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Hedgehog signaling modulates cigarette‑induced COPD development

  • Authors:
    • Fang Ying Lu
    • Rong Chen
    • Min Zhou
    • Yi Guo
  • View Affiliations / Copyright

    Affiliations: Department of Respiratory and Critical Care Medicine, Shanghai Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
    Copyright: © Lu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 729
    |
    Published online on: May 4, 2021
       https://doi.org/10.3892/etm.2021.10161
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Abstract

Hedgehog (Hh) signaling is involved in early embryogenesis and maintains quiescence in the adult lungs. The interruption of Hh signaling may lead to the development of chronic obstructive pulmonary disease (COPD). The current study aimed to assess whether the Hh pathway affects cigarette‑induced emphysema and airway inflammation by regulating inflammatory cytokines. C57BL/6J mice were randomized into control, cigarette smoke (CS) or CS + cyclopamine (CSC) groups. Control mice were exposed to normal room air, CS mice were exposed to tobacco smoke and CSC mice were exposed to CS and received cyclopamine treatment. Histopathological examination of lung tissues was performed, and the expression of sonic hedgehog (HH), glioma‑associated oncogene homolog 1 (Gli1), hedgehog‑interacting protein (HIP) and several inflammatory mediators (intracellular adhesion molecule‑1, IL‑6, IL‑8 and TNF‑α) were compared using reverse transcription‑quantitative PCR and western blotting. The emphysema of lung tissues by histopathological examination demonstrated partial amelioration in the CSC group compared with that in the CS group. Additionally, expression levels of SHH, Gli1 and inflammatory mediators were significantly higher in the CS group compared with the control group but were significantly decreased in the CSC group. The expression of HIP was decreased in the CS group, but significantly increased in the CSC group. Hh signaling may serve an important role in cigarette‑induced emphysema and airway inflammation by regulating inflammatory cytokines in animal models. Therefore, diminishing the activation of the Hh signal may serve as a novel therapeutic strategy for patients suffering from smoking‑related COPD.
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Copy and paste a formatted citation
Spandidos Publications style
Lu FY, Chen R, Zhou M and Guo Y: Hedgehog signaling modulates cigarette‑induced COPD development. Exp Ther Med 22: 729, 2021.
APA
Lu, F.Y., Chen, R., Zhou, M., & Guo, Y. (2021). Hedgehog signaling modulates cigarette‑induced COPD development. Experimental and Therapeutic Medicine, 22, 729. https://doi.org/10.3892/etm.2021.10161
MLA
Lu, F. Y., Chen, R., Zhou, M., Guo, Y."Hedgehog signaling modulates cigarette‑induced COPD development". Experimental and Therapeutic Medicine 22.1 (2021): 729.
Chicago
Lu, F. Y., Chen, R., Zhou, M., Guo, Y."Hedgehog signaling modulates cigarette‑induced COPD development". Experimental and Therapeutic Medicine 22, no. 1 (2021): 729. https://doi.org/10.3892/etm.2021.10161
Copy and paste a formatted citation
x
Spandidos Publications style
Lu FY, Chen R, Zhou M and Guo Y: Hedgehog signaling modulates cigarette‑induced COPD development. Exp Ther Med 22: 729, 2021.
APA
Lu, F.Y., Chen, R., Zhou, M., & Guo, Y. (2021). Hedgehog signaling modulates cigarette‑induced COPD development. Experimental and Therapeutic Medicine, 22, 729. https://doi.org/10.3892/etm.2021.10161
MLA
Lu, F. Y., Chen, R., Zhou, M., Guo, Y."Hedgehog signaling modulates cigarette‑induced COPD development". Experimental and Therapeutic Medicine 22.1 (2021): 729.
Chicago
Lu, F. Y., Chen, R., Zhou, M., Guo, Y."Hedgehog signaling modulates cigarette‑induced COPD development". Experimental and Therapeutic Medicine 22, no. 1 (2021): 729. https://doi.org/10.3892/etm.2021.10161
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