Related Experiment Videos
Emerging role of SIRT1 in asthma and COPD from molecular mechanisms to translational therapy
Muhammad Wasim1, Rabia Parveen1, Riling Chen2
1Maternal and Children's Health Research Institute, Shunde Women and Children's Hospital, Guangdong Medical University, Foshan 528300, China.
Abstract:
Asthma and chronic obstructive pulmonary disease (COPD) are chronic respiratory disorders with distinct pathological mechanisms. Even advancements in conventional therapies, the treatment of these diseases remains challenging due to their complex pathophysiology and limited efficacy of current anti-inflammatory treatments. SIRT1, an NAD+-dependent deacetylase, exerting protective effects by inhibiting NF-κB and STAT3, activating Nrf2 and FOXO3, and suppressing TGF-β/Smad. In asthma, SIRT1 attenuates Th2 inflammation, mucus hypersecretion, and airway smooth muscle proliferation; in COPD, it reduces neutrophilic inflammation, alveolar senescence, and protease/antiprotease imbalance. Shared benefits include mitigation of oxidative stress, mitochondrial dysfunction, and extracellular matrix remodeling. However, clinical translation faces critical barriers: cell type-specific SIRT1 effects, pharmacokinetic limitations of current activators, and lack of biomarker-guided strategies. This review examines challenges, compares SIRT1's divergent roles, and evaluates chronotherapy, biomarker-guided selection, and SIRT1 activators. Integration of current evidence and knowledge gaps reveals pathways to personalized SIRT1-targeted therapies for obstructive airway diseases.
Insights
Sirtuin 1 (SIRT1) shows promise for treating asthma and chronic obstructive pulmonary disease (COPD) by reducing inflammation and cellular damage. Personalized therapies targeting SIRT1 offer a new avenue for managing these respiratory diseases.
Area of Science:
- Respiratory Medicine
- Molecular Biology
- Pharmacology
Background:
- Asthma and COPD are complex chronic respiratory diseases with challenging treatment landscapes.
- Current anti-inflammatory therapies have limited efficacy due to intricate pathophysiology.
- Sirtuin 1 (SIRT1) is a key deacetylase with potential therapeutic roles in inflammation and cellular stress.
Purpose of the Study:
- To review the dual role of SIRT1 in asthma and COPD.
- To identify challenges and opportunities for clinical translation of SIRT1-targeted therapies.
- To explore strategies for personalized treatment approaches in obstructive airway diseases.
Main Methods:
- Literature review of SIRT1's molecular mechanisms in respiratory diseases.
- Comparison of SIRT1's divergent effects in asthma versus COPD.
- Evaluation of potential therapeutic strategies including chronotherapy and biomarker-guided selection.
Main Results:
- SIRT1 mitigates key pathological features in both asthma (Th2 inflammation, mucus) and COPD (neutrophilic inflammation, senescence).
- Shared benefits of SIRT1 include reduced oxidative stress, improved mitochondrial function, and controlled extracellular matrix remodeling.
- Clinical application is hindered by cell-specific SIRT1 actions, pharmacokinetic issues, and lack of biomarkers.
Conclusions:
- SIRT1 presents a promising therapeutic target for obstructive airway diseases.
- Overcoming barriers requires understanding cell-specific effects and developing targeted delivery systems.
- Personalized, biomarker-guided chronotherapy with SIRT1 activators may optimize treatment outcomes.
Related Concept Videos
Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Asthma I: Introduction
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Inflammation
COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
Asthma-I: Introduction