Gurruchaga H, Del Burgo L Saenz, Orive G, M Hernandez R, Ciriza J, L Pedraz J
NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain.
Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain.
Bio Protoc. 2019 Feb 20;9(4):e3164. doi: 10.21769/BioProtoc.3164.
Cryopreservation is commonly used for the storage of cells, tissues, organs or 3D cell-based products using ultra-low temperatures, which involves the immersion in liquid nitrogen for their long-term preservation. The cryopreservation of several microencapsulated cells is usually performed by the slow freezing with the dimethyl sulfoxide (DMSO) as a cryoprotectant agent (CPA). In this study, we cryopreserved several microencapsulated cells with the natural, non-toxic low molecular-weight hyaluronan (LMW-HA) at 5% and DMSO 10% solution assessing cell viability and metabolic activity after thawing. The cryopreservation of microencapsulated D1 mesenchymal stem cells (D1MSC) and murine myoblast cells (C2C12) with the LMW-HA 5% presented similar outcomes after thawing compared to the DMSO solution, showing the low molecular weight hyaluronan as a natural, non-toxic CPA that can be used preventing the DMSO related adverse effects after the implantation of the cryopreserved cell-based products.
冷冻保存通常用于利用超低温储存细胞、组织、器官或基于3D细胞的产品,这涉及将其浸入液氮中进行长期保存。几种微囊化细胞的冷冻保存通常通过以二甲基亚砜(DMSO)作为冷冻保护剂(CPA)进行缓慢冷冻来实现。在本研究中,我们使用5%的天然、无毒低分子量透明质酸(LMW-HA)和10%的DMSO溶液对几种微囊化细胞进行冷冻保存,并在解冻后评估细胞活力和代谢活性。与DMSO溶液相比,用5%的LMW-HA冷冻保存微囊化D1间充质干细胞(D1MSC)和小鼠成肌细胞(C2C12)在解冻后呈现出相似的结果,表明低分子量透明质酸作为一种天然、无毒的CPA,可用于防止冷冻保存的基于细胞的产品植入后与DMSO相关的不良反应。