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Yoo H, La H, Park C, Yoo S, Lee H, Song H, Do JT, Choi Y, Hong K. Common and distinct functions of mouse Dot1l in the regulation of endothelial transcriptome. Front Cell Dev Biol 2023; 11:1176115. [PMID: 37397258 PMCID: PMC10311421 DOI: 10.3389/fcell.2023.1176115] [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: 02/28/2023] [Accepted: 06/06/2023] [Indexed: 07/04/2023] Open
Abstract
Epigenetic mechanisms are mandatory for endothelial called lymphangioblasts during cardiovascular development. Dot1l-mediated gene transcription in mice is essential for the development and function of lymphatic ECs (LECs). The role of Dot1l in the development and function of blood ECs blood endothelial cells is unclear. RNA-seq datasets from Dot1l-depleted or -overexpressing BECs and LECs were used to comprehensively analyze regulatory networks of gene transcription and pathways. Dot1l depletion in BECs changed the expression of genes involved in cell-to-cell adhesion and immunity-related biological processes. Dot1l overexpression modified the expression of genes involved in different types of cell-to-cell adhesion and angiogenesis-related biological processes. Genes involved in specific tissue development-related biological pathways were altered in Dot1l-depleted BECs and LECs. Dot1l overexpression altered ion transportation-related genes in BECs and immune response regulation-related genes in LECs. Importantly, Dot1l overexpression in BECs led to the expression of genes related to the angiogenesis and increased expression of MAPK signaling pathways related was found in both Dot1l-overexpressing BECs and LECs. Therefore, our integrated analyses of transcriptomics in Dot1l-depleted and Dot1l-overexpressed ECs demonstrate the unique transcriptomic program of ECs and the differential functions of Dot1l in the regulation of gene transcription in BECs and LECs.
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Laakmann K, Eckersberg JM, Hapke M, Wiegand M, Bierwagen J, Beinborn I, Preußer C, Pogge von Strandmann E, Heimerl T, Schmeck B, Jung AL. Bacterial extracellular vesicles repress the vascular protective factor RNase1 in human lung endothelial cells. Cell Commun Signal 2023; 21:111. [PMID: 37189117 DOI: 10.1186/s12964-023-01131-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND Sepsis is one of the leading causes of death worldwide and characterized by blood stream infections associated with a dysregulated host response and endothelial cell (EC) dysfunction. Ribonuclease 1 (RNase1) acts as a protective factor of vascular homeostasis and is known to be repressed by massive and persistent inflammation, associated to the development of vascular pathologies. Bacterial extracellular vesicles (bEVs) are released upon infection and may interact with ECs to mediate EC barrier dysfunction. Here, we investigated the impact of bEVs of sepsis-related pathogens on human EC RNase1 regulation. METHODS bEVs from sepsis-associated bacteria were isolated via ultrafiltration and size exclusion chromatography and used for stimulation of human lung microvascular ECs combined with and without signaling pathway inhibitor treatments. RESULTS bEVs from Escherichia coli, Klebsiella pneumoniae and Salmonella enterica serovar Typhimurium significantly reduced RNase1 mRNA and protein expression and activated ECs, while TLR2-inducing bEVs from Streptococcus pneumoniae did not. These effects were mediated via LPS-dependent TLR4 signaling cascades as they could be blocked by Polymyxin B. Additionally, LPS-free ClearColi™ had no impact on RNase1. Further characterization of TLR4 downstream pathways involving NF-кB and p38, as well as JAK1/STAT1 signaling, revealed that RNase1 mRNA regulation is mediated via a p38-dependent mechanism. CONCLUSION Blood stream bEVs from gram-negative, sepsis-associated bacteria reduce the vascular protective factor RNase1, opening new avenues for therapeutical intervention of EC dysfunction via promotion of RNase1 integrity. Video Abstract.
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Affiliation(s)
- Katrin Laakmann
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Jorina Mona Eckersberg
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Moritz Hapke
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Marie Wiegand
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Jeff Bierwagen
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Isabell Beinborn
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Christian Preußer
- Institute for Tumor Immunology and Core Facility - Extracellular Vesicles, Philipps-University Marburg, Marburg, Germany
| | - Elke Pogge von Strandmann
- Institute for Tumor Immunology and Core Facility - Extracellular Vesicles, Philipps-University Marburg, Marburg, Germany
| | - Thomas Heimerl
- Center for Synthetic Microbiology (SYNMIKRO), Philipps-University Marburg, Marburg, Germany
| | - Bernd Schmeck
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany
- Center for Synthetic Microbiology (SYNMIKRO), Philipps-University Marburg, Marburg, Germany
- Core Facility Flow Cytometry - Bacterial Vesicles, Philipps-University Marburg, Marburg, Germany
- Department of Pulmonary and Critical Care Medicine, Philipps-University Marburg, Marburg, Germany
- Member of the German Center for Infectious Disease Research (DZIF), Marburg, Germany
| | - Anna Lena Jung
- Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps-University Marburg, German Center for Lung Research (DZL), Marburg, Germany.
