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Wang Z, Dayang EZ, Zwiers PJ, Hernandez Garcia ML, Luxen M, van Meurs M, Moser J, Kamps JAAM, Molema G. Heterogeneous Patterns of Endothelial NF-κB p65 and MAPK c-Jun Activation, Adhesion Molecule Expression, and Leukocyte Recruitment in Lung Microvasculature of Mice with Sepsis. Biomedicines 2024; 12:1672. [PMID: 39200137 PMCID: PMC11351379 DOI: 10.3390/biomedicines12081672] [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: 06/14/2024] [Revised: 07/14/2024] [Accepted: 07/16/2024] [Indexed: 09/01/2024] Open
Abstract
BACKGROUND Sepsis is an uncontrolled systemic inflammatory response to an infection that can result in acute failure of the function of the lung called acute respiratory distress syndrome. Leukocyte recruitment is an important hallmark of acute lung failure in patients with sepsis. Endothelial cells (EC) participate in this process by facilitating tethering, rolling, adhesion, and transmigration of leukocytes via adhesion molecules on their cell surface. In in vivo studies, endothelial nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) p65 and mitogen-activated protein kinase (MAPK) c-Jun intracellular signal transduction pathways were reported to regulate the expression of adhesion molecules. METHODS Mice underwent cecal ligation and puncture (CLP) to induce polymicrobial sepsis and were sacrificed at different time points up to 72 h after sepsis onset. Immunohistochemistry and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analyses were used to determine the kinetics of nuclear localization of p65 and c-Jun in EC, expression and location of adhesion molecules E-selectin and vascular cell adhesion molecule 1 (VCAM-1). Furthermore, the extent and location of leukocyte recruitment were assessed based on Ly6G staining of neutrophils, cluster determinant (CD) 3 staining of T lymphocytes, and CD68 staining of macrophages. RESULTS In all pulmonary microvascular beds, we identified p65 and c-Jun nuclear accumulation in a subset of endothelial cells within the first 24 h after CLP-sepsis initiation. E-selectin protein was expressed in a subset of microvessels at 4 and 7 h after sepsis initiation, while VCAM-1 was expressed in a scattered pattern in alveolar tissue and microvessels, without discernible changes during sepsis development. CLP-induced sepsis predominantly promoted the accumulation of neutrophils and T lymphocytes 4 and 7 h after disease onset. Neutrophil accumulation occurred in all pulmonary microvascular beds, while T lymphocytes were present in alveolar tissue and postcapillary venules. Taken together, nuclear localization of p65 and c-Jun in EC and neutrophil recruitment could be associated with induced E-selectin expression in the pulmonary microvessels in CLP-septic mice at the early stage of the disease. In alveolar capillaries, on the other hand, activation of these molecular pathways and leukocyte accumulation occurred in the absence of E-selectin or VCAM-1. CONCLUSIONS Endothelial activation and leukocyte recruitment in sepsis-induced lung injury are regulated by multiple, heterogeneously controlled mechanisms, which vary depending on the type of microvascular bed involved.
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Affiliation(s)
- Zhendong Wang
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
| | - Erna-Zulaikha Dayang
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
| | - Peter J. Zwiers
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
| | - Martha L. Hernandez Garcia
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
| | - Matthijs Luxen
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Matijs van Meurs
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Jill Moser
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Jan A. A. M. Kamps
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
| | - Grietje Molema
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; (Z.W.); (E.-Z.D.); (M.L.H.G.); (M.L.); (M.v.M.); (J.M.); (J.A.A.M.K.)
