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Wimborne HJ, Takemoto K, Woster PM, Rockey DC, Lemasters JJ, Zhong Z. Aldehyde dehydrogenase-2 activation by Alda-1 decreases necrosis and fibrosis after bile duct ligation in mice. Free Radic Biol Med 2019; 145:136-145. [PMID: 31557514 PMCID: PMC6880805 DOI: 10.1016/j.freeradbiomed.2019.09.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/11/2019] [Accepted: 09/22/2019] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND AIM Liver fibrosis is a leading cause of mortality worldwide. Oxidative stress is a key component in the pathogenesis of liver fibrosis. We investigated the role of aldehyde formation resulting from lipid peroxidation in cholestatic liver injury and fibrosis. METHODS C57Bl/6J mice underwent bile duct ligation (BDL) or sham operation. One hour after surgery and daily thereafter, animals were given Alda-1 (20 mg/kg, s.c.), an aldehyde dehydrogenase-2 activator, or equivalent volume of vehicle. Blood and livers were collected after 3 and 14 days. RESULTS Serum alanine aminotransferase (ALT) increased from 39.8 U/L after sham operation to 537 U/L 3 days after BDL, which Alda-1 decreased to 281 U/L. Biliary infarcts with a periportal distribution developed with an area of 7.8% at 14 days after BDL versus 0% area after sham operation. Alda-1 treatment with BDL decreased biliary infarcts to 1.9%. Fibrosis detected by picrosirius red staining increased from 1.6% area in sham to 7.3% after BDL, which decreased to 3.8% with Alda-1. Alda-1 suppression of fibrosis was additionally confirmed by second harmonic generation microscopy. After BDL, collagen-I mRNA increased 12-fold compared to sham, which decreased to 6-fold after Alda-1 treatment. Smooth muscle α-actin expression in the liver, a marker of activated stellate cells, increased from 1% area in sham to 18.7% after BDL, which decreased to 5.3% with Alda-1. CD68-positive macrophages increased from 33.4 cells/field in sham to 134.5 cells/field after BDL, which decreased to 64.9 cells/field with Alda-1. Lastly, 4-hydroxynonenal adduct (4-HNE) immunofluorescence increased from 2.5% area in sham to 14.1% after BDL. Alda-1 treatment decreased 4-HNE to 2.2%. CONCLUSION Accelerated aldehyde degradation by Alda-1 decreases BDL-induced liver necrosis, inflammation, and fibrosis, implying that aldehydes play an important role in the pathogenesis of cholestatic liver injury and fibrosis.
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Affiliation(s)
- Hereward J Wimborne
- Center for Cell Death, Injury & Regeneration, Medical University of South Carolina, Charleston, SC, 29425, United States; Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, 29425, United States
| | - Kenji Takemoto
- Center for Cell Death, Injury & Regeneration, Medical University of South Carolina, Charleston, SC, 29425, United States; Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, 29425, United States
| | - Patrick M Woster
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, 29425, United States
| | - Don C Rockey
- Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, United States
| | - John J Lemasters
- Center for Cell Death, Injury & Regeneration, Medical University of South Carolina, Charleston, SC, 29425, United States; Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, 29425, United States; Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, 29425, United States; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, United States
| | - Zhi Zhong
- Center for Cell Death, Injury & Regeneration, Medical University of South Carolina, Charleston, SC, 29425, United States; Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, 29425, United States.
