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Hwangbo H, Park C, Bang E, Kim HS, Bae SJ, Kim E, Jung Y, Leem SH, Seo YR, Hong SH, Kim GY, Hyun JW, Choi YH. Morroniside Protects C2C12 Myoblasts from Oxidative Damage Caused by ROS-Mediated Mitochondrial Damage and Induction of Endoplasmic Reticulum Stress. Biomol Ther (Seoul) 2024; 32:349-360. [PMID: 38602043 DOI: 10.4062/biomolther.2024.012] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/05/2024] [Accepted: 03/13/2024] [Indexed: 04/12/2024] Open
Abstract
Oxidative stress contributes to the onset of chronic diseases in various organs, including muscles. Morroniside, a type of iridoid glycoside contained in Cornus officinalis, is reported to have advantages as a natural compound that prevents various diseases. However, the question of whether this phytochemical exerts any inhibitory effect against oxidative stress in muscle cells has not been well reported. Therefore, the current study aimed to evaluate whether morroniside can protect against oxidative damage induced by hydrogen peroxide (H2O2) in murine C2C12 myoblasts. Our results demonstrate that morroniside pretreatment was able to inhibit cytotoxicity while suppressing H2O2-induced DNA damage and apoptosis. Morroniside also significantly improved the antioxidant capacity in H2O2-challenged C2C12 cells by blocking the production of cellular reactive oxygen species and mitochondrial superoxide and increasing glutathione production. In addition, H2O2-induced mitochondrial damage and endoplasmic reticulum (ER) stress were effectively attenuated by morroniside pretreatment, inhibiting cytoplasmic leakage of cytochrome c and expression of ER stress-related proteins. Furthermore, morroniside neutralized H2O2-mediated calcium (Ca2+) overload in mitochondria and mitigated the expression of calpains, cytosolic Ca2+-dependent proteases. Collectively, these findings demonstrate that morroniside protected against mitochondrial impairment and Ca2+-mediated ER stress by minimizing oxidative stress, thereby inhibiting H2O2-induced cytotoxicity in C2C12 myoblasts.
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Affiliation(s)
- Hyun Hwangbo
- Basic Research Laboratory for the Regulation of Microplastic-Mediated Diseases, Department of Biochemistry, College of Korean Medicine, Dong-eui University, Busan 47340, Republic of Korea
| | - Cheol Park
- Department Division of Basic Sciences, College of Liberal Studies, Dong-eui University, Busan 47340, Republic of Korea
| | - EunJin Bang
- Basic Research Laboratory for the Regulation of Microplastic-Mediated Diseases, Department of Biochemistry, College of Korean Medicine, Dong-eui University, Busan 47340, Republic of Korea
| | - Hyuk Soon Kim
- Department of Biomedical Sciences, College of Natural Science and Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Sung-Jin Bae
- Department of Molecular Biology and Immunology, Kosin University College of Medicine, Busan 49267, Republic of Korea
| | - Eunjeong Kim
- BK21 Plus KNU Creative BioResearch Group, School of Life Sciences, College of National Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Youngmi Jung
- Department of Biological Sciences, College of Natural Science, Pusan National University, Busan 46241, Republic of Korea
| | - Sun-Hee Leem
- Department of Biomedical Sciences, College of Natural Science and Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Young Rok Seo
- Institute of Environmental Medicine, Department of Life Science, Dongguk University Biomedi Campus, Goyang 10326, Republic of Korea
| | - Su Hyun Hong
- Basic Research Laboratory for the Regulation of Microplastic-Mediated Diseases, Department of Biochemistry, College of Korean Medicine, Dong-eui University, Busan 47340, Republic of Korea
| | - Gi-Young Kim
- Laboratory of Immunobiology, Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea
| | - Jin Won Hyun
- Department of Biochemistry, College of Medicine, and Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Yung Hyun Choi
- Basic Research Laboratory for the Regulation of Microplastic-Mediated Diseases, Department of Biochemistry, College of Korean Medicine, Dong-eui University, Busan 47340, Republic of Korea
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Jang Y, Na HW, Shin DY, Lee J, Han JP, Kim HS, Kim SJ, Choi EJ, Lee C, Hong YD, Kim HJ, Seo YR. Integrative analysis of RNA-sequencing and microarray for the identification of adverse effects of UVB exposure on human skin. Front Public Health 2024; 12:1328089. [PMID: 38444441 PMCID: PMC10913594 DOI: 10.3389/fpubh.2024.1328089] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/15/2024] [Indexed: 03/07/2024] Open
Abstract
Background Ultraviolet B (UVB) from sunlight represents a major environmental factor that causes toxic effects resulting in structural and functional cutaneous abnormalities in most living organisms. Although numerous studies have indicated the biological mechanisms linking UVB exposure and cutaneous manifestations, they have typically originated from a single study performed under limited conditions. Methods We accessed all publicly accessible expression data of various skin cell types exposed to UVB, including skin biopsies, keratinocytes, and fibroblasts. We performed biological network analysis to identify the molecular mechanisms and identify genetic biomarkers. Results We interpreted the inflammatory response and carcinogenesis as major UVB-induced signaling alternations and identified three candidate biomarkers (IL1B, CCL2, and LIF). Moreover, we confirmed that these three biomarkers contribute to the survival probability of patients with cutaneous melanoma, the most aggressive and lethal form of skin cancer. Conclusion Our findings will aid the understanding of UVB-induced cutaneous toxicity and the accompanying molecular mechanisms. In addition, the three candidate biomarkers that change molecular signals due to UVB exposure of skin might be related to the survival rate of patients with cutaneous melanoma.
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Affiliation(s)
- Yujin Jang
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Hye-Won Na
- Research and Innovation Center, Amorepacific, Gyeonggi-do, Republic of Korea
| | - Dong Yeop Shin
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Jun Lee
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Jun Pyo Han
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
- National Institute of Environmental Research, Incheon, Republic of Korea
| | - Su Ji Kim
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Eun-Jeong Choi
- Research and Innovation Center, Amorepacific, Gyeonggi-do, Republic of Korea
| | - Charles Lee
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, United States
| | - Yong Deog Hong
- Research and Innovation Center, Amorepacific, Gyeonggi-do, Republic of Korea
| | - Hyoung-June Kim
- Research and Innovation Center, Amorepacific, Gyeonggi-do, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
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Lee J, Shin DY, Jang Y, Han JP, Cho EM, Seo YR. Cadmium-induced Carcinogenesis in Respiratory Organs and the Prostate: Insights from Three Perspectives on Toxicogenomic Approach. J Cancer Prev 2023; 28:150-159. [PMID: 38205367 PMCID: PMC10774485 DOI: 10.15430/jcp.2023.28.4.150] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Cadmium (Cd) exposure primarily occurs through inhalation, either by smoking or occupational exposure to contaminated air. Upon inhalation, Cd ultimately reaches the prostate through the bloodstream. In this review, we investigate the carcinogenic potential of Cd in both respiratory organs and the prostate. Specifically, this review examines cellular metabolism, comprehensive toxicity, and carcinogenic mechanisms by exploring gene ontology, biological networks, and adverse outcome pathways. In the respiratory organs, Cd induces lung cancer by altering the expression of IL1B and FGF2, causing DNA damage, reducing cell junction integrity, and promoting apoptosis. In the prostate, Cd induces prostate cancer by modifying the expression of EDN1 and HMOX1, leading to abnormal protein activities and maturation, suppressing tumor suppressors, and inducing apoptosis. Collectively, this review provides a comprehensive understanding of the carcinogenic mechanisms of Cd in two different organs by adopting toxicogenomic approaches. These insights can serve as a foundation for further research on cadmium-induced cancer, contributing to the establishment of future cancer prevention strategies.
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Affiliation(s)
- Jun Lee
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Dong Yeop Shin
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Yujin Jang
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Jun Pyo Han
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Eun-Min Cho
- Department of Nano, Chemical & Biological Engineering, College of Natural Science and Engineering, Seokyeong University, Seoul, Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
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Han J, Jang Y, Shin DY, Lee J, Seo YR. Erratum: A Genomic Approach to Identify the Difference between Acute and Chronic UVB Exposures in the Causation of Inflammation and Cancer. J Cancer Prev 2023; 28:29. [PMID: 37033329 PMCID: PMC10080014 DOI: 10.15430/jcp.2023.28.1.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023] Open
Abstract
[This corrects the article on p. 199 in vol. 27, PMID: 36713944.].
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Affiliation(s)
- JunPyo Han
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Yujin Jang
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Dong Yeop Shin
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Jun Lee
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
- Correspondence to Young Rok Seo, E-mail: , https://orcid.org/0000-0002-4093-4073
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Han J, Jang Y, Shin DY, Lee J, Seo YR. A Genomic Approach to Identify the Different between Acute and Chronic UVB Exposures in the Causation of Inflammation and Cancer. J Cancer Prev 2022; 27:199-207. [PMID: 36713944 PMCID: PMC9836911 DOI: 10.15430/jcp.2022.27.4.199] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 01/11/2023] Open
Abstract
As a principal component of solar radiation, ultraviolet B (UVB) exposure can be harmful depending on the duration and intensity because the human body can easily be exposed to it. Many studies have demonstrated that UVB causes a series of inflammatory and other skin disorders. UVB has been classified as the Group 1 carcinogen by the International Agency for Research on Cancer. Diverse studies have focused on UVB exposure but the complex perspective of acute and chronic UVB exposure is still lacking. This review presents the differences between acute and chronic exposure to UVB and summarizes public information in terms of toxicogenomic characteristics. We also demonstrated the differences between adverse effects of acute and chronic UVB exposure on the skin system. From the published literatures, we compared the biological pathways predict of the adverse effects caused by each UVB exposure type. Furthermore, our review not only clarifies the differences in each UVB exposure network but also suggests major hub genes related to cellular mechanisms and diseases that are thought to be affected by acute and chronic UVB exposure.
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Affiliation(s)
- JunPyo Han
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Yujin Jang
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Dong Yeop Shin
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Jun Lee
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea,Correspondence to Young Rok Seo, E-mail: , https://orcid.org/0000-0002-4093-4073
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Na HW, Kim HS, Choi H, Cha N, Seo YR, Hong YD, Kim HJ. Transcriptome Analysis of Particulate Matter 2.5-Induced Abnormal Effects on Human Sebocytes. Int J Mol Sci 2022; 23:ijms231911534. [PMID: 36232834 PMCID: PMC9570376 DOI: 10.3390/ijms231911534] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/18/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Particulate matter 2.5 (PM2.5), an atmospheric pollutant with an aerodynamic diameter of <2.5 μm, can cause serious human health problems, including skin damage. Since sebocytes are involved in the regulation of skin homeostasis, it is necessary to study the effects of PM2.5 on sebocytes. We examined the role of PM2.5 via the identification of differentially expressed genes, functional enrichment and canonical pathway analysis, upstream regulator analysis, and disease and biological function analysis through mRNA sequencing. Xenobiotic and lipid metabolism, inflammation, oxidative stress, and cell barrier damage-related pathways were enriched; additionally, PM2.5 altered steroid hormone biosynthesis and retinol metabolism-related pathways. Consequently, PM2.5 increased lipid synthesis, lipid peroxidation, inflammatory cytokine expression, and oxidative stress and altered the lipid composition and expression of factors that affect cell barriers. Furthermore, PM2.5 altered the activity of sterol regulatory element binding proteins, mitogen-activated protein kinases, transforming growth factor beta-SMAD, and forkhead box O3-mediated pathways. We also suggest that the alterations in retinol and estrogen metabolism by PM2.5 are related to the damage. These results were validated using the HairSkin® model. Thus, our results provide evidence of the harmful effects of PM2.5 on sebocytes as well as new targets for alleviating the skin damage it causes.
