Early-onset autoimmunity associated with SOCS1 haploinsufficiency

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Abstract: Autoimmunity can occur when a checkpoint of self-tolerance fails. The study of familial autoimmune diseases can reveal pathophysiological mechanisms involved in more common autoimmune diseases. Here, by whole-exome/genome sequencing we identify heterozygous, autosomal-dominant, germline loss-of-function mutations in the SOCS1 gene in ten patients from five unrelated families with early onset autoimmune manifestations. The intracellular protein SOCS1 is known to downregulate cytokine signaling by inhibiting the JAK-STAT pathway. Accordingly, patient-derived lymphocytes exhibit increased STAT activation in vitro in response to interferon-γ, IL-2 and IL-4 that is reverted by the JAK1/JAK2 inhibitor ruxolitinib. This effect is associated with a series of in vitro and in vivo immune abnormalities consistent with lymphocyte hyperactivity. Hence, SOCS1 haploinsufficiency causes a dominantly inherited predisposition to early onset autoimmune diseases related to cytokine hypersensitivity of immune cells

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Notes: Nature communications. - 11 (2020) , 5341, ISSN: 2041-1723

Event: Veröffentlichung

(where): Freiburg

(who): Universität

(when): 2020

Creator: Hadjadj, Jérôme
Castro, Carla Noemi
Heeg, Maximilian
Ehl, Stephan
Belot, Alexandre
Rieux-Laucat, Frédéric

DOI: 10.1038/s41467-020-18925-4

URN: urn:nbn:de:bsz:25-freidok-1679717

Rights: Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:35 AM CEST

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Hadjadj, Jérôme
Castro, Carla Noemi
Heeg, Maximilian
Ehl, Stephan
Belot, Alexandre
Rieux-Laucat, Frédéric
Universität

Time of origin

2020

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Early-onset autoimmunity associated with SOCS1 haploinsufficiency

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Other Objects (12)

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