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Zhang Y, Wu D, Sun Q, Luo Z, Zhang Y, Wang B, Chen W. Atorvastatin combined with imipenem alleviates lung injury in sepsis by inhibiting neutrophil extracellular trap formation via the ERK/NOX2 signaling pathway. Free Radic Biol Med 2024; 220:179-191. [PMID: 38704053 DOI: 10.1016/j.freeradbiomed.2024.05.006] [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: 02/05/2024] [Revised: 04/25/2024] [Accepted: 05/02/2024] [Indexed: 05/06/2024]
Abstract
Sepsis is a systemic inflammatory response syndrome caused by the invasion of pathogenic microorganisms. Despite major advances in diagnosis and technology, morbidity and mortality remain high. The level of neutrophil extracellular traps (NETs) is closely associated with the progression and prognosis of sepsis, suggesting the regulation of NET formation as a new strategy in sepsis treatment. Owing to its pleiotropic effects, atorvastatin, a clinical lipid-lowering drug, affects various aspects of sepsis-related inflammation and immune responses. To align closely with clinical practice, we combined it with imipenem for the treatment of sepsis. In this study, we used a cecum ligation and puncture-induced lung injury mouse model and employed techniques including western blot, immunofluorescence, and enzyme-linked immunosorbent assay to measure the levels of NETs and other sepsis-related lung injury indicators. Our findings indicate that atorvastatin effectively inhibited the formation of NETs. When combined with imipenem, it significantly alleviated lung injury, reduced systemic inflammation, and improved the 7-day survival rate of septic mice. Additionally, we explored the inhibitory mechanism of atorvastatin on NET formation in vitro, revealing its potential action through the ERK/NOX2 pathway. Therefore, atorvastatin is a potential immunomodulatory agent that may offer new treatment strategies for patients with sepsis in clinical settings.
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Affiliation(s)
- Yue Zhang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, The Key Laboratory of Precision Anesthesia & Perioperative Organ Protection, Guangzhou, Guangdong, 510515, China.
| | - Di Wu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, The Key Laboratory of Precision Anesthesia & Perioperative Organ Protection, Guangzhou, Guangdong, 510515, China.
| | - Qishun Sun
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, The Key Laboratory of Precision Anesthesia & Perioperative Organ Protection, Guangzhou, Guangdong, 510515, China.
| | - Zhen Luo
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, The Key Laboratory of Precision Anesthesia & Perioperative Organ Protection, Guangzhou, Guangdong, 510515, China.
| | - Yuhao Zhang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, The Key Laboratory of Precision Anesthesia & Perioperative Organ Protection, Guangzhou, Guangdong, 510515, China.
| | - Bowei Wang
- Department of Orthopedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.
| | - Wenting Chen
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, The Key Laboratory of Precision Anesthesia & Perioperative Organ Protection, Guangzhou, Guangdong, 510515, China.
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Wang P, Zheng L, Qi X, Wang H, Zhang R, Song L, Chen R, Yan S, Chang W, Hu J, Wang Y, Jin H, Shi Y, Wu Z, Zhao W, Shi P, Tian Q, Xing M, Dong H. Contribution of FOS in neutrophils to venous thromboembolism via miR-144 based on bioinformatic prediction and validation. J Cell Mol Med 2024; 28:e18370. [PMID: 38818568 PMCID: PMC11140234 DOI: 10.1111/jcmm.18370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 06/01/2024] Open
Abstract
The Finkel-Biskis-Jinkins Osteosarcoma (c-Fos; encoded by FOS) plays an important role in several cardiovascular diseases, including atherosclerosis and stroke. However, the relationship between FOS and venous thromboembolism (VTE) remains unknown. We identified differentially expressed genes in Gene Expression Omnibus dataset, GSE48000, comprising VTE patients and healthy individuals, and analysed them using CIBERSORT and weighted co-expression network analysis (WGCNA). FOS and CD46 expressions were significantly downregulated (FOS p = 2.26E-05, CD64 p = 8.83E-05) and strongly linked to neutrophil activity in VTE. We used GSE19151 and performed PCR to confirm that FOS and CD46 had diagnostic potential for VTE; however, only FOS showed differential expression by PCR and ELISA in whole blood samples. Moreover, we found that hsa-miR-144 which regulates FOS expression was significantly upregulated in VTE. Furthermore, FOS expression was significantly downregulated in neutrophils of VTE patients (p = 0.03). RNA sequencing performed on whole blood samples of VTE patients showed that FOS exerted its effects in VTE via the leptin-mediated adipokine signalling pathway. Our results suggest that FOS and related genes or proteins can outperform traditional clinical markers and may be used as diagnostic biomarkers for VTE.
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Affiliation(s)
- Ping Wang
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Lin Zheng
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Xiaotong Qi
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Heng Wang
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Ruijing Zhang
- Department of NephrologyThe Second Hospital of Shanxi Medical UniversityTaiyuanChina
| | - Liying Song
- Thyroid surgery departmentFirst Hospital of Shanxi Medical UniversityTaiyuanChina
| | | | - Sheng Yan
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Wenkai Chang
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Jie Hu
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Yuwen Wang
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Haijiang Jin
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Yongbin Shi
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Zhihui Wu
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Wenbo Zhao
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Peilu Shi
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Qinqin Tian
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Miao Xing
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
| | - Honglin Dong
- Department of Vascular Surgery, The Second HospitalShanxi Medical UniversityTaiyuanChina
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Dos Ramos Almeida CJL, Veras FP, Paiva IM, Schneider AH, da Costa Silva J, Gomes GF, Costa VF, Silva BMS, Caetite DB, Silva CMS, Salina ACG, Martins R, Bonilha CS, Cunha LD, Jamur MC, da Silva LLP, Arruda E, Zamboni DS, Louzada-Junior P, de Oliveira RDR, Alves-Filho JC, Cunha TM, de Queiroz Cunha F. Neutrophil Virucidal Activity Against SARS-CoV-2 Is Mediated by Neutrophil Extracellular Traps. J Infect Dis 2024; 229:1352-1365. [PMID: 38015657 DOI: 10.1093/infdis/jiad526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 11/10/2023] [Accepted: 11/27/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND Inflammation in the lungs and other vital organs in COVID-19 is characterized by the presence of neutrophils and a high concentration of neutrophil extracellular traps (NETs), which seems to mediate host tissue damage. However, it is not known whether NETs could have virucidal activity against SARS-CoV-2. METHODS We investigated whether NETs could prevent SARS-CoV-2 replication in neutrophils and epithelial cells and what the consequence of NETs degradation would be in K18-humanized ACE2 transgenic mice infected with SARS-CoV-2. RESULTS Here, by immunofluorescence microscopy, we observed that viral particles colocalize with NETs in neutrophils isolated from patients with COVID-19 or healthy individuals and infected in vitro. The inhibition of NETs production increased virus replication in neutrophils. In parallel, we observed that NETs inhibited virus abilities to infect and replicate in epithelial cells after 24 hours of infection. Degradation of NETs with DNase I prevented their virucidal effect in vitro. Using K18-humanized ACE2 transgenic mice, we observed a higher viral load in animals treated with DNase I. However, the virucidal effect of NETs was not dependent on neutrophil elastase or myeloperoxidase activity. CONCLUSIONS Our results provide evidence of the role of NETosis as a mechanism of SARS-CoV-2 viral capture and inhibition.
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Affiliation(s)
| | - Flávio Protásio Veras
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto
| | - Isadora Marques Paiva
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | - Ayda Henriques Schneider
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | - Juliana da Costa Silva
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | - Giovanni Freitas Gomes
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | - Victor Ferreira Costa
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | | | - Diego Brito Caetite
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | | | | | - Ronaldo Martins
- Department of Cellular and Molecular Biology and Pathogenic Bioagents
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Caio Santos Bonilha
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | | | - Maria Célia Jamur
- Department of Cellular and Molecular Biology and Pathogenic Bioagents
| | - Luís Lamberti Pinto da Silva
- Department of Cellular and Molecular Biology and Pathogenic Bioagents
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | - Eurico Arruda
- Department of Cellular and Molecular Biology and Pathogenic Bioagents
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Brazil
| | | | - Paulo Louzada-Junior
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | | | - José Carlos Alves-Filho
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | - Thiago Mattar Cunha
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
| | - Fernando de Queiroz Cunha
- Center for Research in Inflammatory Diseases
- Department of Pharmacology, Ribeirão Preto Medical School
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Mo S, Wu W, Luo K, Huang C, Wang Y, Qin H, Cai H. Identification and analysis of chemokine-related and NETosis-related genes in acute pancreatitis to develop a predictive model. Front Genet 2024; 15:1389936. [PMID: 38784040 PMCID: PMC11112067 DOI: 10.3389/fgene.2024.1389936] [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: 02/22/2024] [Accepted: 04/17/2024] [Indexed: 05/25/2024] Open
Abstract
Background: Chemokines and NETosis are significant contributors to the inflammatory response, yet there still needs to be a more comprehensive understanding regarding the specific molecular characteristics and interactions of NETosis and chemokines in the context of acute pancreatitis (AP) and severe AP (SAP). Methods: To address this gap, the mRNA expression profile dataset GSE194331 was utilized for analysis, comprising 87 AP samples (77 non-SAP and 10 SAP) and 32 healthy control samples. Enrichment analyses were conducted for differentially expressed chemokine-related genes (DECRGs) and NETosis-related genes (DENRGs). Three machine-learning algorithms were used for the identification of signature genes, which were subsequently utilized in the development and validation of nomogram diagnostic models for the prediction of AP and SAP. Furthermore, single-gene Gene Set Enrichment Analysis (GSEA) and Gene Set Variation Analysis (GSVA) were performed. Lastly, an interaction network for the identified signature genes was constructed. Results: We identified 12 DECRGs and 7 DENRGs, and enrichment analyses indicated they were primarily enriched in cytokine-cytokine receptor interaction, chemokine signaling pathway, TNF signaling pathway, and T cell receptor signaling pathway. Moreover, these machine learning algorithms finally recognized three signature genes (S100A8, AIF1, and IL18). Utilizing the identified signature genes, we developed nomogram models with high predictive accuracy for AP and differentiation of SAP from non-SAP, as demonstrated by area under the curve (AUC) values of 0.968 (95% CI 0.937-0.990) and 0.862 (95% CI 0.742-0.955), respectively, in receiver operating characteristic (ROC) curve analysis. Subsequent single-gene GESA and GSVA indicated a significant positive correlation between these signature genes and the proteasome complex. At the same time, a negative association was observed with the Th1 and Th2 cell differentiation signaling pathways. Conclusion: We have identified three genes (S100A8, AIF1, and IL18) related to chemokines and NETosis, and have developed accurate diagnostic models that might provide a novel method for diagnosing AP and differentiating between severe and non-severe cases.
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Affiliation(s)
- Shuangyang Mo
- Gastroenterology Department, Liuzhou People’s Hospital Affiliated to Guangxi Medical University, Liuzhou, China
| | - Wenhong Wu
- Gastroenterology Department, Liuzhou People’s Hospital Affiliated to Guangxi Medical University, Liuzhou, China
| | - Kai Luo
- Department of Critical Care Medicine, Liuzhou People’s Hospital Affiliated to Guangxi Medical University, Liuzhou, China
| | - Cheng Huang
- Oncology Department, Liuzhou People’s Hospital Affiliated to Guangxi Medical University, Liuzhou, China
| | - Yingwei Wang
- Gastroenterology Department, Liuzhou People’s Hospital Affiliated to Guangxi Medical University, Liuzhou, China
| | - Heping Qin
- Gastroenterology Department, Liuzhou People’s Hospital Affiliated to Guangxi Medical University, Liuzhou, China
| | - Huaiyang Cai
- Gastroenterology Department, Liuzhou People’s Hospital Affiliated to Guangxi Medical University, Liuzhou, China
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Kwak SB, Kim SJ, Kang YJ, Lee WW, Huh J, Park JW. Development of a rectally administrable Dnase1 to treat septic shock by targeting NETs. Life Sci 2024; 342:122526. [PMID: 38417543 DOI: 10.1016/j.lfs.2024.122526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/11/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
AIMS Neutrophil extracellular trap (NET), which is formed by DNA threads, induces septic shock by aggravating systemic inflammation. An intravenous administration of deoxyribonuclease is regarded as a compelling modality for treating septic shock. However, alternative routes should be chosen when cutaneous veins are all collapsed due to hypotension. In this study, we genetically engineered this enzyme to develop a rectal suppository formulation to treat septic shock. MAIN METHODS Dnase1 was mutated at two amino acid residues to increase its stability in the blood and fused with a cell-penetrating peptide CR8 to increase its absorption through the rectal mucosa, which is designated AR-CR8. The life-saving effect of AR-CR8 was evaluated in a LPS-induced shock mouse model. KEY FINDINGS AR-CR8 was shown to remove NETs effectively in human neutrophils. When AR-CR8 was administered to the mouse rectum, the deoxyribonuclease activity in the mouse serum was significantly increased. In the LPS-induced shock model, 90 % of the control mice died over 72 h after LPS injection. In contrast, the rectal administration of AR-CR8 showed a mortality rate of 30 % by 72 h after LPS injection. The Log-rank test revealed that the survival rate is significantly higher in the AR-CR8 group. The NET markers in the mouse serum were enhanced by LPS, and significantly downregulated in the AR-CR8 group. These results suggest that AR-CR8 ameliorates LPS-induced shock by degrading NETs. SIGNIFICANCE The engineered DNASE1 could be developed as a rectal suppository formulation to treat septic shock urgently at out-of-hospital places where no syringe is available.
