scholarly journals The roles of exosomal miRNAs and lncRNAs in lung diseases

Author(s):  
Yang Li ◽  
Zhengrong Yin ◽  
Jinshuo Fan ◽  
Siyu Zhang ◽  
Weibing Yang

Abstract An increasing number of studies have reported that exosomes released from various cells can serve as mediators of information exchange between different cells. With further exploration of exosome content, a more accurate molecular mechanism involved in the process of cell-to-cell communication has been revealed; specifically, microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) are shuttled by exosomes. In addition, exosomal miRNAs and lncRNAs may play vital roles in the pathogenesis of several respiratory diseases, such as chronic obstructive pulmonary disease (COPD), lung cancer, and asthma. Consequently, exosomal miRNAs and lncRNAs show promise as diagnostic biomarkers and therapeutic targets in several lung diseases. This review will summarize recent knowledge about the roles of exosomal miRNAs and lncRNAs in lung diseases, which has shed light on the discovery of novel diagnostic methods and treatments for these disorders. Because there is almost no published literature about exosomal lncRNAs in COPD, asthma, interstitial lung disease, or tuberculosis, we summarize the roles of exosomal lncRNAs only in lung cancer in the second section. This may inspire some new ideas for researchers who are interested in whether lncRNAs shuttled by exosomes may play roles in other lung diseases.

2021 ◽  
Vol 27 ◽  
Author(s):  
Yu Hua ◽  
Yan Ding ◽  
Yapeng Hou ◽  
Yanhong Liu ◽  
Kejun Mao ◽  
...  

: Lung diseases are common clinical illnesses with high morbidity and mortality, which seriously threaten human health. In recent years, increasing evidence suggests that exosomes play a pivotal role in intercellular communication by delivering their cargo to pulmonary target cells,such as microRNAs. Physiologically, exosomes have been shown to be a critical mediator in maintaining homeostasis function in the complex thin-walled lung tissue and airway structure. Apart from being a diagnostic and prognostic biomarker, exosomes also participate in the progression of some lung diseases, such as chronic obstructive pulmonary disease, asthma, pulmonary fibrosis, acute lung injury, lung cancer, interstitial lung disease, and tuberculosis. Here, we summarize the recent findings on the involvement of exosomes and exosomal microRNAs in the pathogenesis, diagnosis, and therapy of lung diseases, aiming to provide more information to discover novel diagnostic methods and treatment strategies for these disorders.


2010 ◽  
Vol 17 (6) ◽  
pp. 287-294 ◽  
Author(s):  
Shannon L Walker ◽  
David L Saltman ◽  
Rosemary Colucci ◽  
Lesli Martin

OBJECTIVE: To assess awareness among persons at risk for lung cancer, chronic obstructive pulmonary disease (COPD) and sleep apnea regarding symptoms and risk factors of the disease, and their attitudes regarding the disease and toward those who are affected.METHODS: A quantitative hybrid telephone and Internet survey of a representative population of Canadian adults at risk for at least one of the three diseases was conducted. To measure the awareness and attitudes of First Nations, Inuit and Métis people to these diseases, a proportionate number were also surveyed.RESULTS: A total of 3626 individuals were contacted. Of these, 3036 (84%) were eligible to participate. Of those at risk for lung cancer and COPD, 65% and 69%, respectively, were due to tobacco smoke exposure. Among those at risk, 72% believed that they were informed about lung cancer compared with 36% for COPD and 56% for sleep apnea. Most respondents were knowledgeable about the common symptoms of lung cancer, COPD and sleep apnea, but were less aware of the impact lifestyle choices could have on the development of these disorders and the availability of treatment. Most of the participants (77%) believed that smoking was an addiction rather than a habit (19%). There were no significant differences in the awareness of risk factors, symptoms and attitudes toward all three lung diseases between First Nations, Inuit and Métis people and the general population.CONCLUSIONS: Canadians are reasonably aware of risk factors and symptoms for lung cancer and sleep apnea. However, there is poor awareness of COPD as a disease entity. There is a lack of appreciation for the impact lifestyle choices and changes can have on lung diseases.


