1
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Li J, Lu H, Yu L, Li H, Chen X, Chen C, Tao E. Case report: Catastrophic event: neonatal gastric perforation and complication of capillary leak syndrome. Front Pediatr 2023; 11:1257491. [PMID: 37800010 PMCID: PMC10547872 DOI: 10.3389/fped.2023.1257491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 09/08/2023] [Indexed: 10/07/2023] Open
Abstract
Neonatal gastric perforation (NGP) is a rare, but life-threatening condition that can lead to serious conditions, such as capillary leak syndrome (CLS). Here, we present the case of a preterm male infant with NGP complicated by CLS after stomach repair. The patient was born at 33 2/7 weeks, weighed 1,770 g, and was diagnosed with respiratory distress syndrome. On the fourth day of life, the patient presented with distention and an unstable cardiovascular system. Routine blood tests revealed a white blood cell count of 2.4 × 109/L. Chest and abdominal radiography revealed a pneumoperitoneum, suggesting a gastrointestinal perforation. The patient was urgently transferred to a tertiary hospital for exploratory laparotomy, where a 2 cm diameter perforation was discovered in the stomach wall and subsequently repaired. Pathological findings indicated the absence of a muscular layer in the stomach wall. The patient unexpectedly developed CLS postoperatively, leading to multiorgan dysfunction and eventual death. The underlying pathological mechanism of NGP-induced CLS may be related to severe chemical peritonitis, sepsis, endothelial glycocalyx dysfunction, enhanced systemic inflammation, and translocation of the gut microbiota, causing endothelial hyperpermeability. Notablely, abdominal surgery itself can be a significant triggering factor for CLS occurrence. Complications of NGP and CLS are extremely dangerous. Investigating the mechanism by which NGP triggers CLS could potentially improve the prognosis. Conservative treatment for pneumoperitoneum secondary to gastric perforation may be a reasonable option, especially when the condition of the patient is unstable.
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Affiliation(s)
- Jie Li
- Department of Neonatology and NICU, Wenling Maternal and Child Health Care Hospital, Wenling, China
| | - Hongping Lu
- Department of Neonatology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical College, Linhai, China
| | - LinJun Yu
- Department of Pediatric Surgery, Taizhou Hospital of Zhejiang Province, Wenzhou Medical College, Linhai, China
| | - Haiting Li
- Department of Neonatology and NICU, Wenling Maternal and Child Health Care Hospital, Wenling, China
| | - Xiyang Chen
- Department of Neonatology and NICU, Wenling Maternal and Child Health Care Hospital, Wenling, China
| | - Caie Chen
- Department of Neonatology and NICU, Wenling Maternal and Child Health Care Hospital, Wenling, China
| | - Enfu Tao
- Department of Neonatology and NICU, Wenling Maternal and Child Health Care Hospital, Wenling, China
- Department of Science and Education, Wenling Maternal and Child Health Care Hospital, Wenling, China
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2
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McGilloway M, Manley S, Aho A, Heeringa KN, Whitacre L, Lou Y, Squires EJ, Pearson W. Dietary Fermentation Product of Aspergillus Oryzae Prevents Increases in Gastrointestinal Permeability ('Leaky Gut') in Horses Undergoing Combined Transport and Exercise. Animals (Basel) 2023; 13:ani13050951. [PMID: 36899808 PMCID: PMC10000214 DOI: 10.3390/ani13050951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/10/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Equine leaky gut syndrome is characterized by gastrointestinal hyperpermeability and may be associated with adverse health effects in horses. The purpose was to evaluate the effects of a prebiotic Aspergillus oryzae product (SUPP) on stress-induced gastrointestinal hyperpermeability. Eight horses received a diet containing SUPP (0.02 g/kg BW) or an unsupplemented diet (CO) (n = 4 per group) for 28 days. On Days 0 and 28, horses were intubated with an indigestible marker of gastrointestinal permeability (iohexol). Half the horses from each feeding group underwent 60 min of transport by trailer immediately followed by a moderate-intensity exercise bout of 30 min (EX), and the remaining horses stayed in stalls as controls (SED). Blood was sampled before iohexol, immediately after trailering, and at 0, 1, 2, 4, and 8 h post-exercise. At the end of the feeding period, horses were washed out for 28 days before being assigned to the opposite feeding group, and the study was replicated. Blood was analyzed for iohexol (HPLC), lipopolysaccharide (ELISA), and serum amyloid A (latex agglutination assay). Data were analyzed using three-way and two-way ANOVA. On Day 0, the combined challenge of trailer transport and exercise significantly increased plasma iohexol in both feeding groups; this increase was not seen in SED horses. On Day 28, EX increased plasma iohexol only in the CO feeding group; this increase was completely prevented by the provision of SUPP. It is concluded that combined transport and exercise induce gastrointestinal hyperpermeability. Dietary SUPP prevents this and therefore may be a useful prophylactic for pathologies associated with gastrointestinal hyperpermeability in horses.
