scholarly journals The Crucial Role of NLRP3 Inflammasome in Viral Infection-Associated Fibrosing Interstitial Lung Diseases

2021 ◽  
Vol 22 (19) ◽  
pp. 10447
Author(s):  
Wiwin Is Effendi ◽  
Tatsuya Nagano
Keyword(s):  
Viral Infection ◽  
Nlrp3 Inflammasome ◽  
Lung Diseases ◽  
Alveolar Epithelium ◽  
Interstitial Lung Diseases ◽  
Molecular Signaling ◽  
Intrinsic Factors ◽  
Matrix Deposition ◽  
Age Related

Idiopathic pulmonary fibrosis (IPF), one of the most common fibrosing interstitial lung diseases (ILD), is a chronic-age-related respiratory disease that rises from repeated micro-injury of the alveolar epithelium. Environmental influences, intrinsic factors, genetic and epigenetic risk factors that lead to chronic inflammation might be implicated in the development of IPF. The exact triggers that initiate the fibrotic response in IPF remain enigmatic, but there is now increasing evidence supporting the role of chronic exposure of viral infection. During viral infection, activation of the NLRP3 inflammasome by integrating multiple cellular and molecular signaling implicates robust inflammation, fibroblast proliferation, activation of myofibroblast, matrix deposition, and aberrant epithelial-mesenchymal function. Overall, the crosstalk of the NLRP3 inflammasome and viruses can activate immune responses and inflammasome-associated molecules in the development, progression, and exacerbation of IPF.

scholarly journals Extracellular Vesicles in Pulmonary Fibrosis Models and Biological Fluids of Interstitial Lung Disease Patients: A Scoping Review

Life ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1401
Author(s):  
Miriana d’Alessandro ◽  
Laura Bergantini ◽  
Elena Bargagli ◽  
Silvia Vidal
Keyword(s):  
Pulmonary Fibrosis ◽  
Extracellular Vesicles ◽  
Scoping Review ◽  
Intercellular Communication ◽  
Lung Diseases ◽  
Biological Fluids ◽  
Interstitial Lung Diseases ◽  
Chronic Obstructive ◽  
Matrix Deposition

Introduction: Interstitial lung diseases (ILDs) are a heterogeneous group of diffuse parenchymal lung disorders characterized by the pathogenetic involvement of interstitium. Therefore, an elucidation of the etiology and pathogenesis as well as the identification of diagnostic and prognostic biomarkers of such diseases is more compelling than ever. It is of note that there is increasing evidence of the involvement of extracellular vesicles (EVs) in the pathogenesis of lung diseases including lung cancer, chronic obstructive pulmonary disease and pulmonary fibrosis. It has been speculated that EVs play a pivotal role as mediators of intercellular communication, as well as the highlighting of the role of EVs as co-operators in the development of lung diseases such as IPF. Methods: The present study aimed to carry out a systematic exploratory search of the literature (through the scoping review approach) to identify and systematize the main results of the pathogenetic role of EVs in pulmonary fibrosis models and biological fluids from ILD patients, including plasma, bronchoalveolar lavage (BAL) and sputum. Conclusion: Fibroblast-to-mesenchymal differentiation, collagen and extracellular matrix deposition are key mechanisms in the development and progression of IPF. EV-coupled miRNA are important modulators of biological processes in terms of intercellular communication as shown in pulmonary fibrosis models as well as biofluids. The helpfulness of EVs as diagnostic and theranostic markers is worth further investigation. The evolving potential of EVs to translate effective EV-based therapies into clinical practice is of growing interest, due to the urgent need for novel therapeutic strategies for IPF patients.

scholarly journals Reply to Wand et al.: Role of Transbronchial Cryobiopsy in Interstitial Lung Diseases: An Ongoing Tale

