The present invention relates to a non-injectable
drug delivery system using mucoadhesive nanoparticles, and to mucoadhesive nanoparticles and a method for producing the same, which prevent deformation of the nanoparticles due to mucosal
moisture, etc., and strengthen mucoadhesiveness to prevent loss by binding a mucoadhesive
polymer to the surface of the nanoparticles. The present invention also relates to a composition for maturing
antigen-presenting cells, a composition for treating infectious diseases, and a composition for treating
cancer, which comprise the mucoadhesive nanoparticles. The present invention also relates to mucoadhesive nanoparticles loaded with immune active substances (such as antigens and adjuvants) for
cancer treatment and
immunotherapy based on
antigen-presenting cells including dendritic cells (DCs), and a composition for immune anti-
cancer treatment comprising the same.