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Marković A, Grujičić D, Živković Radojević M, Milošević-Djordjević O. Measurement of chromosomal instability and level of DNA damage in peripheral blood mononuclear cells of endometrial cancer patients. Mutagenesis 2024; 39:172-180. [PMID: 38267363 DOI: 10.1093/mutage/geae003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/23/2024] [Indexed: 01/26/2024] Open
Abstract
Endometrial cancer is one of the most common invasive gynecologic malignancies in developed countries. The aim of this study was to evaluate chromosomal instability and level of DNA damage in peripheral blood mononuclear cells (PBMCs) of newly diagnosed endometrial cancer patients in relation to health status (diagnosis), age, histological grade of cancer, residence, smoking, number of pregnancies, miscarriages, and abortions. The analyzed sample consisted of 60 individuals, 30 endometrial cancer patients with an average age of 64.37 ± 7.08, and 30 healthy control women with an average age of 60.23 ± 11.55. Chromosomal instability was evaluated by the cytokinesis-block micronucleus (CBMN) assay, and the level of DNA damage by the single-cell gel electrophoresis (comet) assay in PBMCs. The average frequencies of micronuclei (MNi), nucleoplasmic bridges (NPBs) as well as nuclear buds (NBUDs) were significantly higher in cancer patients compared to controls (P < .0005). There was no difference in the nuclear division index (NDI) among the analyzed samples. The comet assay showed that the patients had a significantly increased genetic damage index (GDI) compared with controls (P < .0005). Using linear regression analysis, we found that health status (diagnosis) had the strongest influence on the MN frequency as well as GDI (P < .0005). Our results indicated that there is a high level of genetic damage in both the level of DNA and the level of chromosomes in the PBMCs of newly diagnosed patients with endometrial cancer, where the frequency and level of damage were significantly affected by health status, grade of cancer, residence, number of pregnancies, miscarriages, and abortions.
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Affiliation(s)
- Aleksandra Marković
- Faculty of Science, Department of Biology and Ecology, University of Kragujevac, 34 000 Kragujevac, Serbia
| | - Darko Grujičić
- Faculty of Science, Department of Biology and Ecology, University of Kragujevac, 34 000 Kragujevac, Serbia
| | - Marija Živković Radojević
- Radiotherapy Department, University Clinical Centre, Centre for Radiation Oncology, 34 000 Kragujevac, Serbia
- Faculty of Medical Sciences, Department of Clinical Oncology, University of Kragujevac, 34 000 Kragujevac, Serbia
| | - Olivera Milošević-Djordjević
- Faculty of Science, Department of Biology and Ecology, University of Kragujevac, 34 000 Kragujevac, Serbia
- Faculty of Medical Sciences, Department of Genetics, University of Kragujevac, 34 000 Kragujevac, Serbia
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Wang K, Meng Y, Wang T, Tu Y, Gong S, Zhang G, Au W, Xia Z. Global and gene-specific promoter methylation, and micronuclei induction in lead-exposed workers: A cross-sectional study. Environ Mol Mutagen 2021; 62:428-434. [PMID: 34269489 DOI: 10.1002/em.22451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 06/11/2021] [Accepted: 07/14/2021] [Indexed: 02/05/2023]
Abstract
Perturbation of epigenetic regulation is a well-established mechanism for cancer but its role for lead (Pb)-associated toxicity has not been adequately investigated. We aimed to investigate whether occupational Pb exposure is associated with micronuclei (MN) frequency and to further explored the mediating roles of epigenetic gene regulation. All the Pb-exposed workers recruited from a Chinese acid battery factory, blood lead levels (BLLs) and MN frequency in lymphocytes were measured. In addition, methylation levels of seven genes (Line-1, RASSF1A, RUNX3, p16, CYP26C1, hMLH1, p15) were examined among 230 workers. Robust Poisson regression model was used to investigate the association between BLLs and MN frequency. Mediation analysis was used to explore the mediating role of specific DNA methylation. Among total 677 participants, 71% were male, median BLLs was 229.1 μg/L (P25 = 155.5, P75 = 319.3; ranged from 8.9 to 647.7 μg/L), mean MN frequency was 2.5‰ (SD = 1.8‰; ranged from 0 to 9‰). Results from base model, adjusted for age, sex, and body mass index, showed that MN frequency would increase 1.38 (95%confidential interval: 1.34, 1.43) per 100 μg/L increment in BLLs. Using categorized exposure variable analyses, a BLLs dose-response increase in MN frequency was observed: 2.74 (2.13, 3.51), 3.43 (2.73, 4.32), 4.41 (3.89, 5.01) to 6.86 (6.02, 7.81). Mediation analysis indicated that Line-1 methylation significantly mediated 3.6% of the association of BLLs with MN frequency. Occupational Pb exposure induces MN frequency in a dose-response relationship. Part of this association was mediated by Line-1 promotor methylation.
