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Ishikawa M, Murakami H, Higashi H, Inoue T, Fujisaki N, Kohama K. Sex Differences of Neutrophil Extracellular Traps on Lipopolysaccharide-Stimulated Human Neutrophils. Surg Infect (Larchmt) 2024. [PMID: 38957997 DOI: 10.1089/sur.2024.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024] Open
Abstract
Objective: Sex differences exist in sepsis, but the commitment of neutrophils to these differences remains unclear. Neutrophil extracellular traps (NETs) function to remove pathogens, yet excessive NETs release can contribute to organ damage. This study explores effects of the gender hormones on endotoxin-induced NETs using neutrophils from both male and female sources. Methods: Blood samples were collected from healthy volunteers. Isolated neutrophils were seeded in collagen-coated cell culture plates, and NETs were induced by lipopolysaccharide (LPS) treatment. After 15 minutes of LPS treatment, 17β-estradiol (0.03-272.4 ng/mL), testosterone enanthate (0.01-10 ng/mL), dimethyl sulfoxide, or ethanol (vehicle control) was added to the plates. These were incubated for three hours at 37°C with 5% CO2. Neutrophil extracellular traps formation was assessed using immunofluorescence staining. Results: Lipopolysaccharide-induced NETs formation was significantly greater in females than in males. In male-derived neutrophils, 17β-estradiol at above the blood concentrations significantly suppressed LPS-induced NETs. No effect was seen while using testosterone enanthate to NETs at any concentration. In female-derived neutrophils, 17β-estradiol, which was near to the highest concentration of non-pregnant women's blood, tended to increase NETs. Testosterone enanthate, which was near to female blood concentration, significantly promoted NETs. Conclusions: Sex differences existed in LPS-induced NETs of human neutrophil. In males, high concentrations of 17β-estradiol administration may have a suppressive effect on excessive NETs during infection. In females, endogenous gender hormones may promote NETs during infection. Sex differences in neutrophils may need to be considered in organ damage owing to NETs excess such as sepsis.
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Affiliation(s)
- Michiko Ishikawa
- Department of Emergency, Disaster and Critical Care Medicine, Hyogo Medical University, Nishinomiya, Japan
- Department of Medical Engineering, Faculty of Health Care Sciences, Himeji Dokkyo University, Hyogo, Japan
| | - Hiromoto Murakami
- Department of Emergency, Disaster and Critical Care Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Hideki Higashi
- Department of Medical Engineering, Faculty of Health Care Sciences, Himeji Dokkyo University, Hyogo, Japan
| | - Taketo Inoue
- Department of Emergency, Disaster and Critical Care Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Noritomo Fujisaki
- Department of Emergency, Disaster and Critical Care Medicine, Hyogo Medical University, Nishinomiya, Japan
- Department of Emergency Medicine, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Keisuke Kohama
- Department of Emergency, Disaster and Critical Care Medicine, Hyogo Medical University, Nishinomiya, Japan
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Aslanian-Kalkhoran L, Mehdizadeh A, Aghebati-Maleki L, Danaii S, Shahmohammadi-Farid S, Yousefi M. The role of neutrophils and neutrophil extracellular traps (NETs) in stages, outcomes and pregnancy complications. J Reprod Immunol 2024; 163:104237. [PMID: 38503075 DOI: 10.1016/j.jri.2024.104237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/23/2024] [Accepted: 03/07/2024] [Indexed: 03/21/2024]
Abstract
Neutrophils are the main components of innate immunity to eliminate infectious pathogens. Neutrophils play a role in several stages of the reproductive cycle, and their presence in the female reproductive system is highly regulated, so their function may change during pregnancy. Emerging evidence suggests that neutrophils are important at all stages of pregnancy, from implantation, placentation, and connective tissue regeneration to birth, as well as birth itself. Neutrophil extracellular traps (NETs) are defined as extracellular strands of unfolded DNA together with histone complexes and neutrophil granule proteins. NET formation is a new mechanism of these cells for their defense function. These strands containing DNA and antimicrobial peptides were initially recognized as one of the defense mechanisms of neutrophils, but later it was explained that they are involved in a variety of non-infectious diseases. Since the source of inflammation and tissue damage is the irregular activity of neutrophils, it is not surprising that NETosis are associated with a number of inflammatory conditions and diseases. The overexpression of NET components or non-principled NET clearance is associated with the risk of production and activation of autoantibodies, which results in participation in autoinflammatory and autoimmune disorders (SLE, RA), fibrosis, sepsis and other disorders such as vascular diseases, for example, thrombosis and atherosclerosis. Recent published articles have shown the role of neutrophils and extracellular traps (NETs) in pregnancy, childbirth and pregnancy-related diseases. The aim of this study was to identify and investigate the role of neutrophils and neutrophil extracellular traps (NETs) in the stages of pregnancy, as well as the complications caused by these cells.
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Affiliation(s)
- Lida Aslanian-Kalkhoran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Mehdizadeh
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Shahla Danaii
- Gynecology Department, Eastern Azerbaijan ACECR ART Centre, Eastern Azerbaijan Branch of ACECR, Tabriz, Iran
| | | | - Mehdi Yousefi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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3
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Shi XF, Zhang JL, Liu K, Wang L, Wang HP, Wu HY. Detection of serum major histocompatibility complex I (HLA-1) and β2-microglobulin (β2M) in pre-eclampsia using isobaric tags for relative and absolute quantitation (iTRAQ). Int J Gynaecol Obstet 2024; 165:1072-1084. [PMID: 38149341 DOI: 10.1002/ijgo.15312] [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: 08/11/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/28/2023]
Abstract
OBJECTIVE The purpose of this preliminary investigation into the pathogenesis of pre-eclampsia was to screen the differential proteins in the serum of pregnant women with normal pregnancy and early-onset pre-eclampsia using isobaric tags for relative and absolute quantitation (iTRAQ), so as to identify serum biomarkers for the early diagnosis of pre-eclampsia. METHODS We examined the peripheral serum of 58 normal pregnant women and 42 pregnant women with early-onset pre-eclampsia using iTRAQ; the differentially expressed proteins were screened for bioinformatics analysis; and the expression of candidate proteins human leukocyte antigen-1 (HLA-1) and β2-microglobulin (β2M) in placental tissues was detected using western blot. RESULTS We identified a total of 63 differential proteins in the serum of patients from the normal control group and the pre-eclampsia group, and this included 24 up-regulated proteins and 39 down-regulated proteins. The western blot results of placental tissue showed reduced HLA-1 expression (1.12 ± 0.23) in the placenta in the pre-eclampsia group as compared with the normal control group (1.34 ± 0.22). Consistent with the results observed in the serum, β2M in the placenta in the pre-eclampsia group was significantly elevated (1.05 ± 0.47) in comparison with the normal group (0.75 ± 0.33) (P < 0.05). CONCLUSION In this study, we found that iTRAQ technology was useful for identifying differentially expressed proteins in the peripheral serum of pregnant women with pre-eclampsia, and that HLA-1 and β2M, which may be involved in the occurrence of pre-eclampsia, show promise as predictive markers of pre-eclampsia.
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Affiliation(s)
- Xu-Feng Shi
- Department of Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Jing-Li Zhang
- Department of Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Kan Liu
- Department of Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Li Wang
- Department of Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Huan-Ping Wang
- Department of Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Hai-Ying Wu
- Department of Obstetrics, Henan Provincial People's Hospital, Zhengzhou, Henan, China
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4
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Zhu C, Shi S, Jiang P, Huang X, Zhao J, Jin Y, Shen Y, Zhou X, Liu H, Cai J. Curcumin Alleviates Hepatic Ischemia-Reperfusion Injury by Inhibiting Neutrophil Extracellular Traps Formation. J INVEST SURG 2023; 36:2164813. [PMID: 36603844 DOI: 10.1080/08941939.2022.2164813] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Hepatic ischemia-reperfusion injury (IRI) is a common innate immune-mediated sterile inflammatory response in liver transplantation and liver tumor resection. Neutrophil extracellular traps (NETs) can aggravate liver injury and activates innate immune response in the process of liver IRI. However, Curcumin (Cur) can reverse this damage and reduce NETs formation. Nevertheless, the specific regulatory mechanism is still unclear in liver IRI. This study aimed to explore the potential mechanisms that how does Cur alleviate hepatic IRI by inhibits NETs production and develop novel treatment regimens. METHODS We established a hepatic IRI model by subjecting C57BL/6J mice to 60 min of ischemia, followed by reperfusion for 2 h, 6 h, 12 h, and 24 h respectively. Subsequently, we were separated into 5 groups, namely the I/R group, Cur group, DNase-1 group, Cur + DNase1 group and sham operation group. Serum alanine aminotransferase (ALT) and aspartate transaminase (AST), Hematoxylin-eosin staining, immunofluorescence, and TUNEL analysis were applied to assess liver injury degree and NETs levels. Western blot assay was used to detect the protein levels of apoptosis-related proteins and MEK pathway proteins. RESULTS Cur could alleviate hepatic IRI by inhibiting the generation of NETs via suppressing the MEK/ERK pathway. In addition, this study also revealed that DNase-1 is vital for alleviating hepatic IRI by reducing the generation of NETs. CONCLUSIONS Cur combined with DNase-1 was more effective than the two drugs administered alone in alleviating hepatic IRI by inhibiting the generation of NETs. These results also suggested that curcumin combined with DNase-1 was a potential therapeutic strategy to mitigate hepatic IRI.
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Affiliation(s)
- Cunle Zhu
- The Institute of Transplantation Science, Qingdao University, Qingdao, Shandong Province, China.,Organ Transplantation Center, The Institute of Transplantation Science, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Shangheng Shi
- The Institute of Transplantation Science, Qingdao University, Qingdao, Shandong Province, China
| | - Peng Jiang
- The Institute of Transplantation Science, Qingdao University, Qingdao, Shandong Province, China
| | - Xijian Huang
- The Institute of Transplantation Science, Qingdao University, Qingdao, Shandong Province, China
| | - Jinxin Zhao
- The Institute of Transplantation Science, Qingdao University, Qingdao, Shandong Province, China
| | - Yan Jin
- The Institute of Transplantation Science, Qingdao University, Qingdao, Shandong Province, China
| | - Yuntai Shen
- The Institute of Transplantation Science, Qingdao University, Qingdao, Shandong Province, China
| | - Xin Zhou
- The Institute of Transplantation Science, Qingdao University, Qingdao, Shandong Province, China
| | - Huan Liu
- Organ Transplantation Center, The Institute of Transplantation Science, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Jinzhen Cai
- Organ Transplantation Center, The Institute of Transplantation Science, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
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Guillotin F, Fortier M, Portes M, Demattei C, Mousty E, Nouvellon E, Mercier E, Chea M, Letouzey V, Gris JC, Bouvier S. Vital NETosis vs. suicidal NETosis during normal pregnancy and preeclampsia. Front Cell Dev Biol 2023; 10:1099038. [PMID: 36684420 PMCID: PMC9849884 DOI: 10.3389/fcell.2022.1099038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/20/2022] [Indexed: 01/07/2023] Open
Abstract
Background: NETosis occurs in the context of infection or inflammation and results in the expulsion of decondensed DNA filaments called NETs (Neutrophil Extracellular Traps) into the extracellular environment. NETosis activates coagulation and contributes to the thrombotic risk of inflammatory diseases. To date, two mechanisms of NETosis have been identified: suicidal NETosis, in which neutrophils die after expelling the filaments; and vital NETosis, in which expulsion appears without altering the membrane. Human pregnancy is associated with a mild pro-inflammatory state, which is increased in the event of complications such as preeclampsia (PE). NETosis has been observed in these situations, but the mechanism of its production has not yet been studied. The aim of our study was to evaluate the balance of vital vs. suicidal NETosis in normal pregnancy and in PE. Patients/Methods: Neutrophils from healthy volunteers were stimulated with plasma from normal pregnancies (n = 13) and from women developing preeclampsia (n = 13). Immunofluorescent labelling was performed to determine the percentages and origin of NETs in both groups. Inhibition with suicidal or vital NETosis inhibitors was also performed to validate our results. Results: We found a significant increase in NETs in women with PE compared to women with normal pregnancies. We showed that vital and non-vital NETosis are present in normal and preeclamptic pregnancies. We demonstrated that the higher proportion of NETs observed in PE was due to non-vital NETosis whose main component is represented by suicidal NETosis. Discussion: These results suggest the important part of non-vital NETosis in the pathophysiology of PE.
