Autoantibodies in lupus: Culprits or passive bystanders?
| Autor: | Anna Ghirardello, Chaim Putterman, Andrea Doria, Elin Synnøve Mortensen, Hua Xin Gao, C. Casu, Angela Tincani, Ole Petter Rekvig |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Cytotoxicity
Immunologic Anti-nuclear antibody Immunology Lupus nephritis Antigen-Antibody Complex Biology Autoantigens Receptors N-Methyl-D-Aspartate Glomerular Basement Membrane medicine Animals Humans Immunology and Allergy Lupus vasculitis Autoantibodies Neurons Systemic lupus erythematosus Glomerular basement membrane Lupus Vasculitis Central Nervous System Autoantibody Membrane Transport Proteins Bystander Effect medicine.disease Lupus Nephritis Chromatin Disease Models Animal medicine.anatomical_structure Nephritis Anti-SSA/Ro autoantibodies |
| Zdroj: | Autoimmunity Reviews. 11:596-603 |
| ISSN: | 1568-9972 |
| DOI: | 10.1016/j.autrev.2011.10.021 |
| Popis: | Several autoantibodies are culprits in the pathogenesis of organ damage in systemic lupus erythematosus, by means of established or postulated mechanisms, whereby inducing a perturbation of cell structure and function, with consequent tissue-organ impairment. Common autoantibody-mediated mechanisms of damage include cell surface binding with or without cytolysis, immune complex-mediated damage, penetration into living cells, binding to cross-reactive extracellular molecules. Experimental data from both murine models and humans have recently clarified the key role of autoantibodies in severe organ involvements, including nephritis, neuropsychiatric (NP) dysfunction, and cerebrovascular disease (CVD). In lupus nephritis early and late phases are distinguishable and mediated by different processes in which anti-chromatin antibodies are both inducing and perpetuating agents, by immune-complex formation and massive deposition in mesangial matrix at first, and in glomerular basement membrane at end-stage. Also NP abnormalities occur very early, much earlier than other systemic manifestations, and exacerbate with the increase in autoantibody titers. Among the autoantibodies mainly implicated in neurolupus, anti-β2 glycoprotein I (β2GPI) antibodies are preferentially involved in focal NP events which are a consequence of non-inflammatory microangiopathy; otherwise, anti-ribosomal P protein antibodies and N-methyl-d-aspartate receptor (NMDAR) antibodies cause diffuse NP events through a direct cytotoxic effect on neuronal cells at specific brain zones. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect