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Theocharopoulos C, Ziogas IA, Douligeris CC, Efstathiou A, Kolorizos E, Ziogas DC, Kontis E. Antibody-drug conjugates for hepato-pancreato-biliary malignancies: "Magic bullets" to the rescue? Cancer Treat Rev 2024; 129:102806. [PMID: 39094332 DOI: 10.1016/j.ctrv.2024.102806] [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: 05/19/2024] [Revised: 07/17/2024] [Accepted: 07/28/2024] [Indexed: 08/04/2024]
Abstract
Hepato-Pancreato-Biliary (HPB) malignancies constitute a highly aggressive group of cancers that have a dismal prognosis. Patients not amenable to curative intent surgical resection are managed with systemic chemotherapy which, however, confers little survival benefit. Antibody-Drug Conjugates (ADCs) are tripartite compounds that merge the intricate selectivity and specificity of monoclonal antibodies with the cytodestructive potency of attached supertoxic payloads. In view of the unmet need for drugs that will enhance the survival rates of HPB cancer patients, the assessment of ADCs for treating HPB malignancies has become the focus of extensive clinical and preclinical investigation, showing encouraging preliminary results. In the current review, we offer a comprehensive overview of the growing body of evidence on ADC approaches tested for HPB malignancies. Starting from a concise discussion of the functional principles of ADCs, we summarize here all available data from preclinical and clinical studies evaluating ADCs in HPB cancers.
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Affiliation(s)
| | - Ioannis A Ziogas
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
| | | | | | | | - Dimitrios C Ziogas
- First Department of Internal Medicine, Laikon General Hospital, School of Medicine, National Kapodistrian University of Athens, Athens 11527, Greece
| | - Elissaios Kontis
- Department of Surgery, Metaxa Cancer Hospital, Piraeus 18537, Greece
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2
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Xu HB, Xu YH, He Y, Lin XH, Suo Z, Shu H, Zhang H. Association between admission pan-immune-inflammation value and short-term mortality in septic patients: a retrospective cohort study. Sci Rep 2024; 14:15205. [PMID: 38956306 PMCID: PMC11219806 DOI: 10.1038/s41598-024-66142-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 06/27/2024] [Indexed: 07/04/2024] Open
Abstract
Pan-Immune-Inflammation Value (PIV) has recently received more attention as a novel indicator of inflammation. We aimed to evaluate the association between PIV and prognosis in septic patients. Data were extracted from the Medical Information Mart for Intensive Care IV database. The primary and secondary outcomes were 28-day and 90-day mortality. The association between PIV and outcomes was assessed by Kaplan-Meier curves, Cox regression analysis, restricted cubic spline curves and subgroup analysis. A total of 11,331 septic patients were included. Kaplan-Meier curves showed that septic patients with higher PIV had lower 28-day survival rate. In multivariable Cox regression analysis, log2-PIV was positively associated with the risk of 28-day mortality [HR (95% CI) 1.06 (1.03, 1.09), P < 0.001]. The relationship between log2-PIV and 28-day mortality was non-linear with a predicted inflection point at 8. To the right of the inflection point, high log2-PIV was associated with an increased 28-day mortality risk [HR (95% CI) 1.13 (1.09, 1.18), P < 0.001]. However, to the left of this point, this association was non-significant [HR (95% CI) 1.01 (0.94, 1.08), P = 0.791]. Similar results were found for 90-day mortality. Our study showed a non-linear relationship between PIV and 28-day and 90-day mortality risk in septic patients.
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Affiliation(s)
- Hong-Bo Xu
- Department of Critical Care Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital/The 6th Affiliated Hospital of Shenzhen University Health Science Center, 89 Taoyuan Road, Shenzhen, 518052, China
| | - Yu-Hong Xu
- Department of Pharmacy, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518033, China
| | - Ying He
- Department of Laboratory Medicine, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518033, China
| | - Xiao-Hua Lin
- Department of Critical Care Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital/The 6th Affiliated Hospital of Shenzhen University Health Science Center, 89 Taoyuan Road, Shenzhen, 518052, China
| | - Zhijun Suo
- Department of Critical Care Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital/The 6th Affiliated Hospital of Shenzhen University Health Science Center, 89 Taoyuan Road, Shenzhen, 518052, China
| | - Huaqing Shu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277, Jiefang Avenue, Wuhan, 430022, China.
| | - Haigang Zhang
- Department of Critical Care Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital/The 6th Affiliated Hospital of Shenzhen University Health Science Center, 89 Taoyuan Road, Shenzhen, 518052, China.
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3
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Patel AS, Ludwinski FE, Kerr A, Farkas S, Kapoor P, Bertolaccini L, Fernandes R, Jones PR, McLornan D, Livieratos L, Saha P, Smith A, Modarai B. A subpopulation of tissue remodeling monocytes stimulates revascularization of the ischemic limb. Sci Transl Med 2024; 16:eadf0555. [PMID: 38896604 DOI: 10.1126/scitranslmed.adf0555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 05/30/2024] [Indexed: 06/21/2024]
Abstract
Despite decades of effort aimed at developing clinically effective cell therapies, including mixed population mononuclear cells, to revascularize the ischemic limb, there remains a paucity of patient-based studies that inform the function and fate of candidate cell types. In this study, we showed that circulating proangiogenic/arteriogenic monocytes (PAMs) expressing the FcγIIIA receptor CD16 were elevated in patients with chronic limb-threatening ischemia (CLTI), and these amounts decreased after revascularization. Unlike CD16-negative monocytes, PAMs showed large vessel remodeling properties in vitro when cultured with endothelial cells and smooth muscle cells and promoted salvage of the ischemic limb in vivo in a mouse model of hindlimb ischemia. PAMs showed a propensity to migrate toward and bind to ischemic muscle and to secrete angiogenic/arteriogenic factors, vascular endothelial growth factor A (VEGF-A) and heparin-binding epidermal growth factor. We instigated a first-in-human single-arm cohort study in which autologous PAMs were injected into the ischemic limbs of five patients with CLTI. Greater than 25% of injected cells were retained in the leg for at least 72 hours, of which greater than 80% were viable, with evidence of enhanced large vessel remodeling in the injected muscle area. In summary, we identified up-regulation of a circulatory PAM subpopulation as an endogenous response to limb ischemia in CLTI and tested a potentially clinically relevant therapeutic strategy.
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Affiliation(s)
- Ashish S Patel
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Francesca E Ludwinski
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Alexander Kerr
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Simon Farkas
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Puja Kapoor
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Laura Bertolaccini
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Ramon Fernandes
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Paul R Jones
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Donal McLornan
- Department of Haematology, Guy's & St Thomas' NHS Foundation Trust, London SE1 7EH, UK
| | - Lefteris Livieratos
- Department of Biomedical Engineering, School of Biomedical Engineering & Imaging Sciences, King's College London, London SE1 7EH, UK
- Department of Nuclear Medicine, Guy's & St Thomas' NHS Foundation Trust, London SE1 7EH, UK
| | - Prakash Saha
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Alberto Smith
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
| | - Bijan Modarai
- Academic Department of Vascular Surgery, South Bank Section, School of Cardiovascular and Metabolic Medicine & Sciences, BHF Centre of Excellence, King's College London, London SE1 7EH, UK
- Biomedical Research Centre at Guy's & St Thomas' NHS Foundation Trust and King's College London, London SE1 7EH, UK
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4
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Pokorná M, Kútna V, Ovsepian SV, Matěj R, Černá M, O’Leary VB. Biomolecules to Biomarkers? U87MG Marker Evaluation on the Path towards Glioblastoma Multiforme Pathogenesis. Pharmaceutics 2024; 16:123. [PMID: 38258133 PMCID: PMC10818292 DOI: 10.3390/pharmaceutics16010123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
The heterogeneity of the glioma subtype glioblastoma multiforme (GBM) challenges effective neuropathological treatment. The reliance on in vitro studies and xenografted animal models to simulate human GBM has proven ineffective. Currently, a dearth of knowledge exists regarding the applicability of cell line biomolecules to the realm of GBM pathogenesis. Our study's objectives were to address this preclinical issue and assess prominin-1, ICAM-1, PARTICLE and GAS5 as potential GBM diagnostic targets. The methodologies included haemoxylin and eosin staining, immunofluorescence, in situ hybridization and quantitative PCR. The findings identified that morphology correlates with malignancy in GBM patient pathology. Immunofluorescence confocal microscopy revealed prominin-1 in pseudo-palisades adjacent to necrotic foci in both animal and human GBM. Evidence is presented for an ICAM-1 association with degenerating vasculature. Significantly elevated nuclear PARTICLE expression from in situ hybridization and quantitative PCR reflected its role as a tumor activator. GAS5 identified within necrotic GBM validated this potential prognostic biomolecule with extended survival. Here we present evidence for the stem cell marker prominin-1 and the chemotherapeutic target ICAM-1 in a glioma animal model and GBM pathology sections from patients that elicited alternative responses to adjuvant chemotherapy. This foremost study introduces the long non-coding RNA PARTICLE into the context of human GBM pathogenesis while substantiating the role of GAS5 as a tumor suppressor. The validation of GBM biomarkers from cellular models contributes to the advancement towards superior detection, therapeutic responders and the ultimate attainment of promising prognoses for this currently incurable brain cancer.
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Affiliation(s)
- Markéta Pokorná
- Department of Medical Genetics, Third Faculty of Medicine, Charles University, Ruská 87, Vinohrady, 10000 Prague, Czech Republic; (M.P.); (M.Č.)
| | - Viera Kútna
- Department of Experimental Neurobiology, National Institute of Mental Health, Topolová 748, 25067 Klecany, Czech Republic;
| | - Saak V. Ovsepian
- Faculty of Engineering and Science, University of Greenwich London, Chatham Maritime, Kent ME4 4TB, UK;
| | - Radoslav Matěj
- Department of Pathology, Third Faculty of Medicine, Charles University, Ruská 87, Vinohrady, 10000 Prague, Czech Republic;
- Department of Pathology, University Hospital Královské Vinohrady, Šrobárova 50, Vinohrady, 10000 Prague, Czech Republic
| | - Marie Černá
- Department of Medical Genetics, Third Faculty of Medicine, Charles University, Ruská 87, Vinohrady, 10000 Prague, Czech Republic; (M.P.); (M.Č.)
| | - Valerie Bríd O’Leary
- Department of Medical Genetics, Third Faculty of Medicine, Charles University, Ruská 87, Vinohrady, 10000 Prague, Czech Republic; (M.P.); (M.Č.)
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5
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Zeng J, Gao W, Tang Y, Wang Y, Liu X, Yin J, Su X, Zhang M, Kang E, Tian Y, Ni B, He W. Hypoxia-sensitive cells trigger NK cell activation via the KLF4-ASH1L-ICAM-1 axis, contributing to impairment in the rat epididymis. Cell Rep 2023; 42:113442. [PMID: 37952156 DOI: 10.1016/j.celrep.2023.113442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 08/31/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023] Open
Abstract
Male infertility is a global health problem especially prevalent in high-altitude regions. The epididymis is essential for sperm maturation, but the influence of environmental cues on its reshaping remains poorly understood. Here, we use single-cell transcriptomics to track the cellular profiles of epidydimal cells in rats raised under normoxia or extended hypoxia. The results show that hypoxia impairs epididymal function, evident in reduced epithelial cells, compromised blood-epididymis barrier integrity, and increased natural killer cells. Through combined analysis of gene-regulatory networks and cell-cell interaction maps, we identify epididymal hypoxia-sensitive cells that communicate with natural killer (NK) cells via increased intercellular adhesion molecule 1 (ICAM-1) driven by KLF4 recruitment of the histone methyltransferase ASL1L to the Icam1 promoter. Taken together, our study offers a detailed blueprint of epididymal changes during hypoxia and defines a KLF4-ALSH1L-ICAM-1 axis contributing to NK cell activation, yielding a potential treatment targeting hypoxia-induced infertility.
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Affiliation(s)
- Jitao Zeng
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Weiwu Gao
- Institute of Immunology, People's Liberation Army (PLA), and Department of Immunology, College of Basic Medicine, Army Medical University, Chongqing, China
| | - Ying Tang
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Ying Wang
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Xiaona Liu
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Jun Yin
- Department of Pathophysiology, College of High-Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Xingxing Su
- Hepatological Surgery Department, Southwest Hospital, Army Medical University, Chongqing, China
| | - Mengjie Zhang
- Department of Pathophysiology, College of High-Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Enchuan Kang
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Yi Tian
- Institute of Immunology, People's Liberation Army (PLA), and Department of Immunology, College of Basic Medicine, Army Medical University, Chongqing, China
| | - Bing Ni
- Department of Pathophysiology, College of High-Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Wei He
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China.
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6
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Wang H, Xu X, Wang Y, Xue X, Guo W, Guo S, Qiu S, Cui J, Qiao Y. NMT1 sustains ICAM-1 to modulate adhesion and migration of tumor cells. Cell Signal 2023:110739. [PMID: 37269961 DOI: 10.1016/j.cellsig.2023.110739] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/17/2023] [Accepted: 05/27/2023] [Indexed: 06/05/2023]
Abstract
Protein modifications have significant effects on tumorigenesis. N-Myristoylation is one of the most important lipidation modifications, and N-myristoyltransferase 1 (NMT1) is the main enzyme required for this process. However, the mechanism underlying how NMT1 modulates tumorigenesis remains largely unclear. Here, we found that NMT1 sustains cell adhesion and suppresses tumor cell migration. Intracellular adhesion molecule 1 (ICAM-1) was a potential functional downstream effector of NMT1, and its N-terminus could be N-myristoylated. NMT1 prevented ubiquitination and proteasome degradation of ICAM-1 by inhibiting Ub E3 ligase F-box protein 4, which prolonged the half-life of ICAM1 protein. Correlations between NMT1 and ICAM-1 were observed in liver and lung cancers, which were associated with metastasis and overall survival. Therefore, carefully designed strategies focusing on NMT1 and its downstream effectors might be helpful to treat tumors.
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Affiliation(s)
- Hong Wang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xin Xu
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 200030, China
| | - Yikun Wang
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 200030, China
| | - Xiangfei Xue
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 200030, China
| | - Wanxin Guo
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 200030, China
| | - Susu Guo
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 200030, China
| | - Shiyu Qiu
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 200030, China
| | - Jiangtao Cui
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 200030, China
| | - Yongxia Qiao
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China.
