Peptide/Proteins Flashcards
neurotransmitter proteins
Often co-transmitters
cause inflammation (histamine + vasodilation)
-Substance P
-NeurokininA
-CGRP calcitonin gene released protein
-Neuropeptide Y
Bradykinin synthesis
from plasma protein kininogen by protease kallikrein
Broken down by ACE
bradykinin receptors
B1 and B2 G protein receptors
Bradykinin effects
-vasodilation via NO and PGI2
-Vascular permeability
-stimulate nerve endings
-increase fluid secretion in airways and GI
-contact GI and uterine SM
Growth factors
small proteins
bind kinase linked receptors
antagonists used for cancer treatment
Cytokines effects
synthesized by immune cells during inflammation
-cause further inflammation by acting on kinase receptors phosphorylating gene factors
Interleukins
cytokines that signals between leukocytes (inflammatory)
Chemokines
chemoattractant cytokines
Interferons
interfere with viral replication
Colony stimulating factors
cytokines/growth factor cross over
like EPO