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  1. Article ; Online: Mechanisms and consequences of oxidative stress in lung disease: therapeutic implications for an aging populace.

    Hecker, Louise

    American journal of physiology. Lung cellular and molecular physiology

    2017  Volume 314, Issue 4, Page(s) L642–L653

    Abstract: The rapid expansion of the elderly population has led to the recent epidemic of age-related diseases, including increased incidence and mortality of chronic and acute lung diseases. Numerous studies have implicated aging and oxidative stress in the ... ...

    Abstract The rapid expansion of the elderly population has led to the recent epidemic of age-related diseases, including increased incidence and mortality of chronic and acute lung diseases. Numerous studies have implicated aging and oxidative stress in the pathogenesis of various pulmonary diseases; however, despite recent advances in these fields, the specific contributions of aging and oxidative stress remain elusive. This review will discuss the consequences of aging on lung morphology and physiology, and how redox imbalance with aging contributes to lung disease susceptibility. Here, we focus on three lung diseases for which aging is a significant risk factor: acute respiratory distress syndrome (ARDS), chronic obstructive pulmonary disease (COPD), and idiopathic pulmonary fibrosis (IPF). Preclinical and clinical development for redox- and senescence-altering therapeutic strategies are discussed, as well as scientific advancements that may direct current and future therapeutic development. A deeper understanding of how aging impacts normal lung function, redox balance, and injury-repair processes will inspire the development of new therapies to prevent and/or reverse age-associated pulmonary diseases, and ultimately increase health span and longevity. This review is intended to encourage basic, clinical, and translational research that will bridge knowledge gaps at the intersection of aging, oxidative stress, and lung disease to fuel the development of more effective therapeutic strategies for lung diseases that disproportionately afflict the elderly.
    MeSH term(s) Aging ; Animals ; Humans ; Lung Diseases/metabolism ; Lung Diseases/pathology ; Lung Diseases/therapy ; Oxidative Stress
    Language English
    Publishing date 2017-12-14
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 1013184-x
    ISSN 1522-1504 ; 1040-0605
    ISSN (online) 1522-1504
    ISSN 1040-0605
    DOI 10.1152/ajplung.00275.2017
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: NADPH oxidases: Pathophysiology and therapeutic potential in age-associated pulmonary fibrosis.

    Kato, Kosuke / Hecker, Louise

    Redox biology

    2020  Volume 33, Page(s) 101541

    Abstract: Oxidative stress has been associated with a number of human fibrotic diseases, including idiopathic pulmonary fibrosis (IPF). Although oxidative stress is associated with both fibrosis and aging, the precise cellular sources(s) of reactive oxygen species ...

    Abstract Oxidative stress has been associated with a number of human fibrotic diseases, including idiopathic pulmonary fibrosis (IPF). Although oxidative stress is associated with both fibrosis and aging, the precise cellular sources(s) of reactive oxygen species (ROS) that contribute to the disease pathogenesis remain poorly understood. NADPH oxidase (Nox) enzymes are an evolutionarily conserved family, where their only known function is the production of ROS. A growing body of evidence supports a link between excessive Nox-derived ROS and numerous chronic diseases (including fibrotic disease), which is most prevalent among the elderly population. In this review, we examine the evidence for Nox isoforms in the pathogenesis of IPF, and the potential to target this enzyme family for the treatment of IPF and related fibrotic disorders. A better understanding of the Nox-mediated redox imbalance in aging may be critical to the development of more effective therapeutic strategies for age-associated fibrotic disorders. Strategies aimed at specifically blocking the source(s) of ROS through Nox inhibition may prove to be more effective as anti-fibrotic therapies, as compared to antioxidant approaches. This review also discusses the potential of Nox-targeting therapeutics currently in development.
    MeSH term(s) Aged ; Humans ; Idiopathic Pulmonary Fibrosis/drug therapy ; NADPH Oxidases/genetics ; NADPH Oxidases/metabolism ; Oxidation-Reduction ; Oxidative Stress ; Reactive Oxygen Species
    Chemical Substances Reactive Oxygen Species ; NADPH Oxidases (EC 1.6.3.-)
    Language English
    Publishing date 2020-04-17
    Publishing country Netherlands
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 2701011-9
    ISSN 2213-2317 ; 2213-2317
    ISSN (online) 2213-2317
    ISSN 2213-2317
    DOI 10.1016/j.redox.2020.101541
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Contracting scars from fibrin drops.

