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Sahota JS, Thakur RS, Guleria K, Sambyal V. RAD51 and Infertility: A Review and Case-Control Study. Biochem Genet 2024; 62:1216-1230. [PMID: 37563467 DOI: 10.1007/s10528-023-10469-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 07/24/2023] [Indexed: 08/12/2023]
Abstract
RAD51 is a highly conserved recombinase involved in the strand invasion/exchange of double-stranded DNA by homologous single-stranded DNA during homologous recombination repair. Although a majority of existing literature associates RAD51 with the pathogenesis of various types of cancer, recent reports indicate a role of RAD51 in maintenance of fertility. The present study reviews the role of RAD51 and its interacting proteins in spermatogenesis/oogenesis and additionally reports the findings from the molecular genetic screening of RAD51 135 G > C polymorphism in infertile cases and controls. Fifty-nine articles from PubMed and Google Scholar related to the reproductive role of RAD51 were reviewed. For case-control study, the PCR-RFLP method was used to screen the RAD51 135 G > C polymorphism in 201 infertile cases (100 males, 101 females) and 201 age- and gender-matched healthy controls (100 males, 101 females) from Punjab, North-West India. The review of literature shows that RAD51 is indispensable for spermatogenesis and oogenesis in animal models. Reports on the role of RAD51 in human fertility are limited, however it is involved in the pathogenesis of infertility in both males and females. Molecular genetic analyses in the infertile cases and healthy controls showed no statistically significant difference in the genotypic and allelic frequencies for RAD51 135 G > C polymorphism, even after segregation of the cases by type of infertility (primary/secondary). Therefore, the present study concluded that the RAD51 135 G > C polymorphism was neither associated with male nor female infertility in North-West Indians. This is the first report on RAD51 135 G > C polymorphism and infertility.
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Affiliation(s)
- Jatinder Singh Sahota
- Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University (GNDU), Amritsar, 143005, Punjab, India
| | - Ranveer Singh Thakur
- Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University (GNDU), Amritsar, 143005, Punjab, India
| | - Kamlesh Guleria
- Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University (GNDU), Amritsar, 143005, Punjab, India
| | - Vasudha Sambyal
- Cytogenetics Laboratory, Department of Human Genetics, Guru Nanak Dev University (GNDU), Amritsar, 143005, Punjab, India.
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2
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AbuAlia KFN, Damm E, Ullrich KK, Mukaj A, Parvanov E, Forejt J, Odenthal-Hesse L. Natural variation in the zinc-finger-encoding exon of Prdm9 affects hybrid sterility phenotypes in mice. Genetics 2024; 226:iyae004. [PMID: 38217871 PMCID: PMC10917509 DOI: 10.1093/genetics/iyae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/15/2024] Open
Abstract
PRDM9-mediated reproductive isolation was first described in the progeny of Mus musculus musculus (MUS) PWD/Ph and Mus musculus domesticus (DOM) C57BL/6J inbred strains. These male F1 hybrids fail to complete chromosome synapsis and arrest meiosis at prophase I, due to incompatibilities between the Prdm9 gene and hybrid sterility locus Hstx2. We identified 14 alleles of Prdm9 in exon 12, encoding the DNA-binding domain of the PRDM9 protein in outcrossed wild mouse populations from Europe, Asia, and the Middle East, 8 of which are novel. The same allele was found in all mice bearing introgressed t-haplotypes encompassing Prdm9. We asked whether 7 novel Prdm9 alleles in MUS populations and the t-haplotype allele in 1 MUS and 3 DOM populations induce Prdm9-mediated reproductive isolation. The results show that only combinations of the dom2 allele of DOM origin and the MUS msc1 allele ensure complete infertility of intersubspecific hybrids in outcrossed wild populations and inbred mouse strains examined so far. The results further indicate that MUS mice may share the erasure of PRDM9msc1 binding motifs in populations with different Prdm9 alleles, which implies that erased PRDM9 binding motifs may be uncoupled from their corresponding Prdm9 alleles at the population level. Our data corroborate the model of Prdm9-mediated hybrid sterility beyond inbred strains of mice and suggest that sterility alleles of Prdm9 may be rare.
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Affiliation(s)
- Khawla F N AbuAlia
- Research Group Meiotic Recombination and Genome Instability, Max Planck Institute for Evolutionary Biology, Plön D-24306, Germany
| | - Elena Damm
- Research Group Meiotic Recombination and Genome Instability, Max Planck Institute for Evolutionary Biology, Plön D-24306, Germany
| | - Kristian K Ullrich
- Research Group Meiotic Recombination and Genome Instability, Max Planck Institute for Evolutionary Biology, Plön D-24306, Germany
| | - Amisa Mukaj
- Laboratory of Mouse Molecular Genetics, Institute of Molecular Genetics, Czech Academy of Sciences, Vestec CZ-25250, Czech Republic
| | - Emil Parvanov
- Laboratory of Mouse Molecular Genetics, Institute of Molecular Genetics, Czech Academy of Sciences, Vestec CZ-25250, Czech Republic
- Department of Translational Stem Cell Biology, Research Institute of the Medical University of Varna, 9002 Varna, Bulgaria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria
| | - Jiri Forejt
- Laboratory of Mouse Molecular Genetics, Institute of Molecular Genetics, Czech Academy of Sciences, Vestec CZ-25250, Czech Republic
| | - Linda Odenthal-Hesse
- Research Group Meiotic Recombination and Genome Instability, Max Planck Institute for Evolutionary Biology, Plön D-24306, Germany
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Li Q, Hu Z, He J, Liu X, Liu Y, Wei J, Wu B, Lu X, He H, Zhang Y, He J, Li M, Wu C, Lv L, Wang Y, Zhou L, Zhang Q, Zhang J, Cheng X, Shao H, Lu X. Deciphering the comprehensive knowledgebase landscape featuring infertility with IDDB Xtra. Comput Biol Med 2024; 170:108105. [PMID: 38330823 DOI: 10.1016/j.compbiomed.2024.108105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/15/2024] [Accepted: 02/04/2024] [Indexed: 02/10/2024]
Abstract
Infertility affects ∼15% of couples globally and half of cases are related to genetic disorders. Despite growing data and unprecedented improvements in high-throughput sequencing technologies, accumulated fertility-related issues concerning genetic diagnosis and potential treatment are urgent to be solved. However, there is a lack of comprehensive platforms that characterise various infertility-related records to provide research applications for exploring infertility in-depth and genetic counselling of infertility couple. To solve this problem, we provide IDDB Xtra by further integrating phenotypic manifestations, genomic datasets, epigenetics, modulators in collaboration with numerous interactive tools into our previous infertility database, IDDB. IDDB Xtra houses manually-curated 2369 genes of human and nine model organisms, 273 chromosomal abnormalities, 884 phenotypes, 60 genomic datasets, 464 epigenetic records, 1144 modulators relevant to infertility diagnosis and treatment. Additionally, IDDB Xtra incorporated customized graphical applications for researchers and clinicians to decipher in-depth disease mechanisms from the perspectives of developmental atlas, mutation effects, and clinical manifestations. Users can browse genes across developmental stages of human and mouse, filter candidate genes, mine potential variants and retrieve infertility biomedical network in an intuitive web interface. In summary, IDDB Xtra not only captures valuable research and data, but also provides useful applications to facilitate the genetic counselling and drug discovery of infertility. IDDB Xtra is freely available at https://mdl.shsmu.edu.cn/IDDB/and http://www.allostery.net/IDDB.
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Affiliation(s)
- Qian Li
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200011, China; Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Zhijie Hu
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200011, China
| | - Jiayin He
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200011, China; Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Xinyi Liu
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Yini Liu
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200011, China; Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Jiale Wei
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Binjian Wu
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Xun Lu
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Hongxi He
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200011, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510000, China
| | - Yuqi Zhang
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200011, China
| | - Jixiao He
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Mingyu Li
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Chengwei Wu
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Lijun Lv
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Yang Wang
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Linxuan Zhou
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Quan Zhang
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Jian Zhang
- Medicinal Bioinformatics Center, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510000, China.
| | - Xiaoyue Cheng
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200135, China.
| | - Hongfang Shao
- Center of Reproductive Medicine, Department of Gynecology and Obstetrics, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai, 200233, China.
| | - Xuefeng Lu
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200011, China.
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Gil Laborda R, de Frías ER, Subhi-Issa N, de Albornoz EC, Meliá E, Órdenes M, Verdú V, Vidal J, Suárez E, Santillán I, Ordóñez D, Pintado-Vera D, González Villafáñez V, Lorenzo Á, Fariñas M, Rodríguez-Paíno M, Núñez Beltrán M, García Segovia Á, Del Olmo A, Martín Cañadas F, Daurelio R, de la Fuente A, González Casbas JM, Cabezuelo V, Ros Berruezo F, Moreno Hidalgo MÁ, Iniesta S, Bueno B, Martínez Acera Á, Izquierdo A, Vicario JL, Fernández-Arquero M, Sánchez-Ramón S. Centromeric AA motif in KIR as an optimal surrogate marker for precision definition of alloimmune reproductive failure. Sci Rep 2024; 14:3354. [PMID: 38336826 PMCID: PMC10858137 DOI: 10.1038/s41598-024-53766-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 02/05/2024] [Indexed: 02/12/2024] Open
Abstract
Throughout pregnancy, the decidua is predominantly populated by NK lymphocytes expressing Killer immunoglobulin-like receptors (KIR) that recognize human leukocyte antigen-C (HLA-C) ligands from trophoblast cells. This study aims to investigate the association of KIR-HLA-C phenotypes in couples facing infertility, particularly recurrent pregnancy loss (RPL) and recurrent implantation failure (RIF), in comparison to a reference population and fertile controls. This observational, non-interventional retrospective case-control study included patients consecutively referred to our Reproductive Immunology Unit from 2015 to 2019. We analyzed the frequencies of KIR and HLA-C genes. As control groups, we analyzed a reference Spanish population for KIR analysis and 29 fertile controls and their male partners for KIR and HLA-C combinations. We studied 397 consecutively referred women with infertility and their male partners. Among women with unexplained RPL (133 women) and RIF (176 women), the centromeric (cen)AA KIR genotype was significantly more prevalent compared to the reference Spanish population (p = 0.001 and 0.02, respectively). Furthermore, cenAA was associated with a 1.51-fold risk of RPL and a 1.2-fold risk of RIF. Conversely, the presence of BB KIR showed a lower risk of reproductive failure compared to non-BB KIR (OR: 0.12, p < 0.001). Women and their partners with HLA-C1C1/C1C1 were significantly less common in the RPL-Group (p < 0.001) and RIF-Group (p = 0.002) compared to the control group. Moreover, the combination of cenAA/C1C1 in women with C1C1 partners was significantly higher in the control group than in the RPL (p = 0.009) and RIF (p = 0.04) groups, associated with a 5-fold increase in successful pregnancy outcomes. In our cohort, the cenAA KIR haplotype proved to be a more accurate biomarker than the classic AA KIR haplotype for assessing the risk of RPL and RIF, and might be particularly useful to identify women at increased risk among the heterogeneous KIR AB or Bx population. The classification of centromeric KIR haplotypes outperforms classical KIR haplotypes, making it a better indicator of potential maternal-fetal KIR-HLA-C mismatch in patients.
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Affiliation(s)
- Raquel Gil Laborda
- Department of Immunology, IML and IdISSC, Hospital Clínico San Carlos, Madrid, Spain
| | | | - Nabil Subhi-Issa
- Department of Immunology, IML and IdISSC, Hospital Clínico San Carlos, Madrid, Spain
| | - Elena Carrillo de Albornoz
- Woman Unit, Hospital Ruber Internacional, Madrid, Spain
- Assisted Reproductive Unit, Hospital Ruber Internacional, Madrid, Spain
| | - Elena Meliá
- Woman Unit, Hospital Ruber Internacional, Madrid, Spain
| | - Marcos Órdenes
- Assisted Reproductive Unit, Hospital Ruber Internacional, Madrid, Spain
| | - Victoria Verdú
- Clínica GINEFIV, Madrid, Spain
- Clínica IVF, Madrid, Spain
| | - Juan Vidal
- Woman Unit, Hospital Ruber Internacional, Madrid, Spain
| | - Esther Suárez
- Woman Unit, Hospital Ruber Internacional, Madrid, Spain
| | - Isabel Santillán
- Clínica GINEFIV, Madrid, Spain
- Instituto Europeo de Fertilidad (IEF), Madrid, Spain
| | - Daniel Ordóñez
- Woman Unit, Hospital Ruber Internacional, Madrid, Spain
- Assisted Reproductive Unit, Hospital Ruber Internacional, Madrid, Spain
| | | | | | - Ángel Lorenzo
- Woman Unit, Hospital Ruber Internacional, Madrid, Spain
- Assisted Reproductive Unit, Hospital Ruber Internacional, Madrid, Spain
| | | | | | - María Núñez Beltrán
- Department of Immunology, IML and IdISSC, Hospital Clínico San Carlos, Madrid, Spain
| | - Áurea García Segovia
- Sanitas Assisted Reproduction Unit, Clínica Sanitas Millenium Alcobendas, Madrid, Spain
| | - Ainhoa Del Olmo
- Department of Immunology, IML and IdISSC, Hospital Clínico San Carlos, Madrid, Spain
| | | | | | | | | | | | | | | | - Silvia Iniesta
- Assisted Reproductive Unit, Hospital Ruber Internacional, Madrid, Spain
| | - Beatriz Bueno
- Assisted Reproductive Unit, Hospital Ruber Internacional, Madrid, Spain
| | - Álvaro Martínez Acera
- Woman Unit, Hospital Ruber Internacional, Madrid, Spain
- Assisted Reproductive Unit, Hospital Ruber Internacional, Madrid, Spain
| | - Alexandra Izquierdo
- Department of Immunology, IML and IdISSC, Hospital Clínico San Carlos, Madrid, Spain
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Avidor-Reiss T. Renaissance in sperm cytoplasmic contribution to infertility. J Assist Reprod Genet 2024; 41:293-296. [PMID: 37955781 PMCID: PMC10894777 DOI: 10.1007/s10815-023-02987-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023] Open
Affiliation(s)
- Tomer Avidor-Reiss
- Department of Biological Sciences, College of Natural Sciences and Mathematics, University of Toledo, Toledo, OH, 43607, USA.
- Department of Urology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, 43607, USA.