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7
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Man Y, Kucukal E, Liu S, An R, Goreke U, Wulftange WJ, Sekyonda Z, Bode A, Little JA, Manwani D, Stavrou EX, Gurkan UA. A microfluidic device for assessment of E-selectin-mediated neutrophil recruitment to inflamed endothelium and prediction of therapeutic response in sickle cell disease. Biosens Bioelectron 2023; 222:114921. [PMID: 36521205 PMCID: PMC9850363 DOI: 10.1016/j.bios.2022.114921] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 11/25/2022]
Abstract
Neutrophil recruitment to the inflamed endothelium is a multistep process and is of utmost importance in the development of the hallmark vaso-occlusive crisis in sickle cell disease (SCD). However, there lacks a standardized, clinically feasible approach for assessing neutrophil recruitment to the inflamed endothelium for individualized risk stratification and therapeutic response prediction in SCD. Here, we describe a microfluidic device functionalized with E-selectin, a critical endothelial receptor for the neutrophil recruitment process, as a strategy to assess neutrophil binding under physiologic flow in normoxia and clinically relevant hypoxia in SCD. We show that hypoxia significantly enhances neutrophil binding to E-selectin and promotes the formation of neutrophil-platelet aggregates. Moreover, we identified two distinct patient populations: a more severe clinical phenotype with elevated lactate dehydrogenase levels and absolute reticulocyte counts but lowered fetal hemoglobin levels associated with constitutively less neutrophil binding to E-selectin. Mechanistically, we demonstrate that the extent of neutrophil activation correlates with membrane L-selectin shedding, resulting in the loss of ligand interaction sites with E-selectin. We also show that inhibition of E-selectin significantly reduces leukocyte recruitment to activated endothelial cells. Our findings add mechanistic insight into neutrophil-endothelial interactions under hypoxia and provide a clinically feasible means for assessing neutrophil binding to E-selectin using clinical whole blood samples, which can help guide therapeutic decisions for SCD patients.
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Affiliation(s)
- Yuncheng Man
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Erdem Kucukal
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Shichen Liu
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Ran An
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Utku Goreke
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - William J Wulftange
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Zoe Sekyonda
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Allison Bode
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA; Department of Medicine, Hematology and Oncology Division, CWRU School of Medicine, Cleveland, OH, USA
| | - Jane A Little
- Department of Hematology, UNC Blood Research Center, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Deepa Manwani
- Department of Pediatrics, Albert Einstein College of Medicine/Children's Hospital at Montefiore, Bronx, NY, USA
| | - Evi X Stavrou
- Department of Medicine, Hematology and Oncology Division, CWRU School of Medicine, Cleveland, OH, USA; Medicine Service, Section of Hematology-Oncology, Louis Stokes Cleveland Veterans Administration Medical Center, Cleveland, OH, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
| | - Umut A Gurkan
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA; Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA.
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8
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Winning S, Fandrey J. Oxygen Sensing in Innate Immune Cells: How Inflammation Broadens Classical Hypoxia-Inducible Factor Regulation in Myeloid Cells. Antioxid Redox Signal 2022; 37:956-971. [PMID: 35088604 DOI: 10.1089/ars.2022.0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Significance: Oxygen deprivation (hypoxia) is a common feature at sites of inflammation. Immune cells and all other cells present at the inflamed site have to adapt to these conditions. They do so by stabilization and activation of hypoxia-inducible factor subunit α (HIF-1α and HIF-2α, respectively), enabling constant generation of adenosine triphosphate (ATP) under these austere conditions by the induction of, for example, glycolytic pathways. Recent Advances: During recent years, it has become evident that HIFs play a far more important role than initially believed because they shape the inflammatory phenotype of immune cells. They are indispensable for migration, phagocytosis, and the induction of inflammatory cytokines by innate immune cells and thereby enable a crosstalk between innate and adaptive immunity. In short, they ensure the survival and function of immune cells under critical conditions. Critical Issues: Up to now, there are still open questions regarding the individual roles of HIF-1 and HIF-2 for the different cell types. In particular, the loss of both HIF-1 and HIF-2 in myeloid cells led to unexpected and contradictory results in the mouse models analyzed so far. Similarly, the role of HIF-1 in dendritic cell maturation is unclear due to inconsistent results from in vitro experiments. Future Directions: The HIFs are indispensable for immune cell survival and action under inflammatory conditions, but they might also trigger over-activation of immune cells. Therefore, they might be excellent setscrews to adjust the inflammatory response by pharmaceuticals. China and Japan and very recently (August 2021) Europe have approved prolyl hydroxylase inhibitors (PHIs) to stabilize HIF such as roxadustat for clinical use to treat anemia by increasing the production of erythropoietin, the classical HIF target gene. Nonetheless, we need further work regarding the use of PHIs under inflammatory conditions, because HIFs show specific activation and distinct expression patterns in innate immune cells. The extent to which HIF-1 or HIF-2 as a transcription factor regulates the adaptation of immune cells to inflammatory hypoxia differs not only by the cell type but also with the inflammatory challenge and the surrounding tissue. Therefore, we urgently need isoform- and cell type-specific modulators of the HIF pathway. Antioxid. Redox Signal. 37, 956-971.
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Affiliation(s)
- Sandra Winning
- Institut für Physiologie, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Joachim Fandrey
- Institut für Physiologie, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
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9
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Yang C, Zhang X, Ge X, He C, Liu S, Yang S, Huang C. N-Acetylcysteine protects against cobalt chloride-induced endothelial dysfunction by enhancing glucose-6-phosphate dehydrogenase activity. FEBS Open Bio 2022; 12:1475-1488. [PMID: 35666067 PMCID: PMC9340863 DOI: 10.1002/2211-5463.13449] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/05/2022] [Accepted: 06/03/2022] [Indexed: 11/07/2022] Open
Abstract
Hypoxia‐induced endothelial dysfunction is known to be involved in the pathogenesis of several vascular diseases. However, it remains unclear whether the pentose phosphate pathway (PPP) is involved in regulating the response of endothelial cells to hypoxia. Here, we established an in vitro model by treating EA.hy926 (a hybrid human umbilical vein cell line) with cobalt chloride (CoCl2; a chemical mimic that stabilizes HIF‐1α, thereby leading to the development of hypoxia), and used this to investigate the involvement of PPP by examining expression of its key enzyme, glucose‐6‐phosphate dehydrogenase (G6PD). We report that CoCl2 induces the accumulation of HIF‐1α, leading to endothelial cell dysfunction characterized by reduced cell viability, proliferation, tube formation, and activation of cytokine production, accompanied with a significant decrease in G6PD expression and activity. The addition of 6‐aminonicotinamide (6‐AN) to inhibit PPP directly causes endothelial dysfunction. Additionally, N‐Acetylcysteine (NAC), a precursor of glutathione, was further evaluated for its protective effects; NAC displayed a protective effect against CoCl2‐induced cell damage by enhancing G6PD activity, and this was abrogated by 6‐AN. The effects of CoCl2 and the involvement of G6PD in endothelial dysfunction have been confirmed in primary human aortic endothelial cells. In summary, G6PD was identified as a novel target of CoCl2‐induced damage, which highlighted the involvement of PPP in regulating the response of endothelial cell CoCl2. Treatment with NAC may be a potential strategy to treat hypoxia or ischemia, which are widely observed in vascular diseases.
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Affiliation(s)
- Chen Yang
- Department of Endocrinology and Diabetes, Xiamen Diabetes Institute, Fujian Key Laboratory of Translational Research for Diabetes, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China.,Department of Geriatrics, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Xiaofang Zhang
- Department of Endocrinology and Diabetes, Xiamen Diabetes Institute, Fujian Key Laboratory of Translational Research for Diabetes, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Xilin Ge
- Department of Endocrinology and Diabetes, Xiamen Diabetes Institute, Fujian Key Laboratory of Translational Research for Diabetes, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Chunmei He
- Department of Endocrinology and Diabetes, Xiamen Diabetes Institute, Fujian Key Laboratory of Translational Research for Diabetes, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Suhuan Liu
- Department of Endocrinology and Diabetes, Xiamen Diabetes Institute, Fujian Key Laboratory of Translational Research for Diabetes, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China.,Research Center for Translational Medicine, the First Affiliated Hospital of Xiamen University, Xiamen, 361003, China
| | - Shuyu Yang
- Department of Endocrinology and Diabetes, Xiamen Diabetes Institute, Fujian Key Laboratory of Translational Research for Diabetes, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China.,Traditional Chinese Medicine research studio, the First Affiliated Hospital of Xiamen University, Xiamen, 361003, China
| | - Caoxin Huang
- Department of Endocrinology and Diabetes, Xiamen Diabetes Institute, Fujian Key Laboratory of Translational Research for Diabetes, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China
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10
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Cao J, Shen Y, Yang Z, Pan B, Liu Z. Unique hypoxia-tolerant subpopulations of adipose-derived stem cells: ITGB3 + cells. J Plast Reconstr Aesthet Surg 2022; 75:3586-3594. [PMID: 35643597 DOI: 10.1016/j.bjps.2022.04.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/26/2022] [Accepted: 04/12/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND We found by accident that stem cells could still be isolated from adipose tissue stored for 14 days in sealed tubes, which was distinct from previous protocols. The morphology of these hypoxia-tolerant stem cells also differs from that of conventional adipose-derived stem cells (ADSCs). In this study, we aim to define the newly found subsets. MATERIALS AND METHODS Stem cells were isolated from adipose tissue that was aspirated immediately or stored for 14 days. The stem cells were then harvested for flowcytometric analysis and differentiation potentials. The expression of hypoxia-inducible factor 1 alpha (HIF-1α) was assayed to confirm the hypoxia-tolerant ability. RNA sequencing (RNA-seq) was performed to find the common signatures of the hypoxia-tolerant cells. The result of bioinformatics was tested by quantitative real-time reverse transcription-polymerase chain reaction (qPCR) and western blotting. RESULTS Certain subsets of ADSCs can be isolated from adipose tissue stored for 14 days. These survived cells were positive for CD90, CD105, and CD73 and showed multilineage differentiation potentials. The hypoxic condition was evidenced by up-regulation of HIF-1α for 2.0-fold changes (p < 0.05). The hypoxia-tolerant stem cells were distinct from multilineage-differentiating stress-enduring (Muse) cells, previously found stress-enduring stromal cells. RNA-seq suggested that integrin beta 3 (ITGB3) was highly expressed in hypoxia-tolerant subpopulations. The result was further confirmed at transcription and translation levels by qPCR and western blotting (mRNA: 2.9 ± 0.4, p < 0.05; protein: 1.5 ± 0.2, p < 0.05; respectively). The conventional ADSCs are positive for ITGB3, which implies that ITGB3+ cells are subpopulations of heterogeneous ADSCs. CONCLUSIONS Our study reveals the ITGB3+ subsets with potent hypoxia tolerance, which has significant implications for improving fat retention rates and curing obesity-related diseases.
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Affiliation(s)
- Jiankun Cao
- Department of Burns and Plastic Surgery, Beijing Jishuitan Hospital, Forth Medical College of Peking University, Beijing, China; Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuming Shen
- Department of Burns and Plastic Surgery, Beijing Jishuitan Hospital, Forth Medical College of Peking University, Beijing, China
| | - Zhigang Yang
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bo Pan
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Zhenzhong Liu
- Department of Burns and Plastic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China.
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11
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He G, Peng X, Wei S, Yang S, Li X, Huang M, Tang S, Jin H, Liu J, Zhang S, Zheng H, Fan Q, Liu J, Yang L, Li H. Exosomes in the hypoxic TME: from release, uptake and biofunctions to clinical applications. Mol Cancer 2022; 21:19. [PMID: 35039054 PMCID: PMC8762953 DOI: 10.1186/s12943-021-01440-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 10/02/2021] [Indexed: 02/06/2023] Open
Abstract
Hypoxia is a remarkable trait of the tumor microenvironment (TME). When facing selective pressure, tumor cells show various adaptive characteristics, such as changes in the expression of cancer hallmarks (increased proliferation, suppressed apoptosis, immune evasion, and so on) and more frequent cell communication. Because of the adaptation of cancer cells to hypoxia, exploring the association between cell communication mediators and hypoxia has become increasingly important. Exosomes are important information carriers in cell-to-cell communication. Abundant evidence has proven that hypoxia effects in the TME are mediated by exosomes, with the occasional formation of feedback loops. In this review, we equally focus on the biogenesis and heterogeneity of cancer-derived exosomes and their functions under hypoxia and describe the known and potential mechanism ascribed to exosomes and hypoxia. Notably, we call attention to the size change of hypoxic cancer cell-derived exosomes, a characteristic long neglected, and propose some possible effects of this size change. Finally, jointly considering recent developments in the understanding of exosomes and tumors, we describe noteworthy problems in this field that urgently need to be solved for better research and clinical application.
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Affiliation(s)
- Guangpeng He
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Xueqiang Peng
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Shibo Wei
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Shuo Yang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Xinyu Li
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Mingyao Huang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Shilei Tang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Hongyuan Jin
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Jiaxing Liu
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Sheng Zhang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Hongyu Zheng
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Qing Fan
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Jingang Liu
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China
| | - Liang Yang
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China.
| | - Hangyu Li
- Department of General Surgery, The Fourth Affiliated Hospital, China Medical University, Shenyang, 110032, China.
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12
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Gusev E, Sarapultsev A, Hu D, Chereshnev V. Problems of Pathogenesis and Pathogenetic Therapy of COVID-19 from the Perspective of the General Theory of Pathological Systems (General Pathological Processes). Int J Mol Sci 2021; 22:7582. [PMID: 34299201 PMCID: PMC8304657 DOI: 10.3390/ijms22147582] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/30/2021] [Accepted: 07/12/2021] [Indexed: 01/18/2023] Open
Abstract
The COVID-19 pandemic examines not only the state of actual health care but also the state of fundamental medicine in various countries. Pro-inflammatory processes extend far beyond the classical concepts of inflammation. They manifest themselves in a variety of ways, beginning with extreme physiology, then allostasis at low-grade inflammation, and finally the shockogenic phenomenon of "inflammatory systemic microcirculation". The pathogenetic core of critical situations, including COVID-19, is this phenomenon. Microcirculatory abnormalities, on the other hand, lie at the heart of a specific type of general pathological process known as systemic inflammation (SI). Systemic inflammatory response, cytokine release, cytokine storm, and thrombo-inflammatory syndrome are all terms that refer to different aspects of SI. As a result, the metabolic syndrome model does not adequately reflect the pathophysiology of persistent low-grade systemic inflammation (ChSLGI). Diseases associated with ChSLGI, on the other hand, are risk factors for a severe COVID-19 course. The review examines the role of hypoxia, metabolic dysfunction, scavenger receptors, and pattern-recognition receptors, as well as the processes of the hemophagocytic syndrome, in the systemic alteration and development of SI in COVID-19.
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Affiliation(s)
- Evgenii Gusev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia; (E.G.); (V.C.)
| | - Alexey Sarapultsev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia; (E.G.); (V.C.)
- School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia
| | - Desheng Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 200092, China;
| | - Valeriy Chereshnev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia; (E.G.); (V.C.)
