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Shim S, Ha S, Choi J, Kwon HK, Cheon KA. Alterations in Plasma Cytokine Levels in Korean Children with Autism Spectrum Disorder. Yonsei Med J 2024; 65:70-77. [PMID: 38288647 PMCID: PMC10827638 DOI: 10.3349/ymj.2023.0362] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/11/2023] [Accepted: 10/25/2023] [Indexed: 02/01/2024] Open
Abstract
PURPOSE Numerous studies have supported the role of the immune dysfunction in the pathogenesis of autism spectrum disorder (ASD); however, to our knowledge, no study has been conducted on plasma cytokine levels in children with ASD in South Korea. In this study, we aimed to analyze the immunological characteristics of Korean children with ASD through plasma cytokine analysis. MATERIALS AND METHODS Blood samples were collected from 94 ASD children (mean age 7.1; 81 males and 13 females) and 48 typically developing children (TDC) (mean age 7.3; 30 males and 18 females). Plasma was isolated from 1 mL of blood by clarifying with centrifugation at 8000 rpm at 4℃ for 10 min. Cytokines in plasma were measured with LEGENDplex HU Th cytokine panel (BioLegend, 741028) and LEGENDplex HU cytokine panel 2 (BioLegend, 740102). RESULTS Among 25 cytokines, innate immune cytokine [interleukin (IL)-33] was significantly decreased in ASD children compared with TDC. In acute phase proteins, tumor necrosis factor α (TNF-α) was significantly increased, while IL-6, another inflammation marker, was decreased in ASD children compared with TDC. The cytokines from T cell subsets, including interferon (IFN)-γ, IL-5, IL-13, and IL-17f, were significantly decreased in ASD children compared to TDC. IL-10, a major anti-inflammatory cytokine, and IL-9, which modulates immune cell growth and proliferation, were also significantly decreased in ASD children compared to TDC. CONCLUSION We confirmed that Korean children with ASD showed altered immune function and unique cytokine expression patterns distinct from TDC.
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Affiliation(s)
- Songjoo Shim
- Department of Psychiatry, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sungji Ha
- Department of Psychiatry, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Korea.
| | - Juli Choi
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea.
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Keun-Ah Cheon
- Department of Psychiatry, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Korea
- Department of Child and Adolescent Psychiatry, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Choi S, Lee J, Kim S, Lee YW, Kim GC, Hong SM, An SH, Noh H, Kim KE, On D, Lee SG, Jang HJ, Kim SH, Kim J, Seo JS, Kim JJ, Park IH, Oh J, Kim DJ, Yoon JH, Seok SH, Lee YJ, Kim SY, Kim YB, Hwang JY, Lee HJ, Kim HB, Park JW, Yun JW, Shin JS, Seo JY, Nam KT, Choi KS, Kwon HK, Lee HY, Kim JK, Seong JK. A longitudinal molecular and cellular lung atlas of lethal SARS-CoV-2 infection in K18-hACE2 transgenic mice. EBioMedicine 2024; 99:104932. [PMID: 38118400 PMCID: PMC10772566 DOI: 10.1016/j.ebiom.2023.104932] [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: 11/18/2022] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/22/2023] Open
Abstract
BACKGROUND The global pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has led to approximately 500 million cases and 6 million deaths worldwide. Previous investigations into the pathophysiology of SARS-CoV-2 primarily focused on peripheral blood mononuclear cells from patients, lacking detailed mechanistic insights into the virus's impact on inflamed tissue. Existing animal models, such as hamster and ferret, do not faithfully replicate the severe SARS-CoV-2 infection seen in patients, underscoring the need for more relevant animal system-based research. METHODS In this study, we employed single-cell RNA sequencing (scRNA-seq) with lung tissues from K18-hACE2 transgenic (TG) mice during SARS-CoV-2 infection. This approach allowed for a comprehensive examination of the molecular and cellular responses to the virus in lung tissue. FINDINGS Upon SARS-CoV-2 infection, K18-hACE2 TG mice exhibited severe lung pathologies, including acute pneumonia, alveolar collapse, and immune cell infiltration. Through scRNA-seq, we identified 36 different types of cells dynamically orchestrating SARS-CoV-2-induced pathologies. Notably, SPP1+ macrophages in the myeloid compartment emerged as key drivers of severe lung inflammation and fibrosis in K18-hACE2 TG mice. Dynamic receptor-ligand interactions, involving various cell types such as immunological and bronchial cells, defined an enhanced TGFβ signaling pathway linked to delayed tissue regeneration, severe lung injury, and fibrotic processes. INTERPRETATION Our study provides a comprehensive understanding of SARS-CoV-2 pathogenesis in lung tissue, surpassing previous limitations in investigating inflamed tissues. The identified SPP1+ macrophages and the dysregulated TGFβ signaling pathway offer potential targets for therapeutic intervention. Insights from this research may contribute to the development of innovative diagnostics and therapies for COVID-19. FUNDING This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2020M3A9I2109027, 2021R1A2C2004501).
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Affiliation(s)
- Seunghoon Choi
- Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK21 Project for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea; Korea Mouse Phenotyping Center, Seoul National University, Seoul 08826, Republic of Korea
| | - Jusung Lee
- Department of New Biology, DGIST, Daegu 42988, Republic of Korea
| | - Suhyeon Kim
- Korea Mouse Phenotyping Center, Seoul National University, Seoul 08826, Republic of Korea; BIO-MAX Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Youn Woo Lee
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seongnam 23488, Republic of Korea
| | - Gi-Cheon Kim
- Institute of Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Microbiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Seung-Min Hong
- Laboratory of Avian Diseases, BK21 Project for Veterinary Science and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea
| | - Se-Hee An
- Laboratory of Avian Diseases, BK21 Project for Veterinary Science and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyuna Noh
- Korea Mouse Phenotyping Center, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Eun Kim
- Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK21 Project for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea; Korea Mouse Phenotyping Center, Seoul National University, Seoul 08826, Republic of Korea
| | - Dain On
- Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK21 Project for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea; Korea Mouse Phenotyping Center, Seoul National University, Seoul 08826, Republic of Korea
| | - Sang Gyu Lee
- Korea Mouse Phenotyping Center, Seoul National University, Seoul 08826, Republic of Korea; Interdisciplinary Program for Bioinformatics, Seoul National University, Seoul 08826, Republic of Korea
| | - Hui Jeong Jang
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seongnam 23488, Republic of Korea
| | - Sung-Hee Kim
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jiseon Kim
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jung Seon Seo
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jeong Jin Kim
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - In Ho Park
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Institute of Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jooyeon Oh
- Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Institute of Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Microbiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Da-Jung Kim
- Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Institute of Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Microbiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jong-Hwi Yoon
- Institute of Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Microbiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Sang-Hyuk Seok
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, Chuncheon 24342, Republic of Korea
| | - Yu Jin Lee
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, Chuncheon 24342, Republic of Korea
| | - Seo Yeon Kim
- Preclinical Research Center, Seoul National University Bundang Hospital, Seongnam 23488, Republic of Korea
| | - Young Been Kim
- Preclinical Research Center, Seoul National University Bundang Hospital, Seongnam 23488, Republic of Korea
| | - Ji-Yeon Hwang
- Preclinical Research Center, Seoul National University Bundang Hospital, Seongnam 23488, Republic of Korea
| | - Hyo-Jung Lee
- Department of Periodontology, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam 23620, Republic of Korea
| | - Hong Bin Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam 23620, Republic of Korea
| | - Jun Won Park
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, Chuncheon 24342, Republic of Korea
| | - Jun-Won Yun
- Laboratory of Veterinary Toxicology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Jeon-Soo Shin
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Institute of Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Microbiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jun-Young Seo
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Ki Taek Nam
- Department of Biomedical Sciences, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Kang-Seuk Choi
- Laboratory of Avian Diseases, BK21 Project for Veterinary Science and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea.
| | - Ho-Keun Kwon
- Graduate School of Medical Science, BK21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Institute of Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea; Department of Microbiology, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
| | - Ho-Young Lee
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seongnam 23488, Republic of Korea; Department of Nuclear Medicine, Seoul National University, College of Medicine, Seoul 03080, South Korea.
| | - Jong Kyoung Kim
- Department of New Biology, DGIST, Daegu 42988, Republic of Korea; Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
| | - Je Kyung Seong
- Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK21 Project for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea; Korea Mouse Phenotyping Center, Seoul National University, Seoul 08826, Republic of Korea; BIO-MAX Institute, Seoul National University, Seoul 08826, Republic of Korea; Interdisciplinary Program for Bioinformatics, Seoul National University, Seoul 08826, Republic of Korea.
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Kim G, Lee Y, You JS, Hwang W, Hwang J, Kim HY, Kim J, Jo A, Park IH, Ali M, Kim J, Shin JS, Kwon HK, Kim HJ, Yoon SS. A Moonlighting Protein Secreted by a Nasal Microbiome Fortifies the Innate Host Defense Against Bacterial and Viral Infections. Immune Netw 2023; 23:e31. [PMID: 37670809 PMCID: PMC10475824 DOI: 10.4110/in.2023.23.e31] [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: 05/02/2023] [Revised: 06/06/2023] [Accepted: 06/19/2023] [Indexed: 09/07/2023] Open
Abstract
Evidence suggests that the human respiratory tract, as with the gastrointestinal tract, has evolved to its current state in association with commensal microbes. However, little is known about how the airway microbiome affects the development of airway immune system. Here, we uncover a previously unidentified mode of interaction between host airway immunity and a unique strain (AIT01) of Staphylococcus epidermidis, a predominant species of the nasal microbiome. Intranasal administration of AIT01 increased the population of neutrophils and monocytes in mouse lungs. The recruitment of these immune cells resulted in the protection of the murine host against infection by Pseudomonas aeruginosa, a pathogenic bacterium. Interestingly, an AIT01-secreted protein identified as GAPDH, a well-known bacterial moonlighting protein, mediated this protective effect. Intranasal delivery of the purified GAPDH conferred significant resistance against other Gram-negative pathogens (Klebsiella pneumoniae and Acinetobacter baumannii) and influenza A virus. Our findings demonstrate the potential of a native nasal microbe and its secretory protein to enhance innate immune defense against airway infections. These results offer a promising preventive measure, particularly relevant in the context of global pandemics.
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Affiliation(s)
- Gwanghee Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
- BioMe Inc., Seoul 02455, Korea
| | - Yoojin Lee
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jin Sun You
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Wontae Hwang
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jeewon Hwang
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Hwa Young Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jieun Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Ara Jo
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul 03080, Korea
- Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul 03080, Korea
| | - In ho Park
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Mohammed Ali
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jongsun Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jeon-Soo Shin
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Hyun Jik Kim
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul 03080, Korea
- Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul 03080, Korea
| | - Sang Sun Yoon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
- BioMe Inc., Seoul 02455, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Korea
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Velankanni P, Go SH, Jin JB, Park JS, Park S, Lee SB, Kwon HK, Pan CH, Cha KH, Lee CG. Chlorella vulgaris Modulates Gut Microbiota and Induces Regulatory T Cells to Alleviate Colitis in Mice. Nutrients 2023; 15:3293. [PMID: 37571230 PMCID: PMC10421373 DOI: 10.3390/nu15153293] [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: 06/08/2023] [Revised: 06/27/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Chlorella vulgaris (C. vulgaris) is unicellular green algae consumed worldwide as a functional food. The immune stimulatory function of C. vulgaris is known; however, no study has elucidated its immune regulatory potential and associated microbiome modulation. In the current study, we aimed to validate the immune regulatory role of C. vulgaris mediated through two mechanisms. Initially, we assessed its ability to promote the expansion of the regulatory T cell (Treg) population. Subsequently, we investigated its impact on gut microbiota composition and associated metabolites. The supplementation of C. vulgaris altered the gut microbiota composition, accompanied by increased short-chain fatty acid (SCFAs) production in mice at homeostasis. We later used C. vulgaris in the treatment of a DSS-induced colitis model. C. vulgaris intervention alleviated the pathological symptom of colitis in mice, with a corresponding increase in Treg levels. As C. vulgaris is a safe and widely used food supplement, it can be a feasible strategy to instigate cross-talk between the host immune system and the intestinal flora for the effective management of inflammatory bowel disease (IBD).
