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An azurophil is a cellular object readily stainable with an Romanowsky stain. In white blood cells and hyperchromatin, imparting a burgundy or merlot coloration. Neutrophils in particular are known for containing azurophils loaded with a wide variety of anti-microbial defensins that fuse with phagocytic vacuoles. Azurophils may contain myeloperoxidase, phospholipase A2, Acid Hydrolases, Elastase, defensins, neutral serine proteases, bactericidal/permeability-increasing protein, lysozyme, cathepsin G, proteinase 3, and proteoglycans. Azurophil granules are also known as "primary granules". Furthermore, the term Azurophils may refer to a unique type of cells, identified only in reptiles. These cells are similar in size to so-called heterophils with abundant cytoplasm that is finely to coarsely granular and may sometimes contain vacuoles. Granules may impart a purplish hue to the cytoplasm, particularly to the outer region. Occasionally azurophils are observed with vacuolated cytoplasm. ==See also== * Azure A * Azure (color) * Lysosome * Specific granules 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Azurophilic granule」の詳細全文を読む スポンサード リンク
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