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Bao S, Yin T, Liu S. Ovarian aging: energy metabolism of oocytes. J Ovarian Res 2024; 17:118. [PMID: 38822408 PMCID: PMC11141068 DOI: 10.1186/s13048-024-01427-y] [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: 12/13/2023] [Accepted: 04/30/2024] [Indexed: 06/03/2024] Open
Abstract
In women who are getting older, the quantity and quality of their follicles or oocytes and decline. This is characterized by decreased ovarian reserve function (DOR), fewer remaining oocytes, and lower quality oocytes. As more women choose to delay childbirth, the decline in fertility associated with age has become a significant concern for modern women. The decline in oocyte quality is a key indicator of ovarian aging. Many studies suggest that age-related changes in oocyte energy metabolism may impact oocyte quality. Changes in oocyte energy metabolism affect adenosine 5'-triphosphate (ATP) production, but how related products and proteins influence oocyte quality remains largely unknown. This review focuses on oocyte metabolism in age-related ovarian aging and its potential impact on oocyte quality, as well as therapeutic strategies that may partially influence oocyte metabolism. This research aims to enhance our understanding of age-related changes in oocyte energy metabolism, and the identification of biomarkers and treatment methods.
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Affiliation(s)
- Shenglan Bao
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tailang Yin
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China.
| | - Su Liu
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-Implantation, , Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (Formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China.
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Bai Y, Zhang W, Hao L, Zhao Y, Tsai IC, Qi Y, Xu Q. Acetyl-CoA-dependent ac 4C acetylation promotes the osteogenic differentiation of LPS-stimulated BMSCs. Int Immunopharmacol 2024; 133:112124. [PMID: 38663312 DOI: 10.1016/j.intimp.2024.112124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/10/2024] [Accepted: 04/17/2024] [Indexed: 05/12/2024]
Abstract
The impaired osteogenic capability of bone marrow mesenchymal stem cells (BMSCs) caused by persistent inflammation is the main pathogenesis of inflammatory bone diseases. Recent studies show that metabolism is disturbed in osteogenically differentiated BMSCs in response to Lipopolysaccharide (LPS) treatment, while the mechanism involved remains incompletely revealed. Herein, we demonstrated that BMSCs adapted their metabolism to regulate acetyl-coenzyme A (acetyl-CoA) availability and RNA acetylation level, ultimately affecting osteogenic differentiation. The mitochondrial dysfunction and impaired osteogenic potential upon inflammatory conditions accompanied by the reduced acetyl-CoA content, which in turn suppressed N4-acetylation (ac4C) level. Supplying acetyl-CoA by sodium citrate (SC) addition rescued ac4C level and promoted the osteogenic capacity of LPS-treated cells through the ATP citrate lyase (ACLY) pathway. N-acetyltransferase 10 (NAT10) inhibitor remodelin reduced ac4C level and consequently impeded osteogenic capacity. Meanwhile, the osteo-promotive effect of acetyl-CoA-dependent ac4C might be attributed to fatty acid oxidation (FAO), as evidenced by activating FAO by L-carnitine supplementation counteracted remodelin-induced inhibition of osteogenesis. Further in vivo experiments confirmed the promotive role of acetyl-CoA in the endogenous bone regeneration in rat inflammatory mandibular defects. Our study uncovered a metabolic-epigenetic axis comprising acetyl-CoA and ac4C modification in the process of inflammatory osteogenesis of BMSCs and suggested a new target for bone tissue repair in the context of inflammatory bone diseases.
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Affiliation(s)
- Yujia Bai
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong 510055, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China.
| | - Wenjie Zhang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong 510055, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China.
| | - Lili Hao
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong 510055, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China.
| | - Yiqing Zhao
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong 510055, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China.
| | - I-Chen Tsai
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong 510055, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China.
| | - Yipin Qi
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong 510055, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China.
| | - Qiong Xu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong 510055, China; Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China.
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Christians JK, Reue K. The role of gonadal hormones and sex chromosomes in sex-dependent effects of early nutrition on metabolic health. Front Endocrinol (Lausanne) 2023; 14:1304050. [PMID: 38189044 PMCID: PMC10770830 DOI: 10.3389/fendo.2023.1304050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/11/2023] [Indexed: 01/09/2024] Open
Abstract
Early-life conditions such as prenatal nutrition can have long-term effects on metabolic health, and these effects may differ between males and females. Understanding the biological mechanisms underlying sex differences in the response to early-life environment will improve interventions, but few such mechanisms have been identified, and there is no overall framework for understanding sex differences. Biological sex differences may be due to chromosomal sex, gonadal sex, or interactions between the two. This review describes approaches to distinguish between the roles of chromosomal and gonadal sex, and summarizes findings regarding sex differences in metabolism. The Four Core Genotypes (FCG) mouse model allows dissociation of the sex chromosome genotype from gonadal type, whereas the XY* mouse model can be used to distinguish effects of X chromosome dosage vs the presence of the Y chromosome. Gonadectomy can be used to distinguish between organizational (permanent) and activational (reversible) effects of sex hormones. Baseline sex differences in a variety of metabolic traits are influenced by both activational and organizational effects of gonadal hormones, as well as sex chromosome complement. Thus far, these approaches have not been widely applied to examine sex-dependent effects of prenatal conditions, although a number of studies have found activational effects of estradiol to be protective against the development of hypertension following early-life adversity. Genes that escape X chromosome inactivation (XCI), such as Kdm5c, contribute to baseline sex-differences in metabolism, while Ogt, another XCI escapee, leads to sex-dependent responses to prenatal maternal stress. Genome-wide approaches to the study of sex differences include mapping genetic loci influencing metabolic traits in a sex-dependent manner. Seeking enrichment for binding sites of hormone receptors among genes showing sexually-dimorphic expression can elucidate the relative roles of hormones. Using the approaches described herein to identify mechanisms underlying sex-dependent effects of early nutrition on metabolic health may enable the identification of fundamental mechanisms and potential interventions.
