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Hong GL, Kim KH, Kim YJ, Lee HJ, Cho SP, Han SY, Yang SW, Lee JS, Kang SK, Lim JS, Jung JY. Novel role of LLGL2 silencing in autophagy: reversing epithelial-mesenchymal transition in prostate cancer. Biol Res 2024; 57:25. [PMID: 38720397 PMCID: PMC11077766 DOI: 10.1186/s40659-024-00499-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 04/11/2024] [Indexed: 05/12/2024] Open
Abstract
PURPOSE Prostate cancer (PCa) is a major urological disease that is associated with significant morbidity and mortality in men. LLGL2 is the mammalian homolog of Lgl. It acts as a tumor suppressor in breast and hepatic cancer. However, the role of LLGL2 and the underlying mechanisms in PCa have not yet been elucidated. Here, we investigate the role of LLGL2 in the regulation of epithelial-mesenchymal transition (EMT) in PCa through autophagy in vitro and in vivo. METHODS PC3 cells were transfected with siLLGL2 or plasmid LLGL2 and autophagy was examined. Invasion, migration, and wound healing were assessed in PC3 cells under autophagy regulation. Tumor growth was evaluated using a shLLGL2 xenograft mouse model. RESULTS In patients with PCa, LLGL2 levels were higher with defective autophagy and increased EMT. Our results showed that the knockdown of LLGL2 induced autophagy flux by upregulating Vps34 and ATG14L. LLGL2 knockdown inhibits EMT by upregulating E-cadherin and downregulating fibronectin and α-SMA. The pharmacological activation of autophagy by rapamycin suppressed EMT, and these effects were reversed by 3-methyladenine treatment. Interestingly, in a shLLGL2 xenograft mouse model, tumor size and EMT were decreased, which were improved by autophagy induction and worsened by autophagy inhibition. CONCLUSION Defective expression of LLGL2 leads to attenuation of EMT due to the upregulation of autophagy flux in PCa. Our results suggest that LLGL2 is a novel target for alleviating PCa via the regulation of autophagy.
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Affiliation(s)
- Geum-Lan Hong
- Department of Veterinary Medicine, Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon, 34134, Republic of Korea
| | - Kyung-Hyun Kim
- Department of Veterinary Medicine, Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon, 34134, Republic of Korea
| | - Yae-Ji Kim
- Department of Veterinary Medicine, Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon, 34134, Republic of Korea
| | - Hui-Ju Lee
- Department of Veterinary Medicine, Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon, 34134, Republic of Korea
| | - Sung-Pil Cho
- Department of Veterinary Medicine, Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon, 34134, Republic of Korea
| | - Seung-Yun Han
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, 35365, Republic of Korea
| | - Seung Woo Yang
- Department of Urology, College of Medicine, Chungnam National University Hospital, Daejeon, 35015, Republic of Korea
| | - Jong-Soo Lee
- Department of Veterinary Medicine, Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon, 34134, Republic of Korea
| | - Shin-Kwang Kang
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Chungnam National University Hospital, Daejeon, 35015, Republic of Korea
| | - Jae-Sung Lim
- Department of Urology, College of Medicine, Chungnam National University Hospital, Daejeon, 35015, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine, Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon, 34134, Republic of Korea.
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Lee HJ, Kim YJ, Kim KH, Cho SP, Hong GL, Jung JY. Fulvestrant alleviates cisplatin-induced acute kidney injury via repression of BNIP3-mediated apoptosis and autophagy. J Pharm Pharmacol 2024; 76:489-498. [PMID: 37942668 DOI: 10.1093/jpp/rgad094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 10/13/2023] [Indexed: 11/10/2023]
Abstract
Cisplatin-induced acute kidney injury (AKI) is a clinical disease characterized by a sudden loss of renal function within a few hours or days, due to cisplatin uptake. Fulvestrant is an oestrogen receptor alpha (ERα) antagonist used for endocrine therapy. However, the role of fulvestrant in cisplatin-induced AKI remains unclear. In this study, we investigated the effects of fulvestrant on the regulation of apoptotic cell death and autophagic response in cisplatin-induced AKI. The human kidney proximal tubule epithelial cell line (HK-2) was co-treated with fulvestrant and cisplatin. C57BL/6 mice were subcutaneously injected with fulvestrant and cisplatin was administered via intraperitoneal injection. First, cisplatin treatment increased ERα expression, apoptosis, and autophagy in HK-2 cells. Fulvestrant treatment decreased apoptosis and autophagy, which were accompanied by cisplatin treatment in HK-2 cells. Consistent with in vitro results, cisplatin treatment significantly increased ERα expression in vivo. Additionally, cisplatin treatment increased renal injury, apoptosis, and autophagy. Surprisingly, compared to that in the cisplatin-treated mice group, reduced cisplatin-induced renal injury, apoptosis, and autophagy was observed in the cisplatin+fulvestrant-treated mice group. In summary, these results suggest that fulvestrant plays an important role in cisplatin-induced AKI by decreasing apoptosis and autophagy.
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Affiliation(s)
- Hui-Ju Lee
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yae-Ji Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Kyung-Hyun Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Sung-Pil Cho
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Geum-Lan Hong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
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3
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Maes SL, Dietrich J, Midolo G, Schwieger S, Kummu M, Vandvik V, Aerts R, Althuizen IHJ, Biasi C, Björk RG, Böhner H, Carbognani M, Chiari G, Christiansen CT, Clemmensen KE, Cooper EJ, Cornelissen JHC, Elberling B, Faubert P, Fetcher N, Forte TGW, Gaudard J, Gavazov K, Guan Z, Guðmundsson J, Gya R, Hallin S, Hansen BB, Haugum SV, He JS, Hicks Pries C, Hovenden MJ, Jalava M, Jónsdóttir IS, Juhanson J, Jung JY, Kaarlejärvi E, Kwon MJ, Lamprecht RE, Le Moullec M, Lee H, Marushchak ME, Michelsen A, Munir TM, Myrsky EM, Nielsen CS, Nyberg M, Olofsson J, Óskarsson H, Parker TC, Pedersen EP, Petit Bon M, Petraglia A, Raundrup K, Ravn NMR, Rinnan R, Rodenhizer H, Ryde I, Schmidt NM, Schuur EAG, Sjögersten S, Stark S, Strack M, Tang J, Tolvanen A, Töpper JP, Väisänen MK, van Logtestijn RSP, Voigt C, Walz J, Weedon JT, Yang Y, Ylänne H, Björkman MP, Sarneel JM, Dorrepaal E. Environmental drivers of increased ecosystem respiration in a warming tundra. Nature 2024; 629:105-113. [PMID: 38632407 PMCID: PMC11062900 DOI: 10.1038/s41586-024-07274-7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/06/2024] [Indexed: 04/19/2024]
Abstract
Arctic and alpine tundra ecosystems are large reservoirs of organic carbon1,2. Climate warming may stimulate ecosystem respiration and release carbon into the atmosphere3,4. The magnitude and persistency of this stimulation and the environmental mechanisms that drive its variation remain uncertain5-7. This hampers the accuracy of global land carbon-climate feedback projections7,8. Here we synthesize 136 datasets from 56 open-top chamber in situ warming experiments located at 28 arctic and alpine tundra sites which have been running for less than 1 year up to 25 years. We show that a mean rise of 1.4 °C [confidence interval (CI) 0.9-2.0 °C] in air and 0.4 °C [CI 0.2-0.7 °C] in soil temperature results in an increase in growing season ecosystem respiration by 30% [CI 22-38%] (n = 136). Our findings indicate that the stimulation of ecosystem respiration was due to increases in both plant-related and microbial respiration (n = 9) and continued for at least 25 years (n = 136). The magnitude of the warming effects on respiration was driven by variation in warming-induced changes in local soil conditions, that is, changes in total nitrogen concentration and pH and by context-dependent spatial variation in these conditions, in particular total nitrogen concentration and the carbon:nitrogen ratio. Tundra sites with stronger nitrogen limitations and sites in which warming had stimulated plant and microbial nutrient turnover seemed particularly sensitive in their respiration response to warming. The results highlight the importance of local soil conditions and warming-induced changes therein for future climatic impacts on respiration.
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Affiliation(s)
- S L Maes
- Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umeå University, Abisko, Sweden.
- Forest Ecology and Management Group (FORECOMAN), Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium.
| | - J Dietrich
- Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umeå University, Abisko, Sweden
| | - G Midolo
- Department of Spatial Sciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Praha-Suchdol, Czech Republic
| | - S Schwieger
- Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umeå University, Abisko, Sweden
- Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden
| | - M Kummu
- Water and development research group, Aalto University, Espoo, Finland
| | - V Vandvik
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway
| | - R Aerts
- Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit, Amsterdam, The Netherlands
| | - I H J Althuizen
- Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway
- NORCE Climate and Environment, Norwegian Research Centre AS, Bergen, Norway
| | - C Biasi
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - R G Björk
- Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden
- Gothenburg Global Biodiversity Centre, Gothenburg, Sweden
| | - H Böhner
- Department of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics, The Arctic University of Norway, Tromsø, Norway
| | - M Carbognani
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - G Chiari
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - C T Christiansen
- Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark
- Center for Permafrost, Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - K E Clemmensen
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - E J Cooper
- Department of Arctic and Marine Biology, UiT-the Arctic University of Norway, Tromsø, Norway
| | - J H C Cornelissen
- Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit, Amsterdam, The Netherlands
| | - B Elberling
- Center for Permafrost, Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - P Faubert
- Carbone Boréal, Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, Quebec, Canada
| | - N Fetcher
- Institute for Environmental Science and Sustainability, Wilkes University, Wilkes-Barre, PA, USA
| | - T G W Forte
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - J Gaudard
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway
| | - K Gavazov
- Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umeå University, Abisko, Sweden
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Lausanne, Switzerland
| | - Z Guan
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems and College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - J Guðmundsson
- Agricultural University of Iceland, Reykjavik, Iceland
| | - R Gya
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway
| | - S Hallin
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - B B Hansen
- Department of Terrestrial Ecology, Norwegian Institute for Nature Research, Trondheim, Norway
- Gjærevoll Centre for Biodiversity Foresight Analyses & Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - S V Haugum
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- The Heathland Centre, Alver, Norway
| | - J-S He
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems and College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
- Institute of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - C Hicks Pries
- Department of Biological Sciences, Dartmouth College, Hanover, NH, USA
| | - M J Hovenden
- Biological Sciences, School of Natural Sciences, University of Tasmania, Hobart, Tasmania, Australia
- Australian Mountain Research Facility, Canberra, Australian Capital Territory, Australia
| | - M Jalava
- Water and development research group, Aalto University, Espoo, Finland
| | - I S Jónsdóttir
- Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland
| | - J Juhanson
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - J Y Jung
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
| | - E Kaarlejärvi
- Research Centre for Ecological Change, Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - M J Kwon
- Korea Polar Research Institute, Incheon, Korea
- Institute of Soil Science, Universität Hamburg, Hamburg, Germany
| | - R E Lamprecht
- University of Eastern Finland, Department of Environmental and Biological Sciences, Kuopio, Finland
| | - M Le Moullec
- Gjærevoll Centre for Biodiversity Foresight Analyses & Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
- Greenland Institute of Natural Resources, Nuuk, Greenland
| | - H Lee
- NORCE, Norwegian Research Centre AS, Bjerknes Centre for Climate Research, Bergen, Norway
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - M E Marushchak
- University of Eastern Finland, Department of Environmental and Biological Sciences, Kuopio, Finland
| | - A Michelsen
- Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - T M Munir
- Department of Geography, University of Calgary, Calgary, Alberta, Canada
| | - E M Myrsky
- Arctic Centre, University of Lapland, Rovaniemi, Finland
- Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - C S Nielsen
- Center for Permafrost, Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
- SEGES Innovation P/S, Aarhus, Denmark
| | - M Nyberg
- Biological Sciences, School of Natural Sciences, University of Tasmania, Hobart, Tasmania, Australia
| | - J Olofsson
- Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden
| | - H Óskarsson
- Agricultural University of Iceland, Reykjavik, Iceland
| | - T C Parker
- Ecological Sciences, The James Hutton Institute, Aberdeen, UK
| | - E P Pedersen
- Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umeå University, Abisko, Sweden
- Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - M Petit Bon
- Department of Wildland Resources, Quinney College of Natural Resources and Ecology Center, Utah State University, Logan, UT, USA
- Department of Arctic Biology, University Centre in Svalbard, Longyearbyen, Norway
| | - A Petraglia
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - K Raundrup
- Greenland Institute of Natural Resources, Nuuk, Greenland
| | - N M R Ravn
- Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - R Rinnan
- Center for Volatile Interactions, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - H Rodenhizer
- Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, USA
| | - I Ryde
- Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark
- Center for Permafrost, Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - N M Schmidt
- Department of Ecoscience, Aarhus University, Roskilde, Denmark
- Arctic Research Centre, Aarhus University, Aarhus, Denmark
| | - E A G Schuur
- Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, USA
- Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ, USA
| | - S Sjögersten
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, UK
| | - S Stark
- Arctic Centre, University of Lapland, Rovaniemi, Finland
| | - M Strack
- Department of Geography and Environmental Management, University of Waterloo, Waterloo, Ontario, Canada
| | - J Tang
- The Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA, USA
| | - A Tolvanen
- Natural Resources Institute Finland, Helsinki, Finland
| | - J P Töpper
- Norwegian Institute for Nature Research, Bergen, Norway
| | - M K Väisänen
- Arctic Centre, University of Lapland, Rovaniemi, Finland
- Ecology and Genetics Research Unit, University of Oulu, Oulu, Finland
| | - R S P van Logtestijn
- Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit, Amsterdam, The Netherlands
| | - C Voigt
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
- Institute of Soil Science, Universität Hamburg, Hamburg, Germany
| | - J Walz
- Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umeå University, Abisko, Sweden
| | - J T Weedon
- Amsterdam Institute for Life and Environment (A-LIFE), Vrije Universiteit, Amsterdam, The Netherlands
| | - Y Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - H Ylänne
- School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
| | - M P Björkman
- Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden
- Gothenburg Global Biodiversity Centre, Gothenburg, Sweden
| | - J M Sarneel
- Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden
| | - E Dorrepaal
- Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umeå University, Abisko, Sweden
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Gupta R, Min CW, Cho JH, Jung JY, Jeon JS, Kim YJ, Kim JK, Kim ST. Integrated "-omics" analysis highlights the role of brassinosteroid signaling and antioxidant machinery underlying improved rice seed longevity during artificial aging treatment. Plant Physiol Biochem 2024; 206:108308. [PMID: 38169224 DOI: 10.1016/j.plaphy.2023.108308] [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] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/04/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024]
Abstract
Seed longevity is a critical characteristic in agriculture, yet the specific genes/proteins responsible for this trait and the molecular mechanisms underlying reduced longevity during seed aging remain largely elusive. Here we report the comparative proteome and metabolome profiling of three rice cultivars exhibiting varying degrees of aging tolerance: Dharial, an aging-tolerant cultivar; Ilmi, an aging-sensitive cultivar; and A2, a moderately aging-tolerant cultivar developed from the crossbreeding of Dharial and Ilmi. Artificial aging treatment (AAT) markedly reduced the germination percentage and enhanced the activities of antioxidant enzymes in all the cultivars. Further, proteomics results showed a key role of the ubiquitin (Ub)-proteasome pathway in the degradation of damaged proteins during AAT while other proteases were majorly reduced. In addition, proteins associated with energy production and protein synthesis were strongly reduced in Ilmi while these were majorly increased in A2 and Dharial. These, along with metabolomics results, suggest that Ub-proteasome mediated protein degradation during AAT results in the accumulation of free amino acids in Ilmi while tolerant cultivars potentially utilize those for energy production and synthesis of stress-related proteins, especially hsp20/alpha-crystallin family protein. Additionally, both Dharial and A2 seem to activate brassinosteroid signaling and suppress jasmonate signaling which initiates a signaling cascade that allows accumulation of enzymatic and non-enzymatic antioxidants for efficient detoxification of aging-induced ROS. Taken together, these results provide an in-depth understanding of the aging-induced changes in rice seeds and highlight key pathways responsible for maintaining seed longevity during AAT.
