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Zhang Y, Liu G, Huang L, He X, Su Y, Nie X, Mao Z, Xing X. SUN5 interacts with nuclear membrane LaminB1 and cytoskeletal GTPase Septin12 mediating the sperm head-and-tail junction. Mol Hum Reprod 2024; 30:gaae022. [PMID: 38870534 DOI: 10.1093/molehr/gaae022] [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: 12/11/2023] [Revised: 05/21/2024] [Indexed: 06/15/2024] Open
Abstract
Acephalic spermatozoa syndrome (ASS) is a severe teratospermia with decaudated, decapitated, and malformed sperm, resulting in male infertility. Nuclear envelope protein SUN5 localizes to the junction between the sperm head and tail. Mutations in the SUN5 gene have been identified most frequently (33-47%) in ASS cases, and its molecular mechanism of action is yet to be explored. In the present study, we generated Sun5 knockout mice, which presented the phenotype of ASS. Nuclear membrane protein LaminB1 and cytoskeletal GTPases Septin12 and Septin2 were identified as potential partners for interacting with SUN5 by immunoprecipitation-mass spectrometry in mouse testis. Further studies demonstrated that SUN5 connected the nucleus by interacting with LaminB1 and connected the proximal centriole by interacting with Septin12. The binding between SUN5 and Septin12 promoted their aggregation together in the sperm neck. The disruption of the LaminB1/SUN5/Septin12 complex by Sun5 deficiency caused separation of the Septin12-proximal centriole from the nucleus, leading to the breakage of the head-to-tail junction. Collectively, these data provide new insights into the pathogenesis of ASS caused by SUN5 deficiency.
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Affiliation(s)
- Yunfei Zhang
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Gang Liu
- Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha, China
| | - Lihua Huang
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiyi He
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yuyan Su
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xinmin Nie
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zenghui Mao
- Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha, China
| | - Xiaowei Xing
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
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2
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Karanwal S, Pal A, Chera JS, Batra V, Kumaresan A, Datta TK, Kumar R. Identification of protein candidates in spermatozoa of water buffalo ( Bubalus bubalis) bulls helps in predicting their fertility status. Front Cell Dev Biol 2023; 11:1119220. [PMID: 36891514 PMCID: PMC9986327 DOI: 10.3389/fcell.2023.1119220] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 02/07/2023] [Indexed: 02/22/2023] Open
Abstract
The water buffalo (Bubalus bubalis) is an indispensable part of the Indian dairy sector and in several instances, the farmers incur economic losses due to failed pregnancy after artificial insemination (AI). One of the key factors for the failure of conception is the use of semen from the bulls of low fertilizing potential and hence, it becomes important to predict the fertility status before performing AI. In this study, the global proteomic profile of high fertile (HF) and low fertile (LF) buffalo bull spermatozoa was established using a high-throughput LC-MS/MS technique. A total of 1,385 proteins (≥1 high-quality PSM/s, ≥1 unique peptides, p < 0.05, FDR < 0.01) were identified out of which, 1,002 were common between both the HF and LF groups while 288 and 95 proteins were unique to HF and LF groups respectively. We observed 211 and 342 proteins were significantly high (log Fc ≥ 2) and low abundant (log Fc ≤ 0.5) in HF spermatozoa (p < 0.05). Gene ontology analysis revealed that the fertility associated high abundant proteins in HF were involved in spermatogenesis, sperm motility, acrosome integrity, zona pellucida binding and other associated sperm functions. Besides this, the low abundant proteins in HF were involved in glycolysis, fatty acid degradation and inflammation. Furthermore, fertility related differentially abundant proteins (DAPs) on sperm viz., AKAP3, Sp17, and DLD were validated through Western blotting and immunocytochemistry which was in coherence with the LC-MS/MS data. The DAPs identified in this study may be used as potential protein candidates for predicting fertility in buffaloes. Our findings provide an opportunity in mitigating the economic losses that farmers incur due to male infertility.
