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Young RP, Scott RJ. Should we be screening for COPD? - looking through the lens of lung cancer screening. Expert Rev Respir Med 2023; 17:753-771. [PMID: 37728077 DOI: 10.1080/17476348.2023.2259800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 09/13/2023] [Indexed: 09/21/2023]
Abstract
INTRODUCTION In May 2022, the US Preventive Services Task Force published their recommendation against screening for chronic obstructive pulmonary disease (COPD) in asymptomatic adults. However, we argue the routine use of spirometry in both asymptomatic and symptomatic high-risk smokers has utility. AREAS COVERED We provide published and unpublished observations from a secondary analyses of the American College of Radiology Imaging Network (ACRIN), arm of the National Lung Screening Trial, including 18,463 high-risk current or former smokers who underwent pre-bronchodilator spirometry at baseline. According to history alone, 20% reported a prior diagnosis of 'COPD,' although only 11% (about one half), actually had airflow limitation (Diagnosed COPD) and 9% had Global Initiative for Obstructive Pulmonary Disease GOLD 0 Pre-COPD. Of the remaining 80% of 'asymptomatic' screening participants, 23% had airflow limitation (Screen-detected COPD) and 13% had preserved ratio impaired spirometry (PRISm). This means 45% of this high-risk cohort were reclassified by spirometry, and together with comorbid disease, identified subgroups where lung cancer screening efficacy could be optimized by between 2-6 fold. EXPERT OPINION Our preliminary findings suggest lung cancer screening outcomes vary according to 'new' COPD-related spirometric-defined subgroups and that screening spirometry, together with comorbid disease, identifies those for whom lung cancer screening is mostly beneficial or potentially harmful.
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Affiliation(s)
- Robert P Young
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Raewyn J Scott
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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Miao E, Klugman M, Rohan T, Dean Hosgood H. Hypothesized Explanations for the Observed Lung Cancer Survival Benefit Among Hispanics/Latinos in the United States. J Racial Ethn Health Disparities 2022; 10:1339-1348. [PMID: 35524005 DOI: 10.1007/s40615-022-01319-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/13/2022] [Accepted: 04/25/2022] [Indexed: 12/24/2022]
Abstract
Hispanic/Latino ethnicity is associated with improved survival from non-small cell lung cancer compared to that for non-Hispanic Whites even though Hispanics/Latinos are more likely to potentially have inferior access-to-care and experience greater health disparities. To this end, we conducted a literature review to identify possible explanations for this survival benefit, including the role of chronic obstructive pulmonary disease and cardiovascular diseases, genetic variation, cultural influences, and immigration factors. Overall, intermittent smoking patterns, genetic variation, co-morbidities, and cultural influences were all factors likely to partially explain this survival benefit. On the other hand, immigration factors, acculturation, and access-to-care were less likely to support the survival advantage. Future research should analyze relevant Hispanic/Latino subgroups (e.g., Mexican, Puerto Rican, Cuban, Dominican, Central American, South American) and specifically focus on the relationship between Hispanic/Latino ethnicity and different lung cancer subtypes. If the Hispanic/Latino mortality benefit observed in lung cancer truly exists, a better understanding of the underlying mechanism(s) may help extend these benefits to other ethnic and racial groups.
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Affiliation(s)
- Emily Miao
- Albert Einstein College of Medicine, Bronx, NY, USA
| | - Madelyn Klugman
- New York Presbyterian Hospital-Weill Cornell Medical Center, New York, NY, USA
| | - Thomas Rohan
- Albert Einstein College of Medicine, Bronx, NY, USA
| | - H Dean Hosgood
- Albert Einstein College of Medicine, Bronx, NY, USA. .,Department of Epidemiology and Population Health, Division of Epidemiology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Belfer 1309, Bronx, NY, 10461, USA.
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Sun R, Tanino R, Tong X, Isomura M, Chen LJ, Hotta T, Okimoto T, Hamaguchi M, Hamaguchi S, Taooka Y, Isobe T, Tsubata Y. The Association Between Cyclooxygenase-2 -1195G/A (rs689466) Gene Polymorphism and the Clinicopathology of Lung Cancer in the Japanese Population: A Case-Controlled Study. Front Genet 2022; 13:796444. [PMID: 35450217 PMCID: PMC9016323 DOI: 10.3389/fgene.2022.796444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 02/17/2022] [Indexed: 12/24/2022] Open
Abstract
The single nucleotide polymorphisms of COX-2 gene, also known as PTGS2, which encodes a pro-inflammatory factor cyclooxygenase-2, alter the risk of developing multiple tumors, but these findings are not consistent for lung cancer. We previously reported that the homozygous COX-2 –1195A genotype is associated with an increased risk for chronic obstructive pulmonary disease (COPD) in Japanese individuals. COPD is a significant risk factor for lung cancer due to genetic susceptibility to cigarette smoke. In this study, we investigated the association between COX-2 –1195G/A polymorphism and lung cancer susceptibility in the Japanese population. We evaluated the genotype distribution of COX-2 –1195G/A using a polymerase chain reaction-restriction fragment length polymorphism assay for 330 newly diagnosed patients with lung cancer and 162 healthy controls. Our results show that no relationship exists between the COX-2 –1195G/A polymorphism and the risk of developing lung cancer. However, compared to the control group, the homozygous COX-2 –1195A genotype increased the risk for lung squamous cell carcinoma (odds ratio = 2.902; 95% confidence interval, 1.171–7.195; p = 0.021), whereas no association is observed with the risk for adenocarcinoma. In addition, Kaplan-Meier analysis shows that the genotype distribution of homozygous COX-2 –1195A does not correlate with the overall survival of patients with lung squamous cell carcinoma. Thus, we conclude that the homozygous COX-2 –1195A genotype confers an increased risk for lung squamous cell carcinoma in Japanese individuals and could be used as a predictive factor for early detection of lung squamous cell carcinoma.
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Affiliation(s)
- Rong Sun
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Ryosuke Tanino
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Xuexia Tong
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Minoru Isomura
- Department of Pathology, Shimane University Faculty of Medicine, Shimane University, Shimane, Japan
| | - Li-Jun Chen
- Department of Respiratory Medicine, Second Affiliated Hospital of Ningxia Medical University, Yinchuan, China
| | - Takamasa Hotta
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Tamio Okimoto
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Megumi Hamaguchi
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Shunichi Hamaguchi
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Yasuyuki Taooka
- Division of Internal Medicine, Department of Respiratory Medicine, Medical Corporation JR Hiroshima Hospital, Hiroshima, Japan
| | - Takeshi Isobe
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
| | - Yukari Tsubata
- Department of Internal Medicine, Division of Medical Oncology and Respiratory Medicine, Faculty of Medicine, Shimane University, Shimane, Japan
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Pulmonary Tuberculosis and the Incidence of Lung Cancer among Patients with Chronic Obstructive Pulmonary Disease. Ann Am Thorac Soc 2021; 19:640-648. [PMID: 34478360 DOI: 10.1513/annalsats.202010-1240oc] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
RATIONALE While the history of pulmonary tuberculosis (PTB) is a risk factor for developing both chronic obstructive pulmonary disease (COPD) and lung cancer, it remains unclear whether the history of PTB affects lung cancer development in COPD patients. OBJECTIVES To investigate whether a history of PTB is associated with an increased risk of lung cancer development in a population with COPD. METHODS This cohort study included a nationwide representative sample of 13,165 Korean men and women with COPD, aged between 50-84 years. In addition, to assess whether the relationship between PTB and lung cancer risk differs between participants with and without COPD, a matched cohort without COPD was included. Participants were matched 1:3 for age, sex, smoking history, and PTB status based on the index health screening exam of corresponding participants with COPD. The two cohorts were followed up for 13 years (January 1st, 2003, to December 31st, 2015). PTB was diagnosed based on the results of chest radiography, and incident lung cancer was identified from hospitalization and outpatient visit claims (International Classification of Diseases, Tenth Revision diagnosis code C33 or C34). RESULTS During 370,617 person-years (PY) of follow-up (median follow-up, 7.7 years), in the COPD group, we observed 430 incident cases of lung cancer in participants without a history of PTB (incidence rate 524 per 100,000 PY) and 148 cases in those with a history of PTB (incidence rate 931 per 100,000 PY). Compared to participants without a PTB history, the fully adjusted subdistribution hazard ratio (95% confidence interval) for lung cancer in those with a history of PTB was 1.24 (1.03, 1.50). The association of PTB history and lung cancer development was more evident in never-smokers with COPD. In contrast, among participants without COPD, the corresponding hazard ratio (95% confidence interval) was 0.98 (0.78, 1.22). There was no interaction between PTB, smoking status, and COPD. CONCLUSIONS The history of PTB was associated with an increased risk of developing lung cancer among COPD patients in our country with an intermediate TB burden. COPD patients with a history of PTB, particularly the never-smokers, might benefit from periodical screening or assessment for lung cancer development.
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Lung Cancer Risk Among Patients with Asthma-Chronic Obstructive Pulmonary Disease Overlap. Ann Am Thorac Soc 2021; 18:1894-1900. [PMID: 34019783 DOI: 10.1513/annalsats.202010-1280oc] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
RATIONALE Chronic obstructive pulmonary disease (COPD) is a well-established independent risk factor for lung cancer, while the literature on the association between asthma and lung cancer is mixed. Whether Asthma COPD Overlap (ACO) is associated with lung cancer has not been studied. OBJECTIVES We aimed to compare lung cancer risk among patients with ACO vs. COPD and other conditions associated with airway obstruction. METHODS We studied 13,939 smokers from the National Lung Cancer Screening Trial who had baseline spirometry, and utilized spirometric indices and history of childhood asthma to categorize participants into 5 specific airway disease subgroups. We used Poisson regression to compare unadjusted and adjusted lung cancer risk. RESULTS The incidence rate of lung cancer per 1,000 person-years was: ACO, 13.2 (95% confidence interval [CI]: 8.1-21.5); COPD, 11.7 (95% CI: 10.5-13.1); asthmatic smokers, 1.8 (95% CI: 0.6-5.4); Global Initiative for Chronic Obstructive Lung Disease-Unclassified, 7.7 (95% CI: 6.4-9.2); and normal-spirometry smokers, 4.1 (95% CI: 3.5-4.8). ACO patients had increased adjusted risk of lung cancer compared to patients with asthma (incidence rate ratio [IRR]: 4.5, 95% CI: 1.3-15.8) and normal spirometry smokers (IRR: 2.3, 95% CI: 1.3-4.2) in models adjusting for other risk factors. Adjusted lung cancer incidence in patients with ACO and COPD were not found to be different (IRR: 1.2, 95% CI 0.7 - 2.1). CONCLUSIONS Risk of lung cancer among patients with ACO is similar to those with COPD and higher than other groups of smokers. These results provide further evidence that COPD, with or without a history of childhood asthma, is an independent risk factor for lung cancer.
