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Medrano JV, Acimovic I, Navarro-Gomezlechon A, Noguera I, Pellicer A, Andrés MM, Novella-Maestre E. Timing of spermatogonial stem cell transplantation affects the spermatogenic recovery outcome in mice. In Vitro Cell Dev Biol Anim 2021; 57:21-29. [PMID: 33420579 DOI: 10.1007/s11626-020-00531-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/12/2020] [Indexed: 11/29/2022]
Abstract
Spermatogonial stem cell transplantation (SSCT) is a strategy that has demonstrated to be feasible to restore spermatogenesis in animal models when it is performed shortly after the gonadotoxic onset to destroy their endogenous germ cells. However, in the case of boys subjected to fertility preservation, future transplantations will be performed with a delay of many years. In order to study how timing of SSCT affects donor-derived spermatogenic recovery in mice, we compared the percentage of spermatogenic tubule cross-sections within testes of 59 C57BL/6NCrl mice distributed in 6 groups: group 1, untreated mice controls (n = 9); group 2, mice that received a single dose of busulfan 40 mg/kg (n = 10); group 3, mice that received two additional doses of busulfan 10 mg/kg every 5 weeks (n = 10); group 4 (SSCT-A), mice subjected to a standard SSCT performed 5 weeks after a single injection of busulfan 40 mg/kg (n = 10); group 5 (SSCT-B), mice subjected to a delayed SSCT performed 15 weeks after a single injection of busulfan 40 mg/kg (n = 10); and group 6 (SSCT-C), mice subjected to a delayed SSCT with two additional doses of busulfan 10 mg/kg every 5 weeks (n = 10). Spermatogenic recovery in standard SSCT-A and SSCT-C groups ranged between 22.29 and 22.65%, compared with a lower recovery rate of 11.54% showed in the SSCT-B group. However, donor contribution resulted higher in standard SSCT-A, representing a 69.71% of cross-sections, compared with the rest of conditions ranging from 34.69 to 35.42%. Overall, we concluded that a delay in the SSCT from the gonadotoxic onset decreases the efficiency of donor-derived spermatogenic recovery in mice.
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Affiliation(s)
- J V Medrano
- Unidad de Medicina Reproductiva, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Av. Fernando Abril Martorell, 106. Torre A, Lab. 6.22, 46026, Valencia, Spain.
| | - I Acimovic
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
| | - A Navarro-Gomezlechon
- Unidad de Medicina Reproductiva, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Av. Fernando Abril Martorell, 106. Torre A, Lab. 6.22, 46026, Valencia, Spain
| | - I Noguera
- Animal Facility, Faculty of Pharmacy, Valencia University, 46015, Valencia, Spain
| | - A Pellicer
- Unidad de Medicina Reproductiva, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Av. Fernando Abril Martorell, 106. Torre A, Lab. 6.22, 46026, Valencia, Spain
- Fundación IVI, 46026, Valencia, Spain
| | - M M Andrés
- Hospital Universitario y Politécnico La Fe, 46026, Valencia, Spain
| | - E Novella-Maestre
- Unidad de Medicina Reproductiva, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Av. Fernando Abril Martorell, 106. Torre A, Lab. 6.22, 46026, Valencia, Spain
- Hospital Universitario y Politécnico La Fe, 46026, Valencia, Spain
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Bautista F, Moreno L, Fernández-Navarro JM, Senent L, Andrés MM, Castel V, Verdeguer A. Evaluation of chimerism by quantitative PCR analysis of DNA polymorphism after allogeneic hematopoietic stem cell transplantation in a pediatric population with malignancies. Pediatr Transplant 2011; 15:81-7. [PMID: 21159107 DOI: 10.1111/j.1399-3046.2010.01416.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Relapse remains the major pitfall to success for Allo-HSCT in children with malignancies. Ninety-one patients undergoing Allo-HSCT were retrospectively reviewed. Chimerism status was evaluated at days +30, +60, and +100 in PB. VNTR-PCR and STR-PCR were used for this purpose. Thirty-one patients recurred (34%) and none survived. Thirty-two remain alive in CR (35%). Patients who achieved a CC at those days had a significant higher RFS and OS than patients who did not. Twelve patients showing PMC had an increased risk of recurrence (p=0.02. OR 7.7). In the univariate analysis, the probability of death was higher in patients who were not in first CR before transplant (p=0.008.OR 2.09) and in those receiving cells not from PB (p=0.002.OR 2.03). In the multivariate analysis, the absence of CC at day +100 was associated with a higher probability of relapse (p=0.004. OR 10.8) and death (p=0.016. OR 9.3). Serial chimerism PCR-based analyses of polymorphic DNA markers can predict relapse. Patients with PMC are at the highest risk of recurrence. Patients receiving an Allo-HSCT in first CR from PB who achieve a CC at day +100 have a better outcome.
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Affiliation(s)
- F Bautista
- Pediatric Oncology Unit, Hospital Universitario La Fe, Valencia, Spain
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