Reference - Detail
| RRC ID | 37496 |
|---|---|
| Author | Somiya M, Sasaki Y, Matsuzaki T, Liu Q, Iijima M, Yoshimoto N, Niimi T, Maturana AD, Kuroda S. |
| Title | Intracellular trafficking of bio-nanocapsule-liposome complex: Identification of fusogenic activity in the pre-S1 region of hepatitis B virus surface antigen L protein. |
| Journal | J Control Release |
| Abstract |
Bio-nanocapsules (BNCs) are a hollow nanoparticle consisting of about 100-nm liposome (LP) embedding about 110 molecules of hepatitis B virus (HBV) surface antigen (HBsAg) L protein as a transmembrane protein. Owing to the human hepatocyte-recognizing domains on the N-terminal region (pre-S1 region), BNCs have recently been shown to attach and enter into human hepatic cells using the early infection mechanism of HBV. Since BNCs could form a complex with an LP containing various drugs and genes, BNC-LP complexes have been used as a human hepatic cell-specific drug and gene-delivery system in vitro and in vivo. However, the role of BNCs in cell entry and intracellular trafficking of payloads in BNC-LP complexes has not been fully elucidated. In this study, we demonstrate that low pH-dependent fusogenic activity resides in the N-terminal part of pre-S1 region (NPLGFFPDHQLDPAFG), of which the first FF residues are essential for the activity, and which facilitates membrane fusion between LPs in vitro. Moreover, BNC-LP complexes can bind human hepatic cells specifically, enter into the cells via clathrin-mediated endocytosis, and release their payloads mostly into the cytoplasm. Taken together, the BNC portion of BNC-LP complexes can induce membrane fusion between LPs and endosomal membranes under low pH conditions, and thereby facilitate the endosomal escape of payloads. Furthermore, the fusogenic domain of the pre-S1 region of HBsAg L protein may play a pivotal role in the intracellular trafficking of not only BNC-LP complexes but also of HBV. |
| Volume | 212 |
| Pages | 10-8 |
| Published | 2015-8-28 |
| DOI | 10.1016/j.jconrel.2015.06.012 |
| PII | S0168-3659(15)00619-7 |
| PMID | 26074149 |
| MeSH | Animals COS Cells Cell Line, Tumor Chlorocebus aethiops Endocytosis Humans Liposomes Mice Nanocapsules / administration & dosage* Saccharomyces cerevisiae* Viral Envelope Proteins / chemistry* |
| IF | 7.727 |
| Times Cited | 14 |
| WOS Category | PHARMACOLOGY & PHARMACY CHEMISTRY, MULTIDISCIPLINARY |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | X(Twitter) |
| Total number of mentions | 9 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| Human and Animal Cells | COS-1(RCB0143) |