Tae-Won Kwak, Young-IL Jeong, Do-Hyung Kim, Hye-Myung Lee, Cy-Hyun Kim, Chung-Wook Chung, Dae Hwan Kang
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192911
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원문정보
초록
영어
Nanoparticles or polymeric micelles based on stimuli-responsive drug release have been extensively investigated in recent decades [1,2]. Especially, pH-sensitive drug targeting using pH-sensitive polymers against solid tumor has attracted remarkably since solid tumor has acidic environment [3]. Tumor targeting based on pH-responsive polymeric nanoparticles or micelles is known to have superior antitumor activity against various solid tumors. In this study, we prepared block copolymers composed of poly(L-histidine) (PHS) and dextran (DexPHS) to make pH-responsive polymeric micelles for pH-based tumor targeting. Doxorubicin (DOX) incorporated pH-resposive polymeric micelles of DexPHS block copolymer was prepared by dialysis method. DOX- incorporated polymeric micelles showed that particle size was changed by changes of solution pH, i.e. size of polymeric micelles were increased at acidic pH while they showed reduced particle size at basic pH. Furthermore, drug release was faster at acidic pH than basic pH. These results indicated that DexPHS polymeric micelles have pH-sensitive properties and then drug release was also controlled by pH. Antitumor activity of DOX-incorporated DexPHS polymeric micelles were studied using HCT116 human colon cancer cells. Results indicated that cell viability with polymeric micelle treatment was decreased at acidic pH while DOX treatment did not show significant changes against pH variation. In colculsion, our results indicated that DexPHS polymeric micelles are promising candidates for antitumor drug targeting.
저자
Tae-Won Kwak [ Nat. Res. & Dev. Center for Hepatobiliary Cancer, Pusan National University Yangsan Hospital ]
Young-IL Jeong [ Nat. Res. & Dev. Center for Hepatobiliary Cancer, Pusan National University Yangsan Hospital ]
Do-Hyung Kim [ Nat. Res. & Dev. Center for Hepatobiliary Cancer, Pusan National University Yangsan Hospital ]
Hye-Myung Lee [ Nat. Res. & Dev. Center for Hepatobiliary Cancer, Pusan National University Yangsan Hospital ]
Cy-Hyun Kim [ Nat. Res. & Dev. Center for Hepatobiliary Cancer, Pusan National University Yangsan Hospital ]
Chung-Wook Chung [ Nat. Res. & Dev. Center for Hepatobiliary Cancer, Pusan National University Yangsan Hospital ]
Dae Hwan Kang [ Nat. Res. & Dev. Center for Hepatobiliary Cancer, Pusan National University Yangsan Hospital ]
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.