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Shen S, Nan W, Zhang W, Wu H, Zhang Y. Bone morphogenetic protein 4 inhibits corneal neovascularization by blocking NETs-induced disruption to corneal epithelial barrier. Int Immunopharmacol 2024; 142:113023. [PMID: 39217886 DOI: 10.1016/j.intimp.2024.113023] [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: 03/30/2024] [Revised: 08/01/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Corneal neovascularization (CoNV) is the second leading cause of visual impairment worldwide, and current drugs have certain limitations. Inflammatory response is the core pathological process of CoNV. Neutrophil extracellular traps (NETs) are generated after neutrophil activation, which promotes neovascularization. Prior studies demonstrated that bone morphogenetic protein 4 (BMP4) could significantly reduce inflammation and CoNV formation, its exact molecular mechanism remains unclear. Therefore, we stimulated human peripheral blood neutrophils with phorbol myristate acetate (PMA) or deoxyribonuclease I (DNase I) to induce or inhibit NETs formation. By using corneal sutures and subconjunctival injections of NETs or DNase I, rat CoNV models were established. Compared with the suture group, NETs formation and inflammatory cell infiltration in the corneal stroma were significantly increased, corneal edema was aggravated, and the length, area and diameter of CoNV were significantly enhanced in the NETs group. Furthermore, by curetting the corneal epithelial apical junctional complexes (AJCs), a crucial component in preserving the function of the corneal epithelial barrier, we discovered that the damage of AJCs had a significant role in inducing CoNV formation. NETs could induce CoNV formation by injuring corneal epithelial AJCs. Finally, by comparing the aforementioned indicators after the intervention of BMP4, BMP4 inhibitor Noggin and NADPH oxidase (NOX) inhibitor, we finally demonstrated that BMP4 could inhibit NETs-induced inflammation and corneal epithelial AJC injury, repair corneal epithelial barrier function and eventually inhibit CoNV formation by blocking NOX-2-dependent NETs formation.
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Affiliation(s)
- Sitong Shen
- Department of Ophthalmology, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, Jilin Province 130041, China
| | - Weijin Nan
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Wenxin Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, Jilin Province 130041, China
| | - Hong Wu
- Department of Ophthalmology, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, Jilin Province 130041, China
| | - Yan Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, Jilin Province 130041, China; Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China.
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2
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Zhang S, Liu Y, Jin S, Xia T, Song H, Cao C, Liao Y, Pan R, Yan M, Chang Q. Exploration of novel human neutrophil elastase inhibitors from natural compounds: Virtual screening, in vitro, molecular dynamics simulation and in vivo study. Eur J Pharmacol 2024; 982:176825. [PMID: 39159715 DOI: 10.1016/j.ejphar.2024.176825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 07/02/2024] [Accepted: 07/18/2024] [Indexed: 08/21/2024]
Abstract
BACKGROUND Human neutrophil elastase (HNE) is an important contributor to lung diseases such as acute lung injury (ALI) or acute respiratory distress syndrome. Therefore, this study aimed to identify natural HNE inhibitors with anti-inflammatory activity through machine learning algorithms, in vitro assays, molecular dynamic simulation, and an in vivo ALI assay. METHODS Based on the optimized Discovery Studio two-dimensional molecular descriptors, combined with different molecular fingerprints, six machine learning models were established using the Naïve Bayesian (NB) method to identify HNE inhibitors. Subsequently, the optimal model was utilized to screen 6925 drug-like compounds obtained from the Traditional Chinese Medicine Systems Pharmacy Database and Analysis Platform (TCMSP), followed by ADMET analysis. Finally, 10 compounds with reported anti-inflammatory activity were selected to determine their inhibitory activities against HNE in vitro, and the compounds with the best activity were selected for a 100 ns molecular dynamics simulation and its anti-inflammatory effect was evaluated using Poly (I:C)-induced ALI model. RESULTS The evaluation of the in vitro HNE inhibition efficiency of the 10 selected compounds showed that the flavonoid tricetin had the strongest inhibitory effect on HNE. The molecular dynamics simulation indicated that the binding of tricetin to HNE was relatively stable throughout the simulation. Importantly, in vivo experiments indicated that tricetin treatment substantially improved the Poly (I:C)-induced ALI. CONCLUSION The proposed NB model was proved valuable for exploring novel HNE inhibitors, and natural tricetin was screened out as a novel HNE inhibitor, which was confirmed by in vitro and in vivo assays for its inhibitory activities.
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Affiliation(s)
- Shanshan Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Yongguang Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Suwei Jin
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Tianji Xia
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Hongbin Song
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Chenxi Cao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Yonghong Liao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Ruile Pan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Mingzhu Yan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Qi Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
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Ma Q, Sun J, Liu Q, Fu J, Wen Y, Zhang F, Wu Y, Zhang X, Gong L, Zhang W. Identification of a biomarker to predict doxorubicin/cisplatin chemotherapy efficacy in osteosarcoma patients using primary, recurrent and metastatic specimens. Transl Oncol 2024; 49:102098. [PMID: 39153366 PMCID: PMC11381801 DOI: 10.1016/j.tranon.2024.102098] [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: 05/14/2024] [Revised: 07/23/2024] [Accepted: 08/11/2024] [Indexed: 08/19/2024] Open
Abstract
BACKGROUND Doxorubicin and cisplatin are both first-line chemotherapeutics for osteosarcoma (OS) treatment. However, the efficacy of doxorubicin/cisplatin chemotherapy varies considerably. Thus, identifying an efficient diagnostic biomarker to distinguish patients with good and poor responses to doxorubicin/cisplatin chemotherapy is of paramount importance. METHODS To predict the efficacy of doxorubicin/cisplatin chemotherapy, we analyzed the differentially expressed proteins in 37 resected OS samples, which were categorized into the primary group (PG), the recurrent group (RG) and the metastatic group (MG). The characteristics of the enriched differentially expressed proteins were assessed via GO and KEGG analyses. Protein‒protein interactions were identified to determine the relationships among the differentially expressed proteins. Receiver operating characteristic (ROC) curve analyses were performed to explore the clinical significance of the differentially expressed proteins. Parallel reaction monitoring (PRM) was used to validate the candidate proteins. Immunohistochemical (IHC) staining was performed to confirm the expression of cathepsin (CTSG) in patients with good and poor response to doxorubicin/cisplatin. RESULTS A total of 9458 proteins were identified and quantified, among which 143 and 208 exhibited significant changes (|log2FC|>1, p < 0.05) in the RG and MG compared with the PG, respectively. GO and KEGG enrichment led to the identification of neutrophil extracellular traps (NETs). ROC curve analyses revealed 74 and 86 proteins with areas under the curve greater than 0.7 in the RG and MG, respectively. PRM validation revealed the statistical significance of CTSG, which is involved in NET formation, at the protein level in both the RG and MG. IHC staining of another cohort revealed that CTSG was prominently upregulated in the poor response group after treatment with doxorubicin/cisplatin. CONCLUSION CTSG and its associated NETs are potential biomarkers with which the efficacy of doxorubicin/cisplatin chemotherapy could be predicted in OS patients.
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Affiliation(s)
- Qiong Ma
- Department of Pathology, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China; Orthopedic Oncology Institute, Department of Orthopedic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China
| | - Jin Sun
- Orthopedic Oncology Institute, Department of Orthopedic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China
| | - Qiao Liu
- Department of Pathology, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China
| | - Jin Fu
- Department of Pathology, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China
| | - Yanhua Wen
- Orthopedic Oncology Institute, Department of Orthopedic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China
| | - Fuqin Zhang
- Department of Pathology, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China
| | - Yonghong Wu
- Orthopedic Oncology Institute, Department of Orthopedic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China
| | - Xiaoyu Zhang
- Orthopedic Oncology Institute, Department of Orthopedic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China
| | - Li Gong
- Department of Pathology, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China.
| | - Wei Zhang
- Department of Pathology, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an 710038, China.
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Downs CJ, Sobolewski ME. The Promise of a Pointillist Perspective for Comparative Immunology. Physiology (Bethesda) 2024; 39:0. [PMID: 38808754 DOI: 10.1152/physiol.00012.2024] [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: 02/20/2024] [Revised: 05/16/2024] [Accepted: 05/27/2024] [Indexed: 05/30/2024] Open
Abstract
Most studies in comparative immunology involve investigations into the detailed mechanisms of the immune system of a nonmodel organism. Although this approach has been insightful, it has promoted a deep understanding of only a handful of species, thus inhibiting the recognition of broad taxonomic patterns. Here, we call for investigating the immune defenses of numerous species within a pointillist framework, that is, the meticulous, targeted collection of data from dozens of species and investigation of broad patterns of organismal, ecological, and evolutionary forces shaping those patterns. Without understanding basic immunological patterns across species, we are limited in our ability to extrapolate and/or translate our findings to other organisms, including humans. We illustrate this point by focusing predominantly on the biological scaling literature with some integrations of the pace of life literature, as these perspectives have been the most developed within this framework. We also highlight how the more traditional approach in comparative immunology works synergistically with a pointillist approach, with each approach feeding back into the other. We conclude that the pointillist approach promises to illuminate comprehensive theories about the immune system and enhance predictions in a wide variety of domains, including host-parasite dynamics and disease ecology.
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Affiliation(s)
- Cynthia J Downs
- Department of Environmental Biology, State University of New York College of Environmental Science and Forestry, Syracuse, New York, United States
| | - Marissa E Sobolewski
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York, United States
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Li S, Xu G, Guo Z, Liu Y, Ouyang Z, Li Y, Huang Y, Sun Q, Giri BR, Fu Q. Deficiency of hasB accelerated the clearance of Streptococcus equi subsp. Zooepidemicus through gasdermin d-dependent neutrophil extracellular traps. Int Immunopharmacol 2024; 140:112829. [PMID: 39083933 DOI: 10.1016/j.intimp.2024.112829] [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: 04/20/2024] [Revised: 07/23/2024] [Accepted: 07/26/2024] [Indexed: 08/02/2024]
Abstract
Streptococcus equi subsp. zooepidemicus (S. zooepidemicus, SEZ) is an essential zoonotic bacterial pathogen that can cause various inflammation, such as meningitis, endocarditis, and pneumonia. UDP-glucose dehydrogenase (hasB) is indispensable in synthesizing SEZ virulence factor hyaluronan capsules. Our study investigated the infection of hasB on mice response to SEZ by employing a constructed capsule-deficient mutant strain designated as the ΔhasB strain. This deficiency was associated with a reduced SEZ bacterial load in the mice's blood and peritoneal lavage fluid (PLF) post-infection. Besides, the ΔhasB SEZ strain exhibited a higher propensity for neutrophil infiltration and release of cell-free DNA (cfDNA) in vivo compared to the wild-type (WT) SEZ strain. In vitro experiments further revealed that ΔhasB SEZ more effectively induced the formation of neutrophil extracellular traps (NETs) containing histone 3 (H3), neutrophil elastase (NE), and DNA, than its WT counterpart. Moreover, the release of NETs was determined to be gasdermin D (GSDMD)-dependent during the infection process. Taken together, these findings underscore that the deficiency of the hasB gene in SEZ leads to enhanced GSDMD-dependent NET release from neutrophils, thereby reducing SEZ's capacity to resist NETs-mediated eradication during infection. Our finding paves the way for the development of innovative therapeutic strategies against SEZ.
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Affiliation(s)
- Shun Li
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Foshan, Guangdong, China
| | - Guobin Xu
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong, China
| | - Zheng Guo
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong, China
| | - Yuxuan Liu
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong, China
| | - Zhiliang Ouyang
- Houjie Town Agricultural Technology Service Center, Dongguan, Guangdong, China
| | - Yajuan Li
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Foshan, Guangdong, China
| | - Yunfei Huang
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Foshan, Guangdong, China
| | - Qinqin Sun
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Foshan, Guangdong, China
| | - Bikash R Giri
- Department of Zoology, K.K.S. Women's College, Balasore, Odisha, India
| | - Qiang Fu
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Foshan, Guangdong, China.
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6
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Fan R, Li Q, Jiang N, Zhang Y, Yu L, Zheng Y, Su Z, Zhang N, Chen R, Feng Y, Sang X, Chen Q. Plasmodium berghei TatD-like DNase hijacks host innate immunity by inhibiting the TLR9-NF-κB pathway. Int Immunopharmacol 2024; 140:112843. [PMID: 39098224 DOI: 10.1016/j.intimp.2024.112843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/28/2024] [Accepted: 07/29/2024] [Indexed: 08/06/2024]
Abstract
Neutrophils and macrophages confine pathogens by entrapping them in extracellular traps (ETs) through activating TLR9 function. However, plasmodial parasites secreted TatD-like DNases (TatD) to counteract ETs-mediated immune clearance. We found that TLR9 mutant mice increased susceptibility to rodent malaria, suggesting TLR9 is a key protein for host defense. We found that the proportion of neutrophils and macrophages in response to plasmodial parasite infection in the TLR9 mutant mice was significantly reduced compared to that of the WT mice. Importantly, PbTatD can directly bind to the surface TLR9 (sTLR9) on macrophages, which blocking the phosphorylation of mitogen-activated protein kinase and nuclear factor-κB, negatively regulated the signaling of ETs formation by both macrophages and neutrophils. Such, P. berghei TatD is a parasite virulence factor that can inhibit the proliferation of macrophages and neutrophils through directly binding to TLR9 receptors on the cell surface, thereby blocking the activation of the downstream MyD88-NF-kB pathways.
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Affiliation(s)
- Ruiming Fan
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Qilong Li
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Ning Jiang
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Yiwei Zhang
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Liying Yu
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Yuxin Zheng
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Ziwei Su
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Naiwen Zhang
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Ran Chen
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Ying Feng
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Xiaoyu Sang
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China
| | - Qijun Chen
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Afairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110866, China; Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, 120 Dongling Road, Shenyang 110866, China.
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7
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Liang P, Zhu M, Sun X, Wang L, Li B, Ming S, Younis M, Yang J, Wu Y, Huang X. LncRNA-mRNA co-expression analysis reveals aquaporin-9-promoted neutrophil extracellular trap formation and inflammatory activation in sepsis. Int Immunopharmacol 2024; 140:112916. [PMID: 39133961 DOI: 10.1016/j.intimp.2024.112916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/29/2024] [Accepted: 08/06/2024] [Indexed: 09/01/2024]
Abstract
Sepsis is a life-threatening condition caused by an excessive inflammatory response to an infection. However, the precise regulatory mechanism of sepsis remains unclear. Using a strand-specific RNA-sequencing, we identified 115 hub differentially expressed long noncoding RNAs (lncRNAs) and 443 mRNAs in septic patients, primarily participated in crucial pathways including neutrophil extracellular trap (NET) formation and toll-like receptor signaling. Notably, NETs related gene aquaporin-9 (AQP9) and its associated lncRNAs exhibited significant upregulation in septic neutrophils. Functional experiments revealed AQP9 interacts with its lncRNAs to augment the formation of neutrophil NETs. In murine sepsis models, AQP9 inhibition with phloretin reduced proinflammatory cytokine production and lung damage. These findings provide crucial insights into the regulatory role of AQP9 in sepsis, unraveling its interaction with associated lncRNAs in transmitting downstream signals, holding promise in informing the development of novel therapeutic strategies aimed at ameliorating the debilitating effects of sepsis.