- Core Facility Flow Cytometry - Bacterial Vesicles, Philipps-University Marburg, Marburg, Germany.
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Xu J, Shi J, Cai X, Huang S, Li G, Xu Y. [ Fuxinfang improves hypoxia-induced injury of human aortic endothelial cells by regulating c-Fos-NR4A1-p38 pathway]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:200-209. [PMID: 33624592 DOI: 10.12122/j.issn.1673-4254.2021.02.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the molecular mechanism of Fuxinfang for improving injury of human aortic endothelial progenitor cells (HAECs). OBJECTIVE Serum samples were collected from male SD rats treated with Fuxinfang (n=8) or saline (n= 5). HAECs cultured in normoxia or hypoxic condition (2% O2) were treated with serum from normal rats or with diluted serum (1% and 10%) from rats treated with Fuxinfang. The differentially expressed genes (DEGs) between Fuxinfang-treated and control cells were detected using high-throughput sequencing to screen the target DEGs that participated in arterial endothelial cell injury and underwent changes in response to both hypoxia and Fuxinfang treatment. AmiGo and String databases were used to infer the interactions among the target genes, and the expressions of the genes were analyzed in HAECs with different treatments using enzyme-linked immunosorbent assay (ELISA) and Western blotting. OBJECTIVE HAECs cultured in hypoxia did not show obvious changes in cell morphology or expressions of hypoxia-related factors in response to treatment with 1% or 10% serum from Fuxinfang-treated rats. The results of high-throughput sequencing showed a total of 7134 DEGs (4205 up-regulated and 2929 down-regulated genes) in HAECs in hypoxia model group and 762 DEGs (305 upregulated and 457 down-regulated genes) in Fuxinfang-treated HAECs. Analysis of AmiGo and String databases and the constructed protein-protein interaction network identified c-Fos, NR4A1, and p38MAPK as the target genes. The results of ELISA and Western blotting showed that the expressions of c-Fos, NR4A1, p38MAPK and pp38MAPK increased significantly in cells with hypoxic exposure (P < 0.05); treatment with the serum containing Fuxinfang significantly reduced the expression levels of c-Fos, NR4A1 and p-p38MAPK in hypoxic HAECs in a concentration-dependent manner (P < 0.05). OBJECTIVE The serum from Fuxinfang-treated rats can concentration-dependently inhibit the expressions of the DEGs occurring in hypoxia. Fuxinfang improves hypoxic injuries of HAECs possibly by down-regulating the expression of c-Fos to inhibit NR4A1 expression and suppressing hypoxia-induced p38 phosphorylation.
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Affiliation(s)
- J Xu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - J Shi
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - X Cai
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - S Huang
- Shanghai Pudong TCM Hospital Luoshan Branch, Shanghai 200136, China
| | - G Li
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
| | - Y Xu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China
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Lee C, Viswanathan G, Choi I, Jassal C, Kohlmann T, Rajagopal S. Beta-Arrestins and Receptor Signaling in the Vascular Endothelium. Biomolecules 2020; 11:biom11010009. [PMID: 33374806 PMCID: PMC7824595 DOI: 10.3390/biom11010009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/13/2020] [Accepted: 12/19/2020] [Indexed: 12/17/2022] Open
Abstract
The vascular endothelium is the innermost layer of blood vessels and is a key regulator of vascular tone. Endothelial function is controlled by receptor signaling through G protein-coupled receptors, receptor tyrosine kinases and receptor serine-threonine kinases. The β-arrestins, multifunctional adapter proteins, have the potential to regulate all of these receptor families, although it is unclear as to whether they serve to integrate signaling across all of these different axes. Notably, the β-arrestins have been shown to regulate signaling by a number of receptors important in endothelial function, such as chemokine receptors and receptors for vasoactive substances such as angiotensin II, endothelin-1 and prostaglandins. β-arrestin-mediated signaling pathways have been shown to play central roles in pathways that control vasodilation, cell proliferation, migration, and immune function. At this time, the physiological impact of this signaling has not been studied in detail, but a deeper understanding of it could lead to the development of novel therapies for the treatment of vascular disease.
