Abstract:
:Intensive antiretroviral therapy successfully suppresses viral replication but is unable to eradicate the virus. HIV persists in a small number of resting memory T cells where HIV has been transcriptionally silenced. This review will focus on recent insights into the HIV transcriptional control mechanisms that provide the biochemical basis for understanding latency. There are no specific repressors of HIV transcription encoded by the virus, instead latency arises when the regulatory feedback mechanism driven by HIV Tat expression is disrupted. Small changes in transcriptional initiation, induced by epigenetic silencing, lead to profound restrictions in Tat levels and force the entry of proviruses into latency. In resting memory T cells, which carry the bulk of the latent viral pool, additional restrictions, especially the limiting cellular levels of the essential Tat cofactor P-TEFb and the transcription initiation factors NF-κB and NFAT ensure that the provirus remains silenced unless the host cell is activated. The detailed understanding of HIV transcription is providing a framework for devising new therapeutic strategies designed to purge the latent viral pool. Importantly, the recognition that there are multiple restrictions imposed on latent proviruses suggest that proviral reactivation will not be achieved when only a single reactivation step is targeted and that any optimal activation strategy will require both removal of epigenetic blocks and the activation of P-TEFb.
journal_name
Curr HIV Resjournal_title
Current HIV researchauthors
Mbonye U,Karn Jdoi
10.2174/157016211798998736subject
Has Abstractpub_date
2011-12-01 00:00:00pages
554-67issue
8eissn
1570-162Xissn
1873-4251pii
BSP/CHIVR/E-Pub/00180journal_volume
9pub_type
杂志文章abstract:BACKGROUND:The change in the prevalence of hypogonadism with age in men with human immunodeficiency virus (HIV) infection is subject to debate. OBJECTIVE:To address this issue, we diagnosed hypogonadism based on serum levels of free testosterone (fTST) rather than total testosterone which is thought to be an inaccurat...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X18666200720000344
更新日期:2020-01-01 00:00:00
abstract::Premature immunosenescence has been reported in different HIV scenarios. However, how premature is the HIV-related immunosenescent phenotype is still unknown. Thus, the aim of this study was to analyze the immunosenescent status of young viraemic naive HIV-infected individuals, with less than four years from infection...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016211797636008
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Although HIV and injury contribute substantially to disease burdens in lowand middle-income countries (LMIC), their intersection is poorly characterized. OBJECTIVE:This systematic review assessed the prevalence and associated mortality impact of HIVseropositivity among injured patients in LMIC. METHODS:A s...
journal_title:Current HIV research
pub_type: 杂志文章,meta分析,评审
doi:10.2174/1570162X15666170920112743
更新日期:2017-11-23 00:00:00
abstract:OBJECTIVE:To evaluate the potential impact of the current global economic crisis (GEC) on the spread of HIV. DESIGN:To evaluate the impact of the economic downturn we studied two distinct HIV epidemics in Southeast Asia: the generalized epidemic in Cambodia where incidence is declining and the epidemic in Papua New Gu...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016209789973637
更新日期:2009-11-01 00:00:00
abstract::Several studies have suggested that aerobic physical activity is safe and beneficial for HIV-infected adults. However, there is information lacking regarding whether HIV-infected patients practice physical activity and to what extent. Therefore, the aim of this systematic review was to determine the prevalence of phys...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016212802429794
更新日期:2012-09-01 00:00:00
abstract::Passive immunization studies in non-human primates have established unequivocally that virus neutralization can prevent infection, providing the impetus for current intense efforts to identify immunogens that elicit broadly neutralizing antibodies in humans. Although Fc-mediated effector function may also contribute t...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162x113116660060
更新日期:2013-07-01 00:00:00
abstract::AIDS is a globalized infectious disease. In 2014, UNAIDS launched a global project of "90-90-90" to end the HIV epidemic by 2030. The second and third 90 require 90% of HIV-1 infected individuals receiving antiretroviral therapy (ART) and durable virological suppression. However, wide use of ART will greatly increase ...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X17666190927154110
