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Sha Y, Liu W, Tang S, Zhang X, Xiao Z, Xiao Y, Deng H, Zhou H, Wei X. TENT5D disruption causes oligoasthenoteratozoospermia and male infertility. Andrology 2023; 11:1121-1131. [PMID: 36746179 DOI: 10.1111/andr.13407] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/06/2023] [Accepted: 01/31/2023] [Indexed: 02/08/2023]
Abstract
BACKGROUND Oligoasthenoteratozoospermia (OAT) is one of the most complex aggregators of male gametic problems. However, the genetic etiology of OAT is still largely unknown. OBJECTIVES To reveal the new genetic factors responsible for male infertility owning to OAT and reveal the outcomes of the affected patients from intracytoplasmic sperm injection (ICSI). MATERIALS AND METHODS Two infertile men with typical OAT were recruited in 2018 and retrospected a cohort that included 47 patients with OAT from 2013 to 2021. Fifty healthy men with proven fertility served as control subjects. To identify the novel pathogenic variants, whole-exome sequencing and Sanger sequencing were used. In silico analysis revealed the affecting of the variants. Field emission scanning electron microscopy was employed to observe the morphological defects of the spermatozoa. Immunofluorescence was used to analyze the expression and localization of the related protein. CRISPR/Cas9 was used to generate the mouse model. ICSI was used as a treatment for the patients and to assess the effects of the pathogenic variant on fertilization and embryo development. RESULTS We identified a loss-of-function mutation NM_001170574.2:c.823G > T (p.Glu275*) in X-linked TENT5D from two patients with OAT. This variant is highly deleterious and has not been found in the human population. The count of patients' spermatozoa is dramatically decreased and displays multiple morphologic abnormalities with poor motility. Tent5d knockout mice are infertile and exhibit parallel defects. ICSI could rescue the infertility of the Tent5d knockout male mice. Moreover, the proband was treated with ICSI and achieved a successful pregnancy outcome for the first time. Subsequent mutation screening identified no TENT5D mutations among 47 additional patients with OAT and 50 control subjects. CONCLUSION Mutation in TENT5D results in OAT and male infertility, and this terrible situation could be rescued by ICSI.
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Affiliation(s)
- Yanwei Sha
- Department of Andrology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Wensheng Liu
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Guangzhou, Guangdong, China
| | - Songxi Tang
- Department of Andrology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Xiaoya Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, China
| | - Ziyi Xiao
- School of Medicine, Yunnan University, Kunming, Yunnan, China
| | - Yuwei Xiao
- School of Medicine, Yunnan University, Kunming, Yunnan, China
| | - Hongjing Deng
- School of Medicine, Yunnan University, Kunming, Yunnan, China
| | - Huiliang Zhou
- Department of Andrology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Xiaoli Wei
- School of Medicine, Yunnan University, Kunming, Yunnan, China
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Truong VB, Davis OS, Gracey J, Neal MS, Khokhar JY, Favetta LA. Sperm capacitation and transcripts levels are altered by in vitro THC exposure. BMC Mol Cell Biol 2023; 24:6. [PMID: 36823609 PMCID: PMC9951432 DOI: 10.1186/s12860-023-00468-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 02/22/2023] [Indexed: 02/25/2023] Open
Abstract
BACKGROUND Delta-9-tetrahydrocannabinol (THC) is the primary phytocannabinoid responsible for the psychoactive properties of cannabis and is known to interact with the endocannabinoid system, which is functionally present in the male reproductive system. Since cannabis consumption is the highest among reproductive aged males, the current study aimed to further investigate the effects of THC exposure to phenotypical, physiological, and molecular parameters in sperm. Bull sperm of known fertility were used as a translational model for human sperm and subjected to in vitro treatment with physiologically relevant experimental doses of THC. Sperm parameters, capacitation, apoptosis, and transcript levels were evaluated following treatment. RESULTS Motility, morphology, and viability of bovine sperm was unaltered from THC exposure. However, 0.32µM of THC caused an increased proportion of capacitating sperm (p < 0.05) compared to control and vehicle group sperm. Transcriptome analysis revealed that 39 genes were found to be differentially expressed by 0.032µM THC exposure, 196 genes were differentially expressed by 0.32µM THC exposure, and 33 genes were differentially expressed by 3.2µM THC. Secondary analysis reveals pathways involving development, nucleosomes, ribosomes and translation, and cellular metabolism to be significantly enriched. CONCLUSION Phytocannabinoid exposure to sperm may adversely affect sperm function by stimulating premature capacitation. These findings also show for the first time that spermatozoal transcripts may be altered by THC exposure. These results add to previous research demonstrating the molecular effects of cannabinoids on sperm and warrant further research into the effects of cannabis on male fertility.
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Affiliation(s)
- Vivien B. Truong
- grid.34429.380000 0004 1936 8198Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, 50 Stone Rd. East, N1G 2W1 Guelph, ON Canada
| | - Ola S. Davis
- grid.34429.380000 0004 1936 8198Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, 50 Stone Rd. East, N1G 2W1 Guelph, ON Canada
| | - Jade Gracey
- grid.34429.380000 0004 1936 8198Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, 50 Stone Rd. East, N1G 2W1 Guelph, ON Canada
| | | | - Jibran Y. Khokhar
- grid.39381.300000 0004 1936 8884Department of Anatomy and Cell Biology, Western University, London, ON Canada
| | - Laura A. Favetta
- grid.34429.380000 0004 1936 8198Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, 50 Stone Rd. East, N1G 2W1 Guelph, ON Canada
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Investigation of the mechanisms leading to human sperm DNA damage based on transcriptome analysis by RNA-seq techniques. Reprod Biomed Online 2023; 46:11-19. [PMID: 36272896 DOI: 10.1016/j.rbmo.2022.08.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 02/07/2023]
Abstract
RESEARCH QUESTION What are the molecular mechanisms leading to human sperm DNA damage? DESIGN Semen samples were collected and the sperm DNA fragmentation index (DFI) was assessed. Differentially expressed RNA in spermatozoa with a high (DFI ≥30%, experimental group) or normal (DFI <30%, control group) DFI were identified by RNA-sequencing (RNA-seq) technology, and Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis was performed. Three differentially expressed RNA related to sperm DNA damage and repair, namely PMS1, TP53BP1 and TLK2, were validated using real-time quantitative (RT-qPCR). RESULTS A total of 19,970 expressed RNA were detected in the two groups. Compared with the control group, the expression levels of 189 RNA in the experimental group were significantly increased and those of 163 genes decreased. Gene Ontology enrichment analysis showed that these RNA were mainly concentrated in the ATPase-dependent transmembrane transport complex, extracellular exosome, somatic cell DNA recombination, protein binding, cytoplasm and regulation of localization. KEGG pathway analysis showed that these RNA were mainly related to the PI3K-Akt signalling pathway, endocytosis, p53 signalling pathway and cGMP-PKG signalling pathway. The RT-qPCR results showed that the expression levels of PMS1, TP53BP1 and TLK2 in the experimental group were significantly lower than in the control group (P = 0.01, 0.015 and 0.004, respectively), which was identical to the results of RNA sequencing. CONCLUSIONS Differentially expressed RNA related to sperm DNA damage and repair may be identified by RNA-seq technology, which provides new insights into the understanding of sperm DNA damage and repair, and will help to discover new biomarkers related to sperm DNA damage.
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X chromosome-linked genes in the mature sperm influence semen quality and fertility of breeding bulls. Gene 2022; 839:146727. [PMID: 35835407 DOI: 10.1016/j.gene.2022.146727] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 03/21/2022] [Accepted: 07/08/2022] [Indexed: 11/21/2022]
Abstract
The role of sperm expressed X-linked genes on bull fertility has not been studied in detail. The objective of the present study was to assess the influence of X-linked genes on the sperm functional parameters and field fertility rate in the Holstein Friesian cattle (n = 12) and Murrah buffalo (n = 7) bulls. The enrichment analysis (cattle = 8; buffalo = 8) of the X-linked genes was carried out using retrospective RNA-seq data and mRNA expression levels of functionally relevant genes were validated using the RT-qPCR. The mRNA expression levels of these genes were functionally associated with sperm attributes and field fertility rate. The sperm transcriptome studies revealed that the total number of expressed genes and the transcript content of the X-linked genes in the mature sperm were very low in both species, and only 23.31% of these genes were commonly expressed between them. The transcript pool corresponding to the X-linked genes represents embryonic organ development (p = 0.03) and reproduction (p = 0.02) processes in cattle and buffalo sperm, respectively. The mRNA expression levels of X-linked genes, RPL10 and ZCCHC13 in cattle; AKAP4, TSPAN6, RPL10 and RPS4X in buffalo were significantly (p < 0.05) correlated with sperm kinematics. Importantly, the mRNA expression levels of the genes RPL10 (r = -0.68) and RPS4X (r = 0.81) had a significant correlation with the field fertility rate in cattle and buffalo, respectively. Multivariate regression models and receiver operating curve analysis suggest that the mRNA expression levels of X-linked genes may be useful in predicting bull fertility. The study indicates that sperm-expressed X-linked genes influence semen quality and field fertility rate in both cattle and buffalo.
