The processing and presentation of lipid antigens involve several steps:
1. Internalization: Lipid antigens are internalized by APCs through endocytosis or phagocytosis. 2. Loading: Within the endosomal or lysosomal compartments, lipid antigens are loaded onto CD1 molecules. 3. Transport: The CD1-lipid antigen complex is transported to the cell surface. 4. Recognition: T cells recognize the lipid antigen-CD1 complex through their T cell receptors (TCRs).
