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LINC00973/DTX3L Axis Promotes Non-Small Cell Lung Cancer Progression and Serves as a Therapeutic Target.

Yanke Chen1,2, Yu Qian1, Jiayuan Shi1

  • 1Department of Laboratory Medicine, School of Medicine Jiangsu University Zhenjiang China.

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Long non-coding RNA LINC00973 drives non-small cell lung cancer (NSCLC) progression by stabilizing DTX3L and activating AKT signaling. LINC00973 is a potential therapeutic target for NSCLC treatment.

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Area of Science:

  • Oncology
  • Molecular Biology
  • RNA Biology

Background:

  • Long non-coding RNAs (lncRNAs) are crucial regulators in cancer biology.
  • The roles of many lncRNAs in non-small cell lung cancer (NSCLC) are not fully understood.
  • Identifying novel lncRNAs and their functions is vital for cancer therapy.

Purpose of the Study:

  • To investigate the role of LINC00973 in NSCLC.
  • To explore the potential of LINC00973 as a therapeutic target in NSCLC.

Main Methods:

  • High-throughput sequencing of NSCLC tissues and adjacent non-tumorous samples.
  • In vitro functional assays (cell proliferation, migration, invasion, apoptosis).
  • In vivo studies in mouse models and exosome-mediated siRNA delivery.

Main Results:

  • LINC00973 was significantly upregulated in NSCLC tumors and associated with poor prognosis.
  • LINC00973 knockdown inhibited NSCLC cell growth and metastasis; overexpression had opposite effects.
  • LINC00973 stabilizes DTX3L, activating the AKT pathway, and exosome-mediated siRNA delivery suppressed tumor growth.

Conclusions:

  • LINC00973 acts as an oncogenic lncRNA in NSCLC by promoting tumor progression.
  • LINC00973 is a promising therapeutic target for NSCLC treatment.
  • Exosome-mediated delivery of LINC00973-targeting siRNA shows therapeutic potential.