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Updated: Dec 27, 2025
In vivo Evaluation of Mucociliary Clearance in Mice
Published on: December 18, 2020
MIP-T3 Expression Associated with Defects of Ciliogenesis in Airway of COPD Patients
Wen-Jun Wang1, Shi-Fang Yang1, Zhi-Rui Gao2
1Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangdong Provincial Geriatrics Institute, First Clinical Medicine Institute of South China University of Technology, Guangzhou, Guangdong, China.
Abstract:
Introduction. Some studies have found that cilia were shorter in COPD smokers than in nonsmokers or healthy smokers. However, the structural abnormalities of cilia and the cause of such abnormalities in COPD patients still remain unknown. Tumor necrosis factor alpha receptor 3 interacting protein 1 (MIP-T3) may play an important role in the progress of ciliary protein transporting.
Objectives:
This study aimed at exploring the dominated structural abnormalities of cilia and the involvement of MIP-T3 in the pathogenesis of cilia of COPD patients.
Methods:
Patients who accepted pulmonary lobectomy were divided into 3 groups: the chronic obstructive pulmonary disease (COPD) smoker group, the healthy smoker group, and the nonsmoker group, according to smoking history and pulmonary function. The ultrastructure of cilia and the percentage of abnormal cilia were analyzed using a transmission electron microscope. Real-time PCR, immunohistochemical staining, and western blotting in bronchial epithelium were used to determine MIP-T3 mRNA and protein expression. The relationship between the percentage of abnormal cilia and lung function and MIP-T3 protein expression was analyzed.
Results:
Patients in the COPD smoker group had increased percentage of abnormal cilia comparing to both the healthy smoker group and the nonsmoker group (both P values <0.05). MIP-T3 expression was significantly declined in the COPD smoker group (P values <0.05). MIP-T3 expression was significantly declined in the COPD smoker group (P values <0.05). MIP-T3 expression was significantly declined in the COPD smoker group (P values <0.05). MIP-T3 expression was significantly declined in the COPD smoker group (.
Conclusions:
Our results suggested that the abnormal ciliary ultrastructure, which was common in COPD patients, might be due to MIP-T3 downregulation.
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