Abstract:
:Natural polymorphisms of HIV-1, often associated with drug resistance, are widely described in protease and reverse transcriptase regions but data on their presence in the integrase region, especially in non-B subtypes, are still very limited. We aimed to characterize naturally occurring polymorphisms in the integrase region in 104 treatment-naive and 10 treatment-experienced patients infected predominantly with HIV-1 CRF06_cpx and its recombinant with subtype A1 and/or CRF03_AB viruses. No primary drug resistance mutations against integrase inhibitors were found, but resistance-associated polymorphisms such as V72I, L74I, V201I, and T206S were seen in more than 90% of viruses. Substitutions E157Q and E157K, associated with raltegravir resistance, were found in only two CRF06_cpx strains. We conclude that similar to other HIV-1 non-B subtypes, the CRF06_cpx and its recombinants with subtype A1 and CRF03_AB are rich in integrase region natural polymorphisms, which may impact the development of resistance against integrase inhibitors.
journal_name
AIDS Res Hum Retrovirusesjournal_title
AIDS research and human retrovirusesauthors
Avi R,Huik K,Sadam M,Karki T,Krispin T,Ainsalu K,Paap P,Schmidt J,Nikitina N,Lutsar Idoi
10.1089/aid.2010.0097subject
Has Abstractpub_date
2010-10-01 00:00:00pages
1109-13issue
10eissn
0889-2229issn
1931-8405journal_volume
26pub_type
杂志文章abstract::A new model system is delineated that will enable study of CD4 cofactors and gp120 binding proteins other than CD4. We have previously described a nontransformed rat fibroblast cell line that can efficiently produce HIV-1 upon transfection with an HIV-1 infectious clone, in contrast to other nonhuman mammalian cell li...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1996.12.1315
更新日期:1996-09-20 00:00:00
abstract::Maraviroc (MVC) is an allosteric inhibitor of human immunodeficiency virus type 1 (HIV-1) entry, and is the only CCR5 antagonist licensed for use as an anti-HIV-1 therapeutic. It acts by altering the conformation of the CCR5 extracellular loops, rendering CCR5 unrecognizable by the HIV-1 envelope (Env) glycoproteins. ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2017.0097
更新日期:2017-12-01 00:00:00
abstract::The membrane glycolipids galactosylceramide (GalCer) and sulfatide (SGalCer) have been reported to act as receptors of human immunodeficiency virus (HIV) on CD4- cell lines. We show here that these glycolipids are present on CD4+ cells purified from human blood and on in vitro-differentiated monocyte-derived macrophag...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1996.12.695
更新日期:1996-05-20 00:00:00
abstract::Antibodies (Abs) against HLA and other cell surface molecules, which HIV-1 acquires during the budding process at the host cell surface, neutralize HIV-1 in vitro. Macaques were protected against infection by SIV grown in human cells after xenoimmunization with human MHC molecules. Besides the immune responses arising...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299311051
更新日期:1999-04-10 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1989.5.279
更新日期:1989-06-01 00:00:00
abstract::An atypical HIV-1 strain (CAM001) was identified in a pregnant Cameroonian woman in 1995. HMA subtyping of the env region was unsuccessful, and sequence analyses were performed. Unique sequence motifs were found at the V3 tip (GAGRALHA and GAGRAWIHA), and phylogenetic studies showed that the env C2-V5 sequence branche...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299309883
更新日期:1999-11-20 00:00:00
abstract::The human endogenous retrovirus, type K (HERV-K) represents the most biologically active form of known retroelements present in the human genome. Several HERV-K genomes have transcriptionally active open reading frames and encode their own protease (PR). The HERV-K PR has been shown to authentically cleave human immun...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922200750054701
更新日期:2000-12-10 00:00:00
abstract::Here we report the construction, sequencing, and biological characterization of a molecular clone of HIV-1(92UG001), a virus representative of subtype D strains circulating in Uganda. The virus produced by the clone has an aggressive syncytium-inducing phenotype, which matches that of the parental virus. This phenotyp...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922202753394754
更新日期:2002-01-01 00:00:00
abstract::The Brazilian AIDS epidemic is characterized by significant geographic contrasts: a reduction in incidence and mortality in the epicenter (southeast) and an increase in the northeast. HIV-1-transmitted drug resistance (TDR) and genetic diversity were investigated among 106 antiretroviral (ARV)-naive patients from Mara...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2014.0261
更新日期:2015-02-01 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2015.0246
更新日期:2016-06-01 00:00:00
