2008
Vaccine Protection by Live, Attenuated Simian Immunodeficiency Virus in the Absence of High-Titer Antibody Responses and High-Frequency Cellular Immune Responses Measurable in the Periphery
Mansfield K, Lang S, Gauduin M, Sanford H, Lifson J, Johnson R, Desrosiers R. Vaccine Protection by Live, Attenuated Simian Immunodeficiency Virus in the Absence of High-Titer Antibody Responses and High-Frequency Cellular Immune Responses Measurable in the Periphery. Journal Of Virology 2008, 82: 4135-4148. PMID: 18272584, PMCID: PMC2292994, DOI: 10.1128/jvi.00015-08.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, ViralInterferon-gammaIntestinal MucosaLymphoid TissueMacaca mulattaNeutralization TestsRetroviridae ProteinsRNA, ViralSAIDS VaccinesSequence DeletionSimian Acquired Immunodeficiency SyndromeSimian immunodeficiency virusT-LymphocytesVaccines, AttenuatedViral Envelope ProteinsViral LoadViremiaConceptsAnti-SIV antibody responsesSimian immunodeficiency virusAntibody responseImmune responseVaccine protectionImmunodeficiency virusCopies/Gamma interferon enzyme-linked immunospotVaccine/challenge experimentsAttenuated simian immunodeficiency virusGut-associated lymphoid tissueHigh-titer antibody responsesAnti-SIV immune responsesEnzyme-linked immunospotMacrophage marker CD68Cellular immune responsesHumoral immune responseViral load measurementsWeeks of infectionNeutralization-resistant strainDouble-labeling experimentsVaccinated monkeysViral loadPeripheral bloodLymphoid tissue
2006
Ability of herpes simplex virus vectors to boost immune responses to DNA vectors and to protect against challenge by simian immunodeficiency virus
Kaur A, Sanford H, Garry D, Lang S, Klumpp S, Watanabe D, Bronson R, Lifson J, Rosati M, Pavlakis G, Felber B, Knipe D, Desrosiers R. Ability of herpes simplex virus vectors to boost immune responses to DNA vectors and to protect against challenge by simian immunodeficiency virus. Virology 2006, 357: 199-214. PMID: 16962628, PMCID: PMC1819472, DOI: 10.1016/j.virol.2006.08.007.Peer-Reviewed Original ResearchConceptsSimian immunodeficiency virusELISPOT responsesImmunodeficiency virusHSV vectorsHerpes simplex virus vectorsPlasma SIV RNAPlasma viremia levelsVector-based vaccinesDay of challengeSimplex virus vectorsNef fusion proteinRecombinant HSV vectorsSIV RNAIntravenous challengeViremia levelsAntibody titersVaccine approachesImmune responseRhesus macaquesProtective capacityMacaquesRecombinant herpesvirusDNA vectorsFusion proteinEnv
2005
Immunization of Macaques with Single-Cycle Simian Immunodeficiency Virus (SIV) Stimulates Diverse Virus-Specific Immune Responses and Reduces Viral Loads after Challenge with SIVmac239
Evans D, Bricker J, Sanford H, Lang S, Carville A, Richardson B, Piatak M, Lifson J, Mansfield K, Desrosiers R. Immunization of Macaques with Single-Cycle Simian Immunodeficiency Virus (SIV) Stimulates Diverse Virus-Specific Immune Responses and Reduces Viral Loads after Challenge with SIVmac239. Journal Of Virology 2005, 79: 7707-7720. PMID: 15919923, PMCID: PMC1143664, DOI: 10.1128/jvi.79.12.7707-7720.2005.Peer-Reviewed Original ResearchConceptsSingle-Cycle Simian Immunodeficiency VirusesRNA copies/AIDS vaccine approachSingle-cycle SIVEnzyme-linked immunospotViral loadSimian immunodeficiency virusCopies/Immunodeficiency virusVaccine approachesGamma interferon enzyme-linked immunospotGag-specific T-cell responsesVirus-specific immune responsesMajor Histocompatibility Complex Class I DownregulationT cell proliferative responsesImmunization of macaquesPlasma viral loadT cell responsesMHC class IThird doseChronic phasePeripheral bloodWeek 8Immune responseControl animals
2004
Impact of Nef-Mediated Downregulation of Major Histocompatibility Complex Class I on Immune Response to Simian Immunodeficiency Virus
