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Liu WL, Li CY, Cheng WC, Chang CY, Chen YH, Lu CY, Wang SC, Liu YR, Cheng MH, Chong IW, Liu PL. High Mobility Group Box 1 Promotes Lung Cancer Cell Migration and Motility via Regulation of Dynamin-Related Protein 1. Int J Mol Sci 2021; 22:ijms22073628. [PMID: 33807275 PMCID: PMC8036886 DOI: 10.3390/ijms22073628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 01/08/2023] Open
Abstract
High mobility group box 1 (HMGB1) has been demonstrated to promote the migration and invasion of non-small cell lung cancer (NSCLC). However, the mechanism of action of HMGB1 in regulating tumor mobility remains unclear. Therefore, we aimed to investigate whether HMGB1 affects mitochondria distribution and regulates dynamin-related protein 1 (DRP1)-mediated lamellipodia/filopodia formation to promote NSCLC migration. The regulation of mitochondrial membrane tension, dynamics, polarization, fission process, and cytoskeletal rearrangements in lung cancer cells by HMGB1 was analyzed using confocal microscopy. The HMGB1-mediated regulation of DRP1 phosphorylation and colocalization was determined using immunostaining and co-immunoprecipitation assays. The tumorigenic potential of HMGB1 was assessed in vivo and further confirmed using NSCLC patient samples. Our results showed that HMGB1 increased the polarity and mobility of cells (mainly by regulating the cytoskeletal system actin and microtubule dynamics and distribution), promoted the formation of lamellipodia/filopodia, and enhanced the expression and phosphorylation of DRP1 in both the nucleus and cytoplasm. In addition, HMGB1 and DRP1 expressions were positively correlated and exhibited poor prognosis and survival in patients with lung cancer. Collectively, HMGB1 plays a key role in the formation of lamellipodia and filopodia by regulating cytoskeleton dynamics and DRP1 expression to promote lung cancer migration.
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Affiliation(s)
- Wei-Lun Liu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan;
- Division of Critical Care Medicine, Department of Emergency and Critical Care Medicine, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City 243, Taiwan
| | - Chia-Yang Li
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
| | - Wei-Chung Cheng
- Graduate Institute of Biomedical Science, Research Center for Cancer Biology, China Medical University, Taichung 404, Taiwan;
| | - Chia-Yuan Chang
- Department of Mechanical Engineering, National Cheng Kung University, Tainan 701, Taiwan;
| | - Yung-Hsiang Chen
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan;
- Department of Psychology, College of Medical and Health Science, Asia University, Taichung 413, Taiwan
| | - Chi-Yu Lu
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
| | - Shu-Chi Wang
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center for Liquid Biopsy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Ru Liu
- Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
| | - Meng-Hsuan Cheng
- Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (M.-H.C.); (I.-W.C.); (P.-L.L.); Tel.: +886-7-312-1101 (ext. 5651) (M.-H.C. & I.-W.C.); +886-7-312-1101 (ext. 2801) (P.-L.L.)
| | - Inn-Wen Chong
- Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Correspondence: (M.-H.C.); (I.-W.C.); (P.-L.L.); Tel.: +886-7-312-1101 (ext. 5651) (M.-H.C. & I.-W.C.); +886-7-312-1101 (ext. 2801) (P.-L.L.)
| | - Po-Len Liu
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (M.-H.C.); (I.-W.C.); (P.-L.L.); Tel.: +886-7-312-1101 (ext. 5651) (M.-H.C. & I.-W.C.); +886-7-312-1101 (ext. 2801) (P.-L.L.)
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Liu N, Wu Y, Wen X, Li P, Lu F, Shang H. Chronic stress promotes acute myeloid leukemia progression through HMGB1/NLRP3/IL-1β signaling pathway. J Mol Med (Berl) 2021; 99:403-414. [PMID: 33409553 DOI: 10.1007/s00109-020-02011-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 11/08/2020] [Accepted: 11/18/2020] [Indexed: 12/18/2022]
Abstract
Acute myeloid leukemia (AML) is an aggressive hematologic malignancy with poor prognosis and overall survival. Clinical investigations show that chronic stress is commonly present in the course of AML and associated with adverse outcome. However, the underlying molecular mechanisms are elusive. In the present study, a chronic restraint stress mouse model was established to evaluate the effect of stress on AML. We found that mice under chronic stress exhibited significantly increased liver and spleen infiltration of leukemic cells and poorer overall survival. This was accompanied by elevated cellular NLR family pyrin domain containing 3 (NLRP3) and interleukin-1β (IL-1β) in the liver or bone marrow, and secreted IL-1β in the plasma, indicating the activation of inflammasomes under chronic restraint stress. High mobility group box 1 (HMGB1) expression was markedly increased in newly diagnosed AML patients, but reduced in complete remission AML patients. The expression level of HMGB1 was positively correlated with NLRP3 mRNA in AML patients. Knockdown of HMGB1 significantly decreased NLRP3 and IL-1β expression in AML cell lines, and secreted IL-1β in supernatant of AML cell culture, while HMGB1 stimulation caused contrary effects. These results implied that HMGB1 could be involved in the regulation of inflammasome activation in AML development. Mice model showed that chronic restraint stress-facilitated proliferation and infiltration of AML cells were largely abrogated by knocking down HMGB1. Knockdown of HMGB1 also ameliorated overall survival and remarkably neutralized NLRP3 and IL-1β expression under chronic restraint stress. These findings provide evidences that chronic stress promotes AML progression via HMGB1/NLRP3/IL-1β dependent mechanism, suggesting that HMGB1 is a potential therapeutic target for AML. KEY MESSAGES: • Chronic restraint stress promoted acute myeloid leukemia (AML) progression and mediated NLRP3 inflammasome activation in xenograft mice. • HMGB1 mediated NLRP3 inflammasome activation in AML cells. • Knockdown of HMGB1 inhibited AML progression under chronic stress in vivo.
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MESH Headings
- Animals
- Bone Marrow/metabolism
- Cell Line, Tumor
- Chronic Disease
- Disease Progression
- Female
- Gene Expression Regulation, Leukemic
- Gene Knockdown Techniques
- HMGB1 Protein/antagonists & inhibitors
- HMGB1 Protein/biosynthesis
- HMGB1 Protein/genetics
- HMGB1 Protein/physiology
- Heterografts
- Humans
- Inflammasomes/metabolism
- Inflammation
- Interleukin-1beta/biosynthesis
- Interleukin-1beta/genetics
- Interleukin-1beta/physiology
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/physiopathology
- Liver/metabolism
- Liver/pathology
- Mice, Inbred C57BL
- NLR Family, Pyrin Domain-Containing 3 Protein/biosynthesis
- NLR Family, Pyrin Domain-Containing 3 Protein/genetics
- NLR Family, Pyrin Domain-Containing 3 Protein/physiology
- Neoplasm Proteins/physiology
- RNA Interference
- Remission Induction
- Restraint, Physical
- Signal Transduction/physiology
- Spleen/metabolism
- Spleen/pathology
- Stress, Physiological
- Toll-Like Receptor 4/physiology
- Mice
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Affiliation(s)
- Na Liu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Yifan Wu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
- Xinhua Hospital Chongming Branch, Shanghai Jiaotong University School of Medicine, Shanghai, 202150, China
| | - Xin Wen
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Peng Li
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Fei Lu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Hong Shang
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, China.
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3
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Liu J, Wei E, Wei J, Zhou W, Webster KA, Zhang B, Li D, Zhang G, Wei Y, Long Y, Qi X, Zhang Q, Xu D. MiR-126-HMGB1-HIF-1 Axis Regulates Endothelial Cell Inflammation during Exposure to Hypoxia-Acidosis. Dis Markers 2021; 2021:4933194. [PMID: 34970357 PMCID: PMC8714334 DOI: 10.1155/2021/4933194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 11/20/2021] [Indexed: 02/05/2023]
Abstract
Crosstalk between molecular regulators miR-126, hypoxia-inducible factor 1-alpha (HIF-1-α), and high-mobility group box-1 (HMGB1) contributes to the regulation of inflammation and angiogenesis in multiple physiological and pathophysiological settings. Here, we present evidence of an overriding role for miR-126 in the regulation of HMGB1 and its downstream proinflammatory effectors in endothelial cells subjected to hypoxia with concurrent acidosis (H/A). Methods. Primary mouse endothelial cells (PMEC) were exposed to hypoxia or H/A to simulate short or chronic low-flow ischemia, respectively. RT-qPCR quantified mRNA transcripts, and proteins were measured by western blot. ROS were quantified by fluorogenic ELISA and luciferase reporter assays employed to confirm an active miR-126 target in the HMGB1 3'UTR. Results. Enhanced expression of miR-126 in PMECs cultured under neutral hypoxia was suppressed under H/A, whereas the HMGB1 expression increased sequentially under both conditions. Enhanced expression of HMGB1 and downstream inflammation markers was blocked by the premiR-126 overexpression and optimized by antagomiR. Compared with neutral hypoxia, H/A suppressed the HIF-1α expression independently of miR-126. The results show that HMGB1 and downstream effectors are optimally induced by H/A relative to neutral hypoxia via crosstalk between hypoxia signaling, miR-126, and HIF-1α, whereas B-cell lymphoma 2(Bcl2), a HIF-1α, and miR-126 regulated gene expressed optimally under neutral hypoxia. Conclusion. Inflammatory responses of ECs to H/A are dynamically regulated by the combined actions of hypoxia, miR-126, and HIF-1α on the master regulator HMGB1. The findings may be relevant to vascular diseases including atherosclerotic occlusion and interiors of plaque where coexisting hypoxia and acidosis promote inflammation as a defining etiology.
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Affiliation(s)
- Jinxue Liu
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Eileen Wei
- Gulliver High School, Miami, FL 33156, USA
| | - Jianqin Wei
- Department of Medicine Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Wei Zhou
- Department of Ophthalmology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-Sen University, Jiangmen 529030, China
| | - Keith A. Webster
- Integene International, LLC, Miami, FL 33137, USA
- Cullen Eye Institute, Department of Ophthalmology, Baylor College of Medicine, Houston, TX 77030, USA
- Everglades Biopharma, LLC, Houston, TX 77030, USA
| | - Bin Zhang
- Department of Cardiology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-Sen University, Jiangmen 529030, China
| | - Dong Li
- Department of Intensive Care Unit and Clinical Experimental Center, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-Sen University, Jiangmen 529030, China
| | - Gaoxing Zhang
- Department of Cardiology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-Sen University, Jiangmen 529030, China
| | - Yidong Wei
- Department of Surgery, Youjiang Medical University for Nationalities, Chengxiang Rd, Baise, Guangxi 533000, China
| | - Yusheng Long
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China
- Department of Cardiology, Guangdong Cardiovascular Institute and Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Xiuyu Qi
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China
- Department of Cardiology, Guangdong Cardiovascular Institute and Shantou University Medical College, Shantou 515041, China
| | - Qianhuan Zhang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China
| | - Dingli Xu
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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4
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Li R, Zhang J, Pan S, Yuan Y, Qi H, Shu H, Hu Y, Ren L, Jiang Y, Yuan S. HMGB1 aggravates lipopolysaccharide-induced acute lung injury through suppressing the activity and function of Tregs. Cell Immunol 2020; 356:104192. [PMID: 32853967 DOI: 10.1016/j.cellimm.2020.104192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/31/2020] [Accepted: 08/02/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND CD4+CD25+FoxP3+ T helper cells (Tregs), a subgroup of CD4+ T helper cells, are critical effectors that protect against acute lung injury (ALI) by contact-dependent suppression or releasing anti-inflammatory cytokines including interleukin-10 (IL-10), and transforming growth factor (TGF-β). HMGB1 (High mobility group box 1 protein) was identified as a nuclear non-histone DNA-binding chromosomal protein, which participates in the regulation of lung inflammatory response and pathological processes in ALI. Previous studies have suggested that Tregs overexpresses the HMGB1-recognizing receptor. However, the interaction of HMGB1 with Tregs in ALI is still unclear. OBJECTIVE To investigate whether HMGB1 aggravates ALI by suppressing immunosuppressive function of Tregs. METHODS Anti-HMGB1 antibody and recombinant mouse HMGB1 (rHMGB1) were administered in lipopolysaccharide (LPS)-induced ALI mice and polarized LPS-primed Tregs in vitro. The Tregs pre-stimulated with or without rHMGB1 were adoptively transferred to ALI mice and depleted by Diphtheria toxin (DT). For coculture experiment, isolated Tregs were first pre-stimulated with or without rHMGB1 or anti-HMGB1 antibody, then they were cocultured with bone marrow-derived macrophages (BMMs) under LPS stimulation. RESULTS Tregs protected against acute lung pathological injury. HMGB1 modulated the suppressive function of Tregs as follows: reduction in the number of the cells and the activity of Tregs, the secretion of anti-inflammatory cytokines (IL-10, TGF-β) from Tregs, the production of IL-2 from CD4+ T cells and CD11c+ DCs, and the M2 polarization of macrophages, as well as inducing proinflammatory response of macrophages. CONCLUSIONS HMGB1 could aggravate LPS induced-ALI through suppressing the activity and function of Tregs.
