Strength of Neisseria meningitidis binding to endothelial cells requires highly-ordered CD147/β₂-adrenoceptor clusters assembled by alpha-actinin-4.

ABSTRACT: Neisseria meningitidis (meningococcus) is an invasive bacterial pathogen that colonizes human vessels, causing thrombotic lesions and meningitis. Establishment of tight interactions with endothelial cells is crucial for meningococci to resist haemodynamic forces. Two endothelial receptors, CD147 and the β2-adrenergic receptor (β₂AR), are sequentially engaged by meningococci to adhere and promote signalling events leading to vascular colonization, but their spatiotemporal coordination is unknown. Here we report that CD147 and β₂AR form constitutive hetero-oligomeric complexes. The scaffolding protein α-actinin-4 directly binds to the cytosolic tail of CD147 and governs the assembly of CD147-β₂AR complexes in highly ordered clusters at bacterial adhesion site

SUBMITTER: Maissa N 

PROVIDER: S-EPMC5461506 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature