1
|
Jin SH, Lee EM, Park JB, Ko Y. Decreased GCF DEL-1 and increased GCF neutrophils with increasing probing pocket depth. J Periodontal Implant Sci 2024; 54:85-95. [PMID: 37681356 PMCID: PMC11065539 DOI: 10.5051/jpis.2301120056] [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: 12/15/2022] [Revised: 05/30/2023] [Accepted: 06/04/2023] [Indexed: 09/09/2023] Open
Abstract
PURPOSE Developmental endothelial locus-1 (DEL-1) plays a role in regulating neutrophil migration within the periodontium. The objective of this study was to evaluate the levels of DEL-1 in saliva and gingival crevicular fluid (GCF), as well as the number of neutrophils in patients with periodontitis. METHODS Forty systemically healthy, non-smoking periodontitis patients participated in this study. Clinical periodontal parameters, including the plaque index, probing pocket depth (PPD), clinical attachment level, bleeding on probing, modified sulcular bleeding index, and marginal bone level, were measured. Levels of DEL-1, interleukin (IL)-1β, IL-6, and IL-8 in unstimulated saliva samples, as well as DEL-1 in the GCF of 3 teeth from each participant, were assessed. Neutrophil counts in oral rinse and GCF samples were recorded. Spearman correlation coefficients were used to examine the correlation between protein levels, clinical parameters, and neutrophil quantities. Participants were divided into 2 age groups (those under 50 years and those 50 years or older) in order to investigate potential age-related differences. RESULTS DEL-1 levels in the GCF showed a negative relationship with PPD (sum). Neutrophils in oral rinse samples were positively correlated with PPD, IL-8, and IL-1β levels. Neutrophils in GCF exhibited a positive correlation with PPD (sum). Salivary DEL-1 levels showed correlations with IL-8 and IL-1β, but not with the clinical parameters of periodontitis. CONCLUSIONS The negative relationship observed between PPD and GCF DEL-1 levels is consistent with the proposed protective role of DEL-1.
Collapse
Affiliation(s)
- Seong-Ho Jin
- Department of Dentistry, Graduate School, The Catholic University of Korea, Seoul, Korea
| | - Eun-Mi Lee
- Department of Periodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jun-Beom Park
- Department of Dentistry, Graduate School, The Catholic University of Korea, Seoul, Korea
- Department of Periodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Youngkyung Ko
- Department of Dentistry, Graduate School, The Catholic University of Korea, Seoul, Korea
- Department of Periodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
| |
Collapse
|
2
|
Kang Y, Kim D, Lee S, Kim H, Kim T, Cho JA, Lee T, Choi EY. Innate Immune Training Initiates Efferocytosis to Protect against Lung Injury. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308978. [PMID: 38279580 PMCID: PMC11005705 DOI: 10.1002/advs.202308978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Indexed: 01/28/2024]
Abstract
Innate immune training involves myelopoiesis, dynamic gene modulation, and functional reprogramming of myeloid cells in response to secondary heterologous challenges. The present study evaluates whether systemic innate immune training can protect tissues from local injury. Systemic pretreatment of mice with β-glucan, a trained immunity agonist, reduces the mortality rate of mice with bleomycin-induced lung injury and fibrosis, as well as decreasing collagen deposition in the lungs. β-Glucan pretreatment induces neutrophil accumulation in the lungs and enhances efferocytosis. Training of mice with β-glucan results in histone modification in both alveolar macrophages (AMs) and neighboring lung epithelial cells. Training also increases the production of RvD1 and soluble mediators by AMs and efferocytes. Efferocytosis increases trained immunity in AMs by stimulating RvD1 release, thus inducing SIRT1 expression in neighboring lung epithelial cells. Elevated epithelial SIRT1 expression is associated with decreased epithelial cell apoptosis after lung injury, attenuating tissue damage. Further, neutrophil depletion dampens the effects of β-glucan on macrophage accumulation, epigenetic modification in lung macrophages, epithelial SIRT1 expression, and injury-mediated fibrosis in the lung. These findings provide mechanistic insights into innate immune training and clues to the potential ability of centrally trained immunity to protect peripheral organs against injury-mediated disorders.
Collapse
Affiliation(s)
- Yoon‐Young Kang
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Department of MicrobiologyUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Dong‐Young Kim
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Present address:
Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität Dresden01307DresdenGermany
| | - Sang‐Yong Lee
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Department of MicrobiologyUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Hee‐Joong Kim
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Department of MicrobiologyUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Taehawn Kim
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Jeong A. Cho
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Taewon Lee
- Division of Applied Mathematical SciencesCollege of Science and TechnologyKorea UniversitySejong30019Republic of Korea
| | - Eun Young Choi
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Department of MicrobiologyUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| |
Collapse
|
3
|
Ivraghi MS, Zamanian MY, Gupta R, Achmad H, Alsaab HO, Hjazi A, Romero‐Parra RM, Alwaily ER, Hussien BM, Hakimizadeh E. Neuroprotective effects of gemfibrozil in neurological disorders: Focus on inflammation and molecular mechanisms. CNS Neurosci Ther 2024; 30:e14473. [PMID: 37904726 PMCID: PMC10916451 DOI: 10.1111/cns.14473] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/15/2023] [Accepted: 09/03/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Gemfibrozil (Gem) is a drug that has been shown to activate PPAR-α, a nuclear receptor that plays a key role in regulating lipid metabolism. Gem is used to lower the levels of triglycerides and reduce the risk of coronary heart disease in patients. Experimental studies in vitro and in vivo have shown that Gem can prevent or slow the progression of neurological disorders (NDs), including cerebral ischemia (CI), Alzheimer's disease (AD), Parkinson's disease (PD), and multiple sclerosis (MS). Neuroinflammation is known to play a significant role in these disorders. METHOD The literature review for this study was conducted by searching Scopus, Science Direct, PubMed, and Google Scholar databases. RESULT The results of this study show that Gem has neuroprotective effects through several cellular and molecular mechanisms such as: (1) Gem has the ability to upregulate pro-survival factors (PGC-1α and TFAM), promoting the survival and function of mitochondria in the brain, (2) Gem strongly inhibits the activation of NF-κB, AP-1, and C/EBPβ in cytokine-stimulated astroglial cells, which are known to increase the expression of iNOS and the production of NO in response to proinflammatory cytokines, (3) Gem protects dopamine neurons in the MPTP mouse model of PD by increasing the expression of PPARα, which in turn stimulates the production of GDNF in astrocytes, (4) Gem reduces amyloid plaque pathology, reduces the activity of glial cells, and improves memory, (5) Gem increases myelin genes expression (MBP and CNPase) via PPAR-β, and (6) Gem increases hippocampal BDNF to counteract depression. CONCLUSION According to the study, Gem was investigated for its potential therapeutic effect in NDs. Further research is needed to fully understand the therapeutic potential of Gem in NDs.
Collapse
Affiliation(s)
| | - Mohammad Yasin Zamanian
- Neurophysiology Research CenterHamadan University of Medical SciencesHamadanIran
- Department of Pharmacology and Toxicology, School of PharmacyHamadan University of Medical SciencesHamadanIran
| | - Reena Gupta
- Institute of Pharmaceutical Research, GLA UniversityMathuraIndia
| | - Harun Achmad
- Department of Pediatric Dentistry, Faculty of DentistryHasanuddin UniversityMakassarIndonesia
| | - Hashem O. Alsaab
- Pharmaceutics and Pharmaceutical TechnologyTaif UniversityTaifSaudi Arabia
| | - Ahmed Hjazi
- Department of Medical Laboratory SciencesCollege of Applied Medical Sciences, Prince Sattam bin Abdulaziz UniversityAl‐KharjSaudi Arabia
| | | | - Enas R. Alwaily
- Microbiology Research GroupCollege of Pharmacy, Al‐Ayen UniversityThi‐QarIraq
| | - Beneen M. Hussien
- Medical Laboratory Technology DepartmentCollege of Medical Technology, The Islamic UniversityNajafIraq
| | - Elham Hakimizadeh
- Physiology‐Pharmacology Research CenterResearch Institute of Basic Medical Sciences, Rafsanjan University of Medical SciencesRafsanjanIran
| |
Collapse
|
4
|
Vergadi E, Kolliniati O, Lapi I, Ieronymaki E, Lyroni K, Alexaki VI, Diamantaki E, Vaporidi K, Hatzidaki E, Papadaki HA, Galanakis E, Hajishengallis G, Chavakis T, Tsatsanis C. An IL-10/DEL-1 axis supports granulopoiesis and survival from sepsis in early life. Nat Commun 2024; 15:680. [PMID: 38263289 PMCID: PMC10805706 DOI: 10.1038/s41467-023-44178-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/03/2023] [Indexed: 01/25/2024] Open
Abstract
The limited reserves of neutrophils are implicated in the susceptibility to infection in neonates, however the regulation of neutrophil kinetics in infections in early life remains poorly understood. Here we show that the developmental endothelial locus (DEL-1) is elevated in neonates and is critical for survival from neonatal polymicrobial sepsis, by supporting emergency granulopoiesis. Septic DEL-1 deficient neonate mice display low numbers of myeloid-biased multipotent and granulocyte-macrophage progenitors in the bone marrow, resulting in neutropenia, exaggerated bacteremia, and increased mortality; defects that are rescued by DEL-1 administration. A high IL-10/IL-17A ratio, observed in newborn sepsis, sustains tissue DEL-1 expression, as IL-10 upregulates while IL-17 downregulates DEL-1. Consistently, serum DEL-1 and blood neutrophils are elevated in septic adult and neonate patients with high serum IL-10/IL-17A ratio, and mortality is lower in septic patients with high serum DEL-1. Therefore, IL-10/DEL-1 axis supports emergency granulopoiesis, prevents neutropenia and promotes sepsis survival in early life.