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Affiliation(s)
- Ruiting Li
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Jiancheng Zhang
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Shangwen Pan
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Yin Yuan
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Hong Qi
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Huaqing Shu
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Yingying Hu
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Lehao Ren
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Yongxiang Jiang
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Shiying Yuan
- Department of Critical Care Medicine, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China.
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5
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Wang Y, Zhang H, Chen Q, Jiao F, Shi C, Pei M, Lv J, Zhang H, Wang L, Gong Z. TNF-α/HMGB1 inflammation signalling pathway regulates pyroptosis during liver failure and acute kidney injury. Cell Prolif 2020; 53:e12829. [PMID: 32419317 PMCID: PMC7309595 DOI: 10.1111/cpr.12829] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/21/2020] [Accepted: 04/24/2020] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE Acute kidney injury (AKI) is a common complication of acute liver failure (ALF). Pyroptosis is a necrosis type related to inflammation. This study aimed to investigate the role of TNF-α/HMGB1 pathway in pyroptosis during ALF and AKI. METHODS An ALF and AKI mouse model was generated using LPS/D-Gal, and a TNF-α inhibitor, CC-5013, was used to treat the mice. THP-1 cells were induced to differentiate into M1 macrophages, then challenged with either CC-5013 or an HMGB1 inhibitor, glycyrrhizin. pLVX-mCMVZsGreen-PGK-Puros plasmids containing TNF-α wild-type (WT), mutation A94T of TNF-α and mutation P84L of TNF-α were transfected into M1 macrophages. RESULTS Treatment with CC-5013 decreased the activation of TNF-α/HMGB1 pathway and pyroptosis in the treated mice and cells compared with the control mice and cells. CC-5013 also ameliorated liver and kidney pathological changes and improved liver and renal functions in treated mice, and the number of M1 macrophages in the liver and kidney tissues also decreased. The activation of TNF-α/HMGB1 pathway and pyroptosis increased in the M1 macrophage group compared with the normal group. Similarly, the activation of TNF-α/HMGB1 pathway and pyroptosis in the LPS + WT group also increased. By contrast, the activation of the TNF-α/HMGB1 pathway and pyroptosis decreased in the LPS + A94T and LPS + P84L groups. Moreover, glycyrrhizin inhibited pyroptosis. CONCLUSION The TNF-α/HMGB1 inflammation signalling pathway plays an important role in pyroptosis during ALF and AKI.
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Affiliation(s)
- Yao Wang
- Department of Infectious DiseasesRenmin Hospital of Wuhan UniversityWuhanChina
| | - Haiyue Zhang
- Department of Infectious DiseasesRenmin Hospital of Wuhan UniversityWuhanChina
| | - Qian Chen
- Department of Infectious DiseasesRenmin Hospital of Wuhan UniversityWuhanChina
| | - Fangzhou Jiao
- Department of Infectious DiseasesRenmin Hospital of Wuhan UniversityWuhanChina
| | - Chunxia Shi
- Department of Infectious DiseasesRenmin Hospital of Wuhan UniversityWuhanChina
| | - Maohua Pei
- Department of Infectious DiseasesRenmin Hospital of Wuhan UniversityWuhanChina
| | - Jian Lv
- Department of PharmacyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Hong Zhang
- Department of PharmacyRenmin Hospital of Wuhan UniversityWuhanChina
| | - Luwen Wang
- Department of Infectious DiseasesRenmin Hospital of Wuhan UniversityWuhanChina
| | - Zuojiong Gong
- Department of Infectious DiseasesRenmin Hospital of Wuhan UniversityWuhanChina
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Hisaoka-Nakashima K, Azuma H, Ishikawa F, Nakamura Y, Wang D, Liu K, Wake H, Nishibori M, Nakata Y, Morioka N. Corticosterone Induces HMGB1 Release in Primary Cultured Rat Cortical Astrocytes: Involvement of Pannexin-1 and P2X7 Receptor-Dependent Mechanisms. Cells 2020; 9:cells9051068. [PMID: 32344830 PMCID: PMC7290518 DOI: 10.3390/cells9051068] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/17/2020] [Accepted: 04/22/2020] [Indexed: 02/06/2023] Open
Abstract
A major risk factor for major depressive disorder (MDD) is stress. Stress leads to the release of high-mobility group box-1 (HMGB1), which in turn leads to neuroinflammation, a potential pathophysiological basis of MDD. The mechanism underlying stress-induced HMGB1 release is not known, but stress-associated glucocorticoids could be involved. To test this, rat primary cultured cortical astrocytes, the most abundant cell type in the central nervous system (CNS), were treated with corticosterone and HMGB1 release was assessed by Western blotting and ELISA. Significant HMGB1 was released with treatment with either corticosterone or dexamethasone, a synthetic glucocorticoid. HMGB1 translocated from the nucleus to the cytoplasm following corticosterone treatment. HMGB1 release was significantly attenuated with glucocorticoid receptor blocking. In addition, inhibition of pannexin-1, and P2X7 receptors led to a significant decrease in corticosterone-induced HMGB1 release. Taken together, corticosterone stimulates astrocytic glucocorticoid receptors and triggers cytoplasmic translocation and extracellular release of nuclear HMGB1 through a mechanism involving pannexin-1 and P2X7 receptors. Thus, under conditions of stress, glucocorticoids induce astrocytic HMGB1 release, leading to a neuroinflammatory state that could mediate neurological disorders such as MDD.
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Affiliation(s)
- Kazue Hisaoka-Nakashima
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; (K.H.-N.); (H.A.); (F.I.); (Y.N.); (Y.N.)
| | - Honami Azuma
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; (K.H.-N.); (H.A.); (F.I.); (Y.N.); (Y.N.)
| | - Fumina Ishikawa
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; (K.H.-N.); (H.A.); (F.I.); (Y.N.); (Y.N.)
| | - Yoki Nakamura
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; (K.H.-N.); (H.A.); (F.I.); (Y.N.); (Y.N.)
| | - Dengli Wang
- Department of Pharmacology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Shikata, Okayama 700-8558, Japan; (D.W.); (K.L.); (H.W.); (M.N.)
| | - Keyue Liu
- Department of Pharmacology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Shikata, Okayama 700-8558, Japan; (D.W.); (K.L.); (H.W.); (M.N.)
| | - Hidenori Wake
- Department of Pharmacology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Shikata, Okayama 700-8558, Japan; (D.W.); (K.L.); (H.W.); (M.N.)
| | - Masahiro Nishibori
- Department of Pharmacology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Shikata, Okayama 700-8558, Japan; (D.W.); (K.L.); (H.W.); (M.N.)
| | - Yoshihiro Nakata
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; (K.H.-N.); (H.A.); (F.I.); (Y.N.); (Y.N.)
| | - Norimitsu Morioka
- Department of Pharmacology, Graduate School of Biomedical & Health Sciences, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima 734-8553, Japan; (K.H.-N.); (H.A.); (F.I.); (Y.N.); (Y.N.)
- Correspondence: ; Tel.: +81-082-257-5310
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7
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Wan J, Huang L, Ji X, Yao S, Hamed Abdelaziz M, Cai W, Wang H, Cheng J, Dineshkumar K, Aparna V, Su Z, Wang S, Xu H. HMGB1-induced ILC2s activate dendritic cells by producing IL-9 in asthmatic mouse model. Cell Immunol 2020; 352:104085. [PMID: 32201004 DOI: 10.1016/j.cellimm.2020.104085] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 03/03/2020] [Accepted: 03/04/2020] [Indexed: 01/20/2023]
Abstract
Asthma is a disease of the respiratory system that is commonly considered a T-helper 2 (Th2) cell-associated inflammatory disease. Group 2 innate lymphoid cells (ILC2s) promote the inflammatory responses in asthma by secreting type 2 cytokines. Interleukin (IL)-9 also serves as a promoting factor in asthma and it is well known that ILC2s have an autocrine effect of IL-9 to sustain their survival and proliferation. However, the specific role of ILC2-derived IL-9 in asthma remains unclear. HMGB1 (High-Mobility Group Box-1) is a nuclear protein, and Previous studies have shown that HMGB1 can regulate the differentiation of T-helper cells and participate in the development of asthma. But whether HMGB1 can regulate the innate lymphocytes in the pathological process of asthma is unknown. In this study we have shown increased presence of HMGB1 protein in the lung of mice with asthma, which was associated with increased secretion of IL-9 by ILC2s. This led to the activation of dendritic cells (DCs) that can accelerate the differentiation of Th2 cells and worsen the severity of asthma. Taken together, our study provides a complementary understanding of the asthma development and highlights a novel inflammatory pathway in the pathogenesis of asthma.
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Affiliation(s)
- Jie Wan
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Lan Huang
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Xiaoyun Ji
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Shun Yao
- Center for Pituitary Tumor Surgery, Department of Neurosurgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | | | - Wei Cai
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Huixuan Wang
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Jianjun Cheng
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China
| | | | - Vasudevan Aparna
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China
| | - Zhaoliang Su
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China; The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - Shengjun Wang
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China; Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang 212001, China
| | - Huaxi Xu
- Department of Immunology, Jiangsu University, Zhenjiang 212013, China.
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8
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Li R, Shang Y, Yu Y, Zhou T, Xiong W, Zou X. High-mobility group box 1 protein participates in acute lung injury by activating protein kinase R and inducing M1 polarization. Life Sci 2020; 246:117415. [PMID: 32035932 DOI: 10.1016/j.lfs.2020.117415] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/28/2020] [Accepted: 02/05/2020] [Indexed: 11/19/2022]
Abstract
High-mobility group box 1 protein (HMGB1) is a crucial proinflammatory cytokine that contributes to acute lung injury (ALI). Macrophages are known to express the primary receptors (Toll-like receptor [TLR] 2, and TLR4) of HMGB1 for transmitting intracellular signals. Studies have revealed that double-stranded RNA activated protein kinase R (PKR), which is expressed in macrophages, participates in ALI by regulating macrophage polarization and proinflammatory cytokine release, and that PKR is normally activated by a subset of TLRs. The present study investigated whether HMGB1 engages in ALI by activating PKR in macrophages and inducing classically activated macrophage (M1) polarization via TLR2- and TLR4-mediated nuclear factor (NF)-κB signaling pathways. In an vivo mouse model of lipopolysaccharide (LPS)-induced ALI, anti-HMGB1, rHMGB1, LPS-RS (TLR2 and TLR4 antagonist), or C16 (PKR inhibitor) was administered to mice 2 h after LPS challenge or 1 h before LPS challenge. In vitro, bone marrow-derived macrophages from mice primed with LPS were stimulated with or without anti-HMGB1, rHMGB1, LPS-RS, or C16. Our studies revealed that rHMGB1 stimulation induced M1 polarization in ALI, and that anti-HMGB1 and C16 treatments had the opposite effect. Anti-HMGB1 and LPS-RS significantly inhibited LPS-induced PKR expression in macrophages; however, rHMGB1 administration increased PKR expression. These results indicate that HMGB1 participates in the pathogenesis of ALI by activating PKR in macrophages and inducing M1 polarization through TLR2- and TLR4-mediated NF-κB signaling pathways.
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Affiliation(s)
- Ruiting Li
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - You Shang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Yuan Yu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Ting Zhou
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Wei Xiong
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China
| | - Xiaojing Zou
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, PR China.
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9
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Ostrand-Rosenberg S, Beury DW, Parker KH, Horn LA. Survival of the fittest: how myeloid-derived suppressor cells survive in the inhospitable tumor microenvironment. Cancer Immunol Immunother 2020; 69:215-221. [PMID: 31501954 PMCID: PMC7004852 DOI: 10.1007/s00262-019-02388-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 08/29/2019] [Indexed: 12/25/2022]
Abstract
Myeloid-derived suppressor cells (MDSC) are present in most cancer patients where they are significant contributors to the immune suppressive tumor microenvironment (TME). The TME is a hostile locale due to deficiencies in oxygen (hypoxia) and nutrients, and the presence of reactive oxygen species (ROS). The survival of tumor cells within the TME is partially governed by two mechanisms: (1) Activation of the transcription factor Nuclear Factor Erythroid-derived 2-like 2 (Nrf2) which turns on genes that attenuate oxidative stress; and (2) The presence of High Mobility Group Box Protein-1 (HMGB1), a damage-associated molecular pattern molecule (DAMP) that induces autophagy and protects against apoptosis. Because Nrf2 and HMGB1 promote tumor cell survival, we speculated that Nrf2 and HMGB1 may facilitate MDSC survival. We tested this hypothesis using Nrf2+/+ and Nrf2-/- BALB/c and C57BL/6 mice and pharmacological inhibitors of HMGB1. In vitro and in vivo studies demonstrated that Nrf2 increased the suppressive potency and quantity of tumor-infiltrating MDSC by up-regulating MDSC production of H2O2 and decreasing MDSC apoptosis. Decreased apoptosis was accompanied by a decrease in the production of MDSC, demonstrating that MDSC levels are homeostatically regulated. Pharmacological inhibition of autophagy increased MDSC apoptosis, indicating that autophagy increases MDSC half-life. Inhibition of HMGB1 also increased MDSC apoptosis and reduced MDSC autophagy. These results combined with our previous findings that HMGB1 drives the accumulation of MDSC demonstrate that HMGB1 maintains MDSC viability by inducing autophagy. Collectively, these findings identify Nrf2 and HMGB1 as important factors that enable MDSC to survive in the TME.