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Affiliation(s)
- Priyanka Velankanni
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea; (P.V.); (J.B.J.); (J.-S.P.); (S.P.)
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
| | - Seok-Ho Go
- Department of Preventive Medicine, School of Medicine, Kangwon National University, Chuncheon 24341, Republic of Korea;
| | - Jong Beom Jin
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea; (P.V.); (J.B.J.); (J.-S.P.); (S.P.)
| | - Jin-Soo Park
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea; (P.V.); (J.B.J.); (J.-S.P.); (S.P.)
| | - Sunhee Park
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea; (P.V.); (J.B.J.); (J.-S.P.); (S.P.)
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
| | - Su-Bin Lee
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; (S.-B.L.); (H.-K.K.)
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; (S.-B.L.); (H.-K.K.)
| | - Cheol-Ho Pan
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea; (P.V.); (J.B.J.); (J.-S.P.); (S.P.)
- Division of Bio-Medical Science and Technology, Korea Institute of Science and Technology (KIST), University of Science and Technology, Seoul 02792, Republic of Korea
| | - Kwang Hyun Cha
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea; (P.V.); (J.B.J.); (J.-S.P.); (S.P.)
- Division of Bio-Medical Science and Technology, Korea Institute of Science and Technology (KIST), University of Science and Technology, Seoul 02792, Republic of Korea
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju 26493, Republic of Korea
| | - Choong-Gu Lee
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea; (P.V.); (J.B.J.); (J.-S.P.); (S.P.)
- Division of Bio-Medical Science and Technology, Korea Institute of Science and Technology (KIST), University of Science and Technology, Seoul 02792, Republic of Korea
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju 26493, Republic of Korea
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Lee CG, Cha KH, Kim GC, Im SH, Kwon HK. Exploring probiotic effector molecules and their mode of action in gut-immune interactions. FEMS Microbiol Rev 2023; 47:fuad046. [PMID: 37541953 DOI: 10.1093/femsre/fuad046] [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: 02/13/2023] [Revised: 07/17/2023] [Accepted: 08/03/2023] [Indexed: 08/06/2023] Open
Abstract
Probiotics, live microorganisms that confer health benefits when consumed in adequate amounts, have gained significant attention for their potential therapeutic applications. The beneficial effects of probiotics are believed to stem from their ability to enhance intestinal barrier function, inhibit pathogens, increase beneficial gut microbes, and modulate immune responses. However, clinical studies investigating the effectiveness of probiotics have yielded conflicting results, potentially due to the wide variety of probiotic species and strains used, the challenges in controlling the desired number of live microorganisms, and the complex interactions between bioactive substances within probiotics. Bacterial cell wall components, known as effector molecules, play a crucial role in mediating the interaction between probiotics and host receptors, leading to the activation of signaling pathways that contribute to the health-promoting effects. Previous reviews have extensively covered different probiotic effector molecules, highlighting their impact on immune homeostasis. Understanding how each probiotic component modulates immune activity at the molecular level may enable the prediction of immunological outcomes in future clinical studies. In this review, we present a comprehensive overview of the structural and immunological features of probiotic effector molecules, focusing primarily on Lactobacillus and Bifidobacterium. We also discuss current gaps and limitations in the field and propose directions for future research to enhance our understanding of probiotic-mediated immunomodulation.
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Affiliation(s)
- Choong-Gu Lee
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, 679, Saimdang-ro, Gangneung 25451, Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, 679, Saimdang-ro, Seoul 02792, Korea
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, 20, Ilsan-ro, Wonju 26493, Korea
| | - Kwang Hyun Cha
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, 679, Saimdang-ro, Gangneung 25451, Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, 679, Saimdang-ro, Seoul 02792, Korea
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, 20, Ilsan-ro, Wonju 26493, Korea
| | - Gi-Cheon Kim
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, and Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seoul 03722, Korea
| | - Sin-Hyeog Im
- Department of Life Sciences, Pohang University of Science and Technology, 77, Cheongam-ro, Pohang 37673, Korea
- Institute for Convergence Research and Education, Yonsei University, 50-1 Yonsei-ro, Seoul 03722, Korea
- ImmunoBiome Inc, Bio Open Innovation Center, 77, Cheongam-ro, Pohang 37673 , Korea
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, and Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seoul 03722, Korea
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Lee YJ, Seok SH, Lee NY, Choi HJ, Lee YW, Chang HJ, Hwang JY, On DI, Noh HA, Lee SB, Kwon HK, Yun JW, Shin JS, Seo JY, Nam KT, Lee H, Lee HY, Park JW, Seong JK. Murine Coronavirus Disease 2019 Lethality Is Characterized by Lymphoid Depletion Associated with Suppressed Antigen-Presenting Cell Functionality. Am J Pathol 2023; 193:866-882. [PMID: 37024046 PMCID: PMC10073095 DOI: 10.1016/j.ajpath.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 04/08/2023]
Abstract
The disease severity of coronavirus disease 2019 (COVID-19) varies considerably from asymptomatic to serious, with fatal complications associated with dysregulation of innate and adaptive immunity. Lymphoid depletion in lymphoid tissues and lymphocytopenia have both been associated with poor disease outcomes in patients with COVID-19, but the mechanisms involved remain elusive. In this study, human angiotensin-converting enzyme 2 (hACE2) transgenic mouse models susceptible to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection were used to investigate the characteristics and determinants of lethality associated with the lymphoid depletion observed in SARS-CoV-2 infection. The lethality of Wuhan SARS-CoV-2 infection in K18-hACE2 mice was characterized by severe lymphoid depletion and apoptosis in lymphoid tissues related to fatal neuroinvasion. The lymphoid depletion was associated with a decreased number of antigen-presenting cells (APCs) and their suppressed functionality below basal levels. Lymphoid depletion with reduced APC function was a specific feature observed in SARS-CoV-2 infection but not in influenza A infection and had the greatest prognostic value for disease severity in murine COVID-19. Comparison of transgenic mouse models resistant and susceptible to SARS-CoV-2 infection revealed that suppressed APC function could be determined by the hACE2 expression pattern and interferon-related signaling. Thus, we demonstrated that lymphoid depletion associated with suppressed APC function characterizes the lethality of COVID-19 mouse models. Our data also suggest a potential therapeutic approach to prevent the severe progression of COVID-19 by enhancing APC functionality.
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Affiliation(s)
- Yu Jin Lee
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, ChunCheon, Republic of Korea
| | - Sang Hyeok Seok
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, ChunCheon, Republic of Korea
| | - Na Yun Lee
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, ChunCheon, Republic of Korea
| | - Hee Jin Choi
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, ChunCheon, Republic of Korea
| | - Yoon Woo Lee
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seoul, Republic of Korea
| | - Hee Jung Chang
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seoul, Republic of Korea
| | - Ji-Yeon Hwang
- Preclinical Research Center, Seoul National University Bundang Hospital, Seoul, Republic of Korea
| | - Da In On
- Korea Mouse Phenotyping Center, Seoul National University, Seoul, Republic of Korea
| | - Hyun Ah Noh
- Korea Mouse Phenotyping Center, Seoul National University, Seoul, Republic of Korea
| | - Su-Bin Lee
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jun-Won Yun
- College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jeon-Soo Shin
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea; Severance Biomedical Science Institute, and the Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jun-Young Seo
- Severance Biomedical Science Institute, and the Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ki Taek Nam
- Severance Biomedical Science Institute, and the Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ho Lee
- Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea
| | - Ho Young Lee
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seoul, Republic of Korea
| | - Jun Won Park
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, ChunCheon, Republic of Korea.
| | - Je Kyung Seong
- Korea Mouse Phenotyping Center, Seoul National University, Seoul, Republic of Korea; Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK 21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea.
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7
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Yoon JH, Do JS, Velankanni P, Lee CG, Kwon HK. Gut Microbial Metabolites on Host Immune Responses in Health and Disease. Immune Netw 2023; 23:e6. [PMID: 36911800 PMCID: PMC9995988 DOI: 10.4110/in.2023.23.e6] [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: 12/21/2022] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 03/07/2023] Open
Abstract
Intestinal microorganisms interact with various immune cells and are involved in gut homeostasis and immune regulation. Although many studies have discussed the roles of the microorganisms themselves, interest in the effector function of their metabolites is increasing. The metabolic processes of these molecules provide important clues to the existence and function of gut microbes. The interrelationship between metabolites and T lymphocytes in particular plays a significant role in adaptive immune functions. Our current review focuses on 3 groups of metabolites: short-chain fatty acids, bile acids metabolites, and polyamines. We collated the findings of several studies on the transformation and production of these metabolites by gut microbes and explained their immunological roles. Specifically, we summarized the reports on changes in mucosal immune homeostasis represented by the Tregs and Th17 cells balance. The relationship between specific metabolites and diseases was also analyzed through latest studies. Thus, this review highlights microbial metabolites as the hidden treasure having potential diagnostic markers and therapeutic targets through a comprehensive understanding of the gut-immune interaction.
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Affiliation(s)
- Jong-Hwi Yoon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jun-Soo Do
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Priyanka Velankanni
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
| | - Choong-Gu Lee
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science and Technology, Korea Institute of Science and Technology (KIST) School, University of Science and Technology, Seoul 02792, Korea
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul 03722, Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul 03722, Korea
- Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea
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8
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Yoon HJ, Kim GC, Oh S, Kim H, Kim YK, Lee Y, Kim MS, Kwon G, Ok YS, Kwon HK, Kim HS. WNK3 inhibition elicits antitumor immunity by suppressing PD-L1 expression on tumor cells and activating T-cell function. Exp Mol Med 2022; 54:1913-1926. [PMID: 36357569 PMCID: PMC9722663 DOI: 10.1038/s12276-022-00876-z] [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: 04/07/2022] [Revised: 07/24/2022] [Accepted: 08/17/2022] [Indexed: 11/12/2022] Open
Abstract
Immune checkpoint therapies, such as programmed cell death ligand 1 (PD-L1) blockade, have shown remarkable clinical benefit in many cancers by restoring the function of exhausted T cells. Hence, the identification of novel PD-L1 regulators and the development of their inhibition strategies have significant therapeutic advantages. Here, we conducted pooled shRNA screening to identify regulators of membrane PD-L1 levels in lung cancer cells targeting druggable genes and cancer drivers. We identified WNK lysine deficient protein kinase 3 (WNK3) as a novel positive regulator of PD-L1 expression. The kinase-dead WNK3 mutant failed to elevate PD-L1 levels, indicating the involvement of its kinase domain in this function. WNK3 perturbation increased cancer cell death in cancer cell-immune cell coculture conditions and boosted the secretion of cytokines and cytolytic enzymes, promoting antitumor activities in CD4+ and CD8+ T cells. WNK463, a pan-WNK inhibitor, enhanced CD8+ T-cell-mediated antitumor activity and suppressed tumor growth as a monotherapy as well as in combination with a low-dose anti-PD-1 antibody in the MC38 syngeneic mouse model. Furthermore, we demonstrated that the c-JUN N-terminal kinase (JNK)/c-JUN pathway underlies WNK3-mediated transcriptional regulation of PD-L1. Our findings highlight that WNK3 inhibition might serve as a potential therapeutic strategy for cancer immunotherapy through its concurrent impact on cancer cells and immune cells.
