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Apo material as a trigger for inflammation in systemic lupus erythematosus
Hanna Marie Meesmann1, Marijo Parcina, Hanns-Martin Lorenz
1Department of Medicine V, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.
Abstract:
While several characteristics of systemic lupus erythematosus (SLE) have been investigated, the distinct pathogenetic mechanisms leading to autoimmunity and chronic inflammation are not understood yet. A central role for apo has been implicated in the pathogenesis of SLE and an increased rate of apo or a defective clearance of apo cells have repeatedly been described in SLE patients, which show elevated levels of alpha-interferon (alphaIFN) as well as an enhanced expression of alphaIFN-alpha inducible genes referred to as alphaIFN signature. Recent publications link alphaIFN and apo: apo cell-derived microparticles can directly stimulate plasmacytoid dendritic cells to secret alphaIFN. This review highlights the role of apo material as source for AAg and as a trigger for chronic inflammation in the pathogenesis of SLE.
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