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Isolation and Flow Cytometric Analysis of Glioma-infiltrating Peripheral Blood Mononuclear Cells

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Galangin increases ERK1/2 phosphorylation to decrease ADAM9 expression and prevents invasion in A172 glioma cells.

Deqiang Lei¹, Fangcheng Zhang¹, Dongxiao Yao¹

¹Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China.

Molecular Medicine Reports

|November 9, 2017

Summary

This summary is machine-generated.

Galangin, a natural flavonoid, effectively inhibits human glioma cancer cell migration and invasion. It achieves this by downregulating ADAM9 and extracellular signal-regulated kinase (Erk)1/2 pathways, suggesting potential as a glioma chemotherapeutic agent.

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Area of Science:

Natural product chemistry
Cancer biology
Molecular oncology

Background:

Galangin is a flavonoid with reported anti-cancer properties.
Glioma is a common type of brain cancer.
Understanding galangin's mechanism in glioma is crucial for therapeutic development.

Purpose of the Study:

To investigate the effects of galangin on A172 human glioma cancer cells.
To elucidate the molecular mechanisms underlying galangin's anti-glioma activity.
To assess galangin's potential as a chemotherapeutic agent for glioma.

Main Methods:

A172 human glioma cells were treated with galangin.
Human proteinase array assay was used to identify target proteins.
Western blotting and RT-qPCR were employed to analyze protein and mRNA expression.
Extracellular signal-regulated kinase (Erk)1/2 pathway was investigated using inhibitors and siRNA.

Main Results:

Galangin inhibited A172 cell migration and invasion at non-toxic doses.
Galangin treatment reduced ADAM9 protein and mRNA expression.
Sustained extracellular signal-regulated kinase (Erk)1/2 activation was observed and linked to ADAM9 inhibition.
Inhibition of Erk1/2 reversed galangin's effect on cell migration and invasion.

Conclusions:

Galangin demonstrates anti-migratory and anti-invasive effects on human glioma cells.
The mechanism involves the downregulation of ADAM9 via the Erk1/2 signaling pathway.
Galangin shows promise as a potential chemotherapeutic agent for glioma treatment.