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Kaur G, Sharma D, Bisen S, Mukhopadhyay CS, Gurdziel K, Singh NK. Vascular cell-adhesion molecule 1 (VCAM-1) regulates JunB-mediated IL-8/CXCL1 expression and pathological neovascularization. Commun Biol 2023; 6:516. [PMID: 37179352 PMCID: PMC10183029 DOI: 10.1038/s42003-023-04905-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Vascular adhesion molecules play an important role in various immunological disorders, particularly in cancers. However, little is known regarding the role of these adhesion molecules in proliferative retinopathies. We observed that IL-33 regulates VCAM-1 expression in human retinal endothelial cells and that genetic deletion of IL-33 reduces hypoxia-induced VCAM-1 expression and retinal neovascularization in C57BL/6 mice. We found that VCAM-1 via JunB regulates IL-8 promoter activity and expression in human retinal endothelial cells. In addition, our study outlines the regulatory role of VCAM-1-JunB-IL-8 signaling on retinal endothelial cell sprouting and angiogenesis. Our RNA sequencing results show an induced expression of CXCL1 (a murine functional homolog of IL-8) in the hypoxic retina, and intravitreal injection of VCAM-1 siRNA not only decreases hypoxia-induced VCAM-1-JunB-CXCL1 signaling but also reduces OIR-induced sprouting and retinal neovascularization. These findings suggest that VCAM-1-JunB-IL-8 signaling plays a crucial role in retinal neovascularization, and its antagonism might provide an advanced treatment option for proliferative retinopathies.
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Affiliation(s)
- Geetika Kaur
- Integrative Biosciences Center, Wayne State University, Detroit, MI, 48202, USA
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI, 48202, USA
| | - Deepti Sharma
- Integrative Biosciences Center, Wayne State University, Detroit, MI, 48202, USA
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI, 48202, USA
| | - Shivantika Bisen
- Integrative Biosciences Center, Wayne State University, Detroit, MI, 48202, USA
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI, 48202, USA
| | - Chandra Sekhar Mukhopadhyay
- School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, 141004, India
| | - Katherine Gurdziel
- Institute of Environmental Health Sciences and Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA
| | - Nikhlesh K Singh
- Integrative Biosciences Center, Wayne State University, Detroit, MI, 48202, USA.
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI, 48202, USA.
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Jiang L, Yang A, Li X, Liu K, Tan J. Down-regulation of VCAM-1 in bone mesenchymal stem cells reduces inflammatory responses and apoptosis to improve cardiac function in rat with myocardial infarction. Int Immunopharmacol 2021; 101:108180. [PMID: 34607225 DOI: 10.1016/j.intimp.2021.108180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 09/15/2021] [Accepted: 09/18/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Bone mesenchymal stem cells (BMSCs) has been well known to exert therapeutic potential for patients with myocardial infarction (MI). VCAM-1 can promote the migration of lymphocytes to the inflammatory zone. In the present study, we tried to explore whether VCAM-1 silenced-BMSCs have better therapeutic effects on MI. METHODS BMSCs were isolated and cultured followed by treatment of a lentivirus silencing VCAM-1 and NF-κB activator (PMA). Besides, MI rat models were also established and injected with treated BMSCs to detect the effect of VCAM-1 silenced-BMSCs in MI, as evidenced by detection of cardiac function, survival of rats within 72 h, infarct size and myocardial cell apoptosis. Moreover, the expression of NF-κB-regulated gene products was also determined. RESULTS The implantation of sh-VCAM-1 BMSCs into MI rats resulted in more reductions in myocardial infarct size as well as myocardial cell apoptosis, improved cardiac function, the number of survived rats within 72 h, and survival time within 72 h compared with the individual treatments of either BMSCs or control. In addition, transplanted BMSCs down-regulated the expression of NF-κB-p65, MMP-9, TNF-α, and Bax, and up-regulated VEGF and Bcl-2 in myocardial tissue, which could be further enhanced by sh-VCAM-1 and rescued by PMA. CONCLUSION Our study demonstrated that silencing VCAM-1 in BMSCs could inhibit inflammation and apoptosis, thus improving cardiac function in MI.
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Affiliation(s)
- Lu Jiang
- Department of Cardiac Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Aidi Yang
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China; Operation Room, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xi Li
- Department of Cardiac Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Ke Liu
- Department of Cardiac Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Jin Tan
- Department of Cardiac Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China.
