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|Ref Type||Journal Article|
|Authors||Paraiso KH, Fedorenko IV, Cantini LP, Munko AC, Hall M, Sondak VK, Messina JL, Flaherty KT, Smalley KS|
|Title||Recovery of phospho-ERK activity allows melanoma cells to escape from BRAF inhibitor therapy.|
|Journal||British journal of cancer|
|Date||2010 Jun 08|
|Abstract Text||Resistance to BRAF inhibitors is an emerging problem in the melanoma field. Strategies to prevent and overcome resistance are urgently required.The dynamics of cell signalling, BrdU incorporation and cell-cycle entry after BRAF inhibition was measured using flow cytometry and western blot. The ability of combined BRAF/MEK inhibition to prevent the emergence of resistance was demonstrated by apoptosis and colony formation assays and in 3D organotypic cell culture.BRAF inhibition led to a rapid recovery of phospho-ERK (pERK) signalling. Although most of the cells remained growth arrested in the presence of drug, a minor population of cells retained their proliferative potential and escaped from BRAF inhibitor therapy. A function for the rebound pERK signalling in therapy escape was demonstrated by the ability of combined BRAF/MEK inhibition to enhance the levels of apoptosis and abrogate the onset of resistance.Combined BRAF/MEK inhibition may be one strategy to prevent the emergence of drug resistance in BRAF-V600E-mutated melanomas.|
|Molecular Profile||Treatment Approach|
|Gene Name||Source||Synonyms||Protein Domains||Gene Description||Gene Role|
|Therapy Name||Drugs||Efficacy Evidence||Clinical Trials|
|Drug Name||Trade Name||Synonyms||Drug Classes||Drug Description|
|Gene||Variant||Impact||Protein Effect||Variant Description||Associated with drug Resistance|
|Molecular Profile||Indication/Tumor Type||Response Type||Therapy Name||Approval Status||Evidence Type||Efficacy Evidence||References|
|BRAF V600E||melanoma||sensitive||BI-69A11||Preclinical||Actionable||In a preclinical study, BI-69A11 inhibited proliferation and Akt/mTOR signaling in human melanoma cell lines harboring BRAF V600E in culture (PMID: 26603897, PMID: 20531415).||20531415 26603897|
|BRAF V600E||melanoma||sensitive||SBI-0640756||Preclinical||Actionable||In a preclinical study, SBI-0640756 inhibited proliferation and Akt/mTOR signaling in human melanoma cell lines harboring BRAF V600E in culture (PMID: 26603897, PMID: 20531415).||20531415 26603897|
|BRAF V600E||melanoma||sensitive||SBI-0640726||Preclinical||Actionable||In a preclinical study, SBI-0640726 inhibited proliferation and Akt/mTOR signaling in human melanoma cell lines harboring BRAF V600E in culture (PMID: 26603897, PMID: 20531415).||20531415 26603897|