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Lee W, Ku SK, Kim JE, Cho SH, Song GY, Bae JS. Inhibitory effects of protopanaxatriol type ginsenoside fraction (Rgx365) on particulate matter-induced pulmonary injury. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:338-350. [PMID: 30917762 DOI: 10.1080/15287394.2019.1596183] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inhalation of fine particulate matter (PM2.5) is associated with elevated pulmonary injury attributed to the loss of vascular barrier integrity. Black ginseng (BG), steamed 9 times and dried ginseng, and its major protopanaxatriol type ginsenosides (ginsenoside Rg4, Rg6, Rh4, Rh1, and Rg2) exhibited various biological activities including anti-septic, anti-diabetic, wound healing, immune-stimulatory, and anti-antioxidant activity. The aim of this study was to investigate the beneficial effects of Rgx365 (a protopanaxatriol type rare ginsenosides fraction) on PM-induced lung endothelial cell (EC) barrier disruption and pulmonary inflammation. Permeability, leukocyte migration, activation of proinflammatory proteins, generation of reactive oxygen species (ROS), and histology were examined in PM2.5-treated EC and mice. Rgx365 significantly scavenged PM2.5-induced ROS, inhibited ROS-induced activation of p38 mitogen-activated protein kinase (MAPK), activated Akt in purified pulmonary EC, which helped maintain endothelial integrity. Further, Rgx365 reduced vascular protein leakage, leukocyte infiltration, and proinflammatory cytokine release in bronchoalveolar lavage fluids in PM-induced mouse lung tissues. Data suggested that Rgx365 might exhibit protective effects in PM-induced inflammatory lung injury and vascular hyperpermeability.
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Affiliation(s)
- Wonhwa Lee
- a Aging Research Center , Korea Research Institute of Bioscience and Biotechnology (KRIBB) , Deajeon , Republic of Korea
- b College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team , Kyungpook National University , Daegu , Republic of Korea
| | - Sae-Kwang Ku
- c Department of Histology and Anatomy , College of Korean Medicine, Daegu Haany University , Gyeongsan-si , Republic of Korea
| | - Ji-Eun Kim
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Soo-Hyun Cho
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Gyu-Yong Song
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Jong-Sup Bae
- b College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team , Kyungpook National University , Daegu , Republic of Korea
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Li Q, Dong Z, Lian W, Cui J, Wang J, Shen H, Liu W, Yang J, Zhang X, Cui H. Ochratoxin A causes mitochondrial dysfunction, apoptotic and autophagic cell death and also induces mitochondrial biogenesis in human gastric epithelium cells. Arch Toxicol 2019; 93:1141-1155. [PMID: 30903243 DOI: 10.1007/s00204-019-02433-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 03/14/2019] [Indexed: 01/23/2023]
Abstract
Ochratoxin A (OTA) is a common natural contaminant found in human and animal food worldwide. Our previous work has shown that OTA can cause oxidative DNA damage, G2 arrest and malignant transformation of human gastric epithelium (GES-1) cells. Mitochondria are considered to be target for the action of many cytotoxic agents. However, the role of mitochondria in the cytotoxicity of OTA remains unknown. The aim of this study is to explore the putative role of mitochondria on OTA cytotoxicity by analyzing mitochondrial changes in GES-1 cells. The results showed that OTA treatment (5, 10, 20 µM) for different times caused increases in the production of reactive oxygen species, and induced mitochondrial damage, shown by loss of mitochondrial membrane potential (ΔΨM), and decrease in cellular ATP concentration. Subsequently, the mitochondrial apoptotic pathway was activated, presented by increase of apoptotic rate and activation of apoptotic proteins. Autophagic cell death was also triggered, demonstrated by the conversion of light chain 3B (LC3B)-I to LC3B-II and elevated levels of green fluorescent protein-LC3 (GFP-LC3) puncta. Moreover, Parkin-dependent mitophagy was also activated presented by the colocalization of MitoTracker with LysoTracker or GFP-LC3 puncta. The inhibition of autophagy and mitophagy by inhibitors or siRNA attenuated the toxic effect of OTA on cell growth. Interestingly, OTA treatment also enhanced mitochondrial biogenesis confirmed by activation of AMPK/PGC-1α/TFAM pathway and promoted cell survival. Collectively, the effects of OTA on mitochondria of GES-1 cells are complex. OTA could cause mitochondrial function disturbance, apoptotic and autophagic cell death and also induce mitochondrial biogenesis.
