1
|
Ju W, Zhao Y, Yu Y, Zhao S, Xiang S, Lian F. Mechanisms of mitochondrial dysfunction in ovarian aging and potential interventions. Front Endocrinol (Lausanne) 2024; 15:1361289. [PMID: 38694941 PMCID: PMC11061492 DOI: 10.3389/fendo.2024.1361289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/22/2024] [Indexed: 05/04/2024] Open
Abstract
Mitochondria plays an essential role in regulating cellular metabolic homeostasis, proliferation/differentiation, and cell death. Mitochondrial dysfunction is implicated in many age-related pathologies. Evidence supports that the dysfunction of mitochondria and the decline of mitochondrial DNA copy number negatively affect ovarian aging. However, the mechanism of ovarian aging is still unclear. Treatment methods, including antioxidant applications, mitochondrial transplantation, emerging biomaterials, and advanced technologies, are being used to improve mitochondrial function and restore oocyte quality. This article reviews key evidence and research updates on mitochondrial damage in the pathogenesis of ovarian aging, emphasizing that mitochondrial damage may accelerate and lead to cellular senescence and ovarian aging, as well as exploring potential methods for using mitochondrial mechanisms to slow down aging and improve oocyte quality.
Collapse
Affiliation(s)
- Wenhan Ju
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuewen Zhao
- CReATe Fertility Centre, Toronto, ON, Canada
| | - Yi Yu
- Department of Reproduction and Genetics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shuai Zhao
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shan Xiang
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Fang Lian
- Department of Reproduction and Genetics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| |
Collapse
|
2
|
Morimoto Y, Gamage USK, Yamochi T, Saeki N, Morimoto N, Yamanaka M, Koike A, Miyamoto Y, Tanaka K, Fukuda A, Hashimoto S, Yanagimachi R. Mitochondrial Transfer into Human Oocytes Improved Embryo Quality and Clinical Outcomes in Recurrent Pregnancy Failure Cases. Int J Mol Sci 2023; 24:ijms24032738. [PMID: 36769061 PMCID: PMC9917531 DOI: 10.3390/ijms24032738] [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: 12/10/2022] [Revised: 01/20/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
One of the most critical issues to be solved in reproductive medicine is the treatment of patients with multiple failures of assisted reproductive treatment caused by low-quality embryos. This study investigated whether mitochondrial transfer to human oocytes improves embryo quality and provides subsequent acceptable clinical results and normality to children born due to the use of this technology. We transferred autologous mitochondria extracted from oogonia stem cells to mature oocytes with sperm at the time of intracytoplasmic sperm injection in 52 patients with recurrent failures (average 5.3 times). We assessed embryo quality using the following three methods: good-quality embryo rates, transferable embryo rates, and a novel embryo-scoring system (embryo quality score; EQS) in 33 patients who meet the preset inclusion criteria for analysis. We also evaluated the clinical outcomes of the in vitro fertilization and development of children born using this technology and compared the mtDNA sequences of the children and their mothers. The good-quality embryo rates, transferable embryo rates, and EQS significantly increased after mitochondrial transfer and resulted in 13 babies born in normal conditions. The mtDNA sequences were almost identical to the respective maternal sequences at the 83 major sites examined. Mitochondrial transfer into human oocytes is an effective clinical option to enhance embryo quality in recurrent in vitro fertilization-failure cases.
Collapse
Affiliation(s)
- Yoshiharu Morimoto
- Department of Obstetrics and Gynecology, HORAC Grand Front Osaka Clinic, Osaka 530-0011, Japan
- Correspondence: ; Tel.: +81-90-3707-8824
| | | | - Takayuki Yamochi
- Reproductive Science Institute, Graduate School of Medicine, Osaka Metropolitan University, Osaka 545-8585, Japan
| | - Noriatsu Saeki
- Department of Obstetrics and Gynecology, Nippon Life Hospital, Osaka 550-0006, Japan
| | - Naoharu Morimoto
- Department of Obstetrics and Gynecology, IVF Namba Clinic, Osaka 550-0015, Japan
| | - Masaya Yamanaka
- Department of Research, IVF Namba Clinic, Osaka 550-0015, Japan
| | - Akiko Koike
- Department of Reproductive Technology, HORAC Grand Front Osaka Clinic, Osaka 530-0011, Japan
| | - Yuki Miyamoto
- Department of Reproductive Technology, HORAC Grand Front Osaka Clinic, Osaka 530-0011, Japan
| | - Kumiko Tanaka
- Department of Integrated Medicine, HORAC Grand Front Osaka Clinic, Osaka 530-0011, Japan
| | - Aisaku Fukuda
- Department of Obstetrics and Gynecology, IVF Osaka Clinic, Osaka 577-0012, Japan
| | - Shu Hashimoto
- Reproductive Science Institute, Graduate School of Medicine, Osaka Metropolitan University, Osaka 545-8585, Japan
| | - Ryuzo Yanagimachi
- Department of Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96822, USA
| |
Collapse
|