サカモト　ユウマ   Yuma Sakamoto   坂本　祐真    所属   川崎医科大学  医学部 基礎医学　免疫学    職種   助教
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Improved clonality detection in Hodgkin lymphoma using a semi-nested modification of the BIOMED-2 PCR assay for IGH and IGK rearrangements: A paraffin-embedded tissue study.
掲載誌名	正式名：Pathology international 略　 称：Pathol Int ISSNコード：14401827/13205463
掲載区分	国外
巻・号・頁	68(5),pp.287-293
著者・共著者	Shusen Han, Ayako Masaki, Yuma Sakamoto, Hisashi Takino, Takayuki Murase, Shinsuke Iida, Hiroshi Inagaki
発行年月	2018/05
概要	The BIOMED-2 PCR protocols targeting IGH and IGK genes may be useful for detecting clonality in Hodgkin lymphoma (HL). The clonality detection rates, however, have not been very high with these methods using paraffin-embedded tumor sections. We previously described the usefulness of the semi-nested BIOMED-2 IGH assay in B-cell malignancies. In this study, we devised a novel semi-nested BIOMED-2 IGK assay. Employing 58 cases of classical HL, we carried out the standard BIOMED-2, BIOMED-2 followed by BIOMED-2 re-amplification, and BIOMED-2 followed by semi-nested BIOMED-2, all targeting IGH and IGK, using paraffin-embedded tissues. In both IGH and IGK assays, semi-nested assays yielded significantly higher clonality detection rates than the standard assays and re-amplification assays. Clonality was detected in 13/58 (22.4%) classical HL cases using the standard IGH/IGK assays while it was detected in 38/58 (65.5%) cases using semi-nested IGH/IGK assays. The detection rates were not associated with the HL subtypes, CD30-positive cell density, CD20-positive cell density, or Epstein-Barr virus (EBV) positivity. In conclusion, tumor clonality was detected in nearly two-thirds of classical HL cases using semi-nested BIOMED-2 IGH/IGK assays using paraffin tumor sections. These semi-nested assays may be useful when the standard IGH/IGK assays fail to detect clonality in histopathologically suspected HLs.
DOI	10.1111/pin.12660
PMID	29575591