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Affiliation(s)
- Su-Bin Kwak
- Department of Pharmacology, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea
| | - Sang-Jin Kim
- Department of Pharmacology, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea
| | - Yeon Jun Kang
- Laboratory of Autoimmunity and Inflammation, Department of Biomedical Sciences, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea; Department of Microbiology and Immunology, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea
| | - Won-Woo Lee
- Laboratory of Autoimmunity and Inflammation, Department of Biomedical Sciences, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea; Department of Microbiology and Immunology, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea
| | - June Huh
- Department of Chemical and Biological Engineering, Korea University, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jong-Wan Park
- Department of Pharmacology, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea; Department of Biomedical Science, BK21-plus education program, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea; Cancer Research Institute and Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Daehak-ro 103, Jongno-gu, Seoul 03080, Republic of Korea.
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6
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Colón DF, Wanderley CW, Turato WM, Borges VF, Franchin M, Castanheira FVS, Nascimento D, Prado D, Haruo Fernandes de Lima M, Volpon LC, Kavaguti SK, Carlotti AP, Carmona F, Franklin BS, Cunha TM, Alves-Filho JC, Cunha FQ. Paediatric sepsis survivors are resistant to sepsis-induced long-term immune dysfunction. Br J Pharmacol 2024; 181:1308-1323. [PMID: 37990806 DOI: 10.1111/bph.16286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 07/19/2023] [Accepted: 08/17/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND AND PURPOSE Sepsis-surviving adult individuals commonly develop immunosuppression and increased susceptibility to secondary infections, an outcome mediated by the axis IL-33/ILC2s/M2 macrophages/Tregs. Nonetheless, the long-term immune consequences of paediatric sepsis are indeterminate. We sought to investigate the role of age in the genesis of immunosuppression following sepsis. EXPERIMENTAL APPROACH Here, we compared the frequency of Tregs, the activation of the IL-33/ILC2s axis in M2 macrophages and the DNA methylation of epithelial lung cells from post-septic infant and adult mice. Likewise, sepsis-surviving mice were inoculated intranasally with Pseudomonas aeruginosa or by subcutaneous inoculation of the B16 melanoma cell line. Finally, blood samples from sepsis-surviving patients were collected and the concentration of IL-33 and Tregs frequency were assessed. KEY RESULTS In contrast to 6-week-old mice, 2-week-old mice were resistant to secondary infection and did not show impairment in tumour controls upon melanoma challenge. Mechanistically, increased IL-33 levels, Tregs expansion, and activation of ILC2s and M2-macrophages were observed in 6-week-old but not 2-week-old post-septic mice. Moreover, impaired IL-33 production in 2-week-old post-septic mice was associated with increased DNA methylation in lung epithelial cells. Notably, IL-33 treatment boosted the expansion of Tregs and induced immunosuppression in 2-week-old mice. Clinically, adults but not paediatric post-septic patients exhibited higher counts of Tregs and seral IL-33 levels. CONCLUSION AND IMPLICATIONS These findings demonstrate a crucial and age-dependent role for IL-33 in post-sepsis immunosuppression. Thus, a better understanding of this process may lead to differential treatments for adult and paediatric sepsis.
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Affiliation(s)
- David F Colón
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Departments of Biochemistry and Immunology, University of São Paulo, Ribeirão Preto, Brazil
| | - Carlos W Wanderley
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Department of Pharmacology, University of São Paulo, Ribeirão Preto, Brazil
| | - Walter M Turato
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
| | - Vanessa F Borges
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Department of Pharmacology, University of São Paulo, Ribeirão Preto, Brazil
| | - Marcelo Franchin
- School of Dentistry, Alfenas Federal University, Alfenas, Brazil
| | | | - Daniele Nascimento
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Departments of Biochemistry and Immunology, University of São Paulo, Ribeirão Preto, Brazil
| | - Douglas Prado
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Department of Pharmacology, University of São Paulo, Ribeirão Preto, Brazil
| | - Mikhael Haruo Fernandes de Lima
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Departments of Biochemistry and Immunology, University of São Paulo, Ribeirão Preto, Brazil
| | - Leila C Volpon
- Department of Pediatrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Silvia K Kavaguti
- Department of Pediatrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Ana P Carlotti
- Physiology & Pharmacology Calgary, University of Calgary, Calgary, Canada
| | - Fabio Carmona
- Department of Pediatrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Bernardo S Franklin
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
| | - Thiago M Cunha
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Department of Pharmacology, University of São Paulo, Ribeirão Preto, Brazil
| | - Jose Carlos Alves-Filho
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Departments of Biochemistry and Immunology, University of São Paulo, Ribeirão Preto, Brazil
| | - Fernando Q Cunha
- Center of Research in Inflammatory Diseases (CRID), University of São Paulo, Ribeirão Preto, Brazil
- Department of Pharmacology, University of São Paulo, Ribeirão Preto, Brazil
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7
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Bertolotto M, Verzola D, Contini P, de Totero D, Tirandi A, Ramoni D, Ministrini S, Giacobbe DR, Bonaventura A, Vecchié A, Castellani L, Mirabella M, Arboscello E, Liberale L, Viazzi F, Bassetti M, Montecucco F, Carbone F. Osteopontin is associated with neutrophil extracellular trap formation in elderly patients with severe sepsis. Eur J Clin Invest 2024; 54:e14159. [PMID: 38264915 DOI: 10.1111/eci.14159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 01/25/2024]
Affiliation(s)
- Maria Bertolotto
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Daniela Verzola
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Paola Contini
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Daniela de Totero
- Molecular Pathology Unit IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Amedeo Tirandi
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Davide Ramoni
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Stefano Ministrini
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
| | - Daniele Roberto Giacobbe
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Aldo Bonaventura
- Medicina Generale 1, Medical Center, Ospedale di Circolo e Fondazione Macchi, ASST Sette Laghi, Varese, Italy
| | - Alessandra Vecchié
- Medicina Generale 1, Medical Center, Ospedale di Circolo e Fondazione Macchi, ASST Sette Laghi, Varese, Italy
| | | | | | | | - Luca Liberale
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa, Italian Cardiovascular Network, Genoa, Italy
| | - Francesca Viazzi
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Clinic of Nephrology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Matteo Bassetti
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Fabrizio Montecucco
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa, Italian Cardiovascular Network, Genoa, Italy
| | - Federico Carbone
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa, Italian Cardiovascular Network, Genoa, Italy
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8
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Zhang J, Wang X, Peng Y, Wei J, Luo Y, Luan F, Li H, Zhou Y, Wang C, Yu K. Combined metabolomic and proteomic analysis of sepsis related acute liver injury and its pathogenesis research. Int Immunopharmacol 2024; 130:111666. [PMID: 38412671 DOI: 10.1016/j.intimp.2024.111666] [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: 09/23/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Sepsis-induced acute liver injury is common in patients in intensive care units. However, the exact mechanism of this condition remains unclear. The purpose of this study was to investigate the roles and mechanisms of proteins and metabolites in the liver tissue of mice after sepsis and elucidate the molecular biological mechanisms of sepsis-related liver injury. METHODS First, a lipopolysaccharide (LPS)-induced sepsis mouse model was established. Then, according to alanine aminotransferase (ALT) and aspartate aminotransferase (AST) detection in mouse serum and liver histopathological examination (HE) staining, the septic mice were divided into two groups: acute liver injury after sepsis and nonacute liver injury after sepsis. Metabolomics and proteomic analyses were performed on the liver tissues of the two groups of mice to identify significantly different metabolites and proteins. The metabolomics and proteomics results were further analysed to identify the biological indicators and pathogenesis related to the occurrence and development of sepsis-related acute liver injury at the protein and metabolite levels. RESULTS A total of 14 differentially expressed proteins and 46 differentially expressed metabolites were identified. Recombinant Erythrocyte Membrane Protein Band 4.2 (Epb42) and adenosine diphosphate (ADP) may be the key proteins and metabolites responsible for sepsis-related acute liver injury, according to the correlation analysis of proteomics and metabolomics. The expression of the differential protein Epb42 was further verified by western blot (WB) detection. CONCLUSIONS Our study suggests that the differential protein Epb42 may be key proteins causing sepsis-associated acute liver injury, providing new and valuable information on the possible mechanism of sepsis-associated acute liver injury.
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Affiliation(s)
- Jin Zhang
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China; Department of Critical Care Medicine, Qingdao Municipal Hospital, University of Health and Rehabilitation Sciences, 1 Jiaozhou Road, Shibei District, Qingdao 266011, Shandong, China
| | - Xibo Wang
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China
| | - Yahui Peng
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China
| | - Jieling Wei
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China
| | - Yinghao Luo
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China
| | - Feiyu Luan
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China
| | - Hongxu Li
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, 150 Haping Road, Nangang District, Harbin 150081, Heilongjiang, China
| | - Yang Zhou
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China
| | - Changsong Wang
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China.
| | - Kaijiang Yu
- Department of Critical Care Medicine, First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Nangang District, Harbin 150001, Heilongjiang, China.
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Ma H, Yao W, Peng B, Liu X, Chen J, Lin Y, Di T, Li P, He X. Mercury-containing preparations attenuate neutrophil extracellular trap formation in mice and humans through inhibiting the ERK1/2 pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117421. [PMID: 37979820 DOI: 10.1016/j.jep.2023.117421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/30/2023] [Accepted: 11/11/2023] [Indexed: 11/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Neutrophil extracellular trap (NET) formation plays a crucial role in wound healing disorders, including chronic skin ulcers and diabetic foot ulcers (DFUs). Over the years, traditional Chinese topical medications, such as Cinnabar (composed of HgS and soluble mercury salt) and hydrargyria oxydum rubrum (containing HgO and soluble mercury salt), have been utilized for treating these ailments. Nevertheless, the fundamental processes remain mostly ambiguous. AIM OF THE STUDY This study sought to investigate the potential effects of topical mercury-containing preparations on the process of NET formation. MATERIALS AND METHODS Neutrophils isolated from healthy individuals and mouse models of type 1 and type 2 diabetes were cultured with phorbol 12-myristate 13-acetate (PMA), both with and without the mercury-containing preparations (MCP). The formation of NETs was monitored using confocal and scanning electron microscopes. Immunofluorescence and fluorescent probes were employed to assess the levels of citrulline histone H3 (Cit-H3) and intracellular reactive oxygen species (ROS), respectively. The impact of MCP extracts on cytokine expression, peptidylarginine deiminase 4 (PAD4), and myeloperoxidase (MPO) was measured through Luminex and ELISA assays. Phagocytosis of human neutrophils was analyzed using Flow Cytometry. Finally, the phosphorylation levels of ERK were detected by western blotting. RESULTS Treatment with MCP led to a reduction in PAD4, Cit-H3, and MPO expressions in neutrophils, consequently inhibiting PMA-induced NET formation. MCP treatment also dampened ERK1/2 activation in neutrophils. Furthermore, MCP exhibited inhibitory effects on the secretion of the cytokine IL-8 and ROS production while enhancing neutrophil phagocytosis. CONCLUSION Our findings suggest that MCP can mitigate the release of NETs, likely by suppressing the ERK1/2 signaling pathway.
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Affiliation(s)
- Huike Ma
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China
| | - Wentao Yao
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China
| | - Bing Peng
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China
| | - Xin Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China
| | - Jia Chen
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China
| | - Yan Lin
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China
| | - Tingting Di
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China
| | - Ping Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China.
| | - Xiujuan He
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100010, China.
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10
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Singh R, Kumawat M, Gogoi H, Madhyastha H, Lichtfouse E, Daima HK. Engineered Nanomaterials for Immunomodulation: A Review. ACS APPLIED BIO MATERIALS 2024; 7:727-751. [PMID: 38166376 DOI: 10.1021/acsabm.3c00940] [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: 01/04/2024]
Abstract
The immune system usually provides a defense against invading pathogenic microorganisms and any other particulate contaminants. Nonetheless, it has been recently reported that nanomaterials can evade the immune system and modulate immunological responses due to their unique physicochemical characteristics. Consequently, nanomaterial-based activation of immune components, i.e., neutrophils, macrophages, and other effector cells, may induce inflammation and alter the immune response. Here, it is essential to distinguish the acute and chronic modulations triggered by nanomaterials to determine the possible risks to human health. Nanomaterials size, shape, composition, surface charge, and deformability are factors controlling their uptake by immune cells and the resulting immune responses. The exterior corona of molecules adsorbed over nanomaterials surfaces also influences their immunological effects. Here, we review current nanoengineering trends for targeted immunomodulation with an emphasis on the design, safety, and potential toxicity of nanomaterials. First, we describe the characteristics of engineered nanomaterials that trigger immune responses. Then, the biocompatibility and immunotoxicity of nanoengineered particles are debated, because these factors influence applications. Finally, future nanomaterial developments in terms of surface modifications, synergistic approaches, and biomimetics are discussed.