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Zhang D, Dai J, Cao Y, Wang Z, Qiao Z, Qiao Z. Nicotine exposure of male mice protects offspring against carbon tetrachloride-induced acute liver injury. J Biochem Mol Toxicol 2022; 36:e23069. [PMID: 35411647 DOI: 10.1002/jbt.23069] [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: 05/14/2021] [Revised: 11/19/2021] [Accepted: 03/23/2022] [Indexed: 11/09/2022]
Abstract
Paternal nicotine exposure can cause a phenotypic change in offspring. To study whether paternal nicotine exposure influences acute liver injury and repair of the offspring, we established a paternal nicotine exposure model in mice and treated the offspring mice with carbon tetrachloride (CCl4 ) to induce acute liver injury. After the treatment of CCl4 , the levels of alanine aminotransferase and aspartate aminotransferase in offspring serum of paternal nicotine exposed mice are about 37.44%, and 30.21% lower than the control mice, respectively. Transcription profiling screen and bioinformatics analysis of differently expressed genes in F1 mice liver revealed that the Wnt pathway was altered. The results demonstrate that nicotine exposure in male mice could enhance the activation of the Wnt pathway in F1 mice liver. The Wnt pathway facilitates cell proliferation and tissue repair. In conclusion, our findings showed that nicotine exposure of male mice protects hepatic against CCl4 -induced acute injury in offspring by activating the Wnt pathway in the F1 liver.
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Affiliation(s)
- Dong Zhang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jingbo Dai
- Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University, Chicago, Illinois, USA
| | - Yong Cao
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Zhaoxia Wang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiguang Qiao
- Renji Hospital
- South Campus, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhongdong Qiao
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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Dhombres F, Bonnard J, Bailly K, Maurice P, Papageorghiou A, Jouannic JM. Contributions of artificial intelligence reported in Obstetrics and Gynecology journals: a systematic review. J Med Internet Res 2022; 24:e35465. [PMID: 35297766 PMCID: PMC9069308 DOI: 10.2196/35465] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/11/2022] [Accepted: 03/15/2022] [Indexed: 11/13/2022] Open
Abstract
Background The applications of artificial intelligence (AI) processes have grown significantly in all medical disciplines during the last decades. Two main types of AI have been applied in medicine: symbolic AI (eg, knowledge base and ontologies) and nonsymbolic AI (eg, machine learning and artificial neural networks). Consequently, AI has also been applied across most obstetrics and gynecology (OB/GYN) domains, including general obstetrics, gynecology surgery, fetal ultrasound, and assisted reproductive medicine, among others. Objective The aim of this study was to provide a systematic review to establish the actual contributions of AI reported in OB/GYN discipline journals. Methods The PubMed database was searched for citations indexed with “artificial intelligence” and at least one of the following medical subject heading (MeSH) terms between January 1, 2000, and April 30, 2020: “obstetrics”; “gynecology”; “reproductive techniques, assisted”; or “pregnancy.” All publications in OB/GYN core disciplines journals were considered. The selection of journals was based on disciplines defined in Web of Science. The publications were excluded if no AI process was used in the study. Review, editorial, and commentary articles were also excluded. The study analysis comprised (1) classification of publications into OB/GYN domains, (2) description of AI methods, (3) description of AI algorithms, (4) description of data sets, (5) description of AI contributions, and (6) description of the validation of the AI process. Results The PubMed search retrieved 579 citations and 66 publications met the selection criteria. All OB/GYN subdomains were covered: obstetrics (41%, 27/66), gynecology (3%, 2/66), assisted reproductive medicine (33%, 22/66), early pregnancy (2%, 1/66), and fetal medicine (21%, 14/66). Both machine learning methods (39/66) and knowledge base methods (25/66) were represented. Machine learning used imaging, numerical, and clinical data sets. Knowledge base methods used mostly omics data sets. The actual contributions of AI were method/algorithm development (53%, 35/66), hypothesis generation (42%, 28/66), or software development (3%, 2/66). Validation was performed on one data set (86%, 57/66) and no external validation was reported. We observed a general rising trend in publications related to AI in OB/GYN over the last two decades. Most of these publications (82%, 54/66) remain out of the scope of the usual OB/GYN journals. Conclusions In OB/GYN discipline journals, mostly preliminary work (eg, proof-of-concept algorithm or method) in AI applied to this discipline is reported and clinical validation remains an unmet prerequisite. Improvement driven by new AI research guidelines is expected. However, these guidelines are covering only a part of AI approaches (nonsymbolic) reported in this review; hence, updates need to be considered.
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Affiliation(s)
- Ferdinand Dhombres
- Sorbonne University, Armand Trousseau University hospital, Fetal Medicine department, APHP, Armand Trousseau University hospital, Fetal Medicine department, APHP26 AV du Dr Arnold Netter, Paris, FR.,INSERM, Laboratory in Medical Informatics and Knowledge Engineering in e-Health (LIMICS), Paris, FR
| | - Jules Bonnard
- Sorbonne University, Institute for Intelligent Systems and Robotics (ISIR), Paris, FR
| | - Kévin Bailly
- Sorbonne University, Institute for Intelligent Systems and Robotics (ISIR), Paris, FR
| | - Paul Maurice
- Sorbonne University, Armand Trousseau University hospital, Fetal Medicine department, APHP, Paris, FR
| | - Aris Papageorghiou
- Oxford Maternal & Perinatal Health Institute, Green Templeton College, Oxford, GB
| | - Jean-Marie Jouannic
- Sorbonne University, Armand Trousseau University hospital, Fetal Medicine department, APHP, Paris, FR.,INSERM, Laboratory in Medical Informatics and Knowledge Engineering in e-Health (LIMICS), Paris, FR
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Dahlen CR, Borowicz PP, Ward AK, Caton JS, Czernik M, Palazzese L, Loi P, Reynolds LP. Programming of Embryonic Development. Int J Mol Sci 2021; 22:11668. [PMID: 34769097 PMCID: PMC8583791 DOI: 10.3390/ijms222111668] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/22/2021] [Accepted: 09/24/2021] [Indexed: 01/01/2023] Open
Abstract
Assisted reproductive techniques (ART) and parental nutritional status have profound effects on embryonic/fetal and placental development, which are probably mediated via "programming" of gene expression, as reflected by changes in their epigenetic landscape. Such epigenetic changes may underlie programming of growth, development, and function of fetal organs later in pregnancy and the offspring postnatally, and potentially lead to long-term changes in organ structure and function in the offspring as adults. This latter concept has been termed developmental origins of health and disease (DOHaD), or simply developmental programming, which has emerged as a major health issue in animals and humans because it is associated with an increased risk of non-communicable diseases in the offspring, including metabolic, behavioral, and reproductive dysfunction. In this review, we will briefly introduce the concept of developmental programming and its relationship to epigenetics. We will then discuss evidence that ART and periconceptual maternal and paternal nutrition may lead to epigenetic alterations very early in pregnancy, and how each pregnancy experiences developmental programming based on signals received by and from the dam. Lastly, we will discuss current research on strategies designed to overcome or minimize the negative consequences or, conversely, to maximize the positive aspects of developmental programming.
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Affiliation(s)
- Carl R. Dahlen
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA; (C.R.D.); (P.P.B.); (A.K.W.); (J.S.C.)
| | - Pawel P. Borowicz
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA; (C.R.D.); (P.P.B.); (A.K.W.); (J.S.C.)
| | - Alison K. Ward
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA; (C.R.D.); (P.P.B.); (A.K.W.); (J.S.C.)
| | - Joel S. Caton
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA; (C.R.D.); (P.P.B.); (A.K.W.); (J.S.C.)
| | - Marta Czernik
- Faculty of Veterinary Medicine, University of Teramo, 64100 Teramo, Italy; (M.C.); (P.L.)
| | - Luca Palazzese
- Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, Warsaw, Jastrzębiec, 05-552 Magdalenka, Poland;
| | - Pasqualino Loi
- Faculty of Veterinary Medicine, University of Teramo, 64100 Teramo, Italy; (M.C.); (P.L.)
| | - Lawrence P. Reynolds
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND 58108, USA; (C.R.D.); (P.P.B.); (A.K.W.); (J.S.C.)
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Lombó M, Herráez P. The effects of endocrine disruptors on the male germline: an intergenerational health risk. Biol Rev Camb Philos Soc 2021; 96:1243-1262. [PMID: 33660399 DOI: 10.1111/brv.12701] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 12/22/2022]
Abstract
Environmental pollution is becoming one of the major concerns of society. Among the emerging contaminants, endocrine-disrupting chemicals (EDCs), a large group of toxicants, have been the subject of many scientific studies. Besides the capacity of these compounds to interfere with the endocrine system, they have also been reported to exert both genotoxic and epigenotoxic effects. Given that spermatogenesis is a coordinated process that requires the involvement of several steroid hormones and that entails deep changes in the chromatin, such as DNA compaction and epigenetic remodelling, it could be affected by male exposure to EDCs. A great deal of evidence highlights that these compounds have detrimental effects on male reproductive health, including alterations to sperm motility, sexual function, and gonad development. This review focuses on the consequences of paternal exposure to such chemicals for future generations, which still remain poorly known. Historically, spermatozoa have long been considered as mere vectors delivering the paternal haploid genome to the oocyte. Only recently have they been understood to harbour genetic and epigenetic information that plays a remarkable role during offspring early development and long-term health. This review examines the different modes of action by which the spermatozoa represent a key target for EDCs, and analyses the consequences of environmentally induced changes in sperm genetic and epigenetic information for subsequent generations.