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Affiliation(s)
- Hyun Ju Yoon
- grid.15444.300000 0004 0470 5454Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Gi-Cheon Kim
- grid.15444.300000 0004 0470 5454Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
| | - Sejin Oh
- grid.15444.300000 0004 0470 5454Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Hakhyun Kim
- grid.15444.300000 0004 0470 5454Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Yong Keon Kim
- grid.15444.300000 0004 0470 5454Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Yunji Lee
- grid.15444.300000 0004 0470 5454Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Min Seo Kim
- grid.15444.300000 0004 0470 5454Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Gino Kwon
- grid.15444.300000 0004 0470 5454Graduate Program for Nanomedical Science, Yonsei University, Seoul, Korea
| | - Yeon-Su Ok
- grid.15444.300000 0004 0470 5454Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea
| | - Ho-Keun Kwon
- grid.15444.300000 0004 0470 5454Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
| | - Hyun Seok Kim
- grid.15444.300000 0004 0470 5454Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea ,grid.15444.300000 0004 0470 5454Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
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9
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Choi J, Kim BR, Akuzum B, Chang L, Lee JY, Kwon HK. TREGking From Gut to Brain: The Control of Regulatory T Cells Along the Gut-Brain Axis. Front Immunol 2022; 13:916066. [PMID: 35844606 PMCID: PMC9279871 DOI: 10.3389/fimmu.2022.916066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/30/2022] [Indexed: 12/12/2022] Open
Abstract
The human gastrointestinal tract has an enormous and diverse microbial community, termed microbiota, that is necessary for the development of the immune system and tissue homeostasis. In contrast, microbial dysbiosis is associated with various inflammatory and autoimmune diseases as well as neurological disorders in humans by affecting not only the immune system in the gastrointestinal tract but also other distal organs. FOXP3+ regulatory T cells (Tregs) are a subset of CD4+ helper T cell lineages that function as a gatekeeper for immune activation and are essential for peripheral autoimmunity prevention. Tregs are crucial to the maintenance of immunological homeostasis and tolerance at barrier regions. Tregs reside in both lymphoid and non-lymphoid tissues, and tissue-resident Tregs have unique tissue-specific phenotype and distinct function. The gut microbiota has an impact on Tregs development, accumulation, and function in periphery. Tregs, in turn, modulate antigen-specific responses aimed towards gut microbes, which supports the host–microbiota symbiotic interaction in the gut. Recent studies have indicated that Tregs interact with a variety of resident cells in central nervous system (CNS) to limit the progression of neurological illnesses such as ischemic stroke, Alzheimer’s disease, and Parkinson’s disease. The gastrointestinal tract and CNS are functionally connected, and current findings provide insights that Tregs function along the gut-brain axis by interacting with immune, epithelial, and neuronal cells. The purpose of this study is to explain our current knowledge of the biological role of tissue-resident Tregs, as well as the interaction along the gut-brain axis.
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Affiliation(s)
- Juli Choi
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, South Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Bo-Ram Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, South Korea
| | - Begum Akuzum
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, South Korea
| | - Leechung Chang
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, South Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - June-Yong Lee
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, South Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, South Korea
- *Correspondence: June-Yong Lee, ; Ho-Keun Kwon,
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, South Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, South Korea
- *Correspondence: June-Yong Lee, ; Ho-Keun Kwon,
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10
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Kwon HK, Choi GB, Huh JR. Maternal inflammation and its ramifications on fetal neurodevelopment. Trends Immunol 2022; 43:230-244. [PMID: 35131181 PMCID: PMC9005201 DOI: 10.1016/j.it.2022.01.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 12/12/2022]
Abstract
Exposure to heightened inflammation in pregnancy caused by infections or other inflammatory insults has been associated with the onset of neurodevelopmental and psychiatric disorders in children. Rodent models have provided unique insights into how this maternal immune activation (MIA) disrupts brain development. Here, we discuss the key immune factors involved, highlight recent advances in determining the molecular and cellular pathways of MIA, and review how the maternal immune system affects fetal development. We also examine the roles of microbiomes in shaping maternal immune function and the development of autism-like phenotypes. A comprehensive understanding of the gut bacteria-immune-neuro interaction in MIA is essential for developing diagnostic and therapeutic measures for high-risk pregnant women and identifying targets for treating inflammation-induced neurodevelopmental disorders.
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Affiliation(s)
- Ho-Keun Kwon
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases and Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea; Pohang University of Science and Technology, Pohang, Korea.
| | - Gloria B. Choi
- The Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jun R. Huh
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.,Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston, MA 02115, USA.,Correspondence: Ho-Keun Kwon () and Jun R. Huh ()
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11
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Kim E, Paik D, Ramirez RN, Biggs DG, Park Y, Kwon HK, Choi GB, Huh JR. Maternal gut bacteria drive intestinal inflammation in offspring with neurodevelopmental disorders by altering the chromatin landscape of CD4 + T cells. Immunity 2022; 55:145-158.e7. [PMID: 34879222 PMCID: PMC8755621 DOI: 10.1016/j.immuni.2021.11.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [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: 04/21/2021] [Revised: 08/29/2021] [Accepted: 11/10/2021] [Indexed: 01/13/2023]
Abstract
Children with autism spectrum disorders often display dysregulated immune responses and related gastrointestinal symptoms. However, the underlying mechanisms leading to the development of both phenotypes have not been elucidated. Here, we show that mouse offspring exhibiting autism-like phenotypes due to prenatal exposure to maternal inflammation were more susceptible to developing intestinal inflammation following challenges later in life. In contrast to its prenatal role in neurodevelopmental phenotypes, interleukin-17A (IL-17A) generated immune-primed phenotypes in offspring through changes in the maternal gut microbiota that led to postnatal alterations in the chromatin landscape of naive CD4+ T cells. The transfer of stool samples from pregnant mice with enhanced IL-17A responses into germ-free dams produced immune-primed phenotypes in offspring. Our study provides mechanistic insights into why children exposed to heightened inflammation in the womb might have an increased risk of developing inflammatory diseases in addition to neurodevelopmental disorders.
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Affiliation(s)
- Eunha Kim
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Donggi Paik
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Ricardo N Ramirez
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Delaney G Biggs
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Youngjun Park
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Ho-Keun Kwon
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Gloria B Choi
- The Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Jun R Huh
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA.
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12
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Lee NK, Wang CPJ, Lim J, Park W, Kwon HK, Kim SN, Kim TH, Park CG. Impact of the conjugation of antibodies to the surfaces of polymer nanoparticles on the immune cell targeting abilities. Nano Converg 2021; 8:24. [PMID: 34398322 PMCID: PMC8368787 DOI: 10.1186/s40580-021-00274-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 07/31/2021] [Indexed: 06/01/2023]
Abstract
Antibodies have been widely used to provide targeting ability and to enhance bioactivity owing to their high specificity, availability, and diversity. Recent advances in biotechnology and nanotechnology permit site-specific engineering of antibodies and their conjugation to the surfaces of nanoparticles (NPs) in various orientations through chemical conjugations and physical adhesions. This study proposes the conjugation of poly(lactic-co-glycolic acid) (PLGA) NPs with antibodies by using two distinct methods, followed by a comparison between the cell-targeting efficiencies of both techniques. Full-length antibodies were conjugated to the PLGA-poly(ethylene glycol)-carboxylic acid (PLGA-PEG-COOH) NPs through the conventional carbodiimide coupling reaction, and f(ab')2 antibody fragments were conjugated to the PLGA-poly(ethylene glycol)-maleimide(PLGA-PEG-Mal) NPs through interactions between the f(ab')2 fragment thiol groups and the maleimide located on the nanoparticle surface. The results demonstrate that the PLGA nanoparticles conjugated with the f(ab')2 antibody fragments had a higher targeting efficiency in vitro and in vivo than that of the PLGA nanoparticles conjugated with the full-length antibodies. The results of this study can be built upon to design a delivery technique for drugs through biocompatible nanoparticles.
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Affiliation(s)
- Na Kyeong Lee
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea
| | - Chi-Pin James Wang
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea
| | - Jaesung Lim
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea
| | - Wooram Park
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, Bucheon, Gyeonggi, 14662, Republic of Korea
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases and Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Se-Na Kim
- Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University, Seoul, 03080, Republic of Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84, Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea.
| | - Chun Gwon Park
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea.
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Gyeonggi, 16419, Republic of Korea.
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea.
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon, Gyeonggi, 16419, Republic of Korea.
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Abstract
Laboratory mice have long been an invaluable tool in biomedical science and have made significant contributions in research into life-threatening diseases. However, the translation of research results from mice to humans often proves difficult due to the incomplete nature of laboratory animal-based research. Hence, there is increasing demand for complementary methods or alternatives to laboratory mice that can better mimic human physiological traits and potentially bridge the translational research gap. Under these circumstances, the natural/naturalized mice including “wild”, “dirty”, “wildling”, and “wilded” systems have been found to better reflect some aspects of human pathophysiology. Here, we discuss the pros and cons of the laboratory mouse system and contemplate how wild mice and wild microbiota are able to help in refining such systems to better mimic the real-world situation and contribute to more productive translational research.
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Affiliation(s)
- Ho-Keun Kwon
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases and Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Je Kyung Seong
- Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, and BK 21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul, 08826, South Korea.
- Interdisciplinary Program for Bioinformatics, Program for Cancer Biology and BIO-MAX/N-Bio Institute, Seoul National University, Seoul, 08826, South Korea.
- Korea Mouse Phenotyping Center (KMPC), Seoul National University, Seoul, 08826, South Korea.
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14
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Kang HJ, Kim GC, Lee CG, Park S, Sharma G, Verma R, Im SH, Kwon HK. Probiotics-derived metabolite ameliorates skin allergy by promoting differentiation of FOXP3 + regulatory T cells. J Allergy Clin Immunol 2021; 147:1517-1521. [PMID: 33326803 DOI: 10.1016/j.jaci.2020.11.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 10/20/2020] [Accepted: 11/25/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Hye-Ji Kang
- Advanced Green Energy and Environment Institute, Handong Global University, Pohang, Korea; HEM, Pohang, Gyungbuk, Korea
| | - Gi-Cheon Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea; Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea
| | - Choong-Gu Lee
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung Institute of Natural Products, Gangneung, Korea
| | - Sunhee Park
- ImmunoBiome, Pohang University of Science and Technology Biotech Center, Pohang, Korea
| | - Garima Sharma
- ImmunoBiome, Pohang University of Science and Technology Biotech Center, Pohang, Korea
| | - Ravi Verma
- ImmunoBiome, Pohang University of Science and Technology Biotech Center, Pohang, Korea
| | - Sin-Hyoeg Im
- ImmunoBiome, Pohang University of Science and Technology Biotech Center, Pohang, Korea; Division of Integrative Biosciences and Biotechnology, Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea.
