Objective To investigate the expression and prognostic significance of Interleukin-36α (IL-36α) in colorectal cancer.Methods The expression of IL-36α was tested by immunohistochemical staining in 329 cases of colorectal cancer.According to the intensity and the proportion of positive tumor cells,all the patients were divided into IL-36α low and high expression groups.The clinicopathological factors and prognosis of patients between IL-36α low high expression groups were compared.Results Significant differences were observed in the number of patients in tumor differentiation and pM classification between patients in the IL-36α low and high expression groups (P ＜ 0.05).The 5-year overall and tumorfree survival rates of patients were 79.3％ and 77.2％ in IL-36α low expression group,and 66.3％ and 65.3％ in IL-36α high expression group (P ＜0.05).COX proportional hazard regression model revealed that high expression of IL-36α was associated with short overall survival time and tumor-free survival time of colorectal cancer patients (P ＜ 0.05).Multivariate analysis identified IL-36α expression in colorectal cancer as an independent prognosticator (P ＜ 0.05).Conclusions High expression of IL-36α was correlated with tumor differentiation and pM classification of colorectal cancers,and it is an independent predictor of poor survival for patients with colorectal cancer.

The incidence of inflammatory bowel disease in China is rising on a yearly basis, followed by an increased number of patients who require surgery and those who suffer from maneuver postoperative complications. Surgical treatment is important in the management of patients with inflammatory bowel diseases. Management and prevention of postoperative complications is also a key factor to the success of surgical treatment if it is not more important than the surgical procedure itself. In this article, the most recent literatures in this field will be reviewed combined with our own clinical experiences. The types, risk factors, preoperative prevention strategies as well as postoperative management of surgical complications of patients with inflammatory bowel disease will be discussed.
China ; Digestive System Surgical Procedures ; adverse effects ; Humans ; Incidence ; Inflammatory Bowel Diseases ; surgery ; Postoperative Complications ; prevention & control ; therapy ; Risk Factors

The inflammatory bowel disease (IBD) includes Crohn's disease and ulcerative colitis.The incidence of IBD is rising on a yearly basis in China,followed by an increased number of patients who suffer from the complications.Medicines and surgical treatment are the major maneuver in the management of patients with IBD.Recently,mesenehymal stromal cells MSCs were found to exert powerful immunomodulatory effects,which suggest the possibility of an alternative treatment for patients with IBD.In this article,the most recent literatures in this field will be reviewed combining with our own clinical experiences.The functions of MSCs,the pathogenesis of IBD and research situation of MSCs therapy for patients with IBD will be discussed.

Colorectal cancer(CRC)is the most common malignant gastrointestinal tumor.Early screening and intervention are effective measures to reduce its morbidity and mortality.Compared with colonoscopy,non-invasive liquid biopsy has several advantages,such as easier operation,lower cost,fewer complications,and higher compliance,bringing better social benefits.It is the current research hotspot and breakthrough point in colorectal cancer screening technology.Recently,with the development of multi-omics research technology,fecal and peripheral blood genomic,proteomic and microbiomic tests have been proven to be potentially applied in colorectal cancer screening.Several biomarkers for colorectal cancer screening have been discovered,leading to numerous new non-invasive screening methods.In this review,we consolidate the existing techniques for non-invasive early diagnosis of colorectal cancer in combination with national and inter-national literature reports,and discuss their application value to provide a theoretical basis for further research on early colorectal cancer screening.

OBJECTIVETo investigate the expression and clinical significance of G protein-coupled receptor 31 (GPR31) in colorectal cancer tissue.

METHODSCancer tissues and adjacent normal tissues of 321 cases with colorectal cancer confirmed by pathology and undergoing resection in the First Affiliated Hospital of Sun Yat-sen University from January 1996 to December 2008 were collected. The expression of GPR31 was examined by immunohistochemical staining. According to the expression level of GPR31 (A value=0.051), all the patients were divided into low GPR31 expression group and high GPR31 expression group. Clinicopathology and prognosis between the two groups were compared. Risk factors affecting prognosis were investigated.

RESULTSGPR31 expression was significantly higher in colorectal cancer tissues compared to adjacent normal tissues (mean A, 0.063±0.014 vs. 0.045±0.020, P<0.001). A total of 197 cancer tissue samples were defined as low expression and 124 as high expression. Significant difference was observed in the number of patient in pM classification between the two groups (P=0.007). High expression group had obviously higher distant metastasis rate than low expression group [12.1% (15/124) vs. 4.1% (8/197), P=0.007]. The 5-year survival rate and tumor-free survival rate were 84.3% and 82.2% in the low expression group, and both 59.7% in high expression group (all P<0.05). Multivariate analysis revealed elderly, abnormal CEA, lymphatic metastasis, distant metastasis and up-regulated GPR31 expression were independent risk factors of overall survival and disease-free survival in colorectal cancer patients (all P<0.05).

CONCLUSIONSGPR31 expression is significantly up-regulated in colorectal cancer tissues. High GPR31expression indicates poor prognosis of colorectal cancer, and may be used as a predictive marker.

Aged ; Biomarkers, Tumor ; metabolism ; Colorectal Neoplasms ; diagnosis ; metabolism ; Disease-Free Survival ; Humans ; Lymphatic Metastasis ; Prognosis ; Receptors, G-Protein-Coupled ; metabolism ; Risk Factors ; Survival Rate ; Up-Regulation