Abstract:
:The mechanisms responsible for the hematopoietic failure in human immunodeficiency virus type 1 (HIV-1)-infected patients are still unknown. Several findings indicate that the in vitro proliferative potential of precursor cells from AIDS patients is reduced. The changes seen in bone marrow (BM) morphology and the defective BM functions associated with cytopenias have both been proposed as potential explanations. In patients treated with highly active antiretroviral therapy (HAART) an immune reconstitution associated with increased whole blood cell counts has been described. We have investigated the effects of HAART on the number of colony-forming cells (CFCs) and long-term culture-initiating cells (LTC-ICs), using long-term BM cell cultures (LTBMC) in a group of subjects with HIV-1 infection enrolled in an open study to evaluate the mechanisms of immune reconstitution during HAART. In each patient, the increase in colony growth was homogeneous, regardless of the type of hematopoietic progenitor cells assayed; in four subjects an increase in the most primitive progenitor cells (LTC-ICs) was observed. These findings were associated with the in vivo data showing increased numbers of BM mononuclear cells (BMMCs) after HAART and with a rise in peripheral CD4(+) T cell counts and decreased levels of plasma HIV-1 RNA. A decreased number of hematopoietic progenitor cells and/or a defective modulation of progenitor cell growth might be the cause of the hematological abnormalities in AIDS patients. Controlling HIV-1 replication by HAART could determine a restoration of stem cell activity, probably because of the suppression of factors that inhibit normal hematopoiesis.
journal_name
AIDS Res Hum Retrovirusesjournal_title
AIDS research and human retrovirusesauthors
Isgrò A,Mezzaroma I,Aiuti A,De Vita L,Franchi F,Pandolfi F,Alario C,Ficara F,Riva E,Antonelli G,Aiuti Fdoi
10.1089/088922200750005994subject
Has Abstractpub_date
2000-10-10 00:00:00pages
1471-9issue
15eissn
0889-2229issn
1931-8405journal_volume
16pub_type
杂志文章abstract::The predictive value of virological response to lopinavir (LPV)/ritonavir (r) was assessed in 126 HIV-infected patients who failed antiretroviral therapy and had begun a rescue intervention based on LPV/r. At 3 months, subjects with < or =6 protease (PRO) resistance mutations showed a higher rate of virological respon...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922204322996509
更新日期:2004-03-01 00:00:00
abstract::Most viral vaccines currently in use in humans are live attenuated strains of virus that lack pathogenic potential. In general, such live attenuated vaccines induce the strongest longest-lasting immunity. Live attenuated strains of human immunodeficiency virus type 1 (HIV-1) have not been previously considered as vacc...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,评审
doi:10.1089/aid.1992.8.411
更新日期:1992-03-01 00:00:00
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::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::We performed a placebo-controlled study to evaluate the effects of immunomodulatory treatment with thalidomide on HIV levels, TNF-alpha levels, and immune status of 31 HIV-infected individuals, after temporary suppression of viral replication with antiretroviral drugs. Treatment with a combination of zidovudine and la...
journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1089/088922299310269
更新日期:1999-09-01 00:00:00
abstract::An observational, prospective, longitudinal cohort study was performed at the AIDS Clinic of a tertiary care institution in Mexico City to determine the association of viral load (VL) and CD4+ lymphocyte kinetics with the development of oral candidosis (OC) and hairy leukoplakia (HL). Participants were HIV-infected ad...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2005.21.981
更新日期:2005-12-01 00:00:00
abstract::Non-B HIV-1 viruses are predominant in developing countries where access to antiretroviral drugs (ARVs) is progressively being intensified. It is important to obtain more data on the susceptibility of these viruses to available ARVs. CRF01_AE, CRF02_AG, and subtype C strains of HIV-1 obtained from untreated patients f...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.22.357
更新日期:2006-04-01 00:00:00
abstract::Studies of HIV molecular evolution and pathogenesis have relied on the polymerase chain reaction (PCR) to provide sequence information from infected tissues. Until recently, studies have been constrained by the limited length of fragments that can be reliably amplified. The addition of a thermostable 3'-exonuclease ac...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1996.12.303
更新日期:1996-03-01 00:00:00
abstract::Several reports have suggested an increased prevalence of osteopenia and osteoporosis in HIV-infected individuals. Vitamin D deficiency may be a risk factor for osteoporosis and bone fractures. We aimed to determine the prevalence of vitamin D insufficiency in an outpatient HIV clinic in Boston. We collected serum lev...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2008.0183
更新日期:2009-01-01 00:00:00
abstract::HTLV-II-specific antibodies, with patterns similar to those in the Americas, were present in sera collected about 1970 from Bambuti pygmies in Zaire (14/102; 14%) and from pygmies in Cameroon (5/214; 2.3%), and were more prevalent than HTLV-I. In the Central African Republic, 504 pygmies were HTLV negative. After find...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1993.9.709
更新日期:1993-08-01 00:00:00
abstract::We set out to investigate whether there are clinically significant consequences when children with perinatal exposure to single-dose nevirapine are initiated on a nonnucleoside reverse transcriptase inhibitor (NNRTI) containing a highly active antiretroviral therapy (HAART) regimen. We carried out a chart and database...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2009.0054
更新日期:2009-10-01 00:00:00
abstract::HIV type 1 (HIV-1) envelope glycoproteins (Env) mediate virus entry and are the target of neutralizing antibodies. Binding of the metastable HIV-1 Env trimer to the CD4 receptor triggers structural rearrangements that mediate Env conformational transitions from a closed conformation to a more open state through an int...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,评审
doi:10.1089/AID.2018.0102
更新日期:2018-09-01 00:00:00
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 supp...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922201753342031
更新日期:2001-11-20 00:00:00
