Multiple choice

Which among the following types of cells are best known to be involved in the initial presentation of antigen to T lymphocytes in a human blood?

  1. Dendritic cells

  2. Plasma cells

  3. Neutrophil polymorphonuclear leucocytes

  4. Erythrocytes

  5. Platelets
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A Correct answer
Explanation

Dendritic cells are professional antigen processing cells. They have a number of receptors that enhance the uptake of antigens, and they are specialized to convert these antigens into MHC-peptide complexes that can be recognized by lymphocytes. There are several types of dendritic cells, well distributed over the body.

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