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Li NZ, Wang ZX, Zhang F, Feng CZ, Chen Y, Liu DJ, Chen SB, Jin Y, Zhang YL, Xie YY, Huang QH, Wang L, Li B, Sun XJ. Threonine dehydrogenase regulates neutrophil homeostasis but not H3K4me3 levels in zebrafish. FEBS J 2024; 291:3367-3383. [PMID: 38652546 DOI: 10.1111/febs.17138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/25/2024] [Accepted: 04/08/2024] [Indexed: 04/25/2024]
Abstract
l-threonine dehydrogenase (Tdh) is an enzyme that links threonine metabolism to epigenetic modifications and mitochondria biogenesis. In vitro studies show that it is critical for the regulation of trimethylation of histone H3 lysine 4 (H3K4me3) levels and cell fate determination of mouse embryonic stem cells (mESCs). However, whether Tdh regulates a developmental process in vivo and, if it does, whether it also primarily regulates H3K4me3 levels in this process as it does in mESCs, remains elusive. Here, we revealed that, in zebrafish hematopoiesis, tdh is preferentially expressed in neutrophils. Knockout of tdh causes a decrease in neutrophil number and slightly suppresses their acute injury-induced migration, but, unlike the mESCs, the level of H3K4me3 is not evidently reduced in neutrophils sorted from the kidney marrow of adult tdh-null zebrafish. These phenotypes are dependent on the enzymatic activity of Tdh. Importantly, a soluble supplement of nutrients that are able to fuel the acetyl-CoA pool, such as pyruvate, glucose and branched-chain amino acids, is sufficient to rescue the reduction in neutrophils caused by tdh deletion. In summary, our study presents evidence for the functional requirement of Tdh-mediated threonine metabolism in a developmental process in vivo. It also provides an animal model for investigating the nutritional regulation of myelopoiesis and immune response, as well as a useful tool for high-throughput drug/nutrition screening.
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Affiliation(s)
- Ning-Zhe Li
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Zi-Xuan Wang
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Fan Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Chang-Zhou Feng
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
- Department of Clinical Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, The First People's Hospital of Lianyungang, Jiangsu, China
| | - Yi Chen
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Dian-Jia Liu
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Shu-Bei Chen
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Yi Jin
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Yuan-Liang Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Yin-Yin Xie
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Qiu-Hua Huang
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
| | - Lan Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Bing Li
- Department of Biochemistry and Molecular Cell Biology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, China
| | - Xiao-Jian Sun
- Shanghai Institute of Hematology, State Key Laboratory of Omics and Diseases, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, China
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2
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Meng X, Tang N, Su W, Chen W, Zhang Y, Li H. Fermentation of DaiDai fruit and its biological activity. Front Microbiol 2024; 15:1443283. [PMID: 39077743 PMCID: PMC11284028 DOI: 10.3389/fmicb.2024.1443283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 07/01/2024] [Indexed: 07/31/2024] Open
Abstract
DaiDai fruit, a medicinal and edible plant fruit, is abundant in biologically active compounds and has a long history of use in traditional Chinese medicine. This research focuses on utilizing fermentation to develop a functional DaiDai fruit fermentation broth. Lactobacillus, Bacillus subtilis and Saccharomyces cerevisiae were employed in the fermentation process. By conducting screenings of bacterial strains, single factor experiments, and response surface methodology, the total flavonoids, polysaccharides, polyphenols, and 1,1-diphenyl-2-trinitrophenylhydrazine (DPPH) free radical scavenging rate were used as the index for selection, ultimately identifying Lactobacillus L-13 as the optimal fermentation strain. The optimal fermentation conditions were determined to be a time of 108 h, a temperature of 43.6°C, and a solid-liquid ratio of 1:15.157 (w/v). Under these conditions, the total flavonoid content reached 412.01 mg/g, representing a 36.71% increase compared to conventional extraction methods. The contents of polysaccharides and polyphenols and the DPPH scavenging rate were also increased. The fermentation broth of DaiDai fruit exhibited inhibitory effects on tyrosinase and melanin production in mouse melanoma cells B16-F10 induced by α-MSH and anti-inflammatory properties in a zebrafish inflammation model. These indicate that the DaiDai fruit fermentation broth possesses anti-melanoma, whitening, and anti-inflammatory properties, showcasing significant potential for applications in medicine, cosmetics, and other industries.
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Affiliation(s)
- Xiangyu Meng
- School of Base Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
| | - Nan Tang
- School of Base Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
| | - Wenfeng Su
- School of Base Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
| | - Weiji Chen
- School of Base Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yue Zhang
- Qingdao Benyue Biological Technology Co., Ltd., Qingdao, China
| | - He Li
- School of Base Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
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3
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Bao Q, Zhang B, Zhou L, Yang Q, Mu X, Liu X, Zhang S, Yuan M, Zhang Y, Che J, Wei W, Liu T, Li G, He J. CNP Ameliorates Macrophage Inflammatory Response and Atherosclerosis. Circ Res 2024; 134:e72-e91. [PMID: 38456298 DOI: 10.1161/circresaha.123.324086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/26/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND CNP (C-type natriuretic peptide), an endogenous short peptide in the natriuretic peptide family, has emerged as an important regulator to govern vascular homeostasis. However, its role in the development of atherosclerosis remains unclear. This study aimed to investigate the impact of CNP on the progression of atherosclerotic plaques and elucidate its underlying mechanisms. METHODS Plasma CNP levels were measured in patients with acute coronary syndrome. The potential atheroprotective role of CNP was evaluated in apolipoprotein E-deficient (ApoE-/-) mice through CNP supplementation via osmotic pumps, genetic overexpression, or LCZ696 administration. Various functional experiments involving CNP treatment were performed on primary macrophages derived from wild-type and CD36 (cluster of differentiation 36) knockout mice. Proteomics and multiple biochemical analyses were conducted to unravel the underlying mechanism. RESULTS We observed a negative correlation between plasma CNP concentration and the burden of coronary atherosclerosis in patients. In early atherosclerotic plaques, CNP predominantly accumulated in macrophages but significantly decreased in advanced plaques. Supplementing CNP via osmotic pumps or genetic overexpression ameliorated atherosclerotic plaque formation and enhanced plaque stability in ApoE-/- mice. CNP promoted an anti-inflammatory macrophage phenotype and efferocytosis and reduced foam cell formation and necroptosis. Mechanistically, we found that CNP could accelerate HIF-1α (hypoxia-inducible factor 1-alpha) degradation in macrophages by enhancing the interaction between PHD (prolyl hydroxylase domain-containing protein) 2 and HIF-1α. Furthermore, we observed that CD36 bound to CNP and mediated its endocytosis in macrophages. Moreover, we demonstrated that the administration of LCZ696, an orally bioavailable drug recently approved for treating chronic heart failure with reduced ejection fraction, could amplify the bioactivity of CNP and ameliorate atherosclerotic plaque formation. CONCLUSIONS Our study reveals that CNP enhanced plaque stability and alleviated macrophage inflammatory responses by promoting HIF-1α degradation, suggesting a novel atheroprotective role of CNP. Enhancing CNP bioactivity may offer a novel pharmacological strategy for treating related diseases.
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Affiliation(s)
- Qiankun Bao
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Bangying Zhang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Lu Zhou
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Qian Yang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Xiaofeng Mu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Xing Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Shiying Zhang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Meng Yuan
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Yue Zhang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Jingjin Che
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Wen Wei
- Center for Mechanisms of Evolution, Biodesign Institute, Arizona State University, Tempe (W.W.)
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Guangping Li
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, China (Q.B., B.Z., L.Z., Q.Y., X.M., X.L., S.Z., M.Y., Y.Z., J.C., T.L., G.L.)
| | - Jinlong He
- Tianjin Key Laboratory of Metabolic Diseases, The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, China (J.H.)
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4
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Chang WC, Chen MJ, Hsiao CD, Hu RZ, Huang YS, Chen YF, Yang TH, Tsai GY, Chou CW, Chen RS, Chuang YJ, Liu YW. The anti-platelet drug cilostazol enhances heart rate and interrenal steroidogenesis and exerts a scant effect on innate immune responses in zebrafish. PLoS One 2023; 18:e0292858. [PMID: 37903128 PMCID: PMC10615288 DOI: 10.1371/journal.pone.0292858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 10/01/2023] [Indexed: 11/01/2023] Open
Abstract
RATIONALE Cilostazol, an anti-platelet phosphodiesterase-3 inhibitor used for the treatment of intermittent claudication, is known for its pleiotropic effects on platelets, endothelial cells and smooth muscle cells. However, how cilostazol impacts the endocrine system and the injury-induced inflammatory processes remains unclear. METHODS We used the zebrafish, a simple transparent model that demonstrates rapid development and a strong regenerative ability, to test whether cilostazol influences heart rate, steroidogenesis, and the temporal and dosage effects of cilostazol on innate immune cells during tissue damage and repair. RESULTS While dosages of cilostazol from 10 to 100 μM did not induce any noticeable morphological abnormality in the embryonic and larval zebrafish, the heart rate was increased as measured by ImageJ TSA method. Moreover, adrenal/interrenal steroidogenesis in larval zebrafish, analyzed by whole-mount 3β-Hsd enzymatic activity and cortisol ELISA assays, was significantly enhanced. During embryonic fin amputation and regeneration, cilostazol treatments led to a subtle yet significant effect on reducing the aggregation of Mpx-expressing neutrophil at the lesion site, but did not affect the immediate injury-induced recruitment and retention of Mpeg1-expressing macrophages. CONCLUSIONS Our results indicate that cilostazol has a significant effect on the heart rate and the growth as well as endocrine function of steroidogenic tissue; with a limited effect on the migration of innate immune cells during tissue damage and repair.
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Affiliation(s)
- Wei-Chun Chang
- Department of Life Science, Tunghai University, Taichung, Taiwan
- Feng Yuan Hospital of the Ministry of Health and Welfare, Taichung, Taiwan
| | - Mei-Jen Chen
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Chung-Der Hsiao
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taiwan
| | - Rong-Ze Hu
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Yu-Shan Huang
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Yu-Fu Chen
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Tsai-Hua Yang
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Guan-Yi Tsai
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Chih-Wei Chou
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Ren-Shiang Chen
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Yung-Jen Chuang
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
- Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Yi-Wen Liu
- Department of Life Science, Tunghai University, Taichung, Taiwan
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5
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Lian Z, Wu Z, Gu R, Wang Y, Wu C, Cheng Z, He M, Wang Y, Cheng Y, Gu HF. Evaluation of Cardiovascular Toxicity of Folic Acid and 6S-5-Methyltetrahydrofolate-Calcium in Early Embryonic Development. Cells 2022; 11:cells11243946. [PMID: 36552710 PMCID: PMC9777352 DOI: 10.3390/cells11243946] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Folic acid (FA) is a synthetic and highly stable version of folate, while 6S-5-methyltetrahydrofolate is the predominant form of dietary folate in circulation and is used as a crystalline form of calcium salt (MTHF-Ca). The current study aims to evaluate the toxicity and safety of FA and MTHF-Ca on embryonic development, with a focus on cardiovascular defects. We began to analyze the toxicity of FA and MTHF-Ca in zebrafish from four to seventy-two hours postfertilization and assessed the efficacy of FA and MTHF-Ca in a zebrafish angiogenesis model. We then analyzed the differently expressed genes in in vitro fertilized murine blastocysts cultured with FA and MTHF-Ca. By using gene-expression profiling, we identified a novel gene in mice that encodes an essential eukaryotic translation initiation factor (Eif1ad7). We further applied the morpholino-mediated gene-knockdown approach to explore whether the FA inhibition of this gene (eif1axb in zebrafish) caused cardiac development disorders, which we confirmed with qRT-PCR. We found that FA, but not MTHF-Ca, could inhibit angiogenesis in zebrafish and result in abnormal cardiovascular development, leading to embryonic death owing to the downregulation of eif1axb. MTHF-Ca, however, had no such cardiotoxicity, unlike FA. The current study thereby provides experimental evidence that FA, rather than MTHF-Ca, has cardiovascular toxicity in early embryonic development and suggests that excessive supplementation of FA in perinatal women may be related to the potential risk of cardiovascular disorders, such as congenital heart disease.
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Affiliation(s)
- Zenglin Lian
- Institute of Biological Chinese Medicine, Beijing Yichuang Institute of Biotechnology Industry, Beijing 100023, China
| | - Zhuanbin Wu
- Shanghai Model Organisms Center, Inc., Shanghai 201203, China
| | - Rui Gu
- Institute of Biological Chinese Medicine, Beijing Yichuang Institute of Biotechnology Industry, Beijing 100023, China
| | - Yurong Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Chenhua Wu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Zhengpei Cheng
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Mingfang He
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yanli Wang
- National Health Commission Key Laboratory of Birth Defect Prevention, Henan Institute of Reproductive Health Science and Technology, Zhengzhou 450002, China
| | - Yongzhi Cheng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
- Correspondence: (Y.C.); (H.F.G.)
| | - Harvest F. Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
- Correspondence: (Y.C.); (H.F.G.)
