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Pourquoi A, Miller MR, Koch SR, Boyle K, Surratt V, Nguyen H, Panja S, Cartailler JP, Shrestha S, Stark RJ. DIFFERENTIAL SIGNALING EFFECTS OF ESCHERICHIA COLI AND STAPHYLOCOCCUS AUREUS IN HUMAN WHOLE BLOOD INDICATE DISTINCT REGULATION OF THE NRF2 PATHWAY. Shock 2024; 61:557-563. [PMID: 38604133 PMCID: PMC11018340 DOI: 10.1097/shk.0000000000002305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
ABSTRACT Escherichia coli and Staphylococcus aureus are two of the most common bacterial species responsible for sepsis. While it is observed that they have disparate clinical phenotypes, the signaling differences elicited by each bacteria that drive this variance remain unclear. Therefore, we used human whole blood exposed to heat-killed E. coli or S. aureus and measured the transcriptomic signatures. Relative to unstimulated control blood, heat-killed bacteria exposure led to significant dysregulation (upregulated and downregulated) of >5,000 genes for each experimental condition, with a slight increase in gene alterations by S. aureus. While there was significant overlap regarding proinflammatory pathways, Gene Ontology overrepresentation analysis of the most altered genes suggested biological processes like macrophage differentiation and ubiquinone biosynthesis were more unique to heat-killed S. aureus, compared with heat-killed E. coli exposure. Using Ingenuity Pathway Analysis, it was demonstrated that nuclear factor erythroid 2-related factor 2 signaling, a main transcription factor in antioxidant responses, was predominately upregulated in S. aureus exposed blood relative to E. coli. Furthermore, the use of pharmacologics that preferentially targeted the nuclear factor erythroid 2-related factor 2 pathway led to differential cytokine profiles depending on the type of bacterial exposure. These findings reveal significant inflammatory dysregulation between E. coli and S. aureus and provide insight into the targeting of unique pathways to curb bacteria-specific responses.
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Affiliation(s)
| | | | - Stephen R Koch
- Vanderbilt University Medical Center, Nashville, Tennessee
| | | | | | - Hong Nguyen
- Vanderbilt University Medical Center, Nashville, Tennessee
| | - Sourav Panja
- Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Shristi Shrestha
- Vanderbilt University, Creative Data Solutions, Nashville, Tennessee
| | - Ryan J Stark
- Vanderbilt University Medical Center, Nashville, Tennessee
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da Silva PR, Apolinário NDM, da Silva SÂS, Araruna MEC, Costa TB, e Silva YMSDM, da Silva TG, de Moura RO, dos Santos VL. Anti-Inflammatory Activity of N'-(3-(1H-indol-3-yl)benzylidene)-2-cyanoacetohydrazide Derivative via sGC-NO/Cytokine Pathway. Pharmaceuticals (Basel) 2023; 16:1415. [PMID: 37895886 PMCID: PMC10610422 DOI: 10.3390/ph16101415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
The N-acylhydrazone function has been reported as a pharmacophore group of molecules with diverse pharmacological activities, including anti-inflammatory effects. Therefore, this study was designed to evaluate the anti-inflammatory potential of the compound N'-(3-(1H-indol-3-yl)benzylidene)-2-cyanoacetohydrazide (JR19) in vivo. The study started with the carrageenan-induced peritonitis model, followed by an investigation of leukocyte migration using the subcutaneous air pouch test and an assessment of the antinociceptive profile using formalin-induced pain. A preliminary molecular docking study focusing on the crystallographic structures of NFκB, iNOS, and sGC was performed to determine the likely mechanism of action. The computational study revealed satisfactory interaction energies with the selected targets, and the same peritonitis model was used to validate the involvement of the nitric oxide pathway and cytokine expression in the peritoneal exudate of mice pretreated with L-NAME or methylene blue. In the peritonitis assay, JR19 (10 and 20 mg/kg) reduced leukocyte migration by 59% and 52%, respectively, compared to the vehicle group, with the 10 mg/kg dose used in subsequent assays. In the subcutaneous air pouch assay, the reduction in cell migration was 66%, and the response to intraplantar formalin was reduced by 39%, particularly during the inflammatory phase, suggesting that the compound lacks central analgesic activity. In addition, a reversal of the anti-inflammatory effect was observed in mice pretreated with L-NAME or methylene blue, indicating the involvement of iNOS and sGC in the anti-inflammatory response of JR19. The compound effectively and significantly decreased the levels of IL-6, TNF-α, IL-17, and IFN-γ, and this effect was reversed in animals pretreated with L-NAME, supporting a NO-dependent anti-inflammatory effect. In contrast, pretreatment with methylene blue only reversed the reduction in TNF-α levels. Therefore, these results demonstrate the pharmacological potential of the novel N-acylhydrazone derivative, which acts through the nitric oxide pathway and cytokine signaling, making it a strong candidate as an anti-inflammatory and immunomodulatory agent.
