Translated, this means that researches found that UV radiation can impact RNA (regulatory molecules within the cell), which is what triggers inflammation, which can contribute to a lupus flare. Per the article, "Some people have excess sensitivity to UV light, patients with lupus, for example. We are exploring if we can help them by blocking the pathway we discovered." Wouldn't that be fabulous?
The Lupus Foundation does a great job of covering photosensitivity here , and there's a good article about the RNA breakthroughs here , which is where the selections above was taken.