Single Nucleotide Polymorphisms as Prognostic and Predictive Factors of Adjuvant Chemotherapy in Colorectal Cancer of Stages I and II

Colorectal cancer (CRC) is a highly heterogeneous disease regarding the stage at time of diagnosis and there is special attention regarding adjuvant chemotherapy in unselected patients with stage I and stage II. The clinicohistologically based TNM staging system with emphasis on histological evaluat...

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Main Authors: Matej Horvat, Uroš Potočnik, Katja Repnik, Rajko Kavalar, Borut Štabuc
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Gastroenterology Research and Practice
Online Access:http://dx.doi.org/10.1155/2016/2139489
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author Matej Horvat
Uroš Potočnik
Katja Repnik
Rajko Kavalar
Borut Štabuc
author_facet Matej Horvat
Uroš Potočnik
Katja Repnik
Rajko Kavalar
Borut Štabuc
author_sort Matej Horvat
collection DOAJ
description Colorectal cancer (CRC) is a highly heterogeneous disease regarding the stage at time of diagnosis and there is special attention regarding adjuvant chemotherapy in unselected patients with stage I and stage II. The clinicohistologically based TNM staging system with emphasis on histological evaluation of primary tumor and resected regional lymph nodes remains the standard of staging, but it has restricted sensitivity resulting in false downward stage migration. Molecular characteristics might predispose tumors to a worse prognosis and identification of those enables identifying patients with high risk of disease recurrence. Suitable predictive markers also enable choosing the most appropriate therapy. The current challenge facing adjuvant chemotherapy in stages I and II CRC is choosing patients with the highest risk of disease recurrence who are going to derive most benefit without facing unnecessary adverse effects. Single nucleotide polymorphisms (SNPs) are one of the potential molecular markers that might help us identify patients with unfavorable prognostic factors regarding disease initiation and recurrence and could determine selection of an appropriate chemotherapy regimen in the adjuvant and metastatic setting. In this paper, we discuss SNPs of genes involved in the multistep processes of cancerogenesis, metastasis, and the metabolism of chemotherapy that might prove clinically significant.
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spelling doaj-art-c85e56c5058349b489c80085f646ed212025-08-20T03:24:02ZengWileyGastroenterology Research and Practice1687-61211687-630X2016-01-01201610.1155/2016/21394892139489Single Nucleotide Polymorphisms as Prognostic and Predictive Factors of Adjuvant Chemotherapy in Colorectal Cancer of Stages I and IIMatej Horvat0Uroš Potočnik1Katja Repnik2Rajko Kavalar3Borut Štabuc4University Medical Centre Maribor, 2000 Maribor, SloveniaFaculty of Medicine, Centre for Human Molecular Genetics and Pharmacogenomics, University of Maribor, 2000 Maribor, SloveniaFaculty of Medicine, Centre for Human Molecular Genetics and Pharmacogenomics, University of Maribor, 2000 Maribor, SloveniaUniversity Medical Centre Maribor, 2000 Maribor, SloveniaUniversity Medical Centre Ljubljana, 1000 Ljubljana, SloveniaColorectal cancer (CRC) is a highly heterogeneous disease regarding the stage at time of diagnosis and there is special attention regarding adjuvant chemotherapy in unselected patients with stage I and stage II. The clinicohistologically based TNM staging system with emphasis on histological evaluation of primary tumor and resected regional lymph nodes remains the standard of staging, but it has restricted sensitivity resulting in false downward stage migration. Molecular characteristics might predispose tumors to a worse prognosis and identification of those enables identifying patients with high risk of disease recurrence. Suitable predictive markers also enable choosing the most appropriate therapy. The current challenge facing adjuvant chemotherapy in stages I and II CRC is choosing patients with the highest risk of disease recurrence who are going to derive most benefit without facing unnecessary adverse effects. Single nucleotide polymorphisms (SNPs) are one of the potential molecular markers that might help us identify patients with unfavorable prognostic factors regarding disease initiation and recurrence and could determine selection of an appropriate chemotherapy regimen in the adjuvant and metastatic setting. In this paper, we discuss SNPs of genes involved in the multistep processes of cancerogenesis, metastasis, and the metabolism of chemotherapy that might prove clinically significant.http://dx.doi.org/10.1155/2016/2139489
spellingShingle Matej Horvat
Uroš Potočnik
Katja Repnik
Rajko Kavalar
Borut Štabuc
Single Nucleotide Polymorphisms as Prognostic and Predictive Factors of Adjuvant Chemotherapy in Colorectal Cancer of Stages I and II
Gastroenterology Research and Practice
title Single Nucleotide Polymorphisms as Prognostic and Predictive Factors of Adjuvant Chemotherapy in Colorectal Cancer of Stages I and II
title_full Single Nucleotide Polymorphisms as Prognostic and Predictive Factors of Adjuvant Chemotherapy in Colorectal Cancer of Stages I and II
title_fullStr Single Nucleotide Polymorphisms as Prognostic and Predictive Factors of Adjuvant Chemotherapy in Colorectal Cancer of Stages I and II
title_full_unstemmed Single Nucleotide Polymorphisms as Prognostic and Predictive Factors of Adjuvant Chemotherapy in Colorectal Cancer of Stages I and II
title_short Single Nucleotide Polymorphisms as Prognostic and Predictive Factors of Adjuvant Chemotherapy in Colorectal Cancer of Stages I and II
title_sort single nucleotide polymorphisms as prognostic and predictive factors of adjuvant chemotherapy in colorectal cancer of stages i and ii
url http://dx.doi.org/10.1155/2016/2139489
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