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Zhou J, Mao R, Wang M, Long R, Gao L, Wang X, Jin L, Zhu L. A novel heterozygous missense variant of PANX1 causes human oocyte death and female infertility. J Ovarian Res 2024; 17:180. [PMID: 39232764 PMCID: PMC11373391 DOI: 10.1186/s13048-024-01462-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 06/18/2024] [Indexed: 09/06/2024] Open
Abstract
Pannexin1 (PANX1) is a highly glycosylated membrane channel-forming protein, which has been found to implicate in multiple physiological and pathophysiological functions. Variants in the PANX1 gene have been reported to be associated with oocyte death and recurrent in vitro fertilization failure. In this study, we identified a novel heterozygous PANX1 variant (NM_015368.4 c.410 C > T (p.Ser137Leu)) associated with the phenotype of oocyte death in a non-consanguineous family, followed by an autosomal dominant (AD) mode. We explored the molecular mechanism of the novel variant and the variant c.976_978del (p.Asn326del) that we reported previously. Both of the variants altered the PANX1 glycosylation pattern in cultured cells, led to aberrant PANX1 channel activation, affected ATP release and membrane electrophysiological properties, which resulted in mouse and human oocyte death in vitro. For the first time, we presented the direct evidence of the effect of the PANX1 variants on human oocyte development. Our findings expand the variant spectrum of PANX1 genes associated with oocyte death and provide new support for the genetic diagnosis of female infertility.
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Affiliation(s)
- Juepu Zhou
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jiefang Road, Wuhan, 430030, China
| | - Ruolin Mao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jiefang Road, Wuhan, 430030, China
| | - Meng Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jiefang Road, Wuhan, 430030, China
| | - Rui Long
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jiefang Road, Wuhan, 430030, China
| | - Limin Gao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jiefang Road, Wuhan, 430030, China
| | - Xiangfei Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jiefang Road, Wuhan, 430030, China
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jiefang Road, Wuhan, 430030, China.
| | - Lixia Zhu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jiefang Road, Wuhan, 430030, China.
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Hu HY, Zhang GH, Deng WF, Wei TY, Feng ZK, Li CX, Li SJ, Liu JE, Tian YP. Novel PATL2 variants cause female infertility with oocyte maturation defect. J Assist Reprod Genet 2024; 41:1965-1976. [PMID: 38954294 PMCID: PMC11339215 DOI: 10.1007/s10815-024-03150-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 05/22/2024] [Indexed: 07/04/2024] Open
Abstract
PURPOSE Oocyte maturation defect (OOMD) is a rare cause of in vitro fertilization failure characterized by the production of immature oocytes. Compound heterozygous or homozygous PATL2 mutations have been associated with oocyte arrest at the germinal vesicle (GV), metaphase I (MI), and metaphase II (MII) stages, as well as morphological changes. METHODS In this study, we recruited three OOMD cases and conducted a comprehensive multiplatform laboratory investigation. RESULTS Whole exome sequence (WES) revealed four diagnostic variants in PATL2, nonsense mutation c.709C > T (p.R237*) and frameshift mutation c.1486_1487delinsT (p.A496Sfs*4) were novel mutations that have not been reported previously. Furthermore, the pathogenicity of these variants was predicted using in silico analysis, which indicated detrimental effects. Molecular dynamic analysis suggested that the A496S variant disrupted the hydrophobic segment, leading to structural changes that affected the overall protein folding and stability. Additionally, biochemical and molecular experiments were conducted on cells transfected with wild-type (WT) or mutant PATL2 (p.R237* and p.A496Sfs*4) plasmid vectors. CONCLUSIONS The results demonstrated that PATL2A496Sfs*4 and PATL2R237* had impacts on protein size and expression level. Interestingly, expression levels of specific genes involved in oocyte maturation and early embryonic development were found to be simultaneously deregulated. The findings in our study expand the variation spectrum of the PATL2 gene, provide solid evidence for counseling on future pregnancies in affected families, strongly support the application of in the diagnosis of OOMD, and contribute to the understanding of PATL2 function.
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Affiliation(s)
- Hua-Ying Hu
- Birth Defects Prevention and Control Technology Research Center, Medical Innovation Research Division of Chinese, PLA General Hospital, Beijing, 100853, China
| | - Ge-Han Zhang
- Translational Medicine Research Center, Medical Innovation Research Division of Chinese, PLA General Hospital, Beijing, China
| | - Wei-Fen Deng
- Shenzhen Hengsheng Hospital, Shenzhen, Guangdong, China
| | - Tian-Ying Wei
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing, 100191, China
| | - Zhan-Ke Feng
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing, 100191, China
| | - Cun-Xi Li
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing, 100191, China
| | - Song Jun Li
- The Reproduction Medical Center, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, Guangdong, China.
| | - Jia-En Liu
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing, 100191, China.
| | - Ya-Ping Tian
- Birth Defects Prevention and Control Technology Research Center, Medical Innovation Research Division of Chinese, PLA General Hospital, Beijing, 100853, China.
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Liu Z, Xi Q, Hou M, Zou T, Liu H, Zhou X, Jin L, Zhu L, Zhang X. Loss of function variant in CIP2A associated with female infertility with early embryonic arrest and fragmentation. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167228. [PMID: 38734318 DOI: 10.1016/j.bbadis.2024.167228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND Early embryonic arrest and fragmentation (EEAF) is a common cause of female infertility, but the genetic causes remain to be largely unknown. CIP2A encodes the cellular inhibitor of PP2A, playing a crucial role in mitosis and mouse oocyte meiosis. METHODS Exome sequencing and Sanger sequencing were performed to identify candidate causative genes in patients with EEAF. The pathogenicity of the CIP2A variant was assessed and confirmed in cultured cell lines and human oocytes through Western blotting, semi-quantitative RT-PCR, TUNEL staining, and fluorescence localization analysis. FINDINGS We identified CIP2A (c.1510C > T, p.L504F) as a novel disease-causing gene in human EEAF from a consanguineous family. L504 is highly conserved throughout evolution. The CIP2A variant (c.1510C > T, p.L504F) reduced the expression level of the mutant CIP2A protein, leading to the abnormal aggregation of mutant CIP2A protein and cell apoptosis. Abnormal aggregation of CIP2A protein and chromosomal dispersion occurred in the patient's oocytes and early embryos. We further replicated the patient phenotype by knockdown CIP2A in human oocytes. Additionally, CIP2A deficiency resulted in decreased levels of phosphorylated ERK1/2. INTERPRETATION We first found that the CIP2A loss-of-function variant associate with female infertility characterized by EEAF. Our findings suggest the uniqueness and importance of CIP2A gene in human oocyte and early embryo development. FUNDING This work was supported by National Key Research and Development Program of China (2023YFC2706302), the National Natural Science Foundation of China (81000079, 81170165, and 81870959), the HUST Academic Frontier Youth Team (2016QYTD02), and the Key Research of Huazhong University of Science and Technology, Tongji Hospital (2022A20).
