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Wuenschell JK, Jee Y, Lau DK, Yu Y, Ohodnicki PR. Combined plasmonic Au-nanoparticle and conducting metal oxide high-temperature optical sensing with LSTO. Nanoscale 2020; 12:14524-14537. [PMID: 32614015 DOI: 10.1039/d0nr03306e] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fiber optic sensor technology offers several advantages for harsh-environment applications. However, the development of optical gas sensing layers that are stable under harsh environmental conditions is an ongoing research challenge. In this work, electronically conducting metal oxide lanthanum-doped strontium titanate (LSTO) films embedded with gold nanoparticles are examined as a sensing layer for application in reducing gas flows at high temperature (600-800 °C). A strong localized surface plasmon resonance (LSPR) based response to hydrogen is demonstrated in the visible region of the spectrum, while a Drude free electron-based response is observed in the near-IR. Characteristics of these responses are studied both on planar glass substrates and on silica fibers. Charge transfer between the oxide film and the gold nanoparticles is explored as a possible mechanism governing the Au LSPR response and is considered in terms of the corresponding properties of the conducting metal oxide-based matrix phase. Principal component analysis is applied to the combined plasmonic and free-carrier based response over a range of temperatures and hydrogen concentrations. It is demonstrated that the combined visible and near-IR response of these films provides improved versatility for multiwavelength interrogation, as well as improved discrimination of important process parameters (concentration and temperature) through application of multivariate analysis techniques.
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Affiliation(s)
- Jeffrey K Wuenschell
- National Energy Technology Laboratory, 626 Cochrans Mill Rd., P.O. Box 10940, Pittsburgh, PA 15236-0940, USA. and Leidos Research Support Team, 626 Cochrans Mill Rd., P.O. Box 10940, Pittsburgh, PA 15236-0940, USA
| | - Youngseok Jee
- National Energy Technology Laboratory, 626 Cochrans Mill Rd., P.O. Box 10940, Pittsburgh, PA 15236-0940, USA. and Leidos Research Support Team, 626 Cochrans Mill Rd., P.O. Box 10940, Pittsburgh, PA 15236-0940, USA
| | - Derek K Lau
- National Energy Technology Laboratory, 626 Cochrans Mill Rd., P.O. Box 10940, Pittsburgh, PA 15236-0940, USA. and ORISE, 626 Cochrans Mill Rd., P.O. Box 10940, Pittsburgh, PA 15236-0940, USA
| | - Yang Yu
- National Energy Technology Laboratory, 626 Cochrans Mill Rd., P.O. Box 10940, Pittsburgh, PA 15236-0940, USA.
| | - Paul R Ohodnicki
- National Energy Technology Laboratory, 626 Cochrans Mill Rd., P.O. Box 10940, Pittsburgh, PA 15236-0940, USA.
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Kim H, Herath K, Kim A, Mihindukulasooriya S, Ko M, Jeon Y, Jee Y, Kim H. Protective effect of a brown algae, Sargassum horneri on particulate matter-induced oxidative stress and inflammation in MLE-12 cells. The Journal of Immunology 2019. [DOI: 10.4049/jimmunol.202.supp.187.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
The constant exposure to fine particulate matter (PM) induces oxidative stress and proinflammatory cytokine production. The ROS formed by oxidative stress is related to activate NF-κB signal pathway for inflammation. Sargassum horneri, a brown algae found in East Asia, is known to be an excellent source for bioactive components. In this study, the antioxidant and anti-inflammation effects of Sargassum horneri ethanol extract (SHE) on the PM-induced oxidative stress in MLE-12, a type II alveolar epithelial cell line were investigated. As the exposure concentration of PM increased to 1,000 μg/mL, the cell viability was reduced; however, it was increased when treated with SHE. The ROS generation and lipid peroxidation of MLE-12 cells were increased from the PM concentration of 125 μg/mL and they were reduced after treatment of SHE at 62.5 and 125 μg/mL. The expressions of antioxidant enzymes, catalase (CAT) and superoxide dismutase (SOD2), in MLE-12 cells exposed to PM were lower than those exposed to PM with SHE. The PM was proved to increase the expression of 8-OHdG, one of DNA oxidative damage markers, and OGG1, the repair enzyme of 8-OHdG, while SHE protected the DNA damage of cell. The expression of NF-κB signaling was reduced by SHE. These results suggest that SHE can adjust the expression of antioxidant enzymes, help to suppress the oxidative stress induced by PM, and attenuate its oxidative damage and NF-κB pathway to lung epithelial cells by eliminating over-produced ROS.
