Major fimbrial subunit FimA (FimA)

Major fimbrial subunit FimA is a critical surface protein of the keystone periodontal pathogen Porphyromonas gingivalis (UniProt P14756). It serves as the primary structural component of long fimbriae, which are essential for bacterial colonization, biofilm development, and adhesion to oral substrates and host cells (PubMed: 21502361). FimA facilitates entry into host cells by interacting with various receptors, including Toll-like receptor 2 (TLR2) and integrins, thereby modulating the host immune response (PubMed: 15939751). Due to its pivotal role in the pathogenesis of periodontitis and its association with systemic conditions like cardiovascular disease and Alzheimer's, FimA is a primary target for vaccine development and anti-adhesive therapeutic strategies (PubMed: 30356713). Research focuses on neutralizing its function to prevent the establishment of dysbiotic microbial communities in the oral cavity (PubMed: 25644307). Therapeutic approaches include the development of peptide-based vaccines and small molecule inhibitors designed to block the assembly or binding capacity of the fimbriae (PubMed: 29158410).

Other names

Fimbrial protein AMajor fimbriae subunitPorphyromonas gingivalis FimA

Blocking bacterial adhesion to host tissues and preventing biofilm formation through competitive inhibition or antibody-mediated neutralization.