abstract::Human immunodeficiency virus type-1 (HIV-1) is a leading cause of mortality and morbidity in the world, with almost 46 million people infected globally. HIV-1 subtype C accounts for 55% of these infections. In Zambia, the majority of HIV-1 infections are subtype C. However, to its north most countries have non-subtype...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2005.21.901
更新日期:2005-10-01 00:00:00
abstract::A potential strategy to combat the worldwide AIDS epidemic is to develop a vaginal microbicide that prevents the sexual transmission of HIV-1. One approach for preventing vaginal HIV transmission is to block the viral coreceptor CCR5 with naturally occurring chemokine ligands. In this study, we used a cynomolgus macaq...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.0076
更新日期:2007-01-01 00:00:00
abstract::The U.S. military represents a unique population within the human immunodeficiency virus 1 (HIV-1) pandemic. The last comprehensive study of HIV-1 in members of the U.S. Navy and Marine Corps (Sea Services) was completed in 2000, before large-scale combat operations were taking place. Here, we present molecular charac...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2013.0087
更新日期:2013-10-01 00:00:00
abstract::HIV-1 group N (HIV-1/N) remains rare and mainly restricted to Cameroon. In this study, we report a new HIV-1/N infected case identified during routine HIV screening activities in Yaounde. The genetic characterization of the near full-length genome of this virus strain revealed that it is genetically distinct to all HI...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2018.0015
更新日期:2018-07-01 00:00:00
abstract::Persons living with HIV (PLWH) with substance use disorders (SUD) remain a population difficult to engage in HIV care. Project HOPE (Hospital Visits as an Opportunity for Prevention and Engagement), a randomized controlled trial testing patient navigation with/without contingency management for PLWH with SUD, aimed to...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2019.0153
更新日期:2020-05-01 00:00:00
abstract::In this report we have highlighted only a few examples of the extensive efforts underway to better understand the process of HIV pathogenesis, to develop new therapeutic agents to inhibit virus replication, and to identify strategies to restore damage done to the immune system during HIV disease progression. It is exp...
journal_title:AIDS research and human retroviruses
pub_type:
doi:10.1089/aid.1996.12.859
更新日期:1996-07-01 00:00:00
abstract::Aging with HIV poses unique and complex challenges, including avoidance of neurocognitive disorder. Our objective here is to identify the prevalence and predictors of successful cognitive aging (SCA) in a sample of older adults with HIV. One hundred three HIV-infected individuals aged 50 and older were recruited from ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2016.0189
更新日期:2017-02-01 00:00:00
abstract::Lentivirus infections are characterized by a dramatic loss of mucosal CD4(+) T cells, breakdown of the gut mucosa, and subsequent chronic immune activation. Residual immune activation persists even in patients controlling virus replication and remains a significant source of ongoing disease morbidities, but the causes...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2014.0174
更新日期:2014-12-01 00:00:00
abstract::Patients with HIV-1 and human T-lymphotropic virus type 2 (HTLV-2) coinfections often exhibit a clinical course similar to that seen in HIV-1-infected individuals who are long-term nonprogressors. These findings have been attributed in part to the ability of HTLV-2 to activate production of antiviral chemokines and to...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2013.0027
更新日期:2013-07-01 00:00:00
abstract::HIV-1 outbreaks in Guangxi Province, southern China were initiated from two separate border cities in 1996 and 1997. Drug users in Pingxiang City, which borders Vietnam, were infected with CRF01_AE HIV-1, and drug users in Baise City, which borders Yunan Province, were infected with a novel B/C recombinant HIV-1. Sinc...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/08892220252779719
更新日期:2002-01-20 00:00:00
abstract::HIV-1-infected patients develop a generalized vasculopathy that is clinically most evident as Kaposi's sarcoma (KS), a multifocally appearing endothelial cell-derived tumor. Fibroblast growth factor 2 (FGF-2) is a potent autocrine and paracrine mitogen of endothelial cells and has been implicated in the cell prolifera...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922201300343717
更新日期:2001-07-20 00:00:00
abstract::Although suppression of HIV-1 RNA below the limit of detection is associated with optimal outcomes, many patients can maintain or increase their CD4(+) count for prolonged time periods in the presence of persistent low-level viremia. We followed seven patients with prolonged (>5 years) discordant CD4(+)/viral load (VL...
journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章
doi:10.1089/aid.2005.21.13
更新日期:2005-01-01 00:00:00
abstract::In this study, the relationship between biological phenotypes, coreceptor usages, and sequence patterns of V1V2 or V3 regions on HIV-1 envelope gp 120 was carefully analyzed based on the existing isolates in the Los Alamos National Laboratory sequence database. Obviously, SI/NSI phenotypes were closely linked to the c...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2005.21.234
更新日期:2005-03-01 00:00:00
abstract::Human T-lymphotrophic virus type II (HTLV-II) has not yet been associated with any disease. Little is known about the proviral loads of HTLV-II in vivo and its relationship, if any, to lack of pathogenicity. We determined the HTLV-II proviral copy number in peripheral blood lymphocyte (PBL) samples from 49 HTLV-II-inf...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1995.11.1235
更新日期:1995-10-01 00:00:00
abstract::Extensive studies have been carried out on native Amerindian populations living in French Guiana in an attempt to detect human T cell leukemia virus type 2 (HTLV-2). However, the first strain of this virus identified in this region was not detected in these populations, but in a Brazilian woman of Amerindian origin. C...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/08892220151126689
更新日期:2001-04-10 00:00:00
abstract::It is known that transmitted drug resistance (TDR) will most likely emerge in regions where antiretroviral therapy (ART) has been widely available for years. However, after a decade of rapid scale-up of ART in China, there are few data regarding TDR among HIV-infected patients prior to initiating first-line ART in Chi...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2012.0164
更新日期:2012-12-01 00:00:00
abstract::Monoclonal antibodies (mAbs) specific for CD4 are potent inhibitors of HIV replication in vitro. These agents may be useful prophylactically or in chronic HIV infection if they can be administered without inducing immunosuppression. In the present study, we explored the safety of a CD4-specific murine mAb in rhesus mo...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1993.9.199
更新日期:1993-03-01 00:00:00
abstract::It became evident that tenofovir DF (TDF) causes a modest and gradual decline in GFR, however, the impact of long-term use of TDF on tubular function has not been fully evaluated. In 40 patients treated with TDF and 23 patients treated with other NRTIs, urine beta(2)-microglobulin (U-BMG), percentage tubular reabsorpt...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2008.0202
更新日期:2009-04-01 00:00:00
abstract::We have determined that polymeric IgA in saliva of HIV-1-uninfected individuals binds in varying degrees to components of culture supernatants containing HIV-1 recombinant proteins when ELISA is used for the determination. This finding did not extend to salivary IgG antibodies. Further, such problems were not encounte...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922200309016
更新日期:2000-04-10 00:00:00
abstract::In order to further characterize the interaction of human immunodeficiency viruses (HIV) with the CD4 receptor at the molecular level, a binding test was performed using iodine-labeled glycoproteins, 125I-gp160 from HIV-1 and 125I-gp140 from HIV-2, to bind to lymphoid cells expressing the CD4 receptor. The inhibition ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1992.8.565
更新日期:1992-05-01 00:00:00