Abstract
Polysaccharides isolated from Phellinus baumii (PBP) significantly enhanced both lipopolysaccharide (LPS)-induced B lymphocyte proliferation and concanavalin A (Con A)-induced T lymphocyte proliferation. However, PBP (12.5–100 μg ml−1) significantly suppressed the LPS-induced nitric oxide (NO) production in RAW264.7 cells in a concentration-dependent manner. The maximal inhibition of PBP on NO production was 37.5% at 100 μg ml−1. These results provide useful in vitro information to explain the immunostimulating activity and anti-inflammatory activity of PBP.
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