Disease ProgressionHIV InfectionsHIV SeropositivityHIV SeroprevalenceHIV SeronegativityHIV-1Acquired Immunodeficiency SyndromeCell CycleAnti-HIV AgentsHIV AntigensAIDS SerodiagnosisCD4 Lymphocyte CountCell Line, TumorTime FactorsHIV Protease InhibitorsViral LoadRisk FactorsSexual BehaviorHomosexuality, MaleGene Expression Regulation, NeoplasticTreatment OutcomeCell ProliferationAnti-Retroviral AgentsHIV Core Protein p24Risk-TakingFollow-Up StudiesPrognosisSignal TransductionImmunohistochemistryDisease Models, AnimalCohort StudiesProstatic NeoplasmsNeoplasm MetastasisSouth AfricaHIV Envelope Protein gp120HIV Reverse TranscriptasePrevalenceReceptors, HIVProspective StudiesNeoplasm InvasivenessSubstance Abuse, IntravenousMutationHIV ProteaseCell Transformation, NeoplasticHIV Long-Term SurvivorsSexual PartnersCell Cycle ProteinsApoptosisRNA, MessengerS PhaseMolecular Sequence DataRetrospective StudiesCell DivisionG1 PhaseCells, CulturedBreast NeoplasmsReverse Transcriptase Polymerase Chain ReactionTumor Markers, BiologicalCD4-Positive T-LymphocytesAIDS-Related Opportunistic InfectionsBiological MarkersUgandaCell LineNeoplasmsMice, TransgenicBlotting, WesternCoinfectionCross-Sectional StudiesSurvival AnalysisCondomsMitosisZimbabweMice, Inbred C57BLUnsafe SexModels, BiologicalTumor Cells, CulturedAdenocarcinomaPhenotypeLongitudinal StudiesHealth Knowledge, Attitudes, PracticeAntineoplastic AgentsGene Expression ProfilingFlow CytometryDown-RegulationMice, NudeCounselingBase SequenceCell MovementPrecancerous ConditionsPhosphorylationRNA, ViralUp-RegulationUnited StatesSeverity of Illness IndexLung NeoplasmsAIDS Dementia ComplexIncidenceMultivariate AnalysisPolymerase Chain ReactionVirus Replication