Related Experiment Video

Updated: Feb 1, 2026

A Portal Vein Injection Model to Study Liver Metastasis of Breast Cancer
07:35

A Portal Vein Injection Model to Study Liver Metastasis of Breast Cancer

Published on: December 26, 2016

42.8K

MicroRNA-34a inhibits metastasis in liver cancer cells

Wei Wei1, Huihuan Tang1, Ling Tang2

  • 1Department of General Surgery, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China.

Oncology Letters
|December 15, 2018
PubMed

Insights

MicroRNAs, specifically miR-34a, can suppress liver cancer metastasis. This study found that increasing miR-34a levels in liver cancer cells significantly reduced their invasion and metastasis capabilities.

Area of Science:

  • Molecular Biology
  • Oncology
  • Gene Regulation

Background:

  • MicroRNAs (miRNAs) regulate gene expression by targeting messenger RNAs (mRNAs).
  • miR-34a is recognized as a tumor suppressor, regulating cell cycle and tumorigenicity.
  • Low miR-34a expression is commonly observed in tumors, suggesting a role in cancer progression.

Purpose of the Study:

  • To investigate the role of miR-34a in the metastasis of liver cancer cells.
  • To determine if modulating miR-34a expression affects cancer cell invasion.

Main Methods:

  • Stable liver cancer cell lines were engineered for miR-34a transfection.
  • Cell invasion assays were conducted to quantify metastatic potential.
  • Statistical analysis was performed to compare experimental and control groups.

Main Results:

  • Transfection with miR-34a led to a significant inhibition of cell invasion compared to control cells (P<0.05).
  • The findings indicate that miR-34a actively suppresses the metastatic behavior of liver cancer cells.

Conclusions:

  • miR-34a demonstrates a significant inhibitory effect on liver cancer cell metastasis.
  • Upregulation of miR-34a represents a potential therapeutic strategy for reducing liver cancer spread.
Keywords:
metastasismicroRNA-34atumor suppressor

More Related Videos

Portal Vein Injection of Colorectal Cancer Organoids to Study the Liver Metastasis Stroma07:59

Portal Vein Injection of Colorectal Cancer Organoids to Study the Liver Metastasis Stroma

Published on: September 3, 2021

7.1K
In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice07:02

In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice

Published on: August 23, 2019

7.8K

Related Concept Videos

MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
24.2K
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
4.0K
Feedback Inhibition00:46

Feedback Inhibition

Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
57.1K
Metastasis02:30

Metastasis

Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
6.6K
Enzyme Inhibition01:30

Enzyme Inhibition

Inhibitors are molecules that reduce enzyme activity by binding to the enzyme. In a normally functioning cell, enzymes are regulated by a variety of inhibitors. Drugs and other toxins can also inhibit enzymes. Some inhibitors bind to the enzyme’s active site, while others inhibit enzymatic activity by binding to other sites on the protein structure.
92.4K
Inhibition of Cdk Activity02:34

Inhibition of Cdk Activity

The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
6.0K