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Yao J, Li Y, Wang S, Dong X, Feng L, Gong X, Chen T, Lai L, Xu H, Jiang Z, Chen J, Xia H, Li G, Lou J. Exosomal proteomics and cytokine analysis distinguish silicosis cases from controls. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 357:124469. [PMID: 38945194 DOI: 10.1016/j.envpol.2024.124469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 07/02/2024]
Abstract
Occupational silica exposure caused a serious disease burden of silicosis. There is currently a lack of sensitive and effective biomarkers for silicosis, and the pathogenesis of silicosis is unclear. Exosomes were significant in the pathogenesis of silicosis, and our study was carried out from exosomal proteomics and cytokine analysis. Firstly, the plasma levels of cytokines were detected using a Luminex multiplex assay, and the results indicated that the plasma levels of TNF-α, IL-6, CCL2, CXCL10, and PDGF-AB were significantly higher in silicosis patients than in silica-exposed workers and controls (p < 0.05). After correlation analysis, the plasma levels of cytokines were positively correlated with exosomal protein concentration. Secondly, data-independent acquisition (DIA) was performed on plasma-derived exosomes in the screening population, which identified 88, 151, 293, and 53 differentially expressed proteins (DEPs) in exposure/control, silicosis/control, silicosis/exposure, and silicosis stage Ⅲ/silicosis stage Ⅰ groups respectively. After parallel reaction monitoring (PRM) in an independent verification population, the results indicated that the changing trend of 15 DEPs was coincident in screening and verification results. The result of correlation analysis indicated that the plasma level of TNF-α was negatively correlated with the expression of exosomal DSP, KRT78, SERPINB12, and CALML5. The AUC of combined determination of TNF-α and CALML5 reached 0.900, with a sensitivity of 0.714 and a specificity of 0.933. Overall, our study revealed the exosomal proteomic profiling of silicosis patients, silica-exposed workers, and controls, indicating that exosomes were significant in the pathogenesis of silicosis. It also revealed that the combined of the plasma levels of cytokines and the expression of exosomal DEPs could increase determination efficiency. This study provided directions for the development of silicosis biomarkers and a scientific basis for the pathogenesis research of silicosis in the future.
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Affiliation(s)
- Jiahui Yao
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Yongxin Li
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Shujuan Wang
- Department of Occupational Medicine, Hangzhou Red Cross Hospital, Hangzhou, Zhejiang Province, China
| | - Xiaowen Dong
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Lingfang Feng
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Xiaoxue Gong
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Tiancheng Chen
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Luqiao Lai
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Huadong Xu
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Zhaoqiang Jiang
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Junfei Chen
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Hailing Xia
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China
| | - Guohui Li
- Department of Occupational Medicine, Hangzhou Red Cross Hospital, Hangzhou, Zhejiang Province, China.
| | - Jianlin Lou
- School of Public Health, Hangzhou Medical Collage, Hangzhou, Zhejiang Province, China; School of Medicine, and The First Affiliated Hospital, Huzhou University, Huzhou, China.
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Davaajav K, Dagva D, Dashtseren I, Takahashi Y, Nakayama T. Elevated Levels of the Cancer Marker Neuron-Specific Enolase in a Patient With Coexisting Silicosis and Sarcoidosis. Cureus 2024; 16:e61130. [PMID: 38919222 PMCID: PMC11198998 DOI: 10.7759/cureus.61130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2024] [Indexed: 06/27/2024] Open
Abstract
In a periodical medical checkup, a 39-year-old Mongolian underground miner was diagnosed with silicosis based on chest radiography, computed tomography (CT), and work history. Chest radiography showed diffuse bilateral rounded nodules in both lung fields, with upper lobe dominance and large opacities in the right upper zone. Chest CT presented conglomerated massive changes in the right upper lobe and the coalescence of small nodules in the left upper lung. In the blood test, serum levels of the lung cancer marker neuron-specific enolase (NSE) were elevated (24.58 ng/mL). Carcinoembryonic antigen (CEA) and cytokeratin 19 fragment (CYFRA 21-1) levels were within the reference range. Subsequent to the suspicion of a tumour in the right upper lobe, a right upper lobectomy was performed. The histopathological examination of the lung specimen revealed the coalescence of numerous silica nodules, accompanied by indications of associated sarcoidosis. The histological features suggested the presence of two concurrent pathological processes: silicosis and sarcoidosis. This case demonstrated the combination of three clinical conditions diagnosed in one patient, including complicated silicosis associated with sarcoidosis and elevated serum NSE levels. This case report may serve as a foundation for future investigations exploring the potential of NSE as a marker for silicosis.
