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Yuan J, Wang T, Wang L, Li P, Shen H, Mo Y, Zhang Q, Ni C. Transcriptome-wide association study identifies PSMB9 as a susceptibility gene for coal workers' pneumoconiosis. ENVIRONMENTAL TOXICOLOGY 2022; 37:2103-2114. [PMID: 35506645 DOI: 10.1002/tox.23554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 04/13/2022] [Accepted: 04/23/2022] [Indexed: 06/14/2023]
Abstract
Coal workers' pneumoconiosis (CWP) is a type of typical occupational lung disease caused by prolonged inhalation of coal mine dust. The individuals' different genetic background may underlie their different susceptibility to develop pneumoconiosis, even under the same exposure level. This study aimed to identify susceptibility genes associated with CWP. Based on our previous genome-wide association study (GWAS, 202 CWP cases vs. 198 controls) and gene expression data obtained by analyzing human lungs and whole blood from the Genotype-Tissue Expression (GTEx) Portal, a transcriptome-wide association study (TWAS) was applied to identify CWP risk-related genes. Luciferase report gene assay, qRT-PCR, Western blot, immunofluorescence assay, and TUNEL assay were conducted to explore the potential role of the candidate gene in CWP. Proteasome 20S subunit beta 9 (PSMB9) was identified as a strong risk-related gene of CWP in both lungs and whole blood (Lungs: PTWAS = 4.22 × 10-4 ; Whole blood: PTWAS = 2.11 × 10-4 ). Single nucleotide polymorphisms (SNPs) rs2071480 and rs1351383, which locate in the promoter region and the first intron of the PSMB9 gene, were in high linkage disequilibrium (LD, r2 = 0.98) with the best GWAS SNP rs4713600 (G>T, OR = 0.55, 95% CI: 0.42-0.74, P = 6.86 × 10-5 ). Both rs2071480 and rs1351383 significantly enhanced the transcriptional activity of PSMB9. Functional experiments revealed that silica exposure remarkably reduced the PSMB9 expression and caused cell apoptosis, while overexpression of PSMB9 markedly abolished silica-induced cell apoptosis. We here identified PSMB9 as a novel susceptibility gene for CWP and provided important insights into the further exploration of the CWP pathogenesis.
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Affiliation(s)
- Jiali Yuan
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Ting Wang
- Department of Pathology, The Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Lijuan Wang
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Ping Li
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hongbing Shen
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yiqun Mo
- Department of Epidemiology and Population Health, School of Public Health and Information Sciences, University of Louisville, Louisville, Kentucky, USA
| | - Qunwei Zhang
- Department of Epidemiology and Population Health, School of Public Health and Information Sciences, University of Louisville, Louisville, Kentucky, USA
| | - Chunhui Ni
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
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Yuan B, Yuan W, Wen X, Li C, Gao L, Li B, Wang D, Cui L, Li Y. Association of single nucleotide polymorphisms in the CYBA gene with coal workers' pneumoconiosis in the Han Chinese population. Inhal Toxicol 2019; 30:492-497. [PMID: 30654669 DOI: 10.1080/08958378.2018.1558315] [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: 10/27/2022]
Abstract
Coal workers' pneumoconiosis (CWP) is caused by long-term exposure to inhaled coal dust; it is likely influenced by the interaction between environmental factors and multiple susceptibility genes, such as the CYBA (cytochrome b-245α polypeptide) gene that has recently been identified to be involved in the genetic susceptibility for several pulmonary diseases. The aim of this case-control study was to explore the association between CYBA gene polymorphisms and the development of CWP in coal miners belonging to the Han ethnic group in China. Single nucleotide polymorphisms (SNPs) rs7195830, rs13306296, rs4673, rs9932581, and rs16966671 of the CYBA gene were analyzed in CWP patients (n = 652) and dust-exposed control subjects (n = 648) using the matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) on the Sequenom MassARRAY® platform (Sequenom, San Diego, CA, USA). Results from the present study showed a strong allele association between CWP patients and the CYBA SNP rs7195830 polymorphism (p < .001, OR = 1.550). Using the additive and the dominant model, the CYBA SNP rs7195830 polymorphism also showed significant associations with CWP patients (p < .001, OR = 1.621; p = .003, OR = 1.711, respectively). No statistically significant difference was demonstrated in either the allele or genotype frequencies of the other four examined SNPs (rs13306296, rs4673, rs9932581, and rs16966671) between the CWP group and dust-exposed control group (all p > .05). The present study is the first to have demonstrated an association between CYBA (rs7195830) polymorphism and the risk of developing CWP in subjects belong to the Han ethnic group in China and provides further clues for research into the pathogenesis of CWP.
