Question

What is the difference between tumour specific antigen and tumour associated antigens.

Answer 1

Tumour antigens are those presented by MHC class I or II molecules on the surface of tumour cells. These antigens are sometimes presented only by tumour cells and never by normal cells. In this case, they are called tumour-specific antigens (TSAs) and typically result from a tumour-specific mutation.

Answer 2

Answer:

Superantigens (SAgs) are a class of antigens that result in excessive activation of the immune system.Antigenic drift is a kind of genetic variation in viruses, arising by the accumulation of mutations in the virus genes that code for virus-surface proteins that host antibodies recognize.

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