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13
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van Kuijk K, Demandt JAF, Perales-Patón J, Theelen TL, Kuppe C, Marsch E, de Bruijn J, Jin H, Gijbels MJ, Matic L, Mees BME, Reutelingsperger CPM, Hedin U, Biessen EAL, Carmeliet P, Baker AH, Kramann RK, Schurgers LJ, Saez-Rodriguez J, Sluimer JC. DEFICIENCY OF MYELOID PHD PROTEINS AGGRAVATES ATHEROGENESIS VIA MACROPHAGE APOPTOSIS AND PARACRINE FIBROTIC SIGNALING: Atherogenic effects of myeloid PHD knockdown. Cardiovasc Res 2021; 118:1232-1246. [PMID: 33913468 PMCID: PMC8953448 DOI: 10.1093/cvr/cvab152] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/23/2021] [Indexed: 01/10/2023] Open
Abstract
Aims Atherosclerotic plaque hypoxia is detrimental for macrophage function. Prolyl hydroxylases (PHDs) initiate cellular hypoxic responses, possibly influencing macrophage function in plaque hypoxia. Thus, we aimed to elucidate the role of myeloid PHDs in atherosclerosis. Methods and results Myeloid-specific PHD knockout (PHDko) mice were obtained via bone marrow transplantation (PHD1ko, PHD3ko) or conditional knockdown through lysozyme M-driven Cre recombinase (PHD2cko). Mice were fed high cholesterol diet for 6–12 weeks to induce atherosclerosis. Aortic root plaque size was significantly augmented 2.6-fold in PHD2cko, and 1.4-fold in PHD3ko compared to controls but was unchanged in PHD1ko mice. Macrophage apoptosis was promoted in PHD2cko and PHD3ko mice in vitro and in vivo, via the hypoxia-inducible factor (HIF) 1α/BNIP3 axis. Bulk and single-cell RNA data of PHD2cko bone marrow-derived macrophages (BMDMs) and plaque macrophages, respectively, showed enhanced HIF1α/BNIP3 signalling, which was validated in vitro by siRNA silencing. Human plaque BNIP3 mRNA was positively associated with plaque necrotic core size, suggesting similar pro-apoptotic effects in human. Furthermore, PHD2cko plaques displayed enhanced fibrosis, while macrophage collagen breakdown by matrix metalloproteinases, collagen production, and proliferation were unaltered. Instead, PHD2cko BMDMs enhanced fibroblast collagen secretion in a paracrine manner. In silico analysis of macrophage-fibroblast communication predicted SPP1 (osteopontin) signalling as regulator, which was corroborated by enhanced plaque SPP1 protein in vivo. Increased SPP1 mRNA expression upon PHD2cko was preferentially observed in foamy plaque macrophages expressing ‘triggering receptor expressed on myeloid cells-2’ (TREM2hi) evidenced by single-cell RNA, but not in neutrophils. This confirmed enhanced fibrotic signalling by PHD2cko macrophages to fibroblasts, in vitro as well as in vivo. Conclusion Myeloid PHD2cko and PHD3ko enhanced atherosclerotic plaque growth and macrophage apoptosis, while PHD2cko macrophages further activated collagen secretion by fibroblasts in vitro, likely via paracrine SPP1 signalling through TREM2hi macrophages.
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Affiliation(s)
- K van Kuijk
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC
| | - J A F Demandt
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC
| | - J Perales-Patón
- Institute for Computational Biomedicine, Faculty of Medicine, Heidelberg University, and Heidelberg University Hospital, Bioquant, Heidelberg, Germany.,Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany.,Joint Research Centre for Computational Biomedicine (JRC-COMBINE), Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - T L Theelen
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC
| | - C Kuppe
- Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany
| | - E Marsch
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC
| | - J de Bruijn
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC
| | - H Jin
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC
| | - M J Gijbels
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC.,Department of Molecular Genetics, MUMC.,Department of Experimental Vascular Biology, Amsterdam UMC, Amsterdam, The Netherlands.,GROW- School for Oncology and Developmental Biology, MUMC
| | - L Matic
- Dept of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - B M E Mees
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Vascular Surgery, MUMC
| | - C P M Reutelingsperger
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Biochemistry, MUMC
| | - U Hedin
- Dept of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - E A L Biessen
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC.,Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
| | - P Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, VIB Center for Cancer biology, B-3000 Leuven, Belgium
| | - A H Baker
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,BHF Centre for Cardiovascular Sciences (CVS), University of Edinburgh, Edinburgh, UK
| | - R K Kramann
- Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany.,Department of Internal Medicine, Nephrology and Transplantation, Erasmus Medical Center, Rotterdam, The Netherlands
| | - L J Schurgers
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany.,Department of Biochemistry, MUMC
| | - J Saez-Rodriguez
- Institute for Computational Biomedicine, Faculty of Medicine, Heidelberg University, and Heidelberg University Hospital, Bioquant, Heidelberg, Germany.,Joint Research Centre for Computational Biomedicine (JRC-COMBINE), Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - J C Sluimer
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Pathology, MUMC.,BHF Centre for Cardiovascular Sciences (CVS), University of Edinburgh, Edinburgh, UK
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14
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Ways into Understanding HIF Inhibition. Cancers (Basel) 2021; 13:cancers13010159. [PMID: 33466454 PMCID: PMC7796500 DOI: 10.3390/cancers13010159] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/29/2020] [Accepted: 12/31/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Cancer cells adapt to hypoxia, survive, and grow. To that aim, they engage hypoxia-inducible pathways. These pathways are under intense investigation in search of new therapies to interfere with signaling components to kill cancer cells. Nowadays, new technologies enable more in-depth studies of hypoxia-induced signaling including protein–protein interaction and transcriptional processes, as well as the mode of action of different inhibitors. In this review, we give insight into useful techniques for studying the components of the hypoxia-inducible pathway and current inhibitors. Abstract Hypoxia is a key characteristic of tumor tissue. Cancer cells adapt to low oxygen by activating hypoxia-inducible factors (HIFs), ensuring their survival and continued growth despite this hostile environment. Therefore, the inhibition of HIFs and their target genes is a promising and emerging field of cancer research. Several drug candidates target protein–protein interactions or transcription mechanisms of the HIF pathway in order to interfere with activation of this pathway, which is deregulated in a wide range of solid and liquid cancers. Although some inhibitors are already in clinical trials, open questions remain with respect to their modes of action. New imaging technologies using luminescent and fluorescent methods or nanobodies to complement widely used approaches such as chromatin immunoprecipitation may help to answer some of these questions. In this review, we aim to summarize current inhibitor classes targeting the HIF pathway and to provide an overview of in vitro and in vivo techniques that could improve the understanding of inhibitor mechanisms. Unravelling the distinct principles regarding how inhibitors work is an indispensable step for efficient clinical applications and safety of anticancer compounds.
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15
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Tonry C, Finn S, Armstrong J, Pennington SR. Clinical proteomics for prostate cancer: understanding prostate cancer pathology and protein biomarkers for improved disease management. Clin Proteomics 2020; 17:41. [PMID: 33292167 PMCID: PMC7678104 DOI: 10.1186/s12014-020-09305-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022] Open
Abstract
Following the introduction of routine Prostate Specific Antigen (PSA) screening in the early 1990's, Prostate Cancer (PCa) is often detected at an early stage. There are also a growing number of treatment options available and so the associated mortality rate is generally low. However, PCa is an extremely complex and heterogenous disease and many patients suffer disease recurrence following initial therapy. Disease recurrence commonly results in metastasis and metastatic PCa has an average survival rate of just 3-5 years. A significant problem in the clinical management of PCa is being able to differentiate between patients who will respond to standard therapies and those who may benefit from more aggressive intervention at an earlier stage. It is also acknowledged that for many men the disease is not life threatenting. Hence, there is a growing desire to identify patients who can be spared the significant side effects associated with PCa treatment until such time (if ever) their disease progresses to the point where treatment is required. To these important clinical needs, current biomarkers and clinical methods for patient stratification and personlised treatment are insufficient. This review provides a comprehensive overview of the complexities of PCa pathology and disease management. In this context it is possible to review current biomarkers and proteomic technologies that will support development of biomarker-driven decision tools to meet current important clinical needs. With such an in-depth understanding of disease pathology, the development of novel clinical biomarkers can proceed in an efficient and effective manner, such that they have a better chance of improving patient outcomes.
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Affiliation(s)
- Claire Tonry
- UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Stephen Finn
- Department of Histopathology and Morbid Anatomy, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin 8, Ireland
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16
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Hortová-Kohoutková M, Lázničková P, Bendíčková K, De Zuani M, Andrejčinová I, Tomášková V, Suk P, Šrámek V, Helán M, Frič J. Differences in monocyte subsets are associated with short-term survival in patients with septic shock. J Cell Mol Med 2020; 24:12504-12512. [PMID: 32949213 PMCID: PMC7686971 DOI: 10.1111/jcmm.15791] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/24/2020] [Accepted: 07/30/2020] [Indexed: 12/25/2022] Open
Abstract
Sepsis is characterized by dynamic changes of the immune system resulting in deregulated inflammation and failure of homoeostasis and can escalate to septic shock. Circulating monocytes and other innate immune cells are among the first ones to recognize and clear pathogens. Monocytes have an important role in sepsis and septic shock and have been studied as potential diagnostic markers. In total, forty‐two patients with septic shock were recruited and blood samples obtained within first 12 hours of ICU admission. We showed that frequency of classical and intermediate monocytes assessed at the time of admission to the intensive care unit are significantly distinct in patients with septic shock who survived longer that five days from those who died. These parameters correlate significantly with differences in serum levels of inflammatory cytokines MCP‐1, IL‐6, IL‐8, IL‐10, and IL‐18, and with the proportion of helper and cytotoxic T cells. The described changes in frequency of monocyte subsets and their activation status may predict short‐term septic shock survival and help with fast identification of the group of vulnerable patients, who may profit from tailored therapy.
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Affiliation(s)
| | - Petra Lázničková
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Kamila Bendíčková
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Marco De Zuani
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Ivana Andrejčinová
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Veronika Tomášková
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Pavel Suk
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Vladimír Šrámek
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Martin Helán
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jan Frič
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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17
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Nzou G, Wicks RT, VanOstrand NR, Mekky GA, Seale SA, El-Taibany A, Wicks EE, Nechtman CM, Marrotte EJ, Makani VS, Murphy SV, Seeds MC, Jackson JD, Atala AJ. Multicellular 3D Neurovascular Unit Model for Assessing Hypoxia and Neuroinflammation Induced Blood-Brain Barrier Dysfunction. Sci Rep 2020; 10:9766. [PMID: 32555384 PMCID: PMC7299970 DOI: 10.1038/s41598-020-66487-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 05/20/2020] [Indexed: 12/11/2022] Open
Abstract
The blood-brain barrier (BBB) is a dynamic component of the brain-vascular interface that maintains brain homeostasis and regulates solute permeability into brain tissue. The expression of tight junction proteins between adjacent endothelial cells and the presence of efflux proteins prevents entry of foreign substances into the brain parenchyma. BBB dysfunction, however, is evident in many neurological disorders including ischemic stroke, trauma, and chronic neurodegenerative diseases. Currently, major contributors to BBB dysfunction are not well understood. Here, we employed a multicellular 3D neurovascular unit organoid containing human brain microvascular endothelial cells, pericytes, astrocytes, microglia, oligodendrocytes and neurons to model the effects of hypoxia and neuroinflammation on BBB function. Organoids were cultured in hypoxic chamber with 0.1% O2 for 24 hours. Organoids cultured under this hypoxic condition showed increased permeability, pro-inflammatory cytokine production, and increased oxidative stress. The anti-inflammatory agents, secoisolariciresinol diglucoside and 2-arachidonoyl glycerol, demonstrated protection by reducing inflammatory cytokine levels in the organoids under hypoxic conditions. Through the assessment of a free radical scavenger and an anti-inflammatory endocannabinoid, we hereby report the utility of the model in drug development for drug candidates that may reduce the effects of ROS and inflammation under disease conditions. This 3D organoid model recapitulates characteristics of BBB dysfunction under hypoxic physiological conditions and when exposed to exogenous neuroinflammatory mediators and hence may have potential in disease modeling and therapeutic development.
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Affiliation(s)
- Goodwell Nzou
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA.
| | - Robert T Wicks
- Department of Neurology and Neurological Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, 27157, USA
| | - Nicole R VanOstrand
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
| | - Gehad A Mekky
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
- Zoology Department, Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Stephanie A Seale
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
| | - Aya El-Taibany
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
| | - Elizabeth E Wicks
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
| | - Carl M Nechtman
- Department of Neurology and Neurological Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, 27157, USA
| | - Eric J Marrotte
- Department of Neurology and Neurological Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, 27157, USA
| | - Vishruti S Makani
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
| | - Sean V Murphy
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
| | - M C Seeds
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
| | - John D Jackson
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
| | - Anthony J Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA
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18
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Prolyl hydroxylase domain 2 reduction enhances skeletal muscle tissue regeneration after soft tissue trauma in mice. PLoS One 2020; 15:e0233261. [PMID: 32413092 PMCID: PMC7228053 DOI: 10.1371/journal.pone.0233261] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/01/2020] [Indexed: 12/13/2022] Open
Abstract
The transcription factor Hypoxia-inducible factor 1 (HIF-1) plays a pivotal role in tissue regeneration. HIF-1 is negatively controlled by O2-dependent prolyl hydroxylases with a predominant role of prolyl hydroxylase 2 isoform (Phd2). Transgenic mice, hypomorphic for this isoform, accumulate more HIF-1 under normoxic conditions. Using these mice, we investigated the influence of Phd2 and HIF-1 on the regenerative capability of skeletal muscle tissue after myotrauma. Phd2-hypomorphic and wild type mice (on C57Bl/6 background) were grouped with regeneration times from 6 to 168 hours after closed mechanic muscle trauma to the hind limb. Tissue samples were analysed by immuno-staining and real-time PCR. Bone marrow derived macrophages of wild type and Phd2-hypomorphic mice were isolated and analysed via flow cytometry and quantitative real-time PCR. Phd2 reduction led to a higher regenerative capability due to enhanced activation of myogenic factors accompanied by induction of genes responsible for glucose and lactate metabolism in Phd2-hypomorphic mice. Macrophage infiltration into the trauma areas in hypomorphic mice started earlier and was more pronounced compared to wild type mice. Phd2-hypomorphic mice also showed higher numbers of macrophages in areas with sustained trauma 72 hours after myotrauma application. In conclusion, we postulate that the HIF-1 pathway is activated secondary to a Phd2 reduction which may lead to i) higher activation of myogenic factors, ii) increased number of positive stem cell proliferation markers, and iii) accelerated macrophage recruitment to areas of trauma, resulting in faster muscle tissue regeneration after myotrauma. With the current development of prolyl hydroxylase domain inhibitors, our findings point towards a potential clinical benefit after myotrauma.
