You probably know someone whose skin breaks out in thick, scaly patches that never quite go away. Psoriasis has that pattern. It circles back, and the strongest treatments often bring real side effects.
Researchers in Beijing now point to a specific metabolic switch inside the dendritic cells that coordinate immune inflammation.
A new paper in the Journal of Experimental Medicine, published November 9, 2026, reports that pantethine calmed that switch in mice and in a small group of patients. Pantethine is a vitamin B5 derivative sold as a supplement.
Researchers led by Wei-Na Zhang at the State Key Laboratory of Biomedical Analysis in Beijing found unusually high levels of enzymes called Vanins in the dendritic cells of psoriasis patients.
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These enzymes break pantethine down inside the cell. When pantethine runs low, the cell starts making more cholesterol, and that extra cholesterol tips it into an overactive state that drives skin inflammation.
How the trial actually looked
The human arm was small. Twenty-four patients with psoriasis were followed for 12 weeks.
Half received only the standard topical ointment of calcipotriene and betamethasone. The other half took pantethine tablets on top of the same ointment.
The pantethine group showed greater symptom improvement, and the effect was clearest in patients whose blood cholesterol was elevated to begin with.
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In mice, giving pantethine prevented psoriasis-like disease from developing at all.
That is encouraging, but it is a proof-of-concept trial, not the final word. The researchers said larger studies are needed to confirm the effect in humans.
Why the mechanism is the real news
Earlier research has pointed at the immune signals that may trigger psoriasis flares, and this study zooms in on one specific cell type.
Dendritic cells are the traffic controllers of the immune system. They decide when to call in T cells and launch an attack.
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If their cholesterol machinery is pushing them into overdrive, calming that machinery could, in principle, interrupt the chain reaction before the skin flares.
Psoriasis is a chronic autoimmune skin disease that, according to the American Academy of Dermatology, affects nearly 7.5 million adults in the United States.
Standard treatments include strong topicals and systemic drugs that suppress the immune system. These work, but they often come with side effects that patients have to weigh against relief.
What this does not mean for you
Pantethine is sold as a nutritional supplement, and it may be tempting to read this study as a green light. It is not.
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The dose, duration, and patient selection that worked in Beijing were part of a controlled trial. The biggest gains were seen in people who already had high baseline cholesterol.
Anyone considering pantethine for psoriasis should talk to a dermatologist first, especially if they are already on topical steroids or vitamin D analogs like calcipotriene.
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This article is made and published by Mie Hermansen, who may have used AI in the preparation.