pubmed.ncbi.nlm.nih.gov

Enterocolitis and colon cancer in interleukin-10-deficient mice are associated with aberrant cytokine production and CD4(+) TH1-like responses - PubMed

  • ️Mon Jan 01 1996

Enterocolitis and colon cancer in interleukin-10-deficient mice are associated with aberrant cytokine production and CD4(+) TH1-like responses

D J Berg et al. J Clin Invest. 1996.

Abstract

We have characterized the progressive stages of chronic intestinal inflammation that develops spontaneously in specific pathogen-free (SPF) mice with a targeted disruption in the IL-10 gene (IL-10-/-). Our longitudinal studies showed that inflammatory changes first appear in the cecum, ascending and transverse colon of 3-wk-old mutants. As the disease progressed, lesions appeared in the remainder of the colon and in the rectum. Some aged IL-10-/- mice also developed inflammation in the small intestine. Prolonged disease with transmural lesions and a high incidence of colorectal adenocarcinomas (60%) was observed in 6-mo-old mutants. Mechanistic studies have associated uncontrolled cytokine production by activated macrophages and CD4+ Th1-like T cells with the enterocolitis exhibited by IL-10-/- mice. A major role for a pathogenic Th1 response was further suggested by showing that anti-IFNgamma antibody (Ab) treatment significantly attenuated intestinal inflammation in young IL-10-/- mice. When weanlings were treated with IL-10, they failed to develop any signs of intestinal inflammation. Interestingly, IL-10 treatment of adults was not curative but did ameliorate disease progression. Our studies have also shown that inheritable factors strongly influence the disease susceptibility of IL-10-/- mice. In 3-mo-old mutants, intestinal lesions were most severe in IL-10-/- 129/SvEv and IL-10-/- BALB/c strains, of intermediate severity in the IL-10-/- 129 x C57BL/6J outbreds, and least severe in the IL-10-/- C57BL/6J strain.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Gastroenterology. 1995 May;108(5):1434-44 - PubMed
    1. J Immunol Methods. 1994 Sep 14;174(1-2):259-68 - PubMed
    1. Am J Clin Pathol. 1966 Feb;45(2):186-201 - PubMed
    1. J Clin Invest. 1990 Sep;86(3):972-80 - PubMed
    1. IARC Sci Publ. 1979;23:169-91 - PubMed

Publication types

MeSH terms

Substances