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Sato N, Matsumoto T, Kawaguchi S, Seya K, Matsumiya T, Ding J, Aizawa T, Imaizumi T. Porphyromonas gingivalis lipopolysaccharide induces interleukin-6 and c-c motif chemokine ligand 2 expression in cultured hCMEC/D3 human brain microvascular endothelial cells. Gerodontology 2021; 39:139-147. [PMID: 33599317 DOI: 10.1111/ger.12545] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 12/14/2020] [Accepted: 02/06/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE This paper describes the effect of Porphyromonas gingivalis (P gingivalis) lipopolysaccharide (LPS) on the expression of interleukin-6 (IL-6) and C-C motif chemokine ligand 2 (CCL2) in cultured hCMEC/D3 human brain microvascular endothelial cells. BACKGROUND P gingivalis is one of the important pathogens in periodontitis, and periodontitis is a risk factor for brain disorders including cerebrovascular diseases and Alzheimer's disease. However, the mechanisms underlying the pathogenesis of P gingivalis-mediated brain diseases are incompletely understood. Effects of P gingivalis LPS on brain endothelial cells are not known well. METHODS The hCMEC/D3 human brain microvascular endothelial cells were cultured and treated with P gingivalis LPS. The expression of IL-6 and CCL2 mRNA and protein was examined using quantitative reverse transcription-polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. Effect of inhibitors of Toll-like receptor (TLR) 2, TLR4, nuclear factor-κB (NF-κB), p38 mitogen-activated protein kinase (MAPK) and c-Jun N-terminal kinase (JNK) was also investigated. Phosphorylation of NF-κB p65, p38 MAPK and JNK was examined using Western blotting. RESULTS P gingivalis LPS-induced mRNA and protein expression of IL-6 and CCL2 in hCMEC/D3 cells in a concentration-dependent manner at the concentration of 0.5-50 µg/mL. Maximal mRNA expression of IL-6 and CCL2 was found 2 and 4 hours after stimulation, respectively. Induction of IL-6 and CCL2 by P gingivalis LPS was almost completely inhibited by pretreatment of cells with TLR4 inhibitor but not by TLR2 inhibitor. Treatment of cells with P gingivalis LPS for up to 2 hours induced phosphorylation of NF-κB p65, p38 MAPK and JNK. IL-6 induction was decreased by pretreatment of cells with NF-κB inhibitor SN50 or p38 MAPK inhibitor SB203580, while CCL2 induction was reduced by SN50 or JNK inhibitor SP600125. CONCLUSIONS IL-6 and CCL2 produced upon P gingivalis LPS stimulation may contribute to the inflammatory reactions in brain endothelial cells and subsequent neurological disorders such as cerebrovascular and Alzheimer's diseases.
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Affiliation(s)
- Natsu Sato
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takeshi Matsumoto
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shogo Kawaguchi
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kazuhiko Seya
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tomoh Matsumiya
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Jiangli Ding
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tomomi Aizawa
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tadaatsu Imaizumi
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Sun J, Tang Q, Yu S, Xie M, Xie Y, Chen G, Chen L. Role of the oral microbiota in cancer evolution and progression. Cancer Med 2020; 9:6306-6321. [PMID: 32638533 PMCID: PMC7476822 DOI: 10.1002/cam4.3206] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 12/14/2022] Open
Abstract
Bacteria identified in the oral cavity are highly complicated. They include approximately 1000 species with a diverse variety of commensal microbes that play crucial roles in the health status of individuals. Epidemiological studies related to molecular pathology have revealed that there is a close relationship between oral microbiota and tumor occurrence. Oral microbiota has attracted considerable attention for its role in in‐situ or distant tumor progression. Anaerobic oral bacteria with potential pathogenic abilities, especially Fusobacterium nucleatum and Porphyromonas gingivalis, are well studied and have close relationships with various types of carcinomas. Some aerobic bacteria such as Parvimonas are also linked to tumorigenesis. Moreover, human papillomavirus, oral fungi, and parasites are closely associated with oropharyngeal carcinoma. Microbial dysbiosis, colonization, and translocation of oral microbiota are necessary for implementation of carcinogenic functions. Various underlying mechanisms of oral microbiota‐induced carcinogenesis have been reported including excessive inflammatory reaction, immunosuppression of host, promotion of malignant transformation, antiapoptotic activity, and secretion of carcinogens. In this review, we have systemically described the impact of oral microbial abnormalities on carcinogenesis and the future directions in this field for bringing in new ideas for effective prevention of tumors.
