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Immunopharmacology
pharmacology of immune suppressants and potentiators
136
Pharmacology
Professional
02/16/2012

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Term
Aldesleukin, IFNs and BCG are immune...
Definition
potentiators
Term
immunophilin ligands, like _____, are immune _____s
Definition
cyclosporin, suppressants
Term
enzyme inhibitors like _________ _______ are immune _______s
Definition
mycophenolate mofetil, suppressants
Term
cytotoxic drugs like ______ are immune ______s
Definition
azathioprine, suppressants
Term
Anti-TNFa agents like _______ are immune ______s
Definition
etanercept, suppressants
Term
_______s like RhoGAM are immune ______s
Definition
antibodies, suppressants
Term
Activated Th cells secrete _____, a cytokine that causes proliferation and activation of ____ and ____
Definition
IL-2, Th1, Th2
Term
Th1 cells orchestrate _______ immunity and _______ _______ reactions
Definition
cell-mediated, delayed hypersensitivity reacions
Term
Th1 cells produce what? What does it do?
Definition
Th1 -> IFNy, IL-2, TNF-b -> activate macs, CTLs, and NK cells
Term
When T-cell receptors on Th2 cells are activated by MHC2-peptide complex, they release which ILs? What does that do?
Definition
IL-4, 5, and 6 -> B cell proliferation and differentiation into memory B cells and plasma cells
Term
____ downregulates Th1 responses
Definition
IL-10 (from Th2)
Term
____ downregulates Th2 responses
Definition
IFNy (from Th1)
Term
corticosteroids have a greater affect on _______ than humoral immunity, but continuous therapy lowers IgG levels
Definition
cell-mediated (T-lymphocyte proliferation)
Term
Glucocorticoids can induce ___ in immune cells, making them useful for ___
Definition
apoptosis, cancer
Term
Cyclosporine, tacrolimus and sirolimus bind ________, which play critical roles in ____-cell function
Definition
immunophilins, T
Term
Name the drugs that bind immunophilins and affect T cell function
Definition
cyclosporine, tacrolimus, sirolimus
Term
Cyclosporin binds...
Definition
cyclophilin
Term
which drug binds cyclophilin?
Definition
cyclosporine
Term
tacrolimus binds...
Definition
FK-binding protein
Term
Which drug binds FK-binding protein?
Definition
tacrolimus
Term
Both cyclosporin-cyclophilin and tacrolimus-FKBP complexes inhibit...
Definition
calcineurin
Term
which drugs inhibit calcineurin?
Definition
cyclosporin-cyclophilin, and tacrolimus-FKBP
Term
Calcineurin regulates the ability of the nuclear factor of activated T cells (NF-AT) to...
Definition
translocate to the nucleus and increase production of cytokines
Term
What regulates the ability of NF-AT to translocate to the nucleus and increase production of cytokines?
Definition
calineurin
Term
What does sirolimus do?
Definition
binds FKBP, inhibits the response of T cells to cytokines without affecting cytokine production
Term
Which drug binds FKBP and inhibits the response of T cells to cytokines without affecting cytokine production?
Definition
sirolimus
Term
Sirolimus is a potent inhibitor of...
Definition
B-cell prolif, Ab production, mononuclear cell responses to CSF
Term
Cyclosporine is used in...
Definition
solid organ transplants, GVHD
Term
Tacrolimus is used in...
Definition
solid organ and stem cell transplants, and GVHD
Term
Sirolimus is used alone or with cyclosporine in...
Definition
solid organ transplant, investigation for GVHD
Term
cyclosporine, tacrolimus and sirolimus are used in some autoimmune diseases, like...
Definition
RA, uveitis, psoriasis, asthma, T1 DM
Term
Cyclosporine and tacrolimus are available as oral or IV, but sirolimus is only available for ___ use
Definition
oral
Term
______ exhibits erratic bioavailability and serum levels should be monitored
Definition
cyclosporine
Term
cyclosporine is metabolized by...
Definition
p450
Term
Toxicity of cyclosporine and tacrolimus?
Definition
renal dysfunction, HTN, neurotox, hyperglycemia, hyperlipidemia, cholelithiasis
Term
sirolimus is more likely than cyclosporine or tacrolimus to cause...
Definition
hypertriglyceridemia, hepatotoxicity, diarrhea, myelosuppression
Term
mycophenolate mofetil - MOA and effects?