2020 ◽  
Vol 201 (2) ◽  
pp. 260-261
Author(s):  
Arnaud Bourdin ◽  
Carey M. Suehs ◽  
Thomas V. Colby ◽  
Isabelle Vachier ◽  
Nicolas Molinari ◽  
...  
Keyword(s):  
Lung Diseases ◽  
Interstitial Lung Diseases

scholarly journals Cellular Senescence in Lung Fibrosis

2021 ◽  
Vol 22 (13) ◽  
pp. 7012
Author(s):  
Fernanda Hernandez-Gonzalez ◽  
Rosa Faner ◽  
Mauricio Rojas ◽  
Alvar Agustí ◽  
Manuel Serrano ◽  
...  
Keyword(s):  
Cell Fate ◽  
Cellular Senescence ◽  
Lung Fibrosis ◽  
Lung Diseases ◽  
Physiological Mechanism ◽  
Lung Parenchyma ◽  
Scar Tissue ◽  
Interstitial Lung Diseases ◽  
Cellular Damage ◽  
Age Related

Fibrosing interstitial lung diseases (ILDs) are chronic and ultimately fatal age-related lung diseases characterized by the progressive and irreversible accumulation of scar tissue in the lung parenchyma. Over the past years, significant progress has been made in our incomplete understanding of the pathobiology underlying fibrosing ILDs, in particular in relation to diverse age-related processes and cell perturbations that seem to lead to maladaptation to stress and susceptibility to lung fibrosis. Growing evidence suggests that a specific biological phenomenon known as cellular senescence plays an important role in the initiation and progression of pulmonary fibrosis. Cellular senescence is defined as a cell fate decision caused by the accumulation of unrepairable cellular damage and is characterized by an abundant pro-inflammatory and pro-fibrotic secretome. The senescence response has been widely recognized as a beneficial physiological mechanism during development and in tumour suppression. However, recent evidence strengthens the idea that it also drives degenerative processes such as lung fibrosis, most likely by promoting molecular and cellular changes in chronic fibrosing processes. Here, we review how cellular senescence may contribute to lung fibrosis pathobiology, and we highlight current and emerging therapeutic approaches to treat fibrosing ILDs by targeting cellular senescence.

scholarly journals The NLRP3 Inflammasome as a Critical Actor in the Inflammaging Process

Cells ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1552
Author(s):  
Maria Sebastian-Valverde ◽  
Giulio M. Pasinetti
Keyword(s):  
Nlrp3 Inflammasome ◽  
Low Grade ◽  
Cellular Mechanisms ◽  
Pyrin Domain ◽  
Human Lifespan ◽  
Age Related ◽  
Inflammatory State ◽  
Chronic Activation ◽  
Receptor Family

As a consequence of the considerable increase in the human lifespan over the last century, we are experiencing the appearance and impact of new age-related diseases. The causal relationships between aging and an enhanced susceptibility of suffering from a broad spectrum of diseases need to be better understood. However, one specific shared feature seems to be of capital relevance for most of these conditions: the low-grade chronic inflammatory state inherently associated with aging, i.e., inflammaging. Here, we review the molecular and cellular mechanisms that link aging and inflammaging, focusing on the role of the innate immunity and more concretely on the nucleotide-binding oligomerization domain (NOD)-like receptor family pyrin domain containing 3 (NLRP3) inflammasome, as well as how the chronic activation of this inflammasome has a detrimental effect on different age-related disorders.

The Role of Induced Sputum in Amiodarone-Associated Interstitial Lung Diseases

Cardiology ◽  
2006 ◽  
Vol 108 (4) ◽  
pp. 223-227 ◽  
Author(s):  
Elizabeth Fireman ◽  
Ian Topilsky ◽  
Sami Viskin ◽  
Israel E. Priel
Keyword(s):  
Lung Diseases ◽  
Interstitial Lung Diseases ◽  
Induced Sputum

scholarly journals Extended Exhaled Nitric Oxide Analysis in Interstitial Lung Diseases: A Systematic Review

2020 ◽  
Vol 21 (17) ◽  
pp. 6187
Author(s):  
Paolo Cameli ◽  
Elena Bargagli ◽  
Laura Bergantini ◽  
Miriana d’Alessandro ◽  
Maria Pieroni ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Lung Diseases ◽  
Interstitial Lung Diseases ◽  
Exhaled Nitric Oxide ◽  
Inhalation Therapy ◽  
Asthmatic Patients ◽  
Promising Tool ◽  
Multiple Flows ◽  
Published Evidence