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Affiliation(s)
- Jiwei Sun
- Department of Stomatology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Qingming Tang
- Department of Stomatology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Shaoling Yu
- Department of Stomatology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Mengru Xie
- Department of Stomatology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Yanling Xie
- Department of Stomatology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Guangjin Chen
- Department of Stomatology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Lili Chen
- Department of Stomatology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
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Wu Y, Xu W, Hou J, Liu Y, Li R, Liu J, Li C, Tang X, Lin L, Pan Y, Zhang D. Porphyromonas gingivalis-Induced MIF Regulates Intercellular Adhesion Molecule-1 Expression in EA.hy926 Cells and Monocyte-Endothelial Cell Adhesion Through the Receptors CD74 and CXCR4. Inflammation 2019; 42:874-883. [PMID: 30506423 PMCID: PMC6527533 DOI: 10.1007/s10753-018-0942-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Porphyromonas gingivalis (P. gingivalis) is an important pathogen that contributes to periodontal disease and causes infections that promote the progression of atherosclerosis. Our previous studies showed that macrophage migration inhibitory factor (MIF) facilitates monocyte adhesion to endothelial cells by regulating the expression of intercellular adhesion molecule-1 (ICAM-1) in P. gingivalis-infected endothelial cells. However, the detailed pathological role of MIF has yet to be elucidated in this context. To explore the functional receptor(s) of MIF that underlie its participation in the pathogenesis of atherosclerosis, we investigated the expression of the chemokine receptors CD74 and CXCR4 in endothelial cells, both of which were shown to be involved in the adhesion of monocytes to endothelial cells pretreated with P. gingivalis. Furthermore, the formation of a MIF, CD74, and CXCR4 ligand-receptor complex was revealed by our immunofluorescence staining and coimmunoprecipitation results. By interacting with the CD74/CXCR4 receptor complex, MIF may act as a crucial regulator of monocyte-endothelial cell adhesion and promote the atherosclerotic plaque formation induced by P. gingivalis.
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Affiliation(s)
- Yun Wu
- Department of Periodontics, School of Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Wanyue Xu
- Department of Periodontics, School of Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Jingya Hou
- Department of Periodontics, School of Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Yanqing Liu
- Department of Periodontics, School of Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Rong Li
- Department of Periodontics, School of Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Jingbo Liu
- Department of Periodontics and Oral Biology, School of
Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Chen Li
- Department of Periodontics and Oral Biology, School of
Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Xiaolin Tang
- Department of Periodontics and Oral Biology, School of
Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Li Lin
- Department of Periodontics and Oral Biology, School of
Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Yaping Pan
- Department of Periodontics and Oral Biology, School of
Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
| | - Dongmei Zhang
- Department of Periodontics and Oral Biology, School of
Stomatology, China Medical University, Heping District, Nanjing North Street No.117, Shenyang, 110002 China
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Jia L, Han N, Du J, Guo L, Luo Z, Liu Y. Pathogenesis of Important Virulence Factors of Porphyromonas gingivalis via Toll-Like Receptors. Front Cell Infect Microbiol 2019; 9:262. [PMID: 31380305 PMCID: PMC6657652 DOI: 10.3389/fcimb.2019.00262] [Citation(s) in RCA: 144] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 07/04/2019] [Indexed: 12/18/2022] Open
Abstract
Periodontitis is a common intraoral infection and is inextricably linked to systemic diseases. Recently, the regulation between host immunologic response and periodontal pathogens has become a hotspot to explain the mechanism of periodontitis and related systemic diseases. Since Porphyromonas gingivalis (P. gingivalis) was proved as critical periodontal pathogen above all, researches focusing on the mechanism of its virulence factors have received extensive attention. Studies have shown that in the development of periodontitis, in addition to the direct release of virulent factors by periodontal pathogens to destroy periodontal tissues, over-low or over-high intrinsic immune and inflammatory response mediated by Toll-like receptors (TLRs) can lead to more lasting destruction of periodontal tissues. It is very necessary to sort out how various cytopathic factors of P. gingivalis mediate inflammation and immune responses between the host through TLRs so as to help precisely prevent, diagnose, and treat periodontitis in clinic. This review summarizes the role of three most widely studied pathogenic factors produced by P. gingivalis (lipopolysaccharide, gingipains, pili) and their interactions with TLRs at the cellular and molecular level in the progress of periodontitis.