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Amanda S, Tan TK, Ong JZL, Theardy MS, Wong RWJ, Huang XZ, Ali MZ, Li Y, Gong Z, Inagaki H, Foo EY, Pang B, Tan SY, Iida S, Sanda T. IRF4 drives clonal evolution and lineage choice in a zebrafish model of T-cell lymphoma. Nat Commun 2022; 13:2420. [PMID: 35504924 PMCID: PMC9065160 DOI: 10.1038/s41467-022-30053-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 04/13/2022] [Indexed: 12/15/2022] Open
Abstract
IRF4 is a master regulator of immunity and is also frequently overexpressed in mature lymphoid neoplasms. Here, we demonstrate the oncogenicity of IRF4 in vivo, its potential effects on T-cell development and clonal evolution using a zebrafish model. IRF4-transgenic zebrafish develop aggressive tumors with massive infiltration of abnormal lymphocytes that spread to distal organs. Many late-stage tumors are mono- or oligoclonal, and tumor cells can expand in recipient animals after transplantation, demonstrating their malignancy. Mutation of p53 accelerates tumor onset, increases penetrance, and results in tumor heterogeneity. Surprisingly, single-cell RNA-sequencing reveals that the majority of tumor cells are double-negative T-cells, many of which express tcr-γ that became dominant as the tumors progress, whereas double-positive T-cells are largely diminished. Gene expression and epigenetic profiling demonstrates that gata3, mycb, lrrn1, patl1 and psip1 are specifically activated in tumors, while genes responsible for T-cell differentiation including id3 are repressed. IRF4-driven tumors are sensitive to the BRD inhibitor.
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Affiliation(s)
- Stella Amanda
- Cancer Science Institute of Singapore, National University of Singapore, 117599, Singapore, Singapore
| | - Tze King Tan
- Cancer Science Institute of Singapore, National University of Singapore, 117599, Singapore, Singapore
| | - Jolynn Zu Lin Ong
- Cancer Science Institute of Singapore, National University of Singapore, 117599, Singapore, Singapore
| | | | - Regina Wan Ju Wong
- Cancer Science Institute of Singapore, National University of Singapore, 117599, Singapore, Singapore
| | - Xiao Zi Huang
- Cancer Science Institute of Singapore, National University of Singapore, 117599, Singapore, Singapore
| | - Muhammad Zulfaqar Ali
- Cancer Science Institute of Singapore, National University of Singapore, 117599, Singapore, Singapore
| | - Yan Li
- Department of Biological Sciences, National University of Singapore, 117543, Singapore, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, 117543, Singapore, Singapore
| | - Hiroshi Inagaki
- Department of Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan
| | - Ee Yong Foo
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, 117599, Singapore, Singapore
| | - Brendan Pang
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, 117599, Singapore, Singapore
| | - Soo Yong Tan
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, 117599, Singapore, Singapore
| | - Shinsuke Iida
- Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
| | - Takaomi Sanda
- Cancer Science Institute of Singapore, National University of Singapore, 117599, Singapore, Singapore. .,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 117599, Singapore, Singapore.
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7
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Lieke T, Steinberg CEW, Meinelt T, Knopf K, Kloas W. Modification of the chemically induced inflammation assay reveals the Janus face of a phenol rich fulvic acid. Sci Rep 2022; 12:5886. [PMID: 35393468 PMCID: PMC8991211 DOI: 10.1038/s41598-022-09782-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 03/28/2022] [Indexed: 11/09/2022] Open
Abstract
Inflammation is an essential process as a reaction towards infections or wounding. Exposure to hazardous environmental pollutants can lead to chronic inflammations, where the resolving phase is delayed or blocked. Very contradictory studies have been reported on the pro- and anti-inflammatory effects of humic substances (HSs) leading to significant disagreements between researchers. To a certain extent, this can be attributed to the chemical heterogeneity of this group of xenobiotics. Here we show for the first time that pro- and anti-inflammatory effects can occur by one HSs. We adapted an assay that uses green fluorescence-labeled zebrafish larvae and CuSO4 to indue an inflammation. In wild-type larvae, exposure to 50 µM CuSO4 for 2 h activated the production of reactive oxygen species, which can be monitored with a fluorescence dye (H2DCFDA) and a microplate reader. This allows not only the use of wild-type fish but also a temporal separation of copper exposure and inflammatory substance while retaining the high throughput. This modified assay was then used to evaluate the inflammatory properties of a fulvic acid (FA). We found, that the aromatic structure of the FA protects from inflammation at 5 and 50 mg C/L, while the persistent free radicals enhance the copper-induced inflammation at ≥ 300 mg C/L.
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Affiliation(s)
- Thora Lieke
- Department of Ecophysiology and Aquaculture, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, 12587, Berlin, Germany. .,Faculty of Life Sciences, Humboldt University of Berlin, 10115, Berlin, Germany.
| | - Christian E W Steinberg
- Faculty of Life Sciences, Humboldt University of Berlin, 10115, Berlin, Germany.,Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Thomas Meinelt
- Department of Ecophysiology and Aquaculture, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, 12587, Berlin, Germany
| | - Klaus Knopf
- Department of Ecophysiology and Aquaculture, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, 12587, Berlin, Germany.,Faculty of Life Sciences, Humboldt University of Berlin, 10115, Berlin, Germany
| | - Werner Kloas
- Department of Ecophysiology and Aquaculture, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, 12587, Berlin, Germany.,Faculty of Life Sciences, Humboldt University of Berlin, 10115, Berlin, Germany
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8
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Pizzagalli DU, Pulfer A, Thelen M, Krause R, Gonzalez SF. In Vivo Motility Patterns Displayed by Immune Cells Under Inflammatory Conditions. Front Immunol 2022; 12:804159. [PMID: 35046959 PMCID: PMC8762290 DOI: 10.3389/fimmu.2021.804159] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 11/26/2021] [Indexed: 11/13/2022] Open
Abstract
The migration of immune cells plays a key role in inflammation. This is evident in the fact that inflammatory stimuli elicit a broad range of migration patterns in immune cells. Since these patterns are pivotal for initiating the immune response, their dysregulation is associated with life-threatening conditions including organ failure, chronic inflammation, autoimmunity, and cancer, amongst others. Over the last two decades, thanks to advancements in the intravital microscopy technology, it has become possible to visualize cell migration in living organisms with unprecedented resolution, helping to deconstruct hitherto unexplored aspects of the immune response associated with the dynamism of cells. However, a comprehensive classification of the main motility patterns of immune cells observed in vivo, along with their relevance to the inflammatory process, is still lacking. In this review we defined cell actions as motility patterns displayed by immune cells, which are associated with a specific role during the immune response. In this regard, we summarize the main actions performed by immune cells during intravital microscopy studies. For each of these actions, we provide a consensus name, a definition based on morphodynamic properties, and the biological contexts in which it was reported. Moreover, we provide an overview of the computational methods that were employed for the quantification, fostering an interdisciplinary approach to study the immune system from imaging data.
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Affiliation(s)
- Diego Ulisse Pizzagalli
- Istituto di Ricerca in Biomedicina (IRB), Università della Svizzera italiana, Bellinzona, Switzerland
- Euler institute, Università della Svizzera italiana, Lugano-Viganello, Switzerland
| | - Alain Pulfer
- Istituto di Ricerca in Biomedicina (IRB), Università della Svizzera italiana, Bellinzona, Switzerland
- Department of Information Technology and Electrical Engineering, Swiss Federal Institute of Technology Zurich (ETHZ) Zürich, Zürich, Switzerland
| | - Marcus Thelen
- Istituto di Ricerca in Biomedicina (IRB), Università della Svizzera italiana, Bellinzona, Switzerland
| | - Rolf Krause
- Euler institute, Università della Svizzera italiana, Lugano-Viganello, Switzerland
| | - Santiago F. Gonzalez
- Istituto di Ricerca in Biomedicina (IRB), Università della Svizzera italiana, Bellinzona, Switzerland
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9
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Chen K, Fan Y, Gu J, Han Z, Wang Y, Gao L, Zeng H, Mao C, Wang C. Effect of lgals3a on embryo development of zebrafish. Transgenic Res 2021; 30:739-750. [PMID: 34347236 DOI: 10.1007/s11248-021-00276-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/27/2021] [Indexed: 12/01/2022]
Abstract
Our study was aimed to investigate the effects of lgals3a (Gal-3 encoding gene) on the development of zebrafish embryo and its underlying mechanisms. Morpholino (MO) technology was used to inhibit the expression of zebrafish lgals3a, and the effect of lgals3a gene knockdown on zebrafish embryo development and the number of monocyte macrophages was observed. Effect of lgals3a-e3i3-MO on apoptosis of zebrafish was detected by acridine orange staining. In addition, the mRNA expression levels of Wnt/β-catenin signaling pathway-related genes were detected by RT-qPCR. Compared with control-MO group, the zebrafish embryos injected with lgals3a-e3i3-MO had obvious defects in the head, eyes, and tail, and pericardial edema. Lgals3a-e3i3-MO significantly reduced the number of mononuclear macrophages in zebrafish embryos compared with the control-MO group. The results of acridine orange staining showed that compared with the control-MO group, lgals3a-e3i3-MO promoted cardiomyocyte apoptosis in zebrafish. Furthermore, lgals3a-e3i3-MO significantly up-regulated the expression of dkk1b, wnt9a, lrp5, fzd7a, β-catenin, Gsk-3β, mycn, myca in the Wnt/β-catenin pathway, and decreased the expression of lef1. These results indicate that lgals3a-e3i3-MO inhibits zebrafish embryo development, reduces the number of mononuclear macrophages, activates Wnt/β-catenin signaling pathway and promotes cardiomyocyte apoptosis.
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Affiliation(s)
- Kan Chen
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yuqi Fan
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Jun Gu
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Zhihua Han
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yue Wang
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Lin Gao
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Huasu Zeng
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Chengyu Mao
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Changqian Wang
- Department of Cardiology, Shanghai Ninth People's Hospital Affiliated Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China.
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10
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Yao J, Wang Z, Wang R, Wang Y, Xu J, He X. Anti-proliferative and anti-inflammatory prenylated isoflavones and coumaronochromones from the fruits of Ficus altissima. Bioorg Chem 2021; 64:2893-900. [PMID: 34038794 DOI: 10.1021/acs.jafc.6b00227] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
Ficus altissima, an evergreen arbor belonging to the Moraceae family, is mainly cultivated in the tropics and subtropics of South and Southeast Asia with the characteristic of exuberant vitality and luxuriant foliage. In this article, four new prenylated isoflavones (1-4), along with ten previously described isoflavones (5-14) and two known prenylated coumaronochromones (15 and 16) were firstly obtained from the fruits of F. altissima. Their structures were identified by various spectroscopic techniques including specific optical rotation, HR-ESI-MS and NMR. The isolated products were evaluated for their anti-proliferative activities against three human tumor cell lines (HepG2, MCF-7 and MDA-MB-231) through MTT assay. Compounds 2, 3 and 16 exhibited obvious anti-proliferative activities against MDA-MB-231 cell line and compounds 3, 13 and 16 showed effective cytotoxic effects on HepG2 cell line in a concentration-dependent manner, as verified by the colony formation assay, cell and nucleus morphological assessment and apoptosis assay. Meanwhile, compounds 5 and 12 exhibited significant inhibition activities on NO production in LPS-stimulated RAW 264.7 cell line compared with positive control indometacin. The phytochemical investigation of the fruits of F. altissima in this study could provide the evidence for the discovery of lead compounds.
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Affiliation(s)
- Jiaming Yao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zhe Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Ru Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yihai Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China.
| | - Jingwen Xu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China
| | - Xiangjiu He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Engineering Research Center for Lead Compounds & Drug Discovery, Guangzhou 510006, China.
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11
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Kim S, Kang M, Ko J. Small leucine zipper protein promotes the metastasis of castration-resistant prostate cancer through transcriptional regulation of matrix metalloproteinase-13. Carcinogenesis 2021; 42:1089-1099. [PMID: 34050742 DOI: 10.1093/carcin/bgab045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/12/2021] [Accepted: 05/26/2021] [Indexed: 12/15/2022] Open
Abstract
Matrix metalloproteinases (MMPs) function as central modulators of tissue remodeling. Abnormal expression and altered activity of MMPs result in excessive extracellular matrix degradation and increased tumor metastasis in various cancers. Small leucine zipper protein (sLZIP), belonging to the leucine zipper transcription factor family, functions as a transcriptional regulator of genes involved in various cellular processes. However, its role in MMP expression and castration-resistant prostate cancer (CRPC) metastasis remains unclear. In this study, we investigated the role of sLZIP in MMP-13 expression and its involvement in CRPC metastasis. sLZIP increased MMP-13 transcription by directly binding to its promoter in CRPC cells. We found that the expression levels of GR, which represses MMP transcription, were elevated in CRPC cells. However, sLZIP suppressed the inhibitory effect of GR and enhanced the secretion of MMP-13 in CRPC cells. sLZIP promoted cell migration and invasion; however, a specific MMP-13 inhibitor blocked sLZIP-induced cell motility. Depletion of sLZIP using the CRISPR/Cas9 system downregulated MMP-13 mRNA expression in PC3 cells. Mice injected with sLZIP-depleted PC3 cells showed significantly reduced metastatic tumor volume in the lung compared to mice injected with control PC3 cells. Our findings suggest that sLZIP plays an important role in MMP-13 induction and CRPC metastasis. Therefore, sLZIP inhibition could be a novel therapeutic strategy for metastatic GR-enriched CRPC.
