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Qiqi L, Junlin H, Xuemei C, Yi H, Fangfang L, Yanqing G, Yan Z, Lamptey J, Zhuxiu C, Fangfei L, Yingxiong W, Xinyi M. Fetal exposure of Aristolochic Acid I undermines ovarian reserve by disturbing primordial folliculogenesis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 236:113480. [PMID: 35397442 DOI: 10.1016/j.ecoenv.2022.113480] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/27/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
The primordial follicle pool established in early life determines the ovarian reserve in the female reproductive lifespan. Premature exhaustion of primordial follicles contributes to primary ovarian insufficiency (POI), that is dependent by the initial size of the primordial follicle pool and by the rate of its activation and depletion. AAI, a powerful nephrotoxin with carcinogenic potential, is present in the Aristolochiaceae species, which can release AAI into soil as a persistent pollutant. In order to assess the potential risk of Aristolochic Acid I (AAI) exposure on mammalian oogenesis, we uncovered its adverse effect on primordial folliculogenesis in the neonatal mouse ovary and its effect on female fertility in adulthood. Pregnant mice were orally administrated with doses of AAI without hepatic or renal toxicity during late-gestation. Ovaries from offspring of administered female displayed gross aberrations during primordial folliculogenesis. Also, unenclosed oocytes in germ-cell cysts showed increased DNA damage. Furthermore, several key factors, including NANOS3, SOX9, KLF4, that govern early gonad's differentiation were abnormally expressed in the exposed ovary, while the follicle formation was partially restored by knockdown of Nanos3 or sox9. In adulthood, these aberrations evolved into a significant reduction in offspring number and impaired ovarian reserve. Together, our results show that AAI influences primordial folliculogenesis and, importantly, affected female fertility. This study shows that administration of drugs herbs or consumption of vegetables that contain AAs during pregnancy may adversely influence the fertility of offspring.
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Affiliation(s)
- Liu Qiqi
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - He Junlin
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Chen Xuemei
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Hong Yi
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Li Fangfang
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Geng Yanqing
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Zhang Yan
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Jones Lamptey
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Chen Zhuxiu
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China; Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Liu Fangfei
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Wang Yingxiong
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Mu Xinyi
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China; Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China.
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