1
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Sajadimajd S, Bahrami G, Mohammadi B, Madani SH. Notch signaling-induced cyclin d1 in diabetes ameliorating effects of the isolated polysaccharide from Rosa canina: In vitro and in vivo studies. Cell Biochem Funct 2022; 40:935-945. [PMID: 36285737 DOI: 10.1002/cbf.3755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 12/15/2022]
Abstract
Notch signaling has a role in the expansion of the pancreas and the pathogenesis of diabetes. Modulation of Notch signaling by natural products seems to pave the way for treating diabetes. This research aimed to scrutinize the involvement of the Notch cascade in the diabetes-ameliorating effects of an isolated polysaccharide from Rosa canina. The isolated polysaccharide was characterized using Fourier transform infrared, nuclear magnetic resonance, high-performance gel-permeation chromatography, and liquid chromatography with tandem mass spectrometry techniques. Rat pancreatic β cells and STZ-induced diabetic rats were treated with the isolated polysaccharide. MTT assay, cell cycle analysis, quantative realtime-polymerase chain reaction, immunohistochemistry, and immunoblotting were used to reveal the growth and the expression levels of Notch1, DLL4, Jagged-1, hes1, Ins-1, Pdx-1, and cyclin d1 in treated and untreated pancreatic cells and tissues. The ameliorating effect of the polysaccharide in STZ-treated cells was accomplished by upregulation of cyclin d1 and hes1 as well as cell cycle progression. Notch inhibition by LY-411575 was associated with the downregulation of cyclin d1 which upregulates with polysaccharide treatment. The significant expression of cyclin d1 (90%) and nuclear expression of hes1 in the pancreas of the polysaccharide group were accompanied by improvement of hyperglycemia and associated biochemical factors as well as regeneration of islet cells as compared to untreated diabetic rats. Based on these findings, upregulation of Notch signaling-induced cyclin d1 could be proposed as the underlying diabetes-reducing effects of the isolated polysaccharide derivative implying that cyclin d1 actuation through activation of the Notch-DLL4 circuit may play the causal role in the treatment of diabetes.
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Affiliation(s)
- Soraya Sajadimajd
- Department of Biology, Faculty of Sciences, Razi University, Kermanshah, Iran
| | - Gholamreza Bahrami
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Pharmacology and Toxicology, School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Bahareh Mohammadi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyed Hamid Madani
- Molecular Pathology Research Center, Imam Reza University Hospital, Kermanshah University of Medical, Kermanshah, Iran
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2
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Ciechanowska A, Gora IM, Sabalinska S, Ladyzynski P. The Effect of High and Variable Glucose on the Viability of Endothelial Cells Co-Cultured with Smooth Muscle Cells. Int J Mol Sci 2022; 23:ijms23126704. [PMID: 35743147 PMCID: PMC9223437 DOI: 10.3390/ijms23126704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/06/2022] [Accepted: 06/13/2022] [Indexed: 11/16/2022] Open
Abstract
Diabetes mellitus causes endothelial dysfunction. The aim of this study was to investigate the effect of normal (5 mmol/L), high (20 mmol/L), and fluctuating (5 and 20 mmol/L changed every day) glucose concentration in the culture medium on the viability of human umbilical vein endothelial cells (HUVECs) co-cultured with human umbilical artery smooth muscle cells (HUASMCs). The cultures were conducted on semi-permeable flat polysulfone (PSU) fibronectin-coated membranes immobilized in self-made inserts. The insert contained either HUVECs on a single membrane or HUASMCs and HUVECs on two membranes close to each other. Cultures were conducted for 7 or 14 days. Apoptosis, mitochondrial potential, and the production of reactive oxygen species and lactate by HUVECs were investigated. The results indicate that fluctuations in glucose concentration have a stronger negative effect on HUVECs viability than constant high glucose concentration. High and fluctuating glucose concentrations slow down cell proliferation compared to the culture carried out in the medium with normal glucose concentration. In conclusion, HUASMCs affect the viability of HUVECs when both types of cells are co-cultured in medium with normal or variable glucose concentration.
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3
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Sajadimajd S, Mohammadi B, Bahrami G, Madani SH, Hatami R, Miraghaee SS. Modulation of Notch signaling and angiogenesis via an isolated polysaccharide from
Momordica charantia
in diabetic rats. J Food Biochem 2021; 46:e14033. [DOI: 10.1111/jfbc.14033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/20/2021] [Accepted: 11/24/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Soraya Sajadimajd
- Department of Biology, School of Sciences Razi University Kermanshah Iran
| | - Bahareh Mohammadi
- Medical Biology Research Center, Health Technology Institute Kermanshah University of Medical Sciences Kermanshah Iran
| | - Gholamreza Bahrami
- Medical Biology Research Center, Health Technology Institute Kermanshah University of Medical Sciences Kermanshah Iran
- School of Pharmacy Kermanshah University of Medical Sciences Kermanshah Iran
| | - Seyed Hamid Madani
- Molecular Pathology Research Center, Clinical Research Development Center, Imam Reza Hospital Kermanshah University of Medical Sciences Kermanshah Iran
| | - Razieh Hatami
- Medical Biology Research Center, Health Technology Institute Kermanshah University of Medical Sciences Kermanshah Iran
| | - Seyed Shahram Miraghaee
- Medical Biology Research Center, Health Technology Institute Kermanshah University of Medical Sciences Kermanshah Iran
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4
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Vakhrushev IV, Nezhurina EK, Karalkin PA, Tsvetkova AV, Sergeeva NS, Majouga AG, Yarygin KN. Heterotypic Multicellular Spheroids as Experimental and Preclinical Models of Sprouting Angiogenesis. BIOLOGY 2021; 11:18. [PMID: 35053016 PMCID: PMC8772844 DOI: 10.3390/biology11010018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/18/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022]
Abstract
Sprouting angiogenesis is the common response of live tissues to physiological and pathological angiogenic stimuli. Its accurate evaluation is of utmost importance for basic research and practical medicine and pharmacology and requires adequate experimental models. A variety of assays for angiogenesis were developed, none of them perfect. In vitro approaches are generally less physiologically relevant due to the omission of essential components regulating the process. However, only in vitro models can be entirely non-xenogeneic. The limitations of the in vitro angiogenesis assays can be partially overcome using 3D models mimicking tissue O2 and nutrient gradients, the influence of the extracellular matrix (ECM), and enabling cell-cell interactions. Here we present a review of the existing models of sprouting angiogenesis that are based on the use of endothelial cells (ECs) co-cultured with perivascular or other stromal cells. This approach provides an excellent in vitro platform for further decoding of the cellular and molecular mechanisms of sprouting angiogenesis under conditions close to the in vivo conditions, as well as for preclinical drug testing and preclinical research in tissue engineering and regenerative medicine.
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Affiliation(s)
- Igor V. Vakhrushev
- Laboratory of Cell Biology, Institute of Biomedical Chemistry, 119121 Moscow, Russia;
| | - Elizaveta K. Nezhurina
- P.A. Hertsen Moscow Oncology Research Center, National Medical Research Radiological Center, 125284 Moscow, Russia;
| | - Pavel A. Karalkin
- Institute for Cluster Oncology, Sechenov University, 119435 Moscow, Russia;
| | | | - Nataliya S. Sergeeva
- Department of Biology, Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Alexander G. Majouga
- Faculty of Chemical and Pharmaceutical Technologies and Biomedical Products, D. Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia;
| | - Konstantin N. Yarygin
- Laboratory of Cell Biology, Institute of Biomedical Chemistry, 119121 Moscow, Russia;
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5
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Zhou H, Zhao W, Zheng Z, Aweya JJ, Zhang Y, Zhu J, Zhao Y, Chen X, Yao D. The Notch receptor-ligand Delta is involved in the immune response of Penaeus vannamei. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 125:104147. [PMID: 34111502 DOI: 10.1016/j.dci.2021.104147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/10/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
In the Notch signaling pathway in vertebrates and invertebrates, the ligand Delta plays crucial roles in cell proliferation, differentiation, and immunity. Although the Notch signaling pathway has recently been implicated in the immune defense of Penaeus vannamei, the association of Delta with this immune response remains unclear. Here, we cloned and characterized the Delta homolog in P. vannamei (designated as PvDelta). PvDelta has a 2493 bp open reading frame (ORF) encoding a putative protein of 830 amino acids. Bioinformatics analysis revealed that PvDelta contains an N-terminal signal peptide, a conserved Notch ligand (MNNL) domain, a Delta/Serrate/Lag-2 segment, 9 epidermal growth factors segments, a transmembrane domain, and shares high homology with other Delta family members. Transcripts of PvDelta were detected in all shrimp tissues tested and were induced by Vibrio parahaemolyticus, white spot syndrome virus (WSSV), and lipopolysaccharide (LPS), indicating its involvement in shrimp immune response. Moreover, after PvDelta knockdown followed by LPS stimulation, the expression of Notch signaling pathway genes (i.e., PvNotch, PvCSL, and PvHey) was downregulated. Finally, shrimp depleted of PvDelta showed a lower survival rate in response to V. parahaemolyticus challenge. In sum, our data reveal that PvDelta is involved in the innate immunity of shrimp by positively modulating the Notch signaling pathway.
