Caveolin 1 protein expression in renal cell carcinoma predicts survival

Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Me...
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Autor*in:	Steffens, Sandra [verfasserIn] Schrader, Andres J Blasig, Hanna Vetter, Gesa Eggers, Hendrik Tränkenschuh, Wolfgang Kuczyk, Markus A Serth, Jürgen

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2011

Schlagwörter:	Bortezomib Renal Cell Carcinoma CAV1 Expression Tumor Cell Membrane Tissue Micro Array

Anmerkung:	© Steffens et al; licensee BioMed Central Ltd. 2011

Übergeordnetes Werk:	Enthalten in: BMC urology - London : BioMed Central, 2001, 11(2011), 1 vom: 07. Dez.
Übergeordnetes Werk:	volume:11 ; year:2011 ; number:1 ; day:07 ; month:12

Links:	Volltext

DOI / URN:	10.1186/1471-2490-11-25

Katalog-ID:	SPR028200969

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520			\|a Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients.
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allfields	10.1186/1471-2490-11-25 doi (DE-627)SPR028200969 (SPR)1471-2490-11-25-e DE-627 ger DE-627 rakwb eng Steffens, Sandra verfasserin aut Caveolin 1 protein expression in renal cell carcinoma predicts survival 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Steffens et al; licensee BioMed Central Ltd. 2011 Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients. Bortezomib (dpeaa)DE-He213 Renal Cell Carcinoma (dpeaa)DE-He213 CAV1 Expression (dpeaa)DE-He213 Tumor Cell Membrane (dpeaa)DE-He213 Tissue Micro Array (dpeaa)DE-He213 Schrader, Andres J aut Blasig, Hanna aut Vetter, Gesa aut Eggers, Hendrik aut Tränkenschuh, Wolfgang aut Kuczyk, Markus A aut Serth, Jürgen aut Enthalten in BMC urology London : BioMed Central, 2001 11(2011), 1 vom: 07. Dez. (DE-627)335488811 (DE-600)2059857-9 1471-2490 nnns volume:11 year:2011 number:1 day:07 month:12 https://dx.doi.org/10.1186/1471-2490-11-25 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2011 1 07 12
spelling	10.1186/1471-2490-11-25 doi (DE-627)SPR028200969 (SPR)1471-2490-11-25-e DE-627 ger DE-627 rakwb eng Steffens, Sandra verfasserin aut Caveolin 1 protein expression in renal cell carcinoma predicts survival 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Steffens et al; licensee BioMed Central Ltd. 2011 Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients. Bortezomib (dpeaa)DE-He213 Renal Cell Carcinoma (dpeaa)DE-He213 CAV1 Expression (dpeaa)DE-He213 Tumor Cell Membrane (dpeaa)DE-He213 Tissue Micro Array (dpeaa)DE-He213 Schrader, Andres J aut Blasig, Hanna aut Vetter, Gesa aut Eggers, Hendrik aut Tränkenschuh, Wolfgang aut Kuczyk, Markus A aut Serth, Jürgen aut Enthalten in BMC urology London : BioMed Central, 2001 11(2011), 1 vom: 07. Dez. (DE-627)335488811 (DE-600)2059857-9 1471-2490 nnns volume:11 year:2011 number:1 day:07 month:12 https://dx.doi.org/10.1186/1471-2490-11-25 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2011 1 07 12
allfields_unstemmed	10.1186/1471-2490-11-25 doi (DE-627)SPR028200969 (SPR)1471-2490-11-25-e DE-627 ger DE-627 rakwb eng Steffens, Sandra verfasserin aut Caveolin 1 protein expression in renal cell carcinoma predicts survival 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Steffens et al; licensee BioMed Central Ltd. 2011 Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients. Bortezomib (dpeaa)DE-He213 Renal Cell Carcinoma (dpeaa)DE-He213 CAV1 Expression (dpeaa)DE-He213 Tumor Cell Membrane (dpeaa)DE-He213 Tissue Micro Array (dpeaa)DE-He213 Schrader, Andres J aut Blasig, Hanna aut Vetter, Gesa aut Eggers, Hendrik aut Tränkenschuh, Wolfgang aut Kuczyk, Markus A aut Serth, Jürgen aut Enthalten in BMC urology London : BioMed Central, 2001 11(2011), 1 vom: 07. Dez. (DE-627)335488811 (DE-600)2059857-9 1471-2490 nnns volume:11 year:2011 number:1 day:07 month:12 https://dx.doi.org/10.1186/1471-2490-11-25 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2011 1 07 12
allfieldsGer	10.1186/1471-2490-11-25 doi (DE-627)SPR028200969 (SPR)1471-2490-11-25-e DE-627 ger DE-627 rakwb eng Steffens, Sandra verfasserin aut Caveolin 1 protein expression in renal cell carcinoma predicts survival 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Steffens et al; licensee BioMed Central Ltd. 2011 Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients. Bortezomib (dpeaa)DE-He213 Renal Cell Carcinoma (dpeaa)DE-He213 CAV1 Expression (dpeaa)DE-He213 Tumor Cell Membrane (dpeaa)DE-He213 Tissue Micro Array (dpeaa)DE-He213 Schrader, Andres J aut Blasig, Hanna aut Vetter, Gesa aut Eggers, Hendrik aut Tränkenschuh, Wolfgang aut Kuczyk, Markus A aut Serth, Jürgen aut Enthalten in BMC urology London : BioMed Central, 2001 11(2011), 1 vom: 07. Dez. (DE-627)335488811 (DE-600)2059857-9 1471-2490 nnns volume:11 year:2011 number:1 day:07 month:12 https://dx.doi.org/10.1186/1471-2490-11-25 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2011 1 07 12
