Periodontal pathogens ( Porphyromonas gingivalis and Fusobacterium nucleatum) may promoting oral cancer ( Kaposi's sarcoma)

Kaposi's sarcoma  (KS) is a tumor caused by human herpesvirus 8 (HHV8, also known as Kaposi's sarcoma-associated herpesvirus, KSHV).  About 20% of HIV patients develop Kaposi's sarcoma (KS) lesions in the oral cavity while other patients never develop oral KS. It is not known if the oral micro environment plays a role in oral KS tumor development.

Xiaolan and colleagues from Case Western Reserve University, Cleveland, Ohio demonstrated that a group of metabolic by-products (short chain fatty acids), from bacteria that cause periodontal disease (Porphyromonas gingivalis and Fusobacterium nucleatum) promote lytic replication of KSHV. These new findings provide mechanistic support that periodontal pathogens create a unique micro environment in the oral cavity that contributes to KSHV replication and development of oral KS. However, more research is needed to find out if patients with KS suffer more often from periodontal disease and exhibit higher levels short chain fatty acids produced by the periodontal pathogens.

oral cavity Kaposi's sarcoma