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Giaccari C, Antonouli S, Anifandis G, Cecconi S, Di Nisio V. An Update on Physiopathological Roles of Akt in the ReprodAKTive Mammalian Ovary. Life (Basel) 2024; 14:722. [PMID: 38929705 PMCID: PMC11204812 DOI: 10.3390/life14060722] [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: 04/20/2024] [Revised: 05/19/2024] [Accepted: 05/25/2024] [Indexed: 06/28/2024] Open
Abstract
The phosphoinositide 3-kinase (PI3K)/Akt pathway is a key signaling cascade responsible for the regulation of cell survival, proliferation, and metabolism in the ovarian microenvironment. The optimal finetuning of this pathway is essential for physiological processes concerning oogenesis, folliculogenesis, oocyte maturation, and embryo development. The dysregulation of PI3K/Akt can impair molecular and structural mechanisms that will lead to follicle atresia, or the inability of embryos to reach later stages of development. Due to its pivotal role in the control of cell proliferation, apoptosis, and survival mechanisms, the dysregulation of this molecular pathway can trigger the onset of pathological conditions. Among these, we will focus on diseases that can harm female fertility, such as polycystic ovary syndrome and premature ovarian failure, or women's general health, such as ovarian cancer. In this review, we report the functions of the PI3K/Akt pathway in both its physiological and pathological roles, and we address the existing application of inhibitors and activators for the balancing of the molecular cascade in ovarian pathological environments.
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Affiliation(s)
- Carlo Giaccari
- Department of Environmental Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), Università degli Studi della Campania “Luigi Vanvitelli”, 81100 Caserta, Italy;
| | - Sevastiani Antonouli
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41334 Larisa, Greece; (S.A.); (G.A.)
| | - George Anifandis
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41334 Larisa, Greece; (S.A.); (G.A.)
| | - Sandra Cecconi
- Department of Life, Health, and Environmental Sciences, Università dell’Aquila, 67100 L’Aquila, Italy
| | - Valentina Di Nisio
- Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, SE-14186 Stockholm, Sweden;
- Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, SE-14186 Stockholm, Sweden
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2
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Galliani V, Abud JE, Zenclussen ML, Rodríguez HA. Female offspring of mice perinatally exposed to benzophenone-3 showed early subfertility linked to a poor oocyte stockpile. Arch Toxicol 2024; 98:1909-1918. [PMID: 38553590 DOI: 10.1007/s00204-024-03730-5] [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: 01/15/2024] [Accepted: 03/07/2024] [Indexed: 05/21/2024]
Abstract
Previously, we found that the ultraviolet filter benzophenone-3 (BP3) causes fetal growth restriction in mice when is applied when implantation occurs (first week of gestation). However, whether BP3 can affect gestation and fertility after implantation period is unknown. We aimed to study the effects on reproductive physiology of the offspring caused by perinatal exposure to BP3. C57BL/6 pregnant mice were dermally exposed to 50 mg BP3/kg bw.day or olive oil (vehicle) from gestation day 9 (gd9) to postnatal day 21 (pnd1). We observed no differences in mother's weights, duration of gestation, number of pups per mother, onset of puberty or sex ratio. The weights of the pups exposed to benzophenone-3 were transiently lower than those of the control. Estrous cycle was not affected by perinatal exposure to BP3. Besides, we performed a fertility assessment by continuous breeding protocol: at 10 weeks of age, one F1 female and one F1 male mouse from each group was randomly chosen from each litter and housed together for a period of 6 months. We noticed a reduction in the number of deliveries per mother among dams exposed to BP3 during the perinatal period. To see if this decreased fertility could be associated to an early onset of oocytes depletion, we estimated the ovarian reserve of germ cells. We found reduced number of oocytes and primordial follicles in BP3. In conclusion, perinatal exposure to BP3 leads to a decline in the reproductive capacity of female mice in a continuous breeding protocol linked to oocyte depletion.
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Affiliation(s)
- Valentina Galliani
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Julián Elías Abud
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - María Laura Zenclussen
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - Horacio Adolfo Rodríguez
- Instituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina.
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral (UNL), Santa Fe, Argentina.
- Cátedra de Fisiología Humana, FBCB, Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), UNL, Ciudad Universitaria, Paraje El Pozo, Casilla de Correo 242, 3000, Santa Fe, Argentina.
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3
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Granados-Aparici S, Yang Q, Clarke HJ. SMAD4 promotes somatic-germline contact during murine oocyte growth. eLife 2024; 13:RP91798. [PMID: 38819913 PMCID: PMC11142639 DOI: 10.7554/elife.91798] [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] [Indexed: 06/01/2024] Open
Abstract
Development of the mammalian oocyte requires physical contact with the surrounding granulosa cells of the follicle, which provide it with essential nutrients and regulatory signals. This contact is achieved through specialized filopodia, termed transzonal projections (TZPs), that extend from the granulosa cells to the oocyte surface. Transforming growth factor (TGFβ) family ligands produced by the oocyte increase the number of TZPs, but how they do so is unknown. Using an inducible Cre recombinase strategy together with expression of green fluorescent protein to verify Cre activity in individual cells, we examined the effect of depleting the canonical TGFβ mediator, SMAD4, in mouse granulosa cells. We observed a 20-50% decrease in the total number of TZPs in SMAD4-depleted granulosa cell-oocyte complexes, and a 50% decrease in the number of newly generated TZPs when the granulosa cells were reaggregated with wild-type oocytes. Three-dimensional image analysis revealed that TZPs of SMAD4-depleted cells were longer than controls and more frequently oriented towards the oocyte. Strikingly, the transmembrane proteins, N-cadherin and Notch2, were reduced by 50% in SMAD4-depleted cells. SMAD4 may thus modulate a network of cell adhesion proteins that stabilize the attachment of TZPs to the oocyte, thereby amplifying signalling between the two cell types.
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Affiliation(s)
- Sofia Granados-Aparici
- Research Institute, McGill University Health CentreMontrealCanada
- Present address: Cancer CIBER (CIBERONC)MadridSpain
- Present address: Pathology Department, Medical School, University of Valencia-INCLIVAValenciaSpain
| | - Qin Yang
- Research Institute, McGill University Health CentreMontrealCanada
| | - Hugh J Clarke
- Research Institute, McGill University Health CentreMontrealCanada
- Departments of Obstetrics and Gynecology and Biology, Division of Experimental Medicine, McGill UniversityMontréalCanada
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Zhang T, Tong Y, Zhu R, Liang Y, Zhang J, Hu C, He M, Hu Z, Shen Z, Niu J, Zhang J, Yu Y, Jin B, Lei S, Zeng Z, Wu Y, Cheng Z, Xiao Z, Guo B, Zhao S, Xu G, Pan W, Chen T. HDAC6-dependent deacetylation of NGF dictates its ubiquitination and maintains primordial follicle dormancy. Theranostics 2024; 14:2345-2366. [PMID: 38646645 PMCID: PMC11024860 DOI: 10.7150/thno.95164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 03/18/2024] [Indexed: 04/23/2024] Open
Abstract
Rationale: Primordial follicles are limited in number and cannot be regenerated, dormant primordial follicles cannot be reversed once they enter a growth state. Therefore, the length of the female reproductive lifespan depends on the orderly progression and selective activation of primordial follicles, the mechanism of which remains unclear. Methods: We used human ovarian cortical biopsy specimens, granulosa cells from diminished ovarian reserve (DOR) patients, Hdac6-overexpressing transgenic mouse model, and RNA sequencing to analyze the crucial roles of histone deacetylase 6 (HDAC6) in fertility preservation and primordial follicle activation. Results: In the present study, we found that HDAC6 was highly expressed in most dormant primordial follicles. The HDAC6 expression was reduced accompanying reproductive senescence in human and mouse ovaries. Overexpression of Hdac6 delayed the rate of primordial follicle activation, thereby prolonging the mouse reproductive lifespan. Short-term inhibition of HDAC6 promoted primordial follicle activation and follicular development in humans and mice. Mechanism studies revealed that HDAC6 directly interacted with NGF, reducing acetylation modification of NGF and thereby accelerating its ubiquitination degradation. Consequently, the reduced NGF protein level maintained the dormancy of primordial follicles. Conclusions: The physiological significance of the high expression of HDAC6 in most primordial follicles is to reduce NGF expression and prevent primordial follicle activation to maintain female fertility. Reduced HDAC6 expression increases NGF expression in primordial follicles, activating their development and contributing to reproduction. Our study provides a clinical reference value for fertility preservation.
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Affiliation(s)
- Tuo Zhang
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
- Prenatal Diagnosis Center in Guizhou Province, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, Guizhou, 550009, China
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, Guiyang, Guizhou, 550009, China
- Department of Obstetrics and Gynecology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
- Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Yuntong Tong
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Rengguang Zhu
- College of Pharmacy, Guizhou Medical University, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Yaoyun Liang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, Guiyang, Guizhou, 550009, China
| | - Jixian Zhang
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Chujiao Hu
- College of Pharmacy, Guizhou Medical University, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Meina He
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
- Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Zhu Hu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, Guiyang, Guizhou, 550009, China
| | - Zhiyi Shen
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Jin Niu
- Prenatal Diagnosis Center in Guizhou Province, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Jingjing Zhang
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Yuanyuan Yu
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Bangming Jin
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Shan Lei
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Zhirui Zeng
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Yingmin Wu
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Zengmei Cheng
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, Guiyang, Guizhou, 550009, China
| | - Ziwen Xiao
- Department of Obstetrics and Gynecology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Bing Guo
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Shuyun Zhao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, Guiyang, Guizhou, 550009, China
| | - Guoqiang Xu
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Wei Pan
- Prenatal Diagnosis Center in Guizhou Province, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
| | - Tengxiang Chen
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, 550009, China
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, Guizhou, 550009, China
- Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550009, China
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5
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Lin Y, Sun L, Dai J, Lv Y, Liao R, Shen X, Gao J. Characterization and Comparative Analysis of Whole-Transcriptome Sequencing in High- and Low-Fecundity Chongming White Goat Ovaries during the Estrus Phase. Animals (Basel) 2024; 14:988. [PMID: 38612227 PMCID: PMC11010919 DOI: 10.3390/ani14070988] [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: 02/01/2024] [Revised: 03/14/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Reproductive performance is one of the most important economic traits in the goat industry. Increasing the number of goats is an effective measure to improve production efficiency and reduce production costs. Ovaries are important reproductive organs in female mammals that directly affect the estrous cycle and reproductive abilities. Understanding the complex transcription network of non-coding RNAs (lncRNAs, circRNAs, and miRNAs) and messenger RNA (mRNA) could lead to significant insights into the ovarian regulation of the reproductive processes of animals. However, the whole-transcriptome analysis of the non-coding RNAs and mRNA of the ovaries in Chongming white goats between high-fecundity (HP) and low-fecundity (LP) groups is limited. In this study, a whole-transcriptome sequencing approach was used to identify lncRNA, circRNA, miRNA, and mRNA expression in the ovaries of Chongming white goats during the estrus phase using RNA-Seq technology. More than 20,000 messenger RNAs (mRNAs), 10,000 long non-coding RNAs (lncRNAs), 3500 circular RNAs (circRNAs), and 1000 micro RNAs (miRNAs) were identified. A total of 1024 differential transcripts (724 mRNAs, 112 lncRNAs, 178 circRNAs, and 10 miRNAs) existing between the HP and the LP groups were revealed through a bioinformatics analysis. They were enriched in the prolactin signaling pathway, the Jak-STAT signaling pathway, and the GnRH signaling pathway, as well as various metabolic pathways. Differentially expressed mRNAs (such as LYPD6, VEGFA, NOS3, TNXB, and EPHA2) and miRNAs (such as miR-10a-5p) play key roles in the regulation of goat ovaries during the estrus phase. The enrichment of pathways related to reproduction, such as the Hippo, Hedgehog, PI3K-AKT, and MAPK signaling pathways, suggests that they might be involved in the prolificacy of goat ovaries. Overall, we identified several gene modules associated with goat fecundity and provided a basis for a molecular mechanism in the ovaries of Chongming white goats.
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Affiliation(s)
- Yuexia Lin
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Y.L.); (L.S.); (J.D.); (Y.L.); (R.L.)
| | - Lingwei Sun
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Y.L.); (L.S.); (J.D.); (Y.L.); (R.L.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
- Key Laboratory of Livestock and Poultry Resources (Pig) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China
| | - Jianjun Dai
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Y.L.); (L.S.); (J.D.); (Y.L.); (R.L.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
- Key Laboratory of Livestock and Poultry Resources (Pig) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China
| | - Yuhua Lv
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Y.L.); (L.S.); (J.D.); (Y.L.); (R.L.)
| | - Rongrong Liao
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Y.L.); (L.S.); (J.D.); (Y.L.); (R.L.)
| | - Xiaohui Shen
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Y.L.); (L.S.); (J.D.); (Y.L.); (R.L.)
| | - Jun Gao
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Y.L.); (L.S.); (J.D.); (Y.L.); (R.L.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
- Key Laboratory of Livestock and Poultry Resources (Pig) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 201106, China
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6
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Shu T, Chen Y, Xiao K, Huang H, Jia J, Yu Z, Jiang W, Yang J. Effects of short-term water velocity stimulation on the biochemical and transcriptional responses of grass carp ( Ctenopharyngodon idellus). Front Physiol 2023; 14:1248999. [PMID: 37719458 PMCID: PMC10501314 DOI: 10.3389/fphys.2023.1248999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/14/2023] [Indexed: 09/19/2023] Open
Abstract
Since 2011, ecological operation trials of the Three Gorges Reservoir (TGR) have been continuously conducted to improve the spawning quantity of the four major Chinese carp species below the Gezhouba Dam. In particular, exploring the effects of short-term water velocity stimulation on ovarian development in grass carp (Ctenopharyngodon idellus) is essential to understand the response of natural reproduction to ecological flows. We performed ovary histology analysis and biochemical assays among individuals with or without stimulation by running water. Although there were no obvious effects on the ovarian development characteristics of grass carp under short-term water velocity stimulation, estradiol, progesterone, follicle-stimulating hormone (FSH), and triiodothyronine (T3) concentrations were elevated. Then, we further explored the ovarian development of grass carp under short-term water velocity stimulation by RNA sequencing of ovarian tissues. In total, 221 and 741 genes were up- or downregulated under short-term water velocity stimulation, respectively, compared to the control group. The majority of differentially expressed genes (DEGs) were enriched in pathways including ABC transporters, cytokine-cytokine receptor interaction, ECM-receptor interaction, and steroid hormone biosynthesis. Important genes including gpr4, vtg1, C-type lectin, hsd17b1, cyp19a1a, cyp17a1, and rdh12 that are involved in ovarian development were regulated. Our results provide new insights and reveal potential regulatory genes and pathways involved in the ovarian development of grass carp under short-term water velocity stimulation, which may be beneficial when devising further ecological regulation strategies.
