Abstract:
:We evaluated the effect of drug alternation on human immunodeficiency virus type 1 (HIV-1) suppression and emergence of resistant virus strains in CEM cell cultures. Rapid, that is, twice weekly, alternation of lamivudine and nevirapine (at 0.1 microg/ml) at the time of each subcultivation resulted in a long-term suppression of virus replication (up to 18 subcultivations, or 9 weeks) and eventual sterilization of the cell cultures. Under similar experimental conditions mutant virus rapidly emerged (within two or three subcultivations) when the same drug (lamivudine or nevirapine) was applied throughout. The longer the HIV-1-infected cell cultures were exposed to the same drug before shifting to the other drug, the shorter the time period for mutant virus to appear. Those virus strains that eventually emerged under suboptimal alternating drug therapy harbored a combination of lamivudine- and nonnucleoside reverse transcriptase (RT)-specific mutations in the RT gene. When extrapolated to the clinical setting, our data indicate that the efficacy of HIV-1 therapy may be markedly improved by rapid alternation of drug cocktails before detectable evidence of resistance development as compared with drug cocktail alternation after the first signs of drug resistance become visible.
journal_name
AIDS Res Hum Retrovirusesjournal_title
AIDS research and human retrovirusesauthors
Balzarini J,De Clercq Edoi
10.1089/088922201753342031subject
Has Abstractpub_date
2001-11-20 00:00:00pages
1625-34issue
17eissn
0889-2229issn
1931-8405journal_volume
17pub_type
杂志文章abstract::Signature pattern analysis identifies particular sites in amino acid or nucleic acid alignments of variable sequences that are distinctly representative of a query set of sequences relative to a background set. We explore the merits of using signature patterns for analysis of HIV-1 (human immunodeficiency virus type 1...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1992.8.1549
更新日期:1992-09-01 00:00:00
abstract::To evaluate the course of liver fibrosis, 328 HIV-hepatitis C virus (HCV)-coinfected patients (210 HCV treated and 118 HCV untreated) were followed-up for 38-42 months. Liver fibrosis was assessed by biopsy or elastometry at baseline and by elastometry afterward, in addition to other noninvasive indexes. A combined li...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2012.0108
更新日期:2013-02-01 00:00:00
abstract::Despite the availability of antiretroviral therapy (ART), HIV-infected drug users, particularly crack cocaine users, continue to have high HIV-related morbidity and mortality. We conducted a cross-sectional analysis of the baseline data for hospitalized HIV-infected crack cocaine users recruited for Project HOPE (Hosp...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2011.0329
更新日期:2012-09-01 00:00:00
abstract::Preexposure prophylaxis (PrEP) of HIV infection with tenofovir-containing regimens is effective, but plagued by poor adherence in some studies. Options for safe, effective, and acceptable PrEP products, especially for men and women at risk of HIV via receptive anal intercourse (RAI), are needed. We performed a randomi...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,随机对照试验
doi:10.1089/AID.2015.0086
更新日期:2015-11-01 00:00:00
abstract::Epidemiological and experimental data suggest that both robust neutralizing antibodies and potent cellular responses play important roles in controlling primary HIV-1 infection. In this study we have investigated the induction of systemic and mucosal immune responses to HIV gp120 monomer immunogen administered intrana...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2007.0148
更新日期:2008-02-01 00:00:00
abstract::HIV-1 infection is characterized by genetic diversity, with multiple subtypes and recombinant variants circulating, particularly in sub-Saharan Africa. During the Rwandan genocide, many women experienced multiple rapes and some became HIV-1 infected. We studied plasma and peripheral blood mononuclear cells (PBMCs) fro...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2012.0095
更新日期:2013-06-01 00:00:00
abstract::We describe four full-length genomic sequences of HIV-1 subtype B isolates from Russia. These full-length HIV-1 genomes were amplified by nested polymerase chain reaction and sequenced. The sequences obtained were subjected to neighbor-joining phylogenetic analysis using a Kimura two-parameter model and to detailed se...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.22.1192
更新日期:2006-11-01 00:00:00
