DR4 mediates the progression, invasion, metastasis and survival of colorectal cancer through the Sp1/NF1 switch axis on genomic locus

Shenshen Wu, Qingtao Meng, Chengcheng Zhang, Hao Sun, Runze Lu, Na Gao, Hongbao Yang, Xiaobo Li, Michael Aschner, Rui Chen

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The single nucleotide polymorphism (SNP), -397G>T (rs13278062) polymorphism, in the promoter of Death Receptor 4 (DR4) had been reported to be associated with a significantly increased risk for bladder cancer. However, the association of this SNP with the risk of colorectal cancer has not been reported. In this study, we performed a case-control study in 1,078 colorectal cancer patients and 1,175 matched healthy controls to evaluate the association of the potential functional genetic variants in DR4 with risk and survival of colorectal cancer. PCR-TaqMan were used to genotype the rs13278062, rs1000294 and rs2235126 polymorphisms. We found that subjects carrying the rs13278062 GT/TT genotypes had a significantly lower risk and increased survival time when compared to the GG genotype. We also constructed the rs13278062 GT/TT genotype in SW480 and SW620 cells (rs13278062 is GG in both cell lines) with the CRISPR/Cas9 system. Flow cytometry experiments showed that the rs13278062 TT genotype promoted apoptosis in colorectal cancer cells. In vitro and in vivo experiments established that the rs13278062 G to T mutation inhibited carcinogenesis and metastasis of colorectal cancer. Chromatin immunoprecipitation (ChIP) assays revealed that the rs13278062 G>T polymorphism altered the binding affinity of the transcription factors Sp1/NF1 to the rs13278062 mutation region. Immunohistochemistry, western blot, and qPCR corroborated that the rs13278062 GT/TT genotypes increased the expression of DR4 protein in colorectal cancer tissues and cells. In conclusion, these findings indicate that DR4 mediated progression, invasion, metastasis and survival of colorectal cancer via the Sp1/NF1 switch axis on genomics locus.

Original languageEnglish (US)
JournalInternational Journal of Cancer
DOIs
StateAccepted/In press - Jan 1 2018

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TNF-Related Apoptosis-Inducing Ligand Receptors
Colorectal Neoplasms
Neoplasm Metastasis
Genotype
Survival
Single Nucleotide Polymorphism
Clustered Regularly Interspaced Short Palindromic Repeats
Mutation
Chromatin Immunoprecipitation
Genomics
Urinary Bladder Neoplasms
Case-Control Studies
Flow Cytometry
Carcinogenesis
Western Blotting
Immunohistochemistry
Apoptosis
Cell Line
Polymerase Chain Reaction

Keywords

  • Colorectal cancer
  • Development
  • DR4
  • Survival

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

DR4 mediates the progression, invasion, metastasis and survival of colorectal cancer through the Sp1/NF1 switch axis on genomic locus. / Wu, Shenshen; Meng, Qingtao; Zhang, Chengcheng; Sun, Hao; Lu, Runze; Gao, Na; Yang, Hongbao; Li, Xiaobo; Aschner, Michael; Chen, Rui.

In: International Journal of Cancer, 01.01.2018.

Research output: Contribution to journalArticle

Wu, Shenshen ; Meng, Qingtao ; Zhang, Chengcheng ; Sun, Hao ; Lu, Runze ; Gao, Na ; Yang, Hongbao ; Li, Xiaobo ; Aschner, Michael ; Chen, Rui. / DR4 mediates the progression, invasion, metastasis and survival of colorectal cancer through the Sp1/NF1 switch axis on genomic locus. In: International Journal of Cancer. 2018.
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AU - Gao, Na

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