Akkermansia muciniphila: A Promising Next Generation Probiotic

An important mucin-degrading member of the phylum Verrucomicrobia, Akkermansia muciniphila(AKK) has become a promising next-generation probiotic with important host health implications. AKK, which is mostly found in the intestinal mucus layer, regulates gut barrier integrity, immunological responses, and metabolic activities to help maintain gut homeostasis. Recent research has explored its potential to contribute to the improvement of various diseases conditions such as obesity, type 2 diabetes, nonalcoholic fatty liver disease, cardiovascular illnesses, and neurodegenerative diseases. Its extracellular vesicles and outer membrane proteins affect T-cell responses, systemic inflammation, and even neurotrophic signaling, which is involved in mood and cognitive function. Its action seems context-dependent, though, as both positive and negative effects have been noted in various neurological conditions including multiple sclerosis and Parkinson’s disease. Significant strain-level diversity is shown by genomic analysis, indicating functional heterogeneity that could be the cause of these disparate results. Current research on AKK’s diverse functions in health and illness is discussed in this review, highlighting the directions for further studies to further explore its probiotic potential.