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Affiliation(s)
- Ravi Gupta
- College of General Education, Kookmin University, Seoul, 02707, Republic of Korea
| | - Cheol Woo Min
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, 50463, Republic of Korea
| | - Jun-Hyeon Cho
- Sangju Substation, National Institute of Crop Science, Rural Development Administration (RDA), Sangju, 37139, Republic of Korea
| | - Ju-Young Jung
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, 50463, Republic of Korea
| | - Jong-Seong Jeon
- Graduate School of Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Ye Jin Kim
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea
| | - Jae Kwang Kim
- Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea
| | - Sun Tae Kim
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, 50463, Republic of Korea.
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5
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Eom SH, Hong GL, Kang HB, Lee NS, Kim DK, Jeong YG, Kim CS, Yoo YC, Lee BH, Jung JY, Kim DS, Han SY. Neuroprotective Effects of Water Extract from Brown Algae Petalonia binghamiae in an Experimental Model of Focal Cerebral Ischemia In Vitro and In Vivo. Curr Issues Mol Biol 2023; 45:8427-8443. [PMID: 37886974 PMCID: PMC10605114 DOI: 10.3390/cimb45100531] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023] Open
Abstract
Focal cerebral ischemia (fCI) can result in brain injury and sensorimotor deficits. Brown algae are currently garnering scientific attention as potential therapeutic candidates for fCI. This study investigated the therapeutic effects of the hot water extract of Petalonia binghamiae (wPB), a brown alga, in in vitro and in vivo models of fCI. The neuroprotective efficacy of wPB was evaluated in an in vitro excitotoxicity model established using HT-22 cells challenged with glutamate. Afterward, C57/BL6 mice were administered wPB for 7 days (10 or 100 mg/kg, intragastric) and subjected to middle cerebral artery occlusion and reperfusion (MCAO/R) operation, which was used as an in vivo fCI model. wPB co-incubation significantly inhibited cell death, oxidative stress, and apoptosis, as well as stimulated the expression of heme oxygenase-1 (HO-1), an antioxidant enzyme, and the nuclear translocation of its upstream regulator, nuclear factor erythroid 2-related factor 2 (Nrf2) in HT-22 cells challenged with glutamate-induced excitotoxicity. Pretreatment with either dose of wPB significantly attenuated infarction volume, neuronal death, and sensorimotor deficits in an in vivo fCI model. Furthermore, the attenuation of oxidative stress and apoptosis in the ischemic lesion accompanied the wPB-associated protection. This study suggests that wPB can counteract fCI via an antioxidative effect, upregulating the Nrf2/HO-1 pathway.
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Affiliation(s)
- Sun Ho Eom
- Healinnols Inc., Daejeon 34054, Republic of Korea; (S.H.E.); (H.B.K.)
| | - Geum-Lan Hong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
| | - Hyun Bae Kang
- Healinnols Inc., Daejeon 34054, Republic of Korea; (S.H.E.); (H.B.K.)
| | - Nam-Seob Lee
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
| | - Do Kyung Kim
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
| | - Young Gil Jeong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
| | - Chun-Sung Kim
- Department of Oral Biochemistry, College of Dentistry, Chosun University, Gwangju 61452, Republic of Korea;
| | - Yung Choon Yoo
- Department of Microbiology, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea;
| | - Bong Ho Lee
- Department of Chemical Technology, Hanbat National University, Daejeon 34158, Republic of Korea;
| | - Ju-Young Jung
- Department of Histology & Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Dong-Sub Kim
- Division of Natural Product Research, Korea Prime Pharmacy Co., Ltd., Gwangju 61473, Republic of Korea;
| | - Seung Yun Han
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
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Min CW, Gupta R, Jung JY, Rakwal R, Kang JW, Cho JH, Jeon JS, Kim ST. Comparative Proteome-wide Characterization of Three Different Tissues of High-Protein Mutant and Wild Type Unravels Protein Accumulation Mechanisms in Rice Seeds. J Agric Food Chem 2023; 71:12357-12367. [PMID: 37549031 DOI: 10.1021/acs.jafc.3c01698] [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] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Improving the proteins and amino acid contents of rice seeds is one of the prime objectives of plant breeders. We recently developed an EMS mutant/high-protein mutant (HPM) of rice that exhibits 14.8% of the total protein content as compared to its parent Dharial (wild-type), which shows only 9.3% protein content in their mature seeds. However, the mechanisms underlying the higher protein accumulation in these HPM seeds remain largely elusive. Here, we utilized high-throughput proteomics to examine the differences in the proteome profiles of the embryo, endosperm, and bran tissues of Dharial and HPM seeds. Utilizing a label-free quantitative proteomic and subsequent functional analyses of the identified proteins revealed that nitrogen compound biosynthesis, intracellular transport, protein/amino acid synthesis, and photosynthesis-related proteins were specifically enriched in the endosperm and bran of the high-protein mutant seed. Our data have uncovered proteome-wide changes highlighting various functions of metabolic pathways associated with protein accumulation in rice seeds.
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Affiliation(s)
- Cheol Woo Min
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Ravi Gupta
- College of General Education, Kookmin University, Seoul 02707, Republic of Korea
| | - Ju-Young Jung
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Randeep Rakwal
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8574, Japan
- Research Laboratory for Biotechnology and Biochemistry (RLABB), GPO 13265, Kathmandu 44600, Nepal
| | - Ju-Won Kang
- Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration (RDA), Miryang 50424, Republic of Korea
| | - Jun-Hyeon Cho
- Sangju Substation, National Institute of Crop Science, Rural Development Administration (RDA), Sangju 37139, Republic of Korea
| | - Jong-Seong Jeon
- Graduate School of Biotechnology and Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Sun Tae Kim
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
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Gupta R, Min CW, Jung JY, Ham TH, Jeon JS, Cho LH, Kwon SW, Kim ST. Proteome profiling highlights mechanisms underlying pigment and tocopherol accumulation in red and black rice seeds. Proteomics 2023:e2300035. [PMID: 37058097 DOI: 10.1002/pmic.202300035] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 04/15/2023]
Abstract
Rice is a major component of the human diet and feeds more than 50 million people across the globe. We previously developed two pigmented rice cultivars, Super-hongmi (red seeds) and Super-jami (black seeds), that are highly rich in antioxidants and exhibit high levels of radical scavenging activities. However, the molecular mechanism underlying the accumulation of pigments and different antioxidants in these rice cultivars remains largely elusive. Here, we report the proteome profiles of mature Super-hongmi and Super-jami seeds, and compared them with the Hopum (white seeds) using a label-free quantitative proteomics approach. This approach led to the identification of 5127 rice seed proteins of which 1628 showed significant changes in the pigmented rice cultivar(s). The list of significantly modulated proteins included a phytoene desaturase (PDS3) which suggested accumulation of ζ-carotene in red seeds while the black seeds seem to accumulate more of anthocyanins because of the higher abundance of dihydroflavonol 4-reductase. Moreover, proteins associated with lignin and tocopherol biosynthesis were highly increased in both red and black cultivars. Taken together, these data report the seed proteome of three different colored rice seeds and identify novel components associated with pigment accumulation in rice.
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Affiliation(s)
- Ravi Gupta
- College of General Education, Kookmin University, Seoul, Republic of Korea
| | - Cheol Woo Min
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
| | - Ju-Young Jung
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
| | - Tae-Ho Ham
- Agricultural Science, Korea National Open University, Seoul, Republic of Korea
| | - Jong-Seong Jeon
- Graduate School of Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin, Republic of Korea
| | - Lae-Hyeon Cho
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
| | - Soon Wook Kwon
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
| | - Sun Tae Kim
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
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8
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Hong GL, Lee HJ, Kim YJ, Kim KH, Jung JY. Stauntonia hexaphylla Extract Ameliorates Androgenic Alopecia by Inhibiting Androgen Signaling in Testosterone-induced Alopecia Mice. Iran J Pharm Res 2022; 21:e133333. [PMID: 36896319 PMCID: PMC9990510 DOI: 10.5812/ijpr-133333] [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] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 01/30/2023]
Abstract
Background Stauntonia hexaphylla has been a traditional folk remedy for alleviating fever and providing anti-inflammatory properties. Androgenetic alopecia (AGA) is the most common form mediated by the presence of the dihydrotestosterone (DHT). Objectives In this study, we evaluated the effects of an extract of S. hexaphylla on AGA models and its mechanisms of action. Methods We studied S. hexaphylla extract to evaluate 5α-reductase and androgen receptor (AR) levels, apoptosis, and cell proliferation in vitro and in vivo. In addition, paracrine factors for androgenic alopecia, such as transforming growth factor beta-1 (TGF-β1) and dickkopf-a (DKK-1), were examined. Apoptosis was investigated, and the evaluation of proliferation was examined with cytokeratin 14 (CK-14) and proliferating cell nuclear antigen (PCNA). Results In human follicular dermal papilla cells, the 5α-reductase and AR were decreased following S. hexaphylla treatment, which reduced the Bax/Bcl-2 ratio. Histologically, the dermal thickness and follicle number were higher in the S. hexaphylla groups compared with the AGA group. In addition, the DHT concentration, 5α-reductase, and AR were decreased, thereby downregulating TGF-β1 and DKK-1 expression and upregulating cyclin D in S. hexaphylla groups. The numbers of keratinocyte-positive and PCNA-positive cells were increased compared to those in the AGA group. Conclusions The present study demonstrated that the S. hexaphylla extract ameliorated AGA by inhibiting 5α-reductase and androgen signaling, reducing AGA paracrine factors that induce keratinocyte (KC) proliferation, and inhibition apoptosis and catagen prematuration.
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Affiliation(s)
- Geum-Lan Hong
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Hui-Ju Lee
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Yae-Ji Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Kyung-Hyun Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
- Corresponding Author: Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 220 Gung-dong, Yusung-gu, P. O. Box: 34134, Daejeon, Republic of Korea.
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Kim YJ, Kim KH, Kim HY, Kang SM, Hong GL, Lee HJ, Lim SS, Jung JY. Sargassum horneri Extract Alleviates Testosterone-Induced Benign Prostatic Hyperplasia In Vitro and In Vivo. Journal of Aquatic Food Product Technology 2022. [DOI: 10.1080/10498850.2022.2132126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Yae-Ji Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Kyung-Hyun Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Hyun-Yong Kim
- Department of Food Science and Nutrition, Hallym University, Chuncheon-si, Republic of Korea
| | - Sung-Mo Kang
- Department of Food Science and Nutrition, Hallym University, Chuncheon-si, Republic of Korea
| | - Geum-Lan Hong
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Hui-Ju Lee
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Soon-Sung Lim
- Department of Food Science and Nutrition, Hallym University, Chuncheon-si, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
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Hong GL, Kim KH, Kim YJ, Lee HJ, Kim HT, Jung JY. Decreased mitophagy aggravates benign prostatic hyperplasia in aged mice through DRP1 and estrogen receptor α. Life Sci 2022; 309:120980. [PMID: 36152678 DOI: 10.1016/j.lfs.2022.120980] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 07/16/2022] [Revised: 09/07/2022] [Accepted: 09/15/2022] [Indexed: 11/28/2022]
Abstract
Benign prostatic hyperplasia (BPH) is an age-related disease, whose etiology largely remains unclear. The regulation of mitophagy plays a key role in aging and associated diseases, however, its function in BPH has not been studied. Although the expression of the androgen receptor is primarily implicated in BPH, the estrogen receptor (ER) has been reported to be involved in the development of BPH by mediating the proliferation of prostate cells. Here, we studied the involvement of mitophagy and ERs in spontaneous BPH in aging mice and investigated their functions. To identify the activation of mitophagy and expression of ERs, 8-week, 12-month, and 24-month-old mice were used. Mice were treated with mitochondrial division inhibitor mdivi-1, a dynamin-related protein 1 (Drp1) inhibitor, to examine the expression of mitophagy-related proteins and the development of BPH. In addition, prostate stromal cells were treated with an ER antagonist to investigate the regulation of mitophagy following the expression of ERs. With aging, the Drp1 and phosphorylation of parkin reduce. Electron microscopy revealed reduced mitochondrial fission and mitophagy. In addition, the expression of androgen receptor was decreased and that of ERα was increased in aged mice with BPH. Treatment with mdivi-1 exacerbated BPH and increased cell proliferation. In addition, blockade of ERα increased mitophagy and decreased cell proliferation. In conclusion, mitophagy is reduced with aging during the development of BPH. We speculate that spontaneous BPH progresses through the reduction in the expression of ERα in aged mice by downregulating mitophagy.
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Affiliation(s)
- Geum-Lan Hong
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Kyung-Hyun Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yae-Ji Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hui-Ju Lee
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyun-Tae Kim
- Gwangju Center, Korea Basic Science Institute (KBSI), Gwangju 61751, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Republic of Korea.
