Back to Journals » OncoTargets and Therapy » Volume 11

The CXCL12 rs1801157 polymorphism and risk of colorectal cancer: a meta-analysis

Authors Xu K, Dai H, Wang S, Zhang J, Liu T

Received 12 September 2017

Accepted for publication 5 March 2018

Published 1 May 2018 Volume 2018:11 Pages 2445—2452

DOI https://doi.org/10.2147/OTT.S151514

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Colin Mak

Peer reviewer comments 2

Editor who approved publication: Dr Ingrid Espinoza


Ke Xu,1 Hong Dai,2 Shaolong Wang,1 Jie Zhang,1 Tao Liu1

1Department of Oncology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, People’s Republic of China; 2Department of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, People’s Republic of China


Background: The CXCL12 rs1801157 polymorphism is putatively associated with the risk of malignancy. However, research results are inconsistent regarding particular cancers, especially colorectal cancer (CRC).
Methods: We conducted a meta-analysis via a comprehensive literature search of the databases PubMed and Embase. Odds ratios and their corresponding 95% confidence intervals were extracted to assess comprehensively the association between the CXCL12 rs1801157 polymorphism and the risk of CRC.
Results: According to the following models, the correlation between the presence of the CXCL12 rs1801157 polymorphism and the risk of CRC was not statistically significant: allelic (G cf. A), heterozygous (GG cf. GA), homozygous (GG cf. AA), dominant (GG cf. GA+AA), or recessive (AA cf. GA+GG) for pooled calculating. However, in subgroup analysis, elevated risk of CRC was found in the non-Caucasian group in four genetic models, while no connection was found in the Caucasian group. The sensitivity analysis confirmed that the result of the Caucasian group was stable and analyzed the heterogeneity of the non-Caucasian group.
Conclusion: This meta-analysis suggested that the CXCL12 rs1801157 polymorphism did not significantly confer a risk of CRC among Caucasians but may among non-Caucasians. These results warrant confirmation and further studies of different ethnic populations.

Keywords: CXCL12, rs1801157, polymorphism, CRC, meta-analysis

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]