Shared Flashcard Set

Details

Immunosuppressives
test 4
7
Biology
Post-Graduate
11/23/2009

Additional Biology Flashcards

 


 

Cards

Term
Etanercept
Definition
soluble version of TNF which acts as a decoy and soaks up TNF in circulation before it can get to its cell surface receptor
Term
Glucocorticoids
Definition

broad activity

bind to glucocorticoid receptor and change the transcription of many genes in the nucleus;alter production of IkB-alpha; IkB-alpha makes complex with NF-kB to keep it from getting to the nucleus- so, targets NF-kB txn factor

 

affects lymphocyte 1. proliferation, 2. activation, and 3. effector function

Term
Cyclosporin 
Definition

calcineurin inhibitors; bind to an intermediate protein called cyclophilin; prevents IL-2 and IL-6 release; complex targets NF-AT

 

calcineurin is a phosphatase that removes phosphate group from NF-AT (transcription factor) so it can go into the nucleus and activate t cell

Term
FK506 (tacrolimus)
Definition
similar to cyclosporin; binds to FK-binding protein, inhibiting secretion of IL-2 and IL-6
Term
Sirolimus (Rapamycin)
Definition

binds to the FK binding protein (like tacrolimus) but doesn't affect calcineurin

 

blocks function of mTOR ( binds to mTOR)  and thus blocks G1-S phase of cell cycle

 

inhibits T cell proliferation in response to IL-2

Term
Mycophenolate
Definition

blocks purine synthesis, and thus lymphocyte sine proliferation;

 

inosine monophospate dehydrogenase inhibitor

Supporting users have an ad free experience!