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Lee S, Ju J, Keum C, Bang J, Lee H, Vikneshvaran S, Yoo H, Park J, Lee SY. Enhanced Photocatalytic Oxygen Evolution Using Copper-Coordinated Perylene Diimide Nanorod Assemblies. ChemSusChem 2024; 17:e202301044. [PMID: 38030584 DOI: 10.1002/cssc.202301044] [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] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/27/2023] [Accepted: 11/28/2023] [Indexed: 12/01/2023]
Abstract
A crystalline supramolecular photocatalyst is prepared through metal-induced self-assembly of perylene diimide with imidazole groups at the imide position (PDI-Hm). Exploiting the metal-coordination ability of imidazole, a crystalline assembly of copper-coordinated PDI-Hm (CuPDI-Hm) in a nanorod shape is prepared which displays an outstanding photocatalytic oxygen evolution rate of 25,900 μmol g-1 h-1 without additional co-catalysts. The imidazole-copper coordination, along with π-π stacking of PDI frameworks, guides the arrangement of PDI-Hm molecules to form highly crystalline assemblies. The coordination of copper also modulates the size of the CuPDI-Hm supramolecular assembly by regulating the nucleation and growth processes. Furthermore, the imidazole-copper coordination constructs the electric field within the PDI-Hm assembly, hindering the recombination of photo-induced charges to enhance the photoelectric/photocatalytic activity when compared to Cu-free PDI-Hm assemblies. Small CuPDI-Hm assembly exhibits higher photocatalytic activity due to their larger surface area and reduced light scattering. Together, the Cu-imidazole coordination presents a facile way for fabricating size-controlled crystalline PDI assemblies with built-in electric field enhancing photoelectric and photocatalytic activities substantially.
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Affiliation(s)
- Sukjun Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 03722, Seoul, Republic of Korea
| | - Jeewon Ju
- Department of Chemical and Biomolecular Engineering, Yonsei University, 03722, Seoul, Republic of Korea
| | - Changjoon Keum
- Department of Chemical and Biomolecular Engineering, Yonsei University, 03722, Seoul, Republic of Korea
- Current affiliation: Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jieun Bang
- Department of Chemistry and Nanoscience, Ewha Womans University, 03760, Seoul, Republic of Korea
| | - Hyesung Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 03722, Seoul, Republic of Korea
| | - Sekar Vikneshvaran
- Department of Chemical and Biomolecular Engineering, Yonsei University, 03722, Seoul, Republic of Korea
- Department of Chemistry, Government Arts College, Paramakudi, 623701, Paramakudi, Tamil Nadu, India
| | - Hyeri Yoo
- Department of Chemical and Biomolecular Engineering, Yonsei University, 03722, Seoul, Republic of Korea
| | - JaeHong Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 03760, Seoul, Republic of Korea
| | - Sang-Yup Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 03722, Seoul, Republic of Korea
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Shin JC, Jeong JH, Kwon J, Kim YH, Kim B, Woo SJ, Woo KY, Cho M, Watanabe K, Taniguchi T, Kim YD, Cho YH, Lee TW, Hone J, Lee CH, Lee GH. Electrically Confined Electroluminescence of Neutral Excitons in WSe 2 Light-Emitting Transistors. Adv Mater 2024; 36:e2310498. [PMID: 38169481 DOI: 10.1002/adma.202310498] [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] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/29/2023] [Indexed: 01/05/2024]
Abstract
Monolayer transition metal dichalcogenides (TMDs) have drawn significant attention for their potential in optoelectronic applications due to their direct band gap and exceptional quantum yield. However, TMD-based light-emitting devices have shown low external quantum efficiencies as imbalanced free carrier injection often leads to the formation of non-radiative charged excitons, limiting practical applications. Here, electrically confined electroluminescence (EL) of neutral excitons in tungsten diselenide (WSe2) light-emitting transistors (LETs) based on the van der Waals heterostructure is demonstrated. The WSe2 channel is locally doped to simultaneously inject electrons and holes to the 1D region by a local graphene gate. At balanced concentrations of injected electrons and holes, the WSe2 LETs exhibit strong EL with a high external quantum efficiency (EQE) of ≈8.2 % at room temperature. These experimental and theoretical results consistently show that the enhanced EQE could be attributed to dominant exciton emission confined at the 1D region while expelling charged excitons from the active area by precise control of external electric fields. This work shows a promising approach to enhancing the EQE of 2D light-emitting transistors and modulating the recombination of exciton complexes for excitonic devices.
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Affiliation(s)
- June-Chul Shin
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jae Hwan Jeong
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Junyoung Kwon
- Department of Material Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yeon Ho Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Bumho Kim
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Seung-Je Woo
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kie Young Woo
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Minhyun Cho
- Department of Physics and Department of Information Display, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Kenji Watanabe
- Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - Takashi Taniguchi
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - Young Duck Kim
- Department of Physics and Department of Information Display, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Yong-Hoon Cho
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Tae-Woo Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - James Hone
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Chul-Ho Lee
- Department of Electrical and Computer Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Gwan-Hyoung Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
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3
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Choi ES, Kim S, Kim D, Choi E, Ryu JH. Drug-Loaded Nanogel for Efficient Orchestration of Cell Death Pathways by Intramitochondrial Disulfide Polymerization. Small 2024; 20:e2308872. [PMID: 37994300 DOI: 10.1002/smll.202308872] [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] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/08/2023] [Indexed: 11/24/2023]
Abstract
Chemotherapy using a nanoscaled drug delivery system is an effective cancer therapy, but its high drug concentration often causes drug resistance in cancer cells and normal cell damage. Combination therapy involving two or more different cell signaling pathways can be a powerful tool to overcome the limitations of chemotherapy. Herein, this article presents nanogel (NG)-mediated co-delivery of a chemodrug camptothecin (CPT) and mitochondria-targeting monomer (MT monomer) for efficient activation of two modes of the programmed cell death pathway (apoptosis and necroptosis) and synergistic enhancement of cancer therapy. CPT and the monomer are incorporated together into the redox-degradable polymeric NGs for release in response to the intracellular glutathione. The MT monomer is shown to undergo reactive oxygen species (ROS)-triggered disulfide polymerization inside the cancerous mitochondria in cooperation with the chemotherapeutic CPT elevating the intracellular ROS level. The CPT/monomer interconnection in cell death mechanisms for mitochondrial dysfunction and enhanced cell death is evidenced by a series of cell analyses showing ROS generation, mitochondria damage, impacts on (non)cancerous or drug-resistant cells, and cell death modes. The presented work provides beneficial insights for utilizing combination therapy to facilitate a desired cell death mechanism and developing a novel nanosystem for more efficacious cancer treatment.
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Affiliation(s)
- Eun Seong Choi
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Sangpil Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Dohyun Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Eunshil Choi
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Ja-Hyoung Ryu
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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Si M, Jee S, Yang M, Kim D, Ahn Y, Lee S, Kim C, Bae I, Baek S. Colloidal InAs Quantum Dot-Based Infrared Optoelectronics Enabled by Universal Dual-Ligand Passivation. Adv Sci (Weinh) 2024; 11:e2306798. [PMID: 38240455 PMCID: PMC10987160 DOI: 10.1002/advs.202306798] [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] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/06/2024] [Indexed: 04/04/2024]
Abstract
Solution-processed low-bandgap semiconductors are crucial to next-generation infrared (IR) detection for various applications, such as autonomous driving, virtual reality, recognitions, and quantum communications. In particular, III-V group colloidal quantum dots (CQDs) are interesting as nontoxic bandgap-tunable materials and suitable for IR absorbers; however, the device performance is still lower than that of Pb-based devices. Herein, a universal surface-passivation method of InAs CQDs enabled by intermediate phase transfer (IPT), a preliminary process that exchanges native ligands with aromatic ligands on the CQD surface is presented. IPT yields highly stable CQD ink. In particular, desirable surface ligands with various reactivities can be obtained by dispersing them in green solvents. Furthermore, CQD near-infrared (NIR) photodetectors are demonstrated using solution processes. Careful surface ligand control via IPT is revealed that enables the modulation of surface-mediated photomultiplication, resulting in a notable gain control up to ≈10 with a fast rise/fall response time (≈12/36 ns). Considering the figure of merit (FOM), EQE versus response time (or -3 dB bandwidth), the optimal CQD photodiode yields one of the highest FOMs among all previously reported solution-processed nontoxic semiconductors comprising organics, perovskites, and CQDs in the NIR wavelength range.
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Affiliation(s)
- Min‐Jae Si
- Department of Chemical and Biological EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Seungin Jee
- Department of Chemical and Biological EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Minjung Yang
- Department of Chemical and Biological EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Dongeon Kim
- Department of Chemical and Biological EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Yongnam Ahn
- Department of Chemical and Biological EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Seungjin Lee
- Department of Energy EngineeringKorea Institute of Energy Technology (KENTECH)Naju58330Republic of Korea
| | - Changjo Kim
- Nanotechnology and Advanced Spectroscopy Team, C‐PCS, Chemistry DivisionLos Alamos National LaboratoryLos AlamosNMUSA
| | - In‐Ho Bae
- Division of Physical MetrologyKorea Research Institute of Standards and ScienceDaejeon34113Republic of Korea
| | - Se‐Woong Baek
- Department of Chemical and Biological EngineeringKorea UniversitySeoul02841Republic of Korea
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Lee S, Moon H, Kim J, Ryu S, Park SM, Yoon DK. On-Demand Crack Formation on DNA Film via Organic Solvent-Induced Dehydration. Adv Mater 2024:e2314374. [PMID: 38490809 DOI: 10.1002/adma.202314374] [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] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/05/2024] [Indexed: 03/17/2024]
Abstract
Crack is found on the soil when severe drought comes, which inspires the idea to rationalize patterning applications using dried deoxyribonucleic acid (DNA) film. DNA is one of the massively produced biomaterials in nature, showing the lyotropic liquid crystal (LC) phase in highly concentrated conditions. DNA nanostructures in the hydrated condition can be orientation controlled, which can be extended to make dryinginduced cracks. The controlled crack generation in oriented DNA films by inducing mechanical fracture through organic solvent-induced dehydration (OSID) using tetrahydrofuran (THF) is explored. The corresponding simulations show a strong correlation between the long axis of DNA due to the shrinkage during the dehydration and in the direction of crack propagation. The cracks are controlled by simple brushing and a 3D printing method. This facile way of aligning cracks will be used in potential patterning applications.
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Affiliation(s)
- Soeun Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyeonbin Moon
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Juri Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seunghwa Ryu
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Soon Mo Park
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Cornell University, Ithaca, 14853, USA
| | - Dong Ki Yoon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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6
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Jeong S, Lee S. Retrogradation-induced physicochemical changes in pre-cooked rice noodles stored at different temperatures: a viewpoint from water dynamics and structure. J Sci Food Agric 2024; 104:2406-2416. [PMID: 37961837 DOI: 10.1002/jsfa.13125] [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] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/11/2023] [Accepted: 11/14/2023] [Indexed: 11/15/2023]
Abstract
BACKGROUND There has been significant interest in pre-cooked noodles that have a long shelf life and are convenient to cook. However, the thermal processes during preparation, and their high moisture content, can lead to significant quality deterioration during storage. Nevertheless, a comprehensive evaluation of these quality losses has not yet been conducted. RESULTS The effects of different storage temperatures (25, 4, and -20 °C) on the retrogradation-related physicochemical changes in pre-cooked rice noodles were elucidated mainly from the water dynamics and structural viewpoints. Thermal analysis demonstrated that amylopectin recrystallization took place in the noodles stored at refrigerated temperature, followed by room temperature. The refrigerated storage accelerated the starch retrogradation that caused the water molecules to become entrapped within the crystalline structure by lowering the water hydration properties and weighted T2 relaxation times of the pre-cooked noodles. These water mobility patterns were correlated with the textural changes in the noodles (greater hardness and Rmax /extensibility). Furthermore, the higher structural density and thickness derived from starch retrogradation were observed in the tomographic and microscopic images of the refrigerated noodles. The principal component analysis demonstrated that various physicochemical changes of the pre-cooked noodles during storage showed high correlations with the degree of starch retrogradation (r > 0.83). CONCLUSION The physicochemical features of the precooked noodles stored under refrigerated conditions were involved in the molecular dynamics of water, showing a notable water mobility reduction derived from the starch retrogradation, which contributed to their thermal, tomographical, and textural changes. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Sungmin Jeong
- Department of Food Science & Biotechnology and Carbohydrate Bioproduct Research Center, Sejong University, Seoul, Korea
| | - Suyong Lee
- Department of Food Science & Biotechnology and Carbohydrate Bioproduct Research Center, Sejong University, Seoul, Korea
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7
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Jeon W, Kim D. AbFlex: designing antibody complementarity determining regions with flexible CDR definition. Bioinformatics 2024; 40:btae122. [PMID: 38449295 DOI: 10.1093/bioinformatics/btae122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 02/04/2024] [Accepted: 03/05/2024] [Indexed: 03/08/2024] Open
Abstract
MOTIVATION Antibodies are proteins that the immune system produces in response to foreign pathogens. Designing antibodies that specifically bind to antigens is a key step in developing antibody therapeutics. The complementarity determining regions (CDRs) of the antibody are mainly responsible for binding to the target antigen, and therefore must be designed to recognize the antigen. RESULTS We develop an antibody design model, AbFlex, that exhibits state-of-the-art performance in terms of structure prediction accuracy and amino acid recovery rate. Furthermore, >38% of newly designed antibody models are estimated to have better binding energies for their antigens than wild types. The effectiveness of the model is attributed to two different strategies that are developed to overcome the difficulty associated with the scarcity of antibody-antigen complex structure data. One strategy is to use an equivariant graph neural network model that is more data-efficient. More importantly, a new data augmentation strategy based on the flexible definition of CDRs significantly increases the performance of the CDR prediction model. AVAILABILITY AND IMPLEMENTATION The source code and implementation are available at https://github.com/wsjeon92/AbFlex.
