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Ali FEM, Ahmed SF, Eltrawy AH, Yousef RS, Ali HS, Mahmoud AR, Abd-Elhamid TH. Pretreatment with Coenzyme Q10 Combined with Aescin Protects against Sepsis-Induced Acute Lung Injury. Cells Tissues Organs 2021; 210:195-217. [PMID: 34280918 DOI: 10.1159/000516192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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] [Received: 09/16/2020] [Accepted: 03/26/2021] [Indexed: 11/19/2022] Open
Abstract
Sepsis-associated acute lung injury (ALI) is a critical condition characterized by severe inflammatory response and mitochondrial dysfunction. Coenzyme Q10 (CoQ10) and aescin (AES) are well-known for their anti-inflammatory activities. However, their effects on lipopolysaccharide (LPS)-induced lung injury have not been explored yet. Here, we asked whether combined pretreatment with CoQ10 and AES synergistically prevents LPS-induced lung injury. Fifty male rats were randomized into 5 groups: (1) control; (2) LPS-treated, rats received a single i.p. injection of LPS (8 mg/kg); (3) CoQ10-pretreated, (4) AES-pretreated, or (5) combined-pretreated; animals received CoQ10 (100 mg/kg), AES (5 mg/kg), or both orally for 7 days before LPS injection. Combined CoQ10 and AES pretreatment significantly reduced lung injury markers; 52.42% reduction in serum C-reactive protein (CRP), 53.69% in alkaline phosphatase (ALKP) and 60.26% in lactate dehydrogenase (LDH) activities versus 44.58, 37.38, and 48.6% in CoQ10 and 33.81, 34.43, and 39.29% in AES-pretreated groups, respectively. Meanwhile, combination therapy significantly reduced interleukin (IL)-1β and tumor necrosis factor (TNF)-α expressions compared to monotherapy (p < 0.05). Additionally, combination therapy prevented LPS-induced histological and mitochondrial abnormalities greater than separate drugs. Western blotting indicated that combination therapy significantly suppressed nucleotide-binding oligomerization domain (NOD)-like receptors-3 (NLRP-3) inflammasome compared to separate drugs (p < 0.05). Further, combination therapy significantly decreased the expression of signaling cascades, p38 mitogen-activated protein kinases (p38 MAPK), nuclear factor kappa B (NF-κB)-p65, and extracellular-regulated kinases 1/2 (ERK1/2) versus monotherapy (p < 0.05). Interestingly, combined pretreatment significantly downregulated high mobility group box-1 (HMGB1) by 72.93%, and toll-like receptor 4 (TLR4) by -0.93-fold versus 61.92%, -0.83-fold in CoQ10 and 38.67%, -0.70-fold in AES pretreatment, respectively. Our results showed for the first time that the enhanced anti-inflammatory effect of combined CoQ10 and AES pretreatment prevented LPS-induced ALI via suppression of NLRP-3 inflammasome through regulation of HMGB1/TLR4 signaling pathway and mitochondrial stabilization.
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Affiliation(s)
- Fares E M Ali
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Salwa F Ahmed
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Amira H Eltrawy
- Department of Anatomy and Embryology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Reda S Yousef
- Department of Biochemistry, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Howaida S Ali
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
- Department of Pharmacology, Faculty of Medicine, University of Tabuk, Tabuk, Saudi Arabia
| | - Amany R Mahmoud
- Department of Human Anatomy and Embryology, Faculty of Medicine, Assiut University, Assiut, Egypt
- Department of Basic Medical Sciences, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah, Saudi Arabia
| | - Tarek H Abd-Elhamid
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt
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Jirru E, Lee S, Harris R, Yang J, Cho SJ, Stout-Delgado H. Impact of Influenza on Pneumococcal Vaccine Effectiveness during Streptococcus pneumoniae Infection in Aged Murine Lung. Vaccines (Basel) 2020; 8:E298. [PMID: 32545261 DOI: 10.3390/vaccines8020298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/19/2020] [Accepted: 06/09/2020] [Indexed: 11/17/2022] Open
Abstract
Changes in innate and adaptive immune responses caused by viral imprinting can have a significant direct or indirect influence on secondary infections and vaccine responses. The purpose of our current study was to investigate the role of immune imprinting by influenza on pneumococcal vaccine effectiveness during Streptococcus pneumoniae infection in the aged murine lung. Aged adult (18 months) mice were vaccinated with the pneumococcal polyvalent vaccine Pneumovax (5 mg/mouse). Fourteen days post vaccination, mice were instilled with PBS or influenza A/PR8/34 virus (3.5 × 102 PFU). Control and influenza-infected mice were instilled with PBS or S. pneumoniae (1 × 103 CFU, ATCC 6303) on day 7 of infection and antibacterial immune responses were assessed in the lung. Our results illustrate that, in response to a primary influenza infection, there was diminished bacterial clearance and heightened production of pro-inflammatory cytokines, such as IL6 and IL1β. Vaccination with Pneumovax decreased pro-inflammatory cytokine production by modulating NFҡB expression; however, these responses were significantly diminished after influenza infection. Taken together, the data in our current study illustrate that immune imprinting by influenza diminishes pneumococcal vaccine efficacy and, thereby, may contribute to increased susceptibility of older persons to a secondary infection with S. pneumoniae.