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Affiliation(s)
- Qian Li
- Laboratory of Pathology, Hebei Medical University, No. 361, Zhongshan Eastern Road, Shijiazhuang, Hebei Province, People's Republic of China.,Department of Dermatology, The Third Hospital of Hebei Medical University, No. 139, Ziqiang Road, Shijiazhuang, Hebei Province, People's Republic of China
| | - Zhen Dong
- State Key Laboratory of Silkworm Biology, Southwest University, No. 2, Tiansheng Road, Beibei District, Chongqing City, People's Republic of China
| | - Weiguang Lian
- Laboratory of Pathology, Hebei Medical University, No. 361, Zhongshan Eastern Road, Shijiazhuang, Hebei Province, People's Republic of China
| | - Jinfeng Cui
- Laboratory of Pathology, Hebei Medical University, No. 361, Zhongshan Eastern Road, Shijiazhuang, Hebei Province, People's Republic of China
| | - Juan Wang
- Laboratory of Pathology, Hebei Medical University, No. 361, Zhongshan Eastern Road, Shijiazhuang, Hebei Province, People's Republic of China
| | - Haitao Shen
- Laboratory of Pathology, Hebei Medical University, No. 361, Zhongshan Eastern Road, Shijiazhuang, Hebei Province, People's Republic of China
| | - Wenjing Liu
- Laboratory of Pathology, Hebei Medical University, No. 361, Zhongshan Eastern Road, Shijiazhuang, Hebei Province, People's Republic of China
| | - Jie Yang
- State Key Laboratory of Silkworm Biology, Southwest University, No. 2, Tiansheng Road, Beibei District, Chongqing City, People's Republic of China
| | - Xianghong Zhang
- Laboratory of Pathology, Hebei Medical University, No. 361, Zhongshan Eastern Road, Shijiazhuang, Hebei Province, People's Republic of China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Biology, Southwest University, No. 2, Tiansheng Road, Beibei District, Chongqing City, People's Republic of China.
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Zhao YX, Zhang HR, Yang XN, Zhang YH, Feng S, Yu FX, Yan XX. Fine Particulate Matter-Induced Exacerbation of Allergic Asthma via Activation of T-cell Immunoglobulin and Mucin Domain 1. Chin Med J (Engl) 2019; 131:2461-2473. [PMID: 30334531 PMCID: PMC6202600 DOI: 10.4103/0366-6999.243551] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Fine particulate matter (PM2.5) exacerbates airway inflammation and hyperreactivity in patients with asthma, but the mechanism remains unclear. The aim of this study was to observe the effects of prolonged exposure to high concentrations of PM2.5 on the pathology and airway hyperresponsiveness (AHR) of BALB/c mice undergoing sensitization and challenge with ovalbumin (OVA) and to observe the effects of apoptosis and T-cell immunoglobulin and mucin domain 1 (TIM-1) in this process. Methods: Forty female BALB/c mice were divided into four groups: control group, OVA group, OVA/PM group, and PM group (n = 10 in each group). Mice in the control group were exposed to filtered clean air. Mice in the OVA group were sensitized and challenged with OVA. Mice in the OVA/PM group were sensitized and challenged as in the OVA group and then exposed to PM2.5 for 4 h per day and 5 days per week for a total of 8 weeks using a nose-only “PM2.5 online enrichment