inflammation Flashcards
inflammation is .. and… response to injury and infection
normal and necessary
inflammatory mediators/ proinflammatory cytokines (3)
TNF alpha
IL 1B
IL-6
another group of inflammatory mediators that are involved in vasodilation
histamine
bradukinin
leukotrienes
… are inflammatory mediators that are derived from cell membrane phospholipids and they work with histamine and bradykinin to accomplish constriction PGE2 or dilation PGF2a, production or inhibition of clots, thermoregulatory center of hypothalamus (PGE1)
and redness edema and pain (PGE2)
prostaglandins
tissue specific
… are inflammatory mediators that are derived from cell membrane phospholipids and they work with histamine and bradykinin to accomplish constriction PGE2 or dilation PGF2a, production or inhibition of clots
prostaglandins
complement proteins:
… is involved in monocyte/neutrophil recruitment
… and… can trigger mast cell degranulation
C5a
C3a and C5a
cytokines involved in turning off inflammation
IL 10
TGF B
medication for chronic inflammation
glucocorticosteroids
immunosuppressants
anti-leukotrienes
adhesion molecules involved in early stages of leukocyte capture
selectins
adhesion molecules involved in early stages of leukocyte capture
selectine
chemokines are named base on the location of the
N-terminal cytesine residues
the first step is… which slows leukocyte down within post capillary venule and is selectin mediated
rolling/tethering
selectins are… affinity
low
P and E selectin are found on … cells
endothelial
P selectin almost instantaneously is activated by
histamine or thrombin
E selectins take hours because they are activated by
cytokines
L selectins are found on
neutrophils, monocytes, T and B cells
Second step is… and is when chemokines act on rolling leukocyte and causes chemokines to change to high affinity and slows down leukocyte more
integrin activation
integrins are on the… and the ligand is on the…
leukocyte
endothelial cell
Step 3 is.. where high affinity integrins bind to ligands and the leukocyte stops and flattens out (cytoskeleton rearrangements)
adherence
lymphocytes take a different… it occurs in high endothelial venules and doesnt need to be activated
route
lymphocytes take a different
route