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Affiliation(s)
- Pablo Rayff da Silva
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); (N.d.M.A.); (S.Â.S.d.S.); (M.E.C.A.); (T.B.C.); (Y.M.S.d.M.e.S.); (V.L.d.S.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
| | - Nadjaele de Melo Apolinário
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); (N.d.M.A.); (S.Â.S.d.S.); (M.E.C.A.); (T.B.C.); (Y.M.S.d.M.e.S.); (V.L.d.S.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
| | - Simone Ângela Soares da Silva
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); (N.d.M.A.); (S.Â.S.d.S.); (M.E.C.A.); (T.B.C.); (Y.M.S.d.M.e.S.); (V.L.d.S.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
| | - Maria Elaine Cristina Araruna
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); (N.d.M.A.); (S.Â.S.d.S.); (M.E.C.A.); (T.B.C.); (Y.M.S.d.M.e.S.); (V.L.d.S.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
| | - Thássia Borges Costa
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); (N.d.M.A.); (S.Â.S.d.S.); (M.E.C.A.); (T.B.C.); (Y.M.S.d.M.e.S.); (V.L.d.S.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
| | - Yvnni M. S. de Medeiros e Silva
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); (N.d.M.A.); (S.Â.S.d.S.); (M.E.C.A.); (T.B.C.); (Y.M.S.d.M.e.S.); (V.L.d.S.)
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
| | - Teresinha Gonçalves da Silva
- Departamento de Antibióticos, Centro de Biociências, Universidade Federal de Pernambuco, Recife 50740-520, PE, Brazil;
| | - Ricardo Olímpio de Moura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); (N.d.M.A.); (S.Â.S.d.S.); (M.E.C.A.); (T.B.C.); (Y.M.S.d.M.e.S.); (V.L.d.S.)
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
| | - Vanda Lucia dos Santos
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); (N.d.M.A.); (S.Â.S.d.S.); (M.E.C.A.); (T.B.C.); (Y.M.S.d.M.e.S.); (V.L.d.S.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil
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Adetunji JA, Fasae KD, Awe AI, Paimo OK, Adegoke AM, Akintunde JK, Sekhoacha MP. The protective roles of citrus flavonoids, naringenin, and naringin on endothelial cell dysfunction in diseases. Heliyon 2023; 9:e17166. [PMID: 37484296 PMCID: PMC10361329 DOI: 10.1016/j.heliyon.2023.e17166] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 07/25/2023] Open
Abstract
The endothelial cells (ECs) make up the inner lining of blood vessels, acting as a barrier separating the blood and the tissues in several organs. ECs maintain endothelium integrity by controlling the constriction and relaxation of the vasculature, blood fluidity, adhesion, and migration. These actions of ECs are efficiently coordinated via an intricate signaling network connecting receptors, and a wide range of cellular macromolecules. ECs are naturally quiescent i.e.; they are not stimulated and do not proliferate. Upon infection or disease, ECs become activated, and this alteration is pivotal in the pathogenesis of a spectrum of human neurological, cardiovascular, diabetic, cancerous, and viral diseases. Considering the central position that ECs play in disease pathogenesis, therapeutic options have been targeted at improving ECs integrity, assembly, functioning, and health. The dietary intake of flavonoids present in citrus fruits has been associated with a reduced risk of endothelium dysfunction. Naringenin (NGN) and Naringin (NAR), major flavonoids in grapefruit, tomatoes, and oranges possess anti-inflammatory, antioxidant properties, and cell survival potentials, which improve the health of the vascular endothelium. In this review, we provide a comprehensive summary and present the advances in understanding of the mechanisms through which NGN and NAR modulate the biomarkers of vascular dysfunction and protect the endothelium against unresolved inflammation, oxidative stress, atherosclerosis, and angiogenesis. We also provide perspectives and suggest further studies that will help assess the efficacy of citrus flavonoids in the therapeutics of human vascular diseases.