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Affiliation(s)
- Hye-Won Na
- Research and Innovation Center, AMOREPACIFIC, Yongin 17074, Korea
| | - Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang 10326, Korea
| | - Hyunjung Choi
- Research and Innovation Center, AMOREPACIFIC, Yongin 17074, Korea
| | - Nari Cha
- Research and Innovation Center, AMOREPACIFIC, Yongin 17074, Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang 10326, Korea
| | - Yong Deog Hong
- Research and Innovation Center, AMOREPACIFIC, Yongin 17074, Korea
| | - Hyoung-June Kim
- Research and Innovation Center, AMOREPACIFIC, Yongin 17074, Korea
- Correspondence: ; Tel.: +82-31-280-5827; Fax: +82-31-899-2595
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Kang DS, Lee HJ, Seo YR, Lee CM, Hwang IT. Identifying the role of RUNX2 in bone development through network analysis in girls with central precocious puberty. Mol Cell Toxicol 2021. [DOI: 10.1007/s13273-021-00183-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kee NG, Kim HS, Choi H, Kim HJ, Seo YR. Genomic Approach to the Assessment of Adverse Effects of Particulate Matters on Skin Cancer and Other Disorders and Underlying Molecular Mechanisms. J Cancer Prev 2021; 26:153-161. [PMID: 34703818 PMCID: PMC8511580 DOI: 10.15430/jcp.2021.26.3.153] [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: 10/11/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 11/13/2022] Open
Abstract
Air pollutants are in the spotlight because the human body can easily be exposed to them. Among air pollutants, the particulate matter (PM) represents one of the most serious toxicants that can enter the human body through various exposure routes. PMs have various adverse effects and classified as severe carcinogen by International Agency for Research on Cancer. Their physical and chemical characteristics are distinguished by their size. In this review, we summarized the published information on the physicochemical characteristics and adverse effects of PMs on the skin, including carcinogenicity. Through comparisons of biological networks constructed from relationships discussed in the previous scientific publications, we show it is possible to predict skin cancers and other disorders from particle-size-specific signaling alterations of PM-responsive genes. Our review not only helps to grasp the biological association between ambient PMs and skin diseases including cancer, but also provides new approaches to interpret chemical-gene-disease associations regarding the adverse effects of these heterogeneous particles.
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Affiliation(s)
- Nam Gook Kee
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang, Korea
| | - Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang, Korea
| | - Hyunjung Choi
- Bioscience Lab., R&D Unit, AmorePacific Corporation, Yongin, Korea
| | - Hyoung-June Kim
- Bioscience Lab., R&D Unit, AmorePacific Corporation, Yongin, Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang, Korea
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Koedrith P, Rahman MM, Jang YJ, Shin DY, Seo YR. Nanoparticles: Weighing the Pros and Cons from an Eco-genotoxicological Perspective. J Cancer Prev 2021; 26:83-97. [PMID: 34258247 PMCID: PMC8249203 DOI: 10.15430/jcp.2021.26.2.83] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/05/2021] [Revised: 06/08/2021] [Accepted: 06/16/2021] [Indexed: 12/06/2022] Open
Abstract
The exponential growth of nanotechnology and the industrial production have raised concerns over its impact on human and environmental health and safety (EHS). Although there has been substantial progress in the assessment of pristine nanoparticle toxicities, their EHS impacts require greater clarification. In this review, we discuss studies that have assessed nanoparticle eco-genotoxicity in different test systems and their fate in the environment as well as the considerable confounding factors that may complicate the results. We highlight key mechanisms of nanoparticle-mediated genotoxicity. Then we discuss the reliability of endpoint assays, such as the comet assay, the most favored assessment technique because of its versatility to measure low levels of DNA strand breakage, and the micronucleus assay, which is complementary to the former because of its greater ability to detect chromosomal DNA fragmentation. We also address the current recommendations on experimental design, including environmentally relevant concentrations and suitable exposure duration to avoid false-positive or -negative results. The genotoxicity of nanoparticles depends on their physicochemical features and the presence of co-pollutants. Thus, the effect of environmental processes (e.g., aggregation and agglomeration, adsorption, and transformation of nanoparticles) would account for when determining the actual genotoxicity relevant to environmental systems, and assay procedures must be standardized. Indeed, the engineered nanoparticles offer potential applications in different fields including biomedicine, environment, agriculture, and industry. Toxicological pathways and the potential risk factors related to genotoxic responses in biological organisms and environments need to be clarified before appropriate and sustainable applications of nanoparticles can be established.
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Affiliation(s)
- Preeyaporn Koedrith
- Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea.,Faculty of Environment and Resource Studies, Mahidol University, Nakhon Pathom, Thailand
| | - Md Mujibur Rahman
- Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Goyang, Korea
| | - Yu Jin Jang
- Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Dong Yeop Shin
- Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Young Rok Seo
- Faculty of Environment and Resource Studies, Mahidol University, Nakhon Pathom, Thailand.,Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
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Kang DS, Kim HS, Jung JH, Lee CM, Ahn YS, Seo YR. Formaldehyde exposure and leukemia risk: a comprehensive review and network-based toxicogenomic approach. Genes Environ 2021; 43:13. [PMID: 33845901 PMCID: PMC8042688 DOI: 10.1186/s41021-021-00183-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 03/19/2021] [Indexed: 12/20/2022] Open
Abstract
Formaldehyde is a widely used but highly reactive and toxic chemical. The International Agency for Research on Cancer classifies formaldehyde as a Group 1 carcinogen, based on nasopharyngeal cancer and leukemia studies. However, the correlation between formaldehyde exposure and leukemia incidence is a controversial issue. To understand the association between formaldehyde exposure and leukemia, we explored biological networks based on formaldehyde-related genes retrieved from public and commercial databases. Through the literature-based network approach, we summarized qualitative associations between formaldehyde exposure and leukemia. Our results indicate that oxidative stress-mediated genetic changes induced by formaldehyde could disturb the hematopoietic system, possibly leading to leukemia. Furthermore, we suggested major genes that are thought to be affected by formaldehyde exposure and associated with leukemia development. Our suggestions can be used to complement experimental data for understanding and identifying the leukemogenic mechanism of formaldehyde.
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Affiliation(s)
- Doo Seok Kang
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Jong-Hyeon Jung
- Faculty of Health Science, Daegu Haany University, Gyeongsan, Gyeongbuk, 38610, Republic of Korea
| | - Cheol Min Lee
- Department of Chemical and Biological Engineering, College of Natural Science and Engineering, Seokyeong University, Seoul, 02173, Republic of Korea
| | - Yeon-Soon Ahn
- Department of Preventive Medicine and Institute of Occupational and Environmental Medicine, Wonju College of Medicine, Yonsei University, Wonju, Gangwon, 26426, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea.
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Kim HL, Kim YJ, Kee NG, Koedrith P, Seo YR. Novel mechanism of base excision repair inhibition by low-dose nickel(II): interference of p53-mediated APE1 function. Mol Cell Toxicol 2021. [DOI: 10.1007/s13273-021-00122-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim HS, Kim HJ, Kim N, Song JJ, Son BS, Yang JH, Lee CM, Park MK, Seo YR. Toxicogenomic study to identify potential signaling alterations related to nasal inflammatory damages induced by diesel exhaust particles in primary human nasal epithelial cells. Toxicol In Vitro 2020; 69:104994. [PMID: 32891722 DOI: 10.1016/j.tiv.2020.104994] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/24/2020] [Accepted: 09/01/2020] [Indexed: 10/23/2022]
Abstract
In this study, we aimed to identify signaling alteration caused by exposure to diesel exhaust particles (DEPs) using primary human nasal epithelial cells (PHNECs). Global gene expression profiles in PHNECs following 50 and 200 μg/ml of DEP exposure were identified using microarray analysis. To cover the limitation of array-based mRNA expression analysis, text-mining-based software was used to analyze the integrative biological networks and relevant disease-focused functions among identified DEP-responsive genes. The confidence was valued based on the connectivity between the analyzed pathway and marker candidates. Through a literature-based pathway analysis, the stimulation of inflammation- and immune response-related processes mediated by TNF were predicted as major signaling alterations in PHNECs caused by DEP exposure. CSF3, CXCL8, MMP1, and VEGFA were identified as key hub genes in the predicted pathway. Significant expression level changes in the five key genes following DEP exposure were validated in terms of protein and mRNA expression. Although further studies are required, our toxicogenomic investigation provides key clues to the exact mechanism underlying DEP-induced nasal inflammatory damage. It also suggests an efficient approach for other research on adverse effects occurring in the upper respiratory tract following DEP exposure.
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Affiliation(s)
- Hyun Soo Kim
- Department of Life Science, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea; Institute of Environmental Medicine, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Hyo Jeong Kim
- Department of Life Science, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea; Institute of Environmental Medicine, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Nahyun Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jae-Jun Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Republic of Korea
| | - Bu-Soon Son
- Department of Environmental Health Science, Soonchunhyang University, Asan, South Korea
| | - Jun Hyuek Yang
- Department of Life Science, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea; Institute of Environmental Medicine, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Cheol Min Lee
- Department of Chemical and Biological Engineering, Seokyeong University, Seoul, Republic of Korea
| | - Moo Kyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Young Rok Seo
- Department of Life Science, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea; Institute of Environmental Medicine, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea.
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Kim HS, Kim BG, Park S, Kim N, Jang AS, Seo YR, Park MK. Gene Expression Analysis to Investigate Biological Networks Underlying Nasal Inflammatory Dysfunctions Induced by Diesel Exhaust Particles Using an In Vivo System. Ann Otol Rhinol Laryngol 2019; 129:245-255. [PMID: 31646875 DOI: 10.1177/0003489419883289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Diesel exhaust particles (DEP)s are notorious ambient pollutants composed of a complex mixture of a carbon core and diverse chemical irritants. Several studies have demonstrated significant relationships between DEP exposure and serious nasal inflammatory response in vitro, but available information regarding underlying networks in terms of gene expression changes has not sufficiently explained potential mechanisms of DEP-induced nasal damage, especially in vivo. METHODS In the present study, we identified DEP-induced gene expression profiles under short-term and long-term exposure, and identified signaling pathways based on microarray data for understanding effects of DEP exposure in the mouse nasal cavity. RESULTS Alteration in gene expression due to DEP exposure provokes an imbalance of the immune system via dysregulated inflammatory markers, predicted to disrupt protective responses against harmful exogenous substances in the body. Several candidate markers were identified after validation using qRT-PCR, including S100A9, CAMP, IL20, and S100A8. CONCLUSIONS Although further mechanistic studies are required for verifying the utility of the potential biomarkers suggested by the present study, our in vivo results may provide meaningful suggestions for understanding the complex cellular signaling pathways involved in DEP-induced nasal damages.