This research is part of a project titled ‘Development of functional food products with natural materials derived from marine resources’ funded by the Ministry of Oceans and Fisheries, Republic of Korea in 2017 (Project NO. 20172085).
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Affiliation(s)
| | | | - A. Kim
- 1Jeju Natl. Univ., South Korea
| | | | - M. Ko
- 1Jeju Natl. Univ., South Korea
| | - Y. Jeon
- 1Jeju Natl. Univ., South Korea
| | - Y. Jee
- 1Jeju Natl. Univ., South Korea
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Jee Y, Yu Y, Abernathy HW, Lee S, Kalapos TL, Hackett GA, Ohodnicki PR. Plasmonic Conducting Metal Oxide-Based Optical Fiber Sensors for Chemical and Intermediate Temperature-Sensing Applications. ACS Appl Mater Interfaces 2018; 10:42552-42563. [PMID: 30430821 DOI: 10.1021/acsami.8b11956] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The demand for real-time sensors in harsh environments at elevated temperature is significant and increasing. In this manuscript, the chemical and temperature sensing using the optical response through the practical fiber platform is demonstrated, and principle component analysis is coupled with targeted experimental film characterization to understand the fundamental sensing layer properties, which dominate measured gas sensing responses in complex gas mixtures. More specifically, tin-doped indium oxide-decorated sensors fabricated with the sol-gel method show stable and stepwise transmission responses varying over a wide range of H2 concentration (5-100%) at 250-350 °C as well as responses to CH4 and CO to a lesser extent. Measured responses are attributed to modifications to the surface plasmon resonance absorption in the near-infrared range and are dominated by the highest concentrations of the most-reducing analyte based upon systematic mixed gas stream experiments. Principal component analysis is utilized for this type of sensor to improve the quantitative and qualitative understanding of responses, clearly identifying that the dominant principle component (PC #1) accounts for ∼78% of total data variance. Correlations between PC #1 and the experimentally derived free carrier concentration confirm that this material property plays the strongest role on the ITO gas sensing mechanism, while correlations between the free carrier mobility and the second most important principle component (PC #2) suggest that this quantity may play a significant but secondary role. As such, the results presented here clarify the relationship between generalized principle components and fundamental sensing materials properties thereby suggesting the pathway toward improved multicomponent gas speciation through sensor layer engineering. The work presented represents a significant step toward the ultimate objective of optical waveguide sensors integrated with multivariate data analytics for multiparameter monitoring with a single sensor element.
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Affiliation(s)
- Youngseok Jee
- United States Department of Energy , National Energy Technology Laboratory , 626 Cochrans Mill Road , Pittsburgh , Pennsylvania 15236 , United States
- AECOM , 626 Cochrans Mill Road , Pittsburgh , Pennsylvania 15236 , United States
| | - Yang Yu
- United States Department of Energy , National Energy Technology Laboratory , 626 Cochrans Mill Road , Pittsburgh , Pennsylvania 15236 , United States
- AECOM , 626 Cochrans Mill Road , Pittsburgh , Pennsylvania 15236 , United States
| | - Harry W Abernathy
- United States Department of Energy , National Energy Technology Laboratory , 3610 Collins Ferry Road , Morgantown , West Virginia 26507 , United States
- AECOM , 3610 Collins Ferry Road , Morgantown , West Virginia 26507 , United States
| | - Shiwoo Lee
- United States Department of Energy , National Energy Technology Laboratory , 3610 Collins Ferry Road , Morgantown , West Virginia 26507 , United States
- AECOM , 3610 Collins Ferry Road , Morgantown , West Virginia 26507 , United States
| | - Thomas L Kalapos
- United States Department of Energy , National Energy Technology Laboratory , 626 Cochrans Mill Road , Pittsburgh , Pennsylvania 15236 , United States
- AECOM , 626 Cochrans Mill Road , Pittsburgh , Pennsylvania 15236 , United States
| | - Gregory A Hackett
- United States Department of Energy , National Energy Technology Laboratory , 3610 Collins Ferry Road , Morgantown , West Virginia 26507 , United States
| | - Paul R Ohodnicki
- United States Department of Energy , National Energy Technology Laboratory , 626 Cochrans Mill Road , Pittsburgh , Pennsylvania 15236 , United States
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Chien PH, Jee Y, Huang C, Dervişoğlu R, Hung I, Gan Z, Huang K, Hu YY. On the origin of high ionic conductivity in Na-doped SrSiO 3. Chem Sci 2016; 7:3667-3675. [PMID: 29997858 PMCID: PMC6008723 DOI: 10.1039/c5sc04270d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 11/09/2015] [Accepted: 02/17/2016] [Indexed: 11/21/2022] Open
Abstract
Na+ motion in an amorphous β-Na2Si2O5 phase was identified to be responsible for the high ionic conductivity of Na-doped SrSiO3.
