissues including lung, pancreas and reproductive tracts. It has been shown that Endoplasmic Reticulum (ER) stress and heat shock response are two major deregulated functional modules related to CFTR dysfunction. To identify the impact of CFTR deletion during spermatogenesis, we examined the expression of spermiogenesis-related genes in the testis of CFTR mutant mice (CF mice). We confirmed expression changes of MSY2, a germ cell specific RNA binding protein, resulting from deletion of CFTR in testis. Furthermore, real time PCR and Western blot results showed that an inflammatory response was activated in CF mice testis, as reflected by the altered expression of cytokines. We demonstrate for the first time that expression of MSY2 is decreased in CF mice. Our results suggest that CFTR deletion in testis influences inflammatory responses and these features are likely to be due to the unique environment of the seminiferous tubule during the spermatogenesis process. The current study also suggests avenues to understand the pathophysiology of CFTR during spermatogenesis and provides targets for the possible treatment of CFTR-related infertility.
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Affiliation(s)
- Chen Yan
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related disease of Women and Children, Ministry of Education (Sichuan University), West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- SCU-CUHK Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qin Lang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Liao Huijuan
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related disease of Women and Children, Ministry of Education (Sichuan University), West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- SCU-CUHK Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xie Jiang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Third People’s Hospital of Chengdu, the Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu 610031, Sichuan, China
| | - Yang Ming
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related disease of Women and Children, Ministry of Education (Sichuan University), West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- SCU-CUHK Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Sun Huaqin
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related disease of Women and Children, Ministry of Education (Sichuan University), West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- SCU-CUHK Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xu Wenming
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- Key Laboratory of Birth Defects and Related disease of Women and Children, Ministry of Education (Sichuan University), West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- SCU-CUHK Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- * E-mail:
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Bhattacharyya S, Feferman L, Tobacman JK. Effect of CFTR modifiers on arylsulfatase B activity in cystic fibrosis and normal human bronchial epithelial cells. Pulm Pharmacol Ther 2016; 36:22-30. [DOI: 10.1016/j.pupt.2015.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Revised: 11/01/2015] [Accepted: 11/25/2015] [Indexed: 10/22/2022]
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Guo H, Li Y, Luo M, Lin S, Chen J, Ma Q, Gu Y, Jiang Z, Gui Y. Androgen receptor binding to an androgen-responsive element in the promoter of the Srsf4 gene inhibits its expression in mouse Sertoli cells. Mol Reprod Dev 2015; 82:976-85. [PMID: 26308373 DOI: 10.1002/mrd.22576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 08/22/2015] [Indexed: 02/05/2023]
Abstract
The serine/arginine-rich splicing actor 4 (SRSF4) is essential for pre-mRNA splicing and can influence alternative-splice-site choice. Little is known about the specific function of this gene in the reproductive system, although a recent study identified a SRSF4 polymorphism significantly associated with a decreased risk of non-obstructive azoospermia in Chinese men. We previously found that the expression of Srsf4 was up-regulated in the testes of Sertoli-cell-selective androgen receptor knockout (S-Ar(-/y)) mice compared to wild-type mice using digital gene expression analysis. In this study, we confirmed and extended the selective gene expression data: SRSF4 was mainly located in the nucleus of Sertoli cells, and Srsf4 expression in the Sertoli-cell-derived cell line TM4 is down-regulation by testosterone. Moreover, androgen receptor directly binds the androgen-responsive element of the Srsf4 promoter. Taken together, these results demonstrate that Srsf4 is a direct downstream target of the androgen receptor in mouse Sertoli cells.
