When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Basophil - Wikipedia

    en.wikipedia.org/wiki/Basophil

    Basophils are a type of white blood cell. Basophils are the least common type of granulocyte, representing about 0.5% to 1% of circulating white blood cells. [1]

  3. Phagocyte - Wikipedia

    en.wikipedia.org/wiki/Phagocyte

    Unbound phagocyte surface receptors do not trigger phagocytosis. 2. Binding of receptors causes them to cluster. 3. Phagocytosis is triggered and the particle is taken up by the phagocyte. Phagocytosis is the process of taking in particles such as bacteria, invasive fungi, parasites, dead host cells, and cellular and foreign debris by a cell. [22]

  4. White blood cell - Wikipedia

    en.wikipedia.org/wiki/White_blood_cell

    Basophils are chiefly responsible for allergic and antigen response by releasing the chemical histamine causing the dilation of blood vessels. Because they are the rarest of the white blood cells (less than 0.5% of the total count) and share physicochemical properties with other blood cells, they are difficult to study. [ 17 ]

  5. Granulocyte - Wikipedia

    en.wikipedia.org/wiki/Granulocyte

    These cells also have a limited ability to participate in phagocytosis, [20] they are professional antigen-presenting cells, they regulate other immune cell functions (e.g., CD4+ T cell, dendritic cell, B cell, mast cell, neutrophil, and basophil functions), [21] they are involved in the destruction of tumor cells, [17] and they promote the ...

  6. Fc receptor - Wikipedia

    en.wikipedia.org/wiki/Fc_receptor

    In immunology, an Fc receptor is a protein found on the surface of certain cells – including, among others, B lymphocytes, follicular dendritic cells, natural killer cells, macrophages, neutrophils, eosinophils, basophils, human platelets, and mast cells – that contribute to the protective functions of the immune system.

  7. Phagoptosis - Wikipedia

    en.wikipedia.org/wiki/Phagoptosis

    Phagocytosis of an otherwise-viable cell may occur because the cell is recognised as stressed, activated, senescent, damaged, pathogenic or non-self, or is misrecognised. Cells are phagocytosed as a result of: i) expressing eat-me signals on their surface, ii) losing don’t-eat-me signals, and/or iii) binding of opsonins .

  8. Phagocytosis - Wikipedia

    en.wikipedia.org/wiki/Phagocytosis

    Phagocytosis (from Ancient Greek φαγεῖν (phagein) 'to eat' and κύτος (kytos) 'cell') is the process by which a cell uses its plasma membrane to engulf a large particle (≥ 0.5 μm), giving rise to an internal compartment called the phagosome. It is one type of endocytosis. A cell that performs phagocytosis is called a phagocyte.

  9. Macrophage - Wikipedia

    en.wikipedia.org/wiki/Macrophage

    Macrophages can also recognize pathogens for phagocytosis indirectly through opsonins, which are molecules that attach to pathogens and mark them for phagocytosis. [29] Opsonins can cause a stronger adhesion between the macrophage and pathogen during phagocytosis, hence opsonins tend to enhance macrophages’ phagocytic activity. [ 30 ]