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Affiliation(s)
- Hyun Soo Kim
- Institute of Environmental Medicine, Department of Life Science, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Byeong-Gon Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sohyeon Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Nahyun Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - An-Soo Jang
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Young Rok Seo
- Institute of Environmental Medicine, Department of Life Science, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Moo Kyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
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Yang JH, Koedrith P, Kang DS, Kee NK, Jung JH, Lee CM, Ahn YS, Seo YR. A Putative Adverse Outcome Pathway Relevant to Carcinogenicity Induced by Sulfuric Acid in Strong Inorganic Acid Mists. J Cancer Prev 2019; 24:139-145. [PMID: 31624719 PMCID: PMC6786810 DOI: 10.15430/jcp.2019.24.3.139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 12/31/2018] [Revised: 09/14/2019] [Accepted: 09/17/2019] [Indexed: 01/16/2023] Open
Abstract
Based on epidemiological studies, an International Agency for Research on Cancer Working Group determined that strong inorganic acid mists containing sulfuric acid are carcinogenic to human even though, sulfuric acid, per se, is not. Accumulative studies indicate that there is a link between chronic occupational exposure to sulfuric acid mists and an increased risk of laryngeal cancer. Unintended, acute exposure to sulfuric acid mists can cause corrosive damage to target tissues depending on the route of exposure. This review compares the toxicity and carcinogenicity of sulfuric acid mists compared to other strong inorganic acid mists. It also examines the routes and duration of exposure (short-term, prolonged, and long-term). In vivo evidence does not support or refute the carcinogenicity of sulfuric inorganic mists even though its co-carcinogenic or promoting potential has been considered. On the basis of existing evidence on sulfuric acid mist toxicity, we suggested a putative adverse outcome pathway (AOP) relevant to carcinogenicity caused by mists containing sulfuric acid. A possible key factor involved in sulfuric acid mist carcinogenesis is the genotoxic effects of low pH since it can increase instability in chromosomes and DNA. A putative AOP for sulfuric acid mist carcinogenicity would help generate better risk assessments and more accurate predictions regarding the risk of developing cancer due to prolonged exposure. Establishing an AOP would also be useful for future studies examining the carcinogenicity of other strong inorganic mists.
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Affiliation(s)
- Jun Hyuek Yang
- Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Preeyaporn Koedrith
- Faculty of Environment and Resource Studies, Mahidol University, NakhonPathom, Thailand
| | - Doo Seok Kang
- Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Nam Kook Kee
- Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Jong-Hyeon Jung
- Faculty of Health Science, Daegu Haany University, Gyeongsan, Korea
| | - Cheol Min Lee
- Department of Chemical and Biological Engineering, College of Natural Science and Engineering, Seokyeong University, Seoul, Korea
| | - Yeon-Soon Ahn
- Department of Preventive Medicine and Institute of Occupational and Environmental Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Young Rok Seo
- Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
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Kim HS, Kim YJ, Kim SJ, Kang DS, Lee TR, Shin DW, Kim HJ, Seo YR. Transcriptomic analysis of human dermal fibroblast cells reveals potential mechanisms underlying the protective effects of visible red light against damage from ultraviolet B light. J Dermatol Sci 2019; 94:276-283. [PMID: 30956030 DOI: 10.1016/j.jdermsci.2019.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Ultraviolet B (UVB) radiation is a major cause of skin photodamage, including the damage associated with photodermatoses, aging, and cancer. Although many studies have shown that red light has photoprotective effects on skin, the mechanisms underlying these effects are still poorly understood. OBJECTIVE The aim of this study was to identify the photoprotective effects of visible red light against UVB-induced skin damage in normal human dermal fibroblast cells using a transcriptomic approach. METHODS Next-generation sequencing-based transcriptomic analyses were used to profile transcriptomic alterations and identify genes that are differentially expressed by visible red light and by UVB exposure. To understand the biological networks among identified genes, a literature-based biological pathway analysis was performed. Quantitative real-time polymerase chain reaction assays were used for mRNA-level validation of selected key genes. RESULTS We observed that visible red light contributes to skin cell protection against UVB by modulating gene expression that enhances the adaptive response to redox and inflammatory balancing and by upregulating genes involved in DNA excision repair processes. We also identified that several key genes in the red light-induced biological network were differentially regulated. CONCLUSIONS Visible red light enhanced the UVB-protective effects in normal human skin cells via the transcriptomic modulation of genes involved in cell-protective processes. Our findings from this next-generation sequencing analysis may lead to a better understanding of the cytoprotective effects of visible red light and provide direction for further molecular or mechanistic studies.
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Affiliation(s)
- Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Yeo Jin Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Su Ji Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Doo Seok Kang
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Tae Ryong Lee
- Bioscience Research Institute, Amorepacific Corporation R&D Center, 1920, Yonggu-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17074, Republic of Korea
| | - Dong Wook Shin
- College of Biomedical & Health Science, Konkuk University, Chungju, 27478, Korea.
| | - Hyoung-June Kim
- Bioscience Research Institute, Amorepacific Corporation R&D Center, 1920, Yonggu-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17074, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
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Kim YJ, Rahman MM, Lee SM, Kim JM, Park K, Kang JH, Seo YR. Assessment of in vivo genotoxicity of citrated-coated silver nanoparticles via transcriptomic analysis of rabbit liver tissue. Int J Nanomedicine 2019; 14:393-405. [PMID: 30662263 PMCID: PMC6329348 DOI: 10.2147/ijn.s174515] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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] [Indexed: 12/14/2022] Open
Abstract
Background Silver nanoparticles (AgNPs) are widely used in industrial and household applications, arousing concern regarding their safety in humans. The risks posed by stabilizer-coated AgNPs continue to be unclear, and assessing their toxicity is for an understanding of the safety issues involved in their use in various applications. Purpose We aimed to investigated the long-term toxicity of citrate-coated silver nanoparticles (cAgNPs) in liver tissue using several toxicity tests and transcriptomic analysis at 7 and 28 days after a single intravenous injection into rabbit ear veins (n=4). Materials and methods The cAgNPs used in this study were in the form of a 20% (w/v) aqueous solution, and their size was 7.9±0.95 nm, measured using transmission electron microscopy. The animal experiments were performed based on the principles of good laboratory practice. Results Our results showed that the structure and function of liver tissue were disrupted due to a single exposure to cAgNPs. In addition, in vivo comet assay showed unrepaired genotoxicity in liver tissue until 4 weeks after a single injection, suggesting a potential carcinogenic effect of cAgNPs. In our transcriptomic analysis, a total of 244 genes were found to have differential expression at 28 days after a single cAgNP injection. Carefully curated pathway analysis of these genes using Pathway Studio and Ingenuity Pathway Analysis tools revealed major molecular networks responding to cAgNP exposure and indicated a high correlation of the genes with inflammation, hepatotoxicity, and cancer. Molecular validation suggested potential biomarkers for assessing the toxicity of accumulated cAgNPs. Conclusion Our investigation highlights the risk associated with a single cAgNP exposure with unrepaired damage persisting for at least a month.
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Affiliation(s)
- Yeo Jin Kim
- Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Ilsandong-gu, Goyang-si, Republic of Korea, .,Department of Life Science, Dongguk University Biomedi Campus, Ilsandong-gu, Goyang-si, Republic of Korea,
| | - Md Mujibur Rahman
- Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Ilsandong-gu, Goyang-si, Republic of Korea,
| | - Sang Min Lee
- Department of Life Science, Dongguk University Biomedi Campus, Ilsandong-gu, Goyang-si, Republic of Korea,
| | - Jung Min Kim
- Genoplan Korea, Inc., Seocho-gu, Seoul, Republic of Korea
| | - Kwangsik Park
- College of Pharmacy, Dongduk Women's University, Seongbuk-gu, Seoul, Republic of Korea
| | - Joo-Hyon Kang
- Department of Civil & Environmental Engineering, Dongguk University, Jung-gu, Seoul, Republic of Korea
| | - Young Rok Seo
- Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Ilsandong-gu, Goyang-si, Republic of Korea, .,Department of Life Science, Dongguk University Biomedi Campus, Ilsandong-gu, Goyang-si, Republic of Korea,
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Kim YJ, Lee YJ, Kim HJ, Kim HS, Kang MS, Lee SK, Park MK, Murata K, Kim HL, Seo YR. A molecular mechanism of nickel (II): reduction of nucleotide excision repair activity by structural and functional disruption of p53. Carcinogenesis 2018; 39:1310. [PMID: 30239626 DOI: 10.1093/carcin/bgy118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yeo Jin Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Young Ju Lee
- Department of Pharmacology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyo Jeong Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Mi-Sun Kang
- Department of Pharmacology, College of Medicine, Inha University, Incheon, Republic of Korea
| | - Sung-Keun Lee
- Department of Pharmacology, College of Medicine, Inha University, Incheon, Republic of Korea
| | - Moo Kyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kazuyoshi Murata
- Section of Electron Microscopy, Section of Brain Structure Information, National Institute for Physiological Sciences, Okazaki, Aichi, Japan
| | - Hye Lim Kim
- Forensic DNA Division, Gwangju Institute of National Forensic Service, Jangseong-gun, Jeonnam, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
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Kang DS, Yang JH, Kim HS, Koo BK, Lee CM, Ahn YS, Jung JH, Seo YR. Application of the Adverse Outcome Pathway Framework to Risk Assessment for Predicting Carcinogenicity of Chemicals. J Cancer Prev 2018; 23:126-133. [PMID: 30370257 PMCID: PMC6197844 DOI: 10.15430/jcp.2018.23.3.126] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 09/11/2018] [Revised: 09/25/2018] [Accepted: 09/27/2018] [Indexed: 12/26/2022] Open
Abstract
As industry develops in modern society, many chemicals are being used. The safety of chemicals is an important issue because humans are constantly exposed to chemicals throughout their daily life. Through a risk assessment, the hazardous human effects of chemicals can be identified. Recently, the adverse outcome pathway (AOP) framework has been used to predict the adverse effects of chemicals. As a conceptual framework for organizing existing biological knowledge, the AOP consists of a molecular initiating event, key events, and an adverse outcome. These independent elements represent biological responses and are connected by key event relationships. This AOP framework provides intuitive hazard identification that can be helpful for carcinogenic risk assessment of chemicals. In this review, we introduce the application of the AOP framework to risk assessment for predicting carcinogenicity of chemicals and illustrate the utility of this approach for cancer prevention.
