Impaired expression of innate immunity-related genes in IgG4-related disease: A possible mechanism in the pathogenesis of IgG4-RD

Takuji Nakamura*, Tomomi Satoh-Nakamura, Akio Nakajima, Takafumi Kawanami, Tomoyuki Sakai, Yoshimasa Fujita, Haruka Iwao, Miyuki Miki, Yasufumi Masaki, Toshiro Okazaki, Yasuhito Ishigaki, Mitsuhiro Kawano, Kazunori Yamada, Shoko Matsui, Takako Saeki, Terumi Kamisawa, Motohisa Yamamoto, Hideaki Hamano, Tomoki Origuchi, Shintaro HirataYoshiya Tanaka, Hiroto Tsuboi, Takayuki Sumida, Kazuichi Okazaki, Masao Tanaka, Tsutomu Chiba, Tsuneyo Mimori, Hisanori Umehara

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

6 被引用数 (Scopus)

抄録

Background: IgG4-related disease (IgG4-RD) is characterized by elevated serum IgG4 and tissue infiltration by IgG4-positive plasma cells. The pathogenesis of this disease is not clear. Transcriptome analysis was performed to identify genes over- and under-expressed in patients with IgG4-RD. Method: DNA microarray analysis was performed using RNA from peripheral blood mononuclear cells of two patients with IgG4-RD and four healthy individuals. Genes showing a greater than threefold change in expression in IgG4-RD patients following steroid therapy were identified. Four genes related to innate immunity such as transcobalamin I (TCN1), secretory leukocyte peptidase inhibitor (SLPI), bactericidal/permeability-increasing protein (BPI) and lactotransferrin (LTF) were assessed by real-time PCR in 15 IgG4-RD patients and 13 healthy individuals. Result: DNA microarray analysis identified 30 genes showing a greater than threefold change in expression in IgG4-RD patients following steroid therapy. Real-time RT-PCR showed that the levels of mRNAs encoding TCNI and SLPI, except for BPI and LTF, were significantly lower in patients with IgG4-RD than in healthy people. The levels of all four mRNAs in patients with IgG4-RD were significantly increased after steroid treatment. Conclusion: These results indicate that reduction in expression of innate immunity-related genes may participate in the pathogenesis of IgG4-RD that steroid treatment may rectify impaired innate immunity as well as acquired immunity.

本文言語英語
ページ(範囲)551-557
ページ数7
ジャーナルModern Rheumatology
30
3
DOI
出版ステータス出版済み - 2020/05/03

ASJC Scopus 主題領域

  • 医学一般

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