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Affiliation(s)
- Woosung Jeon
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dongsup Kim
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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Kim JW, Lee JH, Kim HJ, Heo K, Lee Y, Jang HJ, Lee HY, Park JW, Cho YB, Shin HG, Yang HR, Lee HE, Song JY, Lee S. Empowering SARS-CoV-2 variant neutralization with a bifunctional antibody engineered with tandem heptad repeat 2 peptides. J Med Virol 2024; 96:e29506. [PMID: 38445718 DOI: 10.1002/jmv.29506] [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: 11/17/2023] [Revised: 01/28/2024] [Accepted: 02/23/2024] [Indexed: 03/07/2024]
Abstract
With the global pandemic and the continuous mutations of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the need for effective and broadly neutralizing treatments has become increasingly urgent. This study introduces a novel strategy that targets two aspects simultaneously, using bifunctional antibodies to inhibit both the attachment of SARS-CoV-2 to host cell membranes and viral fusion. We developed pioneering IgG4-(HR2)4 bifunctional antibodies by creating immunoglobulin G4-based and phage display-derived human monoclonal antibodies (mAbs) that specifically bind to the SARS-CoV-2 receptor-binding domain, engineered with four heptad repeat 2 (HR2) peptides. Our in vitro experiments demonstrate the superior neutralization efficacy of these engineered antibodies against various SARS-CoV-2 variants, ranging from original SARS-CoV-2 strain to the recently emerged Omicron variants, as well as SARS-CoV, outperforming the parental mAb. Notably, intravenous monotherapy with the bifunctional antibody neutralizes a SARS-CoV-2 variant in a murine model without causing significant toxicity. In summary, this study unveils the significant potential of HR2 peptide-driven bifunctional antibodies as a potent and versatile strategy for mitigating SARS-CoV-2 infections. This approach offers a promising avenue for rapid development and management in the face of the continuously evolving SARS-CoV-2 variants, holding substantial promise for pandemic control.
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Affiliation(s)
- Ji Woong Kim
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
| | - Ji Hyun Lee
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
| | - Hyun Jung Kim
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
| | - Kyun Heo
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
- Department of Chemistry, Kookmin University, Seoul, Republic of Korea
- Antibody Research Institute, Kookmin University, Seoul, Republic of Korea
| | - Yoonwoo Lee
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seoul, Republic of Korea
| | - Hui Jeong Jang
- Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seoul, 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, Kangwon National University, Chuncheon, Republic of Korea
| | - Yea Bin Cho
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
| | - Ha Gyeong Shin
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
| | - Ha Rim Yang
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
| | - Hee Eon Lee
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
| | - Jin Young Song
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
| | - Sukmook Lee
- Department of Biopharmaceutical Chemistry, Kookmin University, Seoul, Republic of Korea
- Department of Chemistry, Kookmin University, Seoul, Republic of Korea
- Antibody Research Institute, Kookmin University, Seoul, Republic of Korea
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Kim S, Ge J, Kim D, Lee JJ, Choi YJ, Chen W, Bowman JW, Foo SS, Chang LC, Liang Q, Hara D, Choi I, Kim MH, Eoh H, Jung JU. TXNIP-mediated crosstalk between oxidative stress and glucose metabolism. PLoS One 2024; 19:e0292655. [PMID: 38329960 PMCID: PMC10852281 DOI: 10.1371/journal.pone.0292655] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 09/26/2023] [Indexed: 02/10/2024] Open
Abstract
Thioredoxin-interacting protein (TXNIP) has emerged as a key player in cancer and diabetes since it targets thioredoxin (TRX)-mediated redox regulation and glucose transporter (GLUT)-mediated metabolism. TXNIP consists of two arrestin (ARR, N-ARR and C-ARR) domains at its amino-terminus and two PPxY (PY) motifs and a di-leucine (LL) motif for endocytosis at its carboxyl-terminus. Here, we report that TXNIP shuffles between TRX and GLUTs to regulate homeostasis of intracellular oxidative stress and glucose metabolism. While TXNIP functions as a gatekeeper of TRX by default, it robustly interacted with class I GLUTs through its C-ARR domain upon increase of intracellular reactive oxygen species. This interaction prompted the surface expression downregulation and lysosomal degradation of GLUTs by its carboxyl-terminal LL endocytic signaling motif to attenuate glucose uptake. Consequently, TXNIP expression significantly limited glucose uptake, leading to the suppression of glycolysis, hexosamine biosynthesis, and the pentose phosphate pathway. Our findings establish a fundamental link between ROS and glucose metabolism through TXNIP and provide a promising target for the drug development against GLUT-related metabolic disorders.
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Affiliation(s)
- Stephanie Kim
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Department of Cancer Biology, Infection Biology Program, and Global Center for Pathogen and Human Health Research, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Jianning Ge
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Dokyun Kim
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Department of Cancer Biology, Infection Biology Program, and Global Center for Pathogen and Human Health Research, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Jae Jin Lee
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Youn Jung Choi
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Department of Cancer Biology, Infection Biology Program, and Global Center for Pathogen and Human Health Research, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Weiqiang Chen
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Department of Cancer Biology, Infection Biology Program, and Global Center for Pathogen and Human Health Research, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - James W. Bowman
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Suan-Sin Foo
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Department of Cancer Biology, Infection Biology Program, and Global Center for Pathogen and Human Health Research, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Lin-Chun Chang
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Qiming Liang
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Daiki Hara
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Inpyo Choi
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Myung Hee Kim
- Infection and Immunity Research Laboratory, Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Hyungjin Eoh
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Jae U. Jung
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Department of Cancer Biology, Infection Biology Program, and Global Center for Pathogen and Human Health Research, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
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10
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Kim M, Kim JY, Shin JH, Son J, Kang Y, Jeong S, Kim D, Kim K, Chun E, Lee K. The SARS-CoV-2 spike protein induces lung cancer migration and invasion in a TLR2-dependent manner. Cancer Commun (Lond) 2024; 44:273-277. [PMID: 37702496 PMCID: PMC10876188 DOI: 10.1002/cac2.12485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 09/14/2023] Open
Affiliation(s)
- Mi‐Jeong Kim
- Department of ImmunologySamsung Biomedical Research InstituteSungkyunkwan University School of MedicineSuwonRepublic of Korea
| | - Ji Young Kim
- Department of ImmunologySamsung Biomedical Research InstituteSungkyunkwan University School of MedicineSuwonRepublic of Korea
| | - Ji Hye Shin
- Department of ImmunologySamsung Biomedical Research InstituteSungkyunkwan University School of MedicineSuwonRepublic of Korea
| | - Juhee Son
- Department of ImmunologySamsung Biomedical Research InstituteSungkyunkwan University School of MedicineSuwonRepublic of Korea
| | - Yeeun Kang
- Department of ImmunologySamsung Biomedical Research InstituteSungkyunkwan University School of MedicineSuwonRepublic of Korea
| | - Soo‐Kyung Jeong
- Research and Development CenterCHA Vaccine InstituteSeongnam‐siRepublic of Korea
| | - Duk‐Hwan Kim
- Department of Molecular Cell BiologySungkyunkwan University School of MedicineSuwonRepublic of Korea
| | - Kyun‐Hwan Kim
- Department of Precision MedicineSungkyunkwan University School of MedicineSuwonRepublic of Korea
| | - Eunyoung Chun
- Research and Development CenterCHA Vaccine InstituteSeongnam‐siRepublic of Korea
| | - Ki‐Young Lee
- Department of ImmunologySamsung Biomedical Research InstituteSungkyunkwan University School of MedicineSuwonRepublic of Korea
- Department of Health Sciences and TechnologySamsung Advanced Institute for Health Sciences & TechnologySamsung Medical CenterSungkyunkwan UniversitySeoulRepublic of Korea
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11
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Seo DH, Jang J, Park D, Yoon Y, Choi YD, Jang G. PEP-ASSOCIATED PROTEIN 3 regulates rice tiller formation and grain yield by controlling chloroplast biogenesis. Plant Physiol 2024; 194:805-818. [PMID: 37819034 PMCID: PMC10828210 DOI: 10.1093/plphys/kiad536] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 08/15/2023] [Accepted: 09/14/2023] [Indexed: 10/13/2023]
Abstract
Plastid-encoded RNA polymerase (PEP) plays a pivotal role in chloroplast development by governing the transcription of chloroplast genes, and PEP-associated proteins (PAPs) modulate PEP transcriptional activity. Therefore, PAPs provide an intriguing target for those efforts to improve yield, by enhancing chloroplast development. In this study, we identified the rice (Oryza sativa) OsPAP3 gene and characterized its function in chloroplast development. OsPAP3 expression was light-dependent and leaf-specific, similar to the PEP-dependent chloroplast gene RUBISCO LARGE SUBUNIT (OsRbcL), and OsPAP3 protein localized to chloroplast nucleoids where PEP functions. Analysis of loss-of-function and gain-of-function mutants showed that the expression of OsPAP3 is tightly linked to chloroplast gene expression and chloroplast biogenesis in rice. Homozygous knockout mutants of OsPAP3 had fewer chloroplasts than wild type, whereas plants overexpressing OsPAP3 had more chloroplasts. Also, OsPAP3 knockout suppressed the PEP-dependent expression of chloroplast genes, but OsPAP3 overexpression increased their expression. These findings indicate that OsPAP3 regulates chloroplast biogenesis in rice by controlling the PEP-dependent expression of chloroplast genes. More importantly, data from 3 seasons of field cultivation revealed that the overexpression of OsPAP3 improves rice grain yield by approximately 25%, largely due to increased tiller formation. Collectively, these observations suggest that OsPAP3 regulates rice growth and productivity by promoting chloroplast development.
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Affiliation(s)
- Deok Hyun Seo
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jinwoo Jang
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Dongryeol Park
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Youngdae Yoon
- Department of Environmental Health Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Yang Do Choi
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Geupil Jang
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
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12
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Park JA, Kim D, Yang S, Kang JH, Kim JE, Huh KH, Lee SS, Yi WJ, Heo MS. Automatic detection of posterior superior alveolar artery in dental cone-beam CT images using a deeply supervised multi-scale 3D network. Dentomaxillofac Radiol 2024; 53:22-31. [PMID: 38214942 PMCID: PMC11003607 DOI: 10.1093/dmfr/twad002] [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: 07/24/2023] [Revised: 09/15/2023] [Accepted: 10/18/2023] [Indexed: 01/13/2024] Open
Abstract
OBJECTIVES This study aimed to develop a robust and accurate deep learning network for detecting the posterior superior alveolar artery (PSAA) in dental cone-beam CT (CBCT) images, focusing on the precise localization of the centre pixel as a critical centreline pixel. METHODS PSAA locations were manually labelled on dental CBCT data from 150 subjects. The left maxillary sinus images were horizontally flipped. In total, 300 datasets were created. Six different deep learning networks were trained, including 3D U-Net, deeply supervised 3D U-Net (3D U-Net DS), multi-scale deeply supervised 3D U-Net (3D U-Net MSDS), 3D Attention U-Net, 3D V-Net, and 3D Dense U-Net. The performance evaluation involved predicting the centre pixel of the PSAA. This was assessed using mean absolute error (MAE), mean radial error (MRE), and successful detection rate (SDR). RESULTS The 3D U-Net MSDS achieved the best prediction performance among the tested networks, with an MAE measurement of 0.696 ± 1.552 mm and MRE of 1.101 ± 2.270 mm. In comparison, the 3D U-Net showed the lowest performance. The 3D U-Net MSDS demonstrated a SDR of 95% within a 2 mm MAE. This was a significantly higher result than other networks that achieved a detection rate of over 80%. CONCLUSIONS This study presents a robust deep learning network for accurate PSAA detection in dental CBCT images, emphasizing precise centre pixel localization. The method achieves high accuracy in locating small vessels, such as the PSAA, and has the potential to enhance detection accuracy and efficiency, thus impacting oral and maxillofacial surgery planning and decision-making.
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Affiliation(s)
- Jae-An Park
- Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - DaEl Kim
- Interdisciplinary Program in Bioengineering, Graduate School of Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Su Yang
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Ju-Hee Kang
- Department of Oral and Maxillofacial Radiology, Seoul National University Dental Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Jo-Eun Kim
- Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Kyung-Hoe Huh
- Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Sam-Sun Lee
- Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Won-Jin Yi
- Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Min-Suk Heo
- Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
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Park R, Lee DH, Koh CS, Kwon YW, Chae SY, Kim CS, Jung HH, Jeong J, Hong SW. Laser-Assisted Structuring of Graphene Films with Biocompatible Liquid Crystal Polymer for Skin/Brain-Interfaced Electrodes. Adv Healthc Mater 2024; 13:e2301753. [PMID: 37820714 DOI: 10.1002/adhm.202301753] [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: 06/02/2023] [Revised: 10/09/2023] [Indexed: 10/13/2023]
Abstract
The work presented here introduces a facile strategy for the development of flexible and stretchable electrodes that harness the robust characteristics of carbon nanomaterials through laser processing techniques on a liquid crystal polymer (LCP) film. By utilizing LCP film as a biocompatible electronic substrate, control is demonstrated over the laser irradiation parameters to achieve efficient pattern generation and transfer printing processes, thereby yielding highly conductive laser-induced graphene (LIG) bioelectrodes. To enhance the resolution of the patterned LIG film, shadow masks are employed during laser scanning on the LCP film surface. This approach is compatible with surface-mounted device integration, enabling the circuit writing of LIG/LCP materials in a flexible format. Moreover, kirigami-inspired on-skin bioelectrodes are introduced that exhibit reasonable stretchability, enabling independent connections to healthcare hardware platforms for electrocardiogram (ECG) and electromyography (EMG) measurements. Additionally, a brain-interfaced LIG microelectrode array is proposed that combines mechanically compliant architectures with LCP encapsulation for stimulation and recording purposes, leveraging their advantageous structural features and superior electrochemical properties. This developed approach offers a cost-effective and scalable route for producing patterned arrays of laser-converted graphene as bioelectrodes. These bioelectrodes serve as ideal circuit-enabled flexible substrates with long-term reliability in the ionic environment of the human body.
