Abstract:
:The monoclonal antibodies (MoAbs) KS3 and KS4 are secreted by hybridomas constructed with splenocytes from a BALB/c mouse sequentially immunized with the cultured lymphoid cells JKu and LG-2 which share only the HLA-B27 specificity. Serologic and immunochemical assays have shown that the two MoAbs recognize the same (or spatially close) determinant expressed by HLA-B7,B27,Bw42,Bw54,Bw55,Bw56,Bw67, and Bw73 alloantigens. This determinant is spatially close but distinct from those defined by the anti HLA-B27 monoclonal antibodies described in the literature. The syngeneic antiidiotypic MoAb T12-105 and T12-211 elicited with MoAb KS4 were shown to recognize idiotopes within the antigen combining site of MoAb KS3 and KS4. Neither idiotope was detected on the anti HLA class I and anti HLA class II monoclonal antibodies tested. The MoAb KS4 in combination with the anti human beta 2-microglobulin MoAb NAMB-1 was utilized to develop a double determinant immunoassay (DDIA). The latter represents a sensitive method to detect and quantitate HLA-B27 antigens in spent culture medium of lymphoid cell lines and in serum. Typing for HLA-B27 antigens with the DDIA of sera from HLA typed donors yielded results highly correlated with those of the conventional lymphocytotoxicity assay.
journal_name
Hum Immunoljournal_title
Human immunologyauthors
Sakaguchi K,Ono R,Tsujisaki M,Richiardi P,Carbonara A,Park MS,Tonai R,Terasaki PI,Ferrone Sdoi
10.1016/0198-8859(88)90071-7subject
Has Abstractpub_date
1988-03-01 00:00:00pages
193-207issue
3eissn
0198-8859issn
1879-1166pii
0198-8859(88)90071-7journal_volume
21pub_type
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