Understanding the local structure and ion dynamics is at the heart of ion conductor research. This paper reports on high-resolution solid-state 29Si, 23Na, and 17O NMR investigation of the structure, chemical composition, and ion dynamics of a newly discovered fast ion conductor, Na-doped SrSiO3, which exhibited a much higher ionic conductivity than most of current oxide ion conductors. Quantitative analyses reveal that with a small dose (<10 mol%) of Na, the doped Na integrates into the SrSiO3 structure to form NaxSr1–xSiO3–0.5x, and with >10 mol% Na doping, phase separation occurs, leading to the formation of an amorphous phase β-Na2Si2O5 and a crystalline Sr-rich phase. Variable-temperature 23Na and 17O magic-angle-spinning NMR up to 618 °C have shown significant changes in Na ion dynamics at high temperatures but little oxide ion motion, suggesting that Na ions are responsible for the observed high ionic conductivity. In addition, β-Na2Si2O5 starts to crystallize at temperatures higher than 480 °C with prolonged heating, resulting in reduction in Na+ motion, and thus degradation of ionic conductivity. This study has contributed critical evidence to the understanding of ionic conduction in Na-doped SrSiO3 and demonstrated that multinuclear high-resolution and high-temperature solid-state NMR is a uniquely useful tool for investigating ion conductors at their operating conditions.
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Affiliation(s)
- Po-Hsiu Chien
- Department of Chemistry and Biochemistry , Florida State University , Tallahassee , FL 32306 , USA .
| | - Youngseok Jee
- Department of Mechanical Engineering , University of South Carolina , Columbia , SC 29208 , USA
| | - Chen Huang
- Department of Scientific Computing , Florida State University , Tallahassee , FL 32306 , USA
| | - Riza Dervişoğlu
- Institute for Molecules and Materials , Radboud University , Nijmegen , AJ 6525 , Netherland
| | - Ivan Hung
- Centre of Interdisciplinary Magnetic Resonance , National High Magnetic Field Laboratory , 1800 East Paul Dirac Drive , Tallahassee , FL 32310 , USA
| | - Zhehong Gan
- Centre of Interdisciplinary Magnetic Resonance , National High Magnetic Field Laboratory , 1800 East Paul Dirac Drive , Tallahassee , FL 32310 , USA
| | - Kevin Huang
- Department of Mechanical Engineering , University of South Carolina , Columbia , SC 29208 , USA
| | - Yan-Yan Hu
- Department of Chemistry and Biochemistry , Florida State University , Tallahassee , FL 32306 , USA . .,Centre of Interdisciplinary Magnetic Resonance , National High Magnetic Field Laboratory , 1800 East Paul Dirac Drive , Tallahassee , FL 32310 , USA
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Zhang P, Tong J, Jee Y, Huang K. Stabilizing a high-temperature electrochemical silver-carbonate CO2 capture membrane by atomic layer deposition of a ZrO2 overcoat. Chem Commun (Camb) 2016; 52:9817-20. [DOI: 10.1039/c6cc04501d] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A high-selectivity and high-flux electrochemical silver-carbonate dual-phase membrane was coated with a nanoscaled ZrO2 layer by atomic layer deposition (ALD) for stable CO2 capture at high temperatures (≥800 °C).
