Common innate pathways to autoimmune disease.

Until recently, autoimmune disease research has primarily been focused on elucidating the role of the adaptive immune system. In the past decade or so, the role of the innate immune system in the pathogenesis of autoimmunity has increasingly been realized. Recent findings have elucidated paradigm-shifting concepts, for example, the implications of "trained immunity" and a dysbiotic microbiome in the susceptibility of predisposed individuals to clinical autoimmunity. In addition, the application of modern technologies such as the quantum dot (Qdot) system and 'Omics' (e.g., genomics, proteomics, and metabolomics) data-processing tools has proven fruitful in revisiting mechanisms underlying autoimmune pathogenesis and in identifying novel therapeutic targets. This review highlights recent findings discussed at the American Autoimmune Related Disease Association (AARDA) 2019 colloquium. The findings covering autoimmune diseases and autoinflammatory diseases illustrate how new developments in common innate immune pathways can contribute to the better understanding and management of these immune-mediated disorders. • The role of the innate immune system in the pathogenesis of autoimmunity is increasingly being realized. • 'Trained immunity' or 'innate immune memory' is a paradigm-shifting concept with broad applications. • Environmental factors, including host-resident microbiota, have a profound effect on autoimmunity • Common innate immune pathways can be targeted for the management of both autoimmune and autoinflammatory diseases. [ABSTRACT FROM AUTHOR]