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Affiliation(s)
- Melissa McGilloway
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Shannon Manley
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Alyssa Aho
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Keisha N. Heeringa
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | | | - Yanping Lou
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - E. James Squires
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Wendy Pearson
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
- Correspondence:
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3
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Nepali PR, Burboa PC, Lillo MA, Mujica PE, Iwahashi T, Zhang J, Durán RG, Boric M, Golenhofen N, Kim DD, Alves NG, Thomas AP, Breslin JW, Sánchez FA, Durán WN. Endothelial mechanisms for inactivation of inflammation-induced hyperpermeability. Am J Physiol Heart Circ Physiol 2023; 324:H610-H623. [PMID: 36867447 PMCID: PMC10069978 DOI: 10.1152/ajpheart.00543.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/04/2023]
Abstract
BACKGROUND Microvascular hyperpermeability is a hallmark of inflammation. Many negative effects of hyperpermeability are due to its persistence beyond what is required for preserving organ function. Therefore, we propose that targeted therapeutic approaches focusing on mechanisms that terminate hyperpermeability would avoid the negative effects of prolonged hyperpermeability while retaining its short-term beneficial effects. METHODS We tested the hypothesis that inflammatory agonist signaling leads to hyperpermeability and initiates a delayed cascade of cAMP-dependent pathways that causes inactivation of hyperpermeability. We applied platelet-activating factor (PAF) and vascular endothelial growth factor (VEGF) to induce hyperpermeability. We used an Epac1 agonist to selectively stimulate exchange protein activated by cAMP (Epac1) and promote inactivation of hyperpermeability. RESULTS Stimulation of Epac1 inactivated agonist-induced hyperpermeability in the mouse cremaster muscle and in human microvascular endothelial cells (HMVEC). PAF induced nitric oxide (NO) production and hyperpermeability within one minute, and NO-dependent increased cAMP concentration in about 15-20 minutes in HMVEC. PAF triggered phosphorylation of vasodilator-stimulated phosphoprotein (VASP) in a NO-dependent manner. Epac1 stimulation promoted cytosol-to-membrane eNOS translocation in HMVEC and in myocardial microvascular endothelial (MyEnd) cells from wild-type mice, but not in MyEnd cells from VASP knockout mice. CONCLUSIONS We demonstrate that PAF and VEGF cause hyperpermeability and stimulate the cAMP/Epac1 pathway to inactivate agonist-induced endothelial/microvascular hyperpermeability. Inactivation involves VASP-assisted translocation of eNOS from the cytosol to the endothelial cell membrane. We demonstrate that hyperpermeability is a self-limiting process, whose timed inactivation is an intrinsic property of the microvascular endothelium that maintains vascular homeostasis in response to inflammation.
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Affiliation(s)
- Prerna R Nepali
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States.,Rutgers School of Graduate Studies, Newark, NJ, United States
| | - Pía C Burboa
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Mauricio A Lillo
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Patricio E Mujica
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States.,Department of Natural Sciences, School of Health and Natural Sciences, Mercy College, Dobbs Ferry, NY, United States
| | - Toru Iwahashi
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Jihang Zhang
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Ricardo G Durán
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Mauricio Boric
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Nikola Golenhofen
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - David D Kim
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Natascha G Alves
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Andrew P Thomas
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States.,Rutgers School of Graduate Studies, Newark, NJ, United States
| | - Jerome W Breslin
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Fabiola A Sánchez
- Instituto de Inmunología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Los Rios, Chile
| | - Walter N Durán
- Department of Pharmacology, Physiology and Neuroscience, Rutgers-New Jersey Medical School, Newark, NJ, United States.,Rutgers School of Graduate Studies, Newark, NJ, United States
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4
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Rojas M, Prado Y, Tapia P, Carreño LJ, Cabello-Verrugio C, Simon F. Oxidized High-Density Lipoprotein Induces Endothelial Fibrosis Promoting Hyperpermeability, Hypotension, and Increased Mortality. Antioxidants (Basel) 2022; 11:antiox11122469. [PMID: 36552677 PMCID: PMC9774523 DOI: 10.3390/antiox11122469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
During systemic inflammation, reactive oxygen species (ROS) are generated in the bloodstream, producing large amounts of oxidized HDL (oxHDL). OxHDL loses the vascular protective features of native HDL, acquiring detrimental actions. Systemic inflammation promotes endothelial fibrosis, characterized by adhesion protein downregulation and fibrotic-specific gene upregulation, disrupting endothelial monolayer integrity. Severe systemic inflammatory conditions, as found in critically ill patients in the intensive care unit (ICU), exhibit endothelial hyperpermeability, hypotension, and organ hypoperfusion, promoting organ dysfunction and increased mortality. Because endothelial fibrosis disturbs the endothelium, it is proposed that it is the cellular and molecular origin of endothelial hyperpermeability and the subsequent deleterious consequences. However, whether oxHDL is involved in this process is unknown. The aim of this study was to investigate the fibrotic effect of oxHDL on the endothelium, to elucidate the underlying molecular and cellular mechanism, and to determine its effects on vascular permeability, blood pressure, and mortality. The results showed that oxHDL induces endothelial fibrosis through the LOX-1/NOX-2/ROS/NF-κB pathway, TGF-β secretion, and ALK-5/Smad activation. OxHDL-treated rats showed endothelial hyperpermeability, hypotension, and an enhanced risk of death and mortality, which was prevented using an ALK-5 inhibitor and antioxidant diet consumption. Additionally, the ICU patients showed fibrotic endothelial cells, and the resuscitation fluid volume administered correlated with the plasma oxHDL levels associated with an elevated risk of death and mortality. We conclude that oxHDL generates endothelial fibrosis, impacting blood pressure regulation and survival.
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Affiliation(s)
- Macarena Rojas
- Laboratory of Integrative Physiopathology, Faculty of Life Science, Universidad Andres Bello, Santiago 8370186, Chile
| | - Yolanda Prado
- Laboratory of Integrative Physiopathology, Faculty of Life Science, Universidad Andres Bello, Santiago 8370186, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8331150, Chile
| | - Pablo Tapia
- Unidad de Paciente Crítico Adulto, Hospital Clínico La Florida, La Florida, Santiago 8242238, Chile
| | - Leandro J. Carreño
- Millennium Institute on Immunology and Immunotherapy, Santiago 8331150, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Claudio Cabello-Verrugio
- Millennium Institute on Immunology and Immunotherapy, Santiago 8331150, Chile
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Science, Universidad Andres Bello, Santiago 8370186, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 9170020, Chile
- Correspondence: (C.C.-V.); (F.S.); Tel.: +56-2-2770-3665 (C.C.-V.); +56-2-2661-5653 (F.S.)
| | - Felipe Simon
- Laboratory of Integrative Physiopathology, Faculty of Life Science, Universidad Andres Bello, Santiago 8370186, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8331150, Chile
- Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago 8380453, Chile
- Correspondence: (C.C.-V.); (F.S.); Tel.: +56-2-2770-3665 (C.C.-V.); +56-2-2661-5653 (F.S.)
