Autoimmunity

Antigen-specific tolerance represents a promising strategy to treat type 1 diabetes and islet allograft rejection. Here, the authors deliver immune signals to lymph nodes to promote antigen-specific regulatory T cells and prevent disease in models of type 1 diabetes and allogenic islet transplantation.

Although anti-citrullinated protein antibodies (ACPAs) are a hallmark of rheumatoid arthritis and generally considered pathogenic, their functional relevance is incompletely understood. In this study, the authors describe an ACPA with a protective effect against antibody-induced arthritis in mice.

The genetic basis of systemic lupus erythematosus is not completely understood. Here, the authors perform multi-ancestry and multi-trait meta-analyses to identify 16 novel genetic loci and demonstrate the utility of polygenic risk score in clinical risk prediction when used with conventional lab tests.