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11
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Kim KH, Hong GL, Kim YJ, Lee HJ, Jung JY. Silencing of LLGL2 Suppresses the Estradiol-Induced BPH-1 Cell Proliferation through the Regulation of Autophagy. Biomedicines 2022; 10:biomedicines10081981. [PMID: 36009528 PMCID: PMC9406103 DOI: 10.3390/biomedicines10081981] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/05/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Lethal giant larvae (Lgl) is an apical-basal polarity gene first identified in Drosophila. LLGL2 is one of the mammalian homologs of Lgl. However, little is known about its function in the prostate. In this study, to explore the new role of LLGL2 in the prostate, we examined the proliferative activity of a BPH-1 cell line, a well-established model for the human prostate biology of benign prostatic hyperplasia (BPH). The expression of LLGL2 was dose-dependently increased in BPH-1 cells after treatment with 17β-estradiol (E2). Additionally, E2 treatment increased the proliferation of the BPH-1 cells. However, the knockdown of LLGL2 with siRNA significantly suppressed the proliferation of the E2-treated BPH-1 cells. Moreover, si-llgl2 treatment up-regulated the expression of LC-3B, ATG7, and p-beclin, which are known to play a pivotal role in autophagosome formation in E2-treated BPH-1 cells. Overexpression of LLGL2 was able to further prove these findings by showing the opposite results from the knockdown of LLGL2 in E2-treated BPH-1 cells. Collectively, our results suggest that LLGL2 is closely involved in the proliferation of prostate cells by regulating autophagosome formation. These results provide a better understanding of the mechanism involved in the effect of LLGL2 on prostate cell proliferation. LLGL2 might serve as a potential target in the diagnosis and/or treatment of human BPH.
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Affiliation(s)
| | | | | | | | - Ju-Young Jung
- Correspondence: ; Tel.: +82-42-821-8899; Fax: +82-42-821-7926
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12
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Ha SY, Jung JY, Yang JK. Optimization of a solid culture medium based on Monochamus alternatus for Cordyceps militaris fruiting body formation. Lett Appl Microbiol 2021; 74:185-193. [PMID: 34758116 DOI: 10.1111/lam.13598] [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: 06/28/2021] [Revised: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022]
Abstract
Monochamus alternatus (Coleoptera: Cerambycidae; M. alternatus), popularly known as the Japanese pine sawyer, is a vector of pinewood nematode (Bursaphelenchus xylophilus) that causes pine wilt disease. A solid medium culture with M. alternatus produced Cordyceps militaris fruiting bodies with the longest strips and the highest biological efficiency. Supplementing the original form of M. alternatus with oats resulted in slightly enhanced fruiting body production. The original form of M. alternatus showed higher production than its powder form. The solid culture medium was optimized using a response surface methodology, and the optimal medium contained the following: 8·5 g per bottle of M. alternatus and 11·5 g per bottle of oats mixed with 22·4 ml of water in a 300-ml cylindrical plastic bottle. The optimal culturing period for the fruiting body formation was 37·1 days. Under these conditions, a fruiting body dry weight of 38·0 g per bottle (actual value) was attained. The fruiting body produced using a solid culture medium based on M. alternatus had a cordycepin content of about 25 µg g-1 . The solid culture medium containing M. alternatus is highly efficient and eco-friendly, and its effectiveness in large-scale fruiting body production from C. militaris has been demonstrated.
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Affiliation(s)
- S Y Ha
- Department of Environmental Materials Science/Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Republic of Korea
| | - J Y Jung
- Department of Environmental Materials Science/Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Republic of Korea
| | - J K Yang
- Department of Environmental Materials Science/Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Republic of Korea
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Kim KH, Hong GL, Jung DY, Karunasagara S, Jeong WI, Jung JY. IL-17 deficiency aggravates the streptozotocin-induced diabetic nephropathy through the reduction of autophagosome formation in mice. Mol Med 2021; 27:25. [PMID: 33691614 PMCID: PMC7945049 DOI: 10.1186/s10020-021-00285-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 03/02/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is one of the most important medical complications of diabetes mellitus. Autophagy is an important mediator of pathological response and plays a critical role in inflammation during the progression of diabetic nephropathy. Interleukin (IL)-17A favorably modulates inflammatory disorders including DN. In this study, we examined whether IL-17A deficiency affected the autophagy process in the kidneys of mice with streptozotocin (STZ)-induced DN. METHODS The autophagic response of IL-17A to STZ-induced nephrotoxicity was evaluated by analyzing STZ-induced functional and histological renal injury in IL-17A knockout (KO) mice. RESULTS IL-17A KO STZ-treated mice developed more severe nephropathy than STZ-treated wild-type (WT) mice, with increased glomerular damage and renal interstitial fibrosis at 12 weeks. IL-17A deficiency also increased the up-regulation of proinflammatory cytokines and fibrotic gene expression after STZ treatment. Meanwhile, autophagy-associated proteins were induced in STZ-treated WT mice. However, IL-17A KO STZ-treated mice displayed a significant decrease in protein expression. Especially, the levels of LC3 and ATG7, which play crucial roles in autophagosome formation, were notably decreased in the IL-17A KO STZ-treated mice compared with their WT counterparts. CONCLUSIONS IL-17 deficiency aggravates of STZ-induced DN via attenuation of autophagic response. Our study demonstrated that IL-17A mediates STZ-induced renal damage and represents a potential therapeutic target in DN.
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Affiliation(s)
- Kyung-Hyun Kim
- Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Geum-Lan Hong
- Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Da-Young Jung
- Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Shanika Karunasagara
- Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Won-Il Jeong
- Laboratory of Liver Research, Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea.
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Barrios DM, Phillips GS, Geisler AN, Trelles SR, Markova A, Noor SJ, Quigley EA, Haliasos HC, Moy AP, Schram AM, Bromberg J, Funt SA, Voss MH, Drilon A, Hellmann MD, Comen EA, Narala S, Patel AB, Wetzel M, Jung JY, Leung DYM, Lacouture ME. IgE blockade with omalizumab reduces pruritus related to immune checkpoint inhibitors and anti-HER2 therapies. Ann Oncol 2021; 32:736-745. [PMID: 33667669 PMCID: PMC9282165 DOI: 10.1016/j.annonc.2021.02.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 02/21/2021] [Accepted: 02/24/2021] [Indexed: 12/11/2022] Open
Abstract
Background: Immunoglobulin E (IgE) blockade with omalizumab has demonstrated clinical benefit in pruritus-associated dermatoses (e.g. atopic dermatitis, bullous pemphigoid, urticaria). In oncology, pruritus-associated cutaneous adverse events (paCAEs) are frequent with immune checkpoint inhibitors (CPIs) and targeted anti-human epidermal growth factor receptor 2 (HER2) therapies. Thus, we sought to evaluate the efficacy and safety of IgE blockade with omalizumab in cancer patients with refractory paCAEs related to CPIs and anti-HER2 agents. Patients and methods: Patients included in this multicenter retrospective analysis received monthly subcutaneous injections of omalizumab for CPI or anti-HER2 therapy-related grade 2/3 pruritus that was refractory to topical corticosteroids plus at least one additional systemic intervention. To assess clinical response to omalizumab, we used the Common Terminology Criteria for Adverse Events version 5.0. The primary endpoint was defined as reduction in the severity of paCAEs to grade 1/0. Results: A total of 34 patients (50% female, median age 67.5 years) received omalizumab for cancer therapy-related paCAEs (71% CPIs; 29% anti-HER2). All had solid tumors (29% breast, 29% genitourinary, 15% lung, 26% other), and most (n = 18, 64%) presented with an urticarial phenotype. In total, 28 of 34 (82%) patients responded to omalizumab. The proportion of patients receiving oral corticosteroids as supportive treatment for management of paCAEs decreased with IgE blockade, from 50% to 9% (P < 0.001). Ten of 32 (31%) patients had interruption of oncologic therapy due to skin toxicity; four of six (67%) were successfully rechallenged following omalizumab. There were no reports of anaphylaxis or hypersensitivity reactions related to omalizumab. Conclusions: IgE blockade with omalizumab demonstrated clinical efficacy and was well tolerated in cancer patients with pruritus related to CPIs and anti-HER2 therapies.
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Affiliation(s)
- D M Barrios
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
| | - G S Phillips
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
| | - A N Geisler
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
| | - S R Trelles
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
| | - A Markova
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Dermatology, Weill Cornell Medicine, New York, USA
| | - S J Noor
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Dermatology, Weill Cornell Medicine, New York, USA
| | - E A Quigley
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Dermatology, Weill Cornell Medicine, New York, USA
| | - H C Haliasos
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Dermatology, Weill Cornell Medicine, New York, USA
| | - A P Moy
- Department of Dermatology, Weill Cornell Medicine, New York, USA; Dermatopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - A M Schram
- Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medicine, New York, USA
| | - J Bromberg
- Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medicine, New York, USA
| | - S A Funt
- Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medicine, New York, USA
| | - M H Voss
- Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medicine, New York, USA
| | - A Drilon
- Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medicine, New York, USA
| | - M D Hellmann
- Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medicine, New York, USA
| | - E A Comen
- Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medicine, New York, USA
| | - S Narala
- Department of Dermatology, Division of Internal Medicine, University of Texas MD Anderson Cancer Center, Houston, USA
| | - A B Patel
- Department of Dermatology, Division of Internal Medicine, University of Texas MD Anderson Cancer Center, Houston, USA
| | - M Wetzel
- Division of Dermatology, Department of Medicine, University of Louisville School of Medicine, Louisville, USA
| | - J Y Jung
- Division of Dermatology, Department of Medicine, University of Louisville School of Medicine, Louisville, USA; Dermatology Service, Department of Medical Oncology, Norton Cancer Institute, Louisville, USA
| | - D Y M Leung
- Department of Pediatrics, National Jewish Health, Denver, USA
| | - M E Lacouture
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Dermatology, Weill Cornell Medicine, New York, USA.
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15
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Park SK, Ryoo JH, Kang JG, Jung JY. Association of left ventricular hypertrophy with the level of thyroid hormone in euthyroid state. J Endocrinol Invest 2021; 44:111-117. [PMID: 32383145 DOI: 10.1007/s40618-020-01277-7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 04/24/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE It has been demonstrated that variation in thyroid hormone levels even within normal range was associated with increased cardiovascular risk. However, available data are still insufficient on association between left ventricular hypertrophy (LVH) and thyroid hormone levels within euthyroid state. METHODS In 69,298 Koreans with euthyroid function, we evaluated association between echocardiographically detected LVH and thyroid hormone levels within the normal range. Study participants were categorized into elderly (age ≥ 40) and younger (age < 40) groups, where subjects were divided into four groups according to quartile levels of thyroxine (FT4), triiodothyronine (FT3), and thyroid-stimulating hormone (TSH). Multivariable adjusted logistic regression analysis was used to calculate odds ratios (ORs) and 95% confidence interval (CI) for LVH (adjusted ORs [95% CI]) across quartile levels of thyroid hormones. RESULTS In elderly group, adjusted ORs for LVH generally higher in the first quartile group than other quartile groups, despite no statistical significance in some cases (first quartile: reference, second quartile: 0.86 [0.67-1.11] in TSH, 0.75 [0.58-0.95] in FT4 and 0.63 [0.49-0.81] in FT3, third quartile: 0.70 [0.54-0.92] in TSH, 0.79 [0.61-1.02] in FT4 and 0.72 [0.55-0.93] in FT3, fourth quartile: 0.81 [0.65-1.04] in TSH, 0.85 [0.65-1.10] in FT4 and 0.58 [0.44-0.77] in FT3). This finding was similarly found in the younger group, despite discrepancy in some cases. CONCLUSION In euthyroid state, low normal levels in FT4, FT3 and TSH were more strongly associated with LVH.
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Affiliation(s)
- S K Park
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jae-Hong Ryoo
- Department of Occupational and Environmental Medicine, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - J G Kang
- Total Healthcare Center, KangBuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Korea
| | - J Y Jung
- Total Healthcare Center, KangBuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Korea.
- School of Medicine, Sungkyunkwan University, Seoul, Korea.
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Kwon HH, Yang SH, Cho YJ, Shin E, Choi M, Bae Y, Jung JY, Park GH. Comparison of a 1064-nm neodymium-doped yttrium aluminum garnet picosecond laser using a diffractive optical element vs. a nonablative 1550-nm erbium-glass laser for the treatment of facial acne scarring in Asian patients: a 17-week prospective, randomized, split-face, controlled trial. J Eur Acad Dermatol Venereol 2020; 34:2907-2913. [PMID: 32603006 DOI: 10.1111/jdv.16643] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/05/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Novel picosecond lasers using a diffractive optical element (P-DOE) have been available for skin resurfacing with distinct mechanisms. However, there are limited data directly comparing P-DOE and conventional fractional lasers for the treatment of atrophic acne scarring. OBJECTIVES We sought to compare the efficacy and safety of a 1064-nm neodymium-doped yttrium aluminium garnet P-DOE and a non-ablative fractional laser (NAFL) in the treatment of acne scarring. METHODS A prospective, randomized, split-face, controlled trial was performed. One randomly assigned half-side of each patient's face (n = 25) was treated with four consecutive sessions of P-DOE at 3-week intervals and the other side with NAFL, with subsequent follow-up for 8 weeks after the final sessions. The efficacy and safety of the two lasers were determined by the Echelle d'Evaluation Clinique des Cicatrices d'acné (Scale of Clinical Evaluation of Acne Scars; ECCA) grading scale, Investigator's Global Assessment (IGA) score and patients' reports at the final visit. Histologic analysis was also performed. RESULTS The P-DOE-treated side achieved a significantly better improvement in acne appearance (ECCA per cent reduction: 55% vs. 42%) with less severe pain (4.3 vs. 5.6) (P < 0.05). The IGA score and subjective satisfaction were consistent with ECCA score results. Occurrences of treatment-related side-effects were also lower in the group treated with P-DOE (P < 0.05). Histologic analysis revealed elongation and increased density of neocollagen fibres, elastic fibres and mucin throughout the dermis from both sides. CONCLUSIONS Compared with NAFL, P-DOE afforded better clinical outcomes and fewer side-effects in the treatment of acne scarring in Asian patients.