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Affiliation(s)
- Suzanne Ostrand-Rosenberg
- Department of Biological Sciences, University of Maryland Baltimore County (UMBC), Baltimore, MD, USA.
- Department of Pathology, University of Utah, Salt Lake City, UT, USA.
- Huntsman Cancer Institute, University of Utah, 15 North Medical Drive East, Ste. #1100, Salt Lake City, UT, 84112, USA.
| | - Daniel W Beury
- Department of Biological Sciences, University of Maryland Baltimore County (UMBC), Baltimore, MD, USA
| | - Katherine H Parker
- Department of Biological Sciences, University of Maryland Baltimore County (UMBC), Baltimore, MD, USA
| | - Lucas A Horn
- Department of Biological Sciences, University of Maryland Baltimore County (UMBC), Baltimore, MD, USA
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10
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Chung H, Hong SJ, Choi SW, Park CG. The effect of preexisting HMGB1 within fetal bovine serum on murine pancreatic beta cell biology. Islets 2020; 12:1-8. [PMID: 31935155 PMCID: PMC7064295 DOI: 10.1080/19382014.2019.1696128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
High-mobility group box 1 (HMGB1) can act as a structural protein of the chromatin and at the same time as a mediator of the immune system. Its high correlation with the graft acceptance in pancreatic islet recipients makes it a biomarker in islet transplantation. With the suspicion that preexisting HMGB1 in the fetal bovine serum (FBS) would be detrimental to the viability and function of murine beta cells, HMGB1 was removed from FBS and its impact was investigated. Interestingly, the elimination of HMGB1 from FBS seemed unfavorable to the viability and function of cultured murine beta cells, suggesting that the preexisting HMGB1 in the FBS may be an indispensable component of islet cell culture.
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Affiliation(s)
- Hyunwoo Chung
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Ji Hong
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - So Won Choi
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Chung-Gyu Park
- Xenotransplantation Research Center, Seoul National University College of Medicine, Seoul, Korea
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, Korea
- Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Korea
- CONTACT Chung-Gyu Park Department of Microbiology and Immunology, Department of Biomedical Sciences, Xenotransplantation Research Center, Seoul National University College of Medicine, 103 Daehak-ro Jongno-gu, Seoul 110-799, Korea
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11
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Yu M, Huang H, Dong S, Sha H, Wei W, Liu C. High mobility group box-1 mediates hippocampal inflammation and contributes to cognitive deficits in high-fat high-fructose diet-induced obese rats. Brain Behav Immun 2019; 82:167-177. [PMID: 31430517 DOI: 10.1016/j.bbi.2019.08.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 08/06/2019] [Accepted: 08/14/2019] [Indexed: 01/31/2023] Open
Abstract
High-fat high-sugar diet-induced obesity can lead to hippocampal inflammation and cognitive deficits, but the detailed underlying mechanism is still not clear. We aim to investigate the role of HMGB1 in hippocampal inflammatory responses and cognitive impairment in high-fat high-fructose diet (HFHFD)-induced obesity. Rats were fed with a normal control diet or an HFHFD diet for 14 weeks. In the last 6 weeks on the diets, the rats were treated with control, or an HMGB1 inhibitor glycyrrhizin, or an anti-HMGB1 neutralizing monoclonal antibody (mAb). Obesity was induced in the HFHFD-fed rats, which had higher body weight, epididymal white adipose tissue (EWAT) weight and caloric efficiency, and lower brain/body weight ratio, glucose tolerance and insulin sensitivity than the ones on normal diets. In the HFHFD-induced obese rats, the HMGB1 levels in plasma and hippocampus were increased, and the nucleus-to-cytoplasm translocation of HMGB1 was promoted. The hippocampal inflammatory responses were enhanced in the HFHFD-induced obesity, including the activation of TLR4 and NF-κB, the production of IL-1β, TNF-α and IL-6, as well as the activation of microglia and astrocytes. In addition, the hippocampal cell apoptosis and cognitive impairment were observed in the HFHFD-fed rats. The treatment with glycyrrhizin or HMGB1 mAb successfully decreased the HMGB1 levels in plasma and hippocampus, and prevented the HMGB1 translocation from the nucleus to cytoplasm. Inhibiting HMGB1 by glycyrrhizin or HMGB1 mAb suppressed the hippocampal inflammatory, alleviated the apoptosis and ameliorated the cognitive impairment in HFHFD-fed rats. These findings indicate that HMGB1 mediates the hippocampal inflammation and contributes to the cognitive deficits in HFHFD-induced obesity. Therefore, inhibition of HMGB1 may have beneficial effect in protecting against hippocampal inflammation and cognitive deficits in dietary obesity.
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Affiliation(s)
- Min Yu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - He Huang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Shiyang Dong
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Huanhuan Sha
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Wei Wei
- Department of General Surgery, The Second Affiliated Hospital, Nanjing Medical University, Nanjing 210011, China.
| | - Cunming Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China.
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12
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Zhao G, Zhang J, Nie D, Zhou Y, Li F, Onishi K, Billiar T, Wang JHC. HMGB1 mediates the development of tendinopathy due to mechanical overloading. PLoS One 2019; 14:e0222369. [PMID: 31560698 PMCID: PMC6764662 DOI: 10.1371/journal.pone.0222369] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 09/16/2019] [Indexed: 11/30/2022] Open
Abstract
Mechanical overloading is a major cause of tendinopathy, but the underlying pathogenesis of tendinopathy is unclear. Here we report that high mobility group box1 (HMGB1) is released to the tendon extracellular matrix and initiates an inflammatory cascade in response to mechanical overloading in a mouse model. Moreover, administration of glycyrrhizin (GL), a naturally occurring triterpene and a specific inhibitor of HMGB1, inhibits the tendon’s inflammatory reactions. Also, while prolonged mechanical overloading in the form of long-term intensive treadmill running induces Achilles tendinopathy in mice, administration of GL completely blocks the tendinopathy development. Additionally, mechanical overloading of tendon cells in vitro induces HMGB1 release to the extracellular milieu, thereby eliciting inflammatory and catabolic responses as marked by increased production of prostaglandin E2 (PGE2) and matrix metalloproteinase-3 (MMP-3) in tendon cells. Application of GL abolishes the cellular inflammatory/catabolic responses. Collectively, these findings point to HMGB1 as a key molecule that is responsible for the induction of tendinopathy due to mechanical overloading placed on the tendon.
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Affiliation(s)
- Guangyi Zhao
- MechanoBiology Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Jianying Zhang
- MechanoBiology Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Daibang Nie
- MechanoBiology Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Yiqin Zhou
- MechanoBiology Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Joint Surgery and Sports Medicine Department, Shanghai Changzheng Hospital, Second Military Medical University, Huangpu, Shanghai, China
| | - Feng Li
- MechanoBiology Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Kentaro Onishi
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Timothy Billiar
- Department of Surgery, University of Pittsburgh, Pennsylvania, United States of America
| | - James H-C. Wang
- MechanoBiology Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail:
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13
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Araya P, Romero J, Delgado-López F, Gonzalez I, Añazco C, Perez R, Rojas A. HMGB1 decreases CCR-2 expression and migration of M2 macrophages under hypoxia. Inflamm Res 2019; 68:639-642. [PMID: 31115587 DOI: 10.1007/s00011-019-01249-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 05/14/2019] [Accepted: 05/16/2019] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The hypoxic milieu at tumor microenvironment is able to drive the behavior of infiltrating tumor cells. Considering that hypoxia-mediated HMGB1 release is known to promote tumor growth, as well to enhance the pro-tumoral profile of M2 macrophages by a RAGE-dependent mechanism, it is tempting to evaluate the potential contribution of HMGB1 under hypoxia to restrain M2 macrophages mobility. METHODS CCR-2 expression was evaluated in M2 polarized macrophages by western blotting and immunocytochemistry. The secreted levels of CCL-2 and the migration capability were evaluated using an ELISA and a chemotaxis assay, respectively. RESULTS HMGB1, under hypoxic conditions, markedly reduce both the production of CCL-2 and the expression of its receptor CCR-2; and reduced the migration capacity of M2 macrophages. CONCLUSIONS These results provided new insights into the mechanisms that regulate M2 macrophages mobility at the tumor microenvironment.
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Affiliation(s)
- Paulina Araya
- Biomedical Research Laboratories, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Jacqueline Romero
- Biomedical Research Laboratories, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Fernando Delgado-López
- Biomedical Research Laboratories, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Ileana Gonzalez
- Biomedical Research Laboratories, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Carolina Añazco
- Biomedical Research Laboratories, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Ramón Perez
- Biomedical Research Laboratories, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Armando Rojas
- Biomedical Research Laboratories, Medicine Faculty, Catholic University of Maule, Talca, Chile.
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14
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Li M, Li Y, Sun L, Song JL, Lv C. [High mobility group box 1 promotes apoptosis of astrocytes after oxygen glucose deprivation/reoxygenation by regulating the expression of Bcl-2 and Bax]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:785-791. [PMID: 30337736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate the effect of high mobility group protein box 1 (HMGB1) on apoptosis of astrocytes after oxygen glucose deprivation/reoxygenation (OGD/R), and to investigate the possible mechanism by evaluating the expression of apoptosis related protein Bcl-2 and Bax. METHODS The cerebral cortex astrocytes of neonatal rats were divided into normal group, model group, interference group and control group. Lentivirus vector of rat HMGB1 short hairpin RNA (shRNA) was used to suppress the HMGB1 protein expression in the astrocytes. Then the detection was made after astrocytes were deprived of oxygen and glucose 6 h, reoxygenation for 24 h. The effect of RNA interference was evaluated by Western blotting. The cell survival rate was measured by MTT assay. The apoptosis of astrocytes was determined by TUNEL assay. The expressions of Bcl-2 and Bax were detected by Western blotting. RESULTS Compared with the normal group, the protein expression of HMGB1 was significantly increased in model group after OGD/R (P<0.001), the astrocytes survival rate was decreased (P<0.001), the number of apoptotic cells labeled with TUNEL was increased (P<0.001), and the ratio of Bcl-2/Bax was decreased (P<0.001). Compared with the model group, RNA interference effectively inhibited the expression of HMGB1 in interference group (P<0.001), the astrocytes survival rate was increased (P<0.001), the number of apoptotic cells labeled with TUNEL was reduced (P<0.01), and the ratio of Bcl-2/Bax was increased (P<0.001). CONCLUSION The apoptosis of astrocytes can be induced by HMGB1 after OGD/R, and the mechanism may be related to regulating the expression of apoptosis related proteins Bcl-2 and Bax.
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Affiliation(s)
- M Li
- Department of Neurology, The Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- Basic Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - L Sun
- Department of Orthopedics, Shanxi Academy of Medical Sciences Shanxi Dayi Hospital, Taiyuan 030032, China
| | - J L Song
- Department of Orthopedics, Shanxi Academy of Medical Sciences Shanxi Dayi Hospital, Taiyuan 030032, China
| | - C Lv
- Department of Orthopedics, Shanxi Academy of Medical Sciences Shanxi Dayi Hospital, Taiyuan 030032, China
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15
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Shi Y, Guo X, Zhang J, Zhou H, Sun B, Feng J. DNA binding protein HMGB1 secreted by activated microglia promotes the apoptosis of hippocampal neurons in diabetes complicated with OSA. Brain Behav Immun 2018; 73:482-492. [PMID: 29920330 DOI: 10.1016/j.bbi.2018.06.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 11/16/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) complicated with obstructive sleep apnea (OSA) may cause neuronal apoptosis and cognitive deficits, but the underlying mechanisms remain unclear. We aimed to determine the relationship between the activation of microglia and the apoptosis of hippocampal neurons, specifically in terms of high mobility group box-1 (HMGB1), after high glucose (HG) and intermittent hypoxia (IH) exposure. Diabetic KK-Ay mice and non-diabetic C57BL/6J mice (C57 mice) underwent IH or normoxia (control) exposure for 4 weeks. Cognitive function, microglial activation and hippocampal neuronal apoptosis were assessed after IH or normoxia exposure. Compared with C57 control mice, KK-Ay control mice exhibited increased cognitive dysfunction, microglial activation and hippocampal neuronal apoptosis. There were no differences between untreated KK-Ay control mice and C57 mice that had been exposed to IH. The abovementioned responses were aggravated in IH-exposed KK-Ay mice compared with control KK-Ay mice. In vitro, a cellular co-culture experiment showed that HG combined with IH could activate BV2 microglia, leading to the release of neuroinflammatory factors (ROS, TNF-α, IL-1β) and mediating the apoptosis of HT22 cells via the PI3K/Akt/GSK-3β signaling pathway. Meanwhile, HMGB1 was actively secreted into the extracellular environment from activated BV2 microglia. As a proinflammatory factor, it was able to sustain microglial activation by directly acting on those cells. The activation promoted positive feedback and aggravated neuronal damage further. In a cellular monoculture or co-culture system, HMGB1 siRNA was able to alleviate the activation of BV2 cells and the apoptosis of HT22 cells induced by HG combined with IH. Our object is to show that inhibition of HMGB1 may break the vicious cycle to prevent or treat neuroinflammation and hippocampal neuronal apoptosis caused by T2DM complicated with OSA.
