4.7 Article

Ki67 expression levels are a better marker of reduced melanoma growth following MEK inhibitor treatment than phospho-ERK levels

Journal

BRITISH JOURNAL OF CANCER
Volume 96, Issue 3, Pages 445-449

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/sj.bjc.6603596

Keywords

melanoma; Ki67; biomarker; BRAF; MAP kinase; Akt

Categories

Funding

  1. NCI NIH HHS [R01 CA076674, R01 CA080999, CA 098101, CA 80999, CA 93372, P30 CA010815, R01 CA047159, CA 76674, P01 CA025874, CA 10815, P01 CA098101, P50 CA093372, CA 25874, CA 47159] Funding Source: Medline
  2. NIGMS NIH HHS [R01 GM071695, GM071695] Funding Source: Medline

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The loss of tumour phospho-extracellular responsive kinase (pERK) positivity is the major treatment biomarker for mitogen-activated protein kinase/extracellular responsive kinase (MEK) inhibitors. Here, we demonstrate that there is a poor correlation between pERK inhibition and the anti-proliferative effects of MEK inhibitors in melanoma cells. We suggest that Ki67 is a better biomarker for future clinical studies.

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