1
|
Liang G, Hu JY, Liu RJ, Chao YP, Hu YF, Zheng H, Pan XY, Li YJ, Gong YH, Lin C, Lin JH, Wang JD, Li TX, Pan JP, Guo DY. α-Ketoglutarate plays an inflammatory inhibitory role by regulating scavenger receptor class a expression through N6-methyladenine methylation during sepsis. Eur J Immunol 2024:e2350655. [PMID: 38973083 DOI: 10.1002/eji.202350655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 07/09/2024]
Abstract
Sepsis arises from an uncontrolled inflammatory response triggered by infection or stress, accompanied by alteration in cellular energy metabolism, and a strong correlation exists between these factors. Alpha-ketoglutarate (α-KG), an intermediate product of the TCA cycle, has the potential to modulate the inflammatory response and is considered a crucial link between energy metabolism and inflammation. The scavenger receptor (SR-A5), a significant pattern recognition receptor, assumes a vital function in anti-inflammatory reactions. In the current investigation, we have successfully illustrated the ability of α-KG to mitigate inflammatory factors in the serum of septic mice and ameliorate tissue damage. Additionally, α-KG has been shown to modulate metabolic reprogramming and macrophage polarization. Moreover, our findings indicate that the regulatory influence of α-KG on sepsis is mediated through SR-A5. We also elucidated the mechanism by which α-KG regulates SR-A5 expression and found that α-KG reduced the N6-methyladenosine level of macrophages by up-regulating the m6A demethylase ALKBH5. α-KG plays a crucial role in inhibiting inflammation by regulating SR-A5 expression through m6A demethylation during sepsis. The outcomes of this research provide valuable insights into the relationship between energy metabolism and inflammation regulation, as well as the underlying molecular regulatory mechanism.
Collapse
Affiliation(s)
- Gang Liang
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
- Zhejiang University school of medicine, Hangzhou, P. R. China
| | - Jia-Yan Hu
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Rou-Jun Liu
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Yu-Peng Chao
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Yi-Fan Hu
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Hong Zheng
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Xin-Yu Pan
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Yuan-Jing Li
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Yang-Hui Gong
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Chi Lin
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Jia-Hao Lin
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Jia-Dong Wang
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Tong-Xin Li
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
| | - Jian-Ping Pan
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
- Institute of Translational Medicine, Hangzhou City University, Hangzhou, P.R. China
| | - Dong-Yang Guo
- Department of Clinical Medicine, Hangzhou City University School of Medicine, Hangzhou, P.R. China
- Institute of Translational Medicine, Hangzhou City University, Hangzhou, P.R. China
| |
Collapse
|
2
|
Wang H, Liu J, Zhang Z, Peng J, Wang Z, Yang L, Wang X, Hu S, Hong L. β-Sitosterol targets ASS1 for Nrf2 ubiquitin-dependent degradation, inducing ROS-mediated apoptosis via the PTEN/PI3K/AKT signaling pathway in ovarian cancer. Free Radic Biol Med 2024; 214:137-157. [PMID: 38364944 DOI: 10.1016/j.freeradbiomed.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 02/06/2024] [Indexed: 02/18/2024]
Abstract
The exploration of drugs derived from natural sources holds significant promise in addressing current limitations in ovarian cancer (OC) treatments. While previous studies have highlighted the remarkable anti-cancer properties of the natural compound β-sitosterol (SIT) across various tumors, its specific role in OC treatment remains unexplored. This study aims to investigate the anti-tumor activity of SIT in OC using in vitro and in vivo models, delineate potential mechanisms, and establish a preclinical theoretical foundation for future clinical trials, thus fostering further research. Utilizing network pharmacology, we pinpoint SIT as a promising candidate for OC treatment and predict its potential targets and pathways. Through a series of in vitro and in vivo experiments, we unveil a novel mechanism through which SIT mitigates the malignant biological behaviors of OC cells by modulating redox status. Specifically, SIT selectively targets argininosuccinate synthetase 1 (ASS1), a protein markedly overexpressed in OC tissues and cells. Inhibiting ASS1, SIT enhances the interaction between Nrf2 and Keap1, instigating the ubiquitin-dependent degradation of Nrf2, subsequently diminishing the transcriptional activation of downstream antioxidant genes HO-1 and NQO1. The interruption of the antioxidant program by SIT results in the substantial accumulation of reactive oxygen species (ROS) in OC cells. This, in turn, upregulates PTEN, exerting negative regulation on the phosphorylation activation of AKT. The suppression of AKT signaling disrupted downstream pathways associated with cell cycle, cell survival, apoptosis, migration, and invasion, ultimately culminating in the death of OC cells. Our research uncovers new targets and mechanisms of SIT against OC, contributing to the existing knowledge on the anti-tumor effects of natural products in the context of OC. Additionally, this research unveils a novel role of ASS1 in regulating the Nrf2-mediated antioxidant program and governing redox homeostasis in OC, providing a deeper understanding of this complex disease.
Collapse
Affiliation(s)
- Haoyu Wang
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| | - Jingchun Liu
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| | - Zihui Zhang
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| | - Jiaxin Peng
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| | - Zhi Wang
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| | - Lian Yang
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| | - Xinqi Wang
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| | - Siyuan Hu
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| | - Li Hong
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Jiefang Road NO.238, Wuhan, 430060, PR China.
| |
Collapse
|
3
|
Ma C, Liu K, Wang F, Fei X, Niu C, Li T, Liu L. Neutrophil membrane-engineered Panax ginseng root-derived exosomes loaded miRNA 182-5p targets NOX4/Drp-1/NLRP3 signal pathway to alleviate acute lung injury in sepsis: experimental studies. Int J Surg 2024; 110:72-86. [PMID: 37737899 PMCID: PMC10793765 DOI: 10.1097/js9.0000000000000789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/10/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND The purpose of this study was to prepare neutrophil membrane-engineered Panax ginseng root-derived exosomes (N-exo) and investigate the effects of N-exo microRNA (miRNA) 182-5p (N-exo-miRNA 182-5p) on acute lung injury (ALI) in sepsis. METHODS Panax ginseng root-derived exosomes were separated by differential centrifugation. Neutrophil membrane engineering was performed on exo to obtain N-exo. miRNA182-5p was transmitted into N-exo by electroporation technology to obtain N-exo-miRNA 182-5p. LPS was used to establish an in-vivo and in-vitro model of ALI of sepsis to evaluate the anti-inflammatory effect of N-exo-miRNA 182-5p. RESULTS The results of transmission electron microscope showed that exo was a double-layer membrane structure like a saucer. Nanoparticle size analysis showed that the average particle size of exo was 129.7 nm. Further, compared with exo, the level of miRNA182-5p was significantly increased in N-exo. The experimental results showed that N-exo-miRNA 182-5p significantly improved ALI via target regulation of NOX4/Drp-1/NLRP3 signal pathway in vivo and in vitro . CONCLUSION In conclusion, this study prepared a novel engineered exosome (N-exo and N-exo-miRNA 182-5p significantly improved ALI in sepsis via target regulation of NOX4/Drp-1/NLRP3 signal pathway, providing new ideas and methods for treatment of ALI in sepsis.
Collapse
Affiliation(s)
- Chunhua Ma
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Research Department of Army Medical Center, Army Medical University, Chongqing
| | - Kun Liu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Fei Wang
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Xiaochun Fei
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Chaochao Niu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Tao Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Research Department of Army Medical Center, Army Medical University, Chongqing
| | - Liangming Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Research Department of Army Medical Center, Army Medical University, Chongqing
| |
Collapse
|
4
|
Zeng HH, Ma M, Wang YL, Chen MH, Huang DB. Hyperoside attenuates carbon tetrachloride-induced hepatic fibrosis via the poly(ADP-ribose)polymerase-1-high mobility group protein 1 pathway. Eur J Pharmacol 2023; 960:176178. [PMID: 37923159 DOI: 10.1016/j.ejphar.2023.176178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/29/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
Oxidative stress and inflammation have been implicated in hepatic fibrosis. Antioxidant and anti-inflammatory activities are among the pharmacological effects of hyperoside. This study aimed to evaluate the impact of hyperoside on hepatic fibrosis and elucidate the underlying processes that perpetuate this relationship. The findings indicated that hyperoside significantly protects mouse livers against damage, inflammation, and fibrosis. Specifically, attenuation of hepatic fibrosis is associated with lower expression of HMGB1 protein and reduced expression of Toll-like receptor 4, PARP-1, and nuclear factor-kB (NF-κB) p65 mRNA and protein. Furthermore, hyperoside inhibited the cytoplasmic translocation of HMGB1 and nuclear localization of NF-κB p65 in the hepatic tissues of mice. The results of this study indicate that hyperoside may impose a blocking or reversing effect on hepatic fibrosis; additionally, the corresponding hyperoside-dependent mechanism may be linked to PARP-1-HMGB1 pathway regulation.
Collapse
Affiliation(s)
- H H Zeng
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - M Ma
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - Y L Wang
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - M H Chen
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - D B Huang
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| |
Collapse
|
5
|
Chen R, Zhang Y, Patel N, Wu K, Li M, Mo X, Yang Z. CARD9 mediated MAPK/NF-κB signal pathway participates in the pathophysiological process of septic hepatitis: The role of tiliroside. Int Immunopharmacol 2023; 124:110275. [PMID: 37741127 DOI: 10.1016/j.intimp.2023.110275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 04/18/2023] [Accepted: 04/30/2023] [Indexed: 09/25/2023]
Abstract
The purpose of the present study was to search for biomarker and effective treatment measures for septic hepatitis. Lipopolysaccharide (LPS) was used to establish septic hepatitis (SH) model in vivo and in vitro. Proteomics, immunoprecipitation, molecular docking techniques, and CARD9 knockout (KO) mice and silence Chang liver Cell(CLC) were used to search for biomarker and possible treatment targets and treatment measures for SH. 46 differentially expressed proteins were found in the liver tissues of sepsis mice, among which CARD9 changed most. CARD9 KO and silence significantly relieved sepsis induced SH in vivo and in vitro. Tiliroside (TIS), an effective component of Buddleja officinalis Maxim, significantly improved SH by regulating CARD9 mediated MAPK/NF-κB signal pathway. In conclusion, CARD9 may be the important molecular targets for SH. TIS could protect SH via CARD9 mediated MAPK/NF-κB signal pathway. The findings provide a new treatment target for SH and a potential treatment measure.
Collapse
Affiliation(s)
- Runsen Chen
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Yuxi Zhang
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Nishant Patel
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Kede Wu
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Manman Li
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210008, China
| | - Xuming Mo
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China.
| | - Zhaocong Yang
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China.
| |
Collapse
|
6
|
Zeng Z, Lan Y, Zhang L, Chen Y, Gong Y, Zuo F, Li J, Luo G, Peng Y, Yuan Z. The m6A reader YTHDF2 alleviates the inflammatory response by inhibiting IL-6R/JAK2/STAT1 pathway-mediated high-mobility group box-1 release. BURNS & TRAUMA 2023; 11:tkad023. [PMID: 38026444 PMCID: PMC10650363 DOI: 10.1093/burnst/tkad023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/05/2023] [Indexed: 12/01/2023]
Abstract
Background Sepsis is a common severe complication in major burn victims and is characterized by a dysregulated systemic response to inflammation. YTH domain family 2 (YTHDF2), a well-studied N6-methyladenosine (m6A) reader that specifically recognizes and binds to m6A-modified transcripts to mediate their degradation, is connected to pathogenic and physiological processes in eukaryotes, but its effect on sepsis is still unknown. We aimed to discover the effects and mechanisms of YTHDF2 in sepsis. Methods Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and western blot analyses were used to measure the expression of YTHDF2, the interleukin 6 receptor (IL-6R), high-mobility group box-1 (HMGB1), Janus kinase 2 (JAK2) and signal transducer and activator of transcription 1 (STAT1) under different in vitro conditions. Enzyme-linked immunosorbent assays were utilized to evaluate the expression of HMGB1, IL-6, IL-1β and tumor necrosis factor-α. To confirm that YTHDF2 specifically targets IL-6R mRNA, RNA immunoprecipitation and dual-luciferase reporter assays were performed. Finally, we utilized a mouse model of lipopolysaccharide (LPS)-induced sepsis to verify the effects of YTHDF2 in vivo. Results According to our findings, YTHDF2 was expressed at a low level in peripheral blood mononuclear cells from septic mice and patients as well as in LPS-induced RAW264.7 cells. Overexpression of YTHDF2 alleviated the inflammatory response by inhibiting HMGB1 release and JAK2/STAT1 signalling in LPS-stimulated cells. Mechanistically, YTHDF2 suppressed JAK2/STAT1 signalling by directly recognizing the m6A-modified site in IL-6R and decreasing the stability of IL-6R mRNA, thereby inhibiting HMGB1 release. In vivo experiments showed that YTHDF2 played a protective role in septic mice by suppressing the IL-6R/JAK2/STAT1/HMGB1 axis. Conclusions In summary, these findings demonstrate that YTHDF2 plays an essential role as an inhibitor of inflammation to reduce the release of HMGB1 by inhibiting the IL-6R/JAK2/STAT1 pathway, indicating that YTHDF2 is a novel target for therapeutic interventions in sepsis.
Collapse
Affiliation(s)
- Zhuo Zeng
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yingying Lan
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Lijuan Zhang
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yu Chen
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yali Gong
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Fangqing Zuo
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Junda Li
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Gaoxing Luo
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yizhi Peng
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Zhiqiang Yuan
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| |
Collapse
|
7
|
Na AY, Choi SY, Paudel S, Bae JS, Tan M, Lee S. Integrative Profiling of Lysine Acylome in Sepsis-Induced Liver Injury. J Proteome Res 2023; 22:2860-2870. [PMID: 37523266 DOI: 10.1021/acs.jproteome.3c00130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Sepsis is one of the life-threatening diseases worldwide. Despite the continuous progress in medicine, the specific mechanism of sepsis remains unclear. A key strategy of pathogens is to use post-translational modification to modulate host factors critical for infection. We employed global immunoprecipitation technology for lysine acetylation (Kac), succinylation (Ksu), and malonylation (Kmal) for the first global lysine acylation (Kacy) analysis in a cecum ligation and puncture (CLP) model in mouse. This was performed to reveal the pathogenic mechanism of integrative Kacy and the changes in modification sites. In total, 2230 sites of 1,235 Kac proteins, 1,887 sites of 433 Ksu proteins, and 499 sites of 276 Kmal proteins were quantified and normalized by their protein levels. We focused on 379 sites in 219 upregulated proteins as the integrative Kacy sites of Kac, Ksu, and Kmal on the basis of sirtuins decreased in the CLP group. KEGG pathway analysis of integrative Kacy in 219 upregulated proteins revealed three central metabolic pathways: glycolysis/gluconeogenesis, pyruvate metabolism, and tricarboxylic acid cycle. These findings reveal the key pathogenic mechanism of integrative PTM alteration in terms of the decreased sirtuins level and provide an important foundation for an in-depth study of the biological function of Kacy in sepsis.