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Affiliation(s)
- Suhyun Kim
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Minsoo Kang
- Division of Life Sciences, Korea University, Seoul, South Korea
| | - Jesang Ko
- Division of Life Sciences, Korea University, Seoul, South Korea
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12
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Huang Y, Yu SH, Zhen WX, Cheng T, Wang D, Lin JB, Wu YH, Wang YF, Chen Y, Shu LP, Wang Y, Sun XJ, Zhou Y, Yang F, Hsu CH, Xu PF. Tanshinone I, a new EZH2 inhibitor restricts normal and malignant hematopoiesis through upregulation of MMP9 and ABCG2. Theranostics 2021; 11:6891-6904. [PMID: 34093860 PMCID: PMC8171091 DOI: 10.7150/thno.53170] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 04/19/2021] [Indexed: 12/11/2022] Open
Abstract
Rationale: Tanshinone, a type of diterpenes derived from salvia miltiorrhiza, is a particularly promising herbal medicine compound for the treatment of cancers including acute myeloid leukemia (AML). However, the therapeutic function and the underlying mechanism of Tanshinone in AML are not clear, and the toxic effect of Tanshinone limits its clinical application. Methods: Our work utilizes human leukemia cell lines, zebrafish transgenics and xenograft models to study the cellular and molecular mechanisms of how Tanshinone affects normal and abnormal hematopoiesis. WISH, Sudan Black and O-Dianisidine Staining were used to determine the expression of hematopoietic genes on zebrafish embryos. RNA-seq analysis showed that differential expression genes and enrichment gene signature with Tan I treatment. The surface plasmon resonance (SPR) method was used with a BIAcore T200 (GE Healthcare) to measure the binding affinities of Tan I. In vitro methyltransferase assay was performed to verify Tan I inhibits the histone enzymatic activity of the PRC2 complex. ChIP-qPCR assay was used to determine the H3K27me3 level of EZH2 target genes. Results: We found that Tanshinone I (Tan I), one of the Tanshinones, can inhibit the proliferation of human leukemia cells in vitro and in the xenograft zebrafish model, as well as the normal and malignant definitive hematopoiesis in zebrafish. Mechanistic studies illustrate that Tan I regulates normal and malignant hematopoiesis through direct binding to EZH2, a well-known histone H3K27 methyltransferase, and inhibiting PRC2 enzymatic activity. Furthermore, we identified MMP9 and ABCG2 as two possible downstream genes of Tan I's effects on EZH2. Conclusions: Together, this study confirmed that Tan I is a novel EZH2 inhibitor and suggested MMP9 and ABCG2 as two potential therapeutic targets for myeloid malignant diseases.
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Affiliation(s)
- Ying Huang
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shan-He Yu
- State Key Laboratory for Medical Genomics, National Research Center for Translational Medicine at Shanghai, Shanghai Institute of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Wen-Xuan Zhen
- Department of biophysics and Kidney Disease Center of the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Tao Cheng
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Dan Wang
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jie-Bo Lin
- Women's Hospital, and Institute of Genetics, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Yu-Han Wu
- College of Pharmaceutical Sciences, Zhejiang University
| | - Yi-Fan Wang
- Zhejiang University-University of Edinburgh united Institute
| | - Yi Chen
- State Key Laboratory for Medical Genomics, National Research Center for Translational Medicine at Shanghai, Shanghai Institute of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Li-Ping Shu
- Key Laboratory of Adult Stem Cell Translational Research, Chinese Academy of Medical Sciences, National & Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Guizhou Province Key Laboratory of Regenerative Medicine, Guizhou Medical University, Guiyang, Guizhou, China, 550004
| | - Yi Wang
- College of Pharmaceutical Sciences, Zhejiang University
| | - Xiao-Jian Sun
- State Key Laboratory for Medical Genomics, National Research Center for Translational Medicine at Shanghai, Shanghai Institute of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Yi Zhou
- Harvard Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital, Pediatric Hematology/Oncology at Dana Farber Cancer Institute, Harvard Stem Cell Institute, Harvard Medical School and Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Fan Yang
- Department of biophysics and Kidney Disease Center of the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Chih-Hung Hsu
- Women's Hospital, and Institute of Genetics, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Peng-Fei Xu
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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13
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Chen J, Tchivelekete GM, Zhou X, Tang W, Liu F, Liu M, Zhao C, Shu X, Zeng Z. Anti-inflammatory activities of Gardenia jasminoides extracts in retinal pigment epithelial cells and zebrafish embryos. Exp Ther Med 2021; 22:700. [PMID: 34007309 PMCID: PMC8120509 DOI: 10.3892/etm.2021.10132] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 03/19/2021] [Indexed: 12/15/2022] Open
Abstract
Age-related macular degeneration (AMD) is the most common cause of visual impairment in developed countries. Inflammation serves a critical role in the pathogenesis of AMD. Gardenia jasminoides is found in several regions of China and is traditionally used as an organic yellow dye but has also been widely used as a therapeutic agent in numerous diseases, including inflammation, depression, hepatic and vascular disorders, which may reflect the variability of functional compounds that are present in Gardenia jasminoides extracts (GJE). To investigate the therapeutic potential of GJE for AMD, ARPE-19 cells were treated with lipopolysaccharide (LPS) or LPS plus GJE. GJE significantly decreased LPS-induced expression of proinflammatory cytokines, including IL-1β, IL-6 and TNF-α. In the in vivo study, GJE inhibited CuSO4-induced migration of primitive macrophages to the lateral line in zebrafish embryos. GJE also attenuated expression of cytokines (IL-1β, IL-6 and TNF-α), NFKB activating protein (nkap) and TLR4 in ARPE-19 cells. The results of the present study demonstrated the anti-inflammatory potential of GJE in vitro and in vivo, and suggested GJE as a therapeutic candidate for AMD.
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Affiliation(s)
- Jianrong Chen
- College of Biological and Environmental Engineering, Changsha University, Changsha, Hunan 410022, P.R. China
| | | | - Xinzhi Zhou
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow, G4 0BA, UK
| | - Weizhuo Tang
- College of Biological and Environmental Engineering, Changsha University, Changsha, Hunan 410022, P.R. China
| | - Fang Liu
- College of Biological and Environmental Engineering, Changsha University, Changsha, Hunan 410022, P.R. China
| | - Minzhuo Liu
- College of Biological and Environmental Engineering, Changsha University, Changsha, Hunan 410022, P.R. China
| | - Chenxi Zhao
- College of Biological and Environmental Engineering, Changsha University, Changsha, Hunan 410022, P.R. China
| | - Xinhua Shu
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow, G4 0BA, UK.,Department of Vision Science, Glasgow Caledonian University, Glasgow, G4 0BA, UK.,School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Zhihong Zeng
- College of Biological and Environmental Engineering, Changsha University, Changsha, Hunan 410022, P.R. China.,Hunan Provincial Key Laboratory of Nutrition and Quality Control Aquatic Animals, Changsha, Hunan 410022, P.R. China
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14
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Xie Y, Meijer AH, Schaaf MJM. Modeling Inflammation in Zebrafish for the Development of Anti-inflammatory Drugs. Front Cell Dev Biol 2021; 8:620984. [PMID: 33520995 PMCID: PMC7843790 DOI: 10.3389/fcell.2020.620984] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 12/18/2020] [Indexed: 12/16/2022] Open
Abstract
Dysregulation of the inflammatory response in humans can lead to various inflammatory diseases, like asthma and rheumatoid arthritis. The innate branch of the immune system, including macrophage and neutrophil functions, plays a critical role in all inflammatory diseases. This part of the immune system is well-conserved between humans and the zebrafish, which has emerged as a powerful animal model for inflammation, because it offers the possibility to image and study inflammatory responses in vivo at the early life stages. This review focuses on different inflammation models established in zebrafish, and how they are being used for the development of novel anti-inflammatory drugs. The most commonly used model is the tail fin amputation model, in which part of the tail fin of a zebrafish larva is clipped. This model has been used to study fundamental aspects of the inflammatory response, like the role of specific signaling pathways, the migration of leukocytes, and the interaction between different immune cells, and has also been used to screen libraries of natural compounds, approved drugs, and well-characterized pathway inhibitors. In other models the inflammation is induced by chemical treatment, such as lipopolysaccharide (LPS), leukotriene B4 (LTB4), and copper, and some chemical-induced models, such as treatment with trinitrobenzene sulfonic acid (TNBS), specifically model inflammation in the gastro-intestinal tract. Two mutant zebrafish lines, carrying a mutation in the hepatocyte growth factor activator inhibitor 1a gene (hai1a) and the cdp-diacylglycerolinositol 3-phosphatidyltransferase (cdipt) gene, show an inflammatory phenotype, and they provide interesting model systems for studying inflammation. These zebrafish inflammation models are often used to study the anti-inflammatory effects of glucocorticoids, to increase our understanding of the mechanism of action of this class of drugs and to develop novel glucocorticoid drugs. In this review, an overview is provided of the available inflammation models in zebrafish, and how they are used to unravel molecular mechanisms underlying the inflammatory response and to screen for novel anti-inflammatory drugs.
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Affiliation(s)
- Yufei Xie
- Institute of Biology Leiden, Leiden University, Leiden, Netherlands
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15
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T6SS Mediated Stress Responses for Bacterial Environmental Survival and Host Adaptation. Int J Mol Sci 2021; 22:ijms22020478. [PMID: 33418898 PMCID: PMC7825059 DOI: 10.3390/ijms22020478] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/25/2020] [Accepted: 01/01/2021] [Indexed: 02/07/2023] Open
Abstract
The bacterial type VI secretion system (T6SS) is a protein secretion apparatus widely distributed in Gram-negative bacterial species. Many bacterial pathogens employ T6SS to compete with the host and to coordinate the invasion process. The T6SS apparatus consists of a membrane complex and an inner tail tube-like structure that is surrounded by a contractile sheath and capped with a spike complex. A series of antibacterial or antieukaryotic effectors is delivered by the puncturing device consisting of a Hcp tube decorated by the VgrG/PAAR complex into the target following the contraction of the TssB/C sheath, which often leads to damage and death of the competitor and/or host cells. As a tool for protein secretion and interspecies interactions, T6SS can be triggered by many different mechanisms to respond to various physiological conditions. This review summarizes our current knowledge of T6SS in coordinating bacterial stress responses against the unfavorable environmental and host conditions.
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16
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Zhang L, Chen J, Liao H, Li C, Chen M. Anti-inflammatory effect of lipophilic grape seed proanthocyanidin in RAW 264.7 cells and a zebrafish model. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104217] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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17
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He M, Halima M, Xie Y, Schaaf MJM, Meijer AH, Wang M. Ginsenoside Rg1 Acts as a Selective Glucocorticoid Receptor Agonist with Anti-Inflammatory Action without Affecting Tissue Regeneration in Zebrafish Larvae. Cells 2020; 9:cells9051107. [PMID: 32365641 PMCID: PMC7290513 DOI: 10.3390/cells9051107] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/22/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
Glucocorticoids are effective anti-inflammatory drugs, but their clinical use is complicated due to the wide range of side effects they induce. Patients requiring glucocorticoid therapy would benefit from more selective glucocorticoid receptor (GR) agonists, capable of attenuating the immune response without causing these side effects. Ginsenosides, such as the compound Rg1, are natural plant compounds with structural similarity to classical glucocorticoids and well-documented anti-inflammatory effects. Here, we have investigated the activity of the ginsenoside Rg1 using a zebrafish larval model, in which amputation of the tail fin allows us to assess drug effects on inflammation, while the ability to regenerate the wounded tissue serves as a readout for side effects. We found that Rg1 attenuates neutrophilic inflammation at the amputation site, similarly to a classical glucocorticoid, beclomethasone. Mutation of the Gr abolishes this anti-inflammatory effect of Rg1. Rg1 and beclomethasone differentially modulate gene expression, suggesting that Rg1 induces transrepression, but not transactivation, activity of Gr. Interestingly, we found no effect of Rg1 on tissue regeneration, whereas beclomethasone inhibits tissue regeneration entirely. We conclude that Rg1 is a promising candidate for development as a selective glucocorticoid drug, and that zebrafish larvae provide a useful model system for screening of such GR agonists.
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Affiliation(s)
- Min He
- Institute of Biology Leiden, Leiden University, 2333CC Leiden, The Netherlands; (M.H.); (M.H.); (Y.X.)
- Leiden University—European Center for Chinese Medicine, Leiden University, 2333CC Leiden, The Netherlands
| | - Mahmoud Halima
- Institute of Biology Leiden, Leiden University, 2333CC Leiden, The Netherlands; (M.H.); (M.H.); (Y.X.)
- Leiden University—European Center for Chinese Medicine, Leiden University, 2333CC Leiden, The Netherlands
| | - Yufei Xie
- Institute of Biology Leiden, Leiden University, 2333CC Leiden, The Netherlands; (M.H.); (M.H.); (Y.X.)
| | - Marcel J. M. Schaaf
- Institute of Biology Leiden, Leiden University, 2333CC Leiden, The Netherlands; (M.H.); (M.H.); (Y.X.)
