INT11159
From wiki-pain
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Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
The first feature common to both malignancies is that EGFR expression is quite common in malignant mesothelioma[10-12]. | |||||||||||||||
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Interestingly in this erlotinib trial, the high EGFR expressing tumor group experienced a 2-fold longer survival, but study did not interrogate tumors for EGFR mutations. | |||||||||||||||
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We have examined an archival series of cases of pancreatic pathology for expression of the EGFR using the anti-EGFR antiserum 12E and found that there is almost ubiquitous overexpression of EGFR in pancreatic cancer and in chronic pancreatitis. | |||||||||||||||
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We have examined an archival series of cases of pancreatic pathology for expression of the EGFR using the anti-EGFR antiserum 12E and found that there is almost ubiquitous overexpression of EGFR in pancreatic cancer and in chronic pancreatitis. | |||||||||||||||
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EGFR protein expression, as evaluated by immunohistochemistry, does not correlate with response [2,4,11] and only specific treatment-induced skin rash seems associated with tumor response and progression-free survival [2]. | |||||||||||||||
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Six of thirty-five (2%) partial responses were reported in patients with low expression of EGFR (<1%) and 4/51 (8%) in patients with negative levels of EGFR, and stable disease occurred in 11/35 (31%) versus 15/51 (29%), with a disease control rate of 37% versus 39%. | |||||||||||||||
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To date in all trials with panitumumab EGFR immunohistochemistry expression was assessed. | |||||||||||||||
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A large, phase III, multicenter, pivotal trial (study 408) has randomized patients with oxaliplatin and irinotecan-refractory EGFR-expressing metastatic colorectal cancer between best supportive care (BSC) and BSC plus panitumumab at a dose of 6 mg/m2 every 2 weeks (Van Cutsem et al. 2007). | |||||||||||||||
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More information about the role of EGFR inhibition as a first-line option in colorectal cancer should come from the Crystal study, a large multicenter study in which 1212 patients with previously untreated metastatic colorectal cancer expressing EGFR have been randomized to receive FOLFIRI with or without cetuximab; preliminary data are expected in 2007. | |||||||||||||||
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Six of thirty-five (2%) partial responses were reported in patients with low expression of EGFR (<1%) and 4/51 (8%) in patients with negative levels of EGFR, and stable disease occurred in 11/35 (31%) versus 15/51 (29%), with a disease control rate of 37% versus 39%. | |||||||||||||||
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Overexpression of the human epidermal growth factor receptor (HER) family of oncoproteins, HER1/epidermal growth factor receptor (EGFR) and HER2, has been described in approximately 70% of salivary gland carcinomas including MEC and adenoid cystic carcinoma [4] but few studies have evaluated the therapeutic relevance of an anti-EGFR/HER2 strategy in these neoplasms. | |||||||||||||||
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Immunohistochemical studies demonstrated different degrees of EGFR expression in several salivary gland carcinomas, including MECs and adenoid cystic carcinomas (ACCs). | |||||||||||||||
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Overexpression of the human epidermal growth factor receptor (HER) family of oncoproteins, HER1/epidermal growth factor receptor (EGFR) and HER2, has been described in approximately 70% of salivary gland carcinomas including MEC and adenoid cystic carcinoma [4] but few studies have evaluated the therapeutic relevance of an anti-EGFR/HER2 strategy in these neoplasms. | |||||||||||||||
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EGFR overexpression is related to a poorer prognosis and a more aggressive behaviour of the disease but its overall prognostic value has not been completely established [3,6]. | |||||||||||||||
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Overexpression of the human epidermal growth factor receptor (HER) family of oncoproteins, HER1/epidermal growth factor receptor (EGFR) and HER2, has been described in approximately 70% of salivary gland carcinomas including MEC and adenoid cystic carcinoma [4] but few studies have evaluated the therapeutic relevance of an anti-EGFR/HER2 strategy in these neoplasms. | |||||||||||||||
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High levels of EGFR expression was associated with balanced polysomy (similar high level gains in EGFR gene and chr 7) and EGFR gene amplification (unbalanced gain of EGFR gene). | |||||||||||||||
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In the BR.21 study, EGFR expression in the erlotinib treated group was associated with a better response without a survival advantage (Tsao et al 2005). | |||||||||||||||
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EGFR is expressed on the keratinocytes, sebaceous gland cells, and the outer sheath of hair follicles (Lee et al 2004). | |||||||||||||||
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This could be related to the presence of EGFR mutations, lack of KRAS mutations, or overexpression of EGFR as measured by fluorescent in-situ hybridization (FISH) analysis. | |||||||||||||||
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Well differentiated tumors had a higher level of EGFR expression compared to poorly differentiated tumors. | |||||||||||||||
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