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Xiong R, Wu Y, Wu Q, Muskhelishvili L, Davis K, Tripathi P, Chen Y, Chen T, Bryant M, Rosenfeldt H, Healy SM, Cao X. Integration of transcriptome analysis with pathophysiological endpoints to evaluate cigarette smoke toxicity in an in vitro human airway tissue model. Arch Toxicol 2021; 95:1739-1761. [PMID: 33660061 PMCID: PMC8113308 DOI: 10.1007/s00204-021-03008-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 02/16/2021] [Indexed: 01/04/2023]
Abstract
Exposure to cigarette smoke (CS) is a known risk factor in the pathogenesis of smoking-caused diseases, such as chronic obstructive pulmonary diseases (COPD) and lung cancer. To assess the effects of CS on the function and phenotype of airway epithelial cells, we developed a novel repeated treatment protocol and comprehensively evaluated the progression of key molecular, functional, and structural abnormalities induced by CS in a human in vitro air-liquid-interface (ALI) airway tissue model. Cultures were exposed to CS (diluted with 0.5 L/min, 1.0 L/min, and 4.0 L/min clean air) generated from smoking five 3R4F University of Kentucky reference cigarettes under the International Organization for Standardization (ISO) machine smoking regimen, every other day for 4 weeks (3 days per week, 40 min/day). By integrating the transcriptomics-based approach with the in vitro pathophysiological measurements, we demonstrated CS-mediated effects on oxidative stress, pro-inflammatory cytokines and matrix metalloproteinases (MMPs), ciliary function, expression and secretion of mucins, and squamous cell differentiation that are highly consistent with abnormalities observed in airways of smokers. Enrichment analysis on the transcriptomic profiles of the ALI cultures revealed key molecular pathways, such as xenobiotic metabolism, oxidative stress, and inflammatory responses that were perturbed in response to CS exposure. These responses, in turn, may trigger aberrant tissue remodeling, eventually leading to the onset of respiratory diseases. Furthermore, changes of a panel of genes known to be disturbed in smokers with COPD were successfully reproduced in the ALI cultures exposed to CS. In summary, findings from this study suggest that such an integrative approach may be a useful tool for identifying genes and adverse cellular events caused by inhaled toxicants, like CS.
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Affiliation(s)
- Rui Xiong
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, 72079, USA
| | - Yue Wu
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, 72079, USA
| | - Qiangen Wu
- Division of Biochemical Toxicology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, 72079, USA
| | | | - Kelly Davis
- Toxicologic Pathology Associates, Jefferson, AR, 72079, USA
| | - Priya Tripathi
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, 72079, USA
| | - Ying Chen
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, 72079, USA
| | - Tao Chen
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, 72079, USA
| | - Matthew Bryant
- Office of Scientific Coordination, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, 72079, USA
| | - Hans Rosenfeldt
- Division of Nonclinical Science, Center for Tobacco Products, US Food and Drug Administration, Silver Spring, Maryland, 20993, USA
| | - Sheila M Healy
- Division of Nonclinical Science, Center for Tobacco Products, US Food and Drug Administration, Silver Spring, Maryland, 20993, USA
| | - Xuefei Cao
- Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, 72079, USA.
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7
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Hopkins RJ, Duan F, Gamble GD, Chiles C, Cavadino A, Billings P, Aberle D, Young RP. Chr15q25 genetic variant (rs16969968) independently confers risk of lung cancer, COPD and smoking intensity in a prospective study of high-risk smokers. Thorax 2021; 76:272-280. [PMID: 33419953 DOI: 10.1136/thoraxjnl-2020-214839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 10/27/2020] [Accepted: 12/08/2020] [Indexed: 12/12/2022]
Abstract
IMPORTANCE While cholinergic receptor nicotinic alpha 5 (CHRNA5) variants have been linked to lung cancer, chronic obstructive pulmonary disease (COPD) and smoking addiction in case-controls studies, their corelationship is not well understood and requires retesting in a cohort study. OBJECTIVE To re-examine the association between the CHRNA5 variant (rs16969968 AA genotype) and the development of lung cancer, relative to its association with COPD and smoking. METHODS In 9270 Non-Hispanic white subjects from the National Lung Screening Trial, a substudy of high-risk smokers were followed for an average of 6.4 years. We compared CHRNA5 genotype according to baseline smoking exposure, lung function and COPD status. We also compared the lung cancer incidence rate, and used multiple logistic regression and mediation analysis to examine the role of the AA genotype of the CHRNA5 variant in smoking exposure, COPD and lung cancer. RESULTS As previously reported, we found the AA high-risk genotype was associated with lower lung function (p=0.005), greater smoking intensity (p<0.001), the presence of COPD (OR 1.28 (95% CI 1.10 to 1.49) p=0.0015) and the development of lung cancer (HR 1.41, (95% CI 1.03 to 1.93) p=0.03). In a mediation analyses, the AA genotype was independently associated with smoking intensity (OR 1.42 (95% CI 1.25 to 1.60, p<0.0001), COPD (OR 1.25, (95% CI 1.66 to 2.53), p=0.0015) and developing lung cancer (OR 1.37, (95% CI 1.03 to 1.82) p=0.03). CONCLUSION In this large-prospective study, we found the CHRNA5 rs 16 969 968 AA genotype to be independently associated with smoking exposure, COPD and lung cancer (triple whammy effect).
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Affiliation(s)
- Raewyn J Hopkins
- The University of Auckland Faculty of Medical and Health Sciences, Auckland, New Zealand
| | - Fenghai Duan
- Department of Biostatistics and Centre for Statistical Science, Brown University, Providence, Rhode Island, USA
| | - Greg D Gamble
- The University of Auckland Faculty of Medical and Health Sciences, Auckland, New Zealand
| | - Caroline Chiles
- Department of Radiology, Wake Forest Baptist Medical Comprehensive Cancer Center, Winston-Salem, North Carolina, USA
| | - Alana Cavadino
- The University of Auckland Faculty of Medical and Health Sciences, Auckland, New Zealand
| | | | - Denise Aberle
- Department of Radiological Sciences, University of California Los Angeles David Geffen School of Medicine, Los Angeles, California, USA
| | - Robert P Young
- The University of Auckland Faculty of Medical and Health Sciences, Auckland, New Zealand
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Yoneyama R, Saji H, Takeuchi S, Ikeda N. Lung cancer and obstructive lung disease in never smokers. J Thorac Dis 2020; 12:3934-3939. [PMID: 32944303 PMCID: PMC7475531 DOI: 10.21037/jtd.2020.04.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Remi Yoneyama
- Department of Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hisashi Saji
- Department of Chest Surgery, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Susumu Takeuchi
- Department of Surgery, Tokyo Medical University, Tokyo, Japan.,Department of Pulmonary Medicine and Oncology, Nippon Medical School, Tokyo, Japan
| | - Norihiko Ikeda
- Department of Surgery, Tokyo Medical University, Tokyo, Japan
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Poggiana C, Rossi E, Zamarchi R. Possible role of circulating tumor cells in early detection of lung cancer. J Thorac Dis 2020; 12:3821-3835. [PMID: 32802464 PMCID: PMC7399415 DOI: 10.21037/jtd.2020.02.24] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The prognosis of lung cancer varies highly depending on the disease stage at diagnosis, from a 5-year survival rate close to 90% in stage I, to 10% or less in stage IV disease. The enhancement of early diagnosis of this malignancy is mandatory to improve prognosis, because lung cancer patients stay long asymptomatic or few symptomatic after disease onset. Nowadays, liquid biopsy has emerged as a minimally-invasive tool to address the urgent need for real time monitoring, stratification, and personalized treatment of malignancies, including lung cancer. Liquid biopsy refers to a class of biomarkers, including circulating tumor cells (CTCs), cell-free circulating tumor DNA (ctDNA) and tumor-derived extracellular vesicles (tdEV). Since CTCs represent a crucial step in disease progression and metastasis, we reviewed here the scientific literature about the use of CTCs in early diagnosis of lung cancer; different techniques, and different strategies (e.g., source of analysis sample or high-risk groups of patients) were discussed showing the potential of implementing liquid biopsy in the clinical routine of non-metastatic lung cancer.
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Affiliation(s)
| | - Elisabetta Rossi
- Veneto Institute of Oncology IOV-IRCCS, Padua, Italy.,Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
| | - Rita Zamarchi
- Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
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10
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Parris BA, O'Farrell HE, Fong KM, Yang IA. Chronic obstructive pulmonary disease (COPD) and lung cancer: common pathways for pathogenesis. J Thorac Dis 2019; 11:S2155-S2172. [PMID: 31737343 DOI: 10.21037/jtd.2019.10.54] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer comprise the leading causes of lung disease-related mortality worldwide. Exposure to tobacco smoke is a mutual aetiology underlying the two diseases, accounting for almost 90% of cases. There is accumulating evidence supporting the role of immune dysfunction, the lung microbiome, extracellular vesicles and underlying genetic susceptibility in the development of COPD and lung cancer. Further, epigenetic factors, involving DNA methylation and microRNA expression, have been implicated in both diseases. Chronic inflammation is a key feature of COPD and could be a potential driver of lung cancer development. Using next generation technologies, further studies investigating the genomics, epigenetics and gene-environment interaction in key molecular pathways will continue to elucidate the pathogenic mechanisms underlying the development of COPD and lung cancer, and contribute to the development of novel diagnostic and prognostic tools for early intervention and personalised therapeutic strategies.
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Affiliation(s)
- Brielle A Parris
- UQ Thoracic Research Centre, The Prince Charles Hospital, University of Queensland, Brisbane, Australia
| | - Hannah E O'Farrell
- UQ Thoracic Research Centre, The Prince Charles Hospital, University of Queensland, Brisbane, Australia
| | - Kwun M Fong
- UQ Thoracic Research Centre, The Prince Charles Hospital, University of Queensland, Brisbane, Australia.,Department of Thoracic Medicine, The Prince Charles Hospital, Metro North Hospital and Health Service, Brisbane, Australia
| | - Ian A Yang
- UQ Thoracic Research Centre, The Prince Charles Hospital, University of Queensland, Brisbane, Australia.,Department of Thoracic Medicine, The Prince Charles Hospital, Metro North Hospital and Health Service, Brisbane, Australia
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Wood DE, Kazerooni EA, Baum SL, Eapen GA, Ettinger DS, Hou L, Jackman DM, Klippenstein D, Kumar R, Lackner RP, Leard LE, Lennes IT, Leung ANC, Makani SS, Massion PP, Mazzone P, Merritt RE, Meyers BF, Midthun DE, Pipavath S, Pratt C, Reddy C, Reid ME, Rotter AJ, Sachs PB, Schabath MB, Schiebler ML, Tong BC, Travis WD, Wei B, Yang SC, Gregory KM, Hughes M. Lung Cancer Screening, Version 3.2018, NCCN Clinical Practice Guidelines in Oncology. J Natl Compr Canc Netw 2019; 16:412-441. [PMID: 29632061 DOI: 10.6004/jnccn.2018.0020] [Citation(s) in RCA: 373] [Impact Index Per Article: 74.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lung cancer is the leading cause of cancer-related mortality in the United States and worldwide. Early detection of lung cancer is an important opportunity for decreasing mortality. Data support using low-dose computed tomography (LDCT) of the chest to screen select patients who are at high risk for lung cancer. Lung screening is covered under the Affordable Care Act for individuals with high-risk factors. The Centers for Medicare & Medicaid Services (CMS) covers annual screening LDCT for appropriate Medicare beneficiaries at high risk for lung cancer if they also receive counseling and participate in shared decision-making before screening. The complete version of the NCCN Guidelines for Lung Cancer Screening provides recommendations for initial and subsequent LDCT screening and provides more detail about LDCT screening. This manuscript focuses on identifying patients at high risk for lung cancer who are candidates for LDCT of the chest and on evaluating initial screening findings.