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Affiliation(s)
- Joy A. Adetunji
- Nutritional and Industrial Biochemistry Unit, Department of Biochemistry, College of Medicine, University of Ibadan, Nigeria
| | - Kehinde D. Fasae
- Department of Biomedical and Diagnostic Sciences, University of Tennessee, Knoxville, USA
| | - Ayobami I. Awe
- Department of Biology, The Catholic University of America, Washington DC, USA
| | - Oluwatomiwa K. Paimo
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Ayodeji M. Adegoke
- Department of Pharmacology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
- Cancer Research and Molecular Biology Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, 200005, Nigeria
| | - Jacob K. Akintunde
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Mamello P. Sekhoacha
- Department of Pharmacology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
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Jiang W, Shi DH, He YJ, Chen CY. [Effect of procalcitonin on lipopolysaccharide-induced expression of nucleotide-binding oligomerization domain-like receptor protein 3 and caspase-1 in human umbilical vein endothelial cells]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2023; 25:521-526. [PMID: 37272180 DOI: 10.7499/j.issn.1008-8830.2301031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVES To study the effect of procalcitonin (PCT) on lipopolysaccharide (LPS)-induced expression of the pyroptosis-related proteins nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) and caspase-1 in human umbilical vein endothelial cells (HUVECs). METHODS HUVECs were induced by LPS to establish a model of sepsis-induced inflammatory endothelial cell injury. The experiment was divided into two parts. In the first part, HUVECs were randomly divided into four groups: normal control, LPS (1 μg/mL), PCT (10 ng/mL), and LPS+PCT (n=3 each). In the second part, HUVECs were randomly grouped: normal control, LPS, and LPS+PCT of different concentrations (0.1, 1, 10, and 100 ng/mL) (n=3 each). Quantitative real-time PCR and Western blot were used to measure the mRNA and protein expression levels of NLRP3 and caspase-1 in each group. RESULTS In the first experiment: compared with the normal control group, the PCT, LPS, and LPS+PCT groups had significantly upregulated mRNA and protein expression levels of NLRP3 and caspase-1 (P<0.05); compared with the LPS group, the LPS+PCT group had significantly downregulated mRNA and protein expression levels of NLRP3 and caspase-1 (P<0.05). In the second experiment: compared with those in the LPS group, the mRNA and protein expression levels of NLRP3 and caspase-1 in the LPS+PCT of different concentrations groups were significantly downregulated in a concentration-dependent manner (P<0.05). CONCLUSIONS LPS can promote the expression of the pyroptosis-related proteins NLRP3 and caspase-1 in HUVECs, while PCT can inhibit the LPS-induced expression of the pyroptosis-related proteins NLRP3 and caspase-1 in HUVECs in a concentration-dependent manner.
