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A lymphocyte is a type of white blood cell (leukocyte) in the immune system of most vertebrates. [1] Lymphocytes include T cells (for cell-mediated and cytotoxic adaptive immunity), B cells (for humoral, antibody-driven adaptive immunity), [2] [3] and innate lymphoid cells (ILCs; "innate T cell-like" cells involved in mucosal immunity and homeostasis), of which natural killer cells are an ...
White pulp is a histological designation for regions of the spleen (named because it appears whiter than the surrounding red pulp on cross section), that encompasses approximately 25% of splenic tissue.
Neutrophil to Lymphocyte ratio was first demonstrated as useful parameter after a correlation of a relationship between the neutrophil lymphocyte ratio to reactions of the immune response was noted.
They are key to an experimental autologous cell therapy (Contego) for metastatic melanoma. [15] Autologous TIL therapy for metastatic melanoma has broad T cell recognition of both defined and undefined tumor antigens against all human leukocyte antigen (HLA) restrictions.
Foreground and background in photography and cinematography, a principle important for Depth of field, the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image; Deep focus, a technique using a large depth of field; Fill flash, to correctly expose the foreground and background objects
Gary Alan Sinise (/ s ɪ ˈ n iː s /; born March 17, 1955) is an American actor, director, producer, and musician.Among other awards, he has won a Primetime Emmy Award, a Golden Globe Award, a Tony Award, and four Screen Actors Guild Awards.
Antigen presentation stimulates immature T cells to become either mature "cytotoxic" CD8+ cells or mature "helper" CD4+ cells. An antigen-presenting cell (APC) or accessory cell is a cell that displays an antigen bound by major histocompatibility complex (MHC) proteins on its surface; this process is known as antigen presentation.
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