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Najafi A, Asadi E, Benson JD. Ovarian tissue cryopreservation and transplantation: a review on reactive oxygen species generation and antioxidant therapy. Cell Tissue Res 2023; 393:401-423. [PMID: 37328708 DOI: 10.1007/s00441-023-03794-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 05/31/2023] [Indexed: 06/18/2023]
Abstract
Cancer is the leading cause of death worldwide. Fortunately, the survival rate of cancer continues to rise, owing to advances in cancer treatments. However, these treatments are gonadotoxic and cause infertility. Ovarian tissue cryopreservation and transplantation (OTCT) is the most flexible option to preserve fertility in women and children with cancer. However, OTCT is associated with significant follicle loss and an accompanying short lifespan of the grafts. There has been a decade of research in cryopreservation-induced oxidative stress in single cells with significant successes in mitigating this major source of loss of viability. However, despite its success elsewhere and beyond a few promising experiments, little attention has been paid to this key aspect of OTCT-induced damage. As more and more clinical practices adopt OTCT for fertility preservation, it is a critical time to review oxidative stress as a cause of damage and to outline potential ameliorative interventions. Here we give an overview of the application of OTCT for female fertility preservation and existing challenges; clarify the potential contribution of oxidative stress in ovarian follicle loss; and highlight potential ability of antioxidant treatments to mitigate the OTCT-induced injuries that might be of interest to cryobiologists and reproductive clinicians.
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Affiliation(s)
- Atefeh Najafi
- Department of Biology, University of Saskatchewan, S7N 5E2, Saskatoon, SK, Canada
| | - Ebrahim Asadi
- Department of Biology, University of Saskatchewan, S7N 5E2, Saskatoon, SK, Canada
| | - James D Benson
- Department of Biology, University of Saskatchewan, S7N 5E2, Saskatoon, SK, Canada.
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Ramos L, Galbinski S, Nacul A, Jiménez MF, Frantz N, Bos-Mikich A. Detailed Morphological Analysis of Cryoinjury in Human Ovarian Tissue Following Vitrification or Slow Freezing. Reprod Sci 2021; 29:2374-2381. [PMID: 34398410 DOI: 10.1007/s43032-021-00716-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/08/2021] [Indexed: 11/28/2022]
Abstract
Cryopreservation of human ovarian tissue represents a key procedure for fertility preservation. The two most widely used cryopreservation methods for human ovarian cortex samples are slow freezing\thawing (SF\T) and vitrification\warming (V\W). The aim of the present study was to analyze the effects of SF\T and V\W using a metal chamber, on specific follicle and oocyte structures and on the stromal organization post-cryopreservation. We did histology analysis of SF\T and V\W ovarian fragments from nine healthy subjects. Overall results showed that cryopreserved tissues presented significant rates of damage in primordial and primary follicles. Altered nuclear structure of primordial follicles and cell detachment from primordial and primary follicles were the main injuries observed after V/W and SF/T. The stromal components were similarly well preserved after cryopreservation. We conclude that both cryopreservation methods may be used for fertility preservation purposes with similar outcomes in terms of follicular and stromal integrity. Detachment of follicle cells from basal membrane represents an important cryoinjury that deserves further investigation.
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Affiliation(s)
- L Ramos
- Department of Morphological Sciences, ICBS, Federal University of Rio Grande Do Sul, Rua Sarmento Leite 500, Porto Alegre, RS, 90050-170, Brazil
| | | | - A Nacul
- FÊMINA Hospital, Porto Alegre, RS, Brazil
| | - M F Jiménez
- Department of Gynecology and Obstetrics, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil
| | - N Frantz
- Nilo Frantz Research and Human Reproduction Center, Porto Alegre, RS, Brazil
| | - A Bos-Mikich
- Department of Morphological Sciences, ICBS, Federal University of Rio Grande Do Sul, Rua Sarmento Leite 500, Porto Alegre, RS, 90050-170, Brazil.
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Galbinski S, Kowalewski LS, Grigolo GB, da Silva LR, Jiménez MF, Krause M, Frantz N, Bös-Mikich A. Comparison between two cryopreservation techniques of human ovarian cortex: morphological aspects and the heat shock response (HSR). Cell Stress Chaperones 2021; 27:97-106. [PMID: 35043289 PMCID: PMC8943117 DOI: 10.1007/s12192-022-01252-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 11/03/2022] Open
Abstract
This study was tailored to compare the cryopreservation of the human ovarian cortex using closed metal container vitrification or the slow-freezing technique. Superficial ovarian cortical tissue biopsies were collected from 12 participants who underwent gynaecological videolaparoscopy. The fragmented samples were allocated to three experimental conditions: (a) fresh ovarian tissue, (b) slow-freezing, and (c) vitrification with a metal closed container. After thawing or rewarming, cellular morphological analyses were performed to determine tissue viability. The cellular response to thermal stress was measured by a putative increase in the immune quantification of the heat shock protein 70 kDa (heat shock protein 70 kDa response - HSR) after a heat challenge (2 h exposure at 42 °C). Both the total number of intact follicles and the frequency of primordial follicles were higher in fresh ovarian tissue than in the preserved samples, regardless of the technique employed. There was a trend towards an increase in the absolute number of intact follicles in the tissue preserved by vitrification. After cryopreservation, a higher HSR was obtained after slow-freezing. These results indicate that both cryopreservation techniques present advantages and may be used as alternatives to ovarian tissue cryopreservation.
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Affiliation(s)
- Sérgio Galbinski
- Unidade de Reprodução Humana, Hospital Fêmina, Porto Alegre, RS, Brazil
- Programa de Pós-graduação em Ginecologia e Obstetrícia da Universidade Federal do Rio Grande do Sull, Porto Alegre, RS, Brazil
| | - Lucas Stahlhöfer Kowalewski
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gisele Bettú Grigolo
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Larissa Ramos da Silva
- Instituto de Ciencias Basicas da Saude, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Mirela Foresti Jiménez
- Unidade de Reprodução Humana, Hospital Fêmina, Porto Alegre, RS, Brazil
- Programa de Pós-graduação em Ginecologia e Obstetrícia da Universidade Federal do Rio Grande do Sull, Porto Alegre, RS, Brazil
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Mauricio Krause
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Nilo Frantz
- Nilo Frantz Medicina Reprodutiva, Porto Alegre, RS, Brazil
| | - Adriana Bös-Mikich
- Instituto de Ciencias Basicas da Saude, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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