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Kim HI, Park J, Konecna B, Huang W, Riça I, Gallo D, Otterbein LE, Itagaki K, Hauser CJ. Plasma and wound fluids from trauma patients suppress neutrophil extracellular respiratory burst. J Trauma Acute Care Surg 2022; 92:330-338. [PMID: 34789698 PMCID: PMC8792304 DOI: 10.1097/ta.0000000000003461] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Trauma increases susceptibility to secondary bacterial infections. The events suppressing antimicrobial immunity are unclear. Polymorphonuclear neutrophils (PMNs) migrate toward bacteria using chemotaxis, trap them in extracellular neutrophil extracellular traps, and kill them using respiratory burst (RB). We hypothesized that plasma and wound fluids from trauma patients alter PMN function. METHODS Volunteer PMNs were incubated in plasma or wound fluids from trauma patients (days 0 and 1, days 2 and 3), and their functions were compared with PMNs incubated in volunteer plasma. Chemotaxis was assessed in transwells. Luminometry assessed total and intracellular RB responses to receptor-dependent and independent stimulants. Neutrophil extracellular trap formation was assessed using elastase assays. The role of tissue necrosis in creating functionally suppressive systemic PMN environments was assessed using a novel pig model where PMNs were incubated in uninjured pig plasma or plasma from pigs undergoing intraperitoneal instillation of liver slurry. RESULTS Both plasma and wound fluids from trauma patients markedly suppress total PMN RB. Intracellular RB is unchanged, implicating suppression of extracellular RB. Wound fluids are more suppressive than plasma. Biofluids suppressed RB maximally early after injury and their effects decayed with time. Chemotaxis and neutrophil extracellular trap formation were suppressed by biofluids similarly. Lastly, plasma from pigs undergoing abdominal liver slurry instillation suppressed PMN RB, paralleling suppression by human trauma biofluids. CONCLUSION Trauma plasma and wound fluids suppress RB and other key PMNs antimicrobial functions. Circulating suppressive signals can be derived from injured or necrotic tissue at wound sites, suggesting a key mechanism by which tissue injuries can put the host at risk for infection.
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Affiliation(s)
- Hyo In Kim
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA 02215
| | - Jinbong Park
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA 02215
- Deparment of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Barbora Konecna
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia
| | - Wei Huang
- Department of Pharmacology, Harbin Medical University-Daqing, Daqing 163319, China
| | - Ingred Riça
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA
| | - David Gallo
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA 02215
| | - Leo E. Otterbein
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA 02215
| | - Kiyoshi Itagaki
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA 02215
| | - Carl J. Hauser
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA 02215
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Itagaki K, Riça I, Konecna B, Kim HI, Park J, Kaczmarek E, Hauser CJ. Role of Mitochondria-Derived Danger Signals Released After Injury in Systemic Inflammation and Sepsis. Antioxid Redox Signal 2021; 35:1273-1290. [PMID: 33847158 PMCID: PMC8905257 DOI: 10.1089/ars.2021.0052] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Significance: Sepsis is a major public health concern, with high mortality and morbidity, especially among patients undergoing trauma. It is characterized by a systemic inflammatory response syndrome (SIRS) occurring in response to infection. Although classically associated with pathogens, many patients with SIRS do not have infection. The variability of the disease course cannot be fully explained by our current understanding of its pathogenesis. Thus, other factors are likely to play key roles in the development and progression of SIRS/sepsis. Recent Advances: Circulating levels of damage-associated molecular patterns (DAMPs) seem to correlate with SIRS/sepsis morbidity and mortality. Of the known DAMPs, those of mitochondrial (mt) origin have been of particular interest, since their DNA (mtDNA) and formyl peptides (mtFPs) resemble bacterial DNA and peptides, and hence, when released, may be recognized as "danger signals." Critical Issues: mtDAMPs released after tissue injury trigger immune responses similar to those induced by pathogens. Thus, they can result in systemic inflammation and organ damage, similar to that observed in SIRS/sepsis. We will discuss recent findings on the roles of mtDAMPs, particularly regarding the less recognized mtFPs, in the activation of inflammatory responses and development of SIRS/sepsis. Future Directions: There are no established methods to predict the course of SIRS/sepsis, but clinical studies reveal that plasma levels of mtDAMPs may correlate with the outcome of the disease. We propose that non-pathogen-initiated, mtDAMPs-induced SIRS/sepsis events need further studies aimed at early clinical recognition and better treatment of this disease.
