Volume 119, Issue 2 pp. 199-206
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In vivo effects of interferon-γ and anti-interferon-γ antibody on the experimentally induced lichenoid tissue reaction

T. SHIOHARA

Corresponding Author

T. SHIOHARA

Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan

Tetsuo Shiohara, Department of Dermatology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, Japan.Search for more papers by this author
B. J. NICKOLOFF

B. J. NICKOLOFF

Departments of Pathology and Dermatology, University of Michigan Medical Center, Ann Arbor, U.S.A.

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N. MORIYA

N. MORIYA

Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan

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C. GOTOH

C. GOTOH

Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan

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M. NAGASHIMA

M. NAGASHIMA

Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan

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First published: August 1988
Citations: 23

SUMMARY

We investigated the in vivo effect of recombinant interferon-γ (IFN-γ) and tumour necrosis factor α (TNF-α) treatment of mice on the development of the delayed-type hypersensitivity (DTH) reaction and lichenoid tissue reaction (LTR) following the local injection of cloned autoreactive T cells. Both the DTH reaction and the LTR were significantly enhanced by pre-treatment with IFN-γ, but not with TNF-ã. Induction of class II MHC antigens on keratinocytes was not essential for the enhancement by IFN-γ. Administration of anti-IFN-γ antibody reduced the DTH reaction and LTR, although complete inhibition was not observed with our treatment regimen. The ability of IFN-γ to increase the number of the cloned T cells invading the epidermis in vivo, is in keeping with our previous observation that IFN-γ treatment of cultured keratinocytes markedly increased the adherence reaction between T cells and keratinocytes in vitro.

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