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Lee JM, Kim JH, Kim JY, Oh MK, Kim BG. Enhancing the soluble expression of α-1,2-fucosyltransferase in E. coli using high-throughput flow cytometry screening coupled with a split-GFP. J Biotechnol 2024; 387:49-57. [PMID: 38556215 DOI: 10.1016/j.jbiotec.2024.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/14/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
2'-Fucosyllactose (2'-FL), one of the major human milk oligosaccharides, was produced in several engineered microorganisms. However, the low solubility of α-1,2-fucosyltransferase (α1,2-FucT) often becomes a bottleneck to produce maximum amount of 2'-FL in the microorganisms. To overcome this solubility issue, the following studies were conducted to improve the soluble expression of α1,2-FucT. Initially, hydrophobic amino acids in the hydrophilic region of the 6 α-helices were mutated, adhering to the α-helix rule. Subsequently, gfp11 was fused to the C-terminal of futC gene encoding α1,2-FucT (FutC), enabling selection of high-fluorescence mutants through split-GFP. Each mutant library was screened via fluorescence activated cell sorting (FACS) to separate soluble mutants for high-throughput screening. As a result, L80C single mutant and A121D/P124A/L125R triple mutant were found, and a combined quadruple mutant was created. Furthermore, we combined mutations of conserved sequences (Q150H/C151R/Q239S) of FutC, which showed positive effects in the previous studies from our lab, with the above quadruple mutants (L80C/A121D/P124A/L125R). The resulting strain produced approximately 3.4-fold higher 2'-FL titer than that of the wild-type, suggesting that the conserved sequence mutations are an independent subset of the mutations that further improve the solubility of the target protein acquired by random mutagenesis using split-GFP.
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Affiliation(s)
- Jun-Min Lee
- Department of Chemical & Biological Engineering, Korea University, Seoul 136-763, South Korea
| | - Jung Hwa Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea; Interdisciplinary Program for Biochemical Engineering and Biotechnology, Seoul National University, Seoul, South Korea
| | - Jin Young Kim
- Interdisciplinary Program for Biochemical Engineering and Biotechnology, Seoul National University, Seoul, South Korea
| | - Min-Kyu Oh
- Department of Chemical & Biological Engineering, Korea University, Seoul 136-763, South Korea.
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea; Institute of Molecular Biology and Genetics, Seoul National University, Seoul, South Korea; Interdisciplinary Program for Biochemical Engineering and Biotechnology, Seoul National University, Seoul, South Korea; Bio-MAX/N-Bio Institute, Seoul National University, Seoul, South Korea; Institute for Sustainable Development (ISD), Seoul National University, Seoul, South Korea.
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2
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Tran HN, Park CB, Lee JH, Seo JH, Kim JY, Oh SH, Cho S. γ-Ray Irradiation Enables Annealing- and Light-Soaking-Free Solution Processable SnO 2 Electron Transport Layer for Inverted Organic Solar Cells. Small 2024; 20:e2307441. [PMID: 38054784 DOI: 10.1002/smll.202307441] [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: 08/27/2023] [Revised: 11/13/2023] [Indexed: 12/07/2023]
Abstract
The electrode buffer layer is crucial for high-performance and stable OSCs, optimizing charge transport and energy level alignment at the interface between the polymer active layer and electrode. Recently, SnO2 has emerged as a promising material for the cathode buffer layer due to its desirable properties, such as high electron mobility, transparency, and stability. Typically, SnO2 nanoparticle layers require a postannealing treatment above 150°C in an air environment to remove the surfactant ligands and obtain high-quality thin films. However, this poses challenges for flexible electronics as flexible substrates can't tolerate temperatures exceeding 100°C. This study presents solution-processable and annealing-free SnO2 nanoparticles by employing y-ray irradiation to disrupt the bonding between surfactant ligands and SnO2 nanoparticles. The SnO2 layer treated with y-ray irradiation is used as an electron transport layer in OSCs based on PTB7-Th:IEICO-4F. Compared to the conventional SnO2 nanoparticles that required high-temperature annealing, the y-SnO2 nanoparticle-based devices exhibit an 11% comparable efficiency without postannealing at a high temperature. Additionally, y-ray treatment has been observed to eliminate the light-soaking effect of SnO2. By eliminating the high-temperature postannealing and light-soaking effect, y-SnO2 nanoparticles offer a promising, cost-effective solution for future flexible solar cells fabricated using roll-to-roll mass processing.
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Affiliation(s)
- Hong Nhan Tran
- Department of Physics and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Chan Beom Park
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jin Hee Lee
- Department of Physics, University of Seoul, Seoul, 02504, Republic of Korea
| | - Jung Hwa Seo
- Department of Physics, University of Seoul, Seoul, 02504, Republic of Korea
| | - Jin Young Kim
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Seung-Hwan Oh
- Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute (KAERI), Jeollabuk-do, 56212, Republic of Korea
| | - Shinuk Cho
- Department of Physics and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, Ulsan, 44610, Republic of Korea
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Sharma VV, Shin YS, Kim JY, Kim DS, Kim GH. Hole transport layer engineering in high performance quasi-2D perovskite blue light emitting diodes. Nanoscale 2024. [PMID: 38623652 DOI: 10.1039/d4nr00834k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Quasi-2D perovskites have emerged as highly promising materials for application in perovskite light-emitting diodes (PeLEDs), garnering significant attention due to their outstanding semiconductor properties. These materials boast an inherent multi-quantum well structure that imparts a robust confinement effect, particularly advantageous for blue emission. However, the development of blue emitters utilizing quasi-2D perovskites encounters challenges, notably colour instability, multipeak emission, and suboptimal fluorescence yield. The hole transfer layer (HTL) on which the perovskite layer is deposited in PeLEDs further affects the performance and efficiency. In this review, we delve into the evolution of blue PeLEDs and elucidate the optical properties of quasi-2D perovskites with the primary focus on HTL materials. We explore different HTL materials like PEDOT:PSS, metal oxides, and conjugated polyelectrolytes as well as ionic liquids, and their role in enhancing the colour stability, minimizing interfacial defects and increasing the fluorescence yield. This review endeavours to provide a holistic perspective of the different HTLs and serve as a valuable reference for researchers navigating the realm of HTL engineering towards the realization of high-performance blue quasi-2D PeLEDs.
