Enhanced Effects of Combined Bu-Zhong-Yi-Qi-Tang (TJ-41) and Interleukin-18 on the Production of Tumour Necrosis Factor-α and Interferon-γ in Human Peripheral Blood Mononuclear Cells

Author:

Tamura R12,Takahashi HK2,Xue D1,Kubo S12,Saito S1,Nishibori M2,Iwagaki H1,Tanaka N1

Affiliation:

1. Department of Gastroenterological Surgery, Transplant and Surgical Oncology, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan

2. Department of Pharmacology, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan

Abstract

Co-stimulatory molecules play important roles in immune responses. We investigated the effect of Bu-Zhong-Yi-Qi-Tang (TJ-41) on the expression of intercellular adhesion molecule-1 (ICAM-1), B7.1 and B7.2 by peripheral blood mononuclear cells stimulated by interleukin-18 (IL-18) using fluorescence-activated cell sorter analysis. TJ-41 increased IL-18-induced ICAM-1 and B7.2 expression, resulting in enhanced production of tumour necrosis factor-a and interferon-g. These results suggest that TJ-41 enhances IL-18-induced cell-mediated immunity and may enhance host defence mechanisms against pathogens.

Publisher

SAGE Publications

Subject

Biochemistry (medical),Cell Biology,Biochemistry,General Medicine

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