Antigen-presenting cells, a class of cells essential to the immune system

Antigen-presenting cells (APCs) Antigen-presenting cells are a class of immune cells that capture antigens, process the antigens and display fragments of the antigen for recognition by T-lymphocytes. Classical antigen-presenting cells are dendritic cells, macrophages, and B-cells. Aside from the classical antigen-presenting cells listed above, a good number of cells of the immune system (e.g. monocytes) […]

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Basic concepts in Modern Immunology

Immunology is the study of the various mechanisms of host defenses against infections, infectious diseases and neoplasm, together with the undesirable consequences of immune interactions such as inflammation, autoimmunity, and hypersensitivity reactions. Pathogens are organisms that invade our body to cause disease. They are five types of human pathogens; Bacteria Fungi Viruses Protozoa Worms (helminthes) […]

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