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Affiliation(s)
- H H Kwon
- Oaro Dermatology Clinic, Seoul, Korea
| | - S H Yang
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Y J Cho
- Oaro Dermatology Clinic, Seoul, Korea
| | - E Shin
- Department of Pathology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - M Choi
- Department of Dermatology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
| | - Y Bae
- Department of Dermatology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - J Y Jung
- Oaro Dermatology Clinic, Seoul, Korea
| | - G-H Park
- Department of Dermatology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
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Karunasagara S, Hong GL, Park SR, Lee NH, Jung DY, Kim TW, Jung JY. Korean red ginseng attenuates hyperglycemia-induced renal inflammation and fibrosis via accelerated autophagy and protects against diabetic kidney disease. J Ethnopharmacol 2020; 254:112693. [PMID: 32112899 DOI: 10.1016/j.jep.2020.112693] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/10/2020] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Panax ginseng C.A. Mey. (Korean ginseng) has been widely used in traditional medicine to treat diabetes mellitus for thousands of years. It also plays a key role in health maintenance owing to its anti-oxidant and anti-fatigue properties, and is quite popular as a dietary supplement. AIM OF THE STUDY This study was designed to offer a complementary and alternative medicine to manage the diabetic kidney disease (DKD), which causes long-term damage to the renal structure. We also investigated the regulation of the autophagy mechanism, which is the underlying the pathogenesis of DKD. MATERIALS AND METHODS The effect of Korean red ginseng (KRG) on DKD was evaluated using human kidney proximal tubular cells and streptozotocin (STZ)-treated Sprague-Dawley rat models. In vitro experiments were conducted to evaluate the proteins related to fibrosis and autophagy. This was followed by in vivo experiments involving rats treated with single intraperitoneal administration of STZ (60 mg/kg) and then with KRG solution orally for 4 weeks. Proteins related to renal injury, fibrosis, and autophagy were determined by immunoblotting. Hematoxylin and eosin (H&E), Periodic acid-Schiff (PAS), Sirius red, and immunostaining were processed for histological studies. RESULTS KRG diminished the levels of metabolic measurements and blood parameters. Western blotting showed a decreased expression of proteins, such as TGF-β1, KIM1, and AGE, which are responsible for renal inflammation, injury, and fibrosis. Histological studies also supported these results and revealed that the KRG-treated groups recovered from renal injury and fibrosis. Furthermore, the autophagy marker, LC3, was upregulated, whereas p62 was downregulated. The levels of proteins related to the autophagy mechanism, such as ATG7, increased, while mammalian target of rapamycin (mTOR) decreased with the KRG treatment and exhibited accelerated autophagy compared to the STZ alone group. CONCLUSIONS KRG can suppress renal inflammation, injury, and fibrosis by blocking TGF-β1 activation and can induce cellular autophagy. Therefore, this study strongly suggests that KRG exhibits a renoprotective effect against the STZ-induced DKD.
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Affiliation(s)
- Shanika Karunasagara
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Geum-Lan Hong
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Se-Ra Park
- Samsung Biomedical Research Institute, Seoul, 06351, Republic of Korea
| | - Na-Hyun Lee
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Da-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Tae-Won Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea.
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Hong GL, Park SR, Jung DY, Karunasagara S, Lee KP, Koh EJ, Cho K, Park SS, Jung JY. The therapeutic effects of Stauntonia hexaphylla in benign prostate hyperplasia are mediated by the regulation of androgen receptors and 5α-reductase type 2. J Ethnopharmacol 2020; 250:112446. [PMID: 31812646 DOI: 10.1016/j.jep.2019.112446] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 12/02/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Stauntonia hexaphylla (Lardizabalaceae, S. hexaphylla) is traditionally used as a folk remedy for alleviating fever and for its anti- inflammatory and analgesic properties. In Korea and China, S. hexaphylla has been used as a traditional medicine that acts as diuretic and analgesic. S. hexaphylla has also been reported to inhibit osteoporosis and aldose reductase activity. AIM OF THE STUDY The study aimed to evaluate the therapeutic effects of an extract of S. hexaphylla on testosterone induced benign prostate hyperplasia (BPH) models and to observe its mechanism of action. MATERIALS AND METHODS To induce a BPH model in vitro and in vivo, a testosterone-treated LNCaP cell line and Sprague Dawley (SD) rats were used, respectively. Androgen receptors (ARs) and prostate-specific antigens (PSA), which are typical BPH-related proteins, were evaluated using western blotting. Prostate weights and dihydrotestosterone (DHT) levels were measured in vivo, and histopathology of the prostate examined using hematoxylin and eosin staining. Proliferating cell nuclear antigen (PCNA) and 5α-reductase type 2 were also evaluated via immunohistochemistry (IHC). In addition, TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) staining and LC3 staining of IHC were performed to evaluate apoptosis and autophagy. RESULTS S. hexaphylla reduced prostates weights and the thickness of prostate epithelial cells. In vivo and in vitro, PSA and ARs were downregulated following S. hexaphylla treatment. The S. hexaphylla extracts also reduced DHT and 5α-reductase type 2 expression. In addition, the expression of PCNA was reduced, and in the TUNEL staining and IHC of LC3, the number of positive cells was increased in the groups treated with S. hexaphylla. CONCLUSIONS It was observed that extracts of S. hexaphylla inhibited both 5α -reductase type 2 and ARs. The results indicate that the use of S. hexaphylla extract in BPH is probably beneficial through 5α-reductase inhibition and α-adrenergic receptor blockade. In addition, apoptosis and autophagy were induced, and PCNA was downregulated after S. hexaphylla treatment. Therefore, it can be concluded that S. hexaphylla has a therapeutic effect on BPH.
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Affiliation(s)
- Geum-Lan Hong
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Se-Ra Park
- Samsung Biomedical Research Institute, Seoul, 06351, Republic of Korea
| | - Da-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Shanika Karunasagara
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Kyu Pil Lee
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Eun-Jeong Koh
- Chong Kun Dang Healthcare Corp., Seoul, 07249, Republic of Korea
| | - Kyoungwon Cho
- Chong Kun Dang Healthcare Corp., Seoul, 07249, Republic of Korea
| | - Sung Sun Park
- Chong Kun Dang Healthcare Corp., Seoul, 07249, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, Republic of Korea.
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Hong GL, Kim KH, Karunasagara S, Jung JY. Variation in Autophagic Markers Expression of Rat Prostate Lobes in Testosterone-induced Benign Prostatic Hyperplasia. Histol Histopathol 2020. [DOI: 10.7243/2055-091x-7-7] [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: 11/15/2022]
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20
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Kim E, Choi DL, Jung JY, Byun SH, Kim JD, Jwa EK, Kim TY, Kim DH, Kim JH. Shift in Sympathovagal Balance Toward Parasympathetic Predominance Is Associated With Attenuation of Portal Hyperperfusion in Cirrhotic Recipients Undergoing Living Donor Liver Transplant. Transplant Proc 2019; 51:1511-1515. [PMID: 31155184 DOI: 10.1016/j.transproceed.2019.01.117] [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] [Received: 12/14/2018] [Accepted: 01/28/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND The autonomic innervation to a liver graft remains lost up to 1 year after liver transplant. Therefore, we investigated the effects of recipients' autonomic nervous activity on the extent of portal hyperperfusion of a partial liver graft in the absence of the autonomic innervation. METHODS A total of 31 cirrhotic recipients undergoing right lobe living donor liver transplant were analyzed. Following a 10-minute absence of surgical stimulation after hepatic artery and bile duct reconstruction, the electrocardiogram and blood pressure waveforms were recorded for 5 minutes. Low-frequency (LF) and high-frequency (HF) powers and their ratio (LF/HF) were calculated using fast Fourier transform from the electrocardiogram waveform. A decrease in LF/HF represents a shift in sympathovagal balance toward parasympathetic predominance. Then, portal venous (PVF) and hepatic arterial (HAF) blood flows were measured in mL/min per 100 g of liver weight using spectral Doppler ultrasonography. A decrease in their ratio (PVF/HAF) represents attenuation of portal hyperperfusion. RESULTS The medians of the PVF and HAF were 349 and 27 mL/min/100 g liver weight with interquartile ranges of 272 to 617 mL/min/100 g liver weight and 22 to 41 mL/min/100 g liver weight, respectively, yielding a median of the PVF/HAF of 13.7 (interquartile range, 8.5-21.3). The median of LF/HF was 0.67 (interquartile range, 0.16-1.45). With a reduction in LF/HF, PVF/HAF decreased according to an S-curve regression model between them (PVF/HAF=e2.743+-0.031LF/HF,adjustedR2=0.129,P=0.027). CONCLUSION A shift in sympathovagal balance toward parasympathetic predominance is associated with attenuation of portal hyperperfusion in a partial liver graft.
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Affiliation(s)
- E Kim
- Department of Anesthesiology and Pain Medicine, Hanyang University Medical Center, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - D L Choi
- Division of Hepatobiliary Pancreas Surgery and Abdominal Organ Transplantation, Department of Surgery, School of Medicine, Daegu Catholic University, Daegu, Republic of Korea
| | - J Y Jung
- Department of Anesthesiology and Pain Medicine, School of Medicine, Daegu Catholic University, Daegu, Republic of Korea
| | - S H Byun
- Department of Anesthesiology and Pain Medicine, School of Medicine, Daegu Catholic University, Daegu, Republic of Korea
| | - J D Kim
- Division of Hepatobiliary Pancreas Surgery and Abdominal Organ Transplantation, Department of Surgery, School of Medicine, Daegu Catholic University, Daegu, Republic of Korea
| | - E K Jwa
- Division of Hepatobiliary Pancreas Surgery and Abdominal Organ Transplantation, Department of Surgery, School of Medicine, Daegu Catholic University, Daegu, Republic of Korea
| | - T Y Kim
- Division of Acute Care Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - D H Kim
- Department of Anesthesiology and Pain Medicine, School of Medicine, Daegu Catholic University, Daegu, Republic of Korea
| | - J H Kim
- Department of Anesthesiology and Pain Medicine, School of Medicine, Daegu Catholic University, Daegu, Republic of Korea.
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Jeong BY, Park SR, Cho S, Yu SL, Lee HY, Park CG, Kang J, Jung DY, Park MH, Hwang WM, Yun SR, Jung JY, Yoon SH. TGF-β-mediated NADPH oxidase 4-dependent oxidative stress promotes colistin-induced acute kidney injury. J Antimicrob Chemother 2019; 73:962-972. [PMID: 29329393 DOI: 10.1093/jac/dkx479] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 11/17/2017] [Indexed: 11/14/2022] Open
Abstract
Background Colistin (polymyxin E) is an important constituent of the polymyxin class of cationic polypeptide antibiotics. Intrarenal oxidative stress can contribute to colistin-induced nephrotoxicity. Nicotinamide adenine dinucleotide 3-phosphate oxidases (Noxs) are important sources of reactive oxygen species. Among the various types of Noxs, Nox4 is predominantly expressed in the kidney. Objectives We investigated the role of Nox4 and benefit of Nox4 inhibition in colistin-induced acute kidney injury using in vivo and in vitro models. Methods Human proximal tubular epithelial (HK-2) cells were treated with colistin with or without NOX4 knockdown, or GKT137831 (most specific Nox1/4 inhibitor). Effects of Nox4 inhibition on colistin-induced acute kidney injury model in Sprague-Dawley rats were examined. Results Nox4 expression in HK-2 cells significantly increased following colistin exposure. SB4315432 (transforming growth factor-β1 receptor I inhibitor) significantly inhibited Nox4 expression in HK-2 cells. Knockdown of NOX4 transcription reduced reactive oxygen species production, lowered the levels of pro-inflammatory markers (notably mitogen-activated protein kinases) implicated in colistin-induced nephrotoxicity and attenuated apoptosis by altering Bax and caspase 3/7 activity. Pretreatment with GKT137831 replicated these effects mediated by downregulation of mitogen-activated protein kinase activities. In a rat colistin-induced acute kidney injury model, administration of GKT137831 resulted in attenuated colistin-induced acute kidney injury as indicated by attenuated impairment of glomerulus function, preserved renal structures, reduced expression of 8-hydroxyguanosine and fewer apoptotic cells. Conclusions Collectively, these findings identify Nox4 as a key source of reactive oxygen species responsible for kidney injury in colistin-induced nephrotoxicity and highlight a novel potential way to treat drug-related nephrotoxicity.
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Affiliation(s)
- Bo Young Jeong
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - Se-Ra Park
- Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, Daejeon, Korea
| | - Sungkwon Cho
- Division of Nephrology and Department of Internal Medicine, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon, Korea
| | - Seong-Lan Yu
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - Hoi Young Lee
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - Chang Gyo Park
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - Jaeku Kang
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - Da-Young Jung
- Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, Daejeon, Korea
| | - Moon Hyang Park
- Department of Pathology, College of Medicine, Konyang University, Daejeon, Korea
| | - Won-Min Hwang
- Division of Nephrology and Department of Internal Medicine, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon, Korea
| | - Sung-Ro Yun
- Division of Nephrology and Department of Internal Medicine, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon, Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, Daejeon, Korea
| | - Se-Hee Yoon
- Division of Nephrology and Department of Internal Medicine, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon, Korea
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Hwang IC, Kim AJ, Ro H, Jung JY, Chang JH, Lee HH, Chung W, Park YH. Changes in Bone Mineral Density After Kidney Transplantation. Transplant Proc 2018; 50:2506-2508. [PMID: 30316387 DOI: 10.1016/j.transproceed.2018.04.019] [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] [Received: 01/16/2018] [Revised: 03/22/2018] [Accepted: 04/06/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND Numerous studies have shown that osteoporosis is common in kidney transplant recipients. However, the change in bone mineral density after kidney transplantation (KT) is not fully understood. METHODS Thirty-nine kidney transplant recipients with bone densitometry at pretransplant and 24 months after KT were reviewed. RESULTS The recipients' median age (44.5 ± 10.7 years) and dialysis duration before KT (4.2 ± 3.4 years) were recorded. The T-scores of the lumbar spine and femur neck at 24 months after KT were positively associated with the respective pretransplant T-score (P < .001 in the lumbar spine and P < .001 in the femur neck). However, the T-score after KT did not show significant change (P = .680 in lumbar spine, P = .093 in femur neck). Changes in the T-scores of the lumbar spine and femur neck over 24 months (delta T-score) were negatively associated with the respective pretransplant T-scores (P = .001 in lumbar spine, P = .026 in femur neck). Changes in the T-scores of the lumbar spine and femur neck over 24 months (delta T-score) were also associated with the pretransplant T-scores after the adjustment of other variables. CONCLUSION The change of bone mineral density was related with pretransplant bone mineral density. Careful follow-up of bone densitometry for KT recipients was needed.