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Affiliation(s)
- Hui Zhou
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Weiling Zhao
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Zhihong Zheng
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Jude Juventus Aweya
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Yueling Zhang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Jinghua Zhu
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Yongzhen Zhao
- Guangxi Academy of Fishery Sciences, Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Nanning, 530021, China
| | - Xiuli Chen
- Guangxi Academy of Fishery Sciences, Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Nanning, 530021, China
| | - Defu Yao
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China.
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6
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Park JJ. Epidemiology, Pathophysiology, Diagnosis and Treatment of Heart Failure in Diabetes. Diabetes Metab J 2021; 45:146-157. [PMID: 33813813 PMCID: PMC8024162 DOI: 10.4093/dmj.2020.0282] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/25/2021] [Indexed: 12/11/2022] Open
Abstract
The cardiovascular disease continuum begins with risk factors such as diabetes mellitus (DM), progresses to vasculopathy and myocardial dysfunction, and finally ends with cardiovascular death. Diabetes is associated with a 2- to 4-fold increased risk for heart failure (HF). Moreover, HF patients with DM have a worse prognosis than those without DM. Diabetes can cause myocardial ischemia via micro- and macrovasculopathy and can directly exert deleterious effects on the myocardium. Hyperglycemia, hyperinsulinemia, and insulin resistance can cause alterations in vascular homeostasis. Then, reduced nitric oxide and increased reactive oxygen species levels favor inflammation leading to atherothrombotic progression and myocardial dysfunction. The classification, diagnosis, and treatment of HF for a patient with and without DM remain the same. Until now, drugs targeting neurohumoral and metabolic pathways improved mortality and morbidity in HF with reduced ejection fraction (HFrEF). Therefore, all HFrEF patients should receive guideline-directed medical therapy. By contrast, drugs modulating neurohumoral activity did not improve survival in HF with preserved ejection fraction (HFpEF) patients. Trials investigating whether sodium-glucose cotransporter-2 inhibitors are effective in HFpEF are on-going. This review will summarize the epidemiology, pathophysiology, and treatment of HF in diabetes.
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Affiliation(s)
- Jin Joo Park
- Cardiovascular Center, Division of Cardiology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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7
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Tan S, Zang G, Wang Y, Sun Z, Li Y, Lu C, Wang Z. Differences of Angiogenesis Factors in Tumor and Diabetes Mellitus. Diabetes Metab Syndr Obes 2021; 14:3375-3388. [PMID: 34335038 PMCID: PMC8318726 DOI: 10.2147/dmso.s315362] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/04/2021] [Indexed: 12/11/2022] Open
Abstract
Angiogenesis, as a process occurring under the regulation of a variety of factors, is one of the important ways of vascular development. It coexists in a variety of pathological and physiological processes. Now a large number of studies have proved that tumor growth, metastasis, and various vascular complications of diabetes are closely related to angiogenesis, and an increasing number of studies have shown that there are many common factors between the two. But angiogenesis is the opposite of the two: it is enhanced in tumors and suppressed in diabetes. Therefore, this review discusses the causes of the phenomenon from the expression of various factors affecting angiogenesis in these two diseases and their effects on angiogenesis in the relevant microenvironment, as well as the application status of these factors or cells as therapeutic targets in the treatment of these two diseases.
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Affiliation(s)
- Shidong Tan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Guangyao Zang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Ying Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Zhen Sun
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Yalan Li
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
| | - Cheng Lu
- General Office, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
- Correspondence: Cheng Lu General Office, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Zhenjiang, 212001, People's Republic of China, +86 511 88986902 Email
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, People’s Republic of China
- Zhongqun Wang Department of Cardiology, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Zhenjiang, 212001, People’s Republic of ChinaTel +86 511 85030586 Email
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8
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Chen J, Tan W. Platelet activation and immune response in diabetic microangiopathy. Clin Chim Acta 2020; 507:242-247. [DOI: 10.1016/j.cca.2020.04.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 04/29/2020] [Accepted: 04/29/2020] [Indexed: 01/19/2023]
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9
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Fiori A, Hammes HP, Bieback K. Adipose-derived mesenchymal stromal cells reverse high glucose-induced reduction of angiogenesis in human retinal microvascular endothelial cells. Cytotherapy 2020; 22:261-275. [PMID: 32247542 DOI: 10.1016/j.jcyt.2020.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/12/2020] [Accepted: 02/22/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND AIMS Diabetic retinopathy (DR) is characterized by a progressive alteration of the retinal microvasculature, arising from microaneurysms to leaky vessels and finally abnormal neovascularization. The hyperglycemia-mediated loss of pericytes is a key event in vessel degeneration causing vascular destabilization. To overcome this, mesenchymal stromal cells (MSCs) have been tested as pericyte replacement in several animal models showing repair and regeneration of DR-damaged vasculature. METHODS We hypothesized that adipose-derived mesenchymal stromal cells (ASCs) resist high glucose-induced challenges and protect human retinal microvascular endothelial cells (HRMVECs) from glucose-mediated injury. ASCs and HRMVECs were cultured under normal-glucose (NG; 1 g/L) and high-glucose (HG; 4.5 g/L) conditions comparing their phenotype and angiogenic potential. RESULTS Whereas ASCs were generally unaffected by HG, HG caused a reduction of the angiogenic potential in HRMVEC. Indeed, HG-treated HRMVECs formed fewer vascular tube structures in a basement membrane angiogenesis assay. However, this was not observed in a direct ASC and HRMVEC coculture angiogenesis assay. Increased oxidative stress levels appeared to be linked to the HG-induced reduction of angiogenesis, which could be restored by ASC-conditioned medium and antioxidant treatment. CONCLUSIONS These findings suggest that ASC resist HG-stress whereas endothelial cell angiogenic capacity is reduced. Thus, ASC may be potentially therapeutically active in DR by restoring angiogenic deficits in retinal endothelial cells by the secretion of proangiogenic factors. However, these data also inquire for a thorough risk assessment about the timing of the ASC-based cell therapy, which can be considered advantageous at early stage of DR, but possibly detrimental at the late neo-angiogenic stage of DR.
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Affiliation(s)
- Agnese Fiori
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany, German Red Cross Blood Donor Service Baden-Württemberg-Hessen, Institute Mannheim, Germany
| | - Hans-Peter Hammes
- Endocrinology Department, 5th Medical Department, Medical Faculty Mannheim, Heidelberg University Mannheim, Baden-Württemberg, Germany
| | - Karen Bieback
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany, German Red Cross Blood Donor Service Baden-Württemberg-Hessen, Institute Mannheim, Germany; Flow Core Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Baden-Württemberg, Germany.
