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Geng R, Zhao Y, Xu W, Ma X, Jiang Y, Han X, Zhao L, Li Y. SIRPB1 regulates inflammatory factor expression in the glioma microenvironment via SYK: functional and bioinformatics insights. J Transl Med 2024; 22:338. [PMID: 38594692 PMCID: PMC11003053 DOI: 10.1186/s12967-024-05149-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 03/31/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND SIRPB1 expression is upregulated in various tumor types, including gliomas, and is known to contribute to tumor progression; nevertheless, its function in the immune milieu of gliomas is still mainly unknown. METHODS This study, we analyzed 1152 normal samples from the GTEx database and 670 glioma samples from the TCGA database to investigate the relationship between the expression of SIRPB1 and clinicopathological features. Moreover, SIRPB1 gene knockout THP-1 cell lines were constructed using CRISPR/Cas9 and were induced into a co-culture of macrophages and glioma cells in vitro to learn more about the role of SIRPB1 in the glioma immune milieu. Lastly, we established a prognostic model to predict the effect of SIRPB1 on prognosis. RESULTS Significantly higher levels of SIRPB1 expression were found in gliomas, which had an adverse effect on the immune milieu and correlated poorly with patient survival. SIRPB1 activation with certain antibodies results in SYK phosphorylation and the subsequent activation of calcium, MAPK, and NF-κB signaling pathways. This phenomenon is primarily observed in myeloid-derived cells as opposed to glioma cells. In vitro co-culture demonstrated that macrophages with SIRPB1 knockout showed decreased IL1RA, CCL2, and IL-8, which were recovered upon ectopic expression of SIRPB1 but reduced again following treatment with SYK inhibitor GS9973. Critically, a lower overall survival rate was linked to increased SIRPB1 expression. Making use of SIRPB1 expression along with additional clinicopathological variables, we established a nomogram that showed a high degree of prediction accuracy. CONCLUSIONS Our study demonstrates that glioma cells can be activated by macrophages via SIRPB1, subsequently reprogramming the TME, suggesting that SIRPB1 could serve as a promising therapeutic target for gliomas.
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Affiliation(s)
- Ren Geng
- Department of Neurosurgery, First Hospital of Jilin University, No. 1, Xinmin Street, Chaoyang District, Changchun, China
| | - Yao Zhao
- Department of Neurosurgery, First Hospital of Jilin University, No. 1, Xinmin Street, Chaoyang District, Changchun, China
| | - Wanzhen Xu
- Department of Neurosurgery, Qilu Hospital of Shandong University Dezhou Hospital, Dezhou, China
| | - Xiaoshan Ma
- Department of Neurosurgery, First Hospital of Jilin University, No. 1, Xinmin Street, Chaoyang District, Changchun, China
| | - Yining Jiang
- Department of Neurosurgery, First Hospital of Jilin University, No. 1, Xinmin Street, Chaoyang District, Changchun, China
| | - Xuefei Han
- Department of Neurosurgery, First Hospital of Jilin University, No. 1, Xinmin Street, Chaoyang District, Changchun, China
| | - Liyan Zhao
- Department of Blood Transfusion, Second Hospital of Jilin University, No. 4026, Yatai Street, Nanguan District, Changchun, China.
| | - Yunqian Li
- Department of Neurosurgery, First Hospital of Jilin University, No. 1, Xinmin Street, Chaoyang District, Changchun, China.
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Zhang R, Qin C, Zhang J, HonghongRen, Wang Y, Wu Y, Zhao L, Wang J, Zhang J, Liu F. DNA hypomethylation of Syk induces oxidative stress and apoptosis via the PKCβ/P66shc signaling pathway in diabetic kidney disease. FASEB J 2024; 38:e23564. [PMID: 38522019 DOI: 10.1096/fj.202301579r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 02/19/2024] [Accepted: 03/06/2024] [Indexed: 03/25/2024]
Abstract
Epigenetic alterations, especially DNA methylation, have been shown to play a role in the pathogenesis of diabetes mellitus (DM) and its complications, including diabetic kidney disease (DKD). Spleen tyrosine kinase (Syk) is known to be involved in immune and inflammatory disorders. We, therefore, investigated the possible involvement of Syk promoter methylation in DKD, and the mechanisms underlying this process. Kidney tissues were obtained from renal biopsies of patients with early and advanced DKD. A diabetic mouse model (ApoE-/- DM) was generated from ApoE knockout (ApoE-/-) mice using a high-fat and high-glucose diet combined with low-dose streptozocin intraperitoneal injection. We also established an in vitro model using HK2 cells. A marked elevation in the expression levels of Syk, PKCβ, and P66shc in renal tubules was observed in patients with DKD. In ApoE-/- DM mice, Syk expression and the binding of Sp1 to the Syk gene promoter were both increased in the kidney. In addition, the promoter region of the Syk gene exhibited hypomethylation. Syk inhibitor (R788) intervention improved renal function and alleviated pathologic changes in ApoE-/- DM mice. Moreover, R788 intervention alleviated oxidative stress and apoptosis and downregulated the expression of PKCβ/P66shc signaling pathway proteins. In HK2 cells, oxLDL combined with high-glucose stimulation upregulated Sp1 expression in the nucleus (compared with control and oxLDL groups), and this was accompanied by an increase in the binding of Sp1 to the Syk gene promoter. SP1 silencing downregulated the expression of Syk and inhibited the production of reactive oxygen species and cell apoptosis. Finally, PKC agonist intervention reversed the oxidative stress and apoptosis induced by Syk inhibitor (R406). In DKD, hypomethylation at the Syk gene promoter was accompanied by an increase in Sp1 binding at the promoter. As a consequence of this enhanced Sp1 binding, Syk gene expression was upregulated. Syk inhibitors could attenuate DKD-associated oxidative stress and apoptosis via downregulation of PKCβ/P66shc signaling pathway proteins. Together, our results identify Syk as a promising target for intervention in DKD.
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Affiliation(s)
- Rui Zhang
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Chunmei Qin
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Department of Nephrology, Luzhou People's Hospital, Luzhou, Sichuan, China
| | - Junlin Zhang
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - HonghongRen
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yiting Wang
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yucheng Wu
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Lijun Zhao
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Jiali Wang
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Jie Zhang
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, Chengdu, Sichuan, China
| | - Fang Liu
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, Sichuan, China
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3
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Tan G, Zheng S, Zhou B, Mo Z, Zhang Q, Zhang D, Li A, Liu X. Spleen tyrosine kinase facilitates the progression of papillary thyroid cancer regulated by the hsa_circ_0006417/miR-377-3p axis. Environ Toxicol 2024; 39:421-434. [PMID: 37792549 DOI: 10.1002/tox.23982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/20/2023] [Accepted: 09/18/2023] [Indexed: 10/06/2023]
Abstract
Papillary thyroid cancer (PTC) is a prevalent malignancy worldwide. Spleen tyrosine kinase (SYK) is a crucial enzyme that participates in various biological processes, including cancer progression. This study aims to uncover the biological function of SYK in PTC. SYK expression patterns in PTC were evaluated using quantitative real time polymerase chain reaction (qRT-PCR), immunohistochemistry (IHC), and western blot. Cell function assays were performed to assess the effects of SYK on PTC. Bioinformatics analysis was conducted to identify intriguing microRNA (miRNA) and circular RNA (circRNA). Dual-Luciferase Reporter or RNA immunoprecipitation assays were used to investigate the correlation among SYK, miR-377-3p, and hsa_circ_0006417. SYK was upregulated in PTC. Overexpression of SYK exhibited a positive correlation with tumor size, lymph node metastasis, and unfavorable disease-free survival. Functional assays revealed that SYK exerted tumorigenic effect on PTC cells through mTOR/4E-BP1 pathway. Mechanistically, hsa_circ_0006417 and miR-377-3p regulated SYK expression, offering modulating its tumor-promoting effects. Collectively, SYK acts as an oncogene in PTC through mTOR/4E-BP1 pathway, which is regulated by the hsa_circ_0006417/miR-377-3p axis, thereby providing a potential alternative for PTC treatment.
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Affiliation(s)
- Guangmou Tan
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Cancer Center, Southern Medical University, Guangzhou, China
- Department of Head and Neck Surgery, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Shiyang Zheng
- Department of Head and Neck Surgery, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Boxuan Zhou
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaohong Mo
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiong Zhang
- Department of Pathology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Donghui Zhang
- Department of Pathology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Aimin Li
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Cancer Center, Southern Medical University, Guangzhou, China
| | - Xinhui Liu
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Cancer Center, Southern Medical University, Guangzhou, China
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4
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Singh PK, Dangelmaier CA, Vari HR, Tsygankov AY, Kunapuli SP. Biochemical characterization of spleen tyrosine kinase (SYK) isoforms in platelets. Platelets 2023; 34:2249549. [PMID: 37661351 PMCID: PMC10502920 DOI: 10.1080/09537104.2023.2249549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/12/2023] [Accepted: 08/14/2023] [Indexed: 09/05/2023]
Abstract
Alternate splicing is among the regulatory mechanisms imparting functional diversity in proteins. Studying protein isoforms generated through alternative splicing is therefore critical for understanding protein functions in many biological systems. Spleen tyrosine kinase (Syk) plays an essential role in ITAM/hemITAM signaling in many cell types, including platelets. However, the spectrum of Syk isoforms expressed in platelets has not been characterized. Syk has been shown to have a full-length long isoform SykL and a shorter SykS lacking 23 amino acid residues within its interdomain B. Furthermore, putative isoforms lacking another 23 amino acid-long sequence or a combination of the two deletions have been postulated to exist. In this report, we demonstrate that mouse platelets express full-length SykL and the previously described shorter isoform SykS, but lack other shorter isoforms, whereas human platelets express predominantly SykL. These results both indicate a possible role of alternative Syk splicing in the regulation of receptor signaling in mouse platelets and a difference between signaling regulation in mouse and human platelets.
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Affiliation(s)
- Pankaj Kumar Singh
- Sol Sherry Thrombosis Research Center and Department of Cardiovascular Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Carol A. Dangelmaier
- Sol Sherry Thrombosis Research Center and Department of Cardiovascular Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Hymavathi Reddy Vari
- Sol Sherry Thrombosis Research Center and Department of Cardiovascular Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Alexander Y. Tsygankov
- Sol Sherry Thrombosis Research Center and Department of Cardiovascular Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Satya P. Kunapuli
- Sol Sherry Thrombosis Research Center and Department of Cardiovascular Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
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5
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Crowley HM, Georgantzoglou N, Tse JY, Williams EA, Mata DA, Martin SS, Guitart J, Bridge JA, Linos K. Expanding Our Knowledge of Molecular Pathogenesis in Histiocytoses: Solitary Soft Tissue Histiocytomas in Children With a Novel CLTC::SYK Fusion. Am J Surg Pathol 2023; 47:1108-1115. [PMID: 37522373 DOI: 10.1097/pas.0000000000002102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
The histiocytoses comprise a histopathologically and clinically diverse group of disorders bearing recurrent genomic alterations, commonly involving the BRAF gene and mitogen-activated protein kinase pathway. In the current study, a novel CLTC :: SYK fusion in 3 cases of a histopathologically distinct histiocytic neoplasm arising as solitary soft tissue lesions in children identified by next-generation sequencing and fluorescence in situ hybridization is described. Morphologically, all 3 neoplasms were composed of sheets of cells with round-oval nuclei and vacuolated eosinophilic cytoplasm but, in contrast to classic juvenile xanthogranuloma (JXG), Touton giant cells were absent. A separate cohort of classic JXG cases subsequently profiled by fluorescence in situ hybridization were negative for the presence of a CLTC::SYK fusion suggesting that CLTC::SYK fusion-positive histiocytoma is genetically and histologically distinct from JXG. We postulate that the CLTC::SYK fusion leads to aberrant activation of the SYK kinase, which is involved in variable pathways, including mitogen-activated protein kinase. The identification of a novel CLTC::SYK fusion may pave the way for the development of targeted therapeutic options for aggressive disease.
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Affiliation(s)
- Helena M Crowley
- Division of Pediatric Surgery and Urology, University of Maryland Children's Hospital
| | - Natalia Georgantzoglou
- Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, NH
| | | | | | | | - Stuart S Martin
- Department of Pharmacology and Physiology, University of Maryland School of Medicine, Baltimore, MD
| | - Joan Guitart
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Julia A Bridge
- Division of Molecular Pathology, ProPath, Dallas, TX
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE
| | - Konstantinos Linos
- Department of Pathology & Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
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6
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Dangelmaier CA, Patchin M, Vajipayajula DN, Vari HR, Singh PK, Wright MN, Kostyak JC, Tsygankov AY, Kunapuli SP. Phosphorylation of spleen tyrosine kinase at Y346 negatively regulates ITAM-mediated signaling and function in platelets. J Biol Chem 2023; 299:104865. [PMID: 37268160 PMCID: PMC10320515 DOI: 10.1016/j.jbc.2023.104865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 04/29/2023] [Accepted: 05/02/2023] [Indexed: 06/04/2023] Open
Abstract
Spleen tyrosine kinase (Syk) is expressed in a variety of hemopoietic cells. Upon phosphorylation of the platelet immunoreceptor-based activation motif of the glycoprotein VI (GPVI)/Fc receptor gamma chain collagen receptor, both the tyrosine phosphorylation and activity of Syk are increased leading to downstream signaling events. Although it has been established that the activity of Syk is regulated by tyrosine phosphorylation, the specific roles of individual phosphorylation sites remain to be elucidated. We observed that Syk Y346 in mouse platelets was still phosphorylated when GPVI-induced Syk activity was inhibited. We then generated Syk Y346F mice and analyzed the effect this mutation exerts on platelet responses. Syk Y346F mice bred normally, and their blood cell count was unaltered. We did observe potentiation of GPVI-induced platelet aggregation and ATP secretion as well as increased phosphorylation of other tyrosines on Syk in the Syk Y346F mouse platelets when compared to WT littermates. This phenotype was specific for GPVI-dependent activation, since it was not seen when AYPGKF, a PAR4 agonist, or 2-MeSADP, a purinergic receptor agonist, was used to activate platelets. Despite a clear effect of Syk Y346F on GPVI-mediated signaling and cellular responses, there was no effect of this mutation on hemostasis as measured by tail-bleeding times, although the time to thrombus formation determined using the ferric chloride injury model was reduced. Thus, our results indicate a significant effect of Syk Y346F on platelet activation and responses in vitro and reveal its complex nature manifesting itself by the diversified translation of platelet activation into physiological responses.
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Affiliation(s)
- Carol A Dangelmaier
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Margaret Patchin
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Dhruv N Vajipayajula
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Hymavathi Reddy Vari
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Pankaj K Singh
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Monica N Wright
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - John C Kostyak
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Alexander Y Tsygankov
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Satya P Kunapuli
- Department of Cardiovascular Sciences, Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA.
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7
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Dahlvang JD, Dick JK, Sangala JA, Kennedy PR, Pomeroy EJ, Snyder KM, Moushon JM, Thefaine CE, Wu J, Hamilton SE, Felices M, Miller JS, Walcheck B, Webber BR, Moriarity BS, Hart GT. Ablation of SYK Kinase from Expanded Primary Human NK Cells via CRISPR/Cas9 Enhances Cytotoxicity and Cytokine Production. J Immunol 2023; 210:1108-1122. [PMID: 36881874 PMCID: PMC10073313 DOI: 10.4049/jimmunol.2200488] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 02/07/2023] [Indexed: 03/09/2023]
Abstract
CMV infection alters NK cell phenotype and function toward a more memory-like immune state. These cells, termed adaptive NK cells, typically express CD57 and NKG2C but lack expression of the FcRγ-chain (gene: FCER1G, FcRγ), PLZF, and SYK. Functionally, adaptive NK cells display enhanced Ab-dependent cellular cytotoxicity (ADCC) and cytokine production. However, the mechanism behind this enhanced function is unknown. To understand what drives enhanced ADCC and cytokine production in adaptive NK cells, we optimized a CRISPR/Cas9 system to ablate genes from primary human NK cells. We ablated genes that encode molecules in the ADCC pathway, such as FcRγ, CD3ζ, SYK, SHP-1, ZAP70, and the transcription factor PLZF, and tested subsequent ADCC and cytokine production. We found that ablating the FcRγ-chain caused a modest increase in TNF-α production. Ablation of PLZF did not enhance ADCC or cytokine production. Importantly, SYK kinase ablation significantly enhanced cytotoxicity, cytokine production, and target cell conjugation, whereas ZAP70 kinase ablation diminished function. Ablating the phosphatase SHP-1 enhanced cytotoxicity but reduced cytokine production. These results indicate that the enhanced cytotoxicity and cytokine production of CMV-induced adaptive NK cells is more likely due to the loss of SYK than the lack of FcRγ or PLZF. We found the lack of SYK expression could improve target cell conjugation through enhanced CD2 expression or limit SHP-1-mediated inhibition of CD16A signaling, leading to enhanced cytotoxicity and cytokine production.
