A highly quantitative detection system for cell entry of human norovirus-like particles based on the complementation of NanoLuc luciferase. 2022

Miyuki Kimura, and Kazuki Sekiguchi, and Shoko Okitsu, and Hiroshi Ushijima, and Hideki Tani
Department of Microbiology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, 930-0194, Japan.

Human norovirus (HuNoV) is the common cause of acute gastroenteritis worldwide. Norovirus-like particles (VLPs) have been applied to analyze virus-host cell interactions. This study established a highly quantitative detection system for HuNoV VLP entry into live cells based on the NanoLuc luciferase complementation. First, we generated a HiBiT-tagged VLP and examined VLP-HiBiT entry into Vero cells expressing LgBiT. The entry was saturable and competed by a non-labeled VLP, indicating the VLP-specific entry into the host cells. Upon comparison of the VLP-HiBiT entry among some cell lines, Caco-2 cells were found to be the most susceptible. The VLP-HiBiT entry was unaffected by treatment at an acidic pH value above 3.0 and was significantly reduced by heat treatment at 75°C for more than 2 min. These results reflected those of previous studies, indicating the stability of VLPs and binding to histo-blood group antigens at various pH ranges and temperatures and cellular tropism.

UI MeSH Term Description Entries
D008156 Luciferases Enzymes that oxidize certain LUMINESCENT AGENTS to emit light (PHYSICAL LUMINESCENCE). The luciferases from different organisms have evolved differently so have different structures and substrates. Luciferase
D002522 Chlorocebus aethiops A species of CERCOPITHECUS containing three subspecies: C. tantalus, C. pygerythrus, and C. sabeus. They are found in the forests and savannah of Africa. The African green monkey is the natural host of SIMIAN IMMUNODEFICIENCY VIRUS and is used in AIDS research. African Green Monkey,Cercopithecus aethiops,Cercopithecus griseoviridis,Cercopithecus griseus,Cercopithecus pygerythrus,Cercopithecus sabeus,Cercopithecus tantalus,Chlorocebus cynosuros,Chlorocebus cynosurus,Chlorocebus pygerythrus,Green Monkey,Grivet Monkey,Lasiopyga weidholzi,Malbrouck,Malbrouck Monkey,Monkey, African Green,Monkey, Green,Monkey, Grivet,Monkey, Vervet,Savanah Monkey,Vervet Monkey,Savannah Monkey,African Green Monkey,Chlorocebus cynosuro,Green Monkey, African,Green Monkeys,Grivet Monkeys,Malbrouck Monkeys,Malbroucks,Monkey, Malbrouck,Monkey, Savanah,Monkey, Savannah,Savannah Monkeys,Vervet Monkeys
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014709 Vero Cells A CELL LINE derived from the kidney of the African green (vervet) monkey, (CHLOROCEBUS AETHIOPS) used primarily in virus replication studies and plaque assays. Cell, Vero,Cells, Vero,Vero Cell
D053586 Virus Internalization The entering of cells by viruses following VIRUS ATTACHMENT. This is achieved by ENDOCYTOSIS, by translocation of the whole virus across the cell membrane, by direct MEMBRANE FUSION of the viral membrane with the CELL MEMBRANE, or by fusion of the membrane of infected cells with the membrane of non-infected cells causing SYNCYTIA to be formed. Viral Entry,Viral Internalization,Viral Membrane Fusion,Virus Entry,Virus Membrane Fusion,Entry, Viral,Entry, Virus,Fusion, Viral Membrane,Internalization, Viral,Internalization, Virus,Membrane Fusion, Viral
D018938 Caco-2 Cells Human colonic ADENOCARCINOMA cells that are able to express differentiation features characteristic of mature intestinal cells, such as ENTEROCYTES. These cells are valuable in vitro tools for studies related to intestinal cell function and differentiation. Caco 2 Cells,Caco-2 Cell,Cell, Caco-2,Cells, Caco-2
D029322 Norovirus A genus in the family CALICIVIRIDAE, associated with epidemic GASTROENTERITIS in humans. The type species, NORWALK VIRUS, contains multiple strains. Norwalk-like Viruses,Small Round-Structured Viruses,Noroviruses,Norwalk like Viruses,Round-Structured Viruses, Small,Small Round Structured Viruses

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