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Cyclin A and cyclin D1 as significant prognostic markers in colorectal cancer patients

BACKGROUND: Colorectal cancer is a common cancer all over the world. Aberrations in the cell cycle checkpoints have been shown to be of prognostic significance in colorectal cancer. METHODS: The expression of cyclin D1, cyclin A, histone H3 and Ki-67 was examined in 60 colorectal cancer cases for co...

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Autores principales: Bahnassy, Abeer A, Zekri, Abdel-Rahman N, El-Houssini, Soumaya, El-Shehaby, Amal MR, Mahmoud, Moustafa Raafat, Abdallah, Samira, El-Serafi, Mostafa
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2004
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC524166/
https://www.ncbi.nlm.nih.gov/pubmed/15385053
http://dx.doi.org/10.1186/1471-230X-4-22
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author Bahnassy, Abeer A
Zekri, Abdel-Rahman N
El-Houssini, Soumaya
El-Shehaby, Amal MR
Mahmoud, Moustafa Raafat
Abdallah, Samira
El-Serafi, Mostafa
author_facet Bahnassy, Abeer A
Zekri, Abdel-Rahman N
El-Houssini, Soumaya
El-Shehaby, Amal MR
Mahmoud, Moustafa Raafat
Abdallah, Samira
El-Serafi, Mostafa
author_sort Bahnassy, Abeer A
collection PubMed
description BACKGROUND: Colorectal cancer is a common cancer all over the world. Aberrations in the cell cycle checkpoints have been shown to be of prognostic significance in colorectal cancer. METHODS: The expression of cyclin D1, cyclin A, histone H3 and Ki-67 was examined in 60 colorectal cancer cases for co-regulation and impact on overall survival using immunohistochemistry, southern blot and in situ hybridization techniques. Immunoreactivity was evaluated semi quantitatively by determining the staining index of the studied proteins. RESULTS: There was a significant correlation between cyclin D1 gene amplification and protein overexpression (concordance = 63.6%) and between Ki-67 and the other studied proteins. The staining index for Ki-67, cyclin A and D1 was higher in large, poorly differentiated tumors. The staining index of cyclin D1 was significantly higher in cases with deeply invasive tumors and nodal metastasis. Overexpression of cyclin A and D1 and amplification of cyclin D1 were associated with reduced overall survival. Multivariate analysis shows that cyclin D1 and A are two independent prognostic factors in colorectal cancer patients. CONCLUSIONS: Loss of cell cycle checkpoints control is common in colorectal cancer. Cyclin A and D1 are superior independent indicators of poor prognosis in colorectal cancer patients. Therefore, they may help in predicting the clinical outcome of those patients on an individual basis and could be considered important therapeutic targets.
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spelling pubmed-5241662004-10-24 Cyclin A and cyclin D1 as significant prognostic markers in colorectal cancer patients Bahnassy, Abeer A Zekri, Abdel-Rahman N El-Houssini, Soumaya El-Shehaby, Amal MR Mahmoud, Moustafa Raafat Abdallah, Samira El-Serafi, Mostafa BMC Gastroenterol Research Article BACKGROUND: Colorectal cancer is a common cancer all over the world. Aberrations in the cell cycle checkpoints have been shown to be of prognostic significance in colorectal cancer. METHODS: The expression of cyclin D1, cyclin A, histone H3 and Ki-67 was examined in 60 colorectal cancer cases for co-regulation and impact on overall survival using immunohistochemistry, southern blot and in situ hybridization techniques. Immunoreactivity was evaluated semi quantitatively by determining the staining index of the studied proteins. RESULTS: There was a significant correlation between cyclin D1 gene amplification and protein overexpression (concordance = 63.6%) and between Ki-67 and the other studied proteins. The staining index for Ki-67, cyclin A and D1 was higher in large, poorly differentiated tumors. The staining index of cyclin D1 was significantly higher in cases with deeply invasive tumors and nodal metastasis. Overexpression of cyclin A and D1 and amplification of cyclin D1 were associated with reduced overall survival. Multivariate analysis shows that cyclin D1 and A are two independent prognostic factors in colorectal cancer patients. CONCLUSIONS: Loss of cell cycle checkpoints control is common in colorectal cancer. Cyclin A and D1 are superior independent indicators of poor prognosis in colorectal cancer patients. Therefore, they may help in predicting the clinical outcome of those patients on an individual basis and could be considered important therapeutic targets. BioMed Central 2004-09-23 /pmc/articles/PMC524166/ /pubmed/15385053 http://dx.doi.org/10.1186/1471-230X-4-22 Text en Copyright © 2004 Bahnassy et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an open-access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Bahnassy, Abeer A
Zekri, Abdel-Rahman N
El-Houssini, Soumaya
El-Shehaby, Amal MR
Mahmoud, Moustafa Raafat
Abdallah, Samira
El-Serafi, Mostafa
Cyclin A and cyclin D1 as significant prognostic markers in colorectal cancer patients
title Cyclin A and cyclin D1 as significant prognostic markers in colorectal cancer patients
title_full Cyclin A and cyclin D1 as significant prognostic markers in colorectal cancer patients
title_fullStr Cyclin A and cyclin D1 as significant prognostic markers in colorectal cancer patients
title_full_unstemmed Cyclin A and cyclin D1 as significant prognostic markers in colorectal cancer patients
title_short Cyclin A and cyclin D1 as significant prognostic markers in colorectal cancer patients
title_sort cyclin a and cyclin d1 as significant prognostic markers in colorectal cancer patients
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC524166/
https://www.ncbi.nlm.nih.gov/pubmed/15385053
http://dx.doi.org/10.1186/1471-230X-4-22
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