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Inhibition of SYK and cSrc kinases can protect bone and cartilage in preclinical models of osteoarthritis and rheumatoid arthritis. Sci Rep 2021; 11:23120. [PMID: 34848799 PMCID: PMC8632988 DOI: 10.1038/s41598-021-02568-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 10/26/2021] [Indexed: 11/08/2022] Open
Abstract
The pathophysiology of osteoarthritis (OA) includes the destruction of subchondral bone tissue and inflammation of the synovium. Thus, an effective disease-modifying treatment should act on both of these pathogenetic components. It is known that cSrc kinase is involved in bone and cartilage remodeling, and SYK kinase is associated with the inflammatory component. Thus the aim of this study was to characterize the mechanism of action and efficacy of a small molecule multikinase inhibitor MT-SYK-03 targeting SYK and cSrc kinases among others in different in vitro and in vivo arthritis models. The selectivity of MT-SYK-03 kinase inhibition was assayed on a panel of 341 kinases. The compound was evaluated in a set of in vitro models of OA and in vivo OA and RA models: surgically-induced arthritis (SIA), monosodium iodoacetate-induced arthritis (MIA), collagen-induced arthritis (CIA), adjuvant-induced arthritis (AIA). MT-SYK-03 inhibited cSrc and SYK with IC50 of 14.2 and 23 nM respectively. Only five kinases were inhibited > 90% at 500 nM of MT-SYK-03. In in vitro OA models MT-SYK-03 reduced hypertrophic changes of chondrocytes, bone resorption, and inhibited SYK-mediated inflammatory signaling. MT-SYK-03 showed preferential distribution to joint and bone tissue (in rats) and revealed disease-modifying activity in vivo by halving the depth of cartilage erosion in rat SIA model, and increasing the pain threshold in rat MIA model. Chondroprotective and antiresorptive effects were shown in a monotherapy regime and in combination with methotrexate (MTX) in murine and rat CIA models; an immune-mediated inflammation in rat AIA model was decreased. The obtained preclinical data support inhibition of cSrc and SYK as a viable strategy for disease-modifying treatment of OA. A Phase 2 clinical study of MT-SYK-03 is to be started.
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Yin BW, Li B, Mehmood A, Yuan C, Song S, Guo RY, Zhang L, Ma T, Guo L. BLK polymorphisms and expression level in neuromyelitis optica spectrum disorder. CNS Neurosci Ther 2021; 27:1549-1560. [PMID: 34637583 PMCID: PMC8611770 DOI: 10.1111/cns.13738] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/07/2021] [Accepted: 09/22/2021] [Indexed: 12/18/2022] Open
Abstract
Aim This study aimed to determine the correlation between B‐lymphoid tyrosine kinase (BLK) polymorphism, mRNA gene expression of BLK, and NMOSD in a Chinese Han population. Background B‐lymphoid tyrosine kinase gene expressed mainly in B cells plays a key role in various autoimmune disorders. However, no studies have investigated the association of BLK polymorphisms with neuromyelitis optica spectrum disorder (NMOSD). Methods Han Chinese population of 310 subjects were recruited to analyze three single nucleotide polymorphisms (rs13277113, rs4840568, and rs2248932) under allele, genotype, and haplotype frequencies, followed by clinical characteristics stratified analysis. Real‐time PCR was used to analyze mRNA expression levels of BLK in the peripheral blood mononuclear cells of 64 subjects. Results Patients with NMOSD showed lower frequencies of the minor allele G of rs2248932 than healthy controls (odds ratio (OR) =0.57, 95% confidence intervals (CI) 0.39–0.83, p = 0.003). The association between minor allele G of rs2248932 and reduced NMOSD susceptibility was found by applying genetic models of inheritance (codominant, dominant, and recessive) and haplotypes analysis. Subsequently, by stratification analysis for AQP4‐positivity, the minor allele G frequencies of rs2248932 in AQP4‐positive subgroup were significantly lower than in the healthy controls (OR =0.46, 95% CI 0.30–0.72, p = 0.001). Notably, the genotype GG of rs2248932 was more frequent in AQP4‐negative subgroup (n = 14) than in AQP4‐positive subgroup (n = 93) (p = 0.003, OR =0.05, 95% CI =0.01–0.57). BLK mRNA expression levels in the NMOSD patients (n = 36) were lower than in healthy controls (n = 28) (p < 0.05). However, the acute non‐treatment (n = 7), who were untreated patients in the acute phase from the NMOSD group, showed BLK mRNA expression levels 1.8‐fold higher than healthy controls (n = 8) (p < 0.05). Conclusion This study evaluated that the minor allele G of rs2248932 in BLK is associated with reduced susceptibility to NMOSD and protected the risk of AQP4‐positive. BLK mRNA expression in NMOSD was lower as compared to healthy controls while significantly increased in acute‐untreated patients.