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Affiliation(s)
- Yu Shi
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin Medical University, 300052 Tianjin, China
| | - Xiangyu Guo
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin Medical University, 300052 Tianjin, China
| | - Jie Zhang
- The Second Hospital of Tianjin Medical University, 300211 Tianjin, China
| | - Hanchi Zhou
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Metabolic Diseases Hospital & Institute of Endocrinology, Department of Physiology, Tianjin Medical University, 300070 Tianjin, China
| | - Bei Sun
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Metabolic Diseases Hospital & Institute of Endocrinology, Department of Physiology, Tianjin Medical University, 300070 Tianjin, China.
| | - Jing Feng
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin Medical University, 300052 Tianjin, China.
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16
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Liu Y, Du M, Song Y, Liu H, Xiang S. NAC1/HMGB1 Signaling Pathway Is Associated with Epithelial-mesenchymal Transition, Invasion, and Metastasis of Lung Cancer Cell Line. Ann Clin Lab Sci 2018; 48:559-564. [PMID: 30373858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE This study aims to investigate the role of NAC1/HMGB1 signaling pathway in the epithelial-mesenchymal transition (EMT), invasion, and metastasis of lung cancer cell line. METHODS Human lung cancer cell line A549 was used in this study. They were randomly divided into normal control group, sh-NAC1 empty vector group (sh-NAC1 NC), expression empty vector group (NAC1 NC), NAC1-shRNA and NAC1 over-expression group (NAC1). NAC1 and HMGB1 expression levels were detected by qRT-PCR method. Cell proliferation was detected by CCK8 kit. Cell cycles were detected by flow cytometry method. Cell invasion was detected by Transwell method. The expression levels of E-cadherin, N-cadherin, NAC1, and HMGB1 were detected by qRT-PCR and Western blotting methods. RESULTS Compared with the control group, the expression level of NAC1 and cell proliferation in NAC1-shRNA group decreased, cells in G1 phase increased and cells in S phase decreased. In NAC1-shRNA group, E-cadherin expression levels increased and the expression levels of N-cadherin, HMGB1 and Vimentin decreased. In NAC1 group, the expression level of NAC1 and cell proliferation increased, cells in S phase increased and cells in G1 phase decreased, E-cadherin expression levels decreased and the expression levels of N-cadherin, HMGB1 and Vimentin increased. All these differences are statistically significant. CONCLUSIONS The expression of NAC1 and HMGB1 in lung cancer cells may affect the occurrence of EMT, the NAC1/ HMGB1 signaling pathway is associated with the EMT, invasion, and metastasis of lung cancer cells.
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Affiliation(s)
- Yi Liu
- Department of Cardiothoracic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ming Du
- Department of Cardiothoracic Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yi Song
- Chongqing Three Gorges Central Hospital, Chongqing, China
| | - Hongxiang Liu
- Cardiothoracic Surgery, Southwest Hospital of the Third Military Medical University, Chongqing, China
| | - Shu Xiang
- Chongqing Three Gorges Central Hospital, Chongqing, China
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17
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Zhang Y, Liu Z, Hao X, Li A, Zhang J, Carey CD, Falo LD, You Z. Tumor-derived high-mobility group box 1 and thymic stromal lymphopoietin are involved in modulating dendritic cells to activate T regulatory cells in a mouse model. Cancer Immunol Immunother 2018; 67:353-366. [PMID: 29116372 PMCID: PMC11028122 DOI: 10.1007/s00262-017-2087-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 10/27/2017] [Indexed: 12/14/2022]
Abstract
High-mobility group box 1 (HMGB1) is involved in the tumor-associated activation of regulatory T cells (Treg), but the mechanisms remain unknown. In a mouse tumor model, silencing HMGB1 in tumor cells or inhibiting tumor-derived HMGB1 not only dampened the capacity of tumor cells to produce thymic stromal lymphopoietin (TSLP), but also aborted the tumor-associated modulation of Treg-activating DC. Tumor-derived HMGB1 triggered the production of TSLP by tumor cells. Importantly, both tumor-derived HMGB1 and TSLP were necessary for modulating DC to activate Treg in a TSLP receptor (TSLPR)-dependent manner. In the therapeutic model, intratumorally inhibiting tumor-derived HMGB1 (causing downstream loss of TSLP production) attenuated Treg activation, unleashed tumor-specific CD8 T cell responses, and elicited CD8α+/CD103+DC- and T cell-dependent antitumor activity. These results suggest a new pathway for the activation of Treg involving in tumor-derived HMGB1 and TSLP, and have important implications for incorporating HMGB1 inhibitors into cancer immunotherapy.
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Affiliation(s)
- Yi Zhang
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
- The 3rd Affiliated Hospital of Jianghan University, Wuhan, China
| | - Zuqiang Liu
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA
| | - Xingxing Hao
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Ang Li
- Cleveland Clinic, Cole Eye Institute, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Jiying Zhang
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Cara D Carey
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Louis D Falo
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA
| | - Zhaoyang You
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, 15213, USA.
- W1154 Thomas E. Starzl Biomedical Science Tower, 200 Lothrop Street, Pittsburgh, PA, 15213, USA.
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18
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Abstract
OBJECTIVE To determine mechanisms for the role of high mobility group box-1 (HMGB1) to platinum based chemo-sensitivity in cervical cancer.
Methods: Using Western blot, we examined the effect of cisplatin on expressions of LC3, Beclin1 and P62 in cervical cancer. After treated with autophagy inhibitor and/or cisplatin in HeLa and CaSki cells, cell counting kit-8 (CCK-8) assay was used to evaluate the chemo-sensitivity. The expression of LC3, Beclin1 and P62 were detected by Western blot. We established HeLa-shHMGB1, CaSki-shHMGB1 and HeLa-CTR, CaSki-CTR stable cell lines. CCK-8 assay was used to determine the chemosensitivity in these cell lines. Using Western blot, we examined the correlation among the expressions of HMGB1, LC3, Beclin1, and P62.
Results: With the increase of cisplatin, the expression of LC3 and Beclin1 was increased, while the expression of P62 was decreased in HeLa and CaSki cell lines. Combination of cisplatin with autophagy inhibitor could increase the cellular sensitivity to cisplatin (P<0.05). The expression of HMGB1 was related to chemo-sensitivity and autophagy related protein in cervical cancer cells. HMGB1 was positively correlated with LC3 and Beclin1 while negatively correlated with P62 (P<0.05).
Conclusion: HMGB1 might play an important role in chemo-sensitivity via regulating autophagic activity. The combination of cisplatin with autophagy inhibitor might become a possible strategy for cervical cancer. HMGB1 might serve as a potential biomarker for predicting chemo-therapeutic responses.
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Affiliation(s)
- Fang Zhu
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jiajie Wu
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha 410008, China
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19
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Abstract
The high-mobility group box (HMGB) family includes four members: HMGB1, 2, 3 and 4. HMGB proteins have two functions. In the nucleus, HMGB proteins bind to DNA in a DNA structure-dependent but nucleotide sequence-independent manner to function in chromatin remodeling. Extracellularly, HMGB proteins function as alarmins, which are endogenous molecules released upon tissue damage to activate the immune system. HMGB1 acts as a late mediator of inflammation and contributes to prolonged and sustained systemic inflammation in subjects with rheumatoid arthritis. By contrast, Hmgb2 -/- mice represent a relevant model of aging-related osteoarthritis (OA), which is associated with the suppression of HMGB2 expression in cartilage. Hmgb2 mutant mice not only develop early-onset OA but also exhibit a specific phenotype in the superficial zone (SZ) of articular cartilage. Given the similar expression and activation patterns of HMGB2 and β-catenin in articular cartilage, the loss of these pathways in the SZ of articular cartilage may lead to altered gene expression, cell death and OA-like pathogenesis. Moreover, HMGB2 regulates chondrocyte hypertrophy by mediating Runt-related transcription factor 2 expression and Wnt signaling. Therefore, one possible mechanism explaining the modulation of lymphoid enhancer binding factor 1 (LEF1)-dependent transactivation by HMGB2 is that a differential interaction between HMGB2 and nuclear factors affects the transcription of genes containing LEF1-responsive elements. The multiple functions of HMGB proteins reveal the complex roles of these proteins as innate and endogenous regulators of inflammation in joints and their cooperative roles in cartilage hypertrophy as well as in the maintenance of joint tissue homeostasis.
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Affiliation(s)
- Noboru Taniguchi
- Department of Orthopaedic Surgery, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan.
- Department of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
| | - Yasuhiko Kawakami
- Department of Genetics, Cell Biology and Development, and Stem Cell Institute, University of Minnesota, 321 Church St. SE, 6-160 Jackson Hall, Minneapolis, MN, 55455, USA
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima, 890-8544, Japan
| | - Martin Lotz
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, 10550 N. Torrey Pines Road, MEM 161, La Jolla, CA, 92037, USA
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20
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Su Z, Ni P, She P, Liu Y, Richard SA, Xu W, Zhu H, Wang J. Bio-HMGB1 from breast cancer contributes to M-MDSC differentiation from bone marrow progenitor cells and facilitates conversion of monocytes into MDSC-like cells. Cancer Immunol Immunother 2017; 66:391-401. [PMID: 27987020 PMCID: PMC11028758 DOI: 10.1007/s00262-016-1942-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 12/04/2016] [Indexed: 01/08/2023]
Abstract
Myeloid-derived suppressor cells (MDSC) constitute the major cell population that regulates immune responses. They are known to accumulate in tumors, chronic inflammatory and autoimmune diseases. Previous data indicate that high mobility group box 1(HMGB1) facilitates MDSC differentiation from bone marrow, suppresses NK cells, CD4+ and CD8+ T cells and is involved in cancer development. However, it remains unclear what potential mechanisms of HMGB1 facilitate MDSC differentiation. In the present work, we clearly demonstrate that HMGB1 secreted by cancer cells is N-glycosylated at Asn37, which facilitates monocytic (M)-MDSC differentiation from bone marrow via the p38/NFκB/Erk1/2 pathway and also contributes to conversion of monocytes into MDSC-like cells; HMGB1 blockade by a monoclonal antibody against the HMGB1 B box obviously reduced the accumulation of M-MDSC in tumor-bearing mice, delaying tumor growth and development; additionally, MDSC expansion and HMGB1 up-regulation were also found in breast cancer patients. All these data indicate that HMGB1 might be a potential tumor immunotherapy target.
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Affiliation(s)
- Zhaoliang Su
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
- Department of Immunology, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China
| | - Ping Ni
- Department of Immunology, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China
| | - Peng She
- Department of Immunology, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China
| | - Yueqin Liu
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Seidu A Richard
- Department of Immunology, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China
| | - Wenlin Xu
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Haitao Zhu
- The Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Jia Wang
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China.
- Department of Immunology, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China.
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21
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Qiao JY, Song L, Zhang YL, Luan B. [HMGB1/TLR4/NF-κB signaling pathway and role of vitamin D in asthmatic mice]. Zhongguo Dang Dai Er Ke Za Zhi 2017; 19:95-103. [PMID: 28100331 PMCID: PMC7390132 DOI: 10.7499/j.issn.1008-8830.2017.01.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 11/23/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the changes in the mRNA and protein expression of high-mobility group box 1 (HMGB1), Toll-like receptor 4 (TLR4), and nuclear factor-kappa B (NF-κB) in lung tissues of asthmatic mice and the interventional effect of vitamin D. METHODS A total of 48 BALB/c mice were randomly divided into control group, asthma group, and 1,25-(OH)2D3 intervention group, with 16 mice in each group. An animal model of asthma was established, and lung tissue samples were taken in each group at weeks 1 and 2 of ovalbumin challenging. Conventional hematoxylin-eosin staining was used to measure airway wall thickness. Immunohistochemical staining was used to observe the expression of HMGB1, TLR4, and NF-κB in lung tissues. Quantitative real-time PCR and Western blot were used to investigate the changes in the mRNA and protein expression of HMGB1, TLR4, and NF-κB. RESULTS At weeks 1 and 2 of ovalbumin challenging, compared with the control group, the asthma group had a significant increase in airway wall thickness and the intervention group had a significant reduction compared with the asthma group (P<0.05). The asthma group had significantly higher mRNA expression of HMGB1, TLR4, and NF-κB in lung tissues than the control group, and the intervention group had significantly lower mRNA expression of TLR4 and NF-κB than the asthma group (P<0.05). At week 1 of ovalbumin challenging, there was no significant difference in the mRNA expression of HMGB1 between the intervention group and the asthma group (P>0.05). At week 2, the intervention group had a significant reduction in the mRNA expression of HMGB1 compared with the asthma group (P<0.05). At weeks 1 and 2 of ovalbumin challenging, the asthma group had significantly higher protein expression of HMGB1, TLR4, and NF-κB in lung tissues than the control group, and the intervention group had significantly lower expression than the asthma group (P<0.05). Airway wall thickness was positively correlated with the mRNA expression of HMGB1, TLR4, and NF-κB in lung tissues (r=0.804, 0.895, and 0.834; P<0.05). CONCLUSIONS The HMGB1/TLR4/NF-κB signaling pathway plays an important role in the pathogenesis of asthma, and an appropriate amount of 1,25-(OH)2D3 has a regulatory effect on this pathway and may prevent the progression of asthma. Therefore, 1,25-(OH)2D3 is expected to become a new choice for the treatment of asthma.