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Affiliation(s)
- Zhenxing Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Qingsong Xi
- Oncology Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Meiqi Hou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Tingting Zou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Huihui Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Xiaopei Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lixia Zhu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Xianqin Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
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Ye Z, Li D, Niu X, Yang A, Pan Z, Yu R, Gu H, Shi R, Wu L, Xiang Y, Hao G, Kuang Y, Chen B, Wang L, Sang Q, Li L, Shi J, Li Q. Identification novel mutations and phenotypic spectrum expanding in PATL2 in infertile women with IVF/ICSI failure. J Assist Reprod Genet 2024; 41:1233-1243. [PMID: 38536595 PMCID: PMC11143103 DOI: 10.1007/s10815-024-03071-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 02/19/2024] [Indexed: 06/01/2024] Open
Abstract
AIM Abnormalities in oocyte maturation, fertilization, and early embryonic development are major causes of primary infertility in women who are undergoing IVF/ICSI attempts. Although many genetic factors responsible for these abnormal phenotypes have been identified, there are more additional pathogenic genes and variants yet to be discovered. Previous studies confirmed that bi-allelic PATL2 deficiency is an important factor for female infertility. In this study, 935 infertile patients with IVF/ICSI failure were selected for whole-exome sequencing, and 18 probands carrying PATL2 variants with a recessive inheritance pattern were identified. METHODS We estimated that the prevalence contributed by PATL2 was 1.93% (18/935) in our study cohort. RESULTS 15 novel variants were found in those families, including c.1093C > T, c.1609dupA, c.1204C > T, c.643dupG, c.877-2A > G, c.1228C > G, c.925G > A, c.958G > A, c.4A > G, c.1258T > C, c.1337G > A, c.1264dupA, c.88G > T, c.1065-2A > G, and c.1271T > C. The amino acids altered by the corresponding variants were highly conserved in mammals, and in silico analysis and 3D molecular modeling suggested that the PATL2 mutants impaired the physiologic function of the resulting proteins. Diverse clinical phenotypes, including oocyte maturation defect, fertilization failure, and early embryonic arrest might result from different variants of PATL2. CONCLUSIONS These results expand the spectrum of PATL2 variants and provide an important reference for genetic counseling for female infertility, and they increase our understanding of the mechanisms of oocyte maturation arrest caused by PATL2 deficiency.
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Affiliation(s)
- Zhiqi Ye
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Da Li
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Shengjing Hospital, China Medical University, Shenyang, 110004, China
| | - Xiangli Niu
- The Reproductive Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530029, China
| | - Aimin Yang
- Department of Reproductive Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhiqi Pan
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Ran Yu
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Hao Gu
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Rong Shi
- Reproductive Center, Northwest Women's and Children's Hospital, Xi'an, 710000, Shaanxi, China
| | - Ling Wu
- The Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanfang Xiang
- Key Laboratory of Human Reproduction and Genetics, Department of Reproductive Medicine, Nanchang Reproductive Hospital, Nanchang, Jiangxi, China
| | - Guimin Hao
- Department of Reproductive Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yanping Kuang
- The Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Biaobang Chen
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Shanghai, China
| | - Lei Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
- Shanghai Center for Women and Children's Health, Shanghai, 200062, China
| | - Qing Sang
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Lin Li
- Key Laboratory of Human Reproduction and Genetics, Department of Reproductive Medicine, Nanchang Reproductive Hospital, Nanchang, Jiangxi, China.
| | - Juanzi Shi
- Reproductive Center, Northwest Women's and Children's Hospital, Xi'an, 710000, Shaanxi, China.
| | - Qiaoli Li
- Institute of Pediatrics, Children's Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China.
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Zhang X, Hu C, Wu L. Advances in the study of genetic factors and clinical interventions for fertilization failure. J Assist Reprod Genet 2023; 40:1787-1805. [PMID: 37289376 PMCID: PMC10371943 DOI: 10.1007/s10815-023-02810-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/18/2023] [Indexed: 06/09/2023] Open
Abstract
Fertilization failure refers to the failure in the pronucleus formation, evaluating 16-18 h post in vitro fertilization or intracytoplasmic sperm injection. It can be caused by sperm, oocytes, and sperm-oocyte interaction and lead to great financial and physical stress to the patients. Recent advancements in genetics, molecular biology, and clinical-assisted reproductive technology have greatly enhanced research into the causes and treatment of fertilization failure. Here, we review the causes that have been reported to lead to fertilization failure in fertilization processes, including the sperm acrosome reaction, penetration of the cumulus and zona pellucida, recognition and fusion of the sperm and oocyte membranes, oocyte activation, and pronucleus formation. Additionally, we summarize the progress of corresponding treatment methods of fertilization failure. This review will provide the latest research advances in the genetic aspects of fertilization failure and will benefit both researchers and clinical practitioners in reproduction and genetics.
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Affiliation(s)
- Xiangjun Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Congyuan Hu
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Limin Wu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China.
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Zhou H, Cai YL, Luo Q, Zou L, Yin YX, Chen Y, Xiong F. High carrier frequency of pathogenic PATL2 gene mutations predicted in population: a bioinformatics-based approach. Front Genet 2023; 14:1097951. [PMID: 37255713 PMCID: PMC10225684 DOI: 10.3389/fgene.2023.1097951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 04/26/2023] [Indexed: 06/01/2023] Open
Abstract
Topoisomerase II homologue 2 (PATL2) has been confirmed to be a key gene that contributes to oocyte maturation. However, the allele distribution and carrier frequency of these mutations remain uncharacterized. So a bioinformatics subcategory analysis of PATL2 mutations from outcome data and Single Nucleotide Polymorphism (SNP) databases was conducted. Altogether, the causative PATL2 mutation number detected in patients with oocyte maturation defects in the clinical studies and pathogenic PATL2 mutation sites predicted by software based on the database was approximately 53. The estimated carrier frequency of pathogenic mutation sites was at least 1.14‰ based on the gnomAD and ExAC database, which was approximately 1/877. The highest frequency of mutations detected in the independent patients was c.223-14_223-2del13. The carrier frequency of this mutation in the population was 0.25‰, which may be a potential threat to fertility. Estimated allele and carrier frequency are relatively higher than those predicted previously based on clinical ascertainment. A review of PATL2 mutation lineage identified in 34 patients showed that 53.81%, 9.22% and 14.72% of the oocytes with PATL2 mutations were arrested at the germinal vesicle (GV) stage, metaphase I (MI) stage and first polar body stage, respectively. Oocytes that could develop to the first polar body stage were extremely rare to fertilise, and their ultimate fate was early embryonic arrest. Phenotypic variability is related to the function of the regions and degree of loss of function of PATL2 protein. A 3D protein structure changes predicted by online tools, AlphaFold, showed aberrations at the mutation sites, which may explain partially the function loss. When the mutated and wild-type proteins are not in the same amino acid category, the protein structure will be considerably unstable. The integration of additional mutation sites with phenotypes is helpful in drawing a complete picture of the disease. Bioinformatics analysis of PATL2 mutations will help reveal molecular epidemiological characteristics and provide an important reference for new mutation assessment, genetic counselling and drug research.
