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1996-02-26
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Document 0474
DOCN M9620474
TI Antibodies to interleukin 12 abrogate established experimental colitis
in mice.
DT 9602
AU Neurath MF; Fuss I; Kelsall BL; Stuber E; Strober W; Mucosal Immunity
Section, National Institutes of Health/National; Institute of Allergy
and Infectious Diseases/LCI, Bethesda,; Maryland 20892-1890, USA.
SO J Exp Med. 1995 Nov 1;182(5):1281-90. Unique Identifier : AIDSLINE
MED/96042126
AB In this study, we describe a novel murine model of chronic intestinal
inflammation induced by the hapten reagent 2,4,6-trinitrobenzene
sulfonic acid (TNBS). Rectal application of low doses of TNBS in BALB/c
and SJL/J mice resulted in a chronic transmural colitis with severe
diarrhea, weight loss, and rectal prolapse, an illness that mimics some
characteristics of Crohn's disease in humans. The colon of TNBS-treated
mice on day 7 was marked by infiltration of CD4+ T cells; furthermore,
in situ polymerase chain reaction studies revealed high levels of
interferon (IFN)-gamma mRNA in diseased colons. Isolated lamina propria
(LP) CD4+ T cells from TNBS-treated mice stimulated with anti-CD3 and
anti-CD28 antibodies exhibited a Th1 pattern of cytokine secretion: a
20-50-fold increase in IL-2 and IFN-gamma levels and a 5-fold decrease
in IL-4 levels as compared with those of stimulated LP CD4+ T cells from
control BALB/c mice. Administration of monoclonal anti-IL-12 antibodies
to the TNBS-treated mice both early (at 5 d) and late (at 20 d) after
induction of colitis led to a striking improvement in both the clinical
and histopathological aspects of the disease and frequently abrogated
the established colitis completely. Furthermore, LP CD4+ T cells
isolated from anti-IL-12-treated mice failed to secrete IFN-gamma upon
in vitro stimulation. In summary, the data demonstrate the pivotal role
of IL-12 and IFN-gamma in a TNBS-induced murine model of chronic
intestinal inflammation. Furthermore, they suggest the potential utility
of anti-IL-12 antibodies in patients with Crohn's disease.
DE Animal Antibodies, Monoclonal/IMMUNOLOGY/*THERAPEUTIC USE Base
Sequence Colitis/CHEMICALLY INDUCED/*IMMUNOLOGY
Colon/IMMUNOLOGY/PATHOLOGY *Crohn Disease CD4 Lymphocyte Count
*Disease Models, Animal Interferon Type II/PHYSIOLOGY
Interleukin-12/*ANTAGONISTS & INHIB/IMMUNOLOGY/PHYSIOLOGY Lymphocyte
Transformation Mice Mice, Inbred BALB C Mice, Inbred Strains
Molecular Sequence Data Spleen/IMMUNOLOGY/PATHOLOGY
Trinitrobenzenesulfonic Acid/TOXICITY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).