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Affiliation(s)
- James D. Dahlvang
- Department of Medicine, Division of Infectious Disease and International Medicine, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jenna K. Dick
- Department of Medicine, Division of Infectious Disease and International Medicine, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jules A. Sangala
- Department of Medicine, Division of Infectious Disease and International Medicine, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Philippa R. Kennedy
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Medicine, Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, MN 55455, USA
| | - Emily J. Pomeroy
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Kristin M. Snyder
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Veterinary and Biological Sciences, University of Minnesota, St. Paul, MN 55108, USA
| | - Juliette M. Moushon
- Department of Medicine, Division of Infectious Disease and International Medicine, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Claire E. Thefaine
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jianming Wu
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Veterinary and Biological Sciences, University of Minnesota, St. Paul, MN 55108, USA
| | - Sara E. Hamilton
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Martin Felices
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Medicine, Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jeffrey S. Miller
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Medicine, Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, MN 55455, USA
| | - Bruce Walcheck
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Veterinary and Biological Sciences, University of Minnesota, St. Paul, MN 55108, USA
| | - Beau R. Webber
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Branden S. Moriarity
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Geoffrey T. Hart
- Department of Medicine, Division of Infectious Disease and International Medicine, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Lead contact
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8
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Hao Y, Tang X, Xing J, Sheng X, Chi H, Zhan W. The role of Syk phosphorylation in Fc receptor mediated mIgM + B lymphocyte phagocytosis in flounder (Paralichthys olivaceus). Fish Shellfish Immunol 2022; 130:462-471. [PMID: 36162778 DOI: 10.1016/j.fsi.2022.09.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/12/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Spleen tyrosine kinase (Syk) is a non-receptor protein tyrosine kinase, and it mediates downstream signaling of FcR-mediated immune responses. Our previous work revealed that the expression of Syk was significantly up-regulated in flounder mIgM+ B lymphocytes after phagocytosis of antiserum-opsonized Edwardsiella tarda, which suggested Syk might be involved in Ig-opsonized phagocytosis. In this paper, phospho-Syk (pSyk) inhibitor was used to investigate the potential role of phosphorylated Syk in FcR-mediated phagocytosis of IgM+ B cells. Indirect immunofluorescence assay (IFA) and Western blotting showed that the level of phosphorylated Syk in the mIgM+ B lymphocytes treated with pSyk inhibitor was significantly lower compared to the control group after stimulation with flounder antiserum. Flow cytometry analysis showed that after 3 h incubation with antiserum-opsonized E. tarda, the phagocytosis rates of mIgM+ B lymphocytes from peripheral blood, spleen and head kidney pre-treated with pSyk inhibitor were 48.1%, 40.1% and 43.6% respectively, which were significantly lower than that of the control groups with 58.7%, 53.2% and 57.4%, respectively. And likewise, after pSyk inhibitor treatment, the proportions of mIgM+ B lymphocytes with higher intracellular reactive oxygen species (ROS) levels in peripheral blood, spleen and head kidney decreased to 15.2%, 12.0% and 12.1% from the control level of 26.5%, 25.9% and 26.3%, respectively. Moreover, the expression of three genes affected by pSyk, including phospholipase Cγ1 (PLCγ1), phospholipase Cγ2 (PLCγ2) and phosphatidylinositol 3 kinase (PI3K) were found to be significantly down-regulated in pSyk inhibitor-treated mIgM+ B lymphocytes post phagocytosis. These results suggest that pSyk plays a key role in FcR-mediated phagocytosis and bactericidal activity of mIgM+ B lymphocytes, which promotes further understanding of the regulatory role of pSyk in teleost B cells phagocytosis.
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Affiliation(s)
- Yanbo Hao
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Xiaoqian Tang
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Jing Xing
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Xiuzhen Sheng
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Heng Chi
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Wenbin Zhan
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
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9
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Hobbs HT, Shah NH, Shoemaker SR, Amacher JF, Marqusee S, Kuriyan J. Saturation mutagenesis of a predicted ancestral Syk-family kinase. Protein Sci 2022; 31:e4411. [PMID: 36173161 PMCID: PMC9601881 DOI: 10.1002/pro.4411] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/27/2022] [Accepted: 07/25/2022] [Indexed: 11/08/2022]
Abstract
Many tyrosine kinases cannot be expressed readily in Escherichia coli, limiting facile production of these proteins for biochemical experiments. We used ancestral sequence reconstruction to generate a spleen tyrosine kinase (Syk) variant that can be expressed in bacteria and purified in soluble form, unlike the human members of this family (Syk and zeta-chain-associated protein kinase of 70 kDa [ZAP-70]). The catalytic activity, substrate specificity, and regulation by phosphorylation of this Syk variant are similar to the corresponding properties of human Syk and ZAP-70. Taking advantage of the ability to express this novel Syk-family kinase in bacteria, we developed a two-hybrid assay that couples the growth of E. coli in the presence of an antibiotic to successful phosphorylation of a bait peptide by the kinase. Using this assay, we screened a site-saturation mutagenesis library of the kinase domain of this reconstructed Syk-family kinase. Sites of loss-of-function mutations identified in the screen correlate well with residues established previously as critical to function and/or structure in protein kinases. We also identified activating mutations in the regulatory hydrophobic spine and activation loop, which are within key motifs involved in kinase regulation. Strikingly, one mutation in an ancestral Syk-family variant increases the soluble expression of the protein by 75-fold. Thus, through ancestral sequence reconstruction followed by deep mutational scanning, we have generated Syk-family kinase variants that can be expressed in bacteria with very high yield.
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Affiliation(s)
- Helen T. Hobbs
- Department of ChemistryUniversity of CaliforniaBerkeleyCaliforniaUSA
- Department of Biomedical EngineeringUniversity of CaliforniaIrvineCaliforniaUSA
| | - Neel H. Shah
- Department of ChemistryColumbia UniversityNew YorkNew YorkUSA
| | - Sophie R. Shoemaker
- Department of Molecular and Cell BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Jeanine F. Amacher
- Department of ChemistryWestern Washington UniversityBellinghamWashingtonUSA
| | - Susan Marqusee
- Department of ChemistryUniversity of CaliforniaBerkeleyCaliforniaUSA
- Department of Molecular and Cell BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
- California Institute for Quantitative BiosciencesUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - John Kuriyan
- Department of ChemistryUniversity of CaliforniaBerkeleyCaliforniaUSA
- Department of Molecular and Cell BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
- California Institute for Quantitative BiosciencesUniversity of CaliforniaBerkeleyCaliforniaUSA
- Howard Hughes Medical InstituteUniversity of CaliforniaBerkeleyCaliforniaUSA
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10
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Denis V, Cassagnard N, Del Rio M, Cornillot E, Bec N, Larroque C, Jeanson L, Jarlier M, Combès E, Robert B, Gongora C, Martineau P, Dariavach P. Targeting the splicing isoforms of spleen tyrosine kinase affects the viability of colorectal cancer cells. PLoS One 2022; 17:e0274390. [PMID: 36103569 PMCID: PMC9473616 DOI: 10.1371/journal.pone.0274390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 08/26/2022] [Indexed: 11/18/2022] Open
Abstract
Spleen tyrosine kinase (Syk) expression have been both positively and negatively associated with tumorigenesis. Our goal was to evaluate the contribution of Syk and its two splice variants, full length Syk (L) and short isoform Syk (S), in the tumor biology of colorectal cancer cells (CRC). The analysis of Syk expression in primary human colorectal tumors, as well as the analysis of TCGA database, revealed a high Syk mRNA expression score in colorectal cancer tumors, suggesting a tumor promotor role of Syk in CRC. Our analysis showed that Syk (L) isoform is highly expressed in the majority of the tumor tissues and that it remains expressed in tumors in which global Syk expression is downregulated, suggesting the dependence of tumors to Syk (L) isoform. We also identified a small cluster of tumor tissues, which express a high proportion of Syk (S) isoform. This specific cluster is associated with overexpressed genes related to translation and mitochondria, and down regulated genes implicated in the progression of mitosis. For our functional studies, we used short hairpin RNA tools to target the expression of Syk in CRC cells bearing the activating K-Ras (G13D) mutation. Our results showed that while global Syk knock down increases cell proliferation and cell motility, Syk (L) expression silencing affects the viability and induces the apoptosis of the cells, confirming the dependence of cells on Syk (L) isoform for their survival. Finally, we report the promising potential of compound C-13, an original non-enzymatic inhibitor of Syk isolated in our group. In vitro studies showed that C-13 exerts cytotoxic effects on Syk-positive CRC cells by inhibiting their proliferation and their motility, and by inducing their apoptosis, while Syk-negative cell lines viability was not affected. Moreover, the oral and intraperitoneal administration of C-13 reduced the tumor growth of CRC DLD-1 cells xenografts in Nude mice in vivo.
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Affiliation(s)
- Vincent Denis
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
| | | | - Maguy Del Rio
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
- Institut régional du Cancer de Montpellier (ICM), Montpellier, France
| | | | - Nicole Bec
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
| | | | - Laura Jeanson
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
| | - Marta Jarlier
- Institut régional du Cancer de Montpellier (ICM), Montpellier, France
| | - Eve Combès
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
| | - Bruno Robert
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
| | - Céline Gongora
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
| | - Pierre Martineau
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
- * E-mail: (PD); (PM)
| | - Piona Dariavach
- IRCM, Univ Montpellier, Inserm, ICM, Montpellier, France
- * E-mail: (PD); (PM)
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11
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Aguirre-Ducler A, Gianino N, Villarroel-Espindola F, Desai S, Tang D, Zhao H, Syrigos K, Trepicchio WL, Kannan K, Gregory RC, Schalper KA. Tumor cell SYK expression modulates the tumor immune microenvironment composition in human cancer via TNF-α dependent signaling. J Immunother Cancer 2022; 10:jitc-2022-005113. [PMID: 35868661 PMCID: PMC9315908 DOI: 10.1136/jitc-2022-005113] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The expression of SYK in cancer cells has been associated with both tumor promoting and tumor suppressive effects. Despite being proposed as anticancer therapeutic target, the possible role of SYK in modulating local adaptive antitumor immune responses remains uncertain. Using detailed analysis of primary human tumors and in vitro models, we reveal the immunomodulatory effect of SYK protein in human solid cancer. METHODS We spatially mapped SYK kinase in tumor cells, stromal cells and tumor-infiltrating leukocytes (TILs) in 808 primary non-small cell lung carcinomas (NSCLCs) from two cohorts and in 374 breast carcinomas (BCs) from two independent cohorts. We established the associations of localized SYK with clinicopathologic variables and outcomes. The immunomodulatory role of SYK on tumor cells was assessed using in vitro cytokine stimulation, transcriptomic analysis and selective SYK blockade using a small molecule inhibitor. Functional responses were assessed using cocultures of tumor cells with peripheral blood lymphocytes. T cell responses in baseline and post-treatment biopsies from patients with BC treated with a SYK inhibitor in a phase I clinical trial were also studied. RESULTS Elevated tumor cell or leukocyte SYK expression was associated with high CD4+ and CD8+ TILs and better outcome in both NSCLC and BC. Tumor cell SYK was associated with oncogenic driver mutations in EGFR or KRAS in lung adenocarcinomas and with triple negative phenotype in BC. In cultured tumor cells, SYK was upregulated by TNFα and required for the TNFα-induced proinflammatory responses and T cell activation. SYK blockade after nivolumab in a phase I clinical trial including three patients with advanced triple negative BC reduced TILs and T cell proliferation. Our work establishes the proinflammatory function of tumor cell SYK in lung and breast cancer. SYK signaling in cultured tumor cells is required for T cell activation and SYK blockade limits adaptive antitumor immune responses and tumor rejection in patients with cancer. CONCLUSIONS Together, our results establish the immunomodulatory role of SYK expression in human solid tumors. This information could be used to develop novel biomarkers and/or therapeutic strategies.
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Affiliation(s)
- Adam Aguirre-Ducler
- Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA
- Translational Medicine Laboratory, Department of Cancer Research, Instituto Oncologico Fundacion Arturo Lopez Perez, Santiago 8320000, Chile
| | - Nicole Gianino
- Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Shruti Desai
- Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Daiwei Tang
- Yale School of Public Health, Yale University, New Haven, Connecticut, USA
| | - Hongyu Zhao
- Yale School of Public Health, Yale University, New Haven, Connecticut, USA
| | | | | | | | | | - Kurt A Schalper
- Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA
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12
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Tanishita Y, Sekiya H, Inohara N, Tsuchiya K, Mitsuyama M, Núñez G, Hara H. Listeria toxin promotes phosphorylation of the inflammasome adaptor ASC through Lyn and Syk to exacerbate pathogen expansion. Cell Rep 2022; 38:110414. [PMID: 35196496 DOI: 10.1016/j.celrep.2022.110414] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 10/08/2021] [Accepted: 01/31/2022] [Indexed: 12/20/2022] Open
Abstract
Inflammasome activation exacerbates infectious disease caused by pathogens such as Listeria monocytogenes, Staphylococcus aureus, and severe acute respiratory syndrome coronavirus 2. Although these pathogens activate host inflammasomes to regulate pathogen expansion, the mechanisms by which pathogen toxins contribute to inflammasome activation remain poorly understood. Here we show that activation of inflammasomes by Listeria infection is promoted by amino acid residue T223 of listeriolysin O (LLO) independently of its pore-forming activity. LLO T223 is critical for phosphorylation of the inflammasome adaptor ASC at amino acid residue Y144 through Lyn-Syk signaling, which is essential for ASC oligomerization. Notably, a Listeria mutant expressing LLO T223A is impaired in inducing ASC phosphorylation and inflammasome activation. Furthermore, the virulence of LLO T223A mutant is markedly attenuated in vivo due to impaired ability to activate the inflammasome. Our results reveal a function of a pathogen toxin that exacerbates infection by promoting phosphorylation of ASC.
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Affiliation(s)
- Yuko Tanishita
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hisateru Sekiya
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Naohiro Inohara
- Department of Pathology and Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Kohsuke Tsuchiya
- Division of Immunology and Molecular Biology, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Masao Mitsuyama
- Department of Microbiology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8501, Japan
| | - Gabriel Núñez
- Department of Pathology and Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Hideki Hara
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo 160-8582, Japan.
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13
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Lu PH, Wang JY, Chiu LY, Huang YT, Hung CF, Wu NL. Spleen tyrosine kinase regulates keratinocyte inflammasome activation and skin inflammation induced by UVB irradiation. Free Radic Biol Med 2022; 180:121-133. [PMID: 35007704 DOI: 10.1016/j.freeradbiomed.2022.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 12/09/2021] [Accepted: 01/05/2022] [Indexed: 12/31/2022]
Abstract
UVB can induce inflammatory responses contributing to diverse skin damage. UVB-triggered inflammasome activation of human keratinocytes underlies UVB-induced skin sunburn reaction. Pleiotropic functions of spleen tyrosine kinase (Syk) have rendered it as a potential therapeutic target. In immunocytes, Syk modulates immunoreceptor signaling and NLRP3 inflammasome activation. In skin, Syk mediates EGFR signaling, regulates keratinocyte differentiation and is involved in inflammatory disorders. However, roles of Syk in UVB-induced inflammasome activation in keratinocytes remain elusive. We investigated roles of keratinocyte Syk in UVB-triggered photo-responses. Primary normal human epidermal keratinocytes (NHEKs) isolated from skin were used. Syk knockdown or Syk inhibitor R406 was applied to investigate functions of keratinocyte Syk in UVB photobiology. The possible in vivo role of Syk was evaluated by checking UVB-induced skin damage in R406-treated mice. UVB was able to induce Syk phosphorylation in NHEKs that could be regulated by reactive oxygen species (ROS) generation and EGFR. Syk knockdown or Syk inhibitor (R406) treatment reduced UVB-triggered apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC) crosslinking, procaspase-1 cleavage, active IL-1β formation, and gasdermin D activation, indicating roles of Syk in UVB-triggered inflammasome activation in keratinocytes. UVB-induced production of IL-8, TNF-α, ROS, and phosphorylation of JNK and p38 were attenuated after Syk knockdown or inhibition. R406 ameliorated UVB-induced mouse skin damage, including erythema and transepidermal water loss (TEWL). Thus, Syk participated in UVB-induced inflammasome activation and inflammatory response in vitro and in vivo, suggesting potential photo-protective effects of Syk inhibition in UVB-induced skin inflammation.
