Biomarkers of subclinical cholestasis predict cancer immunotherapy outcomes.

In a recent paper published in Cancer Cell, we identified subclinical cholestasis as an accessible imprint of gut dysbiosis predicting resistance to immune checkpoint blockade. Our work connects γ-glutamyl transferase, bile-acid remodeling, and MAdCAM-1 loss to compromised antitumor immunity, opening avenues for novel biomarker-guided microbiota interventions.