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Affiliation(s)
- Seema Karanwal
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Ankit Pal
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Jatinder Singh Chera
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Vipul Batra
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Arumugam Kumaresan
- Theriogenelogy Laboratory, SRS of National Dairy Research Institute, Bengaluru, India
| | - Tirtha K Datta
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Rakesh Kumar
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
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3
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Liu M, Li J, Jiang C, Zhou Y, Sun Y, Yang Y, Shen Y. A novel homozygous mutation in DNAJB13-a gene associated with the sperm axoneme-leads to teratozoospermia. J Assist Reprod Genet 2022; 39:757-764. [PMID: 35166991 PMCID: PMC8995218 DOI: 10.1007/s10815-022-02431-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 02/07/2022] [Indexed: 02/05/2023] Open
Abstract
PURPOSE To evaluate the unknown genetic causes of teratozoospermia, and determine the pathogenicity of candidate variants. METHODS A primary infertile patient and his family members were recruited in the West China Second University Hospital of Sichuan University. Whole-exome sequencing was performed to identify causative genes in a man with teratozoospermia. Immunofluorescence staining and western blotting were applied to assess the pathogenicity of the identified variant. Intracytoplasmic sperm injection (ICSI) was used to assist fertilization for the patient with teratozoospermia. RESULTS We performed whole-exome sequencing (WES) and detected a novel homozygous frameshift mutation of c.335_336del [p.E112Vfs*3] in DNAJB13 on a primary infertile male patient. Intriguingly, we identified abnormal sperm morphology in this patient, with recurrent respiratory infections and chronic cough. Furthermore, we confirmed that this mutation resulted in negative effects on DNAJB13 expression in the spermatozoa of the affected individual, causing ultrastructural defects in his sperm. Remarkably, our staining revealed that DNAJB13 was expressed in the cytoplasm of primary germ cells and in the flagella of spermatids during spermiogenesis in humans and mice. Finally, we are the first group to report a favorable prognosis using ICSI for a patient carrying this DNAJB13 mutation. CONCLUSION Our study revealed a novel homozygous frameshift mutation of c.335_336del [p.E112Vfs*3] in DNAJB13 involved in teratozoospermia phenotype. Our study greatly expands the spectrum of limited DNAJB13 mutations, and is expected to provide a better understanding of genetic counseling diagnoses and subsequent treatment of male infertility.
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Affiliation(s)
- Mohan Liu
- 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
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, 610041, China
| | - Jinhui Li
- Department of Neonatology, 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
| | - Chuan Jiang
- 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
| | - Yanning Zhou
- School of Life Sciences, Sichuan Agricultural University, Ya'an, 625014, China
| | - Yongkang Sun
- 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
| | - Yihong Yang
- Reproduction Medical Center of West China Second University Hospital, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu, 610041, China.
| | - Ying Shen
- 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.
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Wong J, Damdimopoulos A, Damdimopoulou P, Gasperoni JG, Tran SC, Grommen SVH, De Groef B, Dworkin S. Transcriptome analysis of the epididymis from Plag1 deficient mice suggests dysregulation of sperm maturation and extracellular matrix genes. Dev Dyn 2020; 249:1500-1513. [PMID: 32959928 DOI: 10.1002/dvdy.254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/13/2020] [Accepted: 09/08/2020] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The transcription factor pleomorphic adenoma gene 1 (PLAG1) is required for male fertility. Mice deficient in PLAG1 exhibit decreased sperm motility and abnormal epididymal tubule elongation and coiling, indicating impaired sperm maturation during epididymal transit. However, the downstream transcriptomic profile of the Plag1 knockout (KO; Plag1-/- ) murine epididymis is currently unknown. RESULTS In this study, the PLAG1-dependent epididymal transcriptome was characterised using RNA sequencing. Several genes important for the control of sperm maturation, motility, capacitation and the acrosome reaction were dysregulated in Plag1-/- mice. Surprisingly, several cell proliferation genes were upregulated, and Ki67 analysis indicated that cell proliferation is aberrantly upregulated in the cauda epididymis stroma of Plag1-/- mice. Gene ontology analysis showed an overall upregulation of genes encoding extracellular matrix components, and an overall downregulation of genes encoding metalloendopeptidases in the epididymides from Plag1-/- mice. CONCLUSION Together, these results suggest a defect in the epididymal extracellular matrix in Plag1-/- mice. These results imply that in addition to maintaining epididymal integrity directly, PLAG1 may also regulate several genes involved in the regulation of sperm maturation and capacitation. Moreover, PLAG1 may also be involved in regulating tissue homeostasis and ensuring proper structure and maintenance of the extracellular matrix in the epididymis.