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Affiliation(s)
- Po-Hsuan Lu
- Department of Dermatology, MacKay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd., Taipei City, 10449, Taiwan; Department of Medicine, MacKay Medical College, No.46, Sec. 3, Zhongzheng Rd., Sanzhi Dist., New Taipei City, 25245, Taiwan.
| | - Jen-Yu Wang
- Department of Dermatology, MacKay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd., Taipei City, 10449, Taiwan; MacKay Junior College of Medicine, Nursing, and Management, No. 42, Sec. 3, Zhongzheng Rd., Sanzhi Dist., New Taipei City, 25245, Taiwan.
| | - Ling-Ya Chiu
- Department of Medical Research, MacKay Memorial Hospital, No. 45, Minsheng Rd., Tamsui District, New Taipei City, 25160, Taiwan; Department of Pharmacology, College of Medicine, National Taiwan University, No.1 Jen Ai Road Section 1, Taipei, 100233, Taiwan.
| | - Yi-Ting Huang
- Department of Medicine, MacKay Medical College, No.46, Sec. 3, Zhongzheng Rd., Sanzhi Dist., New Taipei City, 25245, Taiwan; Department of Medical Research, MacKay Memorial Hospital, No. 45, Minsheng Rd., Tamsui District, New Taipei City, 25160, Taiwan.
| | - Chi-Feng Hung
- School of Medicine, Fu Jen Catholic University, No.510, Zhongzheng Rd., Xinzhuang Dist, New Taipei City, 242062, Taiwan; School of Pharmacy, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
| | - Nan-Lin Wu
- Department of Dermatology, MacKay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd., Taipei City, 10449, Taiwan; Department of Medicine, MacKay Medical College, No.46, Sec. 3, Zhongzheng Rd., Sanzhi Dist., New Taipei City, 25245, Taiwan; MacKay Junior College of Medicine, Nursing, and Management, No. 42, Sec. 3, Zhongzheng Rd., Sanzhi Dist., New Taipei City, 25245, Taiwan; Institute of Biomedical Sciences, MacKay Medical College, New Taipei, Taiwan.
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14
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Li F, Li L, Zhang J, Yang X, Liu Y. Histone methyltransferase DOT1L mediates the TGF-β1/Smad3 signaling pathway through epigenetic modification of SYK in myocardial infarction. Hum Cell 2022; 35:98-110. [PMID: 34635982 DOI: 10.1007/s13577-021-00625-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/30/2021] [Indexed: 12/12/2022]
Abstract
Myocardial infarction (MI) represents the most critical condition in coronary artery disease, and the fibrotic process, detrimental to optimal recovery, often sustains. In the present work, we assessed whether suppression of disruptor of telomeric silencing 1-like (DOT1L) could alleviate fibrosis in vivo and cardiac fibroblast (CFS) proliferation in vitro, and elucidated the possible mechanism involved in these events. After left coronary artery ligation, we found that the MI mice exhibited a decrease in cardiac function, along with evident MI and myocardial fibrosis. In addition, AngII increased CFS viability and migration, and enhanced the expression of fibrotic proteins. Inhibition of DOT1L ameliorated proliferation and fibrosis in CFS. Furthermore, DOT1L promoted the expression of spleen tyrosine kinase (SYK) by increasing the H3K79me2 modification of the SYK promoter. SYK upregulation reversed the inhibitory effect of DOT1L knockdown on CFS proliferation and fibrosis by activating the TGF-β1/Smad3 signaling. SYK also mitigated the ameliorative effect of DOT1L knockdown on myocardial injury and fibrosis caused by MI in vivo. In conclusion, these data indicated that DOT1L depletion might be a promising therapeutic target for fibrosis in MI.
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Affiliation(s)
- Fei Li
- Department of Cardiology, Yantai Mountain Hospital, Yantai, 264001, Shandong, People's Republic of China
| | - Lei Li
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No.16369, Jingshi Road, Jinan, 250014, Shandong, People's Republic of China
| | - Jiacheng Zhang
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No.16369, Jingshi Road, Jinan, 250014, Shandong, People's Republic of China
| | - Xuesong Yang
- Department of Vascular Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, Shandong, People's Republic of China
| | - Yang Liu
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No.16369, Jingshi Road, Jinan, 250014, Shandong, People's Republic of China.
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15
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Hobbs HT, Shah NH, Badroos JM, Gee CL, Marqusee S, Kuriyan J. Differences in the dynamics of the tandem-SH2 modules of the Syk and ZAP-70 tyrosine kinases. Protein Sci 2021; 30:2373-2384. [PMID: 34601763 PMCID: PMC8605373 DOI: 10.1002/pro.4199] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 01/03/2023]
Abstract
The catalytic activity of Syk-family tyrosine kinases is regulated by a tandem Src homology 2 module (tSH2 module). In the autoinhibited state, this module adopts a conformation that stabilizes an inactive conformation of the kinase domain. The binding of the tSH2 module to phosphorylated immunoreceptor tyrosine-based activation motifs necessitates a conformational change, thereby relieving kinase inhibition and promoting activation. We determined the crystal structure of the isolated tSH2 module of Syk and find, in contrast to ZAP-70, that its conformation more closely resembles that of the peptide-bound state, rather than the autoinhibited state. Hydrogen-deuterium exchange by mass spectrometry, as well as molecular dynamics simulations, reveal that the dynamics of the tSH2 modules of Syk and ZAP-70 differ, with most of these differences occurring in the C-terminal SH2 domain. Our data suggest that the conformational landscapes of the tSH2 modules in Syk and ZAP-70 have been tuned differently, such that the autoinhibited conformation of the Syk tSH2 module is less stable. This feature of Syk likely contributes to its ability to more readily escape autoinhibition when compared to ZAP-70, consistent with tighter control of downstream signaling pathways in T cells.
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Affiliation(s)
- Helen T. Hobbs
- Department of ChemistryUniversity of CaliforniaBerkeleyCaliforniaUSA
- Present address:
Department of Biomedical EngineeringUniversity of CaliforniaIrvineCaliforniaUSA
| | - Neel H. Shah
- California Institute for Quantitative BiosciencesUniversity of CaliforniaBerkeleyCaliforniaUSA
- Howard Hughes Medical InstituteUniversity of CaliforniaBerkeleyCaliforniaUSA
- Molecular Biophysics and Integrated Bioimaging DivisionLawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA
- Present address:
Department of ChemistryColumbia UniversityNew YorkNew YorkUSA
| | - Jean M. Badroos
- Department of Molecular and Cell BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Christine L. Gee
- California Institute for Quantitative BiosciencesUniversity of CaliforniaBerkeleyCaliforniaUSA
- Howard Hughes Medical InstituteUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Susan Marqusee
- Department of ChemistryUniversity of CaliforniaBerkeleyCaliforniaUSA
- California Institute for Quantitative BiosciencesUniversity of CaliforniaBerkeleyCaliforniaUSA
- Department of Molecular and Cell BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
- Molecular Biophysics and Integrated Bioimaging DivisionLawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA
| | - John Kuriyan
- Department of ChemistryUniversity of CaliforniaBerkeleyCaliforniaUSA
- California Institute for Quantitative BiosciencesUniversity of CaliforniaBerkeleyCaliforniaUSA
- Howard Hughes Medical InstituteUniversity of CaliforniaBerkeleyCaliforniaUSA
- Department of Molecular and Cell BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
- Molecular Biophysics and Integrated Bioimaging DivisionLawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA
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16
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Zeng HR, Zhao B, Rui X, Jia GH, Wu Y, Zhang D, Yu HN, Zhang BR, Yuan Y. A TCM formula VYAC ameliorates DNCB-induced atopic dermatitis via blocking mast cell degranulation and suppressing NF-κB pathway. J Ethnopharmacol 2021; 280:114454. [PMID: 34329716 DOI: 10.1016/j.jep.2021.114454] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/29/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE A Traditional Chinese Medicine (TCM) formula (VYAC) consists of three herbs including Viola yedoensis Makino, herb (Violaceae, Viola), Sophora flavescens Aiton, root (Fabaceae, Sophora) and Dictamnus dasycarpus Turcz, root and rhizome (Rutaceae, Dictamnus), has been traditionally prescribed to treat various skin diseases in clinic. AIM OF THE STUDY This study aims to investigate the therapeutic effects of VYAC on the 2,4-dinitrobenzene (DNCB) induced atopic dermatitis (AD)-like mice and to explore the underlying mechanisms. MATERIALS AND METHODS VYAC was extracted with 70 % aqueous ethanol and lyophilized powder was used. AD-like mice were challenged by DNCB, VYAC (150 and 300 mg/kg) were oral administration daily from day 7 to day 28. At the end of experiment, the clinical scores were recorded, serum and skin in the dorsal were isolated to evaluate the therapeutic effects of VYAC. RBL-2H3 cells were stimulated with C48/80 for degranulation and plasmids expressing constitutively active form of Syk (Silence or overexpression) were transfected into RBL-2H3 cells to explore the underlying mechanisms in vitro. RESULTS VYAC significantly ameliorated the cardinal symptoms in the DNCB-induced AD-like mice by repairing the skin barrier function, inhibiting mast cells infiltration, restraining the serum IgE and histamine release and decreasing TNF-α, IL-4 as well as Syk mRNA level in dorsal skin and alleviating inflammation. Besides, VYAC significantly blocked RBL-2H3 cells degranulation, reduced β-hexosaminidase and histamine release, and suppressed NF-κB pathway. What's more, the degranulation of RBL-2H3 was reduced after Syk silence and increased after Syk overexpression. CONCLUSION Our findings clearly suggested that VYAC treat AD through inhibiting the inflammatory mediator productions and blocking mast cell degranulation via suppressing Syk mediated NF-κB pathway.
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Affiliation(s)
- Hai Rong Zeng
- Department of Pharmacy, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China; Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Bei Zhao
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Xing Rui
- Baoshan Branch, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201900, China
| | - Gui Hua Jia
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Pharmaceutical Sciences, Jilin University, Jilin, 130021, China
| | - Yue Wu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Die Zhang
- Department of Pharmacy, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Hao Nao Yu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Ben Rui Zhang
- Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Yi Yuan
- Department of Pharmacy, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China.
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17
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Zhang J, Peng Y, He Y, Xiao Y, Wang Q, Zhao Y, Zhang T, Wu C, Xie Y, Zhou J, Yu W, Lu D, Bai H, Chen T, Guo P, Zhang Q. GPX1-associated prognostic signature predicts poor survival in patients with acute myeloid leukemia and involves in immunosuppression. Biochim Biophys Acta Mol Basis Dis 2021; 1868:166268. [PMID: 34536536 DOI: 10.1016/j.bbadis.2021.166268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 08/21/2021] [Accepted: 09/04/2021] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Treatment of acute myeloid leukemia (AML) remains a challenge. It is urgent to understand the microenvironment to improve therapy and prognosis. METHODS Bioinformatics methods were used to analyze transcription expression profile of AML patient samples with complete clinical information from UCSC Xena TCGA-AML datasets and validate with GEO datasets. Western blot, qPCR, RNAi and CCK8 assay were used to assay the effect of GPX1 expression on AML cell viability and the expression of genes of interest. RESULTS Our analyses revealed that highly expressed GPX1 in AML patients links to unfavorable prognosis. GPX1 expression was positively associated with not only fraction levels of myeloid-derived suppressor cells (MDSCs), monocytes and T cell exhaustion, the expression levels of MDSC markers, MDSC-promoting CCR2 and immune inhibitory checkpoints (TIM3/Gal-9, SIRPα and VISTA), but also negatively with low fraction levels of CD4+ and CD8+ T cells. Silencing GPX1 expression reduced AML cell viability and CCR2 expression. Moreover, GPX1-targetd kinases were PKC family, SRC family, SYK and PAK1, which promote AML progression and the resistance to therapy. Furthermore, Additionally, GPX1-associated prognostic signature (GPS) is an independent risk factor with high area under curve (AUC) values of receiver operating characteristic (ROC) curves. High risk group based on GPS enriched not only with endocytosis which transfers mitochondria to favor AML cell survival in response to chemotherapy, but also NOTCH, WNT and TLR signaling which promote therapy resistance. CONCLUSION Our results revealed the significant involvement of GPX1 in AML immunosuppression via and provided a prognostic signature for AML patients.
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MESH Headings
- Aged
- Antigens, Differentiation/genetics
- B7 Antigens/genetics
- Female
- Gene Expression Regulation, Leukemic/genetics
- Glutathione Peroxidase/genetics
- Hepatitis A Virus Cellular Receptor 2
- Humans
- Immune Tolerance/genetics
- Immunosuppression Therapy
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/immunology
- Leukemia, Myeloid, Acute/pathology
- Male
- Middle Aged
- Myeloid-Derived Suppressor Cells/immunology
- Myeloid-Derived Suppressor Cells/pathology
- Prognosis
- Receptors, CCR2/genetics
- Receptors, Immunologic/genetics
- Receptors, Notch/genetics
- Risk Factors
- Syk Kinase/genetics
- Tumor Microenvironment/immunology
- Wnt Signaling Pathway/genetics
- p21-Activated Kinases/genetics
- Glutathione Peroxidase GPX1
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Affiliation(s)
- Jian Zhang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Yuhui Peng
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Yan He
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Yan Xiao
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Qinrong Wang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Yan Zhao
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Tin Zhang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Changxue Wu
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Yuan Xie
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Jianjiang Zhou
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Wenfeng Yu
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Deqin Lu
- Department of Pathophysiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Hua Bai
- Medical Laboratory Center, the Third Affiliated Hospital of Guizhou Medical University, Duyun 558000, Guizhou, China.
| | - Tenxiang Chen
- Department of Pathophysiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guiyang 550004, Guizhou, China.
| | - Penxiang Guo
- Department of Hematology, Guizhou Provincial People's Hospital, Guizhou University, Guiyang 550002, Guizhou, China.
| | - Qifang Zhang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, School of Basic Medical Science, Guizhou Medical University, Guiyang 550004, Guizhou, China.
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18
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Zajta E, Csonka K, Tóth A, Tiszlavicz L, Németh T, Orosz A, Novák Á, Csikós M, Vágvölgyi C, Mócsai A, Gácser A. Signaling through Syk or CARD9 Mediates Species-Specific Anti- Candida Protection in Bone Marrow Chimeric Mice. mBio 2021; 12:e0160821. [PMID: 34465030 PMCID: PMC8406149 DOI: 10.1128/mbio.01608-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/05/2021] [Indexed: 01/12/2023] Open
Abstract
The spleen tyrosine kinase (Syk) and the downstream adaptor protein CARD9 are crucial signaling molecules in antimicrobial immunity. Candida parapsilosis is an emerging fungal pathogen with a high incidence in neonates, while Candida albicans is the most common agent of candidiasis. While signaling through Syk/CARD9 promotes protective host mechanisms in response to C. albicans, its function in immunity against C. parapsilosis remains unclear. Here, we generated Syk-/- and CARD9-/- bone marrow chimeric mice to study the role of Syk/CARD9 signaling in immune responses to C. parapsilosis compared to C. albicans. We demonstrate various functions of this pathway (e.g., phagocytosis, phagosome acidification, and killing) in Candida-challenged, bone marrow-derived macrophages with differential involvement of Syk and CARD9 along with species-specific differences in cytokine production. We report that Syk-/- or CARD9-/- chimeras rapidly display high susceptibility to C. albicans, while C. parapsilosis infection exacerbates over a prolonged period in these animals. Thus, our results establish that Syk and CARD9 contribute to systemic resistance to C. parapsilosis and C. albicans differently. Additionally, we confirm prior studies but also detail new insights into the fundamental roles of both proteins in immunity against C. albicans. Our data further suggest that Syk has a more prominent influence on anti-Candida immunity than CARD9. Therefore, this study reinforces the Syk/CARD9 pathway as a potential target for anti-Candida immune therapy. IMPORTANCE While C. albicans remains the most clinically significant Candida species, C. parapsilosis is an emerging pathogen with increased affinity to neonates. Syk/CARD9 signaling is crucial in immunity to C. albicans, but its role in in vivo responses to other pathogenic Candida species is largely unexplored. We used mice with hematopoietic systems deficient in Syk or CARD9 to comparatively study the function of these proteins in anti-Candida immunity. We demonstrate that Syk/CARD9 signaling has a protective role against C. parapsilosis differently than against C. albicans. Thus, this study is the first to reveal that Syk can exert immune responses during systemic Candida infections species specifically. Additionally, Syk-dependent immunity to a nonalbicans Candida species in an in vivo murine model has not been reported previously. We highlight that the contribution of Syk and CARD9 to fungal infections are not identical and underline this pathway as a promising immune-therapeutic target to fight Candida infections.
