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Kim H, Jang H, Song J, Lee SM, Lee S, Kwon HJ, Kim S, Kang T, Park HG. A CRISPR/Cas12 trans-cleavage reporter enabling label-free colorimetric detection of SARS-CoV-2 and its variants. Biosens Bioelectron 2024; 251:116102. [PMID: 38350240 DOI: 10.1016/j.bios.2024.116102] [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: 11/22/2023] [Revised: 01/17/2024] [Accepted: 02/03/2024] [Indexed: 02/15/2024]
Abstract
We present a label-free colorimetric CRISPR/Cas-based method enabling affordable molecular diagnostics for SARS-CoV-2. This technique utilizes 3,3'-diethylthiadicarbocyanine iodide (DISC2(5)) which exhibits a distinct color transition from purple to blue when it forms dimers by inserting into the duplex of the thymidine adenine (TA) repeat sequence. Loop-mediated isothermal amplification (LAMP) or recombinase polymerase amplification (RPA) was used to amplify target samples, which were subsequently subjected to the CRISPR/Cas12a system. The target amplicons would activate Cas12a to degrade nearby TA repeat sequences, preserving DISC2(5) in its free form to display purple as opposed to blue in the absence of the target. Based on this design approach, SARS-CoV-2 RNA was colorimetrically detected very sensitively down to 2 copies/μL, and delta and omicron variants of SARS-CoV-2 were also successfully identified. The practical diagnostic utility of this method was further validated by reliably identifying 179 clinical samples including 20 variant samples with 100% clinical sensitivity and specificity. This technique has the potential to become a promising CRISPR-based colorimetric platform for molecular diagnostics of a wide range of target pathogens.
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Affiliation(s)
- Hansol Kim
- Department of Chemical and Biomolecular Engineering (BK 21+ program), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyowon Jang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jayeon Song
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sang Mo Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ program), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seoyoung Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ program), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, KRIBB, 181 Ipsin-gil, Jeongeup, Jeollabuk-do, 56212, Republic of Korea
| | - Sunjoo Kim
- Department of Laboratory Medicine, Gyeongsang National University College of Medicine, 79 Gangnam-ro, Jinju, Gyeongsangnam-do, 52727, Republic of Korea
| | - Taejoon Kang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; School of Pharmacy, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK 21+ program), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Kwon O, Lee H, Jung J, Son YS, Jeon S, Yoo WD, Son N, Jung KB, Choi E, Lee IC, Kwon HJ, Kim C, Lee MO, Cho HS, Kim DS, Son MY. Chemically-defined and scalable culture system for intestinal stem cells derived from human intestinal organoids. Nat Commun 2024; 15:799. [PMID: 38280855 PMCID: PMC10821882 DOI: 10.1038/s41467-024-45103-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 01/12/2024] [Indexed: 01/29/2024] Open
Abstract
Three-dimensional human intestinal organoids (hIO) are widely used as a platform for biological and biomedical research. However, reproducibility and challenges for large-scale expansion limit their applicability. Here, we establish a human intestinal stem cell (ISC) culture method expanded under feeder-free and fully defined conditions through selective enrichment of ISC populations (ISC3D-hIO) within hIO derived from human pluripotent stem cells. The intrinsic self-organisation property of ISC3D-hIO, combined with air-liquid interface culture in a minimally defined medium, forces ISC3D-hIO to differentiate into the intestinal epithelium with cellular diversity, villus-like structure, and barrier integrity. Notably, ISC3D-hIO is an ideal cell source for gene editing to study ISC biology and transplantation for intestinal diseases. We demonstrate the intestinal epithelium differentiated from ISC3D-hIO as a model system to study severe acute respiratory syndrome coronavirus 2 viral infection. ISC3D-hIO culture technology provides a biological tool for use in regenerative medicine and disease modelling.
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Affiliation(s)
- Ohman Kwon
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Hana Lee
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Jaeeun Jung
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Ye Seul Son
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Sojeong Jeon
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Won Dong Yoo
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Naeun Son
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Kwang Bo Jung
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Eunho Choi
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - In-Chul Lee
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 56212, Republic of Korea
- KRIBB, Korea Preclinical Evaluation Center, Jeongeup, 56212, Republic of Korea
| | - Hyung-Jun Kwon
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 56212, Republic of Korea
- KRIBB, Korea Preclinical Evaluation Center, Jeongeup, 56212, Republic of Korea
| | - Chuna Kim
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
- KRIBB, Aging Convergence Research Center, Daejeon, 34141, Republic of Korea
| | - Mi-Ok Lee
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Hyun-Soo Cho
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
- Department of Biological Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Dae Soo Kim
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Mi-Young Son
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea.
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
- Department of Biological Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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Lim S, Kwon HJ, Jeong DG, Nie H, Lee S, Ko SR, Lee KS, Ryu YB, Mason HS, Kim HS, Shin AY, Kwon SY. Enhanced binding and inhibition of SARS-CoV-2 by a plant-derived ACE2 protein containing a fused mu tailpiece. Biotechnol J 2024; 19:e2300319. [PMID: 37853601 DOI: 10.1002/biot.202300319] [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: 06/30/2023] [Revised: 09/27/2023] [Accepted: 10/11/2023] [Indexed: 10/20/2023]
Abstract
Infectious diseases such as Coronavirus disease 2019 (COVID-19) and Middle East respiratory syndrome (MERS) present an increasingly persistent crisis in many parts of the world. COVID-19 is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The angiotensin-converting enzyme 2 (ACE2) is a crucial cellular receptor for SARS-CoV-2 infection. Inhibition of the interaction between SARS-CoV-2 and ACE2 has been proposed as a target for the prevention and treatment of COVID-19. We produced four recombinant plant-derived ACE2 isoforms with or without the mu tailpiece (μ-tp) of immunoglobulin M (IgM) and the KDEL endoplasmic reticulum retention motif in a plant expression system. The plant-derived ACE2 isoforms bound whole SARS-CoV-2 virus and the isolated receptor binding domains of SARS-CoV-2 Alpha, Beta, Gamma, Delta, and Omicron variants. Fusion of μ-tp and KDEL to the ACE2 protein (ACE2 μK) had enhanced binding activity with SARS-CoV-2 in comparison with unmodified ACE2 protein derived from CHO cells. Furthermore, the plant-derived ACE2 μK protein exhibited no cytotoxic effects on Vero E6 cells and effectively inhibited SARS-CoV-2 infection. The efficient and rapid scalability of plant-derived ACE2 μK protein offers potential for the development of preventive and therapeutic agents in the early response to future viral outbreaks.
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Affiliation(s)
- Sohee Lim
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Dae Gwin Jeong
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Bio-Analytical Science Division, Korea Research Institute of Bioscience and Biotechnology School of Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
| | - Hualin Nie
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Sanghee Lee
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Biosystems and Bioengineering Program, Korea Research Institute of Bioscience and Biotechnology School of Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
| | - Seo-Rin Ko
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Department of Bioinformatics, Korea Research Institute of Bioscience and Biotechnology School of Bioscience, University of Science and Technology, Daejeon, Republic of Korea
| | - Kyu-Sun Lee
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Bio-Analytical Science Division, Korea Research Institute of Bioscience and Biotechnology School of Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
| | - Young Bae Ryu
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Hugh S Mason
- Center for Immunotherapy, Vaccines, and Virotherapy (CIVV), The Biodesign Institute at ASU, Tempe, Arizona, USA
| | - Hyun-Soon Kim
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Biosystems and Bioengineering Program, Korea Research Institute of Bioscience and Biotechnology School of Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
| | - Ah-Young Shin
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Department of Bioinformatics, Korea Research Institute of Bioscience and Biotechnology School of Bioscience, University of Science and Technology, Daejeon, Republic of Korea
| | - Suk-Yoon Kwon
- Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Biosystems and Bioengineering Program, Korea Research Institute of Bioscience and Biotechnology School of Biotechnology, University of Science and Technology, Daejeon, Republic of Korea
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Oh E, Jang H, Ok S, Eom J, Lee H, Kim SH, Kim JH, Jeong YM, Kim KJ, Yun SP, Kwon HJ, Lee IC, Park JY, Yang S. WGA-M001, a Mixture of Total Extracts of Tagetes erecta and Ocimum basilicum, Synergistically Alleviates Cartilage Destruction by Inhibiting ERK and NF-κB Signaling. Int J Mol Sci 2023; 24:17459. [PMID: 38139287 PMCID: PMC10743532 DOI: 10.3390/ijms242417459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Tagetes erecta and Ocimum basilicum are medicinal plants that exhibit anti-inflammatory effects against various diseases. However, their individual and combined effects on osteoarthritis (OA) are unknown. Herein, we aimed to demonstrate the effects of T. erecta, O. basilicum, and their mixture, WGA-M001, on OA pathogenesis. The administration of total extracts of T. erecta and O. basilicum reduced cartilage degradation and inflammation without causing cytotoxicity. Although WGA-M001 contained lower concentrations of the individual extracts, it strongly inhibited the expression of pathogenic factors. In vivo OA studies also supported that WGA-M001 had protective effects against cartilage destruction at lower doses than those of T. erecta and O. basilicum. Moreover, its effects were stronger than those observed using Boswellia and Perna canaliculus. WGA-M001 effectively inhibited the interleukin (IL)-1β-induced nuclear factor kappa-light-chain-enhancer of the activated B cell (NF-κB) pathway and ERK phosphorylation. Furthermore, RNA-sequence analysis also showed that WGA-M001 decreased the expression of genes related to the IL-1β-induced NF-κB and ERK signaling pathways. Therefore, WGA-M001 is more effective than the single total extracts of T. erecta and O. basilicum in attenuating OA progression by regulating ERK and NF-κB signaling. Our results open new possibilities for WGA-M001 as a potential therapeutic agent for OA treatment.
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Affiliation(s)
- Eunjeong Oh
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; (E.O.); (H.J.); (S.O.); (J.E.)
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Hahyeong Jang
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; (E.O.); (H.J.); (S.O.); (J.E.)
| | - Subin Ok
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; (E.O.); (H.J.); (S.O.); (J.E.)
| | - Jiwon Eom
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; (E.O.); (H.J.); (S.O.); (J.E.)
| | - Hyunyong Lee
- Wooree Green Science, Ansan 15409, Republic of Korea; (H.L.); (S.H.K.); (J.H.K.); (Y.M.J.); (K.J.K.)
| | - Sung Hun Kim
- Wooree Green Science, Ansan 15409, Republic of Korea; (H.L.); (S.H.K.); (J.H.K.); (Y.M.J.); (K.J.K.)
| | - Jong Hwa Kim
- Wooree Green Science, Ansan 15409, Republic of Korea; (H.L.); (S.H.K.); (J.H.K.); (Y.M.J.); (K.J.K.)
| | - Yu Mi Jeong
- Wooree Green Science, Ansan 15409, Republic of Korea; (H.L.); (S.H.K.); (J.H.K.); (Y.M.J.); (K.J.K.)
| | - Kyeong Jin Kim
- Wooree Green Science, Ansan 15409, Republic of Korea; (H.L.); (S.H.K.); (J.H.K.); (Y.M.J.); (K.J.K.)
- Department of Horticulture, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Seung Pil Yun
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Republic of Korea;
| | - Hyung-Jun Kwon
- Center for Companion Animal New Drug Development, Jeonbuk Branch, Korea Institute of Toxicology, Jeongeup 53212, Republic of Korea; (H.-J.K.); (I.-C.L.); (J.-Y.P.)
| | - In-Chul Lee
- Center for Companion Animal New Drug Development, Jeonbuk Branch, Korea Institute of Toxicology, Jeongeup 53212, Republic of Korea; (H.-J.K.); (I.-C.L.); (J.-Y.P.)
| | - Ji-Young Park
- Center for Companion Animal New Drug Development, Jeonbuk Branch, Korea Institute of Toxicology, Jeongeup 53212, Republic of Korea; (H.-J.K.); (I.-C.L.); (J.-Y.P.)
| | - Siyoung Yang
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; (E.O.); (H.J.); (S.O.); (J.E.)
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Zanin M, Le TB, Na W, Kang JA, Kwon HJ, Hwang J, Ga EH, Wong SS, Cho HJ, Song D, Kim HK, Jeong DG, Yoon SW. Potential for transmission of naturally mutated H10N1 avian influenza virus to mammalian hosts and causing severe pulmonary disease. Front Microbiol 2023; 14:1256090. [PMID: 37779710 PMCID: PMC10536253 DOI: 10.3389/fmicb.2023.1256090] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/21/2023] [Indexed: 10/03/2023] Open
Abstract
Subtype H10 avian influenza viruses (AIV) are distributed worldwide in wild aquatic birds, and can infect humans and several other mammalian species. In the present study, we investigated the naturally mutated PB2 gene in A/aquatic bird/South Korea/SW1/2018 (A/SW1/18, H10N1), isolated from wild birds during the 2018-2019 winter season. This virus was originally found in South Korea, and is similar to isolates from mainland China and Mongolia. It had low pathogenicity, lacked a multi-basic cleavage site, and showed a binding preference for α2,3-linked sialic acids. However, it can infect mice, causing severe disease and lung pathology. SW1 was also transmitted by direct contact in ferrets, and replicated in the respiratory tract tissue, with no evidence of extrapulmonary spread. The pathogenicity and transmissibility of SW1 in mouse and ferret models were similar to those of the pandemic strain A/California/04/2009 (A/CA/04, H1N1). These factors suggest that subtype H10 AIVs have zoonotic potential and may transmit from human to human, thereby posing a potential threat to public health. Therefore, the study highlights the urgent need for closer monitoring of subtype H10 AIVs through continued surveillance of wild aquatic birds.
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Affiliation(s)
- Mark Zanin
- School of Public Health, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Tran Bac Le
- Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Woonsung Na
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Jung-Ah Kang
- Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Hyung-Jun Kwon
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Jaehyun Hwang
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Eul Hae Ga
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Sook-San Wong
- School of Public Health, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Hae-Jin Cho
- Korea Institute of Environment Ecology, Daejeon, Republic of Korea
| | - Daesub Song
- College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Hye Kwon Kim
- Department of Microbiology, College of Natural Sciences, Chungbuk National University, Cheongju, Republic of Korea
| | - Dae Gwin Jeong
- Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Sun-Woo Yoon
- Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Department of Vaccine Biotechnology, College of Life Sciences and Health Welfare, Andong National University, Andong, Republic of Korea
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Choi G, Rejinold NS, Piao H, Ryu YB, Kwon HJ, Lee IC, Seo JI, Yoo HH, Jin GW, Choy JH. The Next Generation COVID-19 Antiviral; Niclosamide-Based Inorganic Nanohybrid System Kills SARS-CoV-2. Small 2023:e2305148. [PMID: 37635100 DOI: 10.1002/smll.202305148] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/31/2023] [Indexed: 08/29/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic is a serious global threat with surging new variants of concern. Although global vaccinations have slowed the pandemic, their longevity is still unknown. Therefore, new orally administrable antiviral agents are highly demanded. Among various repurposed drugs, niclosamide (NIC) is the most potential one for various viral diseases such as COVID-19, SARS (severe acute respiratory syndrome), MERS (middle east respiratory syndrome), influenza, RSV (respiratory syncytial virus), etc. Since NIC cannot be effectively absorbed, a required plasma concentration for antiviral potency is hard to maintain, thereby restricting its entry into the infected cells. Such a 60-year-old bioavailability challenging issue has been overcome by engineering with MgO and hydroxypropyl methylcellulose (HPMC), forming hydrophilic NIC-MgO-HPMC, with improved intestinal permeability without altering NIC metabolism as confirmed by parallel artificial membrane permeability assay. The inhibitory effect on SARS-CoV-2 replication is confirmed in the Syrian hamster model to reduce lung injury. Clinical studies reveal that the bioavailability of NIC hybrid drug can go 4 times higher than the intact NIC. The phase II clinical trial shows a dose-dependent bioavailability of NIC from hybrid drug suggesting its potential applicability as a game changer in achieving the much-anticipated endemic phase.