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12
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Young RP, Hopkins R. The potential impact of chronic obstructive pulmonary disease in lung cancer screening: implications for the screening clinic. Expert Rev Respir Med 2019; 13:699-707. [PMID: 31274043 DOI: 10.1080/17476348.2019.1638766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Introduction: Following the findings of the National Lung Screening Trial (NLST), lung cancer screening is now recommended in the United States. However, post-hoc analyses of the NLST suggest that reducing lung cancer mortality through screening is highly dependent on the underlying characteristics of the screening participants, in particular, the presence of chronic obstructive pulmonary disease (COPD). Areas covered: In this review, we outline how outcomes in lung cancer screening are significantly affected by the presence of airflow limitation, as caused by COPD, and how this might impact the assessment of eligible smokers in a lung cancer screening clinic. Expert opinion: There is growing evidence showing that CT-based screening for lung cancer reduces lung cancer mortality. The benefits of screening exceed those seen in the NLST when screening is carried out in lower risk populations, for a longer duration, and when outcomes are compared with usual care control cohorts. In this article, we review data from a post-hoc analysis of the NLST. We suggest that whilst worsened airflow limitation is associated with greater lung cancer risk, there is also more aggressive lung cancer, reduced lung cancer operability, and for advanced COPD, reduced benefits from screening. We advocate an 'outcomes-based' approach to screening over a 'risk-based' approach.
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Affiliation(s)
- Robert P Young
- a School of Biological Sciences, University of Auckland , Auckland , New Zealand.,b Faculty of Medical and Health Sciences, University of Auckland , Auckland , New Zealand
| | - Raewyn Hopkins
- b Faculty of Medical and Health Sciences, University of Auckland , Auckland , New Zealand
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13
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Wang P, Zhu M, Zhang D, Guo XG, Zhao S, Zhang XL, Wang DL, Liu CT. The relationship between chronic obstructive pulmonary disease and non-small cell lung cancer in the elderly. Cancer Med 2019; 8:4124-4134. [PMID: 31184445 PMCID: PMC6675702 DOI: 10.1002/cam4.2333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/19/2019] [Accepted: 05/24/2019] [Indexed: 12/24/2022] Open
Abstract
Objectives Chronic obstructive pulmonary disease (COPD) and NSCLC often coexist and have poor prognoses, but studies investigating the impact of COPD on NSCLC have reported inconsistent findings. The objective of this study was to compare survival between NSCLC patients with and without COPD. Methods Medical records were retrospectively collected from 301 elderly patients pathologically diagnosed with NSCLC from the Chinese PLA General Hospital. Ultimately, a total of 200 patients were enrolled in the analysis. The survival rates between the COPD‐NSCLC and non‐COPD NSCLC were assessed using log‐rank and Cox proportional hazard regression analyses. Results A total of 117 COPD‐NSCLC and 93 non‐COPD NSCLC patients were enrolled in the analysis. The median overall survival times were 108.5 months in the non‐COPD group and 45.0 months in the COPD group (HR: 2.05; 95% CI, 1.36‐2.97, P = 0.0004). After 118 patients underwent propensity score matching, the median overall survival times were 100.6 months in the non‐COPD group and 51.9 months in the COPD group (HR: 1.59; 95% CI, 1.096‐2.64, P = 0.0459). The multivariate analysis showed that presence of COPD (HR 1.619, P = 0.030), old age (HR 1.007, P < 00001), an advanced disease stage (stage Ⅲ HR 5.513, P < 0.0001; stage Ⅳ HR 11.743, P < 0.0001), the squamous cell carcinoma histological subtype (HR 3.106, P < 0.0001), the presence of a cough (HR 2.463, P = 0.001) a higher serum carcinoembryonic antigen level (HR 1.001, P = 0.023) and higher NRL (HR 2.615, P = 0.007) were independent factors that were significantly associated with poorer survival. Conclusion A diagnosis of COPD had significant poorer survival outcomes in NSCLC than that of patients without COPD in this elderly population.
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Affiliation(s)
- Peng Wang
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Min Zhu
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Dong Zhang
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Xue-Guang Guo
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Shu Zhao
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Xue-Lin Zhang
- Department of Respiratory Diseases, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - De-Long Wang
- Department of Respiratory Diseases, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Chang-Ting Liu
- Department of Respiratory Diseases, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
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14
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Brzóska K, Bartłomiejczyk T, Sochanowicz B, Cymerman M, Grudny J, Kołakowski J, Kruszewski M, Śliwiński P, Roszkowski-Śliż K, Kapka-Skrzypczak L. Carcinogenesis-related changes in iron metabolism in chronic obstructive pulmonary disease subjects with lung cancer. Oncol Lett 2018; 16:6831-6837. [PMID: 30405827 DOI: 10.3892/ol.2018.9459] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 08/10/2018] [Indexed: 12/17/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is often accompanied by lung cancer. In our previous work, it was observed that matrix metalloproteinase-3 and haptoglobin (HP) polymorphisms were potential markers of enhanced susceptibility to lung cancer development among male COPD subjects. Here, results are reported on blood serum levels of several proteins involved in iron metabolism, inflammation and the oxidative stress response compared between the same groups of subjects. The blood serum levels of tumor necrosis factor α (TNFα), transferrin, hepcidin, ferritin, soluble transferrin receptor and 8-oxo-2'-deoxyguanosine were compared, as well as total iron-binding capacity (TIBC) and ceruloplasmin ferroxidase activity in two groups of subjects: Male COPD patients (54 subjects) and male COPD patients diagnosed with lung cancer (53 subjects). Statistically significant differences were identified between the two groups in transferrin and TNFα levels, as well as in TIBC; all three parameters were lower in the group consisting of COPD patients diagnosed with lung cancer (P<0.01). It was also revealed that HP genotype 1/2 was concomitant with low transferrin blood level in subjects with COPD; this apparent dependence was absent in the COPD + cancer subjects. The results indicate a role of iron metabolism in the susceptibility to lung cancer in COPD-affected subjects. They also emphasize the importance of individual capacity for an effective response to oxidative stress during the pathogenic process as HP is a plasma protein that binds free hemoglobin and its polymorphism results in proteins with altered hemoglobin-binding capacity and different antioxidant and iron-recycling functions.
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Affiliation(s)
- Kamil Brzóska
- Institute of Nuclear Chemistry and Technology, Centre for Radiobiology and Biological Dosimetry, 03-195 Warsaw, Poland
| | - Teresa Bartłomiejczyk
- Institute of Nuclear Chemistry and Technology, Centre for Radiobiology and Biological Dosimetry, 03-195 Warsaw, Poland
| | - Barbara Sochanowicz
- Institute of Nuclear Chemistry and Technology, Centre for Radiobiology and Biological Dosimetry, 03-195 Warsaw, Poland
| | - Magdalena Cymerman
- Institute of Nuclear Chemistry and Technology, Centre for Radiobiology and Biological Dosimetry, 03-195 Warsaw, Poland
| | - Jacek Grudny
- Institute of Tuberculosis and Lung Diseases, Third Department of Lung Diseases, 01-138 Warsaw, Poland
| | - Jacek Kołakowski
- Institute of Tuberculosis and Lung Diseases, Department of Diagnosis and Treatment of Respiratory Insufficiency, 01-138 Warsaw, Poland
| | - Marcin Kruszewski
- Institute of Nuclear Chemistry and Technology, Centre for Radiobiology and Biological Dosimetry, 03-195 Warsaw, Poland.,Institute of Rural Health, Department of Molecular Biology and Translational Research, 20-090 Lublin, Poland.,University of Information Technology and Management, Faculty of Medicine, Department of Medical Biology and Translational Research, 35-225 Rzeszów, Poland
| | - Paweł Śliwiński
- Institute of Tuberculosis and Lung Diseases, Department of Diagnosis and Treatment of Respiratory Insufficiency, 01-138 Warsaw, Poland
| | - Kazimierz Roszkowski-Śliż
- Institute of Tuberculosis and Lung Diseases, Third Department of Lung Diseases, 01-138 Warsaw, Poland
| | - Lucyna Kapka-Skrzypczak
- Institute of Rural Health, Department of Molecular Biology and Translational Research, 20-090 Lublin, Poland.,University of Information Technology and Management, Faculty of Medicine, Department of Medical Biology and Translational Research, 35-225 Rzeszów, Poland
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15
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Nakazawa S, Shimizu K, Mogi A, Kuwano H. Low diffusing capacity, emphysema, or pulmonary fibrosis: who is truly pulling the lung cancer strings? J Thorac Dis 2018; 10:600-602. [PMID: 29607119 DOI: 10.21037/jtd.2017.12.145] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Seshiru Nakazawa
- Division of General Thoracic Surgery, Integrative Center of General Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Integrative Center of General Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - Akira Mogi
- Division of General Thoracic Surgery, Integrative Center of General Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - Hiroyuki Kuwano
- Division of General Thoracic Surgery, Integrative Center of General Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
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16
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Miao JL, Cai JJ, Qin XF, Liu RJ. Analysis of the Clinicopathological Characteristics and Risk Factors in Patients with Lung Cancer and Chronic Obstructive Pulmonary Disease. BIOMED RESEARCH INTERNATIONAL 2018; 2018:8398156. [PMID: 29662900 PMCID: PMC5832198 DOI: 10.1155/2018/8398156] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 12/28/2017] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To investigate the clinicopathological characteristics and risk factors in patients with lung cancer and COPD. MATERIALS AND METHODS We retrospectively reviewed the clinical data of 282 patients with lung cancer, including 174 and 108 patients with and without COPD, respectively. Information on age, sex, smoking status, and histologic type was obtained from medical records. RESULTS Lung cancer patients with COPD and those with the chronic bronchitis (CB) phenotype had higher smoking indices compared to those without COPD (723.95 ± 631.48 and 920.95 ± 712.93 versus 418.40 ± 506.84; P = 0.010; P = 0.001, resp.), and current smokers accounted for significantly higher proportions of lung cancer patients with COPD and the CB phenotype versus without COPD (51.15% and 63.74% versus 35.19%; P = 0.009; P = 0.001, resp.). Adenocarcinoma was significantly more common in lung cancer patients without versus with COPD (48.15% versus 35.63%; P = 0.037), whereas small cell lung cancer was more common in patients with COPD (23.56% versus 13.89%). Among patients with COPD, male sex (odds ratio [OR], 19.946; P < 0.001), current smokers (OR: 6.588; P = 0.001), and age ≥ 75 years (OR: 2.670; P = 0.008) were identified as high-risk factors. CONCLUSION The risk factors for COPD among lung cancer patients were age ≥ 75 years, current smokers with the CB phenotype, and male sex.