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Affiliation(s)
- Rowoon Park
- Department of Optics and Mechatronics Engineering, Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Dong Hyeon Lee
- School of Mechanical Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Chin Su Koh
- Department of Neurosurgery, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
| | - Young Woo Kwon
- Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Seon Yeong Chae
- Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Chang-Seok Kim
- Department of Optics and Mechatronics Engineering, Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
- Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Hyun Ho Jung
- Department of Neurosurgery, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
| | - Joonsoo Jeong
- School of Biomedical Convergence Engineering, Department of Information Convergence Engineering, Pusan National University, Yangsan, 50612, Republic of Korea
| | - Suck Won Hong
- Department of Optics and Mechatronics Engineering, Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
- Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology, Pusan National University, Busan, 46241, Republic of Korea
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14
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Kim ES, Han JH, Olejar KJ, Park SH. Degeneration of oil bodies by rough endoplasmic reticulum -associated protein during seed germination in Cannabis sativa. AoB Plants 2023; 15:plad082. [PMID: 38094511 PMCID: PMC10718813 DOI: 10.1093/aobpla/plad082] [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] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 11/21/2023] [Indexed: 02/15/2024]
Abstract
Oil bodies serve as a vital energy source of embryos during germination and contribute to sustaining the initial growth of seedlings until photosynthesis initiation. Despite high stability in chemical properties, how oil bodies break down and go into the degradation process during germination is still unknown. This study provides a morphological understanding of the mobilization of stored compounds in the seed germination of Cannabis. The achenes of fibrous hemp cultivar (Cannabis sativa cv. 'Chungsam') were examined in this study using light microscopy, scanning electron microscopy and transmission electron microscopy. Oil bodies in Cannabis seeds appeared spherical and sporadically distributed in the cotyledonary cells. Protein bodies contained electron-dense globoid and heterogeneous protein matrices. During seed germination, rough endoplasmic reticulum (rER) and high electron-dense substances were present adjacent to the oil bodies. The border of the oil bodies became a dense cluster region and appeared as a sinuous outline. Later, irregular hyaline areas were distributed throughout oil bodies, showing the destabilized emulsification of oil bodies. Finally, the oil bodies lost their morphology and fused with each other. The storage proteins were concentrated in the centre of the protein body as a dense homogenous circular mass surrounded by a light heterogeneous area. Some storage proteins are considered emulsifying agents on the surface region of oil bodies, enabling them to remain stable and distinct within and outside cotyledon cells. At the early germination stage, rER appeared and dense substances aggregated adjacent to the oil bodies. Certain proteins were synthesized within the rER and then translocated into the oil bodies by crossing the half membrane of oil bodies. Our data suggest that rER-associated proteins function as enzymes to lyse the emulsifying proteins, thereby weakening the emulsifying agent on the surface of the oil bodies. This process plays a key role in the degeneration of oil bodies and induces coalescence during seed germination.
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Affiliation(s)
- Eun-Soo Kim
- Institute of Cannabis Research, Colorado State University-Pueblo, 2200 Bonforte Blvd. Pueblo, CO 81001-4901, USA
| | - Joon-Hee Han
- Institute of Biological Resources, Chuncheon Bioindustry Foundation, 32, Soyanggang-ro, Chuncheon-si, Gangwon-do 24232, Republic of Korea
| | - Kenneth J Olejar
- Department of Chemistry, Colorado State University-Pueblo, 2200 Bonforte Blvd. Pueblo, CO 81001-4901, USA
| | - Sang-Hyuck Park
- Institute of Cannabis Research, Colorado State University-Pueblo, 2200 Bonforte Blvd. Pueblo, CO 81001-4901, USA
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15
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Lee YH, Song WJ, Park JM, Sung G, Lee MG, Kim M, Park S, Lee JS, Kim M, Kim WS, Sun JY. Full-Color Generation via Phototunable Mono Ink for Fast and Elaborate Printings. Adv Mater 2023; 35:e2307165. [PMID: 37945054 DOI: 10.1002/adma.202307165] [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] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/23/2023] [Indexed: 11/12/2023]
Abstract
Unlike pigment-based colors, which are determined by their molecular structure, diverse colors can be expressed by a regular arrangement of nanomaterials. However, existing techniques for constructing such nanostructures have struggled to combine high precision and speed, resulting in a narrow gamut, and prolonged color fabrication time. Here, this work reports a phototunable mono ink that can generate a wide range of colors by controlling regularly arranged nanostructure. Core-shell growth controlled by polymerization time precisely regulates the distance between arranged particles at a nanometer-scale, enabling the generation of various colors. Moreover, the wide and thin arrangement induces constrained out-of-plane growth, thus facilitating the intricate color generation at the desired location via photopolymerization. Upon terminating polymerization by oxygen gas, the generated colors are readily fixed and kept stable. Utilizing programmed ultraviolet illumination, large-scale and high-resolution (≈1 µm) full-color printings are demonstrated at high speed (100 mm2 s-1 ).
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Affiliation(s)
- Yun Hyeok Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Won Jun Song
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jae-Man Park
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Gimin Sung
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Min-Gyu Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Miji Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sungeun Park
- Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Ju Sang Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Miyoung Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Wook Sung Kim
- Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Jeong-Yun Sun
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
- Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul, 08826, Republic of Korea
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16
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Choi M, You SJ, Jung J, Cho C, Lee Y, Kim C, Ha J, Lee H, Seol Y. On Encapsulated Dielectric Barrier Discharge Plasma Sources for Radar Cross Section Reduction in Mobile Environments. Sensors (Basel) 2023; 23:9170. [PMID: 38005554 PMCID: PMC10674522 DOI: 10.3390/s23229170] [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] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/05/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
This paper deals with the practical application of Radar Cross Section (RCS) reduction technology using plasma. Although various plasma application technologies for RCS reduction have been studied, there are still many issues to be addressed for practical implementation. In order to achieve actual application, the discharge should be sustained regardless of the external environment of the aircraft. It is also important to investigate the actual plasma parameters to determine the expected RCS reduction effect. Building upon previous studies that optimized the electrodes for RCS reduction, this study fabricates a Dielectric Barrier Discharge (DBD) source suitable for dynamic environments and verifies the power consumption during one cycle of plasma generation. The obtained results are expected to contribute to the optimization of DBD electrodes for plasma RCS reduction.
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Affiliation(s)
- Minsu Choi
- Department of Physics, Chungnam National University, Daejeon 34134, Republic of Korea; (M.C.); (S.-J.Y.)
| | - Shin-Jae You
- Department of Physics, Chungnam National University, Daejeon 34134, Republic of Korea; (M.C.); (S.-J.Y.)
- Institute of Quantum Systems (IQS), Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jinwoo Jung
- Department of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea; (J.J.); (C.C.); (Y.L.)
| | - Changseok Cho
- Department of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea; (J.J.); (C.C.); (Y.L.)
| | - Yongshik Lee
- Department of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea; (J.J.); (C.C.); (Y.L.)
| | - Cheonyoung Kim
- Agency for Defense Development (ADD), Daejeon 34186, Republic of Korea; (C.K.); (J.H.); (H.L.)
| | - Jungje Ha
- Agency for Defense Development (ADD), Daejeon 34186, Republic of Korea; (C.K.); (J.H.); (H.L.)
| | - Hyunsoo Lee
- Agency for Defense Development (ADD), Daejeon 34186, Republic of Korea; (C.K.); (J.H.); (H.L.)
| | - Youbin Seol
- Institute of Quantum Systems (IQS), Chungnam National University, Daejeon 34134, Republic of Korea
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17
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Han DY, Son HB, Han SH, Song CK, Jung J, Lee S, Choi SS, Song WJ, Park S. Hierarchical 3D Electrode Design with High Mass Loading Enabling High-Energy-Density Flexible Lithium-Ion Batteries. Small 2023; 19:e2305416. [PMID: 37528714 DOI: 10.1002/smll.202305416] [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] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/25/2023] [Indexed: 08/03/2023]
Abstract
Flexible lithium-ion batteries (LIBs) have attracted significant attention owing to their ever-increasing use in flexible and wearable electronic devices. However, the practical application of flexible LIBs in devices has been plagued by the challenge of simultaneously achieving high energy density and high flexibility. Herein, a hierarchical 3D electrode (H3DE) is introduced with high mass loading that can construct highly flexible LIBs with ultrahigh energy density. The H3DE features a bicontinuous structure and the active materials along with conductive agents are uniformly distributed on the 3D framework regardless of the active material type. The bicontinuous electrode/electrolyte integration enables a rapid ion/electron transport, thereby improving the redox kinetics and lowering the internal cell resistance. Moreover, the H3DE exhibits exceptional structural integrity and flexibility during repeated mechanical deformations. Benefiting from the remarkable physicochemical properties, pouch-type flexible LIBs using H3DE demonstrate stable cycling under various bending states, achieving a record-high energy density (438.6 Wh kg-1 and 20.4 mWh cm-2 ), and areal capacity (5.6 mAh cm-2 ), outperforming all previously reported flexible LIBs. This study provides a feasible solution for the preparation of high-energy-density flexible LIBs for various energy storage devices.
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Affiliation(s)
- Dong-Yeob Han
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Hye Bin Son
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Sang Hyun Han
- Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Chi Keung Song
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Jaeho Jung
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Sangyeop Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Su Seok Choi
- Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Woo-Jin Song
- Department of Organic Materials Engineering, Department of Chemical Engineering and Applied Chemistry, Department of Polymer Science and Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Soojin Park
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
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18
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Lee S, Choi G, Choi J, Kim Y, Kim HK. Effect of high-speed sintering on the marginal and internal fit of CAD/CAM-fabricated monolithic zirconia crowns. Sci Rep 2023; 13:17215. [PMID: 37821643 PMCID: PMC10567905 DOI: 10.1038/s41598-023-44587-5] [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: 06/27/2023] [Accepted: 10/10/2023] [Indexed: 10/13/2023] Open
Abstract
This study compared the marginal and internal fit of zirconia crowns fabricated using conventional and high-speed induction sintering. A typodont mandibular right first molar was prepared and 60 zirconia crowns were fabricated: 30 crowns using conventional sintering and 30 crowns using high-speed sintering. We presented a new evaluation methodology to measure the marginal and internal fit of restorations through digital scanning, aligning the two datasets, and measuring the distance between two arbitrary point sets of the datasets. For the marginal fit, we calculated the maximum values of the shortest distances between the marginal line of the prepared tooth and that of the crown. The calculated values ranged from 359 to 444 μm, with smaller values for the high-speed sintered crowns (P < 0.05). For the internal fit, we employed mesh sampling and computed the geodesic distances between the prepared tooth surface and the crown intaglio surface. The measured values ranged from 177 to 229 μm with smaller values for the high-speed sintered crowns, but no significant difference was found (P > 0.05). Based on our results, the high-speed sintering method can be considered a promising option for single-visit zirconia treatment in dental practice.
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Affiliation(s)
- Seulgi Lee
- Department of Dental Public Health, Graduate School of Clinical Dentistry, Ajou University, Suwon, Republic of Korea
| | | | | | | | - Hee-Kyung Kim
- Department of Prosthodontics, Institute of Oral Health Science, Ajou University School of Medicine, Suwon, Republic of Korea.
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19
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Lee DG, Kang J, Jung J, Kim T, Kim J, Lee H, Lee J, Won Y, Ryoo S. Comparison of the Standard E TB-Feron ELISA and QuantiFERON-TB Gold PLUS assays: the advantageous use of whole recombinant protein antigens for latent tuberculosis diagnosis. Lett Appl Microbiol 2023; 76:ovad116. [PMID: 37757456 DOI: 10.1093/lambio/ovad116] [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: 04/11/2023] [Revised: 08/08/2023] [Accepted: 09/22/2023] [Indexed: 09/29/2023]
Abstract
The laboratory diagnosis of latent tuberculosis is often performed using interferon-gamma release assays. Here, we compared two enzyme-linked immunosorbent assay-based interferon-gamma release assays, namely, the newly developed Standard E TB-Feron enzyme-linked immunosorbent assay (STFE) and the QuantiFERON-TB Gold PLUS assay (QFT-GP), using samples from 155 participants. The STFE is based on using whole EAST6 and CFP10 recombinant antigens for latent tuberculosis diagnosis. The participants were classified into four groups and screened using both assays per the manufacturers' instructions. Thereafter, two statistical analyses were conducted to compare the obtained results. First, the STFE results were compared with the QTF-GP results (used as the gold standard) to calculate the total concordance, sensitivity, and specificity of STFE. Second, positivity and negativity concordances were calculated to differentiate healthy participants from participants with tuberculosis. The STFE showed 97% and 94% sensitivity and specificity, respectively. Furthermore, its positivity and negativity concordances were 91% and 98%, respectively. These results indicate the coordinated clinical performance of STFE in detecting latent tuberculosis and its improved performance in targeting tuberculosis-infected participants. Based on the comparison of the latent tuberculosis diagnostic abilities of STFE and QFT-GP, we establish the suitability and superior performance of STFE as a diagnostic tool.