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Affiliation(s)
- Hao Zhou
- Faculty of Science, The University of Sydney, Sydney, NSW, Australia
| | - Ye-Lan Cai
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Qing Luo
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Lian Zou
- Reproduction Center, Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yong-Xiang Yin
- Pathology Department, Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Ying Chen
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Institute of Medical Genetics, Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Fang Xiong
- Reproduction Center, Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
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7
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Wang W, Guo J, Shi J, Li Q, Chen B, Pan Z, Qu R, Fu J, Shi R, Xue X, Mu J, Zhang Z, Wu T, Wang W, Zhao L, Li Q, He L, Sun X, Sang Q, Lin G, Wang L. Bi-allelic pathogenic variants in PABPC1L cause oocyte maturation arrest and female infertility. EMBO Mol Med 2023:e17177. [PMID: 37052235 DOI: 10.15252/emmm.202217177] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/14/2023] Open
Abstract
Oocyte maturation arrest is one of the important causes of female infertility, but the genetic factors remain largely unknown. PABPC1L, a predominant poly(A)-binding protein in Xenopus, mouse, and human oocytes and early embryos prior to zygotic genome activation, plays a key role in translational activation of maternal mRNAs. Here, we identified compound heterozygous and homozygous variants in PABPC1L that are responsible for female infertility mainly characterized by oocyte maturation arrest in five individuals. In vitro studies demonstrated that these variants resulted in truncated proteins, reduced protein abundance, altered cytoplasmic localization, and reduced mRNA translational activation by affecting the binding of PABPC1L to mRNA. In vivo, three strains of Pabpc1l knock-in (KI) female mice were infertile. RNA-sequencing analysis showed abnormal activation of the Mos-MAPK pathway in the zygotes of KI mice. Finally, we activated this pathway in mouse zygotes by injecting human MOS mRNA, and this mimicked the phenotype of KI mice. Our findings reveal the important roles of PABPC1L in human oocyte maturation and add a genetic potential candidate gene to be screened for causes of infertility.
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Affiliation(s)
- Weijie Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Jing Guo
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Juanzi Shi
- Reproductive Medicine Center, Shaanxi Maternal and Child Care Service Center, Xi'an, China
| | - Qun Li
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
- Human Phenome Institute, Fudan University, Shanghai, China
| | - Biaobang Chen
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
| | - Zhiqi Pan
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Ronggui Qu
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Jing Fu
- Shanghai Ji Ai Genetics and IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Rong Shi
- Reproductive Medicine Center, Shaanxi Maternal and Child Care Service Center, Xi'an, China
| | - Xia Xue
- Reproductive Medicine Center, Shaanxi Maternal and Child Care Service Center, Xi'an, China
| | - Jian Mu
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Zhihua Zhang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Tianyu Wu
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Wenjing Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Lin Zhao
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Qiaoli Li
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Lin He
- Bio-X Center, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoxi Sun
- Shanghai Ji Ai Genetics and IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Qing Sang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Ge Lin
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Lei Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
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8
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Chang L, Fukuoka Y, Aouizerat BE, Zhang L, Flowers E. Prediction of Weight Loss in Filipino Americans to Decrease Risk for Type 2 Diabetes: Using Multi-Dimensional Data (Preprint). JMIR Diabetes 2022; 8:e44018. [PMID: 37040172 PMCID: PMC10131631 DOI: 10.2196/44018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Type 2 diabetes (T2D) has an immense disease burden, affecting millions of people worldwide and costing billions of dollars in treatment. As T2D is a multifactorial disease with both genetic and nongenetic influences, accurate risk assessments for patients are difficult to perform. Machine learning has served as a useful tool in T2D risk prediction, as it can analyze and detect patterns in large and complex data sets like that of RNA sequencing. However, before machine learning can be implemented, feature selection is a necessary step to reduce the dimensionality in high-dimensional data and optimize modeling results. Different combinations of feature selection methods and machine learning models have been used in studies reporting disease predictions and classifications with high accuracy. OBJECTIVE The purpose of this study was to assess the use of feature selection and classification approaches that integrate different data types to predict weight loss for the prevention of T2D. METHODS The data of 56 participants (ie, demographic and clinical factors, dietary scores, step counts, and transcriptomics) were obtained from a previously completed randomized clinical trial adaptation of the Diabetes Prevention Program study. Feature selection methods were used to select for subsets of transcripts to be used in the selected classification approaches: support vector machine, logistic regression, decision trees, random forest, and extremely randomized decision trees (extra-trees). Data types were included in different classification approaches in an additive manner to assess model performance for the prediction of weight loss. RESULTS Average waist and hip circumference were found to be different between those who exhibited weight loss and those who did not exhibit weight loss (P=.02 and P=.04, respectively). The incorporation of dietary and step count data did not improve modeling performance compared to classifiers that included only demographic and clinical data. Optimal subsets of transcripts identified through feature selection yielded higher prediction accuracy than when all available transcripts were included. After comparison of different feature selection methods and classifiers, DESeq2 as a feature selection method and an extra-trees classifier with and without ensemble learning provided the most optimal results, as defined by differences in training and testing accuracy, cross-validated area under the curve, and other factors. We identified 5 genes in two or more of the feature selection subsets (ie, CDP-diacylglycerol-inositol 3-phosphatidyltransferase [CDIPT], mannose receptor C type 2 [MRC2], PAT1 homolog 2 [PATL2], regulatory factor X-associated ankyrin containing protein [RFXANK], and small ubiquitin like modifier 3 [SUMO3]). CONCLUSIONS Our results suggest that the inclusion of transcriptomic data in classification approaches for prediction has the potential to improve weight loss prediction models. Identification of which individuals are likely to respond to interventions for weight loss may help to prevent incident T2D. Out of the 5 genes identified as optimal predictors, 3 (ie, CDIPT, MRC2, and SUMO3) have been previously shown to be associated with T2D or obesity. TRIAL REGISTRATION ClinicalTrials.gov NCT02278939; https://clinicaltrials.gov/ct2/show/NCT02278939.
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Affiliation(s)
- Lisa Chang
- Department of Physiological Nursing, University of California, San Francisco, San Francisco, CA, United States
- Keck Graduate Institute, Claremont, CA, United States
| | - Yoshimi Fukuoka
- Department of Physiological Nursing, University of California, San Francisco, San Francisco, CA, United States
| | - Bradley E Aouizerat
- Bluestone Center for Clinical Research, New York University, New York, NY, United States
- Department of Oral and Maxillofacial Surgery, New York University, New York, NY, United States
| | - Li Zhang
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, United States
- Department of Medicine, University of California San Francisco, San Francisco, CA, United States
| | - Elena Flowers
- Department of Physiological Nursing, University of California, San Francisco, San Francisco, CA, United States
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA, United States
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9
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Solovova OA, Chernykh VB. Genetics of Oocyte Maturation Defects and Early Embryo Development Arrest. Genes (Basel) 2022; 13:1920. [PMID: 36360157 PMCID: PMC9689903 DOI: 10.3390/genes13111920] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 08/08/2023] Open
Abstract
Various pathogenic factors can lead to oogenesis failure and seriously affect both female reproductive health and fertility. Genetic factors play an important role in folliculogenesis and oocyte maturation but still need to be clarified. Oocyte maturation is a well-organized complex process, regulated by a large number of genes. Pathogenic variants in these genes as well as aneuploidy, defects in mitochondrial genome, and other genetic and epigenetic factors can result in unexplained infertility, early pregnancy loss, and recurrent failures of IVF/ICSI programs due to poor ovarian response to stimulation, oocyte maturation arrest, poor gamete quality, fertilization failure, or early embryonic developmental arrest. In this paper, we review the main genes, as well as provide a description of the defects in the mitochondrial genome, associated with female infertility.
