CHOP Researchers Reveal How NSAIDs Worsen C. difficile Infections
PHILADELPHIA, July 19, 2023 /PRNewswire/ -- Why do nonsteroidal anti-inflammatory drugs (NSAIDs) exacerbate gastrointestinal infections by Clostridioides difficile, the leading cause of antibiotic-associated diarrhea worldwide? In a new paper published in Science Advances, researchers at Children's Hospital of Philadelphia (CHOP) have begun to answer that question, showing that NSAIDs disrupt the mitochondria of cells lining the colon, sensitizing them to damage by pathogenic toxins.
- However, researchers still know very little about how these factors impact the course of C. difficile infection.
- Prior studies have shown that NSAIDs like indomethacin, aspirin, and naproxen negatively affect the gut, both in patients with C. difficile infection and other conditions like inflammatory bowel disease (IBD).
- The researchers observed that both indomethacin and a C. difficile toxins increased epithelial cell barrier permeability and inflammatory cell death.
- Surprisingly, the researchers found that NSAIDs exacerbate C. difficile infection independent of COX inhibition and instead through off-target effects on mitochondria.