How Does Alefacept Function to Reduce Lesions in Plaque Psoriasis

question 5

Multiple Choice

How does alefacept function to reduce lesions in plaque psoriasis?

• A) By blocking CD28/B7 interactions and causing T cell apoptosis
• B) By blocking CTLA-4/B7 interactions and causing T cell apoptosis
• C) By blocking CD2/CD58 interactions and preventing T cell activation
• D) By binding to CD3 on activated T cells and preventing T cell activation

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Definitions:

Sink

A basin used for washing and typically connected to a water supply and drainage system.

Xylem

The tissue in plants that transports water and some nutrients from the roots to the leaves.

Bundle Scars

Marks left on the stem of a plant where vascular bundles or leaf traces have broken off or been removed.

Leaf Scar

Marks on a stem left when the petiole of a leaf breaks during abscission.