Thymus-Independent
Antigens
Types of antigens: - continued
6.Thymus-independent
- no T cell help needed
˜bacterial
polysaccharides
˜certain
polymerized proteins:
˜appear to
stimulate B lymphocytes directly
˜IgM type
antibodies only
˜no memory
produced
˜current
research has found that there is still some T lymphocyte involvement