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Affiliation(s)
- Goeun Choi
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- College of Science and Technology, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - N Sanoj Rejinold
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
| | - Huiyan Piao
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
| | - Young Bae Ryu
- Functional Biomaterials Research Center, Korea Research Institute of Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 34141, Republic of Korea
| | - Hyung-Jun Kwon
- Functional Biomaterials Research Center, Korea Research Institute of Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 34141, Republic of Korea
| | - In Chul Lee
- Functional Biomaterials Research Center, Korea Research Institute of Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 34141, Republic of Korea
| | - Jeong In Seo
- Institute of Pharmaceutical Science and Technology, College of Pharmacy, Hanyang University, Ansan, 15588, Republic of Korea
| | - Hye Hyun Yoo
- Institute of Pharmaceutical Science and Technology, College of Pharmacy, Hanyang University, Ansan, 15588, Republic of Korea
| | - Geun-Woo Jin
- R&D Center, CnPharm Co. LTD., Seoul, 03759, Republic of Korea
| | - Jin-Ho Choy
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Pre-Medical Course, College of Medicine, Dankook University, Cheonan, 31116, Republic of Korea
- International Research Frontier Initiative (IRFI), Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan
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Jeong SH, Park JY, Ryu YB, Kim WS, Lee IC, Kim JH, Kim D, Ha JH, Lee BW, Nam J, Cho KO, Kwon HJ. Myristica fragrans Extract Inhibits Platelet Desialylation and Activation to Ameliorate Sepsis-Associated Thrombocytopenia in a Murine CLP-Induced Sepsis Model. Int J Mol Sci 2023; 24:ijms24108863. [PMID: 37240208 DOI: 10.3390/ijms24108863] [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: 04/11/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Sepsis, characterized by an uncontrolled host inflammatory response to infections, remains a leading cause of death in critically ill patients worldwide. Sepsis-associated thrombocytopenia (SAT), a common disease in patients with sepsis, is an indicator of disease severity. Therefore, alleviating SAT is an important aspect of sepsis treatment; however, platelet transfusion is the only available treatment strategy for SAT. The pathogenesis of SAT involves increased platelet desialylation and activation. In this study, we investigated the effects of Myristica fragrans ethanol extract (MF) on sepsis and SAT. Desialylation and activation of platelets treated with sialidase and adenosine diphosphate (platelet agonist) were assessed using flow cytometry. The extract inhibited platelet desialylation and activation via inhibiting bacterial sialidase activity in washed platelets. Moreover, MF improved survival and reduced organ damage and inflammation in a mouse model of cecal ligation and puncture (CLP)-induced sepsis. It also prevented platelet desialylation and activation via inhibiting circulating sialidase activity, while maintaining platelet count. Inhibition of platelet desialylation reduces hepatic Ashwell-Morell receptor-mediated platelet clearance, thereby reducing hepatic JAK2/STAT3 phosphorylation and thrombopoietin mRNA expression. This study lays a foundation for the development of plant-derived therapeutics for sepsis and SAT and provides insights into sialidase-inhibition-based sepsis treatment strategies.
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Affiliation(s)
- Seong-Hun Jeong
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Ji-Young Park
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
- Center for Companion Animal New Drug Development, Jeonbuk Branch, Korea Institute of Toxicology, Jeongeup 53212, Republic of Korea
| | - Young Bae Ryu
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Woo Sik Kim
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - In-Chul Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
- Center for Companion Animal New Drug Development, Jeonbuk Branch, Korea Institute of Toxicology, Jeongeup 53212, Republic of Korea
| | - Ju-Hong Kim
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Dohoon Kim
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Ji-Hye Ha
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Ba-Wool Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Jiyoung Nam
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Kyoung-Oh Cho
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
- Center for Companion Animal New Drug Development, Jeonbuk Branch, Korea Institute of Toxicology, Jeongeup 53212, Republic of Korea
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8
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Sik Kim W, Jeong SH, Shin KW, Jin Lee H, Park JY, Lee IC, Jae Jeong H, Bae Ryu Y, Kwon HJ, Song Lee W. Solubilized curcuminoid complex prevents extensive immunosuppression through immune restoration and antioxidant activity: Therapeutic potential against SARS-CoV-2 (COVID-19). Int Immunopharmacol 2023; 115:109635. [PMID: 36580758 PMCID: PMC9790878 DOI: 10.1016/j.intimp.2022.109635] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/29/2022] [Accepted: 12/21/2022] [Indexed: 12/27/2022]
Abstract
The therapeutic benefits of curcuminoids in various diseases have been extensively reported. However, little is known regarding their preventive effects on extensive immunosuppression. We investigated the immunoregulatory effects of a curcuminoid complex (CS/M), solubilized with stevioside, using a microwave-assisted method in a cyclophosphamide (CTX)-induced immunosuppressive mouse model and identified its new pharmacological benefits. CTX-treated mice showed a decreased number of innate cells, such as dendritic cells (DCs), neutrophils, and natural killer (NK) cells, and adaptive immune cells (CD4 and CD8 T cells) in the spleen. In addition, CTX administration decreased T cell activation, especially that of Th1 and CD8 T cells, whereas it increased Th2 and regulatory T (Treg) cell activations. Pre-exposure of CS/M to CTX-induced immunosuppressed mice restored the number of innate cells (DCs, neutrophils, and NK cells) and increased their activity (including the activity of macrophages). Exposure to CS/M also led to the superior restoration of T cell numbers, including Th1, activated CD8 T cells, and multifunctional T cells, suppressed by CTX, along with a decrease in Th2 and Treg cells. Furthermore,CTX-injected mice pre-exposed to CS/M were accompanied by an increase in the levels of antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase), which play an essential role against oxidative stress. Importantly, CS/M treatment significantly reduced viral loads in severe acute respiratory syndrome coronavirus2-infected hamsters and attenuated the gross pathology in the lungs. These results provide new insights into the immunological properties of CS/M in preventing extensive immunosuppression and offer new therapeutic opportunities against various cancers and infectious diseases caused by viruses and intracellular bacteria.
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Affiliation(s)
- Woo Sik Kim
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea.
| | - Seong-Hun Jeong
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea,Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Ki-Won Shin
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Hyeon Jin Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Ji-Young Park
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - In-Chul Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Hyung Jae Jeong
- Bio-processing Technology Development and Support Team, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Young Bae Ryu
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea.
| | - Woo Song Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea.
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9
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Nagahawatta DP, Liyanage NM, Je JG, Jayawardhana HHACK, Jayawardena TU, Jeong SH, Kwon HJ, Choi CS, Jeon YJ. Polyphenolic Compounds Isolated from Marine Algae Attenuate the Replication of SARS-CoV-2 in the Host Cell through a Multi-Target Approach of 3CL pro and PL pro. Mar Drugs 2022; 20:md20120786. [PMID: 36547933 PMCID: PMC9781010 DOI: 10.3390/md20120786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/15/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
A global health concern has emerged as a response to the recent SARS-CoV-2 pandemic. The identification and inhibition of drug targets of SARS-CoV-2 is a decisive obligation of scientists. In addition to the cell entry mechanism, SARS-CoV-2 expresses a complicated replication mechanism that provides excellent drug targets. Papain-like protease (PLpro) and 3-chymotrypsin-like protease (3CLpro) play a vital role in polyprotein processing, producing functional non-structural proteins essential for viral replication and survival in the host cell. Moreover, PLpro is employed by SARS-CoV-2 for reversing host immune responses. Therefore, if some particular compound has the potential to interfere with the proteolytic activities of 3CLpro and PLpro of SARS-CoV-2, it may be effective as a treatment or prophylaxis for COVID-19, reducing viral load, and reinstating innate immune responses. Thus, the present study aims to inhibit SARS-CoV-2 through 3CLpro and PLpro using marine natural products isolated from marine algae that contain numerous beneficial biological activities. Molecular docking analysis was utilized in the present study for the initial screening of selected natural products depending on their 3CLpro and PLpro structures. Based on this approach, Ishophloroglucin A (IPA), Dieckol, Eckmaxol, and Diphlorethohydroxycarmalol (DPHC) were isolated and used to perform in vitro evaluations. IPA presented remarkable inhibitory activity against interesting drug targets. Moreover, Dieckol, Eckmaxol, and DPHC also expressed significant potential as inhibitors. Finally, the results of the present study confirm the potential of IPA, Dieckol, Eckmaxol, and DPHC as inhibitors of SARS-CoV-2. To the best of our knowledge, this is the first study that assesses the use of marine natural products as a multifactorial approach against 3CLpro and PLpro of SARS-CoV-2.
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Affiliation(s)
- D. P. Nagahawatta
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - N. M. Liyanage
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - Jung-Geon Je
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | | | - Thilina U. Jayawardena
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G8Z 4M3, Canada
| | - Seong-Hun Jeong
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 56212, Republic of Korea
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 56212, Republic of Korea
| | - Cheol Soo Choi
- Korea Mouse Metabolic Phenotyping Center, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon 21565, Republic of Korea
- Correspondence: (C.S.C.); (Y.-J.J.)
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
- Correspondence: (C.S.C.); (Y.-J.J.)
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10
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Song J, Cha B, Moon J, Jang H, Kim S, Jang J, Yong D, Kwon HJ, Lee IC, Lim EK, Jung J, Park HG, Kang T. Smartphone-Based SARS-CoV-2 and Variants Detection System using Colorimetric DNAzyme Reaction Triggered by Loop-Mediated Isothermal Amplification (LAMP) with Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR). ACS Nano 2022; 16:11300-11314. [PMID: 35735410 PMCID: PMC9236205 DOI: 10.1021/acsnano.2c04840] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Coronavirus disease (COVID-19) has affected people for over two years. Moreover, the emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants has raised concerns regarding its accurate diagnosis. Here, we report a colorimetric DNAzyme reaction triggered by loop-mediated isothermal amplification (LAMP) with clustered regularly interspaced short palindromic repeats (CRISPR), referred to as DAMPR assay for detecting SARS-CoV-2 and variants genes with attomolar sensitivity within an hour. The CRISPR-associated protein 9 (Cas9) system eliminated false-positive signals of LAMP products, improving the accuracy of DAMPR assay. Further, we fabricated a portable DAMPR assay system using a three-dimensional printing technique and developed a machine learning (ML)-based smartphone application to routinely check diagnostic results of SARS-CoV-2 and variants. Among blind tests of 136 clinical samples, the proposed system successfully diagnosed COVID-19 patients with a clinical sensitivity and specificity of 100% each. More importantly, the D614G (variant-common), T478K (delta-specific), and A67V (omicron-specific) mutations of the SARS-CoV-2 S gene were detected selectively, enabling the diagnosis of 70 SARS-CoV-2 delta or omicron variant patients. The DAMPR assay system is expected to be employed for on-site, rapid, accurate detection of SARS-CoV-2 and its variants gene and employed in the diagnosis of various infectious diseases.
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Affiliation(s)
- Jayeon Song
- Bionanotechnology
Research Center, Korea Research Institute
of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic
of Korea
| | - Baekdong Cha
- School
of Integrated Technology, Gwangju Institute
of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu,
Gwangju 61005, Republic
of Korea
| | - Jeong Moon
- Bionanotechnology
Research Center, Korea Research Institute
of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic
of Korea
- Department
of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology
(KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hyowon Jang
- Bionanotechnology
Research Center, Korea Research Institute
of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic
of Korea
| | - Sunjoo Kim
- Department
of Laboratory Medicine, Gyeongsang National
University College of Medicine, 79 Gangnam-ro, Jinju-si, Gyeongsangnam-do 52727, Republic of Korea
- Gyeongnam
Center for Disease Control and Prevention, 300 Jungang-daero, Uichang-gu,
Changwon-si, Gyeongsangnamdo 51154, Republic of Korea
| | - Jieun Jang
- Gyeongnam
Center for Disease Control and Prevention, 300 Jungang-daero, Uichang-gu,
Changwon-si, Gyeongsangnamdo 51154, Republic of Korea
| | - Dongeun Yong
- Department
of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Hyung-Jun Kwon
- Functional
Biomaterial Research Center, KRIBB, 181 Ipsin-gil, Jeongeup-si, Jeollabuk-do 56212, Republic of Korea
| | - In-Chul Lee
- Functional
Biomaterial Research Center, KRIBB, 181 Ipsin-gil, Jeongeup-si, Jeollabuk-do 56212, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology
Research Center, Korea Research Institute
of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic
of Korea
- Department
of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu,
Daejeon 34113, Republic
of Korea
| | - Juyeon Jung
- Bionanotechnology
Research Center, Korea Research Institute
of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic
of Korea
| | - Hyun Gyu Park
- Department
of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology
(KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Taejoon Kang
- Bionanotechnology
Research Center, Korea Research Institute
of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic
of Korea
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11
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Cha H, Kim H, Joung Y, Kang H, Moon J, Jang H, Park S, Kwon HJ, Lee IC, Kim S, Yong D, Yoon SW, Park SG, Guk K, Lim EK, Park HG, Choo J, Jung J, Kang T. Surface-enhanced Raman scattering-based immunoassay for severe acute respiratory syndrome coronavirus 2. Biosens Bioelectron 2022; 202:114008. [PMID: 35086030 PMCID: PMC8770391 DOI: 10.1016/j.bios.2022.114008] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/11/2022] [Accepted: 01/13/2022] [Indexed: 02/07/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected humans worldwide for over a year now. Although various tests have been developed for the detection of SARS-CoV-2, advanced sensing methods are required for the diagnosis, screening, and surveillance of coronavirus disease 2019 (COVID-19). Here, we report a surface-enhanced Raman scattering (SERS)-based immunoassay involving an antibody pair, SERS-active hollow Au nanoparticles (NPs), and magnetic beads for the detection of SARS-CoV-2. The selected antibody pair against the SARS-CoV-2 antigen, along with the magnetic beads, facilitates the accurate direct detection of the virus. The hollow Au NPs exhibit strong, reproducible SERS signals, allowing sensitive quantitative detection of SARS-CoV-2. This assay had detection limits of 2.56 fg/mL for the SARS-CoV-2 antigen and 3.4 plaque-forming units/mL for the SARS-CoV-2 lysates. Furthermore, it facilitated the identification of SARS-CoV-2 in human nasopharyngeal aspirates and diagnosis of COVID-19 within 30 min using a portable Raman device. Thus, this assay can be potentially used for the diagnosis and prevention of COVID-19.
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Affiliation(s)
- Hyunjung Cha
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Hyeran Kim
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Younju Joung
- Department of Chemistry, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Hyunju Kang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Jeong Moon
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea; Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyowon Jang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Sohyun Park
- Department of Chemistry, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 56212, Republic of Korea
| | - In-Chul Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 56212, Republic of Korea
| | - Sunjoo Kim
- Department of Laboratory Medicine, Gyeongsang National University College of Medicine, Jinju, 52828, Republic of Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Sun-Woo Yoon
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Sung-Gyu Park
- Nano-Bio Convergence Department, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Kyeonghye Guk
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea; Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jaebum Choo
- Department of Chemistry, Chung-Ang University, Seoul, 06974, Republic of Korea.
| | - Juyeon Jung
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea.
| | - Taejoon Kang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea.