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Clot CR, Klein D, Koopman J, Schuit C, Engelen CJM, Hutten RCB, Brouwer M, Visser RGF, Jurani M, van Eck HJ. Crossover shortage in potato is caused by StMSH4 mutant alleles and leads to either highly uniform unreduced pollen or sterility. Genetics 2024; 226:iyad194. [PMID: 37943687 PMCID: PMC10763545 DOI: 10.1093/genetics/iyad194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/27/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023] Open
Abstract
The balanced segregation of homologous chromosomes during meiosis is essential for fertility and is mediated by crossovers (COs). A strong reduction of CO number leads to the unpairing of homologous chromosomes after the withdrawal of the synaptonemal complex. This results in the random segregation of univalents during meiosis I and ultimately to the production of unbalanced and sterile gametes. However, if CO shortage is combined with another meiotic alteration that restitutes the first meiotic division, then uniform and balanced unreduced male gametes, essentially composed of nonrecombinant homologs, are produced. This mitosis-like division is of interest to breeders because it transmits most of the parental heterozygosity to the gametes. In potato, CO shortage, a recessive trait previously referred to as desynapsis, was tentatively mapped to chromosome 8. In this article, we have fine-mapped the position of the CO shortage locus and identified StMSH4, an essential component of the class I CO pathway, as the most likely candidate gene. A 7 base-pair insertion in the second exon of StMSH4 was found to be associated with CO shortage in our mapping population. We also identified a second allele with a 3,820 base-pair insertion and confirmed that both alleles cannot complement each other. Such nonfunctional alleles appear to be common in potato cultivars. More than half of the varieties we tested are carriers of mutational load at the StMSH4 locus. With this new information, breeders can choose to remove alleles associated with CO shortage from their germplasm to improve fertility or to use them to produce highly uniform unreduced male gametes in alternative breeding schemes.
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Affiliation(s)
- Corentin R Clot
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
- Graduate School Experimental Plant Sciences, Wageningen University & Research, Wageningen, 6708 PB, The Netherlands
| | - Dennis Klein
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
| | - Joey Koopman
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
| | - Cees Schuit
- Bejo Zaden B.V., Warmenhuizen, 1749 CZ, The Netherlands
| | - Christel J M Engelen
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
| | - Ronald C B Hutten
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
| | - Matthijs Brouwer
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
| | - Richard G F Visser
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
| | - Martina Jurani
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
| | - Herman J van Eck
- Plant Breeding, Wageningen University & Research, Wageningen, 6700 AJ, The Netherlands
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Matveevsky SN, Kolomiets OL, Shchipanov NA, Pavlova SV. Natural male hybrid common shrews with a very long chromosomal multivalent at meiosis appear not to be completely sterile. J Exp Zool B Mol Dev Evol 2024; 342:45-58. [PMID: 38059675 DOI: 10.1002/jez.b.23232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 11/09/2023] [Accepted: 11/19/2023] [Indexed: 12/08/2023]
Abstract
Among 36 known chromosomal hybrid zones of the common shrew Sorex araneus, the Moscow-Seliger hybrid zone is of special interest because inter-racial complex heterozygotes (F1 hybrids) produce the longest meiotic configuration, consisting of 11 chromosomes with monobrachial homology (undecavalent or chain-of-eleven: CXI). Different studies suggest that such a multivalent may negatively affect meiotic progression and in general should significantly reduce fertility of hybrids. In this work, by immunocytochemical and electron microscopy methods, we investigated for the first time chromosome synapsis, recombination and meiotic silencing in pachytene spermatocytes of natural inter-racial heterozygous shrew males carrying CXI configurations. Despite some abnormalities detected in spermatocytes, such as associations of chromosomes, stretched centromeres, and the absence of recombination nodules in some arms of the multivalent, a large number of morphologically normal spermatozoa were observed. Possible low stringency of pachytene checkpoints may mean that even very long meiotic configurations do not cause complete sterility of such complex inter-racial heterozygotes.
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Affiliation(s)
- Sergey N Matveevsky
- Cytogenetics Laboratory, Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Oxana L Kolomiets
- Cytogenetics Laboratory, Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Nikolay A Shchipanov
- Laboratory of Population Ecology, A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia
| | - Svetlana V Pavlova
- Laboratory of Population Ecology, A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia
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Crafa A, Leanza C, Condorelli RA, La Vignera S, Calogero AE, Cannarella R. Relationship between degree of methylation of sperm long interspersed nuclear element-1 (LINE-1) gene and alteration of sperm parameters and age: a meta-regression analysis. J Assist Reprod Genet 2024; 41:87-97. [PMID: 37921972 PMCID: PMC10789695 DOI: 10.1007/s10815-023-02980-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/20/2023] [Indexed: 11/05/2023] Open
Abstract
INTRODUCTION The long interspersed nuclear element-1 (LINE1) gene is a retrotransposon whose methylation status appears to play a role in spermatogenesis, the outcome of assisted reproductive techniques (ART), and even in recurrent pregnancy loss (RPL). Advanced paternal age appears associated with altered sperm parameters, RPL, poor ART outcomes, and compromised offspring health. The methylation status of LINE1 has been reported to be affected by age. The latest meta-analysis on the LINE1 methylation pattern in spermatozoa found no significant differences in methylation levels between infertile patients and fertile controls. However, to the best of our knowledge, no updated meta-analysis on this topic has been published recently. Furthermore, no comprehensive meta-regression analysis was performed to investigate the association between sperm LINE1 methylation pattern and age. OBJECTIVES To provide an updated and comprehensive systematic review and meta-analysis on sperm LINE1 gene methylation degree in patients with abnormal sperm parameters compared to men with normal sperm parameters and to probe the association between sperm LINE1 methylation status and age and/or sperm concentration. METHODS This meta-analysis was registered in PROSPERO (registration n. CRD42023397056). It was performed according to the MOOSE guidelines for Meta-analyses and Systematic Reviews of Observational Studies and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols (PRISMA-P). Only original articles evaluating LINE1 gene methylation in spermatozoa from patients with infertility or abnormalities in one or more sperm parameters compared to fertile or normozoospermic men were included. RESULTS Of 192 abstracts evaluated for eligibility, only 5 studies were included in the quantitative synthesis, involving a total of 340 patients and 150 controls. Our analysis showed no significant difference in LINE1 gene methylation degree in patients with infertility and/or abnormal sperm parameters compared to fertile controls and/or men with normal sperm parameters, although there was significant heterogeneity across studies. No significant evidence of publication bias was found, and no study was sensitive enough to alter the results. In meta-regression analysis, we found that the results were independent of both ages and sperm concentration. A sub-analysis examining patients and controls separately was also conducted and we found a trend for a positive correlation between LINE1 methylation and sperm concentration in the control group only. CONCLUSIONS The results of this systematic review and meta-analysis do not suggest a determining role of sperm LINE1 gene methylation degree in patients with infertility and/or abnormal sperm parameters. Therefore, we do not suggest including LINE1 in the genetic panel of prospective studies aimed at identifying the most representative and cost-effective genes to be analyzed in couples undergoing ART cycles.
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Affiliation(s)
- Andrea Crafa
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Claudia Leanza
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Rosita A Condorelli
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Aldo E Calogero
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy.
- Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.
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Schaub AM, Gonzalez TL, Dorfman AE, Novoa AG, Hussaini RA, Harakuni PM, Khan MH, Shabani BJ, Swarna A, Wang ET, Chan JL, Williams J, Pisarska MD. A systematic review of genome-wide analyses of methylation changes associated with assisted reproductive technologies in various tissues. Fertil Steril 2024; 121:80-94. [PMID: 37827482 DOI: 10.1016/j.fertnstert.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/29/2023] [Accepted: 10/01/2023] [Indexed: 10/14/2023]
Abstract
IMPORTANCE Because analytic technologies improve, increasing amounts of data on methylation differences between assisted reproductive technology (ART) and unassisted conceptions are available. However, various studies use different tissue types and different populations in their analyses, making data comparison and integration difficult. OBJECTIVE To compare and integrate data on genome-wide analyses of methylation differences due to ART, allowing exposure of overarching themes. EVIDENCE REVIEW All studies undertaking genome-wide analysis of human methylation differences due to ART or infertility in any tissue type across the lifespan were assessed for inclusion. FINDINGS Seventeen studies were identified that met the inclusion criteria. One study assessed trophectoderm biopsies, 2 first-trimester placenta, 1 first-trimester fetal tissue, 2 term placenta, 7 cord blood, 3 newborn dried blood spots, 1 childhood buccal smears, 1 childhood peripheral blood, and 2 adult peripheral blood. Eleven studies compared tissues from in vitro fertilization (IVF) conceptions with those of unassisted conceptions, 4 compared intracytoplasmic sperm injection with unassisted conceptions, 4 compared non-IVF fertility treatment (NIFT) with unassisted conceptions, 4 compared NIFT with IVF, and 5 compared an infertile population (conceiving via various methods) with an unassisted presumably fertile population. In studies assessing placental tissue, 1 gene with potential methylation changes due to IVF when compared with unassisted conceptions was identified by 2 studies. In blood, 11 potential genes with methylation changes due to IVF compared with unassisted conceptions were identified by 2 studies, 1 of which was identified by 3 studies. Three potentially affected genes were identified by 2 studies involving blood between intracytoplasmic sperm injection and unassisted populations. There were no overlapping genes identified in any tissue type between NIFT and unassisted populations, between NIFT and IVF, or the infertility combined population when compared with the unassisted fertile population. CONCLUSIONS Comparing studies is challenging due to differing variables between analyses. However, even in similar tissue types and populations, overlapping methylation changes are limited, suggesting that differences due to ART are minimal. RELEVANCE Information from this systematic review is significant for providers and patients who provide and use ART to understand methylation risks that may be associated with the technology.
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Affiliation(s)
- Amelia M Schaub
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Tania L Gonzalez
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Anna E Dorfman
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Allynson G Novoa
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Rimsha A Hussaini
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Paige M Harakuni
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Mayaal H Khan
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Brandon J Shabani
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Akhila Swarna
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Erica T Wang
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - Jessica L Chan
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California
| | - John Williams
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California; David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Margareta D Pisarska
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Cedars Sinai Medical Center, Los Angeles, California; David Geffen School of Medicine at UCLA, Los Angeles, California.
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10
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Shormanova M, Makhmutov A, Shormanova A, Muslimova Z, Ussenbekov Y. Development of alternative diagnosis of HH1, HH3, HH5 and HCD fertility haplotypes and subfertility syndrome in cattle. Reprod Domest Anim 2024; 59:e14533. [PMID: 38268216 DOI: 10.1111/rda.14533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/13/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024]
Abstract
The increasing prevalence of hereditary anomalies in Holstein cattle populations presents a pressing issue, leading to concerns such as embryonic mortality and the birth of non-viable offspring. This study addresses the urgency of managing harmful genetic mutations in Holstein cattle by developing alternative diagnostic methods. The research aims to devise effective means to diagnose fertility haplotypes HH1, HH3, HH5, HCD and BY and subfertility syndrome in cattle. To achieve this goal, a range of molecular genetic techniques were employed, including Tetra-Primer ARMS-PCR methods, PCR-RFLP analysis and allele-specific PCR. These methods facilitated the identification of heterozygous carriers of various fertility haplotypes and subfertility syndrome in Holstein cows and servicing bulls. The study reveals the prevalence of these genetic defects within the Republic of Kazakhstan's cattle population. HH1, HH3, HH5, HCD and BY fertility haplotypes were found to have occurrence rates ranging from 1.4% to 16.6%, with subfertility syndrome detected in 4.5% of Simmental bulls. The practical significance of this research lies in its contribution to genetic monitoring and management strategies for Holstein cattle populations. By introducing affordable, rapid and accurate diagnostic methods, such as the T-ARMS-PCR, the study provides a valuable tool for controlling and mitigating the spread of harmful genetic mutations, ultimately improving the overall genetic health and productivity of Holstein cattle in the region. This research addresses a critical need in the cattle breeding industry and underscores the importance of genetic monitoring to ensure the long-term viability and sustainability of Holstein cattle populations.
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Affiliation(s)
- Marzhan Shormanova
- Department of Obstetrics, Surgery and Biotechnology of Animal Reproduction, Kazakh National Agrarian Research University, Almaty, Republic of Kazakhstan
| | - Abzal Makhmutov
- Department of Obstetrics, Surgery and Biotechnology of Animal Reproduction, Kazakh National Agrarian Research University, Almaty, Republic of Kazakhstan
| | - Aizhamal Shormanova
- Institute of Botany and Phytointroduction, Kazakh National Agrarian Research University, Almaty, Republic of Kazakhstan
| | - Zhadyra Muslimova
- Department of Obstetrics, Surgery and Biotechnology of Animal Reproduction, Kazakh National Agrarian Research University, Almaty, Republic of Kazakhstan
| | - Yessengali Ussenbekov
- Department of Obstetrics, Surgery and Biotechnology of Animal Reproduction, Kazakh National Agrarian Research University, Almaty, Republic of Kazakhstan
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11
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An X, Zhang S, Jiang Y, Liu X, Fang C, Wang J, Zhao L, Hou Q, Zhang J, Wan X. CRISPR/Cas9-based genome editing of 14 lipid metabolic genes reveals a sporopollenin metabolon ZmPKSB-ZmTKPR1-1/-2 required for pollen exine formation in maize. Plant Biotechnol J 2024; 22:216-232. [PMID: 37792967 PMCID: PMC10754010 DOI: 10.1111/pbi.14181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/20/2023] [Accepted: 09/12/2023] [Indexed: 10/06/2023]
Abstract
Lipid biosynthesis and transport are essential for plant male reproduction. Compared with Arabidopsis and rice, relatively fewer maize lipid metabolic genic male-sterility (GMS) genes have been identified, and the sporopollenin metabolon in maize anther remains unknown. Here, we identified two maize GMS genes, ZmTKPR1-1 and ZmTKPR1-2, by CRISPR/Cas9 mutagenesis of 14 lipid metabolic genes with anther stage-specific expression patterns. Among them, tkpr1-1/-2 double mutants displayed complete male sterility with delayed tapetum degradation and abortive pollen. ZmTKPR1-1 and ZmTKPR1-2 encode tetraketide α-pyrone reductases and have catalytic activities in reducing tetraketide α-pyrone produced by ZmPKSB (polyketide synthase B). Several conserved catalytic sites (S128/130, Y164/166 and K168/170 in ZmTKPR1-1/-2) are essential for their enzymatic activities. Both ZmTKPR1-1 and ZmTKPR1-2 are directly activated by ZmMYB84, and their encoded proteins are localized in both the endoplasmic reticulum and nuclei. Based on protein structure prediction, molecular docking, site-directed mutagenesis and biochemical assays, the sporopollenin biosynthetic metabolon ZmPKSB-ZmTKPR1-1/-2 was identified to control pollen exine formation in maize anther. Although ZmTKPR1-1/-2 and ZmPKSB formed a protein complex, their mutants showed different, even opposite, defective phenotypes of anther cuticle and pollen exine. Our findings discover new maize GMS genes that can contribute to male-sterility line-assisted maize breeding and also provide new insights into the metabolon-regulated sporopollenin biosynthesis in maize anther.