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Affiliation(s)
- Huan Guo
- Guangzhou Medical University, Guangzhou, P.R. China
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
| | - Yuchi Li
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
- Shantou University Medical College, Shantou, P.R. China
| | - Manling Luo
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
- Shantou University Medical College, Shantou, P.R. China
| | - Shouren Lin
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
| | - Jianbo Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
- Anhui Medical University, Hefei, P.R. China
| | - Qian Ma
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
| | - Yanli Gu
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
| | - Zhimao Jiang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
| | - Yaoting Gui
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
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38
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Borth H, Weber N, Meyer D, Wartenberg A, Arlt E, Zierler S, Breit A, Wennemuth G, Gudermann T, Boekhoff I. The IP3 R Binding Protein Released With Inositol 1,4,5-Trisphosphate Is Expressed in Rodent Reproductive Tissue and Spermatozoa. J Cell Physiol 2015; 231:1114-29. [PMID: 26439876 DOI: 10.1002/jcp.25209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 09/30/2015] [Indexed: 11/08/2022]
Abstract
Besides its capacity to inhibit the 1,4,5-trisphosphate (IP3) receptor, the regulatory protein IRBIT (IP3 receptor binding protein released with IP3) is also able to control the activity of numerous ion channels and electrolyte transporters and thereby creates an optimal electrolyte composition of various biological fluids. Since a reliable execution of spermatogenesis and sperm maturation critically depends on the establishment of an adequate microenvironment, the expression of IRBIT in male reproductive tissue was examined using immunohistochemical approaches combined with biochemical fractionation methods. The present study documents that IRBIT is expressed in Leydig and Sertoli cells. In addition, pronounced IRBIT expression was detected in sperm precursors during early stages of spermatogenesis as well as in spermatozoa. Analyzing tissue sections of rodent epididymides, IRBIT was found to co-localize with the proton pumping V-ATPase and the cystic fibrosis transmembrane conductance regulator (CFTR) at the apical surface of narrow and clear cells. A similar co-localization of IRBIT with CFTR was also observed for Sertoli cells and developing germ cells. Remarkably, assaying caudal sperm in immunogold electron microscopy, IRBIT was found to localize to the acrosomal cap and the flagellum as well as to the sperm nucleus; moreover, a prominent oligomerization was observed for spermatozoa. The pronounced occurrence of IRBIT in the male reproductive system and mature spermatozoa indicates a potential role for IRBIT in establishing the essential luminal environment for a faithful execution of spermatogenesis and epididymal sperm maturation, and suggest a participation of IRBIT during maturation steps after ejaculation and/or the final fertilization process.
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Affiliation(s)
- Heike Borth
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
| | - Nele Weber
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
| | - Dorke Meyer
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
| | - Andrea Wartenberg
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
| | - Elisabeth Arlt
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
| | - Susanna Zierler
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
| | - Andreas Breit
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
| | - Gunther Wennemuth
- Department of Anatomy, University Clinic Essen, University of Duisburg-Essen, Germany
| | - Thomas Gudermann
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
| | - Ingrid Boekhoff
- Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universit, ä, t M, ü, nchen, München, Germany
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Eckhardt M, Wang-Eckhardt L. A commercial human protamine-2 antibody used in several studies to detect mouse protamine-2 recognizes mouse transition protein-2 but not protamine-2. Mol Hum Reprod 2015; 21:825-31. [PMID: 26268249 DOI: 10.1093/molehr/gav046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 08/10/2015] [Indexed: 01/17/2023] Open
Abstract
The exchange of histones for transition proteins (TNPs) and finally protamines is an essential process during spermatogenesis that enables the strong condensation of chromatin during sperm formation. Research on this process obviously depends on the availability of specific antibodies recognizing these nuclear proteins. A commercial antibody generated against human protamine-2 (PRM2) has been described to cross-react with mouse PRM2 and in fact has been used in several studies to detect mouse PRM2. Some inconsistent results obtained with this goat-derived antibody prompted us to re-examine its specificity. In immunofluorescence experiments with epididymal sperm, only a low percentage of sperm nuclei were stained by this antibody, whereas a mouse monoclonal anti- PRM2 antibody stained most sperm, as expected. Western blot analysis of basic nuclear proteins from spermatids and sperm separated by acid urea (AU) gel electrophoresis revealed that the goat anti- PRM2 antiserum binds to mouse TNP2 but not mouse PRM2. Epitope mapping using glutathione-S-transferase-fusion proteins with peptide sequences conserved in human PRM2 and mouse TNP2 identified the tetrapeptide arginyl-lysyl-arginyl-threonine as an epitope of the goat anti- PRM2 antiserum. Our findings underline the importance of using AU gel electrophoresis to confirm specificities of antibodies directed against basic nuclear proteins, which are not well separated, and may show abnormal migration behaviour, in SDS-polyacrylamide gel electrophoresis.