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12
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Mitchell D, Kwon HJ, Kubica PA, Huff WX, O’Regan R, Dey M. Brain metastases: An update on the multi-disciplinary approach of clinical management. Neurochirurgie 2022; 68:69-85. [PMID: 33864773 PMCID: PMC8514593 DOI: 10.1016/j.neuchi.2021.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 02/04/2021] [Revised: 03/16/2021] [Accepted: 04/03/2021] [Indexed: 01/03/2023]
Abstract
IMPORTANCE Brain metastasis (BM) is the most common malignant intracranial neoplasm in adults with over 100,000 new cases annually in the United States and outnumbering primary brain tumors 10:1. OBSERVATIONS The incidence of BM in adult cancer patients ranges from 10-40%, and is increasing with improved surveillance, effective systemic therapy, and an aging population. The overall prognosis of cancer patients is largely dependent on the presence or absence of brain metastasis, and therefore, a timely and accurate diagnosis is crucial for improving long-term outcomes, especially in the current era of significantly improved systemic therapy for many common cancers. BM should be suspected in any cancer patient who develops new neurological deficits or behavioral abnormalities. Gadolinium enhanced MRI is the preferred imaging technique and BM must be distinguished from other pathologies. Large, symptomatic lesion(s) in patients with good functional status are best treated with surgery and stereotactic radiosurgery (SRS). Due to neurocognitive side effects and improved overall survival of cancer patients, whole brain radiotherapy (WBRT) is reserved as salvage therapy for patients with multiple lesions or as palliation. Newer approaches including multi-lesion stereotactic surgery, targeted therapy, and immunotherapy are also being investigated to improve outcomes while preserving quality of life. CONCLUSION With the significant advancements in the systemic treatment for cancer patients, addressing BM effectively is critical for overall survival. In addition to patient's performance status, therapeutic approach should be based on the type of primary tumor and associated molecular profile as well as the size, number, and location of metastatic lesion(s).
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Affiliation(s)
- D Mitchell
- Department of Neurosurgery, Indiana University School of Medicine, Indiana University Purdue University Indianapolis, IN, USA
| | - HJ Kwon
- Department of Neurosurgery, Indiana University School of Medicine, Indiana University Purdue University Indianapolis, IN, USA
| | - PA Kubica
- Department of Neurosurgery, University of Wisconsin School of Medicine & Public Health, UW Carbone Cancer Center, Madison, WI, USA
| | - WX Huff
- Department of Neurosurgery, Indiana University School of Medicine, Indiana University Purdue University Indianapolis, IN, USA
| | - R O’Regan
- Department of Medicine/Hematology Oncology, University of Wisconsin School of Medicine & Public Health, UW Carbone Cancer Center, Madison, WI, USA
| | - M Dey
- Department of Neurosurgery, University of Wisconsin School of Medicine & Public Health, UW Carbone Cancer Center, Madison, WI, USA,Correspondence Should Be Addressed To: Mahua Dey, MD, University of Wisconsin School of Medicine & Public Health, 600 Highland Ave, Madison, WI 53792; Tel: 317-274-2601;
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13
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Jeon HJ, Kwon HJ, Hwang YJ, Kim SG. Unfavorable effect of high postoperative fluid balance on outcome of pancreaticoduodenectomy. Ann Surg Treat Res 2022; 102:139-146. [PMID: 35317358 PMCID: PMC8914521 DOI: 10.4174/astr.2022.102.3.139] [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: 10/14/2021] [Revised: 12/24/2021] [Accepted: 01/15/2022] [Indexed: 12/05/2022] Open
Abstract
Purpose Despite the many efforts to overcome postoperative complications, pancreaticoduodenectomy (PD) is still accompanied with considerable concerns of lethal complications. The clinical factors are known to affect postoperative outcomes such as diameter of pancreatic duct, texture of pancreas, and comorbidity of the patients are mostly uncorrectable. Thus, investigation for correctable risk factors is required. Recently, perioperative fluid volume was reported to be associated with complications after PD. This study aims to determine the relationship between postoperative fluid balance and surgical outcome after open PD. Methods We reviewed, retrospectively, 172 consecutive patients who underwent open PD in a single institution between 2015 and 2019. The status of perioperative fluid balance 2 days after surgery and clinical factors were investigated to determine the association with postoperative outcome including postoperative pancreatic fistula (POPF). According to postoperative fluid balance, patients were divided into high- and low-balance groups, and clinical features and surgical outcomes were compared between both groups. Multivariate analysis were performed to identify risk factors for POPF. Results The percentage of morbidity and the incidence of POPF were higher in the high-balance group compared to the low-balance group (61.6% vs. 37.2%, P = 0.001; 15.1% vs. 3.5%, P = 0.009). High postoperative fluid balance and the presence cardiovascular disease were correlated with POPF on multivariate analysis (odds ratio [OR], 4.574; 95% confidence interval [CI], 1.229–17.029; P = 0.023 and OR, 3.517; 95% CI, 1.209–12.017; P = 0.045). Conclusion Higher amount of postoperative fluid balance and the presence of cardiovascular disease are associated with POPF after PD.
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Affiliation(s)
- Hyun-Jeong Jeon
- Department of Surgery, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Hyung-Jun Kwon
- Department of Surgery, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Yoon-Jin Hwang
- Department of Surgery, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Sang-Geol Kim
- Department of Surgery, Kyungpook National University Chilgok Hospital, Daegu, Korea
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14
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Jeon HJ, Kwon HJ, Hwang YJ, Kim SG. Various types of reconstruction after pancreaticoduodenectomy for the patients who underwent all types of gastrectomy: a single-enter experience. Ann Surg Treat Res 2022; 102:323-327. [PMID: 35800992 PMCID: PMC9204019 DOI: 10.4174/astr.2022.102.6.323] [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: 02/25/2022] [Revised: 04/03/2022] [Accepted: 04/12/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose The incidence of patients requiring pancreaticoduodenectomy (PD) following any type of gastrectomy is increasing as the population of elderly patients is increasing, especially in endemic areas of gastric cancer such as Korea. All types of gastrectomy can be categorized as subtotal gastrectomy with Billroth I (BI), Billroth II (BII), and total gastrectomy with Roux-en-Y anastomosis. In this paper, we reviewed our experiences of PD for patients who previously underwent gastrectomy. Methods We reviewed the medical records of the patients who underwent PD following any type of gastrectomy among 505 consecutive patients who underwent PD in a single institution between 2011 and 2020 retrospectively. Results There were 13 patients who had undergone gastrectomy including 7 patients of BI, 1 patient of BII, and 5 patients of total gastrectomy. For all 7 patients of BI, the reconstruction was not different from conventional PD. For the 1 patient of BII, previous gastrojejunal anastomosis was preserved and reconstruction was performed in Roux-en-Y method. For the 5 patients with total gastrectomy, 2 different types of reconstruction were performed. In one patient, we removed the remaining jejunum with the specimen, and reconstruction was performed. For the other 4 patients, the remaining jejunum, distal to the Treitz ligament, was preserved and was utilized for anastomosis. Surgeries for all patients were uneventful. Conclusion PD following any type of gastrectomy can be safe. Especially, if the length of remained jejunum is long enough, its utilization for the reconstruction can be an appropriate option.
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Affiliation(s)
- Hyun-Jeong Jeon
- Department of Surgery, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Hyung-Jun Kwon
- Department of Surgery, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Yoon-Jin Hwang
- Department of Surgery, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Sang Geol Kim
- Department of Surgery, Kyungpook National University Chilgok Hospital, Daegu, Korea
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15
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Jeon HJ, Kwon HJ, Kim SG, Hwang YJ. Malignant melanoma of the gallbladder: A case report and literature review. Ann Hepatobiliary Pancreat Surg 2021; 25:445-449. [PMID: 34402451 PMCID: PMC8382871 DOI: 10.14701/ahbps.2021.25.3.445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/17/2021] [Accepted: 02/01/2021] [Indexed: 11/17/2022] Open
Abstract
Metastatic melanoma of the gallbladder is extremely rare. It has a poor prognosis. Its optimal treatment remains unclear. Surgical resection is generally considered the mainstay of treatment. However, there are no standards to guide the choice between open surgery and laparoscopic surgery. Criteria for the extent of surgical dissection have not been established yet either. We report a patient diagnosed with gallbladder cancer who underwent extended cholecystectomy but had metastatic melanoma at the final biopsy. We reviewed the literature on the treatment of metastatic melanoma in the gallbladder and compared it with our case to determine a treatment strategy.
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Affiliation(s)
- Hyun-Jeong Jeon
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Hyung-Jun Kwon
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Sang-Geol Kim
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Yoon-Jin Hwang
- Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
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16
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Abstract
We developed a new surface-enhanced Raman scattering (SERS)-based aptasensor platform capable of quantifying severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lysates with a high sensitivity. In this study, a spike protein deoxyribonucleic acid (DNA) aptamer was used as a receptor, and a self-grown Au nanopopcorn surface was used as a SERS detection substrate for the sensible detection of SARS-CoV-2. A quantitative analysis of the SARS-CoV-2 lysate was performed by monitoring the change in the SERS peak intensity caused by the new binding between the aptamer DNA released from the Au nanopopcorn surface and the spike protein in the SARS-CoV-2 virion. This technique enables detecting SARS-CoV-2 with a limit of detection (LoD) of less than 10 PFU/mL within 15 min. The results of this study demonstrate the possibility of a clinical application that can dramatically improve the detection limit and accuracy of the currently commercialized SARS-CoV-2 immunodiagnostic kit.
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Affiliation(s)
- Hao Chen
- Department of Chemistry, Chung-Ang
University, Seoul 06974, South Korea
| | - Sung-Gyu Park
- Advanced Nano-Surface Department, Korea
Institute of Materials Science (KIMS), Changwon 51508, South
Korea
| | - Namhyun Choi
- Department of Chemistry, Chung-Ang
University, Seoul 06974, South Korea
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center,
Korea Research Institute of Bioscience and Biotechnology
(KRIBB), Jeongup 56212, South Korea
| | - Taejoon Kang
- Bionanotechnology Research Center, Korea
Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141,
South Korea
| | - Mi-Kyung Lee
- Department of Laboratory Medicine,
Chung-Ang University College of Medicine, Seoul 06973,
South Korea
| | - Jaebum Choo
- Department of Chemistry, Chung-Ang
University, Seoul 06974, South Korea
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17
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Lee BW, Ha JH, Ji Y, Jeong SH, Kim JH, Lee J, Park JY, Kwon HJ, Jung K, Kim JC, Ryu YB, Lee IC. Alnus hirsuta (Spach) Rupr. Attenuates Airway Inflammation and Mucus Overproduction in a Murine Model of Ovalbumin-Challenged Asthma. Front Pharmacol 2021; 12:614442. [PMID: 33643046 PMCID: PMC7902870 DOI: 10.3389/fphar.2021.614442] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/05/2021] [Indexed: 02/05/2023] Open
Abstract
Alnus hirsuta (Spach) Rupr. (AH), a member of the Betulaceae family, is widely used in Eastern Asia of as a source of medicinal compounds for the treatment of hemorrhage, diarrhea, and alcoholism. In this study, we investigated the protective effects of a methanolic extract of AH branches against airway inflammation and mucus production in tumor necrosis factor (TNF)-α-stimulated NCI-H292 cells and in an ovalbumin (OVA)-challenged allergic asthma mouse model. Female BALB/c mice were injected with OVA (40 μg) and aluminum hydroxide (2 mg) on days 0 and 14 to induce allergic airway inflammation. The mice were then challenged with 1% OVA from days 21–23. Mice were treated with AH (50 and 100 mg/kg/day; 2% DMSO) or dexamethasone (positive control; 3 mg/kg/day) from days 18–23. AH treatment effectively attenuated airway resistance/hyperresponsiveness and reduced levels of T helper type 2 (Th2) cytokines, eotaxins, and number of inflammatory cells in bronchoalveolar lavage fluid, and immunoglobulin E in serums of OVA-challenged mice. In histological analysis, AH treatment significantly inhibited airway inflammation and mucus production in OVA-challenged mice. AH treatment downregulated the phosphorylation of I kappa B-alpha, p65 nuclear factor-kappa B (p65NF-κB), and mitogen-activated protein kinases with suppression of mucin 5AC (MUC5AC) in lung tissue. Moreover, AH treatment decreased the levels of pro-inflammatory cytokines and Th2 cytokines, as well as MUC5AC expression, and inhibited the phosphorylation of p65NF-κB in TNF-α-stimulated NCI-H292 cells. These results indicate that AH might represent a useful therapeutic agent for the treatment of allergic asthma.
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Affiliation(s)
- Ba-Wool Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea.,Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea
| | - Ji-Hye Ha
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea.,Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea
| | - Yeongseon Ji
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Seong-Hun Jeong
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Ju-Hong Kim
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Jihye Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Ji-Young Park
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Kyungsook Jung
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Jong-Choon Kim
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea
| | - Young-Bae Ryu
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - In-Chul Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
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18
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Cho KH, Kim JR, Lee IC, Kwon HJ. Native High-Density Lipoproteins (HDL) with Higher Paraoxonase Exerts a Potent Antiviral Effect against SARS-CoV-2 (COVID-19), While Glycated HDL Lost the Antiviral Activity. Antioxidants (Basel) 2021; 10:antiox10020209. [PMID: 33535459 PMCID: PMC7912765 DOI: 10.3390/antiox10020209] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/15/2021] [Accepted: 01/28/2021] [Indexed: 02/07/2023] Open
Abstract
Human high-density lipoproteins (HDL) show a broad spectrum of antiviral activity in terms of anti-infection. Although many reports have pointed out a correlation between a lower serum HDL-C and a higher risk of COVID-19 infection and progression, the in vitro antiviral activity of HDL against SARS-CoV-2 has not been reported. HDL functionality, such as antioxidant and anti-infection, can be impaired by oxidation and glycation and a change to pro-inflammatory properties. This study compared the antiviral activity of native HDL with glycated HDL via fructosylation and native low-density lipoproteins (LDL). After 72 h of fructosylation, glycated HDL showed a typical multimerized protein pattern with an elevation of yellowish fluorescence. Glycated HDL showed a smaller particle size with an ambiguous shape and a loss of paraoxonase activity up to 51% compared to native HDL. The phagocytosis of acetylated LDL was accelerated 1.3-fold by glycated HDL than native HDL. Native HDL showed 1.7 times higher cell viability and 3.6 times higher cytopathic effect (CPE) inhibition activity against SARS-CoV-2 than that of glycated HDL under 60 μg/mL (approximately final 2.2 μM) in a Vero E6 cell. Native HDL showed EC50 = 52.1 ± 1.1 μg/mL (approximately final 1.8 μM) for the CPE and CC50 = 79.4 ± 1.5 μg/mL (around 2.8 μM). The selective index (SI) of native HDL was calculated to be 1.52. In conclusion, native HDL shows potent antiviral activity against SARS-CoV-2 without cytotoxicity, while the glycation of HDL impairs its antiviral activity. These results may explain why patients with diabetes mellitus or hypertension are more sensitive to a COVID-19 infection and have a higher risk of mortality.
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Affiliation(s)
- Kyung-Hyun Cho
- Medical Innovation Complex, Korea Research Institute of Lipoproteins, Daegu 41061, Korea
- LipoLab, Yeungnam University, Gyeongsan 712-749, Korea
- Department of Biochemistry and Molecular Biology, Smart-Aging Convergence Research Center, College of Medicine, Yeungnam University, Daegu 705-717, Korea;
- Correspondence: ; Tel.: +82-53-964-1990; Fax: +82-53-965-1992
| | - Jae-Ryong Kim
- Department of Biochemistry and Molecular Biology, Smart-Aging Convergence Research Center, College of Medicine, Yeungnam University, Daegu 705-717, Korea;
| | - In-Chul Lee
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Korea; (I.-C.L.); (H.-J.K.)
| | - Hyung-Jun Kwon
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Korea; (I.-C.L.); (H.-J.K.)
