Gene expression pattern of the epidermal growth factor receptor family and LRIG1 in renal cell carcinoma
<p>Abstract</p> <p>Background</p> <p>Previous studies have revealed altered expression of epidermal growth factor receptor (EGFR)-family members and their endogenous inhibitor leucine-rich and immunoglobulin-like domains 1 (LRIG1) in renal cell carcinoma (RCC). In this...
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doaj-6d0381fe1e9042f2aadfa6e273a3451e2020-11-25T01:50:53ZengBMCBMC Research Notes1756-05002012-05-015121610.1186/1756-0500-5-216Gene expression pattern of the epidermal growth factor receptor family and LRIG1 in renal cell carcinomaThomasson MarcusHedman HåkanLjungberg BörjeHenriksson Roger<p>Abstract</p> <p>Background</p> <p>Previous studies have revealed altered expression of epidermal growth factor receptor (EGFR)-family members and their endogenous inhibitor leucine-rich and immunoglobulin-like domains 1 (LRIG1) in renal cell carcinoma (RCC). In this study, we analyzed the gene expression levels of EGFR-family members and LRIG1, and their possible associations with clinical parameters in various types of RCC.</p> <p>Methods</p> <p>Gene expression levels of EGFR–family members and LRIG1 were analyzed in 104 RCC samples, including 81 clear cell RCC (ccRCC), 15 papillary RCC (pRCC), and 7 chromophobe RCC (chRCC) by quantitative real-time RT-PCR. Associations between gene expression levels and clinical data, including tumor grade, stage, and patient survival were statistically assessed.</p> <p>Results</p> <p>Compared to kidney cortex, <it>EGFR</it> was up-regulated in ccRCC and pRCC, <it>LRIG1</it> and <it>ERBB2</it> were down-regulated in ccRCC, and <it>ERBB4</it> was strongly down-regulated in all RCC types. <it>ERBB3</it> expression did not differ between RCC types or between RCC and the kidney cortex. The expression of the analyzed genes did not correlate with patient outcome.</p> <p>Conclusions</p> <p>This study revealed that the previously described up-regulation of <it>EGFR</it> and down-regulation of <it>ERBB4</it> occurred in all analyzed RCC types, whereas down-regulation of <it>ERBB2</it> and <it>LRIG1</it> was only present in ccRCC. These observations illustrate the need to evaluate the different RCC types individually when analyzing molecules of interest and potential biological markers.</p> http://www.biomedcentral.com/1756-0500/5/216Renal cell carcinomaEGFRERBB2ERBB3ERRB4LRIG1Survival |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Thomasson Marcus Hedman Håkan Ljungberg Börje Henriksson Roger |
spellingShingle |
Thomasson Marcus Hedman Håkan Ljungberg Börje Henriksson Roger Gene expression pattern of the epidermal growth factor receptor family and LRIG1 in renal cell carcinoma BMC Research Notes Renal cell carcinoma EGFR ERBB2 ERBB3 ERRB4 LRIG1 Survival |
author_facet |
Thomasson Marcus Hedman Håkan Ljungberg Börje Henriksson Roger |
author_sort |
Thomasson Marcus |
title |
Gene expression pattern of the epidermal growth factor receptor family and LRIG1 in renal cell carcinoma |
title_short |
Gene expression pattern of the epidermal growth factor receptor family and LRIG1 in renal cell carcinoma |
title_full |
Gene expression pattern of the epidermal growth factor receptor family and LRIG1 in renal cell carcinoma |
title_fullStr |
Gene expression pattern of the epidermal growth factor receptor family and LRIG1 in renal cell carcinoma |
title_full_unstemmed |
Gene expression pattern of the epidermal growth factor receptor family and LRIG1 in renal cell carcinoma |
title_sort |
gene expression pattern of the epidermal growth factor receptor family and lrig1 in renal cell carcinoma |
publisher |
BMC |
series |
BMC Research Notes |
issn |
1756-0500 |
publishDate |
2012-05-01 |
description |
<p>Abstract</p> <p>Background</p> <p>Previous studies have revealed altered expression of epidermal growth factor receptor (EGFR)-family members and their endogenous inhibitor leucine-rich and immunoglobulin-like domains 1 (LRIG1) in renal cell carcinoma (RCC). In this study, we analyzed the gene expression levels of EGFR-family members and LRIG1, and their possible associations with clinical parameters in various types of RCC.</p> <p>Methods</p> <p>Gene expression levels of EGFR–family members and LRIG1 were analyzed in 104 RCC samples, including 81 clear cell RCC (ccRCC), 15 papillary RCC (pRCC), and 7 chromophobe RCC (chRCC) by quantitative real-time RT-PCR. Associations between gene expression levels and clinical data, including tumor grade, stage, and patient survival were statistically assessed.</p> <p>Results</p> <p>Compared to kidney cortex, <it>EGFR</it> was up-regulated in ccRCC and pRCC, <it>LRIG1</it> and <it>ERBB2</it> were down-regulated in ccRCC, and <it>ERBB4</it> was strongly down-regulated in all RCC types. <it>ERBB3</it> expression did not differ between RCC types or between RCC and the kidney cortex. The expression of the analyzed genes did not correlate with patient outcome.</p> <p>Conclusions</p> <p>This study revealed that the previously described up-regulation of <it>EGFR</it> and down-regulation of <it>ERBB4</it> occurred in all analyzed RCC types, whereas down-regulation of <it>ERBB2</it> and <it>LRIG1</it> was only present in ccRCC. These observations illustrate the need to evaluate the different RCC types individually when analyzing molecules of interest and potential biological markers.</p> |
topic |
Renal cell carcinoma EGFR ERBB2 ERBB3 ERRB4 LRIG1 Survival |
url |
http://www.biomedcentral.com/1756-0500/5/216 |
work_keys_str_mv |
AT thomassonmarcus geneexpressionpatternoftheepidermalgrowthfactorreceptorfamilyandlrig1inrenalcellcarcinoma AT hedmanhakan geneexpressionpatternoftheepidermalgrowthfactorreceptorfamilyandlrig1inrenalcellcarcinoma AT ljungbergborje geneexpressionpatternoftheepidermalgrowthfactorreceptorfamilyandlrig1inrenalcellcarcinoma AT henrikssonroger geneexpressionpatternoftheepidermalgrowthfactorreceptorfamilyandlrig1inrenalcellcarcinoma |
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