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10
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Hyperglycemia compromises Rat Cortical Bone by Increasing Osteocyte Lacunar Density and Decreasing Vascular Canal Volume. Commun Biol 2020; 3:20. [PMID: 31925331 PMCID: PMC6952406 DOI: 10.1038/s42003-019-0747-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 12/06/2019] [Indexed: 12/13/2022] Open
Abstract
Uncontrolled diabetes is associated with increased risk of bony fractures. However, the mechanisms have yet to be understood. Using high-resolution synchrotron micro-CT, we calculated the changes in the microstructure of femoral cortices of streptozotocin-induced hyperglycemic (STZ) Wistar Albino rats and tested the mechanical properties of the mineralized matrix by nanoindentation. Total lacunar volume of femoral cortices increased in STZ group due to a 9% increase in lacunar density. However, total vascular canal volume decreased in STZ group due to a remarkable decrease in vascular canal diameter (7 ± 0.3 vs. 8.5 ± 0.4 µm). Osteocytic territorial matrix volume was less in the STZ group (14,908 ± 689 µm3) compared with healthy controls (16,367 ± 391 µm3). In conclusion, hyperglycemia increased cellularity and lacunar density, decreased osteocyte territorial matrix, and reduced vascular girth, in addition to decreasing matrix mechanical properties in the STZ group when compared with euglycemic controls. Birol Ay et al. use high-resolution synchrotron radiation micro-CT to calculate the changes in the microstructure of femoral cortices in STZ-induced hyperglycemic rats. They show that hyperglycemia increases lacunar density due to a reduction in osteocytic territorial matrix volume but decreases total vascular canal volume due to a decrease in canal diameter.
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11
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Bats ML, Bougaran P, Peghaire C, Gueniot F, Abelanet A, Chan H, Séguy C, Jeanningros S, Jaspard-Vinassa B, Couffinhal T, Duplàa C, Dufourcq P. Therapies targeting Frizzled-7/β-catenin pathway prevent the development of pathological angiogenesis in an ischemic retinopathy model. FASEB J 2019; 34:1288-1303. [PMID: 31914666 DOI: 10.1096/fj.201901886r] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 10/28/2019] [Accepted: 11/11/2019] [Indexed: 12/24/2022]
Abstract
Retinopathies remain major causes of visual impairment in diabetic patients and premature infants. Introduction of anti-angiogenic drugs targeting vascular endothelial growth factor (VEGF) has transformed therapy for these proliferative retinopathies. However, limitations associated with anti-VEGF medications require to unravel new pathways of vessel growth to identify potential drug targets. Here, we investigated the role of Wnt/Frizzled-7 (Fzd7) pathway in a mouse model of oxygen-induced retinopathy (OIR). Using transgenic mice, which enabled endothelium-specific and time-specific Fzd7 deletion, we demonstrated that Fzd7 controls both vaso-obliteration and neovascular phases (NV). Deletion of Fzd7 at P12, after the ischemic phase of OIR, prevented formation of aberrant neovessels into the vitreous by suppressing proliferation of endothelial cells (EC) in tufts. Next we validated in vitro two Frd7 blocking strategies: a monoclonal antibody (mAbFzd7) against Fzd7 and a soluble Fzd7 receptor (CRD). In vivo a single intravitreal microinjection of mAbFzd7 or CRD significantly attenuated retinal neovascularization (NV) in mice with OIR. Molecular analysis revealed that Fzd7 may act through the activation of Wnt/β-catenin and Jagged1 expression to control EC proliferation in extra-retinal neovessels. We identified Fzd7/β-catenin signaling as new regulator of pathological retinal NV. Fzd7 appears to be a potent pharmacological target to prevent or treat aberrant angiogenesis of ischemic retinopathies.
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Affiliation(s)
- Marie-Lise Bats
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France.,Service de Biochimie clinique, CHU de Bordeaux, Bordeaux, France
| | - Pauline Bougaran
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Claire Peghaire
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,NHLI-Vascular Science, Imperial College London, London, UK
| | - Florian Gueniot
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Alice Abelanet
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Hélène Chan
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France
| | - Camille Séguy
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France
| | | | - Béatrice Jaspard-Vinassa
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Thierry Couffinhal
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France.,Service des Maladies cardiaques et vasculaires, CHU de Bordeaux, Bordeaux, France
| | - Cécile Duplàa
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
| | - Pascale Dufourcq
- Biology of Cardiovascular Diseases, Inserm U1034, Pessac, France.,Biology of Cardiovascular Diseases, University of Bordeaux U1034, Bordeaux, France
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12
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van Engeland NCA, Suarez Rodriguez F, Rivero-Müller A, Ristori T, Duran CL, Stassen OMJA, Antfolk D, Driessen RCH, Ruohonen S, Ruohonen ST, Nuutinen S, Savontaus E, Loerakker S, Bayless KJ, Sjöqvist M, Bouten CVC, Eriksson JE, Sahlgren CM. Vimentin regulates Notch signaling strength and arterial remodeling in response to hemodynamic stress. Sci Rep 2019; 9:12415. [PMID: 31455807 PMCID: PMC6712036 DOI: 10.1038/s41598-019-48218-w] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/30/2019] [Indexed: 01/12/2023] Open
Abstract
The intermediate filament (IF) cytoskeleton has been proposed to regulate morphogenic processes by integrating the cell fate signaling machinery with mechanical cues. Signaling between endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) through the Notch pathway regulates arterial remodeling in response to changes in blood flow. Here we show that the IF-protein vimentin regulates Notch signaling strength and arterial remodeling in response to hemodynamic forces. Vimentin is important for Notch transactivation by ECs and vimentin knockout mice (VimKO) display disrupted VSMC differentiation and adverse remodeling in aortic explants and in vivo. Shear stress increases Jagged1 levels and Notch activation in a vimentin-dependent manner. Shear stress induces phosphorylation of vimentin at serine 38 and phosphorylated vimentin interacts with Jagged1 and increases Notch activation potential. Reduced Jagged1-Notch transactivation strength disrupts lateral signal induction through the arterial wall leading to adverse remodeling. Taken together we demonstrate that vimentin forms a central part of a mechanochemical transduction pathway that regulates multilayer communication and structural homeostasis of the arterial wall.
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Affiliation(s)
- Nicole C A van Engeland
- Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland.,Eindhoven University of Technology, Department of Biomedical Engineering, 5600, MB, Eindhoven, The Netherlands
| | - Freddy Suarez Rodriguez
- Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland.,Turku Bioscience, Åbo Akademi University and University of Turku, Turku, Finland
| | - Adolfo Rivero-Müller
- Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland.,Department of Biochemistry and Molecular Biology, Medical University of Lublin, Lublin, Poland
| | - Tommaso Ristori
- Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland.,Eindhoven University of Technology, Department of Biomedical Engineering, 5600, MB, Eindhoven, The Netherlands.,Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Camille L Duran
- Department of Molecular & Cellular Medicine, Texas A&M University Health Science Center, College Station, TX, 77843, Texas, USA
| | - Oscar M J A Stassen
- Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland.,Turku Bioscience, Åbo Akademi University and University of Turku, Turku, Finland
| | - Daniel Antfolk
- Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland.,Turku Bioscience, Åbo Akademi University and University of Turku, Turku, Finland
| | - Rob C H Driessen
- Eindhoven University of Technology, Department of Biomedical Engineering, 5600, MB, Eindhoven, The Netherlands
| | - Saku Ruohonen
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - Suvi T Ruohonen
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland.,Turku Center for Disease Modelling, University of Turku, Turku, Finland
| | - Salla Nuutinen
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland
| | - Eriika Savontaus
- Institute of Biomedicine, Research Centre for Integrative Physiology and Pharmacology, University of Turku, Turku, Finland.,Turku Center for Disease Modelling, University of Turku, Turku, Finland
| | - Sandra Loerakker
- Eindhoven University of Technology, Department of Biomedical Engineering, 5600, MB, Eindhoven, The Netherlands.,Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Kayla J Bayless
- Department of Molecular & Cellular Medicine, Texas A&M University Health Science Center, College Station, TX, 77843, Texas, USA
| | - Marika Sjöqvist
- Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland.,Turku Bioscience, Åbo Akademi University and University of Turku, Turku, Finland
| | - Carlijn V C Bouten
- Eindhoven University of Technology, Department of Biomedical Engineering, 5600, MB, Eindhoven, The Netherlands.,Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - John E Eriksson
- Turku Bioscience, Åbo Akademi University and University of Turku, Turku, Finland
| | - Cecilia M Sahlgren
- Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland. .,Eindhoven University of Technology, Department of Biomedical Engineering, 5600, MB, Eindhoven, The Netherlands. .,Turku Bioscience, Åbo Akademi University and University of Turku, Turku, Finland. .,Institute of Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands.