system” in The Second Hospital of Hebei Medical University. Mice in the PM group were exposed to the PM2.5 online enrichment system only. AHR was detected. Bronchoalveolar lavage fluid (BALF) was collected for cell classification. The levels of interleukin-4 (IL-4), IL-5, and IL-33 in BALF were measured using enzyme-linked immunosorbent assay. Changes in histological structures were examined by light microscopy, and changes in ultramicrostructures were detected by electron microscopy. Apoptosis was determined by terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assay in the lung tissues. Western blotting and immunohistochemistry were utilized to analyze the expression of Bcl-2, Bax, and TIM-1 in the lungs. Results: The results showed that AHR in the OVA/PM group was significantly more severe than that in the OVA and PM groups (P < 0.05). AHR in the PM group was also considerably more severe than that in the control group (P < 0.05). The BALF of OVA/PM group (28.00 ± 6.08 vs. 12.33 ± 4.51, t = 4.631, P = 0.002) and PM group (29.00 ± 3.00 vs. 12.33 ± 4.51, t = 4.927, P = 0.001) had more lymphocytes than the BALF of the control group. The number of neutrophils in the BALF of the OVA/PM group (6.67 ± 1.53 vs. 3.33 ± 1.53, t = 2.886, P = 0.020) and PM group (6.67 ± 1.53 vs. 3.33 ± 1.53, t = 2.886, P = 0.020) was much higher than those in the BALF of OVA group (P < 0.05). TUNEL assays showed that the number of apoptotic cells in the OVA/PM group was significantly higher than that in the OVA group (Tunel immunohistochemical scores [IHS%], 1.20 ± 0.18 vs. 0.51 ± 0.03, t = 8.094, P < 0.001) and PM group (Tunel IHS%, 1.20 ± 0.18 vs. 0.51 ± 0.09, t = 8.094, P < 0.001), and that the number of apoptotic cells in the PM group was significantly higher than that in the control group (Tunel IHS%, 0.51 ± 0.09 vs. 0.26 ± 0.03, t = 2.894, P = 0.020). The concentrations of IL-4 (77.44 ± 11.19 vs. 48.02 ± 10.02 pg/ml, t = 4.595, P = 0.002) and IL-5 (15.65 ± 1.19 vs. 12.35 ± 0.95 pg/ml, t = 3.806, P = 0.005) and the Bax/Bcl-2 ratio (1.51 ± 0.18 vs. 0.48 ± 0.10, t = 9.654, P < 0.001) and TIM-1/β-actin ratio (0.78 ± 0.11 vs. 0.40 ± 0.06, t = 6.818, P < 0.001) in the OVA/PM group were increased compared to those in the OVA group. The concentrations of IL-4 (77.44 ± 11.19 vs. 41.47 ± 3.40 pg/ml, t = 5.617, P = 0.001) and IL-5 (15.65 ± 1.19 vs. 10.99 ± 1.40 pg/ml, t = 5.374, P = 0.001) and the Bax/Bcl-2 ratio (1.51 ± 0.18 vs. 0.97 ± 0.16, t = 5.000, P = 0.001) and TIM-1/β-actin ratio (0.78 ± 0.11 vs. 0.31 ± 0.06, t = 8.545, P < 0.001) in the OVA/PM group were increased compared to those in the PM group. The concentration of IL-4 (41.47 ± 3.40 vs. 25.46 ± 2.98 pg/ml, t = 2.501, P = 0.037) and the Bax/Bcl-2 ratio (0.97 ± 0.16 vs. 0.18 ± 0.03, t = 7.439, P < 0.001) and TIM-1/β-actin ratio (0.31 ± 0.06 vs. 0.02 ± 0.01, t = 5.109, P = 0.001) in the PM group were also higher than those in the control group. Conclusions: Exacerbated AHR associated with allergic asthma caused by PM2.5 is related to increased apoptosis and TIM-1 activation. These data might provide insights into therapeutic targets for the treatment of acute exacerbations of asthma induced by PM2.5.
