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Li C, Whelan R, Yang H, Jiang Y, Qiu C, Meng Q, Wei J. Anti-TSNARE1 IgG plasma levels differ by sex in patients with schizophrenia in a Chinese population. FEBS Open Bio 2019; 9:1705-1712. [PMID: 31336035 PMCID: PMC6768289 DOI: 10.1002/2211-5463.12704] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/03/2019] [Accepted: 07/22/2019] [Indexed: 12/15/2022] Open
Abstract
It was recently reported that levels of plasma IgG antibodies against peptide antigens derived from proteins encoded by schizophrenia-associated genes are altered in individuals with schizophrenia treated with antipsychotics. This study aimed to replicate the initial finding in antipsychotic-naïve patients with first-episode schizophrenia and to explore the possible mechanism by which immune tolerance of B cells may be altered in this disease. A total of 408 case-control plasma samples were collected for analysis of circulating IgG antibodies against fragments derived from TCF4, TSNARE1, ZNF804A, TRANK1, ERCC4, DPYD and CD25 using an in-house ELISA. The Mann-Whitney U-test revealed that patients with schizophrenia had a significant change in plasma anti-TSNARE1 and anti-CD25 IgG levels; male patients mainly contributed to the increased levels of anti-TSNARE1 IgG and anti-CD25 IgG. Receiver operating characteristic (ROC) curve analysis revealed that the anti-TSNARE1 IgG assay had an area under the ROC curve of 0.625 with a sensitivity of 15.7% and a specificity of 95.2%. Work on a B-cell model revealed that TRANK1-derived antigen treatments could enhance the proportions of CD83+ cells and apoptotic B cells when compared with TSNARE1-derived antigen and vehicle treatment. We conclude that there is a gender difference in autoimmune responses in schizophrenia and suggest that anti-TSNARE1 IgG may be indicative of schizophrenia in a subgroup of male patients.
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Affiliation(s)
- Chan Li
- Laboratory for Nursing Science & Institute of Laboratory MedicineGuangdong Medical UniversityDongguanChina
| | - Ruth Whelan
- Institute of Health Research & InnovationUniversity of the Highlands & IslandsInvernessUK
| | - Hua Yang
- Laboratory for Nursing Science & Institute of Laboratory MedicineGuangdong Medical UniversityDongguanChina
| | | | - Chaosen Qiu
- The Third People's Hospital of JiangmenChina
| | - Qingyong Meng
- Laboratory for Nursing Science & Institute of Laboratory MedicineGuangdong Medical UniversityDongguanChina
| | - Jun Wei
- Institute of Health Research & InnovationUniversity of the Highlands & IslandsInvernessUK
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Pei J, Wei S, Pei Y, Wu H, Wang D. Role of Dietary Gluten in Development of Celiac Disease and Type I Diabetes: Management Beyond Gluten-Free Diet. Curr Med Chem 2019; 27:3555-3576. [PMID: 30963964 DOI: 10.2174/0929867326666190409120716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 03/25/2019] [Accepted: 04/03/2019] [Indexed: 11/22/2022]
Abstract
Gluten triggers Celiac Disease (CD) and type I diabetes in genetically predisposed population of human leukocyte antigen DQ2/DQ8+ and associates with disorders such as schizophrenia and autism. Application of a strict gluten-free diet is the only well-established treatment for patients with CD, whereas the treatment for patients with celiac type I diabetes may be depend on the timing and frequency of the diet. The application of a gluten-free diet in patients with CD may contribute to the development of metabolic syndrome and nonalcoholic fatty liver disease and may also lead to a high glycemic index, low fiber diet and micronutrient deficiencies. The alteration of copper bioavailability (deficient, excess or aberrant coordination) may contribute to the onset and progress of related pathologies. Therefore, nutrient intake of patients on a gluten-free diet should be the focus of future researches. Other gluten-based therapies have been rising with interest such as enzymatic pretreatment of gluten, oral enzyme supplements to digest dietary gluten, gluten removal by breeding wheat varieties with reduced or deleted gluten toxicity, the development of polymeric binders to suppress gluten induced pathology.
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Affiliation(s)
- Jinli Pei
- Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570228, China.,Laboratory of Biotechnology and Molecular Pharmacology, School of Life and Pharmaceutical Sciences, Hainan University, Hainan 570228, China
| | - Shuangshuang Wei
- Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570228, China.,Laboratory of Biotechnology and Molecular Pharmacology, School of Life and Pharmaceutical Sciences, Hainan University, Hainan 570228, China
| | - Yechun Pei
- Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570228, China.,Laboratory of Biotechnology and Molecular Pharmacology, School of Life and Pharmaceutical Sciences, Hainan University, Hainan 570228, China
| | - Hao Wu
- Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570228, China.,Laboratory of Biotechnology and Molecular Pharmacology, School of Life and Pharmaceutical Sciences, Hainan University, Hainan 570228, China
| | - Dayong Wang
- Hainan Province Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Hainan, 570228, China.,Laboratory of Biotechnology and Molecular Pharmacology, School of Life and Pharmaceutical Sciences, Hainan University, Hainan 570228, China
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