Expression of MYSM1 is associated with tumor progression in colorectal cancerReport as inadecuate




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Colorectal cancer, the third most common cancer in both men and women, has gradually increased in recent years. MYSM1has been investigated as a regulator of hematopoiesis and lymphocyte development in human. It has been reported that some tumor-related genes were modulated by MYSM1. However, its exact role in cancer development remains unclear. Herein, we aimed to examine the expression level of MYSM1 in tumor tissues and its correlation with clinicopathology and survivals of patients with colorectal cancer CRC.MYSM1expressions in tumor specimens resected from 123 CRC patients were detected by immunochemistry and Western blot analysis. The results showed that MYSM1 was significantly highly expressed in carcinoma tissues compared with adjacent normal mucosa tissues P<0.05. Correlation analyses by Pearson’s chi-square test demonstrated that MYSM1 in tumors was positively correlated with tumor status pathological assessment of the primary tumor pT, P<0.001, regional lymph nodes pN, P = 0.013, distant metastasis pM, P<0.001 and clinic stage P<0.001; Whereas, MYSM1 was not associated with tumor size of CRC patients and was positively associated with tumor differentiation grade P = 0.015. Patients with positiveMYSM1expression showed poor survival compared with the MYSM1 negative group P<0.001.Simultaneously, multivariate Cox regression analysis indicated thatMYSM1 expression in tumor cells was an independent factor for reduced overall survival in CRC patients P<0.001.Additionally,MYSM1 in CRC SW480 cells was silenced by small interference RNA siRNA technology. Scratch assay and Transwell assay showed that MYSM1 silencing decreased migration and invasion abilities of SW480 cells. These data suggested that expression of MYSM1 was associated with the progression of CRC and might be a potential biomarker for clinical prognosis.



Author: Yongmin Li , Jingwen Li , He Liu, Yanlong Liu , Binbin Cui

Source: http://plos.srce.hr/



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