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Affiliation(s)
| | - Dolgormaa Dagva
- Forensic Medicine, National Forensic Agency of Mongolia, Ulaanbaatar, MNG
| | - Ichinnorov Dashtseren
- Pulmonology and Allergology, Mongolian National University of Medical Sciences, School of Medicine, Ulaanbaatar, MNG
| | | | - Takeo Nakayama
- Health Informatics, Kyoto University, Graduate School of Medicine, Kyoto, JPN
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Ba C, Jiang C, Wang H, Shi X, Jin J, Fang Q. Prognostic value of serum oncomarkers for patients hospitalized with acute exacerbation of interstitial lung disease. Ther Adv Respir Dis 2024; 18:17534666241250332. [PMID: 38757948 PMCID: PMC11102678 DOI: 10.1177/17534666241250332] [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: 10/08/2023] [Accepted: 04/11/2024] [Indexed: 05/18/2024] Open
Abstract
BACKGROUND Different types of inflammatory processes and fibrosis have been implicated in the pathogenesis of interstitial lung disease (ILD), a heterogeneous, diffuse, parenchymal lung disease. Acute exacerbation (AE) of ILD is characterized by significant respiratory deterioration and is associated with high mortality rates. Several serum oncomarkers have been used to determine the prognosis of ILD; however, the prognostic value of serum oncomarker levels in patients with AE-ILD remains unclear. OBJECTIVE To evaluate the prognostic value of serum oncomarker levels in patients with AE-ILD and its main subtypes. DESIGN Retrospective study. METHODS The serum levels of 8 oncomarkers in 281 patients hospitalized with AE-ILD at our institution between 2017 and 2022 were retrospectively reviewed. The baseline characteristics and serum oncomarker levels were compared between the survival and non-survival groups of AE-ILD and its main subtypes. Multivariate logistic regression analysis was performed to identify independent prognosis-related markers, and the best prognostic predictor was analyzed using receiver operating characteristic curve (ROC) analysis. RESULT Idiopathic pulmonary fibrosis (IPF; n = 65), idiopathic nonspecific interstitial pneumonia (iNSIP; n = 26), and connective tissue disease-associated interstitial lung disease (CTD-ILD; n = 161) were the three main subtypes of ILD. The in-hospital mortality rate among patients with AE-ILD was 21%. The serum oncomarker levels of most patients with AE-ILD and its main subtypes in the non-survival group were higher than those in the survival group. Multivariate analysis revealed that ferritin and cytokeratin 19 fragments (CYFRA21-1) were independent prognostic risk factors for patients hospitalized with AE-ILD or AE-CTD-ILD. CYFRA21-1 was identified as an independent prognostic risk factor for patients hospitalized with AE-IPF or AE-iNSIP. CONCLUSION CYFRA21-1 may be a viable biomarker for predicting the prognosis of patients with AE-ILD, regardless of the underlying subtype of ILD. Ferritin has a prognostic value in patients with AE-ILD or AE-CTD-ILD.
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Affiliation(s)
- Cuirong Ba
- Department of Respiratory Medicine, Beijing Ditan Hospital, Capital Medical University, China
| | - Chunguo Jiang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Huijuan Wang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xuhua Shi
- Department of Immunology and Rheumatology, Beijing Institute of Respiratory Medicine and Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Jiawei Jin
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- The Clinical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chaoyang Hospital Jingxi Branch, Capital Medical University, Beijing, China
| | - Qiuhong Fang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chaoyang Hospital, Capital Medical University, No. 8, Gongren Tiyuchang South Road, Chaoyang District, Beijing 100020, China
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Lombardi EMS, Mizutani RF, Terra-Filho M, Ubiratan de Paula S. Biomarkers related to silicosis and pulmonary function in individuals exposed to silica. Am J Ind Med 2023; 66:984-995. [PMID: 37615855 DOI: 10.1002/ajim.23528] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 06/21/2023] [Accepted: 08/06/2023] [Indexed: 08/25/2023]
Abstract
BACKGROUND The identification of markers that can facilitate the early diagnosis of silicosis has remained challenging. We evaluated the association of inflammatory markers with the presence of silicosis and lung function impairment in individuals exposed to silica. METHODS Individuals exposed and not exposed to silica were assessed by occupational history, clinical findings, lung function, chest imaging findings, and inflammatory markers. RESULTS Among 297 men evaluated, 51 were unexposed controls (G1), 149 were exposed to silica without silicosis (G2), and 97 were exposed to silica with silicosis (G3). Inflammatory marker levels were higher in G3 than in G2 and G1. Platelet/lymphocyte ratio (PLR), lactate dehydrogenase (LDH), soluble tumor necrosis factor II (sTNFRII), and macrophage inflammatory protein-4 (MIP-4) were associated with silicosis, and LDH, neutrophil/lymphocyte ratio (NLR), sTNFRII, monocyte chemoattractant protein-1 (MCP-1), soluble vascular cell adhesion molecule-1 (sVCAM-1), and fibrinogen were negatively associated with lung function. CONCLUSION Blood inflammatory markers are associated with silicosis and impaired lung function.