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Affiliation(s)
- Xueli An
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Industry Research Institute of Biotechnology BreedingYili Normal UniversityYiningChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
- Beijing Engineering Laboratory of Main Crop Bio‐Tech Breeding, Beijing International Science and Technology Cooperation Base of Bio‐Tech BreedingBeijing Solidwill Sci‐Tech Co. Ltd.BeijingChina
| | - Shaowei Zhang
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
| | - Yilin Jiang
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
| | - Xinze Liu
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
| | - Chaowei Fang
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
| | - Jing Wang
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
| | - Lina Zhao
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
| | - Quancan Hou
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
| | - Juan Zhang
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Industry Research Institute of Biotechnology BreedingYili Normal UniversityYiningChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
| | - Xiangyuan Wan
- Research Institute of Biology and AgricultureUniversity of Science and Technology BeijingBeijingChina
- Industry Research Institute of Biotechnology BreedingYili Normal UniversityYiningChina
- Zhongzhi International Institute of Agricultural BiosciencesBeijingChina
- Beijing Engineering Laboratory of Main Crop Bio‐Tech Breeding, Beijing International Science and Technology Cooperation Base of Bio‐Tech BreedingBeijing Solidwill Sci‐Tech Co. Ltd.BeijingChina
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12
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Verpoest W, Okutman Ö, Van Der Kelen A, Sermon K, Viville S. Genetics of infertility: a paradigm shift for medically assisted reproduction. Hum Reprod 2023; 38:2289-2295. [PMID: 37801292 DOI: 10.1093/humrep/dead199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/12/2023] [Indexed: 10/07/2023] Open
Abstract
The field of reproductive genetics has undergone significant advancements with the completion of the Human Genome Project and the development of high-throughput sequencing techniques. This has led to the identification of numerous genes involved in both male and female infertility, revolutionizing the diagnosis and management of infertility patients. Genetic investigations, including karyotyping, specific genetic tests, and high-throughput sequencing, have become essential in determining the genetic causes of infertility. Moreover, the integration of genetics into reproductive medicine has expanded the scope of care to include not only affected individuals or couples but also their family members. Genetic consultations and counselling play a crucial role in identifying potentially affected relatives and offering tailored therapy and the possibility of fertility preservation. Despite the current limited therapeutic options, an increasing understanding of genotype-phenotype correlations in infertility genes holds promise for improved treatment outcomes. The availability of genetic diagnostic tools has reduced the number of idiopathic infertility cases by providing accurate aetiological diagnoses. The transition from research to clinical practice in reproductive genetics requires the establishment of genetic consultations and data warehousing systems to provide up-to-date information on gene-disease relationships. Overall, the integration of genetics into reproductive medicine has brought about a paradigm shift, emphasizing the familial dimension of infertility and offering new possibilities for personalized care and family planning.
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Affiliation(s)
- Willem Verpoest
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Clinical Sciences, Research Group Genetics of Reproduction and Development, Brussels IVF Centre for Reproductive Medicine, Brussels, Belgium
| | - Özlem Okutman
- Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (H.U.B), Hôpital Erasme, Service de Gynécologie-Obstetrique, Clinique de Fertilité, Route de Lennik, Bruxelles, Belgium
| | - Annelore Van Der Kelen
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Clinical Sciences, Research Group Genetics of Reproduction and Development, Centre for Medical Genetics, Brussels, Belgium
| | - Karen Sermon
- Vrije Universiteit Brussel (VUB), Faculty of Medicine and Pharmacy, Research Group Genetics of Reproduction and Development, Brussels, Belgium
| | - Stéphane Viville
- Laboratoire de Génétique Médicale LGM, Institut de Génétique Médicale d'Alsace IGMA, INSERM UMR 1112, Université de Strasbourg, Strasbourg, France
- Laboratoire de Diagnostic Génétique, Unité de Génétique de l'infertilité (UF3472), Hôpitaux Universitaires de Strasbourg, Strasbourg, France
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13
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Ding Y, He Z, Sha Y, Kee K, Li L. Eif4enif1 haploinsufficiency disrupts oocyte mitochondrial dynamics and leads to subfertility. Development 2023; 150:dev202151. [PMID: 38088064 DOI: 10.1242/dev.202151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 11/01/2023] [Indexed: 12/18/2023]
Abstract
Infertility affects couples worldwide. Premature ovarian insufficiency (POI) refers to loss of ovarian function before 40 years of age and is a contributing factor to infertility. Several case studies have reported dominant-inherited POI symptoms in families with heterozygous EIF4ENIF1 (4E-T) mutations. However, the effects of EIF4ENIF1 haploinsufficiency have rarely been studied in animal models to reveal the underlying molecular changes related to infertility. Here, we demonstrate that Eif4enif1 haploinsufficiency causes mouse subfertility, impairs oocyte maturation and partially arrests early embryonic development. Using dual-omic sequencing, we observed that Eif4enif1 haploinsufficiency significantly altered both transcriptome and translatome in mouse oocytes, by which we further revealed oocyte mitochondrial hyperfusion and mitochondria-associated ribonucleoprotein domain distribution alteration in Eif4enif1-deficient oocytes. This study provides new insights into the molecular mechanisms underlying clinical fertility failure and new avenues to pursue new therapeutic targets to address infertility.
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Affiliation(s)
- Yuxi Ding
- The State Key Laboratory for Complex, Severe, and Rare Diseases; SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Zequn He
- School of Life Sciences, Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yanwei Sha
- Department of Andrology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Kehkooi Kee
- The State Key Laboratory for Complex, Severe, and Rare Diseases; SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Lin Li
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100006, China
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14
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Shacfe G, Turko R, Syed HH, Masoud I, Tahmaz Y, Samhan LM, Alkattan K, Shafqat A, Yaqinuddin A. A DNA Methylation Perspective on Infertility. Genes (Basel) 2023; 14:2132. [PMID: 38136954 PMCID: PMC10743303 DOI: 10.3390/genes14122132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/24/2023] [Accepted: 11/25/2023] [Indexed: 12/24/2023] Open
Abstract
Infertility affects a significant number of couples worldwide and its incidence is increasing. While assisted reproductive technologies (ART) have revolutionized the treatment landscape of infertility, a significant number of couples present with an idiopathic cause for their infertility, hindering effective management. Profiling the genome and transcriptome of infertile men and women has revealed abnormal gene expression. Epigenetic modifications, which comprise dynamic processes that can transduce environmental signals into gene expression changes, may explain these findings. Indeed, aberrant DNA methylation has been widely characterized as a cause of abnormal sperm and oocyte gene expression with potentially deleterious consequences on fertilization and pregnancy outcomes. This review aims to provide a concise overview of male and female infertility through the lens of DNA methylation alterations.
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Affiliation(s)
- Ghaleb Shacfe
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Rasoul Turko
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Haadi Hammad Syed
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Ibraheem Masoud
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Yahya Tahmaz
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Lara M Samhan
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Khaled Alkattan
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Areez Shafqat
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Ahmed Yaqinuddin
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
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15
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Alhalabi MM, Kakaje A, Alhalabi M. Hereditary chromosomal 9 inversion (p22q13) 9 as a cause for recurrent pregnancy loss: a case report. J Med Case Rep 2023; 17:427. [PMID: 37828559 PMCID: PMC10571383 DOI: 10.1186/s13256-023-04137-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/20/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Chromosomal aberrations are as common as 13.8% in the infertile population. The incidence of pericentric inversion of chromosome 9 is approximately 1-3%. However, although these inversions do not alternate phenotype, there have been conflicting data about their effect as they were correlated with infertility, recurrent pregnancy loss, and deceased children, with no clear evidence of the inversions being the causative factor for these events. CASE PRESENTATION We report a case report of an Arab family with many members with inv(9)(p22q13). Our proband male aged 35 years at time of presentation with primary infertility. Some members, such as a brother aged 34 years, who had this inversion suffered from recurrent pregnancy loss while other members of similar reproductive age did not. CONCLUSIONS inv(9)(p22q13) might be a hereditary anomaly that might be a risk factor for recurrent pregnancy loss in its members.
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Affiliation(s)
| | - Ameer Kakaje
- University of Damascus Faculty of Medicine, Damascus, Syria
| | - Marwan Alhalabi
- Department of Reproductive Medicine, Genetics and Embryology, Damascus University, Damascus, Syria
- BioTherapeutics Research Center, Damascus University, Damascus, Syria
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16
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Lee IT, Kappy M, Forman EJ, Dokras A. Genetics in reproductive endocrinology and infertility. Fertil Steril 2023; 120:521-527. [PMID: 36849035 DOI: 10.1016/j.fertnstert.2023.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 02/27/2023]
Abstract
Tremendous advances in genetics have transformed the field of reproductive endocrinology and infertility over the last few decades. One of the most prominent advances is preimplantation genetic testing (PGT), which allows for the screening of embryos obtained during in vitro fertilization before transfer. Moreover, PGT can be performed for aneuploidy screening, detection of monogenic disorders, or exclusion of structural rearrangements. Refinement of biopsy techniques, such as obtaining samples at the blastocyst rather than the cleavage stage, has helped optimize results from PGT, and technological advances, including next-generation sequencing, have made PGT more efficient and accurate. The continued evolution of the approach to PGT has the potential to further enhance the accuracy of results, expand the application to other conditions, and increase access by reducing cost and improving efficiency.
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Affiliation(s)
- Iris T Lee
- Division of Reproductive Endorcinology and Infertility, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Michelle Kappy
- Columbia University Fertility Center, New York, New York
| | - Eric J Forman
- Columbia University Fertility Center, New York, New York
| | - Anuja Dokras
- Division of Reproductive Endorcinology and Infertility, University of Pennsylvania, Philadelphia, Pennsylvania
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17
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Adams IR, Davies OR. Meiotic Chromosome Structure, the Synaptonemal Complex, and Infertility. Annu Rev Genomics Hum Genet 2023; 24:35-61. [PMID: 37159901 DOI: 10.1146/annurev-genom-110122-090239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In meiosis, homologous chromosome synapsis is mediated by a supramolecular protein structure, the synaptonemal complex (SC), that assembles between homologous chromosome axes. The mammalian SC comprises at least eight largely coiled-coil proteins that interact and self-assemble to generate a long, zipper-like structure that holds homologous chromosomes in close proximity and promotes the formation of genetic crossovers and accurate meiotic chromosome segregation. In recent years, numerous mutations in human SC genes have been associated with different types of male and female infertility. Here, we integrate structural information on the human SC with mouse and human genetics to describe the molecular mechanisms by which SC mutations can result in human infertility. We outline certain themes in which different SC proteins are susceptible to different types of disease mutation and how genetic variants with seemingly minor effects on SC proteins may act as dominant-negative mutations in which the heterozygous state is pathogenic.
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Affiliation(s)
- Ian R Adams
- Medical Research Council (MRC) Human Genetics Unit, MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom;
| | - Owen R Davies
- Wellcome Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, United Kingdom;
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18
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Shil K, Ferdousi T, Haq T, Hasanat MA. Sex Reversal Syndrome (SRS): A Case of SRY-Positive 46,XX Testicular Disorder. J ASEAN Fed Endocr Soc 2023; 38:141-144. [PMID: 38045677 PMCID: PMC10692437 DOI: 10.15605/jafes.038.02.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/04/2023] [Indexed: 12/05/2023] Open
Abstract
We report a case of an SRY-positive 46,XX Indian male who presented with small testis and phallus, poor beard and mustache development and gynecomastia at the age of 24 years. He was biochemically found to have hypergonadotropic hypogonadism. He had 46,XX karyotype and Quantitative Fluorescence-PCR (QF-PCR) identified the SRY gene on the X chromosome. SRY-positive 46 XX male SRS cases usually present as phenotypically male since birth but develop features of hypogonadism, poor testicular development, and infertility after puberty. Infertility, hypogonadism, external genital development, and psychological distress are the major concerns during the management of the patients. Testosterone therapy for hypogonadism, artificial reproductive technologies for fertility, surgical repair of hypospadias/ cryptorchidism/under-virilized genitalia and psychological and genetic counseling are helpful for proper management of the patients.
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Affiliation(s)
- Kishore Shil
- Department of Endocrinology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Tahmina Ferdousi
- Department of Endocrinology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Tahniyah Haq
- Department of Endocrinology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - M A Hasanat
- Department of Endocrinology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
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Neuhausser WM, Fouks Y, Lee SW, Macharia A, Hyun I, Adashi EY, Penzias AS, Hacker MR, Sakkas D, Vaughan D. Acceptance of genetic editing and of whole genome sequencing of human embryos by patients with infertility before and after the onset of the COVID-19 pandemic. Reprod Biomed Online 2023; 47:157-163. [PMID: 37127437 PMCID: PMC10330010 DOI: 10.1016/j.rbmo.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 02/23/2023] [Accepted: 03/17/2023] [Indexed: 05/03/2023]
Abstract
RESEARCH QUESTION Has acceptance of heritable genome editing (HGE) and whole genome sequencing for preimplantation genetic testing (PGT-WGS) of human embryos changed after the onset of COVID-19 among infertility patients? DESIGN A written survey conducted between April and June 2018 and July and December 2021 among patients at a university-affiliated infertility practice. The questionnaire ascertained the acceptance of HGE for specific therapeutic or genetic 'enhancement' indications and of PGT-WGS to prevent adult disease. RESULTS In 2021 and 2018, 172 patients and 469 patients (response rates: 90% and 91%, respectively) completed the questionnaire. In 2021, significantly more participants reported a positive attitude towards HGE, for therapeutic and enhancement indications. In 2021 compared with 2018, respondents were more likely to use HGE to have healthy children with their own gametes (85% versus 77%), to reduce disease risk for adult-onset polygenic disorders (78% versus 67%), to increase life expectancy (55% versus 40%), intelligence (34% versus 26%) and creativity (33% versus 24%). Fifteen per cent of the 2021 group reported a more positive attitude towards HGE because of COVID-19 and less than 1% a more negative attitude. In contrast, support for PGT-WGS was similar in 2021 and 2018. CONCLUSIONS A significantly increased acceptance of HGE was observed, but not of PGT-WGS, after the onset of COVID-19. Although the pandemic may have contributed to this change, the exact reasons remain unknown and warrant further investigation. Whether increased acceptability of HGE may indicate an increase in acceptability of emerging biomedical technologies in general needs further investigation.