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Affiliation(s)
- Marta Lombó
- Department of Animal Reproduction, INIA, Puerta de Hierro 18, Madrid, 28040, Spain
| | - Paz Herráez
- Department of Molecular Biology, Faculty of Biology, Universidad de León, Campus de Vegazana s/n, León, 24071, Spain
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Zhang D, Dai J, Zhang M, Xie Y, Cao Y, He G, Xu W, Wang L, Qiao Z, Qiao Z. Paternal nicotine exposure promotes hepatic fibrosis in offspring. Toxicol Lett 2021; 343:44-55. [PMID: 33640489 DOI: 10.1016/j.toxlet.2021.02.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 01/29/2021] [Accepted: 02/22/2021] [Indexed: 02/06/2023]
Abstract
Paternal nicotine exposure can alter phenotypes in future generations. The aim of this study is to explore whether paternal nicotine exposure affects the hepatic repair to chronic injury which leads to hepatic fibrosis in offspring. Our results demonstrate that nicotine down regulates mmu-miR-15b expression via the hyper-methylation on its CpG island shore region in the spermatozoa. This epigenetic modification imprinted in the liver of the offspring. The decreased mmu-miR-15b promotes the expression of Wnt4 and activates the Wnt pathway in the offspring mice liver. The activation of the Wnt pathway improves the activation and proliferation of hepatic stellate cells (HSCs) leading to liver fibrosis. Moreover, the Wnt pathway promotes the activation of the TGF-β pathway and the two pathways cooperate to promote the transcription of extracellular matrix (ECM) genes. In conclusion, this study found that nicotine promotes hepatic fibrosis in the offspring via the activation of Wnt pathway by imprinting the hyper-methylation of mmu-miR-15b.
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Affiliation(s)
- Dong Zhang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Jingbo Dai
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University, 225 E Chicago Ave, Chicago, IL, 60611, USA
| | - Meixing Zhang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yilin Xie
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yong Cao
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Guang He
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Wangjie Xu
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Lianyun Wang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhiguang Qiao
- Renji Hospital, South Campus, Shanghai Jiao Tong University School of Medicine, Shanghai, 201112, China
| | - Zhongdong Qiao
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
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Ing NH, Konganti K, Ghaffari N, Johnson CD, Forrest DW, Love CC, Varner DD. Identification and quantification of coding and long non-coding RNAs in stallion spermatozoa separated by density. Andrology 2020; 8:1409-1418. [PMID: 32243084 DOI: 10.1111/andr.12791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 03/04/2020] [Accepted: 03/23/2020] [Indexed: 01/28/2023]
Abstract
BACKGROUND It is not unusual for stallions to have fertility problems. For many, artificial insemination with more dense spermatozoa (isolated by density gradient centrifugation) results in greater pregnancy rates compared with the rates when using unfractionated spermatozoa. RNAs in spermatozoa delivered to the oocyte at conception are required for embryo development. Novel molecular assays of spermatozoa that reflect function are needed to predict the fertility of stallions. OBJECTIVES To describe and compare the RNA populations in more dense and less dense spermatozoa from stallions. MATERIALS AND METHODS Spermatozoa from five stallions were separated into more dense and less dense populations by density gradient centrifugation. Complementary DNA libraries were made from each of the ten total RNA samples after ribosomal RNA removal. Next-generation sequencing characterized the RNA populations in more and less dense spermatozoa. Quantitative reverse transcription-PCR was used to confirm differential expression of selected RNAs. RESULTS Stallion spermatozoa contain 11 215 RNAs, with the most prevalent RNA being a 1492 base long non-coding RNA. The levels of 159 RNAs were greater in more dense spermatozoa, while levels of seven other RNAs were greater in less dense spermatozoa. Quantitative reverse transcription-PCR confirmed the threefold greater levels of solute carrier family 26 member 8 (SLC26A8) mRNA in less dense spermatozoa, and sixfold and threefold greater expression levels of the SCP2 sterol binding domain containing 1 (SCP2D1) and spermatogenesis-associated protein 31D1 (SPATA31D1) mRNAs in more dense spermatozoa, respectively. DISCUSSION AND CONCLUSION We identified 11 215 RNAs in stallion spermatozoa and 166 with differential expression between more dense and less dense fractions. Many prevalent RNAs were also found in bull, boar, and human spermatozoa. Many differentially expressed RNAs are known to be testis- or spermatozoa-specific. Our results may lead to identification of an RNA population in spermatozoa that is optimal for establishing successful pregnancies.
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Affiliation(s)
- Nancy H Ing
- Department of Animal Science, Texas A&M University, College Station, TX, USA
| | - Kranti Konganti
- Texas A&M Institute for Genome Sciences and Society, Texas A&M University, College Station, TX, USA
| | - Noushin Ghaffari
- AgriLife Genomics and Bioinformatics, Texas A&M University, College Station, TX, USA.,Roy G. Perry College of Engineering, Prairie View A&M University, Prairie View, TX, USA
| | - Charles D Johnson
- AgriLife Genomics and Bioinformatics, Texas A&M University, College Station, TX, USA
| | - David W Forrest
- Department of Animal Science, Texas A&M University, College Station, TX, USA
| | - Charles C Love
- Large Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
| | - Dickson D Varner
- Large Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
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Zhang M, Zhang D, Dai J, Cao Y, Xu W, He G, Wang Z, Wang L, Li R, Qiao Z. Paternal nicotine exposure induces hyperactivity in next-generation via down-regulating the expression of DAT. Toxicology 2020; 431:152367. [DOI: 10.1016/j.tox.2020.152367] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/29/2019] [Accepted: 01/12/2020] [Indexed: 11/29/2022]
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12
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Paternal inheritance of diet induced metabolic traits correlates with germline regulation of diet induced coding gene expression. Genomics 2020; 112:567-573. [DOI: 10.1016/j.ygeno.2019.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/27/2019] [Accepted: 04/11/2019] [Indexed: 12/20/2022]
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13
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Gross N, Strillacci MG, Peñagaricano F, Khatib H. Characterization and functional roles of paternal RNAs in 2-4 cell bovine embryos. Sci Rep 2019; 9:20347. [PMID: 31889064 PMCID: PMC6937301 DOI: 10.1038/s41598-019-55868-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 12/03/2019] [Indexed: 12/26/2022] Open
Abstract
Embryos utilize oocyte-donated RNAs until they become capable of producing RNAs through embryonic genome activation (EGA). The sperm's influence over pre-EGA RNA content of embryos remains unknown. Recent studies have revealed that sperm donate non-genomic components upon fertilization. Thus, sperm may also contribute to RNA presence in pre-EGA embryos. The first objective of this study was to investigate whether male fertility status is associated with the RNAs present in the bovine embryo prior to EGA. A total of 65 RNAs were found to be differentially expressed between 2-4 cell bovine embryos derived from high and low fertility sires. Expression patterns were confirmed for protein phosphatase 1 regulatory subunit 36 (PPP1R36) and ataxin 2 like (ATXN2L) in three new biological replicates. The knockdown of ATXN2L led to a 22.9% increase in blastocyst development. The second objective of this study was to characterize the parental origin of RNAs present in pre-EGA embryos. Results revealed 472 sperm-derived RNAs, 2575 oocyte-derived RNAs, 2675 RNAs derived from both sperm and oocytes, and 663 embryo-exclusive RNAs. This study uncovers an association of male fertility with developmentally impactful RNAs in 2-4 cell embryos. This study also provides an initial characterization of paternally-contributed RNAs to pre-EGA embryos. Furthermore, a subset of 2-4 cell embryo-specific RNAs was identified.
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Affiliation(s)
- Nicole Gross
- University of Wisconsin, Department of Animal Sciences, Madison, WI, 53706, USA
| | | | | | - Hasan Khatib
- University of Wisconsin, Department of Animal Sciences, Madison, WI, 53706, USA.
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14
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Jones KT. Mammalian sperm contain two factors for calcium release and egg activation: Phospholipase C zeta and a cryptic activating factor. Mol Hum Reprod 2019; 24:465-468. [PMID: 30257016 DOI: 10.1093/molehr/gay038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 08/22/2018] [Indexed: 12/11/2022] Open
Affiliation(s)
- Keith T Jones
- Faculty of Sciences, University of Adelaide, 5005, South Australia, Australia, and School of Biological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, UK
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15
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Spermatozoal mRNAs expression implicated in embryonic development were influenced by dietary folate supplementation of breeder roosters by altering spermatozoal piRNA expression profiles. Theriogenology 2019; 138:102-110. [PMID: 31325740 DOI: 10.1016/j.theriogenology.2019.07.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 06/20/2019] [Accepted: 07/08/2019] [Indexed: 11/20/2022]
Abstract
Dietary folate intake, together with changes in its metabolism process, have effects on male reproduction, sperm epigenetic patterning and offspring outcome. Previous studies have proven that PIWI-interacting RNAs (piRNAs) play important roles in successful spermatogenesis and regulating genes expression of sperm and offspring embryo. Herein, we fed breeder roosters with five different levels (0, 0.25, 1.25, 2.50, and 5.00 mg/kg) of folate throughout life and found that paternal folate supplementation was beneficial to the growth and organ development of offspring broilers. Further spermatozoal mRNAs sequencing analyses implied that the dietary folate supplementation could regulate the spermatozoal mRNA abundance of genes related to the fetal development. Furthermore, global piRNAs analyses of breeder roosters' sperm revealed that differential concentration of dietary folate supplementation could change piRNAs profiles. Combined mRNAs sequencing and target gene prediction of differentially expressed gene-derived piRNAs, embryonic development and metabolism related pathways and biological processes, which were consisted to the regulatory roles of paternal folate supplementations, were significantly affected by the differentially expressed gene-derived piRNAs based on the GO and KEGG analyses. Overall, our results provided a novel insight into the role of piRNAs in response to folate intake, which will broaden the understanding about the relationship between folate and sperm epigenetic patterning of breeder roosters.