- Correspondence: (M.J.M.S.); (A.H.M.); (M.W.)
| | - Annemarie H. Meijer
- Institute of Biology Leiden, Leiden University, 2333CC Leiden, The Netherlands; (M.H.); (M.H.); (Y.X.)
- Correspondence: (M.J.M.S.); (A.H.M.); (M.W.)
| | - Mei Wang
- Institute of Biology Leiden, Leiden University, 2333CC Leiden, The Netherlands; (M.H.); (M.H.); (Y.X.)
- Leiden University—European Center for Chinese Medicine, Leiden University, 2333CC Leiden, The Netherlands
- Correspondence: (M.J.M.S.); (A.H.M.); (M.W.)
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18
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Wu Y, Xia Y, Li P, Qu HQ, Liu Y, Yang Y, Lin J, Zheng M, Tian L, Wu Z, Huang S, Qin X, Zhou X, Chen S, Liu Y, Wang Y, Li X, Zeng H, Hakonarson H, Zhuang J. Role of the ADCY9 gene in cardiac abnormalities of the Rubinstein-Taybi syndrome. Orphanet J Rare Dis 2020; 15:101. [PMID: 32321550 PMCID: PMC7178576 DOI: 10.1186/s13023-020-01378-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/07/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rubinstein-Taybi syndrome (RTS) is a rare, congenital, plurimalformative, and neurodevelopmental disorder. Previous studies have reported that large deletions contribute to more severe RTS phenotypes than those caused by CREBBP point mutations, suggesting a concurrent pathogenetic role of flanking genes, typical of contiguous gene syndromes, but the detailed genetics are unclear. RESULTS This study presented a rare case of Rubinstein-Taybi (RT) syndrome with serious cardiac abnormalities. Based on the clinical and genetic analysis of the patient, the ADCY9 gene deletion was highlighted as a plausible explanation of cardiac abnormalities. In adcy9 morphant zebrafish, cardiac malformation was observed. Immunofluorescence study disclosed increased macrophage migration and cardiac apoptosis. RNA sequencing in zebrafish model highlighted the changes of a number of genes, including increased expression of the mmp9 gene which encodes a matrix metalloproteinase with the main function to degrade and remodel extracellular matrix. CONCLUSIONS In this study, we identified a plausible new candidate gene ADCY9 of CHD through the clinical and genetic analysis of a rare case of Rubinstein-Taybi (RT) syndrome with serious cardiac abnormalities. By functional study of zebrafish, we demonstrated that deletion of adcy9 is the causation for the cardiac abnormalities. Cardiac apoptosis and increased expression of the MMP9 gene are involved in the pathogenesis.
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Affiliation(s)
- Yueheng Wu
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.,Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Yu Xia
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ping Li
- Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Hui-Qi Qu
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Yichuan Liu
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Yongchao Yang
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Jijin Lin
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Meng Zheng
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Lifeng Tian
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Zhuanbin Wu
- Shanghai Model Organisms Center Inc, Shanghai, China
| | - Shufang Huang
- Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Xianyu Qin
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Xianwu Zhou
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Shaoxian Chen
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Yanying Liu
- Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Yonghua Wang
- Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Xiaofeng Li
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Hanshi Zeng
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Hakon Hakonarson
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA. .,Department of Pediatrics and Division of Human Genetics, University of Pennsylvania, Philadelphia, PA, USA.
| | - Jian Zhuang
- Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.
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19
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García-López JP, Vilos C, Feijóo CG. Zebrafish, a model to develop nanotherapeutics that control neutrophils response during inflammation. J Control Release 2019; 313:14-23. [PMID: 31622693 DOI: 10.1016/j.jconrel.2019.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 10/02/2019] [Accepted: 10/07/2019] [Indexed: 01/26/2023]
Abstract
Neutrophils are crucial modulators of the inflammation process, and their uncontrolled response worsens several chronic pathologies. The p38 mitogen-activated protein kinases (MAPKs) activity is critical for normal immune and inflammatory response through the regulation of pro-inflammatory cytokines synthesis. In this work, we study the effect of hybrid lipid-polymer nanoparticles loaded with the p38 MAPK inhibitor SB203580 in an acute and chronic inflammatory model in zebrafish containing a transgenic neutrophil cell line that constitutively expresses a green fluorescent protein. We identify the existence of at least two neutrophils subpopulation involved in the response during the acute inflammation triggered; a first-responder p38α-independent subset and a second-responder p38α-dependent subset. In the case of chronic inflammation, neutrophils recruited in the intestine only during the inflammation process, migrate in a p38α-dependent manner. Likewise, we establish that SB203580-loaded in NPs exerts their action during at least a double period than the inhibitor administers directly in both types of inflammation. Our results demonstrate the exceptional potential of the zebrafish as an inflammatory model for studying novel nanotherapeutics that selectively inhibit the neutrophils response, and to identify functional neutrophils subpopulations involved in the inflammation process.
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Affiliation(s)
- Juan P García-López
- Fish Immunology Laboratory, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile; Laboratory of Nanomedicine and Targeted Delivery, Center for Medical Research, School of Medicine, Universidad de Talca, 2 Norte 685, Talca 3460000, Chile
| | - Cristian Vilos
- Laboratory of Nanomedicine and Targeted Delivery, Center for Medical Research, School of Medicine, Universidad de Talca, 2 Norte 685, Talca 3460000, Chile; Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, 9170124, Santiago, Chile.
| | - Carmen G Feijóo
- Fish Immunology Laboratory, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
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20
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Tan J, Yang D, Wang Z, Zheng X, Zhang Y, Liu Q. EvpP inhibits neutrophils recruitment via Jnk-caspy inflammasome signaling in vivo. FISH & SHELLFISH IMMUNOLOGY 2019; 92:851-860. [PMID: 31129187 DOI: 10.1016/j.fsi.2019.05.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/22/2019] [Accepted: 05/22/2019] [Indexed: 06/09/2023]
Abstract
Innate immunity is regulated by phagocytic cells and is critical for host control of bacterial infection. In many bacteria, the type VI secretion system (T6SS) can affect bacterial virulence in certain environments, but little is known about the mechanisms underlying T6SS regulation of innate immune responses during infection in vivo. Here, we developed an infection model by microinjecting bacteria into the tail vein muscle of 3-day-post-fertilized zebrafish larvae, and found that both macrophages and neutrophils are essential for bacterial clearance. Further study revealed that EvpP plays a critical role in promoting the pathogenesis of Edwardsiella piscicida (E. piscicida) via inhibiting the phosphorylation of Jnk signaling to reduce the expression of chemokine (CXC motif) ligand 8 (cxcl8a), matrix metallopeptidase 13 (mmp13) and interleukin-1β (IL-1β) in vivo. Subsequently, by utilizing Tg (mpo:eGFP+/+) zebrafish larvae for E. piscicida infection, we found that the EvpP-inhibited Jnk-caspy (caspase-1 homolog) inflammasome signaling axis significantly suppressed the recruitment of neutrophils to infection sites, and the caspy- or IL-1β-morpholino (MO) knockdown larvae were more susceptible to infection and failed to restrict bacterial colonization in vivo. taken together, this interaction improves our understanding about the complex and contextual role of a bacterial T6SS effector in modulating the action of neutrophils during infection, and offers new insights into the warfare between bacterial weapons and host immunological surveillance.
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Affiliation(s)
- Jinchao Tan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Dahai Yang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China
| | - Zhuang Wang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xin Zheng
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yuanxing Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China
| | - Qin Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China.
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21
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Xu S, Liu C, Xie F, Tian L, Manno SH, Manno FAM, Fallah S, Pelster B, Tse G, Cheng SH. Excessive inflammation impairs heart regeneration in zebrafish breakdance mutant after cryoinjury. FISH & SHELLFISH IMMUNOLOGY 2019; 89:117-126. [PMID: 30928664 DOI: 10.1016/j.fsi.2019.03.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/18/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
Inflammation plays a crucial role in cardiac regeneration. Numerous advantages, including a robust regenerative ability, make the zebrafish a popular model to study cardiovascular diseases. The zebrafish breakdance (bre) mutant shares several key features with human long QT syndrome that predisposes to ventricular arrhythmias and sudden death. However, how inflammatory response and tissue regeneration following cardiac damage occur in bre mutant is unknown. Here, we have found that inflammatory response related genes were markedly expressed in the injured heart and excessive leukocyte accumulation occurred in the injured area of the bre mutant zebrafish. Furthermore, bre mutant zebrafish exhibited aberrant apoptosis and impaired heart regenerative ability after ventricular cryoinjury. Mild dosages of anti-inflammatory or prokinetic drugs protected regenerative cells from undergoing aberrant apoptosis and promoted heart regeneration in bre mutant zebrafish. We propose that immune or prokinetic therapy could be a potential therapeutic regimen for patients with genetic long QT syndrome who suffers from myocardial infarction.
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Affiliation(s)
- Shisan Xu
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Chichi Liu
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Fangjing Xie
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Li Tian
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Sinai Hc Manno
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Francis A M Manno
- Department of Physics, College of Science and Engineering, City University of Hong Kong, Hong Kong SAR, PR China
| | - Samane Fallah
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China
| | - Bernd Pelster
- Institut für Zoologie, Universität Innsbruck, Center for Molecular Biosciences, Universität Innsbruck, Innsbruck, Austria.
| | - Gary Tse
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, PR China; Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, PR China; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, PR China.
| | - Shuk Han Cheng
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Science, City University of Hong Kong, Hong Kong SAR, PR China; State Key Laboratory of Marine Pollution (SKLMP) at City University of Hong Kong, Hong Kong SAR, PR China; Department of Materials Science and Engineering, College of Science and Engineering, City University of Hong Kong, Hong Kong SAR, PR China.
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22
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Xie Y, Tolmeijer S, Oskam JM, Tonkens T, Meijer AH, Schaaf MJM. Glucocorticoids inhibit macrophage differentiation towards a pro-inflammatory phenotype upon wounding without affecting their migration. Dis Model Mech 2019; 12:dmm.037887. [PMID: 31072958 PMCID: PMC6550045 DOI: 10.1242/dmm.037887] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 04/24/2019] [Indexed: 12/18/2022] Open
Abstract
Glucocorticoid drugs are widely used to treat immune-related diseases, but their use is limited by side effects and by resistance, which especially occurs in macrophage-dominated diseases. In order to improve glucocorticoid therapies, more research is required into the mechanisms of glucocorticoid action. In the present study, we have used a zebrafish model for inflammation to study glucocorticoid effects on the innate immune response. In zebrafish larvae, the migration of neutrophils towards a site of injury is inhibited upon glucocorticoid treatment, whereas migration of macrophages is glucocorticoid resistant. We show that wounding-induced increases in the expression of genes that encode neutrophil-specific chemoattractants (Il8 and Cxcl18b) are attenuated by the synthetic glucocorticoid beclomethasone, but that beclomethasone does not attenuate the induction of the genes encoding Ccl2 and Cxcl11aa, which are required for macrophage recruitment. RNA sequencing on FACS-sorted macrophages shows that the vast majority of the wounding-induced transcriptional changes in these cells are inhibited by beclomethasone, whereas only a small subset is glucocorticoid-insensitive. As a result, beclomethasone decreases the number of macrophages that differentiate towards a pro-inflammatory (M1) phenotype, which we demonstrated using a tnfa:eGFP-F reporter line and analysis of macrophage morphology. We conclude that differentiation and migration of macrophages are regulated independently, and that glucocorticoids leave the chemotactic migration of macrophages unaffected, but exert their anti-inflammatory effect on these cells by inhibiting their differentiation to an M1 phenotype. The resistance of macrophage-dominated diseases to glucocorticoid therapy can therefore not be attributed to an intrinsic insensitivity of macrophages to glucocorticoids. Summary: In a zebrafish model for inflammation, glucocorticoids do not affect the migration of macrophages, but inhibit their differentiation towards an M1 phenotype, by strongly attenuating transcriptional responses in these cells.
