The complement system, which is part of the innate immune system, must provide for the eradication of dying cells. Hos patienter med lupus kan immunsystemet ikke løse denne opgave ordentligt. The purpose of the project is to investigate whether the proteins in the part of the complement system called lektinvejen can be used as biomarkers for diagnosis, disease development, or treatment response. By understanding the various disease mechanisms, it is possible to distinguish between patients who have different underlying disease mechanisms and thus different treatment needs. Projektet forventes afsluttet ved udgangen af ??2020.