Traditional Chinese Medicine for Airway Remodeling in Chronic Obstructive Pulmonary Disease: Mechanisms and Therapeutic Applications

Authors

  • Fei Wang Shaanxi University of Chinese Medicine, Xianyang, China Author
  • Jie Shi Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China Author
  • Yule Kou Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China Author
  • Xishu Tan Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China Author

DOI:

https://doi.org/10.70088/ds04f160

Keywords:

traditional Chinese medicine, chronic obstructive pulmonary disease, airway remodeling, mechanism, Chinese herbal medicine

Abstract

Airway remodeling is a major structural substrate of progressive and largely irreversible airflow limitation in chronic obstructive pulmonary disease (COPD). It arises from an interconnected pathological network involving chronic inflammation, oxidative stress, epithelial-mesenchymal transition (EMT), extracellular matrix (ECM) deposition, and fibrosis. Within traditional Chinese medicine (TCM) theory, COPD is commonly characterized by a pattern of "root deficiency and branch excess," particularly phlegm and blood stasis obstructing the Lung. TCM interventions are characterized by holistic regulation and multi-target, multi-pathway actions and may therefore have potential to delay airway remodeling. This review summarizes the principal morphological changes and molecular signaling mechanisms underlying airway remodeling in COPD, discusses the correspondence between TCM pathogenesis concepts and modern pathological processes, and reviews evidence on Chinese herbal formulas, and bioactive constituents, with emphasis on the TGF-β1/Smad, NF-κB, Nrf2/HO-1, and related signaling pathways. The strength and limitations of the current evidence are further appraised to provide a theoretical basis and research framework for target identification, optimization of integrated intervention strategies, and clinical translation of TCM approaches for COPD airway remodeling.

References

M. M. de Oca, R. Perez-Padilla, B. Celli et al., "The global burden of COPD: epidemiology and effect of prevention strategies," The Lancet. Respiratory Medicine, vol. 13, no. 8, pp. 709–724, 2025.

E. Boers, M. Barrett, J. G. Su et al., "Global burden of chronic obstructive pulmonary disease through 2050," JAMA Network Open, vol. 6, no. 12, p. e2346598, 2023.

Global Initiative for Chronic Obstructive Lung Disease, *Global strategy for the diagnosis, management, and prevention of chronic obstructive lung disease: 2026 GOLD report*, Geneva: GOLD, 2026. [Online]. Available: https://goldcopd.org/. Accessed: Jan. 15, 2026.

S. R. Cha, J. Jang, S. M. Park et al., "Cigarette smoke-induced respiratory response: insights into cellular processes and biomarkers," Antioxidants, vol. 12, no. 6, p. 1210, 2023.

K. L. Raby, C. Michaeloudes, J. Tonkin et al., "Mechanisms of airway epithelial injury and abnormal repair in asthma and COPD," Frontiers in Immunology, vol. 14, p. 1201658, 2023.

R. Shaykhiev, W. L. Zuo, I. Chao et al., "EGF shifts human airway basal cell fate toward a smoking-associated airway epithelial phenotype," Proceedings of the National Academy of Sciences of the United States of America, vol. 110, no. 29, pp. 12102–12107, 2013.

R. Kalluri and E. G. Neilson, "Epithelial-mesenchymal transition and its implications for fibrosis," Journal of Clinical Investigation, vol. 112, no. 12, pp. 1776–1784, 2003.

C. Qi, S. W. Sun, and X. Z. Xiong, "From COPD to lung cancer: mechanisms linking, diagnosis, treatment, and prognosis," International Journal of Chronic Obstructive Pulmonary Disease, vol. 17, pp. 2603–2621, 2022.

F. Yan, H. Gao, H. Zhao et al., "Roles of airway smooth muscle dysfunction in chronic obstructive pulmonary disease," Journal of Translational Medicine, vol. 16, no. 1, pp. 262–270, 2018.

T. Deng, Q. Huang, K. Lin et al., "Midkine-Notch2 pathway mediates excessive proliferation of airway smooth muscle cells in chronic obstructive lung disease," Frontiers in Pharmacology, vol. 13, p. 794952, 2022.