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13
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Park JJ, Kim SH, Kim MA, Chae IH, Choi DJ, Yoon CH. Effect of Hyperglycemia on Myocardial Perfusion in Diabetic Porcine Models and Humans. J Korean Med Sci 2019; 34:e202. [PMID: 31347313 PMCID: PMC6660319 DOI: 10.3346/jkms.2019.34.e202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 07/03/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Diabetes mellitus (DM) causes macro- and microvasculopathy, but data on cardiac microvascular changes in large animals are scarce. We sought to determine the effect of DM on macro- and microvascular changes in diabetic pigs and humans. METHODS Eight domestic pigs (4 with type I diabetes and 4 controls) underwent coronary angiography with optical coherence tomography (OCT; at baseline and 1 and 2 months), coronary computed tomography angiography, cardiac magnet resonance (CMR) imaging, and histologic examination. RESULTS The diabetic pigs had more irregular capillaries with acellular capillaries and a smaller capillary diameter (11.7 ± 0.33 μm vs. 13.5 ± 0.53 μm; P < 0.001) than those of the control pigs. The OCT showed no significant epicardial stenosis in either group; however diabetic pigs had a greater intima-media thickness. CMR results showed that diabetic pigs had a lower relative upslope at rest (31.3 ± 5.9 vs. 37.9 ± 8.1; P = 0.011) and during stress (18.0 ± 3.0 vs. 21.6 ± 2.8; P = 0.007) than the control pigs, implying decreased myocardial perfusion. Among the 79 patients with ST elevation myocardial infarction, 25 had diabetes and they had lower myocardial perfusion on CMR as well. CONCLUSION DM causes microvascular remodeling and a decrease in myocardial perfusion in large animals at a very early stage of the disease course. Early and effective interventions are necessary to interrupt the progression of vascular complications in diabetic patients.
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Affiliation(s)
- Jin Joo Park
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sun Hwa Kim
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Myung A Kim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - In Ho Chae
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ju Choi
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Chang Hwan Yoon
- Division of Cardiology, Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea.
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14
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Jiang B, Lv Q, Wan W, Le L, Xu L, Hu K, Xiao P. Transcriptome analysis reveals the mechanism of the effect of flower tea Coreopsis tinctoria on hepatic insulin resistance. Food Funct 2019; 9:5607-5620. [PMID: 30370909 DOI: 10.1039/c8fo00965a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Non-Camellia tea and herbal medicine help prevent the development of diabetes and other metabolic diseases. Previous studies revealed that Coreopsis tinctoria (CT) flower tea increases insulin sensitivity and, in some high-fat diet (HFD)-fed rats, even prevents hepatic metabolic disorders. However, the molecular mechanisms by which CT improves insulin resistance are not known. In this study, six-week-old rats were fed a normal diet (ND), an HFD or an HFD supplemented with CT for 8 weeks. Serum samples were collected, and the livers were extracted for RNA-seq gene expression analysis. Real-time PCR and western blotting further verified the RNA-seq results. In our results, dietary CT ameliorated HFD-induced hepatosteatosis, glucose intolerance, and insulin resistance. In the HFD group, 1667 differentially expressed genes (DEGs) were identified compared with the ND group. In the CT group, 327 DEGs were identified compared with the HFD group. Some of these DEGs were related to insulin signalling, hepatic lipogenesis and glucose homeostasis. This study suggested that insulin resistance with hyperinsulinaemia, and not insulin insufficiency, is an early problem in HFD-fed rats, and CT downregulates insulin secretion genes (e.g., Rasd1, Stxbp1 and Sfxn1). Hepatic gene and protein expression analyses indicated that the regulatory effects of CT on glucose and lipid homeostasis are likely mediated via the Akt/FoxO1 signalling pathway and are regulated by the transcription factors hairy and enhancer of split 1 (HES1) and small heterodimer partner (SHP). Our study provides transcriptomic evidence of the complex pathogenic mechanism involved in hepatic insulin resistance and proves that supplementation with CT improves insulin resistance at a global scale.
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Affiliation(s)
- Baoping Jiang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China.
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15
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NOTCH1 signaling induces pathological vascular permeability in diabetic retinopathy. Proc Natl Acad Sci U S A 2019; 116:4538-4547. [PMID: 30787185 DOI: 10.1073/pnas.1814711116] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Diabetic macular edema is a major complication of diabetes resulting in loss of central vision. Although heightened vessel leakiness has been linked to glial and neuronal-derived factors, relatively little is known on the mechanisms by which mature endothelial cells exit from a quiescent state and compromise barrier function. Here we report that endothelial NOTCH1 signaling in mature diabetic retinas contributes to increased vascular permeability. By providing both human and mouse data, we show that NOTCH1 ligands JAGGED1 and DELTA LIKE-4 are up-regulated secondary to hyperglycemia and activate both canonical and rapid noncanonical NOTCH1 pathways that ultimately disrupt endothelial adherens junctions in diabetic retinas by causing dissociation of vascular endothelial-cadherin from β-catenin. We further demonstrate that neutralization of NOTCH1 ligands prevents diabetes-induced retinal edema. Collectively, these results identify a fundamental process in diabetes-mediated vascular permeability and provide translational rational for targeting the NOTCH pathway (primarily JAGGED1) in conditions characterized by compromised vascular barrier function.
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16
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Liu H, Zhang W, Lilly B. Evaluation of Notch3 Deficiency in Diabetes-Induced Pericyte Loss in the Retina. J Vasc Res 2018; 55:308-318. [PMID: 30347392 PMCID: PMC6280662 DOI: 10.1159/000493151] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 08/22/2018] [Indexed: 12/14/2022] Open
Abstract
Loss of vascular pericytes has long been associated with the onset of diabetic retinopathy; however, mechanisms contributing to pericyte dropout are not understood. Notch3 has been implicated in pericyte stability and survival, and linked to vascular integrity. Notch3 mutant mice exhibit progressive loss of retinal pericytes. Given that diabetic retinopathy is associated with pericyte loss, we sought to determine whether perturbation of Notch3 signaling contributes to diabetes-induced pericyte dropout and capillary degeneration. We utilized a pericyte-expressed LacZ transgene (XlacZ4) to examine pericyte loss in retinas of a type I diabetic mouse model (Ins2Akita) and Notch3-deficient mice. Notch3 null animals showed a dramatic loss of the LacZ marker by 8 weeks of age, while Ins2Akita diabetic and Notch3 heterozygous mice exhibited a much slower and subtler loss of LacZ. Although combined Notch3 heterozygosity in Ins2Akita diabetic animals did not show further deficits, the trypsin digest method revealed that Notch3 haploinsufficiency increased the formation of acellular capillaries in diabetic mice. Our data further indicate that Notch signaling is blunted in diabetic retinas and in cells exposed to hyperglycemia. These results are the first to demonstrate an association between Notch3 signaling, pericyte loss, and diabetic retinopathy.
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Affiliation(s)
- Hua Liu
- Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, Texas, USA
- Center for Biomedical Engineering, University of Texas Medical Branch, Galveston, Texas, USA
| | - Wenbo Zhang
- Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, Texas, USA
- Departments of Neuroscience, Cell Biology and Anatomy, University of Texas Medical Branch, Galveston, Texas, USA
| | - Brenda Lilly
- Center for Cardiovascular Research, Columbus, Ohio,
- The Heart Center, Nationwide Children's Hospital, Columbus, Ohio,
- Department of Pediatrics, The Ohio State University, Columbus, Ohio,
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17
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Tao SC, Rui BY, Wang QY, Zhou D, Zhang Y, Guo SC. Extracellular vesicle-mimetic nanovesicles transport LncRNA-H19 as competing endogenous RNA for the treatment of diabetic wounds. Drug Deliv 2018; 25:241-255. [PMID: 29334272 PMCID: PMC6058500 DOI: 10.1080/10717544.2018.1425774] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Diabetic wounds, one of the most enervating complications of diabetes mellitus, affect millions of people worldwide annually. Vascular insufficiency, caused by hyperglycemia, is one of the primary causes and categories of diabetic impaired wound healing. Recently, long noncoding RNA (LncRNA)-H19, which is significantly decreased in diabetes and may be crucial in triggering angiogenesis, has attracted increasing interest. The possible relationship between the decrease of LncRNA-H19 and the impairment of angiogenesis in diabetes could involve impairment of the insulin-phosphatidylinositol 3-kinase (PI3K)-Akt pathway via the interdiction of LncRNA-H19. Thus, a therapeutic strategy utilizing LncRNA-H19 delivery is feasible. In this study, we investigated the possibility of using high-yield extracellular vesicle-mimetic nanovesicles (EMNVs) as an effective nano-drug delivery system for LncRNA, and studied the function of EMNVs with a high content of LncRNA-H19 (H19EMNVs). The results, which were exciting, showed that H19EMNVs had a strong ability to neutralize the regeneration-inhibiting effect of hyperglycemia, and could remarkably accelerate the healing processes of chronic wounds. Our results suggest that bioengineered EMNVs can serve as a powerful instrument to effectively deliver LncRNA and will be an extremely promising multifunctional drug delivery system in the immediate future.
