Protective effect on Leishmania major infection of migration inhibitory factor, TNF-α, and IFN-γ, administered orally via attenuated Salmonella typhimurium

Damo Xu, Stephen J Mcsorley, Lawrence Tetley, Stephen Chatfield, Gordon Dougan, W. Ling Chan, Abhay Satoskar, John R. David, Foo Y. Liew

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

The genes encoding murine macrophage migration inhibitory factor (MIF), IL-2, IFN-γ or TNF-α were cloned individually into an expression plasmid under the control of the inducible promoter nirB and transfected into the aroA-aroD- deletion mutant strain of Salmonella typhimurium (BRD509). These S. typhimurium derivatives (henceforward called constructs and termed GIDMIF, GIDIL2, GIDIFN and GIDTNF) expressed their respective cytokines in vitro under anaerobic conditions and stably colonized BALB/c mice up to 14 days after oral administration. The highly susceptible BALB/c mice that had received the constructs orally and that had been subsequently infected via the footpad with Leishmania major, developed significantly reduced disease compared with control mice administered the untransfected Salmonella strain (BRD509). Importantly, a combination of GIDMIF, GIDIFN, and GIDTNF administered orally after L major infection was able to significantly limit lesion development and reduced parasite loads by up to three orders of magnitude. Spleen and lymph node cells of mice administered this combination expressed markedly higher levels of inducible nitric oxide synthase (iNOS) compared with those from mice receiving an equivalent dose of the control strain of Salmonella (BRD509). These data therefore demonstrate the feasibility of therapeutic treatment in an infectious disease model using cytokines delivered by attenuated Salmonella. The protective elect observed correlates with the induction of inducible nitric oxide synthase in vivo.

Original languageEnglish (US)
Pages (from-to)1285-1289
Number of pages5
JournalJournal of Immunology
Volume160
Issue number3
StatePublished - Feb 1 1998
Externally publishedYes

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Leishmania major
Salmonella typhimurium
Salmonella
Infection
Nitric Oxide Synthase Type II
Parasite Load
Cytokines
Macrophage Migration-Inhibitory Factors
Interleukin-2
Communicable Diseases
Oral Administration
Plasmids
Spleen
Lymph Nodes
Therapeutics
Genes

ASJC Scopus subject areas

  • Immunology

Cite this

Protective effect on Leishmania major infection of migration inhibitory factor, TNF-α, and IFN-γ, administered orally via attenuated Salmonella typhimurium. / Xu, Damo; Mcsorley, Stephen J; Tetley, Lawrence; Chatfield, Stephen; Dougan, Gordon; Chan, W. Ling; Satoskar, Abhay; David, John R.; Liew, Foo Y.

In: Journal of Immunology, Vol. 160, No. 3, 01.02.1998, p. 1285-1289.

Research output: Contribution to journalArticle

Xu, D, Mcsorley, SJ, Tetley, L, Chatfield, S, Dougan, G, Chan, WL, Satoskar, A, David, JR & Liew, FY 1998, 'Protective effect on Leishmania major infection of migration inhibitory factor, TNF-α, and IFN-γ, administered orally via attenuated Salmonella typhimurium', Journal of Immunology, vol. 160, no. 3, pp. 1285-1289.
Xu, Damo ; Mcsorley, Stephen J ; Tetley, Lawrence ; Chatfield, Stephen ; Dougan, Gordon ; Chan, W. Ling ; Satoskar, Abhay ; David, John R. ; Liew, Foo Y. / Protective effect on Leishmania major infection of migration inhibitory factor, TNF-α, and IFN-γ, administered orally via attenuated Salmonella typhimurium. In: Journal of Immunology. 1998 ; Vol. 160, No. 3. pp. 1285-1289.
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