abstract::Multiple impairments in HIV-1-specific cytotoxic T cells (CTL) have been reported, but derangements in HIV-1-specific CD8+ T-cell chemotaxis have not been described previously. We assessed migration to SDF-1alpha (stromal cell-derived factor 1-alpha) and CX3CL1 in vitro and expression of cognate receptors, CXCR4 and C...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2007.0259
更新日期:2008-07-01 00:00:00
abstract::We partially purified the human immunodeficiency virus (HIV) glycoprotein gp41 from infected H9 cells by immunoaffinity chromatography using a column containing the M25 monoclonal antibody (diMarzo-Veronese et al., 1985). A pH 11.5 buffer worked best for eluting the glycoprotein from this column. The eluted gp41 was u...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1988.4.51
更新日期:1988-02-01 00:00:00
abstract::It is known that the HTLV-I-transformed cell line MT4 releases chemotactic activity for monocytes spontaneously. The MT4 monocyte chemoattractant was purified to homogeneity and sequencing of 25 amino acids revealed identity with the C-C chemokine macrophage inflammatory protein-1 alpha (MIP-1 alpha/LD78). An anti-MIP...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1995.11.155
更新日期:1995-01-01 00:00:00
abstract::The development of HIV vaccines is an urgent priority and there is need to generate reagents representing multiple subtypes that can be used to screen HIV-1-specific responses. We used Aldrithiol-2 (AT-2), a mild oxidizing reagent, to eliminate the infectivity of HIV while maintaining its structure and ability to be p...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.0136
更新日期:2007-04-01 00:00:00
abstract::HIV-1 genital shedding is associated with increased HIV-1 transmission risk. Inflammation and ulceration are associated with increased shedding, while highly active antiretroviral therapy (HAART) has been shown to have a protective effect. We sought to examine the impact of cervical biopsies, a routine component of ce...
journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章
doi:10.1089/aid.2012.0341
更新日期:2013-07-01 00:00:00
abstract::HIV-1 disease is associated with many infectious and neoplastic complications. This is particularly true of the genitourinary tract, where high rates of renal disease, neoplasms, voiding and erectile dysfunction, hematuria, opportunistic genitourinary infections, and epididymo-orchitis are found in HIV-1-infected indi...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:
更新日期:1998-04-01 00:00:00
abstract::To understand the pathogenic potential and the true extent of human T-cell leukemia virus type II (HTLV-II) infection, it is important to develop a specific HTLV-II antigen-based serological test. Plasmid pIIB was constructed and induced in Escherichia coli to express a recombinant protein (RP) containing 140 amino ac...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1991.7.453
更新日期:1991-05-01 00:00:00
abstract::In recent years, increasing numbers of patients infected with HIV-1 non-B subtypes have been treated with modern antiretroviral regimens. Therefore, a better knowledge of HIV drug resistance in non-B strains is crucial. Thus, we compared the mutational pathways involved in drug resistance among the most common non-B s...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2011.0142
更新日期:2012-10-01 00:00:00
abstract::The incidence of anal cancer is increased in HIV-infected patients compared with the general population. Risk factors associated with the anal cancer precursor, high-grade squamous intraepithelial lesion (HSIL), have not been extensively studied in an urban black population with late-stage HIV disease. We performed a ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2018.0008
更新日期:2018-07-01 00:00:00
abstract::Nucleotide sequences for long terminal repeat (LTR), gag, the protease gene, and pol of a human T-lymphotropic virus type 1 (HTLV-1) isolate of probable Caribbean origin (HTLV-1CH) and a Zairian isolate (HTLV-1EL) were determined providing complete proviral sequences for these isolates. These sequences were compared w...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1991.7.923
更新日期:1991-11-01 00:00:00
abstract::The structure of the Vpu protein of human immunodeficiency virus type 1 (HIV-1) is composed of a short Nterminal domain (NTD), a transmembrane domain (TM), and a cytoplasmic domain (CD). Previous studies have shown that the Vpu protein from subtype B HIV-1 is transported predominantly to the rough endoplasmic reticulu...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2005.21.379
更新日期:2005-05-01 00:00:00
