Microbial Exploitation of Host Purinergic Signaling: Unraveling Clostridioides difficile's Influence on Adenosine Homeostasis

Clostridioides difficile is a prominent pathogen responsible for severe gastrointestinal infections, with its pathogenicity intricately linked to interactions with host cellular mechanisms. This study explores how C. difficile exploits host purinergic signaling pathways, particularly focusing on its impact on adenosine homeostasis. Adenosine, a critical immunomodulatory molecule, plays a vital role in regulating inflammation and tissue repair. We investigate the molecular mechanisms by which C. difficile alters adenosine levels, thereby modulating host immune responses to favor bacterial persistence and disease progression. Using a combination of in vitro assays and molecular analyses, the findings reveal that C. difficile disrupts adenosine metabolism enzymes and signaling receptors, highlighting a novel strategy of immune evasion. Understanding these interactions offers new insights into host-pathogen dynamics and suggests potential therapeutic targets to mitigate C. difficile infections.