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Affiliation(s)
- Peng Zhang
- Department of Mechanical Engineering
- University of South Carolina
- Columbia
- USA
| | - Jingjing Tong
- Department of Mechanical Engineering
- University of South Carolina
- Columbia
- USA
| | - Youngseok Jee
- Department of Mechanical Engineering
- University of South Carolina
- Columbia
- USA
| | - Kevin Huang
- Department of Mechanical Engineering
- University of South Carolina
- Columbia
- USA
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Bing SJ, Ha D, Ahn G, Cho J, Kim A, Park SK, Yu HS, Jee Y. Galectin isolated from parasite inhibits remission of experimental autoimmune encephalomyelitis by up-regulating autoantibody. Clin Exp Immunol 2015; 180:419-31. [PMID: 25619397 DOI: 10.1111/cei.12594] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 01/10/2015] [Accepted: 01/19/2015] [Indexed: 11/27/2022] Open
Abstract
Recently, parasite infections or parasite-derived products have been suggested as a therapeutic strategy with suppression of immunopathology, which involves the induction of regulatory T cells or/and T helper type 2 (Th2) responses. In a recent study, researchers reported that constructed recombinant galectin (rTl-gal) isolated from an adult worm of the gastrointestinal nematode parasite Toxascaris leonina attenuated clinical symptoms of inflammatory bowel disease in mice treated with dextran sulphate sodium. Noting the role of rTl-gal in inflammatory disease, we attempted to investigate the effect of the parasite via its rTl-gal on neuronal autoimmune disease using experimental autoimmune encephalomyelitis (EAE), a mouse inflammatory and demyelinating autoimmune disease model of human multiple sclerosis. In this model, rTl-gal-treated experimental autoimmune encephalomyelitis (EAE) mice failed to recover after the peak of the disease, leading to persistent central nervous system (CNS) damage, such as demyelination, gliosis and axonal damage. Further, rTl-gal-treated EAE mice markedly increased the number of CD45R/B220(+) B cells in both infiltrated inflammation and the periphery, along with the increased production of autoantibody [anti-myelin oligodendrocyte glycoprotein (MOG)35-55 ] in serum at chronic stage. Upon antigen restimulation, rTl-gal treatment affected the release of overall cytokines, especially interferon (IFN)-γ and tumour necrosis factor (TNF)-α. Our results suggest that galectin isolated from a gastrointestinal parasite can deliver a harmful effect to EAE contrary to its beneficial effect on inflammatory bowel disease.
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Affiliation(s)
- S J Bing
- Department of Veterinary Medicine and Institute for nuclear science & technology, Jeju National University, Jeju, South Korea
| | - D Ha
- Department of Veterinary Medicine and Institute for nuclear science & technology, Jeju National University, Jeju, South Korea
| | - G Ahn
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, South Korea
| | - J Cho
- Department of Veterinary Medicine and Institute for nuclear science & technology, Jeju National University, Jeju, South Korea
| | - A Kim
- Department of Advanced Convergence Technology & Science, Jeju National University, Jeju, South Korea
| | - S K Park
- Department of Parasitology, School of Medicine, Pusan National University, Yangsan, South Korea
| | - H S Yu
- Department of Parasitology, School of Medicine, Pusan National University, Yangsan, South Korea
| | - Y Jee
- Department of Veterinary Medicine and Institute for nuclear science & technology, Jeju National University, Jeju, South Korea.,Department of Advanced Convergence Technology & Science, Jeju National University, Jeju, South Korea
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Abstract
The Na–SrSiO3 is a mixture of lightly Na-doped SrSiO3 and amorphous Na2Si2O5.
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Affiliation(s)
- Youngseok Jee
- Department of Mechanical Engineering
- University of South Carolina
- Columbia
- USA
| | - Xuan Zhao
- Texas Materials Institute
- The University of Texas at Austin
- Austin
- USA
| | - Kevin Huang
- Department of Mechanical Engineering
- University of South Carolina
- Columbia
- USA
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Zhang Y, Wang H, Xu S, Mao N, Zhu Z, Shi J, Huang G, Liu C, Bo F, Feng D, Lu P, Liu Y, Wang Y, Lei Y, Chen M, Chen H, Wang C, Fu H, Li C, He J, Gao H, Gu S, Wang S, Ling H, Liu Y, Ding Z, Ba Z, Feng Y, Zheng H, Tang X, Lei Y, Xiong Y, Bellini W, Rota P, Jee Y, Xu W. Monitoring progress toward measles elimination by genetic diversity analysis of measles viruses in China 2009–2010. Clin Microbiol Infect 2014; 20:O566-77. [DOI: 10.1111/1469-0691.12530] [Citation(s) in RCA: 20] [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] [Received: 09/05/2013] [Revised: 12/28/2013] [Accepted: 12/30/2013] [Indexed: 02/06/2023]
