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Immune cells were co-cultured with KKU055 at the E:T ratio 20:1 in the presence or absence of 0.5 and 1 mg/mL of the polysaccharide extract of Spirulina sp. The cells were harvested after 48 hours of co-culture to determine the proportion of CD4 (CD3+CD4+) (A), CD8 (CD3+CD8+) (B), NK (CD3-CD16+), and NKT (CD3+CD16+) (C).