Collapse
Affiliation(s)
- Ann-Yae Na
- Global Drug Development Research Institute, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - So Young Choi
- Mass Spectrometry Convergence Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sanjita Paudel
- College of Pharmacy, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jong-Sup Bae
- College of Pharmacy, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Minjia Tan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Sangkyu Lee
- Global Drug Development Research Institute, Sungkyunkwan University, Suwon 16419, Republic of Korea
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| |
Collapse
|
8
|
Abdallah DM, Kamal MM, Aly NES, El-Abhar HS. Anandamide modulates WNT-5A/BCL-2, IP3/NFATc1, and HMGB1/NF-κB trajectories to protect against mercuric chloride-induced acute kidney injury. Sci Rep 2023; 13:11899. [PMID: 37488162 PMCID: PMC10366223 DOI: 10.1038/s41598-023-38659-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 07/12/2023] [Indexed: 07/26/2023] Open
Abstract
Endocannabinoid anandamide (AEA) has a physiological role in regulating renal blood flow, whereas its analogs ameliorated renal ischemia/reperfusion injury. Nonetheless, the role of AEA against mercuric chloride (HgCl2)-induced renal toxicity has not been unraveled. Rats were allocated into control, HgCl2, and HgCl2/AEA treated groups. The administration of AEA quelled the HgCl2-mediated increase in inositol trisphosphate (IP3) and nuclear factor of activated T-cells cytoplasmic 1 (NFATc1). The endocannabinoid also signified its anti-inflammatory potential by turning off the inflammatory cascade evidenced by the suppression of high mobility group box protein-1 (HMGB1), receptor of glycated end products (RAGE), nuclear factor-κB p65 (NF-κB), and unexpectedly PPAR-γ. Additionally, the aptitude of AEA to inhibit malondialdehyde and boost glutathione points to its antioxidant capacity. Moreover, AEA by enhancing the depleted renal WNT-5A and reducing cystatin-C and KIM-1 (two kidney function parameters) partly verified its anti-apoptotic capacity, confirmed by inhibiting caspase-3 and increasing B-cell lymphoma-2 (BCL-2). The beneficial effect of AEA was mirrored by the improved architecture and kidney function evidenced by the reduction in cystatin-C, KIM-1, creatinine, BUN, and caspase1-induced activated IL-18. In conclusion, our results verify the reno-protective potential of AEA against HgCl2-induced kidney injury by its anti-inflammatory, antioxidant, and anti-apoptotic capacities by modulating WNT-5A/BCL-2, IP3/NFATC1, HMGB-1/RAGE/NF-κB, caspase-1/IL-18, and caspase-3/BCL-2 cues.
Collapse
Affiliation(s)
- Dalaal M Abdallah
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt.
| | - Mahmoud M Kamal
- Research Institute of Medical Entomology, General Organization for Teaching Hospitals and Institutes, Cairo, Egypt
| | - Nour Eldin S Aly
- Research Institute of Medical Entomology, General Organization for Teaching Hospitals and Institutes, Cairo, Egypt
| | - Hanan S El-Abhar
- Department of Pharmacology, Toxicology, and Biochemistry, Faculty of Pharmacy, Future University in Egypt (FUE), Cairo, 11835, Egypt
| |
Collapse
|
9
|
Ye J, Huang Y, Jiang X, Shen P, Zhang C, Zhang J. Research on the interaction of astragaloside IV and calycosin in Astragalus membranaceus with HMGB1. Chin Med 2023; 18:81. [PMID: 37403077 DOI: 10.1186/s13020-023-00789-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/24/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND High mobility group box 1 protein (HMGB1), a lethal late inflammatory mediator, contributes to the pathogenesis of diverse inflammatory and infectious diseases. Astragaloside IV and calycosin as active ingredients in Astragalus membranaceus, possess potent regulatory ability on HMGB1-induced inflammation, however, the interaction between these two phytochemicals and HMGB1 has not been elucidated yet. METHODS To further investigate the interaction of astragaloside IV, calycosin with HMGB1 protein, surface plasma resonance (SPR) and a series of spectroscopic methods, including UV spectra, fluorescence spectroscopy, circular dichroism (CD), were used. Molecular docking was also carried out to predict the atomic level's binding modes between two components and HMGB1. RESULTS Astragaloside IV and calycosin were found to be able to bind HMGB1 directly and affect the secondary structure and environment of the chromogenic amino acids of HMGB1 to different extents. In silico, astragaloside IV and calycosin showed a synergistic effect by binding to the two independent domains B-box and A-box in HMGB1, respectively, where hydrogen and hydrophobicity bonds were regarded as the crucial forces. CONCLUSION These findings showed that the interaction of astragaloside IV and calycosin with HMGB1 impaired its proinflammatory cytokines function, providing a new perspective for understanding the mechanism of A. membranaceus in treating aseptic and infectious diseases.
Collapse
Affiliation(s)
- Junyi Ye
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Yong Huang
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Xuewa Jiang
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Pingping Shen
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Chaofeng Zhang
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Jian Zhang
- Department of Resources Science of Traditional Chinese Medicines and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China.
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, 211198, People's Republic of China.
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24# St. Tong Jia Xiang, Nanjing, 210009, China.
| |
Collapse
|
10
|
Fu Y, Xiang Y, Wang Y, Liu Z, Yang D, Zha J, Tang C, Cai J, Chen G, Dong Z. The STAT1/HMGB1/NF-κB pathway in chronic inflammation and kidney injury after cisplatin exposure. Theranostics 2023; 13:2757-2773. [PMID: 37284446 PMCID: PMC10240827 DOI: 10.7150/thno.81406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/26/2023] [Indexed: 06/08/2023] Open
Abstract
Rationale: Cisplatin, a potent chemotherapeutic drug, induces side effects in normal tissues including the kidney. To reduce the side effects, repeated low-dose cisplatin (RLDC) is commonly used in clinical setting. While RLDC reduces acute nephrotoxicity to certain extents, a significant portion of patients later develop chronic kidney problems, underscoring the need for novel therapeutics to alleviate the long-term sequelae of RLDC therapy. Methods: In vivo, the role of HMGB1 was examined by testing HMGB1 neutralizing antibodies in RLDC mice. In vitro, the effects of HMGB1 knockdown on RLDC-induced nuclear factor-κB (NF-κB) activation and fibrotic phenotype changes were tested in proximal tubular cells. To study signal transducer and activator of transcription 1 (STAT1), siRNA knockdown and its pharmacological inhibitor Fludarabine were used. We also searched the Gene Expression Omnibus (GEO) database for transcriptional expression profiles and evaluated kidney biopsy samples from CKD patients to verify the STAT1/HMGB1/NF-κB signaling axis. Results: We found that RLDC induced kidney tubule damage, interstitial inflammation, and fibrosis in mice, accompanied by up-regulation of HMGB1. Blockage of HMGB1with neutralizing antibodies and Glycyrrhizin suppressed NF-κB activation and associated production of pro-inflammatory cytokines, reduced tubular injury and renal fibrosis, and improved renal function after RLDC treatment. Consistently, knockdown of HMGB1 decreased NF-κB activation and prevented the fibrotic phenotype in RLDC-treated renal tubular cells. At the upstream, knockdown of STAT1 suppressed HMGB1 transcription and cytoplasmic accumulation in renal tubular cells, suggesting a critical role of STAT1 in HMGB1 activation. Upregulation of STAT1/HMGB1/NF-κB along with inflammatory cytokines was also verified in kidney tissues of CKD patients. Conclusion: These results unravel the STAT1/HMGB1/NF-κB pathway that contributes to persistent inflammation and chronic kidney problems after cisplatin nephrotoxicity, suggesting new therapeutic targets for kidney protection in cancer patients receiving cisplatin chemotherapy.
Collapse
Affiliation(s)
- Ying Fu
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Yu Xiang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Ying Wang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Zhiwen Liu
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Danyi Yang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Jie Zha
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Chengyuan Tang
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Juan Cai
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Guochun Chen
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Zheng Dong
- Department of Nephrology, Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha 410011, China
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA
| |
Collapse
|
11
|
Wang J, Li W, Zhao F, Han Q, Shan L, Qian Y. Sirt3 regulates NLRP3 and participates in the effects of plantainoside D on acute lung injury sepsis. Aging (Albany NY) 2023; 15:6710-6720. [PMID: 37494665 PMCID: PMC10415545 DOI: 10.18632/aging.204628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 03/06/2023] [Indexed: 07/28/2023]
Abstract
Sepsis, a common critical disease, has high morbidity and mortality. Acute lung injury (ALI) is one of the important complications of sepsis, its effective treatment measures remain scarce. The purpose of the present study was to search for the biomarker and effective treatment measures. Lipopolysaccharide (LPS) was used to establish sepsis induced ALI model in vivo and in vitro. Proteomics, immunoprecipitation, molecular docking techniques, and Sirt3 knockout (KO) mice and silence MLE-12 cells were used to search for biomarker and treatment measures for sepsis ALI. 38 differentially expressed proteins were found in the lung tissues of sepsis ALI mice, among which Sirt3 changed most. Further study found that Sirt3 could inhibit NLRP3 activation. Sirt3 KO or silence significantly aggravated sepsis induced ALI and MLE-12 cell injury. Plantainoside D (PD), an effective component of Plantago asiatica L., significantly improved sepsis induced ALI by regulation of Sirt3/NLRP3 pathway. In conclusion, Sirt3 may be the important molecular targets for sepsis ALI. PD could protect sepsis ALI via Sirt3/NLRP3 signal pathway. The findings provide a new treatment target for sepsis ALI and a potential treatment measure.
Collapse
Affiliation(s)
- Jing Wang
- School of Biology and Food Engineering, Institute of Pharmaceutical Pharmacology Research Center, Suzhou University, Suzhou, Anhui, China
| | - Wanrong Li
- School of Biology and Food Engineering, Institute of Pharmaceutical Pharmacology Research Center, Suzhou University, Suzhou, Anhui, China
| | - Fang Zhao
- School of Biology and Food Engineering, Institute of Pharmaceutical Pharmacology Research Center, Suzhou University, Suzhou, Anhui, China
| | - Qianqian Han
- School of Biology and Food Engineering, Institute of Pharmaceutical Pharmacology Research Center, Suzhou University, Suzhou, Anhui, China
| | - Lingling Shan
- School of Biology and Food Engineering, Institute of Pharmaceutical Pharmacology Research Center, Suzhou University, Suzhou, Anhui, China
| | - Yumei Qian
- School of Biology and Food Engineering, Institute of Pharmaceutical Pharmacology Research Center, Suzhou University, Suzhou, Anhui, China
| |
Collapse
|
12
|
Han YC, Shen ZJ, Wang YN, Xiang RL, Xie HZ. LncRNA-mRNA expression profile and functional network of vascular dysfunction in septic rats. Eur J Med Res 2023; 28:11. [PMID: 36611198 PMCID: PMC9824925 DOI: 10.1186/s40001-022-00961-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 12/19/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND We used microarrays to analyse the changes in long non-coding RNAs (lncRNAs) and mRNAs in aorta tissue in model rats with lipopolysaccharide-induced sepsis and determined the lncRNA-mRNA and lncRNA-miRNA-mRNA functional networks. METHODS Wistar rats were intraperitoneally injected with lipopolysaccharide, and the lncRNA and mRNA expression profiles in the aorta were evaluated using microarrays. The functions of the differentially expressed mRNAs were analysed using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses. We then constructed coding/non-coding co-expression and competing endogenous RNA networks to study the mechanisms related to sepsis in rats. RESULTS We identified 503 differentially expressed lncRNAs and 2479 differentially expressed mRNAs in the model rats with lipopolysaccharide-induced sepsis. Mitochondrial fission process 1 (MTFP1) was the most significantly down-regulated mRNA. Bioinformatics analysis showed that the significantly down-regulated mRNAs in the sepsis models were in pathways related to mitochondrial structure, function, and energy metabolism. Coding/non-coding co-expression and competing endogenous RNA analyses were conducted using 12 validated lncRNAs in combination with all mRNAs. The coding/non-coding co-expression analysis showed that the 12 validated lncRNAs were mainly regulatory factors for abnormal energy metabolism, including mitochondrial structure damage and aberrant mitochondrial dynamics. The competing endogenous RNA analysis revealed that the potential functions of these 12 lncRNAs might be related to the inflammatory response. CONCLUSION We determined the differentially expressed lncRNAs and mRNAs in the aorta of septic rats using microarrays. Further studies on these lncRNAs will help elucidate the mechanism of sepsis at the genetic level and may identify potential therapeutic targets.
Collapse
Affiliation(s)
- Ye-Chen Han
- grid.413106.10000 0000 9889 6335Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730 China
| | - Zhu-Jun Shen
- grid.413106.10000 0000 9889 6335Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730 China
| | - Yi-Ning Wang
- grid.413106.10000 0000 9889 6335Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730 China
| | - Ruo-Lan Xiang
- grid.11135.370000 0001 2256 9319Department of Physiology and Pathophysiology, Peking University School of Basic Medical Sciences, Beijing, 100191 China
| | - Hong-Zhi Xie
- grid.413106.10000 0000 9889 6335Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan, Dongcheng District, Beijing, 100730 China
| |
Collapse
|
13
|
Pirnie R, P Gillespie K, Mesaros C, Blair IA. Reappraisal of oxidized HMGB1 as a mediator and biomarker. Future Sci OA 2022; 8:FSO828. [PMID: 36874369 PMCID: PMC9979160 DOI: 10.2144/fsoa-2022-0052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 01/12/2023] [Indexed: 02/12/2023] Open
Abstract
HMGB1 is a dual-function protein that acts as a chromatin-binding protein and as a danger-associated molecular pattern (DAMP) when released from activated immune cells or injured tissue. In much of the HMGB1 literature, immunomodulatory effects of extracellular HMGB1 are proposed to depend on its oxidation state. However, many of the foundational studies for this model have been retracted or flagged with expressions of concern. The literature on HMGB1 oxidation reveals a diversity of redox proteoforms of HMGB1 that are inconsistent with current models of redox modulation regulating HMGB1 secretion. A recent study of acetaminophen toxicity has identified previously unrecognized HMGB1 oxidized proteoforms. HMGB1 undergoes oxidative modifications that could serve as pathology-specific biomarkers and drug targets.
