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c-MYC and nodular malignant melanoma. A case report
K M Greulich1, J Utikal, R U Peter
1Department of Dermatology, University of Ulm, Ulm, Germany.
Cancer
|July 18, 2000
Summary
Nodular malignant melanoma, a deadly skin cancer, shows increased copy numbers of the c-MYC gene. This finding suggests c-MYC plays a key role in melanoma development and progression, potentially serving as a future diagnostic marker.
Area of Science:
- Oncology
- Genetics
- Dermatology
Background:
- Skin cancer incidence is rising, with malignant melanoma causing most deaths.
- Nodular malignant melanoma has a poor prognosis, and a predictive molecular marker is lacking.
Observation:
- Comparative genomic hybridization (CGH) identified genomic changes in a nodular malignant melanoma case.
- Fluorescence in situ hybridization (FISH) confirmed copy number gains of the c-MYC gene in tumor tissue.
Findings:
- The c-MYC gene, located on chromosome 8q24, showed increased copy numbers in the melanoma.
- Reverse transcription-polymerase chain reaction detected higher c-MYC gene transcript levels in the tumor compared to normal tissue.
Implications:
- The WAF1 gene on chromosome 6p may also be implicated in melanoma pathogenesis.
- The c-MYC gene's altered copy number and increased expression suggest its critical role in melanoma development and progression.