The Clinical Significance of Microsatellite Instability in Patients with Right-sided Colorectal Cancer
Background : /Aims: Colorectal cancer (CRC) with microsatellite instability (MSI) has a better prognosis than CRC with microsatellite stable (MSS). Recent studies have reported biological differences according to tumor location in CRC. In this study, we investigated the clinical significance of MSI...
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doaj-c214c73180ad4eb2afb6f1f8b0bc3ba82020-11-25T01:19:31ZengJin Publishing & Printing Co.The Korean Journal of Gastroenterology1598-99922019-03-0173315916610.4166/kjg.2019.73.3.159kjg.2019.73.3.159The Clinical Significance of Microsatellite Instability in Patients with Right-sided Colorectal CancerSeo Ae Han0Jae Hyun Kim1Ji Hun Choi2Do Hyeong Lee3Kyoungwon Jung4Sung Eun Kim5Won Moon6Moo In Park7Seun Ja Park8Department of Internal Medicine, Kosin University College of Medicine, Busan, KoreaDepartment of Internal Medicine, Kosin University College of Medicine, Busan, KoreaDepartment of Internal Medicine, Kosin University College of Medicine, Busan, KoreaDepartment of Internal Medicine, Kosin University College of Medicine, Busan, KoreaDepartment of Internal Medicine, Kosin University College of Medicine, Busan, KoreaDepartment of Internal Medicine, Kosin University College of Medicine, Busan, KoreaDepartment of Internal Medicine, Kosin University College of Medicine, Busan, KoreaDepartment of Internal Medicine, Kosin University College of Medicine, Busan, KoreaDepartment of Internal Medicine, Kosin University College of Medicine, Busan, KoreaBackground : /Aims: Colorectal cancer (CRC) with microsatellite instability (MSI) has a better prognosis than CRC with microsatellite stable (MSS). Recent studies have reported biological differences according to tumor location in CRC. In this study, we investigated the clinical significance of MSI in patients with right-sided CRC. Methods : : The medical records of 1,009 CRC patients diagnosed at our institute between October 2004 and December 2016 with MSI test results were retrospectively reviewed. The long-term outcomes of CRC patients with MSI were assessed with respect to tumor location using Kaplan-Meier curves and Cox regression models. Results : : The median follow-up duration for all 1,009 study subjects was 25 months (interquartile range, 15-38). One hundred twenty-four of the study subjects had MSI (12.3%) and 250 had right-sided CRC (24.8%). The patients with MSI and right-sided CRC had better disease-free survival (DFS) than those with MSS as determined by the log-rank test (p=0.013), and this result was significant in females (p=0.035) but not in males with right-sided CRC. Multivariate Cox regression analysis showed MSS significantly predicted poor DFS in patients with right-sided CRC (hazard ratio 3.97, 95% CI 1.30-12.15, p=0.016) and in female patients (hazard ratio 4.69, 95% CI 1.03-21.36, p=0.045). Conclusion : s: The study shows MSI is a useful predictor of DFS in patients with right-sided CRC, especially in female patients.http://www.kjg.or.kr/journal/view.html?doi=10.4166/kjg.2019.73.3.159Microsatellite instabilityColorectal neoplasmsGender identity |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Seo Ae Han Jae Hyun Kim Ji Hun Choi Do Hyeong Lee Kyoungwon Jung Sung Eun Kim Won Moon Moo In Park Seun Ja Park |
spellingShingle |
Seo Ae Han Jae Hyun Kim Ji Hun Choi Do Hyeong Lee Kyoungwon Jung Sung Eun Kim Won Moon Moo In Park Seun Ja Park The Clinical Significance of Microsatellite Instability in Patients with Right-sided Colorectal Cancer The Korean Journal of Gastroenterology Microsatellite instability Colorectal neoplasms Gender identity |
author_facet |
Seo Ae Han Jae Hyun Kim Ji Hun Choi Do Hyeong Lee Kyoungwon Jung Sung Eun Kim Won Moon Moo In Park Seun Ja Park |
author_sort |
Seo Ae Han |
title |
The Clinical Significance of Microsatellite Instability in Patients with Right-sided Colorectal Cancer |
title_short |
The Clinical Significance of Microsatellite Instability in Patients with Right-sided Colorectal Cancer |
title_full |
The Clinical Significance of Microsatellite Instability in Patients with Right-sided Colorectal Cancer |
title_fullStr |
The Clinical Significance of Microsatellite Instability in Patients with Right-sided Colorectal Cancer |
title_full_unstemmed |
The Clinical Significance of Microsatellite Instability in Patients with Right-sided Colorectal Cancer |
title_sort |
clinical significance of microsatellite instability in patients with right-sided colorectal cancer |
publisher |
Jin Publishing & Printing Co. |
series |
The Korean Journal of Gastroenterology |
issn |
1598-9992 |
publishDate |
2019-03-01 |
description |
Background : /Aims: Colorectal cancer (CRC) with microsatellite instability (MSI) has a better prognosis than CRC with microsatellite stable (MSS). Recent studies have reported biological differences according to tumor location in CRC. In this study, we investigated the clinical significance of MSI in patients with right-sided CRC. Methods : : The medical records of 1,009 CRC patients diagnosed at our institute between October 2004 and December 2016 with MSI test results were retrospectively reviewed. The long-term outcomes of CRC patients with MSI were assessed with respect to tumor location using Kaplan-Meier curves and Cox regression models. Results : : The median follow-up duration for all 1,009 study subjects was 25 months (interquartile range, 15-38). One hundred twenty-four of the study subjects had MSI (12.3%) and 250 had right-sided CRC (24.8%). The patients with MSI and right-sided CRC had better disease-free survival (DFS) than those with MSS as determined by the log-rank test (p=0.013), and this result was significant in females (p=0.035) but not in males with right-sided CRC. Multivariate Cox regression analysis showed MSS significantly predicted poor DFS in patients with right-sided CRC (hazard ratio 3.97, 95% CI 1.30-12.15, p=0.016) and in female patients (hazard ratio 4.69, 95% CI 1.03-21.36, p=0.045). Conclusion : s: The study shows MSI is a useful predictor of DFS in patients with right-sided CRC, especially in female patients. |
topic |
Microsatellite instability Colorectal neoplasms Gender identity |
url |
http://www.kjg.or.kr/journal/view.html?doi=10.4166/kjg.2019.73.3.159 |
work_keys_str_mv |
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