Innate immunity : Phagocytosis process - NK cells скачать в хорошем качестве

Innate immunity : Phagocytosis process - NK cells

Microstudy/Dr Ahmed Talaat قناة متخصصه لشرح مادة الميكروبيولوجي والمناعة لجميع طلبة الكليات العملية Cells of innate immunity : (1) Phagocytes (Phagocytosis process) Phagocytic cells include the following : Macrophages; neutrophils, dendritic cells Phagocytosis is a multistep process whereby a phagocytic cell, like a neutrophil, recognizes the pathogen, ingests it, and then destroys the engulfed organism. (2) NK cells Natural killer (NK) cells are large, granular lymphocytes morphologically related to T cells, which make up 10–15% of blood leukocytes. NK cells contribute to innate immunity by providing protection against viruses and other intracellular pathogens. NK cells have the ability to recognize and kill virus-infected cells and tumor cells.