Collapse
Affiliation(s)
- Ross Pirnie
- Center of Excellence in Environmental Toxicology & Department of Systems Pharmacology & Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kevin P Gillespie
- Center of Excellence in Environmental Toxicology & Department of Systems Pharmacology & Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Clementina Mesaros
- Center of Excellence in Environmental Toxicology & Department of Systems Pharmacology & Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ian A Blair
- Center of Excellence in Environmental Toxicology & Department of Systems Pharmacology & Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA
| |
Collapse
|
14
|
Changing Perspectives from Oxidative Stress to Redox Signaling-Extracellular Redox Control in Translational Medicine. Antioxidants (Basel) 2022; 11:antiox11061181. [PMID: 35740078 PMCID: PMC9228063 DOI: 10.3390/antiox11061181] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 12/07/2022] Open
Abstract
Extensive research has changed the understanding of oxidative stress that has been linked to every major disease. Today we distinguish oxidative eu- and distress, acknowledging that redox modifications are crucial for signal transduction in the form of specific thiol switches. Long underestimated, reactive species and redox proteins of the Thioredoxin (Trx) family are indeed essential for physiological processes. Moreover, extracellular redox proteins, low molecular weight thiols and thiol switches affect signal transduction and cell–cell communication. Here, we highlight the impact of extracellular redox regulation for health, intermediate pathophenotypes and disease. Of note, recent advances allow the analysis of redox changes in body fluids without using invasive and expensive techniques. With this new knowledge in redox biochemistry, translational strategies can lead to innovative new preventive and diagnostic tools and treatments in life sciences and medicine.
Collapse
|
15
|
Luo P, Zhang Q, Zhong TY, Chen JY, Zhang JZ, Tian Y, Zheng LH, Yang F, Dai LY, Zou C, Li ZJ, Liu JH, Wang JG. Celastrol mitigates inflammation in sepsis by inhibiting the PKM2-dependent Warburg effect. Mil Med Res 2022; 9:22. [PMID: 35596191 PMCID: PMC9121578 DOI: 10.1186/s40779-022-00381-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 04/12/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Sepsis involves life-threatening organ dysfunction and is caused by a dysregulated host response to infection. No specific therapies against sepsis have been reported. Celastrol (Cel) is a natural anti-inflammatory compound that shows potential against systemic inflammatory diseases. This study aimed to investigate the pharmacological activity and molecular mechanism of Cel in models of endotoxemia and sepsis. METHODS We evaluated the anti-inflammatory efficacy of Cel against endotoxemia and sepsis in mice and macrophage cultures treated with lipopolysaccharide (LPS). We screened for potential protein targets of Cel using activity-based protein profiling (ABPP). Potential targets were validated using biophysical methods such as cellular thermal shift assays (CETSA) and surface plasmon resonance (SPR). Residues involved in Cel binding to target proteins were identified through point mutagenesis, and the functional effects of such binding were explored through gene knockdown. RESULTS Cel protected mice from lethal endotoxemia and improved their survival with sepsis, and it significantly decreased the levels of pro-inflammatory cytokines in mice and macrophages treated with LPS (P < 0.05). Cel bound to Cys424 of pyruvate kinase M2 (PKM2), inhibiting the enzyme and thereby suppressing aerobic glycolysis (Warburg effect). Cel also bound to Cys106 in high mobility group box 1 (HMGB1) protein, reducing the secretion of inflammatory cytokine interleukin (IL)-1β. Cel bound to the Cys residues in lactate dehydrogenase A (LDHA). CONCLUSION Cel inhibits inflammation and the Warburg effect in sepsis via targeting PKM2 and HMGB1 protein.
Collapse
Affiliation(s)
- Piao Luo
- Artemisinin Research Center, and Institute of Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qian Zhang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Tian-Yu Zhong
- Laboratory Medicine, the First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - Jia-Yun Chen
- Artemisinin Research Center, and Institute of Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jun-Zhe Zhang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ya Tian
- Artemisinin Research Center, and Institute of Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Liu-Hai Zheng
- Department of Geriatric Medicine, Shenzhen People's Hospital, the Second Clinical Medical College, Jinan University and the First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China
| | - Fan Yang
- Department of Geriatric Medicine, Shenzhen People's Hospital, the Second Clinical Medical College, Jinan University and the First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China
| | - Ling-Yun Dai
- Department of Geriatric Medicine, Shenzhen People's Hospital, the Second Clinical Medical College, Jinan University and the First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China
| | - Chang Zou
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhi-Jie Li
- Department of Geriatric Medicine, Shenzhen People's Hospital, the Second Clinical Medical College, Jinan University and the First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China.
| | - Jing-Hua Liu
- Guangdong Provincial Key Laboratory of Proteomics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Ji-Gang Wang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing, 100700, China. .,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China. .,Laboratory Medicine, the First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China. .,Department of Geriatric Medicine, Shenzhen People's Hospital, the Second Clinical Medical College, Jinan University and the First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China. .,Center for Reproductive Medicine, Dongguan Maternal and Child Health Care Hospital, Southern Medical University, Dongguan, 523125, Guangdong, China. .,Central People's Hospital of Zhanjiang, Zhanjiang, 524037, Guangdong, China.
| |
Collapse
|
16
|
Maysinger D, Sanader Maršić Ž, Gran ER, Shobo A, Macairan JR, Zhang I, Perić Bakulić M, Antoine R, Multhaup G, Bonačić-Kouteckỳ V. Insights into the Impact of Gold Nanoclusters Au 10SG 10 on Human Microglia. ACS Chem Neurosci 2022; 13:464-476. [PMID: 35080850 DOI: 10.1021/acschemneuro.1c00621] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The purpose of the current study is to uncover the impact of small liganded gold nanoclusters with 10 gold atoms and 10 glutathione ligands (Au10SG10) on several biomarkers in human microglia. We established the links connecting the atomically precise structure of Au10SG10 with their properties and changes in several biomolecules under oxidative stress. Au10SG10 caused the loss of mitochondrial metabolic activity, increased lipid peroxidation and translocation of an alarmin molecule, high mobility group box 1 (HMGB1), from the nucleus to the cytosol. Molecular modeling provided an insight into the location of amino acid interaction sites with Au10SG10 and the nature of bonds participating in these interactions. We show that Au10SG10 can bind directly to the defined sites of reduced, oxidized, and acetylated HMGB1. Further studies with similar complementary approaches merging live-cell analyses, determination of biomarkers, and cell functions could lead to optimized gold nanoclusters best suited for diagnostic and bioimaging purposes in neuroscience.
Collapse
Affiliation(s)
- Dusica Maysinger
- Department of Pharmacology & Therapeutics, McGill University, H3G 1Y6 Montréal, Canada
- Interdisciplinary Center for Advanced Science and Technology (ICAST) at University of Split, Meštrovićevo šetalište 45, 21000 Split, Croatia
| | - Željka Sanader Maršić
- Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Republic of Croatia
- Interdisciplinary Center for Advanced Science and Technology (ICAST) at University of Split, Meštrovićevo šetalište 45, 21000 Split, Croatia
| | - Evan Rizzel Gran
- Department of Pharmacology & Therapeutics, McGill University, H3G 1Y6 Montréal, Canada
| | - Adeola Shobo
- Department of Pharmacology & Therapeutics, McGill University, H3G 1Y6 Montréal, Canada
| | - Jun-Ray Macairan
- Department of Chemical Engineering, McGill University, H3A 0C5 Montréal, Canada
| | - Issan Zhang
- Department of Pharmacology & Therapeutics, McGill University, H3G 1Y6 Montréal, Canada
| | - Martina Perić Bakulić
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia
- Interdisciplinary Center for Advanced Science and Technology (ICAST) at University of Split, Meštrovićevo šetalište 45, 21000 Split, Croatia
| | - Rodolphe Antoine
- Institut Lumière Matière UMR 5306, Université Claude Bernard Lyon 1, CNRS, Univ Lyon, F-69100 Villeurbanne, France
| | - Gerhard Multhaup
- Department of Pharmacology & Therapeutics, McGill University, H3G 1Y6 Montréal, Canada
| | - Vlasta Bonačić-Kouteckỳ
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia
- Interdisciplinary Center for Advanced Science and Technology (ICAST) at University of Split, Meštrovićevo šetalište 45, 21000 Split, Croatia
- Chemistry Department, Humboldt University of Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
| |
Collapse
|
17
|
Wu Q, Yin CH, Li Y, Cai JQ, Yang HY, Huang YY, Zheng YX, Xiong K, Yu HL, Lu AP, Wang KX, Guan DG, Chen YP. Detecting Critical Functional Ingredients Group and Mechanism of Xuebijing Injection in Treating Sepsis. Front Pharmacol 2021; 12:769190. [PMID: 34938184 PMCID: PMC8687625 DOI: 10.3389/fphar.2021.769190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/04/2021] [Indexed: 11/13/2022] Open
Abstract
Sepsis is a systemic inflammatory reaction caused by various infectious or noninfectious factors, which can lead to shock, multiple organ dysfunction syndrome, and death. It is one of the common complications and a main cause of death in critically ill patients. At present, the treatments of sepsis are mainly focused on the controlling of inflammatory response and reduction of various organ function damage, including anti-infection, hormones, mechanical ventilation, nutritional support, and traditional Chinese medicine (TCM). Among them, Xuebijing injection (XBJI) is an important derivative of TCM, which is widely used in clinical research. However, the molecular mechanism of XBJI on sepsis is still not clear. The mechanism of treatment of "bacteria, poison and inflammation" and the effects of multi-ingredient, multi-target, and multi-pathway have still not been clarified. For solving this issue, we designed a new systems pharmacology strategy which combines target genes of XBJI and the pathogenetic genes of sepsis to construct functional response space (FRS). The key response proteins in the FRS were determined by using a novel node importance calculation method and were condensed by a dynamic programming strategy to conduct the critical functional ingredients group (CFIG). The results showed that enriched pathways of key response proteins selected from FRS could cover 95.83% of the enriched pathways of reference targets, which were defined as the intersections of ingredient targets and pathogenetic genes. The targets of the optimized CFIG with 60 ingredients could be enriched into 182 pathways which covered 81.58% of 152 pathways of 1,606 pathogenetic genes. The prediction of CFIG targets showed that the CFIG of XBJI could affect sepsis synergistically through genes such as TAK1, TNF-α, IL-1β, and MEK1 in the pathways of MAPK, NF-κB, PI3K-AKT, Toll-like receptor, and tumor necrosis factor signaling. Finally, the effects of apigenin, baicalein, and luteolin were evaluated by in vitro experiments and were proved to be effective in reducing the production of intracellular reactive oxygen species in lipopolysaccharide-stimulated RAW264.7 cells, significantly. These results indicate that the novel integrative model can promote reliability and accuracy on depicting the CFIGs in XBJI and figure out a methodological coordinate for simplicity, mechanism analysis, and secondary development of formulas in TCM.
Collapse
Affiliation(s)
- Qi- Wu
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chuan-Hui Yin
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| | - Yi Li
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jie-Qi Cai
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| | - Han-Yun Yang
- The First Clinical Medical College of Southern Medical University, Guangzhou, China
| | - Ying-Ying Huang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yi-Xu Zheng
- Department of Ophthalmology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ke Xiong
- Department of Ophthalmology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hai-Lang Yu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| | - Ai-Ping Lu
- Institute of Integrated Bioinformedicine and Translational Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong China
| | - Ke-Xin Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,National Key Clinical Specialty/Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Neurosurgery Institute, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Dao-Gang Guan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| | - Yu-Peng Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Province Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China
| |
Collapse
|
18
|
Miao H, Chen S, Ding R. Evaluation of the Molecular Mechanisms of Sepsis Using Proteomics. Front Immunol 2021; 12:733537. [PMID: 34745104 PMCID: PMC8566982 DOI: 10.3389/fimmu.2021.733537] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 10/08/2021] [Indexed: 12/12/2022] Open
Abstract
Sepsis is a complex syndrome promoted by pathogenic and host factors; it is characterized by dysregulated host responses and multiple organ dysfunction, which can lead to death. However, its underlying molecular mechanisms remain unknown. Proteomics, as a biotechnology research area in the post-genomic era, paves the way for large-scale protein characterization. With the rapid development of proteomics technology, various approaches can be used to monitor proteome changes and identify differentially expressed proteins in sepsis, which may help to understand the pathophysiological process of sepsis. Although previous reports have summarized proteomics-related data on the diagnosis of sepsis and sepsis-related biomarkers, the present review aims to comprehensively summarize the available literature concerning “sepsis”, “proteomics”, “cecal ligation and puncture”, “lipopolysaccharide”, and “post-translational modifications” in relation to proteomics research to provide novel insights into the molecular mechanisms of sepsis.
Collapse
Affiliation(s)
- He Miao
- Department of Intensive Care Unit, The First Hospital of China Medical University, Shenyang, China
| | - Song Chen
- Department of Trauma Intensive Care Unit, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China
| | - Renyu Ding
- Department of Intensive Care Unit, The First Hospital of China Medical University, Shenyang, China
| |
Collapse
|
19
|
Tong Y, Bao C, Xu YQ, Tao L, Zhou Y, Zhuang L, Meng Y, Zhang H, Xue J, Wang W, Zhang L, Pan Q, Shao Z, Hu T, Guo Q, Xue Q, Lu H, Luo Y. The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury. J Inflamm Res 2021; 14:5079-5094. [PMID: 34675589 PMCID: PMC8502060 DOI: 10.2147/jir.s331939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/23/2021] [Indexed: 12/12/2022] Open
Abstract
Background Acute lung injury (ALI) is a severe respiratory disease with high rates of morbidity and mortality. Many mediators regarding endogenous or exogenous are involved in the pathophysiology of ALI. Here, we have uncovered the involvement of integrins and matrix metalloproteinases, as critical determinants of excessive inflammation and endothelial permeability, in the regulation of ALI. Methods Inflammatory cytokines were measured by quantitative real-time PCR for mRNA levels and ELISA for secretion levels. Endothelial permeability assay was detected by the passage of rhodamine B isothiocyanate-dextran. Mice lung permeability was assayed by Evans blue albumin (EBA). Western blot was used for protein level measurements. The intracellular reactive oxygen species (ROS) were evaluated using a cell-permeable probe, DCFH-DA. Intratracheal injection of lipopolysaccharide (LPS) into mice was conducted to establish the lung injury model. Results Exogenous MMP-9 significantly aggravated the inflammatory response and permeability in mouse pulmonary microvascular endothelial cells (PMVECs) treated by LPS, whereas knockdown of MMP-9 exhibited the opposite phenotypes. Knockdown of integrin β3 or β5 in LPS-treated PMVECs significantly downregulated MMP-9 expression and decreased inflammatory response and permeability in the presence or absence of exogenous MMP-9. Additionally, the interaction of MMP-9 and integrin β5 was impaired by a ROS scavenger, which further decreased the pro-inflammatory cytokines production and endothelial leakage in PMVECs subjected to co-treatment (LPS with exogenous MMP-9). In vivo studies, exogenous MMP-9 treatment or knockdown β3 integrin significantly decreased survival in ALI mice. Notably, knockdown of β5 integrin alone had no remarkable effect on survival, but which combined with anti-MMP-9 treatment significantly improved the survival by ameliorating excessive lung inflammation and permeability in ALI mice. Conclusion These findings support the β3/5 integrin-MMP-9 axis as an endogenous signal that could play a pivotal role in regulating inflammatory response and alveolar-capillary permeability in ALI.