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16
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Ragusa M, Barbagallo D, Chioccarelli T, Manfrevola F, Cobellis G, Di Pietro C, Brex D, Battaglia R, Fasano S, Ferraro B, Sellitto C, Ambrosino C, Roberto L, Purrello M, Pierantoni R, Chianese R. CircNAPEPLD is expressed in human and murine spermatozoa and physically interacts with oocyte miRNAs. RNA Biol 2019; 16:1237-1248. [PMID: 31135264 DOI: 10.1080/15476286.2019.1624469] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) have a critical role in the control of gene expression. Their function in spermatozoa (SPZ) is unknown to date. Twenty-eight genes, involved in SPZ/testicular and epididymal physiology, were given in circBase database to find which of them may generate circular transcripts. We focused on circNAPEPLDiso1, one of the circular RNA isoforms of NAPEPLD transcript, because expressed in human and murine SPZ. In order to functionally characterize circNAPEPLDiso1 as potential microRNA (miRNA) sponge, we performed circNAPEPLDiso1-miR-CATCH and then profiled the expression of 754 miRNAs, by using TaqMan® Low Density Arrays. Among them, miRNAs 146a-5p, 203a-3p, 302c-3p, 766-3p and 1260a (some of them previously shown to be expressed in the oocyte), resulted enriched in circNAPEPLDiso1-miR-CATCHed cell lysate: the network of interactions generated from their validated targets was centred on a core of genes involved in the control of cell cycle. Moreover, computational analysis of circNAPEPLDiso1 sequence also showed its potential translation in a short form of NAPEPLD protein. Interestingly, the expression analysis in murine-unfertilized oocytes revealed low and high levels of circNAPEPLDiso1 and circNAPEPLDiso2, respectively. After fertilization, circNAPEPLDiso1 expression significantly increased, instead circNAPEPLDiso2 expression appeared constant. Based on these data, we suggest that SPZ-derived circNAPEPLDiso1 physically interacts with miRNAs primarily involved in the control of cell cycle; we hypothesize that it may represent a paternal cytoplasmic contribution to the zygote and function as a miRNA decoy inside the fertilized oocytes to regulate the first stages of embryo development. This role is proposed here for the first time.
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Affiliation(s)
- Marco Ragusa
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy.,b Oasi Research Institute - IRCCS , Troina , Italy
| | - Davide Barbagallo
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Teresa Chioccarelli
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Francesco Manfrevola
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Gilda Cobellis
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Cinzia Di Pietro
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Duilia Brex
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Rosalia Battaglia
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Silvia Fasano
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Bruno Ferraro
- d UOSD di Fisiopatologia della Riproduzione, Presidio Ospedaliero di Marcianise , Caserta , Italy
| | - Carolina Sellitto
- d UOSD di Fisiopatologia della Riproduzione, Presidio Ospedaliero di Marcianise , Caserta , Italy
| | - Concetta Ambrosino
- e Dipartimento di Scienze e Tecnologie, Università del Sannio , Benevento , Italy
| | - Luca Roberto
- f IRGS, Biogem , Ariano Irpino, Avellino , Italy
| | - Michele Purrello
- a Dipartimento di Scienze Biomediche e Biotecnologiche, Università di Catania , Catania , Italy
| | - Riccardo Pierantoni
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
| | - Rosanna Chianese
- c Dipartimento di Medicina Sperimentale, sez "F. Bottazzi", Università della Campania "Luigi Vanvitelli" , Napoli , Italy
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17
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Nicotine inhibits murine Leydig cell differentiation and maturation via regulating Hedgehog signal pathway. Biochem Biophys Res Commun 2019; 510:1-7. [DOI: 10.1016/j.bbrc.2018.11.107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 11/16/2018] [Indexed: 11/24/2022]
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18
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Zhang X, Zhang P, Song D, Xiong S, Zhang H, Fu J, Gao F, Chen H, Zeng X. Expression profiles and characteristics of human lncRNA in normal and asthenozoospermia sperm†. Biol Reprod 2018; 100:982-993. [DOI: 10.1093/biolre/ioy253] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/16/2018] [Accepted: 12/01/2018] [Indexed: 12/17/2022] Open
Affiliation(s)
- Xiaoning Zhang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology, Nanchang University, Nanchang, China
| | - Peng Zhang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Dandan Song
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Suping Xiong
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | | | - Jianbo Fu
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Fengxin Gao
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Houyang Chen
- Reproductive Medical Center, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Xuhui Zeng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology, Nanchang University, Nanchang, China
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19
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Fuentes R, Letelier J, Tajer B, Valdivia LE, Mullins MC. Fishing forward and reverse: Advances in zebrafish phenomics. Mech Dev 2018; 154:296-308. [PMID: 30130581 PMCID: PMC6289646 DOI: 10.1016/j.mod.2018.08.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 08/06/2018] [Accepted: 08/17/2018] [Indexed: 12/15/2022]
Abstract
Understanding how the genome instructs the phenotypic characteristics of an organism is one of the major scientific endeavors of our time. Advances in genetics have progressively deciphered the inheritance, identity and biological relevance of genetically encoded information, contributing to the rise of several, complementary omic disciplines. One of them is phenomics, an emergent area of biology dedicated to the systematic multi-scale analysis of phenotypic traits. This discipline provides valuable gene function information to the rapidly evolving field of genetics. Current molecular tools enable genome-wide analyses that link gene sequence to function in multi-cellular organisms, illuminating the genome-phenome relationship. Among vertebrates, zebrafish has emerged as an outstanding model organism for high-throughput phenotyping and modeling of human disorders. Advances in both systematic mutagenesis and phenotypic analyses of embryonic and post-embryonic stages in zebrafish have revealed the function of a valuable collection of genes and the general structure of several complex traits. In this review, we summarize multiple large-scale genetic efforts addressing parental, embryonic, and adult phenotyping in the zebrafish. The genetic and quantitative tools available in the zebrafish model, coupled with the broad spectrum of phenotypes that can be assayed, make it a powerful model for phenomics, well suited for the dissection of genotype-phenotype associations in development, physiology, health and disease.
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Affiliation(s)
- Ricardo Fuentes
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joaquín Letelier
- Centro Andaluz de Biología del Desarrollo (CSIC/UPO/JA), Seville, Spain; Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
| | - Benjamin Tajer
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Leonardo E Valdivia
- Center for Integrative Biology, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.
| | - Mary C Mullins
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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20
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Hezavehei M, Sharafi M, Kouchesfahani HM, Henkel R, Agarwal A, Esmaeili V, Shahverdi A. Sperm cryopreservation: A review on current molecular cryobiology and advanced approaches. Reprod Biomed Online 2018; 37:327-339. [PMID: 30143329 DOI: 10.1016/j.rbmo.2018.05.012] [Citation(s) in RCA: 195] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 05/19/2018] [Accepted: 05/22/2018] [Indexed: 11/19/2022]
Abstract
The cryopreservation of spermatozoa was introduced in the 1960s as a route to fertility preservation. Despite the extensive progress that has been made in this field, the biological and biochemical mechanisms involved in cryopreservation have not been thoroughly elucidated to date. Various factors during the freezing process, including sudden temperature changes, ice formation and osmotic stress, have been proposed as reasons for poor sperm quality post-thaw. Little is known regarding the new aspects of sperm cryobiology, such as epigenetic and proteomic modulation of sperm and trans-generational effects of sperm freezing. This article reviews recent reports on molecular and cellular modifications of spermatozoa during cryopreservation in order to collate the existing understanding in this field. The aim is to discuss current freezing techniques and novel strategies that have been developed for sperm protection against cryo-damage, as well as evaluating the probable effects of sperm freezing on offspring health.
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Affiliation(s)
- Maryam Hezavehei
- Department of EmbryologyReproductive Biomedicine Research CentreRoyan Institute for Reproductive BiomedicineACECRTehranIran; Department of Animal BiologyFaculty of Biological SciencesKharazmi UniversityTehranIran
| | - Mohsen Sharafi
- Department of Poultry ScienceFaculty of AgricultureTarbiat Modares UniversityTehranIran.
| | | | - Ralf Henkel
- American Centre for Reproductive MedicineCleveland ClinicClevelandUSA
| | - Ashok Agarwal
- Department of Medical BioscienceUniversity of the Western CapeBellvilleSouth Africa
| | - Vahid Esmaeili
- Department of EmbryologyReproductive Biomedicine Research CentreRoyan Institute for Reproductive BiomedicineACECRTehranIran
| | - Abdolhossein Shahverdi
- Department of EmbryologyReproductive Biomedicine Research CentreRoyan Institute for Reproductive BiomedicineACECRTehranIran.
