Volume 23, Issue 1 pp. 92-98
Original Article

Plasma Exchange Downregulates Activated Monocytes and Restores Regulatory T Cells in Kawasaki Disease

Keiichi Koizumi

Corresponding Author

Keiichi Koizumi

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

Address correspondence and reprint requests to Mr Keiichi Koizumi, Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan. Email: [email protected]Search for more papers by this author
Minako Hoshiai

Minako Hoshiai

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Takeshi Moriguchi

Takeshi Moriguchi

Department of Emergency and Critical Care Medicine, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Nobuyuki Katsumata

Nobuyuki Katsumata

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Takako Toda

Takako Toda

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Hiroaki Kise

Hiroaki Kise

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Yohei Hasebe

Yohei Hasebe

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Yosuke Kono

Yosuke Kono

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Yuto Sunaga

Yuto Sunaga

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Masashi Yoshizawa

Masashi Yoshizawa

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Atsushi Watanabe

Atsushi Watanabe

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Norikazu Harii

Norikazu Harii

Department of Emergency and Critical Care Medicine, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Junko Goto

Junko Goto

Department of Emergency and Critical Care Medicine, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Keiko Kagami

Keiko Kagami

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Masako Abe

Masako Abe

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Kenichi Matsuda

Kenichi Matsuda

Department of Emergency and Critical Care Medicine, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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Kanji Sugita

Kanji Sugita

Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan

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First published: 21 September 2018
Citations: 16

Abstract

In Kawasaki disease (KD), the effect of plasma exchange (PE) on immune cells has not been fully elucidated. Therefore, we examined the changes in the number of CD14+ CD16+ activated monocytes, regulatory T (Treg), and T-helper type 17 (Th17) cells in KD patients treated with PE. The percentage of total monocytes and subclasses of lymphocytes, including CD4+ and CD8+ T cells, and CD19+ B cells, showed no significant difference before and after PE. However, the percentage of CD14+ CD16+ monocytes in total leukocytes decreased significantly after PE (1.1% ± 1.5% vs. 2.1% ± 2.3%, P < 0.05). Furthermore, while the percentage of Th17 cells in CD4+ T cells did not change, the percentage of Treg cells in CD4+ T cells increased significantly after PE (11.1% ± 5.1% vs. 8.0% ± 4.4%, P < 0.05). Therefore, PE downregulates activated monocytes and upregulates Treg cells toward normal levels and thus attenuates inflammation in KD.

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