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Affiliation(s)
- Claudia Lee
- Department of Biochemistry, School of Medicine, Duke University, Durham, NC 27710, USA;
| | - Gayathri Viswanathan
- Medical Center, Department of Medicine, Division of Cardiology, Duke University, Durham, NC 27710, USA; (G.V.); (I.C.)
| | - Issac Choi
- Medical Center, Department of Medicine, Division of Cardiology, Duke University, Durham, NC 27710, USA; (G.V.); (I.C.)
| | - Chanpreet Jassal
- College of Arts and Sciences, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
| | - Taylor Kohlmann
- Trinity College of Arts and Sciences, Duke University, Durham, NC 27708, USA;
| | - Sudarshan Rajagopal
- Department of Biochemistry, School of Medicine, Duke University, Durham, NC 27710, USA;
- Medical Center, Department of Medicine, Division of Cardiology, Duke University, Durham, NC 27710, USA; (G.V.); (I.C.)
- Correspondence:
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Groover MK, Richmond JM. Potential therapeutic manipulations of the CXCR3 chemokine axis for the treatment of inflammatory fibrosing diseases. F1000Res 2020; 9:1197. [PMID: 33145014 PMCID: PMC7590900 DOI: 10.12688/f1000research.26728.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/24/2020] [Indexed: 02/06/2023] Open
Abstract
Chemokines play important roles in homeostasis and inflammatory processes. While their roles in leukocyte recruitment are well-appreciated, chemokines play additional roles in the body, including mediating or regulating angiogenesis, tumor metastasis and wound healing. In this opinion article, we focus on the role of CXCR3 and its ligands in fibrotic processes. We emphasize differences of the effects of each ligand, CXCL9, CXCL10 and CXCL11, on fibroblasts in different tissues of the body. We include discussions of differences in signaling pathways that may account for protective or pro-fibrotic effects of each ligand in different experimental models and ex vivo analysis of human tissues. Our goal is to highlight potential reasons why there are disparate findings in different models, and to suggest ways in which this chemokine axis could be manipulated for the treatment of fibrosis.
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Affiliation(s)
- Morgan K. Groover
- Department of Dermatology, University of Massachussetts Medical School, Worcester, MA, 01605, USA
| | - Jillian M. Richmond
- Department of Dermatology, University of Massachussetts Medical School, Worcester, MA, 01605, USA
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Combined inhibition of Notch and FLT3 produces synergistic cytotoxic effects in FLT3/ITD + acute myeloid leukemia. Signal Transduct Target Ther 2020; 5:21. [PMID: 32296014 PMCID: PMC7067872 DOI: 10.1038/s41392-020-0108-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/10/2019] [Accepted: 12/08/2019] [Indexed: 12/30/2022] Open
Abstract
Internal tandem duplication (ITD) mutations of FMS-like tyrosine kinase-3 (FLT3) are the most frequent genetic alterations in acute myeloid leukemia (AML) and predict a poor prognosis. FLT3 tyrosine kinase inhibitors (TKIs) provide short-term clinical responses, but the long-term prognosis of FLT3/ITD+ AML patients remains poor. Notch signaling is important in numerous types of tumors. However, the role of Notch signaling in FLT3/ITD+ AML remains to be elucidated. In the current study, we found that Notch signaling was activated upon FLT3-TKI treatment in FLT3/ITD+ cell lines and primary cells. As Notch signaling can be blocked by γ-secretase inhibitors (GSIs), we examined the combinatorial antitumor efficacy of FLT3-TKIs and GSIs against FLT3/ITD+ AML and explored the underlying molecular mechanisms. As a result, we observed synergistic cytotoxic effects, and the treatment preferentially reduced cell proliferation and induced apoptosis in FLT3/ITD+ AML cell lines and in primary AML cells. Furthermore, the combination of FLT3-TKI and GSI eradicated leukemic cells and prolonged survival in an FLT3/ITD+ patient-derived xenograft AML model. Mechanistically, differential expression analysis suggested that CXCR3 may be partially responsible for the observed synergy, possibly through ERK signaling. Our findings suggest that combined therapies of FLT3-TKIs with GSI may be exploited as a potential therapeutic strategy to treat FLT3/ITD+ AML.