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Affiliation(s)
| | - Mamta Kumawat
- Department of Biotechnology, School of Sciences, JECRC University, Sitapura Extension, Jaipur 303905, Rajasthan, India
| | - Himanshu Gogoi
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad 121001, India
| | - Harishkumar Madhyastha
- Department of Cardiovascular Physiology, University of Miyazaki, Miyazaki 8891692, Japan
| | - Eric Lichtfouse
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University Xi'an, Shaanxi 710049, China
| | - Hemant Kumar Daima
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Bandarsindari 305817, Ajmer, India
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11
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Shen B, Shen Q, Zeng Q, Zhang L, Li X. Silenced-C5ar1 improved multiple organ injury in sepsis rats via inhibiting neutrophil extracellular trap. J Mol Histol 2024; 55:69-81. [PMID: 38165570 PMCID: PMC10830609 DOI: 10.1007/s10735-023-10172-3] [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: 03/16/2023] [Accepted: 10/21/2023] [Indexed: 01/04/2024]
Abstract
Sepsis has a systemic inflammatory response syndrome caused by infection. While neutrophils play contradictory roles in different stages of sepsis. Neutrophils have been proven to play an antibacterial role by producing neutrophil extracellular traps (NETs). Although the NET is beneficial to bacteria resistance, abnormal NET increases tissue damage. The complement C5a receptor 1 (C5ar1) is a gene related to strong inflammatory reactions and is found to be associated with inflammatory factors. This study found that there were 45 down-regulated genes and 704 up-regulated genes in sepsis rats by transcriptome sequencing. And those genes were significantly related to inflammation and immunity by GO and KEGG enrichment analysis involving the chemokine signaling pathway, the Toll-like receptor (TLR) signaling pathway, and the Fc gamma R-mediated phagocytosis. Additionally, the C5ar1 gene was significantly upregulated with interesting potential in sepsis and used for further study. This study used cecum ligation and puncture (CLP) rats that were respectively injected intravenously with PBS or the lentivirus vector to explore the effect of C5ar1 on CLP rats. It demonstrated that silenced- C5ar1 inhibited the ALT, AST, BUN, and CREA levels, improved the lung and spleen injury, and reduced the TNF-α, IL-6, IL-1β, IL-10, cf-DNA, and cfDNA/MPO levels. Additionally, silenced C5ar1 inhibited the TLR2, TLR4, and peptidylarginine deiminase 4 expression levels, which suggested the improvement of silenced C5ar1 on sepsis via inhibiting NETs and the TLR signaling pathway. This study provides a basis and new direction for the study of treatment on sepsis.
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Affiliation(s)
- Bin Shen
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou, 313000, China
| | - Qikai Shen
- Department of Intensive Care Units, Huzhou Central Hospital, Huzhou, 313000, China
| | - Qingqiu Zeng
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou, 313000, China
| | - Lingyan Zhang
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou, 313000, China
| | - Xiaofeng Li
- Department of Infectious Diseases, Huzhou Central Hospital, Huzhou, 313000, China.
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12
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Bleuzé M, Lavoie JP, Bédard C, Gottschalk M, Segura M. Encapsulated Streptococcus suis impairs optimal neutrophil functions which are not rescued by priming with colony-stimulating factors. PLoS One 2024; 19:e0296844. [PMID: 38261585 PMCID: PMC10805302 DOI: 10.1371/journal.pone.0296844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 12/19/2023] [Indexed: 01/25/2024] Open
Abstract
The porcine pathogen and zoonotic agent Streptococcus suis induces an exacerbated inflammation in the infected hosts that leads to sepsis, meningitis, and sudden death. Several virulence factors were described for S. suis of which the capsular polysaccharide (CPS) conceals it from the immune system, and the suilysin exhibits cytotoxic activity. Although neutrophils are recruited rapidly upon S. suis infection, their microbicidal functions appear to be poorly activated against the bacteria. However, during disease, the inflammatory environment could promote neutrophil activation as mediators such as the granulocyte colony-stimulating factor granulocyte (G-CSF) and the granulocyte-macrophages colony-stimulating factor (GM-CSF) prime neutrophils and enhance their responsiveness to bacterial detection. Thus, we hypothesized that CPS and suilysin prevent an efficient activation of neutrophils by S. suis, but that G-CSF and GM-CSF rescue neutrophil activation, leading to S. suis elimination. We evaluated the functions of porcine neutrophils in vitro in response to S. suis and investigated the role of the CPS and suilysin on cell activation using isogenic mutants of the bacteria. We also studied the influence of G-CSF and GM-CSF on neutrophil response to S. suis by priming the cells with recombinant proteins. Our study confirmed that CPS prevents S. suis-induced activation of most neutrophil functions but participates in the release of neutrophil-extracellular traps (NETs). Priming with G-CSF did not influence cell activation, but GM-CSF strongly promote IL-8 release, indicating its involvement in immunomodulation. However, priming did not enhance microbicidal functions. Studying the interaction between S. suis and neutrophils-first responders in host defense-remains fundamental to understand the immunopathogenesis of the infection and to develop therapeutical strategies related to neutrophils' defense against this bacterium.
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Affiliation(s)
- Marêva Bleuzé
- Faculty of Veterinary Medicine, Research Group on Infectious Diseases in Production Animals (GREMIP) & Swine and Poultry Infectious Diseases Research Center (CRIPA), Université de Montréal, St-Hyacinthe, Quebec, Canada
| | - Jean-Pierre Lavoie
- Faculty of Veterinary Medicine, Department of Clinical Sciences, Université de Montréal, St-Hyacinthe, Quebec, Canada
| | - Christian Bédard
- Faculty of Veterinary Medicine, Department of Pathology and Microbiology, Université de Montréal, St-Hyacinthe, Quebec, Canada
| | - Marcelo Gottschalk
- Faculty of Veterinary Medicine, Research Group on Infectious Diseases in Production Animals (GREMIP) & Swine and Poultry Infectious Diseases Research Center (CRIPA), Université de Montréal, St-Hyacinthe, Quebec, Canada
| | - Mariela Segura
- Faculty of Veterinary Medicine, Research Group on Infectious Diseases in Production Animals (GREMIP) & Swine and Poultry Infectious Diseases Research Center (CRIPA), Université de Montréal, St-Hyacinthe, Quebec, Canada
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13
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Hang Y, Qu H, Yang J, Li Z, Ma S, Tang C, Wu C, Bao Y, Jiang F, Shu J. Exploration of programmed cell death-associated characteristics and immune infiltration in neonatal sepsis: new insights from bioinformatics analysis and machine learning. BMC Pediatr 2024; 24:67. [PMID: 38245687 PMCID: PMC10799360 DOI: 10.1186/s12887-024-04555-y] [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: 04/17/2023] [Accepted: 01/11/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Neonatal sepsis, a perilous medical situation, is typified by the malfunction of organs and serves as the primary reason for neonatal mortality. Nevertheless, the mechanisms underlying newborn sepsis remain ambiguous. Programmed cell death (PCD) has a connection with numerous infectious illnesses and holds a significant function in newborn sepsis, potentially serving as a marker for diagnosing the condition. METHODS From the GEO public repository, we selected two groups, which we referred to as the training and validation sets, for our analysis of neonatal sepsis. We obtained PCD-related genes from 12 different patterns, including databases and published literature. We first obtained differential expressed genes (DEGs) for neonatal sepsis and controls. Three advanced machine learning techniques, namely LASSO, SVM-RFE, and RF, were employed to identify potential genes connected to PCD. To further validate the results, PPI networks were constructed, artificial neural networks and consensus clustering were used. Subsequently, a neonatal sepsis diagnostic prediction model was developed and evaluated. We conducted an analysis of immune cell infiltration to examine immune cell dysregulation in neonatal sepsis, and we established a ceRNA network based on the identified marker genes. RESULTS Within the context of neonatal sepsis, a total of 49 genes exhibited an intersection between the differentially expressed genes (DEGs) and those associated with programmed cell death (PCD). Utilizing three distinct machine learning techniques, six genes were identified as common to both DEGs and PCD-associated genes. A diagnostic model was subsequently constructed by integrating differential expression profiles, and subsequently validated by conducting artificial neural networks and consensus clustering. Receiver operating characteristic (ROC) curves were employed to assess the diagnostic merit of the model, which yielded promising results. The immune infiltration analysis revealed notable disparities in patients diagnosed with neonatal sepsis. Furthermore, based on the identified marker genes, the ceRNA network revealed an intricate regulatory interplay. CONCLUSION In our investigation, we methodically identified six marker genes (AP3B2, STAT3, TSPO, S100A9, GNS, and CX3CR1). An effective diagnostic prediction model emerged from an exhaustive analysis within the training group (AUC 0.930, 95%CI 0.887-0.965) and the validation group (AUC 0.977, 95%CI 0.935-1.000).
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Affiliation(s)
- Yun Hang
- Department of Pediatrics, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Huanxia Qu
- Department of Blood Transfusion, Zhenjiang First People's Hospital, Zhenjiang, China
| | - Juanzhi Yang
- Department of Pediatrics, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Zhang Li
- Department of Pediatrics, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Shiqi Ma
- Department of Pediatrics, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Chenlu Tang
- Department of Pediatrics, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Chuyan Wu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yunlei Bao
- Department of Neonatology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200011, China
| | - Feng Jiang
- Department of Neonatology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200011, China.
| | - Jin Shu
- Department of Pediatrics, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China.
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14
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Li Z, Yuan T. Neutrophil extracellular traps in adult diseases and neonatal bacterial infectious diseases: A review. Heliyon 2024; 10:e23559. [PMID: 38173520 PMCID: PMC10761809 DOI: 10.1016/j.heliyon.2023.e23559] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/06/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024] Open
Abstract
Neutrophils, the most abundant type of white blood cells, are pivotal in fighting bacterial infections due to their immunological and anti-infection capabilities. In recent years, scientists have discovered a novel mechanism known as neutrophil extracellular traps, which are fibrous networks primarily released by neutrophils that combat bacterial infections. There is a growing interest in studying NETs and their role in human infectious diseases, particularly in neonates susceptible to bacterial infections. NETs and their components have been found in various samples from neonatal-infected patients, providing a new route for early diagnosis of neonatal infectious diseases. This paper aims to summarize the studies on NETs in adult diseases and mainly discuss NETs in neonatal sepsis, necrotizing enterocolitis, and purulent meningitis, to provide scientific evidence for early monitoring, diagnosis, and treatment of neonatal infections.
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Affiliation(s)
- Ziheng Li
- Department of Neonatology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Zhejiang, China
| | - Tianming Yuan
- Department of Neonatology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Zhejiang, China
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15
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Willemsen JF, Wenskus J, Lenz M, Rhode H, Trochimiuk M, Appl B, Pagarol-Raluy L, Börnigen D, Bang C, Reinshagen K, Herrmann M, Elrod J, Boettcher M. DNases improve effectiveness of antibiotic treatment in murine polymicrobial sepsis. Front Immunol 2024; 14:1254838. [PMID: 38259485 PMCID: PMC10801052 DOI: 10.3389/fimmu.2023.1254838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 12/07/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction Neutrophil extracellular traps (NETs) have various beneficial and detrimental effects in the body. It has been reported that some bacteria may evade the immune system when entangled in NETs. Thus, the aim of the current study was to evaluate the effects of a combined DNase and antibiotic therapy in a murine model of abdominal sepsis. Methods C57BL/6 mice underwent a cecum-ligation-and-puncture procedure. We used wild-type and knockout mice with the same genetic background (PAD4-KO and DNase1-KO). Mice were treated with (I) antibiotics (Metronidazol/Cefuroxime), (II) DNAse1, or (III) with the combination of both; mock-treated mice served as controls. We employed a streak plate procedure and 16s-RNA analysis to evaluate bacterial translocation and quantified NETs formation by ELISA and immune fluorescence. Western blot and proteomics analysis were used to determine inflammation. Results A total of n=73 mice were used. Mice that were genetically unable to produce extended NETs or were treated with DNases displayed superior survival and bacterial clearance and reduced inflammation. DNase1 treatment significantly improved clearance of Gram-negative bacteria and survival rates. Importantly, the combination of DNase1 and antibiotics reduced tissue damage, neutrophil activation, and NETs formation in the affected intestinal tissue. Conclusion The combination of antibiotics with DNase1 ameliorates abdominal sepsis. Gram-negative bacteria are cleared better when NETs are cleaved by DNase1. Future studies on antibiotic therapy should be combined with anti-NETs therapies.
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Affiliation(s)
- Jan-Fritjof Willemsen
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Julia Wenskus
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Moritz Lenz
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Holger Rhode
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Madgalena Trochimiuk
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Birgit Appl
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Laia Pagarol-Raluy
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniela Börnigen
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Corinna Bang
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - Konrad Reinshagen
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Herrmann
- Department of Pediatric Surgery, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
- Department of Medicine 3, Friedrich Alexander University Erlangen-Nuremberg and Universitäts-klinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich Alexander University Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Julia Elrod
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Pediatric Surgery, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
| | - Michael Boettcher
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Pediatric Surgery, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
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16
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Córneo ES, Veras FP, Gomes GF, Schneider AH, Manuella B, Almeida CJLR, Silva CM, Martins RB, Batah SS, Simon CS, Prestes GDS, Alves-Filho JC, Arruda E, Louzada-Junior P, de Oliveira RDR, Fabro AT, Cunha TM, Cunha FQ, Dal-Pizzol F. Enoxaparin improves COVID-19 by reducing Neutrophils Extracellular Traps (NETs) production. Clin Immunol 2023; 257:109836. [PMID: 37951516 DOI: 10.1016/j.clim.2023.109836] [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: 08/03/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND COVID-19 causes consequences such as imbalance of the immune system and thrombotic events. During the infection process, NETs in excess induce a pro-inflammatory response and disseminated intravascular coagulation. We evaluated the role of enoxaparin as a potential inhibitor of NETs. METHODS K18-hACE2 animals infected with the SARS-CoV-2 virus and a group of 23 individuals admitted to the hospital with COVID-19 treated with enoxaparin or without treatment and controls without the disease were included. RESULTS Enoxaparin decreased the levels of NETs, reduced the signs of the disease and mitigated lung damage in the animals infected with SARS-CoV-2. These effects were partially associated with prevention of SARS-CoV-2 entry and NETs synthesis. Clinical data revealed that treatment with enoxaparin decreased the levels of inflammatory markers, the levels of NETs in isolated neutrophils and the organ dysfunction. CONCLUSION This study provides evidence for the beneficial effects of enoxaparin in COVID-19 in addition to its anticoagulant role.