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Affiliation(s)
| | - Mathieu Fortier
- Department of Haematology, University Hospital, Nîmes, France
| | - Marie Portes
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, France
| | - Christophe Demattei
- Department of Biostatistics, Public Health and Innovation in Methodology, Nîmes University Hospital, Nîmes, France
| | - Eve Mousty
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, France
| | - Eva Nouvellon
- Department of Haematology, University Hospital, Nîmes, France,UA11 INSERM—UM Institut Desbrest d’Épidémiologie et de Santé Publique (IDESP), Montpellier, France
| | - Eric Mercier
- Department of Haematology, University Hospital, Nîmes, France,UA11 INSERM—UM Institut Desbrest d’Épidémiologie et de Santé Publique (IDESP), Montpellier, France,Faculty of Pharmaceutical and Biological Sciences, Montpellier University, France
| | - Mathias Chea
- Department of Haematology, University Hospital, Nîmes, France
| | - Vincent Letouzey
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, France,Department of artificial polymers, Max Mousseron Institute of Biomolecules, CNRS UMR 5247, Univ Montpellier, Montpellier, France
| | - Jean-Christophe Gris
- Department of Haematology, University Hospital, Nîmes, France,UA11 INSERM—UM Institut Desbrest d’Épidémiologie et de Santé Publique (IDESP), Montpellier, France,Faculty of Pharmaceutical and Biological Sciences, Montpellier University, France,I. M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Sylvie Bouvier
- Department of Haematology, University Hospital, Nîmes, France,UA11 INSERM—UM Institut Desbrest d’Épidémiologie et de Santé Publique (IDESP), Montpellier, France,Faculty of Pharmaceutical and Biological Sciences, Montpellier University, France,*Correspondence: Sylvie Bouvier,
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6
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Han H, Liu C, Li M, Wang J, Liu YS, Zhou Y, Li ZC, Hu R, Li ZH, Wang RM, Guan YY, Zhang B, Wang GL. Increased intracellular Cl - concentration mediates neutrophil extracellular traps formation in atherosclerotic cardiovascular diseases. Acta Pharmacol Sin 2022; 43:2848-2861. [PMID: 35513433 PMCID: PMC9622838 DOI: 10.1038/s41401-022-00911-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 04/07/2022] [Indexed: 11/09/2022] Open
Abstract
Neutrophil extracellular traps (NETs) play crucial roles in atherosclerotic cardiovascular diseases such as acute coronary syndrome (ACS). Our preliminary study shows that oxidized low-density lipoprotein (oxLDL)-induced NET formation is accompanied by an elevated intracellular Cl- concentration ([Cl-]i) and reduced cystic fibrosis transmembrane conductance regulator (CFTR) expression in freshly isolated human blood neutrophils. Herein we investigated whether and how [Cl-]i regulated NET formation in vitro and in vivo. We showed that neutrophil [Cl-]i and NET levels were increased in global CFTR null (Cftr-/-) mice in the resting state, which was mimicked by intravenous injection of the CFTR inhibitor, CFTRinh-172, in wild-type mice. OxLDL-induced NET formation was aggravated by defective CFTR function. Clamping [Cl-]i at high levels directly triggered NET formation. Furthermore, we demonstrated that increased [Cl-]i by CFTRinh-172 or CFTR knockout increased the phosphorylation of serum- and glucocorticoid-inducible protein kinase 1 (SGK1) and generation of intracellular reactive oxygen species in neutrophils, and promoted oxLDL-induced NET formation and pro-inflammatory cytokine production. Consistently, peripheral blood samples obtained from atherosclerotic ApoE-/- mice or stable angina (SA) and ST-elevation ACS (STE-ACS) patients exhibited increased neutrophil [Cl-]i and SGK1 activity, decreased CFTR expression, and elevated NET levels. VX-661, a CFTR corrector, reduced the NET formation in the peripheral blood sample obtained from oxLDL-injected mice, ApoE-/- atherosclerotic mice or patients with STE-ACS by lowering neutrophil [Cl-]i. These results demonstrate that elevated neutrophil [Cl-]i during the development of atherosclerosis and ACS contributes to increased NET formation via Cl--sensitive SGK1 signaling, suggesting that defective CFTR function might be a novel therapeutic target for atherosclerotic cardiovascular diseases.
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Affiliation(s)
- Hui Han
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chang Liu
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Mei Li
- VIP Healthcare Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jin Wang
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Yao-Sheng Liu
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yi Zhou
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Zi-Cheng Li
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Rui Hu
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhi-Hong Li
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Ruo-Mei Wang
- School of Data and Computer Science, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yong-Yuan Guan
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bin Zhang
- VIP Healthcare Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
| | - Guan-Lei Wang
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.
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Pastorek M, Drobná D, Celec P. Could neutrophil extracellular traps drive the development of autism? Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.110929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Che H, Jatsenko T, Lannoo L, Stanley K, Dehaspe L, Vancoillie L, Brison N, Parijs I, Van Den Bogaert K, Devriendt K, Severi S, De Langhe E, Vermeire S, Verstockt B, Van Calsteren K, Vermeesch JR. Machine learning-based detection of immune-mediated diseases from genome-wide cell-free DNA sequencing datasets. NPJ Genom Med 2022; 7:55. [PMID: 36100603 PMCID: PMC9470560 DOI: 10.1038/s41525-022-00325-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 07/21/2022] [Indexed: 11/08/2022] Open
Abstract
The early detection of tissue and organ damage associated with autoimmune diseases (AID) has been identified as key to improve long-term survival, but non-invasive biomarkers are lacking. Elevated cell-free DNA (cfDNA) levels have been observed in AID and inflammatory bowel disease (IBD), prompting interest to use cfDNA as a potential non-invasive diagnostic and prognostic biomarker. Despite these known disease-related changes in concentration, it remains impossible to identify AID and IBD patients through cfDNA analysis alone. By using unsupervised clustering on large sets of shallow whole-genome sequencing (sWGS) cfDNA data, we uncover AID- and IBD-specific genome-wide patterns in plasma cfDNA in both the obstetric and general AID and IBD populations. We demonstrate that pregnant women with AID and IBD have higher odds of receiving inconclusive non-invasive prenatal screening (NIPS) results. Supervised learning of the genome-wide patterns allows AID prediction with 50% sensitivity at 95% specificity. Importantly, the method has the potential to identify pregnant women with AID during routine NIPS. Since AID pregnancies have an increased risk of severe complications, early recognition or detection of new-onset AID can redirect pregnancy management and limit potential adverse events. This method opens up new avenues for screening, diagnosis and monitoring of AID and IBD.
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Affiliation(s)
- Huiwen Che
- Department of Human Genetics, Laboratory for Cytogenetics and Genome Research, KU Leuven, Leuven, Belgium
| | - Tatjana Jatsenko
- Department of Human Genetics, Laboratory for Cytogenetics and Genome Research, KU Leuven, Leuven, Belgium
| | - Lore Lannoo
- Department of Gynecology and Obstetrics, University Hospitals Leuven, Leuven, Belgium
| | - Kate Stanley
- Department of Human Genetics, Laboratory for Cytogenetics and Genome Research, KU Leuven, Leuven, Belgium
| | - Luc Dehaspe
- Centre for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Leen Vancoillie
- Centre for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Nathalie Brison
- Centre for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Ilse Parijs
- Centre for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | | | | | - Sabien Severi
- Department of Rheumatology, University Hospitals Leuven, Leuven, Belgium
| | - Ellen De Langhe
- Department of Rheumatology, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, Laboratory of Tissue Homeostasis and Disease, KU Leuven, Leuven, Belgium
| | - Severine Vermeire
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
- Department of Chronic Diseases and Metabolism, TARGID-IBD, KU Leuven, Leuven, Belgium
| | - Bram Verstockt
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
- Department of Chronic Diseases and Metabolism, TARGID-IBD, KU Leuven, Leuven, Belgium
| | - Kristel Van Calsteren
- Department of Gynecology and Obstetrics, University Hospitals Leuven, Leuven, Belgium
| | - Joris Robert Vermeesch
- Department of Human Genetics, Laboratory for Cytogenetics and Genome Research, KU Leuven, Leuven, Belgium.
- Centre for Human Genetics, University Hospitals Leuven, Leuven, Belgium.
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9
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Wu X, Guo Y, Zeng H, Chen G. DNase-1 Treatment Exerts Protective Effects in Neurogenic Pulmonary Edema via Regulating the Neutrophil Extracellular Traps after Subarachnoid Hemorrhage in Mice. J Clin Med 2022; 11:jcm11154349. [PMID: 35955969 PMCID: PMC9369252 DOI: 10.3390/jcm11154349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/01/2022] [Accepted: 07/15/2022] [Indexed: 02/04/2023] Open
Abstract
It has been reported that neutrophil extracellular traps (NETs) involve inflammation, coagulation and cell death. Acute lung injury is also considered to be connected with NETs. Deoxyribonuclease I (DNase-1), a clinical medication for the respiratory system, has been reported to degrade cell-free DNA (cfDNA), which is the main component of NETs. Herein, we did research to clarify the therapeutic value of DNase-1 in NPE after SAH. In this model, we found that the treatment of DNase-1 remarkably decreased lung water, neutrophilic infiltration and inflammation. In addition, DNase-1 inhibited the NETs and proinflammatory subtype transition of the macrophages. Moreover, the depletion of neutrophil also verified the role of NETs in NPE. Our results suggest that DNase-1 has the potential to effectively relieve the NPE after SAH and to be a clinical drug for use after SAH.
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10
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Guo L, Shen J, Lei W, Yan P, Wang M, Zhou Q, Wang H, Wu J, Chen J, Wang R. Plasma Donor-Derived Cell-Free DNA Levels Are Associated With the Inflammatory Burden and Macrophage Extracellular Trap Activity in Renal Allografts. Front Immunol 2022; 13:796326. [PMID: 35386710 PMCID: PMC8977515 DOI: 10.3389/fimmu.2022.796326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 02/22/2022] [Indexed: 11/23/2022] Open
Abstract
Recent studies have confirmed the role of plasma donor-derived cell-free DNA (ddcfDNA) as a reliable non-invasive biomarker for allograft injury after kidney transplantation. Whereas the variability of plasma ddcfDNA levels among recipients has limited their clinical use. This study aimed to explore the intrinsic factors associated with plasma ddcfDNA elevation by investigating the impact of Banff lesions and inflammatory infiltrates on ddcfDNA levels in kidney transplant recipients. From March 2017 to September 2019, a total of 106 kidney transplant recipients with matched allograft biopsies were included, consisting of 13 recipients with normal/nonspecific changes, 13 recipients with borderline changes, 60 with T cell-mediated rejection, and 20 with antibody-mediated rejection. Histologic classification was performed according to the Banff 2017 criteria by two experienced pathologists. Plasma ddcfDNA fractions ranged from 0.12% to 10.22%, with a median level of 0.91%. Banff histology subelements including glomerulitis, intimal arteritis, and severe interstitial inflammation were correlated with increased plasma ddcfDNA levels. The inflammatory cell infiltrate in the allografts was phenotyped by immunochemistry and automatically counted by digital image recognition. Pearson correlation analysis revealed a significant positive correlation between macrophage infiltrations in allografts and plasma ddcfDNA levels. Additionally, macrophage extracellular trap (MET) activity was significantly associated with the rise in plasma ddcfDNA levels. Our findings demonstrated that plasma ddcfDNA could reflect the inflammatory state in renal allografts and suggested the potential role of METs in the pathogenesis of allograft injury.
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Affiliation(s)
- Luying Guo
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Jia Shen
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Wenhua Lei
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Pengpeng Yan
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Meifang Wang
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Qin Zhou
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Huiping Wang
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Jianyong Wu
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Jianghua Chen
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Rending Wang
- Kidney Disease Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China.,National Key Clinical Department of Kidney Diseases, Hangzhou, China.,Institute of Nephrology, Zhejiang University, Hangzhou, China.,Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
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11
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Ozeki A, Oogaki Y, Henmi Y, Karasawa T, Takahashi M, Takahashi H, Ohkuchi A, Shirasuna K. Elevated S100A9 in preeclampsia induces soluble endoglin and IL-1β secretion and hypertension via the NLRP3 inflammasome. J Hypertens 2022; 40:84-93. [PMID: 34412079 DOI: 10.1097/hjh.0000000000002981] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Maternal systemic and placental inflammatory responses participate in the pathogenesis of hypertensive disorders of pregnancy including preeclampsia, a pregnancy-specific syndrome, although the role of inflammation remains unclear. The NLRP3 inflammasome has been implicated in the control of sterile inflammation involved in preeclampsia. In the present study, we hypothesized that S100A9, as major alarmin, are associated with the pathogenesis of preeclampsia and induction of a preeclampsia-like phenotype in pregnant mice. METHODS Plasma were taken from normal pregnant women and preeclampsia patients. Human placental tissues, trophoblast cell line Sw.71 cells, and human umbilical vein endothelial cells (HUVEC) were treated with S100A9 with or without inhibitors associated with NLRP3 inflammasome. Pregnant mice were administered S100A9. RESULTS S100A9 was elevated in plasma and released from placentas of preeclampsia patients. S100A9 activated the NLRP3 inflammasome, resulting in IL-1β secretion, by human placental tissues and trophoblasts. In addition, secretion of soluble endoglin, a main contributor to the pathogenesis of preeclampsia, is regulated via S100A9-stimulated NLRP3 inflammasome activation in the human placenta and HUVECs. S100A9 administration significantly elevated maternal blood pressure and neutrophil accumulation within the placentas of pregnant mice, and both were significantly decreased in Nlrp3-knock out pregnant mice. CONCLUSION The results of this study demonstrated that S100A9 acts as a danger signal to activate the NLRP3 inflammasome in the placenta, associating with hypertension during pregnancy.