Definition
-> mycophenolic acid, inhibits IMP dehydrogenase (purine synthesis), suppresses both B and T cell activation
Term
which drug inhibits IMP dehydrogenase (purine synthesis), suppresses both B and T cell activation?
Definition
mycophenolate
Term
mycophenolate has been used for...
Definition
kidney, liver, heart transplants
Term
tox of mycophenolate?
Definition
GI disturbance, myelosuppression, neutropenia
Term
Which drug causes GI disturbance, myelosuppression, neutropenia?
Definition
mycophenolate
Term
azathioprine: MOA?
Definition
-->mercaptopurine, inhibits enzymes involved with purine metabolism
Term
which drug is metabolized to mercaptopurine, inhibits enzymes involved with purine metabolism?
Definition
azathioprine
Term
azathioprine is cytotoxic in the ____ phase of lymphoid cell prolif and has greater effect on activity of ___ cells
Definition
early, T
Term
which drug is cytotoxic in the early phase of lymphoid cell prolif and has a greater effect on the activity of T cells than B cells?
Definition
azathioprine
Term
what is azathioprine used for?
Definition
autoimmune diseases, immunosuppression in renal homografts, minimal effect on established graft rejection
Term
which drug is used in autoimmune diseases, immunosuppression in renal homografts, and has minimal effect on established graft rejection?
Definition
azathioprine
Term
Toxicity of azathioprine?
Definition
major: bone marrow suppression, also GI irritation, rashes, liver dysfunction.
Term
tox: major- bone marrow suppression, also GI irritation, rashes, liver dysfunction. NAME THE DRUG.
Definition
azathioprine
Term
the use of ____ is associated with an increased risk of cancer
Definition
azathioprine
Term
azathioprine is assoc with an increased risk of...
Definition
cancer
Term
Azathioprine's metabolite is metabolized by ____ ____, which can cause toxic effects when administered with ______
Definition
xanthine oxidase, allopurinol
Term
allopurinol can cause toxic effects with the administration of ______, because its metabolite is metabolized by xanthine oxidase
Definition
azathioprine
Term
cyclophosphamide - MOA?
Definition
orally active prodrug is transformed by liver enzymes to alkylating agent that is cytotoxic to proliferating lymphoid cells
Term
which drug is an orally active prodrug that is transformed by liver enzymes to alkylating agent that is cytotoxic to proliferating lymphoid cells?
Definition
cyclophosphamide
Term
effects of cyclophosphamide?
Definition
greater effect on B than T, will inhibit an established immune response
Term
which drug has a greater effect on B than T cells and will inhibit an established immune response?
Definition
cyclophosphamide
Term
Other than cyclophosphamide, cytotoxic drugs that similarly suppress proliferating lymphoid cells and are sometimes used as immunosuppressants include...
Definition
cytarabine, dactinomycin, methotrexate, vincristine
Term
cyclophosphamide is effective for...
Definition
autoimmune diseases (including hemolytic anemia), Ab-induced red cell aplasia, BMTs, and possibly other organ transplant procedures
Term
which drug is used for autoimmune diseases (including hemolytic anemia), Ab-induced red cell aplasia, BMTs, and possibly other organ transplant procedures?
Definition
cyclophosphamide
Term
the large doses of cyclophosphamide usually needed for immunosuppression cause...
Definition
pancytopenia, GI distress, hemorrhagic cystitis, alopecia, may cause sterility
Term
tox of large doses: pancytopenia, GI distress, hemorrhagic cystitis, alopecia, may cause sterility. NAME THE DRUG
Definition
cyclophosphamide
Term
What is Etanercept?
Definition
recombinant TNFa
Term
which drug is a recombinant TNFa receptor?
Definition
Etanercept
Term
which drug sequesters TNFa, reducing formation of ILs and adhesion molecules involved in leukocyte activation
Definition
etanercept
Term
What is etanercept used for?
Definition
RA, psoriatic arthritis, other inflam diseases
Term
tox of etanercept?
Definition
injection site rxns and hypersensitivity
Term
etanercept, infliximab and adalimumab increase the risk of...
Definition
serious infections and lymphoma
Term
MOA of leflunomide?
Definition
inhibits pyrimidine synthesis and arrests lymphocytes in G1 phase
Term
which drug inhibits pyrimidine synthesis and arrests lymphocytes in G1 phase?
Definition
leflunomide
Term
leflunomide is used in...
Definition
RA
Term
Tox of leflunomide?