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Affiliation(s)
- Da-Gyum Lee
- Clinical Research Center, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
| | - Jihye Kang
- Clinical Research Center, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
| | - Jihee Jung
- Clinical Research Center, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
| | - Taeyoon Kim
- Clinical Research Center, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
| | - Jiyeon Kim
- Clinical Research Center, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
| | - Hyunjin Lee
- Laboratory Medicine, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
| | - Junghee Lee
- Laboratory Medicine, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
| | - Youngsub Won
- Laboratory Medicine, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
| | - Sungweon Ryoo
- Clinical Research Center, Masan National Tuberculosis Hospital, Masanhappo-gu, Changwon 51755, Republic of Korea
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20
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Han J, Lee J, Kim Y, Kim YB, Yun S, Lee S, Yu J, Lee KJ, Myung H, Choi Y. 3D Neuromorphic Hardware with Single Thin-Film Transistor Synapses Over Single Thin-Body Transistor Neurons by Monolithic Vertical Integration. Adv Sci (Weinh) 2023; 10:e2302380. [PMID: 37712147 PMCID: PMC10602577 DOI: 10.1002/advs.202302380] [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] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/24/2023] [Indexed: 09/16/2023]
Abstract
Neuromorphic hardware with a spiking neural network (SNN) can significantly enhance the energy efficiency for artificial intelligence (AI) functions owing to its event-driven and spatiotemporally sparse operations. However, an artificial neuron and synapse based on complex complementary metal-oxide-semiconductor (CMOS) circuits limit the scalability and energy efficiency of neuromorphic hardware. In this work, a neuromorphic module is demonstrated composed of synapses over neurons realized by monolithic vertical integration. The synapse at top is a single thin-film transistor (1TFT-synapse) made of poly-crystalline silicon film and the neuron at bottom is another single transistor (1T-neuron) made of single-crystalline silicon. Excimer laser annealing (ELA) is applied to activate dopants for the 1TFT-synapse at the top and rapid thermal annealing (RTA) is applied to do so for the 1T-neuron at the bottom. Internal electro-thermal annealing (ETA) via the generation of Joule heat is also used to enhance the endurance of the 1TFT-synapse without transferring heat to the 1T-neuron at the bottom. As neuromorphic vision sensing, classification of American Sign Language (ASL) is conducted with the fabricated neuromorphic module. Its classification accuracy on ASL is ≈92.3% even after 204 800 update pulses.
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Affiliation(s)
- Joon‐Kyu Han
- School of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Jung‐Woo Lee
- School of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
- SK Hynix Inc.Icheon17336Republic of Korea
| | - Yeeun Kim
- School of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Young Bin Kim
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Seong‐Yun Yun
- School of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Sang‐Won Lee
- School of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Ji‐Man Yu
- School of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Keon Jae Lee
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Hyun Myung
- School of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Yang‐Kyu Choi
- School of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
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21
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Kwon S, Ha JH, Kim DK, Kim YS, Lim CS, Chang H, Lee JP, Park J. Revisiting metformin therapy for the mitigation of diabetic foot ulcer in patients with diabetic kidney disease from real-world evidence. Int Wound J 2023; 21:e14370. [PMID: 37740678 PMCID: PMC10824619 DOI: 10.1111/iwj.14370] [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: 07/01/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/25/2023] Open
Abstract
Diabetic foot ulcer and diabetic kidney disease are diabetes-related chronic vascular complications that strongly correlate with high morbidity and mortality. Although metformin potentially confers a wound-healing advantage, no well-established clinical evidence supports the benefit of metformin for diabetic foot ulcer. Thus, this study investigated the effect of metformin on diabetic foot ulcer from a large diabetic kidney disease cohort for the first time. This retrospective cohort study enrolled 10 832 patients who visited the nephrology department more than twice at two South Korean tertiary-referral centers between 2001 and 2016. The primary outcome was diabetic foot ulcer events; secondary outcomes included hospitalization, amputation, a composite of amputation or vascular intervention, and Wagner Grade ≥ 3. Multivariate Cox analysis and propensity score matching (PSM) were used to balance baseline intergroup differences between metformin users and non-users. In total, 4748 patients were metformin users, and 6084 patients were metformin non-users. Over a follow-up period of 117.5 ± 66.9 months, the diabetic foot ulcer incidence was 5.2%. After PSM, metformin users showed a lower incidence of diabetic foot ulcer events than metformin non-users (adjusted hazard ratio 0.41; p < 0.001). In a sensitivity analysis of 563 patients with diabetic foot ulcer, metformin usage was associated with lower severity in all four secondary outcomes: hospitalization (adjusted hazard ratio 0.33; p < 0.001); amputation (adjusted hazard ratio 0.44; p = 0.001); composite of amputation or vascular intervention (adjusted hazard ratio 0.47; p < 0.001); and Wagner Grade ≥ 3 (adjusted hazard ratio 0.39; p < 0.001). In conclusion, metformin therapy in patients with diabetic kidney disease can lower diabetic foot ulcer incidence and progression.
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Affiliation(s)
- Soie Kwon
- Department of Internal MedicineChung‐Ang University Heuk‐Seok HospitalSeoulRepublic of Korea
- Department of Clinical Medical SciencesCollege of Medicine, Seoul National UniversitySeoulRepublic of Korea
| | - Jeong Hyun Ha
- Department of Plastic and Reconstructive SurgerySeoul National University HospitalSeoulRepublic of Korea
- Department of Plastic and Reconstructive SurgerySeoul National University Boramae Medical CenterSeoulRepublic of Korea
| | - Dong Ki Kim
- Department of Internal MedicineSeoul National University HospitalSeoulRepublic of Korea
- Department of Internal MedicineSeoul National University, College of MedicineSeoulRepublic of Korea
| | - Yon Su Kim
- Department of Internal MedicineSeoul National University HospitalSeoulRepublic of Korea
- Department of Internal MedicineSeoul National University, College of MedicineSeoulRepublic of Korea
| | - Chun Soo Lim
- Department of Internal MedicineSeoul National University, College of MedicineSeoulRepublic of Korea
- Department of Internal MedicineSeoul National University Boramae Medical CenterSeoulRepublic of Korea
| | - Hak Chang
- Department of Plastic and Reconstructive SurgerySeoul National University HospitalSeoulRepublic of Korea
- Department of Plastic and Reconstructive SurgerySeoul National University College of MedicineSeoulRepublic of Korea
| | - Jung Pyo Lee
- Department of Internal MedicineSeoul National University, College of MedicineSeoulRepublic of Korea
- Department of Internal MedicineSeoul National University Boramae Medical CenterSeoulRepublic of Korea
| | - Ji‐Ung Park
- Department of Plastic and Reconstructive SurgerySeoul National University Boramae Medical CenterSeoulRepublic of Korea
- Department of Plastic and Reconstructive SurgerySeoul National University College of MedicineSeoulRepublic of Korea
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22
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Choi SE, Lee SB, Pyo JY, Ahn SS, Song JJ, Park YB, Lim BJ, Lee SW. Renal histopathological predictors of end-stage kidney disease in ANCA-associated vasculitis with glomerulonephritis: a single-centre study in Korea. Sci Rep 2023; 13:14850. [PMID: 37684336 PMCID: PMC10491748 DOI: 10.1038/s41598-023-41811-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
This study investigated whether histopathological classification and histologic lesion scores could significantly and independently predict the progression to end-stage kidney disease (ESKD) in Korean patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis-glomerulonephritis (AAV-GN). This study included 113 patients with AAV-GN confirmed by kidney biopsy. The glomerular, tubulointerstitial, and vascular lesions were systematically assessed using a scoring system. The scoring system was adopted from the Banff scoring system but also the Oxford study and the revision of the ISN/RPS. For comparison, the scores were classified into two groups; the low, and the high, and the difference was investigated between ESKD and non-ESKD groups using Cox proportional analysis. At diagnosis, the median age was 59.0 years and 33.6% were males. Of 113 patients, 44.2% had ESKD progression during follow-up. There were significant differences in several kidney-, inflammation-, and AAV-pathogenesis-related variables between AAV-GN patients with ESKD and those without. The sclerotic class exhibited the worst renal prognosis among the four histopathological classes. Among histopathological features, high interstitial fibrosis, tubular atrophy and global glomerulitis scores were significantly associated with ESKD progression. Whereas multivariable Cox analysis revealed only a high global glomerulitis score which means global endocapillary hypercellularity in a larger number of glomeruli is an independent predictor of ESKD progression. Moreover, among clinical and histopathological features, a high global glomerulitis score could also predict ESKD progression in addition to serum blood urea nitrogen and creatinine. This study demonstrated the worst renal prognosis for the sclerotic class and first discovered that a high global glomerulitis score was an independent predictor of ESKD in patients with AAV-GN.
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Affiliation(s)
- Sung-Eun Choi
- Department of Pathology, CHA University, CHA Bundang Medical Center, Seongnam-si, Kyeonggi-do, Republic of Korea
| | - Soo Bin Lee
- Department of Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Yoon Pyo
- Division of Rheumatology Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Sung Soo Ahn
- Division of Rheumatology Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jason Jungsik Song
- Division of Rheumatology Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong-Beom Park
- Division of Rheumatology Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Beom Jin Lim
- Department of Pathology, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-ro, Gangnam-gu, Seoul, 06273, Republic of Korea.
| | - Sang-Won Lee
- Division of Rheumatology Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Park SM, Park G, Yoon DK. Paintable Physical Unclonable Functions using DNA. Adv Mater 2023; 35:e2302135. [PMID: 37145961 DOI: 10.1002/adma.202302135] [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] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/20/2023] [Indexed: 05/07/2023]
Abstract
Controversy over artwork's authenticity is ongoing despite numerous technologies for copyright protection. Artists should build their own ways to protect the authority, but these are still open to piracy. Here, a platform is proposed for developing anticounterfeiting labels based on physical unclonable functions (PUFs), in an artist-friendly manner, brushstrokes. Deoxyribonucleic acid (DNA), which is natural, biocompatible, and eco-friendly, can be applied as a paint that shows entropy-driven buckling instability of the liquid crystal phase. Brushed and wholly dried DNA exhibits line-shaped zig-zag textures with inherent randomness as a source of the PUF, and its primary performance and reliability are systematically examined. This breakthrough enables the utilization of these drawings in a wider range of applications.
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Affiliation(s)
- Soon Mo Park
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Geonhyeong Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Dong Ki Yoon
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
- KAIST Institute for NanoCentury, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
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24
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Park MW, Park SJ, Chung SG. Relationships Between Skeletal Muscle Mass, Lumbar Lordosis, and Chronic Low Back Pain in the Elderly. Neurospine 2023; 20:959-968. [PMID: 37798990 PMCID: PMC10562244 DOI: 10.14245/ns.2346494.247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/15/2023] [Accepted: 06/27/2023] [Indexed: 10/07/2023] Open
Abstract
OBJECTIVE Loss of skeletal muscle mass is known to be associated with multiple morbidities. However, there is a dearth of reports on its association with lumbar lordosis and musculoskeletal pain. The aim of this study was to delineate the cross-sectional relationship between loss of skeletal muscle mass, lumbar lordosis, and chronic low back pain (CLBP). METHODS A total of 721 medical records were reviewed, and data from 165 older subjects (over 65 years old; 81 men and 84 women) were retrospectively analyzed. Subjects were categorized into either the CLBP group (back pain for more than 6 months; 35 men and 36 women) or the control group (46 men and 48 women). The modified skeletal muscle mass index (MSMI, appendicular skeletal muscle mass [kg]/weight [kg] × 100), assessed by bioelectrical impedance analysis, and lumbar lordotic angle (LLA) were measured and compared between the CLBP group and the control group. The correlation between MSMI and LLA was investigated. RESULTS The LLA of men and women in the CLBP group was significantly lower than that of the control group (p < 0.05). The MSMI was decreased in the CLBP group compared to the control group (p < 0.05). For both sexes, positive correlations were observed between the MSMI and LLA. CONCLUSION A close cross-sectional relationship was observed between MSMI, LLA, and CLBP. This suggests a potential interaction between the reduction in skeletal muscle mass and altered lumbar spine sagittal alignment, which could lead to CLBP.
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Affiliation(s)
- Myung Woo Park
- Department of Rehabilitation Medicine, Chung-Ang University Hospital, Seoul, Korea
| | | | - Sun Gun Chung
- Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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25
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Lee YS, Cho YS. The congruency sequence effect of the Simon task in a cross-modality context. J Exp Psychol Hum Percept Perform 2023; 49:1221-1235. [PMID: 37410404 DOI: 10.1037/xhp0001145] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
One of the prime measures of cognitive control is the congruency sequence effect (CSE), which refers to a reduced congruency effect following incongruent trials compared to congruent trials. Some researchers have argued that the conflict resolution process exerts its effect at the level of whole task-set, whereas others have argued that the control process applies to parts of a task-set. The present study examined whether the sequential modulation of the congruency effect transfers across two tasks even when they are highly distinguished by different stimulus sensory modalities. Participants performed auditory horizontal and visual vertical Simon tasks by using unimanual aimed movements. The cross-task CSE was obtained between the auditory and visual Simon tasks when the target modality was easily predicted in Experiment 1 and when the auditory and visual tasks were further distinguished by different task-relevant stimulus dimensions in Experiment 2. The results were replicated in a task-switching context in Experiment 3. These results indicate that cognitive control exerts its effect at a level of a specific component of a task-set instead of the level of a whole task-set itself. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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26
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Wu J, Lee J, Jung JY, Hwang JH, Kim KS, Shin M, Lee H, Park SH. Less-Suture Vascular Anastomosis: Development of Alternative Protocols with Multifunctional Self-Wrapping, Transparent, Adhesive, and Elastic Biomaterials. Adv Mater 2023; 35:e2301098. [PMID: 37196994 DOI: 10.1002/adma.202301098] [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] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/04/2023] [Indexed: 05/19/2023]
Abstract
Blood vessel anastomosis by suture is a life-saving, yet time-consuming and labor-intensive operation. While suture-less alternatives utilizing clips or related devices are developed to address these shortcomings, suture anastomosis is still overwhelmingly used in most cases. In this study, practical "less-suture" strategies are proposed, rather than ideal "suture-less" methods, to reflect real-world clinical situations. In the case of rat artery (d = 0.64 mm) anastomosis, the less-suture anastomosis involves the application of thin, adhesive, transparent, and self-wrapping films to the site. This surprisingly reduces the number of stitches required from ten (without films) to four (with films), saving 27 min of operating time per vessel. Furthermore, the decreased number of stitches largely alleviates fibrosis-mediated wall-thickening. Thus, a less-suture strategy is particularly useful for anastomosis of multiple vessels in emergency conditions and small-diameter vessels.
