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Li N, Wang H, Zou S, Yu X, Li J. Perspective in the Mechanisms for Repairing Sperm DNA Damage. Reprod Sci 2024:10.1007/s43032-024-01714-5. [PMID: 39333437 DOI: 10.1007/s43032-024-01714-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Accepted: 09/23/2024] [Indexed: 09/29/2024]
Abstract
DNA damage in spermatozoa is a major cause of male infertility. It is also associated with adverse reproductive outcomes (including reduced fertilization rates, embryo quality and pregnancy rates, and higher rates of spontaneous miscarriage). The damage to sperm DNA occurs during the production and maturation of spermatozoa, as well as during their transit through the male reproductive tract. DNA damage repair typically occurs during spermatogenesis, oocytes after fertilization, and early embryonic development stages. The known mechanisms of sperm DNA repair mainly include nucleotide excision repair (NER), base excision repair (BER), mismatch repair (MMR), and double-strand break repair (DSBR). The most severe type of sperm DNA damage is double-strand break, and it will be repaired by DSBR, including homologous recombination (HR), classical non-homologous end joining (cNHEJ), alternative end joining (aEJ), and single-strand annealing (SSA). However, the precise mechanisms of DNA repair in spermatozoa remain incompletely understood. DNA repair-associated proteins are of great value in the repair of sperm DNA. Several repair-related proteins have been identified as playing critical roles in condensing chromatin, regulating transcription, repairing DNA damage, and regulating the cell cycle. It is noteworthy that XRCC4-like factor (XLF) and paralog of XRCC4 and XLF (PAXX) -mediated dimerization promote the processing of populated ends for cNHEJ repair, which suggests that XLF and PAXX have potential value in the mechanism of sperm DNA repair. This review summarizes the classic and potential repair mechanisms of sperm DNA damage, aiming to provide a perspective for further research on DNA damage repair mechanisms.
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Affiliation(s)
- Nihong Li
- Chengdu Fifth People's Hospital, The Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China
| | - Hong Wang
- Chengdu Fifth People's Hospital, The Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China
| | - Siying Zou
- Chengdu Fifth People's Hospital, The Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China
| | - Xujun Yu
- College of Medicine and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Junjun Li
- Chengdu Fifth People's Hospital, The Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, China.
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2
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Mills M, Emori C, Kumar P, Boucher Z, George J, Bolcun-Filas E. Single-cell and bulk transcriptional profiling of mouse ovaries reveals novel genes and pathways associated with DNA damage response in oocytes. Dev Biol 2024; 517:55-72. [PMID: 39306223 DOI: 10.1016/j.ydbio.2024.09.007] [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: 04/01/2024] [Revised: 09/11/2024] [Accepted: 09/16/2024] [Indexed: 09/25/2024]
Abstract
Immature oocytes enclosed in primordial follicles stored in female ovaries are under constant threat of DNA damage induced by endogenous and exogenous factors. Checkpoint kinase 2 (CHEK2) is a key mediator of the DNA damage response (DDR) in all cells. Genetic studies have shown that CHEK2 and its downstream targets, p53, and TAp63, regulate primordial follicle elimination in response to DNA damage. However, the mechanism leading to their demise is still poorly characterized. Single-cell and bulk RNA sequencing were used to determine the DDR in wild-type and Chek2-deficient ovaries. A low but oocyte-lethal dose of ionizing radiation induces ovarian DDR that is solely dependent on CHEK2. DNA damage activates multiple response pathways related to apoptosis, p53, interferon signaling, inflammation, cell adhesion, and intercellular communication. These pathways are differentially employed by different ovarian cell types, with oocytes disproportionately affected by radiation. Novel genes and pathways are induced by radiation specifically in oocytes, shedding light on their sensitivity to DNA damage, and implicating a coordinated response between oocytes and pregranulosa cells within the follicle. These findings provide a foundation for future studies on the specific mechanisms regulating oocyte survival in the context of aging, therapeutic and environmental genotoxic exposures.
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Affiliation(s)
- Monique Mills
- The Jackson Laboratory, 600 Main Street, Bar Harbor, ME, 04609, USA; The Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, 04469, USA
| | - Chihiro Emori
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan
| | - Parveen Kumar
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, 06110, USA
| | - Zachary Boucher
- The Jackson Laboratory, 600 Main Street, Bar Harbor, ME, 04609, USA
| | - Joshy George
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, 06110, USA
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3
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Winship AL, Alesi LR, Stringer JM, Cao Y, Lewis YM, Tu L, Swindells EOK, Giridharan S, Cai X, Griffiths MJ, Zerafa N, Gilham L, Hickey M, Hutt KJ. Conditional loss of Brca1 in oocytes causes reduced litter size, ovarian reserve depletion and impaired oocyte in vitro maturation with advanced reproductive age in mice. EBioMedicine 2024; 106:105262. [PMID: 39084071 PMCID: PMC11342213 DOI: 10.1016/j.ebiom.2024.105262] [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: 07/02/2023] [Revised: 07/14/2024] [Accepted: 07/16/2024] [Indexed: 08/02/2024] Open
Abstract
BACKGROUND An estimated 1 in 350 women carry germline BRCA1/2 mutations, which confer an increased risk of developing breast and ovarian cancer, and may also contribute to subfertility. All mature, sex steroid-producing ovarian follicles are drawn from the pool of non-renewable primordial follicles, termed the 'ovarian reserve'. The clinical implications of early ovarian reserve exhaustion extend beyond infertility, to include the long-term adverse health consequences of loss of endocrine function and premature menopause. We aimed to determine whether conditional loss of Brca1 in oocytes impacts ovarian follicle numbers, oocyte quality and fertility in mice with advancing maternal age. We also aimed to determine the utility of AMH as a marker of ovarian function, by assessing circulating AMH levels in mice and women with BRCA1/2 mutations, and correlating this with ovarian follicle counts. METHODS In this study, we addressed a longstanding question in the field regarding the functional consequences of BRCA1 inactivation in oocytes. To recapitulate loss of BRCA1 protein function in oocytes, we generated mice with conditional gene deletion of Brca1 in oocytes using Gdf9-Cre recombinase (WT: Brca1fl/flGdf9+/+; cKO: Brca1fl/flGdf9cre/+). FINDINGS While the length of the fertile lifespan was not altered between groups after a comprehensive breeding trial, conditional loss of Brca1 in oocytes led to reduced litter size in female mice. Brca1 cKO animals had a reduced ovarian reserve and oocyte maturation was impaired with advanced maternal age at postnatal day (PN)300, compared to WT animals. Serum anti-Müllerian hormone (AMH) concentrations (the gold-standard indirect marker of the ovarian reserve used in clinical practice) were not predictive of reduced primordial follicle number in Brca1 cKO mice versus WT. Furthermore, we found no correlation between follicle number or density and serum AMH concentrations in matched samples from a small cohort of premenopausal women with BRCA1/2 mutations. INTERPRETATION Together, our data demonstrate that BRCA1 is a key regulator of oocyte number and quality in females and suggest that caution should be used in relying on AMH as a reliable marker of the ovarian reserve in this context. FUNDING This work was made possible through Victorian State Government Operational Infrastructure Support and Australian Government NHMRC IRIISS. This work was supported by funding from the Australian Research Council (ALW - DE21010037 and KJH - FT190100265), as well as the National Breast Cancer Foundation (IIRS-22-092) awarded to ALW and KJH. LRA, YML, LT, EOKS and MG were supported by Australian Government Research Training Program Scholarships. LRA, YML and LT were also supported by a Monash Graduate Excellence Scholarship. YC, SG and XC were supported by Monash Biomedicine Discovery Institute PhD Scholarships. LRA was also supported by a Monash University ECPF24-6809920940 Fellowship. JMS was supported by NHMRC funding (2011299). MH was supported by an NHMRC Investigator Grant (1193838).
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Affiliation(s)
- Amy L Winship
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia.
| | - Lauren R Alesi
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Jessica M Stringer
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Yujie Cao
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Yasmin M Lewis
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Lisa Tu
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Elyse O K Swindells
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Saranya Giridharan
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Xuebi Cai
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Meaghan J Griffiths
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia; University of Edinburgh, MRC Centre for Reproductive Health, Queens Medical Research Institute, Edinburgh, UK
| | - Nadeen Zerafa
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia
| | - Leslie Gilham
- Breast Cancer Network Australia and Breast Cancer Trials Australia, Camberwell, VIC, Australia
| | - Martha Hickey
- Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia; Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia
| | - Karla J Hutt
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash University, Clayton, VIC, Australia.
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Liu MH, Costa BM, Bianchini EC, Choi U, Bandler RC, Lassen E, Grońska-Pęski M, Schwing A, Murphy ZR, Rosenkjær D, Picciotto S, Bianchi V, Stengs L, Edwards M, Nunes NM, Loh CA, Truong TK, Brand RE, Pastinen T, Wagner JR, Skytte AB, Tabori U, Shoag JE, Evrony GD. DNA mismatch and damage patterns revealed by single-molecule sequencing. Nature 2024; 630:752-761. [PMID: 38867045 PMCID: PMC11216816 DOI: 10.1038/s41586-024-07532-8] [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: 02/19/2023] [Accepted: 05/07/2024] [Indexed: 06/14/2024]
Abstract
Mutations accumulate in the genome of every cell of the body throughout life, causing cancer and other diseases1,2. Most mutations begin as nucleotide mismatches or damage in one of the two strands of the DNA before becoming double-strand mutations if unrepaired or misrepaired3,4. However, current DNA-sequencing technologies cannot accurately resolve these initial single-strand events. Here we develop a single-molecule, long-read sequencing method (Hairpin Duplex Enhanced Fidelity sequencing (HiDEF-seq)) that achieves single-molecule fidelity for base substitutions when present in either one or both DNA strands. HiDEF-seq also detects cytosine deamination-a common type of DNA damage-with single-molecule fidelity. We profiled 134 samples from diverse tissues, including from individuals with cancer predisposition syndromes, and derive from them single-strand mismatch and damage signatures. We find correspondences between these single-strand signatures and known double-strand mutational signatures, which resolves the identity of the initiating lesions. Tumours deficient in both mismatch repair and replicative polymerase proofreading show distinct single-strand mismatch patterns compared to samples that are deficient in only polymerase proofreading. We also define a single-strand damage signature for APOBEC3A. In the mitochondrial genome, our findings support a mutagenic mechanism occurring primarily during replication. As double-strand DNA mutations are only the end point of the mutation process, our approach to detect the initiating single-strand events at single-molecule resolution will enable studies of how mutations arise in a variety of contexts, especially in cancer and ageing.
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Affiliation(s)
- Mei Hong Liu
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | - Benjamin M Costa
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | - Emilia C Bianchini
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | - Una Choi
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | - Rachel C Bandler
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
| | - Emilie Lassen
- Cryos International Sperm and Egg Bank, Aarhus, Denmark
| | - Marta Grońska-Pęski
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | - Adam Schwing
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | - Zachary R Murphy
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | | | - Shany Picciotto
- Department of Urology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Vanessa Bianchi
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Lucie Stengs
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Melissa Edwards
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Nuno Miguel Nunes
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Caitlin A Loh
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | - Tina K Truong
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
| | - Randall E Brand
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Tomi Pastinen
- Genomic Medicine Center, Children's Mercy Kansas City, Kansas City, MO, USA
| | - J Richard Wagner
- Department of Nuclear Medicine and Radiobiology, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | | | - Uri Tabori
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Haematology/Oncology, Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jonathan E Shoag
- Department of Urology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Gilad D Evrony
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, New York, NY, USA.
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA.
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5
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Baur J, Koppik M, Savković U, Đorđević M, Stojkovic B, Berger D. Coevolution of longevity and female germline maintenance. Proc Biol Sci 2024; 291:20240532. [PMID: 38864321 PMCID: PMC11338575 DOI: 10.1098/rspb.2024.0532] [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: 11/24/2023] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 06/13/2024] Open
Abstract
An often-overlooked aspect of life-history optimization is the allocation of resources to protect the germline and secure safe transmission of genetic information. While failure to do so renders significant fitness consequences in future generations, germline maintenance comes with substantial costs. Thus, germline allocation should trade off with other life-history decisions and be optimized in accordance with an organism's reproductive schedule. Here, we tested this hypothesis by studying germline maintenance in lines of seed beetle, selected for early (E) or late (L) reproduction for 350 and 240 generations, respectively. Female animals provide maintenance and screening of male gametes in their reproductive tract and oocytes. Here, we reveal the ability of young and aged E- and L-females to provide this form of germline maintenance by mating them to males with ejaculates with artificially elevated levels of protein and DNA damage. We find that germline maintenance in E-females peaks at young age and then declines, while the opposite is true for L-females, in accordance with the age of reproduction in the respective regime. These findings identify the central role of allocation to secure germline integrity in life-history evolution and highlight how females can play a crucial role in mitigating the effects of male germline decisions on mutation rate and offspring quality.
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Affiliation(s)
- Julian Baur
- Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden
| | - Mareike Koppik
- Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden
- Animal Ecology, Department of Zoology, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Uroš Savković
- Department of Evolutionary Biology, Institute for Biological Research “Siniša Stanković”, National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, Belgrade11000, Serbia
| | - Mirko Đorđević
- Department of Evolutionary Biology, Institute for Biological Research “Siniša Stanković”, National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, Belgrade11000, Serbia
| | - Biljana Stojkovic
- Institute of Zoology, Chair of Genetics and Evolution, Faculty of Biology, Studentski trg 16, 11000 Belgrade, Serbia
| | - David Berger
- Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden
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Khajedehi N, Fathi R, Akbarinejad V, Gourabi H. Oocyte Vitrification Reduces its Capability to Repair Sperm DNA Fragmentation and Impairs Embryonic Development. Reprod Sci 2024; 31:1256-1267. [PMID: 38151654 DOI: 10.1007/s43032-023-01419-1] [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: 08/28/2023] [Accepted: 11/29/2023] [Indexed: 12/29/2023]
Abstract
Oocytes play a crucial role in repairing sperm DNA damage, which can affect the next generation; however, certain factors can impair this ability. This study examined whether oocyte vitrification, a widely used method for fertility preservation, negatively affects repair ability. Male DBA/2 mice (n = 28) were injected with 101.60 µmol/100 g body weight of tert-Butyl hydroperoxide (tBHP) for 14 days to induce sperm DNA damage. Histological changes, sperm functions, and DNA fragmentation were assessed using the TUNEL assay. Cumulus-oocyte-complexes (COCs) of superovulated female DBA/2 mice (n = 28) were vitrified using the Cryotop method. Fresh and vitrified oocytes were then fertilized by tBHP-treated and untreated sperms, and subsequent embryonic development was monitored. Additionally, the expression of Mre11a, Rad51, Brca1, and Xrcc4 was assessed in resulting zygotes and blastocysts using real-time PCR. The sperm tBHP treatment reduced differentiated spermatogenic cells in the testicular tissue, sperm concentration, and motility, while increasing DNA fragmentation (P < 0.05). The fertilization rate was decreased in the tBHP-treated sperm-vitrified oocyte group (P < 0.05), and the two-cell rate diminished in tBHP-treated sperm-fresh and vitrified oocyte groups (P < 0.05). The four-cell to blastocyst rate decreased in the untreated sperm-vitrified oocyte and the tBHP-treated sperm-fresh and vitrified oocyte groups (P < 0.05), and the tBHP-treated sperm-vitrified oocyte groups had the lowest blastocyst rate. In zygotes, Brca1 was upregulated in the tBHP-treated sperm-vitrified oocyte group (P < 0.05). Also, in blastocysts, Rad51, Brca1, and Xrcc4 were significantly upregulated in the untreated sperm-vitrified oocytes group (P < 0.05). Damages to the oocyte due to vitrification can disrupt the repair of sperm DNA fragmentation and consequently impair the embryo development.