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Affiliation(s)
- I C Hwang
- Department of Medicine, Gachon University College of Medicine, Inchon, Republic of Korea
| | - A J Kim
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - H Ro
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea.
| | - J Y Jung
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - J H Chang
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - H H Lee
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - W Chung
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - Y H Park
- Department of Surgery, Gachon University Gil Medical Center, Inchon, Republic of Korea
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Jung HS, Kim MH, Shin JY, Park SR, Jung JY, Park WH. Electrospinning and wound healing activity of β-chitin extracted from cuttlefish bone. Carbohydr Polym 2018; 193:205-211. [PMID: 29773374 DOI: 10.1016/j.carbpol.2018.03.100] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [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: 10/31/2017] [Revised: 03/27/2018] [Accepted: 03/30/2018] [Indexed: 01/05/2023]
Abstract
A nanofibrous β-chitin web was fabricated via electrospinning for use as a novel wound dressing material. β-chitin was extracted from cuttlefish bone using deproteinization and demineralization. First, cuttlefish bone was alkali-treated to remove the proteins and was then treated with the acid for demineralization. The extracted β-chitin was dissolved in formic acid as solvent to evaluate its electrospinnability, and the electrospinnability increased remarkably when β-chitin was blended with poly(ethylene oxide) (PEO) than without. The blended β-chitin/PEO nanofibers had a fiber diameter of about 400 nm, and the diameter decreased after soaking in water to remove the PEO. The structural and physical properties of the β-chitin material and its nanofibers were characterized using Attenuated total reflectance infrared spectroscopy (ATR-IR), Proton nuclear magnetic resonance (1H NMR), Scanning electron microscopy/Energy dispersive spectroscopy (SEM/EDS), X-ray diffraction (XRD), texturometry, viscometry and contact angle measurements, and an animal test was conducted to investigate the wound healing effect. The β-chitin nanofibers were found to have great potential as nanomaterials for wound healing.
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Affiliation(s)
- Hyeong-Seop Jung
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon, 34134, South Korea
| | - Min Hee Kim
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon, 34134, South Korea
| | - Ji Youn Shin
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon, 34134, South Korea
| | - Se Ra Park
- Department of Veterinary Medicine, Chungnam National University, Daejeon, 43134, South Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine, Chungnam National University, Daejeon, 43134, South Korea.
| | - Won Ho Park
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon, 34134, South Korea.
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Kim AJ, Ro H, Chang JH, Jung JY, Chung WK, Park YH, Lee HH. Suspected Frequent Relapsing IgG4-related Lung Disease in Kidney Transplant Patient: A Case Report. Transplant Proc 2018; 50:2572-2574. [PMID: 30316401 DOI: 10.1016/j.transproceed.2018.02.197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 02/19/2018] [Indexed: 12/21/2022]
Abstract
Besides the initial description of IgG4-related pancreatic disease, other sites are now commonly involved. However, occurrence of IgG4-related disease is rare in organ transplanted patients. A 57-year-old man who received a kidney transplantation presented with recurrent dyspnea on exertion. A computed tomography scan of the chest revealed bilateral interlobular septal thickening and multiple tubular and branching small nodular lesions in the right upper lobe, and mass-like consolidation of the left middle lobe. Despite no elevation of serum IgG4 level, a percutaneous core needle biopsy on consolidative mass showed interstitial fibrosis and infiltration of IgG4-positive plasma cells to be more than > 20 per high power field. After treatment with glucocorticoids and rituximab, the consolidative mass of the left middle lobe disappeared.
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Affiliation(s)
- A J Kim
- Department of Internal Medicine, College of Medicine, Gachon University, Incheon, Korea
| | - H Ro
- Department of Internal Medicine, College of Medicine, Gachon University, Incheon, Korea
| | - J H Chang
- Department of Internal Medicine, College of Medicine, Gachon University, Incheon, Korea
| | - J Y Jung
- Department of Internal Medicine, College of Medicine, Gachon University, Incheon, Korea
| | - W K Chung
- Department of Internal Medicine, College of Medicine, Gachon University, Incheon, Korea
| | - Y H Park
- Department of Surgery, College of Medicine, Gachon University, Incheon, Korea
| | - H H Lee
- Department of Internal Medicine, College of Medicine, Gachon University, Incheon, Korea.
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Kim HA, Lee HS, Shin TH, Jung JY, Baek WY, Park HJ, Lee G, Paik MJ, Suh CH. Polyamine patterns in plasma of patients with systemic lupus erythematosus and fever. Lupus 2018; 27:930-938. [PMID: 29308729 DOI: 10.1177/0961203317751860] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 11/17/2022]
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease with various clinical manifestations and serologic markers. In this study, we analyzed nine polyamine (PA) profiles of plasma from patients with SLE and healthy controls (HCs), and the relationship between the PA profiles and disease activity. PA alterations in plasma of 44 patients with SLE and fever were investigated using gas chromatography mass spectrometry (GC-MS) in selected ion monitoring mode using N-ethoxycarbonyl/ N-pentafluoropropionyl derivatives, and compared with those of 43 HCs. Patients with SLE and HCs showed differences in five of nine PA profiles. Among five changed PA levels, four PAs, namely N1-acetylcadaverine, spermidine, N1-acetylspermidine, and spermine, were dramatically decreased. However, the level of cadaverine was increased in patients with SLE. In the partial correlation with PA profiles and disease activity markers of SLE, several disease activity markers and nutritional markers were correlated with cadaverine, spermidine, and N 8-acetylspermidine. Thus, our results provide a comprehensive understanding of the relationship between PA metabolomics and disease activity markers in patients with SLE.
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Affiliation(s)
- H A Kim
- 1 Department of Rheumatology and BK21 Division of Cell Transformation and Restoration, 37977 Ajou University School of Medicine , Suwon, Republic of Korea
| | - H S Lee
- 2 College of Pharmacy, 65380 Sunchon National University , Suncheon, Republic of Korea
| | - T H Shin
- 3 Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J Y Jung
- 1 Department of Rheumatology and BK21 Division of Cell Transformation and Restoration, 37977 Ajou University School of Medicine , Suwon, Republic of Korea
| | - W Y Baek
- 1 Department of Rheumatology and BK21 Division of Cell Transformation and Restoration, 37977 Ajou University School of Medicine , Suwon, Republic of Korea
| | - H J Park
- 3 Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - G Lee
- 3 Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - M J Paik
- 2 College of Pharmacy, 65380 Sunchon National University , Suncheon, Republic of Korea
| | - C H Suh
- 1 Department of Rheumatology and BK21 Division of Cell Transformation and Restoration, 37977 Ajou University School of Medicine , Suwon, Republic of Korea
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Kwon HH, Park HY, Choi SC, Bae Y, Jung JY, Park GH. Novel device-based acne treatments: comparison of a 1450-nm diode laser and microneedling radiofrequency on mild-to-moderate acne vulgaris and seborrhoea in Korean patients through a 20-week prospective, randomized, split-face study. J Eur Acad Dermatol Venereol 2017; 32:639-644. [PMID: 29178495 DOI: 10.1111/jdv.14714] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 11/08/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND While device-based acne treatments are widely applied for patients not tolerating conventional medications, related controlled studies have been still limited. Recently, non-ablative 1450-nm diode laser (DL) and fractional microneedling radiofrequency (FMR) have been effectively used for acne, in addition to well-recognized dermal remodelling effects. OBJECTIVE To compare the clinical course of acne treatment between DL and FMR. METHODS Twenty-five Korean patients with mild-to-moderate facial acne completed treatments with DL and FMR through a 20-week, randomized split-face study. One randomly assigned half side of each patient's face received DL and the other side by FMR. Treatments were scheduled to receive three consecutive sessions at 4-week intervals. Objective assessments including revised Leeds grades, lesion counts, sebum output measurements, and patients' subjective satisfaction were investigated. RESULTS Both DL and FMR demonstrated steady improvement of acne and seborrhoea during treatment sessions. While results between two devices were similar during treatment sessions, FMR was superior to DL in the 12-week follow-up. Patients' subjective assessments for seborrhoea improvement were similar between two devices, while those for acne, skin texture, and acne scars were more satisfactory for FMR. For safety profile, no significant difference was observed between two regimens, while mild postinflammatory hyperpigmentation was observed only in DL side. CONCLUSION Both DL and FMR demonstrated efficacies for acne and seborrhoea, with reasonable safety profile. FMR was more effective than DL for the long-term maintenance, and subjective assessments for texture and scar improvements. Therefore, a few sessions of these devices would be a viable option for acne treatments.
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Affiliation(s)
- H H Kwon
- Oaro Dermatology Clinic, Seoul, Korea
| | - H Y Park
- Oaro Dermatology Clinic, Seoul, Korea
| | - S C Choi
- Oaro Dermatology Clinic, Seoul, Korea
| | - Y Bae
- Department of Dermatology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - J Y Jung
- Oaro Dermatology Clinic, Seoul, Korea
| | - G-H Park
- Department of Dermatology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
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Kim MH, Park H, Nam HC, Park SR, Jung JY, Park WH. Injectable methylcellulose hydrogel containing silver oxide nanoparticles for burn wound healing. Carbohydr Polym 2017; 181:579-586. [PMID: 29254010 DOI: 10.1016/j.carbpol.2017.11.109] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/28/2017] [Accepted: 11/28/2017] [Indexed: 11/19/2022]
Abstract
A thermo-sensitive methylcellulose (MC) hydrogel containing silver oxide nanoparticles (NPs) was prepared via one-pot synthesis in which a silver acetate precursor salt (CH3COOAg) induces a salt-out effect in the MC solution. The silver oxide NPs were synthesized in situ from Ag+ ions during the MC hydrogelation, and the residual CH3COO- ions decreased the gelation temperature of the MC solution through the salt-out effect. The gelation behavior of the MC solution varied according to the CH3COOAg content and was monitored. Also, the formation and structure of the silver oxide NPs in the MC hydrogel was confirmed. From the results, silver oxide NPs was successfully incorporated in MC hydrogels, simultaneously, acetate ion which was counter ion of Ag was affected gelation behavior of Ag. Finally, the antimicrobial activity and wound healing effect was examined using the shaking flask method and burn wound test, respectively. The MC hydrogel with silver oxide NPs showed excellent antimicrobial activity and burn wound healing. Therefore, this thermo-responsive MC hydrogel has great potential as an injectable hydrogel for wound regeneration.
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Affiliation(s)
- Min Hee Kim
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon 34134, South Korea
| | - Hanna Park
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon 34134, South Korea
| | - Hyung Chan Nam
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon 34134, South Korea
| | - Se Ra Park
- Department of Veterinary Medicine, Chungnam National University, Daejeon 43134, South Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine, Chungnam National University, Daejeon 43134, South Korea.
| | - Won Ho Park
- Department of Advanced Organic Materials and Textile Engineering System, Chungnam National University, Daejeon 34134, South Korea.
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Lee JH, Park SK, Ryoo JH, Oh CM, Choi JM, McIntyre RS, Mansur RB, Kim H, Hales S, Jung JY. U-shaped relationship between depression and body mass index in the Korean adults. Eur Psychiatry 2017; 45:72-80. [PMID: 28738292 DOI: 10.1016/j.eurpsy.2017.05.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 12/05/2016] [Revised: 05/11/2017] [Accepted: 05/22/2017] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Although a number of studies have examined the relationship between depression and obesity, it is still insufficient to establish the specific pattern of relationship between depression and body mass index (BMI) categories. Thus, this study was aimed to investigate the relationship between depression and BMI categories. METHODS A cross-sectional study was conducted for a cohort of 159,390 Korean based on Kangbuk Samsung Health Study (KSHS). Study participants were classified into 5 groups by Asian-specific cut-off of BMI (18.5, 23, 25 and 30kg/m2). The presence of depression was determined by Center for Epidemiologic Studies-Depression scales (CES-D)≥16 and≥25. The adjusted odd ratios (ORs) for depression were evaluated by multiple logistic regression analysis, in which independent variable was 5 categories of BMI and dependent variable was depression. Subgroup analysis was conducted by gender and age. RESULTS When normal group was set as a reference, the adjusted ORs for depression formed U-shaped pattern of relationship with BMI categories [underweight: 1.31 (1.14-1.50), overweight: 0.94 (0.85-1.04), obese group: 1.01 (0.91-1.12), severe obese group: 1.28 (1.05-1.54)]. This pattern of relationship was more prominent in female and young age group than male and elderly subgroup. BMI level with the lowest likelihood of depression was 18.5kg/m2 to 25kg/m2 in women and 23kg/m2 to 25kg/m2 in men. CONCLUSIONS There was a U-shaped relationship between depression and BMI categories. This finding suggests that both underweight and severe obesity are associated with the increased risk for depression.
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Affiliation(s)
- J-H Lee
- Department of Psychiatry, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea; Department of Psychiatry, University of Toronto, Ontario, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Ontario, Canada
| | - S K Park
- Cohort Team, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of medicine, Seoul, Korea
| | - J-H Ryoo
- Departments of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul, Korea
| | - C-M Oh
- Departments of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul, Korea
| | - J-M Choi
- Departments of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul, Korea
| | - R S McIntyre
- Department of Psychiatry, University of Toronto, Ontario, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Ontario, Canada; Department of Pharmacology, University of Toronto, Ontario, Canada
| | - R B Mansur
- Department of Psychiatry, University of Toronto, Ontario, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Ontario, Canada
| | - H Kim
- Department of Psychiatry, University of Toronto, Ontario, Canada
| | - S Hales
- Department of Psychiatry, University of Toronto, Ontario, Canada; Department of Supportive Care, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - J Y Jung
- Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University, School of medicine, Seoul, Korea.