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Affiliation(s)
- Jun-Ying Qiao
- Department of Pediatrics, Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
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22
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Qiao JY, Song L, Zhang YL, Luan B. [HMGB1/TLR4/NF-κB signaling pathway and role of vitamin D in asthmatic mice]. Zhongguo Dang Dai Er Ke Za Zhi 2017; 19:95-103. [PMID: 28100331 PMCID: PMC7390132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 11/23/2016] [Indexed: 11/04/2023]
Abstract
OBJECTIVE To investigate the changes in the mRNA and protein expression of high-mobility group box 1 (HMGB1), Toll-like receptor 4 (TLR4), and nuclear factor-kappa B (NF-κB) in lung tissues of asthmatic mice and the interventional effect of vitamin D. METHODS A total of 48 BALB/c mice were randomly divided into control group, asthma group, and 1,25-(OH)2D3 intervention group, with 16 mice in each group. An animal model of asthma was established, and lung tissue samples were taken in each group at weeks 1 and 2 of ovalbumin challenging. Conventional hematoxylin-eosin staining was used to measure airway wall thickness. Immunohistochemical staining was used to observe the expression of HMGB1, TLR4, and NF-κB in lung tissues. Quantitative real-time PCR and Western blot were used to investigate the changes in the mRNA and protein expression of HMGB1, TLR4, and NF-κB. RESULTS At weeks 1 and 2 of ovalbumin challenging, compared with the control group, the asthma group had a significant increase in airway wall thickness and the intervention group had a significant reduction compared with the asthma group (P<0.05). The asthma group had significantly higher mRNA expression of HMGB1, TLR4, and NF-κB in lung tissues than the control group, and the intervention group had significantly lower mRNA expression of TLR4 and NF-κB than the asthma group (P<0.05). At week 1 of ovalbumin challenging, there was no significant difference in the mRNA expression of HMGB1 between the intervention group and the asthma group (P>0.05). At week 2, the intervention group had a significant reduction in the mRNA expression of HMGB1 compared with the asthma group (P<0.05). At weeks 1 and 2 of ovalbumin challenging, the asthma group had significantly higher protein expression of HMGB1, TLR4, and NF-κB in lung tissues than the control group, and the intervention group had significantly lower expression than the asthma group (P<0.05). Airway wall thickness was positively correlated with the mRNA expression of HMGB1, TLR4, and NF-κB in lung tissues (r=0.804, 0.895, and 0.834; P<0.05). CONCLUSIONS The HMGB1/TLR4/NF-κB signaling pathway plays an important role in the pathogenesis of asthma, and an appropriate amount of 1,25-(OH)2D3 has a regulatory effect on this pathway and may prevent the progression of asthma. Therefore, 1,25-(OH)2D3 is expected to become a new choice for the treatment of asthma.
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Affiliation(s)
- Jun-Ying Qiao
- Department of Pediatrics, Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
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23
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Abstract
The receptor for advanced glycation end products (RAGE) is a novel protein increasingly studied in the pathogenesis of type 1 diabetes (T1D). RAGE is expressed by several immune cell types, including T cells, antigen-presenting cells, endothelial cells, and the endocrine cells of the pancreatic islets. RAGE binds various ligands including advanced glycation end products (AGEs), high-mobility group box protein 1 (HMGB1), S100 proteins, β-amyloid, β-sheet fibrils, and lipopolysaccharide. AGEs are a particularly interesting ligand because their exogenous introduction into the body can be accelerated by the consumption of AGE-rich processed foods. This review will detail RAGE isoforms and its ligands and discuss how RAGE binding on the aforementioned cells could be linked to T1D pathogenesis.
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Affiliation(s)
- Sherman S Leung
- Glycation and Diabetes, Mater Research Institute, Translational Research Institute, The University of Queensland, 37 Kent St, Woolloongabba, Brisbane, Queensland, Australia
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Josephine M Forbes
- Glycation and Diabetes, Mater Research Institute, Translational Research Institute, The University of Queensland, 37 Kent St, Woolloongabba, Brisbane, Queensland, Australia.
- Mater Clinical School, School of Medicine, The University of Queensland, Brisbane, Queensland, Australia.
| | - Danielle J Borg
- Glycation and Diabetes, Mater Research Institute, Translational Research Institute, The University of Queensland, 37 Kent St, Woolloongabba, Brisbane, Queensland, Australia
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24
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Takahashi H, Nishibori M. [Current status and future prospects in HMGB1 and receptor researches]. Nihon Rinsho 2016; 74:703-711. [PMID: 27333763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
High mobility group box protein1 (HMGB1), a ubiquitous chromatin component, is released by necrotic cells, apoptotic cells, and cells in profound distress. HMGB1 plays a critical role as a proinflammatory mediator. HMGB1 represents an important new target for drug development in a variety of inflammatory disorders, including stroke, brain injury, arteriosclerosis, and cancer. The antibodies against HMGB1 and its receptors ar hopeful candidates for immunotherapeutic strategy for treating patients with these diseases. HMGB1 forms immunostimulatory complexes by interaction with cytokines and other endogenous or exogenous factors. The HMGB1-partner molecule complexes can enhance the immune response induced by the ligand alone. The current status of HMGB1 works is summarized and future prospects will be provided in this review.
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Abstract
Cancer cell death can be immunogenic or nonimmunogenic depending on the initiating stimulus. The immunogenic characteristics of immunogenic cell death are mainly mediated by damage-associated molecular patterns represented by preapoptotic exposure of calreticulin and heat shock proteins (HSP70 and HSP90) from endoplasmic reticulum at the cell surface and active secretion of adenosintriphospate. Other damage-associated molecular patterns are produced in late stage apoptosis as high mobility group box 1 protein (HMGB1) into the extracellular milieu. Such signals operate on various receptors expressed by antigen presenting cells, mainly by population of dendritic cells, to stimulate the activation of antigen specific T-cell response. In this review, we describe the current known immunogenic cell death inducers and their potential to activate antitumor immune response.
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Tuan NQ, Lee W, Oh J, Kulkarni RR, Gény C, Jung B, Kang H, Bae JS, Na M. Flavanones and Chromones from Salicornia herbacea Mitigate Septic Lethality via Restoration of Vascular Barrier Integrity. J Agric Food Chem 2015; 63:10121-10130. [PMID: 26522440 DOI: 10.1021/acs.jafc.5b04069] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Salicornia herbacea is an annual halophytic glasswort that has been employed as a culinary vegetable, salad, and traditional medicinal resource. Chemical investigation of the aerial parts of S. herbacea led to the isolation of two new (1, 2) and known (3) flavanones as well as a new nature-derived (4) and two known chromone derivatives (5, 6). These purified compounds were evaluated for their suppressive potentials against the release of high-mobility group box 1 protein (HMGB1), which has captured attention as a viable target for alleviating serious septic manifestations or septicemia. The phenolic compounds improved the survival rates of cecal ligation and puncture operation (CLP) in murine models, simulating severe septic shock and its related complications, to 40-60%. These results collectively validate that flavanone- and chromone-based secondary metabolites may serve as prospective prodrugs or food additives that may be commercialized for the control of septic complications and lethality.
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Affiliation(s)
- Nguyen Quoc Tuan
- College of Pharmacy, Chungnam National University , Daejeon 34134, Republic of Korea
- Phutho College of Pharmacy , Viettri City, Phutho Province, Vietnam
| | - Wonhwa Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University , Daegu 41566, Republic of Korea
- BK21 Plus KNU Biomedical Convergence Program, Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University , Daegu 41944, Republic of Korea
| | - Joonseok Oh
- Department of BioMolecular Sciences, Division of Pharmacognosy, and Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi , University, Mississippi 38677, United States
| | - Roshan Rajan Kulkarni
- College of Pharmacy, Chungnam National University , Daejeon 34134, Republic of Korea
| | - Charlotte Gény
- Department of BioMolecular Sciences, Division of Pharmacognosy, and Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi , University, Mississippi 38677, United States
| | - Byeongjin Jung
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University , Daegu 41566, Republic of Korea
| | - Hyejin Kang
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University , Daegu 41566, Republic of Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University , Daegu 41566, Republic of Korea
| | - MinKyun Na
- College of Pharmacy, Chungnam National University , Daejeon 34134, Republic of Korea
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27
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Zhu X, Messer JS, Wang Y, Lin F, Cham CM, Chang J, Billiar TR, Lotze MT, Boone DL, Chang EB. Cytosolic HMGB1 controls the cellular autophagy/apoptosis checkpoint during inflammation. J Clin Invest 2015; 125:1098-110. [PMID: 25642769 DOI: 10.1172/jci76344] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 12/26/2014] [Indexed: 12/12/2022] Open
Abstract
The intracellular protein HMGB1 is released from cells and acts as a damage-associated molecular pattern molecule during many diseases, including inflammatory bowel disease (IBD); however, the intracellular function of HMGB1 during inflammation is poorly understood. Here, we demonstrated that cytosolic HMGB1 regulates apoptosis by protecting the autophagy proteins beclin 1 and ATG5 from calpain-mediated cleavage during inflammation. Colitis in mice with an intestinal epithelial cell-specific Hmgb1 deletion and patients with IBD were both characterized by increased calpain activation, beclin 1 and ATG5 cleavage, and intestinal epithelial cell (IEC) death compared with controls. In vitro cleavage assays and studies of enteroids verified that HMGB1 protects beclin 1 and ATG5 from calpain-mediated cleavage events that generate proapoptotic protein fragments. Together, our results indicate that HMGB1 is essential for mitigating the extent and severity of inflammation-associated cellular injury by controlling the switch between the proautophagic and proapoptotic functions of beclin 1 and ATG5 during inflammation. Moreover, these studies demonstrate that HMGB1 is pivotal for reducing tissue injury in IBD and other complex inflammatory disorders.
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28
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Li YL, Luan B, Qiao JY, Zhang LM. [Effects of different doses of 1,25-(OH)2D3 on expression of HMGB1 and IL-17 in the lungs of asthmatic mice]. Zhongguo Dang Dai Er Ke Za Zhi 2015; 17:190-195. [PMID: 25760848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To study the effects of 1,25-(OH)(2)D(3) on airway remodeling and expression of high mobility group box 1 (HMGB1) and IL-17 in asthmatic mice. METHODS Fifty female mice were randomly divided into 5 groups: control, asthma, low-dose, middle-dose, and high-dose intervention groups (n=10 each). Asthma was induced by intraperitoneal injections of ovalbumin (OVA) and aerosol inhalation of OVA solution. The low-dose, middle-dose, and high-dose intervention groups were administered with 1,25-(OH)(2)D(3) solution at the dosage of 1, 4 and 10 μg/kg respectively by intraperitoneal injections before asthma challenge. The airway structural changes were assessed by hematoxylin and eosin staining. mRNA expression levels of HMGB1 and IL-17 in the lung tissues were evaluated by RT-PCR. The protein levels of HMGB1 and IL-17 in the lung tissues were observed by immunohistochemistry. RESULTS The airway wall thickness, protein and mRNA expression levels of HMGB1 and IL-17 were higher in the untreated asthma group than in the control group (P<0.05). The airway wall thickness, protein and mRNA expression levels of HMGB1 and IL-17 were lower in the middle-dose and low-dose intervention groups than in the untreated asthma group, and the middle-dose intervention group demonstrated lower airway wall thickness, protein and mRNA expression levels of HMGB1 and IL-17 than in the low-dose intervention group (P<0.05). However, the airway wall thickness, protein and mRNA expression levels of HMGB1 and IL-17 in the high-dose intervention group were higher than in the untreated asthma group (P<0.05). CONCLUSIONS HMGB1 and IL-17 may be involved in the airway remodeling process in asthmatic mice. A moderate amount of HMGB1 and IL-17 may be involved in the airway remodeling process in asthmatic mice. A moderate amount of 1,25-(OH)(2)D(3) can improve the airway remodeling, but a higher dose of 1,25-(OH)(2)D(3) may affect adversely the airway remodeling process.
