Morphology and functions of inflammatory cells
MORPHOLOGY |
FEATURES
|
MEDIATORS |
A,
POLYMORPH |
·
Initial phagocytosis of bacteria and foreign body ·
Acute inflammatory cell |
·
Primary granules (MPO, lysozyme, cationic proteins, acid hydrolases, elastase) ·
Secondary granules (lysozyme, alk. phosph,
collagenase, lactoferrin) ·
Tertiary granules (gelatinase, cathepsin) ·
Reactive oxygen metabolites |
B,
MONOCYTE/MACROPHAGE |
·
Bacterial phagocytosis ·
Chronic inflammatory cell ·
Regulates lymphocyte response |
·
Acid and neutral hydrolases (lysosomal) ·
Cationic protein ·
Phospholipase ·
Prostaglandins, leukotrienes ·
IL-1 |
C,
LYMPHOCYTE |
·
Humoral and cell-mediated immune responses ·
Chronic inflammatory cell ·
Regulates macrophage response |
·
B cells: antibody production · T cells: delayed hypersensitivity, cytotoxicity |
D,
PLASMA CELL |
·
Derived from B cells ·
Chronic inflammatory cell |
·
Antibody synthesis ·
Antibody secretion |
E,
EOSINOPHIL |
·
Allergic states ·
Parasitic infestations ·
Chronic inflammatory cell |
·
Reactive oxygen metabolites ·
Lysosomal (major basic protein, ·
cationic protein, eosinophil ·
peroxidase, neurotoxin) ·
PGE2 synthesis |
F,
BASOPHIL/MAST CELL |
·
Receptor for IgE molecules ·
Electron-dense granules |
·
Histamine ·
Leukotrienes ·
Platelet activating factor |
Comments
Post a Comment