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Affiliation(s)
- Shi-Cong Tao
- a Department of Orthopedic Surgery , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Bi-Yu Rui
- a Department of Orthopedic Surgery , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Qi-Yang Wang
- a Department of Orthopedic Surgery , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Ding Zhou
- a Department of Orthopedic Surgery , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Yang Zhang
- b Department of Pharmacy , Shanghai Tenth People's Hospital of Tongji University , Shanghai , China
| | - Shang-Chun Guo
- c Institute of Microsurgery on Extremities , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
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18
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Qiu F, Tong H, Wang Y, Tao J, Wang H, Chen L. Recombinant human maspin inhibits high glucose-induced oxidative stress and angiogenesis of human retinal microvascular endothelial cells via PI3K/AKT pathway. Mol Cell Biochem 2018; 446:127-136. [PMID: 29363056 DOI: 10.1007/s11010-018-3280-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 01/16/2018] [Indexed: 12/13/2022]
Abstract
Maspin is known as a tumor suppressor and a potent angiogenesis inhibitor, however, its effects on proliferative diabetic retinopathy (PDR) have not been fully elucidated. This study aimed at evaluating the effects of maspin on high glucose-induced oxidative stress and angiogenesis in human retinal microvascular endothelial cells (HRMECs). Herein, HRMECs were treated with 0.25, 0.5, or 1 µM recombinant human maspin in the presence of 30 mM glucose, and their proliferation, tube formation, and oxidative stress responses were further detected. Our results revealed that maspin inhibited the high glucose-induced proliferation, migration, and tube formation of HRMECs. Maspin also decreased reactive oxygen species, nitric oxide level, and increased glutathione S-transferase activity in HRMECs. Meanwhile, maspin reduced the mRNA and protein levels of hypoxia-inducible factor-1α and vascular endothelial growth factor in high glucose-stimulated cells in a dose-dependent manner. Additionally, the high glucose-induced elevation of phosphorylated phosphoinositide-3-kinase (p-PI3K) and phosphorylated AKT was also suppressed by maspin. In summary, our data suggest that maspin inhibits high glucose-induced proliferation, oxidative stress, and angiogenesis of HRMECs at least by modulating the PI3K/AKT pathway. Maspin may be a potential therapeutic agent for the prevention and treatment of PDR.
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Affiliation(s)
- Feng Qiu
- Department of Ophthalmology, Shenyang Fourth People's Hospital, 20 South Huanghe Avenue, Shenyang, 110031, People's Republic of China.
| | - Huijuan Tong
- Department of Nursing, Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Yawen Wang
- Department of Ophthalmology, Shenyang Fourth People's Hospital, 20 South Huanghe Avenue, Shenyang, 110031, People's Republic of China
| | - Jun Tao
- Department of Ophthalmology, Shenyang Fourth People's Hospital, 20 South Huanghe Avenue, Shenyang, 110031, People's Republic of China
| | - Hailin Wang
- Department of Ophthalmology, Shenyang Fourth People's Hospital, 20 South Huanghe Avenue, Shenyang, 110031, People's Republic of China
| | - Lei Chen
- Department of Ophthalmology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
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19
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Control of Blood Vessel Formation by Notch Signaling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1066:319-338. [PMID: 30030834 DOI: 10.1007/978-3-319-89512-3_16] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Blood vessels span throughout the body to nourish tissue cells and to provide gateways for immune surveillance. Endothelial cells that line capillaries have the remarkable capacity to be quiescent for years but to switch rapidly into the activated state once new blood vessels need to be formed. In addition, endothelial cells generate niches for progenitor and tumor cells and provide organ-specific paracrine (angiocrine) factors that control organ development and regeneration, maintenance of homeostasis and tumor progression. Recent data indicate a pivotal role for blood vessels in responding to metabolic changes and that endothelial cell metabolism is a novel regulator of angiogenesis. The Notch pathway is the central signaling mode that cooperates with VEGF, WNT, BMP, TGF-β, angiopoietin signaling and cell metabolism to orchestrate angiogenesis, tip/stalk cell selection and arteriovenous specification. Here, we summarize the current knowledge and implications regarding the complex roles of Notch signaling during physiological and tumor angiogenesis, the dynamic nature of tip/stalk cell selection in the nascent vessel sprout and arteriovenous differentiation. Furthermore, we shed light on recent work on endothelial cell metabolism, perfusion-independent angiocrine functions of endothelial cells in organ-specific vascular beds and how manipulation of Notch signaling may be used to target the tumor vasculature.
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20
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A synthetic cell permeable antioxidant protects neurons against acute oxidative stress. Sci Rep 2017; 7:11857. [PMID: 28928373 PMCID: PMC5605738 DOI: 10.1038/s41598-017-12072-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 06/07/2017] [Indexed: 12/15/2022] Open
Abstract
Excessive reactive oxygen species (ROS) can damage proteins, lipids, and DNA, which result in cell damage and death. The outcomes can be acute, as seen in stroke, or more chronic as observed in age-related diseases such as Parkinson’s disease. Here we investigate the antioxidant ability of a novel synthetic flavonoid, Proxison (7-decyl-3-hydroxy-2-(3,4,5-trihydroxyphenyl)-4-chromenone), using a range of in vitro and in vivo approaches. We show that, while it has radical scavenging ability on par with other flavonoids in a cell-free system, Proxison is orders of magnitude more potent than natural flavonoids at protecting neural cells against oxidative stress and is capable of rescuing damaged cells. The unique combination of a lipophilic hydrocarbon tail with a modified polyphenolic head group promotes efficient cellular uptake and moderate mitochondrial enrichment of Proxison. Importantly, in vivo administration of Proxison demonstrated effective and well tolerated neuroprotection against cell loss in a zebrafish model of dopaminergic neurodegeneration.
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21
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Park J, Hwang I, Kim SJ, Youn SW, Hur J, Kim HS. Atorvastatin prevents endothelial dysfunction in high glucose condition through Skp2-mediated degradation of FOXO1 and ICAM-1. Biochem Biophys Res Commun 2017; 495:2050-2057. [PMID: 28802579 DOI: 10.1016/j.bbrc.2017.08.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 08/07/2017] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor atorvastatin has been reported to exert vasculo-protective action in diabetes. We investigated the vasculo-protective mechanism of atorvastatin by evaluating its effect on two major pathogenic molecules, FOXO1 and ICAM1, mediated by S-phase kinase-associated protein 2 (Skp2) in diabetic endothelial dysfunction. APPROACH AND RESULTS: [1] FOXO1: Hyperglycemic condition increased FOXO1 protein level in endothelial cells, which was reversed by atorvastatin. This atorvastatin effect was obliterated by treatment of protease inhibitor, suggesting that atorvastatin induces degradation of FOXO1. Immunoprecipitation showed that atorvastatin facilitated the binding of Skp2 to FOXO1, leading to ubiquitination and degradation of FOXO1. [2] ICAM-1: Increased ICAM1 in high glucose condition was reduced by atorvastatin. But this effect of atorvastatin was obliterated when Skp2 was inhibited, suggesting that atorvastatin enhances binding of Skp2 to ICAM1 leading to degradation. Actually, ubiquitination and degradation of ICAM-1 were reduced when Skp2 was inhibited. In vitro monocyte adhesion assay revealed that atorvastatin reduced monocyte adhesion on endothelial cells in high glucose condition, which was reversed by Skp2 knock-down. CONCLUSION Atorvastatin strengthens Skp2 binding to FOXO1 or ICAM1, leading to ubiquitination and degradation. Skp2-dependent ubiquitination of major pathogenic molecules is the key mechanism for statin's protective effect on endothelial function in diabetes.