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Affiliation(s)
- Vivek Vishal Sharma
- Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
| | - Yun Seop Shin
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
| | - Jin Young Kim
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
| | - Dong Suk Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
| | - Gi-Hwan Kim
- Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
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Kim JY, Kim J, Lee M. Are virtual reality intravenous injection training programs effective for nurses and nursing students? A systematic review. Nurse Educ Today 2024; 139:106208. [PMID: 38691901 DOI: 10.1016/j.nedt.2024.106208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 03/25/2024] [Accepted: 04/07/2024] [Indexed: 05/03/2024]
Abstract
OBJECTIVE This study examines the characteristics and effects of virtual reality (VR) intravenous injection training programs for nurses and nursing students, using Kirkpatrick's four-level model of educational evaluation. Kirkpatrick's framework is based on the premise that learning from training programs can be classified into four levels: reaction, learning, behavior, and results. DESIGN A systematic review. DATA SOURCES Literature searches were conducted of eight electronic databases (PubMed, CINAHL, Cochrane, EMBASE, DBpia, KISS, RISS, KoreaMed) to identify original research articles from each database's inception to March 2023. REVIEW METHODS For the 13 selected articles, quality appraisal was performed using the RoB 2 and ROBINS-I tools for randomized controlled trials (RCTs) and non-RCTs, respectively. RESULTS Virtual intravenous simulators and desktop and immersive VR technologies were utilized in intravenous injection training. These VR technologies were applied either alone or in conjunction with simulators, focusing on junior nursing students without intravenous injection experience. We found a positive effect on nursing students' intravenous injection performance (Level 2: learning evaluation) in approximately half the studies. However, results were inconsistent due to measurement tools' diversity. In all studies, the degree of evaluation for Levels 1 (reaction evaluation), 3 (behavior evaluation), and 4 (results evaluation) of the Kirkpatrick Model was low. CONCLUSIONS Desktop or immersive VR with low-fidelity or high-fidelity simulators should be provided to senior nursing students and new nurses for intravenous injection training. Additionally, standardized tools should be developed to accurately measure training effects. Finally, the Kirkpatrick Model's four levels should be evaluated to demonstrate the training programs' value.
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Affiliation(s)
- Jin Young Kim
- Department of Nursing, Kyungmin University, 545 Seobu-ro, Uijeongbu-si, Gyeonggi-do, Republic of Korea
| | - Juri Kim
- Department of Nursing, Kyungmin University, 545 Seobu-ro, Uijeongbu-si, Gyeonggi-do, Republic of Korea
| | - Mikyoung Lee
- Department of Nursing, Pai Chai University, 155-40 Baejae-ro, Seo-gu, Daejeon, Republic of Korea.
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Noh YW, Ha JM, Son JG, Han J, Lee H, Kim DW, Jee MH, Shin WG, Cho S, Kim JY, Song MH, Woo HY. Improved photovoltaic performance and stability of perovskite solar cells by adoption of an n-type zwitterionic cathode interlayer. Mater Horiz 2024. [PMID: 38567487 DOI: 10.1039/d4mh00253a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Recently, inverted perovskite solar cells (PeSCs) have witnessed significant advancements; however, their long-term stability remains a challenge because of the oxidation of silver cathodes to form AgI by mobile iodides. To overcome this problem, we propose the integration of an electron-deficient naphthalene diimide-based zwitterion (NDI-ZI) as the cathode interlayer. Compared to the physical ion-blocking layer, it effectively captures ions by forming ionic bonds via electrostatic Coulombic interaction to suppress the migration of iodide and Ag ions. The NDI-ZI interlayer also suppresses the shunt paths and modulates the work function of the Ag electrode by forming interface dipoles, thereby enhancing charge extraction. FA0.85Cs0.15PbI3 based PeSCs incorporating NDI-ZI exhibited a noticeably high power conversion efficiency of up to 23.3% and outstanding stability, maintaining ∼80% of their initial performance over 1500 h at 85 °C and over 500 h under continuous 1-sun illumination. This study highlights the potential of a zwitterionic cathode interlayer in diverse perovskite optoelectronic devices, leading to their improved efficiency and stability.
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Affiliation(s)
- Young Wook Noh
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
| | - Jung Min Ha
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea.
| | - Jung Geon Son
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea
| | - Jongmin Han
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
| | - Heunjeong Lee
- Department of Physics and EHSRC, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Dae Woo Kim
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
| | - Min Hun Jee
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea.
| | - Woo Gyeong Shin
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
| | - Shinuk Cho
- Department of Physics and EHSRC, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Jin Young Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea
| | - Myoung Hoon Song
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea.
| | - Han Young Woo
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea.
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Hwang SK, Park SJ, Park JH, Yoon JH, Yu Cho J, Cho DK, Heo J, Kim GY, Kim JY. Cs-treatments in Kesterite Thin-Film Solar Cells for Efficient Perovskite Tandems. Small 2024; 20:e2307175. [PMID: 38032159 DOI: 10.1002/smll.202307175] [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: 08/20/2023] [Revised: 10/28/2023] [Indexed: 12/01/2023]
Abstract
Cu2ZnSn(S,Se)4 (CZTSSe) thin film solar cells are an attractive choice for a bottom cell of the low-cost and environmental tandem solar cells with perovskite. However, the progress in developing efficient perovskite/CZTSSe tandem solar cells has been hindered by the lack of high performance of the CZTSSe bottom cell. Here, an efficient CZTSSe bottom cell is demonstrated by adopting a facile and effective CsF treatment process. It is found that the CsF treatment not only facilitates grain growth and improves phase homogeneity by suppressing the detrimental deep-level defects and secondary phases, but also induces larger band bending and stronger drift force at the P-N junction. As a result, the carrier extraction/transport can be effectively accelerated, while reducing the interfacial recombination. These combined effects eventually result in a significant performance enhancement from 8.38% to 10.20%. The CsF-treated CZTSSe solar cell is finally applied to the mechanically-stacked perovskite/CZTSSe 4-terminal tandem cell by coupling a semi-transparent perovskite top cell, which exhibits the highest reported tandem efficiency of 23.01%.
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Affiliation(s)
- Sun Kyung Hwang
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - So Jeong Park
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jae Hyun Park
- 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
| | - Joo Ho Yoon
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jae Yu Cho
- Department of Materials Science and Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Deok Ki Cho
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jaeyeong Heo
- Department of Materials Science and Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Gee Yeong Kim
- Advanced Photovoltaics Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jin Young Kim
- 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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Cui M, Lee S, Ban SH, Ryu JR, Shen M, Yang SH, Kim JY, Choi SK, Han J, Kim Y, Han K, Lee D, Sun W, Kwon HB, Lee D. A single-component, light-assisted uncaging switch for endoproteolytic release. Nat Chem Biol 2024; 20:353-364. [PMID: 37973890 DOI: 10.1038/s41589-023-01480-6] [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: 05/06/2022] [Accepted: 10/12/2023] [Indexed: 11/19/2023]
Abstract
Proteases function as pivotal molecular switches, initiating numerous biological events. Notably, potyviral protease, derived from plant viruses, has emerged as a trusted proteolytic switch in synthetic biological circuits. To harness their capabilities, we have developed a single-component photocleavable switch, termed LAUNCHER (Light-Assisted UNcaging switCH for Endoproteolytic Release), by employing a circularly permutated tobacco etch virus protease and a blue-light-gated substrate, which are connected by fine-tuned intermodular linkers. As a single-component system, LAUNCHER exhibits a superior signal-to-noise ratio compared with multi-component systems, enabling precise and user-controllable release of payloads. This characteristic renders LAUNCHER highly suitable for diverse cellular applications, including transgene expression, tailored subcellular translocation and optochemogenetics. Additionally, the plug-and-play integration of LAUNCHER into existing synthetic circuits facilitates the enhancement of circuit performance. The demonstrated efficacy of LAUNCHER in improving existing circuitry underscores its significant potential for expanding its utilization in various applications.
