نتایج جستجو برای: egfr genes
تعداد نتایج: 454104 فیلتر نتایج به سال:
گیرنده فاکتور رشد اپیدرمال (egfr) یک پروتئین 170 کیلو دالتونی است که با اتصال به لیگاندهای فاکتور رشد اپیدرمی (egf) و فاکتور رشد تمایز دهندهtgf?) ) باعث القا تکثیر سلولی می شود. فعالسازی مسیر پیامدهی egfr در سلول های سرطانی منجر به تکثیر سلولی، آنژیوژنز، متاستاز و کاهش آپوپتوز می شود. جهت درمان سرطان نیاز به عوامل ضد سرطان جدیدی است که بتواند میان سلول های بدخیم و سلول های نرمال تمایز قائل شود....
Osteosarcoma (OS) is an invasive malignant neoplasm of the bones. The present study identified and analyzed key genes associated with OS. Expression profiling of the dataset GSE49003, which included 6 metastatic and 6 non-metastatic OS cell lines and was obtained from the Gene Expression Omnibus, was performed. Following data preprocessing, the differentially expressed genes (DEGs) were selecte...
Abnormalities of epidermal growth factor receptor (EGFR) in non-small-cell lung cancer (NSCLC) patients consist of EGFR overexpression and EGFR (HER1) gene mutations. Structural dysfunction of the tyrosine kinase domain of EGFR is associated with the clinical response to tyrosine kinase inhibitors (TKI) in patients with NSCLC. The most common EGFR gene mutations occur as either deletions in exo...
Tyrosine kinase inhibitors (TKIs) are very efficacious in non-small-cell lung cancer (NSCLC) patients harboring activating Epidermal Growth Factor Receptor (EGFR) mutations. However, about 10% of EGFR wild type (wt) patients respond to TKI, with unknown molecular mechanisms of sensitivity. We considered a case series of 34 EGFR wt NSCLC patients responsive to erlotinib after at least one line o...
The Drosophila EGF receptor is required for differentiation of many cell types during eye development. We have used mosaic analysis with definitive null mutations to analyze the effects of complete absence of EGFR, Ras or Raf proteins during eye development. The Egfr, ras and raf genes are each found to be essential for recruitment of R1-R7 cells. In addition Egfr is autonomously required for M...
Background:Oral squamous cell carcinoma (OSCC) is the most common malignancy of the oral cavity. Despite some improvements in treatment, the survival rate is still very low, mainly due to the possible development of secondary malignancy or metastasis. Clinical and pathological features as well as molecular biomarkers might predict the recurrence. In recent years, many studies ...
Inhibition of Hedgehog (HH)/GLI signalling in cancer is a promising therapeutic approach. Interactions between HH/GLI and other oncogenic pathways affect the strength and tumourigenicity of HH/GLI. Cooperation of HH/GLI with epidermal growth factor receptor (EGFR) signalling promotes transformation and cancer cell proliferation in vitro. However, the in vivo relevance of HH-EGFR signal integrat...
Epidermal growth factor receptor (EGFR) mutations and anaplastic lymphoma kinase (ALK) fusion genes represent novel oncogenes that are associated with non-small-cell lung cancers (NSCLC). The feasibility of detecting EGFR mutations and ALK fusion genes in small biopsy specimens or surgical specimens was determined. Of the 721 NSCLC patients, a total of 305 cases were positive for EGFR mutations...
Activation of the PI3K and epidermal growth factor receptor (EGFR) pathway is able to drive oncogenesis in multiple human cancers, including head and neck squamous cell carcinoma. Targeted agents such as cetuximab and erlotinib are currently used in patients with head and neck squamous cell carcinoma, but, in this disease, the genomic alterations that cause pathway activation and determine resp...
background and aims. many oral squamous cell carcinomas develop from potentially malignant disorders (pmds) which include a variety of lesions and conditions characterized by an increased risk for malignant transformation. this study evaluated the quantitative expression of egfr in normal oral mucosa, oral leukoplakia and oral submucous fibrosis to predict the malignant risk in compliance with ...
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