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Affiliation(s)
- Elisa M S Lombardi
- Divisao de Pneumologia, Instituto do Coraçao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, Brazil
| | - Rafael F Mizutani
- Divisao de Pneumologia, Instituto do Coraçao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, Brazil
| | | | - Santos Ubiratan de Paula
- Divisao de Pneumologia, Instituto do Coraçao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, Brazil
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Pohlen M, Carroll D, Prisk GK, Sawyer AJ. Overview of lunar dust toxicity risk. NPJ Microgravity 2022; 8:55. [PMID: 36460679 PMCID: PMC9718825 DOI: 10.1038/s41526-022-00244-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 11/03/2022] [Indexed: 12/04/2022] Open
Abstract
Lunar dust (LD), the component of lunar regolith with particle sizes less than 20 μm, covers the surface of the Moon. Due to its fineness, jagged edges, and electrostatic charge, LD adheres to and coats almost any surface it contacts. As a result, LD poses known risks to the proper functioning of electronic and mechanical equipment on the lunar surface. However, its mechanical irritancy and chemical reactivity may also pose serious health risks to humans by a number of mechanisms. While Apollo astronauts reported mild short-lived respiratory symptoms, the spectrum of health effects associated with high-dose acute exposure or chronic low-dose exposure are not yet well-understood. This paper explores known and potential human risks of exposure to LD which are thought to be important in planning upcoming lunar missions and planetary surface work.
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Affiliation(s)
| | - Danielle Carroll
- University of California, San Diego, USA
- University of California San Francisco, San Francisco, USA
- Translational Research Institute for Space Health (TRISH), Houston, USA
- Eastern Virginia Medical School, Norfolk, USA
| | | | - Aenor J Sawyer
- University of California San Francisco, San Francisco, USA.
- Translational Research Institute for Space Health (TRISH), Houston, USA.
- UC Space Health, University of California, San Francisco, USA.
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García-Núñez A, Jiménez-Gómez G, Hidalgo-Molina A, Córdoba-Doña JA, León-Jiménez A, Campos-Caro A. Inflammatory indices obtained from routine blood tests show an inflammatory state associated with disease progression in engineered stone silicosis patients. Sci Rep 2022; 12:8211. [PMID: 35581230 PMCID: PMC9114118 DOI: 10.1038/s41598-022-11926-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 04/25/2022] [Indexed: 02/08/2023] Open
Abstract
Patients with silicosis caused by occupational exposure to engineered stone (ES) present a rapid progression from simple silicosis (SS) to progressive massive fibrosis (PMF). Patient classification follows international rules based on radiology and high-resolution computed tomography (HRCT), but limited studies, if any, have explored biomarkers from routine clinical tests that can be used as predictors of disease status. Our objective was thus to investigate circulating biomarker levels and systemic inflammatory indices in ES silicosis patients whose exposure to ES dust ended several years ago. Ninety-one adult men, ex-workers in the manufacturing of ES, 53 diagnosed with SS and 38 with PMF, and 22 healthy male volunteers (HC) as controls not exposed to ES dust, were recruited. The following circulating levels of biomarkers like lactate dehydrogenase (LDH), angiotensin-converting-enzyme (ACE), protein C reactive (PCR), rheumatoid factor, alkaline phosphatase and fibrinogen were obtained from clinical reports after being measured from blood samples. As biochemical markers, only LDH (HC = 262 ± 48.1; SS = 315.4 ± 65.4; PMF = 337.6 ± 79.3 U/L), ACE (HC = 43.1 ± 18.4; SS = 78.2 ± 27.2; PMF = 86.1 ± 23.7 U/L) and fibrinogen (HC = 182.3 ± 49.1; SS = 212.2 ± 43.5; PMF = 256 ± 77.3 U/L) levels showed a significant sequential increase, not been observed for the rest of biomarkers, in the HC → SS → PMF direction. Moreover, several systemic inflammation indices neutrophil-to-lymphocyte ratio (NLR), lymphocyte-to-monocyte ratio (LMR), platelet-to-lymphocyte ratio (PLR), systemic inflammation response index (SIRI), systemic immune-inflammation index (SII), aggregate index of systemic inflammation (AISI) derived from whole blood cell counts showed significant differences between the HC, SS and PMF groups. All these biomarkers were analyzed using receiver operating characteristic (ROC) curves, and the results provided moderately high sensitivity and specificity for discriminating between ES silicosis patient groups and healthy controls. Our study reveals that some inflammatory biomarkers, easily available from routine blood analysis, are present in ES silicosis patients even several years after cessation of exposure to ES silica dust and they could help to know the progression of the disease.
