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Zhu X, Li W, Lu M, Shang J, Zhou J, Lin L, Liu Y, Xing J, Zhang M, Zhao S, Lu J, Shi X. M 6A demethylase FTO-stabilized exosomal circBRCA1 alleviates oxidative stress-induced granulosa cell damage via the miR-642a-5p/FOXO1 axis. J Nanobiotechnology 2024; 22:367. [PMID: 38918838 PMCID: PMC11197183 DOI: 10.1186/s12951-024-02583-5] [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: 01/24/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND Premature ovarian insufficiency (POI) is an important cause of female infertility and seriously impacts the physical and psychological health of patients. Human umbilical cord mesenchymal stem cell-derived exosomes (HucMSCs-Exs, H-Exs) have exhibited protective effects on ovarian function with unclear mechanisms. METHODS A comprehensive analysis of the Gene Expression Omnibus (GEO) database were used to identify POI-associated circRNAs and miRNAs. The relationship between HucMSC-derived exosomal circBRCA1/miR-642a-5p/FOXO1 axis and POI was examined by RT-qPCR, Western blotting, reactive oxygen species (ROS) staining, senescence-associated β-gal (SA-β-gal) staining, JC-1 staining, TEM, oxygen consumption rate (OCR) measurements and ATP assay in vivo and in vitro. RT-qPCR detected the expression of circBRCA1 in GCs and serum of patients with normal ovarian reserve function (n = 50) and patients with POI (n = 50); then, the correlation of circBRCA1 with ovarian reserve function indexes was analyzed. RESULTS Herein, we found that circBRCA1 was decreased in the serum and ovarian granulosa cells (GCs) of patients with POI and was associated with decreased ovarian reserve. H-Exs improved the disorder of the estrous cycles and reproductive hormone levels, reduced the number of atretic follicles, and alleviated the apoptosis and senescence of GCs in rats with POI. Moreover, H-Exs mitigated mitochondrial damage and reversed the reduced circBRCA1 expression induced by oxidative stress in GCs. Mechanistically, FTO served as an eraser to increase the stability and expression of circBRCA1 by mediating the m6A demethylation of circBRCA1, and exosomal circBRCA1 sponged miR-642a-5p to block its interaction with FOXO1. CircBRCA1 insufficiency aggravated mitochondrial dysfunction, mimicking FTO or FOXO1 depletion effects, which was counteracted by miR-642a-5p inhibition. CONCLUSION H-Exs secreted circBRCA1 regulated by m6A modification, directly sponged miR-642a-5p to upregulate FOXO1, resisted oxidative stress injuries in GCs and protected ovarian function in rats with POI. Exosomal circBRCA1 supplementation may be a general prospect for the prevention and treatment of POI.
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Affiliation(s)
- Xiaolan Zhu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China.
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China.
- Reproductive Sciences Institute, Jiangsu University, Zhenjiang, China.
| | - Wenxin Li
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Minjun Lu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Junyu Shang
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jiamin Zhou
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Li Lin
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yueqin Liu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jie Xing
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Mengxue Zhang
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Shijie Zhao
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jingjing Lu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xuyan Shi
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, No. 20 Zhengdong Road, Zhenjiang, 212001, Jiangsu, China
- Department of Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
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Harada M. Cellular senescence in the pathogenesis of ovarian dysfunction. J Obstet Gynaecol Res 2024; 50:800-808. [PMID: 38412992 DOI: 10.1111/jog.15918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 02/17/2024] [Indexed: 02/29/2024]
Abstract
The follicular microenvironment is crucial for normal ovarian function, and intra-ovarian factors, in coordination with gonadotropins, contribute to its regulation. Recent research has revealed that the accumulation of senescent cells worsens the adverse environment of various tissues and plays critical roles in chronological aging and various pathological conditions. Cellular senescence involves cell-cycle arrest, a senescence-associated secretory phenotype (SASP), macromolecular damage, and dysmetabolism. In this review, I summarize the latest knowledge regarding the role of cellular senescence in pathological conditions in the ovary, in the context of reproduction. Specifically, cellular senescence is known to impair follicular and oocyte health in cisplatin- and cyclophosphamide-induced primary ovarian insufficiency and to contribute to the pathogenesis of polycystic ovary syndrome (PCOS). In addition, cellular senescence is induced during the decline in ovarian reserve that is associated with chronological aging, endometriosis, psychological stress, and obesity, but it remains unclear whether it plays a causative role in these conditions. Finally, I discuss the potential for use of cellular senescence as a novel therapeutic target. The modification of SASP using a senomorphic and/or the elimination of senescent cells using a senolytic represent promising therapeutic strategies. Further elucidation of the role of cellular senescence in the effects of various insults on ovarian reserve, including chronological aging, as well as in pathogenesis of ovarian pathologies, including PCOS, may facilitate a new era of reproductive medicine.