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Affiliation(s)
- Emily S Córneo
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil.
| | - Flavio Protasio Veras
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil; Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center; Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Giovanni F Gomes
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Ayda H Schneider
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Bruna Manuella
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Cicero J L R Almeida
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Camila M Silva
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | | | - Sabrina S Batah
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Carla S Simon
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil
| | - Gabriele da S Prestes
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil
| | - José Carlos Alves-Filho
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | | | - Paulo Louzada-Junior
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Internal Medicine, Division of Clinical Immunology and Division of Infectious Diseases
| | - Renê D R de Oliveira
- Internal Medicine, Division of Clinical Immunology and Division of Infectious Diseases
| | - Alexandre T Fabro
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Thiago M Cunha
- Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Fernando Queiroz Cunha
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil; Center of Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, Ribeirão Preto, Brazil; Departments of Pharmacology Research Center
| | - Felipe Dal-Pizzol
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil
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17
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Kuley R, Duvvuri B, Wallin JJ, Bui N, Adona MV, O’Connor NG, Sahi SK, Stanaway IB, Wurfel MM, Morrell ED, Liles WC, Bhatraju PK, Lood C. Mitochondrial N-formyl methionine peptides contribute to exaggerated neutrophil activation in patients with COVID-19. Virulence 2023; 14:2218077. [PMID: 37248708 PMCID: PMC10231045 DOI: 10.1080/21505594.2023.2218077] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/15/2023] [Accepted: 05/20/2023] [Indexed: 05/31/2023] Open
Abstract
Neutrophil dysregulation is well established in COVID-19. However, factors contributing to neutrophil activation in COVID-19 are not clear. We assessed if N-formyl methionine (fMet) contributes to neutrophil activation in COVID-19. Elevated levels of calprotectin, neutrophil extracellular traps (NETs) and fMet were observed in COVID-19 patients (n = 68), particularly in critically ill patients, as compared to HC (n = 19, p < 0.0001). Of note, the levels of NETs were higher in ICU patients with COVID-19 than in ICU patients without COVID-19 (p < 0.05), suggesting a prominent contribution of NETs in COVID-19. Additionally, plasma from COVID-19 patients with mild and moderate/severe symptoms induced in vitro neutrophil activation through fMet/FPR1 (formyl peptide receptor-1) dependent mechanisms (p < 0.0001). fMet levels correlated with calprotectin levels validating fMet-mediated neutrophil activation in COVID-19 patients (r = 0.60, p = 0.0007). Our data indicate that fMet is an important factor contributing to neutrophil activation in COVID-19 disease and may represent a potential target for therapeutic intervention.
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Affiliation(s)
- Runa Kuley
- Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, USA
- Center for Life Sciences, Mahindra University, Hyderabad, India
| | - Bhargavi Duvvuri
- Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, USA
| | | | - Nam Bui
- Biomarker Sciences, Gilead Sciences Inc, Foster City, CA, USA
| | - Mary Vic Adona
- Biomarker Sciences, Gilead Sciences Inc, Foster City, CA, USA
| | - Nicholas G. O’Connor
- Department of Medicine, University of Washington, Seattle, WA, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Sharon K. Sahi
- Department of Medicine, University of Washington, Seattle, WA, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Ian B. Stanaway
- Department of Medicine, University of Washington, Seattle, WA, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Mark M. Wurfel
- Department of Medicine, University of Washington, Seattle, WA, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Eric D. Morrell
- Department of Medicine, University of Washington, Seattle, WA, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - W. Conrad Liles
- Department of Medicine, University of Washington, Seattle, WA, USA
- Sepsis Center of Research Excellence-UW (SCORE-UW), University of Washington, Seattle, WA, USA
| | - Pavan K. Bhatraju
- Department of Medicine, University of Washington, Seattle, WA, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA, USA
- Sepsis Center of Research Excellence-UW (SCORE-UW), University of Washington, Seattle, WA, USA
| | - Christian Lood
- Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, USA
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18
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Ngo AT, Skidmore A, Oberg J, Yarovoi I, Sarkar A, Levine N, Bochenek V, Zhao G, Rauova L, Kowalska MA, Eckart K, Mangalmurti NS, Rux A, Cines DB, Poncz M, Gollomp K. Platelet factor 4 limits neutrophil extracellular trap- and cell-free DNA-induced thrombogenicity and endothelial injury. JCI Insight 2023; 8:e171054. [PMID: 37991024 PMCID: PMC10721321 DOI: 10.1172/jci.insight.171054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 10/02/2023] [Indexed: 11/23/2023] Open
Abstract
Plasma cell-free DNA (cfDNA), a marker of disease severity in sepsis, is a recognized driver of thromboinflammation and a potential therapeutic target. In sepsis, plasma cfDNA is mostly derived from neutrophil extracellular trap (NET) degradation. Proposed NET-directed therapeutic strategies include preventing NET formation or accelerating NET degradation. However, NET digestion liberates pathogens and releases cfDNA that promote thrombosis and endothelial cell injury. We propose an alternative strategy of cfDNA and NET stabilization with chemokine platelet factor 4 (PF4, CXCL4). We previously showed that human PF4 (hPF4) enhances NET-mediated microbial entrapment. We now show that hPF4 interferes with thrombogenicity of cfDNA and NETs by preventing their cleavage to short-fragment and single-stranded cfDNA that more effectively activates the contact pathway of coagulation. In vitro, hPF4 also inhibits cfDNA-induced endothelial tissue factor surface expression and von Willebrand factor release. In vivo, hPF4 expression reduced plasma thrombin-antithrombin (TAT) levels in animals infused with exogenous cfDNA. Following lipopolysaccharide challenge, Cxcl4-/- mice had significant elevation in plasma TAT, cfDNA, and cystatin C levels, effects prevented by hPF4 infusion. These results show that hPF4 interacts with cfDNA and NETs to limit thrombosis and endothelial injury, an observation of potential clinical benefit in the treatment of sepsis.
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Affiliation(s)
- Anh T.P. Ngo
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Abigail Skidmore
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Jenna Oberg
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Irene Yarovoi
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Amrita Sarkar
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Nate Levine
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Veronica Bochenek
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Guohua Zhao
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Lubica Rauova
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - M. Anna Kowalska
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Institute of Medical Biology, Polish Academy of Science, Lodz, Poland
| | | | | | - Ann Rux
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Douglas B. Cines
- Department of Medicine, and
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mortimer Poncz
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kandace Gollomp
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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19
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Schmidt C, Weißmüller S, Heinz CC. Multifaceted Tissue-Protective Functions of Polyvalent Immunoglobulin Preparations in Severe Infections-Interactions with Neutrophils, Complement, and Coagulation Pathways. Biomedicines 2023; 11:3022. [PMID: 38002022 PMCID: PMC10669904 DOI: 10.3390/biomedicines11113022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/30/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Severe infections induce immune defense mechanisms and initial tissue damage, which produce an inflammatory neutrophil response. Upon dysregulation of these responses, inflammation, further tissue damage, and systemic spread of the pathogen may occur. Subsequent vascular inflammation and activation of coagulation processes may cause microvascular obstruction at sites distal to the primary site of infection. Low immunoglobulin (Ig) M and IgG levels have been detected in patients with severe infections like sCAP and sepsis, associated with increased severity and mortality. Based on Ig's modes of action, supplementation with polyvalent intravenous Ig preparations (standard IVIg or IgM/IgA-enriched Ig preparations) has long been discussed as a treatment option for severe infections. A prerequisite seems to be the timely administration of Ig preparations before excessive tissue damage has occurred and coagulopathy has developed. This review focuses on nonclinical and clinical studies that evaluated tissue-protective activities resulting from interactions of Igs with neutrophils, complement, and the coagulation system. The data indicate that coagulopathy, organ failure, and even death of patients can possibly be prevented by the timely combined interactions of (natural) IgM, IgA, and IgG with neutrophils and complement.
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Affiliation(s)
- Carolin Schmidt
- Department of Corporate Clinical Research and Development, Biotest AG, 63303 Dreieich, Germany
| | | | - Corina C Heinz
- Department of Corporate Clinical Research and Development, Biotest AG, 63303 Dreieich, Germany
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20
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Du Y, Chen Y, Li F, Mao Z, Ding Y, Wang W. Genetically Engineered Cellular Nanovesicle as Targeted DNase I Delivery System for the Clearance of Neutrophil Extracellular Traps in Acute Lung Injury. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303053. [PMID: 37759381 PMCID: PMC10646266 DOI: 10.1002/advs.202303053] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/18/2023] [Indexed: 09/29/2023]
Abstract
Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) are prevalent critical illnesses with a high mortality rate among patients in intensive care units. Neutrophil extracellular traps (NETs) are implicated in the pathogenesis of ALI/ARDS and represent a promising therapeutic target. However, the clinical application of deoxyribonuclease I (DNase I), the only drug currently available to clear NETs, is limited due to the lack of precise and efficient delivery strategies. Therefore, targeted delivery of DNase I to the inflamed lung remains a critical issue to be addressed. Herein, a novel biomimetic DNase I delivery system is developed (DCNV) that employs genetically and bioorthogonally engineered cellular nanovesicles for pulmonary NETs clearance. The CXC motif chemokine receptor 2 overexpressed cellular nanovesicles can mimic the inflammatory chemotaxis of neutrophils in ALI/ARDS, leading to enhanced lung accumulation. Furthermore, DNase I immobilized through bioorthogonal chemistry exhibits remarkable enzymatic activity in NETs degradation, thus restraining inflammation and safeguarding lung tissue in the lipopolysaccharide-induced ALI murine model. Collectively, the findings present a groundbreaking proof-of-concept in the utilization of biomimetic cellular nanovesicles to deliver DNase I for treating ALI/ARDS. This innovative strategy may usher in a new era in the development of pharmacological interventions for various inflammation-related diseases.
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Affiliation(s)
- Yang Du
- Department of Hepatobiliary and Pancreatic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang ProvinceHangzhouZhejiang310009China
- Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang ProvinceHangzhouZhejiang310009China
- National Innovation Center for Fundamental Research on Cancer MedicineHangzhouZhejiang310009China
- Cancer CenterZhejiang UniversityHangzhouZhejiang310058China
- ZJU‐Pujian Research & Development Center of Medical Artificial Intelligence for Hepatobiliary and Pancreatic DiseaseHangzhouZhejiang310058China
| | - Yining Chen
- Department of Hepatobiliary and Pancreatic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang ProvinceHangzhouZhejiang310009China
- Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang ProvinceHangzhouZhejiang310009China
- National Innovation Center for Fundamental Research on Cancer MedicineHangzhouZhejiang310009China
- Cancer CenterZhejiang UniversityHangzhouZhejiang310058China
- ZJU‐Pujian Research & Development Center of Medical Artificial Intelligence for Hepatobiliary and Pancreatic DiseaseHangzhouZhejiang310058China
| | - Fangyuan Li
- Department of Hepatobiliary and Pancreatic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang ProvinceHangzhouZhejiang310009China
- Institute of PharmaceuticsHangzhou Institute of Innovative MedicineCollege of Pharmaceutical SciencesZhejiang UniversityHangzhouZhejiang310058China
| | - Zhengwei Mao
- Department of Hepatobiliary and Pancreatic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang ProvinceHangzhouZhejiang310009China
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhouZhejiang310027China
| | - Yuan Ding
- Department of Hepatobiliary and Pancreatic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang ProvinceHangzhouZhejiang310009China
- Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang ProvinceHangzhouZhejiang310009China
- National Innovation Center for Fundamental Research on Cancer MedicineHangzhouZhejiang310009China
- Cancer CenterZhejiang UniversityHangzhouZhejiang310058China
- ZJU‐Pujian Research & Development Center of Medical Artificial Intelligence for Hepatobiliary and Pancreatic DiseaseHangzhouZhejiang310058China
| | - Weilin Wang
- Department of Hepatobiliary and Pancreatic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang ProvinceHangzhouZhejiang310009China
- Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang ProvinceHangzhouZhejiang310009China
- National Innovation Center for Fundamental Research on Cancer MedicineHangzhouZhejiang310009China
- Cancer CenterZhejiang UniversityHangzhouZhejiang310058China
- ZJU‐Pujian Research & Development Center of Medical Artificial Intelligence for Hepatobiliary and Pancreatic DiseaseHangzhouZhejiang310058China
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21
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Yadav SK, Park S, Lee YM, Hurh S, Kim D, Min S, Kim S, Yan JJ, Kang BC, Kim S, Yang J, Jeong JC. Application of microphysiologic system to assess neutrophil extracellular trap in xenotransplantation. J Immunol Methods 2023; 521:113537. [PMID: 37598787 DOI: 10.1016/j.jim.2023.113537] [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: 05/23/2023] [Revised: 08/03/2023] [Accepted: 08/14/2023] [Indexed: 08/22/2023]
Abstract
Transplantation of organs, cells, or tissues from one species to another, known as xenotransplantation, has the potential to alleviate organ donor shortages and enhance the success of organ transplantation. However, the possibility of immunological rejection by the recipient is one of the biggest difficulties associated with xenotransplantation. The creation of neutrophil extracellular traps (NETs), also known as NETosis, is hypothesized as a mechanism of rejection. Innovations in microfluidics and co-culturing techniques have provided access to several classes of microengineered model systems in experimental models, connecting animal research and traditional in vitro methods such as organoids, microphysiological systems, and organs-on-chip. To achieve this goal, we established a perfusable 3D Xeno vessel chip using a porcine aortic endothelial cell line and examined how NETs grow when isolated human and primate neutrophils were used. Neutrophils from both humans and monkeys displayed the usual NETosis phases, including nuclear decondensation, enlargement, and rounding of DNA, occupying the entire cytoplasm, and discharge of fragmented DNA after cell membrane rupture. Using confocal fluorescence imaging of DNA and citrullinated histone colocalization and DNA histone complex formation in supernatants from xeno vessel chips, we confirmed NETs generation by human and monkey neutrophils when cocultured in a xeno-vessel chip.
