Abstract:
:In HIV-1 infected cells, over 40 different mRNA species are produced by alternative splicing of the single HIV-1 primary RNA transcript. In addition, approximately half of the HIV-1 primary RNA transcripts are not spliced and are exported to the cytoplasm where they serve as mRNA and as genomic RNA. In this article, we will review current knowledge of the mechanisms by which the HIV-1 alternative splicing is regulated. Several negatively and positively-acting cis-acting elements have been detected within the viral genome that repress or facilitate viral RNA splicing by binding to cellular proteins. These include exonic splicing silencers (ESS) and an intronic splicing silencer (ISS) that are selectively bound either by members of the hnRNP A/B family (hnRNPs A1, A1(B), A2, and B1) or by hnRNP H. Exonic splicing enhancers (ESE) are also present within the HIV-1 genome and are selectively bound by members of the SR protein family. ESS and ISS repression mediated by hnRNP A/B proteins occurs at early steps of splicing, prior to formation of pre-spliceosome complexes. Current models propose that ESS elements promote cooperative binding of hnRNP A/B proteins to the exon and prevent efficient binding of essential cellular splicing factors to the 3' splice site. SR proteins bound to ESE elements that are juxtaposed or overlapping ESS elements may counteract this inhibition. We will review data indicating the importance of the HIV-1 splicing elements and their cognate binding proteins for efficient virus replication. Differences in cis-acting splicing elements between the group M (major) and group O (outlier) HIV-1 strains will also be discussed. Finally we will review evidence suggesting the possibility that there may be changes in regulation of HIV-1 alternative splicing in infected human T cells, human macrophages and rodent cells.
journal_name
Curr HIV Resjournal_title
Current HIV researchauthors
Stoltzfus CM,Madsen JMdoi
10.2174/157016206775197655keywords:
subject
Has Abstractpub_date
2006-01-01 00:00:00pages
43-55issue
1eissn
1570-162Xissn
1873-4251journal_volume
4pub_type
杂志文章,评审abstract:OBJECTIVES:The aim of the study was to investigate if the supplementation with multistrain probiotics may be able to modulate T cell response in HIV-1 infected patients and to evaluate the anti-HIV activity of probiotic by studying fecal water (FW) samples. METHODS:Three HIV-1-positive patients (Pt1, Pt2 and Pt3) on l...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X17666190903230622
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Genetic variations in Human leukocyte antigen C (HLA-C), Zinc ribbon domain containing 1 (ZNRD1) and its antisense RNA (ZNRD1-AS1) genes are known to influence the HIV-1 replication and disease progression. OBJECTIVE AND METHOD:We evaluated the distribution of HLA-C (rs10484554, rs9264942) and ZNRD1 (rs8321...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X15666170511141741
更新日期:2017-01-01 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:BACKGROUND:HIV-1+ long-term nonprogressors (LTNPs) maintain natural control of viral infection. This study sought to identify and characterize HIV- LTNPs series case, regarding the presence of possible host factors that may be associated with this status. METHODS:We evaluated the plasma levels of IP-10/IL-8 chemokines...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X16666171206120024
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Despite intense efforts, AIDS is difficult to tackle by current anti-retroviral therapy (ART) due to its side effects; therefore, there is an urgent need to discover potential, multitarget and low-cost anti-HIV compounds. OBJECTIVE:We have shown that few phytocompounds can potentially inhibit the prime targ...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X18666200129112509
更新日期:2020-01-01 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: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:BACKGROUND:Human immunodeficiency virus (HIV) infection is a global health burden which ultimately results in acquired immune deficiency syndrome (AIDS). There are multiple host factors which are capable of limiting HIV-1 replication. One of the most important host factors which inhibit HIV-1 DNA synthesis is the apoli...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X16666181018155827
更新日期:2018-01-01 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
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journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016207780077020
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND:Cytokines have been widely demonstrated to involve in the pathogenesis of AIDS and the mechanisms of antiretroviral therapy. Interleukin 27 (IL-27) is a new member of the IL-12 cytokine family and has been shown to interfere HIV-1 virus replication with controversial findings. This study is to investigate th...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X15666170517130339
更新日期:2017-01-01 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:Mother-to-child transmission of HIV-1 occurs in a minority of HIVinfected mother-infant pairs, even without any interventions. The mechanisms that protect the majority of HIV-exposed infants from infection are unclear. T regulatory cells (Treg) have important immunomodulatory functions, but their role in the...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X17666190213094624
更新日期:2018-01-01 00:00:00
abstract::Drug use and HIV/AIDS are global public health issues. The World Health Organization (WHO) estimates that up to 30% of HIV infections are related to drug use and associated behaviors. The intersection, of the twin epidemics of HIV and drug/alcohol use, results in difficult medical management issues for the health care...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016209788680598
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Despite decreasing rates of HIV among many populations, HIV-related health disparities among gay, bisexual and other men who have sex with men persist, with disproportional percentages of new HIV diagnoses among racial and ethnic minority men. Despite increasing awareness of HIV pre-exposure prophylaxis (PrE...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X16666180730144455
更新日期:2018-01-01 00:00:00
abstract::Although hepatitis B serology screening has been recommended for HIV care, it has not been routinely performed. We aimed to assess compliance and timing of hepatitis B serology screening among HIV-infected patients in a resource-limited setting. A cross-sectional study was conducted in Thailand. Compliance, timing of ...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016211794582669
更新日期:2011-01-01 00:00:00
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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::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
abstract:BACKGROUND:HIV-1 CRF55_01B was first reported in 2013. At present, no report is available regarding this new clade's polymorphisms in its functionally critical regions protease and reverse transcriptase. OBJECTIVE:To identify the diversity difference in protease and reverse transcriptase between CRF55_01B and its pare...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/1570162X18666200415140652
更新日期:2020-01-01 00:00:00
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journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016207781023965
更新日期:2007-07-01 00:00:00
abstract::Antigenic variation, which is the result of amino acid substitution and genetic evolution, poses a major challenge in the development of vaccines against pathogens with unstable genomes, such as HIV-1 and Influenza. Thus, it is highly important to characterize the relationship of genetic evolution, antigenic variation...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016207779316305
更新日期:2007-01-01 00:00:00
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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::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 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...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/157016209787581508
更新日期:2009-03-01 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::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:A vaccine able to elicit broadly neutralizing antibodies capable of blocking infection by global viruses has not been achieved, and remains a key public health challenge. OBJECTIVE:During infection, a robust strain-specific neutralizing response develops in most people, but only a subset of infected people ...
journal_title:Current HIV research
pub_type: 杂志文章,评审
doi:10.2174/1570162X15666171124122044
更新日期:2018-01-01 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:BACKGROUND:Multiple factors have been previously described which could influence adherence to HAART. Our objective is to determine the fundamental factors which influence adherence to highly active antiretroviral therapy in our population. METHODS:A cross-sectional study was made selecting 143 outpatients attending ou...
journal_title:Current HIV research
pub_type: 杂志文章
doi:10.2174/157016206776055075
更新日期:2006-04-01 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