Acute eosinophilic pneumonia occurring in a dedicator of cytokinesis 8 (DOCK8) deficient patient

Ikuya Tsuge, Komei Ito, Tamae Oe, Naoyuki Kando, Yasuto Kondo, Yoichi Nakajima, Chisato Inuo, Hiroki Kurahashi, Atsuo Urisu

研究成果: Article

5 引用 (Scopus)

抄録

Dedicator of cytokinesis 8 (DOCK8) deficiency is an autosomal recessive type of combined immunodeficiency with elevated IgE. In this report, we describe a Japanese girl of non-consanguineous family suffering from acute eosinophilic pneumonia (AEP) as a presenting feature of DOCK8 deficiency. Although AEP was self-limiting, consecutively experienced recurrent respiratory infections, severe atopic dermatitis, and vulnerability to viral infections, prompted us to evaluate the possibility of DOCK8 deficiency. Immunological assessments demonstrated decreased IgM, increased IgE, T lymphocytepenia, especially in CD4 T cells, decreased PHA blastogenesis, and decreased CD27+CD19 + memory B cells. Western blotting revealed the absence of DOCK8 protein. Investigation of genomic DNA by multiplex ligation-dependent probe amplification (MLPA) revealed a heterozygous large deletion of 77 kb spanning from intron 5 to exon 22. DOCK8 cDNA sequencing revealed a nonsense mutation at position 740 (E740X). As far as we know, this is the first Japanese case of DOCK8 deficiency.

元の言語English
ジャーナルPediatric Pulmonology
49
発行部数3
DOI
出版物ステータスPublished - 01-03-2014

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Pulmonary Eosinophilia
Cytokinesis
Immunoglobulin E
Nonsense Codon
Multiplex Polymerase Chain Reaction
Virus Diseases
Atopic Dermatitis
Lymphocyte Activation
Respiratory Tract Infections
Introns
Immunoglobulin M
Exons
B-Lymphocytes
Complementary DNA
Western Blotting
T-Lymphocytes
DNA

All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health
  • Pulmonary and Respiratory Medicine

これを引用

Tsuge, Ikuya ; Ito, Komei ; Oe, Tamae ; Kando, Naoyuki ; Kondo, Yasuto ; Nakajima, Yoichi ; Inuo, Chisato ; Kurahashi, Hiroki ; Urisu, Atsuo. / Acute eosinophilic pneumonia occurring in a dedicator of cytokinesis 8 (DOCK8) deficient patient. :: Pediatric Pulmonology. 2014 ; 巻 49, 番号 3.
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Acute eosinophilic pneumonia occurring in a dedicator of cytokinesis 8 (DOCK8) deficient patient. / Tsuge, Ikuya; Ito, Komei; Oe, Tamae; Kando, Naoyuki; Kondo, Yasuto; Nakajima, Yoichi; Inuo, Chisato; Kurahashi, Hiroki; Urisu, Atsuo.

:: Pediatric Pulmonology, 巻 49, 番号 3, 01.03.2014.

研究成果: Article

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AU - Ito, Komei

AU - Oe, Tamae

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AU - Kondo, Yasuto

AU - Nakajima, Yoichi

AU - Inuo, Chisato

AU - Kurahashi, Hiroki

AU - Urisu, Atsuo

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N2 - Dedicator of cytokinesis 8 (DOCK8) deficiency is an autosomal recessive type of combined immunodeficiency with elevated IgE. In this report, we describe a Japanese girl of non-consanguineous family suffering from acute eosinophilic pneumonia (AEP) as a presenting feature of DOCK8 deficiency. Although AEP was self-limiting, consecutively experienced recurrent respiratory infections, severe atopic dermatitis, and vulnerability to viral infections, prompted us to evaluate the possibility of DOCK8 deficiency. Immunological assessments demonstrated decreased IgM, increased IgE, T lymphocytepenia, especially in CD4 T cells, decreased PHA blastogenesis, and decreased CD27+CD19 + memory B cells. Western blotting revealed the absence of DOCK8 protein. Investigation of genomic DNA by multiplex ligation-dependent probe amplification (MLPA) revealed a heterozygous large deletion of 77 kb spanning from intron 5 to exon 22. DOCK8 cDNA sequencing revealed a nonsense mutation at position 740 (E740X). As far as we know, this is the first Japanese case of DOCK8 deficiency.

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