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Affiliation(s)
- Niloofar Khajedehi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Rouhollah Fathi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
| | - Vahid Akbarinejad
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Hamid Gourabi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
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7
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Yang Q, Yu H, Li Q. Comparative Transcriptome Analysis Reveals the Role of Ribosome Reduction in Impeding Oogenesis in Female Triploid Crassostrea Gigas. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:125-135. [PMID: 38217752 DOI: 10.1007/s10126-024-10283-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024]
Abstract
The fecundity of triploid female Crassostrea gigas exhibited significant variation and was lower compared to diploid individuals. Previous studies categorized mature stage triploid female C. gigas into two groups: female α, characterized by a high number of oocytes, and female β, displaying few or no oocytes. To investigate the molecular mechanisms underlying irregular oogenesis and fecundity differences in triploid C. gigas, we performed a comparative analysis of gonad transcriptomes at different stages of gonadal development, including female α, female β, and diploids. During early oogenesis, functional enrichment analysis between female diploids and putative female β triploids revealed differently expressed genes (DEGs) in the ribosome and ribosome biogenesis pathways. Expression levels of DEGs in these pathways were significantly decreased in the putative female β triploid, suggesting a potential role of reduced ribosome levels in obstructing triploid oogenesis. Moreover, to identify regulatory pathways in gonad development, female oysters at the early and mature stages were compared. The DNA repair and recombination proteins pathways were enriched in female diploids and female α triploids but absent in female β triploids. Overall, we propose that decreased ribosome biogenesis in female triploids hinders the differentiation of germ stem cells, leading to the formation of a large number of abnormal germ cells and ultimately resulting in reduced fecundity. The variation in fertility among triploids appeared to be related to the degree of DNA damage repair during female gonad development. This study offers valuable insights into the oogenesis process in female triploid C. gigas.
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Affiliation(s)
- Qiong Yang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Hong Yu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
| | - Qi Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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8
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Leem J, Lee C, Choi DY, Oh JS. Distinct characteristics of the DNA damage response in mammalian oocytes. Exp Mol Med 2024; 56:319-328. [PMID: 38355825 PMCID: PMC10907590 DOI: 10.1038/s12276-024-01178-2] [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: 08/20/2023] [Revised: 11/15/2023] [Accepted: 12/07/2023] [Indexed: 02/16/2024] Open
Abstract
DNA damage is a critical threat that poses significant challenges to all cells. To address this issue, cells have evolved a sophisticated molecular and cellular process known as the DNA damage response (DDR). Among the various cell types, mammalian oocytes, which remain dormant in the ovary for extended periods, are particularly susceptible to DNA damage. The occurrence of DNA damage in oocytes can result in genetic abnormalities, potentially leading to infertility, birth defects, and even abortion. Therefore, understanding how oocytes detect and repair DNA damage is of paramount importance in maintaining oocyte quality and preserving fertility. Although the fundamental concept of the DDR is conserved across various cell types, an emerging body of evidence reveals striking distinctions in the DDR between mammalian oocytes and somatic cells. In this review, we highlight the distinctive characteristics of the DDR in oocytes and discuss the clinical implications of DNA damage in oocytes.
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Affiliation(s)
- Jiyeon Leem
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Crystal Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Da Yi Choi
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Jeong Su Oh
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea.
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Dong R, Abazarikia A, Luan Y, Yu SY, Kim SY. Molecular Mechanisms Determining Mammalian Oocyte Quality with the Treatment of Cancer Therapy. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2024; 238:97-119. [PMID: 39030356 DOI: 10.1007/978-3-031-55163-5_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
Cancer is a global public health issue and remains one of the leading causes of death in the United States (Siegel et al. CA Cancer J Clin. 72:7-33, 2022). It is estimated in the US in 2022, about 935,000 new cases of cancer will be diagnosed in women, and the probability of developing invasive cancer is 5.8% for females younger than 50 years old (Siegel et al. CA Cancer J Clin. 72:7-33, 2022). However, advances in screening programs, diagnostic methods, and therapeutic options have greatly increased the five-year survival rate in reproductive-age women with a variety of cancers. Given the clinical consequences of gonadotoxic cancer therapies, young, female cancer survivors may face compromised fertility, premature ovarian insufficiency, early-onset menopause, and endocrine dysregulation (Bedoschi et al. Future Oncol. 12:2333-44, 2016). Gonadotoxic side effects may include decreased oocyte quality within surviving follicles, loss of ovarian follicles, and impaired ovarian function. In reproductive-age women, oocyte quality is an important element for successful clinical pregnancies and healthy offspring as poor-quality oocytes may be a cause of infertility (McClam et al. Biol Reprod. 106:328-37, 2022; Marteil et al. Reprod Biol. 9:203-24, 2009; Krisher. J Anim Sci. 82: E14-E23, 2004). Thus, it is critical to determine the quantity and quality of surviving follicles in the ovary after cancer treatment and to assess oocyte quality within those surviving follicles as these are markers for determining the capacity for ovarian function restoration and future fertility, especially for young cancer survivors (Xu et al. Nat Med. 17:1562-3, 2011). The long-term effects of cancer therapeutics on oocyte quality are influenced by factors including, but not limited to, individual patient characteristics (e.g. age, health history, comorbidities, etc.), disease type, or treatment regimen (Marci et al. Reprod Biol Endocrinol. 16:1-112, 2018). These effects may translate clinically into an impaired production of viable oocytes and compromised fertility (Garutti et al. ESMO Open. 6:100276, 2021).
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Affiliation(s)
- Rosemary Dong
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- , Omaha, USA
| | - Amirhossein Abazarikia
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- , Omaha, USA
| | - Yi Luan
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- , Omaha, USA
| | - Seok-Yeong Yu
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- , Omaha, USA
| | - So-Youn Kim
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA.
- , Omaha, USA.
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10
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Sun F, Sutovsky P, Patterson AL, Balboula AZ. Mechanisms of DNA Damage Response in Mammalian Oocytes. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2024; 238:47-68. [PMID: 39030354 DOI: 10.1007/978-3-031-55163-5_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
DNA damage poses a significant challenge to all eukaryotic cells, leading to mutagenesis, genome instability and senescence. In somatic cells, the failure to repair damaged DNA can lead to cancer development, whereas, in oocytes, it can lead to ovarian dysfunction and infertility. The response of the cell to DNA damage entails a series of sequential and orchestrated events including sensing the DNA damage, activating DNA damage checkpoint, chromatin-related conformational changes, activating the DNA damage repair machinery and/or initiating the apoptotic cascade. This chapter focuses on how somatic cells and mammalian oocytes respond to DNA damage. Specifically, we will discuss how and why fully grown mammalian oocytes differ drastically from somatic cells and growing oocytes in their response to DNA damage.
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Affiliation(s)
- Fei Sun
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
| | - Peter Sutovsky
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
- Department of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, MO, USA
| | - Amanda L Patterson
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
- Department of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, MO, USA
| | - Ahmed Z Balboula
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA.
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11
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Ratnayaka-Gamage ND, Alesi LR, Zerafa N, Stringer JM, Hutt KJ. Xrcc5/KU80 is not required for the survival or activation of prophase-arrested oocytes in primordial follicles. Front Endocrinol (Lausanne) 2023; 14:1268009. [PMID: 37900135 PMCID: PMC10603181 DOI: 10.3389/fendo.2023.1268009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/18/2023] [Indexed: 10/31/2023] Open
Abstract
Introduction The non-growing, meiotically-arrested oocytes housed within primordial follicles are exquisitely sensitive to genotoxic insults from endogenous and exogenous sources. Even a single DNA double-strand break (DSB) can trigger oocyte apoptosis, which can lead to accelerated depletion of the ovarian reserve, early loss of fertility and menopause. Therefore, repair of DNA damage is important for preserving the quality of oocytes to sustain fertility across the reproductive lifespan. This study aimed to evaluate the role of KU80 (encoded by the XRCC5 gene) - an essential component of the non-homologous end joining (NHEJ) pathway - in the repair of oocyte DNA DSBs during reproductive ageing, and following insult caused by the DNA-damaging chemotherapies cyclophosphamide and cisplatin. Methods To investigate the importance of KU80 following endogenous and exogenous DNA damage, ovaries from conditional oocyte-specific Xrcc5 knockout (Xrcc5 cKO) and wildtype (WT) mice that were aged or exposed to DNA damage-inducing chemotherapy were compared. Ovarian follicles and oocytes were quantified, morphologically assessed and analysed via immunohistochemistry for markers of DNA damage and apoptosis. In addition, chemotherapy exposed mice were superovulated, and the numbers and quality of mature metaphase- II (MII) oocytes were assessed. Results The number of healthy follicles, atretic (dying) follicles, and corpora lutea were similar in Xrcc5 cKO and WT mice at PN50, PN200 and PN300. Additionally, primordial follicle number and ovulation rates were similar in young adult Xrcc5 cKO and WT mice following treatment with cyclophosphamide (75mg/kg), cisplatin (4mg/kg), or vehicle control (saline). Furthermore, KU80 was not essential for the repair of exogenously induced DNA damage in primordial follicle oocytes. Discussion These data indicate that KU80 is not required for maintenance of the ovarian reserve, follicle development, or ovulation during maternal ageing. Similarly, this study also indicates that KU80 is not required for the repair of exogenously induced DSBs in the prophase-arrested oocytes of primordial follicles.
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Affiliation(s)
| | | | | | | | - Karla J. Hutt
- *Correspondence: Jessica M. Stringer, ; Karla J. Hutt,
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12
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Marinaro JA. Sperm DNA fragmentation and its interaction with female factors. Fertil Steril 2023; 120:715-719. [PMID: 37290553 DOI: 10.1016/j.fertnstert.2023.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/10/2023]
Abstract
High levels of sperm deoxyribonucleic acid (DNA) fragmentation have been associated with adverse reproductive outcomes, including low natural and assisted pregnancy rates, abnormal embryonic development, and recurrent pregnancy loss. These poor outcomes are likely caused by unrepaired DNA damage exceeding a critical repair threshold, adversely affecting normal embryo development. In these cases, DNA repair mechanisms of the oocyte may play a significant role in compensating for sperm DNA damage, preserving normal embryo development, and enhancing reproductive outcomes.
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Ding X, Zhang Y, Li D, Xu J, Wu C, Cui X, Sun Y. Comparative transcriptomic analysis of reproductive characteristics of reciprocal hybrid lineages derived from hybridization between Megalobrama amblycephala and Culter alburnus. BMC Genom Data 2023; 24:45. [PMID: 37573319 PMCID: PMC10422732 DOI: 10.1186/s12863-023-01141-6] [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: 05/08/2023] [Accepted: 07/21/2023] [Indexed: 08/14/2023] Open
Abstract
BACKGROUND Distant hybridization is an important breeding technique for creating new strains with superior traits by integrating two different genomes. Successful hybridization of Megalobrama amblycephala (Blunt snout bream, BSB, 2n = 48) and Culter alburnus (Topmouth culter, TC, 2n = 48) was achieved to establish hybrid lineages (BT and TB), which provide valuable materials for exploring the mechanisms of distant hybridization fertility. In this study, the gonadal tissue transcriptomes of BSB, TC, BT-F1, and TB-F1 were sequenced using Illumina high-throughput sequencing technology to analyze the reproductive characteristics of BT and TB. RESULTS Differential gene expression analysis showed that the differentially expressed genes in BT vs BSB and BT vs TC were mainly enriched in signaling pathways not directly associated with meiosis. While, the differentially expressed genes of TB vs BSB and TB vs TC were mainly enriched in pathways related to meiosis, and most of them were down-regulated, indicating that meiosis is suppressed in TB. Under-dominance (UD) genes were enriched in pathways related to meiosis and DNA repair in TB. Over-dominance (OD) genes were enriched in MAPK signaling pathway, expression level dominance-BSB (ELD-B) genes were enriched in pathways related to steroid hormone synthesis and expression level dominance-TC (ELD-T) genes were not significantly enriched in any pathway in both BT and TB. CONCLUSIONS These results suggest that meiotic progression may not be affected in BT, whereas it is clearly inhibited in TB. Offspring of M. amblycephala maternal parent may have better genomic compatibility and fertility. Our study provides important information on the molecular mechanisms of breaking reproductive isolation in distantly hybridized fertile lineages.
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Affiliation(s)
- Xue Ding
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Yifei Zhang
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Die Li
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Jia Xu
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Chang Wu
- State Key Laboratory of Developmental Biology of Freshwater Fishes, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Xiaojuan Cui
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China.
| | - Yuandong Sun
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China.