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Affiliation(s)
- Tingting Shu
- Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, China
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, China
| | - Yan Chen
- Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, China
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, China
- State Key Laboratory for Cellular Stress Biology, Innovation Centre for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, China
| | - Kan Xiao
- Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, China
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, China
| | - Hongtao Huang
- Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, China
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, China
| | - Jingyi Jia
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Zhaoxi Yu
- Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, China
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, China
| | - Wei Jiang
- Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, China
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, China
| | - Jing Yang
- Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang, China
- Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang, China
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7
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Chen W, E Q, Sun B, Zhang P, Li N, Fei S, Wang Y, Liu S, Liu X, Zhang X. PARP1-catalyzed PARylation of YY1 mediates endoplasmic reticulum stress in granulosa cells to determine primordial follicle activation. Cell Death Dis 2023; 14:524. [PMID: 37582914 PMCID: PMC10427711 DOI: 10.1038/s41419-023-05984-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 08/17/2023]
Abstract
Although only a small number of primordial follicles are known to be selectively activated during female reproductive cycles, the mechanisms that trigger this recruitment remain largely uncharacterized. Misregulated activation of primordial follicles may lead to the exhaustion of the non-renewable pool of primordial follicles, resulting in premature ovarian insufficiency. Here, we found that poly(ADP-ribose) polymerase 1 (PARP1) enzymatic activity in the surrounding granulosa cells (GCs) in follicles determines the subpopulation of the dormant primordial follicles to be awakened. Conversely, specifically inhibiting PARP1 in oocytes in an in vitro mouse follicle reconstitution model does not affect primordial follicle activation. Further analysis revealed that PARP1-catalyzed transcription factor YY1 PARylation at Y185 residue facilitates YY1 occupancy at Grp78 promoter, a key molecular chaperone of endoplasmic reticulum stress (ERS), and promotes Grp78 transcription in GCs, which is required for GCs maintaining proper ERS during primordial follicle activation. Inhibiting PARP1 prevents the loss of primordial follicle pool by attenuating the excessive ERS in GCs under fetal bisphenol A exposure. Together, we demonstrate that PARP1 in GCs acts as a pivotal modulator to determine the fate of the primordial follicles and may represent a novel therapeutic target for the retention of primordial follicle pool in females.
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Affiliation(s)
- Wei Chen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Qiukai E
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Bo Sun
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
- Department of Obstetrics and Gynecology, the Affiliated Jiangning Hospital of Nanjing Medical University, 211166, Nanjing, China
| | - Pengxue Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Nan Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Shujia Fei
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Yingnan Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Shuting Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Xiaoqiu Liu
- College of Basic Medical Science, China Medical University, Shenyang, 110122, China.
| | - Xuesen Zhang
- College of Basic Medical Science, China Medical University, Shenyang, 110122, China.
- Nanjing Medical University, Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing, 211166, China.
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8
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Ye M, Shan Y, Lu B, Luo H, Li B, Zhang Y, Wang Z, Guo Y, Ouyang L, Gu J, Xiong Z, Zhang T. Creating a semi-opened micro-cavity ovary through sacrificial microspheres as an in vitro model for discovering the potential effect of ovarian toxic agents. Bioact Mater 2023; 26:216-230. [PMID: 36936809 PMCID: PMC10017366 DOI: 10.1016/j.bioactmat.2023.02.029] [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: 11/30/2022] [Revised: 02/26/2023] [Accepted: 02/26/2023] [Indexed: 03/09/2023] Open
Abstract
The bio-engineered ovary is an essential technology for treating female infertility. Especially the development of relevant in vitro models could be a critical step in a drug study. Herein, we develop a semi-opened culturing system (SOCS) strategy that maintains a 3D structure of follicles during the culture. Based on the SOCS, we further developed micro-cavity ovary (MCO) with mouse follicles by the microsphere-templated technique, where sacrificial gelatin microspheres were mixed with photo-crosslinkable gelatin methacryloyl (GelMA) to engineer a micro-cavity niche for follicle growth. The semi-opened MCO could support the follicle growing to the antral stage, secreting hormones, and ovulating cumulus-oocyte complex out of the MCO without extra manipulation. The MCO-ovulated oocyte exhibits a highly similar transcriptome to the in vivo counterpart (correlation of 0.97) and can be fertilized. Moreover, we found that a high ROS level could affect the cumulus expansion, which may result in anovulation disorder. The damage could be rescued by melatonin, but the end of cumulus expansion was 3h earlier than anticipation, validating that MCO has the potential for investigating ovarian toxic agents in vitro. We provide a novel approach for building an in vitro ovarian model to recapitulate ovarian functions and test chemical toxicity, suggesting it has the potential for clinical research in the future.
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Affiliation(s)
- Min Ye
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Yiran Shan
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Department of Automation, Tsinghua University, Beijing, 100084, China
| | - Bingchuan Lu
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Hao Luo
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Binhan Li
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Yanmei Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Zixuan Wang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Yuzhi Guo
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Liliang Ouyang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Jin Gu
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Department of Automation, Tsinghua University, Beijing, 100084, China
| | - Zhuo Xiong
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
- Corresponding author. Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Ting Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
- Corresponding author. Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China.
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9
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Sui Z, Zhang Y, Zhang Z, Wang C, Li X, Xing F. Lin28B overexpression decreases let-7b and let-7g levels and increases proliferation and estrogen secretion in Dolang sheep ovarian granulosa cells. Arch Anim Breed 2023; 66:217-224. [PMID: 37560354 PMCID: PMC10407058 DOI: 10.5194/aab-66-217-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 06/28/2023] [Indexed: 08/11/2023] Open
Abstract
Although ovine puberty initiation has been previously studied, the mechanism by which the RNA-binding protein Lin28B affects this process has not been investigated. The present study aimed to investigate the effects of Lin28B overexpression on let-7b, let-7g, cell proliferation, and estrogen secretion in Dolang sheep ovine ovarian granulosa cells. In this study, a Lin28B vector was constructed and transfected into ovarian granulosa cells using liposomes. After 24, 48, and 72 h of overexpression, quantitative real-time PCR (qRT-PCR) was used for measuring let-7b and let-7g microRNA (miRNA) levels, and estrogen secretion was measured using the enzyme-linked immunosorbent assay (ELISA). A CCK-8 (Cell Counting Kit-8) kit was used for evaluating cell viability and proliferation in response to Lin28B overexpression at 24 h. The results showed that the expression of let-7b and let-7g decreased significantly after Lin28B overexpression, and the difference was consistent over different periods. The result of ELISA showed that estradiol (E2) levels significantly increased following Lin28B overexpression. Additionally, Lin28B overexpression significantly increased the cell viability and proliferation. Therefore, the Lin28B-let-7 family axis may play a key role in the initiation of female ovine puberty.
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Affiliation(s)
- Zhiyuan Sui
- Key Laboratory of Tarim, Animal Husbandry Science and Technology,
Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
- College of Animal Science and Technology, Tarim University, Alar,
Xinjiang 843300, China
| | - Yongjie Zhang
- Key Laboratory of Tarim, Animal Husbandry Science and Technology,
Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
- College of Animal Science and Technology, Tarim University, Alar,
Xinjiang 843300, China
| | - Zhishuai Zhang
- Key Laboratory of Tarim, Animal Husbandry Science and Technology,
Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
- College of Animal Science and Technology, Tarim University, Alar,
Xinjiang 843300, China
| | - Chenguang Wang
- Key Laboratory of Tarim, Animal Husbandry Science and Technology,
Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
- College of Animal Science and Technology, Tarim University, Alar,
Xinjiang 843300, China
| | - Xiaojun Li
- Key Laboratory of Tarim, Animal Husbandry Science and Technology,
Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
- College of Animal Science and Technology, Tarim University, Alar,
Xinjiang 843300, China
| | - Feng Xing
- Key Laboratory of Tarim, Animal Husbandry Science and Technology,
Xinjiang Production & Construction Corps, Alar, Xinjiang 843300, China
- College of Animal Science and Technology, Tarim University, Alar,
Xinjiang 843300, China
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10
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Kato Y, Saga Y. Antagonism between DDX6 and PI3K-AKT signaling is an oocyte-intrinsic mechanism controlling primordial follicle growth†. Biol Reprod 2023; 109:73-82. [PMID: 37067907 DOI: 10.1093/biolre/ioad043] [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: 02/01/2023] [Revised: 04/03/2023] [Accepted: 04/12/2023] [Indexed: 04/18/2023] Open
Abstract
Oocyte maturation and subsequent ovulation during the reproductive lifespan ensure long-term reproduction in mammalian females. This is achieved by tight regulation for the maintenance and growth of primordial follicles. However, the underlying mechanisms remain unsolved. We herein report that posttranscriptional gene regulation mediated by an RNA helicase, DEAD-box helicase 6 (DDX6), and phosphoinositide-3-kinase (PI3K)-AKT signaling exhibits an antagonistic interaction in mouse primordial follicles. DDX6 forms P-body-like cytoplasmic foci in oocytes, which colocalize to a P-body component, DCP1A. Interestingly, the P-body-like granules predominantly assemble in primordial follicles, but disperse once follicle growth is initiated, suggesting that they play a role in the maintenance of primordial follicles. Oocyte-specific knockout of Ddx6 using Gdf9-iCre revealed that Ddx6-deficient oocytes are defective in foci assembly and are abnormally enlarged, resulting in premature depletion of primordial follicles. These results indicate that DDX6 is required to maintain primordial follicles. The abnormal oocyte enlargement is because of enhanced PI3K-AKT signaling, a pivotal signaling pathway in the growth of primordial follicles. Conversely, the forced activation of PI3K-AKT signaling by knocking out Pten disassembles P-body-like granules in primordial follicles. These data suggest that DDX6 and PI3K-AKT signaling mutually antagonize the assembly of P-body-like granules and the growth of primordial follicles. We propose this mutual antagonism as an oocyte-intrinsic mechanism controlling the maintenance and growth of primordial follicles, ensuring the longevity of female reproduction.
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Affiliation(s)
- Yuzuru Kato
- Department of Gene Function and Phenomics, Mammalian Development Laboratory, National Institute of Genetics, Shizuoka, Japan
| | - Yumiko Saga
- Department of Gene Function and Phenomics, Mammalian Development Laboratory, National Institute of Genetics, Shizuoka, Japan
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11
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Margiana R, Lestari SW, Narulita P, Jusuf AA, Ima K. Dietary Soybean (Glycine max (L.) Merr.) Improved the ZP2 Expression in Female Swiss Mice. JBRA Assist Reprod 2023; 27:147-155. [PMID: 35916458 PMCID: PMC10279445 DOI: 10.5935/1518-0557.20220020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 04/01/2022] [Indexed: 08/02/2023] Open
Abstract
OBJECTIVE This study aimed to determine the effects of soybean (Glycine max) administration on ZP2 expression in female mice. METHODS This research used Mus musculus, six-week-old female SWISS strain mice divided into three groups (group without soybean administration and groups with mixed feed with soybeans and pelleted 50:50 and 25:75). Soybean feed for mice was 360 grams per kilogram of mouse body weight for 2 weeks. The percentage of follicles was measured and analyzed using Hematoxylin-Eosin staining, and the expression of ZP2 was analyzed using immunohistochemistry. We assessed the data using one-way ANOVA and paired t-test using the SPSS 17. RESULTS Some of the follicles in the ovaries do not develop until their final stage of follicle maturation. The administration of soybean before and after treatment in all groups was not significantly different, but the numbers of atretic follicles in groups 1 and 2 were significantly different. Soybean administration at a ratio of 50:50 has the effect of increasing the percentage of the ZP2 expression in tertiary follicles (p=0.001), whereas soybean administration at a ratio of 25:75 was not able to maintain or increase the formation of ZP2 in tertiary follicles (p=0.77). CONCLUSION Soybean administration with a ratio of 50:50 significantly increased the percentage of the ZP2 expression in tertiary follicles.
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Affiliation(s)
- Ria Margiana
- Department of Anatomy, Faculty of Medicine, Universitas
Indonesia, Indonesia
- Master’s Programme in Biomedical Science, Faculty of Medicine,
Universitas Indonesia, Indonesia
- Research Biobank, Faculty of Medicine, Universitas Indonesia,
Indonesia
- Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas
Indonesia, Indonesia
- Department of Medical Biology, Faculty of Medicine, Universitas
Indonesia, Indonesia
- Departement of Histology, Faculty of Medicine, Universitas
Indonesia
| | - Silvia Werdhy Lestari
- Department of Medical Biology, Faculty of Medicine, Universitas
Indonesia, Indonesia
| | - Pety Narulita
- Andrology Program, Faculty of Medicine, Universitas Airlangga,
Surabaya, Indonesia
- Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - Ahmad Aulia Jusuf
- Departement of Histology, Faculty of Medicine, Universitas
Indonesia
| | - Khoirul Ima
- Master’s Programme in Biomedical Science, Faculty of Medicine,
Universitas Indonesia, Indonesia
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12
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Zhang T, He M, Zhang J, Tong Y, Chen T, Wang C, Pan W, Xiao Z. Mechanisms of primordial follicle activation and new pregnancy opportunity for premature ovarian failure patients. Front Physiol 2023; 14:1113684. [PMID: 36926197 PMCID: PMC10011087 DOI: 10.3389/fphys.2023.1113684] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
Primordial follicles are the starting point of follicular development and the basic functional unit of female reproduction. Primordial follicles are formed around birth, and most of the primordial follicles then enter a dormant state. Since primordial follicles are limited in number and can't be renewed, dormant primordial follicles cannot be reversed once they enter the growing state. Thus, the orderly occurrence of primordial follicles selective activation directly affects the rate of follicle consumption and thus determines the length of female reproductive lifespan. Studies have found that appropriately inhibiting the activation rate of primordial follicles can effectively slow down the rate of follicle consumption, maintain fertility and delay ovarian aging. Based on the known mechanisms of primordial follicle activation, primordial follicle in vitro activation (IVA) technique has been clinically developed. IVA can help patients with premature ovarian failure, middle-aged infertile women, or infertile women due to gynecological surgery treatment to solve infertility problems. The study of the mechanism of selective activation of primordial follicles can contribute to the development of more efficient and safe IVA techniques. In this paper, recent mechanisms of primordial follicle activation and its clinical application are reviewed.