    Robinson, Stephen / Parigoris, Eric / Chang, Jonathan / Hecker, Louise / Takayama, Shuichi

    Integrative biology : quantitative biosciences from nano to macro

    2022  Volume 14, Issue 1, Page(s) 1–12

    Abstract: This paper describes a microscale fibroplasia and contraction model that is based on fibrin-embedded lung fibroblasts and provides a convenient visual readout of fibrosis. Cell-laden fibrin microgel drops are formed by aqueous two-phase microprinting. ... ...

    Abstract This paper describes a microscale fibroplasia and contraction model that is based on fibrin-embedded lung fibroblasts and provides a convenient visual readout of fibrosis. Cell-laden fibrin microgel drops are formed by aqueous two-phase microprinting. The cells deposit extracellular matrix (ECM) molecules such as collagen while fibrin is gradually degraded. Ultimately, the cells contract the collagen-rich matrix to form a compact cell-ECM spheroid. The size of the spheroid provides the visual readout of the extent of fibroplasia. Stimulation of this wound-healing model with the profibrotic cytokine TGF-β1 leads to an excessive scar formation response that manifests as increased collagen production and larger cell-ECM spheroids. Addition of drugs also shifted the scarring profile: the FDA-approved fibrosis drugs (nintedanib and pirfenidone) and a PAI-1 inhibitor (TM5275) significantly reduced cell-ECM spheroid size. Not only is the assay useful for evaluation of antifibrotic drug effects, it is relatively sensitive; one of the few in vitro fibroplasia assays that can detect pirfenidone effects at submillimolar concentrations. Although this paper focuses on lung fibrosis, the approach opens opportunities for studying a broad range of fibrotic diseases and for evaluating antifibrotic therapeutics.
    MeSH term(s) Cells, Cultured ; Cicatrix ; Collagen/metabolism ; Extracellular Matrix/metabolism ; Fibrin ; Fibroblasts/metabolism ; Fibrosis ; Humans ; Transforming Growth Factor beta1/metabolism
    Chemical Substances Transforming Growth Factor beta1 ; Fibrin (9001-31-4) ; Collagen (9007-34-5)
    Language English
    Publishing date 2022-02-19
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2480063-6
    ISSN 1757-9708 ; 1757-9694
    ISSN (online) 1757-9708
    ISSN 1757-9694
    DOI 10.1093/intbio/zyac001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Aqueous two-phase deposition and fibrinolysis of fibroblast-laden fibrin micro-scaffolds.

    Robinson, Stephen / Chang, Jonathan / Parigoris, Eric / Hecker, Louise / Takayama, Shuichi

    Biofabrication

    2021  Volume 13, Issue 3

    Abstract: This paper describes printing of microscale fibroblast-laden matrices using an aqueous two-phase approach that controls thrombin-mediated enzymatic crosslinking of fibrin. Optimization of aqueous two-phase formulations enabled polymerization of ... ...

    Abstract This paper describes printing of microscale fibroblast-laden matrices using an aqueous two-phase approach that controls thrombin-mediated enzymatic crosslinking of fibrin. Optimization of aqueous two-phase formulations enabled polymerization of consistent sub-microliter volumes of cell-laden fibrin. When plasminogen was added to these micro-scaffolds, the primary normal human lung fibroblasts converted it to plasmin, triggering gradual degradation of the fibrin. Time-lapse live-cell imaging and automated image analysis provided readouts of time to degradation of 50% of the scaffold as well as maximum degradation rate. The time required for degradation decreased linearly with cell number while it increased in a dose-dependent manner upon addition of TGF-
    MeSH term(s) Fibrin ; Fibrinolysis ; Fibroblasts ; Humans ; Wound Healing
    Chemical Substances Fibrin (9001-31-4)
    Language English
    Publishing date 2021-04-07
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2500944-8
    ISSN 1758-5090 ; 1758-5082
    ISSN (online) 1758-5090
    ISSN 1758-5082
    DOI 10.1088/1758-5090/abdb85
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Getting to the core of fibrosis: targeting redox imbalance in aging.