Collapse
Affiliation(s)
- Yao Tong
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Chengrong Bao
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yi-Qiong Xu
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Lei Tao
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yao Zhou
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Lei Zhuang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Ying Meng
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Hui Zhang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Jingjing Xue
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Weijun Wang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Lele Zhang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Qingbo Pan
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Zhenzhen Shao
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Tianran Hu
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Qian Guo
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Qingsheng Xue
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Han Lu
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yan Luo
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| |
Collapse
|
20
|
Pan J, Alexan B, Dennis D, Bettina C, Christoph LIM, Tang Y. microRNA-193-3p attenuates myocardial injury of mice with sepsis via STAT3/HMGB1 axis. J Transl Med 2021; 19:386. [PMID: 34503521 PMCID: PMC8428118 DOI: 10.1186/s12967-021-03022-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 08/04/2021] [Indexed: 12/16/2022] Open
Abstract
Objective Little is known regarding the functional role of microRNA-193-3p (miR-193-3p) in sepsis. Hence, the aim of the present study was to investigate the effect of miR-193-3p on myocardial injury in mice with sepsis and its mechanism through the regulation of signal transducers and activators of transcription 3 (STAT3). Methods The mice model of sepsis was established by cecal ligation and puncture (CLP), septic mice were injected with miR-193-3p agomir, miR-193-3p antagomir or siRNA-STAT3. The expression of miR-193-3p, STAT3 and HMGB1 in the myocardial tissue of septic mice were detected. Cardiac ultrasound, hemodynamics, myocardial injury markers, inflammatory factors and cardiomyocyte apoptosis in septic mice were measured. Results MiR-193-3p expression was reduced while STAT3 expression was increased in septic mice. Down-regulated STAT3 or up-regulated miR-193-3p improved cardiac function, attenuated myocardial injury, inflammation and cardiomyocyte apoptosis in septic mice. Knockdown STAT3 reversed the role of inhibited miR-193-3p for mice with sepsis. miR-193-3p targeted STAT3, thereby inhibiting HMGB1 expression. Conclusion This study provides evidence that miR-193-3p targets STAT3 expression to reduce HMGB1 expression, thereby reducing septic myocardial damage. MiR-193-3p might be a potential candidate marker and therapeutic target for sepsis. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-03022-x.
Collapse
Affiliation(s)
- Jianyuan Pan
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 230001, Anhui, China.,Institute of Experimental Cardiology, Internal Medicine VIII, Heidelberg University, Heidelberg, Germany
| | - Buse Alexan
- Institute of Experimental Cardiology, Internal Medicine VIII, Heidelberg University, Heidelberg, Germany
| | - Dorn Dennis
- Institute of Experimental Cardiology, Internal Medicine VIII, Heidelberg University, Heidelberg, Germany.,Anatomy and Developmental Biology, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Chiristine Bettina
- Institute of Experimental Cardiology, Internal Medicine VIII, Heidelberg University, Heidelberg, Germany.,Anatomy and Developmental Biology, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Laeuf Ilona Mariya Christoph
- Anatomy and Developmental Biology, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Yongqin Tang
- Anatomy and Developmental Biology, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany. .,Department of General surgery, Chuzhou Hospital affiliated to Anhui Medical University, 230001, Anhui, China.
| |
Collapse
|
21
|
Qiu Y, Yu Y, Qin XM, Jiang T, Tan YF, Ouyang WX, Xiao ZH, Li SJ. CircTLK1 modulates sepsis-induced cardiomyocyte apoptosis via enhancing PARP1/HMGB1 axis-mediated mitochondrial DNA damage by sponging miR-17-5p. J Cell Mol Med 2021; 25:8244-8260. [PMID: 34410682 PMCID: PMC8419196 DOI: 10.1111/jcmm.16738] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 05/10/2021] [Accepted: 06/05/2021] [Indexed: 02/06/2023] Open
Abstract
Introduction Septic cardiomyopathy is a common complication of sepsis with high morbidity and mortality, but lacks specific therapy. This study aimed to reveal the role of circTLK1 and its potential mechanisms in septic cardiomyopathy. Materials and Methods The in vitro and in vivo models of septic cardiomyopathy were established. Cell viability and apoptosis were detected by CCK8, TUNEL and flow cytometry, respectively. LDH, CK, SOD, MDA, ATP, 8‐OHdG, NAD+/NADH ratio, ROS level, mitochondrial membrane potential and cytochrome C distribution were evaluated using commercial kits. qRT‐PCR and western blotting were performed to detect RNA and protein levels. Mitochondrial DNA (mtDNA) copy number and transcription were assessed by quantitative PCR. Dual‐luciferase assay, RNA immunoprecipitation and co‐immunoprecipitation were performed to verify the interaction between circTLK1/PARP1 and miR‐17‐5p. Results CircTLK1, PARP1 and HMGB1 were up‐regulated in the in vitro and in vivo models of septic cardiomyopathy. CircTLK1 inhibition restrained LPS‐induced up‐regulation of PARP1 and HMGB1. Moreover, circTLK1 knockdown repressed sepsis‐induced mtDNA oxidative damage, mitochondrial dysfunction and consequent cardiomyocyte apoptosis by inhibiting PARP1/HMGB1 axis in vitro and in vivo. In addition, circTLK1 enhanced PARP1 expression via sponging miR‐17‐5p. Inhibition of miR‐17‐5p abolished the protective effects of circTLK1 silencing on oxidative mtDNA damage and cardiomyocyte apoptosis. Conclusion CircTLK1 sponged miR‐17‐5p to aggravate mtDNA oxidative damage, mitochondrial dysfunction and cardiomyocyte apoptosis via activating PARP1/HMGB1 axis during sepsis, indicating that circTLK1 may be a putative therapeutic target for septic cardiomyopathy.
Collapse
Affiliation(s)
- Yu Qiu
- Emergency Center, Hunan Children's Hospital, Changsha, China
| | - Ying Yu
- Department of Hepatopathy, Hunan Children's Hospital, Changsha, China
| | - Xiao-Mei Qin
- Department of Hepatopathy, Hunan Children's Hospital, Changsha, China
| | - Tao Jiang
- Department of Hepatopathy, Hunan Children's Hospital, Changsha, China
| | - Yan-Fang Tan
- Department of Hepatopathy, Hunan Children's Hospital, Changsha, China
| | - Wen-Xian Ouyang
- Department of Hepatopathy, Hunan Children's Hospital, Changsha, China
| | - Zheng-Hui Xiao
- Emergency Center, Hunan Children's Hospital, Changsha, China
| | - Shuang-Jie Li
- Department of Hepatopathy, Hunan Children's Hospital, Changsha, China
| |
Collapse
|
22
|
Song B, Zhao H, Yang H, Wang S. Efficacy of graphene oxide-loaded cationic antimicrobial peptide AWRK6 on the neutralization of endotoxin activity and in the treatment of sepsis. Aging (Albany NY) 2021; 13:19867-19877. [PMID: 34388113 PMCID: PMC8386569 DOI: 10.18632/aging.203397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/02/2021] [Indexed: 11/25/2022]
Abstract
Objective: This study is to assess the therapeutic effect of graphene oxide (GO) loaded with AWRK6 on endotoxin-induced sepsis. Method: AWRK6/GO was prepared by GO loaded AWRK6, with the structure characterization of AWRK6/GO conducted by atomic force microscope (AFM) and ultraviolet spectrophotometer, the sustained release rate of AWRK6/GO detected by high performance liquid chromatography (HPLC), and the neutralization ability of AWRK6/GO to lipopolysaccharide (LPS) tested by in vitro experiments. The levels of IL-8 and TNF-α in mouse cells after drug intervention were detected by ELISA; a LPS mouse model was established to observe the effects of drug intervention on the survival cycle and survival rate of mice. Results: The sustained drug release rate of AWRK6/GO reached 85% within 24 hours observed under in vitro conditions, with an efficient neutralization effect to LPS (P < 0.01); Compared with the control group, the intervention of LPS succeeded in remarkably elevating the levels of IL-8 and TNF-α in the whole blood and macrophages of the mice (P < 0.01), whose survival cycle and survival rate consequently observed an obvious decline (P < 0.01); The intervention with AWRK6 or AWRK6/GO predominantly brought down the levels of IL-8 and TNF-α in the whole blood and macrophages of mice given LPS (P < 0.01), resulting in an elevation of the survival rate and survival time (P < 0.01). Conclusion: GO loaded with cationic antimicrobial peptide AWRK6 exerts a rosy neutralization effect on endotoxin activity, with no obvious side effects on mice observed, which is of certain application value in the treatment of sepsis.
Collapse
Affiliation(s)
- Bo Song
- Department of Emergency, Yantaishan Hospital, Yantai, Shandong Province, China
| | - Hongli Zhao
- Department of Senile Diseases, Dongying City Shengli Hospital, Dongying, Shandong Province, China
| | - Haiyan Yang
- Department of Emergency, Yantaishan Hospital, Yantai, Shandong Province, China
| | - Shengji Wang
- Department of Emergency, Linyi People's Hospital, Linyi, Shandong Province, China
| |
Collapse
|
23
|
Ye Z, Jia J, Lv Z, Zheng S. Identification of High-Mobility Group Box 1 (HMGB1) Expression as a Potential Predictor of Rejection and Poor Prognosis After Liver Transplantation. Ann Transplant 2021; 26:e931625. [PMID: 34282108 PMCID: PMC8306885 DOI: 10.12659/aot.931625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Acute cellular rejection (ACR) frequently occurs after liver transplantation (LT) and can result in permanent damage of the liver allograft. Specific and sensitive biomarkers for predicting and monitoring ACR are vital for guiding post-transplantation care. In the present study, we aimed to investigate the function of high-mobility group box 1 (HMGB1) in predicting ACR and prognosis after LT. MATERIAL AND METHODS A total of 113 LT recipients were enrolled in the study, including 62 patients in an ACR group and 51 patients in a non-rejection group. Using tissues from the 113 patients, HMGB1 expression was examined by immunohistochemistry, and the total score for HMGB1 expression was calculated by multiplying the percentage of immunoreactive cells score and the staining intensity score. We then analyzed the association between HMGB1 expression and clinical features. Finally, the function of HMGB1 in predicting the prognosis of LT was determined using Kaplan-Meier (K-M) survival and Cox multivariate analyses. RESULTS Immunohistochemical staining results demonstrated that the expression of HMGB1 was significantly increased in the ACR group, compared with that in the non-rejection group (P<0.05). Clinical characteristic analysis revealed that high HMGB1 levels were related to ACR (P<0.05). Moreover, K-M survival analysis showed that patients with high HMGB1 expression displayed poorer prognosis (P<0.05). Cox multivariate analysis demonstrated that HMGB1 was an independent prognostic predictor for post-LT survival (odds ratio, 3.283; P=0.008). CONCLUSIONS LT recipients' HMGB1 levels may be a useful and noninvasive biomarker for the prediction of ACR and prognosis after LT.
Collapse
Affiliation(s)
- Zhou Ye
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China (mainland).,Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou, Zhejiang, China (mainland)
| | - Junjun Jia
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China (mainland).,Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou, Zhejiang, China (mainland)
| | - Zhen Lv
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China (mainland).,Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou, Zhejiang, China (mainland)
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China (mainland).,Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, Hangzhou, Zhejiang, China (mainland)
| |
Collapse
|
24
|
Adán Areán JS, Vico TA, Marchini T, Calabró V, Evelson PA, Vanasco V, Alvarez S. Energy management and mitochondrial dynamics in cerebral cortex during endotoxemia. Arch Biochem Biophys 2021; 705:108900. [PMID: 33964247 DOI: 10.1016/j.abb.2021.108900] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/22/2021] [Accepted: 04/29/2021] [Indexed: 12/28/2022]
Abstract
Mitochondria play an essential role in inflammatory processes such as sepsis or endotoxemia, contributing to organ-cellular redox metabolism, emerging as the energy hub of the cell, and as an important center of action of second messengers. In this work, we aimed to elucidate the energy state, redox balance, and mitochondrial remodeling status in cerebral cortex in an experimental model of endotoxemia. Female Sprague-Dawley rats were subjected to a single dose of LPS (ip 8 mg kg-1 body weight) for 6 h. State 3 O2 consumption was observed increased, ATP production and P/O ratio were observed decreased, probably indicating an inefficient oxidative phosphorylation process. O2- production and both systemic and tissue NO markers were observed increased in treated animals. The existence of nitrated proteins suggests an alteration in the local redox balance and possible harmful effects over energetic processes. Increases in PGC-1α and mtTFA expression, and in OPA-1 expression, suggest an increase in de novo formation of mitochondria and fusion of pre-existing mitochondria. The observed elongation of mitochondria correlates with the occurrence of mild mitochondrial dysfunction and increased levels of systemic NO. Our work presents novel results that contribute to unravel the mechanism by which the triad endotoxemia-redox homeostasis-energy management interact in the cerebral cortex, leading to propose a relevant mechanism for future developing therapeutics with the aim of preserving this organ from inflammatory and oxidative damage.