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Affiliation(s)
- Erik Zajta
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Katalin Csonka
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Adél Tóth
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | | | - Tamás Németh
- Department of Physiology, Semmelweis University School of Medicine, Budapest, Hungary
- Department of Rheumatology and Clinical Immunology, Semmelweis University, Budapest, Hungary
| | - Anita Orosz
- Department of Physiology, Semmelweis University School of Medicine, Budapest, Hungary
| | - Ádám Novák
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Máté Csikós
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Csaba Vágvölgyi
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Attila Mócsai
- Department of Physiology, Semmelweis University School of Medicine, Budapest, Hungary
| | - Attila Gácser
- HCEMM-USZ Fungal Pathogens Research Group, Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
- MTA-SZTE “Lendület” Mycobiome Research Group, University of Szeged, Szeged, Hungary
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19
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Trivedi A, Tercovich KG, Casbon AJ, Raber J, Lowell C, Noble-Haeusslein LJ. Neutrophil-specific deletion of Syk results in recruitment-independent stabilization of the barrier and a long-term improvement in cognitive function after traumatic injury to the developing brain. Neurobiol Dis 2021; 157:105430. [PMID: 34153467 DOI: 10.1016/j.nbd.2021.105430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 05/14/2021] [Accepted: 06/16/2021] [Indexed: 02/06/2023] Open
Abstract
While traumatic brain injury (TBI) is the leading cause of death and disability in children, we have yet to identify those pathogenic events that determine the extent of recovery. Neutrophils are best known as "first responders" to sites of infection and trauma where they become fully activated, killing pathogens via proteases that are released during degranulation. However, this activational state may generate substantial toxicity in the young brain after TBI that is partially due to developmentally regulated inadequate antioxidant reserves. Neutrophil degranulation is triggered via a downstream signaling pathway that is dependent on spleen tyrosine kinase (Syk). To test the hypothesis that the activational state of neutrophils is a determinant of early pathogenesis and long-term recovery, we compared young, brain-injured conditional knockouts of Syk (sykf/fMRP8-cre+) to congenic littermates (sykf/f). Based upon flow cytometry, there was an extended recruitment of distinct leukocyte subsets, including Ly6G+/Ly6C- and Ly6G+/Ly6Cint, over the first several weeks post-injury which was similar between genotypes. Subsequent assessment of the acutely injured brain revealed a reduction in blood-brain barrier disruption to both high and low molecular weight dextrans and reactive oxygen species in sykf/fMRP8-cre+ mice compared to congenic littermates, and this was associated with greater preservation of claudin 5 and neuronal integrity, as determined by Western blot analyses. At adulthood, motor learning was less affected in brain-injured sykf/fMRP8-cre+ mice as compared to sykf/f mice. Performance in the Morris Water Maze revealed a robust improvement in hippocampal-dependent acquisition and short and long-term spatial memory retention in sykf/fMRP8-cre+ mice. Subsequent analyses of swim path lengths during hidden platform training and probe trials showed greater thigmotaxis in brain-injured sykf/f mice than sham sykf/f mice and injured sykf/fMRP8-cre+ mice. Our results establish the first mechanistic link between the activation state of neutrophils and long-term functional recovery after traumatic injury to the developing brain. These results also highlight Syk kinase as a novel therapeutic target that could be further developed for the brain-injured child.
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Affiliation(s)
- Alpa Trivedi
- Departments of Laboratory Medicine, University of California San Francisco, San Francisco, CA 94143, USA; Departments of Neurological Surgery, University of California San Francisco, San Francisco, CA 94143, USA.
| | - Kayleen G Tercovich
- Departments of Neurological Surgery, University of California San Francisco, San Francisco, CA 94143, USA
| | - Amy Jo Casbon
- Departments of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA
| | - Jacob Raber
- Departments of Behavioral Neuroscience, Neurology, and Radiation Medicine, ONPRC, Oregon Health & Science University, Portland, OR 97239, USA; Division of Neuroscience, ONPRC, Oregon Health & Science University, Portland, OR 97239, USA.
| | - Clifford Lowell
- Departments of Laboratory Medicine, University of California San Francisco, San Francisco, CA 94143, USA.
| | - Linda J Noble-Haeusslein
- Departments of Neurological Surgery, University of California San Francisco, San Francisco, CA 94143, USA; Departments of Neurology and Psychology, The Dell Medical School and the College of Liberal Arts, University of Texas, Austin, TX 78712, USA.
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20
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Gou S, Wang S, Liu W, Chen G, Zhang D, Du J, Yan Z, Wang H, Zhai W, Sui X, Wu Y, Qi Y, Gao Y. Adjuvant-free peptide vaccine targeting Clec9a on dendritic cells can induce robust antitumor immune response through Syk/IL-21 axis. Theranostics 2021; 11:7308-7321. [PMID: 34158852 PMCID: PMC8210616 DOI: 10.7150/thno.56406] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 05/02/2021] [Indexed: 11/30/2022] Open
Abstract
Dendritic cells (DCs) can process the antigens of cancer vaccine and thus stimulate the CD8+ T cells to recognize and kill the tumor cells that express these antigens. However, lack of promising carriers for presenting the antigens to DCs is one of the main barriers to the development of clinically effective cancer vaccines. Another limitation is the risk of inflammatory side effects induced by the adjuvants. It is still unclear how we can develop ideal adjuvant-free DC vaccine carriers without adjuvants. Methods: A 12-mer peptide carrier (CBP-12) with high affinity for Clec9a expressed on DCs was developed using an in silico rational optimization method. The therapeutic effects of the adjuvant-free vaccine comprising CBP-12 and exogenous or endogenous antigenic peptides were investigated in terms of antigen cross-presentation efficacy, specific cytotoxic T lymphocyte response, and antitumor activity. We also explored the mechanism involved in the antitumor effects of the adjuvant-free CBP-12 vaccine. Finally, we assessed the effects of the CBP-12 conjugated peptide vaccine combined with radiotherapy. Results: Here, we developed CBP-12 as a vaccine carrier that enhanced the uptake and cross-presentation of the antigens, thus inducing strong CD8+ T cell responses and antitumor effects in both anti-PD-1-responsive (B16-OVA) and -resistant (B16) models, even in adjuvant-free conditions. CBP-12 bound to and activated Clec9a, thereby stimulating Clec9a+ DC to product IL-21, but not IL-12 by activating of Syk. The antitumor effects of the CBP-12 conjugated peptide vaccines could be blocked by an IL-21 neutralizing antibody. We also observed the synergistic antitumor effects of the CBP-12 conjugated peptide vaccine combined with radiotherapy. Conclusions: CBP-12 could serve as an adjuvant-free peptide vaccine carrier for cancer immunotherapy.
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MESH Headings
- Animals
- Cancer Vaccines/immunology
- Cancer Vaccines/pharmacology
- Dendritic Cells/immunology
- Drug Delivery Systems
- Female
- Interleukins/genetics
- Interleukins/immunology
- Lectins, C-Type/genetics
- Lectins, C-Type/immunology
- Melanoma, Experimental/genetics
- Melanoma, Experimental/immunology
- Melanoma, Experimental/therapy
- Mice
- Mice, Knockout
- Peptides/immunology
- Peptides/pharmacology
- Receptors, Immunologic/genetics
- Receptors, Immunologic/immunology
- Signal Transduction/drug effects
- Signal Transduction/genetics
- Signal Transduction/immunology
- Syk Kinase/genetics
- Syk Kinase/immunology
- Vaccines, Subunit/immunology
- Vaccines, Subunit/pharmacology
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Affiliation(s)
- Shanshan Gou
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Shuai Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Wenwen Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Guanyu Chen
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Dongyang Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jiangfeng Du
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Zhongyi Yan
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Hongfei Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Wenjie Zhai
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xinghua Sui
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Yahong Wu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yuanming Qi
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yanfeng Gao
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
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21
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Wang L, Aschenbrenner D, Zeng Z, Cao X, Mayr D, Mehta M, Capitani M, Warner N, Pan J, Wang L, Li Q, Zuo T, Cohen-Kedar S, Lu J, Ardy RC, Mulder DJ, Dissanayake D, Peng K, Huang Z, Li X, Wang Y, Wang X, Li S, Bullers S, Gammage AN, Warnatz K, Schiefer AI, Krivan G, Goda V, Kahr WHA, Lemaire M, Lu CY, Siddiqui I, Surette MG, Kotlarz D, Engelhardt KR, Griffin HR, Rottapel R, Decaluwe H, Laxer RM, Proietti M, Hambleton S, Elcombe S, Guo CH, Grimbacher B, Dotan I, Ng SC, Freeman SA, Snapper SB, Klein C, Boztug K, Huang Y, Li D, Uhlig HH, Muise AM. Gain-of-function variants in SYK cause immune dysregulation and systemic inflammation in humans and mice. Nat Genet 2021; 53:500-510. [PMID: 33782605 PMCID: PMC8245161 DOI: 10.1038/s41588-021-00803-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 01/27/2021] [Indexed: 12/15/2022]
Abstract
Spleen tyrosine kinase (SYK) is a critical immune signaling molecule and therapeutic target. We identified damaging monoallelic SYK variants in six patients with immune deficiency, multi-organ inflammatory disease such as colitis, arthritis and dermatitis, and diffuse large B cell lymphomas. The SYK variants increased phosphorylation and enhanced downstream signaling, indicating gain of function. A knock-in (SYK-Ser544Tyr) mouse model of a patient variant (p.Ser550Tyr) recapitulated aspects of the human disease that could be partially treated with a SYK inhibitor or transplantation of bone marrow from wild-type mice. Our studies demonstrate that SYK gain-of-function variants result in a potentially treatable form of inflammatory disease.
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Affiliation(s)
- Lin Wang
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children's Hospital of Fudan University, Shanghai, China
- SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Dominik Aschenbrenner
- Translational Gastroenterology Unit and Biomedical Research Centre, Nuffield Department of Clinical Medicine, Experimental Medicine Division, University of Oxford, Oxford, UK
- Department of Pediatrics, John Radcliffe Hospital, Oxford, UK
| | - Zhiyang Zeng
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiya Cao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Daniel Mayr
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria
| | - Meera Mehta
- SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Melania Capitani
- Translational Gastroenterology Unit and Biomedical Research Centre, Nuffield Department of Clinical Medicine, Experimental Medicine Division, University of Oxford, Oxford, UK
- Department of Pediatrics, John Radcliffe Hospital, Oxford, UK
| | - Neil Warner
- SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jie Pan
- SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Liren Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, East China Normal University, Shanghai, China
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Qi Li
- SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Tao Zuo
- Center for Gut Microbiota Research, The Chinese University of Hong Kong, Hong Kong, China
- Institute of Digestive Disease, Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Sarit Cohen-Kedar
- Felsenstein Medical Research Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Division of Gastroenterology, Rabin Medical Center, Petah Tikva, Israel
| | - Jiawei Lu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, East China Normal University, Shanghai, China
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Rico Chandra Ardy
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria
| | - Daniel J Mulder
- SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Dilan Dissanayake
- Division of Rheumatology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Kaiyue Peng
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children's Hospital of Fudan University, Shanghai, China
| | - Zhiheng Huang
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children's Hospital of Fudan University, Shanghai, China
| | - Xiaoqin Li
- Department of Gastroenterology, Zhengzhou Children's Hospital, Zhengzhou, China
| | - Yuesheng Wang
- Department of Gastroenterology, Zhengzhou Children's Hospital, Zhengzhou, China
| | - Xiaobing Wang
- Neonate Department, Sanmenxia Central Hospital, Sanmenxia, China
| | - Shuchao Li
- Department of Pediatrics, Lushi County Renmin Hospital, Sanmenxia, China
| | - Samuel Bullers
- Translational Gastroenterology Unit and Biomedical Research Centre, Nuffield Department of Clinical Medicine, Experimental Medicine Division, University of Oxford, Oxford, UK
- Department of Pediatrics, John Radcliffe Hospital, Oxford, UK
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Anís N Gammage
- Translational Gastroenterology Unit and Biomedical Research Centre, Nuffield Department of Clinical Medicine, Experimental Medicine Division, University of Oxford, Oxford, UK
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Klaus Warnatz
- Department of Rheumatology and Clinical Immunology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Center for Chronic Immunodeficiency (CCI), Medical Center, University of Freiburg, Freiburg, Germany
| | - Ana-Iris Schiefer
- Department of Clinical Pathology, Medical University Vienna, Vienna, Austria
| | - Gergely Krivan
- National Institute of Hematology and Infectious Diseases, Department for Pediatric Hematology and Hemopoietic Stem Cell Transplantation, Central Hospital of Southern Pest, Budapest, Hungary
| | - Vera Goda
- National Institute of Hematology and Infectious Diseases, Department for Pediatric Hematology and Hemopoietic Stem Cell Transplantation, Central Hospital of Southern Pest, Budapest, Hungary
| | - Walter H A Kahr
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
- Division of Haematology/Oncology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada
- Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mathieu Lemaire
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
- Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Nephrology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Chien-Yi Lu
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Iram Siddiqui
- Division of Pathology, Department of Pediatric Laboratory Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Michael G Surette
- Department of Medicine, Farncombe Family Digestion Health Institute, McMaster University, Hamilton, Ontario, Canada
| | - Daniel Kotlarz
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Karin R Engelhardt
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Helen R Griffin
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Robert Rottapel
- Princess Margaret Cancer Centre, University Health Network, Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
- Division of Rheumatology, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Hélène Decaluwe
- Division of Immunology and Rheumatology, Department of Pediatrics, Sainte-Justine University Hospital, Montreal, Quebec, Canada
- Cytokine and Adaptive Immunity Laboratory, Sainte-Justine University Hospital Research Center, Université de Montréal, Montreal, Quebec, Canada
| | - Ronald M Laxer
- Division of Rheumatology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Michele Proietti
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Sophie Hambleton
- Faculty of Medical Sciences, 100KGP England, Newcastle University, Newcastle upon Tyne, UK
| | - Suzanne Elcombe
- Department of Immunology, Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Cong-Hui Guo
- SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Bodo Grimbacher
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency (CCI), Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- DZIF - German Center for Infection Research, Satellite Center Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- CIBSS - Centre for Integrative Biological Signalling Studies, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- RESIST - Cluster of Excellence 2155 to Hanover Medical School, Satellite Center Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Iris Dotan
- Division of Gastroenterology, Rabin Medical Center, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Siew C Ng
- Center for Gut Microbiota Research, The Chinese University of Hong Kong, Hong Kong, China
- Institute of Digestive Disease, Li Ka Shing Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Spencer A Freeman
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
- Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Scott B Snapper
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Boston, MA, USA
| | - Christoph Klein
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Kaan Boztug
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria
- St. Anna Children's Hospital, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Ying Huang
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children's Hospital of Fudan University, Shanghai, China.
| | - Dali Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.
| | - Holm H Uhlig
- Translational Gastroenterology Unit and Biomedical Research Centre, Nuffield Department of Clinical Medicine, Experimental Medicine Division, University of Oxford, Oxford, UK
- Department of Pediatrics, John Radcliffe Hospital, Oxford, UK
| | - Aleixo M Muise
- SickKids Inflammatory Bowel Disease Center, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada.
- Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada.
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada.
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Buffard M, Naldi A, Freiss G, Deckert M, Radulescu O, Coopman PJ, Larive RM. Comparison of SYK Signaling Networks Reveals the Potential Molecular Determinants of Its Tumor-Promoting and Suppressing Functions. Biomolecules 2021; 11:biom11020308. [PMID: 33670716 PMCID: PMC7923165 DOI: 10.3390/biom11020308] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/10/2021] [Accepted: 02/14/2021] [Indexed: 01/18/2023] Open
Abstract
Spleen tyrosine kinase (SYK) can behave as an oncogene or a tumor suppressor, depending on the cell and tissue type. As pharmacological SYK inhibitors are currently evaluated in clinical trials, it is important to gain more information on the molecular mechanisms underpinning these opposite roles. To this aim, we reconstructed and compared its signaling networks using phosphoproteomic data from breast cancer and Burkitt lymphoma cell lines where SYK behaves as a tumor suppressor and promoter. Bioinformatic analyses allowed for unveiling the main differences in signaling pathways, network topology and signal propagation from SYK to its potential effectors. In breast cancer cells, the SYK target-enriched signaling pathways included intercellular adhesion and Hippo signaling components that are often linked to tumor suppression. In Burkitt lymphoma cells, the SYK target-enriched signaling pathways included molecules that could play a role in SYK pro-oncogenic function in B-cell lymphomas. Several protein interactions were profoundly rewired in the breast cancer network compared with the Burkitt lymphoma network. These data demonstrate that proteomic profiling combined with mathematical network modeling allows untangling complex pathway interplays and revealing difficult to discern interactions among the SYK pathways that positively and negatively affect tumor formation and progression.
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Affiliation(s)
- Marion Buffard
- IRCM, Université de Montpellier, ICM, INSERM, F-34298 Montpellier, France; (M.B.); (G.F.); (P.J.C.)
- LPHI, Université de Montpellier, CNRS, F-34095 Montpellier, France;
| | - Aurélien Naldi
- Institut de Biologie de l'ENS (IBENS), Département de Biologie, École Normale Supérieure, CNRS, INSERM, Université PSL, F-75005 Paris, France;
- Lifeware Group, Inria Saclay-île de France, F-91120 Palaiseau, France
| | - Gilles Freiss
- IRCM, Université de Montpellier, ICM, INSERM, F-34298 Montpellier, France; (M.B.); (G.F.); (P.J.C.)
| | - Marcel Deckert
- C3M, Université Côte d'Azur, INSERM, équipe «Microenvironnement, Signalisation et Cancer», F-06204 Nice, France;
| | - Ovidiu Radulescu
- LPHI, Université de Montpellier, CNRS, F-34095 Montpellier, France;
| | - Peter J. Coopman
- IRCM, Université de Montpellier, ICM, INSERM, F-34298 Montpellier, France; (M.B.); (G.F.); (P.J.C.)
- CNRS—Centre National de la Recherche Scientifique, 1919 Route de Mende, F-34293 Montpellier, France
| | - Romain M. Larive
- IRCM, Université de Montpellier, ICM, INSERM, F-34298 Montpellier, France; (M.B.); (G.F.); (P.J.C.)