H. Kume, R. Yamada, Y. Sato et al., "Airway smooth muscle regulated by oxidative stress in COPD," Antioxidants, vol. 12, no. 1, pp. 142–162, 2023.

C. Michaeloudes, C. H. Kuo, G. Haji et al., "Metabolic re-patterning in COPD airway smooth muscle cells," European Respiratory Journal, vol. 50, no. 5, p. 1700202, 2017.

M. Karakioulaki, E. Papakonstantinou, and D. Stolz, "Extracellular matrix remodelling in COPD," European Respiratory Review, vol. 29, no. 158, p. 190124, 2020.

G. Liu, A. M. Philp, T. Corte et al., "Therapeutic targets in lung tissue remodelling and fibrosis," Pharmacology & Therapeutics, vol. 225, p. 107839, 2021.

E. Papakonstantinou, G. Karakiulakis, S. Batzios et al., "Acute exacerbations of COPD are associated with significant activation of matrix metalloproteinase 9 irrespectively of airway obstruction, emphysema and infection," Respiratory Research, vol. 16, no. 1, p. 78, 2015.

J. K. Burgess, T. Mauad, G. Tjin et al., "The extracellular matrix – the under-recognized element in lung disease?," Journal of Pathology, vol. 240, no. 4, pp. 397–409, 2016.

A. Saito, M. Horie, and T. Nagase, "TGF-β signaling in lung health and disease," International Journal of Molecular Sciences, vol. 19, no. 8, p. 2460, 2018.

D. R. Curran and L. Cohn, "Advances in mucous cell metaplasia," American Journal of Respiratory Cell and Molecular Biology, vol. 42, no. 3, pp. 268–275, 2010.

T. Fujisawa, S. Velichko, P. Thai et al., "Regulation of airway MUC5AC expression by IL-1β and IL-17A; the NF-κB paradigm," Journal of Immunology, vol. 183, no. 10, pp. 6236–6243, 2009.

T. Pincikova, H. Merikallio, I. Kotortsi et al., "Expression levels of MUC5AC and MUC5B in airway goblet cells are associated with traits of COPD and progression of chronic airflow limitation," International Journal of Molecular Sciences, vol. 25, no. 24, p. 13653, 2024.

G. Radicioni, A. Ceppe, A. A. Ford et al., "Airway mucin MUC5AC and MUC5B concentrations and the initiation and progression of chronic obstructive pulmonary disease: an analysis of the SPIROMICS cohort," The Lancet. Respiratory Medicine, vol. 9, no. 11, pp. 1241–1254, 2021.

S. K. Mettler, S. Sonavane, S. Grumley et al., "Airway-occluding mucus plugs and cause-specific mortality in chronic obstructive pulmonary disease," American Journal of Respiratory and Critical Care Medicine, vol. 209, no. 12, pp. 1508–1510, 2024.

A. Zanini, A. Chetta, M. Saetta et al., "Bronchial vascular remodelling in patients with COPD and its relationship with inhaled steroid treatment," Thorax, vol. 64, no. 12, pp. 1019–1024, 2009.

M. Ackermann, C. Werlein, E. Plucinski et al., "The role of vasculature and angiogenesis in respiratory diseases," Angiogenesis, vol. 27, no. 3, pp. 293–310, 2024.

X. Fu and F. Zhang, "Role of the HIF-1 signaling pathway in chronic obstructive pulmonary disease," Experimental and Therapeutic Medicine, vol. 16, no. 6, pp. 4553–4561, 2018.

Y. Zhang and C. B. Xu, "The roles of endothelin and its receptors in cigarette smoke-associated pulmonary hypertension with chronic lung disease," Pathology, Research and Practice, vol. 216, no. 9, p. 153083, 2020.

Z. Deng, T. Fan, C. Xiao et al., "TGF-β signaling in health, disease and therapeutics," Signal Transduction and Targeted Therapy, vol. 9, no. 1, pp. 61–100, 2024.