Collapse
Affiliation(s)
- Juan Santiago Adán Areán
- Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Junín 946, C1113AAD, CABA, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Fisicoquímica, Junín 946, C1113AAD, CABA, Argentina.
| | - Tamara Antonela Vico
- Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Junín 946, C1113AAD, CABA, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Fisicoquímica, Junín 946, C1113AAD, CABA, Argentina.
| | - Timoteo Marchini
- Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Junín 946, C1113AAD, CABA, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Junín 946, C1113AAD, CABA, Argentina.
| | - Valeria Calabró
- Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Junín 946, C1113AAD, CABA, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Junín 946, C1113AAD, CABA, Argentina.
| | - Pablo Andrés Evelson
- Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Junín 946, C1113AAD, CABA, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Junín 946, C1113AAD, CABA, Argentina.
| | - Virginia Vanasco
- Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Junín 946, C1113AAD, CABA, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Fisicoquímica, Junín 946, C1113AAD, CABA, Argentina.
| | - Silvia Alvarez
- Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Junín 946, C1113AAD, CABA, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Fisicoquímica, Junín 946, C1113AAD, CABA, Argentina.
| |
Collapse
|
25
|
Circulating HMGB1 is elevated in veterans with Gulf War Illness and triggers the persistent pro-inflammatory microglia phenotype in male C57Bl/6J mice. Transl Psychiatry 2021; 11:390. [PMID: 34253711 PMCID: PMC8275600 DOI: 10.1038/s41398-021-01517-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 06/16/2021] [Accepted: 06/28/2021] [Indexed: 02/06/2023] Open
Abstract
Gulf War Illness (GWI) is a chronic, multi-symptom peripheral and CNS condition with persistent microglial dysregulation, but the mechanisms driving the continuous neuroimmune pathology are poorly understood. The alarmin HMGB1 is an autocrine and paracrine pro-inflammatory signal, but the role of circulating HMGB1 in persistent neuroinflammation and GWI remains largely unknown. Using the LPS model of the persistent microglial pro-inflammatory response, male C57Bl/6J mice injected with LPS (5 mg/kg IP) exhibited persistent changes in microglia morphology and elevated pro-inflammatory markers in the hippocampus, cortex, and midbrain 7 days after LPS injection, while the peripheral immune response had resolved. Ex vivo serum analysis revealed an augmented pro-inflammatory response to LPS when microglia cells were cultured with the 7-day LPS serum, indicating the presence of bioactive circulating factors that prime the microglial pro-inflammatory response. Elevated circulating HMGB1 levels were identified in the mouse serum 7 days after LPS administration and in the serum of veterans with GWI. Tail vein injection of rHMGB1 in male C57Bl/6 J mice elevated TNFα mRNA levels in the liver, hippocampus, and cortex, demonstrating HMGB1-induced peripheral and CNS effects. Microglia isolated at 7 days after LPS injection revealed a unique transcriptional profile of 17 genes when compared to the acute 3 H LPS response, 6 of which were also upregulated in the midbrain by rHMGB1, highlighting a distinct signature of the persistent pro-inflammatory microglia phenotype. These findings indicate that circulating HMGB1 is elevated in GWI, regulates the microglial neuroimmune response, and drives chronic neuroinflammation that persists long after the initial instigating peripheral stimulus.
Collapse
|
26
|
Autophagy: A Novel Horizon for Hair Cell Protection. Neural Plast 2021; 2021:5511010. [PMID: 34306061 PMCID: PMC8263289 DOI: 10.1155/2021/5511010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/21/2021] [Indexed: 12/20/2022] Open
Abstract
As a general sensory disorder, hearing loss was a major concern worldwide. Autophagy is a common cellular reaction to stress that degrades cytoplasmic waste through the lysosome pathway. Autophagy not only plays major roles in maintaining intracellular homeostasis but is also involved in the development and pathogenesis of many diseases. In the auditory system, several studies revealed the link between autophagy and hearing protection. In this review, we aimed to establish the correlation between autophagy and hair cells (HCs) from the aspects of ototoxic drugs, aging, and acoustic trauma and discussed whether autophagy could serve as a potential measure in the protection of HCs.
Collapse
|
27
|
Sun B, Ying S, Ma Q, Li H, Li J, Song J. Metformin ameliorates HMGB1-mediated oxidative stress through mTOR pathway in experimental periodontitis. Genes Dis 2021; 10:542-553. [DOI: 10.1016/j.gendis.2021.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/08/2021] [Accepted: 06/03/2021] [Indexed: 12/26/2022] Open
|
28
|
Long non-coding RNA GAS5 aggravates myocardial depression in mice with sepsis via the microRNA-449b/HMGB1 axis and the NF-κB signaling pathway. Biosci Rep 2021; 41:227999. [PMID: 33645622 PMCID: PMC8035624 DOI: 10.1042/bsr20201738] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 12/30/2020] [Accepted: 01/06/2021] [Indexed: 01/04/2023] Open
Abstract
Sepsis is a common cause of deaths of patients in intensive care unit. The study aims to figure out the role of long non-coding RNA (lncRNA) GAS5 in the myocardial depression in mice with sepsis. Cecal ligation and puncture (CLP) was applied to induce sepsis in mice, and then the heart function, myocardium structure, and the inflammatory response were evaluated. Differentially expressed lncRNAs in mice with sepsis were identified. Then gain- and loss-of-functions of GAS5 were performed in mice to evaluate its role in mouse myocardial depression. The lncRNA-associated microRNA (miRNA)-mRNA network was figured out via an integrative prediction and detection. Myocardial injury was observed by overexpression of high-mobility group box 1 (HMGB1) in septic mice with knockdown of GAS5 expression. Activity of NF-κB signaling was evaluated, and NF-κB inhibition was induced in mice with sepsis and overexpression of GAS5. Collectively, CLP resulted in myocardial depression and injury, and increased inflammation in mice. GAS5 was highly expressed in septic mice. GAS5 inhibition reduced myocardial depression, myocardial injury and inflammation responses in septic mice. GAS5 was identified to bind with miR-449b and to elevate HMGB1 expression, thus activating the NF-κB signaling. HMGB1 overexpression or NF-κB inactivation reduced the GAS5-induced myocardial depression and inflammation in septic mice. Our study suggested that GAS5 might promote sepsis-induced myocardial depression via the miR-449b/HMGB1 axis and the following NF-κB activation.
Collapse
|
29
|
Pearce L, Davidson SM, Yellon DM. Does remote ischaemic conditioning reduce inflammation? A focus on innate immunity and cytokine response. Basic Res Cardiol 2021; 116:12. [PMID: 33629195 PMCID: PMC7904035 DOI: 10.1007/s00395-021-00852-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 02/04/2021] [Indexed: 02/07/2023]
Abstract
The benefits of remote ischaemic conditioning (RIC) have been difficult to translate to humans, when considering traditional outcome measures, such as mortality and heart failure. This paper reviews the recent literature of the anti-inflammatory effects of RIC, with a particular focus on the innate immune response and cytokine inhibition. Given the current COVID-19 pandemic, the inflammatory hypothesis of cardiac protection is an attractive target on which to re-purpose such novel therapies. A PubMed/MEDLINE™ search was performed on July 13th 2020, for the key terms RIC, cytokines, the innate immune system and inflammation. Data suggest that RIC attenuates inflammation in animals by immune conditioning, cytokine inhibition, cell survival and the release of anti-inflammatory exosomes. It is proposed that RIC inhibits cytokine release via a reduction in nuclear factor kappa beta (NF-κB)-mediated NLRP3 inflammasome production. In vivo, RIC attenuates pro-inflammatory cytokine release in myocardial/cerebral infarction and LPS models of endotoxaemia. In the latter group, cytokine inhibition is associated with a profound survival benefit. Further clinical trials should establish whether the benefits of RIC in inflammation can be observed in humans. Moreover, we must consider whether uncomplicated MI and elective surgery are the most suitable clinical conditions in which to test this hypothesis.
Collapse
Affiliation(s)
- Lucie Pearce
- The Hatter Cardiovascular Institute, 67 Chenies Mews, London, WC1E 6HX, UK
| | - Sean M Davidson
- The Hatter Cardiovascular Institute, 67 Chenies Mews, London, WC1E 6HX, UK
| | - Derek M Yellon
- The Hatter Cardiovascular Institute, 67 Chenies Mews, London, WC1E 6HX, UK.
| |
Collapse
|
30
|
Wang S, Guan Y, Li T. The Potential Therapeutic Role of the HMGB1-TLR Pathway in Epilepsy. Curr Drug Targets 2021; 22:171-182. [PMID: 32729417 DOI: 10.2174/1389450121999200729150443] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 02/08/2023]
Abstract
Epilepsy is one of the most common serious neurological disorders, affecting over 70 million people worldwide. For the treatment of epilepsy, antiepileptic drugs (AEDs) and surgeries are widely used. However, drug resistance and adverse effects indicate the need to develop targeted AEDs based on further exploration of the epileptogenic mechanism. Currently, many efforts have been made to elucidate the neuroinflammation theory in epileptogenesis, which may show potential in the treatment of epilepsy. In this respect, an important target protein, high mobility group box 1 (HMGB1), has received increased attention and has been developed rapidly. HMGB1 is expressed in various eukaryotic cells and localized in the cell nucleus. When HMGB1 is released by injuries or diseases, it participates in inflammation. Recent studies suggest that HMGB1 via Toll-like receptor (TLR) pathways can trigger inflammatory responses and play an important role in epilepsy. In addition, studies of HMGB1 have shown its potential in the treatment of epilepsy. Herein, the authors analyzed the experimental and clinical evidence of the HMGB1-TLR pathway in epilepsy to summarize the theory of epileptogenesis and provide insights into antiepileptic therapy in this novel field.
Collapse
Affiliation(s)
- Shu Wang
- Department of Neurosurgery, SanBo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Yuguang Guan
- Department of Neurosurgery, SanBo Brain Hospital, Capital Medical University, Beijing 100093, China
| | - Tianfu Li
- Department of Neurology, SanBo Brain Hospital, Capital Medical University, Beijing 100093, China
| |
Collapse
|
31
|
Alikiaii B, Bagherniya M, Askari G, Johnston TP, Sahebkar A. The role of phytochemicals in sepsis: A mechanistic and therapeutic perspective. Biofactors 2021; 47:19-40. [PMID: 33217777 DOI: 10.1002/biof.1694] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/13/2020] [Indexed: 12/14/2022]
Abstract
Sepsis and septic shock are still a leading cause of mortality and morbidity in intensive care units worldwide. Sepsis is an uncontrolled and excessive response of the innate immune system toward the invading infectious microbes, characterized by the hyper-production of pro-inflammatory mediators such as interleukin (IL)-1β, IL-6, tumor-necrosis factor (TNF)-α, and high-mobility group box 1 (HMGB1). In severe sepsis, the overwhelming production of pro-inflammatory cytokines and reactive oxygen species may compromise organ function and lead to the induction of abnormal apoptosis in different organs, resulting in multiple organ dysfunction syndrome and death. Hence, compounds that are able to attenuate inflammatory responses may have therapeutic potential for sepsis treatment. Understanding the pathophysiology and underlying molecular mechanisms of sepsis may provide useful insights in the discovery and development of new effective therapeutics. Therefore, numerous studies have invested much effort into elucidating the mechanisms involved with the onset and development of sepsis. The present review mainly focuses on the molecules and signaling pathways involved in the pathogenicity of sepsis. Additionally, several well-known natural bioactive herbal compounds and phytochemicals, which have shown protective and therapeutic effects with regard to sepsis, as well as their mechanisms of action, are presented. This review suggests that these phytochemicals are able to attenuate the overwhelming inflammatory responses developed during sepsis by modulating different signaling pathways. Moreover, the anti-inflammatory and cytoprotective activities of phytochemicals make them potent compounds to be included as complementary therapeutic agents in the diets of patients suffering from sepsis in an effort to alleviate sepsis and its life-threatening complications, such as multi-organ failure.
Collapse
Affiliation(s)
- Babak Alikiaii
- Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Bagherniya
- Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gholamreza Askari
- Anesthesia and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Thomas P Johnston
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Halal Research Center of IRI, FDA, Tehran, Iran
- Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland
| |
Collapse
|
32
|
Didari T, Hassani S, Baeeri M, Navaei-Nigjeh M, Rahimifard M, Haghi-Aminjan H, Gholami M, Nejad SM, Hassan FI, Mojtahedzadeh M, Abdollahi M. Short-term Effects of Metformin on Cardiac and Peripheral Blood Cells Following Cecal Ligation and Puncture-induced Sepsis. Drug Res (Stuttg) 2020; 71:257-264. [PMID: 33348389 DOI: 10.1055/a-1322-7478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIM OF THE STUDY Sepsis has well-documented inflammatory effects on cardiovascular and blood cells. This study is designed to investigate potential anti-inflammatory effects of metformin on cardiac and blood cells 12 and 24 h following cecal ligation and puncture (CLP)-induced sepsis. METHODS For the purpose of this study, 36 male Wistar rats were divided into six groups: two groups underwent CLP, two groups underwent CLP and received metformin, and two groups only received sham operations. 12 h later, 18 rats (half of rats in each of the three aforementioned groups) were sacrificed and cardiac and blood cells were harvested. Subsequently, 12 h later, the rest of the rats were euthanatized. In all harvested blood and cardiac cells, oxidative stress indicators, antioxidant properties, count of blood cells, neutrophil infiltration, percentage of weight loss and pathological assessment were conducted. RESULTS In our experiment, metformin elevated antioxidant levels, improved function of blood cells and percentage of weight loss. Moreover, in the groups which received metformin, oxidative stress and neutrophil infiltration markers were decreased significantly. Moreover, pathological investigations of cardiac cell injury were reduced in the metformin group. CONCLUSIONS Our findings suggest that in CLP induced sepsis model, metformin can improve the function of blood and cardiac cells through alleviating inflammation, improvement of anti-inflammation properties, and enhancement of blood profile, and all these effects are more pronounced after 24 h in comparison with 12 h after induction of sepsis.