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Affiliation(s)
- Werner M Neuhausser
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Kirstein 3, Boston, MA 02215, USA; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA.
| | - Yuval Fouks
- Boston IVF-Eugin Group, 130 2nd Ave, Waltham MA 02451, USA
| | - Si Won Lee
- Boston IVF-Eugin Group, 130 2nd Ave, Waltham MA 02451, USA
| | - Annliz Macharia
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Kirstein 3, Boston, MA 02215, USA
| | - Insoo Hyun
- Center for Bioethics, Harvard Medical School, 641 Huntington Ave, Boston, MA 02115, USA
| | - Eli Y Adashi
- Department of Medical Science, Brown University School of Medicine, 222 Richmond Street Providence, RI 02903, USA
| | - Alan S Penzias
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Kirstein 3, Boston, MA 02215, USA; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA; Boston IVF-Eugin Group, 130 2nd Ave, Waltham MA 02451, USA
| | - Michele R Hacker
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Kirstein 3, Boston, MA 02215, USA; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA
| | - Denny Sakkas
- Boston IVF-Eugin Group, 130 2nd Ave, Waltham MA 02451, USA
| | - Denis Vaughan
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Kirstein 3, Boston, MA 02215, USA; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA; Boston IVF-Eugin Group, 130 2nd Ave, Waltham MA 02451, USA
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20
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Bendall EE, Mattingly KM, Moehring AJ, Linnen CR. A Test of Haldane's Rule in Neodiprion Sawflies and Implications for the Evolution of Postzygotic Isolation in Haplodiploids. Am Nat 2023; 202:40-54. [PMID: 37384768 DOI: 10.1086/724820] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2023]
Abstract
AbstractHaldane's rule-a pattern in which hybrid sterility or inviability is observed in the heterogametic sex of an interspecific cross-is one of the most widely obeyed rules in nature. Because inheritance patterns are similar for sex chromosomes and haplodiploid genomes, Haldane's rule may apply to haplodiploid taxa, predicting that haploid male hybrids will evolve sterility or inviability before diploid female hybrids. However, there are several genetic and evolutionary mechanisms that may reduce the tendency of haplodiploids to obey Haldane's rule. Currently, there are insufficient data from haplodiploids to determine how frequently they adhere to Haldane's rule. To help fill this gap, we crossed a pair of haplodiploid hymenopteran species (Neodiprion lecontei and Neodiprion pinetum) and evaluated the viability and fertility of female and male hybrids. Despite considerable divergence, we found no evidence of reduced fertility in hybrids of either sex, consistent with the hypothesis that hybrid sterility evolves slowly in haplodiploids. For viability, we found a pattern opposite to that of Haldane's rule: hybrid females, but not males, had reduced viability. This reduction was most pronounced in one direction of the cross, possibly due to a cytoplasmic-nuclear incompatibility. We also found evidence of extrinsic postzygotic isolation in hybrids of both sexes, raising the possibility that this form or reproductive isolation tends to emerge early in speciation in host-specialized insects. Our work emphasizes the need for more studies on reproductive isolation in haplodiploids, which are abundant in nature but underrepresented in the speciation literature.
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21
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Llano E, Pendás AM. Synaptonemal Complex in Human Biology and Disease. Cells 2023; 12:1718. [PMID: 37443752 PMCID: PMC10341275 DOI: 10.3390/cells12131718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 07/15/2023] Open
Abstract
The synaptonemal complex (SC) is a meiosis-specific multiprotein complex that forms between homologous chromosomes during prophase of meiosis I. Upon assembly, the SC mediates the synapses of the homologous chromosomes, leading to the formation of bivalents, and physically supports the formation of programmed double-strand breaks (DSBs) and their subsequent repair and maturation into crossovers (COs), which are essential for genome haploidization. Defects in the assembly of the SC or in the function of the associated meiotic recombination machinery can lead to meiotic arrest and human infertility. The majority of proteins and complexes involved in these processes are exclusively expressed during meiosis or harbor meiosis-specific subunits, although some have dual functions in somatic DNA repair and meiosis. Consistent with their functions, aberrant expression and malfunctioning of these genes have been associated with cancer development. In this review, we focus on the significance of the SC and their meiotic-associated proteins in human fertility, as well as how human genetic variants encoding for these proteins affect the meiotic process and contribute to infertility and cancer development.
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Affiliation(s)
- Elena Llano
- Departamento Fisiología y Farmacología, Universidad de Salamanca, 37007 Salamanca, Spain
- Molecular Mechanisms Program, Centro de Investigación del Cáncer, Instituto de Biologıía Molecular y Celular del Cáncer, CSIC-Universidad de Salamanca, 37007 Salamanca, Spain;
| | - Alberto M. Pendás
- Molecular Mechanisms Program, Centro de Investigación del Cáncer, Instituto de Biologıía Molecular y Celular del Cáncer, CSIC-Universidad de Salamanca, 37007 Salamanca, Spain;
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22
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Zhou P, Wang Z, Zhu X, Tang Y, Ye L, Yu H, Li Y, Zhang N, Liu T, Wang T, Wu Y, Cao D, Chen Y, Li X, Zhang Q, Xiao J, Yu S, Zhang Q, Mi J, Ouyang Y. A minimal genome design to maximally guarantee fertile inter-subspecific hybrid rice. Mol Plant 2023; 16:726-738. [PMID: 36843324 DOI: 10.1016/j.molp.2023.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/02/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Hybrid rice has made considerable contributions to achieve the ambitious goal of food security for the world's population. Hybrid rice from indica/xian and japonica/geng subspecies shows much higher heterosis and is thereby an important innovation in promoting rice production in the next decade. However, such inter-subspecific hybrid rice has long suffered from serious hybrid sterility, which is a major challenge that needs to be addressed. In this study, we performed a genome design strategy to produce fertile inter-subspecific hybrid by creation of wide compatibility varieties that are able to overcome hybrid sterility. Based on combined genetic analyses in two indica-japonica crosses, we determined that four hybrid sterility loci, S5, f5, pf12 and Sc, are the major QTLs controlling inter-subspecific hybrid sterility and thus the minimal targets that can be manipulated for breeding sub-specific hybrid rice. We then cloned the pf12 locus, one of the most effective loci for hybrid male sterility, by map-based cloning, and showed that artificial disruption of pf12A gene at this locus could successfully rescue hybrid fertility. We further dissected the genetic basis of wide compatibility using three pairwise crosses from a wide-compatibility variety Dular and representative indica and japonica varieties. On this basis, we constructed and assembled different combinations of naturally compatible alleles of four loci, S5, Sc, pf12, and f5, and found that the improved lines could fully recover pollen and embryo sac fertility in test-crossed F1s, thereby completely fulfilling the demands of inter-subspecific hybrid spikelet fertility in agricultural production. This breeding scheme would facilitate redesign of future inter-subspecific hybrid rice with a higher yield potential.
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Affiliation(s)
- Penghui Zhou
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhengji Wang
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Xingchen Zhu
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Yao Tang
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Liang Ye
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Huihui Yu
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Yating Li
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Ningke Zhang
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Ting Liu
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Tian Wang
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Yuying Wu
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Dengyun Cao
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Yuan Chen
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Xu Li
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Qinglu Zhang
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Jinghua Xiao
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Sibin Yu
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Qifa Zhang
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiaming Mi
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yidan Ouyang
- National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan), Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
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23
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Zhang W, Wu F. Effects of adverse fertility-related factors on mitochondrial DNA in the oocyte: a comprehensive review. Reprod Biol Endocrinol 2023; 21:27. [PMID: 36932444 PMCID: PMC10021953 DOI: 10.1186/s12958-023-01078-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/07/2023] [Indexed: 03/19/2023] Open
Abstract
The decline of oocyte quality has profound impacts on fertilization, implantation, embryonic development, and the genetic quality of future generations. One factor that is often ignored but is involved in the decline of oocyte quality is mitochondrial DNA (mtDNA) abnormalities. Abnormalities in mtDNA affect the energy production of mitochondria, the dynamic balance of the mitochondrial network, and the pathogenesis of mtDNA diseases in offspring. In this review, we have detailed the characteristics of mtDNA in oocytes and the maternal inheritance of mtDNA. Next, we summarized the mtDNA abnormalities in oocytes derived from aging, diabetes, obesity, and assisted reproductive technology (ART) in an attempt to further elucidate the possible mechanisms underlying the decline in oocyte health. Because multiple infertility factors are often involved when an individual is infertile, a comprehensive understanding of the individual effects of each infertility-related factor on mtDNA is necessary. Herein, we consider the influence of infertility-related factors on the mtDNA of the oocyte as a collective perspective for the first time, providing a supplementary angle and reference for multi-directional improvement strategies of oocyte quality in the future. In addition, we highlight the importance of studying ART-derived mitochondrial abnormalities during every ART procedure.
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Affiliation(s)
- Wenying Zhang
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Fuju Wu
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin, China.
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24
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Dougherty MP, Poch AM, Chorich LP, Hawkins ZA, Xu H, Roman RA, Liu H, Brakta S, Taylor HS, Knight J, Kim HG, Diamond MP, Layman LC. Unexplained Female Infertility Associated with Genetic Disease Variants. N Engl J Med 2023; 388:1055-1056. [PMID: 36920765 PMCID: PMC10134047 DOI: 10.1056/nejmc2211539] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
| | | | - Lynn P Chorich
- Medical College of Georgia at Augusta University, Augusta, GA
| | - Zoe A Hawkins
- Medical College of Georgia at Augusta University, Augusta, GA
| | - Hongyan Xu
- Medical College of Georgia at Augusta University, Augusta, GA
| | - Robert A Roman
- Medical College of Georgia at Augusta University, Augusta, GA
| | - Haitao Liu
- Medical College of Georgia at Augusta University, Augusta, GA
| | - Soumia Brakta
- Medical College of Georgia at Augusta University, Augusta, GA
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25
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Pecker LH, Oteng-Ntim E, Nero A, Lanzkron S, Christianson MS, Woolford T, Meacham LR, Mishkin AD. Expecting more: the case for incorporating fertility services into comprehensive sickle cell disease care. Lancet Haematol 2023; 10:e225-e234. [PMID: 36708736 DOI: 10.1016/s2352-3026(22)00353-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/19/2022] [Accepted: 10/25/2022] [Indexed: 01/27/2023]
Abstract
Assisted reproductive technologies (ART) are not yet systematically available to people with sickle cell disease or their parents. Fertility care for these groups requires addressing sickle cell disease-associated infertility risks, fertility preservation options, pregnancy possibilities and outcomes, and, when needed, infertility treatment. People with a chance of having a child with sickle cell disease can use in-vitro fertilisation with preimplantation genetic testing to conceive a child unaffected by sickle cell disease. Also, parents of children with sickle cell disease can use this technology to identify embryos to become potential future matched sibling donors for stem cell transplant. In the USA, disparities in fertility care for the sickle cell disease community are especially stark. Universal screening of newborn babies' identifies sickle cell disease and sickle cell trait, guidelines direct preconception genetic carrier screening, and standard-of-care fertility preserving options exist. However, potentially transformative treatments and cures for patients with sickle cell disease are not used due to iatrogenic infertility concerns. In diversely resourced care settings, obstacles to providing fertility care to people affected by sickle cell disease persist. In this Viewpoint, we contend that fertility care should be incorporated into the comprehensive care model for sickle cell disease, supporting alignment of treatment goals with reproductive life plans and delivering on the promise of individualised high-quality care for people with sickle cell disease and their families. We consider the obligation to provide fertility care in light of medical evidence, with acknowledgment of formidable obstacles to optimising care, and powerful historical and ethical considerations.
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Affiliation(s)
- Lydia H Pecker
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Eugene Oteng-Ntim
- Women's Health Academic Centre, King's College London, London, UK; Women's Services, Guy's and St Thomas' NHS Foundation Trust, London, UK; London School of Hygiene and Tropical Medicine, London, UK
| | - Alecia Nero
- Division of Hematology-Oncology, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX, USA
| | - Sophie Lanzkron
- Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mindy S Christianson
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Division of Reproductive Endocrinology & Infertility, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Teonna Woolford
- Sickle Cell Reproductive Health Education Directive, Washington, DC, USA
| | - Lillian R Meacham
- Aflac Cancer and Blood Disorders Center Children's Healthcare of Atlanta; Division of Hematology & Oncology, Department of Pediatrics Emory University, Atlanta, GA, USA
| | - Adrienne D Mishkin
- Blood and Marrow Transplantation and Cell Therapy Program, Division of Hematology & Oncology and Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, USA
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26
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Baltacı E, Kazancı F, Şahin Fİ. BRCA, infertility, and fertility preservation: a review for counseling. J Assist Reprod Genet 2023; 40:465-472. [PMID: 36695945 PMCID: PMC10033813 DOI: 10.1007/s10815-023-02725-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 01/10/2023] [Indexed: 01/26/2023] Open
Abstract
BRCA mutations as a triggering factor in breast cancer have been reported to result in fertility problems and oocyte aging in young patients with cancer diagnosis. These patients are concerned about fertility problems and family planning before undergoing treatment modalities that may result in infertility. In this review, we conducted analysis of the literature on the association between BRCA mutations and infertility, possible fertility preservation options, and their safety and tried to gather results from different disciplines and points of view on the matter. Our aim is to provide a general summary of recent studies to provide further insight on the matter for counseling BRCA mutation carriers on fertility preservation methods and their implications.