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5
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Alimoradi H, Thomas A, Lyth DDB, Barzegar-Fallah A, Matikonda SS, Gamble AB, Giles GI. SMA-BmobaSNO: an intelligent photoresponsive nitric oxide releasing polymer for drug nanoencapsulation and targeted delivery. Nanotechnology 2022; 33:195101. [PMID: 35078165 DOI: 10.1088/1361-6528/ac4eb0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
Nitric oxide (NO) is an important biological signalling molecule that acts to vasodilate blood vessels and change the permeability of the blood vessel wall. Due to these cardiovascular actions, co-administering NO with a therapeutic could enhance drug uptake. However current NO donors are not suitable for targeted drug delivery as they systemically release NO. To overcome this limitation we report the development of a smart polymer, SMA-BmobaSNO, designed to release NO in response to a photostimulus. The polymer's NO releasing functionality is an S-nitrosothiol group that, at 10 mg ml-1, is highly resistant to both thermal (t1/216 d) and metabolic (t1/232 h) decomposition, but rapidly brakes down under photoactivation (2700 W m-2, halogen source) to release NO (t1/225 min). Photoresponsive NO release from SMA-BmobaSNO was confirmed in a cardiovascular preparation, where irradiation resulted in a 12-fold decrease in vasorelaxation EC50(from 5.2μM to 420 nM). To demonstrate the polymer's utility for drug delivery we then used SMA-BmobaSNO to fabricate a nanoparticle containing the probe Nile Red (NR). The resulting SMA-BmobaSNO-NR nanoparticle exhibited spherical morphology (180 nm diameter) and sustained NR release (≈20% over 5 d). Targeted delivery was characterised in an abdominal preparation, where photoactivation (450 W m-2) caused localized increases in vasodilation and blood vessel permeability, resulting in a 3-fold increase in NR uptake into photoactivated tissue. Nanoparticles fabricated from SMA-BmobaSNO therefore display highly photoresponsive NO release and can apply the Trojan Horse paradigm by using endogenous NO signalling pathways to smuggle a therapeutic cargo into target tissue.
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Affiliation(s)
- Houman Alimoradi
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Ansa Thomas
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Daniel D B Lyth
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | | | | | - Allan B Gamble
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Gregory I Giles
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
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6
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Weng J, Chen Z, Li J, He Q, Chen D, Yang L, Su H, Huang J, Yu S, Huang Q, Xu Q, Guo X. Advanced glycation end products induce endothelial hyperpermeability via β-catenin phosphorylation and subsequent up-regulation of ADAM10. J Cell Mol Med 2021; 25:7746-7759. [PMID: 34227224 PMCID: PMC8358892 DOI: 10.1111/jcmm.16659] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 12/31/2022] Open
Abstract
Endothelial hyperpermeability is the initial event in the development of diabetic microvascular complications, and advanced glycation end products (AGEs) are suggested to cause much of the endothelial hyperpermeability associated with diabetes mellitus, but the molecular mechanism remains to be characterized. β-catenin reportedly plays dual functions in maintaining normal endothelial permeability by serving both as an adhesive component and a signal transduction component. Here, we found that AGEs induced the phosphorylation of β-catenin at residues Y654 and Y142 and the endothelial hyperpermeability was reversed when the two residues were blocked. In mechanism, phosphorylation of Y654 was blocked by Src inactivation, whereas phosphorylation of Y142 was reduced by a focal adhesion kinase inhibitor. β-catenin Y654 phosphorylation induced by AGEs facilitated the dissociation of vascular endothelial (VE)-cadherin/β-catenin and the impairment of adherens junctions (AJs), whereas β-catenin Y142 phosphorylation favoured the dissociation of β-catenin and α-catenin. Further investigation revealed that β-catenin Y142 phosphorylation was required for AGEs-mediated β-catenin nuclear translocation, and this nuclear-located β-catenin subsequently activated the TCF/LEF pathway. This pathway promotes the transcription of the Wnt target, ADAM10 (a disintegrin and metalloprotease 10), which mediates VE-cadherin shedding and leads to further impairment of AJs. In summary, our study showed the role of β-catenin Y654 and Y142 phosphorylation in AGEs-mediated endothelial hyperpermeability through VE-cadherin/β-catenin/α-catenin dissociation and up-regulation of ADAM10, thereby advancing our understanding of the underlying mechanisms of AGEs-induced microvascular hyperpermeability.
