| 摘要 |
<p>Criteria for identifying potential B cell superantigens are disclosed, together with a method for determining whether these candidate antigens have B cell superantigenic activity. Methods for constructing and using a vaccine including B cell superantigens are also disclosed. Identification is based on characterizing the structure of Ig binding sites which interact with the candidate antigen, assessment of Ig V region diversity on binding of candidate and conventional antigens, confirmation of sAg activity in interactions between candidate antigens and whole cells, confirmation of whether the candidate antigen induces B cell mitogenesis, determination of the earliest point in B cell development where cellular co-factors are required for sAg activity and, for reference, determination of V region usage in responder populations. Once a B cell superantigen is characterized, it is purified and conjugated by chemical means to a polysaccharide or glycoprotein component from a microbial capsule, cell wall, envelope or other component preferably using components which stimulate production of antibodies with the same V region restriction as antibodies whose production is stimulated by the B cell superantigen.</p> |
