EEF1D stabilized by SRSF9 promotes colorectal cancer via enhancing the proliferation and metastasis

Author:

Wang Rui1,Lv Chi2,Li Donghao2,Song Yutong2,Yan Zhaopeng2ORCID

Affiliation:

1. Department of Critical Care Medicine Shengjing Hospital of China Medical University Shenyang China

2. Department of General Surgery Shengjing Hospital of China Medical University Shenyang China

Abstract

AbstractColorectal cancer (CRC) is the third most common cancer and causes high mortality worldwide. Although CRC has been studied widely, the molecular mechanism is not completely known. Eukaryotic translation elongation factor 1 delta (EEF1D) participates in the progression of various tumors, however, the effect of EEF1D on CRC remains unclear. Here, we aimed to identify the potential mechanism of EEF1D in CRC. The expression levels of EEF1D were assessed in CRC samples. Functional analysis of EEF1D in CRC was detected in vitro and in vivo. The regulatory mechanism of EEF1D was identified with RNA immunoprecipitation, RNA pull‐down assay, and proteomics analysis. Our findings confirmed that EEF1D was upregulated in human CRC tissues. Functionally, EEF1D overexpression accelerated cell proliferation and metastasis, whereas EEF1D knockdown inhibited cell proliferation and metastasis both in vitro and in vivo CRC models. Furthermore, we showed that EEF1D was upregulated by SRSF9 via binding to 3′UTR of EEF1D mRNA. EEF1D knockdown reversed the malignant phenotype induced by SRSF9 overexpression. These findings demonstrated that EEF1D promotes CRC progression, and EEF1D may be a molecular target against CRC.

Funder

Natural Science Foundation of Liaoning Province

Shengjing Hospital

Publisher

Wiley

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