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Affiliation(s)
- Yufei Xie
- Animal Science and Health Cluster, Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
| | - Sofie Tolmeijer
- Animal Science and Health Cluster, Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
| | - Jelle M Oskam
- Animal Science and Health Cluster, Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
| | - Tijs Tonkens
- Animal Science and Health Cluster, Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
| | - Annemarie H Meijer
- Animal Science and Health Cluster, Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
| | - Marcel J M Schaaf
- Animal Science and Health Cluster, Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
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23
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Kim GR, Yang JY, Hwang KS, Kim SS, Chae JS, Kan H, Ahn JH, Lee WM, Ahn SH, Lee YM, Bae MA, Shin DS. Anti-inflammatory effect of a novel synthetic compound 1-((4-fluorophenyl)thio)isoquinoline in RAW264.7 macrophages and a zebrafish model. FISH & SHELLFISH IMMUNOLOGY 2019; 87:395-400. [PMID: 30685466 DOI: 10.1016/j.fsi.2019.01.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 12/27/2018] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
The compound, 1-((4-fluorophenyl)thio)isoquinoline (FPTQ), is a synthetic isoquinoline derivative. To test the anti-inflammatory effect of FPTQ, we used neutrophil-specific transgenic zebrafish Tg(mpx::EGFP)i114 line and lipopolysaccharide (LPS)-stimulated RAW264.7 cells. We also used two different methods, involving tail transection and LPS stimulation in the zebrafish model. Neutrophils translocation in the zebrafish tail-transected model was inhibited by FPTQ. Neutrophil aggregation was also inhibited by FPTQ in the LPS-stimulated zebrafish model. Decreased mRNA expression of the pro-inflammatory cytokine genes, interleukin-1β (il-1β) and interleukin-6 (il-6), was found in zebrafish larvae injected with FPTQ. Additionally, production of nitric oxide was inhibited by FPTQ in RAW264.7 macrophage cells treated with LPS. Moreover, the mRNA expression of Il-1β and Il-6 suppressed by FPTQ treatment in RAW264.7 macrophage cells, and an enzyme immunoassay showed that FPTQ suppressed the secretion of IL-1β and IL-6 in RAW264.7 cells. These results demonstrate that FPTQ reduced inflammatory responses and, therefore, suggest that it may be effective as an anti-inflammatory agent.
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Affiliation(s)
- Geum Ran Kim
- Bio Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea; College of Pharmacy, Chungbuk National University, Cheongju, 28160, South Korea
| | - Jung Yoon Yang
- Bio Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea
| | - Kyu-Seok Hwang
- Bio Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea
| | - Seong Soon Kim
- Bio Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea
| | - Jin Sil Chae
- Bio Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea
| | - Hyemin Kan
- Bio Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea
| | - Jin Hee Ahn
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - Won Mi Lee
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - Se Hwan Ahn
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - Yong-Moon Lee
- College of Pharmacy, Chungbuk National University, Cheongju, 28160, South Korea
| | - Myung Ae Bae
- Bio Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea; Department of Medicinal Chemistry and Pharmacology, University of Science & Technology, Daejeon, 34114, South Korea.
| | - Dae-Seop Shin
- Bio Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea.
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24
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Ren C, Yuan Q, Braun M, Zhang X, Petri B, Zhang J, Kim D, Guez-Haddad J, Xue W, Pan W, Fan R, Kubes P, Sun Z, Opatowsky Y, Polleux F, Karatekin E, Tang W, Wu D. Leukocyte Cytoskeleton Polarization Is Initiated by Plasma Membrane Curvature from Cell Attachment. Dev Cell 2019; 49:206-219.e7. [PMID: 30930167 DOI: 10.1016/j.devcel.2019.02.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 01/15/2019] [Accepted: 02/25/2019] [Indexed: 12/30/2022]
Abstract
Cell polarization is important for various biological processes. However, its regulation, particularly initiation, is incompletely understood. Here, we investigated mechanisms by which neutrophils break their symmetry and initiate their cytoskeleton polarization from an apolar state in circulation for their extravasation during inflammation. We show here that a local increase in plasma membrane (PM) curvature resulting from cell contact to a surface triggers the initial breakage of the symmetry of an apolar neutrophil and is required for subsequent polarization events induced by chemical stimulation. This local increase in PM curvature recruits SRGAP2 via its F-BAR domain, which in turn activates PI4KA and results in PM PtdIns4P polarization. Polarized PM PtdIns4P is targeted by RPH3A, which directs PIP5K1C90 and subsequent phosphorylated myosin light chain polarization, and this polarization signaling axis regulates neutrophil firm attachment to endothelium. Thus, this study reveals a mechanism for the initiation of cell cytoskeleton polarization.
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Affiliation(s)
- Chunguang Ren
- Department of Pharmacology, Vascular Biology and Therapeutic Program, Yale University, New Haven, CT 06520, USA
| | - Qianying Yuan
- Department of Pharmacology, Vascular Biology and Therapeutic Program, Yale University, New Haven, CT 06520, USA
| | - Martha Braun
- Department of Cellular and Molecular Physiology, Yale University, New Haven, CT 06520, USA; Nanobiology Institute, Yale University, New Haven, CT 06520, USA; Department of Molecular Biophysics and Biochemistry, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Xia Zhang
- Department of Geriatrics, the First affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Björn Petri
- Snyder Institute for Chronic Diseases Mouse Phenomics Resource Laboratory, University of Calgary, Calgary AB T2N 4N1, Canada; Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary AB T2N 4N1, Canada
| | - Jiasheng Zhang
- Department of Internal Medicine, Yale University, New Haven, CT 06520, USA
| | - Dongjoo Kim
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Julia Guez-Haddad
- The Mina & Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Wenzhi Xue
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Weijun Pan
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - Rong Fan
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Paul Kubes
- Snyder Institute for Chronic Diseases Mouse Phenomics Resource Laboratory, University of Calgary, Calgary AB T2N 4N1, Canada; Department of Physiology and Pharmacology, Cumming School of Medicine, and Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary AB T2N 4N1, Canada
| | - Zhaoxia Sun
- Department of Genetics, Yale University, New Haven, CT 06520, USA
| | - Yarden Opatowsky
- The Mina & Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Franck Polleux
- Department of Neuroscience, Mortimer B. Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY 10025, USA
| | - Erdem Karatekin
- Department of Cellular and Molecular Physiology, Yale University, New Haven, CT 06520, USA; Nanobiology Institute, Yale University, New Haven, CT 06520, USA; Department of Molecular Biophysics and Biochemistry, Yale School of Medicine, Yale University, New Haven, CT 06520, USA; Centre National de la Recherche Scientifique (CNRS), Paris, France.
| | - Wenwen Tang
- Department of Pharmacology, Vascular Biology and Therapeutic Program, Yale University, New Haven, CT 06520, USA.
| | - Dianqing Wu
- Department of Pharmacology, Vascular Biology and Therapeutic Program, Yale University, New Haven, CT 06520, USA.
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25
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Chen Y, Fu WL, Gan XD, Xing WW, Xia WR, Zou MJ, Liu Q, Wang YY, Zhang C, Xu DG. SAK-HV Promotes RAW264.7 cells Migration Mediated by MCP-1 via JNK and NF-κB Pathways. Int J Biol Sci 2018; 14:1993-2002. [PMID: 30585263 PMCID: PMC6299369 DOI: 10.7150/ijbs.27459] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 09/25/2018] [Indexed: 12/14/2022] Open
Abstract
Macrophage migration plays an essential role in immune system and is also involved in many pathological situations. However, the regulatory mechanism of macrophage migration remains to be elucidated due to its diverse responses to various stimuli. SAK-HV, a multifunctional protein possessing thrombolytic and lipid-lowering activity, can selectively induce the macrophage proliferation. Here, we reported SAK-HV significantly triggered RAW264.7 cells migration through its functional domain of SAK-mutant by activating both c-jun N-terminal kinases (JNK) and nuclear factor-κB (NF-κB) pathways. Meanwhile, SAK-HV upregulated the expression of some effector proteins, among which only the expression of Monocyte chemoattractant protein-1 (MCP-1) was inhibited by the blockade of JNK and NF-κB pathways. Further research showed that MCP-1 promoted migration ultimately by interacting with Chemokine (C-C motif) Receptor 2 (CCR2) in an autocrine manner. In summary, SAK-HV induced RAW264.7 cells migration through its SAK-mutant domain, during which MCP-1 chemokine mediated by JNK and NF-κB pathways played a key role. These results revealed a novel effect of SAK-HV on modulating macrophage migration and also deepened the understanding of its pharmacodynamics.
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Affiliation(s)
- Yao Chen
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
| | - Wen-Liang Fu
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
| | - Xiang-Dong Gan
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
| | - Wei-Wei Xing
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
| | - Wen-Rong Xia
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
| | - Min-Ji Zou
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
| | - Qing Liu
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
| | - Yuan-Yuan Wang
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
| | - Chao Zhang
- Division of Oncology Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Dong-Gang Xu
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, China
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26
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Edwardsiella piscicida Type III Secretion System Effector EseK Inhibits Mitogen-Activated Protein Kinase Phosphorylation and Promotes Bacterial Colonization in Zebrafish Larvae. Infect Immun 2018; 86:IAI.00233-18. [PMID: 29986890 DOI: 10.1128/iai.00233-18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/01/2018] [Indexed: 12/21/2022] Open
Abstract
Bacteria utilize type III secretion systems (T3SS) to deliver effectors directly into host cells. Hence, it is very important to identify the functions of bacterial (T3SS) effectors to understand host-pathogen interactions. Edwardsiella piscicida encodes a functional T3SS effector, EseK, which can be translocated into host cells and affect bacterial loads. Here, it was demonstrated that an eseK mutant (the ΔeseK mutant) significantly increased the phosphorylation levels of p38α, c-Jun NH2-terminal kinases (JNK), and extracellular signal-regulated protein kinases 1/2 (ERK1/2) in HeLa cells. Overexpression of EseK directly inhibited mitogen-activated protein kinase (MAPK) signaling pathways in HEK293T cells. The ΔeseK mutant consistently promoted the phosphorylation of MAPKs in zebrafish larva infection models. Further, it was shown that the ΔeseK mutant increased the expression of tumor necrosis factor alpha (TNF-α) in an MAPK-dependent manner. Importantly, the EseK-mediated inhibition of MAPKs in vivo attenuated bacterial clearance in larvae. Taken together, this work reveals that the E. piscicida T3SS effector EseK promotes bacterial infection by inhibiting MAPK activation, which provides insights into the molecular pathogenesis of E. piscicida in fish.
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27
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Yu SH, Zhu KY, Zhang F, Wang J, Yuan H, Chen Y, Jin Y, Dong M, Wang L, Jia XE, Gao L, Dong ZW, Ren CG, Chen LT, Huang QH, Deng M, Zon LI, Zhou Y, Zhu J, Xu PF, Liu TX. The histone demethylase Jmjd3 regulates zebrafish myeloid development by promoting spi1 expression. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2018; 1861:106-116. [PMID: 29378332 DOI: 10.1016/j.bbagrm.2017.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/29/2017] [Accepted: 12/20/2017] [Indexed: 01/01/2023]
Abstract
The histone demethylase Jmjd3 plays a critical role in cell lineage specification and differentiation at various stages of development. However, its function during normal myeloid development remains poorly understood. Here, we carried out a systematic in vivo screen of epigenetic factors for their function in hematopoiesis and identified Jmjd3 as a new epigenetic factor that regulates myelopoiesis in zebrafish. We demonstrated that jmjd3 was essential for zebrafish primitive and definitive myelopoiesis, knockdown of jmjd3 suppressed the myeloid commitment and enhanced the erythroid commitment. Only overexpression of spi1 but not the other myeloid regulators rescued the myeloid development in jmjd3 morphants. Furthermore, preliminary mechanistic studies demonstrated that Jmjd3 could directly bind to the spi1 regulatory region to alleviate the repressive H3K27me3 modification and activate spi1 expression. Thus, our studies highlight that Jmjd3 is indispensable for early zebrafish myeloid development by promoting spi1 expression.
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Affiliation(s)
- Shan-He Yu
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Collaborative Innovation Center of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China.
| | - Kang-Yong Zhu
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
| | - Fan Zhang
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Collaborative Innovation Center of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Juan Wang
- Department of Bioinformatics, School of Life Science and Technology, Tongji University, Shanghai 200092, China
| | - Hao Yuan
- Sino-French Research Center for Life Sciences and Genomics, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yi Chen
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Collaborative Innovation Center of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Yi Jin
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Collaborative Innovation Center of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Mei Dong
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
| | - Lei Wang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
| | - Xiao-E Jia
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
| | - Lei Gao
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
| | - Zhi-Wei Dong
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
| | - Chun-Guang Ren
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
| | - Li-Ting Chen
- Tongji hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qiu-Hua Huang
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Collaborative Innovation Center of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Min Deng
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
| | - Leonard I Zon
- Harvard Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital, Pediatric Hematology/Oncology at Dana Farber Cancer Institute, Harvard Stem Cell Institute, Harvard Medical School and Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Yi Zhou
- Harvard Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital, Pediatric Hematology/Oncology at Dana Farber Cancer Institute, Harvard Stem Cell Institute, Harvard Medical School and Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Jiang Zhu
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Collaborative Innovation Center of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China.
| | - Peng-Fei Xu
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Collaborative Innovation Center of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China.
| | - Ting-Xi Liu
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, Collaborative Innovation Center of Hematology, Rui-Jin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai 200031, China
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Ye B, Xiong X, Deng X, Gu L, Wang Q, Zeng Z, Gao X, Gao Q, Wang Y. Meisoindigo, but not its core chemical structure indirubin, inhibits zebrafish interstitial leukocyte chemotactic migration. PHARMACEUTICAL BIOLOGY 2017; 55:673-679. [PMID: 27981893 PMCID: PMC6130669 DOI: 10.1080/13880209.2016.1238949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 09/16/2016] [Indexed: 06/01/2023]
Abstract
CONTEXT Inflammatory disease is a big threat to human health. Leukocyte chemotactic migration is required for efficient inflammatory response. Inhibition of leukocyte chemotactic migration to the inflammatory site has been shown to provide therapeutic targets for treating inflammatory diseases. OBJECTIVE Our study was designed to discover effective and safe compounds that can inhibit leukocyte chemotactic migration, thus providing possible novel therapeutic strategy for treating inflammatory diseases. MATERIALS AND METHODS In this study, we used transgenic zebrafish model (Tg:zlyz-EGFP line) to visualize the process of leukocyte chemotactic migration. Then, we used this model to screen the hit compound and evaluate its biological activity on leukocyte chemotactic migration. Furthermore, western blot analysis was performed to evaluate the effect of the hit compound on the AKT or ERK-mediated pathway, which plays an important role in leukocyte chemotactic migration. RESULTS In this study, using zebrafish-based chemical screening, we identified that the hit compound meisoindigo (25 μM, 50 μM, 75 μM) can significantly inhibit zebrafish leukocyte chemotactic migration in a dose-dependent manner (p = 0.01, p = 0.0006, p < 0.0001). Also, we found that meisoindigo did not affect the process of leukocyte reverse migration (p = 0.43). Furthermore, our results unexpectedly showed that indirubin, the core structure of meisoindigo, had no significant effect on zebrafish leukocyte chemotactic migration (p = 0.6001). Additionally, our results revealed that meisoindigo exerts no effect on the Akt or Erk-mediated signalling pathway. DISCUSSION AND CONCLUSION Our results suggest that meisoindigo, but not indirubin, is effective for inhibiting leukocyte chemotactic migration, thus providing a potential therapeutic agent for treating inflammatory diseases.