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Affiliation(s)
- Matthias Eckhardt
- Institute of Biochemistry and Molecular Biology, University of Bonn, Nussallee 11, Bonn 53115, Germany
| | - Lihua Wang-Eckhardt
- Institute of Biochemistry and Molecular Biology, University of Bonn, Nussallee 11, Bonn 53115, Germany
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40
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Ni B, Lin Y, Sun L, Zhu M, Li Z, Wang H, Yu J, Guo X, Zuo X, Dong J, Xia Y, Wen Y, Wu H, Li H, Zhu Y, Ping P, Chen X, Dai J, Jiang Y, Xu P, Du Q, Yao B, Weng N, Lu H, Wang Z, Zhu X, Yang X, Xiong C, Ma H, Jin G, Xu J, Wang X, Zhou Z, Liu J, Zhang X, Conrad DF, Hu Z, Sha J. Low-frequency germline variants across 6p22.2-6p21.33 are associated with non-obstructive azoospermia in Han Chinese men. Hum Mol Genet 2015. [PMID: 26199320 DOI: 10.1093/hmg/ddv257] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Genome-wide association studies (GWAS) have identified several common loci contributing to non-obstructive azoospermia (NOA). However, a substantial fraction of NOA heritability remains undefined, especially those low-frequency [defined here as having a minor allele frequency (MAF) between 0.5 and 5%] and rare (MAF below 0.5%) variants. Here, we performed a 3-stage exome-wide association study in Han Chinese men to evaluate the role of low-frequency or rare germline variants in NOA development. The discovery stage included 962 NOA cases and 1348 healthy male controls genotyped by exome chips and was followed by a 2-stage replication with an additional 2168 cases and 5248 controls. We identified three low-frequency variants located at 6p22.2 (rs2298090 in HIST1H1E encoding p.Lys152Arg: OR = 0.30, P = 2.40 × 10(-16)) and 6p21.33 (rs200847762 in FKBPL encoding p.Pro137Leu: OR = 0.11, P = 3.77 × 10(-16); rs11754464 in MSH5: OR = 1.78, P = 3.71 × 10(-7)) associated with NOA risk after Bonferroni correction. In summary, we report an instance of newly identified signals for NOA risk in genes previously undetected through GWAS on 6p22.2-6p21.33 in a Chinese population and highlight the role of low-frequency variants with a large effect in the process of spermatogenesis.
