作者: Anna Margrét Halldórsdóttir , Barbara A. Zehnbauer , W. Richard Burack
DOI: 10.1080/10428190701377022
关键词: Follicular lymphoma 、 Lymphoma 、 Immunoglobulin Gene Rearrangement 、 Pathology 、 Molecular biology 、 Molecular genetics 、 Gene rearrangement 、 DNA extraction 、 Polymerase chain reaction 、 Biology 、 Chronic lymphocytic leukemia 、 Cancer research 、 Oncology 、 Hematology
摘要: The BIOMED-2 PCR-based immunoglobulin gene rearrangement assays have quickly become the most commonly used laboratory method for detection of B-cell clonality. Therefore, reliability these under various conditions has increasingly important. When studying paired cases follicular lymphoma (FL) from individual patients, we to assess clonality in 40 formalin-fixed paraffin-embedded (FFPE) specimens 19 patients diagnosed with FL. IGH failed give a clonal result 26/40 (65%) specimens, while IGK only 3/40 (8%) specimens. high failure rate this set FFPE lymphomas cannot be explained by systematic problems DNA extraction or amplification because same resulted low (3/32, 9%) small lymphocytic lymphoma/chronic leukemia and fresh frozen FL (1/6, 17%). Furthermore, second validation 13 was 9/13 (69%). assay did not perform well on may superior assessing when no fresh/frozen tissue is available.