Journal of gastrointestinal oncology · 2023
RNA-binding protein ENO1 promotes the tumor progression of gastric cancer by binding to and regulating gastric cancer-related genes.
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Wang Na, Qiao Hui, Hao Jianpeng, Deng Chenghui, Zhou Nan, Yang Lei, Zeng Miaomiao, Guan Quanlin
Аннотация
BACKGROUND: This study sought to identify the downstream target genes of enolase 1 (ENO1), clarify the role of ENO1 in gastric cancer (GC), and provide novel insights into the regulatory mechanisms of ENO1 in the occurrence and development of GC.
METHODS: We performed RNA-immunoprecipitation sequencing in MKN-45 cells to study the types and abundance of pre-messenger RNA (mRNA)/mRNA bound by ENO1, the binding sites and motifs, the relationship between ENO1 binding and its regulation of transcription level, and alternative splicing level by combining with RNA-sequencing (RNA-seq) data to further clarify the role of ENO1 in GC.
RESULTS: We found that ENO1 stabilized the expression of SRY-box transcription factor 9 (SOX9), vascular endothelial growth factor A (VEGFA), G protein-coupled receptor class C group 5 member A (GPRC5A), and myeloid cell leukemia-1 (MCL1) by binding to their mRNA, which increased the growth of GC. In addition, ENO1 interacted with some other long non-coding RNAs (lncRNAs) or small-molecule kinases, such as NEAT1, LINC00511, CD44, and pyruvate kinase M2 (PKM2), to regulate their expression to affect cell proliferation, migration, and apoptosis.
CONCLUSIONS: ENO1 may play a role in GC by binding to and regulating GC-related genes. Our findings extend understandings of its mechanism as a clinical therapeutic target.
METHODS: We performed RNA-immunoprecipitation sequencing in MKN-45 cells to study the types and abundance of pre-messenger RNA (mRNA)/mRNA bound by ENO1, the binding sites and motifs, the relationship between ENO1 binding and its regulation of transcription level, and alternative splicing level by combining with RNA-sequencing (RNA-seq) data to further clarify the role of ENO1 in GC.
RESULTS: We found that ENO1 stabilized the expression of SRY-box transcription factor 9 (SOX9), vascular endothelial growth factor A (VEGFA), G protein-coupled receptor class C group 5 member A (GPRC5A), and myeloid cell leukemia-1 (MCL1) by binding to their mRNA, which increased the growth of GC. In addition, ENO1 interacted with some other long non-coding RNAs (lncRNAs) or small-molecule kinases, such as NEAT1, LINC00511, CD44, and pyruvate kinase M2 (PKM2), to regulate their expression to affect cell proliferation, migration, and apoptosis.
CONCLUSIONS: ENO1 may play a role in GC by binding to and regulating GC-related genes. Our findings extend understandings of its mechanism as a clinical therapeutic target.