Bioactive polysaccharides from natural sources: A review on the antitumor and immunomodulating activities

Polysaccharides are a structurally diverse group of biological macromolecules of well-known occurrence in nature. The mushroom, plant and other polysaccharides draw a lot of attention due to their several difficult biological properties, such as, anticancer, antiviral, immunomodulating, antimicrobial, anticoagulant, antidiabetic, antioxidant, and antitumor activities. Several bioactive glucans and heteroglycans were isolated from different...