The Formyl Peptid Receptor Ligand Ac2-26 Improves the Integrity of the Blood−Brain Barrier in the Course of Pneumococcal Meningitis
2024

Ac2-26 Improves Blood-Brain Barrier Integrity in Pneumococcal Meningitis

publication Evidence: moderate

Author Information

Author(s): Deutloff Johannes, Pöhner Irina, Rößler Johann, Kipp Markus, Tauber Simone C., Brandenburg Lars-Ove

Primary Institution: Institute of Anatomy, Rostock University Medical Center

Hypothesis

Does the FPR ligand Ac2-26 influence the integrity of the blood-brain barrier during pneumococcal meningitis?

Conclusion

Ac2-26 treatment significantly prolongs blood-brain barrier integrity during pneumococcal meningitis in wild-type mice, but not in FPR2-deficient mice.

Supporting Evidence

  • Ac2-26 treatment significantly prolonged the maintenance of blood-brain barrier integrity in wild-type mice.
  • The effect of Ac2-26 was not observed in FPR2-deficient mice.
  • Fibrinogen levels increased in the brain tissue during infection, indicating blood-brain barrier dysfunction.

Takeaway

This study shows that a special protein can help keep the brain's protective barrier strong when there's a serious infection.

Methodology

Mice were infected with Streptococcus pneumoniae and treated with Ac2-26; blood-brain barrier integrity was analyzed using immunohistochemistry and immunofluorescence.

Participant Demographics

Male wild-type and FPR-deficient mice were used in the experiments.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/cells13242104

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