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Batista FP, de Aguiar RB, Sumikawa JT, Lobo YA, Bonturi CR, Ferreira RDS, Andrade SS, Guedes Paiva PM, dos Santos Correia MT, Vicente CM, Toma L, Sampaio MU, Paschoalin T, Girão MJBC, de Moraes JZ, de Paula CAA, Oliva MLV. Crataeva tapia bark lectin (CrataBL) is a chemoattractant for endothelial cells that targets heparan sulfate and promotes in vitro angiogenesis. Biochimie 2019; 166:173-183. [DOI: 10.1016/j.biochi.2019.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 04/08/2019] [Indexed: 12/31/2022]
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Li SM, Liu WT, Yang F, Yi QJ, Zhang S, Jia HL. Phosphorylated proteomics analysis of human coronary artery endothelial cells stimulated by Kawasaki disease patients serum. BMC Cardiovasc Disord 2019; 19:21. [PMID: 30654760 PMCID: PMC6337789 DOI: 10.1186/s12872-018-0982-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 12/17/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Kawasaki disease (KD) is an acute febrile childhood systemic vasculitis that disturbs coronary arteries. The pathogenesis remains unknown. The study of phosphorylated proteins helps to elucidate the relevant pathophysiological mechanisms of cardiovascular disease. However, few researches explored phosphorylated proteins in KD patients. METHODS We compared phosphoprotein profiles of HCAECs stimulated by the serum of KD patients and normal children using iTRAQ technology, TiO2 enrichment phosphorylated peptide and MS analysis. Then we conducted the functional analysis by ClueGO and the biological interaction networking analysis by ReactomeFIViz. Western blotting was performed to identify the hub proteins. RESULTS Our results revealed that phosphorylation of 148 proteins showed different intensities between the two HCAECs groups, which are enriched in MAPK, VEGFR, EGFR, Angiopoietin receptor, mTOR, FAK signaling pathway and so on. Through the Network Analyzer analysis, the hub proteins are CDKN1A, MAPK1 and POLR2A, which were experimentally validated. CONCLUSION In summary, we provided evidence addressing the valuable phosphorylation signaling that could be useful resource to understand the molecular mechanism and the potential targets for novel therapy of KD.
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Affiliation(s)
- Shui-Ming Li
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, Guangdong, China
| | - Wan-Ting Liu
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, No.601, West Huangpu Avenue, Guangzhou, 510632, Guangdong, China
| | - Fang Yang
- Department of Pediatrics, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Qi-Jian Yi
- Department of Cardiovascular Medicine, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child development and Disorder, China International Science and Technology Coorperation base of Child development and Critical Disorder, Chongqing Key Laboratory of Pediatrics, Chongqing, China.
| | - Shuai Zhang
- Department of Medical Biochemistry and Molecular Biology, School of Basic Medical Sciences, Jinan University, Guangzhou, Guangdong, China.
| | - Hong-Ling Jia
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, No.601, West Huangpu Avenue, Guangzhou, 510632, Guangdong, China.
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Wang J, Tian W, Wang S, Wei W, Wu D, Wang H, Wang L, Yang R, Ji A, Li Y. Anti-inflammatory and retinal protective effects of capsaicin on ischaemia-induced injuries through the release of endogenous somatostatin. Clin Exp Pharmacol Physiol 2017; 44:803-814. [PMID: 28429852 DOI: 10.1111/1440-1681.12769] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/31/2017] [Accepted: 04/15/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Jun Wang
- Henan University School of Medicine; Kaifeng China
| | - Wenke Tian
- Henan University School of Medicine; Kaifeng China
| | | | - Wenqiang Wei
- Henan University School of Medicine; Kaifeng China
| | - Dongdong Wu
- Henan University School of Medicine; Kaifeng China
| | | | - Li Wang
- The First Affiliated Hospital of Henan University; Kaifeng China
| | - Ruisheng Yang
- The First Affiliated Hospital of Henan University; Kaifeng China
| | - Ailing Ji
- Henan University School of Medicine; Kaifeng China
| | - Yanzhang Li
- Henan University School of Medicine; Kaifeng China
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Rahman N, Brauer PM, Ho L, Usenko T, Tewary M, Zúñiga-Pflücker JC, Zandstra PW. Engineering the haemogenic niche mitigates endogenous inhibitory signals and controls pluripotent stem cell-derived blood emergence. Nat Commun 2017; 8:15380. [PMID: 28541275 PMCID: PMC5477512 DOI: 10.1038/ncomms15380] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 03/22/2017] [Indexed: 12/13/2022] Open
Abstract
Efforts to recapitulate haematopoiesis, a process guided by spatial and temporal inductive signals, to generate haematopoietic progenitors from human pluripotent stem cells (hPSCs) have focused primarily on exogenous signalling pathway activation or inhibition. Here we show haemogenic niches can be engineered using microfabrication strategies by micropatterning hPSC-derived haemogenic endothelial (HE) cells into spatially-organized, size-controlled colonies. CD34+VECAD+ HE cells were generated with multi-lineage potential in serum-free conditions and cultured as size-specific haemogenic niches that displayed enhanced blood cell induction over non-micropatterned cultures. Intra-colony analysis revealed radial organization of CD34 and VECAD expression levels, with CD45+ blood cells emerging primarily from the colony centroid area. We identify the induced interferon gamma protein (IP-10)/p-38 MAPK signalling pathway as the mechanism for haematopoietic inhibition in our culture system. Our results highlight the role of spatial organization in hPSC-derived blood generation, and provide a quantitative platform for interrogating molecular pathways that regulate human haematopoiesis.
