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J Carcinog. 2008 Jul 16;7:1. doi: 10.1186/1477-3163-7-1.

BRAFV600E mutations in malignant melanoma are associated with increased expressions of BAALC.

Author information

1
Department of Dermatology, Julius-Maximilians University, Würzburg, Germany. schrama_d@klinik.uni-wuerzburg.de.

Abstract

BACHGROUND: Activating BRAF mutations are present in approximately 50% of melanomas. Although different downstream target genes of the most common mutant V600E have been identified, the contribution of activating BRAF mutations to malignant transformation needs further clarification.

METHODS:

Microarray gene analysis was performed for human melanoma cell lines harboring BRAFV600E mutations in comparison to cell lines without this mutation.

RESULTS:

This analysis revealed a more than two fold down-regulation of 43 and an increase of 39 gene products. BAALC (Brain and acute Leukaemia, cytoplasmatic) was most prominently regulated, since it was up-regulated in mutated cell lines by a mean of 11.45. Real time PCR analyses with RNA from melanoma cell lines (n = 30) confirmed the BRAF-activation dependent up-regulation of BAALC.

CONCLUSION:

BAALC, which has been associated with cell dedifferentiation and migration, may function as a downstream effector of activating BRAF mutations during melanomagenesis.

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