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Related Experiment Video

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MiR-200a-5p Is a Potential Prognostic Marker for Lung Adenocarcinoma: Based on Transcriptomics, Bioinformatics, and

Jiye Liu1,2,3, Jiachun Li4, Yu Liu5

  • 1Central Laboratory, Teaching Base of Huludao Central Hospital Affiliated to Jinzhou Medical University, 125000 Huludao, Liaoning, China.

Folia Biologica
|April 14, 2026
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Summary

MicroRNA 200a-5p (miR-200a-5p) is elevated in lung adenocarcinoma, promoting tumor growth and spread by activating the Wnt pathway. This suggests miR-200a-5p is a potential therapeutic target and biomarker.

Keywords:
bioinformaticslung adenocarcinomamiRNAprognostic markerproliferationtranscriptomics

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Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Lung adenocarcinoma is a leading cause of cancer mortality globally.
  • MicroRNAs (miRNAs) play crucial roles in cancer development, with miR-200a-5p implicated in lung adenocarcinoma.
  • The precise function and regulatory mechanisms of miR-200a-5p in this cancer remain largely undetermined.

Purpose of the Study:

  • To investigate the role and underlying molecular mechanisms of miR-200a-5p in lung adenocarcinoma progression.
  • To explore miR-200a-5p as a potential prognostic biomarker and therapeutic target for lung adenocarcinoma.

Main Methods:

  • Transcriptome sequencing of 32 clinical lung adenocarcinoma and normal tissue pairs.
  • Validation of miR-200a-5p expression using bioinformatics and RT-qPCR in tissues and cell lines (H1975, A549).
  • In vitro functional assays (proliferation, migration, invasion, apoptosis) and in vivo tumor xenograft models.

Main Results:

  • miR-200a-5p was significantly upregulated in lung adenocarcinoma tissues and cells, correlating with poor prognosis.
  • Overexpression of miR-200a-5p promoted proliferation, migration, and invasion while inhibiting apoptosis in vitro.
  • In vivo studies demonstrated that miR-200a-5p promotes tumor growth by activating the Wnt signaling pathway.

Conclusions:

  • miR-200a-5p functions as an oncogenic factor in lung adenocarcinoma.
  • The oncogenic role of miR-200a-5p is mediated through the activation of the Wnt pathway.
  • miR-200a-5p holds promise as a novel therapeutic target and prognostic biomarker for lung adenocarcinoma.