MyoD1 suppresses cell migration and invasion by inhibiting FUT4 transcription in human gastric cancer cells.

MyoD1 suppresses cell migration and invasion by inhibiting FUT4 transcription in human gastric cancer cells.
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MyoD1通过抑制人胃癌细胞中的FUT4转录来抑制细胞迁移和侵袭

DOI:
10.1038/s41417-019-0153-3
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发表时间:
2020-11
影响因子:
6.4
通讯作者:
Huang C
Huang C
中科院分区:
医学3区
文献类型:
--
作者:
Wu F;Qin Y;Jiang Q;Zhang J;Li F;Li Q;Wang X;Gao Y;Miao J;Guo C;Yang Y;Ni L;Liu L;Zhang S;Huang C

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肌源性分化 1 (MyoD1) 是一种促进肌肉特异性基因表达的转录因子。 MyoD1 在胃癌 (GC) 组织和细胞中的表达水平显着降低,并诱导 GC 细胞凋亡。然而,MyoD1 在 GC 细胞迁移和基因表达中的功能尚未有记录。我们发现,MyoD1 的敲低促进了 GC 细胞的迁移和侵袭,而 MyoD1 的过表达则抑制了迁移和侵袭。我们进行了染色质免疫沉淀 (ChIP) 测序来鉴定 MKN-45 细胞中的 MyoD1 靶基因。 57 个基因转录起始位点的 2 kb 上游区域 (Up2k) 可能与 MyoD1 结合。其中六个基因在信号通路中发挥作用,例如鞘糖脂生物合成(乳糖和新乳糖系列)的合成。 MyoD1 通过直接与 FUT4F3 结合来抑制岩藻糖基转移酶 IV (FUT4) 的转录;这一发现通过 ChIP 定量 PCR 和荧光素酶报告基因检测得到了验证。 Ulex europaeus 凝集素 I(可结合 Fucα1-2Galβ1-4GlcNAc)和 Lewis 抗原与过表达 MyoD1 的细胞质膜的结合减少。 FUT4 的敲低通过抑制 GC 细胞迁移和侵袭来模拟 MyoD1 过表达;这一结果表明MyoD1通过抑制FUT4/基质金属肽酶信号通路来抑制细胞迁移和侵袭。总之,本研究证明MyoD1通过直接结合FUT4Up2k中的F3区域并抑制FUT4/II型Lewis抗原表达来抑制GC细胞的迁移和侵袭。
Myogenic differentiation 1 (MyoD1) is a transcription factor that promotes expression of muscle-specific genes. MyoD1 is expressed at significantly lower levels in gastric cancer (GC) tissues and cells, and it induces apoptosis in GC cells. However, functions for MyoD1 in GC cell migration and gene expression have not been documented. We show that knockdown of MyoD1 promoted migration and invasion of GC cells, whereas MyoD1 overexpression suppressed migration and invasion. We performed chromatin immunoprecipitation (ChIP)-sequencing to identify MyoD1 target genes in MKN-45 cells. The 2-kb upstream regions (Up2k) of the transcription start sites of 57 genes were probably bound by MyoD1. Six of these genes function in signaling pathways such as synthesis of glycosphingolipid biosynthesis—lacto and neolacto series. MyoD1 inhibited transcription of fucosyltransferase IV (FUT4) by binding directly to theFUT4F3; this finding was validated by ChIP-quantitative PCR and a luciferase reporter assay. Ulex europaeus agglutinin I, which binds Fucα1-2Galβ1-4GlcNAc, and Lewis antigens showed decreased binding to the plasma membrane of cells that overexpressed MyoD1. Knockdown of FUT4 mimicked MyoD1 overexpression by suppressing GC cell migration and invasion; this result implied that MyoD1 suppressed cell migration and invasion via inhibiting the FUT4/matrix metallopeptidase signaling pathway. In summary, this study demonstrated that MyoD1 suppresses migration and invasion of GC cells by directly binding to the F3 region in theFUT4Up2k and inhibiting FUT4/type II Lewis antigen expression.
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