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Affiliation(s)
- Doo Seok Kang
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Jun Hyuek Yang
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Hyun Soo Kim
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Bon Kon Koo
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
| | - Cheol Min Lee
- Department of Chemical and Biological Engineering, College of Natural Science and Engineering, Seokyeong University, Seoul, Korea
| | - Yeon-Soon Ahn
- Department of Preventive Medicine and Institute of Occupational and Environmental Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jong-Hyeon Jung
- Faculty of Health Science, Daegu Haany University, Gyeongsan, Korea
| | - Young Rok Seo
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk University Biomedi Campus, Goyang, Korea
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Kim YJ, Lee YJ, Kim HJ, Kim HS, Kang MS, Lee SK, Park MK, Murata K, Kim HL, Seo YR. A molecular mechanism of nickel (II): reduction of nucleotide excision repair activity by structural and functional disruption of p53. Carcinogenesis 2018; 39:1157-1164. [DOI: 10.1093/carcin/bgy070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 05/29/2018] [Indexed: 01/23/2023] Open
Affiliation(s)
- Yeo Jin Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Young Ju Lee
- Department of Pharmacology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyo Jeong Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Mi-Sun Kang
- Department of Pharmacology, College of Medicine, Inha University, Incheon, Republic of Korea
| | - Sung-Keun Lee
- Department of Pharmacology, College of Medicine, Inha University, Incheon, Republic of Korea
| | - Moo Kyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kazuyoshi Murata
- Section of Electron Microscopy, Section of Brain Structure Information, National Institute for Physiological Sciences, Okazaki, Aichi, Japan
| | - Hye Lim Kim
- Forensic DNA Division, Gwangju Institute of National Forensic Service, Jangseong-gun, Jeonnam, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
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Yang JH, Kim HJ, Lee SM, Kim BM, Seo YR. Cadmium-induced biomarkers discovery and comparative network analysis in Daphnia magna. Mol Cell Toxicol 2017. [DOI: 10.1007/s13273-017-0036-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kim HS, Lee SM, Kim YJ, Jang W, Seo YR. Integrative toxicogenomic analysis for elucidating molecular interference on DNA integrity and repair system with underlying signaling networks in response to low-level lead acetate in rat liver model. Mol Cell Toxicol 2017. [DOI: 10.1007/s13273-017-0019-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kim HJ, Choi MG, Park MK, Seo YR. Predictive and Prognostic Biomarkers of Respiratory Diseases due to Particulate Matter Exposure. J Cancer Prev 2017; 22:6-15. [PMID: 28382281 PMCID: PMC5380184 DOI: 10.15430/jcp.2017.22.1.6] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/09/2017] [Accepted: 02/10/2017] [Indexed: 12/11/2022] Open
Abstract
Air pollution is getting severe and concerns about its toxicity effects on airway and lung disease are also increasing. Particulate matter (PM) is major component of air pollutant. It causes respiratory diseases, such as asthma, chronic obstructive pulmonary disease, lung cancer, and so on. PM particles enter the airway and lung by inhalation, causing damages to them. Especially, PM2.5 can penetrate into the alveolus and pass to the systemic circulation. It can affect the cardiopulmonary system and cause cardiopulmonary disorders. In this review, we focused on PM-inducing toxicity mechanisms in the framework of oxidative stress, inflammation, and epigenetic changes. We also reviewed its correlation with respiratory diseases. In addition, we reviewed biomarkers related to PM-induced respiratory diseases. These biomarkers might be used for disease prediction and early diagnosis. With recent trend of using genomic analysis tools in the field of toxicogenomics, respiratory disease biomarkers associated with PM will be continuously investigated. Effective biomarkers derived from earlier studies and further studies might be utilized to reduce respiratory diseases.
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Affiliation(s)
- Hyo Jeong Kim
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk Bio-Med Campus, Dongguk University, Goyang, Korea
| | - Min Gi Choi
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk Bio-Med Campus, Dongguk University, Goyang, Korea
| | - Moo Kyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Young Rok Seo
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk Bio-Med Campus, Dongguk University, Goyang, Korea
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Kim HJ, Kim SY, Kwon JY, Kim YJ, Hun Kang S, Jang WH, Lee JH, Suh MW, Song JJ, Seo YR, Park MK. Correction: Identification of Potential Novel Biomarkers and Signaling Pathways Related to Otitis Media Induced by Diesel Exhaust Particles Using Transcriptomic Analysis in an In Vivo System. PLoS One 2017; 12:e0174460. [PMID: 28319172 PMCID: PMC5358890 DOI: 10.1371/journal.pone.0174460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Ito-Harashima S, Mizutani Y, Nishimura M, Kim HJ, Kim YJ, Kim HS, Bae JH, Koedrith P, Kawanishi M, Seo YR, Yagi T. A pilot study for construction of a new cadmium-sensing yeast strain carrying a reporter plasmid with the JLP1 promoter. J Toxicol Sci 2017; 42:103-109. [DOI: 10.2131/jts.42.103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
| | - Yui Mizutani
- Department of Biology, Graduate School of Science, Osaka Prefecture University
| | - Motoshi Nishimura
- Department of Biology, Graduate School of Science, Osaka Prefecture University
| | - Hyo Jeong Kim
- Department of Life Science, Dongguk University, South Korea
| | - Yeo Jin Kim
- Department of Life Science, Dongguk University, South Korea
| | - Hyun Soo Kim
- Department of Life Science, Dongguk University, South Korea
| | - Ji Hye Bae
- Department of Life Science, Dongguk University, South Korea
| | - Preeyaporn Koedrith
- Department of Life Science, Dongguk University, South Korea
- Present address: Faculty of Environment and Resource Studies, Mahidol University, Thailand
| | - Masanobu Kawanishi
- Department of Biology, Graduate School of Science, Osaka Prefecture University
| | - Young Rok Seo
- Department of Life Science, Dongguk University, South Korea
| | - Takashi Yagi
- Department of Biology, Graduate School of Science, Osaka Prefecture University
- Department of Life Science, Dongguk University, South Korea
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Kim HS, Lee HJ, Kim YJ, Jang WH, Seo YR. A toxicogenomic study for the investigation of genotoxicity-related signaling networks in long-term and low dose lead exposed rat kidney. Mol Cell Toxicol 2016. [DOI: 10.1007/s13273-016-0048-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Kim HJ, Kim SY, Kwon JY, Kim YJ, Hun Kang S, Jang WH, Lee JH, Seo MW, Song JJ, Seo YR, Park MK. Identification of Potential Novel Biomarkers and Signaling Pathways Related to Otitis Media Induced by Diesel Exhaust Particles Using Transcriptomic Analysis in an In Vivo System. PLoS One 2016; 11:e0166044. [PMID: 27832168 PMCID: PMC5104406 DOI: 10.1371/journal.pone.0166044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 10/09/2016] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION Air pollutants are associated with inflammatory diseases such as otitis media (OM). Significantly higher incidence rates of OM are reported in regions with air pollution. Diesel exhaust particles (DEPs) comprise a major class of contaminants among numerous air pollutants, and they are characterized by a carbonic mixture of polycyclic aromatic hydrocarbons (PAHs), nitro-PAHs, and small amounts of sulfate, nitrate, metals and other trace elements. DEP exposure is a risk factor for inflammatory diseases. Our previous study identified potential biomarkers using gene expression microarray and pathway analyses in an in vitro system. Although in vitro investigations have been conducted to elucidate plausible biomarkers and molecular mechanisms related to DEP exposure, in vivo studies are necessary to identify the exact biological relevance regarding the incidence of OM caused by DEP exposure. In this study, we identified potential molecular biomarkers and pathways triggered by DEP exposure in a rodent model. METHODS Transcriptomic analysis was employed to identify novel potential biomarkers in the middle ear of DEP-exposed mice. RESULTS A total of 697 genes were differentially expressed in the DEP-exposed mice; 424 genes were upregulated and 273 downregulated. In addition, signaling pathways among the differentially expressed genes mediated by DEP exposure were predicted. Several key molecular biomarkers were identified including cholinergic receptor muscarinic 1 (CHRM1), erythropoietin (EPO), son of sevenless homolog 1 (SOS1), estrogen receptor 1 (ESR1), cluster of differentiation 4 (CD4) and interferon alpha-1 (IFNA1). CONCLUSIONS Our results shed light on the related cell processes and gene signaling pathways affected by DEP exposure. The identified biomarkers might be potential candidates for determining early diagnoses and effective treatment strategies for DEP-mediated disorders.
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Affiliation(s)
- Hyo Jeong Kim
- Department of Life Science, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 410–820, South Korea
- Institute of Environmental Medicine, Dongguk University, Seoul, South Korea
| | - So Young Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Bundang CHA Medical Center, CHA University, Seongnam, South Korea
| | - Jee Young Kwon
- Department of Life Science, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 410–820, South Korea
- Institute of Environmental Medicine, Dongguk University, Seoul, South Korea
| | - Yeo Jin Kim
- Department of Life Science, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 410–820, South Korea
- Institute of Environmental Medicine, Dongguk University, Seoul, South Korea
| | - Seung Hun Kang
- Department of Life Science, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 410–820, South Korea
- Institute of Environmental Medicine, Dongguk University, Seoul, South Korea
| | - Won-Hee Jang
- Department of Life Science, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 410–820, South Korea
- Institute of Environmental Medicine, Dongguk University, Seoul, South Korea
| | - Jun Ho Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Myung-Whan Seo
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Jae-Jun Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, South Korea
| | - Young Rok Seo
- Department of Life Science, Dongguk University Biomedi Campus, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 410–820, South Korea
- Institute of Environmental Medicine, Dongguk University, Seoul, South Korea
- * E-mail: (MKP); (YRS)
| | - Moo Kyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, South Korea
- * E-mail: (MKP); (YRS)
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Kim YJ, Kim HJ, Kim HL, Kim HJ, Kim HS, Lee TR, Shin DW, Seo YR. A Protective Mechanism of Visible Red Light in Normal Human Dermal Fibroblasts: Enhancement of GADD45A-Mediated DNA Repair Activity. J Invest Dermatol 2016; 137:466-474. [PMID: 27729279 DOI: 10.1016/j.jid.2016.07.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 07/16/2016] [Accepted: 07/21/2016] [Indexed: 01/21/2023]
Abstract
The phototherapeutic effects of visible red light on skin have been extensively investigated, but the underlying biological mechanisms remain poorly understood. We aimed to elucidate the protective mechanism of visible red light in terms of DNA repair of UV-induced oxidative damage in normal human dermal fibroblasts. The protective effect of visible red light on UV-induced DNA damage was identified by several assays in both two-dimensional and three-dimensional cell culture systems. With regard to the protective mechanism of visible red light, our data showed alterations in base excision repair mediated by growth arrest and DNA damage inducible, alpha (GADD45A). We also observed an enhancement of the physical activity of GADD45A and apurinic/apyrimidinic endonuclease 1 (APE1) by visible red light. Moreover, UV-induced DNA damages were diminished by visible red light in an APE1-dependent manner. On the basis of the decrease in GADD45A-APE1 interaction in the activating transcription factor-2 (ATF2)-knockdown system, we suggest a role for ATF2 modulation in GADD45A-mediated DNA repair upon visible red light exposure. Thus, the enhancement of GADD45A-mediated base excision repair modulated by ATF2 might be a potential protective mechanism of visible red light.
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Affiliation(s)
- Yeo Jin Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Hyoung-June Kim
- Bioscience Research Institute, Amorepacific Corporation R&D Center, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Hye Lim Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Hyo Jeong Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Tae Ryong Lee
- Bioscience Research Institute, Amorepacific Corporation R&D Center, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Dong Wook Shin
- Bioscience Research Institute, Amorepacific Corporation R&D Center, Yongin-si, Gyeonggi-do, Republic of Korea.
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University Biomedi Campus, Goyang-si, Gyeonggi-do, Republic of Korea.