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Affiliation(s)
- Kan Wang
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Yu Meng
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Tuanwei Wang
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Yuting Tu
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Shiyang Gong
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Guanghui Zhang
- School of Public Health, Xinxiang Medical University, Henan, China
| | - William Au
- University of Medicine Pharmacy, Science and Technology, Targu Mures, Romania, and Shantou University Medical College, Shantou, China
| | - Zhaolin Xia
- School of Public Health, and Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
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3
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Nikolouzakis TK, Vakonaki E, Stivaktakis PD, Alegakis A, Berdiaki A, Razos N, Souglakos J, Tsatsakis A, Tsiaoussis J. Novel Prognostic Biomarkers in Metastatic and Locally Advanced Colorectal Cancer: Micronuclei Frequency and Telomerase Activity in Peripheral Blood Lymphocytes. Front Oncol 2021; 11:683605. [PMID: 34262868 PMCID: PMC8274420 DOI: 10.3389/fonc.2021.683605] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 06/14/2021] [Indexed: 01/05/2023] Open
Abstract
PURPOSE Due to the current practice on colorectal cancer (CRC) management, chemoresistance is most often recognized at the end of the treatment. Therefore, effective and easy-to-use prognostic biomarkers are needed. EXPERIMENTAL DESIGN We evaluated the prognostic significance of two novel CRC biomarkers: a) micronuclei frequency (MNf) in 55 metastatic CRC (mCRC) and 21 locally advanced rectal cancer (laRC) patients using cytokinesis block micronucleus assay (CBMN assay) and b) telomerase activity (TA) in 23 mCRC and five laRC patients using TRAP-ELISA. Both biomarkers were evaluated in peripheral blood lymphocytes (PBLs) before, at the middle, and at the end of the therapy (approximately 0, 3, and 6 months) for mCRC patients before, at the end of the therapy, and after surgery for laRC patients. RESULTS Overall, MNf demonstrated significant prognostic value since a decrease of MNf less than 29% between middle and initial MNf measurements can discriminate between progressive and stable/responsive disease with sensitivity of 36% and specificity of 87.0% while being able to identify responsive disease with sensitivity of 72.7% and specificity of 59.3%. On the other hand, TA presented a significant trend of increase (p = 0.07) in patients with progressive disease at the middle measurement. CONCLUSIONS The findings of this study suggest that the MN frequency may serve as a promising prognostic biomarker for the monitoring of the treatment response of patients with CRC, while TA should be evaluated in a larger group of patients to further validate its significance.