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Affiliation(s)
- Pingping Liang
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China; Key Laboratory of Traditional Chinese Medicine for the Prevention and Treatment of Infectious Diseases, Traditional Chinese Medicine Bureau of Guangdong Province, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Manman Zhu
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong 519000, China
| | - Xingzi Sun
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Li Wang
- Department of Obstetrics and Gynecology, Perinatal Medical Center, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Bin Li
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Siqi Ming
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Muhammad Younis
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - Jianhua Yang
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Yongjian Wu
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China; Key Laboratory of Traditional Chinese Medicine for the Prevention and Treatment of Infectious Diseases, Traditional Chinese Medicine Bureau of Guangdong Province, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China.
| | - Xi Huang
- Center for Infection and Immunity and Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China; Key Laboratory of Traditional Chinese Medicine for the Prevention and Treatment of Infectious Diseases, Traditional Chinese Medicine Bureau of Guangdong Province, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China.
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8
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Arteel GE, Gao B. When alcohol and fat meet, neutrophil traps form to promote liver injury. Gut 2024; 73:1778-1779. [PMID: 38969487 PMCID: PMC11458347 DOI: 10.1136/gutjnl-2024-332514] [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: 05/29/2024] [Accepted: 06/11/2024] [Indexed: 07/07/2024]
Affiliation(s)
- Gavin E Arteel
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
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9
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Shteinfer-Kuzmine A, Verma A, Bornshten R, Ben Chetrit E, Ben-Ya'acov A, Pahima H, Rubin E, Mograbi Y, Shteyer E, Shoshan-Barmatz V. Elevated serum mtDNA in COVID-19 patients is linked to SARS-CoV-2 envelope protein targeting mitochondrial VDAC1, inducing apoptosis and mtDNA release. Apoptosis 2024:10.1007/s10495-024-02025-5. [PMID: 39375263 DOI: 10.1007/s10495-024-02025-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2024] [Indexed: 10/09/2024]
Abstract
Mitochondria dysfunction is implicated in cell death, inflammation, and autoimmunity. During viral infections, some viruses employ different strategies to disrupt mitochondria-dependent apoptosis, while others, including SARS-CoV-2, induce host cell apoptosis to facilitate replication and immune system modulation. Given mitochondrial DNAs (mtDNA) role as a pro-inflammatory damage-associated molecular pattern in inflammatory diseases, we examined its levels in the serum of COVID-19 patients and found it to be high relative to levels in healthy donors. Furthermore, comparison of serum protein profiles between healthy individuals and SARS-CoV-2-infected patients revealed unique bands in the COVID-19 patients. Using mass spectroscopy, we identified over 15 proteins, whose levels in the serum of COVID-19 patients were 4- to 780-fold higher. As mtDNA release from the mitochondria is mediated by the oligomeric form of the mitochondrial-gatekeeper-the voltage-dependent anion-selective channel 1 (VDAC1)-we investigated whether SARS-CoV-2 protein alters VDAC1 expression. Among the three selected SARS-CoV-2 proteins, small envelope (E), nucleocapsid (N), and accessory 3b proteins, the E-protein induced VDAC1 overexpression, VDAC1 oligomerization, cell death, and mtDNA release. Additionally, this protein led to mitochondrial dysfunction, as evidenced by increased mitochondrial ROS production and cytosolic Ca2+ levels. These findings suggest that SARS-CoV-2 E-protein induces mitochondrial dysfunction, apoptosis, and mtDNA release via VDAC1 modulation. mtDNA that accumulates in the blood activates the cGAS-STING pathway, triggering inflammatory cytokine and chemokine expression that contribute to the cytokine storm and tissue damage seen in cases of severe COVID-19.
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Affiliation(s)
| | - Ankit Verma
- National Institute for Biotechnology in the Negev, Beer-Sheva, Israel
- Department of Life Sciences, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel
| | - Rut Bornshten
- The Shraga Segal Dept. of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel
| | - Eli Ben Chetrit
- Infectious Diseases Unit, Shaare Zedek Medical Center, Hebrew University School of Medicine, Jerusalem, Israel
| | - Ami Ben-Ya'acov
- Shaare Zedek Medical Center, The Juliet Keidan Institute of Paediatric Gastroenterology, Jerusalem, Israel
| | - Hadas Pahima
- Department of Life Sciences, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel
| | - Ethan Rubin
- The Shraga Segal Dept. of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel
- Shaare Zedek Medical Center, The Juliet Keidan Institute of Paediatric Gastroenterology, Jerusalem, Israel
| | | | - Eyal Shteyer
- Shaare Zedek Medical Center, The Juliet Keidan Institute of Paediatric Gastroenterology, Jerusalem, Israel
| | - Varda Shoshan-Barmatz
- National Institute for Biotechnology in the Negev, Beer-Sheva, Israel.
- Department of Life Sciences, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel.
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10
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Fang JX, Zou HM, Meng J, Han Y, Hu X, Gu Q, Wang SJ, Liu XZ. Potential causal and temporal relationship between plasma triglyceride levels and circulating leukocyte. J Lipid Res 2024:100662. [PMID: 39369792 DOI: 10.1016/j.jlr.2024.100662] [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: 04/22/2024] [Revised: 09/08/2024] [Accepted: 09/30/2024] [Indexed: 10/08/2024] Open
Abstract
BACKGROUND Circulating triglyceride (TG) and leukocytes, the main components of the vascular system, may impact each other and co-fuel atherosclerosis. While the causal relationship between plasma TG levels and leukocyte counts remains unclear. METHODS Bidirectional mendelian randomisation (MR) analysis was conducted to investigate the potential causal relationship between TG levels and the counts of leukocytes and their subtypes. A cross-lagged panel model (CLPM) using a longitudinal healthy screening data (13,389 adults with an follow-up of 4 years) was fitted to examine the temporal relationship between them. RESULTS Genetically predicted plasma TG levels were positively associated with total leukocyte counts (TLC) [β(se)=0.195(0.01)], lymphocyte counts (LC) [β(se)=0.196(0.019)], and neutrophill counts (NC) [β(se)=0.086(0.01)], which remained significant after adjusting for several confounders. Inversely, the genetically predicted TLC [β(se)=0.033(0.008)], LC [β(se)=0.053(0.008)], and NC [β(se)=0.034(0.008)] were positively associated with plasma TG levels. However, when all three of them were put into the MR model adjusted for each other, only LC was significantly associated with TG levels. There was no association between genetically predicted TG levels and monocyte counts (MC), basophil counts, and eosinophill counts. The results of CLPM showed that the temporal effect of elevated TLC, MC, LC, and NC on plasma TG levels were stronger than the inverse effect. CONCLUSION Our findings suggesting a causal associations of plasma TG levels with TLC, LC, and NC. In turn, LC was positively associated with plasma TG levels. Additionally, elevated circulating LC may precede high plasma TG levels.
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Affiliation(s)
- Jing Xian Fang
- Department of Endocrinology, Shidong Hospital, University of Shanghai for Science and Technology, Shanghai, China
| | - Hui Min Zou
- Department of Endocrinology, Shidong Hospital, University of Shanghai for Science and Technology, Shanghai, China
| | - Jian Meng
- Department of Endocrinology, Shidong Hospital, University of Shanghai for Science and Technology, Shanghai, China
| | - Yu Han
- Department of Endocrinology, Shidong Hospital, University of Shanghai for Science and Technology, Shanghai, China
| | - Xue Hu
- Department of Endocrinology, Shidong Hospital, University of Shanghai for Science and Technology, Shanghai, China
| | - Qing Gu
- Department of Endocrinology, Shidong Hospital, University of Shanghai for Science and Technology, Shanghai, China
| | - Sui Jun Wang
- Department of Endocrinology, Shidong Hospital, University of Shanghai for Science and Technology, Shanghai, China.
| | - Xing Zhen Liu
- Hangzhou Aeronautical Sanatorium for Special Service of China Air Force, Hangzhou, China.
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11
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Han S, Kim B, Hyeon DY, Jeong D, Ryu J, Nam JS, Choi YH, Kim BR, Park SC, Chung YW, Shin SJ, Lee JY, Kim JK, Park J, Lee SW, Kim TB, Cheon JH, Cho HJ, Kim CH, Yoon JH, Hwang D, Ryu JH. Distinctive CD39 +CD9 + lung interstitial macrophages suppress IL-23/Th17-mediated neutrophilic asthma by inhibiting NETosis. Nat Commun 2024; 15:8628. [PMID: 39366998 PMCID: PMC11452667 DOI: 10.1038/s41467-024-53038-2] [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: 06/04/2023] [Accepted: 09/30/2024] [Indexed: 10/06/2024] Open
Abstract
The IL-23-Th17 axis is responsible for neutrophilic inflammation in various inflammatory diseases. Here, we discover a potential pathway to inhibit neutrophilic asthma. In our neutrophil-dominant asthma (NDA) model, single-cell RNA-seq analysis identifies a subpopulation of CD39+CD9+ interstitial macrophages (IMs) suppressed by IL-23 in NDA conditions but increased by an IL-23 inhibitor αIL-23p19. Adoptively transferred CD39+CD9+ IMs suppress neutrophil extracellular trap formation (NETosis), a representative phenotype of NDA, and also Th17 cell activation and neutrophilic inflammation. CD39+CD9+ IMs first attach to neutrophils in a CD9-dependent manner, and then remove ATP near neutrophils that contribute to NETosis in a CD39-dependent manner. Transcriptomic data from asthmatic patients finally show decreased CD39+CD9+ IMs in severe asthma than mild/moderate asthma. Our results suggest that CD39+CD9+ IMs function as a potent negative regulator of neutrophilic inflammation by suppressing NETosis in the IL-23-Th17 axis and can thus serve as a potential therapeutic target for IL-23-Th17-mediated neutrophilic asthma.
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Affiliation(s)
- Seunghan Han
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Bomin Kim
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Do Young Hyeon
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Daeun Jeong
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Jaechan Ryu
- Institut Pasteur, Microenvironment and Immunity Unit, Paris, France
| | - Jae-Sung Nam
- Department of Otorhinolaryngology and Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Yoon Ha Choi
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Bo-Ram Kim
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Chul Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Youn Wook Chung
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Jae Shin
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
| | - June-Yong Lee
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Kyoung Kim
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Jihye Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sei Won Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae-Bum Kim
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Hee Cheon
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Hyung-Ju Cho
- Department of Otorhinolaryngology and Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Chang-Hoon Kim
- Department of Otorhinolaryngology and Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Joo-Heon Yoon
- Department of Otorhinolaryngology and Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Korea.
| | - Daehee Hwang
- School of Biological Sciences, Seoul National University, Seoul, Korea.
| | - Ji-Hwan Ryu
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul, Korea.
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea.
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12
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Liu W, Qi Y, Diao W, Lin J, Zhang L, Wang Q, Gu L, Feng Z, Chi M, Wang Y, Yi W, Li Y, Li C, Zhao G. Chelerythrine ameliorates Aspergillus fumigatus keratitis through suppressing the LOX-1/p38 MAPK signaling pathway. Cytokine 2024; 182:156717. [PMID: 39067394 DOI: 10.1016/j.cyto.2024.156717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 07/21/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024]
Abstract
PURPOSE Aspergillus fumigatus (A. fumigatus) keratitis is a type of infectious corneal disease that significantly impairs vision. The objective of this study is to evaluate the therapeutic potential of chelerythrine (CHE) on A. fumigatus keratitis. METHODS The antifungal activity of CHE was assessed through various tests including the minimum inhibitory concentration test, scanning electron microscopy, transmission electron microscopy, propidium iodide uptake test and plate count. Neutrophil infiltration and activity were assessed using immunofluorescence staining and the myeloperoxidase test. RT-PCR, western blotting assay, and ELISA were performed to measure the expression levels of proinflammatory cytokines (IL-1β and IL-6), NF-E2-related factor (Nrf2), heme oxygenase-1 (HO-1), and lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), as well as to determine the ratio of phosphorylated-p38 (p-p38) mitogen-activated protein kinase (MAPK) to p38 MAPK. RESULTS In vitro, CHE inhibited the growth of A. fumigatus conidia, reduced fungal hyphae survival, and prevented fungal biofilm formation. In vivo, CHE reduced the severity of A. fumigatus keratitis and exhibited an excellent anti-inflammatory effect by blocking neutrophil infiltration. Furthermore, CHE decreased the expression levels of proinflammatory cytokines and LOX-1 at both mRNA and protein levels, while also decreasing the p-p38 MAPK/p38 MAPK ratio. Additionally, CHE increased the expression levels of Nrf2 and HO-1. CONCLUSION CHE provides protection against A. fumigatus keratitis through multiple mechanisms, including reducing fungal survival, inducing anti-inflammatory effects, enhancing Nrf2 and HO-1 expression, and suppressing the signaling pathway of LOX-1/p38 MAPK.
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Affiliation(s)
- Wenyao Liu
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Yinghe Qi
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Weilin Diao
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Jing Lin
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Lina Zhang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Qian Wang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Lingwen Gu
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Zhuhui Feng
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Menghui Chi
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Yuwei Wang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Wendan Yi
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Yuqi Li
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Cui Li
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
| | - Guiqiu Zhao
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
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13
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Kim C, Kim H, Sim WS, Jung M, Hong J, Moon S, Park JH, Kim JJ, Kang M, Kwon S, Kim MJ, Ban K, Park HJ, Kim BS. Spatiotemporal control of neutrophil fate to tune inflammation and repair for myocardial infarction therapy. Nat Commun 2024; 15:8481. [PMID: 39353987 PMCID: PMC11445496 DOI: 10.1038/s41467-024-52812-6] [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: 02/15/2024] [Accepted: 09/23/2024] [Indexed: 10/03/2024] Open
Abstract
Neutrophils are critical mediators of both the initiation and resolution of inflammation after myocardial infarction (MI). Overexuberant neutrophil signaling after MI exacerbates cardiomyocyte apoptosis and cardiac remodeling while neutrophil apoptosis at the injury site promotes macrophage polarization toward a pro-resolving phenotype. Here, we describe a nanoparticle that provides spatiotemporal control over neutrophil fate to both stymie MI pathogenesis and promote healing. Intravenous injection of roscovitine/catalase-loaded poly(lactic-co-glycolic acid) nanoparticles after MI leads to nanoparticle uptake by circulating neutrophils migrating to the infarcted heart. Activated neutrophils at the infarcted heart generate reactive oxygen species, triggering intracellular release of roscovitine, a cyclin-dependent kinase inhibitor, from the nanoparticles, thereby inducing neutrophil apoptosis. Timely apoptosis of activated neutrophils at the infarcted heart limits neutrophil-driven inflammation, promotes macrophage polarization toward a pro-resolving phenotype, and preserves heart function. Modulating neutrophil fate to tune both inflammatory and reparatory processes may be an effective strategy to treat MI.
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Affiliation(s)
- Cheesue Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Hyeok Kim
- Department of Biomedicine & Health Sciences, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul Saint Mary's Hospital, Seoul, Republic of Korea
| | - Woo-Sup Sim
- Department of Biomedicine & Health Sciences, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul Saint Mary's Hospital, Seoul, Republic of Korea
| | - Mungyo Jung
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Jihye Hong
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul, Republic of Korea
| | - Sangjun Moon
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Jae-Hyun Park
- Department of Biomedicine & Health Sciences, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul Saint Mary's Hospital, Seoul, Republic of Korea
| | - Jin-Ju Kim
- Department of Biomedicine & Health Sciences, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul Saint Mary's Hospital, Seoul, Republic of Korea
| | - Mikyung Kang
- School of Health and Environmental Science, Korea University, Seoul, Republic of Korea
| | - Sungpil Kwon
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - Mi-Jeong Kim
- Department of Internal Medicine, Seoul Saint Mary's Hospital, Seoul, Republic of Korea
| | - Kiwon Ban
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon, Hong Kong
| | - Hun-Jun Park
- Department of Biomedicine & Health Sciences, The Catholic University of Korea, Seoul, Republic of Korea.