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Benedetti F, Silvestri G, Saadat S, Denaro F, Latinovic OS, Davis H, Williams S, Bryant J, Ippodrino R, Rathinam CV, Gallo RC, Zella D. Mycoplasma DnaK increases DNA copy number variants in vivo. Proc Natl Acad Sci U S A 2023; 120:e2219897120. [PMID: 37459550 PMCID: PMC10372619 DOI: 10.1073/pnas.2219897120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 06/14/2023] [Indexed: 07/20/2023] Open
Abstract
The human microbiota affects critical cellular functions, although the responsible mechanism(s) is still poorly understood. In this regard, we previously showed that Mycoplasma fermentans DnaK, an HSP70 chaperone protein, hampers the activity of important cellular proteins responsible for DNA integrity. Here, we describe a novel DnaK knock-in mouse model generated in our laboratory to study the effect of M. fermentans DnaK expression in vivo. By using an array-based comparative genomic hybridization assay, we demonstrate that exposure to DnaK was associated with a higher number of DNA copy number variants (CNVs) indicative of unbalanced chromosomal alterations, together with reduced fertility and a high rate of fetal abnormalities. Consistent with their implication in genetic disorders, one of these CNVs caused a homozygous Grid2 deletion, resulting in an aberrant ataxic phenotype that recapitulates the extensive biallelic deletion in the Grid2 gene classified in humans as autosomal recessive spinocerebellar ataxia 18. Our data highlight a connection between components of the human urogenital tract microbiota, namely Mycoplasmas, and genetic abnormalities in the form of DNA CNVs, with obvious relevant medical, diagnostic, and therapeutic implications.
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Affiliation(s)
- Francesca Benedetti
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD21201
| | - Giovannino Silvestri
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
- Department of Medicine, School of Medicine, University of Maryland School of Medicine, Baltimore, MD21201
| | - Saman Saadat
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
| | - Frank Denaro
- Department of Biology, Morgan State University, Baltimore, MD21251
| | - Olga S. Latinovic
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD21201
| | - Harry Davis
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
| | - Sumiko Williams
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
| | - Joseph Bryant
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
| | | | - Chozha V. Rathinam
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
- Department of Medicine, School of Medicine, University of Maryland School of Medicine, Baltimore, MD21201
| | - Robert C. Gallo
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
- Department of Medicine, School of Medicine, University of Maryland School of Medicine, Baltimore, MD21201
| | - Davide Zella
- Institute of Human Virology and Global Virus Network Center, University of Maryland School of Medicine, Baltimore, MD21201
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD21201
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15
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Cai X, Stringer JM, Zerafa N, Carroll J, Hutt KJ. Xrcc5/Ku80 is required for the repair of DNA damage in fully grown meiotically arrested mammalian oocytes. Cell Death Dis 2023; 14:397. [PMID: 37407587 DOI: 10.1038/s41419-023-05886-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 05/07/2023] [Accepted: 06/12/2023] [Indexed: 07/07/2023]
Abstract
Mammalian oocytes spend most of their life in a unique state of cell cycle arrest at meiotic prophase I, during which time they are exposed to countless DNA-damaging events. Recent studies have shown that DNA double-strand break repair occurs predominantly via the homologous recombination (HR) pathway in small non-growing meiotically arrested oocytes (primordial follicle stage). However, the DNA repair mechanisms employed by fully grown meiotically arrested oocytes (GV-stage) have not been studied in detail. Here we established a conditional knockout mouse model to explore the role of Ku80, a critical component of the nonhomologous end joining (NHEJ) pathway, in the repair of DNA damage in GV oocytes. GV oocytes lacking Ku80 failed to repair etoposide-induced DNA damage, even when only low levels of damage were sustained. This indicates Ku80 is needed to resolve DSBs and that HR cannot compensate for a compromised NHEJ pathway in fully-grown oocytes. When higher levels of DNA damage were induced, a severe delay in M-phase entry was observed in oocytes lacking XRCC5 compared to wild-type oocytes, suggesting that Ku80-dependent repair of DNA damage is important for the timely release of oocytes from prophase I and resumption of meiosis. Ku80 was also found to be critical for chromosome integrity during meiotic maturation following etoposide exposure. These data demonstrate that Ku80, and NHEJ, are vital for quality control in mammalian GV stage oocytes and reveal that DNA repair pathway choice differs in meiotically arrested oocytes according to growth status.
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Affiliation(s)
- Xuebi Cai
- Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Jessica M Stringer
- Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Nadeen Zerafa
- Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - John Carroll
- Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Karla J Hutt
- Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia.
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16
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Stringer JM, Alesi LR, Winship AL, Hutt KJ. Beyond apoptosis: evidence of other regulated cell death pathways in the ovary throughout development and life. Hum Reprod Update 2023; 29:434-456. [PMID: 36857094 PMCID: PMC10320496 DOI: 10.1093/humupd/dmad005] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/06/2022] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Regulated cell death is a fundamental component of numerous physiological processes; spanning from organogenesis in utero, to normal cell turnover during adulthood, as well as the elimination of infected or damaged cells throughout life. Quality control through regulation of cell death pathways is particularly important in the germline, which is responsible for the generation of offspring. Women are born with their entire supply of germ cells, housed in functional units known as follicles. Follicles contain an oocyte, as well as specialized somatic granulosa cells essential for oocyte survival. Follicle loss-via regulated cell death-occurs throughout follicle development and life, and can be accelerated following exposure to various environmental and lifestyle factors. It is thought that the elimination of damaged follicles is necessary to ensure that only the best quality oocytes are available for reproduction. OBJECTIVE AND RATIONALE Understanding the precise factors involved in triggering and executing follicle death is crucial to uncovering how follicle endowment is initially determined, as well as how follicle number is maintained throughout puberty, reproductive life, and ovarian ageing in women. Apoptosis is established as essential for ovarian homeostasis at all stages of development and life. However, involvement of other cell death pathways in the ovary is less established. This review aims to summarize the most recent literature on cell death regulators in the ovary, with a particular focus on non-apoptotic pathways and their functions throughout the discrete stages of ovarian development and reproductive life. SEARCH METHODS Comprehensive literature searches were carried out using PubMed and Google Scholar for human, animal, and cellular studies published until August 2022 using the following search terms: oogenesis, follicle formation, follicle atresia, oocyte loss, oocyte apoptosis, regulated cell death in the ovary, non-apoptotic cell death in the ovary, premature ovarian insufficiency, primordial follicles, oocyte quality control, granulosa cell death, autophagy in the ovary, autophagy in oocytes, necroptosis in the ovary, necroptosis in oocytes, pyroptosis in the ovary, pyroptosis in oocytes, parthanatos in the ovary, and parthanatos in oocytes. OUTCOMES Numerous regulated cell death pathways operate in mammalian cells, including apoptosis, autophagic cell death, necroptosis, and pyroptosis. However, our understanding of the distinct cell death mediators in each ovarian cell type and follicle class across the different stages of life remains the source of ongoing investigation. Here, we highlight recent evidence for the contribution of non-apoptotic pathways to ovarian development and function. In particular, we discuss the involvement of autophagy during follicle formation and the role of autophagic cell death, necroptosis, pyroptosis, and parthanatos during follicle atresia, particularly in response to physiological stressors (e.g. oxidative stress). WIDER IMPLICATIONS Improved knowledge of the roles of each regulated cell death pathway in the ovary is vital for understanding ovarian development, as well as maintenance of ovarian function throughout the lifespan. This information is pertinent not only to our understanding of endocrine health, reproductive health, and fertility in women but also to enable identification of novel fertility preservation targets.
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Affiliation(s)
- Jessica M Stringer
- Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Lauren R Alesi
- Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Amy L Winship
- Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Karla J Hutt
- Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
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17
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Wuri L, Burghardt RC, Arosh JA, Long CR, Banu SK. Hexavalent Chromium Disrupts Oocyte Development in Rats by Elevating Oxidative Stress, DNA Double-Strand Breaks, Microtubule Disruption, and Aberrant Segregation of Chromosomes. Int J Mol Sci 2023; 24:10003. [PMID: 37373153 DOI: 10.3390/ijms241210003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Environmental and occupational exposure to hexavalent chromium, Cr(VI), causes female reproductive failures and infertility. Cr(VI) is used in more than 50 industries and is a group A carcinogen, mutagenic and teratogenic, and a male and female reproductive toxicant. Our previous findings indicate that Cr(VI) causes follicular atresia, trophoblast cell apoptosis, and mitochondrial dysfunction in metaphase II (MII) oocytes. However, the integrated molecular mechanism of Cr(VI)-induced oocyte defects is not understood. The current study investigates the mechanism of Cr(VI) in causing meiotic disruption of MII oocytes, leading to oocyte incompetence in superovulated rats. Postnatal day (PND) 22 rats were treated with potassium dichromate (1 and 5 ppm) in drinking water from PND 22-29 and superovulated. MII oocytes were analyzed by immunofluorescence, and images were captured by confocal microscopy and quantified by Image-Pro Plus software, Version 10.0.5. Our data showed that Cr(VI) increased microtubule misalignment (~9 fold), led to missegregation of chromosomes and bulged and folded actin caps, increased oxidative DNA (~3 fold) and protein (~9-12 fold) damage, and increased DNA double-strand breaks (~5-10 fold) and DNA repair protein RAD51 (~3-6 fold). Cr(VI) also induced incomplete cytokinesis and delayed polar body extrusion. Our study indicates that exposure to environmentally relevant doses of Cr(VI) caused severe DNA damage, distorted oocyte cytoskeletal proteins, and caused oxidative DNA and protein damage, resulting in developmental arrest in MII oocytes.
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Affiliation(s)
- Liga Wuri
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Robert C Burghardt
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Joe A Arosh
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Charles R Long
- Department of Veterinary Physiology and Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Sakhila K Banu
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
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18
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Rishi JK, Timme K, White HE, Kerns KC, Keating AF. Obesity partially potentiates dimethylbenz[a]anthracene-exposed ovotoxicity by altering the DNA damage repair response in mice†. Biol Reprod 2023; 108:694-707. [PMID: 36702632 PMCID: PMC10106840 DOI: 10.1093/biolre/ioac218] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/02/2022] [Accepted: 11/30/2022] [Indexed: 01/28/2023] Open
Abstract
Obesity adversely affects reproduction, impairing oocyte quality, fecundity, conception, and implantation. The ovotoxicant, dimethylbenz[a]anthracene, is biotransformed into a genotoxic metabolite to which the ovary responds by activating the ataxia telangiectasia mutated DNA repair pathway. Basal ovarian DNA damage coupled with a blunted response to genotoxicant exposure occurs in obese females, leading to the hypothesis that obesity potentiates ovotoxicity through ineffective DNA damage repair. Female KK.Cg-a/a (lean) and KK.Cg-Ay/J (obese) mice received corn oil or dimethylbenz[a]anthracene (1 mg/kg) at 9 weeks of age for 7 days via intraperitoneal injection (n = 10/treatment). Obesity increased liver weight (P < 0.001) and reduced (P < 0.05) primary, preantral, and corpora lutea number. In lean mice, dimethylbenz[a]anthracene exposure tended (P < 0.1) to increase proestrus duration and reduced (P = 0.07) primordial follicle number. Dimethylbenz[a]anthracene exposure decreased (P < 0.05) uterine weight and increased (P < 0.05) primary follicle number in obese mice. Total ovarian abundance of BRCA1, γH2AX, H3K4me, H4K5ac, H4K12ac, and H4K16ac (P > 0.05) was unchanged by obesity or dimethylbenz[a]anthracene exposure. Immunofluorescence staining demonstrated decreased (P < 0.05) abundance of γH2AX foci in antral follicles of obese mice. In primary follicle oocytes, BRCA1 protein was reduced (P < 0.05) by dimethylbenz[a]anthracene exposure in lean mice. Obesity also decreased (P < 0.05) BRCA1 protein in primary follicle oocytes. These findings support both a follicle stage-specific ovarian response to dimethylbenz[a]anthracene exposure and an impact of obesity on this ovarian response.
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Affiliation(s)
- Jaspreet K Rishi
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Kelsey Timme
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Hunter E White
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Karl C Kerns
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Aileen F Keating
- Department of Animal Science, Iowa State University, Ames, IA, USA
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19
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Baran V, Mayer A. Checkpoint Kinase 1 Is a Key Signal Transducer of DNA Damage in the Early Mammalian Cleavage Embryo. Int J Mol Sci 2023; 24:ijms24076778. [PMID: 37047751 PMCID: PMC10095474 DOI: 10.3390/ijms24076778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/01/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023] Open
Abstract
After fertilization, remodeling of the oocyte and sperm genome is essential for the successful initiation of mitotic activity in the fertilized oocyte and subsequent proliferative activity of the early embryo. Despite the fact that the molecular mechanisms of cell cycle control in early mammalian embryos are in principle comparable to those in somatic cells, there are differences resulting from the specific nature of the gene totipotency of the blastomeres of early cleavage embryos. In this review, we focus on the Chk1 kinase as a key transduction factor in monitoring the integrity of DNA molecules during early embryogenesis.
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Affiliation(s)
- Vladimír Baran
- Institute of Animal Physiology, Centre of Biosciences, Slovak Academy of Sciences, Šoltésovej 4, 040 00 Košice, Slovakia
| | - Alexandra Mayer
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University, 12000 Prague, Czech Republic
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20
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Liu MH, Costa B, Choi U, Bandler RC, Lassen E, Grońska-Pęski M, Schwing A, Murphy ZR, Rosenkjær D, Picciotto S, Bianchi V, Stengs L, Edwards M, Loh CA, Truong TK, Brand RE, Pastinen T, Wagner JR, Skytte AB, Tabori U, Shoag JE, Evrony GD. Single-strand mismatch and damage patterns revealed by single-molecule DNA sequencing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.19.526140. [PMID: 36824744 PMCID: PMC9949150 DOI: 10.1101/2023.02.19.526140] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Mutations accumulate in the genome of every cell of the body throughout life, causing cancer and other genetic diseases1-4. Almost all of these mosaic mutations begin as nucleotide mismatches or damage in only one of the two strands of the DNA prior to becoming double-strand mutations if unrepaired or misrepaired5. However, current DNA sequencing technologies cannot resolve these initial single-strand events. Here, we developed a single-molecule, long-read sequencing method that achieves single-molecule fidelity for single-base substitutions when present in either one or both strands of the DNA. It also detects single-strand cytosine deamination events, a common type of DNA damage. We profiled 110 samples from diverse tissues, including from individuals with cancer-predisposition syndromes, and define the first single-strand mismatch and damage signatures. We find correspondences between these single-strand signatures and known double-strand mutational signatures, which resolves the identity of the initiating lesions. Tumors deficient in both mismatch repair and replicative polymerase proofreading show distinct single-strand mismatch patterns compared to samples deficient in only polymerase proofreading. In the mitochondrial genome, our findings support a mutagenic mechanism occurring primarily during replication. Since the double-strand DNA mutations interrogated by prior studies are only the endpoint of the mutation process, our approach to detect the initiating single-strand events at single-molecule resolution will enable new studies of how mutations arise in a variety of contexts, especially in cancer and aging.