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Affiliation(s)
- Jie Weng
- Department of Pulmonary and Critical Care MedicineZhujiang HospitalSouthern Medical UniversityGuangzhouChina
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Zhenfeng Chen
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Jieyu Li
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Qi He
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Deshu Chen
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Lin Yang
- Guangzhou Special Service Sanatorium Center of the Rocket ForceGuangzhouChina
| | - Haiying Su
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Junlin Huang
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Shengxiang Yu
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Qiaobing Huang
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Qiulin Xu
- Department of Emergency and Critical MedicineGuangdong Provincial People’s HospitalGuangdong Academy of Medical ScienceGuangzhouChina
| | - Xiaohua Guo
- Department of PathophysiologyGuangdong Provincial Key Laboratory of Shock and MicrocirculationSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhouChina
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7
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Zhou G, Chen Z, Li J, Guo X, Qin K, Luo J, Hu J, Huang Q, Su L, Guo X, Xu Q. Role of the Receptor for Advanced Glycation End Products in Heat Stress-Induced Endothelial Hyperpermeability in Acute Lung Injury. Front Physiol 2020; 11:1087. [PMID: 33192536 PMCID: PMC7643755 DOI: 10.3389/fphys.2020.01087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/06/2020] [Indexed: 11/24/2022] Open
Abstract
Objective To study the role of the receptor for advanced glycation end products (RAGE) in endothelial barrier dysfunction induced by heat stress, to further explore the signal pathway by which RAGE contributes to heat-induced endothelia response, and thereby find a novel target for the clinical treatment of ALI (acute lung injury) induced by heatstroke. Methods This study established the animal model of heatstroke using RAGE knockout mice. We observed the role of RAGE in acute lung injury induced by heatstroke in mice by evaluating the leukocytes, neutrophils, and protein concentration in BALF (Bronchoalveolar lavage fluids), lung wet/dry ratio, histopathological changes, and the morphological ultrastructure of lung tissue and arterial blood gas analysis. To further study the mechanism, we established a heat stress model of HUVEC and concentrated on the role of RAGE and its signal pathway in the endothelial barrier dysfunction induced by heat stress, measuring Transendothelial electrical resistance (TEER) and western blot. Results RAGE played a key role in acute lung injury induced by heatstroke in mice. The mechanism C-Jun is located in the promoter region of the RAGE gene. C-Jun increased the RAGE protein expression while HSF1 suppressed RAGE protein expression. The overexpressed RAGE protein then increased HUVEC monolayer permeability by activating ERK and P38 MAPK under heat stress. Conclusion This study indicates the critical role of RAGE in heat stress-induced endothelial hyperpermeability in acute lung injury and suggests that RAGE could be a potential therapeutic target in protecting patients against acute lung injury induced by heatstroke.
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Affiliation(s)
- Gengbiao Zhou
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhenfeng Chen
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jieyu Li
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaotong Guo
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Kaiwen Qin
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jiaqi Luo
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jiaqing Hu
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Qiaobing Huang
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Lei Su
- Department of Intensive Medicine, General Hospital of Southern Theatre Command of PLA, Guangzhou, China
| | - Xiaohua Guo
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Shock and Microcirculation, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Qiulin Xu
- Department of Emergency and Critical Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Science, Guangzhou, China
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8
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Zhou J, Lian H, Xu G, Zhao T. MicroRNA-451 increases vascular permeability and suppresses angiogenesis in pulmonary burn injury in a rat model. ADV CLIN EXP MED 2020; 29:1241-1248. [PMID: 33269809 DOI: 10.17219/acem/126299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Burns are common traumas that cause systemic symptoms by increasing vascular permeability. OBJECTIVES To investigate the role of miRNA-451 and to clarify the underlying mechanism of the burn process. MATERIAL AND METHODS We established a heat-induced third-degree burn with acute lung injury (ALI) model in rats. Hematoxylin and eosin (H&E) staining and in situ hybridization were performed. Overexpressed miRNA-451 in human umbilical vascular endothelial cells (HUVEC) were carried out. The migration and proliferation of HUVEC cells were examined. RESULTS The H&E staining showed that the burn injury caused by heat went through the dermis and damaged deep tissues. Meanwhile, the heat also induced acute lung injury, characterized by inflammatory exudation in the alveoli and significant enlargement of the alveolar septum. In situ hybridization showed that the expression of miRNA-451 increased in the lung endothelial cells. We overexpressed miRNA-451 in human umbilical vascular endothelial cells (HUVEC) and the results showed that miRNA-451 inhibited the migration and proliferation of HUVEC cells, increased HUVEC cell permeability, inhibited cell adhesion, and induced cell apoptosis. Furthermore, the expression of occludin and ZO-1, 2 key protein molecules in forming tight junction between cells, decreased, and the proteins dispersed in the cytoplasm of HUVEC cells. CONCLUSIONS MiRNA-451 was upregulated in the lung endothelial cells of the rat model, and contributed to increase lung endothelial cell permeability. It suppresses angiogenesis of lung endothelial cells, indicating their potential as a target in the treatment of burn injuries.
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Affiliation(s)
- Jie Zhou
- Department of Plastic and Cosmetic Surgery, Second Affiliated Hospital of Soochow University, China
| | - Huibin Lian
- Burns and Plastic Surgery, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Gang Xu
- Department of Plastic and Cosmetic Surgery, Second Affiliated Hospital of Soochow University, China
| | - Tianlan Zhao
- Department of Plastic and Cosmetic Surgery, Second Affiliated Hospital of Soochow University, China
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9
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Hu T, Luo Z, Li K, Wang S, Wu D. Zanthoxylum nitidum extract attenuates BMP-2-induced inflammation and hyperpermeability. Biosci Rep 2020; 40:226607. [PMID: 33030503 PMCID: PMC7584816 DOI: 10.1042/bsr20201098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 09/10/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023] Open
Abstract
Bone morphogenetic protein-2 (BMP-2) is commonly applied in spinal surgery to augment spinal fusion. Nevertheless, its pro-inflammatory potential could induce dangerous side effects such as vascular hyper-permeability, posing the need for manners against this condition. The present study aims to investigate the protective effect of Zanthoxylum nitidum (ZN) on BMP-2-related hyperpermeability and inflammation on the human umbilical vein endothelial cells (HUVECs). The results revealed that, in a concentration-dependent manner, BMP-2 enhanced the production of pro-inflammatory cytokines, including interleukin (IL)-1α, IL-1β, and tumor necrosis factor-α, which were, however, suppressed by ZN. ZN inhibited BMP-2-induced inflammatory response by suppressing the phosphorylation of NF-κBp65 and IκB, and the abnormal nuclear translocation of p65. Moreover, the inhibited expression intercellular tight junction protein VE-cadherin and Occludin caused by BMP-2 was blocked by ZN. The hyper-permeability of HUVECs induced by BMP-2, as expressed as the higher fluorescent intensity of dextran, was also reversed by ZN. Overall, these findings demonstrated that ZN antagonized BMP-2-induced inflammation and hyperpermeability. It could be a therapeutic candidate for the treatment of BMP-2-induced side effects during spinal fusion.
