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The Potential of Receptor for Advanced Glycation End Products (RAGE) as a Therapeutic Target for Lung Associated
Tejinder Pal Khaket1, Sun Chul Kang1, Tapan Kumar Mukherjee2
1Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, Korea.
Abstract:
The receptor for advanced glycation end products (RAGE) is a multi-ligand pattern recognition receptor that is highly expressed in lung epithelial cells. It helps alveolar epithelial cells to maintain their morphology and specific architecture. However, in various pathophysiological conditions, pulmonary tissues express a supraphysiological level of RAGE and its ligands including advanced glycation end products, high mobility group box 1 proteins, and S100 proteins. On interaction with RAGE, these ligands stimulate downstream signaling that generates inflammation and oxidative stress leading to asthma, chronic obstructive pulmonary disease, lung cancers, idiopathic pulmonary fibrosis, acute lung injury, pneumonia, bronchopulmonary dysplasia, cystic fibrosis, and sepsis. Thus, pharmacological agents that can either suppress the production of RAGE or block its biological activity would offer promising therapeutic value against pathogenesis of the aforementioned lungassociated diseases. This review presents a comprehensive overview of the recent progress made in defining the functions of RAGE in lung-associated diseases.
Insights
The receptor for advanced glycation end products (RAGE) plays a key role in lung health. Blocking RAGE offers potential therapies for various lung diseases driven by inflammation and oxidative stress.
Area of Science:
- Pulmonary Medicine
- Immunology
- Cell Biology
Background:
- The receptor for advanced glycation end products (RAGE) is crucial for lung epithelial cell structure.
- Supraphysiological levels of RAGE and its ligands are implicated in lung diseases.
- RAGE activation triggers inflammation and oxidative stress.
Purpose of the Study:
- To review the functions of RAGE in lung-associated diseases.
- To highlight the therapeutic potential of targeting RAGE.
Main Methods:
- Literature review of RAGE's role in pulmonary pathophysiology.
- Analysis of RAGE signaling pathways in disease contexts.
Main Results:
- RAGE ligands (AGEs, HMGB1, S100 proteins) activate RAGE, promoting inflammation.
- RAGE dysregulation contributes to asthma, COPD, lung cancer, fibrosis, ALI, pneumonia, BPD, CF, and sepsis.
- Inhibition of RAGE presents a promising therapeutic strategy.
Conclusions:
- RAGE is a significant contributor to the pathogenesis of numerous lung diseases.
- Targeting RAGE offers a potential therapeutic avenue for treating inflammatory and fibrotic lung conditions.
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