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Affiliation(s)
- Ayae Ozeki
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa
| | - Yuka Oogaki
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa
| | - Yuka Henmi
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa
| | | | | | - Hironori Takahashi
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Akihide Ohkuchi
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Koumei Shirasuna
- Laboratory of Animal Reproduction, Department of Animal Science, Tokyo University of Agriculture, Atsugi, Kanagawa
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12
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Giaglis S, Sur Chowdhury C, van Breda SV, Stoikou M, Tiaden AN, Daoudlarian D, Schaefer G, Buser A, Walker UA, Lapaire O, Hoesli I, Hasler P, Hahn S. Circulatory Neutrophils Exhibit Enhanced Neutrophil Extracellular Trap Formation in Early Puerperium: NETs at the Nexus of Thrombosis and Immunity. Int J Mol Sci 2021; 22:ijms222413646. [PMID: 34948443 PMCID: PMC8704360 DOI: 10.3390/ijms222413646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/17/2021] [Accepted: 12/17/2021] [Indexed: 11/16/2022] Open
Abstract
Pregnancy is associated with elevated maternal levels of cell-free DNA of neutrophil extracellular trap (NET) origin, as circulatory neutrophils exhibit increased spontaneous NET formation, mainly driven by G-CSF and finely modulated by sex hormones. The postpartum period, on the other hand, involves physiological alterations consistent with the need for protection against infections and fatal haemorrhage. Our findings indicate that all relevant serum markers of neutrophil degranulation and NET release are substantially augmented postpartum. Neutrophil pro-NETotic activity in vitro is also upregulated particularly in post-delivery neutrophils. Moreover, maternal puerperal neutrophils exhibit a strong pro-NETotic phenotype, associated with increased levels of all key players in the generation of NETs, namely citH3, MPO, NE, and ROS, compared to non-pregnant and pregnant controls. Intriguingly, post-delivery NET formation is independent of G-CSF in contrast to late gestation and complemented by the presence of TF on the NETs, alterations in the platelet activity status, and activation of the coagulation cascade, triggered by circulating microparticles. Taken together, our results reveal the highly pro-NETotic and potentially procoagulant nature of postpartum neutrophils, bridging an overt immune activation with possible harmful thrombotic incidence.
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Affiliation(s)
- Stavros Giaglis
- Laboratory for Prenatal Medicine, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (C.S.C.); (S.V.v.B.); (M.S.); (G.S.); (O.L.); (I.H.); (S.H.)
- University Women’s Hospital, University Hospital Basel, 4056 Basel, Switzerland
- Division of Rheumatology, Department of Internal Medicine, Kantonsspital Aarau, 5001 Aarau, Switzerland;
- Laboratory for Experimental Rheumatology, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (A.N.T.); (D.D.); (U.A.W.)
- Department of Rheumatology, University Hospital Basel, 4031 Basel, Switzerland
- Correspondence:
| | - Chanchal Sur Chowdhury
- Laboratory for Prenatal Medicine, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (C.S.C.); (S.V.v.B.); (M.S.); (G.S.); (O.L.); (I.H.); (S.H.)
- University Women’s Hospital, University Hospital Basel, 4056 Basel, Switzerland
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Shane Vontelin van Breda
- Laboratory for Prenatal Medicine, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (C.S.C.); (S.V.v.B.); (M.S.); (G.S.); (O.L.); (I.H.); (S.H.)
- University Women’s Hospital, University Hospital Basel, 4056 Basel, Switzerland
- Division of Rheumatology, Department of Internal Medicine, Kantonsspital Aarau, 5001 Aarau, Switzerland;
| | - Maria Stoikou
- Laboratory for Prenatal Medicine, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (C.S.C.); (S.V.v.B.); (M.S.); (G.S.); (O.L.); (I.H.); (S.H.)
- University Women’s Hospital, University Hospital Basel, 4056 Basel, Switzerland
| | - André N. Tiaden
- Laboratory for Experimental Rheumatology, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (A.N.T.); (D.D.); (U.A.W.)
- Department of Rheumatology, University Hospital Basel, 4031 Basel, Switzerland
| | - Douglas Daoudlarian
- Laboratory for Experimental Rheumatology, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (A.N.T.); (D.D.); (U.A.W.)
- Department of Rheumatology, University Hospital Basel, 4031 Basel, Switzerland
| | - Guenther Schaefer
- Laboratory for Prenatal Medicine, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (C.S.C.); (S.V.v.B.); (M.S.); (G.S.); (O.L.); (I.H.); (S.H.)
- University Women’s Hospital, University Hospital Basel, 4056 Basel, Switzerland
| | - Andreas Buser
- Swiss Red Cross, Blood Transfusion Center, Department of Internal Medicine, Division of Hematology, University Hospital Basel, 4031 Basel, Switzerland;
| | - Ulrich A. Walker
- Laboratory for Experimental Rheumatology, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (A.N.T.); (D.D.); (U.A.W.)
- Department of Rheumatology, University Hospital Basel, 4031 Basel, Switzerland
| | - Olav Lapaire
- Laboratory for Prenatal Medicine, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (C.S.C.); (S.V.v.B.); (M.S.); (G.S.); (O.L.); (I.H.); (S.H.)
- University Women’s Hospital, University Hospital Basel, 4056 Basel, Switzerland
| | - Irene Hoesli
- Laboratory for Prenatal Medicine, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (C.S.C.); (S.V.v.B.); (M.S.); (G.S.); (O.L.); (I.H.); (S.H.)
- University Women’s Hospital, University Hospital Basel, 4056 Basel, Switzerland
| | - Paul Hasler
- Division of Rheumatology, Department of Internal Medicine, Kantonsspital Aarau, 5001 Aarau, Switzerland;
| | - Sinuhe Hahn
- Laboratory for Prenatal Medicine, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland; (C.S.C.); (S.V.v.B.); (M.S.); (G.S.); (O.L.); (I.H.); (S.H.)
- University Women’s Hospital, University Hospital Basel, 4056 Basel, Switzerland
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13
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Shen D, Lu Y, Li G, Hu M, Li S, Ju H, Zhang M, Wang X. Mechanism of neutrophil extracellular traps generation and their role in trophoblasts apoptosis in gestational diabetes mellitus. Cell Signal 2021; 88:110168. [PMID: 34634453 DOI: 10.1016/j.cellsig.2021.110168] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/24/2021] [Accepted: 10/05/2021] [Indexed: 12/23/2022]
Abstract
Gestational diabetes mellitus (GDM) is a metabolic syndrome occurring in pregnant women and increases the risk of placental dysplasia. Neutrophil extracellular traps (NETs) may play a critical role in placental dysplasia. NETosis (neutrophil cell death by NET release) depends on NADPH/ROS pathway. In view of the adiponectin which is widely believed to be reduced in GDM patients suppresses NADPH oxidase and ROS generation of neutrophil. We speculate that increased NET release is associated with hypoadiponectinemia. Trophoblast apoptosis is significantly increased in GDM patients, but it is not clear whether NETs promotes cell apoptosis. This study aims to reveal the mechanism of Neutrophil Extracellular Traps generation and their role in trophoblast apoptosis in Gestational Diabetes Mellitus. We investigated the generation of NETs by cell-free DNA (cf-DNA) quantification, live-cell imaging, and reactive oxygen species (ROS) measurement. ERK1/2 and p38 MAPK signalling pathway proteins were detected by western blotting. The Cell Counting Kit-8 (CCK-8) assay, flow cytometry, and western blotting were performed to explore the effects of NETs on trophoblast apoptosis. We found that adiponectin inhibited NET release by suppressing ROS production, and p38 MAPK and ERK1/2 proteins were involved in the process. Further, NETs promoted trophoblast apoptosis by activating the ROS-dependent mitochondrial pathway, which is mediated by ERK1/2 signalling. The current study demonstrated that hypoadiponectinemia is the cause of NETs formation and NETs promoting trophoblast apoptosis.
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Affiliation(s)
- Di Shen
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, 324 Jingwu Street, Jinan, Shandong 250021, China; Department of Obstetrics and Gynaecology, Maternal and Child Health Care Hospital of Shandong Provincial, Cheeloo College of Medicine, Shandong University, 238 Jingshi East Road, Jinan, Shandong 250014, China
| | - Yuan Lu
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, 324 Jingwu Street, Jinan, Shandong 250021, China
| | - Guangzhen Li
- Department of General Surgery, Qilu Hospital of Shandong University, 107 Wenhua West Road, 251000, Jinan, China
| | - Min Hu
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, 324 Jingwu Street, Jinan, Shandong 250021, China
| | - Shanling Li
- Department of Obstetrics and Gynaecology, Maternal and Child Health Care Hospital of Shandong Provincial, Cheeloo College of Medicine, Shandong University, 238 Jingshi East Road, Jinan, Shandong 250014, China
| | - Hui Ju
- Department of Obstetrics and Gynaecology, Maternal and Child Health Care Hospital of Shandong Provincial, Cheeloo College of Medicine, Shandong University, 238 Jingshi East Road, Jinan, Shandong 250014, China
| | - Meihua Zhang
- The Laboratory of Placenta-Related Diseases, Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, 238 Jingshi East Road, Jinan, Shandong 250014, China
| | - Xietong Wang
- Department of Obstetrics and Gynaecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, 324 Jingwu Street, Jinan, Shandong 250021, China; Department of Obstetrics and Gynaecology, Maternal and Child Health Care Hospital of Shandong Provincial, Cheeloo College of Medicine, Shandong University, 238 Jingshi East Road, Jinan, Shandong 250014, China; The Laboratory of Placenta-Related Diseases, Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, 238 Jingshi East Road, Jinan, Shandong 250014, China.
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14
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Lin X, Zhang Y, He X, Chen Y, Chen N, Liu J, Wang M, Li Y, Yang H, Fan L, Hou Y, Li J, Wu C, Qi H, Zhang H, Xiao X. The Choline Metabolite TMAO Inhibits NETosis and Promotes Placental Development in GDM of Humans and Mice. Diabetes 2021; 70:2250-2263. [PMID: 34315726 DOI: 10.2337/db21-0188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 07/23/2021] [Indexed: 11/13/2022]
Abstract
Choline metabolite trimethylamine N-oxide (TMAO) has been recognized as a risk factor of gestational diabetes mellitus (GDM), but its exact role in GDM has not been reported. In this study, we focused on the placenta development to reveal the role of TMAO in GDM. We found that the TMAO levels in peripheral and cord plasma were increased in women with GDM and that TMAO levels were positively correlated with newborn weight and placental thickness. Neutrophil extracellular traps (NETs) in the peripheral and cord plasma and the myeloperoxidase expression in the placenta of women with GDM also increased. NETs could inhibit the proliferation, migration, invasion, and angiogenesis of HTR-8/Svneo cells. However, TMAO not only could inhibit the formation of NETs but also could enhance the biological function of HTR-8/Svneo cells. With induction of GDM in NETs-deficient PAD4-/- and wild-type mice, the placental weight of PAD4-/- mice increased significantly. TMAO feeding also inhibited the formation of NETs and further increased the weight of the placenta and fetuses, and this increase did not affect the placental structure. Our data indicate that higher TMAO levels and the formation of abnormal NETs were associated with GDM. TMAO not only could promote the development of the placenta and fetuses but also could inhibit the formation of NETs.