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea; Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea; Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea.
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15
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Kim GC, Lee CG, Verma R, Rudra D, Kim T, Kang K, Nam JH, Kim Y, Im SH, Kwon HK. ETS1 Suppresses Tumorigenesis of Human Breast Cancer via Trans-Activation of Canonical Tumor Suppressor Genes. Front Oncol 2020; 10:642. [PMID: 32477936 PMCID: PMC7239993 DOI: 10.3389/fonc.2020.00642] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 04/06/2020] [Indexed: 01/18/2023] Open
Abstract
ETS1 has shown dichotomous roles as an oncogene and a tumor suppressor gene in diverse cancers, but its functionality in breast cancer tumorigenesis still remains unclear. We utilized the Cancer Genome Atlas (TCGA) database to analyze comprehensive functions of ETS1 in human breast cancer (BRCA) patients by investigating its expression patterns and methylation status in relation to clinical prognosis. ETS1 expression was significantly diminished by hyper-methylation of the ETS1 promoter region in specimens from BRCA patients compared to a healthy control group. Moreover, ETS1high BRCA patients showed better prognosis and longer survival compared to ETS1low BRCA patients. Consistent with clinical evidence, comparative transcriptome analysis combined with CRISPR/Cas9 or shRNA based perturbation of ETS1 expression revealed direct as well as indirect mechanisms of ETS1 that hinder tumorigenesis of BRCA cells. Taken together, our study enlightens a novel function of ETS1 as a tumor suppressor in breast cancer cells.
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Affiliation(s)
- Gi-Cheon Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, South Korea.,Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Choong-Gu Lee
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung Institute of Natural Products, Gangneung, South Korea
| | - Ravi Verma
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, South Korea
| | - Dipayan Rudra
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, South Korea
| | - Taemook Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Keunsoo Kang
- Department of Microbiology, College of Natural Sciences, Dankook University, Cheonan, South Korea
| | - Jong Hee Nam
- Department of Pathology, Chonnam National University Medical School, Gwangju, South Korea
| | - Young Kim
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, South Korea
| | - Sin-Hyeog Im
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, South Korea.,Division of Integrative Biosciences and Biotechnology, Department of Life Sciences, Pohang University of Science and Technology, Pohang, South Korea
| | - Ho-Keun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, South Korea.,Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, South Korea
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16
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Kang LJ, Oh E, Cho C, Kwon H, Lee CG, Jeon J, Lee H, Choi S, Han SJ, Nam J, Song CU, Jung H, Kim HY, Park EJ, Choi EJ, Kim J, Eyun SI, Yang S. 3'-Sialyllactose prebiotics prevents skin inflammation via regulatory T cell differentiation in atopic dermatitis mouse models. Sci Rep 2020; 10:5603. [PMID: 32221370 PMCID: PMC7101440 DOI: 10.1038/s41598-020-62527-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/12/2020] [Indexed: 02/01/2023] Open
Abstract
3'-Sialyllactose (3'-SL), a natural prebiotic, maintains immune homeostasis and exerts anti-inflammatory and anti-arthritic effects. Although regulatory T cells (Tregs) prevent excessive inflammation and maintain immune tolerance, the effect of 3'-SL on Treg regulation is unclear. This study aimed to investigate the effect of 3'-SL on Treg responses in atopic dermatitis (AD) pathogenesis. Oral administration of 3'-SL reduced AD-like symptoms such as ear, epidermal, and dermal thickness in repeated topical application of house dust mites (HDM) and 2,4-dinitrochlorobenzene (DNCB). 3'-SL inhibited IgE, IL-1β, IL-6, and TNF-α secretion and markedly downregulated AD-related cytokines including IL-4, IL-5, IL-6, IL-13, IL-17, IFN-γ, TNF-α, and Tslp through regulation of NF-κB in ear tissue. Additionally, in vitro assessment of Treg differentiation revealed that 3'-SL directly induced TGF-β-mediated Treg differentiation. Furthermore, 3'-SL administration also ameliorated sensitization and elicitation of AD pathogenesis by suppressing mast cell infiltration and production of IgE and pro-inflammatory cytokines in mouse serum by mediating the Treg response. Furthermore, Bifidobacterium population was also increased by 3'-SL administration as prebiotics. Our data collectively show that 3'-SL has therapeutic effects against AD progression by inducing Treg differentiation, downregulating AD-related cytokines, and increasing the Bifidobacterium population.
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Affiliation(s)
- Li-Jung Kang
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Eunjeong Oh
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Chanmi Cho
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - HoKeun Kwon
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, 03722, Korea
| | - Choong-Gu Lee
- Korea Institute of Science & Technology (KIST) Gangneung Institute of Natural Products, Gangwon-do, 25451, Republic of Korea
| | - Jimin Jeon
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hyemi Lee
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Sangil Choi
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Seong Jae Han
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jiho Nam
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Chi-Une Song
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Hyunho Jung
- Synovizen Inc, Seoul, 06621, Republic of Korea
| | - Hye Young Kim
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- Laboratory of mucosal immunology, Department of Biomedical Science, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Eun-Jung Park
- East-West Medical Research Institute, Medical Science Research Institute, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Eun-Ju Choi
- Department of Physical Education, College of Education, Daegu Catholic University, Gyeongsan, 38430, Republic of Korea
| | - Jooyoung Kim
- Department of Anatomy, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
| | - Seong-Il Eyun
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea.
| | - Siyoung Yang
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, 16499, Republic of Korea.
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.
- CIRNO, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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Kwon HK, Hwang JS, So JS, Lee CG, Sahoo A, Ryu JH, Jeon WK, Ko BS, Lee SH, Park ZY, Im SH. Correction to: Cinnamon extract induces tumor cell death through inhibition of NFκB and AP1. BMC Cancer 2019; 19:1113. [PMID: 31727003 PMCID: PMC6857335 DOI: 10.1186/s12885-019-6342-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Affiliation(s)
- Ho-Keun Kwon
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Puk-ku, Gwangju, 500-712, Republic of Korea
| | - Ji-Sun Hwang
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Puk-ku, Gwangju, 500-712, Republic of Korea
| | - Jae-Seon So
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Puk-ku, Gwangju, 500-712, Republic of Korea
| | - Choong-Gu Lee
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Puk-ku, Gwangju, 500-712, Republic of Korea
| | - Anupama Sahoo
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Puk-ku, Gwangju, 500-712, Republic of Korea
| | - Jae-Ha Ryu
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Puk-ku, Gwangju, 500-712, Republic of Korea
| | - Won Kyung Jeon
- Korea Institute of Oriental Medicine, Daejeon, 305-811, Republic of Korea
| | - Byoung Seob Ko
- Korea Institute of Oriental Medicine, Daejeon, 305-811, Republic of Korea
| | - Sung Haeng Lee
- Chosun University School of Medicine, Gwangju, 501-759, Republic of Korea
| | - Zee Yong Park
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Puk-ku, Gwangju, 500-712, Republic of Korea
| | - Sin-Hyeog Im
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Puk-ku, Gwangju, 500-712, Republic of Korea.
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18
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Ronin E, Lubrano di Ricco M, Vallion R, Divoux J, Kwon HK, Grégoire S, Collares D, Rouers A, Baud V, Benoist C, Salomon BL. The NF-κB RelA Transcription Factor Is Critical for Regulatory T Cell Activation and Stability. Front Immunol 2019; 10:2487. [PMID: 31749798 PMCID: PMC6842949 DOI: 10.3389/fimmu.2019.02487] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 10/04/2019] [Indexed: 01/01/2023] Open
Abstract
Regulatory T cells (Tregs) play a major role in immune homeostasis and in the prevention of autoimmune diseases. It has been shown that c-Rel is critical in Treg thymic differentiation, but little is known on the role of NF-κB on mature Treg biology. We thus generated mice with a specific knockout of RelA, a key member of NF-κB, in Tregs. These mice developed a severe autoimmune syndrome with multi-organ immune infiltration and high activation of lymphoid and myeloid cells. Phenotypic and transcriptomic analyses showed that RelA is critical in the acquisition of the effector Treg state independently of surrounding inflammatory environment. Unexpectedly, RelA-deficient Tregs also displayed reduced stability and cells that had lost Foxp3 produced inflammatory cytokines. Overall, we show that RelA is critical for Treg biology as it promotes both the generation of their effector phenotype and the maintenance of their identity.
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Affiliation(s)
- Emilie Ronin
- Sorbonne Université, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Martina Lubrano di Ricco
- Sorbonne Université, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Romain Vallion
- Sorbonne Université, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Jordane Divoux
- Sorbonne Université, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Ho-Keun Kwon
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, United States
| | - Sylvie Grégoire
- Sorbonne Université, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Davi Collares
- Laboratoire NF-κB, Differentiation and Cancer, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Angéline Rouers
- Sorbonne Université, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Véronique Baud
- Laboratoire NF-κB, Differentiation and Cancer, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Christophe Benoist
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, United States
| | - Benoit L Salomon
- Sorbonne Université, INSERM, CNRS, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
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Lee CG, Kwon HK, Kang H, Kim Y, Nam JH, Won YH, Park S, Kim T, Kang K, Rudra D, Jun CD, Park ZY, Im SH. Ets1 suppresses atopic dermatitis by suppressing pathogenic T cell responses. JCI Insight 2019; 4:124202. [PMID: 30843878 DOI: 10.1172/jci.insight.124202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 01/29/2019] [Indexed: 01/03/2023] Open
Abstract
Atopic dermatitis (AD) is a complex inflammatory skin disease mediated by immune cells of both adaptive and innate types. Among them, CD4+ Th cells are one of major players of AD pathogenesis. Although the pathogenic role of Th2 cells has been well characterized, Th17/Th22 cells are also implicated in the pathogenesis of AD. However, the molecular mechanisms underlying pathogenic immune responses in AD remain unclear. We sought to investigate how the defect in the AD susceptibility gene, Ets1, is involved in AD pathogenesis in human and mice and its clinical relevance in disease severity by identifying Ets1 target genes and binding partners. Consistent with the decrease in ETS1 levels in severe AD patients and the experimental AD-like skin inflammation model, T cell-specific Ets1-deficient mice (Ets1ΔdLck) developed severe AD-like symptoms with increased pathogenic Th cell responses. A T cell-intrinsic increase of gp130 expression upon Ets1 deficiency promotes the gp130-mediated IL-6 signaling pathway, thereby leading to the development of severe AD-like symptoms. Functional blocking of gp130 by selective inhibitor SC144 ameliorated the disease pathogenesis by reducing pathogenic Th cell responses. Our results reveal a protective role of Ets1 in restricting pathogenic Th cell responses and suggest a potential therapeutic target for AD treatment.