Definition
liver dmg, renal impairement, teratogenic effects, and may cause cardiovascular effects (angina, tachy)
Term
Toxicity of which drug includes liver dmg, renal impairement, teratogenic effects, and may cause cardiovascular effects (angina, tachy)?
Definition
leflunomide
Term
Thalidomide is a ____ drug
Definition
sedative
Term
thalidomide's complex immune effects include...
Definition
suppress TNF production, ^ IL-10, reduced neutrophil phagocytosis, altered adhesion molecule expression, enhanced cell-mediated immunity
Term
Which drug has complex immune effects that include the following: suppress TNF production, ^ IL-10, reduced neutrophil phagocytosis, altered adhesion molecule expression, enhanced cell-mediated immunity
Definition
thalidomide
Term
Thalidomide is used for...
Definition
some forms of leprosy reactions, immunologic disease, anticancer drug, aphthous ulcers and wasting syndrome in AIDS
Term
which drug is used for some forms of leprosy reactions, immunologic disease, anticancer drug, aphthous ulcers and wasting syndrome in AIDS?
Definition
thalidomide
Term
What is alefacept?
Definition
an engineered protein that blocks CD2 on T cells
Term
which drug is an engineered protein that blocks CD2 on T cells?
Definition
alefacept
Term
alefacept contains the CD2-binding region of ____ fused to a human _______.
Definition
LFA-3, IgG Fc region
Term
What is the effect of alefacept?
Definition
inhibits T cell activation
Term
alefacept is approved for tx of...
Definition
psoriasis
Term
You have to monitor _____ counts when using alefacept
Definition
T cell
Term
What types of antisera directed against lymphocytes are available?
Definition
ALG and ATG
Term
What are ALG and ATC?
Definition
antisera - antilymphocyte globulin and antithymocyte globulin
Term
How to ALG and ATG work?
Definition
bind T cells, destroyed by complement, block cellular immunity, suppress organ graft rejection (cell mediated process)
Term
Which drugs bind T cells, destroyed by complement, block cellular immunity, and suppress organ graft rejection (cell mediated process)?
Definition
ALG and ATC
Term
What are ALG and ATG used for?
Definition
used before BMT to prevent GVHD
Term
because humor immunity can remain intact, injection of ALG and ATG can cause...
Definition
hypersensitivity reactions, serum sickness, anaphylaxis. also pain and erythema at injection site, lymphoma has been noted as late complication
Term
Which drugs can cause hypersensitivity reactions, serum sickness, anaphylaxis (mediated by humoral immunity), and also pain and erythema at injection site, and lymphoma as late complication?
Definition
ALG and ATC
Term
What is RhoGAM?
Definition
human IgG, Abs against Rho(D) antigens on RBCs
Term
Which drug contains human IgG, Abs against Rho(D) antigens on RBCs?
Definition
RhoGAM
Term
Who gets RhoGAM? Why?
Definition
Rho(D)-negative moms at time of antigen exposure (birth of RhoD positive baby), to block the primary immune response to the foreign cells
Term
What does RhoGAM prevent?
Definition
hemolytic disease of the newborn, production of maternal antibodies to Rh-positive cells in subsequent pregnancies
Term
What is Muromonab?
Definition
MAb that binds CD3 on T cells
Term
Which drug is a MAb that binds CD3 on T cells?
Definition
muromonab
Term
What is muromonab used for?
Definition
renal transplant rejection crises
Term
which drug is used for renal transplant rejection crises?
Definition
muromonab
Term
First dose effects of muromonab include...
Definition
fever, chills, dyspnea, pulm edema, hypersensitivity rxns may occur
Term
The first dose effects of _____ include, fever, chills, dyspnea, pulm edema, and possible hypersensitivity rxns
Definition
muromonab
Term
what is Daclizumab?
Definition
MAb that binds alpha subunit of IL-2 receptor on T cells and prevents activation by IL-2
Term
Which drug is a MAb that binds alpha subunit of IL-2 receptor on T cells and prevents activation by IL-2?
Definition
daclizumab
Term
What is daclizumab used for? What are its toxicities?
Definition
prevent renal transplant rejection, toxicity equal to placebo!
Term
Which drug is used to prevent renal transplant rejection and has toxicity equal to placebo (!)?
Definition
daclizumab
Term
What is basiliximab?
Definition
chimeric human mouse IgG with an action equivalent to daclizumab
Term
Which drug is A chimeric human mouse IgG with an action equivalent to daclizumab?
