Are Mast Cells Involved in Autoinflammatory Diseases

This research study is trying to find out if certain special immune cells, called mast cells, are involved in a group of conditions known as autoinflammatory diseases. These diseases happen when your body's natural defence system (called the innate immune system) doesn't work quite right. This can lead to repeated and sudden attacks of fever, along with other issues like stomach problems, joint pain, skin rashes, or inflammation in the eyes or ears. Some of the specific autoinflammatory diseases they are looking at include Familial Mediterranean Fever (FMF), TRAPS, MKD, and Cryopyrin Associated Periodic Syndrome (CAPS).

Even though doctors have learned a lot recently about the genes linked to these conditions, we still don't fully understand how certain autoinflammatory diseases work, especially those that haven't been clearly identified yet. Mast cells are another type of immune cell that can sometimes become overactive. When this happens, people can have symptoms like tummy pain, bloating, itchy skin, flushing, anxiety, and tiredness. Interestingly, some of these symptoms are quite similar to what people experience with autoinflammatory diseases. We already know that mast cells are involved in one type of autoinflammatory disease called Cryopyrin Associated Periodic Syndrome (CAPS).

The researchers think that mast cells might play a part in many autoinflammatory diseases. To test this idea, they will observe people with these conditions. They will look for outward signs of mast cell activity, measure certain substances in the blood and urine that are released by mast cells, and also examine small tissue samples from the gut and skin. By comparing these findings with people who have other inflammatory conditions, mast cell disorders, and healthy volunteers, they hope to get a clearer picture of whether mast cells are truly involved and how they might contribute to these diseases.