Proline-conditioning and chemically-programmed ice nucleation protects spheroids during cryopreservation.

Proline-conditioning and chemically-programmed ice nucleation protects spheroids during cryopreservation.
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DOI:
10.1039/d3cc02252h
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发表时间:
2023-07-20
影响因子:
4.9
通讯作者:
Gibson, Matthew I.
Gibson, Matthew I.
中科院分区:
化学2区
文献类型:
--
作者:
Gao, Yanan;Bissoyi, Akalabya;Kinney, Nina L. H.;Whale, Thomas F.;Guo, Qiongyu;Gibson, Matthew I.

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Spheroids mimic 3-D tissue niches better than standard cell cultures. Cryopreserving spheroids, however, remains challenging as conventional cryoprotectants do not mitigate all damage mechanisms. Here chemically-programmed extracellular ice nucleation is used to prevent supercooling, alongside proline pre-conditioning, which are found to synergystically improve post-thaw recovery of spheroids. This validates the need to identify compounds and materials to address both biochemical and biophysical damage pathways beyond standard cryoprotectants. Addressing both biochemical and biophysical mechanisms of cryo-damage through proline preconditioning and induced ice nucleation rescues spheroids from cryopreservation damage.
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