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Affiliation(s)
- Yan-Ling Li
- Department of Pediatrics, Third Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China.
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29
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Lee LC, Chen CM, Wang PR, Su MT, Lee-Chen GJ, Chang CY. Role of high mobility group box 1 (HMGB1) in SCA17 pathogenesis. PLoS One 2014; 9:e115809. [PMID: 25549101 PMCID: PMC4280131 DOI: 10.1371/journal.pone.0115809] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 11/27/2014] [Indexed: 12/20/2022] Open
Abstract
Spinocerebellar ataxia type 17 (SCA17) involves the expression of a polyglutamine (polyQ) expanded TATA-binding protein (TBP), a general transcription initiation factor. TBP interacts with other protein factors, including high mobility group box 1 (HMGB1), to regulate gene expression. Previously, our proteomic analysis of soluble proteins prepared from mutant TBP (TBP/Q61) expressing cells revealed a reduced concentration of HMGB1. Here, we show that HMGB1 can be incorporated into mutant TBP aggregates, which leads to reduced soluble HMGB1 levels in TBP/Q61∼79 expressing cells. HMGB1 overexpression reduced mutant TBP aggregation. HMGB1 cDNA and siRNA co-transfection, as well as an HSPA5 immunoblot and luciferase reporter assay demonstrated the important role of HMGB1 in the regulation of HSPA5 transcription. In starvation-stressed TBP/Q36 and TBP/Q79 cells, increased reactive oxygen species generation accelerated the cytoplasmic translocation of HMGB1, which accompanied autophagy activation. However, TBP/Q79 cells displayed a decrease in autophagy activation as a result of the reduction in the cytoplasmic HMGB1 level. In neuronal SH-SY5Y cells with induced TBP/Q61∼79 expression, HMGB1 expression was reduced and accompanied by a significant reduction in the total outgrowth and branches in the TBP/Q61∼79 expressing cells compared with the non-induced cells. The decreased soluble HMGB1 and impaired starvation-induced autophagy in cells suggest that HMGB1 may be a critical modulator of polyQ disease pathology and may represent a target for drug development.
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Affiliation(s)
- Li-Ching Lee
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Chiung-Mei Chen
- Department of Neurology, Chang Gung Memorial Hospital, Chang-Gung University College of Medicine, Taipei, Taiwan
| | - Pin-Rong Wang
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Ming-Tsan Su
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Guey-Jen Lee-Chen
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
- * E-mail: (G-JL-C); (C-YC)
| | - Chun-Yen Chang
- Science Education Center, National Taiwan Normal University, Taipei, Taiwan
- * E-mail: (G-JL-C); (C-YC)
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30
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Kang R, Chen R, Zhang Q, Hou W, Wu S, Cao L, Huang J, Yu Y, Fan XG, Yan Z, Sun X, Wang H, Wang Q, Tsung A, Billiar TR, Zeh HJ, Lotze MT, Tang D. HMGB1 in health and disease. Mol Aspects Med 2014; 40:1-116. [PMID: 25010388 PMCID: PMC4254084 DOI: 10.1016/j.mam.2014.05.001] [Citation(s) in RCA: 670] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 05/05/2014] [Indexed: 12/22/2022]
Abstract
Complex genetic and physiological variations as well as environmental factors that drive emergence of chromosomal instability, development of unscheduled cell death, skewed differentiation, and altered metabolism are central to the pathogenesis of human diseases and disorders. Understanding the molecular bases for these processes is important for the development of new diagnostic biomarkers, and for identifying new therapeutic targets. In 1973, a group of non-histone nuclear proteins with high electrophoretic mobility was discovered and termed high-mobility group (HMG) proteins. The HMG proteins include three superfamilies termed HMGB, HMGN, and HMGA. High-mobility group box 1 (HMGB1), the most abundant and well-studied HMG protein, senses and coordinates the cellular stress response and plays a critical role not only inside of the cell as a DNA chaperone, chromosome guardian, autophagy sustainer, and protector from apoptotic cell death, but also outside the cell as the prototypic damage associated molecular pattern molecule (DAMP). This DAMP, in conjunction with other factors, thus has cytokine, chemokine, and growth factor activity, orchestrating the inflammatory and immune response. All of these characteristics make HMGB1 a critical molecular target in multiple human diseases including infectious diseases, ischemia, immune disorders, neurodegenerative diseases, metabolic disorders, and cancer. Indeed, a number of emergent strategies have been used to inhibit HMGB1 expression, release, and activity in vitro and in vivo. These include antibodies, peptide inhibitors, RNAi, anti-coagulants, endogenous hormones, various chemical compounds, HMGB1-receptor and signaling pathway inhibition, artificial DNAs, physical strategies including vagus nerve stimulation and other surgical approaches. Future work further investigating the details of HMGB1 localization, structure, post-translational modification, and identification of additional partners will undoubtedly uncover additional secrets regarding HMGB1's multiple functions.
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Affiliation(s)
- Rui Kang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.
| | - Ruochan Chen
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Qiuhong Zhang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Wen Hou
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Sha Wu
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Lizhi Cao
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jin Huang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yan Yu
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Xue-Gong Fan
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Zhengwen Yan
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA; Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, China
| | - Xiaofang Sun
- Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Experimental Department of Institute of Gynecology and Obstetrics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510510, China
| | - Haichao Wang
- Laboratory of Emergency Medicine, The Feinstein Institute for Medical Research, Manhasset, NY 11030, USA
| | - Qingde Wang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Allan Tsung
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Herbert J Zeh
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Michael T Lotze
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Daolin Tang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.
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Abstract
With growing accounts of inflammatory diseases such as sepsis, greater understanding the immune system and the mechanisms of cellular immunity have become primary objectives in immunology studies. High mobility group box 1 (HMGB1) is a ubiquitous nuclear protein that is implicated in various aspects of the innate immune system as a damage-associated molecular pattern molecule and a late mediator of inflammation, as well as in principal cellular processes, such as autophagy and apoptosis. HMGB1 functions in the nucleus as a DNA chaperone; however, it exhibits cytokine-like activity when secreted by injurious or infectious stimuli. Extracellular HMGB1 acts through specific receptors to promote activation of the NF-κB signaling pathway, leading to production of cytokines and chemokines. These findings further implicate HMGB1 in lethal inflammatory diseases as a crucial regulator of inflammatory, injurious, and infectious responses. In this paper, we summarize the role of HMGB1 in inflammatory and non-inflammatory states and assess potential therapeutic approaches targeting HMGB1 in inflammatory diseases.
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Affiliation(s)
- Shin-Ae Lee
- Department of Microbiology, Yonsei University College of Medicine, Seoul, Korea
| | - Man Sup Kwak
- Department of Microbiology, Yonsei University College of Medicine, Seoul, Korea
| | - Sol Kim
- Department of Microbiology, Yonsei University College of Medicine, Seoul, Korea
| | - Jeon-Soo Shin
- Department of Microbiology, Yonsei University College of Medicine, Seoul, Korea. ; Brain Korea 21 PLUS for Medical Science, Yonsei University College of Medicine, Seoul, Korea. ; Severance Biomedical Science Institute and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
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32
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Parker KH, Sinha P, Horn LA, Clements VK, Yang H, Li J, Tracey KJ, Ostrand-Rosenberg S. HMGB1 enhances immune suppression by facilitating the differentiation and suppressive activity of myeloid-derived suppressor cells. Cancer Res 2014; 74:5723-33. [PMID: 25164013 DOI: 10.1158/0008-5472.can-13-2347] [Citation(s) in RCA: 177] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chronic inflammation often precedes malignant transformation and later drives tumor progression. Likewise, subversion of the immune system plays a role in tumor progression, with tumoral immune escape now well recognized as a crucial hallmark of cancer. Myeloid-derived suppressor cells (MDSC) are elevated in most individuals with cancer, where their accumulation and suppressive activity are driven by inflammation. Thus, MDSCs may define an element of the pathogenic inflammatory processes that drives immune escape. The secreted alarmin HMGB1 is a proinflammatory partner, inducer, and chaperone for many proinflammatory molecules that MDSCs develop. Therefore, in this study, we examined HMGB1 as a potential regulator of MDSCs. In murine tumor systems, HMGB1 was ubiquitous in the tumor microenvironment, activating the NF-κB signal transduction pathway in MDSCs and regulating their quantity and quality. We found that HMGB1 promotes the development of MDSCs from bone marrow progenitor cells, contributing to their ability to suppress antigen-driven activation of CD4(+) and CD8(+) T cells. Furthermore, HMGB1 increased MDSC-mediated production of IL-10, enhanced crosstalk between MDSCs and macrophages, and facilitated the ability of MDSCs to downregulate expression of the T-cell homing receptor L-selectin. Overall, our results revealed a pivotal role for HMGB1 in the development and cancerous contributions of MDSCs.
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MESH Headings
- Animals
- Antigens, Neoplasm/immunology
- Bone Marrow Cells/physiology
- Cell Differentiation
- Cell Line, Tumor
- Coculture Techniques
- Female
- HMGB1 Protein/physiology
- Interleukin-10/metabolism
- L-Selectin/metabolism
- Lymphocyte Activation
- Macrophages, Peritoneal/immunology
- Macrophages, Peritoneal/metabolism
- Mammary Neoplasms, Experimental/immunology
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/pathology
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Myeloid Cells/physiology
- NF-kappa B/metabolism
- Neoplasm Transplantation
- Stem Cells/physiology
- T-Lymphocytes/immunology
- Tumor Escape
- Tumor Microenvironment
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Affiliation(s)
- Katherine H Parker
- Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, Maryland
| | - Pratima Sinha
- Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, Maryland
| | - Lucas A Horn
- Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, Maryland
| | - Virginia K Clements
- Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, Maryland
| | - Huan Yang
- Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York
| | - Jianhua Li
- Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York
| | - Kevin J Tracey
- Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York
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33
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Ku SK, Kim JA, Bae JS. Vascular barrier protective effects of piperlonguminine in vitro and in vivo. Inflamm Res 2014; 63:369-79. [PMID: 24468889 DOI: 10.1007/s00011-014-0708-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 12/29/2013] [Accepted: 01/12/2014] [Indexed: 01/05/2023] Open
Abstract
AIM AND OBJECTIVE The nuclear DNA binding protein known as high-mobility group box 1 (HMGB1) acts as a late mediator of severe vascular inflammatory conditions, such as sepsis and septic shock. Piperlonguminine (PL), an important component of Piper longum fruit, is known to exhibit anti-hyperlipidemic, anti-platelet, and anti-melanogenesis activities. However, little is known about its effects on HMGB1-mediated inflammatory response. METHODS We investigated the effects of PL on HMGB1-mediated inflammatory response by monitoring the effects of PL on lipopolysaccharide or cecal ligation and puncture (CLP)-mediated release of HMGB1, as well as on the modulation of HMGB1-mediated inflammatory responses. RESULTS According to our data, PL caused inhibition of the release of HMGB1 and downregulation of HMGB1-dependent inflammatory responses in human endothelial cells. PL also inhibited HMGB1-mediated hyperpermeability and leukocyte migration in mice. In addition, treatment with PL reduced the CLP-induced release of HMGB1 and sepsis-related mortality. CONCLUSION These results indicate that PL could be a candidate therapeutic agent for various severe vascular inflammatory diseases via inhibition of the HMGB1 signaling pathway.
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Affiliation(s)
- Sae-Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan, 712-715, Republic of Korea
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Fang P, Pan HC, Lin SL, Zhang WQ, Rauvala H, Schachner M, Shen YQ. HMGB1 contributes to regeneration after spinal cord injury in adult zebrafish. Mol Neurobiol 2014; 49:472-83. [PMID: 23996344 DOI: 10.1007/s12035-013-8533-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 08/09/2013] [Indexed: 02/05/2023]
Abstract
High mobility group box 1 (HMGB1, also called amphoterin) facilitates neurite outgrowth in early development, yet can exacerbate pathology and inhibit regeneration by inducing adverse neuroinflammation when released from dying cells, suggesting that HMGB1 plays a critical, yet undefined role in neuroregeneration. We explored whether HMGB1 contributes to recovery after complete spinal cord transection in adult zebrafish. Quantitative PCR and in situ hybridization revealed that HMGB1 mRNA levels decreased between 12 h to 11 days after spinal cord injury (SCI), then returned to basal levels by 21 days. Western blot and immunohistological analyses indicated that the time course of HMGB1 protein expression after SCI parallels that of mRNA. Immunofluorescence staining revealed that HMGB1 translocates from nuclei into the cytoplasm of spinal motoneurons at 4 and 12 h (acute stage) following SCI, then accumulates in the nuclei of motoneurons during the ensuing chronic stage (after 6 days following SCI). Immunohistology of transgenic zebrafish, expressing green fluorescent protein in blood vessels, showed enhanced HMGB1 expression in blood vessels in the vicinity of motoneurons. Application of anti-sense HMGB1 morpholinos inhibited locomotor recovery by 34 % and decreased axonal regeneration by 34 % compared to fish treated with a control morpholino. The present study shows that HMGB1 expression increases in both endothelial cells and motoneurons, suggesting that HMGB1 promotes recovery from SCI not only through enhancing neuroregeneration, but also by increasing angiogenesis. The inflammatory effects of HMGB1 are minimized through the decrease in HMGB1 expression during the acute stage.
