Biological roles of astrocyte elevated gene-1(AEG-1):AEG-1,also known as metadherin,was originally identified as a human immunodeficiency virus-1-and tumor necrosis factor-alpha-inducible gene in human fetal astrocytes.The increase in AEG-1 expression is a well-established and important oncogenic event in various types of human cancer,and its upregulation triggers evasion of cellular apoptosis,metastasis,and invasion in cancer(Emdad at al.,2016;Dhiman et al.,2019).AEG-1 can promote tumor progression via multiple phosphoinositide 3-kinase(PI3K)/protein kinase B(Akt)pathways,contributing to an invasive phenotype and angiogenesis(Emdad at al.,2016;Dhiman et al.,2019).In addition,there is evidence for a functional link between AEG-1 and pro-survival mechanisms in various cancers(Dhiman et al.,2019),suggesting that AEG-1 is a key molecule for oncogenic events in cancer.
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