- Department of Internal Medicine, Seoul Saint Mary's Hospital, Seoul, Republic of Korea.
- Cell Death Disease Research Center, The Catholic University of Korea, Seoul, Republic of Korea.
| | - Byung-Soo Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea.
- Interdisciplinary Program for Bioengineering, Seoul National University, Seoul, Republic of Korea.
- Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea.
- Institute of Engineering Research, Seoul National University, Seoul, Republic of Korea.
- Bio-MAX Institute, Seoul National University, Seoul, Republic of Korea.
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14
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de Arruda JAA, Oliveira SR, Heimlich FV, de Amorim-Santos BM, Schneider AH, de Sena ACVP, Rodrigues KEDS, Macari S, Souza DG, Travassos DV, Abreu LG, Silva TA, Mesquita RA. Kinetics of neutrophil extracellular traps and cytokines in oral mucositis and Candida infection. Oral Dis 2024; 30:4751-4761. [PMID: 38178616 DOI: 10.1111/odi.14857] [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: 10/20/2023] [Revised: 11/24/2023] [Accepted: 12/20/2023] [Indexed: 01/06/2024]
Abstract
OBJECTIVE This study investigated the concentrations of neutrophil extracellular traps (NET) and salivary cytokines (IL-1β, IL-6, IL-8/CXCL8, TNF, and TGF-β1) in patients undergoing chemotherapy and their associations with oral mucositis (OM) and Candida infection. MATERIALS AND METHODS This prospective longitudinal study performed at a Brazilian service included 60 adults diagnosed with hematolymphoid diseases. Saliva samples were collected on days D0, D3, D10, and D15. Cytokines were analyzed by ELISA and NET formation by identification of the myeloperoxidase-DNA complex. Oral Candida spp. was cultured. RESULTS OM occurred in 43.3% of patients and oral candidiasis in 20%. However, 66% of individuals had positive cultures for C. albicans. Higher concentrations of IL-6, IL-8/CXCL8, and TNF and lower concentrations of TGF-β1 were observed in patients with OM. C. albicans infection contributed to the increase in IL-8/CXCL8, TGF-β1, and TNF. Individuals with OM or with oral candidiasis had significant reductions in NET formation. In contrast, individuals with C. albicans and with concomitant C. albicans and OM exhibited higher NET formation. CONCLUSION The kinetics of cytokine levels and NET formation in chemotherapy-induced OM appears to be altered by Candida infection, even in the absence of clinical signs of oral candidiasis.
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Affiliation(s)
- José Alcides Almeida de Arruda
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Sicília Rezende Oliveira
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Fernanda Vieira Heimlich
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Bárbara Maria de Amorim-Santos
- Department of Microbiology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ayda Henriques Schneider
- Department of Pharmacology, Ribeirão Preto Medical School, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Karla Emília de Sá Rodrigues
- Department of Pediatric Oncology, Children's Cancer Hospital, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Soraia Macari
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Daniele Glória Souza
- Department of Microbiology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Denise Vieira Travassos
- Multiprofessional Integrated Residency in Health, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Department of Social and Preventive Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lucas Guimarães Abreu
- Department of Child and Adolescent Oral Health, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Tarcília Aparecida Silva
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Multiprofessional Integrated Residency in Health, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ricardo Alves Mesquita
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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15
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Moodley M, Moodley J, Naicker T. Placental neutrophil reverse trans-migration and maternal serum neutrophil extracellular trap expression in HIV infection co-morbid pre-eclampsia in women of African ancestry. Histochem Cell Biol 2024; 162:273-286. [PMID: 38913117 PMCID: PMC11364576 DOI: 10.1007/s00418-024-02298-6] [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] [Accepted: 05/13/2024] [Indexed: 06/25/2024]
Abstract
Neutrophil extracellular traps (NETs) and placental neutrophil reverse transmigration (r-TM) are implicated in the pathogenesis of pre-eclampsia (PE). However, the role of the comorbidity of PE and human immunodeficiency virus (HIV) infection in placental neutrophil r-TM and serum NETs remains unknown. Human placental tissue (n = 160) and serum (n = 80) samples were obtained post-ethical approval and divided by pregnancy type and HIV status and across the study population. Immunohistochemistry and morphometry were performed to localize and quantify junctional adhesion molecule-C (JAM-C) expression as an inverse marker of neutrophil r-TM within placental villi. An enzyme-linked immunosorbent assay (ELISA) was performed to quantify the concentration of citrullinated histone H3 (cit-H3) as a marker of NETs. GraphPad Prism (version 8.0.2) was used to compare the results, and a p value of p < 0.05 was considered statistically significant. The localization of JAM-C was observed on the syncytiotrophoblasts (STBs) and endothelial cells of placental villi. The immunoexpression of JAM-C was elevated in PE vs. normotensive (N) placentae. In the exchange villi, JAM-C immunoexpression was higher in the N+ve vs. N-ve group. However, in PE comorbid HIV infection, JAM-C expression was lower in the PE+ve vs. PE-ve group. Citrullinated histone-H3 concentration was lower in the N+ve vs. N-ve group but elevated in early-onset PE (EOPE)+ve vs. late-onset PE (LOPE)+ve group. These results indicate that PE and HIV-infected placentae individually express elevated JAM-C, manifesting in less neutrophil r-TM. However, in exchange villi of PE comorbid with HIV infection reduced JAM-C enhances neutrophil r-TM, thus supporting the synergistic effect of PE comorbid with HIV.
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Affiliation(s)
- Merantha Moodley
- Department of Obstetrics and Gynecology, School of Clinical Medicine, Women's Health and HIV Research Group, College of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa.
- Optics & Imaging Centre, Doris Duke Medical Research Institute, College of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa.
| | - Jagidesa Moodley
- Department of Obstetrics and Gynecology, School of Clinical Medicine, Women's Health and HIV Research Group, College of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Thajasvarie Naicker
- Optics & Imaging Centre, Doris Duke Medical Research Institute, College of Health Sciences, University of KwaZulu-Natal, Durban, 4041, South Africa.
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16
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Yogendrakumar V, Vandelanotte S, Mistry EA, Hill MD, Coutts SB, Nogueira RG, Nguyen TN, Medcalf RL, Broderick JP, De Meyer SF, Campbell BCV. Emerging Adjuvant Thrombolytic Therapies for Acute Ischemic Stroke Reperfusion. Stroke 2024; 55:2536-2546. [PMID: 39105286 DOI: 10.1161/strokeaha.124.045755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Thrombolytic therapies for acute ischemic stroke are widely available but only result in recanalization early enough, to be therapeutically useful, in 10% to 30% of cases. This large gap in treatment effectiveness could be filled by novel therapies that can increase the effectiveness of thrombus clearance without significantly increasing the risk of harm. This focused update will describe the current state of emerging adjuvant treatments for acute ischemic stroke reperfusion. We focus on new treatments that are designed to (1) target different components that make up a stroke thrombus, (2) enhance endogenous fibrinolytic systems, (3) reduce stagnant blood flow, and (4) improve recanalization of distal thrombi and postendovascular thrombectomy.
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Affiliation(s)
- Vignan Yogendrakumar
- Division of Neurology, The Ottawa Hospital and Ottawa Hospital Research Institute, University of Ottawa, Canada (V.Y.)
- Department of Neurology, Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Australia (V.Y., B.C.V.C.)
| | - Sarah Vandelanotte
- Laboratory for Thrombosis Research, KU Leuven Campus Kulak, Kortrijk, Belgium (S.V., S.F.D.M.)
| | - Eva A Mistry
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati, OH (E.A.M., J.P.B.)
| | - Michael D Hill
- Department of Clinical Neurosciences, Radiology, and Community Health Sciences, Cumming School of Medicine, Hotchkiss Brain Institute, University of Calgary, Canada (M.D.H., S.B.C.)
| | - Shelagh B Coutts
- Department of Clinical Neurosciences, Radiology, and Community Health Sciences, Cumming School of Medicine, Hotchkiss Brain Institute, University of Calgary, Canada (M.D.H., S.B.C.)
| | - Raul G Nogueira
- Department of Neurology, University of Pittsburgh, PA (R.G.N.)
| | - Thanh N Nguyen
- Department of Neurology, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, MA (T.N.N.)
| | - Robert L Medcalf
- Central Clinical School, Australian Centre for Blood Diseases, Monash University, Australia (R.L.M.)
| | - Joseph P Broderick
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati, OH (E.A.M., J.P.B.)
- Gardner Neuroscience Institute, Cincinnati, OH (J.P.B.)
| | - Simon F De Meyer
- Laboratory for Thrombosis Research, KU Leuven Campus Kulak, Kortrijk, Belgium (S.V., S.F.D.M.)
| | - Bruce C V Campbell
- Department of Neurology, Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Australia (V.Y., B.C.V.C.)
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17
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Huang Y, Jiang W, Zhou R. DAMP sensing and sterile inflammation: intracellular, intercellular and inter-organ pathways. Nat Rev Immunol 2024; 24:703-719. [PMID: 38684933 DOI: 10.1038/s41577-024-01027-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2024] [Indexed: 05/02/2024]
Abstract
Damage-associated molecular patterns (DAMPs) are endogenous molecules that are released from host cells as a result of cell death or damage. The release of DAMPs in tissues is associated with loss of tissue homeostasis. Sensing of DAMPs by innate immune receptors triggers inflammation, which can be beneficial in initiating the processes that restore tissue homeostasis but can also drive inflammatory diseases. In recent years, the sensing of intracellular DAMPs has received extensive attention in the field of sterile inflammation. However, emerging studies have shown that DAMPs that originate from neighbouring cells, and even from distal tissues or organs, also mediate sterile inflammatory responses. This multi-level sensing of DAMPs is crucial for intercellular, trans-tissue and trans-organ communication. Here, we summarize how DAMP-sensing receptors detect DAMPs from intracellular, intercellular or distal tissue and organ sources to mediate sterile inflammation. We also discuss the possibility of targeting DAMPs or their corresponding receptors to treat inflammatory diseases.
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Affiliation(s)
- Yi Huang
- Key Laboratory of Immune Response and Immunotherapy, Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China
| | - Wei Jiang
- Key Laboratory of Immune Response and Immunotherapy, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Rongbin Zhou
- Key Laboratory of Immune Response and Immunotherapy, Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China.
- Key Laboratory of Immune Response and Immunotherapy, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
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Geng X, Wang DW, Li H. The pivotal role of neutrophil extracellular traps in cardiovascular diseases: Mechanisms and therapeutic implications. Biomed Pharmacother 2024; 179:117289. [PMID: 39151311 DOI: 10.1016/j.biopha.2024.117289] [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: 05/30/2024] [Revised: 08/05/2024] [Accepted: 08/08/2024] [Indexed: 08/19/2024] Open
Abstract
Cardiovascular diseases (CVDs) continue to pose a significant burden on global health, prominently contributing to morbidity and mortality rates worldwide. Recent years have witnessed an increasing recognition of the intricate involvement of neutrophil extracellular traps (NETs) in the pathology of diverse cardiovascular conditions. This review provides a comprehensive analysis of the multifaceted functions of NETs in cardiovascular diseases, shedding light on the impact on atherosclerosis, myocardial infarction, heart failure, myocarditis, atrial fibrillation, aortic stenosis, and the potential therapeutic avenues targeting NETs.
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Affiliation(s)
- Xinyu Geng
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Huihui Li
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Inomata R, Tsubouchi H, Takao T, Kurokawa M, Yanagi S, Sakai K, Miyazaki T. Resolvin D4 mitigates lipopolysaccharide-induced lung injury in mice. Prostaglandins Leukot Essent Fatty Acids 2024; 203:102652. [PMID: 39368237 DOI: 10.1016/j.plefa.2024.102652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 09/17/2024] [Accepted: 09/20/2024] [Indexed: 10/07/2024]
Abstract
Acute respiratory distress syndrome (ARDS) is a life-threatening condition involving severe lung inflammation. The excessive oxidative stress and persistent inflammation that occur in ARDS lead to decreased epithelial integrity and hypoxemia due to pulmonary edema via increased vascular permeability. Resolvin D4 (RvD4) is one of the lipid mediators that is biosynthesized from omega-3 polyunsaturated fatty acids. It plays a role in the resolution of inflammation and reduces oxidative stress and cell death. We investigated the therapeutic potential of the administration of RvD4 in a murine model of lipopolysaccharide (LPS)-induced ARDS. Concurrent with the intratracheal administration of LPS, RvD4 or saline was administered to mice via the caudal vein every 12 h. This treatment with RvD4 alleviated the LPS-induced infiltration of inflammatory cells in lungs, inhibited increased pulmonary vascular permeability, decreased the levels of IL-1β, IL-6, and TNF-α in bronchoalveolar lavage fluid (BALF), and suppressed the reduction of the expression levels of the tight junction protein, Zonula occludens-1 (Zo-1) and the NAD+-dependent deacetylase, Sirtuin-3 (Sirt3). In vitro experiments revealed that in LPS-stimulated BEAS-2B cells, treatment with RvD4 suppressed the increases in the expressions of pro-inflammatory cytokines and maintained the epithelial cell barrier function and cell viability. The silencing of SIRT3 abolished both the anti-inflammatory effect and the retention of cell integrity in BEAS-2B cells. Together these results indicate that treatment with RvD4 can (i) protect against LPS-induced lung injury by inhibiting inflammation, and (ii) maintain epithelial barrier function via a reduction in the downregulation of SIRT3.
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Affiliation(s)
- Rika Inomata
- Division of Respirology, Rheumatology, Infectious Diseases, and Neurology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Kihara 5200, Kiyotake, Miyazaki, 889-1692, Japan
| | - Hironobu Tsubouchi
- Division of Respirology, Rheumatology, Infectious Diseases, and Neurology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Kihara 5200, Kiyotake, Miyazaki, 889-1692, Japan.
| | - Toshifumi Takao
- Institute for Protein Research, Osaka University, Osaka, Japan
| | - Mone Kurokawa
- Institute for Protein Research, Osaka University, Osaka, Japan
| | - Shigehisa Yanagi
- Division of Respirology, Rheumatology, Infectious Diseases, and Neurology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Kihara 5200, Kiyotake, Miyazaki, 889-1692, Japan
| | - Katsuya Sakai
- Division of Respirology, Rheumatology, Infectious Diseases, and Neurology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Kihara 5200, Kiyotake, Miyazaki, 889-1692, Japan
| | - Taiga Miyazaki
- Division of Respirology, Rheumatology, Infectious Diseases, and Neurology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Kihara 5200, Kiyotake, Miyazaki, 889-1692, Japan
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20
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Bülow Anderberg S, Huckriede J, Hultström M, Larsson A, de Vries F, Lipcsey M, Nicolaes GAF, Frithiof R. Association of corticosteroid therapy with reduced acute kidney injury and lower NET markers in severe COVID-19: an observational study. Intensive Care Med Exp 2024; 12:85. [PMID: 39340756 PMCID: PMC11438749 DOI: 10.1186/s40635-024-00670-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 09/09/2024] [Indexed: 09/30/2024] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is common in critical cases of coronavirus disease 2019 (COVID-19) and associated with worse outcome. Dysregulated neutrophil extracellular trap (NET) formation is one of several suggested pathophysiological mechanisms involved in the development of COVID-19 associated AKI. The corticosteroid dexamethasone was implemented as a standard treatment for severe COVID-19 as of June 2020. A sub-analysis of a prospective observational single center study was performed to evaluate the effect of corticosteroid treatment on AKI development and NET markers in critical cases of COVID-19. RESULTS Two hundred and ten adult patients admitted to intensive care at a tertiary level hospital due to respiratory failure or shock secondary to SARS-CoV-2-infection between March 13th 2020 and January 14th 2021 were included in the study. Ninety-seven of those did not receive corticosteroids. One hundred and thirteen patients were treated with corticosteroids [dexamethasone (n = 98) or equivalent treatment (n = 15)], but the incidence of AKI was assessed only in patients that received corticosteroids before any registered renal dysfunction (n = 63). Corticosteroids were associated with a lower incidence of AKI (19% vs 55.8%, p < 0.001). Fewer patients demonstrated detectable concentrations of extracellular histones in plasma when treated with corticosteroids (8.7% vs 43.1%; p < 0.001). Extracellular histones and in particular non-proteolyzed histones were observed more frequently with increasing AKI severity (p < 0.001). MPO-DNA was found in lower concentrations in patients that received corticosteroids before established renal dysfunction (p = 0.03) and was found in higher concentrations in patients with AKI stage 3 (p = 0.03). Corticosteroids did not ameliorate established AKI during the first week of treatment. CONCLUSION Corticosteroid treatment in severe COVID-19 is associated with a lower incidence of AKI and reduced concentrations of NET markers in plasma.