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Affiliation(s)
- Tao Hu
- Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine, China
| | - Zhiwen Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, China
| | - Kai Li
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, China
| | - Shanjin Wang
- Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine, China
| | - Desheng Wu
- Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine, China
- Correspondence: Desheng Wu ()
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10
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Li L, Rongfang Z, Junhai Z, Changqin C, Jing Y. Integrin ανβ3 modulates lipopolysaccharide-induced hyperpermeability in cardiac microvascular endothelial cells. Biosci Biotechnol Biochem 2020; 84:1614-1620. [PMID: 32351169 DOI: 10.1080/09168451.2020.1759399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Previous studies suggest an association of cardiac microvascular endothelial cells (CMECs) hyperpermeability with sepsis-related cardiac injury. Our results showed that CMECs permeability was dependent upon concentration and time of lipopolysaccharides (LPS) stimulation. Integrin ανβ3 expression decreased after LPS stimulation. Pretreatment with anti-integrin ανβ3 antibody enhanced LPS-induced hyperpermeability. Upregulation of integrin ανβ3 decreased LPS-induced hyperpermeability. F-actin remodeling was enhanced after LPS stimulation and was inhibited by up-regulation of integrin ανβ3. Inhibition of Src or Rac1 reduced CMECs permeability after LPS stimulation, but there were no differences in the phosphorylation of Src and Rac1 when over-expressing or blocking integrin β3. After pretreatment with Src or Rac1 inhibitor, no significant difference was found in the expression of integrin ανβ3 in LPS-induced CMECs. These finding suggested that integrin ανβ3 overexpression decreased LPS-stimulated CMECS permeability by inhibition of cytoskeletal remodeling, but the mechanism might not be mediated via Src/Rac1 signaling.
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Affiliation(s)
- Li Li
- Department of Intensive Care Medicine, Zhejiang Hospital , Hangzhou, China
| | - Zhou Rongfang
- Department of Intensive Care Medicine, Zhejiang Hospital , Hangzhou, China
| | - Zhen Junhai
- Department of Intensive Care Medicine, Zhejiang Hospital , Hangzhou, China
| | - Chen Changqin
- Department of Intensive Care Medicine, Zhejiang Hospital , Hangzhou, China
| | - Yan Jing
- Department of Intensive Care Medicine, Zhejiang Hospital , Hangzhou, China
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11
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Wang HM, Huang P, Li Q, Yan LL, Sun K, Yan L, Pan CS, Wei XH, Liu YY, Hu BH, Wang CS, Fan JY, Han JY. Post-treatment With Qing-Ying-Tang, a Compound Chinese Medicine Relives Lipopolysaccharide-Induced Cerebral Microcirculation Disturbance in Mice. Front Physiol 2019; 10:1320. [PMID: 31708795 PMCID: PMC6823551 DOI: 10.3389/fphys.2019.01320] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 10/01/2019] [Indexed: 12/31/2022] Open
Abstract
Objective: Lipopolysaccharide (LPS) causes microvascular dysfunction, which is a key episode in the pathogenesis of endotoxemia. This work aimed to investigate the effect of Qing-Ying-Tang (QYT), a compound Chinese medicine in cerebral microcirculation disturbance and brain damage induced by LPS. Methods: Male C57/BL6 mice were continuously transfused with LPS (7.5 mg/kg/h) through the left femoral vein for 2 h. QYT (14.3 g/kg) was given orally 2 h after LPS administration. The dynamics of cerebral microcirculation were evaluated by intravital microscopy. Brain tissue edema was assessed by brain water content and Evans Blue leakage. Cytokines in plasma and brain were evaluated by flow cytometry. Confocal microscopy and Western blot were applied to detect the expression of junction and adhesion proteins, and signaling proteins concerned in mouse brain tissue. Results: Post-treatment with QYT significantly ameliorated LPS-induced leukocyte adhesion to microvascular wall and albumin leakage from cerebral venules and brain tissue edema, attenuated the increase of MCP-1, MIP-1α, IL-1α, IL-6, and VCAM-1 in brain tissue and the activation of NF-κB and expression of MMP-9 in brain. QYT ameliorated the downregulation of claudin-5, occludin, JAM-1, ZO-1, collagen IV as well as the expression and phosphorylation of VE-cadherin in mouse brain. Conclusions: This study demonstrated that QYT protected cerebral microvascular barrier from disruption after LPS by acting on the transcellular pathway mediated by caveolae and paracellular pathway mediated by junction proteins. This result suggests QYT as a potential strategy to deal with endotoxemia.
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Affiliation(s)
- Hao-Min Wang
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Ping Huang
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Quan Li
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Lu-Lu Yan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Kai Sun
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Li Yan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Chun-Shui Pan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Xiao-Hong Wei
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Yu-Ying Liu
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Bai-He Hu
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Chuan-She Wang
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Jing-Yu Fan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
| | - Jing-Yan Han
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China.,Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,Key Laboratory of Stasis and Phlegm, State Administration of Traditional Chinese Medicine of the People's Republic of China, Beijing, China.,State Key Laboratory of Core Technology in Innovative Chinese Medicine, Beijing, China.,Beijing Microvascular Institute of Integration of Chinese and Western Medicine, Beijing, China
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12
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Abstract
Dengue fever is one of those unique diseases where host immune responses largely determine the pathogenesis and its severity. Earlier studies have established the fact that dengue virus (DENV) infection causes haemorrhagic fever and shock syndrome, but it is not directly responsible for exhibiting these clinical symptoms. It is noteworthy that clinically, vascular leakage syndrome does not develop for several days after infection despite a robust innate immune response that elicits the production of proinflammatory and proangiogenic cytokines. The onset of hyperpermeability in severe cases of dengue disease takes place around the time of defervescence and after clearance of viraemia. Extracellular vesicles are known to carry biological information (mRNA, miRNA, transcription factors) from their cells of origin and have emerged as a significant vehicle for horizontal transfer of stress signals. In dengue virus infection, the relevance of exosomes can be instrumental since the majority of the immune responses in severe dengue involve heavy secretion and circulation of pro-inflammatory cytokines and chemokines. Here, we present an updated review which will address the unique and puzzling features of hyperpermeability associated with DENV infection with a special focus on the role of secreted extracellular vesicles.