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Affiliation(s)
- Mei Hong Liu
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
| | - Benjamin Costa
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
| | - Una Choi
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
| | - Rachel C. Bandler
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
| | | | - Marta Grońska-Pęski
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
| | - Adam Schwing
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
| | - Zachary R. Murphy
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
| | | | - Shany Picciotto
- Department of Urology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, USA
| | - Vanessa Bianchi
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Canada
| | - Lucie Stengs
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Canada
| | - Melissa Edwards
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Canada
| | - Caitlin A. Loh
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
| | - Tina K. Truong
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
| | - Randall E. Brand
- Department of Medicine, University of Pittsburgh School of Medicine, USA
| | - Tomi Pastinen
- Genomic Medicine Center, Children’s Mercy Kansas City, USA
| | - J. Richard Wagner
- Department of Nuclear Medicine and Radiobiology, Université de Sherbrooke, Canada
| | | | - Uri Tabori
- Program in Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Canada
- Division of Haematology/Oncology, Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Canada
| | - Jonathan E. Shoag
- Department of Urology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, USA
| | - Gilad D. Evrony
- Center for Human Genetics and Genomics, New York University Grossman School of Medicine, USA
- Department of Pediatrics, Department of Neuroscience & Physiology, Institute for Systems Genetics, Perlmutter Cancer Center, and Neuroscience Institute, New York University Grossman School of Medicine, USA
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21
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Li J, Li Q, Zhang L, Zhang S, Dai Y. Poly-ADP-ribose polymerase (PARP) inhibitors and ovarian function. Biomed Pharmacother 2023; 157:114028. [PMID: 36410122 DOI: 10.1016/j.biopha.2022.114028] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/08/2022] [Accepted: 11/17/2022] [Indexed: 11/19/2022] Open
Abstract
Poly-ADP-ribose polymerase (PARP) plays an important role in DNA damage detection and repair. PARP inhibitors (PARPi) are a novel class of targeted agents used widely in the treatment of female cancer patients with BRCA mutations, including younger patients. However, the impact of PARPi on ovarian function remains a considerable problem in clinical practice. In this review article, we summarize the current understanding of PARPi's effects on the function of ovary and discuss their potential underlying mechanisms, highlighting the significance of further investigation on the criterion for ovarian failure and its preventive approaches during PARPi treatment.
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Affiliation(s)
- Jiajia Li
- Gynecologic Oncology Department, First Hospital of Jilin University, Changchun, Jilin, China; Laboratory of Cancer Precision Medicine, First Hospital of Jilin University, Changchun, Jilin, China
| | - Qingchao Li
- Laboratory of Cancer Precision Medicine, First Hospital of Jilin University, Changchun, Jilin, China
| | - Lingyi Zhang
- Laboratory of Cancer Precision Medicine, First Hospital of Jilin University, Changchun, Jilin, China; Gynecology and Obstetrics Department, Second Hospital of Jilin University, Changchun, Jilin, China
| | - Songling Zhang
- Gynecologic Oncology Department, First Hospital of Jilin University, Changchun, Jilin, China.
| | - Yun Dai
- Laboratory of Cancer Precision Medicine, First Hospital of Jilin University, Changchun, Jilin, China.
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22
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Ribas-Maynou J, Novo S, Torres M, Salas-Huetos A, Rovira S, Antich M, Yeste M. Sperm DNA integrity does play a crucial role for embryo development after ICSI, notably when good-quality oocytes from young donors are used. Biol Res 2022; 55:41. [PMID: 36572948 PMCID: PMC9791757 DOI: 10.1186/s40659-022-00409-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/17/2022] [Indexed: 12/27/2022] Open
Abstract
Based on the inconsistent literature published thus far involving infertile patients, whether intracytoplasmic sperm injection (ICSI) allows overcoming total fertilization failure due to sperm DNA fragmentation is still unclear. Related to this, female factors, which may have a significant impact on assisted reproduction outcomes, can mask male infertility. In this scenario, evaluating ICSI outcomes following cycles using healthy donor gametes could shed light on this realm, as it would avoid the influence of (un)known confounding factors present in infertile individuals. The present work, therefore, aimed to address whether single- and double-stranded sperm DNA fragmentation leads to impaired ICSI outcomes in double gamete donation cycles. The study also compared these double-gamete donation cycles to cycles in which only sperm were donated and oocytes were obtained from infertile patients. Two cohorts were included: (a) the Donor-Donor (DD) cohort, which included 27 semen donor samples used in 49 ICSI cycles with young healthy oocyte donors; and (b) the Donor-Infertile (DI) cohort, which involved 34 semen donor samples used in 57 ICSI cycles with oocytes from patients. Single- and double-stranded sperm DNA breaks were determined with alkaline and neutral Comet assays, respectively; ICSI was conducted following standard protocols and embryos were monitored through time-lapse microscopy. In the DD cohort, the percentage of sperm with high overall DNA damage correlated with fertilization rates (Rs = - 0.666; P < 0.001) and with the percentage of blastocysts per injected oocyte (Rs = - 0.414; P = 0.040). In addition, sperm DNA damage delayed the first embryo division (Rs = 0.421; P = 0.036), and development from the 8-cell to the morula stage (Rs = 0.424; P = 0.034). In contrast, double-stranded DNA breaks had no effect in this cohort. As far as the DI cohort is concerned, while overall sperm DNA damage was not found to be correlated to fertilization or blastocyst rates, pronuclei formation following ICSI was delayed when the incidence of double-stranded DNA breaks was high (Rs = 0.485; P = 0.005). In conclusion, this study, which is the first involving double donation cycles (i.e., a donor-donor cohort), supports that sperm DNA damage has a detrimental impact on fertilization rates after ICSI, and delays embryo development. Moreover, the use of oocytes from infertile individuals is suggested to hide the male-factor effect.
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Affiliation(s)
- Jordi Ribas-Maynou
- grid.5319.e0000 0001 2179 7512Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, C/ Maria Aurèlia Capmany 69, ES-17003 Girona, Spain ,grid.5319.e0000 0001 2179 7512Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Sergi Novo
- Fertilab – Institut Catala de Fertilitat SL, Barcelona, Spain ,Fertibank, Barcelona, Spain
| | - Marc Torres
- grid.5319.e0000 0001 2179 7512Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, C/ Maria Aurèlia Capmany 69, ES-17003 Girona, Spain ,grid.5319.e0000 0001 2179 7512Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Albert Salas-Huetos
- grid.5319.e0000 0001 2179 7512Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, C/ Maria Aurèlia Capmany 69, ES-17003 Girona, Spain ,grid.5319.e0000 0001 2179 7512Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain ,grid.38142.3c000000041936754XDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA USA
| | - Sergi Rovira
- Fertilab – Institut Catala de Fertilitat SL, Barcelona, Spain ,Fertibank, Barcelona, Spain
| | - Marta Antich
- Fertilab – Institut Catala de Fertilitat SL, Barcelona, Spain ,Fertibank, Barcelona, Spain
| | - Marc Yeste
- grid.5319.e0000 0001 2179 7512Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, C/ Maria Aurèlia Capmany 69, ES-17003 Girona, Spain ,grid.5319.e0000 0001 2179 7512Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain ,grid.425902.80000 0000 9601 989XCatalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
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23
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Lee C, Leem J, Oh JS. Selective utilization of non-homologous end-joining and homologous recombination for DNA repair during meiotic maturation in mouse oocytes. Cell Prolif 2022; 56:e13384. [PMID: 36564861 PMCID: PMC10068936 DOI: 10.1111/cpr.13384] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/29/2022] [Accepted: 12/08/2022] [Indexed: 12/25/2022] Open
Abstract
DNA double-strand breaks (DSBs) are highly toxic lesions that can cause genomic instability and can be repaired by non-homologous end-joining (NHEJ) and homologous recombination (HR) pathways. Despite extensive studies about DSB repair pathways, the roles of each pathway during meiotic maturation in oocytes are not well understood. Here we show that oocytes selectively utilize NHEJ and HR to repair DSBs during meiotic maturation. Inhibition of NHEJ impaired the meiotic maturation of oocytes with DNA damage by activating the spindle assembly checkpoint (SAC) with a concomitant increase in metaphase I (MI) arrest and DNA damage levels. In contrast, oocytes with DNA damage bypassed SAC-mediated MI arrest despite the presence of fragmented DNA when HR was inhibited. Notably, this bypass of SAC arrest by HR inhibition was associated with a loss of centromere integrity and subsequent impairment of chromosome architecture. Our results demonstrate that, while NHEJ is critical for the meiotic maturation of oocytes with DNA damage, HR is essential to maintain centromere integrity against DNA damage during meiotic maturation, revealing distinct roles of NHEJ and HR during meiotic maturation in mouse oocytes.
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Affiliation(s)
- Crystal Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Jiyeon Leem
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Jeong Su Oh
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea.,Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, South Korea
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24
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Gonfloni S, Jodice C, Gustavino B, Valentini E. DNA Damage Stress Response and Follicle Activation: Signaling Routes of Mammalian Ovarian Reserve. Int J Mol Sci 2022; 23:14379. [PMID: 36430860 PMCID: PMC9693393 DOI: 10.3390/ijms232214379] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Chemotherapy regimens and radiotherapy are common strategies to fight cancer. In women, these therapies may cause side effects such as premature ovarian insufficiency (POI) and infertility. Clinical strategies to protect the ovarian reserve from the lethal effect of cancer therapies needs better understanding of the mechanisms underlying iatrogenic loss of follicle reserve. Recent reports demonstrate a critical role for p53 and CHK2 in the oocyte response to different DNA stressors, which are commonly used to treat cancer. Here we review the molecular mechanisms underlying the DNA damage stress response (DDR) and discuss crosstalk between DDR and signaling pathways implicated in primordial follicle activation.
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Affiliation(s)
- Stefania Gonfloni
- Department of Biology, University of Rome Tor Vergata, Via Della Ricerca Scientifica, 00133 Rome, Italy
| | - Carla Jodice
- Department of Biology, University of Rome Tor Vergata, Via Della Ricerca Scientifica, 00133 Rome, Italy
| | - Bianca Gustavino
- Department of Biology, University of Rome Tor Vergata, Via Della Ricerca Scientifica, 00133 Rome, Italy
| | - Elvia Valentini
- Department of Biology, University of Rome Tor Vergata, Via Della Ricerca Scientifica, 00133 Rome, Italy
- PhD Program in Cellular and Molecular Biology, 00133 Rome, Italy
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25
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The programmed death of fetal oocytes and the correlated surveillance mechanisms. REPRODUCTIVE AND DEVELOPMENTAL MEDICINE 2022. [DOI: 10.1097/rd9.0000000000000016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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26
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Winship AL, Alesi LR, Sant S, Stringer JM, Cantavenera A, Hegarty T, Requesens CL, Liew SH, Sarma U, Griffiths MJ, Zerafa N, Fox SB, Brown E, Caramia F, Zareie P, La Gruta NL, Phillips KA, Strasser A, Loi S, Hutt KJ. Checkpoint inhibitor immunotherapy diminishes oocyte number and quality in mice. NATURE CANCER 2022; 3:1-13. [PMID: 36008687 DOI: 10.1038/s43018-022-00413-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Loss of fertility is a major concern for female reproductive-age cancer survivors, since a common side-effect of conventional cytotoxic cancer therapies is permanent damage to the ovary. While immunotherapies are increasingly becoming a standard of care for many cancers-including in the curative setting-their impacts on ovarian function and fertility are unknown. We evaluated the effect of immune checkpoint inhibitors blocking programmed cell death protein ligand 1 and cytotoxic T lymphocyte-associated antigen 4 on the ovary using tumor-bearing and tumor-free mouse models. We find that immune checkpoint inhibition increases immune cell infiltration and tumor necrosis factor-α expression within the ovary, diminishes the ovarian follicular reserve and impairs the ability of oocytes to mature and ovulate. These data demonstrate that immune checkpoint inhibitors have the potential to impair both immediate and future fertility, and studies in women should be prioritized. Additionally, fertility preservation should be strongly considered for women receiving these immunotherapies, and preventative strategies should be investigated in future studies.
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Affiliation(s)
- Amy L Winship
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Lauren R Alesi
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Sneha Sant
- Division of Research, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Jessica M Stringer
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Aldana Cantavenera
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Teharn Hegarty
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Carolina Lliberos Requesens
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Seng H Liew
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Urooza Sarma
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Meaghan J Griffiths
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Nadeen Zerafa
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Stephen B Fox
- Division of Research, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Emmaline Brown
- Division of Research, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Franco Caramia
- Division of Research, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Victoria, Australia
| | - Pirooz Zareie
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Nicole L La Gruta
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Kelly-Anne Phillips
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Sherene Loi
- Division of Research, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Victoria, Australia.
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.
| | - Karla J Hutt
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.
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27
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Leem J, Bai GY, Oh JS. The Capacity to Repair Sperm DNA Damage in Zygotes is Enhanced by Inhibiting WIP1 Activity. Front Cell Dev Biol 2022; 10:841327. [PMID: 35478962 PMCID: PMC9037036 DOI: 10.3389/fcell.2022.841327] [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] [Received: 12/22/2021] [Accepted: 03/23/2022] [Indexed: 11/13/2022] Open
Abstract
Maintaining genome integrity in germ cells is essential not only for successful fertilization and embryo development, but also to ensure proper transmission of genetic information across generations. However, unlike oocytes, sperm are incapable of repairing DNA damage. Therefore, sperm DNA damage is repaired after fertilization in zygotes using maternal DNA repair factors. In this study, we found that zygotic repair of paternal DNA damage is enhanced by inhibiting WIP1 activity. Oxidative stress induced DNA damage in sperm and severely impaired motility. Although DNA damage in sperm did not compromise fertilization, it increased DNA damage in the paternal pronucleus of zygotes. However, WIP1 inhibition during fertilization reduced DNA damage in the paternal pronucleus, improving the rate of two-cell development, and subsequent zygotic genome activation. Therefore, our results suggest that WIP1 inhibition could enhance maternal DNA repair capacity and thereby decrease paternal DNA damage in zygotes.