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Affiliation(s)
- Suchen Kumar Yadav
- Department of Medicine, Seoul National University College of Medicine, Seoul, South Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.
| | - Seokwoo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.
| | - Yun-Mi Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.
| | - Sunghoon Hurh
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul, South Korea.
| | | | - Sangil Min
- Department of Surgery, Seoul National University Hospital, Seoul, South Korea.
| | - Sejoong Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.
| | - Ji-Jing Yan
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea.
| | - Byeong-Cheol Kang
- Department of Medicine, Seoul National University College of Medicine, Seoul, South Korea.
| | | | - Jaeseok Yang
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea.
| | - Jong Cheol Jeong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea.
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22
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Liu D, Xiao M, Zhou J, Wang P, Peng J, Mao W, Hu Y, Liu Y, Yin J, Ke L, Li W. PFKFB3 promotes sepsis-induced acute lung injury by enhancing NET formation by CXCR4 hi neutrophils. Int Immunopharmacol 2023; 123:110737. [PMID: 37543012 DOI: 10.1016/j.intimp.2023.110737] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/07/2023]
Abstract
CXCR4hi neutrophils, which are a subset of neutrophils with high CXCR4 expression, are important contributors to sepsis-induced acute lung injury (ALI). PFKFB3, a key glycolysis gene, plays an essential role in neutrophil inflammatory activation. However, the specific involvement of PFKFB3 in sepsis-induced ALI remains unclear. Here, we observed that PFKFB3 was upregulated in CXCR4hi neutrophils and facilitated sepsis-induced ALI. Mechanistically, we observed that PFKFB3 promoted sepsis-induced ALI by enhancing neutrophil extracellular trap (NET) formation by CXCR4hi neutrophils. Further study indicated that PFKFB3 promoted NET formation by upregulating glycolytic metabolism in CXCR4hi neutrophils. In summary, our study uncovered a new mechanism by which CXCR4hi neutrophils trigger sepsis-induced ALI by promoting NET formation, which is supported by PFKFB3-mediated glycolytic metabolism.
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Affiliation(s)
- Dadong Liu
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Xiao
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Zhou
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Peng Wang
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jingwen Peng
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Wenjian Mao
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Yuepeng Hu
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Yuxiu Liu
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jiangtao Yin
- Department of Critical Care Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China; Digestive Disease Institute, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
| | - Lu Ke
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China.
| | - Weiqin Li
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China.
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23
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Li X, Xiao S, Filipczak N, Yalamarty SSK, Shang H, Zhang J, Zheng Q. Role and Therapeutic Targeting Strategies of Neutrophil Extracellular Traps in Inflammation. Int J Nanomedicine 2023; 18:5265-5287. [PMID: 37746050 PMCID: PMC10516212 DOI: 10.2147/ijn.s418259] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/29/2023] [Indexed: 09/26/2023] Open
Abstract
Neutrophil extracellular traps (NETs) are large DNA reticular structures secreted by neutrophils and decorated with histones and antimicrobial proteins. As a key mechanism for neutrophils to resist microbial invasion, NETs play an important role in the killing of microorganisms (bacteria, fungi, and viruses). Although NETs are mostly known for mediating microbial killing, increasing evidence suggests that excessive NETs induced by stimulation of physical and chemical components, microorganisms, and pathological factors can exacerbate inflammation and organ damage. This review summarizes the induction and role of NETs in inflammation and focuses on the strategies of inhibiting NETosis and the mechanisms involved in pathogen evasion of NETs. Furthermore, herbal medicine inhibitors and nanodelivery strategies improve the efficiency of inhibition of excessive levels of NETs.
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Affiliation(s)
- Xiang Li
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Shanghua Xiao
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Nina Filipczak
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA, USA
| | | | - Hongming Shang
- Department of Biochemistry & Chemical Biology, Vanderbilt University, Nashville, TN, USA
| | - Jing Zhang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Qin Zheng
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
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24
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Huang MYY, Lippuner C, Schiff M, Book M, Stueber F. Neutrophil extracellular trap formation during surgical procedures: a pilot study. Sci Rep 2023; 13:15217. [PMID: 37709941 PMCID: PMC10502064 DOI: 10.1038/s41598-023-42565-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/12/2023] [Indexed: 09/16/2023] Open
Abstract
Neutrophils can release neutrophil extracellular traps (NETs) containing DNA fibres and antimicrobial peptides to immobilize invading pathogens. NET formation (NETosis) plays a vital role in inflammation and immune responses. In this study we investigated the impact of surgical trauma on NETosis of neutrophils. Nine patients undergoing "Transcatheter/percutaneous aortic valve implantation" (TAVI/PAVI, mild surgical trauma), and ten undergoing "Aortocoronary bypass" (ACB, severe surgical trauma) were included in our pilot study. Peripheral blood was collected before, end of, and after surgery (24 h and 48 h). Neutrophilic granulocytes were isolated and stimulated in vitro with Phorbol-12-myristate-13-acetate (PMA). NETosis rate was examined by microscopy. In addition, HLA-DR surface expression on circulating monocytes was analysed by flow-cytometry as a prognostic marker of the immune status. Both surgical procedures led to significant down regulation of monocytic HLA-DR surface expression, albeit more pronounced in ACB patients, and there was a similar trend in NETosis regulation over the surgical 24H course. Upon PMA stimulation, no significant difference in NETosis was observed over time in TAVI/PAVI group; however, a decreasing NETosis trend with a significant drop upon ACB surgery was evident. The reduced PMA-induced NETosis in ACB group suggests that the inducibility of neutrophils to form NETs following severe surgical trauma may be compromised. Moreover, the decreased monocytic HLA-DR expression suggests a post-operative immunosuppressed status in all patients, with a bigger impact by ACB, which might be attributed to the extracorporeal circulation or tissue damage occurring during surgery.
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Affiliation(s)
- Melody Ying-Yu Huang
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
- Department for BioMedical Research, University of Bern, Bern, Switzerland.
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zürich, Zürich, Switzerland.
| | - Christoph Lippuner
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Marcel Schiff
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
- Universitätsklinikum Freiburg, Freiburg, Germany
| | - Malte Book
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Universitätsklinik für Anästhesiologie/Intensiv-/Notfallmedizin/Schmerztherapie, Oldenburg, Germany
| | - Frank Stueber
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
- Department for BioMedical Research, University of Bern, Bern, Switzerland.
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25
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Jarrahi A, Khodadadi H, Moore NS, Lu Y, Awad ME, Salles EL, Vaibhav K, Baban B, Dhandapani KM. Recombinant human DNase-I improves acute respiratory distress syndrome via neutrophil extracellular trap degradation. J Thromb Haemost 2023; 21:2473-2484. [PMID: 37196848 PMCID: PMC10185489 DOI: 10.1016/j.jtha.2023.04.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/21/2023] [Accepted: 04/28/2023] [Indexed: 05/19/2023]
Abstract
BACKGROUND Respiratory failure is the primary cause of death in patients with COVID-19, whereas coagulopathy is associated with excessive inflammation and multiorgan failure. Neutrophil extracellular traps (NETs) may exacerbate inflammation and provide a scaffold for thrombus formation. OBJECTIVES The goal of this study was to determine whether degradation of NETs by recombinant human DNase-I (rhDNase), a safe, Food and Drug Administration-approved drug, reduces excessive inflammation, reverses aberrant coagulation, and improves pulmonary perfusion after experimental acute respiratory distress syndrome (ARDS). METHODS Intranasal poly(I:C), a synthetic double-stranded RNA, was administered to adult mice for 3 consecutive days to simulate a viral infection, and these subjects were randomized to treatment arms, which received either an intravenous placebo or rhDNase. The effects of rhDNase on immune activation, platelet aggregation, and coagulation were assessed in mice and donor human blood. RESULTS NETs were observed in bronchoalveolar lavage fluid and within regions of hypoxic lung tissue after experimental ARDS. The administration of rhDNase mitigated peribronchiolar, perivascular, and interstitial inflammation induced by poly(I:C). In parallel, rhDNase degraded NETs, attenuated platelet-NET aggregates, reduced platelet activation, and normalized the clotting time to improve regional perfusion, as observed using gross morphology, histology, and microcomputed tomographic imaging in mice. Similarly, rhDNase reduced NETs and attenuated platelet activation in human blood. CONCLUSION NETs exacerbate inflammation and promote aberrant coagulation by providing a scaffold for aggregated platelets after experimental ARDS. Intravenous administration of rhDNase degrades NETs and attenuates coagulopathy in ARDS, providing a promising translational approach to improve pulmonary structure and function after ARDS.
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Affiliation(s)
- Abbas Jarrahi
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Hesam Khodadadi
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Nicholas S Moore
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Yujiao Lu
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Mohamed E Awad
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Evila L Salles
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Kumar Vaibhav
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Babak Baban
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, Georgia, USA; Department of Surgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Krishnan M Dhandapani
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.
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26
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Bonilha CS, Veras FP, de Queiroz Cunha F. NET-targeted therapy: effects, limitations, and potential strategies to enhance treatment efficacy. Trends Pharmacol Sci 2023; 44:622-634. [PMID: 37468402 DOI: 10.1016/j.tips.2023.06.007] [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: 05/26/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/21/2023]
Abstract
Neutrophil extracellular traps (NETs) are complex structures released by activated neutrophils during inflammatory responses. Due to their unique potential for causing tissue damage and modulating immune responses, there is increasing interest in studying these structures as potential targets for the treatment of infectious diseases, autoimmune diseases, and cancer. However, therapeutic targeting of NETs might trigger deleterious effects that may limit treatment efficacy. NET disruption may increase the microbial load in infection; in autoimmunity, NET targeting might impair peripheral tolerance, but it might reduce adaptive immune responses in cancer. In this review, we explore the therapeutic and deleterious effects of NET-targeted therapy while shedding light on novel strategies to overcome treatment-related limitations and enhance treatment efficacy.
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Affiliation(s)
- Caio Santos Bonilha
- Center for Research in Inflammatory Diseases, University of Sao Paulo, Sao Paulo 14049-900, Brazil; Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow G12 8TA, UK.
| | - Flavio Protasio Veras
- Center for Research in Inflammatory Diseases, University of Sao Paulo, Sao Paulo 14049-900, Brazil; Institute of Biomedical Sciences, Federal University of Alfenas, Minas Gerais 37130-001, Brazil
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27
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Sedney CJ, Harvill ET. The Neonatal Immune System and Respiratory Pathogens. Microorganisms 2023; 11:1597. [PMID: 37375099 PMCID: PMC10301501 DOI: 10.3390/microorganisms11061597] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/02/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Neonates are more susceptible to some pathogens, particularly those that cause infection in the respiratory tract. This is often attributed to an incompletely developed immune system, but recent work demonstrates effective neonatal immune responses to some infection. The emerging view is that neonates have a distinctly different immune response that is well-adapted to deal with unique immunological challenges of the transition from a relatively sterile uterus to a microbe-rich world, tending to suppress potentially dangerous inflammatory responses. Problematically, few animal models allow a mechanistic examination of the roles and effects of various immune functions in this critical transition period. This limits our understanding of neonatal immunity, and therefore our ability to rationally design and develop vaccines and therapeutics to best protect newborns. This review summarizes what is known of the neonatal immune system, focusing on protection against respiratory pathogens and describes challenges of various animal models. Highlighting recent advances in the mouse model, we identify knowledge gaps to be addressed.
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Affiliation(s)
| | - Eric T. Harvill
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA;
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28
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Vago JP, Zaidan I, Perucci LO, Brito LF, Teixeira LC, Silva CMS, Miranda TC, Melo EM, Bruno AS, Queiroz-Junior CM, Sugimoto MA, Tavares LP, Grossi LC, Borges IN, Schneider AH, Baik N, Schneider AH, Talvani A, Ferreira RG, Alves-Filho JC, Nobre V, Teixeira MM, Parmer RJ, Miles LA, Sousa LP. Plasmin and plasminogen prevent sepsis severity by reducing neutrophil extracellular traps and systemic inflammation. JCI Insight 2023; 8:e166044. [PMID: 36917195 PMCID: PMC10243804 DOI: 10.1172/jci.insight.166044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/08/2023] [Indexed: 03/16/2023] Open
Abstract
Sepsis is a lethal syndrome characterized by systemic inflammation and abnormal coagulation. Despite therapeutic advances, sepsis mortality remains substantially high. Herein, we investigated the role of the plasminogen/plasmin (Plg/Pla) system during sepsis. Plasma levels of Plg were significantly lower in mice subjected to severe compared with nonsevere sepsis, whereas systemic levels of IL-6, a marker of sepsis severity, were higher in severe sepsis. Plg levels correlated negatively with IL-6 in both septic mice and patients, whereas plasminogen activator inhibitor-1 levels correlated positively with IL-6. Plg deficiency render mice susceptible to nonsevere sepsis induced by cecal ligation and puncture (CLP), resulting in greater numbers of neutrophils and M1 macrophages, liver fibrin(ogen) deposition, lower efferocytosis, and increased IL-6 and neutrophil extracellular trap (NET) release associated with organ damage. Conversely, inflammatory features, fibrin(ogen), and organ damage were substantially reduced, and efferocytosis was increased by exogenous Pla given during CLP- and LPS-induced endotoxemia. Plg or Pla protected mice from sepsis-induced lethality and enhanced the protective effect of antibiotics. Mechanistically, Plg/Pla-afforded protection was associated with regulation of NET release, requiring Pla-protease activity and lysine binding sites. Plg/Pla are important host-protective players during sepsis, controlling local and systemic inflammation and collateral organ damage.
