Porphyromonas gingivalis, a key pathogen in periodontitis, is able to adhere to and invade the pocket epithelium. Different capsular antigens of P. gingivalis have been identified (K-serotyping). These P. gingivalis capsular types show differences in adhesion capacity to human cell lines or to cells cultured on a feeder layer or stromal equivalent.
Catholic University of Leuven, Faculty of Medicine, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Department of Periodontology, Leuven, Belgium. Kurt.Dierickx@med.kuleuven.ac.be