Effect of Pharmacologic Agents on Ciliary Beat Frequency (CBF) of Nasal Epithelial Cell Cilia (ECC) in Chronic Obstructive Pulmonary Disease (COPD).

2009 ◽  
Author(s):  
A Yaghi ◽  
A Zaman ◽  
G Cox ◽  
M Dolovich
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Epithelial Cell ◽  
Pulmonary Disease ◽  
Beat Frequency ◽  
Ciliary Beat Frequency ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Nasal Epithelial Cell ◽  
Pharmacologic Agents ◽  
Ciliary Beat

scholarly journals The Potential Role and Regulatory Mechanisms of MUC5AC in Chronic Obstructive Pulmonary Disease

Molecules ◽  
2020 ◽  
Vol 25 (19) ◽  
pp. 4437 ◽  
Author(s):  
Jingyuan Li ◽  
Zuguang Ye
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Signaling Pathways ◽  
Pulmonary Disease ◽  
Beat Frequency ◽  
Ciliary Beat Frequency ◽  
Chronic Obstructive ◽  
High Morbidity ◽  
Obstructive Pulmonary Disease ◽  
Mucus Hypersecretion ◽  
Airway Mucus

Chronic obstructive pulmonary disease (COPD) is associated with high morbidity and mortality globally. Studies show that airway mucus hypersecretion strongly compromises lung function, leading to frequent hospitalization and mortality, highlighting an urgent need for effective COPD treatments. MUC5AC is known to contribute to severe muco-obstructive lung diseases, worsening COPD pathogenesis. Various pathways are implicated in the aberrant MUC5AC production and secretion MUC5AC. These include signaling pathways associated with mucus-secreting cell differentiation [nuclear factor-κB (NF-κB)and IL-13-STAT6- SAM pointed domain containing E26 transformation-specific transcription factor (SPDEF), as well as epithelial sodium channel (ENaC) and cystic fibrosis transmembrane conductance regulator (CFTR)], and signaling pathways related to mucus transport and excretion-ciliary beat frequency (CBF). Various inhibitors of mucus hypersecretion are in clinical use but have had limited benefits against COPD. Thus, novel therapies targeting airway mucus hypersecretion should be developed for effective management of muco-obstructive lung disease. Here, we systematically review the mechanisms and pathogenesis of airway mucus hypersecretion, with emphasis on multi-target and multi-link intervention strategies for the elucidation of novel inhibitors of airway mucus hypersecretion.

scholarly journals The Potential Role and Regulatory Mechanisms of MUC5AC in Chronic Obstructive Pulmonary Disease

2020 ◽  
Author(s):  
Jingyuan Li ◽  
Zuguang Ye
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Signaling Pathways ◽  
Pulmonary Disease ◽  
Beat Frequency ◽  
Ciliary Beat Frequency ◽  
Chronic Obstructive ◽  
High Morbidity ◽  
Obstructive Pulmonary Disease ◽  
Mucus Hypersecretion ◽  
Airway Mucus

Chronic obstructive pulmonary disease (COPD) is associated with high morbidity and mortality globally. Studies show that airway mucus hypersecretion strongly compromises lung function, leading to frequent hospitalization and mortality, highlighting an urgent need for effective COPD treatments. MUC5AC is known to contribute to severe muco-obstructive lung diseases, worsening COPD pathogenesis. Various pathways are implicated in the aberrant MUC5AC production and secretion MUC5AC. These include signaling pathways associated with mucus-secreting cell differentiation [ nuclear factor-κB (NF-кB)and IL-13-STAT6- SAM pointed domain containing E26 transformation-specific transcription factor (SPDEF), as well as epithelial sodium channel (ENaC) and cystic fibrosis transmembrane conductance regulator (CFTR)], and signaling pathways related to mucus transport and excretion-ciliary beat frequency (CBF). Various inhibitors of mucus hypersecretion are in clinical use but have had limited benefits against COPD. Thus, novel therapies targeting airway mucus hypersecretion should be developed for effective management of muco-obstructive lung disease. Here, we systematically review the mechanisms and pathogenesis of airway mucus hypersecretion, with emphasis on multi-target and multi-link intervention strategies for the elucidation of novel inhibitors of airway mucus hypersecretion.

scholarly journals Impairment of nasal mucociliary clearance in former smokers with stable chronic obstructive pulmonary disease relates to the presence of a chronic bronchitis phenotype

2011 ◽  
Vol 49 (4) ◽  
pp. 397-406
Author(s):  
V. Koblizek ◽  
M. Tomsova ◽  
E. Cermakova ◽  
P. Papousek ◽  
S. Pracharova ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Chronic Bronchitis ◽  
Pulmonary Disease ◽  
Mucociliary Clearance ◽  
Beat Frequency ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients ◽  
Nasal Mucociliary Clearance ◽  
Ciliary Beat

