Diagnostic Utility of a Clonality Test for Lymphoproliferative Diseases in Koreans Using the BIOMED-2 PCR Assay
최유덕, 최찬, 남종희,
소속 상세정보
최유덕 ( Choi Yoo-Duk )
Chonnam National University Medical School Department of Pathology
최찬 ( Choi Chan )
Chonnam National University Medical School Department of Pathology
남종희 ( Nam Jong-Hee )
Chonnam National University Medical School Department of Pathology
KMID : 0357920130470050458
Abstract
Background: A clonality test for immunoglobulin (IG) and T cell receptor (TCR) is a useful adjunctive method for the diagnosis of lymphoproliferative diseases (LPDs). Recently, the BIOMED-2 multiplex polymerase chain reaction (PCR) assay has been established as a standard method for assessing the clonality of LPDs. We tested clonality in LPDs in Koreans using the BIOMED-2 multiplex PCR and compared the results with those obtained in European, Taiwanese, and Thai participants. We also evaluated the usefulness of the test as an ancillary method for diagnosing LPDs. Methods: Two hundred and nineteen specimens embedded in paraffin, including 78 B cell lymphomas, 80 T cell lymphomas and 61 cases of reactive lymphadenitis, were used for the clonality test. Results: Mature B cell malignancies showed 95.7% clonality for IG, 2.9% co-existing clonality, and 4.3% polyclonality. Mature T cell malignancies exhibited 83.8% clonality for TCR, 8.1% co-existing clonality, and 16.2% polyclonality. Reactive lymphadenitis showed 93.4% polyclonality for IG and TCR. The majority of our results were similar to those obtained in Europeans. However, the clonality for IGK of B cell malignancies and TCRG of T cell malignancies was lower in Koreans than Europeans. Conclusions: The BIOMED-2 multiplex PCR assay was a useful adjunctive method for diagnosing LPDs.
키워드
Lymphoma; B-cell; Lymphoma; T cell; Gene rearrangement; BIOMED-2 multiplex PCR assay
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