Research progress of the association of STIL with malignancies and its potential mechanism / 国际外科学杂志

The hyperamplification in centrosomes give rise to a series of biochemical events including formation of multipolar spindle, abnormal segregation of chromosome and aneuploid, promoting the performance of chromosome instability, which is the main pathogenesis of multiple human malignancies.STIL participates in the formation of centrioles, activates CDK1/CyclinB1 complex and promotes mitotic entry.Moreover, it regulated expression of related downstream genes through Sonic Hedgehog signal pathway.Thus, STIL correlates with gastric and pancreatic carcinogenesis and progression.We aim to review the structure and function of STIL, association with malignancies and its potential mechanism.

Effect of Wild Type p53 Gene on Inhibiting the Centrosome Hyperamplification in Bladder Cancer Cell Line / 中国医科大学学报

Objective To study the effect of wild type p53 gene on centrosome hyperamplification in bladder cancer cells.Methods A wild type p53 gene recombinant adenovirus vector AdCMVp53 was constructed,and then trangfected into the human bladder cancer cell line T24.The cells were stained with the monoclonal antibody against pericentrin by indirect immunofluorescence method.The change of centrosome hyperamplification was observed under the fluorescence microspcope.Results Introduction of wild type p53 could suppress the centrosome amplification of T24 cell line.Conclusion p53 might play an important role in the regulation of centrosome hyperamplification.The loss of p53 might be one of the mechanisms involved in chromosome instability and contribute to the genesis and development of the bladder carcinoma.

The Experimental Study on the relation of Centrosome Hyperamplification and P53 genetic mutation in Bladder Cancer / 重庆医科大学学报

Objective:To explore the relation of the abnormal condition of centrosome and p53 genetic mutation of bladder cancer cells,its effect on the onset and progress of the transitional cell carcinoma of bladder because of p53 genetic mutation. Methods: 76 transitional cell carcinoma of bladder were examined.The centrosome was stained by indirect immunofluorescence methods,and the primary antibody was monoclonal antibody against pericentrin.The p53 was stained by SP immunohistochemical methods and the primary antibody was monoclonal antibody against p53.Results: Through statistical analysis,detection of CH or p53 expression was useful in providing prognostic information in bladder cancer. There existed a positive correlated(r=0.707,P