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Affiliation(s)
- Wen Jiang
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Ding-Hua Shi
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yan-Juan He
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Chun-Yuan Chen
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha 410013, China
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5
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Atreya MR, Cvijanovich NZ, Fitzgerald JC, Weiss SL, Bigham MT, Jain PN, Schwarz AJ, Lutfi R, Nowak J, Allen GL, Thomas NJ, Grunwell JR, Baines T, Quasney M, Haileselassie B, Lindsell CJ, Alder MN, Wong HR. Integrated PERSEVERE and endothelial biomarker risk model predicts death and persistent MODS in pediatric septic shock: a secondary analysis of a prospective observational study. Crit Care 2022; 26:210. [PMID: 35818064 PMCID: PMC9275255 DOI: 10.1186/s13054-022-04070-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 06/21/2022] [Indexed: 11/12/2022] Open
Abstract
Background Multiple organ dysfunction syndrome (MODS) is a critical driver of sepsis morbidity and mortality in children. Early identification of those at risk of death and persistent organ dysfunctions is necessary to enrich patients for future trials of sepsis therapeutics. Here, we sought to integrate endothelial and PERSEVERE biomarkers to estimate the composite risk of death or organ dysfunctions on day 7 of septic shock. Methods We measured endothelial dysfunction markers from day 1 serum among those with existing PERSEVERE data. TreeNet® classification model was derived incorporating 22 clinical and biological variables to estimate risk. Based on relative variable importance, a simplified 6-biomarker model was developed thereafter. Results Among 502 patients, 49 patients died before day 7 and 124 patients had persistence of MODS on day 7 of septic shock. Area under the receiver operator characteristic curve (AUROC) for the newly derived PERSEVEREnce model to predict death or day 7 MODS was 0.93 (0.91–0.95) with a summary AUROC of 0.80 (0.76–0.84) upon tenfold cross-validation. The simplified model, based on IL-8, HSP70, ICAM-1, Angpt2/Tie2, Angpt2/Angpt1, and Thrombomodulin, performed similarly. Interaction between variables—ICAM-1 with IL-8 and Thrombomodulin with Angpt2/Angpt1—contributed to the models’ predictive capabilities. Model performance varied when estimating risk of individual organ dysfunctions with AUROCS ranging from 0.91 to 0.97 and 0.68 to 0.89 in training and test sets, respectively. Conclusions The newly derived PERSEVEREnce biomarker model reliably estimates risk of death or persistent organ dysfunctions on day 7 of septic shock. If validated, this tool can be used for prognostic enrichment in future pediatric trials of sepsis therapeutics. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13054-022-04070-5.
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Aguilar Briseño JA, Ramos Pereira L, van der Laan M, Pauzuolis M, ter Ellen BM, Upasani V, Moser J, de Souza Ferreira LC, Smit JM, Rodenhuis-Zybert IA. TLR2 axis on peripheral blood mononuclear cells regulates inflammatory responses to non-infectious immature dengue virus particles. PLoS Pathog 2022; 18:e1010499. [PMID: 36240261 PMCID: PMC9605289 DOI: 10.1371/journal.ppat.1010499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 10/26/2022] [Accepted: 10/04/2022] [Indexed: 11/13/2022] Open
Abstract
Severe dengue virus (DENV) infection is characterized by exacerbated inflammatory responses that lead to endothelial dysfunction and plasma leakage. We have recently demonstrated that Toll-like receptor 2 (TLR2) on blood monocytes senses DENV infection leading to endothelial activation. Here, we report that non-infectious immature DENV particles, which are released in large numbers by DENV-infected cells, drive endothelial activation via the TLR2 axis. We show that fully immature DENV particles induce a rapid, within 6 hours post-infection, inflammatory response in PBMCs. Furthermore, pharmacological blocking of TLR2/TLR6/CD14 and/or NF-kB prior to exposure of PBMCs to immature DENV reduces the initial production of inter alia TNF-α and IL-1β by monocytes and prevents endothelial activation. However, prolonged TLR2 block induces TNF-α production and leads to exacerbated endothelial activation, indicating that TLR2-mediated responses play an important role not only in the initiation but also the resolution of inflammation. Altogether, these data indicate that the maturation status of the virus has the potential to influence the kinetics and extent of inflammatory responses during DENV infection.
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Affiliation(s)
- José Alberto Aguilar Briseño
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Lennon Ramos Pereira
- Vaccine Development Laboratory, Microbiology Department, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marleen van der Laan
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Mindaugas Pauzuolis
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Bram M. ter Ellen
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Vinit Upasani
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Immunology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, Phnom Penh, Cambodia
| | - Jill Moser
- Departments of Critical Care, Pathology & Medical Biology, Medical Biology section, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Luís Carlos de Souza Ferreira
- Vaccine Development Laboratory, Microbiology Department, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Jolanda M. Smit
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Izabela A. Rodenhuis-Zybert
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- * E-mail:
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Luxen M, van Meurs M, Molema G. Unlocking the Untapped Potential of Endothelial Kinase and Phosphatase Involvement in Sepsis for Drug Treatment Design. Front Immunol 2022; 13:867625. [PMID: 35634305 PMCID: PMC9136877 DOI: 10.3389/fimmu.2022.867625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/28/2022] [Indexed: 11/29/2022] Open
Abstract
Sepsis is a devastating clinical condition that can lead to multiple organ failure and death. Despite advancements in our understanding of molecular mechanisms underlying sepsis and sepsis-associated multiple organ failure, no effective therapeutic treatment to directly counteract it has yet been established. The endothelium is considered to play an important role in sepsis. This review highlights a number of signal transduction pathways involved in endothelial inflammatory activation and dysregulated endothelial barrier function in response to sepsis conditions. Within these pathways – NF-κB, Rac1/RhoA GTPases, AP-1, APC/S1P, Angpt/Tie2, and VEGF/VEGFR2 – we focus on the role of kinases and phosphatases as potential druggable targets for therapeutic intervention. Animal studies and clinical trials that have been conducted for this purpose are discussed, highlighting reasons why they might not have resulted in the expected outcomes, and which lessons can be learned from this. Lastly, opportunities and challenges that sepsis and sepsis-associated multiple organ failure research are currently facing are presented, including recommendations on improved experimental design to increase the translational power of preclinical research to the clinic.