更新日期:2019-01-01 00:00:00
abstract::Jembrana disease virus (JDV) is the most recently discovered member of the lentivirus family and causes an acute clinical disease in Bali cattle with a fatality rate of approximately 15%. It is genetically related to bovine immunodeficiency virus (BIV) to the extent that infections cannot yet be differentially diagnos...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016210790416370
更新日期:2010-01-01 00:00:00
abstract:OBJECTIVE:Identifying the genetic variability in vertically transmitted viruses in early infancy is important to understand the disease progression. Being important in HIV-1 disease pathogenesis, vpu gene, isolated from young infants was investigated to understand the viral characteristics. METHOD:Blood samples were o...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X16666180219154601
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Over the years, numerous studies have been carried out demonstrating the role of antibodies in HIV control leading to the development of antibody-based therapeutic and prophylactic strategies. OBJECTIVE:The objective of this review is to provide updated information on the role of antibodies in the preventio...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162x14999160224103320
更新日期:2016-01-01 00:00:00
abstract::Human immunodeficiency virus has evolved several redundant mechanisms to remove its receptor, the CD4 molecule, from the cell surface. Indeed, HIV-1 encodes three proteins, Nef, Vpu and Env, that have a profound effect on CD4 trafficking and catabolism. Given this functional convergence, it is believed that cell surfa...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162043485086
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Human milk banking has been promoted to provide donated breast milk for at-risk children whose mothers cannot breastfeed them but this effort was hindered by the advent of HIV epidemic. OBJECTIVE:To estimate the seroprevalence of HIV, syphilis and hepatitis B in the blood of human milk donors registered in ...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X15666170707143541
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:The emergence of drug-resistant viral strains has created the need for the development of novel anti-HIV agents with a diverse structure that targets key enzymes in the HIV lifecycle. OBJECTIVE:Considering the pharmacophore of integrase inhibitors, one of the validated targets for anti-HIV therapy, we desig...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X17666191210105809
更新日期:2020-01-01 00:00:00
abstract::To promote the initiation of reverse transcription, the HIV-1 virus uses a host tRNA as a primer, tRNA(3Lys). The annealing of tRNA(3Lys) to the viral RNA requires the breaking of the 3D structure of the tRNA and RNA rearrangements, to form a stable initiation complex recognised by the reverse transcriptase. The annea...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162053506919
更新日期:2005-04-01 00:00:00
abstract::Recently, a mechanism of negative regulation of immune responses by a specialized population of so-called regulatory T cells (Tregs) has become a focus of intense investigation. Through the discovery of transcription factor Foxp3 as a central molecular determinant of Tregs differentiation and function, the complex bio...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016210791208613
更新日期:2010-06-01 00:00:00
abstract::Beta defensins are antimicrobial peptides that serve to protect the host from microbial invasion at skin and mucosal surfaces. Here we explore the relationships among beta defensin levels, total bacterial colonization, and colonization by bacterial vaginosis (BV)-related bacteria and lactobacilli in the female genital...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016212802429848
更新日期:2012-09-01 00:00:00
abstract:PURPOSE:Switch to unboosted atazanavir (ATV) is an attractive option due to convenience and tolerability in HIV-positive patients. With limited available data we investigated the determinants of long-term efficacy and the consequences of virological failure of unboosted atazanavir-based regimens. METHODS:Retrospective...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x12666140807151616
更新日期:2014-01-01 00:00:00
abstract::Low levels of plasma viremia (below 50 copies/ml of HIV-1 RNA) can be detected in the majority of HIV+ subjects successfully treated with HAART. Aim of our study was to evaluate the impact of different antiretroviral regimens on this residual viremia and on proviral HIV-1 DNA in HAART-treated subjects with plasma HIV ...