Collapse
Affiliation(s)
- Tina Didari
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Shokoufeh Hassani
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Baeeri
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Navaei-Nigjeh
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mahban Rahimifard
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Haghi-Aminjan
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mahdi Gholami
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Solmaz Mohammadi Nejad
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Fatima Ismail Hassan
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Mojtahedzadeh
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.,Department of Clinical Pharmacy, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.,Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
33
|
Roy TK, Secomb TW. Effects of impaired microvascular flow regulation on metabolism-perfusion matching and organ function. Microcirculation 2020; 28:e12673. [PMID: 33236393 DOI: 10.1111/micc.12673] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 11/17/2020] [Indexed: 12/14/2022]
Abstract
Impaired tissue oxygen delivery is a major cause of organ damage and failure in critically ill patients, which can occur even when systemic parameters, including cardiac output and arterial hemoglobin saturation, are close to normal. This review addresses oxygen transport mechanisms at the microcirculatory scale, and how hypoxia may occur in spite of adequate convective oxygen supply. The structure of the microcirculation is intrinsically heterogeneous, with wide variations in vessel diameters and flow pathway lengths, and consequently also in blood flow rates and oxygen levels. The dynamic processes of structural adaptation and flow regulation continually adjust microvessel diameters to compensate for heterogeneity, redistributing flow according to metabolic needs to ensure adequate tissue oxygenation. A key role in flow regulation is played by conducted responses, which are generated and propagated by endothelial cells and signal upstream arterioles to dilate in response to local hypoxia. Several pathophysiological conditions can impair local flow regulation, causing hypoxia and tissue damage leading to organ failure. Therapeutic measures targeted to systemic parameters may not address or may even worsen tissue oxygenation at the microvascular level. Restoration of tissue oxygenation in critically ill patients may depend on restoration of endothelial cell function, including conducted responses.
Collapse
Affiliation(s)
- Tuhin K Roy
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Timothy W Secomb
- Department of Physiology, University of Arizona, Tucson, AZ, 85724, USA
| |
Collapse
|
34
|
Downregulation of lncRNA FIRRE relieved the neuropathic pain of female mice by suppressing HMGB1 expression. Mol Cell Biochem 2020; 476:841-852. [PMID: 33151463 DOI: 10.1007/s11010-020-03949-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 06/15/2020] [Indexed: 10/23/2022]
Abstract
Long non-coding RNAs are novel regulators in neuropathic pain. In this study, we aimed to explore the role and the mechanism of lncRNA FIRRE in regulating the secretion of microglial cells-derived proinflammatory cytokines in neuropathic pain. The female mouse model of neuropathic pain was established by bilateral chronic constriction injury (CCI) surgery. The mouse primary microglial cells were induced by lipopolysaccharide (LPS). The interaction between FIRRE and high mobility group box 1 (HMGB1) was assessed by RNA immunoprecipitation, RNA pull-down, and ubiquitination assays. FIRRE expression was upregulated in the spinal cord tissue of female CCI mice and LPS-induced microglial cells. The concentrations of IL-1β, TNF-α, and IL-6 from LPS-induced microglial cells were reduced by FIRRE knockdown. FIRRE bound to HMGB1 and negatively regulated its protein level. The ubiquitination degradation of HMGB1 was promoted by FIRRE silence. The HMGB1 over-expression reversed the inhibitory effect of FIRRE silence on the secretion of IL-1β, TNF-α, and IL-6 from LPS-induced microglial cells. The in vivo experiment showed that FIRRE knockdown alleviated neuropathic pain of CCI female mice. Our findings indicated that lncRNA FIRRE downregulation inhibits the secretion of microglial cells-derived proinflammatory cytokines by decreasing HMGB1 expression, thereby relieving neuropathic pain of female mice.
Collapse
|
35
|
Rodrigues AT, Rodrigues JT, Rodrigues CT, Volpe CMDO, Rocha-Silva F, Nogueira-Machado JA, Alberti LR. Association between thrombomodulin and high mobility group box 1 in sepsis patients. World J Crit Care Med 2020; 9:63-73. [PMID: 33134112 PMCID: PMC7579433 DOI: 10.5492/wjccm.v9.i4.63] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/31/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND High mobility group box 1 (HMGB1) has been studied as a molecule associated with severe outcomes in sepsis and thrombomodulin (TM) seems to decrease HMGB1 activity.
AIM To investigate the role of the thrombomodulin/high mobility group box 1 (T/H) ratio in patients with sepsis and their association with their clinic, testing the hypothesis that higher ratios are associated with better outcomes.
METHODS Twenty patients diagnosed with sepsis or septic shock, according to the 2016 criteria sepsis and septic shock (Sepsis-3), were studied. Patients were followed until they left the intensive care unit or until they achieved 28 d of hospitalization (D28). The following clinical outcomes were observed: Sequential Organ Failure Assessment (SOFA) score; Need for mechanical pulmonary ventilation; Presence of septic shock; Occurrence of sepsis-induced coagulopathy; Need for renal replacement therapy (RRT); and Death.
RESULTS The results showed that patients with SOFA scores greater than or equal to 12 points had higher serum levels of TM: 76.41 ± 29.21 pg/mL vs 37.41 ± 22.55 pg/mL among those whose SOFA scores were less than 12 points, P = 0.003. The T/H ratio was also higher in patients whose SOFA scores were greater than or equal to 12 points, P = 0.001. The T/H ratio was, on average, three times higher in patients in need of RRT (0.38 ± 0.14 vs 0.11 ± 0.09), P < 0.001.
CONCLUSION Higher serum levels of TM and, therefore, higher T/H ratio in the first 24 h after the diagnosis of sepsis were associated with more severe disease and the need for renal replacement therapy, while those with better clinical outcomes and those who were discharged before D28 showed a tendency for lower T/H ratio values.
Collapse
Affiliation(s)
- Adriana Teixeira Rodrigues
- Department of Pediatrics, School of Medicine, Federal University of Minas Gerais, Belo Horizonte 30130-100, Minas Gerais, Brazil
- Graduation Program in Medicine/Biomedicine - Santa Casa Hospital - Education and Research, Belo Horizonte 30150-240, Minas Gerais, Brazil
| | - Julia Teixeira Rodrigues
- Department of Pharmacy, Federal University of Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | | | - Caroline Maria de Oliveira Volpe
- Department of Immunology, Graduation Program in Medicine/Biomedicine - Santa Casa Hospital - Education and Research, Belo Horizonte 30150-240, Minas Gerais, Brazil
| | - Fabiana Rocha-Silva
- Clinical Laboratory, Graduation Program in Medicine/Biomedicine - Santa Casa Hospital - Education and Research, Belo Horizonte 30150-240, Minas Gerais, Brazil
| | - Jose Augusto Nogueira-Machado
- Department of Immunology, Graduation Program in Medicine/Biomedicine - Santa Casa Hospital - Education and Research, Belo Horizonte 30150-240, Minas Gerais, Brazil
| | - Luiz Ronaldo Alberti
- Graduation Program in Medicine/Biomedicine - Santa Casa Hospital - Education and Research, Belo Horizonte 30150-240, Minas Gerais, Brazil
- Department of Surgery, School of Medicine, Federal University of Minas Gerais, Belo Horizonte 30220-000, Minas Gerais, Brazil
| |
Collapse
|
36
|
Wyczanska M, Lange-Sperandio B. DAMPs in Unilateral Ureteral Obstruction. Front Immunol 2020; 11:581300. [PMID: 33117389 PMCID: PMC7575708 DOI: 10.3389/fimmu.2020.581300] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/21/2020] [Indexed: 12/22/2022] Open
Abstract
Damage-associated molecular patterns (DAMPs) are released from tubular and interstitial cells in the kidney after unilateral ureteral obstruction (UUO). DAMPs are recognized by pattern recognition receptors (PRRs), which mediate the initiation of an immune response and the release of inflammatory cytokines. The animal model of UUO is used for various purposes. UUO in adult mice serves as a model for accelerated renal fibrosis, which is a hallmark of progressive renal disease. UUO in adult mice enables to study cell death, inflammation, and extracellular matrix deposition in the kidney. Neonatal UUO is a model for congenital obstructive nephropathies. It studies inflammation, apoptosis, and interstitial fibrosis in the neonatal kidney, when nephrogenesis is still ongoing. Following UUO, several DAMPs as well as DAMP receptors are upregulated. In adult UUO, soluble uric acid is upregulated and activates the NOD-like receptor family, pyrin domain containing-3 (NLRP3) inflammasome, which promotes fibrosis, apoptosis, and reactive oxygen species (ROS) injury. Further DAMPs associated with UUO are uromodulin, members of the IL-1 family, and necrotic cell DNA, all of which promote sterile inflammation. In neonatal UUO, the receptor for advanced glycation endproducts (RAGE) is highly upregulated. RAGE is a ligand for several DAMPs, including high mobility group box 1 (HMGB1) and S100 proteins, which play an important role in renal fibrosis. Additionally, necroptosis is an important mechanism of cell death, besides apoptosis, in neonatal UUO. It is highly inflammatory due to release of cytokines and specific DAMPs. The release and recognition of DAMPs initiate sterile inflammation, which makes them good candidates to develop and improve diagnostic and therapeutic strategies in renal fibrosis and congenital obstructive nephropathies.
Collapse
Affiliation(s)
- Maja Wyczanska
- Department of Pediatrics, Dr. v. Hauner Children's Hospital, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Bärbel Lange-Sperandio
- Department of Pediatrics, Dr. v. Hauner Children's Hospital, University Hospital, Ludwig Maximilian University, Munich, Germany
| |
Collapse
|
37
|
Xu L, Hu G, Xing P, Zhou M, Wang D. Paclitaxel alleviates the sepsis-induced acute kidney injury via lnc-MALAT1/miR-370-3p/HMGB1 axis. Life Sci 2020; 262:118505. [PMID: 32998017 DOI: 10.1016/j.lfs.2020.118505] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 12/11/2022]
Abstract
AIMS To investigate the effects of paclitaxel on lipopolysaccharide (LPS)-induced acute kidney injury (AKI) and its related mechanisms. MAIN METHODS The sepsis-associated AKI was induced by LPS using HK-2 cells. Then the mRNA and protein expression levels of relevant genes in the serum of sepsis patients and HK-2 cells with LPS-induced AKI were detected by qRT-PCR and western blot analyses before and after paclitaxel treatment, respectively. Subsequently, the cell counting kit-8 (CCK-8) and flow cytometry assays were performed to estimate the effects of paclitaxel, lnc-MALAT1, miR-370-3p and HMGB1 on the proliferation and apoptosis of HK-2 cells injured by LPS. KEY FINDINGS Lnc-MALAT1 was increased both in the serum of sepsis patients and cells injured by LPS, which could inhibit the cell proliferation, promote the cell apoptosis and increase the expression of TNF-α, IL-6 and IL-1β caused by paclitaxel. Moreover, lnc-MALAT1 was sponged with miR-370-3p which had the inverse effects with lnc-MALAT1 in LPS induced HK-2 cells. What's more, miR-370-3p targeted HMGB1 which was induced in serum and cells of sepsis. Knockdown of miR-370-3p inhibited the expression of HMGB1 and suppressed the proliferation but promoted the apoptosis of HK-2 cells injured by LPS as well as the expression of TNF-α, IL-6 and IL-1β. Besides, paclitaxel restrained the expression of HMGB1 via regulating lnc-MALAT1/miR-370-3p axis. SIGNIFICANCE Paclitaxel could protect against LPS-induced AKI via the regulation of lnc-MALAT1/miR-370-3p/HMGB1 axis and the expression of TNF-α, IL-6 and IL-1β, revealing that paclitaxel might act as a therapy drug in reducing sepsis-associated AKI.
Collapse
Affiliation(s)
- Lina Xu
- Department of Infectious Diseases, Shanghai University of Medicine & Health Sciences Affiliated Shanghai Sixth People's Hospital East, No. 222, West Three Road Around Lake, Pudong District, Shanghai 201306, PR China
| | - Guyong Hu
- Department of Emergency, Shanghai University of Medicine & Health Sciences Affiliated Shanghai Sixth People's Hospital East, No. 222, West Three Road Around Lake, Pudong District, Shanghai 201306, PR China
| | - Pengcheng Xing
- Department of Emergency, Shanghai University of Medicine & Health Sciences Affiliated Shanghai Sixth People's Hospital East, No. 222, West Three Road Around Lake, Pudong District, Shanghai 201306, PR China.
| | - Minjie Zhou
- Department of Emergency, Shanghai University of Medicine & Health Sciences Affiliated Shanghai Sixth People's Hospital East, No. 222, West Three Road Around Lake, Pudong District, Shanghai 201306, PR China
| | - Donglian Wang
- Department of Emergency, Shanghai University of Medicine & Health Sciences Affiliated Shanghai Sixth People's Hospital East, No. 222, West Three Road Around Lake, Pudong District, Shanghai 201306, PR China
| |
Collapse
|
38
|
Husain M, Becker EJ, Bone NB, Schmitt A, Pittet JF, Zmijewski JW. NOX2 decoy peptides disrupt trauma-mediated neutrophil immunosuppression and protect against lethal peritonitis. Redox Biol 2020; 36:101651. [PMID: 32771683 PMCID: PMC7415417 DOI: 10.1016/j.redox.2020.101651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/17/2020] [Accepted: 07/19/2020] [Indexed: 12/29/2022] Open
Abstract
Trauma and sepsis are frequent causes of immunosuppression and risk of secondary bacterial infections and mortality among critically ill patients. Reduced activity of neutrophil NADPH oxidase 2 (NOX2) and impaired bacterial killing are among the major indices of immunosuppression. We hypothesize that NOX2-decoy peptides disrupt the inhibition of neutrophil NOX2 by plasma of patients with severe trauma and immunosuppression, thereby preserving the neutrophil respiratory burst that is a central antimicrobial mechanism. We demonstrate that plasma from trauma/hemorrhage (T/H) patients, but not healthy donors (HD), significantly reduced the activity of neutrophil NOX2 and impaired bacterial killing. The inhibitory action of plasma was associated with an increase in bacterial infections among trauma survivors. High Mobility Group Box 1 (HMGB1) is a mediator of lethality in trauma and sepsis and our mechanistic studies revealed that disulfide and oxidized forms of HMGB1 bind to the gp91phox subunit of NOX2, and thus decrease the neutrophil respiratory burst and bacterial killing. NOX2 decoy Anti-Immunosuppression (Ai) Peptides 1 and 3 effectively disrupted the immunosuppressive action of T/H plasma. HMGB1 selectively binds to Ai-Peptide 3, supporting the possibility for direct interaction between HMGB1 and the third external loop of gp91phox. In vivo, Ai-Peptides improved survival of mice subjected to lethal peritonitis. Taken together, plasma-dependent inhibition of neutrophil NOX2 appeared to be a suitable indicator of immunosuppression in patients with severe trauma. Given that gp91phox decoys protected the neutrophil respiratory burst, selected Ai-Peptides have therapeutic potential to reduce bacterial infections and end-organ injury associated with sepsis/trauma-induced immunosuppression. Plasma-induced neutrophil dysfunction is linked to immunosuppression in trauma. HMGB1 are among relevant mediators of neutrophil immunosuppression. NOX2 decoy peptides improved survival of mice with intraperitoneal infections.
