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Schober T, Magg T, Laschinger M, Rohlfs M, Linhares ND, Puchalka J, Weisser T, Fehlner K, Mautner J, Walz C, Hussein K, Jaeger G, Kammer B, Schmid I, Bahia M, Pena SD, Behrends U, Belohradsky BH, Klein C, Hauck F. A human immunodeficiency syndrome caused by mutations in CARMIL2. Nat Commun 2017; 8:14209. [PMID: 28112205 PMCID: PMC5473639 DOI: 10.1038/ncomms14209] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 11/17/2016] [Indexed: 12/22/2022] Open
Abstract
Human T-cell function is dependent on T-cell antigen receptor (TCR) and co-signalling as evidenced by immunodeficiencies affecting TCR-dependent signalling pathways. Here, we show four human patients with EBV+ disseminated smooth muscle tumours that carry two homozygous loss-of-function mutations in the CARMIL2 (RLTPR) gene encoding the capping protein regulator and myosin 1 linker 2. These patients lack regulatory T cells without evidence of organ-specific autoimmunity, and have defective CD28 co-signalling associated with impaired T-cell activation, differentiation and function, as well as perturbed cytoskeletal organization associated with T-cell polarity and migration disorders. Human CARMIL2-deficiency is therefore an autosomal recessive primary immunodeficiency disorder associated with defective CD28-mediated TCR co-signalling and impaired cytoskeletal dynamics. CARMIL2 (Rltpr) is involved in T-cell function. Here, the authors identify human CARMIL2-deficiency as an autosomal recessive primary immunodeficiency disorder characterized by EBV+ smooth muscle tumours, CD28 co-signalling deficiency and impaired cytoskeletal dynamics.
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Affiliation(s)
- T Schober
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany
| | - T Magg
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany
| | - M Laschinger
- Department of Surgery, Technische Universität München (TUM), Ismaninger Strasse 22, D-81675 Munich, Germany
| | - M Rohlfs
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany
| | - N D Linhares
- Laboratory of Clinical Genomics, Federal University of Minas Gerais, 190 Professor Alfredo Balena Avenida, Belo Horizonte 30130-100, Brazil
| | - J Puchalka
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany
| | - T Weisser
- Department of Surgery, Technische Universität München (TUM), Ismaninger Strasse 22, D-81675 Munich, Germany
| | - K Fehlner
- Department of Surgery, Technische Universität München (TUM), Ismaninger Strasse 22, D-81675 Munich, Germany
| | - J Mautner
- Research Unit Gene Vectors, Helmholtz Zentrum München (HMGU)-German Research Center for Environmental Health, Marchioninistrasse 25, D-81377 Munich, Germany.,Children's Hospital, Technische Universität München (TUM), Munich D-80804, Germany.,German Centre for Infection Research (DZIF), Trogerstrasse 30, D-81675 Munich, Germany
| | - C Walz
- Institute of Pathology, Ludwig-Maximilians-Universität (LMU), Thalkirchner Strasse 36, D-80337 Munich, Germany
| | - K Hussein
- Institute of Pathology, Hannover Medical School (MHH), Carl-Neuberg-Strasse 1, D-30625 Hanover, Germany
| | - G Jaeger
- Department of Diagnostic Virology, Max von Pettenkofer-Institute, Ludwig-Maximilians-Universität (LMU), Pettenkoferstrasse 9a, D-80336 Munich, Germany
| | - B Kammer
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany
| | - I Schmid
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany
| | - M Bahia
- Department of Pediatric Gastroenterology, Federal University of Minas Gerais, 110 Prof. Alfredo Balena Avenida, Belo Horizonte 30130-100, Brazil
| | - S D Pena
- Laboratory of Clinical Genomics, Federal University of Minas Gerais, 190 Professor Alfredo Balena Avenida, Belo Horizonte 30130-100, Brazil
| | - U Behrends
- Research Unit Gene Vectors, Helmholtz Zentrum München (HMGU)-German Research Center for Environmental Health, Marchioninistrasse 25, D-81377 Munich, Germany.,Children's Hospital, Technische Universität München (TUM), Munich D-80804, Germany.,German Centre for Infection Research (DZIF), Trogerstrasse 30, D-81675 Munich, Germany
| | - B H Belohradsky
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany
| | - C Klein
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany.,German Centre for Infection Research (DZIF), Trogerstrasse 30, D-81675 Munich, Germany
| | - F Hauck
- Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universität (LMU), Lindwurmstrasse 4, D-80337 Munich, Germany.,German Centre for Infection Research (DZIF), Trogerstrasse 30, D-81675 Munich, Germany
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