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Affiliation(s)
- Alejandro García-Núñez
- Biomedical Research and Innovation Institute of Cadiz (INiBICA), 11009, Cádiz, Spain.,Research Unit, Puerta del Mar University Hospital, 11009, Cádiz, Spain
| | - Gema Jiménez-Gómez
- Biomedical Research and Innovation Institute of Cadiz (INiBICA), 11009, Cádiz, Spain.,Research Unit, Puerta del Mar University Hospital, 11009, Cádiz, Spain
| | - Antonio Hidalgo-Molina
- Biomedical Research and Innovation Institute of Cadiz (INiBICA), 11009, Cádiz, Spain.,Pulmonology, Allergy and Thoracic Surgery Department, Puerta del Mar University Hospital, 11009, Cádiz, Spain
| | - Juan Antonio Córdoba-Doña
- Biomedical Research and Innovation Institute of Cadiz (INiBICA), 11009, Cádiz, Spain.,Department of Preventive Medicine and Public Health, Jerez University Hospital, 11407, Jerez de la Frontera, Spain
| | - Antonio León-Jiménez
- Biomedical Research and Innovation Institute of Cadiz (INiBICA), 11009, Cádiz, Spain.,Pulmonology, Allergy and Thoracic Surgery Department, Puerta del Mar University Hospital, 11009, Cádiz, Spain
| | - Antonio Campos-Caro
- Biomedical Research and Innovation Institute of Cadiz (INiBICA), 11009, Cádiz, Spain. .,Research Unit, Puerta del Mar University Hospital, 11009, Cádiz, Spain. .,Genetics Area, Biomedicine, Biotechnology and Public Health Department, School of Marine and Environmental Sciences, University of Cadiz, 11510, Cádiz, Spain.
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7
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Huang HB, Huang JL, Xu XT, Huang KB, Lin YJ, Lin JB, Zhuang XB. Serum neuron-specific enolase: A promising biomarker of silicosis. World J Clin Cases 2021; 9:1016-1025. [PMID: 33644165 PMCID: PMC7896644 DOI: 10.12998/wjcc.v9.i5.1016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/12/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Silicosis is a type of chronic pulmonary fibrosis caused by long-term inhalation of silica dust particles. There has been no ideal biomarker for the diagnosis and differential diagnosis of silicosis until now. Studies have found that elevated neuron-specific enolase (NSE) concentration in the serum of silicosis patients is helpful for diagnosis and severity assessment of the disease. However, the number of cases in these studies was not enough to arouse attention.
AIM To investigate the clinical significance of serum NSE in the diagnosis and staging of silicosis.
METHODS From January 2017 to June 2019, 326 cases of silicosis confirmed in Quanzhou First Hospital Affiliated to Fujian Medical University were included in the silicosis group. A total of 328 healthy individuals or medical patients without silicosis were included in the control group. Serum NSE concentrations of all subjects were determined by electrochemical luminescence.
RESULTS There were no significant differences in sex, age, smoking index and complications between the silicosis and control groups. The mean serum NSE concentration was 26.57 ± 20.95 ng/mL in the silicosis group and 12.42 ± 2.68 ng/mL in the control group. The difference between the two groups was significant (U = 15187, P = 0.000). Among the 326 patients with silicosis, 103 had stage I silicosis, and the mean serum NSE concentration was 15.55 ± 6.23 ng/mL. The mean serum NSE concentration was 21.85 ± 12.05 ng/mL in 70 patients with stage II silicosis. The mean serum NSE concentration was 36.14 ± 25.72 ng/mL in 153 patients with stage III silicosis. Kruskal–Wallis H test suggested that the difference in serum NSE concentration in silicosis patients in the three groups was significant (H = 130.196, P = 0.000). Receiver operating characteristic curve analysis indicated that the area under the curve was 0.858 (95% confidence interval: 0.828-0.888; P = 0.000). When the NSE concentration was 15.82 ng/mL, the Jorden index was the largest, the sensitivity was 72%, and the specificity was 90%.
CONCLUSION Serum NSE concentration may be a promising biomarker for the diagnosis and assessment of severity of silicosis.