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Affiliation(s)
- Julian K. Christians
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada
- Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, BC, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, BC, Canada
- Women’s Health Research Institute, BC Women’s Hospital and Health Centre, Vancouver, BC, Canada
| | - Karen Reue
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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O'Brien K, Wang Y. The Placenta: A Maternofetal Interface. Annu Rev Nutr 2023; 43:301-325. [PMID: 37603428 DOI: 10.1146/annurev-nutr-061121-085246] [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] [Indexed: 08/23/2023]
Abstract
The placenta is the gatekeeper between the mother and the fetus. Over the first trimester of pregnancy, the fetus is nourished by uterine gland secretions in a process known as histiotrophic nutrition. During the second trimester of pregnancy, placentation has evolved to the point at which nutrients are delivered to the placenta via maternal blood (hemotrophic nutrition). Over gestation, the placenta must adapt to these variable nutrient supplies, to alterations in maternal physiology and blood flow, and to dynamic changes in fetal growth rates. Numerous questions remain about the mechanisms used to transport nutrients to the fetus and the maternal and fetal determinants of this process. Growing data highlight the ability of the placenta to regulate this process. As new technologies and omics approaches are utilized to study this maternofetal interface, greater insight into this unique organ and its impact on fetal development and long-term health has been obtained.
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Affiliation(s)
- Kimberly O'Brien
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, New York, USA; ,
| | - Yiqin Wang
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, New York, USA; ,
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Gaccioli F, Sovio U, Gong S, Cook E, Charnock-Jones DS, Smith GC. Increased Placental sFLT1 (Soluble fms-Like Tyrosine Kinase Receptor-1) Drives the Antiangiogenic Profile of Maternal Serum Preceding Preeclampsia but Not Fetal Growth Restriction. Hypertension 2023; 80:325-334. [PMID: 35866422 PMCID: PMC9847691 DOI: 10.1161/hypertensionaha.122.19482] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Preeclampsia and fetal growth restriction (FGR) are both associated with an increased ratio of sFLT1 (soluble fms-like tyrosine kinase-1) to PlGF (placenta growth factor) in maternal serum. In preeclampsia, it is assumed that increased placental release of sFLT1 results in PlGF being bound and inactivated. However, direct evidence for this model is incomplete, and it is unclear whether the same applies in FGR. METHODS We conducted a prospective cohort study where we followed 4212 women having first pregnancies from their dating ultrasound, obtained blood samples serially through the pregnancy, and performed systematic sampling of the placenta after delivery. The aim of the present study was to determine the relationship between protein levels of sFLT1 and PlGF in maternal serum measured at ≈36 weeks and placental tissue lysates obtained after term delivery in 82 women with preeclampsia, 50 women with FGR, and 132 controls. RESULTS The sFLT1:PlGF ratio was increased in both preeclampsia and FGR in both the placenta and maternal serum. However, in preeclampsia, the maternal serum ratio of sFLT1:PlGF was strongly associated with placental sFLT1 level (r=0.45; P<0.0001) but not placental PlGF level (r=-0.17; P=0.16). In contrast, in FGR, the maternal serum ratio of sFLT1:PlGF was strongly associated with placental PlGF level (r=-0.35; P=0.02) but not sFLT1 level (r=0.04; P=0.81). CONCLUSIONS We conclude that the elevated sFLT1:PlGF ratio is primarily driven by increased placental sFLT1 in preeclampsia, whereas in FGR, it is primarily driven by decreased placental PlGF.
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Affiliation(s)
- Francesca Gaccioli
- Department of Obstetrics and Gynaecology (F.G., U.S., S.G., E.C., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
- Centre for Trophoblast Research (F.G., U.S., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
| | - Ulla Sovio
- Department of Obstetrics and Gynaecology (F.G., U.S., S.G., E.C., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
- Centre for Trophoblast Research (F.G., U.S., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
| | - Sungsam Gong
- Department of Obstetrics and Gynaecology (F.G., U.S., S.G., E.C., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
| | - Emma Cook
- Department of Obstetrics and Gynaecology (F.G., U.S., S.G., E.C., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
| | - D. Stephen Charnock-Jones
- Department of Obstetrics and Gynaecology (F.G., U.S., S.G., E.C., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
- Centre for Trophoblast Research (F.G., U.S., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
| | - Gordon C.S. Smith
- Department of Obstetrics and Gynaecology (F.G., U.S., S.G., E.C., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
- Centre for Trophoblast Research (F.G., U.S., D.S.C.-J., G.C.S.S.), University of Cambridge, United Kingdom
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