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Affiliation(s)
- Nafees Rahman
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3ES
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G9
| | - Patrick M. Brauer
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada M4N 3M5
| | - Lilian Ho
- Life Sciences (Biochemistry), University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Tatiana Usenko
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G9
| | - Mukul Tewary
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G9
- Collaborative Program in Developmental Biology, University of Toronto, Toronto, Ontario, Canada M5S 3E1
| | - Juan Carlos Zúñiga-Pflücker
- Biological Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada M4N 3M5
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada M5S 1A8
- Medicine by Design, a Canada First Research Excellence Program at the University of Toronto, Toronto, Ontario, Canada M5S 3G9
| | - Peter W. Zandstra
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3ES
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G9
- Medicine by Design, a Canada First Research Excellence Program at the University of Toronto, Toronto, Ontario, Canada M5S 3G9
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, Ontario, Canada M5S 3E1
- Collaborative Program in Developmental Biology, University of Toronto, Toronto, Ontario, Canada M5S 3E1
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陈 雷, 卢 小, 李 雅, 毛 周, 肖 銮, 禹 艳. [Effect of globular adiponectin on proliferation, migration and tube formation of ovarian microvascular endothelial cells]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:614-621. [PMID: 28539283 PMCID: PMC6780476 DOI: 10.3969/j.issn.1673-4254.2017.05.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To analyze the effect of globular adiponectin on angiogenesis of ovarian microvascular endothelial cells (OMECs). METHODS Mouse OMECs were isolated and purified by density gradient centrifugation with Percoll and identified by immunofluorescence analysis of follicle-stimulating hormone receptor (FSHR), luteinizing hormone receptor (LHR), and endothelial cell marker von Willebrand factor (vWF). The capillary-like tube formation of OMECs was determined by vascular endothelial growth factor A (VEGFA) treatment in Matrigel matrix. OMECs treated with recombinant globular adiponectin protein were examined for cell proliferation with MTS assay and cell migration with scratch wound healing assay, and capillary-like tube formation was tested in Matrigel matrix. Western blotting was performed to detect the effect of globular adiponectin on AMPK phosphorylation. RESULTS The signals of LHR and vWF, but not that of FSHR, were detected in the isolated cells. VEGFA treatment of the cells induced capillary-like tube formation, indicating their properties of ovarian-specific endothelial cells. Treatment with 1 and 3 µg/mL of recombinant globular adiponectin significantly increased the number of OMECs by (158.72∓14.50) % and (186.50∓4.20)% (P<0.01) and resulted in scratch wound closure rates of (49.43∓3.43)% (P<0.05) and (69.67∓1.2) % (P<0.01) respectively. The cells treated with 3 µg/mL globular adiponectin formed a capillary-tube length 6.63∓0.66 folds greater than that formed by the control cells (P<0.01). Treatment of the cells with 3 µg/mL globular adiponectin for 15 and 30 min resulted in pAMPK/AMPK ratios of 0.86∓0.08 and 0.66∓0.13, respectively significantly higher than that in the control cells (0.13∓0.12, P<0.01). Compound C obviously suppressed the tube formation and AMPK phosphorylation induced by globular adiponectin. CONCLUSION Globular adiponectin promotes angiogenesis of OMECs through activation of the AMPK signal pathway.
