Target intelligence / Profile preview

CD8+ T cell activation via cross-presentation

Molecular classification
Immune Process, Antigen Presentation Pathway
01

Overview

CD8+ T cell activation via cross-presentation refers to the process by which certain professional antigen-presenting cells (APCs), primarily dendritic cells (DCs), present extracellular (exogenous) antigens on major histocompatibility complex class I (MHC I) molecules to naive CD8+ T cells. This mechanism is distinct from the classical pathway, where endogenous antigens are presented on MHC I, and is essential for initiating cytotoxic immune responses against pathogens that do not directly infect APCs, as well as for anti-tumor immunity.

02

Biological functions

Immune responseT cell activationCytotoxicityAntigen presentationTolerance induction
03

Disease associations

Viral infectionTumor immunityAutoimmunity
04

Safety considerations

Autoimmunity if tolerance mechanisms fail

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