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Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
[Tumor-type specific translocations methods and indications for routine molecular pathology]
S Gattenlöhner1, H K Müller-Hermelink
1Institut für Pathologie, Universitätsklinikum Würzburg.
Verhandlungen Der Deutschen Gesellschaft Fur Pathologie
|March 5, 2008
Summary
Chromosomal translocations and gene fusions are increasingly recognized as key drivers in hematological cancers and sarcomas. New techniques are revealing these rearrangements in carcinomas, suggesting shared cancer development mechanisms.
Area of Science:
- Oncology
- Genetics
- Molecular Biology
Context:
- Chromosomal abnormalities, specifically translocations and gene fusions, have long been implicated in cancer development since Boveri's hypothesis in 1914.
- Over 350 gene fusions involving 337 genes are currently identified, playing significant roles as diagnostic and prognostic markers in hematological malignancies and sarcomas.
- Historically, gene rearrangements were rarely documented in common carcinomas, limiting the understanding of their role in epithelial cancers.
Purpose:
- To highlight the growing recognition of gene fusions in carcinomas.
- To emphasize the impact of advanced detection techniques on identifying cryptic chromosomal rearrangements.
- To explore the potential shared pathogenetic mechanisms between epithelial carcinogenesis and hematological/soft-tissue malignancies.
Summary:
- Gene fusions resulting from chromosomal translocations are established oncogenic drivers in hematological diseases and sarcomas.
- Recent advancements in cytogenetic analysis enable the detection of previously cryptic rearrangements in carcinomas.
- The identification of fusion oncogenes in carcinomas suggests common molecular pathways in epithelial cancer development, similar to other cancer types.
Impact:
- Advances in detecting gene fusions will likely increase their recognized prevalence in carcinomas.
- Understanding these rearrangements in carcinomas can lead to novel diagnostic and prognostic tools.
- This research indicates conserved pathogenetic mechanisms across diverse cancer types, potentially unifying treatment strategies.