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Affiliation(s)
- Joanne Wong
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
| | - Anastasios Damdimopoulos
- Bioinformatics and Expression Analysis core facility, Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Pauliina Damdimopoulou
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Jemma G Gasperoni
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
| | - Stephanie C Tran
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
| | - Sylvia V H Grommen
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
| | - Bert De Groef
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
| | - Sebastian Dworkin
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, Victoria, Australia
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5
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Lee L, Ostrowski LE. Motile cilia genetics and cell biology: big results from little mice. Cell Mol Life Sci 2020; 78:769-797. [PMID: 32915243 DOI: 10.1007/s00018-020-03633-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/11/2020] [Accepted: 09/03/2020] [Indexed: 12/13/2022]
Abstract
Our understanding of motile cilia and their role in disease has increased tremendously over the last two decades, with critical information and insight coming from the analysis of mouse models. Motile cilia form on specific epithelial cell types and typically beat in a coordinated, whip-like manner to facilitate the flow and clearance of fluids along the cell surface. Defects in formation and function of motile cilia result in primary ciliary dyskinesia (PCD), a genetically heterogeneous disorder with a well-characterized phenotype but no effective treatment. A number of model systems, ranging from unicellular eukaryotes to mammals, have provided information about the genetics, biochemistry, and structure of motile cilia. However, with remarkable resources available for genetic manipulation and developmental, pathological, and physiological analysis of phenotype, the mouse has risen to the forefront of understanding mammalian motile cilia and modeling PCD. This is evidenced by a large number of relevant mouse lines and an extensive body of genetic and phenotypic data. More recently, application of innovative cell biological techniques to these models has enabled substantial advancement in elucidating the molecular and cellular mechanisms underlying the biogenesis and function of mammalian motile cilia. In this article, we will review genetic and cell biological studies of motile cilia in mouse models and their contributions to our understanding of motile cilia and PCD pathogenesis.
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Affiliation(s)
- Lance Lee
- Pediatrics and Rare Diseases Group, Sanford Research, Sioux Falls, SD, USA. .,Department of Pediatrics, Sanford School of Medicine of the University of South Dakota, Sioux Falls, SD, USA.
| | - Lawrence E Ostrowski
- Marsico Lung Institute/Cystic Fibrosis Center and Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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6
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Li WN, Zhu L, Jia MM, Yin SL, Lu GX, Liu G. Missense mutation in DNAJB13 gene correlated with male fertility in asthenozoospermia. Andrology 2019; 8:299-306. [PMID: 31342671 DOI: 10.1111/andr.12685] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 06/28/2019] [Accepted: 06/28/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND The most common type of male infertility is asthenospermia. We cloned DnaJ heat shock protein family member B13 (Dnajb13/DNAJB13), a type II HSP40 family member that is highly expressed in the testis. DNAJB13 plays a crucial role in sperm flagellar function. OBJECTIVES The aim of this study was to investigate whether a correlation exists between DNAJB13 and low sperm motility in infertile men. MATERIALS AND METHODS In the present study, we performed a mutation screening of the DNAJB13 gene in 92 idiopathic asthenozoospermia patients and 200 men with normal fertility. Additionally, we used immunoelectron microscopy, co-immunoprecipitation, mass spectrometric detection, indirect immunofluorescence assay, transmission electron microscopy studies, isobaric tags for relative and absolute quantitation, and multiple reaction monitoring studies to analyze changes in DNAJB13 protein. RESULTS A novel c.106T>C mutation of DNAJB13 was present in nearly 10% (9/92) of idiopathic asthenozoospermia patients and was absent in 200 fertile men. A computer-assisted sperm analyzer and transmission electron microscopy analysis using samples from 9 patients with DNAJB13 mutations demonstrated that most spermatozoa were immotile due to sperm tail defects. Multiple reaction monitoring results indicated that DNAJB13 protein levels were reduced after gene mutation. We achieved a pregnancy rate of 100% in 8 patients with DNAJB13 mutations using ICSI. DISCUSSION AND CONCLUSION The DNAJB13 heterozygous variant may affect fertility. ICSI can help these patients with low fertility to father children.
