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Naa10基因与肿瘤相关性的研究进展

Progress of Acetyltransferase Gene Naa10 in Cancer

  • 摘要: N-末端α位乙酰基转移酶基因10(Naa10)广泛存在于真核生物细胞中,其编码的Naa10p是NatA复合物的催化亚基。Naa10p修饰新生蛋白质N末α位氨基酸残基乙酰化,进而通过介导mTOR、Ca2+/MLCK、DNMT1、PGK1、PIX-蛋白等信号通路调控蛋白降解、细胞凋亡、增殖、迁移、浸润、血管生成等生物学过程。根据乙酰化底物的不同,Naa10p还在细胞凋亡的调控中起双重作用。研究发现Naa10p在肝癌、结直肠癌、乳腺癌、肺癌、前列腺癌等多种癌组织中过表达,而在癌旁组织中不表达或低表达,因肿瘤差异其预后意义不同。因此,Naa10可作为部分肿瘤诊断和预后的新型潜在生物标志物及治疗靶点。

     

    Abstract: N-α-terminal acetyltransferase gene 10 (Naa10) is extensively expressed in eukaryotic cells, and its encoded Naa10p is the catalytic subunit of the NatA complex. Naa10p modifies the acetylation of aminophenol residues at the N-terminal-α of nascent protein; it regulates the biological processes such as protein degradation, apoptosis, cell proliferation, cell migration, infiltration and angiogenesis by mediating mTOR, Ca2+/MLCK, DNMT1, PGK1 and PIX-protein pathways. Depending on the acetylated substrate, Naa10p also plays a dual role in the regulation of apoptosis. In the present studies, Naa10p is over-expressed in various cancer tissues such as liver cancer, colorectal cancer, breast cancer, lung cancer and prostate cancer, etc.; contrarily, low or non-expressed in paracancerous tissues. It correlates to diverse prognosis of different cancers. Therefore, it could be considered as a novel potential biomarker and therapeutic target for the diagnosis and prognosis of some cancers.

     

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