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Affiliation(s)
- Matthijs Luxen
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- *Correspondence: Matthijs Luxen,
| | - Matijs van Meurs
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Grietje Molema
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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Brown JL, Townsend E, Short RD, Williams C, Woodall C, Nile CJ, Ramage G. Assessing the inflammatory response to in vitro polymicrobial wound biofilms in a skin epidermis model. NPJ Biofilms Microbiomes 2022; 8:19. [PMID: 35393409 PMCID: PMC8991182 DOI: 10.1038/s41522-022-00286-z] [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: 08/18/2021] [Accepted: 02/24/2022] [Indexed: 01/13/2023] Open
Abstract
Wounds can commonly become infected with polymicrobial biofilms containing bacterial and fungal microorganisms. Microbial colonization of the wound can interfere with sufficient healing and repair, leading to high rates of chronicity in certain individuals, which can have a huge socioeconomic burden worldwide. One route for alleviating biofilm formation in chronic wounds is sufficient treatment of the infected area with topical wound washes and ointments. Thus, the primary aim here was to create a complex in vitro biofilm model containing a range of microorganisms commonly isolated from the infected wound milieu. These polymicrobial biofilms were treated with three conventional anti-biofilm wound washes, chlorhexidine (CHX), povidone-iodine (PVP-I), and hydrogen peroxide (H2O2), and efficacy against the microorganisms assessed using live/dead qPCR. All treatments reduced the viability of the biofilms, although H2O2 was found to be the most effective treatment modality. These biofilms were then co-cultured with 3D skin epidermis to assess the inflammatory profile within the tissue. A detailed transcriptional and proteomic profile of the epidermis was gathered following biofilm stimulation. At the transcriptional level, all treatments reduced the expression of inflammatory markers back to baseline (untreated tissue controls). Olink technology revealed a unique proteomic response in the tissue following stimulation with untreated and CHX-treated biofilms. This highlights treatment choice for clinicians could be dictated by how the tissue responds to such biofilm treatment, and not merely how effective the treatment is in killing the biofilm.
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Affiliation(s)
- Jason L Brown
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK. .,Glasgow Biofilm Research Network, 378 Sauchiehall Street, Glasgow, G2 3JZ, UK.
| | - Eleanor Townsend
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK.,Glasgow Biofilm Research Network, 378 Sauchiehall Street, Glasgow, G2 3JZ, UK.,School of Life Sciences, Gibbet Hill Campus, The University of Warwick, Coventry, CV4 7AL, UK
| | - Robert D Short
- Department of Chemistry and Material Science Institute, University of Lancaster, Lancaster, LA1 4YB, UK
| | - Craig Williams
- Glasgow Biofilm Research Network, 378 Sauchiehall Street, Glasgow, G2 3JZ, UK.,Microbiology Department, Lancaster Royal Infirmary, University of Lancaster, Lancaster, LA1 4YW, UK
| | - Chris Woodall
- Glasgow Biofilm Research Network, 378 Sauchiehall Street, Glasgow, G2 3JZ, UK.,Blutest Laboratories, 5 Robroyston Oval, Nova Business Park, Glasgow, G33 1AP, UK
| | - Christopher J Nile
- Glasgow Biofilm Research Network, 378 Sauchiehall Street, Glasgow, G2 3JZ, UK.,School of Dental Sciences, Newcastle University, Newcastle, NE2 4BW, UK
| | - Gordon Ramage
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK. .,Glasgow Biofilm Research Network, 378 Sauchiehall Street, Glasgow, G2 3JZ, UK.
