Dataset Information

CXCL1 Regulated by miR-302e Is Involved in Cell Viability and Motility of Colorectal Cancer via Inhibiting JAK-STAT Signaling Pathway.

ABSTRACT:

Purpose

This study made a systemic description for the CXCL1-dependent regulatory mechanism in colorectal cancer (CRC).

Methods

Bioinformatics methods were applied to obtain target mRNA CXCL1 and corresponding upstream miRNA. qRT-PCR and Western blot were performed to measure the levels of CXCL1 and miR-302e in CRC tissue and cells. Experiments including CCK-8, wound healing assay, Transwell invasion assay, and flow cytometry were conducted to assess cell biological behaviors. Dual-luciferase reporter assay was carried out for verification of the targeting relationship between CXCL1 and miR-302e. The inhibitor AG490 of JAK-STAT signaling pathway was used to identify the functional mechanism of CXCL1/JAK-STAT underlying progression of CRC, and tumor xenograft experiments were performed for further validation.

Results

CXCL1 was highly expressed in CRC tissue and cells, while miR-302e was poorly expressed. Silencing CXCL1 or overexpressing miR-302e could lead to inhibition of cell proliferation, migration, invasion but promotion of cell apoptosis of CRC. Besides, CXCL1 was identified as a direct target of miR-302e, and CXCL1 could reverse the effect of miR-302e on cell proliferation, migration, invasion, and apoptosis. Furthermore, CXCL1 functioned on CRC cell biological behaviors via activation of JAK-STAT signaling pathway.

Conclusion

CXCL1 could be regulated by miR-302e to inactivate JAK-STAT signaling pathway, in turn affecting cell proliferation, migration, invasion, and apoptosis of CRC. Our result provides a potential therapeutic target for CRC treatment.

SUBMITTER: Chen B

PROVIDER: S-EPMC8166233 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Publications

CXCL1 Regulated by miR-302e Is Involved in Cell Viability and Motility of Colorectal Cancer <i>via</i> Inhibiting JAK-STAT Signaling Pathway.

Chen Biyin B Song Li L Nie Xiuzhen X Lin Fangfeng F Yu Zongyang Z Kong Wencui W Qi Xiaoyan X Wang Wenwu W

Frontiers in oncology 20210517

<h4>Purpose</h4>This study made a systemic description for the CXCL1-dependent regulatory mechanism in colorectal cancer (CRC).<h4>Methods</h4>Bioinformatics methods were applied to obtain target mRNA CXCL1 and corresponding upstream miRNA. qRT-PCR and Western blot were performed to measure the levels of CXCL1 and miR-302e in CRC tissue and cells. Experiments including CCK-8, wound healing assay, Transwell invasion assay, and flow cytometry were conducted to assess cell biological behaviors. Dua ...[more]

PMID: 34079750

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