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Affiliation(s)
- Juliana P. Vago
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA
| | - Isabella Zaidan
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Luiza O. Perucci
- Department of Biological Sciences, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Larissa Froede Brito
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Lívia C.R. Teixeira
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Camila Meirelles Souza Silva
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Thaís C. Miranda
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Eliza M. Melo
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Alexandre S. Bruno
- Department of Pharmacology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Celso Martins Queiroz-Junior
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Michelle A. Sugimoto
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana P. Tavares
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Laís C. Grossi
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Isabela N. Borges
- Hospital of Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ayda Henriques Schneider
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Nagyung Baik
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA
| | - Ayda H. Schneider
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - André Talvani
- Department of Biological Sciences, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Raphael G. Ferreira
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - José C. Alves-Filho
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Vandack Nobre
- Hospital of Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mauro M. Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Robert J. Parmer
- Department of Medicine, Veterans Administration San Diego Healthcare System and University of California, San Diego, California, USA
| | - Lindsey A. Miles
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA
| | - Lirlândia P. Sousa
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
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29
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Huang QY, Zhang R, Zhang QY, Dai C, Yu XY, Yuan L, Liu YY, Shen Y, Huang KL, Lin ZH. Disulfiram reduces the severity of mouse acute pancreatitis by inhibiting RIPK1-dependent acinar cell necrosis. Bioorg Chem 2023; 133:106382. [PMID: 36716580 DOI: 10.1016/j.bioorg.2023.106382] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/12/2023] [Accepted: 01/15/2023] [Indexed: 01/22/2023]
Abstract
Acute pancreatitis (AP) is a frequent abdominal inflammatory disease. Despite the high morbidity and mortality, the management of AP remains unsatisfactory. Disulfiram (DSF) is an FDA-proved drug with potential therapeutic effects on inflammatory diseases. In this study, we aim to investigate the effect of DSF on pancreatic acinar cell necrosis, and to explore the underlying mechanisms. Cell necrosis was induced by sodium taurocholate or caerulein, AP mice model was induced by nine hourly injections of caerulein. Network pharmacology, molecular docking, and molecular dynamics simulation were used to explore the potential targets of DSF in protecting against cell necrosis. The results indicated that DSF significantly inhibited acinar cell necrosis as evidenced by a decreased ratio of necrotic cells in the pancreas. Network pharmacology, molecular docking, and molecular dynamics simulation identified RIPK1 as a potent target of DSF in protecting against acinar cell necrosis. qRT-PCR analysis revealed that DSF decreased the mRNA levels of RIPK1 in freshly isolated pancreatic acinar cells and the pancreas of AP mice. Western blot showed that DSF treatment decreased the expressions of RIPK1 and MLKL proteins. Moreover, DSF inhibited NF-κB activation in acini. It also decreased the protein expression of TLR4 and the formation of neutrophils extracellular traps (NETs) induced by damage-associated molecular patterns released by necrotic acinar cells. Collectively, DSF could ameliorate the severity of mouse acute pancreatitis by inhibiting RIPK-dependent acinar cell necrosis and the following formation of NETs.
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Affiliation(s)
- Qiu-Yang Huang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China
| | - Rui Zhang
- Department of Pharmacy, Guizhou Provincial People's Hospital, 550002 Guiyang, China
| | - Qing-Yu Zhang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China
| | - Chen Dai
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China
| | - Xiu-Yan Yu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China
| | - Lu Yuan
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China
| | - Yi-Yuan Liu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China
| | - Yan Shen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China.
| | - Kui-Long Huang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China
| | - Zhi-Hua Lin
- School of Pharmacy and Bioengineering, Chongqing University of Technology, 400054 Chongqing, China.
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30
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Leal VNC, Andrade MMS, Teixeira FME, Cambui RAG, Roa MEGV, Marra LG, Yamada SM, Alberca RW, Gozzi-Silva SC, Yendo TM, Netto LC, Duarte AJS, Sato MN, Pontillo A. Severe COVID-19 patients show a dysregulation of the NLRP3 inflammasome in circulating neutrophils. Scand J Immunol 2023; 97:e13247. [PMID: 36541819 DOI: 10.1111/sji.13247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/15/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
SARS-CoV-2 triggers inflammasome-dependent release of pro-inflammatory cytokine IL-1β and pyroptosis, therefore, contributes to the huge inflammatory response observed in severe COVID-19 patients. Less is known about the engagement of inflammasome in neutrophils, main players in tissue injury and severe infection. We studied the activation of the inflammasome in neutrophils from severe COVID-19 patients and assessed its consequence in term of cells contribution to disease pathogenesis. We demonstrated that NLRP3 inflammasome is dramatically activated in neutrophils from severe COVID-19 patients and that the specific inhibition of NLRP3 reverts neutrophils' activation. Next, the stimulation of severe patients' neutrophils with common NLRP3 stimuli was not able to further activate the inflammasome, possibly due to exhaustion or increased percentage of circulating immature neutrophils. Collectively, our results demonstrate that the NLRP3 inflammasome is hyperactivated in severe COVID-19 neutrophils and its exhaustion may be responsible for the increased susceptibility to subsequent (and possibly lethal) infections. Our findings thus include a novel piece in the complex puzzle of COVID-19 pathogenesis.
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Affiliation(s)
- Vinicius N C Leal
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Milena M S Andrade
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Franciane M E Teixeira
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Raylane A G Cambui
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Mariela E G V Roa
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Letícia G Marra
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Suemy M Yamada
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Ricardo W Alberca
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Sarah C Gozzi-Silva
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Tatiana M Yendo
- Departamento de Dermatologia, Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Lucas C Netto
- Unidade Terapia Intensiva, Hospital das Clínicas/FMUSP, São Paulo, Brazil
| | - Alberto J S Duarte
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Maria N Sato
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Alessandra Pontillo
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
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31
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Denorme F, Rustad JL, Portier I, Crandell JL, de Araujo CV, Cody MJ, Campbell RA, Yost CC. Neutrophil extracellular trap inhibition improves survival in neonatal mouse infectious peritonitis. Pediatr Res 2023; 93:862-869. [PMID: 35902703 PMCID: PMC9331023 DOI: 10.1038/s41390-022-02219-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/25/2022] [Accepted: 07/09/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND Treatment of neonatal peritonitis and sepsis is challenging. Following infection, neutrophils elaborate neutrophil extracellular traps (NETs)-extracellular lattices of decondensed chromatin decorated with antimicrobial proteins. NETs, however, can augment pathogenic inflammation causing collateral damage. We hypothesized that NET inhibition would improve survival in experimental neonatal infectious peritonitis. METHODS We induced peritonitis in 7 to 10-day-old mice by intraperitoneal injection with cecal slurry. We targeted NETs by treating mice with neonatal NET-Inhibitory Factor (nNIF), an endogenous NET-inhibitor; Cl-amidine, a PAD4 inhibitor; DNase I, a NET degrading enzyme, or meropenem (an antibiotic). We determined peritoneal NET and cytokine levels and circulating platelet-neutrophil aggregates. Survival from peritonitis was followed for 6 days. RESULTS nNIF, Cl-amidine, and DNase I decreased peritoneal NET formation and inflammatory cytokine levels at 24 h compared to controls. nNIF, Cl-amidine, and DNase I decreased circulating platelet-neutrophil aggregates, and NET-targeting treatments significantly increased survival from infectious peritonitis compared to controls. Finally, nNIF administration significantly improved survival in mice treated with sub-optimal doses of meropenem even when treatment was delayed until 2 h after peritonitis induction. CONCLUSIONS NET inhibition improves survival in experimental neonatal infectious peritonitis, suggesting that NETs participate pathogenically in neonatal peritonitis and sepsis. IMPACT 1. Neutrophil extracellular trap formation participates pathogenically in experimental neonatal infectious peritonitis. 2. NET-targeting strategies improve outcomes in a translational model of neonatal infectious peritonitis. 3. NET inhibition represents a potential target for drug development in neonatal sepsis and infectious peritonitis.
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Affiliation(s)
| | - John L Rustad
- Molecular Medicine Program, Salt Lake City, UT, 84112, USA
| | - Irina Portier
- Molecular Medicine Program, Salt Lake City, UT, 84112, USA
| | | | - Claudia V de Araujo
- Molecular Medicine Program, Salt Lake City, UT, 84112, USA
- Department of Pediatrics/Neonatology, Salt Lake City, UT, 84112, USA
| | - Mark J Cody
- Molecular Medicine Program, Salt Lake City, UT, 84112, USA
- Department of Pediatrics/Neonatology, Salt Lake City, UT, 84112, USA
| | - Robert A Campbell
- Molecular Medicine Program, Salt Lake City, UT, 84112, USA
- Department of Internal Medicine, University of Utah, Salt Lake City, UT, 84112, USA
| | - Christian C Yost
- Molecular Medicine Program, Salt Lake City, UT, 84112, USA.
- Department of Pediatrics/Neonatology, Salt Lake City, UT, 84112, USA.
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32
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Ngo ATP, Sarkar A, Yarovoi I, Levine ND, Bochenek V, Zhao G, Rauova L, Kowalska MA, Eckart K, Mangalmurti NS, Rux A, Cines DB, Poncz M, Gollomp K. Neutrophil extracellular trap stabilization by platelet factor 4 reduces thrombogenicity and endothelial cell injury. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.09.522931. [PMID: 36711969 PMCID: PMC9881987 DOI: 10.1101/2023.01.09.522931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Neutrophil extracellular traps (NETs) are abundant in sepsis, and proposed NET-directed therapies in sepsis prevent their formation or accelerate degradation. Yet NETs are important for microbial entrapment, as NET digestion liberates pathogens and NET degradation products (NDPs) that deleteriously promote thrombosis and endothelial cell injury. We proposed an alternative strategy of NET-stabilization with the chemokine, platelet factor 4 (PF4, CXCL4), which we have shown enhances NET-mediated microbial entrapment. We now show that NET compaction by PF4 reduces their thrombogenicity. In vitro, we quantified plasma thrombin and fibrin generation by intact or degraded NETs and cell-free (cf) DNA fragments, and found that digested NETs and short DNA fragments were more thrombogenic than intact NETs and high molecular weight genomic DNA, respectively. PF4 reduced the thrombogenicity of digested NETs and DNA by interfering, in part, with contact pathway activation. In endothelial cell culture studies, short DNA fragments promoted von Willebrand factor release and tissue factor expression via a toll-like receptor 9-dependent mechanism. PF4 blocked these effects. Cxcl4-/- mice infused with cfDNA exhibited higher plasma thrombin anti-thrombin (TAT) levels compared to wild-type controls. Following challenge with bacterial lipopolysaccharide, Cxcl4-/- mice had similar elevations in plasma TAT and cfDNA, effects prevented by PF4 infusion. Thus, NET-stabilization by PF4 prevents the release of short fragments of cfDNA, limiting the activation of the contact coagulation pathway and reducing endothelial injury. These results support our hypothesis that NET-stabilization reduces pathologic sequelae in sepsis, an observation of potential clinical benefit.
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Affiliation(s)
- Anh T. P. Ngo
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Amrita Sarkar
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Irene Yarovoi
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Nate D. Levine
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Veronica Bochenek
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Guohua Zhao
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Lubica Rauova
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - M. Anna Kowalska
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Kaitlyn Eckart
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Nilam S. Mangalmurti
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Ann Rux
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Douglas B. Cines
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Mortimer Poncz
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Kandace Gollomp
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
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33
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Oliveira I, Costa V, Veras F, Ferreira I, Cunha F, Cunha T, Monteiro W, Arantes E, Pucca M. A Promising Biomolecule Able to Degrade Neutrophil Extracellular Traps: CdcPDE, a Rattlesnake Phosphodiesterase. Toxins (Basel) 2023; 15:44. [PMID: 36668864 PMCID: PMC9861997 DOI: 10.3390/toxins15010044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Neutrophil extracellular traps (NETs) are an important mechanism for defense against pathogens. Their overproduction can be harmful since excessive NET formation promotes inflammation and tissue damage in several diseases. Nucleases are capable to degrade NET on basis of their DNA hydrolysis activity, including the CdcPDE, a nuclease isolated from Crotalus durissus collilineatus snake venom. Here, we report a new finding about CdcPDE activity, demonstrating its efficiency in degrading cell-free DNA from NETs, being a potential candidate to assist in therapies targeting inflammatory diseases.
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Affiliation(s)
- Isadora Oliveira
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-903, SP, Brazil
| | - Victor Costa
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil
| | - Flávio Veras
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil
| | - Isabela Ferreira
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-903, SP, Brazil
| | - Fernando Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil
| | - Thiago Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil
| | - Wuelton Monteiro
- School of Health Sciences, Amazonas State University, Manaus 69850-000, AM, Brazil
- Department of Teaching and Research, Dr. Heitor Vieira Dourado Tropical Medicine Foundation, Manaus 69850-000, AM, Brazil
| | - Eliane Arantes
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-903, SP, Brazil
| | - Manuela Pucca
- Medical School, Federal University of Roraima, Boa Vista 69310-000, RR, Brazil
- Health Sciences Postgraduate Program, Federal University of Roraima, Boa Vista 69310-000, RR, Brazil
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34
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Zhu C, Liu C, Chai Z. Role of the PADI family in inflammatory autoimmune diseases and cancers: A systematic review. Front Immunol 2023; 14:1115794. [PMID: 37020554 PMCID: PMC10067674 DOI: 10.3389/fimmu.2023.1115794] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 02/08/2023] [Indexed: 04/07/2023] Open
Abstract
The peptidyl arginine deiminase (PADI) family is a calcium ion-dependent group of isozymes with sequence similarity that catalyze the citrullination of proteins. Histones can serve as the target substrate of PADI family isozymes, and therefore, the PADI family is involved in NETosis and the secretion of inflammatory cytokines. Thus, the PADI family is associated with the development of inflammatory autoimmune diseases and cancer, reproductive development, and other related diseases. In this review, we systematically discuss the role of the PADI family in the pathogenesis of various diseases based on studies from the past decade to provide a reference for future research.