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21
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Gòdia M, Mayer FQ, Nafissi J, Castelló A, Rodríguez-Gil JE, Sánchez A, Clop A. A technical assessment of the porcine ejaculated spermatozoa for a sperm-specific RNA-seq analysis. Syst Biol Reprod Med 2018; 64:291-303. [PMID: 29696996 DOI: 10.1080/19396368.2018.1464610] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The study of the boar sperm transcriptome by RNA-seq can provide relevant information on sperm quality and fertility and might contribute to animal breeding strategies. However, the analysis of the spermatozoa RNA is challenging as these cells harbor very low amounts of highly fragmented RNA, and the ejaculates also contain other cell types with larger amounts of non-fragmented RNA. Here, we describe a strategy for a successful boar sperm purification, RNA extraction and RNA-seq library preparation. Using these approaches our objectives were: (i) to evaluate the sperm recovery rate (SRR) after boar spermatozoa purification by density centrifugation using the non-porcine-specific commercial reagent BoviPureTM; (ii) to assess the correlation between SRR and sperm quality characteristics; (iii) to evaluate the relationship between sperm cell RNA load and sperm quality traits and (iv) to compare different library preparation kits for both total RNA-seq (SMARTer Universal Low Input RNA and TruSeq RNA Library Prep kit) and small RNA-seq (NEBNext Small RNA and TailorMix miRNA Sample Prep v2) for high-throughput sequencing. Our results show that pig SRR (~22%) is lower than in other mammalian species and that it is not significantly dependent of the sperm quality parameters analyzed in our study. Moreover, no relationship between the RNA yield per sperm cell and sperm phenotypes was found. We compared a RNA-seq library preparation kit optimized for low amounts of fragmented RNA with a standard kit designed for high amount and quality of input RNA and found that for sperm, a protocol designed to work on low-quality RNA is essential. We also compared two small RNA-seq kits and did not find substantial differences in their performance. We propose the methodological workflow described for the RNA-seq screening of the boar spermatozoa transcriptome. ABBREVIATIONS FPKM: fragments per kilobase of transcript per million mapped reads; KRT1: keratin 1; miRNA: micro-RNA; miscRNA: miscellaneous RNA; Mt rRNA: mitochondrial ribosomal RNA; Mt tRNA: mitochondrial transference RNA; OAZ3: ornithine decarboxylase antizyme 3; ORT: osmotic resistance test; piRNA: Piwi-interacting RNA; PRM1: protamine 1; PTPRC: protein tyrosine phosphatase receptor type C; rRNA: ribosomal RNA; snoRNA: small nucleolar RNA; snRNA: small nuclear RNA; SRR: sperm recovery rate; tRNA: transfer RNA.
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Affiliation(s)
- Marta Gòdia
- a Animal Genomics Group , Centre for Research in Agricultural Genomics-CSIC-IRTA-UAB-UB , Cerdanyola del Valles , Catalonia , Spain
| | - Fabiana Quoos Mayer
- a Animal Genomics Group , Centre for Research in Agricultural Genomics-CSIC-IRTA-UAB-UB , Cerdanyola del Valles , Catalonia , Spain.,b Agricultural Diagnostic and Research Departament , Instituto de Pesquisas Veterinárias Desidério Finamor, Secretariat of Agriculture, Livestock and Irrigation , Eldorado do Sul , Rio Grande do Sul , Brazil
| | - Julieta Nafissi
- a Animal Genomics Group , Centre for Research in Agricultural Genomics-CSIC-IRTA-UAB-UB , Cerdanyola del Valles , Catalonia , Spain.,c Department of Biotechnology and Food Technology , Technology Institute (INTEC), Argentine University of Enterprise (UADE) , Buenos Aires , Argentina
| | - Anna Castelló
- a Animal Genomics Group , Centre for Research in Agricultural Genomics-CSIC-IRTA-UAB-UB , Cerdanyola del Valles , Catalonia , Spain.,d Unit of Animal Science, Department of Animal Science and Nutrition , Autonomous University of Barcelona , Cerdanyola del Valles , Catalonia , Spain
| | - Joan Enric Rodríguez-Gil
- e Unit of Animal Reproduction, Department of Animal Medicine and Surgery , Autonomous University of Barcelona , Cerdanyola del Valles , Catalonia , Spain
| | - Armand Sánchez
- a Animal Genomics Group , Centre for Research in Agricultural Genomics-CSIC-IRTA-UAB-UB , Cerdanyola del Valles , Catalonia , Spain.,d Unit of Animal Science, Department of Animal Science and Nutrition , Autonomous University of Barcelona , Cerdanyola del Valles , Catalonia , Spain
| | - Alex Clop
- a Animal Genomics Group , Centre for Research in Agricultural Genomics-CSIC-IRTA-UAB-UB , Cerdanyola del Valles , Catalonia , Spain
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22
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Hu F, Xu K, Zhou Y, Wu C, Wang S, Xiao J, Wen M, Zhao R, Luo K, Tao M, Duan W, Liu S. Different expression patterns of sperm motility-related genes in testis of diploid and tetraploid cyprinid fish†. Biol Reprod 2018; 96:907-920. [PMID: 28340181 PMCID: PMC5441299 DOI: 10.1093/biolre/iox010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/01/2017] [Indexed: 11/25/2022] Open
Abstract
Sperm motility is an important standard to measure the fertility of male. In our previous study, we found that the diploid spermatozoa from allotetraploid hybrid (4nAT) had longer durations of rapid and slow progressive motility than haploid spermatozoa from common carp (COC). In this study, to explore sperm motility-related molecular mechanisms, we compared the testis tissues transcriptomes from 2-year-old male COC and 4nAT. The RNA-seq data revealed that 2985 genes were differentially expressed between COC and 4nAT, including 2216 upregulated and 769 downregulated genes in 4nAT. Some differentially expressed genes, such as tubulin genes, dynein, axonemal, heavy chain(dnah) genes, mitogen-activated protein kinase(mapk) genes, tektin 4, FOX transcription factors, proteasome genes, and ubiquitin carboxyl-terminal hydrolase(uchl) genes, are involved in the regulation of cell division, flagellar and ciliary motility, gene transcription, cytoskeleton, energy metabolism, and the ubiquitin–proteasome system, suggesting that these genes were related to sperm motility of the 4nAT. We confirmed the differential expression of 12 such genes in 4nAT by quantitative PCR. By western blotting, we also confirmed increased expression of Uchl3 in 4nAT testis. In addition, we identified 1915 and 2551 predicted long noncoding RNA (lncRNA) transcripts from testis tissue transcriptomes of COC and 4nAT, respectively. Of these, 1575 lncRNAs were specifically expressed in 4nAT and 939 were specifically expressed in COC. This study provides insights into the transcriptome profile of testis tissues from diploid and tetraploid, which are useful for research on regulatory mechanisms behind sperm motility in male polyploidy.
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Affiliation(s)
- Fangzhou Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Kang Xu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Yunfan Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Chang Wu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Shi Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Jun Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Min Wen
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Rurong Zhao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Kaikun Luo
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Min Tao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Wei Duan
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, P. R. of China.,College of Life Sciences, Hunan Normal University, Changsha, Hunan, P. R. of China
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23
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Ntostis P, Carter D, Iles D, Huntriss J, Tzetis M, Miller D. Potential sperm contributions to the murine zygote predicted by in silico analysis. Reproduction 2017; 154:777-788. [DOI: 10.1530/rep-17-0097] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 09/08/2017] [Accepted: 09/15/2017] [Indexed: 12/17/2022]
Abstract
Paternal contributions to the zygote are thought to extend beyond delivery of the genome and paternal RNAs have been linked to epigenetic transgenerational inheritance in different species. In addition, sperm–egg fusion activates several downstream processes that contribute to zygote formation, including PLC zeta-mediated egg activation and maternal RNA clearance. Since a third of the preimplantation developmental period in the mouse occurs prior to the first cleavage stage, there is ample time for paternal RNAs or their encoded proteins potentially to interact and participate in early zygotic activities. To investigate this possibility, a bespoke next-generation RNA sequencing pipeline was employed for the first time to characterise and compare transcripts obtained from isolated murine sperm, MII eggs and pre-cleavage stage zygotes. Gene network analysis was then employed to identify potential interactions between paternally and maternally derived factors during the murine egg-to-zygote transition involving RNA clearance, protein clearance and post-transcriptional regulation of gene expression. Ourin silicoapproach looked for factors in sperm, eggs and zygotes that could potentially interact co-operatively and synergistically during zygote formation. At least five sperm RNAs (Hdac11,Fbxo2,Map1lc3a,Pcbp4andZfp821) met these requirements for a paternal contribution, which with complementary maternal co-factors suggest a wider potential for extra-genomic paternal involvement in the developing zygote.
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24
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Valcarce DG, Vuelta E, Robles V, Herráez MP. Paternal exposure to environmental 17-alpha-ethinylestradiol concentrations modifies testicular transcription, affecting the sperm transcript content and the offspring performance in zebrafish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 193:18-29. [PMID: 29028550 DOI: 10.1016/j.aquatox.2017.09.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/13/2017] [Accepted: 09/26/2017] [Indexed: 06/07/2023]
Abstract
The synthetic estrogen 17-α-ethinylestradiol (EE2), a major constituent in contraceptive pills, is an endocrine disrupting chemical (EDC) present in the aquatic environment at concentrations of ng/L. Developmental exposure to these low concentrations in fish can induce several disorders. Zebrafish (Danio rerio) is a perfect organism for monitoring the effects of environmental contaminants. Our hypothesis is that changes promoted by EE2 in the germ line of male adults could be transmitted to the unexposed progeny. We exposed male zebrafish to 2.5, 5 and 10ng/L of EE2 during spermatogenesis and mated them with untreated females. Detailed progeny development was studied concentrating to survival, hatching and malformations. Due to the high incidence of lymphedemas within larvae, we performed qPCR analysis of genes involved in lymphatic development (vegfc and vegfr3) and endothelial cell migration guidance (cxcr4a and cxcl12b). Estrogen receptor (ER) transcript presence was also evaluated in sperm, testis and embryos. Progenies showed a range of disorders although at a low incidence: skeletal distortions, uninflated swimbladder, lymphedema formation, cartilage deformities and otolith tethering. Swimming evaluation revealed less active locomotion. All these processes are related to pathways involving ERs (esr1, esr2a and esr2b). mRNA analysis revealed that environmental EE2 causes the up-regulation of esr1 an esr2b in testis and the increase of esr2b transcripts in sperm pointing to a link between lymphedema in embryos and ER expression impairment. We demonstrate that the effects induced by environmental toxicants can be paternally inherited and point to the changes on the sperm transcriptome as the responsible mechanism.
