Kim, Bieong-Kil Kim, Dongkyu Kwak, Gijung Yhee, Ji Young Kwon, Ick-Chan Kim, Sun Hwa Yeo, Yoon 2024-01-20T01:31:02Z 2024-01-20T01:31:02Z 2021-09-05 2017-06 2373-9878 https://pubs.kist.re.kr/handle/201004/122679 We report unique bioactivity of a polycation-polyanion complex with potential utility for cancer therapy. A complex of disulfide-cross-linked polyethylenimine (CLPEI), a polycation used for gene complexation, and dermatan sulfate (DS), an anionic polysaccharide to shield excessive cationic charge of the former, has toxicity to a specific group of cancer cell lines, including B16-F10 murine melanoma, A375SM human melanoma, and PC-3 human prostate cancer cells. These CLPEI-DS-sensitive cells express CD146, which binds to the complex via interaction with DS. There is a positive correlation between toxicity and intracellular level of CLPEI, indicating that the CLPEI-DS-sensitivity is attributable to the increased cellular uptake of CLPEI mediated by the DS-CD146 interactions. In vitro studies show that CLPEI-DS complex causes G(0)/G(1) phase arrest and apoptotic cell death. In syngeneic and allograft models of B16-F10 melanoma, CLPEI-DS complex administered with a subtoxic level of doxorubicin potentiates the chemotherapeutic effect of the drug by loosening tumor tissues. Given the unique toxicity, CLPEI-DS complex may be a useful carrier of gene or chemotherapeutics for the therapy of CD146-positive cancers. English AMER CHEMICAL SOC CD146 EXPRESSION DELIVERY CHITOSAN PROGRESSION MOLECULE ADHESION CARRIERS LIPIDS DEATH Polyethylenimine-Dermatan Sulfate Complex, a Bioactive Biomaterial with Unique Toxicity to CD146-Positive Cancer Cells Article 10.1021/acsbiomaterials.7b00207 1 ACS BIOMATERIALS SCIENCE & ENGINEERING, v.3, no.6, pp.990 - 999 ACS BIOMATERIALS SCIENCE & ENGINEERING 3 6 990 999 scie scopus 000403386500014 2-s2.0-85020703733 Materials Science, Biomaterials Materials Science Article CD146 EXPRESSION DELIVERY CHITOSAN PROGRESSION MOLECULE ADHESION CARRIERS LIPIDS DEATH bioactive biomaterials polyethylenimine dermatan sulfate CD146 melanoma