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논문 기본 정보

자료유형
학술저널
저자정보
Junhyung Cho (Korea National Institute of Health) Hwajung Yi (Korea National Institute of Health) Mi-Seon Lee (Korea National Institute of Health) Chan Hee Lee (Chungbuk National University) Chun Kang (Korea Centers for Disease Control and Prevention) Kisoon Kim (Korea National Institute of Health)
저널정보
대한미생물학회 JOURNAL OF BACTERIOLOGY AND VIROLOGY JOURNAL OF BACTERIOLOGY AND VIROLOGY Vol.48 No.2
발행연도
2018.6
수록면
49 - 58 (10page)

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Cell permeable peptide (CPP) is able to transport itself or conjugated molecules such as nucleotides, peptides, and proteins into cells. Since short peptide of human immunodeficiency virus-1 Tat has been discovered as CPP, it has been continuously studied for their ability to transport heterologous cargoes into cells. In this study, we have focused on the fusion protein of respiratory syncytial virus (RSV), which has six basic amino acids in multi basic furin-dependent cleavage site (MBFCS) required to be cationic CPP. To develop more efficient CPP, the sequence, which linked two MBFCS, was synthesized (called RS-CPP). To assess cell permeable efficiency of RSCPP or MBFCS, the peptides was conjugated with fluorescein isothiocyanate, and cell permeable efficiency was measured by fluorescence-activated cell sorting. Cell permeability of RS-CPP or MBFCS was increased in a dose-dependent manner, but RS-CPP showed more efficient cell permeability than MBFCS in MDCK, HeLa, Vero E6, and A549 cells. To evaluate whether RS-CPP can transport its conjugated functional peptide (VIVIT) in CD8+ T cell, it was confirmed that IL-2 and β-galactosidase expression were significantly inhibited through selective block of nuclear factor activated T-cell. To investigate endocytic pathways, Cre-mediated DNA recombination (loxP-STOP-loxP-LacZ reporter system) was investigated with divergent endocytosis inhibitors in TE671 cells, and RS-CPP endocytosis is occurred via binding cell surface glycosaminoglycan and clathrin-mediated endocytosis, or macropinocytosis. These results indicated that RS-CPP could be a novel cationic CPP, and it would help understanding for delivery of biologically functional molecules based on viral basic amino acids.

목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES

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