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Affiliation(s)
- Jiyeon Leem
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Guang-Yu Bai
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea.,Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, South Korea
| | - Jeong Su Oh
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea.,Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, South Korea
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28
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Zhao Z, Fan Q, Zhu Q, He R, Li Y, Liu C, Wang J, Liang X. Decreased fatty acids induced granulosa cell apoptosis in patients with diminished ovarian reserve. J Assist Reprod Genet 2022; 39:1105-1114. [PMID: 35347502 PMCID: PMC9107543 DOI: 10.1007/s10815-022-02462-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2022] [Indexed: 11/25/2022] Open
Abstract
PURPOSE To investigate whether fatty acid changes in granulosa cells (GCs) underly the pathogenic mechanisms of diminished ovarian reserve (DOR). METHODS GCs were obtained from patients with DOR (n = 70) and normal ovarian reserve (NOR, n = 70). Analysis of fatty acids changes in GCs was then analyzed. RESULTS Patients with DOR had significantly lower levels of antral follicle count and anti-Mullerian hormone and higher levels of follicle-stimulating hormone compared with NOR patients (P < 0.001). The good-quality embryo rate was notably decreased in DOR patients (51.99 vs 39.52%, P < 0.05). A total of 15 significantly decreased fatty acids in GCs from patients with DOR. The ATP levels were markedly lower in DOR patients than in NOR patients (39.07 ± 12.89 vs 23.21 ± 13.69%, P < 0.05). Mitochondrial membrane potential decreased in DOR patients (P < 0.01). In GCs from DOR patients, the β-oxidation genes (HADHA and ACSL) and DNA repair genes (PRKDC and RAD50) were significantly downregulated (P < 0.05). The γH2AX foci/nucleus ratio in DOR patients markedly increased relative to that of NOR patients (0.31 ± 0.03 vs 0.87 ± 0.07, P < 0.001). Meanwhile, the apoptosis rate of GCs was significantly higher in DOR patients (6.43 ± 2.11 vs 48.06 ± 6.72%, P < 0.01). CONCLUSION GC apoptosis resulting from the decrease of fatty acids, and associated with reduced ATP production and DNA damage, may contribute to the pathogenic mechanisms responsible for DOR.
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Affiliation(s)
- Zhongying Zhao
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Qigang Fan
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Qinying Zhu
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Ruifen He
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Yi Li
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Chang Liu
- Department of Obstetrics and Gynecology, Key Laboratory for Gynecologic Oncology Gansu Province, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Jing Wang
- Department of Obstetrics and Gynecology, Key Laboratory for Gynecologic Oncology Gansu Province, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Xiaolei Liang
- Department of Obstetrics and Gynecology, Key Laboratory for Gynecologic Oncology Gansu Province, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China.
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29
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Secomandi L, Borghesan M, Velarde M, Demaria M. The role of cellular senescence in female reproductive aging and the potential for senotherapeutic interventions. Hum Reprod Update 2022; 28:172-189. [PMID: 34918084 PMCID: PMC8888999 DOI: 10.1093/humupd/dmab038] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 10/28/2021] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Advanced maternal age is associated with decreased oocyte quantity and quality as well as uterine and placental dysfunctions. These changes lead to infertility, pregnancy complications and birth defects in the offspring. As the mean age of giving birth is increasing worldwide, prevention of age-associated infertility and pregnancy complications, along with the more frequent use of ART, become extremely important. Currently, significant research is being conducted to unravel the mechanisms underlying female reproductive aging. Among the potential mechanisms involved, recent evidence has suggested a contributing role for cellular senescence, a cellular state of irreversible growth arrest characterized by a hypersecretory and pro-inflammatory phenotype. Elucidating the role of senescence in female reproductive aging holds the potential for developing novel and less invasive therapeutic measures to prevent or even reverse female reproductive aging and increase offspring wellbeing. OBJECTIVE AND RATIONALE The review will summarize the positive and negative implications of cellular senescence in the pathophysiology of the female reproductive organs during aging and critically explore the use of novel senotherapeutics aiming to reverse and/or eliminate their detrimental effects. The focus will be on major senescence mechanisms of the ovaries, the uterus, and the placenta, as well as the potential and risks of using senotherapies that have been discovered in recent years. SEARCH METHODS Data for this review were identified by searches of MEDLINE, PubMed and Google Scholar. References from relevant articles using the search terms 'Cellular Senescence', 'Aging', 'Gestational age', 'Maternal Age', 'Anti-aging', 'Uterus', 'Pregnancy', 'Fertility', 'Infertility', 'Reproduction', 'Implant', 'Senolytic', 'Senostatic', 'Senotherapy' and 'Senotherapeutic' where selected. A total of 182 articles published in English between 2005 and 2020 were included, 27 of which focus on potential senotherapies for reproductive aging. Exclusion criteria were inclusion of the terms 'male' and 'plants'. OUTCOMES Aging is a major determinant of reproductive wellbeing. Cellular senescence is a basic aging mechanism, which can be exploited for therapeutic interventions. Within the last decade, several new strategies for the development and repurposing of drugs targeting senescent cells have emerged, such as modulators of the anti-inflammatory response, oxidative stress, DNA damage, and mitochondria and protein dysfunctions. Several studies of female reproductive aging and senotherapies have been discussed that show promising results for future interventions. WIDER IMPLICATIONS In most countries of the Organization for Economic Co-operation and Development, the average age at which women give birth is above 30 years. Currently, in countries such as the Netherlands, Australia, Spain, Finland, Germany and the UK, birth rates among 30- to 34-year-olds are now higher than in any other age groups. This review will provide new knowledge and scientific advancement on the senescence mechanisms during female reproductive aging, and benefit fundamental and clinical scientists and professionals in the areas of reproduction, cancer, immunobiology and fibrosis.
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Affiliation(s)
- Laura Secomandi
- European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen (UMCG), 9713AV Groningen, The Netherlands
| | - Michela Borghesan
- European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen (UMCG), 9713AV Groningen, The Netherlands
| | - Michael Velarde
- Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, PH 1101, Philippines
| | - Marco Demaria
- European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen (UMCG), 9713AV Groningen, The Netherlands
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Pailas A, Niaka K, Zorzompokou C, Marangos P. The DNA Damage Response in Fully Grown Mammalian Oocytes. Cells 2022; 11:cells11050798. [PMID: 35269420 PMCID: PMC8909749 DOI: 10.3390/cells11050798] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/09/2022] [Accepted: 02/17/2022] [Indexed: 11/16/2022] Open
Abstract
DNA damage in cells can occur physiologically or may be induced by exogenous factors. Genotoxic damage may cause cancer, ageing, serious developmental diseases and anomalies. If the damage occurs in the germline, it can potentially lead to infertility or chromosomal and genetic aberrations in the developing embryo. Mammalian oocytes, the female germ cells, are produced before birth, remaining arrested at the prophase stage of meiosis over a long period of time. During this extensive state of arrest the oocyte may be exposed to different DNA-damaging insults for months, years or even decades. Therefore, it is of great importance to understand how these cells respond to DNA damage. In this review, we summarize the most recent developments in the understanding of the DNA damage response mechanisms that function in fully grown mammalian oocytes.
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Affiliation(s)
- Alexandros Pailas
- Department of Biological Applications and Technology, School of Health Sciences, Institute of Biosciences, University Research Centre, University of Ioannina, 45110 Ioannina, Greece
| | - Konstantina Niaka
- Department of Biological Applications and Technology, School of Health Sciences, Institute of Biosciences, University Research Centre, University of Ioannina, 45110 Ioannina, Greece
| | - Chrysoula Zorzompokou
- Department of Biological Applications and Technology, School of Health Sciences, Institute of Biosciences, University Research Centre, University of Ioannina, 45110 Ioannina, Greece
| | - Petros Marangos
- Department of Biological Applications and Technology, School of Health Sciences, Institute of Biosciences, University Research Centre, University of Ioannina, 45110 Ioannina, Greece
- Biomedical Research Institute, Foundation for Research and Technology, University of Ioannina Campus, 45115 Ioannina, Greece
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Musson R, Gąsior Ł, Bisogno S, Ptak GE. DNA damage in preimplantation embryos and gametes: specification, clinical relevance and repair strategies. Hum Reprod Update 2022; 28:376-399. [PMID: 35021196 PMCID: PMC9071077 DOI: 10.1093/humupd/dmab046] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/13/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND DNA damage is a hazard that affects all cells of the body. DNA-damage repair (DDR) mechanisms are in place to repair damage and restore cellular function, as are other damage-induced processes such as apoptosis, autophagy and senescence. The resilience of germ cells and embryos in response to DNA damage is less well studied compared with other cell types. Given that recent studies have described links between embryonic handling techniques and an increased likelihood of disease in post-natal life, an update is needed to summarize the sources of DNA damage in embryos and their capacity to repair it. In addition, numerous recent publications have detailed novel techniques for detecting and repairing DNA damage in embryos. This information is of interest to medical or scientific personnel who wish to obtain undamaged embryos for use in offspring generation by ART. OBJECTIVE AND RATIONALE This review aims to thoroughly discuss sources of DNA damage in male and female gametes and preimplantation embryos. Special consideration is given to current knowledge and limits in DNA damage detection and screening strategies. Finally, obstacles and future perspectives in clinical diagnosis and treatment (repair) of DNA damaged embryos are discussed. SEARCH METHODS Using PubMed and Google Scholar until May 2021, a comprehensive search for peer-reviewed original English-language articles was carried out using keywords relevant to the topic with no limits placed on time. Keywords included ‘DNA damage repair’, ‘gametes’, ‘sperm’, ‘oocyte’, ‘zygote’, ‘blastocyst’ and ‘embryo’. References from retrieved articles were also used to obtain additional articles. Literature on the sources and consequences of DNA damage on germ cells and embryos was also searched. Additional papers cited by primary references were included. Results from our own studies were included where relevant. OUTCOMES DNA damage in gametes and embryos can differ greatly based on the source and severity. This damage affects the development of the embryo and can lead to long-term health effects on offspring. DDR mechanisms can repair damage to a certain extent, but the factors that play a role in this process are numerous and altogether not well characterized. In this review, we describe the multifactorial origin of DNA damage in male and female gametes and in the embryo, and suggest screening strategies for the selection of healthy gametes and embryos. Furthermore, possible therapeutic solutions to decrease the frequency of DNA damaged gametes and embryos and eventually to repair DNA and increase mitochondrial quality in embryos before their implantation is discussed. WIDER IMPLICATIONS Understanding DNA damage in gametes and embryos is essential for the improvement of techniques that could enhance embryo implantation and pregnancy success. While our knowledge about DNA damage factors and regulatory mechanisms in cells has advanced greatly, the number of feasible practical techniques to avoid or repair damaged embryos remains scarce. Our intention is therefore to focus on strategies to obtain embryos with as little DNA damage as possible, which will impact reproductive biology research with particular significance for reproductive clinicians and embryologists.
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Affiliation(s)
- Richard Musson
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Łukasz Gąsior
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Simona Bisogno
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Grażyna Ewa Ptak
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
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Newman H, Catt S, Vining B, Vollenhoven B, Horta F. DNA repair and response to sperm DNA damage in oocytes and embryos, and the potential consequences in ART: a systematic review. Mol Hum Reprod 2021; 28:6483093. [PMID: 34954800 DOI: 10.1093/molehr/gaab071] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/22/2021] [Indexed: 11/13/2022] Open
Abstract
Sperm DNA damage is considered a predictive factor for the clinical outcomes of patients undergoing ART. Laboratory evidence suggests that zygotes and developing embryos have adopted specific response and repair mechanisms to repair DNA damage of paternal origin. We have conducted a systematic review in accordance with guidelines from Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) to identify and review the maternal mechanisms used to respond and repair sperm DNA damage during early embryonic development, how these mechanisms operate and their potential clinical implications. The literature search was conducted in Ovid MEDLINE and Embase databases until May 2021. Out of 6297 articles initially identified, 36 studies were found to be relevant through cross referencing and were fully extracted. The collective evidence in human and animal models indicate that the early embryo has the capacity to repair DNA damage within sperm by activating maternally driven mechanisms throughout embryonic development. However, this capacity is limited and likely declines with age. The link between age and decreased DNA repair capacity could explain decreased oocyte quality in older women, poor reproductive outcomes in idiopathic cases, and patients who present high sperm DNA damage. Ultimately, further understanding mechanisms underlying the maternal repair of sperm DNA damage could lead to the development of targeted therapies to decrease sperm DNA damage, improved oocyte quality to combat incoming DNA insults or lead to development of methodologies to identify individual spermatozoa without DNA damage.
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Affiliation(s)
- H Newman
- Education Program in Reproduction & Development, Department of Obstetrics and Gynecology, Monash University, Melbourne, VIC 3168, Australia
| | - S Catt
- Education Program in Reproduction & Development, Department of Obstetrics and Gynecology, Monash University, Melbourne, VIC 3168, Australia
| | - B Vining
- Centre for Endocrinology and Metabolism, Hudson Institute of Medical Research, Melbourne, VIC 3168, Australia.,Department of Molecular and Translational Science, Monash University, Melbourne, VIC, 3800, Australia
| | - B Vollenhoven
- Education Program in Reproduction & Development, Department of Obstetrics and Gynecology, Monash University, Melbourne, VIC 3168, Australia.,Monash IVF, Melbourne, VIC, 3168, Australia.,Women's and Newborn Program, Monash Health, VIC, 3169, Australia
| | - F Horta
- Education Program in Reproduction & Development, Department of Obstetrics and Gynecology, Monash University, Melbourne, VIC 3168, Australia.,Monash IVF, Melbourne, VIC, 3168, Australia
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Baratas A, Gosálvez J, de la Casa M, Camacho S, Dorado-Silva M, Johnston SD, Roy R. Cumulus Cell DNA Damage as an Index of Human Oocyte Competence. Reprod Sci 2021; 29:3194-3200. [PMID: 34907517 PMCID: PMC9646542 DOI: 10.1007/s43032-021-00817-7] [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: 08/24/2021] [Accepted: 12/01/2021] [Indexed: 11/29/2022]
Abstract
The determination of oocyte quality is crucial for achieving effective syngamy post-sperm injection and embryonic development. Cumulus cells (CCs) have been proposed as biomarkers of oocyte quality because of their close bio-dynamic relationship with the oocyte. To determine the quality of the oocyte, CCs were sampled during oocyte preparation for ICSI to determine a CC DNA fragmentation index (CCDFI) of each individual oocyte using a variant of the chromatin dispersion test. One hundred and thirty oocytes were selected and studied from two Spanish fertility clinics, 90 of which were fertilized and developed to embryos. Significant differences were found between the CCDFI of unfertilized and fertilized oocytes (p < .001) and between the CCDFI of embryos that were discarded and those that developed suitable for transfer or cryopreservation (p < .001). Oocyte quality was negatively correlated with CCDFI (Spearman’s rho = − 0.45; p < .001). Receiver operator characteristics curves (ROC) suggested that a cut-off value of 24% CCDFI was able to discriminate the capacity of the gametes to result in syngamy with a sensitivity and specificity of 75.6% and 65%, respectively. This cut-off supports the application of CCDFI as potential index for the evaluation of the reproductive potential of oocytes prior to fertilization.