allfieldsSound	10.1186/1471-2490-11-25 doi (DE-627)SPR028200969 (SPR)1471-2490-11-25-e DE-627 ger DE-627 rakwb eng Steffens, Sandra verfasserin aut Caveolin 1 protein expression in renal cell carcinoma predicts survival 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Steffens et al; licensee BioMed Central Ltd. 2011 Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients. Bortezomib (dpeaa)DE-He213 Renal Cell Carcinoma (dpeaa)DE-He213 CAV1 Expression (dpeaa)DE-He213 Tumor Cell Membrane (dpeaa)DE-He213 Tissue Micro Array (dpeaa)DE-He213 Schrader, Andres J aut Blasig, Hanna aut Vetter, Gesa aut Eggers, Hendrik aut Tränkenschuh, Wolfgang aut Kuczyk, Markus A aut Serth, Jürgen aut Enthalten in BMC urology London : BioMed Central, 2001 11(2011), 1 vom: 07. Dez. (DE-627)335488811 (DE-600)2059857-9 1471-2490 nnns volume:11 year:2011 number:1 day:07 month:12 https://dx.doi.org/10.1186/1471-2490-11-25 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2011 1 07 12
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author	Steffens, Sandra
spellingShingle	Steffens, Sandra misc Bortezomib misc Renal Cell Carcinoma misc CAV1 Expression misc Tumor Cell Membrane misc Tissue Micro Array Caveolin 1 protein expression in renal cell carcinoma predicts survival
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topic_title	Caveolin 1 protein expression in renal cell carcinoma predicts survival Bortezomib (dpeaa)DE-He213 Renal Cell Carcinoma (dpeaa)DE-He213 CAV1 Expression (dpeaa)DE-He213 Tumor Cell Membrane (dpeaa)DE-He213 Tissue Micro Array (dpeaa)DE-He213
topic	misc Bortezomib misc Renal Cell Carcinoma misc CAV1 Expression misc Tumor Cell Membrane misc Tissue Micro Array
topic_unstemmed	misc Bortezomib misc Renal Cell Carcinoma misc CAV1 Expression misc Tumor Cell Membrane misc Tissue Micro Array
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title	Caveolin 1 protein expression in renal cell carcinoma predicts survival
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title_full	Caveolin 1 protein expression in renal cell carcinoma predicts survival
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title_sort	caveolin 1 protein expression in renal cell carcinoma predicts survival
title_auth	Caveolin 1 protein expression in renal cell carcinoma predicts survival
abstract	Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients. © Steffens et al; licensee BioMed Central Ltd. 2011
abstractGer	Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients. © Steffens et al; licensee BioMed Central Ltd. 2011
abstract_unstemmed	Background Caveolae play a significant role in disease phenotypes such as cancer, diabetes, bladder dysfunction, and muscular dystrophy. The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. Therefore, our data encourage further investigations to enlighten the role of CAV1 and its function as diagnostic and prognostic marker in serum and/or urine of RCC patients. © Steffens et al; licensee BioMed Central Ltd. 2011
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title_short	Caveolin 1 protein expression in renal cell carcinoma predicts survival
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The aim of this study was to elucidate the caveolin-1 ( CAV1) protein expression in renal cell cancer (RCC) and to determine its potential prognostic relevance. Methods 289 clear cell RCC tissue specimens were collected from patients undergoing surgery for renal tumors. Both cytoplasmic and membranous CAV1 expression were determined by immunohistochemistry and correlated with clinical variables. Survival analysis was carried out for 169 evaluable patients with a median follow up of 80.5 months (interquartile range (IQR), 24.5 - 131.7 months). Results A high CAV1 expression in the tumor cell cytoplasm was significantly associated with male sex (p = 0.04), a positive nodal status (p = 0.04), and poor tumor differentiation (p = 0.04). In contrast, a higher than average (i.e. > median) CAV1 expression in tumor cell membranes was only linked to male sex (p = 0.03). Kaplan-Meier analysis disclosed significant differences in 5-year overall (51.4 vs. 75.2%, p = 0.001) and tumor specific survival (55.3 vs. 80.1%, p = 0.001) for patients with higher and lower than average cytoplasmic CAV1 expression levels, respectively. Applying multivariable Cox regression analysis a high CAV1 protein expression level in the tumor cell cytoplasm could be identified as an independent poor prognostic marker of both overall (p = 0.02) and tumor specific survival (p = 0.03) in clear cell RCC patients. Conclusion Over expression of caveolin-1 in the tumour cell cytoplasm predicts a poor prognosis of patients with clear cell RCC. CAV1 is likely to be a useful prognostic marker and may play an important role in tumour progression. 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Caveolin 1 protein expression in renal cell carcinoma predicts survival

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