Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Key Lab of Glycoconjugate Research, Ministry of Public Health, Shanghai 200032, China.
Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China.
Biomed Res Int. 2021 Jul 19;2021:4873678. doi: 10.1155/2021/4873678. eCollection 2021.
LIHC (liver hepatocellular carcinoma) mostly occurs in patients with chronic liver disease. It is primarily induced by a vicious cycle of liver injury, inflammation, and regeneration that usually last for decades. The G protein nucleolar 2 (GNL2), as a protein-encoding gene, is also known as NGP1, Nog2, Nug2, Ngp-1, and HUMAUANTIG. Few reports are shown towards the specific biological function of GNL2. Meanwhile, it is still unclear whether it is related to the pathogenesis of carcinoma up to date. Here, our study attempts to validate the role and function of GNL2 in LIHC via multiple databases and functional assays. After analysis of gene expression profile from The Cancer Genome Atlas (TCGA) database, GNL2 was largely heightened in LIHC, and its overexpression displayed a close relationship with different stages and poor prognosis of carcinoma. After enrichment analysis, the data revealed that the genes coexpressed with GNL2 probably participated in ribosome biosynthesis which was essential for unrestricted growth of carcinoma. Cell functional assays presented that GNL2 knockdown by siRNA in LIHC cells MHCC97-H and SMCC-7721 greatly reduced cell proliferation, migration, and invasion ability. All in all, these findings capitulated that GNL2 could be a promising treatment target and prognosis biomarker for LIHC.
LIHC(肝癌)主要发生在慢性肝病患者中。它主要是由肝损伤、炎症和再生的恶性循环引起的,通常持续数十年。G 蛋白核仁 2(GNL2)作为一种编码蛋白的基因,也被称为 NGP1、Nog2、Nug2、Ngp-1 和 HUMAUANTIG。目前,关于 GNL2 的具体生物学功能的报道很少。同时,到目前为止,还不清楚它是否与癌的发病机制有关。在这里,我们通过多个数据库和功能测定试图验证 GNL2 在 LIHC 中的作用和功能。通过对癌症基因组图谱(TCGA)数据库中的基因表达谱进行分析,发现 GNL2 在 LIHC 中大量升高,其过表达与癌的不同阶段和不良预后密切相关。富集分析后,数据显示与 GNL2 共表达的基因可能参与核糖体生物合成,这对癌细胞的无限制生长是必不可少的。细胞功能测定表明,在 LIHC 细胞 MHCC97-H 和 SMCC-7721 中用 siRNA 敲低 GNL2 可显著降低细胞增殖、迁移和侵袭能力。总之,这些发现表明 GNL2 可能是 LIHC 的一个有前途的治疗靶点和预后生物标志物。