Adjuvant effects for oral immunization provided by recombinant Lactobacillus casei secreting biologically active murine interleukin-1{beta}.

Clinical and Vaccine Immunology : CVI
Akinobu KajikawaShizunobu Igimi

Abstract

Vaccine delivery systems using lactic acid bacteria are under development, but their efficiency is insufficient. Autologous cytokines, such as interleukin-1beta (IL-1beta), are potential adjuvants for mucosal vaccines and can be provided by recombinant lactic acid bacteria. The aim of this study was the construction and evaluation of recombinant Lactobacillus casei producing IL-1beta as an adjuvant delivery agent. The recombinant strain was constructed using an expression/secretion vector plasmid, including a mature IL-1beta gene from mouse. The biological activity of the cytokine was confirmed by IL-8 production from Caco-2 cells. In response to the recombinant L. casei secreting IL-1beta, expression of IL-6 was detected in vivo using a ligated-intestinal-loop assay. The release of IL-6 from Peyer's patch cells was also detected in vitro. Intragastric immunization with heat-killed Salmonella enterica serovar Enteritidis (SE) in combination with IL-1beta-secreting lactobacilli resulted in relatively high SE-specific antibody production. In this study, it was demonstrated that recombinant L. casei secreting bioactive murine IL-1beta provided adjuvant effects for intragastric immunization.

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Citations

Jun 19, 2012·Applied and Environmental Microbiology·Lasse FredriksenGeir Mathiesen
Feb 4, 2012·Disease Models & Mechanisms·Masayuki NakanoHisao Kurazono
Jan 1, 2011·Bioscience and Microflora·Kazuya MasudaShizunobu Igimi
Jan 1, 2011·Bioscience and Microflora·Akinobu Kajikawa, Shizunobu Igimi
Dec 2, 2011·Annual Review of Food Science and Technology·Jerry Wells
Dec 31, 2015·BMC Biotechnology·Jeevanathan KalyanasundramKhatijah Yusoff
Jan 19, 2013·Bioengineered·Mary Anne Roshni Amalaradjou, Arun K Bhunia
Apr 6, 2019·Current Microbiology·Agata GórskaJulita Kulbacka
Oct 19, 2019·Vaccines·Allison C Vilander, Gregg A Dean

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