Collapse
Affiliation(s)
- Eleni Vergadi
- Department of Paediatrics, School of Medicine, University of Crete, Heraklion, Greece.
- Institute of Molecular Biology and Biotechnology, IMMB, FORTH, Heraklion, Greece.
| | - Ourania Kolliniati
- Institute of Molecular Biology and Biotechnology, IMMB, FORTH, Heraklion, Greece
- Department of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Greece
| | - Ioanna Lapi
- Institute of Molecular Biology and Biotechnology, IMMB, FORTH, Heraklion, Greece
- Department of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Greece
| | - Eleftheria Ieronymaki
- Institute of Molecular Biology and Biotechnology, IMMB, FORTH, Heraklion, Greece
- Department of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Greece
| | - Konstantina Lyroni
- Institute of Molecular Biology and Biotechnology, IMMB, FORTH, Heraklion, Greece
- Department of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Greece
| | - Vasileia Ismini Alexaki
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Eleni Diamantaki
- Department of Intensive Care Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Katerina Vaporidi
- Department of Intensive Care Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Eleftheria Hatzidaki
- Department of Neonatology/Neonatal Intensive Care Unit, School of Medicine, University of Crete, Heraklion, Greece
| | - Helen A Papadaki
- Department of Hematology, School of Medicine, University of Crete, Heraklion, Greece
| | - Emmanouil Galanakis
- Department of Paediatrics, School of Medicine, University of Crete, Heraklion, Greece
| | - George Hajishengallis
- Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Christos Tsatsanis
- Institute of Molecular Biology and Biotechnology, IMMB, FORTH, Heraklion, Greece
- Department of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Greece
| |
Collapse
|
5
|
Zhao M, Zheng Z, Yin Z, Zhang J, Peng S, Liu J, Pan W, Wei C, Xu Y, Qin JJ, Wan J, Wang M. DEL-1 deficiency aggravates pressure overload-induced heart failure by promoting neutrophil infiltration and neutrophil extracellular traps formation. Biochem Pharmacol 2023; 218:115912. [PMID: 37956894 DOI: 10.1016/j.bcp.2023.115912] [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: 07/18/2023] [Revised: 11/01/2023] [Accepted: 11/06/2023] [Indexed: 11/21/2023]
Abstract
Recent studies have shown that neutrophils play an important role in the development and progression of heart failure. Developmental endothelial locus-1 (DEL-1) is an anti-inflammatory glycoprotein that has been found to have protective effects in various cardiovascular diseases. However, the role of DEL-1 in chronic heart failure is not well understood. In a mouse model of pressure overload-induced non-ischemic cardiac failure, we found that neutrophil infiltration in the heart increased and DEL-1 levels decreased in the early stages of heart failure. DEL-1 deficiency worsened pressure overload-induced cardiac dysfunction and remodeling in mice. Mechanistically, DEL-1 deficiency promotes neutrophil infiltration and the formation of neutrophil extracellular traps (NETs) through the regulation of P38 signaling. In vitro experiments showed that DEL-1 can inhibit P38 signaling and NETs formation in mouse neutrophils in a MAC-1-dependent manner. Depleting neutrophils, inhibiting NETs formation, and inhibiting P38 signaling all reduced the exacerbation of heart failure caused by DEL-1 deletion. Overall, our findings suggest that DEL-1 deficiency worsens pressure overload-induced heart failure by promoting neutrophil infiltration and NETs formation.
Collapse
Affiliation(s)
- Mengmeng Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Zihui Zheng
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Zheng Yin
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jishou Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Shanshan Peng
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jianfang Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Wei Pan
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Cheng Wei
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yao Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Juan-Juan Qin
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Center for Healthy Aging, Wuhan University School of Nursing, Wuhan, China.
| | - Jun Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China.
| | - Menglong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan, China; Hubei Key Laboratory of Cardiology, Wuhan, China; Center for Healthy Aging, Wuhan University School of Nursing, Wuhan, China.
| |
Collapse
|
6
|
Romanidou G, Konstantinidis TG, Natsi AM, Kantartzi K, Panopoulou M, Kontomanolis E, Tsigalou C, Lambropoulou M, Gavriilaki E, Panagoutsos S, Pasadakis P, Mitroulis I. Decreased Levels of Soluble Developmental Endothelial Locus-1 Are Associated with Thrombotic Microangiopathy in Pregnancy. Int J Mol Sci 2023; 24:11762. [PMID: 37511523 PMCID: PMC10380227 DOI: 10.3390/ijms241411762] [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: 06/26/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
HELLP (Hemolysis, Elevated Liver enzymes and Low Platelets) syndrome is a life-threatening complication of pregnancy, which is often secondary to preeclampsia. To date, there is no biomarker in clinical use for the early stratification of women with preeclampsia who are under increased risk of HELLP syndrome. Herein, we show that the levels of circulating developmental endothelial locus-1 (DEL-1), which is an extracellular immunomodulatory protein, are decreased in patients with HELLP syndrome compared to preeclampsia. DEL-1 levels are also negatively correlated with the circulating levels of kidney injury molecule-1 (KIM-1), which is a biomarker for disorders associated with kidney damage. Receiver-operating characteristic curve analysis for DEL-1 levels and the DEL-1 to KIM-1 ratio demonstrates that these values could be used as a potential biomarker that distinguishes patients with HELLP syndrome and preeclampsia. Finally, we show that placental endothelial cells are a source for DEL-1, and that the expression of this protein in placenta from patients with HELLP syndrome is minimal. Taken together, this study shows that DEL-1 is downregulated in HELLP syndrome both in the circulation and at the affected placental tissue, suggesting a potential role for this protein as a biomarker, which must be further evaluated.
Collapse
Affiliation(s)
- Gioulia Romanidou
- Department of Nephrology, Democritus University of Thrace, University General Hospital of Alexandroupolis, Dragana Campus, 68100 Alexandroupolis, Greece
- General Hospital "Sismanoglio", Sismanoglou 45, 69133 Komotini, Greece
| | - Theocharis G Konstantinidis
- Laboratory of Microbiology, School of Medicine, Democritus University of Thrace, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Anastasia-Maria Natsi
- First Department of Internal Medicine, Democritus University of Thrace, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Konstantia Kantartzi
- Department of Nephrology, Democritus University of Thrace, University General Hospital of Alexandroupolis, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Maria Panopoulou
- Laboratory of Microbiology, School of Medicine, Democritus University of Thrace, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Emmanouil Kontomanolis
- Department of Obstetrics and Gynecology, Democritus University of Thrace, University General Hospital of Alexandroupolis, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Christina Tsigalou
- Laboratory of Microbiology, School of Medicine, Democritus University of Thrace, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Maria Lambropoulou
- Laboratory of Histology-Embryology, School of Medicine, Democritus University of Thrace, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Eleni Gavriilaki
- Hematology Department-BMT Unit, General Hospital of Thessaloniki George Papanikolaou, 57010 Thessaloniki, Greece
| | - Stylianos Panagoutsos
- Department of Nephrology, Democritus University of Thrace, University General Hospital of Alexandroupolis, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Ploumis Pasadakis
- Department of Nephrology, Democritus University of Thrace, University General Hospital of Alexandroupolis, Dragana Campus, 68100 Alexandroupolis, Greece
| | - Ioannis Mitroulis
- First Department of Internal Medicine, Democritus University of Thrace, Dragana Campus, 68100 Alexandroupolis, Greece
| |
Collapse
|
7
|
Prakash AV, Welliver RR, Mirmire S, Baron S, Hicar MD. Presence of coronary aneurysms during Kawasaki Disease (KD) correlates with lower levels of autoantibodies to both full form and spliced variant of immune regulator Del-1. Immunol Lett 2023; 256-257:34-41. [PMID: 37019289 DOI: 10.1016/j.imlet.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/07/2023]
Abstract
Kawasaki disease (KD), a rare multisystem inflammatory condition that predominantly affects children under six years of age, is the leading cause of childhood-acquired heart disease in developed countries. The pathogenesis is unknown, but studies support that an infectious stimulus triggers an autoimmune reaction in a genetically susceptible child. Recent studies demonstrated an association with autoantibody response to Del-1 (also known as EDIL3) in children with KD. Del-1 is an extracellular matrix protein that is expressed both in macrophages and vascular endothelium. Del-1 has an anti-inflammatory role by preventing leucocyte migration to inflammatory sites. Del-1 has two expression variants and genetic variants of Del-1 have been associated with the risk of intracranial aneurysms. Due to the physiologic plausibility for a role during KD, we chose to assess if autoantibodies against DEL-1 are seen in a larger cohort of children with KD and to assess if responses correlated to aneurysm formation. Contrary to prior findings, in comparison to febrile controls, autoantibodies were not overall higher in children with KD. Elevation in Post-IVIG samples in comparison to pre-IVIG and convalescent samples supports the commonality of anti-Del-1 antibodies. Autoantibodies were notably lower in children with KD who had coronary Z score elevations in comparison to those who did not.
