The clinical, immunological and genetic features of 12 Chinese patients with STAT3 mutations.,Allergy, Asthma & Clinical Immunology

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The clinical, immunological and genetic features of 12 Chinese patients with STAT3 mutations.
Allergy, Asthma & Clinical Immunology ( IF 2.7 ) Pub Date : 2020-07-22 , DOI: 10.1186/s13223-020-00462-w
Li Lin ₁ , Ying Wang ₁ , Bijun Sun ₁ , Luyao Liu ₁ , Wenjing Ying ₁ , Wenjie Wang ₁ , Qinhua Zhou ₁ , Jia Hou ₁ , Haili Yao ₁ , Liyuan Hu ₂ , Jinqiao Sun ₁ , Xiaochuan Wang ₁

Affiliation

Loss-of-function (LOF) mutations in signal transducer and activator of transcription 3 (STAT3) is one of the causes of STAT3 hyperimmunoglobulin E (IgE) syndrome (STAT3-HIES), while gain-of-function (GOF) mutations in STAT3 lead to immune dysregulation diseases. We retrospectively analyzed the age, common clinical symptoms, immunologic and molecular manifestations in 11 patients with LOF STAT3 mutations and 1 patient with a GOF STAT3 mutation. Twelve patients were enrolled in our study. Serum immunoglobulin measurements, lymphocyte subset detection and whole-exome sequencing were performed. The median age at diagnosis of STAT3-HIES patients was 4.74 years. Eczema, recurrent respiratory infections, fevers, abscesses and Staphylococcus aureus infections were the classic manifestations. Elevated serum IgE levels are not always observed in conjunction with high eosinophil counts. A moderate viral DNA load was also measured in peripheral blood mononuclear cells. We noticed that c. 1144C>T was the most common mutation site, followed by c.1311C>A. Additionally, c.1311C>A and c. 1826G>C are two novel mutations. Eight patients achieved notable improvement after receiving intravenous immunoglobulin. We updated the current knowledge of this topic. We found an earlier median age at diagnosis, a higher survival rate, and a general lack of nonimmunological abnormalities; we also described the treatment details and novel mutations involve in STAT3-HIES and compared STAT3 LOF and GOF mutations.

更新日期：2020-07-22

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