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Affiliation(s)
| | - Elena Vakonaki
- Laboratory of Toxicology, Medical School, University of Crete, Heraklion, Greece
| | | | - Athanasios Alegakis
- Laboratory of Toxicology, Medical School, University of Crete, Heraklion, Greece
| | - Aikaterini Berdiaki
- Laboratory of Histology-Embryology, Medical School, The University of Crete, Heraklion, Greece
| | - Nikolaos Razos
- Department of Anatomy, Medical School, University of Crete, Heraklion, Greece
| | - John Souglakos
- Department of Medical Oncology, University General Hospital of Heraklion, and Laboratory of Translational Oncology, Medical School, University of Crete, Heraklion, Greece
| | - Aristidis Tsatsakis
- Department of Forensic Sciences and Toxicology, Medical School, University of Crete, Heraklion, Greece
| | - John Tsiaoussis
- Department of Anatomy, Medical School, University of Crete, Heraklion, Greece
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Kokila S, Prasad H, Rajmohan M, Kumar Srichinthu K, Mahalakshmi L, Shanmuganathan S, Prema P. Evaluation of Micronuclei and Cytomorphometric Changes in Patients with Different Tobacco Related Habits Using Exfoliated Buccal Cells. Asian Pac J Cancer Prev 2021; 22:1851-1855. [PMID: 34181342 PMCID: PMC8418841 DOI: 10.31557/apjcp.2021.22.6.1851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Tobacco is one of the main reasons behind the occurrence of oral cancer. Oral cancer, even though being the tenth most common cancer in the world, gets diagnosed at an advanced stage and ends up with poor prognosis. So early diagnosis is the need of the hour. Our study aimed to evaluate the genotoxic changes in patients with different tobacco habits using buccal exfoliated cells. METHODS Buccal smears were taken from smokers (30), smokeless tobacco users (30), combined tobacco users (30) and controls (30) with clinically normal oral mucosa. All the smears were stained with Papanicolaou stain and Feulgen stain and viewed under light microscope for the evaluation of mean number of micronuclei, mean micronuclei per cell, frequency of cells showing micronuclei, nuclear area, cytoplasmic area, nuclear-cytoplasmic ratio. RESULTS Mean number of micronuclei, mean micronuclei per cell, frequency of cells showing micronuclei, and nuclear area were significantly increased in tobacco users than controls, especially in combined tobacco users. Nuclear-cytoplasmic ratio was increased and cytoplasmic area was decreased in tobacco users than controls. CONCLUSION Tobacco in any consumable form is genotoxic. Smoking and smokeless tobacco, when consumed together, synergistically causes higher genetic damage. Different tobacco habits have different deleterious effects on oral mucosa, and these effects are more pronounced when the patients have combined habits. So, detecting the genotoxic changes through exfoliative cytology can be used as a simple yet reliable marker for early detection of carcinogenesis.<br />.
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Affiliation(s)
- Sivakumar Kokila
- Department of Oral and Maxillofacial Pathology, KSR Institute of Dental Science and Research, Tiruchengode, Namakkal, India
| | - Harikrishnan Prasad
- Department of Oral and Maxillofacial Pathology, KSR Institute of Dental Science and Research, Tiruchengode, Namakkal, India
| | - Muthusamy Rajmohan
- Department of Oral and Maxillofacial Pathology, KSR Institute of Dental Science and Research, Tiruchengode, Namakkal, India
| | - Kenniyan Kumar Srichinthu
- Department of Oral and Maxillofacial Pathology, KSR Institute of Dental Science and Research, Tiruchengode, Namakkal, India
| | - Loganathan Mahalakshmi
- Department of Oral and Maxillofacial Pathology, KSR Institute of Dental Science and Research, Tiruchengode, Namakkal, India
| | - Sivanandhan Shanmuganathan
- Department of Oral and Maxillofacial Pathology, KSR Institute of Dental Science and Research, Tiruchengode, Namakkal, India
| | - Perumal Prema
- Department of Oral and Maxillofacial Pathology, KSR Institute of Dental Science and Research, Tiruchengode, Namakkal, India
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Sarker AH, Trego KS, Zhang W, Jacob P, Snijders A, Mao JH, Schick SF, Cooper PK, Hang B. Thirdhand smoke exposure causes replication stress and impaired transcription in human lung cells. Environ Mol Mutagen 2020; 61:635-646. [PMID: 32267018 PMCID: PMC7363442 DOI: 10.1002/em.22372] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/29/2020] [Accepted: 03/27/2020] [Indexed: 05/12/2023]
Abstract
Thirdhand cigarette smoke (THS) is a newly described toxin that lingers in the indoor environment long after cigarettes have been extinguished. Emerging results from both cellular and animal model studies suggest that THS is a potential human health hazard. DNA damage derived from THS exposure could have genotoxic consequences that would lead to the development of diseases. However, THS exposure-induced interference with fundamental DNA transactions such as replication and transcription, and the role of DNA repair in ameliorating such effects, remain unexplored. Here, we found that THS exposure increased the percentage of cells in S-phase, suggesting impaired S-phase progression. Key DNA damage response proteins including RPA, ATR, ATM, CHK1, and BRCA1 were activated in lung cells exposed to THS, consistent with replication stress. In addition, THS exposure caused increased 53BP1 foci, indicating DNA double-strand break induction. Consistent with these results, we observed increased micronuclei formation, a marker of genomic instability, in THS-exposed cells. Exposure to THS also caused a significant increase in phosphorylated RNA Polymerase II engaged in transcription elongation, suggesting an increase in transcription-blocking lesions. In agreement with this conclusion, ongoing RNA synthesis was very significantly reduced by THS exposure. Loss of nucleotide excision repair exacerbated the reduction in RNA synthesis, suggesting that bulky DNA adducts formed by THS are blocks to transcription. The adverse impact on both replication and transcription supports genotoxic stress as a result of THS exposure, with important implications for both cancer and other diseases.
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Affiliation(s)
- Altaf H. Sarker
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Correspondence: Dr. Altaf H. Sarker, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA, Tel: (510) 486-6113,
| | - Kelly S. Trego
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Weiguo Zhang
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Peyton Jacob
- Department of Medicine, Division of Cardiology, Clinical Pharmacology Program, University of California, San Francisco, CA 94143, USA
| | - Antoine Snijders
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jian-Hua Mao
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Suzaynn F. Schick
- Department of Medicine, Division of Occupational and Environmental Medicine, University of California, San Francisco, CA 94143, USA
| | - Priscilla K. Cooper
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Bo Hang
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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刘 佳, 胡 贵, 赵 琳, 张 永, 王 丽, 贾 光, 刘 瑞, 冯 慧, 徐 华. [Early effects of low-level long-term occupational chromate exposure on workers'health]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:307-314. [PMID: 30996374 PMCID: PMC7441203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Indexed: 11/13/2023]
Abstract
OBJECTIVE To explore the effects of low-level long-term occupational exposure to chromate on the health of workers, and the potential biomarkers of early health effects in terms of lung function, immune toxicity and genetic damage. METHODS A total of 22 chromate contact workers and 44 non-chromate contact workers from an electroplating enterprise with long-term occupational environment monitoring in line with the national standards in Inner Mongolia were investigated. The questionnaire survey was conducted to collect the basic situation, the history of smoking, drinking, diseases and so on. The portable lung function instrument, inductively coupled plasma mass spectrometry and cytokinesis-blocked micronucleus test were performed to measure the chromate contact workers'lung function, whole blood Cr (WB-Cr) and micronuclei frequency (MNF) of peripheral blood lymphocytes respectively. The cytometric bead array was used to detect the levels of IL-1β, IL-6, IL-8, IL-10, IL-12P70 and TNFα in the serum among the two groups. The effects of chromate exposure on the above-mentioned indexes involved biological exposure, lung function, immune response and genetic damage, and their correlation were analyzed with different statistical methods. RESULTS (1) the average length of service for chromate contact workers was 31 years, and their concentration of WB-Cr was 1.11-4.19 μg/L. They were divided into high and low exposure groups according to the median of 1.72 μg/L. The WB-Cr in the high exposure group (2.17 μg/L) was higher than that in the low exposure group (1.58 μg/L) as well as the reference value of the healthy population (1.74 μg/L, P<0.05); (2) the lung function test showed 10 (45.45%) chromate exposure workers had single or multiple abnormal lung function indexes, among which large airway injury index PEF, and small airway injury indexes MVV and FEF25%-75% were all negatively correlated with WB-Cr (r=-0.53, P<0.05; r=-0.52, P<0.05; r=-0.44, P<0.05); (3) IL-1β, IL-6, IL-8 and TNFα in the serum of chromate contact workers were higher than those in the control group (P<0.05), and there was a positive correlation between TNFα and WB-Cr, and among these cytokines (P<0.05); (4) the average lymphocyte MNF in chromate contact workers was 1.341%, higher than the reference value of the general population (0.436%, P<0.01). Poisson regression analysis showed MNF in thehigh exposure group was higher than that in the low exposure group, OR (95%CI) =1.323 (1.049, 1.669); (5) multiple linear regression analysis showed that the lung function index FEF25%-75% decreased with the increase of TNFα (P<0.05), no significant correlation was found between other cytokines, MNF and lung function indexes. CONCLUSION Long-term low-level occupational exposure to chromate can cause the decline of lung function, immune inflammatory reaction and genetic damage in workers, in which local or systemic inflammatory response is associated with decreased lung function. Lung function indexes PEF, FEF25%-75% and MVV, serum cytokines IL-1β, IL-6, IL-8, and TNFα, and peripheral blood lymphocyte MNF may be used as early health effects biomarkers of chromate exposure.