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Affiliation(s)
- Xiaojing Lin
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- International Collaborative Joint Laboratory of Reproduction and Development of Ministry of Education of P.R.C., Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yunqi Zhang
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- International Collaborative Joint Laboratory of Reproduction and Development of Ministry of Education of P.R.C., Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Xiaoling He
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- International Collaborative Joint Laboratory of Reproduction and Development of Ministry of Education of P.R.C., Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yan Chen
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Endocrinology and Nephrology, Chongqing Emergency Medical Center, Chongqing University Central Hospital, Chongqing, China
| | - Nan Chen
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Juncheng Liu
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Miaoran Wang
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Yue Li
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Hong Yang
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Fan
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yi Hou
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Laboratory of Traditional Chinese Medicine, Experimental Teaching & Management Center, Chongqing Medical University, Chongqing, China
| | - Jibin Li
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Chaodong Wu
- Department of Nutrition and Food Science, Texas A&M University, College Station, TX
| | - Hongbo Qi
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- International Collaborative Joint Laboratory of Reproduction and Development of Ministry of Education of P.R.C., Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hua Zhang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- International Collaborative Joint Laboratory of Reproduction and Development of Ministry of Education of P.R.C., Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoqiu Xiao
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- International Collaborative Joint Laboratory of Reproduction and Development of Ministry of Education of P.R.C., Chongqing Medical University, Chongqing, China
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
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15
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Circulating Nucleic Acids in Maternal Plasma and Serum in Pregnancy Complications: Are They Really Useful in Clinical Practice? A Systematic Review. Mol Diagn Ther 2021; 24:409-431. [PMID: 32367458 DOI: 10.1007/s40291-020-00468-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE A systematic review was carried out to summarize the available evidence to assess whether circulating nucleic acids in maternal plasma and serum (CNAPS) have the potential to serve as extra and independent markers for the prediction and/or progression monitoring of the most common and severe complications of pregnancy, including preeclampsia, intrauterine growth restriction, preterm delivery, morbidly adherent placenta, gestational diabetes, antiphospholipid syndrome, threatened abortion, intrahepatic cholestasis of pregnancy, and hyperemesis gravidarum. METHOD A comprehensive literature search of the MEDLINE (PubMed), EMBASE, and ISI Web of Knowledge databases was conducted to identify relevant studies that included amounts of CNAPS in the abovementioned pregnancy complications. RESULTS Eighty-three studies met the eligibility criteria. The vast majority of studies were conducted on the quantity of total circulating cell free DNA (cfDNA) and cell free fetal DNA (cffDNA), and some were conducted on messenger RNA (mRNA) species. A few studies have instead evaluated the cell free DNA fetal fraction (cfDNAff), but only in a limited number of pregnancy complications. Despite the growing interest and the abundance of the papers available, little information is available for other new CNAPS, including microRNA (miRNA), long noncoding RNA (lncRNA), mitochondrial DNA (mtDNA), and circular RNA. CONCLUSION Due to the heterogeneity of the populations enrolled, the scarcity of the studies that adjusted the CNAPS values for possible confounding factors, and the difficulty in interpreting the published data, no conclusion regarding the statistical robustness and clinical relevance of the data can be made at present. If assayed at the third trimester, the CNAPS have, however, shown better performance, and could be used in populations already at risk of developing complications as suggested by the presence of other clinical features. Other CNAPS, including miRNA, are under investigation, especially for the screening of gestational diabetes mellitus, but no data about their clinical utility are available. Circulating DNA (cfDNA, cffDNA, and cfDNAff) and mRNA have not been properly evaluated yet, especially in patients asymptomatic early in pregnancy but who developed complications later, perhaps because of the high cost of these techniques and the availability of other predictors of pregnancy complications (biochemical, biophysical, and ultrasound markers). Therefore, from the analysis of the data, the positive predictive value is not available. As regards the new CNAPS, including miRNA, there are still no sufficient data to understand if they can be promising markers for pregnancy complications monitoring and screening, since CNAPS are statistically weak and expensive. It is reasonable to currently conclude that the use of the CNAPS in clinical practice is not recommended.
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16
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Liu L, Zhang W, Su Y, Chen Y, Cao X, Wu J. The impact of neutrophil extracellular traps on deep venous thrombosis in patients with traumatic fractures. Clin Chim Acta 2021; 519:231-238. [PMID: 34015302 DOI: 10.1016/j.cca.2021.04.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 04/04/2021] [Accepted: 04/24/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND Deep venous thrombosis (DVT) is the most common complication in patients with traumatic fractures. The neutrophil extracellular traps (NETs) can promote thrombus formation. In this prospective study, we investigated the role of NETs in thrombosis in patients with traumatic fractures to evaluate whether the biomarkers of NETs can be used to help predict the risk of thrombosis. METHODS Traumatic fracture patients were enrolled in this prospective observational cohort study. Healthy controls (Control); patients with lower extremity fractures who neither present with nor develop DVT (Trauma non-DVT); patients with lower extremity fractures who do not present with DVT but do develop DVT (Trauma DVT); and patients with lower extremity fractures who present with DVT (DVT) were included. NETs biomarker levels of Citrullinated Histone H3 (H3Cit), cell-free DNA (cfDNA) and nucleosomes in the plasma were determined. The D-dimer and fibrin(-ogen) degradation products (FDP) level in plasma was measured. Statistical analysis of the test results was performed to assess changes in NETs biomarker levels during thrombosis in patients with traumatic fractures. RESULTS The H3Cit levels in the DVT group were significantly greater than in the Trauma non-DVT group and Trauma DVT group (1.88(1.11, 3.35) ng/ml Vs 0.38(0.10, 1.17) ng/ml, P ≤ 0.05). The level of cfDNA was significantly greater in patients with traumatic fractures and was higher after thrombosis than before. The levels of D-dimer in the DVT, Trauma DVT, and Trauma non-DVT groups were significantly greater than in the Control group (5.11(3.97, 8.11) mg/l; 6.12(2.59, 18.49) mg/l; 2.99(0.99, 9.02) mg/l Vs 0.18(0.08,0.24) mg/l, P < 0.05). The distribution of FDP levels in each group was similar to that of D-dimer. Data are presented as medians (25th percentile, 75th percentile). CONCLUSIONS NETs released by neutrophils are involved in the formation of DVTs in patients with traumatic fractures. H3Cit and cfDNA can assist the diagnosis of DVT in patients with traumatic fractures.
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Affiliation(s)
- Lei Liu
- Department of Laboratory Medicine, Beijing Jishuitan Hospital, Peking University Fourth School of Clinical Medicine, Beijing, China; Department of Clinical Laboratory, Liyuan Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Wenjie Zhang
- Department of Laboratory Medicine, Beijing Jishuitan Hospital, Peking University Fourth School of Clinical Medicine, Beijing, China
| | - Yu Su
- Department of Laboratory Medicine, Beijing Jishuitan Hospital, Beijing, China
| | - Yuying Chen
- Department of Laboratory Medicine, Beijing Jishuitan Hospital, Peking University Fourth School of Clinical Medicine, Beijing, China
| | - Xiangyu Cao
- Department of Laboratory Medicine, Beijing Jishuitan Hospital, Peking University Fourth School of Clinical Medicine, Beijing, China
| | - Jun Wu
- Department of Laboratory Medicine, Beijing Jishuitan Hospital, Peking University Fourth School of Clinical Medicine, Beijing, China; Department of Laboratory Medicine, Beijing Jishuitan Hospital, Beijing, China.
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17
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Jiang M, Shen N, Zhou H, Wang Y, Lin S, Wu J, Di W. The enrichment of neutrophil extracellular traps impair the placentas of systemic lupus erythematosus through accumulating decidual NK cells. Sci Rep 2021; 11:6870. [PMID: 33767298 PMCID: PMC7994714 DOI: 10.1038/s41598-021-86390-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 03/15/2021] [Indexed: 01/06/2023] Open
Abstract
Despite the advances made in the management of pregnancies in women with systemic lupus erythematosus (SLE), the rate of adverse pregnancy outcomes is still higher than that in the general population. In the last few years, neutrophil extracellular traps (NETs) were proven to be detrimental in both autoimmune diseases and placental injury. We investigated whether NETs could be detected in the placentas of pregnant individuals with SLE and explored the relationship between NETs and decidual natural killer cells (dNKs), which comprise the majority of immune cells at the maternal–fetal interface, using clinical samples and animal models. In this study, we found that the infiltration of NETs and dNKs, especially CD56+CD16+ NK cells, was significantly increased in pregnant individuals with SLE with placental insufficiency. In the murine models of SLE, the number of dNKs was significantly decreased due to the decreased formation of NETs affected by Ly6G. Moreover, the histopathological placental injury was reduced, with a remarkable increase in fetal birth weight. This study shows that NETs may contribute to immunological disorder in the placenta and the pathological changes in pregnancies with SLE, which provides a research basis for further explorations of the mechanism of SLE in placental impairment.
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Affiliation(s)
- Meng Jiang
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, China
| | - Nan Shen
- Department of Rheumatology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.,Shanghai Institute of Rheumatology, Shanghai, 200001, China
| | - Haibo Zhou
- Department of Rheumatology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.,Shanghai Institute of Rheumatology, Shanghai, 200001, China
| | - You Wang
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, China
| | - Sihan Lin
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, China
| | - Jiayue Wu
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China. .,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, China.
| | - Wen Di
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China. .,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, China. .,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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18
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Amaral LM, Sandrim VC, Kutcher ME, Spradley FT, Cavalli RC, Tanus-Santos JE, Palei AC. Circulating Total Cell-Free DNA Levels Are Increased in Hypertensive Disorders of Pregnancy and Associated with Prohypertensive Factors and Adverse Clinical Outcomes. Int J Mol Sci 2021; 22:E564. [PMID: 33429954 PMCID: PMC7826953 DOI: 10.3390/ijms22020564] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 02/07/2023] Open
Abstract
Previous studies have described increased circulating cell-free DNA (cfDNA) in hypertensive disorders of pregnancy (HDP). Here, we aimed first to confirm this information using a simple, but sensible fluorescent assay, and second to investigate whether total cfDNA is associated with circulating factors known to be linked to the pathophysiology of HDP as well as with poor maternal-fetal outcomes. We studied 98 women with healthy pregnancies (HP), 88 with gestational hypertension (GH), and 91 with preeclampsia (PE). Total DNA was extracted from plasma using the QIAamp DNA blood mini kit and quantified using Quant-iT™ PicoGreen® dsDNA fluorescent detection kit. We found higher total cfDNA levels in GH and PE (197.0 and 174.2 ng/mL, respectively) than in HP (140.5 ng/mL; both p < 0.0001). Interestingly, total cfDNA levels were elevated in both male and female-bearing pregnancies diagnosed with either HDP, and in more severe versus less severe HDP cases, as classified according to responsiveness to antihypertensive therapy. In addition, total cfDNA was independently associated with HDP, and a cutoff concentration of 160 ng/mL provided appropriate sensitivity and specificity values for diagnosing GH and PE compared to HP (70-85%, both p < 0.0001). Moreover, high total cfDNA was associated with adverse clinical outcomes (high blood pressure, low platelet count, preterm delivery, fetal growth restriction) and high prohypertensive factors (sFLT-1, sEndoglin, MMP-2). These findings represent a step towards to the establishment of cfDNA as a diagnostic tool and the need to understand its role in HDP.
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Affiliation(s)
- Lorena M. Amaral
- Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216-4500, USA;
| | - Valeria C. Sandrim
- Department of Biophysics and Pharmacology, Institute of Biosciences, Universidade Estadual Paulista, Botucatu, SP 18618-689, Brazil;
| | - Matthew E. Kutcher
- Department of Surgery, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216-4500, USA; (M.E.K.); (F.T.S.)
| | - Frank T. Spradley
- Department of Surgery, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216-4500, USA; (M.E.K.); (F.T.S.)
| | - Ricardo C. Cavalli
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Brazil;
| | - Jose E. Tanus-Santos
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP 14049-900, Brazil;
| | - Ana C. Palei
- Department of Surgery, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216-4500, USA; (M.E.K.); (F.T.S.)
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19
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Zhou F, Li C, Zhang SY. NLRP3 inflammasome: a new therapeutic target for high-risk reproductive disorders? Chin Med J (Engl) 2020; 134:20-27. [PMID: 33395071 PMCID: PMC7862815 DOI: 10.1097/cm9.0000000000001214] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Indexed: 02/06/2023] Open
Abstract
ABSTRACT The NOD-like receptor protein 3 (NLRP3) inflammasome is a key regulator of the host's immune response, and many immune and metabolic disorders are linked to its activation. This review aimed to investigate and clarify the relationship between this inflammasome and high-risk reproductive disorders. Papers cited here were retrieved from PubMed up to August 2020 using the keywords "NLRP3" or "NALP3", "caspase-1", "endometriosis", "gestational diabetes", "interleukin (IL)-18", "IL-1β", "pre-eclampsia (PE)", "preterm birth", "polycystic ovarian syndrome (PCOS)", "recurrent spontaneous abortion (RSA)", and combinations of these terms. The results show that NLRP3 inflammasome is associated with various high-risk reproductive disorders and many inflammatory factors are secreted during its activation, such as IL-1β induced during the development of endometriosis. PCOS is also associated with activation of the NLRP3 inflammasome, especially in overweight patients. It also participates in the pathogenesis of RSA and is activated in fetal membranes before preterm birth. The placentas of pregnant women with PE show higher expression of the NLRP3 inflammasome, and gestational diabetes mellitus occurs simultaneously with its activation. Current evidence suggest that the NLRP3 inflammasome plays an important role in female reproductive disorders. New treatment and management methods targeting it might help reduce the incidence of such disorders and improve neonatal outcomes.