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Affiliation(s)
- Jian-Long Miao
- Department of Respiratory Medicine, Shandong Jining No. 1 People's Hospital, Jining, Shandong 272000, China
| | - Jing-Jing Cai
- Department of Respiratory Medicine, Shandong Jining No. 1 People's Hospital, Jining, Shandong 272000, China
| | - Xiao-Feng Qin
- Department of Respiratory Medicine, Shandong Juxian People's Hospital, Juxian, Shandong 276511, China
| | - Rui-Juan Liu
- Department of Respiratory Medicine, Shandong Jining No. 1 People's Hospital, Jining, Shandong 272000, China
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17
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Liu JC, Yang TY, Hsu YP, Hao WR, Kao PF, Sung LC, Chen CC, Wu SY. Statins dose-dependently exert a chemopreventive effect against lung cancer in COPD patients: a population-based cohort study. Oncotarget 2018; 7:59618-59629. [PMID: 27517752 PMCID: PMC5312335 DOI: 10.18632/oncotarget.11162] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 07/09/2016] [Indexed: 02/03/2023] Open
Abstract
Purpose Chronic obstructive pulmonary disease (COPD) is associated with increased lung cancer risk. We evaluated the association of statin use with lung cancer risk in COPD patients and identified which statins possess the highest chemopreventive potential. Results After adjustment for age, sex, CCI, diabetes, hypertension, dyslipidemia, urbanization level, and monthly income according to propensity scores, lung cancer risk in the statin users was lower than that in the statin nonusers (adjusted hazard ratio [aHR] = 0.37). Of the individual statins, lovastatin and fluvastatin did not reduce lung cancer risk significantly. By contrast, lung cancer risk in patients using rosuvastatin, simvastatin, atorvastatin, and pravastatin was significantly lower than that in statin nonusers (aHRs = 0.41, 0.44, 0.52, and 0.58, respectively). Statins dose-dependently reduced lung cancer risk in all subgroups and the main model with additional covariates (nonstatin drug use). MATERIALS AND METHODS The study cohort comprised all patients diagnosed with COPD at health care facilities in Taiwan (n = 116,017) between January 1, 2001 and December 31, 2012. Our final study cohort comprised 43,802 COPD patients: 10,086 used statins, whereas 33,716 did not. Patients were followed up to assess lung cancer risk or protective factors. In addition, we also considered demographic characteristics, namely age, sex, comorbidities (diabetes, hypertension, dyslipidemia, and Charlson comorbidity index [CCI]), urbanization level, monthly income, and nonstatin drug use. The index date of statin use was the COPD confirmation date. To examine the dose–response relationship, we categorized statin use into four groups in each cohort: < 28, 28–90, 91–365, and > 365 cumulative defined daily doses (cDDDs). Patients receiving < 28 cDDDs were defined as nonstatin users. Conclusions Statins dose-dependently exert a significant chemopreventive effect against lung cancer in COPD patients. Rosuvastatin, simvastatin, and atorvastatin exhibited the highest chemopreventive potential.
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Affiliation(s)
- Ju-Chi Liu
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tsung-Yeh Yang
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yi-Ping Hsu
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wen-Rui Hao
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Pai-Feng Kao
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Li-Chin Sung
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chun-Chao Chen
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Szu-Yuan Wu
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Biotechnology, Hungkuang University, Taichung, Taiwan
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18
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Lee HY, Kim EY, Kim YS, Ahn HK, Kim YK. Prognostic significance of CT-determined emphysema in patients with small cell lung cancer. J Thorac Dis 2018; 10:874-881. [PMID: 29607160 DOI: 10.21037/jtd.2018.01.97] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Although emphysema and small cell lung cancer (SCLC) are prevalent in smokers, no previous study has investigated the prognostic impact of computed tomography (CT)-determined emphysema in SCLC. This study was undertaken to analyze the prognostic value of emphysema scores as determined by baseline CT scans in patients with SCLC. Methods The data of 149 consecutive patients with SCLC were analyzed. Emphysema severity was semi-quantitatively scored on baseline chest CT images using the Goddard scoring system (possible scores for individual patients ranged from 0 to 24). Data on clinical characteristics and survival were retrospectively collected. Survivals were estimated using the Kaplan-Meier method and compared using the log-rank test. A multivariable Cox proportional hazard model was used to identify prognostic factors. Results Most of the 149 patients were male (85.2%) and current/ex-smokers (87.2%). The median CT emphysema score was 4 (range, 0 to 23). Univariable analysis, patients with a higher CT emphysema score (≥8) had significantly poorer overall survivals (OS) than those with lower scores (5.0 vs. 12.3 months, P<0.001). Multivariable analysis showed a higher CT emphysema score (treated as a continuous variable) was a significant independent prognostic factor of poor survival [hazard ratio (HR), 1.85; 95% confidence interval (CI), 1.14 to 3.00; P=0.012], along with extensive stage (HR, 2.27; 95% CI, 1.45-3.53; P<0.001), elevated lactate dehydrogenase (LDH) (HR, 1.52; 95% CI, 1.03-2.23; P=0.034), and supportive care only (HR, 6.46; 95% CI, 3.64-11.48; P<0.001). Conclusions Emphysema severity, as determined by baseline CT, is significantly associated with poor prognosis in SCLC.
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Affiliation(s)
- Hee Young Lee
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Eun Young Kim
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Young Saing Kim
- Division of Medical Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Hee Kyung Ahn
- Division of Medical Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Yoon Kyung Kim
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Republic of Korea
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19
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Karpman MD, Eldridge R, Follis JL, Etzel CJ, Shete S, El-Zein RA. Chronic obstructive pulmonary disease among lung cancer-free smokers: The importance of healthy controls. Respir Investig 2017; 56:28-33. [PMID: 29325677 DOI: 10.1016/j.resinv.2017.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 10/16/2017] [Accepted: 11/06/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND The prevalence of chronic obstructive pulmonary disease (COPD) in smokers enrolled as "healthy" controls in studies is 10-50%. The COPD status of ideal smoker populations for lung cancer case-control studies should be checked via spirometry; however, this is often not feasible, because no medical indications exist for asymptomatic smokers to undergo spirometry prior to study enrollment. Therefore, there is an unmet need for robust, cost effective assays for identifying undiagnosed lung disease among asymptomatic smokers. Such assays would help excluding unhealthy smokers from lung cancer case-control studies. METHODS We used the cytokinesis-blocked micronucleus (CBMN) assay (a measure of genetic instability) to identify undiagnosed lung disease among asymptomatic smokers. We used a convenience population from an on-going lung cancer case-control study including smokers with lung cancer (n = 454), smoker controls (n = 797), and a self-reported COPD (n = 200) contingent within the smoker controls. RESULTS Significant differences for all CBMN endpoints were observed when comparing lung cancer to All controls (which included COPD) and Healthy controls (with no COPD). The risk ratio (RR) was increased in the COPD group vs. Healthy controls for nuclear buds (RR 1.28, 95% confidence interval 1.01-1.62), and marginally increased for micronuclei (RR 1.06, 0.98-1.89) and nucleoplasmic bridges (RR 1.07, 0.97-1.15). CONCLUSION These findings highlight the importance of using truly healthy controls in studies geared toward assessment of lung cancer risk. Using genetic instability biomarkers would facilitate the identification of smokers susceptible to tobacco smoke carcinogens and therefore predisposed to either disease.
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Affiliation(s)
| | - Ronald Eldridge
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA
| | - Jack L Follis
- Department of Mathematics, Computer Science and Cooperative Engineering, The University of St. Thomas, Houston, TX 77006, USA
| | | | - Sanjay Shete
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77230, USA
| | - Randa A El-Zein
- Department of Radiology, Houston Methodist Research Institute, Houston, TX 77030, USA.
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20
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Hamilton G, Rath B. Circulating tumor cell interactions with macrophages: implications for biology and treatment. Transl Lung Cancer Res 2017; 6:418-430. [PMID: 28904886 DOI: 10.21037/tlcr.2017.07.04] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cancer and metastasis are closely associated with inflammation. Macrophages are important effector cells in enhancing tumor proliferation, invasion and providing protection against the immune system. Despite advanced knowledge of tumor-macrophage interactions, the role of macrophages in emergence and invasion of circulating tumor cells (CTCs) is not known. A series of six CTC cell lines have been derived from blood of patients with extensive disease small cell lung cancer (ED-SCLC) in our lab, most likely representing a homogenous cell population of the actual metastasis-initiating cells (MIC) of CTCs. SCLC has an unfavorable prognosis due to rapid dissemination and early chemoresistant relapses. SCLC CTCs recruit macrophages and elicit secretion of various cytokines and the six CTC lines express chitinase-3-like-1 (CHI3L1), vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP9) in abundance. CHI3L1 is cytokine/growth factor expressed in inflammation and cancer and found to be correlated to metastasis and a dismal prognosis. In conclusion, SCLC CTCs have acquired the essential means for aggressiveness and invasion in a tumor microenvironment specifically shaped by macrophages and inflammation.