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Bui TM, Wiesolek HL, Sumagin R. ICAM-1: A master regulator of cellular responses in inflammation, injury resolution, and tumorigenesis. J Leukoc Biol 2020; 108:787-799. [PMID: 32182390 DOI: 10.1002/jlb.2mr0220-549r] [Citation(s) in RCA: 370] [Impact Index Per Article: 92.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/17/2020] [Accepted: 02/21/2020] [Indexed: 02/06/2023] Open
Abstract
ICAM-1 is a cell surface glycoprotein and an adhesion receptor that is best known for regulating leukocyte recruitment from circulation to sites of inflammation. However, in addition to vascular endothelial cells, ICAM-1 expression is also robustly induced on epithelial and immune cells in response to inflammatory stimulation. Importantly, ICAM-1 serves as a biosensor to transduce outside-in-signaling via association of its cytoplasmic domain with the actin cytoskeleton following ligand engagement of the extracellular domain. Thus, ICAM-1 has emerged as a master regulator of many essential cellular functions both at the onset and at the resolution of pathologic conditions. Because the role of ICAM-1 in driving inflammatory responses is well recognized, this review will mainly focus on newly emerging roles of ICAM-1 in epithelial injury-resolution responses, as well as immune cell effector function in inflammation and tumorigenesis. ICAM-1 has been of clinical and therapeutic interest for some time now; however, several attempts at inhibiting its function to improve injury resolution have failed. Perhaps, better understanding of its beneficial roles in resolution of inflammation or its emerging function in tumorigenesis will spark new interest in revisiting the clinical value of ICAM-1 as a potential therapeutic target.
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Affiliation(s)
- Triet M Bui
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Hannah L Wiesolek
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ronen Sumagin
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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20
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Hypoxic-inflammatory responses under acute hypoxia: In Vitro experiments and prospective observational expedition trial. Int J Mol Sci 2020; 21:ijms21031034. [PMID: 32033172 PMCID: PMC7037641 DOI: 10.3390/ijms21031034] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/29/2020] [Accepted: 02/01/2020] [Indexed: 01/08/2023] Open
Abstract
Induction of hypoxia-inducible-factor-1α (HIF-1α) pathway and HIF-target genes allow adaptation to hypoxia and are associated with reduced incidence of acute mountain sickness (AMS). Little is known about HIF-pathways in conjunction with inflammation or exercise stimuli under acute hypobaric hypoxia in non-acclimatized individuals. We therefore tested the hypotheses that (1) both hypoxic and inflammatory stimuli induce hypoxic-inflammatory signaling pathways in vitro, (2) similar results are seen in vivo under hypobaric hypoxia, and (3) induction of HIF-dependent genes is associated with AMS in 11 volunteers. In vitro, peripheral blood mononuclear cells (PBMCs) were incubated under hypoxic (10%/5% O2) or inflammatory (CD3/CD28) conditions. In vivo, Interleukin 1β (IL-1β), C-X-C Chemokine receptor type 4 (CXCR-4), and C-C Chemokine receptor type 2 (CCR-2) mRNA expression, cytokines and receptors were analyzed under normoxia (520 m above sea level (a.s.l.)), hypobaric hypoxia (3883 m a.s.l.) before/after exercise, and after 24 h under hypobaric hypoxia. In vitro, isolated hypoxic (p = 0.004) or inflammatory (p = 0.006) stimuli induced IL-1β mRNA expression. CCR-2 mRNA expression increased under hypoxia (p = 0.005); CXCR-4 mRNA expression remained unchanged. In vivo, cytokines, receptors, and IL-1β, CCR-2 and CXCR-4 mRNA expression increased under hypobaric hypoxia after 24 h (all p ≤ 0.05). Of note, proinflammatory IL-1β and CXCR-4 mRNA expression changes were associated with symptoms of AMS. Thus, hypoxic-inflammatory pathways are differentially regulated, as combined hypoxic and exercise stimulus was stronger in vivo than isolated hypoxic or inflammatory stimulation in vitro.
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21
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Now a Nobel gas: oxygen. Pflugers Arch 2019; 471:1343-1358. [PMID: 31754831 DOI: 10.1007/s00424-019-02334-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 11/15/2019] [Accepted: 11/18/2019] [Indexed: 02/07/2023]
Abstract
The recent bestowal of the Nobel Prize 2019 in Physiology or Medicine to Gregg L. Semenza, Sir Peter J. Ratcliffe, and William G. Kaelin Jr. celebrates a series of remarkable discoveries that span from the physiological research question on how oxygen deficiency (hypoxia) induces the red blood cell forming hormone erythropoietin (Epo) to the first clinical application of a novel family of Epo-inducing drugs to treat patients suffering from renal anemia. This review looks back at the most important findings made by the three Nobel laureates, highlights current research trends, and sheds an eye on future perspectives of hypoxia research, including emerging and potential clinical applications.
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Marciniak J, Lossdörfer S, Knaup I, Bastian A, Craveiro RB, Jäger A, Wolf M. Orthodontic cell stress modifies proinflammatory cytokine expression in human PDL cells and induces immunomodulatory effects via TLR-4 signaling in vitro. Clin Oral Investig 2019; 24:1411-1419. [PMID: 31691860 DOI: 10.1007/s00784-019-03111-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 10/07/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Biomechanical orthodontics loading of the periodontium initiates a cascade of inflammatory signaling events that induce periodontal remodeling and finally facilitate orthodontic tooth movement. Pattern recognition receptors such as toll-like receptors (TLRs) have been well characterized for their ability to induce the activation of inflammatory, immunomodulatory cytokines. Here, we examined whether the cellular response of human periodontal ligament (hPDL) cells to mechanical stress involves TLR-4 signaling in vitro. MATERIALS AND METHODS Confluent hPDL cells were cultured in the presence of 5 μg/ml TLR-4 antibody (TLR-4ab) for 1 h prior to the induction of compressive forces by the use of round glass plates for 24 h. At harvest, interleukin-6 and interleukin-8 (IL-6, IL-8) mRNA and protein expression were analyzed by real-time PCR and ELISA. The immunomodulatory role of mechanical cell stress and TLR-4 signaling was addressed in co-culture experiments of hPDL and THP-1 cells targeting monocyte adhesion and by culturing osteoclastic precursors (RAW 264.7) in the presence of the conditioned medium of hPDL cells that had been mechanically loaded before. RESULTS Basal expression of IL-6 and IL-8 was not affected by TLR-4ab, but increased significantly upon mechanical loading of hPDL cells. When cells were mechanically stressed in the presence of TLR-4ab, the effect seen for loading alone was markedly reduced. Likewise, monocyte adhesion and osteoclastic differentiation were enhanced significantly by mechanical stress of hPDL cells and this effect was partially inhibited by TLR-4ab. CONCLUSIONS The results of the present study indicate a proinflammatory and immunomodulatory influence of mechanical loading on hPDL cells. Intracellular signaling involves a TLR-4-dependent pathway. CLINICAL RELEVANCE These findings hold out the prospect of interfering with the cellular response to mechanical cell stress in order to minimize undesired side effects of orthodontic tooth movement.
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Affiliation(s)
- Jana Marciniak
- Department of Orthodontics, Dental Clinic, University of Aachen, Pauwelsstr. 30, 52074, Aachen, Germany.,Department of Orthodontics, Dental Clinic, University of Bonn, Bonn, Germany
| | - Stefan Lossdörfer
- Department of Orthodontics, Dental Clinic, University of Bonn, Bonn, Germany
| | - Isabel Knaup
- Department of Orthodontics, Dental Clinic, University of Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Asisa Bastian
- Department of Orthodontics, Dental Clinic, University of Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Rogerio B Craveiro
- Department of Orthodontics, Dental Clinic, University of Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Andreas Jäger
- Department of Orthodontics, Dental Clinic, University of Bonn, Bonn, Germany
| | - Michael Wolf
- Department of Orthodontics, Dental Clinic, University of Aachen, Pauwelsstr. 30, 52074, Aachen, Germany.
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23
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Spears JR. Reperfusion Microvascular Ischemia After Prolonged Coronary Occlusion: Implications And Treatment With Local Supersaturated Oxygen Delivery. HYPOXIA 2019; 7:65-79. [PMID: 31696129 PMCID: PMC6814765 DOI: 10.2147/hp.s217955] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/20/2019] [Indexed: 12/16/2022]
Abstract
Following a prolonged coronary arterial occlusion, heterogeneously scattered, focal regions of low erythrocyte flow are commonly found throughout the reperfused myocardium. Experimental studies have also demonstrated the presence of widespread, focally patchy regions of microvascular ischemia during reperfusion (RMI). However, the potential contribution of RMI to tissue viability and function has received little attention in the absence of practical clinical methods for its detection. In this review, the anatomic/functional basis of RMI is summarized, along with the evidence for its presence in reperfused myocardium. Advances in microcirculation research related to obstructive responses of vascular endothelial cells and blood elements to the effects of hypoxia and low shear stress are discussed, and a potential cycle of intensification of RMI from such responses and progressive loss of functional capillary density is presented. In capillaries with impaired erythrocyte flow, compensatory increases in the delivery of oxygen, because of its low solubility in plasma, are effective only at high partial pressures. As discussed herein, attenuation of the cycle with oxygen at hyperbaric levels in plasma is, very likely, responsible for improved tissue level perfusion noted experimentally. Observed clinical benefits from intracoronary SuperSaturated oxygen (SSO2) delivery, including infarct size reduction, can be attributed to attenuation of RMI with improvement in microvascular blood flow.
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Affiliation(s)
- James Richard Spears
- Cardiovascular Research Laboratory, Department of Medicine, Division of Cardiology, Beaumont Heart & Vascular Center, Dearborn, MI 48124, USA
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24
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Halvarsson C, Rörby E, Eliasson P, Lang S, Soneji S, Jönsson JI. Putative Role of Nuclear Factor-Kappa B But Not Hypoxia-Inducible Factor-1α in Hypoxia-Dependent Regulation of Oxidative Stress in Hematopoietic Stem and Progenitor Cells. Antioxid Redox Signal 2019; 31:211-226. [PMID: 30827134 PMCID: PMC6590716 DOI: 10.1089/ars.2018.7551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 03/01/2019] [Accepted: 03/01/2019] [Indexed: 12/14/2022]
Abstract
Aims: Adaptation to low oxygen of hematopoietic stem cells (HSCs) in the bone marrow has been demonstrated to depend on the activation of hypoxia-inducible factor (HIF)-1α as well as the limited production of reactive oxygen species (ROS). In this study, we aimed at determining whether HIF-1α is involved in protecting HSCs from ROS. Results: Oxidative stress was induced by DL-buthionine-(S,R)-sulfoximine (BSO)-treatment, which increases the mitochondrial ROS level. Hypoxia rescued Lineage-Sca-1+c-kit+ (LSK) cells from BSO-induced apoptosis, whereas cells succumbed to apoptosis in normoxia. Apoptosis in normoxia was inhibited with the antioxidant N-acetyl-L-cysteine or by overexpression of anti-apoptotic BCL-2. Moreover, stabilized expression of oxygen-insensitive HIFs could not protect LSK cells from oxidative stress-induced apoptosis at normoxia, neither could short hairpin RNA to Hif-1α inhibit the protective effects by hypoxia in LSK cells. Likewise, BSO treatment of LSK cells from Hif-1α knockout mice did not suppress the effects seen in hypoxia. Microarray analysis identified the nuclear factor-kappa B (NF-κB) pathway as a pathway induced by hypoxia. By using NF-κB lentiviral construct and DNA-binding assay, we found increased NF-κB activity in cells cultured in hypoxia compared with normoxia. Using an inhibitor against NF-κB activation, we could confirm the involvement of NF-κB signaling as BSO-mediated cell death was significantly increased in hypoxia after adding the inhibitor. Innovation: HIF-1α is not involved in protecting HSCs and progenitors to elevated levels of ROS on glutathione depletion during hypoxic conditions. Conclusion: The study proposes a putative role of NF-κB signaling as a hypoxia-induced regulator in early hematopoietic cells.
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Affiliation(s)
- Camilla Halvarsson
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Emma Rörby
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Pernilla Eliasson
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Stefan Lang
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Shamit Soneji
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Jan-Ingvar Jönsson
- Experimental Hematology Unit, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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25
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Bu S, Li B, Wang Q, Gu T, Dong Q, Miao X, Lai D. Epithelial ovarian cancer stem‑like cells are resistant to the cellular lysis of cytokine‑induced killer cells via HIF1A‑mediated downregulation of ICAM‑1. Int J Oncol 2019; 55:179-190. [PMID: 31059002 DOI: 10.3892/ijo.2019.4794] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 01/10/2019] [Indexed: 11/06/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is the most lethal of all gynecologic tumors. Cancer spheroid culture is a widely used model to study cancer stem cells. Previous studies have demonstrated the effectiveness of cytokine‑induced killer (CIK) cell‑based therapies against cancer and cancer stem cells. However, it is not clear how EOC spheroid cells respond to CIK‑mediated cellular lysis, and the mechanisms involved have never been reported before. A flow cytometry‑based method was used to evaluate the anti‑cancer effects of CIK cells against adherent A2780 cells and A2780 spheroids. To demonstrate the association between hypoxia inducible factor‑1α (HIF1A) and intercellular adhesion molecule‑1 (ICAM‑1), two HIF1A short hairpin RNA (shRNA) stable transfected cell lines were established. Furthermore, the protein expression levels of hypoxia/HIF1A‑associated signaling pathways were evaluated, including transforming growth factor‑β1 (TGF‑β1)/mothers against decapentaplegic homologs (SMADs) and nuclear factor‑κB (NF‑κB) signaling pathways, comparing A2780 adherent cells and cancer spheroids. Flow cytometry revealed that A2780 spheroid cells were more resistant to CIK‑mediated cellular lysis, which was partially reversed by an anti‑ICAM‑1 antibody. HIF1A was significantly upregulated in A2780 spheroids compared with adherent cells. Using HIF1A shRNA stable transfected cell lines and cobalt chloride, it was revealed that hypoxia/HIF1A contributed to downregulation of ICAM‑1 in A2780 spheroid cells and adherent cells. Furthermore, hypoxia/HIF1A‑associated signaling pathways, TGF‑β1/SMADs and NF‑κB, were activated in A2780 spheroid cells by using western blotting. The findings indicate that EOC stem‑like cells resist the CIK‑mediated cellular lysis via HIF1A‑mediated downregulation of ICAM‑1, which may be instructive for optimizing and enhancing CIK‑based therapies.
