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Cao L, He X, Ren J, Wen C, Guo T, Yang F, Qin Y, Chen ZJ, Zhao S, Yang Y. Novel compound heterozygous variants in FANCI cause premature ovarian insufficiency. Hum Genet 2024; 143:357-369. [PMID: 38483614 DOI: 10.1007/s00439-024-02650-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/25/2024] [Indexed: 04/25/2024]
Abstract
Premature ovarian insufficiency (POI) is a common reproductive aging disorder due to a dramatic decline of ovarian function before 40 years of age. Accumulating evidence reveals that genetic defects, particularly those related to DNA damage response, are a crucial contributing factor to POI. We have demonstrated that the functional Fanconi anemia (FA) pathway maintains the rapid proliferation of primordial germ cells to establish a sufficient reproductive reserve by counteracting replication stress, but the clinical implications of this function in human ovarian function remain to be established. Here, we screened the FANCI gene, which encodes a key component for FA pathway activation, in our whole-exome sequencing database of 1030 patients with idiopathic POI, and identified two pairs of novel compound heterozygous variants, c.[97C > T];[1865C > T] and c.[158-2A > G];[c.959A > G], in two POI patients, respectively. The missense variants did not alter FANCI protein expression and nuclear localization, apart from the variant c.158-2A > G causing abnormal splicing and leading to a truncated mutant p.(S54Pfs*5). Furthermore, the four variants all diminished FANCD2 ubiquitination levels and increased DNA damage under replication stress, suggesting that the FANCI variants impaired FA pathway activation and replication stress response. This study first links replication stress response defects with the pathogenesis of human POI, providing a new insight into the essential roles of the FA genes in ovarian function.
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Affiliation(s)
- Lili Cao
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China
| | - Xinmiao He
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China
| | - Jiayi Ren
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China
| | - Canxin Wen
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China
| | - Ting Guo
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China
| | - Fan Yang
- Advanced Medical Research Institute, Meili Lake Translational Research Park, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, Shandong, China
| | - Yingying Qin
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China
| | - Zi-Jiang Chen
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China
- Department of Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200135, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200135, China
| | - Shidou Zhao
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China.
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China.
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China.
| | - Yajuan Yang
- Institute of Women, Children and Reproductive Health, Shandong University, #44 Wenhua Xi Road, Jinan, 250012, Shandong, China.
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, Shandong, China.
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China.
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Yang X, Ren S, Yang J, Pan Y, Zhou Z, Chen Q, Fang Y, Shang L, Zhang F, Zhang X, Wu Y. Rare variants in FANCJ induce premature ovarian insufficiency in humans and mice. J Genet Genomics 2024; 51:252-255. [PMID: 37062450 DOI: 10.1016/j.jgg.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/20/2023] [Accepted: 03/29/2023] [Indexed: 04/18/2023]
Affiliation(s)
- Xi Yang
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Human Phenome Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China
| | - Shuting Ren
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Human Phenome Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China
| | - Jialin Yang
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Human Phenome Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China
| | - Yuncheng Pan
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Human Phenome Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China
| | - Zixue Zhou
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Human Phenome Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China
| | - Qing Chen
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Human Phenome Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China
| | - Yunzheng Fang
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Human Phenome Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China
| | - Lingyue Shang
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Human Phenome Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China
| | - Feng Zhang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, State Key Laboratory of Genetic Engineering at School of Life Sciences, Fudan University, Shanghai 200011, China; Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai 201203, China.
| | - Xiaojin Zhang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai 200011, China.
| | - Yanhua Wu
- State Key Laboratory of Genetic Engineering at School of Life Sciences, Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200438, China; National Demonstration Center for Experimental Biology Education, School of Life Sciences, Fudan University, Shanghai 200433, China.
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Dias Nunes J, Demeestere I, Devos M. BRCA Mutations and Fertility Preservation. Int J Mol Sci 2023; 25:204. [PMID: 38203374 PMCID: PMC10778779 DOI: 10.3390/ijms25010204] [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: 11/28/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Hereditary cancers mostly affect the adolescent and young adult population (AYA) at reproductive age. Mutations in BReast CAncer (BRCA) genes are responsible for the majority of cases of hereditary breast and ovarian cancer. BRCA1 and BRCA2 act as tumor suppressor genes as they are key regulators of DNA repair through homologous recombination. Evidence of the accumulation of DNA double-strand break has been reported in aging oocytes, while BRCA expression decreases, leading to the hypothesis that BRCA mutation may impact fertility. Moreover, patients exposed to anticancer treatments are at higher risk of fertility-related issues, and BRCA mutations could exacerbate the treatment-induced depletion of the ovarian reserve. In this review, we summarized the functions of both genes and reported the current knowledge on the impact of BRCA mutations on ovarian ageing, premature ovarian insufficiency, female fertility preservation strategies and insights about male infertility. Altogether, this review provides relevant up-to-date information on the impact of BRCA1/2 mutations on fertility. Notably, BRCA-mutated patients should be adequately counselled for fertility preservation strategies, considering their higher sensitivity to chemotherapy gonadotoxic effects.