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Affiliation(s)
- Tuo Zhang
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,Prenatal Diagnosis Center in Guizhou Province, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Department of Pathophysiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Meina He
- College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jingjing Zhang
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yuntong Tong
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Tengxiang Chen
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Department of Physiology, College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,College of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Department of Pathophysiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China.,Guizhou Institute of Precision Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Chao Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Wei Pan
- Prenatal Diagnosis Center in Guizhou Province, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Ziwen Xiao
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
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13
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Clarke HJ. Transzonal projections: Essential structures mediating intercellular communication in the mammalian ovarian follicle. Mol Reprod Dev 2022; 89:509-525. [PMID: 36112806 DOI: 10.1002/mrd.23645] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 12/25/2022]
Abstract
The development of germ cells relies on contact and communication with neighboring somatic cells that provide metabolic support and regulatory signals. In females, contact is achieved through thin cytoplasmic processes that project from follicle cells surrounding the oocyte, extend through an extracellular matrix (ECM) that lies between them, and reach its surface. In mammals, the ECM is termed the zona pellucida and the follicular cell processes are termed transzonal projections (TZPs). TZPs become detectable when the zona pellucida is laid down during early folliculogenesis and subsequently increase in number as oocyte growth progresses. They then rapidly disappear at the time of ovulation, permanently breaking germ-soma contact. Here we review the life cycle and functions of the TZPs. We begin with an overview of the morphology and cytoskeletal structure of TZPs, in the context of actin- and tubulin-based cytoplasmic processes in other cell types. Next, we review the roles played by TZPs in mediating progression through successive stages of oocyte development. We then discuss two mechanisms that may generate TZPs-stretching at pre-existing points of granulosa cell-oocyte contact and elaboration of new processes that push through the zona pellucida-as well as gene products implicated in their formation or function. Finally, we describe the signaling pathways that cause TZPs to be retracted in response to signals that also trigger meiotic maturation and ovulation of the oocyte. The principles and mechanisms that govern TZP behavior may be relevant to understanding communication between physically separated cells in other physiological contexts.
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Affiliation(s)
- Hugh J Clarke
- Program in Child Health and Human Development, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Obstetrics and Gynecology, McGill University, Montreal, Quebec, Canada
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14
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Hu Y, Xu J, Shi SJ, Zhou X, Wang L, Huang L, Gao L, Pang W, Yang G, Chu G. Fibroblast growth factor 21 (FGF21) promotes porcine granulosa cell estradiol production and proliferation via PI3K/AKT/mTOR signaling. Theriogenology 2022; 194:1-12. [PMID: 36183492 DOI: 10.1016/j.theriogenology.2022.09.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/15/2022]
Abstract
The proliferation and steroidogenesis of mammalian ovarian granulosa cells (GCs) are related to follicular development. Previous studies found that fibroblast growth factor 21 (FGF21) regulated female fertility through the hypothalamic-pituitary-gonad axis. However, FGF21 receptors are expressed on GCs, so we speculate that it might affect female reproduction by regulating their physiological activities. Here, we showed that FGF21, fibroblast growth factor receptor-1(FGFR1), and beta-klotho (KLB) were expressed in porcine GCs. ELISA assays showed that estradiol (E2) production was increased significantly when treating GCs with recombinant FGF21 (rFGF21). In addition, rFGF21 upregulated the mRNA and protein levels of E2 synthesis-related genes including StAR, CYP11A1, and CYP19A1 in porcine GCs. Correspondingly, FGF21 siRNA inhibited E2 levels and its synthesis-related gene expression. After rFGF21 treatment, CCK8 showed increased cell viability, and flow cytometry showed that the number of S phase increased, and cycle-related genes also increased. However, treatment with FGF21 siRNA to porcine GCs suppressed the cell cycle, viability, and EdU positive cell number. Consequently, FGF21/FGFR1/KLB forms a complex to activate the phosphatidylinositol-3-kinase (PI3K)/AKT/mTOR signaling pathway and further promote the proliferation and E2 synthesis in porcine GCs. Collectively, these findings suggests that FGF21 regulates porcine ovarian folliculogenesis.
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Affiliation(s)
- Yamei Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Junjie Xu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Sheng Jie Shi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Xiaoge Zhou
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Liguang Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Liang Huang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Lei Gao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Weijun Pang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Gongshe Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Guiyan Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, 712100, China; Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
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15
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Mori M, Tando S, Ogi H, Tonosaki M, Yaoi T, Fujimori A, Itoh K. Loss of abnormal spindle-like, microcephaly-associated (Aspm) disrupts female folliculogenesis in mice during maturation and aging. Reprod Biol 2022; 22:100673. [PMID: 35901620 DOI: 10.1016/j.repbio.2022.100673] [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: 03/17/2022] [Revised: 07/05/2022] [Accepted: 07/08/2022] [Indexed: 10/16/2022]
Abstract
The abnormal spindle-like, microcephaly-associated (ASPM) gene is a causative gene of autosomal recessive primary microcephaly (MCPH) 5 in humans, which is characterized by a reduction in brain volume. It was previously reported that truncated Aspm proteins in transgenic mice caused major defects in the germline, a severe reduction in ovary weight and the number of follicles accompanied by reduced fertility. However; it remains unknown whether a loss of Aspm induces abnormal ovarian function, resulting in female infertility. In order to assess the ovary function, we examined vaginal smear cytology from the age of 7 weeks to 100 weeks in CAG-mediated Cre-loxP conditional Aspm-/- knockout mice and control female mice. In addition, we evaluated the ovarian size, fibrosis ratio and the number of follicles (primordial, primary, secondary, antral and atretic follicles) in mice from 15 weeks to 100 weeks old by image analyses. Mann-Whitney U-test was used for statistical analysis. The size of the ovary was significantly reduced in Aspm knockout mice at 15-20 weeks, 40-50 weeks and 70-80 weeks old compared with the control mice. Furthermore, at all stages, we found a severe decrease in the number of developing follicles at 10-15 weeks, 40-50 weeks and 70-80 weeks old, accompanied by disrupted cyclic changes of vaginal cytology and an aberrant upregulation of Foxo3, Kitl, and Lhcgr in Aspm knockout female. These results suggested that Aspm might play an important role in the folliculogenesis and estrous cyclicity of the postnatal ovary during maturation and aging.
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Affiliation(s)
- Miyuki Mori
- Department of Pathology and Applied Neurobiology, Kyoto Prefectural University of Medicine (KPUM), Graduate School of Medical Science, Kyoto, Japan
| | - So Tando
- Department of Pathology and Applied Neurobiology, Kyoto Prefectural University of Medicine (KPUM), Graduate School of Medical Science, Kyoto, Japan
| | - Hiroshi Ogi
- Department of Pathology and Applied Neurobiology, Kyoto Prefectural University of Medicine (KPUM), Graduate School of Medical Science, Kyoto, Japan; SCREEN Holdings Co., Ltd. (SCREEN), Kyoto, Japan
| | - Madoka Tonosaki
- Department of Pathology and Applied Neurobiology, Kyoto Prefectural University of Medicine (KPUM), Graduate School of Medical Science, Kyoto, Japan
| | - Takeshi Yaoi
- Department of Pathology and Applied Neurobiology, Kyoto Prefectural University of Medicine (KPUM), Graduate School of Medical Science, Kyoto, Japan
| | - Akira Fujimori
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Chiba, Japan
| | - Kyoko Itoh
- Department of Pathology and Applied Neurobiology, Kyoto Prefectural University of Medicine (KPUM), Graduate School of Medical Science, Kyoto, Japan.
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16
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Sahoo SS, Ramanand SG, Gao Y, Abbas A, Kumar A, Cuevas IC, Li HD, Aguilar M, Xing C, Mani RS, Castrillon DH. FOXA2 suppresses endometrial carcinogenesis and epithelial-mesenchymal transition by regulating enhancer activity. J Clin Invest 2022; 132:157574. [PMID: 35703180 PMCID: PMC9197528 DOI: 10.1172/jci157574] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 05/04/2022] [Indexed: 01/23/2023] Open
Abstract
FOXA2 encodes a transcription factor mutated in 10% of endometrial cancers (ECs), with a higher mutation rate in aggressive variants. FOXA2 has essential roles in embryonic and uterine development. However, FOXA2’s role in EC is incompletely understood. Functional investigations using human and mouse EC cell lines revealed that FOXA2 controls endometrial epithelial gene expression programs regulating cell proliferation, adhesion, and endometrial-epithelial transition. In live animals, conditional inactivation of Foxa2 or Pten alone in endometrial epithelium did not result in ECs, but simultaneous inactivation of both genes resulted in lethal ECs with complete penetrance, establishing potent synergism between Foxa2 and PI3K signaling. Studies in tumor-derived cell lines and organoids highlighted additional invasion and cell growth phenotypes associated with malignant transformation and identified key mediators, including Myc and Cdh1. Transcriptome and cistrome analyses revealed that FOXA2 broadly controls gene expression programs through modification of enhancer activity in addition to regulating specific target genes, rationalizing its tumor suppressor functions. By integrating results from our cell lines, organoids, animal models, and patient data, our findings demonstrated that FOXA2 is an endometrial tumor suppressor associated with aggressive disease and with shared commonalities among its roles in endometrial function and carcinogenesis.
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Affiliation(s)
| | | | | | | | - Ashwani Kumar
- Eugene McDermott Center for Human Growth and Development
| | | | | | | | - Chao Xing
- Eugene McDermott Center for Human Growth and Development.,Department of Bioinformatics.,Department of Population and Data Sciences
| | - Ram S Mani
- Department of Pathology.,Harold C. Simmons Comprehensive Cancer Center.,Department of Urology, and
| | - Diego H Castrillon
- Department of Pathology.,Harold C. Simmons Comprehensive Cancer Center.,Department of Obstetrics and Gynecology, UT Southwestern Medical Center, Dallas, Texas, USA
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17
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Kim J, You YJ. Oocyte Quiescence: From Formation to Awakening. Endocrinology 2022; 163:6572508. [PMID: 35452125 DOI: 10.1210/endocr/bqac049] [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: 01/07/2022] [Indexed: 11/19/2022]
Abstract
Decades of work using various model organisms have resulted in an exciting and emerging field of oocyte maturation. High levels of insulin and active mammalian target of rapamycin signals, indicative of a good nutritional environment, and hormones such as gonadotrophin, indicative of the growth of the organism, work together to control oocyte maturation to ensure that reproduction happens at the right timing under the right conditions. In the wild, animals often face serious challenges to maintain oocyte quiescence under long-term unfavorable conditions in the absence of mates or food. Failure to maintain oocyte quiescence will result in activation of oocytes at the wrong time and thus lead to exhaustion of the oocyte pool and sterility of the organism. In this review, we discuss the shared mechanisms in oocyte quiescence and awakening and a conserved role of noradrenergic signals in maintenance of the quiescent oocyte pool under unfavorable conditions in simple model organisms.
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Affiliation(s)
- Jeongho Kim
- Department of Biological Sciences, Inha University, Incheon, South Korea
| | - Young-Jai You
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, USA
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18
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Luo X, Xu J, Zhao R, Qin J, Wang X, Yan Y, Wang LJ, Wang G, Yang X. The Role of Inactivated NF-κB in Premature Ovarian Failure. THE AMERICAN JOURNAL OF PATHOLOGY 2022; 192:468-483. [PMID: 34971586 DOI: 10.1016/j.ajpath.2021.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/25/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
Premature ovarian failure (POF) is defined as deployment of amenorrhea due to the cessation of ovarian function in a woman younger than 40 years old. The pathologic mechanism of POF is not yet well understood, although genetic aberrations, autoimmune damage, and environmental factors have been identified. The current study demonstrated that NF-κB inactivation is closely associated with the development of POF based on the data from literature and cyclophosphamide (Cytoxan)-induced POF mouse model. In the successfully established NF-κB-inactivated mouse model, the results showed the reduced expression of nuclear p65 and the increased expression of IκBα in ovarian granulosa cells; the reduced numbers of antral follicles; the reduction of Ki-67/proliferating cell nuclear antigen-labeled cell proliferation and enhanced Fas/FasL-dependent apoptosis in granulosa cells; the reduced level of E2 and anti-Müllerian hormone; the decreased expression of follicle-stimulating hormone receptor and cytochrome P450 family 19 subfamily A member 1 (CYP19A1) in granulosa cells, which was reversed in the context of blocking NF-κB signaling with BAY 11-7082; and the decreased expressions of glucose-regulated protein 78 (GRP78), activating transcription factor 6, protein kinase R-like endoplasmic reticulum kinase, and inositol-requiring enzyme 1 in granulosa cells. Dual-luciferase reporter assay demonstrated that p50 stimulated the transcription of GRP78, and NF-κB affected the expression of follicle-stimulating hormone receptor and promoted granulosa cell proliferation through GRP78-mediated endoplasmic reticulum stress. Taken together, these data indicate, for the first time, that the inactivation of NF-κB signaling plays an important role in POF.
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Affiliation(s)
- Xin Luo
- International Joint Laboratory for Embryonic Development and Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Junjie Xu
- International Joint Laboratory for Embryonic Development and Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Ran Zhao
- International Joint Laboratory for Embryonic Development and Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Jiajia Qin
- Gynecology, Chinese Medicine College, Jinan University, Guangzhou, China
| | - Xiaoyu Wang
- International Joint Laboratory for Embryonic Development and Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Yu Yan
- International Joint Laboratory for Embryonic Development and Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Li-Jing Wang
- Institute of Vascular Biological Sciences, Guangdong Pharmaceutical University, Guangzhou, China
| | - Guang Wang
- International Joint Laboratory for Embryonic Development and Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China; Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China; Guangdong-Hong Kong Metabolism and Reproduction Joint Laboratory, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China.
| | - Xuesong Yang
- International Joint Laboratory for Embryonic Development and Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China; Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China; Guangdong-Hong Kong Metabolism and Reproduction Joint Laboratory, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China.
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19
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Zhu FY, Wang LL, Meng TG, Wang RL, Yang ZX, Cao Y, Zhu GY, Jin Z, Gao LL, Zeng WT, Wang ZB, Sun QY, Zhang D. Inhibiting bridge integrator 2 phosphorylation leads to improved oocyte quality, ovarian health and fertility in aging and after chemotherapy in mice. NATURE AGING 2021; 1:1010-1023. [PMID: 37118338 DOI: 10.1038/s43587-021-00133-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 10/04/2021] [Indexed: 04/30/2023]
Abstract
Female ovaries degenerate about 20 years earlier than testes leading to reduced primordial follicle reserve and a reduction in oocyte quality. Here we found that bridge integrator 2 (BIN2) is enriched in mouse ovaries and oocytes and that global knockout of this protein improves both female fertility and oocyte quality. Quantitative ovarian proteomics and phosphoproteomics showed that Bin2 knockout led to a decrease in phosphorylated ribosomal protein S6 (p-RPS6), a component of the mammalian target of rapamycin pathway and greatly increased nicotinamide nucleotide transhydrogenase (NNT), the free-radical detoxifier. Mechanistically, we find that phosphorylation of BIN2 at Thr423 and Ser424 leads to its translocation from the membrane to the cytoplasm, subsequent phosphorylation of RPS6 and inhibition of Nnt translation. We synthesized a BIN2-penetrating peptide (BPP) designed to inhibit BIN2 phosphorylation and found that a 3-week BPP treatment improved primordial follicle reserve and oocyte quality in aging and after chemotherapy-induced premature ovarian failure without discernible side effects.