abstract::The HIV epidemic in Russia, one of the world's fastest growing, has been concentrated mostly among people who inject drugs (PWID). We sought to explore the epidemiology of the epidemic in St. Petersburg by sampling from the highest risk groups of PWID and men who have sex with men (MSM) and use viral sequencing data t...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2014.0150
更新日期:2015-06-01 00:00:00
abstract::We previously reported that passive transfer of a murine V3-specific monoclonal antibody (BAT123) to hu-PBL-SCID mice challenged with HIV-1LAI confers postexposure protection from infection. The role of the Fc fragment of this antibody as well as the involvement of the complement system in protection were evaluated in...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1998.14.205
更新日期:1998-02-10 00:00:00
abstract::The presence of transmitted drug-resistant HIV-1 (TDR) at the time of antiretroviral therapy (ART) initiation is associated with failure to achieve viral load suppression. Rates of TDR in ART-naive patients have been reported from various parts of the world through ongoing national, regional, and global evaluations; h...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2011.0386
更新日期:2013-02-01 00:00:00
abstract::A total of 110 HIV-1-positive samples obtained in 1997 (n = 44) and 2000 (n = 66) were genetically characterized in the V3-V5 envelope region and the p24 gag region. The majority of the strains were CRF02-AG (54.3%) or CRF06-cpx (18.1%) in env and gag. More than 9% of the samples were recombinants between CRF02 and CR...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922202760072357
更新日期:2002-07-01 00:00:00
abstract::Abstract The effectiveness of any biomedical prevention technology relies on both biological efficacy and behavioral adherence. Microbicide trials have been hampered by low adherence, limiting the ability to draw meaningful conclusions about product effectiveness. Central to this problem may be an inadequate conceptua...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2013.0099
更新日期:2014-01-01 00:00:00
abstract::Interferon-α (IFN-α) plays a vital role in combating viral infections especially in the early control after infection. However, the HIV infection has shown substantial level of suppression of IFN-α secretion during initial phase of infection. The reasons behind this impairment are still obscure. As plasmacytoid dendri...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2018.0136
更新日期:2019-01-01 00:00:00
abstract::AIDS is inexorably involving all parts of the country and all strata of society, with 10% of the urban and 3% of the rural population infected with HIV. It is increasingly a disease of women and children. The major cofactors for transmission are also sexually transmitted. For most developing countries, in spite of all...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1992.8.1535
更新日期:1992-08-01 00:00:00
abstract::Inhibitory factors to human immunodeficiency virus type 1 (HIV-1) in saliva may be responsible for the infrequent isolation of virus from saliva and also may account for the marked infrequency of salivary and/or oral transmission of HIV-1. Incubation of HIV-1 with human saliva followed by addition of the mixture to su...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1990.6.1425
更新日期:1990-12-01 00:00:00
abstract::Eight fragments derived from the HIV-1 pol gene were expressed as recombinant polypeptides in Escherichia coli. The fragments were from the portion of the pol gene that encodes the reverse transcriptase. The expressed peptides were analyzed immunologically with sera from HIV-1-infected individuals. Three distinct immu...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1989.5.61
更新日期:1989-02-01 00:00:00
abstract::Using human macrophage hybridomas infected with HIV-1, we investigated monocyte function over a 5-week period after HIV-1 infection. Two clones, 63 and 30, were infected with HIV-1IIIB. Infection was documented by RT activity (15 x 10(6) cpm/ml), intracytoplasmic staining with an anti-p24 antibody, in situ hybridizati...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1993.9.657
更新日期:1993-07-01 00:00:00
abstract::Given the rising HIV incidence in men who have sex with men (MSM) despite repeatedly proven effectiveness of oral HIV pre-exposure prophylaxis, behaviorally congruent periodic dosing strategies, such as dosing microbicides as lubricants, are now in demand. Rectal microbicide gel studies largely administer gels using v...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2016.0318
更新日期:2017-08-01 00:00:00
abstract::Acquisition of cellular proteins by HIV-1 virions is known to alter the physiology of the virus in vitro. Reported studies of this aspect have been largely limited to transformed T cell lines. In this study, we investigated the incorporation of major histocompatibility antigens (HLAs) on a primary macrophage-tropic is...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299311682
更新日期:1999-01-01 00:00:00
abstract::In HIV-infected persons, certain HLA class I alleles are associated with effective control of viremia, while others are associated with rapid disease progression. Among the most divergent clinical outcomes are the relatively good prognosis in HLA-B*5801 expressing persons and poor prognosis with HLA-B*5802. These two ...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2007.0124
更新日期:2008-01-01 00:00:00
abstract::The feline immunodeficiency virus (FIV) Rev protein and its cognate sequence the Rev response element (RRE) are essential for virus replication. Thus, the inhibition of either Rev or RRE function can significantly inhibit FIV replication. In the present study, we constructed a ribozyme that targets the RRE sequence an...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1997.13.1333
更新日期:1997-10-10 00:00:00
abstract::This study determined the prevalence of human immunodeficiency virus (HIV) infection and its associated factors in female sex workers (FSWs) from the municipality of Bragança in the state of Pará, Brazil. A cross-sectional study using a respondent-driven sampling method was used to investigate 137 FSWs. They were inte...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2019.0032
更新日期:2019-09-01 00:00:00
abstract::The gag-homologous region of the human endogenous retrovirus K10 (HERV-K10) was amplified by PCR from human genomic DNA and was analyzed by DNA cloning, sequencing, and expression of open reading frames in the prokaryotic pATH expression system. The analysis of genomic DNA of three donors provided evidence that HERV-K...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1993.9.343
更新日期:1993-04-01 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