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Affiliation(s)
- Jingxian Wu
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jaemeun Lee
- R&D Center for Advanced Pharmaceuticals & Evaluation, Korea Institute of Toxicology (KIT), Daejeon, 34114, Republic of Korea
| | - Joo Young Jung
- Orthopaedic Department, Seail Hospital, Busan, 48793, Republic of Korea
| | - Jeong Ho Hwang
- Animal Model Research Group, Korea Institute of Toxicology (KIT), Jeongeup, 56212, Republic of Korea
- Human and Environmental Toxicology, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Ki-Suk Kim
- R&D Center for Advanced Pharmaceuticals & Evaluation, Korea Institute of Toxicology (KIT), Daejeon, 34114, Republic of Korea
| | - Mikyung Shin
- Department of Biomedical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Haeshin Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Sun-Hyun Park
- R&D Center for Advanced Pharmaceuticals & Evaluation, Korea Institute of Toxicology (KIT), Daejeon, 34114, Republic of Korea
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Ju U, Wallraven C. Dynamic measurements of speed and risk perception during driving: Evidence of speed misestimation from continuous ratings and video analysis. PLoS One 2023; 18:e0291043. [PMID: 37656718 PMCID: PMC10473500 DOI: 10.1371/journal.pone.0291043] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/21/2023] [Indexed: 09/03/2023] Open
Abstract
Investigating the factors underlying perceived speed and risk is crucial to ensure safe driving. However, existing studies on this topic usually measure speed and risk perception indirectly after a driving session, which makes it difficult to trace dynamic effects and time points of potential misestimates. To address this problem, we developed and validated a novel continuous method for dynamically measuring risk and speed perceptions. To study the factors affecting risk and speed perception, we presented participants with videos captured on the same racing track from the same point of view but with different drivers who varied in their speed and risk profiles. During the experiment, participants used a joystick to continuously rate the subjectively perceived risk of driving in the first block and the perceived speed in the second block. Our analysis of these dynamic ratings indicates that risk and speed estimates were decoupled, with curves resulting in decreased speeds but increased risk ratings. However, a close distance to the car in front increased both speed and risk. Based on actual and estimated speed data, we found that overtaking cars on curves resulted in participants overestimating their own speed, whereas an increase in the distance to the car in front on a straight course led to underestimations of their own speed. Our results showcase the usefulness of dynamic rating profiles for in-depth investigations into situations that could result in drivers misjudging speed or risk and will thus help the development of more intelligent, human-centered driving assistance systems.
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Affiliation(s)
- Uijong Ju
- Department of Information Display, Kyung Hee University, Seoul, South Korea
| | - Christian Wallraven
- Department of Brain and Cognitive Engineering, Korea University, Seoul, South Korea
- Department of Artificial Intelligence, Korea University, Seoul, South Korea
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28
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Yang JH, Shin HH, Kim D, Ryu JH, Jin EJ. Adhesive ginsenoside compound K patches for cartilage tissue regeneration. Regen Biomater 2023; 10:rbad077. [PMID: 37750082 PMCID: PMC10518074 DOI: 10.1093/rb/rbad077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 07/26/2023] [Accepted: 08/20/2023] [Indexed: 09/27/2023] Open
Abstract
Biomaterial-based drug delivery systems have been developed to expedite cartilage regeneration; however, challenges related to drug recovery, validation, and efficient drug delivery remain. For instance, compound K (CK) is a major metabolite of ginsenosides that is known to protect against joint degeneration by inhibiting the production of inflammatory cytokines and the activation of immune cells. However, its effects on cartilage degradation and tissue regeneration remain unclear. Additionally, tissue-adhesive drug delivery depots that stably adhere to cartilage defects are required for CK delivery. In this study, CK-loaded adhesive patches were reported to seal cartilage defects and deliver CK to defect sites, preventing cartilage degradation and accelerating cartilage tissue regeneration. Adhesive patches are stable and suitable for application in surgical procedures under physiological conditions and show excellent adhesiveness to cartilage surfaces. In addition, there were no significant differences in the adhesive polymeric networks before and after CK loading. CK-loaded hydrocaffeic acid-conjugated chitosan patches significantly inhibited the stimulation of cartilage-degrading enzymes and apoptosis in osteoarthritic cartilage by releasing CK in cartilage defects. Additionally, the NFkB signaling pathway of released CK from the adhesive patches in the treatment of osteoarthritis is revealed. Thus, the CK-loaded adhesive patches are expected to significantly contribute to cartilage regeneration.
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Affiliation(s)
- Jun-Ho Yang
- Department of Biological Sciences, College of Health Sciences, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
| | - Hyun Ho Shin
- Department of Chemical Engineering, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
| | - Donghyeon Kim
- Department of Biological Sciences, College of Health Sciences, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
| | - Ji Hyun Ryu
- Department of Carbon Convergence Engineering, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
- Integrated Omics Institute, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
| | - Eun-Jung Jin
- Department of Biological Sciences, College of Health Sciences, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
- Integrated Omics Institute, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
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Kim M, Kim S, Yoo H. Nanoscale Channel Gate-Tunable Diodes Obtained by Asymmetric Contact and Adhesion Lithography on Fluoropolymers. Small 2023; 19:e2208144. [PMID: 37096940 DOI: 10.1002/smll.202208144] [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] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 04/03/2023] [Indexed: 05/03/2023]
Abstract
Adhesion lithography offers to fabrication of coplanar asymmetric nanogap electrodes with a low-cost and facile process. In this study, a gate-tunable diode with coplanar asymmetric nanogap is fabricated using adhesion lithography. A fluoropolymer material is introduced to the adhesion lithography process to ensure a manufacturing patterning process yield as high as 96.7%. The asymmetric electrodes formed a built-in potential, leading to rectifying behavior. The coplanar electrode structure allowed the use of a gate electrode in vertical contact with the channel, resulting in gate-tunable diode characteristics. The nanoscale channel induced a high current density (3.38 × 10-7 A∙cm-1 ), providing a high rectification ratio (1.67 × 105 A∙A-1 ). This rectifier diode is confirmed to operate with pulsed input signals and suggests the gate-tunability of nanogap diodes.
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Affiliation(s)
- Minseo Kim
- Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam, 13120, South Korea
| | - Seongjae Kim
- Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam, 13120, South Korea
| | - Hocheon Yoo
- Department of Electronic Engineering, Gachon University, 1342 Seongnam-daero, Seongnam, 13120, South Korea
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30
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Iqbal A, Kim H, Oh JM, Chae J, Kim J, Kim M, Hassan T, Gao Z, Lee J, Kim SJ, Kim D, Gogotsi Y, Kwon H, Koo CM. Effect of Substitutional Oxygen on Properties of Ti 3 C 2 T x MXene Produced Using Recycled TiO 2 Source. Small Methods 2023; 7:e2201715. [PMID: 36855195 DOI: 10.1002/smtd.202201715] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/30/2023] [Indexed: 06/18/2023]
Abstract
MXenes are an emerging class of 2D materials with unique properties including metallic conductivity, mechanical flexibility, and surface tunability, which ensure their utility for diverse applications. However, the synthesis of MXenes with high crystallinity and atomic stoichiometry in a low-cost process is still challenging because of the difficulty in controlling the oxygen substitute in the precursors and final products of MXenes, which limits their academic understanding and practical applications. Here, a novel cost-effective method is reported to synthesize a highly crystalline and stoichiometric Ti3 C2 Tx MXene with minimum substitutional oxygen impurities by controlling the amount of excess carbon and time of high-energy milling in carbothermal reduction of recycled TiO2 source. The highest used content (2 wt%) of excess-carbon yields TiC with the highest carbon content and minimal oxygen substitutes, which leads to the Ti3 AlC2 MAX phase with improved crystallinity and atomic stoichiometry, and finally Ti3 C2 Tx MXene with the highest electrical conductivity (11738 S cm-1 ) and superior electromagnetic shielding effectiveness. Additionally, the effects of carbon content and substitutional oxygen on the physical properties of TiC and Ti3 AlC2 are elucidated by density-functional-theory calculations. This inexpensive TiO2 -based method of synthesizing high-quality Ti3 C2 Tx MXene can facilitate large-scale production and thus accelerate global research on MXenes.
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Affiliation(s)
- Aamir Iqbal
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon-si, Gyeonggi-do, 16419, Republic of Korea
| | - Hyerim Kim
- Materials Architecturing Research Centre, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Jung-Min Oh
- R&D center, INNOMXENE Co., Ltd., Daejeon, 34365, Republic of Korea
| | - Jikwang Chae
- R&D center, INNOMXENE Co., Ltd., Daejeon, 34365, Republic of Korea
| | - Jiwoong Kim
- Department of Organic Materials and Fiber Engineering, Soongsil University, Seoul, 06978, Republic of Korea
| | - Myungjae Kim
- Department of Organic Materials and Fiber Engineering, Soongsil University, Seoul, 06978, Republic of Korea
| | - Tufail Hassan
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon-si, Gyeonggi-do, 16419, Republic of Korea
| | - Zhenguo Gao
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon-si, Gyeonggi-do, 16419, Republic of Korea
| | - Juyun Lee
- Materials Architecturing Research Centre, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Seon Joon Kim
- Materials Architecturing Research Centre, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Daesin Kim
- Materials Architecturing Research Centre, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Yury Gogotsi
- Department of Materials Science and Engineering and A. J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA, 19104, USA
| | - Hanjung Kwon
- Division of Advanced Materials Engineering, College of Engineering, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Chong Min Koo
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon-si, Gyeonggi-do, 16419, Republic of Korea
- Materials Architecturing Research Centre, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Suwon-si, Gyeonggi-do, 16419, Republic of Korea
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31
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Kang JH, Jang M, Seo SJ, Choi A, Shin D, Seo S, Lee SH, Kim HN. Mechanobiological Adaptation to Hyperosmolarity Enhances Barrier Function in Human Vascular Microphysiological System. Adv Sci (Weinh) 2023; 10:e2206384. [PMID: 36808839 PMCID: PMC10161024 DOI: 10.1002/advs.202206384] [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] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/27/2023] [Indexed: 05/06/2023]
Abstract
In infectious disease such as sepsis and COVID-19, blood vessel leakage treatment is critical to prevent fatal progression into multi-organ failure and ultimately death, but the existing effective therapeutic modalities that improve vascular barrier function are limited. Here, this study reports that osmolarity modulation can significantly improve vascular barrier function, even in an inflammatory condition. 3D human vascular microphysiological systems and automated permeability quantification processes for high-throughput analysis of vascular barrier function are utilized. Vascular barrier function is enhanced by >7-folds with 24-48 h hyperosmotic exposure (time window of emergency care; >500 mOsm L-1 ) but is disrupted after hypo-osmotic exposure (<200 mOsm L-1 ). By integrating genetic and protein level analysis, it is shown that hyperosmolarity upregulates vascular endothelial-cadherin, cortical F-actin, and cell-cell junction tension, indicating that hyperosmotic adaptation mechanically stabilizes the vascular barrier. Importantly, improved vascular barrier function following hyperosmotic exposure is maintained even after chronic exposure to proinflammatory cytokines and iso-osmotic recovery via Yes-associated protein signaling pathways. This study suggests that osmolarity modulation may be a unique therapeutic strategy to proactively prevent infectious disease progression into severe stages via vascular barrier function protection.
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Affiliation(s)
- Joon Ho Kang
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Minjeong Jang
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Su Jin Seo
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Chemical Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Andrew Choi
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Daeeun Shin
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Suyoung Seo
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Soo Hyun Lee
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology (UST), Seoul, 02792, Republic of Korea
| | - Hong Nam Kim
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology (UST), Seoul, 02792, Republic of Korea
- School of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Yonsei-KIST Convergence Research Institute, Yonsei University, Seoul, 03722, Republic of Korea
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32
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Ryu I, Choe G, Kwon H, Hong D, Yim S. Overcoming the Trade-Off between Optical Transmittance and Areal Capacitance of Transparent Supercapacitors for Practical Application. Small 2023; 19:e2207270. [PMID: 36785493 DOI: 10.1002/smll.202207270] [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] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/17/2023] [Indexed: 05/18/2023]
Abstract
It is substantially challenging for transition metal oxide nanoparticle (NP)-based electrodes for supercapacitors to achieve high transparency and large capacity simultaneously due to the inherent trade-off between optical transmittance (T) and areal capacitance (CA ). This study demonstrates how this trade-off limitation can be overcome by replacing some electrode NPs with transparent tin oxide (SnO2 ) NPs. Although SnO2 NPs are non-capacitive, they provide effective paths for charge transport, which simultaneously increase the CA and T550nm of the manganese oxide (Mn3 O4 ) NP electrode from 11.7 to 13.4 mF cm-2 and 82.1% to 87.4%, respectively, when 25 wt% of Mn3 O4 are replaced by SnO2 . The obtained CA values at a given T are higher than those of the transparent electrodes previously reported. An energy storage window fabricated using the mixed-NP electrodes exhibits the highest energy density among transparent supercapacitors previously reported. The improved energy density enables the window to operate various electronic devices for a considerable amount of time, demonstrating its applicability in constructing a reliable and space-efficient building-integrated power supply system.
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Affiliation(s)
- Ilhwan Ryu
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
| | - Geunpyo Choe
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
| | - Hyemin Kwon
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
| | - Dajung Hong
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
| | - Sanggyu Yim
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
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33
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Ji D, Lee Y, Nishina Y, Kamiya K, Daiyan R, Chu D, Wen X, Yoshimura M, Kumar P, Andreeva DV, Novoselov KS, Lee GH, Joshi R, Foller T. Angstrom-Confined Electrochemical Synthesis of Sub-Unit-Cell Non-Van Der Waals 2D Metal Oxides. Adv Mater 2023:e2301506. [PMID: 37116867 DOI: 10.1002/adma.202301506] [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] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/12/2023] [Indexed: 06/19/2023]
Abstract
Bottom-up electrochemical synthesis of atomically thin materials is desirable yet challenging, especially for non-vanderWaals (non-vdW) materials. Thicknesses below a few nanometers have not been reported yet, posing the question how thin can non-vdW materials be electrochemically synthesized. This is important as materials with (sub-)unit-cell thickness often show remarkably different properties compared to their bulk form or thin films of several nanometers thickness. Here, a straightforward electrochemical method utilizing the angstrom-confinement of laminar reduced graphene oxide (rGO) nanochannels is introduced to obtain a centimeter-scale network of atomically thin (<4.3 Å) 2D-transition metal oxides (2D-TMO). The angstrom-confinement provides a thickness limitation, forcing sub-unit-cell growth of 2D-TMO with oxygen and metal vacancies. It is showcased that Cr2 O3 , a material without significant catalytic activity for the oxygen evolution reaction (OER) in bulk form, can be activated as a high-performing catalyst if synthesized in the 2D sub-unit-cell form. This method displays the high activity of sub-unit-cell form while retaining the stability of bulk form, promising to yield unexplored fundamental science and applications. It is shown that while retaining the advantages of bottom-up electrochemical synthesis, like simplicity, high yield, and mild conditions, the thickness of TMO can be limited to sub-unit-cell dimensions.