Collapse
Affiliation(s)
- Aviraag Vijaya Prakash
- Jacobs School of Medicine and Public Health, Department of Pediatrics, University at Buffalo, Buffalo, New York.
| | - R Ross Welliver
- Jacobs School of Medicine and Public Health, Department of Pediatrics, University at Buffalo, Buffalo, New York.
| | - Sanjiti Mirmire
- Houston Methodist Hospital, Department of Neurology, Houston, Texas.
| | - Sarah Baron
- Jacobs School of Medicine and Public Health, Department of Pediatrics, University at Buffalo, Buffalo, New York.
| | - Mark D Hicar
- Jacobs School of Medicine and Public Health, Department of Pediatrics, University at Buffalo, Buffalo, New York.
| |
Collapse
|
8
|
Guo F, Yan J, Ling G, Chen H, Huang Q, Mu J, Mo L. Screening and Identification of Key Biomarkers in Lower Grade Glioma via Bioinformatical Analysis. Appl Bionics Biomech 2022; 2022:6959237. [PMID: 35035531 PMCID: PMC8759910 DOI: 10.1155/2022/6959237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/06/2021] [Indexed: 02/07/2023] Open
Abstract
Lower-grade glioma (LGG) is a common type of central nervous system tumor. Due to its complicated pathogenesis, the choice and timing of adjuvant therapy after tumor treatment are controversial. This study explored and identified potential therapeutic targets for lower-grade. The bioinformatics method was employed to identify potential biomarkers and LGG molecular mechanisms. Firstly, we selected and downloaded GSE15824, GSE50161, and GSE86574 from the GEO database, which included 40 LGG tissue and 28 normal brain tissue samples. GEO and VENN software identified of 206 codifference expressed genes (DEGs). Secondly, we applied the DAVID online software to investigate the DEG biological function and KEGG pathway enrichment, as well as to build the protein interaction visualization network through Cytoscape and STRING website. Then, the MCODE plug is used in the analysis of 22 core genes. Thirdly, the 22 core genes were analyzed with UNCLA software, of which 18 genes were associated with a worse prognosis. Fourthly, GEPIA was used to analyze the 18 selected genes, and 14 genes were found to be a significantly different expression between LGGs and normal brain tumor samples. Fifthly, hierarchical gene clustering was used to examine the 14 important gene expression differences in different histologies, as well as analysis of the KEGG pathway. Five of these genes were shown to be abundant in the natural killer cell-mediated cytokines (NKCC) and phagosome pathways. The five key genes that may be affected by the immune microenvironment play a crucial role in LGG development.
Collapse
Affiliation(s)
- Fangzhou Guo
- Department of Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jun Yan
- Department of Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Guoyuan Ling
- Department of Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Hainan Chen
- Department of Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Qianrong Huang
- Department of Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Junbo Mu
- Department of Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Ligen Mo
- Department of Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| |
Collapse
|
9
|
Zhao B, Li H, Cao S, Zhong W, Li B, Jia W, Ning Z. Negative Regulators of Inflammation Response to the Dynamic Expression of Cytokines in DF-1 and MDCK Cells Infected by Avian Influenza Viruses. Inflammation 2021; 45:573-589. [PMID: 34581936 DOI: 10.1007/s10753-021-01568-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 11/25/2022]
Abstract
The H5N1 and H9N2 avian influenza viruses (AIVs) seriously endanger the poultry industry and threaten human health. Characteristic inflammatory responses caused by H5N1 and H9N2 AIVs in birds and mammals result in unique clinical manifestations. The role of anti-inflammatory regulators, PTX3, Del-1, and GDF-15, in H5N1 and H9N2-AIV-mediated inflammation in birds and mammals has not yet been verified. Here, the expression of PTX3, Del-1, and GDF-15 in DF-1 and MDCK cells infected with H5N1 and H9N2 AIVs and their effect on inflammatory cytokines were analyzed. Infection with both AIVs increased PTX3, Del-1, and GDF-15 expression in DF-1 and MDCK cells. Infection with H9N2 or H5N1 AIV in DF-1 and MDCK cells with overexpression of all three factors, either alone or in combination, inhibited the expression of tested inflammatory cytokines. Furthermore, co-expression of PTX3, Del-1, and GDF-15 enhanced the inhibition, irrespective of the cell line. The findings from this study offer insight into the pathogenic differences between H5N1 and H9N2 AIVs in varied hosts. Moreover, our findings can be used to help screen for host-specific anti-inflammatory agents.
Collapse
Affiliation(s)
- Bingqian Zhao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Huizi Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Suilan Cao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Wenxia Zhong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Baojian Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Weixin Jia
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Zhangyong Ning
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China. .,Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, 525000, China.
| |
Collapse
|
10
|
Li M, Zhong D, Li G. Regulatory role of local tissue signal Del-1 in cancer and inflammation: a review. Cell Mol Biol Lett 2021; 26:31. [PMID: 34217213 PMCID: PMC8254313 DOI: 10.1186/s11658-021-00274-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/28/2021] [Indexed: 12/29/2022] Open
Abstract
Developmental endothelial locus-1 (Del-1) is a secretory, multifunctional domain protein. It can bind to integrins and phosphatidylserine. As a local tissue signal, it plays a regulatory role in the cancer microenvironment and inflammation. Del-1 has destructive effects in most cancers and is associated with the progression and invasion of some cancers. In contrast, Del-1 also plays a protective role in inflammation. Del-1 regulates inflammation by regulating the generation of neutrophils in bone marrow, inhibiting the recruitment and migration of neutrophils and accelerating the clearance of neutrophils by macrophages. Del-1 and IL-17 are reciprocally regulated, and their balance maintains immune system homeostasis. Del-1 is expected to become a new therapeutic target for inflammatory disorders such as multiple sclerosis.
Collapse
Affiliation(s)
- Meng Li
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Road, Harbin, 150001, Heilongjiang, China
| | - Di Zhong
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Road, Harbin, 150001, Heilongjiang, China.
| | - Guozhong Li
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Road, Harbin, 150001, Heilongjiang, China
| |
Collapse
|
11
|
Lamers C, Plüss CJ, Ricklin D. The Promiscuous Profile of Complement Receptor 3 in Ligand Binding, Immune Modulation, and Pathophysiology. Front Immunol 2021; 12:662164. [PMID: 33995387 PMCID: PMC8118671 DOI: 10.3389/fimmu.2021.662164] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/12/2021] [Indexed: 12/19/2022] Open
Abstract
The β2-integrin receptor family has a broad spectrum of physiological functions ranging from leukocyte adhesion, cell migration, activation, and communication to the phagocytic uptake of cells and particles. Among the members of this family, complement receptor 3 (CR3; CD11b/CD18, Mac-1, αMβ2) is particularly promiscuous in its functional profile and ligand selectivity. There are close to 100 reported structurally unrelated ligands for CR3, and while many ligands appear to cluster at the αMI domain, molecular details about binding modes remain largely elusive. The versatility of CR3 is reflected in its functional portfolio, which includes prominent roles in the removal of invaders and cell debris, induction of tolerance and synaptic pruning, and involvement in the pathogenesis of numerous autoimmune and chronic inflammatory pathologies. While CR3 is an interesting therapeutic target for immune modulation due to these known pathophysiological associations, drug development efforts are limited by concerns of potential interference with host defense functions and, most importantly, an insufficient molecular understanding of the interplay between ligand binding and functional impact. Here, we provide a systematic summary of the various interaction partners of CR3 with a focus on binding mechanisms and functional implications. We also discuss the roles of CR3 as an immune receptor in health and disease, as an activation marker in research and diagnostics, and as a therapeutic target.
Collapse
Affiliation(s)
- Christina Lamers
- Molecular Pharmacy Unit, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | | | | |
Collapse
|
12
|
Lee SJ, Jeong JH, Lee J, Park HY, Jung JH, Kang J, Kim EA, Park NJY, Park JY, Lee IH, Chae YS. MicroRNA-496 inhibits triple negative breast cancer cell proliferation by targeting Del-1. Medicine (Baltimore) 2021; 100:e25270. [PMID: 33832090 PMCID: PMC8036068 DOI: 10.1097/md.0000000000025270] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 03/05/2021] [Indexed: 01/05/2023] Open
Abstract
Del-1 has been linked to the pathogenesis of various cancers, including breast cancer. However, the regulation of Del-1 expression remains unclear. We previously reported the interaction between microRNA-137 (miR-137) and the Del-1 gene. In this study, we investigated miR-496 and miR-137 as regulators of Del-1 expression in triple negative breast cancer (TNBC). Del-1 mRNA and miR-496 were measured by quantitative PCR in breast cancer cells (MDA-MB-231, MCF7, SK-BR3, and T-47D) and tissues from 30 patients with TNBC. The effects of miR-496 on cell proliferation, migration, and invasion were determined with MTT, wound healing, and Matrigel transwell assays, respectively. In MDA-MB-231 cells, miR-496 levels were remarkably low and Del-1 mRNA levels were higher than in other breast cancer cell lines. Luciferase reporter assays revealed that miR-496 binds the 3'-UTR of Del-1 and Del-1 expression is downregulated by miR-496 mimics. Furthermore, miR-496 inhibited the proliferation, migration, and invasion of MDA-MB-231 cells. The effects of miR-496 on cell proliferation were additive with those of miR-137, another miRNA that regulates Del-1 expression. Moreover, in the 30 TNBC specimens, miR-496 was downregulated (P < .005) and the levels of Del-1 in the plasma were significantly elevated as compared with in normal controls (P = .0142). The Cancer Genome Atlas (TCGA) data showed the correlation of miR-496 expression with better overall survival in patients with early TNBC. In in silico and in vitro analyses, we showed that Del-1 is a target of miR-496 in TNBC and thereby affects cancer progression. Our findings suggest that miR-496 and miR-137 additively target Del-1 and act as modulating factors in TNBC. They are potentially new biomarkers for patients with TNBC.