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Affiliation(s)
| | - Jaime Gosálvez
- Biology Department, Autonomous University of Madrid, Madrid, Spain
| | | | | | | | - Stephen D Johnston
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, Australia
| | - Rosa Roy
- Biology Department, Autonomous University of Madrid, Madrid, Spain.
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34
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DNA Repair in Haploid Context. Int J Mol Sci 2021; 22:ijms222212418. [PMID: 34830299 PMCID: PMC8620282 DOI: 10.3390/ijms222212418] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/08/2021] [Accepted: 11/14/2021] [Indexed: 12/15/2022] Open
Abstract
DNA repair is a well-covered topic as alteration of genetic integrity underlies many pathological conditions and important transgenerational consequences. Surprisingly, the ploidy status is rarely considered although the presence of homologous chromosomes dramatically impacts the repair capacities of cells. This is especially important for the haploid gametes as they must transfer genetic information to the offspring. An understanding of the different mechanisms monitoring genetic integrity in this context is, therefore, essential as differences in repair pathways exist that differentiate the gamete’s role in transgenerational inheritance. Hence, the oocyte must have the most reliable repair capacity while sperm, produced in large numbers and from many differentiation steps, are expected to carry de novo variations. This review describes the main DNA repair pathways with a special emphasis on ploidy. Differences between Saccharomyces cerevisiae and Schizosaccharomyces pombe are especially useful to this aim as they can maintain a diploid and haploid life cycle respectively.
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35
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Singh AK, Kumar SL, Beniwal R, Mohanty A, Kushwaha B, Rao HBDP. Local DNA synthesis is critical for DNA repair during oocyte maturation. J Cell Sci 2021; 134:272449. [PMID: 34415018 DOI: 10.1242/jcs.257774] [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: 11/30/2020] [Accepted: 08/16/2021] [Indexed: 01/04/2023] Open
Abstract
Mammalian oocytes can be very long-lived cells and thereby are very likely to encounter DNA damage during their lifetime. Defective DNA repair may result in oocytes that are developmentally incompetent or give rise to progeny with congenital disorders. During oocyte maturation, damaged DNA is repaired primarily by non-homologous end joining (NHEJ) or homologous recombination (HR). Although these repair pathways have been studied extensively, the associated DNA synthesis is poorly characterized. Here, using porcine oocytes, we demonstrate that the DNA synthesis machinery is present during oocyte maturation and dynamically recruited to sites of DNA damage. DNA polymerase δ is identified as being crucial for oocyte DNA synthesis. Furthermore, inhibiting synthesis causes DNA damage to accumulate and delays the progression of oocyte maturation. Importantly, inhibition of the spindle assembly checkpoint (SAC) bypassed the delay of oocyte maturation caused by DNA synthesis inhibition. Finally, we found that ∼20% of unperturbed oocytes experienced spontaneously arising damage during maturation. Cumulatively, our findings indicate that oocyte maturation requires damage-associated DNA synthesis that is monitored by the SAC. This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Ajay K Singh
- National Institute of Animal Biotechnology, Hyderabad, Telangana 500032, India
| | - S Lava Kumar
- National Institute of Animal Biotechnology, Hyderabad, Telangana 500032, India.,Graduate studies, Regional Centre for Biotechnology, Faridabad 121 001, India
| | - Rohit Beniwal
- National Institute of Animal Biotechnology, Hyderabad, Telangana 500032, India.,Graduate studies, Regional Centre for Biotechnology, Faridabad 121 001, India
| | - Aradhana Mohanty
- National Institute of Animal Biotechnology, Hyderabad, Telangana 500032, India.,Graduate studies, Regional Centre for Biotechnology, Faridabad 121 001, India
| | - Bhawna Kushwaha
- National Institute of Animal Biotechnology, Hyderabad, Telangana 500032, India
| | - H B D Prasada Rao
- National Institute of Animal Biotechnology, Hyderabad, Telangana 500032, India
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36
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Morris G, Mavrelos D, Odia R, Viñals Gonzalez X, Cawood S, Yasmin E, Saab W, Serhal P, Seshadri S. Paternal age over 50 years decreases assisted reproductive technology (ART) success: A single UK center retrospective analysis. Acta Obstet Gynecol Scand 2021; 100:1858-1867. [PMID: 34405396 DOI: 10.1111/aogs.14221] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/15/2022]
Abstract
INTRODUCTION To study whether paternal age exerts an effect, independent of maternal age, on the outcomes of fresh in vitro fertilization/ intracytoplasmic sperm injection (IVF/ICSI) cycles. Semen quality deteriorates with increasing paternal age; however, there is conflicting evidence for any impact paternal age may have on the outcome of IVF/ICSI. Several retrospective and prospective cohort studies have shown that paternal age increases the miscarriage rate and reduces the live birth rate. Some studies have shown no effect of paternal age on live birth rate or miscarriage rate. Studies involving donor oocytes have tended to show no independent effect of paternal age on assisted reproductive technology (ART) outcomes. The age at which paternal age may exert a significant deleterious effect on outcome is not known and there is no limit to paternal age in IVF/ICSI treatment. MATERIAL AND METHODS A single-center retrospective cohort study was carried out at the Centre for Reproductive and Genetic Health, London, UK. Included in the analysis were all couples with primary or secondary infertility undergoing IVF/ICSI cycles in which the male partner produced a fresh semen sample and the cycle proceeded to fresh embryo transfer. All cycles of IVF/ICSI that used donor oocytes-donor sperm, frozen sperm, cycles leading to embryo storage and cycles including preimplantation genetic testing (PGT-A/PGT-M)-were excluded from analysis. The primary outcome was live birth rate and secondary outcomes were clinical pregnancy rate and miscarriage rate. Multivariate logistic regression analysis with live birth as a dependent variable and maternal and paternal age class as independent variables was performed. RESULTS During the study period there were 4833 cycles, involving 4271 men, eligible for analysis; 1974/4833 (40.8%, 95% confiene intervals [CI] 39.5-42.2%) cycles resulted in a live birth. A significantly lower proportion of men over 51 years met World Health Organization semen analysis criteria (56/133, [42.1%, 95% CI 34.1-50.6]) compared with men under 51 years of age (2530/4138 [61.1%, 95% CI 60.0-62.6]) (p = 0.001). Both maternal and paternal age were retained in the multivariate model and for all maternal age subgroups the probability of live birth decreased with paternal age over 50 years (odds ratio [OR] 0.674, 95% CI 0.482-0.943) (p = 0.021). Paternal age over 50 years was not an independent predictor of miscarriage (OR 0.678, 95% CI 0.369-1.250) (p = 0.214). CONCLUSIONS Paternal age over 50 significantly affects the chance of achieving a live birth following ART. Paternal age does not independently affect the risk of miscarriage following ART. There should be a public health message for men not to delay fatherhood.
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Affiliation(s)
- Guy Morris
- Centre for Reproductive and Genetic Health, London, UK.,Reproductive Medicine Unit, University College London Hospitals NHS Foundation Trust, London, UK
| | - Dimitrios Mavrelos
- Centre for Reproductive and Genetic Health, London, UK.,Reproductive Medicine Unit, University College London Hospitals NHS Foundation Trust, London, UK
| | - Rabi Odia
- Centre for Reproductive and Genetic Health, London, UK
| | | | | | - Ephia Yasmin
- Centre for Reproductive and Genetic Health, London, UK.,Reproductive Medicine Unit, University College London Hospitals NHS Foundation Trust, London, UK
| | - Wael Saab
- Centre for Reproductive and Genetic Health, London, UK
| | - Paul Serhal
- Centre for Reproductive and Genetic Health, London, UK
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Mignini Renzini M, Dal Canto M, Guglielmo MC, Garcia D, De Ponti E, La Marca A, Vassena R, Buratini J. Sperm donation: an alternative to improve post-ICSI live birth rates in advanced maternal age patients. Hum Reprod 2021; 36:2148-2156. [PMID: 34143887 DOI: 10.1093/humrep/deab148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/25/2021] [Indexed: 01/26/2023] Open
Abstract
STUDY QUESTION Can sperm donation increase live birth rates following ICSI in advanced maternal age (AMA) patients? SUMMARY ANSWER Sperm donation increases the live birth rate in AMA ICSI cycles. WHAT IS KNOWN ALREADY In ICSI practice, sperm donation has been predominantly applied to overcome male infertility. The involvement of paternal age and lower sperm quality in the severe reduction in fertility observed in AMA patients remains to be clarified. STUDY DESIGN, SIZE, DURATION Retrospective multicenter cohort study including data generated between 2015 and 2019 from 755 ICSI cycles achieving a fresh embryo transfer, of which 337 were first homologous cycles (normozoospermic partner sperm and homologous oocytes) and 418 were first sperm donation cycles (donor sperm and homologous oocytes). The association of sperm origin (partner vs donor) with live birth was assessed by multivariate analysis in non-AMA (<37 years, n = 278) and AMA (≥37 years, n = 477) patients, separately, including in the model all variables previously found to be associated with live birth in a univariate analysis (number of MII oocytes recovered, number of embryos transferred, and maternal age). ICSI outcomes were compared between sperm donation and homologous cycles in overall, non-AMA and AMA patients. PARTICIPANTS/MATERIALS, SETTING, METHODS The study was conducted in three fertility clinics and included 755 Caucasian patients aged 24-42 years undergoing their first homologous or sperm donation ICSI cycle achieving a fresh embryo transfer. MAIN RESULTS AND THE ROLE OF CHANCE The multivariate analysis revealed that sperm donation was positively associated with the likelihood of a live birth independently of all other variables tested in AMA (P = 0.02), but not in non-AMA patients. Live birth, delivery, and miscarriage rates differed substantially between sperm donation and homologous AMA cycles; live birth and delivery rates were 70-75% higher (25.4% vs 14.5% and 22.5% vs 13.5%, respectively; P < 0.01), while miscarriage occurrence was less than half (18.0% vs 39.5%; P < 0.01) in sperm donation compared to homologous AMA cycles. LIMITATIONS, REASONS FOR CAUTION This study is limited by its retrospective nature, differences in patients profiles between sperm donation and homologous-control groups and varying proportion of donor cycles between fertility centers, although these variations have been controlled for in the statistical analysis. WIDER IMPLICATIONS OF THE FINDINGS The findings suggest that sperm donation increases live birth rates while reducing miscarriage occurrence in AMA patients, and thus may be a valid strategy to improve ICSI outcomes in this growing and challenging patient group. STUDY FUNDING/COMPETING INTEREST(S) N/A. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- M Mignini Renzini
- Clinica EUGIN, Modena, Italy.,Biogenesi Reproductive Medicine Centre, Istituti Clinici Zucchi, Monza, Italy
| | - M Dal Canto
- Clinica EUGIN, Modena, Italy.,Biogenesi Reproductive Medicine Centre, Istituti Clinici Zucchi, Monza, Italy
| | - M C Guglielmo
- Clinica EUGIN, Modena, Italy.,Biogenesi Reproductive Medicine Centre, Istituti Clinici Zucchi, Monza, Italy
| | | | - E De Ponti
- ASST Monza, Department of Medical Physics, Monza, Italy
| | - A La Marca
- Clinica EUGIN, Modena, Italy.,Department of Medical and Surgical Sciences of the Mother, Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | | | - J Buratini
- Clinica EUGIN, Modena, Italy.,Biogenesi Reproductive Medicine Centre, Istituti Clinici Zucchi, Monza, Italy.,Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University, Botucatu, Brazil
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Molinaro C, Martoriati A, Cailliau K. Proteins from the DNA Damage Response: Regulation, Dysfunction, and Anticancer Strategies. Cancers (Basel) 2021; 13:3819. [PMID: 34359720 PMCID: PMC8345162 DOI: 10.3390/cancers13153819] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022] Open
Abstract
Cells respond to genotoxic stress through a series of complex protein pathways called DNA damage response (DDR). These monitoring mechanisms ensure the maintenance and the transfer of a correct genome to daughter cells through a selection of DNA repair, cell cycle regulation, and programmed cell death processes. Canonical or non-canonical DDRs are highly organized and controlled to play crucial roles in genome stability and diversity. When altered or mutated, the proteins in these complex networks lead to many diseases that share common features, and to tumor formation. In recent years, technological advances have made it possible to benefit from the principles and mechanisms of DDR to target and eliminate cancer cells. These new types of treatments are adapted to the different types of tumor sensitivity and could benefit from a combination of therapies to ensure maximal efficiency.
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Affiliation(s)
| | | | - Katia Cailliau
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (C.M.); (A.M.)