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Park MY, Kim MY, Seo YR, Kim JS, Sung MK. Erratum: High-fat Diet Accelerates Intestinal Tumorigenesis Through Disruption Intestinal Cell Membrane Integrity. J Cancer Prev 2016; 21:207. [PMID: 27722148 PMCID: PMC5051596 DOI: 10.15430/jcp.2016.21.3.207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Mi-Young Park
- Department of Food and Nutrition Education, Graduate School of Education, Soonchunhyang University, Asan, Korea
| | - Min Young Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul, Korea
| | - Jong-Sang Kim
- School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
| | - Mi-Kyung Sung
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea
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Park MY, Kim MY, Seo YR, Kim JS, Sung MK. High-fat Diet Accelerates Intestinal Tumorigenesis Through Disrupting Intestinal Cell Membrane Integrity. J Cancer Prev 2016; 21:95-103. [PMID: 27390738 PMCID: PMC4933433 DOI: 10.15430/jcp.2016.21.2.95] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 06/06/2016] [Revised: 06/16/2016] [Accepted: 06/16/2016] [Indexed: 01/29/2023] Open
Abstract
Background: Excess energy supply induces chronic low-grade inflammation in association with oxidative stress in various tissues including intestinal epithelium. The objective of this study was to investigate the effect of high-fat diet (HFD) on intestinal cell membrane integrity and intestinal tumorigenesis in ApcMin/+ mice. Methods: Mice were fed with either normal diet (ND) or HFD for 12 weeks. The number of intestinal tumors were counted and biomarkers of endotoxemia, oxidative stress, and inflammation were determined. Changes in intestinal integrity was measured by fluorescein isothiocyanate (FITC)-dextran penetration and membrane gap junction protein expression. Results: HFD group had significantly higher number of tumors compared to ND group (P < 0.05). Blood total antioxidant capacity was lower in HFD group, while colonic 8-hydroxy-2′-deoxyguanosine level, a marker of oxidative damage, was higher in HFD group compared to that of ND group (P < 0.05). The penetration of FITC-dextran was substantially increased in HFD group (P < 0.05) while the expressions of membrane gap junction proteins including zonula occludens-1, claudin-1, and occludin were lower in HFD group (P < 0.05) compared to those in ND group. Serum concentration of lipopolysaccharide (LPS) receptor (CD14) and colonic toll-like receptor 4 (a LPS receptor) mRNA expression were significantly higher in HFD group than in ND group (P < 0.05), suggesting that significant endotoxemia may occur in HFD group due to the increased membrane permeability. Serum interleukin-6 concentration and myeloperoxidase activity were also higher in HFD group compared to those of ND group (P < 0.05). Conclusions: HFD increases oxidative stress disrupting intestinal gap junction proteins, thereby accelerating membrane permeability endotoxemia, inflammation, and intestinal tumorigenesis.
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Affiliation(s)
- Mi-Young Park
- Department of Food and Nutrition Education, Graduate School of Education, Soonchunhyang University, Asan, Daegu, Korea
| | - Min Young Kim
- Department of Food and Nutrition, Sookmyung Women's University, Daegu, Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul, Korea
| | - Jong-Sang Kim
- School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
| | - Mi-Kyung Sung
- Department of Food and Nutrition, Sookmyung Women's University, Daegu, Korea
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Kim HS, Kim YJ, Seo YR. An Overview of Carcinogenic Heavy Metal: Molecular Toxicity Mechanism and Prevention. J Cancer Prev 2015; 20:232-40. [PMID: 26734585 PMCID: PMC4699750 DOI: 10.15430/jcp.2015.20.4.232] [Citation(s) in RCA: 268] [Impact Index Per Article: 29.8] [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: 12/09/2015] [Revised: 12/12/2015] [Accepted: 12/14/2015] [Indexed: 11/12/2022] Open
Abstract
Almost all heavy metals are serious toxicants as carcinogens. However, due to their chemical and physiological properties, heavy metals are useful in industrial areas including alloy, smelting and production of commercial products. Such applications increase the opportunity for heavy metal exposure. Waste from industrial processes is also a major source of environmental contamination and accumulation in the human body. Arsenic, cadmium, chromium, and nickel are classified as group 1 carcinogens by the International Agency for Research on Cancer, and are utilized commercially. In this review, we used molecular pathway analysis to understand the toxicity and carcinogenic mechanisms of these metals. Our analyzed data showed that above-mentioned metallic substances induce oxidative stress, DNA damage, and cell death processes, resulting in increase the risk of cancer and cancer-related diseases. Thus, we might think phytochelatin molecules and antioxidative phytochemical substances are helpful for prevention of heavy metal-induced cancer.
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Affiliation(s)
- Hyun Soo Kim
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk University Biomedical Campus, Goyang, Korea
| | - Yeo Jin Kim
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk University Biomedical Campus, Goyang, Korea
| | - Young Rok Seo
- Institute of Environmental Medicine for Green Chemistry, Department of Life Science, Dongguk University Biomedical Campus, Goyang, Korea
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Koedrith P, Kim HL, Seo YR. Integrative toxicogenomics-based approach to risk assessment of heavy metal mixtures/complexes: strategies and challenges. Mol Cell Toxicol 2015. [DOI: 10.1007/s13273-015-0026-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Kim HJ, Koedrith P, Seo YR. Ecotoxicogenomic approaches for understanding molecular mechanisms of environmental chemical toxicity using aquatic invertebrate, Daphnia model organism. Int J Mol Sci 2015; 16:12261-87. [PMID: 26035755 PMCID: PMC4490443 DOI: 10.3390/ijms160612261] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/14/2015] [Accepted: 05/15/2015] [Indexed: 01/02/2023] Open
Abstract
Due to the rapid advent in genomics technologies and attention to ecological risk assessment, the term “ecotoxicogenomics” has recently emerged to describe integration of omics studies (i.e., transcriptomics, proteomics, metabolomics, and epigenomics) into ecotoxicological fields. Ecotoxicogenomics is defined as study of an entire set of genes or proteins expression in ecological organisms to provide insight on environmental toxicity, offering benefit in ecological risk assessment. Indeed, Daphnia is a model species to study aquatic environmental toxicity designated in the Organization for Economic Co-operation and Development’s toxicity test guideline and to investigate expression patterns using ecotoxicology-oriented genomics tools. Our main purpose is to demonstrate the potential utility of gene expression profiling in ecotoxicology by identifying novel biomarkers and relevant modes of toxicity in Daphnia magna. These approaches enable us to address adverse phenotypic outcomes linked to particular gene function(s) and mechanistic understanding of aquatic ecotoxicology as well as exploration of useful biomarkers. Furthermore, key challenges that currently face aquatic ecotoxicology (e.g., predicting toxicant responses among a broad spectrum of phytogenetic groups, predicting impact of temporal exposure on toxicant responses) necessitate the parallel use of other model organisms, both aquatic and terrestrial. By investigating gene expression profiling in an environmentally important organism, this provides viable support for the utility of ecotoxicogenomics.
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Affiliation(s)
- Hyo Jeong Kim
- Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-820, Korea.
- Department of Life Science, Dongguk University Biomedi Campus 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-820, Korea.
| | - Preeyaporn Koedrith
- Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-820, Korea.
- Faculty of Environment and Resource Studies, Mahidol University, 999 Phuttamonthon 4 Rd., Phuttamonthon District, Nakhon Pathom 73170, Thailand.
| | - Young Rok Seo
- Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-820, Korea.
- Department of Life Science, Dongguk University Biomedi Campus 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-820, Korea.
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Yang O, Kim HL, Weon JI, Seo YR. Endocrine-disrupting Chemicals: Review of Toxicological Mechanisms Using Molecular Pathway Analysis. J Cancer Prev 2015; 20:12-24. [PMID: 25853100 PMCID: PMC4384711 DOI: 10.15430/jcp.2015.20.1.12] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [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: 02/18/2015] [Accepted: 03/14/2015] [Indexed: 01/12/2023] Open
Abstract
Endocrine disruptors are known to cause harmful effects to human through various exposure routes. These chemicals mainly appear to interfere with the endocrine or hormone systems. As importantly, numerous studies have demonstrated that the accumulation of endocrine disruptors can induce fatal disorders including obesity and cancer. Using diverse biological tools, the potential molecular mechanisms related with these diseases by exposure of endocrine disruptors. Recently, pathway analysis, a bioinformatics tool, is being widely used to predict the potential mechanism or biological network of certain chemicals. In this review, we initially summarize the major molecular mechanisms involved in the induction of the above mentioned diseases by endocrine disruptors. Additionally, we provide the potential markers and signaling mechanisms discovered via pathway analysis under exposure to representative endocrine disruptors, bisphenol, diethylhexylphthalate, and nonylphenol. The review emphasizes the importance of pathway analysis using bioinformatics to finding the specific mechanisms of toxic chemicals, including endocrine disruptors.
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Affiliation(s)
- Oneyeol Yang
- Department of Life Science, College of Life Sciences and Biotechnology, Dongguk University Biomedi Campus, Goyang ; Institute of Environmental Medicine, Dongguk University Biomedi Campus, Seoul
| | - Hye Lim Kim
- Department of Life Science, College of Life Sciences and Biotechnology, Dongguk University Biomedi Campus, Goyang ; Institute of Environmental Medicine, Dongguk University Biomedi Campus, Seoul
| | - Jong-Il Weon
- Institute of Environmental Medicine, Dongguk University Biomedi Campus, Seoul ; Department of Safety Engineering, Dongguk University College of Natural Science, Gyeongju, Korea
| | - Young Rok Seo
- Department of Life Science, College of Life Sciences and Biotechnology, Dongguk University Biomedi Campus, Goyang ; Institute of Environmental Medicine, Dongguk University Biomedi Campus, Seoul
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Kim YR, Lee EJ, Park SH, Kwon HJ, An SSA, Son SW, Seo YR, Pie JE, Yoon M, Kim JH, Kim MK. Interactive survey of consumer awareness of nanotechnologies and nanoparticles in consumer products in South Korea. Int J Nanomedicine 2015; 9 Suppl 2:11-20. [PMID: 25565822 PMCID: PMC4279854 DOI: 10.2147/ijn.s57919] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The purpose of our study was to understand consumers' risk awareness and need for relevant information about nanotechnology and nanoparticles contained in products currently being sold in Korea. METHODS One thousand and seven adult consumers (aged 20-50 years) were randomly selected from all over South Korea between November 1 and 9, 2010. We surveyed the origin and degree of their concern and their need for information and education regarding nanomaterials. RESULTS Analysis of the survey results showed no significant differences in responses by sex, age, and level of education, but significant differences were found in responses based on average monthly household income. Our research showed that consumers have vague expectations for and positive image of nanotechnology and nanoproducts but do not clearly understand what they are. In addition, we found that preparing and disseminating information to consumers is required in order to provide correct information about nanotechnology to the public. CONCLUSION A communication system should be established among the multiple stakeholders involved with nanomaterials to address consumer expectations and concerns. Further, a safety evaluation system must be set up, the results of which should be processed by a reliable expert group so they can be disseminated to the public.
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Affiliation(s)
- Yu-Ri Kim
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, South Korea
| | - Eun Jeong Lee
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, South Korea
| | - Sung Ha Park
- Department of Biochemistry, University of Bath, Bath, UK
| | - Hyo Jin Kwon
- Department of Medical Education, Korea University Medical School and College, Seoul, South Korea
| | - Seong Soo A An
- Department of Bionanotechnology, Gachon University, Seongnam, South Korea
| | - Sang Wook Son
- Department of Dermatology, Korea University Medical School and College
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul, South Korea
| | - Jae-Eun Pie
- Department of Food and Nutrition, College of Science and Engineering, Anyang University, Anyang, Korea
| | | | | | - Meyoung-Kon Kim
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, South Korea
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Kwon JY, Kim HL, Lee JY, Ju YH, Kim JS, Kang SH, Kim YR, Lee JK, Jeong J, Kim MK, Maeng EH, Seo YR. Undetactable levels of genotoxicity of SiO2 nanoparticles in in vitro and in vivo tests. Int J Nanomedicine 2014; 9 Suppl 2:173-81. [PMID: 25565835 PMCID: PMC4279720 DOI: 10.2147/ijn.s57933] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [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] [Indexed: 11/23/2022] Open
Abstract
Background Silica dioxide (SiO2) has been used in various industrial products, including paints and coatings, plastics, synthetic rubbers, and adhesives. Several studies have investigated the genotoxic effects of SiO2; however, the results remain controversial due to variations in the evaluation methods applied in determining its physicochemical properties. Thus, well characterized chemicals and standardized methods are needed for better assessment of the genotoxicity of nanoparticles. Methods The genotoxicity of SiO2 was evaluated using two types of well characterized SiO2, ie, 20 nm (−) charge (SiO EN20(−)2) and 100 nm (−) charge (SiO EN100(−)2). Four end point genotoxicity tests, ie, the bacterial mutation assay, in vitro chromosomal aberration test, in vivo comet assay, and in vivo micronucleus test, were conducted following the test guidelines of the Organization for Economic Cooperation and Development (OECD) with application of Good Laboratory Practice. Results No statistically significant differences were found in the bacterial mutation assay, in vitro chromosomal aberration test, in vivo comet assay, and in vivo micronucleus test when tested for induction of genotoxicity in both two types of SiO2 nanoparticles. Conclusion These results suggest that SiO2 nanoparticles, in particular SiO2EN20(−) and SiO2EN100(−), are not genotoxic in both in vitro and in vivo systems under OECD guidelines. Further, the results were generated in accordance with OECD test guidelines, and Good Laboratory Practice application; it can be accepted as reliable information regarding SiO2-induced genotoxicity.