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Riew TR, Choi JH, Kim HL, Jin X, Lee MY. PDGFR-β-Positive Perivascular Adventitial Cells Expressing Nestin Contribute to Fibrotic Scar Formation in the Striatum of 3-NP Intoxicated Rats. Front Mol Neurosci 2018; 11:402. [PMID: 30455628 PMCID: PMC6230557 DOI: 10.3389/fnmol.2018.00402] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 10/15/2018] [Indexed: 11/13/2022] Open
Abstract
Perivascular cells expressing platelet-derived growth factor receptor beta (PDGFR-β) have recently been implicated in fibrotic scar formation after acute brain injury, but their precise identity and detailed morphological characteristics remain elusive. This study sought to characterize and define the cellular phenotype of vascular-associated cells expressing PDGFR-β in the striatum of rats treated with the mitochondrial toxin 3-nitropropionic acid (3-NP). In the control striatum, PDGFR-β-positive cells were invariably localized on the abluminal side of smooth muscle cells of larger caliber vessels, and demonstrated morphological features typical of perivascular fibroblasts. PDGFR-β expression increased and expanded to almost all vessels, including microvessels in the lesion core, at 7 days after 3-NP injection. The cells expressing PDGFR-β had ultrastructural features of fibroblasts undergoing active collagen synthesis: large euchromatic nuclei with a prominent nucleolus, well-developed rough endoplasmic reticulum (rER) with dilated cisterns and extracellular collagen fibrils. By 14 days, PDGFR-β-positive cells had somata located at a distance from the vasculature, and their highly ramified, slender processes overlapped with those from other cells, thus forming a plexus of processes in the extravascular space of the lesion core. In addition, their ultrastructural morphology and spatial correlation with activated microglia/macrophages were elaborated by three-dimensional reconstruction. Using a correlative light- and electron-microscopy technique, we found that the intermediate filament proteins nestin and vimentin were induced in PDGFRβ-positive fibroblasts in the lesion core. Collectively, our data suggest that perivascular PDGFR-β-positive fibroblasts are distinct from other vascular cell types, including pericytes and contribute to fibrotic scar formation in the lesion core after acute brain injury. Nestin and vimentin play critical roles in the structural dynamics of these reactive fibroblasts.
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Affiliation(s)
- Tae-Ryong Riew
- Department of Anatomy, Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jeong-Heon Choi
- Department of Anatomy, Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hong Lim Kim
- Integrative Research Support Center, Laboratory of Electron Microscope, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Xuyan Jin
- Department of Anatomy, Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Mun-Yong Lee
- Department of Anatomy, Catholic Neuroscience Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Yang AJ, Wang M, Wang Y, Cai W, Li Q, Zhao TT, Zhang LH, Houck K, Chen X, Jin YL, Mu JY, Dong JF, Li M. Cancer cell-derived von Willebrand factor enhanced metastasis of gastric adenocarcinoma. Oncogenesis 2018; 7:12. [PMID: 29362409 PMCID: PMC5833464 DOI: 10.1038/s41389-017-0023-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/16/2017] [Indexed: 01/30/2023] Open
Abstract
Cancer prognosis is poor for patients with blood-borne metastasis. Platelets are known to assist cancer cells in transmigrating through the endothelium, but ligands for the platelet-mediated cancer metastasis remain poorly defined. von Willebrand factor (vWF) is a major platelet ligand that has been widely used as a biomarker in cancer and associated inflammation. However, its functional role in cancer growth and metastasis is largely unknown. Here we report that gastric cancer cells from patients and cells from two well-established gastric cancer lines express vWF and secrete it into the circulation, upon which it rapidly becomes cell-bound to mediate cancer-cell aggregation and interaction with platelets and endothelial cells. The vWF-mediated homotypic and heterotypic cell-cell interactions promote the pulmonary graft of vWF-overexpressing gastric cancer BGC823 cells in a mouse model. The metastasis-promoting activity of vWF was blocked by antibodies against vWF and its platelet receptor GP Ibα. It was also reduced by an inhibitory siRNA that suppresses vWF expression. These findings demonstrate a causal role of cancer-cell-derived vWF in mediating gastric cancer metastasis and identify vWF as a new therapeutic target.
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Affiliation(s)
- Ai-Jun Yang
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Min Wang
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Yan Wang
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Gansu Provincial Hospital, Lanzhou, China
| | - Wei Cai
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Gansu Provincial Hospital, Lanzhou, China
| | - Qiang Li
- The First Affiliated Hospital of Lanzhou University, Lanzhou, China
| | - Ting-Ting Zhao
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Li-Han Zhang
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Katie Houck
- Bloodworks Research Institute, Seattle, Washington, USA
| | - Xu Chen
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Gansu Provincial Hospital, Lanzhou, China
| | - Yan-Ling Jin
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Ji-Ying Mu
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Jing-Fei Dong
- Bloodworks Research Institute, Seattle, Washington, USA. .,Division of Hematology, Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA.
| | - Min Li
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China. .,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China. .,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, China.