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Affiliation(s)
- Kiyoshi Itagaki
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Ingred Riça
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Barbora Konecna
- Institute of Molecular Biomedicine, Comenius University, Bratislava, Slovakia
| | - Hyo In Kim
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Jinbong Park
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Elzbieta Kaczmarek
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA.,Center for Vascular Biology Research, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Carl J Hauser
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
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Zhang Q, Kwon WY, Vlková B, Riça I, Kaczmarek E, Park J, Kim HI, Konecna B, Jung F, Douglas G, Otterbein LE, Hauser CJ, Itagaki K. Direct Airway Instillation of Neutrophils Overcomes Chemotactic Deficits Induced by Injury. Shock 2021; 56:119-124. [PMID: 33181622 PMCID: PMC8513109 DOI: 10.1097/shk.0000000000001691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Trauma induces neutrophil migration toward injury sites, both initiating wound healing and protecting against local bacterial infection. We have previously shown that mitochondrial formyl peptides (mtFPs) released by injured tissues act as chemoattractants by ligating neutrophil (PMN) formyl peptide receptor 1 (FPR1). But this process can also internalize multiple neutrophil chemoattractant receptors and thus might limit neutrophil migration to the lung in response to bacteria. Our objective was to better understand susceptibility to pneumonia after injury and thus find ways to reverse it. METHODS AND RESULTS We modeled the alveolar chemotactic environment in pulmonary infections by incubating Staphylococcus aureus or Escherichia coli with peripheral blood mononuclear cells. Survey of the chemotactic mediators in the resultant conditioned media (CM) showed multiple potent chemoattractants. Pretreating PMN with mtFPs to mimic injury potently reduced net migration toward CM and this net effect was mostly reversed by an FPR1 antagonist. Using an established mouse model of injury-dependent lung infection, we then showed simple instillation of exogenous unstimulated human neutrophils into the airway resulted in bacterial clearance from the lung. CONCLUSION Injury-derived mtFPs suppress global PMN localization into complex chemotactic environments like infected alveoli. Transplantation of naive exogenous human neutrophils into the airway circumvents that pathologic process and prevents development of post-traumatic pneumonia without injury noted to the recipients.
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Affiliation(s)
- Quanzhi Zhang
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
- Harbin Medical University, Daqing, China
| | - Woon Yong Kwon
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
- Seoul National University Hospital, Seoul, South Korea
| | - Barbora Vlková
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
- Comenius University, Bratislava, Slovakia
| | - Ingred Riça
- Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Elzbieta Kaczmarek
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
| | - Jinbong Park
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
| | - Hyo In Kim
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
| | - Barbora Konecna
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
- Comenius University, Bratislava, Slovakia
| | | | | | - Leo E. Otterbein
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
| | - Carl J. Hauser
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
| | - Kiyoshi Itagaki
- Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts
