WHOLE CHOLERA-TOXIN AND B-SUBUNIT ACT SYNERGISTICALLY AS AN ADJUVANT FOR THE MUCOSAL IMMUNE-RESPONSE OF MICE TO KEYHOLE LIMPET HEMOCYANIN
WHOLE CHOLERA-TOXIN AND B-SUBUNIT ACT SYNERGISTICALLY AS AN ADJUVANT FOR THE MUCOSAL IMMUNE-RESPONSE OF MICE TO KEYHOLE LIMPET HEMOCYANIN
复制标题
DOI:
10.1111/j.1365-3083.1990.tb02791.x
复制
发表时间:
1990-04-01
影响因子:
3.7
通讯作者:
STOKES, CR
中科院分区:
文献类型:
--
作者:
WILSON, AD;CLARKE, CJ;STOKES, CR
Cholera toxin (CT) is a potent stimulator of IgA responses when administered orally and has been shown to promote IgA responses to a second protein such as keyhole limpet haemocyanin (KLH) if this is fed simultaneously. In this paper we show that whilst feeding 5 mg KLH with either 0.5 .mu.g CT or 10 .mu.g B subunit fails to stimulate a mucosal IgA response to KLH, feeding 0.5 .mu.g CT and 10 .mu.g B subunit together with 5 mg KLH produces a local IgA anti-KLH response as great as that produced by 10 .mu.g of whole CT. In addition to stimulating IgA responses in the lamina propria, preliminary results indicate that cellular responses are also stimulated, as we have demonstrated KHL antigen-driven proliferation of cells isolated from groups of mice fed either 10 .mu.g CT + 5 mg KLH or 0.5 .mu.g CT + 10 .mu.g CTB + 5 mg KLH but not mice fed KLH alone or with either 10 .mu.g CTB or 0.5 .mu.g CT. These results indicate that the mucosal adjuvant action of CT is due to a synergistic effect involving both the GM1 binding of the B subunit and adenylate cyclase activation by the A subunit.