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Affiliation(s)
- 佳兴 刘
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 贵平 胡
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 琳 赵
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 永明 张
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 丽 王
- 内蒙古包头医学院公共卫生学院劳动卫生与环境卫生学系, 内蒙古自治区包头 014040Department of Occupational and Environmental Health, School of Public Health, Baotou Medical College, Baotou, 014040, Inner Mongolia, China
| | - 光 贾
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 瑞祥 刘
- 内蒙古北方重工业集团有限公司医院, 内蒙古自治区包头 014010Inner Mongolia North Heavy Industry Group Co., Ltd. Hospital, Baotou 014010, Inner Mongolia, China
| | - 慧敏 冯
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 华东 徐
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
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刘 佳, 胡 贵, 赵 琳, 张 永, 王 丽, 贾 光, 刘 瑞, 冯 慧, 徐 华. [Early effects of low-level long-term occupational chromate exposure on workers'health]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:307-314. [PMID: 30996374 PMCID: PMC7441203 DOI: 10.19723/j.issn.1671-167x.2019.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To explore the effects of low-level long-term occupational exposure to chromate on the health of workers, and the potential biomarkers of early health effects in terms of lung function, immune toxicity and genetic damage. METHODS A total of 22 chromate contact workers and 44 non-chromate contact workers from an electroplating enterprise with long-term occupational environment monitoring in line with the national standards in Inner Mongolia were investigated. The questionnaire survey was conducted to collect the basic situation, the history of smoking, drinking, diseases and so on. The portable lung function instrument, inductively coupled plasma mass spectrometry and cytokinesis-blocked micronucleus test were performed to measure the chromate contact workers'lung function, whole blood Cr (WB-Cr) and micronuclei frequency (MNF) of peripheral blood lymphocytes respectively. The cytometric bead array was used to detect the levels of IL-1β, IL-6, IL-8, IL-10, IL-12P70 and TNFα in the serum among the two groups. The effects of chromate exposure on the above-mentioned indexes involved biological exposure, lung function, immune response and genetic damage, and their correlation were analyzed with different statistical methods. RESULTS (1) the average length of service for chromate contact workers was 31 years, and their concentration of WB-Cr was 1.11-4.19 μg/L. They were divided into high and low exposure groups according to the median of 1.72 μg/L. The WB-Cr in the high exposure group (2.17 μg/L) was higher than that in the low exposure group (1.58 μg/L) as well as the reference value of the healthy population (1.74 μg/L, P<0.05); (2) the lung function test showed 10 (45.45%) chromate exposure workers had single or multiple abnormal lung function indexes, among which large airway injury index PEF, and small airway injury indexes MVV and FEF25%-75% were all negatively correlated with WB-Cr (r=-0.53, P<0.05; r=-0.52, P<0.05; r=-0.44, P<0.05); (3) IL-1β, IL-6, IL-8 and TNFα in the serum of chromate contact workers were higher than those in the control group (P<0.05), and there was a positive correlation between TNFα and WB-Cr, and among these cytokines (P<0.05); (4) the average lymphocyte MNF in chromate contact workers was 1.341%, higher than the reference value of the general population (0.436%, P<0.01). Poisson regression analysis showed MNF in thehigh exposure group was higher than that in the low exposure group, OR (95%CI) =1.323 (1.049, 1.669); (5) multiple linear regression analysis showed that the lung function index FEF25%-75% decreased with the increase of TNFα (P<0.05), no significant correlation was found between other cytokines, MNF and lung function indexes. CONCLUSION Long-term low-level occupational exposure to chromate can cause the decline of lung function, immune inflammatory reaction and genetic damage in workers, in which local or systemic inflammatory response is associated with decreased lung function. Lung function indexes PEF, FEF25%-75% and MVV, serum cytokines IL-1β, IL-6, IL-8, and TNFα, and peripheral blood lymphocyte MNF may be used as early health effects biomarkers of chromate exposure.