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Affiliation(s)
- W N Li
- Hunan Guangxiu Hi-tech Life Technology Co., Ltd., Changsha, China.,Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - L Zhu
- The Xiangtan Central Hospital, Yuhu District, Xiangtan, China
| | - M M Jia
- Shanxi Provincial Maternal and Child Health Care Hospital, Yanta District, Xi'an, China
| | - S L Yin
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - G X Lu
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China.,The Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha, China
| | - G Liu
- The Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha, China
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7
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López-Galindo L, Juárez OE, Larios-Soriano E, Del Vecchio G, Ventura-López C, Lago-Lestón A, Galindo-Sánchez C. Transcriptomic Analysis Reveals Insights on Male Infertility in Octopus maya Under Chronic Thermal Stress. Front Physiol 2019; 9:1920. [PMID: 30697164 PMCID: PMC6341066 DOI: 10.3389/fphys.2018.01920] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 12/20/2018] [Indexed: 11/25/2022] Open
Abstract
Octopus maya endemic to the Yucatan Peninsula, Mexico, is an ectotherm organism particularly temperature-sensitive. Studies in O. maya females show that temperatures above 27°C reduce the number of eggs per spawn, fertilization rate and the viability of embryos. High temperatures also reduce the male reproductive performance and success. However, the molecular mechanisms are still unknown. The transcriptomic profiles of testes from thermally stressed (30°C) and not stressed (24°C) adult male octopuses were compared, before and after mating to understand the molecular bases involved in the low reproductive performance at high temperature. The testis paired-end cDNA libraries were sequenced using the Illumina MiSeq platform. Then, the transcriptome was assembled de novo using Trinity software. A total of 53,214,611 high-quality paired reads were used to reconstruct 85,249 transcripts and 77,661 unigenes with an N50 of 889 bp length. Later, 13,154 transcripts were annotated implementing Blastx searches in the UniProt database. Differential expression analysis revealed 1,881 transcripts with significant difference among treatments. Functional annotation and pathway mapping of differential expressed transcripts revealed significant enrichment for biological processes involved in spermatogenesis, gamete generation, germ cell development, spermatid development and differentiation, response to stress, inflammatory response and apoptosis. Remarkably, the transcripts encoding genes such as ZMYND15, KLHL10, TDRD1, TSSK2 and DNAJB13, which are linked to male infertility in other species, were differentially expressed among the treatments. The expression levels of these key genes, involved in sperm motility and spermatogenesis were validated by quantitative real-time PCR. The results suggest that the reduction in male fertility at high temperature can be related to alterations in spermatozoa development and motility.
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Affiliation(s)
- Laura López-Galindo
- Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Oscar E Juárez
- Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Ernesto Larios-Soriano
- Laboratorio de Fisiología Integrativa de Organismos Marinos, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Giulia Del Vecchio
- Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Claudia Ventura-López
- Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Asunción Lago-Lestón
- Departamento de Innovación Biomédica, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
| | - Clara Galindo-Sánchez
- Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
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8
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Oji A, Noda T, Fujihara Y, Miyata H, Kim YJ, Muto M, Nozawa K, Matsumura T, Isotani A, Ikawa M. CRISPR/Cas9 mediated genome editing in ES cells and its application for chimeric analysis in mice. Sci Rep 2016; 6:31666. [PMID: 27530713 PMCID: PMC4987700 DOI: 10.1038/srep31666] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 07/21/2016] [Indexed: 12/30/2022] Open
Abstract
Targeted gene disrupted mice can be efficiently generated by expressing a single guide RNA (sgRNA)/CAS9 complex in the zygote. However, the limited success of complicated genome editing, such as large deletions, point mutations, and knockins, remains to be improved. Further, the mosaicism in founder generations complicates the genotypic and phenotypic analyses in these animals. Here we show that large deletions with two sgRNAs as well as dsDNA-mediated point mutations are efficient in mouse embryonic stem cells (ESCs). The dsDNA-mediated gene knockins are also feasible in ESCs. Finally, we generated chimeric mice with biallelic mutant ESCs for a lethal gene, Dnajb13, and analyzed their phenotypes. Not only was the lethal phenotype of hydrocephalus suppressed, but we also found that Dnajb13 is required for sperm cilia formation. The combination of biallelic genome editing in ESCs and subsequent chimeric analysis provides a useful tool for rapid gene function analysis in the whole organism.
