Experimental murine model for autoimmune enterocolitis using Klebsiella pneumoniae O3 lipopolysaccharide as a potent immunological adjuvant

Noriko Paeng, Akiko Morikawa, Yutaka Kato, Tsuyoshi Sugiyama, Naoki Koide, Tomoaki Yoshida, Takashi Yokochi

研究成果: Article査読

8 被引用数 (Scopus)

抄録

An experimental model for autoimmune enterocolitis was produced in mice by repeated immunization of homologous colon extract together with Klebsiella O3 lipopolysaccharide (KO3 LPS) as an immunological adjuvant. Histological changes in the intestinal lesions were characterized by infiltration with polymorphonuclear leukocytes in the lamina propria, muscularis mucosae and submucosa of repeatedly immunized mice. No such intestinal lesions were produced in mice receiving injections of colon extract alone or KO3 LPS alone. Development of the autoantibody and delayed-type hypersensitivity against colon extract were found in mice immunized with the mixture of colon extract and KO3 LPS. Distinct positive staining was detected specifically on the columnar epithelium of villi. Sera from hyperimmunized mice defined organ-specific antigens present in the intestine. Therefore, it was suggested that the intestinal lesions might be caused by an autoimmune mechanism.

本文言語English
ページ(範囲)45-52
ページ数8
ジャーナルMICROBIOLOGY and IMMUNOLOGY
43
1
DOI
出版ステータスPublished - 1999
外部発表はい

All Science Journal Classification (ASJC) codes

  • 微生物学
  • 免疫学
  • ウイルス学

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