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Affiliation(s)
- 佳兴 刘
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 贵平 胡
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 琳 赵
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 永明 张
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 丽 王
- 内蒙古包头医学院公共卫生学院劳动卫生与环境卫生学系, 内蒙古自治区包头 014040Department of Occupational and Environmental Health, School of Public Health, Baotou Medical College, Baotou, 014040, Inner Mongolia, China
| | - 光 贾
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 瑞祥 刘
- 内蒙古北方重工业集团有限公司医院, 内蒙古自治区包头 014010Inner Mongolia North Heavy Industry Group Co., Ltd. Hospital, Baotou 014010, Inner Mongolia, China
| | - 慧敏 冯
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
| | - 华东 徐
- 北京大学公共卫生学院劳动卫生与环境卫生学系, 北京 100191Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, China
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8
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Nikolouzakis TK, Stivaktakis PD, Apalaki P, Kalliantasi K, Sapsakos TM, Spandidos DA, Tsatsakis A, Souglakos J, Tsiaoussis J. Effect of systemic treatment on the micronuclei frequency in the peripheral blood of patients with metastatic colorectal cancer. Oncol Lett 2019; 17:2703-2712. [PMID: 30854044 PMCID: PMC6365930 DOI: 10.3892/ol.2019.9895] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 12/12/2018] [Indexed: 12/31/2022] Open
Abstract
Colorectal cancer (CRC) is the third most diagnosed type of cancer affecting males, and the second most diagnosed type of cancer affecting females, and one of the leading causes of cancer-related mortality globally. The estimation of the micronuclei (MN) frequency in peripheral blood lymphocytes (PBLs) from patients with CRC is proposed as a prognostic/predictive easy-to-use biomarker. In this study, we aimed to investigate the effects of systemic treatment on the MN frequency in PBLs from patients with CRC in order to determine the effectiveness of the MN frequency as a biomarker. For this purpose, from 2016 to 2018, we quantified the MN frequency as a prognostic/predictive biomarker in serial samples from 25 patients with metastatic CRC (mCRC) using cytokinesis block micronucleus assay (CBMN assay). The MN frequency in the PBLs of the patients was evaluated before, during the middle and at the end of the therapy (approximately 0, 3 and 6 months). The results revealed a common pattern regarding the fluctuation in the MN frequency. Statistical analysis confirmed that when the disease response was estimated with radiological criteria, a good response was depicted at the MN frequency and vice versa. Consequently, the findings of this study suggest that the MN frequency may serve as a promising prognostic/predictive biomarker for the monitoring of the treatment response of patients with CRC.
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Affiliation(s)
| | | | - Paraskevi Apalaki
- Department of Forensic Sciences and Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Katerina Kalliantasi
- Department of Forensic Sciences and Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Theodoros Mariolis Sapsakos
- Laboratory of Anatomy and Histology, Nursing School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Demetrios A Spandidos
- Laboratory of Clinical Virology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Aristidis Tsatsakis
- Department of Forensic Sciences and Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - John Souglakos
- Department of Medical Oncology, University General Hospital of Heraklion, 71110 Heraklion, Greece
| | - John Tsiaoussis
- Laboratory of Anatomy-Histology-Embryology, Medical School, University of Crete, 71110 Heraklion, Greece
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