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Affiliation(s)
- Shixia Bu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200030, P.R. China
| | - Boning Li
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200030, P.R. China
| | - Qian Wang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200030, P.R. China
| | - Tingting Gu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200030, P.R. China
| | - Qianggang Dong
- Shanghai iCELL Biotechnology Co., Ltd., Shanghai 200333, P.R. China
| | - Xiaofei Miao
- Shanghai iCELL Biotechnology Co., Ltd., Shanghai 200333, P.R. China
| | - Dongmei Lai
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200030, P.R. China
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26
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Schouten LR, van Kaam AH, Kohse F, Veltkamp F, Bos LD, de Beer FM, van Hooijdonk RT, Horn J, Straat M, Witteveen E, Glas GJ, Wieske L, van Vught LA, Wiewel MA, Ingelse SA, Cortjens B, van Woensel JB, Bos AP, Walther T, Schultz MJ, Wösten-van Asperen RM. Age-dependent differences in pulmonary host responses in ARDS: a prospective observational cohort study. Ann Intensive Care 2019; 9:55. [PMID: 31089908 PMCID: PMC6517452 DOI: 10.1186/s13613-019-0529-4] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/06/2019] [Indexed: 12/27/2022] Open
Abstract
Background Results from preclinical studies suggest that age-dependent differences in host defense and the pulmonary renin–angiotensin system (RAS) are responsible for observed differences in epidemiology of acute respiratory distress syndrome (ARDS) between children and adults. The present study compares biomarkers of host defense and RAS in bronchoalveolar lavage (BAL) fluid from neonates, children, adults, and older adults with ARDS. Methods In this prospective observational study, we enrolled mechanical ventilated ARDS patients categorized into four age groups: 20 neonates (< 28 days corrected postnatal age), 29 children (28 days–18 years), 26 adults (18–65 years), and 17 older adults (> 65 years of age). All patients underwent a nondirected BAL within 72 h after intubation. Activities of the two main enzymes of RAS, angiotensin converting enzyme (ACE) and ACE2, and levels of biomarkers of inflammation, endothelial activation, and epithelial damage were determined in BAL fluid. Results Levels of myeloperoxidase, interleukin (IL)-6, IL-10, and p-selectin were higher with increasing age, whereas intercellular adhesion molecule-1 was higher in neonates. No differences in activity of ACE and ACE2 were seen between the four age groups. Conclusions Age-dependent differences in the levels of biomarkers in lungs of ARDS patients are present. Especially, higher levels of markers involved in the neutrophil response were found with increasing age. In contrast to preclinical studies, age is not associated with changes in the pulmonary RAS. Electronic supplementary material The online version of this article (10.1186/s13613-019-0529-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Laura R Schouten
- Department of Pediatric Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Anton H van Kaam
- Department of Neonatology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Franziska Kohse
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.,Department of Pharmacology and Therapeutics, School of Medicine and School of Pharmacy, University College Cork, Cork, Ireland
| | - Floor Veltkamp
- Department of Pediatric Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Lieuwe D Bos
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Friso M de Beer
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Roosmarijn T van Hooijdonk
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Janneke Horn
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Marleen Straat
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Esther Witteveen
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Gerie J Glas
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Luuk Wieske
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Lonneke A van Vught
- Center of Experimental Molecular Medicine (CEMM), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Maryse A Wiewel
- Center of Experimental Molecular Medicine (CEMM), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Sarah A Ingelse
- Department of Pediatric Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Bart Cortjens
- Department of Pediatric Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Job B van Woensel
- Department of Pediatric Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Albert P Bos
- Department of Pediatric Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Thomas Walther
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany.,Department of Pharmacology and Therapeutics, School of Medicine and School of Pharmacy, University College Cork, Cork, Ireland
| | - Marcus J Schultz
- Department of Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Laboratory of Experimental Intensive Care and Anesthesiology (L·E·I·C·A), Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Mahidol-Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand
| | - Roelie M Wösten-van Asperen
- Department of Pediatric Intensive Care, Amsterdam University Medical Centers, Amsterdam, The Netherlands. .,Department of Pediatric Intensive Care, Wilhelmina Children's Hospital, University Medical Center Utrecht, Lundlaan 6, 3584 EA, Utrecht, The Netherlands.
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Strowitzki MJ, Cummins EP, Taylor CT. Protein Hydroxylation by Hypoxia-Inducible Factor (HIF) Hydroxylases: Unique or Ubiquitous? Cells 2019; 8:cells8050384. [PMID: 31035491 PMCID: PMC6562979 DOI: 10.3390/cells8050384] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 04/24/2019] [Accepted: 04/24/2019] [Indexed: 02/07/2023] Open
Abstract
All metazoans that utilize molecular oxygen (O2) for metabolic purposes have the capacity to adapt to hypoxia, the condition that arises when O2 demand exceeds supply. This is mediated through activation of the hypoxia-inducible factor (HIF) pathway. At physiological oxygen levels (normoxia), HIF-prolyl hydroxylases (PHDs) hydroxylate proline residues on HIF-α subunits leading to their destabilization by promoting ubiquitination by the von-Hippel Lindau (VHL) ubiquitin ligase and subsequent proteasomal degradation. HIF-α transactivation is also repressed in an O2-dependent way due to asparaginyl hydroxylation by the factor-inhibiting HIF (FIH). In hypoxia, the O2-dependent hydroxylation of HIF-α subunits by PHDs and FIH is reduced, resulting in HIF-α accumulation, dimerization with HIF-β and migration into the nucleus to induce an adaptive transcriptional response. Although HIFs are the canonical substrates for PHD- and FIH-mediated protein hydroxylation, increasing evidence indicates that these hydroxylases may also have alternative targets. In addition to PHD-conferred alterations in protein stability, there is now evidence that hydroxylation can affect protein activity and protein/protein interactions for alternative substrates. PHDs can be pharmacologically inhibited by a new class of drugs termed prolyl hydroxylase inhibitors which have recently been approved for the treatment of anemia associated with chronic kidney disease. The identification of alternative targets of HIF hydroxylases is important in order to fully elucidate the pharmacology of hydroxylase inhibitors (PHI). Despite significant technical advances, screening, detection and verification of alternative functional targets for PHDs and FIH remain challenging. In this review, we discuss recently proposed non-HIF targets for PHDs and FIH and provide an overview of the techniques used to identify these.
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Affiliation(s)
- Moritz J Strowitzki
- UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland.
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Eoin P Cummins
- UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland.
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Cormac T Taylor
- UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland.
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
- Systems Biology Ireland, University College Dublin, Belfield, Dublin 4, Ireland.
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28
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Marciniak J, Lossdörfer S, Kirschneck C, Deschner J, Jäger A, Wolf M. Heat shock protein 70 dampens the inflammatory response of human PDL cells to mechanical loading in vitro. J Periodontal Res 2019; 54:481-488. [PMID: 30865286 DOI: 10.1111/jre.12648] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 02/04/2019] [Accepted: 02/11/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND OBJECTIVE Previously, we demonstrated an inflammatory response of human PDL (hPDL) cells to mechanical loading. The cellular reaction was dampened by heat pre-treatment suggesting a protective role for heat shock proteins (HSP) during stress-induced ischemia. Here we explored if HSP70, which has already been documented in the pressure zone of tooth movement, might be regulatorily involved in the attenuation of the inflammatory response. MATERIALS AND METHODS Fifth passage hPDL cells were mechanically loaded in the presence of the HSP70 inhibitor VER155008. Cell morphology, HSP70 expression, viability, IL-6 and IL-8 expression were determined by means of microscopy, realtime-PCR and ELISA. The conditioned medium of mechanically loaded and pre-treated hPDL cells was used to culture monocytes to identify a potential impact on adhesion and osteoclastic differentiation capacity. RESULTS Mechanical cell stress resulted in a significant increase of pro-inflammatory parameters. HSP70 inhibition led to a further enhancement of cytokine expression. The conditioned medium of mechanically loaded hPDL cells significantly increased monocyte adhesion and differentiation along the osteoclastic pathway. VER155008 pronounced this effect significantly. CONCLUSION The results indicate a regulatory role for HSP70 in the control of the inflammatory hPDL cell response to mechanical loading and identify HSP70 as a target in the attempt to attenuate tissue damage during orthodontic tooth movement. Furthermore, the present findings point to the risk of increased periodontal destruction when medication targeting HSP70 is applied for severe medical conditions during orthodontic tooth movement.
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Affiliation(s)
- Jana Marciniak
- Department of Orthodontics, Dental Clinic, University of Aachen, Aachen, Germany.,Department of Orthodontics, Dental Clinic, University of Bonn, Bonn, Germany
| | - Stefan Lossdörfer
- Department of Orthodontics, Dental Clinic, University of Bonn, Bonn, Germany
| | - Christian Kirschneck
- Department of Orthodontics, Dental Clinic, University of Regensburg, Regensburg, Germany
| | - James Deschner
- Department of Periodontology and Restorative Dentistry, University of Mainz, Mainz, Germany
| | - Andreas Jäger
- Department of Orthodontics, Dental Clinic, University of Bonn, Bonn, Germany
| | - Michael Wolf
- Department of Orthodontics, Dental Clinic, University of Aachen, Aachen, Germany
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Wang Q, Zhao L, Xu C, Zhou J, Wu Y. Fusobacterium nucleatum stimulates monocyte adhesion to and transmigration through endothelial cells. Arch Oral Biol 2019; 100:86-92. [PMID: 30818128 DOI: 10.1016/j.archoralbio.2019.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/04/2019] [Accepted: 02/19/2019] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Fusobacterium nucleatum (F. nucleatum) is an important pathogen in periodontitis. Previous studies have demonstrated its ability to spread via haematogenesis and modulate host immune responses. However, little is known regarding its effect on endothelial cells (ECs) and leukocytes. The aim of this study was to assess the effect of F. nucleatum on monocyte attachment and transmigration through ECs. DESIGN Human umbilical vein endothelial cells (HUVECs) and human leukemic monocyte (THP-1) cells were infected with F. nucleatum and assessed for monocyte adhesion, transendothelial migration, and HUVEC proliferation/apoptosis. Real-time PCR, western blotting and ELISA were performed to assess the expression of proinflammatory cytokines, adhesion molecules and chemokines in both cells. RESULTS F. nucleatum challenge significantly induced THP-1 cell adhesion and transmigration and markedly impaired cell proliferation and apoptosis in HUVECs. A parallel increase in vascular cell adhesion molecule-1, intercellular adhesion molecule-1 and E-selectin expression in HUVECs and an upregulation of tumour necrosis factor-α, interleukin (IL)-1β, IL-6, IL-8, and monocyte chemoattractant protein-1 in both HUVECs and THP-1 cells were observed. The expression of nuclear factor-kappa B was also enhanced in HUVECs and THP-1 cells upon F. nucleatum infection. CONCLUSIONS F. nucleatum triggers an inflammatory response against infection in cells and promotes the recruitment and transmigration of monocytes through ECs.
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Affiliation(s)
- Qianting Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lei Zhao
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chunmei Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jieyu Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yafei Wu
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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Wolf M, Marciniak J, Lossdörfer S, Kirschneck C, Brauner I, Götz W, Jäger A. Role of HSP70 protein in human periodontal ligament cell function and physiology. Ann Anat 2018; 221:76-83. [PMID: 30253189 DOI: 10.1016/j.aanat.2018.09.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 06/06/2018] [Accepted: 09/14/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Heat pre-treatment of mechanically loaded human periodontal ligament cells (hPDL) dampens the inflammatory cellular response, as evidenced by a reduced expression of pro-inflammatory cytokines, inhibition of monocyte adhesion and osteoclastic differentiation. These findings imply heat shock proteins (HSP) as cell protective molecules acting in the PDL that are up-regulated upon ischemia caused by mechanical loading. HSP70 and its inhibition by VER155008 as the active agent in several pharmaceuticals are established targets and strategies, respectively, in the treatment of neoproliferative diseases. However, the effect of both players on periodontal remodeling in unknown. Therefore, we analyzed the role of HSP70 and its frequently used inhibitor VER155008 in the regulation of physiological hPDL cell functions and immune cell interaction. MATERIALS AND METHODS Fifth passage hPDL cells were cultured in the presence of 25μm HSP70 inactivating agent VER155008. At harvest, HSP70 expression, cell proliferation, and parameters of cell interaction, colony formation and wound healing were analyzed by means of real-time PCR, immunohistochemistry, Western blot, biochemical MTS assay, microscopy, and functional assays for monocyte adhesion and differentiation. RESULTS Basal HSP70 expression and hPDL cell morphology were not affected by HSP70 inhibitor VER155008. In contrast, cell proliferation, tissue defect healing, and colony formation were reduced significantly following HSP70 inhibition, whereas apoptosis and necrosis, monocyte adhesion and osteoclastic differentiation were markedly increased. CONCLUSIONS The present data indicate a regulatory role for HSP70 protein in hPDL cell biology. CLINICAL RELEVANCE These findings identify HSP70 as a promising target in the attempt to modify periodontal remodeling and point to potential periodontal side effects of HSP70 pharmaceutical usage.
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Affiliation(s)
- Michael Wolf
- Department of Orthodontics, University Hospital of the RWTH Aachen, Germany.
| | - Jana Marciniak
- Department of Orthodontics, University Hospital of the RWTH Aachen, Germany; Department of Orthodontics, Dental Clinic, University of Bonn, Germany
| | - Stefan Lossdörfer
- Department of Orthodontics, Dental Clinic, University of Bonn, Germany
| | | | - Isabel Brauner
- Department of Orthodontics, University Hospital of the RWTH Aachen, Germany
| | - Werner Götz
- Department of Orthodontics, Dental Clinic, University of Bonn, Germany
| | - Andreas Jäger
- Department of Orthodontics, Dental Clinic, University of Bonn, Germany
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31
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Kouroumalis A, Mavrogonatou E, Savvidou OD, Papagelopoulos PJ, Pratsinis H, Kletsas D. Major traits of the senescent phenotype of nucleus pulposus intervertebral disc cells persist under the specific microenvironmental conditions of the tissue. Mech Ageing Dev 2018; 177:118-127. [PMID: 29778758 DOI: 10.1016/j.mad.2018.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/23/2018] [Accepted: 05/16/2018] [Indexed: 01/25/2023]
Abstract
Intervertebral discs (IVDs) are the joints of the spine, mainly consisting of extracellular matrix (ECM) with a low number of cells embedded therein. Low cellularity stems from nutrient deprivation due to the lack of blood supply, as well as from the hypoxic and hyperosmotic conditions prevailing in the tissue. Intervertebral disc degeneration (IDD) has been firmly connected with low back pain, a major age-related disease, whereas degenerated discs have been characterized by increased proteolytic activity and accumulation of senescent cells. While the catabolic phenotype of senescent IVD cells has been documented, whether this phenotype is preserved under the harsh conditions met in the IVD milieu has never been investigated. Here we showed that a combination of low glucose, hypoxia, high osmolality and absence of serum is anti-proliferative for young disc cells. In addition, we demonstrated for the first time that classical senescence markers, namely p16INK4a, p21WAF1 and ICAM-1, remain up-regulated in senescent cells under these conditions. Finally, up-regulation of the main senescence-associated ECM degrading enzymes, i.e. MMP-1, -2 and -3 was maintained in this strict environment. Conservation of IVD cells' senescent phenotype under the actual conditions these cells are confronted with in vivo further supports their possible implication in IDD.
