Scale-Up of Academic Mesenchymal Stromal Cell Production

Autor: Bensoussan, Caroline Laroye, Mélanie Gauthier, Jessica Morello, Naceur Charif, Véronique Latger Cannard, Céline Bonnet, Alain Lozniewski, Andrei Tchirkov, Natalia De Isla, Véronique Decot, Loïc Reppel, Danièle
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of Clinical Medicine; Volume 12; Issue 13; Pages: 4414
ISSN: 2077-0383
DOI: 10.3390/jcm12134414
Popis: Background: Many clinical trials have reported the use of mesenchymal stromal cells (MSCs) following the indication of severe SARS-CoV-2 infection. However, in the COVID19 pandemic context, academic laboratories had to adapt a production process to obtain MSCs in a very short time. Production processes, especially freezing/thawing cycles, or culture medium have impacts on MSC properties. We evaluated the impact of an intermediate cryopreservation state during MSC culture to increase production yields. Methods: Seven Wharton’s jelly (WJ)-MSC batches generated from seven different umbilical cords with only one cryopreservation step and 13 WJ-MSC batches produced with intermediate freezing were formed according to good manufacturing practices. The identity (phenotype and clonogenic capacities), safety (karyotype, telomerase activity, sterility, and donor qualification), and functionality (viability, mixed lymphocyte reaction) were analyzed. Results: No significant differences between MSC production processes were observed, except for the clonogenic capacity, which was decreased, although it always remained above our specifications. Conclusions: Intermediate cryopreservation allows an increase in the production yield and has little impact on the basic characteristics of MSCs.
Databáze: OpenAIRE
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