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The adaptive immune system, AIS, also known as the acquired immune system, or specific immune system is a subsystem of the immune system that is composed of specialized cells, organs, and processes that eliminate pathogens specifically.
Adaptive NK cells are so named for properties which they share with the adaptive immune system. Though adaptive NK cells do not possess antigen specificity, they exhibit dynamic expansions of defined cell subsets, increased proliferation and long-term persistence for up to 3 months in vivo, high IFN-γ production, potent cytotoxic activity upon ...
Dendritic cells serve as a link between the bodily tissues and the innate and adaptive immune systems, as they present antigens to T cells, one of the key cell types of the adaptive immune system. [37] Granulocytes are leukocytes that have granules in their cytoplasm. In this category are neutrophils, mast cells, basophils, and eosinophils.
The T helper cells (T h cells), also known as CD4 + cells or CD4-positive cells, are a type of T cell that play an important role in the adaptive immune system. They aid the activity of other immune cells by releasing cytokines .
In immunology, a memory B cell (MBC) is a type of B lymphocyte that forms part of the adaptive immune system. These cells develop within germinal centers of the secondary lymphoid organs . Memory B cells circulate in the blood stream in a quiescent state, sometimes for decades. [ 1 ]
Antigen-presenting cells are vital for effective adaptive immune response, as the functioning of both cytotoxic and helper T cells is dependent on APCs. Antigen presentation allows for specificity of adaptive immunity and can contribute to immune responses against both intracellular and extracellular pathogens.
Messengers between innate and adaptive immune system [12] [13] B cell: Lymphocyte: B cell: B lymphocyte; Lymphocytus B; 8-10 Produces antibody molecules [14] [4] Plasma cell: Lymphocyte: B cell: Plasma B cells; Effector B cells; Plasmocytus; 8-10 Active B cells that produces large amounts of antibodies [4] [15] Memory B cell: Lymphocyte: B cell ...
The ability to generate memory cells following a primary infection and the consequent rapid immune activation and response to succeeding infections by the same antigen is fundamental to the role that T and B cells play in the adaptive immune response. For many years, NK cells have been considered to be a part of the innate immune system.