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Affiliation(s)
- Ege Baltacı
- Department of Medical Genetics, Başkent University Hospital, Ankara, Turkey
| | - Ferah Kazancı
- Department of Gynecology and Obstetrics, Nezip Fazıl City Hospital, Kahramanmaraş, Turkey
| | - Feride İffet Şahin
- Department of Medical Genetics, Başkent University Hospital, Ankara, Turkey
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27
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Garretson A, Dumont BL, Handel MA. Reproductive genomics of the mouse: implications for human fertility and infertility. Development 2023; 150:dev201313. [PMID: 36779988 PMCID: PMC10836652 DOI: 10.1242/dev.201313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Genetic analyses of mammalian gametogenesis and fertility have the potential to inform about two important and interrelated clinical areas: infertility and contraception. Here, we address the genetics and genomics underlying gamete formation, productivity and function in the context of reproductive success in mammalian systems, primarily mouse and human. Although much is known about the specific genes and proteins required for meiotic processes and sperm function, we know relatively little about other gametic determinants of overall fertility, such as regulation of gamete numbers, duration of gamete production, and gamete selection and function in fertilization. As fertility is not a binary trait, attention is now appropriately focused on the oligogenic, quantitative aspects of reproduction. Multiparent mouse populations, created by complex crossing strategies, exhibit genetic diversity similar to human populations and will be valuable resources for genetic discovery, helping to overcome current limitations to our knowledge of mammalian reproductive genetics. Finally, we discuss how what we know about the genomics of reproduction can ultimately be brought to the clinic, informing our concepts of human fertility and infertility, and improving assisted reproductive technologies.
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Affiliation(s)
- Alexis Garretson
- The Jackson Laboratory, Bar Harbor, ME 04609, USA
- Tufts University, Graduate School of Biomedical Sciences, 136 Harrison Ave, Boston, MA 02111, USA
| | - Beth L. Dumont
- The Jackson Laboratory, Bar Harbor, ME 04609, USA
- Tufts University, Graduate School of Biomedical Sciences, 136 Harrison Ave, Boston, MA 02111, USA
| | - Mary Ann Handel
- The Jackson Laboratory, Bar Harbor, ME 04609, USA
- Tufts University, Graduate School of Biomedical Sciences, 136 Harrison Ave, Boston, MA 02111, USA
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28
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Cheung S, Xie P, Rosenwaks Z, Palermo GD. Profiling the male germline genome to unravel its reproductive potential. Fertil Steril 2023; 119:196-206. [PMID: 36379263 PMCID: PMC9898105 DOI: 10.1016/j.fertnstert.2022.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/28/2022] [Accepted: 11/07/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To identify specific germline mutations related to sperm reproductive competence, in couples with unexplained infertility. DESIGN In this retrospective study, couples were divided according to whether they had successful intracytoplasmic sperm injection outcomes (fertile) or not (infertile). Ancillary sperm function tests were performed on ejaculates, and whole exome sequencing was performed on spermatozoal DNA. Sperm aneuploidy and gene mutation profiles were compared between the 2 cohorts as well as according to the specific reasons for reproductive failure. SETTING Center for reproductive medicine at a major academic medical center. PATIENT(S) Thirty-one couples with negative infertility workups and normal semen parameters. INTERVENTION(S) Couples with mutations on fertilization- or embryo development-related genes were subsequently treated by assisted gamete treatment or microfluidics, respectively. MAIN OUTCOME MEASURE(S) Intracytoplasmic sperm injection cycle outcomes including fertilization, clinical pregnancy, and delivery rates. RESULT(S) Sperm aneuploidy was lower in the fertile group (4.0% vs. 8.4%). Spermatozoa from both cohorts displayed mutations associated with sperm-egg fusion (ADAM3A) and acrosomal development (SPACA1), regardless of reproductive outcome. The infertile cohort was then categorized according to the reasons for reproductive failure: absent fertilization, poor early embryo development, implantation failure, or pregnancy loss. Spermatozoa from the fertilization failure subgroup (n = 4) had negligible PLCζ presence (10% ± 9%) and gene mutations (PLCZ1, PIWIL1, ADAM15) indicating a sperm-related oocyte-activating deficiency. These couples were successfully treated by assisted gamete treatment in their subsequent cycles. Spermatozoa from the poor early embryo development subgroup (n = 5) had abnormal centrosomes (45.9% ± 5%), and displayed mutations impacting centrosome integrity (HAUS1) and spindle/microtubular stabilization (KIF4A, XRN1). Microfluidic sperm processing subsequently yielded a term pregnancy. Spermatozoa from the implantation failure subgroup (n = 7) also had abnormal centrosomes (53.1% ± 13%) and carried mutations affecting embryonic implantation (IL9R) and microtubule and centrosomal integrity (MAP1S, SUPT5H, PLK4), whereas those from the pregnancy loss subgroup (n = 5) displayed mutations on genes involved in trophoblast development (NLRP7), cell cycle regulation (MARK4, TRIP13, DAB2IP, KIF1C), and recurrent miscarriage (TP53). CONCLUSION(S) By assessing the sperm genome, we identified specific germline mutations related to various reproductive processes. This information may clarify elusive factors underlying reproductive competence and enhance treatment for couples with unexplained infertility.
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Affiliation(s)
- Stephanie Cheung
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York
| | - Philip Xie
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York
| | - Zev Rosenwaks
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York
| | - Gianpiero D Palermo
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, New York.
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29
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Sciorio R, Tramontano L, Rapalini E, Bellaminutti S, Bulletti FM, D'Amato A, Manna C, Palagiano A, Bulletti C, Esteves SC. Risk of genetic and epigenetic alteration in children conceived following ART: Is it time to return to nature whenever possible? Clin Genet 2023; 103:133-145. [PMID: 36109352 DOI: 10.1111/cge.14232] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 01/07/2023]
Abstract
Assisted reproductive technology may influence epigenetic signature as the procedures coincide with the extensive epigenetic modification occurring from fertilization to embryo implantation. However, it is still unclear to what extent ART alters the embryo epigenome. In vivo fertilization occurs in the fallopian tube, where a specific and natural environment enables the embryo's healthy development. During this dynamic period, major waves of epigenetic reprogramming, crucial for the normal fate of the embryo, take place. Over the past decade, concerns relating to the raised incidence of epigenetic anomalies and imprinting following ART have been raised by several authors. Epigenetic reprogramming is particularly susceptible to environmental conditions during the periconceptional period; therefore, unphysiological conditions, including ovarian stimulation, in vitro fertilization, embryo culture, cryopreservation of gametes and embryos, parental lifestyle, and underlying infertility, have the potential to contribute to epigenetic dysregulation independently or collectively. This review critically appraises the evidence relating to the association between ART and genetic and epigenetic modifications that may be transmitted to the offspring.
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Affiliation(s)
- Romualdo Sciorio
- Edinburgh Assisted Conception Programme, EFREC, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Luca Tramontano
- Department of Women, Infants and Adolescents, Division of Obstetrics, Geneva University Hospitals, Geneva, Switzerland
| | - Erika Rapalini
- IVF Department, Versilia Hospital Lido di Camaiore, Lucca, Italy
| | - Serena Bellaminutti
- Department of Gynaecology and Obstetrics, Ospedale Regionale di Lugano, Lugano, Switzerland
- Gynecology and Fertility Unit, Procrea Institute, Lugano, Switzerland
- Gynecology Unit, Centro Medico, Lugano, Switzerland
| | | | - Antonio D'Amato
- Obstetrics and Gynaecology Clinic, University of Bari, Bari, Italy
| | - Claudio Manna
- Biofertility IVF and Infertility Center, Rome, Italy
| | - Antonio Palagiano
- CFA Napoli, Italy, CFA: Centro Fecondazione Assistita Napoli, Naples, Italy
| | - Carlo Bulletti
- Ostetricia e Ginecologia, EXTRA OMNES Medicina e Salute Riproduttiva, Cattolica, Italy
| | - Sandro C Esteves
- Andrology and Human Reproduction Clinic, Campinas, Brazil
- Department of Surgery (Division of Urology), University of Campinas (UNICAMP), Campinas, Brazil
- Faculty of Health, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Zhang X, Li J, Wang X, Jie Y, Sun C, Zheng J, Li J, Yang N, Chen S. ATAC-seq and RNA-seq analysis unravel the mechanism of sex differentiation and infertility in sex reversal chicken. Epigenetics Chromatin 2023; 16:2. [PMID: 36617567 PMCID: PMC9827654 DOI: 10.1186/s13072-022-00476-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 12/20/2022] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Sex determination and differentiation are complex and delicate processes. In female chickens, the process of sex differentiation is sensitive and prone to be affected by the administration of aromatase inhibitors, which result in chicken sex reversal and infertility. However, the molecular mechanisms underlying sex differentiation and infertility in chicken sex reversal remain unclear. Therefore, we established a sex-reversed chicken flock by injecting an aromatase inhibitor, fadrozole, and constructed relatively high-resolution profiles of the gene expression and chromatin accessibility of embryonic gonads. RESULTS We revealed that fadrozole affected the transcriptional activities of several genes, such as DMRT1, SOX9, FOXL2, and CYP19A1, related to sex determination and differentiation, and the expression of a set of gonadal development-related genes, such as FGFR3 and TOX3, by regulating nearby open chromatin regions in sex-reversed chicken embryos. After sexual maturity, the sex-reversed chickens were confirmed to be infertile, and the possible causes of this infertility were further investigated. We found that the structure of the gonads and sperm were greatly deformed, and we identified several promising genes related to spermatogenesis and infertility, such as SPEF2, DNAI1, and TACR3, through RNA-seq. CONCLUSIONS This study provides clear insights into the exploration of potential molecular basis underlying sex differentiation and infertility in sex-reversed chickens and lays a foundation for further research into the sex development of birds.
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Affiliation(s)
- Xiuan Zhang
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Jianbo Li
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Xiqiong Wang
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Yuchen Jie
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Congjiao Sun
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Jiangxia Zheng
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Junying Li
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Ning Yang
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Sirui Chen
- grid.22935.3f0000 0004 0530 8290National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
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Lama J, Srivastav S, Tasnim S, Hubbard D, Hadjipanteli S, Smith BR, Macdonald SJ, Green L, Kelleher ES. Genetic variation in P-element dysgenic sterility is associated with double-strand break repair and alternative splicing of TE transcripts. PLoS Genet 2022; 18:e1010080. [PMID: 36477699 PMCID: PMC9762592 DOI: 10.1371/journal.pgen.1010080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 12/19/2022] [Accepted: 11/02/2022] [Indexed: 12/12/2022] Open
Abstract
The germline mobilization of transposable elements (TEs) by small RNA mediated silencing pathways is conserved across eukaryotes and critical for ensuring the integrity of gamete genomes. However, genomes are recurrently invaded by novel TEs through horizontal transfer. These invading TEs are not targeted by host small RNAs, and their unregulated activity can cause DNA damage in germline cells and ultimately lead to sterility. Here we use hybrid dysgenesis-a sterility syndrome of Drosophila caused by transposition of invading P-element DNA transposons-to uncover host genetic variants that modulate dysgenic sterility. Using a panel of highly recombinant inbred lines of Drosophila melanogaster, we identified two linked quantitative trait loci (QTL) that determine the severity of dysgenic sterility in young and old females, respectively. We show that ovaries of fertile genotypes exhibit increased expression of splicing factors that suppress the production of transposase encoding transcripts, which likely reduces the transposition rate and associated DNA damage. We also show that fertile alleles are associated with decreased sensitivity to double-stranded breaks and enhanced DNA repair, explaining their ability to withstand high germline transposition rates. Together, our work reveals a diversity of mechanisms whereby host genotype modulates the cost of an invading TE, and points to genetic variants that were likely beneficial during the P-element invasion.
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Affiliation(s)
- Jyoti Lama
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, United States of America
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America
| | - Satyam Srivastav
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, United States of America
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America
| | - Sadia Tasnim
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, United States of America
| | - Donald Hubbard
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, United States of America
| | - Savana Hadjipanteli
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, United States of America
| | - Brittny R. Smith
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas, United States of America
| | - Stuart J. Macdonald
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas, United States of America
| | - Llewellyn Green
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, United States of America
| | - Erin S. Kelleher
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, United States of America
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Ting NS, Chen YH, Chen SF, Chen PC. Successful Live Twin Birth through IVF/ICSI from a Couple with an Infertile Father with Pericentric Inversion of Chromosome 9 (p12q13): A Case with a High Aneuploidy Rate. Medicina (Kaunas) 2022; 58:1646. [PMID: 36422185 PMCID: PMC9692304 DOI: 10.3390/medicina58111646] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/01/2022] [Accepted: 11/07/2022] [Indexed: 03/25/2024]
Abstract
Evidence suggests that the pericentric inversion of chromosome 9 (inv(9)) does not affect the aneuploidy rate (38.5%) after IVF. Herein, we report a successful live female twin birth through IVF/ICSI with a high aneuploidy rate from a couple within which the infertile father has inv(9)(p12q13). A couple (a 34-year-old male and a 35-year-old female) was referred to our clinic due to infertility. The wife has a child with her previous husband. Results from the infertility workup of both parents were normal. Karyotyping revealed that the inv(9)(p12q13) of the father was the only cytogenetic abnormality. Preimplantation genetic testing for aneuploidies (PGT-A) after IVF/ICSI revealed a high aneuploidy rate (77%; 10/13). Two euploid blastocysts were transferred, resulting in a successful live female twin birth. The presented case highlights the possibility that inv(9)(p12q13) in males may impact the fertility and euploidy rate. PGT-A facilitates the selection of qualified blastocysts for the optimization of live-birth outcomes.