- IBMM, Université Montpellier, CNRS, ENSCM, F-34093 Montpellier, France
- Correspondence: ; Tel.: +33-467-61-24-30; Fax: +33-467-61-37-87
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Makhoul S, Kumm E, Zhang P, Walter U, Jurk K. The Serine/Threonine Protein Phosphatase 2A (PP2A) Regulates Syk Activity in Human Platelets. Int J Mol Sci 2020; 21:ijms21238939. [PMID: 33255747 PMCID: PMC7728356 DOI: 10.3390/ijms21238939] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/14/2020] [Accepted: 11/19/2020] [Indexed: 12/21/2022] Open
Abstract
Distinct membrane receptors activate platelets by Src-family-kinase (SFK)-, immunoreceptor-tyrosine-based-activation-motif (ITAM)-dependent stimulation of spleen tyrosine kinase (Syk). Recently, we reported that platelet activation via glycoprotein (GP) VI or GPIbα stimulated the well-established Syk tyrosine (Y)-phosphorylation, but also stoichiometric, transient protein kinase C (PKC)-mediated Syk serine(S)297 phosphorylation in the regulatory interdomain-B, suggesting possible feedback inhibition. The transient nature of Syk S297 phosphorylation indicated the presence of an unknown Syk pS297 protein phosphatase. In this study, we hypothesize that the S-protein phosphatase 2A (PP2A) is responsible for Syk pS297 dephosphorylation, thereby affecting Syk Y-phosphorylation and activity in human washed platelets. Using immunoblotting, we show that specific inhibition of PP2A by okadaic acid (OA) alone leads to stoichiometric Syk S297 phosphorylation, as analyzed by Zn2+-Phos-tag gels, without affecting Syk Y-phosphorylation. Pharmacological inhibition of Syk by PRT060318 or PKC by GF109203X only minimally reduced OA-induced Syk S297 phosphorylation. PP2A inhibition by OA preceding GPVI-mediated platelet activation induced by convulxin extended Syk S297 phosphorylation but inhibited Syk Y-phosphorylation. Our data demonstrate a novel biochemical and functional link between the S-protein phosphatase PP2A and the Y-protein kinase Syk in human platelets, and suggest that PP2A represents a potential enhancer of GPVI-mediated Syk activity caused by Syk pS297 dephosphorylation.
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Affiliation(s)
- Stephanie Makhoul
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz of the Johannes Gutenberg University Mainz, D-55131 Mainz, Germany; (S.M.); (E.K.); (P.Z.)
| | - Elena Kumm
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz of the Johannes Gutenberg University Mainz, D-55131 Mainz, Germany; (S.M.); (E.K.); (P.Z.)
| | - Pengyu Zhang
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz of the Johannes Gutenberg University Mainz, D-55131 Mainz, Germany; (S.M.); (E.K.); (P.Z.)
- Leibniz-Institut für Analytische Wissenschaften, D-44227 Dortmund, Germany
| | - Ulrich Walter
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz of the Johannes Gutenberg University Mainz, D-55131 Mainz, Germany; (S.M.); (E.K.); (P.Z.)
- Correspondence: (U.W.); (K.J.)
| | - Kerstin Jurk
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz of the Johannes Gutenberg University Mainz, D-55131 Mainz, Germany; (S.M.); (E.K.); (P.Z.)
- Correspondence: (U.W.); (K.J.)
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24
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Abstract
Background Increased attention is being paid to the relationship between the immune status of the tumor microenvironment and tumor prognosis. The application of immune scoring in evaluating the clinical prognosis of liver cancer patients has not yet been explored. This study sought to clarify the association between immune score and prognosis and construct a clinical nomogram to predict the survival of patients with liver cancer. Methods A total of 346 patients were included in our analysis datasets downloaded from The Cancer Genome Atlas (TCGA) dataset. A Cox proportional-hazards regression model was used to estimate the adjusted hazard ratios (HRs). A nomogram was built based on the results of multivariate analysis and was subjected to bootstrap internal validation. The predictive accuracy and discriminative ability were measured by the concordance index (C-index) and the calibration curve. Through the functional analysis of differential expression of genes with different immune scores, the target genes were screened out. Results In comparison with patients with low immune scores, those with intermediate and high immune scores had significantly improved survival time [HR and 95% confidence interval (CI): 0.54 (0.30–0.97) and 0.51 (0.27–0.97), respectively]. The C-index for survival time prediction was 0.66 (95% CI: 0.60–0.71). The calibration plot for the probability of survival at three or five years showed good agreement between prediction by the nomogram and actual observations. The top 10 hub genes were CXCL8(chemokine (C-X-C motif) ligand 8), SYK(spleen tyrosine kinase), CXCL12(chemokine (C-X-C motif) ligand 12), CXCL10 (chemokine (C-X-C motif) ligand10), CXCL1(chemokine (C-X-C motif) ligand1), CCL5(chemokine (C-C motif) ligand 5), CCL20(chemokine (C-C motif) ligand 20), LCK, CXCL11(chemokine (C-X-C motif) ligand 11), CCR5(chemokine (C-C motif) receptor 5). More importantly, we found that the high expression of CXCL8 and CXCL1 were related to the prognosis. Conclusions High and/or intermediate immune scores are significantly correlated with better survival time in patients with liver cancer. Moreover, nomograms for predicting prognosis may help to estimate the survival of patients. We also propose that CXCL8 and CXCL1 may be a potential therapeutic target for liver cancer treatment.
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Affiliation(s)
- Qinyan Shen
- Department of Surgical Oncology, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, Zhejiang, China
- * E-mail:
| | - Guinv Hu
- Department of Surgical Oncology, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, Zhejiang, China
| | - JinZhong Wu
- Department of Surgical Oncology, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, Zhejiang, China
| | - Liting Lv
- Department of Surgical Oncology, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, Zhejiang, China
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25
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Negoro PE, Xu S, Dagher Z, Hopke A, Reedy JL, Feldman MB, Khan NS, Viens AL, Alexander NJ, Atallah NJ, Scherer AK, Dutko RA, Jeffery J, Kernien JF, Fites JS, Nett JE, Klein BS, Vyas JM, Irimia D, Sykes DB, Mansour MK. Spleen Tyrosine Kinase Is a Critical Regulator of Neutrophil Responses to Candida Species. mBio 2020; 11:e02043-19. [PMID: 32398316 PMCID: PMC7218286 DOI: 10.1128/mbio.02043-19] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 02/11/2020] [Indexed: 12/13/2022] Open
Abstract
Invasive fungal infections constitute a lethal threat, with patient mortality as high as 90%. The incidence of invasive fungal infections is increasing, especially in the setting of patients receiving immunomodulatory agents, chemotherapy, or immunosuppressive medications following solid-organ or bone marrow transplantation. In addition, inhibitors of spleen tyrosine kinase (Syk) have been recently developed for the treatment of patients with refractory autoimmune and hematologic indications. Neutrophils are the initial innate cellular responders to many types of pathogens, including invasive fungi. A central process governing neutrophil recognition of fungi is through lectin binding receptors, many of which rely on Syk for cellular activation. We previously demonstrated that Syk activation is essential for cellular activation, phagosomal maturation, and elimination of phagocytosed fungal pathogens in macrophages. Here, we used combined genetic and chemical inhibitor approaches to evaluate the importance of Syk in the response of neutrophils to Candida species. We took advantage of a Cas9-expressing neutrophil progenitor cell line to generate isogenic wild-type and Syk-deficient neutrophils. Syk-deficient neutrophils are unable to control the human pathogens Candida albicans, Candida glabrata, and Candida auris Neutrophil responses to Candida species, including the production of reactive oxygen species and of cytokines such as tumor necrosis factor alpha (TNF-α), the formation of neutrophil extracellular traps (NETs), phagocytosis, and neutrophil swarming, appear to be critically dependent on Syk. These results demonstrate an essential role for Syk in neutrophil responses to Candida species and raise concern for increased fungal infections with the development of Syk-modulating therapeutics.IMPORTANCE Neutrophils are recognized to represent significant immune cell mediators for the clearance and elimination of the human-pathogenic fungal pathogen Candida The sensing of fungi by innate cells is performed, in part, through lectin receptor recognition of cell wall components and downstream cellular activation by signaling components, including spleen tyrosine kinase (Syk). While the essential role of Syk in macrophages and dendritic cells is clear, there remains uncertainty with respect to its contribution in neutrophils. In this study, we demonstrated that Syk is critical for multiple cellular functions in neutrophils responding to major human-pathogenic Candida species. These data not only demonstrate the vital nature of Syk with respect to the control of fungi by neutrophils but also warn of the potential infectious complications arising from the recent clinical development of novel Syk inhibitors for hematologic and autoimmune disorders.
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Affiliation(s)
- Paige E Negoro
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Shuying Xu
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Zeina Dagher
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Alex Hopke
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Jennifer L Reedy
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Michael B Feldman
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Nida S Khan
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Adam L Viens
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Natalie J Alexander
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Natalie J Atallah
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Allison K Scherer
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Richard A Dutko
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jane Jeffery
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - John F Kernien
- Department of Medicine, University of Wisconsin-Madison, Madison Wisconsin, USA
| | - J Scott Fites
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Jeniel E Nett
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
- Department of Medicine, University of Wisconsin-Madison, Madison Wisconsin, USA
| | - Bruce S Klein
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
- Department of Medicine, University of Wisconsin-Madison, Madison Wisconsin, USA
| | - Jatin M Vyas
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Daniel Irimia
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - David B Sykes
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Michael K Mansour
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
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26
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Munshi M, Liu X, Chen JG, Xu L, Tsakmaklis N, Demos MG, Kofides A, Guerrera ML, Jimenez C, Chan GG, Hunter ZR, Palomba ML, Argyropoulos KV, Meid K, Keezer A, Gustine J, Dubeau T, Castillo JJ, Patterson CJ, Wang J, Buhrlage SJ, Gray NS, Treon SP, Yang G. SYK is activated by mutated MYD88 and drives pro-survival signaling in MYD88 driven B-cell lymphomas. Blood Cancer J 2020; 10:12. [PMID: 32005797 PMCID: PMC6994488 DOI: 10.1038/s41408-020-0277-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 12/30/2019] [Accepted: 01/13/2020] [Indexed: 12/27/2022] Open
Abstract
Activating MYD88 mutations promote pro-survival signaling through BTK and HCK, both targets of ibrutinib. Despite high response rates, complete responses to ibrutinib are lacking, and other MYD88 triggered pro-survival pathways may contribute to primary drug resistance. B-cell receptor (BCR) signaling has been observed in lymphomas driven by mutated MYD88, even without activating the BCR pathway mutations. We identified activated SYK (p-SYK), a component of BCR in complex with MYD88 in MYD88-mutated WM and ABC DLBCL lymphoma cells. Confocal microscopy confirmed co-localization of MYD88 with SYK in MYD88-mutated cells. Knockdown of MYD88 or use of a MYD88 signaling inhibitor abrogated SYK activation, while expression of mutated but not wild-type MYD88 amplified p-SYK in MYD88-mutated and wild-type lymphoma cells. Knockdown of SYK or use of inhibitors targeting SYK blocked p-STAT3 and p-AKT signaling in MYD88-mutated cells. Cell viability analysis showed that combining ibrutinib and SYK inhibitors triggered synthetic killing of MYD88-mutated lymphoma cells. Our findings extend the spectrum of mutated MYD88 pro-survival signaling to include SYK directed BCR cross talk in MYD88-mutated lymphomas. Targeting SYK in combination with ibrutinib produces synthetic lethality, providing a framework for the clinical investigation of ibrutinib with SYK inhibitors in MYD88-mutated lymphomas.
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Affiliation(s)
- Manit Munshi
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Xia Liu
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Jiaji G Chen
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Lian Xu
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Nickolas Tsakmaklis
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Maria G Demos
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Amanda Kofides
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Maria Luisa Guerrera
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Cristina Jimenez
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Gloria G Chan
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Zachary R Hunter
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
- Department of Medical Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - M Lia Palomba
- Lymphoma Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Kirsten Meid
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Andrew Keezer
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Joshua Gustine
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Toni Dubeau
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
- Department of Medical Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Jorge J Castillo
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
- Department of Medical Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Christopher J Patterson
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Jinhua Wang
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Sara J Buhrlage
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Nathanael S Gray
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Steven P Treon
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA.
- Department of Medical Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA.
| | - Guang Yang
- Bing Center for Waldenstrom's Macroglobulinemia, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
- Department of Medical Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
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Kim MK, Kim B, Kwon JO, Song MK, Jung S, Lee ZH, Kim HH. ST5 Positively Regulates Osteoclastogenesis via Src/Syk/calcium Signaling Pathways. Mol Cells 2019; 42:810-819. [PMID: 31707778 PMCID: PMC6883977 DOI: 10.14348/molcells.2019.0189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/24/2019] [Accepted: 09/25/2019] [Indexed: 02/06/2023] Open
Abstract
For physiological or pathological understanding of bone disease caused by abnormal behavior of osteoclasts (OCs), functional studies of molecules that regulate the generation and action of OCs are required. In a microarray approach, we found the suppression of tumorigenicity 5 (ST5) gene is upregulated by receptor activator of nuclear factor-κB ligand (RANKL), the OC differentiation factor. Although the roles of ST5 in cancer and β-cells have been reported, the function of ST5 in bone cells has not yet been investigated. Knockdown of ST5 by siRNA reduced OC differentiation from primary precursors. Moreover, ST5 downregulation decreased expression of NFATc1, a key transcription factor for osteoclastogenesis. In contrast, overexpression of ST5 resulted in the opposite phenotype of ST5 knockdown. In immunocytochemistry experiments, the ST5 protein is colocalized with Src in RANKL-committed cells. In addition, ST5 enhanced activation of Src and Syk, a Src substrate, in response to RANKL. ST5 reduction caused a decrease in RANKL-evoked calcium oscillation and inhibited translocation of NFATc1 into the nucleus. Taken together, these findings provide the first evidence of ST5 involvement in positive regulation of osteoclastogenesis via Src/Syk/calcium signaling.
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Affiliation(s)
- Min Kyung Kim
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Bongjun Kim
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Jun-Oh Kwon
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Min-Kyoung Song
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Suhan Jung
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Zang Hee Lee
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Hong-Hee Kim
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
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28
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Bang BR, Han KH, Seo GY, Croft M, Kang YJ. The protein tyrosine kinase SYK regulates the alternative p38 activation in liver during acute liver inflammation. Sci Rep 2019; 9:17838. [PMID: 31780731 PMCID: PMC6882802 DOI: 10.1038/s41598-019-54335-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 11/11/2019] [Indexed: 12/02/2022] Open
Abstract
Two distinct p38 signaling pathways, classical and alternative, have been identified to regulate inflammatory responses in host defense and disease development. The role of alternative p38 activation in liver inflammation is elusive, while classical p38 signaling in hepatocytes plays a role in regulating the induction of cell death in autoimmune-mediated acute liver injury. In this study, we found that a mutation of alternative p38 in mice augmented the severity of acute liver inflammation. Moreover, TNF-induced hepatocyte death was augmented by a mutation of alternative p38, suggesting that alternative p38 signaling in hepatocytes contributed more significantly to the pathology of acute liver injury. Furthermore, SYK-Vav-1 signaling regulates alternative p38 activation and the downregulation of cell death in hepatocytes. Therefore, it is suggested that alternative p38 signaling in the liver plays a critical role in the induction and subsequent pathological changes of acute liver injury. Collectively, our results imply that p38 signaling in hepatocytes plays a crucial role to prevent excessive liver injury by regulating the induction of cell death and inflammation.
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Affiliation(s)
- Bo-Ram Bang
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA, 92037, USA
- Department of Medicine, Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Kyung Ho Han
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Goo-Young Seo
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Young Jun Kang
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA, 92037, USA.
- Molecular Medicine Research Institute, Sunnyvale, CA, 94085, USA.
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29
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Abstract
Reactive oxygen species (ROS) are indispensable for determining the fate of immune cells in both physiological and pathogenic environments, thus stimulating the interest of immunologists and clinicians. B cells are essential in maintaining immune homeostasis, and studies have indicated that ROS affect the maturation, activation and differentiation of B cells by controlling the signaling molecules in various molecular pathways. In the present review, we aimed to summarize the biological properties of ROS and the mechanisms by which ROS regulate B cell signaling pathways. We propose that ROS and their mediated signal transduction can be a new approach for manipulating B cell immune functions.
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Affiliation(s)
- Hushan Zhang
- Department of Immunology, School of Basic Medical Sciences, Institute of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Luman Wang
- Department of Immunology, School of Basic Medical Sciences, Institute of Biomedical Sciences, Fudan University, Shanghai, 200032, China; Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Yiwei Chu
- Department of Immunology, School of Basic Medical Sciences, Institute of Biomedical Sciences, Fudan University, Shanghai, 200032, China; Biotherapy Research Center, Fudan University, Shanghai, 200032, China.
