A mouse model for the human pathogen Salmonella typhi.
A mouse model for the human pathogen Salmonella typhi.
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DOI:
10.1016/j.chom.2010.09.003
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发表时间:
2010-10-21
影响因子:
30.3
通讯作者:
Galán JE
中科院分区:
文献类型:
--
作者:
Song J;Willinger T;Rongvaux A;Eynon EE;Stevens S;Manz MG;Flavell RA;Galán JE
Salmonella enterica serovar Typhi (S. Typhi) is the cause of typhoid fever, a life-threatening disease of humans. The lack of an animal model due to S. typhi's strict human host specificity has been a significant obstacle in the understanding of its pathogenesis and the development of a safe and effective vaccine against typhoid fever. We report here the development of a mouse model for S. Typhi infection. We showed that immunodeficient Rag2 -/- γc -/- mice engrafted with human fetal liver hematopoietic stem and progenitor cells were able to support S. Typhi replication and persistent infection. A S. Typhi strain carrying a mutation in a gene required for its virulence in humans was not able to replicate in these humanized mice. In contrast, another mutant strain unable to produce the recently identified typhoid toxin, exhibited increased replication suggesting a potential role for this toxin in the establishment of persistent infection. Furthermore, infected animals mounted a human innate and adaptive immune response to S. Typhi resulting in the production of cytokines and pathogen-specific antibodies. These results therefore indicate that this animal model can be used to study S. Typhi pathogenesis and to evaluate potential vaccine candidates against typhoid fever.
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影响因子:
4
作者:
Galen, James E;Pasetti, Marcela F;Tennant, Sharon;Ruiz-Olvera, Patricia;Sztein, Marcelo B;Levine, Myron M
通讯作者:
Levine, Myron M
DOI:
10.1038/nrg2703
发表时间:
2010-01
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
影响因子:
15.3
作者:
Monack, DM;Bouley, DM;Falkow, S
通讯作者:
Falkow, S
DOI:
10.1016/j.clim.2009.12.008
发表时间:
2010-04
期刊:
Clinical immunology (Orlando, Fla.)
影响因子:
--
作者:
Brehm MA;Cuthbert A;Yang C;Miller DM;DiIorio P;Laning J;Burzenski L;Gott B;Foreman O;Kavirayani A;Herlihy M;Rossini AA;Shultz LD;Greiner DL
通讯作者:
Greiner DL
DOI:
10.1086/649541
发表时间:
2010-01-15
期刊:
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
影响因子:
--
作者:
Crump JA;Mintz ED
通讯作者:
Mintz ED