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Affiliation(s)
- Ping Fang
- Center for Neuroscience, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, China
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35
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Abstract
Myocardial ischemia/reperfusion (I/R) is the most common cause of myocardial inflammation, which is primarily a manifestation of the innate immune responses. Innate immunity is activated when pattern recognition receptors (PRRs) respond to molecular patterns common to microbes and to danger signals expressed by injured or infected cells, so called pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs). The expression of various PRRs in cardiomyocytes and the release of DAMPs from cardiomyocytes subjected to I/R injury, through active mechanisms as well as passive processes, enable cardiomyocytes to generate innate immune responses. Studies in isolated heart and cardiomyocytes have confirmed the inflammatory and functional effects of cardiac PRRs especially Toll-like receptors in response to I/R-derived DAMPs, such as heat shock proteins. This review addresses the active role of cardiomyocytes in mediating innate inflammatory responses to myocardial I/R. We propose that cardiomyocytes act as innate immune cells in myocardial I/R injury.
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Affiliation(s)
- Li Lin
- Department of Physiology, Second Military Medical University, Shanghai 200433, China
| | - Anne A Knowlton
- Molecular and Cellular Cardiology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA; Department of Medicine, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA; Department of Pharmacology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA; The Northern California VA, Sacramento, CA, USA.
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36
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Nishibori M, Takahashi H. [Discovery of drugs targeting HMGB1-RAGE system]. Nihon Yakurigaku Zasshi 2014; 143:3. [PMID: 24579204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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37
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Ito T. [Roles of thrombomodulin as a nuclear safeguard]. Nihon Yakurigaku Zasshi 2014; 143:18-21. [PMID: 24420132 DOI: 10.1254/fpj.143.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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38
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Mori S, Takahashi H, Toyomura T. [Platform for drug discovery targeting HMGB1, AGEs-RAGE response]. Nihon Yakurigaku Zasshi 2014; 143:14-17. [PMID: 24420131 DOI: 10.1254/fpj.143.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Whitman BA, Knapp DJ, Werner DF, Crews FT, Breese GR. The cytokine mRNA increase induced by withdrawal from chronic ethanol in the sterile environment of brain is mediated by CRF and HMGB1 release. Alcohol Clin Exp Res 2013; 37:2086-97. [PMID: 23895427 PMCID: PMC3815509 DOI: 10.1111/acer.12189] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 05/02/2013] [Indexed: 01/03/2023]
Abstract
BACKGROUND Many neurobiological factors may initiate and sustain alcoholism. Recently, dysregulation of the neuroimmune system by chronic ethanol (CE) has implicated Toll-like receptor 4 (TLR4) activation. Even though TLR4s are linked to CE initiation of brain cytokine mRNAs, the means by which CE influences neuroimmune signaling in brain in the absence of infection remains uncertain. Therefore, the hypothesis is tested that release of an endogenous TLR4 agonist, high-mobility group box 1 (HMGB1) and/or corticotropin-releasing factor (CRF) during CE withdrawal are responsible for CE protocols increasing cytokine mRNAs. METHODS Acute ethanol (EtOH; 2.75 g/kg) and acute lipopolysaccharide (LPS; 250 μg/kg) dosing on cytokine mRNAs are first compared. Then, the effects of chronic LPS exposure (250 μg/kg for 10 days) on cytokine mRNAs are compared with changes induced by CE protocols (15 days of continuous 7% EtOH diet [CE protocol] or 3 intermittent 5-day cycles of 7% EtOH diet [CIE protocol]). Additionally, TLR4, HMGB1, and downstream effector mRNAs are assessed after CE, CIE, and chronic LPS. To test whether HMGB1 and/or CRF support the CE withdrawal increase in cytokine mRNAs, the HMGB1 antagonists, glycyrrhizin and ethyl pyruvate, and a CRF1 receptor antagonist (CRF1RA) are administered during 24 hours of CE withdrawal. RESULTS While cytokine mRNAs were not increased following acute EtOH, acute LPS increased all cytokine mRNAs 4 hours after injection. CE produced no change in cytokine mRNAs prior to CE removal; however, the CE and CIE protocols increased cytokine mRNAs by 24 hours after withdrawal. In contrast, chronic LPS produced no cytokine mRNA changes 24 hours after LPS dosing. TLR4 mRNA was elevated 24 hours following both CE protocols and chronic LPS exposure. While chronic LPS had no effect on HMGB1 mRNA, withdrawal from CE protocols significantly elevated HMGB1 mRNA. Systemic administration of HMGB1 antagonists or a CRF1RA significantly reduced the cytokine mRNA increase following CE withdrawal. The CRF1RA and the HMGB1 antagonist, ethyl pyruvate, also reduced the HMGB1 mRNA increase that followed CE withdrawal. CONCLUSIONS By blocking HMGB1 or CRF action during CE withdrawal, evidence is provided that HMGB1 and CRF release are critical for the CE withdrawal induction of selected brain cytokine mRNAs. Consequently, these results clarify a means by which withdrawal from CE exposure activates neuroimmune function in the sterile milieu of brain.
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Affiliation(s)
- Buddy A. Whitman
- Bowles Center for Alcohol Studies, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Curriculum in Neurobiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Darin J. Knapp
- Bowles Center for Alcohol Studies, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Psychiatry, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Curriculum in Neurobiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - David F. Werner
- Bowles Center for Alcohol Studies, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Psychology, Center for Development and Behavioral Neuroscience, Binghamton University – State University of New York, Binghamton, NY
| | - Fulton T. Crews
- Bowles Center for Alcohol Studies, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Psychiatry, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Curriculum in Neurobiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- The UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - George R. Breese
- Bowles Center for Alcohol Studies, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Psychiatry, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- Curriculum in Neurobiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
- The UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC
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40
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Diao H, Kang Z, Han F, Jiang W. Astilbin protects diabetic rat heart against ischemia-reperfusion injury via blockade of HMGB1-dependent NF-κB signaling pathway. Food Chem Toxicol 2013; 63:104-10. [PMID: 24211745 DOI: 10.1016/j.fct.2013.10.045] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 10/04/2013] [Accepted: 10/29/2013] [Indexed: 01/01/2023]
Abstract
Astilbin, a flavonoid compound was isolated from the rhizome of Smilax china L. In this study, we investigated the anti-myocardial ischemia and reperfusion (I/R) injury effect of Astilbin on diabetic rats in vivo and elucidated the potential mechanism in vitro. The results showed that Astilbin significantly attenuated hypoxia-induced cell injury in a concentration-dependent manner. Treatment of H9c2 cells with Astilbin at 15 μM blocked nuclear factor kappaB (NF-κB) phosphorylation by blocking High-mobility group box protein 1 (HMGB1) expression. Treatment of diabetic rats with Astilbin by intravenous injection (i.v.) at a single dose of 50 mg/kg protected the rats from myocardial I/R injury as indicated by decreasing infarct volume, improving hemodynamics and reducing myocardial damage, and also lowered serum levels of pro-inflammatory factors, reduced HMGB1 and phosphorylated NF-κB expression in ischemic myocardial tissue from diabetic rats. Additionally, treatment of diabetic rats with Astilbin at dose of 50 mg/kg by i.v. for continuous 14 days attenuated cardiac remodeling in the model myocardial I/R injury. These protective effects suggested that Astilbin might be due to block of the myocardial inflammatory cascade via the HMGB1-dependent NF-κB signaling pathway.
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Affiliation(s)
- Huiling Diao
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai 264003, PR China
| | - ZeChun Kang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai 264003, PR China
| | - Fang Han
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai 264003, PR China
| | - Wanglin Jiang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai 264003, PR China.
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41
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Kaneko M, Shintani Y, Narita T, Ikebe C, Tano N, Yamahara K, Fukushima S, Coppen SR, Suzuki K. Extracellular high mobility group box 1 plays a role in the effect of bone marrow mononuclear cell transplantation for heart failure. PLoS One 2013; 8:e76908. [PMID: 24204700 PMCID: PMC3799896 DOI: 10.1371/journal.pone.0076908] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 08/27/2013] [Indexed: 01/06/2023] Open
Abstract
Transplantation of unfractionated bone marrow mononuclear cells (BMCs) repairs and/or regenerates the damaged myocardium allegedly due to secretion from surviving BMCs (paracrine effect). However, donor cell survival after transplantation is known to be markedly poor. This discrepancy led us to hypothesize that dead donor BMCs might also contribute to the therapeutic benefits from BMC transplantation. High mobility group box 1 (HMGB1) is a nuclear protein that stabilizes nucleosomes, and also acts as a multi-functional cytokine when released from damaged cells. We thus studied the role of extracellular HMGB1 in the effect of BMC transplantation for heart failure. Four weeks after coronary artery ligation in female rats, syngeneic male BMCs (or PBS only as control) were intramyocardially injected with/without anti-HMGB1 antibody or control IgG. One hour after injection, ELISA showed that circulating extracellular HMGB1 levels were elevated after BMC transplantation compared to the PBS injection. Quantitative donor cell survival assessed by PCR for male-specific sry gene at days 3 and 28 was similarly poor. Echocardiography and catheterization showed enhanced cardiac function after BMC transplantation compared to PBS injection at day 28, while this effect was abolished by antibody-neutralization of HMGB1. BMC transplantation reduced post-infarction fibrosis, improved neovascularization, and increased proliferation, while all these effects in repairing the failing myocardium were eliminated by HMGB1-inhibition. Furthermore, BMC transplantation drove the macrophage polarization towards alternatively-activated, anti-inflammatory M2 macrophages in the heart at day 3, while this was abolished by HMGB1-inhibition. Quantitative RT-PCR showed that BMC transplantation upregulated expression of an anti-inflammatory cytokine IL-10 in the heart at day 3 compared to PBS injection. In contrast, neutralizing HMGB1 by antibody-treatment suppressed this anti-inflammatory expression. These data suggest that extracellular HMGB1 contributes to the effect of BMC transplantation to recover the damaged myocardium by favorably modulating innate immunity in heart failure.
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Affiliation(s)
- Masahiro Kaneko
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, London, United Kingdom
| | - Yasunori Shintani
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, London, United Kingdom
| | - Takuya Narita
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, London, United Kingdom
| | - Chiho Ikebe
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, London, United Kingdom
| | - Nobuko Tano
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, London, United Kingdom
| | - Kenichi Yamahara
- Department of Regenerative Medicine and Tissue Engineering, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Satsuki Fukushima
- Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Steven R. Coppen
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, London, United Kingdom
| | - Ken Suzuki
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary, University of London, London, United Kingdom
- * E-mail:
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42
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Valdés-Ferrer SI, Rosas-Ballina M, Olofsson PS, Lu B, Dancho ME, Ochani M, Li JH, Scheinerman JA, Katz DA, Levine YA, Hudson LK, Yang H, Pavlov VA, Roth J, Blanc L, Antoine DJ, Chavan SS, Andersson U, Diamond B, Tracey KJ. HMGB1 mediates splenomegaly and expansion of splenic CD11b+ Ly-6C(high) inflammatory monocytes in murine sepsis survivors. J Intern Med 2013; 274:381-90. [PMID: 23808943 PMCID: PMC4223507 DOI: 10.1111/joim.12104] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/28/2013] [Indexed: 01/26/2023]
Abstract
BACKGROUND More than 500,000 hospitalized patients survive severe sepsis annually in the USA. Recent epidemiological evidence, however, demonstrated that these survivors have significant morbidity and mortality, with 3-year fatality rates higher than 70%. To investigate the mechanisms underlying persistent functional impairment in sepsis survivors, here we developed a model to study severe sepsis survivors following cecal ligation and puncture (CLP). METHODS Sepsis was induced in mice by CLP and survivors were followed for twelve weeks. Spleen and blood were collected and analyzed at different time points post-sepsis. RESULTS We observed that sepsis survivors developed significant splenomegaly. Analysis of the splenic cellular compartments revealed a major expansion of the inflammatory CD11b+ Ly-6CHigh pool. Serum high-mobility group box 1 (HMGB1) levels in the sepsis surviving mice were significantly elevated for 4-6 weeks after post-sepsis, and administration of an anti-HMGB1 monoclonal antibody significantly attenuated splenomegaly as well as splenocyte priming. Administration of recombinant HMGB1 to naive mice induced similar splenomegaly, leukocytosis and splenocyte priming as observed in sepsis survivors. Interestingly analysis of circulating HMGB1 from sepsis survivors by mass spectroscopy demonstrated a stepwise increase of reduced form of HMGB1 (with known chemo-attractant properties) during the first 3 weeks, followed by disulphide form (with known inflammatory properties) 4-8 weeks after CLP. DISCUSSION Our results indicate that prolonged elevation of HMGB1 is a necessary and sufficient mediator of splenomegaly and splenocyte expansion, as well as splenocyte inflammatory priming in murine severe sepsis survivors.