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10
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Sun L, Tong K, Liu W, Tian Y, Yang S, Zhou D, Liu D, Huang G, Li J. Identification and characterization of a novel homozygous splice site variant of PATL2 causing female infertility due to oocyte germinal vesicle arrest. Front Genet 2022; 13:967288. [PMID: 36072676 PMCID: PMC9441802 DOI: 10.3389/fgene.2022.967288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
Background: This study aims to describe clinical and diagnostic phenotype and identify pathogenic variants of a female with unknown causes of infertility.Methods: Clinical assessment was performed for the phenotype diagnosis. Whole-exome sequencing (WES) and the followed cDNA-PCR sequencing were applied to identify the pathogenic variant and investigate the potentially aberrant mRNA splicing event. The pathogenicity of the variant was analysed using multiple in silico prediction tools, including the 3D protein remodelling. Quantitative RT-PCR (qRT-PCR) was performed to measure PATL2 mRNA expression in the peripheral blood leukocytes of the proband and controls.Results: The proband was diagnosed with the female infertility due to oocyte germinal vesicle (GV) arrest. A novel homozygous splice site variant of PATL2 (NM_001145112.2, c.871-1G>A), inherited from her asymptomatic heterozygous parents, was detected by WES. Sequencing of cDNA amplification products demonstrated that this variant resulted in the exon 10 skipping and in-frame loss of 54 nucleotides in the PATL2 transcript. Quantitative RT-PCR suggested that the mutant transcript escape the mRNA degradation.Conclusion: We identified a novel pathogenic homozygous splice site of PATL2 (c.871-1G>A) underlying the oocyte GV arrest phenotype and elucidated its molecular mechanism. This study expands the variant spectrum of PATL2 and benefits our understanding of its genotype-phenotype correlations.
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Affiliation(s)
- Liwei Sun
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
| | - Keya Tong
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
| | - Weiwei Liu
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
| | - Yin Tian
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
| | - Sheng Yang
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
| | - Danni Zhou
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
| | - Dongyun Liu
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
| | - Guoning Huang
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- *Correspondence: Guoning Huang, ; Jingyu Li,
| | - Jingyu Li
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- *Correspondence: Guoning Huang, ; Jingyu Li,
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11
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Ozturk S. Molecular determinants of the meiotic arrests in mammalian oocytes at different stages of maturation. Cell Cycle 2022; 21:547-571. [PMID: 35072590 PMCID: PMC8942507 DOI: 10.1080/15384101.2022.2026704] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 12/21/2021] [Accepted: 01/03/2022] [Indexed: 01/26/2023] Open
Abstract
Mammalian oocytes undergo two rounds of developmental arrest during maturation: at the diplotene of the first meiotic prophase and metaphase of the second meiosis. These arrests are strictly regulated by follicular cells temporally producing the secondary messengers, cAMP and cGMP, and other factors to regulate maturation promoting factor (composed of cyclin B1 and cyclin-dependent kinase 1) levels in the oocytes. Out of these normally appearing developmental arrests, permanent arrests may occur in the oocytes at germinal vesicle (GV), metaphase I (MI), or metaphase II (MII) stage. This issue may arise from absence or altered expression of the oocyte-related genes playing key roles in nuclear and cytoplasmic maturation. Additionally, the assisted reproductive technology (ART) applications such as ovarian stimulation and in vitro culture conditions both of which harbor various types of chemical agents may contribute to forming the permanent arrests. In this review, the molecular determinants of developmental and permanent arrests occurring in the mammalian oocytes are comprehensively evaluated in the light of current knowledge. As number of permanently arrested oocytes at different stages is increasing in ART centers, potential approaches for inducing permanent arrests to obtain competent oocytes are discussed.
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Affiliation(s)
- Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University School of Medicine, Antalya, Turkey
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12
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Picchetta L, Caroselli S, Figliuzzi M, Cogo F, Zambon P, Costa M, Pergher I, Patassini C, Cortellessa F, Zuccarello D, Poli M, Capalbo A. Molecular tools for the genomic assessment of oocyte’s reproductive competence. J Assist Reprod Genet 2022; 39:847-860. [PMID: 35124783 PMCID: PMC9050973 DOI: 10.1007/s10815-022-02411-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/24/2022] [Indexed: 12/15/2022] Open
Abstract
The most important factor associated with oocytes' developmental competence has been widely identified as the presence of chromosomal abnormalities. However, growing application of genome-wide sequencing (GS) in population diagnostics has enabled the identification of multifactorial genetic predispositions to sub-lethal pathologies, including those affecting IVF outcomes and reproductive fitness. Indeed, GS analysis in families with history of isolated infertility has recently led to the discovery of new genes and variants involved in specific human infertility endophenotypes that impact the availability and the functionality of female gametes by altering unique mechanisms necessary for oocyte maturation and early embryo development. Ongoing advancements in analytical and bioinformatic pipelines for the study of the genetic determinants of oocyte competence may provide the biological evidence required not only for improving the diagnosis of isolated female infertility but also for the development of novel preventive and therapeutic approaches for reproductive failure. Here, we provide an updated discussion and review of the progresses made in preconception genomic medicine in the identification of genetic factors associated with oocyte availability, function, and competence.
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13
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Wang M, Yang Q, Liu J, Hu J, Li D, Ren X, Xi Q, Zhu L, Jin L. GVBD rate is an independent predictor for pregnancy in ICSI patients with surplus immature oocytes. Front Endocrinol (Lausanne) 2022; 13:1022044. [PMID: 36699025 PMCID: PMC9868552 DOI: 10.3389/fendo.2022.1022044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION It was reported that there were still up to 30% immature retrieved oocyte at germinal vesicle (GV) or metaphase I (MI) stage. Whether the spontaneous maturity competency of immature oocytes associated to the clinical outcome of in vitro fertilization (IVF) cycles remains unclear and unexplored. This study aimed to investigate how the oocyte developmental parameters in in vitro maturation (IVM) affect clinical outcomes of intracytoplasmic sperm injection (ICSI) cycles. METHODS This retrospective cohort study included couples undergoing ICSI in a university-affiliated hospital. Surplus immature oocytes during ICSI were collected and cultured in vitro. The numbers of germinal vesicle (GV) oocytes undergoing GV breakdown (GVBD) and polar body 1 extrusion within 24 h culture were recorded. The main outcome measurements were demographic baselines and oocyte developmental parameters in IVM associated with pregnancy outcomes. RESULTS A total of 191 couples were included with an overall GVBD rate of 63.7% (327/513) and oocyte maturation rate of 46.8% (240/513). 53.4% (102/191) of them had embryos transferred freshly, which originated from metaphase II oocytes that matured spontaneously in vivo, and 60.8% (62/102) got pregnant. Among factors with a P-value < 0.2 in univariate logistic regression analyses of pregnancy correlation, GVBD rate (OR 3.220, 95% CI 1.060-9.782, P=0.039) and progesterone level on human chorionic gonadotropin (HCG) day (OR 0.231, 95% CI 0.056-0.949, P=0.042) remained significant in the multivariate model. The area under the curve (AUC) of the predictive nomogram was 0.729 (95% CI 0.632-0.826) with an acceptable calibration. Moreover, decision curve analyses illustrated the superior overall net benefit of models that included the GVBD rate in clinical decisions within a wide range of threshold probabilities. CONCLUSION In conclusion, GVBD rate and progesterone level on HCG day may be associated with pregnancy outcomes in infertile couples during the regular ICSI procedure. An elevated GVBD rate within 24 h may greatly increase the likelihood of pregnancy in infertile couples during ICSI. This preliminary study may optimize clinical pregnancy prediction, which provides support in decision-making in clinical practice.