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Affiliation(s)
- Bo-Wen Yin
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China.,Department of Neurology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Bin Li
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China
| | - Arshad Mehmood
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China
| | - Congcong Yuan
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China
| | - Shuang Song
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China
| | - Ruo-Yi Guo
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China
| | - Lu Zhang
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China
| | - Tianzhao Ma
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China
| | - Li Guo
- Department of Neurology, The Second Hospital of Hebei Medical University, City Shijiazhuang, Province Hebei, China.,Key Laboratory of Neurology of Hebei Province, City Shijiazhuang, Province Hebei, China
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Src Family Protein Kinase Controls the Fate of B Cells in Autoimmune Diseases. Inflammation 2020; 44:423-433. [PMID: 33037966 DOI: 10.1007/s10753-020-01355-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 09/07/2020] [Accepted: 09/30/2020] [Indexed: 02/07/2023]
Abstract
There are more than 80 kinds of autoimmune diseases known at present, including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), systemic sclerosis (SSc), inflammatory bowel disease (IBD), as well as other disorders. Autoimmune diseases have a characteristic of immune responses directly attacking own tissues, leading to systematic inflammation and subsequent tissue damage. B cells play a vital role in the development of autoimmune diseases and differentiate into plasma cells or memory B cells to secrete high-affinity antibody or provide long-lasting function. Drugs targeting B cells show good therapeutic effects for the treatment of autoimmune diseases, such as rituximab (anti-CD20 antibody). Src family protein kinases (SFKs) are believed to play important roles in a variety of cellular functions such as growth, proliferation, and differentiation of B cell via B cell antigen receptor (BCR). Lck/Yes-related novel protein tyrosine kinase (LYN), BLK (B lymphocyte kinase), and Fyn are three different kinds of SFKs mainly expressed in B cells. LYN has a dual role in the BCR signal. On the one hand, positive signals are beneficial to the development and maturation of B cells. On the other hand, LYN can also inhibit excessively activated B cells. BLK is involved in the proliferation, differentiation, and immune tolerance of B lymphocytes, and further affects the function of B cells, which may lead to autoreactive or regulatory cellular responses, increasing the risk of autoimmune diseases. Fyn may affect the development of autoimmune disorders via the differentiation of B cells in the early stage of B cell development. This article reviews the recent advances of SFKs in B lymphocytes in autoimmune diseases.
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Soh PXY, Marin Cely JM, Mortlock SA, Jara CJ, Booth R, Natera S, Roessner U, Crossett B, Cordwell S, Singh Khatkar M, Williamson P. Genome-wide association studies of 74 plasma metabolites of German shepherd dogs reveal two metabolites associated with genes encoding their enzymes. Metabolomics 2019; 15:123. [PMID: 31493001 DOI: 10.1007/s11306-019-1586-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 08/29/2019] [Indexed: 12/12/2022]
Abstract
INTRODUCTION German shepherd dogs (GSDs) are a popular breed affected by numerous disorders. Few studies have explored genetic variations that influence canine blood metabolite levels. OBJECTIVES To investigate genetic variants affecting the natural metabolite variation in GSDs. METHODS A total of 82 healthy GSDs were genotyped on the Illumina CanineHD Beadchip, assaying 173,650 markers. For each dog, 74 metabolites were measured through liquid and gas chromatography mass spectrometry (LC-MS and GC-MS) and were used as phenotypes for genome-wide association analyses (GWAS). Sliding window and homozygosity analyses were conducted to fine-map regions of interest, and to identify haplotypes and gene dosage effects. RESULTS Summary statistics for 74 metabolites in this population of GSDs are reported. Forty-one metabolites had significant associations at a false discovery rate of 0.05. Two associations were located around genes which encode for enzymes for the relevant metabolites: 4-hydroxyproline was significantly associated to D-amino acid oxidase (DAO), and threonine to L-threonine 3-dehydrogenase (LOC477365). Three of the top ten haplotypes associated to 4-hydroxyproline included at least one SNP on DAO. These haplotypes occurred only in dogs with the highest 15 measurements of 4-hydroxyproline, ranging in frequency from 16.67 to 20%. None of the dogs were homozygous for these haplotypes. The top two haplotypes associated to threonine included SNPs on LOC477365 and were also overrepresented in dogs with the highest 15 measurements of threonine. These haplotypes occurred at a frequency of 90%, with 80% of these dogs homozygous for the haplotypes. In dogs with the lowest 15 measurements of threonine, the haplotypes occurred at a frequency of 26.67% and 0% homozygosity. CONCLUSION DAO and LOC477365 were identified as candidate genes affecting the natural plasma concentration of 4-hydroxyproline and threonine, respectively. Further investigations are needed to validate the effects of the variants on these genes.
