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DEK expression in melanocytic lesions.
Ferdinand Kappes1, Michael S Khodadoust, Limin Yu
1Division of Infectious Diseases, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI 48109-0602, USA.
Human Pathology
|February 15, 2011
Summary
DEK oncogene expression is low in benign nevi and melanoma in situ but significantly higher in invasive melanomas. Increased DEK expression correlates with melanoma depth and metastasis, suggesting its role in melanoma progression.
Area of Science:
- Oncology
- Dermatology
- Molecular Biology
Background:
- Malignant melanoma diagnosis is challenging, relying on histopathology.
- The DEK oncogene, a chromatin-bound factor, is implicated in melanoma development and progression.
- Understanding DEK's role is crucial for advancing melanoma diagnosis and treatment.
Purpose of the Study:
- To investigate DEK oncogene expression levels across various melanocytic lesions.
- To determine the correlation between DEK expression and melanoma progression, including depth and metastasis.
Main Methods:
- Immunohistochemistry was used to assess DEK expression.
- A total of 147 melanocytic lesions were analyzed, including nevi, melanoma in situ, primary invasive melanomas, and metastatic melanomas.
Main Results:
- DEK expression was low in benign nevi and melanoma in situ.
- Significantly higher DEK expression was observed in primary invasive melanomas compared to benign nevi (P < .0001).
- DEK expression increased with melanoma depth (Breslow >1 mm) and in metastatic lesions (P < .05).
Conclusions:
- DEK overexpression is a frequent event in invasive melanomas.
- Elevated DEK expression is associated with advanced melanoma features like deep invasion and metastasis.
- DEK plays a significant role in melanoma progression.
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