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Affiliation(s)
- Meng Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiyu Yang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Liu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juan Hu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dan Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xinling Ren
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingsong Xi
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lixia Zhu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Lei Jin,
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14
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Zhu L, Yang Q, Jin H, Zhou J, Wang M, Yang L, Li Z, Qian K, Jin L. Oocyte phenotype, genetic diagnosis, and clinical outcome in case of patients with oocyte maturation arrest. Front Endocrinol (Lausanne) 2022; 13:1016563. [PMID: 36440233 PMCID: PMC9684610 DOI: 10.3389/fendo.2022.1016563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/28/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND oocyte maturation arrest (OMA) is currently one of the major causes of in vitro fertilization (IVF) failure, and several gene mutations were found to be associated with OMA. The purpose of this study was to identify the oocyte phenotype, genetic diagnosis, and clinical outcomes of patients with OMA and explore their possible interrelationships, thus providing a more individualized and efficient treatment strategy guidance accordingly. METHODS A retrospective study was conducted, involving 28 infertile women with OMA in the Reproductive Medicine Center of Tongji Hospital from 2018 to 2021. Whole-exome sequencing was performed for the detection of gene mutations. Patients were classified into three groups based on their oocyte phenotype, and for each group, the immature oocytes were cultured in vitro and mature oocytes were fertilized to evaluate both the maturation capacity and developmental potential. The clinical outcomes of OMA patients with different gene mutations or from different groups were further analyzed and compared. RESULTS Twenty-eight women with OMA were evaluated in this study. According to the stage of OMA, 14 (50.0%) women were classified as OMA Type-1 (GV arrest), 5 (17.9%) were OMA Type-2 (MI arrest), and 9 (32.1%) were OMA Type-3 (with both GV and MI arrest). Immature oocytes from OMA patients exhibited significantly lower maturation rates even after IVM, compared to those in general patients. Seven patients (25.0%) were detected to have deleterious variations in two genes (PATL2 and TUBB8), known to be associated with the OMA phenotype. Patients with identified mutations were found to have little opportunity to obtain offspring with their own oocytes. Among the patients without mutations identified, those classified as OMA Type-1 or Type-3 still had a chance to obtain offspring through IVF or natural pregnancy, while all patients in the Type-2 group failed to obtain live birth. CONCLUSIONS Three different phenotypes were observed in patients with OMA. The clinical outcomes of patients were associated with the presence of gene mutations and the classification of oocyte phenotype, thus a reasonable triage system was proposed to optimize the allocation of health care resources and maximize patient benefit.
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Affiliation(s)
| | | | | | | | | | | | - Zhou Li
- *Correspondence: Zhou Li, ; Kun Qian, ; Lei Jin,
| | - Kun Qian
- *Correspondence: Zhou Li, ; Kun Qian, ; Lei Jin,
| | - Lei Jin
- *Correspondence: Zhou Li, ; Kun Qian, ; Lei Jin,
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15
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Zhang J, Xie M, Peng Z, Zhou X, Zhao T, Jin C, Yan Y, Zeng X, Li D, Zhang Y, Su J, Feng N, He J, Yao X, Lv T, Zhu B. Five novel globin gene mutations identified in five Chinese families by next-generation sequencing. Mol Genet Genomic Med 2021; 9:e1835. [PMID: 34708592 PMCID: PMC8683637 DOI: 10.1002/mgg3.1835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 07/13/2021] [Accepted: 09/28/2021] [Indexed: 11/24/2022] Open
Abstract
Background Thalassemia is one of the most common inherited diseases worldwide. This report presents three novel cases of α‐thalassemia and two novel cases of β‐thalassemia caused by five different mutations in the globin gene. Methods Next‐generation sequencing (NGS) was used to identify novel α‐ and β‐thalassemia in five individuals, which was confirmed by Sanger sequencing of the globin gene. Hematological parameters were determined by an automated cell counter, and hemoglobin electrophoresis was carried out by a capillary electrophoresis system, respectively. The isoelectric point (pI), molecular weight, and conservation for the mutations were described by the Internet software programs. The pathogenicity for globin mutations was analyzed by bioinformatics analysis and relative quantitative analysis. Results NGS revealed five novel cases of α‐ and β‐thalassemia: HBA2:c.245C>T, HBA2:c.95+11_95+34delCTCCCCTGCTCCGACCCGGGCTCC, HBA2:c.54delC, HBB:c.373C>A, and HBB:c.40G>A. The clinical implications of these mutations were described. Computational predictions were made for pI, amino acid conservation, and pathogenicity of the missense mutation. Relative quantitative data of the α‐globin mRNA were analyzed. Conclusion Five novel globin mutations were identified in the populations of China, and those mutations were analyzed to provide a mechanistic view for their pathogenicity. These analyzed results improve genetic diagnostics for thalassemia, which can improve screening programs for thalassemia and prenatal diagnosis for Chinese population.
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Affiliation(s)
- Jie Zhang
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Department of Obstetrics and Gynecology, Yunnan Provincial Clinical Research Center for Birth Defects and Rare Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.,Department of Hematology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Meijuan Xie
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Zhiyu Peng
- BGI Genomics, BGI-Shenzhen, Shenzhen, Guangdong, China
| | - Xiaoyan Zhou
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Tingting Zhao
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Chanchan Jin
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yuanlong Yan
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Xiaohong Zeng
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Dongmei Li
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Yangjia Zhang
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Jie Su
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Na Feng
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Jing He
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xiangmei Yao
- Department of Hematology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Tao Lv
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Baosheng Zhu
- Department of Medical Genetics, Yunnan Provincial Key Laboratory for Birth Defects and Genetic Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Department of Obstetrics and Gynecology, Yunnan Provincial Clinical Research Center for Birth Defects and Rare Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.,Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
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Peng SL, Wu QF, Xie Q, Tan J, Shu KY. PATL2 regulated the apoptosis of ovarian granulosa cells in patients with PCOS. Gynecol Endocrinol 2021; 37:629-634. [PMID: 34008465 DOI: 10.1080/09513590.2021.1928066] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
AIM PCOS often showed abnormal follicular development. Previous studies have found that the increased apoptosis of granulosa cells (GCs) is one of the key factors leading to follicular dysplasia. It has been found that the decrease or deletion of PATL2 function can significantly inhibit the development and maturation of human oocytes. We found that PATL2 was also expressed in human ovarian GCs, suggesting that PATL2 may be involved in the regulation of related biological events in GCs. This study aims to explore the function of PATL2 on regulation of GCs apoptosis, and the potential role of PATL2 in the development of PCOS-related abnormal follicles. MATERIALS AND METHODS The follicular GCs of PCOS patients and normal ovulating female patients were collected. Moreover, human granular cell line (KGN) was used for in vitro experiments. RESULTS (1) The maturation rate and fertilization rate of oocytes in the PCOS group were significantly lower than those in the normal control group (p<0.05). (2) Flow cytometry and TUNEL staining showed that the apoptosis level of GCs in the PCOS group was significantly increased. (3) Immunofluorescence and Western Blot showed that the PATL2 expression level of GCs in the PCOS group was significantly reduced. (4) Knocking down the expression of PATL2 by siRNA significantly prevented the apoptosis of GCs. CONCLUSIONS Reduced PATL2 could resulted in the increased apoptosis level of ovarian GCs, which might be closely related to the occurrence and development of abnormal follicles in PCOS.
