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Lymphocyte Activation
The process by which lymphocytes (a type of white blood cell) are stimulated to respond to pathogens or other antigens.
Antigen-presenting Cells
Specialized immune cells that capture antigens and present them on their surface to T-cells, initiating an immune response.
Helper T Cells
White blood cells that play a critical role in the immune system by activating other immune cells to fight off infections.
Cytokines
Small proteins released by cells that have a specific effect on the interactions and communications between cells, often involved in immune responses.
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