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Long A, Zhao S, Huang G, Li X, Cheng H, Chen Z, Hu Z, Zhu L, Zhao D, Hu X, Wang J. The role of the indoleamine 2,3-dioxygenase gene in preventing ovarian transplant rejection in rats†. Biol Reprod 2024; 111:186-196. [PMID: 38452209 DOI: 10.1093/biolre/ioae036] [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: 03/29/2023] [Revised: 09/07/2023] [Accepted: 03/01/2024] [Indexed: 03/09/2024] Open
Abstract
Indoleamine 2,3-dioxygenase (IDO) plays important roles in maternal immune tolerance. Female Sprague Dawley rats (9-11 weeks old) were randomly divided into an autoplastic transplantation group (n = 75) and an allograft transplantation group (n = 300) was further divided into subgroups of ovarian transplantation, allograft ovarian transplantation, allograft ovarian transplantation with cyclosporine A treatment, allograft ovarian transplantation and transfection with IDO-expressing lentiviruses, and allograft ovarian transplantation and transfection with control lentiviruses. IDO was successfully transfected into the transplanted ovarian tissue. The survival rate, success rate of ovarian transplantation, period until estrous cycle restoration, and estrogen levels of rats that received IDO-expressing lentiviruses were significantly different from those of rats that underwent allograft transplantation and with control transfection (all P < 0.05), but not significantly different from those rats that received autoplastic transplantation (all P > 0.05). The number of ovarian follicles in the transplanted ovarian tissue of rats that received IDO-expressing lentiviruses was also significantly higher. The expression level of IDO protein detected by immunohistochemistry and western blotting was especially high in ovaries that had received IDO-containing lentiviruses. Naturally pregnant rats were found in each group postoperatively. These results indicated that IDO-expressing lentiviruses were successfully transfected into transplanted ovarian tissues of rats and that IDO was stably expressed within a certain time. These findings suggest that the expression level of IDO protein is associated with an enhanced success rate of ovarian tissue transplantation and a short restoration period of endocrine function.
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Affiliation(s)
- Aizhuan Long
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Shuyun Zhao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Guanyou Huang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Xiaoying Li
- Department of Ophthalmology, Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai 519000, Guangdong Province, China
| | - Hui Cheng
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Zengchunxiao Chen
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Zhu Hu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Leilei Zhu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Danqing Zhao
- Department of Obstetrics, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Xiaoyan Hu
- Emergency obstetrics and gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
| | - Jun Wang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, People's Republic of China
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Marco A, Gargallo M, Ciriza J, Shikanov A, Baquedano L, García Pérez-Llantada J, Malo C. Current Fertility Preservation Steps in Young Women Suffering from Cancer and Future Perspectives. Int J Mol Sci 2024; 25:4360. [PMID: 38673945 PMCID: PMC11050570 DOI: 10.3390/ijms25084360] [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: 03/07/2024] [Revised: 04/05/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Childhood cancer incidence, especially in high-income countries, has led to a focus on preserving fertility in this vulnerable population. The common treatments, such as radiation and certain chemotherapeutic agents, though effective, pose a risk to fertility. For adult women, established techniques like embryo and egg freezing are standard, requiring ovarian stimulation. However, for prepubescent girls, ovarian tissue freezing has become the primary option, eliminating the need for hormonal preparation. This review describes the beginning, evolution, and current situation of the fertility preservation options for this young population. A total of 75 studies were included, covering the steps in the current fertility preservation protocols: (i) ovarian tissue extraction, (ii) the freezing method, and (iii) thawing and transplantation. Cryopreservation and the subsequent transplantation of ovarian tissue have resulted in successful fertility restoration, with over 200 recorded live births, including cases involving ovarian tissue cryopreserved from prepubescent girls. Despite promising results, challenges persist, such as follicular loss during transplantation, which is attributed to ischemic and oxidative damage. Optimizing ovarian tissue-freezing processes and exploring alternatives to transplantation, like in vitro systems for follicles to establish maturation, are essential to mitigating associated risks. Further research is required in fertility preservation techniques to enhance clinical outcomes in the future. Ovarian tissue cryopreservation appears to be a method with specific benefits, indications, and risks, which can be an important tool in terms of preserving fertility in younger women.