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Affiliation(s)
- Asami Oji
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 5650871 Japan
- Research Fellow of Japan Society for the Promotion of Science (JSPS), Tokyo 1020083, Japan
| | - Taichi Noda
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
- Research Fellow of Japan Society for the Promotion of Science (JSPS), Tokyo 1020083, Japan
| | - Yoshitaka Fujihara
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
| | - Haruhiko Miyata
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
| | - Yeon Joo Kim
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
| | - Masanaga Muto
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 5650871 Japan
- Research Fellow of Japan Society for the Promotion of Science (JSPS), Tokyo 1020083, Japan
| | - Kaori Nozawa
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
- Research Fellow of Japan Society for the Promotion of Science (JSPS), Tokyo 1020083, Japan
- Graduate School of Medicine, Osaka University, Suita, Osaka 5650871 Japan
| | - Takafumi Matsumura
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 5650871 Japan
| | - Ayako Isotani
- Immunology Frontier Research Center, Osaka University, Suita, Osaka 5650871 Japan
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 5650871 Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 5650871 Japan
- Graduate School of Medicine, Osaka University, Suita, Osaka 5650871 Japan
- Immunology Frontier Research Center, Osaka University, Suita, Osaka 5650871 Japan
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9
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Mutations in DNAJB13, Encoding an HSP40 Family Member, Cause Primary Ciliary Dyskinesia and Male Infertility. Am J Hum Genet 2016; 99:489-500. [PMID: 27486783 DOI: 10.1016/j.ajhg.2016.06.022] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 06/22/2016] [Indexed: 10/21/2022] Open
Abstract
Primary ciliary dyskinesia (PCD) is an autosomal-recessive disease due to functional or ultra-structural defects of motile cilia. Affected individuals display recurrent respiratory-tract infections; most males are infertile as a result of sperm flagellar dysfunction. The great majority of the PCD-associated genes identified so far encode either components of dynein arms (DAs), which are multiprotein-ATPase complexes essential for ciliary motility, or proteins involved in DA assembly. To identify the molecular basis of a PCD phenotype characterized by central complex (CC) defects but normal DA structure, a phenotype found in ∼15% of cases, we performed whole-exome sequencing in a male individual with PCD and unexplained CC defects. This analysis, combined with whole-genome SNP genotyping, identified a homozygous mutation in DNAJB13 (c.833T>G), a gene encoding a HSP40 co-chaperone whose ortholog in the flagellated alga Chlamydomonas localizes to the radial spokes. In vitro studies showed that this missense substitution (p.Met278Arg), which involves a highly conserved residue of several HSP40 family members, leads to protein instability and triggers proteasomal degradation, a result confirmed by the absence of endogenous DNAJB13 in cilia and sperm from this individual. Subsequent DNAJB13 analyses identified another homozygous mutation in a second family; the study of DNAJB13 transcripts obtained from airway cells showed that this mutation (c.68+1G>C) results in a splicing defect consistent with a loss-of-function mutation. Overall, this study, which establishes mutations in DNAJB13 as a cause of PCD, unveils the key role played by DNAJB13 in the proper formation and function of ciliary and flagellar axonemes in humans.
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10
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Ajit Tamadaddi C, Sahi C. J domain independent functions of J proteins. Cell Stress Chaperones 2016; 21:563-70. [PMID: 27145962 PMCID: PMC4908003 DOI: 10.1007/s12192-016-0697-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/04/2016] [Accepted: 04/25/2016] [Indexed: 01/19/2023] Open
Abstract
Heat shock proteins of 40 kDa (Hsp40s), also called J proteins, are obligate partners of Hsp70s. Via their highly conserved and functionally critical J domain, J proteins interact and modulate the activity of their Hsp70 partners. Mutations in the critical residues in the J domain often result in the null phenotype for the J protein in question. However, as more J proteins have been characterized, it is becoming increasingly clear that a significant number of J proteins do not "completely" rely on their J domains to carry out their cellular functions, as previously thought. In some cases, regions outside the highly conserved J domain have become more important making the J domain dispensable for some, if not for all functions of a J protein. This has profound effects on the evolution of such J proteins. Here we present selected examples of J proteins that perform J domain independent functions and discuss this in the context of evolution of J proteins with dispensable J domains and J-like proteins in eukaryotes.
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Affiliation(s)
- Chetana Ajit Tamadaddi
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Chandan Sahi
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, India.
