This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Targeted Anticancer Drugs and Immunosuppressants, Subject name: Pharmacology
[{'content': 'A widely used drug that suppresses cellular immunity, inhibits prostaglandin and leukotriene synthesis and increases the catabolism of IgG antibody is: \nSelect and explain. \nA. Cyclophosphamide, B. Prednisone, C. Cyclosporine, D. Infliximab', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Glucocoicoids are powerful immunosuppressants. These inhibit both cellular and humoral immunity by: * Decreasing the recruitment of immune cells. * Catabolism of immunoglobulins. * Inhibiting the enzyme phospholipase A2 resulting in decreased production of PGs, LTs and TXs.', 'role': 'assistant'}]