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Expression of oncogenes, tumour suppressor, mismatch repair and apoptosis-related genes in primary and metastatic melanoma cells.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Dermatology.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Dermatology. Östergötlands Läns Landsting, Centre for Medicine, Department of Dermatology and Venerology in Östergötland.
2001 (English)In: International Journal of Oncology, ISSN 1019-6439, Vol. 19, no 6, 1149-1153 p.Article in journal (Refereed) Published
Abstract [en]

Several genetic alterations have been implicated in the development of malignant melanoma, but the expression of oncogenes, tumour suppressor, mismatch repair and apoptosis-related genes and their interactions in melanoma have not been completely clarified. We simultaneously examined the expression of p73, c-erbB-2, ras, p53, Mdm2, p27, DCC, hMLH-1, hMSH-2, bcl-2, Bax and NF-kappaB, by immunocytochemistry, in both primary and metastatic melanoma cell lines derived from melanoma patients. p73 was expressed in 7/8 cell lines, but stronger expressed in the metastatic cells than in the primary melanoma cells. c-erbB-2 was detected in all 8 cell lines and ras in 2/5 metastases. p53 was found in all the cell lines and Mdm2 in 1/8 of the cell lines. In the same patient, the intensity of p27 expression was decreased from the primary to the metastatic tumours. bcl-2 was expressed in all the cell lines. Bax was absent in 5/8 cell lines. In the same patient, Bax was weakly expressed in the primary tumour but lacking in the metastases. The data demonstrate that overexpression of p73, c-erbB-2, p53 and bcl-2, and loss of Mdm2 and Bax may interact and play important roles in the development and aggressiveness of human melanoma.

Place, publisher, year, edition, pages
2001. Vol. 19, no 6, 1149-1153 p.
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-25323Local ID: 9765OAI: oai:DiVA.org:liu-25323DiVA: diva2:245651
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2011-01-13

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Zhang, HongRosdahl, Inger

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Faculty of Health SciencesDermatologyDepartment of Dermatology and Venerology in Östergötland
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