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Affiliation(s)
- Feng Zhou
- Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital Affiliated to School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, Zhejiang 310016, China
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20
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Santocki M, Kolaczkowska E. On Neutrophil Extracellular Trap (NET) Removal: What We Know Thus Far and Why So Little. Cells 2020; 9:cells9092079. [PMID: 32932841 PMCID: PMC7565917 DOI: 10.3390/cells9092079] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/05/2020] [Accepted: 09/08/2020] [Indexed: 12/17/2022] Open
Abstract
Although neutrophil extracellular traps (NETs) were discovered only 16 years ago, they have already taken us from heaven to hell as we learned that apart from beneficial trapping of pathogens, they cause, or contribute to, numerous disorders. The latter is connected to their persistent presence in the blood or tissue, and we hardly know how they are removed in mild pathophysiological conditions and why their removal is impaired in multiple severe pathological conditions. Herein, we bring together all data available up till now on how NETs are cleared—from engaged cells, their phenotypes, to involved enzymes and molecules. Moreover, we hypothesize on why NET removal is challenged in multiple disorders and propose further directions for studies on NET removal as well as possible therapeutic strategies to have them cleared.
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21
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Shmarina GV, Ershova ES, Simashkova NV, Nikitina SG, Chudakova JM, Veiko NN, Porokhovnik LN, Basova AY, Shaposhnikova AF, Pukhalskaya DA, Pisarev VM, Korovina NJ, Gorbachevskaya NL, Dolgikh OA, Bogush M, Kutsev SI, Kostyuk SV. Oxidized cell-free DNA as a stress-signaling factor activating the chronic inflammatory process in patients with autism spectrum disorders. J Neuroinflammation 2020; 17:212. [PMID: 32677958 PMCID: PMC7364812 DOI: 10.1186/s12974-020-01881-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/25/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Autism spectrum disorders (ASD) are known to be associated with an inflammatory process related to immune system dysfunction. This study's aim was to investigate the role of cell-free DNA in chronic inflammatory process in ASD patients. METHODS The study included 133 ASD patients and 27 healthy controls. Sixty-two ASD patients were demonstrated to have mild-to-moderate disease severity (group I) and 71 individuals to have severe ASD (group II). Plasma cell-free (cf) DNA characteristics, plasma cytokine concentrations, expression of the genes for NFкB1 transcription factor and pro-inflammatory cytokines TNFα, IL-1β and IL-8 in peripheral blood lymphocytes (PBL) of ASD patients, and unaffected controls were investigated. Additionally, in vitro experiments with oxidized DNA supplementation to PBL cultures derived from ASD patients and healthy controls were performed. RESULTS The data indicates that ASD patients have demonstrated increased cfDNA concentration in their circulation. cfDNA of patients with severe ASD has been characterized by a high abundance of oxidative modification. Furthermore, ASD patients of both groups have shown elevated plasma cytokine (IL-1β, IL-8, IL-17A) levels and heightened expression of genes for NFкB1 nuclear factor and pro-inflammatory cytokines TNFα, IL-1β, and IL-8 in PBL. In vitro experiments have shown that NF-κB/cytokine mRNA expression profiles of ASD patient PBL treated with oxidized DNA fragments were significantly different from those of healthy controls. CONCLUSIONS It may be proposed that oxidized cfDNA plays a role of stress-signaling factor activating the chronic inflammatory process in patients with ASD.
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Affiliation(s)
- Galina V Shmarina
- Research Centre for Medical Genetics, Moscow, Russia.
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.
- G.N. Gabrichevsky Institute of Epidemiology and Microbiology, Moscow, Russia.
| | - Elizaveta S Ershova
- Research Centre for Medical Genetics, Moscow, Russia
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | | | | | | | | | | | - Anna Y Basova
- G.E. Sukhareva Scientific-Practical Centre for Mental Health of Children and Adolescents, Moscow, Russia
| | - Antonina F Shaposhnikova
- G.E. Sukhareva Scientific-Practical Centre for Mental Health of Children and Adolescents, Moscow, Russia
| | | | - Vladimir M Pisarev
- V. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, Moscow, Russia
| | - Natalia J Korovina
- G.E. Sukhareva Scientific-Practical Centre for Mental Health of Children and Adolescents, Moscow, Russia
| | - Natalia L Gorbachevskaya
- G.E. Sukhareva Scientific-Practical Centre for Mental Health of Children and Adolescents, Moscow, Russia
| | | | - Marina Bogush
- Rowan University Biological Sciences Department, Science Hall, Glassboro, NJ, USA
| | | | - Svetlana V Kostyuk
- Research Centre for Medical Genetics, Moscow, Russia
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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22
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Xu C, Guo Z, Zhang J, Lu Q, Tian Q, Liu S, Li K, Wang K, Tao Z, Li C, Lv Z, Zhang Z, Yang X, Yang F. Non-invasive prediction of fetal growth restriction by whole-genome promoter profiling of maternal plasma DNA: a nested case-control study. BJOG 2020; 128:458-466. [PMID: 32364311 PMCID: PMC7818264 DOI: 10.1111/1471-0528.16292] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2020] [Indexed: 11/28/2022]
Abstract
Objective To predict fetal growth restriction (FGR) by whole‐genome promoter profiling of maternal plasma. Design Nested case–control study. Setting Hospital‐based. Population or Sample 810 pregnancies: 162 FGR cases and 648 controls. Methods We identified gene promoters with a nucleosome footprint that differed between FGR cases and controls based on maternal plasma cell‐free DNA (cfDNA) nucleosome profiling. Optimal classifiers were developed using support vector machine (SVM) and logistic regression (LR) models. Main outcome measures Genes with differential coverages in promoter regions through the low‐coverage whole‐genome sequencing data analysis among FGR cases and controls. Receiver operating characteristic (ROC) analysis (area under the curve [AUC], accuracy, sensitivity and specificity) was used to evaluate the performance of classifiers. Results Through the low‐coverage whole‐genome sequencing data analysis of FGR cases and controls, genes with significantly differential DNA coverage at promoter regions (−1000 to +1000 bp of transcription start sites) were identified. The non‐invasive ‘FGR classifier 1’ (CFGR1) had the highest classification performance (AUC, 0.803; 95% CI 0.767–0.839; accuracy, 83.2%) was developed based on 14 genes with differential promoter coverage using a support vector machine. Conclusions A promising FGR prediction method was successfully developed for assessing the risk of FGR at an early gestational age based on maternal plasma cfDNA nucleosome profiling. Tweetable abstract A promising FGR prediction method was successfully developed, based on maternal plasma cfDNA nucleosome profiling. A promising FGR prediction method was successfully developed, based on maternal plasma cfDNA nucleosome profiling.
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Affiliation(s)
- C Xu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Z Guo
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - J Zhang
- Department of Obstetrics and Gynaecology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Q Lu
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Q Tian
- Department of Obstetrics and Gynaecology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - S Liu
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - K Li
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - K Wang
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Z Tao
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - C Li
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Z Lv
- Department of Pathology, Cangzhou People's Hospital, Cangzhou, China.,Department of Pharmacy, Cangzhou People's Hospital, Cangzhou, China
| | - Z Zhang
- Department of Pathology, Cangzhou People's Hospital, Cangzhou, China.,Department of Pharmacy, Cangzhou People's Hospital, Cangzhou, China
| | - X Yang
- Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - F Yang
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Zhujiang Hospital, Southern Medical University, Guangzhou, China
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23
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Guo Z, Yang F, Zhang J, Zhang Z, Li K, Tian Q, Hou H, Xu C, Lu Q, Ren Z, Yang X, Lv Z, Wang K, Yang X, Wu Y, Yang X. Whole-Genome Promoter Profiling of Plasma DNA Exhibits Diagnostic Value for Placenta-Origin Pregnancy Complications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1901819. [PMID: 32274292 PMCID: PMC7141029 DOI: 10.1002/advs.201901819] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 02/03/2020] [Indexed: 06/06/2023]
Abstract
Placenta-origin pregnancy complications, including preeclampsia (PE), gestational diabetes mellitus (GDM), fetal growth restriction (FGR), and macrosomia (MA) are common occurrences in pregnancy, resulting in significant morbidity and mortality for both mother and fetus. However, despite their frequency, there are no reliable methods for the early diagnosis of these complications. Since cfDNA is mainly derived from placental trophoblasts and maternal hematopoietic cells, it might have information for gene expression which can be used for disease prediction. Here, low coverage whole-genome sequencing on plasma DNA from 2,199 pregnancies is performed based on retrospective cohorts of 3,200 pregnant women. Read depth in the promoter regions is examined to define read-depth distribution patterns of promoters for pregnancy complications and controls. Using machine learning methods, classifiers for predicting pregnancy complications are developed. Using these classifiers, complications are successfully predicted with an accuracy of 80.3%, 78.9%, 72.1%, and 83.0% for MA, FGR, GDM, and PE, respectively. The findings suggest that promoter profiling of cfDNA may be used as a biological biomarker for predicting pregnancy complications at early gestational age.
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Affiliation(s)
- Zhiwei Guo
- Institute of Antibody EngineeringSchool of Laboratory Medicine and BiotechnologySouthern Medical UniversityGuangzhou510515China
| | - Fang Yang
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhou510515China
| | - Jun Zhang
- Department of ObstetricsThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhou510630China
| | - Zhigang Zhang
- Department of PathologyCangzhou People's HospitalCangzhou061000China
| | - Kun Li
- Institute of Antibody EngineeringSchool of Laboratory Medicine and BiotechnologySouthern Medical UniversityGuangzhou510515China
| | - Qi Tian
- Department of ObstetricsThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhou510630China
| | - Hongying Hou
- Department of ObstetricsThe Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhou510630China
| | - Cailing Xu
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhou510515China
| | - Qianwen Lu
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhou510515China
| | - Zhonglu Ren
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhou510515China
| | - Xiaoxue Yang
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhou510515China
| | - Zenglu Lv
- Department of PathologyCangzhou People's HospitalCangzhou061000China
| | - Ke Wang
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhou510515China
| | - Xinping Yang
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhou510515China
| | - Yingsong Wu
- Institute of Antibody EngineeringSchool of Laboratory Medicine and BiotechnologySouthern Medical UniversityGuangzhou510515China
| | - Xuexi Yang
- Institute of Antibody EngineeringSchool of Laboratory Medicine and BiotechnologySouthern Medical UniversityGuangzhou510515China
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24
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Moodley M, Moodley J, Naicker T. Neutrophil extracellular traps: The synergy source in the placentae of HIV infected women with pre-eclampsia. Pregnancy Hypertens 2020; 20:69-74. [PMID: 32193148 DOI: 10.1016/j.preghy.2020.03.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 03/02/2020] [Accepted: 03/07/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVES To immuno-localize histone H2A expression as a marker of neutrophil extracellular traps (NETs) in the placenta; and to quantify and compare the percentage H2A immune-expression as a marker of NETs in the placental intervillous space according to: pregnancy type, HIV status and across the study population. STUDY DESIGN The participants to the study were a pregnant South African population group of African ancestry (n = 60) stratified as normotensive (N) (n = 30) or pre-eclamptic (PE) (n = 30) and further subdivided as HIV infected (HIV+) (n = 15) or HIV naïve (HIV-) (n = 15). Following informed consent placental tissue samples were obtained at the time of delivery. Immunohistochemistry using the anti-histone 2A (H2A) antibody as a biomarker of NETs, and morphometric image analysis was used to immuno-localize and quantify placental H2A immuno-expression respectively in the placental inter-villous space. Statistical analysis was performed using Graph Pad Prism software (Version 5). MAIN OUTCOME MEASURES To determine if HIV neutralizes the elevated NETs in PE. RESULTS NETs were localized within the inter-villous space surrounding the exchange villi and conducting villi of placental tissue. Based on HIV status, a significant elevation in H2A immuno-expression was observed in the HIV+ compared to the HIV- group (p = 0.0008) and in the pre-eclampsia HIV- compared to the normotensive HIV- group (p = 0.0008). However, a significant decline in H2A immuno-expression was observed in the PEHIV+ group compared to the NHIV+ group (p = 0.0072). CONCLUSIONS Both PE and HIV elevate placental NETs; however, they synergistically downregulate NETs expression. Further investigations are required to interrogate the signaling pathways involved to establish potential NET-targeted therapeutic actions.
