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Virus-infected cell (hapten-directed antibody recruitment)

Molecular classification: Cellular, Modified host/cellular

Overview

A therapeutic strategy targeting virus-infected cells by labeling them with haptens, which then recruit endogenous or exogenously administered anti-hapten antibodies to mediate immune effector functions such as ADCC or complement activation.

Other names: Hapten-targeted virus-infected cellHapten-mediated antibody recruitment to infected cells

Mechanism of action

Recruitment of anti-hapten antibodies to virus-infected cells, leading to immune-mediated cell death.

Biological functions

Immune responseAntibody-dependent cellular cytotoxicity (ADCC)Complement activationVirus clearance

Disease associations

InfectionViral disease

Safety considerations

Off-target haptenylationNon-specific immune activationAutoimmune reactionsPotential for enhanced disease if antibody response is not protectiveImmunogenicity of hapten-carrier conjugates

Biomarkers

Hapten presence on infected cell surfaceAnti-hapten antibody titer

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