Collapse
Affiliation(s)
- Soo Jung Lee
- Department of Oncology/Hematology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital
| | | | - Jeeyeon Lee
- Breast & Thyroid Surgery, Kyungpook National University, Kyungpook National University Chilgok Hospital
| | - Ho Yong Park
- Breast & Thyroid Surgery, Kyungpook National University, Kyungpook National University Chilgok Hospital
| | - Jin Hyang Jung
- Breast & Thyroid Surgery, Kyungpook National University, Kyungpook National University Chilgok Hospital
| | | | - Eun Ae Kim
- Exosome Convergence Research Center, School of Medicine, Kyungpook National University
| | - Nora Jee-Young Park
- Pathology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
| | - Ji-Young Park
- Pathology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
| | - In Hee Lee
- Department of Oncology/Hematology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital
| | - Yee Soo Chae
- Department of Oncology/Hematology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital
| |
Collapse
|
13
|
Li X, Colamatteo A, Kalafati L, Kajikawa T, Wang H, Lim JH, Bdeir K, Chung KJ, Yu X, Fusco C, Porcellini A, De Simone S, Matarese G, Chavakis T, De Rosa V, Hajishengallis G. The DEL-1/β3 integrin axis promotes regulatory T cell responses during inflammation resolution. J Clin Invest 2021; 130:6261-6277. [PMID: 32817592 DOI: 10.1172/jci137530] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 08/11/2020] [Indexed: 02/06/2023] Open
Abstract
FOXP3+CD4+ regulatory T cells (Tregs) are critical for immune homeostasis and respond to local tissue cues, which control their stability and function. We explored here whether developmental endothelial locus-1 (DEL-1), which, like Tregs, increases during resolution of inflammation, promotes Treg responses. DEL-1 enhanced Treg numbers and function at barrier sites (oral and lung mucosa). The underlying mechanism was dissected using mice lacking DEL-1 or expressing a point mutant thereof, or mice with T cell-specific deletion of the transcription factor RUNX1, identified by RNA sequencing analysis of the DEL-1-induced Treg transcriptome. Specifically, through interaction with αvβ3 integrin, DEL-1 promoted induction of RUNX1-dependent FOXP3 expression and conferred stability of FOXP3 expression upon Treg restimulation in the absence of exogenous TGF-β1. Consistently, DEL-1 enhanced the demethylation of the Treg-specific demethylated region (TSDR) in the mouse Foxp3 gene and the suppressive function of sorted induced Tregs. Similarly, DEL-1 increased RUNX1 and FOXP3 expression in human conventional T cells, promoting their conversion into induced Tregs with increased TSDR demethylation, enhanced stability, and suppressive activity. We thus uncovered a DEL-1/αvβ3/RUNX1 axis that promotes Treg responses at barrier sites and offers therapeutic options for modulating inflammatory/autoimmune disorders.
Collapse
Affiliation(s)
- Xiaofei Li
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Alessandra Colamatteo
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II," Naples, Italy
| | - Lydia Kalafati
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.,National Center for Tumor Diseases, Dresden, Germany, and German Cancer Research Center, Heidelberg, Germany
| | - Tetsuhiro Kajikawa
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Hui Wang
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jong-Hyung Lim
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Khalil Bdeir
- Department of Pathology and Laboratory Medicine and
| | - Kyoung-Jin Chung
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Xiang Yu
- Department of Biology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Clorinda Fusco
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II," Naples, Italy
| | - Antonio Porcellini
- Dipartimento di Biologia, Università degli Studi di Napoli "Federico II," Complesso Universitario di Monte Santangelo, Naples, Italy
| | - Salvatore De Simone
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), Naples, Italy
| | - Giuseppe Matarese
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II," Naples, Italy.,Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), Naples, Italy
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Veronica De Rosa
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), Naples, Italy.,Unità di Neuroimmunologia, Fondazione Santa Lucia, Rome, Italy
| | - George Hajishengallis
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| |
Collapse
|
14
|
Hajishengallis G, Chavakis T, Lambris JD. Current understanding of periodontal disease pathogenesis and targets for host-modulation therapy. Periodontol 2000 2020; 84:14-34. [PMID: 32844416 DOI: 10.1111/prd.12331] [Citation(s) in RCA: 160] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Recent advances indicate that periodontitis is driven by reciprocally reinforced interactions between a dysbiotic microbiome and dysregulated inflammation. Inflammation is not only a consequence of dysbiosis but, via mediating tissue dysfunction and damage, fuels further growth of selectively dysbiotic communities of bacteria (inflammophiles), thereby generating a self-sustained feed-forward loop that perpetuates the disease. These considerations provide a strong rationale for developing adjunctive host-modulation therapies for the treatment of periodontitis. Such host-modulation approaches aim to inhibit harmful inflammation and promote its resolution or to interfere directly with downstream effectors of connective tissue and bone destruction. This paper reviews diverse strategies targeted to modulate the host periodontal response and discusses their mechanisms of action, perceived safety, and potential for clinical application.
Collapse
Affiliation(s)
- George Hajishengallis
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Triantafyllos Chavakis
- Department of Clinical Pathobiochemistry, Faculty of Medicine, Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| | - John D Lambris
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| |
Collapse
|
15
|
Yuh DY, Maekawa T, Li X, Kajikawa T, Bdeir K, Chavakis T, Hajishengallis G. The secreted protein DEL-1 activates a β3 integrin-FAK-ERK1/2-RUNX2 pathway and promotes osteogenic differentiation and bone regeneration. J Biol Chem 2020; 295:7261-7273. [PMID: 32280065 PMCID: PMC7247308 DOI: 10.1074/jbc.ra120.013024] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/08/2020] [Indexed: 12/25/2022] Open
Abstract
The integrin-binding secreted protein developmental endothelial locus-1 (DEL-1) is involved in the regulation of both the initiation and resolution of inflammation in different diseases, including periodontitis, an oral disorder characterized by inflammatory bone loss. Here, using a mouse model of bone regeneration and in vitro cell-based mechanistic studies, we investigated whether and how DEL-1 can promote alveolar bone regeneration during resolution of experimental periodontitis. Compared with WT mice, mice lacking DEL-1 or expressing a DEL-1 variant with an Asp-to-Glu substitution in the RGD motif ("RGE point mutant"), which does not interact with RGD-dependent integrins, exhibited defective bone regeneration. Local administration of DEL-1 or of its N-terminal segment containing the integrin-binding RGD motif, but not of the RGE point mutant, reversed the defective bone regeneration in the DEL-1-deficient mice. Moreover, DEL-1 (but not the RGE point mutant) promoted osteogenic differentiation of MC3T3-E1 osteoprogenitor cells or of primary calvarial osteoblastic cells in a β3 integrin-dependent manner. The ability of DEL-1 to promote in vitro osteogenesis, indicated by induction of osteogenic genes such as the master transcription factor Runt-related transcription factor-2 (Runx2) and by mineralized nodule formation, depended on its capacity to induce the phosphorylation of focal adhesion kinase (FAK) and of extracellular signal-regulated kinase 1/2 (ERK1/2). We conclude that DEL-1 can activate a β3 integrin-FAK-ERK1/2-RUNX2 pathway in osteoprogenitors and promote new bone formation in mice. These findings suggest that DEL-1 may be therapeutically exploited to restore bone lost due to periodontitis and perhaps other osteolytic conditions.
Collapse
Affiliation(s)
- Da-Yo Yuh
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Tomoki Maekawa
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Research Center for Advanced Oral Science, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan
| | - Xiaofei Li
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Tetsuhiro Kajikawa
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Khalil Bdeir
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, 001069 Dresden, Germany
| | - George Hajishengallis
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104.
| |
Collapse
|
16
|
Hajishengallis G. New developments in neutrophil biology and periodontitis. Periodontol 2000 2019; 82:78-92. [DOI: 10.1111/prd.12313] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- George Hajishengallis
- Department of Microbiology Penn Dental Medicine University of Pennsylvania Philadelphia Pennsylvania, USA
| |
Collapse
|
17
|
MicroRNA-137 Inhibits Cancer Progression by Targeting Del-1 in Triple-Negative Breast Cancer Cells. Int J Mol Sci 2019; 20:ijms20246162. [PMID: 31817673 PMCID: PMC6941134 DOI: 10.3390/ijms20246162] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 12/04/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) can be used to target a variety of human malignancy by targeting their oncogenes or tumor suppressor genes. The developmental endothelial locus-1 (Del-1) might be under miRNA regulation. This study investigated microRNA-137 (miR-137) function and Del-1 expression in triple-negative breast cancer (TNBC) cells and tissues. Del-1 mRNA and miRNA-137 levels were determined via qRT-PCR in breast cancer cells (MDA-MB-231, MCF7, SK-BR3, and T-47D) and tissues from 30 patients with TNBC. The effects of miR-137 on cell proliferation, migration, and invasion were determined using MTT assays, wound healing, and Matrigel transwell assays. The luciferase reporter assay revealed direct binding of miR-137 to the 3'-UTR of Del-1. miR-137 inhibited cell proliferation, migration, and invasion of MDA-MB-231 cells. Among the 30 TNBC specimens, miR-137 was downregulated and Del-1 level in plasma was significantly elevated relative to normal controls. It is concluded that miR-137 regulates Del-1 expression in TNBC by directly binding to the Del-1 gene and cancer progression. The results implicate miR-137 as a new therapeutic biomarker for patients with TNBC.
Collapse
|
18
|
Kim WY, Lee SH, Kim DY, Ryu HJ, Chon GR, Park YY, Fu Y, Huh JW, Lim CM, Koh Y, Choi EY, Hong SB. Serum developmental endothelial locus-1 is associated with severity of sepsis in animals and humans. Sci Rep 2019; 9:13005. [PMID: 31506547 PMCID: PMC6737092 DOI: 10.1038/s41598-019-49564-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 08/27/2019] [Indexed: 12/16/2022] Open
Abstract
Disruption of the endothelial glycocalyx has a prominent role in the pathophysiology of sepsis. Developmental endothelial locus-1 (Del-1) is an endothelial-derived anti-inflammatory factor. We hypothesized that degradation of the endothelial glycocalyx during sepsis may increase serum Del-1. A mouse model of sepsis was created using cecal ligation and puncture. In septic mice, the endothelial glycocalyx was nearly completely degraded, with less formation of Del-1 in the endothelium and extracellular matrix than in control mice. Serum Del-1 levels were significantly increased in the septic mice with increasing severity of sepsis. Serum Del-1 levels were also measured in 84 patients with sepsis and septic shock and in 20 control subjects. The median serum Del-1 level in patients with sepsis was significantly higher than that in healthy controls. The high Del-1 group had higher illness severity scores and contained more patients with organ dysfunction than the low Del-1 group. The 90-day mortality rate was significantly higher in the high Del-1 group than in the low Del-1 group. Multivariate analysis indicated a tendency for a high serum Del-1 level to be associated with a higher mortality risk. Increased serum Del-1 may be a novel diagnostic biomarker of sepsis and an indicator of disease severity.
