LINC00641 hinders the progression of cervical cancer by targeting miR-378a-3p/CPEB3

Yan Zhang1, Rong Yu2, Lei Li1

  • 1Department of Obstetrics, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China.

Abstract

Insights

Long non-coding RNA LINC00641 suppresses cervical cancer (CC) progression by targeting the miR-378a-3p/CPEB3 pathway. This suggests LINC00641 holds therapeutic potential for CC treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Regulation

Background:

  • Long non-coding RNA LINC00641 exhibits anti-tumor properties across various cancers.
  • Its specific role in cervical cancer (CC) remains largely undetermined.

Purpose of the Study:

  • To elucidate the functional role and underlying molecular mechanisms of LINC00641 in cervical cancer.
  • To investigate the potential of LINC00641 as a therapeutic target for CC.

Main Methods:

  • Quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) to assess expression levels of LINC00641, miR-378a-3p, and CPEB3.
  • RNA pull-down and luciferase reporter assays to determine the regulatory interactions between LINC00641 and its downstream targets.
  • In vitro experiments to evaluate the effects of LINC00641 manipulation on CC cell proliferation, migration, invasion, apoptosis, and epithelial-mesenchymal transition (EMT).

Main Results:

  • LINC00641 was significantly under-expressed in CC cell lines.
  • Overexpression of LINC00641 inhibited CC cell proliferation, migration, invasion, and EMT, while increasing apoptosis.
  • LINC00641 directly targeted miR-378a-3p, leading to its downregulation, and miR-378a-3p was upregulated in CC.
  • CPEB3 was identified as a downstream target of miR-378a-3p and was under-expressed in CC; knockdown of CPEB3 partially reversed the effects of LINC00641 overexpression.

Conclusions:

  • LINC00641 suppresses cervical cancer progression by negatively regulating the miR-378a-3p/CPEB3 axis.
  • LINC00641 demonstrates potential as a novel therapeutic agent for cervical cancer treatment.

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