Low DMSO Cryopreservation of Stem Cells Enabled by Macromolecular Cryoprotectants
Overview
Biotechnology
Affiliations
Mesenchymal stromal (stem) cells have potential in regenerative medicine and modulating the immune system. To deliver any cell-based therapy to the patient, it must be cryopreserved, most commonly in DMSO, which impacts cell function and causes clinical side effects. Here we report the use of a synthetically scalable polyampholyte to rescue the cryopreservation of mesenchymal stromal cells in low [DMSO] cryopreservation. Flow cytometry showed retention of key markers of multipotency comparable to 10% (v/v) DMSO, and the cells could be differentiated, showing this polymer material can be used to improve, or replace, current cryopreservation strategies.
Sousa P, Lopes B, Sousa A, Coelho A, de Sousa Moreira A, Rema A Biomedicines. 2025; 12(12.
PMID: 39767760 PMC: 11672956. DOI: 10.3390/biomedicines12122854.
Lee S, Joo Y, Lee E, Byeon Y, Kim J, Pyo K PLoS One. 2024; 19(2):e0294857.
PMID: 38394177 PMC: 10889882. DOI: 10.1371/journal.pone.0294857.
Post-thaw application of ROCK-inhibitors increases cryopreserved T-cell yield.
Gonzalez-Martinez N, Gibson M RSC Med Chem. 2023; 14(10):2058-2067.
PMID: 37859712 PMC: 10583820. DOI: 10.1039/d3md00378g.
Chemical approaches to cryopreservation.
Murray K, Gibson M Nat Rev Chem. 2023; 6(8):579-593.
PMID: 37118007 DOI: 10.1038/s41570-022-00407-4.
Cryopreservation of Liver-Cell Spheroids with Macromolecular Cryoprotectants.
Bissoyi A, Tomas R, Gao Y, Guo Q, Gibson M ACS Appl Mater Interfaces. 2023; 15(2):2630-2638.
PMID: 36621888 PMC: 9869333. DOI: 10.1021/acsami.2c18288.