    Hecker, Louise / Thannickal, Victor J

    Annals of translational medicine

    2016  Volume 4, Issue 5, Page(s) 93

    Language English
    Publishing date 2016-03-22
    Publishing country China
    Document type Journal Article
    ZDB-ID 2893931-1
    ISSN 2305-5847 ; 2305-5839
    ISSN (online) 2305-5847
    ISSN 2305-5839
    DOI 10.21037/atm.2015.12.45
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  6. Article: Lung-Targeted Delivery of Dimethyl Fumarate Promotes the Reversal of Age-Dependent Established Lung Fibrosis

    Kato, Kosuke / Papageorgiou, Ioannis / Shin, Yoon-Joo / Kleinhenz, Jennifer M. / Palumbo, Sunny / Hahn, Seongmin / Irish, Joseph D. / Rounseville, Skye P. / Knox, Kenneth S. / Hecker, Louise

    Antioxidants. 2022 Feb. 28, v. 11, no. 3

    2022  

    Abstract: Idiopathic pulmonary fibrosis (IPF), a severe and deadly form of lung fibrosis, is widely regarded as a disease of aging. We previously demonstrated that aged mice with persistent lung fibrosis and IPF lung myofibroblasts exhibit deficient Nrf2-mediated ... ...

    Abstract Idiopathic pulmonary fibrosis (IPF), a severe and deadly form of lung fibrosis, is widely regarded as a disease of aging. We previously demonstrated that aged mice with persistent lung fibrosis and IPF lung myofibroblasts exhibit deficient Nrf2-mediated antioxidant responses. Tecfidera is an orally administered FDA-approved drug for the treatment of multiple sclerosis, where the active pharmaceutical ingredient is dimethyl fumarate (DMF), an active Nrf2 activator. However, no studies have evaluated the efficacy of DMF for age-associated persistent lung fibrosis. Here, we demonstrate that in IPF lung fibroblasts, DMF treatment inhibited both TGF-β-mediated pro-fibrotic phenotypes and led to a reversal of established pro-fibrotic phenotypes. We also evaluated the pre-clinical efficacy of lung-targeted (inhaled) vs. systemic (oral) delivery of DMF in an aging murine model of bleomycin-induced persistent lung fibrosis. DMF or vehicle was administered daily to aged mice by oral gavage or intranasal delivery from 3–6 weeks post-injury when mice exhibited non-resolving lung fibrosis. In contrast to systemic (oral) delivery, only lung-targeted (inhaled) delivery of DMF restored lung Nrf2 expression levels, reduced lung oxidative stress, and promoted the resolution of age-dependent established fibrosis. This is the first study to demonstrate the efficacy of lung-targeted DMF delivery to promote the resolution of age-dependent established lung fibrosis.
    Keywords active pharmaceutical ingredients ; animal models ; antioxidants ; dimethyl fumarate ; drugs ; fibroblasts ; fibrosis ; lungs ; oxidative stress ; pulmonary fibrosis ; sclerosis
    Language English
    Dates of publication 2022-0228
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2704216-9
    ISSN 2076-3921
    ISSN 2076-3921
    DOI 10.3390/antiox11030492
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Active transcription in the vascular bed characterizes rapid progression in idiopathic pulmonary fibrosis.