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Choi SA, Shim HS, Jung JY, Kim HJ, Kim SH, Byun JY, Park MS, Yeo SG. Association between recovery from Bell's palsy and body mass index. Clin Otolaryngol 2017; 42:687-692. [PMID: 27886463 DOI: 10.1111/coa.12801] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although many factors have been found to be involved in recovery from Bell's palsy, no study has investigated the association between recovery from Bell's palsy and obesity. This study therefore evaluated the association between recovery from Bell's palsy and body mass index (BMI). METHODS Subjects were classified into five groups based on BMI (kg/m2 ). Demographic and clinical characteristics were compared among these groups. Assessed factors included sex, age, time from paralysis to visiting a hospital, the presence of comorbidities such as diabetes mellitus and hypertension, degree of initial facial nerve paralysis by House-Brackmann (H-B) grade and neurophysiological testing, and final recovery rate. RESULTS Based on BMI, 37 subjects were classified as underweight, 169 as normal weight, 140 as overweight, 155 as obese and 42 as severely obese. Classification of the degree of initial facial nerve paralysis as moderate or severe, according to H-B grade and electroneurography, showed no difference in severity of initial facial paralysis among the five groups (P > 0.05). However, the final recovery rate was significantly higher in the normal weight than in the underweight or obese group (P < 0.05). CONCLUSIONS Obesity or underweight had no effect on the severity of initial facial paralysis, but the final recovery rate was lower in the obese and underweight groups than in the normal group.
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Affiliation(s)
- S A Choi
- Department of Otorhinolaryngology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - H S Shim
- Department of Anesthesiology and Pain Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - J Y Jung
- Department of Anatomy, School of Medicine, Kyung Hee University, Seoul, Korea
| | - H J Kim
- Department of Otorhinolaryngology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - S H Kim
- Department of Otorhinolaryngology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - J Y Byun
- Department of Otorhinolaryngology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - M S Park
- Department of Otorhinolaryngology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - S G Yeo
- Department of Otorhinolaryngology, School of Medicine, Kyung Hee University, Seoul, Korea
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Shin HK, Kim TW, Kim YJ, Park SR, Seo CS, Ha H, Jung JY. Protective Effects of Dendrobium nobile against Cisplatin Nephrotoxicity Both In-vitro and In-vivo. Iran J Pharm Res 2017; 16:197-206. [PMID: 29844791 PMCID: PMC5963661] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Dendrobium genus was reported to contain alkaloid, bibenzyl, fluorenone, phenanthrene, sesquiterpenoid, and phenolic acid, which have biological properties. Our aim was to investigate the protective effect of an aqueous extract of Dendrobium nobile Lindl (DNE) against cisplatin-induced acute kidney injury (AKI). Quantification of four phenolic acids (4-hydroxybenzoic, vanillic, syringic, and ferulic acid) in DNE was determined using the HPLC-photodiode array method. Possible protective effects against cisplatin-induced nephrotoxicity were investigated using in-vitro (porcine kidney cells; PK15) and in-vivo (Sprague Dawley rat) studies. Among the four phenolic acids, 4-hydroxybenzoic acid was the most abundant. In the in-vitro study, DNE pretreatment partially prevented decrement of viability after cisplatin (15 μg/mL) treatment in the both the MTT and crystal violet assays. Moreover, relative to cells treated with cisplatin alone, the DNE (50 μg/mL)-pretreated cells showed a ~30% increase in glutathione levels and a ~15% decrease in reactive oxygen species. The expression of p53 was also decreased in DNE-pretreated cells (p < 0.05). In the in-vivo study, the renal function index decreased to normal levels in groups pretreated with DNE (300 and 500 mg/kg); histopathological alterations and apoptotic cells were also attenuated. Moreover, DNE pretreatment ameliorated oxidative stress in the kidney, as evidenced by recovered antioxidant enzyme levels and decreased lipid peroxidation. DNE, by decreasing oxidative stress, was found to have a protective effect against cisplatin-induced nephrotoxicity. Based on these findings, DNE might be beneficial when treating cisplatin-induced AKI.
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Affiliation(s)
- Hyeun-Kyoo Shin
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, Yusung- gu, Daejeon, South Korea.,
| | - Tae-Won Kim
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Yusung-gu, Daejeon, South Korea.,
| | - Young-Jung Kim
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Yusung-gu, Daejeon, South Korea.
| | - So-Ra Park
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Yusung-gu, Daejeon, South Korea.
| | - Chang-Seob Seo
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, Yusung- gu, Daejeon, South Korea.
| | - Hyekyung Ha
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, Yusung- gu, Daejeon, South Korea.
| | - Ju-Young Jung
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Yusung-gu, Daejeon, South Korea.
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Kim TW, Kim YJ, Kim HT, Park SR, Lee MY, Park YD, Lee CH, Jung JY. NQO1 Deficiency Leads Enhanced Autophagy in Cisplatin-Induced Acute Kidney Injury Through the AMPK/TSC2/mTOR Signaling Pathway. Antioxid Redox Signal 2016; 24:867-83. [PMID: 26935540 DOI: 10.1089/ars.2015.6386] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
AIMS Recent studies have revealed that autophagy is induced under various disease conditions; however, the role of autophagy in pathological states is controversial. NAD(P)H quinone oxidoreductase 1 (NQO1) is a highly inducible cytoprotective gene that regulates reactive oxygen species (ROS) generation. In this study, we examined whether NQO1 deficiency affects the autophagy process in response to cisplatin-induced nephrotoxicity. RESULTS In vitro, NQO1 and autophagy-associated proteins were induced after cisplatin treatment and the autophagosomes markedly increased in the cisplatin-treated NQO1-knockdown ACHN cells together with increased ROS production. In vivo, NQO1-KO mice displayed a significant increase in cisplatin-induced acute kidney injury (AKI), as indicated by elevated tubular damage and apoptosis as well as by suppressed cytoprotective signals. In agreement with the in vitro findings, NQO1-KO cisplatin-treated mice displayed a notable increase in autophagy-associated protein expression compared with their wild-type counterparts. Meanwhile, the expression of Ras-related protein 7, which participates in autophagosome maturation and lysosome fusion, markedly decreased in NQO1-KO mice, indicating hampered progress in late autophagy, and was accompanied by increased p62 protein expression. Moreover, NQO1 deletion enhanced the effect of the mammalian target of the rapamycin inhibitor, rapamycin, and led to enhanced tuberous sclerosis complex 2 phosphorylation through AMP-activated protein kinase activation. INNOVATION AND CONCLUSION These results indicate that autophagy may be enhanced to counter the increased stress due to NQO1 deficiency, an oxidative stress barrier. The present results demonstrate the significant influence of NQO1 on the autophagy process and support the hypothesis that autophagy plays a protective role under oxidative stress conditions. Antioxid. Redox Signal. 24, 867-883.
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Affiliation(s)
- Tae-Won Kim
- 1 Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University , Daejeon, Republic of Korea
| | - Young-Jung Kim
- 1 Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University , Daejeon, Republic of Korea
| | - Hyun-Tae Kim
- 1 Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University , Daejeon, Republic of Korea
| | - Se-Ra Park
- 1 Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University , Daejeon, Republic of Korea
| | - Mee-Young Lee
- 2 Herbal Medicine Formulation Research Group, Korea Institute of Oriental Medicine , Daejeon, Republic of Korea
| | - Yong-Deok Park
- 3 Department of Biomedical Science, Youngdong University , Yeongdong, Republic of Korea
| | - Chul-Ho Lee
- 4 Laboratory Animal Center, Korea Research Institute of Bioscience and Biotechnology , Daejeon, Republic of Korea
| | - Ju-Young Jung
- 1 Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University , Daejeon, Republic of Korea
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Jung JY, Woo SM, Kim WJ, Lee BN, Nör JE, Min KS, Choi CH, Koh JT, Lee KJ, Hwang YC. Simvastatin inhibits the expression of inflammatory cytokines and cell adhesion molecules induced by LPS in human dental pulp cells. Int Endod J 2016; 50:377-386. [PMID: 27003335 DOI: 10.1111/iej.12635] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [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: 04/22/2015] [Accepted: 03/17/2016] [Indexed: 11/30/2022]
Abstract
AIM To investigate the effect of simvastatin on lipopolysaccharide (LPS)-stimulated inflammatory cytokines, cell adhesion molecules and nuclear factor-κB (NF-κB) transcription factors in human dental pulp cells (HDPCs). METHODOLOGY The effect of LPS and simvastatin on human dental pulp cell (HDPCs) viability was measured using a 3-[4, 5-dimethylthiazol-2-yl]-2, 5 diphenyltetrazolium bromide (MTT) assay. The expression of inflammatory cytokines and cell adhesion molecules was evaluated by reverse-transcription polymerase chain reaction (RT-PCR), enzyme-linked immunosorbent assay (ELISA) and Western blot analysis. NF-κB transcription factors were evaluated by Western blot analysis. Statistical analysis was performed with analysis of variance (anova). RESULTS The viability of cells exposed to different concentrations of E. coli LPS, P. gingivalis LPS and simvastatin was not significantly different compared with that of control cells (P > 0.05). LPS significantly increased interleukin (IL)-1β (P < 0.05) and IL-6 mRNA expression (P < 0.05) and vascular cell adhesion molecule-1 (VCAM-1) (P < 0.05) and intercellular adhesion molecule-1 (ICAM-1) protein expression (P < 0.05) in HDPCs. Treatment with simvastatin significantly attenuated LPS-stimulated production of IL-1β, IL-6, VCAM-1 and ICAM-1 (P < 0.05). Treatment with simvastatin decreased LPS-induced expression of p65 and phosphorylation of IκB and also significantly decreased the phosphorylation of p65 and IκB in the cytoplasm and the level of p65 in the nucleus (P < 0.05). CONCLUSIONS Simvastatin has a suppressing effect on LPS-induced inflammatory cytokine, cell adhesion molecules and NF-κB transcription factors in HDPCs. Therefore, simvastatin might be a useful candidate as a pulp-capping agent in vital pulp therapy.
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Affiliation(s)
- J Y Jung
- Department of Physiology, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - S M Woo
- Department of Physiology, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - W J Kim
- Department of Physiology, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea.,Research Center for Biomineralization Disorders, Chonnam National University, Gwangju, Korea
| | - B N Lee
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - J E Nör
- Angiogenesis Research Laboratory, Department of Cariology, Restorative Sciences, Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - K S Min
- Department of Conservative Dentistry, School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - C H Choi
- Department of Preventive and Public Health Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - J T Koh
- Research Center for Biomineralization Disorders, Chonnam National University, Gwangju, Korea
| | - K J Lee
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Y C Hwang
- Research Center for Biomineralization Disorders, Chonnam National University, Gwangju, Korea.,Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
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Kim TW, Kim YJ, Seo CS, Kim HT, Park SR, Lee MY, Jung JY. Elsholtzia ciliata (Thunb.) Hylander attenuates renal inflammation and interstitial fibrosis via regulation of TGF-ß and Smad3 expression on unilateral ureteral obstruction rat model. Phytomedicine 2016; 23:331-9. [PMID: 27002403 DOI: 10.1016/j.phymed.2016.01.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 12/18/2015] [Accepted: 01/13/2016] [Indexed: 05/21/2023]
Abstract
BACKGROUND Renal interstitial fibrosis is characterized by excessive accumulation of extracellular matrix, which leads to end-stage renal failure. PURPOSE The aim of this study was to explore the effect of Elsholtzia ciliata (Thunb.) Hylander ethanol extract (ECE) on renal interstitial fibrosis induced by unilateral ureteral obstruction (UUO). STUDY DESIGN After quantitative analysis of ECE using the high performance liquid chromatography-photodiode array (HPLC-PDA) method, an in vitro study was performed to assess the anti-inflammatory and anti-fibrotic effects of ECE, using lipopolysaccharide (LPS) and transforming growth factor-ß (TGF-ß), respectively. METHODS For in vivo study, all male Sprague Dawley (SD) rats (n=10/group), except for those in the control group, underwent UUO. The rats were orally treated with water (control), captopril (positive control, 200 mg/kg), and ECE (300 and 500 mg/kg) for 14 days. RESULTS In ECE, luteolin and rosmarinic acid were relatively abundant among the other flavonoids and phenolic acids. ECE treatment ameliorated LPS-induced overexpression of nuclear factor-κB, tumor necrosis factor (TNF-α), and interleukin-6 and improved oxidative stress in RAW 264.7 cells. Furthermore, ECE treatment suppressed TGF-ß-induced α-smooth muscle actin and matrix metalloproteinase 9 expression in human renal mesangial cells. In the UUO model, 14 consecutive days of ECE treatment improved UUO-induced renal damage and attenuated histopathological alterations and interstitial fibrosis. Moreover, the renal expression of TNF-α, TGF-ß, and Smad 3 were inhibited by ECE treatment. CONCLUSION Taken together, the effects of ECE may be mediated by blocking the activation of TGF-ß and inflammatory cytokines, leading subsequently to degradation of the ECM accumulation pathway. Based on these findings, ECE might serve as an improved treatment strategy for renal fibrotic disease.
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Affiliation(s)
- Tae-Won Kim
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Young-Jung Kim
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Chang-Seob Seo
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
| | - Hyun-Tae Kim
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Se-Ra Park
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Mee-Young Lee
- Herbal Medicine Formulation Research Group, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
| | - Ju-Young Jung
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 305-764, Republic of Korea.
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Kim TW, Lee DR, Choi BK, Kang HK, Jung JY, Lim SW, Yang SH, Suh JW. Hepatoprotective effects of polymethoxyflavones against acute and chronic carbon tetrachloride intoxication. Food Chem Toxicol 2016; 91:91-9. [PMID: 26980244 DOI: 10.1016/j.fct.2016.03.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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: 11/23/2015] [Revised: 02/16/2016] [Accepted: 03/07/2016] [Indexed: 12/11/2022]
Abstract
In the present study, we explore the protective effects of Citrus aurantium L. extract (CAE) against acute and chronic CCl4-induced hepatotoxicity. The quantitative analysis of CAE was performed using HPLC-UV to determine the nobiletin content was approximately 27%. For the acute model, the male ICR mice were orally treated with water, silymarin (positive control, 200 mg/kg) and CAE (50 and 200 mg/kg) for 3 days prior to CCl4 (1 mL/kg, 50% v/v in olive oil) IP injection. For the chronic model (n = 6/group), the mice were treated with each treatment for 28 consecutive days and CCl4 (1 mL/kg, 20%) was injected twice a week. In both the acute and chronic models, the CCl4 alone treated group showed histopathologic alterations with a significantly increase in serum hepatic enzyme levels together with a disrupted anti-oxidative status. In contrast, the CAE treatments restored pathologic alterations and recovered the oxidative status by enhancing antioxidant enzymes and reducing lipid peroxidation levels. Furthermore, CAE enhanced nuclear factor E2-related factor 2 (Nrf2) and its related cytoprotective signals, including NAD(P)H quinone oxidoreductase 1, UDP-glucuronosyltransferase, and γ-glutamylcysteine synthetase. Taken together, the present study demonstrates that CAE exerts a protective effect against CCl4-induced hepatotoxicity with its anti-oxidant, anti-inflammatory, and anti-apoptotic activity.
