A Novel Mutation in the IL6R Gene Identified in a Family with Asthma Patients.

Trueb, Beat; Zhuang, Lei; Villiger, Peter M. (2020). A Novel Mutation in the IL6R Gene Identified in a Family with Asthma Patients. Genetic testing and molecular biomarkers, 24(10), pp. 658-664. Mary Ann Liebert 10.1089/gtmb.2020.0081

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Background:
Allergic diseases, including asthma, atopic dermatitis, allergic rhinitis, and food allergies, are caused by both environmental and genetic factors. The allergic condition, where genetic factors make up the largest proportion (up to 95%), is asthma.
Aim:
To identify polymorphisms and mutations in potentially disease-causing genes in a family affected with allergic asthma.
Methods:
Whole exome sequencing of the index patient was performed via next-generation sequencing. Variants in known allergy-associated susceptibility genes were identified by comparison with the reference genome GRChr37.
Results:
Seven common polymorphisms and three rare mutations were identified in the allergy-susceptibility genes of the index patient. Only four of these variants co-segregated with a second patient in the same family. These variants occurred in the TENS1, NPSR1, RAD50, and IL6R genes.
Discussion:
The variants observed in TENS1 and NPSR1 are relatively common (minor allele frequency, MAF ∼0.4), whereas the mutation in RAD50 is rare (MAF 0.0035). The mutation identified in IL6R (S409P) has never been found before. IL6R encodes an important receptor of the inflammatory system. The mutation occurs in the intracellular domain within a tyrosine-based motif, which is required for sorting of the IL6R protein to the basolateral side of polarized cells. It is likely that this rare mutation contributes-together with the other variants-to the predisposition to asthma and other allergic diseases.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Rheumatologie
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Rheumatologie

04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Rheumatology, Clinical Immunology and Allergology

UniBE Contributor:

Trueb, Beat; Zhuang, Lei and Villiger, Peter

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1945-0257

Publisher:

Mary Ann Liebert

Language:

English

Submitter:

Marlise Bühler Zimmermann

Date Deposited:

23 Dec 2020 15:40

Last Modified:

23 Dec 2020 15:40

Publisher DOI:

10.1089/gtmb.2020.0081

PubMed ID:

32907400

Uncontrolled Keywords:

IL6R allergic rhinitis allergy asthma atopic dermatitis interleukin-6

BORIS DOI:

10.48350/149416

URI:

https://boris.unibe.ch/id/eprint/149416

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