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Oocyte ability to repair sperm DNA fragmentation: the impact of maternal age on intracytoplasmic sperm injection outcomes. Fertil Steril 2021; 116:123-129. [DOI: 10.1016/j.fertnstert.2020.10.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/30/2020] [Accepted: 10/12/2020] [Indexed: 12/13/2022]
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Winship AL, Griffiths M, Lliberos Requesens C, Sarma U, Phillips KA, Hutt KJ. The PARP inhibitor, olaparib, depletes the ovarian reserve in mice: implications for fertility preservation. Hum Reprod 2021; 35:1864-1874. [PMID: 32604417 DOI: 10.1093/humrep/deaa128] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 04/15/2020] [Indexed: 01/05/2023] Open
Abstract
STUDY QUESTION What is the impact of the poly(ADP-ribose) polymerase (PARP) inhibitor, olaparib, alone or in combination with chemotherapy on the ovary in mice? SUMMARY ANSWER Olaparib treatment, when administered alone, depletes primordial follicle oocytes, but olaparib does not exacerbate chemotherapy-mediated ovarian follicle loss in mice. WHAT IS KNOWN ALREADY The ovary contains a finite number of oocytes stored within primordial follicles, which give rise to all mature ovulatory oocytes. Unfortunately, they are highly sensitive to exogenous DNA damaging insults, such as cytotoxic cancer treatments. Members of the PARP family of enzymes are central to the repair of single-strand DNA breaks. PARP inhibitors have shown promising clinical efficacy in reducing tumour burden, by blocking DNA repair capacity. Olaparib is a PARP1/2 inhibitor recently FDA-approved for treatment of BRCA1 and BRCA2 mutation carriers with metastatic breast cancer. It is currently being investigated as an adjunct to standard treatment at an earlier stage, potentially curable, BRCA1- and BRCA2-associated breast cancer which affects reproductive age women. Despite this, there is no preclinical or clinical information regarding the potential impacts of olaparib on the ovary or on female fertility. Unfortunately, it may be many years before clinical data on fertility outcomes for women treated with PARP inhibitors becomes available, highlighting the importance of rigorous preclinical research using animal models to establish the potential for new cancer therapies to affect the ovary in humans. We aimed to comprehensively determine the impact of olaparib alone, or following chemotherapy, on the ovary in mice. STUDY DESIGN, SIZE, DURATION On Day 0, mice (n = 5/treatment group) were administered a single intraperitoneal dose of cyclophosphamide (75 mg/kg/body weight), doxorubicin (10 mg/kg), carboplatin (80 mg/kg), paclitaxel (7.5 mg/kg) or vehicle control. From Days 1 to 28, mice were administered subcutaneous olaparib (50 mg/kg) or vehicle control. This regimen is proven to reduce tumour burden in preclinical mouse studies and is also physiologically relevant for women. PARTICIPANTS/MATERIALS, SETTING, METHODS Adult female wild-type C57BL6/J mice at peak fertility (8 weeks) were administered a single intraperitoneal dose of chemotherapy, or vehicle, then either subcutaneous olaparib or vehicle for 28 days. Vaginal smears were performed on each animal for 14 consecutive days from Days 15 to 28 to monitor oestrous cycling. At 24 h after final treatment, ovaries were harvested for follicle enumeration and immunohistochemical analysis of primordial follicle remnants (FOXL2 expressing granulosa cells), DNA damage (γH2AX) and analysis of apoptosis by TUNEL assay. Serum was collected to measure circulating anti-Müllerian hormone (AMH) concentrations by ELISA. MAIN RESULTS AND THE ROLE OF CHANCE Olaparib significantly depleted primordial follicles by 36% compared to the control (P < 0.05) but had no impact on other follicle classes, serum AMH, corpora lutea number (indicative of ovulation) or oestrous cycling. Primordial follicle remnants were rarely detected in control ovaries but were significantly elevated in ovaries from mice treated with olaparib alone (P < 0.05). Similarly, DNA damage denoted by γH2AX foci was completely undetectable in primordial follicles of control animals but was observed in ∼10% of surviving primordial follicle oocytes in mice treated with olaparib alone. These observations suggest that functional PARPs are essential for primordial follicle oocyte maintenance and survival. Olaparib did not exacerbate chemotherapy-mediated follicle depletion in the wild-type mouse ovary. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION This study was performed in mice, so the findings may not translate to women and further studies utilizing human ovarian tissue and sera samples should be performed in the future. Only one long-term time point was analysed, therefore olaparib-mediated follicle damage should be assessed at more immediate time points in the future to support our mechanistic findings. WIDER IMPLICATIONS OF THE FINDINGS Olaparib dramatically depleted primordial follicles and this could be attributed to loss of intrinsic PARP-mediated DNA repair mechanisms. Importantly, diminished ovarian reserve can result in premature ovarian insufficiency and infertility. Notably, the extent of follicle depletion might be enhanced in BRCA1 and BRCA2 mutation carriers, and this is the subject of current investigations. Together, our data suggest that fertility preservation options should be considered for young women prior to olaparib treatment, and that human studies of this issue should be prioritized. STUDY FUNDING/COMPETING INTEREST(S) This work was made possible through Victorian State Government Operational Infrastructure Support and Australian Government NHMRC IRIISS. This work was supported by funding from the National Health and Medical Research Council (NHMRC); (K.J.H. #1050130) (A.L.W. #1120300). K.A.P. is a National Breast Cancer Foundation Fellow (Australia-PRAC-17-004). K.A.P. is the Breast Cancer Trials (Australia) Study Chair for the OlympiA clinical trial sponsored by AstraZeneca, the manufacturer of olaparib. All other authors declare no competing financial or other interests.
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Affiliation(s)
- Amy L Winship
- Ovarian Biology Laboratory, Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Stem Cells and Development Program, Monash University, Clayton, VIC 3800, Australia
| | - Meaghan Griffiths
- Ovarian Biology Laboratory, Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Stem Cells and Development Program, Monash University, Clayton, VIC 3800, Australia
| | - Carolina Lliberos Requesens
- Ovarian Biology Laboratory, Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Stem Cells and Development Program, Monash University, Clayton, VIC 3800, Australia
| | - Urooza Sarma
- Ovarian Biology Laboratory, Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Stem Cells and Development Program, Monash University, Clayton, VIC 3800, Australia
| | - Kelly-Anne Phillips
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC 3000, Australia.,Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Karla J Hutt
- Ovarian Biology Laboratory, Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Stem Cells and Development Program, Monash University, Clayton, VIC 3800, Australia
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Li J, Long H, Cong Y, Gao H, Lyu Q, Yu S, Kuang Y. Quercetin prevents primordial follicle loss via suppression of PI3K/Akt/Foxo3a pathway activation in cyclophosphamide-treated mice. Reprod Biol Endocrinol 2021; 19:63. [PMID: 33892727 PMCID: PMC8063466 DOI: 10.1186/s12958-021-00743-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/11/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Chemotherapy improves the survival rates of patients with various cancers but often causes some adverse effects, including ovarian damage, characterised by a decrease in primordial follicle stockpiles. Recent studies have revealed that chemotherapy may stimulate the PI3K signalling pathway, thereby resulting in accelerated primordial follicle activation and a decreased ovarian reserve. Quercetin is an inhibitor of the PI3K pathway; however, its protective effects against chemotherapy-induced follicle loss in mice have not been established. In this study, the effects of quercetin in a mouse model of cyclophosphamide-induced ovarian dysfunction were investigated. METHODS C57BL/6 female mice were used for the study. Paraffin sections of mouse ovaries (n = 30 mice) were stained with haematoxylin and eosin for differential follicle counts. Apoptosis (n = 5 mice per group) was evaluated by TUNEL assay. Immunohistochemical staining for ki67 and Foxo3a (n = 5 mice per group) was performed to evaluate the activation of primordial follicles. The role of the PI3K signalling pathway in the ovaries (n = 45 mice) was assessed by western blotting. RESULTS Quercetin attenuated the cyclophosphamide-induced reduction in dormant primordial follicles. Analysis of the PI3K/Akt/Foxo3a pathway showed that quercetin decreased the phosphorylation of proteins that stimulate follicle activation in cyclophosphamide-induced ovaries. Furthermore, quercetin prevented cyclophosphamide-induced apoptosis in early growing follicles and early antral follicles, maintained anti-Müllerian hormone levels secreted by these follicles, and preserved the quiescence of the primordial follicle pool, as determined by intranuclear Foxo3a staining. CONCLUSIONS Quercetin attenuates cyclophosphamide-induced follicle loss by preventing the phosphorylation of PI3K/Akt/Foxo3a pathway members and maintaining the anti-Müllerian hormone level through reduced apoptosis in growing follicles. Accordingly, quercetin is expected to improve fertility preservation and the prevention of endocrine-related side effects of chemotherapy.
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Affiliation(s)
- Jianghui Li
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Zhizaoju Road no. 639, Huangpu District, Shanghai, People's Republic of China
| | - Hui Long
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Zhizaoju Road no. 639, Huangpu District, Shanghai, People's Republic of China
| | - Yanyan Cong
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Zhizaoju Road no. 639, Huangpu District, Shanghai, People's Republic of China
| | - Hongyuan Gao
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Zhizaoju Road no. 639, Huangpu District, Shanghai, People's Republic of China
| | - Qifeng Lyu
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Zhizaoju Road no. 639, Huangpu District, Shanghai, People's Republic of China
| | - Sha Yu
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Zhizaoju Road no. 639, Huangpu District, Shanghai, People's Republic of China.
| | - Yanping Kuang
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Zhizaoju Road no. 639, Huangpu District, Shanghai, People's Republic of China.
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Telfer EE, Andersen CY. In vitro growth and maturation of primordial follicles and immature oocytes. Fertil Steril 2021; 115:1116-1125. [PMID: 33823993 DOI: 10.1016/j.fertnstert.2021.03.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/02/2021] [Accepted: 03/02/2021] [Indexed: 12/18/2022]
Abstract
Cryopreservation of ovarian tissue to preserve the fertility of girls and young women at high risk of sterility is now widely practiced. Pieces of cryopreserved ovarian cortex can be thawed and autografted to restore fertility, but because of the risks of reintroduction of the cancer, transplantation may not be possible for girls and women with blood-borne leukemias or cancers with a high risk of ovarian metastasis. Cryopreserved ovarian tissue contains mainly primordial follicles but also provides access to immature oocytes from small antral follicles, which may be matured in vitro to provide an additional source of mature oocytes. So in cases in which transplantation is contraindicated, fertility restoration could be safely achieved in the laboratory either by in vitro maturation (IVM) of oocytes aspirated from growing follicles or by the complete in vitro growth (IVG) and maturation (IVM) of primordial follicles to produce fertile metaphase II (MII) oocytes. The development of IVM and IVG methods to support all stages of oocytes available within ovarian tissue will maximize the potential for all patients undergoing fertility preservation.
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Affiliation(s)
- Evelyn E Telfer
- Institute of Cell Biology, The University of Edinburgh, Edinburgh EH8 8XE, Scotland.
| | - Claus Yding Andersen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health and Medical Science, University of Copenhagen, DK-2100 Copenhagen, Denmark
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Cryopreservation of both male and female gametes leads to reduced embryo development and implantation potential. ZYGOTE 2021; 29:377-382. [PMID: 33731233 DOI: 10.1017/s0967199421000149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The objective of this study was to investigate the effect of oocyte and sperm cryopreservation on donated eggs submitted to intracytoplasmic sperm injection (ICSI) cycles. Medical charts of 122 oocyte recipients undergoing 152 oocyte recipient ICSI cycles, from 2017 to 2018, in a private university-affiliated in vitro fertilization (IVF) centre, were reviewed in this historical cohort study. Cycles were divided into four groups according to the gamete status: the FO/FS Group, recipients in which fresh oocytes were injected with fresh sperm (n = 19); the FO/CrS Group, recipients in which fresh oocytes were injected with cryopreserved sperm (n = 14); the CrO/FS Group, recipients in which cryopreserved oocytes were injected with fresh sperm (n = 85); and the CrO/CrS Group, recipients in which cryopreserved oocytes were injected with cryopreserved sperm (n = 34). Generalized mixed models fit by restricted maximum likelihood, followed by Bonferroni post hoc test for the comparison of means amongst groups were used to investigate the effect of cryopreservation on recipient ICSI outcomes. The results were expressed as mean differences with 95% confidence intervals and P-values. The main outcome measure was the implantation rate. Normal day 3 cleavage speed, blastocyst development and implantation rates were significantly lower in the CrO/CrS Group compared with the FO/FS Group. In conclusion, embryo developmental competence and implantation potential were reduced when vitrified oocytes were injected with frozen sperm in an egg-sharing donation programme.
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van Marion ES, Speksnijder JP, Hoek J, Boellaard WPA, Dinkelman-Smit M, Chavli EA, Steegers-Theunissen RPM, Laven JSE, Baart EB. Time-lapse imaging of human embryos fertilized with testicular sperm reveals an impact on the first embryonic cell cycle. Biol Reprod 2021; 104:1218-1227. [PMID: 33690817 PMCID: PMC8181962 DOI: 10.1093/biolre/ioab031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/08/2021] [Accepted: 02/18/2021] [Indexed: 11/14/2022] Open
Abstract
Testicular sperm is increasingly used during in vitro fertilization treatment. Testicular sperm has the ability to fertilize the oocyte after intracytoplasmic sperm injection (ICSI), but they have not undergone maturation during epididymal transport. Testicular sperm differs from ejaculated sperm in terms of chromatin maturity, incidence of DNA damage, and RNA content. It is not fully understood what the biological impact is of using testicular sperm, on fertilization, preimplantation embryo development, and postimplantation development. Our goal was to investigate differences in human preimplantation embryo development after ICSI using testicular sperm (TESE-ICSI) and ejaculated sperm. We used time-lapse embryo culture to study these possible differences. Embryos (n = 639) originating from 208 couples undergoing TESE-ICSI treatment were studied and compared to embryos (n = 866) originating from 243 couples undergoing ICSI treatment with ejaculated sperm. Using statistical analysis with linear mixed models, we observed that pronuclei appeared 0.55 h earlier in TESE-ICSI embryos, after which the pronuclear stage lasted 0.55 h longer. Also, significantly more TESE-ICSI embryos showed direct unequal cleavage from the 1-cell stage to the 3-cell stage. TESE-ICSI embryos proceeded faster through the cleavage divisions to the 5- and the 6-cell stage, but this effect disappeared when we adjusted our model for maternal factors. In conclusion, sperm origin affects embryo development during the first embryonic cell cycle, but not developmental kinetics to the 8-cell stage. Our results provide insight into the biological differences between testicular and ejaculated sperm and their impact during human fertilization.
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Affiliation(s)
- E S van Marion
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - J P Speksnijder
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - J Hoek
- Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - W P A Boellaard
- Department of Urology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - M Dinkelman-Smit
- Department of Urology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - E A Chavli
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - R P M Steegers-Theunissen
- Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - J S E Laven
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - E B Baart
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Developmental Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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Cotena M, Auffan M, Tassistro V, Resseguier N, Rose J, Perrin J. In Vitro Co-Exposure to CeO 2 Nanomaterials from Diesel Engine Exhaust and Benzo( a)Pyrene Induces Additive DNA Damage in Sperm and Cumulus Cells but Not in Oocytes. NANOMATERIALS 2021; 11:nano11020478. [PMID: 33668575 PMCID: PMC7918929 DOI: 10.3390/nano11020478] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/03/2021] [Accepted: 02/07/2021] [Indexed: 01/31/2023]
Abstract
Benzo(a)pyrene (BaP) is a recognized reprotoxic compound and the most widely investigated polycyclic aromatic hydrocarbon in ambient air; it is widespread by the incomplete combustion of fossil fuels along with cerium dioxide nanomaterials (CeO2 NMs), which are used in nano-based diesel additives to decrease the emission of toxic compounds and to increase fuel economy. The toxicity of CeO2 NMs on reproductive organs and cells has also been shown. However, the effect of the combined interactions of BaP and CeO2 NMs on reproduction has not been investigated. Herein, human and rat gametes were exposed in vitro to combusted CeO2 NMs or BaP or CeO2 NMs and BaP in combination. CeO2 NMs were burned at 850 °C prior to mimicking their release after combustion in a diesel engine. We demonstrated significantly higher amounts of DNA damage after exposure to combusted CeO2 NMs (1 µg·L-1) or BaP (1.13 µmol·L-1) in all cell types considered compared to unexposed cells. Co-exposure to the CeO2 NMs-BaP mixture induced additive DNA damage in sperm and cumulus cells, whereas no additive effect was observed in rat oocytes. This result could be related to the structural protection of the oocyte by cumulus cells and to the oocyte's efficient system to repair DNA damage compared to that of cumulus and sperm cells.
