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Cell Cycle Regulation by Berberine in Human Melanoma A375 Cells

Min Ren1, Lihui Yang1, Dongxia Li2

  • 1Department of Dermatology, Affiliated Hospital of Inner Mongolia Medical University, Huhhot, Inner Mongolia, P.R. China.

Bulletin of Experimental Biology and Medicine
|September 11, 2020
PubMed

Insights

Berberine inhibits melanoma A375 cell growth and migration while promoting apoptosis. It upregulates cell cycle miRNAs, downregulating target genes like CDK1 and cyclins, thus blocking cell cycle progression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Melanoma is an aggressive skin cancer with limited treatment options.
  • Berberine, a natural compound, shows potential anti-cancer properties.
  • Understanding berberine's mechanism in melanoma is crucial for therapeutic development.

Purpose of the Study:

  • To investigate the effects of berberine on human melanoma A375 cells.
  • To analyze berberine's impact on cell proliferation, apoptosis, migration, and cell cycle.
  • To elucidate the role of specific miRNAs and their target genes in berberine's action.

Main Methods:

  • MTT assay for proliferation, trypan blue staining for apoptosis, scratch test for migration.
  • Flow cytometry for cell cycle analysis.
  • qRT-PCR and Western blotting to assess miRNA, mRNA, and protein expression of cell cycle regulators (CDK1, CDK2, cyclins D1/A).

Main Results:

  • Berberine inhibited A375 cell proliferation and migration in a dose- and time-dependent manner.
  • Berberine significantly induced apoptosis and caused cell cycle arrest at S and G2/M phases.
  • Berberine increased expression of miRNA-582-5p and miRNA-188-5p, decreasing target genes (CDK1, CDK2, cyclins D1/A) and proteins.

Conclusions:

  • Berberine effectively suppresses melanoma A375 cell growth and migration.
  • Berberine promotes apoptosis and disrupts cell cycle progression.
  • The mechanism involves upregulation of specific miRNAs, leading to downregulation of key cell cycle genes and proteins.
Keywords:
A375 cellsberberinecell cycle-related proteinsmelanomamiRNA

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