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Affiliation(s)
- Gerhard Hamilton
- Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Barbara Rath
- Department of Surgery, Medical University of Vienna, Vienna, Austria
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21
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Gosens R, Giangreco A, Sahai E, Chambers RC. Mechanistic overlap between chronic lung injury and cancer: ERS Lung Science Conference 2017 report. Eur Respir Rev 2017; 26:26/144/170060. [PMID: 28659500 PMCID: PMC9488997 DOI: 10.1183/16000617.0060-2017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 06/02/2017] [Indexed: 12/02/2022] Open
Abstract
The aims of the European Respiratory Society (ERS) Lung Science Conference (LSC) are three-fold: to present the very best of international lung science research; to highlight new discoveries likely to have an impact on the future of respiratory medicine; and to encourage debate and interaction between emerging investigators and established leaders in the field. The 15th ERS LSC, held in Estoril, Portugal, on March 23–26, 2017, was focused on the mechanistic overlap between chronic lung injury and cancer. Epidemiological studies have shown increased risk of lung cancer development in individuals with chronic obstructive pulmonary disease (COPD) as an independent risk factor [1, 2]. Studies dating back to 1977 had already made the link and concluded that “lung cancer and COPD share a common familial pathogenetic component associated with pulmonary dysfunction” [2]. More recent studies have confirmed this pathogenetic overlap with the observation that common bronchial epithelial gene expression signatures exist for (ex)-smoking and squamous cell lung cancer [3]. Emerging evidence suggests that progressive lung scarring in the context of idiopathic pulmonary fibrosis (IPF) similarly represents a risk factor for lung carcinogenesis, although causality remains to be definitively established [4], Given that chronic lung diseases such as COPD and IPF occur more frequently in elderly individuals, and that the hallmarks of ageing are closely linked with the hallmarks of cancer development [5], such an overlap is perhaps not entirely surprising. Nonetheless, only limited genetic and mechanistic studies on the specific overlap between chronic lung disease and cancer have been reported, underscoring the urgent need for further scientific investigation in this area. The 15th ERS LSC was entirely dedicated to this topic, aiming to foster scientific interactions in order to move this exciting and rapidly evolving concept forward, with a view to developing effective therapeutic approaches for the many patients affected. Highlights of the LSC 2017 and introduction to five mini-reviews in this issue of the ERRhttp://ow.ly/mL3Q30coNjY
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Affiliation(s)
- Reinoud Gosens
- Dept of Molecular Pharmacology, University of Groningen, Groningen, The Netherlands
| | - Adam Giangreco
- Centre for Lungs for Living, UCL Respiratory, University College London, London, UK
| | - Erik Sahai
- Tumour Cell Biology Laboratory, The Francis Crick Institute, London, UK
| | - Rachel C Chambers
- Centre for Inflammation and Tissue Repair, UCL Respiratory, University College London, London, UK
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22
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Wieshammer S, Dreyhaupt J. Smoking exposure, loss of forced expiratory volume in one second and the risk of lung cancer among patients with malignant disease who present with cardiac or pulmonary symptoms: a cross-sectional study. Tob Induc Dis 2017; 15:16. [PMID: 28286467 PMCID: PMC5343303 DOI: 10.1186/s12971-017-0122-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 02/28/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Smokers with airway obstruction are at a higher risk of lung cancer than smokers without airway obstruction. Inflammation plays a key role in lung carcinogenesis. This single-center study prospectively assessed (i) the relationship between smoking exposure and the loss of forced expiratory volume in 1 s (FEV1) in determining lung cancer risk and (ii) the effect of lung cancer on systemic inflammation. METHODS The study group comprised 475 consecutively enrolled patients with cancer who presented with pulmonary or cardiac symptoms. The effects of smoking exposure and FEV1 loss on the predicted lung cancer risk were assessed using multiple logistic regression analysis. C-reactive protein (CRP) was used as a marker of inflammation. RESULTS The prevalence of lung cancer was 0.23. The lung cancer risk increased with the number of pack years and FEV1 loss (p < 0.01). Moving from the 5th (-22% of the predicted value) to the 95th percentile of FEV1 loss (56% of the predicted value) increased lung cancer risk from 0.07 to 0.23 (Δ = 0.16) at 0 pack years and from 0.39 to 0.73 (Δ = 0.34) at 70 pack years (95th percentile). The values for Δ peaked at 61 pack years (0.34) and then decreased with a further increase in smoking exposure, without reaching the zero mark. Patients with lung cancer were more likely to have a CRP level above the median (4.05 mg/L) than patients with other cancers (adjusted odds ratio = 2.67). CONCLUSIONS Systemic inflammation is more pronounced in patients with lung cancer than in patients with other cancers. The effect of FEV1 loss on the patients' predicted risks of lung cancer increases with increasing smoking exposure. Measurements of FEV1 loss are useful to identify patients facing an increased risk of developing lung cancer.
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Affiliation(s)
- Siegfried Wieshammer
- Department of Cardiology, Pulmonology and Critical Care Medicine, Offenburg Hospital, Weingartenstrasse 70, D-77654 Offenburg, Germany
| | - Jens Dreyhaupt
- Institute of Epidemiology and Medical Biometry, University of Ulm, Schwabstrasse 13, D-89075 Ulm, Germany
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23
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Abstract
Proteases play an important role in health and disease of the lung. In the normal lungs, proteases maintain their homeostatic functions that regulate processes like its regeneration and repair. Dysregulation of proteases–antiproteases balance is crucial in the manifestation of different types of lung diseases. Chronic inflammatory lung pathologies are associated with a marked increase in protease activities. Thus, in addition to protease activities, inhibition of anti-proteolytic control mechanisms are also important for effective microbial infection and inflammation in the lung. Herein, we briefly summarize the role of different proteases and to some extent antiproteases in regulating a variety of lung diseases.
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24
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Wang DC, Shi L, Zhu Z, Gao D, Zhang Y. Genomic mechanisms of transformation from chronic obstructive pulmonary disease to lung cancer. Semin Cancer Biol 2017; 42:52-59. [DOI: 10.1016/j.semcancer.2016.11.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 11/08/2016] [Indexed: 01/17/2023]
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25
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Qiu F, Li Y, Lu X, Xie C, Nong Q, Wu D, Chen J, Yang L, Zhou Y, Lu J. Rare variant ofMAP2K7is associated with increased risk of COPD in southern and eastern Chinese. Respirology 2017; 22:691-698. [DOI: 10.1111/resp.12976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 09/11/2016] [Accepted: 09/29/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Fuman Qiu
- Biomedicine Research Center of The Third Affiliated Hospital of GMU, The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity; Guangzhou Medical University; Guangzhou China
| | - Yinyan Li
- Biomedicine Research Center of The Third Affiliated Hospital of GMU, The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity; Guangzhou Medical University; Guangzhou China
| | - Xiaoxiao Lu
- School of Arts and Sciences; Colby-Sawyer College; New London New Hampshire USA
| | - Chenli Xie
- Biomedicine Research Center of The Third Affiliated Hospital of GMU, The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity; Guangzhou Medical University; Guangzhou China
| | - Qingqing Nong
- Department of Environmental Health; Guangxi Medical University; Nanning China
| | - Di Wu
- Biomedicine Research Center of The Third Affiliated Hospital of GMU, The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity; Guangzhou Medical University; Guangzhou China
| | - Jiansong Chen
- Biomedicine Research Center of The Third Affiliated Hospital of GMU, The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity; Guangzhou Medical University; Guangzhou China
| | - Lei Yang
- Biomedicine Research Center of The Third Affiliated Hospital of GMU, The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity; Guangzhou Medical University; Guangzhou China
| | - Yifeng Zhou
- Department of Genetics; Medical College of Soochow University; Suzhou China
| | - Jiachun Lu
- Biomedicine Research Center of The Third Affiliated Hospital of GMU, The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity; Guangzhou Medical University; Guangzhou China
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Huang R, Wei Y, Hung RJ, Liu G, Su L, Zhang R, Zong X, Zhang ZF, Morgenstern H, Brüske I, Heinrich J, Hong YC, Kim JH, Cote M, Wenzlaff A, Schwartz AG, Stucker I, Mclaughlin J, Marcus MW, Davies MPA, Liloglou T, Field JK, Matsuo K, Barnett M, Thornquist M, Goodman G, Wang Y, Chen S, Yang P, Duell EJ, Andrew AS, Lazarus P, Muscat J, Woll P, Horsman J, Teare MD, Flugelman A, Rennert G, Zhang Y, Brenner H, Stegmaier C, van der Heijden EHFM, Aben K, Kiemeney L, Barros-Dios J, Pérez-Ríos M, Ruano-Ravina A, Caporaso NE, Bertazzi PA, Landi MT, Dai J, Hongbing Shen H, Fernandez-Tardon G, Rodriguez-Suarez M, Tardon A, Christiani DC. Associated Links Among Smoking, Chronic Obstructive Pulmonary Disease, and Small Cell Lung Cancer: A Pooled Analysis in the International Lung Cancer Consortium. EBioMedicine 2016; 2:1677-85. [PMID: 26870794 PMCID: PMC4740296 DOI: 10.1016/j.ebiom.2015.09.031] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 09/16/2015] [Accepted: 09/16/2015] [Indexed: 01/17/2023] Open
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Brinchault G, Diot P, Dixmier A, Goupil F, Guillais P, Gut-Gobert C, Leroyer C, Marchand-Adam S, Meurice JC, Morel H, Person C, Cavaillès A. [Comorbidities of COPD]. REVUE DE PNEUMOLOGIE CLINIQUE 2015; 71:342-349. [PMID: 26585876 DOI: 10.1016/j.pneumo.2015.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 09/08/2015] [Indexed: 06/05/2023]
Abstract
COPD is a slowly progressive chronic respiratory disease causing an irreversible decrease in air flow. The main cause is smoking, which provokes inflammatory phenomena in the respiratory tract. COPD is a serious public health issue, causing high morbidity, mortality and disability. Related comorbidities are linked to ageing, common risk factors and genetic predispositions. A combination of comorbidities increases healthcare costs. For instance, patients with more than two comorbidities represent a quarter of all COPD sufferers but account for half the related health costs. Our review describes different comorbidities and their impact on the COPD prognosis. The comorbidities include: cardiovascular diseases, osteoporosis, denutrition, obesity, ageing, anemia, sleeping disorders, diabetes, metabolic syndrome, anxiety-depression and lung cancer. The prognosis worsens with one or more comorbidities. Clinicians are faced with the challenge of finding practical and appropriate ways of treating these comorbidities, and there is increasing interest in developing a global, multidisciplinary approach to management. Managing this chronic disease should be based on a holistic, patient-centred approach and smoking cessation remains the key factor in the care of COPD patients.
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Affiliation(s)
- G Brinchault
- Service de pneumologie, CHU Pontchaillou, 2, rue Henri-le-Guilloux, 35033 Rennes cedex, France
| | - P Diot
- Service de pneumologie, hôpital Bretonneau, CHRU de Tours, 2, boulevard Tonnellé, 37044 Tours cedex 9, France
| | - A Dixmier
- Service de pneumologie et oncologie thoracique, centre hospitalier régional d'Orléans, 14, avenue de l'Hôpital, 45067 Orléans cedex 2, France
| | - F Goupil
- Service de pneumologie, CH Le Mans, 194, avenue Rubillard, 72037 Le Mans cedex, France
| | - P Guillais
- CHP Saint-Martin, 18, rue des Roquemonts, 14000 Caen, France
| | - C Gut-Gobert
- Département de pneumologie et médecine interne, CHRU la Cavale-Blanche, boulevard Tanguy-Prigent, 29609 Brest cedex 2, France
| | - C Leroyer
- UBO, EA3878 (GETBO) IFR 148, département de médecine interne et de pneumologie, CHU de la Cavale-Blanche, université européenne de Bretagne, 29609 Brest, France
| | - S Marchand-Adam
- UMR 1100, service de pneumologie et explorations fonctionnelles respiratoires, université François-Rabelais, CHRU de Tours, 37032 Tours, France; UMR 1100/EA6305, Inserm, centre d'étude des pathologies respiratoires, 37032 Tours, France
| | - J-C Meurice
- Service de pneumologie du CHU de Poitiers, faculté de médecine et pharmacie de Poitiers, 2, rue de la Milétrie, 86000 Poitiers, France
| | - H Morel
- Service de pneumologie et oncologie thoracique, centre hospitalier régional d'Orléans, 14, avenue de l'Hôpital, 45067 Orléans cedex 2, France
| | - C Person
- Département de pneumologie, CHU d'Angers, 4, rue Larrey, 49933 Angers cedex 9, France
| | - A Cavaillès
- Service de pneumologie, l'institut du thorax, CHU de Nantes, boulevard Jacques-Monod, 44093 Nantes cedex 1, France.
