Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness?
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Cirúrgica Brasileira (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502014001500044 |
Resumo: | PURPOSE: The aim of this study was to evaluate the expression of leptin and its receptor in histological sections of prostate tumors, and their association with prognostic factors. METHODS: A total of 532 surgical specimens from prostate cancer were studied. After histopathological diagnosis, the samples were included in tissue microarrays containing cores from tumor and non-tumor (benign prostatic hyperplasia) areas. These were immunostained with anti-leptin and anti-leptin-receptor antibodies. Objective and subjective analyses were performed. Student's-t-test and ANOVA were used to compare mean values, and linear regression was used to evaluate the correlation between histological results and prognostic indicators. RESULTS: Leptin receptor expression was reduced in tumors with a positive surgical margin, urethral margin involvement, and seminal vesicles invasion. Further, there was a negative correlation between the expression of leptin receptor in tumor areas and the sum of prognostic factors, suggesting that leptin receptor may predict the aggressiveness of disease. CONCLUSION: Our findings suggest that leptin receptor expression is a potential prognostic factor for PCa. Further investigation is needed to support the use of leptin receptor as a novel biomarker, although leptin itself does not seem to predict the aggressiveness of prostate cancer. |
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Acta Cirúrgica Brasileira (Online) |
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Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness?prostate cancerleptinleptin receptor PURPOSE: The aim of this study was to evaluate the expression of leptin and its receptor in histological sections of prostate tumors, and their association with prognostic factors. METHODS: A total of 532 surgical specimens from prostate cancer were studied. After histopathological diagnosis, the samples were included in tissue microarrays containing cores from tumor and non-tumor (benign prostatic hyperplasia) areas. These were immunostained with anti-leptin and anti-leptin-receptor antibodies. Objective and subjective analyses were performed. Student's-t-test and ANOVA were used to compare mean values, and linear regression was used to evaluate the correlation between histological results and prognostic indicators. RESULTS: Leptin receptor expression was reduced in tumors with a positive surgical margin, urethral margin involvement, and seminal vesicles invasion. Further, there was a negative correlation between the expression of leptin receptor in tumor areas and the sum of prognostic factors, suggesting that leptin receptor may predict the aggressiveness of disease. CONCLUSION: Our findings suggest that leptin receptor expression is a potential prognostic factor for PCa. Further investigation is needed to support the use of leptin receptor as a novel biomarker, although leptin itself does not seem to predict the aggressiveness of prostate cancer. Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502014001500044Acta Cirúrgica Brasileira v.29 suppl.3 2014reponame:Acta Cirúrgica Brasileira (Online)instname:Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC)instacron:SBDPC10.1590/S0102-86502014001700009info:eu-repo/semantics/openAccessOsório,Clarice F.Souza,Diogo B. deGallo,Carla B. M.Costa,Waldemar S.Sampaio,Francisco J. B.eng2015-07-30T00:00:00Zoai:scielo:S0102-86502014001500044Revistahttps://www.bvs-vet.org.br/vetindex/periodicos/acta-cirurgica-brasileira/https://old.scielo.br/oai/scielo-oai.php||sgolden@terra.com.br0102-86501678-2674opendoar:2015-07-30T00:00Acta Cirúrgica Brasileira (Online) - Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC)false |
dc.title.none.fl_str_mv |
Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness? |
title |
Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness? |
spellingShingle |
Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness? Osório,Clarice F. prostate cancer leptin leptin receptor |
title_short |
Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness? |
title_full |
Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness? |
title_fullStr |
Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness? |
title_full_unstemmed |
Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness? |
title_sort |
Leptin and leptin receptor expressions in prostate tumors may predict disease aggressiveness? |
author |
Osório,Clarice F. |
author_facet |
Osório,Clarice F. Souza,Diogo B. de Gallo,Carla B. M. Costa,Waldemar S. Sampaio,Francisco J. B. |
author_role |
author |
author2 |
Souza,Diogo B. de Gallo,Carla B. M. Costa,Waldemar S. Sampaio,Francisco J. B. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Osório,Clarice F. Souza,Diogo B. de Gallo,Carla B. M. Costa,Waldemar S. Sampaio,Francisco J. B. |
dc.subject.por.fl_str_mv |
prostate cancer leptin leptin receptor |
topic |
prostate cancer leptin leptin receptor |
description |
PURPOSE: The aim of this study was to evaluate the expression of leptin and its receptor in histological sections of prostate tumors, and their association with prognostic factors. METHODS: A total of 532 surgical specimens from prostate cancer were studied. After histopathological diagnosis, the samples were included in tissue microarrays containing cores from tumor and non-tumor (benign prostatic hyperplasia) areas. These were immunostained with anti-leptin and anti-leptin-receptor antibodies. Objective and subjective analyses were performed. Student's-t-test and ANOVA were used to compare mean values, and linear regression was used to evaluate the correlation between histological results and prognostic indicators. RESULTS: Leptin receptor expression was reduced in tumors with a positive surgical margin, urethral margin involvement, and seminal vesicles invasion. Further, there was a negative correlation between the expression of leptin receptor in tumor areas and the sum of prognostic factors, suggesting that leptin receptor may predict the aggressiveness of disease. CONCLUSION: Our findings suggest that leptin receptor expression is a potential prognostic factor for PCa. Further investigation is needed to support the use of leptin receptor as a novel biomarker, although leptin itself does not seem to predict the aggressiveness of prostate cancer. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502014001500044 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502014001500044 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0102-86502014001700009 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia |
publisher.none.fl_str_mv |
Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia |
dc.source.none.fl_str_mv |
Acta Cirúrgica Brasileira v.29 suppl.3 2014 reponame:Acta Cirúrgica Brasileira (Online) instname:Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC) instacron:SBDPC |
instname_str |
Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC) |
instacron_str |
SBDPC |
institution |
SBDPC |
reponame_str |
Acta Cirúrgica Brasileira (Online) |
collection |
Acta Cirúrgica Brasileira (Online) |
repository.name.fl_str_mv |
Acta Cirúrgica Brasileira (Online) - Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC) |
repository.mail.fl_str_mv |
||sgolden@terra.com.br |
_version_ |
1752126443057315840 |