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Affiliation(s)
- Yun-Xia Zhao
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000; Department of Respiratory Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, China
| | - Hui-Ran Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Xiu-Na Yang
- Department of Respiratory Medicine, The Third Hospital of Shijiazhuang, Shijiazhuang, Hebei 050000, China
| | - Yu-Hao Zhang
- Department of Emergency, Jinzhou General Hospital, Hebei 052260, China
| | - Shan Feng
- Department of Internal Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, China
| | - Feng-Xue Yu
- Department of Central Laboratory, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Xi-Xin Yan
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
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204
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Diphlorethohydroxycarmalol Attenuates Fine Particulate Matter-Induced Subcellular Skin Dysfunction. Mar Drugs 2019; 17:md17020095. [PMID: 30717280 PMCID: PMC6410332 DOI: 10.3390/md17020095] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/16/2019] [Accepted: 01/26/2019] [Indexed: 12/12/2022] Open
Abstract
The skin, the largest organ in humans, is exposed to major sources of outdoor air pollution, such as fine particulate matter with a diameter ≤ 2.5 µm (PM2.5). Diphlorethohydroxycarmalol (DPHC), a marine-based compound, possesses multiple activities including antioxidant effect. In the present study, we evaluated the protective effect of DPHC on PM2.5-induced skin cell damage and elucidated the underlying mechanisms in vitro and in vivo. The results showed that DPHC blocked PM2.5-induced reactive oxygen species generation in human keratinocytes. In addition, DPHC protected cells against PM2.5-induced DNA damage, endoplasmic reticulum stress, and autophagy. HR-1 hairless mice exposed to PM2.5 showed lipid peroxidation, protein carbonylation, and increased epidermal height, which were inhibited by DPHC. Moreover, PM2.5 induced apoptosis and mitogen-activated protein kinase (MAPK) protein expression; however, these changes were attenuated by DPHC. MAPK inhibitors were used to elucidate the molecular mechanisms underlying these actions, and the results demonstrated that MAPK signaling pathway may play a key role in PM2.5-induced skin damage.
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205
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Ryu YS, Kang KA, Piao MJ, Ahn MJ, Yi JM, Hyun YM, Kim SH, Ko MK, Park CO, Hyun JW. Particulate matter induces inflammatory cytokine production via activation of NFκB by TLR5-NOX4-ROS signaling in human skin keratinocyte and mouse skin. Redox Biol 2019; 21:101080. [PMID: 30584981 PMCID: PMC6305701 DOI: 10.1016/j.redox.2018.101080] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 12/10/2018] [Accepted: 12/13/2018] [Indexed: 01/17/2023] Open
Abstract
Particulate matter (PM) increases levels of pro-inflammatory cytokines, but its effects on the skin remain largely unknown. We investigated the signal transduction pathway and epigenetic regulatory mechanisms underlying cellular inflammation induced by PM with a diameter of ≤ 2.5 (PM2.5) in vitro and in vivo. PM2.5-treated skin keratinocytes produced various inflammatory cytokines, including IL-6. The binding of PM2.5 to TLR5 initiated intracellular signaling through MyD88, and led to the translocation of NFκB to the nucleus, where it bound the NFκB site within IL-6 promoter. Furthermore, PM2.5 induced a direct interaction between TLR5 and NOX4, and in turn induced the production of ROS and activated NFκB-IL-6 downstream, which was prevented by siRNA-mediated knockdown of NOX4 or antioxidant treatment. Furthermore, expression of TLR5, MyD88, NOX4, phospho-NFκB, and IL-6 was increased in skin tissue of PM2.5-treated flaky tail mice. PM2.5-induced increased transcription of IL-6 was regulated via DNA methylation and histone methylation by epigenetic modification; the binding of DNA demethylase and histone methyltransferase to the IL-6 promoter regions resulted in increased IL-6 mRNA expression. Our findings provide deep insight into the pathogenesis of PM2.5 exposure and can be used as a therapeutic strategy to treat inflammatory skin diseases caused by PM2.5 exposure.
