Study of Immune Responses to BK Virus Large Tumor Antigen
Author Information
Author(s): Maurizio Provenzano, Laura Bracci, Stephen Wyler, Tvrtko Hudolin, Giovanni Sais, Rainer Gosert, Paul Zajac, Giorgio Palu', Michael Heberer, Hans H Hirsch, Giulio C Spagnoli
Primary Institution: University Hospital Basel, Switzerland
Hypothesis
The study investigates CD8+ T immune responses to BK virus large tumor antigen portions involved in p53 binding in HLA-A*0201+ BKV LTag experienced individuals.
Conclusion
The study found that there are widespread cellular immune responses against epitopes within the BK virus large tumor antigen that may play a role in immunosurveillance against tumors associated with BK virus infection.
Supporting Evidence
- All tested HLA-A*0201+ BKV LTag experienced individuals showed epitope-specific immune responses.
- LTag579–587 was naturally processed and induced cytotoxic responses.
- CD8+ T cells were detectable only in the CD45RA+ subset.
Takeaway
The body can recognize parts of a virus that might cause cancer, and this study looked at how well our immune system can respond to those parts.
Methodology
The study used peptide stimulation of CD8+ T cells from BKV seropositive donors and assessed immune responses through IFN-γ gene expression and cytotoxicity assays.
Potential Biases
Potential bias may arise from the selection of donors and the specific focus on HLA-A*0201+ individuals.
Limitations
The study was limited to a small sample size and focused only on HLA-A*0201+ individuals.
Participant Demographics
Participants were HLA-A*0201+ Caucasians with a mean age of 36.8 years.
Statistical Information
P-Value
0.0001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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