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Affiliation(s)
- Shao-Lan Peng
- Maternal and Child Health Hospital Affiliated to Nanchang University, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, P. R. China
- Yongkang Maternity and Child Health Care Hospital, Yongkang, Zhejiang, P. R. China
| | - Qiong-Fang Wu
- Maternal and Child Health Hospital Affiliated to Nanchang University, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, P. R. China
- Reproductive Medicine Center, Maternal and Child Health Hospital Affiliated to Nanchang University, Jiangxi Maternal andChild Health Hospital, Nanchang, P. R. China
| | - Qi Xie
- Maternal and Child Health Hospital Affiliated to Nanchang University, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, P. R. China
- Jiangxi Medical College, Nanchang University, Nanchang, P. R. China
| | - Jun Tan
- Maternal and Child Health Hospital Affiliated to Nanchang University, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, P. R. China
- Reproductive Medicine Center, Maternal and Child Health Hospital Affiliated to Nanchang University, Jiangxi Maternal andChild Health Hospital, Nanchang, P. R. China
| | - Kuan-Yong Shu
- Maternal and Child Health Hospital Affiliated to Nanchang University, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, P. R. China
- Department of Gynecology, Maternal and Child Health Hospital of Nanchang University, Jiangxi Maternal and Child Health Hospital, Nanchang, P. R. China
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17
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Liu Z, Xi Q, Zhu L, Yang X, Jin L, Wang J, Zhang T, Zhou X, Zhang D, Peng X, Luo Y, Li Z, Zhang X. TUBB8 Mutations Cause Female Infertility with Large Polar Body Oocyte and Fertilization Failure. Reprod Sci 2021; 28:2942-2950. [PMID: 34160777 DOI: 10.1007/s43032-021-00633-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 05/19/2021] [Indexed: 12/18/2022]
Abstract
Tubulin beta 8 class VIII (TUBB8) is a special β-tubulin isotype that mainly expressed in primate oocytes and early embryos and identified as the disease-causing gene of human oocyte maturation arrest. To identify the disease-causing genes in 2 patients with female infertility due to large polar body oocyte or fertilization failure, whole-exome sequencing was performed on the patients and available family members. We identified a novel heterozygous missense mutation c.817C>G (p.L273V) and a recently reported heterozygous missense mutation c.608A>G (p.D203G) in TUBB8 from two patients, respectively. We found oocyte with a large polar body in the patient who carried the p.D203G mutation in TUBB8. Bioinformatics analysis showed that these two mutations are harmful. The results of western blot and RT-PCR experiments showed that the D203G mutation caused a significant decrease in the expression of TUBB8, and immunostaining showed that the TUBB8 mutation caused abnormal microtubule morphology. These findings suggest that TUBB8 mutations resulted in oocyte with a large polar body and fertilization failure in patients.
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Affiliation(s)
- Zhenxing Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Qingsong Xi
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lixia Zhu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xue Yang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiarui Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Tao Zhang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaopei Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Dazhi Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Xuejie Peng
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Yalin Luo
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Zhou Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Xianqin Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China.
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18
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Sang Q, Zhou Z, Mu J, Wang L. Genetic factors as potential molecular markers of human oocyte and embryo quality. J Assist Reprod Genet 2021; 38:993-1002. [PMID: 33895934 PMCID: PMC8190202 DOI: 10.1007/s10815-021-02196-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/15/2021] [Indexed: 11/24/2022] Open
Abstract
Successful human reproduction requires gamete maturation, fertilization, and early embryonic development. Human oocyte maturation includes nuclear and cytoplasmic maturation, and abnormalities in the process will lead to infertility and recurrent failure of IVF/ICSI attempts. In addition, the quality of oocytes/embryos in the clinic can only be determined by morphological markers, and there is currently a lack of molecular markers for determining oocyte quality. As the number of patients undergoing IVF/ICSI has increased, many patients have been identified with recurrent IVF/ICSI failure. However, the genetic basis behind this phenotype remains largely unknown. In recent years, a few mutant genes have been identified by us and others, which provide potential molecular markers for determining the quality of oocytes/embryos. In this review, we outline the genetic determinants of abnormalities in the processes of oocyte maturation, fertilization, and early embryonic development. Currently, 16 genes (PATL2, TUBB8, TRIP13, ZP1, ZP2, ZP3, PANX1, TLE6, WEE2, CDC20, BTG4, PADI6, NLRP2, NLRP5, KHDC3L, and REC114) have been reported to be the causes of oocyte maturation arrest, fertilization failure, embryonic arrest, and preimplantation embryonic lethality. These abnormalities mainly have Mendelian inheritance patterns, including both dominant inheritance and recessive inheritance, although in some cases de novo mutations have also appeared. In this review, we will introduce the effects of each gene in the specific processes of human early reproduction and will summarize all known variants in these genes and their corresponding phenotypes. Variants in some genes have specific effects on certain steps in the early human reproductive processes, while other variants result in a spectrum of phenotypes. These variants and genetic markers will lay the foundation for individualized genetic counseling and potential treatments for patients and will be the target for precision treatments in reproductive medicine.
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Affiliation(s)
- Qing Sang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Institutes of Biomedical Sciences, and the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China.
| | - Zhou Zhou
- Institute of Pediatrics, Children's Hospital of Fudan University, the Institutes of Biomedical Sciences, and the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Jian Mu
- Institute of Pediatrics, Children's Hospital of Fudan University, the Institutes of Biomedical Sciences, and the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China
| | - Lei Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Institutes of Biomedical Sciences, and the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200032, China.
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19
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Li J, Ren L, Li M, Yang C, Chen J, Chen Q. Screening of Potential Key Genes Related to Tubal Factor Infertility Based on Competitive Endogenous RNA Network. Genet Test Mol Biomarkers 2021; 25:325-333. [PMID: 34003694 DOI: 10.1089/gtmb.2020.0083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: The molecular biological mechanism of tubal factor infertility (TFI) is still unclear. Long noncoding RNAs (lncRNAs) are considered a major part of the competitive endogenous RNA (ceRNA) network and have attracted growing attention. Our study aimed to explore the regulatory mechanisms of lncRNAs associated with TFI and screen potential key genes related to TFI. Materials and Methods: Differentially expressed lncRNAs (DELs) and differentially expressed genes (DEGs) were identified by comparing normal and TFI expression patterns of lncRNAs and mRNAs in eutopic endometrial tissues obtained from 3 normal and 3 TFI patients during implantation. These data were used to develop a protein-protein interaction (PPI) network of DEGs using the STRING online software. The identified DELs and DEGs were then used to construct a ceRNA network, and the Network Analyzer Tool Kit in Cytoscape was used to analyze the ceRNA network topology and stability. Finally, the overlapping genes present in both the ceRNA and PPI networks were selected as the potential key genes related to TFI. Results: Ninety-six DEGs (59 up and 37 down) and 45 DELs (28 up and 17 down) were identified. Thirty-four DEGs were mapped in a PPI network. A ceRNA network, including two lncRNAs (LINC00305 and DLX6-AS1), four microRNAs (hsa-miR-20b-5p, hsa-miR-17-5p, hsa-miR-107, and hsa-miR-24-3p), and four mRNAs (MAP3K3, HMGB3, FAM103A1, and TMEM209), was successfully constructed. Importantly, a potential key gene (TMEM209) related to TFI was identified. Conclusion: The construction of a ceRNA network related to TFI may help elucidate the regulatory mechanism by which genes and lncRNAs function as ceRNA networks. Importantly, TMEM209 may be further evaluated as potential therapeutic targets for TFI.