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Affiliation(s)
- Miyuki Harada
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Ju W, Zhao Y, Yu Y, Zhao S, Xiang S, Lian F. Mechanisms of mitochondrial dysfunction in ovarian aging and potential interventions. Front Endocrinol (Lausanne) 2024; 15:1361289. [PMID: 38694941 PMCID: PMC11061492 DOI: 10.3389/fendo.2024.1361289] [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: 12/25/2023] [Accepted: 03/22/2024] [Indexed: 05/04/2024] Open
Abstract
Mitochondria plays an essential role in regulating cellular metabolic homeostasis, proliferation/differentiation, and cell death. Mitochondrial dysfunction is implicated in many age-related pathologies. Evidence supports that the dysfunction of mitochondria and the decline of mitochondrial DNA copy number negatively affect ovarian aging. However, the mechanism of ovarian aging is still unclear. Treatment methods, including antioxidant applications, mitochondrial transplantation, emerging biomaterials, and advanced technologies, are being used to improve mitochondrial function and restore oocyte quality. This article reviews key evidence and research updates on mitochondrial damage in the pathogenesis of ovarian aging, emphasizing that mitochondrial damage may accelerate and lead to cellular senescence and ovarian aging, as well as exploring potential methods for using mitochondrial mechanisms to slow down aging and improve oocyte quality.
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Affiliation(s)
- Wenhan Ju
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuewen Zhao
- CReATe Fertility Centre, Toronto, ON, Canada
| | - Yi Yu
- Department of Reproduction and Genetics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shuai Zhao
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shan Xiang
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Fang Lian
- Department of Reproduction and Genetics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Liu S, Wang Y, Yang H, Tan J, Zhang J, Zi D. Pyrroloquinoline quinone promotes human mesenchymal stem cell-derived mitochondria to improve premature ovarian insufficiency in mice through the SIRT1/ATM/p53 pathway. Stem Cell Res Ther 2024; 15:97. [PMID: 38581065 PMCID: PMC10998350 DOI: 10.1186/s13287-024-03705-4] [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: 01/17/2024] [Accepted: 03/20/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND DNA damage and oxidative stress induced by chemotherapy are important factors in the onset of premature ovarian insufficiency (POI). Studies have shown that mitochondria derived from mesenchymal stem cells (MSC-Mito) are beneficial for age-related diseases, but their efficacy alone is limited. Pyrroloquinoline quinone (PQQ) is a potent antioxidant with significant antiaging and fertility enhancement effects. This study aimed to investigate the therapeutic effect of MSC-Mito in combination with PQQ on POI and the underlying mechanisms involved. METHODS A POI animal model was established in C57BL/6J mice by cyclophosphamide and busulfan. The effects of MSC-Mito and PQQ administration on the estrous cycle, ovarian pathological damage, sex hormone secretion, and oxidative stress in mice were evaluated using methods such as vaginal smears and ELISAs. Western blotting and immunohistochemistry were used to assess the expression of SIRT1, PGC-1α, and ATM/p53 pathway proteins in ovarian tissues. A cell model was constructed using KGN cells treated with phosphoramide mustard to investigate DNA damage and apoptosis through comet assays and flow cytometry. SIRT1 siRNA was transfected into KGN cells to further explore the role of the SIRT1/ATM/p53 pathway in combination therapy with MSC-Mito and PQQ for POI. RESULTS The combined treatment of MSC-Mito and PQQ significantly restored ovarian function and antioxidant capacity in mice with POI. This treatment also reduced the loss of follicles at various stages, improving the disrupted estrous cycle. In vitro experiments demonstrated that PQQ facilitated the proliferation of MitoTracker-labelled MSC-Mito, synergistically restoring mitochondrial function and inhibiting oxidative stress in combination with MSC-Mito. Both in vivo and in vitro, the combination of MSC-Mito and PQQ increased mitochondrial biogenesis mediated by SIRT1 and PGC-1α while inhibiting the activation of ATM and p53, consequently reducing DNA damage-mediated cell apoptosis. Furthermore, pretreatment of KGN cells with SIRT1 siRNA reversed nearly all the aforementioned changes induced by the combined treatment. CONCLUSIONS Our research findings indicate that PQQ facilitates MSC-Mito proliferation and, in combination with MSC-Mito, ameliorates chemotherapy-induced POI through the SIRT1/ATM/p53 signaling pathway.