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30
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Yu Y, Suryo Rahmanto Y, Shen YA, Ardighieri L, Davidson B, Gaillard S, Ayhan A, Shi X, Xuan J, Wang TL, Shih IM. Spleen tyrosine kinase activity regulates epidermal growth factor receptor signaling pathway in ovarian cancer. EBioMedicine 2019; 47:184-194. [PMID: 31492560 PMCID: PMC6796592 DOI: 10.1016/j.ebiom.2019.08.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/14/2019] [Accepted: 08/23/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Spleen tyrosine kinase (SYK) is frequently upregulated in recurrent ovarian carcinomas, for which effective therapy is urgently needed. SYK phosphorylates several substrates, but their translational implications remain unclear. Here, we show that SYK interacts with EGFR and ERBB2, and directly enhances their phosphorylation. METHODS We used immunohistochemistry and immunoblotting to assess SYK and EGFR phosphorylation in ovarian serous carcinomas. Association with survival was determined by Kaplan-Meier analysis and the log-rank test. To study its role in EGFR signaling, SYK activity was modulated using a small molecule inhibitor, a syngeneic knockout, and an active kinase inducible system. We applied RNA-seq and phosphoproteomic mass spectrometry to investigate the SYK-regulated EGF-induced transcriptome and downstream substrates. FINDINGS Induced expression of constitutively active SYK130E reduced cellular response to EGFR/ERBB2 inhibitor, lapatinib. Expression of EGFRWT, but not SYK non-phosphorylatable EGFR3F mutant, resulted in paclitaxel resistance, a phenotype characteristic to SYK active ovarian cancers. In tumor xenografts, SYK inhibitor reduces phosphorylation of EGFR substrates. Compared to SYKWT cells, SYKKO cells have an attenuated EGFR/ERBB2-transcriptional activity and responsiveness to EGF-induced transcription. In ovarian cancer tissues, pSYK (Y525/526) levels showed a positive correlation with pEGFR (Y1187). Intense immunoreactivity of pSYK (Y525/526) correlated with poor overall survival in ovarian cancer patients. INTERPRETATION These findings indicate that SYK activity positively modulates the EGFR pathway, providing a biological foundation for co-targeting SYK and EGFR. FUND: Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, NIH/NCI, Ovarian Cancer Research Foundation Alliance, HERA Women's Cancer Foundation and Roseman Foundation. Funders had no role in the design of the study and collection, analysis, and interpretation of data and in writing the manuscript and eventually in the decision to submit the manuscript.
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Affiliation(s)
- Yu Yu
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD 21231, United States of America; Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD 21205, United States of America.
| | - Yohan Suryo Rahmanto
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD 21231, United States of America; Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD 21205, United States of America
| | - Yao-An Shen
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD 21231, United States of America; Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD 21205, United States of America
| | - Laura Ardighieri
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD 21205, United States of America
| | - Ben Davidson
- Department of Pathology, Oslo University Hospital and Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norwegian Radium Hospital, 0310 Oslo, Norway
| | - Stephanie Gaillard
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD 21231, United States of America
| | - Ayse Ayhan
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD 21205, United States of America; Department of Pathology, Seirei Mikatahara Hospital, Hamamatsu and Hiroshima Universities Schools of Medicine, Hamamatsu 431-3192, Japan
| | - Xu Shi
- Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Arlington, VA 22203, United States of America
| | - Jianhua Xuan
- Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Arlington, VA 22203, United States of America
| | - Tian-Li Wang
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD 21231, United States of America; Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD 21205, United States of America; Department of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD 21287, United States of America.
| | - Ie-Ming Shih
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, MD 21231, United States of America; Department of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD 21287, United States of America.
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Pandori WJ, Lima TS, Mallya S, Kao TH, Gov L, Lodoen MB. Toxoplasma gondii activates a Syk-CARD9-NF-κB signaling axis and gasdermin D-independent release of IL-1β during infection of primary human monocytes. PLoS Pathog 2019; 15:e1007923. [PMID: 31449558 PMCID: PMC6730955 DOI: 10.1371/journal.ppat.1007923] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 09/06/2019] [Accepted: 06/19/2019] [Indexed: 12/17/2022] Open
Abstract
IL-1β is a potent pro-inflammatory cytokine that promotes immunity and host defense, and its dysregulation is associated with immune pathology. Toxoplasma gondii infection of myeloid cells triggers the production and release of IL-1β; however, the mechanisms regulating this pathway, particularly in human immune cells, are incompletely understood. We have identified a novel pathway of T. gondii induction of IL-1β via a Syk-CARD9-NF-κB signaling axis in primary human peripheral blood monocytes. Syk was rapidly phosphorylated during T. gondii infection of primary monocytes, and inhibiting Syk with the pharmacological inhibitors R406 or entospletinib, or genetic ablation of Syk in THP-1 cells, reduced IL-1β release. Inhibition of Syk in primary cells or deletion of Syk in THP-1 cells decreased parasite-induced IL-1β transcripts and the production of pro-IL-1β. Furthermore, inhibition of PKCδ, CARD9/MALT-1 and IKK reduced p65 phosphorylation and pro-IL-1β production in T. gondii-infected primary monocytes, and genetic knockout of PKCδ or CARD9 in THP-1 cells also reduced pro-IL-1β protein levels and IL-1β release during T. gondii infection, indicating that Syk functions upstream of this NF-κB-dependent signaling pathway for IL-1β transcriptional activation. IL-1β release from T. gondii-infected primary human monocytes required the NLRP3-caspase-1 inflammasome, but interestingly, was independent of gasdermin D (GSDMD) cleavage and pyroptosis. Moreover, GSDMD knockout THP-1 cells released comparable amounts of IL-1β to wild-type THP-1 cells after T. gondii infection. Taken together, our data indicate that T. gondii induces a Syk-CARD9/MALT-1-NF-κB signaling pathway and activation of the NLRP3 inflammasome for the release of IL-1β in a cell death- and GSDMD-independent manner. This research expands our understanding of the molecular basis for human innate immune regulation of inflammation and host defense during parasite infection.
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Affiliation(s)
- William J. Pandori
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, California, United States of America
| | - Tatiane S. Lima
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, California, United States of America
| | - Sharmila Mallya
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, California, United States of America
| | - Tiffany H. Kao
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, California, United States of America
| | - Lanny Gov
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, California, United States of America
| | - Melissa B. Lodoen
- Department of Molecular Biology & Biochemistry and the Institute for Immunology, University of California, Irvine, California, United States of America
- * E-mail:
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Yang F, Chen F, Li L, Yan L, Badri T, Lv C, Yu D, Zhang M, Jang X, Li J, Yuan L, Wang G, Li H, Li J, Cai Y. Three Novel Players: PTK2B, SYK, and TNFRSF21 Were Identified to Be Involved in the Regulation of Bovine Mastitis Susceptibility via GWAS and Post-transcriptional Analysis. Front Immunol 2019; 10:1579. [PMID: 31447828 PMCID: PMC6691815 DOI: 10.3389/fimmu.2019.01579] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/24/2019] [Indexed: 12/25/2022] Open
Abstract
Bovine mastitis is a common inflammatory disease caused by multiple factors in early lactation or dry period. Genome wide association studies (GWAS) can provide a convenient and effective strategy for understanding the biological basis of mastitis and better prevention. 2b-RADseq is a high-throughput sequencing technique that offers a powerful method for genome-wide genetic marker development and genotyping. In this study, single nucleotide polymorphisms (SNPs) of the immune-regulated gene correlative with mastitis were screened and identified by two stage association analysis via GWAS-2b-RADseq in Chinese Holstein cows. We have screened 10,058 high quality SNPs from 7,957,920 tags and calculated their allele frequencies. Twenty-seven significant SNPs were co-labeled in two GWAS analysis models [Bayesian (P < 0.001) and Logistic regression (P < 0.01)], and only three SNPs (rs75762330, C > T, PIC = 0.2999; rs88640083, A > G, PIC = 0.1676; rs20438858, G > A, PIC = 0.3366) were annotated to immune-regulated genes (PTK2B, SYK, and TNFRSF21). Identified three SNPs are located in non-coding regions with low or moderate genetic polymorphisms. However, independent sample population validation (Case-control study) data showed that three important SNPs (rs75762330, P < 0.025, OR > 1; rs88640083, P < 0.005, OR > 1; rs20438858, P < 0.001, OR < 1) were significantly associated with clinical mastitis trait. Importantly, PTK2B and SYK expression was down-regulated in both peripheral blood leukocytes (PBLs) of clinical mastitis cows and in vitro LPS (E. coli)-stimulated bovine mammary epithelial cells, while TNFRSF21 was up-regulated. Under the same conditions, expression of Toll-like receptor 4 (TLR4), AKT1, and pro-inflammatory factors (IL-1β and IL-8) were also up-regulated. Interestingly, network analysis indicated that PTK2B and SYK are co-expressed in innate immune signaling pathway of Chinese Holstein. Taken together, these results provided strong evidence for the study of SNPs in bovine mastitis, and revealed the role of SYK, PTK2B, and TNFRSF21 in bovine mastitis susceptibility/tolerance.
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Affiliation(s)
- Fan Yang
- Anhui Provincial Key Lab of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu, China
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Fanghui Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Lili Li
- National Animal Husbandry Station, Beijing, China
| | - Li Yan
- Department of Radiation Oncology, Linyi People Hospital, Linyi, China
| | - Tarig Badri
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Chenglong Lv
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Daolun Yu
- Anhui Provincial Key Lab of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Manling Zhang
- Anhui Provincial Key Lab of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Xiaojun Jang
- Anhui Provincial Key Lab of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Jie Li
- Anhui Provincial Key Lab of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Lu Yuan
- Anhui Provincial Key Lab of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Genlin Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Honglin Li
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Jun Li
- Anhui Provincial Key Lab of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Yafei Cai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Shinde A, Hardy SD, Kim D, Akhand SS, Jolly MK, Wang WH, Anderson JC, Khodadadi RB, Brown WS, George JT, Liu S, Wan J, Levine H, Willey CD, Krusemark CJ, Geahlen RL, Wendt MK. Spleen Tyrosine Kinase-Mediated Autophagy Is Required for Epithelial-Mesenchymal Plasticity and Metastasis in Breast Cancer. Cancer Res 2019; 79:1831-1843. [PMID: 30733195 PMCID: PMC6467765 DOI: 10.1158/0008-5472.can-18-2636] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/19/2018] [Accepted: 02/04/2019] [Indexed: 12/19/2022]
Abstract
The ability of breast cancer cells to transiently transition between epithelial and mesenchymal states contributes to their metastatic potential. Therefore, driving tumor cells into a stable mesenchymal state, as opposed to complete tumor cell eradication, presents an opportunity to pharmacologically limit disease progression by promoting an asymptomatic state of dormancy. Here, we compare a reversible model of epithelial-mesenchymal transition (EMT) induced by TGFβ to a stable mesenchymal phenotype induced by chronic exposure to the ErbB kinase inhibitor lapatinib. Only cells capable of returning to an epithelial phenotype resulted in skeletal metastasis. Gene expression analyses of the two mesenchymal states indicated similar transition expression profiles. A potently downregulated gene in both datasets was spleen tyrosine kinase (SYK). In contrast to this similar diminution in mRNA, kinome analyses using a peptide array and DNA-conjugated peptide substrates showed a robust increase in SYK activity upon TGFβ-induced EMT only. SYK was present in cytoplasmic RNA processing depots known as P-bodies formed during the onset of EMT, and SYK activity was required for autophagy-mediated clearance of P-bodies during mesenchymal-epithelial transition (MET). Genetic knockout of autophagy-related 7 (ATG7) or pharmacologic inhibition of SYK activity with fostamatinib, a clinically approved inhibitor of SYK, prevented P-body clearance and MET, inhibiting metastatic tumor outgrowth. Overall, this study suggests assessment of SYK activity as a biomarker for metastatic disease and the use of fostamatinib as a means to stabilize the latency of disseminated tumor cells. SIGNIFICANCE: These findings present inhibition of spleen tyrosine kinase as a therapeutic option to limit breast cancer metastasis by promoting systemic tumor dormancy.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/8/1831/F1.large.jpg.See related commentary by Farrington and Narla, p. 1756.
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Affiliation(s)
- Aparna Shinde
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
| | - Shana D Hardy
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
| | - Dongwook Kim
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
| | - Saeed Salehin Akhand
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
| | - Mohit Kumar Jolly
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore, India
| | - Wen-Hung Wang
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
| | - Joshua C Anderson
- Department of Radiation Oncology, University of Alabama, Birmingham, Alabama
| | - Ryan B Khodadadi
- Department of Graduate Medical Education, Mayo Clinic, Rochester. Minnesota
| | - Wells S Brown
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
| | - Jason T George
- Center for Theoretical Biological Physics, Rice University, Houston, Texas
- Medical Science Training Program, Baylor College of Medicine, Houston, Texas
| | - Sheng Liu
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jun Wan
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Herbert Levine
- Center for Theoretical Biological Physics, Rice University, Houston, Texas
| | | | - Casey J Krusemark
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
| | - Robert L Geahlen
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
| | - Michael K Wendt
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana.
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana
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Martínez-López M, Iborra S, Conde-Garrosa R, Mastrangelo A, Danne C, Mann ER, Reid DM, Gaboriau-Routhiau V, Chaparro M, Lorenzo MP, Minnerup L, Saz-Leal P, Slack E, Kemp B, Gisbert JP, Dzionek A, Robinson MJ, Rupérez FJ, Cerf-Bensussan N, Brown GD, Bernardo D, LeibundGut-Landmann S, Sancho D. Microbiota Sensing by Mincle-Syk Axis in Dendritic Cells Regulates Interleukin-17 and -22 Production and Promotes Intestinal Barrier Integrity. Immunity 2019; 50:446-461.e9. [PMID: 30709742 PMCID: PMC6382412 DOI: 10.1016/j.immuni.2018.12.020] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 07/30/2018] [Accepted: 12/17/2018] [Indexed: 12/15/2022]
Abstract
Production of interleukin-17 (IL-17) and IL-22 by T helper 17 (Th17) cells and group 3 innate lymphoid cells (ILC3s) in response to the gut microbiota ensures maintenance of intestinal barrier function. Here, we examined the mechanisms whereby the immune system detects microbiota in the steady state. A Syk-kinase-coupled signaling pathway in dendritic cells (DCs) was critical for commensal-dependent production of IL-17 and IL-22 by CD4+ T cells. The Syk-coupled C-type lectin receptor Mincle detected mucosal-resident commensals in the Peyer's patches (PPs), triggered IL-6 and IL-23p19 expression, and thereby regulated function of intestinal Th17- and IL-17-secreting ILCs. Mice deficient in Mincle or with selective depletion of Syk in CD11c+ cells had impaired production of intestinal RegIIIγ and IgA and increased systemic translocation of gut microbiota. Consequently, Mincle deficiency led to liver inflammation and deregulated lipid metabolism. Thus, sensing of commensals by Mincle and Syk signaling in CD11c+ cells reinforces intestinal immune barrier and promotes host-microbiota mutualism, preventing systemic inflammation.
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Affiliation(s)
- María Martínez-López
- Immunobiology Laboratory, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid 28029, Spain
| | - Salvador Iborra
- Immunobiology Laboratory, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid 28029, Spain; Department of Immunology, School of Medicine, Universidad Complutense de Madrid, 12 de Octubre Health Research Institute (imas12), Madrid, Spain.
| | - Ruth Conde-Garrosa
- Immunobiology Laboratory, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid 28029, Spain
| | - Annalaura Mastrangelo
- Immunobiology Laboratory, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid 28029, Spain
| | - Camille Danne
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Elizabeth R Mann
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK; Manchester Collaborative Centre for Inflammation Research, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Delyth M Reid
- Medical Research Council Centre for Medical Mycology at the University of Aberdeen, Aberdeen Fungal Group, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Valérie Gaboriau-Routhiau
- INRA Micalis Institut, UMR1319, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France; INSERM UMR1163, Institut Imagine, Laboratory of Intestinal Immunity, 75015 Paris, France; Université Paris Descartes-Sorbonne Paris Cité, 75006 Paris, France
| | - Maria Chaparro
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Diego de León 62, Madrid 28006, Spain
| | - María P Lorenzo
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, Urbanización Montepríncipe, km 0, M501, Alcorcón 28925, Spain
| | | | - Paula Saz-Leal
- Immunobiology Laboratory, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid 28029, Spain
| | - Emma Slack
- Institute of Food, Nutrition, and Health, ETH Zurich, Vladimir-Prelog-Weg 4, Zürich 8093, Switzerland
| | | | - Javier P Gisbert
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Diego de León 62, Madrid 28006, Spain
| | | | | | - Francisco J Rupérez
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, Urbanización Montepríncipe, km 0, M501, Alcorcón 28925, Spain
| | - Nadine Cerf-Bensussan
- INSERM UMR1163, Institut Imagine, Laboratory of Intestinal Immunity, 75015 Paris, France; Université Paris Descartes-Sorbonne Paris Cité, 75006 Paris, France
| | - Gordon D Brown
- Medical Research Council Centre for Medical Mycology at the University of Aberdeen, Aberdeen Fungal Group, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - David Bernardo
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Diego de León 62, Madrid 28006, Spain
| | - Salomé LeibundGut-Landmann
- Section of Immunology, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 266a Zurich 8057, Switzerland
| | - David Sancho
- Immunobiology Laboratory, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid 28029, Spain.