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9
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Kim S, Kim S, Yoon H, Shin D, Park S, Kim Y, Park J, Jee Y. Lack Of Associations Between Tnf-α Genetic Polymorphism -308g/a And Anti-tuberculosis Drug-induced Maculopapular Eruption. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Kim Y, Jee Y, Gho Y, Kim Y. Metagenomic Analysis Of Bacteria And Bacteria-derived Nanovesicles Collected From Indoor Dust. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.931] [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: 11/28/2022]
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Jeong H, Lee K, Jeong AY, Jo M, Jung S, Ahn J, Jee Y, Kim J, Cheon DS. Genotypes of the circulating rotavirus strains in the seven prevaccine seasons from September 2000 to August 2007 in South Korea. Clin Microbiol Infect 2011; 17:232-5. [DOI: 10.1111/j.1469-0691.2010.03232.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kim S, Kim S, Moon J, Kim T, Sohn J, Yoon H, Shin D, Park S, Jee Y. Genetic Polymorphisms of NAT2, CYP2C9, CYP2C19, CYP2D6 and CYP2E1, and Antituberculosis Drugs Induced Maculopapular Eruption. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2010.01.012] [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: 11/28/2022]
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Jeon S, Kim Y, Tae Y, Choi J, Kang S, Hong S, Shin T, Jee Y, Kim Y. An Improtant Role of IL-17 in the Development of Non-eosinophilic Airway Inflammation induced by LPS-contaminated allergens. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Jee Y, Piao WH, Liu R, Bai XF, Rhodes S, Rodebaugh R, Campagnolo DI, Shi FD, Vollmer TL. CD4(+)CD25(+) regulatory T cells contribute to the therapeutic effects of glatiramer acetate in experimental autoimmune encephalomyelitis. Clin Immunol 2007; 125:34-42. [PMID: 17632037 DOI: 10.1016/j.clim.2007.05.020] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2007] [Revised: 05/24/2007] [Accepted: 05/26/2007] [Indexed: 11/28/2022]
Abstract
CD4(+)CD25(+) regulatory T cells (Tregs) are potent immunosuppressors that are pivotal in the maintenance of self-tolerance. The involvement of Tregs in therapies for immune-mediated diseases has been proposed, but direct supporting evidence is still lacking. While investigating mechanisms underlying the clinical benefits of glatiramer acetate (GA) in an animal model of multiple sclerosis (MS), i.e., experimental autoimmune encephalomyelitis (EAE), we recently demonstrated that GA can protect mice deficient in the Th(2) cytokines IL-4, IL-10 and IL-4/IL-10 from acquiring EAE, suggesting that mechanisms other than Th(2) cells may be responsible for the therapeutic effects of GA. Here we demonstrate that GA treatment boosts the expression of Foxp3 on Tregs during EAE. Furthermore, adoptive transfer of purified Tregs from GA-treated EAE mice is more effective in preventing EAE development than Tregs from untreated EAE controls. Thus, our current data provide evidence that Tregs may be the major contributor to GA's therapeutic action in EAE and, possibly, MS. Further mechanistic studies to reveal the molecular events linking GA with Tregs may optimize GA treatment and lead to the development of new, even more effective therapies that utilize this mechanism of action.
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Affiliation(s)
- Y Jee
- Barrow Neurological Institute, St Joseph's Hospital and Medical Center, Phoenix, AZ 85013, USA
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Kim SH, Yeo SG, Park KH, Bang JW, Kim HB, Kim NJ, Jee Y, Cho H, Oh MD, Choe KW. The persistence of humoral and cellular immunities more than three decades after smallpox vaccination. Clin Microbiol Infect 2007; 13:91-3. [PMID: 17184294 DOI: 10.1111/j.1469-0691.2006.01576.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study assessed the persistence of humoral (neutralising antibody titre to vaccinia virus) and cellular (immediate vaccinia-specific interferon (IFN)-gamma-producing T-cell) immunities to smallpox in a Korean population. Individuals who were vaccinated 25-60 years previously had higher neutralising antibody titres (geometric mean titre (GMT) 13.7; 95% CI 11.0-17.2) than vaccinia-naive individuals (GMT 6.7; 95% CI 5.5-8.0; p <0.001). However, there was no significant difference in cellular immunity between individuals vaccinated previously and vaccinia-naive individuals, and only 15% of the individuals vaccinated previously displayed an immediate IFN-gamma-producing effector-memory response in ELISPOT assays.