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Affiliation(s)
- Sara Bülow Anderberg
- Department of Surgical Sciences, Anesthesiology and Intensive Care, Uppsala University, 751 85, Uppsala, Sweden.
| | - Joram Huckriede
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Michael Hultström
- Department of Surgical Sciences, Anesthesiology and Intensive Care, Uppsala University, 751 85, Uppsala, Sweden
- Department of Medical Cell Biology, Integrative Physiology, Uppsala University, Uppsala, Sweden
| | - Anders Larsson
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Femke de Vries
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Miklos Lipcsey
- Department of Surgical Sciences, Anesthesiology and Intensive Care, Uppsala University, 751 85, Uppsala, Sweden
- Hedenstierna Laboratory, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Gerry A F Nicolaes
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Robert Frithiof
- Department of Surgical Sciences, Anesthesiology and Intensive Care, Uppsala University, 751 85, Uppsala, Sweden
- Uppsala Centre for Paediatric Anesthesia and Intensive Care Research, Uppsala, Sweden
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21
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Huang H, Deng X, Wang Y, Shen S, Wang S, Hu M, Liu S, Su X, Li C, Li T, Lu Z, Cai W. Chronic Stress Exacerbates Cerebral Amyloid Angiopathy Through Promoting Neutrophil Extracellular Traps Formation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404096. [PMID: 39324658 DOI: 10.1002/advs.202404096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 08/29/2024] [Indexed: 09/27/2024]
Abstract
Cerebral amyloid angiopathy (CAA) is the leading cause of vascular dementia among the elderly. Neuropsychiatric symptoms are commonly manifested in cerebral amyloid angiopathy patients but are usually considered as consequences of cerebral amyloid angiopathy pathology. Here, it is reported that chronic stress promotes cerebral amyloid angiopathy progression, which enhances deposition of amyloid protein beta (Aβ) in brain blood vessels and exacerbates subsequent brain injury. Mechanistically, neutrophil is implicated in cerebral amyloid angiopathy development. Aβ that accumulates in brain vasculature induces neutrophil extracellular traps (NETs) by activating STAT6 signaling, which inhibits neutrophil apoptosis and switches the programmed cell death toward NETosis. During chronic stress, circulatory Norepinephrine (NE) strengthens STAT6 activation in neutrophil and promotes NET formation, thus exacerbates the NET-dependent angiopathy. It is demonstrated that inhibiting neutrophil chemotaxis towards brain or suppressing NET formation both ameliorate cerebral amyloid angiopathy severity in the context of chronic stress. Therefore, it is proposed that stress-associated psychological disorders and NETs are promising therapeutic targets in cerebral amyloid angiopathy.
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Affiliation(s)
- Huipeng Huang
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Xiaohui Deng
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Yuge Wang
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Shishi Shen
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Shisi Wang
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Mengyan Hu
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Sanxin Liu
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Xiaotao Su
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Chunyi Li
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Tiemei Li
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Zhengqi Lu
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Wei Cai
- Department of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Guangzhou, 510630, China
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22
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Naik A, Stratton RJ, Leask A. Digital ulcers associated with scleroderma: A major unmet medical need. Wound Repair Regen 2024. [PMID: 39323322 DOI: 10.1111/wrr.13224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 09/09/2024] [Accepted: 09/11/2024] [Indexed: 09/27/2024]
Abstract
Scleroderma or systemic sclerosis (SSc)-associated digital ischaemic complications, such as digital ulcers (SSc-DUs), appear relatively early during the disease course and are a major burden with substantial deterioration of quality of life. Expert rheumatologist and wound specialists have defined a DU; however, international application of the definition is still disorganised. Appearance of SSc-DUs is secondary to the onset of Raynaud's phenomenon and as a consequence, recommended first-line of treatment mainly includes vasodilators; however, many DUs are refractory to this treatment. Despite important practical issues, such as a lack of well-characterised SSc-wound healing animal model, significant efforts are needed to mechanistically understand the pathogenesis of SSc-DUs for developing clinically targetable disease modifying therapies.
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Affiliation(s)
- Angha Naik
- College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Richard J Stratton
- Centre for Rheumatology and Connective Tissue Disease, University College London (Royal Free Campus), London, UK
| | - Andrew Leask
- College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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23
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Zhao H, Dong Q, Hua H, Wu H, Ao L. Contemporary insights and prospects on ferroptosis in rheumatoid arthritis management. Front Immunol 2024; 15:1455607. [PMID: 39381004 PMCID: PMC11458427 DOI: 10.3389/fimmu.2024.1455607] [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: 06/27/2024] [Accepted: 09/03/2024] [Indexed: 10/10/2024] Open
Abstract
Rheumatoid arthritis (RA) is a common autoimmune disease characterized primarily by persistent synovial inflammation and joint destruction. In recent years, ferroptosis, as a novel form of cell death, has garnered widespread attention due to its critical role in various diseases. This review explores the potential mechanisms of ferroptosis in RA and its relationship with the pathogenesis of RA, systematically analyzing the regulatory role of ferroptosis in synovial cells, chondrocytes, and immune cells. We emphasize the evaluation of ferroptosis-related pathways and their potential as therapeutic targets, including the development and application of inhibitors and activators. Although ferroptosis shows some promise in RA treatment, its dual role and safety issues in clinical application still require in-depth study. Future research should focus on elucidating the specific mechanisms of ferroptosis in RA pathology and developing more effective and safer therapeutic strategies to provide new treatment options for RA patients.
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Affiliation(s)
| | | | | | | | - Limei Ao
- College of Traditional Chinese Medicine, Inner Mongolia Medical University, Huhhot, Inner Mongolia, China
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24
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Salari Namin S, Zhu YP, Croker BA, Tan Z. Turning Neutrophil Cell Death Deadly in Hypertensive Vascular Disease. Can J Cardiol 2024:S0828-282X(24)00977-2. [PMID: 39326672 DOI: 10.1016/j.cjca.2024.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/24/2024] [Accepted: 09/18/2024] [Indexed: 09/28/2024] Open
Abstract
Hypertensive vascular disease (HVD) is a major health burden globally and is a comorbidity commonly associated with other metabolic diseases. Many factors are associated with hypertensive vascular disease including obesity, diabetes, smoking, chronic kidney disease, and sterile inflammation. Increasing evidence points to neutrophils as an important component of the chronic inflammatory response in hypertensive vascular disease. Neutrophils are abundant in the circulation and can respond rapidly upon stimulation to deploy an armament of anti-microbial effector functions. One of the outcomes of neutrophil activation is the generation of Neutrophil Extracellular Traps (NETs), a regulated extrusion of chromatin and proteases. While neutrophils and NETs are well described as components of the innate immune response to infection, recent evidence implicates them in HVD. Endothelial cell activation can trigger neutrophil adhesion, activation, and production of NETs promoting vascular dysfunction, vessel remodeling, and loss of resistance. The regulated release of NETs can be controlled by the pore-forming activities of distinct cell death pathways. The best-characterized pathways in this context are apoptosis, pyroptosis, and necroptosis. In this review, we will discuss how inflammatory cell death signaling and NET formation contribute to hypertensive disease. We also examine novel therapeutic approaches to limit NET production and their future potential as therapeutic drugs in cardiovascular disorders.
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Affiliation(s)
- Sahand Salari Namin
- Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA
| | - Yanfang Peipei Zhu
- Immunology Center of Georgia, Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Ben A Croker
- Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA
| | - Zhehao Tan
- Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA.
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25
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Xiao C, Feng X, Zhao Z, Ding G, Gao Y. Global research trends and focus on the link between neutrophil extracellular traps and tumor: a bibliometric and visualization analysis from 2006 to 2024. Front Immunol 2024; 15:1452104. [PMID: 39381001 PMCID: PMC11459091 DOI: 10.3389/fimmu.2024.1452104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 09/13/2024] [Indexed: 10/10/2024] Open
Abstract
Background Neutrophil extracellular traps (NETs) have long been consistently considered an innate immune defense against foreign pathogens, but this oversimplified view has decelerated the progression of perceiving NET biology in chronic diseases. It is now increasingly accepted that NETs are not exclusive to anti-infection responses, but are also central players with a double-edged sword role in cancer progression. NETs have gradually emerged as tumor diagnostic, predictive, and prognostic biomarkers, and strenuous endeavors have been devoted to tapping their potential as new therapeutic targets. Correspondingly, the boom in studies on NETs and tumors in recent years has achieved a series of scientific outputs, which opens up a new perspective for perceiving the sophisticated landscapes of the tumor immune microenvironment. However, there is still much room to translate NET-targeted immunotherapies into clinical practice. Therefore, it is necessary to explore the knowledge structure and latent hotspots of the links between NETs and tumors using bibliometric analysis. Methods NETs and tumor publications from 2006 to 2024 were extracted from the Web of Science Core Collection. Bibliometric analysis and visualization were conducted using Microsoft Excel, VOSviewer, CiteSpace, and R-bibliometrix. Results The analysis included 1,339 publications authored by 7,747 scholars affiliated with 1,926 institutions across 70 countries/regions with relevant articles published in 538 journals. Despite China's maximum number of publications, the United States has continued to dominate the field as a global cooperation center with overwhelming citation counts. Frontiers in Immunology published the most number of publications, whereas Blood was the most cited journal. Wagner, Denisa D. and Kaplan, Mariana J. are concurrently in both the top 10 most prolific authors and cited author lists. Tumor microenvironment and immunotherapy will likely be the focus of future research. Conclusions A comprehensive bibliometric analysis was first conducted to map the current landscape and knowledge structure of the link between NETs and tumors in the hope of providing guidance and fresh perspectives for further research in this field. NETs are promising antitumor targets, and perhaps the eventual destination in the realm is to translate NET-targeted immunotherapies into clinical practice.
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Affiliation(s)
| | | | | | | | - Yawen Gao
- Department of Oncology, The Second Xiangya Hospital, Central South
University, Changsha, China
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26
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Hu C, Long L, Lou J, Leng M, Yang Q, Xu X, Zhou X. CTC-neutrophil interaction: A key driver and therapeutic target of cancer metastasis. Biomed Pharmacother 2024; 180:117474. [PMID: 39316968 DOI: 10.1016/j.biopha.2024.117474] [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: 07/26/2024] [Revised: 09/19/2024] [Accepted: 09/19/2024] [Indexed: 09/26/2024] Open
Abstract
Circulating tumor cells (CTCs) are cancer cells that detach from the primary tumor and enter the bloodstream, where they can seed new metastatic lesions in distant organs. CTCs are often associated with white blood cells (WBCs), especially neutrophils, the most abundant and versatile immune cells in the blood. Neutrophils can interact with CTCs through various mechanisms, such as cell-cell adhesion, cytokine secretion, protease release, and neutrophil extracellular traps (NETs) formation. These interactions can promote the survival, proliferation, invasion, and extravasation of CTCs, as well as modulate the pre-metastatic niche and the tumor microenvironment. Therefore, inhibiting CTC-neutrophils interaction could be a potential strategy to reduce tumor metastasis and improve the prognosis of cancer patients. In this review, we summarize the current literature on CTC-neutrophils interaction' role in tumor metastasis and discuss the possible therapeutic approaches to target this interaction.
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Affiliation(s)
- Chengyi Hu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, PR China; Yunnan Key Laboratory of Stem Cell and Regenerative Medicine & School of Rehabilitation, Kunming Medical University, Kunming 650500, PR China
| | - Ling Long
- School of Pharmacy, Kunming Medical University, Kunming 650500, PR China; Department of Oncology, Xinqiao Hospital, Army Medical University, Chongqing 400054, PR China
| | - Jie Lou
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Mingjing Leng
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Qingqing Yang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Xiang Xu
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine & School of Rehabilitation, Kunming Medical University, Kunming 650500, PR China; Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, No. 10, Changjiang Branch Road, Yuzhong District, Chongqing 400042, PR China.
| | - Xing Zhou
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine & School of Rehabilitation, Kunming Medical University, Kunming 650500, PR China.
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27
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Wang H, Kim SJ, Lei Y, Wang S, Wang H, Huang H, Zhang H, Tsung A. Neutrophil extracellular traps in homeostasis and disease. Signal Transduct Target Ther 2024; 9:235. [PMID: 39300084 DOI: 10.1038/s41392-024-01933-x] [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: 02/24/2024] [Revised: 06/25/2024] [Accepted: 07/16/2024] [Indexed: 09/22/2024] Open
Abstract
Neutrophil extracellular traps (NETs), crucial in immune defense mechanisms, are renowned for their propensity to expel decondensed chromatin embedded with inflammatory proteins. Our comprehension of NETs in pathogen clearance, immune regulation and disease pathogenesis, has grown significantly in recent years. NETs are not only pivotal in the context of infections but also exhibit significant involvement in sterile inflammation. Evidence suggests that excessive accumulation of NETs can result in vessel occlusion, tissue damage, and prolonged inflammatory responses, thereby contributing to the progression and exacerbation of various pathological states. Nevertheless, NETs exhibit dual functionalities in certain pathological contexts. While NETs may act as autoantigens, aggregated NET complexes can function as inflammatory mediators by degrading proinflammatory cytokines and chemokines. The delineation of molecules and signaling pathways governing NET formation aids in refining our appreciation of NETs' role in immune homeostasis, inflammation, autoimmune diseases, metabolic dysregulation, and cancer. In this comprehensive review, we delve into the multifaceted roles of NETs in both homeostasis and disease, whilst discussing their potential as therapeutic targets. Our aim is to enhance the understanding of the intricate functions of NETs across the spectrum from physiology to pathology.
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Affiliation(s)
- Han Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Susan J Kim
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Yu Lei
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shuhui Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hui Wang
- Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hai Huang
- Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Hongji Zhang
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, USA.
| | - Allan Tsung
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, USA.
