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miRNA patterns in male LUSC patients - the 3-way mirror: Tissue, plasma and exosomes. | LitMetric

AI Article Synopsis

  • * This study focused on three microRNAs (miR-21-5p, miR-155-5p, and miR-181a-5p) in tumor vs normal tissue and their levels in plasma from male patients with lung squamous cell carcinoma (LUSC) compared to healthy individuals.
  • * Findings showed miR-21-5p and miR-155-5p were overexpressed in tumor tissue, while miR-181a-5p was underexpressed; these mi

Article Abstract

Lung cancer remains one of the leading causes of cancer-related deaths worldwide. It is classified into two main histological groups: non-small cell lung cancer (NSCLC) and small cell lung cancer. Improving the outcome of cancer patients could be possible by enhancing the early diagnosis. In the current study, we evaluated the levels of three microRNAs - miR-21-5p, miR-155-5p, and miR-181a-5p in tumor (TT) vs adjacent normal tissue (NT), as well as their expression levels in plasma and extracellular vesicles (EVs) from plasma in lung squamous cell carcinoma (LUSC) male patients vs healthy individuals as means to identify a panel of miRNAs that could serve as novel biomarkers for the diagnosis of LUSC in male patients. Matched paired tissue samples from male LUSC (n=40) patients were used for miRNA expression analysis. MiR-21-5p and miR-155-5p in tumor tissue were overexpressed, while underexpression of miR-181a-5p was observed in LUSC TT vs NT. These results were further validated in the TCGA LUSC dataset, considering 279 male samples. These alterations of miR-21-5p, miR-181a-5p, and miR-155-5p in tumor tissue are also present in plasma and plasma extracellular vesicles in LUSC male patients. In addition, ROC curves were performed to assess the sensitivity and specificity of different combinations of these miRNAs, confirming a high diagnostic accuracy for LUSC of up to 88 % in male subjects. The expression levels in tissue samples and the abundance in plasma and plasma EVs of the three miRNAs combined - miR-21-5p, miR-155-5p and miR-181a-5p - could be considered for further studies on biomarkers for the early detection of LUSC in male subjects.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11002298PMC
http://dx.doi.org/10.1016/j.tranon.2024.101951DOI Listing

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