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Negewo NA, Gibson PG, McDonald VM. COPD and its comorbidities: Impact, measurement and mechanisms. Respirology 2015; 20:1160-71. [PMID: 26374280 DOI: 10.1111/resp.12642] [Citation(s) in RCA: 157] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 03/17/2015] [Accepted: 07/13/2015] [Indexed: 01/20/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) frequently coexists with other conditions often known as comorbidities. The prevalence of most of the common comorbid conditions that accompany COPD has been widely reported. It is also recognized that comorbidities have significant health and economic consequences. Nevertheless, there is scant research examining how comorbidities should be assessed and managed in the context of COPD. Also, the underlying mechanisms linking COPD with its comorbidities are still not fully understood. Owing to these knowledge gaps, current disease-specific approaches provide clinicians with little guidance in terms of managing comorbid conditions in the clinical care of multi-diseased COPD patients. This review discusses the concepts of comorbidity and multi-morbidity in COPD in relation to the overall clinical outcome of COPD management. It also summarizes some of the currently available clinical scores used to measure comorbid conditions and their prognostic abilities. Furthermore, recent developments in the proposed mechanisms linking COPD with its comorbidities are discussed.
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Affiliation(s)
- Netsanet A Negewo
- Priority Research Centre for Asthma and Respiratory Diseases and Hunter Medical Research Institute, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Peter G Gibson
- Priority Research Centre for Asthma and Respiratory Diseases and Hunter Medical Research Institute, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, New South Wales, Australia
| | - Vanessa M McDonald
- Priority Research Centre for Asthma and Respiratory Diseases and Hunter Medical Research Institute, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia.,School of Nursing and Midwifery, The University of Newcastle, Callaghan, New South Wales, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, New South Wales, Australia
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Smoking, inflammation and small cell lung cancer: recent developments. Wien Med Wochenschr 2015; 165:379-86. [PMID: 26289596 DOI: 10.1007/s10354-015-0381-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 07/23/2015] [Indexed: 12/16/2022]
Abstract
Small cell lung cancer (SCLC) accounts for 15 % of all lung tumors and represents an invasive neuroendocrine malignancy with poor survival rates. This cancer is highly prevalent in smokers and characterized by inactivation of p53 and retinoblastoma. First in vitro expansion of circulating tumor cells (CTCs) of SCLC patients allowed for investigation of the cell biology of tumor dissemination. In the suggested CTC SCLC model, the primary tumor attracts and educates tumor-promoting and immunosuppressive macrophages which in turn arm CTCs to spread and generate distal lesions. Preexisting inflammatory processes associated with chronic obstructive pulmonary disease (COPD) seem to potentiate the subsequent activity of tumor-associated macrophages (TAM). Activation of signal transducer and activator of transcription 3 (STAT3) and expression of chitinase-3-like 1/YKL-40 in SCLC CTCs seems to be associated with drug resistance. In conclusion, inflammation-associated generation of invasive and chemoresistant CTCs most likely explains the characteristic features of SCLC, namely early dissemination and rapid failure of chemotherapy.
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Impact of chronic obstructive pulmonary disease on the mortality of patients with non-small-cell lung cancer. J Thorac Oncol 2015; 9:812-7. [PMID: 24807154 DOI: 10.1097/jto.0000000000000158] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The impact of chronic obstructive pulmonary disease (COPD) on the mortality of patients with lung cancer has not been studied extensively. The objective of this study is to compare the mortality and clinical characteristics of patients with non-small-cell lung cancer (NSCLC) according to the presence of COPD. METHODS The medical records of 221 smokers diagnosed with NSCLC were reviewed. Eligible patients were dichotomized into the COPD group (n = 111) and the non-COPD group (n = 110). The overall survival and clinical characteristics were compared, and predictors of worse survival were analyzed using Cox proportional hazards regression. RESULTS COPD was present in 50.2% of all patients with NSCLC, and most of the patients (92.8%) with COPD were unaware of the disease before the diagnosis of lung cancer. Patients in the COPD group were older and had a lower body mass index, higher pack-years smoking history, higher frequency of dyspnea, and higher incidence of previous malignancy. The overall survival of enrolled patients and propensity score-matched subjects was comparable between the two groups (log-rank test, p = 0.2 and 0.396, respectively). Old age, low body mass index, advanced disease stage (stages III and IV), non-squamous histology, Eastern Cooperative Oncology Group performance status of greater than or equal to 2, weight loss, and coexistence of interstitial lung disease were independent risk factors for shorter survival. CONCLUSION COPD frequently and subliminally coexists with NSCLC. Although differences in clinical characteristic did exist, there was no impact of COPD on the mortality of patients with NSCLC with a positive smoking history in this study.
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Yang L, Qiu F, Fang W, Zhang L, Xie C, Lu X, Huang D, Guo Y, Pan M, Zhang H, Zhou Y, Lu J. The Functional Copy Number Variation-67048 in WWOX Contributes to Increased Risk of COPD in Southern and Eastern Chinese. COPD 2014; 12:494-501. [PMID: 25517572 DOI: 10.3109/15412555.2014.948993] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Recent studies have recognized the genetic variants in the WW domain-containing oxidoreductase (WWOX) gene as genetic determinants of lung function, reflecting that the WWOX gene may be a susceptible factor of chronic obstructive pulmonary disease (COPD), which characters as poor lung function. We have previously showed that the copy number variation-67048 (CNV-67048) of WWOX was associated with lung cancer risk. Here, we hypothesized that the CNV-67048 affects COPD susceptibility. Based on a two-stage case-control study with a total of 1791 COPD patients and 1940 controls of southern and eastern Chinese, we found that the loss genotypes (0-copy and 1-copy) of CNV-67048 harbored a significantly increased risk of COPD, with an odds ratio (OR) as 1.29 (1.11-1.49) when compared with the common 2-copy genotype. The pre-forced expiratory volume in one second (pre-FEV1) to pre-forced vital capacity (pre-FVC) of carriers with loss genotypes (0.729 ± 0.130) was significantly lower than carriers with 2-copy genotype (0.747 ± 0.124; p = 7.93 × 10(-5)). However, no significant difference was observed on pre-FEV1, pre-FVC and the annual decline of pre-FEV1 between the loss genotypes and 2-copy genotype carriers. Our data suggest that the loss genotypes of CNV-67048 in WWOX predispose their carriers to COPD, which might be a genetic biomarker to predict risk of COPD in Chinese.
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Affiliation(s)
- Lei Yang
- a The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis , Guangzhou Medical University , Guangzhou , China
| | - Fuman Qiu
- a The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis , Guangzhou Medical University , Guangzhou , China
| | - Wenxiang Fang
- a The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis , Guangzhou Medical University , Guangzhou , China
| | - Lisha Zhang
- a The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis , Guangzhou Medical University , Guangzhou , China
| | - Chenli Xie
- a The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis , Guangzhou Medical University , Guangzhou , China.,b Dongguan Taiping People Hospital , Dongguan , China
| | - Xiaoxiao Lu
- a The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis , Guangzhou Medical University , Guangzhou , China
| | - Dongsheng Huang
- c Department of Respiratory Medicine , Guangzhou Chest Hospital , Guangzhou , China
| | - Yuan Guo
- d The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou , China
| | - Mingan Pan
- e Department of Respiratory Medicine , the third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Haibo Zhang
- f Department of Respiratory Medicine , Guangzhou Red Cross Hospital , Guangzhou , China
| | - Yifeng Zhou
- g Department of Genetics , Medical College of Soochow University , Suzhou , China
| | - Jiachun Lu
- a The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis , Guangzhou Medical University , Guangzhou , China
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Yang L, Lu X, Qiu F, Fang W, Zhang L, Huang D, Xie C, Zhong N, Ran P, Zhou Y, Lu J. Duplicated copy of CHRNA7 increases risk and worsens prognosis of COPD and lung cancer. Eur J Hum Genet 2014; 23:1019-24. [PMID: 25407004 DOI: 10.1038/ejhg.2014.229] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 07/21/2014] [Accepted: 09/19/2014] [Indexed: 12/11/2022] Open
Abstract
Recent genome-wide association studies implicated that the nicotinic acetylcholine receptors (nAChRs) are common susceptible genes of two contextual diseases: chronic obstructive pulmonary disease (COPD) and lung cancer. We aimed to test whether the copy number variations (CNVs) in nAChRs have hereditary contributions to development of the two diseases. In two, two-stage, case-control studies of southern and eastern Chinese, a common CNV-3956 that duplicates the cholinergic receptor, nicotinic, α7 (CHRNA7) gene was genotyped in a total of 7880 subjects and its biological phenotype was assessed. The ≥4-copy of CNV-3956 increased COPD risk (≥4-copy vs 2/3-copy: OR=1.44, 95% CI=1.23-1.68) and caused poor lung function, and it similarly augmented risk (OR=1.49, 95% CI=1.29-1.73) and worsened prognosis (hazard ratio (HR)=1.25, 95% CI=1.07-1.45) of lung cancer. The ≥4-copy was estimated to account for 1.56% of COPD heritability and 1.87% of lung cancer heritability, respectively. Phenotypic analysis further showed that the ≥4-copy of CNV-3956 improved CHRNA7 expression in vivo and increased the carriers' smoking amount. The CNV-3956 of CHRNA7 contributed to increased risks and poor prognoses of both COPD and lung cancer, and this may be a genetic biomarker of the two diseases.