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Affiliation(s)
- Changhui Zhu
- Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, School of Basic Medical Sciences, Weifang Medical University, Weifang, Shandong, China
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Chunyan Liu
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- *Correspondence: Chunyan Liu, ; Zhengbin Chai,
| | - Zhengbin Chai
- Department of Clinical Laboratory Medicine, Shandong Public Health Clinical Center, Shandong University, Jinan, China
- *Correspondence: Chunyan Liu, ; Zhengbin Chai,
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Targeting neutrophils extracellular traps (NETs) reduces multiple organ injury in a COVID-19 mouse model. Respir Res 2023; 24:66. [PMID: 36864506 PMCID: PMC9978286 DOI: 10.1186/s12931-023-02336-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 01/18/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND COVID-19 is characterized by severe acute lung injury, which is associated with neutrophil infiltration and the release of neutrophil extracellular traps (NETs). COVID-19 treatment options are scarce. Previous work has shown an increase in NETs release in the lung and plasma of COVID-19 patients suggesting that drugs that prevent NETs formation or release could be potential therapeutic approaches for COVID-19 treatment. METHODS Here, we report the efficacy of NET-degrading DNase I treatment in a murine model of COVID-19. SARS-CoV-2-infected K18-hACE2 mice were performed for clinical sickness scores and lung pathology. Moreover, the levels of NETs were assessed and lung injuries were by histopathology and TUNEL assay. Finally, the injury in the heart and kidney was assessed by histopathology and biochemical-specific markers. RESULTS DNase I decreased detectable levels of NETs, improved clinical disease, and reduced lung, heart, and kidney injuries in SARS-CoV-2-infected K18-hACE2 mice. Furthermore, our findings indicate a potentially deleterious role for NETs lung tissue in vivo and lung epithelial (A549) cells in vitro, which might explain part of the pathophysiology of severe COVID-19. This deleterious effect was diminished by the treatment with DNase I. CONCLUSIONS Together, our results support the role of NETs in COVID-19 immunopathology and highlight NETs disruption pharmacological approaches as a potential strategy to ameliorate COVID-19 clinical outcomes.
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36
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Increased blood neutrophil extracellular traps (NETs) associated with early life stress: translational findings in recent-onset schizophrenia and rodent model. Transl Psychiatry 2022; 12:526. [PMID: 36572669 PMCID: PMC9792518 DOI: 10.1038/s41398-022-02291-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/27/2022] Open
Abstract
Higher levels of interleukin (IL)-6 and elevated neutrophil counts are consistently reported in the blood of patients with schizophrenia. Stressors during childhood and/or adolescence are major socioenvironmental risk factors for schizophrenia and may contribute to immune dysregulation. Previous studies using blood cytokines to stratify patients with schizophrenia suggest that only a subset presents a low-grade inflammatory state. However, these studies have not addressed whether environmental factors such as childhood maltreatment contributed to identifying inflammatory clusters. Moreover, a neutrophil-related mechanism (Neutrophil Extracellular Traps; NETs) central to both the initiation and chronicity of autoimmune and inflammatory diseases has never been investigated in psychiatry. Elevated NETs in schizophrenia may predispose patients to inflammatory and autoimmune diseases resulting in reduced life expectancy. We, therefore, investigated NETs as a novel mechanism and biological target in early schizophrenia and their role together with IL-6 and childhood maltreatment in identifying cluster subgroups. We found increased NETs in the plasma of patients with early schizophrenia (n = 78) compared to both their unaffected siblings (n = 25) and community controls (n = 78), irrespective of sex, body mass index, psychoactive drug use, or tobacco smoking. Increased NETs in patients were unrelated to antipsychotic treatment, which was further tested in vitro using fresh neutrophils. By applying unsupervised two-step clustering analysis, we integrated values of NETs, IL-6, and childhood maltreatment scores. We identified two main clusters; childhood maltreatment scores and NETs were the most important variables contributing to cluster separation (high-CL1 and low-CL2), while IL-6 was the least contributor. Patients allocated in the high-CL1 (61.5%) had significantly higher childhood maltreatment scores, NETs, and IL-6 levels than the remaining groups (patients low-CL2, siblings, and controls high-CL1 and low-CL2). We complemented these findings with a rat model based on stress exposure during adolescence that results in several schizophrenia-like changes in adulthood. We found that adolescent stressed rats had higher NETs and IL-6 levels in serum compared to non-stressed rats with a tendency to produce more NETs from the bone marrow. Altogether, this study brings a novel cellular-based mechanism in schizophrenia that, combined with early-stress, could be useful to identify subgroups for more personalised treatments.
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Sugimoto MA, Perucci LO, Tavares LP, Teixeira MM, Sousa LP. Fibrinolysis in COVID-19: Impact on Clot Lysis and Modulation of Inflammation. Curr Drug Targets 2022; 23:1578-1592. [PMID: 36221881 DOI: 10.2174/1389450123666221011102250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/26/2022] [Accepted: 09/14/2022] [Indexed: 01/25/2023]
Abstract
COVID-19 is a multisystem disease caused by SARS-CoV-2 and is associated with an imbalance between the coagulation and fibrinolytic systems. Overall, hypercoagulation, hypofibrinolysis and fibrin-clot resistance to fibrinolysis predispose patients to thrombotic and thromboembolic events. In the lungs, the virus triggers alveolar and interstitial fibrin deposition, endothelial dysfunction, and pulmonary intravascular coagulation, all events intrinsically associated with the activation of inflammation and organ injury. Adding to the pathogenesis of COVID-19, there is a positive feedback loop by which local fibrin deposition in the lungs can fuel inflammation and consequently dysregulates coagulation, a process known as immunothrombosis. Therefore, fibrinolysis plays a central role in maintaining hemostasis and tissue homeostasis during COVID-19 by cleaning fibrin clots and controlling feed-forward products of coagulation. In addition, components of the fibrinolytic system have important immunomodulatory roles, as evidenced by studies showing the contribution of Plasminogen/Plasmin (Plg/Pla) to the resolution of inflammation. Herein, we review clinical evidence for the dysregulation of the fibrinolytic system and discuss its contribution to thrombosis risk and exacerbated inflammation in severe COVID-19. We also discuss the current concept of an interplay between fibrinolysis and inflammation resolution, mirroring the well-known crosstalk between inflammation and coagulation. Finally, we consider the central role of the Plg/Pla system in resolving thromboinflammation, drawing attention to the overlooked consequences of COVID-19-associated fibrinolytic abnormalities to local and systemic inflammation.
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Affiliation(s)
- Michelle A Sugimoto
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Division of Medicine, University College London, London, UK.,Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Luiza O Perucci
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Nucleus of Research on Biological Sciences, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil.,Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Luciana P Tavares
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Pulmonary and Critical Care Medicine Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Mauro M Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Lirlândia P Sousa
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Dysregulated haemostasis in thrombo-inflammatory disease. Clin Sci (Lond) 2022; 136:1809-1829. [PMID: 36524413 PMCID: PMC9760580 DOI: 10.1042/cs20220208] [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: 09/03/2022] [Revised: 11/17/2022] [Accepted: 11/25/2022] [Indexed: 12/23/2022]
Abstract
Inflammatory disease is often associated with an increased incidence of venous thromboembolism in affected patients, although in most instances, the mechanistic basis for this increased thrombogenicity remains poorly understood. Acute infection, as exemplified by sepsis, malaria and most recently, COVID-19, drives 'immunothrombosis', where the immune defence response to capture and neutralise invading pathogens causes concurrent activation of deleterious prothrombotic cellular and biological responses. Moreover, dysregulated innate and adaptive immune responses in patients with chronic inflammatory conditions, such as inflammatory bowel disease, allergies, and neurodegenerative disorders, are now recognised to occur in parallel with activation of coagulation. In this review, we describe the detailed cellular and biochemical mechanisms that cause inflammation-driven haemostatic dysregulation, including aberrant contact pathway activation, increased tissue factor activity and release, innate immune cell activation and programmed cell death, and T cell-mediated changes in thrombus resolution. In addition, we consider how lifestyle changes increasingly associated with modern life, such as circadian rhythm disruption, chronic stress and old age, are increasingly implicated in unbalancing haemostasis. Finally, we describe the emergence of potential therapies with broad-ranging immunothrombotic functions, and how drug development in this area is challenged by our nascent understanding of the key molecular and cellular parameters that control the shared nodes of proinflammatory and procoagulant pathways. Despite the increasing recognition and understanding of the prothrombotic nature of inflammatory disease, significant challenges remain in effectively managing affected patients, and new therapeutic approaches to curtail the key pathogenic steps in immune response-driven thrombosis are urgently required.
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Thompson-Souza GA, Vasconcelos CRI, Neves JS. Eosinophils: Focus on DNA extracellular traps. Life Sci 2022; 311:121191. [DOI: 10.1016/j.lfs.2022.121191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
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40
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Wirkner A, Vogelgesang A, Hegge I, Lange A, Olbertz DM, Gerber B, Heckmann M, Ruhnau J. Preterm ETs Are Significantly Reduced Compared with Adults and Partially Reduced Compared with Term Infants. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9101522. [PMID: 36291458 PMCID: PMC9600659 DOI: 10.3390/children9101522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/21/2022] [Accepted: 09/30/2022] [Indexed: 11/22/2022]
Abstract
The release of DNA by cells during extracellular trap (ET) formation is a defense function of neutrophils and monocytes. Neutrophil ET (NET) formation in term infants is reduced compared to adults. Objective: The aim was to quantify NET and monocyte ET (MET) release and the respective key enzymes myeloperoxidase (MPO) and neutrophil elastase (NE) in preterm infants. In this prospective explorative study, ET induction was stimulated by N-formylmethionine-leucyl-phenylalanine (fMLP), phorbol 12-myristate 13-acetate (PMA), lipopolysaccharide (LPS), and lipoteichoic acid (LTA) in the cord blood of preterm infants (n = 55, 23-36 weeks) compared to term infants and adults. METs were quantified by microscopy, and NETs by microscopy and flow cytometry. We also determined the MPO levels within NETs and the intracellular concentrations of NE and MPO in neutrophils. The percentage of neutrophils releasing ET was significantly reduced for preterm infants compared to adults for all stimulants, and with a 68% further reduction for PMA compared to term infants (p = 0.0141). The NET area was not reduced except for when fMLP was administered. The amount of MPO in NET-producing cells was reduced in preterm infants compared to term infants. For preterm infants, but not term infants, the percentage of monocytes releasing ETs was significantly reduced compared to healthy adults for LTA and LPS stimulation. Conclusion: In preterm infants, ETs are measurable parts of the innate immune system, but are released in a reduced percentage of cells compared to adults.
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Affiliation(s)
- Aila Wirkner
- Department of Neonatology and Pediatric Intensive Care, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Antje Vogelgesang
- Department of Neurology, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Ines Hegge
- Department of Neonatology and Pediatric Intensive Care, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Anja Lange
- Department of Neonatology and Pediatric Intensive Care, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Dirk Manfred Olbertz
- Department of Neonatology, South Clinic, University Rostock, 18059 Rostock, Germany
| | - Bernd Gerber
- Department of Obstetrics and Gynecology, South Clinic, University Rostock, 18059 Rostock, Germany
| | - Matthias Heckmann
- Department of Neonatology and Pediatric Intensive Care, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Johanna Ruhnau
- Department of Neurology, University Medicine Greifswald, 17475 Greifswald, Germany
- Correspondence:
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41
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Ngo ATP, Gollomp K. Building a better
NET
: Neutrophil extracellular trap targeted therapeutics in the treatment of infectious and inflammatory disorders. Res Pract Thromb Haemost 2022. [DOI: 10.1002/rth2.12808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Anh T. P. Ngo
- Division of Hematology Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
| | - Kandace Gollomp
- Division of Hematology Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
- Department of Pediatrics, Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
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42
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NAT10 regulates neutrophil pyroptosis in sepsis via acetylating ULK1 RNA and activating STING pathway. Commun Biol 2022; 5:916. [PMID: 36068299 PMCID: PMC9448771 DOI: 10.1038/s42003-022-03868-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 08/22/2022] [Indexed: 11/28/2022] Open
Abstract
Emerging evidence suggests that pyroptosis is involved in sepsis. However, the role of neutrophil pyroptosis in sepsis and the mechanisms remains elusive. We find that N-acetyltransferase 10 (NAT10), an acetyltransferase responsible for the N4-acetylation of Cytidine (ac4C) in mRNA, is significantly downregulated in neutrophils from septic mice. Neutrophil-specific over-expression of NAT10 improves the survival and ameliorates lung injury in septic mice by inhibiting neutrophil pyroptosis. Notably, UNC-52-like kinase 1 (ULK1) is identified as the target of NAT10 in neutrophils. The decreased expression of NAT10 resultes in the decay of ULK1 transcripts and therefore the reduced expression of ULK1. As a regulator of STING phosphorylation, the loss of ULK1 enhances the activation of STING-IRF3 signaling and subsequently the elevated pyroptosis-inducing NLRP3 inflammasome in neutrophils. While over-expression of NAT10 restrains pyroptosis in neutrophils as well as septic lethality in mice by reversing the ULK1-STING-NLRP3 axis. The decreased expression of NAT10 are also observed in sepsis patients and its correlation with clinical severity is found. Collectively, our findings disclose that NAT10 is a negative regulator of neutrophil pyroptosis and its downregulation contributes to the progress of sepsis by exacerbating pyroptosis via the ULK1-STING-NLRP3 axis, therefore revealing a potential therapeutic target for sepsis. The enzyme N-acetyltransferase NAT10 is a negative regulator of neutrophil pyroptosis and its downregulation contributes to the progress of sepsis by exacerbating pyroptosis via the ULK1-STING-NLRP3 pathway.