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Affiliation(s)
- Lu Jia
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Nannan Han
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Juan Du
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Lijia Guo
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China
| | - Zhenhua Luo
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
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Chen Y, Zhou R, Yi Z, Li Y, Fu Y, Zhang Y, Li P, Li X, Pan Y. Porphyromonas gingivalis induced inflammatory responses and promoted apoptosis in lung epithelial cells infected with H1N1 via the Bcl‑2/Bax/Caspase‑3 signaling pathway. Mol Med Rep 2018; 18:97-104. [PMID: 29750299 PMCID: PMC6059728 DOI: 10.3892/mmr.2018.8983] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 03/28/2018] [Indexed: 12/12/2022] Open
Abstract
The aim of the present study was to investigate the effects of Porphyromonas gingivalis (P. gingivalis) on inflammatory cytokine and nitic oxide (NO) production in lung epithelial cells infected with H1N1, and the underlying mechanisms. Lung epithelial cells were co-infected with P. gingivalis and H1N1. The concentrations of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β and IL-6 were detected via an ELISA, and the concentration of NO was detected by the nitrate reductive enzymatic method at 4, 8, 12 and 24 h following infection. The expression levels of inducible NO synthase (iNOS) was detected by western blotting. The apoptotic rate of lung epithelial cells was detected by flow cytometry. The relative protein expression levels of B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax) and caspase-3 in lung epithelial cells were detected by western blotting. Compared with the control group, the concentration of the inflammatory cytokines TNF-α, IL-1β and IL-6 exhibited a significant increase (P<0.05) in the viral-infected, bacterial-infected and co-infected groups. The concentration of NO also increased significantly (P<0.05), along with the rise in the expression levels of iNOS (P<0.05) and the increase in the apoptosis rate of lung epithelial cells (P<0.05). The relative expression levels of caspase-3 and Bax proteins were increased significantly in the viral- and bacterial-infected groups when compared with the control. The relative expression levels of Bcl-2 protein exhibited a significant decrease in lung epithelial cells following the co-infection with P. gingivalis and H1N1 compared with the control (P<0.05). The results of the present study revealed that the combination of P. gingivalis and H1N1 infection in lung epithelial cells may promote the production of inflammatory cytokines and increase NO production, leading to increased levels of apoptosis in lung epithelial cells via the Bcl-2/Bax/caspase-3 signaling pathway.
