期刊
JOURNAL OF CELLULAR BIOCHEMISTRY
卷 118, 期 8, 页码 2314-2319出版社
WILEY
DOI: 10.1002/jcb.25886
关键词
MELANOMA; PDOX; NUDE MICE; ORTHOTOPIC; DRUG-RESPONSE; VEMURAFENIB; COBIMETINIB; Salmonella typhimurium A1-R; TUMOR REGRESSION; PRECISION MEDICINE; COMBINATION THERAPY
Previously, a BRAF-V600E-mutant melanoma obtained from the right chest wall of a patient was grown orthotopically in the right chest wall of nude mice to establish a patient-derived orthotopic xenograft (PDOX) model. Trametinib (TRA), an MEK inhibitor, caused tumor regression. In contrast, another MEK inhibitor, cobimetinib (COB) could slow but not arrest growth or cause regression of the melanoma PDOX. First-line therapy temozolomide (TEM) could slow but not arrest tumor growth or cause regression. In addition, vemurafenib (VEM) was not effective even though VEM is supposed to target the BRAF-V600E mutation. We also previously demonstrated that tumor-targeting with S. typhimurium A1-R combined with TEM was significantly more effective than either S. typhimurium A1-R alone or TEM alone on the melanoma PDOX with the BRAF-V600E mutation. The present study used this PDOX model of melanoma to test its sensitivity to VEM combined with S. typhimurium A1-R compared to VEM alone and VEM combined with COB. VEM combined with S. typhimurium A1-R was significantly more effective than VEM alone or VEM combined with COB (P=0.0216) which is currently first line therapy for advanced melanoma with a BRAF-V600E mutation. J. Cell. Biochem. 118: 2314-2319, 2017. (c) 2017 Wiley Periodicals, Inc.
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