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SHP2 associates with nuclear localization of STAT3: significance in progression and prognosis of colorectal cancer.

SHP2 associates with nuclear localization of STAT3: significance in progression and prognosis of colorectal cancer.
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Huang Y, Wang J, Cao F, Jiang H, Li A, Li J, Qiu L, Shen H, Chang W, Zhou C, Pan Y, Lu Y,


Huang Y, Wang J, Cao F, Jiang H, Li A, Li J, Qiu L, Shen H, Chang W, Zhou C, Pan Y, Lu Y, (click to view)

Huang Y, Wang J, Cao F, Jiang H, Li A, Li J, Qiu L, Shen H, Chang W, Zhou C, Pan Y, Lu Y,

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Scientific reports 2017 12 147(1) 17597 doi 10.1038/s41598-017-17604-7
Abstract

Tyrosine phosphatase SHP2, encoded by PTPN11, has been implicated in many physiologic and pathologic processes in neoplastic progression. However, controversies are emerging from many studies, indicating SHP2 has a dual role in different types of tumors. We aimed to explore the role of SHP2 in progression and prognosis of colorectal cancer (CRC). SHP2 inhibited CRC cell proliferation and migration, and the phosphorylation of STAT3 was negatively regulated by SHP2 in CRC. SHP2 and nuclear STAT3 were examined in 270 CRC tissues. SHP2 was significantly correlated with nuclear STAT3 (Spearman’s rho = -0.408, P ≤ 0.001). Based on Cox regression analysis, patients with high levels of SHP2 and low levels of nuclear STAT3 had longer disease-specific survival (DSS) (HR, 0.362; 95% CI, 0.165-0.794) and disease-free survival (DFS) (HR, 0.447; 95% CI, 0.227-0.877). Further, low levels of SHP2 and high levels of nuclear STAT3 were independently associated with adverse outcomes in the whole cohort (DFS; HR, 2.353; 95% CI, 1.199-4.619). These results suggest that combination of SHP2 and nuclear STAT3 is a strong prognostic predictor in CRC.

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