Low Numbers of FOXP3 Positive Regulatory T Cells in Human Atherosclerotic Lesions
Author Information
Author(s): de Boer Onno J., van der Meer Jelger J., Teeling Peter, van der Loos Chris M., van der Wal Allard C.
Primary Institution: Academic Medical Center, University of Amsterdam
Hypothesis
What is the frequency of regulatory T cells in human atherosclerotic lesions?
Conclusion
The study found low frequencies of regulatory T cells in all stages of human plaque formation, which may contribute to chronic inflammation in atherosclerosis.
Supporting Evidence
- Treg were present in the intima during all stages of plaque development (0.5–5%).
- High risk lesions contained significantly increased numbers of Treg compared to early lesions.
- The frequency of FOXP3+ cells in high risk lesions was higher compared to stable lesions, but not significant.
- The mean frequency of FOXP3 positive T cells in atherosclerotic intima was much lower than in normal or inflammatory skin lesions.
Takeaway
The study looked at special immune cells in heart disease and found that there aren't many of them in the bad spots in the heart, which might be why inflammation keeps happening.
Methodology
The study analyzed atherosclerotic vessel fragments from patients using immunostaining for regulatory T cell markers.
Potential Biases
Potential bias in sample selection and the interpretation of immunostaining results.
Limitations
The study only examined a limited number of patients and specific types of lesions.
Participant Demographics
Patients undergoing vascular surgical interventions and autopsy, mean age 62.1 years.
Statistical Information
P-Value
p=0.06
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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