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- Title
Compliance with Good Manufacturing Practice in the Assessment of Immunomodulation Potential of Clinical Grade Multipotent Mesenchymal Stromal Cells Derived from Wharton's Jelly.
- Authors
Grau-Vorster, Marta; Rodríguez, Luciano; del Mazo-Barbara, Anna; Mirabel, Clémentine; Blanco, Margarita; Codinach, Margarita; Gómez, Susana G.; Querol, Sergi; García-López, Joan; Vives, Joaquim
- Abstract
Background: The selection of assays suitable for testing the potency of clinical grade multipotent mesenchymal stromal cell (MSC)-based products and its interpretation is a challenge for both developers and regulators. Here, we present a bioprocess design for the production of Wharton's jelly (WJ)-derived MSCs and a validated immunopotency assay approved by the competent regulatory authority for batch release together with the study of failure modes in the bioprocess with potential impact on critical quality attributes (CQA) of the final product. Methods: The lymphocyte proliferation assay was used for determining the immunopotency of WJ-MSCs and validated under good manufacturing practices (GMP). Moreover, failure mode effects analysis (FMEA) was used to identify and quantify the potential impact of different unexpected situations on the CQA. Results: A production process based on a two-tiered cell banking strategy resulted in batches with sufficient numbers of cells for clinical use in compliance with approved specifications including MSC identity (expressing CD73, CD90, CD105, but not CD31, CD45, or HLA-DR). Remarkably, all batches showed high capacity to inhibit the proliferation of activated lymphocytes. Moreover, implementation of risk management tools led to an in-depth understanding of the manufacturing process as well as the identification of weak points to be reinforced. Conclusions: The bioprocess design showed here together with detailed risk management and the use of a robust method for immunomodulation potency testing allowed for the robust production of clinical-grade WJ-MSCs under pharmaceutical standards.
- Subjects
CURRENT good manufacturing practices; FAILURE mode &; effects analysis; IMMUNOREGULATION; STROMAL cells; MANUFACTURING processes; JELLY
- Publication
Cells (2073-4409), 2019, Vol 8, Issue 5, p484
- ISSN
2073-4409
- Publication type
Article
- DOI
10.3390/cells8050484