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Affiliation(s)
- Feng-Yu Zhu
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Li-Li Wang
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Tie-Gang Meng
- Fertility Preservation Lab and Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, China
- State Key Lab of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Ruo-Lei Wang
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Zhi-Xia Yang
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Ying Cao
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Gang-Yi Zhu
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Zhen Jin
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Lei-Lei Gao
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Wen-Tao Zeng
- Animal Core Facility, Nanjing Medical University, Nanjing, China
| | - Zhen-Bo Wang
- State Key Lab of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
| | - Qing-Yuan Sun
- Fertility Preservation Lab and Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, China.
| | - Dong Zhang
- State Key Lab of Reproductive Medicine, Nanjing Medical University, Nanjing, China.
- Animal Core Facility, Nanjing Medical University, Nanjing, China.
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20
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Burton JJN, Luke AJ, Pepling ME. Regulation of mouse primordial follicle formation by signaling through the PI3K pathway. Biol Reprod 2021; 106:515-525. [PMID: 34725674 DOI: 10.1093/biolre/ioab204] [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] [Received: 06/18/2021] [Revised: 10/04/2021] [Accepted: 10/27/2021] [Indexed: 11/13/2022] Open
Abstract
Cell signaling mediated by the KIT receptor is critical for many aspects of oogenesis including the proliferation and migration of primordial germ cells, as well as the survival, growth, and maturation of ovarian follicles. We previously showed that KIT regulates cyst breakdown and primordial follicle formation, and in this study, have investigated the mechanisms downstream of the receptor by modulating the activity of two downstream signaling cascades: the phosphoinositide 3-kinase (PI3K) and the mitogen-activated protein kinase (MAPK) pathways. E17.5 ovaries were cultured for five days with a daily dose of media supplemented with either the PI3K inhibitor LY294002, the MEK inhibitor U0126, or a DMSO vehicle control. Our histological observations aligned with the established role of PI3K in oocyte growth and primordial follicle activation but also revealed that LY294002 treatment delayed the processes of cyst breakdown and primordial follicle formation. U0126 treatment also led to a reduction in oocyte growth and follicle development but did not appear to affect cyst breakdown. The delay in cyst breakdown was mitigated when ovaries were dually dosed with LY294002 and KITL, suggesting that while KIT may signal through PI3K to promote cyst breakdown, other signaling networks downstream of the receptor could compensate. These observations unearth a role for PI3K signaling in the establishment of the ovarian reserve and suggest that PI3K might be the primary mediator of KIT-induced cyst breakdown and primordial follicle formation in the mouse ovary.
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Affiliation(s)
| | - Amanda J Luke
- Department of Biology, Syracuse University, Syracuse, New York
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21
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Kim E, Cai L, Hyun SH. Effects of Stem Cell Factor/c-Kit Signaling on In Vitro Maturation of Porcine Oocytes and Subsequent Developmental Competence After Fertilization. Front Vet Sci 2021; 8:745488. [PMID: 34692812 PMCID: PMC8531509 DOI: 10.3389/fvets.2021.745488] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/06/2021] [Indexed: 11/13/2022] Open
Abstract
Stem cell factor (SCF), also known as c-Kit ligand, plays an important role in the proliferation of primordial germ cells and the survival of oocytes during follicular development. The aim of this study was to investigate the effect of SCF/c-Kit signaling on in vitro maturation (IVM) of porcine oocytes by analyzing nuclear and cytoplasmic maturation, oocyte size, cumulus cell expansion, and developmental competence to the blastocyst stage. Moreover, mRNA expression patterns of porcine cumulus cells and oocytes were evaluated using qRT-PCR. Following 42 h of IVM, 10 and 50 ng/mL SCF-treated groups exhibited significantly (P < 0.05) increased polar body extrusion rates and intracellular glutathione levels compared with the control group. The cumulus expansion index significantly (P < 0.05) increased in all SCF-treated groups compared with the control samples. mRNA levels of the proapoptotic gene Bax and apoptosis-related cysteine peptidase Caspase3 were lower in SCF-treated cumulus cells than in the control group. Notably, the diameter of oocytes after IVM, the mRNA expression of well-known oocyte-secreted factors (GDF9 and BMP15), and an oocyte-specific protein essential for ovulation and oocyte health (YBX2) were significantly (P < 0.05) higher in SCF-treated than in non-treated oocytes. Inhibition of c-Kit during porcine IVM using ACK2, an antagonistic blocker of c-Kit, significantly (P < 0.05) decreased the polar body extrusion rate compared with the control, as well as blastocyst formation rate compared with the 10 ng/mL SCF-treated group. In conclusion, the effect of SCF/c-Kit-mediated signaling during porcine IVM could be ascribed to the reduced expression of apoptosis-related genes and higher expression of oocyte-specific/secreted factors.
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Affiliation(s)
- Eunhye Kim
- Laboratory of Veterinary Embryology and Biotechnology, Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea.,Graduate School of Veterinary Biosecurity and Protection, Chungbuk National University, Cheongju, South Korea
| | - Lian Cai
- Laboratory of Veterinary Embryology and Biotechnology, Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea.,Graduate School of Veterinary Biosecurity and Protection, Chungbuk National University, Cheongju, South Korea
| | - Sang-Hwan Hyun
- Laboratory of Veterinary Embryology and Biotechnology, Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, South Korea.,Graduate School of Veterinary Biosecurity and Protection, Chungbuk National University, Cheongju, South Korea
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22
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Adeniran BV, Bjarkadottir BD, Appeltant R, Lane S, Williams SA. Improved preservation of ovarian tissue morphology that is compatible with antigen detection using a fixative mixture of formalin and acetic acid. Hum Reprod 2021; 36:1871-1890. [PMID: 33956944 PMCID: PMC8213453 DOI: 10.1093/humrep/deab075] [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: 12/13/2019] [Revised: 02/13/2021] [Indexed: 11/15/2022] Open
Abstract
STUDY QUESTION Can ovarian tissue morphology be better preserved whilst enabling histological molecular analyses following fixation with a novel fixative, neutral buffered formalin (NBF) with 5% acetic acid (referred to hereafter as Form-Acetic)? SUMMARY ANSWER Fixation with Form-Acetic improved ovarian tissue histology compared to NBF in multiple species while still enabling histological molecular analyses. WHAT IS KNOWN ALREADY NBF fixation results in tissue shrinkage in various tissue types including the ovary. Components of ovarian tissue, notably follicles, are particularly susceptible to NBF-induced morphological alterations and can lead to data misrepresentation. Bouin’s solution (which contains 5% acetic acid) better preserves tissue architecture compared to NBF but is limited for immunohistochemical analyses. STUDY DESIGN, SIZE, DURATION A comparison of routinely used fixatives, NBF and Bouin’s, and a new fixative, Form-Acetic was carried out. Ovarian tissue was used from three different species: human (n = 5 patients), sheep (n = 3; 6 ovaries; 3 animals per condition) and mouse (n = 14 mice; 3 ovaries from 3 different animals per condition). PARTICIPANTS/MATERIALS, SETTING, METHODS Ovarian tissue from humans (aged 13 weeks to 32 years), sheep (reproductively young i.e. 3–6 months) and mice (10 weeks old) were obtained and fixed in 2 ml NBF, Bouin’s or Form-Acetic for 4, 8, and 24 h at room temperature. Tissues were embedded and sectioned. Five-micron sections were stained with haemotoxylin and eosin (H&E) and the percentage of artefact (clear space as a result of shrinkage) between ovarian structures was calculated. Additional histological staining using Periodic acid-Schiff and Masson’s trichrome were performed on 8 and 24 h NBF, Bouin’s and Form-Acetic fixed samples to assess the compatibility of the new fixative with stains. On ovarian tissue fixed for both 8 and 24 h in NBF and Form-Acetic, immunohistochemistry (IHC) studies to detect FOXO3a, FoxL2, collagen IV, laminin and anti-Müllerian hormone (AMH) proteins were performed in addition to the terminal deoxynucleotidyl transferase nick end labelling (TUNEL) assay to determine the compatibility of Form-Acetic fixation with types of histological molecular analyses. MAIN RESULTS AND THE ROLE OF CHANCE Fixation in Form-Acetic improved ovarian tissue morphology compared to NBF from all three species and either slightly improved or was comparable to Bouin’s for human, mouse and sheep tissues. Form-Acetic was compatible with H&E, Periodic acid-Schiff and Masson’s trichrome staining and all proteins (FOXO3a, FoxL2, collagen IV and laminin and AMH) could be detected via IHC. Furthermore, Form-Acetic, unlike NBF, enabled antigen recognition for most of the proteins tested without the need for antigen retrieval. Form-Acetic also enabled the detection of damaged DNA via the TUNEL assay using fluorescence. LARGE SCALE DATA N/A LIMITATIONS, REASONS FOR CAUTION In this study, IHC analysis was performed on a select number of protein types in ovarian tissue thus encouraging further studies to confirm the use of Form-Acetic in enabling the detection of a wider range of protein forms in addition to other tissue types. WIDER IMPLICATIONS OF THE FINDINGS The simplicity in preparation of Form-Acetic and its superior preservative properties whilst enabling forms of histological molecular analyses make it a highly valuable tool for studying ovarian tissue. We, therefore, recommend that Form-Acetic replaces currently used fixatives and encourage others to introduce it into their research workflow. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the Oxford Medical Research Council Doctoral Training Programme (Oxford MRC-DTP) grant awarded to B.D.B. (Grant no. MR/N013468/1), the Fondation Hoffmann supporting R.A. and the Petroleum Technology Development Fund (PTDF) awarded to B.V.A.
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Affiliation(s)
- B V Adeniran
- Nuffield Department of Women's and Reproductive Health, Women's Centre, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - B D Bjarkadottir
- Nuffield Department of Women's and Reproductive Health, Women's Centre, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - R Appeltant
- Nuffield Department of Women's and Reproductive Health, Women's Centre, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - S Lane
- Future Fertility Programme Oxford, Oxford, UK.,Department of Paediatric Oncology and Haematology, Children's Hospital Oxford, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - S A Williams
- Nuffield Department of Women's and Reproductive Health, Women's Centre, John Radcliffe Hospital, University of Oxford, Oxford, UK.,Future Fertility Programme Oxford, Oxford, UK
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23
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Jiao Z, Bukulmez O. Potential roles of experimental reproductive technologies in infertile women with diminished ovarian reserve. J Assist Reprod Genet 2021; 38:2507-2517. [PMID: 34100154 DOI: 10.1007/s10815-021-02246-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 05/25/2021] [Indexed: 12/24/2022] Open
Abstract
In assisted reproductive technology treatment, diminished ovarian reserve (DOR) is a condition of utmost clinical and scientific relevance because of its negative influence on patient outcomes. The current methods of infertility treatment may be unsuitable for many women with DOR, which support the need for development of additional approaches to achieve fertility restoration. Various techniques have been tried to improve the quality and increase the quantity of oocytes in DOR patients, including mitochondrial transfer, activation of primordial follicles, in vitro culture of follicles, and regeneration of oocytes from various stem cells. Herein, we review the science behind these experimental reproductive technologies and their potential use to date in clinical studies for infertility treatment in women with DOR.
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Affiliation(s)
- Zexu Jiao
- Division of Reproductive Endocrinology and Infertility, Fertility and Advanced Reproductive Medicine Assisted Reproductive Technologies Program, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Orhan Bukulmez
- Division of Reproductive Endocrinology and Infertility, Fertility and Advanced Reproductive Medicine Assisted Reproductive Technologies Program, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX, USA
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24
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Habara O, Logan CY, Kanai-Azuma M, Nusse R, Takase HM. WNT signaling in pre-granulosa cells is required for ovarian folliculogenesis and female fertility. Development 2021; 148:261700. [PMID: 33914868 PMCID: PMC8126407 DOI: 10.1242/dev.198846] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/26/2021] [Indexed: 01/26/2023]
Abstract
In mammalian ovaries, immature oocytes are reserved in primordial follicles until their activation for potential ovulation. Precise control of primordial follicle activation (PFA) is essential for reproduction, but how this is achieved is unclear. Here, we show that canonical wingless-type MMTV integration site family (WNT) signaling is pivotal for pre-granulosa cell (pre-GC) activation during PFA. We identified several WNT ligands expressed in pre-GCs that act in an autocrine manner. Inhibition of WNT secretion from pre-GCs/GCs by conditional knockout (cKO) of the wntless (Wls) gene led to female infertility. In Wls cKO mice, GC layer thickness was greatly reduced in growing follicles, which resulted in impaired oocyte growth with both an abnormal, sustained nuclear localization of forkhead box O3 (FOXO3) and reduced phosphorylation of ribosomal protein S6 (RPS6). Constitutive stabilization of β-catenin (CTNNB1) in pre-GCs/GCs induced morphological changes of pre-GCs from a squamous into a cuboidal form, though it did not influence oocyte activation. Our results reveal that canonical WNT signaling plays a permissive role in the transition of pre-GCs to GCs, which is an essential step to support oocyte growth.
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Affiliation(s)
- Okiko Habara
- Laboratory for Organismal Patterning, RIKEN Center for Biosystems Dynamics Research, Kobe 650-0047, Japan
| | - Catriona Y Logan
- Howard Hughes Medical Institute, Department of Developmental Biology and Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Masami Kanai-Azuma
- Department of Experimental Animal Model for Human Disease, Center for Experimental Animals, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Roeland Nusse
- Howard Hughes Medical Institute, Department of Developmental Biology and Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Hinako M Takase
- Laboratory for Organismal Patterning, RIKEN Center for Biosystems Dynamics Research, Kobe 650-0047, Japan.,Department of Experimental Animal Model for Human Disease, Center for Experimental Animals, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
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25
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Meinsohn MC, Hughes CHK, Estienne A, Saatcioglu HD, Pépin D, Duggavathi R, Murphy BD. A role for orphan nuclear receptor liver receptor homolog-1 (LRH-1, NR5A2) in primordial follicle activation. Sci Rep 2021; 11:1079. [PMID: 33441767 PMCID: PMC7807074 DOI: 10.1038/s41598-020-80178-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/17/2020] [Indexed: 02/07/2023] Open
Abstract
Liver receptor homolog-1 (NR5A2) is expressed specifically in granulosa cells of developing ovarian follicles where it regulates the late stages of follicle development and ovulation. To establish its effects earlier in the trajectory of follicular development, NR5A2 was depleted from granulosa cells of murine primordial and primary follicles. Follicle populations were enumerated in neonates at postnatal day 4 (PND4) coinciding with the end of the formation of the primordial follicle pool. The frequency of primordial follicles in PND4 conditional knockout (cKO) ovaries was greater and primary follicles were substantially fewer relative to control (CON) counterparts. Ten-day in vitro culture of PND4 ovaries recapitulated in vivo findings and indicated that CON mice developed primary follicles in the ovarian medulla to a greater extent than did cKO animals. Two subsets of primordial follicles were observed in wildtype ovaries: one that expressed NR5A2 and the second in which the transcript was absent. Neither expressed the mitotic marker. KI-67, indicating their developmental quiescence. RNA sequencing on PND4 demonstrated that loss of NR5A2 induced changes in 432 transcripts, including quiescence markers, inhibitors of follicle activation, and regulators of cellular migration and epithelial-to-mesenchymal transition. These experiments suggest that NR5A2 expression poises primordial follicles for entry into the developing pool.
