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Related Concept Videos

Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Chronic Obstructive Pulmonary Disease II: Emphysema01:23

Chronic Obstructive Pulmonary Disease II: Emphysema

Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
Chronic Obstructive Pulmonary Disease I: Introduction01:23

Chronic Obstructive Pulmonary Disease I: Introduction

Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
Chronic Obstructive Pulmonary Disease01:24

Chronic Obstructive Pulmonary Disease

COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Chronic Obstructive Pulmonary Disease-I: Introduction01:20

Chronic Obstructive Pulmonary Disease-I: Introduction

Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.

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Related Experiment Video

Updated: Jul 6, 2026

Flow Cytometric Analysis for Identification of the Innate and Adaptive Immune Cells of Murine Lung
09:57

Flow Cytometric Analysis for Identification of the Innate and Adaptive Immune Cells of Murine Lung

Published on: November 16, 2021

Killer cells in chronic obstructive pulmonary disease.

Lucy Fairclough1, Richard A Urbanowicz, Jonathan Corne

  • 1COPD Research Group, Institute of Infection, Immunity and Inflammation, The University of Nottingham, Nottingham NG7 2RD, UK. lucy.fairclough@nottingham.ac.uk

Clinical Science (London, England : 1979)
|March 14, 2008
PubMed
Summary

Chronic obstructive pulmonary disease (COPD) involves progressive airflow limitation. This review examines how CD8+ T-lymphocytes, NK cells, and NKT cells contribute to COPD pathogenesis through direct cell damage or cytokine release.

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Advanced Imaging of Lung Homing Human Lymphocytes in an Experimental In Vivo Model of Allergic Inflammation Based on Light-sheet Microscopy
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Advanced Imaging of Lung Homing Human Lymphocytes in an Experimental In Vivo Model of Allergic Inflammation Based on Light-sheet Microscopy

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Flow Cytometric Analysis for Identification of the Innate and Adaptive Immune Cells of Murine Lung
09:57

Flow Cytometric Analysis for Identification of the Innate and Adaptive Immune Cells of Murine Lung

Published on: November 16, 2021

Advanced Imaging of Lung Homing Human Lymphocytes in an Experimental In Vivo Model of Allergic Inflammation Based on Light-sheet Microscopy
10:39

Advanced Imaging of Lung Homing Human Lymphocytes in an Experimental In Vivo Model of Allergic Inflammation Based on Light-sheet Microscopy

Published on: April 16, 2019

Area of Science:

  • Immunology
  • Pulmonology

Background:

  • Chronic obstructive pulmonary disease (COPD) is a progressive, irreversible airflow limitation disease with increasing global mortality.
  • Pathological hallmarks include emphysema, chronic bronchitis, and respiratory bronchiolitis, driven by immune system interactions.

Purpose of the Study:

  • To review the role of specific killer immune cells in the pathogenesis of COPD.
  • To explore the mechanisms by which these cells contribute to lung tissue damage in COPD.

Main Methods:

  • Literature review focusing on CD8(+) T-lymphocytes, NK cells, and NKT cells in COPD.
  • Analysis of mechanisms including direct cytotoxicity, apoptosis, and cytokine release.

Main Results:

  • CD8(+) T-lymphocytes, NK cells, and NKT cells are implicated in COPD pathogenesis.
  • These cells can induce lung tissue damage via perforin/granzyme-mediated cytotoxicity, FasL-induced apoptosis, and cytokine/chemokine release.

Conclusions:

  • Killer cells are significant contributors to the complex immune interactions underlying COPD.
  • Understanding these cellular roles may offer new therapeutic targets for COPD management.