期刊
INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY
卷 136, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biocel.2021.106015
关键词
linc01305; IGF2BP2; IGF2BP3; HTR3A; mRNA stability; ESCC
资金
- Guangdong Natural Science Foundation [2018A0303130177, 2018A030307050]
- National Natural Science Foundation of China [81872334]
The research discovers a novel mechanism where cytoplasmic linc01305 stabilizes HTR3A mRNA through interaction with IGF2BP2 and IGF2BP3, thereby promoting metastasis and proliferation of esophageal squamous cell carcinoma (ESCC).
Evidence shows that long noncoding RNAs (lncRNAs) modulate mRNAs of multiple genes by post-transcriptional regulation. However, in esophageal squamous cell carcinoma, lncRNAs involvement in post-transcriptional regulation of mRNAs have been rarely reported. In this study, we investigated a novel mechanism of linc01305 promoting metastasis and proliferation of ESCC. The results for real-time quantitative reverse transcription PCR (qRT-PCR) and fluorescence in situ hybridization showed that linc01305 was highly expressed and predominantly located in cytoplasm of human esophageal cancer cells. Transwell and colony formation assays confirmed that linc01305 promoted migration and proliferation of esophageal cancer cells. RNA-seq, linc01305 pulldown, mass spectrometry, RNA immunoprecipitation and mRNA stability assays demonstrated that linc01305 stabilized mRNA of target gene HTR3A through interacting with IGF2BP2 and IGF2BP3. Taken together, our data unveils a novel mechanism in which cytoplasmic linc01305 stabilizes HTR3A mRNA through interacting with IGF2BP2 and IGF2BP3 and thereby promotes metastasis and proliferation of ESCC.
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