Definition
basiliximab
Term
What is infliximab?
Definition
humanized MAb, targeted against TNFa (like etanercept)
Term
Which drug is a humanized MAb, targeted against TNFa (like etanercept)?
Definition
infliximab
Term
What is infliximab used for?
Definition
Crohn's, RA, UC, ankylosing spondylitis, psoriatic arthritis
Term
Which drug is used for Crohn's, RA, UC, ankylosing spondylitis, psoriatic arthritis?
Definition
infliximab
Term
What side/adverse effects may occur with infliximab?
Definition
infusion reactions and increased rate of infection
Term
What is adalimumab?
Definition
completely human IgG MAb that binds TNFa
Term
Which drug is a completely human IgG MAb that binds TNFa?
Definition
adalimumab
Term
Adalimumab is approved for the treatment of...
Definition
RA
Term
Aldesleukin is a recombinant form of which IL? What does that IL do?
Definition
IL-2, promotes production of CTLs and activates NK cells
Term
What is aldesleukin indicated for?
Definition
adjunctive tx of renal cell carcinoma and melanoma
Term
which drug is approved for adjunctive tx of renal cell carcinoma and melanoma?
Definition
aldesleukin
Term
IFNa-2a inhibits ________ and is used in ______________________.
Definition
cell proliferation, HCL, CML, MM, Kaposi's, Hep B and C
Term
Which IFN inhibits cell proliferation and is used in HCL, CML, MM, Kaposi's, Hep B and C?
Definition
IFNa-2a
Term
IFNb-1b has beneficial effects in...
Definition
relapsing MS
Term
Which IFN has beneficial effects in relapsing MS?
Definition
IFNb-1b
Term
IFNy-1b has greater _____ actions than the others and appears to act by _____________. Recombinant form is used in pts with ________.
Definition
immune-enhancing, increasing synthesis of TNF, CGD
Term
Which IFN seems to have greater immune-enhancing actions than the others, may work by increasing synthesis of TNF, and is used in pts with CGD?
Definition
IFNy-1b
Term
What is BCG used for?
Definition
immunization against TB and as an immunostimulant in the tx of superficial bladder cancer
Term
Which drug is used for immunization against TB and as an immunostimulant in the tx of superficial bladder cancer?
Definition
BCG
Term
The efficacy of BCG may be due to...
Definition
activation of macs and enhancement of immune response
Term
Which drug may work by activating macs and enhancement of immune response?
Definition
BCG
Term
Type 1 (immediate) hypersensitivity involves...
Definition
IgE, animal and plant stings, pollens, drugs, anaphylaxis, urticaria, angioedema, haptens linked to carrier proteins, B cell prolif -> IgE Abs, mast cells, basophils, histamine, kinins, PGs, LTs, PCNs, sulfonamides
Term
Name the type of hypersensitivity: IgE, animal and plant stings, pollens, drugs, anaphylaxis, urticaria, angioedema, haptens linked to carrier proteins, B cell prolif -> IgE Abs, mast cells, basophils, histamine, kinins, PGs, LTs, PCNs, sulfonamides
Definition
type 1
Term
Type II allergy involves...
Definition
IgG or IgM bound to circulating RBCs, reexposure -> complement-dependent lysis, autoimmune syndromes, hemolytic anemia from methyldopa, SLE from hydralazine or procainamide, thrombocytopenic purpura from quinidine, and agranulocytosis from exposure to many drugs
Term
Name the type of hypersensitivity response: IgG or IgM bound to circulating RBCs, reexposure -> complement-dependent lysis, autoimmune syndromes, hemolytic anemia from methyldopa, SLE from hydralazine or procainamide, thrombocytopenic purpura from quinidine, and agranulocytosis from exposure to many drugs
Definition
Type II
Term
Type III hypersensitivity involves...
Definition
complement-fixing IgM or IgG Abs and possibly IgE Abs, serum sickness, vasculitis, maybe SJ syndrome (sulfonamides)
Term
Name the type of hypersensitivity: complement-fixing IgM or IgG Abs and possibly IgE Abs, serum sickness, vasculitis, SJ syndrome (sulfonamides)
Definition
Type III
Term
Type IV allergy involves...
Definition
cell-mediated reaction, from topical application of drugs, contact dermatitis
Term
name the type of hypersensitivity response: cell-mediated reaction, from topical application of drugs, contact dermatitis
Definition
Type IV
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