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Affiliation(s)
- Choong-Gu Lee
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute of Natural Products, Gangneung, South Korea.,Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, South Korea
| | - Ho-Keun Kwon
- Department of Microbiology, College of Medicine, Yonsei University, Seoul, South Korea
| | - Hyeji Kang
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, South Korea
| | - Young Kim
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, South Korea
| | | | - Young Ho Won
- Department of Dermatology, Chonnam National University Medical School, Gwangju, South Korea
| | - Sunhee Park
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, South Korea
| | - Taemook Kim
- Department of Microbiology, Dankook University, Cheonan, South Korea
| | - Keunsoo Kang
- Department of Microbiology, Dankook University, Cheonan, South Korea
| | - Dipayan Rudra
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, South Korea.,Division of Integrative Biosciences and Biotechnology (IBB), Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Chang-Duk Jun
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea
| | - Zee Yong Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea
| | - Sin-Hyeog Im
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, South Korea.,Division of Integrative Biosciences and Biotechnology (IBB), Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
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20
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Abstract
This in vitro study examined the utility of comparing red fluorescence between active and inactive caries lesions and investigated whether changes in red fluorescence and fluorescence loss are influenced by lesion activity following remineralization. Sixty-two noncavitated smooth surface caries lesions on extracted human teeth were classified into active or inactive lesions using the Nyvad system prior to a 12-day pH-cycling procedure. Quantitative light-induced fluorescence-digital images were used to measure fluorescence parameters before and after pH cycling. At baseline, the intensity (ΔR) and area (AΔR) of red fluorescence were 1.5- and 2.2-fold higher in active lesions than in inactive lesions (p<0.05). The ratio of AΔR to lesion area was associated with classification of active lesions (odds ratio = 1.031; 95% confidence interval = 1.005-1.058). After pH cycling, the active lesions showed about 2- and 8-fold greater reductions in the median values of AΔR and fluorescence loss related to lesion volume (ΔQ) compared with inactive lesions (p<0.05). In conclusion, red fluorescence differs depending on lesion activity, and the red fluorescence area and lesion volume change following remineralization. The results suggest that measuring red fluorescence may be a useful way of objectively evaluating lesion activity of smooth surface lesions.
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21
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Lee JY, Lee ES, Kim GM, Jung HI, Lee JW, Kwon HK, Kim BI. Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing Loss. J Epidemiol 2018; 29:302-307. [PMID: 30344198 PMCID: PMC6614080 DOI: 10.2188/jea.je20180052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Some previous studies reported hearing ability can be reduced by impaired masticatory ability, but there has been little evidence reported of an association between hearing loss and unilateral mastication. Therefore, this study aimed to investigate the relationship between unilateral mastication (UM), estimated from individual functional tooth units (FTUs), and hearing loss in a representative sample of Korean adults. METHODS The analyzed data were obtained from 1,773 adults aged 40-89 years who participated in Korean national survey. Hearing loss was defined as a pure-tone average of >25 dB at frequencies of 0.5, 1, 2, and 4 kHz in either ear. In each subject, UM was calculated as the difference in the sums of the FTU scores, which is an index of posterior tooth occlusion, on the two sides of the oral cavity. The scores were used to classify the UM into low, moderate, and high. The adjusted odds ratios (aORs) and their 95% confidence intervals (CIs) were calculated in multivariable logistic regression analyses. RESULTS When controlling for sociodemographic factors, the aOR for hearing loss was 3.12 (95% CI, 1.21-8.03) for high UM relative to low UM. This association remained in a fully-adjusted model containing factors related to noise exposure (aOR 2.88; 95% CI, 1.12-7.46). CONCLUSION Adults with high UM as measured using FTUs showed a higher occurrence of hearing loss than those with low UM.
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Affiliation(s)
- Joo-Young Lee
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry
| | - Eun-Song Lee
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry
| | - Gyung-Min Kim
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry
| | - Hoi-In Jung
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry
| | - Jeong-Woo Lee
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry
| | - Ho-Keun Kwon
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry
| | - Baek-Il Kim
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry.,Oral Science Research Institute, Yonsei University College of Dentistry
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Kwon DH, Kwon HK, Kim DH, Yang CY. Larval species composition and genetic structures of Carposina sasakii, Grapholita dimorpha, and Grapholita molesta from Korea. Bull Entomol Res 2018; 108:241-252. [PMID: 28758607 DOI: 10.1017/s0007485317000694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Rapid determination of the larval species composition and understanding of their genetic structure is important to establish the appropriate management system for multiple species infesting in fruits. We established accurate and rapid diagnostic methods based on multiplex polymerase chain reaction (PCR) diagnostic techniques to discriminate the three major lepidopteran species in orchard, Carposina sasakii, Grapholita dimorpha, and Grapholita molesta. Each species was identified by amplifying species-specific PCR products (375 bp for C. sasakii, 125 and 234 bp for G. dimorpha, and 125 bp for G. molesta). Based on species composition analysis from six types of infested fruits, G. dimorpha constituted the highest proportion (47.8%), followed by 35.2 and 13.5% for G. molesta and C. sasakii, respectively. Interestingly, high prevalence was found in G. dimorpha and G. molesta for plum and peach, respectively. Based on genetic diversity analysis, the three insect species exhibited moderate or high haplotype diversity and low nucleotide diversity, ranging from 0.319 to 0.699 and 0.0006 to 0.0045, respectively. Demographic expansion was not detected according to either a neutrality test or mismatch distribution analysis. Moreover, no significant genetic structure corresponding to province, host plant, fruit type, or collection period was observed. These results suggest that the population of each species would have high dispersal ability following fruit-generating periods via intrinsic host adaptation ability regardless of the spatial and temporal conditions. Determination of larval composition on fruit is valuable for establishing appropriate management systems that take the species into consideration; additionally, population genetic approaches can be utilized to understand the effects of environmental factors (province, host fruit, fruit type, etc.) on population structures.
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Affiliation(s)
- D H Kwon
- Research Institute of Agriculture and Life Science, Seoul National University,Seoul 08826,Republic of Korea
| | - H K Kwon
- Horticultural and Herbal Crop Environment Division,National Institute of Horticultural and Herbal Science, Rural Development Administration,Jeollabuk-do 55365,Republic of Korea
| | - D H Kim
- Horticultural and Herbal Crop Environment Division,National Institute of Horticultural and Herbal Science, Rural Development Administration,Jeollabuk-do 55365,Republic of Korea
| | - C Y Yang
- Horticultural and Herbal Crop Environment Division,National Institute of Horticultural and Herbal Science, Rural Development Administration,Jeollabuk-do 55365,Republic of Korea
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Kwon HK, Chen HM, Mathis D, Benoist C. Different molecular complexes that mediate transcriptional induction and repression by FoxP3. Nat Immunol 2017; 18:1238-1248. [PMID: 28892470 PMCID: PMC5679728 DOI: 10.1038/ni.3835] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/15/2017] [Indexed: 12/13/2022]
Abstract
FoxP3 conditions the transcriptional signature and functional facets of regulatory T cells (Treg cells). Its mechanism of action, whether as an activator or a repressor, has remained unclear. Here, chromatin analysis showed that FoxP3 bound active enhancer elements, not repressed chromatin, around loci over- or under-expressed in Treg cells. We evaluated the impact of a panel of FoxP3 mutants on its transcriptional activity and interactions with DNA, transcriptional cofactors and chromatin. Computational integration, confirmed by biochemical interaction and size analyses, showed that FoxP3 existed in distinct multimolecular complexes. It was active and primarily an activator when complexed with the transcriptional factors RELA, IKZF2 and KAT5. In contrast, FoxP3 was inactive when complexed with the histone methyltransferase EZH2 and transcription factors YY1 and IKZF3. The latter complex partitioned to a peripheral region of the nucleus, as shown by super-resolution microscopy. Thus, FoxP3 acts in multimodal fashion to directly activate or repress transcription, in a context- and partner-dependent manner, to govern Treg cell phenotypes.
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Affiliation(s)
- Ho-Keun Kwon
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
| | - Hui-Min Chen
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
| | - Diane Mathis
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
| | - Christophe Benoist
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
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24
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Lee ES, Yim HK, Lee HS, Choi JH, Kwon HK, Kim BI. Plaque autofluorescence as potential diagnostic targets for oral malodor. J Biomed Opt 2016; 21:85005. [PMID: 27564316 DOI: 10.1117/1.jbo.21.8.085005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 08/09/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study was to determine whether the degree of tongue and interdental plaque can be used to assess oral malodor by quantifying their fluorescence as detected using quantitative light-induced fluorescence (QLF) technology. Ninety-nine subjects who complained of oral malodor were included. The level of oral malodor was quantified using the organoleptic score (OLS) and the concentration of volatile sulfur compounds (VSCs). The fluorescence properties of tongue and interdental plaque were quantified as scores calculated by multiplying the intensity and area of fluorescence in QLF-digital images, and the combined plaque fluorescence (CPF) score was obtained by summing the scores for the two regions. The associations of the scores with malodor levels and the diagnostic accuracy of the CPF score were analyzed. The two plaque fluorescence scores and their combined score differed significantly with the level of oral malodor (p<0.001). The CPF score was moderately correlated with OLS (r=0.64) and VSC levels (r=0.54), and its area under the receiver operating characteristic curve was 0.77 for identifying subjects with definite oral malodor (OLS≥2). In conclusion, plaque fluorescence from tongue and interdental sites as detected using QLF technology can be used to assess the level of oral malodor.
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Affiliation(s)
- Eun-Song Lee
- Yonsei University College of Dentistry, Oral Science Research Institute, Department of Preventive Dentistry and Public Oral Health, BK21 PLUS Project, 50 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Hyun-Kyung Yim
- Yonsei University College of Dentistry, Oral Science Research Institute, Department of Preventive Dentistry and Public Oral Health, BK21 PLUS Project, 50 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Hyung-Suk Lee
- Yonsei University College of Dentistry, Oral Science Research Institute, Department of Preventive Dentistry and Public Oral Health, BK21 PLUS Project, 50 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Jong-Hoon Choi
- Yonsei University College of Dentistry, Department of Orofacial Pain and Oral medicine, 50 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Ho-Keun Kwon
- Yonsei University College of Dentistry, Oral Science Research Institute, Department of Preventive Dentistry and Public Oral Health, BK21 PLUS Project, 50 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Baek-Il Kim
- Yonsei University College of Dentistry, Oral Science Research Institute, Department of Preventive Dentistry and Public Oral Health, BK21 PLUS Project, 50 Yonsei-ro, Seoul 03722, Republic of Korea
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Kwon HK, Kim GC, Hwang JS, Kim Y, Chae CS, Nam JH, Jun CD, Rudra D, Surh CD, Im SH. Transcription factor NFAT1 controls allergic contact hypersensitivity through regulation of activation induced cell death program. Sci Rep 2016; 6:19453. [PMID: 26777750 PMCID: PMC4726067 DOI: 10.1038/srep19453] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 12/14/2015] [Indexed: 01/21/2023] Open
Abstract
Allergic contact hypersensitivity (CHS) is an inflammatory skin disease mediated by allergen specific T cells. In this study, we investigated the role of transcription factor NFAT1 in the pathogenesis of contact hypersensitivity. NFAT1 knock out (KO) mice spontaneously developed CHS-like skin inflammation in old age. Healthy young NFAT1 KO mice displayed enhanced susceptibility to hapten-induced CHS. Both CD4+ and CD8+ T cells from NFAT1 KO mice displayed hyper-activated properties and produced significantly enhanced levels of inflammatory T helper 1(Th1)/Th17 type cytokines. NFAT1 KO T cells were more resistant to activation induced cell death (AICD), and regulatory T cells derived from these mice showed a partial defect in their suppressor activity. NFAT1 KO T cells displayed a reduced expression of apoptosis associated BCL-2/BH3 family members. Ectopic expression of NFAT1 restored the AICD defect in NFAT1 KO T cells and increased AICD in normal T cells. Recipient Rag2−/− mice transferred with NFAT1 KO T cells showed more severe CHS sensitivity due to a defect in activation induced hapten-reactive T cell apoptosis. Collectively, our results suggest the NFAT1 plays a pivotal role as a genetic switch in CD4+/CD8+ T cell tolerance by regulating AICD process in the T cell mediated skin inflammation.