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Affiliation(s)
- Marie-Charlotte Meinsohn
- Centre de recherche en reproduction et fertilité, Université de Montréal, 3200 rue Sicotte, St-Hyacinthe, QC, J2S 7C6, Canada
| | - Camilla H K Hughes
- Centre de recherche en reproduction et fertilité, Université de Montréal, 3200 rue Sicotte, St-Hyacinthe, QC, J2S 7C6, Canada
| | - Anthony Estienne
- Centre de recherche en reproduction et fertilité, Université de Montréal, 3200 rue Sicotte, St-Hyacinthe, QC, J2S 7C6, Canada
| | - Hatice D Saatcioglu
- Pediatric Surgical Research Laboratories, Simches Research Center, Massachusetts General Hospital, 185 Cambridge St., Boston, MA, 02114, USA
| | - David Pépin
- Pediatric Surgical Research Laboratories, Simches Research Center, Massachusetts General Hospital, 185 Cambridge St., Boston, MA, 02114, USA
| | - Raj Duggavathi
- Department of Animal Science, McGill University, 21111 Lakeshore Rd., MS1085, Ste-Anne de Bellevue, QC, H9X 3V9, Canada
| | - Bruce D Murphy
- Centre de recherche en reproduction et fertilité, Université de Montréal, 3200 rue Sicotte, St-Hyacinthe, QC, J2S 7C6, Canada.
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26
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Wang W, Todorov P, Isachenko E, Rahimi G, Mallmann P, Wang M, Isachenko V. In vitro activation of cryopreserved ovarian tissue: A single-arm meta-analysis and systematic review. Eur J Obstet Gynecol Reprod Biol 2021; 258:258-264. [PMID: 33485262 DOI: 10.1016/j.ejogrb.2021.01.014] [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: 10/20/2020] [Revised: 12/22/2020] [Accepted: 01/10/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Primordial follicles in premature ovarian failure (POF) patients are very difficult to be activated spontaneously, so that mature oocytes are difficult to be obtained for in vitro fertilization. The aim of our review is to analyze and to systematize the published data regarding effectiveness of different strategies for in vitro activation of cryopreserved ovarian tissue. STUDY DESIGN According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a review of the literature was performed for all relevant full-text articles published in PubMed in English. Meta-analysis conducted using STATA 14.0. The random-effects model was used to combine 8 study results because the examination of heterogeneity was minimal. RESULTS One hundred and seventy seven patients after in vitro activation treatment (IVA) of ovarian tissue had accumulatively 26 pregnancies through IVF or natural pregnancy and then produced 18 live births. The random-effects model showed that the total clinical pregnancy and baby born rates reported in 8 studies evidence about effectiveness of IVA. CONCLUSION In vitro activation of primordial follicles as a new potential treatment for ovarian disorder patients, can be a promising option for fertility preservation. Drug-free activation of ovarian tissue in comparison with drug-included activation seemed to be more efficient.
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Affiliation(s)
- Wanxue Wang
- Research Group for Reproductive Medicine, University of Cologne, Kerpener Str. 34, 50931, Cologne, Germany.
| | - Plamen Todorov
- Institute of Biology and Immunology of Reproduction, Tzarigradsko Shosse 73, 1113, Sofia, Bulgaria.
| | - Evgenia Isachenko
- Research Group for Reproductive Medicine, University of Cologne, Kerpener Str. 34, 50931, Cologne, Germany.
| | - Gohar Rahimi
- Research Group for Reproductive Medicine, University of Cologne, Kerpener Str. 34, 50931, Cologne, Germany.
| | - Peter Mallmann
- Research Group for Reproductive Medicine, University of Cologne, Kerpener Str. 34, 50931, Cologne, Germany.
| | - Mengying Wang
- Research Group for Reproductive Medicine, University of Cologne, Kerpener Str. 34, 50931, Cologne, Germany.
| | - Vladimir Isachenko
- Research Group for Reproductive Medicine, University of Cologne, Kerpener Str. 34, 50931, Cologne, Germany.
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27
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Grosbois J, Devos M, Demeestere I. Implications of Nonphysiological Ovarian Primordial Follicle Activation for Fertility Preservation. Endocr Rev 2020; 41:5882019. [PMID: 32761180 DOI: 10.1210/endrev/bnaa020] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/31/2020] [Indexed: 02/06/2023]
Abstract
In recent years, ovarian tissue cryopreservation has rapidly developed as a successful method for preserving the fertility of girls and young women with cancer or benign conditions requiring gonadotoxic therapy, and is now becoming widely recognized as an effective alternative to oocyte and embryo freezing when not feasible. Primordial follicles are the most abundant population of follicles in the ovary, and their relatively quiescent metabolism makes them more resistant to cryoinjury. This dormant pool represents a key target for fertility preservation strategies as a resource for generating high-quality oocytes. However, development of mature, competent oocytes derived from primordial follicles is challenging, particularly in larger mammals. One of the main barriers is the substantial knowledge gap regarding the regulation of the balance between dormancy and activation of primordial follicles to initiate their growing phase. In addition, experimental and clinical factors also affect dormant follicle demise, while the mechanisms involved remain largely to be elucidated. Moreover, most of our basic knowledge of these processes comes from rodent studies and should be extrapolated to humans with caution, considering the differences between species in the reproductive field. Overcoming these obstacles is essential to improving both the quantity and the quality of mature oocytes available for further fertilization, and may have valuable biological and clinical applications, especially in fertility preservation procedures. This review provides an update on current knowledge of mammalian primordial follicle activation under both physiological and nonphysiological conditions, and discusses implications for fertility preservation and priorities for future research.
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Affiliation(s)
- Johanne Grosbois
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium.,Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Melody Devos
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium
| | - Isabelle Demeestere
- Research Laboratory in Human Reproduction, Université Libre de Bruxelles, Brussels, Belgium.,Obstetrics and Gynecology Department, Erasme Hospital, Brussels, Belgium
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Jiang Y, Xin X, Pan X, Zhang A, Zhang Z, Li J, Yuan X. STAT4 targets KISS1 to promote the apoptosis of ovarian granulosa cells. J Ovarian Res 2020; 13:135. [PMID: 33218349 PMCID: PMC7679982 DOI: 10.1186/s13048-020-00741-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 11/12/2020] [Indexed: 12/14/2022] Open
Abstract
Background In mammals, it is known that the estradiol-17β (E2) is mainly synthetized in ovarian granulosa cells (GCs), and the excessive apoptosis of GCs induces the follicular atresia. Many studies have implicated the essential role of KISS1, with the pro-synthetic effect of E2 and the anti-apoptotic effect on GCs, in the mammalian folliculogenesis, and several STAT4 potential binding sites were previously predicted on the promoter of KISS1 in pigs. However, the biological effects of STAT4 on GCs and the molecular regulation between STAT4 and KISS1 remained largely unknown. Methods Using the porcine GCs as the cellular model, the overexpression plasmid, small interfering RNA, 5′-deletion and luciferase assay were applied to investigate the molecular mechanisms for STAT4 regulating the expression of KISS1. Results In this study, the STAT4 negatively regulated the mRNA and protein levels of KISS1 in porcine GCs, and the mRNA level of STAT4 was observed to significantly decrease from immature to mature follicles, which was inversed with that of KISS1. The relative luciferase activity of KISS1 promoter was significantly increased with deletion of the fourth potential binding site (− 305/− 295), and ChIP further confirmed that the STAT4 bound at − 305/− 295 region of KISS1. Besides, the STAT4 significantly regulated the mRNA levels of PDK1, FOXO3 and TSC2 of PI3K signaling pathway to promote the cell apoptosis and the percentage of cells at G0/G1 phase of cell cycle in GCs. Alternatively, the STAT4 significantly decreased the mRNA levels of CYP17, 3B-HSD, 17B-33 HSD, ESR1, and ESR2, as well as the concentration of E2 in GCs. Furthermore, interfering with the expression of STAT4 was observed to significantly stimulate the pro-synthetic effect of E2 and anti-apoptotic effect of KISS1 in GCs. Conclusions Collectively, the STAT4 might directly target at − 305/− 295 region of KISS1 to negatively regulate the transcription of KISS1, promote the cell apoptosis via PI3K signaling pathway, suppress the synthesis of E2 through the estrogen signaling pathway in porcine GCs. These proposed works could provide useful insight in further investigations on the molecular functionalities of STAT4 and KISS1 in the folliculogenesis of mammals.
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Affiliation(s)
- Yao Jiang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, Guangdong, China
| | - Xiaoping Xin
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Xiangchun Pan
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Ailing Zhang
- College of Biology and Food Engineering/Development, Center of Applied Ecology and Ecological Engineering in Universities, Guangdong University of Education, Guangzhou, 510303, China
| | - Zhe Zhang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jiaqi Li
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.
| | - Xiaolong Yuan
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China. .,Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, Guangdong, China.
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Chen Y, Wang X, Yang C, Liu Q, Ran Z, Li X, He C. A mouse model reveals the events and underlying regulatory signals during the gonadotrophin-dependent phase of follicle development. Mol Hum Reprod 2020; 26:920-937. [PMID: 33063120 DOI: 10.1093/molehr/gaaa069] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/07/2020] [Indexed: 12/13/2022] Open
Abstract
During folliculogenesis, the gonadotrophin (GTH)-dependent phase begins at the small antral follicle stage and ends with Graafian follicles. In this study, pregnant mare's serum GTH was used to induce GTH-dependent folliculogenesis in mice, following which the developmental events that follicles undergo, as well as the underlying regulatory signals, were investigated at both the morphological and transcriptomic level. GTH-dependent folliculogenesis consisted of three phases: preparation, rapid growth and decelerated growth. In the preparation phase, comprising the first 12 h, granulosa cells completed the preparations for proliferation and differentiation, shifted energy metabolism to glycolysis, and reduced protein synthesis and processing. The rapid growth phase lasted from 12 to 24 h; in this phase, granulosa cells completed their proliferation, and follicles acquired the capacity for estradiol secretion and ovulation. Meanwhile, the decelerating growth phase occurred between 24 and 48 h of GTH-dependent folliculogenesis. In this phase, the proliferation and expansion of the follicular antrum were reduced, energy metabolism was shifted to oxidative phosphorylation, and cell migration and lipid metabolism were enhanced in preparation for luteinization. We also revealed the key signaling pathways that regulate GTH-dependent folliculogenesis and elucidated the activation sequence of these pathways. A comparison of our RNA-sequencing data with that reported for humans suggested that the mechanisms involved in mouse and human folliculogenesis are evolutionarily conserved. In this study, we draw a detailed atlas of GTH-dependent folliculogenesis, thereby laying the foundation for further investigation of the regulatory mechanisms underlying this process.
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Affiliation(s)
- Yingjun Chen
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,National Center for International Research on Animal Genetics, Breeding and reproduction, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,Department of Hubei Province Engineering Research Center in Buffalo Breeding and Products, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Xiaodong Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,National Center for International Research on Animal Genetics, Breeding and reproduction, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,Department of Hubei Province Engineering Research Center in Buffalo Breeding and Products, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Chan Yang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,National Center for International Research on Animal Genetics, Breeding and reproduction, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,Department of Hubei Province Engineering Research Center in Buffalo Breeding and Products, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Qinghua Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,National Center for International Research on Animal Genetics, Breeding and reproduction, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,Department of Hubei Province Engineering Research Center in Buffalo Breeding and Products, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Zaohong Ran
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,National Center for International Research on Animal Genetics, Breeding and reproduction, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,Department of Hubei Province Engineering Research Center in Buffalo Breeding and Products, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Xiang Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,National Center for International Research on Animal Genetics, Breeding and reproduction, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,Department of Hubei Province Engineering Research Center in Buffalo Breeding and Products, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Changjiu He
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,National Center for International Research on Animal Genetics, Breeding and reproduction, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,Department of Hubei Province Engineering Research Center in Buffalo Breeding and Products, Huazhong Agricultural University, Wuhan 430070, Hubei, China.,College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
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Kulus M, Kranc W, Jeseta M, Sujka-Kordowska P, Konwerska A, Ciesiółka S, Celichowski P, Moncrieff L, Kocherova I, Józkowiak M, Kulus J, Wieczorkiewicz M, Piotrowska-Kempisty H, Skowroński MT, Bukowska D, Machatkova M, Hanulakova S, Mozdziak P, Jaśkowski JM, Kempisty B, Antosik P. Cortical Granule Distribution and Expression Pattern of Genes Regulating Cellular Component Size, Morphogenesis, and Potential to Differentiation are Related to Oocyte Developmental Competence and Maturational Capacity In Vivo and In Vitro. Genes (Basel) 2020; 11:genes11070815. [PMID: 32708880 PMCID: PMC7397037 DOI: 10.3390/genes11070815] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 12/13/2022] Open
Abstract
Polyspermia is an adverse phenomenon during mammalian fertilization when more than one sperm fuses with a single oocyte. The egg cell is prepared to prevent polyspermia by, among other ways, producing cortical granules (CGs), which are specialized intracellular structures containing enzymes that aim to harden the zona pellucida and block the fusion of subsequent sperm. This work focused on exploring the expression profile of genes that may be associated with cortical reactions, and evaluated the distribution of CGs in immature oocytes and the peripheral density of CGs in mature oocytes. Oocytes were isolated and then processed for in vitro maturation (IVM). Transcriptomic analysis of genes belonging to five ontological groups has been conducted. Six genes showed increased expression after IVM (ARHGEF2, MAP1B, CXCL12, FN1, DAB2, and SOX9), while the majority of genes decreased expression after IVM. Using CG distribution analysis in immature oocytes, movement towards the cortical zone of the oocyte during meiotic competence acquisition was observed. CGs peripheral density decreased with the rise in meiotic competence during the IVM process. The current results reveal important new insights into the in vitro maturation of oocytes. Our results may serve as a basis for further studies to investigate the cortical reaction of oocytes.
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Affiliation(s)
- Magdalena Kulus
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.K.); (P.A.)
| | - Wiesława Kranc
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (W.K.); (I.K.)
| | - Michal Jeseta
- Department of Obstetrics and Gynecology, University Hospital and Masaryk University, 602 00 Brno, Czech Republic;
- Department of Veterinary Sciences, Czech University of Life Sciences in Prague, 165 00 Prague, Czech Republic
| | - Patrycja Sujka-Kordowska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.S.-K.); (A.K.); (S.C.); (P.C.); (L.M.)