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Affiliation(s)
- Mingguang Cui
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Seunghwan Lee
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Sung Hwan Ban
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jae Ryun Ryu
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Meiying Shen
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Soo Hyun Yang
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jin Young Kim
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
| | - Seul Ki Choi
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jaemin Han
- Korea University College of Medicine, Seoul, Republic of Korea
| | - Yoonhee Kim
- Department of Neuroscience, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kihoon Han
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
- Department of Neuroscience, Korea University College of Medicine, Seoul, Republic of Korea
| | - Donghun Lee
- Department of Physics, Korea University, Seoul, Republic of Korea
| | - Woong Sun
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Hyung-Bae Kwon
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dongmin Lee
- Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea.
- BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea.
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Lee GE, Bang G, Byun J, Lee CJ, Chen W, Jeung D, An HJ, Kang HC, Lee JY, Lee HS, Hong YS, Kim DJ, Keniry M, Kim JY, Choi JS, Fanto M, Cho SJ, Kim KD, Cho YY. Dysregulated CREB3 cleavage at the nuclear membrane induces karyoptosis-mediated cell death. Exp Mol Med 2024; 56:686-699. [PMID: 38480902 PMCID: PMC10985101 DOI: 10.1038/s12276-024-01195-1] [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: 09/01/2023] [Revised: 12/17/2023] [Accepted: 01/02/2024] [Indexed: 04/04/2024] Open
Abstract
Cancer cells often exhibit resistance to apoptotic cell death, but they may be vulnerable to other types of cell death. Elucidating additional mechanisms that govern cancer cell death is crucial for developing new therapies. Our research identified cyclic AMP-responsive element-binding protein 3 (CREB3) as a crucial regulator and initiator of a unique cell death mechanism known as karyoptosis. This process is characterized by nuclear shrinkage, deformation, and the loss of nuclear components following nuclear membrane rupture. We found that the N-terminal domain (aa 1-230) of full-length CREB3 (CREB3-FL), which is anchored to the nuclear inner membrane (INM), interacts with lamins and chromatin DNA. This interaction maintains a balance between the outward force exerted by tightly packed DNA and the inward constraining force, thereby preserving INM integrity. Under endoplasmic reticulum (ER) stress, aberrant cleavage of CREB3-FL at the INM leads to abnormal accumulation of the cleaved form of CREB3 (CREB3-CF). This accumulation disrupts the attachment of CREB3-FL to the INM, resulting in sudden rupture of the nuclear membrane and the onset of karyoptosis. Proteomic studies revealed that CREB3-CF overexpression induces a DNA damage response akin to that caused by UVB irradiation, which is associated with cellular senescence in cancer cells. These findings demonstrated that the dysregulation of CREB3-FL cleavage is a key factor in karyoptotic cell death. Consequently, these findings suggest new therapeutic strategies in cancer treatment that exploit the process of karyoptosis.
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Affiliation(s)
- Ga-Eun Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- BK21-4th, and RCD Control∙Material Research Institute, College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Geul Bang
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju-si, Chungbuk, 28119, Republic of Korea
| | - Jiin Byun
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- BK21-4th, and RCD Control∙Material Research Institute, College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Cheol-Jung Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- Research Center for Materials Analysis, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Weidong Chen
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- BK21-4th, and RCD Control∙Material Research Institute, College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Dohyun Jeung
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- BK21-4th, and RCD Control∙Material Research Institute, College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Hyun-Jung An
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Han Chang Kang
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- BK21-4th, and RCD Control∙Material Research Institute, College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Joo Young Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- BK21-4th, and RCD Control∙Material Research Institute, College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Hye Suk Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- BK21-4th, and RCD Control∙Material Research Institute, College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Young-Soo Hong
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, Chungbuk, 28116, Republic of Korea
| | - Dae Joon Kim
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, 78504, USA
| | - Megan Keniry
- Department of Biology, University of Texas Rio Grande Valley, Edinburg, TX, 78539, USA
| | - Jin Young Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju-si, Chungbuk, 28119, Republic of Korea
| | - Jin-Sung Choi
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Manolis Fanto
- Department of Basic and Clinical Neuroscience, King's College London, Maurice Wohl Clinical Neuroscience Institute, London, UK
| | - Sung-Jun Cho
- University of Minnesota, Department of Medicine, 420 Delaware St SE, MMC 284, Minneapolis, MN, 55455, USA
| | - Kwang-Dong Kim
- Division of Applied Life Science (BK21 four), PMBBRC, Gyeongsang National University, Jinju, 52828, Korea
| | - Yong-Yeon Cho
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea.
- BK21-4th, and RCD Control∙Material Research Institute, College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea.
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Lee YS, Im J, Yang Y, Lee HJ, Lee MR, Woo SM, Park SJ, Kong SY, Kim JY, Hwang H, Kim YH. New Function Annotation of PROSER2 in Pancreatic Ductal Adenocarcinoma. J Proteome Res 2024; 23:905-915. [PMID: 38293943 PMCID: PMC10913870 DOI: 10.1021/acs.jproteome.3c00632] [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: 09/27/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 02/01/2024]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) has a dismal prognosis due to the absence of diagnostic markers and molecular targets. Here, we took an unconventional approach to identify new molecular targets for pancreatic cancer. We chose uncharacterized protein evidence level 1 without function annotation from extensive proteomic research on pancreatic cancer and focused on proline and serine-rich 2 (PROSER2), which ranked high in the cell membrane and cytoplasm. In our study using cell lines and patient-derived orthotopic xenograft cells, PROSER2 exhibited a higher expression in cells derived from primary tumors than in those from metastatic tissues. PROSER2 was localized in the cell membrane and cytosol by immunocytochemistry. PROSER2 overexpression significantly reduced the metastatic ability of cancer cells, whereas its suppression had the opposite effect. Proteomic analysis revealed that PROSER2 interacts with STK25 and PDCD10, and their binding was confirmed by immunoprecipitation and immunocytochemistry. STK25 knockdown enhanced metastasis by decreasing p-AMPK levels, whereas PROSER2-overexpressing cells increased the level of p-AMPK, indicating that PROSER2 suppresses invasion via the AMPK pathway by interacting with STK25. This is the first demonstration of the novel role of PROSER2 in antagonizing tumor progression via the STK25-AMPK pathway in PDAC. LC-MS/MS data are available at MassIVE (MSV000092953) and ProteomeXchange (PXD045646).
