HIV with multiple gene deletions as a live attenuated vaccine for AIDS.

abstract：:A higher functionality of CD8(+) T cells might contribute to low-level HIV replication in long-term nonprogressors (LTNPs). However, the contrary could also be true, being the function of CD8(+) T cells modulated by HIV replication. We tested whether enhanced HIV replication following antiretroviral therapy interrupti...

journal_title：AIDS research and human retroviruses

authors： López M,Rallón N,Soriano V,Rodríguez I,Valencia E,Labarga P,Moreno V,Vispo E,Roncal F,González-Lahoz J,Benito JM

更新日期：2008-09-01 00:00:00

abstract：:The human immunodeficiency virus type 1 (HIV-1) envelope glycoprotein is essential for virus entry and the formation of multinucleated giant cells by cell fusion, one of the major virus-induced cytopathic effects. To study the effects of potential fusion inhibitors, a vaccinia virus recombinant expressing the envelope...

journal_title：AIDS research and human retroviruses

authors： Owens RJ,Tanner CC,Mulligan MJ,Srinivas RV,Compans RW

更新日期：1990-11-01 00:00:00

abstract：:The Kento-Mwana project was carried out in Pointe Noire, Republic of the Congo, to prevent mother-to-child HIV-1 transmission. To determine the prevalence of different subtypes and transmitted drug resistance-associated mutations, 95 plasma samples were collected at baseline from HIV-1-positive naive pregnant women en...

journal_title：AIDS research and human retroviruses

authors： Bruzzone B,Saladini F,Sticchi L,Mayinda Mboungou FA,Barresi R,Caligiuri P,Calzi A,Zazzi M,Icardi G,Viscoli C,Bisio F

更新日期：2015-08-01 00:00:00

abstract：:Mutant HIV virions, encoding C-terminally truncated Env proteins, exhibit a cell-specific replication defect, i.e., they can replicate in a few T cell lines (termed permissive cells) but not in the majority of T cell lines (termed nonpermissive cells). We have studied the properties of two mutant virions (pNL-Tr712 an...

journal_title：AIDS research and human retroviruses

authors： Holtkotte D,Pfeiffer T,Bosch V

更新日期：2007-05-01 00:00:00

abstract：:The purpose of this study was to investigate the mechanism of acquired cellular resistance to AZT, a mechanism that has been described as a potential source of drug resistance in addition to viral mutations. To study this phenomenon the kinetics parameters of thymidine kinase (TK) activity have been defined in CEMazt,...

journal_title：AIDS research and human retroviruses

authors： Antonelli G,Turriziani O,Verri A,Narciso P,Ferri F,D'Offizi G,Dianzani F

更新日期：1996-02-10 00:00:00

abstract：:We aim to determine the prevalence of HIV nonsuppression and factors associated with it. This is a cross-sectional multicenter study carried out in January 2016 with data of the VACH Cohort, a registry participated by 23 hospitals from most regions of Spain. The prevalence of HIV nonsuppression, defined as HIV RNA ≥20...

journal_title：AIDS research and human retroviruses

authors： Roca B,Spanish VACH Cohort Group.

更新日期：2020-11-01 00:00:00

abstract：:Monocytes are known as an alternative target for HIV/SIV infection, but the contribution of monocytes to viral spread in a host is unclear. In this study, CD14 monocytes were monitored in 6 macaques until six weeks postinfection (wpi) with SIVmac239 to evaluate their contribution to viral load. The monocyte count in b...

journal_title：AIDS research and human retroviruses

authors： Kuwata T,Kodama M,Sato A,Suzuki H,Miyazaki Y,Miura T,Hayami M

更新日期：2007-03-01 00:00:00

abstract：:In October of 2019, researchers and community members from around the world met at the NIH for the fifth annual International Workshop on Microbiome in HIV. New research was presented on the role of the microbiome on chronic inflammation and vaccine design, interactions of genetics, environment, sexual practice and HI...

journal_title：AIDS research and human retroviruses

authors： Sherrill-Mix S,Connors K,Aldrovandi GM,Brenchley JM,Boucher C,Bushman FD,Collman RG,Dandekar S,Klatt NR,Lagenaur LA,Paredes R,Tachedjian G,Turpin JA,Landay AL,Ghosh M

更新日期：2020-11-01 00:00:00

abstract：:HIV-1 and HTLV-1 infect CD4(+) T lymphocyte but little is known about the impact of coinfection on patient's immune response. In this study we have evaluated the spontaneous production of interleukin (IL)-2, IL-4, IL-6, and IL-10 and interferon (IFN)-γ by unstimulated peripheral blood mononuclear cell (PBMC) cultures ...

journal_title：AIDS research and human retroviruses

authors： Abrahão MH,Lima RG,Netto E,Brites C

更新日期：2012-08-01 00:00:00

abstract：:There is little evidence comparing treatment outcomes between adolescents and other age groups, particularly in resource-limited settings. A retrospective analysis of data from seven HIV clinics across urban Gauteng (n=5) and rural Mpumalanga (n=2), South Africa was conducted. The analysis compared HIV-positive antire...