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Affiliation(s)
- Ritu Mishra
- Laboratory of Virology, National Institute of Immunology, New Delhi, India
| | - Sneh Lata
- Laboratory of Virology, National Institute of Immunology, New Delhi, India
| | - Amjad Ali
- Jamia Millia Islamia, Okhla, New Delhi, India
| | - Akhil C. Banerjea
- Laboratory of Virology, National Institute of Immunology, New Delhi, India
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13
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Tian Y, He Y, Zhang L, Zhang J, Xu L, Ma Y, Xu X, Wei L. Role of vasodilator-stimulated phosphoprotein in human cytomegalovirus-induced hyperpermeability of human endothelial cells. Exp Ther Med 2018; 16:1295-1303. [PMID: 30112061 PMCID: PMC6090474 DOI: 10.3892/etm.2018.6332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 05/11/2018] [Indexed: 11/18/2022] Open
Abstract
Atherosclerosis (AS) is a common chronic vascular disease and epidemiological evidence demonstrates that infection is closely associated with the occurrence of AS, including infection by human cytomegalovirus (HCMV) and Chlamydophila pneumoniae. The aim of the present study was to investigate the effect of HCMV AD169 infection on the barrier function of human umbilical vein endothelial cells (HUVECs) and to understand the role of vasodilator-stimulated phosphoprotein (VASP) during this process. In cultured HUVEC-CRL-1730 cells, knockdown of VASP expression with small interfering (si)RNA-VASP resulted in impaired cellular barrier function. Furthermore, knockdown of Ras-related C3 botulinum toxin substrate 1 (Rac1) using siRNA-Rac1 could induce downregulation of VASP expression in HUVEC-CRL-1730 cells. Additionally, following the infection of the cells by HCMV, cellular morphological alterations could be observed under an inverted microscope, the mRNA and protein levels of Rac1 and VASP were transiently reduced, and what appeared to be a time-dependent impairment of the barrier function was observed. Finally, transfection of siRNA-VASP or siRNA-Rac1 into HCMV-infected HUVEC-CRL-1730 cells resulted in increased impairment of the cellular barrier function. Taken together, these data demonstrated that HCMV infection could induce impairment of the barrier function in monolayer HUVEC-CRL-1730 cells via interference with Rac1/VASP expression.
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Affiliation(s)
- Yihao Tian
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yanqi He
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Ling Zhang
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Jie Zhang
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Liu Xu
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yanbin Ma
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xiaolong Xu
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Lei Wei
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei 430071, P.R. China
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14
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Tabung FK, Birmann BM, Epstein MM, Martínez-Maza O, Breen EC, Wu K, Giovannucci EL. Influence of Dietary Patterns on Plasma Soluble CD14, a Surrogate Marker of Gut Barrier Dysfunction. Curr Dev Nutr 2017; 1:e001396. [PMID: 29595830 PMCID: PMC5867900 DOI: 10.3945/cdn.117.001396] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/31/2017] [Accepted: 10/17/2017] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Specific foods and nutrients, including alcohol, may contribute to gut barrier dysfunction. However, to our knowledge, the influence of whole diets is currently unknown. OBJECTIVE We aimed to cross-sectionally investigate associations of dietary patterns with plasma soluble CD14 (sCD14), which is released by macrophages on stimulation with endotoxin and has been used as a marker of gut hyperpermeability. METHODS We used food-frequency questionnaire data collected from 689 women in the Nurses' Health Study and 509 men in the Health Professionals Follow-Up Study. Our principal component analysis identified 2 dietary patterns: "Western" (higher intakes of red meat, processed meat, desserts, and refined grains) and "prudent" (higher intakes of fruits, vegetables, fish, and whole grains). In multivariable-adjusted logistic regression analyses, we estimated ORs and 95% CIs for high (equal to or greater than the median compared with less than the median) sCD14 concentrations in quintiles of each dietary pattern. Using logistic regression, we also investigated the joint association of the Western dietary pattern and alcohol intake or C-reactive protein (CRP) with sCD14 concentrations. RESULTS Western dietary pattern scores were positively associated with sCD14 concentrations (OR: 1.86; 95% CI: 1.24, 2.79; P-trend = 0.0005; comparing extreme quintiles). Analyses of joint associations suggested that the strongest associations with higher sCD14 concentrations were for persons with both high Western pattern scores and high alcohol intake compared with participants with low scores for both (OR: 2.96; 95% CI: 1.61, 5.45) or for participants with both high Western pattern scores and high CRP values compared with those with low scores for both (OR: 4.11; 95% CI: 2.57, 6.58). The prudent pattern was not associated with sCD14 concentrations. CONCLUSIONS Higher consumption of the Western dietary pattern is associated with a marker of macrophage activation and gut hyperpermeability, especially when coupled with high alcohol intake and heightened systemic inflammation. Our findings need confirmation in studies with additional markers of gut barrier dysfunction.