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Affiliation(s)
- Lei Yang
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou, China
| | - Xiaoxiao Lu
- 1] The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou, China [2] Colby-Sawyer College, New London, NH, USA
| | - Fuman Qiu
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou, China
| | - Wenxiang Fang
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou, China
| | - Lisha Zhang
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou, China
| | - Dongsheng Huang
- Department of Respiratory Medicine, Guangzhou Chest Hospital, Guangzhou, China
| | - Chenli Xie
- 1] The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou, China [2] Dongguan Taiping People Hospital, Dongguan, China
| | - Nanshan Zhong
- The First Affiliated Hospital, The State Key Lab of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Pixin Ran
- The First Affiliated Hospital, The State Key Lab of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Yifeng Zhou
- Department of Genetics, Medical College of Soochow University, Suzhou, China
| | - Jiachun Lu
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou, China
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Takiguchi Y, Sekine I, Iwasawa S, Kurimoto R, Tatsumi K. Chronic obstructive pulmonary disease as a risk factor for lung cancer. World J Clin Oncol 2014; 5:660-6. [PMID: 25300704 PMCID: PMC4129530 DOI: 10.5306/wjco.v5.i4.660] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 01/27/2014] [Accepted: 05/16/2014] [Indexed: 02/06/2023] Open
Abstract
The association between chronic obstructive pulmonary disease (COPD) and lung cancer has long been a subject of intense debate. The high prevalence of COPD in elderly smokers inevitably strengthens their coincidence. In addition to this contingent coincidence, recent studies have revealed a close association between the two diseases that is independent of the smoking history; that is, the existence of COPD is an independent risk factor for the development of lung cancer. Molecular-based evidence has been accumulating as a result of the efforts to explain the underlying mechanisms of this association. These mechanisms may include the following: the retention of airborne carcinogens followed by the activation of oncogenes and the suppression of tumor suppressor genes; the complex molecular mechanism associated with chronic inflammation in the distal airways of patients with COPD; the possible involvement of putative distal airway stem cells; and genetic factors that are common to both COPD and lung cancer. The existence of COPD in patients with lung cancer may potentially affect the process of diagnosis, surgical resection, radiotherapy, chemotherapy, and end-of-life care. The comprehensive management of COPD is extremely important for the appropriate treatment of lung cancer. Surgical resections with the aid of early interventions for COPD are often possible, even for patients with mild-to-moderate COPD. New challenges, such as lung cancer CT screening for individuals at high risk, are now in the process of being implemented. Evaluating the risk of lung cancer in patients with COPD may be warranted in community-based lung cancer screening.
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Yang L, Yang X, Ji W, Deng J, Qiu F, Yang R, Fang W, Zhang L, Huang D, Xie C, Zhang H, Zhong N, Ran P, Zhou Y, Lu J. Effects of a functional variant c.353T>C in snai1 on risk of two contextual diseases. Chronic obstructive pulmonary disease and lung cancer. Am J Respir Crit Care Med 2014; 189:139-48. [PMID: 24354880 DOI: 10.1164/rccm.201307-1355oc] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Epithelial-mesenchymal transition (EMT) plays a key role in the development of chronic obstructive pulmonary disease (COPD) and lung cancer. OBJECTIVES There are five major EMT regulatory genes (Snai1, Slug, Zeb1, Zeb2, and Twist1) involved in EMT. We hypothesized that germline variants in these genes may influence the development of both diseases. METHODS Seven genetic variants were genotyped in two two-stage case-control studies with 2,072 lung cancer cases and 2,077 control subjects, and 1,791 patients with COPD and 1,940 control subjects to show their associations with development of both diseases. MEASUREMENTS AND MAIN RESULTS An exon variant c.353T>C(p.Val118Ala) of Snai1 harbored decreased risks of lung cancer (CT/CC vs. TT: odds ratio [OR], 0.76; 95% confidence interval [CI], 0.65-0.90) and COPD (CC vs. CT vs. TT: OR, 0.75; 95% CI, 0.63-0.89), and c.353T>C affected lung cancer risk indirectly through COPD (COPD accounted for 6.78% of effect that the variant had on lung cancer). Moreover, c.353T>C was correlated with lung cancer stages in smoking patients (P = 0.013), and those with the c.353C genotypes were less likely to have metastasis at diagnosis than those with the c.353TT genotype (OR, 0.60; 95% CI, 0.41-0.88). The c.353C allele encoding p.118Ala attenuated Snai1's ability to up-regulate mesenchymal biomarkers (i.e., fibronectin and vimentin) expression, and to promote EMT-like changes, including morphologic changes, cell migration, and invasion. However, these effects were not observed for the other variants. CONCLUSIONS The functional germline variant c.353T>C (p.Val118Ala) of Snai1 confers consistently decreased risks of lung cancer and COPD, and this variant affects lung cancer risk through a mediation effect of COPD.
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Affiliation(s)
- Lei Yang
- 1 The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Guangzhou Institute of Respiratory Diseases, and
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Sekine Y, Hata A, Koh E, Hiroshima K. Lung carcinogenesis from chronic obstructive pulmonary disease: characteristics of lung cancer from COPD and contribution of signal transducers and lung stem cells in the inflammatory microenvironment. Gen Thorac Cardiovasc Surg 2014; 62:415-21. [PMID: 24627306 DOI: 10.1007/s11748-014-0386-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Indexed: 10/25/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer are closely related. The annual incidence of lung cancer arising from COPD has been reported to be 0.8-1.7 %. Treatment of lung cancer from COPD is very difficult due to low cardiopulmonary function, rapid tumor growth, and resistance to molecularly targeted therapies. Chronic inflammation caused by toxic gases can induce COPD and lung cancer. Carcinogenesis in the inflammatory microenvironment occurs during cycles of tissue injury and repair. Cellular damage can induce induction of necrotic cell death and loss of tissue integrity. Quiescent normal stem cells or differentiated progenitor cells are introduced to repair injured tissues. However, inflammatory mediators may promote the growth of bronchioalveolar stem cells, and activation of NF-κB and signal transducer and activator of transcription 3 (STAT3) play crucial roles in the development of lung cancer from COPD. Many of the protumorgenic effects of NF-κB and STAT3 activation in immune cells are mediated through paracrine signaling. NF-κB and STAT3 also contribute to epithelial-mesenchymal transition. To improve lung cancer treatment outcomes, lung cancer from COPD must be overcome. In this article, we review the characteristics of lung cancer from COPD and the mechanisms of carcinogenesis in the inflammatory microenvironment. We also propose the necessity of identifying the mechanisms underlying progression of COPD to lung cancer, and comment on the clinical implications with respect to lung cancer prevention, screening, and therapy.
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Affiliation(s)
- Yasuo Sekine
- Department of Thoracic Surgery, Tokyo Women's Medical University Yachiyo Medical Center, 477-96 Owada-Shinden, Yachiyo, Chiba, 276-8524, Japan,
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Choudhury G, Rabinovich R, MacNee W. Comorbidities and Systemic Effects of Chronic Obstructive Pulmonary Disease. Clin Chest Med 2014; 35:101-30. [DOI: 10.1016/j.ccm.2013.10.007] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Young RP, Hopkins RJ. Update on the potential role of statins in chronic obstructive pulmonary disease and its co-morbidities. Expert Rev Respir Med 2014; 7:533-44. [DOI: 10.1586/17476348.2013.838018] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Zhang J, Zhou JB, Lin XF, Wang Q, Bai CX, Hong QY. Prevalence of undiagnosed and undertreated chronic obstructive pulmonary disease in lung cancer population. Respirology 2013; 18:297-302. [PMID: 23051099 DOI: 10.1111/j.1440-1843.2012.02282.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Chronic obstructive pulmonary disease (COPD) is a risk factor and important coexisting disease for lung cancer; however, the current status of management of COPD in lung cancer patients is not fully described. This study addressed this issue in a general teaching hospital in China. METHODS Medical records of hospitalized lung cancer patients in Zhongshan Hospital, Fudan University, between January 2006 and December 2010 were reviewed. The definition of COPD was according to the spirometric criteria of the Global Initiative for Chronic Obstructive Lung Disease (GOLD) document. The diagnostic rate (COPD recorded as a discharge diagnosis/spirometry-defined percentage) and conformity to GOLD treatment guidelines were investigated. The factors influencing diagnosis were analysed. RESULTS During the study period, the prevalence of spirometry-defined COPD in hospitalized lung cancer patients was 21.6% (705/3263). The overall diagnostic rate of COPD was 7.1%, and the treatment conformity for stable and acute exacerbation of COPD was 27.1% and 46.8%, respectively. Respiratory physicians had a higher diagnostic rate than non-respiratory doctors (34.8% vs 2.9%, P < 0.001) and a better treatment conformity for acute exacerbation of COPD (63.6% vs 37.5%, P = 0.048). Patients with COPD as a discharge diagnosis had more chance to receive guideline-consistent treatment. The diagnostic rate of COPD was higher among patients with a history of smoking, respiratory diseases or symptoms. CONCLUSIONS COPD is substantially underdiagnosed and undertreated in a hospitalized lung cancer population. History of smoking, respiratory diseases and symptoms promotes diagnosis. Education of COPD knowledge among patients and doctors is urgently required in this special population.
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Affiliation(s)
- Jing Zhang
- Departments of Pulmonary Medicine Thoracic Surgery, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
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Zhai R, Yu X, Wei Y, Su L, Christiani DC. Smoking and smoking cessation in relation to the development of co-existing non-small cell lung cancer with chronic obstructive pulmonary disease. Int J Cancer 2013; 134:961-70. [PMID: 23921845 DOI: 10.1002/ijc.28414] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/05/2013] [Accepted: 07/09/2013] [Indexed: 12/25/2022]
Abstract
Previous studies have identified a mixed-phenotype of non-small cell lung cancer (NSCLC) with co-existing chronic obstructive pulmonary disease (COPD). Although NSCLC and COPD share a common risk factor in smoking, whether and how smoking may contribute to the coexistence of NSCLC with COPD (NSCLC-COPD) is unclear. Our study suggests that cigarette smoking is the major risk factor for the development of NSCLC-COPD, especially in females and among patients with squamous cell carcinoma subtype.
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Affiliation(s)
- Rihong Zhai
- Department of Environmental Health, Harvard School of Public Health, Boston, MA
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Biomarkers in Exhaled Breath Condensate and Serum of Chronic Obstructive Pulmonary Disease and Non-Small-Cell Lung Cancer. Int J Chronic Dis 2013; 2013:578613. [PMID: 26464846 PMCID: PMC4590922 DOI: 10.1155/2013/578613] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 07/08/2013] [Indexed: 01/17/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer are leading causes of deaths worldwide which are associated with chronic inflammation and oxidative stress. Lung cancer, in particular, has a very high mortality rate due to the characteristically late diagnosis. As such, identification of novel biomarkers which allow for early diagnosis of these diseases could improve outcome and survival rate. Markers of oxidative stress in exhaled breath condensate (EBC) are examples of potential diagnostic markers for both COPD and non-small-cell lung cancer (NSCLC). They may even be useful in monitoring treatment response. In the serum, S100A8, S100A9, and S100A12 of the S100 proteins are proinflammatory markers. They have been indicated in several inflammatory diseases and cancers including secondary metastasis into the lung. It is highly likely that they not only have the potential to be diagnostic biomarkers for NSCLC but also prognostic indicators and therapeutic targets.
