Questions:

Q1. Immune system may not have access to the tumor cells because of antigen masking effect of ----------- molecules.

Q2. Tumor cells do not express ---------- molecules so they may not elicit effective T cell immune response.

Q3. Tumor antigens can be used as a ----------- for the infected individuals.

Q4. T- Cell immunity can be lowered by the presence of regulatory---------.

Q5. M2 macrophages are associated with progression of ---------growth

Q6. transfer of hematopoietic stem cell transplants combined with alloreactive T cells help in elimination of tumor.(True/False)

Q7. Tumor cells are highly prone to mutation due to --------mitotic rate and hence the antigen expression may change.

 

Answers:

• 1.  Glycocalyx

  2.  Class II MHC

  3.  Vaccine

  4.  T cells

  5.  Tumor

  6.  True

  7.  Increased