2015 ◽  
Vol 45 (3) ◽  
pp. 807-827 ◽  
Author(s):  
Silke Meiners ◽  
Oliver Eickelberg ◽  
Melanie Königshoff

Ageing is the main risk factor for major non-communicable chronic lung diseases, including chronic obstructive pulmonary disease, most forms of lung cancer and idiopathic pulmonary fibrosis. While the prevalence of these diseases continually increases with age, their respective incidence peaks at different times during the lifespan, suggesting specific effects of ageing on the onset and/or pathogenesis of chronic obstructive pulmonary disease, lung cancer and idiopathic pulmonary fibrosis. Recently, the nine hallmarks of ageing have been defined as cell-autonomous and non-autonomous pathways involved in ageing. Here, we review the available evidence for the involvement of each of these hallmarks in the pathogenesis of chronic obstructive pulmonary disease, lung cancer, or idiopathic pulmonary fibrosis. Importantly, we propose an additional hallmark, “dysregulation of the extracellular matrix”, which we argue acts as a crucial modifier of cell-autonomous changes and functions, and as a key feature of the above-mentioned lung diseases.


2015 ◽  
Vol 24 (137) ◽  
pp. 428-435 ◽  
Author(s):  
George A. Margaritopoulos ◽  
Eirini Vasarmidi ◽  
Joseph Jacob ◽  
Athol U. Wells ◽  
Katerina M. Antoniou

For many years has been well known that smoking could cause lung damage. Chronic obstructive pulmonary disease and lung cancer have been the two most common smoking-related lung diseases. In the recent years, attention has also focused on the role of smoking in the development of interstitial lung diseases (ILDs). Indeed, there are three diseases, namely respiratory bronchiolitis-associated ILD, desquamative interstitial pneumonia and pulmonary Langerhans cell histiocytosis, that are currently considered aetiologically linked to smoking and a few others which are more likely to develop in smokers. Here, we aim to focus on the most recent findings regarding the role of smoking in the pathogenesis and clinical behaviour of ILDs.


2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
A-Reum Ryu ◽  
Do Hyun Kim ◽  
Eunjoo Kim ◽  
Mi Young Lee

Cigarette smoke contains more than 4,500 chemicals; most of which are highly reactive free radicals, which induce proinflammatory and carcinogenic reactions. Numerous efforts have focused extensively on the role of cigarette smoking as a cause of many diseases. Extracellular vesicles and exosomes have recently received increasing interest for their diagnostic and therapeutic roles in many diseases. However, research done on the role of extracellular vesicles and exosomes on cigarette smoke-induced chronic disease is still in its infancy. In this review, we summarize the recently addressed roles of extracellular vesicles and exosomes in the pathogenesis of cigarette smoke-related diseases, such as chronic obstructive pulmonary disease, cardiovascular disease, lung cancer, and oral cancer. Moreover, their potential utilization and future prospects as diagnostic biomarkers for cigarette smoke-related diseases are described.


2015 ◽  
Vol 26 (6) ◽  
pp. 1160-1173 ◽  
Author(s):  
Zhigang Jin ◽  
Jin Wei Chung ◽  
Wenyan Mei ◽  
Stefan Strack ◽  
Chunyan He ◽  
...  