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Sartim MA, Souza COS, Diniz CRAF, da Fonseca VMB, Sousa LO, Peti APF, Costa TR, Lourenço AG, Borges MC, Sorgi CA, Faccioli LH, Sampaio SV. Crotoxin-Induced Mice Lung Impairment: Role of Nicotinic Acetylcholine Receptors and COX-Derived Prostanoids. Biomolecules 2020; 10:E794. [PMID: 32443924 DOI: 10.3390/biom10050794] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/13/2020] [Accepted: 03/14/2020] [Indexed: 12/12/2022] Open
Abstract
Respiratory compromise in Crotalus durissus terrificus (C.d.t.) snakebite is an important pathological condition. Considering that crotoxin (CTX), a phospholipase A2 from C.d.t. venom, is the main component of the venom, the present work investigated the toxin effects on respiratory failure. Lung mechanics, morphology and soluble markers were evaluated from Swiss male mice, and mechanism determined using drugs/inhibitors of eicosanoids biosynthesis pathway and autonomic nervous system. Acute respiratory failure was observed, with an early phase (within 2 h) characterized by enhanced presence of eicosanoids, including prostaglandin E2, that accounted for the increased vascular permeability in the lung. The alterations of early phase were inhibited by indomethacin. The late phase (peaked 12 h) was marked by neutrophil infiltration, presence of pro-inflammatory cytokines/chemokines, and morphological alterations characterized by alveolar septal thickening and bronchoconstriction. In addition, lung mechanical function was impaired, with decreased lung compliance and inspiratory capacity. Hexamethonium, a nicotinic acetylcholine receptor antagonist, hampered late phase damages indicating that CTX-induced lung impairment could be associated with cholinergic transmission. The findings reported herein highlight the impact of CTX on respiratory compromise, and introduce the use of nicotinic blockers and prostanoids biosynthesis inhibitors as possible symptomatic therapy to Crotalus durissus terrificus snakebite.
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Schniering J, Borgna F, Siwowska K, Benešová M, Cohrs S, Hasler R, van der Meulen NP, Maurer B, Schibli R, Müller C. In Vivo Labeling of Plasma Proteins for Imaging of Enhanced Vascular Permeability in the Lungs. Mol Pharm 2018; 15:4995-5004. [DOI: 10.1021/acs.molpharmaceut.8b00606] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Janine Schniering
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Francesca Borgna
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
- Legnaro National Laboratories, National Institute of Nuclear Physics, 35020 Legnaro, Italy
| | - Klaudia Siwowska
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
| | - Martina Benešová
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Susan Cohrs
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
| | - Roger Hasler
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
| | - Nicholas P. van der Meulen
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
- Laboratory of Radiochemistry, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
| | - Britta Maurer
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Roger Schibli
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Cristina Müller
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
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Akasaka K, Tanaka T, Maruyama T, Kitamura N, Hashimoto A, Ito Y, Watanabe H, Wakayama T, Arai T, Hayashi M, Moriyama H, Uchida K, Ohkouchi S, Tazawa R, Takada T, Yamaguchi E, Ichiwata T, Hirose M, Arai T, Inoue Y, Kobayashi H, Nakata K. A mathematical model to predict protein wash out kinetics during whole-lung lavage in autoimmune pulmonary alveolar proteinosis. Am J Physiol Lung Cell Mol Physiol 2015; 308:L105-17. [PMID: 25398988 DOI: 10.1152/ajplung.00239.2014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 11/22/2022] Open
Abstract
Whole-lung lavage (WLL) remains the standard therapy for pulmonary alveolar proteinosis (PAP), a process in which accumulated surfactants are washed out of the lung with 0.5-2.0 l of saline aliquots for 10-30 wash cycles. The method has been established empirically. In contrast, the kinetics of protein transfer into the lavage fluid has not been fully evaluated either theoretically or practically. Seventeen lungs from patients with autoimmune PAP underwent WLL. We made accurate timetables for each stage of WLL, namely, instilling, retaining, draining, and preparing. Subsequently, we measured the volumes of both instilled saline and drained lavage fluid, as well as the concentrations of proteins in the drained lavage fluid. We also proposed a mathematical model of protein transfer into the lavage fluid in which time is a single variable as the protein moves in response to the simple diffusion. The measured concentrations of IgG, transferrin, albumin, and β2-microglobulin closely matched the corresponding theoretical values calculated through differential equations. Coefficients for transfer of β2-microglobulin from the blood to the lavage fluid were two orders of magnitude higher than those of IgG, transferrin, and albumin. Simulations using the mathematical model showed that the cumulative amount of eliminated protein was not affected by the duration of each cycle but dependent mostly on the total time of lavage and partially on the volume instilled. Although physicians have paid little attention to the transfer of substances from the lung to lavage fluid, WLL seems to be a procedure that follows a diffusion-based mathematical model.