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Silva-Palacios A, Colín-González AL, López-Cervantes SP, Zazueta C, Luna-López A, Santamaría A, Königsberg M. Tert-buthylhydroquinone pre-conditioning exerts dual effects in old female rats exposed to 3-nitropropionic acid. Redox Biol 2017; 12:610-624. [PMID: 28391182 PMCID: PMC5384325 DOI: 10.1016/j.redox.2017.03.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 03/27/2017] [Accepted: 03/28/2017] [Indexed: 01/08/2023] Open
Abstract
The brain is a very susceptible organ to structural and functional alterations caused by oxidative stress and its vulnerability increases with age. Understanding the antioxidant response activated by the transcription factor Nrf2 has become very important in the aging field in order to activate cellular protection. However, the role of Nrf2 inducers during old age has not been completely understood. Our aim was to activate the Nrf2 pathway by pre-treating old rats with a widely used Nrf2-inducer, tert-buthylhydroquinone (tBHQ), prior to 3-nitropropionic acid (3-NP) insult, in order to evaluate its effects at a behavioral, morphological and biochemical levels. 3-NP has been used to reproduce the biochemical and pathophysiological characteristics of Huntington's disease due to an oxidative effect. Our results suggest that tBHQ confers an important protective effect against 3-NP toxicity; nevertheless, Nrf2 seems not to be the main protective pathway associated to neuroprotection. Hormetic responses include the activation of more than one transcription factor. Nrf2 and NFκB are known to simultaneously initiate different cellular responses against stress by triggering parallel mechanisms, therefore NFκB nuclear accumulation was also evaluated. Old rats are able to activate an hormetic response against 3NP toxicity. tBHQ pre-conditioning exerts an antioxidant-prooxidant, dual role in old rats. tBHQ activates a crosstalk mechanism between NFκB and Nrf2.
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Affiliation(s)
- Alejandro Silva-Palacios
- Departamento de Ciencias de la Salud, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Ciudad de México 09340, Mexico; Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico; Posgrado en Biología Experimental, Universidad Autonomas Metropolitana, Iztapalapa, Ciudad de México, Mexico
| | - Ana L Colín-González
- Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, SSA, Ciudad de México 14269, Mexico
| | - Stefanie P López-Cervantes
- Departamento de Ciencias de la Salud, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Ciudad de México 09340, Mexico
| | - Cecilia Zazueta
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
| | | | - Abel Santamaría
- Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, SSA, Ciudad de México 14269, Mexico
| | - Mina Königsberg
- Departamento de Ciencias de la Salud, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Ciudad de México 09340, Mexico.
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Riew TR, Kim HL, Jin X, Choi JH, Shin YJ, Kim JS, Lee MY. Spatiotemporal expression of osteopontin in the striatum of rats subjected to the mitochondrial toxin 3-nitropropionic acid correlates with microcalcification. Sci Rep 2017; 7:45173. [PMID: 28345671 PMCID: PMC5366947 DOI: 10.1038/srep45173] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 02/20/2017] [Indexed: 11/18/2022] Open
Abstract
Our aim was to elucidate whether osteopontin (OPN) is involved in the onset of mineralisation and progression of extracellular calcification in striatal lesions due to mitochondrial toxin 3-nitropropionic acid exposure. OPN expression had two different patterns when observed using light microscopy. It was either localised to the Golgi complex in brain macrophages or had a small granular pattern scattered in the affected striatum. OPN labelling tended to increase in number and size over a 2-week period following the lesion. Ultrastructural investigations revealed that OPN is initially localised to degenerating mitochondria within distal dendrites, which were then progressively surrounded by profuse OPN on days 7–14. Electron probe microanalysis of OPN-positive and calcium-fixated neurites indicated that OPN accumulates selectively on the surfaces of degenerating calcifying dendrites, possibly via interactions between OPN and calcium. In addition, 3-dimensional reconstruction of OPN-positive neurites revealed that they are in direct contact with larger OPN-negative degenerating dendrites rather than with fragmented cell debris. Our overall results indicate that OPN expression is likely to correlate with the spatiotemporal progression of calcification in the affected striatum, and raise the possibility that OPN may play an important role in the initiation and progression of microcalcification in response to brain insults.