Recent genome-wide association studies reveal that the FAM13A gene is associated with human lung function and a variety of lung diseases, including chronic obstructive pulmonary disease, asthma, lung cancer, and pulmonary fibrosis. The biological functions of Fam13a, however, have not been studied. In an effort to identify novel substrates of B56-containing PP2As, we found that B56-containing PP2As and Akt act antagonistically to control reversible phosphorylation of Fam13a on Ser-322. We show that Ser-322 phosphorylation acts as a molecular switch to control the subcellular distribution of Fam13a. Fam13a shuttles between the nucleus and cytoplasm. When Ser-322 is phosphorylated by Akt, the binding between Fam13a and 14-3-3 is enhanced, leading to cytoplasmic sequestration of Fam13a. B56-containing PP2As dephosphorylate phospho–Ser-322 and promote nuclear localization of Fam13a. We generated Fam13a-knockout mice. Fam13a-mutant mice are viable and healthy, indicating that Fam13a is dispensable for embryonic development and physiological functions in adult animals. Intriguingly, Fam13a has the ability to activate the Wnt pathway. Although Wnt signaling remains largely normal in Fam13a-knockout lungs, depletion of Fam13a in human lung cancer cells causes an obvious reduction in Wnt signaling activity. Our work provides important clues to elucidating the mechanism by which Fam13a may contribute to human lung diseases.


2021 ◽  
Vol 22 (2) ◽  
pp. 583
Author(s):  
Laura Pastor ◽  
Elisabeth Vera ◽  
Jose M. Marin ◽  
David Sanz-Rubio

Lung diseases (LD) are one of the most common causes of death worldwide. Although it is known that chronic airway inflammation and excessive tissue repair are processes associated with LD such as asthma, chronic obstructive pulmonary disease (COPD) or idiopathic pulmonary fibrosis (IPF), their specific pathways remain unclear. Extracellular vesicles (EVs) are heterogeneous nanoscale membrane vesicles with an important role in cell-to-cell communication. EVs are present in general biofluids as plasma or urine but also in secretions of the airway as bronchoalveolar lavage fluid (BALF), induced sputum (IS), nasal lavage (NL) or pharyngeal lavage. Alterations of airway EV cargo could be crucial for understanding LD. Airway EVs have shown a role in the pathogenesis of some LD such as eosinophil increase in asthma, the promotion of lung cancer in vitro models in COPD and as biomarkers to distinguishing IPF in patients with diffuse lung diseases. In addition, they also have a promising future as therapeutics for LD. In this review, we focus on the importance of airway secretions in LD, the pivotal role of EVs from those secretions on their pathophysiology and their potential for biomarker discovery.


Thorax ◽  
2021 ◽  
pp. thoraxjnl-2020-215041
Author(s):  
Reimar Wernich Thomsen ◽  
Anders Hammerich Riis ◽  
Esben Meulengracht Flachs ◽  
David H Garabrant ◽  
Jens Peter Ellekilde Bonde ◽  
...  

IntroductionThe risk of asbestosis, malignant mesothelioma and lung cancer among motor vehicle mechanics is of concern because of potential exposure to chrysotile asbestos during brake, clutch and gasket repair and maintenance. Asbestos has also been used in insulation and exhaust systems.MethodsWe examined the long-term risk of incident mesothelioma, lung cancer, asbestosis and other lung diseases and mortality due to mesothelioma, lung cancer, asbestosis and other lung diseases in a nationwide cohort of all men registered as motor vehicle mechanics since 1970 in Denmark. This was compared with the corresponding risk in a cohort of male workers matched 10:1 by age and calendar year, with similar socioeconomic status (instrument makers, dairymen, upholsterers, glaziers, butchers, bakers, drivers, farmers and workers in the food industry, trade or public services).ResultsOur study included 138 559 motor vehicle mechanics (median age 24 years; median follow-up 20 years (maximum 45 years)) and 1 385 590 comparison workers (median age 25 years; median follow-up 19 years (maximum 45 years)). Compared with other workers, vehicle mechanics had a lower risk of morbidity due to mesothelioma/pleural cancer (n=47 cases) (age-adjusted and calendar-year-adjusted HR=0.74 (95% CI 0.55 to 0.99)), a slightly increased risk of lung cancer (HR=1.09 (95% CI 1.03 to 1.14)), increased risk of asbestosis (HR=1.50 (95% CI 1.10 to 2.03)) and a chronic obstructive pulmonary disease risk close to unity (HR=1.02 (95% CI 0.99 to 1.05)). Corresponding HRs for mortality were 0.86 (95% CI 0.64 to 1.15) for mesothelioma/pleural cancer, 1.06 (95% CI 1.01 to 1.12) for lung cancer, 1.79 (95% CI 1.10 to 2.92) for asbestosis, 1.06 (95% CI 0.86 to 1.30) for other lung diseases caused by external agents and 1.00 (95% CI 0.98 to 1.01) for death due to all causes.ConclusionsWe found that the risk of asbestosis was increased among vehicle mechanics. The risk of malignant mesothelioma/pleural cancers was not increased among vehicle mechanics.


