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KDM4C Activity Modulates Cell Proliferation and Chromosome Segregation in Triple-Negative Breast Cancer

Jeison Garcia1, Fernando Lizcano1

  • 1Doctorate in Biosciences, Center of Biomedical Research Universidad de La Sabana-CIBUS, School of Medicine, Universidad de La Sabana, Chía, Colombia.

Breast Cancer : Basic and Clinical Research
|November 15, 2016
PubMed

Insights

The histone demethylase KDM4C is crucial for triple-negative breast cancer cell viability and chromosomal stability. Inhibiting KDM4C disrupts cell division and growth, marking it as a potential therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Epigenetics

Background:

  • KDM4C (Jumonji-containing domain protein) is a histone demethylase implicated in various human cancers.
  • Its precise role in the viability of tumor cells, particularly triple-negative breast cancer (TNBC), remains unclear.

Purpose of the Study:

  • To investigate the significance of KDM4C activity in cell proliferation and chromosome segregation in TNBC cell lines.
  • To evaluate KDM4C as a potential therapeutic target for breast cancer.

Main Methods:

  • Utilized a specific demethylase inhibitor to modulate KDM4C activity in three TNBC cell lines.
  • Employed immunofluorescence assays to visualize KDM4C localization on mitotic chromosomes.
  • Conducted MTT cell proliferation assays to assess cell viability.

Main Results:

  • KDM4C was observed to be recruited to mitotic chromosomes.
  • Inhibition of KDM4C activity led to an increased incidence of mitotic segregation errors.
  • KDM4C demethylase activity was found to be essential for TNBC cell viability.

Conclusions:

  • Histone demethylase activity of KDM4C is vital for maintaining chromosomal stability and promoting cell growth in breast cancer.
  • KDM4C plays a critical role in breast cancer progression.
  • KDM4C represents a promising therapeutic target for breast cancer treatment.
Keywords:
KDM4Cbreast cancerchromosome segregationhistone demethylation

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