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Affiliation(s)
- Yea Seong Ryu
- Department of Biochemistry, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Kyoung Ah Kang
- Department of Biochemistry, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Mei Jing Piao
- Department of Biochemistry, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Mee Jung Ahn
- Laboratory of Veterinary Anatomy, College of Veterinary Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Joo Mi Yi
- Department of Microbiology and Immunology, Inje University College of Medicine, Busan 47392, Republic of Korea
| | - Young-Min Hyun
- Department of Anatomy, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seo Hyeong Kim
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Min Kyung Ko
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Chang Ook Park
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jin Won Hyun
- Department of Biochemistry, Jeju National University School of Medicine, Jeju 63243, Republic of Korea.
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206
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Hyun YJ, Piao MJ, Kang KA, Zhen AX, Madushan Fernando PDS, Kang HK, Ahn YS, Hyun JW. Effect of Fermented Fish Oil on Fine Particulate Matter-Induced Skin Aging. Mar Drugs 2019; 17:md17010061. [PMID: 30669248 PMCID: PMC6356237 DOI: 10.3390/md17010061] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/10/2019] [Accepted: 01/14/2019] [Indexed: 12/21/2022] Open
Abstract
Skin is exposed to various harmful environmental factors such as air pollution, which includes different types of particulate matter (PM). Atmospheric PM has harmful effects on humans through increasing the generation of reactive oxygen species (ROS), which have been reported to promote skin aging via the induction of matrix metalloproteinases (MMPs), which in turn can cause the degradation of collagen. In this study, we investigated the effect of fermented fish oil (FFO) derived from mackerel on fine PM (particles with a diameter < 2.5 µm: PM2.5)-induced skin aging in human keratinocytes. We found that FFO inhibited the PM2.5-induced generation of intracellular ROS and MMPs, including MMP-1, MMP-2, and MMP-9. In addition, FFO significantly abrogated the elevation of intracellular Ca2+ levels in PM2.5-treated cells and was also found to block the PM2.5-induced mitogen-activated protein kinase/activator protein 1 (MAPK/AP-1) pathway. In conclusion, FFO has an anti-aging effect on PM2.5-induced aging in human keratinocytes.
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Affiliation(s)
- Yu Jae Hyun
- School of Medicine, Jeju National University, Jeju 63243, Korea.
| | - Mei Jing Piao
- School of Medicine, Jeju National University, Jeju 63243, Korea.
| | - Kyoung Ah Kang
- School of Medicine, Jeju National University, Jeju 63243, Korea.
| | - Ao Xuan Zhen
- School of Medicine, Jeju National University, Jeju 63243, Korea.
| | | | - Hee Kyoung Kang
- School of Medicine, Jeju National University, Jeju 63243, Korea.
| | - Yong Seok Ahn
- Choung Ryong Fisheries Co. LTD, 7825 Iljudong-ro, Namwon-epu, Seogwipo, Jeju 63612, Korea.
| | - Jin Won Hyun
- School of Medicine, Jeju National University, Jeju 63243, Korea.
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207
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Nguyen LTH, Nguyen UT, Kim YH, Shin HM, Yang IJ. Astragali Radix and its compound formononetin ameliorate diesel particulate matter-induced skin barrier disruption by regulation of keratinocyte proliferation and apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2019; 228:132-141. [PMID: 30243826 DOI: 10.1016/j.jep.2018.09.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/10/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Astragali Radix (AR), the root of Astragalus mongholicus Bunge, is widely applied in traditional medicine to promote skin health and tissue regeneration. AIM OF THE STUDY This study investigated the effects of AR and its active compound, formononetin (FMT), on skin barrier defects in keratinocytes exposed to diesel particulate matter (PM). MATERIALS AND METHODS HaCaT cells and three-dimensional (3D) human skin reconstructed model were pre-treated with AR (50, 100 μg/ml) and FMT (30, 50 μM), then treated with PM (200 μg/ml). RESULTS AR and FMT significantly enhanced the expression of Keratin (KRT) 16 in PM stimulated HaCaT cells. PM increased p53 and Bax expression as well as the subsequent cleavage of caspase 3 and PARP in HaCaT cells, while this was inhibited by AR and FMT treatment. In vitro studies using the PM stimulated 3D human skin reconstructed model revealed that AR and FMT increased the expression of KRT 16 and KRT 17. Histological examination of the 3D human skin reconstructed model showed that AR and FMT up-regulated the expression of Ki67, but down-regulated the expression of cleaved caspase 3. Both AR and FMT significantly inhibited phosphorylation of ERK, but not JNK and p38 MAPK in PM stimulated HaCaT cells. CONCLUSIONS These results suggest that AR and FMT act as anti-pollution agents and alleviate PM induced skin barrier defects through regulation of apoptosis and proliferation in keratinocytes.
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Affiliation(s)
- Ly Thi Huong Nguyen
- Department of Physiology, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Uy Thai Nguyen
- Department of Physiology, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Yeoun-Hee Kim
- Institute of Biomedical Engineering Research, Medical School, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 702-701, Republic of Korea
| | - Heung-Mook Shin
- Department of Physiology, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea.
| | - In-Jun Yang
- Department of Physiology, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea.
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Hyun YJ, Piao MJ, Kang KA, Ryu YS, Zhen AX, Cho SJ, Kang HK, Koh YS, Ahn MJ, Kim TH, Hyun JW. 3,4-Dicaffeoylquinic acid protects human keratinocytes against environmental oxidative damage. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.11.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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209
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Liu Y, Zhou XQ, Lu J, Li ST, Nie Y, Tian JL, Liu X, Yan SP. Biological evaluation of rare earth complexes bearing 1H
-imidazo[4,5-f
]-1,10-phenanthroline moiety as promising anticancer chemotherapeutics. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4617] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yue Liu
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
| | - Xue-Quan Zhou
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
- Leiden Institute of Chemistry, Gorlaeus Laboratories; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Jing Lu
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
| | - Si-Tong Li
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| | - Yan Nie
- Medical School of Nankai University, Nankai University; Tianjin 300071 People's Republic of China
| | - Jin-Lei Tian
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
| | - Xin Liu
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
| | - Shi-Ping Yan
- Department of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Key Laboratory of Advanced Energy Materials Chemistry (MOE); Tianjin 300071 People's Republic of China
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Bai Y, Casas L, Scheers H, Janssen BG, Nemery B, Nawrot TS. Mitochondrial DNA content in blood and carbon load in airway macrophages. A panel study in elderly subjects. ENVIRONMENT INTERNATIONAL 2018; 119:47-53. [PMID: 29933237 DOI: 10.1016/j.envint.2018.