Identifying Bacterial Proteins During Anthrax Infection
Author Information
Author(s): Rollins Sean M., Peppercorn Amanda, Young John S., Drysdale Melissa, Baresch Andrea, Bikowski Margaret V., Ashford David A., Quinn Conrad P., Handfield Martin, Hillman Jeffrey D., Lyons C. Rick, Koehler Theresa M., Calderwood Stephen B., Ryan Edward T.
Primary Institution: Massachusetts General Hospital, Boston, Massachusetts, United States of America
Hypothesis
Applying IVIAT to Bacillus anthracis could lead to increased understanding of bacterial events during infection, improved diagnostic assays, and novel therapeutic targets.
Conclusion
The study identified several B. anthracis proteins that are expressed during infection, which may serve as new diagnostic and therapeutic targets.
Supporting Evidence
- IVIAT identified 60 immuno-reactive clones representing 25 distinct B. anthracis genes.
- Significant immuno-reactivity was confirmed for ten B. anthracis gene products.
- Up-regulation of several identified genes was confirmed in vivo using RT-PCR.
Takeaway
The researchers found special proteins made by the anthrax bacteria when they infect, which could help us find new ways to treat or diagnose the disease.
Methodology
The study used IVIAT to screen a B. anthracis expression library and confirmed gene expression through quantitative real-time PCR.
Potential Biases
Potential misrepresentation of gene expression due to the use of attenuated strains and convalescent sera from immunized macaques.
Limitations
The study only identifies immuno-reactive proteins and may not fully represent gene expression in natural infections.
Participant Demographics
Healthy rhesus macaques, partially immunized against anthrax.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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