Effects of Chronic Lymphatic Filarial Infection on T Cell Memory and Effector Cells
Author Information
Author(s): Cathy Steel, Thomas B. Nutman
Primary Institution: Laboratory of Parasitic Diseases, National Institutes of Health
Hypothesis
Chronic lymphatic filarial infection alters T cell memory and effector cell populations.
Conclusion
Filarial-infected patients exhibit reduced T central memory and effector cell populations, which persist even after infection clearance.
Supporting Evidence
- Filarial-infected patients had a reduced CD4 central memory compartment.
- Effector memory cells were more prevalent in infected patients compared to uninfected normals.
- Defects in T cell populations persisted even after the clearance of infection.
Takeaway
People infected with a certain parasite have fewer important immune cells, even after they get better, which means they might not fight off other infections as well.
Methodology
The study used multiparameter flow cytometry to analyze T cell populations in patients from a filarial-endemic region.
Potential Biases
The skewed gender ratio may affect the generalizability of the findings.
Limitations
The study had a small sample size and a skewed male-to-female ratio.
Participant Demographics
The study included 29 permanent residents of the Cook Islands, with a mix of males and females aged 6 to 72.
Statistical Information
P-Value
p<0.05
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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