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Affiliation(s)
- Yu-Sun Lee
- Division
of Convergence Technology, Research Institute
of National Cancer Center, Goyang 10408, Republic
of Korea
- Department
of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic
of Korea
| | - Jieun Im
- Division
of Convergence Technology, Research Institute
of National Cancer Center, Goyang 10408, Republic
of Korea
| | - Yeji Yang
- Research
Center for Bioconvergence Analysis, Korea
Basic Science Institute, Cheongju 28119, Republic
of Korea
- Critical
Diseases Diagnostics Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Hea Ji Lee
- Research
Center for Bioconvergence Analysis, Korea
Basic Science Institute, Cheongju 28119, Republic
of Korea
| | - Mi Rim Lee
- Department
of Cancer Biomedical Science, National Cancer
Center Graduate School of Cancer Science and Policy, Goyang 10408, Republic of Korea
| | - Sang-Myung Woo
- Department
of Cancer Biomedical Science, National Cancer
Center Graduate School of Cancer Science and Policy, Goyang 10408, Republic of Korea
- Department
of Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang 10408, Republic
of Korea
| | - Sang-Jae Park
- Department
of Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang 10408, Republic
of Korea
- Department
of Surgical Oncology Branch, Research Institute
of National Cancer Center, Goyang 10408, Republic
of Korea
| | - Sun-Young Kong
- Department
of Cancer Biomedical Science, National Cancer
Center Graduate School of Cancer Science and Policy, Goyang 10408, Republic of Korea
- Department
of Targeted Therapy Branch, Research Institute
of National Cancer Center, Goyang 10408, Republic
of Korea
| | - Jin Young Kim
- Research
Center for Bioconvergence Analysis, Korea
Basic Science Institute, Cheongju 28119, Republic
of Korea
- Critical
Diseases Diagnostics Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Heeyoun Hwang
- Research
Center for Bioconvergence Analysis, Korea
Basic Science Institute, Cheongju 28119, Republic
of Korea
- Critical
Diseases Diagnostics Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Yun-Hee Kim
- Division
of Convergence Technology, Research Institute
of National Cancer Center, Goyang 10408, Republic
of Korea
- Department
of Cancer Biomedical Science, National Cancer
Center Graduate School of Cancer Science and Policy, Goyang 10408, Republic of Korea
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10
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Kwon YS, Park SH, Kim HJ, Park JS, Kim MA, Kim TH, Lee JY, Kim JY. Pneumonia Prevalence Upon Chest Radiography According to Vaccination Status Among Patients Under 50 Years of Age With Coronavirus Disease 2019. J Korean Med Sci 2024; 39:e55. [PMID: 38374628 PMCID: PMC10876433 DOI: 10.3346/jkms.2024.39.e55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 12/14/2023] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) vaccination is effective in preventing the disease transmission and progression. However, the relatively mild disease course of the omicron variant and the decrease in antibodies over time after vaccination raise questions about the effectiveness of vaccination, especially in young people. We compared the prevalence of pneumonia and chest X-ray severity score according to vaccination status among patients < 50 years old with COVID-19. METHODS From January 17 to March 17, 2022, 579 patients with COVID-19, who were < 50 years old and had a known vaccination history in our institution, were all included in this study. All patients underwent initial chest radiography, and follow-up chest radiographs were obtained every two days until discharge. Pneumonia was scored from the radiographs using the Brixia scoring system. The scores of the six lung zones were added for a total score ranging from 0 to 18. Patients were divided into four groups according to 10-year age intervals. Differences between groups were analyzed using the χ² or Fisher's exact tests for categorical variables and the Kruskal-Wallis test or analysis of variance for continuous variables. RESULTS Among patients aged 12-19 years, the prevalence of pneumonia did not differ depending on vaccination status (non-vaccinated vs. vaccinated, 1/47 [2.1%] vs. 1/18 [5.6%]; P = 0.577). Among patients in their 20s, the prevalence of pneumonia was significantly higher among non-vaccinated patients than among vaccinated patients (8/28, 28.6% vs. 7/138, 5.1%, P < 0.001), similar to patients in their 40s (32/52 [61.5%] vs. 18/138 [13.0%]; P < 0.001). The chest X-ray severity score was also significantly higher in non-vaccinated patients than that in vaccinated patients in their 20s to their 40s (P < 0.001), but not among patients aged 12-19 years (P = 0.678). CONCLUSION In patients aged 20-49 years, vaccinated patients had a significantly lower prevalence of pneumonia and chest X-ray severity score than non-vaccinated patients.
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Affiliation(s)
- Yong Shik Kwon
- Division of Pulmonology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea.
| | - Sun Hyo Park
- Division of Pulmonology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Hyun Jung Kim
- Division of Pulmonology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Jae Seok Park
- Division of Pulmonology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Mi-Ae Kim
- Division of Pulmonology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Tae Hun Kim
- Division of Pulmonology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Ji Yeon Lee
- Division of Infectious Diseases, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Jin Young Kim
- Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea
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Zhang X, Huang S, Kim JY. Cell-type specific circadian transcription factor BMAL1 roles in excitotoxic hippocampal lesions to enhance neurogenesis. iScience 2024; 27:108829. [PMID: 38303690 PMCID: PMC10831945 DOI: 10.1016/j.isci.2024.108829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/11/2023] [Accepted: 01/03/2024] [Indexed: 02/03/2024] Open
Abstract
Circadian clocks, generating daily rhythms in biological processes, maintain homeostasis in physiology, so clock alterations are considered detrimental. Studies in brain pathology support this by reporting abnormal circadian phenotypes in patients, but restoring the abnormalities by light therapy shows no dramatic effects. Recent studies on glial clocks report the complex effects of altered clocks by showing their beneficial effects on brain repairs. However, how neuronal clocks respond to brain pathology is elusive. This study shows that neuronal BMAL1, a core of circadian clocks, reduces its expression levels in neurodegenerative excitotoxicity. In the dentate gyrus of excitotoxic hippocampal lesions, reduced BMAL1 in granule cells precedes apoptosis. This subsequently reduces BMAL1 levels in neighbor neural stem cells and progenitors in the subgranular zone, enhancing proliferation. This shows the various BMAL1 roles depending on cell types, and its alterations can benefit brain repair. Thus, cell-type-specific BMAL1 targeting is necessary to treat brain pathology.