Collapse
Affiliation(s)
- Won-Young Kim
- Department of Internal Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Seung-Hwan Lee
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dong-Young Kim
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hyun Jin Ryu
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Gyu Rak Chon
- Department of Internal Medicine, Cheongju St. Mary's Hospital, Cheongju, Republic of Korea
| | - Yun Young Park
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yan Fu
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jin Won Huh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Chae-Man Lim
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Younsuck Koh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Eun Young Choi
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Sang-Bum Hong
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| |
Collapse
|
19
|
Hajishengallis G, Chavakis T. DEL-1-Regulated Immune Plasticity and Inflammatory Disorders. Trends Mol Med 2019; 25:444-459. [PMID: 30885428 DOI: 10.1016/j.molmed.2019.02.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/18/2019] [Accepted: 02/20/2019] [Indexed: 12/16/2022]
Abstract
In contrast to traditional immune cell-centered viewpoints, recent studies suggest that tissues are not passive recipients of immunity but have a 'regulatory say' over the host inflammatory response. Identification of tissue-derived homeostatic molecules regulating immune plasticity is seminal for understanding the inherent regulatory potential of different organs in the immune response. DEL-1 (developmental endothelial locus-1) is a secreted multidomain protein interacting with integrins and phospholipids and regulates, depending on its expression location, distinct stages of the host inflammatory response (from myelopoiesis over leukocyte recruitment to efferocytosis and resolution of inflammation). Here we synthesize recent evidence of DEL-1 as an exemplar local regulatory factor in the context of tissue immune plasticity and inflammatory disorders (such as periodontitis, multiple sclerosis, and pulmonary disorders), and discuss its potential as a therapeutic agent.
Collapse
Affiliation(s)
- George Hajishengallis
- Penn Dental Medicine, Department of Microbiology, University of Pennsylvania, Philadelphia, PA, USA.
| | - Triantafyllos Chavakis
- Faculty of Medicine, Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany.
| |
Collapse
|
20
|
Qian D, Liu H, Wang X, Ge J, Luo S, Patz EF, Moorman PG, Su L, Shen S, Christiani DC, Wei Q. Potentially functional genetic variants in the complement-related immunity gene-set are associated with non-small cell lung cancer survival. Int J Cancer 2018; 144:1867-1876. [PMID: 30259978 DOI: 10.1002/ijc.31896] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 08/30/2018] [Accepted: 09/10/2018] [Indexed: 12/30/2022]
Abstract
The complement system plays an important role in the innate and adaptive immunity, complement components mediate tumor cytolysis of antibody-based immunotherapy, and complement activation in the tumor microenvironment may promote tumor progression or inhibition, depending on the mechanism of action. In the present study, we conducted a two-phase analysis of two independently published genome-wide association studies (GWASs) for associations between genetic variants in a complement-related immunity gene-set and overall survival of non-small cell lung cancer (NSCLC). The GWAS dataset from Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial was used as the discovery, and multivariate Cox proportional hazards regression with false-positive report probability for multiple test corrections were performed to evaluate associations between 14,699 single-nucleotide polymorphisms (SNPs) in 111 genes and survival of 1,185 NSCLC patients. The identified significant SNPs in a single-locus analysis were further validated with 984 NSCLC patients in the GWAS dataset from the Harvard Lung Cancer Susceptibility (HLCS) Study. The results showed that two independent, potentially functional SNPs in two genes (VWF rs73049469 and ITGB2 rs3788142) were significantly associated with NSCLC survival, with a combined hazards ratio (HR) of 1.22 [95% confidence interval (CI) = 1.07-1.40, P = 0.002] and 1.16 (1.07-1.27, 6.45 × 10-4 ), respectively. Finally, we performed expression quantitative trait loci (eQTL) analysis and found that survival-associated genotypes of VWF rs73049469 were also significantly associated with mRNA expression levels of the gene. These results indicated that genetic variants of the complement-related immunity genes might be predictors of NSCLC survival, particularly for the short-term survival, possibly by modulating the expression of genes involved in the host immunity.
Collapse
Affiliation(s)
- Danwen Qian
- Cancer Institute, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina 27710, USA
| | - Hongliang Liu
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina 27710, USA
| | - Xiaomeng Wang
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina 27710, USA
| | - Jie Ge
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina 27710, USA
| | - Sheng Luo
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina 27710, USA
| | - Edward F Patz
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Radiology, Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina 27710, USA
| | - Patricia G Moorman
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Community and Family Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Li Su
- Departments of Environmental Health and Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts 02115, USA
| | - Sipeng Shen
- Departments of Environmental Health and Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts 02115, USA
| | - David C Christiani
- Departments of Environmental Health and Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts 02115, USA.,Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Qingyi Wei
- Cancer Institute, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina 27710, USA
| |
Collapse
|
21
|
DEL-1 promotes macrophage efferocytosis and clearance of inflammation. Nat Immunol 2018; 20:40-49. [PMID: 30455459 PMCID: PMC6291356 DOI: 10.1038/s41590-018-0249-1] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 09/26/2018] [Indexed: 12/12/2022]
Abstract
Resolution of inflammation is essential for tissue homeostasis and a promising approach to inflammatory disorders. Here we found that DEL-1, a secreted protein inhibiting leukocyte-endothelial adhesion and inflammation initiation, also functions as a non-redundant downstream effector in inflammation clearance. In human and murine periodontitis, waning of inflammation correlated with DEL-1 upregulation, whereas resolution of experimental periodontitis failed in DEL-1 deficiency. This concept was mechanistically substantiated in acute monosodium urate crystal-induced inflammation, where the pro-resolution function of DEL-1 was attributed to effective apoptotic neutrophil clearance (efferocytosis). DEL-1-mediated efferocytosis induced liver-X-receptor-dependent macrophage reprogramming to pro-resolving phenotype and was required for optimal production of at least certain specific pro-resolving mediators. Experiments in transgenic mice with cell-specific overexpression of DEL-1 linked its anti-leukocyte recruitment action to endothelial-derived DEL-1 and its efferocytic/pro-resolving action to macrophage-derived DEL-1. Thus, the compartmentalized expression of DEL-1 facilitates distinct homeostatic functions in an appropriate context that can be harnessed therapeutically.
Collapse
|
22
|
Bellis ES, Edlund RB, Berrios HK, Lessios HA, Denver DR. Molecular signatures of host specificity linked to habitat specialization in Exaiptasia sea anemones. Ecol Evol 2018; 8:5413-5426. [PMID: 29938062 PMCID: PMC6010850 DOI: 10.1002/ece3.4058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/24/2018] [Accepted: 02/27/2018] [Indexed: 12/17/2022] Open
Abstract
Rising ocean temperatures associated with global climate change induce breakdown of the symbiosis between coelenterates and photosynthetic microalgae of the genus Symbiodinium. Association with more thermotolerant partners could contribute to resilience, but the genetic mechanisms controlling specificity of hosts for particular Symbiodinium types are poorly known. Here, we characterize wild populations of a sea anemone laboratory model system for anthozoan symbiosis, from contrasting environments in Caribbean Panama. Patterns of anemone abundance and symbiont diversity were consistent with specialization of holobionts for particular habitats, with Exaiptasia pallida/S. minutum (ITS2 type B1) abundant on vertical substrate in thermally stable, shaded environments but E. brasiliensis/Symbiodinium sp. (ITS2 clade A) more common in shallow areas subject to high temperature and irradiance. Population genomic sequencing revealed a novel E. pallida population from the Bocas del Toro Archipelago that only harbors S. minutum. Loci most strongly associated with divergence of the Bocas-specific population were enriched in genes with putative roles in cnidarian symbiosis, including activators of the complement pathway of the innate immune system, thrombospondin-type-1 repeat domain proteins, and coordinators of endocytic recycling. Our findings underscore the importance of unmasking cryptic diversity in natural populations and the role of long-term evolutionary history in mediating interactions with Symbiodinium.
Collapse
Affiliation(s)
- Emily S. Bellis
- Department of Integrative BiologyOregon State UniversityCorvallisOregon
| | - Reid. B. Edlund
- Department of Integrative BiologyOregon State UniversityCorvallisOregon
| | - Hazel K. Berrios
- Department of Biological SciencesArkansas State UniversityJonesboroArkansas
| | | | - Dee R. Denver
- Department of Integrative BiologyOregon State UniversityCorvallisOregon
| |
Collapse
|
23
|
Yan S, Chen L, Zhao Q, Liu YN, Hou R, Yu J, Zhang H. Developmental endothelial locus-1 (Del-1) antagonizes Interleukin-17-mediated allergic asthma. Immunol Cell Biol 2018; 96:526-535. [PMID: 29437247 DOI: 10.1111/imcb.12023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 02/08/2018] [Accepted: 02/08/2018] [Indexed: 01/13/2023]
Abstract
Interleukin (IL)-17 is a major contributor to the pathogenesis of allergic asthma. Developmental endothelial locus-1 (Del-1) is an endothelial cell-secreted protein known to inhibit IL-17 expression. However, little is known about the association between Del-1 and IL-17 in the pathogenesis of allergic asthma. Using bronchoalveolar lavage fluid (BALF) and peripheral blood samples collected from allergic asthmatic patients and controls, we explored the role of Del-1 in relation to IL-17 in allergic asthma. We found that the negative correlation between Del-1 and IL-17 was significant in BALF of allergic asthmatics. Del-1 treatment inhibited the expression of IL-17, the differentiation of IL-17-secreting leukocytes and associated cytokines. Contrarily, IL-17 levels were increased after treatment with anti-Del-1 mAb. Consistent with this, Del-1 treatment led to downregulation of IL-5, CCL5 and IL-4, thus reducing secretion of eosinophil cationic protein. Furthermore, Del-1 significantly downregulated the expression of ICAM-1 and may have the potential to reduce leukocyte transendothelial migration. Our data demonstrate that Del-1 can negatively regulate IL-17 and its proinflammatory function, thereby limiting airway inflammation in allergic asthmatics, and suggest Del-1 as a potential candidate for prevention and treatment of allergic asthma.
