INDUCTION OF RESISTANCE TO SCHISTOSOMA-MANSONI BY NATURAL CORD FACTOR AND SYNTHETIC LOWER HOMOLOGS
INDUCTION OF RESISTANCE TO SCHISTOSOMA-MANSONI BY NATURAL CORD FACTOR AND SYNTHETIC LOWER HOMOLOGS
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DOI:
10.1093/infdis/141.4.473
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发表时间:
1980-01-01
影响因子:
6.4
通讯作者:
MAHMOUD, AAF
中科院分区:
文献类型:
--
作者:
OLDS, GR;CHEDID, L;MAHMOUD, AAF
Resistance to schistosomiasis in mice can be acquired specifically by primary infection with S. mansoni or non-specifically by treatment with a variety of unrelated agents such as BCG. Several immunoadjuvants related to mycobacteria were examined for their ability to induce resistance to schistosomiasis. Natural cord factor (6,6''-trehalose dimycolate), a 100-carbon synthetic cord factor analog and dipalmitate trehalose induced significant protection. Trehalose dibehenate and muramyl dipeptide did not induce consistent protection. Since protection acquired by primary schistosomal infection or by any of these potentiating agents is partial, their possible additive effect was evaluated. The resistance of mice with schistosomiasis that were injected with trehalose dipalmitate and challenged with schistosomal cercariae was increased, as assayed by recovery of schistosomula from the lungs and of adult worms from the portal system. These synthetic adjuvants induce partial protection against schistosomiasis and significantly enhance acquired immunity in mice with primary infections.