Activation of NADPH Oxidase by β-Glucan from Phellinus baumii (Agaricomycetes) in RAW 264.7 Cells.

Production of oxygen-derived free radicals in phagocytes is important in preventing bacterial and fungal infections. Among free radicals, superoxide anions are a typical reactive oxygen species secreted by macrophages and neutrophils. NADPH oxidase (NOX) is a key producer of superoxide anions in these cells.

Tissue Inhibitor of Metalloproteinase-1 (TIMP-1) and IL-23 Induced by Polysaccharide of the Black Hoof Medicinal Mushroom, Phellinus linteus (Agaricomycetes).

Matrix metalloproteinase-9 (MMP-9) has diverse roles associated with cell growth, migration, invasion, and angiogenesis. Tissue inhibitor of metalloproteinase-1 (TIMP-1) is known to inhibit MMP-9 by complexing with it at a 1:1 ratio. Suppressing MMP-9 activity through the overexpression of TIMP-1 allows for regulation of tumor growth and metastasis by blocking invasion and angiogenesis in the tumor microenvironment.