Evaluation of Innate Immune Mediators Related to Respiratory Viruses in the Lung of Stable COPD Patients

Journal of Clinical Medicine
Silvestro E D'AnnaAntonino Di Stefano

Abstract

Background: Little is known about the innate immune response to viral infections in stable Chronic Obstructive Pulmonary Disease (COPD). Objectives: To evaluate the innate immune mediators related to respiratory viruses in the bronchial biopsies and lung parenchyma of stable COPD patients. Methods: We evaluated the immunohistochemical (IHC) expression of Toll-like receptors 3-7-8-9 (TLR-3-7-8-9), TIR domain-containing adaptor inducing IFNβ (TRIF), Interferon regulatory factor 3 (IRF3), Phospho interferon regulatory factor 3  ( pIRF3), Interferon regulatory factor 7 (IRF7), Phospho interferon regulatory factor 7 (pIRF7), retinoic acid-inducible gene I (RIG1), melanoma differentiation-associated protein 5 (MDA5), Probable ATP-dependent RNA helicase DHX58 ( LGP2), Mitochondrial antiviral-signaling protein (MAVS), Stimulator of interferon genes (STING), DNA-dependent activator of IFN regulatory factors (DAI), forkhead box protein A3(FOXA3), Interferon alfa (IFNα), and Interferon beta (IFNβ) in the bronchial mucosa of patients with mild/moderate (n = 16), severe/very severe (n = 18) stable COPD, control smokers (CS) (n = 12), and control non-smokers (CNS) (n = 12). We performed similar IHC analyses in peripheral lung from COPD ...Continue Reading

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Citations

Oct 1, 2020·Annals of Medicine·Silvestro Ennio D'AnnaAntonino Di Stefano

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Methods Mentioned

BETA
bronchoalveolar lavage
biopsy
Biopsies
light microscopy
ELISA
PCR
flow cytometry

Software Mentioned

Gene Q Series
Rotor Gene Q
Rotor
Stat View SE Graphics

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