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19
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Moon J, Kwon HJ, Yong D, Lee IC, Kim H, Kang H, Lim EK, Lee KS, Jung J, Park HG, Kang T. Colorimetric Detection of SARS-CoV-2 and Drug-Resistant pH1N1 Using CRISPR/dCas9. ACS Sens 2020; 5:4017-4026. [PMID: 33270431 DOI: 10.1021/acssensors.0c0192910.1021/acssensors.0c01929.s001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Viruses have been a continuous threat to human beings. The coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has led to a pandemic that is still ongoing worldwide. Previous pandemic influenza A virus (pH1N1) might be re-emerging through a drug-resistant mutation. We report a colorimetric viral detection method based on the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 endonuclease dead (dCas9) system. In this method, RNA in the viral lysate was directly recognized by the CRISPR/dCas9 system with biotin-protospacer adjacent motif (PAM)-presenting oligonucleotide (PAMmer). Streptavidin-horseradish peroxidase then bound to biotin-PAMmer, inducing a color change through the oxidation of 3,3',5,5'-tetramethylbenzidine. Using the developed method, we successfully identified SARS-CoV-2, pH1N1, and pH1N1/H275Y viruses by the naked eye. Moreover, the detection of viruses in human nasopharyngeal aspirates and sputum was demonstrated. Finally, clinical samples from COVID-19 patients led to a successful diagnosis. We anticipate that the current method can be employed for simple and accurate diagnosis of viruses.
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Affiliation(s)
- Jeong Moon
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | | | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | | | | | | | - Eun-Kyung Lim
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | | | - Juyeon Jung
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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20
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Moon J, Kwon HJ, Yong D, Lee IC, Kim H, Kang H, Lim EK, Lee KS, Jung J, Park HG, Kang T. Colorimetric Detection of SARS-CoV-2 and Drug-Resistant pH1N1 Using CRISPR/dCas9. ACS Sens 2020; 5:4017-4026. [PMID: 33270431 PMCID: PMC7724983 DOI: 10.1021/acssensors.0c01929] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/19/2020] [Indexed: 12/13/2022]
Abstract
Viruses have been a continuous threat to human beings. The coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has led to a pandemic that is still ongoing worldwide. Previous pandemic influenza A virus (pH1N1) might be re-emerging through a drug-resistant mutation. We report a colorimetric viral detection method based on the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 endonuclease dead (dCas9) system. In this method, RNA in the viral lysate was directly recognized by the CRISPR/dCas9 system with biotin-protospacer adjacent motif (PAM)-presenting oligonucleotide (PAMmer). Streptavidin-horseradish peroxidase then bound to biotin-PAMmer, inducing a color change through the oxidation of 3,3',5,5'-tetramethylbenzidine. Using the developed method, we successfully identified SARS-CoV-2, pH1N1, and pH1N1/H275Y viruses by the naked eye. Moreover, the detection of viruses in human nasopharyngeal aspirates and sputum was demonstrated. Finally, clinical samples from COVID-19 patients led to a successful diagnosis. We anticipate that the current method can be employed for simple and accurate diagnosis of viruses.
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Affiliation(s)
- Jeong Moon
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
- Department of Chemical and
Biomolecular Engineering, KAIST, 291
Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of
Korea
| | - Hyung-Jun Kwon
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and
Research Institute of Bacterial Resistance, Yonsei
University College of Medicine, 50-1 Yonsei-ro,
Seodaemun-gu, Seoul 03722, Republic of Korea
| | - In-Chul Lee
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Hongki Kim
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Hyunju Kang
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology,
KRIBB School of Biotechnology, UST,
217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of
Korea
| | - Kyu-Sun Lee
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Juyeon Jung
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology,
KRIBB School of Biotechnology, UST,
217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of
Korea
| | - Hyun Gyu Park
- Department of Chemical and
Biomolecular Engineering, KAIST, 291
Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of
Korea
| | - Taejoon Kang
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
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21
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Kim M, Lee S, Lim H, Lee J, Park JY, Kwon HJ, Lee IC, Ryu YB, Kim J, Shin T, Ahn G, Rho MC, Jung K. Oleanolic Acid Acetate Alleviates Symptoms of Experimental Autoimmune Encephalomyelitis in Mice by Regulating Toll-Like Receptor 2 Signaling. Front Pharmacol 2020; 11:556391. [PMID: 33013394 PMCID: PMC7494849 DOI: 10.3389/fphar.2020.556391] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/18/2020] [Indexed: 02/06/2023] Open
Abstract
Toll-like receptor 2 (TLR2) is expressed by several immune cells in the central nervous system and plays an important role in neuroinflammation. TLR2 upregulation has been reported in multiple sclerosis patients and in experimental autoimmune encephalomyelitis (EAE), a mouse model for multiple sclerosis. Therefore, modulating TLR2 signaling can be an effective treatment strategy against MS. Oleanolic acid acetate (OAA) has antiinflammatory and immunomodulatory effects. Hence, this study aimed to examine the effects of OAA on TLR2 signaling and neuroinflammation in EAE. EAE was induced in C57/BL6 mice using synthesized myelin oligodendrocyte glycoprotein (MOG)35-55 peptide, and OAA was administered daily. Hind limb paralysis and inflammatory cell infiltration were observed in the spinal cords of EAE mice. Moreover, T-cell proliferation was significantly stimulated in splenic cells from EAE mice. The expression of proinflammatory cytokines in the spinal cord was upregulated, and their serum protein levels were increased in EAE mice. Furthermore, upregulation of TLR2 and downstream signaling molecules was observed in the spinal cord. These pathological changes were reversed by OAA treatment. Our results suggest that OAA might have promising therapeutic properties and that the TLR signaling pathway is an effective therapeutic target against multiple sclerosis.
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Affiliation(s)
- Minju Kim
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, South Korea
| | - Soyoung Lee
- Immunoregulatory Materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Hyungjin Lim
- Immunoregulatory Materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Jihye Lee
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Ji-Young Park
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Hyung-Jun Kwon
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - In-Chul Lee
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Young-Bae Ryu
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Jeongtae Kim
- Department of Anatomy, Kosin University College of Medicine, Busan, South Korea
| | - Taekyun Shin
- Department of Veterinary Anatomy, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, South Korea
| | - Ginnae Ahn
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, South Korea
| | - Mun-Chual Rho
- Immunoregulatory Materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
| | - Kyungsook Jung
- Functional Biomaterials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, South Korea
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22
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Lee BW, Ha JH, Shin HG, Jeong SH, Kim JH, Lee J, Park JY, Kwon HJ, Jung K, Lee WS, Ryu YB, Jeong JH, Lee IC. Lindera obtusiloba Attenuates Oxidative Stress and Airway Inflammation in a Murine Model of Ovalbumin-Challenged Asthma. Antioxidants (Basel) 2020; 9:antiox9070563. [PMID: 32605045 PMCID: PMC7402094 DOI: 10.3390/antiox9070563] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/17/2020] [Accepted: 06/24/2020] [Indexed: 12/13/2022] Open
Abstract
Lindera obtusiloba is widespread in northeast Asia and used for treatment of improvement of blood circulation and anti-inflammation. In this study, we investigated anti-inflammatory and anti-oxidant effects of the methanolic extract of L. obtusiloba leaves (LOL) in an ovalbumin (OVA)-challenged allergic asthma model and tumor necrosis factor (TNF)-α-stimulated NCI-H292 cell. Female BALB/c mice were sensitized with OVA by intraperitoneal injection on days 0 and 14, and airway-challenged with OVA from days 21 to 23. Mice were administered 50 and 100 mg/kg of LOL by oral gavage 1 h before the challenge. LOL treatment effectively decreased airway hyper-responsiveness and inhibited inflammatory cell recruitment, Th2 cytokines, mucin 5AC (MUC5AC) in bronchoalveolar lavage fluid in OVA-challenged mice, which were accompanied by marked suppression of airway inflammation and mucus production in the lung tissue. LOL pretreatment inhibited the phosphorylation of mitogen-activated protein kinases (MAPKs) and nuclear factor-kappa B (NF-κB) with suppression of activator protein (AP)-1 and MUC5AC in the lung tissue. LOL also down-regulated expression of inflammatory cytokines, and inhibited the activation of NF-κB in TNF-α-stimulated NCI-H292 cells. LOL elevated the translocation of nuclear factor-erythroid 2-related factor (Nrf-2) into nucleus concurrent with increase of heme oxyngenase-1 (HO-1) and NAD(P)H quinine oxidoreductase 1 (NQO1). Moreover, LOL treatment exhibited a marked increase in the anti-oxidant enzymes activities, whereas effectively suppressed the production of reactive oxygen species and nitric oxide, as well as lipid peroxidation in lung tissue of OVA-challenged mice and TNF-α-stimulated NCI-H292 cells. These findings suggest that LOL might serve as a therapeutic agent for the treatment of allergic asthma.
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Affiliation(s)
- Ba-Wool Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea
| | - Ji-Hye Ha
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea
| | - Han-Gyo Shin
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Seong-Hun Jeong
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Ju-Hong Kim
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Jihye Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Ji-Young Park
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Kyungsook Jung
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Woo-Song Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Young-Bae Ryu
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Jae-Ho Jeong
- Department of Microbiology, Chonnam National University Medical School, Gwangju 61186, Korea
- Correspondence: (J.-H.J.); (I.-C.L.); Tel.: +82-61-379-2747 (J.-H.J.); +82-63-570-5241 (I.-C.L.); Fax: +82-62-232-9708 (J.-H.J.); +82-63-570-5239 (I.-C.L.)
| | - In-Chul Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
- Correspondence: (J.-H.J.); (I.-C.L.); Tel.: +82-61-379-2747 (J.-H.J.); +82-63-570-5241 (I.-C.L.); Fax: +82-62-232-9708 (J.-H.J.); +82-63-570-5239 (I.-C.L.)
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23
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Kwon W, Kim H, Han Y, Hwang YJ, Kim SG, Kwon HJ, Vinuela E, Járufe N, Roa JC, Han IW, Heo JS, Choi SH, Choi DW, Ahn KS, Kang KJ, Lee W, Jeong CY, Hong SC, Troncoso AT, Losada HM, Han SS, Park SJ, Kim SW, Yanagimoto H, Endo I, Kubota K, Wakai T, Ajiki T, Adsay NV, Jang JY. Role of tumour location and surgical extent on prognosis in T2 gallbladder cancer: an international multicentre study. Br J Surg 2020; 107:1334-1343. [PMID: 32452559 DOI: 10.1002/bjs.11618] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/29/2020] [Accepted: 03/16/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND In gallbladder cancer, stage T2 is subdivided by tumour location into lesions on the peritoneal side (T2a) or hepatic side (T2b). For tumours on the peritoneal side (T2a), it has been suggested that liver resection may be omitted without compromising the prognosis. However, data to validate this argument are lacking. This study aimed to investigate the prognostic value of tumour location in T2 gallbladder cancer, and to clarify the adequate extent of surgical resection. METHODS Clinical data from patients who underwent surgery for gallbladder cancer were collected from 14 hospitals in Korea, Japan, Chile and the USA. Survival and risk factor analyses were conducted. RESULTS Data from 937 patients were available for evaluation. The overall 5-year disease-free survival rate was 70·6 per cent, 74·5 per cent for those with T2a and 65·5 per cent among those with T2b tumours (P = 0·028). Regarding liver resection, extended cholecystectomy was associated with a better 5-year disease-free survival rate than simple cholecystectomy (73·0 versus 61·5 per cent; P = 0·012). The 5-year disease-free survival rate was marginally better for extended than simple cholecystectomy in both T2a (76·5 versus 66·1 per cent; P = 0·094) and T2b (68·2 versus 56·2 per cent; P = 0·084) disease. Five-year disease-free survival rates were similar for extended cholecystectomies including liver wedge resection versus segment IVb/V segmentectomy (74·1 versus 71·5 per cent; P = 0·720). In multivariable analysis, independent risk factors for recurrence were presence of symptoms (hazard ratio (HR) 1·52; P = 0·002), R1 resection (HR 1·96; P = 0·004) and N1/N2 status (N1: HR 3·40, P < 0·001; N2: HR 9·56, P < 0·001). Among recurrences, 70·8 per cent were metastatic. CONCLUSION Tumour location was not an independent prognostic factor in T2 gallbladder cancer. Extended cholecystectomy was marginally superior to simple cholecystectomy. A radical operation should include liver resection and adequate node dissection.
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Affiliation(s)
- W Kwon
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - H Kim
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Y Han
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Y J Hwang
- School of Medicine, Kyungpook National University, Daegu, South Korea.,Kyungpook National University Chilgok Hospital, Daegu, South Korea
| | - S G Kim
- School of Medicine, Kyungpook National University, Daegu, South Korea.,Kyungpook National University Chilgok Hospital, Daegu, South Korea
| | - H J Kwon
- School of Medicine, Kyungpook National University, Daegu, South Korea.,Kyungpook National University Chilgok Hospital, Daegu, South Korea
| | - E Vinuela
- Department of Digestive Surgery, Santiago, Chile
| | - N Járufe
- Department of Digestive Surgery, Santiago, Chile
| | - J C Roa
- Pathology, Faculty of Medicine, Catholic University of Chile, Santiago, Chile
| | - I W Han
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University College of Medicine, Seoul, South Korea
| | - J S Heo
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University College of Medicine, Seoul, South Korea
| | - S-H Choi
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University College of Medicine, Seoul, South Korea
| | - D W Choi
- Department of Surgery, Samsung Medical Centre, Sungkyunkwan University College of Medicine, Seoul, South Korea
| | - K S Ahn
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Keimyung University Dongsan Medical Centre, Daegu, South Korea
| | - K J Kang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Keimyung University Dongsan Medical Centre, Daegu, South Korea
| | - W Lee
- Department of Surgery, Gyeongsang National University College of Medicine, Jinju, South Korea
| | - C-Y Jeong
- Department of Surgery, Gyeongsang National University College of Medicine, Jinju, South Korea
| | - S-C Hong
- Department of Surgery, Gyeongsang National University College of Medicine, Jinju, South Korea
| | - A T Troncoso
- Department of Surgery, Universidad de la Frontera, Temuco, Chile
| | - H M Losada
- Department of Surgery, Universidad de la Frontera, Temuco, Chile
| | - S-S Han
- Department of Surgery, Centre for Liver Cancer, National Cancer Centre, Goyang, South Korea
| | - S-J Park
- Department of Surgery, Centre for Liver Cancer, National Cancer Centre, Goyang, South Korea
| | - S-W Kim
- Department of Surgery, Centre for Liver Cancer, National Cancer Centre, Goyang, South Korea
| | - H Yanagimoto
- Department of Surgery, Kansai Medical University, Hirakata, Japan
| | - I Endo
- Department of Gastroenterological Surgery, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - K Kubota
- Department of Gastroenterological Surgery, Dokkyo Medical University, Tochigi, Japan
| | - T Wakai
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - T Ajiki
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - N V Adsay
- Department of Pathology, Koc University, Istanbul, Turkey.,Department of Pathology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - J-Y Jang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
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24
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Ko JW, Kwon HJ, Seo CS, Choi SJ, Shin NR, Kim SH, Kim YH, Kim JC, Kim MS, Shin IS. 4-Hydroxycinnamic acid suppresses airway inflammation and mucus hypersecretion in allergic asthma induced by ovalbumin challenge. Phytother Res 2019; 34:624-633. [PMID: 31724257 DOI: 10.1002/ptr.6553] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 09/17/2019] [Accepted: 11/01/2019] [Indexed: 02/06/2023]
Abstract
In this study, we investigated whether 4-hydroxycinnamic acid (HA) has a palliative effect on asthmatic inflammatory responses using a mouse model of ovalbumin (OVA)-induced allergic asthma. The mice were divided into five groups, each consisting of seven females (normal control phosphate-buffered saline); OVA (OVA sensitization/challenge); dexamethasone (DEX, OVA sensitization/challenge + dexamethasone 3 mg/kg); HA-10 and HA-20 OVA sensitization/challenge + HA 10 and 20 mg/kg, respectively). Mice treated with HA showed a reduction in airway hyperresponsiveness and in the number of inflammatory cells in bronchoalveolar lavage fluid (BALF) compared with asthmatic control. HA treatment also reduced the levels of interleukin (IL)-5 and IL-13 in BALF and of OVA-specific immunoglobulin E in the serum compared with asthmatic control. HA treatment relieved airway inflammation and mucus overproduction caused by OVA exposure. Additionally, HA inhibited the increases in levels of nuclear factor kappa B, inducible nitric oxide synthase, and cyclooxygenase-2 that normally occur after OVA exposure. HA treatment also reduced the activity and protein level of matrix metalloproteinase-9. Taken together, HA effectively suppressed asthmatic airway inflammation and mucus production caused by OVA exposure. These findings indicate that HA has the potential to be used as a therapeutic agent for asthma.