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Affiliation(s)
- Fred K Tabung
- Departments of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Departments of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Brenda M Birmann
- Departments of Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Mara M Epstein
- Department of Medicine and the Meyers Primary Care Institute, University of Massachusetts Medical School, Worcester, MA
| | - Otoniel Martínez-Maza
- Departments of Obstetrics and Gynecology, Immunology, and Molecular Genetics
- Departments of Microbiology, Immunology, and Molecular Genetics
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA
| | - Elizabeth C Breen
- Department of Psychiatry and Biobehavioral Sciences, Cousins Center for Psychoneuroimmunology, David Geffen School of Medicine
| | - Kana Wu
- Departments of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Edward L Giovannucci
- Departments of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Departments of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
- Departments of Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
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15
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Yang N, Liu YY, Pan CS, Sun K, Wei XH, Mao XW, Lin F, Li XJ, Fan JY, Han JY. Pretreatment with andrographolide pills(®) attenuates lipopolysaccharide-induced pulmonary microcirculatory disturbance and acute lung injury in rats. Microcirculation 2015; 21:703-16. [PMID: 24919947 DOI: 10.1111/micc.12152] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Accepted: 06/05/2014] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The purpose of this study was to explore the protective effect of AP on LPS-induced PMD and ALI. METHODS Male SD rats were continuously infused with LPS (5 mg/kg/h) for one hour to induce PMD and ALI. AP was administrated orally one hour before LPS exposure. Arterial blood pressure and HR were monitored. Blood gas analysis, histological observation, cytokines in plasma, leukocyte recruitment, pulmonary oxidative stress, microvessel permeability, edema, and related proteins were evaluated six hours after LPS challenge. RESULTS Rats receiving LPS exhibited significant alterations, including hypotension, tachycardia, increase in cytokines, neutrophil adhesion and infiltration, oxidative stress, and microvessel hyperpermeability, resulting in pulmonary injury and dysfunction. AP (0.18 g/kg or 1.8 g/kg) improved rat survival rate, and significantly attenuated all aforementioned insults, and inhibited LPS-induced increase in adhesion molecules, up-regulation of Cav-1 and Src kinase and NADPH oxidase subunits (p47(phox) and p67(phox) ) membrane translocation in lung tissue, and preserved JAM-1 and claudin-5. CONCLUSIONS The results demonstrated the protective effect of AP on LPS-induced PMD and ALI, suggesting the potential of AP as a prophylactic strategy for LPS-induced ALI.
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Affiliation(s)
- Ning Yang
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China; Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China; Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China; Key Laboratory of Microcirculation, State Administration of Traditional Chinese Medicine of China, Beijing, China
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16
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Lin B, Liu Y, Li T, Zeng K, Cai S, Zeng Z, Lin C, Chen Z, Gao Y. Ulinastatin mediates protection against vascular hyperpermeability following hemorrhagic shock. Int J Clin Exp Pathol 2015; 8:7685-7693. [PMID: 26339335 PMCID: PMC4555663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 06/25/2015] [Indexed: 06/05/2023]
Abstract
OBJECT Recent studies have suggested that intrinsic apoptotic signaling cascade is involved in endothelial barrier dysfunction following hemorrhagic shock (HS), which results in vascular hyperpermeability. Our previous study demonstrated that ulinastatin (UTI) inhibits oxidant-induced endothelial hyperpermeability and apoptotic signaling. In present study, we hypothesized that UTI would improve HS-induced vascular hyperpermeability by regulating the intrinsic apoptotic signaling cascade. METHODS Hemorrhagic shock was induced in rats by withdrawing blood to reduce the mean arterial pressure to 40-45 mmHg for 60 min, followed by reperfusion. Mesenteric postcapillary venules were examined for changes in hyperpermeability by intravital microscopy. In vitro, Rat lung microvascular endothelial cells (RLMVECs) were exposed in hemorrhagic shock serum for 120 min, followed by transendothelial electrical resistance (TER) estimation. Mitochondrial release of cytochrome c and caspase-3 activation was estimated in vivo. In vitro, ratio of cell apoptosis was evaluated by Annexin-V/PI double stain assay; mitochondrial membrane potential (∆Ψm) was determined with JC-1; intracellular ATP content was assayed by a commercial kit; reactive oxygen species (ROS) was measured by DCFH-DA; adherens junction protein β-catenin was detected by immunofluorescense staining. RESULTS In vivo, UTI attenuated HS-induced vascular hyperpermeability versus the HS group (P < 0.05); In vitro, UTI attenuated shock serum induced RLMEC monolayer hyperpermeability (P < 0.05). In vivo, UTI inhibited HS-induced cytochrome c release and caspase-3 activation (P < 0.05). In vitro, shock serum induced cell apoptosis, low ATP level, ∆Ψm depolarization, ROS increase were improved by UTI pre-treatment (P < 0.05). UTI improved shock serum induced disruption of endothelial cell adherens junction. CONCLUSIONS UTI inhibits vascular hyperpermeability following HS. UTI regulates oxidative stress and intrinsic apoptotic signaling following HS.