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Itagaki K, Kaczmarek E, Kwon WY, Chen L, Vlková B, Zhang Q, Riça I, Yaffe MB, Campbell Y, Marusich MF, Wang JM, Gong WH, Gao JL, Jung F, Douglas G, Otterbein LE, Hauser CJ. Formyl Peptide Receptor-1 Blockade Prevents Receptor Regulation by Mitochondrial Danger-Associated Molecular Patterns and Preserves Neutrophil Function After Trauma. Crit Care Med 2020; 48:e123-e132. [PMID: 31939811 PMCID: PMC7337247 DOI: 10.1097/ccm.0000000000004094] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Trauma predisposes to systemic sterile inflammation (systemic inflammatory response syndrome) as well as infection, but the mechanisms linking injury to infection are poorly understood. Mitochondrial debris contains formyl peptides. These bind formyl peptide receptor-1, trafficking neutrophils to wounds, initiating systemic inflammatory response syndrome, and wound healing. Bacterial formyl peptides, however, also attract neutrophils via formyl peptide receptor-1. Thus, mitochondrial formyl peptides might suppress neutrophils antimicrobial function. Also, formyl peptide receptor-1 blockade used to mitigate systemic inflammatory response syndrome might predispose to sepsis. We examined how mitochondrial formyl peptides impact neutrophils functions contributing to antimicrobial responses and how formyl peptide receptor-1 antagonists affect those functions. DESIGN Prospective study of human and murine neutrophils and clinical cohort analysis. SETTING University research laboratory and level 1 trauma center. PATIENTS Trauma patients, volunteer controls. ANIMAL SUBJECTS C57Bl/6, formyl peptide receptor-1, and formyl peptide receptor-2 knockout mice. INTERVENTIONS Human and murine neutrophils functions were activated with autologous mitochondrial debris, mitochondrial formyl peptides, or bacterial formyl peptides followed by chemokines or leukotrienes. The experiments were repeated using formyl peptide receptor-1 antagonist cyclosporin H, "designer" human formyl peptide receptor-1 antagonists (POL7178 and POL7200), or anti-formyl peptide receptor-1 antibodies. Mouse injury/lung infection model was used to evaluate effect of formyl peptide receptor-1 inhibition. MEASUREMENTS AND MAIN RESULTS Human neutrophils cytosolic calcium, chemotaxis, reactive oxygen species production, and phagocytosis were studied before and after exposure to mitochondrial debris, mitochondrial formyl peptides, and bacterial formyl peptides. Mitochondrial formyl peptide and bacterial formyl peptides had similar effects on neutrophils. Responses to chemokines and leukotrienes were suppressed by prior exposure to formyl peptides. POL7200 and POL7178 were specific antagonists of human formyl peptide receptor-1 and more effective than cyclosporin H or anti-formyl peptide receptor-1 antibodies. Formyl peptides inhibited mouse neutrophils responses to chemokines only if formyl peptide receptor-1 was present. Formyl peptide receptor-1 blockade did not inhibit neutrophils bacterial phagocytosis or reactive oxygen species production. Cyclosporin H increased bacterial clearance in lungs after injury. CONCLUSIONS Formyl peptides both activate and desensitize neutrophils. Formyl peptide receptor-1 blockade prevents desensitization, potentially both diminishing systemic inflammatory response syndrome and protecting the host against secondary infection after tissue trauma or primary infection.
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Affiliation(s)
| | | | - Woon Yong Kwon
- Beth Israel Deaconess Medical Center/Harvard Medical School
- Seoul National University Hospital, South Korea
| | - Li Chen
- Beth Israel Deaconess Medical Center/Harvard Medical School
- PLA General Hospital, Beijing, China
| | - Barbora Vlková
- Beth Israel Deaconess Medical Center/Harvard Medical School
- Comenius University, Bratislava, Slovakia
| | - Quanzhi Zhang
- Beth Israel Deaconess Medical Center/Harvard Medical School
- Harbin Medical School, Daqing, China
| | | | | | | | | | | | | | - Ji-Liang Gao
- National Institute of Allergy and Infectious Diseases/NIH
| | | | | | | | - Carl J. Hauser
- Beth Israel Deaconess Medical Center/Harvard Medical School
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Monção-Ribeiro LC, Cagido VR, Lima-Murad G, Santana PT, Riva DR, Borojevic R, Zin WA, Cavalcante MCM, Riça I, Brando-Lima AC, Takiya CM, Faffe DS, Coutinho-Silva R. Lipopolysaccharide-induced lung injury: role of P2X7 receptor. Respir Physiol Neurobiol 2011; 179:314-25. [PMID: 21982752 DOI: 10.1016/j.resp.2011.09.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Revised: 09/27/2011] [Accepted: 09/27/2011] [Indexed: 12/20/2022]
