GSTM1 , GSTT1 , and GSTP1 polymorphisms and colorectal cancer risk in Polish nonsmokers
Glutathione S-transferase (GST) enzymes are responsible for cellular detoxification of many carcinogens and are important anticancer elements. This study assessed potential relationships between , , and polymorphisms and colorectal cancer (CRC) risk in Polish nonsmokers. We also analyzed the influen...
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Published in | Oncotarget Vol. 9; no. 30; pp. 21224 - 21230 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Impact Journals LLC
20.04.2018
|
Subjects | |
Online Access | Get full text |
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Summary: | Glutathione S-transferase (GST) enzymes are responsible for cellular detoxification of many carcinogens and are important anticancer elements. This study assessed potential relationships between
,
, and
polymorphisms and colorectal cancer (CRC) risk in Polish nonsmokers. We also analyzed the influence of
gene polymorphisms on CRC clinical and histopathological features. Our study included 197 CRC patients and 104 healthy controls.
,
, and
polymorphisms were evaluated using qPCR. Polymorphism frequencies observed in our control group corresponded to those in other European populations. The
and
genotypes were observed with similar frequencies in both CRC patients and controls (
: 46.7% vs. 45.2%;
: 15.7% vs. 20.2%).
,
, and
genotype frequencies were respectively 42.1%, 48.2%, and 9.6% in patients and 48.1%, 42.3%, and 9.6% in controls.
polymorphism correlated with higher tumor grade in CRC patients, and the
genotype was associated with more frequent metastasis to lymph nodes (pN classification). Our results suggest that
gene polymorphisms may influence CRC tumor grade and stage. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1949-2553 1949-2553 |
DOI: | 10.18632/oncotarget.25031 |