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Affiliation(s)
- Shengjie Liu
- GuiZhou University Medical College, Guiyang, Guizhou Province, 550025, China
| | - Yuanmei Wang
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550004, China
| | - Hanlin Yang
- Department of Gynecology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, 550025, China
| | - Jun Tan
- Key Laboratory of Endemic and Ethnic Diseases and Key Laboratory of Molecular Biology, Ministry of Education, Guizhou Medical University, Guiyang, 550004, China
| | - Jingkaiwen Zhang
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550004, China
| | - Dan Zi
- Department of Gynecology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, 550025, China.
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He H, Wan N, Li Z, Zhang Z, Gao Z, Liu Q, Ma X, Zhang Y, Li R, Fu X, Qiu W. Short-term effects of exposure to ambient PM 2.5 and its components on hospital admissions for threatened and spontaneous abortions: A multicity case-crossover study in China. CHEMOSPHERE 2024; 350:141057. [PMID: 38158083 DOI: 10.1016/j.chemosphere.2023.141057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/09/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND The adverse effects of short-term exposure to PM2.5 and its components on hospital admissions for threatened and spontaneous abortions (TSAB) are still controversial. METHODS Data on daily hospitalizations for TSAB and PM2.5 and its components, including sulfate (SO42-), nitrate (NO3-), ammonium salt (NH4+), organic matter (OM), and black carbon (BC), were collected from January 2015 to December 2021 (total 2,557 days) in five cities in China. Case-crossover analyses were conducted to investigate the short-term associations between PM2.5 and its components and TSAB. Additionally, the modification effects by age (<35 and ≥35 years), season (cold and warm seasons), and the "Three-Year Action Plan to Win the Blue Sky Defense War" (before and after implementation) on the above associations were further conducted. RESULTS For each 10 μg/m3 (1 μg/m3 for BC) increase, the strongest relative risks (95% confidence intervals) of hospitalization for TSAB were 1.011 (1.001-1.021) for PM2.5 in lag02, 1.060 (1.003-1.120) for SO42- in lag02, 1.035 (1.000-1.070) for NO3- in lag02, 1.065 (1.009-1.124) for NH4+ in lag02, 1.047 (1.008-1.088) for OM in lag01 and 1.029 (1.005-1.054) for BC in lag02 (all P <0.05). Furthermore, significant modifying effects of age and the Action Plan were found. The effects of NO3- (lag2), NH4+ (lag2), and BC (lag2) were more pronounced in mothers aged ≥35 years and the effects of PM2.5 (lag4), NO3- (lag4), NH4+ (lag4), OM (lag4), and BC (lag4) was more pronounced in the period before the Action Plan was implemented (all P modification <0.05). CONCLUSION Short-term exposure to ambient PM2.5 and its components (SO42-, NO3-, NH4+, OM, and BC) was related to increased risks of hospitalization for TSAB. The effects were more pronounced in mothers aged ≥35 years and the period before the Action Plan.