Collapse
Affiliation(s)
- Shu Yan
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Li Chen
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Zhao
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ya-Nan Liu
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Rui Hou
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Yu
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hong Zhang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
24
|
Chen LS, Kourtzelis I, Singh RP, Grossklaus S, Wielockx B, Hajishengallis G, Chavakis T, Mitroulis I. Endothelial Cell-Specific Overexpression of Del-1 Drives Expansion of Haematopoietic Progenitor Cells in the Bone Marrow. Thromb Haemost 2018; 118:613-616. [PMID: 29415284 PMCID: PMC6081267 DOI: 10.1055/s-0038-1624582] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Lan-Sun Chen
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| | - Ioannis Kourtzelis
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| | - Rashim Pal Singh
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| | - Sylvia Grossklaus
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| | - Ben Wielockx
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| | - George Hajishengallis
- Department of Microbiology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, United States
| | - Triantafyllos Chavakis
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| | - Ioannis Mitroulis
- Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| |
Collapse
|
25
|
Subramanian P, Prucnal M, Gercken B, Economopoulou M, Hajishengallis G, Chavakis T. Endothelial cell-specific overexpression of developmental endothelial locus-1 does not influence atherosclerosis development in ApoE -/- mice. Thromb Haemost 2017; 117:2003-2005. [PMID: 28796274 DOI: 10.1160/th17-03-0160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 06/21/2017] [Indexed: 12/14/2022]
Abstract
Supplementary Material to this article is available online at www.thrombosis-online.com.
Collapse
Affiliation(s)
- Pallavi Subramanian
- Dr. Pallavi Subramanian, Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Fetscherstrasse 74, 01307 Dresden, Germany, Tel.: +49 351 458 6250, Fax: +49 351 458 6324, E-mail:
| | | | | | | | | | | |
Collapse
|
26
|
Folwaczny M, Karnesi E, Berger T, Paschos E. Clinical association between chronic periodontitis and the leukocyte extravasation inhibitors developmental endothelial locus-1 and pentraxin-3. Eur J Oral Sci 2017. [PMID: 28643381 DOI: 10.1111/eos.12357] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This clinical study aimed to determine whether periodontal disease is associated with expression of developmental endothelial locus-1 (Del-1) and pentraxin-3 (PTX-3), endogenous inhibitors of leukocyte extravasation in humans. Expression of DEL1, PTX3, interleukin-17A (IL17A), and lymphocyte function-associated antigen-1 (LFA1) was determined, using RT-PCR and melting curve analysis, in biopsies of gingival tissues from 95 patients: 42 with moderate periodontitis; 40 with severe periodontitis; and 13 healthy controls. Relative expression of DEL1 and PTX3 was statistically significantly weaker in patients with periodontitis than in the control subjects. On the contrary, both IL17A and LFA1 showed statistically significant stronger expression in patients with periodontitis than in healthy controls. Correlation analysis, performed using Spearman's test, showed that expression of DEL1 was statistically significantly linked to periodontitis (ρ = -0.103) and to age (ρ = -0.134), but not to the gender of the patient, and that expression of PTX3 was significantly correlated with periodontitis (ρ = -0.354). Expression of neutrophil extravasation inhibitors DEL1 and PTX3 show significant, but weak, association with the clinical manifestation of chronic periodontitis.
Collapse
Affiliation(s)
- Matthias Folwaczny
- Department of Operative Dentistry and Periodontology, Ludwig-Maximilians-University, Munich, Germany
| | - Evangelia Karnesi
- Department of Operative Dentistry and Periodontology, Ludwig-Maximilians-University, Munich, Germany
| | - Tamara Berger
- Department of Operative Dentistry and Periodontology, Ludwig-Maximilians-University, Munich, Germany
| | - Ekaterini Paschos
- Department of Orthodontics, Ludwig-Maximilians-University, Munich, Germany
| |
Collapse
|
27
|
Klotzsche-von Ameln A, Cremer S, Hoffmann J, Schuster P, Khedr S, Korovina I, Troullinaki M, Neuwirth A, Sprott D, Chatzigeorgiou A, Economopoulou M, Orlandi A, Hain A, Zeiher AM, Deussen A, Hajishengallis G, Dimmeler S, Chavakis T, Chavakis E. Endogenous developmental endothelial locus-1 limits ischaemia-related angiogenesis by blocking inflammation. Thromb Haemost 2017; 117:1150-1163. [PMID: 28447099 DOI: 10.1160/th16-05-0354] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 03/05/2017] [Indexed: 12/23/2022]
Abstract
We have recently identified endothelial cell-secreted developmental endothelial locus-1 (Del-1) as an endogenous inhibitor of β2-integrin-dependent leukocyte infiltration. Del-1 was previously also implicated in angiogenesis. Here, we addressed the role of endogenously produced Del-1 in ischaemia-related angiogenesis. Intriguingly, Del-1-deficient mice displayed increased neovascularisation in two independent ischaemic models (retinopathy of prematurity and hind-limb ischaemia), as compared to Del-1-proficient mice. On the contrary, angiogenic sprouting in vitro or ex vivo (aortic ring assay) and physiological developmental retina angiogenesis were not affected by Del-1 deficiency. Mechanistically, the enhanced ischaemic neovascularisation in Del-1-deficiency was linked to higher infiltration of the ischaemic tissue by CD45+ haematopoietic and immune cells. Moreover, Del-1-deficiency promoted β2-integrin-dependent adhesion of haematopoietic cells to endothelial cells in vitro, and the homing of hematopoietic progenitor cells and of immune cell populations to ischaemic muscles in vivo. Consistently, the increased hind limb ischaemia-related angiogenesis in Del-1 deficiency was completely reversed in mice lacking both Del-1 and the β2-integrin LFA-1. Additionally, enhanced retinopathy-associated neovascularisation in Del-1-deficient mice was reversed by LFA-1 blockade. Our data reveal a hitherto unrecognised function of endogenous Del-1 as a local inhibitor of ischaemia-induced angiogenesis by restraining LFA-1-dependent homing of pro-angiogenic haematopoietic cells to ischaemic tissues. Our findings are relevant for the optimisation of therapeutic approaches in the context of ischaemic diseases.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Emmanouil Chavakis
- Emmanouil Chavakis, MD, Dept. of Internal Medicine III, Goethe University of Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany, Tel.: +49 69 6301 4131, +49 69 6301 87965, Fax: +49 69 6301 83462, E-mail:
| |
Collapse
|
28
|
Regulation of tissue infiltration by neutrophils: role of integrin α3β1 and other factors. Curr Opin Hematol 2016; 23:36-43. [PMID: 26554893 DOI: 10.1097/moh.0000000000000198] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
PURPOSE OF REVIEW Neutrophils have traditionally been viewed in the context of acute infection and inflammation forming the first line of defense against invading pathogens. Neutrophil trafficking to the site of inflammation requires adhesion and transmigration through blood vessels, which is orchestrated by adhesion molecules, such as β2 and β1-integrins, chemokines, and cytokines. The review focuses on recent advances in understanding the regulators of neutrophil recruitment during inflammation in both acute and chronic settings. RECENT FINDINGS Recent findings suggest that besides the established pathways of selectin or chemokine-mediated integrin activation, signaling by distinct Toll-like receptors (TLRs) (especially TLR2, TLR4, and TLR5) can activate integrin-dependent neutrophil adhesion. Moreover, the integrin α3β1 has been vitally implicated as a new player in neutrophil recruitment and TLR-mediated responses in septic inflammation. Furthermore, several endogenous inhibitory mechanisms of leukocyte recruitment have been identified, including the secreted molecules Del-1, PTX3, and GDF-15, which block distinct steps of the leukocyte adhesion cascade, as well as novel regulatory signaling pathways, involving the protein kinase AKT1 and IFN-λ2/IL-28A. SUMMARY The leukocyte adhesion cascade is a tightly regulated process, subjected to both positive and negative regulators. Dysregulation of this process and hence neutrophil recruitment can lead to the development of inflammatory and autoimmune diseases.
Collapse
|
29
|
Shin J, Maekawa T, Abe T, Hajishengallis E, Hosur K, Pyaram K, Mitroulis I, Chavakis T, Hajishengallis G. DEL-1 restrains osteoclastogenesis and inhibits inflammatory bone loss in nonhuman primates. Sci Transl Med 2016; 7:307ra155. [PMID: 26424570 DOI: 10.1126/scitranslmed.aac5380] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
DEL-1 (developmental endothelial locus-1) is an endothelial cell-secreted protein that regulates LFA-1 (lymphocyte function-associated antigen-1) integrin-dependent leukocyte recruitment and inflammation in various tissues. We identified a novel regulatory mechanism of DEL-1 in osteoclast biology. Specifically, we showed that DEL-1 is expressed by human and mouse osteoclasts and regulates their differentiation and resorptive function. Mechanistically, DEL-1 inhibited the expression of NFATc1, a master regulator of osteoclastogenesis, in a Mac-1 integrin-dependent manner. In vivo mechanistic analysis has dissociated the anti-inflammatory from the anti-bone-resorptive action of DEL-1 and identified structural components thereof mediating these distinct functions. Locally administered human DEL-1 blocked inflammatory periodontal bone loss in nonhuman primates-a relevant model of human periodontitis. The ability of DEL-1 to regulate both upstream (inflammatory cell recruitment) and downstream (osteoclastogenesis) events that lead to inflammatory bone loss paves the way to a new class of endogenous therapeutics for treating periodontitis and perhaps other inflammatory disorders.
