RT info:eu-repo/semantics/article
T1 Post-thaw quality assessment of testicular fragments as a source of spermatogonial cells for surrogate production in the flatfish Solea senegalensis
A1 Cabrita, Elsa
A1 Pacchiarini, Tiziana
A1 Fatsini, Elvira
A1 Sarasquete Reidiz, Carmen 1956-
A1 Herráez Ortega, María Paz
A2 Biologia Celular
K1 Biología
K1 Producción animal
K1 Solea senegalensis
K1 Surrogate production
K1 Cryopreservation
K1 Spermatogonia
K1 Testicular germ cells
K1 Cell viability
K1 DNA fragmentation
K1 3104.11 Reproducción
K1 2401.07 Embriología Animal
K1 2407 Biología Celular
AB [EN] Cryopreservation of germ cells would facilitate the availability of cells at any time allowing the selection of donors and maintaining quality control for further applications such as transplantation and germline recovery. In the present study, we analyzed the efficiency of four cryopreservation protocols applied either to isolated cell suspensions or to testes fragments from Senegalese sole. In testes fragments, the quality of cryopreserved germ cells was analyzed in vitro in terms of cell recovery, integrity and viability, DNA integrity (fragmentation and apoptosis), and lipid peroxidation (malondialde- hyde levels). Transplantation of cryopreserved germ cells was performed to check the capacity of cells to in vivo incorporate into the gonadal primordium of Senegalese sole early larval stages (6 days after hatching (dah), pelagic live), during metamorphosis (10 dah) and at post-metamorphic stages (16 dah and 20 dah, benthonic life). Protocols incorporating dimethyl sulfoxide (DMSO) as a cryoprotectant showed higher number of recovered spermatogonia, especially in samples cryopreserved with L-15 + DMSO (0.39 ± 0.18 × 10 6 cells). Lipid peroxidation and DNA fragmentation were also significantly lower in this treatment compared with other treatments. An important increase in oxidation (MDA levels) was detected in samples containing glycerol as a cryoprotectant, reflected also in terms of DNA damage. Transplantation of L-15 + DMSO cryopreserved germ cells into larvae during early metamorphosis (10 dah, 5.2 mm) showed higher incorporation of cells (27.30 ± 5.27%) than other larval stages (lower than 11%). Cryopreservation of germ cells using testes fragments frozen with L-15 + DMSO was demonstrated to be a useful technique to store Senegalese sole germline
PB Springer
SN 0920-1742
LK https://hdl.handle.net/10612/18101
UL https://hdl.handle.net/10612/18101
NO Cabrita, E., Pacchiarini, T., Fatsini, E., Sarasquete, C., & Herráez, M. P. (2023). Post-thaw quality assessment of testicular fragments as a source of spermatogonial cells for surrogate production in the flatfish Solea senegalensis. Fish Physiology and Biochemistry. https://doi.org/10.1007/S10695-023-01232-2
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 17-may-2024