Reumatol Clin (Engl Ed)
November 2024
The coronavirus disease 2019 (COVID-19) survivors are frequently observed to present persistent symptoms constituting what has been called "post-acute COVID-19 syndrome" (PACS) or "long COVID-19". Some clinical risk factors have been identified to be associated with PACS development; however, specific mechanisms responsible for PACS pathology remain unknown. This study investigates clinical, immunological, and metabolomic risk factors associated with post-acute COVID-19 syndrome (PACS) in 51 patients, assessed 7-19 months after acute infection.
View Article and Find Full Text PDFDendritic cells (DCs) play an important role in inducing immune tolerance. Inhibitory receptors, such as ILT2/CD85j, are involved in the tolerogenic effect of DCs and previous studies have indicated the important role of these receptors on the pathogenesis of autoimmune diseases. The aim of this study was to evaluate the expression and function of ILT2 in DCs from SLE patients.
View Article and Find Full Text PDFObjective: Describe the main activation and inhibitory pathways and receptors by which pDC regulate type I interferon secretion, as well as its association with autoimmune pathology.
Methods: A PubMed search for articles was conducted using the following key words: plasmacytoid dendritic cells, autoimmune diseases, viral infections and type I interferon. The search was limited to publications in English and from 1957 to 2012.
Abnormal production of interferon type I has been widely related to multiple autoimmune diseases, particularly systemic lupus erythematosus (SLE). It has been considered the molecular signature characterized by the overexpression of type I Interferon related genes in SLE patients. Among these, are the interferon regulatory factors (IRF).
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