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Affiliation(s)
- Hong-Bo Huang
- Department of Pulmonary and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362000, Fujian Province, China
| | - Jun-Ling Huang
- Department of Pulmonary and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362000, Fujian Province, China
| | - Xiao-Ting Xu
- Department of Pulmonary and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362000, Fujian Province, China
| | - Kun-Bo Huang
- Department of Clinical Laboratory, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362000, Fujian Province, China
| | - Yi-Jian Lin
- Department of Pulmonary and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362000, Fujian Province, China
| | - Jie-Bin Lin
- Department of Internal Medicine, Infectious Disease Hospital of Quanzhou, Quanzhou 362000, Fujian Province, China
| | - Xi-Bin Zhuang
- Department of Pulmonary and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362000, Fujian Province, China
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Teng G, Nie X, Wang D. Association of pulmonary sequestration with elevated serum cancer antigen 125 levels: a case report. J Int Med Res 2020; 48:300060520903871. [PMID: 32043395 PMCID: PMC7110917 DOI: 10.1177/0300060520903871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Pulmonary sequestration is a rare congenital lung anomaly that is characterized by a nonfunctioning pulmonary parenchyma, which typically lacks connection to the tracheobronchial airways, and thus has an anomalous systemic blood supply. Here we report the case of a 37-year-old man who was diagnosed with pulmonary sequestration and also presented with high levels of the serum tumor marker cancer antigen 125 (CA125). Computed tomography of the chest indicated the presence of a heterogeneous mass with low attenuation in the right S10 region that had a single aberrant artery supplying blood from the descending aorta. The patient eventually underwent thoracoscopic surgery with resection of the right sequestrated lung. Immunohistochemistry showed positive staining for CA125 in bronchial epithelial and epithelioid cells. After surgery, CA125 levels returned to the normal range. In summary, this report describes a case of pulmonary sequestration associated with elevated serum CA125 levels, and further provides relevant literature for this presentation.
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Affiliation(s)
- Guojie Teng
- Department of Pulmonary and Critical Care Medicine, Xuanwu Hospital Capital Medical University, Beijing, China
| | - Xiuhong Nie
- Department of Pulmonary and Critical Care Medicine, Xuanwu Hospital Capital Medical University, Beijing, China
| | - Dandan Wang
- Departments of Pathology, Xuanwu Hospital Capital Medical University, Beijing, China
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9
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Zheng Y, Zhao Y, Di Y, He L, Liao S, Li D, Liu X. In vitro selection of DNA aptamers for the development of chemiluminescence aptasensor for neuron-specific enolase (NSE) detection. RSC Adv 2019; 9:15513-15520. [PMID: 35514829 PMCID: PMC9064317 DOI: 10.1039/c9ra00785g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/09/2019] [Indexed: 12/02/2022] Open
Abstract
Neuron-specific enolase (NSE) is one of the most commonly used serum tumor biomarker in clinical practice for small cell lung cancer screening, early diagnosis, evaluation of therapeutic efficacy and prognosis. In this study, we obtained DNA aptamers with great affinity and selectivity to NSE via subtractive SELEX approach. After 10 rounds, three candidate aptamers were successfully selected and identified. Their affinities were measured by surface plasmon resonance. Apt-5 aptamer with high binding affinity and good specificity were obtained, which had the dissociation constant (K D) values of 12.26 nM. In addition, electrophoretic mobility shift assay (EMSA) experiment also further indicated that the Apt-5 had a highly specific affinity to NSE without binding to HSA. The circular dichroism (CD) analysis revealed that the three aptamers formed stable B-form, stem-loop conformations. The selected aptamers were used to construct a chemiluminescence (CL) aptasensor biosensing platform to detect NSE from actual serum samples. Experimental results confirmed that the CL immunosensing platform had good sensitivity with detection limits of 1-100 ng mL-1. The results demonstrated that our obtained the Apt-5 aptsensor was highly specific in the detection of NSE in serum samples. The detection limit was 0.1 ng mL-1, which was lower than the 0.25 ng mL-1 limit of the ELISA used at the hospital. Moreover, the aptasensor can contribute to better detection of small cell lung cancer (SCLC).