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Affiliation(s)
- Baixin Ye
- Department of Hematology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xu Deng
- College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei, China
| | - Lijuan Gu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qiongyu Wang
- Department of Hematology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhi Zeng
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xiang Gao
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qingping Gao
- Department of Hematology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yueying Wang
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Chatzopoulou A, Heijmans JPM, Burgerhout E, Oskam N, Spaink HP, Meijer AH, Schaaf MJM. Glucocorticoid-Induced Attenuation of the Inflammatory Response in Zebrafish. Endocrinology 2016; 157:2772-84. [PMID: 27219276 DOI: 10.1210/en.2015-2050] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Glucocorticoids are steroid hormones that are secreted upon stress. Their effects are mediated by the glucocorticoid receptor, which acts as a transcription factor. Because the antiinflammatory activity of glucocorticoids has been well established, they are widely used clinically to treat many inflammatory and immune-related diseases. However, the exact specificity, mechanisms, and level of regulation of different inflammatory pathways have not been fully elucidated. In the present study, a tail fin amputation assay was used in 3-day-old zebrafish larvae to study the immunomodulatory effects of the synthetic glucocorticoid beclomethasone. First, a transcriptome analysis was performed, which showed that upon amputation mainly immune-related genes are regulated. This regulation was inhibited by beclomethasone for 86% of regulated genes. For two immune-related genes, tlr4bb and alox5ap, the amputation-induced increase was not attenuated by beclomethasone. Alox5ap is involved in eicosanoid biosynthesis, but the increase in leukotriene B4 concentration upon amputation was abolished, and lipoxin A4 levels were unaffected by beclomethasone. Furthermore, we studied the migration of neutrophils and macrophages toward the wound site. Our results show that amputation induced migration of both types of leukocytes and that this migration was dependent on de novo protein synthesis. Beclomethasone treatment attenuated the migratory behavior of neutrophils in a glucocorticoid receptor-dependent manner but left the migration of macrophages unaffected. In conclusion, beclomethasone has a dramatic inhibitory effect on the amputation-induced proinflammatory gene regulation, and this is reflected in an inhibition of the neutrophil migration but not the migration of macrophages, which are likely to be involved in inflammation resolution.
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Affiliation(s)
| | | | - Erik Burgerhout
- Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
| | - Nienke Oskam
- Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
| | - Herman P Spaink
- Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
| | | | - Marcel J M Schaaf
- Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands
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30
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Wang Q, Liu S, Hu D, Wang Z, Wang L, Wu T, Wu Z, Mohan C, Peng A. Identification of apoptosis and macrophage migration events in paraquat-induced oxidative stress using a zebrafish model. Life Sci 2016; 157:116-124. [PMID: 27288846 DOI: 10.1016/j.lfs.2016.06.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 05/31/2016] [Accepted: 06/07/2016] [Indexed: 12/30/2022]
Abstract
AIMS Paraquat (PQ) is a pesticide highly toxic to human beings, and a well-known trigger of oxidative stress. Although several animal models of PQ poisoning have been developed, some disadvantages limit their application in vivo. A zebrafish model was used in the present study to better define mechanisms of oxidative stress injury induced by PQ. MAIN METHODS The toxicity of PQ was evaluated in the AB strain of zebrafish, and apoptosis was assessed by acridine orange staining. Macrophage migration was identified using the TG (zlyz:EGFP) transgenic strain, and angiogenesis was observed using the fli1a-EGFP casper strain. Following the validation of gene changes by zebrafish-based in vivo quantitative real-time PCR, network analysis was performed using the Ingenuity Pathway Analysis software. KEY FINDINGS We first established the LC50 of PQ in the zebrafish model, and then found that robust oxidative stress and antioxidant genes were activated after PQ exposure. Moreover, apoptosis and distinct macrophage activation and migration were identified for the first time in PQ-exposed zebrafish. Utilizing this model, both extrinsic and intrinsic pathways involved in PQ-induced apoptosis were elucidated. We further demonstrated that macrophage migration was specifically induced by PQ, and that Rho family members and JNK-MMP13 signaling participated in this process. SIGNIFICANCE Zebrafish is a promising tool for investigating the mechanisms of oxidative stress injury induced by PQ, and for screening effective anti-oxidant drugs.
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Affiliation(s)
- Qiang Wang
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Shuai Liu
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Dayong Hu
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Zhen Wang
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Ling Wang
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Tianfu Wu
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China; Department of Biomedical Engineering, University of Houston, TX, USA
| | - Zhuanbin Wu
- Shanghai Research Center for Model Organisms, Shanghai, PR China
| | - Chandra Mohan
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China; Department of Biomedical Engineering, University of Houston, TX, USA
| | - Ai Peng
- Department of Nephrology & Rheumatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China.
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Paclitaxel-induced epithelial damage and ectopic MMP-13 expression promotes neurotoxicity in zebrafish. Proc Natl Acad Sci U S A 2016; 113:E2189-98. [PMID: 27035978 PMCID: PMC4839466 DOI: 10.1073/pnas.1525096113] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Paclitaxel is a microtubule-stabilizing chemotherapeutic agent that is widely used in cancer treatment and in a number of curative and palliative regimens. Despite its beneficial effects on cancer, paclitaxel also damages healthy tissues, most prominently the peripheral sensory nervous system. The mechanisms leading to paclitaxel-induced peripheral neuropathy remain elusive, and therapies that prevent or alleviate this condition are not available. We established a zebrafish in vivo model to study the underlying mechanisms and to identify pharmacological agents that may be developed into therapeutics. Both adult and larval zebrafish displayed signs of paclitaxel neurotoxicity, including sensory axon degeneration and the loss of touch response in the distal caudal fin. Intriguingly, studies in zebrafish larvae showed that paclitaxel rapidly promotes epithelial damage and decreased mechanical stress resistance of the skin before induction of axon degeneration. Moreover, injured paclitaxel-treated zebrafish skin and scratch-wounded human keratinocytes (HEK001) display reduced healing capacity. Epithelial damage correlated with rapid accumulation of fluorescein-conjugated paclitaxel in epidermal basal keratinocytes, but not axons, and up-regulation of matrix-metalloproteinase 13 (MMP-13, collagenase 3) in the skin. Pharmacological inhibition of MMP-13, in contrast, largely rescued paclitaxel-induced epithelial damage and neurotoxicity, whereas MMP-13 overexpression in zebrafish embryos rendered the skin vulnerable to injury under mechanical stress conditions. Thus, our studies provide evidence that the epidermis plays a critical role in this condition, and we provide a previously unidentified candidate for therapeutic interventions.
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32
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Ohnmacht J, Yang Y, Maurer GW, Barreiro-Iglesias A, Tsarouchas TM, Wehner D, Sieger D, Becker CG, Becker T. Spinal motor neurons are regenerated after mechanical lesion and genetic ablation in larval zebrafish. Development 2016; 143:1464-74. [PMID: 26965370 PMCID: PMC4986163 DOI: 10.1242/dev.129155] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 02/25/2016] [Indexed: 01/14/2023]
Abstract
In adult zebrafish, relatively quiescent progenitor cells show lesion-induced generation of motor neurons. Developmental motor neuron generation from the spinal motor neuron progenitor domain (pMN) sharply declines at 48 hours post-fertilisation (hpf). After that, mostly oligodendrocytes are generated from the same domain. We demonstrate here that within 48 h of a spinal lesion or specific genetic ablation of motor neurons at 72 hpf, the pMN domain reverts to motor neuron generation at the expense of oligodendrogenesis. By contrast, generation of dorsal Pax2-positive interneurons was not altered. Larval motor neuron regeneration can be boosted by dopaminergic drugs, similar to adult regeneration. We use larval lesions to show that pharmacological suppression of the cellular response of the innate immune system inhibits motor neuron regeneration. Hence, we have established a rapid larval regeneration paradigm. Either mechanical lesions or motor neuron ablation is sufficient to reveal a high degree of developmental flexibility of pMN progenitor cells. In addition, we show an important influence of the immune system on motor neuron regeneration from these progenitor cells.
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Affiliation(s)
- Jochen Ohnmacht
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Yujie Yang
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Gianna W Maurer
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Antón Barreiro-Iglesias
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Themistoklis M Tsarouchas
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Daniel Wehner
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Dirk Sieger
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Catherina G Becker
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Thomas Becker
- Centre for Neuroregeneration, The University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, UK
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Huang MY, Lin J, Huang ZJ, Xu HG, Hong J, Sun PH, Guo JL, Chen WM. Design, synthesis and anti-inflammatory effects of novel 9-O-substituted-berberine derivatives. MEDCHEMCOMM 2016. [DOI: 10.1039/c5md00577a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A series of novel 9-O-substituted-berberine derivatives were synthesized and their anti-inflammatory activities were evaluated. Among them, compounds 3i and 5e exhibited excellent anti-inflammatory potential.
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Affiliation(s)
- Mei-Yan Huang
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- PR China
| | - Jing Lin
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- PR China
| | - Zhi-Jian Huang
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- PR China
| | - Hong-Gui Xu
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- PR China
| | - Juan Hong
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- PR China
| | - Ping-Hua Sun
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- PR China
| | - Jia-Liang Guo
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- PR China
| | - Wei-Min Chen
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- PR China
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Nakazato R, Takarada T, Ikeno S, Nakamura S, Kutsukake T, Hinoi E, Yoneda Y. Upregulation of Runt-Related Transcription Factor-2 Through CCAAT Enhancer Binding Protein-β Signaling Pathway in Microglial BV-2 Cells Exposed to ATP. J Cell Physiol 2015; 230:2510-21. [PMID: 25802132 DOI: 10.1002/jcp.24988] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 03/10/2015] [Indexed: 01/01/2023]
Abstract
We have shown constitutive expression of the master regulator of osteoblastogenesis, runt-related transcription factor-2 (Runx2), by microglia cells outside bone. Here, we attempted to evaluate the pathological significance of Runx2 in microglial BV-2 cells exposed to ATP at a high concentration. Marked upregulation of Runx2 transcript and protein expression was seen in cells exposed to 1 mM ATP for a period longer than 30 min without inducing cytotoxicity. The Runx2 upregulation by ATP was prevented by extracellular and intracellular Ca(2+) chelators, while thapsigargin upregulated Runx2 expression alone without affecting the upregulation by ATP. A calmodulin antagonist prevented the upregulation by ATP, with calcineurin inhibitors being ineffective. Although ATP markedly increased nuclear levels of nuclear factor of activated T cell-2 (NFAT2), Runx2 promoter activity was not simulated by the introduction of either NFAT1 or NFAT2, but facilitated by that of CCAAT enhancer binding protein-α (C/EBPα), C/EBPβ and nuclear factor (erythroid-derived 2)-like-2 (Nrf2). Exposure to ATP up-regulated C/EBPβ and Nrf2, but not C/EBPα, expression, in addition to increasing nuclear levels of respective corresponding proteins. Runx2 upregulation by ATP was deteriorated by knockdown of C/EBPβ but not by that of Nrf2, however, while exposure to ATP up-regulated matrix metalloproteinase-13 (Mmp13) expression in a Runx2-dependent manner. Overexpression of Runx2 up-regulated Mmp13 expression with promoted incorporation of fluorescent beads into BV-2 cells without ATP. These results suggest that extracellular ATP up-regulates Runx2 expression through activation of the C/EBPβ signaling in a calmodulin-dependent manner to play a pivotal role in phagocytosis in microglial BV-2 cells.
