What is the difference between T dependent antigen and T independent antigen? ...?

1 answer:

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The non-protein microbial antigens can not stimulate classical T cell response by themselves, but they are able to elicit the production of antibodies, so that is why we call them T or thymus independent antigens. T independent antigens are divided into 2 classes by the mechanism of activating B cells. TI-1 antigen.

For most protein antigens, the production of antibodies by B lymphocytes isdependent on stimulation of helper T cells. However bacterial polysaccharides and lipopolysaccharides, and some polymeric proteins, can stimulate B lymphocytes without involvement of helper T cells.

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