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da Silva PR, do Espírito Santo RF, Melo CDO, Pachú Cavalcante FE, Costa TB, Barbosa YV, e Silva YMSDM, de Sousa NF, Villarreal CF, de Moura RO, dos Santos VL. The Compound (E)-2-Cyano- N,3-diphenylacrylamide (JMPR-01): A Potential Drug for Treatment of Inflammatory Diseases. Pharmaceutics 2022; 14:188. [PMID: 35057082 PMCID: PMC8777680 DOI: 10.3390/pharmaceutics14010188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 02/04/2023] Open
Abstract
The compound (E)-2-cyano-N,3-diphenylacrylamide (JMPR-01) was structurally developed using bioisosteric modifications of a hybrid prototype as formed from fragments of indomethacin and paracetamol. Initially, in vitro assays were performed to determine cell viability (in macrophage cultures), and its ability to modulate the synthesis of nitrite and cytokines (IL-1β and TNFα) in non-cytotoxic concentrations. In vivo, anti-inflammatory activity was explored using the CFA-induced paw edema and zymosan-induced peritonitis models. To investigate possible molecular targets, molecular docking was performed with the following crystallographic structures: LT-A4-H, PDE4B, COX-2, 5-LOX, and iNOS. As results, we observed a significant reduction in the production of nitrite and IL-1β at all concentrations used, and also for TNFα with JMPR-01 at 50 and 25 μM. The anti-edematogenic activity of JMPR-01 (100 mg/kg) was significant, reducing edema at 2-6 h, similar to the dexamethasone control. In induced peritonitis, JMPR-01 reduced leukocyte migration by 61.8, 68.5, and 90.5% at respective doses of 5, 10, and 50 mg/kg. In silico, JMPR-01 presented satisfactory coupling; mainly with LT-A4-H, PDE4B, and iNOS. These preliminary results demonstrate the strong potential of JMPR-01 to become a drug for the treatment of inflammatory diseases.
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Affiliation(s)
- Pablo Rayff da Silva
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); camillamello-@hotmail.com (C.d.O.M.); (R.O.d.M.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil;
| | - Renan Fernandes do Espírito Santo
- Instituto Gonçalo Moniz, Fundação Osvaldo Cruz, Salvador 40296-710, BA, Brazil; (R.F.d.E.S.); (C.F.V.)
- Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-290, BA, Brazil
| | - Camila de Oliveira Melo
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); camillamello-@hotmail.com (C.d.O.M.); (R.O.d.M.)
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil;
| | - Fábio Emanuel Pachú Cavalcante
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
| | - Thássia Borges Costa
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
| | - Yasmim Vilarim Barbosa
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
| | - Yvnni M. S. de Medeiros e Silva
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil;
| | - Natália Ferreira de Sousa
- Programa de Pós Graduação em Produtos Naturais, Sintéticos e Bioativos, Universidade Federal da Paraiba, João Pessoa 58051-900, PB, Brazil;
| | - Cristiane Flora Villarreal
- Instituto Gonçalo Moniz, Fundação Osvaldo Cruz, Salvador 40296-710, BA, Brazil; (R.F.d.E.S.); (C.F.V.)
- Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-290, BA, Brazil
| | - Ricardo Olímpio de Moura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); camillamello-@hotmail.com (C.d.O.M.); (R.O.d.M.)