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Affiliation(s)
- Ning-Shiuan Ting
- Department of Obstetrics and Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan
| | - Ying-Hsi Chen
- Department of Obstetrics and Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan
| | - Shih-Fen Chen
- Reproductive Health and IVF Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan
| | - Pao-Chu Chen
- Department of Obstetrics and Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan
- Reproductive Health and IVF Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan
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Sams KL, Mukai C, Marks BA, Mittal C, Demeter EA, Nelissen S, Grenier JK, Tate AE, Ahmed F, Coonrod SA. Delayed puberty, gonadotropin abnormalities and subfertility in male Padi2/Padi4 double knockout mice. Reprod Biol Endocrinol 2022; 20:150. [PMID: 36224627 PMCID: PMC9555066 DOI: 10.1186/s12958-022-01018-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/23/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Peptidylarginine deiminase enzymes (PADs) convert arginine residues to citrulline in a process called citrullination or deimination. Recently, two PADs, PAD2 and PAD4, have been linked to hormone signaling in vitro and the goal of this study was to test for links between PAD2/PAD4 and hormone signaling in vivo. METHODS Preliminary analysis of Padi2 and Padi4 single knockout (SKO) mice did not find any overt reproductive defects and we predicted that this was likely due to genetic compensation. To test this hypothesis, we created a Padi2/Padi4 double knockout (DKO) mouse model and tested these mice along with wild-type FVB/NJ (WT) and both strains of SKO mice for a range of reproductive defects. RESULTS Controlled breeding trials found that male DKO mice appeared to take longer to have their first litter than WT controls. This tendency was maintained when these mice were mated to either DKO or WT females. Additionally, unsexed 2-day old DKO pups and male DKO weanlings both weighed significantly less than their WT counterparts, took significantly longer than WT males to reach puberty, and had consistently lower serum testosterone levels. Furthermore, 90-day old adult DKO males had smaller testes than WT males with increased rates of germ cell apoptosis. CONCLUSIONS The Padi2/Padi4 DKO mouse model provides a new tool for investigating PAD function and outcomes from our studies provide the first in vivo evidence linking PADs with hormone signaling.
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Affiliation(s)
- Kelly L Sams
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Chinatsu Mukai
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Brooke A Marks
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Chitvan Mittal
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Elena Alina Demeter
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Sophie Nelissen
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Jennifer K Grenier
- Transcriptional Regulation and Expression Facility, Department of Biomedical Sciences, Cornell University, Ithaca, NY, USA
| | - Ann E Tate
- Transcriptional Regulation and Expression Facility, Department of Biomedical Sciences, Cornell University, Ithaca, NY, USA
| | - Faraz Ahmed
- Transcriptional Regulation and Expression Facility, Department of Biomedical Sciences, Cornell University, Ithaca, NY, USA
| | - Scott A Coonrod
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
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Ganieva U, Schneiderman S, Bu P, Beaman K, Dambaeva S. IL-22 regulates endometrial regeneration by enhancing tight junctions and orchestrating extracellular matrix. Front Immunol 2022; 13:955576. [PMID: 36091010 PMCID: PMC9453595 DOI: 10.3389/fimmu.2022.955576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/08/2022] [Indexed: 11/18/2022] Open
Abstract
The uterine endometrium uniquely regenerates after menses, postpartum, or after breaks in the uterine layer integrity throughout women’s lives. Direct cell–cell contacts ensured by tight and adherens junctions play an important role in endometrial integrity. Any changes in these junctions can alter the endometrial permeability of the uterus and have an impact on the regeneration of uterine layers. Interleukin 22 (IL-22) is a cytokine that is recognized for its role in epithelial regeneration. Moreover, it is crucial in controlling the inflammatory response in mucosal tissues. Here, we studied the role of IL-22 in endometrial recovery after inflammation-triggered abortion. Fecundity of mice was studied in consecutive matings of the same animals after lipopolysaccharide (LPS) (10 µg per mouse)-triggered abortion. The fecundity rate after the second mating was substantially different between IL-22 knockout (IL-22−/−) (9.1%) and wild-type (WT) (71.4%) mice (p < 0.05), while there was no difference between the groups in the initial mating, suggesting that IL-22 deficiency might be associated with secondary infertility. A considerable difference was observed between IL-22−/− and WT mice in the uterine clearance following LPS-triggered abortion. Gross examination of the uteri of IL-22−/− mice revealed non-viable fetuses retained inside the horns (delayed clearance). In contrast, all WT mice had completed abortion with total clearance after LPS exposure. We also discovered that IL-22 deficiency is associated with a decreased expression of tight junctions (claudin-2 and claudin-10) and cell surface pathogen protectors (mucin-1). Moreover, IL-22 has a role in the remodeling of the uterine tissue in the inflammatory environment by regulating epithelial–mesenchymal transition markers called E- and N-cadherin. Therefore, IL-22 contributes to the proper regeneration of endometrial layers after inflammation-triggered abortion. Thus, it might have a practical significance to be utilized as a treatment option postpartum (enhanced regeneration function) and in secondary infertility caused by inflammation (enhanced barrier/protector function).
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Affiliation(s)
- Umida Ganieva
- Center for Cancer Cell Biology, Immunology, and Infection, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Sylvia Schneiderman
- Clinical Immunology Laboratory, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Pengli Bu
- Department of Pharmaceutical Sciences, College of Pharmacy, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Kenneth Beaman
- Center for Cancer Cell Biology, Immunology, and Infection, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
- Clinical Immunology Laboratory, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Svetlana Dambaeva
- Center for Cancer Cell Biology, Immunology, and Infection, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
- Clinical Immunology Laboratory, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
- *Correspondence: Svetlana Dambaeva,
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Abstract
Endometriosis is defined as the presence of endometrial-like glands and stroma located outside the uterine cavity. This common, estrogen dependent, inflammatory condition affects up to 15% of reproductive-aged women and is a well-recognized cause of chronic pelvic pain and infertility. Despite the still unknown etiology of endometriosis, much evidence suggests the participation of epigenetic mechanisms in the disease etiopathogenesis. The main rationale is based on the fact that heritable phenotype changes that do not involve alterations in the DNA sequence are common triggers for hormonal, immunological, and inflammatory disorders, which play a key role in the formation of endometriotic foci. Epigenetic mechanisms regulating T-cell responses, including DNA methylation and posttranslational histone modifications, deserve attention because tissue-resident T lymphocytes work in concert with organ structural cells to generate appropriate immune responses and are functionally shaped by organ-specific environmental conditions. Thus, a failure to precisely regulate immune cell transcription may result in compromised immunological integrity of the organ with an increased risk of inflammatory disorders. The coexistence of endometriosis and autoimmunity is a well-known occurrence. Recent research results indicate regulatory T-cell (Treg) alterations in endometriosis, and an increased number of highly active Tregs and macrophages have been found in peritoneal fluid from women with endometriosis. Elimination of the regulatory function of T cells and an imbalance between T helper cells of the Th1 and Th2 types have been reported in the endometria of women with endometriosis-associated infertility. This review aims to present the state of the art in recognition epigenetic reprogramming of T cells as the key factor in the pathophysiology of endometriosis in the context of T-cell-related autoimmunity. The new potential therapeutic approaches based on epigenetic modulation and/or adoptive transfer of T cells will also be outlined.
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Hernáez Á, Wootton RE, Page CM, Skåra KH, Fraser A, Rogne T, Magnus P, Njølstad PR, Andreassen OA, Burgess S, Lawlor DA, Magnus MC. Smoking and infertility: multivariable regression and Mendelian randomization analyses in the Norwegian Mother, Father and Child Cohort Study. Fertil Steril 2022; 118:180-190. [PMID: 35562204 PMCID: PMC7612999 DOI: 10.1016/j.fertnstert.2022.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To investigate the association between smoking and infertility. DESIGN Prospective study. SETTING Nationwide cohort. PATIENTS 28,606 women and 27,096 men with questionnaire and genotype information from the Norwegian Mother, Father, and Child Cohort Study. INTERVENTION Self-reported information on smoking (having ever smoked [both sexes], age at initiation [women only], cessation [women only], and cigarettes/week in current smokers [both sexes]) was gathered. Genetically predetermined levels or likelihood of presenting these traits were estimated for Mendelian randomization. MAIN OUTCOME MEASURE Infertility (time-to-pregnancy ≥12 months). RESULTS Having ever smoked was unrelated to infertility in women or men. Higher smoking intensity in women was associated with greater infertility odds (+1 standard deviation [SD, 48 cigarettes/week]: odds ratio [OR]crude, 1.19; 95% confidence interval [CI] 1.11-1.28; ORadjusted 1.12; 95% CI, 1.03-1.21), also after adjusting for the partner's tobacco use. Later smoking initiation (+1 SD [3.2 years]: ORcrude, 0.94; 95% CI, 0.88-0.99; ORadjusted 0.89; 95% CI, 0.84-0.95) and smoking cessation (vs. not quitting: ORcrude, 0.83; 95% CI, 0.75-0.91; ORadjusted, 0.83; 95% CI, 0.75-0.93) were linked to decreased infertility in women. Nevertheless, Mendelian randomization results were not directionally consistent for smoking intensity and cessation and were estimated imprecisely in the 2-sample approach. In men, greater smoking intensity was not robustly associated with infertility in multivariable regression and Mendelian randomization. CONCLUSIONS We did not find robust evidence of an effect of smoking on infertility. This may be due to a true lack of effect, weak genetic instruments, or other kinds of confounding.
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Affiliation(s)
- Álvaro Hernáez
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway; Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain; Blanquerna School of Health Sciences, Universitat Ramon Llull, Barcelona, Spain.
| | - Robyn E Wootton
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, United Kingdom; Nic Waals Institute, Lovisenberg Diaconal Hospital, Oslo, Norway
| | - Christian M Page
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway; Department of Mathematics, University of Oslo, Oslo, Norway
| | - Karoline H Skåra
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Abigail Fraser
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, United Kingdom; Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom; The National Institute for Health Research Bristol Biomedical Research Centre, Bristol, United Kingdom
| | - Tormod Rogne
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway; Department of Chronic Disease Epidemiology, Yale University School of Public Health, New Haven, Connecticut; Department of Circulation and Medical Imaging, Gemini Center for Sepsis Research, NTNU Norwegian University of Science and Technology, Trondheim, Norway
| | - Per Magnus
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Pål R Njølstad
- Department of Clinical Science, Center for Diabetes Research, University of Bergen, Bergen, Norway; Children and Adolescent Clinic, Haukeland University Hospital, Bergen, Norway
| | - Ole A Andreassen
- Division of Mental Health and Addiction, Norwegian Centre for Mental Disorders Research, NORMENT, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Stephen Burgess
- Medical Research Council, Biostatistics Unit, University of Cambridge, Cambridge, United Kingdom; Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Deborah A Lawlor
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, United Kingdom; Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom; The National Institute for Health Research Bristol Biomedical Research Centre, Bristol, United Kingdom
| | - Maria Christine Magnus
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway; MRC Integrative Epidemiology Unit, University of Bristol, Bristol, United Kingdom; Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
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Sanetomo R, Akai K, Nashiki A. Discovery of a novel mitochondrial DNA molecule associated with tetrad pollen sterility in potato. BMC Plant Biol 2022; 22:302. [PMID: 35725378 PMCID: PMC9210639 DOI: 10.1186/s12870-022-03669-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 05/31/2022] [Indexed: 06/01/2023]
Abstract
BACKGROUND Tetrad sterility in potato is caused by a specific cytoplasm, called TSCsto, derived from the Mexican wild tetraploid species Solanum stoloniferum. Different S. stoloniferum accessions crossed as females with S. tuberosum resulted in 12 fertile hybrids and 27 sterile hybrids exhibiting tetrad sterility. RESULTS Whole-mitochondrial-genome sequencing was performed for two fertile hybrids and three hybrids exhibiting tetrad sterility. Two to seven contigs, with the total assembly lengths ranging from 462,716 to 535,375 bp, were assembled for each hybrid. Unlike for the reference mitochondrial genome (cv. Désirée), two different recombinant-type contigs (RC-I and RC-II) were identified. RC-I featured by the rpl5-ψrps14 gene joined to the nad6 gene, generating a novel intergenic region. Using a PCR marker (P-3), we found that this intergenic region occurred exclusively in interspecific hybrids exhibiting tetrad sterility and in their parental S. stoloniferum accessions. A part of this intergenic sequence was expressed in the pollen. From a large survey in which P-3 was applied to 129 accessions of 27 mostly Mexican wild species, RC-I was found in diploid S. verrucosum and polyploid species. From eight accessions of S. verrucosum used as females, 92 interspecific hybrids were generated, in which only those carrying RC-I exhibited tetrad sterility. CONCLUSIONS RC-I was clearly associated with tetrad sterility, and the RC-I-specific intergenic region likely contains a causal factor of tetrad sterility.
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Affiliation(s)
- Rena Sanetomo
- Potato Germplasm Enhancement Laboratory, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, 080-8555, Japan.
| | - Kotaro Akai
- National Agriculture and Food Research Organization, Hokkaido Agricultural Research Center, Memuro, Hokkaido, 082-0081, Japan
| | - Akito Nashiki
- Potato Germplasm Enhancement Laboratory, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, 080-8555, Japan
- Graduate School of Science and Technology, The University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan
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Yamauchi Y, Matsumura T, Bakse J, Holmlund H, Blanchet G, Carrot E, Ikawa M, Ward MA. Loss of mouse Y chromosome gene Zfy1 and Zfy2 leads to spermatogenesis impairment, sperm defects, and infertility. Biol Reprod 2022; 106:1312-1326. [PMID: 35293998 PMCID: PMC9199016 DOI: 10.1093/biolre/ioac057] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/17/2022] [Accepted: 03/11/2022] [Indexed: 11/14/2022] Open
Abstract
Using mice with Y chromosome deficiencies and supplementing Zfy transgenes, we, and others, have previously shown that the loss of Y chromosome Zfy1 and Zfy2 genes is associated with infertility and spermiogenic defects and that the addition of Zfy transgenes rescues these defects. In these past studies, the absence of Zfy was linked to the loss of other Y chromosome genes, which might have contributed to spermiogenic phenotypes. Here, we used CRISPR/Cas9 to specifically remove open reading frame of Zfy1, Zfy2, or both Zfy1 and Zfy2, and generated Zfy knockout (KO) and double knockout (DKO) mice. Zfy1 KO and Zfy2 KO mice were both fertile, but the latter had decreased litters size and sperm number, and sperm headshape abnormalities. Zfy DKO males were infertile and displayed severe spermatogenesis defects. Postmeiotic arrest largely prevented production of sperm and the few sperm that were produced all displayed gross headshape abnormalities and structural defects within head and tail. Infertility of Zfy DKO mice could be overcome by injection of spermatids or sperm directly to oocytes, and the resulting male offspring had the same spermiogenic phenotype as their fathers. The study is the first describing detailed phenotypic characterization of mice with the complete Zfy gene loss. It provides evidence supporting that the presence of at least one Zfy homolog is essential for male fertility and development of normal sperm functional in unassisted fertilization. The data also show that while the loss of Zfy1 is benign, the loss of Zfy2 is mildly detrimental for spermatogenesis.
