The ability of CpG oligonucleotides to protect mice against Francisella tularensis live vaccine strain but not fully virulent F. tularensis subspecies holarctica is reflected in cell-based assays.

Abstract:

:CpG DNA is a potent activator of the innate immune system. Here the protective effects of CpG DNA are assessed against the facultative intracellular pathogen Francisella tularensis. Dosing of mice with CpG DNA provided protection against disease caused by F. tularensis subsp. holarctica live vaccine strain (LVS) but did not protect against the fully virulent F. tularensis subsp holarctica strain HN63. Similarly, in vitro studies in J774A murine macrophage-like cells demonstrated that stimulation with CpG DNA enables control of intracellular replication of LVS but not HN63. These data confirm findings that CpG DNA may have limited efficacy in providing protection against fully virulent strains of F. tularensis and also suggest that in vitro assays may be useful for the evaluation of novel treatments for virulent F. tularensis.

journal_name

Microb Pathog

journal_title

Microbial pathogenesis

authors

Rees DG,Hartley MG,Green M,Lukaszewski RA,Griffin KF,Atkins HS,Lyons R,Krieg AM,Titball RW

doi

10.1016/j.micpath.2013.04.013

subject

Has Abstract

pub_date

2013-10-01 00:00:00

pages

16-8

eissn

0882-4010

issn

1096-1208

pii

S0882-4010(13)00066-1

journal_volume

63

pub_type

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