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Affiliation(s)
- Baojun Yuan
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Wei Yuan
- b Department of Rheumatology and Clinical Immunology , Kai Luan General Hospital , Tangsha , Hebei , China
| | - Xiaoting Wen
- c Department of Rheumatology and Clinical Immunology , Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Chao Li
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Lichang Gao
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Baolin Li
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Dongmei Wang
- a Department of Clinical Laboratory , Kai Luan General Hospital , Tangshan , Hebei , China
| | - Liufu Cui
- b Department of Rheumatology and Clinical Immunology , Kai Luan General Hospital , Tangsha , Hebei , China
| | - Yongzhe Li
- c Department of Rheumatology and Clinical Immunology , Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
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Doganay S, Gocmen H, Yikilmaz A, Coskun A. Silicosis due to Denim Sandblasting in Young People: MDCT Findings. Eurasian J Med 2015; 42:21-3. [PMID: 25610113 DOI: 10.5152/eajm.2010.07] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Accepted: 04/08/2010] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Occupational lung disease due to silica dust is one of the most common work-related injuries. In denim sandblasting, workers are exposed to silica that may cause immediate mortality, especially in young people. The aim of this study was to assess the multidetector computed tomography (MDCT) findings of silicosis in denim sandblasters and to better define the role of MDCT in the early detection of silicosis. MATERIALS AND METHODS The study included 12 consecutive male patients who were admitted to a pulmonary outpatient clinic between April 2009 and December 2009. All patients had been working as sandblasters for at least one year. All patients underwent chest CT examinations for suspected silicosis. Two radiologists independently assessed the images for the presence and distribution of airspace consolidation, ground-glass opacity, nodules, interlobular septal thickening, parenchymal bands, fibrosis, masses, traction bronchiectasis, honeycombing, lobular low-attenuation areas, emphysema, pleural effusion or thickening, and mediastinal or hilar adenopathy. RESULTS MDCT detected parenchymal abnormalities in the lungs in eight (67%) of the twelve patients. The most common MDCT finding was ground glass opacity (58%). Other common findings were parencyhmal nodules and interlobular septal thickening, predominantly in the upper zones. Nodules were detected in six (50%) of the twelve patients. In four cases (67%), the nodules were numerous (>10), were predominantly smaller than 10 mm, and were centrilobular in distribution. In five (42%) of the 12 patients, interlobular septal thickening was detected. Only one (8%) patient presented with airspace consolidation; this was bilateral in the upper zones and associated with air bronchograms. In one (8%) patient there were several traction bronchiectases in the upper zones. None of the patients presented with pleural effusion, thickening, or honeycombing. Enlarged mediastinal nodes were identified in half of the patients, predominantly in the precarinal, paratracheal, and prevascular regions. No egg-shell calcification was detected. One (8%) patient presented with punctate calcification in the hilar region. CONCLUSIONS Early detection of silicosis is important because it may cause immediate mortality, especially in young people. Enlarged mediastinal lymph nodes, centrilobular nodules, interlobular septal thickening, and patchy ground glass opacity may be early MDCT findings of silicosis. Thus, MDCT plays an important role in the early detection of silicosis in denim sandblasters.