Background: Associations between nasal and bronchial impairment have been repeatedly described in chronic obstructive pulmonary disease (COPD), whereas nasal mucociliary clearance (MCC) in COPD patients is not yet fully understood. We studied nasal MCC parameters in COPD patients and compared them with healthy adults (HA) and with cystic fibrosis (CF) patients with compromised MCC. Methodology: An observational study of 98 COPD ex-smokers and subjects from control groups evaluated for nasal MCC time (NMCCt) and by digital video microscopy of nasal mucosa recording ciliary beat frequency (CBF) and ciliary beat pattern. Results: The NMCCt was decreased in HA compared to those with COPD and decreased in those with COPD compared to those with CF. CBF in COPD was lower compared to HA. The index of ciliary dyskinesia in COPD patients differed from HA. We detected higher NMCCt and lower nasal CBF in patients with chronic bronchitis phenotype (CB) compared to non-CB patients. Conclusions: We confirmed the presence of impaired nasal MCC in COPD ex-smokers. These impairments were apparent predominantly in the CB phenotype.

scholarly journals Chronic Obstructive Pulmonary Disease Combined With Interstitial Lung Disease

2021 ◽  
Author(s):  
Joon Young Choi ◽  
Jin Woo Song ◽  
Chin Kook Rhee
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Interstitial Lung Disease ◽  
Pulmonary Fibrosis ◽  
Lung Disease ◽  
Pulmonary Disease ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Quit Smoking ◽  
Lung Abnormalities ◽  
Pharmacologic Agents

Although chronic obstructive pulmonary disease (COPD) and interstitial lung disease (ILD) have distinct clinical features, both diseases may coexist in a patient because they share similar risk factors such as smoking, male sex, and old age. Patients with both emphysema in upper lung fields and diffuse ILD are diagnosed with combined pulmonary fibrosis and emphysema (CPFE), which causes substantial clinical deterioration. Patients with CPFE have higher mortality compared with patients who have COPD alone, but results have been inconclusive compared with patients who have idiopathic pulmonary fibrosis (IPF). Poor prognostic factors for CPFE include exacerbation, lung cancer, and pulmonary hypertension. The presence of interstitial lung abnormalities, which may be an early or mild form of ILD, is notable among patients with COPD, and is associated with poor prognosis. Various theories have been proposed regarding the pathophysiology of CPFE. Biomarker analyses have implied that this pathophysiology may be more closely associated with IPF development, rather than COPD or emphysema. Patients with CPFE should be advised to quit smoking and undergo routine lung function tests, and pulmonary rehabilitation may be helpful. Various pharmacologic agents may be beneficial in patients with CPFE, but further studies are needed.

scholarly journals Human lung cDC1 drive increased perforin-mediated NK cytotoxicity in Chronic Obstructive Pulmonary Disease

2021 ◽  
Author(s):  
Alexander M Pallazola ◽  
Jessica X Rao ◽  
Dawit T Mengistu ◽  
Maria S Morcos ◽  
Mariam S Toma ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Epithelial Cell ◽  
Epithelial Cells ◽  
Pulmonary Disease ◽  
Human Lung ◽  
Airway Epithelial Cells ◽  
Lung Epithelial Cells ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease

In chronic obstructive pulmonary disease (COPD), lung natural killer cells (NKs) lyse autologous lung epithelial cells in vitro, but underlying mechanisms and their relationship to epithelial cell apoptosis in vivo are undefined. Although this cytolytic capacity of lung NKs depends on priming by dendritic cells (DC), whether priming correlates with DC maturation or is limited to a specific DC subset are also unknown. We recruited ever-smokers (≥10 pack-years) (n=96) undergoing clinically-indicated lung resections. We analyzed lung NKs for cytotoxic molecule transcripts and for cytotoxicity, which we correlated with in situ detection of activated Caspase-3/7+ airway epithelial cells. To investigate DC priming, we measured lung DC expression of CCR2, CCR7, and CX3CR1, and co-cultured peripheral blood NKs with autologous lung DC, either matured using LPS (non-obstructed smokers) or separated into conventional DC type-1 (cDC1) versus cDC type-2 (cDC2) (COPD). Lung NKs in COPD expressed more perforin (p<0.02) and granzyme B (p<0.03) transcripts; inhibiting perforin blocked in vitro killing by lung NKs. Cytotoxicity in vitro correlated significantly (Sr=0.68, p=0.0043) with numbers of apoptotic epithelial cells per airway. In non-obstructed smokers, LPS-induced maturation enhanced DC-mediated priming of blood NKs, reflected by greater epithelial cell death. Although CCR7 expression was greater in COPD in both cDC1 (p<0.03) and cDC2 (p=0.009), only lung cDC1 primed NK killing. Thus, rather than being intrinsic to those with COPD, NK priming is a capacity of human lung DC that is inducible by recognition of bacterial (and possibly other) danger signals and restricted to the cDC1 subset.

Effect of Cellulose Powder on Human Nasal Epithelial Cell Activity and Ciliary Beat Frequency

2018 ◽  
Vol 178 (3) ◽  
pp. 229-237 ◽  
Author(s):  
Min Zhou ◽  
Ke-jun Zuo ◽  
Zhao-feng Xu ◽  
Wei-jie Guan ◽  
Li-jie Jiang ◽  
...  
Keyword(s):  
Epithelial Cell ◽  
Beat Frequency ◽  
Cell Activity ◽  
Ciliary Beat Frequency ◽  
Cellulose Powder ◽  
Nasal Epithelial Cell ◽  
Human Nasal Epithelial Cell ◽  
Ciliary Beat
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