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Affiliation(s)
- Pamela Xing Yi Soh
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, Australia
| | - Juliana Maria Marin Cely
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, Australia
| | - Sally-Anne Mortlock
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, Australia
| | - Christopher James Jara
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, Australia
| | - Rachel Booth
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, Australia
| | - Siria Natera
- Metabolomics Australia, School of BioSciences, University of Melbourne, Parkville, Australia
| | - Ute Roessner
- Metabolomics Australia, School of BioSciences, University of Melbourne, Parkville, Australia
| | - Ben Crossett
- Sydney Mass Spectrometry, Charles Perkins Centre, University of Sydney, Sydney, Australia
| | - Stuart Cordwell
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, Australia
- Sydney Mass Spectrometry, Charles Perkins Centre, University of Sydney, Sydney, Australia
| | - Mehar Singh Khatkar
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, Australia
| | - Peter Williamson
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, Australia.
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Song RH, Li Q, Jia X, Yao QM, Wang B, Zhang JA. Polymorphisms of FAM167A-BLK Region Confer Risk of Autoimmune Thyroid Disease. DNA Cell Biol 2018; 37:932-940. [PMID: 30351170 DOI: 10.1089/dna.2018.4344] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Rong-hua Song
- Department of Endocrinology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
| | - Qian Li
- Department of Endocrinology, Jinshan Hospital of Fudan University, Shanghai, China
| | - Xi Jia
- Department of Endocrinology, Jinshan Hospital of Fudan University, Shanghai, China
| | - Qiu-ming Yao
- Department of Endocrinology, Jinshan Hospital of Fudan University, Shanghai, China
| | - Bin Wang
- Department of Endocrinology, Jinshan Hospital of Fudan University, Shanghai, China
| | - Jin-an Zhang
- Department of Endocrinology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
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Huang Y, Liu Y, Jiang L, Sun R, Zhang H, Liu R, Xu N. Apolipoprotein m (APOM) levels and APOM rs805297 G/T polymorphism are associated with increased risk of rheumatoid arthritis. Joint Bone Spine 2014; 81:32-6. [DOI: 10.1016/j.jbspin.2013.03.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Accepted: 03/20/2013] [Indexed: 01/22/2023]
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Deng FY, Lei SF, Zhu H, Zhang YH, Zhang ZL. Integrative analyses for functional mechanisms underlying associations for rheumatoid arthritis. J Rheumatol 2013; 40:1063-8. [PMID: 23678157 DOI: 10.3899/jrheum.121119] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Extensive association analyses including genome-wide association studies (GWAS) and powerful metaanalysis studies have identified a long list of loci associated with rheumatoid arthritis (RA) in very large populations, but most of them established statistical associations of genetic markers and RA only at the DNA level, without supporting evidence of functional relevance. Our study serves as a trial to detect the functional mechanisms underlying associations for RA by searching publicly available datasets and results. METHODS Based on publicly available datasets and results, we performed integrative analyses (gene relationships across implicated loci analysis, differential gene expression analysis, and functional annotation clustering analysis) and combined them with the expression quantitative trait locus (eQTL) results to dissect functional mechanisms underlying the associations for RA. RESULTS By searching 2 GWAS, Integrator and PheGenI, we selected 98 RA association results (p < 10(-5)). Among these associations, we found that 8 single-nucleotide polymorphisms (SNP; rs1600249, rs2736340, rs3093023, rs3093024, rs4810485, rs615672, rs660895, and rs9272219) serve as cis-effect regulators of the corresponding eQTL genes (BLK and CD4 in non-HLA region; CCR6, HLA-DQA1, and HLA-DQB1 in HLA region) that also were differentially expressed in RA-related cell groups. These 5 genes are closely related with immune response in function. CONCLUSION Our results showed the functional mechanisms underlying the associations of 8 SNP and the corresponding genes. This study is an example of mining publicly available datasets and results in validation of significant disease-association results. Using public data resources for integrative analyses may provide insights into the molecular genetic mechanisms underlying human diseases.
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Affiliation(s)
- Fei-Yan Deng
- Center for Genetic Epidemiology and Genomics, and the Department of Epidemiology, School of Public Health, Soochow University, Suzhou, Jiangsu, China
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Current World Literature. Curr Opin Rheumatol 2013; 25:398-409. [DOI: 10.1097/bor.0b013e3283604218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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