Overview
Sphingobium is a genus of Gram-negative, aerobic bacteria within the family Sphingomonadaceae. Primarily known as environmental organisms capable of degrading aromatic compounds, Sphingobium species have been unexpectedly identified in human microbiome studies of the reproductive tract and gut.
Disease Associations
In endometriosis, Sphingobium is enriched in peritoneal fluid, representing one of the non-classical microbiome niches where bacterial communities contribute to local inflammatory environments (wei 2020 microbiota composition distribution reproductive tract endometriosis). Its presence in this typically sterile compartment raises questions about bacterial translocation and the breakdown of mucosal barriers in endometriotic disease.
Sphingobium has also been detected in metagenomic profiling of gut microbiota associated with colorectal adenoma (saito 2019 metagenomic gut microbiota colorectal adenoma) and in studies of the gut microbiota's influence on male reproductive function (cai 2022 gut microbiota male reproduction).
Cross-References
- endometriosis — peritoneal fluid enrichment
- colorectal cancer — adenoma-associated gut microbiota
- gut testis axis — gut microbiota and male reproduction
- bacterial translocation — barrier breakdown enabling non-gut organisms in sterile sites