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Affiliation(s)
- Joana Dias Nunes
- Research Laboratory on Human Reproduction, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium; (J.D.N.); (M.D.)
| | - Isabelle Demeestere
- Research Laboratory on Human Reproduction, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium; (J.D.N.); (M.D.)
- Fertility Clinic, HUB-Erasme Hospital, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium
| | - Melody Devos
- Research Laboratory on Human Reproduction, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium; (J.D.N.); (M.D.)
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Zhao J, Zhang Y, Li W, Yao M, Liu C, Zhang Z, Wang C, Wang X, Meng K. Research progress of the Fanconi anemia pathway and premature ovarian insufficiency†. Biol Reprod 2023; 109:570-585. [PMID: 37669135 DOI: 10.1093/biolre/ioad110] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 08/25/2023] [Accepted: 09/02/2023] [Indexed: 09/07/2023] Open
Abstract
The Fanconi anemia pathway is a key pathway involved in the repair of deoxyribonucleic acidinterstrand crosslinking damage, which chiefly includes the following four modules: lesion recognition, Fanconi anemia core complex recruitment, FANCD2-FANCI complex monoubiquitination, and downstream events (nucleolytic incision, translesion synthesis, and homologous recombination). Mutations or deletions of multiple Fanconi anemia genes in this pathway can damage the interstrand crosslinking repair pathway and disrupt primordial germ cell development and oocyte meiosis, thereby leading to abnormal follicular development. Premature ovarian insufficiency is a gynecological clinical syndrome characterized by amenorrhea and decreased fertility due to decreased oocyte pool, accelerated follicle atresia, and loss of ovarian function in women <40 years old. Furthermore, in recent years, several studies have detected mutations in the Fanconi anemia gene in patients with premature ovarian insufficiency. In addition, some patients with Fanconi anemia exhibit symptoms of premature ovarian insufficiency and infertility. The Fanconi anemia pathway and premature ovarian insufficiency are closely associated.
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Affiliation(s)
- Jingyu Zhao
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Yixin Zhang
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Wenbo Li
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Mengmeng Yao
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Chuqi Liu
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Zihan Zhang
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Caiqin Wang
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Xiaomei Wang
- College of Basic Medicine, Jining Medical University, Jining, China
| | - Kai Meng
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- Lin He's Academician Workstation of New Medicine and Clinical Translation, Jining Medical University, Jining, China
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Xu W, Yang Y, Yu Y, Wen C, Zhao S, Cao L, Zhao S, Qin Y, Chen ZJ. FAAP100 is required for the resolution of transcription-replication conflicts in primordial germ cells. BMC Biol 2023; 21:174. [PMID: 37580696 PMCID: PMC10426154 DOI: 10.1186/s12915-023-01676-1] [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: 02/01/2023] [Accepted: 08/03/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND The maintenance of genome stability in primordial germ cells (PGCs) is crucial for the faithful transmission of genetic information and the establishment of reproductive reserve. Numerous studies in recent decades have linked the Fanconi anemia (FA) pathway with fertility, particularly PGC development. However, the role of FAAP100, an essential component of the FA core complex, in germ cell development is unexplored. RESULTS We find that FAAP100 plays an essential role in R-loop resolution and replication fork protection to counteract transcription-replication conflicts (TRCs) during mouse PGC proliferation. FAAP100 deletion leads to FA pathway inactivation, increases TRCs as well as cotranscriptional R-loops, and contributes to the collapse of replication forks and the generation of DNA damage. Then, the activated p53 signaling pathway triggers PGC proliferation defects, ultimately resulting in insufficient establishment of reproductive reserve in both sexes of mice. CONCLUSIONS Our findings suggest that FAAP100 is required for the resolution of TRCs in PGCs to safeguard their genome stability.
