Abstract:
:The human immunodeficiency virus-1 (HIV-1) Vpr protein plays multiple roles in HIV-1 replication. In early infection, Vpr provides help in the nuclear localization of pre-integration complex. Subsequently, Vpr induces cell cycle arrest of infected cells at G2/M phase. Cell cycle arrest facilitates higher rate of viral gene transcription. Vpr is also capable of activating transcription of viral and heterologous genes. Vpr induces apoptosis in infected cells leading to loss of immune cells and onset of clinical AIDS. Interestingly, Vpr is also considered as a passenger protein in the virus particles as it is incorporated into the virus particles through interaction with Gag. The structure of full length Vpr has been resolved recently through NMR. In this review, we have analysed the functions of Vpr using the available data from structural perspective. Packing of the three helices of Vpr around a core formed by hydrophobic side chains and integrity of helical domains are critical for Vpr functions. The distinct functions of Vpr have been attributed to structural integrity of different domains. The unique distribution of acidic and basic residues in Vpr is an interesting feature. Two hydrophobic pockets on the structure of Vpr are proposed to be important targets for modulating Vpr functions. The inter-relationship between different functions of Vpr is discussed in the context of structure. Based on bioinformatics analysis, we propose new targets for modulating Vpr functions, which need to be validated experimentally.
journal_name
Curr HIV Resjournal_title
Current HIV researchauthors
Pandey RC,Datta D,Mukerjee R,Srinivasan A,Mahalingam S,Sawaya BEdoi
10.2174/157016209787581508subject
Has Abstractpub_date
2009-03-01 00:00:00pages
114-28issue
2eissn
1570-162Xissn
1873-4251journal_volume
7pub_type
杂志文章,评审abstract::Immunization is an important measure to protect HIV-infected children and adults against certain vaccine preventable diseases. However, the antibody response, which is associated with the level of CD4+ T cell count, is frequently impaired in this group of patients. Certain vaccines enhance virus replication and transi...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162043351084
更新日期:2004-10-01 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: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:OBJECTIVE:The primary objective of this study was to estimate etravirine activity in a cohort of patients infected with non-B subtype HIV-1 and failing nevirapine-based therapy. MATERIALS AND METHODS:Genotypic resistance testing was performed if viral load was >OR= 1,000 copies/ml after receiving at least six months o...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016210791111098
更新日期:2010-04-01 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: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:BACKGROUND:Antiretroviral therapy (ART), especially with tenofovir disoproxil fumarate (TDF), has been associated with accelerated bone turnover and leads to significant bone loss. OBJECTIVE:We aimed to determine the effect of vitamin D2 and calcium on bone mineral density (BMD) in HIV-infected patients receiving TDF/...
journal_title:Current HIV research
pub_type: 临床试验
doi:10.2174/1570162X18666200106150806
更新日期:2020-01-01 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::Two HIV-1 non B isolates, 98US_MSC5007 and 98US_MSC5016, which have been identified amongst the US Army personnel serving abroad, are known to have originated from other nations. Notwithstanding, they are categorized as American strains. This is because their countries of origin are unknown. American isolates are basi...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x113119990046
更新日期:2013-06-01 00:00:00
abstract::VGV-1, a clinical-grade formulation of bovine thymus nuclear protein (TNP) has been demonstrated to possess anti-viral activity in HIV-1 patients in five clinical trials, one of which was placebo controlled double-blinded. However, to date molecular mechanisms remain to be identified. Using surface plasmon resonance w...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016208785132545
更新日期:2008-06-01 00:00:00
abstract::We recently described that the chloroxoquinolinic ribonucleoside 6-chloro-1,4-dihydro-4-oxo-1-(beta-D-ribofuranosyl) quinoline-3-carboxylic acid (compound A) inhibits the human immunodeficiency virus type 1 (HIV-1) enzyme reverse transcriptase (RT), and its replication in primary cells. Based on these findings, we per...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016209788347958
更新日期:2009-05-01 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::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:BACKGROUND:Non-alcoholic Fatty Liver Disease (NAFLD) is common in HIV-infected individuals. Liver biopsy remains the gold-standard procedure for the diagnosis of liver fibrosis, but both Transient Elastography (TE) and Non-invasive Biomarkers (NIBMs) have emerged as alternatives. OBJECTIVES:Our study's aim was to vali...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X17666190809153245
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVE:HIV lipodystrophy is characterised by abnormal adipose tissue distribution and metabolism, as a result of altered adipocyte function and gene expression. The protease inhibitor ritonavir is associated with the development of lipodystrophy. Quantifying changes in adipogenic gene expression in the presence of r...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x13666150806110238