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Affiliation(s)
- Ho-Keun Kwon
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Republic of Korea
| | - Gi-Cheon Kim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Republic of Korea.,Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 790-784, Republic of Korea
| | - Ji Sun Hwang
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 790-784, Republic of Korea.,New Drug Development center, Daegu Gyeongbuk Medical Innovation Foundation, 80, Cheombok-ro, Dong-gu, Daegu, Korea
| | - Young Kim
- Chonnam National University Medical School, Gwangju 501-749, Korea
| | - Chang-Suk Chae
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 790-784, Republic of Korea
| | - Jong Hee Nam
- Chonnam National University Medical School, Gwangju 501-749, Korea
| | - Chang-Duk Jun
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Republic of Korea
| | - Dipayan Rudra
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 790-784, Republic of Korea
| | - Charles D Surh
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 790-784, Republic of Korea.,Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea
| | - Sin-Hyeog Im
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 790-784, Republic of Korea.,Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology, Pohang, 790-784, Republic of Korea
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Jun MK, Ku HM, Kim E, Kim HE, Kwon HK, Kim BI. Detection and Analysis of Enamel Cracks by Quantitative Light-induced Fluorescence Technology. J Endod 2016; 42:500-4. [PMID: 26794344 DOI: 10.1016/j.joen.2015.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 11/24/2015] [Accepted: 12/06/2015] [Indexed: 11/19/2022]
Abstract
INTRODUCTION The ability to accurately detect tooth cracks and quantify their depth would allow the prediction of crack progression and treatment success. The aim of this in vitro study was to determine the capabilities of quantitative light-induced fluorescence (QLF) technology in the detection of enamel cracks. METHODS Ninety-six extracted human teeth were selected for examining naturally existing or suspected cracked teeth surfaces using a photocuring unit. QLF performed with a digital camera (QLF-D) images were used to assess the ability to detect enamel cracks based on the maximum fluorescence loss value (ΔFmax, %), which was then analyzed using the QLF-D software. A histologic evaluation was then performed in which the samples were sectioned and observed with the aid of a polarized light microscope. The relationship between ΔFmax and the histology findings was assessed based on the Spearman rank correlation. The sensitivity and specificity were calculated to evaluate the validity of using QLF-D to analyze enamel inner-half cracks and cracks extending to the dentin-enamel junction. RESULTS There was a strong correlation between the results of histologic evaluations of enamel cracks and the ΔFmax value, with a correlation coefficient of 0.84. The diagnostic accuracy of QLF-D had a sensitivity of 0.87 and a specificity of 0.98 for enamel inner-half cracks and a sensitivity of 0.90 and a specificity of 1.0 for cracks extending to the dentin-enamel junction. CONCLUSIONS These results indicate that QLF technology would be a useful clinical tool for diagnosing enamel cracks, especially given that this is a nondestructive method.
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Affiliation(s)
- Mi-Kyoung Jun
- Department of Preventive Dentistry and Public Oral Health, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Hye-Min Ku
- Department of Preventive Dentistry and Public Oral Health, College of Dentistry, Yonsei University, Seoul, South Korea; BK 21 PLUS Project, Yonsei University, College of Dentistry, Seoul, South Korea
| | - Euiseong Kim
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Hee-Eun Kim
- Department of Dental Hygiene, Gachon University College of Health Science, Incheon, South Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry and Public Oral Health, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry and Public Oral Health, College of Dentistry, Yonsei University, Seoul, South Korea; BK 21 PLUS Project, Yonsei University, College of Dentistry, Seoul, South Korea; Oral Science Research Institute, Yonsei University, College of Dentistry, Seoul, South Korea.
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Kang SM, Lee SS, Kwon HK, Kim BI. Short-term improvement of masticatory function after implant restoration. J Periodontal Implant Sci 2015; 45:205-9. [PMID: 26734490 PMCID: PMC4698946 DOI: 10.5051/jpis.2015.45.6.205] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/07/2015] [Indexed: 11/17/2022] Open
Abstract
Purpose Dental implants present several advantages over other tooth replacement options. However, there has been little research on masticatory function in relation to implant treatment. Therefore, the aim of the present study was to evaluate the improvement of masticatory function two weeks after implant restoration. Methods Masticatory ability was evaluated with the subjective food intake ability (FIA) and objective mixing ability index (MAI) methods. Fifty-four subjects with first and second missing molars completed the study. The subjects were asked to complete a self-reported questionnaire about 30 different food items, and to chew wax samples 10 times both before and two weeks after implant restoration. A total of 108 waxes were analyzed with an image analysis program. Results Dental implant restoration for lost molar teeth on one side increased the FIA score by 9.0% (P<0.0001). The MAI score also increased, by 14.3% after implant restoration (P<0.0001). Comparison between the good and poor mastication groups, which were subdivided based on the median MAI score before implant restoration, showed that the FIA score of the poor group was enhanced 1.1-fold while its MAI score was enhanced 2.0-fold two weeks after an implant surgery. Conclusions Using the FIA and MAI assessment methods, this study showed that masticatory function was improved two weeks after implant restoration. In particular, the enhancement of masticatory function by implant restoration was greater in patients with relatively poor initial mastication than in those with good initial mastication.
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Affiliation(s)
- Si-Mook Kang
- Department of Preventive Dentistry and Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea.; Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Sang-Soo Lee
- Department of Preventive Dentistry and Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry and Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry and Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea.; Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
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Han SY, Kim BR, Ko HY, Kwon HK, Kim BI. Assessing the use of Quantitative Light-induced Fluorescence-Digital as a clinical plaque assessment. Photodiagnosis Photodyn Ther 2015; 13:34-39. [PMID: 26691322 DOI: 10.1016/j.pdpdt.2015.12.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [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: 09/17/2015] [Revised: 11/12/2015] [Accepted: 12/07/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND The aims of this study were to compare the relationship between red fluorescent plaque (RF plaque) area by Quantitative Light-induced Fluorescence-Digital (QLF-D) and disclosed plaque area by two-tone disclosure, and to assess the bacterial composition of the RF plaque by real time-PCR. METHODS Fifty healthy subjects were included and 600 facial surfaces of their anterior teeth were examined. QLF-D was taken on two separate occasions (before and after disclosing), and the RF plaque area was calculated based on Plaque Percent Index (PPI). After disclosing, the stained plaque area was analyzed to investigate the relationship with the RF plaque area. The relationship was evaluated using Pearson correlation and paired t-test. Then, the RF and non-red fluorescent (non-RF) plaque samples were obtained from the same subject for real-time PCR test. Total 10 plaque samples were compared the ratio of the 6 of bacteria using Wilcoxon signed rank test. RESULTS Regarding the paired t-test, the blue-staining plaque area (9.3±9.2) showed significantly similarity with the RF plaque area (9.1±14.9, p=0.80) at ΔR20, however, the red-staining plaque area (31.6±20.9) presented difference from the RF plaque area (p<0.0001). In addition, bacterial composition of Prevotella intermedia and Streptococcus anginosus was associated with substantially more the RF plaque than the non-RF plaque (p<0.05). CONCLUSIONS The plaque assessment method using QLF-D has potential to detect mature plaque, and the plaque area was associated with the blue-staining area using two-tone disclosure.
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Affiliation(s)
- Sun-Young Han
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea; Department of Dental Hygiene, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Bo-Ra Kim
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Hae-Youn Ko
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry & Public Oral Health, Oral Science Research Center, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea.
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Han SY, Kim BR, Ko HY, Kwon HK, Kim BI. Validity and reliability of autofluorescence-based quantification method of dental plaque. Photodiagnosis Photodyn Ther 2015; 12:587-91. [DOI: 10.1016/j.pdpdt.2015.10.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/10/2015] [Accepted: 10/08/2015] [Indexed: 11/27/2022]
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Ko HY, Kang SM, Kim HE, Kwon HK, Kim BI. Validation of quantitative light-induced fluorescence-digital (QLF-D) for the detection of approximal caries in vitro. J Dent 2015; 43:568-75. [DOI: 10.1016/j.jdent.2015.02.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 02/14/2015] [Accepted: 02/17/2015] [Indexed: 11/30/2022] Open
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Nam SH, Jung HI, Kang SM, Inaba D, Kwon HK, Kim BI. Validity of Screening Methods for Periodontitis Using Salivary Hemoglobin Level and Self-Report Questionnaires in People with Disabilities. J Periodontol 2015; 86:536-45. [DOI: 10.1902/jop.2015.140457] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Kim YJ, Kwon HK, Lee JM, Kim YJ, Kim HJ, Jung NY, Kim ST, Lee KH, Na DL, Seo SW. White matter microstructural changes in pure Alzheimer's disease and subcortical vascular dementia. Eur J Neurol 2015; 22:709-16. [PMID: 25603760 DOI: 10.1111/ene.12645] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 09/11/2014] [Accepted: 11/12/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Recent studies have demonstrated that Alzheimer's disease (AD) and subcortical vascular dementia (SVaD) have white matter (WM) microstructural changes. However, previous studies on AD and SVaD rarely eliminated the confounding effects of patients with mixed Alzheimer's and cerebrovascular disease pathologies. Therefore, our aim was to evaluate the divergent topography of WM microstructural changes in patients with pure AD and SVaD. METHODS Patients who were clinically diagnosed with AD and SVaD were prospectively recruited. Forty AD patients who were Pittsburgh compound B (PiB) positive [PiB(+) AD] without WM hyperintensities and 32 SVaD patients who were PiB negative [PiB(-) SVaD] were chosen. Fifty-six cognitively normal individuals were also recruited (NC). Tract-based spatial statistics of diffuse tensor imaging were used to compare patterns of fractional anisotropy (FA) and mean diffusivity (MD). RESULTS Compared with the NC group, the PiB(+) AD group showed decreased FA in the bilateral frontal, temporal and parietal WM regions and the genu and splenium of the corpus callosum as well as increased MD in the left frontal and temporal WM region. PiB(-) SVaD patients showed decreased FA and increased MD in all WM regions. Direct comparison between PiB(+) AD and PiB(-) SVaD groups showed that the PiB(-) SVaD group had decreased FA across all WM regions and increased MD in all WM regions except occipital regions. CONCLUSION Our findings suggest that pure AD and pure SVaD have divergent topography of WM microstructural changes including normal appearing WM.