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Affiliation(s)
- Weiwei Xu
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Yajuan Yang
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Yongze Yu
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Canxin Wen
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Simin Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Lili Cao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Shidou Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
| | - Yingying Qin
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, Shandong, China.
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200135, China.
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200135, China.
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Zhou Z, Yin H, Suye S, Ren Z, Yan L, Shi L, Fu C. Fance deficiency inhibits primordial germ cell proliferation associated with transcription-replication conflicts accumulate and DNA repair defects. J Ovarian Res 2023; 16:160. [PMID: 37563658 PMCID: PMC10416540 DOI: 10.1186/s13048-023-01252-9] [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: 06/06/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023] Open
Abstract
Fanconi anemia (FA) gene mutations are critical components in the genetic etiology of premature ovarian insufficiency (POI). Fance-/- mice detected meiotic arrest of primordial germ cells (PGCs) as early as embryonic day (E) 13.5 and exhibited decreased ovarian reserve after birth. However, the mechanism of Fance defect leading to dysgenesis of PGCs is unclear. We aimed to explore the effect of Fance defects on mitotic proliferation of PGCs. Combined with transcriptomic sequencing and validation, we examined the effect of Fance defects on cell cycle, transcription-replication conflicts (TRCs), and multiple DNA repair pathways in PGCs during active DNA replication at E11.5 and E12.5. Results showed Fance defects cause decreased numbers of PGCs during rapid mitosis at E11.5 and E12.5. Mitotic cell cycle progression of Fance-/- PGCs was blocked at E11.5 and E12.5, shown by decreased cell proportions in S and G2 phases and increased cell proportions in M phase. RNA-seq suggested the mechanisms involved in DNA replication and repair. We found Fance-/- PGCs accumulate TRCs during active DNA replication at E11.5 and E12.5. Fance-/- PGCs down-regulate multiple DNA repair pathways at E11.5 and E12.5 including the FA pathway, homologous recombination (HR) pathway, and base excision repair (BER) pathway. In conclusion, Fance defect impaired the mitotic proliferation of PGCs leading to rapidly decreased numbers and abnormal cell cycle distribution. Proliferation inhibition of Fance-/- PGCs was associated with accumulated TRCs and down-regulation of FA, HR, BER pathways. These provided a theoretical basis for identifying the inherited etiology and guiding potential fertility management for POI.
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Affiliation(s)
- Zhixian Zhou
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, 410000, China
| | - Huan Yin
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, 410000, China
| | - Suye Suye
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, 410000, China
| | - Zhen Ren
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, 410000, China
| | - Lei Yan
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, 410000, China
| | - Liye Shi
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, 410000, China
| | - Chun Fu
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha, 410000, China.
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7
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Cermisoni GC, Pisaturo V, Vanni VS, Minetto S, Pagliardini L, Masciangelo R, Candiani M, Papaleo E, Alteri A. Fertility Preservation as an Option for Women with Genetic Disorders: Insights from a SWOT Analysis on Elective Oocyte Freezing and Preimplantation Genetic Testing. Life (Basel) 2023; 13:1483. [PMID: 37511857 PMCID: PMC10381289 DOI: 10.3390/life13071483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/09/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
This paper uses a SWOT (strengths, weaknesses, opportunities, and threats) analysis to overview the option of fertility preservation in women with genetic diseases, who would later use preimplantation genetic testing for monogenic disorders, in order to not transmit their condition. Strengths associated with elective oocyte freezing are ethical considerations, overall maternal and fetal safety, and effectiveness, if performed at <35 years of age. Weaknesses are related to costs and rare but present (<1-3%) risks of maternal complications. Counselling on fertility management aimed at preventing infertility offers a valuable opportunity, the same as it has been in oncological patients' care. The potentially high percentage of women with genetic conditions who would return to use their frozen oocytes also represents an opportunity together with the minimization of the need for egg donation, which has higher obstetrical risks compared to the use of autologous oocytes. Finally, a threat is represented by the potential psychological distress to young women who could never attempt to become pregnant through preimplantation genetic testing, or do it before any decline in their fertility. Potential unknown future long-term health risks for children conceived after egg vitrification/thawing are also a threat, but current knowledge is reassuring. Altogether, early counselling on the option of fertility preservation should thus be incorporated into standard care of all patients with any genetic condition.
