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长链非编码 RNA ZNF667-AS1(NR_036521.1)通过调节 ANK2/JAK2 的表达抑制结直肠癌细胞的进展。

lncRNA ZNF667-AS1 (NR_036521.1) inhibits the progression of colorectal cancer via regulating ANK2/JAK2 expression.

机构信息

Department of General Surgery, Wujin Affiliated Hospital of Jiangsu University and Wujin Clinical College of Xuzhou Medical University, Changzhou, China.

The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Naval Medical University, Shanghai, China.

出版信息

J Cell Physiol. 2021 Mar;236(3):2178-2193. doi: 10.1002/jcp.30004. Epub 2020 Aug 27.

Abstract

Long noncoding RNAs (lncRNAs) participate in many biological processes by affecting gene expression at the posttranscriptional level. lncRNAs are dysregulated in colorectal cancer (CRC) and this dysregulation is closely related to tumorigenesis, metastasis, and prognosis. Although many lncRNAs have been identified in CRC, the relation between ZNF667 antisense RNA 1 (head to head; ZNF667-AS1, accession: NR_036521.1) and CRC remains unclear. In this study, a total of 2,218 differentially expressed genes and 428 differentially expressed lncRNAs were identified between tumor and pericarcinous tissues. They were mainly enriched in cancer pathways, chemokine signaling, phosphoinositide 3-kinase-protein kinase B signaling pathway, and others. Key lncRNAs, including ZNF667-AS1, and their corresponding genes, such as ankyrin 2 (ANK2), were downregulated in CRC tumor tissues. In addition, downregulated ZNF667-AS1 (NR_036521.1) expression is associated with poor prognosis and disease progression. Overexpression of ZNF667-AS1 (NR_036521.1) inhibited the proliferation, migration, and invasion of VOLO cells both in vitro and in vivo. Moreover, Janus kinase 2 (JAK2) and ANK2 were significantly down- and upregulated in the overexpressed ZNF667-AS1 VOLO cells compared to those in the negative-control group. Knockdown of ANK2 or overexpression of JAK2 significantly counteracted the inhibitory effects of overexpression of ZNF667-AS1 on LOVO cell proliferation and migration. Taken together, it is indicated in our research that ZNF667-AS1 interaction with ANK2/JAK2 maybe important in CRC progression. Overexpression of ZNF667-AS1 could inhibit the proliferation, migration, and invasion of CRC cells, which may be related with the high ANK2 and low JAK2 levels.

摘要

长链非编码 RNA(lncRNA)通过影响转录后水平的基因表达参与许多生物学过程。lncRNA 在结直肠癌(CRC)中失调,这种失调与肿瘤发生、转移和预后密切相关。虽然已经在 CRC 中鉴定出许多 lncRNA,但 ZNF667 反义 RNA 1(头对头;ZNF667-AS1,注册号:NR_036521.1)与 CRC 的关系仍不清楚。在这项研究中,在肿瘤和癌旁组织之间鉴定出了 2218 个差异表达基因和 428 个差异表达 lncRNA。它们主要富集在癌症途径、趋化因子信号、磷酸肌醇 3-激酶-蛋白激酶 B 信号通路等途径中。关键的 lncRNA,包括 ZNF667-AS1 及其对应的基因,如锚蛋白 2(ANK2),在 CRC 肿瘤组织中下调。此外,下调的 ZNF667-AS1(NR_036521.1)表达与不良预后和疾病进展相关。ZNF667-AS1(NR_036521.1)的过表达在体外和体内均抑制 VOLO 细胞的增殖、迁移和侵袭。此外,在过表达 ZNF667-AS1 的 VOLO 细胞中,Janus 激酶 2(JAK2)和 ANK2 的表达明显下调和上调,与阴性对照组相比。ANK2 的敲低或 JAK2 的过表达显著抵消了过表达 ZNF667-AS1 对 LOVO 细胞增殖和迁移的抑制作用。综上所述,我们的研究表明,ZNF667-AS1 与 ANK2/JAK2 的相互作用可能在 CRC 进展中很重要。ZNF667-AS1 的过表达可抑制 CRC 细胞的增殖、迁移和侵袭,这可能与高 ANK2 和低 JAK2 水平有关。

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