Table 1.
Analytical test | Method | Acceptance Criteria |
---|---|---|
Appearance | Off-white, opaque, homogeneous suspension following mixing | Visual, no clumps |
Phenotype | Flow Cytometry | ≥ 80% CD73, CD90, CD105 ≤ 2% CD45, CD34, CD11b, CD19, HLA DR |
Cell Viability | Flow Cytometry | ≥ 80% |
Potency by Immunosuppression | Inhibition of PHA-induced proliferation of hPBMC by WJMSC | ≥ 20% |
Endotoxin | Bacterial endotoxin USP <85> | < 12.5 EU/ml |
Mycoplasma | Biochemical luminescence assay | Absence of mycoplasma |
Sterility | Microbiological control of cellular product USP <71> | Absence of micro organisms |
Chromosomal Stability | Karyotype | Absence of chromosomal alterations |
EU = endotoxin units, hPBMC= human peripheral blood mononuclear cells.