    Sharma, Nirmal S / Patel, Kapil / Sari, Ezgi / Shankar, Shruti / Gastanadui, Maria G / Moncada-Giraldo, Diego / Soto-Vazquez, Yixel / Stacks, Delores / Hecker, Louise / Dsouza, Kevin / Banday, Mudassir / O'Neill, Edward / Benson, Paul / Payne, Gregory / Margaroli, Camilla / Gaggar, Amit

    The Journal of clinical investigation

    2023  Volume 133, Issue 16

    MeSH term(s) Humans ; Idiopathic Pulmonary Fibrosis/genetics ; Disease Progression ; Lung
    Language English
    Publishing date 2023-08-15
    Publishing country United States
    Document type Research Support, N.I.H., Extramural ; Letter ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, Non-U.S. Gov't
    ZDB-ID 3067-3
    ISSN 1558-8238 ; 0021-9738
    ISSN (online) 1558-8238
    ISSN 0021-9738
    DOI 10.1172/JCI165976
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  8. Article: Lung-Targeted Delivery of Dimethyl Fumarate Promotes the Reversal of Age-Dependent Established Lung Fibrosis.

    Kato, Kosuke / Papageorgiou, Ioannis / Shin, Yoon-Joo / Kleinhenz, Jennifer M / Palumbo, Sunny / Hahn, Seongmin / Irish, Joseph D / Rounseville, Skye P / Knox, Kenneth S / Hecker, Louise

    Antioxidants (Basel, Switzerland)

    2022  Volume 11, Issue 3

    Abstract: Idiopathic pulmonary fibrosis (IPF), a severe and deadly form of lung fibrosis, is widely regarded as a disease of aging. We previously demonstrated that aged mice with persistent lung fibrosis and IPF lung myofibroblasts exhibit deficient Nrf2-mediated ... ...

    Abstract Idiopathic pulmonary fibrosis (IPF), a severe and deadly form of lung fibrosis, is widely regarded as a disease of aging. We previously demonstrated that aged mice with persistent lung fibrosis and IPF lung myofibroblasts exhibit deficient Nrf2-mediated antioxidant responses. Tecfidera is an orally administered FDA-approved drug for the treatment of multiple sclerosis, where the active pharmaceutical ingredient is dimethyl fumarate (DMF), an active Nrf2 activator. However, no studies have evaluated the efficacy of DMF for age-associated persistent lung fibrosis. Here, we demonstrate that in IPF lung fibroblasts, DMF treatment inhibited both TGF-β-mediated pro-fibrotic phenotypes and led to a reversal of established pro-fibrotic phenotypes. We also evaluated the pre-clinical efficacy of lung-targeted (inhaled) vs. systemic (oral) delivery of DMF in an aging murine model of bleomycin-induced persistent lung fibrosis. DMF or vehicle was administered daily to aged mice by oral gavage or intranasal delivery from 3-6 weeks post-injury when mice exhibited non-resolving lung fibrosis. In contrast to systemic (oral) delivery, only lung-targeted (inhaled) delivery of DMF restored lung Nrf2 expression levels, reduced lung oxidative stress, and promoted the resolution of age-dependent established fibrosis. This is the first study to demonstrate the efficacy of lung-targeted DMF delivery to promote the resolution of age-dependent established lung fibrosis.
    Language English
    Publishing date 2022-02-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704216-9
    ISSN 2076-3921
    ISSN 2076-3921
    DOI 10.3390/antiox11030492
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  9. Article ; Online: Nonresolving fibrotic disorders: idiopathic pulmonary fibrosis as a paradigm of impaired tissue regeneration.

    Hecker, Louise / Thannickal, Victor J

    The American journal of the medical sciences

    2011  Volume 341, Issue 6, Page(s) 431–434

    Abstract: The pathogenesis idiopathic pulmonary of fibrosis and related fibrosis lung disorders are complex and poorly understood. This likely involves cellular mechanisms that result in loss of cellular homeostasis leading to aberrant alveolar wall remodeling ... ...