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Affiliation(s)
- Xuebing Zhang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Suihong Huang
- Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Jin Young Kim
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong SAR, China
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12
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Saygin D, DiRenzo D, Raaphorst J, de Groot I, Bingham CO, Lundberg IE, Regardt M, Sarver C, de Visser M, Maxwell LJ, Beaton D, Kim JY, Needham M, Alexanderson H, Christopher-Stine L, Mecoli CA, Park JK. Responsiveness and meaningful thresholds of PROMIS pain interference, fatigue, and physical function forms in adults with idiopathic inflammatory myopathies: Report from the OMERACT Myositis Working Group. Semin Arthritis Rheum 2024; 64:152339. [PMID: 38141522 DOI: 10.1016/j.semarthrit.2023.152339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/18/2023] [Accepted: 11/28/2023] [Indexed: 12/25/2023]
Abstract
BACKGROUND A series of qualitative studies conducted by the OMERACT Myositis Working Group identified pain interference, fatigue, and physical function as highly important life impact domains for adults with idiopathic inflammatory myositis (IIM). In this study, our goal was to assess the responsiveness and minimal important difference of PROMIS pain interference (6a), fatigue (7a), and physical function (8b). METHODS Adults with IIM from USA, Netherlands, Korea, Sweden, and Australia with two "clinical" visits were enrolled in this prospective study. Anchor questions on a Likert scale were collected at baseline, and manual muscle testing (MMT), physician and patient reported global disease activity, and PROMIS instruments were collected at both visits. Responsiveness was assessed with i) ANOVA, ii) paired t-test, effect size and standardized response mean, and iii) Pearson correlation. Minimal important difference (MID), minimal important change (MIC) and minimal detectable change (MDC) values were calculated. RESULTS 114 patients with IIM (median age 60, 60 % female) completed both visits. Changes in PROMIS instruments were significantly different among anchor categories. Patients who reported improvement had a significant improvement in their PROMIS scores with at least medium effect size, while patients who reported worsening and stability did not show a significant change with weak effect size. PROMIS instruments had weak to moderate correlations with MMT, patient and physician global disease activity. MID was approximately 2-3 points for Pain Interference and 3-4 points for Fatigue and Physical Function forms based on the method used. MIC was approximately 4-5 for improvement of all the instruments, while MDC was 1.7-2 points for Pain Interference and Physical Function and 3.2-3.9 for Fatigue. CONCLUSION This study provides evidence towards the responsiveness of the PROMIS instruments in a large international prospective cohort of adults with IIM supporting their use as PROMs in adult myositis.
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Affiliation(s)
- D Saygin
- Division of Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, USA
| | - D DiRenzo
- Division of Rheumatology, Department of Medicine, University of Pennsylvania, Philadelphia, USA
| | - J Raaphorst
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | | | - C O Bingham
- Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, USA
| | - I E Lundberg
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, Karolinska University, Stockholm, Sweden
| | - M Regardt
- Department of Neurobiology, Care Sciences and Society, Division of Occupational Therapy, Karolinska Institutet and Medical Unit Occupational Therapy and Physical Therapy, Karolinska University Hospital, Stockholm, Sweden
| | | | - M de Visser
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - L J Maxwell
- Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - D Beaton
- Institute for Work & Health and Institute for Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - J Y Kim
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Korea
| | - M Needham
- Department of Neurology, Fiona Stanley Hospital, IIID Murdoch University and University of Notre Dame, Perth, Australia
| | - H Alexanderson
- Medical Unit Occupational Therapy and Physical Therapy, Karolinska University Hospital and Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - L Christopher-Stine
- Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, USA
| | - C A Mecoli
- Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, USA
| | - J K Park
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Korea.
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13
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Kwon M, Joung CI, Shin H, Lee CC, Song YS, Lee YJ, Kang S, Kim JY, Lee S. Detection of novel drug-adverse drug reaction signals in rheumatoid arthritis and ankylosing spondylitis: analysis of Korean real-world biologics registry data. Sci Rep 2024; 14:2660. [PMID: 38302579 PMCID: PMC10834537 DOI: 10.1038/s41598-024-52822-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 01/24/2024] [Indexed: 02/03/2024] Open
Abstract
This study aimed to detect signals of adverse drug reactions (ADRs) associated with biological disease-modifying antirheumatic drugs (DMARDs) and targeted therapies in rheumatoid arthritis (RA) and ankylosing spondylitis (AS) patients. Utilizing the KOrean College of Rheumatology BIOlogics & Targeted Therapy Registry (KOBIO) data, we calculated relative risks, excluded previously reported drug-ADR pairs, and externally validated remaining pairs using US Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) and single centre's electronic health records (EHR) data. Analyzing data from 2279 RA and 1940 AS patients, we identified 35 significant drug-ADR pairs in RA and 26 in AS, previously unreported in drug labels. Among the novel drug-ADR pairs from KOBIO, 15 were also significant in the FAERS data. Additionally, 2 significant drug-laboratory abnormality pairs were found in RA using CDM MetaLAB analysis. Our findings contribute to the identification of 14 novel drug-ADR signals, expanding our understanding of potential adverse effects related to biological DMARDs and targeted therapies in RA and AS. These results emphasize the importance of ongoing pharmacovigilance for patient safety and optimal therapeutic interventions.
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Affiliation(s)
- M Kwon
- Department of Internal Medicine, School of Medicine, Konyang University, Daejeon, South Korea
- Konyang University Myunggok Medical Research Institute, Daejeon, South Korea
- Department of Biomedical Informatics, School of Medicine, Konyang University, Daejeon, South Korea
| | - C I Joung
- Department of Internal Medicine, School of Medicine, Konyang University, Daejeon, South Korea
| | - H Shin
- Healthcare Data Science Centre, Konyang University Hospital, Daejeon, South Korea
| | - C C Lee
- Department of Biomedical Informatics, School of Medicine, Konyang University, Daejeon, South Korea
| | - Y S Song
- Department of Pathology, School of Medicine, Konyang University, Daejeon, South Korea
| | - Y J Lee
- Department of Biomedical Informatics, School of Medicine, Konyang University, Daejeon, South Korea
- Department of Rehabilitation Medicine, School of Medicine, Konyang University, Daejeon, South Korea
| | - S Kang
- Department of Internal Medicine, School of Medicine, Konyang University, Daejeon, South Korea
| | - J Y Kim
- Department of Biomedical Informatics, School of Medicine, Konyang University, Daejeon, South Korea
- Healthcare Data Science Centre, Konyang University Hospital, Daejeon, South Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Konyang University, Daejeon, South Korea
| | - S Lee
- Department of Computer Engineering, Gachon University, (13120) 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do, South Korea.