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Affiliation(s)
- Bixian Ni
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Yuan Lin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Liangdan Sun
- Institute of Dermatology and Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, Anhui 230022, China, Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui 230022, China
| | - Meng Zhu
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Zheng Li
- Shanghai Human Sperm Bank, Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Hui Wang
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Jun Yu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Xianbo Zuo
- Institute of Dermatology and Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, Anhui 230022, China, Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui 230022, China
| | - Jing Dong
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Toxicology and Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yang Wen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Hao Wu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Honggang Li
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430032, China
| | - Yong Zhu
- Shanghai Human Sperm Bank, Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Ping Ping
- Shanghai Human Sperm Bank, Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Xiangfeng Chen
- Shanghai Human Sperm Bank, Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Juncheng Dai
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Yue Jiang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Peng Xu
- Jinghua Hospital, Shenyang Dongfang Medical Group, Shenyang 110004, China
| | - Qiang Du
- Department of Reproduction, Shengjing Hospital, China Medical University, Shenyang 110004, China
| | - Bing Yao
- Department of Andrology, Nanjing Jinling Hospital, Nanjing 210029, China
| | - Ning Weng
- Jinghua Hospital, Shenyang Dongfang Medical Group, Shenyang 110004, China
| | - Hui Lu
- Shanghai Human Sperm Bank, Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Zhuqing Wang
- Shanghai Human Sperm Bank, Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Xiaobin Zhu
- Shanghai Human Sperm Bank, Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Xiaoyu Yang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Center of Clinical Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Chenliang Xiong
- Family Planning Research Institute, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430032, China
| | - Hongxia Ma
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Guangfu Jin
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and
| | - Jianfeng Xu
- Department of Urology, Huashan Hospital, Shanghai 200052, China
| | - Xinru Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Toxicology and Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zuomin Zhou
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China
| | - Jiayin Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Center of Clinical Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Xuejun Zhang
- Institute of Dermatology and Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, Anhui 230022, China, Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, China, Hefei, Anhui 230022, China
| | - Donald F Conrad
- Department of Genetics, Washington University School of Medicine, St Louis, MO 63110, USA, Department of Pathology & Immunology, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Zhibin Hu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, School of Public Health and State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200052, China,
| | - Jiahao Sha
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China, Department of Histology and Embryology, Nanjing Medical University, Nanjing 210029, China,
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Absence bilatérale des canaux déférents : du diagnostic à l’assistance médicale à la procréation. Expérience de 3 centres. ACTA ACUST UNITED AC 2015; 43:367-74. [DOI: 10.1016/j.gyobfe.2015.03.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 03/11/2015] [Indexed: 01/15/2023]
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42
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Lucarelli M, Bruno SM, Pierandrei S, Ferraguti G, Stamato A, Narzi F, Amato A, Cimino G, Bertasi S, Quattrucci S, Strom R. A Genotypic-Oriented View of CFTR Genetics Highlights Specific Mutational Patterns Underlying Clinical Macrocategories of Cystic Fibrosis. Mol Med 2015; 21:257-75. [PMID: 25910067 DOI: 10.2119/molmed.2014.00229] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 04/20/2015] [Indexed: 01/05/2023] Open
Abstract
Cystic fibrosis (CF) is a monogenic disease caused by mutations of the cystic fibrosis transmembrane conductance regulator (CFTR) gene. The genotype-phenotype relationship in this disease is still unclear, and diagnostic, prognostic and therapeutic challenges persist. We enrolled 610 patients with different forms of CF and studied them from a clinical, biochemical, microbiological and genetic point of view. Overall, there were 125 different mutated alleles (11 with novel mutations and 10 with complex mutations) and 225 genotypes. A strong correlation between mutational patterns at the genotypic level and phenotypic macrocategories emerged. This specificity appears to largely depend on rare and individual mutations, as well as on the varying prevalence of common alleles in different clinical macrocategories. However, 19 genotypes appeared to underlie different clinical forms of the disease. The dissection of the pathway from the CFTR mutated genotype to the clinical phenotype allowed to identify at least two components of the variability usually found in the genotype-phenotype relationship. One component seems to depend on the genetic variation of CFTR, the other component on the cumulative effect of variations in other genes and cellular pathways independent from CFTR. The experimental dissection of the overall biological CFTR pathway appears to be a powerful approach for a better comprehension of the genotype-phenotype relationship. However, a change from an allele-oriented to a genotypic-oriented view of CFTR genetics is mandatory, as well as a better assessment of sources of variability within the CFTR pathway.