journal_title：AIDS research and human retroviruses

authors： Evans D,Menezes C,Mahomed K,Macdonald P,Untiedt S,Levin L,Jaffray I,Bhana N,Firnhaber C,Maskew M

更新日期：2013-06-01 00:00:00

abstract：:A primary concern of an antibody-based HIV-1 therapy is the virus' ability to rapidly escape antibody responses. Therefore, we investigated the relationships between antibody neutralization sensitivity, viral phenotype, and infectivity in 13 subtype C viruses using a HeLa transfectant-based assay. We observed that the...

journal_title：AIDS research and human retroviruses

authors： Moyo T,Guleid FH,Schomaker M,Williamson C,Dorfman JR

更新日期：2020-12-01 00:00:00

abstract：:Two commercially available expression vectors were modified to generate plasmids pGEXcPk and pQ9cPk. Proteins expressed from pGEXcPk and pQ9cPk had a short oligopeptide tag termed Pk at their carboxy termini and either glutathione S-transferase (GST) or a small histidine (His) tag, respectively, at their N termini. GS...

journal_title：AIDS research and human retroviruses

authors： Hanke T,Botting C,Green EA,Szawlowski PW,Rud E,Randall RE

更新日期：1994-06-01 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

authors： Padberg C,Nowlan S,Mermer B

更新日期：1989-02-01 00:00:00

abstract：:Mitochondrial impairment is reported in HIV-infected children receiving antiretroviral therapy (ART), as well as those naive to ART. Whether mitochondrial function recovers with early initiation of ART and sustained viral suppression on long-term ART is unclear. In this study, we evaluate mitochondrial markers in well...

journal_title：AIDS research and human retroviruses

authors： Shen J,Liberty A,Shiau S,Strehlau R,Pierson S,Patel F,Wang L,Burke M,Violari A,Coovadia A,Abrams EJ,Arpadi S,Foca M,Kuhn L

更新日期：2020-01-01 00:00:00

abstract：:We tested the effect of three linear or two loop peptides derived from the V3 region of the HTLV-III BH10 clone or the SF2 strain of human immunodeficiency virus type 1 on IL-2-driven T cell proliferation. V3-BH10, which consists of 42 amino acids and has a loop structure, suppressed IL-2-driven proliferation of all I...

journal_title：AIDS research and human retroviruses

authors： Sakaida H,Murakami T,Kawamata S,Hattori T,Uchiyama T

更新日期：1997-01-20 00:00:00

abstract：:HIV-1 CRF07_BC became prevalent in Taiwan after the epidemic among injection drug users (IDUs). We describe a unique recombinant form (URF) consisting of CRF01_AE and CRF07_BC (named URF_0107-H8) genes detected from an IDU. The 8.8 kb near full-length genome of URF_0107-H8 had a CRF01_AE backbone with two CRF07_BC fra...

journal_title：AIDS research and human retroviruses

authors： Lee NY,Wang JC,Lin YC,Wu CJ,Li CW,Li MC,Wang SW,Tseng FC,Ko WC

更新日期：2016-06-01 00:00:00

abstract：:CD4(+) T cell help is important for the functionality of CD8(+) cytotoxic T-lymphocytes (CTLs) in limiting viral replication and may contribute to mediation of apparent resistance to HIV-1 infection in exposed seronegative (ESN) individuals. Using five HIV-1 antigens in an intracellular cytokine assay, the presence of...

journal_title：AIDS research and human retroviruses

authors： Kebba A,Kaleebu P,Serwanga J,Rowland S,Yirrell D,Downing R,Gilmour J,Imami N,Gotch F,Whitworth J

更新日期：2004-01-01 00:00:00

abstract：:The concept that HIV causes AIDS only by directly killing CD4 cells has been questioned by a number of investigators. There has been experimental support for a number of indirect mechanisms such as apoptosis, anergy, superantigen-induced cell proliferation and depletion, defective signaling, molecular mimicry, and aut...

journal_title：AIDS research and human retroviruses

authors： Gougeon ML,Colizzi V,Dalgleish A,Montagnier L

更新日期：1993-03-01 00:00:00

abstract：:Subunit vaccines based on recombinant proteins have proved useful for inducing antibody responses and they are safe for widespread use because they do not contain any live components. Unfortunately, they do not typically induce the types of cell-mediated immune responses required to control viral pathogens; specifical...

journal_title：AIDS research and human retroviruses

authors： Newman MJ,Munroe KJ,Anderson CA,Murphy CI,Panicali DL,Seals JR,Wu JY,Wyand MS,Kensil CR

更新日期：1994-07-01 00:00:00

abstract：:Transmitted drug resistance (TDR) influencing nonnucleoside reverse transcriptase inhibitor (NNRTI) activity is increasing among new HIV-1 patients in several countries. As we recently observed an increase of K103N prevalence among new diagnoses in Belgium, we mined the Belgian national sequence database for homologou...