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Affiliation(s)
- Junzui Li
- School of Medicine, Xiamen University, Fujian, P.R. China.,First Affiliated Hospital of Xiamen University, Fujian, P.R. China
| | - Lulu Ren
- First Affiliated Hospital of Xiamen University, Fujian, P.R. China
| | - Meina Li
- College of the Environment and Ecology, Xiamen University, Fujian, P.R. China
| | - Cui Yang
- School of Medicine, Xiamen University, Fujian, P.R. China
| | - Jiahao Chen
- School of Medicine, Xiamen University, Fujian, P.R. China
| | - Qionghua Chen
- School of Medicine, Xiamen University, Fujian, P.R. China.,First Affiliated Hospital of Xiamen University, Fujian, P.R. China
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20
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Wartosch L, Schindler K, Schuh M, Gruhn JR, Hoffmann ER, McCoy RC, Xing J. Origins and mechanisms leading to aneuploidy in human eggs. Prenat Diagn 2021; 41:620-630. [PMID: 33860956 PMCID: PMC8237340 DOI: 10.1002/pd.5927] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/02/2021] [Accepted: 02/21/2021] [Indexed: 11/18/2022]
Abstract
The gain or loss of a chromosome-or aneuploidy-acts as one of the major triggers for infertility and pregnancy loss in humans. These chromosomal abnormalities affect more than 40% of eggs in women at both ends of the age spectrum, that is, young girls as well as women of advancing maternal age. Recent studies in human oocytes and embryos using genomics, cytogenetics, and in silico modeling all provide new insight into the rates and potential genetic and cellular factors associated with aneuploidy at varying stages of development. Here, we review recent studies that are shedding light on potential molecular mechanisms of chromosome missegregation in oocytes and embryos across the entire female reproductive life span.
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Affiliation(s)
- Lena Wartosch
- Department of MeiosisMax Planck Institute for Biophysical ChemistryGöttingenGermany
| | - Karen Schindler
- Department of GeneticsRutgers, The State University of New JerseyPiscatawayNew JerseyUSA
- Human Genetics Institute of New JerseyRutgers, The State University of New JerseyPiscatawayNew JerseyUSA
| | - Melina Schuh
- Department of MeiosisMax Planck Institute for Biophysical ChemistryGöttingenGermany
| | - Jennifer R. Gruhn
- DNRF Center for Chromosome StabilityDepartment of Cellular and Molecular MedicineFaculty of Health and Medical SciencesUniversity of CopenhagenDenmark
| | - Eva R. Hoffmann
- DNRF Center for Chromosome StabilityDepartment of Cellular and Molecular MedicineFaculty of Health and Medical SciencesUniversity of CopenhagenDenmark
| | - Rajiv C. McCoy
- Department of BiologyJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Jinchuan Xing
- Department of GeneticsRutgers, The State University of New JerseyPiscatawayNew JerseyUSA
- Human Genetics Institute of New JerseyRutgers, The State University of New JerseyPiscatawayNew JerseyUSA
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21
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Cao Q, Zhao C, Wang C, Cai L, Xia M, Zhang X, Han J, Xu Y, Zhang J, Ling X, Ma X, Huo R. The Recurrent Mutation in PATL2 Inhibits Its Degradation Thus Causing Female Infertility Characterized by Oocyte Maturation Defect Through Regulation of the Mos-MAPK Pathway. Front Cell Dev Biol 2021; 9:628649. [PMID: 33614659 PMCID: PMC7890943 DOI: 10.3389/fcell.2021.628649] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/12/2021] [Indexed: 02/02/2023] Open
Abstract
PAT1 homolog 2 (PATL2), encoding an RNA-binding protein, is a repressor involved in the translational regulation of maternal mRNAs during oocyte maturation. Previous studies have reported mutations in PATL2 those led to female infertility with oocyte maturation arrest; however, the mechanisms by which mutations affected meiotic maturation remained unclear. Here, we identified several novel and recurrent mutations of PATL2 in patients with similar phenotype, and chose the missense mutation c.649 T>A p.Tyr217Asn in PATL2 (PATL2Y217N) as a typical to investigate the underlying mechanisms. We confirmed that this mutation disturbed oocyte maturation and observed morphological defects of large polar body, symmetrical division and abnormal spindle after microinjection of corresponding mutated mRNA. We further evaluated the effect of the PATL2Y217N mutation in 293T cells, and found this mutation decreased the ubiquitination level and degradation of PATL2. Then, abnormally increased PATL2 bound mRNAs of Mos, an upstream activator of mitogen activated protein kinase (MAPK), to regulate its translational activity and subsequently impaired MAPK signaling pathway and oocyte meiosis. These results dissented from the previous view that PATL2 mutations reduced their expression and highlight the role of PATL2 in translational regulation of Mos and its association with MAPK signaling pathway during oocyte meiotic maturation.
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Affiliation(s)
- Qiqi Cao
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Chun Zhao
- Department of Reproductive Medicine, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Congjing Wang
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Lingbo Cai
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Meng Xia
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xiaolan Zhang
- Department of Reproductive Medicine, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Jian Han
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Yangyang Xu
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Junqiang Zhang
- Department of Reproductive Medicine, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xiufeng Ling
- Department of Reproductive Medicine, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xiang Ma
- Clinical Center of Reproductive Medicine, State Key Laboratory of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Ran Huo
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China.,Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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22
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Capalbo A, Poli M, Riera-Escamilla A, Shukla V, Kudo Høffding M, Krausz C, Hoffmann ER, Simon C. Preconception genome medicine: current state and future perspectives to improve infertility diagnosis and reproductive and health outcomes based on individual genomic data. Hum Reprod Update 2020; 27:254-279. [PMID: 33197264 DOI: 10.1093/humupd/dmaa044] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/13/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Our genetic code is now readable, writable and hackable. The recent escalation of genome-wide sequencing (GS) applications in population diagnostics will not only enable the assessment of risks of transmitting well-defined monogenic disorders at preconceptional stages (i.e. carrier screening), but also facilitate identification of multifactorial genetic predispositions to sub-lethal pathologies, including those affecting reproductive fitness. Through GS, the acquisition and curation of reproductive-related findings will warrant the expansion of genetic assessment to new areas of genomic prediction of reproductive phenotypes, pharmacogenomics and molecular embryology, further boosting our knowledge and therapeutic tools for treating infertility and improving women's health. OBJECTIVE AND RATIONALE In this article, we review current knowledge and potential development of preconception genome analysis aimed at detecting reproductive and individual health risks (recessive genetic disease and medically actionable secondary findings) as well as anticipating specific reproductive outcomes, particularly in the context of IVF. The extension of reproductive genetic risk assessment to the general population and IVF couples will lead to the identification of couples who carry recessive mutations, as well as sub-lethal conditions prior to conception. This approach will provide increased reproductive autonomy to couples, particularly in those cases where preimplantation genetic testing is an available option to avoid the transmission of undesirable conditions. In addition, GS on prospective infertility patients will enable genome-wide association studies specific for infertility phenotypes such as predisposition to premature ovarian failure, increased risk of aneuploidies, complete oocyte immaturity or blastocyst development failure, thus empowering the development of true reproductive precision medicine. SEARCH METHODS Searches of the literature on PubMed Central included combinations of the following MeSH terms: human, genetics, genomics, variants, male, female, fertility, next generation sequencing, genome exome sequencing, expanded carrier screening, secondary findings, pharmacogenomics, controlled ovarian stimulation, preconception, genetics, genome-wide association studies, GWAS. OUTCOMES Through PubMed Central queries, we identified a total of 1409 articles. The full list of articles was assessed for date of publication, limiting the search to studies published within the last 15 years (2004 onwards due to escalating research output of next-generation sequencing studies from that date). The remaining articles' titles were assessed for pertinence to the topic, leaving a total of 644 articles. The use of preconception GS has the potential to identify inheritable genetic conditions concealed in the genome of around 4% of couples looking to conceive. Genomic information during reproductive age will also be useful to anticipate late-onset medically actionable conditions with strong genetic background in around 2-4% of all individuals. Genetic variants correlated with differential response to pharmaceutical treatment in IVF, and clear genotype-phenotype associations are found for aberrant sperm types, oocyte maturation, fertilization or pre- and post-implantation embryonic development. All currently known capabilities of GS at the preconception stage are reviewed along with persisting and forthcoming barriers for the implementation of precise reproductive medicine. WIDER IMPLICATIONS The expansion of sequencing analysis to additional monogenic and polygenic traits may enable the development of cost-effective preconception tests capable of identifying underlying genetic causes of infertility, which have been defined as 'unexplained' until now, thus leading to the development of a true personalized genomic medicine framework in reproductive health.
