Patent classifications
C12Y306/01054
Bordetella vaccines comprising LPS with reduced reactogenicity
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.
Bordetella vaccines comprising LPS with reduced reactogenicity
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.
Defined enzymatic synthesis of lipid A analogs
Provided herein include methods and compositions for synthesis of Lipid IV.sub.A and derivatives thereof, using a defined set of pathway enzyme, which may be isolated and used to reconstitute all or part of the pathway in a cell-free reaction.
DEFINED ENZYMATIC SYNTHESIS OF LIPID A ANALOGS
Provided herein include methods and compositions for synthesis of Lipid IV.sub.A and derivatives thereof, using a defined set of pathway enzyme, which may be isolated and used to reconstitute all or part of the pathway in a cell-free reaction.