Immunopotentiating Effect of N-Acetyl-Chito-Oligosaccharides

In our previous papers on this subject (1, 2), we revealed that chit in and chitosan were able to display growth-inhibitory effects against tumor cells or pathogenic microbes inoculated in the peritoneal cavity of mice. The action mechanism of both polysaccharides was assumed to involve the active tion of phagocytic cells attracted to the peritoneal cavity from blood and lymphoid fluid through the peritoneal membrane by intraperitoneal administration of these polysaccharides.