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Affiliation(s)
- Heng He
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Na Wan
- Henan Key Laboratory of Fertility Protection and Aristogenesis, Luohe Central Hospital, Luohe, Henan 462000, China
| | - Zhenzhen Li
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Zihan Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Zesen Gao
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Qingdan Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Xiaolei Ma
- Henan Key Laboratory of Fertility Protection and Aristogenesis, Luohe Central Hospital, Luohe, Henan 462000, China
| | - Yuqing Zhang
- Henan Key Laboratory of Fertility Protection and Aristogenesis, Luohe Central Hospital, Luohe, Henan 462000, China
| | - Rongxiang Li
- Henan Key Laboratory of Fertility Protection and Aristogenesis, Luohe Central Hospital, Luohe, Henan 462000, China
| | - Xiuhong Fu
- Henan Key Laboratory of Fertility Protection and Aristogenesis, Luohe Central Hospital, Luohe, Henan 462000, China
| | - Weihong Qiu
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian 350122, China.
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Zhang CL, Zhang J, Tuersuntuoheti M, Zhou W, Han Z, Li X, Yang R, Zhang L, Zheng L, Liu S. Landscape genomics reveals adaptive divergence of indigenous sheep in different ecological environments of Xinjiang, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166698. [PMID: 37683864 DOI: 10.1016/j.scitotenv.2023.166698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 08/22/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
Sheep are important livestock animals that have evolved under various ecological pressures. Xinjiang is a region with diverse and harsh environments that have shaped many local sheep breeds with unique characteristics and environmental adaptability. However, these breeds are losing ecological flexibility due to the promotion of intensive farming practices. Here we sequenced 14 local sheep breeds from Xinjiang and analyzed their genetic structure and gene flow with other sheep breeds from neighboring regions. The Tibetan Plateau was the geographic origin of Xinjiang native sheep evolution. We performed genome-environment association analysis and identified Bio9: Mean Temperature of Driest Quarter and Bio15: Precipitation Seasonality as the key environmental factors affecting Xinjiang local sheep and the key genes involved in their survival and adaptation. We classified Xinjiang native sheep breeds into six groups based on their differential genes by pairwise selective sweep analysis and Community Network Analysis. We analyzed transcriptome expression data of 832 sheep tissues and detected tissue-specific enrichment of six group-specific genes in different biological systems. Our results revealed the genetic basis of year-round estrus, drought tolerance, hypoxia resistance, and cold tolerance traits of Xinjiang sheep breeds. Moreover, we proposed conservation strategies for Xinjiang local sheep breeds and provided theoretical guidance for breeding new sheep breeds under global extreme environments.
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Affiliation(s)
- Cheng-Long Zhang
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Jihu Zhang
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Mirenisa Tuersuntuoheti
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Wen Zhou
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Zhipeng Han
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Xiaopeng Li
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Ruizhi Yang
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Lulu Zhang
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Langman Zheng
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China
| | - Shudong Liu
- College of Animal Science and Technology, Tarim University, Xingfu Road, Alar 843300, Xinjiang, China; Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Xingfu Road, Alar 843300, Xinjiang, China.
