Isolation and Characterization of Novel Human Parechovirus from Clinical Samples
نویسندگان
چکیده
Using Vero cells, we isolated a virus (NII561-2000) from a cerebrospinal fluid specimen of a 1-year-old girl with Reye syndrome. The determined amino acid sequence of the virus indicated that the isolate was a human parechovirus (HPeV), a member of Picornaviridae. Neutralization test showed that the NII561-2000 virus had distinct antigenicity to HPeV-1, HPeV-2, and HPeV-3, and that the sequence was distinct from these types as well as from HPeV-4 and HPeV-5. Thus, we propose the virus (NII561-2000) as the prototype of HPeV-6. We isolated 10 NII561-2000-related viruses, 14 HPeV-1, 16 HPeV-3, and 1 HPeV-4 of 41 HPeVs from various clinical samples collected in Niigata, Japan. Clinical symptoms of the persons infected with the NII561-2000-related viruses were infectious gastroenteritis, rash, upper respiratory tract infection, and paralysis, in addition to Reye syndrome in the 1-year-old girl.
منابع مشابه
Novel Human Parechovirus, Sri Lanka
Of 362 fecal samples collected from children with acute gastroenteritis in Sri Lanka during 2005-2006, 30 (8.3%) were positive for human parechovirus (HPeV) by reverse transcription-PCR. A novel HPeV, designated as HPeV10, was identified in 2 samples by sequence analysis of the viral protein 1 gene of the detected HPeVs.
متن کاملGenomic Characterization of Novel Human Parechovirus Type
Using a simple metagenomic approach, we identified a divergent human parechovirus (HPeV) in the stool of a child in Pakistan. Genomic characterization showed this virus was distinct enough from reported HPeV types to qualify as candidate prototype for the seventh HPeV type.
متن کاملIsolation and Characterization of Novel Phage Displayed scFv Fragment for Human Tumor Necrosis Factor Alpha and Molecular Docking Analysis of Their Interactions
Tumor necrosis factor alpha (TNF-α) expression amplifies to excess amounts in several disorders such as rheumatoid arthritis and psoriasis. Although, Anti-TNF biologics have revolutionized the treatment of these autoimmune diseases, formation of anti-drug antibodies (ADA) has dramatically affected their use. The next generation antibodies (e.g. Fab, scFv) have not only reduced resulted immunoge...
متن کاملIsolation and Characterization of Novel Phage Displayed scFv Fragment for Human Tumor Necrosis Factor Alpha and Molecular Docking Analysis of Their Interactions
Tumor necrosis factor alpha (TNF-α) expression amplifies to excess amounts in several disorders such as rheumatoid arthritis and psoriasis. Although, Anti-TNF biologics have revolutionized the treatment of these autoimmune diseases, formation of anti-drug antibodies (ADA) has dramatically affected their use. The next generation antibodies (e.g. Fab, scFv) have not only reduced resulted immunoge...
متن کاملThe isolation of human parechovirus 1 from cases of acute respiratory illness in children.
1. Hamada, S. and Slade, H. D. (1980): Biology, immunology and carinogenisity of Streptococcus mutans. Microbiol. Rev., 44, 331-384. 2. Okahashi, N., Sasakawa, C., Yoshikawa, M., Hamada, M. and Koga, T. (1989): Cloning of a surface protein antigen gene from serotype c StylePtOCOCCuS mutanS. Mol. Microbio1., 3, 221228. 3. Hanada, N. and Kuramitsu, H. K. (1989): isolation and characterization of ...
متن کامل