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28
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Das D, Thacker H, Priya K, Jain M, Singh S, Rai G. Complement component 5a receptor 1 and leukotriene B4 receptor 1 regulate neutrophil extracellular trap (NET) formation through Rap1a/B-Raf/ERK signaling pathway and their deficiency in term low birth weight newborns leads to deficient NETosis. Int Immunopharmacol 2024; 142:113165. [PMID: 39303536 DOI: 10.1016/j.intimp.2024.113165] [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: 07/30/2024] [Revised: 09/11/2024] [Accepted: 09/11/2024] [Indexed: 09/22/2024]
Abstract
BACKGROUND Neutrophil extracellular traps (NETs) being one of the predominant activities of neutrophils has become its key defense mechanism owing to its extensive role in inflammation and infection. However, the mechanisms regulating NET formation or NETosis still remains to be better understood. Our earlier whole genome transcriptomic data revealed two G-protein couple receptors (GPCRs) - complement component 5a receptor 1 (C5aR1) and leukotriene B4 receptor 1 (LTB4R1) were downregulated in term low birth weight (tLBW) newborns with deficient NET formation abilities. Neutrophils employ C5aR1 and LTB4R1 for mediating their immune responses, inflammation and antimicrobial activity. Hence, this study was aimed to explore the role of two GPCRs, C5aR1 and LTB4R1 including their downstream signaling molecules in NETs induction and regulation. METHODS The validation of the transcriptomic data for C5aR1 and LTB4R1 was done using quantitative real time PCR. Pharmacological inhibition of C5aR1 and LTB4R1 using W-54011 and LY223982 on neutrophils of adults and newborns' was done to study their impact on NETosis. Extracellular DNA release, Reactive oxygen species (ROS) generation, expression of NET proteins, and signaling molecules downstream to C5aR1 and LTB4R1 were quantified using plate reader based assay, immunofluorescence, and western blotting. Myeloperoxidase (MPO)-DNA quantified by flow cytometry. Knockdown studies using siRNA against C5aR1 and LTB4R1 were done in HL-60 cells derived surrogate neutrophils and expression of downstream molecules of the two GPCRs, C5aR1 and LTB4R1 signaling axis along with NET proteins was quantified by western blotting. RESULTS The expression of C5aR1 and LTB4R1, extracellular DNA, ROS and NET associated proteins (NE, CitH3, PAD4 and MPO) was notably increased upon NET induction in healthy adults and normal birth weight (NBW) newborns' neutrophils. Pharmacological inhibition of these two GPCRs led to substantial reduction in NETosis, extracellular DNA, ROS generation, and expression of NET associated proteins like CitH3, NE, PAD4, MPO along with downstream signaling molecules Rap1a, B-Raf and pERK. Our observations suggest a precise role of C5aR1 and LTB4R1 on induction of NETs via Rap1a/B-Raf/ERK signaling axis. CONCLUSION The C5aR1 and LTB4R1 signaling via Rap1a/B-Raf/ERK axis acts as a signal-relay mechanism to regulate NET formation in neutrophils. Further, C5aR1 and LTB4R1 signaling cascade along with NET-associated proteins are remarkably downregulated in tLBW newborns' neutrophils leading to impaired NETosis in them. Therefore, C5aR1 and LTB4R1 and their signaling molecules could provide an effective therapeutic target for compromised NETosis like tLBW newborns.
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Affiliation(s)
- Doli Das
- Department of Molecular and Human Genetics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Hiral Thacker
- Department of Molecular and Human Genetics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Khushbu Priya
- Department of Molecular and Human Genetics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Madhu Jain
- Department of Obstetrics & Gynecology, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Shambhavi Singh
- Dr. D. Y. Patil Medical College, Navi Mumbai, Maharashtra 400706, India
| | - Geeta Rai
- Department of Molecular and Human Genetics, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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Sun N, Jiang J, Chen B, Chen Y, Wu H, Wang H, Chen J. Neutrophil extracellular trap genes predict immunotherapy response in gastric cancer. Heliyon 2024; 10:e37357. [PMID: 39296112 PMCID: PMC11409185 DOI: 10.1016/j.heliyon.2024.e37357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 08/27/2024] [Accepted: 09/02/2024] [Indexed: 09/21/2024] Open
Abstract
Background Neutrophil extracellular trap (NET) is associated with host response, tumorigenesis, and immune dysfunction. However, the link between NET and the tumor microenvironment (TME) of gastric cancer (GC) remains unclear. Our study aims to characterize the expression patterns of NET-related genes and their relationships with clinicopathological characteristics, prognosis, TME features, and immunotherapy efficacy in GC cohorts. Methods Transcriptomic and single-cell RNA sequencing profiles of GC with annotated clinicopathological data were obtained from TCGA-STAD (n = 415), GSE62254 (n = 300), GSE15459 (n = 192), and GSE183904 (n = 26). The consensus cluster algorithm was used to classify tumor samples into different NET-related clusters. A NET-related signature was constructed using LASSO regression and verified in four immunotherapy cohorts. ROC and Kaplan-Meier analyses were conducted to evaluate the predictive and prognostic value of the model for immunotherapy efficacy. Results This study identified two NET-related clusters with distinct clinicopathological features, prognosis, and TME landscapes. The high NET-related cluster, characterized by increased NET-related gene expression, exhibited more aggressive behavior and a worse prognosis (HR = 1.63, P = 0.004) than the low NET-related cluster. DEGs were primarily involved in the chemokine/cytokine-associated pathways. Moreover, the high NET-related cluster had significantly higher levels of TME scores, immune infiltration, and immune effectors (all P < 0.001). The NET-related signature displayed a high predictive accuracy for immunotherapy response (AUC = 0.939, P < 0.001). Furthermore, patients with high NET-related scores consistently harbored a more favorable prognosis in different immunotherapy cohorts (all P < 0.05). Conclusions This study identified the NET-related signature as a robust model for predicting immunotherapy response in GC, which can help clinicians make appropriate immunotherapy decisions.
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Affiliation(s)
- Ningjie Sun
- Department of Gastrointestinal Surgery, Yiwu Central Hospital, Yiwu, China
| | - Junjie Jiang
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China
| | - Biying Chen
- Department of Surgical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiran Chen
- Department of Surgical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Haiming Wu
- Department of Gastrointestinal Surgery, Yiwu Central Hospital, Yiwu, China
| | - Haiyong Wang
- Department of Surgical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianfeng Chen
- Department of Gastrointestinal Surgery, Yiwu Central Hospital, Yiwu, China
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Jia J, Wang Y, Li M, Wang F, Peng Y, Hu J, Li Z, Bian Z, Yang S. Neutrophils in the premetastatic niche: key functions and therapeutic directions. Mol Cancer 2024; 23:200. [PMID: 39277750 PMCID: PMC11401288 DOI: 10.1186/s12943-024-02107-7] [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: 06/28/2024] [Accepted: 09/02/2024] [Indexed: 09/17/2024] Open
Abstract
Metastasis has been one of the primary reasons for the high mortality rates associated with tumours in recent years, rendering the treatment of current malignancies challenging and representing a significant cause of recurrence in patients who have undergone surgical tumour resection. Halting tumour metastasis has become an essential goal for achieving favourable prognoses following cancer treatment. In recent years, increasing clarity in understanding the mechanisms underlying metastasis has been achieved. The concept of premetastatic niches has gained widespread acceptance, which posits that tumour cells establish a unique microenvironment at distant sites prior to their migration, facilitating their settlement and growth at those locations. Neutrophils serve as crucial constituents of the premetastatic niche, actively shaping its microenvironmental characteristics, which include immunosuppression, inflammation, angiogenesis and extracellular matrix remodelling. These characteristics are intimately associated with the successful engraftment and subsequent progression of tumour cells. As our understanding of the role and significance of neutrophils in the premetastatic niche deepens, leveraging the presence of neutrophils within the premetastatic niche has gradually attracted the interest of researchers as a potential therapeutic target. The focal point of this review revolves around elucidating the involvement of neutrophils in the formation and shaping of the premetastatic niche (PMN), alongside the introduction of emerging therapeutic approaches aimed at impeding cancer metastasis.
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Affiliation(s)
- Jiachi Jia
- Zhengzhou University, Zhengzhou, 450000, China
| | - Yuhang Wang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Mengjia Li
- Department of Haematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Fuqi Wang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Yingnan Peng
- Department of Haematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Junhong Hu
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Zhen Li
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China.
| | - Zhilei Bian
- Department of Haematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China.
| | - Shuaixi Yang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China.
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Teijeira A, Garasa S, Ochoa MC, Sanchez-Gregorio S, Gomis G, Luri-Rey C, Martinez-Monge R, Pinci B, Valencia K, Palencia B, Barbés B, Bolaños E, Azpilikueta A, García-Cardosa M, Burguete J, Eguren-Santamaría I, Garate-Soraluze E, Berraondo P, Perez-Gracia JL, de Andrea CE, Rodriguez-Ruiz ME, Melero I. Low-Dose Ionizing γ-Radiation Elicits the Extrusion of Neutrophil Extracellular Traps. Clin Cancer Res 2024; 30:4131-4142. [PMID: 38630754 PMCID: PMC11393545 DOI: 10.1158/1078-0432.ccr-23-3860] [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: 12/09/2023] [Revised: 03/19/2024] [Accepted: 04/11/2024] [Indexed: 04/19/2024]
Abstract
PURPOSE Patients with cancer frequently undergo radiotherapy in their clinical management with unintended irradiation of blood vessels and copiously irrigated organs in which polymorphonuclear leukocytes circulate. Following the observation that such low doses of ionizing radiation are able to induce neutrophils to extrude neutrophil extracellular traps (NET), we have investigated the mechanisms, consequences, and occurrence of such phenomena in patients undergoing radiotherapy. EXPERIMENTAL DESIGN NETosis was analyzed in cultures of neutrophils isolated from healthy donors, patients with cancer, and cancer-bearing mice under confocal microscopy. Cocultures of radiation-induced NETs, immune effector lymphocytes, and tumor cells were used to study the effects of irradiation-induced NETs on immune cytotoxicity. Radiation-induced NETs were intravenously injected to mice for assessing their effects on metastasis. Circulating NETs in irradiated patients with cancer were measured using ELISA methods for detecting MPO-DNA complexes and citrullinated histone 3. RESULTS Irradiation of neutrophils with very low γ-radiation doses (0.5-1 Gy) elicits NET formation in a manner dependent on oxidative stress, NADPH oxidase activity, and autocrine IL8. Radiation-induced NETs interfere with NK cell and T-cell cytotoxicity. As a consequence, preinjection of irradiation-induced NETs increases the number of successful metastases in mouse tumor models. Increases in circulating NETs were readily detected in two prospective series of patients following the first fraction of their radiotherapy courses. CONCLUSIONS NETosis is induced by low-dose ionizing irradiation in a neutrophil-intrinsic fashion, and radiation-induced NETs are able to interfere with immune-mediated cytotoxicity. Radiation-induced NETs foster metastasis in mouse models and can be detected in the circulation of patients undergoing conventional radiotherapy treatments. See related commentary by Mowery and Luke, p. 3965.
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Affiliation(s)
- Alvaro Teijeira
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Saray Garasa
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
| | - Maria C Ochoa
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | | | - Gabriel Gomis
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
| | - Carlos Luri-Rey
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
| | - Rafael Martinez-Monge
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Department of Radiation Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Beatrice Pinci
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
| | - Karmele Valencia
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Solid Tumors Program, Center for Applied Medical Research (CIMA), Pamplona, Spain
| | - Belen Palencia
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
| | - Benigno Barbés
- Department of Radiation Physics and Radiation Protection, Clínica Universidad de Navarra, Pamplona, Spain
| | - Elixabet Bolaños
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Arantza Azpilikueta
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Marina García-Cardosa
- Department of Physics and Applied Mathematics, Universidad de Navarra, Pamplona, Spain
| | - Javier Burguete
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Department of Physics and Applied Mathematics, Universidad de Navarra, Pamplona, Spain
| | - Iñaki Eguren-Santamaría
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Department of Medical Oncology, Universidad de Navarra, Pamplona, Spain
| | - Eneko Garate-Soraluze
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
| | - Pedro Berraondo
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Jose L Perez-Gracia
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Department of Medical Oncology, Universidad de Navarra, Pamplona, Spain
| | - Carlos E de Andrea
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Department of Pathology, Clínica Universidad de Navarra, Pamplona, Spain
- Department of Anatomy, Physiology and Pathology, Universidad de Navarra, Pamplona, Spain
| | - Maria E Rodriguez-Ruiz
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Department of Immunology and Immunotherapy, Clínica Universidad de Navarra, Pamplona, Spain
| | - Ignacio Melero
- Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Department of Immunology and Immunotherapy, Clínica Universidad de Navarra, Pamplona, Spain
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
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Mowery YM, Luke JJ. NETosis Impact on Tumor Biology, Radiation, and Systemic Therapy Resistance. Clin Cancer Res 2024; 30:3965-3967. [PMID: 39007757 PMCID: PMC11398986 DOI: 10.1158/1078-0432.ccr-24-1363] [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: 05/20/2024] [Revised: 06/09/2024] [Accepted: 06/24/2024] [Indexed: 07/16/2024]
Abstract
Neutrophil extracellular trap (NET)osis via lytic neutrophil death or neutrophil activation is associated with standard cancer therapies, notably including radiotherapy; is immunosuppressive; and may enhance metastasis and treatment resistance. This emerging area of research should be prioritized in drug development and standard of care treatment paradigms including radiation therapy, chemotherapy, and immunotherapy. See related article by Teijeira et al., p. 4131.
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Affiliation(s)
- Yvonne M Mowery
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
- Department of Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Radiation Oncology, Duke University, Durham, North Carolina
| | - Jason J Luke
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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Kang W, Wang C, Wang M, Liu M, Hu W, Liang X, Yang J, Zhang Y. A key regulator of tumor-associated neutrophils: the CXCR2 chemokine receptor. J Mol Histol 2024:10.1007/s10735-024-10260-y. [PMID: 39269537 DOI: 10.1007/s10735-024-10260-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 08/30/2024] [Indexed: 09/15/2024]
Abstract
In recent years, with the advance of research, the role of tumor-associated neutrophils (TANs) in tumors has become a research hotspot. As important effector cells in the innate immune system, neutrophils play a key role in the immune and inflammatory responses of the body. As the first line of defense against bacterial and fungal infections, neutrophils have the ability to kill invading pathogens. In the pathological state of malignant tumors, the phenotype of neutrophils is altered and has an important regulatory function in tumor development. The C-X-C motif chemokine receptor 2(CXCR2) is a key molecule that mediates the migration and aggregation signaling pathway of immune cells, especially neutrophils. This review focuses on the regulation of CXCR2 on TANs in the process of tumorigenesis and development, and emphasizes the application significance of CXCR2 inhibitors in blocking the migration of TANs to tumors.
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Affiliation(s)
- Wenyan Kang
- Department of Gynecology, The First Affiliated Hospital, Hengyang School of Medicine, University of South China, Hengyang, 421001, Hunan, P.R. China
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, 420001, Hunan, China
| | - Chengkun Wang
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, 420001, Hunan, China
| | - Minhui Wang
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, 420001, Hunan, China
| | - Meiqi Liu
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, 420001, Hunan, China
| | - Wei Hu
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, 420001, Hunan, China
| | - Xiaoqiu Liang
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, 420001, Hunan, China
| | - Juanli Yang
- Department of Gynecology, The First Affiliated Hospital, Hengyang School of Medicine, University of South China, Hengyang, 421001, Hunan, P.R. China.
| | - Yang Zhang
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, 420001, Hunan, China.
