Characteristics of Regulatory T Cells in Head and Neck Cancer Patients
Author Information
Author(s): Schaefer C, Kim G G, Albers A, Hoermann K, Myers E N, Whiteside T L
Primary Institution: University of Pittsburgh Cancer Institute
Hypothesis
The peripheral blood mononuclear cells of patients with squamous cell carcinoma of the head and neck might be enriched in CD4+CD25+ regulatory T cells, which could contribute to the progression or recurrence of head and neck cancer.
Conclusion
Patients with head and neck cancer have a higher frequency of regulatory T cells in their circulation, which may contribute to their depressed antitumor immune responses.
Supporting Evidence
- Patients with head and neck cancer had significantly higher percentages of CD4+CD25+ regulatory T cells compared to normal controls.
- The presence of regulatory T cells was associated with depressed antitumor immune responses in patients.
- Regulatory T cells in patients were found to be more sensitive to apoptosis than non-regulatory T cells.
Takeaway
This study found that patients with head and neck cancer have more special immune cells called regulatory T cells, which can make it harder for their bodies to fight cancer.
Methodology
The study used multicolour flow cytometry to evaluate the frequency and characteristics of regulatory T cells in the blood of patients with head and neck cancer compared to normal controls.
Limitations
The study was limited by the small number of blood samples obtained from patients.
Participant Demographics
The study included 24 patients with head and neck cancer (16 male, 8 female) aged 46 to 84 years, and 17 normal controls aged 45 to 70 years.
Statistical Information
P-Value
<0.00005
Statistical Significance
p<0.00005
Digital Object Identifier (DOI)
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