Association of Cytogenetics Aberrations and IGHV Mutations with Outcome in Chronic Lymphocytic Leukemia Patients in a Real-World Clinical Setting
Immunoglobulin heavy chain variable ( ) region mutations, mutation, fluorescence in situ hybridization (FISH), and cytogenetic analysis are the most important prognostic biomarkers used in chronic lymphocytic leukemia (CLL) patients in our daily practice. In real-life environment, there are scarce s...
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Published in | Global medical genetics Vol. 11; no. 1; pp. 59 - 68 |
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Main Authors | , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Germany
Georg Thieme Verlag KG
01.01.2024
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Subjects | |
Online Access | Get full text |
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Summary: | Immunoglobulin heavy chain variable (
) region mutations,
mutation, fluorescence in situ hybridization (FISH), and cytogenetic analysis are the most important prognostic biomarkers used in chronic lymphocytic leukemia (CLL) patients in our daily practice. In real-life environment, there are scarce studies that analyze the correlation of these factors with outcome, mainly referred to time to first treatment (TTFT) and overall survival (OS). This study aimed to typify
mutation status, family usage, FISH aberrations, and complex karyotype (CK) and to analyze the prognostic impact in TTFT and OS in retrospective study of 375 CLL patients from a Spanish cohort. We found unmutated CLL (U-CLL) was associated with more aggressive disease, shorter TTFT (48 vs. 133 months,
< 0.0001), and shorter OS (112 vs. 246 months,
< 0.0001) than the mutated CLL.
was the most frequently used
family (46%), followed by
(30%) and
(16%).
and
subfamilies were associated with poor prognosis, while
and
showed the best outcomes. The prevalence of CK was 15% and was significantly associated with U-CLL. In the multivariable analysis,
gene usage and del13q were associated with longer TTFT, while VH1-02, +12, del11q, del17p, and U-CLL with shorter TTFT. Moreover, VH1-69 usage, del11q, del17p, and U-CLL were significantly associated with shorter OS. A comprehensive analysis of genetic prognostic factors provides a more precise information on the outcome of CLL patients. In addition to FISH cytogenetic aberrations,
and
mutations,
gene families, and CK information could help clinicians in the decision-making process. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2699-9404 2699-9404 |
DOI: | 10.1055/s-0044-1779668 |