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Affiliation(s)
- Yue Zheng
- The First Hospital of Qinhuangdao Affiliated to Hebei Medical University Qinhuangdao 066000 China +86-0335-590-8121
| | - Yunwang Zhao
- The First Hospital of Qinhuangdao Affiliated to Hebei Medical University Qinhuangdao 066000 China +86-0335-590-8121
| | - Ya Di
- The First Hospital of Qinhuangdao Affiliated to Hebei Medical University Qinhuangdao 066000 China +86-0335-590-8121
| | - Lei He
- College of Environment & Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Shiqi Liao
- College of Life Sciences, Lanzhou University Lanzhou 730000 China
| | - Dongdong Li
- College of Life Sciences, Lanzhou University Lanzhou 730000 China
| | - Xiaofei Liu
- Key Laboratory of Polymer Material of Gansu Province, Institute of Polymer, Northwest Normal University Lanzhou 730070 China
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10
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Liu G, Yu J, Li C, Zhou X, Nie L, Wei Y, Wang W, Zhang Y, Nusilaiti N, Hua P, Wang X, Wei W, Li X. Application of protein chip combined with SELDI-TOF-MS detection to investigate serum protein expression in patients with silicosis fibrosis. Exp Ther Med 2019; 17:2172-2184. [PMID: 30783481 PMCID: PMC6364189 DOI: 10.3892/etm.2019.7166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 08/14/2018] [Indexed: 02/03/2023] Open
Abstract
The present study aimed to observe the identification of biomarkers of silicosis based on the differentially expressed serum proteins between normal healthy individuals and patients with silicosis fibrosis. A total number of 20 patients with clinically diagnosed silicosis were screened, which were designated as the foundation treatment group. In addition, 20 age-matched healthy patients attending a check-up at the physical examination department were selected. Serum samples were obtained and a combined protein chip with surface-enhanced laser desorption ionization flight mass spectrometry was applied to perform serum analysis. Data preprocessing, screening differences in peak, hierarchical cluster analysis, Principal Component Analysis, construction of a decision tree model, and prediction based on the differences between peaks corresponding to proteins were performed to analyze the data. The results revealed differences in the proteins in serum between the normal group and the group prior to foundation treatment prediction. The corresponding names of the protein peak, predicted protein, and gene name were as follows: M1948_00, complement c3 frag, C3; M2017_02, amyloid-βa4 protein, APP; and M2879_56, hepcidin, HAMP. Differentially expressed serum proteins in the normal group and the basis treatment group were predicted, including M2017_02, amyloid-βa4 protein, APP; M2879_56, hepcidin, HAMP; and M3224_97, fibrinogen-α chain frags, FGA. The differentially expressed serum proteins in the group prior to basis treatment and the group following basis treatment were predicted, including M2001_69, amyloid-βa4 protein, APP; M2017_02, amyloid-βa4 protein, APP, M4144_81, plasma protease c1 inhibitor frag, and SERPING1. In conclusion, there were differences in the proteins in serum between the patients with silicosis fibrosis and healthy individuals.
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Affiliation(s)
- Guitao Liu
- Department of Occupational Disease Prevention and Control, The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China.,Department of Respiratory Diseases, The Fifth Affiliated Clinical Medical College of Xinjiang Medical University, Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Junfeng Yu
- Dermatological Department, The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
| | - Cuidong Li
- Department of Respiratory Diseases, The Fifth Affiliated Clinical Medical College of Xinjiang Medical University, Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Xiaoyun Zhou
- Department of Respiratory Diseases, The Fifth Affiliated Clinical Medical College of Xinjiang Medical University, Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Liping Nie
- Department of Respiratory Diseases, The Fifth Affiliated Clinical Medical College of Xinjiang Medical University, Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Yanhua Wei
- Department of Respiratory Diseases, The Fifth Affiliated Clinical Medical College of Xinjiang Medical University, Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Wenyu Wang
- Department of Occupational Disease Prevention and Control, The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
| | - Ying Zhang
- Department of Occupational Disease Prevention and Control, The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
| | - Nuziguli Nusilaiti
- Department of Occupational Disease Prevention and Control, The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
| | - Ping Hua
- Department of Occupational Disease Prevention and Control, The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
| | - Xiaohua Wang
- Department of Respiratory Diseases, The Fifth Affiliated Clinical Medical College of Xinjiang Medical University, Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Wenlong Wei
- Department of Respiratory Diseases, The Fifth Affiliated Clinical Medical College of Xinjiang Medical University, Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Xinyan Li
- Endocrinology Department, The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
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11
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Nakládalová M, Štěpánek L, Kolek V, Žurková M, Tichý T. A case of accelerated silicosis. Occup Med (Lond) 2018; 68:482-484. [DOI: 10.1093/occmed/kqy106] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M Nakládalová
- Department of Occupational Medicine, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czech Republic
| | - L Štěpánek
- Department of Occupational Medicine, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czech Republic
| | - V Kolek
- Department of Respiratory Medicine, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czech Republic
| | - M Žurková
- Department of Respiratory Medicine, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czech Republic
| | - T Tichý
- Department of Clinical and Molecular Pathology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czech Republic
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12
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The CD14 (-159 C/T) SNP is associated with sCD14 levels and allergic asthma, but not with CD14 expression on monocytes. Sci Rep 2018. [PMID: 29515128 PMCID: PMC5841440 DOI: 10.1038/s41598-018-20483-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
LPS-ligation to CD14/TLR-4 on monocytes/macrophages triggers the production of IL-12-family cytokines. IL12/18 promote TH1-differentiation, counteracting the TH2-driven asthma. Therefore, CD14 modulation could alter the TH2-differentiation and should be taken into account when studying asthma. To analyse the alteration in CD14 levels and its association with CD14 (−159 C/T) SNP (rs2569190) in Caucasian adults with stable allergic asthma, we performed a cross-sectional study (277 healthy subjects vs. 277 patients) where clinical parameters, CD14 values and the CD14 (−159 C/T) SNP were studied. Apart from typical biomarkers, we found an increment of neuron-specific enolase (NSE) in allergic asthma, probably linked to monocyte activity. Indeed, we evidenced increased monocyte numbers, but lower CD14 expression and normalised sCD14 values in patients. Moreover, we noticed an association of the T allele (P = 0.0162) and TT genotype (P = 0.0196) of the CD14 SNP with a decreased risk of allergic asthma and augmented sCD14 levels. In conclusion, monocyte CD14 expression and normalized sCD14 values were reduced in stable state asthmatics, and this could be related to the presence of an expanded CD14low monocyte subset. This study also demonstrates that the CD14 (−159 C/T) polymorphism is a risk factor for moderate-severe allergic asthma in adult Caucasians.
