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Zandwijk NV, Frank AL, Reid G, Dimitri Røe O, Amos CI. Asbestos-Related lung Cancer: An underappreciated oncological issue. Lung Cancer 2024; 194:107861. [PMID: 39003938 DOI: 10.1016/j.lungcan.2024.107861] [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: 12/11/2023] [Revised: 06/19/2024] [Accepted: 06/22/2024] [Indexed: 07/16/2024]
Abstract
Asbestos, a group of class I (WHO) carcinogenic fibers, is the main cause of mesothelioma. Asbestos inhalation also increases the risk to develop other solid tumours with lung cancer as the most prominent example [91]. The incidence of asbestos-related lung cancer (ARLC) is estimated to be to six times larger than the mesothelioma incidence thereby becoming an important health issue [86]. Although the pivotal role of asbestos in inducing lung cancer is well established, the precise causal relationships between exposures to asbestos, tobacco smoke, radon and 'particulate' (PM2.5) air pollution remain obscure and new knowledge is needed to establish appropriate preventive measures and to tailor existing screening practices[22,61,65]. We hypothesize that a part of the increasing numbers of lung cancer diagnoses in never-smokers can be explained by (historic and current) exposures to asbestos as well as combinations of different forms of air pollution (PM2.5, asbestos and silica).
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Affiliation(s)
- Nico van Zandwijk
- Sydney Local Health District (SLHD), Department of Cell and Molecular Therapies, Royal, Prince Alfred Hospital, Camperdown, NSW 2050, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia.
| | - Arthur L Frank
- School of Public Health of Drexel, University, Philadelphia, PA, USA
| | - Glen Reid
- Department of Pathology, Otago Medical, School, University of Otago, Dunedin, New Zealand
| | - Oluf Dimitri Røe
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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2
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van Zandwijk N, Frank AL. A multidisciplinary review of several aspects of Asbestos-Related Lung Cancer (ARLC). Lung Cancer 2024; 189:107474. [PMID: 38341295 DOI: 10.1016/j.lungcan.2024.107474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Affiliation(s)
- Nico van Zandwijk
- Department of Cell and Molecular Therapies, Royal Prince Alfred Hospital, Missenden Rd, 2050 NSW, Camperdown, Australia; University of Sydney, Faculty of Medicine and Health, Australia.
| | - Arthur L Frank
- School of Public Health of Drexel University, Philadelphia, USA
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3
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Li X, Chen Y, Li X, Wang M, Xie W, Ding D, Kong L, Jiang D, Long T, Deng S. Asbestos-Environment Pollution Characteristics and Health-Risk Assessment in Typical Asbestos-Mining Area. TOXICS 2023; 11:494. [PMID: 37368594 DOI: 10.3390/toxics11060494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/19/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023]
Abstract
Asbestos has been confirmed as a major pollutant in asbestos-mining areas that are located in western China. In general, asbestos-fibre dust will is released into the environment due to the effect of intensive industrial activities and improper environmental management, such that the health of residents in and around mining areas is jeopardised. A typical asbestos mining area served as an example in this study to analyse the content and fibre morphology of asbestos in soil and air samples in the mining area. The effects of asbestos pollution in and around the mining areas on human health were also assessed based on the U.S. Superfund Risk Assessment Framework in this study. As indicated by the results, different degrees of asbestos pollutions were present in the soil and air, and they were mainly concentrated in the mining area, the ore-dressing area, and the waste pile. The concentration of asbestos in the soil ranged from 0.3% to 91.92%, and the concentration of asbestos fibres in the air reached 0.008-0.145 f·cc-1. The results of the scanning-electron microscope (SEM) energy suggested that the asbestos was primarily strip-shaped, short columnar, and granular, and the asbestos morphology of the soils with higher degrees of pollution exhibited irregular strip-shaped fibre agglomeration. The excess lifetime cancer risk (ELCR) associated with the asbestos fibres in the air of the mining area was at an acceptable level (10-4-10-6), and 40.6% of the monitoring sites were subjected to unacceptable non-carcinogenic risks (HQ > 1). Moreover, the waste pile was the area with the highest non-carcinogenic risk, followed by the ore dressing area, a residential area, and a bare-land area in descending order. In the three scenarios of adult offices or residences in the mining area, adults' outdoor activities in the peripheral residence areas, and children's outdoor activities, the carcinogenic-and non-carcinogenic-risk-control values in the air reached 0.1438, 0.2225 and 0.1540 f·cc-1, and 0.0084, 0.0090 and 0.0090 f·cc-1, respectively. The results of this study will lay a scientific basis for the environmental management and governance of asbestos polluted sites in China.
