Scinderin promotes the invasion and metastasis of gastric cancer cells and predicts the outcome of patients.

Scinderin promotes the invasion and metastasis of gastric cancer cells and predicts the outcome of patients.
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Scinderin促进胃癌细胞的侵袭和转移并预测患者的预后

DOI:
10.1016/j.canlet.2016.03.035
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发表时间:
2016-06-28
期刊:
影响因子:
9.7
通讯作者:
Qian F
Qian F
中科院分区:
医学1区
文献类型:
--
作者:
Liu JJ;Liu JY;Chen J;Wu YX;Yan P;Ji CD;Wang YX;Xiang DF;Zhang X;Zhang P;Cui YH;Wang JM;Bian XW;Qian F

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侵袭和转移是胃癌的主要恶性特征,但其分子机制尚不清楚。近年来的研究表明,一种调节肌动蛋白细胞骨架的肌动蛋白切割和加帽蛋白--β-肌动蛋白(SCIN)参与某些癌细胞的增殖和迁移。因此,本研究旨在探讨SCIN在人胃癌细胞侵袭和转移中的潜在作用,并评估其对胃癌患者的预后价值。我们发现胃癌中SCIN的高水平表达与患者的总体生存率相关。SCIN基因的沉默能有效抑制人胃癌细胞的体外迁移和侵袭能力以及体内的致瘤性和转移性。此外,SCIN的敲低显着抑制丝状伪足的形成,减少GC细胞的迁移和Cdc 42的表达,一个重要的调节丝状伪足的GC细胞。这些结果表明,SCIN可能是一种新的预后标志物和潜在的治疗靶点在人类GC。
Invasion and metastasis are major malignant characteristics of human gastric cancer (GC), but the underlying molecular mechanisms are poorly understood. Recent studies have shown that scinderin (SCIN), an actin severing and capping protein that regulates the actin cytoskeleton, is involved in the proliferation and migration of certain cancer cells. Accordingly, this study aimed to investigate the potential role of SCIN in the invasion and metastasis of human GC cells and to evaluate its prognostic value for GC patients. We found that high levels of SCIN expression in GC tumors were correlated with poor overall survival of patients. Silencing of SCIN effectively suppressed the migratory and invasive capabilities of human GC cells in vitro and tumorigenicity and metastasis in vivo. Furthermore, knockdown of SCIN markedly inhibited the formation of filopodia, decreasing GC cell migration and the expression of Cdc42, an important regulator of filopodia by GC cells. These findings suggest that SCIN may be a novel prognostic marker and a potential therapeutic target in human GC.
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