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Affiliation(s)
- Yongju Chen
- School of Stomatology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Rui Zhou
- Department of Stomatology, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Zhe Yi
- Department of Stomatology, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
| | - Yonggang Li
- Department of Pathogeny Biology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Ying Fu
- Department of Stomatology, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Yibo Zhang
- Department of Pathogeny Biology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Ping Li
- School of Stomatology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Xin Li
- School of Stomatology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Yaping Pan
- Department of Stomatology, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
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9
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Sharma M, Patterson L, Chapman E, Flood PM. Salmeterol, a Long-Acting β2-Adrenergic Receptor Agonist, Inhibits Macrophage Activation by Lipopolysaccharide From Porphyromonas gingivalis. J Periodontol 2017; 88:681-692. [PMID: 28398147 DOI: 10.1902/jop.2017.160464] [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] [Indexed: 12/11/2022]
Abstract
BACKGROUND Salmeterol is a long-acting β2-adrenergic receptor agonist used to treat chronic obstructive pulmonary disease. The authors of the current study previously showed that preincubation of primary microglial-enriched cells with salmeterol could inhibit the inflammatory response induced by Escherichia coli lipopolysaccharide (LPS), a Toll-like receptor (TLR)-4 agonist. In this study, the authors sought to determine if salmeterol had a similar inhibitory effect on the inflammatory response of the murine macrophage cell line RAW264.7 and human monocyte THP-1 to LPS from Porphyromonas gingivalis (PgLPS), an oral microbe implicated in the pathogenesis of periodontal disease. METHODS RAW264.7 and THP-1 cells were pretreated with salmeterol, followed by PgLPS, and monitored for production of inflammatory mediators by enzyme-linked immunosorbent assay. The nitric oxide concentration and nuclear factor-kappa B (NF-κB) activity were measured by Griess method and secretory alkaline phosphatase reporter activity assay, respectively. Reverse-transcriptase polymerase chain reaction and immunoblot analysis were used to measure messenger RNA and protein levels. Nuclear translocation of NF-κB was detected by immunofluorescence. RESULTS Pretreatment with salmeterol significantly inhibited production of proinflammatory mediators by RAW264.7 and THP-1 cells. Salmeterol downregulated PgLPS-mediated phosphorylation of the extracellular signal-regulated kinase 1/2 and c-Jun N-terminal kinase but not p38 mitogen-activated protein kinases (MAPKs). Salmeterol also attenuated activation of NF-κB via inhibition of nuclear translocation of p65-NFκB, the transcriptional activity of NF-κB and IκBα phosphorylation. CONCLUSION Salmeterol can significantly inhibit activation of macrophage-mediated inflammation by PgLPS, suggesting that use of salmeterol may be an effective treatment in inhibiting or lessening the inflammatory response mediated through TLR pathway activation.
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Affiliation(s)
- Monika Sharma
- Department of Dentistry, Faculty of Medicine and Dentistry, Katz Group Center for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta
| | - Lindsay Patterson
- Department of Dentistry, Faculty of Medicine and Dentistry, Katz Group Center for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta
| | - Elisha Chapman
- Department of Dentistry, Faculty of Medicine and Dentistry, Katz Group Center for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta
| | - Patrick M Flood
- Department of Dentistry, Faculty of Medicine and Dentistry, Katz Group Center for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta
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10
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The regulation of Jmjd3 upon the expression of NF-κB downstream inflammatory genes in LPS activated vascular endothelial cells. Biochem Biophys Res Commun 2017; 485:62-68. [DOI: 10.1016/j.bbrc.2017.02.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 02/05/2017] [Indexed: 12/21/2022]
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11
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Yang PF, Song XY, Zeng T, Ai QD, Liu DD, Zuo W, Zhang S, Xia CY, He X, Chen NH. IMM-H004, a coumarin derivative, attenuated brain ischemia/reperfusion injuries and subsequent inflammation in spontaneously hypertensive rats through inhibition of VCAM-1. RSC Adv 2017. [DOI: 10.1039/c7ra02154b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
We studied the effect of IMM-H004 in treating brain I/R injury in spontaneously hypertensive rats and showed that IMM-H004 could efficiently ameliorate neurological defects and infarct volume in a time and dose dependent manner.