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Affiliation(s)
- S-H Kim
- Center for Infectious Diseases, National Institute of Health, Seoul, Republic of Korea
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Jee Y, Park J, Kim Y, Kim M, Cho Y, Lavender P. Funtional Role Of Glucocorticoid Receptor β In The Steroid-induced Suppression Of Il-8 In Airway Epithelial Cells. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kwon H, Ha M, Jee Y, Hong Y, Leem J, Sakong> J, Bae J, Hong S, Roh Y. The CHEER (Children’s Health and Environmental Research) Study: A Longitudinal Cohort Study on Children’s Environmental Health. Epidemiology 2006. [DOI: 10.1097/00001648-200611001-01080] [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: 11/25/2022]
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Ahn M, Kang J, Lee Y, Riu K, Kim Y, Jee Y, Matsumoto Y, Shin T. Pertussis toxin-induced hyperacute autoimmune encephalomyelitis in Lewis rats is correlated with increased expression of inducible nitric oxide synthase and tumor necrosis factor alpha. Neurosci Lett 2001; 308:41-4. [PMID: 11445281 DOI: 10.1016/s0304-3940(01)01979-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The involvement of inducible nitric oxide synthase (iNOS) and tumor necrosis factor alpha (TNF-alpha), which have diverse roles in the progression of autoimmune disease models, was studied in pertussis toxin (PT)-induced hyperacute experimental autoimmune encephalomyelitis (EAE) in Lewis rats. The expression of TNF-alpha mRNA (increased 5-fold, P<0.01) and iNOS protein (3-fold, P<0.01) was much greater in the spinal cords with PT(+) EAE at the peak stage of EAE than in those with PT(-) EAE, as shown by competitive PCR and Western blot analysis, respectively. Immunohistochemistry showed that the majority of ED1-positive macrophages in EAE lesions contained iNOS, and that there were many more iNOS-positive cells in the CNS lesions of PT(+) rats than in those of PT(-) rats. These findings suggest that PT-induced hyperacute EAE is partly mediated by the enhanced expression of iNOS and TNF-alpha in the early stages of rat EAE.
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Affiliation(s)
- M Ahn
- Department of Veterinary Medicine, Institute for Life Science, Brain Korea 21, SHRC, Cheju National University, 690-756, Jeju, South Korea
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Jee Y, Matsumoto Y. Two-step activation of T cells, clonal expansion and subsequent Th1 cytokine production, is essential for the development of clinical autoimmune encephalomyelitis. Eur J Immunol 2001; 31:1800-12. [PMID: 11385625 DOI: 10.1002/1521-4141(200106)31:6<1800::aid-immu1800>3.0.co;2-s] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Lewis rats immunized with guinea pig myelin basic protein (GPBP) emulsified with incomplete Freund's adjuvant (IFA) do not develop experimental autoimmune encephalomyelitis (EAE). However, we found that GPBP/IFA with pertussis toxin (PT) administration induced full-blown EAE. By comparing the immunological status of rats immunized with GPBP/IFA plus PT [PT (+) rats] with that of rats immunized with GPBP/IFA alone [PT (-) rats], we tried to elucidate the pathomechanisms of EAE. Analysis of the TCR clonality by CDR3 spectratyping revealed that Vbeta8.2 and Vbeta10 expansion of T cells occurred in both PT (-) and PT (+) rats, indicating that activation of T cells at this level is not sufficient for the development of clinical EAE. Quantitation of cytokine mRNA and protein revealed that PT (-) rats showed a Th2-dominant, while PT (+) rats showed a Th1-dominant, cytokine profile. Furthermore, administration of IL-12, but not of IFN-gamma and TNF-alpha, induced clinical EAE in GPBP/IFA-immunized animals. Taken together, two-step activation, activation of T cells bearing a particular type of TCR by antigen immunization and subsequent overproduction of Th1 cytokines, mainly IL-12 production, induced by appropriate adjuvants is essential for the development of clinical EAE.
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Affiliation(s)
- Y Jee
- Department of Molecular Neuropathology, Tokyo Metropolitan Institute for Neuroscience, Tokyo, Japan
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Abstract
Autoimmune inflammation in the central nervous system (CNS) is maintained by secretion of a large number of cytokines. To elucidate its molecular mechanisms, we examined the expression and localization of STAT1, STAT3, STAT4 and STAT6 molecules, which are the downstream molecules of the cytokine signal transduction pathway, in the CNS during acute experimental autoimmune encephalomyelitis (EAE) induced in Lewis rats. Western blot analysis demonstrated that STAT1 protein increased gradually till the recovery stage, whereas STAT4 protein showed abrupt increase at the early stage followed by gradual decrease. STAT3 and STAT6 showed stable expression throughout the course of the disease. The kinetics of the phosphorylated form of STAT1 and STAT4 roughly paralleled that of the total protein although the peak of STAT3 phosphorylation was recognized at the preclinical stage. Immunohistochemical examinations revealed that STAT3 and STAT4, but not STAT1 and STAT6, immunoreactivities were mainly expressed in astrocytes and microglia, respectively, and were closely associated with inflammatory lesions. Taken together, these findings suggest that STAT3 and STAT4 play an important role in the formation of, and recovery from, autoimmune inflammation in the CNS.
