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Comparison of Cryopreservation Techniques For Cells of the Marine Sponge Dysidea Etheria

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BACKGROUND: Cryopreservation is a commonly used method for the long–term storage of cell lines and provides a stable source of cells for experiments, allowing researchers to study species that are not geographically nearby, and useful to progress studies on sponge cell biotechnology. OBJECTIVE: The marine sponge Dysidea etheria was chosen as our model organism to evaluate the impact and effectiveness of two commonly used cryoprotectants, dimethyl sulfoxide (DMSO) and glycerol. MATERIALS AND METHODS: By testing a range of concentrations (3–10% DMSO, 10–50% glycerol), we determined the optimal cryoprotectant for D. etheria based on its ability to preserve viable cells and optimize recovery after cryopreservation. RESULTS: Cells cryopreserved in DMSO had significantly higher viability after cryopreservation than those cryopreserved in glycerol. Cells cryopreserved in glycerol had irregular morphology as well as lower recovery of viable cells than those from DMSO treatments. CONCLUSION: Our results demonstrate that the optimal cryoprotectant for sponge cells, without a significant loss of viability, is 5–8% DMSO. This approach can be used to optimize cryopreservation methods for cells of other marine invertebrate species.
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Document Type: Research Article

Publication date: July 1, 2018

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  • CryoLetters is a bimonthly international journal for low temperature sciences, including cryobiology, cryopreservation or vitrification of cells and tissues, chemical and physical aspects of freezing and drying, and studies involving ecology of cold environments, and cold adaptation

    The journal publishes original research reports, authoritative reviews, technical developments and commissioned book reviews of studies of the effects produced by low temperatures on a wide variety of scientific and technical processes, or those involving low temperature techniques in the investigation of physical, chemical, biological and ecological problems.

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