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13
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RNA-Seq revealed ATF3-regulated inflammation induced by silica. Toxicology 2017; 393:34-41. [PMID: 29102675 DOI: 10.1016/j.tox.2017.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 10/31/2017] [Accepted: 11/01/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Millions of workers are exposed to dust containing silica. Chronic and over-exposure to silica will lead to silicosis, which is an irreversible and sometimes fatal lung disease. The disordered physiological processes of silicosis consist of accumulation of silica particles in the alveoli of the lung. Then, the ingestion of the silica particles by macrophages was followed by an inflammatory response. Up till now, the chest radiographs remain the key tool in diagnosing and assessing the extent of silicosis. However, concerns exist regarding the sensitivity and specificity of the technique. Therefore, there is still a need to develop a biomarker for silicosis for early detection of silicosis. METHOD In this study, RNA-Seq was applied to detect the gene expression changes when silica was exposed to macrophages at different time intervals. RNA-Seq provides a broader dynamic range, increased specificity and sensitivity, and easier detection of rare and low-abundance transcripts. Bioinformatics tools such as the Database for Annotation, Visualization and Integrated Discovery (DAVID) and Gene Functional Classification Tool and Search Tool for the Retrieval of Interacting Genes (STRING) were applied for data analysis. Quantitative PCR was used to validate the results. RESULTS Our results showed that regulation of transcription factors was the dominant activated pathway in early exposure of silica to macrophages, followed by inflammatory responses which were the main mechanisms in silicosis. One of the findings was the upregulation of activating transcription factor 3 (ATF3) during silica exposure. When ATF3 expression was inhibited by siRNA, the production of cytokines IL-1β, IL-6 and TNF was further increased. CONCLUSION This indicated that ATF3 may be a potential early diagnostic biomarker for silicosis and ATF3 acts as a repressor in inflammatory responses induced by silica.
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Li K, Xiu CL, Gao LM, Liang HG, Xu SF, Shi M, Li J, Liu ZW. Screening of specific nucleic acid aptamers binding tumor markers in the serum of the lung cancer patients and identification of their activities. Tumour Biol 2017; 39:1010428317717123. [PMID: 28718373 DOI: 10.1177/1010428317717123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Lung cancer is by far the leading cause of cancer death in the world. Despite the improvements in diagnostic methods, the status of early detection was not achieved. So, a new diagnostic method is needed. The aim of this study is to obtain the highly specific nucleic acid aptamers with strong affinity to tumor markers in the serum of the lung cancer patients for targeting the serum. Aptamers specifically binding to tumor markers in the serum of the lung cancer patients were screened from the random single-stranded DNA library with agarose beads as supports and the serum as a target by target-substituting subtractive SELEX technique and real-time quantitative polymerase chain reaction technique. Subsequently, the secondary single-stranded DNA library obtained by 10 rounds of screening was amplified to double-stranded DNA, followed by high-throughput genome sequence analysis to screen aptamers with specific affinity to tumor markers in the serum of the lung cancer patients. Finally, six aptamers obtained by 10 rounds of screening were identified with high specific affinity to tumor markers in the serum of the lung cancer patients. Compared with other five aptamers, the aptamer 43 was identified both with the highest specificity to bind target molecule and without any obvious affinity to non-specific proteins. The screened aptamers have relatively high specificity to combine tumor markers in the serum of the lung cancer patients, which provides breakthrough points for early diagnosis and treatment of lung cancer.