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Affiliation(s)
- Y Jee
- Department of Molecular Neuropathology, Tokyo Metropolitan Institute for Neuroscience, Fuchu, Tokyo, Japan
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21
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Matsumoto Y, Jee Y. Characterization of T cells that are activated after depletion of major encephalitogenic T cells in rat autoimmune encephalomyelitis. J Neuroimmunol 2001; 114:89-98. [PMID: 11240019 DOI: 10.1016/s0165-5728(00)00432-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
In rat experimental autoimmune encephalomyelitis (EAE), encephalitogenic T cells mainly use Vbeta8.2 of TCR, but it is not clear whether Vbeta8.2 is the sole encephalitogenic TCR. To address this issue, we examined the immunological status of Lewis rats that had been treated with anti-Vbeta8.2 mAb and immunized with myelin basic protein (MBP). It was demonstrated that rats in which the majority of Vbeta8.2+ T cells had been depleted developed clinical EAE and possessed newly expanded Vbeta10. Analysis of T cell lines established from these animals revealed that T line cells responded to a minor epitope in the MBP molecule. However, treatment with a mixture of anti-Vbeta8.2 and anti-Vbeta10 mAbs reduced the clinical severity of EAE but did not induce complete suppression of the disease due to new activation of Vbeta6. These findings suggest that rapid and frequent examination of the TCR repertoire is essential to identify pathogenic TCRs and to establish TCR-based immunotherapy for autoimmune diseases.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal/pharmacology
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/therapy
- Flow Cytometry
- Immunoglobulins/immunology
- Immunophenotyping
- Immunotherapy
- Lymphocyte Activation/immunology
- Molecular Sequence Data
- Myelin Basic Protein/chemistry
- Myelin Basic Protein/immunology
- Oligoclonal Bands
- Peptide Fragments/chemistry
- Peptide Fragments/immunology
- Peptide Fragments/metabolism
- Rats
- Rats, Inbred Lew
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
- Spinal Cord/cytology
- Spinal Cord/immunology
- T-Lymphocytes/immunology
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Affiliation(s)
- Y Matsumoto
- Department of Molecular Neuropathology, Tokyo Metropolitan Institute for Neuroscience, Tokyo 183-8526, Japan.
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22
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Moon C, Kim S, Wie M, Kim H, Cheong J, Park J, Jee Y, Tanuma N, Matsumoto Y, Shin T. Increased expression of p53 and Bax in the spinal cords of rats with experimental autoimmune encephalomyelitis. Neurosci Lett 2000; 289:41-4. [PMID: 10899404 DOI: 10.1016/s0304-3940(00)01253-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The expression of pro-apoptotic molecules p53 and Bax in the spinal cord of rats with experimental autoimmune encephalomyelitis (EAE) was examined. Apoptosis was confirmed by the terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) method. TUNEL (+) apoptotic cells were mainly either ED1 (+) macrophages or T-cells in the parenchyma of EAE. Western blot analysis showed that both p53 and Bax expression significantly (P<0. 01) increased in the spinal cords of EAE rats at the peak stage, and thereafter declined. An immunohistochemical study showed that inflammatory cells (notably T cells) in the parenchyma express p53 and Bax, while brain cells, including neurons and glia, were devoid of nuclear staining for these molecules. The nuclear expression of p53 largely matches apoptotic cells in the parenchyma of EAE. These findings suggest that the pro-apoptotic molecules p53 and Bax may play an important role in eliminating T cells in the parenchyma in EAE.
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Affiliation(s)
- C Moon
- Department of Veterinary Medicine, Cheju National University, 690-756, Cheju, South Korea
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23
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Arimoto H, Tanuma N, Jee Y, Miyazawa T, Shima K, Matsumoto Y. Analysis of experimental autoimmune encephalomyelitis induced in F344 rats by pertussis toxin administration. J Neuroimmunol 2000; 104:15-21. [PMID: 10683510 DOI: 10.1016/s0165-5728(99)00242-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To elucidate the factor(s) accelerating the autoimmune disease processes, we induced two types of experimental autoimmune encephalomyelitis (EAE), severe and very mild, in F344 rats by immunization with myelin basic protein (MBP) plus pertussis toxin (PT) (PT+) or with MBP alone (PT-) and compared the differences between the two. Immunohistochemical examinations showed that although the nature of inflammation was essentially the same between the two groups, the proportion of Vbeta8.2(+) T cells in the CNS lesion of PT (+) rats was larger than that of PT (-) rats. Cytokine analysis by competitive PCR revealed that IL-10 mRNA in the lymphoid organ was significantly suppressed in the PT(+) group, whereas levels of IFN-gamma,TNF-alpha and TGF-beta mRNA were insignificantly different after PT administration. In addition, T cells taken from PT (+) rats proliferated well in response to MBP, while those from PT (-) rats showed a marginal response to the same antigen. However, this finding does not indicate the switching of non-encephalitogenic to encephalitogenic T cells upon PT administration because PT (-) rats contained encephalitogenic T cells and/or their precursor cells as revealed by adoptive transfer experiments. Taken together, these findings suggest that suppression of IL-10 by PT administration is the major factor contributing to the exacerbation of EAE in PT(+) rats.
