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Identification of the TP53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients
The TP53-induced glycolysis and apoptosis regulator (TIGAR) is a p53 target gene known to regulate glycolysis by acting as fructose bis-phosphatase (FBPase) and modulate reactive oxygen species. TIGAR expression has been implicated in oncogenesis and progression of several human cancers. However, TI...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
D.A. Spandidos
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4750753/ https://www.ncbi.nlm.nih.gov/pubmed/26675982 http://dx.doi.org/10.3892/or.2015.4494 |
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author | AL-KHAYAL, KHAYAL ABDULLA, MAHA AL-OBEED, OMAR KATTAN, WAEL AL ZUBAIDI, AHMAD VAALI-MOHAMMED, MANSOOR-ALI ALSHEIKH, ABDULMALIK AHMAD, REHAN |
author_facet | AL-KHAYAL, KHAYAL ABDULLA, MAHA AL-OBEED, OMAR KATTAN, WAEL AL ZUBAIDI, AHMAD VAALI-MOHAMMED, MANSOOR-ALI ALSHEIKH, ABDULMALIK AHMAD, REHAN |
author_sort | AL-KHAYAL, KHAYAL |
collection | PubMed |
description | The TP53-induced glycolysis and apoptosis regulator (TIGAR) is a p53 target gene known to regulate glycolysis by acting as fructose bis-phosphatase (FBPase) and modulate reactive oxygen species. TIGAR expression has been implicated in oncogenesis and progression of several human cancers. However, TIGAR expression is not known in various stages of colorectal cancer (CRC). There is an increase in the colorectal cancer incidence in Saudi Arabia. We sought to analyze TIGAR expression in this ethnic group. The aim of this study was to investigate the TIGAR expression in colorectal cancer (CRC) patients from Saudi Arabia. Tissue microarray (TMA) was constructed from 22 matched colorectal tumor tissues and adjacent normal tissues. TIGAR expression was examined in TMA slide using immunohistochemistry. TIGAR mRNA was determined in 14 matched tumor tissue and adjacent normal tissue. TIGAR protein expression was also examined in CRC tumor tissues and cell lines. Statistical analyses (t-test) were applied to evaluate the significance of TIGAR expression. TIGAR mRNA level was upregulated significantly in stage II (p<0.01) and stage III (p<0.05) when compared to adjacent normal tissue. Immunohistochemical studies revealed that TIGAR expression was increased in colorectal cancer. Strong TIGAR positive staining was found in 68% (15/22) of the tumor samples with nuclear localization. TIGAR staining was found to be significantly increased in early stage (stage I and II) CRC (p<0.05) and late stage (stage III and IV) CRC (p<0.01). TIGAR protein was also found to be highly expressed in stage II and III colorectal cancer tissues and CRC cell lines. These findings indicate that TIGAR is highly expressed at the mRNA and protein levels in colorectal cancer with prominent nuclear localization. TIGAR expression may be used as a bio-marker for detection of colorectal cancer and can be used as a target for developing therapeutics for the treatment of colorectal cancer. |
format | Online Article Text |
id | pubmed-4750753 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | D.A. Spandidos |
record_format | MEDLINE/PubMed |
spelling | pubmed-47507532016-02-17 Identification of the TP53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients AL-KHAYAL, KHAYAL ABDULLA, MAHA AL-OBEED, OMAR KATTAN, WAEL AL ZUBAIDI, AHMAD VAALI-MOHAMMED, MANSOOR-ALI ALSHEIKH, ABDULMALIK AHMAD, REHAN Oncol Rep Articles The TP53-induced glycolysis and apoptosis regulator (TIGAR) is a p53 target gene known to regulate glycolysis by acting as fructose bis-phosphatase (FBPase) and modulate reactive oxygen species. TIGAR expression has been implicated in oncogenesis and progression of several human cancers. However, TIGAR expression is not known in various stages of colorectal cancer (CRC). There is an increase in the colorectal cancer incidence in Saudi Arabia. We sought to analyze TIGAR expression in this ethnic group. The aim of this study was to investigate the TIGAR expression in colorectal cancer (CRC) patients from Saudi Arabia. Tissue microarray (TMA) was constructed from 22 matched colorectal tumor tissues and adjacent normal tissues. TIGAR expression was examined in TMA slide using immunohistochemistry. TIGAR mRNA was determined in 14 matched tumor tissue and adjacent normal tissue. TIGAR protein expression was also examined in CRC tumor tissues and cell lines. Statistical analyses (t-test) were applied to evaluate the significance of TIGAR expression. TIGAR mRNA level was upregulated significantly in stage II (p<0.01) and stage III (p<0.05) when compared to adjacent normal tissue. Immunohistochemical studies revealed that TIGAR expression was increased in colorectal cancer. Strong TIGAR positive staining was found in 68% (15/22) of the tumor samples with nuclear localization. TIGAR staining was found to be significantly increased in early stage (stage I and II) CRC (p<0.05) and late stage (stage III and IV) CRC (p<0.01). TIGAR protein was also found to be highly expressed in stage II and III colorectal cancer tissues and CRC cell lines. These findings indicate that TIGAR is highly expressed at the mRNA and protein levels in colorectal cancer with prominent nuclear localization. TIGAR expression may be used as a bio-marker for detection of colorectal cancer and can be used as a target for developing therapeutics for the treatment of colorectal cancer. D.A. Spandidos 2016-03 2015-12-17 /pmc/articles/PMC4750753/ /pubmed/26675982 http://dx.doi.org/10.3892/or.2015.4494 Text en Copyright: © Al-Khayal et al. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/) , which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
spellingShingle | Articles AL-KHAYAL, KHAYAL ABDULLA, MAHA AL-OBEED, OMAR KATTAN, WAEL AL ZUBAIDI, AHMAD VAALI-MOHAMMED, MANSOOR-ALI ALSHEIKH, ABDULMALIK AHMAD, REHAN Identification of the TP53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients |
title | Identification of the TP53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients |
title_full | Identification of the TP53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients |
title_fullStr | Identification of the TP53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients |
title_full_unstemmed | Identification of the TP53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients |
title_short | Identification of the TP53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients |
title_sort | identification of the tp53-induced glycolysis and apoptosis regulator in various stages of colorectal cancer patients |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4750753/ https://www.ncbi.nlm.nih.gov/pubmed/26675982 http://dx.doi.org/10.3892/or.2015.4494 |
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