abstract::Enrolling and tracking cohorts for HIV vaccine efficacy trials requires that participants disclose behaviors that place them at risk for exposure to HIV. Brief screening procedures have been suggested for this purpose. In a previous study gay and bisexual men in three U.S. cities reported unprotected anal intercourse ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract::Recent studies suggest that natural killer T (NKT) cells play a role in early antiviral pathogenesis and are rapidly depleted in chronic human immunodeficiency virus type 1 (HIV-1) clade B infection. We aimed to characterize the phenotypic and functional characteristics of NKT cells in HIV-1 clade C-infected Africans ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2010.0237
更新日期:2011-05-01 00:00:00
abstract::Little is known about the consequences of short cycles of structured treatment interruption or definitive interruption of HAART for both T cell subset dynamics and T lymphoproliferative responses (LPR). Immunological follow-up was performed in 45 early chronical HIV-1-infected patients during short STI cycles during t...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.22.657
更新日期:2006-07-01 00:00:00
abstract::Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiologic agent of COVID-19, a disease that as of July 10, 2020, has infected >12 million people and killed >500,000. COVID-19 infection leads to acute respiratory distress syndrome in a subset of patients and is a primary driver of acute morbidity in...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2020.0161
更新日期:2020-08-10 00:00:00
abstract::Six morphine-dependent and three control macaques were infected with a mixture of SIV/SHIV. Half of the animals in the morphine group developed accelerated disease (rapid progressor) and died within 20 weeks postinfection. The evolution of the envelope gene in the brain of the rapid progressor and morphine-dependent g...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2008.0279
更新日期:2009-05-01 00:00:00
abstract::To investigate how human immunodeficiency virus type 1 (HIV-1) escapes from antibodies directed against the neutralization domain in the third variable region (V3) of gp120, we examined precisely which amino acid contributed to antibody binding. From six HIV-1-infected individuals, sequential sera were tested for anti...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1995.11.1153
更新日期:1995-10-01 00:00:00
abstract::HIV/hepatitis C virus (HCV) patients have a 3-fold increased fracture incidence compared to uninfected patients. The impact of HCV therapy on bone health is unclear. We evaluated bone turnover markers (BTM) in well-controlled (HIV RNA <50 copies/ml) HIV/HCV-coinfected patients who received pegylated interferon-α and r...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,随机对照试验
doi:10.1089/AID.2015.0204
更新日期:2016-04-01 00:00:00
abstract::Membrane-interactive phospholipids (PLs), previously evaluated for activity against HIV-1 in vitro, are known to affect late steps in viral replication. Studies were done to determine the effects of PL analogs on post-translational processing of HIV-1 proteins, binding of viral surface gp160/gp120 to CD4 receptor, and...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1995.11.705
更新日期:1995-06-01 00:00:00
abstract::The national incidence of epidemic Kaposi sarcoma (KS) has decreased dramatically since the availability of combined antiretroviral therapy. Despite national trends, we continue to see admissions for KS. Electronic medical records were queried to identify patients with HIV who were admitted with active KS between 2010...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2016.0141
更新日期:2017-06-01 00:00:00
abstract::Laboratory tests that can distinguish recent from long-term HIV infection are used to estimate HIV incidence in a population, but can potentially misclassify a proportion of long-term HIV infections as recent. Correct application of an assay requires determination of the proportion false recents (PFRs) as part of the ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2016.0203
更新日期:2017-06-01 00:00:00
abstract::Human T lymphotropic virus type I trans-activator Tax protein regulates expression of several cellular genes that are involved in cellular activation, proliferation, and transformation. Tax mediates its regulatory activity through interaction with cellular transcription factors such as members of the cAMP-responsive e...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299310728
更新日期:1999-06-10 00:00:00
abstract::Our goal has been to develop a safe and effective system that would allow us to explore the functions of the human immunodeficiency virus (HIV) envelope. We have generated a human lymphoid cell line (TF228.1.16) that stably expresses functional HIV envelope proteins on its cell surface, and therefore closely mimics th...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1993.9.23
更新日期:1993-01-01 00:00:00