Growth arrest of the breast cancer cell line, T47D, by TNFa; cell cycle specificity and signal transduction
1993

How TNFa Affects Breast Cancer Cells

publication Evidence: moderate

Author Information

Author(s): L. Pusztai, C.E. Lewis, J.O'D. McGee

Primary Institution: University of Oxford, Nuffield Department of Pathology and Bacteriology

Hypothesis

Does TNFa induce growth arrest in the T47D breast cancer cell line?

Conclusion

TNFa causes a reversible growth arrest in T47D breast cancer cells at the G1/S transition of the cell cycle.

Supporting Evidence

  • TNFa exposure led to a dose-dependent inhibition of thymidine incorporation.
  • T47D cells accumulated in the G1 phase after TNFa treatment.
  • Cell viability remained unaffected during the experiments.

Takeaway

TNFa is like a stop sign for breast cancer cells, telling them to pause their growth without hurting them.

Methodology

The study involved exposing T47D cells to varying concentrations of TNFa and measuring thymidine incorporation to assess DNA synthesis.

Limitations

The study primarily focuses on one cell line, which may not represent all breast cancer types.

Participant Demographics

The study used the human breast cancer cell line T47D.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

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