نتایج جستجو برای: neutralization assay

تعداد نتایج: 232791  

Journal: :PloS one 2015
Irina Gates Victoria Olson Scott Smith Nishi Patel Inger Damon Kevin Karem

Currently, a number of assays measure Orthopoxvirus neutralization with serum from individuals, vaccinated against smallpox. In addition to the traditional plaque reduction neutralization test (PRNT), newer higher throughput assays are based on neutralization of recombinant vaccinia virus, expressing reporter genes such as β-galactosidase or green fluorescent protein. These methods could not be...

Journal: :Journal of virology 1999
A Trkola J Matthews C Gordon T Ketas J P Moore

We describe here a cell line-based assay for the evaluation of human immunodeficiency virus type 1 (HIV-1) neutralization. The assay is based on CEM.NKR cells, transfected to express the HIV-1 coreceptor CCR5 to supplement the endogenous expression of CD4 and the CXCR4 coreceptor. The resulting CEM.NKR-CCR5 cells efficiently replicate primary HIV-1 isolates of both R5 and X4 phenotypes. A compa...

Hoorieh Soleimanjahi, Mohammad Hassan Roostaee zahra Meshkat,

Objective(s) Herpes simplex viruses (HSVs) have widespread and ubiquitous prevalence in the human population and they have received a great deal of attention due to the range of diseases, they caused as a result of an infection. It seems that the fast and reliable diagnostic methods are needed for detecting the herpes simplex virus type 1 (HSV1) antibodies especially in patients with HSV encep...

2011
David Davis Wim Koornstra Daniella Mortier Zahra Fagrouch Ernst J. Verschoor Jonathan L. Heeney Willy M. J. M. Bogers

BACKGROUND A vaccine is needed to control the spread of human immunodeficiency virus type 1 (HIV-1). An in vitro assay that can predict the protection induced by a vaccine would facilitate the development of such a vaccine. A potential candidate would be an assay to quantify neutralization of HIV-1. METHODS AND FINDINGS We have used sera from rhesus macaques that have been immunized with HIV ...

2016
Atul Asati Olga Kachurina Alex Karol Vipra Dhir Michael Nguyen Robert Parkhill Diana Kouiavskaia Konstantin Chumakov William Warren Anatoly Kachurin Florian Krammer

Neutralizing antibodies induced by vaccination or natural infection play a critically important role in protection against the viral diseases. In general, neutralization of the viral infection occurs via two major pathways: pre- and post-attachment modes, the first being the most important for such infections as influenza and polio, the latter being significant for filoviruses. Neutralizing cap...

2018
Yuetao Li Yongkun Zhao Cuiling Wang Xuexing Zheng Hualei Wang Weiwei Gai Hongli Jin Feihu Yan Boning Qiu Yuwei Gao Nan Li Songtao Yang Xianzhu Xia

Rift Valley fever (RVF) is an acute, febrile zoonotic disease that is caused by the RVF virus (RVFV). RVF is mainly prevalent on the Arabian Peninsula, the African continent, and several islands in the Indian Ocean near southeast Africa. RVFV has been classified by the World Organisation for Animal Health (OIE) as a category A pathogen. To avoid biological safety concerns associated with use of...

2014
Enas Sheik-Khalil Mark-Anthony Bray Gülsen Özkaya Şahin Gabriella Scarlatti Marianne Jansson Anne E Carpenter Eva Maria Fenyö

BACKGROUND Standardized techniques to detect HIV-neutralizing antibody responses are of great importance in the search for an HIV vaccine. METHODS Here, we present a high-throughput, high-content automated plaque reduction (APR) assay based on automated microscopy and image analysis that allows evaluation of neutralization and inhibition of cell-cell fusion within the same assay. Neutralizati...

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