High throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agents

Abstract Cryoprotective agent (CPA) toxicity is the most limiting factor impeding cryopreservation of critically needed tissues and organs for transplantation and medical research. This limitation is in part due to the challenge of rapidly screening compounds to identify candidate molecules that are...

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Main Authors: Nima Ahmadkhani, James D. Benson, Ali Eroglu, Adam Z. Higgins
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-85509-x
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author Nima Ahmadkhani
James D. Benson
Ali Eroglu
Adam Z. Higgins
author_facet Nima Ahmadkhani
James D. Benson
Ali Eroglu
Adam Z. Higgins
author_sort Nima Ahmadkhani
collection DOAJ
description Abstract Cryoprotective agent (CPA) toxicity is the most limiting factor impeding cryopreservation of critically needed tissues and organs for transplantation and medical research. This limitation is in part due to the challenge of rapidly screening compounds to identify candidate molecules that are highly membrane permeable and non-toxic at high concentrations. Such a combination would facilitate rapid CPA permeation throughout the sample, enabling ice-free cryopreservation with minimal toxicity. This study presents a new method for rapidly assessing the cell membrane permeability and toxicity of candidate CPAs. The new method enables ~ 100 times faster permeability measurement than previous methods, while also allowing assessment of CPA toxicity using the same 96-well plate. We tested five commonly used CPAs and 22 less common ones at both 4 °C and room temperature, with 23 of them passing the screening process based on their favorable toxicity and permeability properties. Considering its advantages such as high throughput measurement of membrane permeability along with simultaneous toxicity assessment, the presented method holds promise as an effective initial screening tool to identify new CPAs for cryopreservation.
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spelling doaj-art-71a9e9c9e83e44c6b87cb3ab040e67262025-01-19T12:21:10ZengNature PortfolioScientific Reports2045-23222025-01-0115111310.1038/s41598-025-85509-xHigh throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agentsNima Ahmadkhani0James D. Benson1Ali Eroglu2Adam Z. Higgins3School of Chemical, Biological, and Environmental Engineering, Oregon State UniversityDepartment of Biology, University of SaskatchewanDepartment of Neuroscience and Regenerative Medicine, Medical College of Georgia - Augusta UniversitySchool of Chemical, Biological, and Environmental Engineering, Oregon State UniversityAbstract Cryoprotective agent (CPA) toxicity is the most limiting factor impeding cryopreservation of critically needed tissues and organs for transplantation and medical research. This limitation is in part due to the challenge of rapidly screening compounds to identify candidate molecules that are highly membrane permeable and non-toxic at high concentrations. Such a combination would facilitate rapid CPA permeation throughout the sample, enabling ice-free cryopreservation with minimal toxicity. This study presents a new method for rapidly assessing the cell membrane permeability and toxicity of candidate CPAs. The new method enables ~ 100 times faster permeability measurement than previous methods, while also allowing assessment of CPA toxicity using the same 96-well plate. We tested five commonly used CPAs and 22 less common ones at both 4 °C and room temperature, with 23 of them passing the screening process based on their favorable toxicity and permeability properties. Considering its advantages such as high throughput measurement of membrane permeability along with simultaneous toxicity assessment, the presented method holds promise as an effective initial screening tool to identify new CPAs for cryopreservation.https://doi.org/10.1038/s41598-025-85509-xCryopreservationVitrificationFreezingCell membrane permeabilityCPACryoprotectant
spellingShingle Nima Ahmadkhani
James D. Benson
Ali Eroglu
Adam Z. Higgins
High throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agents
Scientific Reports
Cryopreservation
Vitrification
Freezing
Cell membrane permeability
CPA
Cryoprotectant
title High throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agents
title_full High throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agents
title_fullStr High throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agents
title_full_unstemmed High throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agents
title_short High throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agents
title_sort high throughput method for simultaneous screening of membrane permeability and toxicity for discovery of new cryoprotective agents
topic Cryopreservation
Vitrification
Freezing
Cell membrane permeability
CPA
Cryoprotectant
url https://doi.org/10.1038/s41598-025-85509-x
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