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Affiliation(s)
- Merantha Moodley
- Discipline of Optics and Imaging, Doris Duke Medical Research Institute, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
| | - Jagidesa Moodley
- Women's Health and HIV Research Group, Department of Obstetrics and Gynecology, University of KwaZulu-Natal, South Africa
| | - Thajasvarie Naicker
- Discipline of Optics and Imaging, Doris Duke Medical Research Institute, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
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25
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Guo Y, Liu R, Chen L, Wu W, Zhang S. Neutrophil activation and neutrophil derived neutrophil extracellular trap formation in patients with coronary artery ectasia. BMC Cardiovasc Disord 2020; 20:101. [PMID: 32122307 PMCID: PMC7050139 DOI: 10.1186/s12872-020-01398-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 02/23/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND This study investigated neutrophil activation and neutrophil-derived extracellular traps formation in coronary artery ectasia. METHODS We enrolled 90 patients who underwent coronary angiography, and included 30 patients with coronary artery ectasia (CAE), 30 patients with obstructive coronary artery disease (CAD) and 30 patients with normal coronary arteries (CON). Intra-neutrophil mean myeloperoxidase index (MPXI) was determined using an automated blood cell counter (ADVIA2120 Hematology System). Serum concentrations of plasma adhesion molecules, cytokines, and neutrophil-derived extracellular traps were quantified. RESULTS The intra-neutrophil mean myeloperoxidase index was reduced in CAE patients compared to CAD and CON patients (1.02 ± 3.01, 3.22 ± 3.03, 3.52 ± 4.25, respectively; CAE vs CAD, p = 0.016 and CAE vs CON, p = 0.007). Multiple logistic regression analysis showed that MPXI and dsDNA were independent factors that predicted the presence of CAE. CAE patients had higher levels of plasma adhesion molecules (P-selectin glycoprotein ligand-1, E-selectin, L-selectin) and interleukin 1 beta levels. Neutrophil extracellular trap concentrations were significantly higher in the CAE group compared to CAD and CON patients (284.31(258.33-449.91) ng/mL, 225.12(203.34-257.13) ng/mL, and 247.37(231.04-273.01) ng/mL, respectively; CAE vs CAD, p = 0.000 and CAE vs CON, p = 0.001). CONCLUSIONS Peripheral neutrophils from CAE patients were activated and neutrophil extracellular traps were elevated in the plasma. IL-1β and soluble adhesion molecules may be the causal factors for neutrophil activation.
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Affiliation(s)
- Yuchao Guo
- Department of Cardiology, Peking Union Medical College & Chinese Academy of Medical Science, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Beijing, 100730, China
| | - Ruifeng Liu
- Department of Cardiology, Beijing Friendship Hospital, Capital Medical University, No. 95 Yong An Road, Beijing, 100050, China
| | - Lianfeng Chen
- Department of Cardiology, Peking Union Medical College & Chinese Academy of Medical Science, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Beijing, 100730, China
| | - Wei Wu
- Department of Cardiology, Peking Union Medical College & Chinese Academy of Medical Science, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Beijing, 100730, China.
| | - Shuyang Zhang
- Department of Cardiology, Peking Union Medical College & Chinese Academy of Medical Science, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Beijing, 100730, China.
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26
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Shirasuna K, Karasawa T, Takahashi M. Role of the NLRP3 Inflammasome in Preeclampsia. Front Endocrinol (Lausanne) 2020; 11:80. [PMID: 32161574 PMCID: PMC7053284 DOI: 10.3389/fendo.2020.00080] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/07/2020] [Indexed: 12/14/2022] Open
Abstract
Reproduction involves tightly regulated series of events and the immune system is involved in an array of reproductive processes. Disruption of well-controlled immune functions leads to infertility, placental inflammation, and numerous pregnancy complications, including preeclampsia (PE). Inflammasomes are involved in the process of pathogen clearance and sterile inflammation. They are large multi-protein complexes that are located in the cytosol and play key roles in the production of the pivotal inflammatory cytokines, interleukin (IL)-1β and IL-18, and pyroptosis. The nucleotide-binding oligomerization domain, leucine-rich repeat-, and pyrin domain-containing 3 (NLRP3) inflammasome is a key mediator of sterile inflammation induced by various types of damage-associated molecular patterns (DAMPs). Recent evidence indicates that the NLRP3 inflammasome is involved in pregnancy dysfunction, including PE. Many DAMPs (uric acid, palmitic acid, high-mobility group box 1, advanced glycation end products, extracellular vesicles, cell-free DNA, and free fatty acids) are increased and associated with pregnancy complications, especially PE. This review focuses on the role of the NLRP3 inflammasome in the pathophysiology of PE.
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Affiliation(s)
- Koumei Shirasuna
- Department of Animal Science, Tokyo University of Agriculture, Atsugi, Japan
- *Correspondence: Koumei Shirasuna
| | - Tadayoshi Karasawa
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Japan
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27
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Preeclamptic patient-derived circulating cell-free DNA activates the production of inflammatory cytokines via toll-like receptor 9 signalling in the human placenta. J Hypertens 2019; 37:2452-2460. [DOI: 10.1097/hjh.0000000000002208] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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28
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Yadav R, Yoo DG, Kahlenberg JM, Bridges SL, Oni O, Huang H, Stecenko A, Rada B. Systemic levels of anti-PAD4 autoantibodies correlate with airway obstruction in cystic fibrosis. J Cyst Fibros 2019; 18:636-645. [PMID: 30638826 PMCID: PMC6620172 DOI: 10.1016/j.jcf.2018.12.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 12/15/2022]
Abstract
Cystic fibrosis (CF) airway disease is characterized by the long-term presence of neutrophil granulocytes. Formation of neutrophil extracellular traps (NETs) and/or autoantibodies directed against extracellular components of NETs are possible contributors to neutrophil-mediated lung damage in CF. The goal of this study was to measure their levels in CF adults compared to healthy controls and subjects with rheumatologic diseases known to develop NET-related autoantibodies and pathologies, rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE). Sera were analyzed from the following number of subjects: 37 CF, 23 healthy controls (HC), 20 RA, and 21 SLE. CF had elevated serum myeloperoxidase (MPO) concentrations (347.5±56.1 ng/ml, mean+/-S.E.M., p = .0132) compared to HC (144.5±14.6 ng/ml) but not of neutrophil elastase (NE) complexed with alpha-1-antitrypsin, cell-free DNA or NE-DNA complexes. The peptidylarginine deiminase 4 (PAD4) enzyme is required for NET formation and associated DNA release in neutrophils. Serum levels of anti-PAD4 antibodies (Ab) were elevated in CF (p = .0147) compared to HC and showed an inverse correlation with a measure of lung function, FEV1% predicted (r = -0.5020, p = .015), as did MPO levels (r = -0.4801, p = .0026). Anti-PAD4 Ab levels in CF sera associated with lung infection by P. aeruginosa, but not that by S. aureus, age, sex, CF-related diabetes or the presence of musculoskeletal pain. Serum levels of anti-citrullinated protein Abs (ACPAs) and anti-nucleosome Abs were not elevated in CF compared to HC (p = .7498, p = .0678). In summary, adult CF subjects develop an autoimmune response against NET components that correlates with worsening lung disease.
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Affiliation(s)
- Ruchi Yadav
- Department of Infectious Diseases, College of Veterinary Medicine, The University of Georgia, Athens, GA, USA
| | - Dae-Goon Yoo
- Department of Infectious Diseases, College of Veterinary Medicine, The University of Georgia, Athens, GA, USA
| | - J Michelle Kahlenberg
- Division of Rheumatology, University of Michigan, School of Medicine, Ann Arbor, MI, USA
| | - S Louis Bridges
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, School of Medicine, Birmingham, AL, USA
| | - Oluwadamilola Oni
- Department of Infectious Diseases, College of Veterinary Medicine, The University of Georgia, Athens, GA, USA
| | - Hanwen Huang
- Department of Epidemiology & Biostatistics, College of Public Health, The University of Georgia, Athens, GA, USA
| | - Arlene Stecenko
- Division of Pulmonology, Allergy/Immunology, Cystic Fibrosis and Sleep, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Balázs Rada
- Department of Infectious Diseases, College of Veterinary Medicine, The University of Georgia, Athens, GA, USA.
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29
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Hahn S, Hasler P, Vokalova L, van Breda SV, Than NG, Hoesli IM, Lapaire O, Rossi SW. Feto-Maternal Microchimerism: The Pre-eclampsia Conundrum. Front Immunol 2019; 10:659. [PMID: 31001268 PMCID: PMC6455070 DOI: 10.3389/fimmu.2019.00659] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/11/2019] [Indexed: 12/15/2022] Open
Abstract
Feto-maternal microchimerism (FMM) involves bidirectional cross-placental trafficking during pregnancy, leading to a micro-chimeric state that can persist for decades. In this manner a pregnant woman will harbor cells from her mother, as well as, cells from her child. Historically, eclampsia, a severe disorder of pregnancy provided the basis for FMM following the detection of trophoblast cells in the lungs of deceased women. Bi-directional cell trafficking between mother and fetus is also altered in pre-eclampsia and has been suggested to contribute to the underlying etiology. FMM has been implicated in tolerance promotion, remission of auto-inflammatory disorders during pregnancy, or the development of autoimmune conditions post-partum. The underlying mechanism whereby the host immune system is modulated is unclear but appears to involve HLA class II molecules, in that incompatibility between mother and fetus promotes remission of rheumatoid arthritis, whereas feto-maternal HLA compatibility may assist in the post-partum initiation of scleroderma. Couples having a high degree of HLA class II compatibility have an increased risk for pre-eclampsia, while the occurrence of scleroderma and rheumatoid arthritis is greater in pre-eclamptic cases than in women with normal pregnancies, suggesting a long term autoimmune predisposition. Since pregnant women with pre-eclampsia exhibit significantly lower levels of maternally-derived micro-chimerism, the question arises whether pre-eclampsia and post-partum development of autoimmune conditions occur due to the failure of the grandmothers cells to adequately regulate an inappropriate micro-chimeric constellation.
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Affiliation(s)
- Sinuhe Hahn
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Paul Hasler
- Division of Rheumatology, Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
| | - Lenka Vokalova
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Shane Vontelin van Breda
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland.,Division of Rheumatology, Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
| | - Nandor Gabor Than
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | | | - Olav Lapaire
- Department of Obstetrics, University Women's Hospital Basel, Basel, Switzerland
| | - Simona W Rossi
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland
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30
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Hahn S, Hasler P, Vokalova L, van Breda SV, Lapaire O, Than NG, Hoesli I, Rossi SW. The role of neutrophil activation in determining the outcome of pregnancy and modulation by hormones and/or cytokines. Clin Exp Immunol 2019; 198:24-36. [PMID: 30768780 DOI: 10.1111/cei.13278] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2018] [Indexed: 12/16/2022] Open
Abstract
Neutrophils are often exclusively considered as a first-line innate immune defence, able to rapidly kill or trap pathogens and causing in case of over-activation tissue damage. In the female reproductive tract, however, the presence and activity of neutrophils seems to be tightly regulated. Major players in orchestrating this regulation are cyclical steroid sex hormones present during the menstrual cycle and pregnancy. This review describes the role of sex hormones in regulating directly or indirectly the functionality of neutrophils, the role of neutrophils during fertilization and pregnancy and in controlling viral, fungal and bacterial infection. This review also discusses the consequence of overt neutrophil activation in pregnancy pathologies.
