The Editors-in-Chief have retracted this article at the corresponding author's request. After publication, the authors found that the data could not be replicated. This was caused by mislabelling of patient blood samples and the use of contaminated cell lines (SGC-7901, BGC-823 and MGC-803) in this study.
The authors therefore no longer have confidence in the presented results.
All authors agree to this retraction.
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