Collapse
Affiliation(s)
- Maroof Husain
- Department of Medicine, Birmingham, AL, 35294-0012, USA
| | | | | | - Amy Schmitt
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294-0012, USA
| | - Jean-Francois Pittet
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294-0012, USA
| | | |
Collapse
|
39
|
Cicco S, Cicco G, Racanelli V, Vacca A. Neutrophil Extracellular Traps (NETs) and Damage-Associated Molecular Patterns (DAMPs): Two Potential Targets for COVID-19 Treatment. Mediators Inflamm 2020; 2020:7527953. [PMID: 32724296 PMCID: PMC7366221 DOI: 10.1155/2020/7527953] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/11/2020] [Accepted: 06/30/2020] [Indexed: 12/17/2022] Open
Abstract
COVID-19 is a pandemic disease caused by the new coronavirus SARS-CoV-2 that mostly affects the respiratory system. The consequent inflammation is not able to clear viruses. The persistent excessive inflammatory response can build up a clinical picture that is very difficult to manage and potentially fatal. Modulating the immune response plays a key role in fighting the disease. One of the main defence systems is the activation of neutrophils that release neutrophil extracellular traps (NETs) under the stimulus of autophagy. Various molecules can induce NETosis and autophagy; some potent activators are damage-associated molecular patterns (DAMPs) and, in particular, the high-mobility group box 1 (HMGB1). This molecule is released by damaged lung cells and can induce a robust innate immunity response. The increase in HMGB1 and NETosis could lead to sustained inflammation due to SARS-CoV-2 infection. Therefore, blocking these molecules might be useful in COVID-19 treatment and should be further studied in the context of targeted therapy.
Collapse
Affiliation(s)
- Sebastiano Cicco
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro Medical School, Piazza G. Cesare 11, I-70124 Bari, Italy
| | - Gerolamo Cicco
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro Medical School, Piazza G. Cesare 11, I-70124 Bari, Italy
| | - Vito Racanelli
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro Medical School, Piazza G. Cesare 11, I-70124 Bari, Italy
| | - Angelo Vacca
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro Medical School, Piazza G. Cesare 11, I-70124 Bari, Italy
| |
Collapse
|
40
|
Kim HS, Han M, Park IH, Park CH, Kwak MS, Shin JS. Sulfatide Inhibits HMGB1 Secretion by Hindering Toll-Like Receptor 4 Localization Within Lipid Rafts. Front Immunol 2020; 11:1305. [PMID: 32655573 PMCID: PMC7324676 DOI: 10.3389/fimmu.2020.01305] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/22/2020] [Indexed: 12/11/2022] Open
Abstract
The high mobility group box 1 (HMGB1) is a well-known late mediator of sepsis, secreted by multiple stimuli, involving pathways, such as the mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NF-κB) pathways, and reactive oxygen species (ROS) under inflammation. Sulfatide, in contrast, is a sphingolipid commonly found in myelin sheets with a disputed immunological role. We sought to determine the immunological characteristics of sulfatide in the periphery by analyzing the secretion of HMGB1 triggered by lipopolysaccharide (LPS) stimulation in Raw 264.7 cells. Suppression of HMGB1 secretion by inhibiting its cytosolic translocation was observed after pre-treatment with sulfatide before LPS stimulation. Further analysis of the downstream molecules of toll-like receptor (TLR) signaling revealed suppression of c-Jun N-terminal kinase (JNK) phosphorylation and p65 translocation. LPS-mediated ROS production was also decreased when sulfatide pre-treatment was provided, caused by the down-regulation of the phosphorylation of activators, such as IRAK4 and TBK1. Investigation of the upstream mechanism that encompasses all the aforementioned inhibitory characteristics unveiled the involvement of lipid rafts. In addition to the co-localization of biotinylated sulfatide and monosialotetrahexosylganglioside, a decrease in LPS-induced co-localization of TLR4 and lipid raft markers was observed when sulfatide treatment was given before LPS stimulation. Overall, sulfatide was found to exert its anti-inflammatory properties by hindering the co-localization of TLR4 and lipid rafts, nullifying the effect of LPS on TLR4 signaling. Similar effects of sulfatide were also confirmed in the LPS-mediated murine experimental sepsis model, showing decreased levels of serum HMGB1, increased survivability, and reduced pathological severity.
Collapse
Affiliation(s)
- Hee Sue Kim
- Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Myeonggil Han
- Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - In Ho Park
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Cheol Ho Park
- Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea
| | - Man Sup Kwak
- Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea.,Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Jeon-Soo Shin
- Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea.,Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea.,Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| |
Collapse
|
41
|
Septic Shock Alters Mitochondrial Respiration of Lymphoid Cell-Lines and Human Peripheral Blood Mononuclear Cells: The Role of Plasma. Shock 2020; 51:97-104. [PMID: 29461465 DOI: 10.1097/shk.0000000000001125] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION In septic shock patients, postseptic immunosuppression state after the systemic inflammatory response syndrome is responsible for nosocomial infections, with subsequent increased mortality. The aim of the present study was to assess the underlying cellular mechanisms of the postseptic immunosuppression state, by investigating mitochondrial functions of peripheral blood mononuclear cells (PBMCs) from septic shock patients over 7 days. MATERIALS AND METHODS Eighteen patients admitted to a French intensive care unit for septic shock were included. At days 1 and 7, PBMCs were isolated by Ficoll density gradient centrifugation. Mitochondrial respiration of intact septic PBMCs was assessed versus control group PBMCs, by measuring O2 consumption in plasma, using high-resolution respirometry. Mitochondrial respiration was then compared between septic plasmas and control plasmas for control PBMCs, septic PBMCs, and lymphoid cell-line (CEM). To investigate the role of plasma, we measured several plasma cytokines, among them High-Mobility Group Box 1 (HMGB1), by enzyme-linked immunosorbent assays. RESULTS Basal O2 consumption of septic shock PBMCs was of 8.27 ± 3.39 and 10.48 ± 3.99 pmol/s/10 cells at days 1 and 7, respectively, significantly higher than in control PBMCs (5.37 ± 1.46 pmol/s/10 cells, P < 0.05). Septic patient PBMCs showed a lower response to oligomycin, suggesting a reduced ATP-synthase activity, as well as an increased response to carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone (FCCP) suggesting an increased mitochondrial respiratory capacity. At 6 h, septic plasmas showed a decreased O2 consumption of CEM (4.73 ± 1.46 vs. 6.58 ± 1.53, P < 0.05) as well as in control group PBMCs (1.76 ± 0.36 vs. 2.70 ± 0.42, P < 0.05), and triggered a decreased ATP-synthase activity but an increased response to FCCP. These differences are not explained by different cell survival. High HMGB1 levels were significantly associated with reduced PBMCs mitochondrial respiration. CONCLUSIONS Septic plasma impairs mitochondrial respiration in immune cells, with a possible role of the proinflammatory protein HMGB1, leading to a subsequent compensation, probably by enzymatic activation. This compensation result is an improvement of global mitochondrial respiratory capacity, but without restoring ATP-synthase activity.
Collapse
|
42
|
Denning NL, Aziz M, Gurien SD, Wang P. DAMPs and NETs in Sepsis. Front Immunol 2019; 10:2536. [PMID: 31736963 PMCID: PMC6831555 DOI: 10.3389/fimmu.2019.02536] [Citation(s) in RCA: 343] [Impact Index Per Article: 68.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 10/11/2019] [Indexed: 12/21/2022] Open
Abstract
Sepsis is a deadly inflammatory syndrome caused by an exaggerated immune response to infection. Much has been focused on host response to pathogens mediated through the interaction of pathogen-associated molecular patterns (PAMPs) and pattern recognition receptors (PRRs). PRRs are also activated by host nuclear, mitochondrial, and cytosolic proteins, known as damage-associated molecular patterns (DAMPs) that are released from cells during sepsis. Some well described members of the DAMP family are extracellular cold-inducible RNA-binding protein (eCIRP), high mobility group box 1 (HMGB1), histones, and adenosine triphosphate (ATP). DAMPs are released from the cell through inflammasome activation or passively following cell death. Similarly, neutrophil extracellular traps (NETs) are released from neutrophils during inflammation. NETs are webs of extracellular DNA decorated with histones, myeloperoxidase, and elastase. Although NETs contribute to pathogen clearance, excessive NET formation promotes inflammation and tissue damage in sepsis. Here, we review DAMPs and NETs and their crosstalk in sepsis with respect to their sources, activation, release, and function. A clear grasp of DAMPs, NETs and their interaction is crucial for the understanding of the pathophysiology of sepsis and for the development of novel sepsis therapeutics.
Collapse
Affiliation(s)
- Naomi-Liza Denning
- Center for Immunology and Inflammation, Feinstein Institutes for Medical Research, Manhasset, NY, United States.,Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States.,Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Monowar Aziz
- Center for Immunology and Inflammation, Feinstein Institutes for Medical Research, Manhasset, NY, United States.,Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States
| | - Steven D Gurien
- Center for Immunology and Inflammation, Feinstein Institutes for Medical Research, Manhasset, NY, United States.,Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Ping Wang
- Center for Immunology and Inflammation, Feinstein Institutes for Medical Research, Manhasset, NY, United States.,Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States.,Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States.,Department of Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| |
Collapse
|
43
|
The nuclear transcription factor FoxG1 affects the sensitivity of mimetic aging hair cells to inflammation by regulating autophagy pathways. Redox Biol 2019; 28:101364. [PMID: 31731101 PMCID: PMC6920089 DOI: 10.1016/j.redox.2019.101364] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/22/2019] [Accepted: 10/27/2019] [Indexed: 12/18/2022] Open
Abstract
Inflammation is a self-defense response to protect individuals from infection and tissue damage, but excessive or persistent inflammation can have adverse effects on cell survival. Many individuals become especially susceptible to chronic-inflammation-induced sensorineural hearing loss as they age, but the intrinsic molecular mechanism behind aging individuals' increased risk of hearing loss remains unclear. FoxG1 (forkhead box transcription factor G1) is a key transcription factor that plays important roles in hair cell survival through the regulation of mitochondrial function, but how the function of FoxG1 changes during aging and under inflammatory conditions is unknown. In this study, we first found that FoxG1 expression and autophagy both increased gradually in the low concentration lipopolysaccharide (LPS)-induced inflammation model, while after high concentration of LPS treatment both FoxG1 expression and autophagy levels decreased as the concentration of LPS increased. We then used siRNA to downregulate Foxg1 expression in hair cell-like OC-1 cells and found that cell death and apoptosis were significantly increased after LPS injury. Furthermore, we used d-galactose (D-gal) to create an aging model with hair cell-like OC-1 cells and cochlear explant cultures in vitro and found that the expression of Foxg1 and the level of autophagy were both decreased after D-gal and LPS co-treatment. Lastly, we knocked down the expression of Foxg1 under aged inflammation conditions and found increased numbers of dead and apoptotic cells. Together these results suggest that FoxG1 affects the sensitivity of mimetic aging hair cells to inflammation by regulating autophagy pathways.
Collapse
|
44
|
Bao L, Li X, Lin Z. PTEN overexpression promotes glioblastoma death through triggering mitochondrial division and inactivating the Akt pathway. J Recept Signal Transduct Res 2019; 39:215-225. [PMID: 31464538 DOI: 10.1080/10799893.2019.1655051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Objective: PTEN has been acknowledged as an anticancer factor in the progression of glioblastoma. Mitochondrial division has been found to be associated with cancer cell death. Objective: The aim of our study is to explore whether PTEN attenuates the development of glioblastoma by modulating mitochondrial division. Materials and methods: PTEN adenovirus was used to overexpress PTEN in U87 cells. Mitochondrial function was detected via western blot and immunofluorescence. Pathway blocker was used to inhibit the Akt activation. Results: The results of our study demonstrated that PTEN overexpression reduced cell viability by increasing cell apoptosis. At the molecular level, PTEN overexpression activated mitochondrial apoptosis by mediating mitochondrial dysfunction. Furthermore, we found that Drp1-related mitochondrial division was required for PTEN-mediated mitochondrial dysfunction and cell death. Finally, we found that PTEN modulated Drp1-related mitochondrial division via the Akt pathway; inactivation of Akt induced cell death, and mitochondrial damage, similar to the results obtained via PTEN overexpression. Conclusions: Taken together, our results clarify that the anticancer mechanism of PTEN in glioblastoma is dependent on the activation of Drp1-related mitochondrial division via Akt pathway modulation. This finding might provide new insight into the tumor-suppressive role played by PTEN in glioblastoma.
Collapse
Affiliation(s)
- Long Bao
- Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University , Beijing , China
| | - Xiang Li
- Department of Pediatrics, The First Affiliated Hospital of Jinzhou Medical University , Jinzhou , Liaoning , China
| | - Zhixiong Lin
- Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University , Beijing , China
| |
Collapse
|
45
|
Fassi EMA, Sgrignani J, D'Agostino G, Cecchinato V, Garofalo M, Grazioso G, Uguccioni M, Cavalli A. Oxidation State Dependent Conformational Changes of HMGB1 Regulate the Formation of the CXCL12/HMGB1 Heterocomplex. Comput Struct Biotechnol J 2019; 17:886-894. [PMID: 31333815 PMCID: PMC6617219 DOI: 10.1016/j.csbj.2019.06.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/28/2019] [Accepted: 06/18/2019] [Indexed: 12/15/2022] Open
Abstract
High-mobility Group Box 1 (HMGB1) is an abundant protein present in all mammalian cells and involved in several processes. During inflammation or tissue damage, HMGB1 is released in the extracellular space and, depending on its redox state, can form a heterocomplex with CXCL12. The heterocomplex acts exclusively via the chemokine receptor CXCR4 enhancing leukocyte recruitment. Here, we used multi-microsecond molecular dynamics (MD) simulations to elucidate the effect of the disulfide bond on the structure and dynamics of HMGB1. The results of the MD simulations show that the presence or lack of the disulfide bond between Cys23 and Cys45 modulates the conformational space explored by HMGB1, making the reduced protein more suitable to form a complex with CXCL12.
