نتایج جستجو برای: tropic

تعداد نتایج: 2227  

Journal: :Biological and Pharmaceutical Bulletin 2017

Journal: :Journal of virology 2009
Nagadenahalli B Siddappa Ruijiang Song Victor G Kramer Agnès-Laurence Chenine Vijayakumar Velu Helena Ong Robert A Rasmussen Ricky D Grisson Charles Wood Hong Zhang Chipeppo Kankasa Rama Rao Amara James G Else Francis J Novembre David C Montefiori Ruth M Ruprecht

Human immunodeficiency virus clade C (HIV-C) accounts for >56% of all HIV infections worldwide. To investigate vaccine safety and efficacy in nonhuman primates, a pathogenic, R5-tropic, neutralization-sensitive simian-human immunodeficiency virus (SHIV) carrying HIV-C env would be desirable. We have constructed SHIV-2873Ni, an R5-tropic SHIV carrying a primary pediatric HIV-C env gene isolated ...

2014
Katherine E. McLeod Tanvier Omar Caroline T. Tiemessen Nkeko Tshabangu Neil A. Martinson

PHI. Chronic HIV-infected patients with CXCR4-using viruses are described as having faster disease progression compared with patients with CCR5-tropic strains. Our analysis did not support this relation, and we found a greater CD4+-cell increase after initiation of ART in patients harboring CXCR4-using virus, regardless of algorithm choice. Patients with CXCR4-tropic viruses have a greater CD4-...

Journal: :AIDS Research and Therapy 2005
Joseph Anderson Ramesh Akkina

BACKGROUND: RNA interference (RNAi) mediated by small interfering RNAs (siRNAs) has proved to be a highly effective gene silencing mechanism with great potential for HIV/AIDS gene therapy. Previous work with siRNAs against cellular coreceptors CXCR4 and CCR5 had shown that down regulation of these surface molecules could prevent HIV-1 entry and confer viral resistance. Since monospecific siRNAs...

2011
Laura Scrivano Christian Sinzger Hans Nitschko Ulrich H. Koszinowski Barbara Adler

Human cytomegalovirus (HCMV) can infect many different cell types in vivo. Two gH/gL complexes are used for entry into cells. gH/gL/pUL(128,130,131A) shows no selectivity for its host cell, whereas formation of a gH/gL/gO complex only restricts the tropism mainly to fibroblasts. Here, we describe that depending on the cell type in which virus replication takes place, virus carrying the gH/gL/pU...

Journal: :Antimicrobial agents and chemotherapy 2011
Adrien Saliou Pierre Delobel Martine Dubois Florence Nicot Stéphanie Raymond Vincent Calvez Bernard Masquelier Jacques Izopet

There have been few studies on the concordance between phenotypic assays for predicting human immunodeficiency virus type 1 (HIV-1) coreceptor usage. The sensitivity of ultradeep pyrosequencing combined with genotyping tools is similar to that of phenotypic assays for detecting minor CXCR4-using variants. We evaluated the agreement between two phenotypic assays, the Toulouse tropism test (TTT) ...

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