Fractional exhaled nitric oxide (FeNO) is a well-known and widely accepted biomarker of airways inflammation that can be useful in the therapeutic management, and adherence to inhalation therapy control, in asthmatic patients. However, the multiple-flows assessment of FeNO can provide a reliable measurement of bronchial and alveolar production of NO, supporting its potential value as biomarker also in peripheral lung diseases, such as interstitial lung diseases (ILD). In this review, we first discuss the role of NO in the pathobiology of lung fibrosis and the technique currently approved for the measurement of maximum bronchial flux of NO (J’awNO) and alveolar concentration of NO (CaNO). We systematically report the published evidence regarding extended FeNO analysis in the management of patients with different ILDs, focusing on its potential role in differential diagnosis, prognostic evaluation and severity assessment of disease. The few available data concerning extended FeNO analysis, and the most common comorbidities of ILD, are explored too. In conclusion, multiple-flows FeNO analysis, and CaNO in particular, appears to be a promising tool to be implemented in the diagnostic and prognostic pathways of patients affected with ILDs.

scholarly journals Smoking and interstitial lung diseases

2015 ◽  
Vol 24 (137) ◽  
pp. 428-435 ◽  
Author(s):  
George A. Margaritopoulos ◽  
Eirini Vasarmidi ◽  
Joseph Jacob ◽  
Athol U. Wells ◽  
Katerina M. Antoniou
Keyword(s):  
Lung Cancer ◽  
Chronic Obstructive Pulmonary Disease ◽  
Langerhans Cell Histiocytosis ◽  
Lung Diseases ◽  
Interstitial Lung Diseases ◽  
Lung Damage ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Pulmonary Langerhans Cell Histiocytosis

For many years has been well known that smoking could cause lung damage. Chronic obstructive pulmonary disease and lung cancer have been the two most common smoking-related lung diseases. In the recent years, attention has also focused on the role of smoking in the development of interstitial lung diseases (ILDs). Indeed, there are three diseases, namely respiratory bronchiolitis-associated ILD, desquamative interstitial pneumonia and pulmonary Langerhans cell histiocytosis, that are currently considered aetiologically linked to smoking and a few others which are more likely to develop in smokers. Here, we aim to focus on the most recent findings regarding the role of smoking in the pathogenesis and clinical behaviour of ILDs.

scholarly journals Questions of ethical regulation of immunobiological therapy of some occupational lung diseases

2021 ◽  
Vol 38 (3) ◽  
pp. 131-140
Author(s):  
L. A. Shpagina ◽  
L. A. Panacheva ◽  
E. V. Zolotukhina
Keyword(s):  
Lung Diseases ◽  
Occupational Diseases ◽  
Legal Regulation ◽  
Interstitial Lung Diseases ◽  
Production Factors ◽  
High Prevalence ◽  
Medical Documents ◽  
Occupational Lung Diseases ◽  
Medical Examinations

Objective. Taking into account a high prevalence of occupational pathology associated with the exposure of industrial aerosols, to analyze the principles of therapy used for patients with these diseases. Materials and methods. The regulating medical documents, the data of preventive medical examinations as well as the principles of therapy applied for patients with occupational diseases, which are presented in scientific literarure, are analyzed. Results. The role of harmful production factors in the formation of pneumoconiosis and alveolitis, which join the group of interstitial lung diseases (ILD), has been proved. The outcome of these occupational diseases is fibrosing alveolitis with the development of diffuse pulmonary fibrosis. In the treatment of ILD, immunobiological drugs (IBD) are used to suppress the immune processes selectively affecting the monoclonal antibodies, blocking of which interrupts inflammation and in 90 % of cases stops the further development of the disease. Conclusions. The use of immunobiological drugs in clinical practice should be carried out within the framework of ethical and legal regulation between the patient and the doctor.

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