Abstract
RATIONALE P2X7 receptors have been involved in inflammatory and immunological responses, and their activation modulates pro-inflammatory cytokines production by LPS-challenged macrophages. OBJECTIVES To determine the role of P2X7R in LPS-induced acute lung injury in mice. METHODS Wild-type (C57BL/6) and P2X7 knockout mice received intratracheal injection of saline or Escherichia coli LPS (60 μg). After 24h, changes in lung mechanics were determined by the end-inflation occlusion method. Bronchoalveolar lavage was performed, and lungs were harvested for measurement of morphometry, fibers content, inflammatory cells and cytokine expression by histochemistry and immunohistochemistry. RESULTS Compared with saline, LPS increased lung mechanical parameters, mast cell, collagen and fibronectin deposition in lung parenchyma, as well as nitric oxide and lactate dehydrogenase release into bronchoalveolar fluid in wild-type, but not in P2X7R knockout mice. Alveolar collapse, lung influx of polymorphonuclear and CD14(+) cells, as well as TGF-β, MMP-2, and IL-1β release were higher in wild-type than knockout LPS-challenged mice, while MMP-9 release where similar between the two genotypes. LPS increased macrophage immunoreactivity in lung tissue in both genotypes, but macrophages were not activated in the P2X7R knockout mice. Furthermore, LPS administration increased P2X7R immunoexpression in lung parenchyma in wild-type mice, and TLR4 in both wild-type and P2X7R knockout mice. CONCLUSION P2X7 receptors are implicated in the pathophysiology of LPS-induced lung injury, modulating lung inflammatory and functional changes.
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Affiliation(s)
- Leonardo C Monção-Ribeiro
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Castro P, Nasser H, Abrahão A, Dos Reis LC, Riça I, Valença SS, Rezende DC, Quintas LEM, Cavalcante MCM, Porto LC, Koatz VLG. Aspirin and indomethacin reduce lung inflammation of mice exposed to cigarette smoke. Biochem Pharmacol 2009; 77:1029-39. [PMID: 19161990 DOI: 10.1016/j.bcp.2008.12.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Revised: 12/09/2008] [Accepted: 12/11/2008] [Indexed: 01/04/2023]
Abstract
Neutrophil accumulation response to cigarette smoke (CS) in humans and animal models is believed to play an important role in pathogenesis of many tobacco-related lung diseases. Here we evaluated the lung anti-inflammatory effect of aspirin and indomethacin in mice exposed to CS. C57BL/6 mice were exposed to four cigarettes per day during 4 days and were treated i.p. with aspirin or indomethacin, administered each day 1h before CS exposure. Twenty four hours after the last exposure, cells and inflammatory mediators were assessed in bronchoalveolar lavage (BAL) fluid and the lungs used for evaluation of lipid peroxidation, p38 mitogen-activated protein kinase (MAPK) phosphorylation and nuclear transcription factor kappaB (NF-kappaB) activation. Exposure to CS resulted in a marked lung neutrophilia. Moreover, the levels of oxidative stress-related lipid peroxidation, prostaglandin E(2) (PGE(2)), interleukin 1beta (IL-1beta), monocyte chemotactic protein 1 (MCP-1), and activated NF-kappaB and p38 MAPK were greatly increased in CS group. Aspirin or indomethacin treatment led to a significant reduction of neutrophil influx, but only aspirin resulted in dramatic decrease of inflammatory mediators. Moreover, both drugs reduced lung p38 MAPK and NF-kappaB activation induced by CS. These results demonstrate that short-term CS exposure has profound airway inflammatory effects counteracted by the anti-inflammatory agents aspirin and indomethacin, probably through COX-dependent and -independent mechanisms.
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Affiliation(s)
- Paulo Castro
- Instituto de Bioquímica Médica, Universidade Federal do Rio de Janeiro, Brazil
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