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Affiliation(s)
- Ryota Nakazato
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Takeshi Takarada
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Shinsuke Ikeno
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Saki Nakamura
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Takaya Kutsukake
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Eiichi Hinoi
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Yukio Yoneda
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
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Mutation of kri1l causes definitive hematopoiesis failure via PERK-dependent excessive autophagy induction. Cell Res 2015; 25:946-62. [PMID: 26138676 PMCID: PMC4528055 DOI: 10.1038/cr.2015.81] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 05/03/2015] [Accepted: 05/28/2015] [Indexed: 02/06/2023] Open
Abstract
Dysregulation of ribosome biogenesis causes human diseases, such as Diamond-Blackfan anemia, del (5q-) syndrome and bone marrow failure. However, the mechanisms of blood disorders in these diseases remain elusive. Through genetic mapping, molecular cloning and mechanism characterization of the zebrafish mutant cas002, we reveal a novel connection between ribosomal dysfunction and excessive autophagy in the regulation of hematopoietic stem/progenitor cells (HSPCs). cas002 carries a recessive lethal mutation in kri1l gene that encodes an essential component of rRNA small subunit processome. We show that Kri1l is required for normal ribosome biogenesis, expansion of definitive HSPCs and subsequent lineage differentiation. Through live imaging and biochemical studies, we find that loss of Kri1l causes the accumulation of misfolded proteins and excessive PERK activation-dependent autophagy in HSPCs. Blocking autophagy but not inhibiting apoptosis by Bcl2 overexpression can fully rescue hematopoietic defects, but not the lethality of kri1lcas002 embryos. Treatment with autophagy inhibitors (3-MA and Baf A1) or PERK inhibitor (GSK2656157), or knockdown of beclin1 or perk can markedly restore HSPC proliferation and definitive hematopoietic cell differentiation. These results may provide leads for effective therapeutics that benefit patients with anemia or bone marrow failure caused by ribosome disorders.
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Chatzopoulou A, Roy U, Meijer AH, Alia A, Spaink HP, Schaaf MJM. Transcriptional and metabolic effects of glucocorticoid receptor α and β signaling in zebrafish. Endocrinology 2015; 156:1757-69. [PMID: 25756310 DOI: 10.1210/en.2014-1941] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In humans and zebrafish, 2 glucocorticoid (GC) receptor (GR) splice variants exist: the canonical GR α-isoform (GRα), and the GRβ. In the present study, we have used the zebrafish model system in order to reveal genes affected by each of these 2 receptor isoforms. By injecting zebrafish embryos with different splice-blocking morpholinos, we could knock down both GR isoforms or could target the alternative splicing of the GR pre-mRNA in favor of the GRβ. In addition, specific GRβ overexpression was achieved by injecting mRNA. Embryos were treated with the synthetic GC dexamethasone, and transcriptome analysis was performed. Two distinct gene clusters were found that were regulated by GRα: one that was regulated by GRα under basal conditions (presence of endogenous cortisol only), and one that was regulated upon increased activation of GRα (using a pharmacological dose of dexamathasone). GRβ may act as a dominant-negative inhibitor of GRα when GRβ is overexpressed and the GRα expression level is knocked down simultaneously. However, without GRα knockdown, no evidence for this activity was found. In addition, the data indicate regulation of gene transcription through other mechanisms of action by GRβ. We also investigated the concentrations of several metabolites using nuclear magnetic resonance spectroscopy. We found that dexamethasone treatment and knockdown of GRα together with overexpression of GRβ had opposite effects on glucose, amino acid, and fatty acid levels. Thus, we have shed new light on the molecular mechanisms of GC-induced effects on metabolism, which are known to increase the risk of obesity, hyperglycemia, and diabetes.
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Affiliation(s)
- Antonia Chatzopoulou
- Department of Animal Sciences and Health (A.C., A.H.M., H.P.S., M.J.M.S.), Institute of Biology, Leiden University, 2333CC Leiden, The Netherlands; Department of Biophysical Organic Chemistry/Solid State NMR (U.R., A.A.), Leiden Institute of Chemistry, Leiden University, 2333CC Leiden, The Netherlands; and Institute of Medical Physics and Biophysics (A.A.), University of Leipzig, D-04107 Leipzig, Germany
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37
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Ye BX, Deng X, Shao LD, Lu Y, Xiao R, Liu YJ, Jin Y, Xie YY, Zhao Y, Luo LF, Ma S, Gao M, Zhang LR, He J, Zhang WN, Chen Y, Xia CF, Deng M, Liu TX, Zhao QS, Chen SJ, Chen Z. Vibsanin B preferentially targets HSP90β, inhibits interstitial leukocyte migration, and ameliorates experimental autoimmune encephalomyelitis. THE JOURNAL OF IMMUNOLOGY 2015; 194:4489-97. [PMID: 25810397 DOI: 10.4049/jimmunol.1402798] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 02/24/2015] [Indexed: 01/16/2023]
Abstract
Interstitial leukocyte migration plays a critical role in inflammation and offers a therapeutic target for treating inflammation-associated diseases such as multiple sclerosis. Identifying small molecules to inhibit undesired leukocyte migration provides promise for the treatment of these disorders. In this study, we identified vibsanin B, a novel macrocyclic diterpenoid isolated from Viburnum odoratissimum Ker-Gawl, that inhibited zebrafish interstitial leukocyte migration using a transgenic zebrafish line (TG:zlyz-enhanced GFP). We found that vibsanin B preferentially binds to heat shock protein (HSP)90β. At the molecular level, inactivation of HSP90 can mimic vibsanin B's effect of inhibiting interstitial leukocyte migration. Furthermore, we demonstrated that vibsanin B ameliorates experimental autoimmune encephalomyelitis in mice with pathological manifestation of decreased leukocyte infiltration into their CNS. In summary, vibsanin B is a novel lead compound that preferentially targets HSP90β and inhibits interstitial leukocyte migration, offering a promising drug lead for treating inflammation-associated diseases.
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Affiliation(s)
- Bai-Xin Ye
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xu Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Li-Dong Shao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ying Lu
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Run Xiao
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yi-Jie Liu
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yi Jin
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yin-Yin Xie
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yan Zhao
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Liu-Fei Luo
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Shun Ma
- State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen 361102, China
| | - Ming Gao
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; and
| | - Lian-Ru Zhang
- State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen 361102, China
| | - Juan He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Wei-Na Zhang
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yi Chen
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Cheng-Feng Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Min Deng
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ting-Xi Liu
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Sai-Juan Chen
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;
| | - Zhu Chen
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;
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Ma X, Liu Y, Wang Q, Chen Y, Liu M, Li X, Xiang R, Wei Y, Duan Y, Han J. Tamoxifen induces the development of hernia in mice by activating MMP-2 and MMP-13 expression. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1038-48. [PMID: 25703139 DOI: 10.1016/j.bbadis.2015.02.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 02/01/2015] [Accepted: 02/12/2015] [Indexed: 02/05/2023]
Abstract
Hernia is a disease with defects in collagen synthesis/metabolism. However, the underlying mechanisms for hernia formation have not been fully defined. Tamoxifen is a selective estrogen receptor modulator and used for patients with breast cancer. Tamoxifen also has pleiotropic and side effects. Herein, we report that tamoxifen treatment resulted in an appearance of a large bulge in the low abdomen between the hind legs in male but not in female mice. The autopsy demonstrated that the low abdominal wall was broken and a large amount of intestine herniated out of the abdominal cavity. Histological analysis indicated that tamoxifen caused structural abnormalities in the low abdominal wall which were associated with decreased type II collagen content. Furthermore, we determined increased matrix metalloproteinase-2 (MMP-2) and MMP-13 expression in the tissue. In vitro, tamoxifen induced MMP-2 and MMP-13 expression in fibroblasts. The promoter activity analysis and ChIP assay demonstrate that induction of MMP-13 expression was associated with activation of JNK-AP-1 and ERK1/2 signaling pathways while induction of MMP-2 expression was related to activation of the ERK1/2 signaling pathway. Taken together, our study establishes a novel murine hernia model, defines a severe side effect of tamoxifen, and suggests a caution to male patients receiving tamoxifen treatment.
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Affiliation(s)
- Xingzhe Ma
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China; College of Life Sciences, Nankai University, Tianjin, China
| | - Ying Liu
- College of Life Sciences, Nankai University, Tianjin, China
| | - Qixue Wang
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China; College of Life Sciences, Nankai University, Tianjin, China
| | - Yuanli Chen
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China; College of Medicine, Nankai University, Tianjin, China
| | - Mengyang Liu
- College of Life Sciences, Nankai University, Tianjin, China
| | - Xiaoju Li
- College of Life Sciences, Nankai University, Tianjin, China
| | - Rong Xiang
- College of Medicine, Nankai University, Tianjin, China; Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yuquan Wei
- Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yajun Duan
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China; College of Life Sciences, Nankai University, Tianjin, China.
| | - Jihong Han
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China; College of Life Sciences, Nankai University, Tianjin, China; Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
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de Oliveira S, Boudinot P, Calado Â, Mulero V. Duox1-derived H2O2 modulates Cxcl8 expression and neutrophil recruitment via JNK/c-JUN/AP-1 signaling and chromatin modifications. THE JOURNAL OF IMMUNOLOGY 2015; 194:1523-33. [PMID: 25582859 DOI: 10.4049/jimmunol.1402386] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
DUOX1-derived hydrogen peroxide (H2O2) and CXCL8 are two key neutrophil chemoattractants. H2O2 is critical at the early phase, whereas CXCL8 plays a key role in the late phases of recruitment, but the crosstalks between the two phases in vivo remain unknown. In this study using zebrafish, we report that H2O2 also contributes to neutrophil recruitment to injuries at the late phase as it induces Cxcl8 expression in vivo through a JNK/c-JUN/AP-1 signaling pathway. However, Erk and NF-κB signaling were not involved in this crosstalk. Strikingly, H2O2 also promotes cxcl8 expression through modulation of histone 3 lysine 4 trimethylation, histone 3 lysine 9 acetylation, and histone 3 lysine 9 trimethylation levels at its promoter. These results explain how early H2O2 signal regulates neutrophil recruitment at all phases, directly via Lyn oxidation or indirectly by modulating cxcl8 gene expression, via the activation of redox-sensitive signaling pathways, and further point out H2O2/DUOX1 as a key drug target for anti-inflammatory therapies.
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Affiliation(s)
- Sofia de Oliveira
- Carlota Saldanha Laboratory, Molecular Medicine Institute, 1649-028 Lisbon, Portugal; Biochemistry Institute, Faculty of Medicine, University of Lisbon, 1649-028 Lisbon, Portugal; Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, 30100 Murcia, Spain; Biomedical Research Institute of Murcia, IMIB-Arrixaca, 30120 Murcia, Spain; and
| | - Pierre Boudinot
- Virology and Molecular Immunology, National Institute of Agronomic Research, 78352 Jouy-en-Josas, France
| | - Ângelo Calado
- Carlota Saldanha Laboratory, Molecular Medicine Institute, 1649-028 Lisbon, Portugal; Biochemistry Institute, Faculty of Medicine, University of Lisbon, 1649-028 Lisbon, Portugal;
| | - Victoriano Mulero
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, 30100 Murcia, Spain; Biomedical Research Institute of Murcia, IMIB-Arrixaca, 30120 Murcia, Spain; and
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40
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Keightley MC, Wang CH, Pazhakh V, Lieschke GJ. Delineating the roles of neutrophils and macrophages in zebrafish regeneration models. Int J Biochem Cell Biol 2014; 56:92-106. [DOI: 10.1016/j.biocel.2014.07.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/18/2014] [Accepted: 07/14/2014] [Indexed: 12/24/2022]
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Pimtong W, Datta M, Ulrich AM, Rhodes J. Drl.3 governs primitive hematopoiesis in zebrafish. Sci Rep 2014; 4:5791. [PMID: 25051985 PMCID: PMC4107348 DOI: 10.1038/srep05791] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 06/19/2014] [Indexed: 12/16/2022] Open
Abstract
The molecular program controlling hematopoietic differentiation is not fully understood. Here, we describe a family of zebrafish genes that includes a novel hematopoietic regulator, draculin-like 3 (drl.3). We found that drl.3 is expressed in mesoderm-derived hematopoietic cells and is retained during erythroid maturation. Moreover, drl.3 expression correlated with erythroid development in gata1a- and spi1b-depleted embryos. Loss-of-function analysis indicated that drl.3 plays an essential role in primitive erythropoiesis and, to a lesser extent, myelopoiesis that is independent of effects on vasculature, emergence of primitive and definitive progenitor cells and cell viability. While drl.3 depletion reduced gata1a expression and inhibited erythroid development, enforced expression of gata1a was not sufficient to rescue erythropoiesis, indicating that the regulation of hematopoiesis by drl.3 extends beyond control of gata1a expression. Knockdown of drl.3 increased the proportion of less differentiated, primitive hematopoietic cells without affecting proliferation, establishing drl.3 as an important regulator of primitive hematopoietic cell differentiation.
