Polyproline as a Minimal Antifreeze Protein Mimic That Enhances the Cryopreservation of Cell Monolayers.

Polyproline as a Minimal Antifreeze Protein Mimic That Enhances the Cryopreservation of Cell Monolayers.
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DOI:
10.1002/anie.201706703
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发表时间:
2017-12-11
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Gibson MI
Gibson MI
中科院分区:
其他
文献类型:
--
作者:
Graham B;Bailey TL;Healey JRJ;Marcellini M;Deville S;Gibson MI

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Tissue engineering, gene therapy, drug screening, and emerging regenerative medicine therapies are fundamentally reliant on high‐quality adherent cell culture, but current methods to cryopreserve cells in this format can give low cell yields and require large volumes of solvent “antifreezes”. Herein, we report polyproline as a minimum (bio)synthetic mimic of antifreeze proteins that is accessible by solution, solid‐phase, and recombinant methods. We demonstrate that polyproline has ice recrystallisation inhibition activity linked to its amphipathic helix and that it enhances the DMSO cryopreservation of adherent cell lines. Polyproline may be a versatile additive in the emerging field of macromolecular cryoprotectants.
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