نتایج جستجو برای: egfr genes
تعداد نتایج: 454104 فیلتر نتایج به سال:
Transmembrane receptors, such as the EGFR, are regulated by their turnover, which is dependent on the ubiquitin-proteasome system. We tested in two independent study cohorts whether SNPs in genes involved in EGFR turnover predict clinical outcome in cetuximab-treated metastatic colorectal cancer (mCRC) patients. The following SNPs involved in EGFR degradation were analyzed in a screening cohort...
PURPOSE The epidermal growth factor receptor (EGFR) is abnormally activated in cancer and two classes of anti-EGFR agents, monoclonal antibodies and low-molecular-weight tyrosine kinase inhibitors, have shown antitumor activity in patients. Because these two classes of antireceptor agents target the EGFR at different sites, we decided to explore whether the combined administration of gefitinib,...
BACKGROUND Deregulation of EGFR signaling is common in non-small cell lung cancers (NSCLC) and this finding led to the development of tyrosine kinase inhibitors (TKIs) that are highly effective in a subset of NSCLC. Mutations of EGFR (mEGFR) and copy number gains (CNGs) of EGFR (gEGFR) and HER2 (gHER2) have been reported to predict for TKI response. Mutations in KRAS (mKRAS) are associated with...
Multiple myeloma (MM) was characterized by frequent mutations in KRAS/NRAS/BRAF within the EGFR pathway that could induce resistance to EGFR inhibitors. We here report that EGFR inhibition solely exhibited moderate inhibition in KRAS/NRAS/BRAF wildtype (triple-WT) MM cells, whilst had no effect in myeloma cells with any of the mutated genes. The moderate inhibitory effect was conferred by induc...
BACKGROUND The purpose of this study was to examine the differential expression of EphB4, EphrinB2, and epidermal growth factor receptor (EGFR) genes in papillary thyroid carcinoma (PTC) and evaluate their association with lymph node metastasis. METHODS EphB4, EphrinB2, and EGFR expression in 21 matched tumors and surrounding normal thyroid tissues were evaluated by complementary DNA (cDNA) m...
Melanocytic nevus (MN) may on occasion be difficult to distinguish from malignant melanoma (MM) histopathologically. Fluorescent in situ hybridization (FISH) has been demonstrated of use for the diagnosis melanocytic neoplasms skin. In this study, effectiveness standart FISH test (4-way probe targeting RREB1, CCND1, MYB genes and centromere 6) additionally probes, targetting EGFR, TP53, MDM2 TP...
Background and objective: EGFR and HER-2 are two members of ERbB/HER family of Type I Transmembrane growth factor receptors. Cox2 is an enzyme responsible for the conversion of arachidonic acid to prostaglandins, which has a major role in angiogenesis and can modelate tumor growth. The aim of this study was to determine the level of expression of EGFR, HER-2 and Cox2 in colorectd cancer. Mater...
Pemetrexed and platinum (PP) combination chemotherapy is the current standard first-line therapy for treatment of malignant mesothelioma (MM). However, a useful predictive biomarker for PP therapy is yet to be found. Here, we performed targeted exome sequencing to profile somatic mutations and copy number variations in 12 MM patients treated with PP therapy. We identified 187 somatic mutations ...
This study aimed to identify the genes and pathways associated with smoking-related lung adenocarcinoma. Three lung adenocarcinoma associated datasets (GSE43458, GSE10072, and GSE50081), the subjects of which included smokers and nonsmokers, were downloaded to screen the differentially expressed feature genes between smokers and nonsmokers. Based on the identified feature genes, we constructed ...
We analyzed the G-actin-regulated transcriptome by gene expression analysis using previously characterized actin-binding drugs. We found many known MAL/MRTF-dependent target genes of serum response factor (SRF), as well as additional directly regulated genes. Surprisingly, several putative antiproliferative target genes were identified, including mig6/errfi-1, a negative regulator of the EGFR f...
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