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14
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Rasool S, Yeop J, An NG, Kim JW, Kim JY. Role of Charge-Carrier Dynamics Toward the Fabrication of Efficient Air-Processed Organic Solar Cells. Small Methods 2024; 8:e2300578. [PMID: 37649231 DOI: 10.1002/smtd.202300578] [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: 05/04/2023] [Revised: 08/10/2023] [Indexed: 09/01/2023]
Abstract
Over the past couple of decades, immense research has been carried out to understand the photo-physics of an organic solar cell (OSC) that is important to enhance its efficiency and stability. Since OSCs undergoes complex photophysical phenomenon, studying these factors has led to designing new materials and implementing new strategies to improve efficiency in OSCs. In this regard, the invention of the non-fullerene acceptorshas greatly revolutionized the understanding of the fundamental processes occurring in OSCs. However, such vital fundamental research from device physics perspectives is carried out on glovebox (GB) processed OSCs and there is a scarcity of research on air-processed (AP) OSCs. This review will focus on charge carrier dynamics such as exciton diffusion, exciton dissociation, charge-transfer states, significance of highest occupied molecular orbital-offsets, and hole-transfer efficiencies of GB-OSCs and compare them with the available data from the AP-OSCs. Finally, key requirements for the fabrication of efficient AP-OSCs will be presented from a charge-carrier dynamics perspective. The key aspects from the charge-carrier dynamics view to fabricate efficient OSCs either from GB or air are provided.
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Affiliation(s)
- Shafket Rasool
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
| | - Jiwoo Yeop
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
| | - Na Gyeong An
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
- Department of Chemical and Biological Engineering, Monash University, Victoria, 3800, Australia
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Manufacturing, Clayton, Victoria, 3168, Australia
| | - Jae Won Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
| | - Jin Young Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
- Graduate School of Carbon Neutrality, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
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15
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Kim JH, Yu J, Kim JY, Park YJ, Bae S, Kang KK, Jung YJ. Phenotypic characterization of pre-harvest sprouting resistance mutants generated by the CRISPR/Cas9-geminiviral replicon system in rice. BMB Rep 2024; 57:79-85. [PMID: 38303561 PMCID: PMC10910094] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/02/2023] [Accepted: 12/03/2023] [Indexed: 02/03/2024] Open
Abstract
Pre-harvest sprouting is a critical phenomenon involving germination of seeds in the mother plant before harvest under relative humid conditions and reduced dormancy. In this paper, we generated HDR mutant lines with one region SNP (C/T) and an insertion of 6 bp (GGT/GGTGGCGGC) in OsERF1 genes for pre-harvest sprouting (PHS) resistance using CRISPR/Cas9 and a geminiviral replicon system. The incidence of HDR was 2.6% in transformed calli. T1 seeds were harvested from 12 HDR-induced calli and named ERF1-hdr line. Molecular stability, key agronomic properties, physiological properties, and biochemical properties of target genes in the ERF1-hdr line were investigated for three years. The ERF1-hdr line showed significantly enhanced seed dormancy and pre-harvest sprouting resistance. qRT-PCR analysis suggested that enhanced ABA signaling resulted in a stronger phenotype of PHS resistance. These results indicate that efficient HDR can be achieved through SNP/InDel replacement using a single and modular configuration applicable to different rice targets and other crops. This work demonstrates the potential to replace all genes with elite alleles within one generation and greatly expands our ability to improve agriculturally important traits. [BMB Reports 2024; 57(2): 79-85].
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Affiliation(s)
- Jong Hee Kim
- Division of Horticultural Biotechnology, School of Biotechnology, Hankyong National University, Anseong 17579, Korea
- Institute of Genetic Engineering, Hankyong National University, Anseong 17579, Korea
| | - Jihyeon Yu
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Jin Young Kim
- Division of Horticultural Biotechnology, School of Biotechnology, Hankyong National University, Anseong 17579, Korea
| | - Yong Jin Park
- Department of Plant Resources, College of Industrial Sciences, Kongju National University, Yesan 32439, Korea
| | - Sangsu Bae
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Kwon Kyoo Kang
- Division of Horticultural Biotechnology, School of Biotechnology, Hankyong National University, Anseong 17579, Korea
- Institute of Genetic Engineering, Hankyong National University, Anseong 17579, Korea
| | - Yu Jin Jung
- Division of Horticultural Biotechnology, School of Biotechnology, Hankyong National University, Anseong 17579, Korea
- Institute of Genetic Engineering, Hankyong National University, Anseong 17579, Korea
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16
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Song T, Jang H, Seo J, Roe J, Song S, Kim JW, Yeop J, Lee Y, Lee H, Cho S, Kim JY. Enhancing Performance and Stability of Sn-Pb Perovskite Solar Cells with Oriented Phenyl-C 61-Butyric Acid Methyl Ester Layer via High-Temperature Annealing. ACS Nano 2024; 18:2992-3001. [PMID: 38227810 DOI: 10.1021/acsnano.3c07942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Phenyl-C61-butyric acid methyl ester (PCBM) can be used as a passivation material in perovskite solar cells (PeSCs) in order to reduce the trap site of the perovskite. Here, we show that a thick PCBM layer can form a smoother surface on the SnO2 substrate, improving the grain size and reducing the microstrain of the perovskite. High-temperature annealing treatment of PCBM layer not only increases its solvent resistance to perovskite precursor or antisolvent, but also enhances its molecular alignment, resulting in improved conductivity as an electron transport layer. High-temperature annealed PCBM (HT-PCBM) effectively minimizes trap-assisted nonradiative recombination by reducing trap density in perovskite and improving the electrical properties at the interface between SnO2 and perovskite layers. This HT-PCBM process significantly enhances the performance of the PeSCs, including the open-circuit voltage (VOC) from 0.39 to 0.77 V, fill factor from 52% to 65%, and power conversion efficiency (PCE) from 6.03% to 15.50%, representing substantial improvements compared to devices without PCBM. This PCE is the highest efficiency among conventional (n-i-p) Sn-Pb PeSCs reported to date. Moreover, passivating the trap sites of SnO2 and separating the interface between the Sn-containing perovskite and the substrate effectively have improved the stability of the Sn-Pb perovskite in the n-i-p structure. The optimized best device with HT-PCBM has maintained an efficiency of over 90% for more than 300 h at 85 °C and 5000 h at room temperature in a glovebox atmosphere.