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Affiliation(s)
- Anastasios Kouroumalis
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research "Demokritos", Athens, Greece
| | - Eleni Mavrogonatou
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research "Demokritos", Athens, Greece
| | - Olga D Savvidou
- The First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Medical School, ATTIKON University Hospital, Athens, Greece
| | - Panayiotis J Papagelopoulos
- The First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Medical School, ATTIKON University Hospital, Athens, Greece
| | - Harris Pratsinis
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research "Demokritos", Athens, Greece
| | - Dimitris Kletsas
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research "Demokritos", Athens, Greece.
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Kennel KB, Burmeister J, Schneider M, Taylor CT. The PHD1 oxygen sensor in health and disease. J Physiol 2018; 596:3899-3913. [PMID: 29435987 DOI: 10.1113/jp275327] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 01/31/2018] [Indexed: 12/13/2022] Open
Abstract
The hypoxia-inducible factor (HIF) co-ordinates the adaptive transcriptional response to hypoxia in metazoan cells. The hypoxic sensitivity of HIF is conferred by a family of oxygen-sensing enzymes termed HIF hydroxylases. This family consists of three prolyl hydroxylases (PHD1-3) and a single asparagine hydroxylase termed factor inhibiting HIF (FIH). It has recently become clear that HIF hydroxylases are functionally non-redundant and have discrete but overlapping physiological roles. Furthermore, altered abundance or activity of these enzymes is associated with a number of pathologies. Pharmacological HIF-hydroxylase inhibitors have recently proven to be both tolerated and therapeutically effective in patients. In this review, we focus on the physiology, pathophysiology and therapeutic potential of the PHD1 isoform, which has recently been implicated in diseases including inflammatory bowel disease, ischaemia and cancer.
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Affiliation(s)
- Kilian B Kennel
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Julius Burmeister
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Martin Schneider
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Cormac T Taylor
- UCD Conway Institute & School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
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Bai W, Zhou J, Zhou N, Liu Q, Cui J, Zou W, Zhang W. Hypoxia-increased RAGE expression regulates chemotaxis and pro-inflammatory cytokines release through nuclear translocation of NF-κ B and HIF1α in THP-1 cells. Biochem Biophys Res Commun 2017; 495:2282-2288. [PMID: 29258824 DOI: 10.1016/j.bbrc.2017.12.084] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 12/15/2017] [Indexed: 12/21/2022]
Abstract
The potential role of hypoxia in mediating the receptor for advanced glycation end products (RAGE) expression deserves to be confirmed. And the role of RAGE in hypoxia-induced chemotaxis and inflammation is still unclear. In present study, THP-1 cells were pretreated with siRNA to block HIF1α, NF-κ B, or RAGE, followed by exposed to hypoxia (combined with H2O2 or SNP), and then RAGE expression, nuclear translocation of HIF1α and NF-κ B, release of TNF-α and IL-1β, as well as expression of MCP-1 and CCR2 were measured. The results revealed that RAGE mRNA and protein in THP-1 cells were significantly increased after exposed into hypoxia atmosphere, especially into the solution containing SNP or H2O2. Moreover, SNP or H2O2 exposure could further amplify hypoxia-induced nuclear translocation of HIF-1α and NF-κ B. Knockdown HIF-1α or NF-κ B by siRNAs could reduce hypoxia- and oxidative stress-induced RAGE hyper-expression. And pretreatment THP-1 cells with RAGE siRNA or NF-κ B siRNA could reduce hypoxia- and oxidative stress-induced expression of MCP-1 and CCR2, and release of TNF-α and IL-1β. Thus, hypoxia not only increases RAGE expression in THP-1 cells by promoting nuclear translocation of NF-κ B and HIF1α, but also regulates chemotaxis and pro-inflammatory cytokines release, which may be partially mediated through upregulation of RAGE expression.
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Affiliation(s)
- Wei Bai
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Zhou
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Na Zhou
- The Department of Respiratory Medicine, Nanchang Third Hospital, Nanchang, China
| | - Qin Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jian Cui
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wei Zou
- Key Laboratory of Hunan Province for Traditional Chinese Medicine in Obstetrics & Gynecology Research, Hunan Province Maternal and Child Health Hospital, Changsha, China.
| | - Wei Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, China.
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Baldea I, Teacoe I, Olteanu DE, Vaida-Voievod C, Clichici A, Sirbu A, Filip GA, Clichici S. Effects of different hypoxia degrees on endothelial cell cultures-Time course study. Mech Ageing Dev 2017; 172:45-50. [PMID: 29155057 DOI: 10.1016/j.mad.2017.11.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 10/01/2017] [Accepted: 11/01/2017] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Exposure of the endothelial cells to hypoxia, the decrease in oxygen supply can trigger an endothelial response. This response is involved in inflammatory diseases, tumorigenesis, and also with the micro vascular damage associated with aging. The aim of our study was to determine the hypoxia/re-oxygenation induced response in vitro, using human umbilical vein endothelial cells (HUVEC) cultures, at different time points with focus on cell viability, apoptosis oxidative stress and angiogenesis stimulation. MATERIALS AND METHODS Cells were exposed to 10%, 5% or 0% O2 for 6h, 12h, and 24h. Viability was measured through colorimetry, apoptosis - annexin V-FITC staining, DNA lesions (γH2AX), endothelial activation (sICAM1), angiogenesis (HIF1α), oxidative stress (malondialdehyde, superoxidismutase and NFκB activation) were determined by ELISA, Western Blot and spectrophotometry. RESULTS AND DISCUSSION Hypoxia decreased viability, increased apoptosis, oxidative stress, endothelial activation and angiogenesis, depending on O2 concentration and time exposure. Short exposures to 5% and 10% O2, efficiently activated anti-apoptotic mechanisms through NFκB activation, HIF1α and γH2AX related DNA damage repair pathways. However, severe hypoxia and longer exposures to mild hypoxia induced high oxidative stress related damage and eventually led to apoptosis, through strong increases of HIF1α and accumulating DNA lesions.
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Affiliation(s)
- Ioana Baldea
- University of Medicine and Pharmacy, Department of Physiology, Clinicilor 1, Cluj-Napoca, Romania.
| | - Ioana Teacoe
- University of Medicine and Pharmacy, Department of Physiology, Clinicilor 1, Cluj-Napoca, Romania.
| | - Diana Elena Olteanu
- University of Medicine and Pharmacy, Department of Physiology, Clinicilor 1, Cluj-Napoca, Romania.
| | - Cristina Vaida-Voievod
- University of Medicine and Pharmacy, Department of Physiology, Clinicilor 1, Cluj-Napoca, Romania.
| | - Andra Clichici
- University of Medicine and Pharmacy, Department of Physiology, Clinicilor 1, Cluj-Napoca, Romania
| | - Alexandru Sirbu
- University of Medicine and Pharmacy, Department of Physiology, Clinicilor 1, Cluj-Napoca, Romania
| | - Gabriela Adriana Filip
- University of Medicine and Pharmacy, Department of Physiology, Clinicilor 1, Cluj-Napoca, Romania.
| | - Simona Clichici
- University of Medicine and Pharmacy, Department of Physiology, Clinicilor 1, Cluj-Napoca, Romania.
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Mohamed AS, Hanafi NI, Sheikh Abdul Kadir SH, Md Noor J, Abdul Hamid Hasani N, Ab Rahim S, Siran R. Ursodeoxycholic acid protects cardiomyocytes against cobalt chloride induced hypoxia by regulating transcriptional mediator of cells stress hypoxia inducible factor 1α and p53 protein. Cell Biochem Funct 2017; 35:453-463. [PMID: 29027248 DOI: 10.1002/cbf.3303] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 08/10/2017] [Accepted: 09/01/2017] [Indexed: 11/06/2022]
Abstract
In hepatocytes, ursodeoxycholic acid (UDCA) activates cell signalling pathways such as p53, intracellular calcium ([Ca2+ ]i ), and sphingosine-1-phosphate (S1P)-receptor via Gαi -coupled-receptor. Recently, UDCA has been shown to protect the heart against hypoxia-reoxygenation injury. However, it is not clear whether UDCA cardioprotection against hypoxia acts through a transcriptional mediator of cells stress, HIF-1α and p53. Therefore, in here, we aimed to investigate whether UDCA could protect cardiomyocytes (CMs) against hypoxia by regulating expression of HIF-1α, p53, [Ca2+ ]i , and S1P-Gαi -coupled-receptor. Cardiomyocytes were isolated from newborn rats (0-2 days), and hypoxia was induced by using cobalt chloride (CoCl2 ). Cardiomyocytes were treated with UDCA and cotreated with either FTY720 (S1P-receptor agonist) or pertussis toxin (PTX; Gαi inhibitor). Cells were subjected for proliferation assay, beating frequency, QuantiGene Plex assay, western blot, immunofluorescence, and calcium imaging. Our findings showed that UDCA counteracted the effects of CoCl2 on cell viability, beating frequency, HIF-1α, and p53 protein expression. We found that these cardioprotection effects of UDCA were similar to FTY720, S1P agonist. Furthermore, we observed that UDCA protects CMs against CoCl2 -induced [Ca2+ ]i dynamic alteration. Pharmacological inhibition of the Gαi -sensitive receptor did not abolish the cardioprotection of UDCA against CoCl2 detrimental effects, except for cell viability and [Ca2+ ]i . Pertussis toxin is partially effective in inhibiting UDCA protection against CoCl2 effects on CM cell viability. Interestingly, PTX fully inhibits UDCA cardioprotection on CoCl2 -induced [Ca2+ ]i dynamic changes. We conclude that UDCA cardioprotection against CoCl2 -induced hypoxia is similar to FTY720, and its actions are not fully mediated by the Gαi -coupled protein sensitive pathways. Ursodeoxycholic acid is the most hydrophilic bile acid and is currently used to treat liver diseases. Recently, UDCA is shown to have a cardioprotection effects; however, the mechanism of UDCA cardioprotection is still poorly understood. The current data generated were the first to show that UDCA is able to inhibit the activation of HIF-1α and p53 protein during CoCl2 -induced hypoxia in cardiomyocytes. This study provides an insight of UDCA mechanism in protecting cardiomyocytes against hypoxia.
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Affiliation(s)
- Anis Syamimi Mohamed
- Institute of Molecular Medicine and Biotechnology, Faculty of Medicine, UiTM, Sungai Buloh, Malaysia
| | - Noorul Izzati Hanafi
- Institute of Molecular Medicine and Biotechnology, Faculty of Medicine, UiTM, Sungai Buloh, Malaysia
| | - Siti Hamimah Sheikh Abdul Kadir
- Institute of Molecular Medicine and Biotechnology, Faculty of Medicine, UiTM, Sungai Buloh, Malaysia.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, UiTM, Sungai Buloh, Malaysia
| | - Julina Md Noor
- Department of Emergency and Trauma, Faculty of Medicine, UiTM, Sungai Buloh, Malaysia
| | | | - Sharaniza Ab Rahim
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, UiTM, Sungai Buloh, Malaysia
| | - Rosfaiizah Siran
- Department of Physiology, Faculty of Medicine, UiTM, Sungai Buloh, Malaysia
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36
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Affiliation(s)
- J. Fandrey
- Institut für Physiologie; Universität Duisburg-Essen; Essen Germany
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37
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Mathew SA, Chandravanshi B, Bhonde R. Hypoxia primed placental mesenchymal stem cells for wound healing. Life Sci 2017. [PMID: 28625360 DOI: 10.1016/j.lfs.2017.06.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
AIMS To investigate how Placental Mesenchymal Stem Cells (P-MSCs) would adapt themselves and survive under hypoxic conditions which are prevalent in most injury sites. MAIN METHODS P-MSCs were isolated from term placenta and characterised under normoxia and hypoxia (2-2.5% O2). Cells were examined for morphology and surface marker variations by flow cytometry analysis. Glucose stimulated insulin secretion was assayed by Insulin ELISA Kit. Gene expression levels were estimated using Real Time PCR for hypoxia inducible factor1 alpha, Insulin (INS), Glucose transporters (GLUT-1, GLUT-2 and GLUT-3), Adhesion Proteins- Integrins, Fibronectin1 (FN1), E-Cadherin (CDH1), and N-Cadherin (CDH2) and angiogenesis marker VEGFA. Immunofluorescence assay was done to confirm the presence of C-Peptide, GLUT 2, E-Cadherin and ITGB3. Adhesion was confirmed assessed on fibronectin binding. KEY FINDINGS We show that insulin secretion is not hampered under hypoxia. We found an upregulation of glucose transporters under hypoxia indicating enhanced glucose uptake needed to cater to metabolic demands of proliferating cells. Up regulation of adhesion molecules was seen under hypoxia indicative of a favoured environment for retention of cells at the injury site. We also found increased level of angiogenesis of P-MSCs under hypoxia. SIGNIFICANCE Our present study thus demonstrates for the first time that P-MSCs modulate themselves under hypoxic conditions by secreting insulin, up regulating glucose transporters and adhesion molecules and eventually exhibiting an increased angiogenic potential. We thus infer that priming P-MSCs under hypoxia, could make them more suitable for wound healing applications.
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Affiliation(s)
- Suja Ann Mathew
- School of Regenerative Medicine, Manipal University, MAHE, GKVK Post, Bellary Road, Allalasandra, Near Royal Orchid, Yelahanka, Bangalore 560 065, India
| | - Bhawna Chandravanshi
- School of Regenerative Medicine, Manipal University, MAHE, GKVK Post, Bellary Road, Allalasandra, Near Royal Orchid, Yelahanka, Bangalore 560 065, India
| | - Ramesh Bhonde
- Dr D Y Patil University, Sant Tukaram Nagar, Maharashtra, Pune 411018, India.
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Chen T, Yang C, Li M, Tan X. Alveolar Hypoxia-Induced Pulmonary Inflammation: From Local Initiation to Secondary Promotion by Activated Systemic Inflammation. J Vasc Res 2016; 53:317-329. [PMID: 27974708 DOI: 10.1159/000452800] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 10/23/2016] [Indexed: 11/19/2022] Open
Abstract
Pulmonary hypertension (PH) is a pathological condition with high mortality and morbidity. Hypoxic PH (HPH) is a common form of PH occurring mainly due to lung disease and/or hypoxia. Most causes of HPH are associated with persistent or intermittent alveolar hypoxia, including exposure to high altitude and chronic obstructive respiratory disease. Recent evidence suggests that inflammation is a critical step for HPH initiation and development. A detailed understanding of the initiation and progression of pulmonary inflammation would help in exploring potential clinical treatments for HPH. In this review, the mechanism for alveolar hypoxia-induced local lung inflammation and its progression are discussed as follows: (1) low alveolar PO2 levels activate resident lung cells, mainly the alveolar macrophages, which initiate pulmonary inflammation; (2) systemic inflammation is induced by alveolar hypoxia through alveolar macrophage activation; (3) monocytes are recruited into the pulmonary circulation by alveolar hypoxia-induced macrophage activation, which then contributes to the progression of pulmonary inflammation during the chronic phase of alveolar hypoxia, and (4) alveolar hypoxia-induced systemic inflammation contributes to the development of HPH. We hypothesize that a combination of alveolar hypoxia-induced local lung inflammation and the initiation of systemic inflammation ("second hit") is essential for HPH progression.