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Affiliation(s)
- Marco Lucarelli
- Department of Cellular Biotechnologies and Hematology, Sapienza University of Rome, Rome, Italy.,Pasteur Institute, Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.,Policlinico Umberto I Hospital, Rome, Italy
| | - Sabina Maria Bruno
- Department of Cellular Biotechnologies and Hematology, Sapienza University of Rome, Rome, Italy
| | - Silvia Pierandrei
- Department of Cellular Biotechnologies and Hematology, Sapienza University of Rome, Rome, Italy.,Pasteur Institute, Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy
| | - Giampiero Ferraguti
- Department of Cellular Biotechnologies and Hematology, Sapienza University of Rome, Rome, Italy
| | - Antonella Stamato
- Policlinico Umberto I Hospital, Rome, Italy.,Department of Pediatrics, Sapienza University of Rome, Rome, Italy.,Cystic Fibrosis Reference Center of Lazio Region, Rome, Italy
| | - Fabiana Narzi
- Policlinico Umberto I Hospital, Rome, Italy.,Department of Pediatrics, Sapienza University of Rome, Rome, Italy.,Cystic Fibrosis Reference Center of Lazio Region, Rome, Italy
| | - Annalisa Amato
- Policlinico Umberto I Hospital, Rome, Italy.,Department of Pediatrics, Sapienza University of Rome, Rome, Italy.,Cystic Fibrosis Reference Center of Lazio Region, Rome, Italy
| | - Giuseppe Cimino
- Policlinico Umberto I Hospital, Rome, Italy.,Cystic Fibrosis Reference Center of Lazio Region, Rome, Italy
| | - Serenella Bertasi
- Policlinico Umberto I Hospital, Rome, Italy.,Cystic Fibrosis Reference Center of Lazio Region, Rome, Italy
| | - Serena Quattrucci
- Policlinico Umberto I Hospital, Rome, Italy.,Department of Pediatrics, Sapienza University of Rome, Rome, Italy.,Cystic Fibrosis Reference Center of Lazio Region, Rome, Italy
| | - Roberto Strom
- Department of Cellular Biotechnologies and Hematology, Sapienza University of Rome, Rome, Italy.,Policlinico Umberto I Hospital, Rome, Italy
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Noveski P, Madjunkova S, Mircevska M, Plaseski T, Filipovski V, Plaseska-Karanfilska D. SNaPshot assay for the detection of the most common CFTR mutations in infertile men. PLoS One 2014; 9:e112498. [PMID: 25386751 PMCID: PMC4227699 DOI: 10.1371/journal.pone.0112498] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 10/19/2014] [Indexed: 12/20/2022] Open
Abstract
Congenital bilateral absence of vas deferens (CBAVD) is the most common CFTR-related disorder (CFTR-RD) that explains about 1-2% of the male infertility cases. Controversial data have been published regarding the involvement of CFTR mutations in infertile men with non-obstructive azoospermia and oligozoospermia. Here, we describe single base extension (SNaPshot) assay for detection of 11 common CFTR mutations: F508del, G542X, N1303K, 621+1G->T, G551D, R553X, R1162X, W1282X, R117H, 2184insA and 1717-1G->A and IVS8polyT variants. The assay was validated on 50 previously genotyped samples and was used to screen a total of 369 infertile men with different impairment of spermatogenesis and 136 fertile controls. Our results show that double heterozygosity of cystic fibrosis (CF) and CFTR-related disorder (CFTR-RD) mutations are found in a high percentage (22.7%) of infertile men with obstructive azoospermia, but not in other studied groups of infertile men. The SNaPshot assay described here is an inexpensive, fast and robust method for primary screening of the most common CFTR mutations both in patients with classical CF and CFTR-RD. It can contribute to better understanding of the role of CFTR mutations in impaired spermatogenesis, ultimately leading to improved management of infertile men.
