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Animal Science Journal 2020-Jan

Oral priming with oligodeoxynucleotide particles from Lactobacillus rhamnosus GG attenuates symptoms of dextran sodium sulfate-induced acute colitis in mice

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Suguru Shigemori
Fu Namai
Tasuku Ogita
Takashi Sato
Takeshi Shimosato

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Abstrakt

Here, we investigated the effect of prophylactic oral treatment with carbonate apatite-based particles (ID35caps) containing Lactobacillus rhamnosus GG-derived immunostimulatory oligodeoxynucleotides (ID35) when used in mice with acute colitis. Mice were administered orally with control particles (carbonate apatite particles, Caps), ID35, or ID35caps for 2 days, and then were given free access to drinking water containing 3% (w/v) dextran sodium sulfate (DSS) for 5 days (Days 0-5) to induce acute colitis. Body weight change, fecal bleeding, and stool consistency were monitored and scored as a disease activity index (DAI) to assess symptoms of colitis. On Day 10, animals were euthanized and the colon length was measured to evaluate inflammatory tissue injury. Prophylactic oral treatment with ID35caps significantly suppressed DSS-induced elevation of the DAI score and shortening of the colon compared to the respective parameters in DSS-exposed mice treated with Cap or ID35. We conclude that oral priming with ID35caps attenuates symptoms and inflammatory colonic injury in a mouse model of DSS-induced acute colitis. This finding suggests that ID35caps may be a new oral agent for preventing intestinal inflammation.

Keywords: CpG-oligodeoxynucleotide; Lactobacillus rhamnosus GG; carbonate apatite-based particles; oral priming; probiotics.

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