Soraya Játiva , Selene Torrico , Priscila Calle , Esteban Poch , Angeles Muñoz , Miriam García , Ana Belén Larque , Maria Teresa Torres Salido , Georgina Hotter
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引用次数: 0
Abstract
Macrophages must remove apoptotic cells to shield tissues from the deleterious components of dying cells. The development of chronic inflammation and autoimmune symptoms in systemic lupus is influenced by a deficiency in phagocytosis of apoptotic cells but the underlying mechanism is still unknown. Modifications in monocyte/macrophage phenotype brought on by an increase in their inflammatory phenotype would cause them to decrease the expression of CPT1a, which would reduce their ability to phagocytose, aggravating kidney damage in lupus nephritis. We aim to demonstrate that the deficiency of CPT1A in the immunological system determines lupus.
For this purpose, we will monitor CPT1a expression in blood monocytes and phagocytosis and CPT1a expression of macrophages isolated from kidneys and the inflammatory state in kidneys in two experimental models of lupus nephritis such as lupus induced pristane model and in the OVA-IC in vivo model. Additionally, we will test if reestablishing CPT1a expression in tissue macrophages restores the lost phagocytic function.
We evidenced that blood monocytes and macrophages isolated from kidneys in the two in vivo models have a reduced expression of CPT1a and a reduced phagocytosis. Phagocytosis could be restored only if macrophage administration leads to an increase in CPT1a expression in kidney macrophages. A new cell therapy to reduce kidney nephritis in lupus could be developed based on these results.
期刊介绍:
Immunology Letters provides a vehicle for the speedy publication of experimental papers, (mini)Reviews and Letters to the Editor addressing all aspects of molecular and cellular immunology. The essential criteria for publication will be clarity, experimental soundness and novelty. Results contradictory to current accepted thinking or ideas divergent from actual dogmas will be considered for publication provided that they are based on solid experimental findings.
Preference will be given to papers of immediate importance to other investigators, either by their experimental data, new ideas or new methodology. Scientific correspondence to the Editor-in-Chief related to the published papers may also be accepted provided that they are short and scientifically relevant to the papers mentioned, in order to provide a continuing forum for discussion.