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Affiliation(s)
- Predrag Noveski
- Macedonian Academy of Sciences and Arts, Research Center for Genetic Engineering and Biotechnology ‘Georgi D. Efremov’, Skopje, Republic of Macedonia
| | - Svetlana Madjunkova
- Macedonian Academy of Sciences and Arts, Research Center for Genetic Engineering and Biotechnology ‘Georgi D. Efremov’, Skopje, Republic of Macedonia
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Marija Mircevska
- Macedonian Academy of Sciences and Arts, Research Center for Genetic Engineering and Biotechnology ‘Georgi D. Efremov’, Skopje, Republic of Macedonia
| | - Toso Plaseski
- Faculty of Medicine, Clinic of Endocrinology and Metabolic Disorders, Skopje, Republic of Macedonia
| | - Vanja Filipovski
- Clinical Hospital ‘Acibadem Sistina’, Skopje, Republic of Macedonia
| | - Dijana Plaseska-Karanfilska
- Macedonian Academy of Sciences and Arts, Research Center for Genetic Engineering and Biotechnology ‘Georgi D. Efremov’, Skopje, Republic of Macedonia
- * E-mail:
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44
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VanWort TA, Lee JA, Karvir H, Whitehouse MC, Beim PY, Copperman AB. Female cystic fibrosis mutation carriers and assisted reproductive technology: does carrier status affect reproductive outcomes? Fertil Steril 2014; 102:1324-30. [DOI: 10.1016/j.fertnstert.2014.07.1234] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 07/08/2014] [Accepted: 07/14/2014] [Indexed: 12/31/2022]
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45
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Jesus TT, Bernardino RL, Martins AD, Sá R, Sousa M, Alves MG, Oliveira PF. Aquaporin-9 is expressed in rat Sertoli cells and interacts with the cystic fibrosis transmembrane conductance regulator. IUBMB Life 2014; 66:639-44. [PMID: 25270793 DOI: 10.1002/iub.1312] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 09/05/2014] [Indexed: 01/22/2023]
Abstract
Men with mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene are usually subfertile/infertile. Besides playing a role in Cl(-)/HCO3(-) transport, it has been proposed that CFTR interacts with water membrane transport systems, particularly aquaporins, to control seminiferous tubular secretion, which is regulated by the somatic Sertoli cells (SCs). As aquaporin-9 (AQP9) is highly expressed throughout the male reproductive tract, we hypothesized that it is also present in rat SCs and that it physically interacts with CFTR. To test this hypothesis, primary cultures of rat SCs were established, and expression of CFTR and AQP9 was assessed by RT-polymerase chain reactions (mRNA) and Western blot analysis (protein). A coimmunoprecipitation assay was used to evaluate the physical interaction between CFTR and AQP9. Our results show that CFTR and AQP9 are expressed in rat SCs. We were also able to detect a molecular interaction between CFTR and AQP9 in rat SCs. This is the first report describing the presence of AQP9, and its interaction with CFTR, in rat SCs. Moreover, our results provide evidence that CFTR is involved in water homeostasis of the seminiferous tubular secretion. These mechanisms may open new insights on therapeutic targets to counteract subfertility/infertility in men with cystic fibrosis and mutations in the CFTR gene.
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Affiliation(s)
- Tito T Jesus
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal; Department of Microscopy, Laboratory of Cell Biology, Multidisciplinary Unit for Biomedical Research, UMIB-FCT, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal
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Sharma H, Mavuduru RS, Singh SK, Prasad R. Increased frequency of CFTR gene mutations identified in Indian infertile men with non-CBAVD obstructive azoospermia and spermatogenic failure. Gene 2014; 548:43-7. [PMID: 25010724 DOI: 10.1016/j.gene.2014.07.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/18/2014] [Accepted: 07/05/2014] [Indexed: 11/16/2022]
Abstract
High incidence of mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene is associated with congenital bilateral absence of the vas deferens (CBAVD) and is considered as the genital form of cystic fibrosis (CF). The CFTR gene may also be involved in the etiology of male infertility in cases other than CBAVD. The present study was conducted to identify the spectrum and frequency of CFTR gene mutations in infertile Indian males with non-CBAVD obstructive azoospermia (n=60) and spermatogenic failure (n=150). Conspicuously higher frequency of heterozygote F508del mutation was detected in infertile males with non-CBAVD obstructive azoospermia (11.6%) and spermatogenic failure (7.3%). Homozygous IVS(8)-5T allele frequency was also significantly higher in both groups in comparison to those in normal healthy individuals. Two mutations in exon 25 viz., R1358I and K1351R were identified as novel mutations in patients with non-CBAVD obstructive azoospermia. Mutation R1358I was predicted as probably damaging CFTR mutation. This is the first report from the Indian population, emphasizing increased frequency of CFTR gene mutations in male infertility other than CBAVD. Thus, it is suggested that screening of CFTR gene mutations may be required in infertile Indian males with other forms of infertility apart from CBAVD and willing for assisted reproduction technology.
