Co-overexpression of Bag-1 and heat shock protein 70 in human epidermal squamous cell carcinoma: Bag-1-mediated resistance to 5-fluorouracil-induced apoptosis
2011

Bag-1 and Hsp70 in Skin Cancer

Sample size: 70 publication 10 minutes Evidence: high

Author Information

Author(s): Wood J, Pring M, Eveson J W, Price N, Proby C M, Hague A

Primary Institution: University of Bristol

Hypothesis

Does Bag-1 contribute to apoptosis resistance in epidermal squamous cell carcinoma?

Conclusion

Overexpression of Bag-1 and Hsp70 in poorly differentiated SCC may confer both enhanced tumour cell growth and apoptosis resistance.

Supporting Evidence

  • Bag-1 knockdown resulted in increased apoptosis in SCC-13 cells.
  • High Bag-1 levels correlate with reduced differentiation in SCC.
  • Co-expression of Bag-1 and Hsp70 is associated with poor prognosis in skin cancer.

Takeaway

This study found that a protein called Bag-1 helps skin cancer cells survive and grow, making them harder to kill with treatments.

Methodology

Immunohistochemistry for Bag-1 and Hsp70 was performed on 60 epidermal SCC and 10 normal skin samples, and SCC-13 cells were treated with 5-FU after Bag-1 knockdown.

Potential Biases

Potential bias in sample selection and interpretation of immunohistochemical results.

Limitations

The study is limited to a specific type of skin cancer and may not apply to other cancers.

Participant Demographics

41 males and 19 females, aged 60-100 years.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1038/bjc.2011.111

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