How SHIP Affects Macrophage Response to Francisella Infection
Author Information
Author(s): Parsa Kishore V. L, Ganesan Latha P, Rajaram Murugesan V. S, Gavrilin Mikhail A, Balagopal Ashwin, Mohapatra Nrusingh P, Wewers Mark D, Schlesinger Larry S, Gunn John S, Tridandapani Susheela
Primary Institution: The Ohio State University
Hypothesis
SHIP negatively regulates the pro-inflammatory cytokine response in macrophages infected with Francisella novicida.
Conclusion
SHIP acts as a negative regulator of pro-inflammatory cytokine production in macrophages during Francisella infection.
Supporting Evidence
- SHIP-deficient macrophages produced significantly higher levels of IL-12, IL-6, and RANTES compared to wild-type macrophages.
- Inhibition of the PI3K pathway decreased the production of pro-inflammatory cytokines.
- SHIP was found to be phosphorylated upon infection, indicating its activation.
Takeaway
When mice's immune cells are infected by a certain bacteria, a protein called SHIP helps keep the immune response from getting too strong, which is important for controlling inflammation.
Methodology
The study involved infecting murine macrophages with Francisella novicida and analyzing cytokine production and signaling pathways.
Participant Demographics
Murine macrophages from SHIP+/+ and SHIP−/− mice were used.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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