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Affiliation(s)
- Martina Cotena
- IMBE, CNRS, IRD, Avignon Université, Aix Marseille Univ., 13005 Marseille, France; (M.C.); (V.T.)
- CEREGE, CNRS, Aix Marseille Univ., IRD, INRAE, Coll France, 13545 Aix-en-Provence, France; (M.A.); (J.R.)
| | - Mélanie Auffan
- CEREGE, CNRS, Aix Marseille Univ., IRD, INRAE, Coll France, 13545 Aix-en-Provence, France; (M.A.); (J.R.)
- Civil and Environmental Engineering, Duke University, Durham, NC 27708, USA
| | - Virginie Tassistro
- IMBE, CNRS, IRD, Avignon Université, Aix Marseille Univ., 13005 Marseille, France; (M.C.); (V.T.)
| | - Noémie Resseguier
- Department of Biostatistics and Public Health, La Timone Hospital, 13005 Marseille, France;
| | - Jérôme Rose
- CEREGE, CNRS, Aix Marseille Univ., IRD, INRAE, Coll France, 13545 Aix-en-Provence, France; (M.A.); (J.R.)
- Civil and Environmental Engineering, Duke University, Durham, NC 27708, USA
| | - Jeanne Perrin
- IMBE, CNRS, IRD, Avignon Université, Aix Marseille Univ., 13005 Marseille, France; (M.C.); (V.T.)
- Laboratory of Reproduction Biology-CECOS, Department of Gynecology, Obstetrics and Reproductive Medicine, AP-HM La Conception, Pôle Femmes Parents Enfants, 13005 Marseille, France
- Correspondence:
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Navarro-Pando JM, Alcocer-Gómez E, Castejón-Vega B, Navarro-Villarán E, Condés-Hervás M, Mundi-Roldan M, Muntané J, Pérez-Pulido AJ, Bullon P, Wang C, Hoffman HM, Sanz A, Mbalaviele G, Ryffel B, Cordero MD. Inhibition of the NLRP3 inflammasome prevents ovarian aging. SCIENCE ADVANCES 2021; 7:7/1/eabc7409. [PMID: 33523841 PMCID: PMC7775749 DOI: 10.1126/sciadv.abc7409] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 11/09/2020] [Indexed: 05/29/2023]
Abstract
Inflammation is a hallmark of aging and is negatively affecting female fertility. In this study, we evaluate the role of the NLRP3 inflammasome in ovarian aging and female fertility. Age-dependent increased expression of NLRP3 in the ovary was observed in WT mice during reproductive aging. High expression of NLRP3, caspase-1, and IL-1β was also observed in granulosa cells from patients with ovarian insufficiency. Ablation of NLRP3 improved the survival and pregnancy rates and increased anti-Müllerian hormone levels and autophagy rates in ovaries. Deficiency of NLRP3 also reduced serum FSH and estradiol levels. Consistent with these results, pharmacological inhibition of NLRP3 using a direct NLRP3 inhibitor, MCC950, improved fertility in female mice to levels comparable to those of Nlrp3-/- mice. These results suggest that the NLRP3 inflammasome is implicated in the age-dependent loss of female fertility and position this inflammasome as a potential new therapeutic target for the treatment of infertility.
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Affiliation(s)
- José M Navarro-Pando
- Cátedra de Reproducción y Genética Humana del Instituto para el Estudio de la Biología de la Reproducción Humana (INEBIR)-Universidad Europea del Atlántico (UNEATLANTICO)-Fundación Universitaria Iberoamericana (FUNIBER), Seville, Spain
| | - Elísabet Alcocer-Gómez
- Departamento de Psicología Experimental, Facultad de Psicología, Universidad de Sevilla, Seville, Spain
| | - Beatriz Castejón-Vega
- Institute of Molecular, Cell and Systems Biology, University of Glasgow, Glasgow G12 8QQ, UK
| | - Elena Navarro-Villarán
- Institute of Biomedicine of Seville (IBiS), Hospital University Virgen del Rocío/CSIC/University of Seville, Seville, Spain
- Spanish Network for Biomedical Research in Hepatic and Digestive Diseases (CIBERehd), Carlos III Health Institute (ISCIII), Madrid, Spain
| | - Mónica Condés-Hervás
- Cátedra de Reproducción y Genética Humana del Instituto para el Estudio de la Biología de la Reproducción Humana (INEBIR)-Universidad Europea del Atlántico (UNEATLANTICO)-Fundación Universitaria Iberoamericana (FUNIBER), Seville, Spain
| | - María Mundi-Roldan
- Cátedra de Reproducción y Genética Humana del Instituto para el Estudio de la Biología de la Reproducción Humana (INEBIR)-Universidad Europea del Atlántico (UNEATLANTICO)-Fundación Universitaria Iberoamericana (FUNIBER), Seville, Spain
| | - Jordi Muntané
- Institute of Biomedicine of Seville (IBiS), Hospital University Virgen del Rocío/CSIC/University of Seville, Seville, Spain
- Spanish Network for Biomedical Research in Hepatic and Digestive Diseases (CIBERehd), Carlos III Health Institute (ISCIII), Madrid, Spain
- Department of General Surgery, Hospital University Virgen del Rocío/CSIC/University of Seville/IBIS, Seville, Spain
| | - Antonio J Pérez-Pulido
- Centro Andaluz de Biologia del Desarrollo (CABD, UPO-CSIC-JA), Facultad de Ciencias Experimentales (Área de Genética), Universidad Pablo de Olavide, 41013 Seville, Spain
| | - Pedro Bullon
- Institute of Molecular, Cell and Systems Biology, University of Glasgow, Glasgow G12 8QQ, UK
| | - Chun Wang
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Hal M Hoffman
- Division of Pediatric Allergy, Immunology, and Rheumatology, Rady Children's Hospital and University of California San Diego, La Jolla, CA 92093, USA
| | - Alberto Sanz
- Institute of Molecular, Cell and Systems Biology, University of Glasgow, Glasgow G12 8QQ, UK
| | - Gabriel Mbalaviele
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Bernhard Ryffel
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orléans, France
- IDM, University of Cape Town, Cape Town, South Africa
| | - Mario D Cordero
- Cátedra de Reproducción y Genética Humana del Instituto para el Estudio de la Biología de la Reproducción Humana (INEBIR)-Universidad Europea del Atlántico (UNEATLANTICO)-Fundación Universitaria Iberoamericana (FUNIBER), Seville, Spain.
- Instituto de Investigación e Innovación en Ciencias Biomédicas de Cádiz (INiBICA), Cadiz, Spain
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Tissue-Specific DNA Repair Activity of ERCC-1/XPF-1. Cell Rep 2021; 34:108608. [PMID: 33440146 DOI: 10.1016/j.celrep.2020.108608] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 10/30/2020] [Accepted: 12/15/2020] [Indexed: 01/14/2023] Open
Abstract
Hereditary DNA repair defects affect tissues differently, suggesting that in vivo cells respond differently to DNA damage. Knowledge of the DNA damage response, however, is largely based on in vitro and cell culture studies, and it is currently unclear whether DNA repair changes depending on the cell type. Here, we use in vivo imaging of the nucleotide excision repair (NER) endonuclease ERCC-1/XPF-1 in C. elegans to demonstrate tissue-specific NER activity. In oocytes, XPF-1 functions as part of global genome NER (GG-NER) to ensure extremely rapid removal of DNA-helix-distorting lesions throughout the genome. In contrast, in post-mitotic neurons and muscles, XPF-1 participates in NER of transcribed genes only. Strikingly, muscle cells appear more resistant to the effects of DNA damage than neurons. These results suggest a tissue-specific organization of the DNA damage response and may help to better understand pleiotropic and tissue-specific consequences of accumulating DNA damage.
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Horta F, Ravichandran A, Catt S, Vollenhoven B, Temple-Smith P. Ageing and ovarian stimulation modulate the relative levels of transcript abundance of oocyte DNA repair genes during the germinal vesicle-metaphase II transition in mice. J Assist Reprod Genet 2021; 38:55-69. [PMID: 33067741 PMCID: PMC7822980 DOI: 10.1007/s10815-020-01981-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/13/2020] [Indexed: 10/23/2022] Open
Abstract
PURPOSE Oocyte quality and reproductive outcome are negatively affected by advanced maternal age, ovarian stimulation and method of oocyte maturation during assisted reproduction; however, the mechanisms responsible for these associations are not fully understood. The aim of this study was to compare the effects of ageing, ovarian stimulation and in-vitro maturation on the relative levels of transcript abundance of genes associated with DNA repair during the transition of germinal vesicle (GV) to metaphase II (MII) stages of oocyte development. METHODS The relative levels of transcript abundance of 90 DNA repair-associated genes was compared in GV-stage and MII-stage oocytes from unstimulated and hormone-stimulated ovaries from young (5-8-week-old) and old (42-45-week-old) C57BL6 mice. Ovarian stimulation was conducted using pregnant mare serum gonadotropin (PMSG) or anti-inhibin serum (AIS). DNA damage response was quantified by immunolabeling of the phosphorylated histone variant H2AX (γH2AX). RESULTS The relative transcript abundance in DNA repair genes was significantly lower in MII oocytes compared to GV oocytes in young unstimulated and PMSG stimulated but was higher in AIS-stimulated mice. Interestingly, an increase in the relative level of transcript abundance of DNA repair genes was observed in MII oocytes from older mice in unstimulated, PMSG-stimulated and AIS-stimulated mice. Decreased γH2AX levels were found in both GV oocytes (82.9%) and MII oocytes (37.5%) during ageing in both ovarian stimulation types used (PMSG/AIS; p < 0.05). CONCLUSIONS In conclusion, DNA repair relative levels of transcript abundance are altered by maternal age and the method of ovarian stimulation during the GV-MII transition in oocytes.
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Affiliation(s)
- Fabrizzio Horta
- Education Program in Reproduction and Development, EPRD, Department of Obstetrics and Gynecology, School of Clinical Science, Monash University, Melbourne, VIC, 3168, Australia.
- Monash IVF, Melbourne, VIC, 3168, Australia.
| | - Aravind Ravichandran
- Education Program in Reproduction and Development, EPRD, Department of Obstetrics and Gynecology, School of Clinical Science, Monash University, Melbourne, VIC, 3168, Australia
| | - Sally Catt
- Education Program in Reproduction and Development, EPRD, Department of Obstetrics and Gynecology, School of Clinical Science, Monash University, Melbourne, VIC, 3168, Australia
| | - Beverley Vollenhoven
- Education Program in Reproduction and Development, EPRD, Department of Obstetrics and Gynecology, School of Clinical Science, Monash University, Melbourne, VIC, 3168, Australia
- Monash IVF, Melbourne, VIC, 3168, Australia
- Women's and Newborn Program, Monash Health, Melbourne, Australia
| | - Peter Temple-Smith
- Education Program in Reproduction and Development, EPRD, Department of Obstetrics and Gynecology, School of Clinical Science, Monash University, Melbourne, VIC, 3168, Australia
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Heddar A, Misrahi M. Concerns regarding the potentially causal role of FANCA heterozygous variants in human primary ovarian insufficiency. Hum Genet 2020; 140:691-694. [PMID: 33151384 DOI: 10.1007/s00439-020-02232-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 10/20/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Abdelkader Heddar
- Faculté de Médecine; Unité de Génétique Moléculaire Des Maladies Métaboliques Et de La Reproduction, APHP Hôpitaux Universitaires Paris-Saclay, Université Paris Saclay, Hôpital Bicêtre, 94275, Le Kremlin-Bicêtre, France.,Université Paris Saclay, UMR-S 1193, INSERM, Hôpital Paul Brousse, Villejuif, France
| | - Micheline Misrahi
- Faculté de Médecine; Unité de Génétique Moléculaire Des Maladies Métaboliques Et de La Reproduction, APHP Hôpitaux Universitaires Paris-Saclay, Université Paris Saclay, Hôpital Bicêtre, 94275, Le Kremlin-Bicêtre, France. .,Université Paris Saclay, UMR-S 1193, INSERM, Hôpital Paul Brousse, Villejuif, France.
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50
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Khokhlova EV, Fesenko ZS, Sopova JV, Leonova EI. Features of DNA Repair in the Early Stages of Mammalian Embryonic Development. Genes (Basel) 2020; 11:genes11101138. [PMID: 32992616 PMCID: PMC7599644 DOI: 10.3390/genes11101138] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/20/2020] [Accepted: 09/25/2020] [Indexed: 12/12/2022] Open
Abstract
Cell repair machinery is responsible for protecting the genome from endogenous and exogenous effects that induce DNA damage. Mutations that occur in somatic cells lead to dysfunction in certain tissues or organs, while a violation of genomic integrity during the embryonic period often leads to death. A mammalian embryo’s ability to respond to damaged DNA and repair it, as well as its sensitivity to specific lesions, is still not well understood. In this review, we combine disparate data on repair processes in the early stages of preimplantation development in mammalian embryos.
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Affiliation(s)
- Evgenia V. Khokhlova
- Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.K.); (Z.S.F.); (J.V.S.)
- Institute of Cytology of the Russian Academy of Sciences, 194064 St. Petersburg, Russia
| | - Zoia S. Fesenko
- Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.K.); (Z.S.F.); (J.V.S.)
| | - Julia V. Sopova
- Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.K.); (Z.S.F.); (J.V.S.)
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Elena I. Leonova
- Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.K.); (Z.S.F.); (J.V.S.)
- Preclinical Research Center, University of Science and Technology, 1 Olympic Ave, 354340 Sochi, Russia
- Correspondence: ; Tel.: +8-(999)-232-92-58
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