One of the molecules responsible for triggering the inflammation that causes allergic respiratory diseases, such as asthma and allergic rhinitis, has just been discovered by scientists from the CNRS, Inserm and the Université Toulouse III – Paul Sabatier.
Apr 12 2024CNRS One of the molecules responsible for triggering the inflammation that causes allergic respiratory diseases, such as asthma and allergic rhinitis, has just been discovered by scientists from the CNRS, Inserm and the Université Toulouse III – Paul Sabatier. This molecule, from the alarmin family, represents a therapeutic target of major interest for the treatment of allergic diseases.
The inflammation process plays a crucial role in allergic respiratory diseases, such as asthma and allergic rhinitis. Although the pulmonary epithelium, the carpet of cells that forms the inner surface of the lungs, is recognized as a major player in the respiratory inflammation that causes these diseases, the underlying mechanisms are still poorly understood.
A research team has identified one of the molecules responsible for triggering these allergic reactions, in a study co-led by two CNRS and Inserm scientists working at l'Institut de pharmacologie et de biologie structural . This molecule from the alarmin family, named TL1A, is released by lung epithelium cells a few minutes after exposure to a mold-type allergen. It cooperates with another alarmin, interleukin-33, to alert the immune system.
Alarmins, therefore, constitute major therapeutic targets for the treatment of respiratory allergic diseases. In a few years' time, treatments based on antibodies blocking the TL1A alarmin could benefit patients suffering from severe asthma or other allergic diseases. In France, at least 17 million people are affected by allergic diseases with the most severe forms of asthma being responsible for several hundred deaths every year.Journal reference:Schmitt, P., et al.
Molecule Respiratory Asthma Blood Blood Vessels Collagen Interleukin Lungs
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