Cheng-zhong Xing

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MicroRNAs (miRNAs) are involved in cancer development and progression, acting as tumor suppressors or oncogenes. Our previous studies have revealed that miR-148a and miR-152 are significantly down-regulated in gastrointestinal cancers. Interestingly, miR-148b has the same "seed sequences" as miR-148a and miR-152. Although aberrant expression of miR-148b has(More)
OBJECTIVE The aim of the current study was to investigate which is the most suitable classification for colorectal cancer, log odds of positive lymph nodes (LODDS) classification or the classifications based on the number of positive lymph nodes (pN) and positive lymph node ratio(LNR) in a Chinese single institutional population. DESIGN Clinicopathologic(More)
Glutathione S-transferase P1 (GSTP1) is a critical enzyme in the phase II detoxification pathway. One of the common functional polymorphisms of GSTP1 is A→G at nucleotide 313, which results in an amino acid substitution (Ile105Val) at the substrate binding site and reduced catalytic activity. We evaluated the interaction between GSTP1 Val allele and(More)
BACKGROUND The aim of this study was to investigate the interaction effects of pri-let-7a-1 rs10739971 with pepsinogen C (PGC) and excision repair cross complementing group 6 (ERCC6) gene polymorphisms and its association with the risks of gastric cancer and atrophic gastritis. We hoped to identify miRNA polymorphism or a combination of several(More)
AIMS Mesenchyme forkhead 1 (FoxC2) is an epithelial-mesenchymal transition (EMT)-inducing factor. Previous studies have demonstrated that FoxC2 binds directly to the promoter region of p120-catenin (p120ctn). The aim of this study was to investigate the clinical significance of FoxC2 expression and the inter-relationship between FoxC2 and p120ctn, in(More)
BACKGROUND RESULTS from previous studies concerning the association of ERCC4 rs1800067 polymorphism with risk of cancer were inconsistent. To explore the exact relation with susceptibility, we conducted the present meta-analysis. MATERIALS AND METHODS Literature of electronic databases including PubMed, Web of Science, EMBASE, Wanfang and Chinese National(More)
OBJECTIVE To assess the rationality of the seventh edition of TNM staging system on tumor deposits (TDs) and propose a novel subclassification. SUMMARY BACKGROUND DATA The TDs had been debated for many years. The seventh edition of TNM staging system proposed a "pN1c" concept. However, the value of the modification is still debated. METHODS A total of(More)
BACKGROUND The phosphoinositide 3-kinase (PI3K)/protein kinase B (PKB, AKT)/mammalian target of rapamycin (mTOR) signaling pathway plays a critical role in angiogenesis and cell growth, proliferation, metabolism, migration, differentiation, and apoptosis. Genetic diversity in key factors of this pathway may influence protein function and signal(More)
OBJECTIVE Excision repair cross-complementing group 6 (ERCC6) is a major component of the nucleotide excision repair pathway that plays an important role in maintaining genomic stability and integrity. Several recent studies suggested a link of ERCC6 polymorphisms with susceptibility to various cancers. However, the relation of ERCC6 polymorphism with(More)
OBJECTIVE To study the expression and significance of interleukin-8 (IL-8), cyclooxygenase-2 (COX-2) and trefoil family factor 1 (TFF1) in the remnant stomach mucosa. METHODS Patients after gastrectomy were examined by upper gastrointestinal endoscopy. Biopsy specimens were obtained from stoma and the greater curvature of the upper corpus to be assessed(More)