Protein profiling of alpha-fetoprotein producing gastric adenocarcinoma.

Protein profiling of alpha-fetoprotein producing gastric adenocarcinoma.
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产生甲胎蛋白的胃腺癌的蛋白质分析

DOI:
10.18632/oncotarget.8571
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发表时间:
2016-05-10
期刊:
影响因子:
--
通讯作者:
Zhang DY
Zhang DY
中科院分区:
其他
文献类型:
--
作者:
He L;Ye F;Qu L;Wang D;Cui M;Wei C;Xing Y;Lee P;Suo J;Zhang DY

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产甲胎蛋白胃腺癌是胃腺癌的一种罕见亚型。与不产生AFP的胃腺癌相比,我们的研究和其他先前的研究表明,产生AFP的胃腺癌更具侵袭性,更容易发生肝转移。使用蛋白通路阵列,在286个测试蛋白中,发现11个在AFP产生(n=32)和AFP非产生(n=45)胃腺癌组织之间差异表达。此外,XIAP和IGF-Irβ在胃腺癌组织中的高表达是AFP阳性胃腺癌患者预后不良的独立因素。基于XIAP和IGF-Irβ表达水平的风险模型可以将AFP产生的胃腺癌患者分为2个亚组,每个亚组都有一组不同的信号通路参与。总之,产生AFP的胃腺癌是一种异质性肿瘤,具有不同的临床结局、生物学行为和潜在的分子改变。
Alpha-fetoprotein (AFP) producing gastric adenocarcinoma is considered as a rare subtype of gastric adenocarcinoma. Compared with AFP non-producing gastric adenocarcinoma, our study and other previous studies showed that AFP producing gastric adenocarcinoma is more aggressive and prone to liver metastasis. Using the Protein Pathway Array, 11 of out of 286 proteins tested were found to be differentially expressed between AFP producing (n=32) and AFP non-producing (n=45) gastric adenocarcinoma tissues. In addition, the high level expression of XIAP and IGF-Irβ in gastric adenocarcinoma tissues was independent factors for poor prognosis in AFP producing gastric adenocarcinoma patients. A risk model based on the XIAP and IGF-Irβ expression levels can separate AFP producing gastric adenocarcinoma patients into 2 subgroups and each subgroup had a distinct set of signaling pathways involved. In conclusion, AFP producing gastric adenocarcinoma is a heterogeneous cancer with different clinical outcomes, biological behaviors and underlying molecular alterations.
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