Volume 64, Issue 7 e26388
BRIEF REPORT

Prolonged neutropenia due to antihuman neutrophil antigen 2 (CD177) antibody after bone marrow transplantation

Taizo Wada

Corresponding Author

Taizo Wada

Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan

Correspondence

Taizo Wada, Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa 920–8641, Japan.

Email: [email protected]

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Satoshi Miyamoto

Satoshi Miyamoto

Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan

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Hiroyuki Okamoto

Hiroyuki Okamoto

Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan

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Yusuke Matsuda

Yusuke Matsuda

Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan

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Tomoko Toma

Tomoko Toma

Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan

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Kohsuke Imai

Kohsuke Imai

Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan

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Masatoshi Takagi

Masatoshi Takagi

Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan

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Tomohiro Morio

Tomohiro Morio

Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan

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Akihiro Yachie

Akihiro Yachie

Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan

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First published: 01 December 2016
Citations: 8

Abstract

We describe a patient who presented with prolonged neutropenia due to anti-human neutrophil antigen (HNA)-2 (CD177) antibody after allogeneic bone marrow transplantation. A granulocyte immunofluorescence test showed bimodal expression of antineutrophil antibody that resulted from specific binding of anti-HNA-2 to CD177+ neutrophils from healthy donors. The patient did not respond to granulocyte colony stimulating factor, which is able to upregulate CD177 expression on neutrophils. The low percentage of CD177+ cells in the few remaining neutrophils supports the possibility of elimination of CD177-upregulated neutrophils. These findings might explain an inferior response to neutrophil growth factors in neutropenia secondary to anti-HNA-2 antibody.

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