K. Kraik, M. Tota, J. Laska et al., "The role of transforming growth factor-β (TGF-β) in asthma and chronic obstructive pulmonary disease (COPD)," Cells, vol. 13, no. 15, p. 1271, 2024.

M. Schuliga, "NF-kappaB signaling in chronic inflammatory airway disease," Biomolecules, vol. 5, no. 3, pp. 1266–1283, 2015.

M. Mussbacher, M. Salzmann, C. Brostjan et al., "Cell type-specific roles of NF-κB linking inflammation and thrombosis," Frontiers in Immunology, vol. 10, p. 85, 2019.

C. Jia, M. Yang, G. Xiao et al., "ESL attenuates BLM-induced IPF in mice: dual mediation of the TLR4/NF-κB and TGF-β1/PI3K/akt/FOXO3a pathways," Phytomedicine, vol. 132, p. 155545, 2024.

M. L. Samulevich, L. E. Carman, and B. J. Aneskievich, "Critical analysis of cytoplasmic progression of inflammatory signaling suggests potential pharmacologic targets for wound healing and fibrotic disorders," Biomedicines, vol. 12, no. 12, p. 2723, 2024.

L. Wang, X. Chen, X. Li et al., "Developing a novel strategy for COPD therapy by targeting Nrf2 and metabolism reprogramming simultaneously," Free Radical Biology & Medicine, vol. 169, pp. 436–445, 2021.

K. Jomova, S. Y. Alomar, R. Valko et al., "Interplay of oxidative stress and antioxidant mechanisms in cancer development and progression," Archives of Toxicology, vol. 100, no. 1, pp. 27–73, 2026.

A. Boutten, D. Goven, E. Artaud-Macari et al., "NRF2 targeting: a promising therapeutic strategy in chronic obstructive pulmonary disease," Trends in Molecular Medicine, vol. 17, no. 7, pp. 363–371, 2011.

A. Anagnostis, E. Neofytou, N. Soulitzis et al., "Molecular profiling of EGFR family in chronic obstructive pulmonary disease: correlation with airway obstruction," European Journal of Clinical Investigation, vol. 43, no. 12, pp. 1294–1302, 2013.

P. Burgel and J. Nadel, "Roles of epidermal growth factor receptor activation in epithelial cell repair and mucin production in airway epithelium," Thorax, vol. 59, no. 11, pp. 992–996, 2004.

Y. Tabei and Y. Nakajima, "IL-1β-activated PI3K/AKT and MEK/ERK pathways coordinately promote induction of partial epithelial–mesenchymal transition," Cell Communication and Signaling, vol. 22, no. 1, p. 392, 2024.

L. Li, L. Qi, Z. Liang et al., "Transforming growth factor-β1 induces EMT by the transactivation of epidermal growth factor signaling through HA/CD44 in lung and breast cancer cells," International Journal of Molecular Medicine, vol. 36, no. 1, pp. 113–122, 2015.

K. H. Lee, J. Lee, J. Jeong et al., "Cigarette smoke extract enhances neutrophil elastase-induced IL-8 production via proteinase-activated receptor-2 upregulation in human bronchial epithelial cells," Experimental & Molecular Medicine, vol. 50, no. 7, p. 1–9, 2018.

K. H. Lee, C. H. Lee, J. Jeong et al., "Neutrophil elastase differentially regulates interleukin 8 (IL-8) and vascular endothelial growth factor (VEGF) production by cigarette smoke extract," Journal of Biological Chemistry, vol. 290, no. 47, pp. 28438–28445, 2015.

P. Strnad, N. G. McElvaney, and D. A. Lomas, "Alpha1-antitrypsin deficiency," New England Journal of Medicine, vol. 382, no. 15, pp. 1443–1455, 2020.

J. A. Voynow and M. Shinbashi, "Neutrophil elastase and chronic lung disease," Biomolecules, vol. 11, no. 8, p. 1065, 2021.

X. Yong, X. Luo, X. Chen et al., "Orchestrating inflammation: non-coding RNAs as master regulators of macrophage function in chronic obstructive pulmonary disease—an update," Frontiers in Immunology, vol. 16, p. 1679730, 2025.