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil;
| | - Vanda Lucia dos Santos
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); camillamello-@hotmail.com (C.d.O.M.); (R.O.d.M.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
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10
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Clere-Jehl R, Merdji H, Kassem M, Macquin C, De Cauwer A, Sibony A, Kurihara K, Minniti L, Abou Fayçal C, Bahram S, Meziani F, Helms J, Georgel P. A Translational Investigation of IFN-α and STAT1 Signaling in Endothelial Cells during Septic Shock Provides Therapeutic Perspectives. Am J Respir Cell Mol Biol 2021; 65:167-175. [PMID: 33798037 DOI: 10.1165/rcmb.2020-0401oc] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Septic shock and disseminated intravascular coagulation (DIC) are known to be characterized by an endothelial cell dysfunction. The molecular mechanisms underlying this relationship are, however, poorly understood. In this work, we aimed to investigate human circulating IFN-α in patients with septic shock-induced DIC and tested the potential role of endothelial Stat1 (signal transducer and activator of transcription 1) as a therapeutic target in a mouse model of sepsis. For this, circulating type I, type II, and type III IFNs and procoagulant microvesicles were quantified in a prospective cohort of patients with septic shock. Next, we used a septic shock model induced by cecal ligation and puncture in wild-type mice, in Ifnar1 (type I IFN receptor subunit 1)-knockout mice, and in Stat1 conditional knockout mice. In human samples, we observed higher concentrations of circulating IFN-α and IFN-α1 in patients with DIC compared with patients without DIC, whereas concentrations of IFN-β, IFN-γ, IFN-λ1, IFN-λ2, and IFN-λ3 were not different. IFN-α concentration was positively correlated with CD105 microvesicle concentrations, reflecting endothelial injury. In Ifnar1-/- mice, cecal ligation and puncture did not induce septic shock and was characterized by lesser endothelial cell injury, with lower aortic inflammatory cytokine expression, endothelial inflammatory-related gene expression, and fibrinolysis. In mice in which Stat1 was specifically ablated in endothelial cells, a marked protection against sepsis was also observed, suggesting the relevance of an endothelium-targeted strategy. Our work highlights the key roles of type I IFNs as pathogenic players in septic shock-induced DIC and the potential pertinence of endothelial STAT1 as a therapeutic target.
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Affiliation(s)
- Raphaël Clere-Jehl
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil.,ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
| | - Hamid Merdji
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil.,Institut National de la Santé et de la Recherche Médicale, UMR_S1260, Nanomédecine Régenerative, Faculté de Pharmacie, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Mohamad Kassem
- Institut National de la Santé et de la Recherche Médicale, UMR_S1260, Nanomédecine Régenerative, Faculté de Pharmacie, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Cécile Macquin
- ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
| | - Aurore De Cauwer
- ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
| | - Alicia Sibony
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil.,ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
| | - Kei Kurihara
- Institut National de la Santé et de la Recherche Médicale, UMR_S1260, Nanomédecine Régenerative, Faculté de Pharmacie, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Laetitia Minniti
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil.,ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
| | - Chérine Abou Fayçal
- ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
| | - Seiamak Bahram
- ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
| | - Ferhat Meziani
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil.,Institut National de la Santé et de la Recherche Médicale, UMR_S1260, Nanomédecine Régenerative, Faculté de Pharmacie, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Julie Helms
- Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil.,ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
| | - Philippe Georgel
- ImmunoRhumatologie Moléculaire, Institut National de la Santé et de la Recherche Médicale, UMR_S1109, Centre de Recherche d'Immunologie et d'Hematologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS)
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11
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Valand N, Girija UV. Candida Pathogenicity and Interplay with the Immune System. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1313:241-272. [PMID: 34661898 DOI: 10.1007/978-3-030-67452-6_11] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Candida species are opportunistic fungal pathogens that are part of the normal skin and mucosal microflora. Overgrowth of Candida can cause infections such as thrush or life-threatening invasive candidiasis in immunocompromised patients. Though Candida albicans is highly prevalent, several non-albicans species are also isolated from nosocomial infections. Candida sp. are over presented in the gut of people with Crohn's disease and certain types of neurological disorders, with hyphal form and biofilms being the most virulent states. In addition, Candida uses several secreted and cell surface molecules such as pH related antigen 1, High affinity glucose transporter, Phosphoglycerate mutase 1 and lipases to establish pathogenicity. A strong innate immune response is elicited against Candida via dendritic cells, neutrophils and macrophages. All three complement pathways are also activated. Production of proinflammatory cytokines IL-10 and IL-12 signal differentiation of CD4+ cells into Th1 and Th2 cells, whereas IL-6, IL-17 and IL-23 induce Th17 cells. Importance of T-lymphocytes is reflected in depleted T-cell count patients being more prone to Candidiasis. Anti- Candida antibodies also play a role against candidiasis using various mechanisms such as targeting virulent enzymes and exhibiting direct candidacidal activity. However, the significance of antibody response during infection remains controversial. Furthermore, some of the Candida strains have evolved molecular strategies to evade the sophisticated host attack by proteolysis of components of immune system and interfering with immune signalling pathways. Emergence of several non-albicans species that are resistant to current antifungal agents makes treatment more difficult. Therefore, deeper insight into interactions between Candida and the host immune system is required for discovery of novel therapeutic options.
