Sorafenib in Combination With Irinotecan in Metastatic Colorectal Cancer Patients With KRAS Mutated Tumors
Ontology highlight
ABSTRACT: The aim of this multicenter randomized phase II trial is to determine the efficacy of sorafenib and irinotecan combination versus irinotecan monotherapy or versus sorafenib monotherapy in metastatic colorectal cancer patients with KRAS mutated tumors after failure of all active drugs known to be effective.
DISEASE(S): Metastatic Colorectal Cancer,Metastatic Colorectal Cancer Patients With Kras Mutated Tumors,Colorectal Neoplasms
Project description:KRAS mutation is a common driver in solid tumors, and KRAS-mutated tumors are relatively resistant to radiotherapy. Therefore, we investigated the combined effect of radiation and KRAS-MEK inhibitors (AMG510 and trametinib) in KRAS-mutated tumors.
Project description:KRAS mutation is a common driver in solid tumors, and KRAS-mutated tumors are relatively resistant to radiotherapy. Therefore, we investigated the combined effect of radiation and KRAS-MEK inhibitors (AMG510 and trametinib) in KRAS-mutated tumors.
Project description:Reovirus propagates with high efficiency in KRAS mutated colorectal cancer (CRC). About 45-50% of CRC patients possess KRAS mutation. Oncolytic reovirus treatment in combination with chemotherapy was tested in patient samples possessing KRAS mutated metastatic CRC. This is the raw data from the peripheral mononuclear cell (PBMC) samples at 4 timepoints (pre treatment, 48 hours, day 8, and day 15).
Project description:The goal for this study was to determine the effects of ethanol on pancreas cells and examine how ethanol influences protein expression in non-transformed and mutant KRAS cells. We performed TMT-labeled proteomics of non-transformed (hTERT-HPNE E6/E7) and KRAS mutated (hTERT-HPNE E6/E7/K-RasG12D) human pancreas cell lines following 6 months of 100 mM ethanol treatment.
Project description:By silencing of RALA, a downstream member of the RAS signal transduction pathway, we aimed to determine whether genes downstream of a mutated KRAS (codon 12 or 13) or a mutated BRAF can have significant functions in colorectal cancer carcinogenesis.
Project description:Skin toxicity treatment in patients with advanced or metastatic colorectal cancer (mCRC) and non-mutated (wild-type) KRAS treated with panitumumab monotherapy after failure of fluoropyrimidine-, oxaliplatin-, and irinotecan-containing chemotherapy regimens.
Project description:By silencing of RALA, a downstream member of the RAS signal transduction pathway, we aimed to determine whether genes downstream of a mutated KRAS (codon 12 or 13) or a mutated BRAF can have significant functions in colorectal cancer carcinogenesis. RALA was silenced in three colorectal cancer cell lines (SW480, HCT116 and HT29). Effects were normalized to mock-transfected cells and the effects of scramble siRNA were excluded. SW480, HCT116 and HT29 cell lines were treated with the PI3K inhibitor LY294002 or DMSO.
Project description:Constitutively activating internal tandem duplication (ITD) alterations of the receptor tyrosine kinase FLT3 (Fms-like tyrosine kinase 3) are common in acute myeloid leukemia (AML) and classifies FLT3 as an attractive therapeutic target. So far, application of FLT3 small molecule inhibitors such as Sorafenib has resulted only in partial and transient clinical responses in FLT3-ITD+ patients. Only recently, a prolonged event-free survival has been observed in AML patients who were treated with Sorafenib in addition to standard therapy. Here, we studied the Sorafenib effect on proliferation in a panel of 13 FLT3-ITD- and FLT3-ITD+ AML cell lines. Sorafenib IC50 values ranged from 0.001 to 5.6 µM, whereas FLT3-ITD+ cells (MOLM-13, MV4;11) were found more sensitive to Sorafenib than FLT3-ITD- cells. However, we identified two FLT3-ITD- cell lines (MONO-MAC-1 and OCI-AML-2) which were also Sorafenib sensitive. Phosphoproteome analyses revealed that the affected pathways differed in Sorafenib sensitive FLT3-ITD- and FLT3-ITD+ cells. In MV4;11 cells Sorafenib suppressed mTOR signalling by inhibiting direct inhibition of FLT3. In MONO-MAC-1 cells Sorafenib inhibited the MEK/ERK pathway by inhibition of the RET tyrosine kinase. These data suggest that the FLT3 status in AML patients might not be the only predictive factor for a response to Sorafenib.