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Affiliation(s)
- Yasuhiro Yamauchi
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Takafumi Matsumura
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Jackson Bakse
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Hayden Holmlund
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Genevieve Blanchet
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Emmaelle Carrot
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Masahito Ikawa
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Monika A Ward
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
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Morris JR, Plowden TC, Green LJ, Edwards DRV, Jackson-Bey T. Racial and Ethnic Variation in Genetic Susceptibility: Are Disparities in Infertility Prevalence and Outcomes more than Black and White? Reprod Sci 2022; 29:2081-2083. [PMID: 35482220 PMCID: PMC9287248 DOI: 10.1007/s43032-022-00956-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/19/2022] [Indexed: 11/27/2022]
Abstract
Race, as a social construct without a clear genetic underpinning, is frequently referenced in medicine as predictor of multiple diseases including that of infertility. The authors will discuss how systematic racism can have downstream consequences ranging from overt physician bias to use of medical algorithms that may potentiate the same disparities they attempt to narrow. Then, the authors explore the utility and pragmatic use of genetic ancestry to estimate disease prevalence, instead of racial categories. Finally, the authors explore how health inequities, rooted in systematic racism, can influence disease heritability effectively advocating for research to disentangle the contributions of racism to genetic susceptibility in infertility.
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Affiliation(s)
- Jerrine R Morris
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, 499 Illinois Street, San Francisco, CA, 94158, USA.
| | - Torie Comeaux Plowden
- Department of Obstetrics and Gynecology, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Lisa J Green
- Department of Obstetrics and Gynecology, School of Medicine, University of South Carolina, Greenville, SC, USA
- Fertility Center of the Carolinas-Greenville, Greenville, SC, USA
| | - Digna R Velez Edwards
- Division of Quantitative Sciences, Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Tia Jackson-Bey
- Reproductive Medicine Associates of New York, New York, NY, USA
- Department of Obstetrics and Gynecology and Reproductive Science, Division of Reproductive Endocrinology and Infertility, Mount Sinai School of Medicine, New York, NY, USA
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40
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Tsakoumis E, Ahi EP, Schmitz M. Impaired leptin signaling causes subfertility in female zebrafish. Mol Cell Endocrinol 2022; 546:111595. [PMID: 35139421 DOI: 10.1016/j.mce.2022.111595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 01/21/2022] [Accepted: 02/04/2022] [Indexed: 10/19/2022]
Abstract
Reproduction is an energetically costly event across vertebrates and tightly linked to nutritional status and energy reserves. In mammals, the hormone leptin is considered as a link between energy homeostasis and reproduction. However, its role in fish reproduction is still unclear. In this study, we investigated the possible role of leptin in the regulation of reproduction in zebrafish, using a loss of function leptin receptor (lepr) strain. Impaired leptin signaling resulted in severe reproductive deficiencies in female zebrafish. lepr mutant females laid significantly fewer eggs, with low fertilization rates compared to wild-type females. Folliculogenesis was not affected, but oocyte maturation and ovulation were disrupted in lepr mutants. Interestingly, the expression of luteinizing hormone beta (lhb) in the pituitary was significantly lower in mutant females. Analysis of candidate genes in the ovaries and isolated fully grown follicles revealed differential expression of genes involved in steroidogenesis, oocyte maturation and ovulation in the mutants, which are known to be regulated by LH signaling. Moreover, subfertility in lepr mutants could be partially restored by administration of human chorionic gonadotropin. In conclusion, our results show that leptin deficiency does not affect early stages of follicular development, but leptin might be essential in later steps, such as in oocyte maturation and ovulation. To our knowledge, this is the first time that leptin is associated to reproductive deficiencies in zebrafish.
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Affiliation(s)
- Emmanouil Tsakoumis
- Department of Organismal Biology, Environmental Toxicology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden.
| | - Ehsan Pashay Ahi
- Organismal and Evolutionary Biology Research Program, University of Helsinki, Helsinki, Finland.
| | - Monika Schmitz
- Department of Organismal Biology, Environmental Toxicology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden.
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Sun D, Yu H, Li Q. Genome-Wide Differential DNA Methylomes Provide Insights into the Infertility of Triploid Oysters. Mar Biotechnol (NY) 2022; 24:18-31. [PMID: 35041105 DOI: 10.1007/s10126-021-10083-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 11/03/2021] [Indexed: 06/14/2023]
Abstract
Chromosomal incompatibility and gene expression changes would affect the development of polyploid gonad and gamete formation. The role of epigenetics like DNA methylation in reproductive development is fully demonstrated in diploid animals. The lack of polyploid species and the infertility of polyploid animals, especially the odd ploidy, limit the study of epigenetic regulation mechanism of polyploid reproduction. Fertile and infertile individuals exist in triploid Pacific oyster Crassostrea gigas, which provide an interesting model for studies on the effect of epigenetic regulation on gonadal development. The whole genome single base resolution DNA methylomes in gonads of triploid females α (F-3nα), triploid females β (F-3nβ), triploid males α (M-3nα), triploid hermaphrodite predominantly males (HPM-3n), diploid females (F-2n), and diploid males (M-2n) were generated by using bisulfite-sequencing. The overall DNA methylation profiles in gene regions and transposable regions of fertile and infertile triploid oysters were consistent with those of diploid oysters. The DNA methylation level of CG context decreased in infertile triploid oysters, with more hypomethylated than hypermethylated regions, and the opposite is true in fertile triploid oysters. Genes harbored with differentially methylated regions (DMRs) in infertile triploids were mainly related to the metabolism pathways and the signal pathways. Correlation analysis indicated that the expression of gene transcriptions was generally positively associated with DNA methylation in gene body regions, and DMRs in infertile triploid oysters played significant roles in gonadal development as a possible critical epigenetic regulator of gonadal development gene transcriptional activity. These findings indicate a potential relationship between DNA methylation variability and gene expression plasticity in newly formed polyploidy. As far as we know, this is the first study revealing the epigenetic regulation of gonadal development in invertebrates based on fertile and infertile models, meanwhile providing a new mentality to explore the regulatory mechanisms of infertility in triploids.
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Affiliation(s)
- Dongfang Sun
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China), Qingdao, 266003, China
| | - Hong Yu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China), Qingdao, 266003, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Qi Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China), Qingdao, 266003, China.
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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42
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Han Y, Gao Y, Li Y, Zhai X, Zhou H, Ding Q, Ma L. Chloroplast Genes Are Involved in The Male-Sterility of K-Type CMS in Wheat. Genes (Basel) 2022; 13:genes13020310. [PMID: 35205355 PMCID: PMC8871828 DOI: 10.3390/genes13020310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/30/2022] [Accepted: 02/02/2022] [Indexed: 12/04/2022] Open
Abstract
The utilization of crop heterosis can greatly improve crop yield. The sterile line is vital for the heterosis utilization of wheat (Triticum aestivum L.). The chloroplast genomes of two sterile lines and one maintainer were sequenced using second-generation high-throughput technology and assembled. The nonsynonymous mutated genes among the three varieties were identified, the expressed difference was further analyzed by qPCR, and finally, the function of the differentially expressed genes was analyzed by the barley stripe mosaic virus-induced gene silencing (BSMV-VIGS) method. A total of 16 genes containing 31 nonsynonymous mutations between K519A and 519B were identified. There were no base mutations in the protein-encoding genes between K519A and YS3038. The chloroplast genomes of 519B and K519A were closely related to the Triticum genus and Aegilops genus, respectively. The gene expression levels of the six selected genes with nonsynonymous mutation sites for K519A compared to 519B were mostly downregulated at the binucleate and trinucleate stages of pollen development. The seed setting rates of atpB-silenced or ndhH-silenced 519B plants by BSMV-VIGS method were significantly reduced. It can be concluded that atpB and the ndhH are likely to be involved in the reproductive transformation of 519B.
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Affiliation(s)
- Yucui Han
- College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; (Y.H.); (Y.L.)
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
| | - Yujie Gao
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
| | - Yun Li
- College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; (Y.H.); (Y.L.)
| | - Xiaoguang Zhai
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
| | - Hao Zhou
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
| | - Qin Ding
- College of Horticulture, Northwest A&F University, Xianyang 712100, China
- Correspondence: (Q.D.); (L.M.)
| | - Lingjian Ma
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
- Correspondence: (Q.D.); (L.M.)
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43
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Xue Y, Cheng X, Xiong Y, Li K. Gene mutations associated with fertilization failure after in vitro fertilization/intracytoplasmic sperm injection. Front Endocrinol (Lausanne) 2022; 13:1086883. [PMID: 36589837 PMCID: PMC9800785 DOI: 10.3389/fendo.2022.1086883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022] Open
Abstract
Fertilization failure during assisted reproductive technologies (ART) is often unpredictable, as this failure is encountered only after in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) have been performed. The etiology of fertilization failure remains elusive. More and more mutations of genes are found to be involved in human fertilization failure in infertile patients as high throughput sequencing techniques are becoming widely applied. In this review, the mutations of nine important genes expressed in sperm or oocytes, PLCZ1, ACTL7A, ACTL9, DNAH17, WEE2, TUBB8, NLRP5, ZP2, and TLE6, were summarized and discussed. These abnormalities mainly have shown Mendelian patterns of inheritance, including dominant and recessive inheritance, although de novo mutations were present in some cases. The review revealed the crucial roles of each reported gene in the fertilization process and summarized all known mutations and their corresponding phenotypes. The review suggested the mutations might become promising targets for precision treatments in reproductive medicine. Moreover, our work will provide some helpful clues for genetic counseling, risk prediction, and optimizing clinical treatments for human infertility by supplying the useful and timely information on the genetic causes leading to fertilization failure.
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Affiliation(s)
- Yamei Xue
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaohong Cheng
- Institute for Reproductive Health, School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Yuping Xiong
- Institute for Reproductive Health, School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Kun Li
- Institute for Reproductive Health, School of Pharmacy, Hangzhou Medical College, Hangzhou, China
- Zhejiang Provincial Laboratory of Experimental Animal’s & Nonclinical Laboratory Studies, Hangzhou Medical College, Hangzhou, China
- *Correspondence: Kun Li,
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44
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Mozzachiodi S, Tattini L, Llored A, Irizar A, Škofljanc N, D'Angiolo M, De Chiara M, Barré BP, Yue JX, Lutazi A, Loeillet S, Laureau R, Marsit S, Stenberg S, Albaud B, Persson K, Legras JL, Dequin S, Warringer J, Nicolas A, Liti G. Aborting meiosis allows recombination in sterile diploid yeast hybrids. Nat Commun 2021; 12:6564. [PMID: 34772931 PMCID: PMC8589840 DOI: 10.1038/s41467-021-26883-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 10/20/2021] [Indexed: 12/03/2022] Open
Abstract
Hybrids between diverged lineages contain novel genetic combinations but an impaired meiosis often makes them evolutionary dead ends. Here, we explore to what extent an aborted meiosis followed by a return-to-growth (RTG) promotes recombination across a panel of 20 Saccharomyces cerevisiae and S. paradoxus diploid hybrids with different genomic structures and levels of sterility. Genome analyses of 275 clones reveal that RTG promotes recombination and generates extensive regions of loss-of-heterozygosity in sterile hybrids with either a defective meiosis or a heavily rearranged karyotype, whereas RTG recombination is reduced by high sequence divergence between parental subgenomes. The RTG recombination preferentially arises in regions with low local heterozygosity and near meiotic recombination hotspots. The loss-of-heterozygosity has a profound impact on sexual and asexual fitness, and enables genetic mapping of phenotypic differences in sterile lineages where linkage analysis would fail. We propose that RTG gives sterile yeast hybrids access to a natural route for genome recombination and adaptation.
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Grants
- This work was supported by Agence Nationale de la Recherche (ANR-11-LABX-0028-01, ANR-13-BSV6-0006-01, ANR-15-IDEX-01, ANR-16-CE12-0019 and ANR-18-CE12-0004), Fondation pour la Recherche Médicale (FRM EQU202003010413), CEFIPRA, Cancéropôle PACA (AAP Equipment 2018), Meiogenix and the Swedish Research Council (2014-6547, 2014-4605 and 2018-03638). S.Mo. is funded by the convention CIFRE 2016/0582 between Meiogenix and ANRT. The Institut Curie NGS platform is supported by ANR-10-EQPX-03 (Equipex), ANR-10-INBS-09-08 (France Génomique Consortium), ITMO-CANCER and SiRIC INCA-DGOS (4654 program).
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Affiliation(s)
- Simone Mozzachiodi
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
- Meiogenix, 38, rue Servan, Paris, 75011, France
| | | | - Agnes Llored
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | | | - Neža Škofljanc
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | | | | | | | - Jia-Xing Yue
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Angela Lutazi
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
| | - Sophie Loeillet
- Institut Curie, Centre de Recherche, CNRS-UMR3244, PSL Research University, Paris, 75005, France
| | - Raphaelle Laureau
- Institut Curie, Centre de Recherche, CNRS-UMR3244, PSL Research University, Paris, 75005, France
- Department of Genetics and Development, Hammer Health Sciences Center, Columbia University Medical Center, New York, NY, USA
| | - Souhir Marsit
- Institut Curie, Centre de Recherche, CNRS-UMR3244, PSL Research University, Paris, 75005, France
- SPO, Université Montpellier, INRAE, Montpellier SupAgro, Montpellier, France
- Département de Biologie Chimie et Géographie, Université du Québec à Rimouski, Rimouski, Québec, Canada
| | - Simon Stenberg
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Benoit Albaud
- Institut Curie, ICGEX NGS Platform, Paris, 75005, France
| | - Karl Persson
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Jean-Luc Legras
- SPO, Université Montpellier, INRAE, Montpellier SupAgro, Montpellier, France
| | - Sylvie Dequin
- SPO, Université Montpellier, INRAE, Montpellier SupAgro, Montpellier, France
| | - Jonas Warringer
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Alain Nicolas
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France
- Meiogenix, 38, rue Servan, Paris, 75011, France
- Institut Curie, Centre de Recherche, CNRS-UMR3244, PSL Research University, Paris, 75005, France
| | - Gianni Liti
- Université Côte d'Azur, CNRS, INSERM, IRCAN, Nice, France.
