MYEOV functions as an amplified competing endogenous RNA in promoting metastasis by activating TGF-β pathway in NSCLC

Area of Science:

• Oncology
• Molecular Biology
• RNA Biology

Background:

• Non-small cell lung cancer (NSCLC) is a leading cause of cancer mortality globally.
• Metastasis is the primary driver of poor clinical outcomes in NSCLC patients.
• Understanding the molecular mechanisms of NSCLC cell dissemination is crucial for developing effective treatments.

Purpose of the Study:

• To identify novel molecular regulators involved in NSCLC invasion and metastasis.
• To elucidate the mechanism by which the MYEOV transcript influences NSCLC progression.
• To explore the potential of the MYEOV transcript as a therapeutic target in NSCLC.

Main Methods:

• Identification and characterization of the MYEOV transcript as a competing endogenous RNA (ceRNA).
• Analysis of MYEOV transcript expression levels in NSCLC tissues and correlation with patient prognosis.
• Investigation of the functional role of MYEOV ceRNA in NSCLC cell invasion and metastasis.
• Experimental validation of MYEOV ceRNA interaction with miR-30c-2-3p and its downstream targets (TGFBR2, USP15).
• Assessment of TGF-β signaling pathway activation in response to MYEOV ceRNA activity.

Main Results:

• The MYEOV transcript was identified as a significantly upregulated ceRNA in NSCLC, associated with poor prognosis.
• MYEOV ceRNA promotes NSCLC cell invasion and metastasis independently of its protein-coding function.
• MYEOV ceRNA directly binds to miR-30c-2-3p, inhibiting its interaction with TGFBR2 and USP15 mRNAs.
• This leads to the constitutive activation of the TGF-β signaling pathway, driving tumor progression in NSCLC.

Conclusions:

• The MYEOV transcript functions as a pro-metastatic ceRNA in NSCLC by regulating the miR-30c-2-3p/TGF-β signaling axis.
• This study uncovers a novel regulatory mechanism contributing to NSCLC progression.
• The MYEOV transcript represents a potential therapeutic target for inhibiting NSCLC metastasis.