BACKGROUND: Helminth infection has been proven to reduce the severity of experimental inflammatory bowel disease (IBD). The excretory-secretory proteins of helminths play an important role in the process of immunomodulation. AIMS: In the present study, we aimed to investigate the protective potential of recombinant Trichinella spiralis (TS) 53-kDa protein (rTsP53), a component of excretory-secretory proteins, on experimental colitis in mice. METHODS: BALB/c mice were treated subcutaneously with 50 μg rTsP53 three times at an interval of 5 days. Colitis was induced by intrarectal administration of 5 mg trinitrobenzene sulfonic acid (TNBS). Disease activities and macroscopic and microscopic scores were evaluated. To determine immune response provoked by rTsP53, we measured specific IgG1 and IgG2a values against rTsP53 in sera of mice. We also detected cytokine profiles as well as the markers of alternatively activated macrophages (M2) in mice. RESULTS: RTsP53 ameliorated significantly the disease activity index (DAI) as well as the macroscopic and microscopic scores. IgG1 but not IgG2a was the predominant specific antibody detected in the sera of immunized mice, indicating the potential of stimulating T-helper (Th) 2 bias response by rTsP3. Pre-treatment with rTsP53 decreased serum Th1 cytokines (TNF-a, IFN-γ) and elevated serum levels of serum Th2 cytokines (IL-4, IL-13); it also decreased colonic Th1 cytokines (TNF-α, IL-6) and colonic regulatory cytokines (IL-10, TGF-β1). RTsP53 increased colonic M2 markers, arginase-1 (Arg-1), and found in inflammatory zone 1 (FIZZ1), compared to mice without rTsP53 pretreatment. CONCLUSIONS: RTsP53 is a potential protective agent for IBD.
BACKGROUND:Helminth infection has been proven to reduce the severity of experimental inflammatory bowel disease (IBD). The excretory-secretory proteins of helminths play an important role in the process of immunomodulation. AIMS: In the present study, we aimed to investigate the protective potential of recombinant Trichinella spiralis (TS) 53-kDa protein (rTsP53), a component of excretory-secretory proteins, on experimental colitis in mice. METHODS: BALB/c mice were treated subcutaneously with 50 μg rTsP53 three times at an interval of 5 days. Colitis was induced by intrarectal administration of 5 mg trinitrobenzene sulfonic acid (TNBS). Disease activities and macroscopic and microscopic scores were evaluated. To determine immune response provoked by rTsP53, we measured specific IgG1 and IgG2a values against rTsP53 in sera of mice. We also detected cytokine profiles as well as the markers of alternatively activated macrophages (M2) in mice. RESULTS: RTsP53 ameliorated significantly the disease activity index (DAI) as well as the macroscopic and microscopic scores. IgG1 but not IgG2a was the predominant specific antibody detected in the sera of immunized mice, indicating the potential of stimulating T-helper (Th) 2 bias response by rTsP3. Pre-treatment with rTsP53 decreased serum Th1 cytokines (TNF-a, IFN-γ) and elevated serum levels of serum Th2 cytokines (IL-4, IL-13); it also decreased colonic Th1 cytokines (TNF-α, IL-6) and colonic regulatory cytokines (IL-10, TGF-β1). RTsP53 increased colonic M2 markers, arginase-1 (Arg-1), and found in inflammatory zone 1 (FIZZ1), compared to mice without rTsP53 pretreatment. CONCLUSIONS: RTsP53 is a potential protective agent for IBD.
Authors: Robert M Anthony; Joseph F Urban; Farhang Alem; Hossein A Hamed; Cristina T Rozo; Jean-Luc Boucher; Nico Van Rooijen; William C Gause Journal: Nat Med Date: 2006-07-30 Impact factor: 53.440
Authors: Nathalie E Ruyssers; Benedicte Y De Winter; Joris G De Man; Alex Loukas; Mark S Pearson; Joel V Weinstock; Rita M Van den Bossche; Wim Martinet; Paul A Pelckmans; Tom G Moreels Journal: Inflamm Bowel Dis Date: 2009-04 Impact factor: 5.325
Authors: Philip Smith; Niamh E Mangan; Caitriona M Walsh; Rosie E Fallon; Andrew N J McKenzie; Nico van Rooijen; Padraic G Fallon Journal: J Immunol Date: 2007-04-01 Impact factor: 5.422
Authors: Namdev S Togre; Priyanka S Bhoj; Vishal K Khatri; Aditya Tarnekar; Kalyan Goswami; Moreshwar R Shende; M V R Reddy Journal: Indian J Clin Biochem Date: 2017-09-15
Authors: José L Reyes; Fernando Lopes; Gabriella Leung; Nicole L Mancini; Chelsea E Matisz; Arthur Wang; Emma A Thomson; Nicholas Graves; John Gilleard; Derek M McKay Journal: Infect Immun Date: 2016-11-18 Impact factor: 3.441