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Affiliation(s)
- Selim Doganay
- Department of Radiology, Medical Faculty, Erciyes University, Kayseri, Turkey
| | - Hayrettin Gocmen
- Department of Pulmonology, Inegol Government Hospital, Inegöl, Bursa, Turkey
| | - Ali Yikilmaz
- Department of Radiology, Medical Faculty, Erciyes University, Kayseri, Turkey
| | - Abdulhakim Coskun
- Department of Radiology, Medical Faculty, Erciyes University, Kayseri, Turkey
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Qian H, Song Z, Wang M, Jia X, Li A, Yang Y, Shen L, Wang S, Ni C, Zhou J. Association of transforming growth factor-β1 gene variants with risk of coal workers' pneumoconiosis. J Biomed Res 2013; 24:270-6. [PMID: 23554640 PMCID: PMC3596592 DOI: 10.1016/s1674-8301(10)60038-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2010] [Indexed: 11/20/2022] Open
Abstract
Objective The aim of this case-control study was to explore whether five tagging single nucleotide polymorphisms (tSNPs) within the transforming growthfactor-β1 (TGF-β1) gene were involved in manifestation of inflammatory and fibrotic processes associated with coal workers' pneumoconiosis (CWP). Methods The study included 508 CWP patients and 526 controls who were underground coal miners from Xuzhou Mining Business Group. Five tSNPs were selected from the HapMap and detected by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Results The single SNP analysis showed that the genotype frequencies of SNP2 (rs1800470, +869T/C, extron 1) and SNP5 (rs11466345, intron 5) in CWP cases were significantly different from those in controls. Multivariate logistic regression analysis revealed that SNP2 (rs1800470) CC genotype was associated with decreased risk of CWP (OR = 0.50, 95% CI = 0.32-0.78), which was evident among subgroups of those never smoke (OR = 0.40, 95%CI = 0.24-0.66), cases with stage II (OR = 0.41, 95%CI = 0.22-0.76) and exposure period (< 28 y: OR = 0.54, 95%CI = 0.31-0.95; ≥28 y: OR = 0.52, 95%CI = 0.32-0.96). However, the SNP5 (rs11466345) GG genotype was associated with an increased risk of CWP (OR = 2.5, 95%CI = 1.36-4.57), and further stratification analysis showed that the risk of CWP was increased in both smoking and nonsmoking groups, shorter and longer exposure groups, while the risk of CWP was only increased in patients with stage I and II. Conclusion This study suggests that TGF-β1 polymorphisms may contribute to susceptibility of CWP.
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Affiliation(s)
- Haiyang Qian
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Zhifang Song
- Department of Occupational Health, General Hospital of Xuzhou Mining Business Group Co., Ltd. Xuzhou 221006, Jiangsu Province, China
| | - Meilin Wang
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Xiaomin Jia
- Department of Occupational Health, General Hospital of Xuzhou Mining Business Group Co., Ltd. Xuzhou 221006, Jiangsu Province, China
| | - Aiping Li
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Ye Yang
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Lianlian Shen
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Shasha Wang
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Chunhui Ni
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
- *Corresponding authors E-mail address: Jianwei Zhou: ; Chunhui Ni:
| | - Jianwei Zhou
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
- *Corresponding authors E-mail address: Jianwei Zhou: ; Chunhui Ni:
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Arens AM, Barr B, Puchalski SM, Poppenga R, Kulin RM, Anderson J, Stover SM. Osteoporosis associated with pulmonary silicosis in an equine bone fragility syndrome. Vet Pathol 2010; 48:593-615. [PMID: 21097716 DOI: 10.1177/0300985810385151] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
California horses incur a bone fragility syndrome manifested by pathologic fractures. This study investigated gross, radiographic, and histologic features of the disorder as well as relationships with silicosis and levels of heavy metals and trace minerals through a postmortem study of 9 affected and 3 unaffected horses. Bones and soft tissues were evaluated grossly and histologically. Bones, lymph nodes, and lung tissue were evaluated radiographically. Tissues were evaluated for silicon levels, intracytoplasmic crystals, heavy metals, and trace minerals. All 9 affected horses had osteoporosis and clinical or subclinical pulmonary disease due to silicosis (8/9) or pneumoconiosis (1/9). All affected horses had radiographic findings consistent with osteopenia and histologic evidence of osteoporosis characterized by osteopenia, numerous resorption cavities, cement lines, and a mosaic lamellar pattern indicative of multiple remodeling events. Silicosis was characterized by widespread pulmonary granuloma formation with fibrosis; variable tracheobronchiolar and mediastinal granulomatous lymphadenitis; intracellular crystals within lung and lymph node macrophages; and pronounced lymph node fibrosis, focal necrosis, and dystrophic calcification. Crystals in lung (6/9) and lymph node (8/9) tissues were identified as cytotoxic silica dioxide polymorphs. Lung and liver tissue from affected horses had elevated levels of elemental silicon. Osteoporosis was highly correlated (r = 0.8, P < .01) with silicosis. No abnormalities in heavy metal or trace minerals were detected. This evaluation indicated that horses with bone fragility disorder have systemic osteoporosis associated with fibrosing pulmonary silicosis. The etiopathogenesis of the bone fragility syndrome is unknown; however, this study provides circumstantial evidence for a silicate associated osteoporosis.
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Affiliation(s)
- A M Arens
- School of VeterinaryMedicine, University of California, Davis, CA, USA
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Polish bibliography of occupational medicine, 2009. Int J Occup Med Environ Health 2010. [DOI: 10.2478/v10001-010-0033-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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