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Abstract
In a previously published study, higher levels of spleen tyrosine kinase (Syk) were observed in recurrent post-chemotherapy ovarian cancers compared to primary tumors. Syk inhibition was found to stabilize microtubules and potentiate paclitaxel activity in cellular models of taxane-resistant ovarian cancers. We further studied the effects of Syk inhibition on paclitaxel activity in Syk(+) ovarian cancer cell models and in variants selected for taxane resistance. Syk inhibition was accomplished using RNAi and by exposure to the small molecule competitive inhibitor R406, the active metabolite of fostamatinib. Exposure to R406 or to a SYK-specific pool of siRNAs did not alter taxane activity in the OVCAR-3 cell line, which has the most Syk content in our panel of nine human ovarian cancer cell lines. However, treatment with R406 sensitised the multidrug resistant (MDR) variants MES-SA/Dx5 and SK-OV-3/TR to paclitaxel in a dose-dependent manner resulting from the inhibition of the ABCB1/P-glycoprotein (P-gp) drug transporter. These observations are Syk-independent since both MDR cell models are Syk negative. R406 modulated resistance to other known P-gp substrates, and we observed orthovanadate-sensitive ATPase stimulation resulting from treatment with R406. These data indicate that the chemo-sensitizing effect of R406 in taxane-resistant cells previously reported was not associated with Syk but resulted from the modulation of P-gp-mediated MDR.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B/antagonists & inhibitors
- ATP Binding Cassette Transporter, Subfamily B/genetics
- ATP Binding Cassette Transporter, Subfamily B/metabolism
- Adenosine Triphosphatases/metabolism
- Antineoplastic Agents/pharmacology
- Bridged-Ring Compounds/pharmacology
- Cell Line, Tumor
- Drug Resistance, Multiple/drug effects
- Drug Resistance, Multiple/genetics
- Drug Resistance, Multiple/physiology
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
- Drug Resistance, Neoplasm/physiology
- Female
- Gene Expression/drug effects
- Humans
- Neoplasm Recurrence, Local/genetics
- Neoplasm Recurrence, Local/metabolism
- Ovarian Neoplasms/drug therapy
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/metabolism
- Oxazines/pharmacology
- Paclitaxel/pharmacology
- Pyridines/pharmacology
- RNA, Small Interfering/genetics
- Syk Kinase/antagonists & inhibitors
- Syk Kinase/genetics
- Taxoids/pharmacology
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Affiliation(s)
- George E. Duran
- Department of Medicine, Division of Oncology, Stanford University School of Medicine, Stanford, California, United States of America
- * E-mail:
| | - Branimir I. Sikic
- Department of Medicine, Division of Oncology, Stanford University School of Medicine, Stanford, California, United States of America
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Huang S, Lv Z, Wen Y, Wei Y, Zhou L, Ke Y, Zhang Y, Xu Q, Li L, Guo Y, Li D, Xie C, Guo Y, Cheng J. miR-129-2-3p directly targets SYK gene and associates with the risk of ischaemic stroke in a Chinese population. J Cell Mol Med 2019; 23:167-176. [PMID: 30499219 PMCID: PMC6307781 DOI: 10.1111/jcmm.13901] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 08/16/2018] [Indexed: 02/05/2023] Open
Abstract
Spleen tyrosine kinase (SYK) gene has been identified as novel susceptibility locus for ischaemic stroke (IS) previously. However, regulation of SYK gene remains unknown in IS. In this study, we aimed to identify miRNAs that might be involved in the development of IS by targeting SYK gene. miRNAs were firstly screened by bioinformatics predicting tool. The expression levels of SYK gene were detected by qRT-PCR and western blotting, respectively, after miRNA transfection. Luciferase reporter assay was applied to investigate the direct binding between miRNAs and target gene. miRNA levels were detected by miRNA TaqMan assays in the blood cells of 270 IS patients and 270 control volunteers. Results suggest that SYK gene might be a direct target of miR-129-2-3p. The blood level of miR-129-2-3p was significantly lower in IS patients (P < 0.05), and negatively associated with the risk of IS (adjusted OR: 0.88; 95% CI: 0.80-0.98; P = 0.021) by multivariable logistic regression analysis. The blood levels of SYK gene were significantly higher in IS patients, and miR-129-2-3p expression was negatively correlated with mean platelet volume. In summary, our study suggests that miR-129-2-3p might be involved in the pathogenesis of IS through interrupting SYK expression and the platelet function, and further investigation is needed to explore the underlying mechanism.
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Affiliation(s)
- Suli Huang
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Ziquan Lv
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Ying Wen
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Yazhen Wei
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Li Zhou
- Department of School HygieneShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Yuebin Ke
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Yanwei Zhang
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Qianhui Xu
- Department of NeurologyPeople's Hospital of ShenzhenGuangdongChina
| | - Lu Li
- Research Center of Translational MedicineThe Second Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Yinsheng Guo
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Di Li
- Department of NeurologyPeople's Hospital of ShenzhenGuangdongChina
| | - Changhui Xie
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Yi Guo
- Department of NeurologyPeople's Hospital of ShenzhenGuangdongChina
| | - Jinquan Cheng
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
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Bian X, Wu L, Mu L, Yin X, Wei X, Zhong X, Yang Y, Wang J, Li Y, Guo Z, Ye J. Spleen tyrosine kinase from Nile tilapia (Oreochromis niloticus): Molecular characterization, expression pattern upon bacterial infection and the potential role in BCR signaling and inflammatory response. Fish Shellfish Immunol 2018; 82:162-172. [PMID: 30114435 DOI: 10.1016/j.fsi.2018.08.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/31/2018] [Accepted: 08/07/2018] [Indexed: 06/08/2023]
Abstract
Spleen tyrosine kinase (SYK), a member of non-receptor tyrosine kinase family, plays an important role in immune responses against pathogen infection, which is capable of activating B cells signaling pathway and regulating inflammatory response. In this study, Nile tilapia (Oreochromis niloticus) ortholog (OnSYK) was identified and characterized at expression pattern against bacterial infection, function in B cells activation pathway and inflammatory response. The cDNA of OnSYK ORF contained 1851 bp of nucleotide sequence encoding polypeptides of 616 amino acids. The deduced OnSYK protein was highly homologous to other species SYK, containing two SH2 domains and a TyrKc domain. Spatial mRNA expression analysis revealed that OnSYK had wide tissue distribution and was highly expressed in the liver. After challenge of Streptococcus agalactiae (S. agalactiae) in vivo, mRNA expression of OnSYK was significantly up-regulated in the head kidney, spleen and liver. The up-regulation of OnSYK transcript was also displayed in the head kidney and spleen leukocytes stimulation with S. agalactiae and LPS in vitro, which was confirmed at protein level in the head kidney leukocytes by FACS analysis. In addition, after induction with mouse anti-OnIgM monoclonal antibody in vitro, the expressions of OnSYK and its downstream molecules (OnLYN, OnBLNK and OnAP-1) were significantly up-regulated in the head kidney leukocytes, and pharmacological inhibition of SYK activity with inhibitor (P505-15) significantly attenuated the expressions of OnLYN, OnBLNK and OnAP-1. Moreover, upon LPS challenge, the expressions of OnSYK, OnTNF-α, OnIL-6 and OnAP-1 were also up-regulated in the head kidney monocytes/macrophages. After treatment with SYK inhibitor (BAY 61-3606), the expressions of OnTNF-α, OnIL-6 and OnAP-1 were inhibited in the LPS-challenged head kidney monocytes/macrophages. Taken together, the results of this study indicated that OnSYK, playing potential roles in BCR signaling and inflammatory response, was likely to get involved in host defense against bacterial infection in Nile tilapia.
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Affiliation(s)
- Xia Bian
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Liting Wu
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Liangliang Mu
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Xiaoxue Yin
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Xiufang Wei
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Xiaofang Zhong
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Yanjian Yang
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Junru Wang
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Yuan Li
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Zheng Guo
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China
| | - Jianmin Ye
- Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, Guangdong Provincial Engineering Technology Research Center for Environmentally-Friendly Aquaculture, College of Life Sciences, South China Normal University, Guangdong, 510631, PR China.
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Kaisar MMM, Ritter M, del Fresno C, Jónasdóttir HS, van der Ham AJ, Pelgrom LR, Schramm G, Layland LE, Sancho D, Prazeres da Costa C, Giera M, Yazdanbakhsh M, Everts B. Dectin-1/2-induced autocrine PGE2 signaling licenses dendritic cells to prime Th2 responses. PLoS Biol 2018; 16:e2005504. [PMID: 29668708 PMCID: PMC5927467 DOI: 10.1371/journal.pbio.2005504] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/30/2018] [Accepted: 03/20/2018] [Indexed: 02/02/2023] Open
Abstract
The molecular mechanisms through which dendritic cells (DCs) prime T helper 2 (Th2) responses, including those elicited by parasitic helminths, remain incompletely understood. Here, we report that soluble egg antigen (SEA) from Schistosoma mansoni, which is well known to drive potent Th2 responses, triggers DCs to produce prostaglandin E2 (PGE2), which subsequently—in an autocrine manner—induces OX40 ligand (OX40L) expression to license these DCs to drive Th2 responses. Mechanistically, SEA was found to promote PGE2 synthesis through Dectin-1 and Dectin-2, and via a downstream signaling cascade involving spleen tyrosine kinase (Syk), extracellular signal-regulated kinase (ERK), cytosolic phospholipase A2 (cPLA2), and cyclooxygenase 1 and 2 (COX-1 and COX-2). In addition, this pathway was activated independently of the actions of omega-1 (ω-1), a previously described Th2-priming glycoprotein present in SEA. These findings were supported by in vivo murine data showing that ω-1–independent Th2 priming by SEA was mediated by Dectin-2 and Syk signaling in DCs. Finally, we found that Dectin-2−/−, and to a lesser extent Dectin-1−/− mice, displayed impaired Th2 responses and reduced egg-driven granuloma formation following S. mansoni infection, highlighting the physiological importance of this pathway in Th2 polarization during a helminth infection. In summary, we identified a novel pathway in DCs involving Dectin-1/2-Syk-PGE2-OX40L through which Th2 immune responses are induced. T helper 2 (Th2) responses, which are initiated by dendritic cells (DCs), can cause allergic diseases, but they can also provide protection against metabolic disorders and parasitic helminth infections. As such, there is great interest in better understanding how their activity is induced and regulated by DCs. Parasitic helminths can potently induce Th2 responses. However, how helminths condition DCs for priming of Th2 responses remains incompletely understood. Here, we find that egg antigens from the parasitic helminth Schistosoma mansoni bind to pattern-recognition receptors (PRRs) Dectin-1 and Dectin-2 on DCs. This binding triggers a signaling cascade in DCs that results in synthesis of eicosanoid prostaglandin E2 (PGE2). PGE2 is sensed by the DCs themselves, resulting in expression of OX40 ligand (OX40L), which subsequently enables the DCs to promote Th2 differentiation. We show that this pathway is activated independently of omega-1 (ω-1), which is a glycoprotein secreted by the eggs and previously shown to condition DCs for priming of Th2 responses. Moreover, we demonstrate that this ω-1–independent pathway is crucial for Th2 induction and egg-driven immunopathology following S. mansoni infection in vivo. In summary, we identified a novel pathway in DCs involving Dectin-1/2–induced autocrine PGE2 signaling through which Th2 responses are induced.
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Affiliation(s)
- Maria M. M. Kaisar
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
- Department of Parasitology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Manuel Ritter
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Germany
| | - Carlos del Fresno
- Centro Nacional de Investigaciones Cardiovasculares “Carlos III”, Madrid, Spain
| | - Hulda S. Jónasdóttir
- Center of Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Alwin J. van der Ham
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Leonard R. Pelgrom
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Laura E. Layland
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Germany & German Centre for Infection Research, partner site, Bonn-Cologne, Bonn, Germany
| | - David Sancho
- Centro Nacional de Investigaciones Cardiovasculares “Carlos III”, Madrid, Spain
| | | | - Martin Giera
- Center of Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Maria Yazdanbakhsh
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Bart Everts
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
- * E-mail:
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Chen X, Kunda PE, Lin J, Zhou M, Huang J, Zhang H, Liu T. SYK-targeted dendritic cell-mediated cytotoxic T lymphocytes enhance the effect of immunotherapy on retinoblastoma. J Cancer Res Clin Oncol 2018; 144:675-684. [PMID: 29372378 PMCID: PMC5843685 DOI: 10.1007/s00432-018-2584-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/15/2018] [Indexed: 12/25/2022]
Abstract
PURPOSE Retinoblastoma (RB) is the most common primary intraocular tumor in children. Chemotherapy is currently the main method of RB treatment. Unfortunately, RB often becomes chemoresistant and turns lethal. Here, we used in vitro cell immunotherapy to explore whether adoptive immunotherapy could be used as a potential treatment for RB. We focused on spleen tyrosine kinase (SYK), which is significantly upregulated in RB cells and serves as a marker for RB cells. METHODS Using lentiviruses, we genetically modified dendritic cells (DCs) to express and present the SYK peptide antigen to cytotoxic T lymphocytes (CTLs) in vitro. We used SYK-negative cell lines (MDA-MB-231, MCF-10A, and hTERT-RPE1) and SYK-positive cell lines (MCF-7 and RB-Y79) to evaluate the specificity and cytotoxicity of DC presented CTLs using FACS, live-cell imaging, and RNA interference. RESULTS The cytotoxicity of CTLs induced by SYK-overexpressing DCs (SYK-DC-CTLs) was enhanced more than three times in SYK-positive cell lines compared with SYK-negative cell lines. DCs primed with SYK could drive CTL cytotoxicity against SYK-positive cell lines but not against SYK-negative cell lines. Moreover, SYK-silenced RB-Y79 cells successfully evaded the cytotoxic attack from SYK-DC-CTLs. However, SYK-DC-CTLs could target SYK overexpressed hTERT-RPE1 cells, suggesting that SYK is a specific antigen for RB. Furthermore, SYK-DC-CTL exhibited specific cytotoxicity against carboplatin-resistant RB-Y79 cells in vitro. CONCLUSIONS Our data showed that SYK could be a potential immunotherapy target mediated by DCs. We propose SYK as a candidate target for treatment of chemoresistant RB.
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Affiliation(s)
- Xuemei Chen
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Patricia Elena Kunda
- Centro Investigación Medicina Traslacional "Severo Amuchástegui" (CIMETSA), Instituto Universitario Ciencias Biomédicas Córdoba (IUCBC), Córdoba, Argentina
| | - Jianwei Lin
- Shenzhen Key Laboratory for Anti-Ageing and Regenerative Medicine, Health Science Center, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, Guangdong, China
| | - Meiling Zhou
- Shenzhen Key Laboratory for Anti-Ageing and Regenerative Medicine, Health Science Center, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, Guangdong, China
- Department of Biotherapy, Shenzhen Luohu People's Hospital, No. 47 Youyi Road, Shenzhen, 518001, Guangdong, China
| | - Jinghan Huang
- Department of Biotherapy, Shenzhen Luohu People's Hospital, No. 47 Youyi Road, Shenzhen, 518001, Guangdong, China
| | - Huqin Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Tao Liu
- Shenzhen Key Laboratory for Anti-Ageing and Regenerative Medicine, Health Science Center, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, 518060, Guangdong, China.
- Department of Biotherapy, Shenzhen Luohu People's Hospital, No. 47 Youyi Road, Shenzhen, 518001, Guangdong, China.
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Serbulea V, Upchurch CM, Ahern KW, Bories G, Voigt P, DeWeese DE, Meher AK, Harris TE, Leitinger N. Macrophages sensing oxidized DAMPs reprogram their metabolism to support redox homeostasis and inflammation through a TLR2-Syk-ceramide dependent mechanism. Mol Metab 2018; 7:23-34. [PMID: 29153923 PMCID: PMC5784323 DOI: 10.1016/j.molmet.2017.11.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 10/28/2017] [Accepted: 11/01/2017] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Macrophages control tissue homeostasis and inflammation by sensing and responding to environmental cues. However, the metabolic adaptation of macrophages to oxidative tissue damage and its translation into inflammatory mechanisms remains enigmatic. METHODS Here we identify the critical regulatory pathways that are induced by endogenous oxidation-derived DAMPs (oxidized phospholipids, OxPL) in vitro, leading to formation of a unique redox-regulatory metabolic phenotype (Mox), which is strikingly different from conventional classical or alternative macrophage activation. RESULTS Unexpectedly, metabolomic analyses demonstrated that Mox heavily rely on glucose metabolism and the pentose phosphate pathway (PPP) to support GSH production and Nrf2-dependent antioxidant gene expression. While the metabolic adaptation of macrophages to OxPL involved transient suppression of aerobic glycolysis, it also led to upregulation of inflammatory gene expression. In contrast to classically activated (M1) macrophages, Hif1α mediated expression of OxPL-induced Glut1 and VEGF but was dispensable for Il1β expression. Mechanistically, we show that OxPL suppress mitochondrial respiration via TLR2-dependent ceramide production, redirecting TCA metabolites to GSH synthesis. Finally, we identify spleen tyrosine kinase (Syk) as a critical downstream signaling mediator that translates OxPL-induced effects into ceramide production and inflammatory gene regulation. CONCLUSIONS Together, these data demonstrate the metabolic and bioenergetic requirements that enable macrophages to translate tissue oxidation status into either antioxidant or inflammatory responses via sensing OxPL. Targeting dysregulated redox homeostasis in macrophages could therefore lead to novel therapies to treat chronic inflammation.
