Streptococcus species bacterial surface receptors

Streptococcus species bacterial surface receptors comprise a heterogeneous group of proteins and molecules, such as M proteins, pili, and fibronectin-binding proteins, that are anchored to the bacterial cell wall. These receptors play a fundamental role in the pathogenesis of streptococcal infections by mediating adherence to host tissues, facilitating colonization, and promoting invasion into deeper tissues (Source: PubMed, PMID: 16153737). Furthermore, they are instrumental in immune evasion, often by binding host regulatory proteins or degrading immune signaling molecules like C5a (Source: StatPearls, NBK554528). While these receptors are attractive targets for vaccine development and therapeutic antibodies, their high degree of sequence variability across different strains poses a significant hurdle. A major safety concern in targeting these receptors, particularly the M protein, is the risk of inducing cross-reactive antibodies that can lead to autoimmune conditions such as acute rheumatic fever (Source: NIH, NIAID).

Other names

Streptococcal surface proteinsStreptococcal adhesinsStreptococcal virulence factorsCell wall-anchored proteins

Neutralization of virulence factors, inhibition of host cell attachment, and enhancement of opsonophagocytosis by the host immune system.