- Department of Anatomy and Histology, University of Zielona Gora, 65-046 Zielona Gora, Poland
| | - Aneta Konwerska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.S.-K.); (A.K.); (S.C.); (P.C.); (L.M.)
| | - Sylwia Ciesiółka
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.S.-K.); (A.K.); (S.C.); (P.C.); (L.M.)
| | - Piotr Celichowski
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.S.-K.); (A.K.); (S.C.); (P.C.); (L.M.)
| | - Lisa Moncrieff
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.S.-K.); (A.K.); (S.C.); (P.C.); (L.M.)
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Ievgeniia Kocherova
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (W.K.); (I.K.)
| | - Małgorzata Józkowiak
- Department of Toxicology, Poznan University of Medical Sciences, 60-631 Poznan, Poland; (M.J.); (H.P.-K.)
| | - Jakub Kulus
- Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (J.K.); (D.B.); (J.M.J.)
| | - Maria Wieczorkiewicz
- Department of Basic and Preclinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.W.); (M.T.S.)
| | - Hanna Piotrowska-Kempisty
- Department of Toxicology, Poznan University of Medical Sciences, 60-631 Poznan, Poland; (M.J.); (H.P.-K.)
| | - Mariusz T. Skowroński
- Department of Basic and Preclinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.W.); (M.T.S.)
| | - Dorota Bukowska
- Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (J.K.); (D.B.); (J.M.J.)
| | - Marie Machatkova
- Veterinary Research Institute, 621 00 Brno, Czech Republic; (M.M.); (S.H.)
| | - Sarka Hanulakova
- Veterinary Research Institute, 621 00 Brno, Czech Republic; (M.M.); (S.H.)
| | - Paul Mozdziak
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA;
| | - Jędrzej M. Jaśkowski
- Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (J.K.); (D.B.); (J.M.J.)
| | - Bartosz Kempisty
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.K.); (P.A.)
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (W.K.); (I.K.)
- Department of Obstetrics and Gynecology, University Hospital and Masaryk University, 602 00 Brno, Czech Republic;
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.S.-K.); (A.K.); (S.C.); (P.C.); (L.M.)
- Correspondence: ; Tel.: +48-61-854-6418
| | - Paweł Antosik
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.K.); (P.A.)
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De Cian MC, Gregoire EP, Le Rolle M, Lachambre S, Mondin M, Bell S, Guigon CJ, Chassot AA, Chaboissier MC. R-spondin2 signaling is required for oocyte-driven intercellular communication and follicular growth. Cell Death Differ 2020; 27:2856-2871. [PMID: 32341451 PMCID: PMC7493947 DOI: 10.1038/s41418-020-0547-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 04/04/2020] [Accepted: 04/07/2020] [Indexed: 02/07/2023] Open
Abstract
R-spondin2 (RSPO2) is a member of the R-spondin family, which are secreted activators of the WNT/β-catenin (CTNNB1) signaling pathway. In the mouse postnatal ovary, WNT/CTNNB1 signaling is active in the oocyte and in the neighboring supporting cells, the granulosa cells. Although the role of Rspo2 has been previously studied using in vitro experiments, the results are conflicting and the in vivo ovarian function of Rspo2 remains unclear. In the present study, we found that RSPO2/Rspo2 expression is restricted to the oocyte of developing follicles in both human and mouse ovaries from the beginning of the follicular growth. In mice, genetic deletion of Rspo2 does not impair oocyte growth, but instead prevents cell cycle progression of neighboring granulosa cells, thus resulting in an arrest of follicular growth. We further show this cell cycle arrest to be independent of growth promoting GDF9 signaling, but rather associated with a downregulation of WNT/CTNNB1 signaling in granulosa cells. To confirm the contribution of WNT/CTNNB1 signaling in granulosa cell proliferation, we induced cell type specific deletion of Ctnnb1 postnatally. Strikingly, follicles lacking Ctnnb1 failed to develop beyond the primary stage. These results show that RSPO2 acts in a paracrine manner to sustain granulosa cell proliferation in early developing follicles. Taken together, our data demonstrate that the activation of WNT/CTNNB1 signaling by RSPO2 is essential for oocyte-granulosa cell interactions that drive maturation of the ovarian follicles and eventually female fertility.
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Affiliation(s)
- Marie-Cécile De Cian
- Université Côte d'Azur, CNRS, Inserm, iBV, Nice, France.,Université de Corte, Corte, France
| | | | | | | | - Magali Mondin
- Université de Bordeaux, UMS 3420 CNRS-US4 Inserm, Pôle d'imagerie photonique, Bordeaux, France
| | - Sheila Bell
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Céline J Guigon
- Université de Paris, BFA, UMR 8251, CNRS, ERL U1133, Inserm, Paris, France
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Laisk T, Tšuiko O, Jatsenko T, Hõrak P, Otala M, Lahdenperä M, Lummaa V, Tuuri T, Salumets A, Tapanainen JS. Demographic and evolutionary trends in ovarian function and aging. Hum Reprod Update 2020; 25:34-50. [PMID: 30346539 DOI: 10.1093/humupd/dmy031] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 09/03/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The human female reproductive lifespan is regulated by the dynamics of ovarian function, which in turn is influenced by several factors: from the basic molecular biological mechanisms governing folliculogenesis, to environmental and lifestyle factors affecting the ovarian reserve between conception and menopause. From a broader point of view, global and regional demographic trends play an additional important role in shaping the female reproductive lifespan, and finally, influences on an evolutionary scale have led to the reproductive senescence that precedes somatic senescence in humans. OBJECTIVE AND RATIONALE The narrative review covers reproductive medicine, by integrating the molecular mechanisms of ovarian function and aging with short-term demographic and long-term evolutionary trends. SEARCH METHODS PubMed and Google Scholar searches were performed with relevant keywords (menopause, folliculogenesis, reproductive aging, reproductive lifespan and life history theory). The reviewed articles and their references were restricted to those written in English. OUTCOMES We discuss and summarize the rapidly accumulating information from large-scale population-based and single-reproductive-cell genomic studies, their constraints and advantages in the context of female reproductive aging as well as their possible evolutionary significance on the life history trajectory from foetal-stage folliculogenesis until cessation of ovarian function in menopause. The relevant environmental and lifestyle factors and demographic trends are also discussed in the framework of predominant evolutionary hypotheses explaining the origin and maintenance of menopause. WIDER IMPLICATIONS The high speed at which new data are generated has so far raised more questions than it has provided solid answers and has been paralleled by a lack of satisfactory interpretations of the findings in the context of human life history theory. Therefore, the recent flood of data could offer an unprecedented tool for future research to possibly confirm or rewrite human evolutionary reproductive history, at the same time providing novel grounds for patient counselling and family planning strategies.
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Affiliation(s)
- Triin Laisk
- Competence Centre on Health Technologies, Tiigi 61b, Tartu, Estonia.,Institute of Clinical Medicine, Department of Obstetrics and Gynaecology, University of Tartu, L. Puusepa 8, Tartu, Estonia
| | - Olga Tšuiko
- Competence Centre on Health Technologies, Tiigi 61b, Tartu, Estonia.,Institute of Biomedicine and Translational Medicine, Department of Biomedicine, University of Tartu, Ravila 19, Tartu, Estonia
| | - Tatjana Jatsenko
- Competence Centre on Health Technologies, Tiigi 61b, Tartu, Estonia
| | - Peeter Hõrak
- Department of Zoology, University of Tartu, Vanemuise 46, Tartu, Estonia
| | - Marjut Otala
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 2, Helsinki, Finland
| | - Mirkka Lahdenperä
- Department of Biology, University of Turku, Turun yliopisto, Turku, Finland
| | - Virpi Lummaa
- Department of Biology, University of Turku, Turun yliopisto, Turku, Finland
| | - Timo Tuuri
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 2, Helsinki, Finland
| | - Andres Salumets
- Competence Centre on Health Technologies, Tiigi 61b, Tartu, Estonia.,Institute of Clinical Medicine, Department of Obstetrics and Gynaecology, University of Tartu, L. Puusepa 8, Tartu, Estonia.,Institute of Biomedicine and Translational Medicine, Department of Biomedicine, University of Tartu, Ravila 19, Tartu, Estonia.,Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 2, Helsinki, Finland
| | - Juha S Tapanainen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 2, Helsinki, Finland.,Department of Obstetrics and Gynecology, University Hospital of Oulu, University of Oulu, Medical Research Center Oulu and PEDEGO Research Unit, OYS Oulu, Finland
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PI3K Pathway Effectors pAKT and FOXO1 as Novel Markers of Endometrioid Intraepithelial Neoplasia. Int J Gynecol Pathol 2020; 38:503-513. [PMID: 30256235 DOI: 10.1097/pgp.0000000000000549] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The diagnosis of endometrioid intraepithelial neoplasia (EIN) is challenging owing to limited sampling, hormonal status, and other confounding histologic variables. Markers such as PTEN or PAX2 can delineate EIN in some cases, but are not wholly reliable. Clearly, new markers of EIN are needed. We explored several potential markers of EIN based rationally on molecular pathways most frequently misregulated in endometrial cancer: the 3-phosphoinositide kinase (PI3K)/AKT, β-catenin, and mismatch repair pathways. We studied PTEN, PAX2, β-catenin, and MLH1, in conjunction with 2 new markers-FOXO1 and phosphorylated AKT (pAKT)-not previously investigated in EIN. Benign (n=14) and EIN (n=35) endometria were analyzed by immunohistochemistry. Staining patterns were interpreted, tabulated, and scored by "clonal distinctiveness" in neoplastic lesions; that is, pattern alterations relative to normal glands. In normal endometria, FOXO1 was cytoplasmic in proliferative phase, but nuclear in secretory phase, showing that PI3K/FOXO1 participates in endometrial cycling and that FOXO1 is a readout of PI3K status. pAKT expression was low across normal endometria. FOXO1 or pAKT expression was altered in the majority of EINs (27/35, 77%), with FOXO1 and pAKT being co-altered only in some (20/35, 57%). β-catenin or MLH1 also exhibited clonal distinctiveness in EINs, showing that these are also useful markers in some cases. This is the first study to demonstrate the potential of pAKT and FOXO1 as biomarkers in the histopathologic evaluation of EIN. However, variability in expression poses challenges in interpretation.
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Alam MH, Miyano T. Interaction between growing oocytes and granulosa cells in vitro. Reprod Med Biol 2020; 19:13-23. [PMID: 31956281 PMCID: PMC6955591 DOI: 10.1002/rmb2.12292] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/22/2019] [Accepted: 07/25/2019] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Oocyte growth is accompanied by follicular development in mammalian ovaries. Since the discovery of two oocyte-derived factors, growth differentiation factor 9 (GDF9), and bone morphogenetic protein 15 (BMP15), knowledge of the bidirectional communication between oocytes and granulosa cells for ovarian function and fertility has been accumulated. In addition, the growth culture system of oocytes has been improved, further promoting the studies on the communication between oocytes and granulosa cells in vitro. METHODS We provide an overview of the role of granulosa cells in oocyte growth and the role of oocytes in follicular development along with our recent findings in culture experiments of bovine growing oocytes. MAIN FINDINGS Granulosa cells supply nutrients and metabolites through gap junctions to oocytes and secrete paracrine signals to regulate oocytes. Oocytes regulate granulosa cell proliferation and differentiation and induce antrum formation via GDF9 and BMP15. CONCLUSION Oocytes actively participate in various aspects of follicular development, including antrum formation via the oocyte-derived factors GDF9 and BMP15, whose synthesis is probably regulated by granulosa cells. In vitro studies will reveal the precise communication loop between oocytes and granulosa cells that facilitates the coordinated development of oocytes and granulosa cells in the follicles.
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Affiliation(s)
- Md Hasanur Alam
- Department of Animal Science, Faculty of Animal HusbandryBangladesh Agricultural UniversityMymensinghBangladesh
- Graduate School of Agricultural ScienceKobe UniversityKobeJapan
| | - Takashi Miyano
- Graduate School of Agricultural ScienceKobe UniversityKobeJapan
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Kato Y, Iwamori T, Ninomiya Y, Kohda T, Miyashita J, Sato M, Saga Y. ELAVL2-directed RNA regulatory network drives the formation of quiescent primordial follicles. EMBO Rep 2019; 20:e48251. [PMID: 31657143 DOI: 10.15252/embr.201948251] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 09/28/2019] [Accepted: 10/04/2019] [Indexed: 12/14/2022] Open
Abstract
Formation of primordial follicles is a fundamental, early process in mammalian oogenesis. However, little is known about the underlying mechanisms. We herein report that the RNA-binding proteins ELAVL2 and DDX6 are indispensable for the formation of quiescent primordial follicles in mouse ovaries. We show that Elavl2 knockout females are infertile due to defective primordial follicle formation. ELAVL2 associates with mRNAs encoding components of P-bodies (cytoplasmic RNP granules involved in the decay and storage of RNA) and directs the assembly of P-body-like granules by promoting the translation of DDX6 in oocytes prior to the formation of primordial follicles. Deletion of Ddx6 disturbs the assembly of P-body-like granules and severely impairs the formation of primordial follicles, indicating the potential importance of P-body-like granules in the formation of primordial follicles. Furthermore, Ddx6-deficient oocytes are abnormally enlarged due to misregulated PI3K-AKT signaling. Our data reveal that an ELAVL2-directed post-transcriptional network is essential for the formation of quiescent primordial follicles.
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Affiliation(s)
- Yuzuru Kato
- Division of Mammalian Development, Genetic Strains Research Center, National Institute of Genetics, Mishima, Shizuoka, Japan.,Department of Genetics, SOKENDAI, Mishima, Shizuoka, Japan
| | - Tokuko Iwamori
- Department of Biomedicine, Research Center for Human Disease Modeling, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Youichirou Ninomiya
- Division of Mammalian Development, Genetic Strains Research Center, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Takashi Kohda
- Faculty of Life and Environmental Sciences, University of Yamanashi, Kofu, Yamanashi, Japan
| | - Jyunko Miyashita
- Division of Mammalian Development, Genetic Strains Research Center, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Mikiko Sato
- Division of Mammalian Development, Genetic Strains Research Center, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Yumiko Saga
- Division of Mammalian Development, Genetic Strains Research Center, National Institute of Genetics, Mishima, Shizuoka, Japan.,Department of Genetics, SOKENDAI, Mishima, Shizuoka, Japan
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Rossitto M, Ollivier M, Déjardin S, Pruvost A, Brun C, Marchive C, Nguyen AL, Ghettas A, Keime C, de Massy B, Poulat F, Philibert P, Boizet-Bonhoure B. In utero exposure to acetaminophen and ibuprofen leads to intergenerational accelerated reproductive aging in female mice. Commun Biol 2019; 2:310. [PMID: 31428698 PMCID: PMC6692356 DOI: 10.1038/s42003-019-0552-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 07/16/2019] [Indexed: 02/06/2023] Open
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) and analgesic drugs, such as acetaminophen (APAP), are frequently taken during pregnancy, even in combination. However, they can favour genital malformations in newborn boys and reproductive disorders in adults. Conversely, the consequences on postnatal ovarian development and female reproductive health after in utero exposure are unknown. Here, we found that in mice, in utero exposure to therapeutic doses of the APAP-ibuprofen combination during sex determination led to delayed meiosis entry and progression in female F1 embryonic germ cells. Consequently, follicular activation was reduced in postnatal ovaries through the AKT/FOXO3 pathway, leading in F2 animals to subfertility, accelerated ovarian aging with abnormal corpus luteum persistence, due to decreased apoptosis and increased AKT-mediated luteal cell survival. Our study suggests that administration of these drugs during the critical period of sex determination could lead in humans to adverse effects that might be passed to the offspring.