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Affiliation(s)
- 雷 陈
- 暨南大学附属第一医院麻醉科,广东 广州 510632Department of Anesthesia, First Affiliated Hospital, Jinan University, Guangzhou 510632, China
Department of Developmental and Regenerative Biology, College of Life Science and Technologies3, Jinan University, Guangzhou 510632, China
| | - 小圣 卢
- 暨南大学再生医学教育部重点实验室,广东 广州 510632Key Laboratory for Regenerative Medicine (JNU-CUHK), Ministry of Education, Jinan University, Guangzhou 510632, China
- 暨南大学生命科学技术学院发育与再生生物学系,广东 广州 510632Department of Developmental and Regenerative Biology, College of Life Science and Technologies3, Jinan University, Guangzhou 510632, China
| | - 雅兰 李
- 暨南大学附属第一医院麻醉科,广东 广州 510632Department of Anesthesia, First Affiliated Hospital, Jinan University, Guangzhou 510632, China
Department of Developmental and Regenerative Biology, College of Life Science and Technologies3, Jinan University, Guangzhou 510632, China
| | - 周飞 毛
- 暨南大学再生医学教育部重点实验室,广东 广州 510632Key Laboratory for Regenerative Medicine (JNU-CUHK), Ministry of Education, Jinan University, Guangzhou 510632, China
- 暨南大学生命科学技术学院发育与再生生物学系,广东 广州 510632Department of Developmental and Regenerative Biology, College of Life Science and Technologies3, Jinan University, Guangzhou 510632, China
| | - 銮娟 肖
- 暨南大学再生医学教育部重点实验室,广东 广州 510632Key Laboratory for Regenerative Medicine (JNU-CUHK), Ministry of Education, Jinan University, Guangzhou 510632, China
- 暨南大学生命科学技术学院发育与再生生物学系,广东 广州 510632Department of Developmental and Regenerative Biology, College of Life Science and Technologies3, Jinan University, Guangzhou 510632, China
| | - 艳红 禹
- 暨南大学再生医学教育部重点实验室,广东 广州 510632Key Laboratory for Regenerative Medicine (JNU-CUHK), Ministry of Education, Jinan University, Guangzhou 510632, China
- 暨南大学生命科学技术学院发育与再生生物学系,广东 广州 510632Department of Developmental and Regenerative Biology, College of Life Science and Technologies3, Jinan University, Guangzhou 510632, China
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Zhang RY, Yu ZH, Zeng L, Zhang S, Bai Y, Miao J, Chen L, Xie J, Zhang ZY. SHP2 phosphatase as a novel therapeutic target for melanoma treatment. Oncotarget 2016; 7:73817-73829. [PMID: 27650545 PMCID: PMC5342016 DOI: 10.18632/oncotarget.12074] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 09/02/2016] [Indexed: 12/23/2022] Open
Abstract
Melanoma ranks among the most aggressive and deadly human cancers. Although a number of targeted therapies are available, they are effective only in a subset of patients and the emergence of drug resistance often reduces durable responses. Thus there is an urgent need to identify new therapeutic targets and develop more potent pharmacological agents for melanoma treatment. Herein we report that SHP2 levels are frequently elevated in melanoma, and high SHP2 expression is significantly associated with more metastatic phenotype and poorer prognosis. We show that SHP2 promotes melanoma cell viability, motility, and anchorage-independent growth, through activation of both ERK1/2 and AKT signaling pathways. We demonstrate that SHP2 inhibitor 11a-1 effectively blocks SHP2-mediated ERK1/2 and AKT activation and attenuates melanoma cell viability, migration and colony formation. Most importantly, SHP2 inhibitor 11a-1 suppresses xenografted melanoma tumor growth, as a result of reduced tumor cell proliferation and enhanced tumor cell apoptosis. Taken together, our data reveal SHP2 as a novel target for melanoma and suggest SHP2 inhibitors as potential novel therapeutic agents for melanoma treatment.
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Affiliation(s)
- Ruo-Yu Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN 47907, USA
| | - Zhi-Hong Yu
- Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN 47907, USA
| | - Lifan Zeng
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Sheng Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN 47907, USA
| | - Yunpeng Bai
- Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN 47907, USA
| | - Jinmin Miao
- Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN 47907, USA
| | - Lan Chen
- Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN 47907, USA
| | - Jingwu Xie
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Zhong-Yin Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN 47907, USA
- Department of Chemistry, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN 47907, USA
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