Oral biofilm matrix protein

Oral biofilm matrix proteins are a diverse set of bacterial and host-derived proteins embedded within the extracellular polymeric substances matrix of microbial biofilms found in the oral cavity. They play critical roles in adhesion, structural integrity, enzymatic activity, metabolic support, antimicrobial resistance, and modulation of host immune responses. Key classes include surface adhesins (pili, fimbriae), amyloid-like fibers (curli, antigen I/II, WapA), leucine-rich repeat proteins, stress-response proteins, and exoenzymes. These proteins, along with exopolysaccharides, eDNA, and lipids, form a resilient matrix that underlies the architecture and pathogenesis of oral biofilms. Interventions targeting matrix proteins aim to disrupt biofilm formation, destabilize mature biofilms, and enhance antimicrobial efficacy, addressing chronic oral diseases such as caries and periodontitis. However, the term connotes a broad and heterogeneous class rather than a single actionable target for drug discovery.

Other names

Dental plaque matrix proteinBiofilm EPS proteinExtracellular polymeric substance proteinOral plaque biofilm protein

Disruption of protein-mediated adhesion; Enzymatic degradation of matrix scaffold; Alteration of protein folding and aggregation; Blockade of amyloid formation; Enhancement of immune clearance