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Affiliation(s)
- Jee Young Kwon
- Department of Life Science, Institute of Environmental Medicine, Dongguk University, Seoul, Republic of Korea
| | - Hye Lim Kim
- Department of Life Science, Institute of Environmental Medicine, Dongguk University, Seoul, Republic of Korea
| | - Jong Yun Lee
- Korea Testing and Research Institute, Korea University College of Medicine, Seoul, Republic of Korea
| | - Yo Han Ju
- Korea Testing and Research Institute, Korea University College of Medicine, Seoul, Republic of Korea
| | - Ji Soo Kim
- Korea Testing and Research Institute, Korea University College of Medicine, Seoul, Republic of Korea
| | - Seung Hun Kang
- Department of Life Science, Institute of Environmental Medicine, Dongguk University, Seoul, Republic of Korea
| | - Yu-Ri Kim
- Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jong-Kwon Lee
- Toxicological Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Chungcheongbuk-do, Republic of Korea
| | - Jayoung Jeong
- Toxicological Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Chungcheongbuk-do, Republic of Korea
| | - Meyoung-Kon Kim
- Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Republic of Korea
| | - Eun Ho Maeng
- Korea Testing and Research Institute, Korea University College of Medicine, Seoul, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University, Seoul, Republic of Korea
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Kim YR, Lee SY, Lee EJ, Park SH, Seong NW, Seo HS, Shin SS, Kim SJ, Meang EH, Park MK, Kim MS, Kim CS, Kim SK, Son SW, Seo YR, Kang BH, Han BS, An SSA, Lee BJ, Kim MK. Toxicity of colloidal silica nanoparticles administered orally for 90 days in rats. Int J Nanomedicine 2014; 9 Suppl 2:67-78. [PMID: 25565827 PMCID: PMC4279771 DOI: 10.2147/ijn.s57925] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [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] [Indexed: 01/09/2023] Open
Abstract
This study was undertaken to investigate the potential toxicity and establish the no observed adverse effect level (NOAEL) and target organ(s) of negatively charged colloidal silica particles of different sizes, ie, SiO2EN20(−) (20 nm) or SiO2EN100(−) 2(100 nm), administered by gavage in Sprague-Dawley rats. After verification of the physicochemical properties of the SiO2 particles to be tested, a preliminary dose range-finding study and 90-day repeated dose study were conducted according to the Organisation for Economic Cooperation and Development test guideline. Based on the results of the 14-day dose range-finding study, a high dose was determined to be 2,000 mg/kg, and middle and low doses were set at 1,000 and 500 mg/kg, respectively. In the 90-day toxicity study, there were no animal deaths in relation to administration of SiO2 particles of either size. In addition, no treatment-related clinical changes or histopathological findings were observed in any of the experimental groups. Moreover, no difference in toxic effects from chronic exposure to SiO2EN20(−)(20 nm) or SiO2EN100(−) (100 nm) was observed. The results of this study indicate that the NOAEL for SiO2EN20(−) and SiO2EN100(−) would most likely be 2,000 mg/kg, and no target organ was identified in rats of either sex.
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Affiliation(s)
- Yu-Ri Kim
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, Republic of Korea
| | - Seung-Young Lee
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Republic of Korea
| | - Eun Jeong Lee
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, Republic of Korea
| | - Sung Ha Park
- Department of Biochemistry, University of Bath, Bath, UK
| | - Nak-won Seong
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Republic of Korea
| | - Heung-Sik Seo
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Republic of Korea
| | - Sung-Sup Shin
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Republic of Korea
| | - Seon-Ju Kim
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Republic of Korea
| | - Eun-Ho Meang
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Republic of Korea
| | - Myeong-Kyu Park
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Republic of Korea
| | - Min-Seok Kim
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Republic of Korea
| | - Cheol-Su Kim
- Department of Microbiology, Wonju College of Medicine, Yonsei University, Gangwon, Republic of Korea
| | - Soo-Ki Kim
- Department of Microbiology, Wonju College of Medicine, Yonsei University, Gangwon, Republic of Korea
| | - Sang Wook Son
- Department of Dermatology, Korea University Medical School and College, Seoul, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul, Republic of Korea
| | - Boo Hyon Kang
- Nonclinical Research Institute, Chemon Inc, Gyeonggi, Republic of Korea
| | - Beom Seok Han
- Toxicological Research Center, Hoseo University, Chungnam, Republic of Korea
| | - Seong Soo A An
- Department of Bionanotechnology, Gachon University, Gyeonggi, Republic of Korea
| | - Beom-Jun Lee
- College of Veterinary Medicine, Chungbuk National University, Chungbuk, Republic of Korea
| | - Meyoung-Kon Kim
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, Republic of Korea
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Kim YR, Park JI, Lee EJ, Park SH, Seong NW, Kim JH, Kim GY, Meang EH, Hong JS, Kim SH, Koh SB, Kim MS, Kim CS, Kim SK, Son SW, Seo YR, Kang BH, Han BS, An SSA, Yun HI, Kim MK. Toxicity of 100 nm zinc oxide nanoparticles: a report of 90-day repeated oral administration in Sprague Dawley rats. Int J Nanomedicine 2014; 9 Suppl 2:109-26. [PMID: 25565830 PMCID: PMC4279774 DOI: 10.2147/ijn.s57928] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [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] [Indexed: 11/30/2022] Open
Abstract
Nanoparticles (NPs) are used commercially in health and fitness fields, but information about the toxicity and mechanisms underlying the toxic effects of NPs is still very limited. The aim of this study is to investigate the toxic effect(s) of 100 nm negatively (ZnOAE100[−]) or positively (ZnOAE100[+]) charged zinc oxide (ZnO) NPs administered by gavage in Sprague Dawley rats, to establish a no observed adverse effect level, and to identify target organ(s). After verification of the primary particle size, morphology, hydrodynamic size, and zeta potential of each test article, we performed a 90-day study according to Organisation for Economic Co-operation and Development test guideline 408. For the 90-day study, the high dose was set at 500 mg/kg and the middle and low doses were set at 125 mg/kg and 31.25 mg/kg, respectively. Both ZnO NPs had significant changes in hematological and blood biochemical analysis, which could correlate with anemia-related parameters, in the 500 mg/kg groups of both sexes. Histopathological examination showed significant adverse effects (by both test articles) in the stomach, pancreas, eye, and prostate gland tissues, but the particle charge did not affect the tendency or the degree of the lesions. We speculate that this inflammatory damage might result from continuous irritation caused by both test articles. Therefore, the target organs for both ZnOAE100(−) and ZnOAE100(+) are considered to be the stomach, pancreas, eye, and prostate gland. Also, the no observed adverse effect level for both test articles was identified as 31.25 mg/kg for both sexes, because the adverse effects were observed at all doses greater than 125 mg/kg.
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Affiliation(s)
- Yu-Ri Kim
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, Korea
| | - Jong-Il Park
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Eun Jeong Lee
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, Korea
| | - Sung Ha Park
- Department of Biochemistry, University of Bath, Bath, UK
| | - Nak-won Seong
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Jun-Ho Kim
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Geon-Yong Kim
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Eun-Ho Meang
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Jeong-Sup Hong
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Su-Hyon Kim
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Sang-Bum Koh
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Min-Seok Kim
- General Toxicology Team, Korea Testing and Research Institute, Seoul, Korea
| | - Cheol-Su Kim
- Department of Microbiology, Wonju College of Medicine, Yonsei University, Wonju-si, Gangwon, Korea
| | - Soo-Ki Kim
- Department of Microbiology, Wonju College of Medicine, Yonsei University, Wonju-si, Gangwon, Korea
| | - Sang Wook Son
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul, Korea
| | - Young Rok Seo
- Nonclinical Research Institute, Chemon Inc., Yongin, Gyeonggi, Korea
| | - Boo Hyon Kang
- Toxicological Research Center, Hoseo University, Ansan, Chungnam, Korea
| | - Beom Seok Han
- Department of Bionanotechnology, Gachon University, Seongnam, Gyeonggi, Korea
| | - Seong Soo A An
- College of Veterinary Medicine, Chungnam National University, Daejon, Korea
| | - Hyo-In Yun
- College of Veterinary Medicine, Chungnam National University, Daejon, Korea
| | - Meyoung-Kon Kim
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, Korea
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Kim YR, Lee EJ, Park SH, Kwon HJ, An SSA, Son SW, Seo YR, Pie JE, Yoon M, Kim JH, Kim MK. Comparative analysis of nanotechnology awareness in consumers and experts in South Korea. Int J Nanomedicine 2014; 9 Suppl 2:21-7. [PMID: 25565823 PMCID: PMC4279757 DOI: 10.2147/ijn.s57921] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose This study examined the need for public communication about nanotechnologies and nanoparticles by providing a comparative analysis of the differences in risk awareness of nanotechnologies and nanoparticles between consumers and experts. Methods A total of 1,007 consumers and 150 experts participated in this study. A questionnaire was prepared examining their awareness of nanotechnologies and nanomaterials and their view of the necessity for information and education about the latest nanotechnologies and nanomaterials. Results Our results indicated that the expert group recognized that they knew more than consumers about nanotechnology and that there was a need for relevant education in nanotechnology and nanomaterials among consumers. We found that the consumer group had a more positive attitude toward nanotechnology, even though they did not know much about it. Moreover, the consumer group was inconclusive about the type of information on nanotechnology deemed necessary for the public, as well as the suitable party to be responsible for education and for delivering the information. Conclusion An education and promotion program targeting consumers should be established to overcome the differences between consumers and experts in their awareness of nanotechnology. Specifically, the establishment of concepts for nanomaterials or nanoproducts is required immediately. With clear standards on nanomaterials, consumers can make informed decisions in selecting nanoproducts in the market.
