Gut Microbiota in Liver Metastasis of Small Cell Lung Cancer
A NEW review has highlighted the gut microbiota as a potential systemic driver of liver metastasis in small cell lung cancer, shifting attention beyond tumor genetics alone to the gut liver axis. The authors describe liver metastasis in small cell lung cancer as a major clinical challenge associated with poor outcomes, transient benefit from chemoimmunotherapy, and limited treatment options. They argue that microbial dysbiosis may help create a permissive hepatic environment that supports metastatic seeding, immune escape, and resistance to treatment.
According to the review, dysbiosis may disrupt intestinal barrier integrity and increase translocation of microbial products into portal circulation. This includes lipopolysaccharide and other inflammatory…