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Affiliation(s)
- Jonghanne Park
- National Research Laboratory for Stem Cell Niche, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Strategic Center of CBT (Cell & Bio Therapy) for Heart, Diabetes, & Cancer, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Cardiovascular Center & Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Injoo Hwang
- National Research Laboratory for Stem Cell Niche, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Strategic Center of CBT (Cell & Bio Therapy) for Heart, Diabetes, & Cancer, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine or College of Pharmacy, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Sung-Jean Kim
- National Research Laboratory for Stem Cell Niche, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Strategic Center of CBT (Cell & Bio Therapy) for Heart, Diabetes, & Cancer, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Seock-Won Youn
- Department of Pharmacology, University of Illinois-Chicago, Chicago, IL, United States
| | - Jin Hur
- National Research Laboratory for Stem Cell Niche, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Strategic Center of CBT (Cell & Bio Therapy) for Heart, Diabetes, & Cancer, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine or College of Pharmacy, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Hyo-Soo Kim
- National Research Laboratory for Stem Cell Niche, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Strategic Center of CBT (Cell & Bio Therapy) for Heart, Diabetes, & Cancer, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine or College of Pharmacy, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea; Cardiovascular Center & Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea.
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22
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Selective regulation of Notch ligands during angiogenesis is mediated by vimentin. Proc Natl Acad Sci U S A 2017; 114:E4574-E4581. [PMID: 28533359 PMCID: PMC5468602 DOI: 10.1073/pnas.1703057114] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Notch signaling is a key regulator of angiogenesis, in which sprouting is regulated by an equilibrium between inhibitory Dll4-Notch signaling and promoting Jagged-Notch signaling. Whereas Fringe proteins modify Notch receptors and strengthen their activation by Dll4 ligands, other mechanisms balancing Jagged and Dll4 signaling are yet to be described. The intermediate filament protein vimentin, which has been previously shown to affect vascular integrity and regenerative signaling, is here shown to regulate ligand-specific Notch signaling. Vimentin interacts with Jagged, impedes basal recycling endocytosis of ligands, but is required for efficient receptor ligand transendocytosis and Notch activation upon receptor binding. Analyses of Notch signal activation by using chimeric ligands with swapped intracellular domains (ICDs), demonstrated that the Jagged ICD binds to vimentin and contributes to signaling strength. Vimentin also suppresses expression of Fringe proteins, whereas depletion of vimentin enhances Fringe levels to promote Dll4 signaling. In line with these data, the vasculature in vimentin knockout (VimKO) embryos and placental tissue is underdeveloped with reduced branching. Disrupted angiogenesis in aortic rings from VimKO mice and in endothelial 3D sprouting assays can be rescued by reactivating Notch signaling by recombinant Jagged ligands. Taken together, we reveal a function of vimentin and demonstrate that vimentin regulates Notch ligand signaling activities during angiogenesis.
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23
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Rezabakhsh A, Nabat E, Yousefi M, Montazersaheb S, Cheraghi O, Mehdizadeh A, Fathi F, Movassaghpour AA, Maleki-Dizaji N, Rahbarghazi R, Garjani A. Endothelial cells' biophysical, biochemical, and chromosomal aberrancies in high-glucose condition within the diabetic range. Cell Biochem Funct 2017; 35:83-97. [DOI: 10.1002/cbf.3251] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 12/16/2016] [Accepted: 12/24/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Aysa Rezabakhsh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy; Tabriz University of Medical Sciences; Tabriz Iran
- Stem Cell Research Center; Tabriz University of Medical Sciences; Tabriz Iran
| | - Elahe Nabat
- Stem Cell Research Center; Tabriz University of Medical Sciences; Tabriz Iran
- Center of Excellence for Biodiversity, Faculty of Natural Sciences; University of Tabriz; Tabriz Iran
| | - Mina Yousefi
- Department of Cellular and Molecular Biology; Islamic Azad University, Ahar Branch; Ahar Iran
| | - Soheila Montazersaheb
- Stem Cell Research Center; Tabriz University of Medical Sciences; Tabriz Iran
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy; Tabriz University of Medical Sciences; Tabriz Iran
| | - Omid Cheraghi
- Department of Biology, Faculty of Natural Sciences; University of Tabriz; Tabriz Iran
| | - Amir Mehdizadeh
- Liver and Gastrointestinal Diseases Research Center; Tabriz University of Medical Sciences; Tabriz Iran
| | - Farzaneh Fathi
- Research Center for Pharmaceutical Nanotechnology (RCPN); Tabriz University of Medical Sciences; Tabriz Iran
| | | | - Nasrin Maleki-Dizaji
- Drug Applied Research Center; Tabriz University of Medical Sciences; Tabriz Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center; Tabriz University of Medical Sciences; Tabriz Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences; Tabriz University of Medical Sciences; Tabriz Iran
| | - Alireza Garjani
- Department of Pharmacology and Toxicology, Faculty of Pharmacy; Tabriz University of Medical Sciences; Tabriz Iran
- Stem Cell Research Center; Tabriz University of Medical Sciences; Tabriz Iran
- Drug Applied Research Center; Tabriz University of Medical Sciences; Tabriz Iran
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24
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Madonna R, Balistreri CR, Geng YJ, De Caterina R. Diabetic microangiopathy: Pathogenetic insights and novel therapeutic approaches. Vascul Pharmacol 2017; 90:1-7. [PMID: 28137665 DOI: 10.1016/j.vph.2017.01.004] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 01/26/2017] [Indexed: 12/11/2022]
Abstract
Diabetic microangiopathy, including retinopathy, is characterized by abnormal growth and leakage of small blood vessels, resulting in local edema and functional impairment of the depending tissues. Mechanisms leading to the impairment of microcirculation in diabetes are multiple and still largely unclear. However, a dysregulated vascular regeneration appears to play a key role. In addition, oxidative and hyperosmolar stress, as well as the activation of inflammatory pathways triggered by advanced glycation end-products and toll-like receptors, have been recognized as key underlying events. Here, we review recent knowledge on cellular and molecular pathways of microvascular disease in diabetes. We also highlight how new insights into pathogenic mechanisms of vascular damage in diabetes may indicate new targets for prevention and treatment.
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Affiliation(s)
- Rosalinda Madonna
- Center of Excellence on Aging (CesiMet), Institute of Cardiology, Department of Neurosciences, Imaging and Clinical Sciences, "G. d'Annunzio" University, Chieti, Italy; The Texas Heart Institute, Center for Cardiovascular Biology and Atherosclerosis Research, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Carmela Rita Balistreri
- Department of Pathobiology and Medical Biotechnologies, University of Palermo, Palermo, Italy
| | - Yong-Jian Geng
- The Texas Heart Institute, Center for Cardiovascular Biology and Atherosclerosis Research, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Raffaele De Caterina
- Center of Excellence on Aging (CesiMet), Institute of Cardiology, Department of Neurosciences, Imaging and Clinical Sciences, "G. d'Annunzio" University, Chieti, Italy.
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Lee S, Yu LH, Lim LR, Lim HJ, Si JE, Ko YG, Hwang KC. Down regulation of Jag-1 in VSMCs contributes to impaired angiogenesis under high glucose condition: Experimental study using aortic rings of rats. Clin Hemorheol Microcirc 2016; 61:497-511. [PMID: 25536917 DOI: 10.3233/ch-141915] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The major cause of diabetes-related mortality is the complications involving aberrant angiogenesis. To understand the underlying mechanisms of such altered-angiogenesis in diabetes, examining the interaction between endothelial cells (ECs) and neighboring smooth muscle cells (VSMCs) rather than mainly focusing on EC might provide us useful information. Thus, in the present study, we examined the effect of high glucose on the expression of Jag1, one of the key trans-activating ligands of Notch receptors known to be involved in EC-SMC interaction, as well as angiogenic process, in vascular smooth muscle cells (VSMCs) to elucidate possible role of EC-VSMC interaction in diabetes-related angiopathy. Our data indicate that high glucose condition decreases the expression of Jag1 in VSMCs possibly by increasing Jag1-targeting micro RNAs (miRNAs) such as miR-21, and exogenous Jag1-simulating peptides increase proliferation and migration of ECs under high glucose condition in vitro. Ex vivo study using aortic rings from normal and streptozotocin (STZ)-treated diabetic mouse demonstrated that exogenous Jag1-simulating peptides increases EC sprouting of aortic rings from diabetic mouse under high glucose condition. Our data suggest that EC-VSMC interaction is altered under high glucose condition and restoring EC-VSMC interaction can be a feasible therapeutic target for treating diabetes-related angiopathy.
