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Atypical lipomatous tumor: molecular characterization
Gianluigi Arrigoni1, Claudio Doglioni
1Department of Pathology, San Raffaele Hospital, Via Olgettina 60, Milan, Italy.
Current Opinion in Oncology
|June 10, 2004
Summary
Atypical lipomatous tumors/well-differentiated liposarcomas (ALT/WDLs) exhibit unique genetic changes, including extra copies of oncogenes like MDM2 and CDK4. These findings highlight potential new therapeutic targets for these common mesenchymal neoplasms.
Area of Science:
- Oncology
- Genetics
- Molecular Biology
Background:
- Atypical lipomatous tumors/well-differentiated liposarcomas (ALT/WDLs) are common mesenchymal neoplasms.
- These tumors are characterized by specific chromosomal abnormalities, including supernumerary or giant marker chromosomes.
Purpose of the Study:
- To review recent findings on the genetic alterations in ALT/WDLs.
- To identify potential oncogenes and therapeutic targets in these tumors.
Main Methods:
- Review of recent scientific literature on ALT/WDL genetics.
- Analysis of genetic aberrations and oncogene amplification in tumor samples.
Main Results:
- ALT/WDLs frequently harbor extra copies of oncogenes such as MDM2, CDK4, SAS, and HMGA2.
- Recent research has identified novel oncogenes through further dissection of genetic alterations.
Conclusions:
- ALT/WDLs serve as a valuable model for studying oncogene roles in pathogenesis.
- Identified oncogenes represent promising therapeutic targets for ALT/WDLs.