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Affiliation(s)
- H Arimoto
- Department of Molecular Neuropathology, Tokyo Metropolitan Institute for Neuroscience, Tokyo, Japan
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24
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Matsumoto Y, Jee Y, Sugisaki M. Successful TCR-based immunotherapy for autoimmune myocarditis with DNA vaccines after rapid identification of pathogenic TCR. J Immunol 2000; 164:2248-54. [PMID: 10657681 DOI: 10.4049/jimmunol.164.4.2248] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The identification of TCRs of autoimmune disease-inducing T cells within a short period of time is a key factor for designing TCR-based immunotherapy during the course of the disease. In this study, we show that experimental autoimmune carditis-associated TCRs, Vbeta8.2 and Vbeta10, were determined by complementarity-determining region 3 (CDR3)-spectratyping analysis and subsequent sequencing of the CDR3 region of spectratype-derived TCR clones. Immunotherapy targeting both Vbeta8.2 and Vbeta10 TCRs using mAbs and DNA vaccines significantly reduced the histological severity of experimental autoimmune carditis and completely suppressed the inflammation in some animals. Since depletion or suppression of one of two types of effector cells does not improve the severity of the disease significantly, combined TCR-based immunotherapy should be considered as a primary therapy for T cell-mediated autoimmune diseases. TCR-based immunotherapy after rapid identification of autoimmune disease-associated TCRs by CDR3 spectratyping can be applicable, not only to animal, but also to human autoimmune diseases whose pathomechanism is poorly understood.
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MESH Headings
- Amino Acid Sequence
- Animals
- Autoimmune Diseases/etiology
- Autoimmune Diseases/immunology
- Autoimmune Diseases/pathology
- Autoimmune Diseases/therapy
- Base Sequence
- Cell Movement/immunology
- Clone Cells
- Molecular Sequence Data
- Myocarditis/etiology
- Myocarditis/immunology
- Myocarditis/pathology
- Myocarditis/therapy
- Myocardium/chemistry
- Myocardium/pathology
- Myosins/administration & dosage
- Myosins/immunology
- Rats
- Rats, Inbred Lew
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Receptors, Antigen, T-Cell, alpha-beta/isolation & purification
- T-Lymphocytes/pathology
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/immunology
- Virulence Factors, Bordetella/administration & dosage
- Virulence Factors, Bordetella/immunology
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Affiliation(s)
- Y Matsumoto
- Department of Molecular Neuropathology, Tokyo Metropolitan Institute for Neuroscience, Fuchu, Tokyo, Japan.
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25
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Matsumoto Y, Jee Y, Sugisaki M, Kim G, Tanuma N. Fine T cell receptor repertoire analysis of spinal cord T cells responding to the major and minor epitopes of myelin basic protein during rat autoimmune encephalomyelitis. J Neurosci Res 2000; 59:145-52. [PMID: 10658195] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Experimental autoimmune encephalomyelitis is a disease induced by neuroantigen-reactive T cells bearing particular types of T cell receptor (TCR). Although the nature of TCRs of encephalitogenic T cells has been partially delineated using encephalitogenic T cell clones established in vitro, the entire TCR repertoire formed in situ after immunization with neuroantigen remains unclear. In the present study, we immunized Lewis rats with myelin basic protein (MBP) and its fragment peptides and determined the TCR repertoire of spinal cord T cells formed after the immunization by CDR3 spectra-typing. It was revealed that the oligoclonal expansion of Vbeta2, Vbeta8.2, and Vbeta17 spectratypes was detectable after immunization with guinea pig MBP and its immunodominant epitope, the 68-88 sequence, whereas immunization with a peptide containing a minor epitope induced Vbeta10 expansion. Immunization with rat MBP induced much broader TCR Vbeta expansion (all of the above Vbetas plus Vbeta3). These findings suggest that TCRs activated by immunization with guinea pig MBP used as heteroclitic immunogen recognize autoantigen, rat MBP. Furthermore, the strategy used in this study gives insight into the pathogenesis of autoimmune disease and provides useful information for designing TCR-based immunotherapy.
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Affiliation(s)
- Y Matsumoto
- Department of Molecular Neuropathology, Tokyo Metropolitan Institute for Neuroscience, Japan.
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