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Shen C, Jiang Y, Lin J, He Y, Liu Y, Fang D. SIRT6 reduces the symptoms of premature ovarian failure and alleviates oxidative stress and apoptosis in granulosa cells by degrading p66SHC via H3K9AC. Gynecol Endocrinol 2023; 39:2250003. [PMID: 37634527 DOI: 10.1080/09513590.2023.2250003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/13/2023] [Accepted: 08/14/2023] [Indexed: 08/29/2023] Open
Abstract
CONTEXT Substantial evidence suggests that ovarian oxidative stress can result in severe ovarian dysfunction. OBJECTIVE The purpose of this article is to investigate the potential of SIRT6 in alleviating premature ovarian failure (POF) by inhibiting oxidative stress. METHODS To mimic POF, mice were administered daily subcutaneous injections of d-galactose. The levels of E2, FSH, LH, AMH, and progesterone in serum were measured, along with changes in follicles and SIRT6 levels. Mice were treated with the SIRT6 agonist MDL-800, SIRT6 levels, follicles, and aforementioned hormones were reassessed. The effects of MDL-800 on oxidative stress and apoptosis were subsequently identified. Primary granulosa cells were isolated from mice, and the effects of H2O2 and MDL-800 on cell viability, oxidative stress, SIRT6 level, and apoptosis were evaluated. In addition, the regulation of SIRT6 on H3K9AC/p66SHC was verified by examining changes in protein levels, promoter activity, and the reversal effects of p66SHC overexpression. RESULTS MDL-800 mitigated hormone fluctuations, reduced follicle depletion in ovarian tissue, and attenuated oxidative stress and apoptosis in mice. In vitro experiments demonstrated that MDL-800 enhanced the resilience of primary granulosa cells against H2O2, as evidenced by increased cell viability and reduced oxidative stress and apoptosis. Furthermore, SIRT6 was found to decrease H3K9AC and p66SHC levels, as well as attenuate p66SHC promoter activity. The protective effects of MDL-800 on cells were reversed upon p66SHC overexpression. CONCLUSION In summary, this study highlights that activation of SIRT6 can alleviate POF and reduce oxidative stress by degrading H3K9AC and suppressing p66Shc levels in granulosa cells.
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Affiliation(s)
- Chuan Shen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan, P.R. China
| | - Yongmei Jiang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan, P.R. China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Yibei He
- Department of Laboratory Medicine, Chengdu Chenghua District Maternal and Child Health Hospital, Chengdu, Sichuan, P.R. China
| | - Yue Liu
- Department of Laboratory Medicine, Chengdu Chenghua District Maternal and Child Health Hospital, Chengdu, Sichuan, P.R. China
| | - Dingzhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, P.R. China
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Shi YQ, Zhu XT, Zhang SN, Ma YF, Han YH, Jiang Y, Zhang YH. Premature ovarian insufficiency: a review on the role of oxidative stress and the application of antioxidants. Front Endocrinol (Lausanne) 2023; 14:1172481. [PMID: 37600717 PMCID: PMC10436748 DOI: 10.3389/fendo.2023.1172481] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/03/2023] [Indexed: 08/22/2023] Open
Abstract
Normal levels of reactive oxygen species (ROS) play an important role in regulating follicular growth, angiogenesis and sex hormone synthesis in ovarian tissue. When the balance between ROS and antioxidants is disrupted, however, it can cause serious consequences of oxidative stress (OS), and the quantity and quality of oocytes will decline. Therefore, this review discusses the interrelationship between OS and premature ovarian insufficiency (POI), the potential mechanisms and the methods by which antioxidants can improve POI through controlling the level of OS. We found that OS can mediate changes in genetic materials, signal pathways, transcription factors and ovarian microenvironment, resulting in abnormal apoptosis of ovarian granulosa cells (GCs) and abnormal meiosis as well as decreased mitochondrial Deoxyribonucleic Acid(mtDNA) and other changes, thus accelerating the process of ovarian aging. However, antioxidants, mesenchymal stem cells (MSCs), biological enzymes and other antioxidants can delay the disease process of POI by reducing the ROS level in vivo.
