Иммунная система может сигнализировать о целиакии за годы до появления симптомов

Your immune system may signal that celiac disease is coming long before you ever feel sick, and possibly even before you eat a single bite of gluten. The research focused on a type of immune cell called CD4 helper T cells. These white blood cells are to immune cells what sergeants are to soldiers—they give orders and help coordinate the body’s immune response, fight infections, and support antibody production. The surprise wasn’t that these cells were overactive. They were actually weaker, producing less of a key immune signal called interleukin-2, dividing more slowly, and less likely to survive. This pattern held regardless of sex, how recently someone was diagnosed, or how long they had been gluten-free. Wired Differently From the Start To detect these differences, researchers used a new technology called the Cyton2 Cell Timer and a method that briefly activates immune cells, then removes all signals to observe how the cells behave on their own. “Our assay is a bit like winding up a toy and letting it go to see how long it runs and what tricks it performs,” study author Dr. Vanessa Bryant said in a statement. What that winding-and-releasing revealed is a property the researchers called immune momentum—a new scientific concept describing how long immune cells stay active after their initial trigger has stopped. They found that CD4 helper cells were producing less of a key immune signal called interleukin-2, dividing more slowly, and less likely to survive. “Gluten is still necessary to activate the disease,” Korenblit said, “but the immune system may already be wired to respond abnormally. That may help explain why celiac disease clusters in families and why it overlaps with other autoimmune diseases.” A Window Into Autoimmune Disease While the study focused on celiac disease, the researchers believe similar immune patterns might exist in other autoimmune conditions, which affect about five percent of the population. Study author Jason Tye-Din believes the new testing model could eventually uncover hidden patterns across a range of autoimmune conditions, which affect roughly 5 percent of the population. “Although these helper cells aren’t always the main focus in autoimmune research, they may hold important clues to why disease develops in some people and not others,” Tye‑Din said in the statement. The team is now investigating whether similar immune patterns exist in other autoimmune conditions and how early in life these differences appear. The implications for early detection are significant, though experts urge caution about how quickly this could translate to clinical practice. If future studies confirm that these immune patterns appear before symptoms or intestinal damage, testing immune cell behavior could identify high-risk individuals far earlier than is currently possible, Korenblit said. This, he added, could be especially useful for first-degree relatives of people with celiac disease, children with celiac-associated genes, or patients with other autoimmune diseases. “Earlier detection could allow closer monitoring, earlier antibody testing, nutritional assessment, and faster diagnosis once disease begins,” Korenblit said. “However, we would need larger, long-term studies following at-risk people over time before using this clinically.”