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Affiliation(s)
- Y J Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Neuroscience Center, Samsung Medical Center, Seoul, Korea
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Affiliation(s)
- Hae-Youn Ko
- Department of Preventive Dentistry & Public Oral Health, Seoul, Korea
- BK21 PLUS Project, Seoul, Korea
| | - Si-Mook Kang
- Department of Preventive Dentistry & Public Oral Health, Seoul, Korea
- BK21 PLUS Project, Seoul, Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry & Public Oral Health, Seoul, Korea
- BK21 PLUS Project, Seoul, Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry & Public Oral Health, Seoul, Korea
- BK21 PLUS Project, Seoul, Korea
- Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Korea
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Lee SY, Jung HI, Jung BY, Cho YS, Kwon HK, Kim BI. Desensitizing Efficacy of Nano-Carbonate Apatite Dentifrice and Er,Cr:YSGG Laser: A Randomized Clinical Trial. Photomed Laser Surg 2015; 33:9-14. [DOI: 10.1089/pho.2014.3787] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Su-Young Lee
- Department of Dental Hygiene, NamSeoul University, Cheon-an, Korea
| | - Hoi-In Jung
- Department of Preventive Dentistry and Public Oral Health, Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Korea
| | - Bock-Young Jung
- Department of Advanced General Dentistry, College of Dentistry, Yonsei University, Seoul Korea
| | - Young-Sik Cho
- Department of Dental Hygiene, NamSeoul University, Cheon-an, Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry and Public Oral Health, Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry and Public Oral Health, Oral Science Research Institute, BK 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
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Kim YS, Lee ES, Kwon HK, Kim BI. Corrigendum to “Monitoring the maturation process of a dental microcosm biofilm using the Quantitative Light-induced Fluorescence-Digital (QLF-D)” [J. Dent. 42 (2014) 691–696]. J Dent 2014. [DOI: 10.1016/j.jdent.2014.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Ye CJ, Feng T, Kwon HK, Raj T, Wilson MT, Asinovski N, McCabe C, Lee MH, Frohlich I, Paik HI, Zaitlen N, Hacohen N, Stranger B, De Jager P, Mathis D, Regev A, Benoist C. Intersection of population variation and autoimmunity genetics in human T cell activation. Science 2014; 345:1254665. [PMID: 25214635 DOI: 10.1126/science.1254665] [Citation(s) in RCA: 166] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
T lymphocyte activation by antigen conditions adaptive immune responses and immunopathologies, but we know little about its variation in humans and its genetic or environmental roots. We analyzed gene expression in CD4(+) T cells during unbiased activation or in T helper 17 (T(H)17) conditions from 348 healthy participants representing European, Asian, and African ancestries. We observed interindividual variability, most marked for cytokine transcripts, with clear biases on the basis of ancestry, and following patterns more complex than simple T(H)1/2/17 partitions. We identified 39 genetic loci specifically associated in cis with activated gene expression. We further fine-mapped and validated a single-base variant that modulates YY1 binding and the activity of an enhancer element controlling the autoimmune-associated IL2RA gene, affecting its activity in activated but not regulatory T cells. Thus, interindividual variability affects the fundamental immunologic process of T helper activation, with important connections to autoimmune disease.
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Affiliation(s)
- Chun Jimmie Ye
- Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA 02142, USA
| | - Ting Feng
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Ho-Keun Kwon
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Towfique Raj
- Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA 02142, USA. Program in Translational NeuroPsychiatric Genomics, Institute for the Neurosciences, Departments of Neurology and Psychiatry, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Michael T Wilson
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Natasha Asinovski
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Cristin McCabe
- Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA 02142, USA. Program in Translational NeuroPsychiatric Genomics, Institute for the Neurosciences, Departments of Neurology and Psychiatry, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Michelle H Lee
- Program in Translational NeuroPsychiatric Genomics, Institute for the Neurosciences, Departments of Neurology and Psychiatry, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Irene Frohlich
- Program in Translational NeuroPsychiatric Genomics, Institute for the Neurosciences, Departments of Neurology and Psychiatry, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Hyun-il Paik
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Noah Zaitlen
- Department of Medicine Lung Biology Center, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Nir Hacohen
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Barbara Stranger
- Section of Genetic Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Philip De Jager
- Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA 02142, USA. Program in Translational NeuroPsychiatric Genomics, Institute for the Neurosciences, Departments of Neurology and Psychiatry, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Diane Mathis
- Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA 02142, USA. Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Aviv Regev
- Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA 02142, USA. Howard Hughes Medical Institute, Department of Biology, MIT, Cambridge, MA 02139, USA.
| | - Christophe Benoist
- Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA 02142, USA. Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA.
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Yim HK, Min JH, Kwon HK, Kim BI. Modification of surface pretreatment of white spot lesions to improve the safety and efficacy of resin infiltration. Korean J Orthod 2014; 44:195-202. [PMID: 25133134 PMCID: PMC4130915 DOI: 10.4041/kjod.2014.44.4.195] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Revised: 12/17/2013] [Accepted: 01/09/2014] [Indexed: 11/25/2022] Open
Abstract
Objective A low-viscosity resin (infiltrant) was used to inhibit the progression of white spot lesions (WSLs) and resolve associated esthetic issues. An alternative pretreatment was explored to increase the pore volume of the surface layer of the WSLs. Also, the penetration effects of the infiltrant were evaluated for various pretreatments. Methods Sixty two artificial lesions were fabricated on bovine teeth. As a positive control, 15% HCl gel was applied for 120 seconds. Further, 37% H3PO4 gel was applied for 30 seconds using three methods. The samples were divided as follows: H3PO4 only group, H3PO4 sponge group, and H3PO4 brush group. The acid was gently rubbed with the applicators (i.e., a sponge or brush) throughout the application time. To compare the effects of resin infiltration, twenty paired halves of specimens were treated with an infiltrant (ICON®). Results Thicknesses of the removed surface layers and infiltrated areas were evaluated by confocal laser scanning microscope. The positive control and the 37% H3PO4 brush group failed to show significant differences in the removed thickness (p > 0.05); however, the mean percentage of the infiltrated area was higher in the 37% H3PO4 brush group (84.13 ± 7.58%) than the positive control (63.51 ± 7.62%, p < 0.001). Scanning electron microscope observations indicate higher pore volumes for the 37% H3PO4 brush group than for the positive control. Conclusions Application of 37% H3PO4 with a brush for 30 seconds increased the pore volume of WSL surface layers and the percentage of infiltrated areas in comparison to the use of 15% HCl for 120 seconds.
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Affiliation(s)
- Hyun-Kyung Yim
- Department of Preventive Dentistry and Public Oral Health, Brain Korea 21 PLUS Project, College of Dentistry, Yonsei University, Seoul, Korea
| | - Ji-Hyun Min
- Department of Preventive Dentistry and Public Oral Health, Brain Korea 21 PLUS Project, College of Dentistry, Yonsei University, Seoul, Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry and Public Oral Health, Brain Korea 21 PLUS Project, College of Dentistry, Yonsei University, Seoul, Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry and Public Oral Health, Brain Korea 21 PLUS Project, College of Dentistry, Yonsei University, Seoul, Korea
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Yim HK, Kwon HK, Kim BI. Modification of surface pre-treatment for resin infiltration to mask natural white spot lesions. J Dent 2014; 42:588-94. [DOI: 10.1016/j.jdent.2014.01.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 01/21/2014] [Accepted: 01/24/2014] [Indexed: 11/29/2022] Open
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Jung EH, Lee ES, Kang SM, Kwon HK, Kim BI. Assessing the clinical validity of a new caries activity test using dental plaque acidogenicity. ACTA ACUST UNITED AC 2014. [DOI: 10.11149/jkaoh.2014.38.2.77] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Eun-Ha Jung
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Eun-Song Lee
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Si-Mook Kang
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
- Oral Science Research Institute, Yonsei University College of Dentistry, Seoul, Korea
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Affiliation(s)
- Hye-Min Ku
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
- Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
| | - Bo-Ra Kim
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
- Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
| | - Si-Mook Kang
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
- Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
| | - Jung-Ho Chung
- Future IT R&D Laboratory, LG Electronics, Seoul, Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
- Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea
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Lee ES, Kang SM, Ko HY, Kwon HK, Kim BI. Association between the cariogenicity of a dental microcosm biofilm and its red fluorescence detected by Quantitative Light-induced Fluorescence-Digital (QLF-D). J Dent 2013; 41:1264-70. [PMID: 24012520 DOI: 10.1016/j.jdent.2013.08.021] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 08/23/2013] [Accepted: 08/26/2013] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE This study evaluated whether Quantitative Light-induced Fluorescence-Digital (QLF-D) can detect the levels of cariogenicity of dental microcosm biofilms by assessing the red fluorescence intensity. METHODS Dental microcosm biofilms were initiated from human saliva on bovine enamel discs. Biofilms with various levels of cariogenicity were then grown in artificial saliva supplemented with sucrose at different concentrations (0.05%, 0.1%, 0.2%, and 0.5%) in 24-well microplates. After 10 days, fluorescence images of the biofilms were captured by the QLF-D to analyse the red fluorescence intensity, which was quantified as the red/green ratio (R/G value). The supernatant pH was also measured, as well as the total and aciduric bacteria counts of the collected biofilms. Mineral loss in enamel was also evaluated by calculating the percentage of surface microhardness changes (%SHC). RESULTS The R/G values of the biofilms differed significantly with the sucrose concentration (p<0.0001), increasing consistently as the sucrose concentration increased from 0.05% (=0.91) to 0.5% (=2.56). Strong correlation was identified between the R/G value and the number of aciduric bacteria (r=0.83, p<0.0001), supernatant pH (r=-0.95, p<0.0001), and %SHC (r=0.90, p<0.0001). CONCLUSIONS The red fluorescence as observed by the QLF-D was correlated with the cariogenic properties of dental microcosm biofilms in vitro, which indicates that this device can be used to detect the levels of cariogenicity of a dental biofilm. CLINICAL SIGNIFICANCE The QLF-D is able to assess the cariogenic levels of dental plaque based on the intensity of red fluorescence.
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Affiliation(s)
- Eun-Song Lee
- Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-Gu, Seoul, Republic of Korea
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Affiliation(s)
- Bo-Ra Kim
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- Brain Korea 21 PLUS Project, Seoul, Korea
| | - Ji-Hyun Min
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
| | - Ho-Keun Kwon
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- Brain Korea 21 PLUS Project, Seoul, Korea
- Oral Science Research Center, Seoul, Korea
| | - Baek-Il Kim
- Department of Preventive Dentistry & Public Oral Health, Yonsei University College of Dentistry, Seoul, Korea
- Brain Korea 21 PLUS Project, Seoul, Korea
- Oral Science Research Center, Seoul, Korea
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Chae CS, Kwon HK, Hwang JS, Kim JE, Im SH. Prophylactic effect of probiotics on the development of experimental autoimmune myasthenia gravis. PLoS One 2012; 7:e52119. [PMID: 23284891 PMCID: PMC3527378 DOI: 10.1371/journal.pone.0052119] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [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: 04/30/2012] [Accepted: 11/12/2012] [Indexed: 12/03/2022] Open
Abstract
Probiotics are live bacteria that confer health benefits to the host physiology. Although protective role of probiotics have been reported in diverse diseases, no information is available whether probiotics can modulate neuromuscular immune disorders. We have recently demonstrated that IRT5 probiotics, a mixture of 5 probiotics, could suppress diverse experimental disorders in mice model. In this study we further investigated whether IRT5 probiotics could modulate the progression of experimental autoimmune myasthenia gravis (EAMG). Myasthenia gravis (MG) is a T cell dependent antibody mediated autoimmune disorder in which acetylcholine receptor (AChR) at the neuromuscular junction is the major auto-antigen. Oral administration of IRT5 probiotics significantly reduced clinical symptoms of EAMG such as weight loss, body trembling and grip strength. Prophylactic effect of IRT5 probiotics on EMAG is mediated by down-regulation of effector function of AChR-reactive T cells and B cells. Administration of IRT5 probiotics decreased AChR-reactive lymphocyte proliferation, anti-AChR reactive IgG levels and inflammatory cytokine levels such as IFN-γ, TNF-α, IL-6 and IL-17. Down-regulation of inflammatory mediators in AChR-reactive lymphocytes by IRT5 probiotics is mediated by the generation of regulatory dendritic cells (rDCs) that express increased levels of IL-10, TGF-β, arginase 1 and aldh1a2. Furthermore, DCs isolated from IRT5 probiotics-fed group effectively converted CD4+ T cells into CD4+Foxp3+ regulatory T cells compared with control DCs. Our data suggest that IRT5 probiotics could be applicable to modulate antibody mediated autoimmune diseases including myasthenia gravis.