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Affiliation(s)
- Tae-Ryong Riew
- Department of Anatomy, Catholic Neuroscience Institute, Cell Death Disease Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hong Lim Kim
- Integrative Research Support Center, Laboratory of Electron Microscope, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Xuyan Jin
- Department of Anatomy, Catholic Neuroscience Institute, Cell Death Disease Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jeong-Heon Choi
- Department of Anatomy, Catholic Neuroscience Institute, Cell Death Disease Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoo-Jin Shin
- Department of Anatomy, Catholic Neuroscience Institute, Cell Death Disease Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji Soo Kim
- Gumi Electronics &Information Technology Research Institute, Gumi, Korea
| | - Mun-Yong Lee
- Department of Anatomy, Catholic Neuroscience Institute, Cell Death Disease Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Chang SW, Kim HI, Kim GH, Park SJ, Kim IB. Increased Expression of Osteopontin in Retinal Degeneration Induced by Blue Light-Emitting Diode Exposure in Mice. Front Mol Neurosci 2016; 9:58. [PMID: 27504084 PMCID: PMC4958628 DOI: 10.3389/fnmol.2016.00058] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 07/07/2016] [Indexed: 02/01/2023] Open
Abstract
Osteopontin (OPN) is a multifunctional adhesive glycoprotein that is implicated in a variety of pro-inflammatory as well as neuroprotective and repair-promoting effects in the brain. As a first step towards understanding the role of OPN in retinal degeneration (RD), we examined changes in OPN expression in a mouse model of RD induced by exposure to a blue light-emitting diode (LED). RD was induced in BALB/c mice by exposure to a blue LED (460 nm) for 2 h. Apoptotic cell death was evaluated by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. In order to investigate changes in OPN in RD, western blotting and immunohistochemistry were performed. Anti-OPN labeling was compared to that of anti-glial fibrillary acidic protein (GFAP), which is a commonly used marker for retinal injury or stress including inflammation. OPN expression in RD retinas markedly increased at 24 h after exposure, was sustained through 72 h, and subsided at 120 h. Increased OPN expression was observed co-localized with microglial cells in the outer nuclear layer (ONL), outer plexiform layer (OPL), and subretinal space. Expression was restricted to the central retina in which photoreceptor cell death occurred. Interestingly, OPN expression in the ONL/OPL was closely associated with microglia, whereas most of the OPN plaques observed in the subretinal space were not. Immunogold electron microscopy demonstrated that OPN was distributed throughout the cytoplasm of microglia and in nearby fragments of degenerating photoreceptors. In addition, we found that OPN was induced more acutely and with greater region specificity than GFAP. These results indicate that OPN may be a more useful marker for retinal injury or stress, and furthermore act as a microglial pro-inflammatory mediator and a phagocytosis-inducing opsonin in the subretinal space. Taken together, our data suggest that OPN plays an important role in the pathogenesis of RD.
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Affiliation(s)
- Seung Wook Chang
- Department of Anatomy, College of Medicine, The Catholic University of Korea Seoul, Korea
| | - Hyung Il Kim
- Department of Anatomy, College of Medicine, The Catholic University of KoreaSeoul, Korea; Gyeongju St. Mary's Eye ClinicGyeongju, Korea
| | - Gyu Hyun Kim
- Department of Anatomy, College of Medicine, The Catholic University of KoreaSeoul, Korea; Catholic Neuroscience Institute, College of Medicine, The Catholic University of KoreaSeoul, Korea
| | - Su Jin Park
- Department of Anatomy, College of Medicine, The Catholic University of KoreaSeoul, Korea; Catholic Neuroscience Institute, College of Medicine, The Catholic University of KoreaSeoul, Korea
| | - In-Beom Kim
- Department of Anatomy, College of Medicine, The Catholic University of KoreaSeoul, Korea; Catholic Neuroscience Institute, College of Medicine, The Catholic University of KoreaSeoul, Korea; Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of KoreaSeoul, Korea
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