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Affiliation(s)
- Xuwei Li
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Yun Chen
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Xuzhi Li
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Mengjie Wang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Wenyi Xie
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Da Ding
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Lingya Kong
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Dengdeng Jiang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Tao Long
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
| | - Shaopo Deng
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing 210042, China
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van Zandwijk N, Marshall HM, Fong KM. Lung cancer: Removing toxic dust from our environment. Respirology 2023; 28:511-512. [PMID: 37105901 DOI: 10.1111/resp.14512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023]
Affiliation(s)
- Nico van Zandwijk
- Department of Cell and Molecular Therapies, Royal Prince Alfred Hospital/Sydney Local Health District, Camperdown, New South Wales, Australia
- Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Henry M Marshall
- The Prince Charles Hospital and Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Kwun M Fong
- The Prince Charles Hospital and Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
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Paustenbach D, Brew D, Ligas S, Heywood J. A critical review of the 2020 EPA risk assessment for chrysotile and its many shortcomings. Crit Rev Toxicol 2021; 51:509-539. [PMID: 34651555 DOI: 10.1080/10408444.2021.1968337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
From 2018 to 2020, the United States Environmental Protection Agency (EPA) performed a risk evaluation of chrysotile asbestos to evaluate the hazards of asbestos-containing products (e.g. encapsulated products), including brakes and gaskets, allegedly currently sold in the United States. During the public review period, the EPA received more than 100 letters commenting on the proposed risk evaluation. The Science Advisory Committee on Chemicals (SACC), which peer reviewed the document, asked approximately 100 questions of the EPA that they expected to be addressed prior to publication of the final version of the risk assessment on 30 December 2020. After careful analysis, the authors of this manuscript found many significant scientific shortcomings in both the EPA's draft and final versions of the chrysotile risk evaluation. First, the EPA provided insufficient evidence regarding the current number of chrysotile-containing brakes and gaskets being sold in the United States, which influences the need for regulatory oversight. Second, the Agency did not give adequate consideration to the more than 200 air samples detailed in the published literature of auto mechanics who changed brakes in the 1970-1989 era. Third, the Agency did not consider more than 15 epidemiology studies indicating that exposures to encapsulated chrysotile asbestos in brakes and gaskets, which were generally in commerce from approximately 1950-1985, did not increase the incidence of any asbestos-related disease. Fourth, the concern about chrysotile asbestos being a mesothelioma hazard was based on populations in two facilities where mixed exposure to chrysotile and commercial amphibole asbestos (amosite and crocidolite) occurred. All 8 cases of pleural cancer and mesothelioma in the examined populations arose in facilities where amphiboles were present. It was therefore inappropriate to rely on these cohorts to predict the health risks of exposure to short fiber chrysotile, especially of those fibers filled with phenolic resins. Fifth, the suggested inhalation unit risk (IUR) for chrysotile asbestos was far too high since it was not markedly different than for amosite, despite the fact that the amphiboles are a far more potent carcinogen. Sixth, the approach to low dose modeling was not the most appropriate one in several respects, but, without question, it should have accounted for the background rate of mesothelioma in the general population. Just one month after this assessment was published, the National Academies of Science notified the EPA that the Agency's systematic review process was flawed. The result of the EPA's chrysotile asbestos risk evaluation is that society can expect dozens of years of scientifically unwarranted litigation. Due to an aging population and because some fraction of the population is naturally predisposed to mesothelioma given the presence of various genetic mutations in DNA repair mechanisms (e.g. BAP1 and others), the vast majority of mesotheliomas in the post-2035 era are expected to be spontaneous and unrelated in any way to exposure to asbestos. Due to the EPA's analysis, it is our belief that those who handled brakes and gaskets in the post-1985 era may now believe that those exposures were the cause of their mesothelioma, when a risk assessment based on the scientific weight of evidence would indicate otherwise.