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Affiliation(s)
- Yu-Ri Kim
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, South Korea
| | - Eun Jeong Lee
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, South Korea
| | - Sung Ha Park
- Department of Biochemistry, University of Bath, Bath, UK
| | - Hyo Jin Kwon
- Department of Medical Education, Korea University Medical School and College, Seoul, South Korea
| | - Seong Soo A An
- Department of Bionanotechnology, Gachon University, Seongnam, Gyeonggi, South Korea
| | - Sang Wook Son
- Department of Dermatology, Korea University Medical School and College, Seoul, South Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul, South Korea
| | - Jae-Eun Pie
- Department of Food and Nutrition, College of Science and Engineering, Anyang University, Anyang, Gyeonggi, South Korea
| | | | | | - Meyoung-Kon Kim
- Department of Biochemistry and Molecular Biology, Korea University Medical School and College, Seoul, South Korea
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Kwon JY, Koedrith P, Seo YR. Current investigations into the genotoxicity of zinc oxide and silica nanoparticles in mammalian models in vitro and in vivo: carcinogenic/genotoxic potential, relevant mechanisms and biomarkers, artifacts, and limitations. Int J Nanomedicine 2014; 9 Suppl 2:271-86. [PMID: 25565845 PMCID: PMC4279763 DOI: 10.2147/ijn.s57918] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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] [Indexed: 12/12/2022] Open
Abstract
Engineered nanoparticles (NPs) are widely used in many sectors, such as food, medicine, military, and sport, but their unique characteristics may cause deleterious health effects. Close attention is being paid to metal NP genotoxicity; however, NP genotoxic/carcinogenic effects and the underlying mechanisms remain to be elucidated. In this review, we address some metal and metal oxide NPs of interest and current genotoxicity tests in vitro and in vivo. Metal NPs can cause DNA damage such as chromosomal aberrations, DNA strand breaks, oxidative DNA damage, and mutations. We also discuss several parameters that may affect genotoxic response, including physicochemical properties, widely used assays/end point tests, and experimental conditions. Although potential biomarkers of nanogenotoxicity or carcinogenicity are suggested, inconsistent findings in the literature render results inconclusive due to a variety of factors. Advantages and limitations related to different methods for investigating genotoxicity are described, and future directions and recommendations for better understanding genotoxic potential are addressed.
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Affiliation(s)
- Jee Young Kwon
- Department of Life Science, Institute of Environmental Medicine, Dongguk University, Seoul, Republic of Korea
| | - Preeyaporn Koedrith
- Faculty of Environment and Resource Studies, Mahidol University, Phuttamonthon District, NakhonPathom, Thailand
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University, Seoul, Republic of Korea
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Kang SH, Kwon JY, Lee JK, Seo YR. Recent advances in in vivo genotoxicity testing: prediction of carcinogenic potential using comet and micronucleus assay in animal models. J Cancer Prev 2014; 18:277-88. [PMID: 25337557 PMCID: PMC4189446 DOI: 10.15430/jcp.2013.18.4.277] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [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: 12/18/2013] [Revised: 12/19/2013] [Accepted: 12/19/2013] [Indexed: 11/23/2022] Open
Abstract
Genotoxic events have been known as crucial step in the initiation of cancer. To assess the risk of cancer, genotoxicity assays, including comet, micronucleus (MN), chromosomal aberration, bacterial reverse, and sister chromatid exchange assay, can be performed. Compared with in vitro genotoxicity assay, in vivo genotoxicity assay has been used to verify in vitro assay result and definitely provide biological significance for certain organs or cell types. The comet assay can detect DNA strand breaks as markers of genotoxicity. Methods of the in vivo comet assay have been established by Japanese Center for the Validation of Alternative Methods (JaCVAM) validation studies depending on tissue and sample types. The MN can be initiated by segregation error and lagging acentric chromosome fragment. Methods of the in vivo MN assay have been established by Organization for Economic Co-operation and Development (OECD) test guidelines and many studies. Combining the in vivo comet and MN assay has been regarded as useful methodology for evaluating genetic damage, and it has been used in the assessment of potential carcinogenicity by complementarily presenting two distinct endpoints of the in vivo genotoxicity individual test. Few studies have investigated the quantitative relation between in vivo genotoxicity results and carcinogenicity. Extensive studies emphasizes that positive correlation is detectable. This review summarizes the results of the in vivo comet and MN assays that have investigated the genotoxicity of carcinogens as classified by the International Agency for Research on Cancer (IARC) carcinogenicity database. As a result, these genotoxicity data may provide meaningful information for the assessment of potential carcinogenicity and for implementation in the prevention of cancer.
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Affiliation(s)
- Seung Hun Kang
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul
| | - Jee Young Kwon
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul
| | - Jong Kwon Lee
- Toxicological Research Division, National Institute of Food and Drug Safety Evaluation (NIFDS), Korea Food and Drug Administration (KFDA), Cheongwon, Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul
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Kim YJ, Kim JS, Seo YR, Park JHY, Choi MS, Sung MK. Carnosic acid suppresses colon tumor formation in association with antiadipogenic activity. Mol Nutr Food Res 2014; 58:2274-85. [DOI: 10.1002/mnfr.201400293] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 08/26/2014] [Accepted: 08/28/2014] [Indexed: 12/18/2022]
Affiliation(s)
- Yun-Ji Kim
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
| | - Jong-Sang Kim
- School of Food Science and Biotechnology; Kyungpook National University; Daegu Korea
| | - Young Rok Seo
- Department of Life Science; Institute of Environmental Medicine for Green Chemistry; Dongguk University; Seoul Korea
| | - Jung Han Yoon Park
- Department of Food Science and Nutrition; Hallym University; Chuncheon Korea
- Center for Food and Nutritional Genomics Research; Kyungpook National University; Daegu Korea
| | - Myung-Sook Choi
- Center for Food and Nutritional Genomics Research; Kyungpook National University; Daegu Korea
- Department of Food Science and Nutrition; Kyungpook National University; Daegu Korea
| | - Mi-Kyung Sung
- Department of Food and Nutrition; Sookmyung Women's University; Seoul Korea
- Center for Food and Nutritional Genomics Research; Kyungpook National University; Daegu Korea
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Kim HL, Koedrith P, Lee SM, Kim YJ, Seo YR. Abstract 2419: Protective role of thioredoxin-1 in base excision repair under redox modulation. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-2419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Thioredoxin-1 (Trx1) is an antioxidant enzyme with a protective role in the removal of reactive oxygen species (ROS). We investigated the mechanism by which the redox modulator Trx1 affects base excision repair (BER) activity to understand the protective role of Trx1. We constructed a Trx1 knockdown system to demonstrate the specific mechanism of Trx1. DNA damage in terms of relative intensity of the DNA tail and γ-H2AX foci was markedly higher in the Trx1 shRNA cells compared with that in the wild type cells, leading to increased cellular susceptibility to a sublethal dose of BER-inducible toxicant, nitrosomethylurea (NMU). In addition, we observed a modulatory role of Trx1 in the BER pathway via the p53 downstream gene, growth arrest, and DNA-damage-inducible protein 45 α (Gadd45a). The protein level and function of p53, a Trx1 downstream gene, coincidently decreased in the Trx1 shRNA cells. Furthermore, Trx1 shRNA cells showed decreased Gadd45a expression and interaction of Gadd45a with apurynic/apyrimidinic endonuclease 1 (APE1) as well as APE1 activity. In conclusion, Trx1 might cooperate in the control of APE1 function by modulating the p53-mediated BER via the protein-protein interaction between Gadd45a and APE1, providing insight into the novel role of redox factor Trx1 in modulation of BER.
Note: This abstract was not presented at the meeting.
Citation Format: Hye Lim Kim, Preeyaporn Koedrith, Sang Min Lee, Yeo Jin Kim, Young Rok Seo. Protective role of thioredoxin-1 in base excision repair under redox modulation. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 2419. doi:10.1158/1538-7445.AM2014-2419
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Affiliation(s)
- Hye Lim Kim
- 1Dongguk University, Seoul, Republic of Korea
| | | | | | - Yeo Jin Kim
- 1Dongguk University, Seoul, Republic of Korea
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Kwon JY, Lee SY, Koedrith P, Lee JY, Kim KM, Oh JM, Yang SI, Kim MK, Lee JK, Jeong J, Maeng EH, Lee BJ, Seo YR. Lack of genotoxic potential of ZnO nanoparticles in in vitro and in vivo tests. Mutat Res Genet Toxicol Environ Mutagen 2014; 761:1-9. [PMID: 24462964 DOI: 10.1016/j.mrgentox.2014.01.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 01/08/2014] [Accepted: 01/12/2014] [Indexed: 11/25/2022]
Abstract
The industrial application of nanotechnology, particularly using zinc oxide (ZnO), has grown rapidly, including products such as cosmetics, food, rubber, paints, and plastics. However, despite increasing population exposure to ZnO, its potential genotoxicity remains controversial. The biological effects of nanoparticles depend on their physicochemical properties. Preparations with well-defined physico-chemical properties and standardized test methods are required for assessing the genotoxicity of nanoparticles. In this study, we have evaluated the genotoxicity of four kinds of ZnO nanoparticles: 20nm and 70nm size, positively or negatively charged. Four different genotoxicity tests (bacterial mutagenicity assay, in vitro chromosomal aberration test, in vivo comet assay, and in vivo micronucleus test, were conducted, following Organization for Economic Cooperation and Development (OECD) test guidelines with good laboratory practice (GLP) procedures. No statistically significant differences from the solvent controls were observed. These results suggest that surface-modified ZnO nanoparticles do not induce genotoxicity in in vitro or in vivo test systems.
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Affiliation(s)
- Jee Young Kwon
- Department of Life Science, Institute of Environmental Medicine, Dongguk University, Seoul, South Korea; Department of Biomedical Science, School of Medicine, Kyung Hee University, Seoul, South Korea
| | - Seung Young Lee
- Korea Testing and Research Institute, Seoul, South Korea; College of Veterinary Medicine Chungbuk National University, Cheongju, Chungcheongbuk-do, South Korea
| | - Preeyaporn Koedrith
- Faculty of Environment and Resource Studies, Mahidol University, Phuttamonthon District, NakhonPathom 73170, Thailand
| | - Jong Yun Lee
- Korea Testing and Research Institute, Seoul, South Korea
| | - Kyoung-Min Kim
- Department of Chemistry and Medical Chemistry, College of Science and Technology, Yonsei University, Wonju, Gangwondo, South Korea
| | - Jae-Min Oh
- Department of Chemistry and Medical Chemistry, College of Science and Technology, Yonsei University, Wonju, Gangwondo, South Korea
| | - Sung Ik Yang
- Department of Applied Chemistry, Kyung Hee University, Yongin, South Korea
| | - Meyoung-Kon Kim
- Department of Biochemistry & Molecular Biology, Korea University College of Medicine, Seoul, South Korea
| | - Jong Kwon Lee
- Toxicological Research Division, National Institute of Food and Drug Safety Evaluation (NIFDS), Ministry of Food and Drug Safety (MFDS), Chungcheongbuk-do, South Korea
| | - Jayoung Jeong
- Toxicological Research Division, National Institute of Food and Drug Safety Evaluation (NIFDS), Ministry of Food and Drug Safety (MFDS), Chungcheongbuk-do, South Korea
| | - Eun Ho Maeng
- Korea Testing and Research Institute, Seoul, South Korea
| | - Beam Jun Lee
- College of Veterinary Medicine Chungbuk National University, Cheongju, Chungcheongbuk-do, South Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine, Dongguk University, Seoul, South Korea.