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Affiliation(s)
- Greta Chiara Cermisoni
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Valerio Pisaturo
- Department of Maternal and Child Health and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I, 00161 Rome, Italy
| | - Valeria Stella Vanni
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Sabrina Minetto
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Luca Pagliardini
- Reproductive Sciences Laboratory, Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy
| | - Rossella Masciangelo
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Massimo Candiani
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Enrico Papaleo
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Alessandra Alteri
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
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8
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Yu Y, Xu W, Wen C, Zhao S, Li G, Liu R, Chen ZJ, Qin Y, Ma J, Yang Y, Zhao S. UBE2T resolves transcription-replication conflicts and protects common fragile sites in primordial germ cells. Cell Mol Life Sci 2023; 80:92. [PMID: 36928776 PMCID: PMC11072727 DOI: 10.1007/s00018-023-04733-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/04/2023] [Accepted: 02/22/2023] [Indexed: 03/18/2023]
Abstract
The proper development of primordial germ cells (PGCs) is an essential prerequisite for gametogenesis and mammalian fertility. The Fanconi anemia (FA) pathway functions in maintaining the development of PGCs. FANCT/UBE2T serves as an E2 ubiquitin-conjugating enzyme that ubiquitylates the FANCD2-FANCI complex to activate the FA pathway, but its role in the development of PGCs is not clear. In this study, we found that Ube2t knockout mice showed defects in PGC proliferation, leading to severe loss of germ cells after birth. Deletion of UBE2T exacerbated DNA damage and triggered the activation of the p53 pathway. We further demonstrated that UBE2T counteracted transcription-replication conflicts by resolving R-loops and stabilizing replication forks, and also protected common fragile sites by resolving R-loops in large genes and promoting mitotic DNA synthesis to maintain the genome stability of PGCs. Overall, these results provide new insights into the function and regulatory mechanisms of the FA pathway ensuring normal development of PGCs.
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Affiliation(s)
- Yongze Yu
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Weiwei Xu
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Canxin Wen
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Simin Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Guangyu Li
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Ran Liu
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences, Jinan, 250021, Shandong, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200135, China
- Center for Reproductive Medicine, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, 200135, China
| | - Yingying Qin
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Jinlong Ma
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
| | - Yajuan Yang
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
| | - Shidou Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
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9
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Corsini C, Fallara G, Candela L, Raffo M, Pozzi E, Belladelli F, Capogrosso P, Boeri L, Costa A, Schifano N, Cignoli D, Ventimiglia E, D'Arma A, Montorsi F, Salonia A. High serum alpha-fetoprotein levels in primary infertile men. Andrology 2023; 11:86-92. [PMID: 36116018 DOI: 10.1111/andr.13297] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 08/11/2022] [Accepted: 09/09/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Alfa-fetoprotein (AFP) is a serum glycoprotein highly produced during fetal development. While AFP synthesis drops dramatically after birth, AFP production only persists or returns under specific pathological condition. OBJECTIVE We sought to investigate the rate of and the potential meaning of high AFP serum levels in men seeking first medical attention for couple's primary infertility. MATERIALS AND METHODS Socio-demographic and clinical data from 1803 non-Finnish, White-European primary infertile men were retrospectively analysed. AFP was routinely measured in each patient (high AFP was defined as >7 ng/ml). Men with history of liver diseases, testicular cancer, or other known causes of increased AFP levels were excluded from the final analysis. Semen analyses were based on the 2010 World Health Organization reference criteria. Descriptive statistics and logistic regression models tested the association between serum AFP and clinical variables. Possible nonlinear relationships were graphically explored with locally estimated scatterplot smoothing method. RESULTS Overall, high serum AFP level was found in 29 (1.7%) patients. Normal versus high AFP levels patients were comparable in terms of body mass index (BMI), Charlson Comorbidity Index, waist circumference, smoking habits, history of cryptorchidism, testicular volume, and serum hormones (i.e., follicle-stimulating hormone, luteinizing hormone, and total testosterone). Conversely, men with higher AFP levels were older (p = 0.02), had lower sperm concentration (p = 0.003), and were more frequently oligozoospermic and azoospermic (all p ≤ 0.03). At multivariate analysis, high AFP levels were independently associated with oligozoospermia (OR 3.79; p = 0.033) and azoospermia (OR 3.29; p = 0.006). Likewise, if AFP levels increase, patients were found to be older, with higher BMI and to have more comorbidities (all p < 0.05). DISCUSSION Unexplained high AFP levels account for almost 2% of cases in primary infertile patients without a previous history of associated disorders. Higher serum AFP levels are linked with aberrant sperm counts, older age, obesity, and a greater amount of comorbid conditions. CONCLUSION Despite the need for additional validation, these data suggest that serum AFP measurement might have a multifaceted role over the diagnostic work-up of males presenting for couple's infertility.