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Affiliation(s)
| | - David Brew
- Paustenbach and Associates, Jackson, WY, USA
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Luo Y, Deng J, Cui Y, Li T, Bai J, Huang L, Sun Y, Dong F, Zhang Q. Long-term instillation to four natural representative chrysotile of China induce the inactivation of P53 and P16 and the activation of C-JUN and C-FOS in the lung tissues of Wistar rats. Toxicol Lett 2020; 333:140-149. [PMID: 32755622 DOI: 10.1016/j.toxlet.2020.07.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/25/2020] [Accepted: 07/29/2020] [Indexed: 12/23/2022]
Abstract
Chrysotile is the only type of asbestos still widely exploited, and all kinds of asbestos including chrysotile was classified as a group I carcinogen by the IARC. There is a wealth of evidence that chrysotile can cause a range of cancers, including cancer of the lung, larynx, ovary, and mesothelioma. As the second largest chrysotile producer, China is at great risk of occupational exposure. Moreover, our previous experiment and some other studies have shown that the toxicity of mineral fibre from various mining areas may be different. To explore the oncogenic potential of chrysotile from different mining areas of China, Wistar rats were administered 0.5 mL chrysotile asbestos suspension of 2.0 mg/mL (from Akesai, Gansu; Mangnai, Qinghai; XinKang, Sichuan; and Shannan, Shaanxi) dissolved in saline by intratracheal instillation once-monthly and were sacrificed at 1 mo, 6 mo, and 12 mo. Our results found that chrysotile caused lung inflammation and lung tissue damage. Moreover, prolonged exposure of chrysotile can induce inactivation of the tumor suppressor gene P53 and P16 and activation of the protooncogene C-JUN and C-FOS both in the messenger RNA and protein level. In addition, chrysotile from Shannan and XinKang has a stronger effect which may link to cancer than that from Akesai and Mangnai.
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Affiliation(s)
- Yingyu Luo
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Jianjun Deng
- Medical Laboratory, Sichuan Mianyang 404 Hospital, No.2 Affiliated Hospital of North Sichuan Medical College, Mianyang 621000, Sichuan Province, China
| | - Yan Cui
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Tao Li
- Key Laboratory of Ministry of Education, Myocardial electrical laboratory, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Jun Bai
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Liuwen Huang
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yaochuan Sun
- School of Earth Science and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and the Resource Recycle, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China.
| | - Qingbi Zhang
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, China.
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Prenatal Exposure to Endocrine-disrupting Chemicals in Relation to Autism Spectrum Disorder and Intellectual Disability. Epidemiology 2019; 30:418-426. [PMID: 30789431 DOI: 10.1097/ede.0000000000000983] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Exposure to endocrine disruptors is unavoidable. Many such compounds are suspected to impact neurologic development of children, but most studies conducted have considered effects of individual chemicals in isolation. Because exposures co-occur, it is important to consider their health impacts in a single regression framework. METHODS We applied Bayesian statistical tools (including shared mean and mixture priors for 25 unique chemicals) to study independent associations of endocrine disruptor biomarkers with autism spectrum disorder (ASD) (n = 491) and intellectual disability (n = 155), compared with 373 general population controls, in the Early Markers for Autism study. We measured biomarkers in maternal serum collected and stored from midpregnancy and considered them individually or as a class (i.e., summed polychlorinated biphenyls). We adjusted all models for original matching factors (child sex and month and year of birth), maternal age, maternal race/ethnicity, parity, and maternal education at the time samples were collected. We estimated the change in the odds of ASD or intellectual disability per 1 SD increase in the z-score of measured biomarker concentration for each chemical. RESULTS Odds of ASD and intellectual disability did not change with increasing concentration for any specific endocrine disruptor. The effect estimates for each chemical were centered on or near an odds ratio of 1.00 in both models where we applied a shared mean or a mixture prior. CONCLUSION Our mixtures analyses do not suggest an independent relationship with ASD or intellectual disability with any of the 25 chemicals examined together in this mixtures analysis.
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Tang H, Bai Y, Pan G, Wang X, Wei Y, Yang Z, Zhao J. Interleukin-6 and insulin-like growth factor-1 synergistically promote the progression of NSCLC. Autoimmunity 2019; 51:399-407. [PMID: 30604632 DOI: 10.1080/08916934.2018.1550079] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Hexiao Tang
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuquan Bai
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Gaofeng Pan
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xianguo Wang
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yanhong Wei
- Department of Nephrology, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zetian Yang
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jinping Zhao
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
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9
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Bai Y, Shen W, Zhu M, Zhang L, Wei Y, Tang H, Zhao J. Combined detection of estrogen and tumor markers is an important reference factor in the diagnosis and prognosis of lung cancer. J Cell Biochem 2018; 120:105-114. [PMID: 30216488 DOI: 10.1002/jcb.27130] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 05/07/2018] [Indexed: 11/06/2022]
Abstract
The correlation between lung cancer tumor markers and sex differences in lung cancer remains a clinical problem that is worthy of further study. This study investigated the significance of the combined detection of 17β-estrogen (E2) and tumor markers in the diagnosis and prognosis of lung cancer. A total of 174 patients, including 117 patients with non-small-cell lung cancer (NSCLC) and 57 patients with benign pulmonary lesions (BPL), were enrolled. An enzyme-linked immunosorbent assay was used to detect the expression of E2, carcinoembryonic antigen (CEA), neuron-specific enolase (NSE), and cytokeratin 19 fragment antigen 21-1 (CYFRA21-1) in patients with NSCLC and BPL to analyze the correlation between E2 and CEA, NSE or CYFRA21-1 expression, and its correlation with clinicopathological features and prognosis. The expression of tumor markers was then examined in different lung cancer cells (A549, H1795, H460, and SK-MES-1). The expression of tumor markers was detected by a real-time reverse transcription-polymerase chain reaction (RT-PCR) and Western blot analysis. The expressions of p-p44/42 mitogen-activated protein kinase (MAPK) and phospho-AKT (p-AKT) were detected by Western blot analysis. The expression levels of E2, CEA, NSE, and CYFRA21-1 in patients with NSCLC were significantly higher than those in patients with BPL ( P < .05); E2 was positively correlated with tumor markers ( P < .01). Patients with a high expression of E2 and tumor markers showed a poor prognosis ( P < .05). RT-quantitative PCR and Western blot analysis showed that the expression levels of CEA, NSE, CYFRA21-1, p-p44/42 MAPK, and p-AKT in the E2 group were higher than those in the other groups ( P < .05). These studies indicate that the interaction of E2 and tumor markers can significantly improve the role of tumor markers in the diagnosis and prognosis of lung cancer.