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Affiliation(s)
- Bo Lin
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005, China
| | - Youtan Liu
- Department of Anesthesiology, Shenzhen Hospital, Soutern Medical UniversityShenzhen 518110, China
| | - Tao Li
- Department of Critical Care Medicine, The First People’s Hospital of Chenzhou, Institute of Translation MedicineChenzhou 423000, China
| | - Kai Zeng
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005, China
| | - Shumin Cai
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical UniversityGuangzhou 510515, China
| | - Zhenhua Zeng
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical UniversityGuangzhou 510515, China
| | - Caizhu Lin
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005, China
| | - Zhongqing Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical UniversityGuangzhou 510515, China
| | - Youguang Gao
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005, China
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17
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Nomura Y, Takahashi H, Tan X, Obata R, Yanagi Y. Widespread choroidal thickening and abnormal midperipheral fundus autofluorescence characterize exudative age-related macular degeneration with choroidal vascular hyperpermeability. Clin Ophthalmol 2015; 9:297-304. [PMID: 25709392 PMCID: PMC4334323 DOI: 10.2147/opth.s78210] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Purpose To investigate the clinical findings that characterize exudative age-related macular degeneration (AMD) with choroidal vascular hyperpermeability (CVH). Design Retrospective comparative study. Participants Forty-eight consecutive patients attending the outpatient clinic of Tokyo University Hospital between May 2013 and July 2013. Methods The presence or absence of CVH was determined with indocyanine green angiography performed at the latest visit. When CVH was observed, the eye was categorized as CVH(+) AMD, otherwise it was categorized as CVH(-) AMD. Using high-penetration optical coherence tomography, we measured choroidal thickness at the fovea and at four midperipheral areas (mean choroidal thickness at points on 6- and 9-papilla diameter circles superior, inferior, temporal, and nasal to the fovea). Ultrawide field retinal imaging was used to investigate abnormalities in midperipheral fundus autofluorescence (FAF). Choroidal thickness and the proportion of FAF abnormalities were compared between the CVH(+) AMD and CVH(−) AMD eyes and between eyes with polypoidal choroidal vasculopathy and typical AMD. Multiple regression analysis was used to control for treatment history and other characteristics. Results CVH was observed in 17 cases. Choroidal thickness was higher in the CVH(+) AMD eyes than in the CVH(−) AMD eyes at the fovea (325 μm versus 229 μm, respectively; P=0.0010, t-test), superior point (277 μm versus 215 μm, respectively; P=0.0021, t-test), inferior point (225 μm versus 161 μm, respectively; P=0.0002, t-test), and nasal point (202 μm versus 165 μm, respectively; P=0.042, t-test). The significance was maintained after controlling for possible confounders. The choroid was thicker at the fovea and at the inferior point in polypoidal choroidal vasculopathy than in typical AMD. The rate of midperipheral FAF abnormality was significantly higher in the CVH(+) AMD eyes than in the CVH(−) AMD eyes (82% versus 48%, respectively; P=0.031). Conclusion AMD with CVH is associated with widespread choroidal thickening and peripheral FAF abnormalities.
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Affiliation(s)
- Yoko Nomura
- Department of Ophthalmology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hidenori Takahashi
- Department of Ophthalmology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Xue Tan
- Department of Ophthalmology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryo Obata
- Department of Ophthalmology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yasuo Yanagi
- Department of Ophthalmology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Zhang Y, Sun K, Liu YY, Zhang YP, Hu BH, Chang X, Yan L, Pan CS, Li Q, Fan JY, He K, Mao XW, Tu L, Wang CS, Han JY. Ginsenoside Rb1 ameliorates lipopolysaccharide-induced albumin leakage from rat mesenteric venules by intervening in both trans- and paracellular pathway. Am J Physiol Gastrointest Liver Physiol 2014; 306:G289-300. [PMID: 24356882 DOI: 10.1152/ajpgi.00168.2013] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [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: 01/31/2023]
Abstract
Lipopolysaccharide (LPS) is one of the common pathogens that causes mesentery hyperpermeability- and intestinal edema-related diseases. This study evaluated whether ginsenoside Rb1 (Rb1), an ingredient of a Chinese medicine Panax ginseng, has beneficial effects on mesentery microvascular hyperpermeability induced by LPS and the underlying mechanisms. Male Wistar rats were continuously infused with LPS (5 mg · kg(-1) · h(-1)) via the left jugular vein for 90 min. In some rats, Rb1 (5 mg · kg(-1) · h(-1)) was administrated through the left jugular vein 30 min after LPS infusion. The dynamics of fluorescein isothiocynate-labeled albumin leakage from mesentery venules was assessed by intravital microscopy. Intestinal tissue edema was evaluated by hematoxylin and eosin staining. The number of caveolae in endothelial cells of microvessels was examined by electron microscopy. Confocal microscopy and Western blotting were applied to detect caveolin-1 (Cav-1) expression and phosphorylation, junction-related proteins, and concerning signaling proteins in intestinal tissues and human umbilical vein endothelial cells. LPS infusion evoked an increased albumin leakage from mesentery venules that was significantly ameliorated by Rb1 posttreatment. Mortality and intestinal edema around microvessels were also reduced by Rb1. Rb1 decreased caveolae number in endothelial cells of microvessels. Cav-1 expression and phosphorylation, VE-Cadherin phosphorylation, ZO-1 degradation, nuclear factor-κB (NF-κB) activation, and Src kinase phosphorylation were inhibited by Rb1. Rb1 ameliorated microvascular hyperpermeability after the onset of endotoxemia and improved intestinal edema through inhibiting caveolae formation and junction disruption, which was correlated to suppression of NF-κB and Src activation.
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Affiliation(s)
- Yu Zhang
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China
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Abstract
—Pulmonary edema, a major manifestation of left ventricular heart failure, renal insufficiency, shock, diffuse alveolar damage and lung hypersensitivity states, is a significant medical problem worldwide and can be life-threatening. The proinflammatory cytokine tumor necrosis factor (TNF) has been shown to contribute to the pathogenesis and development of pulmonary edema. However, some recent studies have demonstrated surprisingly that TNF can also promote alveolar fluid reabsorption in vivo and in vitro. This protective effect of the cytokine is mediated by the lectin-like domain of the cytokine, which is spatially distinct from the TNF receptor binding sites. The TIP peptide, a synthetic mimic of the lectin-like domain of TNF, can significantly increase alveolar fluid clearance and improve lung compliance in pulmonary edema models. In this review, we will discuss the dual role of TNF in pulmonary edema.
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Affiliation(s)
- Guang Yang
- Vascular Biology Center & Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta, GA, 30912, USA
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