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Affiliation(s)
- S Hahn
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
| | - P Hasler
- Department of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland
| | - L Vokalova
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
| | - S V van Breda
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland.,Department of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland
| | - O Lapaire
- Department of Obstetrics, University Women's Hospital Basel, Basel, Switzerland
| | - N G Than
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - I Hoesli
- Department of Obstetrics, University Women's Hospital Basel, Basel, Switzerland
| | - S W Rossi
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
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31
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Wang S, Xie T, Sun S, Wang K, Liu B, Wu X, Ding W. DNase-1 Treatment Exerts Protective Effects in a Rat Model of Intestinal Ischemia-Reperfusion Injury. Sci Rep 2018; 8:17788. [PMID: 30542063 PMCID: PMC6290768 DOI: 10.1038/s41598-018-36198-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 11/01/2018] [Indexed: 12/12/2022] Open
Abstract
A growing number of studies have recently revealed a potential role for neutrophil extracellular traps (NETs) in the development of inflammation, coagulation and cell death. Deleterious consequences of NETs have been identified in ischemia-reperfusion (I/R)-induced organ damage, thrombosis and sepsis. And exogenous DNase-I has been suggested as a therapeutic strategy to attenuate ischemia-reperfusion (I/R) injuries in the kidney, brain and myocardium. Herein, we designed a study to investigate whether NETs contribute to the pathogenesis of intestinal I/R injury and evaluated the therapeutic value of DNase-1 in a rat model of intestinal I/R injury. In this rat model of intestinal I/R injury, we found that extracellular DNA was readily detectable in rat serum after 1 h of ischemia and 2 h of reperfusion. Treatment with DNase-1 significantly reduced the inflammatory response, restored intestinal barrier integrity and increased the expression of tight junction proteins. Our results indicate the existence of NETs in I/R-challenged intestinal tissues and firstly provide more evidence that DNase-1 may be an effective treatment for attenuating intestinal I/R injury.
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Affiliation(s)
- Shikai Wang
- Research Institute of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, Jiangsu Province, P.R. China
| | - Tian Xie
- Research Institute of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, Jiangsu Province, P.R. China
| | - Shilong Sun
- Research Institute of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, Jiangsu Province, P.R. China
| | - Kai Wang
- Research Institute of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, Jiangsu Province, P.R. China
| | - Baochen Liu
- Research Institute of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, Jiangsu Province, P.R. China
| | - Xingjiang Wu
- Research Institute of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, Jiangsu Province, P.R. China
| | - Weiwei Ding
- Research Institute of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing, 210002, Jiangsu Province, P.R. China.
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Maternal total cell-free DNA in preeclampsia and fetal growth restriction: Evidence of differences in maternal response to abnormal implantation. PLoS One 2018; 13:e0200360. [PMID: 30001403 PMCID: PMC6042756 DOI: 10.1371/journal.pone.0200360] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 06/24/2018] [Indexed: 01/24/2023] Open
Abstract
Objectives Preeclampsia and fetal growth restriction are obstetrical syndromes associated with abnormal placental implantation and changes in the activation status of maternal leukocytes. This study is aimed to determine by a simple, rapid fluorescent assay the changes in maternal serum total cell-free DNA (t-cfDNA) concentrations in women with preeclampsia and those with fetal growth restriction (FGR). Study design A cross-sectional study was conducted measuring maternal serum t-cfDNA concentrations. Women were classified into the following groups: 1) patients with preeclampsia (n = 21); 2) FGR-estimated fetal weight below the 10thpercentile (n = 28); and 3) normal pregnancy (n = 39). Serum samples were directly assayed for t-cfDNA using a rapid fluorescent SYBR Gold assay. Elevated maternal serum t-cfDNA concentrations were defined as a cutoff>850ng/ml. Nonparametric statistics were used for analysis. Results Women with preeclampsia had a higher median maternal serum concentration (802 ng/ml, 400–2272 ng/ml) than women with a normal pregnancy (499 ng/ml, 0–1892 ng/ml, p = 0.004) and those with FGR (484 ng/ml, 72–2187 ng/ml, p = 0.012). Moreover, even patients with FGR <5th percentile and abnormal Doppler had a lower median maternal serum t-cfDNA than those with preeclampsia (median 487 ng/ml, 144–1971 ng/ml, p = 0.022). The median concentration of t-cfDNA did not differ between women with a normal pregnancy and those with FGR (p = 0.54), as well as those with fetuses <5th percentile and abnormal Doppler (p = 0.7). Women with preeclampsia had a higher proportion of elevated t-cfDNA than those with a normal pregnancy (p = 0.015) and patients with FGR (p = 0.025). Conclusions Preeclampsia is associated with higher maternal serum t-cfDNA concentration than normal pregnancy or FGR. This observation may reflect an increased systemic activation of the maternal inflammation, rather than placental; this assumption is supported by the fact that we did not observe a significant change in the maternal serum t-cfDNA in patients with placental-mediated FGR.
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33
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Ebrahimi F, Giaglis S, Hahn S, Blum CA, Baumgartner C, Kutz A, van Breda SV, Mueller B, Schuetz P, Christ-Crain M, Hasler P. Markers of neutrophil extracellular traps predict adverse outcome in community-acquired pneumonia: secondary analysis of a randomised controlled trial. Eur Respir J 2018. [PMID: 29519921 DOI: 10.1183/13993003.01389-2017] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Neutrophil extracellular traps (NETs) are a hallmark of the immune response in inflammatory diseases. However, the role of NETs in community-acquired pneumonia (CAP) is unknown. This study aims to characterise the impact of NETs on clinical outcomes in pneumonia.This is a secondary analysis of a randomised controlled, multicentre trial. Patients with CAP were randomly assigned to either 50 mg prednisone or placebo for 7 days. The primary end-point was time to clinical stability; main secondary end-points were length of hospital stay and mortality.In total, 310 patients were included in the analysis. Levels of cell-free nucleosomes as surrogate markers of NETosis were significantly increased at admission and declined over 7 days. NETs were significantly associated with reduced hazards of clinical stability and hospital discharge in multivariate adjusted analyses. Moreover, NETs were associated with a 3.8-fold increased adjusted odds ratio of 30-day mortality. Prednisone treatment modified circulatory NET levels and was associated with beneficial outcome.CAP is accompanied by pronounced NET formation. Patients with elevated serum NET markers were at higher risk for clinical instability, prolonged length of hospital stay and 30-day all-cause mortality. NETs represent a novel marker for outcome and a possible target for adjunct treatments of pneumonia.
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Affiliation(s)
- Fahim Ebrahimi
- Division of Endocrinology, Diabetes and Clinical Nutrition, Dept of Internal Medicine, University of Basel Hospital, Basel, Switzerland
| | - Stavros Giaglis
- Division of Rheumatology, Dept of Internal Medicine, Kantonsspital Aarau, Aarau, Switzerland.,Dept of Biomedicine/University Women's Hospital, University of Basel Hospital, Basel, Switzerland
| | - Sinuhe Hahn
- Dept of Biomedicine/University Women's Hospital, University of Basel Hospital, Basel, Switzerland
| | - Claudine A Blum
- Division of Endocrinology, Diabetes and Clinical Nutrition, Dept of Internal Medicine, University of Basel Hospital, Basel, Switzerland.,University Dept of Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Christine Baumgartner
- Dept of General Internal Medicine, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Alexander Kutz
- University Dept of Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Shane Vontelin van Breda
- Division of Rheumatology, Dept of Internal Medicine, Kantonsspital Aarau, Aarau, Switzerland.,Dept of Biomedicine/University Women's Hospital, University of Basel Hospital, Basel, Switzerland
| | - Beat Mueller
- University Dept of Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Philipp Schuetz
- University Dept of Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Mirjam Christ-Crain
- Division of Endocrinology, Diabetes and Clinical Nutrition, Dept of Internal Medicine, University of Basel Hospital, Basel, Switzerland.,These authors contributed equally to this work
| | - Paul Hasler
- Division of Rheumatology, Dept of Internal Medicine, Kantonsspital Aarau, Aarau, Switzerland .,These authors contributed equally to this work
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34
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Vokalova L, van Breda SV, Ye XL, Huhn EA, Than NG, Hasler P, Lapaire O, Hoesli I, Rossi SW, Hahn S. Excessive Neutrophil Activity in Gestational Diabetes Mellitus: Could It Contribute to the Development of Preeclampsia? Front Endocrinol (Lausanne) 2018; 9:542. [PMID: 30298053 PMCID: PMC6161643 DOI: 10.3389/fendo.2018.00542] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 08/28/2018] [Indexed: 12/19/2022] Open
Abstract
Gestational diabetes mellitus is a transient form of glucose intolerance occurring during pregnancy. Pregnancies affected by gestational diabetes mellitus are at risk for the development of preeclampsia, a severe life threatening condition, associated with significant feto-maternal morbidity and mortality. It is a risk factor for long-term health in women and their offspring. Pregnancy has been shown to be associated with a subliminal degree of neutrophil activation and tightly regulated generation of neutrophil extracellular traps (NETs). This response is excessive in cases with preeclampsia, leading to the presence of large numbers of NETs in affected placentae. We have recently observed that circulatory neutrophils in cases with gestational diabetes mellitus similarly exhibit an excessive pro-NETotic phenotype, and pronounced placental presence, as detected by expression of neutrophil elastase. Furthermore, exogenous neutrophil elastase liberated by degranulating neutrophils was demonstrated to alter trophoblast physiology and glucose metabolism by interfering with key signal transduction components. In this review we examine whether additional evidence exists suggesting that altered neutrophil activity in gestational diabetes mellitus may contribute to the development of preeclampsia.
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Affiliation(s)
- Lenka Vokalova
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
- Institute of Physiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Shane V. van Breda
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
- Department of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland
| | - Xi Lun Ye
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
| | - Evelyn A. Huhn
- Department of Obstetrics, University Women's Hospital Basel, Basel, Switzerland
| | - Nandor G. Than
- Systems Biology of Reproduction Momentum Research Group, Research Centre for Natural Sciences, Institute of Enzymology, Hungarian Academy of Sciences, Budapest, Hungary
| | - Paul Hasler
- Department of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland
| | - Olav Lapaire
- Department of Obstetrics, University Women's Hospital Basel, Basel, Switzerland
| | - Irene Hoesli
- Department of Obstetrics, University Women's Hospital Basel, Basel, Switzerland
| | - Simona W. Rossi
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
- *Correspondence: Simona W. Rossi
| | - Sinuhe Hahn
- Department of Biomedicine, University and University Hospital Basel, Basel, Switzerland
- Sinuhe Hahn
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35
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Ortmann W, Kolaczkowska E. Age is the work of art? Impact of neutrophil and organism age on neutrophil extracellular trap formation. Cell Tissue Res 2017; 371:473-488. [PMID: 29250748 PMCID: PMC5820386 DOI: 10.1007/s00441-017-2751-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/21/2017] [Indexed: 12/15/2022]
Abstract
Neutrophil extracellular traps or NETs are released by highly activated neutrophils in response to infectious agents, sterile inflammation, autoimmune stimuli and cancer. In the cells, the nuclear envelop disintegrates and decondensation of chromatin occurs that depends on peptidylarginine deiminase 4 (PAD4) and neutrophil elastase (NE). Subsequently, proteins from neutrophil granules (e.g., NE, lactoferrin and myeloperoxidase) and the nucleus (histones) bind to decondensed DNA and the whole structure is ejected from the cell. The DNA decorated with potent antimicrobials and proteases can act to contain dissemination of infection and in sterile inflammation NETs were shown to degrade cytokines and chemokines via serine proteases. On the other hand, overproduction of NETs, or their inadequate removal and prolonged presence in vasculature or tissues, can lead to bystander damage or even initiation of diseases. Considering the pros and cons of NET formation, it is of relevance if the stage of neutrophil maturation (immature, mature and senescent cells) affects the capacity to produce NETs as the cells of different age-related phenotypes dominate in given (pathological) conditions. Moreover, the immune system of neonates and elderly individuals is weaker than in adulthood. Is the same pattern followed when it comes to NETs? The overall importance of individual and neutrophil age on the capacity to release NETs is reviewed in detail and the significance of these facts is discussed.
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Affiliation(s)
- Weronika Ortmann
- Department of Evolutionary Immunology, Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30-387, Krakow, Poland
| | - Elzbieta Kolaczkowska
- Department of Evolutionary Immunology, Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30-387, Krakow, Poland.