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Affiliation(s)
- Himanshu Sharma
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Ravimohan S Mavuduru
- Department of Urology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Shrawan Kumar Singh
- Department of Urology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Rajendra Prasad
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India.
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do Nascimento CC, Junior OA, D’Almeida V. Analysis of male reproductive parameters in a murine model of mucopolysaccharidosis type I (MPS I). INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2014; 7:3488-3497. [PMID: 25031781 PMCID: PMC4097293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 04/10/2014] [Indexed: 06/03/2023]
Abstract
Mucopolysaccharidosis (MPS) I is a lysosomal storage disorder (LSD) that is characterised by alpha-L-iduronidase (Idua) deficiency and continuous deposition of glycosaminoglycans (GAGs), which consequently interferes with cell signalling mechanisms and results in multisystemic and progressive symptoms. The animal model of MPS I (Idua-/-) has been widely studied to elucidate the consequences and progression of the disorder; however, studies specifically assessing the male reproductive tract are lacking. The aim of this study was to evaluate some of the reproductive characteristics of male MPS I mice in two phases of life. Reproductive organ biometry, sperm counts, sperm morphological evaluation, plasma testosterone measurements and histopathological, histomorphometrical and immunohistochemical analysis were performed in 3- and 6-month-old C57BL/6 Idua+/+ and Idua-/- mice. Seminal vesicle weights were decreased in both the 3- and 6-month-old Idua-/- mice. Decrease in sperm counts and the majority of the histopathological signs were observed in the 6-month-old Idua-/- mice. No differences were detected in the sperm morphological analysis. Immunohistochemistry revealed that seminiferous tubules from 3-month-old Idua-/- mice were more intensely stained with anti-caspase-3 than 3-month-old Idua+/+ mice, but no difference was found at 6 months. These results suggest that MPS I interferes with male reproductive parameters both in 3 and 6-month-old animals and histopathological signs are more pronounced in 6-month-old mice, indicating that the effects of the disorder may intensify with the disease progression.