N. Wang, H. Liang, and K. Zen, "Molecular mechanisms that influence the macrophage M1–M2 polarization balance," Frontiers in Immunology, vol. 5, p. 614, 2014.

S. Arora, K. Dev, B. Agarwal et al., "Macrophages: their role, activation and polarization in pulmonary diseases," Immunobiology, vol. 223, no. 4–5, pp. 383–396, 2018.

R. Wang, Z. Zhu, S. Peng et al., "Exosome microRNA-125a-5p derived from epithelium promotes M1 macrophage polarization by targeting IL1RN in chronic obstructive pulmonary disease," International Immunopharmacology, vol. 137, p. 112466, 2024.

H. Yoshikawa, T. Sato, K. Horikoshi et al., "miR-146a regulates emphysema formation and abnormal inflammation in the lungs of two mouse models," American Journal of Physiology Lung Cellular and Molecular Physiology, vol. 326, no. 1, pp. L98–L110, 2024.

P. Jiao, X. P. Wang, Z. M. Luoreng et al., "miR-223: an effective regulator of immune cell differentiation and inflammation," International Journal of Biological Sciences, vol. 17, no. 9, pp. 2308–2322, 2021.

W. Wang, N. Yang, Y. H. Yang et al., "Non-coding RNAs: master regulators of inflammasomes in inflammatory diseases," Journal of Inflammation Research, vol. 14, pp. 5023–5050, 2021.

H. Guo, L. Fei, H. Yu et al., "Exosome-encapsulated lncRNA HOTAIRM1 contributes to PM2.5-aggravated COPD airway remodeling by enhancing myofibroblast differentiation," Science China. LIFE Sciences, vol. 67, no. 5, pp. 970–985, 2024.

L. Wang, Q. Yu, J. Xiao et al., "Cigarette smoke extract-treated mouse airway epithelial cells-derived exosomal LncRNA MEG3 promotes M1 macrophage polarization and pyroptosis in chronic obstructive pulmonary disease by upregulating TREM-1 via m6A methylation," Immune Network, vol. 24, no. 2, p. e3, 2024.

S. Q. Yao, L. Zhou, T. Sun et al., "Prevention and treatment of stable COPD with Lung-Kidney qi deficiency using Bufei Decoction combined with Shenha Powder based on syndrome differentiation and Fu-Jiu acupoint application," Chinese Journal of Experimental Traditional Medical Formulae, vol. 26, no. 7, pp. 92–97, 2020.

W. M. Xing and Y. Z. Chen, "Clinical efficacy of Erchen Decoction combined with Sanzi Yangqin Decoction and bromhexine hydrochloride in chronic obstructive pulmonary disease and its effects on airway remodeling," Anhui Medical and Pharmaceutical Journal, vol. 25, no. 6, pp. 1251–1255, 2021.

Z. P. Bai, Y. Liu, X. N. Tan et al., "Effects of Jinshui Liujun Decoction on mucin 5AC and aquaporin 5 expression in lung tissue of rats with COPD and airway mucus hypersecretion," Chinese Journal of Information on Traditional Chinese Medicine, vol. 26, no. 8, pp. 54–59, 2019.

T. F. He, A. N. Zhang, and C. X. Zhang, "Mechanism by which Bufei Nashen Pills regulate PI3K/AKT signaling-mediated MMP/TIMP balance to reduce extracellular matrix deposition in chronic obstructive pulmonary disease," China Journal of Chinese Materia Medica, vol. 51, no. 8, pp. 2335–2348, 2026.

Q. Y. Jiang, Y. Q. Ye, L. C. T. Jiao et al., "Mechanism by which Qibai Pingfei Capsules regulate the HIF-1α/COX-2 pathway to improve inflammation in chronic obstructive pulmonary disease: network target analysis and molecular dynamics simulation," China Journal of Chinese Materia Medica, vol. 50, no. 20, pp. 5851–5863, 2025.

