In the present study, a targeted gene carrier for αvβ3 integrin-overexpressed tumor cells was designed with widely applied materials containing water soluble chitosan(WSC), RGD peptide, and polyethyleneimine(PEI). A study of the endocytic mechanism resulted in the microtubule-dependent macropinocytosis and clathrin-mediated endocytosis. In addition, the PEI/WSC copolymer with dendrimer RGD peptide (four-branched RGD moiety) as a targeting moiety suppressed the growth of a solid tumor mass in an in vivo mouse xenograft model with PC3 cells, prostate tumor cells, by silencing BCL-2 mRNA. This result provides a good candidate with a simple and biocompatible gene carrier. On the other hand, the development of drug delivery system (DDS) for antibiotic therapy may be essential to reduce cytotoxicity and side effects of drug, and to overcome drug-resistant fungal strains. Until now, many researches have been reported to improve the therapeutic index of AmB in PEG-based, lipid-based, and polymer-based AmB formulations. However, their high cost and side effects is mainly limiting factor in public use. The aim of this study was to prove another function of the antifungal peptide as a novel ligand which targets fungal pathogens specifically in infected animal model and to investigate a synergistic action between antifungal peptide and agent. In addition, we proposed a minimum dose of antifungal agent in clinical application via pH-responsive and redox-sensitive drug carrier.
저자
Mi-Kyeong Jang [ 장미경 | Department of Polymer Science and Engineering, College of Engineering, Sunchon National University, Sunchoeon, 57922, Korea ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.