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Affiliation(s)
- Vlad Serbulea
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA
| | - Clint M Upchurch
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA
| | - Katelyn W Ahern
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA; Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22903, USA
| | - Gael Bories
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA
| | - Paxton Voigt
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA
| | - Dory E DeWeese
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA
| | - Akshaya K Meher
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA
| | - Thurl E Harris
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA; Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22903, USA
| | - Norbert Leitinger
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22903, USA; Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22903, USA.
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席 作, 梁 伟. [Spleen tyrosine kinase inhibits proliferation and promotes apoptosis of colorectal cancer cells in vitro via regulating Fra-1]. Nan Fang Yi Ke Da Xue Xue Bao 2017; 37:1654-1659. [PMID: 29292261 PMCID: PMC6744020 DOI: 10.3969/j.issn.1673-4254.2017.12.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the effects of spleen tyrosine kinase (SYK) overexpression on proliferation and apoptosis of colorectal cancer cells and explore the possible mechanism. METHODS The mRNA expressions of SYK and Fra?1 in 10 clinical specimens of colorectal cancer and 10 adjacent tissues were measured with qRT?PCR, and their protein expressions were detected with Western blotting. The recombinant plasmid pcDNA.3.1?SYK was constructed and transfected into colorectal cancer cells to induce SYK overexpression, and the cell viability and proliferation were assessed using by MTT assay and BrdU assay, respectively; caspase?3 activity in the cells was evaluated with a commercial kit and the cell apoptosis was analyzed with Annexin?V FITC/PI assay. RESULTS The expressions of SYK were significantly decreased in colorectal cancer tissues and colorectal cancer cell lines. Transfection of pcDNA.3.1?SYK into the colorectal cancer cells induced obviously upregulated mRNA and protein expressions of SYK, which caused a significant suppression of the cell viability and proliferation and enhancement of the cell apoptosis along with a significant inhibition of Fra?1 expression. CONCLUSION s SYK overexpression inhibits the proliferation and promotes apoptosis of colorectal cancer cells, and these effects are possibly mediated by the regulation of Fra?1 expression by SYK.
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Affiliation(s)
- 作武 席
- 河南省中医院肛肠科,河南 郑州 450000Department of Proctology, Henan Provincial Hospital of Traditional Chinese Medicine, Zhengzhou 450002, China
| | - 伟涛 梁
- 河南中医药大学中医外科,河南 郑州 450000Surgery of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China
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Abstract
Spleen tyrosine kinase (Syk) is a cytosolic non-receptor protein tyrosine kinase (PTK) and is mainly expressed in hematopoietic cells. Syk was recognized as a critical element in the B-cell receptor signaling pathway. Syk is also a key component in signal transduction from other immune receptors like Fc receptors and adhesion receptors. Several oral Syk inhibitors including fostamatinib (R788), entospletinib (GS-9973), cerdulatinib (PRT062070), and TAK-659 are being assessed in clinical trials. The second generation compound, entospletinib, showed promising results in clinical trials against B-cell malignancies, mainly chronic lymphoid leukemia. Syk inhibitors are being evaluated in combination regimens in multiple malignancies.
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Affiliation(s)
- Delong Liu
- Department of Oncology, The first Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Aleksandra Mamorska-Dyga
- Department of Medicine, New York Medical College and Westchester Medical Center, Valhalla, NY, 10595, USA
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Mohr S, Doebele C, Comoglio F, Berg T, Beck J, Bohnenberger H, Alexe G, Corso J, Ströbel P, Wachter A, Beissbarth T, Schnütgen F, Cremer A, Haetscher N, Göllner S, Rouhi A, Palmqvist L, Rieger MA, Schroeder T, Bönig H, Müller-Tidow C, Kuchenbauer F, Schütz E, Green AR, Urlaub H, Stegmaier K, Humphries RK, Serve H, Oellerich T. Hoxa9 and Meis1 Cooperatively Induce Addiction to Syk Signaling by Suppressing miR-146a in Acute Myeloid Leukemia. Cancer Cell 2017; 31:549-562.e11. [PMID: 28399410 PMCID: PMC5389883 DOI: 10.1016/j.ccell.2017.03.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 01/09/2017] [Accepted: 03/03/2017] [Indexed: 01/02/2023]
Abstract
The transcription factor Meis1 drives myeloid leukemogenesis in the context of Hox gene overexpression but is currently considered undruggable. We therefore investigated whether myeloid progenitor cells transformed by Hoxa9 and Meis1 become addicted to targetable signaling pathways. A comprehensive (phospho)proteomic analysis revealed that Meis1 increased Syk protein expression and activity. Syk upregulation occurs through a Meis1-dependent feedback loop. By dissecting this loop, we show that Syk is a direct target of miR-146a, whose expression is indirectly regulated by Meis1 through the transcription factor PU.1. In the context of Hoxa9 overexpression, Syk signaling induces Meis1, recapitulating several leukemogenic features of Hoxa9/Meis1-driven leukemia. Finally, Syk inhibition disrupts the identified regulatory loop, prolonging survival of mice with Hoxa9/Meis1-driven leukemia.
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Affiliation(s)
- Sebastian Mohr
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Carmen Doebele
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Federico Comoglio
- Department of Haematology, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK; Cambridge Institute for Medical Research, Wellcome Trust/MRC Stem Cell Institute, Cambridge CB2 0XY, UK
| | - Tobias Berg
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; German Cancer Research Center and German Cancer Consortium, 69120 Heidelberg, Germany
| | - Julia Beck
- Chronix Biomedical, Goetheallee 8, 37073 Göttingen, Germany
| | - Hanibal Bohnenberger
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37073 Göttingen, Germany
| | - Gabriela Alexe
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA 02115, USA; Broad Institute, Cambridge, MA 02142, USA
| | - Jasmin Corso
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Philipp Ströbel
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37073 Göttingen, Germany
| | - Astrid Wachter
- Institute of Medical Statistics, University Medical Center Göttingen, Humboldtallee 32, 37073 Göttingen, Germany
| | - Tim Beissbarth
- Institute of Medical Statistics, University Medical Center Göttingen, Humboldtallee 32, 37073 Göttingen, Germany
| | - Frank Schnütgen
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Anjali Cremer
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Nadine Haetscher
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Stefanie Göllner
- Department of Hematology and Oncology, University of Halle, Ernst-Grube-Street 40, 06120 Halle, Germany
| | - Arefeh Rouhi
- Department of Internal Medicine III, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Lars Palmqvist
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Su sahlgrenska, 41345 Gothenburg, Sweden
| | - Michael A Rieger
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; German Cancer Research Center and German Cancer Consortium, 69120 Heidelberg, Germany
| | - Timm Schroeder
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule (ETH) Zurich, 4058 Basel, Switzerland
| | - Halvard Bönig
- Institute for Transfusion Medicine and Immunohematology, Goethe University, Sandhofstraße 1, 60590 Frankfurt, Germany
| | - Carsten Müller-Tidow
- Department of Hematology and Oncology, University of Halle, Ernst-Grube-Street 40, 06120 Halle, Germany
| | - Florian Kuchenbauer
- Department of Internal Medicine III, University Hospital of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | | | - Anthony R Green
- Department of Haematology, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK; Cambridge Institute for Medical Research, Wellcome Trust/MRC Stem Cell Institute, Cambridge CB2 0XY, UK
| | - Henning Urlaub
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany; Bioanalytics, Georg August University, Robert-Koch-Straße 40, 37073 Göttingen, Germany
| | - Kimberly Stegmaier
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA 02115, USA; Broad Institute, Cambridge, MA 02142, USA
| | - R Keith Humphries
- Terry Fox Laboratory, British Columbia Cancer Agency, 675 West 10th Avenue, Vancouver, BC V5Z 1L3, Canada; Department of Medicine, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Hubert Serve
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; German Cancer Research Center and German Cancer Consortium, 69120 Heidelberg, Germany
| | - Thomas Oellerich
- Department of Medicine II, Hematology/Oncology, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Department of Haematology, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK; Cambridge Institute for Medical Research, Wellcome Trust/MRC Stem Cell Institute, Cambridge CB2 0XY, UK; German Cancer Research Center and German Cancer Consortium, 69120 Heidelberg, Germany.
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Salehi S, Wang X, Juvet S, Scott JA, Chow CW. Syk Regulates Neutrophilic Airway Hyper-Responsiveness in a Chronic Mouse Model of Allergic Airways Inflammation. PLoS One 2017; 12:e0163614. [PMID: 28107345 PMCID: PMC5249072 DOI: 10.1371/journal.pone.0163614] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 09/12/2016] [Indexed: 11/22/2022] Open
Abstract
Background Asthma is a chronic inflammatory disease characterized by airways hyper-responsiveness (AHR), reversible airway obstruction, and airway inflammation and remodeling. We previously showed that Syk modulates methacholine-induced airways contractility in naïve mice and in mice with allergic airways inflammation. We hypothesize that Syk plays a role in the pathogenesis of AHR; this was evaluated in a chronic 8-week mouse model of house dust mite (HDM)-induced allergic airways inflammation. Methods We used the Sykflox/flox//rosa26CreERT2 conditional Syk knock-out mice to assess the role of Syk prior to HDM exposure, and treated HDM-sensitized mice with the Syk inhibitor, GSK143, to evaluate its role in established allergic airways inflammation. Respiratory mechanics and methacholine (MCh)-responsiveness were assessed using the flexiVent® system. Lungs underwent bronchoalveolar lavage to isolate inflammatory cells or were frozen for determination of gene expression in tissues. Results MCh-induced AHR was observed following HDM sensitization in the Syk-intact (Sykflox/flox) and vehicle-treated BALB/c mice. MCh responsiveness was reduced to control levels in HDM-sensitized Sykdel/del mice and in BALB/c and Sykflox/flox mice treated with GSK143. Both Sykdel/del and GSK143-treated mice mounted appropriate immune responses to HDM, with HDM-specific IgE levels that were comparable to Sykflox/flox and vehicle-treated BALB/c mice. HDM-induced increases in bronchoalveolar lavage cell counts were attenuated in both Sykdel/del and GSK143-treated mice, due primarily to decreased neutrophil recruitment. Gene expression analysis of lung tissues revealed that HDM-induced expression of IL-17 and CXCL-1 was significantly attenuated in both Sykdel/del and GSK143-treated mice. Conclusion Syk inhibitors may play a role in the management of neutrophilic asthma.
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Affiliation(s)
- Sepehr Salehi
- Division of Respirology, Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Xiaomin Wang
- Division of Respirology, Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Stephen Juvet
- Division of Respirology, Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Medical Sciences, Northern Ontario School of Medicine, Thunder Bay, Ontario, Canada
| | - Jeremy A. Scott
- Division of Medical Sciences, Northern Ontario School of Medicine, Thunder Bay, Ontario, Canada
- Southern Ontario Center for Atmospheric Aerosol Research, Faculty of Applied Sciences, University of Toronto, Toronto, Ontario, Canada
- Division of Occupational and Environmental Health, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Department of Health Sciences, Faculty of Health and Behavioural Sciences, Lakehead University, Thunder Bay, Ontario, Canada
| | - Chung-Wai Chow
- Division of Respirology, Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Southern Ontario Center for Atmospheric Aerosol Research, Faculty of Applied Sciences, University of Toronto, Toronto, Ontario, Canada
- Division of Occupational and Environmental Health, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Multi-Organ Transplant Programme, University Health Network, Toronto, Ontario, Canada
- * E-mail:
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Afifiyan N, Tillman B, French BA, Masouminia M, Samadzadeh S, French SW. Over expression of proteins that alter the intracellular signaling pathways in the cytoplasm of the liver cells forming Mallory-Denk bodies. Exp Mol Pathol 2017; 102:106-114. [PMID: 28089901 DOI: 10.1016/j.yexmp.2017.01.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 12/12/2022]
Abstract
In this study, liver biopsy sections fixed in formalin and embedded in paraffin (FFPE) from patients with alcoholic hepatitis (AH) were used. The results showed that the expression of the SYK protein was up regulated by RNA-seq and real time PCR analyses in the alcoholic hepatitis patients compared to controls. The results were supported by using the IHC fluorescent antibody staining intensity morphometric quantitation. Morphometric quantification of fluorescent intensity measurement showed a two fold increase in SYK protein in the cytoplasm of the cells forming MDBs compared to surrounding normal hepatocytes. The expression of AKT1 was also analyzed. AKT1 is a serine/threonine-specific protein kinase that plays a key role in multiple cellular processes such as glucose metabolism, apoptosis, cell proliferation, transcription and cell migration. The AKT protein was also increased in hepatocyte balloon cells forming MDBs. This observation demonstrates the role of SYK and its subsequent effect on the internal signaling pathways such as PI3K/AKT as well as p70S6K, as a potential multifunctional target in protein quality control mechanisms of hepatocytes when ER stress is activated.
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Affiliation(s)
- N Afifiyan
- Department of Pathology, Harbor UCLA Medical Center and Los Angeles BioMedical Institute, 1000W, Carson, Torrance, CA 90509, United States
| | - B Tillman
- Department of Pathology, Harbor UCLA Medical Center and Los Angeles BioMedical Institute, 1000W, Carson, Torrance, CA 90509, United States
| | - B A French
- Department of Pathology, Harbor UCLA Medical Center and Los Angeles BioMedical Institute, 1000W, Carson, Torrance, CA 90509, United States
| | - M Masouminia
- Department of Pathology, Harbor UCLA Medical Center and Los Angeles BioMedical Institute, 1000W, Carson, Torrance, CA 90509, United States
| | - S Samadzadeh
- Department of Pathology, Harbor UCLA Medical Center and Los Angeles BioMedical Institute, 1000W, Carson, Torrance, CA 90509, United States
| | - S W French
- Department of Pathology, Harbor UCLA Medical Center and Los Angeles BioMedical Institute, 1000W, Carson, Torrance, CA 90509, United States.
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Pamuk ON, Gurkan H, Pamuk GE, Tozkır H, Duymaz J, Yazar M. BLK pathway-associated rs13277113 GA genotype is more frequent in SLE patients and associated with low gene expression and increased flares. Clin Rheumatol 2016; 36:103-109. [PMID: 27864698 DOI: 10.1007/s10067-016-3475-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 09/28/2016] [Accepted: 11/04/2016] [Indexed: 02/02/2023]
Abstract
We aimed to evaluate the relationship between some important genetic variations and expressions of these genes in our SLE population. We also determined their association with clinical parameters. Eighty-four SLE patients (79 F, 5 M) and 105 healthy controls (98 F, 7 M) were included in the study. rs13277113, rs2736340, rs7829816, rs6983130, rs2613310, and rs704853 polymorphisms, gene expressions of Src family kinases (Blk, Hck, Lck, and Lyn), and Syk kinases (Syk, ZAP70) were studied by real-time PCR. The heterozygous genotypic pattern (GA) for rs13277113 polymorphism was more frequent in patients with SLE when compared to that in controls (48.8 vs. 31.4%, p = 0.035). Other genotype variants were similar in SLE patients and controls. In the SLE group, the heterozygous genotype for rs13277113 was significantly less frequent in active SLE patients (58.8 vs. 26.7%, p = 0.01). SLE flares according to the SELENA-SLEDAI flare index were significantly more frequent in GA (rs13277113) (70 vs. 37%) and CT (rs2736340) genotypes (66.7 vs. 35.2%) than those in other genotypes (p values <0.01). The relative expression of Blk gene was significantly decreased in the SLE group as compared to that in controls (0.52 times, 95%CI 0.19-0.85). The gene expressions of Blk and ZAP70 were significantly lower in SLE patients who had flares according to the SELENA-SLEDAI flare index when compared to those in others (p values 0.01 and 0.017). We observed more frequent heterozygous GA genotypic pattern (rs13277113) in our SLE patients compared to that in controls; and it was associated with disease flares. Blk gene expression in SLE was lower, especially in relapsing patients.
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Affiliation(s)
- Omer Nuri Pamuk
- Department of Rheumatology, Trakya University Medical Faculty, Edirne, Turkey.
- , Eski Yildiz Cad. Park Apt. No:22 Daire:18 Besiktas, 34349, Istanbul, Turkey.
| | - Hakan Gurkan
- Department of Medical Genetics, Trakya University Medical Faculty, Edirne, Turkey
| | - Gulsum Emel Pamuk
- Department of Hematology, Trakya University Medical Faculty, Edirne, Turkey
| | - Hilmi Tozkır
- Department of Medical Genetics, Trakya University Medical Faculty, Edirne, Turkey
| | - Julide Duymaz
- Trakya University Health Services Vocational College, Edirne, Turkey
| | - Metin Yazar
- Department of Medical Genetics, Trakya University Medical Faculty, Edirne, Turkey
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