L. Fang, C. B. Wang, J. Q. Wang et al., "Effects of Qibai Pingfei Capsules on Rho kinase expression in rats with pulmonary vascular remodeling and the COPD syndrome of phlegm and blood stasis obstructing the Lung," China Journal of Traditional Chinese Medicine and Pharmacy, vol. 31, no. 1, pp. 229–232, 2016.

R. F. Xie, C. Y. Huang, M. M. Li et al., "Effects of Buyuan Decoction on airway remodeling in COPD rats through regulation of the NLRP3 inflammasome signaling pathway," China Journal of Traditional Chinese Medicine and Pharmacy, vol. 38, no. 11, pp. 5459–5463, 2023.

Y. Li, A. H. Zhao, Z. Y. Bian et al., "Research progress on Chinese medicinal polysaccharides against chronic obstructive pulmonary disease," Chinese Traditional and Herbal Drugs, vol. 56, no. 7, pp. 2604–2616, 2025.

J. Wu and X. Z. Yao, "Anti-inflammatory effects of Astragalus polysaccharide and inhibition of the TLR4/NF-κB pathway in the inflammatory response of COPD," Journal of Xi'an Jiaotong University (Medical Sciences), vol. 39, no. 5, pp. 760–764, 2018.

W. W. Yu, X. Y. Huang, and Y. Zhang, "Effects of Astragalus polysaccharide on MMP-9 and TIMP-1 expression in lung tissue of rats with chronic obstructive pulmonary disease," China Medical Herald, vol. 9, no. 2, pp. 25–27, 2012.

W. J. Wang, X. M. Liu, and G. Q. Zhang, "Effects of Perilla leaf polysaccharide on airway inflammation and airway remodeling in COPD rats through the Wnt/PCP pathway," Guiding Journal of Traditional Chinese Medicine and Pharmacy, vol. 27, no. 10, pp. 37–41, 2021.

L. Zhang, J. L. Li, Y. Gao et al., "Research progress on the pharmacological actions and mechanisms of icaritin," Chinese Traditional and Herbal Drugs, vol. 55, no. 17, pp. 6069–6077, 2024.

Q. Li, H. Zhang, X. Yan et al., "Up-regulation of PPAR-γ involved in the therapeutic effect of icariin on cigarette smoke-induced inflammation," Pulmonary Pharmacology & Therapeutics, vol. 79, p. 102197, 2023.

L. L. Zhang, G. L. Xu, and G. Y. Wang, "Therapeutic effects of icariin on chronic obstructive pulmonary disease," China's Naturopathy, vol. 34, no. 7, pp. 119–122, 2026.

X. Tang, H. Nian, X. Li et al., "Effects of the combined extracts of herba epimedii and fructus ligustrilucidi on airway remodeling in the asthmatic rats with the treatment of budesonide," BMC Complementary and Alternative Medicine, vol. 17, p. 380, 2017.

X. Chang, X. H. Cheng, and L. Cao, "Stigmasterol from Coix seed improves lung injury in COPD through the PPARγ-metabolic reprogramming-M2 polarization axis," Journal of Army Medical University, vol. 48, no. 3, pp. 317–324, 2026.

H. R. Lin, N. Xu, X. Q. Tang et al., "Mechanism of Datura flower in improving chronic obstructive pulmonary disease based on network pharmacology and experimental validation," Chinese Journal of Experimental Traditional Medical Formulae, vol. 31, no. 10, pp. 1–15, 2025.

L. Chu, S. Q. Zhu, and Z. X. Yang, "Material basis and mechanism of processed Arisaema in the treatment of chronic obstructive pulmonary disease based on animal experiments, UPLC Q-Exactive Orbitrap MS, and network pharmacology," China Journal of Chinese Materia Medica, vol. 50, no. 7, pp. 1792–1802, 2025.

Downloads

Published

28 September 2026

Issue

Section

Article

How to Cite

Wang, F. (2026) “Traditional Chinese Medicine for Airway Remodeling in Chronic Obstructive Pulmonary Disease: Mechanisms and Therapeutic Applications”, Medicine Insights, 3(4), pp. 53–65. doi:10.70088/ds04f160.