Macrophage‐derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environment
Abstract In mammals, ovarian function is dependent on the primordial follicle pool and the rate of primordial follicle activation determines a female's reproductive lifespan. Ovarian ageing is characterised by chronic low‐grade inflammation with accelerated depletion of primordial follicles and...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-10-01
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| Series: | Clinical and Translational Medicine |
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| Online Access: | https://doi.org/10.1002/ctm2.1071 |
| _version_ | 1797988906259447808 |
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| author | Yue Xiao Xiaoxu Peng Yue Peng Chi Zhang Wei Liu Weijie Yang Xiaowei Dou Yuying Jiang Yaxuan Wang Shuo Yang Wenpei Xiang Tinghe Wu Jing Li |
| author_facet | Yue Xiao Xiaoxu Peng Yue Peng Chi Zhang Wei Liu Weijie Yang Xiaowei Dou Yuying Jiang Yaxuan Wang Shuo Yang Wenpei Xiang Tinghe Wu Jing Li |
| author_sort | Yue Xiao |
| collection | DOAJ |
| description | Abstract In mammals, ovarian function is dependent on the primordial follicle pool and the rate of primordial follicle activation determines a female's reproductive lifespan. Ovarian ageing is characterised by chronic low‐grade inflammation with accelerated depletion of primordial follicles and deterioration of oocyte quality. Macrophages (Mφs) play critical roles in multiple aspects of ovarian functions; however, it remains unclear whether Mφs modulate the primordial follicle pool and what is their role in ovarian ageing. Here, by using super‐ or naturally ovulated mouse models, we demonstrated for the first time that ovulation‐induced local inflammation acted as the driver for selective activation of surrounding primordial follicles in each estrous cycle. This finding was related to infiltrating Mφs in ovulatory follicles and the dynamic changes of the two polarised Mφs, M1 and M2 Mφs, during the process. Further studies on newborn ovaries cocultured with different subtypes of Mφs demonstrated the stimulatory effect of M1 Mφs on primordial follicles, whereas M2 Mφs maintained follicles in a dormant state. The underlying mechanism was associated with the differential regulation of the Phosphatidylinositol 3‐kinase/Mechanistic target of rapamycin (PI3K/mTOR) signaling pathway through secreted extracellular vesicles (EVs) and the containing specific miRNAs miR‐107 (M1 Mφs) and miR‐99a‐5p (M2 Mφs). In aged mice, the intravenous injection of M2‐EVs improved ovarian function and ameliorated the inflammatory microenvironment within the ovary. Thus, based on the anti‐ageing effects of M2 Mφs in old mice, M2‐EVs may represent a new approach to improve inflammation‐related infertility in women. |
| first_indexed | 2024-04-11T08:11:35Z |
| format | Article |
| id | doaj.art-722e11ba1c6542b9aba3d8bdd6f3d1a7 |
| institution | Directory Open Access Journal |
| issn | 2001-1326 |
| language | English |
| last_indexed | 2024-04-11T08:11:35Z |
| publishDate | 2022-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Clinical and Translational Medicine |
| spelling | doaj.art-722e11ba1c6542b9aba3d8bdd6f3d1a72022-12-22T04:35:21ZengWileyClinical and Translational Medicine2001-13262022-10-011210n/an/a10.1002/ctm2.1071Macrophage‐derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environmentYue Xiao0Xiaoxu Peng1Yue Peng2Chi Zhang3Wei Liu4Weijie Yang5Xiaowei Dou6Yuying Jiang7Yaxuan Wang8Shuo Yang9Wenpei Xiang10Tinghe Wu11Jing Li12State Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaFamily Planning Research Institute/Center of Reproductive Medicine Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei ChinaState Key Laboratory of Translational Medicine and Innovative Drug Development Jiangsu Simcere Pharmaceutical Co., Ltd. Nanjing Jiangsu ChinaState Key Laboratory of Reproductive Medicine Nanjing Medical University Nanjing Jiangsu ChinaAbstract In mammals, ovarian function is dependent on the primordial follicle pool and the rate of primordial follicle activation determines a female's reproductive lifespan. Ovarian ageing is characterised by chronic low‐grade inflammation with accelerated depletion of primordial follicles and deterioration of oocyte quality. Macrophages (Mφs) play critical roles in multiple aspects of ovarian functions; however, it remains unclear whether Mφs modulate the primordial follicle pool and what is their role in ovarian ageing. Here, by using super‐ or naturally ovulated mouse models, we demonstrated for the first time that ovulation‐induced local inflammation acted as the driver for selective activation of surrounding primordial follicles in each estrous cycle. This finding was related to infiltrating Mφs in ovulatory follicles and the dynamic changes of the two polarised Mφs, M1 and M2 Mφs, during the process. Further studies on newborn ovaries cocultured with different subtypes of Mφs demonstrated the stimulatory effect of M1 Mφs on primordial follicles, whereas M2 Mφs maintained follicles in a dormant state. The underlying mechanism was associated with the differential regulation of the Phosphatidylinositol 3‐kinase/Mechanistic target of rapamycin (PI3K/mTOR) signaling pathway through secreted extracellular vesicles (EVs) and the containing specific miRNAs miR‐107 (M1 Mφs) and miR‐99a‐5p (M2 Mφs). In aged mice, the intravenous injection of M2‐EVs improved ovarian function and ameliorated the inflammatory microenvironment within the ovary. Thus, based on the anti‐ageing effects of M2 Mφs in old mice, M2‐EVs may represent a new approach to improve inflammation‐related infertility in women.https://doi.org/10.1002/ctm2.1071extracellular vesiclesmacrophageovarian ageingprimordial follicle |
| spellingShingle | Yue Xiao Xiaoxu Peng Yue Peng Chi Zhang Wei Liu Weijie Yang Xiaowei Dou Yuying Jiang Yaxuan Wang Shuo Yang Wenpei Xiang Tinghe Wu Jing Li Macrophage‐derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environment Clinical and Translational Medicine extracellular vesicles macrophage ovarian ageing primordial follicle |
| title | Macrophage‐derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environment |
| title_full | Macrophage‐derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environment |
| title_fullStr | Macrophage‐derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environment |
| title_full_unstemmed | Macrophage‐derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environment |
| title_short | Macrophage‐derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environment |
| title_sort | macrophage derived extracellular vesicles regulate follicular activation and improve ovarian function in old mice by modulating local environment |
| topic | extracellular vesicles macrophage ovarian ageing primordial follicle |
| url | https://doi.org/10.1002/ctm2.1071 |
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