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11
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Dirami T, Rode B, Wolf JP, Gacon G, Dulioust E, Touré A. Assessment of the frequency of sperm annulus defects in a large cohort of patients presenting asthenozoospermia. Basic Clin Androl 2015; 25:10. [PMID: 26576287 PMCID: PMC4645475 DOI: 10.1186/s12610-015-0026-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 10/22/2015] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The annulus is a ring-shaped structure located beneath the plasma membrane that connects the midpiece and the principal piece of mammalian sperm flagellum. It has been suggested that the annulus acts as a morphological organizer, guiding flagellum assembly during spermiogenesis, and as a diffusion barrier, confining proteins to distinct compartments of the flagellum in mature sperm. Previous studies on small cohorts of patients have attempted to correlate annulus defects with the occurrence of human asthenozoospermia. An absence of the annulus has been shown to be frequently associated with asthenozoospermia. FINDINGS We tried to obtain a more precise estimate of the frequency of annulus defects, by screening a large cohort of 254 men presenting asthenozoospermia (mean progressive motility of 24 %) by the immunodetection of SLC26A8, a transmembrane protein that has been shown to be specifically localized to the annulus. By contrast to previous reports, our results indicate that annulus defects are associated with asthenozoospermia in only 1.2 % of cases. CONCLUSIONS We conclude that defects or an absence of the annulus are not frequently associated with asthenozoospermia. The use of annulus defects as a diagnostic endpoint in patients is therefore not appropriate.
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Affiliation(s)
- Thassadite Dirami
- INSERM U1016, Institut Cochin, Paris, 75014 France ; CNRS UMR8104, Paris, 75014 France ; Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, 75014 France
| | - Baptiste Rode
- INSERM U1016, Institut Cochin, Paris, 75014 France ; CNRS UMR8104, Paris, 75014 France ; Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, 75014 France
| | - Jean-Philippe Wolf
- INSERM U1016, Institut Cochin, Paris, 75014 France ; CNRS UMR8104, Paris, 75014 France ; Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, 75014 France ; Assistance Publique-Hôpitaux de Paris, GH Cochin Broca Hôtel Dieu, Laboratoire d'Histologie Embryologie - Biologie de la Reproduction, Paris, 75014 France
| | - Gérard Gacon
- INSERM U1016, Institut Cochin, Paris, 75014 France ; CNRS UMR8104, Paris, 75014 France ; Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, 75014 France
| | - Emmanuel Dulioust
- Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, 75014 France ; Assistance Publique-Hôpitaux de Paris, GH Cochin Broca Hôtel Dieu, Laboratoire d'Histologie Embryologie - Biologie de la Reproduction, Paris, 75014 France
| | - Aminata Touré
- INSERM U1016, Institut Cochin, Paris, 75014 France ; CNRS UMR8104, Paris, 75014 France ; Sorbonne Paris Cité, Faculté de Médecine, Université Paris Descartes, Paris, 75014 France ; Department of Genetics, Development and Reproduction, Institut Cochin, INSERM U1016, CNRS UMR8104, Université Paris Descartes, 24 rue du faubourg Saint Jacques, Paris, 75014 France
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Li W, Liu G. DNAJB13, a type II HSP40 family member, localizes to the spermatids and spermatozoa during mouse spermatogenesis. BMC DEVELOPMENTAL BIOLOGY 2014; 14:38. [PMID: 25233908 PMCID: PMC4236558 DOI: 10.1186/s12861-014-0038-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 09/10/2014] [Indexed: 01/25/2023]
Abstract
BACKGROUND Hundreds of HSP40s derived from various species have been identified, of which several proteins are involved in spermatogenesis. DNAJB13 is a type II HSP40/DnaJ protein. In a previous study, we cloned mouse Dnajb13, which is up-regulated in cryptorchidism. To date, however, little is known about the localization and functions of DNAJB13 during spermatogenesis. This study intends to identify the expression pattern of DNAJB13 during mammalian spermatogenesis. RESULTS RT-PCR and western blot revealed that the Dnajb13 gene and DNAJB13 protein were expressed not only in the testis but also in several other ciliated cell-containing tissues like the trachea, lung and oviduct. Quantitative PCR showed that the expression of Dnajb13 mRNA in testis was detectable as early as postnatal week 1, and sharply increased from postnatal week 3. Western blotting and immunohistochemistry determined that the DNAJB13 protein, which was located in the cytoplasm of spermatids and the sperm flagellum, was detectable from postnatal week 4. CONCLUSIONS Based on the spatiotemporal expression observed in the cytoplasm of spermatids and sperm flagella, we suggest that DNAJB13 participates in spermiogenesis and the motility of mature spermatozoa.