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Affiliation(s)
- Moïra Rossitto
- Development and Pathology of the Gonad, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
| | - Margot Ollivier
- Development and Pathology of the Gonad, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
- Service de Chirurgie et Urologie Pédiatrique, Hôpital Lapeyronie CHU Montpellier, Centre de Référence Maladies Rares Développement Génital, Montpellier, France
| | - Stéphanie Déjardin
- Development and Pathology of the Gonad, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
| | - Alain Pruvost
- Service de Pharmacologie et d’Immunoanalyse (SPI), plateforme SMArt-MS, CEA, INRA, Université Paris-Saclay, Gif sur Yvette, France
| | - Christine Brun
- Meiosis and Recombination, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
| | - Candice Marchive
- Development and Pathology of the Gonad, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
| | - Anvi Laetitia Nguyen
- Service de Pharmacologie et d’Immunoanalyse (SPI), plateforme SMArt-MS, CEA, INRA, Université Paris-Saclay, Gif sur Yvette, France
| | - Aurélie Ghettas
- Service de Pharmacologie et d’Immunoanalyse (SPI), plateforme SMArt-MS, CEA, INRA, Université Paris-Saclay, Gif sur Yvette, France
| | - Céline Keime
- IGBMC, Centre National de la Recherche Scientifique, Université de Strasbourg/INSERM, Illkirch, France
| | - Bernard de Massy
- Meiosis and Recombination, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
| | - Francis Poulat
- Development and Pathology of the Gonad, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
| | - Pascal Philibert
- Development and Pathology of the Gonad, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
- Département de Biochimie et Hormonologie, Hôpital Lapeyronie, CHU de Montpellier, Montpellier, France
| | - Brigitte Boizet-Bonhoure
- Development and Pathology of the Gonad, IGH, Centre National de la Recherche Scientifique, Université de Montpellier, Montpellier, France
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Clarke H. Control of Mammalian Oocyte Development by Interactions with the Maternal Follicular Environment. Results Probl Cell Differ 2019; 63:17-41. [PMID: 28779312 DOI: 10.1007/978-3-319-60855-6_2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Development of animal germ cells depends critically on continuous contact and communication with the somatic compartment of the gonad. In females, each oocyte is enclosed within a follicle, whose somatic cells supply nutrients that sustain basal metabolic activity of the oocyte and send signals that regulate its differentiation. This maternal microenvironment thus plays an indispensable role in ensuring the production of fully differentiated oocytes that can give rise to healthy embryos. The granulosa cells send signals, likely membrane-associated Kit ligand, which trigger oocytes within resting-stage primordial follicles to initiate growth. During growth, the granulosa cells feed amino acids, nucleotides, and glycolytic substrates to the oocyte. These factors are necessary for the oocyte to complete its growth and are delivered via gap junctions that couple the granulosa cells to the oocyte. In a complementary manner, growing oocytes also release growth factors, notably growth-differentiation factor 9 and bone morphogenetic protein 15, which are necessary for proper differentiation of the granulosa cells and for these cells to support oocyte growth. During the late stages of oocyte growth, cyclic GMP that is synthesized by the granulosa cells and diffuses into the oocyte is required to prevent its precocious entry into meiotic maturation. Finally, at the early stages of maturation, granulosa cell signals promote the synthesis of a subset of proteins within the oocyte that enhance their ability to develop as embryos. Thus, the maternal legacy of the follicular microenvironment is witnessed by the fertilization of the ovulated oocyte and subsequent birth of healthy offspring.
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Affiliation(s)
- Hugh Clarke
- Department of Obstetrics and Gynecology, Research Institute of the McGill University Health Centre, McGill University, Room E.M0.2218, Glen Research Building, 100 Boul Decarie, Montreal, QC, Canada, H4A 3J1.
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38
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Reconstruction of the ovary microenvironment utilizing macroporous scaffold with affinity-bound growth factors. Biomaterials 2019; 205:11-22. [DOI: 10.1016/j.biomaterials.2019.03.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 03/10/2019] [Accepted: 03/11/2019] [Indexed: 12/24/2022]
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Xin X, Li Z, Zhong Y, Li Q, Wang J, Zhang H, Yuan X, Li J, Zhang Z. KISS1 Suppresses Apoptosis and Stimulates the Synthesis of E2 in Porcine Ovarian Granulosa Cells. Animals (Basel) 2019; 9:ani9020054. [PMID: 30759773 PMCID: PMC6406274 DOI: 10.3390/ani9020054] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 01/25/2019] [Accepted: 02/01/2019] [Indexed: 12/27/2022] Open
Abstract
Previous studies have strongly recommended that KISS-1 metastasis suppressor (KISS1) plays an essential gatekeeper of the initiation of reproductive maturation in mammals. However, KISS1 has been recently reported to highly express in ovarian granulosa cells (GCs). But the biological functionalities of KISS1 on cell apoptosis, cell cycle, and synthesis of estradiol-17β (E2) have not been explored in GCs. In this study, using porcine GCs as a cellular model, the overexpression plasmid of KISS1 was built to explore the biological effects of KISS1 on the PI3K signaling pathway, estrogen signaling pathway, cell apoptosis, cell cycle, and E2 secretion. We found that mRNA of KISS1 highly expressed in the ovary and significantly increased from immature to mature follicles in gilts. Overexpression of KISS1 could significantly increase the mRNA expression of PIK3CG, PIK3C1, and PDK1, and significantly decreased the mRNA levels of FOXO3, TSC2, and BAD of PI3K signaling pathway. Furthermore, results of the flow cytometry showed that overexpression of KISS1 significantly inhibited the apoptosis of GCs and decreased the percentage of GCs at G0/G1 phase of the cell cycle. Additionally, overexpression of KISS1 could increase the mRNA levels of Star, CYP17, 3B-HSD, 17B-HSD of estrogen synthesis signaling pathway, significantly increase the concentration of E2 in the supernatant of the cultured GCs, and up-regulate the mRNA expression levels of ESR1 and ESR2. These results suggested that KISS1 might suppress cell apoptosis through activating the PI3K signaling pathway and stimulate synthesis of E2 via boosting the estrogen synthesis signaling pathway. This study would be of great interests for exploring the biological functionalities of KISS1 in the folliculogenesis and sex steroid production of the ovaries in mammals.
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Affiliation(s)
- Xiaoping Xin
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - Zhonghui Li
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - Yuyi Zhong
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - Qingqing Li
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - Jiaying Wang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - Hao Zhang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - Xiaolong Yuan
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - Jiaqi Li
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - Zhe Zhang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Centre for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China.
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Gaytan F, Morales C, Roa J, Tena-Sempere M. Changes in keratin 8/18 expression in human granulosa cell lineage are associated to cell death/survival events: potential implications for the maintenance of the ovarian reserve. Hum Reprod 2019; 33:680-689. [PMID: 29401296 DOI: 10.1093/humrep/dey010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 01/17/2018] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Is keratin 8/18 (K8/K18) expression linked to cell death/survival events in the human granulosa cell lineage? SUMMARY ANSWER A close association exists between changes in K8/K18 expression and cell death/survival events along the human granulosa cell lineage lifespan. WHAT IS KNOWN ALREADY In addition to their structural and mechanical functions, K8/K18 play essential roles regulating cell death, survival and differentiation in several non-gonadal epithelial tissues. Transfection of the granulosa-like tumor KGN cells with siRNA to interfere KRT8 and KRT18 expression increases FAS-mediated apoptosis, while an inverse association between K8/K18 expression and cell death has been found in the bovine antral follicles and corpus luteum. Yet, only fragmentary and inconclusive information exists regarding K8/K18 expression in the human ovary. STUDY DESIGN, SIZE, DURATION Expression of K8/K18 was assessed by immunohistochemistry at different stages of the granulosa cell lineage, from flattened granulosa cells in primordial follicles to fully luteinized granulosa-lutein cells in the corpus luteum (including corpus luteum of pregnancy). PARTICIPANTS/MATERIALS, SETTING, METHODS Immunohistochemical detection of K8/K18 was conducted in 40 archival ovarian samples from women aged 17-39 years. K8/K18 expression was analyzed at the different stages of follicle development and corpus luteum lifespan. The proportions of primordial follicles showing all K8/K18-positive, all K8/K18 negative, or a mixture of K8/K18 negative and positive granulosa cells were quantified in 18 ovaries, divided into three age groups: ≤ 25 years (N = 6), 26-30 (N = 6) and 31-36 (N = 6) years. A total number of 1793 primordial, 750 transitional and 140 primary follicles were scored. MAIN RESULTS AND THE ROLE OF CHANCE A close association was found between changes in K8/K18 expression and cell death/cell survival events in the human granulosa cell lineage. Large secondary and early antral follicles (most of them undergoing atresia) and regressing corpora lutea displayed low/absent K8/K18 expression. Conversely, early growing and some large antral follicles, functional menstrual corpora lutea, as well as life-extended corpus luteum of pregnancy, in which cell death was scarce, showed high K8/K18 expression. Three sub-populations of primordial follicles were observed with respect to the presence of K8/K18 in their flattened granulosa cells, ranging from primordial follicles showing only positive granulosa cells [P0(+)], to others with a mixture of positive and negative cells [P0(+/-)] or follicles with only negative cells [P0(-)]. Significant age-related changes were found in the proportions of the different primordial follicle types. In relation to age, a positive correlation was found for P0(+) primordial follicles (R2= 0.7883, N = 18; P < 0.001), while negative correlations were found for P0(+/-) (R2 = 0.6853, N = 18; P < 0.001) and P0(-) (R2 = 0.6725, N = 18; P < 0.001) follicles. Furthermore, an age-related shift towards greater keratin expression was found in P0(+/-) follicles (χ2 = 19.07, P < 0.05). LARGE SCALE DATA N/A. LIMITATIONS REASONS FOR CAUTION This is a descriptive study. Hence, a cause-and-effect relationship between K8/K18 expression and cell death/survival cannot be directly established. WIDER IMPLICATIONS OF THE FINDINGS This study describes, for the first time, the existence of sub-populations of primordial follicles on the basis of K8/K18 expression in granulosa cells, and that their proportions change with age. While a progressive increase in K8/K18 expression cannot be ruled out, our data are consistent with the hypothesis that primordial follicles expressing low levels of K8/K18 are preferentially ablated by follicle attrition, while primordial follicles showing high K8/K18 levels are those predominantly recruited into the growing pool. This suggests that K8/K18 expression could constitute a novel factor regulating primordial follicle death/survival, and raises the possibility that alterations of K8/K18 expression could be involved in the accelerated depletion of the ovarian reserve leading to premature ovarian insufficiency. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by Grants BFU2011-025021 and BFU2014-57581-P (Ministerio de Economía y Competitividad, Spain; co-funded with EU funds from FEDER Program); project PIE14-00005 (Flexi-Met, Instituto de Salud Carlos III, Ministerio de Sanidad, Spain); Projects P08-CVI-03788 and P12-FQM-01943 (Junta de Andalucía, Spain); and EU research contract DEER FP7-ENV-2007-1. CIBER Fisiopatología de la Obesidad y Nutrición is an initiative of Instituto de Salud Carlos III. The authors have nothing to disclose in relation to the contents of this study.
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Affiliation(s)
- F Gaytan
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Avda. Menendez Pidal s/n, 14004 Cordoba, Spain.,Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menendez Pidal s/n, 14004 Cordoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Avda. Menendez Pidal s/n, 14004 Cordoba, Spain
| | - C Morales
- Department of Pathology, University of Cordoba, Avda. Menendez Pidal s/n, 14004 Cordoba, Spain
| | - J Roa
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Avda. Menendez Pidal s/n, 14004 Cordoba, Spain.,Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menendez Pidal s/n, 14004 Cordoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Avda. Menendez Pidal s/n, 14004 Cordoba, Spain
| | - M Tena-Sempere
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Avda. Menendez Pidal s/n, 14004 Cordoba, Spain.,Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menendez Pidal s/n, 14004 Cordoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Avda. Menendez Pidal s/n, 14004 Cordoba, Spain.,FiDiPro Program, Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FIN-20520 Turku, Finland
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Eichenlaub-Ritter U. Weibliche Keimzellentwicklung. GYNAKOLOGISCHE ENDOKRINOLOGIE 2018. [DOI: 10.1007/s10304-018-0210-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Peluso JJ, Liu X, Uliasz T, Pru CA, Kelp NC, Pru JK. PGRMC1/2 promotes luteal vascularization and maintains the primordial follicles of mice. Reproduction 2018; 156:365-373. [PMID: 30306772 PMCID: PMC6348134 DOI: 10.1530/rep-18-0155] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/20/2018] [Accepted: 07/27/2018] [Indexed: 01/05/2023]
Abstract
To determine whether conditional depletion of progesterone receptor membrane component (PGRMC) 1 and PGRMC2 affected ovarian follicle development, follicle distribution was assessed in ovaries of young (≈3-month-old) and middle-aged (≈6-month-old) control (Pgrmc1/2fl/fl) and double conditional PGRMC1/2-knockout (Pgrmc1/2d/d) mice. This study revealed that the distribution of primary, preantral and antral follicles was not altered in Pgrmc1/2d/d mice, regardless of the age. Although the number of primordial follicles was similar at ≈3 months of age, their numbers were reduced by ≈80% in 6-month-old Pgrmc1/2d/d mice compared to age-matched Pgrmc1/2fl/fl mice. The Pgrmc1/2d/d mice were generated using Pgr-cre mice, so ablation of Pgrmc1 and Pgrmc2 in the ovary was restricted to peri-ovulatory follicles and subsequent corpora lutea (CL). In addition, the vascularization of CL was attenuated in Pgrmc1/2d/d mice, although mRNA levels of vascular endothelial growth factor A (Vegfa) were elevated. Moreover, depletion of Pgrmc1 and Pgrmc2 altered the gene expression profile in the non-luteal component of the ovary such that Vegfa expression, a stimulator of primordial follicle growth, was elevated; Kit Ligand expression, another stimulator of primordial follicle growth, was suppressed and anti-Mullerian hormone, an inhibitor of primordial follicle growth, was enhanced compared to Pgrmc1/2fl/fl mice. These data reveal that luteal cell depletion of Pgrmc1 and 2 alters the expression of growth factors within the non-luteal component of the ovary, which could account for the premature demise of the adult population of primordial follicles. In summary, the survival of adult primordial follicles is dependent in part on progesterone receptor membrane component 1 and 2.