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Affiliation(s)
- Taehee Song
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Hyungsu Jang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Jongdeuk Seo
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Jina Roe
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Seyeong Song
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Jae Won Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Jiwoo Yeop
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Yeonjeong Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Heunjeong Lee
- Department of Physics and Energy Harvest Storage Research Center (EHSRC), University of Ulsan, Ulsan 44610, South Korea
| | - Shinuk Cho
- Department of Physics and Energy Harvest Storage Research Center (EHSRC), University of Ulsan, Ulsan 44610, South Korea
| | - Jin Young Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
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17
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Baek S, Jeong YJ, Kim YH, Kim JY, Kim JH, Kim EY, Lim JK, Kim J, Kim Z, Kim K, Chung MJ. Development and Validation of a Robust and Interpretable Early Triaging Support System for Patients Hospitalized With COVID-19: Predictive Algorithm Modeling and Interpretation Study. J Med Internet Res 2024; 26:e52134. [PMID: 38206673 PMCID: PMC10811577 DOI: 10.2196/52134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/03/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Robust and accurate prediction of severity for patients with COVID-19 is crucial for patient triaging decisions. Many proposed models were prone to either high bias risk or low-to-moderate discrimination. Some also suffered from a lack of clinical interpretability and were developed based on early pandemic period data. Hence, there has been a compelling need for advancements in prediction models for better clinical applicability. OBJECTIVE The primary objective of this study was to develop and validate a machine learning-based Robust and Interpretable Early Triaging Support (RIETS) system that predicts severity progression (involving any of the following events: intensive care unit admission, in-hospital death, mechanical ventilation required, or extracorporeal membrane oxygenation required) within 15 days upon hospitalization based on routinely available clinical and laboratory biomarkers. METHODS We included data from 5945 hospitalized patients with COVID-19 from 19 hospitals in South Korea collected between January 2020 and August 2022. For model development and external validation, the whole data set was partitioned into 2 independent cohorts by stratified random cluster sampling according to hospital type (general and tertiary care) and geographical location (metropolitan and nonmetropolitan). Machine learning models were trained and internally validated through a cross-validation technique on the development cohort. They were externally validated using a bootstrapped sampling technique on the external validation cohort. The best-performing model was selected primarily based on the area under the receiver operating characteristic curve (AUROC), and its robustness was evaluated using bias risk assessment. For model interpretability, we used Shapley and patient clustering methods. RESULTS Our final model, RIETS, was developed based on a deep neural network of 11 clinical and laboratory biomarkers that are readily available within the first day of hospitalization. The features predictive of severity included lactate dehydrogenase, age, absolute lymphocyte count, dyspnea, respiratory rate, diabetes mellitus, c-reactive protein, absolute neutrophil count, platelet count, white blood cell count, and saturation of peripheral oxygen. RIETS demonstrated excellent discrimination (AUROC=0.937; 95% CI 0.935-0.938) with high calibration (integrated calibration index=0.041), satisfied all the criteria of low bias risk in a risk assessment tool, and provided detailed interpretations of model parameters and patient clusters. In addition, RIETS showed potential for transportability across variant periods with its sustainable prediction on Omicron cases (AUROC=0.903, 95% CI 0.897-0.910). CONCLUSIONS RIETS was developed and validated to assist early triaging by promptly predicting the severity of hospitalized patients with COVID-19. Its high performance with low bias risk ensures considerably reliable prediction. The use of a nationwide multicenter cohort in the model development and validation implicates generalizability. The use of routinely collected features may enable wide adaptability. Interpretations of model parameters and patients can promote clinical applicability. Together, we anticipate that RIETS will facilitate the patient triaging workflow and efficient resource allocation when incorporated into a routine clinical practice.
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Affiliation(s)
- Sangwon Baek
- Medical AI Research Center, Samsung Medical Center, Seoul, Republic of Korea
- Center for Data Science, New York University, New York, NY, United States
| | - Yeon Joo Jeong
- Department of Radiology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Yun-Hyeon Kim
- Department of Radiology, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Jin Young Kim
- Department of Radiology, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
| | - Jin Hwan Kim
- Department of Radiology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Eun Young Kim
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Jae-Kwang Lim
- Department of Radiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jungok Kim
- Department of Infectious Diseases, Chungnam National University Sejong Hospital, Sejong, Republic of Korea
| | - Zero Kim
- Medical AI Research Center, Samsung Medical Center, Seoul, Republic of Korea
- Department of Data Convergence & Future Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyunga Kim
- Department of Data Convergence & Future Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Biomedical Statistics Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
- Department of Digital Health, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
| | - Myung Jin Chung
- Medical AI Research Center, Samsung Medical Center, Seoul, Republic of Korea
- Department of Data Convergence & Future Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Digital Health, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
- Department of Radiology, Samsung Medical Center, Seoul, Republic of Korea
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Yeop J, Park KH, Rasool S, Lee HM, Jeon S, Kim Y, Lee W, Kim S, Yang C, Lim B, Kim JY. Thickness Tolerance in Large-Area Organic Photovoltaics with Fluorine-Substituted Regioregular Conjugated Polymer. ACS Appl Mater Interfaces 2024; 16:704-711. [PMID: 38148320 DOI: 10.1021/acsami.3c14790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Large areas and simple processing methods are necessary for the commercialization of organic photovoltaics (OPVs). However, the efficiency drop due to the variation in thickness of OPVs limits their large-scale applications. Regioregular polymers with good crystallinity and packing properties that exhibit high charge mobility and extraction ability can help overcome these limitations. In this study, a regioregular polymer named PDBD-2FBT was synthesized. The crystallinity and packing properties of PDBD-2FBT were enhanced by a simple thermal treatment. Using PDBD-2FBT material as a donor and Y6-HU as an acceptor, we fabricated binary blend OPV devices. The devices with optimized active layer thickness achieved a power conversion efficiency (PCE) of 14.14%. A PCE of 13.18% was maintained even in thick-film conditions (400 nm), and thickness tolerance was observed. Based on the thickness tolerance, a 5-line module measuring 36 cm2 was fabricated via the bar-coating method, and a PCE of approximately 10% was achieved.
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Affiliation(s)
- Jiwoo Yeop
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Kwang Hun Park
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, South Korea
| | - Shafket Rasool
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Hye Min Lee
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, South Korea
| | - Seungju Jeon
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, South Korea
| | - Yejin Kim
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, South Korea
| | - Woojin Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Seoyoung Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Changduk Yang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Bogyu Lim
- Department of Engineering Chemistry, Chungbuk National University (CBNU), Cheongju, Chungbuk 28644, South Korea
| | - Jin Young Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
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Lee H, Lee JY, Jang H, Cho HY, Kang M, Bae SH, Kim S, Kim E, Jang J, Kim JY, Jeon YH. Discovery of proteolysis-targeting chimera targeting undruggable proteins using a covalent ligand screening approach. Eur J Med Chem 2024; 263:115929. [PMID: 37956552 DOI: 10.1016/j.ejmech.2023.115929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/22/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023]
Abstract
Targeted protein degradation (TPD) technology, such as proteolysis-targeting chimera (PROTAC), has become a new therapeutic modality. However, the degradation of undruggable proteins, such as those involved in protein-protein interactions (PPIs), using PROTAC is still limited owing to the difficulties in finding small-molecule binders of these proteins. To identify new chemical moieties that bind to the target sites of the protein of interest (POI), we conducted a site-specific and fragment-based covalent ligand screening using liquid chromatography-tandem mass spectrometry (LC-MS/MS). To apply the selected hits to the PROTAC approach, two-dimensional (2D) nuclear magnetic resonance (NMR) experiments were performed to evaluate the reversible binding of their analogs without covalent warheads. To proof the proposed approach, human mouse double minute (MDM)2 was selected as a model system since it is involved in PPIs and is known to be a degradable target protein. Western blot analysis showed that newly synthesized PROTACs, incorporated reversible analogs of screening hits, affected degradation in a dose- and time-dependent manner. This methodology makes it possible to use PROTAC technology to exploit previously undruggable proteins for TPD.