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Affiliation(s)
- Peng-Fei Yang
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Xiu-Yun Song
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Ting Zeng
- College of Pharmacy
- Hunan University of Chinese Medicine
- Changsha
- China
| | - Qi-Di Ai
- College of Pharmacy
- Hunan University of Chinese Medicine
- Changsha
- China
| | - Dan-Dan Liu
- Tianjin University of Traditional Chinese Medicine
- Tianjin
- China
| | - Wei Zuo
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Shuai Zhang
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Cong-Yuan Xia
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Xin He
- Tianjin University of Traditional Chinese Medicine
- Tianjin
- China
| | - Nai-Hong Chen
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
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12
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EOLA1 Inhibits Lipopolysaccharide-Induced Vascular Cell Adhesion Molecule-1 Expression by Association with MT2A in ECV304 Cells. Int J Inflam 2015; 2015:301562. [PMID: 26881174 PMCID: PMC4736203 DOI: 10.1155/2015/301562] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 12/02/2015] [Accepted: 12/14/2015] [Indexed: 01/25/2023] Open
Abstract
Our research group firstly discovered endothelial-overexpressed lipopolysaccharide-associated factor 1 (EOLA1, GenBank number AY074889) as a lipopolysaccharide (LPS) responsive gene in ECV304 cells. The previous studies have further demonstrated the association of EOLA1 with metallothionein 2A (MT2A), while the role of EOLA1 during LPS-induced inflammatory response in ECV304 cells is unknown. In this report, we determined the subcellular localization of EOLA1 and the regulatory capacity of EOLA1 on vascular cell adhesion molecule-1 (VCAM-1) in response to LPS in ECV304 cells. Our results show that EOLA1 is broadly diffuse in the cells, and EOLA1 expression is dramatically induced by LPS. EOLA1 knockdown results in significant enhancement of LPS-induced VCAM-1 production. Consistent with this, overexpression of EOLA1 leads to the reduction of LPS-induced VCAM-1 production. Furthermore, MT2A knockdown reduces LPS-induced VCAM-1 production. Collectively, our results demonstrate a negative regulatory role of EOLA1 on LPS-induced VCAM-1 expression involving its association with MT2A in ECV304 cells.
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Mu W, Chen M, Gong Z, Zheng F, Xing Q. Expression of vascular cell adhesion molecule-1 in the aortic tissues of atherosclerotic patients and the associated clinical implications. Exp Ther Med 2015; 10:423-428. [PMID: 26622332 PMCID: PMC4509110 DOI: 10.3892/etm.2015.2540] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 04/13/2015] [Indexed: 11/05/2022] Open
Abstract
The aim of this study was to investigate the expression level of vascular cell adhesion molecule-1 (VCAM-1) in the aortic tissues of atherosclerotic patients and to explore the associated clinical implications. Full-thickness aortic wall tissue samples were collected from atherosclerotic patients. Biochemical analysis was used for the detection of the serum levels of triglycerides (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), lipoprotein (a) [Lp (a)], apolipoprotein (Apo) AI and Apo-B. Coronary angiography and SYNTAX scoring were used to determine the extent and severity of the disease. Immunohistochemistry was employed for the detection of the VCAM-1 protein expression levels in the arterial tissues. Significant differences were observed in the blood lipid levels between atherosclerotic patients and control subjects. Immunohistochemistry indicated that the aortic VCAM-1 expression level in atherosclerotic patients was 0.23±0.06 optical density (OD) units, which was significantly higher than that in the control subjects (0.08±0.03 OD units). In the atherosclerotic patients, the aortic VCAM-1 expression was positively correlated with the serum levels of TG (r=0.347), TC (r=0.469), LDL-C (r=0.463), Lp (a) (r=0.507) and Apo-B (r=0.384), while VCAM-1 and HDL-C were negatively correlated (r=-0.319). Furthermore, a higher SYNTAX score was accompanied by a higher VCAM-1 expression level (r=0.532), and an elevated aortic VCAM-1 expression was associated with certain cardiovascular risk factors. In conclusion, aortic VCAM-1 expression is associated with the severity of atherosclerosis and cardiovascular risk factors, indicating that VCAM-1 plays a role in the pathogenesis of atherosclerosis.
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Affiliation(s)
- Wei Mu
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Ji'nan, Shandong 250014, P.R. China
| | - Mingyou Chen
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Ji'nan, Shandong 250014, P.R. China
| | - Zushun Gong
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Ji'nan, Shandong 250014, P.R. China
| | - Fei Zheng
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Ji'nan, Shandong 250014, P.R. China
| | - Qichong Xing
- Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Ji'nan, Shandong 250014, P.R. China
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