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Li C, Gao P, Zhuang F, Wang T, Wang Z, Wu G, Zhou Z, Xie H, Xie D, Zhao D, Wu J, Chen C. Inhibition of ALOX12-12-HETE Alleviates Lung Ischemia-Reperfusion Injury by Reducing Endothelial Ferroptosis-Mediated Neutrophil Extracellular Trap Formation. RESEARCH (WASHINGTON, D.C.) 2024; 7:0473. [PMID: 39268501 PMCID: PMC11391482 DOI: 10.34133/research.0473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 08/12/2024] [Accepted: 08/20/2024] [Indexed: 09/15/2024]
Abstract
Lung ischemia-reperfusion injury (IRI) stands as the primary culprit behind primary graft dysfunction (PGD) after lung transplantation, yet viable therapeutic options are lacking. In the present study, we used a murine hilar clamp (1 h) and reperfusion (3 h) model to study IRI. The left lung tissues were harvested for metabolomics, transcriptomics, and single-cell RNA sequencing. Metabolomics of plasma from human lung transplantation recipients was also performed. Lung histology, pulmonary function, pulmonary edema, and survival analysis were measured in mice. Integrative analysis of metabolomics and transcriptomics revealed a marked up-regulation of arachidonate 12-lipoxygenase (ALOX12) and its metabolite 12-hydroxyeicosatetraenoic acid (12-HETE), which played a pivotal role in promoting ferroptosis and neutrophil extracellular trap (NET) formation during lung IRI. Additionally, single-cell RNA sequencing revealed that ferroptosis predominantly occurred in pulmonary endothelial cells. Importantly, Alox12-knockout (KO) mice exhibited a notable decrease in ferroptosis, NET formation, and tissue injury. To investigate the interplay between endothelial ferroptosis and NET formation, a hypoxia/reoxygenation (HR) cell model using 2 human endothelial cell lines was established. By incubating conditioned medium from HR cell model with neutrophils, we found that the liberation of high mobility group box 1 (HMGB1) from endothelial cells undergoing ferroptosis facilitated the formation of NETs by activating the TLR4/MYD88 pathway. Last, the administration of ML355, a targeted inhibitor of Alox12, mitigated lung IRI in both murine hilar clamp/reperfusion and rat left lung transplant models. Collectively, our study indicates ALOX12 as a promising therapeutic strategy for lung IRI.
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Affiliation(s)
- Chongwu Li
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Peigen Gao
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Fenghui Zhuang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Tao Wang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Zeyu Wang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Guodong Wu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Ziheng Zhou
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Huikang Xie
- Department of Pathology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Dong Xie
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Deping Zhao
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Junqi Wu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Chang Chen
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
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Artner T, Sharma S, Lang IM. Nucleic acid liquid biopsies in cardiovascular disease: Cell-free DNA liquid biopsies in cardiovascular disease. Atherosclerosis 2024:118583. [PMID: 39353793 DOI: 10.1016/j.atherosclerosis.2024.118583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 08/15/2024] [Accepted: 08/29/2024] [Indexed: 10/04/2024]
Abstract
Cardiovascular disease (CVD) is the leading cause of death worldwide, and despite treatment efforts, cardiovascular function cannot always be restored, and progression of disease be prevented. Critical insights are oftentimes based on tissue samples. Current knowledge of tissue pathology typically relies on invasive biopsies or postmortem samples. Liquid biopsies, which assess circulating mediators to deduce the histology and pathology of distant tissues, have been advancing rapidly in cancer research and offer a promising approach to be translated to the understanding and treatment of CVD. The widely understood elevations in cell-free DNA during acute and chronic cardiovascular conditions, associate with disease, severity, and offer prognostic value. The role of neutrophil extracellular traps (NETs) and circulating nucleases in thrombosis provide a solid rationale for liquid biopsies in CVD. cfDNA originates from various tissue types and cellular sources, including mitochondria and nuclei, and can be used to trace cell and tissue type lineage, as well as to gain insight into the activation status of cells. This article discusses the origin, structure, and potential utility of cfDNA, offering a deeper and less invasive approach for the understanding of the complexities of CVD.
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Affiliation(s)
- Tyler Artner
- Department of Internal Medicine II, Cardiology, Medical University of Vienna, Austria.
| | - Smriti Sharma
- Department of Internal Medicine II, Cardiology, Medical University of Vienna, Austria
| | - Irene M Lang
- Department of Internal Medicine II, Cardiology, Medical University of Vienna, Austria.
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Fang Z, Liu C, Yu X, Yang K, Yu T, Ji Y, Liu C. Identification of neutrophil extracellular trap-related biomarkers in non-alcoholic fatty liver disease through machine learning and single-cell analysis. Sci Rep 2024; 14:21085. [PMID: 39256536 PMCID: PMC11387488 DOI: 10.1038/s41598-024-72151-2] [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: 05/24/2024] [Accepted: 09/04/2024] [Indexed: 09/12/2024] Open
Abstract
Non-alcoholic Fatty Liver Disease (NAFLD), noted for its widespread prevalence among adults, has become the leading chronic liver condition globally. Simultaneously, the annual disease burden, particularly liver cirrhosis caused by NAFLD, has increased significantly. Neutrophil Extracellular Traps (NETs) play a crucial role in the progression of this disease and are key to the pathogenesis of NAFLD. However, research into the specific roles of NETs-related genes in NAFLD is still a field requiring thorough investigation. Utilizing techniques like AddModuleScore, ssGSEA, and WGCNA, our team conducted gene screening to identify the genes linked to NETs in both single-cell and bulk transcriptomics. Using algorithms including Random Forest, Support Vector Machine, Least Absolute Shrinkage, and Selection Operator, we identified ZFP36L2 and PHLDA1 as key hub genes. The pivotal role of these genes in NAFLD diagnosis was confirmed using the training dataset GSE164760. This study identified 116 genes linked to NETs across single-cell and bulk transcriptomic analyses. These genes demonstrated enrichment in immune and metabolic pathways. Additionally, two NETs-related hub genes, PHLDA1 and ZFP36L2, were selected through machine learning for integration into a prognostic model. These hub genes play roles in inflammatory and metabolic processes. scRNA-seq results showed variations in cellular communication among cells with different expression patterns of these key genes. In conclusion, this study explored the molecular characteristics of NETs-associated genes in NAFLD. It identified two potential biomarkers and analyzed their roles in the hepatic microenvironment. These discoveries could aid in NAFLD diagnosis and management, with the ultimate goal of enhancing patient outcomes.
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Affiliation(s)
- Zhihao Fang
- Department of General Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Changxu Liu
- Department of General Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Xiaoxiao Yu
- Department of General Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Kai Yang
- Department of General Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Tianqi Yu
- Department of General Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Yanchao Ji
- Department of General Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Chang Liu
- Department of General Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
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Zollet V, Arenas Hoyos I, Hirsiger S, Brahim BB, Petrucci MF, Casoni D, Wang J, Spirig R, Nettelbeck K, Garcia L, Fuest L, Vögelin E, Constantinescu M, Rieben R. Neutrophil extracellular traps and citrullinated fibrinogen contribute to injury in a porcine model of limb ischemia and reperfusion. Front Immunol 2024; 15:1436926. [PMID: 39315100 PMCID: PMC11416929 DOI: 10.3389/fimmu.2024.1436926] [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: 05/22/2024] [Accepted: 08/20/2024] [Indexed: 09/25/2024] Open
Abstract
Background Ischemia/reperfusion injury (IRI) is a complex pathological process, triggered by the restoration of blood flow following an interrupted blood supply. While restoring the blood flow is the only option to salvage the ischemic tissue, reperfusion after a prolonged period of ischemia initiates IRI, triggering a cascade of inflammatory responses ultimately leading to neutrophil recruitment to the inflamed tissue, where they release neutrophil extracellular traps (NETs). NETs are web-like structures of decondensed chromatin and neutrophilic proteins, including peptidyl-arginine deiminase 2 and 4 (PAD2, PAD4), that, once outside, can citrullinate plasma proteins, irreversibly changing their conformation and potentially their function. While the involvement of NETs in IRI is known mainly from rodent models, we aimed to determine the effect of NET formation and especially PADs-mediated extracellular protein citrullination in a porcine model of limb IRI. Methods We conducted our study on amputated pig forelimbs exposed to 1 h or 9 h of ischemia and then reperfused in vivo for 12 h. Limb weight, edema formation, compartmental pressure were measured, and skeletal muscle was analyzed by immunofluorescence (TUNEL assay and dystrophin staining) to evaluate tissue damage. Fibrin tissue deposition, complement deposition and NETs were investigated by immunofluorescence. Citrullinated plasma proteins were immunoprecipitated and citrullinated fibrinogen was identified in the plasma by Western blot and in the tissue by immunofluorescence and Western blot. Results Our data consolidate the involvement of NETs in a porcine model of limb IRI, correlating their contribution to damage extension with the duration of the ischemic time. We found a massive infiltration of NETs in the group subjected to 9 h ischemia compared to the 1 h and citrullinated fibrinogen levels, in plasma and tissue, were higher in 9 h ischemia group. We propose fibrinogen citrullination as one of the mechanisms contributing to the worsening of IRI. NETs and protein citrullination represent a potential therapeutic target, but approaches are still a matter of debate. Here we introduce the idea of therapeutic approaches against citrullination to specifically inhibit PADs extracellularly, avoiding the downstream effects of hypercitrullination and keeping PADs' and NETs' intracellular regulatory functions.
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Affiliation(s)
- Valentina Zollet
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences (GCB), University of Bern, Bern, Switzerland
| | - Isabel Arenas Hoyos
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences (GCB), University of Bern, Bern, Switzerland
- Department of Plastic and Hand Surgery, Inselspital, University Hospital Bern, Bern, Switzerland
| | - Stefanie Hirsiger
- Department of Plastic and Hand Surgery, Inselspital, University Hospital Bern, Bern, Switzerland
| | - Bilal Ben Brahim
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Maria Francesca Petrucci
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences (GCB), University of Bern, Bern, Switzerland
| | - Daniela Casoni
- Experimental Surgery Facility, Experimental Animal Center, University of Bern, Bern, Switzerland
| | - Junhua Wang
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Rolf Spirig
- Commonwealth Serum Laboratories (CSL) Behring, Research, Commonwealth Serum Laboratories (CSL) Behring Biologics Research Center, Bern, Switzerland
| | - Kay Nettelbeck
- Experimental Surgery Facility, Experimental Animal Center, University of Bern, Bern, Switzerland
| | - Luisana Garcia
- Experimental Surgery Facility, Experimental Animal Center, University of Bern, Bern, Switzerland
| | - Lena Fuest
- Department of Plastic and Hand Surgery, Inselspital, University Hospital Bern, Bern, Switzerland
| | - Esther Vögelin
- Department of Plastic and Hand Surgery, Inselspital, University Hospital Bern, Bern, Switzerland
| | - Mihai Constantinescu
- Department of Plastic and Hand Surgery, Inselspital, University Hospital Bern, Bern, Switzerland
| | - Robert Rieben
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
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38
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Yu S, Yao X. Advances on immunotherapy for osteosarcoma. Mol Cancer 2024; 23:192. [PMID: 39245737 PMCID: PMC11382402 DOI: 10.1186/s12943-024-02105-9] [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: 07/20/2024] [Accepted: 08/30/2024] [Indexed: 09/10/2024] Open
Abstract
Osteosarcoma is the most common primary bone cancer in children and young adults. Limited progress has been made in improving the survival outcomes in patients with osteosarcoma over the past four decades. Especially in metastatic or recurrent osteosarcoma, the survival rate is extremely unsatisfactory. The treatment of osteosarcoma urgently needs breakthroughs. In recent years, immunotherapy has achieved good therapeutic effects in various solid tumors. Due to the low immunogenicity and immunosuppressive microenvironment of osteosarcoma, immunotherapy has not yet been approved in osteosarcoma patients. However, immune-based therapies, including immune checkpoint inhibitors, chimeric antigen receptor T cells, and bispecfic antibodies are in active clinical development. In addition, other immunotherapy strategies including modified-NK cells/macrophages, DC vaccines, and cytokines are still in the early stages of research, but they will be hot topics for future study. In this review, we showed the functions of cell components including tumor-promoting and tumor-suppressing cells in the tumor microenvironment of osteosarcoma, and summarized the preclinical and clinical research results of various immunotherapy strategies in osteosarcoma, hoping to provide new ideas for future research in this field.
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Affiliation(s)
- Shengnan Yu
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xudong Yao
- Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Modestino L, Tumminelli M, Mormile I, Cristinziano L, Ventrici A, Trocchia M, Ferrara AL, Palestra F, Loffredo S, Marone G, Rossi FW, de Paulis A, Galdiero MR. Neutrophil exhaustion and impaired functionality in psoriatic arthritis patients. Front Immunol 2024; 15:1448560. [PMID: 39308858 PMCID: PMC11412820 DOI: 10.3389/fimmu.2024.1448560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 08/21/2024] [Indexed: 09/25/2024] Open
Abstract
Background Neutrophils (polymorphonuclear leukocytes, PMNs) are the most abundant subtype of white blood cells and are among the main actors in the inflammatory response. Psoriatic arthritis (PsA) is a chronic inflammatory disease affecting both the axial and peripheral joints. Typically associated with psoriasis, PsA can also affect multiple systems and organs, including the nails and entheses. Despite the involvement of PMNs in PsA, their specific role in the disease remains poorly understood. This study aimed to characterize the biological functions of PMNs and neutrophil-related mediators in PsA patients. Materials and methods 31 PsA patients and 22 healthy controls (HCs) were prospectively recruited. PMNs were isolated from peripheral blood and subjected to in vitro stimulation with lipopolysaccharide (LPS), N-Formylmethionyl-leucyl-phenylalanine (fMLP), tumor necrosis factor (TNF), phorbol 12-myristate 13-acetate (PMA), or control medium. Highly purified peripheral blood PMNs (>99%) were evaluated for activation status, reactive oxygen species (ROS) production, phagocytic activity, granular enzyme and neutrophil extracellular traps (NETs) release. Serum levels of matrix metalloproteinase-9 (MMP-9), myeloperoxidase (MPO), TNF, interleukin 23 (IL-23), and interleukin 17 (IL-17) were measured by ELISA. Serum Citrullinated histone H3 (CitH3) was measured as a NET biomarker. Results Activated PMNs from PsA patients displayed reduced activation, decreased ROS production, and impaired phagocytic activity upon stimulation with TNF, compared to HCs. PMNs from PsA patients also displayed reduced granular enzyme (MPO) and NET release. Serum analyses revealed elevated levels of MMP-9, MPO, TNF, IL-23, IL-17, and CitH3 in PsA patients compared to HCs. Serum CitH3 levels positively correlated with MPO and TNF concentrations, and IL-17 concentrations were positively correlated with IL-23 levels in PsA patients. These findings indicate that PMNs from PsA patients show reduced in vitro activation and function, and an increased presence of neutrophil-derived mediators (MMP-9, MPO, TNF, IL-23, IL-17, and CitH3) in their serum. Conclusions Taken together, our findings suggest that PMNs from PsA patients exhibit an "exhausted" phenotype, highlighting their plasticity and multifaceted roles in PsA pathophysiology.