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Affiliation(s)
- Dali Ji
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yunah Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Korea
| | - Yuta Nishina
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Kazuhide Kamiya
- Research Center for Solar Energy Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Rahman Daiyan
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Dewei Chu
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Xinyue Wen
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Masamichi Yoshimura
- Graduate School of Engineering, Toyota Technological Institute, Nagoya, 468-8511, Japan
| | - Priyank Kumar
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Daria V Andreeva
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117575, Singapore
| | - Kostya S Novoselov
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117575, Singapore
| | - Gwan-Hyoung Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Korea
| | - Rakesh Joshi
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Tobias Foller
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
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Ansari A, Son D, Hur YM, Park S, You YA, Kim SM, Lee G, Kang S, Chung Y, Lim S, Kim YJ. Lactobacillus Probiotics Improve Vaginal Dysbiosis in Asymptomatic Women. Nutrients 2023; 15:nu15081862. [PMID: 37111086 PMCID: PMC10143682 DOI: 10.3390/nu15081862] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Vaginal dysbiosis can lead to serious infections in asymptomatic women. Lactobacillus probiotics (LBPs) are being investigated as a promising therapy for reversing vaginal microbiota dysbiosis. This study aimed to investigate whether administering LBPs could improve vaginal dysbiosis and facilitate the colonization of Lactobacillus species in asymptomatic women. 36 asymptomatic women were classified based on the Nugent score as Low-NS (n = 26) and High-NS (n = 10) groups. A combination of Lactobacillus acidophilus CBT LA1, Lactobacillus rhamnosus CBT LR5, and Lactobacillus reuteri CBT LU4 was administered orally for 6 weeks. The study found that among women with a High-NS, 60% showed improved vaginal dysbiosis with a Low-NS after LBP intake, while four retained a High-NS. Among women with a Low-NS, 11.5 % switched to a High-NS. Genera associated with vaginal dysbiosis were positively correlated with the alpha diversity or NS, while a negative correlation was observed between Lactobacillus and the alpha diversity and with the NS. Vaginal dysbiosis in asymptomatic women with an HNS improved after 6 weeks of LBP intake, and qRT-PCR revealed the colonization of Lactobacillus spp. in the vagina. These results suggested that oral administration of this LBP could improve vaginal health in asymptomatic women with an HNS.
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Affiliation(s)
- AbuZar Ansari
- Department of Obstetrics and Gynecology and Ewha Medical Research Institute, College of Medicine, Ewha Womans University, Seoul 07984, Republic of Korea
- Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 07984, Republic of Korea
| | - Dooheon Son
- R&D Center, Cell Biotech Co., Ltd., Gimpo 10003, Republic of Korea
| | - Young Min Hur
- Department of Obstetrics and Gynecology and Ewha Medical Research Institute, College of Medicine, Ewha Womans University, Seoul 07984, Republic of Korea
| | - Sunwha Park
- Department of Obstetrics and Gynecology and Ewha Medical Research Institute, College of Medicine, Ewha Womans University, Seoul 07984, Republic of Korea
| | - Young-Ah You
- Department of Obstetrics and Gynecology and Ewha Medical Research Institute, College of Medicine, Ewha Womans University, Seoul 07984, Republic of Korea
| | - Soo Min Kim
- Department of Obstetrics and Gynecology and Ewha Medical Research Institute, College of Medicine, Ewha Womans University, Seoul 07984, Republic of Korea
- Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 07984, Republic of Korea
| | - Gain Lee
- Department of Obstetrics and Gynecology and Ewha Medical Research Institute, College of Medicine, Ewha Womans University, Seoul 07984, Republic of Korea
- Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 07984, Republic of Korea
| | - Seungbeom Kang
- R&D Center, Cell Biotech Co., Ltd., Gimpo 10003, Republic of Korea
| | - Yusook Chung
- R&D Center, Cell Biotech Co., Ltd., Gimpo 10003, Republic of Korea
| | - Sanghyun Lim
- R&D Center, Cell Biotech Co., Ltd., Gimpo 10003, Republic of Korea
| | - Young Ju Kim
- Department of Obstetrics and Gynecology and Ewha Medical Research Institute, College of Medicine, Ewha Womans University, Seoul 07984, Republic of Korea
- Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 07984, Republic of Korea
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35
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Kim DH, Choi BR, Jin IB, Jeon JA, Park SP, Han JS. Chemogenetic activation of lateral habenula accelerates the extinction of the appetitive conditioned responses. Behav Neurosci 2023; 137:95-100. [PMID: 36757972 DOI: 10.1037/bne0000553] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
A previous study reported lateral habenula (LHb) lesions decelerated appetitive extinction. Therefore, we examined whether LHb activation accelerated appetitive extinction. In this study, rats received appetitive Pavlovian conditioning, pairing a conditioned stimulus (CS, light) with an unconditioned stimulus (food pellets), followed by CS-alone presentations. Chemogenetic LHb activation accelerated the decline in conditioned food-cup responses during extinction. The present results and the reports of previous LHb lesion studies suggest that LHb mediates appetitive extinction. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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36
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Min S, Kim DH, Joe DJ, Kim BW, Jung YH, Lee JH, Lee BY, Doh I, An J, Youn YN, Joung B, Yoo CD, Ahn HS, Lee KJ. Clinical Validation of a Wearable Piezoelectric Blood-Pressure Sensor for Continuous Health Monitoring. Adv Mater 2023:e2301627. [PMID: 36960816 DOI: 10.1002/adma.202301627] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/16/2023] [Indexed: 05/12/2023]
Abstract
Wearable blood-pressure sensors have recently attracted attention as healthcare devices for continuous non-invasive arterial pressure (CNAP) monitoring. However, the accuracy of wearable blood-pressure (BP) monitoring devices has been controversial due to the low signal quality of sensors, the absence of an accurate transfer function to convert the sensor signals into BP values, and the lack of clinical validation regarding measurement precision. Here, a wearable piezoelectric blood-pressure sensor (WPBPS) is reported, which achieves a high normalized sensitivity (0.062 kPa-1 ), and fast response time (23 ms) for CNAP monitoring. The transfer function of a linear regression model is designed, offering a simple solution to convert the flexible piezoelectric sensor signals into BP values. In order to verify the measurement accuracy of WPBPS, clinical trials are performed on 35 subjects aged from 20 to 80 s after screening. The mean difference between the WPBPS and a commercial sphygmomanometer of 175 BP data pairs is -0.89 ± 6.19 and -0.32 ± 5.28 mmHg for systolic blood pressure (SBP) and diastolic blood pressure (DBP), respectively. By building a WPBPS-embedded wristwatch, the potentially promising use of a convenient, portable, continuous BP monitoring system for cardiovascular disease diagnosis is demonstrated.
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Affiliation(s)
- Seongwook Min
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Dong Hyun Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Daniel J Joe
- Safety Measurement Institute, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Byung Woo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Young Hoon Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jae Hee Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Bo-Yeon Lee
- Department of Nature-Inspired System and Application, Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, Republic of Korea
| | - Il Doh
- Safety Measurement Institute, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Jaehun An
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Young-Nam Youn
- Division of Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University, College of Medicine, Yonsei University Health System, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Boyoung Joung
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Chang D Yoo
- Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyo-Suk Ahn
- Department of Internal Medicine, Division of Cardiology, Uijeongbu St Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea
| | - Keon Jae Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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37
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Park HJ, Gámez-Arjona FM, Lindahl M, Aman R, Villalta I, Cha JY, Carranco R, Lim CJ, García E, Bressan RA, Lee SY, Valverde F, Sánchez-Rodríguez C, Pardo JM, Kim WY, Quintero FJ, Yun DJ. S-acylated and nucleus-localized SALT OVERLY SENSITIVE3/CALCINEURIN B-LIKE4 stabilizes GIGANTEA to regulate Arabidopsis flowering time under salt stress. Plant Cell 2023; 35:298-317. [PMID: 36135824 PMCID: PMC9806564 DOI: 10.1093/plcell/koac289] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 09/16/2022] [Indexed: 05/15/2023]
Abstract
The precise timing of flowering in adverse environments is critical for plants to secure reproductive success. We report a mechanism in Arabidopsis (Arabidopsis thaliana) controlling the time of flowering by which the S-acylation-dependent nuclear import of the protein SALT OVERLY SENSITIVE3/CALCINEURIN B-LIKE4 (SOS3/CBL4), a Ca2+-signaling intermediary in the plant response to salinity, results in the selective stabilization of the flowering time regulator GIGANTEA inside the nucleus under salt stress, while degradation of GIGANTEA in the cytosol releases the protein kinase SOS2 to achieve salt tolerance. S-acylation of SOS3 was critical for its nuclear localization and the promotion of flowering, but partly dispensable for salt tolerance. SOS3 interacted with the photoperiodic flowering components GIGANTEA and FLAVIN-BINDING, KELCH REPEAT, F-BOX1 and participated in the transcriptional complex that regulates CONSTANS to sustain the transcription of CO and FLOWERING LOCUS T under salinity. Thus, the SOS3 protein acts as a Ca2+- and S-acylation-dependent versatile regulator that fine-tunes flowering time in a saline environment through the shared spatial separation and selective stabilization of GIGANTEA, thereby connecting two signaling networks to co-regulate the stress response and the time of flowering.
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Affiliation(s)
| | | | - Marika Lindahl
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | - Rashid Aman
- Division of Applied Life Science (BK21plus Program), Research Institute of Life Sciences, Plant Molecular Biology and Biotechnology Research Center, Graduate School of Gyeongsang National University, Jinju 52828, South Korea
| | - Irene Villalta
- Institut de Recherche sur la Biologie de l’Insecte, Université de Tours, 37200 Tours, France
| | - Joon-Yung Cha
- Division of Applied Life Science (BK21plus Program), Research Institute of Life Sciences, Plant Molecular Biology and Biotechnology Research Center, Graduate School of Gyeongsang National University, Jinju 52828, South Korea
| | - Raul Carranco
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | - Chae Jin Lim
- Department of Biomedical Science and Engineering, Konkuk University, Seoul 05029, South Korea
| | - Elena García
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | - Ray A Bressan
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana 47907, USA
| | - Sang Yeol Lee
- Division of Applied Life Science (BK21plus Program), Research Institute of Life Sciences, Plant Molecular Biology and Biotechnology Research Center, Graduate School of Gyeongsang National University, Jinju 52828, South Korea
| | - Federico Valverde
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | | | - Jose M Pardo
- Institute of Plant Biochemistry and Photosynthesis, Consejo Superior de Investigaciones Cientificas and Universidad de Sevilla, Seville 41092, Spain
| | - Woe-Yeon Kim
- Author for correspondence: (D.-J.Y.); (F.J.Q.); (W.-Y.K.)
| | | | - Dae-Jin Yun
- Author for correspondence: (D.-J.Y.); (F.J.Q.); (W.-Y.K.)
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38
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Kim JY, Jung CW, Lee WS, Jeong HJ, Park MJ, Jang WI, Kim EH. Emodin coupled with high LET neutron beam-a novel approach to treat on glioblastoma. J Radiat Res 2022; 63:817-827. [PMID: 36253116 PMCID: PMC9726713 DOI: 10.1093/jrr/rrac061] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/05/2022] [Accepted: 08/24/2022] [Indexed: 06/16/2023]
Abstract
The primary motivation of this investigative study is trying to find an alternative treatment that can be used to slow down or treat glioblastoma due to the witnessed toxic side effects of the current drugs coupled with limited effectiveness in overall treatment. Consequently, a Chinese plant extract emodin proves to play a critical role in this investigative study since results from the Western blot and the other accompanying assays for anti-cancer effects indicate that it cannot work a lot to suppress cell migration and possible invasion, but rather emodin can be combined with radiation to give desired outcomes. Our result shows that the kind of radiation which acts well with emodin is neutron radiation rather than gamma radiation. Emodin significantly enhanced the radiosensitivity of LN18 and LN428 cells to γ-rays through MTT assay and cell counting. Accordingly, exposure to neutron radiation in the presence of emodin induced apoptotic cell death and autophagic cell death to a significantly higher extent, and suppressed cell migration and invasiveness more robustly. These effects are presumably due to the ability of emodin to amplify the effective dose from neutron radiation more efficiently. Thus, the study below is one such trial towards new interventional discovery and development in relation to glioblastoma treatment.