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Li K, Li Q, Bashir ST, Bany BM, Nowak RA. Loss of basigin expression in uterine cells leads to subfertility in female mice†. Biol Reprod 2021; 105:859-875. [PMID: 34106247 PMCID: PMC8511667 DOI: 10.1093/biolre/ioab109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 04/07/2020] [Accepted: 05/27/2021] [Indexed: 01/19/2023] Open
Abstract
Basigin (BSG) is a transmembrane glycoprotein involved in cell proliferation, angiogenesis, and tissue remodeling. BSG has been shown to be essential for male and female reproduction although little is known about its role in normal uterine function. To study the potential function of BSG in the female reproductive tract, we generated mice with conditional knockout of Bsg in uterine cells using progesterone receptor-Cre and hypothesized that BSG is required for normal pregnancy in mice. Fertility study data showed that the conditional knockout mice had significantly reduced fertility compared to controls. Ovarian function of the conditional knockout mice appeared normal with no difference in the number of superovulated oocytes collected or in serum progesterone levels between the conditional knockout and the control mice. Uterine tissues collected at various times of gestation showed increased abnormalities in implantation, decidualization, placentation, and parturition in the conditional knockout mice. Uterine cross sections on Day 5 of pregnancy showed implantation failure and abnormal uterine epithelial differentiation in a large proportion of the conditional knockout mice. There was a compromised decidual response to artificial decidualization stimuli and decreased mRNA and protein levels for decidualization genes in the uteri of the conditional knockout mice. We also observed altered protein expression of monocarboxylate transporter 1 (MCT1), as well as impaired angiogenesis in the conditional knockout uteri compared to the controls. These results support that BSG is required for successful pregnancy through its functions in implantation and decidualization.
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Affiliation(s)
- Kailiang Li
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Quanxi Li
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Shah Tauseef Bashir
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Brent M Bany
- Department of Physiology, Southern Illinois University School of Medicine, Carbondale, IL, USA
| | - Romana A Nowak
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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Daneshvar M, Movahedin M, Salehi M, Noruzinia M. Alterations of miR-16, miR-let-7a and their target genes expression in human blastocysts following vitrification and re-vitrification. Reprod Biol Endocrinol 2021; 19:155. [PMID: 34627262 PMCID: PMC8501585 DOI: 10.1186/s12958-021-00842-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 09/29/2021] [Indexed: 01/05/2023] Open
Abstract
Embryo cryopreservation is a widely used technique in infertility management and today is an essential part of assisted reproductive technology (ART). In some cases, re-vitrification can be applied to good quality supernumerary warmed embryos that have not been transferred in the present cycle. However, there is no study about re-vitrification impact on microRNA and gene expression in human embryos. The purpose of this study is to evaluate miR-16, miR-let7a and target genes expression in in vitro produced human blastocysts following re-vitrification.Day3 embryos obtained from ICSI cycles of fertile couples referring for family balancing program were biopsied and cultured individually. On the fourth day (post-ICSI) male ones (choices of their parents) were transferred and the females (good quality embryos) were donated for research. Donated embryos were cultured to blastocyst stage and assigned to three groups: fresh, vitrified and re-vitrification. Embryos were vitrified on Cryotech carriers. Then blastocysts of three groups were individually assessed for expression of miR-16, miR-let7a and target genes.The results showed that re-vitrification of human blastocysts did not affect the ability to re-expand in culture. In addition, significant decrease was observed in miR-16 and miR-let7a expression in re-vitrified group compared to fresh (p < 0.05). A significant upregulation of the target genes ITGβ3 and BCL-2 in re-vitrified and vitrified embryos was observed compared to the fresh group (p < 0.05). The expression of BAX as a pro-apoptotic gene showed a significant decrease in re-vitrification group comparing with the fresh one (P < 0.05).The results of this research indicated that re-vitrification of embryos changes the expression of miR-16, miR-let-7a and their target genes. These alterations include increased expression of BCl-2 and ITGβ3 genes which play important roles in embryo survival and implantation, respectively. Clinical proof of these effects requires further research.
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Affiliation(s)
- Maryam Daneshvar
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mansoureh Movahedin
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Mohammad Salehi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehrdad Noruzinia
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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47
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Abstract
OBJECTIVE The rare condition 46, XY disorders of sex development (DSDs) is characterized by the female phenotype and male karyotype. We aimed to describe the genetic basis of 46, XY DSDs in nine patients and the genotype-phenotype relationships of the genes involved. METHODS Targeted next-generation sequencing (NGS) was used to analyze the underlying hereditary etiology in nine female patients with 46, XY DSDs. In silico analyses were used to predict the effects of novel variants on the protein function of the identified genes. RESULTS Primary amenorrhea with the absence of puberty, inguinal hernia, and clitoridauxe were common complaints. All enrolled patients had a differential etiology by genetic testing, and five novel genetic variants involved in four genes (SRY, AR, NR5A1, and LHCGR) were identified. A novel nonsense variant of SRY c.51C > G was found in XY patients without testicles. Two novel heterozygous variants, i.e. c.265A > T (Ile89Leu) and c.422T > C (Val141Ala), of the LHCGR gene were found in male pseudo-hermaphroditism. CONCLUSIONS We expanded the genetic mutation spectrum and described in detail the genotype-phenotype relationships of 46, XY DSDs. DNA sequencing for SRY should be a priority in female patients with 46, XY DSDs. NGS is useful for clarifying genetic pathogenesis and could provide a basis for clinical diagnosis and treatments of patients with 46, XY DSDs.
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Affiliation(s)
- Junke Xia
- Center of Genetic and Prenatal Diagnosis, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing Wu
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chen Chen
- Center of Genetic and Prenatal Diagnosis, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhenhua Zhao
- Center of Genetic and Prenatal Diagnosis, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanchuan Xie
- Department of Central Laboratory, the First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Zhouxian Bai
- Center of Genetic and Prenatal Diagnosis, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiangdong Kong
- Center of Genetic and Prenatal Diagnosis, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Cai W, Yang L, Zhang R, Yang Y, Li S, Zhang J. Abnormally increased DNA methylation in chorionic tissue might play an important role in development of ectopic pregnancy. Reprod Biol Endocrinol 2021; 19:101. [PMID: 34215268 PMCID: PMC8252306 DOI: 10.1186/s12958-021-00785-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 06/14/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Human Ectopic Pregnancy (hEP) is the second most common cause of pregnancy-related deaths in the first trimester. Without timely detection, EPs can lead to an increased rate of infertility and an elevated risk for future tubal EPs. In addition, most studies in the field focus on the effect of the fallopian tube (maternal factors) and ignore epigenetic changes in genes and proteins of the embryo, which may also cause EPs. Therefore, the present study hypothesized that embryos also play an important role in the development of EP. The study also speculated that DNA methylation is associated with ectopic pregnancy. Consequently, the effects of DNA methylation on the occurrence and development of ectopic pregnancy were investigated. Moreover, genome-wide DNA methylation of chorionic tissue from ectopic and intrauterine pregnancies was detected using Illumina HumanMethylation450 arrays. RESULTS Forty-three hypermethylated genes involved in the regulation of adhesion as well as gene transcription and translation were identified. Furthermore, the PPI network showed that AMOTL1, SDR42E1, CAMTA1, PIP5K1C, KIAA1614, TSTD1 and DNER may play important roles in the occurrence and development of ectopic pregnancy. In addition, SDR42E1, CAMTA1 and TSTD1 displayed higher levels of methylation in ectopic pregnancy while PIP5K1C and DNER showed low degrees of methylation. CONCLUSIONS The study reveals that abnormal increase in methylation may be an early indicator or an inducer of ectopic pregnancy. In addition, AMOTL1, SDR42E1, CAMTA1, PIP5K1C, KIAA1614, TSTD1 and DNER might play important roles in the occurrence and development of ectopic pregnancy. However, the specific molecular mechanisms are still unclear and require further studies.
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Affiliation(s)
- Wen Cai
- grid.16821.3c0000 0004 0368 8293Department of Obstetris and Gynecology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Liu Yang
- grid.16821.3c0000 0004 0368 8293Department of Obstetris and Gynecology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- grid.413087.90000 0004 1755 3939Department of Obstetris and Gynecology, Zhongshan Hospital Fudan University, Shanghai, China
| | - Ruiqing Zhang
- grid.413087.90000 0004 1755 3939Department of Obstetris and Gynecology, Zhongshan Hospital Fudan University, Shanghai, China
| | - Yixia Yang
- grid.16821.3c0000 0004 0368 8293Department of Obstetris and Gynecology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shuangdi Li
- grid.459512.eShanghai First Maternity and Infant Hospital, Shanghai, China
| | - Jiarong Zhang
- grid.16821.3c0000 0004 0368 8293Department of Obstetris and Gynecology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- grid.413087.90000 0004 1755 3939Department of Obstetris and Gynecology, Zhongshan Hospital Fudan University, Shanghai, China
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Patankar A, Gajbhiye R, Surve S, Parte P. Epigenetic landscape of testis specific histone H2B variant and its influence on sperm function. Clin Epigenetics 2021; 13:101. [PMID: 33933143 PMCID: PMC8088685 DOI: 10.1186/s13148-021-01088-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/21/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Biological relevance of the major testis specific histone H2B variant (TH2B) in sperm is not fully understood. Studies in TH2A/TH2B double knockout male mice indicate its role in chromatin compaction and male fertility. Additionally, the presence of TH2B and TH2A reportedly generates more dynamic nucleosomes, leading to an open chromatin structure characteristic of transcriptionally active genome. Given that mature human sperm are transcriptionally and translationally inactive, the presence of TH2B in mature sperm is intriguing. To address its role in sperm, we investigated the genome-wide localization of TH2B in sperm of fertile men. RESULTS We have identified the genomic loci associated with TH2B in fertile human sperm by ChIP-seq analysis. Bioinformatic analysis revealed ~ 5% sperm genome and 5527 genes to be associated with TH2B. Out of these 105 (1.9%) and 144 (2.6%) genes showed direct involvement in sperm function and early embryogenesis, respectively. Chromosome wide analysis for TH2B distribution indicated its least distribution on X and Y chromosomes and varied distribution on autosomes. TH2B showed relatively higher percentage of gene association on chromosome 4, 18, 3 and 2. TH2B enrichment was more in promoter and gene body region. Gene Ontology (GO) analysis revealed signal transduction and associated kinase activity as the most enriched biological and molecular function, respectively. We also observed the enrichment of TH2B at developmentally important loci, such as HOXA and HOXD and on genes required for normal sperm function, few of which were validated by ChIP-qPCR. The relative expression of these genes was altered in particular subgroup of infertile men showing abnormal chromatin packaging. Chromatin compaction positively correlated with sperm- motility, concentration, viability and with transcript levels of PRKAG2 and CATSPER B. CONCLUSION ChIP-seq analysis of TH2B revealed a putative role of TH2B in sperm function and embryo development. Altered expression of TH2B associated genes in infertile individuals with sperm chromatin compaction defects indicates involvement of TH2B in transcriptional regulation of these genes in post meiotic male germ cells. This altered transcriptome may be a consequence or cause of abnormal nuclear remodeling during spermiogenesis.
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Affiliation(s)
- Aniket Patankar
- Department of Gamete Immunobiology, ICMR- National Institute for Research in Reproductive Health, Parel, Mumbai, 400012, India
| | - Rahul Gajbhiye
- Department of Clinical Research, ICMR- National Institute for Research in Reproductive Health, Parel, Mumbai, 400012, India
| | - Suchitra Surve
- Department of Clinical Research, ICMR- National Institute for Research in Reproductive Health, Parel, Mumbai, 400012, India
| | - Priyanka Parte
- Department of Gamete Immunobiology, ICMR- National Institute for Research in Reproductive Health, Parel, Mumbai, 400012, India.
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Ménézo Y, Patrizio P, Alvarez S, Amar E, Brack M, Brami C, Chouteau J, Clement A, Clement P, Cohen M, Cornet D, Dale B, D' Amato G, Jacquesson-Fournols L, Mares P, Neveux P, Sage JC, Servy E, Huong TM, Viot G. MTHFR (methylenetetrahydrofolate reductase: EC 1.5.1.20) SNPs (single-nucleotide polymorphisms) and homocysteine in patients referred for investigation of fertility. J Assist Reprod Genet 2021; 38:2383-2389. [PMID: 33914208 PMCID: PMC8490548 DOI: 10.1007/s10815-021-02200-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/18/2021] [Indexed: 11/26/2022] Open
Abstract
Purpose MTHFR, one of the major enzymes in the folate cycle, is known to acquire single-nucleotide polymorphisms that significantly reduce its activity, resulting in an increase in circulating homocysteine. Methylation processes are of crucial importance in gametogenesis, involved in the regulation of imprinting and epigenetic tags on DNA and histones. We have retrospectively assessed the prevalence of MTHFR SNPs in a population consulting for infertility according to gender and studied the impact of the mutations on circulating homocysteine levels. Methods More than 2900 patients having suffered at least two miscarriages (2 to 9) or two failed IVF/ICSI (2 to 10) attempts were included for analysis of MTHFR SNPs C677T and A1298C. Serum homocysteine levels were measured simultaneously. Results We observed no difference in the prevalence of different genetic backgrounds between men and women; only 15% of the patients were found to be wild type. More than 40% of the patients are either homozygous for one SNP or compound heterozygous carriers. As expected, the C677T SNP shows the greatest adverse effect on homocysteine accumulation. The impact of MTHFR SNPs on circulating homocysteine is different in men than in women. Conclusions Determination of MTHFR SNPs in both men and women must be seriously advocated in the presence of long-standing infertility; male gametes, from MTHFR SNPs carriers, are not exempted from exerting a hazardous impact on fertility. Patients should be informed of the pleiotropic medical implications of these SNPs for their own health, as well as for the health of future children.
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Affiliation(s)
- Yves Ménézo
- Laboratoire Clement, Avenue d Eylau, 75016, Paris, France.
- London Fertility Associates, Harley St, London, UK.
| | | | | | - Edouard Amar
- Hopital Américain de Paris, Neuilly-sur-Seine, France
| | | | - Charles Brami
- Hopital Américain de Paris, Neuilly-sur-Seine, France
| | | | - Arthur Clement
- Laboratoire Clement, Avenue d Eylau, 75016, Paris, France
| | | | | | | | - Brian Dale
- London Fertility Associates, Harley St, London, UK
- Centro Fecondazione Assistita, Napoli, Italy
| | | | | | | | | | | | | | - To Minh Huong
- VINMEC International Hospital, 458 Minh Khai, Hanoi, Vietnam
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