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Affiliation(s)
- Luca Modestino
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
| | - Manuela Tumminelli
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
| | - Ilaria Mormile
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Leonardo Cristinziano
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Annagioia Ventrici
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Marialuisa Trocchia
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Anne Lise Ferrara
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Francesco Palestra
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
- Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council (CNR), Naples, Italy
| | - Francesca Wanda Rossi
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Amato de Paulis
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Maria Rosaria Galdiero
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
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Boșca AB, Dinte E, Mihu CM, Pârvu AE, Melincovici CS, Șovrea AS, Mărginean M, Constantin AM, Băbțan AM, Muntean A, Ilea A. Local Drug Delivery Systems as Novel Approach for Controlling NETosis in Periodontitis. Pharmaceutics 2024; 16:1175. [PMID: 39339210 PMCID: PMC11435281 DOI: 10.3390/pharmaceutics16091175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 09/02/2024] [Accepted: 09/04/2024] [Indexed: 09/30/2024] Open
Abstract
Periodontitis is a chronic inflammation caused by periodontopathogenic bacteria in the dental biofilm, and also involves the inflammatory-immune response of the host. Polymorphonuclear neutrophils (PMNs) play essential roles in bacterial clearance by multiple mechanisms, including the formation of neutrophil extracellular traps (NETs) that retain and destroy pathogens. During PD progression, the interaction between PMNs, NETs, and bacteria leads to an exaggerated immune response and a prolonged inflammatory state. As a lesion matures, PMNs accumulate in the periodontal tissues and die via NETosis, ultimately resulting in tissue injury. A better understanding of the role of NETs, the associated molecules, and the pathogenic pathways of NET formation in periodontitis, could provide markers of NETosis as reliable diagnostic and prognostic tools. Moreover, an assessment of NET biomarker levels in biofluids, particularly in saliva or gingival crevicular fluid, could be useful for monitoring periodontitis progression and treatment efficacy. Preventing excessive NET accumulation in periodontal tissues, by both controlling NETs' formation and their appropriate removal, could be a key for further development of more efficient therapeutic approaches. In periodontal therapy, local drug delivery (LDD) systems are more targeted, enhancing the bioavailability of active pharmacological agents in the periodontal pocket and surrounding tissues for prolonged time to ensure an optimal therapeutic outcome.
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Affiliation(s)
- Adina Bianca Boșca
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Elena Dinte
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Carmen Mihaela Mihu
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Alina Elena Pârvu
- Department of Pathophysiology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Carmen Stanca Melincovici
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Alina Simona Șovrea
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Mariana Mărginean
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Anne-Marie Constantin
- Department of Histology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.B.B.)
| | - Anida-Maria Băbțan
- Department of Oral Rehabilitation, Faculty of Dentistry, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania (A.I.)
| | - Alexandrina Muntean
- Department of Paediatric Dentistry, Faculty of Dentistry, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Aranka Ilea
- Department of Oral Rehabilitation, Faculty of Dentistry, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania (A.I.)
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Wang H, Zhang R, Jia X, Gao S, Gao T, Fan K, Li Y, Wang S, Qiao M, Yan S, Hui H, Dong H. Highly sensitive magnetic particle imaging of abdominal aortic aneurysm NETosis with anti-Ly6G iron oxide nanoparticles. Cell Death Discov 2024; 10:395. [PMID: 39237520 PMCID: PMC11377588 DOI: 10.1038/s41420-024-02156-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 08/13/2024] [Accepted: 08/20/2024] [Indexed: 09/07/2024] Open
Abstract
Abdominal aortic aneurysms (AAA) are a significant health concern in developed countries due to their considerable mortality rate. The crucial factor of the progression of AAA is the release of neutrophils and neutrophil extracellular traps (NETs). Magnetic particle imaging (MPI) is a new imaging technique that offers the capability to detect superparamagnetic iron oxide nanoparticles (SPION) with exceptional sensitivity. We aimed to investigate the functional imaging of MPI for the detection and monitoring of neutrophil infiltration within AAA. A novel multimodal imaging agent targeting neutrophils, PEG-Fe3O4-Ly6G-Cy7 nanoparticles (Ly6G NPs), were designed by coupling Fe3O4 nanoparticles with Ly6G antibodies and Cy7. The targeting and sensitivity of Ly6G NPs were assessed using MPI and fluorescence imaging (FLI) in the AAA mouse model. After the inhibition of NETosis, the degree of neutrophil infiltration and AAA severity were assessed using MPI with Ly6G NPs. Ly6G NPs accurately localized and quantitatively analyzed AAA lesion sites in mice using MPI/FLI/CT. Compared to the control group, elevated MPI and FLI signal intensities were detected at the abdominal aortic lesion site, and neutrophil infiltration and NETs accumulation were detected by histological analysis in the AAA models. After the inhibition of NETs accumulation in vivo, pathological damage in the abdominal aorta was significantly reduced, along with a decrease in the accumulation of Ly6G NPs and MPI signals. This multimodal MPI strategy revealed that nanoparticles targeting Ly6G can be used to detect neutrophil infiltration within AAA and monitor AAA severity.
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Affiliation(s)
- Heng Wang
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Ruijing Zhang
- Department of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Xiaohua Jia
- Key Laboratory of Molecular Imaging of Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Ultrasound, Shuozhou Grand Hospital of Shanxi Medical University, Shuozhou, 036000, China
| | - Siqi Gao
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Tingting Gao
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Keyi Fan
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Yaling Li
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Shule Wang
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Maolin Qiao
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Sheng Yan
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Hui Hui
- Key Laboratory of Molecular Imaging of Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China.
- National Key Laboratory of Kidney Diseases, Beijing, 100853, China.
| | - Honglin Dong
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China.
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Ibrahim A, Saleem N, Naseer F, Ahmed S, Munawar N, Nawaz R. From cytokines to chemokines: Understanding inflammatory signaling in bacterial meningitis. Mol Immunol 2024; 173:117-126. [PMID: 39116800 DOI: 10.1016/j.molimm.2024.07.004] [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: 10/16/2023] [Revised: 06/11/2024] [Accepted: 07/08/2024] [Indexed: 08/10/2024]
Abstract
Bacterial meningitis is a serious central nervous system (CNS) infection, claiming millions of human lives annually around the globe. The deadly infection involves severe inflammation of the protective sheath of the brain, i.e., meninges, and sometimes also consists of the brain tissue, called meningoencephalitis. Several inflammatory pathways involved in the pathogenesis of meningitis caused by Streptococcus pneumoniae, Neisseria meningitidis, Escherichia coli, Haemophilus influenzae, Mycobacterium tuberculosis, Streptococcus suis, etc. are mentioned in the scientific literature. Many in-vitro and in-vivo analyses have shown that after the disruption of the blood-brain barrier (BBB), these pathogens trigger several inflammatory pathways including Toll-Like Receptor (TLR) signaling in response to Pathogen-Associated Molecular Patterns (PAMPs), Nucleotide oligomerization domain (NOD)-like receptor-mediated signaling, pneumolysin related signaling, NF-κB signaling and many other pathways that lead to pro-inflammatory cascade and subsequent cytokine release including interleukine (IL)-1β, tumor necrosis factor(TNF)-α, IL-6, IL-8, chemokine (C-X-C motif) ligand 1 (CXCL1) along with other mediators, leading to neuroinflammation. The activation of another protein complex, nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing-3 (NLRP3) inflammasome, also takes place resulting in the maturation and release of IL-1β and IL-18, hence potentiating neuroinflammation. This review aims to outline the inflammatory signaling pathways associated with the pathogenesis of bacterial meningitis leading to extensive pathological changes in neurons, astrocytes, oligodendrocytes, and other central nervous system cells.
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Affiliation(s)
- Ahsan Ibrahim
- Shifa College of Pharmaceutical Sciences, Shifa Tameer e Millat University, Islamabad, Pakistan
| | - Nida Saleem
- Shifa College of Pharmaceutical Sciences, Shifa Tameer e Millat University, Islamabad, Pakistan
| | - Faiza Naseer
- Shifa College of Pharmaceutical Sciences, Shifa Tameer e Millat University, Islamabad, Pakistan; Department of Biosciences, Shifa Tameer e Millat University, Islamabad, Pakistan.
| | - Sagheer Ahmed
- Shifa College of Pharmaceutical Sciences, Shifa Tameer e Millat University, Islamabad, Pakistan.
| | - Nayla Munawar
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Rukhsana Nawaz
- Department of Clinical Psychology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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43
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Pascal M, Bax HJ, Bergmann C, Bianchini R, Castells M, Chauhan J, De Las Vecillas L, Hartmann K, Álvarez EI, Jappe U, Jimenez-Rodriguez TW, Knol E, Levi-Schaffer F, Mayorga C, Poli A, Redegeld F, Santos AF, Jensen-Jarolim E, Karagiannis SN. Granulocytes and mast cells in AllergoOncology-Bridging allergy to cancer: An EAACI position paper. Allergy 2024; 79:2319-2345. [PMID: 39036854 DOI: 10.1111/all.16246] [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: 04/25/2024] [Revised: 06/23/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
Derived from the myeloid lineage, granulocytes, including basophils, eosinophils, and neutrophils, along with mast cells, play important, often disparate, roles across the allergic disease spectrum. While these cells and their mediators are commonly associated with allergic inflammation, they also exhibit several functions either promoting or restricting tumor growth. In this Position Paper we discuss common granulocyte and mast cell features relating to immunomodulatory functions in allergy and in cancer. We highlight key mechanisms which may inform cancer treatment and propose pertinent areas for future research. We suggest areas where understanding the communication between granulocytes, mast cells, and the tumor microenvironment, will be crucial for identifying immune mechanisms that may be harnessed to counteract tumor development. For example, a comprehensive understanding of allergic and immune factors driving distinct neutrophil states and those mechanisms that link mast cells with immunotherapy resistance, might enable targeted manipulation of specific subpopulations, leading to precision immunotherapy in cancer. We recommend specific areas of investigation in AllergoOncology and knowledge exchange across disease contexts to uncover pertinent reciprocal functions in allergy and cancer and allow therapeutic manipulation of these powerful cell populations. These will help address the unmet needs in stratifying and managing patients with allergic diseases and cancer.
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Affiliation(s)
- Mariona Pascal
- Immunology Department, CDB, Hospital Clínic de Barcelona; Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
- Department of Medicine, Universitat de Barcelona, Barcelona, Spain
- RETICS Asma, reacciones adversas y alérgicas (ARADYAL) and RICORS Red De Enfermedades Inflamatorias (REI), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Heather J Bax
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, King's College London, London, UK
| | - Christoph Bergmann
- Department of Otorhinolaryngology, RKM740 Interdisciplinary Clinics, Düsseldorf, Germany
| | - Rodolfo Bianchini
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University Vienna, Vienna, Austria
- The interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, Vienna, Austria
| | - Mariana Castells
- Division of Allergy and Clinical Immunology, Drug Hypersensitivity and Desensitization Center, Mastocytosis Center, Brigham and Women's Hospital; Harvard Medical School, Boston, USA
| | - Jitesh Chauhan
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, King's College London, London, UK
| | | | - Karin Hartmann
- Division of Allergy, Department of Dermatology, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Elena Izquierdo Álvarez
- Department of Basic Medical Sciences, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Institute of Applied Molecular Medicine Instituto de Medicina Molecular Aplicada Nemesio Díez (IMMA), Madrid, Spain
| | - Uta Jappe
- Division of Clinical and Molecular Allergology, Priority Research Area Chronic Lung Diseases, Research Center Borstel, Leibniz Lung Center, German Center for Lung Research (DZL), Airway Research Center North (ARCN), Borstel, Germany
- Interdisciplinary Allergy Outpatient Clinic, Department of Pneumology, University of Luebeck, Luebeck, Germany
| | | | - Edward Knol
- Departments Center of Translational Immunology and Dermatology/Allergology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Francesca Levi-Schaffer
- Pharmacology and Experimental Therapeutics Unit, Institute for Drug Research, School of Pharmacy, Faculty of Medicine. The Hebrew University of Jerusalem, Ein Kerem Campus, Jerusalem, Israel
| | - Cristobalina Mayorga
- RETICS Asma, reacciones adversas y alérgicas (ARADYAL) and RICORS Red De Enfermedades Inflamatorias (REI), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Allergy Unit and Research Laboratory, Hospital Regional Universitario de Málaga-HRUM, Instituto de investigación Biomédica de Málaga -IBIMA-Plataforma BIONAND, Málaga, Spain
| | - Aurélie Poli
- Neuro-Immunology Group, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Frank Redegeld
- Division of Pharmacology, Utrecht Institute of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Alexandra F Santos
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, UK
- Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, UK
| | - Erika Jensen-Jarolim
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University Vienna, Vienna, Austria
- The interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, Vienna, Austria
| | - Sophia N Karagiannis
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, King's College London, London, UK
- Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Cancer Centre, London, UK
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Kostin S, Krizanic F, Kelesidis T, Pagonas N. The role of NETosis in heart failure. Heart Fail Rev 2024; 29:1097-1106. [PMID: 39073665 DOI: 10.1007/s10741-024-10421-x] [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] [Accepted: 07/09/2024] [Indexed: 07/30/2024]
Abstract
The hallmark of heart failure (HF) is structural myocardial remodeling including cardiomyocyte hypertrophy, fibrosis, cardiomyocyte cell death, and a low-grade aseptic inflammation. The initiation and maintenance of persistent chronic low-grade inflammation in HF are not fully understood. Oxidative stress-mediated neutrophil extracellular traps (NETs) are the main immune defense mechanism against external bacterial infections. Furthermore, NETs play important roles in noninfectious diseases. In the settings of myocardial infarction, myocarditis, or cardiomyopathies, neutrophils infiltrate the cardiac tissue and undergo NETosis that further aggravate the inflammation. A number of stimuli may cause NETosis that is a form of programmed cell death of neutrophils that is different from apoptosis of these cells. Whether NETosis is directly involved in the pathogenesis and development of HF is still unclear. In this review, we analyzed the mechanisms and markers of NETosis, especially placing the accent on the activation of the neutrophil-specific myeloperoxidase (MPO), elastase (NE), and peptidylarginine deiminase 4 (PAD4). These conclusions are supported by the recent genetic and pharmacological studies which demonstrated that MPO, NE, and PAD4 inhibitors are effective at least in the settings of post-myocardial infarction adverse remodeling, cardiac valve diseases, cardiomyopathies, and decompensated left ventricular hypertrophy whose deterioration can lead to HF. This is essential for understanding NETosis as a contributor to pathophysiology of HF and developments of new therapies of HF.
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Affiliation(s)
- Sawa Kostin
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany.
| | - Florian Krizanic
- Department of Internal Medicine and Cardiology, Medical School Theodor Fontane, University Hospital Ruppin-Brandenburg, Neuruppin, Germany
| | | | - Nikolaos Pagonas
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
- Department of Internal Medicine and Cardiology, Medical School Theodor Fontane, University Hospital Ruppin-Brandenburg, Neuruppin, Germany
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Zhou H, Zhu C, Zhao Q, Ni J, Zhang H, Yang G, Ge J, Fang C, Wei H, Zhou X, Zhang K. Wrecking neutrophil extracellular traps and antagonizing cancer-associated neurotransmitters by interpenetrating network hydrogels prevent postsurgical cancer relapse and metastases. Bioact Mater 2024; 39:14-24. [PMID: 38783926 PMCID: PMC11112132 DOI: 10.1016/j.bioactmat.2024.05.022] [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: 11/24/2023] [Revised: 04/13/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
Tumor-promoting niche after incomplete surgery resection (SR) can lead to more aggressive local progression and distant metastasis with augmented angiogenesis-immunosuppressive tumor microenvironment (TME). Herein, elevated neutrophil extracellular traps (NETs) and cancer-associated neurotransmitters (CANTs, e.g., catecholamines) are firstly identified as two of the dominant inducements. Further, an injectable fibrin-alginate hydrogel with high tissue adhesion has been constructed to specifically co-deliver NETs inhibitor (DNase I)-encapsulated PLGA nanoparticles and an unselective β-adrenergic receptor blocker (propranolol). The two components (i.e., fibrin and alginate) can respond to two triggers (thrombin and Ca2+, respectively) in postoperative bleeding to gelate, shaping into an interpenetrating network (IPN) featuring high strength. The continuous release of DNase I and PR can wreck NETs and antagonize catecholamines to decrease microvessel density, blockade myeloid-derived suppressor cells, secrete various proinflammatory cytokines, potentiate natural killer cell function and hamper cytotoxic T cell exhaustion. The reprogrammed TME significantly suppress locally residual and distant tumors, induce strong immune memory effects and thus inhibit lung metastasis. Thus, targetedly degrading NETs and blocking CANTs enabled by this in-situ IPN-based hydrogel drug depot provides a simple and efficient approach against SR-induced cancer recurrence and metastasis.