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Affiliation(s)
| | | | | | - Hyeon-Jeong Jeong
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea
- School of Biomedical Science, Korea University, 145 Anam-ro Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Myung-Jin Park
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea
| | - Won Il Jang
- Corresponding author. Eun Ho Kim, Department of Biochemistry, School of Medicine, Daegu Catholic University, 33 17gil, Duryugongwon-ro, Nam-gu, Daegu, Korea. Tel: 82536504480; E-mail address: . Won Il Jang, Department of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea. Tel: 8229704480; E-mail address:
| | - Eun Ho Kim
- Corresponding author. Eun Ho Kim, Department of Biochemistry, School of Medicine, Daegu Catholic University, 33 17gil, Duryugongwon-ro, Nam-gu, Daegu, Korea. Tel: 82536504480; E-mail address: . Won Il Jang, Department of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea. Tel: 8229704480; E-mail address:
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39
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Kanmani P, Kim H. Probiotics counteract the expression of hepatic profibrotic genes via the attenuation of TGF-β/SMAD signaling and autophagy in hepatic stellate cells. PLoS One 2022; 17:e0262767. [PMID: 35051234 PMCID: PMC8775563 DOI: 10.1371/journal.pone.0262767] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 01/04/2022] [Indexed: 12/19/2022] Open
Abstract
Hepatic fibrosis is caused by the increased accumulation and improper degradation of extracellular matrix (ECM) proteins in the liver. Hepatic stellate cells (HSCs) activation is a key process in initiating hepatic fibrosis and can be ameliorated by the administration of probiotic strains. This study hypothesized that LAB strains (Lactiplantibacillus plantarum, Lactobacillus brevis, and Weissella cibaria) might attenuate pro-fibrogenic cytokine TGF-β mediated HSCs activation and induce collagen deposition, expression of other fibrogenic/inflammatory markers, autophagy, and apoptotic processes in vitro. Few studies have evaluated the probiotic effects against fibrogenesis in vitro. In this study, TGF-β exposure increased collagen deposition in LX-2 cells, but this increase was diminished when the cells were pretreated with LAB strains before TGF-β stimulation. TGF-β not only increased collagen deposition, but it also significantly upregulated the mRNA levels of Col1A1, alpha-smooth muscle actin (α-SMA), matrix metalloproteinases-2 (MMP-2), IL-6, CXCL-8, CCL2, and IL-1β in LX-2 cells. Pretreatment of the cells with LAB strains counteracted the TGF-β-induced pro-fibrogenic and inflammatory markers by modulating SMAD-dependent and SMAD-independent TGF-β signaling. In addition, LX-2 cells exposed to TGF-β induced the autophagic and apoptotic associated proteins that were also positively regulated by the LAB strains. These findings suggest that LAB can attenuate TGF-β signaling that is associated with liver fibrogenesis.
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Affiliation(s)
- Paulraj Kanmani
- Department of Korean Medicine, Dongguk University, Goyang, Republic of Korea
- Department of Medicine, University of Illinois, Chicago, Illinois, United States of America
| | - Hojun Kim
- Department of Korean Medicine, Dongguk University, Goyang, Republic of Korea
- * E-mail:
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David LC, Lee SK, Bruderer E, Abt MR, Fischer-Stettler M, Tschopp MA, Solhaug EM, Sanchez K, Zeeman SC. BETA-AMYLASE9 is a plastidial nonenzymatic regulator of leaf starch degradation. Plant Physiol 2022; 188:191-207. [PMID: 34662400 PMCID: PMC8774843 DOI: 10.1093/plphys/kiab468] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/28/2021] [Indexed: 06/13/2023]
Abstract
β-Amylases (BAMs) are key enzymes of transitory starch degradation in chloroplasts, a process that buffers the availability of photosynthetically fixed carbon over the diel cycle to maintain energy levels and plant growth at night. However, during vascular plant evolution, the BAM gene family diversified, giving rise to isoforms with different compartmentation and biological activities. Here, we characterized BETA-AMYLASE 9 (BAM9) of Arabidopsis (Arabidopsis thaliana). Among the BAMs, BAM9 is most closely related to BAM4 but is more widely conserved in plants. BAM9 and BAM4 share features including their plastidial localization and lack of measurable α-1,4-glucan hydrolyzing capacity. BAM4 is a regulator of starch degradation, and bam4 mutants display a starch-excess phenotype. Although bam9 single mutants resemble the wild-type (WT), genetic experiments reveal that the loss of BAM9 markedly enhances the starch-excess phenotypes of mutants already impaired in starch degradation. Thus, BAM9 also regulates starch breakdown, but in a different way. Interestingly, BAM9 gene expression is responsive to several environmental changes, while that of BAM4 is not. Furthermore, overexpression of BAM9 in the WT reduced leaf starch content, but overexpression in bam4 failed to complement fully that mutant's starch-excess phenotype, suggesting that BAM9 and BAM4 are not redundant. We propose that BAM9 activates starch degradation, helping to manage carbohydrate availability in response to fluctuations in environmental conditions. As such, BAM9 represents an interesting gene target to explore in crop species.
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Affiliation(s)
- Laure C David
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
| | - Sang-Kyu Lee
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
| | - Eduard Bruderer
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
| | - Melanie R Abt
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
| | - Michaela Fischer-Stettler
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
| | - Marie-Aude Tschopp
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
| | - Erik M Solhaug
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
| | - Katarzyna Sanchez
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
| | - Samuel C Zeeman
- Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich CH-8092, Switzerland
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Yang MH, Ha IJ, Lee SG, Um JY, Ahn KS. Abrogation of STAT3 activation cascade by Ginkgolide C mitigates tumourigenesis in lung cancer preclinical model. J Pharm Pharmacol 2021; 73:1630-1642. [PMID: 34559878 DOI: 10.1093/jpp/rgab114] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 07/23/2021] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Ginkgolide C (GGC) isolated from Ginkgo biloba (Ginkgoaceae) leaf can demonstrate pleiotropic pharmacological actions. However, its anti-oncogenic impact in non-small cell lung cancer (NSCLC) model has not been reconnoitered. As signal transducer and activator of transcription 3 (STAT3) cascade can promote tumour growth and survival, we contemplated that GGC may interrupt this signalling cascade to expend its anti-cancer actions in NSCLC. METHODS The effect of GGC on STAT3 activation, associated protein kinases, STAT3-regulated gene products, cellular proliferation and apoptosis was examined. The in-vivo effect of GGC on the growth of human NSCLC xenograft tumours in athymic nu/nu female mice was also investigated. KEY FINDINGS GGC attenuated the phosphorylation of STAT3 and STAT3 upstream kinases effectively. Exposure to pervanadate modulated GGC-induced down-regulation of STAT3 activation and promoted an elevation in the level of PTPε protein. Indeed, silencing of the PTPε gene reversed the GGC-promoted abrogation of STAT3 activation and apoptosis. Moreover, GGC exposure significantly reduced NSCLC tumour growth without demonstrating significant adverse effects via decreasing levels of p-STAT3 in mice tissues. CONCLUSIONS Overall, the findings support that GGC may exhibit anti-neoplastic actions by mitigation of STAT3 signalling cascade in NSCLC.
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Affiliation(s)
- Min Hee Yang
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea
- Department of Science in Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - In Jin Ha
- Korean Medicine Clinical Trial Center (K-CTC), Korean Medicine Hospital, Kyung Hee University, Seoul, Republic of Korea
| | - Seok-Geun Lee
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea
- Korean Medicine Clinical Trial Center (K-CTC), Korean Medicine Hospital, Kyung Hee University, Seoul, Republic of Korea
| | - Jae-Young Um
- Department of Science in Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Kwang Seok Ahn
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea
- Department of Science in Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
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Seo DH, Jeong H, Choi YD, Jang G. Auxin controls the division of root endodermal cells. Plant Physiol 2021; 187:1577-1586. [PMID: 34618030 PMCID: PMC8566267 DOI: 10.1093/plphys/kiab341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 06/28/2021] [Indexed: 06/02/2023]
Abstract
The root endodermis forms a selective barrier that prevents the free diffusion of solutes into the vasculature; to make this barrier, endodermal cells deposit hydrophobic compounds in their cell walls, forming the Casparian strip. Here, we showed that, in contrast to vascular and epidermal root cells, endodermal root cells do not divide alongside the root apical meristem in Arabidopsis thaliana. Auxin treatment induced division of endodermal cells in wild-type plants, but not in the auxin signaling mutant auxin resistant3-1. Endodermis-specific activation of auxin responses by expression of truncated AUXIN-RESPONSIVE FACTOR5 (ΔARF5) in root endodermal cells under the control of the ENDODERMIS7 promoter (EN7::ΔARF5) also induced endodermal cell division. We used an auxin transport inhibitor to cause accumulation of auxin in endodermal cells, which induced endodermal cell division. In addition, knockout of P-GLYCOPROTEIN1 (PGP1) and PGP19, which mediate centripetal auxin flow, promoted the division of endodermal cells. Together, these findings reveal a tight link between the endodermal auxin response and endodermal cell division, suggesting that auxin is a key regulator controlling the division of root endodermal cells, and that PGP1 and PGP19 are involved in regulating endodermal cell division.
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Affiliation(s)
- Deok Hyun Seo
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Haewon Jeong
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Yang Do Choi
- The National Academy of Sciences, Seoul 06579, Republic of Korea
| | - Geupil Jang
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea
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Heo S, Ha J, Son SJ, Choi IS, Lee H, Oh S, Jekal J, Kang MH, Lee GJ, Jung HH, Yea J, Lee T, Lee Y, Choi JW, Xu S, Choi JH, Jeong JW, Song YM, Rah JC, Keum H, Jang KI. Instant, multiscale dry transfer printing by atomic diffusion control at heterogeneous interfaces. Sci Adv 2021; 7:eabh0040. [PMID: 34244149 PMCID: PMC8270493 DOI: 10.1126/sciadv.abh0040] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/27/2021] [Indexed: 05/09/2023]
Abstract
Transfer printing is a technique that integrates heterogeneous materials by readily retrieving functional elements from a grown substrate and subsequently printing them onto a specific target site. These strategies are broadly exploited to construct heterogeneously integrated electronic devices. A typical wet transfer printing method exhibits limitations related to unwanted displacement and shape distortion of the device due to uncontrollable fluid movement and slow chemical diffusion. In this study, a dry transfer printing technique that allows reliable and instant release of devices by exploiting the thermal expansion mismatch between adjacent materials is demonstrated, and computational studies are conducted to investigate the fundamental mechanisms of the dry transfer printing process. Extensive exemplary demonstrations of multiscale, sequential wet-dry, circuit-level, and biological topography-based transfer printing demonstrate the potential of this technique for many other emerging applications in modern electronics that have not been achieved through conventional wet transfer printing over the past few decades.
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Affiliation(s)
- Seungkyoung Heo
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
| | - Jeongdae Ha
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
| | - Sook Jin Son
- Korea Brain Research Institute, Daegu 41062, South Korea
| | - In Sun Choi
- Korea Brain Research Institute, Daegu 41062, South Korea
| | - Hyeokjun Lee
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
| | - Saehyuck Oh
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
| | - Janghwan Jekal
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
| | - Min Hyung Kang
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, South Korea
| | - Gil Ju Lee
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, South Korea
| | - Han Hee Jung
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
| | - Junwoo Yea
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
| | - Taeyoon Lee
- Department of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, South Korea
| | - Youngjeon Lee
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Chungcheongbuk-do 28116, South Korea
| | - Ji-Woong Choi
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
| | - Sheng Xu
- Department of Nanoengineering, University of California San Diego, La Jolla, CA 92093-0448, USA
| | - Joon Ho Choi
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Korea Brain Research Institute, Daegu 41062, South Korea
| | - Jae-Woong Jeong
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea
| | - Young Min Song
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, South Korea
| | - Jong-Cheol Rah
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea.
- Korea Brain Research Institute, Daegu 41062, South Korea
| | - Hohyun Keum
- Korea Institute of Industrial Technology, Cheonan, 31056 South Korea.
| | - Kyung-In Jang
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea.
- Brain Engineering Convergence Research Center, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, South Korea
- Korea Brain Research Institute, Daegu 41062, South Korea
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Kim MJ, Lee SR, Song KH, Baek HM, Choe BY, Suh TS. Development of a hybrid magnetic resonance/computed tomography-compatible phantom for magnetic resonance guided radiotherapy. J Radiat Res 2020; 61:314-324. [PMID: 32030420 PMCID: PMC7246062 DOI: 10.1093/jrr/rrz094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 05/12/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
The purpose of the present study was to develop a hybrid magnetic resonance/computed tomography (MR/CT)-compatible phantom and tissue-equivalent materials for each MR and CT image. Therefore, the essential requirements necessary for the development of a hybrid MR/CT-compatible phantom were determined and the development process is described. A total of 12 different tissue-equivalent materials for each MR and CT image were developed from chemical components. The uniformity of each sample was calculated. The developed phantom was designed to use 14 plugs that contained various tissue-equivalent materials. Measurement using the developed phantom was performed using a 3.0-T scanner with 32 channels and a Somatom Sensation 64. The maximum percentage difference of the signal intensity (SI) value on MR images after adding K2CO3 was 3.31%. Additionally, the uniformity of each tissue was evaluated by calculating the percent image uniformity (%PIU) of the MR image, which was 82.18 ±1.87% with 83% acceptance, and the average circular-shaped regions of interest (ROIs) on CT images for all samples were within ±5 Hounsfield units (HU). Also, dosimetric evaluation was performed. The percentage differences of each tissue-equivalent sample for average dose ranged from -0.76 to 0.21%. A hybrid MR/CT-compatible phantom for MR and CT was investigated as the first trial in this field of radiation oncology and medical physics.