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Affiliation(s)
- Antonio Capalbo
- Igenomix Italy, Marostica, Italy.,Igenomix Foundation, INCLIVA, Valencia, Spain
| | | | - Antoni Riera-Escamilla
- Andrology Department, Fundació Puigvert, Universitat Autònoma de Barcelona, Instituto de Investigaciones Biomédicas Sant Pau (IIB-Sant Pau), Barcelona, Spain
| | - Vallari Shukla
- Department of Cellular and Molecular Medicine, DRNF Center for Chromosome Stability, University of Copenhagen, Copenhagen, Denmark
| | - Miya Kudo Høffding
- Department of Cellular and Molecular Medicine, DRNF Center for Chromosome Stability, University of Copenhagen, Copenhagen, Denmark
| | - Csilla Krausz
- Andrology Department, Fundació Puigvert, Universitat Autònoma de Barcelona, Instituto de Investigaciones Biomédicas Sant Pau (IIB-Sant Pau), Barcelona, Spain.,Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Centre of Excellence DeNothe, University of Florence, Florence, Italy
| | - Eva R Hoffmann
- Department of Cellular and Molecular Medicine, DRNF Center for Chromosome Stability, University of Copenhagen, Copenhagen, Denmark
| | - Carlos Simon
- Igenomix Foundation, INCLIVA, Valencia, Spain.,Department of Obstetrics and Gynecology, University of Valencia, Valencia, Spain.,Department of Obstetrics and Gynecology BIDMC, Harvard University, Cambridge, MA, USA
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23
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Okutman Ö, Demirel C, Tülek F, Pfister V, Büyük U, Muller J, Charlet-Berguerand N, Viville S. Homozygous Splice Site Mutation in ZP1 Causes Familial Oocyte Maturation Defect. Genes (Basel) 2020; 11:genes11040382. [PMID: 32244758 PMCID: PMC7231235 DOI: 10.3390/genes11040382] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/24/2020] [Accepted: 03/26/2020] [Indexed: 12/19/2022] Open
Abstract
In vitro fertilization (IVF) involves controlled ovarian hyperstimulation using hormones to produce large numbers of oocytes. The success of IVF is tightly linked to the availability of mature oocytes. In most cases, about 70% to 80% of the oocytes are mature at the time of retrieval, however, in rare instances, all of them may be immature, implying that they were not able to reach the metaphase II (MII) stage. The failure to obtain any mature oocytes, despite a well conducted ovarian stimulation in repeated cycles is a very rare cause of primary female infertility, for which the underlying suspected genetic factors are still largely unknown. In this study, we present the whole exome sequencing analysis of a consanguineous Turkish family comprising three sisters with a recurrent oocyte maturation defect. Analysis of the data reveals a homozygous splice site mutation (c.1775-3C>A) in the zona pellucida glycoprotein 1 (ZP1) gene. Minigene experiments show that the mutation causes the retention of the intron 11 sequence between exon 11 and exon 12, resulting in a frameshift and the likely production of a truncated protein.
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Affiliation(s)
- Özlem Okutman
- Institut de Parasitologie et Pathologie Tropicale, EA 7292, Fédération de Médecine Translationelle (IPPTS), Université de Strasbourg, 3 rue Koeberlé, 67000 Strasbourg, France;
- Laboratoire de Diagnostic Génétique, UF3472-génétique de l’infertilité, Hôpitaux Universitaires de Strasbourg, 67000 Strasbourg, France
| | - Cem Demirel
- Memorial Atasehir Hospital, In Vitro Fertilization (IVF) Andrology and Genetics Center, Kucukbakkalkoy mh.Vedat Gunyol cd No:28-30, 34758 Atasehir/Istanbul, Turkey; (C.D.); (F.T.)
| | - Firat Tülek
- Memorial Atasehir Hospital, In Vitro Fertilization (IVF) Andrology and Genetics Center, Kucukbakkalkoy mh.Vedat Gunyol cd No:28-30, 34758 Atasehir/Istanbul, Turkey; (C.D.); (F.T.)
| | - Veronique Pfister
- Médecine Translationnelle et Neurogénétique, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Institut National de Santé et de Recherche Médicale (INSERM), U964/Centre National de Recherche Scientifique (CNRS) UMR 7104, Université de Strasbourg, 67404 Illkirch, France; (V.P.); (N.C.-B.)
| | - Umut Büyük
- Hibrigen Biotechnology R&D Industry and Trade Ltd. Co.,Tubitak MAM Teknoloji Serbest Bolgesi, Baris SB Mh 5002.sk Yeni Tek. Binasi ABlok 4, A/101 Gebze/Kocaeli, Turkey;
| | - Jean Muller
- Laboratoire de Diagnostic Génétique, Hôpitaux Universitaires de Strasbourg, 67000 Strasbourg, France;
- Laboratoire de Génétique Médicale, INSERM U1112, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, 67000 Strasbourg, France
| | - Nicolas Charlet-Berguerand
- Médecine Translationnelle et Neurogénétique, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Institut National de Santé et de Recherche Médicale (INSERM), U964/Centre National de Recherche Scientifique (CNRS) UMR 7104, Université de Strasbourg, 67404 Illkirch, France; (V.P.); (N.C.-B.)
| | - Stéphane Viville
- Institut de Parasitologie et Pathologie Tropicale, EA 7292, Fédération de Médecine Translationelle (IPPTS), Université de Strasbourg, 3 rue Koeberlé, 67000 Strasbourg, France;
- Laboratoire de Diagnostic Génétique, UF3472-génétique de l’infertilité, Hôpitaux Universitaires de Strasbourg, 67000 Strasbourg, France
- Correspondence:
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