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Affiliation(s)
- Seahyoung Lee
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do, Korea.,Catholic Kwandong University International St. Mary's Hospital, Incheon Metropolitan City, Korea
| | - Long-Hao Yu
- Department of Cardiology, The Fourth Hospital of Harbin Medical University, China
| | - La-Ri Lim
- Severance Integrative Research Institute for Cerebral and Cardiovascular Disease, Yonsei University Health System, Seoul, Korea
| | - Hee-Jung Lim
- Severance Integrative Research Institute for Cerebral and Cardiovascular Disease, Yonsei University Health System, Seoul, Korea
| | - Jung-Eun Si
- Severance Integrative Research Institute for Cerebral and Cardiovascular Disease, Yonsei University Health System, Seoul, Korea
| | - Young-Guk Ko
- Severance Integrative Research Institute for Cerebral and Cardiovascular Disease, Yonsei University Health System, Seoul, Korea.,Division of Cardiology, Yonsei University Health System, Seoul, Korea
| | - Ki-Chul Hwang
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do, Korea.,Catholic Kwandong University International St. Mary's Hospital, Incheon Metropolitan City, Korea
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LaFoya B, Munroe JA, Mia MM, Detweiler MA, Crow JJ, Wood T, Roth S, Sharma B, Albig AR. Notch: A multi-functional integrating system of microenvironmental signals. Dev Biol 2016; 418:227-41. [PMID: 27565024 PMCID: PMC5144577 DOI: 10.1016/j.ydbio.2016.08.023] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/15/2016] [Accepted: 08/19/2016] [Indexed: 12/20/2022]
Abstract
The Notch signaling cascade is an evolutionarily ancient system that allows cells to interact with their microenvironmental neighbors through direct cell-cell interactions, thereby directing a variety of developmental processes. Recent research is discovering that Notch signaling is also responsive to a broad variety of stimuli beyond cell-cell interactions, including: ECM composition, crosstalk with other signaling systems, shear stress, hypoxia, and hyperglycemia. Given this emerging understanding of Notch responsiveness to microenvironmental conditions, it appears that the classical view of Notch as a mechanism enabling cell-cell interactions, is only a part of a broader function to integrate microenvironmental cues. In this review, we summarize and discuss published data supporting the idea that the full function of Notch signaling is to serve as an integrator of microenvironmental signals thus allowing cells to sense and respond to a multitude of conditions around them.
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Affiliation(s)
- Bryce LaFoya
- Biomolecular Sciences PhD Program, Boise State University, Boise, ID 83725, USA
| | - Jordan A Munroe
- Department of Biological Sciences, Boise State University, Boise, ID 83725, USA
| | - Masum M Mia
- Department of Biological Sciences, Boise State University, Boise, ID 83725, USA
| | - Michael A Detweiler
- Department of Biological Sciences, Boise State University, Boise, ID 83725, USA
| | - Jacob J Crow
- Biomolecular Sciences PhD Program, Boise State University, Boise, ID 83725, USA
| | - Travis Wood
- Department of Biological Sciences, Boise State University, Boise, ID 83725, USA
| | - Steven Roth
- Department of Biological Sciences, Boise State University, Boise, ID 83725, USA
| | - Bikram Sharma
- Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA
| | - Allan R Albig
- Department of Biological Sciences, Boise State University, Boise, ID 83725, USA; Biomolecular Sciences PhD Program, Boise State University, Boise, ID 83725, USA.
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Yoon CH, Choi YE, Cha YR, Koh SJ, Choi JI, Kim TW, Woo SJ, Park YB, Chae IH, Kim HS. Diabetes-Induced Jagged1 Overexpression in Endothelial Cells Causes Retinal Capillary Regression in a Murine Model of Diabetes Mellitus: Insights Into Diabetic Retinopathy. Circulation 2016; 134:233-47. [PMID: 27407072 DOI: 10.1161/circulationaha.116.014411] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 05/30/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Several mechanisms have been proposed to account for diabetes-induced microvasculopathy (DMV). Although Notch signaling was reported to be affected by glucose metabolism in endothelial cells during developmental angiogenesis, it has not been investigated in vascular remodeling of adult capillaries in relation to diabetes mellitus. METHODS We induced diabetes mellitus in 8-week-old adult mice by intravenously administering streptozotocin. After 6 weeks, we harvested organs, including retina, heart, and skeletal muscle, and evaluated the capillaries with immunofluorescence and confocal microscopy. We modulated endothelial Notch signaling using chemical inhibitors in wild-type mice or transgenic mice, inducing conditional knockout of Jagged1 or Mib1. RESULTS DMV was characterized by capillary remodeling, regression, and decreased density. Notch ligand Jagged1, but not δ-like ligand 4, was markedly increased in endothelial cells of diabetic mice. Using endothelium-specific Jagged1 knockdown mice, we found that blocking Jagged1 prevented DMV even under diabetic conditions. Furthermore, in the inducible endothelium-specific Jagged1 knockdown mice, blocking Jagged1 even at 4 weeks after the establishment of DMV could reverse it, leading to normalization of retinal vasculature. A search for downstream signals revealed that diabetes mellitus decreased the nuclear localization of Notch1 intracellular domain and reduced the expression of VE-cadherin and N-cadherin in endothelial cells. Chemical Notch inhibition phenocopied DMV in normal mice. CONCLUSIONS Our findings indicate that diabetes mellitus induces Jagged1 overexpression and suppresses Notch signaling in endothelial cells, leading to DMV in adult mice. We conclude that dysregulated intercellular Notch signaling may be a novel mechanism of DMV.
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MESH Headings
- Animals
- Apoptosis
- Capillaries/pathology
- Cells, Cultured
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetic Retinopathy/metabolism
- Diabetic Retinopathy/prevention & control
- Dibenzazepines/pharmacology
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Gene Expression Regulation
- Humans
- Jagged-1 Protein/biosynthesis
- Jagged-1 Protein/deficiency
- Jagged-1 Protein/physiology
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/pathology
- Receptor, TIE-2/genetics
- Receptors, Notch/physiology
- Retinal Vessels/pathology
- Signal Transduction
- Ubiquitin-Protein Ligases/deficiency
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Affiliation(s)
- Chang-Hwan Yoon
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.)
| | - Young-Eun Choi
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.)
| | - Young Ryun Cha
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.)
| | - Seok-Jin Koh
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.)
| | - Jae-Il Choi
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.)
| | - Tae-Won Kim
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.)
| | - Se Joon Woo
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.)
| | - Young-Bae Park
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.)
| | - In-Ho Chae
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.).
| | - Hyo-Soo Kim
- From the Cardiovascular Center and Department of Internal Medicine (C.-H.Y., Y.R.C., I.-H.C.) and Department of Ophthalmology (S.J.W.), Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Biomedical Sciences, Seoul National University Graduate School, South Korea (Y.-E.C., J.-i.C., H.-S.K.); Molecular Medicine & Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, South Korea (S.-J.K., T.-W.K., H.-S.K.); and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, South Korea (Y.-B.P., H.-S.K.).
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Wang H, Wang YH, Yang F, Li XF, Tian YY, Ni MM, Zuo LQ, Meng XM, Huang Y. Effect of acid-sensing ion channel 1a on the process of liver fibrosis under hyperglycemia. Biochem Biophys Res Commun 2015; 468:758-65. [PMID: 26562527 DOI: 10.1016/j.bbrc.2015.11.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/04/2015] [Indexed: 01/09/2023]
Abstract
Metabolic syndrome characterized by hyperglycemia contributes to nonalcoholic steatohepatitis-associated liver fibrosis. This study was to investigate the effects of Acid-sensing ion Channel 1a (ASIC1a) on the process of liver fibrosis under hyperglycemia. Results showed that high glucose significantly worsen the pathology of liver fibrosis in vivo. In vitro, high glucose stimulated proliferation, activation and extracellular matrix (ECM) production in HSCs, and enhanced the effect of PDGF-BB on the activation and proliferation of HSCs. These effects could be attenuated by ASIC1a specific inhibitor Psalmotoxin-1(PcTx1) or specific ShRNA for ASIC1a through Notch1/Hes-1 pathways. These data indicate that ASIC1a plays an important role in diabetes complication liver fibrosis.
