申请人:De Staat der Nederlanden, vert. door de minister van VWS, Ministerie van Volksgezondheid, Welzijn en Sport
公开号:US11291713B2
公开(公告)日:2022-04-05
The current invention lies in the field of medicine and more specifically in the field of vaccinology. The current invention concerns a novel Bordetella LPS and a modified bacterium of the genus Bordetella comprising such modified LPS. The LPS of the invention has a reduced endotoxicity in comparison to an unmodified Bordetella LPS. The modified LPS of the invention is therefore particularly suitable for use in inducing or stimulating an immune response in a subject, wherein the immune response is induced or stimulated against a Bordetella infection. The modified Bordetella LPS of the invention is obtainable by introducing in a Bordetella cell the expression of a heterologous acyl transferase. In particular, the modified Bordetella cell of the invention has an increased expression of an heterologous LpxA, LpxL or LpxD acyl transferase.
本发明属于医学领域,更具体地说属于疫苗学领域。本发明涉及一种新型博德特氏菌 LPS 和包含这种改良 LPS 的改良博德特氏菌属细菌。本发明的 LPS 与未改良的博德特氏菌 LPS 相比,具有更低的内毒素。因此,本发明的改良 LPS 特别适用于诱导或刺激受试者的免疫反应,其中免疫反应是针对博德特氏菌感染诱导或刺激的。本发明的改良博德特氏菌 LPS 可通过在博德特氏菌细胞中引入异源酰基转移酶的表达来获得。特别是,本发明的改良波氏杆菌细胞具有异源 LpxA、LpxL 或 LpxD酰基转移酶表达量的增加。