Bio-inspired solute enables preservation of human oocytes using minimum volume vitrification.

Bio-inspired solute enables preservation of human oocytes using minimum volume vitrification.
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DOI:
10.1002/term.2439
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发表时间:
2018-01
影响因子:
3.3
通讯作者:
Demirci U
Demirci U
中科院分区:
工程技术3区
文献类型:
--
作者:
Choi JK;El Assal R;Ng N;Ginsburg E;Maas RL;Anchan RM;Demirci U

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The ability to cryopreserve human oocytes has significant potential for fertility preservation. Current cryopreservation methods still suffer from the use of conventional cryoprotectants, such as dimethyl sulfoxide (DMSO), causing loss of viability and function. Such injuries result from the toxicity and high concentration of cryoprotectants as well as mechanical damage of cells due to ice crystal formation during the cooling and rewarming processes. Here, we report preservation of human oocytes following vitrification using an innovative bio-inspired cryoprotectant integrated with a minimum volume vitrification approach. The results demonstrate that the recovered human oocytes maintained viability following vitrification and rewarming. Moreover, when this approach was used to vitrify mouse oocytes, the recovered oocytes preserved their viability and function following vitrification and rewarming. This bio-inspired approach substitutes DMSO, a well-known toxic cryoprotectant, with ectoine, a non-toxic naturally occurring solute. The bio-inspired vitrification approach has potential to improve fertility preservation for women undergoing cancer treatment and endangered mammal species.
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