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Affiliation(s)
- Huan Wang
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China.
| | - Ying-hong Wang
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China
| | - Feng Yang
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China
| | - Xiao-feng Li
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China
| | - Yuan-yao Tian
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China
| | - Ming-ming Ni
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China
| | - Long-quan Zuo
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China
| | - Xiao-Ming Meng
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China
| | - Yan Huang
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Institute for Liver Diseases of Anhui Medical University (AMU), Anhui Medical University, Hefei, 230032, China.
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Zeng C, Xing R, Liu J, Xing F. Role of CSL-dependent and independent Notch signaling pathways in cell apoptosis. Apoptosis 2015; 21:1-12. [DOI: 10.1007/s10495-015-1188-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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30
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Proangiogenic cells enhanced persistent and physiologic neovascularization compared with macrophages. Exp Mol Med 2015; 47:e186. [PMID: 26403262 PMCID: PMC4650932 DOI: 10.1038/emm.2015.60] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 04/20/2015] [Accepted: 05/07/2015] [Indexed: 01/05/2023] Open
Abstract
Proangiogenic cells (PACs) display surface markers and secrete angiogenic factors similar to those used by myelomonocytic cells, but, unlike myelomonocytic cells, PACs enhance neovascularization activity in experimental ischemic diseases. This study was performed to reveal the differential neovascularization activities of PACs compared with those of myelomonocytic cells. We cultured PACs and CD14(+)-derived macrophages (Macs) for 7 days. Most of the surface markers and cytokines in the two cell types were alike; the exceptions were KDR, β8 integrin, interleukin-8 and monocyte chemotactic protein-1. Unlike Macs, PACs significantly enhanced mesenchymal stem cell (MSC) transmigration. PACs and Macs increased neovascularization activity in an in vitro co-culture of human umbilical vein endothelial cells and MSCs and in an in vivo cotransplantation in Matrigel. However, the use of Macs resulted in inappropriately dilated and leaky vessels, whereas the use of PACs did not. We induced critical hindlimb ischemia in nude mice, and then transplanted PACs, Macs or vehicle into the mice. We obtained laser Doppler perfusion images weekly. At 2 weeks, mice treated with PACs showed significantly enhanced perfusion recovery in contrast to those treated with Macs. After day 7, when cells were depleted using a suicidal gene, viral thymidine kinase, to induce apoptosis of the cells in vivo by ganciclovir administration, we found that the improved perfusion was significantly abrogated in the PAC-treated group, whereas perfusion was not changed in the Mac-treated group. PACs caused an increase in healthy new vessels in in vitro and in vivo models of angiogenesis and enhanced long-term functional neovascularization activity in the hindlimb ischemia model, whereas Macs did not. Nevertheless, the angiogenic potential and long-term functional results for a specific cell type should be validated to confirm effectiveness and safety of the cell type for use in therapeutic angiogenesis procedures.
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Pedrosa AR, Trindade A, Fernandes AC, Carvalho C, Gigante J, Tavares AT, Diéguez-Hurtado R, Yagita H, Adams RH, Duarte A. Endothelial Jagged1 antagonizes Dll4 regulation of endothelial branching and promotes vascular maturation downstream of Dll4/Notch1. Arterioscler Thromb Vasc Biol 2015; 35:1134-46. [PMID: 25767274 DOI: 10.1161/atvbaha.114.304741] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 02/27/2015] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Notch signaling controls cardiovascular development and has been associated with several pathological conditions. Among its ligands, Jagged1 and Dll4 were shown to have opposing effects in developmental angiogenesis, but the underlying mechanism and the role of Jagged1/Notch signaling in adult angiogenesis remain incompletely understood. The current study addresses the importance of endothelial Jagged1-mediated Notch signaling in the context of adult physiological angiogenesis and the interactions of Jagged1 and Dll4 on angiogenic response and vascular maturation processes. APPROACH AND RESULTS The role of endothelial Jagged1 in wound healing kinetics and angiogenesis was investigated with endothelial-specific Jag1 gain-of-function and loss-of-function mouse mutants (eJag1OE and eJag1cKO). To study the interactions between the 2 Notch ligands, genetic mouse models were combined with pharmacological inhibition of Dll4 or Jagged1, respectively. Jagged1 overexpression in endothelial cells increased vessel density, maturation, and perfusion, thus accelerating wound healing. The opposite effect was seen in eJag1cKO animals. Interestingly, Dll4 blockade in these animals led to an increase in vascular density but induced a greater decrease in perivascular cell coverage. However, Jagged1 inhibition in Dll4 gain-of-function (eDll4OE) mutants, with reduced angiogenesis, further diminished angiogenic growth and hampered perivascular cell coverage. Our findings suggest that as Dll4 blocks endothelial activation through Notch1 signaling, it also induces Jagged1 expression. Jagged1 then blocks Dll4 signaling through Notch1, allowing endothelial activation by vascular endothelial growth factor and endothelial layer growth. Jagged1 also initiates maturation of the newly formed vessels, possibly by binding and activating endothelial Notch4. Importantly, mice administered with a Notch4 agonistic antibody mimicked the mural cell phenotype of eJag1OE mutants without affecting angiogenic growth, which is thought to be Notch1 dependent. CONCLUSIONS Endothelial Jagged1 is likely to operate downstream of Dll4/Notch1 signaling to activate Notch4 and regulate vascular maturation. Thus, Jagged1 not only counteracts Dll4/Notch in the endothelium but also generates a balance between angiogenic growth and maturation processes in vivo.
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Affiliation(s)
- Ana-Rita Pedrosa
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.)
| | - Alexandre Trindade
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.).
| | - Ana-Carina Fernandes
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.)
| | - Catarina Carvalho
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.)
| | - Joana Gigante
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.)
| | - Ana Teresa Tavares
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.)
| | - Rodrigo Diéguez-Hurtado
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.)
| | - Hideo Yagita
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.)
| | - Ralf H Adams
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.)
| | - António Duarte
- From the Centro Interdisciplinar de Investigação em Sanidade Animal (CIISA), University of Lisbon, Lisbon, Portugal (A.-R.P., A.T., A.-C.F., C.C., J.G., A.T.T., A.D.); Instituto Gulbenkian de Ciência, Oeiras, Portugal (A.T., A.T.T., A.D.); Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Department of Tissue Morphogenesis, and University of Muenster, Faculty of Medicine, Muenster, Germany (R.D.-H., R.H.A.); and Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan (H.Y.).
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Jagged-Delta asymmetry in Notch signaling can give rise to a Sender/Receiver hybrid phenotype. Proc Natl Acad Sci U S A 2015; 112:E402-9. [PMID: 25605936 DOI: 10.1073/pnas.1416287112] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Notch signaling pathway mediates cell-fate determination during embryonic development, wound healing, and tumorigenesis. This pathway is activated when the ligand Delta or the ligand Jagged of one cell interacts with the Notch receptor of its neighboring cell, releasing the Notch Intracellular Domain (NICD) that activates many downstream target genes. NICD affects ligand production asymmetrically--it represses Delta, but activates Jagged. Although the dynamical role of Notch-Jagged signaling remains elusive, it is widely recognized that Notch-Delta signaling behaves as an intercellular toggle switch, giving rise to two distinct fates that neighboring cells adopt--Sender (high ligand, low receptor) and Receiver (low ligand, high receptor). Here, we devise a specific theoretical framework that incorporates both Delta and Jagged in Notch signaling circuit to explore the functional role of Jagged in cell-fate determination. We find that the asymmetric effect of NICD renders the circuit to behave as a three-way switch, giving rise to an additional state--a hybrid Sender/Receiver (medium ligand, medium receptor). This phenotype allows neighboring cells to both send and receive signals, thereby attaining similar fates. We also show that due to the asymmetric effect of the glycosyltransferase Fringe, different outcomes are generated depending on which ligand is dominant: Delta-mediated signaling drives neighboring cells to have an opposite fate; Jagged-mediated signaling drives the cell to maintain a similar fate to that of its neighbor. We elucidate the role of Jagged in cell-fate determination and discuss its possible implications in understanding tumor-stroma cross-talk, which frequently entails Notch-Jagged communication.
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