Genetic landscape and deregulated pathways in B-cell lymphoid malignancies
R Rosenquist1,2, S Beà3, M-Q Du4
1Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.
Journal of Internal Medicine
|June 21, 2017
Summary
Next-generation sequencing reveals key genetic events in B-cell lymphoid malignancies, guiding targeted therapies like BTK and BCL2 inhibitors. Understanding these alterations is crucial for developing precision medicine approaches.
Area of Science:
- Hematology
- Oncology
- Genetics
Background:
- B-cell lymphoid malignancies are complex diseases with diverse genetic underpinnings.
- Recent advances in next-generation sequencing have significantly improved our understanding of their genetic landscape.
- Targeted therapies are being developed to inhibit key pathobiological mechanisms.
Purpose of the Study:
- To review the current genetic landscape of specific B-cell lymphoid malignancies.
- To detail recurrent genetic alterations and deregulated signaling pathways.
- To discuss the prognostic and predictive impact of these genetic lesions.
Main Methods:
- Review of current literature on genetic alterations in B-cell lymphoid malignancies.
- Analysis of recurrent genetic events and affected signaling pathways.
- Discussion of targeted therapy development and precision medicine strategies.
Main Results:
- Identified key genetic alterations in follicular lymphoma, diffuse large B-cell lymphoma, mantle cell lymphoma, chronic lymphocytic leukemia, and marginal zone lymphoma.
- Detailed involvement of signaling pathways including B-cell receptor/NF-κB, NOTCH, JAK-STAT, p53/DNA damage response, apoptosis, and cell cycle regulation.
- Highlighted the role of genetic lesions in disease ontogeny, evolution, clinicobiological features, and prognostic impact.
Conclusions:
- Genetic landscape of B-cell malignancies is complex, with distinct alterations driving specific subtypes.
- Targeted therapies show promise but resistance mechanisms require further investigation.
- Future research should focus on understanding therapy resistance and identifying novel targets for precision medicine.
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