DE STAAT DER NEDERLANDEN; VERT. DOOR DE MINISTER VAN VWS; WELZIJN EN SPORT; MINISTERIE VAN VOLKSGEZONDHEID
发明人:
ZARIRI, AFSHIN,PUPO ESCALONA, ELDER,VAN DER LEY, PETER ANDRE
申请号：
CA3011282
公开号：
CA3011282A1
申请日:
2017.01.27
申请国别(地区):
CA
年份:
2017
代理人:
摘要：
The present invention relates to neisserial LPS having a tetra-acylated lipid A moiety, wherein the tetra-acylated lipid A moiety is modified as compared to the lipid A moiety of a wild-type neisserial LPS in that it lacks one of the secondary acyl chains and lacks a primary acyl chain on the 3-position of the glucosamine at the reducing end of the lipid A moiety. The invention further relates to neisserial bacteria that have been genetically modified to reduce expression of either one of the endogenous lpxL1or lpxL2 genes and to introduce expression of a heterologous pagL gene. The neisserial LPS of the invention has TLR4 agonist properties and is therefore useful in compositions for inducing or stimulating immune responses, such as vaccines, as well as in other forms of immunotherapy.