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Affiliation(s)
- Yuquan Bai
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wulin Shen
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Minglin Zhu
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Li Zhang
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yanhong Wei
- Department of Nephrology, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hexiao Tang
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jinping Zhao
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
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10
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Yuquan B, Hexiao T, Laiyi W, Gaofeng P, Xuefeng Z, Ming X, Yanhong W, Li Z, Jinping Z. Interaction between epidermal growth factor receptor and interleukin-6 receptor in NSCLC progression. J Cell Biochem 2018; 120:872-881. [PMID: 30132982 DOI: 10.1002/jcb.27448] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 07/16/2018] [Indexed: 12/28/2022]
Abstract
Even though the interaction between epithelial growth factor receptor (EGFR) and interleukin-6 receptor (IL-6R) has been found in many tumors, there is a lack of relevant in-depth study of lung cancer. The following study investigates the interaction of EGFR and IL-6R in lung cancer. In the current study, EGFR, IL-6, and glycoprotein 130 (GP130) were highly expressed in non-small cell lung cancer (NSCLC) tissue samples and were associated with clinicopathological features and poor prognosis of patients with NSCLC. Furthermore, the effect of EGF and IL-6 on biological behavior of lung cancer cells (cell proliferation, invasion, cycle, and apoptosis) and the expression of EGFR, GP130, p-protein kinase B (p-AKT), and p-p44/42 mitogen-activated protein kinase (p-p44/42 MAPK) was significantly stronger compared with other treatment groups (all P < 0.05). These results suggest that EGFR and IL-6R have synergistic effects on NSCLC progression. This could help to solve the problem of EGFR inhibitors in the treatment of lung cancer resistance and improve the efficacy of current treatment for lung cancer through a combination of EGFR and IL-6R signaling pathways.
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Affiliation(s)
- Bai Yuquan
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Donghu Road, Wuhan, China
| | - Tang Hexiao
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Donghu Road, Wuhan, China
| | - Wan Laiyi
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Donghu Road, Wuhan, China
| | - Pan Gaofeng
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Donghu Road, Wuhan, China
| | - Zhou Xuefeng
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Donghu Road, Wuhan, China
| | - Xu Ming
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Donghu Road, Wuhan, China
| | - Wei Yanhong
- Department of Nephrology, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Shengli Street, Wuhan, China
| | - Zhang Li
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Donghu Road, Wuhan, China
| | - Zhao Jinping
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Donghu Road, Wuhan, China
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11
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Zeng Y, Cui Y, Ma J, Huo T, Dong F, Zhang Q, Deng J, Zhang X, Yang J, Wang Y. Lung injury and expression of p53 and p16 in Wistar rats induced by respirable chrysotile fiber dust from four primary areas of China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:22389-22399. [PMID: 28963651 DOI: 10.1007/s11356-017-0279-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 09/19/2017] [Indexed: 06/07/2023]
Abstract
Chrysotile products were widely used in daily life, and a large amount of respirable dust was produced in the process of production and application. At present, there was seldom research on the safety of chrysotile fiber dust, and whether its long-term inhalation can lead to lung cancer was unknown. In order to determine whether respirable chrysotile fiber dust of China caused lung cancer, four major chrysotile-producing mine areas in China were selected for this study. Chrysotile fibers were prepared into respirable dust. Particle size was measured by laser particle analysis, morphology was observed by scanning electron microscope, chrysotile fiber phase was analyzed by X-ray diffraction, trace chemical elements were identified by X-ray fluorescence, and the structure and the active groups of the dust were determined after grinding by Fourier transform infrared spectroscopy. Male Wistar rats were exposed to non-exposed intratracheal instillation with different concentrations of chrysotile fiber dust. The rats were weighed after 1, 3, and 6 months, then the lung tissues were separated, the lung morphology was observed, and the pulmonary index was calculated. Pathological changes in lung tissues were observed by optical microscope after the HE staining of tissues, and the gene expression of p53 and p16 was determined by reverse transcription polymerase chain reaction. First, the results