Chi, Lianhua Na, Moon-Hee Jung, Hyun-Kyung Vadevoo, Sri Murugan Poongkavithai Kim, Cheong-Wun Padmanaban, Guruprasath Park, Tae-In Park, Jae-Yong Hwang, Ilseon Park, Keon Uk Liang, Frank Lu, Maggie Park, Jiho Kim, In-San Lee, Byung-Heon 2024-01-20T06:33:26Z 2024-01-20T06:33:26Z 2021-09-05 2015-07-10 0168-3659 https://pubs.kist.re.kr/handle/201004/125235 A growing body of evidence suggests that pathological lesions express tissue-specific molecular targets or bio-markers within the tissue. Interleukin-4 receptor (IL-4R) is overexpressed in many types of cancer cells, including lung cancer. Here we investigated the properties of IL-4R-binding peptide-1 (IL4RPep-1), a CRKRLDRNC peptide, and its ability to target the delivery of liposomes to lung tumor. IL4RPep-1 preferentially bound to H226 lung tumor cells which express higher levers of IL-4R compared to H460 lung tumor cells which express less IL-4R. Mutational analysis revealed that C1, R2, and R4 residues of IL4RPep-1 were the key binding determinants. IL4RPep-1-labeled liposomes containing doxorubicin were more efficiently internalized in H226 cells and effectively delivered doxorubicin into the cells compared to unlabeled liposomes. In vivo fluorescence imaging of nude mice subcutaneously xenotransplanted with H226 tumor cells indicated that IL4RPep-1-labeled liposomes accumulate more efficiently in the tumor and inhibit tumor growth more effectively compared to unlabeled liposomes. Interestingly, expression of IL-4R was high in vascular endothelial cells of tumor, while little was detected in vascular endothelial cells of control organs including the liver. IL-4R expression in cultured human vascular endothelial cells was also up-regulated when activated by a pro-inflammatory cytokine tumor necrosis factor-a. Moreover, the up-regulation of IL-4R expression was observed in primary human lung cancer tissues. These results indicate that IL-4R-targeting nanocarriers may be a useful strategy to enhance drug delivery through the recognition of IL-4R in both tumor cells and tumor endothelial cells. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV ALPHA-CHAIN CYTOTOXIN THERAPY EGFR MUTATION CANCER CELLS 1ST-LINE TREATMENT OXIDATIVE STRESS DRUG-DELIVERY PHAGE DISPLAY OPEN-LABEL IN-VIVO Enhanced delivery of liposomes to lung tumor through targeting interleukin-4 receptor on both tumor cells and tumor endothelial cells Article 10.1016/j.jconrel.2015.05.260 1 JOURNAL OF CONTROLLED RELEASE, v.209, pp.327 - 336 JOURNAL OF CONTROLLED RELEASE 209 327 336 scie scopus 000355674300033 2-s2.0-84930227082 Chemistry, Multidisciplinary Pharmacology & Pharmacy Chemistry Pharmacology & Pharmacy Article ALPHA-CHAIN CYTOTOXIN THERAPY EGFR MUTATION CANCER CELLS 1ST-LINE TREATMENT OXIDATIVE STRESS DRUG-DELIVERY PHAGE DISPLAY OPEN-LABEL IN-VIVO IL-4 receptor Liposomes Lung tumor Targeted drug delivery