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HPLC-based Assay to Monitor Extracellular Nucleotide/Nucleoside Metabolism in Human Chronic Lymphocytic Leukemia Cells
Published on: July 20, 2016
Chronic lymphocytic leukaemia with binucleated lymphocytes
I Amouroux1, H Mossafa, O Gentilhomme
1Laboratoire d'Hématologie Biologique, Hôpital Antoine BéclèneClamart, Lyon, France.
Insights
This study identifies binucleated lymphocytes in four chronic lymphocytic leukemia (CLL) patients, suggesting a potential new CLL subtype. Trisomy 12 was observed in some cases, linking it to atypical CLL morphology.
Area of Science:
- Hematology
- Oncology
- Cell Biology
Background:
- Chronic lymphocytic leukemia (CLL) is a mature B-cell malignancy.
- CLL exhibits distinct morphologic subtypes based on cellular features.
- Binucleated lymphocytes are not a recognized feature in typical CLL.
Purpose of the Study:
- To investigate the presence and characteristics of binucleated lymphocytes in CLL patients.
- To determine the immunological and cytogenetic profile of CLL cases with binucleated lymphocytes.
- To explore the potential for a novel CLL entity characterized by binucleated cells.
Main Methods:
- Immunological profiling of patient samples.
- Cytogenetic analysis (including detection of trisomy 12).
- Morphological assessment of lymphocytes.
Main Results:
- Four patients diagnosed with CLL exhibited a significant presence of binucleated lymphocytes.
- Two of these four patients showed trisomy 12, a known marker for atypical CLL morphology.
- Immunological and cytogenetic data were analyzed for these unique cases.
Conclusions:
- The presence of binucleated lymphocytes may represent a previously undescribed morphologic variant of CLL.
- Trisomy 12 is associated with this atypical CLL presentation.
- Further research is warranted to classify this finding as a distinct CLL entity.
Abstract:
Chronic lymphocytic leukaemia (CLL) is a monoclonal proliferation usually involving B cells and composed of mature lymphoid cells. Distinct morphologic subtypes have been recognized according to lymphocyte size, nuclear:cytoplastic ratio and nucleolus. However the presence of characteristically binucleated lymphocytes in patients fulfilling criteria for CLL diagnosis has never been described. We here report immunological and cytogenetic studies of four patients with CLL but with binucleated lymphocytes. Moreover, trisomy 12, known to be associated with atypical morphology in CLL, was detected in two of these four patients. We suggest that this be considered as a possible new entity.
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