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Affiliation(s)
- Wittaya Pimtong
- 1] Immune Cell Development and Host Defense Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, 19111, USA [2]
| | - Madhusmita Datta
- 1] Immune Cell Development and Host Defense Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, 19111, USA [2]
| | - Allison M Ulrich
- Immune Cell Development and Host Defense Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, 19111, USA
| | - Jennifer Rhodes
- Immune Cell Development and Host Defense Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, PA, 19111, USA
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42
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Hall CJ, Wicker SM, Chien AT, Tromp A, Lawrence LM, Sun X, Krissansen GW, Crosier KE, Crosier PS. Repositioning drugs for inflammatory disease - fishing for new anti-inflammatory agents. Dis Model Mech 2014; 7:1069-81. [PMID: 25038060 PMCID: PMC4142727 DOI: 10.1242/dmm.016873] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Inflammation is an important and appropriate host response to infection or injury. However, dysregulation of this response, with resulting persistent or inappropriate inflammation, underlies a broad range of pathological processes, from inflammatory dermatoses to type 2 diabetes and cancer. As such, identifying new drugs to suppress inflammation is an area of intense interest. Despite notable successes, there still exists an unmet need for new effective therapeutic approaches to treat inflammation. Traditional drug discovery, including structure-based drug design, have largely fallen short of satisfying this unmet need. With faster development times and reduced safety and pharmacokinetic uncertainty, drug repositioning – the process of finding new uses for existing drugs – is emerging as an alternative strategy to traditional drug design that promises an improved risk-reward trade-off. Using a zebrafish in vivo neutrophil migration assay, we undertook a drug repositioning screen to identify unknown anti-inflammatory activities for known drugs. By interrogating a library of 1280 approved drugs for their ability to suppress the recruitment of neutrophils to tail fin injury, we identified a number of drugs with significant anti-inflammatory activity that have not previously been characterized as general anti-inflammatories. Importantly, we reveal that the ten most potent repositioned drugs from our zebrafish screen displayed conserved anti-inflammatory activity in a mouse model of skin inflammation (atopic dermatitis). This study provides compelling evidence that exploiting the zebrafish as an in vivo drug repositioning platform holds promise as a strategy to reveal new anti-inflammatory activities for existing drugs.
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Affiliation(s)
- Christopher J Hall
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Sophie M Wicker
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - An-Tzu Chien
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Alisha Tromp
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Lisa M Lawrence
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Xueying Sun
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Geoffrey W Krissansen
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Kathryn E Crosier
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Philip S Crosier
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
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miR-142-3p acts as an essential modulator of neutrophil development in zebrafish. Blood 2014; 124:1320-30. [PMID: 24990885 DOI: 10.1182/blood-2013-12-545012] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Neutrophils play critical roles in vertebrate innate immune responses. As an emerging regulator in normal myelopoiesis, the precise roles of microRNA in the development of neutrophils have yet to be clarified. Using zinc-finger nucleases, we have successfully generated heritable mutations in miR-142a and miR-142b and showed that hematopoietic-specific miR-142-3p is completely deleted in miR-142 double mutant zebrafish. The lack of miR-142-3p resulted in aberrant reduction and hypermaturation of neutrophils in definitive myelopoiesis, as well as impaired inflammatory migration of neutrophils in the fetal stage. Furthermore, the adult myelopoiesis in the miR-142-3p-deficient zebrafish was also affected, producing irregular hypermature neutrophils with increased cell size and a decreased nucleocytoplasmic ratio. Additionally, miR-142-3p-deficient zebrafish are expected to develop a chronic failure of myelopoiesis with age. Transcriptome analysis showed an aberrant activation of the interferon γ (IFN-γ) signaling pathway in myelomonocytes after miR-142-3p deletion. We found that the reduced number and hypermaturation of neutrophils caused by loss of miR-142-3p was mainly mediated by the abnormally activated IFN-γ signaling, especially the upregulation of stat1a and irf1b. Taken together, we uncovered a novel role of miR-142-3p in maintaining normal neutrophil development and maturation.
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44
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Epidermal cells help coordinate leukocyte migration during inflammation through fatty acid-fuelled matrix metalloproteinase production. Nat Commun 2014; 5:3880. [PMID: 24852213 DOI: 10.1038/ncomms4880] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 04/11/2014] [Indexed: 02/07/2023] Open
Abstract
In addition to satisfying the metabolic demands of cells, mitochondrial metabolism helps regulate immune cell function. To date, such cell-intrinsic metabolic-immunologic cross-talk has only been described operating in cells of the immune system. Here we show that epidermal cells utilize fatty acid β-oxidation to fuel their contribution to the immune response during cutaneous inflammation. By live imaging metabolic and immunological processes within intact zebrafish embryos during cutaneous inflammation, we uncover a mechanism where elevated β-oxidation-fuelled mitochondria-derived reactive oxygen species within epidermal cells helps guide matrix metalloproteinase-driven leukocyte recruitment. This mechanism requires the activity of a zebrafish homologue of the mammalian mitochondrial enzyme, Immunoresponsive gene 1. This study describes the first example of metabolic reprogramming operating within a non-immune cell type to help control its contribution to the immune response. Targeting of this metabolic-immunologic interface within keratinocytes may prove useful in treating inflammatory dermatoses.
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45
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Zhu Z, Chen J, Xiong JW, Peng J. Haploinsufficiency of Def activates p53-dependent TGFβ signalling and causes scar formation after partial hepatectomy. PLoS One 2014; 9:e96576. [PMID: 24801718 PMCID: PMC4011785 DOI: 10.1371/journal.pone.0096576] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Accepted: 04/09/2014] [Indexed: 01/07/2023] Open
Abstract
The metazoan liver exhibits a remarkable capacity to regenerate lost liver mass without leaving a scar following partial hepatectomy (PH). Whilst previous studies have identified components of several different signaling pathways that are essential for activation of hepatocyte proliferation during liver regeneration, the mechanisms that enable such regeneration to occur without accompanying scar formation remain poorly understood. Here we use the adult zebrafish liver, which can regenerate within two weeks following PH, as a new genetic model to address this important question. We focus on the role of Digestive-organ-expansion-factor (Def), a nucleolar protein which has recently been shown to complex with calpain3 (Capn3) to mediate p53 degradation specifically in the nucleolus, in liver regeneration. Firstly, we show that Def expression is up-regulated in the wild-type liver following amputation, and that the defhi429/+ heteroozygous mutant (def+/−) suffers from haploinsufficiency of Def in the liver. We then show that the expression of pro-inflammatory cytokines is up-regulated in the def+/− liver, which leads to distortion of the migration and the clearance of leukocytes after PH. Transforming growth factor β (TGFβ) signalling is thus activated in the wound epidermis in def+/− due to a prolonged inflammatory response, which leads to fibrosis at the amputation site. Fibrotic scar formation in def+/− is blocked by the over-expression of Def, by the loss-of-function of p53, and by treatment with anti-inflammation drug dexamethasone or TGFβ-signalling inhibitor SB431542. We finally show that the Def- p53 pathway suppresses fibrotic scar formation, at least in part, through the regulation of the expression of the pro-inflammatory factor, high-mobility group box 1. We conclude that the novel Def- p53 nucleolar pathway functions specifically to prevent a scar formation at the amputation site in a normal amputated liver.
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Affiliation(s)
- Zhihui Zhu
- Key Laboratory for Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jun Chen
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jing-Wei Xiong
- Institute of Molecular Medicine, Peking University, Beijing, China
| | - Jinrong Peng
- Key Laboratory for Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou, China
- * E-mail:
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46
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Cheng X, Chen X, Jin X, He J, Yin Z. Generation and characterization of gsuα:EGFP transgenic zebrafish for evaluating endocrine-disrupting effects. Toxicol Appl Pharmacol 2014; 278:78-84. [PMID: 24747804 DOI: 10.1016/j.taap.2014.04.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 04/07/2014] [Accepted: 04/08/2014] [Indexed: 01/12/2023]
Abstract
The glycoprotein subunit α (gsuα) gene encodes the shared α subunit of the three pituitary heterodimeric glycoprotein hormones: follicle-stimulating hormone β (Fshβ), luteinizing hormone β (Lhβ) and thyroid stimulating hormone β (Tshβ). In our current study, we identified and characterized the promoter region of zebrafish gsuα and generated a stable gsuα:EGFP transgenic line, which recapitulated the endogenous gsuα expression in the early developing pituitary gland. A relatively conserved regulatory element set is presented in the promoter regions of zebrafish and three other known mammalian gsuα promoters. Our results also demonstrated that the expression patterns of the gsuα:EGFP transgene were all identical to those expression patterns of the endogenous gsuα expression in the pituitary tissue when our transgenic fish were treated with various endocrine chemicals, including forskolin (FSK), SP600125, trichostatin A (TSA), KClO4, dexamethasone (Dex), β-estradiol and progesterone. Thus, this gsuα:EGFP transgenic fish reporter line provides another valuable tool for investigating the lineage development of gsuα-expressing gonadotrophins and the coordinated regulation of various glycoprotein hormone subunit genes. These reporter fish can serve as a novel platform to perform screenings of endocrine-disrupting chemicals (EDCs) in vivo as well.
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Affiliation(s)
- Xiaoxia Cheng
- Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xiaowen Chen
- Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Xia Jin
- Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Jiangyan He
- Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Zhan Yin
- Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China; Ningbo Laboratory, State Key Laboratory of Freshwater Ecology and Biotechnology, China.
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47
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Pten regulates homeostasis and inflammation-induced migration of myelocytes in zebrafish. J Hematol Oncol 2014; 7:17. [PMID: 24598081 PMCID: PMC4015859 DOI: 10.1186/1756-8722-7-17] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Accepted: 02/27/2014] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Loss of the tumor suppressor phosphatase and tensin homolog (PTEN) is frequently observed in hematopoietic malignancies. Although PTEN has been implicated in maintaining the quiescence of hematopoietic stem cells (HSCs), its role in hematopoiesis during ontogeny remains largely unexplored. METHODS The expression of hematopoietic marker genes was analyzed via whole mount in situ hybridization assay in ptena and ptenb double mutant zebrafish. The embryonic myelopoiesis was characterized by living imaging and whole mount in situ immunofluorescence with confocal microscopy, as well as cell-specific chemical staining for neutrophils and macrophages. Analyses of the involved signaling pathway were carried out by inhibitor treatment and mRNA injection. RESULTS Pten-deficient zebrafish embryos exhibited a strikingly increased number of myeloid cells, which were further characterized as being immune deficient. In accordance with this finding, the inhibition of phosphoinositide 3-kinase (PI3K) or the mechanistic target of rapamycin (mTOR) corrected the expansive myelopoiesis in the pten-deficient embryos. Further mechanistic studies revealed that the expression of cebpa, a critical transcription factor in myeloid precursor cells, was downregulated in the pten-deficient myeloid cells, whereas the injection of cebpa mRNA markedly ameliorated the dysmyelopoiesis induced by the loss of pten. CONCLUSIONS Our data provide in vivo evidence that definitive myelopoiesis in zebrafish is critically regulated by pten via the elevation of cebpa expression.
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48
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Lam PY, Fischer RS, Shin WD, Waterman CM, Huttenlocher A. Spinning disk confocal imaging of neutrophil migration in zebrafish. Methods Mol Biol 2014; 1124:219-33. [PMID: 24504955 DOI: 10.1007/978-1-62703-845-4_14] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Live-cell imaging techniques have been substantially improved due to advances in confocal microscopy instrumentation coupled with ultrasensitive detectors. The spinning disk confocal system is capable of generating images of fluorescent live samples with broad dynamic range and high temporal and spatial resolution. The ability to acquire fluorescent images of living cells in vivo on a millisecond timescale allows the dissection of biological processes that have not previously been visualized in a physiologically relevant context. In vivo imaging of rapidly moving cells such as neutrophils can be technically challenging. In this chapter, we describe the practical aspects of imaging neutrophils in zebrafish embryos using spinning disk confocal microscopy. Similar setups can also be applied to image other motile cell types and signaling processes in translucent animals or tissues.
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Affiliation(s)
- Pui-Ying Lam
- Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI, USA
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49
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Lam PY, Huttenlocher A. Interstitial leukocyte migration in vivo. Curr Opin Cell Biol 2013; 25:650-8. [PMID: 23797028 DOI: 10.1016/j.ceb.2013.05.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 05/12/2013] [Accepted: 05/31/2013] [Indexed: 01/06/2023]
Abstract
Rapid leukocyte motility is essential for immunity and host defense. There has been progress in understanding the molecular signals that regulate leukocyte motility both in vitro and in vivo. However, a gap remains in understanding how complex signals are prioritized to result in directed migration, which is critical for both adaptive and innate immune function. Here we focus on interstitial migration and how external cues are translated into intracellular signaling pathways that regulate leukocyte polarity, directional sensing and motility in three-dimensional spaces.
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Affiliation(s)
- Pui-ying Lam
- Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI 53706, USA
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50
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FALENTA K, RODAWAY A, JONES G, WELLS C. Imaging haematopoietic cells recruitment to an acute wound in vivo
identifies a role for c-Met signalling. J Microsc 2013; 250:200-9. [DOI: 10.1111/jmi.12035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 03/03/2013] [Indexed: 12/19/2022]
Affiliation(s)
- K. FALENTA
- Division of Cardiovascular Medicine; King's College London; London U.K
- Division of Cancer Studies; King's College London; London U.K
| | - A. RODAWAY
- Division of Cardiovascular Medicine; King's College London; London U.K
| | - G.E. JONES
- Randall Division of Cell & Molecular Biophysics; King's College London; London U.K
| | - C.M. WELLS
- Division of Cancer Studies; King's College London; London U.K
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