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Affiliation(s)
- Christian Corsini
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Giuseppe Fallara
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Luigi Candela
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Massimiliano Raffo
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Edoardo Pozzi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Federico Belladelli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Paolo Capogrosso
- Department of Urology and Andrology, Ospedale di Circolo and Macchi Foundation, Varese, Italy
| | - Luca Boeri
- Department of Urology, Foundation IRCCS Ca' Granda - Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Antonio Costa
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Nicolò Schifano
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Institute of Andrology, Department of Urology, University College London Hospitals NHS Trust, London, UK
| | - Daniele Cignoli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Alessia D'Arma
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
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10
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Transcription-replication conflicts in primordial germ cells necessitate the Fanconi anemia pathway to safeguard genome stability. Proc Natl Acad Sci U S A 2022; 119:e2203208119. [PMID: 35969748 PMCID: PMC9407672 DOI: 10.1073/pnas.2203208119] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Germ cells are capable of preserving their genetic information with high fidelity. We report that rapidly dividing mouse primordial germ cells (PGCs) are faced with high levels of endogenous replication stress due to frequent occurrence of transcription–replication conflicts (TRCs). Thus, PGCs have an increased requirement for the replication-coupled Fanconi anemia (FA) pathway to counteract TRC-induced replication stress, enabling their rapid proliferation to establish a sufficient reproductive reserve. This work provides insights into the unique genome feature of developing PGCs and helps to explain the reproductive defects in FA individuals. Preserving a high degree of genome integrity and stability in germ cells is of utmost importance for reproduction and species propagation. However, the regulatory mechanisms of maintaining genome stability in the developing primordial germ cells (PGCs), in which rapid proliferation is coupled with global hypertranscription, remain largely unknown. Here, we find that mouse PGCs encounter a constitutively high frequency of transcription–replication conflicts (TRCs), which lead to R-loop accumulation and impose endogenous replication stress on PGCs. We further demonstrate that the Fanconi anemia (FA) pathway is activated by TRCs and has a central role in the coordination between replication and transcription in the rapidly proliferating PGCs, as disabling the FA pathway leads to TRC and R-loop accumulation, replication fork destabilization, increased DNA damage, dramatic loss of mitotically dividing mouse PGCs, and consequent sterility of both sexes. Overall, our findings uncover the unique source and resolving mechanism of endogenous replication stress during PGC proliferation, provide a biological explanation for reproductive defects in individuals with FA, and improve our understanding of the monitoring strategies for genome stability during germ cell development.
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11
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Peake JD, Noguchi E. Fanconi anemia: current insights regarding epidemiology, cancer, and DNA repair. Hum Genet 2022; 141:1811-1836. [PMID: 35596788 DOI: 10.1007/s00439-022-02462-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 05/09/2022] [Indexed: 12/12/2022]
Abstract
Fanconi anemia is a genetic disorder that is characterized by bone marrow failure, as well as a predisposition to malignancies including leukemia and squamous cell carcinoma (SCC). At least 22 genes are associated with Fanconi anemia, constituting the Fanconi anemia DNA repair pathway. This pathway coordinates multiple processes and proteins to facilitate the repair of DNA adducts including interstrand crosslinks (ICLs) that are generated by environmental carcinogens, chemotherapeutic crosslinkers, and metabolic products of alcohol. ICLs can interfere with DNA transactions, including replication and transcription. If not properly removed and repaired, ICLs cause DNA breaks and lead to genomic instability, a hallmark of cancer. In this review, we will discuss the genetic and phenotypic characteristics of Fanconi anemia, the epidemiology of the disease, and associated cancer risk. The sources of ICLs and the role of ICL-inducing chemotherapeutic agents will also be discussed. Finally, we will review the detailed mechanisms of ICL repair via the Fanconi anemia DNA repair pathway, highlighting critical regulatory processes. Together, the information in this review will underscore important contributions to Fanconi anemia research in the past two decades.
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Affiliation(s)
- Jasmine D Peake
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, 245 N. 15th Street, Philadelphia, PA, 19102, USA
| | - Eishi Noguchi
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, 245 N. 15th Street, Philadelphia, PA, 19102, USA.
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