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Affiliation(s)
- David G Valcarce
- Department of Molecular Biology, Universidad de León, 24071, León, Spain; INDEGSAL, Universidad de León, 24071, León, Spain
| | - Elena Vuelta
- Department of Molecular Biology, Universidad de León, 24071, León, Spain; INDEGSAL, Universidad de León, 24071, León, Spain
| | - Vanesa Robles
- INDEGSAL, Universidad de León, 24071, León, Spain; IEO, Spanish Institute of Oceanography, Planta de Cultivos el Bocal, Barrio Corbanera s/n, Monte, Santander, 39012, Spain
| | - Maria Paz Herráez
- Department of Molecular Biology, Universidad de León, 24071, León, Spain; INDEGSAL, Universidad de León, 24071, León, Spain.
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25
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Abstract
Parthenotes are characterized by poor in vitro developmental potential either due to the ploidy status or the absence of paternal factors. In the present study, we demonstrate the beneficial role of sperm-derived factors (SDF) on the in vitro development of mouse parthenotes. Mature (MII) oocytes collected from superovulated Swiss albino mice were activated using strontium chloride (SrCl2) in the presence or absence of various concentrations of SDF in M16 medium. The presence of SDF in activation medium did not have any significant influence on the activation rate. However, a significant increase in the developmental potential of the embryos and increased blastocyst rate (P < 0.01) was observed at 50 µg/ml concentration. Furthermore, the activated oocytes from this group exhibited early cleavage and cortical distribution of cortical granules that was similar to that of normally fertilized zygotes. Culturing 2-cell stage parthenotes in the presence of SDF significantly improved the developmental potential (P < 0.05) indicating that they also play a significant role in embryo development. In conclusion, artificial activation of oocytes with SDF can improve the developmental potential of parthenotes in vitro.
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26
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Subcellular localization and characterization of estrogenic pathway regulators and mediators in Atlantic salmon spermatozoal cells. Histochem Cell Biol 2017; 149:75-96. [DOI: 10.1007/s00418-017-1611-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2017] [Indexed: 12/26/2022]
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27
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Dai J, Wang Z, Xu W, Zhang M, Zhu Z, Zhao X, Zhang D, Nie D, Wang L, Qiao Z. Paternal nicotine exposure defines different behavior in subsequent generation via hyper-methylation of mmu-miR-15b. Sci Rep 2017; 7:7286. [PMID: 28779169 PMCID: PMC5544724 DOI: 10.1038/s41598-017-07920-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 07/05/2017] [Indexed: 01/06/2023] Open
Abstract
The neurobehavioral effects of paternal smoking and nicotine use have not been widely reported. In the present study, nicotine exposure induced depression in the paternal generation, but reduced depression and promoted hyperactivity in F1 offspring. While this intergenerational effect was not passed down to the F2 generation. Further studies revealed that nicotine induced the down-regulation of mmu-miR-15b expression due to hyper-methylation in the CpG island shore region of mmu-miR-15b in both the spermatozoa of F0 mice and the brains of F1 mice. As the target gene of mmu-miR-15b, Wnt4 expression was elevated in the thalamus of F1 mice due to the inheritance of DNA methylation patterns from the paternal generation. Furthermore, the increased expression of Wnt4 elevated the phosphorylation level of its downstream protein GSK-3 through the canonical WNT4 pathway which involved in the behavioral alterations observed in F1 mice. Moreover, in vivo stereotaxic brain injections were used to induce the overexpression of mmu-miR-15b and WNT4 and confirm the neurobehavioral effects in vitro. The behavioral phenotype of the F1 mice resulting from paternal nicotine exposure could be attenuated by viral manipulation of mmu-miR-15b in the thalamus.
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Affiliation(s)
- Jingbo Dai
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.,College of Medicine, University of Illinois at Chicago, 909 S Wolcott Ave, Chicago, IL, 60612, USA
| | - Zhaoxia Wang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Wangjie Xu
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Meixing Zhang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Zijue Zhu
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Xianglong Zhao
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Dong Zhang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Dongsheng Nie
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Lianyun Wang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
| | - Zhongdong Qiao
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China. .,Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China. .,Brain Science and Technology Research Centre, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China. .,Shanghai Key Laboratory of Psychotic Disorders, Shanghai Institute of Mental Health, Shanghai Jiao Tong University, 600 South Wan Ping Road, Shanghai, 200030, China. .,Shanghai Key Laboratory of reproductive medicine, School of medicine, Shanghai Jiao Tong University, 280 South Chongqing Road, Shanghai, 200025, China.
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28
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Guo L, Chao SB, Xiao L, Wang ZB, Meng TG, Li YY, Han ZM, Ouyang YC, Hou Y, Sun QY, Ou XH. Sperm-carried RNAs play critical roles in mouse embryonic development. Oncotarget 2017; 8:67394-67405. [PMID: 28978041 PMCID: PMC5620181 DOI: 10.18632/oncotarget.18672] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 05/22/2017] [Indexed: 12/19/2022] Open
Abstract
Recently, numerous studies have reported that the mature sperm contains both coding and non-coding RNAs and the sperm delivers some RNAs to the oocyte at fertilization. However, the functions of the RNAs carried to the oocyte by sperm at fertilization in embryonic development remains a mystery. In this study, the mature spermatozoa were treated with lysolecithin, pronase and RNases (RNase A and RNase H) to remove the sperm-carried RNAs, and then injected into normal mature oocyte. The results showed that after the treatment, the content of the sperm RNAs was decreased by about 90%. The blastocyst formation rate and the live birth rate of the embryos from intracytoplasmic sperm injection (ICSI) using the treated sperm were significantly decreased (P<0.01), while these effects were partially rescued by injecting total wide-type sperm RNAs. The reproductive capacity of offspring (F0) in sperm-treated group was similar with that in control group (P>0.05), but the body weight of F1 mice from sperm-treated group was lower than that in control group after two weeks of birth (P<0.05). These results demonstrated that the sperm-carried RNAs have important roles in embryonic development.
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Affiliation(s)
- Lei Guo
- Center for Reproductive Medicine, Guangdong Second Provincial General Hospital, Guangzhou 510317, PR China
| | - Shi-Bin Chao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.,The ART Center, Jiujiang Maternal and Child Health Care Hospital, Jiangxi 332000, PR China
| | - Lu Xiao
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Zhen-Bo Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Tie-Gang Meng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.,Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Yuan-Yuan Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Zhi-Ming Han
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Ying-Chun Ouyang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Yi Hou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Qing-Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiang-Hong Ou
- Center for Reproductive Medicine, Guangdong Second Provincial General Hospital, Guangzhou 510317, PR China
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29
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Chen C, Wu H, Shen D, Wang S, Zhang L, Wang X, Gao B, Wu T, Li B, Li K, Song C. Comparative profiling of small RNAs of pig seminal plasma and ejaculated and epididymal sperm. Reproduction 2017; 153:785-796. [PMID: 28314792 DOI: 10.1530/rep-17-0014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/16/2017] [Accepted: 03/17/2017] [Indexed: 12/19/2022]
Abstract
The similarities and differences of small RNAs in seminal plasma, epididymal sperm and ejaculated sperm remain largely undefined. We conducted a systematic comparative analysis of small RNA profiles in pig ejaculated sperm, epididymal sperm and seminal plasma and found that the diversity distribution of small RNA species was generally similar, whereas the abundance of small RNAs is dramatically different across the three libraries; miRNAs and small RNAs derived from rRNA, tRNA, small nuclear RNA, 7SK RNA, NRON RNA and cis-regulatory RNA were enriched in the three libraries, but piRNA was absent. A large population of small RNAs from ejaculated sperm are ejaculated sperm specific, and only 8-30% of small RNAs overlapped with those of epididymal sperm or seminal plasma and a small proportion (5-18%) of small RNAs were shared in the three libraries, suggesting that, in addition to the testes, sperm RNAs may also originate from seminal plasma, epididymis as well as other resources. Most miRNAs were co-distributed but differentially expressed across the three libraries, with epididymal sperm exhibiting the highest abundance, followed by ejaculated sperm and seminal plasma. The prediction of target genes of the top 10 highly expressed miRNAs across the three libraries revealed that these miRNAs may be involved in spermatogenesis, zygote development and the interaction between the environment and animals. Our study provides the first description of the similarities and differences of small RNA profiles in ejaculated sperm, epididymal sperm and seminal plasma and indicates that sperm RNA may have origins other than the testes.