Collapse
Affiliation(s)
- Jieun Shin
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Tomoki Maekawa
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Toshiharu Abe
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Evlambia Hajishengallis
- Department of Preventive and Restorative Sciences, Division of Pediatric Dentistry, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kavita Hosur
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kalyani Pyaram
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ioannis Mitroulis
- Department of Clinical Pathobiochemistry, Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, 01307 Dresden, Germany
| | - Triantafyllos Chavakis
- Department of Clinical Pathobiochemistry, Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, 01307 Dresden, Germany
| | - George Hajishengallis
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| |
Collapse
|
30
|
Garn H, Bahn S, Baune BT, Binder EB, Bisgaard H, Chatila TA, Chavakis T, Culmsee C, Dannlowski U, Gay S, Gern J, Haahtela T, Kircher T, Müller-Ladner U, Neurath MF, Preissner KT, Reinhardt C, Rook G, Russell S, Schmeck B, Stappenbeck T, Steinhoff U, van Os J, Weiss S, Zemlin M, Renz H. Current concepts in chronic inflammatory diseases: Interactions between microbes, cellular metabolism, and inflammation. J Allergy Clin Immunol 2016; 138:47-56. [DOI: 10.1016/j.jaci.2016.02.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 02/05/2016] [Accepted: 02/25/2016] [Indexed: 12/26/2022]
|
31
|
Blood coagulation factor XII drives adaptive immunity during neuroinflammation via CD87-mediated modulation of dendritic cells. Nat Commun 2016; 7:11626. [PMID: 27188843 PMCID: PMC4873982 DOI: 10.1038/ncomms11626] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 04/14/2016] [Indexed: 12/18/2022] Open
Abstract
Aberrant immune responses represent the underlying cause of central nervous system (CNS) autoimmunity, including multiple sclerosis (MS). Recent evidence implicated the crosstalk between coagulation and immunity in CNS autoimmunity. Here we identify coagulation factor XII (FXII), the initiator of the intrinsic coagulation cascade and the kallikrein-kinin system, as a specific immune cell modulator. High levels of FXII activity are present in the plasma of MS patients during relapse. Deficiency or pharmacologic blockade of FXII renders mice less susceptible to experimental autoimmune encephalomyelitis (a model of MS) and is accompanied by reduced numbers of interleukin-17A-producing T cells. Immune activation by FXII is mediated by dendritic cells in a CD87-dependent manner and involves alterations in intracellular cyclic AMP formation. Our study demonstrates that a member of the plasmatic coagulation cascade is a key mediator of autoimmunity. FXII inhibition may provide a strategy to combat MS and other immune-related disorders.
Collapse
|
32
|
Kourtzelis I, Kotlabova K, Lim JH, Mitroulis I, Ferreira A, Chen LS, Gercken B, Steffen A, Kemter E, Klotzsche-von Ameln A, Waskow C, Hosur K, Chatzigeorgiou A, Ludwig B, Wolf E, Hajishengallis G, Chavakis T. Developmental endothelial locus-1 modulates platelet-monocyte interactions and instant blood-mediated inflammatory reaction in islet transplantation. Thromb Haemost 2016; 115:781-8. [PMID: 26676803 PMCID: PMC4818166 DOI: 10.1160/th15-05-0429] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 11/25/2015] [Indexed: 01/18/2023]
Abstract
Platelet-monocyte interactions are strongly implicated in thrombo-inflammatory injury by actively contributing to intravascular inflammation, leukocyte recruitment to inflamed sites, and the amplification of the procoagulant response. Instant blood-mediated inflammatory reaction (IBMIR) represents thrombo-inflammatory injury elicited upon pancreatic islet transplantation (islet-Tx), thereby dramatically affecting transplant survival and function. Developmental endothelial locus-1 (Del-1) is a functionally versatile endothelial cell-derived homeostatic factor with anti-inflammatory properties, but its potential role in IBMIR has not been previously addressed. Here, we establish Del-1 as a novel inhibitor of IBMIR using a whole blood-islet model and a syngeneic murine transplantation model. Indeed, Del-1 pre-treatment of blood before addition of islets diminished coagulation activation and islet damage as assessed by C-peptide release. Consistently, intraportal islet-Tx in transgenic mice with endothelial cell-specific overexpression of Del-1 resulted in a marked decrease of monocytes and platelet-monocyte aggregates in the transplanted tissues, relative to those in wild-type recipients. Mechanistically, Del-1 decreased platelet-monocyte aggregate formation, by specifically blocking the interaction between monocyte Mac-1-integrin and platelet GPIb. Our findings reveal a hitherto unknown role of Del-1 in the regulation of platelet-monocyte interplay and the subsequent heterotypic aggregate formation in the context of IBMIR. Therefore, Del-1 may represent a novel approach to prevent or mitigate the adverse reactions mediated through thrombo-inflammatory pathways in islet-Tx and perhaps other inflammatory disorders involving platelet-leukocyte aggregate formation.
Collapse
Affiliation(s)
- Ioannis Kourtzelis
- Dr. Ioannis Kourtzelis, Department of Clinical Pathobiochemistry, Medical Faculty, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany, Tel.: +49 351 4586250, E-mail:
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Immune and regulatory functions of neutrophils in inflammatory bone loss. Semin Immunol 2016; 28:146-58. [PMID: 26936034 DOI: 10.1016/j.smim.2016.02.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 02/06/2016] [Accepted: 02/14/2016] [Indexed: 02/06/2023]
Abstract
Although historically viewed as merely anti-microbial effectors in acute infection or injury, neutrophils are now appreciated to be functionally versatile with critical roles also in chronic inflammation. Periodontitis, a chronic inflammatory disease that destroys the tooth-supporting gums and bone, is particularly affected by alterations in neutrophil numbers or function, as revealed by observations in monogenic disorders and relevant mouse models. Besides being a significant debilitating disease and health burden in its own right, periodontitis is thus an attractive model to dissect uncharted neutrophil-associated (patho)physiological pathways. Here, we summarize recent evidence that neutrophils can contribute to inflammatory bone loss not only through the typical bystander injury dogma but intriguingly also through their absence from the affected tissue, where they normally perform important immunomodulatory functions. Moreover, we discuss recent advances in the interactions of neutrophils with the vascular endothelium and - upon extravasation - with bacteria, and how the dysregulation of these interactions leads to inflammatory tissue damage. Overall, neutrophils have both protective and destructive roles in periodontitis, as they are involved in both the maintenance of periodontal tissue homeostasis and the induction of inflammatory bone loss. This highlights the importance of developing approaches that promote or sustain a fine balance between homeostatic immunity and inflammatory pathology.
Collapse
|
34
|
Maekawa T, Hosur K, Abe T, Kantarci A, Ziogas A, Wang B, Van Dyke TE, Chavakis T, Hajishengallis G. Antagonistic effects of IL-17 and D-resolvins on endothelial Del-1 expression through a GSK-3β-C/EBPβ pathway. Nat Commun 2015; 6:8272. [PMID: 26374165 PMCID: PMC4573473 DOI: 10.1038/ncomms9272] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 08/04/2015] [Indexed: 01/17/2023] Open
Abstract
Del-1 is an endothelial cell-secreted anti-inflammatory protein. In humans and mice, Del-1 expression is inversely related to that of IL-17, which inhibits Del-1 through hitherto unidentified mechanism(s). Here we show that IL-17 downregulates human endothelial cell expression of Del-1 by targeting a critical transcription factor, C/EBPβ. Specifically, IL-17 causes GSK-3β-dependent phosphorylation of C/EBPβ, which is associated with diminished C/EBPβ binding to the Del-1 promoter and suppressed Del-1 expression. This inhibitory action of IL-17 can be reversed at the GSK-3β level by PI3K/Akt signalling induced by D-resolvins. The biological relevance of this regulatory network is confirmed in a mouse model of inflammatory periodontitis. Intriguingly, resolvin-D1 (RvD1) confers protection against IL-17-driven periodontal bone loss in a Del-1-dependent manner, indicating an RvD1-Del-1 axis against IL-17-induced pathological inflammation. The dissection of signalling pathways regulating Del-1 expression provides potential targets to treat inflammatory diseases associated with diminished Del-1 expression, such as periodontitis and multiple sclerosis.