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Affiliation(s)
- Je-Won Ko
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, Korea
| | - Hyung-Jun Kwon
- Natural Product Research Center, Korea Institute of Bioscience and Biotechnology, Jeongeup, -si, Korea
| | - Chang-Seob Seo
- K-herb Research Center, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Seong-Jin Choi
- Jeonbuk Department of Inhalation Research, Korea Institute of Toxicology, Jeongeup, Korea.,Department of Chemical Material Assessment, Korea Environment Corporation, Incheon, Korea
| | - Na-Rae Shin
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, Korea
| | - Sung-Hwan Kim
- Jeonbuk Department of Inhalation Research, Korea Institute of Toxicology, Jeongeup, Korea.,Human and Environmental Toxicology, University of Science and Technology, Daejeon, Korea
| | - Yong-Hyun Kim
- Jeonbuk Department of Inhalation Research, Korea Institute of Toxicology, Jeongeup, Korea.,Human and Environmental Toxicology, University of Science and Technology, Daejeon, Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, Korea
| | - Min-Seok Kim
- Jeonbuk Department of Inhalation Research, Korea Institute of Toxicology, Jeongeup, Korea
| | - In-Sik Shin
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, Korea
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25
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Kwon HJ, Jeon J, Kim DH, Jang HR, Sung HH, Han DH, Park JB, Lee JE, Huh W, Kim SJ, Kim YG, Kim DJ, Oh HY. Clinical Impact of a Protocolized Kidney Donor Follow-up System. Transplant Proc 2019; 51:692-700. [PMID: 30979452 DOI: 10.1016/j.transproceed.2018.10.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 10/23/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND Adequate kidney donor management after donation is increasingly emphasized due to concerns of renal function impairment after nephrectomy with increasing life expectancy. In this study, the clinical impact of a protocolized kidney donor follow-up system by nephrologists was evaluated. METHODS A total of 427 living kidney donors underwent nephrectomy from January 2010 to December 2014 and were followed for at least 2 years at the Samsung Medical Center. Donors were followed-up by nephrologists after the establishment of a donor clinic with systemized protocols in January 2013. The primary outcomes were incidence of post-donation low estimated glomerular filtration rate (eGFR) and renal function adaptability. Secondary outcomes were changes in compliance and incidence of hyperuricemia and microalbuminuria. RESULTS The patients were divided into 2 groups according to the time of nephrectomy: the pre-donor clinic period (n = 182) and the donor clinic period (n = 172). Preoperative eGFR in patients in the pre-donor clinic period was higher than that in patients in the donor clinic period. After donation, poor renal adaptation was less frequent in the donor clinic period compared to the pre-donor clinic period. Low eGFR tended to be less common during the donor clinic period. Shorter mean outpatient clinic visit intervals with more visits within 6 months after donation and earlier detection of de novo hyperuricemia were found during the donor clinic period. CONCLUSION A protocolized donor clinic run by nephrologists may improve post-nephrectomy renal outcomes and compliance and facilitate better management of potential risk factors of chronic kidney disease in donors.
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Affiliation(s)
- H J Kwon
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J Jeon
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - D H Kim
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H R Jang
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - H H Sung
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - D H Han
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J B Park
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J E Lee
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - W Huh
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S J Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y G Kim
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - D J Kim
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H Y Oh
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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26
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Peng C, de Sousa FB, Gan HY, Kwon HJ, Park S, Kilpatrick-Liverman L, Wang W, Lavender S, Pilch S, Han J. Enhanced Delivery of F -, Ca 2+, K +, and Na + Ions into Enamel by Electrokinetic Flows. J Dent Res 2019; 98:430-436. [PMID: 30676839 DOI: 10.1177/0022034518818463] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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
As the outermost layer of the tooth crown, dental enamel is the most mineralized tissue in mammals, consisting of hydroxyapatite crystallites separated by long and narrow nanochannels. A major challenge in dentistry is how various molecules can be infiltrated into these nanopores in an efficient and controlled way. Here we show a robust method to transport various ions of interest, such as fluoride (F-), potassium (K+), calcium (Ca++), and sodium (Na+), into these nanopores by electrokinetic flows. It is verified by fluorescence microscopy, laser-scanning confocal microscopy, mass spectrometry, and ion selective electrode technique. Different ions are demonstrated to infiltrate through the entire depth of the enamel layer (~1 mm), which is significantly enhanced penetration compared with diffusion-based infiltration. Meanwhile, transport depth and speed can be controlled by infiltration time and applied voltage. This is the first demonstration of reliably delivering both anions and cations into the enamel nanopores. This technique opens opportunities in caries prevention, remineralization, tooth whitening, and nanomedicine delivery in clinical dentistry, as well as other delivery challenges into various biomaterials such as bones.
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Affiliation(s)
- C Peng
- 1 Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - F B de Sousa
- 2 Department of Morphology, Health Sciences Center, Fereral University of Paraiba, Joao Pessoa, Cidade Universitaria, Paraiba, Brazil
| | - H Y Gan
- 3 Engineering Cluster, Singapore Institute of Technology, Singapore
| | - H J Kwon
- 1 Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - S Park
- 4 Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA, USA
| | | | - W Wang
- 5 Colgate-Palmolive Technology Center, Piscataway, NJ, USA
| | - S Lavender
- 5 Colgate-Palmolive Technology Center, Piscataway, NJ, USA
| | - S Pilch
- 5 Colgate-Palmolive Technology Center, Piscataway, NJ, USA
| | - J Han
- 1 Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.,6 Department of Electric Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA.,7 Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
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27
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Shin NR, Kwon HJ, Ko JW, Kim JS, Lee IC, Kim JC, Kim SH, Shin IS. S-Allyl cysteine reduces eosinophilic airway inflammation and mucus overproduction on ovalbumin-induced allergic asthma model. Int Immunopharmacol 2019; 68:124-130. [PMID: 30622029 DOI: 10.1016/j.intimp.2019.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 12/12/2018] [Accepted: 01/01/2019] [Indexed: 01/31/2023]
Abstract
S-Allyl cysteine (SAC) is an active component in garlic and has various pharmacological effects, such as anti-inflammatory, anti-oxidant, and anti-cancer activities. In this study, we explored the suppressive effects of SAC on allergic airway inflammation induced in an ovalbumin (OVA)-induced asthma mouse model. To induce asthma, BALB/c mice were sensitized to OVA on days 0 and 14 by intraperitoneal injection and exposed to OVA from days 21 to 23 using a nebulizer. SAC was administered to mice by oral gavage at a dose of 10 or 20 mg/kg from days 18 to 23. SAC significantly reduced airway hyperresponsiveness, inflammatory cell counts, and Th2 type cytokines in bronchoalveolar lavage fluid induced by OVA exposure, which was accompanied by reduced serum OVA-specific immunoglobulin E. In histological analysis of the lung tissue, administration of SAC reduced inflammatory cell accumulation into lung tissue and mucus production in airway goblet cells induced by OVA exposure. Additionally, SAC significantly decreased MUC5AC expression and nuclear factor-κB phosphorylation induced by OVA exposure. In summary, SAC effectively suppressed allergic airway inflammation and mucus production in OVA-challenged asthmatic mice. Therefore, SAC shows potential for use in treating allergic asthma.
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Affiliation(s)
- Na-Rae Shin
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Hyung-Jun Kwon
- Natural Product Research Center, Jeonbuk Branch, Korea Research Institute of Biosciences and Biotechnology, Ipsingil 181, Jeongeup, Jeollabuk-do 56212, Republic of Korea
| | - Je-Won Ko
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Joong-Sun Kim
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Geonjae-ro 177, Naju-si, Jeollanam-do 58245, Republic of Korea
| | - In-Chul Lee
- Natural Product Research Center, Jeonbuk Branch, Korea Research Institute of Biosciences and Biotechnology, Ipsingil 181, Jeongeup, Jeollabuk-do 56212, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Sung-Hwan Kim
- Jeonbuk Department of Inhalation Research, Korea Institute of Toxicology, 30 Baekhak1-gil, Jeongeup, Jeollabuk-do 56212, Republic of Korea.
| | - In-Sik Shin
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea.
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28
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Kim BR, Park JY, Jeong HJ, Kwon HJ, Park SJ, Lee IC, Ryu YB, Lee WS. Design, synthesis, and evaluation of curcumin analogues as potential inhibitors of bacterial sialidase. J Enzyme Inhib Med Chem 2018; 33:1256-1265. [PMID: 30126306 PMCID: PMC6104608 DOI: 10.1080/14756366.2018.1488695] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 06/05/2018] [Accepted: 06/12/2018] [Indexed: 11/06/2022] Open
Abstract
Sialidases are key virulence factors that remove sialic acid from the host cell surface glycan, unmasking receptors that facilitate bacterial adherence and colonisation. In this study, we developed potential agents for treating bacterial infections caused by Streptococcus pneumoniae Nan A that inhibit bacterial sialidase using Turmeric and curcumin analogues. Design, synthesis, and structure analysis relationship (SAR) studies have been also described. Evaluation of the synthesised derivatives demonstrated that compound 5e was the most potent inhibitor of S. pneumoniae sialidase (IC50 = 0.2 ± 0.1 µM). This compound exhibited a 3.0-fold improvement in inhibitory activity over that of curcumin and displayed competitive inhibition. These results warrant further studies confirming the antipneumococcal activity 5e and indicated that curcumin derivatives could be potentially used to treat sepsis by bacterial infections.
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Affiliation(s)
- Bo Ram Kim
- Bio-processing Technology Development and Support Team, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Ji-Young Park
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Hyung Jae Jeong
- Bio-processing Technology Development and Support Team, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Hyung-Jun Kwon
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Su-Jin Park
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - In-Chul Lee
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Young Bae Ryu
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Woo Song Lee
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
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29
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Kwon HJ, Kim DH, Jang HR, Jung SH, Han DH, Sung HH, Park JB, Lee JE, Huh W, Kim SJ, Kim YG, Kim DJ, Oh HY. Predictive Factors of Renal Adaptation After Nephrectomy in Kidney Donors. Transplant Proc 2017; 49:1999-2006. [PMID: 29149951 DOI: 10.1016/j.transproceed.2017.09.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 08/01/2017] [Accepted: 09/02/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Despite compensatory hyperfiltration in remaining nephrons following donor nephrectomy, some donors show impaired renal adaptation and low estimated glomerular filtration rate (eGFR). We investigated the factors predicting early renal adaptation after nephrectomy and identified kidney donors at risk of inadequate renal adaptation. METHODS A total of 265 living kidney donors from 2010 to 2013 were retrospectively analyzed. Renal function was serially followed for 6 months after the operation. Regression analyses were performed to identify the independent predictors of low eGFR (eGFR <60 mL/min/1.73 m2) and impaired renal adaptation (%Modification of Diet in Renal Disease [MDRD] <66% of baseline eGFR). RESULTS A total of 148 donors belonged to the low eGFR group, and changes in eGFR (ΔeGFR) at postoperative (PO) 1 day and 1 month were identified as independent predictors of low eGFR. Impaired renal adaptation was related to age, ΔeGFR PO 2-3 days, and ΔeGFR PO 1 month. Early renal adaptation was associated with age, male gender, and residual kidney computerized tomography angiography (CTA) volume. The best sensitivity and specificity were obtained with a cutoff value of ΔeGFR 31 at PO 1 day and 1 month for predicting low eGFR and with a value of ΔeGFR 27 at PO 2-3 days and 1 month for predicting impaired renal adaptation. CONCLUSIONS Our study showed that the degree of early renal adaptation determines subsequent renal function in kidney donors. Closer monitoring and management may be required in old or male donors with small residual CTA kidney volume as well as donors with persistent ΔeGFR >27 within 1 month of nephrectomy.
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Affiliation(s)
- H J Kwon
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Kim
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - H R Jang
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - S-H Jung
- Biostatics and Clinical Epidemiology Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Han
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - H H Sung
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J B Park
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J E Lee
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - W Huh
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S J Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Y-G Kim
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D J Kim
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - H Y Oh
- Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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30
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Kwon HJ, Brasch HD, Benison S, Marsh RW, Itinteang T, Titchener GW, Evans J, Tan ST. Erratum to "Changing prevalence and treatment outcomes of patients with p16 human papillomavirus related oropharyngeal squamous cell carcinoma in New Zealand" [Br J Oral Maxillofac Surg 54 (8) (2016) 898-903]. Br J Oral Maxillofac Surg 2017; 55:754. [PMID: 28687136 DOI: 10.1016/j.bjoms.2017.01.013] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- H J Kwon
- Department of Otolaryngology - Head and Neck Surgery, Wellington Regional Hospital, Wellington, New Zealand
| | - H D Brasch
- Gillies McIndoe Research Institute, Wellington, New Zealand; Department of Pathology, Hutt Hospital, Wellington, New Zealand
| | - S Benison
- Department of Pathology, Hutt Hospital, Wellington, New Zealand
| | - R W Marsh
- Gillies McIndoe Research Institute, Wellington, New Zealand; Auckland University, Auckland, New Zealand
| | - T Itinteang
- Gillies McIndoe Research Institute, Wellington, New Zealand
| | - G W Titchener
- Department of Otolaryngology - Head and Neck Surgery, Wellington Regional Hospital, Wellington, New Zealand
| | - J Evans
- Wellington Blood and Cancer Centre, Wellington Regional Hospital, Wellington, New Zealand
| | - S T Tan
- Gillies McIndoe Research Institute, Wellington, New Zealand; Wellington Regional Plastic, Maxillofacial & Burns Unit, Hutt Hospital, Wellington, New Zealand.