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Affiliation(s)
- Hang Zhou
- In-Patient Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Surgeons' Hall, No.246. XuefuRoad, Nangang District, Harbin City, Heilongjiang Prov, PR China
| | - Chunyan Zhu
- Department of Laboratory Medicine and Central Laboratory, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, Sichuan, PR China
- Ultrasound Research and Education Institute, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, Shanghai, 200072, PR China
| | - Qing Zhao
- In-Patient Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Surgeons' Hall, No.246. XuefuRoad, Nangang District, Harbin City, Heilongjiang Prov, PR China
| | - Jinliang Ni
- Department of Laboratory Medicine and Central Laboratory, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, Sichuan, PR China
- Ultrasound Research and Education Institute, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, Shanghai, 200072, PR China
| | - Haipeng Zhang
- Department of Laboratory Medicine and Central Laboratory, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, Sichuan, PR China
- Ultrasound Research and Education Institute, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, Shanghai, 200072, PR China
| | - Guangcan Yang
- Department of Laboratory Medicine and Central Laboratory, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, Sichuan, PR China
- Ultrasound Research and Education Institute, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, Shanghai, 200072, PR China
| | - Jianchao Ge
- Department of Laboratory Medicine and Central Laboratory, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, Sichuan, PR China
| | - Chao Fang
- Department of Laboratory Medicine and Central Laboratory, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, Sichuan, PR China
| | - Hong Wei
- In-Patient Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Surgeons' Hall, No.246. XuefuRoad, Nangang District, Harbin City, Heilongjiang Prov, PR China
| | - Xianli Zhou
- In-Patient Ultrasound Department, Second Affiliated Hospital of Harbin Medical University, Surgeons' Hall, No.246. XuefuRoad, Nangang District, Harbin City, Heilongjiang Prov, PR China
| | - Kun Zhang
- Department of Laboratory Medicine and Central Laboratory, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, Sichuan, PR China
- Ultrasound Research and Education Institute, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Yan-chang-zhong Road, Shanghai, 200072, PR China
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Roesch EA, Rahmaoui A, Lazarus RA, Konstan MW. The continuing need for dornase alfa for extracellular airway DNA hydrolysis in the era of CFTR modulators. Expert Rev Respir Med 2024; 18:677-691. [PMID: 39176450 DOI: 10.1080/17476348.2024.2394694] [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: 04/26/2024] [Revised: 08/11/2024] [Accepted: 08/16/2024] [Indexed: 08/24/2024]
Abstract
INTRODUCTION The availability of cystic fibrosis transmembrane conductance regulator (CFTR) modulators opens the possibility of discontinuing some chronic pulmonary therapies to decrease cystic fibrosis (CF) treatment burden. However, CFTR modulators may not adequately address neutrophilic inflammation, which contributes to a self-perpetual cycle of viscous CF sputum, airway obstruction, inflammation, and lung function decline. AREAS COVERED This review discusses the emerging role of neutrophil extracellular traps in CF and its role in CF sputum viscosity, airway obstruction, and inflammation, based on a literature search of PubMed (1990-present). We summarize clinical trials and real-world studies that support the efficacy of dornase alfa (Pulmozyme) in improving lung function and reducing pulmonary exacerbation in people with CF (PwCF), and we discuss the potential role of dornase alfa in reducing airway inflammation. We also examine the findings of short-term trials evaluating the discontinuation of mucoactive therapy in PwCF receiving CFTR modulators. EXPERT OPINION Long-term studies are needed to assess the impact of discontinuing mucoactive therapy in PwCF who are clinically stable while receiving CFTR modulatory therapy. Treatment decisions should take into account the severity of underlying lung disease. People with advanced CF will likely require ongoing mucoactive therapy.
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Affiliation(s)
- Erica A Roesch
- Department of Pediatrics, Rainbow Babies and Children's Hospital and Case Western Reserve University, Cleveland, OH, USA
| | | | - Robert A Lazarus
- Departments of Biological Chemistry and Early Discovery Biochemistry, Genentech, Inc., South San Francisco, CA, USA
| | - Michael W Konstan
- Department of Pediatrics, Rainbow Babies and Children's Hospital and Case Western Reserve University, Cleveland, OH, USA
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Mishra N, Gido CD, Herdendorf TJ, Hammel M, Hura GL, Fu ZQ, Geisbrecht BV. S. aureus Eap is a polyvalent inhibitor of neutrophil serine proteases. J Biol Chem 2024; 300:107627. [PMID: 39098536 PMCID: PMC11420654 DOI: 10.1016/j.jbc.2024.107627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/06/2024] Open
Abstract
Staphylococcus aureus expresses three high-affinity neutrophil serine protease (NSP) inhibitors known as the extracellular adherence protein domain (EAPs) proteins. Whereas EapH1 and EapH2 are comprised of a single EAP domain, the modular extracellular adherence protein (Eap) from S. aureus strain Mu50 consists of four EAP domains. We recently reported that EapH2 can simultaneously bind and inhibit cathepsin-G (CG) and neutrophil elastase (NE), which are the two most abundant NSPs. This unusual property of EapH2 arises from independent CG and NE-binding sites that lie on opposing faces of its EAP domain. Here we used X-ray crystallography and enzyme assays to show that all four individual domains of Eap (i.e. Eap1, Eap2, Eap3, and Eap4) exhibit an EapH2-like ability to form ternary complexes with CG and NE that inhibit both enzymes simultaneously. We found that Eap1, Eap2, and Eap3 have similar functional profiles insofar as NSP inhibition is concerned but that Eap4 displays an unexpected ability to inhibit two NE enzymes simultaneously. Using X-ray crystallography, we determined that this second NE-binding site in Eap4 arises through the same region of its EAP domain that also comprises its CG-binding site. Interestingly, small angle X-ray scattering data showed that stable tail-to-tail dimers of the NE/Eap4/NE ternary complex exist in solution. This arrangement is compatible with NSP-binding at all available sites in a two-domain fragment of Eap. Together, our work implies that Eap is a polyvalent inhibitor of NSPs. It also raises the possibility that higher-order structures of NSP-bound Eap may have unique functional properties.
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Affiliation(s)
- Nitin Mishra
- Department of Biochemistry & Molecular Biophysics, Kansas State University, Manhattan, Kansas, USA
| | - Carson D Gido
- Department of Biochemistry & Molecular Biophysics, Kansas State University, Manhattan, Kansas, USA
| | - Timothy J Herdendorf
- Department of Biochemistry & Molecular Biophysics, Kansas State University, Manhattan, Kansas, USA
| | - Michal Hammel
- Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Gregory L Hura
- Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Zheng-Qing Fu
- SER-CAT, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, USA; Department of Biochemistry & Molecular Biology, University of Georgia, Athens, Georgia, USA
| | - Brian V Geisbrecht
- Department of Biochemistry & Molecular Biophysics, Kansas State University, Manhattan, Kansas, USA.
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Chacón P, Vega-Rioja A, Doukkali B, Del Valle Rodriguez A, Fernández-Delgado L, Domínguez-Cereijo L, Segura C, Pérez-Machuca BM, Perkins JR, El Bekay R, Cornejo-García JA, Hajji N, Monteseirín J, Rivas-Pérez D. Human Neutrophils Couple Nitric Oxide Production and Extracellular Trap Formation in Allergic Asthma. Am J Respir Crit Care Med 2024; 210:593-606. [PMID: 38445953 DOI: 10.1164/rccm.202305-0889oc] [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: 05/28/2023] [Accepted: 03/06/2024] [Indexed: 03/07/2024] Open
Abstract
Rationale: Nitric oxide (NO) is increased in the airways and serum of patients with allergic asthma, suggesting an important role in asthma. NO production has been widely attributed to the canonical inducible NO synthase. Much effort has been made to inhibit this enzyme, with two outcomes: no asthma improvement and partial NO reduction, suggesting the involvement of an inducible NO synthase-independent source. Objectives: Neutrophils produce NO under inflammatory conditions, and their role in asthma has been overlooked. The present study analyzes their possible role as sources of NO. Methods: Our hypothesis was tested in 99 allergic patients with intermittent bronchial asthma and 26 healthy donors. NO production by blood and sputum neutrophils in response to allergens, anti-IgE, and anti-IgE receptor antibodies was assessed by Griess reagent, flow cytometry, and confocal microscopy. The formation of extracellular traps (ETs) as a possible consequence of NO production was quantified by Western blot and confocal microscopy, and reactive oxygen species were assessed with luminol-enhanced chemiluminescence. Measurements and Main Results: Among blood and sputum granulocytes from patients with allergic asthma, only neutrophils produce NO by an IgE-dependent mechanism. This production is independent of NO synthase, but dependent on a reaction between L-arginine and reactive oxygen species from NOX2 (NADPH oxidase). NO and ETosis are induced in parallel, and NO amplifies ET formation, which is a key mediator in asthma. Conclusions: Our findings reveal a novel role of neutrophils as the unique allergen/IgE-dependent NO source in allergic asthma, enhancing ET formation. These results suggest that NO produced by neutrophils needs further consideration in the treatment of allergic asthma.
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Affiliation(s)
- Pedro Chacón
- Laboratorio de Inmunología y Alergia-Fundación para la Gestión de la Investigación en Salud de Sevilla, Unidad de Gestión Clínica de Alergología, Hospital Universitario Virgen Macarena, Seville, Spain
- Departamento de Medicina, Facultad de Medicina, and
| | - Antonio Vega-Rioja
- Laboratorio de Inmunología y Alergia-Fundación para la Gestión de la Investigación en Salud de Sevilla, Unidad de Gestión Clínica de Alergología, Hospital Universitario Virgen Macarena, Seville, Spain
- Departamento de Medicina, Facultad de Medicina, and
| | - Bouchra Doukkali
- Laboratorio de Inmunología y Alergia-Fundación para la Gestión de la Investigación en Salud de Sevilla, Unidad de Gestión Clínica de Alergología, Hospital Universitario Virgen Macarena, Seville, Spain
| | - Alberto Del Valle Rodriguez
- Laboratorio de Inmunología y Alergia-Fundación para la Gestión de la Investigación en Salud de Sevilla, Unidad de Gestión Clínica de Alergología, Hospital Universitario Virgen Macarena, Seville, Spain
| | - Lourdes Fernández-Delgado
- Laboratorio de Inmunología y Alergia-Fundación para la Gestión de la Investigación en Salud de Sevilla, Unidad de Gestión Clínica de Alergología, Hospital Universitario Virgen Macarena, Seville, Spain
| | - Leticia Domínguez-Cereijo
- Laboratorio de Inmunología y Alergia-Fundación para la Gestión de la Investigación en Salud de Sevilla, Unidad de Gestión Clínica de Alergología, Hospital Universitario Virgen Macarena, Seville, Spain
| | - Carmen Segura
- Laboratorio de Inmunología y Alergia-Fundación para la Gestión de la Investigación en Salud de Sevilla, Unidad de Gestión Clínica de Alergología, Hospital Universitario Virgen Macarena, Seville, Spain
| | - Beatriz María Pérez-Machuca
- Laboratorio de Inmunología y Alergia-Fundación para la Gestión de la Investigación en Salud de Sevilla, Unidad de Gestión Clínica de Alergología, Hospital Universitario Virgen Macarena, Seville, Spain
| | - James R Perkins
- Centro de Investigación Biomédica en Red de Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Investigación Biomédica de Málaga, Málaga, Spain
| | - Rajaa El Bekay
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga Plataforma en Nanomedicina, Hospital Regional Universitario de Málaga, Málaga, Spain
- Obesity and Nutrition Centro de Investigación Biomédica en Red, Instituto de Salud Carlos III, Madrid, Spain
| | - José Antonio Cornejo-García
- Instituto de Investigación Biomédica de Málaga, Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud, Málaga, Spain
| | - Nabil Hajji
- Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, United Kingdom; and
| | - Javier Monteseirín
- Hospital Quirón Sagrado Corazón and Hospital Quirón Infanta-Luisa, Seville, Spain
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Clayton SM, Shafikhani SH, Soulika AM. Macrophage and Neutrophil Dysfunction in Diabetic Wounds. Adv Wound Care (New Rochelle) 2024; 13:463-484. [PMID: 38695109 DOI: 10.1089/wound.2023.0149] [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] [Indexed: 05/25/2024] Open
Abstract
Significance: The incidence of diabetes continues to rise throughout the world in an alarming rate. Diabetic patients often develop diabetic foot ulcers (DFUs), many of which do not heal. Non-healing DFUs are a major cause of hospitalization, amputation, and increased morbidity. Understanding the underlying mechanisms of impaired healing in DFU is crucial for its management. Recent Advances: This review focuses on the recent advancements on macrophages and neutrophils in diabetic wounds and DFUs. In particular, we discuss diabetes-induced dysregulations and dysfunctions of macrophages and neutrophils. Critical Issues: It is well established that diabetic wounds are characterized by stalled inflammation that results in impaired healing. Recent findings in the field suggest that dysregulation of macrophages and neutrophils plays a critical role in impaired healing in DFUs. The delineation of mechanisms that restore macrophage and neutrophil function in diabetic wound healing is the focus of intense investigation. Future Directions: The breadth of recently generated knowledge on the activity of macrophages and neutrophils in diabetic wound healing is impressive. Experimental models have delineated pathways that hold promise for the treatment of diabetic wounds and DFUs. These pathways may be useful targets for further clinical investigation.
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Affiliation(s)
- Shannon M Clayton
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, California, USA
- Department of Dermatology, School of Medicine, University of California Davis, Sacramento, California, USA
| | - Sasha H Shafikhani
- Department of Internal Medicine, Division of Hematology, Oncology and Cell Therapy, Rush University, Chicago, Illinois, USA
| | - Athena M Soulika
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, California, USA
- Department of Dermatology, School of Medicine, University of California Davis, Sacramento, California, USA
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50
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Phan L, Hammond D, Wilson NR, Groarke EM, Patnaik MM, Pemmaraju N. VEXAS syndrome (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic): clinical review in a rapidly emerging field. Leuk Lymphoma 2024; 65:1245-1257. [PMID: 38770970 DOI: 10.1080/10428194.2024.2349950] [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: 03/06/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/22/2024]
Abstract
VEXAS syndrome is a recently described entity characterized by systemic inflammatory and hematologic manifestations. The disease was first characterized by Beck et al. in 2020 in a study characterizing 25 patients with undiagnosed adult-onset inflammatory syndromes. While the literature regarding VEXAS syndrome has grown exponentially since 2020, there is still much to be understood. This lack of information leads to challenges in both the diagnosis and treatment of patients with VEXAS syndrome. Patients will often have a variety of clinical symptoms that can lead to missed or delayed diagnoses. Additionally, awareness of VEXAS syndrome is still developing among clinicians. In this comprehensive review, we summarize the current literature regarding VEXAS syndrome, and explore clinical updates of this emerging disease state. Our aim of this review is to increase awareness regarding this new disease state and identify research areas to better understand future treatment approaches for patients with VEXAS syndrome.
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Affiliation(s)
- Luan Phan
- Department of Internal Medicine, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Danielle Hammond
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Nathaniel R Wilson
- Department of Internal Medicine, The University of Texas McGovern Medical School, Houston, TX, USA
| | - Emma M Groarke
- Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Mrinal M Patnaik
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Naveen Pemmaraju
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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