UCLA Study: Creatine Boosts Cancer-Fighting Immune Cells
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- UCLA researchers found that creatine energizes dendritic cells, the immune cells that detect tumors and activate killer T cells, potentially strengthening cancer immunotherapy beyond the 20–40% of patients who currently benefit.
- Lili Yang, the study's senior author and a UCLA professor of microbiology, immunology and molecular genetics, led the work published in iScience, building on prior lab findings that creatine also boosts T cell function directly.
- Tumor-infiltrating dendritic cells showed far higher activity of the gene encoding the creatine transporter than dendritic cells in healthy tissue; engineering cells to lack that transporter crippled their survival and their ability to prime T cells.
- Daily creatine injections in mouse melanoma models significantly slowed tumor growth and increased both the number and activity of dendritic cells that infiltrated tumors.
- Creatine supplementation raised intracellular ATP in dendritic cells, sustaining the inflammatory signaling they need to coordinate anti-tumor attacks — a 'rechargeable battery' effect described by the researchers.
- Human monocyte-derived dendritic cells used to manufacture dendritic-cell cancer vaccines responded to creatine by activating more strongly and improving T cells' ability to target cancer-associated molecules in lab dishes.
- The experimental approaches have not been tested in cancer patients and are not FDA-approved; UCLA plans prospective clinical trials next, and the researchers urge patients to consult physicians before adding creatine to any cancer treatment routine.
Why it matters: If validated in humans, a cheap, widely available supplement could extend immunotherapy benefits to the 60–80% of cancer patients who currently don't respond — but the entire case rests on mice and lab-grown human cells, putting real-world use years away and behind an FDA trial process.