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Park JY, Hwan Lim S, Ram Kim B, Jae Jeong H, Kwon HJ, Song GY, Bae Ryu Y, Song Lee W. Sialidase inhibitory activity of diarylnonanoid and neolignan compounds extracted from the seeds of Myristica fragrans. Bioorg Med Chem Lett 2017; 27:3060-3064. [DOI: 10.1016/j.bmcl.2017.05.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/11/2017] [Accepted: 05/17/2017] [Indexed: 11/15/2022]
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Kim JY, Kim DS, Seo JY, Park JG, Alfajaro MM, Soliman M, Baek YB, Cho EH, Kwon HJ, Park SJ, Kang MI, Cho KO. Glycan-specificity of four neuraminidase-sensitive animal rotavirus strains. Vet Microbiol 2017; 207:159-163. [PMID: 28757018 DOI: 10.1016/j.vetmic.2017.06.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 05/04/2017] [Revised: 06/20/2017] [Accepted: 06/20/2017] [Indexed: 11/18/2022]
Abstract
Group A rotaviruses (RVAs) are divided into neuraminidase (NA)-sensitive and NA-insensitive strains depending upon their binding affinity to the VP8* domain in the terminal sialic acids (SAs) of cell surface carbohydrates. Although NA-sensitive strains are known to use terminal SAs as an attachment factor, the exact nature of this attachment factor is largely unknown. Here we show that the specific linkage of SA-containing glycan to glycoprotein or glycolipid is an attachment factor used by NA-sensitive porcine G9P[7] PRG9121 and G9P[23] PRG942, bovine G6P[1] NCDV, and canine G3P[3] strains. Infectivity of porcine G9P[7] and G9P[23] strains was markedly blocked by α2,3-linkage and α2,6-linkage inhibitors, indicating that these strains bind to both α2,3- and α2,6-linked SAs. However, the infectivity of bovine G6P[1] and canine G3P[3] strains was significantly reduced by α2,6-linkage inhibitor but not by α2,3-linkage blockers, demonstrating a predilection of these strains for α2,6-linked SAs. The infectivity of four NA-sensitive strains was equally reduced by inhibitors of lipid membrane and N-linked glycoprotein but not by an inhibitor of O-linked glycoprotein, indicating that these strains utilize both glycolipid and N-linked glycoprotein. Our study demonstrates that four NA-sensitive animal strains could have a strain-dependent binding preference toward α2,6-linked SAs (P[1] NCDV and P[3] CU-1 strains) or both α2,3- and α2,6-linked SAs (P[7] PRG9121 and P[23] PRG942 strains) to the glycolipid and N-linked glycoprotein.
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Affiliation(s)
- Ji-Yun Kim
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Deok-Song Kim
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Ja-Young Seo
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jun-Gyu Park
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Mia Madel Alfajaro
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Mahmoud Soliman
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Yeong-Bin Baek
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Eun-Hyo Cho
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hyung-Jun Kwon
- Eco-friendly Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 580-185, Republic of Korea
| | - Su-Jin Park
- Eco-friendly Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 580-185, Republic of Korea
| | - Mun-Il Kang
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Kyoung-Oh Cho
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea.
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Kim YY, Hwang J, Kim HS, Kwon HJ, Kim S, Lee JH, Lee JH. Genetic alterations in mesiodens as revealed by targeted next-generation sequencing and gene co-occurrence network analysis. Oral Dis 2017; 23:966-972. [PMID: 28415132 DOI: 10.1111/odi.12680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/21/2017] [Accepted: 04/06/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Mesiodens is the most common type of supernumerary tooth which includes a population prevalence of 0.15%-1.9%. Alongside evidence that the condition is heritable, mutations in single genes have been reported in few human supernumerary tooth cases. Gene sequencing methods in tradition way are time-consuming and labor-intensive, whereas next-generation sequencing and bioinformatics are cost-effective for large samples and target sizes. MATERIALS AND METHODS We describe the application of a targeted next-generation sequencing (NGS) and bioinformatics approach to samples from 17 mesiodens patients. Subjects were diagnosed on the basis of panoramic radiograph. A total of 101 candidate genes which were captured custom genes were sequenced on the Illumina HiSeq 2500. Multistep bioinformatics processing was performed including variant identification, base calling, and in silico analysis of putative disease-causing variants. RESULTS Targeted capture identified 88 non-synonymous, rare, exonic variants involving 42 of the 101 candidate genes. Moreover, we investigated gene co-occurrence relationships between the genomic alterations and identified 88 significant relationships among 18 most recurrent driver alterations. CONCLUSION Our search for co-occurring genetic alterations revealed that such alterations interact cooperatively to drive mesiodens. We discovered a gene co-occurrence network in mesiodens patients with functionally enriched gene groups in the sonic hedgehog (SHH), bone morphogenetic proteins (BMP), and wingless integrated (WNT) signaling pathways.
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Affiliation(s)
- Y Y Kim
- Institute of Oral Science, Apple Tree Dental Hospital, Ilsansuh-gu, Goyang, Korea
| | - J Hwang
- Department of IT Convergence and Engineering, Pohang University of Science and Technology, Pohang, Gyeongbuk, Korea
| | - H-S Kim
- Institute of Oral Science, Apple Tree Dental Hospital, Ilsansuh-gu, Goyang, Korea
| | - H J Kwon
- Institute of Oral Science, Apple Tree Dental Hospital, Ilsansuh-gu, Goyang, Korea
| | - S Kim
- Department of Life Science, Pohang University of Science and Technology, Pohang, Gyeongbuk, Korea
| | - J H Lee
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University College of Medicine, Dongdaemoon-gu, Seoul, Korea
| | - J H Lee
- Department of Prosthodontics, Yonsei University College of Dentistry, Seodaemoon-gu, Seoul, Korea
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No YA, Kwon HJ, Park KY, Hong SA, Seo SJ, Hong CK. Unilateral, erythematous, swollen, sclerosing patch with nodular progression on the right side of the face. Clin Exp Dermatol 2016; 41:945-947. [PMID: 27766675 DOI: 10.1111/ced.12919] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Y A No
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - H J Kwon
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K Y Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - S A Hong
- Department of Pathology, Chung-Ang University College of Medicine, Seoul, Korea
| | - S J Seo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - C K Hong
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Jeong HS, Lee J, Lim BJ, Kwon HJ, Kim YS, Kim BS, Huh KH, Kim SI, Kim MS, Jeong HJ. Concurrent Post-Transplantation Diabetes Mellitus in Renal Allograft Recipients With Immunoglobulin A Nephropathy. Transplant Proc 2016; 48:887-9. [PMID: 27234759 DOI: 10.1016/j.transproceed.2015.11.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 11/06/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND The prevalence of post-transplantation immunoglobulin A nephropathy (PTIgAN) and diabetes mellitus (PTDM) increases with time after transplantation, and recognition and management of these conditions is becoming more important in renal allograft recipients as graft survival increases. METHODS We explored the influence of concurrent PTDM on renal allograft histology and function in 111 cases with PTIgAN diagnosed from 2000 to 2010 at our institution. RESULTS Sixteen patients (14.4%) had PTDM at the time of diagnosis of PTIgAN, which increased to 28 patients (25.2%) at the last follow-up (10.4 years after transplantation). Donor ages were younger in PTIgAN patients with concurrent PTDM. However, other clinical and demographic data were not significantly different between PTIgAN patients with and without PTDM. Histologically, Banff "mm" scores were higher and "M1" of the Oxford classification was more frequent in PTIgAN patients with concurrent PTDM than in patients without PTDM, but the difference did not reach statistical significance. Serum creatinine levels and proteinuria at the time of biopsy and overall graft survival did not vary according to the presence of PTDM both at biopsy and at the last follow-up. CONCLUSIONS Concurrent PTDM does not significantly influence graft function or outcome for 10 years after transplantation in PTIgAN patients.
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Affiliation(s)
- H S Jeong
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - J Lee
- Department of Transplantation Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - B J Lim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - H J Kwon
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Y S Kim
- Department of Transplantation Surgery, Yonsei University College of Medicine, Seoul, Korea; Institute of Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - B S Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - K H Huh
- Department of Transplantation Surgery, Yonsei University College of Medicine, Seoul, Korea; Institute of Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - S I Kim
- Department of Transplantation Surgery, Yonsei University College of Medicine, Seoul, Korea; Institute of Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - M S Kim
- Department of Transplantation Surgery, Yonsei University College of Medicine, Seoul, Korea; Institute of Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - H J Jeong
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea; Institute of Transplantation, Yonsei University College of Medicine, Seoul, Korea.
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Jeon JS, Kim BH, Lee SH, Kwon HJ, Bae HJ, Kim SK, Park JA, Shim JH, Abd El-Aty AM, Shin HC. Simultaneous determination of arbutin and its decomposed product hydroquinone in whitening creams using high-performance liquid chromatography with photodiode array detection: Effect of temperature and pH on decomposition. Int J Cosmet Sci 2015; 37:567-73. [PMID: 25857400 DOI: 10.1111/ics.12228] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 03/31/2015] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Arbutin is an effective agent for the treatment of melanin disorders. Arbutin may be converted to hydroquinone under conditions of high temperature, ultraviolet (UV) radiation and dilute acid. The aim of the current study was to develop an analytical method to determine the levels of arbutin and hydroquinone in whitening cosmetic products using high-performance liquid chromatography with photodiode array detection (HPLC-DAD). In addition, we investigated the effects of high temperature and pH on the decomposition of arbutin. METHODS Samples extracted using two-step sonications were separated on a C18 column using a gradient mobile phase consisting of water and methanol. A 60-mm (40 μL) DAD cell was used to enhance the sensitivity of hydroquinone determination. Thermal decomposition of arbutin was evaluated at temperatures ranging from 60 to 120°C for 1-36 h. RESULTS The method showed good linearity (R(2) ≥ 0.9997), precision (relative standard deviation, RSD < 5%) and acceptable extraction recovery (90-102.6%). The limits of quantitation for arbutin and hydroquinone were 0.0085 and 0.0119 μg mL(-1) , respectively. One sample of 21 cosmetic products tested contained arbutin at a concentration 1.61 g 100 g(-1) cream and 0.12 g 100 g(-1) cream of hydroquinone. Arbutin (327.18 ppm) decomposed after 6 h at 120°C and produced 10.73 ppm of hydroquinone. CONCLUSION The developed method is simple to detect both arbutin and hydroquinone simultaneously in cosmetic products, at an adequate level of sensitivity. Notably, temperature and pH did not influence the decomposition of arbutin to hydroquinone in a 2% arbutin cream.
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Affiliation(s)
- J S Jeon
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Nuengdong-ro, Gwangjin-gu, Seoul, 143-701, Korea.,Public Health Research Division, Gyeonggi Province Institute of Health and Environment, 95, Pajang cheon-ro, Jangan-gu, Suwonsi, Gyeonggi Province, 440-290, Korea
| | - B H Kim
- Public Health Research Division, Gyeonggi Province Institute of Health and Environment, 95, Pajang cheon-ro, Jangan-gu, Suwonsi, Gyeonggi Province, 440-290, Korea
| | - S H Lee
- Public Health Research Division, Gyeonggi Province Institute of Health and Environment, 95, Pajang cheon-ro, Jangan-gu, Suwonsi, Gyeonggi Province, 440-290, Korea
| | - H J Kwon
- Public Health Research Division, Gyeonggi Province Institute of Health and Environment, 95, Pajang cheon-ro, Jangan-gu, Suwonsi, Gyeonggi Province, 440-290, Korea
| | - H J Bae
- Public Health Research Division, Gyeonggi Province Institute of Health and Environment, 95, Pajang cheon-ro, Jangan-gu, Suwonsi, Gyeonggi Province, 440-290, Korea
| | - S K Kim
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Nuengdong-ro, Gwangjin-gu, Seoul, 143-701, Korea
| | - J A Park
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Nuengdong-ro, Gwangjin-gu, Seoul, 143-701, Korea
| | - J H Shim
- Biotechnology Research Institute, College of Agriculture and Life Sciences, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju, 500-757, Korea
| | - A M Abd El-Aty
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Nuengdong-ro, Gwangjin-gu, Seoul, 143-701, Korea.,Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - H C Shin
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Nuengdong-ro, Gwangjin-gu, Seoul, 143-701, Korea
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Kwon HJ, Jeong JH, Lee SW, Ryu YB, Jeong HJ, Jung K, Lim JS, Cho KO, Lee WS, Rho MC, Park SJ. In vitro anti-reovirus activity of kuraridin isolated from Sophora flavescens against viral replication and hemagglutination. J Pharmacol Sci 2015; 128:159-69. [PMID: 26076959 PMCID: PMC7172900 DOI: 10.1016/j.jphs.2015.04.007] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 04/05/2015] [Accepted: 04/21/2015] [Indexed: 11/22/2022] Open
Abstract
In this study, we evaluated the anti-reovirus activity of kuraridin isolated from the roots of Sophora flavescens. In particular, we focused on whether this property is attributable to direct inhibition of reovirus attachment and/or inhibition of viral replication with the aid of time-of-addition (pre-treatment, simultaneous treatment, and post-treatment) experiments. No significant antiviral activity of kuraridin was detected in the pre-treatment assay. In the simultaneous assay, the 50% effective inhibitory concentrations (EC50) of kuraridin were 15.3–176.9 μM against human type 1–3 reoviruses (HRV1–3) and Korean porcine reovirus (PRV). Kuraridin completely blocked binding of viral sigma 1 protein to sialic acids at concentrations lower than 82.5 μM in the hemagglutination inhibition assay. Moreover, kuraridin inhibited HRV1–3 and PRV viral replication with EC50 values of 14.0–62.0 μM. Quantitative real-time PCR analysis disclosed strong suppression of reovirus RNA synthesis at the late stage (18 h) of virus replication by kuraridin. The viral yields of kuraridin-treated cells were significantly reduced at 24 h post-infection, compared with DMSO-treated cells. Our results collectively suggest that kuraridin inhibits virus adsorption and replication by inhibiting hemagglutination, viral RNA and protein synthesis and virus shedding, supporting its utility as a viable candidate antiviral drug against reoviruses.
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Affiliation(s)
- Hyung-Jun Kwon
- Eco-friendly Bio-material Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 580-185, Republic of Korea
| | - Jae-Ho Jeong
- Department of Microbiology, Chonnam National University Medical School, Gwangju 501-746, Republic of Korea
| | - Seung Woong Lee
- Department of Chemistry, Mokwon University, Daejeon 302-729, Republic of Korea
| | - Young Bae Ryu
- Eco-friendly Bio-material Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 580-185, Republic of Korea
| | - Hyung Jae Jeong
- Eco-friendly Bio-material Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 580-185, Republic of Korea
| | - Kyungsook Jung
- Eco-friendly Bio-material Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 580-185, Republic of Korea
| | - Jae Sung Lim
- Department of Biochemistry, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kyoung-Oh Cho
- Biotherapy Human Resources Center, College of Veterinary Medicine, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Woo Song Lee
- Eco-friendly Bio-material Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 580-185, Republic of Korea
| | - Mun-Chual Rho
- Eco-friendly Bio-material Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 580-185, Republic of Korea.
| | - Su-Jin Park
- Eco-friendly Bio-material Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 580-185, Republic of Korea.
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Park JY, Ko JA, Kim DW, Kim YM, Kwon HJ, Jeong HJ, Kim CY, Park KH, Lee WS, Ryu YB. Chalcones isolated from Angelica keiskei inhibit cysteine proteases of SARS-CoV. J Enzyme Inhib Med Chem 2015; 31:23-30. [PMID: 25683083 DOI: 10.3109/14756366.2014.1003215] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Two viral proteases of severe acute respiratory syndrome coronavirus (SARS-CoV), a chymotrypsin-like protease (3CL(pro)) and a papain-like protease (PL(pro)) are attractive targets for the development of anti-SARS drugs. In this study, nine alkylated chalcones (1-9) and four coumarins (10-13) were isolated from Angelica keiskei, and the inhibitory activities of these constituents against SARS-CoV proteases (3CL(pro) and PL(pro)) were determined (cell-free/based). Of the isolated alkylated chalcones, chalcone 6, containing the perhydroxyl group, exhibited the most potent 3CL(pro) and PL(pro) inhibitory activity with IC50 values of 11.4 and 1.2 µM. Our detailed protein-inhibitor mechanistic analysis of these species indicated that the chalcones exhibited competitive inhibition characteristics to the SARS-CoV 3CL(pro), whereas noncompetitive inhibition was observed with the SARS-CoV PL(pro).
