Yuma Sakamoto
   Department   Kawasaki Medical School  Kawasaki Medical School, Department of Immunology and Molecular Genetics,
   Position   Instructor
Article types 原著
Language English
Peer review Peer reviewed
Title Achromobacter Infection Is Rare in Japanese Patients with Pulmonary B-cell Lymphoma.
Journal Formal name：Internal medicine (Tokyo, Japan)
Abbreviation：Intern Med
ISSN code：13497235/09182918
Domestic / ForeginForegin
Volume, Issue, Page 57(6),pp.789-794
Author and coauthor Satsuki Aoyama, Ayako Masaki, Yuma Sakamoto, Hisashi Takino, Takayuki Murase, Koichi Ohshima, Tadashi Yoshino, Seiichi Kato, Hiroshi Inagaki
Publication date 2018/03
Summary Objective Achromobacter xylosoxidans (A. xylosoxidans) has been recently reported to have an association with the development of pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma in patients from European countries. However, the prevalence rates for A. xylosoxidans may vary significantly from country to country. To assess this association, the prevalence of A. xylosoxidans was analyzed in Japanese patients with pulmonary B-cell lymphoma. Methods DNA samples were obtained from formalin-fixed, paraffin-embedded sections of pulmonary MALT lymphomas (n=52), diffuse large B-cell lymphomas (DLBCLs, n=18), and benign pulmonary lesions (n=19). All samples were histopathologically reviewed by experienced hematopathologists, and the clonality of all MALT lymphoma cases was confirmed by a polymerase chain reaction (PCR)-based IGH rearrangement clonality assay. They were also tested for the API2-MALT1 fusion transcript. The presence of bacterial DNA was assessed with a nested PCR, and DNA sequencing was performed to confirm the PCR specificity. Results A. xylosoxidans DNA was detected in 1/52 cases of pulmonary MALT lymphoma, 2/18 cases of DLBCL, and 0/19 cases of benign pulmonary lesions. The prevalence of A. xylosoxidans in pulmonary lymphoma was not significantly higher than in benign lesions. Conclusion The present study shows that A. xylosoxidans infection may not be associated with pulmonary B-cell lymphoma in a Japanese case series. Large-scale international studies are needed to clarify the role of A. xylosoxidans in pulmonary lymphoma.
DOI 10.2169/internalmedicine.9430-17
PMID 29151525