Swigut T, Alexander L, Morgan J, Lifson J, Mansfield K, Lang S, Johnson R, Skowronski J, Desrosiers R. Impact of Nef-Mediated Downregulation of Major Histocompatibility Complex Class I on Immune Response to Simian Immunodeficiency Virus. Journal Of Virology 2004, 78: 13335-13344. PMID: 15542684, PMCID: PMC525019, DOI: 10.1128/jvi.78.23.13335-13344.2004.Peer-Reviewed Original ResearchConceptsSimian immunodeficiency virusHuman immunodeficiency virusImmunodeficiency virusWeeks postinfectionMajor Histocompatibility Complex Class I DownregulationClass IMajor histocompatibility complex class IHistocompatibility complex class IComplex class IMHC class INef gene productParental wild-type virusImmune responseLymphocyte activationWild-type virusNef functionCD4 downregulationFunctional activityMHC downregulationDownregulationResponse-4VirusMonkeysPostinfectionNef
2003
Importance of B-Cell Responses for Immunological Control of Variant Strains of Simian Immunodeficiency Virus
Johnson W, Lifson J, Lang S, Johnson R, Desrosiers R. Importance of B-Cell Responses for Immunological Control of Variant Strains of Simian Immunodeficiency Virus. Journal Of Virology 2003, 77: 375-381. PMID: 12477842, PMCID: PMC140644, DOI: 10.1128/jvi.77.1.375-381.2003.Peer-Reviewed Original ResearchConceptsHigh viral loadSimian immunodeficiency virusViral loadAntibody-mediated neutralizationImmunological controlEffective immunological controlImmunodeficiency virusVariant strainsContinuous viral replicationReplicative capacityB cell responsesGp120 envelope proteinTime of infectionHigh replicative capacityAntibody responseDisease progressionB cellsDay 14Tissue macrophagesExperimental infectionViral replicationRhesus monkeysVariable region 1InfectionV2 sequences
1997
Association of simian immunodeficiency virus Nef with cellular serine/threonine kinases is dispensable for the development of AIDS in rhesus macaques
Lang S, Lafrate A, Stahl-Hennig C, Kuhn E, Nisslein T, Kaup F, Haupt M, Hunsmann G, Skowronski J, Kirchhoff F. Association of simian immunodeficiency virus Nef with cellular serine/threonine kinases is dispensable for the development of AIDS in rhesus macaques. Nature Medicine 1997, 3: 860-865. PMID: 9256276, DOI: 10.1038/nm0897-860.Peer-Reviewed Original ResearchConceptsCellular serine/threonine kinaseSerine/threonine kinaseThreonine kinaseTyrosine kinase SrcPutative SH3Simian immunodeficiency virus NefKinase SrcMutant formsEfficient replicationKinaseInduction of AIDSSimian immunodeficiency virusNef geneCD4 downregulationSIVmac NefRhesus macaquesRapid deathNef sequencesSH3NefSrcGenesDomainDifferent time pointsPathogenicity
1995
vpr deletion mutant of simian immunodeficiency virus induces AIDS in rhesus monkeys
Hoch J, Lang S, Weeger M, Stahl-Hennig C, Coulibaly C, Dittmer U, Hunsmann G, Fuchs D, Müller J, Sopper S. vpr deletion mutant of simian immunodeficiency virus induces AIDS in rhesus monkeys. Journal Of Virology 1995, 69: 4807-4813. PMID: 7609047, PMCID: PMC189293, DOI: 10.1128/jvi.69.8.4807-4813.1995.Peer-Reviewed Original ResearchProgression to AIDS in the absence of a gene for vpr or vpx
Gibbs J, Lackner A, Lang S, Simon M, Sehgal P, Daniel M, Desrosiers R. Progression to AIDS in the absence of a gene for vpr or vpx. Journal Of Virology 1995, 69: 2378-2383. PMID: 7884883, PMCID: PMC188910, DOI: 10.1128/jvi.69.4.2378-2383.1995.Peer-Reviewed Original ResearchConceptsLow virus burdenSimian immunodeficiency virusVirus burdenRhesus monkeysLymphocyte concentrationsPlasma antigenemiaHigh virus burdenLymph node morphologyImmunodeficiency virusDisease progressionSIVmac replicationPrimate lentivirusesVirus replicationWild-type virusNode morphologyAIDSVpx geneTerminal stageProgressionAntigenemiaCD4VpxMonkeysEarly spikeBurden