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Affiliation(s)
- Ji-Young Park
- a Eco-friendly Bio Material Research Center, Korea Research Institute of Bioscience and Biotechnology , Jeongeup , Republic of Korea
| | - Jin-A Ko
- a Eco-friendly Bio Material Research Center, Korea Research Institute of Bioscience and Biotechnology , Jeongeup , Republic of Korea
| | - Dae Wook Kim
- b Division of Applied Life Science (BK21 program, IALS) , Graduate School of Gyeongsang National University , Jinju , Republic of Korea , and
| | - Young Min Kim
- c Department of Food Science & Technology and Functional Food Research Center , Chonnam National University , Gwangju , Republic of Korea
| | - Hyung-Jun Kwon
- a Eco-friendly Bio Material Research Center, Korea Research Institute of Bioscience and Biotechnology , Jeongeup , Republic of Korea
| | - Hyung Jae Jeong
- a Eco-friendly Bio Material Research Center, Korea Research Institute of Bioscience and Biotechnology , Jeongeup , Republic of Korea
| | - Cha Young Kim
- a Eco-friendly Bio Material Research Center, Korea Research Institute of Bioscience and Biotechnology , Jeongeup , Republic of Korea
| | - Ki Hun Park
- b Division of Applied Life Science (BK21 program, IALS) , Graduate School of Gyeongsang National University , Jinju , Republic of Korea , and
| | - Woo Song Lee
- a Eco-friendly Bio Material Research Center, Korea Research Institute of Bioscience and Biotechnology , Jeongeup , Republic of Korea
| | - Young Bae Ryu
- a Eco-friendly Bio Material Research Center, Korea Research Institute of Bioscience and Biotechnology , Jeongeup , Republic of Korea
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Oh ST, Zheng L, Kwon HJ, Choo YK, Lee KW, Kang CW, An BK. Effects of Dietary Fermented Chlorella vulgaris (CBT(®)) on Growth Performance, Relative Organ Weights, Cecal Microflora, Tibia Bone Characteristics, and Meat Qualities in Pekin Ducks. Asian-Australas J Anim Sci 2015; 28:95-101. [PMID: 25557680 PMCID: PMC4283193 DOI: 10.5713/ajas.14.0473] [Citation(s) in RCA: 25] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 08/13/2014] [Accepted: 09/18/2014] [Indexed: 12/24/2022]
Abstract
Fermented Chlorella vulgaris was examined for its effects on growth performance, cecal microflora, tibia bone strength, and meat qualities in commercial Pekin ducks. A total of three hundred, day-old male Pekin ducks were divided into three groups with five replicates (n = 20 ducklings per replicate) and offered diets supplemented with commercial fermented C. vulgaris (CBT(®)) at the level of 0, 1,000 or 2,000 mg/kg, respectively for 6 wks. The final body weight was linearly (p = 0.001) increased as the addition of fermented C. vulgaris into diets increased. Similarly, dietary C. vulgaris linearly increased body weight gain (p = 0.001) and feed intake (p = 0.001) especially at the later days of the feeding trial. However, there was no C. vulgaris effect on feed efficiency. Relative weights of liver were significantly lowered by dietary fermented C. vulgaris (linear effect at p = 0.044). Dietary fermented C. vulgaris did not affect total microbes, lactic acid bacteria, and coliforms in cecal contents. Finally, meat quality parameters such as meat color (i.e., yellowness), shear force, pH, or water holding capacity were altered by adding fermented C. vulgaris into the diet. In our knowledge, this is the first report to show that dietary fermented C. vulgaris enhanced meat qualities of duck meats. In conclusion, our study indicates that dietary fermented C. vulgaris exerted benefits on productivity and can be employed as a novel, nutrition-based strategy to produce value-added duck meats.
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Affiliation(s)
- S T Oh
- Dan Biotech Inc., Cheonan 330-834, Korea
| | - L Zheng
- Dan Biotech Inc., Cheonan 330-834, Korea
| | - H J Kwon
- Dan Biotech Inc., Cheonan 330-834, Korea
| | - Y K Choo
- Dan Biotech Inc., Cheonan 330-834, Korea
| | - K W Lee
- Dan Biotech Inc., Cheonan 330-834, Korea
| | - C W Kang
- Dan Biotech Inc., Cheonan 330-834, Korea
| | - B K An
- Dan Biotech Inc., Cheonan 330-834, Korea
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Choi YJ, Park MI, Park SJ, Moon W, Kim SE, Kwon HJ, Kim JH, Jeon WS. The effect of water bolus temperature on esophageal motor function as measured by high-resolution manometry. Neurogastroenterol Motil 2014; 26:1628-34. [PMID: 25307526 DOI: 10.1111/nmo.12441] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 03/20/2014] [Accepted: 08/19/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Ingestion of cold fluids may induce pain in patients with esophageal motility disorders. Hot fluids, on the other hand, may help to relieve pain. We studied changes in esophageal motility as a variable of water bolus temperature using high-resolution manometry (HRM) in healthy human. METHODS Thirty-two healthy subjects were recruited at Kosin University Hospital. HRM was performed in a sitting position, with room temperature (RT, 25 °C), hot (45 °C), and cold (2 °C) water swallowed in that order. This exam included single swallowing (10 swallows of 5 mL water, 30 s intervals) and multiple water swallows (MWS; 100 mL water within 30 s). KEY RESULTS In the single swallowing, hot water caused a decrease in lower esophageal sphincter (LES) residual pressure (5.87 ± 4.20 mmHg vs 7.45 ± 4.17 mmHg (RT), p = 0.001) and duration of esophageal body (EB) contraction (3.01 ± 0.80 s vs 3.15 ± 1.16 s (RT), p = 0.009). Cold water caused an increase in the duration of EB contraction (3.52 ± 0.87 s vs 3.15 ± 1.16 s (RT), p = 0.001) and a decrease in contractile front velocity (CFV) (4.43 ± 1.50 cm/s vs 4.90 ± 2.53 cm/s (RT), p = 0.007). Similarly, in the MWS, hot water caused a decrease in the duration of EB contraction (12.95 ± 5.02 s vs 16.33 ± 5.94 s (RT), p = 0.024) and an increase in the amplitude of EB contraction (114.27 ± 83.36 mmHg vs 82.70 ± 46.77 mmHg (RT), p = 0.007). Cold water caused an increase in the duration of EB contraction (27.38 ± 2.89 s vs 16.33 ± 5.94 s (RT), p = 0.03) and a decrease in the amplitude of EB contraction (51.68 ± 33.94 mmHg vs 82.70 ± 46.77 mmHg (RT), p = 0.001). CONCLUSIONS & INFERENCES This study showed changes in esophageal motility to be dependent on water temperature. Especially, MWS showed clear changes in esophageal motility at different temperatures of water.
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Affiliation(s)
- Y J Choi
- Department of Internal Medicine, Kosin University College of Medicine, Busan, South Korea
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Kim EJ, Kwon HJ, Ha M, Lim MH, Oh SY, Kim JH, Yoo SJ, Paik KC. Relationship among attention-deficit hyperactivity disorder, dietary behaviours and obesity. Child Care Health Dev 2014; 40:698-705. [PMID: 24438547 DOI: 10.1111/cch.12129] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/08/2013] [Indexed: 11/27/2022]
Abstract
BACKGROUND Attention-deficit hyperactivity disorder (ADHD) is one of the most common psychiatric disorders of childhood and can be associated with obesity. The aim of this study was to reveal the connection between ADHD symptoms, food habits and obesity. METHODS We examined 12 350 children (6010 boys, 6340 girls) from 27 elementary schools in Cheonan, the Republic of Korea. The study subjects were 5- to 13-year-old children (9.4 ± 1.7 years). Parents completed the DuPaul ADHD Rating Scale. Food habits were measured by a questionnaire adapted from the Korea Youth Risk Behavior Web-based Survey and a validated mini-dietary assessment tool. The full set of hypothesized associations was tested using covariance structural modelling. RESULTS The prevalence of ADHD was 7.6% and that of obesity was 4.5% in our study population. The data was well fit by the model. ADHD was associated with body mass index (BMI; standardized β = 0.086, P < 0.001). Bulimic dietary behaviours was related to BMI (standardized β = 0.548, P < 0.001). Socio-economic status was associated with BMI (standardized β = -0.017, P = 0.027). CONCLUSION Our analysis suggested that ADHD was a risk factor for obesity through dietary behavioural change and socio-economic status.
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Affiliation(s)
- E J Kim
- The Environmental Health Center (Neurodevelopment), Dankook University Medical Center, Cheonan, Korea
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Choo YK, Kwon HJ, Oh ST, Kang CW, Kim HK, Hong EC, Heo KN, Lee SK, An BK. Growth performance and carcass characteristics of korean native ducks fed diets with varying levels of limiting amino acids. Asian-Australas J Anim Sci 2014; 27:518-23. [PMID: 25049982 PMCID: PMC4093530 DOI: 10.5713/ajas.2013.13675] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/20/2014] [Accepted: 12/17/2013] [Indexed: 12/02/2022]
Abstract
There are multiple experiments conducted with male Korean native ducks (KND) to evaluate the optimal levels of limiting amino acids (AA). In Exp. 1, a total of 450 one-d-old male KNDs were divided into five groups with six replicates and fed experimental diets with varying levels of lysine, total sulfur amino acids (TSAA) and threonine (T1, 0.90/0.74/0.70%; T2, 1.00/0.82/0.77%; T3, 1.10/0.90/0.85%; T4, 1.20/0.98/0.93%; T5, 1.30/1.07/1.01%) to 21 d of age. In Exp. 2, one-d-old male KND were received and fed commercial starter diet from hatching to 21 d of age, and then divided into five groups with six replicates and fed one of five diets varying levels of lysine, TSAA, and threonine (T1, 0.73/0.62/0.54%; T2, 0.80/0.68/0.60%; T3, 0.87/0.74/0.65%; T4, 0.94/0.80/0.70%; T5, 1.01/0.86/0.75%) during 22 to 56 d of age, respectively. The BW gain was linearly increased as dietary limiting AA levels increased to 1.20% lysine, 0.98% TSAA and 0.93% threonine. There were no significant differences in feed intake, gain:feed and uniformity among groups. In Exp. 2, the BW gain and gain:feed were not affected by dietary limiting AA levels. There were no significant differences in carcass characteristics and meat quality among groups. The growth performance and carcass characteristics did not show the significant response to increasing dietary limiting AA levels in KND during 22 to 56 d of age. In conclusion, the levels of lysine, TSAA and threonine necessary to maximize growth for starter phase were at least 1.20%, 0.98%, and 0.93%, respectively. On the other hands, KND require relatively low levels of limiting AA for late growth and carcass yield. The dietary levels of 0.73% lysine, 0.62% TSAA and 0.54% threonine appear to be adequate during growing phase.
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Affiliation(s)
- Y K Choo
- Poultry Science Division, National Institute of Animal Science, RDA, Seonghwan 330-801, Korea
| | - H J Kwon
- Poultry Science Division, National Institute of Animal Science, RDA, Seonghwan 330-801, Korea
| | - S T Oh
- Poultry Science Division, National Institute of Animal Science, RDA, Seonghwan 330-801, Korea
| | - C W Kang
- Poultry Science Division, National Institute of Animal Science, RDA, Seonghwan 330-801, Korea
| | - H K Kim
- Poultry Science Division, National Institute of Animal Science, RDA, Seonghwan 330-801, Korea
| | - E C Hong
- Poultry Science Division, National Institute of Animal Science, RDA, Seonghwan 330-801, Korea
| | - K N Heo
- Poultry Science Division, National Institute of Animal Science, RDA, Seonghwan 330-801, Korea
| | - S K Lee
- Department of Animal Products and Food Science, Kangwon National University, Chuncheon 200-701, Korea
| | - B K An
- Poultry Science Division, National Institute of Animal Science, RDA, Seonghwan 330-801, Korea
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Choo YK, Kwon HJ, Oh ST, Um JS, Kim BG, Kang CW, Lee SK, An BK. Comparison of growth performance, carcass characteristics and meat quality of korean local chickens and silky fowl. Asian-Australas J Anim Sci 2014; 27:398-405. [PMID: 25049967 PMCID: PMC4093260 DOI: 10.5713/ajas.2013.13638] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/20/2014] [Accepted: 01/02/2014] [Indexed: 11/27/2022]
Abstract
This study was conducted to compare growth performance, carcass characteristics and meat quality of 4 breeds of local chicken. A total of 480 1-d-old chicks were distributed to 16 pens, with 4 treatments of breed, 4 replicates and 30 chicks per pen. Three Korean local breeds of white-mini broiler, Hanhyup-3-ho, and Woorimatdag, and a breed of silky fowl were raised under identical rearing and feeding conditions for 31-d, 37-d, 36-d, and 59-d, respectively. The BW and feed consumption on a pen basis were weekly measured for all pens, and ADFI, ADG and gain:feed were calculated for each pen. The ADFI and ADG of 3 breeds of Korean local chicken were greater than those of silky fowl (p<0.05). Within the Korean local breeds, ADFI of white-mini broiler was the highest (p<0.05), and ADG of Hanhyup-3-ho and white-mini broiler was the highest (p<0.05). Gain:feed of silky fowl was less than that of the 3 breeds of Korean local chicken. The carcass and breast yield of white-mini broiler were the greater than those of other breeds (p<0.05). The breast meat color (CIE L*, a*, and b*) of 3 breeds of Korean local chicken were higher than that of silky fowl (p<0.05). The breast meat of Hanhyup-3-ho had greater cooking loss (p<0.05), whereas water holding capacity and pH were less than those of other breeds (p<0.05). The color score of 3 breeds of Korean local chicken was higher than that of silky fowl (p<0.05). Woorimatdag had a higher score on tenderness (p<0.05), whereas flavor score was less than that of other breeds (p<0.05). In conclusion, 4 local breeds of chicken have some unique features and seem to have more advantages, and this information can help consumers who prefer healthy and premium chicken meat.
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Affiliation(s)
- Y K Choo
- Nonghyup Feed Inc., Seoul 134-763, Korea
| | - H J Kwon
- Nonghyup Feed Inc., Seoul 134-763, Korea
| | - S T Oh
- Nonghyup Feed Inc., Seoul 134-763, Korea
| | - J S Um
- Nonghyup Feed Inc., Seoul 134-763, Korea
| | - B G Kim
- Nonghyup Feed Inc., Seoul 134-763, Korea
| | - C W Kang
- Nonghyup Feed Inc., Seoul 134-763, Korea
| | - S K Lee
- Department of Animal Products and Food Science, Kangwon National University, Chuncheon 200-701, Korea
| | - B K An
- Nonghyup Feed Inc., Seoul 134-763, Korea
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Kim DW, Woo HD, Joo J, Park KS, Oh SY, Kwon HJ, Park JD, Hong YS, Sohn SJ, Yoon HJ, Hwang MS, Kim J. Estimated long-term dietary exposure to lead, cadmium, and mercury in young Korean children. Eur J Clin Nutr 2014; 68:1322-6. [PMID: 24961543 DOI: 10.1038/ejcn.2014.116] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 03/10/2014] [Accepted: 04/13/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND Controlling for day-to-day variation is a key issue in estimating long-term dietary exposure to heavy metals using 24-hour recall (24HR) data from a relatively small number of days. OBJECTIVES This study was conducted to estimate long-term dietary exposure to lead, cadmium and mercury among Korean children using the Iowa State University (ISU) method and to assess the contributions of different food groups to heavy metal intake. METHODS We analyzed 2 days of 24HR data from 457 children between 0 and 6 years of age in 2010. Using bootstrapped concentration data for 118 representative foods, 93.5% of total intake was included in the exposure estimates in this study. Using the 2-day exposure data, we estimated long-term exposure by controlling for within-individual variation using the ISU method. RESULTS The long-term dietary exposure estimates (mean±standard deviation) for lead, cadmium, and mercury were 0.47±0.14, 0.38±0.20, and 0.22±0.08 μg/kg bw/day, respectively. For lead and cadmium, the percentages of children whose exposure was greater than the reference value were 35 and 42%, respectively. Fruits were an important source of lead exposure, and cereal and fish and shellfish made the greatest contributions to the total cadmium and mercury exposure. CONCLUSIONS Our findings also suggest that the long-term exposure to lead and cadmium was somewhat greater than the reference values, whereas mercury exposure was well below than the reference value in this population. Further studies may be necessary to evaluate the food items contributing to heavy metal exposure, and continuous monitoring is needed to ensure the safety of food intake and dietary patterns among vulnerable groups in Korea.