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Affiliation(s)
- Chang-Suk Chae
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju, Korea
| | - Ho-Keun Kwon
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju, Korea
| | - Ji-Sun Hwang
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju, Korea
| | - Jung-Eun Kim
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju, Korea
| | - Sin-Hyeog Im
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju, Korea
- * E-mail:
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Hwang JS, Kwon HK, Kim JE, Rho J, Im SH. Immunomodulatory effect of water soluble extract separated from mycelium of Phellinus linteus on experimental atopic dermatitis. BMC Complement Altern Med 2012; 12:159. [PMID: 22988890 PMCID: PMC3479073 DOI: 10.1186/1472-6882-12-159] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2011] [Accepted: 08/12/2012] [Indexed: 11/10/2022]
Abstract
BACKGROUND Complementary and alternative medicine (CAM) is becoming a popular treatment for modulating diverse immune disorders. Phellinus linteus (P. linteus) as one of the CAMs has been used to modulate cancers, inflammation and allergic activities. However, little evidence has been shown about its underlying mechanism of action by which it exerts a beneficial role in dermatological disease in vivo. In this study, we examined the immunomodulatory effects of P. linteus on experimental atopic dermatitis (AD) and elucidated its action mechanism. METHODS The immunomodulatory effect of total extract of P. linteus on IgE production by human myeloma U266B1 cells was measured by ELISA. To further identify the effective components, P. linteus was fractionated into methanol soluble, water soluble and boiling water soluble extracts. Each extract was treated to U266B1 cells and primary B cells to compare their inhibitory effects on IgE secretion. To test the in vivo efficacy, experimental atopic dermatitis (AD) was established by alternative treatment of DNCB and house dust mite extract into BALB/c mice. Water soluble extract of P. linteus (WA) or ceramide as a positive control were topically applied to ears of atopic mouse every day for 2 weeks and progression of the disease was estimated by the following criteria: (a) ear thickness, clinical score, (b) serum total IgE, IgG and mite specific IgE level by ELSIA, (c) histological examination of ear tissue by H&E staining and (d) cytokine profile of total ear cells and CD4(+) T cells by real time PCR and ELSIA. RESULTS Treatment of total extracts of P. linteus to U266B1 inhibited IgE secretion. Among the diverse extracts of P. linteus, water soluble extract of P. linteus (WA) significantly reduced the IgE production in primary B cells and B cell line U266B1. Moreover, treatment of WA reduced AD symptoms such as ear swelling, erythema, and dryness and decreased recruitment of lymphocyte into the inflamed site. Interestingly WA treatment significantly reduced IgE level without affecting IgG levels and also down-regulated the levels of pathogenic cytokines (IL-4, IL-13, IL-12 and IFN-γ) and chemokines (CCL17 and CCL22) involved in AD development. CONCLUSIONS Our study indicates that protective effect of water soluble extract of P. linteus in atopic dermatitis is mediated by inhibiting IgE production and expression of AD associated pathogenic cytokines as well as chemokines, suggesting the beneficial effect of P. linteus to modulate allergic skin disease.
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Lee IH, Kwon HK, An S, Kim D, Kim S, Yu MK, Lee JH, Lee TS, Im SH, Jon S. Imageable antigen-presenting gold nanoparticle vaccines for effective cancer immunotherapy in vivo. Angew Chem Int Ed Engl 2012; 51:8800-5. [PMID: 22847719 DOI: 10.1002/anie.201203193] [Citation(s) in RCA: 147] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Indexed: 01/08/2023]
Affiliation(s)
- In-Hyun Lee
- Biological Science Department, Korea Advanced Institute of Science and Technology, 291 Daehak-ro,Yuseong-gu, Daejeon 305-701, South Korea
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Lee IH, Kwon HK, An S, Kim D, Kim S, Yu MK, Lee JH, Lee TS, Im SH, Jon S. Imageable Antigen-Presenting Gold Nanoparticle Vaccines for Effective Cancer Immunotherapy In Vivo. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203193] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lee CG, Kwon HK, Sahoo A, Hwang W, So JS, Hwang JS, Chae CS, Kim GC, Kim JE, So HS, Hwang ES, Grenningloh R, Ho IC, Im SH. Interaction of Ets-1 with HDAC1 represses IL-10 expression in Th1 cells. J Immunol 2012; 188:2244-53. [PMID: 22266280 DOI: 10.4049/jimmunol.1101614] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
IL-10 is a multifunctional cytokine that plays a crucial role in immunity and tolerance. IL-10 is produced by diverse immune cell types, including B cells and subsets of T cells. Although Th1 produce IL-10, their expression levels are much lower than Th2 cells under conventional stimulation conditions. The potential role of E26 transformation-specific 1 (Ets-1) transcription factor as a negative regulator for Il10 gene expression in CD4(+) T cells has been implicated previously. In this study, we investigated the underlying mechanism of Ets-1-mediated Il10 gene repression in Th1 cells. Compared with wild type Th1 cells, Ets-1 knockout Th1 cells expressed a significantly higher level of IL-10, which is comparable with that of wild type Th2 cells. Upregulation of IL-10 expression in Ets-1 knockout Th1 cells was accompanied by enhanced chromatin accessibility and increased recruitment of histone H3 acetylation at the Il10 regulatory regions. Reciprocally, Ets-1 deficiency significantly decreased histone deacetylase 1 (HDAC1) enrichment at the Il10 regulatory regions. Treatment with trichostatin A, an inhibitor of HDAC family, significantly increased Il10 gene expression by increasing histone H3 acetylation recruitment. We further demonstrated a physical interaction between Ets-1 and HDAC1. Coexpression of Ets-1 with HDAC1 synergistically repressed IL-10 transcription activity. In summary, our data suggest that an interaction of Ets-1 with HDAC1 represses the Il10 gene expression in Th1 cells.
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Affiliation(s)
- Choong-Gu Lee
- School of Life Sciences and Immune Synapse Research Center, Gwangju Institute of Science and Technology, Gwangju 500-712, The Republic of Korea
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Kim YS, Kwon HK, Kim BI. Effect of nano-carbonate apatite to prevent re-stain after dental bleaching in vitro. J Dent 2011; 39:636-42. [PMID: 21763391 DOI: 10.1016/j.jdent.2011.07.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 06/30/2011] [Accepted: 07/01/2011] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVES This study examined the effect of nano-carbonate apatite (n-CAP) to prevent re-staining and the change of enamel surface after dental bleaching in vitro. METHODS Twenty-four bovine specimens were bleached for 2 weeks with 10% carbamide peroxide (CP). After bleaching, the specimens were divided into the following four groups: distilled and deionized water (DDW, negative control), 10% n-CAP, NaF (positive control) and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP, positive control). Each group was subjected to pH cycling for 7 days. The specimens were treated for 4 min 3 times per day and re-staining was induced naturally by artificial saliva in the remineralization process. After pH cycling, the changes in colour were evaluated with spectrophotometry and scanning electron microscopy (SEM). The difference in colour between before and after pH cycling was evaluated using an ANOVA and Tukey test. RESULTS After pH cycling, the colour difference of n-CAP group was significantly lower than that of the DDW and CPP-ACP groups (p<0.05). SEM showed that n-CAP particles were deposited regularly on the damaged surface compared to the other groups. CONCLUSION 10% n-CAP could significantly maintain the initial colour and protect the damaged enamel structure after bleaching.
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Affiliation(s)
- Y S Kim
- Department of Preventive Dentistry and Public Oral Health, Research Center for Orofacial Hard Tissue Regeneration Brain Korea 21 project, College of Dentistry, Yonsei University, Seoul, Republic of Korea
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Min JH, Kwon HK, Kim BI. The addition of nano-sized hydroxyapatite to a sports drink to inhibit dental erosion: in vitro study using bovine enamel. J Dent 2011; 39:629-35. [PMID: 21763390 DOI: 10.1016/j.jdent.2011.07.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 06/30/2011] [Accepted: 07/01/2011] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES This study examined the dental erosion and demineralization potential of a sports drink containing nano-sized hydroxyapatite (nano-HA) as an additive. METHODS The experimental solutions were Powerade (PA) alone and PA with 0.05%, 0.10%, and 0.25% nano-HA. The pH, titratable acidity, and calcium and phosphate content of each solution were analysed, and the degree of saturation with respect to the dental enamel (DS(En)) was obtained. Twelve sound bovine enamel specimens for each group were treated in accordance with the pH-cycling schedule which had 60min treatment with experimental solution per day for 7 days. The erosion potential was determined from the changes in surface micro hardness (SMH), the depths of erosion and demineralized layer using confocal laser scanning microscopy (CLSM), and the morphological changes to the tooth surface were examined with scanning electron microscopy (SEM) after pH-cycling. RESULTS pH and DS(En) increased with increasing nano-HA concentration in the drinks, whereas the titratable acidity decreased. There were significant differences in the SMH between the PA alone and >0.10% nano-HA groups (p<0.001). Although the PA alone group showed a pronounced erosion depth, CLSM showed no erosion depth in 0.25% nano-HA group. SEM showed an intact surface with increasing nano-HA concentration in the drinks. In conclusion, dental erosion was effectively prevented with increase of adding concentration of nano-HA, and a sports drink containing 0.25% nano-HA might prevent dental erosion.
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Affiliation(s)
- J H Min
- Department of Preventive Dentistry and Public Oral Health, Research Center for Orofacial Hard Tissue Regeneration, College of Dentistry, Yonsei University, Seoul, Republic of Korea
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Lee IH, An S, Yu MK, Kwon HK, Im SH, Jon S. Targeted chemoimmunotherapy using drug-loaded aptamer-dendrimer bioconjugates. J Control Release 2011; 155:435-41. [PMID: 21641946 DOI: 10.1016/j.jconrel.2011.05.025] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Accepted: 05/22/2011] [Indexed: 12/21/2022]
Abstract
We reported an innovative, targeted chemoimmuno drug-delivery system. Although chemoimmunotherapy, as an alternative to or in combination with conventional therapeutic systems, has been in the forefront of recent oncological research, as presently configured, such systems face several major obstacles for efficient clinical application. Here, we establish a novel nano-platform for effective chemoimmunotherapy designed to overcome the drawbacks of conventional cancer therapies, describing a delivery system based on a dendrimer and a single-strand DNA-A9 PSMA (prostate-specific membrane antigen) RNA aptamer hybrid. Employing these vehicles, we demonstrate the promising possibility of this chemoimmuno therapeutic system against prostate cancer in in vivo and in vitro models.
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Affiliation(s)
- In-Hyun Lee
- Cell Dynamics Research Center, School of Life Sciences, Gwang ju Institute of Science and Technology, Buk-gu, Gwang ju, Republic of Korea
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