Interferon-Alpha Therapy and Telomere Length Loss in T Cells
Author Information
Author(s): O'Bryan Joel M., Potts James A., Bonkovsky Herbert L., Mathew Anuja, Rothman Alan L.
Primary Institution: University of Massachusetts Medical School
Hypothesis
Long-term interferon treatment would result in significant reduction in average telomere length in peripheral blood T lymphocytes.
Conclusion
Sustained interferon-alpha treatment increased telomere loss in naïve T cells and inhibited the accumulation of T cell memory expansions.
Supporting Evidence
- Significant telomere loss in naïve T cells occurred in the first 21 months in the interferon-alpha group.
- Telomere length at screening inversely correlated with Hepatitis-C viral load and body mass index.
- Expansion of CD8+CD45RA+CD57+ memory T cells was inhibited in the interferon-alpha group.
Takeaway
This study found that a treatment for hepatitis C can make certain immune cells lose their protective caps faster, which might make them less effective over time.
Methodology
Flow cytometry-based telomere length assay on peripheral blood mononuclear cell samples from the HALT-C study.
Potential Biases
Potential biases due to the non-blinded treatment assignment and the specific selection criteria for participants.
Limitations
The study was limited to a small sample size and specific patient demographics, which may not be generalizable.
Participant Demographics
29 Hepatitis-C virus infected subjects, with a mean age of 52.2 years, predominantly male.
Statistical Information
P-Value
0.005
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website