Reduced apoptotic levels in squamous but not basal cell carcinomas correlates with detection of cutaneous human papillomavirus
2002

HPV and Apoptosis in Skin Cancer

Sample size: 36 publication 10 minutes Evidence: moderate

Author Information

Author(s): Jackson S, Ghali L, Harwood C, Storey A

Primary Institution: Cancer Research UK, Skin Tumour Laboratory

Hypothesis

Does the presence of human papillomavirus (HPV) affect apoptotic levels in squamous cell carcinomas?

Conclusion

HPV-positive squamous cell carcinomas have fewer apoptotic cells compared to HPV-negative ones, suggesting that HPV may inhibit apoptosis.

Supporting Evidence

  • HPV-positive tumours showed significantly lower levels of Bak expression.
  • Only one HPV-positive sample showed evidence of apoptosis.
  • HPV-negative tumours displayed higher levels of Bak expression and apoptosis.

Takeaway

This study found that skin cancers with HPV have less cell death than those without it, which might help the cancer grow.

Methodology

The study analyzed squamous cell carcinomas and basal cell carcinomas for Bak expression and correlated this with apoptotic levels and proliferation markers.

Potential Biases

Potential bias due to the small sample size and the specific patient demographics.

Limitations

The study does not estimate the viral load or the expression levels of HPV genes in the lesions.

Participant Demographics

20 immunocompetent patients with non-melanoma skin cancers.

Statistical Information

P-Value

0.008

Statistical Significance

p=0.008

Digital Object Identifier (DOI)

10.1038/sj.bjc.6600431

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