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Affiliation(s)
| | - Gang Liu
- Institute of Reproduction and Stem Cell Engineering, Central South University, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha 410078, China.
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13
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Colley SM, Wintle L, Searles R, Russell V, Firman RC, Smith S, DeBoer K, Merriner DJ, Genevieve B, Bentel JM, Stuckey BGA, Phillips MR, Simmons LW, de Kretser DM, O'Bryan MK, Leedman PJ. Loss of the nuclear receptor corepressor SLIRP compromises male fertility. PLoS One 2013; 8:e70700. [PMID: 23976951 PMCID: PMC3744554 DOI: 10.1371/journal.pone.0070700] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 06/20/2013] [Indexed: 11/24/2022] Open
Abstract
Nuclear receptors (NRs) and their coregulators play fundamental roles in initiating and directing gene expression influencing mammalian reproduction, development and metabolism. SRA stem Loop Interacting RNA-binding Protein (SLIRP) is a Steroid receptor RNA Activator (SRA) RNA-binding protein that is a potent repressor of NR activity. SLIRP is present in complexes associated with NR target genes in the nucleus; however, it is also abundant in mitochondria where it affects mitochondrial mRNA transcription and energy turnover. In further characterisation studies, we observed SLIRP protein in the testis where its localization pattern changes from mitochondrial in diploid cells to peri-acrosomal and the tail in mature sperm. To investigate the in vivo effects of SLIRP, we generated a SLIRP knockout (KO) mouse. This animal is viable, but sub-fertile. Specifically, when homozygous KO males are crossed with wild type (WT) females the resultant average litter size is reduced by approximately one third compared with those produced by WT males and females. Further, SLIRP KO mice produced significantly fewer progressively motile sperm than WT animals. Electron microscopy identified disruption of the mid-piece/annulus junction in homozygous KO sperm and altered mitochondrial morphology. In sum, our data implicates SLIRP in regulating male fertility, wherein its loss results in asthenozoospermia associated with compromised sperm structure and mitochondrial morphology.
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Affiliation(s)
- Shane M. Colley
- Laboratory for Cancer Medicine, The University of Western Australia Centre for Medical Research, Western Australian Institute for Medical Research, Perth, Australia
| | - Larissa Wintle
- Laboratory for Cancer Medicine, The University of Western Australia Centre for Medical Research, Western Australian Institute for Medical Research, Perth, Australia
| | | | - Victoria Russell
- Laboratory for Cancer Medicine, The University of Western Australia Centre for Medical Research, Western Australian Institute for Medical Research, Perth, Australia
| | - Renee C. Firman
- Centre for Evolutionary Biology, School of Animal Biology, The University of Western Australia, Crawley, Australia
| | - Stephanie Smith
- Male Infertility and Germ Cell Biology Laboratory, Department of Anatomy and Developmental Biology, Monash University, Clayton, Australia
| | - Kathleen DeBoer
- Male Infertility and Germ Cell Biology Laboratory, Department of Anatomy and Developmental Biology, Monash University, Clayton, Australia
| | - D. Jo Merriner
- Male Infertility and Germ Cell Biology Laboratory, Department of Anatomy and Developmental Biology, Monash University, Clayton, Australia
| | - Ben Genevieve
- Keogh Institute for Medical Research, Sir Charles Gairdner Hospital, Nedlands, Australia
| | - Jacqueline M. Bentel
- Anatomical Pathology, PathWest Laboratory Medicine, Royal Perth Hospital, Perth, Australia
- School of Pathology and Laboratory Medicine, University of Western Australia, Crawley, Australia
| | - Bronwyn G. A. Stuckey
- Keogh Institute for Medical Research, Sir Charles Gairdner Hospital, Nedlands, Australia
- School of Medicine and Pharmacology, University of Western Australia, Crawley, Australia
| | - Michael R. Phillips
- Laboratory for Cancer Medicine, The University of Western Australia Centre for Medical Research, Western Australian Institute for Medical Research, Perth, Australia
- School of Medicine and Pharmacology, University of Western Australia, Crawley, Australia
| | - Leigh W. Simmons
- Centre for Evolutionary Biology, School of Animal Biology, The University of Western Australia, Crawley, Australia
| | - David M. de Kretser
- Male Infertility and Germ Cell Biology Laboratory, Department of Anatomy and Developmental Biology, Monash University, Clayton, Australia
| | - Moira K. O'Bryan
- Male Infertility and Germ Cell Biology Laboratory, Department of Anatomy and Developmental Biology, Monash University, Clayton, Australia
| | - Peter J. Leedman