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Affiliation(s)
- Keiichi Akasaka
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Takahiro Tanaka
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Takashi Maruyama
- Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
| | - Nobutaka Kitamura
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Atsushi Hashimoto
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Yuko Ito
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Hiroyoshi Watanabe
- Department of Respiratory Medicine, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - Tomoshige Wakayama
- Department of Respiratory Medicine, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - Takero Arai
- Department of Anesthesiology, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - Masachika Hayashi
- Division of Respiratory Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Hiroshi Moriyama
- Division of Respiratory Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Kanji Uchida
- Department of Anesthesiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinya Ohkouchi
- Department of Respiratory Medicine, Tohoku University Graduate school of Medicine, Miyagi, Japan
| | - Ryushi Tazawa
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Toshinori Takada
- Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Etsuro Yamaguchi
- Department of Respiratory and Allergy Medicine, Aichi Medical University, Aichi, Japan
| | - Toshio Ichiwata
- Department of Pulmonary Medicine, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - Masaki Hirose
- Clinical Research Center, NHO Kinki-Chuo Chest Medical Center, Osaka, Japan; and
| | - Toru Arai
- Clinical Research Center, NHO Kinki-Chuo Chest Medical Center, Osaka, Japan; and
| | - Yoshikazu Inoue
- Clinical Research Center, NHO Kinki-Chuo Chest Medical Center, Osaka, Japan; and
| | - Hirosuke Kobayashi
- Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan
| | - Koh Nakata
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan;
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Herance JR, Gispert JD, Abad S, Victor VM, Pareto D, Torrent È, Rojas S. Erythrocytes labeled with [(18) F]SFB as an alternative to radioactive CO for quantification of blood volume with PET. Contrast Media Mol Imaging 2013; 8:375-81. [PMID: 23613441 DOI: 10.1002/cmmi.1533] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 10/29/2012] [Accepted: 01/07/2013] [Indexed: 11/10/2022]
Abstract
Inhaled radioactive CO is currently the tracer of choice for blood volume quantification by positron emission tomography (PET). This measurement is of great interest for several clinical and research applications. However, owing to the short half-life of the radiolabeled CO, it can only be used in centers equipped with a cyclotron. In the present work, we propose an alternative method to label the red blood cells with [(18) F] in order to obtain blood volume measurements by PET. The use of the radioactive synthon [(18) F] N-succinimidyl 4-[(18) F]fluorobenzoate ([(18) F]SFB) was evaluated for erythrocyte labeling and PET blood volume imaging. The images provided by [(18) F]SFB labeled erythrocytes were compared with those obtained with inhaled [(11) C]CO. Blood volumes obtained with [(18) F]SFB labeled erythrocytes were similar to those obtained with [(11) C]CO in all of the evaluated organs with the exception of spleen, which presented lower uptake with this method. Since the [(18) F]-SFB binds irreversibly to red blood cells, in vivo stability of the radiolabel was higher compared with the [(11) C]CO method. Additionally, owing to the longer half-life and the shorter positron range of [(18) F], the image quality was also higher with the [(18) F]SFB radiolabeled erythrocytes. The labeling of red blood with [(18) F]SFB represents an advantageous alternative to radioactive CO for blood volume measurement by PET and cardiovascular isotopic imaging.
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Affiliation(s)
- José Raúl Herance
- CRC Centre d'Imatge Molecular, CRC Corporació Sanitària, Barcelona, Spain
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