Abstract
IL-6 excess is central to the pathogenesis of multiple inflammatory conditions and is targeted in clinical practice by immunotherapy that blocks the IL-6 receptor encoded by IL6R. We describe two patients with homozygous mutations in IL6R who presented with recurrent infections, abnormal acute-phase responses, elevated IgE, eczema, and eosinophilia. This study identifies a novel primary immunodeficiency, clarifying the contribution of IL-6 to the phenotype of patients with mutations in IL6ST, STAT3, and ZNF341, genes encoding different components of the IL-6 signaling pathway, and alerts us to the potential toxicity of drugs targeting the IL-6R.
| Original language | English |
|---|---|
| Pages (from-to) | 1986-1998 |
| Number of pages | 13 |
| Journal | Journal of Experimental Medicine |
| Volume | 216 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1 Sep 2019 |
| Externally published | Yes |