Ultrastructural examination of cryodamage in Paracentrotus lividus eggs during cryopreservation

Abstract This study examinates the challenges of cryopreserving sea urchin (Paracentrotus lividus) eggs, a task hindered by factors like low membrane permeability and high sensitivity to cryoprotective agents (CPAs). While successful cryopreservation has been achieved for some marine invertebrates,...

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Main Authors: S. Campos, J. Troncoso, E. Paredes
Format: Article
Language:English
Published: Nature Portfolio 2024-04-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-57905-2
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author S. Campos
J. Troncoso
E. Paredes
author_facet S. Campos
J. Troncoso
E. Paredes
author_sort S. Campos
collection DOAJ
description Abstract This study examinates the challenges of cryopreserving sea urchin (Paracentrotus lividus) eggs, a task hindered by factors like low membrane permeability and high sensitivity to cryoprotective agents (CPAs). While successful cryopreservation has been achieved for some marine invertebrates, eggs remain problematic due to their unique characteristics. The study explores the impact of various CPAs and cryopreservation techniques on sea urchin eggs, employing scanning and transmission electron microscopy to analyze cellular damage. The findings reveal that exposure to low CPA concentrations (0.5 M) did not induce significant damage to eggs. However, high concentrations (3 M) proved highly detrimental. Every cryopreservation approach investigated in this study resulted in irreversible damage to the sea urchin eggs, rendering them nonviable for future use. The research sheds light on the importance of understanding the structural alterations induced by CPAs and cryopreservation methods. This knowledge is essential for refining cryopreservation methods, potentially paving the way for successful preservation of these challenging cells.
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spelling doaj.art-468ada13599c49bcb6a9cfdb718e21272024-04-21T11:19:44ZengNature PortfolioScientific Reports2045-23222024-04-0114111010.1038/s41598-024-57905-2Ultrastructural examination of cryodamage in Paracentrotus lividus eggs during cryopreservationS. Campos0J. Troncoso1E. Paredes2Centro de Investigación Mariña (CIM), Departamento de Ecoloxía e Bioloxía Animal, Grupo ECOCOST, Universidade de VigoCentro de Investigación Mariña (CIM), Departamento de Ecoloxía e Bioloxía Animal, Grupo ECOCOST, Universidade de VigoCentro de Investigación Mariña (CIM), Departamento de Ecoloxía e Bioloxía Animal, Grupo ECOCOST, Universidade de VigoAbstract This study examinates the challenges of cryopreserving sea urchin (Paracentrotus lividus) eggs, a task hindered by factors like low membrane permeability and high sensitivity to cryoprotective agents (CPAs). While successful cryopreservation has been achieved for some marine invertebrates, eggs remain problematic due to their unique characteristics. The study explores the impact of various CPAs and cryopreservation techniques on sea urchin eggs, employing scanning and transmission electron microscopy to analyze cellular damage. The findings reveal that exposure to low CPA concentrations (0.5 M) did not induce significant damage to eggs. However, high concentrations (3 M) proved highly detrimental. Every cryopreservation approach investigated in this study resulted in irreversible damage to the sea urchin eggs, rendering them nonviable for future use. The research sheds light on the importance of understanding the structural alterations induced by CPAs and cryopreservation methods. This knowledge is essential for refining cryopreservation methods, potentially paving the way for successful preservation of these challenging cells.https://doi.org/10.1038/s41598-024-57905-2
spellingShingle S. Campos
J. Troncoso
E. Paredes
Ultrastructural examination of cryodamage in Paracentrotus lividus eggs during cryopreservation
Scientific Reports
title Ultrastructural examination of cryodamage in Paracentrotus lividus eggs during cryopreservation
title_full Ultrastructural examination of cryodamage in Paracentrotus lividus eggs during cryopreservation
title_fullStr Ultrastructural examination of cryodamage in Paracentrotus lividus eggs during cryopreservation
title_full_unstemmed Ultrastructural examination of cryodamage in Paracentrotus lividus eggs during cryopreservation
title_short Ultrastructural examination of cryodamage in Paracentrotus lividus eggs during cryopreservation
title_sort ultrastructural examination of cryodamage in paracentrotus lividus eggs during cryopreservation
url https://doi.org/10.1038/s41598-024-57905-2
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AT eparedes ultrastructuralexaminationofcryodamageinparacentrotuslividuseggsduringcryopreservation