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Affiliation(s)
- Ting Chen
- Department of High Altitude Physiology and Biology, College of High Altitude Medicine, Third Military Medical University, Ministry of Education, Chongqing, China
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Whiteford JR, De Rossi G, Woodfin A. Mutually Supportive Mechanisms of Inflammation and Vascular Remodeling. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 326:201-78. [PMID: 27572130 DOI: 10.1016/bs.ircmb.2016.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chronic inflammation is often accompanied by angiogenesis, the development of new blood vessels from existing ones. This vascular response is a response to chronic hypoxia and/or ischemia, but is also contributory to the progression of disorders including atherosclerosis, arthritis, and tumor growth. Proinflammatory and proangiogenic mediators and signaling pathways form a complex and interrelated network in these conditions, and many factors exert multiple effects. Inflammation drives angiogenesis by direct and indirect mechanisms, promoting endothelial proliferation, migration, and vessel sprouting, but also by mediating extracellular matrix remodeling and release of sequestered growth factors, and recruitment of proangiogenic leukocyte subsets. The role of inflammation in promoting angiogenesis is well documented, but by facilitating greater infiltration of leukocytes and plasma proteins into inflamed tissues, angiogenesis can also propagate chronic inflammation. This review examines the mutually supportive relationship between angiogenesis and inflammation, and considers how these interactions might be exploited to promote resolution of chronic inflammatory or angiogenic disorders.
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Affiliation(s)
- J R Whiteford
- William Harvey Research Institute, Barts and London School of Medicine and Dentistry, Queen Mary College, University of London, London, United Kingdom
| | - G De Rossi
- William Harvey Research Institute, Barts and London School of Medicine and Dentistry, Queen Mary College, University of London, London, United Kingdom
| | - A Woodfin
- Cardiovascular Division, King's College, University of London, London, United Kingdom.
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Quaegebeur A, Segura I, Schmieder R, Verdegem D, Decimo I, Bifari F, Dresselaers T, Eelen G, Ghosh D, Davidson SM, Schoors S, Broekaert D, Cruys B, Govaerts K, De Legher C, Bouché A, Schoonjans L, Ramer MS, Hung G, Bossaert G, Cleveland DW, Himmelreich U, Voets T, Lemmens R, Bennett CF, Robberecht W, De Bock K, Dewerchin M, Ghesquière B, Fendt SM, Carmeliet P. Deletion or Inhibition of the Oxygen Sensor PHD1 Protects against Ischemic Stroke via Reprogramming of Neuronal Metabolism. Cell Metab 2016; 23:280-91. [PMID: 26774962 PMCID: PMC4880550 DOI: 10.1016/j.cmet.2015.12.007] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 10/30/2015] [Accepted: 12/11/2015] [Indexed: 01/08/2023]
Abstract
The oxygen-sensing prolyl hydroxylase domain proteins (PHDs) regulate cellular metabolism, but their role in neuronal metabolism during stroke is unknown. Here we report that PHD1 deficiency provides neuroprotection in a murine model of permanent brain ischemia. This was not due to an increased collateral vessel network. Instead, PHD1(-/-) neurons were protected against oxygen-nutrient deprivation by reprogramming glucose metabolism. Indeed, PHD1(-/-) neurons enhanced glucose flux through the oxidative pentose phosphate pathway by diverting glucose away from glycolysis. As a result, PHD1(-/-) neurons increased their redox buffering capacity to scavenge oxygen radicals in ischemia. Intracerebroventricular injection of PHD1-antisense oligonucleotides reduced the cerebral infarct size and neurological deficits following stroke. These data identify PHD1 as a regulator of neuronal metabolism and a potential therapeutic target in ischemic stroke.
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Affiliation(s)
- Annelies Quaegebeur
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Inmaculada Segura
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Roberta Schmieder
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Vesalius Research Center, VIB, Leuven, Belgium
| | - Dries Verdegem
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium; Metabolomics Expertise Center, Vesalius Research Center, VIB, Leuven, Belgium
| | - Ilaria Decimo
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Francesco Bifari
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Tom Dresselaers
- Biomedical MRI/Mosaic, Department of Imaging and Pathology, University of Leuven, Leuven, Belgium
| | - Guy Eelen
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Debapriva Ghosh
- Laboratory of Ion Channel Research and TRP channel research platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Shawn M Davidson
- Koch Institute for Integrative Cancer Research at Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Sandra Schoors
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Dorien Broekaert
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Vesalius Research Center, VIB, Leuven, Belgium
| | - Bert Cruys
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Kristof Govaerts
- Biomedical MRI/Mosaic, Department of Imaging and Pathology, University of Leuven, Leuven, Belgium
| | - Carla De Legher
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Ann Bouché
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Luc Schoonjans
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Matt S Ramer
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium; International Collaboration on Repair Discoveries, the University of British Columbia, Vancouver, Canada
| | - Gene Hung
- Isis Pharmaceuticals, Carlsbad, CA 92008, USA
| | - Goele Bossaert
- Leuven Statistics Research Centre (LStat), University of Leuven, Leuven, Belgium
| | - Don W Cleveland
- Ludwig Institute for Cancer Research, Department of Medicine and Neuroscience, University of California, San Diego, La Jolla, CA 92093, USA
| | - Uwe Himmelreich
- Biomedical MRI/Mosaic, Department of Imaging and Pathology, University of Leuven, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research and TRP channel research platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Robin Lemmens
- Laboratory of Neurobiology, Vesalius Research Center, VIB, Leuven, Belgium; Experimental Neurology (Department of Neurosciences) and Leuven Research Institute for Neuroscience and Disease (LIND), University of Leuven, Leuven, Belgium; Neurology, University Hospitals Leuven, Leuven, Belgium
| | | | - Wim Robberecht
- Laboratory of Neurobiology, Vesalius Research Center, VIB, Leuven, Belgium; Experimental Neurology (Department of Neurosciences) and Leuven Research Institute for Neuroscience and Disease (LIND), University of Leuven, Leuven, Belgium; Neurology, University Hospitals Leuven, Leuven, Belgium
| | - Katrien De Bock
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Mieke Dewerchin
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium
| | - Bart Ghesquière
- Metabolomics Expertise Center, Vesalius Research Center, VIB, Leuven, Belgium
| | - Sarah-Maria Fendt
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Cellular Metabolism and Metabolic Regulation, Vesalius Research Center, VIB, Leuven, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Neurovascular link, Department of Oncology, University of Leuven, Leuven, Belgium; Laboratory of Angiogenesis and Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium.
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Lewis DM, Abaci HE, Xu Y, Gerecht S. Endothelial progenitor cell recruitment in a microfluidic vascular model. Biofabrication 2015; 7:045010. [PMID: 26693599 DOI: 10.1088/1758-5090/7/4/045010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
During vessel injury, endothelial progenitors cells (EPCs) are recruited from bone marrow and directed to the hypoxic injury site. The hypoxic conditions in the damaged blood vessel promote TNF-α, which upregulates intercellular adhesion molecule-1 (ICAM-1). EPCs attach to endothelial cell lining using ICAM-1. Here we aimed to examine EPC attachment to ECs in an injured-blood vessel conditions. We first determined ICAM-1 expression in stimulated HUVECs. We stimulated HUVECs with 21% oxygen (atmospheric), atmospheric with TNF-α-supplemented media, 1% oxygen (hypoxia), and hypoxia with TNF-α-supplemented media and found the highest ECFC attachment on HUVECs stimulated with TNF-α and hypoxia, correlating with the highest ICAM-1 expression. We next designed, fabricated and tested a three-dimensional microbioreactor (3D MBR) system with precise control and monitoring of dissolve oxygen and media flow rate in the cellular environment. We utilized a step-wise seeding approach, producing monolayer of HUVECs on all four walls. When stimulated with both TNF-α and hypoxia, ECFC retention on HUVECs was significantly increased under low shear stress compared to static controls. Overall, the 3D MBR system mimics the pathological oxygen tension and shear stress in the damaged vasculature, providing a platform to model vascular-related disorders.
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Affiliation(s)
- Daniel M Lewis
- Department of Chemical and Biomolecular Engineering, Johns Hopkins Physical Sciences Oncology Center and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
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Wu J, Hafner C, Schramel JP, Kaun C, Krychtiuk KA, Wojta J, Boehme S, Ullrich R, Tretter EV, Markstaller K, Klein KU. Cyclic and constant hyperoxia cause inflammation, apoptosis and cell death in human umbilical vein endothelial cells. Acta Anaesthesiol Scand 2015; 60:492-501. [PMID: 26489399 DOI: 10.1111/aas.12646] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/02/2015] [Accepted: 09/09/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND Perioperative high-dose oxygen (O2 ) exposure can cause hyperoxia. While the effect of constant hyperoxia on the vascular endothelium has been investigated to some extent, the impact of cyclic hyperoxia largely remains unknown. We hypothesized that cyclic hyperoxia would induce more injury than constant hyperoxia to human umbilical vein endothelial cells (HUVECs). METHODS HUVECs were exposed to cyclic hyperoxia (5-95% O2 ) or constant hyperoxia (95% O2 ), normoxia (21% O2 ), and hypoxia (5% O2 ). Cell growth, viability (Annexin V/propidium iodide and 3-(4,5-dimethythiazol-2-yl)-2,5-diphenyl tetrazolium bromide, MTT) lactate dehydrogenase (LDH), release, cytokine (interleukin, IL and macrophage migration inhibitory factor, MIF) release, total antioxidant capacity (TAC), and superoxide dismutase activity (SOD) of cell lysate were assessed at baseline and 8, 24, and 72 h. A signal transduction pathway finder array for gene expression analysis was performed after 8 h. RESULTS Constant and cyclic hyperoxia-induced gradually detrimental effects on HUVECs. After 72 h, constant or cyclic hyperoxia exposure induced change in cytotoxic (LDH +12%, P = 0.026; apoptosis +121/61%, P < 0.01; alive cells -15%, P < 0.01; MTT -16/15%, P < 0.01), inflammatory (IL-6 +142/190%, P < 0.01; IL-8 +72/43%, P < 0.01; MIF +147/93%, P < 0.01), or redox-sensitive (SOD +278%, TAC-25% P < 0.01) markers. Gene expression analysis revealed that constant and cyclic hyperoxia exposure differently activates oxidative stress, nuclear factor kappa B, Notch, and peroxisome proliferator-activated receptor pathways. CONCLUSIONS Extreme hyperoxia exposure induces inflammation, apoptosis and cell death in HUVECs. Although our findings cannot be transferred to clinical settings, results suggest that hyperoxia exposure may cause vascular injury that could play a role in determining perioperative outcome.
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Affiliation(s)
- J. Wu
- Department of Anaesthesia; General Intensive Care and Pain Management; Medical University of Vienna; Vienna Austria
- Department of Anesthesiology; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - C. Hafner
- Department of Anaesthesia; General Intensive Care and Pain Management; Medical University of Vienna; Vienna Austria
| | - J. P. Schramel
- Unit of Anaesthesiology and Perioperative Intensive Care; University of Veterinary Medicine; Vienna Austria
| | - C. Kaun
- Department of Internal Medicine II; Medical University Vienna; Vienna Austria
- Core Facilities; Medical University of Vienna; Vienna Austria
| | - K. A. Krychtiuk
- Department of Internal Medicine II; Medical University Vienna; Vienna Austria
- Ludwig Boltzmann Cluster for Cardiovascular Research; Vienna Austria
| | - J. Wojta
- Department of Internal Medicine II; Medical University Vienna; Vienna Austria
- Core Facilities; Medical University of Vienna; Vienna Austria
- Ludwig Boltzmann Cluster for Cardiovascular Research; Vienna Austria
| | - S. Boehme
- Department of Anaesthesia; General Intensive Care and Pain Management; Medical University of Vienna; Vienna Austria
| | - R. Ullrich
- Department of Anaesthesia; General Intensive Care and Pain Management; Medical University of Vienna; Vienna Austria
| | - E. V. Tretter
- Department of Anaesthesia; General Intensive Care and Pain Management; Medical University of Vienna; Vienna Austria
| | - K. Markstaller
- Department of Anaesthesia; General Intensive Care and Pain Management; Medical University of Vienna; Vienna Austria
| | - K. U. Klein
- Department of Anaesthesia; General Intensive Care and Pain Management; Medical University of Vienna; Vienna Austria
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Short-term heat pre-treatment modulates the release of HMGB1 and pro-inflammatory cytokines in hPDL cells following mechanical loading and affects monocyte behavior. Clin Oral Investig 2015; 20:923-31. [PMID: 26358476 DOI: 10.1007/s00784-015-1580-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 08/26/2015] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Heat shock proteins (HSP) act as cell-protective molecules that are upregulated upon thermal insult, hypoxia, and ischemia. Such ischemic conditions can be found during tissue remodeling associated with orthodontic tooth movement or trauma when compression forces lead to cell necrosis and subsequent clearance of cellular debris by immune competent cells. Host immune overreaction can result in undesired side effects such as tooth root resorption. Here, we analyzed whether heat pre-treatment would affect the initially catabolic host immune response induced by mechanical loading of human periodontal ligament (hPDL) cells, which represent major constituents of the tooth supporting apparatus involved in the regulation of periodontal remodeling. MATERIALS AND METHODS Fifth passage hPDL cells were exposed to an elevated temperature of 43° for 1 h prior to mechanical loading. Cell morphology, high mobility group box protein 1 (HMGB1), interleukin (IL)-6, and IL-8 expression were analyzed microscopically and by ELISA. The physiological relevance for monocyte behavior was tested in monocyte adhesion and osteoclast differentiation assays. RESULTS Short-term heat pre-treatment did not show any visible effect on hPDL cell morphology, but resulted in a significant downregulation of pro-inflammatory cytokines when being additionally loaded mechanically. Supernatants of heat-exposed hPDL cell cultures demonstrated a reduced impact on monocyte adhesion and osteoclastic differentiation. CONCLUSIONS Heat pre-treatment of hPDL cells induces cell-protective mechanisms towards mechanical stress and favors the reduction of cell stress associated effects on monocyte/macrophage physiology. CLINICAL RELEVANCE These data present the induction of heat shock proteins as a promising treatment option to limit undesired side effects of periodontal remodeling.
