Understanding immune cells in autoimmune diseases and immune deficiencies

This research study collects samples and information from people with rheumatoid arthritis, lupus, or scleroderma, plus healthy volunteers, to better understand how the immune system works in these conditions. By comparing these groups, researchers hope to find new ways to treat and manage autoimmune diseases.

This study looks at how certain immune cells (natural killer T cells) behave in people with systemic lupus, by measuring specific immune receptor markers in blood. It may help researchers better understand lupus and how it can connect with other conditions like antiphospholipid syndrome or Sjögren’s.

This study looks at a specific type of immune cell activity (called neutrophil extracellular traps) in the blood of people with systemic sclerosis, other connective tissue diseases, and healthy volunteers. It aims to understand how these cells may be involved in the disease and could lead to better treatments.

This research study aims to better understand systemic lupus erythematosus (SLE), an autoimmune disease where the body's immune system attacks its own tissues. Researchers will evaluate patients with lupus, study genetic factors, and perform optional imaging tests to learn how the disease affects blood vessels and the heart.

This trial tests a tool (a way of collecting health information) to help doctors make better diagnosis, prognosis, and treatment decisions for children with certain immune problems. It also includes healthy children (like relatives) as comparison groups, to see how well the tool works.

This study collects blood, tissue, and other samples from people with autoimmune diseases like Crohn's disease, multiple sclerosis, or lupus. Researchers will study your immune cells (T cells) to learn what they are attacking, which could lead to better treatments in the future.