2018 ◽  
Vol 9 (4) ◽  
pp. 15-24
Author(s):  
O. V. Danilevskaya ◽  
A. V. Averyanov

Relevance: Probe-based confocal laser endomicroscopy (CLE) of distal airways is a unique technology that allows real-time visualization of structures containing natural fluorophores, which are emitted by exposure to laser radiation with a wavelength of 488 nm, in vivo. To date, the endomicroscopic features of the distal respiratory tract have not been adequately studied in lung diseases, including chronic obstructive pulmonary disease and chronic bronchitis. The goal of the present study is to describe the endomicroscopic signs of the distal parts of the respiratory system in chronic inflammatory lung diseases such as chronic obstructive pulmonary disease and chronic bronchitis. Methods: A total of 21 patients with emphysematous and bronchitic phenotypes of chronic obstructive pulmonary disease and chronic bronchitis were examined. All the patients have undergone CLE of distal airways or alveoloscopy during bronchoscopy. The most pathognomonic changes were evaluated on the obtained endomicroscopic images. Results: For each studied nosological form of chronic inflammatory lung diseases, by careful morphometric analysis of a significant number of informative images, the most specific endomicroscopic changes were identified with the release of CLE patterns. Conclusions: CLE of distal airways in patients with chronic inflammatory lung diseases allows visualizing changes in the elastic framework of the acini, as well as identifying pathological intraluminal contents, which can be attributed to valuable additional tools in a row of diagnostic methods of respiratory medicine.


2022 ◽  
Vol 11 (2) ◽  
pp. 407
Author(s):  
Diana C. Sanchez-Ramirez

Background: the effect of pulmonary rehabilitation (PR) services, beyond research contexts, on patients with lung diseases other than COPD requires further study. Objectives: to (i) assess the impact of a publicly funded PR on patients’ exercise capacity, self-efficacy, and health-related quality of life (HRQoL), and (ii) explore whether the effects vary across lung diseases. Methods: this retrospective pre–post study analyzed data from the Winnipeg Regional Health Authority PR program between 2016 and 2019. Results: 682 patients completed the full PR program. Pooled analyses found significant improvements in the patients’ exercise capacity (six-minute walk test (6MWT) (13.6%), fatigue (10.3%), and dyspnea (6.4%)), Self-Efficacy for Managing Chronic Disease 6-Item Scale (SEMCD6) (11.6%), and HRQoL (Clinical COPD Questionnaire (CCQ) (18.5%) and St George’s Respiratory Questionnaire (SGRQ) (10.9%)). The analyses conducted on sub-groups of patients with chronic obstructive pulmonary disease (COPD), asthma, bronchiectasis, interstitial lung diseases (ILDs), other restrictive lung diseases (e.g., obesity, pleural effusion, etc.), lung cancer, and pulmonary hypertension (PH) indicated that, except for patients with PH, all the patients improved in the 6MWT. Fatigue decreased in patients with COPD, ILDs, and other restrictive lung diseases. Dyspnea decreased in patients with COPD, asthma, and lung cancer. SEMCD6 scores increased in COPD, ILDs and PH patients. CCQ scores decreased in all lung diseases, except lung cancer and PH. SGRQ scores only decreased in patients with COPD. Conclusion: PR services had a significant impact on patients with different lung diseases. Therefore, publicly funded PR should be available as a critical component in the management of patients with these diseases.


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