Mediatiors of inflammation and Anti Inflammatory Drugs Flashcards
sources of histamine
mast cells
basophils
platelets
sources of serotonin
platelets
sources of prostaglandings
mast cells
leukocytes
sources of leukotrienes
mast cells
leukocytes
sources of PAF
leukocytes
mast cells
sources of ROS
leukocytes
sources of NO
endothelium
macrophages
sources of cytokines (TNF, IL1, IL6)
macrophages
endothelial cells
mast cells
sources of chemokines
leukocytes
activated macrophages
sources of complement
plasma (produced in liver)
sources of kinins
plasma (produced in liver)
sources of proteases activated during coagulation
plasma (produced in liver)
actions of histamine
vasodilation
increased vascular permability
endothelial activation
action of serotonin
vasoconstriction
action of prostaglandins
vasodilation
fever
pain
action of leukotrienes
increased vascular permability
chemotaxis
leukocyte adhesion and activation
action of PAF
vasodilation
increased vascular permeability
chemotaxis
leukocyte adhesion and activation
action of ROS
killin of microbes
tissue damage
action of NO
vascular smooth muscle relaxation
killing of microbes
action of cytokines (TNF IL4, IL6)
Local: endothelial activation (ncreased exression of adhesion molecules)
Systemic: fever, metabolic abnormalities, hypotension and SHOCK
action of chemokines
chemotaxis
leukocyte activation
action of complement
leukocyte chemotaxis and activation
direct target killing (MAC),
vasodilation (mast cell stimulation IgE)
action of kinins
increased vascular permeability
smooth muscle contraction
vasodliation
pain
action of proteases active curing coagulation
endothelial activation
leukocytes recruitment
eicosanoids that cause vasodilation
PGI2, PGE2, PGD2
Eicosanoids causing vasoconstriction
thromboxane A2, LTC4, LTD4, LTE4
eiocsanoids causing increase vascular permeability
LTC4, LTD4, LTE4
eicosanoids causing chemotaxis and leukocyte adhesion
LTB4, HETE
Major problem with NSAIDs and Corticosteroids
they are non-specific
mitogen activated MAPk that is expressed in cells undergoing stress
p38
Which cell expresses CTLA4 and what does it do?
T cell surface receptor that bind to the CD28 complex and turns second signal of activation OFF
inflammatory mediators we currently have targets for
PG’s, Histamine, C3a C5a, Lt’s, CGRP (not effective yet), IL 1 and IlL6, TNF,LXA4 LXB4, LTB4,