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Koizume S, Ito S, Nakamura Y, Yoshihara M, Furuya M, Yamada R, Miyagi E, Hirahara F, Takano Y, Miyagi Y. Lipid starvation and hypoxia synergistically activate ICAM1 and multiple genes in an Sp1-dependent manner to promote the growth of ovarian cancer. Mol Cancer 2015; 14:77. [PMID: 25879517 PMCID: PMC4396815 DOI: 10.1186/s12943-015-0351-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/23/2015] [Indexed: 12/28/2022] Open
Abstract
Background Elucidation of the molecular mechanisms by which cancer cells overcome hypoxia is potentially important for targeted therapy. Complexation of hypoxia-inducible factors (HIFs) with aryl hydrocarbon receptor nuclear translocators can enhance gene expression and initiate cellular responses to hypoxia. However, multiple molecular mechanisms may be required for cancer cells to adapt to diverse microenvironments. We previously demonstrated that a physical interaction between the ubiquitously expressed transcription factor Sp1 and HIF2 is a major cause of FVII gene activation in poor prognostic ovarian clear cell carcinoma (CCC) cells under hypoxia. Furthermore, it was found that FVII activation is synergistically enhanced when serum-starved cells are cultured under hypoxic conditions. In this study, we investigated whether HIFs and transcription factor Sp1 cooperate to activate multiple genes in CCC cells under conditions of serum starvation and hypoxia (SSH) and then contribute to malignant phenotypes. Methods To identify genes activated under hypoxic conditions in an Sp1-dependent manner, we first performed cDNA microarray analyses. We further investigated the molecular mechanisms of synergistic gene activations including the associated serum factors by various experiments such as real-time RT-PCR, western blotting and chromatin immunoprecipitation. The study was further extended to animal experiments to investigate how it contributes to CCC progression in vivo. Results ICAM1 is one such gene dramatically induced by SSH and is highly induced by SSH and its synergistic activation involves both the mTOR and autonomously activated TNFα-NFκB axes. We identified long chain fatty acids (LCFA) as a major class of lipids that is associated with albumin, a serum factor responsible for synergistic gene activation under SSH. Furthermore, we found that ICAM1 can be induced in vivo to promote tumor growth. Conclusion Sp1 and HIFs collaborate to activate genes required for the adaptation of CCC cells to severe microenvironments, such as LCFA starvation and hypoxia. This study highlights the importance of transcriptional regulation under lipid starvation and hypoxia in the promotion of CCC tumor growth. Electronic supplementary material The online version of this article (doi:10.1186/s12943-015-0351-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shiro Koizume
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
| | - Shin Ito
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
| | - Yoshiyasu Nakamura
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
| | - Mitsuyo Yoshihara
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
| | - Mitsuko Furuya
- Departments of Pathology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
| | - Roppei Yamada
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
| | - Etsuko Miyagi
- Obstetrics, Gynecology and Molecular Reproductive Science, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
| | - Fumiki Hirahara
- Obstetrics, Gynecology and Molecular Reproductive Science, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
| | - Yasuo Takano
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
| | - Yohei Miyagi
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
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Gölz L, Memmert S, Rath-Deschner B, Jäger A, Appel T, Baumgarten G, Götz W, Frede S. Hypoxia and P. gingivalis synergistically induce HIF-1 and NF-κB activation in PDL cells and periodontal diseases. Mediators Inflamm 2015; 2015:438085. [PMID: 25861162 PMCID: PMC4377543 DOI: 10.1155/2015/438085] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 02/08/2015] [Indexed: 02/06/2023] Open
Abstract
Periodontitis is characterized by deep periodontal pockets favoring the proliferation of anaerobic bacteria like Porphyromonas gingivalis (P. gingivalis), a periodontal pathogen frequently observed in patients suffering from periodontal inflammation. Therefore, the aim of the present study was to investigate the signaling pathways activated by lipopolysaccharide (LPS) of P. gingivalis (LPS-PG) and hypoxia in periodontal ligament (PDL) cells. The relevant transcription factors nuclear factor-kappa B (NF-κB) and hypoxia inducible factor-1 (HIF-1) were determined. In addition, we analyzed the expression of interleukin- (IL-) 1β, matrix metalloproteinase-1 (MMP-1), and vascular endothelial growth factor (VEGF) in PDL cells on mRNA and protein level. This was accomplished by immunohistochemistry of healthy and inflamed periodontal tissues. We detected time-dependent additive effects of LPS-PG and hypoxia on NF-κB and HIF-1α activation in PDL cells followed by an upregulation of IL-1β, MMP-1, and VEGF expression. Immunohistochemistry performed on tissue samples of gingivitis and periodontitis displayed an increase of NF-κB, HIF-1, and VEGF immunoreactivity in accordance with disease progression validating the importance of the in vitro results. To conclude, the present study underlines the significance of NF-κB and HIF-1α and their target genes VEGF, IL-1β, and MMP-1 in P. gingivalis and hypoxia induced periodontal inflammatory processes.
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Affiliation(s)
- L. Gölz
- Department of Orthodontics, Dental Clinic, University Hospital of Bonn, Welschnonnenstraße 17, 53111 Bonn, Germany
| | - S. Memmert
- Department of Orthodontics, Dental Clinic, University Hospital of Bonn, Welschnonnenstraße 17, 53111 Bonn, Germany
| | - B. Rath-Deschner
- Department of Orthodontics, Dental Clinic, University Hospital of Bonn, Welschnonnenstraße 17, 53111 Bonn, Germany
| | - A. Jäger
- Department of Orthodontics, Dental Clinic, University Hospital of Bonn, Welschnonnenstraße 17, 53111 Bonn, Germany
| | - T. Appel
- Center of Dento-Maxillo-Facial Medicine, University Hospital of Bonn, Sigmund-Freud-Straße 25, 53105 Bonn, Germany
| | - G. Baumgarten
- Clinic of Anesthesiology and Intensive Care Medicine, University Hospital of Bonn, Welschnonnenstraße 17, 53111 Bonn, Germany
| | - W. Götz
- Department of Orthodontics, Dental Clinic, University Hospital of Bonn, Welschnonnenstraße 17, 53111 Bonn, Germany
| | - S. Frede
- Clinic of Anesthesiology and Intensive Care Medicine, University Hospital of Bonn, Welschnonnenstraße 17, 53111 Bonn, Germany
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Mooster JL, Le Bras S, Massaad MJ, Jabara H, Yoon J, Galand C, Heesters BA, Burton OT, Mattoo H, Manis J, Geha RS. Defective lymphoid organogenesis underlies the immune deficiency caused by a heterozygous S32I mutation in IκBα. ACTA ACUST UNITED AC 2015; 212:185-202. [PMID: 25601653 PMCID: PMC4322042 DOI: 10.1084/jem.20140979] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Mooster et al. created a knock-in mouse harboring a mutation (S32I) in IκBα that has been identified in a patient with ectodermal dysplasia with immunodeficiency. The mice are characterized by defective architectural cell function; they lack lymph nodes, Peyer’s patches, splenic marginal zones, and follicular DCs and fail to develop germinal centers. These features have not been previously recognized in patients. Patients with ectodermal dysplasia with immunodeficiency (ED-ID) caused by mutations in the inhibitor of NF-κB α (IκBα) are susceptible to severe recurrent infections, despite normal T and B cell numbers and intact in vitro lymphocyte function. Moreover, the outcome of hematopoietic stem cell transplantation (HSCT) in these patients is poor despite good engraftment. Mice heterozygous for the IκBα S32I mutation found in patients exhibited typical features of ED-ID. Strikingly, the mice lacked lymph nodes, Peyer’s patches, splenic marginal zones, and follicular dendritic cells and failed to develop contact hypersensitivity (CHS) or form germinal centers (GCs), all features not previously recognized in patients and typical of defective noncanonical NF-κB signaling. Lymphotoxin β receptor (LTβR)–driven induction of chemokines and adhesion molecules mediated by both canonical and noncanonical NF-κB pathways was impaired, and levels of p100 were markedly diminished in the mutant. IκBα mutant→Rag2−/−, but not WT→IκBα mutant, bone marrow chimeras formed proper lymphoid organs and developed CHS and GCs. Defective architectural cell function explains the immunodeficiency and poor outcome of HSCT in patients with IκBα deficiency and suggests that correction of this niche is critical for reconstituting their immune function.
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Affiliation(s)
- Jana L Mooster
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Severine Le Bras
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Michel J Massaad
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Haifa Jabara
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Juhan Yoon
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Claire Galand
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Balthasar A Heesters
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, Netherlands
| | - Oliver T Burton
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Hamid Mattoo
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA 02114
| | - John Manis
- Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Raif S Geha
- Division of Allergy and Immunology and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115 Department of Pediatrics, Division of Transfusion Medicine, and Department of Pathology, Harvard Medical School, Boston, MA 02115
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Myeloid knockout of HIF-1 α does not markedly affect hemorrhage/resuscitation-induced inflammation and hepatic injury. Mediators Inflamm 2014; 2014:930419. [PMID: 24991092 PMCID: PMC4058797 DOI: 10.1155/2014/930419] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Hypoxia-inducible factor-1 α (HIF-1 α ) and NF- κ B play important roles in the inflammatory response after hemorrhagic shock and resuscitation (H/R). Here, the role of myeloid HIF-1 α in liver hypoxia, injury, and inflammation after H/R with special regard to NF- κ B activation was studied. METHODS Mice with a conditional HIF-1 α knockout (KO) in myeloid cell-line and wild-type (WT) controls were hemorrhaged for 90 min (30 ± 2 mm Hg) and resuscitated. Controls underwent only surgical procedures. RESULTS After six hours, H/R enhanced the expression of HIF-1 α -induced genes vascular endothelial growth factor (VEGF) and adrenomedullin (ADM). In KO mice, this was not observed. H/R-induced liver injury in HIF-1 α KO was comparable to WT. Elevated plasma interleukin-6 (IL-6) levels after H/R were not reduced by HIF-1 α KO. Local hepatic hypoxia was not significantly reduced in HIF-1 α KO compared to controls after H/R. H/R-induced NF- κB phosphorylation in liver did not significantly differ between WT and KO. CONCLUSIONS Here, deleting HIF-1 α in myeloid cells and thereby in Kupffer cells was not protective after H/R. This data indicates that other factors, such as NF- κB, due to its upregulated phosphorylation in WT and KO mice, contrary to HIF-1 α, are rather key modulators of inflammation after H/R in our model.
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Kapitsinou PP, Sano H, Michael M, Kobayashi H, Davidoff O, Bian A, Yao B, Zhang MZ, Harris RC, Duffy KJ, Erickson-Miller CL, Sutton TA, Haase VH. Endothelial HIF-2 mediates protection and recovery from ischemic kidney injury. J Clin Invest 2014; 124:2396-409. [PMID: 24789906 DOI: 10.1172/jci69073] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The hypoxia-inducible transcription factors HIF-1 and HIF-2 mediate key cellular adaptions to hypoxia and contribute to renal homeostasis and pathophysiology; however, little is known about the cell type-specific functions of HIF-1 and HIF-2 in response to ischemic kidney injury. Here, we used a genetic approach to specifically dissect the roles of endothelial HIF-1 and HIF-2 in murine models of hypoxic kidney injury induced by ischemia reperfusion or ureteral obstruction. In both models, inactivation of endothelial HIF increased injury-associated renal inflammation and fibrosis. Specifically, inactivation of endothelial HIF-2α, but not endothelial HIF-1α, resulted in increased expression of renal injury markers and inflammatory cell infiltration in the postischemic kidney, which was reversed by blockade of vascular cell adhesion molecule-1 (VCAM1) and very late antigen-4 (VLA4) using monoclonal antibodies. In contrast, pharmacologic or genetic activation of HIF via HIF prolyl-hydroxylase inhibition protected wild-type animals from ischemic kidney injury and inflammation; however, these same protective effects were not observed in HIF prolyl-hydroxylase inhibitor-treated animals lacking endothelial HIF-2. Taken together, our data indicate that endothelial HIF-2 protects from hypoxia-induced renal damage and represents a potential therapeutic target for renoprotection and prevention of fibrosis following acute ischemic injury.
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Ramakrishnan S, Anand V, Roy S. Vascular endothelial growth factor signaling in hypoxia and inflammation. J Neuroimmune Pharmacol 2014; 9:142-60. [PMID: 24610033 PMCID: PMC4048289 DOI: 10.1007/s11481-014-9531-7] [Citation(s) in RCA: 231] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 02/11/2014] [Indexed: 12/22/2022]
Abstract
Infection, cancer and cardiovascular diseases are the major causes for morbidity and mortality in the United States according to the Center for Disease Control. The underlying etiology that contributes to the severity of these diseases is either hypoxia induced inflammation or inflammation resulting in hypoxia. Therefore, molecular mechanisms that regulate hypoxia-induced adaptive responses in cells are important areas of investigation. Oxygen availability is sensed by molecular switches which regulate synthesis and secretion of growth factors and inflammatory mediators. As a consequence, tissue microenvironment is altered by re-programming metabolic pathways, angiogenesis, vascular permeability, pH homeostasis to facilitate tissue remodeling. Hypoxia inducible factor (HIF) is the central mediator of hypoxic response. HIF regulates several hundred genes and vascular endothelial growth factor (VEGF) is one of the primary target genes. Understanding the regulation of HIF and its influence on inflammatory response offers unique opportunities for drug development to modulate inflammation and ischemia in pathological conditions.
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Affiliation(s)
- S Ramakrishnan
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, 55455, USA,
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He P, Srikrishna G, Freeze HH. N-glycosylation deficiency reduces ICAM-1 induction and impairs inflammatory response. Glycobiology 2014; 24:392-8. [PMID: 24474243 DOI: 10.1093/glycob/cwu006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Congenital disorders of glycosylation (CDGs) result from mutations in various N-glycosylation genes. The most common type, phosphomannomutase-2 (PMM2)-CDG (CDG-Ia), is due to deficient PMM2 (Man-6-P → Man-1-P). Many patients die from recurrent infections, but the mechanism is unknown. We found that glycosylation-deficient patient fibroblasts have less intercellular adhesion molecule-1 (ICAM-1), and because of its role in innate immune response, we hypothesized that its reduction might help explain recurrent infections in CDG patients. We, therefore, studied mice with mutations in Mpi encoding phosphomannose isomerase (Fru-6-P → Man-6-P), the cause of human MPI-CDG. We challenged MPI-deficient mice with an intraperitoneal injection of zymosan to induce an inflammatory response and found decreased neutrophil extravasation compared with control mice. Immunohistochemistry of mesenteries showed attenuated neutrophil egress, presumably due to poor ICAM-1 response to acute peritonitis. Since phosphomannose isomerase (MPI)-CDG patients and their cells improve glycosylation when given mannose, we provided MPI-deficient mice with mannose-supplemented water for 7 days. This restored ICAM-1 expression on mesenteric endothelial cells and enhanced transendothelial migration of neutrophils during acute inflammation. Attenuated inflammatory response in glycosylation-deficient mice may result from a failure to increase ICAM-1 on the vascular endothelial surface and may help explain recurrent infections in patients.
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Affiliation(s)
- Ping He
- Genetic Disease Program, Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
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