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36
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Meiri H, Osol G, Cetin I, Gizurarson S, Huppertz B. Personalized Therapy Against Preeclampsia by Replenishing Placental Protein 13 (PP13) Targeted to Patients With Impaired PP13 Molecule or Function. Comput Struct Biotechnol J 2017; 15:433-446. [PMID: 29034064 PMCID: PMC5633742 DOI: 10.1016/j.csbj.2017.09.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/27/2017] [Accepted: 09/12/2017] [Indexed: 12/16/2022] Open
Abstract
Hypertensive disorders affect about one third of all people aged 20 and above, and are treated with anti-hypertensive drugs. Preeclampsia (PE) is one form of such disorders that only develops during pregnancy. It affects ten million pregnant women globally and additionally causes fetal loss and major newborn disabilities. The syndrome's origin is multifactorial, and anti-hypertensive drugs are ineffective in treating it. Biomarkers are helpful for predict its development. Generic drugs, such as low dose aspirin, were proven effective in preventing preterm PE. However, it does not cure the majority of cases and many studies are underway for fighting PE with extended use of additional generic drugs, or through new drug development programs. This review focuses on placental protein 13 (PP13). This protein is only expressed in the placenta. Impaired PP13 DNA structure and/or its reduced mRNA expression leads to lower blood PP13 level that predict a higher risk of developing PE. Two polymorphic PP13 variants have been identified: (1) The promoter PP13 variant with an "A/A" genotype in the -98 position (versus "A/C" or "C/C"). Having the "A/A" genotype is coupled to lower PP13 expression, mainly during placental syncytiotrophoblast differentiation and, if associated with obesity and history of previous preeclampsia, it accurately predicts higher risk for developing the disorder. (2) A thymidine deletion at position 221 causes a frame shift in the open reading frame, and the formation of an early stop codon resulting in the formation of DelT221, a truncated variant of PP13. In pregnant rodents, both short- and long- term replenishment of PP13 causes reversible hypotension and vasodilation of uterine vessels. Long-term exposure is also accompanied by the development of larger placentas and newborns. Also, only w/t PP13 is capable of inducing leukocyte apoptosis, providing maternal immune tolerance to pregnancy. Based on published data, we propose a targeted PP13 therapy to fight PE, and consider the design and conduct of animal studies to explore this hypothesis. Accordingly, a new targeted therapy can be implemented in humans combining prediction and prevention.
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Affiliation(s)
- Hamutal Meiri
- Hy Laboratories, Rehovot, and TeleMarpe, Tel Aviv, Israel
| | - George Osol
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Vermont, Burlington, VT, USA
| | - Irene Cetin
- Department of Obstetrics and Gynecology, University of Milano, Italy
- Department of Mother and Child, Hospital Luigi Sacco, and Center for Fetal Research “Giorgio Pardi”, Milano, Italy
| | - Sveinbjörn Gizurarson
- Faculty of Pharmaceutical Sciences, School of Health Science, University of Iceland, Reykjavik, Iceland
| | - Berthold Huppertz
- Institute of Cell Biology, Histology and Embryology & Biobank Graz, Medical University of Graz, Graz, Austria
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37
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Jeffery U, Ruterbories L, Hanel R, LeVine DN. Cell-Free DNA and DNase Activity in Dogs with Immune-Mediated Hemolytic Anemia. J Vet Intern Med 2017; 31:1441-1450. [PMID: 28833583 PMCID: PMC5598899 DOI: 10.1111/jvim.14808] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/04/2017] [Accepted: 07/19/2017] [Indexed: 12/21/2022] Open
Abstract
Background Immune‐mediated hemolytic anemia (IMHA) in dogs has a high risk of thrombosis and is associated with marked neutrophilia and necrosis. Cell death and release of neutrophil extracellular traps contribute to increased serum concentrations of cell‐free DNA, and in human autoimmune disease reduced DNase activity further increases cell‐free DNA. Free DNA in blood has prothrombotic properties and could contribute to hypercoagulability in IMHA. Hypothesis Cell‐free DNA is elevated and DNase activity reduced in dogs with IMHA compared to healthy dogs. Animals Dogs presenting to two referral hospitals with IMHA (n = 28) and healthy controls (n = 20). Methods Prospective observational study. Blood was collected and death and thrombotic events occurring in the first 14 days after hospitalization recorded. DNA was extracted from plasma with a commercial kit and quantified by PicoGreen fluorescence. DNase activity of serum was measured by radial diffusion assay. Results Cell‐free DNA was significantly higher in cases (median: 45 ng/mL, range: 10–2334 ng/mL) than controls (26 ng/mL, range 1–151 ng/mL, P = 0.0084). DNase activity was not different between cases and controls (P = 0.36). Four cases died and there were five suspected or confirmed thrombotic events. Cell‐free DNA concentration was associated with death (odds ratio for upper quartile versus lower 3 quartiles: 15; 95% confidence interval 1.62–201; P = 0.03) but not thrombosis (P = 0.57). Conclusions and Clinical Importance Cell‐free DNA is elevated in dogs with IMHA and likely reflects increased release rather than impaired degradation of DNA. Cell‐free DNA concentration is potentially associated with death and might be a prognostic indicator, but this requires confirmation in a larger population.
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Affiliation(s)
- U Jeffery
- Department of Veterinary Microbiology and Preventative Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA
| | - L Ruterbories
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
| | - R Hanel
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
| | - D N LeVine
- Department of Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA
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Stoikou M, Grimolizzi F, Giaglis S, Schäfer G, van Breda SV, Hoesli IM, Lapaire O, Huhn EA, Hasler P, Rossi SW, Hahn S. Gestational Diabetes Mellitus Is Associated with Altered Neutrophil Activity. Front Immunol 2017; 8:702. [PMID: 28659928 PMCID: PMC5469883 DOI: 10.3389/fimmu.2017.00702] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 05/31/2017] [Indexed: 01/13/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is a unique form of glucose intolerance, in that it is transient and solely occurs in pregnancy. Pregnancies with GDM are at high risk of developing preeclampsia (PE), a leading cause of fetal and maternal morbidity or mortality. Since PE is associated with excessive activation of circulatory neutrophils and occurrence of neutrophil extracellular traps (NETs) in affected placentae, we examined these features in cases with GDM, as this could be a feature linking the two conditions. Our data indicate that neutrophil activity is indeed altered in GDM, exhibiting pronounced activation and spontaneous generation of NETs by isolated neutrophils in in vitro culture. In this manner, GDM may similarly affect neutrophil behavior and NET formation as witnessed in other forms of diabetes, with the addition of the physiological changes mediated by pregnancy. Since circulatory TNF-α levels are elevated in cases with GDM, a feature also observed in this study, we examined whether this pro-inflammatory cytokine contributed to neutrophil activation. By using infliximab, a clinically utilized TNF-α antagonist, we observed that the pro-NETotic effect of GDM sera was significantly reduced. We also detected pronounced neutrophil infiltrates in placentae from GDM cases. The occurrence of NETs in these tissues is suggested by the extracellular co-localization of citrullinated histones and myeloperoxidase. In addition, elevated neutrophil elastase (NE) mRNA and active enzymatic protein were also detected in such placentae. This latter finding could be important in the context of previous studies in cancer or diabetes model systems, which indicated that NE liberated from infiltrating neutrophils enters surrounding cells, altering cell signaling by the degradation of IRS1. These findings could potentiate the underlying inflammatory response process in GDM and possibly open an avenue for the therapeutic interventions in gestational hyperglycemia.
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Affiliation(s)
- Maria Stoikou
- Department of Biomedicine, University of Basel, University Hospital of Basel, Basel, Switzerland
| | - Franco Grimolizzi
- Department of Biomedicine, University of Basel, University Hospital of Basel, Basel, Switzerland.,Department Clinical Sciences, Polytechnic University Marche, Ancona, Italy
| | - Stavros Giaglis
- Department of Biomedicine, University of Basel, University Hospital of Basel, Basel, Switzerland.,Department of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland
| | - Günther Schäfer
- Department of Biomedicine, University of Basel, University Hospital of Basel, Basel, Switzerland
| | - Shane Vontelin van Breda
- Department of Biomedicine, University of Basel, University Hospital of Basel, Basel, Switzerland
| | | | - Olav Lapaire
- University Women's Hospital, University Hospital of Basel, Basel, Switzerland
| | - Evelyn A Huhn
- University Women's Hospital, University Hospital of Basel, Basel, Switzerland
| | - Paul Hasler
- Department of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland
| | - Simona W Rossi
- Department of Biomedicine, University of Basel, University Hospital of Basel, Basel, Switzerland
| | - Sinuhe Hahn
- Department of Biomedicine, University of Basel, University Hospital of Basel, Basel, Switzerland
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Giaglis S, Stoikou M, Sur Chowdhury C, Schaefer G, Grimolizzi F, Rossi SW, Hoesli IM, Lapaire O, Hasler P, Hahn S. Multimodal Regulation of NET Formation in Pregnancy: Progesterone Antagonizes the Pro-NETotic Effect of Estrogen and G-CSF. Front Immunol 2016; 7:565. [PMID: 27994595 PMCID: PMC5136684 DOI: 10.3389/fimmu.2016.00565] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 11/22/2016] [Indexed: 12/21/2022] Open
Abstract
Human pregnancy is associated with a mild pro-inflammatory state, characterized by circulatory neutrophil activation. In order to explore the mechanism underlying this alteration, we examined NETosis during normal gestation. Our data indicate that neutrophils exhibit a pro-NETotic state, modulated in a multimodal manner during pregnancy. In general, circulatory granulocyte colony-stimulating factor, the levels of which increase during gestation, promotes neutrophil extracellular trap (NET) formation. Early in pregnancy, NETosis is enhanced by chorionic gonadotropin, whereas toward term is stimulated by estrogen. A complex interaction between estrogen and progesterone arises, wherein progesterone restrains the NETotic process. In this state, extensive histone citrullination is evident, yet full NETosis is inhibited. This coincides with the inability of neutrophil elastase to translocate from the cytoplasm to the nucleus and is regulated by progesterone. Our findings provide new insight concerning gestational and hormone-driven pathologies, since neutrophil recruitment, activation, and NET release could be associated with excessive endothelial and placental injury.
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Affiliation(s)
- Stavros Giaglis
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland; Department of Rheumatology, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Maria Stoikou
- Department of Biomedicine, University Hospital Basel , Basel , Switzerland
| | | | - Guenther Schaefer
- Department of Biomedicine, University Hospital Basel , Basel , Switzerland
| | - Franco Grimolizzi
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland; Department Clinical Sciences, Polytechnic University Marche, Ancona, Italy
| | - Simona W Rossi
- Department of Biomedicine, University Hospital Basel , Basel , Switzerland
| | | | - Olav Lapaire
- University Women's Hospital, University Hospital Basel , Basel , Switzerland
| | - Paul Hasler
- Department of Rheumatology, Cantonal Hospital Aarau , Aarau , Switzerland
| | - Sinuhe Hahn
- Department of Biomedicine, University Hospital Basel , Basel , Switzerland
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Wong FC, Sun K, Jiang P, Cheng YK, Chan KA, Leung TY, Chiu RW, Lo YMD. Cell-free DNA in maternal plasma and serum: A comparison of quantity, quality and tissue origin using genomic and epigenomic approaches. Clin Biochem 2016; 49:1379-1386. [DOI: 10.1016/j.clinbiochem.2016.09.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/06/2016] [Accepted: 09/07/2016] [Indexed: 12/15/2022]
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Giaglis S, Hahn S, Hasler P. "The NET Outcome": Are Neutrophil Extracellular Traps of Any Relevance to the Pathophysiology of Autoimmune Disorders in Childhood? Front Pediatr 2016; 4:97. [PMID: 27679792 PMCID: PMC5020135 DOI: 10.3389/fped.2016.00097] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 08/30/2016] [Indexed: 01/08/2023] Open
Abstract
Neutrophil extracellular trap (NET) formation represents a form of cell death distinct from apoptosis or necrosis, by which invading pathogens are simultaneously entangled and potentially eliminated. Increased NET formation is observed in systemic lupus erythematosus (SLE), rheumatoid arthritis, antineutrophil cytoplasmic antibody-associated small vessel vasculitis, antiphospholipid antibody syndrome (APS), and psoriasis. NETs contribute to the pathogenesis of autoimmunity by exposing cryptic autoepitopes, which may facilitate the generation of autoantibodies, induce the production of interferons, and activate the complement cascade. In SLE, augmented disease activity and renal disease are associated with increased NET formation, so that NETs could serve as a marker for the monitoring of disease activity. NETs can additionally cause endothelial cell damage and death and stimulate inflammation in atheromatous plaques, adding to the accelerated atherosclerosis witnessed in autoimmune disease. Since NETs induce production of interferons, assessing the extent of NET formation might facilitate the prediction of IFN-alpha levels and identification of SLE patients with presumably better responses to anti-IFN-alpha therapies or other novel therapeutic concepts, such as N-acetyl-cysteine and inhibitors of DNase 1 and peptidylarginine deiminase 4 (PAD4), which also target NETs. In summary, the study of NETs provides a novel approach to the understanding of autoimmune disease pathogenesis in childhood and opens new vistas in the development of sensitive disease markers and targeted therapies.
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Affiliation(s)
- Stavros Giaglis
- Laboratory of Prenantal Medicine, Department of Biomedicine, University Clinics Basel, Basel, Switzerland; Department of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland
| | - Sinuhe Hahn
- Laboratory of Prenantal Medicine, Department of Biomedicine, University Clinics Basel, Basel, Switzerland; University Women's Hospital, University Clinics Basel, Basel, Switzerland
| | - Paul Hasler
- Department of Rheumatology, Kantonsspital Aarau , Aarau , Switzerland
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