- Laboratory for Cancer Medicine, The University of Western Australia Centre for Medical Research, Western Australian Institute for Medical Research, Perth, Australia
- School of Medicine and Pharmacology, University of Western Australia, Crawley, Australia
- * E-mail:
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O'Toole ET, Giddings TH, Porter ME, Ostrowski LE. Computer-assisted image analysis of human cilia and Chlamydomonas flagella reveals both similarities and differences in axoneme structure. Cytoskeleton (Hoboken) 2012; 69:577-90. [PMID: 22573610 DOI: 10.1002/cm.21035] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 04/20/2012] [Accepted: 04/23/2012] [Indexed: 01/11/2023]
Abstract
In the past decade, investigations from several different fields have revealed the critical role of cilia in human health and disease. Because of the highly conserved nature of the basic axonemal structure, many different model systems have proven useful for the study of ciliopathies, especially the unicellular, biflagellate green alga Chlamydomonas reinhardtii. Although the basic axonemal structure of cilia and flagella is highly conserved, these organelles often perform specialized functions unique to the cell or tissue in which they are found. These differences in function are likely reflected in differences in structural organization. In this work, we directly compare the structure of isolated axonemes from human cilia and Chlamydomonas flagella to identify similarities and differences that potentially play key roles in determining their functionality. Using transmission electron microscopy and 2D image averaging techniques, our analysis has confirmed the overall structural similarity between these two species, but also revealed clear differences in the structure of the outer dynein arms, the central pair projections, and the radial spokes. We also show how the application of 2D image averaging can clarify the underlying structural defects associated with primary ciliary dyskinesia (PCD). Overall, our results document the remarkable similarity between these two structures separated evolutionarily by over a billion years, while highlighting several significant differences, and demonstrate the potential of 2D image averaging to improve the diagnosis and understanding of PCD.
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Affiliation(s)
- Eileen T O'Toole
- Boulder Laboratory for 3D Electron Microscopy of Cells, Department of MCD Biology, University of Colorado, Boulder, Colorado, USA
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Eitel M, Guidi L, Hadrys H, Balsamo M, Schierwater B. New insights into placozoan sexual reproduction and development. PLoS One 2011; 6:e19639. [PMID: 21625556 PMCID: PMC3098260 DOI: 10.1371/journal.pone.0019639] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 04/13/2011] [Indexed: 11/18/2022] Open
Abstract
Unraveling animal life cycles and embryonic development is basic to understanding animal biology and often sheds light on phylogenetic relationships. A key group for understanding the evolution of the Metazoa is the early branching phylum Placozoa, which has attracted rapidly increasing attention. Despite over a hundred years of placozoan research the life cycle of this enigmatic phylum remains unknown. Placozoa are a unique model system for which the nuclear genome was published before the basic biology (i.e. life cycle and development) has been unraveled. Four organismal studies have reported the development of oocytes and one genetic study has nourished the hypothesis of sexual reproduction in natural populations at least in the past. Here we report new observations on sexual reproduction and embryonic development in the Placozoa and support the hypothesis of current sexual reproduction. The regular observation of oocytes and expressed sperm markers provide support that placozoans reproduce sexually in the field. Using whole genome and EST sequences and additional cDNA cloning we identified five conserved sperm markers, characteristic for different stages in spermatogenesis. We also report details on the embryonic development up to a 128-cell stage and new ultrastructural features occurring during early development. These results suggest that sperm and oocyte generation and maturation occur in different placozoans and that clonal lineages reproduce bisexually in addition to the standard mode of vegetative reproduction. The sum of observations is best congruent with the hypothesis of a simple life cycle with an alternation of reproductive modes between bisexual and vegetative reproduction.
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Affiliation(s)
- Michael Eitel
- Stiftung Tierärztliche Hochschule Hannover, ITZ, Ecology and Evolution, Hannover, Germany.
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