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Affiliation(s)
- Alicia Marco
- Faculty of Medicine, University of Zaragoza, 50018 Zaragoza, Spain;
| | - Marta Gargallo
- Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain; (M.G.); (J.C.)
| | - Jesús Ciriza
- Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain; (M.G.); (J.C.)
- Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain
| | - Ariella Shikanov
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109, USA
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Laura Baquedano
- Department of Gynecology, University Hospital Miguel Servat, 50009 Zaragoza, Spain;
| | | | - Clara Malo
- Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain; (M.G.); (J.C.)
- Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain
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Abstract
Constant progress in the diagnosis and treatment of cancer disease has increased the number and prognosis of cancer survivors. However, the toxic effects of chemotherapy and radiotherapy on ovarian function have resulted in premature ovarian failure. Patients are, therefore, still expecting methods to be developed to preserve their fertility successfully. Several potential options are available to preserve fertility in patients who face premature ovarian failure, including immature or mature oocyte and embryo cryopreservation. However, for children or prepubertal women needing immediate chemotherapy, cryopreservation of ovarian tissue is the only alternative. The ultimate aim of this strategy is to implant ovarian tissue into the pelvic cavity (orthotopic site) or in a heterotopic site once oncological treatment is completed and the patient is disease free. Transplantation of ovarian tissue with sufficiently large numbers of follicles could potentially restore endocrine function and allow multiple cycles for conception. However, the success of ovarian tissue transplantation still has multiple challenges, such as the low number of follicles in the graft that may affect their longevity as well as the survival of the tissue during ex vivo processing and subsequent transplantation. Therefore, this review aims to summarize the achievements of ovary grafting and the potential techniques that have been developed to improve ovarian graft survival.
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Sun X, Ito J, Potter SJ, Dey SK, DeFalco T. Extragonadal oocytes residing in the mouse ovarian hilum contribute to fertility. Biol Reprod 2017; 96:1060-1070. [PMID: 28339687 PMCID: PMC6279060 DOI: 10.1095/biolreprod.116.145631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 01/13/2017] [Accepted: 02/13/2017] [Indexed: 12/17/2022] Open
Abstract
The observation of pups born from recipient and donor mice after ovariectomy followed by ovarian transplant poses the interesting possibility of an extraovarian source of oocytes. However, whether mammalian adult oocytes reside in extragonadal tissues remains elusive. Using transgenic fluorescent reporter mice and transplantation surgeries, we demonstrate the presence of both donor- and recipient-derived corpora lutea and recovery of both donor- and recipient-derived offspring from ovariectomized mice after transplantation of donor ovaries. A potential region for extraovarian oocytes is the hilum, a ligament-like structure between the ovary and the reproductive tract. Immunofluorescent confocal microscopy of mouse ovaries and reproductive tracts revealed that a population of primordial follicles resides outside the ovary within the hilum. Ovariectomy-only controls confirmed that oocytes remain in the recipient hilum after surgery. These results provide evidence that the hilum is a reserve source of follicles, which likely return to the ovary for maturation and ovulation. By identifying a new follicle reservoir, our study addresses a long-standing question in reproductive biology and contributes to new conceptual knowledge about ovarian function and fertility.
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Affiliation(s)
- Xiaofei Sun
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Junya Ito
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sarah J. Potter
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sudhansu K. Dey
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Tony DeFalco
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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Kim S. Revisiting the role of heterotopic ovarian transplantation: futility or fertility. Reprod Biomed Online 2014; 28:141-5. [DOI: 10.1016/j.rbmo.2013.09.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 07/17/2013] [Accepted: 09/19/2013] [Indexed: 10/26/2022]
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