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Affiliation(s)
- Min-Joo Kim
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Yonsei University Health System, Seoul, 120-752, Korea
- Department of Biomedical Engineering, Research Institute of Biomedical Engineering, The Catholic University of Korea College of Medicine, Seoul, 137-701, Korea
| | - Seu-Ran Lee
- Department of Biomedical Engineering, Research Institute of Biomedical Engineering, The Catholic University of Korea College of Medicine, Seoul, 137-701, Korea
| | - Kyu-Ho Song
- Department of Radiology, Washington University, Saint Louis, Missouri, 63130, United States
| | - Hyeon-Man Baek
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, 21999, Korea
| | - Bo-Young Choe
- Department of Biomedical Engineering, Research Institute of Biomedical Engineering, The Catholic University of Korea College of Medicine, Seoul, 137-701, Korea
| | - Tae Suk Suh
- Department of Biomedical Engineering, Research Institute of Biomedical Engineering, The Catholic University of Korea College of Medicine, Seoul, 137-701, Korea
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Betancourt LH, Szasz AM, Kuras M, Rodriguez Murillo J, Sugihara Y, Pla I, Horvath Z, Pawłowski K, Rezeli M, Miharada K, Gil J, Eriksson J, Appelqvist R, Miliotis T, Baldetorp B, Ingvar C, Olsson H, Lundgren L, Horvatovich P, Welinder C, Wieslander E, Kwon HJ, Malm J, Nemeth IB, Jönsson G, Fenyö D, Sanchez A, Marko-Varga G. The Hidden Story of Heterogeneous B-raf V600E Mutation Quantitative Protein Expression in Metastatic Melanoma-Association with Clinical Outcome and Tumor Phenotypes. Cancers (Basel) 2019; 11:E1981. [PMID: 31835364 PMCID: PMC6966659 DOI: 10.3390/cancers11121981] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/23/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023] Open
Abstract
In comparison to other human cancer types, malignant melanoma exhibits the greatest amount of heterogeneity. After DNA-based detection of the BRAF V600E mutation in melanoma patients, targeted inhibitor treatment is the current recommendation. This approach, however, does not take the abundance of the therapeutic target, i.e., the B-raf V600E protein, into consideration. As shown by immunohistochemistry, the protein expression profiles of metastatic melanomas clearly reveal the existence of inter- and intra-tumor variability. Nevertheless, the technique is only semi-quantitative. To quantitate the mutant protein there is a fundamental need for more precise techniques that are aimed at defining the currently non-existent link between the levels of the target protein and subsequent drug efficacy. Using cutting-edge mass spectrometry combined with DNA and mRNA sequencing, the mutated B-raf protein within metastatic tumors was quantitated for the first time. B-raf V600E protein analysis revealed a subjacent layer of heterogeneity for mutation-positive metastatic melanomas. These were characterized into two distinct groups with different tumor morphologies, protein profiles and patient clinical outcomes. This study provides evidence that a higher level of expression in the mutated protein is associated with a more aggressive tumor progression. Our study design, comprised of surgical isolation of tumors, histopathological characterization, tissue biobanking, and protein analysis, may enable the eventual delineation of patient responders/non-responders and subsequent therapy for malignant melanoma.
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Affiliation(s)
- Lazaro Hiram Betancourt
- Clinical Protein Science & Imaging, Biomedical Centre, Department of Biomedical, Engineering, Lund University, BMC D13, 221 84 Lund, Sweden; (L.H.B.); (Z.H.); (M.R.); (J.G.); (J.E.); (R.A.); (G.M.-V.)
| | - A. Marcell Szasz
- Clinical Protein Science & Imaging, Biomedical Centre, Department of Biomedical, Engineering, Lund University, BMC D13, 221 84 Lund, Sweden; (L.H.B.); (Z.H.); (M.R.); (J.G.); (J.E.); (R.A.); (G.M.-V.)
- Cancer Center, Semmelweis University, Budapest 1083, Hungary
| | - Magdalena Kuras
- Section for Clinical Chemistry, Department of Translational Medicine, Lund University, Skåne University Hospital Malmö, 205 02 Malmö, Sweden; (M.K.); (I.P.); (K.P.); (J.M.); (A.S.)
| | - Jimmy Rodriguez Murillo
- Division of Physiological Chemistry I, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-17 177 Stockholm, Sweden; (J.R.M.); (Y.S.)
| | - Yutaka Sugihara
- Division of Physiological Chemistry I, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-17 177 Stockholm, Sweden; (J.R.M.); (Y.S.)
| | - Indira Pla
- Section for Clinical Chemistry, Department of Translational Medicine, Lund University, Skåne University Hospital Malmö, 205 02 Malmö, Sweden; (M.K.); (I.P.); (K.P.); (J.M.); (A.S.)
| | - Zsolt Horvath
- Clinical Protein Science & Imaging, Biomedical Centre, Department of Biomedical, Engineering, Lund University, BMC D13, 221 84 Lund, Sweden; (L.H.B.); (Z.H.); (M.R.); (J.G.); (J.E.); (R.A.); (G.M.-V.)
| | - Krzysztof Pawłowski
- Section for Clinical Chemistry, Department of Translational Medicine, Lund University, Skåne University Hospital Malmö, 205 02 Malmö, Sweden; (M.K.); (I.P.); (K.P.); (J.M.); (A.S.)
- Department of Biochemistry and Microbiology, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Melinda Rezeli
- Clinical Protein Science & Imaging, Biomedical Centre, Department of Biomedical, Engineering, Lund University, BMC D13, 221 84 Lund, Sweden; (L.H.B.); (Z.H.); (M.R.); (J.G.); (J.E.); (R.A.); (G.M.-V.)
| | - Kenichi Miharada
- Department of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, BMC A12, Sölvegatan 17, 221 84 Lund, Sweden;
| | - Jeovanis Gil
- Clinical Protein Science & Imaging, Biomedical Centre, Department of Biomedical, Engineering, Lund University, BMC D13, 221 84 Lund, Sweden; (L.H.B.); (Z.H.); (M.R.); (J.G.); (J.E.); (R.A.); (G.M.-V.)
| | - Jonatan Eriksson
- Clinical Protein Science & Imaging, Biomedical Centre, Department of Biomedical, Engineering, Lund University, BMC D13, 221 84 Lund, Sweden; (L.H.B.); (Z.H.); (M.R.); (J.G.); (J.E.); (R.A.); (G.M.-V.)
| | - Roger Appelqvist
- Clinical Protein Science & Imaging, Biomedical Centre, Department of Biomedical, Engineering, Lund University, BMC D13, 221 84 Lund, Sweden; (L.H.B.); (Z.H.); (M.R.); (J.G.); (J.E.); (R.A.); (G.M.-V.)
| | - Tasso Miliotis
- Translational Science, Cardiovascular Renal and Metabolism, IMED Biotech Unit, AstraZeneca, 431 50 Gothenburg, Sweden;
| | - Bo Baldetorp
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, 221 85 Lund, Sweden; (B.B.); (H.O.); (L.L.); (C.W.); (E.W.); (G.J.)
| | - Christian Ingvar
- Department of Surgery, Clinical Sciences, Lund University, Skåne University Hospital, 222 42 Lund, Sweden;
| | - Håkan Olsson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, 221 85 Lund, Sweden; (B.B.); (H.O.); (L.L.); (C.W.); (E.W.); (G.J.)
| | - Lotta Lundgren
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, 221 85 Lund, Sweden; (B.B.); (H.O.); (L.L.); (C.W.); (E.W.); (G.J.)
| | - Peter Horvatovich
- Department of Analytical Biochemistry, Faculty of Science and Engineering, University of Groningen, 9712 CP Groningen, The Netherlands;
| | - Charlotte Welinder
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, 221 85 Lund, Sweden; (B.B.); (H.O.); (L.L.); (C.W.); (E.W.); (G.J.)
| | - Elisabet Wieslander
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, 221 85 Lund, Sweden; (B.B.); (H.O.); (L.L.); (C.W.); (E.W.); (G.J.)
| | - Ho Jeong Kwon
- Department of Biotechnology, Yonsei University, Seoul 03722, Korea;
| | - Johan Malm
- Section for Clinical Chemistry, Department of Translational Medicine, Lund University, Skåne University Hospital Malmö, 205 02 Malmö, Sweden; (M.K.); (I.P.); (K.P.); (J.M.); (A.S.)
| | - Istvan Balazs Nemeth
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary;
| | - Göran Jönsson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, 221 85 Lund, Sweden; (B.B.); (H.O.); (L.L.); (C.W.); (E.W.); (G.J.)
| | - David Fenyö
- Institute for Systems Genetics, NYU School of Medicine, 550 1st Ave, New York, NY 10016, USA;
| | - Aniel Sanchez
- Section for Clinical Chemistry, Department of Translational Medicine, Lund University, Skåne University Hospital Malmö, 205 02 Malmö, Sweden; (M.K.); (I.P.); (K.P.); (J.M.); (A.S.)
| | - György Marko-Varga
- Clinical Protein Science & Imaging, Biomedical Centre, Department of Biomedical, Engineering, Lund University, BMC D13, 221 84 Lund, Sweden; (L.H.B.); (Z.H.); (M.R.); (J.G.); (J.E.); (R.A.); (G.M.-V.)
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Park Y, Kim D, Lee JS, Kim YN, Jeong YK, Lee KG, Choi D. Association between diet and gallstones of cholesterol and pigment among patients with cholecystectomy: a case-control study in Korea. J Health Popul Nutr 2017; 36:39. [PMID: 29169372 PMCID: PMC5701373 DOI: 10.1186/s41043-017-0116-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 11/15/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND The prevalence of cholesterol gallstones is high in Western populations, while pigment gallstones are common in Asian populations. Dietary factors are suggested to be associated with gallstone risk, but their relationship with gallstone type has not been evaluated. This study investigated the association between diet and risk of cholesterol gallstone or pigment gallstone in a Korean population whose dietary pattern and type of gallstone were changed during the last 30 years. METHODS Patients with cholesterol (n = 40) and pigment (n = 59) gallstones were recruited after laparoscopic cholecystectomy and were compared with those of age- and sex-matched controls without gallstones (n = 99). Dietary intakes were assessed by trained dietitians using a semi-quantitative food frequency questionnaire. Multinomial logistic regression analysis was performed to calculate odds ratios and 95% confidence intervals to examine the associations between diet and risk for type of gallstones adjusted by potential confounders. RESULTS Patients with cholesterol gallstone consumed more lipid, animal lipid, beef, pork, and fried food than those with pigment gallstones and control, while patients with pigment gallstone consumed more carbohydrate and noodles than patients with cholesterol gallstone and control. In multinomial logistic regression analysis using control as reference group, dietary pattern with high consumption of beef, pork, and fried food was associated with risk of cholesterol gallstones, while there was no association between the risk of pigment gallstone and dietary pattern. In addition, control consumed more alcohol than patients with cholesterol and pigment gallstones. CONCLUSIONS The present study suggested consumption of fat from meat and fried foods increased the risk of cholesterol gallstone, and intake of carbohydrate from noodles increased the risk of pigment gallstone.
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Affiliation(s)
- Yongsoon Park
- Department of Food and Nutrition, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763 South Korea
| | - Doyeon Kim
- Department of Food and Nutrition, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763 South Korea
| | - Ju Seon Lee
- Department of Food and Nutrition, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763 South Korea
| | - Yu Na Kim
- Department of Food and Nutrition, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763 South Korea
| | - Yoon Kyung Jeong
- Division of Hepatobiliary and Pancreas Surgery, Department of Surgery, Hanyang University College of Medicine, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763 South Korea
| | - Kyeong Geun Lee
- Division of Hepatobiliary and Pancreas Surgery, Department of Surgery, Hanyang University College of Medicine, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763 South Korea
| | - Dongho Choi
- Division of Hepatobiliary and Pancreas Surgery, Department of Surgery, Hanyang University College of Medicine, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763 South Korea
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Khalmuratova I, Kim H, Nam YJ, Oh Y, Jeong MJ, Choi HR, You YH, Choo YS, Lee IJ, Shin JH, Yoon H, Kim JG. Diversity and Plant Growth Promoting Capacity of Endophytic Fungi Associated with Halophytic Plants from the West Coast of Korea. Mycobiology 2015; 43:373-83. [PMID: 26839496 PMCID: PMC4731641 DOI: 10.5941/myco.2015.43.4.373] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 09/24/2015] [Accepted: 09/24/2015] [Indexed: 05/10/2023]
Abstract
Five halophytic plant species, Suaeda maritima, Limonium tetragonum, Suaeda australis, Phragmites australis, and Suaeda glauca Bunge, which are native to the Muan salt marsh of South Korea, were examined for fungal endophytes by sequencing the internal transcribed spacer (ITS) region containing ITS1, 5.8S rRNA, and ITS2. In total, 160 endophytic fungal strains were isolated and identified from the roots of the 5 plant species. Taxonomically, all 160 strains belonged to the phyla Ascomycota, Basidiomycota, and Zygomycota. The most dominant genus was Fusarium, followed by the genera Penicillium and Alternaria. Subsequently, using 5 statistical methods, the diversity indices of the endophytes were determined at genus level. Among these halophytic plants, P. australis was found to host the greatest diversity of endophytic fungi. Culture filtrates of endophytic fungi were treated to Waito-C rice seedlings for plant growth-promoting effects. The fungal strain Su-3-4-3 isolated from S. glauca Bunge provide the maximum plant length (20.1 cm) in comparison with wild-type Gibberella fujikuroi (19.6 cm). Consequently, chromatographic analysis of the culture filtrate of Su-3-4-3 showed the presence of physiologically active gibberellins, GA1 (0.465 ng/mL), GA3 (1.808 ng/mL) along with other physiologically inactive GA9 (0.054 ng/mL) and GA24 (0.044 ng/mL). The fungal isolate Su-3-4-3 was identified as Talaromyces pinophilus.
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Affiliation(s)
- Irina Khalmuratova
- School of Life Sciences and Biotechnology, Institute for Microorganisms, Kyungpook National University, Daegu 41566, Korea
| | - Hyun Kim
- School of Life Sciences and Biotechnology, Institute for Microorganisms, Kyungpook National University, Daegu 41566, Korea
| | - Yoon-Jong Nam
- School of Life Sciences and Biotechnology, Institute for Microorganisms, Kyungpook National University, Daegu 41566, Korea
| | - Yoosun Oh
- School of Life Sciences and Biotechnology, Institute for Microorganisms, Kyungpook National University, Daegu 41566, Korea
| | - Min-Ji Jeong
- School of Life Sciences and Biotechnology, Institute for Microorganisms, Kyungpook National University, Daegu 41566, Korea
| | - Hye-Rim Choi
- School of Life Sciences and Biotechnology, Institute for Microorganisms, Kyungpook National University, Daegu 41566, Korea
| | - Young-Hyun You
- School of Life Sciences and Biotechnology, Institute for Microorganisms, Kyungpook National University, Daegu 41566, Korea
| | - Yeon-Sik Choo
- Department of Biology, College of National Sciences, Kyungpook National University, Daegu 41566, Korea
| | - In-Jung Lee
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea
| | - Jae-Ho Shin
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea
| | - Hyeokjun Yoon
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon 22689, Korea
| | - Jong-Guk Kim
- School of Life Sciences and Biotechnology, Institute for Microorganisms, Kyungpook National University, Daegu 41566, Korea
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