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Brothers JF, Hijazi K, Mascaux C, El-Zein RA, Spitz MR, Spira A. Bridging the clinical gaps: genetic, epigenetic and transcriptomic biomarkers for the early detection of lung cancer in the post-National Lung Screening Trial era. BMC Med 2013; 11:168. [PMID: 23870182 PMCID: PMC3717087 DOI: 10.1186/1741-7015-11-168] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 06/20/2013] [Indexed: 02/05/2023] Open
Abstract
Lung cancer is the leading cause of cancer death worldwide in part due to our inability to identify which smokers are at highest risk and the lack of effective tools to detect the disease at its earliest and potentially curable stage. Recent results from the National Lung Screening Trial have shown that annual screening of high-risk smokers with low-dose helical computed tomography of the chest can reduce lung cancer mortality. However, molecular biomarkers are needed to identify which current and former smokers would benefit most from annual computed tomography scan screening in order to reduce the costs and morbidity associated with this procedure. Additionally, there is an urgent clinical need to develop biomarkers that can distinguish benign from malignant lesions found on computed tomography of the chest given its very high false positive rate. This review highlights recent genetic, transcriptomic and epigenomic biomarkers that are emerging as tools for the early detection of lung cancer both in the diagnostic and screening setting.
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Vermaelen K, Brusselle G. Exposing a deadly alliance: novel insights into the biological links between COPD and lung cancer. Pulm Pharmacol Ther 2013; 26:544-54. [PMID: 23701918 DOI: 10.1016/j.pupt.2013.05.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 05/08/2013] [Accepted: 05/10/2013] [Indexed: 12/22/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) affects more than 200 million people worldwide and is expected to become the third leading cause of death in 2020. COPD is characterized by progressive airflow limitation, due to a combination of chronic inflammation and remodeling of the small airways (bronchiolitis) and loss of elastic recoil caused by destruction of the alveolar walls (emphysema). Lung cancer is the most important cause of cancer-related death in the world. (Cigarette) smoking is the principal culprit causing both COPD and lung cancer; in addition, exposure to environmental tobacco smoke, biomass fuel smoke, coal smoke and outdoor air pollution have also been associated with an increased incidence of both diseases. Importantly, smokers with COPD--defined as either not fully reversible airflow limitation or emphysema--have a two- to four-fold increased risk to develop lung cancer. In this review, we highlight several of the genetic, epigenetic and inflammatory mechanisms, which link COPD and carcinogenesis in the lungs. Elucidating the biological pathways and networks, which underlie the increased susceptibility of lung cancer in patients with COPD, has important implications for screening, prevention, diagnosis and treatment of these two devastating pulmonary diseases.
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Affiliation(s)
- K Vermaelen
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium.
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Affiliation(s)
- Jun She
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ping Yang
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Qunying Hong
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chunxue Bai
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
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Kim WJ, Oh YM, Kim TH, Lee JH, Kim EK, Lee JH, Lee SM, Shin TR, Yoon HI, Lim SY, Lee SD. CHRNA3Variant for Lung Cancer Is Associated with Chronic Obstructive Pulmonary Disease in Korea. Respiration 2013. [DOI: 10.1159/000342976] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Feng F, Wu Y, Zhang S, Liu Y, Qin L, Wu Y, Yan Z, Wu W. Macrophages facilitate coal tar pitch extract-induced tumorigenic transformation of human bronchial epithelial cells mediated by NF-κB. PLoS One 2012; 7:e51690. [PMID: 23227270 PMCID: PMC3515562 DOI: 10.1371/journal.pone.0051690] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 11/05/2012] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE Chronic respiratory inflammation has been associated with lung cancer. Tumor-associated macrophages (TAMs) play a critical role in the formation of inflammation microenvironment. We sought to characterize the role of TAMs in coal tar pitch extract (CTPE)-induced tumorigenic transformation of human bronchial epithelial cells and the underlying mechanisms. METHODS The expression of TAMs-specific CD68 in lung cancer tissues and paired adjacent tissues from cancer patients was determined using immunostaining. Co-culture of human bronchial epithelial cells (BEAS-2B) and macrophage-like THP-1 cells were conducted to evaluate the promotive effect of macrophages on CTPE-induced tumorigenic transformation of BEAS-2B cells. BEAS-2B cells were first treated with 2.4 µg/mL CTPE for 72 hours. After removal of CTPE, the cells were continuously cultured either with or without THP-1 cells and passaged using trypsin-EDTA. Alterations of cell cycle, karyotype, colony formation in soft agar and tumor xenograft growth in nude mice of BEAS-2B cells at passages 10, 20 and 30, indicative of tumorigenecity, were determined, respectively. In addition, mRNA and protein levels of NF-κB in BEAS-2B cells were measured with RT-PCR and western blot, respectively. B(a)P was used as the positive control. RESULTS The over-expression of TAMs-specific CD68 around lung tumor tissues was detected and associated with lung cancer progression. The tumorigenic alterations of BEAS-2B cells including increase in cell growth rate, number of cells with aneuploidy, clonogenicity in soft agar, and tumor size in nude mice in vivo occurred at passage 10, becoming significant at passages 20 and 30 of the co-culture following CTPE removal in compared to BEAS-2B cells alone. In addition, the expression levels of NF-κB in BEAS-2B cells were positively correlated to the malignancy of BEAS-2B cells under different conditions of treatment. CONCLUSION The presence of macrophages facilitated CTPE-induced tumorigenic transformation of BEAS-2B cells, which may be mediated by NF-κB.
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Affiliation(s)
- Feifei Feng
- Department of Occupational and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China.
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Young RP, Hopkins RJ, Gamble GD. Clinical applications of gene-based risk prediction for lung cancer and the central role of chronic obstructive pulmonary disease. Front Genet 2012; 3:210. [PMID: 23087706 PMCID: PMC3472507 DOI: 10.3389/fgene.2012.00210] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Accepted: 09/26/2012] [Indexed: 01/14/2023] Open
Abstract
Lung cancer is the leading cause of cancer death worldwide and nearly 90% of cases are attributable to smoking. Quitting smoking and early diagnosis of lung cancer, through computed tomographic screening, are the only ways to reduce mortality from lung cancer. Recent epidemiological studies show that risk prediction for lung cancer is optimized by using multivariate risk models that include age, smoking exposure, history of chronic obstructive pulmonary disease (COPD), family history of lung cancer, and body mass index. It has also been shown that COPD predates lung cancer in 65–70% of cases, conferring a four- to sixfold greater risk of lung cancer compared to smokers with normal lung function. Genome-wide association studies of smokers have identified a number of genetic variants associated with COPD or lung cancer. In a case–control study, where smokers with normal lungs were compared to smokers who had spirometry-defined COPD or histology confirmed lung cancer, several of these variants were shown to overlap, conferring the same susceptibility or protective effects on both COPD and lung cancer (independent of COPD status). In this perspective article, we show how combining clinical data with genetic variants can help identify heavy smokers at the greatest risk of lung cancer. Using this approach, we found that gene-based risk testing helped engage smokers in risk mitigating activities like quitting smoking and undertaking lung cancer screening. We suggest that such an approach could facilitate the targeted selection of smokers for cost-effective life-saving interventions.
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Affiliation(s)
- R P Young
- Faculty of Medical and Health Sciences, and Biological Sciences, University of Auckland Auckland, New Zealand
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El-Zein RA, Young RP, Hopkins RJ, Etzel CJ. Genetic predisposition to chronic obstructive pulmonary disease and/or lung cancer: important considerations when evaluating risk. Cancer Prev Res (Phila) 2012; 5:522-7. [PMID: 22491518 DOI: 10.1158/1940-6207.capr-12-0042] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is defined as a disease causing an airflow limitation that is not fully reversible. COPD is phenotypically complex and characterized by small-airway disease and/or emphysema that result from the interaction between host genetic susceptibility and environmental exposures. As in lung cancer, smoking exposure is the most important risk factor for the development of COPD, accounting for 80% to 90% of all cases. COPD affects an estimated 8% to 10% of the general adult population, 15% to 20% of the smoking population, and 50% to 80% of lung cancer patients (with substantial smoking histories). In prospective studies, COPD has been found to be an independent risk factor for lung cancer, conferring a three- to 10-fold increased risk of lung cancer when compared with smokers without COPD. These findings suggest that smokers have a host susceptibility to COPD alone, COPD and lung cancer (i.e., overlap), and lung cancer in the absence of COPD. This minireview focuses on important points that need to be addressed when studying genetic susceptibility factors for COPD and its complex relationship with susceptibility to lung cancer.
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Affiliation(s)
- Randa A El-Zein
- Department of Epidemiology, Division of Cancer Prevention, The University of Texas MD Anderson Cancer Center, 1155 Pressler Street, #1340, Houston, TX 77030, USA.
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TAKAHASHI KAZUHISA, EVES NEILD, PIPER AMANDA, SONG YUANLIN, MAHER TOBYM. Year in review 2011: Acute lung injury, interstitial lung diseases, physiology, sleep and lung cancer. Respirology 2012; 17:554-62. [DOI: 10.1111/j.1440-1843.2012.02127.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Chronic obstructive pulmonary disease: a complex comorbidity of lung cancer. JOURNAL OF COMORBIDITY 2011; 1:45-50. [PMID: 29090135 PMCID: PMC5556420 DOI: 10.15256/joc.2011.1.5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 11/28/2011] [Indexed: 11/30/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a major burden throughout the world. It is associated with a significantly increased incidence of lung cancer and may influence treatment options and outcome. Impaired lung function confirming COPD is an independent risk factor for lung cancer. Oxidative stress and inflammation may be a key link between COPD and lung cancer, with numerous molecular markers being analysed to attempt to understand the pathway of lung cancer development. COPD negatively influences the ability to deliver radical treatment options, so attempts must be made to look for alternative methods of treating lung cancer, while aiming to manage the underlying COPD. Detailed assessment and management plans utilising the multidisciplinary team must be made for all lung cancer patients with COPD to provide the best care possible. Journal of Comorbidity 2011;1:45–50
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Abstract
Two frontline MS technologies, which have recently gained much attention, are discussed within the scope of this review. Besides a brief summary on the contemporary state of lung cancer and chronic obstructive pulmonary disease, the principles of multiple reaction monitoring and matrix assisted laser desorption ionization (MALDI) MS imaging are presented. A comprehensive overview of quantitative mass spectrometry applications is provided, covering multiple reaction monitoring assay developments for analysis of proteins (biomarkers) and low-molecular-weight compounds (drugs) with a special focus on the disease areas of lung cancer and chronic obstructive pulmonary disease. The MALDI-MS imaging applications are discussed similarly, providing references to studies conducted on lung tissues in order to localize drug compounds and protein biomarkers.
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