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Related Experiment Video

Updated: May 23, 2025

In Vitro Cultivation Techniques for Modeling Liver Organogenesis, Building Assembloids, and Designing Synthetic Tissues using Human Cell Lines
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In Vitro Cultivation Techniques for Modeling Liver Organogenesis, Building Assembloids, and Designing Synthetic Tissues using Human Cell Lines

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Exosomatic miR-1246 Promotes Hepatocellular Carcinoma Progression via FSTL5 and ERK/p38 MAPK Pathway.

Wen-Ju Chen1, Ying-Jie Dai1, Wan-Hong Gu1

  • 1Department of Clinical Laboratory Medicine, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China.

Journal of Biochemical and Molecular Toxicology
|March 11, 2025
PubMed
Summary
This summary is machine-generated.

Tumor-derived exosome microRNA-1246 (miR-1246) promotes hepatocellular carcinoma (HCC) cell invasion and migration. Inhibiting exosome miR-1246 with a targeted therapy may offer a new strategy for HCC treatment.

Keywords:
ERK/p38 MAPK signalingFSTL5cell proliferationepithelial‐mesenchymal transition (EMT)exosomehepatocellular carcinomamiR‐1246tumor invasion and migration

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Induction and Analysis of Epithelial to Mesenchymal Transition
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Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Hepatocellular carcinoma (HCC) is a prevalent malignancy with limited targeted therapies.
  • The role of microRNA-1246 (miR-1246) in HCC, particularly within exosomes, requires further elucidation.
  • Understanding exosome-mediated miR-1246 regulation is crucial for developing novel HCC treatments.

Purpose of the Study:

  • To investigate the regulatory role of exosomal microRNA-1246 (miR-1246) in hepatocellular carcinoma (HCC) cell invasion, migration, proliferation, and epithelial-mesenchymal transition (EMT).
  • To explore the underlying molecular mechanisms involving FSTL5 and ERK/p38 MAPK signaling pathways.

Main Methods:

  • Characterization of exosomes from HepG2 cells using Western blotting, nanoparticle tracking analysis, and transmission electron microscopy.
  • Quantification of miR-1246 levels via RT-qPCR and assessment of its functional impact after inhibition.
  • Evaluation of HCC cell migration, invasion, proliferation, and EMT following treatment with miR-1246 inhibitor-loaded exosomes.

Main Results:

  • Elevated miR-1246 levels were observed in HCC tissues and were more concentrated in exosomes derived from HepG2 cells compared to the cells themselves.
  • HCC-derived exosomes significantly promoted cancer cell invasion, migration, proliferation, and EMT.
  • Inhibition of exosomal miR-1246 effectively suppressed these oncogenic processes, implicating miR-1246 as a key driver.

Conclusions:

  • Tumor-derived exosomal miR-1246 actively promotes HCC cell invasion, EMT, and migration.
  • The mechanism involves targeting FSTL5 and modulating the ERK/p38 MAPK signaling pathway.
  • Exosomal miR-1246 represents a potential therapeutic target for hepatocellular carcinoma.