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Suboptimal adherence to antiretroviral therapy (ART) is a strong predictor of virologic failure (VF) among people with HIV. Various methods such as patient self-report, pill counts and pharmacy refills have been utilized to monitor adherence. However, there are limited data on the accuracy of combining metho...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x1205141121102501
更新日期:2014-01-01 00:00:00
abstract::The HIV epidemic has resulted in medical, social and economic consequences. There is general agreement that a safe, effective and affordable preventive HIV vaccine is urgently needed to control the epidemic. To date, over 60 phase I/II trials of about 30 candidate vaccines have been conducted worldwide. In 1991, Thail...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162052772933
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Many HIV research projects are plagued by the high missing rate of selfreported information during data collection. Also, due to the sensitive nature of the HIV research data, privacy protection is always a concern for data sharing in HIV studies. METHODS:This paper applies a data masking approach, called t...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x13666151029102539
更新日期:2016-01-01 00:00:00
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:BACKGROUND:Whether HIV-positive injecting drug users (IDUs) are at higher risk of developing drug resistance mutations (DRMs) after methadone maintenance therapy (MMT) than any other HIV-positive population is unclear. OBJECTIVE:To compare the incidence of new DRMs in two population groups: antiretroviraltreatment (AR...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X18666200712173630
更新日期:2020-01-01 00:00:00
abstract::Human immunodeficiency virus type 1 (HIV) infects macrophages and microglia in the CNS and frequently causes neurocognitive impairment. Although antiviral therapy generally reduces the viral load in the CNS and improves HIV-associated neurological dysfunction, most current antiviral drugs have poor CNS penetrance and ...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016206777709500
更新日期:2006-07-01 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:We studied the clinical presentation, diagnosis, treatment outcome and survival in children with HIV and Tuberculosis (TB) co-infection. METHODS:All HIV infected children with symptoms or signs consistent with tuberculosis were screened. We studied 24 cases of culture confirmed TB from among a cohort of 213...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016207781662434
更新日期:2007-09-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to analyze the temporal trends of HIV epidemiology in Turkey from 2011 to 2016. METHODS:Thirty-four teams from 28 centers at 17 different cities participated in this retrospective study. Participating centers were asked to complete a structured form containing questions about epidem...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X18666200427223823
更新日期:2020-01-01 00:00:00
abstract::A major focus of HIV-1 vaccine development has been directed towards a limited number of broadly conserved epitopes in the Envelope (Env) proteins that are sensitive neutralization targets in many primary isolates. However, evidence suggests that these epitopes are poorly immunogenic; similar antibodies are rarely pro...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016207782418470
更新日期:2007-11-01 00:00:00
abstract:BACKGROUND:Previous studies have developed methodologies for predicting the number of CD4+ cells from the total leukocyte and lymphocytes count based on mathematical methodologies, obtaining percentages of effectiveness prediction higher than 90% with a value of less than 5000 leukocytes. OBJECTIVE:To improve the meth...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X17666190306125819
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:China has implemented a nation-wide policy to control mother-to-child transmission (MTCT) of the human immunodeficiency virus (HIV) since 2011, yet the efficacy of the control policy is less studied. The aim of the present study was to report the data in the prevention of MTCT of HIV in Nantong city, China. ...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X18666200810134025
更新日期:2020-01-01 00:00:00
abstract::Previous studies have demonstrated that nonnucleoside reverse transcriptase (RT) inhibitors (NNRTIs) act as chemical enhancers of human immunodeficiency virus type 1 (HIV-1) RT dimerization. In the current study, we sought to define the role of key residues (101, 103, 108, 181, 188, 190, 225 and 318) in the NNRTI-bind...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016208783885065
更新日期:2008-03-01 00:00:00
abstract::A current debate in the HIV-1 vaccine field concerns the ability of an immunodeficiency virus to elicit a protective response. One argument is that HIV-1 superinfections are frequent in healthy individuals, because virus evades conventional immune surveillance, a serious obstacle to vaccine design. The opposing argume...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016209789346255
更新日期:2009-09-01 00:00:00
abstract::The aim of the study was to report the epidemiological profile of HIV-1 positive patients from, Istanbul, Turkey, which has one of the lowest HIV-1/AIDS prevalences in Europe. The patients were followed by ACTHIV-IST group which was established by the Infectious Diseases Departments of five teaching hospitals (three u...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162x12666140411111803
更新日期:2014-01-01 00:00:00