Question

Which of these bioactive compounds is used as an immunosuppressive agent in organ-transplant patients?

• A. Acetic acid
• B. Ethanol
• C. Cyclosporine A
• D. Pectinase

Hint:

\textbf{Cyclosporine A} is a well-known immunosuppressive drug widely used in organ transplantation.

Answer 1

The Correct Option is C

Step 1: Immunosuppressive agents are substances that reduce or suppress the immune response.
Step 2: During organ transplantation, the recipient’s immune system may recognize the transplanted organ as foreign and try to reject it.
Step 3: Cyclosporine A is a bioactive compound produced by the fungus \textit{Trichoderma polysporum}.
Step 4: It selectively suppresses T-lymphocyte activity, thereby preventing organ rejection in transplant patients.
Step 5: The other options are incorrect:

Acetic acid and ethanol are not immunosuppressants.
Pectinase is an enzyme used in fruit juice clarification.