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Affiliation(s)
- Tae-Won Kim
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Yusung-gu, Daejeon, 305-764, South Korea
| | | | | | - Hwan-Kyu Kang
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Yusung-gu, Daejeon, 305-764, South Korea
| | - Ju-Young Jung
- College of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Yusung-gu, Daejeon, 305-764, South Korea
| | - Seol-Wa Lim
- Graduate School of Biomedicine & Health Sciences, Catholic University, Seocho-gu, Seoul, 06591, South Korea
| | - Seung Hwan Yang
- Center for Nutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi, 449-728, South Korea.
| | - Joo-Won Suh
- Center for Nutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi, 449-728, South Korea.
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Kim YJ, Kim TW, Park SR, Kim HT, Jung DY, Ryu SY, Jung JY. Deletion of NAD(P)H:quinone oxidoreductase 1 represses Mre11-Rad50-Nbs1 complex protein expression in cisplatin-induced nephrotoxicity. Toxicol Lett 2016; 243:22-30. [PMID: 26723870 DOI: 10.1016/j.toxlet.2015.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 12/13/2015] [Accepted: 12/21/2015] [Indexed: 01/02/2023]
Abstract
The Mre11, Rad50, and Nbs1 (MRN) complex is a DNA double-strand break sensor involved in DNA damage repair. Herein, we explored whether deletion of NAD(P)H quinone oxidoreductase 1 (NQO1), a cytoprotective gene, affected MRN complex expression in the kidney after cisplatin-induced acute kidney injury (AKI). In vitro, cisplatin increased the expression of MRN complex proteins and NQO1 in NQO1-expressing ACHN cells in a time- and concentration-dependent manner. The expression of MRN complex proteins was relatively inhibited in NQO1-knockdown cells. In vivo, increased expression of renal MRN complex proteins was accompanied by upregulation of γ-H2A histone member X, a DNA damage marker, in cisplatin-treated wild-type mice. Although the NQO1-knockout (NQO1(-/-)) mice showed more severe cisplatin-induced renal damage, the renal expression of MRN complex proteins was lower than in NQO1-expressing mice; expression of poly[ADP-ribose] polymerase 1, which promotes MRN complex accumulation, was also lower in these animals. In addition, cisplatin-induced expression of DNA damage repair-related proteins, ataxia telangiectasia mutated and sirtuin1, markedly decreased in the NQO1(-/-) group, relative to the NQO1-expressing mice. These findings suggest that NQO1 deletion might be associated with decreased MRN complex expression, which might be partially responsible for the exacerbation of cisplatin-induced AKI in the absence of NQO1.
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Affiliation(s)
- Young-Jung Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Tae-Won Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - So-Ra Park
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Hyun-Tae Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Da-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Si-Yun Ryu
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon 305-764, Republic of Korea.
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Lee SH, Lee JM, Kim CY, Park MS, Park BH, Jung WJ, Kim SY, Kim EY, Jung JY, Kang YA, Kim YS, Kim SK, Chang J, Chung KS. Prognostic implications of serum lipid metabolism over time during sepsis. Intensive Care Med Exp 2015. [PMCID: PMC4798139 DOI: 10.1186/2197-425x-3-s1-a226] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Lee SW, Kim HJ, Yoo KH, Park YB, Park JY, Jung JY, Moon JY, Byun MK, Kim SW, Kim YH. Long-acting anticholinergic agents in patients with uncontrolled asthma: a systematic review and meta-analysis. Int J Tuberc Lung Dis 2015; 18:1421-30. [PMID: 25517806 DOI: 10.5588/ijtld.14.0275] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING A novel effective treatment is necessary for severe asthma. OBJECTIVE To review clinical trials examining the role of tiotropium in patients with poorly controlled asthma despite inhaled corticosteroid use with or without long-acting β₂-agonists. DESIGN A computerised search of electronic databases (Medline, EMBASE and Cochrane Central Register) was performed. Randomised controlled trials of at least a 4-week treatment duration with findings published in English were included. RESULTS Five studies involving 1635 patients were analysed. Compared with a placebo or a double dose of inhaled corticosteroids, the addition of tiotropium increased mean trough and peak forced expiratory volume in 1 second by 97 ml (95%CI 71-122) and 103 ml (95%CI 42-163), respectively. The mean differences in morning peak expiratory flow were 19.2 l/min (95%CI 11.8-26.6). Tiotropium also reduced the risk of severe acute exacerbation (OR 0.73, 95%CI 0.56-0.96) and improved Asthma Quality-of-Life Questionnaire score significantly by 0.10 (95%CI 0.04-0.16). There were no differences in serious adverse events. CONCLUSION The addition of tiotropium may be beneficial for patients with poorly controlled asthma, although exacerbation or safety issues should be clarified in long-term trials before its wide use in asthma.
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Affiliation(s)
- S W Lee
- Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H J Kim
- Institute for Evidence-based Medicine, Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - K H Yoo
- Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea
| | - Y B Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
| | - J-Y Park
- Department of Pulmonology and Critical Care Medicine, Won Kwang University Sanbon Hospital, Sanbon, Korea
| | - J Y Jung
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University, College of Medicine, Seoul, Korea
| | - J-Y Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - M K Byun
- Division of Pulmonology, Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S W Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Ewha Medical Center and Ewha Medical Research Institute, Ewha Womans University, School of Medicine, Mokdong Hospital, Seoul, Korea
| | - Y H Kim
- Department of Pulmonary and Critical Care Medicine, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea
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Choi BK, Kim TW, Lee DR, Jung WH, Lim JH, Jung JY, Yang SH, Suh JW. A polymethoxy flavonoids-rich Citrus aurantium
extract ameliorates ethanol-induced liver injury through modulation of AMPK and Nrf2-related signals in a binge drinking mouse model. Phytother Res 2015; 29:1577-84. [DOI: 10.1002/ptr.5415] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 06/01/2015] [Accepted: 06/18/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Bong-Keun Choi
- NutraPham Tech; Giheung-gu, Yongin Gyeonggi 446-916 Korea
| | - Tae-Won Kim
- College of Veterinary Medicine and Institute of Veterinary Science; Chungnam National University; Yusung-gu Daejeon 305-764 Republic of Korea
| | - Dong-Ryung Lee
- NutraPham Tech; Giheung-gu, Yongin Gyeonggi 446-916 Korea
| | - Woon-Ha Jung
- College of Veterinary Medicine and Institute of Veterinary Science; Chungnam National University; Yusung-gu Daejeon 305-764 Republic of Korea
| | - Jong-Hwan Lim
- Center for Nutraceutical and Pharmaceutical Materials; Myongji University; Yongin Gyeonggi 449-728 Republic of Korea
| | - Ju-Young Jung
- College of Veterinary Medicine and Institute of Veterinary Science; Chungnam National University; Yusung-gu Daejeon 305-764 Republic of Korea
| | - Seung Hwan Yang
- Center for Nutraceutical and Pharmaceutical Materials; Myongji University; Yongin Gyeonggi 449-728 Republic of Korea
| | - Joo-Won Suh
- Center for Nutraceutical and Pharmaceutical Materials; Myongji University; Yongin Gyeonggi 449-728 Republic of Korea
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Kim YJ, Kim TW, Park SR, Kim HT, Ryu SY, Jung JY. Expression of the Mre11-Rad50-Nbs1 complex in cisplatin nephrotoxicity. Environ Toxicol Pharmacol 2015; 40:12-17. [PMID: 26056972 DOI: 10.1016/j.etap.2015.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 04/22/2015] [Accepted: 04/28/2015] [Indexed: 06/04/2023]
Abstract
The aim of this study was to explore whether the Mre11, Rad50, and Nbs1 (MRN) complex is associated with DNA repair mechanisms in cisplatin-induced acute renal failure. Rats were randomly allocated into three groups: control, sacrificed 5 days (5D), and 10 days (10D) after 5mg/kg of cisplatin injection. The 5D group showed disrupted renal function together with enhanced MRN complex- and DNA repair-related protein expression. Meanwhile, in the 10D group, recovery from cisplatin-induced damage was accompanied by the reduced MRN expression, although the expression was still distinctive in proximal tubular cells and higher than the control group. Moreover, pretreatment with mirin, an MRN complex inhibitor, decreased cell viability and inhibited proliferating cell nuclear antigen expression in cisplatin-treated human embryonic kidney 293 cells. Taken together, cisplatin treatment could trigger the MRN complex expression in the kidney and inhibition of the complex might aggravate damage recovery processes.
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Affiliation(s)
- Young-Jung Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon 305-764, Republic of Korea
| | - Tae-Won Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon 305-764, Republic of Korea
| | - So-Ra Park
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon 305-764, Republic of Korea
| | - Hyun-Tae Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon 305-764, Republic of Korea
| | - Si-Yun Ryu
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon 305-764, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon 305-764, Republic of Korea.
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Kim TW, Kim YJ, Kim HT, Park SR, Jung JY. β-Lapachone enhances Mre11-Rad50-Nbs1 complex expression in cisplatin-induced nephrotoxicity. Pharmacol Rep 2015; 68:27-31. [PMID: 26721347 DOI: 10.1016/j.pharep.2015.06.007] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 06/15/2015] [Accepted: 06/15/2015] [Indexed: 01/22/2023]
Abstract
BACKGROUND Recent studies suggest a potential involvement of the Mre11-Rad50-Nbs1 (MRN) complex, a DNA double-strand breaks (DSBs) sensor, in the development of nephrotoxicity following cisplatin administration. β-Lapachone is a topoisomerase I inhibitor known to reduce cisplatin-induced nephrotoxicity. In this study, by assessing MRN complex expression, we explored whether β-lapachone was involved in DNA damage response in the context of cisplatin-induced nephrotoxicity. METHODS Male Balb/c mice were randomly allocated to 4 groups: control, β-lapachone alone, cisplatin alone, and β-lapachone+cisplatin. β-Lapachone was administered with the diet (0.066%) for 2 weeks prior to cisplatin injection (18mg/kg). All mice were sacrificed 3 days after cisplatin treatment. RESULTS In the cisplatin-alone group, renal function was disrupted and MRN complex expression increased. As expected, β-lapachone co-treatment attenuated cisplatin-induced pathologic alterations. Notably, although β-lapachone markedly decreased cisplatin-induced renal cell apoptosis and DSBs formation, the β-lapachone+cisplatin group showed the highest MRN complex expression. Moreover, β-lapachone treatment increased the basal expression level of the MRN complex, which was accompanied by enhanced basal expression of SIRTuin1, which is known to regulate Nbs1 acetylation. CONCLUSION Although, it remains unclear how β-lapachone induces MRN complex expression, our findings suggest that β-lapachone might affect MRN complex expression and participate in DNA damage recovery in cisplatin-induced nephrotoxicity.
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Affiliation(s)
- Tae-Won Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Young-Jung Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Hyun-Tae Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Se-Ra Park
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, Republic of Korea.
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Ryu TH, Jung JY, Choi DL, Han YS, Kim JD, Kim JH. Optimal central venous pressure during the neohepatic phase to decrease peak portal vein flow velocity for the prevention of portal hyperperfusion in patients undergoing living donor liver transplantation. Transplant Proc 2015; 47:1194-8. [PMID: 26036552 DOI: 10.1016/j.transproceed.2014.10.071] [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] [Received: 09/26/2014] [Accepted: 10/05/2014] [Indexed: 10/23/2022]
Abstract
BACKGROUND The association between intraoperative systemic hemodynamic status and preventing portal hyperperfusion, which induces shear stress on the sinusoidal endothelial cells of liver grafts, resulting in poor graft function in live-donor recipients, has not been identified. This study evaluates the effects of systemic hemodynamic parameters (SHPs) during the neohepatic phase on changes in hepatic hemodynamic parameters (HHPs) between the neohepatic phase and the 1st postoperative day. METHODS Thirty-eight patients undergoing living donor liver transplantation (LDLT) were enrolled in this study. HHPs (flow velocities of portal vein and hepatic artery) were measured immediately after hepatic artery and bile duct reconstruction and on the first postoperative day. SHPs (mean arterial pressure, central venous pressure [CVP], cardiac index, stroke volume variation, stroke volume index, systemic vascular resistance index, and central venous oxygen saturation) were recorded and averaged for 5 minutes after the measurement of HHPs. The relationships between the SHPs and HHPs were assessed using linear or quadratic regression analysis. RESULTS Peak portal vein flow velocity (PVV) decreased on the 1st postoperative day in 24 patients (63%). There was an inverted-U relationship between CVP and the percentage change in PVV (R(2) = 0.241, P = .008). According to the quadratic regression model, the PVV maximally decreased at a CVP of 7.8 mm Hg. No significant correlations were found between the other SHPs and HHPs. CONCLUSIONS Maintaining CVP (approximately 8 mm Hg) during the neohepatic phase was clinically beneficial in decreasing PVV to prevent portal hyperperfusion in the early postoperative period of LDLT.
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Affiliation(s)
- T H Ryu
- Department of Anesthesiology and Pain Medicine, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea
| | - J Y Jung
- Department of Anesthesiology and Pain Medicine, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea
| | - D L Choi
- Division of Hepatobiliary Pancreas Surgery and Abdominal Organ Transplantation, Department of Surgery, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea
| | - Y S Han
- Department of Surgery, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - J D Kim
- Division of Hepatobiliary Pancreas Surgery and Abdominal Organ Transplantation, Department of Surgery, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea
| | - J H Kim
- Department of Anesthesiology and Pain Medicine, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea.
