Cancer Cells Can Be Detected by NK Cells When They

Question

Cancer cells can be detected by NK cells when they show
A) interferons.
B) complement proteins.
C) tumor-specific antigens.
D) opsonization.
E) CD4 markers.

Accepted Answer

NK cells can detect cancer cells by recognizing the presence of tumor-specific antigens on their surface. These antigens are not found on normal healthy cells and are therefore a target for immune surveillance. Interferons, complement proteins, opsonization, and CD4 markers are all involved in immune responses, but are not specific to cancer cell detection.