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Affiliation(s)
- S I Valdés-Ferrer
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
- The Elmezzi Graduate School of Molecular MedicineManhasset, NY, USA
| | - M Rosas-Ballina
- Focal Area Infection Biology, Biozentrum, University of BaselBasel, Switzerland
| | - P S Olofsson
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - B Lu
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
- The Elmezzi Graduate School of Molecular MedicineManhasset, NY, USA
| | - M E Dancho
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - M Ochani
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - J H Li
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - J A Scheinerman
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - D A Katz
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - Y A Levine
- SetPoint Medical, Valen Inc.Valencia, CA, USA
| | - L K Hudson
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - H Yang
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - V A Pavlov
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - J Roth
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - L Blanc
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - D J Antoine
- MRC Centre for Drug Safety Science, Molecular and Clinical Pharmacology, University of LiverpoolLiverpool, UK
| | - S S Chavan
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - U Andersson
- Department of Women’s and Children’s Health, Karolinska Institute and Karolinska University HospitalStockholm, Sweden
| | - B Diamond
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
| | - K J Tracey
- The Laboratory of Biomedical Sciences, The Feinstein Institute for Medical ResearchManhasset, NY, USA
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43
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Bellussi LM, Iosif C, Sarafoleanu C, Jianu E, Duda R, Panaitescu E, Passali FM, Passali D. Are HMGB1 protein expression and secretion markers of upper airways inflammatory diseases? J BIOL REG HOMEOS AG 2013; 27:791-804. [PMID: 24152844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Taking into account the mechanisms at the origin of the airways inflammatory pathologies, our attention has been recently addressed to the study of HMGB1, a protein belonging to the group of alarmins. Alarmins are those molecules which in homeostatic conditions carry out specific metabolic and/or structural functions; furthermore, after a direct trauma or an infection, these molecules are released in the extracellular milieu becoming there activators of the innate immunity and powerful inflammatory factors. In a previous research we found in patients affected with chronic rhinosinusitis with/without nasal polyposis (CRSwNP) an increased expression of this protein in the nucleus of nasal mucosa epithelial cells. HMGB1 was overexpressed also as focal subepithelial infiltration and in the inflammatory cells of patients in comparison with controls. These results suggested a possible pathogenetic role of HMGB1 in CRSwNP. The aim of the present study was to investigate if the expression and localization (nuclear, cytoplasmic and extracellular) of the HMGB1 protein-cytokine is somehow related to the severity and complexity of the histological and clinical picture. We noticed values which have around statistical significance between nuclear HMGB1 and eosinophils infiltrate (p=0.0607) and between nuclear HMGB1 and inflammatory infiltrate (P=0.0524). Even more significant was the correlation between extra-cellular HMGB1 expression and the presence of allergic-hyper reactive conditions such as asthma, allergic rhinitis, NSADs intolerance, antibiotic allergy. HMGB1 was significantly more expressed in the nucleus (p=0.0499) and in the intercellular space (p=0.0380) in allergic patients than in non-allergic subjects and as extra-cellular infiltrate in patients with NSADs intolerance (p=0.0022). These results confirm the role of HMGB1 in the pathogenesis of chronic rhinosinusitis with/without nasal polyposis; besides the higher extra-cellular expression in patients with a more severe clinical and inflammatory picture and the presence of associated co-morbidities suggests to seek for new compounds: these compounds, decreasing the extra-cellular release of this alarmin through a scavenger mechanism, could keep under control the inflammatory process without interfering with the nuclear transcriptional messengers.
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Affiliation(s)
- L M Bellussi
- Department of Medical Surgical and Neuro Sciences, O.R.L. Division University of Siena, Siena, Italy
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Yen MH. High-mobility group box 1 protein may be a therapeutic target in inflammation. Acta Anaesthesiol Taiwan 2013; 51:1-2. [PMID: 23711597 DOI: 10.1016/j.aat.2013.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Hagiwara S, Noguchi T. [Relationships between damage-associated molecular patterns and organ injury]. Masui 2013; 62:290-295. [PMID: 23544330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Recently studies have demonstrated that cell components called damage-associated molecular patterns (DAMPs) are secreted from cells in response to inflammation and organ injury. While DAMPs are maintained within the cell under normal conditions, they are secreted in response to systemic or chronic inflammation. DAMPs are recognized by pattern recognition receptors (PRRs) such as Toll-like receptor (TLR) and receptor for advanced glycation end products (RAGE). DAMPs also induce the phosphorylation of various intracellular proteins and activate NF-kappaB signaling. This induces an inflammatory response via cytokine production and activation of macrophages and dendritic cells. In essence, DAMPs alert the immune system to danger. Some DAMPs are considered therapeutic targets for acute systemic inflammation (e.g., sepsis). Indeed, anti-HMGB1 and anti-histone antibodies attenuated the inflammatory response and organ injury in a systemic inflammation model. Anti-RAGE antibodies were also shown to have beneficial effects in an animal inflammation model. These findings suggest that DAMPs may serve as novel therapeutic targets against severe systemic inflammation as well. We anticipate that in the near future, anti-DAMP therapy may become more widespread in the clinical setting.
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Affiliation(s)
- Satoshi Hagiwara
- Department of Anesthesiology and Intensive Care Medicine, Oita University Faculty of Medicine, Yufu 879-5593
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Wolf M, Lossdörfer S, Abuduwali N, Jäger A. Potential role of high mobility group box protein 1 and intermittent PTH (1-34) in periodontal tissue repair following orthodontic tooth movement in rats. Clin Oral Investig 2012; 17:989-97. [PMID: 22777389 DOI: 10.1007/s00784-012-0777-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 06/21/2012] [Indexed: 12/31/2022]
Abstract
OBJECTIVES Recent studies indicate that high mobility group box protein 1 (HMGB1) can be released by necrotic and damaged cells and functions as an alarmin that is recognized by the innate immune system. Little is known about the role of HMGB1 within the periodontal ligament (PDL). Therefore, we examined HMGB1 expression by PDL cells in vitro and compared the findings to an in vivo model of orthodontically induced tooth root resorption. In addition, we addressed the question of whether a potentially anabolic intermittent administration of parathyroid hormone (iPTH) would modulate the expression of HMGB1. MATERIALS AND METHODS In confluent PDL cell cultures, HMGB1 messenger RNA (mRNA) expression was quantified by real-time polymerase chain reaction. In a rat model comprising 25 animals, mechanical loading for 5 days was followed by administration of either iPTH (1-34) systemically or sham injections for up to 56 days. HMGB1 expression was determined by means of immunohistochemistry and histomorphometry. RESULTS The in vitro experiments revealed an inhibitory effect of iPTH on basal HMGB1 mRNA expression in confluent PDL cells. In vivo, the mechanical force-induced enhanced HMGB1 protein expression declined time dependently. Intermittent PTH further inhibited HMGB1 expression. The significantly higher basal HMGB1 protein expression in the former compression side was followed by a more pronounced time- and iPTH-dependent decline in the same area. CONCLUSIONS These data indicate a major role for HMGB1 in the regulation of PDL wound healing following mechanical load-induced tissue injury. CLINICAL RELEVANCE The findings point to the potential benefit of iPTH in the attempt to support these immune-associated reparative processes.
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Affiliation(s)
- M Wolf
- Department of Orthodontics, Dental Clinic, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
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Abstract
How blood-borne inflammatory cells cause tissue damage in the brain after ischemic stroke remains elusive. Peroxiredoxins, cytosolic antioxidant proteins vital for redox balance, are released extracellularly from ischemic cells, acting as potent ‘danger signals’ that activate macrophages and lead to a harmful cytokine response, a new study shows. The findings unveil a new culprit in the delayed phase of ischemic injury and suggest new therapeutic approaches (pages 911–917).
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Affiliation(s)
- Lidia Garcia-Bonilla
- Division of Neurobiology, Department of Neurology and Neuroscience, Weill Cornell Medical College, New York, New York, USA
| | - Costantino Iadecola
- Division of Neurobiology, Department of Neurology and Neuroscience, Weill Cornell Medical College, New York, New York, USA
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Kim TH, Ku SK, Lee T, Bae JS. Vascular barrier protective effects of phlorotannins on HMGB1-mediated proinflammatory responses in vitro and in vivo. Food Chem Toxicol 2012; 50:2188-95. [PMID: 22504532 DOI: 10.1016/j.fct.2012.03.082] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 03/22/2012] [Accepted: 03/28/2012] [Indexed: 11/18/2022]
Abstract
The phlorotannins (phloroglucinol, eckol, and dieckol) are active compounds found in Eisenia bicyclis, and have been widely investigated for their antioxidant, anti-tumor, and anti-cancer activities. In this study, we investigated the protective effects of these phlorotannins against pro-inflammatory responses in human umbilical vein endothelial cells (HUVECs) and in mice treated by high mobility group box 1 protein (HMGB1), and the signaling pathways involved. The protective activities of the phlorotannins were determined by measuring permeability, leukocyte adhesion and migration, and the activations of pro-inflammatory proteins in HMGB1-activated HUVECs. We found that the phlorotannins inhibited; lipopolysaccharide (LPS)-induced HMGB1 release, HMGB1-mediated barrier disruption, the expressions of cell adhesion molecules (CAMs), and the adhesion/transendothelial migration of leukocytes to human endothelial cells. The phlorotannins also suppressed acetic acid induced-hyperpermeability and carboxymethylcellulose-induced leukocytes migration in vivo. Further studies revealed that the hydroxyl groups on dieckol positively regulated these vascular barrier protective effects. Collectively, these results suggest that phloroglucinol, eckol, and dieckol protect vascular barrier integrity by inhibiting hyperpermeability, the expressions of CAMs, and the adhesion and migration of leukocytes, which confirms their potential usefulnesses for the treatment of vascular inflammatory diseases.
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Affiliation(s)
- Tae Hoon Kim
- Department of Herbal Medicinal Pharmacology, Daegu Haany University, Gyeongsan 712-715, Republic of Korea
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Zitvogel L, Hannani D, Aymeric L, Kepp O, Martins I, Kroemer G. [Antitumoral immunization during cancer chemotherapy]. Bull Acad Natl Med 2012; 196:1075-1086. [PMID: 23596856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Most anticancer agents are thought to act through direct induction of tumoral, stromal and endothelial cell death by apoptosis or necrosis. In a 2008 issue of Bulletin de l'Académie Nationale de Médecine, we described an alternative (or complementary) theory whereby the immune system participates in the antitumoral effects of some chemotherapy or radiotherapy regimens by promoting an immunogenic cell death pathway. In particular, we showed the critical importance of two pre-mortem stressors that determine the immunogenicity of dying tumor cells. The first, an ER stress response culminating in calreticuline exposure at the tumor cell surface, is mandatory for the uptake and efficient phagocytosis of apoptotic bodies by dendritic cells. In the second, autophagy leads to the release of ATP by dying tumor cells, resulting in the recruitment of inflammatory phagocytes and antigen-presenting cells, and also triggering the inflammasome that causes IL-1beta release and CD8+ T cell polarization. The tumor microenvironment changes following chemotherapy, favoring sequential accumulation of a series of innate and cognate effectors that act in a coordinated fashion to promote tumor eradication. These findings will help to identify immune predictors of the response to conventional anticancer treatments and to design innovative combinatorial immunochemotherapy regimens.
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Rojo-León V, Aguilar-Cázares D, Prado-García H, Carlos-Reyes A, López-González JS. [Participation of damage-associated molecular patterns in conventional treatment of cancer]. Rev Invest Clin 2012; 64:284-293. [PMID: 23045951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Cells of the innate immune system are involved in discriminating between the innocuous cell death (apoptosis) which occurs in tissues during homeostasis, and the cell death associated to tissue damage (necrosis). Recently, a new variant of apoptosis termed immunogenic apoptosis has been described. In cancer, this type of cell death has acquired great relevance. In vitro and in vivo experimental models support that radiotherapy and some chemotherapeutic drugs induce the immunogenic apoptosis of malignant cells. Dying cells express at cytoplasmic membrane or release several nuclear or intracytoplasmic molecules termed "danger signals" or damage associated molecular patterns (DAMPs). DAMPs alert the organism and play a role inducing an efficient anti-tumor immune response. In this review, the importance of cell death by immunogenic apoptosis, the cytotoxic drugs that induce this type of cell death, the biologic role of some DAMPs and their participation in the activation of the antitumor immune response, in particular in the phagocytic cell, are indicated. The goal of this information should impact in improving the participation of the immune system in the recognition and efficient elimination of the residual tumor cells and to overcome the evasion mechanisms of tumor cells. This knowledge should lead to a better control of the growth of tumors with a concomitant reduction in the tumor recurrence. Also, an increase in the survival of the cancer patients or probably their definitive cure could be reached in the future.
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Affiliation(s)
- Verónica Rojo-León
- Laboratorio de Cáncer Pulmonar, Unidad de Investigación, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas
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