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Affiliation(s)
- Cai Chen
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of the Ministry of Agriculture of ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China.,Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Han Wu
- Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Dan Shen
- Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Saisai Wang
- Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Li Zhang
- Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xiaoyan Wang
- Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Bo Gao
- Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Tianwen Wu
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of the Ministry of Agriculture of ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bichun Li
- Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - Kui Li
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of the Ministry of Agriculture of ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chengyi Song
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of the Ministry of Agriculture of ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China .,Joint International Research Laboratory of Agriculture and Agri-Product SafetyCollege of Animal Science & Technology, Yangzhou University, Yangzhou, Jiangsu, China
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30
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Zhang X, Gao F, Fu J, Zhang P, Wang Y, Zeng X. Systematic identification and characterization of long non-coding RNAs in mouse mature sperm. PLoS One 2017; 12:e0173402. [PMID: 28291811 PMCID: PMC5349675 DOI: 10.1371/journal.pone.0173402] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 02/20/2017] [Indexed: 12/11/2022] Open
Abstract
Increasing studies have shown that mature spermatozoa contain many transcripts including mRNAs and miRNAs. However, the expression profile of long non-coding RNAs (lncRNAs) in mammalian sperm has not been systematically investigated. Here, we used highly purified RNA to investigate lncRNA expression profiles in mouse mature sperm by stranded-specific RNA-seq. We identified 20,907 known and 4,088 novel lncRNAs transcripts, and the existence of intact lncRNAs was confirmed by RT-PCR and fluorescence in situ hybridization on two representative lncRNAs. Compared to round spermatids, 1,794 upregulated and 165 downregulated lncRNAs and 4,435 upregulated and 3,920 downregulated mRNAs were identified in sperm. Based on the "Cis and Trans" RNA-RNA interaction principle, we found 14,259 targeted coding genes of differently expressed lncRNAs. In terms of Gene ontology (GO) analysis, differentially expressed lncRNAs targeted genes mainly related to nucleic acid metabolic, protein modification, chromatin and histone modification, heterocycle compound metabolic, sperm function, spermatogenesis and other processes. In contrast, differentially expressed transcripts of mRNAs were highly enriched for protein metabolic process and RNA metabolic, spermatogenesis, sperm motility, cell cycle, chromatin organization, heterocycle and aromatic compound metabolic processes. Kyoto encyclopedia of genes and genomes (KEGG) pathway analysis showed that the differentially expressed lncRNAs were involved in RNA transport, mRNA surveillance pathway, PI3K-Akt signaling pathway, AMPK signaling pathway, protein processing in endoplasmic reticulum. Metabolic pathways, mRNA surveillance pathway, AMPK signaling pathway, cell cycle, RNA transport splicesome and endocytosis incorporated with the differentially expressed mRNA. Furthermore, many lncRNAs were specifically expressed in testis/sperm, and 880 lncRNAs were conserved between human and mouse. In summary, this study provides a preliminary database valuable for identifying lncRNAs critical in the late stage of spermatogenesis or important for sperm function regulation, fertilization and early embryo development.
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Affiliation(s)
- Xiaoning Zhang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Fengxin Gao
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Jianbo Fu
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Peng Zhang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Yuqing Wang
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Xuhui Zeng
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
- * E-mail:
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31
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Selvaraju S, Parthipan S, Somashekar L, Kolte AP, Krishnan Binsila B, Arangasamy A, Ravindra JP. Occurrence and functional significance of the transcriptome in bovine (Bos taurus) spermatozoa. Sci Rep 2017; 7:42392. [PMID: 28276431 PMCID: PMC5343582 DOI: 10.1038/srep42392] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 01/09/2017] [Indexed: 12/17/2022] Open
Abstract
Mammalian spermatozoa deliver various classes of RNAs to the oocyte during fertilization, and many of them may regulate fertility. The objective of the present study was to determine the composition and abundance of spermatozoal transcripts in fresh bull semen. The entire transcriptome of the spermatozoa from bulls (n = 3) was sequenced using two different platforms (Ion Proton and Illumina) to identify the maximum number of genes present in the spermatozoa. The bovine spermatozoa contained transcripts for 13,833 genes (transcripts per million, TPM > 10). Both intact and fragmented transcripts were found. These spermatozoal transcripts were associated with various stages of spermatogenesis, spermatozoal function, fertilization, and embryo development. The presence of intact transcripts of pregnancy-associated glycoproteins (PAGs) in the spermatozoa suggest a possible influence of sperm transcripts beyond early embryonic development. The specific regions (exon, intron, and exon-intron) of the particular spermatozoal transcripts might help regulate fertilization. This study demonstrates that the use of two different RNA-seq platforms provides a comprehensive profile of bovine spermatozoal RNA. Spermatozoal RNA profiling may be useful as a non-invasive method to delineate possible causes of male infertility and to predict fertility in a manner that is more effective than the conventional methods.
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Affiliation(s)
- Sellappan Selvaraju
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR- National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, India
| | - Sivashanmugam Parthipan
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR- National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, India
| | - Lakshminarayana Somashekar
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR- National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, India
| | - Atul P Kolte
- Omics Laboratory, Animal Nutrition Division, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, India
| | - B Krishnan Binsila
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR- National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, India
| | - Arunachalam Arangasamy
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR- National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, India
| | - Janivara Parameshwaraiah Ravindra
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR- National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru-560030, India
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32
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Dysregulation of long noncoding RNAs in mouse testes and spermatozoa after exposure to cadmium. Biochem Biophys Res Commun 2017; 484:8-14. [DOI: 10.1016/j.bbrc.2017.01.091] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 01/18/2017] [Indexed: 11/17/2022]
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33
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Abstract
Recent discoveries on the delivery of small- and large-size molecules and organelles to the oocytes/eggs from external sources, such as surrounding somatic cells, body fluids, and sperm, change our understanding of female germ cells' (oocytes and eggs) self-containment and individuality. In this chapter, we will summarize present-day knowledge on sources and presumptive functions of different types of exogenous molecules and organelles delivered to the animal oocytes and eggs.
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Affiliation(s)
- Malgorzata Kloc
- The Houston Methodist Research Institute, Houston, TX, USA. .,Department of Surgery, The Houston Methodist Hospital, 6550 Fannin St., Houston, TX, 77030, USA.
| | - Jacek Z Kubiak
- CNRS UMR 6290, Cell Cycle Group, Institute of Genetics and Development of Rennes, Rennes, France.,University of Rennes 1, Faculty of Medicine, Rennes, France.,Department of Regenerative Medicine, Military Institute of Hygiene and Epidemiology (WIHE), Warsaw, Poland
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34
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Schuster A, Tang C, Xie Y, Ortogero N, Yuan S, Yan W. SpermBase: A Database for Sperm-Borne RNA Contents. Biol Reprod 2016; 95:99. [PMID: 27628216 PMCID: PMC5178153 DOI: 10.1095/biolreprod.116.142190] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 09/07/2016] [Indexed: 12/31/2022] Open
Abstract
Since their discovery approximately three decades ago, sperm-borne RNAs, both large/small and coding/noncoding, have been reported in multiple organisms, and some have been implicated in spermatogenesis, early development, and epigenetic inheritance. Despite these advances, isolation, quantification, and annotation of sperm-borne RNAs remain nontrivial. The yields and subspecies of sperm-borne RNAs isolated from sperm can vary drastically depending on the methods used, and no cross-species analyses of sperm RNA contents have ever been conducted using a standardized sperm RNA isolation protocol. To address these issues, we developed a simple RNA isolation method that is applicable to sperm of various species, thus allowing for reliable interspecies comparisons. Based on RNA-Seq analyses, we established SpermBase (
www.spermbase.org), a database dedicated to sperm-borne RNA profiling of multiple species. Currently, SpermBase contains large and small RNA expression data for mouse, rat, rabbit, and human total sperm and sperm heads. By analyzing large and small RNAs for conserved features, we found that many sperm-borne RNA species were conserved across all four species analyzed, and among the conserved small RNAs, sperm-borne tRNA-derived small noncoding RNAs and miRNAs can target a large number of genes known to be critical for early development.
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Affiliation(s)
- Andrew Schuster
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada
| | - Chong Tang
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada
| | - Yeming Xie
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada
| | - Nicole Ortogero
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada
| | - Shuiqiao Yuan
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada
| | - Wei Yan
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada
- Department of Biology, University of Nevada, Reno, Reno, Nevada
- Correspondence: Wei Yan, University of Nevada, Reno School of Medicine, Center for Molecular Medicine, Room 207B, 1664 North Virginia Street, MS/0575, Reno, NV 89557. E-mail:
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35
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Liu ZQ, Jiang XH, Qi HY, Xiong LW, Qiu GF. A novel SoxB2 gene is required for maturation of sperm nucleus during spermiogenesis in the Chinese mitten crab, Eriocheir sinensis. Sci Rep 2016; 6:32139. [PMID: 27561408 PMCID: PMC4999818 DOI: 10.1038/srep32139] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 08/03/2016] [Indexed: 01/10/2023] Open
Abstract
SRY-related HMG box (Sox) genes are characterized by the presence of a DNA-binding HMG domain and involved in a diverse range of developmental processes. In this study, we identified a novel Sox gene, designated as EsSoxB2-1, from the Chinese mitten crab Eriocheir sinensis. The EsSoxB2-1 encodes a protein of 259 amino acids, sharing the highest identity with the beetle Tribolium castaneum SOX21b. Unlike insect Sox21b, however, EsSoxB2-1 is intronless and exhibits a gonad-specific expression pattern at both mRNA and protein level. Two core promoters in 5′ flanking region were demonstrated to be essential for inducing transcriptional regulatory activity. The transcription of EsSoxB2-1 mRNA begins in spermatogonia stage, while the translation of EsSOXB2-1 protein initiates at spermiogenesis stage. Interestingly, EsSOXB2-1 protein was exclusively localized in the nucleus of spermatid and spermatozoa even at the end of acrosome reaction, and was bound to the uncondensed chromatin in nucleoplasm of mature spermatozoa. Knockdown of EsSoxB2-1 by RNAi leads to abnormal transformation of the nucleus during spermiogenesis. Together, these findings demonstrated the requirement of EsSoxB2-1 for the spermatozoa nucleus maturation and also suggested that EsSoxB2-1 would be delivered into fertilized eggs along with chromatins as a paternal transcription factor for regulating early embryonic development.
