Outer membrane vesicles and uses thereof

The present invention discloses a Gram negative bacterium in which the expression of a protein involved in LPS transport to the outer membrane is functionally downregulated such that the level of LPS in the outer membrane is decreased compared to a wild-type Gram negative bacterium. Down regulation...

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Bibliographic Details
Main Authors POOLMAN JAN, TEFSEN BORIS, BOS MARTINE PETRONELLA, TOMMASSEN JOHANNES PETRUS MARIA
Format Patent
LanguageEnglish
Published 08.12.2009
Subjects
CHEMISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PEPTIDES
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Summary:The present invention discloses a Gram negative bacterium in which the expression of a protein involved in LPS transport to the outer membrane is functionally downregulated such that the level of LPS in the outer membrane is decreased compared to a wild-type Gram negative bacterium. Down regulation of Imp and MsbA proteins can result in such a bacterium. Outer membrane vesicle preparations derived from the Gram negative bacterium of the invention can be used in vaccines to provide protection against bacterial infection.
Bibliography:Application Number: US20060584362