Antigen Presenting Cells (APCs) are immune cells that capture antigens and present them on their surface to T-cells, initiating an immune response. Key APCs include dendritic cells, macrophages, and B-cells.
5 Must Know Facts For Your Next Test
APCs are crucial for the activation of T-cells.
Dendritic cells are considered the most potent APCs.
APCs express Major Histocompatibility Complex (MHC) molecules on their surface to present antigens.
Macrophages can act as APCs by engulfing pathogens and presenting their antigens.
B-cells can present antigens to helper T-cells, which is essential for antibody production.