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Affiliation(s)
- Nisha Valand
- Leicester School of Allied Health and Life sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester, UK
| | - Umakhanth Venkatraman Girija
- Leicester School of Allied Health and Life sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester, UK.
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12
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Aguilar-Briseño JA, Moser J, Rodenhuis-Zybert IA. Understanding immunopathology of severe dengue: lessons learnt from sepsis. Curr Opin Virol 2020; 43:41-49. [PMID: 32896675 DOI: 10.1016/j.coviro.2020.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 07/09/2020] [Indexed: 12/13/2022]
Abstract
Endothelial dysfunction leading to vascular permeability and plasma leakage are characteristic features of severe dengue and sepsis. However, the mechanisms underlying these immune-pathologies remain unclear. The risk of severe dengue and sepsis development depend on patient-related and pathogen-related factors. Additionally, comorbidities increase the risk of severe disease and their incidence hampers correct diagnosis and treatments. To date, there is no efficient therapy to combat severe dengue and sepsis. Here, we discuss the differences and similarities between the pathogenesis of severe dengue and that of bacterial sepsis. We identify gaps in knowledge that need to be better understood in order to move towards the rational development and/or usage of therapeutic strategies to ameliorate severe dengue disease.
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Affiliation(s)
- José A Aguilar-Briseño
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, 9700 RB Groningen, The Netherlands
| | - Jill Moser
- Departments of Critical Care, Pathology & Medical Biology, Medical Biology Section, University of Groningen and University Medical Center Groningen, 9700 RB Groningen, The Netherlands
| | - Izabela A Rodenhuis-Zybert
- Department of Medical Microbiology and Infection Prevention, University of Groningen and University Medical Center Groningen, 9700 RB Groningen, The Netherlands.
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13
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Tu F, Wang X, Zhang X, Ha T, Wang Y, Fan M, Yang K, Gill PS, Ozment TR, Dai Y, Liu L, Williams DL, Li C. Novel Role of Endothelial Derived Exosomal HSPA12B in Regulating Macrophage Inflammatory Responses in Polymicrobial Sepsis. Front Immunol 2020; 11:825. [PMID: 32457753 PMCID: PMC7221167 DOI: 10.3389/fimmu.2020.00825] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 04/14/2020] [Indexed: 12/20/2022] Open
Abstract
Endothelial cell dysfunction contributes to sepsis induced initiate immune response and the infiltration of immune cells into organs, resulting in organ injury. Heat shock protein A12B (HSPA12B) is predominantly expressed in endothelial cells. The present study investigated whether endothelial HSPA12B could regulate macrophage pro-inflammatory response during sepsis. Wild type (WT) and endothelial cell-specific HSPA12B deficient (HSPA12B-/-) mice were subjected to CLP sepsis. Mortality and cardiac function were monitored. Higher mortality, worsened cardiac dysfunction, and greater infiltrated macrophages in the myocardium and spleen were observed in HSPA12B-/- septic mice compared with the WT septic mice. The serum levels of TNF-α and IL-1β were higher and the levels of IL-10 were lower in HSPA12B-/- septic mice than in WT septic mice. Importantly, endothelial exosomes contain HSPA12B which can be uptaken by macrophages. Interestingly, endothelial exosomal HSPA12B significantly increases IL-10 levels and decreases TNF-α and IL-1β production in LPS-stimulated macrophages. Mechanistic studies show that endothelial exosomal HSPA12B downregulates NF-κB activation and nuclear translocation in LPS stimulated macrophages. These data suggest that endothelial HSPA12B plays a novel role in the regulation of macrophage pro-inflammatory response via exosomes during sepsis and that sepsis induced cardiomyopathy and mortality are associated with endothelial cell deficiency of HSPA12B.
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Affiliation(s)
- Fei Tu
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Xiaohui Wang
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Xia Zhang
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Tuanzhu Ha
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Yana Wang
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Min Fan
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Kun Yang
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - P Spencer Gill
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Tammy R Ozment
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Yuan Dai
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Li Liu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - David L Williams
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Chuanfu Li
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,The Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
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