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Affiliation(s)
| | - Odair Aguiar Junior
- Department of Biosciences, Universidade Federal de São PauloSantos - SP, Brazil
| | - Vânia D’Almeida
- Department of Psychobiology, Universidade Federal de São PauloSão Paulo - SP, Brazil
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Jesus TT, Bernardino RL, Martins AD, Sá R, Sousa M, Alves MG, Oliveira PF. Aquaporin-4 as a molecular partner of cystic fibrosis transmembrane conductance regulator in rat Sertoli cells. Biochem Biophys Res Commun 2014; 446:1017-21. [DOI: 10.1016/j.bbrc.2014.03.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 03/12/2014] [Indexed: 12/19/2022]
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Schmitz B, Nedele J, Guske K, Maase M, Lenders M, Schelleckes M, Kusche-Vihrog K, Brand SM, Brand E. Soluble Adenylyl Cyclase in Vascular Endothelium. Hypertension 2014; 63:753-61. [DOI: 10.1161/hypertensionaha.113.02061] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The Ca
2+
- and bicarbonate-activated soluble adenylyl cyclase (sAC) has been identified recently as an important mediator of aldosterone signaling in the kidney. Nuclear sAC has been reported to stimulate cAMP response element–binding protein 1 phosphorylation via protein kinase A, suggesting an alternative cAMP pathway in the nucleus. In this study, we analyzed the sAC as a potential modulator of endothelial stiffness in the vascular endothelium. We determined the contribution of sAC to cAMP response element–mediated transcriptional activation in vascular endothelial cells and kidney collecting duct cells. Inhibition of sAC by the specific inhibitor KH7 significantly reduced cAMP response element–mediated promoter activity and affected cAMP response element–binding protein 1 phosphorylation. Furthermore, KH7 and anti-sAC small interfering RNA significantly decreased mRNA and protein levels of epithelial sodium channel-α and Na
+
/K
+
-ATPase-α. Using atomic force microscopy, a nano-technique that measures stiffness and deformability of living cells, we detected significant endothelial cell softening after sAC inhibition. Our results suggest that the sAC is a regulator of gene expression involved in aldosterone signaling and an important regulator of endothelial stiffness. Additional studies are warranted to investigate the protective action of sAC inhibitors in humans for potential clinical use.
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Affiliation(s)
- Boris Schmitz
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
| | - Johanna Nedele
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
| | - Katrin Guske
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
| | - Martina Maase
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
| | - Malte Lenders
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
| | - Michael Schelleckes
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
| | - Kristina Kusche-Vihrog
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
| | - Stefan-Martin Brand
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
| | - Eva Brand
- From Internal Medicine D, Department of Nephrology, Hypertension, and Rheumatology (B.S., J.N., K.G., M.L., M.S., E.B.) and Institute of Sports Medicine, Molecular Genetics of Cardiovascular Disease (B.S., S.-M.B.), University Hospital Muenster, Muenster, Germany; and Institute of Physiology II, University of Muenster, Muenster, Germany (M.M., K.K.-V.)
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Genetic variants in Ser-Arg protein-coding genes are associated with the risk of nonobstructive azoospermia in Chinese men. Fertil Steril 2014; 101:1711-7.e1-2. [PMID: 24661730 DOI: 10.1016/j.fertnstert.2014.02.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 02/18/2014] [Accepted: 02/18/2014] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To evaluate the association between genetic variants in Ser-Arg (SR) protein-coding genes and the susceptibility of nonobstructive azoospermia (NOA) in Chinese men. DESIGN Case-control study. SETTING State Key Laboratory of Reproductive Medicine in Nanjing Medical University conducted the genotyping and examined the expression levels of genes. PATIENT(S) The study included 962 NOA patients and 1,931 control subjects. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Genotyping of 16 single-nucleotide polymorphisms (SNPs) of eight "canonic" SR protein-coding genes were performed with the use of the Illumina Infinium Beadchip platform. Odds ratios were calculated by logistic regression analysis in the additive model. Expression levels were measured by quantitative reverse-transcription polymerase chain reaction. RESULT(S) Rs17431717 near SFRS9 and rs12046213 near SFRS4 were significantly associated with a decreased risk of NOA, whereas rs10849753 near SFRS9 and rs6103330 in SFRS6 were associated with an increased risk of NOA. Of the two SNPs in SFRS9, only rs17431717 remained significant after conditioning on another. Combined analysis of three promising SNPs (rs17431717, rs12046213, and rs6103330) showed that compared with individuals with "0-2" risk alleles, those carrying "3," "4," and "≥ 5" risk alleles had 1.22-, 1.38-, and 1.90-fold increased risk of NOA, respectively. CONCLUSION(S) Polymorphisms in SR protein-coding genes may contribute to the risk of NOA in Chinese men. The findings of this study can help us to further understand the etiology of spermatogenic impairment, and they provide more evidence for the role of splicing activity in human spermatogenesis.
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