Collapse
Key Words
- CXCL12
- CXCL12, C-X-C motif chemokine 12
- CXCR4, C-X-C chemokine receptor type 4
- Conformational ensemble
- HMGB1
- HMGB1, High-mobility Group Box 1
- MD, Molecular dynamics
- Molecular dynamics
- Protein-protein docking
- RMSD, Root mean square deviation
- RoG, Radius of gyration
- SASA, Solvent accessible surface area
- TLR2 or TLR4, Toll-like Receptor 2 or 4
- ds-HMGB1, Disulfide High-mobility Group Box 1
- fr-HMGB1, Full reduced High-mobility Group Box 1
Collapse
Affiliation(s)
- Enrico M A Fassi
- Institute for Research in Biomedicine, Università della Svizzera Italiana, CH-6500 Bellinzona, Switzerland
| | - Jacopo Sgrignani
- Institute for Research in Biomedicine, Università della Svizzera Italiana, CH-6500 Bellinzona, Switzerland
| | - Gianluca D'Agostino
- Institute for Research in Biomedicine, Università della Svizzera Italiana, CH-6500 Bellinzona, Switzerland
| | - Valentina Cecchinato
- Institute for Research in Biomedicine, Università della Svizzera Italiana, CH-6500 Bellinzona, Switzerland
| | - Maura Garofalo
- Institute for Research in Biomedicine, Università della Svizzera Italiana, CH-6500 Bellinzona, Switzerland.,University of Lausanne (UNIL), CH-1015, Lausanne, Switzerland
| | - Giovanni Grazioso
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milan, Italy
| | - Mariagrazia Uguccioni
- Institute for Research in Biomedicine, Università della Svizzera Italiana, CH-6500 Bellinzona, Switzerland.,Humanitas University, Department of Biomedical Sciences, 20090, Pieve Emanuele, Milan, Italy
| | - Andrea Cavalli
- Institute for Research in Biomedicine, Università della Svizzera Italiana, CH-6500 Bellinzona, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| |
Collapse
|
46
|
Geng C, Wei J, Wu C. Mammalian STE20-like Kinase 1 Knockdown Attenuates TNFα-Mediated Neurodegenerative Disease by Repressing the JNK Pathway and Mitochondrial Stress. Neurochem Res 2019; 44:1653-1664. [PMID: 30949935 DOI: 10.1007/s11064-019-02791-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 03/28/2019] [Accepted: 04/01/2019] [Indexed: 12/12/2022]
Abstract
Neuroinflammation has been acknowledged as a primary factor contributing to the pathogenesis of neurodegenerative disease. However, the molecular mechanism underlying inflammation stress-mediated neuronal dysfunction is not fully understood. The aim of our study was to explore the influence of mammalian STE20-like kinase 1 (Mst1) in neuroinflammation using TNFα and CATH.a cells in vitro. The results of our study demonstrated that the expression of Mst1 was dose-dependently increased after TNFα treatment. Interestingly, knockdown of Mst1 using siRNA transfection significantly repressed TNFα-induced neuronal death. We also found that TNFα treatment was associated with mitochondrial stress, including mitochondrial ROS overloading, mitochondrial permeability transition pore (mPTP) opening, mitochondrial membrane potential reduction, and mitochondrial pro-apoptotic factor release. Interestingly, loss of Mst1 attenuated TNFα-triggered mitochondrial stress and sustained mitochondrial function in CATH.a cells. We found that Mst1 modulated mitochondrial homeostasis and cell viability via the JNK pathway in a TNFα-induced inflammatory environment. Inhibition of the JNK pathway abolished TNFα-mediated CATH.a cell death and mitochondrial malfunction, similar to the results obtained via silencing of Mst1. Taken together, our results indicate that inflammation-mediated neuronal dysfunction is implicated in Mst1 upregulation, which promotes mitochondrial stress and neuronal death by activating the JNK pathway. Accordingly, our study identifies the Mst1-JNK-mitochondria axis as a novel signaling pathway involved in neuroinflammation.
Collapse
Affiliation(s)
- Chizi Geng
- Neurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China.
| | - Jianchao Wei
- Neurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Chengsi Wu
- Neurology Department, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
47
|
Li J, Li N, Yan S, Lu Y, Miao X, Gu Z, Shao Y. Liraglutide protects renal mesangial cells against hyperglycemia‑mediated mitochondrial apoptosis by activating the ERK‑Yap signaling pathway and upregulating Sirt3 expression. Mol Med Rep 2019; 19:2849-2860. [PMID: 30816450 DOI: 10.3892/mmr.2019.9946] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 01/11/2019] [Indexed: 11/05/2022] Open
Abstract
Diabetic nephropathy results from hyperglycemia‑mediated renal glomerular cell death via mitochondrial apoptosis. There is an emerging requirement for novel approaches with mitochondrial protective effects that alleviate the hyperglycemia‑induced loss of functional cells during diabetic renal damage. Liraglutide, a type of glucagon‑like peptide‑1 agonist, has been suggested to inhibit the progression of obesity and hyperglycemia. However, the contributions and mechanism of action of liraglutide on hyperglycemia‑mediated cell mitochondrial apoptosis in diabetic kidneys have not been illustrated. The present study demonstrated that liraglutide may protect human renal mesangial cells (HRMCs) against hyperglycemia‑induced cell death by inhibiting mitochondrial apoptosis. Liraglutide administration also maintained HRMC viability and promoted HRMC proliferation within a high glucose stress environment. Functional studies demonstrated that hyperglycemia triggered mitochondrial dysfunction, including mitochondrial potential reduction, mitochondrial permeability transition pore opening, reactive oxygen species overproduction and the activation of the mitochondrial apoptotic pathway. However, liraglutide treatment preserved mitochondrial function and prevented activation of mitochondrial apoptosis by upregulating sirtuin 3 (Sirt3) expression. Deletion of Sirt3 abrogated the protective effects of liraglutide on mitochondrial homeostasis following high glucose challenge. In addition, molecular analysis confirmed that liraglutide upregulated Sirt3 via activating the extracellular signal‑regulated kinase‑Yes‑associated protein (ERK‑Yap) signaling pathway. Inhibition of the ERK‑Yap axis negated the action of liraglutide on Sirt3 activation, leading to mitochondrial injury and HRMC apoptosis. Taken together, the present study illustrated that liraglutide protected renal mesangial cells from hyperglycemia‑mediated mitochondrial apoptosis by upregulating Sirt3 expression and activation of the ERK‑Yap signaling pathway.
Collapse
Affiliation(s)
- Jian Li
- Department of Geriatric Endocrinology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Nan Li
- Department of Geriatric Endocrinology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Shuangtong Yan
- Department of Geriatric Endocrinology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Yanhui Lu
- Department of Geriatric Endocrinology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Xinyu Miao
- Department of Geriatric Endocrinology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Zhaoyan Gu
- Department of Geriatric Endocrinology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Yinghong Shao
- Department of Outpatients, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| |
Collapse
|
48
|
Song J, Zhao W, Lu C, Shao X. LATS2 overexpression attenuates the therapeutic resistance of liver cancer HepG2 cells to sorafenib-mediated death via inhibiting the AMPK-Mfn2 signaling pathway. Cancer Cell Int 2019; 19:60. [PMID: 30923462 PMCID: PMC6423758 DOI: 10.1186/s12935-019-0778-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 03/08/2019] [Indexed: 12/21/2022] Open
Abstract
Background Effective therapy for hepatocellular carcinoma (HCC) is currently an imperative issue, and sorafenib is a first-line drug for the treatment of HCC. However, the clinical benefit of sorafenib is often impaired by drug resistance. Accordingly, the present study was conducted to investigate the molecular mechanisms involving sorafenib resistance, with a focus on large tumor suppressor 2 (LATS2) and mitophagy. Methods HepG2 liver cancer cells were treated with sorafenib and infected with adenovirus-loaded LATS2 (Ad-LATS2). Cell death, proliferation and migration were measured via western blotting analysis, immunofluorescence and qPCR. Mitochondrial function and mitophagy were determined via western blotting and immunofluorescence. Results Our data indicated that LATS2 expression was repressed by sorafenib treatment, and overexpression of LATS2 could further enhance sorafenib-mediated apoptosis in HepG2 liver cancer cells. At the molecular level, mitochondrial stress was triggered by sorafenib treatment, as evidenced by decreased mitochondrial membrane potential, increased mitochondrial ROS production, more cyc-c release into the nucleus, and elevated mitochondrial pro-apoptotic proteins. However, in response to mitochondrial damage, mitophagy was activated by sorafenib treatment, whereas LATS2 overexpression effectively inhibited mitophagy activity and thus augmented sorafenib-mediated mitochondrial stress. Subsequently, we also demonstrated that the AMPK–MFN2 signaling pathway was involved in mitophagy regulation after exposure to sorafenib treatment and/or LATS2 overexpression. Inhibition of the AMPK pathway interrupted mitophagy and thus enhanced the antitumor property of sorafenib, similar to the results obtained via overexpression of LATS2. Conclusions Altogether, our findings revealed the importance of the LATS2/AMPK/MFN2/mitophagy axis in understanding sorafenib resistance mechanisms, with a potential application to increase the sensitivity response of sorafenib in the treatment of liver cancer.
Collapse
Affiliation(s)
- Jie Song
- 1Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Wei Zhao
- 2Department of Pharmacy, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Chang Lu
- 3Department of Anesthesiology, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Xue Shao
- 1Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, 130000 China
| |
Collapse
|
49
|
Melatonin enhances TNF-α-mediated cervical cancer HeLa cells death via suppressing CaMKII/Parkin/mitophagy axis. Cancer Cell Int 2019; 19:58. [PMID: 30923460 PMCID: PMC6419493 DOI: 10.1186/s12935-019-0777-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 03/08/2019] [Indexed: 12/11/2022] Open
Abstract
Background Tumor necrosis factor-α (TNF-α) immunotherapy controls the progression of human cervical cancer. Here, we explored the detailed molecular mechanisms played by melatonin in human cervical cancer (HeLa cells) death in the presence of TNF-α injury, with a particular attention to the mitochondrial homeostasis. Methods HeLa cells were incubated with TNFα and then cell death was determined via MTT assay, TUNEL staining, caspase ELISA assay and western blotting. Mitochondrial function was detected via analyzing mitochondrial membrane potential using JC-1 staining, mitochondrial oxidative stress using flow cytometry and mitochondrial apoptosis using western blotting. Results Our data exhibited that treatment with HeLa cells using melatonin in the presence of TNF-α further triggered cancer cell cellular death. Molecular investigation demonstrated that melatonin enhanced the caspase-9 mitochondrion death, repressed mitochondrial potential, increased ROS production, augmented mPTP opening rate and elevated cyt-c expression in the nucleus. Moreover, melatonin application further suppressed mitochondrial ATP generation via reducing the expression of mitochondrial respiratory complex. Mechanistically, melatonin augmented the response of HeLa cells to TNF-α-mediated cancer death via repressing mitophagy. TNF-α treatment activated mitophagy via elevating Parkin expression and excessive mitophagy blocked mitochondrial apoptosis, ultimately alleviating the lethal action of TNF-α on HeLa cell. However, melatonin supplementation could prevent TNF-α-mediated mitophagy activation via inhibiting Parkin in a CaMKII-dependent manner. Interestingly, reactivation of CaMKII abolished the melatonin-mediated mitophagy arrest and HeLa cell death. Conclusions Overall, our data highlight that melatonin enhances TNF-α-induced human cervical cancer HeLa cells mitochondrial apoptosis via inactivating the CaMKII/Parkin/mitophagy axis.
Collapse
|
50
|
Tao X, Sun M, Chen M, Ying R, Su W, Zhang J, Xie X, Wei W, Meng X. HMGB1-modified mesenchymal stem cells attenuate radiation-induced vascular injury possibly via their high motility and facilitation of endothelial differentiation. Stem Cell Res Ther 2019; 10:92. [PMID: 30867070 PMCID: PMC6416980 DOI: 10.1186/s13287-019-1197-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/25/2019] [Accepted: 02/28/2019] [Indexed: 12/28/2022] Open
Abstract
Background Vascular injury is one of the most common detrimental effects of cancer radiotherapy on healthy tissues. Since the efficacy of current preventive and therapeutic strategies remains limited, the exploration of new approaches to treat radiation-induced vascular injury (RIV) is on high demands. The use of mesenchymal stem cells (MSCs) to treat RIV holds great promise thanks to their well-documented function of mediating tissue regeneration after injury. Recently, we genetically modified MSCs with high mobility group box 1 (HMGB1) and demonstrated the high efficacy of these cells in treating graft atherosclerosis. The current study was to investigate the protective effect of HMGB1-modified MSCs (MSC-H) on RIV by using a rat model. Methods Female F344 rats received an intravenous injection of male F344 MSC-H cells or vehicle control at four doses of 2 × 106 cells with a 15-day interval starting from 30 days after irradiation to the abdominal aorta. The aortas were procured for histological and biomedical analysis at 90 days after irradiation. Cell migration to irradiated aortas was traced by green fluorescent protein and sex determination region on the Y chromosome. In vitro cell migration and endothelial differentiation of MSC-H cells were analyzed by stromal-derived factor 1-induced transwell assay and RNA microarray, respectively. The contribution of extracellular HMGB1 to the bioactivity of MSC-H cells was investigated by inhibition experiments with HMGB1 antibody. Result MSC-H cell infusion alleviated neointimal formation, vascular inflammation, and fibrosis in irradiated aortas, which was associated with local migration and endothelial differentiation of MSC-H cells. The MSC-H cells showed high motility and potential of endothelial differentiation in vitro. Microarray analysis suggested multiple pathways like MAPK and p53 signaling were activated during endothelial differentiation. MSC-H cells highly expressed CXC chemokine receptor 4 and migrated progressively after stromal-derived factor 1 stimulation, which was blocked by the antagonist of CXC chemokine receptor 4. Finally, the migration and endothelial differentiation of MSC-H cells were inhibited by HMGB1 antibody. Conclusion MSC-H cell infusion significantly attenuated RIV, which was associated with their high motility and endothelial differentiation potential. Multiple pathways that possibly contributed to the efficacy of MSC-H cells were suggested and deserved further investigation. Electronic supplementary material The online version of this article (10.1186/s13287-019-1197-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Xuan Tao
- Division of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Mingyang Sun
- Division of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Min Chen
- Department of Gastroenterology, Nanjing University Medical School, Nanjing Drum Tower Hospital, Nanjing, China
| | - Rongchao Ying
- Department of Gastroenterological Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenjie Su
- Department of Gastroenterological Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jian Zhang
- Department of Gastroenterological Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaodong Xie
- Division of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Wei
- Division of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China. .,Department of Gastroenterological Surgery, Hangzhou First People's Hospital, Nanjing Medical University, Hangzhou, China.
| | - Xiaohu Meng
- Division of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| |
Collapse
|