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Affiliation(s)
- Yu-Qian Shi
- Department of First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xi-Ting Zhu
- Department of First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Su-Na Zhang
- Department of First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yi-Fu Ma
- Department of First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yan-Hua Han
- Department of Obstetrics and Gynecology, Key Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yue Jiang
- Department of Obstetrics and Gynecology, Key Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yue-Hui Zhang
- Department of Obstetrics and Gynecology, Key Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
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Chen Y, Zhao R, Li X, Luan YP, Xing LW, Zhang XJ, Wang J, Xia XY, Zhao R. Preventive Electroacupuncture Alleviates Oxidative Stress and Inflammation via Keap1/Nrf2/HO-1 Pathway in Rats with Cyclophosphamide-Induced Premature Ovarian Insufficiency. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6718592. [PMID: 36060148 PMCID: PMC9436575 DOI: 10.1155/2022/6718592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/08/2022] [Accepted: 08/06/2022] [Indexed: 11/17/2022]
Abstract
Electroacupuncture (EA) is a popular therapeutic therapy for premature ovarian insufficiency (POI). However, little has been known about the underlying processes of EA therapy. To investigate the benefit of EA and reveal the mechanism, thirty SD female rats were allocated into the control, model, sham, EA, and GnRHa groups at random. Vaginal smears were used to monitor the rats' estrous cycle. Serum liver and renal function (ALT, AST, BUN, and Cr), sex hormone (FSH, E2, and AMH), oxidative stress markers (SOD, GSH, and MDA), and inflammatory cytokine (IL6, IL1β, and TNFα) levels were measured by enzyme-linked immunosorbent assay (ELISA). Their ovary morphology was observed by hematoxylin-eosin staining. Transmission electron microscope was used to remark the ultrastructure of the granulocytes. Protein and gene expressions of Keap1/Nrf2/HO-1 pathway were detected by western blot and RT-PCR. Compared with the model group, in the EA group, the levels of serum sex hormones recovered to normal levels. Moreover, it reduced oxidative stress in rats, as demonstrated by increased SOD and GSH levels and decreased MDA levels. Meanwhile, Keap1 mRNA and protein expression dropped considerably in the EA group, while the mRNA and protein expressions of Nrf2 and HO-1 increased. We found that preventive EA might rescue rats with CTX-induced ovarian dysfunction. The anti-inflammatory and antioxidative stress properties of EA, which elevated the Keap1/Nrf2/HO-1 signaling pathway, might be the underlying mechanism. Furthermore, as compared to GnRHa, electroacupuncture did not raise the burden of the liver (ALT and AST) or the kidney (BUN and Cr). Electroacupuncture has a meaningful impact and a sufficient level of safety, making it useful for therapeutic setting in POI.
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Affiliation(s)
- Yang Chen
- Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of TCM, Hainan Women and Children's Medical Center (Women and Children's Health Care Center of Hainan Province, Hainan Children's Hospital, Children's Hospital of Fudan University at Hainan, Hainan Obstetrics and Gynecology Hospital), Longkun Road, Qiongshan District, Haikou, 571100 Hainan, China
| | - Rui Zhao
- Department of TCM, Hainan Women and Children's Medical Center (Women and Children's Health Care Center of Hainan Province, Hainan Children's Hospital, Children's Hospital of Fudan University at Hainan, Hainan Obstetrics and Gynecology Hospital), Longkun Road, Qiongshan District, Haikou, 571100 Hainan, China
| | - Xiang Li
- Yunnan University of Chinese Medicine, Kunming, 650500 Yunnan, China
| | - Yun-peng Luan
- Southwest Forestry University, Kunming, 650051 Yunnan, China
| | - Li-wei Xing
- Yunnan University of Chinese Medicine, Kunming, 650500 Yunnan, China
| | - Xiao-juan Zhang
- Department of TCM, Hainan Women and Children's Medical Center (Women and Children's Health Care Center of Hainan Province, Hainan Children's Hospital, Children's Hospital of Fudan University at Hainan, Hainan Obstetrics and Gynecology Hospital), Longkun Road, Qiongshan District, Haikou, 571100 Hainan, China
| | - Jing Wang
- Department of TCM, Hainan Women and Children's Medical Center (Women and Children's Health Care Center of Hainan Province, Hainan Children's Hospital, Children's Hospital of Fudan University at Hainan, Hainan Obstetrics and Gynecology Hospital), Longkun Road, Qiongshan District, Haikou, 571100 Hainan, China
| | - Xiao-yan Xia
- Department of TCM, Hainan Women and Children's Medical Center (Women and Children's Health Care Center of Hainan Province, Hainan Children's Hospital, Children's Hospital of Fudan University at Hainan, Hainan Obstetrics and Gynecology Hospital), Longkun Road, Qiongshan District, Haikou, 571100 Hainan, China
| | - Rong Zhao
- Nanjing University of Chinese Medicine, Nanjing 210023, China
- Yunnan University of Chinese Medicine, Kunming, 650500 Yunnan, China
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