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Affiliation(s)
- Kun Li
- 1 College of Environment & Chemical Engineering, Yanshan University, Qinhuangdao, P.R. China
| | - Chen-Lin Xiu
- 1 College of Environment & Chemical Engineering, Yanshan University, Qinhuangdao, P.R. China
| | - Li-Ming Gao
- 2 The First Hospital of Qinhuangdao, Qinhuangdao, China
| | | | - Shu-Feng Xu
- 2 The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Ming Shi
- 1 College of Environment & Chemical Engineering, Yanshan University, Qinhuangdao, P.R. China
| | - Jian Li
- 1 College of Environment & Chemical Engineering, Yanshan University, Qinhuangdao, P.R. China
| | - Zhi-Wei Liu
- 1 College of Environment & Chemical Engineering, Yanshan University, Qinhuangdao, P.R. China
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Ravibabu K, Barman T, Rajmohan HR. Serum neuron-specific enolase, biogenic amino-acids and neurobehavioral function in lead-exposed workers from lead-acid battery manufacturing process. THE INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE 2015; 6:50-7. [PMID: 25588226 PMCID: PMC6977058 DOI: 10.15171/ijoem.2015.436] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 06/23/2014] [Indexed: 11/22/2022]
Abstract
Background: The interaction between serum neuron-specific enolase (NSE), biogenic amino-acids and neurobehavioral function with blood lead levels in workers exposed to lead form lead-acid battery manufacturing process was not studied. Objective: To evaluate serum NSE and biogenic amino-acids (dopamine and serotonin) levels, and neurobehavioral performance among workers exposed to lead from lead-acid storage battery plant, and its relation with blood lead levels (BLLs). Methods: In a cross-sectional study, we performed biochemical and neurobehavioral function tests on 146 workers exposed to lead from lead-acid battery manufacturing process. BLLs were assessed by an atomic absorption spectrophotometer. Serum NSE, dopamine and serotonin were measured by ELISA. Neurobehavioral functions were assessed by CDC-recommended tests—simple reaction time (SRT), symbol digit substitution test (SDST), and serial digit learning test (SDLT). Results: There was a significant correlation (r 0.199, p<0.05) between SDST and BLL. SDLT and SRT had also a significant positive correlation (r 0.238, p<0.01). NSE had a negative correlation (r –0.194, p<0.05) with serotonin level. Multiple linear regression analysis revealed that both SRT and SDST had positive significant associations with BLL. SRT also had a positive significant association with age. Conclusion: Serum NSE cannot be used as a marker for BLL. The only domain of neurobehavioral function tests that is affected by increased BLL in workers of lead-acid battery manufacturing process is that of the "attention and perception" (SDST).
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Affiliation(s)
- K Ravibabu
- Regional Occupational Health Centre (Southern), Nirmal Bhavan, ICMR Complex, Kannamangala (Post), Devanahalli, Bangalore-562110, Karnataka, India.
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HUTYROVÁ B, SMOLKOVÁ P, NAKLÁDALOVÁ M, TICHÝ T, KOLEK V. Case of accelerated silicosis in a sandblaster. INDUSTRIAL HEALTH 2014; 53:178-183. [PMID: 25567156 PMCID: PMC4380606 DOI: 10.2486/indhealth.2013-0032] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 12/12/2014] [Indexed: 06/04/2023]
Abstract
Sandblasting is traditionally known as a high-risk profession for potential development of lung silicosis. Reported is a case of a sandblaster with confirmed accelerated silicosis, a condition rather rarely diagnosed in the Czech Republic. Initially, the patient presented with progressive dry cough and exertional dyspnoea. In the early diagnostic process, a possible occupational aetiology was considered given his occupational history and known high-risk exposure to respirable silica particles confirmed by industrial hygiene assessment at the patient's workplace. The condition was confirmed by clinical, histological and autopsy findings. The patient died during lung transplantation, less than five years from diagnosis.
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Affiliation(s)
- Beáta HUTYROVÁ
- Department of Respiratory Medicine, Faculty of Medicine and
Dentistry, Palacký University Olomouc, Czech Republic
| | - Petra SMOLKOVÁ
- Department of Occupational Medicine, Faculty of Medicine and
Dentistry, Palacký University Olomouc, Czech Republic
| | - Marie NAKLÁDALOVÁ
- Department of Occupational Medicine, Faculty of Medicine and
Dentistry, Palacký University Olomouc, Czech Republic
| | - Tomáš TICHÝ
- Department of Clinical and Molecular Pathology, Faculty of
Medicine and Dentistry, Palacký University Olomouc, Czech Republic
| | - Vítězslav KOLEK
- Department of Respiratory Medicine, Faculty of Medicine and
Dentistry, Palacký University Olomouc, Czech Republic
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