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Affiliation(s)
- M S Kim
- Department of Dermatology, College of Medicine, Hallym University, 896 Pyeongchon-dong, Dongan-gu, Anyang, Gyeonggi-do, 431-070, Korea
| | - J Y Jung
- Department of Dermatology, College of Medicine, Hallym University, 896 Pyeongchon-dong, Dongan-gu, Anyang, Gyeonggi-do, 431-070, Korea
| | - E B Cho
- Department of Dermatology, College of Medicine, Hallym University, 896 Pyeongchon-dong, Dongan-gu, Anyang, Gyeonggi-do, 431-070, Korea
| | - E J Park
- Department of Dermatology, College of Medicine, Hallym University, 896 Pyeongchon-dong, Dongan-gu, Anyang, Gyeonggi-do, 431-070, Korea.
| | - K H Kim
- Department of Dermatology, College of Medicine, Hallym University, 896 Pyeongchon-dong, Dongan-gu, Anyang, Gyeonggi-do, 431-070, Korea
| | - K J Kim
- Department of Dermatology, College of Medicine, Hallym University, 896 Pyeongchon-dong, Dongan-gu, Anyang, Gyeonggi-do, 431-070, Korea
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Kim TW, Kim YJ, Park SR, Seo CS, Ha H, Shin HK, Jung JY. Chrysanthemum indicum attenuates cisplatin-induced nephrotoxicity both in vivo and in vitro. Nat Prod Commun 2015; 10:397-402. [PMID: 25924514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
Chrysanthemum indicum Linné has been used in traditional medicine to treat various inflammatory diseases in East Asia. The aim of the present study was to investigate the protective effect of C. indicum ethanol extract (CILE) against cisplatin-induced nephrotoxicity. An HPLC-photodiode array method was used for fingerprint analysis of the CILE and ten major constituents were quantitatively analyzed. The protective effect of CILE on cisplatin-induced nephrotoxicity was assessed using both in vitro (porcine kidney cell; PK15 cell) and in vivo (Sprague Dawley rat) experiments. In the in vitro study, CILE enhanced PK15 cell viability after cisplatin treatment with recovered antioxidant status. Moreover, the increased p53 expression after cisplatin treatment was decreased in the CILE pretreated cells. In the in vivo study, SD rats were treated for 28 consecutive days with CILE (0, 100, 300 and 500 mg/kg). On day 23, a single dose of cisplatin (5 mg/kg) was injected to induce nephrotoxicity. The CILE pretreated group showed recovered serum renal function index with ameliorated oxidative stress. Histopathological alterations and apoptosis in the kidney were also decreased in CILE pretreated rats. Taken together, CILE could attenuate cisplatin-induced nephrotoxicity and might be a beneficial agent for acute renal failure management.
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Kim TW, Kim YJ, Park SR, Seo CS, Ha H, Shin HK, Jung JY. Chrysanthemum indicum Attenuates Cisplatin-induced Nephrotoxicity both in vivo and in vitro. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000306] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chrysanthemum indicum Linné has been used in traditional medicine to treat various inflammatory diseases in East Asia. The aim of the present study was to investigate the protective effect of C. indicum ethanol extract (CILE) against cisplatin-induced nephrotoxicity. An HPLC-photodiode array method was used for fingerprint analysis of the CILE and ten major constituents were quantitatively analyzed. The protective effect of CILE on cisplatin-induced nephrotoxicity was assessed using both in vitro (porcine kidney cell; PK15 cell) and in vivo (Sprague Dawley rat) experiments. In the in vitro study, CILE enhanced PK15 cell viability after cisplatin treatment with recovered antioxidant status. Moreover, the increased p53 expression after cisplatin treatment was decreased in the CILE pretreated cells. In the in vivo study, SD rats were treated for 28 consecutive days with CILE (0, 100, 300 and 500 mg/kg). On day 23, a single dose of cisplatin (5 mg/kg) was injected to induce nephrotoxicity. The CILE pretreated group showed recovered serum renal function index with ameliorated oxidative stress. Histopathological alterations and apoptosis in the kidney were also decreased in CILE pretreated rats. Taken together, CILE could attenuate cisplatin-induced nephrotoxicity and might be a beneficial agent for acute renal failure management.
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Affiliation(s)
- Tae-Won Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 220 Gung-dong, Yusung-gu, Daejeon, Republic of Korea 305-764
| | - Young-Jung Kim
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 220 Gung-dong, Yusung-gu, Daejeon, Republic of Korea 305-764
| | - So-Ra Park
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 220 Gung-dong, Yusung-gu, Daejeon, Republic of Korea 305-764
| | - Chang-Seob Seo
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, 483 Expo-ro, Yusung-gu, Daejeon, Republic of Korea 305-811
| | - Hyekyung Ha
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, 483 Expo-ro, Yusung-gu, Daejeon, Republic of Korea 305-811
| | - Hyeun-Kyoo Shin
- Basic Herbal Medicine Research Group, Korea Institute of Oriental Medicine, 483 Expo-ro, Yusung-gu, Daejeon, Republic of Korea 305-811
| | - Ju-Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, 220 Gung-dong, Yusung-gu, Daejeon, Republic of Korea 305-764
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Abstract
BACKGROUND One of the promising applications of silk fibroin (SF) in biomedical engineering is its use as a scaffolding material for skin regeneration. The purpose of this study was to determine the wound healing effect of SF nanofibrous matrices containing silver sulfadiazine (SSD) wound dressings. METHODS An SF nanofibrous matrix containing SSD was prepared by electrospinning. The cell attachment and spreading of normal human epidermal keratinocytes (NHEK) and normal human epidermal fibroblasts (NHEF) to SF nanofibers containing three different concentrations of SSD contents (0.1, 0.5, and 1.0 wt%) were determined. In addition, a rat wound model was used in this study to determine the wound healing effect of SF nanofibers containing SSD compared with that of Acticoat™, a commercially available wound dressing. RESULTS The number of NHEK and NHEF attached to SF nanofibers containing SSD decreased when the concentration of SSD increased. The number of attached NHEF cells was lower than that of attached NHEK cells. The SF matrix with 1.0 wt% SSD produced faster wound healing than Acticoat, although 1.0 wt% SSD inhibited the attachment of epidermal cells to SF nanofibers in vitro. CONCLUSION The cytotoxic effects of SF nanofibers with SSD should be considered in the development of silver-release dressings for wound healing through its antimicrobial activity. It is challenging to design wound dressings that maximize antimicrobial activity and minimize cellular toxicity.
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Affiliation(s)
- Lim Jeong
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, Seoul, South Korea
| | - Min Hee Kim
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, Seoul, South Korea
| | - Ju-Young Jung
- College of Veterinary Medicine, Chungnam National University, Daejeon, Seoul, South Korea
| | - Byung Moo Min
- Department of Oral Biochemistry, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Won Ho Park
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon, Seoul, South Korea
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Kang JH, Ko HM, Moon JS, Yoo HI, Jung JY, Kim MS, Koh JT, Kim WJ, Kim SH. Osteoprotegerin expressed by osteoclasts: an autoregulator of osteoclastogenesis. J Dent Res 2014; 93:1116-23. [PMID: 25256714 DOI: 10.1177/0022034514552677] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [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: 11/16/2022] Open
Abstract
Osteoprotegerin (OPG) is secreted by stromal and osteoblastic lineage cells and inhibits osteoclastogenesis by preventing the interaction of receptor activator of nuclear factor-κB ligand (RANKL) with receptor activator of nuclear factor-κB (RANK). In this study, the expression of OPG in osteoclasts themselves and its biological functions during osteoclastogenesis were investigated for the first time. OPG expression in vivo in the developing rat maxilla was examined by immunofluorescence analysis. OPG expression in osteoclasts during in vitro osteoclastogenesis was determined by reverse-transcription polymerase chain-reaction (RT-PCR), Western blot, and immunofluorescence staining. We determined the function of OPG produced by osteoclasts during osteoclastogenesis by silencing the OPG gene. The effects of OPG on bone-resorbing activity and apoptosis of mature osteoclasts were examined by the assay of resorptive pit formation on calcium-phosphate-coated plate and terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) staining, respectively. In the immunofluorescence findings, strong immunoreactivities were unexpectedly seen in multinucleated tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts around the growing and erupting tooth germs in the rat alveolar bone. In vitro, OPG expression was significantly increased during the differentiation of osteoclasts from mouse bone-marrow-derived cells treated with a combination of macrophage colony-stimulating factor (M-CSF) and RANKL. Interestingly, it was found that OPG small interfering (si)RNA treatment during osteoclastogenesis enhanced the sizes of osteoclasts, but attenuated their bone-resorbing activity. Also, the increased chromosomal DNA fragmentation and caspase-3 activity in the late phase of osteoclastogenesis were found to be decreased by treatment with OPG siRNA. Furthermore, effects of OPG siRNA treatment on osteoclastogenesis and bone-resorbing activity were recovered by the treatment of exogenous OPG. These results suggest that OPG, expressed by the osteoclasts themselves, may play an auto-regulatory role in the late phase of osteoclastogenesis through the induction of apoptosis.
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Affiliation(s)
- J H Kang
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - H M Ko
- Department of Microbiology, College of Medicine, Seonam University, Namwon, Korea
| | - J S Moon
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - H I Yoo
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - J Y Jung
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - M S Kim
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - J T Koh
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - W J Kim
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - S H Kim
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
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Jun YJ, Park SJ, Hwang JW, Kim TH, Jung KJ, Jung JY, Hwang GH, Lee SH, Lee SH. Differential expression of 11β-hydroxysteroid dehydrogenase type 1 and 2 in mild and moderate/severe persistent allergic nasal mucosa and regulation of their expression by Th2 cytokines: asthma and rhinitis. Clin Exp Allergy 2014; 44:197-211. [PMID: 24447082 DOI: 10.1111/cea.12195] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 08/15/2013] [Accepted: 08/26/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Glucocorticoids are used to treat allergic rhinitis, but the mechanisms by which they induce disease remission are unclear. 11β-hydroxysteroid dehydrogenase (11β-HSD) is a tissue-specific regulator of glucocorticoid responses, inducing the interconversion of inactive and active glucocorticoids. OBJECTIVE We analysed the expression and distribution patterns of 11β-HSD1, 11β-HSD2, and steroidogenic enzymes in normal and allergic nasal mucosa, and cytokine-driven regulation of their expression. The production levels of cortisol in normal, allergic nasal mucosa and in cultured epithelial cells stimulated with cytokines were also determined. METHODS The expression levels of 11β-HSD1, 11β-HSD2, steroidogenic enzymes (CYP11B1, CYP11A1), and cortisol in normal, mild, and moderate/severe persistent allergic nasal mucosa were assessed by real-time PCR, Western blot, immunohistochemistry, and ELISA. The expression levels of 11β-HSD1, 11β-HSD2, CYP11B1, CYP11A1, and cortisol were also determined in cultured nasal epithelial cell treated with IL-4, IL-5, IL-13, IL-17A, and IFN-γ. Conversion ratio of cortisone to cortisol was evaluated using siRNA technique, 11β-HSD1 inhibitor, and the measurement of 11β-HSD1 activity. RESULTS The expression levels of 11β-HSD1, CYP11B1, and cortisol were up-regulated in mild and moderate/severe persistent allergic nasal mucosa. By contrast, 11β-HSD2 expression was decreased in allergic nasal mucosa. In cultured epithelial cells treated with IL-4, IL-5, IL-13, and IL-17A, 11β-HSD1 expression and activity increased in parallel with the expression levels of CYP11B1 and cortisol, but the production of 11β-HSD2 decreased. CYP11A1 expression level was not changed in allergic nasal mucosa or in response to stimulation with cytokines. SiRNA technique or the measurement of 11β-HSD1 activity showed that nasal epithelium activates cortisone to cortisol in a 11β-HSD-dependent manner. CONCLUSIONS AND CLINICAL RELEVANCE These results indicate that the localized anti-inflammatory effects of glucocorticoids are regulated by inflammatory cytokines, which can modulate the expression of 11β-HSD1, 11β-HSD2, and CYP11B1, and by the intracellular concentrations of bioactive glucocorticoids.
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Affiliation(s)
- Y J Jun
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Korea
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Seo CS, Kim TW, Kim YJ, Park SR, Ha H, Shin HK, Jung JY. Trichosanthes kirilowiiameliorates cisplatin-induced nephrotoxicity in bothin vitroandin vivo. Nat Prod Res 2014; 29:554-7. [DOI: 10.1080/14786419.2014.952229] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Hong JY, Kim SY, Chung KS, Kim EY, Jung JY, Park MS, Kim YS, Kim SK, Chang J, Kang YA. Association between vitamin D deficiency and tuberculosis in a Korean population. Int J Tuberc Lung Dis 2014; 18:73-8. [PMID: 24365556 DOI: 10.5588/ijtld.13.0536] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Several in vitro studies have been conducted regarding the immunomodulatory and mycobactericidal roles of vitamin D in tuberculous infection. However, discrepancies exist among epidemiological studies. We compared vitamin D deficiency between patients with tuberculosis (TB) and healthy control subjects and identified risk factors for vitamin D deficiency. METHOD This was an age- and sex-matched case-control analysis of 94 TB cohort and 282 Korean national survey participants. RESULTS The median baseline 25-hydroxyvitamin D (25[OH]D) level in the TB group (9.86 ng/ml, IQR 7.19-14.15) was lower than in controls (16.03 ng/ml, IQR 12.38-20.30, P < 0.001). The prevalence of severe vitamin D deficiency was higher in patients with TB (51.1%) than in controls (8.2%, P = 0.001). The median 25(OH)D level increased from 11.40 ng/ml (IQR 7.85-15.73) to 13.18 ng/ml (IQR 10.60-19.71) after treatment completion (P = 0.037). On multivariate analysis, presence of TB and history of TB were independently associated with severe vitamin D deficiency. CONCLUSION Patients with TB had a higher prevalence of vitamin D deficiency than control subjects in a Korean population. The median 25(OH)D level increased after TB treatment. Further studies are needed to establish a causal relationship.
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Affiliation(s)
- J Y Hong
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Y Kim
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - K S Chung
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - E Y Kim
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Jung
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M S Park
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S K Kim
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Chang
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y A Kang
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Abstract
Nitric oxide (NO) is synthesized within the adult and developing kidney and plays a critical role in the regulation of renal hemodynamics and tubule function. In the adult kidney, the regulation of NO synthesis is very cell type specific and subject to distinct control mechanisms of NO synthase (NOS) isoforms. Endothelial NOS (eNOS) is expressed in the endothelial cells of glomeruli, peritubular capillaries, and vascular bundles. Neuronal NOS (nNOS) is expressed in the tubular epithelial cells of the macula densa and inner medullary collecting duct. Furthermore, in the immature kidney, the expression of eNOS and nNOS shows unique patterns distinct from that is observed in the adult. This review will summarize the localization and presumable function of NOS isoforms in the adult and developing kidney.
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Affiliation(s)
- Ki-Hwan Han
- Department of Anatomy, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Ju-Young Jung
- Department of Anatomy, College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - Ku-Yong Chung
- Department of Surgery, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Hyang Kim
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Korea
| | - Jin Kim
- Department of Anatomy and MRC for Cell Death Disease Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
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