journal_title：AIDS research and human retroviruses

authors： Ruelle J,Ingels MG,Jnaoui K,Ausselet N,Vincent A,Sasse A,Verhofstede C,Goubau P

更新日期：2013-10-01 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

authors： Spruth M,Stoiber H,Kacani L,Schönitzer D,Dierich MP

更新日期：1999-04-10 00:00:00

abstract：:Reports indicate that myeloid and plasmacytoid dendritic cells (mDCs and pDCs), which are key effector cells in host innate immune responses, can be infected with HIV-1 and are reduced in number and function during the chronic phase of HIV disease. Furthermore, it was recently demonstrated that a sustained loss of mDC...

journal_title：AIDS research and human retroviruses

authors： Reeves RK,Wei Q,Stallworth J,Fultz PN

更新日期：2009-12-01 00:00:00

abstract：:The HIV-1 envelope glycoprotein complex (Env) can be stabilized by the introduction of a disulfide bond between the gp120 and gp41 subunits. The resulting protein is monomeric, but trimerization can be improved by the introduction of a single helix-breaking residue at the conserved Ile559 site in the N-terminal heptad...

journal_title：AIDS research and human retroviruses

authors： Sanders RW,Busser E,Moore JP,Lu M,Berkhout B

更新日期：2004-07-01 00:00:00

abstract：:Accurate methods for cross-sectional incidence estimation are needed for HIV prevention research. The Limiting Antigen Avidity (LAg-Avidity) assay has been marketed by two vendors, Maxim Biomedical and Sedia BioSciences Corporation. Performance differences between the two versions of the assay are unknown. We tested a...

journal_title：AIDS research and human retroviruses

authors： Schlusser KE,Konikoff J,Kirkpatrick AR,Morrison C,Chipato T,Chen PL,Munjoma M,Eshleman SH,Laeyendecker O

更新日期：2017-06-01 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

authors： da Costa LM,Raiol NC,Lisboa BLA,Frade PCR,Blandtt LDS,Silva-Oliveira GC,Machado LFA,Martins LC,Oliveira-Filho AB

更新日期：2019-09-01 00:00:00

abstract：:Lectins with specificity for terminal mannose residues and anti-mannan antibodies neutralize HIV-1 infection in vitro. This is assumed to be caused by binding of the agents to the viral glycoproteins. In this study we show that one such agent, the Galanthus nivalis lectin (GNA), also blocks infection at the target cel...

journal_title：AIDS research and human retroviruses

authors： Hammar L,Hirsch I,Machado AA,De Mareuil J,Baillon JG,Bolmont C,Chermann JC

更新日期：1995-01-01 00:00:00

abstract：:The gene encoding the major envelope glycoprotein of the HIV-SF2 isolate was engineered for the secretion of recombinant gp120 (rgp120SF2) from permanent Chinese hamster ovary (CHO) cell lines. Cellular production methods were scaled up and a method for purification of the secreted glycoprotein was devised. Mild purif...

journal_title：AIDS research and human retroviruses

authors： Scandella CJ,Kilpatrick J,Lidster W,Parker C,Moore JP,Moore GK,Mann KA,Brown P,Coates S,Chapman B

更新日期：1993-12-01 00:00:00

abstract：:Cell activation is essential for HIV infection. CD4+ T lymphocyte activation allows virus replication and CD8+ T lymphocyte activation may contribute to pathogenesis. We combined hydroxyurea, a cytostatic drug that inhibits cell activation and proliferation, with two drugs that inhibit HIV (didanosine and indinavir), ...

journal_title：AIDS research and human retroviruses

authors： Lori F,Jessen H,Lieberman J,Clerici M,Tinelli C,Lisziewicz J

更新日期：1999-05-01 00:00:00

abstract：:We investigated memory cytotoxic T lymphocyte (CTLm) responses to HIV-1 as a determinant of HIV-1 disease progression, in relation to plasma HIV-1 load and T lymphocyte numbers in a longitudinal study of 14 homosexual men with incident HIV-1 infection. Study participants were selected who exhibited failure of T cell h...

journal_title：AIDS research and human retroviruses

authors： Rinaldo CR Jr,Gupta P,Huang XL,Fan Z,Mullins JI,Gange S,Farzadegan H,Shankarappa R,Muñoz A,Margolick JB

更新日期：1998-11-01 00:00:00

abstract：:A model system was established for studies of humoral and cellular immunity to human immunodeficiency virus (HIV) antigens after vaccination. Macaques (Macaca fascicularis) were immunized with purified HIV, an infected cell extract rich in gp120 or polypeptides of cloned genes representing parts of p24, gp41, and gp12...

journal_title：AIDS research and human retroviruses

authors： Wahren B,Chiodi F,Ljunggren K,Putney S,Kurth R,Gallo RC,Fenyö EM

更新日期：1988-06-01 00:00:00