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Song JJ, Kwon JY, Park MK, Seo YR. Microarray analysis of gene expression alteration in human middle ear epithelial cells induced by micro particle. Int J Pediatr Otorhinolaryngol 2013; 77:1760-4. [PMID: 24012219 DOI: 10.1016/j.ijporl.2013.08.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 08/09/2013] [Accepted: 08/09/2013] [Indexed: 01/01/2023]
Abstract
OBJECTIVES The primary aim of this study is to reveal the effect of particulate matter (PM) on the human middle ear epithelial cell (HMEEC). METHODS The HMEEC was treated with PM (300 μg/ml) for 24 h. Total RNA was extracted and used for microarray analysis. Molecular pathways among differentially expressed genes were further analyzed by using Pathway Studio 9.0 software. For selected genes, the changes in gene expression were confirmed by real-time PCR. RESULTS A total of 611 genes were regulated by PM. Among them, 366 genes were up-regulated, whereas 245 genes were down-regulated. Up-regulated genes were mainly involved in cellular processes, including reactive oxygen species generation, cell proliferation, apoptosis, cell differentiation, inflammatory response and immune response. Down-regulated genes affected several cellular processes, including cell differentiation, cell cycle, proliferation, apoptosis and cell migration. A total of 21 genes were discovered as crucial components in potential signaling networks containing 2-fold up regulated genes. Four genes, VEGFA, IL1B, CSF2 and HMOX1 were revealed as key mediator genes among the up-regulated genes. A total of 25 genes were revealed as key modulators in the signaling pathway associated with 2-fold down regulated genes. Four genes, including IGF1R, TIMP1, IL6 and FN1, were identified as the main modulator genes. CONCLUSIONS We identified the differentially expressed genes in PM-treated HMEEC, whose expression profile may provide a useful clue for the understanding of environmental pathophysiology of otitis media. Our work indicates that air pollution, like PM, plays an important role in the pathogenesis of otitis media.
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Affiliation(s)
- Jae-Jun Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Dongguk University Ilsan Hospital, Goyang, Gyeonggi, Republic of Korea
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Jung HJ, Kim HL, Seo YR. Enhanced redox factor 1 (REF1)-modulated p53 stabilization and JNK1 dissociation in response to selenomethionine. Anticancer Res 2013; 33:3645-3651. [PMID: 24023291] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
AIM p53 is reportedly activated without any genotoxicity through redox modulation of redox factor 1 (REF1). REF1 is documented to modulate the redox status under selenomethionine (SeMet). In this study, we investigated the mechanism of p53 stabilization by SeMet. MATERIALS AND METHODS We mainly used ubiquitination assay and immunoprecipitation to determine the potential role of REF1 and c-jun N-terminal kinase 1 (JNK) in modulation of p53 stabilization by SeMet. RESULTS The amount of ubiquitinated p53 decreased significantly under SeMet treatment, suggesting that SeMet might inhibit the proteasome-dependent degradation of p53. In addition, we observed that JNK was considerably associated with p53 in REF1 siRNA-treated cells, implying a possible role for SeMet-induced REF1 activity in modulation of the interaction between JNK and p53 via changes in p53 redox status. CONCLUSION Our results suggest that the alternate mechanism of p53 stabilization by SeMet might provide an important clue in elucidating the molecular mechanism of chemopreventative compounds against various oxidative stresses.
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Affiliation(s)
- Hwa Jin Jung
- Department of Life Science, Dongguk University, 30 Pildong-ro 1-gil, Jung-gu, Seoul 100-715, Republic of Korea,
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Jung HJ, Kim HL, Kim YJ, Weon JI, Seo YR. A novel chemopreventive mechanism of selenomethionine: enhancement of APE1 enzyme activity via a Gadd45a, PCNA and APE1 protein complex that regulates p53-mediated base excision repair. Oncol Rep 2013; 30:1581-6. [PMID: 23846616 PMCID: PMC3810451 DOI: 10.3892/or.2013.2613] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 06/18/2013] [Indexed: 11/25/2022] Open
Abstract
Organic selenium compounds have been documented to play a role in cancer prevention. Our previous study showed that selenomethionine (SeMet) induces p53 activation without genotoxic effects including apoptosis and cell cycle arrest. In this study, we investigated the mechanism by which organic selenium compounds promote p53-mediated base excision repair (BER) activity. Our data demonstrated for the first time that the interaction between growth arrest and DNA damage-inducible protein 45A (Gadd45a), which is a p53-activated downstream gene, and two BER-mediated repair proteins, proliferating cell nuclear antigen (PCNA) and apurinic/apyrimidinic endonuclease (APE1/Ref-1), was significantly increased in a p53-dependent manner following treatment with organic selenium compounds. Furthermore, we observed that the activity of APE1 was significantly increased in a p53-dependent manner in response to the organic selenium compounds. These results suggest that BER activity is dependent on wild-type p53 activity and is mediated by the modulation of protein interactions between Gadd45a and repair proteins in response to organic selenium compounds. We propose that p53-dependent BER activity is a distinct chemopreventive mechanism mediated by organic selenium compounds, and that this may provide insight into the development of effective chemopreventive strategies against various oxidative stresses that contribute to a variety of human diseases, particularly cancer.
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Affiliation(s)
- Hwa Jin Jung
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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Kwon JY, Weon JI, Koedrith P, Park KS, Kim IS, Seo YR. Identification of molecular candidates and interaction networks via integrative toxicogenomic analysis in a human cell line following low-dose exposure to the carcinogenic metals cadmium and nickel. Oncol Rep 2013; 30:1185-94. [PMID: 23828170 DOI: 10.3892/or.2013.2587] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 05/16/2013] [Indexed: 11/05/2022] Open
Abstract
Cadmium and nickel have been classified as carcinogenic to humans by the World Health Organization's International Agency for Research on Cancer. Given their prevalence in the environment, the fact that cadmium and nickel may cause diseases including cancer even at low doses is a cause for concern. However, the exact mechanisms underlying the toxicological effects induced by low-dose exposure to cadmium and nickel remain to be elucidated. Furthermore, it has recently been recognized that integrative analysis of DNA, mRNA and proteins is required to discover biomarkers and signaling networks relevant to human toxicant exposure. In the present study, we examined the deleterious effects of chronic low-dose exposure of either cadmium or nickel on global profiling of DNA copy number variation, mRNA and proteins. Array comparative genomic hybridization, gene expression microarray and functional proteomics were conducted, and a bioinformatics tool, which predicted signaling pathways, was applied to integrate data for each heavy metal separately and together. We found distinctive signaling networks associated with subchronic low-dose exposure to cadmium and nickel, and identified pathways common to both. ACTB, HSP90AA1, HSPA5 and HSPA8, which are key mediators of pathways related to apoptosis, proliferation and neoplastic processes, were key mediators of the same pathways in low-dose nickel and cadmium exposure in particular. CASP-associated signaling pathways involving CASP3, CASP7 and CASP9 were observed in cadmium-exposed cells. We found that HSP90AA1, one of the main modulators, interacted with HIF1A, AR and BCL2 in nickel-exposed cells. Interestingly, we found that HSP90AA1 was involved in the BCL2-associated apoptotic pathway in the nickel-only data, whereas this gene interacted with several genes functioning in CASP-associated apoptotic signaling in the cadmium-only data. Additionally, JUN and FASN were main modulators in nickel-responsive signaling pathways. Our results provide valuable biomarkers and distinctive signaling networks that responded to subchronic low-dose exposure to cadmium and nickel.
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Affiliation(s)
- Jee Young Kwon
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul 100-715, Republic of Korea
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Kim HL, Kim SU, Seo YR. A novel role for Gadd45α in base excision repair: Modulation of APE1 activity by the direct interaction of Gadd45α with PCNA. Biochem Biophys Res Commun 2013; 434:185-90. [DOI: 10.1016/j.bbrc.2013.02.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 02/17/2013] [Indexed: 02/07/2023]
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Rahman MM, Kwon JY, Seo YR. Abstract 4861: Identification of novel potential targets for selenomethionine-mediated chemoprevention in colorectal carcinoma mouse model via proteomics analysis. Cancer Res 2013. [DOI: 10.1158/1538-7445.am2013-4861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Despite some controversy, selenomethionine (SeMet) mediated protection against colorectal carcinoma (CRC) might be a very promising non-cytotoxic option. However, responsive molecular targets and underlying mechanisms of SeMet mediated chemoprevention are still unclear. Our aim was to discover new targets of SeMet mediated chemoprevention in CRC using proteomics analysis. We found dietary SeMet supplementation before carcinoma initiation effectively suppressed polyp incidence and dysplastic lesions without any adverse effects. To determine chemopreventive targets of SeMet, we employed 2-dimensional gel electrophoresis based proteomics analysis in CRC mouse model. Pretreatment with SeMet apparently modulated the expression of 30 proteins with functions in major processes like chronic inflammation, oxidative-stress and apoptosis as discovered through pathway analysis with Pathway studio software.We validated four proteins selected from pathway analysis including prohibitin, purine nucleoside phosphorylase, annexin 2 and c-reactive protein by immuno-histochemistry. 8-hydroxy-2′-deoxyguanosine (8-OHdG), a known oxidative stress marker was decreased by SeMet treatment in CRC mice as seen by immunohistochemistry. Further network analysis was done among these new four validated proteins, 8-OHdG and colorectal cancer. These four proteins found by proteomics analysis might be considered as potential chemopreventive biomarkers of SeMet against colon cancer and can help develop and improve approaches in preventive, therapeutic and prognostic aspects.
Citation Format: Md. Mujibur Rahman, Jee Young Kwon, Young Rok Seo. Identification of novel potential targets for selenomethionine-mediated chemoprevention in colorectal carcinoma mouse model via proteomics analysis. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 4861. doi:10.1158/1538-7445.AM2013-4861
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Affiliation(s)
- Md. Mujibur Rahman
- 1Department of Pathology, Colloge of Medicine, Korea University Hospital, Seoul, Republic of Korea
| | - Jee Young Kwon
- 2Department of Biomedical Science, Kyung Hee University, Seoul, Republic of Korea
| | - Young Rok Seo
- 3Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Seoul, Republic of Korea
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Rahman MM, Seo YR. Discovery of potential targets of selenomethionine-mediated chemoprevention in colorectal carcinoma mouse model using proteomics analysis. Carcinogenesis 2013; 34:1575-84. [PMID: 23504501 DOI: 10.1093/carcin/bgt078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Despite some controversy, selenomethionine (SeMet)-mediated protection against colorectal cancer (CRC) might be a very promising non-cytotoxic option. However, responsive molecular targets and underlying mechanisms of SeMet-mediated chemoprevention are still unclear. Our aim was to discover new targets of SeMet-mediated chemoprevention in CRC using proteomics analysis. We found dietary SeMet supplementation before carcinoma initiation effectively suppressed polyp incidence and dysplastic lesions without any adverse effects. To determine chemopreventive targets of SeMet, we employed two-dimensional gel electrophoresis-based proteomics analysis in CRC mouse model. Pretreatment with SeMet apparently modulated the expression of 30 proteins with functions in major processes like chronic inflammation, oxidative stress and apoptosis as discovered through pathway analysis with Pathway Studio software. We validated four proteins selected from pathway analysis including prohibitin, purine nucleoside phosphorylase, annexin 2 and c-reactive protein by immunohistochemistry. 8-Hydroxy-2'-deoxyguanosine (8-OHdG), a known oxidative stress marker, was decreased by SeMet treatment in CRC mice as seen by immunohistochemistry. Further network analysis was done among these new four validated proteins, 8-OHdG and colorectal cancer. These four proteins found by proteomics analysis might be considered as potential chemopreventive biomarkers of SeMet against colon cancer and can help develop and improve approaches in preventive, therapeutic and prognostic aspects.
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Affiliation(s)
- Md Mujibur Rahman
- Department of Life Science, Dongguk University-Seoul, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, Republic of Korea
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