    Abstract The pathogenesis idiopathic pulmonary of fibrosis and related fibrosis lung disorders are complex and poorly understood. This likely involves cellular mechanisms that result in loss of cellular homeostasis leading to aberrant alveolar wall remodeling through the excessive deposition of connective tissue matrices. Impaired tissue regeneration and dysregulation of cell death in lung fibroblasts and epithelial cells appear to be important in the initiation and progression of these disorders. This review summarizes current understanding in this area to stimulate research into the development of novel therapeutic strategies that prevent, halt or reverse the progression of lung fibrosis.
    MeSH term(s) Apoptosis ; Epithelial Cells/pathology ; Fibroblasts/pathology ; Fibrosis/pathology ; Fibrosis/physiopathology ; Humans ; Idiopathic Pulmonary Fibrosis/pathology ; Idiopathic Pulmonary Fibrosis/physiopathology ; Lung/pathology ; Lung/physiopathology ; Regeneration
    Language English
    Publishing date 2011-08-15
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 82078-7
    ISSN 1538-2990 ; 0002-9629
    ISSN (online) 1538-2990
    ISSN 0002-9629
    DOI 10.1097/MAJ.0b013e31821a9d66
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: MUC1 contributes to goblet cell metaplasia and MUC5AC expression in response to cigarette smoke in vivo.

    Kato, Kosuke / Chang, Eugene H / Chen, Yin / Lu, Wenju / Kim, Marianne M / Niihori, Maki / Hecker, Louise / Kim, Kwang Chul

    American journal of physiology. Lung cellular and molecular physiology

    2020  Volume 319, Issue 1, Page(s) L82–L90

    Abstract: Goblet cell metaplasia (GCM) and mucin overproduction are a hallmark of chronic rhinosinusitis (CRS) and chronic obstructive pulmonary disease (COPD). In the airways, cigarette smoke (CS) induces activation of the epidermal growth factor receptor (EGFR) ... ...

    Abstract Goblet cell metaplasia (GCM) and mucin overproduction are a hallmark of chronic rhinosinusitis (CRS) and chronic obstructive pulmonary disease (COPD). In the airways, cigarette smoke (CS) induces activation of the epidermal growth factor receptor (EGFR) leading to GCM and overexpression of the gel-forming mucin MUC5AC. Although previous studies have demonstrated that a membrane-bound mucin, MUC1, modulates the activation of CS-induced EGFR, the role of MUC1 in CS-induced GCM and mucin overproduction has not been explored. In response to CS exposure, wild-type (WT) rats displayed Muc1 translocation from the apical surface of airway epithelium to the intracellular compartment of hyperplastic intermediate cells, EGFR phosphorylation, GCM, and Muc5ac overproduction. Similarly, human CRS sinonasal tissues demonstrated hyperplasia of intermediate cells enriched with MUC1 in the intracellular compartment, which was accompanied by GCM and increased MUC5AC expression. To further evaluate the role of Muc1 in vivo, a Muc1 knockout (KO) rat (MUC in humans and Muc in animals) was developed. In contrast to WT littermates, Muc1-KO rats exhibited no activation of EGFR, and were protected from GCM and Muc5ac overproduction. Genetic knockdown of MUC1 in human lung or Muc1 knockout in primary rat airway epithelial cells led to significantly diminished EGF-induced MUC5AC production. Together, these findings suggest that MUC1-dependent EGFR activation mediates CS-induced GCM and mucin overproduction. Strategies designed to suppress MUC1-dependent EGFR activation may provide a novel therapeutic approach for treating mucin hypersecretion in CRS and COPD.
    MeSH term(s) Animals ; Cell Line, Tumor ; Cell Polarity ; Epithelial Cells/metabolism ; Epithelium/metabolism ; Epithelium/pathology ; ErbB Receptors/metabolism ; Goblet Cells/metabolism ; Goblet Cells/pathology ; Metaplasia ; Mucin 5AC/metabolism ; Mucin-1/metabolism ; Phosphorylation ; Rats, Sprague-Dawley ; Smoking/adverse effects
    Chemical Substances Mucin 5AC ; Mucin-1 ; ErbB Receptors (EC 2.7.10.1)
    Language English
    Publishing date 2020-05-13
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1013184-x
    ISSN 1522-1504 ; 1040-0605
    ISSN (online) 1522-1504
    ISSN 1040-0605
    DOI 10.1152/ajplung.00049.2019
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