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The phytoactive constituents of Eugenia selloi B.D. Jacks (pitangatuba): Toxicity and elucidation of their anti-inflammatory mechanism(s) of action. FOOD CHEMISTRY: MOLECULAR SCIENCES 2022; 4:100093. [PMID: 35415693 PMCID: PMC8991978 DOI: 10.1016/j.fochms.2022.100093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 11/20/2022]
Abstract
Purified subfraction from Eugenia selloi fruit, showed anti-inflammatory activity. It were identified isomers of quercetrin, vanillic acid, and coumaric acid. S8 reduced NF-κB, IL-1β, IL-6, IL-10, MDC and MCP-1 levels in macrophages. S8 reduced neutrophil migration and ICAM-1 expression in mice. S8 showed scavenging capacity against ROO•, HOCl and NO• biological radicals.
We determined the phytochemical composition, anti-inflammatory mechanism of action, ROS/RNS scavenging capacity and systemic toxicity of a purified subfraction (S8) of Eugenia selloi. The composition of S8 was assessed by LC-ESI-QTOF-MS; the anti-inflammatory activity in RAW264.7 macrophages through NF-κB activation and biomarkers by multiplex in THP-1 cells; neutrophil migration, intravital microscopy and ICAM-1 expression in mice; NETs formation and CD11b expression; S8 scavenging capacity of ROS/RNS; toxicity in Galleria mellonella larvae model. Coumaric acid, quercetrin and vanillic acid were identified. S8 decreased NF-κB activation, IL-1β, IL-6, IL-10, MDC and MCP-1 levels, reduced neutrophil migration and ICAM-1 expression in mice; S8 did not interfere NET formation and CD11b expression, exhibited high antioxidant and showed negligible toxicity. E. selloi proved to be a promising, yet underexplored source of bioactive compounds, which can be useful employed in agribusiness and in the pharmaceutical and food industry to develop new products or human health supplies.
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Artemisinin inhibits neutrophil and macrophage chemotaxis, cytokine production and NET release. Sci Rep 2022; 12:11078. [PMID: 35773325 PMCID: PMC9245885 DOI: 10.1038/s41598-022-15214-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/21/2022] [Indexed: 12/26/2022] Open
Abstract
Immune cell chemotaxis to the sites of pathogen invasion is critical for fighting infection, but in life-threatening conditions such as sepsis and Covid-19, excess activation of the innate immune system is thought to cause a damaging invasion of immune cells into tissues and a consequent excessive release of cytokines, chemokines and neutrophil extracellular traps (NETs). In these circumstances, tempering excessive activation of the innate immune system may, paradoxically, promote recovery. Here we identify the antimalarial compound artemisinin as a potent and selective inhibitor of neutrophil and macrophage chemotaxis induced by a range of chemotactic agents. Artemisinin released calcium from intracellular stores in a similar way to thapsigargin, a known inhibitor of the Sarco/Endoplasmic Reticulum Calcium ATPase pump (SERCA), but unlike thapsigargin, artemisinin blocks only the SERCA3 isoform. Inhibition of SERCA3 by artemisinin was irreversible and was inhibited by iron chelation, suggesting iron-catalysed alkylation of a specific cysteine residue in SERCA3 as the mechanism by which artemisinin inhibits neutrophil motility. In murine infection models, artemisinin potently suppressed neutrophil invasion into both peritoneum and lung in vivo and inhibited the release of cytokines/chemokines and NETs. This work suggests that artemisinin may have value as a therapy in conditions such as sepsis and Covid-19 in which over-activation of the innate immune system causes tissue injury that can lead to death.
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45
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Huang Z, Zhang H, Fu X, Han L, Zhang H, Zhang L, Zhao J, Xiao D, Li H, Li P. Autophagy-driven neutrophil extracellular traps: The dawn of sepsis. Pathol Res Pract 2022; 234:153896. [PMID: 35462228 DOI: 10.1016/j.prp.2022.153896] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 03/28/2022] [Accepted: 04/11/2022] [Indexed: 12/12/2022]
Abstract
Sepsis is a systemic inflammatory syndrome caused by infection disorders. The core mechanism of sepsis is immune dysfunction. Neutrophils are the most abundant circulating white blood cells, which play a crucial role in mediating the innate immune response. Previous studies have shown that an effective way to treat sepsis is through the regulation of neutrophil functions. Autophagy, a highly conserved degradation process, is responsible for removing denatured proteins or damaged organelles within cells and protecting cells from external stimuli. It is a key homeostasis process that promotes neutrophil function and differentiation. Autophagy has been shown to be closely associated with inflammation and immunity. Neutrophils, the first line of innate immunity, migrate to inflammatory sites upon their activation. Neutrophil-mediated autophagy may participate in the clinical course of sepsis. In this review, we summarized and analyzed the latest research findings on the changes in neutrophil external traps during sepsis, the regulatory role of autophagy in neutrophil, and the potential application of autophagy-driven NETs in sepsis, so as to guide clinical treatment of sepsis.
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Affiliation(s)
- Zhenzhen Huang
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Haodong Zhang
- Department of Hypertension Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Xu Fu
- Key Laboratory of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Li Han
- Key Laboratory of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Haidan Zhang
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Ling Zhang
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Jing Zhao
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Danyang Xiao
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Hongyao Li
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Peiwu Li
- Department of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China.
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Mandel J, Casari M, Stepanyan M, Martyanov A, Deppermann C. Beyond Hemostasis: Platelet Innate Immune Interactions and Thromboinflammation. Int J Mol Sci 2022; 23:ijms23073868. [PMID: 35409226 PMCID: PMC8998935 DOI: 10.3390/ijms23073868] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 02/07/2023] Open
Abstract
There is accumulating evidence that platelets play roles beyond their traditional functions in thrombosis and hemostasis, e.g., in inflammatory processes, infection and cancer, and that they interact, stimulate and regulate cells of the innate immune system such as neutrophils, monocytes and macrophages. In this review, we will focus on platelet activation in hemostatic and inflammatory processes, as well as platelet interactions with neutrophils and monocytes/macrophages. We take a closer look at the contributions of major platelet receptors GPIb, αIIbβ3, TLT-1, CLEC-2 and Toll-like receptors (TLRs) as well as secretions from platelet granules on platelet-neutrophil aggregate and neutrophil extracellular trap (NET) formation in atherosclerosis, transfusion-related acute lung injury (TRALI) and COVID-19. Further, we will address platelet-monocyte and macrophage interactions during cancer metastasis, infection, sepsis and platelet clearance.
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Affiliation(s)
- Jonathan Mandel
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany; (J.M.); (M.C.); (M.S.)
| | - Martina Casari
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany; (J.M.); (M.C.); (M.S.)
| | - Maria Stepanyan
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany; (J.M.); (M.C.); (M.S.)
- Center For Theoretical Problems of Physico-Chemical Pharmacology, 109029 Moscow, Russia;
- Physics Faculty, Lomonosov Moscow State University, 119991 Moscow, Russia
- Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology Immunology Ministry of Healthcare of Russian Federation, 117198 Moscow, Russia
| | - Alexey Martyanov
- Center For Theoretical Problems of Physico-Chemical Pharmacology, 109029 Moscow, Russia;
- Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology Immunology Ministry of Healthcare of Russian Federation, 117198 Moscow, Russia
- N.M. Emanuel Institute of Biochemical Physics RAS (IBCP RAS), 119334 Moscow, Russia
| | - Carsten Deppermann
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany; (J.M.); (M.C.); (M.S.)
- Correspondence:
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Liu J, Liu Z, Pang Y, Zhou H. The interaction between nanoparticles and immune system: application in the treatment of inflammatory diseases. J Nanobiotechnology 2022; 20:127. [PMID: 35279135 PMCID: PMC8917374 DOI: 10.1186/s12951-022-01343-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/02/2022] [Indexed: 12/24/2022] Open
Abstract
Nanoparticle (NP) is an emerging tool applied in the biomedical field. With combination of different materials and adjustment of their physical and chemical properties, nanoparticles can have diverse effects on the organism and may change the treating paradigm of multiple diseases in the future. More and more results show that nanoparticles can function as immunomodulators and some formulas have been approved for the treatment of inflammation-related diseases. However, our current understanding of the mechanisms that nanoparticles can influence immune responses is still limited, and systemic clinical trials are necessary for the evaluation of their security and long-term effects. This review provides an overview of the recent advances in nanoparticles that can interact with different cellular and molecular components of the immune system and their application in the management of inflammatory diseases, which are caused by abnormal immune reactions. This article focuses on the mechanisms of interaction between nanoparticles and the immune system and tries to provide a reference for the future design of nanotechnology for the treatment of inflammatory diseases.
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48
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Maronek M, Gardlik R. The Citrullination-Neutrophil Extracellular Trap Axis in Chronic Diseases. J Innate Immun 2022; 14:393-417. [PMID: 35263752 PMCID: PMC9485962 DOI: 10.1159/000522331] [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: 10/31/2021] [Accepted: 01/25/2022] [Indexed: 11/19/2022] Open
Abstract
Citrullination of proteins is crucial for the formation of neutrophil extracellular traps (NETs) − strands of nuclear DNA expulsed in the extracellular environment along with antimicrobial proteins in order to halt the spread of pathogens. Paradoxically, NETs may be immunogenic and contribute to inflammation. It is known that for the externalization of DNA, a group of enzymes called peptidyl arginine deiminases (PADs) is required. Current research often looks at citrullination, NET formation, PAD overexpression, and extracellular DNA (ecDNA) accumulation in chronic diseases as separate events. In contrast, we propose that citrullination can be viewed as the primary mechanism of autoimmunity, for instance by the formation of anti-citrullinated protein antibodies (ACPAs) but also as a process contributing to chronic inflammation. Therefore, citrullination could be at the center, connecting and impacting multiple inflammatory diseases in which ACPAs, NETs, or ecDNA have already been documented. In this review, we aimed to highlight the importance of citrullination in the etiopathogenesis of a number of chronic diseases and to explore the diagnostic, prognostic, and therapeutic potential of the citrullination-NET axis.
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Affiliation(s)
- Martin Maronek
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Roman Gardlik
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
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Stojkov D, Gigon L, Peng S, Lukowski R, Ruth P, Karaulov A, Rizvanov A, Barlev NA, Yousefi S, Simon HU. Physiological and Pathophysiological Roles of Metabolic Pathways for NET Formation and Other Neutrophil Functions. Front Immunol 2022; 13:826515. [PMID: 35251008 PMCID: PMC8889909 DOI: 10.3389/fimmu.2022.826515] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/20/2022] [Indexed: 12/12/2022] Open
Abstract
Neutrophils are the most numerous cells in the leukocyte population and essential for innate immunity. To limit their effector functions, neutrophils are able to modulate glycolysis and other cellular metabolic pathways. These metabolic pathways are essential not only for energy usage, but also for specialized effector actions, such as the production of reactive oxygen species (ROS), chemotaxis, phagocytosis, degranulation, and the formation of neutrophil extracellular traps (NETs). It has been demonstrated that activated viable neutrophils can produce NETs, which consists of a DNA scaffold able to bind granule proteins and microorganisms. The formation of NETs requires the availability of increased amounts of adenosine triphosphate (ATP) as it is an active cellular and therefore energy-dependent process. In this article, we discuss the glycolytic and other metabolic routes in association with neutrophil functions focusing on their role for building up NETs in the extracellular space. A better understanding of the requirements of metabolic pathways for neutrophil functions may lead to the discovery of molecular targets suitable to develop novel anti-infectious and/or anti-inflammatory drugs.
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Affiliation(s)
- Darko Stojkov
- Institute of Pharmacology, University of Bern, Bern, Switzerland.,Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Lea Gigon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Shuang Peng
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Robert Lukowski
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Peter Ruth
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Alexander Karaulov
- Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia
| | - Albert Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Nickolai A Barlev
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia.,Regulation of Cell Signaling Laboratory, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland.,Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia.,Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia.,Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany
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Reduction of NETosis by targeting CXCR1/2 reduces thrombosis, lung injury, and mortality in experimental human and murine sepsis. Br J Anaesth 2022; 128:283-293. [PMID: 34893315 PMCID: PMC8792833 DOI: 10.1016/j.bja.2021.10.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 10/06/2021] [Accepted: 10/16/2021] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Neutrophil extracellular traps (NETs) facilitate bacterial clearance but also promote thrombosis and organ injury in sepsis. We quantified ex vivo NET induction in septic humans and murine models of sepsis to identify signalling pathways that may be modulated to improve outcome in human sepsis. METHODS NET formation in human donor neutrophils was quantified after incubation with plasma obtained from patients with sepsis or systemic inflammation (double-blinded assessment of extracellular DNA using immunofluorescence microscopy). NET formation (% neutrophils forming NETs) was correlated with plasma cytokine levels (MultiPlex assay). Experimental sepsis (caecal ligation and puncture or intraperitoneal injection of Escherichia coli) was assessed in C57/BL6 male mice. The effect of pharmacological inhibition of CXCR1/2 signalling (reparixin) on NET formation, organ injury (hepatic, renal, and cardiac biomarkers), and survival in septic mice was examined. RESULTS NET formation was higher after incubation with plasma from septic patients (median NETs=25% [10.5-46.5%]), compared with plasma obtained from patients with systemic inflammation (14% [4.0-23.3%]; P=0.02). Similar results were observed after incubation of plasma from mice with neutrophils from septic non-septic mice. Circulating CXCR1/2 ligands correlated with NETosis in patients (interleukin-8; r=0.643) and mice (macrophage inflammatory protein-2; r=0.902). In experimental sepsis, NETs were primarily observed in the lungs, correlating with fibrin deposition (r=0.702) and lung injury (r=0.692). Inhibition of CXCR1/2 using reparixin in septic mice reduced NET formation, multi-organ injury, and mortality, without impairing bacterial clearance. CONCLUSION CXCR1/2 signalling-induced NET formation is a therapeutic target in sepsis, which may be guided by ex vivo NET assays.
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