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/20/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Mitochondria are sensitive to air pollutants due to their lack of repair capacity. Changes in mitochondrial DNA copy number (mtDNAcn) or content is a proxy of mitochondrial damage and has been associated with recent exposure to traffic-derived air pollutants, nitrogen dioxide (NO2) and black carbon (BC). Inhaled BC can be phagocytosed by airway macrophages (AMs), and its amount in AM reflects personal exposure to traffic-related air pollution. OBJECTIVES The present study investigated the relation between the internal marker AM BC and ambient NO2 concentration and examined the associations of mtDNAcn with NO2 and AM BC. METHODS A panel of 20 healthy retired participants (10 couples) living in Belgium underwent repeated assessments of health and air pollution exposure at 11 time points over one year. We increased exposure contrast temporarily by moving participants for 10 days to Milan, Italy (high exposure) and to Vindeln, Sweden (low exposure). Personal exposure to NO2 was measured during 5 consecutive days prior to each assessment time point. The amount of BC was assessed by image analysis in AMs retrieved from induced sputum collected at 7 time points. Blood mtDNAcn was determined by qPCR at each time point. Associations between AM BC and NO2, and of mtDNAcn with NO2 and AM BC were estimated using linear mixed effect models adjusted for covariates and potential confounders. RESULTS Mean concentrations of 5-day average NO2 were higher in Milan (64 μg/m3) and lower in Vindeln (4 μg/m3) than Belgium (26 μg/m3). Each 10 μg/m3 increment in NO2 exposure during the last 5 days was associated with 0.07 μm2 (95% CI: 0.001 to 0.012) increase in median area of AM BC. A 10 μg/m3 increase in NO2 was associated with 3.9% (95% CI: 2.2 to 5.5%) decrease in mtDNAcn. Consistently, each 1 μm2 increment in median area of AM BC was associated with 24.8% (95% CI: 6.8 to 39.3%) decrease in mtDNAcn. CONCLUSION In this quasi-experimental setting involving moving persons to places with high and low ambient air pollution, we found changes in AM BC according to ambient air pollution levels measured during the previous 5 days. Both higher ambient NO2 and the internal lung BC load, paralleled mitochondrial compromises as exemplified by lower mtDNA content.
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Affiliation(s)
- Yang Bai
- Center for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Herestraat 49, 3000 Leuven, Belgium.
| | - Lidia Casas
- Center for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Herestraat 49, 3000 Leuven, Belgium.
| | - Hans Scheers
- Center for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Bram G Janssen
- Centre for Environmental Sciences, Hasselt University, Campus Diepenbeek, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium.
| | - Benoit Nemery
- Center for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Herestraat 49, 3000 Leuven, Belgium.
| | - Tim S Nawrot
- Center for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Herestraat 49, 3000 Leuven, Belgium; Centre for Environmental Sciences, Hasselt University, Campus Diepenbeek, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium.
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Li J, Zhou Q, Liang Y, Pan W, Bei Y, Zhang Y, Wang J, Jiao Z. miR-486 inhibits PM2.5-induced apoptosis and oxidative stress in human lung alveolar epithelial A549 cells. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:209. [PMID: 30023372 DOI: 10.21037/atm.2018.06.09] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background Environmental exposure to particulate matter 2.5 (PM2.5) threatens public health, which has caused worldwide concerns. MicroRNAs (miRNAs, miRs) participate in multiple biological regulation. Among them, miR-486 has been reported to be a beneficial molecule for cell survival in various cell types. However, the potential function of miR-486 in PM2.5-induced cytotoxic is still uncertain. Methods The expression of miR-486 was detected by quantitative real-time polymerase chain reaction (qRT-PCR) after A549 cells incubated with PM2.5. Then TUNEL staining and DCFH-DA fluorescence were used to test the apoptosis and ROS generation of A549 cells after exposed to PM2.5 with miR-486 mimic. Western blot was performed to determine the expression of Bax/Bcl2 ratio. In addition, western blot and rescue experiments were conducted to determine the target gene of miR-486. Results After treated with PM2.5, the expression of miR-486 was decreased. And miR-486 mimic treatment reduced cell apoptosis and reactive oxygen species (ROS) generation induced by PM2.5 exposure. Further studies showed that miR-486 negatively regulated the protein levels of PTEN and FOXO1. Rescue experiments demonstrated that PTEN and FOXO1 mediated the protective effects of miR-486 in PM2.5-treated human lung alveolar epithelial A549 cells. Conclusions Collectively, our findings identify that miR-486 relieves PM2.5-induced cell injury by targeting PTEN and FOXO1 in human lung alveolar epithelial A549 cells.
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Affiliation(s)
- Jin Li
- Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Qiulian Zhou
- Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Yajun Liang
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Wen Pan
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Yihua Bei
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Yuhui Zhang
- State Key Laboratory of Cardiovascular Disease, Heart Failure Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Jinhua Wang
- Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Zheng Jiao
- Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
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