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Affiliation(s)
- Zhi-Qiang Liu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources Certificated by Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai, 201306, P. R. China
| | - Xue-Hui Jiang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources Certificated by Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai, 201306, P. R. China
| | - Hai-Yan Qi
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources Certificated by Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai, 201306, P. R. China
| | - Liang-Wei Xiong
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources Certificated by Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai, 201306, P. R. China
| | - Gao-Feng Qiu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources Certificated by Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai, 201306, P. R. China
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36
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The Epigenetic Consequences of Paternal Exposure to Environmental Contaminants and Reproductive Toxicants. Curr Environ Health Rep 2016; 3:202-13. [DOI: 10.1007/s40572-016-0101-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Nie D, Zhang D, Dai J, Zhang M, Zhao X, Xu W, Chen Z, Wang L, Wang Z, Qiao Z. Nicotine Induced Murine Spermatozoa Apoptosis via Up-Regulation of Deubiquitinated RIP1 by Trim27 Promoter Hypomethylation1. Biol Reprod 2016; 94:31. [DOI: 10.1095/biolreprod.115.131656] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 11/19/2015] [Indexed: 12/21/2022] Open
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Schubert C. Don't Play with Histones. Biol Reprod 2016. [DOI: 10.1095/biolreprod.115.136275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Lombó M, Fernández-Díez C, González-Rojo S, Navarro C, Robles V, Herráez MP. Transgenerational inheritance of heart disorders caused by paternal bisphenol A exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2015; 206:667-678. [PMID: 26322593 DOI: 10.1016/j.envpol.2015.08.016] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/30/2015] [Accepted: 08/03/2015] [Indexed: 06/04/2023]
Abstract
Bisphenol A (BPA) is an endocrine disruptor used in manufacturing of plastic devices, resulting in an ubiquitous presence in the environment linked to human infertility, obesity or cardiovascular diseases. Both transcriptome and epigenome modifications lie behind these disorders that might be inherited transgenerationally when affecting germline. To assess potential effects of paternal exposure on offspring development, adult zebrafish males were exposed to BPA during spermatogenesis and mated with non-treated females. Results showed an increase in the rate of heart failures of progeny up to the F2, as well as downregulation of 5 genes involved in cardiac development in F1 embryos. Moreover, BPA causes a decrease in F0 and F1 sperm remnant mRNAs related to early development. Results reveal a paternal inheritance of changes in the insulin signaling pathway due to downregulation of insulin receptor β mRNAs, suggesting a link between BPA male exposure and disruption of cardiogenesis in forthcoming generations.
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Affiliation(s)
- Marta Lombó
- Department of Molecular Biology, Faculty of Biology, University of León, Campus Vegazana s/n, León, 24071, Spain
| | - Cristina Fernández-Díez
- Department of Molecular Biology, Faculty of Biology, University of León, Campus Vegazana s/n, León, 24071, Spain
| | - Silvia González-Rojo
- Department of Molecular Biology, Faculty of Biology, University of León, Campus Vegazana s/n, León, 24071, Spain
| | - Claudia Navarro
- Department of Molecular Biology, Faculty of Biology, University of León, Campus Vegazana s/n, León, 24071, Spain
| | - Vanesa Robles
- Spanish Institute of Oceanography (IEO), Promontorio de San Martín s/n, 39004, Santander, Spain
| | - María Paz Herráez
- Department of Molecular Biology, Faculty of Biology, University of León, Campus Vegazana s/n, León, 24071, Spain.
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Johnson GD, Mackie P, Jodar M, Moskovtsev S, Krawetz SA. Chromatin and extracellular vesicle associated sperm RNAs. Nucleic Acids Res 2015; 43:6847-59. [PMID: 26071953 PMCID: PMC4538811 DOI: 10.1093/nar/gkv591] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 05/23/2015] [Indexed: 12/16/2022] Open
Abstract
A diverse pool of RNAs remain encapsulated within the transcriptionally silent spermatozoon despite the dramatic reduction in cellular and nuclear volume following cytoplasm/nucleoplasm expulsion. The impact of this pronounced restructuring on the distribution of transcripts inside the sperm essentially remains unknown. To define their compartmentalization, total RNA >100 nt was extracted from sonicated (SS) mouse spermatozoa and detergent demembranated sucrose gradient fractionated (Cs/Tx) sperm heads. Sperm RNAs predominately localized toward the periphery. The corresponding distribution of transcripts and thus localization and complexity were then inferred by RNA-seq. Interestingly, the number of annotated RNAs in the CsTx sperm heads exhibiting reduced peripheral enrichment was restricted. However this included Cabyr, the calcium-binding tyrosine phosphorylation-regulated protein encoded transcript. It is present in murine zygotes prior to the maternal to the zygotic transition yet absent in oocytes, consistent with the delivery of internally positioned sperm-borne RNAs to the embryo. In comparison, transcripts enriched in sonicated sperm contributed to the mitochondria and exosomes along with several nuclear transcripts including the metastasis associated lung adenocarcinoma transcript 1 (Malat1) and several small nucleolar RNAs. Their preferential peripheral localization suggests that chromatin remodeling during spermiogenesis is not limited to nucleoproteins as part of the nucleoprotein exchange.
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Affiliation(s)
- Graham D Johnson
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Paula Mackie
- CReATe Fertility Centre, Toronto, ON, M5G 1N8, Canada
| | - Meritxell Jodar
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI 48201, USA Department of Obstetrics and Gynaecology, University of Toronto, ON, M5G 1E2, Canada
| | - Sergey Moskovtsev
- CReATe Fertility Centre, Toronto, ON, M5G 1N8, Canada Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Stephen A Krawetz
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI 48201, USA Department of Obstetrics and Gynaecology, University of Toronto, ON, M5G 1E2, Canada
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Miller D. Confrontation, Consolidation, and Recognition: The Oocyte's Perspective on the Incoming Sperm. Cold Spring Harb Perspect Med 2015; 5:a023408. [PMID: 25957313 PMCID: PMC4526728 DOI: 10.1101/cshperspect.a023408] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
From the oocyte's perspective, the incoming sperm poses a significant challenge. Despite (usually) arising from a male of the same species, the sperm is a "foreign" body that may carry with it additional, undesirable factors such as transposable elements (mainly retroposons) into the egg. These factors can arise either during spermatogenesis or while the sperm is moving through the epididymis or the female genital tract. Furthermore, in addition to the paternal genome, the sperm also carries its own complex repertoire of RNAs into the egg that includes mRNAs, lncRNAs, and sncRNAs. Last, the paternal genome itself is efficiently packaged into a protamine (nucleo-toroid) and histone (nucleosome)-based chromatin scaffold within which much of the RNA is embedded. Taken together, the sperm delivers a far more complex package to the egg than was originally thought. Understanding this complexity, at both the compositional and structural level, depends largely on investigating sperm chromatin from both the genomic (DNA packaging) and epigenomic (RNA carriage and extant histone modifications) perspectives. Why this complexity has arisen and its likely purpose requires us to look more closely at what happens in the oocyte when the sperm gains entry and the processes that then take place preparing the paternal (and maternal) genomes for syngamy.
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Affiliation(s)
- David Miller
- Institute of Cardiovascular and Metabolic Medicine (LICAMM), LIGHT Laboratories, University of Leeds, Leeds, LS2 9JT West Yorkshire, United Kingdom
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Wei JH, Feng X, Sun ZJ, Cheng P, Ma BF, Zhao J, Dong YH, Zhang YQ, Li Z. Different locations of RANTES and its receptors on mouse epididymal spermatozoa. Reprod Fertil Dev 2015; 28:RD14231. [PMID: 25786351 DOI: 10.1071/rd14231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 02/09/2015] [Indexed: 02/28/2024] Open
Abstract
Our previous study showed that the chemokine regulated upon activation normal T-cell expressed and secreted (RANTES) originating from the mouse epididymis bound to the midpiece of luminal spermatozoa. The present study was undertaken to investigate the association between RANTES and epididymal spermatozoa and to determine whether the association is mediated by the RANTES receptors CCR1, CCR3 or CCR5. The use of reverse transcription polymerase chain reaction (RT-PCR), immunohistochemical staining and immunofluorescent staining demonstrated that RANTES secreted by apical and narrow cells of mouse epididymal ducts was associated with luminal spermatozoa. Flow cytometric analysis and immunofluorescent labelling revealed that the association between RANTES and spermatozoa of different regions weakened gradually as the spermatozoa moved along the epididymis. Moreover, CCR1, CCR3 and CCR5 were expressed in epididymal spermatozoa and located on the head of epididymal spermatozoa, while RANTES was generally located at the midpiece. In conclusion, RANTES and its receptors were not in the same sperm location, suggesting that RANTES binding to mouse epididymal spermatozoa is independent of CCR1, CCR3 and CCR5.
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Schubert C. Planting the Paternal Genome. Biol Reprod 2014. [DOI: 10.1095/biolreprod.114.125062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Abstract
Sperm RNA has been linked recently to trans-generational, non-Mendelian patterns of inheritance. Originally dismissed as “residual” to spermatogenesis, some sperm RNA may have postfertilization functions including the transmission of acquired characteristics. Sperm RNA may help explain how trans-generational effects are transmitted and it may also have implications for assisted reproductive technologies (ART) where sperm are subjected to considerable, ex vivo manual handling. The presence of sperm RNA was originally a controversial topic because nuclear gene expression is switched off in the mature mammalian spermatozoon. With the recent application of next generation sequencing (NGS), an unexpectedly rich and complex repertoire of RNAs has been revealed in the sperm of several species that makes its residual presence counterintuitive. What follows is a personal survey of the science behind our understanding of sperm RNA and its functional significance based on experimental observations from my laboratory as well as many others who have contributed to the field over the years and are continuing to contribute today. The narrative begins with a historical perspective and ends with some educated speculation on where research into sperm RNA is likely to lead us in the next 10 years or so.
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