journal_title:Current HIV research
pub_type: 杂志文章,多中心研究
doi:10.2174/157016208784325010
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND:Manipur is one of the highest HIV prevalence states of India because of its geographical location at the international border near the golden triangle of South-East Asia, but no study on drug resistance associated mutations (DRAMs) has been reported yet. OBJECTIVE:A population-based study on DRAMs of HIV-1 ...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x14666160401131426
更新日期:2016-01-01 00:00:00
abstract::Interleukin 7 (IL7) is a critical factor for lymphocyte homeostasis. A dysfunction of the IL7/IL7R pathway has previously been described in HIV-1 infection, and promising results were observed in recent analyses of IL7 for therapeutic use in HIV infected individuals. However, further investigations are still warranted...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016212799937209
更新日期:2012-03-01 00:00:00
abstract::The human immunodeficiency virus (HIV) is unique in its capacity to produce chronic disease in almost all infected hosts. To accomplish this, it has evolved multiple mechanisms to effectively evade the immune response. HIV encodes at least one protein that makes infected cells resistant to CTL killing by downmodulatin...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162033352138
更新日期:2003-01-01 00:00:00
abstract::Among HIV positive patients, Fine needle aspiration cytology (FNAC) or biopsy for diagnosis of tuberculous lymphadenopathy is often avoided due to an unspoken stigma. Earlier, we had developed a clinical scoring scale for the diagnosis of tuberculous lymphadenitis (TBLN), which had 88% sensitivity and detected no fals...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016206778560009
更新日期:2006-10-01 00:00:00
abstract::HIV-associated neurocognitive disorders (HAND) remain prevalent despite effective combined anti-retroviral therapy (cART). Cognitive function has been shown to inversely correlate with decreased synaptic and dendritic density. In this study, macaques inoculated with SIV were examined over a 3-month course of infection...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x1131100049
更新日期:2013-06-01 00:00:00
abstract::According to the World Health Organization's 2007 estimates, close to 33 million people worldwide are living with HIV/AIDS. Over the past two decades, significant progress has been made in understanding HIV pathogenesis and disease progression, which has allowed the identification of a multitude of drug and vaccine ta...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016208785861159
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVE:There is scarce information about the molecular epidemiology of HIV-infection in Armenia (former USSR). The objective of this work was to estimate the distribution of HIV-1 subtypes in this country and get any information about HIV drug resistance in naÏve patients. DESIGN:A joint study involving 78 patients...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x13666150407142834
更新日期:2015-01-01 00:00:00
abstract::In HIV-1, tRNA(Lys3) serves as the primer for reverse transcriptase, and during viral assembly, the tRNA(Lys) isoacceptors, tRNA(Lys1,2) and tRNA(Lys3), are selectively packaged into the virion. In this review, we shall first discuss the evidence for the formation of a tRNA(Lys) packaging complex, whose components inc...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162043484988
更新日期:2004-04-01 00:00:00
abstract::The development of pre-exposure prophylactics or microbicide products for the reduction or elimination of the sexual transmission of HIV has numerous challenges or barriers to success. Historically traditional dosage forms such as gels have been developed in the field but more recently controlled release dosage forms ...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016212799304599
更新日期:2012-01-01 00:00:00
abstract::Natural or experimental infection of the African sooty mangabey (SM) with the simian immunodeficiency virus (SIV) results in chronic high levels of virus replication but is associated with none of the debilitating immunopathology, including the marked CD4 T-cell depletion, persistent cell activation and acquired immun...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016209787048465
更新日期:2009-01-01 00:00:00
abstract::To assess the correlation between HIV-1 RNA load in blood and semen by antiretroviral therapy status and the relative penetration of antiretroviral drugs in seminal plasma. We performed a cross-sectional cohort study of 119 HIV-1 subjects divided into three groups according to treatment status. Blood and semen were co...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016208785861177
更新日期:2008-09-01 00:00:00
abstract::Antiretroviral (ARV) prophylaxis for prevention of mother to child transmission (MTCT) of HIV could affect hemoglobin (Hb) development of infants. A cross-sectional descriptive study was conducted in 24 HIV-infected and 21 HIV-uninfected pregnancies. ARV drugs were administered to HIV-infected pregnancies at 21 weeks ...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x12666140713170800
更新日期:2014-01-01 00:00:00