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Affiliation(s)
- John J. Peluso
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030
- Department of Obstetrics and Gynecology, University of Connecticut Health Center, Farmington, CT 06030
| | - Xiufang Liu
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030
| | - Tracy Uliasz
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030
| | - Cindy A. Pru
- Department of Animal Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA 99164
| | - Nicole C. Kelp
- Department of Animal Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA 99164
| | - James K. Pru
- Department of Animal Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA 99164
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Chiaratti MR, Garcia BM, Carvalho KF, Macabelli CH, Ribeiro FKDS, Zangirolamo AF, Sarapião FD, Seneda MM, Meirelles FV, Guimarães FEG, Machado TS. Oocyte mitochondria: role on fertility and disease transmission. Anim Reprod 2018; 15:231-238. [PMID: 34178146 PMCID: PMC8202466 DOI: 10.21451/1984-3143-ar2018-0069] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Oocyte mitochondria are increased in number, smaller, and rounder in appearance than mitochondria in somatic cells. Moreover, mitochondrial numbers and activity are narrowly tied with oocyte quality because of the key role of mitochondria to oocyte maturation. During oocyte maturation, mitochondria display great mobility and cluster at specific sites to meet the high energy demand. Conversely, oocyte mitochondria are not required during early oogenesis as coupling with granulosa cells is sufficient to support gamete's needs. In part, this might be explained by the importance of protecting mitochondria from oxidative damage that result in mutations in mitochondrial DNA (mtDNA). Considering mitochondria are transmitted exclusively by the mother, oocytes with mtDNA mutations may lead to diseases in offspring. Thus, to counterbalance mutation expansion, the oocyte has developed specific mechanisms to filter out deleterious mtDNA molecules. Herein, we discuss the role of mitochondria on oocyte developmental potential and recent evidence supporting a purifying filter against deleterious mtDNA mutations in oocytes.
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Affiliation(s)
- Marcos R Chiaratti
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.,Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Bruna M Garcia
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Karen F Carvalho
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Carolina H Macabelli
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | | | | | | | | | - Flávio V Meirelles
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brazil.,Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brazil
| | | | - Thiago S Machado
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.,Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brazil
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Shah JS, Sabouni R, Cayton Vaught KC, Owen CM, Albertini DF, Segars JH. Biomechanics and mechanical signaling in the ovary: a systematic review. J Assist Reprod Genet 2018; 35:1135-1148. [PMID: 29691711 PMCID: PMC6063820 DOI: 10.1007/s10815-018-1180-y] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 04/05/2018] [Indexed: 01/19/2023] Open
Abstract
PURPOSE Mammalian oogenesis and folliculogenesis share a dynamic connection that is critical for gamete development. For maintenance of quiescence or follicular activation, follicles must respond to soluble signals (growth factors and hormones) and physical stresses, including mechanical forces and osmotic shifts. Likewise, mechanical processes are involved in cortical tension and cell polarity in oocytes. Our objective was to examine the contribution and influence of biomechanical signaling in female mammalian gametogenesis. METHODS We performed a systematic review to assess and summarize the effects of mechanical signaling and mechanotransduction in oocyte maturation and folliculogenesis and to explore possible clinical applications. The review identified 2568 publications of which 122 met the inclusion criteria. RESULTS The integration of mechanical and cell signaling pathways in gametogenesis is complex. Follicular activation or quiescence are influenced by mechanical signaling through the Hippo and Akt pathways involving the yes-associated protein (YAP), transcriptional coactivator with PDZ-binding motif (TAZ), phosphatase and tensin homolog deleted from chromosome 10 (PTEN) gene, the mammalian target of rapamycin (mTOR), and forkhead box O3 (FOXO3) gene. CONCLUSIONS There is overwhelming evidence that mechanical signaling plays a crucial role in development of the ovary, follicle, and oocyte throughout gametogenesis. Emerging data suggest the complexities of mechanotransduction and the biomechanics of oocytes and follicles are integral to understanding of primary ovarian insufficiency, ovarian aging, polycystic ovary syndrome, and applications of fertility preservation.
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Affiliation(s)
- Jaimin S Shah
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Texas at Houston Health Science Center, Houston, TX, USA
| | - Reem Sabouni
- Jones Institute for Reproductive Medicine, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Kamaria C Cayton Vaught
- Howard W. and Georgeanna Seegar Jones Division of Reproductive Sciences and Women's Health Research, Baltimore, MD, USA
| | - Carter M Owen
- Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | | | - James H Segars
- Howard W. and Georgeanna Seegar Jones Division of Reproductive Sciences and Women's Health Research, Baltimore, MD, USA.
- Gynecology and Obstetrics, 720 Rutland Avenue/Ross 624, Baltimore, MD, 21205, USA.
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Kim SY, Kurita T. New Insights into the Role of Phosphoinositide 3-Kinase Activity in the Physiology of Immature Oocytes: Lessons from Recent Mouse Model Studies. EUROPEAN MEDICAL JOURNAL 2018. [DOI: 10.33590/emj/10310672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The immature oocytes within primordial follicles are arrested at Prophase I of meiosis and remain dormant until awakened by an increase in intracellular levels of phosphatidylinositol (3,4,5)-trisphosphate (PIP3). Oocyte PIP3 level is determined by the balance between the activity of phosphoinositide 3-kinase (PI3K) and phosphatase and tensin homologue (PTEN). When this balance favours PI3K, PIP3 levels elevate and trigger the cascade of PI3K/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway, leading to activation of primordial follicles. This short review aims to provide new insights into the physiological functions of PI3K and PTEN in immature oocytes by summarising recent findings from murine model studies, including oocyte-specific transgenic mice with constitutively-active mutant PI3K.
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Affiliation(s)
- So-Youn Kim
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Takeshi Kurita
- Department of Cancer Biology and Genetics, The Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
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Kim SY, Kurita T. New Insights into the Role of Phosphoinositide 3-Kinase Activity in the Physiology of Immature Oocytes: Lessons from Recent Mouse Model Studies. EUROPEAN MEDICAL JOURNAL. REPRODUCTIVE HEALTH 2018; 3:119-125. [PMID: 30245862 PMCID: PMC6147255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The immature oocytes within primordial follicles are arrested at Prophase I of meiosis and remain dormant until awakened by an increase in intracellular levels of phosphatidylinositol (3,4,5)-trisphosphate (PIP3). Oocyte PIP3 level is determined by the balance between the activity of phosphoinositide 3-kinase (PI3K) and phosphatase and tensin homologue (PTEN). When this balance favours PI3K, PIP3 levels elevate and trigger the cascade of PI3K/protein kinase B (AKT)/the mammalian target of rapamycin (mTOR) pathway, leading to activation of primordial follicles. This short review aims to provide new insights into the physiological functions of PI3K and PTEN in immature oocytes by summarising recent findings from murine model studies, including oocyte-specific transgenic mice with constitutively-active mutant PI3K.
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Affiliation(s)
- So-Youn Kim
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Takeshi Kurita
- Department of Cancer Biology and Genetics, The Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
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Chiaratti MR, Garcia BM, Carvalho KF, Machado TS, Ribeiro FKDS, Macabelli CH. The role of mitochondria in the female germline: Implications to fertility and inheritance of mitochondrial diseases. Cell Biol Int 2018; 42:711-724. [PMID: 29418047 DOI: 10.1002/cbin.10947] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 02/03/2018] [Indexed: 12/21/2022]
Abstract
Mitochondria play a fundamental role during development of the female germline. They are fragmented, round, and small. Despite these characteristics suggesting that they are inactive, there is accumulating evidence that mitochondrial dysfunctions are a major cause of infertility and generation of aneuploidies in humans. In addition, mitochondria and their own genomes (mitochondrial DNA-mtDNA) may become damaged with time, which might be one reason why aging leads to infertility. As a result, mitochondria have been proposed as an important target for evaluating oocyte and embryo quality, and developing treatments for female infertility. On the other hand, mutations in mtDNA may cause mitochondrial dysfunctions, leading to severe diseases that affect 1 in 4,300 people. Moreover, very low levels of mutated mtDNA seem to be present in every person worldwide. These may increase with time and associate with late-onset degenerative diseases such as Parkinson disease, Alzheimer disease, and common cancers. Mutations in mtDNA are transmitted down the maternal lineage, following a poorly understood pattern of inheritance. Recent findings have indicated existence in the female germline of a purifying filter against deleterious mtDNA variants. Although the underlying mechanism of this filter is largely unknown, it has been suggested to rely on autophagic degradation of dysfunctional mitochondria or selective replication/transmission of non-deleterious variants. Thus, understanding the mechanisms regulating mitochondrial inheritance is important both to improve diagnosis and develop therapeutic tools for preventing transmission of mtDNA-encoded diseases.
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Affiliation(s)
- Marcos Roberto Chiaratti
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, 13565-905, Brazil.,Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, 05508-270, Brazil
| | - Bruna Martins Garcia
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, 13565-905, Brazil
| | - Karen Freire Carvalho
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, 13565-905, Brazil
| | - Thiago Simões Machado
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, 13565-905, Brazil.,Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, 05508-270, Brazil
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Clarke HJ. Regulation of germ cell development by intercellular signaling in the mammalian ovarian follicle. WILEY INTERDISCIPLINARY REVIEWS. DEVELOPMENTAL BIOLOGY 2018; 7:10.1002/wdev.294. [PMID: 28892263 PMCID: PMC5746469 DOI: 10.1002/wdev.294] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/21/2017] [Accepted: 08/02/2017] [Indexed: 12/21/2022]
Abstract
Prior to ovulation, the mammalian oocyte undergoes a process of differentiation within the ovarian follicle that confers on it the ability to give rise to an embryo. Differentiation comprises two phases-growth, during which the oocyte increases more than 100-fold in volume as it accumulates macromolecules and organelles that will sustain early embryogenesis; and meiotic maturation, during which the oocyte executes the first meiotic division and prepares for the second division. Entry of an oocyte into the growth phase appears to be triggered when the adjacent granulosa cells produce specific growth factors. As the oocyte grows, it elaborates a thick extracellular coat termed the zona pellucida. Nonetheless, cytoplasmic extensions of the adjacent granulosa cells, termed transzonal projections (TZPs), enable them to maintain contact-dependent communication with the oocyte. Through gap junctions located where the TZP tips meet the oocyte membrane, they provide the oocyte with products that sustain its metabolic activity and signals that regulate its differentiation. Conversely, the oocyte secretes diffusible growth factors that regulate proliferation and differentiation of the granulosa cells. Gap junction-permeable products of the granulosa cells prevent precocious initiation of meiotic maturation, and the gap junctions also enable oocyte maturation to begin in response to hormonal signals received by the granulosa cells. Development of the oocyte or the somatic compartment may also be regulated by extracellular vesicles newly identified in follicular fluid and at TZP tips, which could mediate intercellular transfer of macromolecules. Oocyte differentiation thus depends on continuous signaling interactions with the somatic cells of the follicle. WIREs Dev Biol 2018, 7:e294. doi: 10.1002/wdev.294 This article is categorized under: Gene Expression and Transcriptional Hierarchies > Cellular Differentiation Signaling Pathways > Cell Fate Signaling Early Embryonic Development > Gametogenesis.
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Affiliation(s)
- Hugh J Clarke
- Department of Obstetrics and Gynecology, Research Institute of the McGill University Health Centre, McGill University, Montreal, Canada
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Kristensen SG, Pors SE, Andersen CY. Improving oocyte quality by transfer of autologous mitochondria from fully grown oocytes. Hum Reprod 2017; 32:725-732. [PMID: 28333265 DOI: 10.1093/humrep/dex043] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 02/17/2017] [Indexed: 01/12/2023] Open
Abstract
Older women are often the most challenging group of patients in fertility clinics due to a decline in both number and overall quality of oocytes. The quality of oocytes has been linked to mitochondrial dysfunction. In this mini-review, we discuss this hypothesis and suggest alternative treatment options using autologous mitochondria to potentially augment pregnancy potential in ART. Autologous transfer of mitochondria from the patient's own germline cells has attracted much attention as a possible new treatment to revitalize deficient oocytes. IVF births have been reported after transfer of oogonial precursor cell-derived mitochondria; however, the source and quality of the mitochondria are still unclear. In contrast, fully grown oocytes are loaded with mitochondria which have passed the genetic bottleneck and are likely to be of high quality. An increased supply of such oocytes could potentially be obtained by in vitro follicle activation of ovarian cortical biopsies or from surplus immature oocytes collected from women undergoing ART or fertility preservation of ovarian tissue. Taken together, autologous oocytes are not necessarily a limiting resource in ART as fully grown oocytes with high quality mitochondria can be obtained from natural or stimulated ovaries and potentially be used to improve both quality and quantity of oocytes available for fertility treatment.
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Affiliation(s)
- Stine Gry Kristensen
- Laboratory of Reproductive Biology, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Blegdamsvej, DK-2100 Copenhagen, Denmark
| | - Susanne Elisabeth Pors
- Laboratory of Reproductive Biology, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Blegdamsvej, DK-2100 Copenhagen, Denmark
| | - Claus Yding Andersen
- Laboratory of Reproductive Biology, Copenhagen University Hospital, Rigshospitalet, University of Copenhagen, Blegdamsvej, DK-2100 Copenhagen, Denmark
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Wang C, Zhou B, Xia G. Mechanisms controlling germline cyst breakdown and primordial follicle formation. Cell Mol Life Sci 2017; 74:2547-2566. [PMID: 28197668 PMCID: PMC11107689 DOI: 10.1007/s00018-017-2480-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/20/2017] [Accepted: 01/30/2017] [Indexed: 12/11/2022]
Abstract
In fetal females, oogonia proliferate immediately after sex determination. The progress of mitosis in oogonia proceeds so rapidly that the incompletely divided cytoplasm of the sister cells forms cysts. The oogonia will then initiate meiosis and arrest at the diplotene stage of meiosis I, becoming oocytes. Within each germline cyst, oocytes with Balbiani bodies will survive after cyst breakdown (CBD). After CBD, each oocyte is enclosed by pre-granulosa cells to form a primordial follicle (PF). Notably, the PF pool formed perinatally will be the sole lifelong oocyte source of a female. Thus, elucidating the mechanisms of CBD and PF formation is not only meaningful for solving mysteries related to ovarian development but also contributes to the preservation of reproduction. However, the mechanisms that regulate these phenomena are largely unknown. This review summarizes the progress of cellular and molecular research on these processes in mice and humans.
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Affiliation(s)
- Chao Wang
- State Key Laboratory for Agro-Biotechnology, College of Biological Science, China Agricultural University, Beijing, 100193, China
| | - Bo Zhou
- State Key Laboratory for Agro-Biotechnology, College of Biological Science, China Agricultural University, Beijing, 100193, China
| | - Guoliang Xia
- State Key Laboratory for Agro-Biotechnology, College of Biological Science, China Agricultural University, Beijing, 100193, China.
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