Collapse
Affiliation(s)
- Tomoki Maekawa
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, 240 S. 40th Street, Philadelphia, Pennsylvania 19104, USA.,Niigata University, Graduate School of Medical and Dental Sciences, Research Center for Advanced Oral Science, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan
| | - Kavita Hosur
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, 240 S. 40th Street, Philadelphia, Pennsylvania 19104, USA
| | - Toshiharu Abe
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, 240 S. 40th Street, Philadelphia, Pennsylvania 19104, USA
| | - Alpdogan Kantarci
- Department of Applied Oral Sciences, Center for Periodontology, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts 02142, USA
| | - Athanasios Ziogas
- Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
| | - Baomei Wang
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, 240 S. 40th Street, Philadelphia, Pennsylvania 19104, USA
| | - Thomas E Van Dyke
- Department of Applied Oral Sciences, Center for Periodontology, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts 02142, USA
| | - Triantafyllos Chavakis
- Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
| | - George Hajishengallis
- Department of Microbiology, Penn Dental Medicine, University of Pennsylvania, 240 S. 40th Street, Philadelphia, Pennsylvania 19104, USA
| |
Collapse
|
35
|
Developmental endothelial locus-1 is a homeostatic factor in the central nervous system limiting neuroinflammation and demyelination. Mol Psychiatry 2015; 20:880-888. [PMID: 25385367 PMCID: PMC4351922 DOI: 10.1038/mp.2014.146] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 09/01/2014] [Accepted: 09/29/2014] [Indexed: 01/05/2023]
Abstract
Inflammation in the central nervous system (CNS) and disruption of its immune privilege are major contributors to the pathogenesis of multiple sclerosis (MS) and of its rodent counterpart, experimental autoimmune encephalomyelitis (EAE). We have previously identified developmental endothelial locus-1 (Del-1) as an endogenous anti-inflammatory factor, which inhibits integrin-dependent leukocyte adhesion. Here we show that Del-1 contributes to the immune privilege status of the CNS. Intriguingly, Del-1 expression decreased in chronic-active MS lesions and in the inflamed CNS in the course of EAE. Del-1-deficiency was associated with increased EAE severity, accompanied by increased demyelination and axonal loss. As compared with control mice, Del-1(-/-) mice displayed enhanced disruption of the blood-brain barrier and increased infiltration of neutrophil granulocytes in the spinal cord in the course of EAE, accompanied by elevated levels of inflammatory cytokines, including interleukin-17 (IL-17). The augmented levels of IL-17 in Del-1-deficiency derived predominantly from infiltrated CD8(+) T cells. Increased EAE severity and neutrophil infiltration because of Del-1-deficiency was reversed in mice lacking both Del-1 and IL-17 receptor, indicating a crucial role for the IL-17/neutrophil inflammatory axis in EAE pathogenesis in Del-1(-/-) mice. Strikingly, systemic administration of Del-1-Fc ameliorated clinical relapse in relapsing-remitting EAE. Therefore, Del-1 is an endogenous homeostatic factor in the CNS protecting from neuroinflammation and demyelination. Our findings provide mechanistic underpinnings for the previous implication of Del-1 as a candidate MS susceptibility gene and suggest that Del-1-centered therapeutic approaches may be beneficial in neuroinflammatory and demyelinating disorders.
Collapse
|
36
|
Kourtzelis I, Ferreira A, Mitroulis I, Ricklin D, Bornstein SR, Waskow C, Lambris JD, Chavakis T. Complement inhibition in a xenogeneic model of interactions between human whole blood and porcine endothelium. Horm Metab Res 2015; 47:36-42. [PMID: 25350518 PMCID: PMC4383746 DOI: 10.1055/s-0034-1390452] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Xenotransplantation (xeno-Tx) is considered as an alternative solution to overcome the shortage of human donor organs. However, the success of xeno-Tx is hindered by immune reactions against xenogeneic cells (e. g. of porcine origin). More specifically, activation of innate immune mechanisms such as complement and triggering of the coagulation cascade occur shortly after xeno-Tx, and adhesion of human leukocytes to porcine endothelium is another early critical step mediating the immune attack. To investigate the therapeutic potential of complement inhibition in the context of xenogeneic interactions, we have employed a whole-blood model in the present study. Incubation of human blood with porcine endothelial cells (PAECs) led to activation of complement and coagulation as well as to increased leukocyte adhesion. The observed responses can be attributed to the pig-to-human xenogeneicity, since the presence of human endothelium induced a minor cellular and plasmatic inflammatory response. Importantly, complement inhibition using a potent complement C3 inhibitor, compstatin analogue Cp40, abrogated the adhesion of leukocytes and, more specifically, the attachment of neutrophils to porcine endothelium. Moreover, Cp40 inhibited the activation of PAECs and leukocytes, since the levels of the adhesion molecules E-selectin, ICAM-1, ICAM-2, and VCAM-1 on PAECs and the surface expression of integrin CD11b on neutrophils were significantly decreased. Along the same line, inhibition of CD11b resulted in decreased leukocyte adhesion. Taken together, our findings provide a better understanding of the mechanisms regulating the acute innate immune complications in the context of xeno-Tx and could pave the way for complement-targeting therapeutic interventions.
Collapse
Affiliation(s)
- I. Kourtzelis
- Department of Clinical Pathobiochemistry, Technische Universität Dresden, Dresden, Germany
| | - A. Ferreira
- Department of Clinical Pathobiochemistry, Technische Universität Dresden, Dresden, Germany
| | - I. Mitroulis
- Department of Clinical Pathobiochemistry, Technische Universität Dresden, Dresden, Germany
- Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
| | - D. Ricklin
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - S. R. Bornstein
- Department of Internal Medicine, Technische Universität Dresden, Dresden, Germany
| | - C. Waskow
- Regeneration in Hematopoiesis and Animal Models in Hematopoiesis, Institute of Immunology, Medical Faculty, Technische Universität Dresden, Dresden, Germany
| | - J. D. Lambris
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - T. Chavakis
- Department of Clinical Pathobiochemistry, Technische Universität Dresden, Dresden, Germany
- Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
- Department of Internal Medicine, Technische Universität Dresden, Dresden, Germany
| |
Collapse
|
37
|
Kourtzelis I, Magnusson PU, Kotlabova K, Lambris JD, Chavakis T. Regulation of Instant Blood Mediated Inflammatory Reaction (IBMIR) in Pancreatic Islet Xeno-Transplantation: Points for Therapeutic Interventions. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 865:171-88. [DOI: 10.1007/978-3-319-18603-0_11] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
38
|
Hajishengallis G, Chavakis T, Hajishengallis E, Lambris JD. Neutrophil homeostasis and inflammation: novel paradigms from studying periodontitis. J Leukoc Biol 2014; 98:539-48. [PMID: 25548253 DOI: 10.1189/jlb.3vmr1014-468r] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 11/28/2014] [Indexed: 12/30/2022] Open
Abstract
Once viewed as simply antibacterial effector cells packed with antimicrobials, neutrophils are now increasingly appreciated for their regulatory roles in immunity and inflammation. The homeostatic regulation of neutrophils is thus crucial for optimal operation of the immune system. An attractive model to understand mechanistically the role of neutrophils is periodontitis, an oral inflammatory disease that is particularly sensitive to neutrophil alterations in numbers or function. The recruitment and proper activation of neutrophils are largely dependent on leukocyte integrins and complement. This review discusses how these processes are affected by host genetic or microbial factors leading to the development of periodontitis. For instance, both hypo- and hyper-recruitment of neutrophils as a result of deficiencies in the expression of β2 integrins or their negative regulators, respectively, causes unwarranted IL-17-dependent inflammatory bone loss. Moreover, microbial hijacking of C5aR (CD88) signaling in neutrophils impairs their antimicrobial function while promoting destructive inflammatory responses. These studies not only support the concept that neutrophil homeostasis is key to periodontal health but also reveal promising, new therapeutic targets as discussed in the review.
Collapse
Affiliation(s)
- George Hajishengallis
- Departments of *Microbiology and Preventive and Restorative Sciences, Division of Pediatric Dentistry, Penn Dental Medicine, and Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA; and Technische Universität Dresden, Faculty of Medicine, Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Dresden, Germany
| | - Triantafyllos Chavakis
- Departments of *Microbiology and Preventive and Restorative Sciences, Division of Pediatric Dentistry, Penn Dental Medicine, and Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA; and Technische Universität Dresden, Faculty of Medicine, Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Dresden, Germany
| | - Evlambia Hajishengallis
- Departments of *Microbiology and Preventive and Restorative Sciences, Division of Pediatric Dentistry, Penn Dental Medicine, and Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA; and Technische Universität Dresden, Faculty of Medicine, Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Dresden, Germany
| | - John D Lambris
- Departments of *Microbiology and Preventive and Restorative Sciences, Division of Pediatric Dentistry, Penn Dental Medicine, and Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA; and Technische Universität Dresden, Faculty of Medicine, Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Dresden, Germany
| |
Collapse
|
39
|
Mitroulis I, Alexaki VI, Kourtzelis I, Ziogas A, Hajishengallis G, Chavakis T. Leukocyte integrins: role in leukocyte recruitment and as therapeutic targets in inflammatory disease. Pharmacol Ther 2014; 147:123-135. [PMID: 25448040 DOI: 10.1016/j.pharmthera.2014.11.008] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 11/06/2014] [Indexed: 02/06/2023]
Abstract
Infection or sterile inflammation triggers site-specific attraction of leukocytes. Leukocyte recruitment is a process comprising several steps orchestrated by adhesion molecules, chemokines, cytokines and endogenous regulatory molecules. Distinct adhesive interactions between endothelial cells and leukocytes and signaling mechanisms contribute to the temporal and spatial fine-tuning of the leukocyte adhesion cascade. Central players in the leukocyte adhesion cascade include the leukocyte adhesion receptors of the β2-integrin family, such as the αLβ2 and αMβ2 integrins, or of the β1-integrin family, such as the α4β1-integrin. Given the central involvement of leukocyte recruitment in different inflammatory and autoimmune diseases, the leukocyte adhesion cascade in general, and leukocyte integrins in particular, represent key therapeutic targets. In this context, the present review focuses on the role of leukocyte integrins in the leukocyte adhesion cascade. Experimental evidence that has implicated leukocyte integrins as targets in animal models of inflammatory disorders, such as experimental autoimmune encephalomyelitis, psoriasis, inflammatory bone loss and inflammatory bowel disease as well as preclinical and clinical therapeutic applications of antibodies that target leukocyte integrins in various inflammatory disorders are presented. Finally, we review recent findings on endogenous inhibitors that modify leukocyte integrin function, which could emerge as promising therapeutic targets.
Collapse
Affiliation(s)
- Ioannis Mitroulis
- Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Vasileia I Alexaki
- Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Ioannis Kourtzelis
- Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Athanassios Ziogas
- Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - George Hajishengallis
- Department of Microbiology, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Triantafyllos Chavakis
- Department of Clinical Pathobiochemistry and Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| |
Collapse
|