showed that the particle sizes of the four fibers were less than 10 μm. Four primary areas of chrysotile had similar fibrous structure, arranged in fascicles, or mixed with thin chunks of material. Second, the elementary composition of the four fibers was mainly chrysotile, and the structure and the active groups of the grinding dust were not damaged. Third, the weights of the treated rats were obviously lower, and the lung weights and the pulmonary index increased significantly (P < 0.05). Fourth, the treated Wistar rat lung tissues revealed different degrees of congestion, edema, inflammatory cell infiltration, and mild fibrosis. Fifth, the p53 and p16 genes decreased in the Mangnai group after 1 month of exposure, and the other groups increased. The expression of p53 and p16 in each group decreased significantly after 6 months (P < 0.05). In conclusion, the respirable chrysotile fiber dust from the four primary areas of China had the risk of causing lung injury, and these changes may be related to the physical and chemical characteristics of chrysotile from different production areas.
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Affiliation(s)
- Yali Zeng
- Department of Clinical Laboratory, 404 Hospital of Mianyang, Mianyang, 621000, Sichuan, People's Republic of China
| | - Yan Cui
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Ji Ma
- Department of Clinical Laboratory, 404 Hospital of Mianyang, Mianyang, 621000, Sichuan, People's Republic of China
| | - Tingting Huo
- Key Laboratory of Solid Waste Treatment and the Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, People's Republic of China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and the Resource Recycle, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, People's Republic of China.
| | - Qingbi Zhang
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Jianjun Deng
- Department of Clinical Laboratory, 404 Hospital of Mianyang, Mianyang, 621000, Sichuan, People's Republic of China.
| | - Xu Zhang
- Department of Clinical Laboratory, 404 Hospital of Mianyang, Mianyang, 621000, Sichuan, People's Republic of China
| | - Jie Yang
- Department of Clinical Laboratory, 404 Hospital of Mianyang, Mianyang, 621000, Sichuan, People's Republic of China
| | - Yulin Wang
- Department of Clinical Laboratory, 404 Hospital of Mianyang, Mianyang, 621000, Sichuan, People's Republic of China
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12
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Tang H, Bai Y, Shen W, Wei Y, Xu M, Zhou X, Zhao J. Clinical significance of combined detection of interleukin-6 and tumour markers in lung cancer. Autoimmunity 2018; 51:191-198. [PMID: 29869537 DOI: 10.1080/08916934.2018.1477133] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Hexiao Tang
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yuquan Bai
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Wulin Shen
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yanhong Wei
- Department of Nephrology, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ming Xu
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xuefeng Zhou
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jinping Zhao
- Department of Thoracic and Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
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Hamra GB, Buckley JP. Environmental exposure mixtures: questions and methods to address them. CURR EPIDEMIOL REP 2018; 5:160-165. [PMID: 30643709 PMCID: PMC6329601 DOI: 10.1007/s40471-018-0145-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
PURPOSE OF THIS REVIEW This review provides a summary of statistical approaches that researchers can use to study environmental exposure mixtures. Two primary considerations are the form of the research question and the statistical tools best suited to address that question. Because the choice of statistical tools is not rigid, we make recommendations about when each tool may be most useful. RECENT FINDINGS When dimensionality is relatively low, some statistical tools yield easily interpretable estimates of effect (e.g., risk ratio, odds ratio) or intervention impacts. When dimensionality increases, it is often necessary to compromise this interpretablity in favor of identifying interesting statistical signals from noise; this requires applying statistical tools that are oriented more heavily towards dimension reduction via shrinkage and/or variable selection. SUMMARY The study of complex exposure mixtures has prompted development of novel statistical methods. We suggest that further validation work would aid practicing researchers in choosing among existing and emerging statistical tools for studying exposure mixtures.
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Affiliation(s)
- Ghassan B Hamra
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, MD, USA
| | - Jessie P Buckley
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, MD, USA
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, MD, USA
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