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Affiliation(s)
- D W Kim
- Molecular Epidemiology Branch, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - H D Woo
- Molecular Epidemiology Branch, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - J Joo
- Biometric Research Branch, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - K S Park
- Advanced Analysis Center, Research Planning & Coordination Division, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - S Y Oh
- Department of Food & Nutrition, College of Human Ecology, Kyung Hee University, Seoul, Republic of Korea
| | - H J Kwon
- Department of Preventive Medicine, College of Medicine, Dankook University, Cheonan-si, Chungcheongnam-do, Republic of Korea
| | - J D Park
- Department of Preventive Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Y S Hong
- Dong-A University, Regional Cardiocerebrovascular Center, Busan, Republic of Korea
| | - S J Sohn
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - H J Yoon
- Risk Analysis & Research Division, National Institute of Food and Drug Safety Evaluation, Cheongwon-gun, Chungcheongbuk-do, Republic of Korea
| | - M S Hwang
- Risk Analysis & Research Division, National Institute of Food and Drug Safety Evaluation, Cheongwon-gun, Chungcheongbuk-do, Republic of Korea
| | - J Kim
- Molecular Epidemiology Branch, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
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Choi YJ, Park MI, Park SJ, Moon W, Kim SE, Yoo CH, Kwon HJ. Relationship between multiple water swallows and gastroesophageal reflux in patients with normal esophageal motility. Dis Esophagus 2014; 28:520-3. [PMID: 24898795 DOI: 10.1111/dote.12232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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] [Indexed: 12/11/2022]
Abstract
Multiple water swallows (MWS) stimulates neural inhibition, resulting in abolition of contractions in the esophageal body and complete lower esophageal sphincter relaxation, which is followed by peristalsis and the lower esophageal sphincter contraction. We assessed the relationship between MWS and gastroesophageal reflux in patients with esophageal symptoms and with normal findings by high-resolution manometry (HRM). We retrospectively reviewed the clinical records of patients who underwent HRM and a 24-hour ambulatory impedance-pH study. Correlation between the findings of the impedance-pH study and abnormal MWS responses without motility disorders was evaluated. Independent t-tests were used for statistical analysis. Of 28 patients, 20 (71%) had abnormal MWS responses: four (20%) had abnormal responses during MWS, six (30%) had abnormal responses after MWS, and 10 (50%) had abnormal responses both during and after MWS. Total acid exposure times were significantly longer in patients with abnormal MWS responses than in patients with normal MWS responses. In particular, upright acid exposure time and all reflux percent times were significantly longer in patients with abnormal MWS responses. However, bolus clearance time and longest reflux episode were not different between the two groups. Abnormal MWS responses predicted increased acid exposure times in patients with normal findings of HRM by the Chicago classification.
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Affiliation(s)
- Y J Choi
- Department of Internal Medicine, Kosin University College of Medicine, Busan, South Korea
| | - M I Park
- Department of Internal Medicine, Kosin University College of Medicine, Busan, South Korea
| | - S J Park
- Department of Internal Medicine, Kosin University College of Medicine, Busan, South Korea
| | - W Moon
- Department of Internal Medicine, Kosin University College of Medicine, Busan, South Korea
| | - S E Kim
- Department of Internal Medicine, Kosin University College of Medicine, Busan, South Korea
| | - C H Yoo
- Department of Internal Medicine, Kosin University College of Medicine, Busan, South Korea
| | - H J Kwon
- Department of Internal Medicine, Kosin University College of Medicine, Busan, South Korea
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Kim DS, Hosmillo M, Alfajaro MM, Kim JY, Park JG, Son KY, Ryu EH, Sorgeloos F, Kwon HJ, Park SJ, Lee WS, Cho D, Kwon J, Choi JS, Kang MI, Goodfellow I, Cho KO. Both α2,3- and α2,6-linked sialic acids on O-linked glycoproteins act as functional receptors for porcine Sapovirus. PLoS Pathog 2014; 10:e1004172. [PMID: 24901849 PMCID: PMC4047124 DOI: 10.1371/journal.ppat.1004172] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 04/21/2014] [Indexed: 12/23/2022] Open
Abstract
Sapovirus, a member of the Caliciviridae family, is an important cause of acute gastroenteritis in humans and pigs. Currently, the porcine sapovirus (PSaV) Cowden strain remains the only cultivable member of the Sapovirus genus. While some caliciviruses are known to utilize carbohydrate receptors for entry and infection, a functional receptor for sapovirus is unknown. To characterize the functional receptor of the Cowden strain of PSaV, we undertook a comprehensive series of protein-ligand biochemical assays in mock and PSaV-infected cell culture and/or piglet intestinal tissue sections. PSaV revealed neither hemagglutination activity with red blood cells from any species nor binding activity to synthetic histo-blood group antigens, indicating that PSaV does not use histo-blood group antigens as receptors. Attachment and infection of PSaV were markedly blocked by sialic acid and Vibrio cholerae neuraminidase (NA), suggesting a role for α2,3-linked, α2,6-linked or α2,8-linked sialic acid in virus attachment. However, viral attachment and infection were only partially inhibited by treatment of cells with sialidase S (SS) or Maackia amurensis lectin (MAL), both specific for α2,3-linked sialic acid, or Sambucus nigra lectin (SNL), specific for α2,6-linked sialic acid. These results indicated that PSaV recognizes both α2,3- and α2,6-linked sialic acids for viral attachment and infection. Treatment of cells with proteases or with benzyl 4-O-β-D-galactopyranosyl-β-D-glucopyranoside (benzylGalNAc), which inhibits O-linked glycosylation, also reduced virus binding and infection, whereas inhibition of glycolipd synthesis or N-linked glycosylation had no such effect on virus binding or infection. These data suggest PSaV binds to cellular receptors that consist of α2,3- and α2,6-linked sialic acids on glycoproteins attached via O-linked glycosylation.
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Affiliation(s)
- Deok-Song Kim
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Myra Hosmillo
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Mia Madel Alfajaro
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Ji-Yun Kim
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Jun-Gyu Park
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Kyu-Yeol Son
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Eun-Hye Ryu
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Frederic Sorgeloos
- Division of Virology, Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Hyung-Jun Kwon
- Bioindustry Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Su-Jin Park
- Bioindustry Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Woo Song Lee
- Bioindustry Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Duck Cho
- Department of Laboratory Medicine, Chonnam National University Hwasun Hospital, Jeollanam-do, Republic of Korea
| | - Joseph Kwon
- Division of Life Science, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Jong-Soon Choi
- Division of Life Science, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Mun-Il Kang
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Ian Goodfellow
- Division of Virology, Department of Pathology, University of Cambridge, Cambridge, United Kingdom
- * E-mail: (IG); (KOC)
| | - Kyoung-Oh Cho
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
- * E-mail: (IG); (KOC)
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Kwon HJ, Kang JH, Lee JW, Chung NG, Kim HK, Cho B. Treatment of BK virus-associated hemorrhagic cystitis in pediatric hematopoietic stem cell transplant recipients with cidofovir: a single-center experience. Transpl Infect Dis 2013; 15:569-74. [PMID: 24028353 DOI: 10.1111/tid.12136] [Citation(s) in RCA: 34] [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: 09/19/2012] [Revised: 01/08/2013] [Accepted: 03/24/2013] [Indexed: 01/07/2023]
Abstract
BACKGROUND BK virus (BKV)-associated hemorrhagic cystitis (BKV-HC) is a severe complication after hematopoietic stem cell transplantation (HSCT). Cidofovir (CDV) has emerged as an effective agent for the treatment of BKV nephropathy, but its use for BKV-HC in pediatric HSCT recipients has not yet been established as a standard therapy. PATIENT AND METHODS We retrospectively investigated the efficacy and safety of CDV therapy for patients with BKV-HC at a single institution and analyzed the clinical management outcomes. RESULTS From April 2009 to July 2011, 12 patients developed BKV-HC at a median of 37 days after transplant (range 15-59 days). The cumulative incidence was 9% and the median peak of the urine BKV load was 2.5 × 10(10) copies/mL (range 1.4 × 10(9) -1.2 × 10(11) copies/mL). Eleven patients received intravenous CDV (5 mg/kg/dose, with probenecid), whereas 1 patient received CDV (5 mg/kg/dose, without probenecid) intravesically. The median duration of therapy was 25 days (range 9-73 days), and a median of 2 doses was given (range 1-4). A reduction of ≥ 1 log in the BKV load was found in 11 patients, while 1 patient did not have any significant change in BKV load. Clinical improvement was observed in all cases, and no HC-related death was observed. CDV-related toxicity occurred in 1 patient (8%) and spontaneously resolved. CONCLUSIONS CDV appears to be an effective and safe treatment for BKV-HC in pediatric HSCT recipients, but prospective trials are warranted to support its use.
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Affiliation(s)
- H J Kwon
- Division of Infectious Diseases, Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea; Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Park J, Lee H, Kim YK, Kim KH, Lee W, Lee KY, Park YJ, Kahng J, Kwon HJ, Kim Y, Oh EJ, Lim J, Kim M, Han K. Automated screening for tuberculosis by multiparametric analysis of data obtained during routine complete blood count. Int J Lab Hematol 2013; 36:156-64. [PMID: 24034225 DOI: 10.1111/ijlh.12148] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 04/18/2013] [Accepted: 07/30/2013] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The main goal of this study was to develop a multiparametric cell population data (CPD) model that combines information from several morphologic parameters generated by DxH800, in addition to the traditional parameters regularly reported in the CBC-diff, and to test the performance of this model in screening the general population for primary tuberculosis (TB). METHODS A total of 3741 study cases were divided into two groups, test and validation set at cut-off value of 6000 WBCs/μL. We developed multiparametric model for primary TB screening (TB hemeprint), selected CPD, and calculated parameters which could discriminate primary TB from other non-TB diseases and normal control in test set. We applied it to the validation set, which was a set of completely different samples, to test its reproducibility if applied to a routine laboratory test. RESULTS After screening primary TB using TB hemeprint, sensitivity, specificity, PPV, and NPV were 85.4%, 89.6%, 31.1%, and 99.1%, respectively, in primary TB with lower than 6000 WBCs/μL of test set (test set-L). In primary TB with higher than 6000 WBCs/μL of test set (test set-H), those values were 83.1%, 85.6%, 29.7%, and 98.6%, respectively. There were only 0.4% (2/461) and 0.6% (2/326) of normal control samples included in test set-L and -H, respectively. Diagnostic efficiencies except sensitivity in each validation set were very comparable with those in each test set. CONCLUSION Tuberculosis hemeprint may allow us to screen primary TB with acceptable sensitivity and specificity using combination of TB-specific CPD and calculated parameters.
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Affiliation(s)
- J Park
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kwon HJ, Ryu YB, Kim YM, Song N, Kim CY, Rho MC, Jeong JH, Cho KO, Lee WS, Park SJ. In vitro antiviral activity of phlorotannins isolated from Ecklonia cava against porcine epidemic diarrhea coronavirus infection and hemagglutination. Bioorg Med Chem 2013; 21:4706-13. [PMID: 23746631 PMCID: PMC7127107 DOI: 10.1016/j.bmc.2013.04.085] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 04/18/2013] [Accepted: 04/27/2013] [Indexed: 01/09/2023]
Abstract
Despite the prepdominat agent causing severe entero-pathogenic diarrhea in swine, there are no effective therapeutical treatment of porcine epidemic diarrhea virus (PEDV). In this study, we evaluated the antiviral activity of five phlorotannins isolated from Ecklonia cava (E. cava) against PEDV. In vitro antiviral activity was tested using two different assay strategies: (1) blockage of the binding of virus to cells (simultaneous-treatment assay) and (2) inhibition of viral replication (post-treatment assay). In simultaneous-treatment assay, compounds 2-5 except compound 1 exhibited antiviral activities of a 50% inhibitory concentration (IC₅₀) with the ranging from 10.8 ± 1.4 to 22.5 ± 2.2 μM against PEDV. Compounds 1-5 were completely blocked binding of viral spike protein to sialic acids at less than 36.6 μM concentrations by hemagglutination inhibition. Moreover, compounds 4 and 5 of five phlorotannins inhibited viral replication with IC₅₀ values of 12.2 ± 2.8 and 14.6 ± 1.3 μM in the post-treatment assay, respectively. During virus replication steps, compounds 4 and 5 exhibited stronger inhibition of viral RNA and viral protein synthesis in late stages (18 and 24 h) than in early stages (6 and 12 h). Interestingly, compounds 4 and 5 inhibited both viral entry by hemagglutination inhibition and viral replication by inhibition of viral RNA and viral protein synthesis, but not viral protease. These results suggest that compounds isolated from E. cava have strong antiviral activity against PEDV, inhibiting viral entry and/or viral replication, and may be developed into natural therapeutic drugs against coronavirus infection.
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Affiliation(s)
- Hyung-Jun Kwon
- Infection Control Material Research Center, AI Control Material Research Center and Bioindustrial Process Reasearch Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 580-185, Republic of Korea
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Park JY, Kim JH, Kwon JM, Kwon HJ, Jeong HJ, Kim YM, Kim D, Lee WS, Ryu YB. Dieckol, a SARS-CoV 3CL(pro) inhibitor, isolated from the edible brown algae Ecklonia cava. Bioorg Med Chem 2013; 21:3730-7. [PMID: 23647823 PMCID: PMC7126891 DOI: 10.1016/j.bmc.2013.04.026] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/11/2013] [Accepted: 04/12/2013] [Indexed: 12/11/2022]
Abstract
SARS-CoV 3CL(pro) plays an important role in viral replication. In this study, we performed a biological evaluation on nine phlorotannins isolated from the edible brown algae Ecklonia cava. The nine isolated phlorotannins (1-9), except phloroglucinol (1), possessed SARS-CoV 3CL(pro) inhibitory activities in a dose-dependently and competitive manner. Of these phlorotannins (1-9), two eckol groups with a diphenyl ether linked dieckol (8) showed the most potent SARS-CoV 3CL(pro) trans/cis-cleavage inhibitory effects (IC(50)s = 2.7 and 68.1 μM, respectively). This is the first report of a (8) phlorotannin chemotype significantly blocking the cleavage of SARS-CoV 3CL(pro) in a cell-based assay with no toxicity. Furthermore, dieckol (8) exhibited a high association rate in the SPR sensorgram and formed extremely strong hydrogen bonds to the catalytic dyad (Cys145 and His41) of the SARS-CoV 3CL(pro).
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Affiliation(s)
- Ji-Young Park
- Infection Control Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
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