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immuno/cancer drugs
Question | Answer |
---|---|
Cyclsporine: Mechanism | Blocks T cell differentiation by binding to cyclophilins and inhibiting calcineurin. Calcineurin helps to produce Il-2 and it's receptor. |
Cyclosporine: clinical use | Suppresses organ rejection after transplantation |
Cyclsporine: toxicity | Predisposes patients to viral infections, lymphoma; nephrotoxic (give mannitol diuresis) |
Tacrolimus (aka __): mechanism | FK506. Inhibits IL-2 and other cytokines. Binds to Fk-binding proteins |
What are the two immunosuppresants that work by blocking IL-2 release? | Cyclosporin, Tacrolimus |
Azothioprine: mechanism | antimetabolite precursor of 6 mercaptopurine that interferes with teh metabolism of nucleic acids. toxic to lymphocytes |
Azothioprine: clinical use | Kidney transplantation, autoimmune disorders (glomerulonephritis, hemolytic anemia) |
Azothioprine: toxicity | BM suppression. ACtive metabolite mercaptopurine is metabolized by xanthine oxidase (therefore toxic effects may be increased by allopurinol) |
Muromonab-CD3 (aka ___): Mechanism | OKT3. Blocks T cell-signaling. Monoclonal antibody that binds to CD3 (epsilon chain) on the surface of T cells. It blocks the cellular interaction with CD3 protein responsible for T-cell signal transduction. |
Muronmonab-CD3: Toxicity | Cytokine release syndrome, hypersensitivty reaction |
Sirolimus (rapamycin): mechanism | Inhibits T-cell proliferation in resposne to IL-2. Binds to mTOR. |
Sirolimus (rapamycin): clinical use | Immunosuppression after kidney transplantation in combination with cyclosporine and corticosteroids |
Sirolimus (rapamycin): toxicity | Hyperlipidemia, thrombocytopenia, leukopenia |
Mycophenolate mofetil: Mechanism | Inhibits de novo guanine synthesis and blocks lymphocyte production |
Daclizumab: mechanism | monoclonal antibody with high affinity for IL-2 receptor on activated T-cells |
Aldesleukin (aka ___): clinical use | interleukin-2, Renal cell carcinoma, metastatic melanoma |
Erythopoietin (aka ___): clinical use | (epoietin), anemias, especially after renal failure |
Filgrastim (aka ___): clinical use | (granulocyte-CSF). recovery of bone marrow |
Sargramostin (aka ___): clinical use | granulocyte-macrophage CSF). Recovery of bone marrow |
alpha-interferon | Hep B/C, Kaposi's sarcoma, leukemias, malignant melanoma |
Beta interferon | Multiple sclerosis |
gamma interferon | Chronic granulomatous disease |
Oprelvekin (aka ___) | interleukin 11 (thrombocytopenia) |
Thrombopoietin | Thrombocytopenia |