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Affiliation(s)
- Hyeonjun Lee
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, South Korea
| | - Ju Yeon Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, 28119, South Korea
| | - Hyunsoo Jang
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, South Korea
| | - Hye Young Cho
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, South Korea
| | - Minhee Kang
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, South Korea
| | - Sang Hyun Bae
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, 28119, South Korea
| | - Suin Kim
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, South Korea
| | - Eunji Kim
- Azcuris, Co., Ltd., 2511 Sejong-ro, Sejong, 30019, South Korea
| | - Jaebong Jang
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, South Korea.
| | - Jin Young Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, 28119, South Korea.
| | - Young Ho Jeon
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, South Korea; Azcuris, Co., Ltd., 2511 Sejong-ro, Sejong, 30019, South Korea.
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20
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Park SI, Cho SM, Atsumi S, Kawada M, Shibuya M, Lee JY, Kim JY, Kwon HJ. NDUFA12 as a Functional Target of the Anticancer Compound Ertredin in Human Hepatoma Cells As Revealed by Label-Free Chemical Proteomics. J Proteome Res 2024; 23:130-141. [PMID: 38104258 DOI: 10.1021/acs.jproteome.3c00471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Many attempts have been made to develop new agents that target EGFR mutants or regulate downstream factors in various cancers. Cell-based screening showed that a natural small molecule, Ertredin, inhibited the growth of EGFRvIII mutant cancer cells. Previous studies have shown that Ertredin effectively inhibits anchorage-independent 3D growth of sphere-forming cells transfected with EGFRvIII mutant cDNA. However, the underlying mechanism remains unclear. In this study, we investigated the target protein of Ertredin by combining drug affinity-responsive target stability (DARTS) assays with liquid chromatography-mass spectrometry using label-free Ertredin as a bait and HepG2 cell lysates as a proteome pool. NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12 (NDUFA12) was identified as an Ertredin-binding protein that was responsible for its biological activity. The interaction between NDUFA12 and Ertredin was validated by DARTS and cellular thermal shift assays. In addition, the genetic knockdown of the identified target, NDUFA12, was shown to suppress cell proliferation. NDUFA12 was identified as a biologically relevant target protein of Ertredin that is responsible for its antitumor activity, and these results provide insights into the role of NDUFA12 as a downstream factor in EGFRvIII mutants.
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Affiliation(s)
- Se In Park
- Chemical Genomics Leader Research Laboratory, Department of Biotechnology College of Life Science & Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Sung Min Cho
- Chemical Genomics Leader Research Laboratory, Department of Biotechnology College of Life Science & Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Sonoko Atsumi
- Laboratory of Oncology, Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku 141-0021, Tokyo, Japan
| | - Manabu Kawada
- Laboratory of Oncology, Institute of Microbial Chemistry, 3-14-23 Kamiosaki, Shinagawa-ku 141-0021, Tokyo, Japan
| | - Masabumi Shibuya
- Institute of Physiology and Medicine, Jobu University, Takasaki-shi, Gunma 370-1393, Japan
| | - Ju Yeon Lee
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Ochang 28119, Korea
- Critical Diseases Diagnostics Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Jin Young Kim
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Ochang 28119, Korea
- Critical Diseases Diagnostics Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Ho Jeong Kwon
- Chemical Genomics Leader Research Laboratory, Department of Biotechnology College of Life Science & Biotechnology, Yonsei University, Seoul 03722, Korea
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Liu G, Wang Y, Pan Y, Tian L, Choi MH, Wang L, Kim JY, Zhang J, Cheng SH, Zhang L. Hypertonicity induces mitochondrial extracellular vesicles (MEVs) that activate TNF-α and β-catenin signaling to promote adipocyte dedifferentiation. Stem Cell Res Ther 2023; 14:333. [PMID: 38115136 PMCID: PMC10731851 DOI: 10.1186/s13287-023-03558-3] [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: 05/23/2023] [Accepted: 11/02/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Recent studies demonstrated that elevated osmolarity could induce adipocyte dedifferentiation, representing an appealing procedure to generate multipotent stem cells. Here we aim to elucidate the molecular mechanisms that underlie osmotic induction of adipocyte reprogramming. METHODS To induce dedifferentiation, the 3T3-L1 or SVF adipocytes were cultured under the hypertonic pressure in 2% PEG 300 medium. Adipocyte dedifferentiation was monitored by aspect ratio measurement, Oil Red staining and qPCR to examine the morphology, lipid droplets, and specific genes of adipocytes, respectively. The osteogenic and chondrogenic re-differentiation capacities of dedifferentiated adipocytes were also examined. To investigate the mechanisms of the osmotic stress-induced dedifferentiation, extracellular vesicles (EVs) were collected from the reprograming cells, followed by proteomic and functional analyses. In addition, qPCR, ELISA, and TNF-α neutralizing antibody (20 ng/ml) was applied to examine the activation and effects of the TNF-α signaling. Furthermore, we also analyzed the Wnt signaling by assessing the activation of β-catenin and applying BML-284, an agonist of β-catenin. RESULTS Hypertonic treatment induced dedifferentiation of both 3T3-L1 and the primary stromal vascular fraction (SVF) adipocytes, characterized by morphological and functional changes. Proteomic profiling revealed that hypertonicity induced extracellular vesicles (EVs) containing mitochondrial molecules including NDUFA9 and VDAC. Functionally, the mitochondrial EVs (MEVs) stimulated TNF-α signaling that activates Wnt-β-catenin signaling and adipocyte dedifferentiation. Neutralizing TNF-α inhibited hypertonic dedifferentiation of adipocytes. In addition, direct activation of Wnt-β-catenin signaling using BML-284 could efficiently induce adipocyte dedifferentiation while circumventing the apoptotic effect of the hypertonic treatment. CONCLUSIONS Hypertonicity prompts the adipocytes to release MEVs, which in turn enhances the secretion of TNF-α as a pro-inflammatory cytokine during the stress response. Importantly, TNF-α is essential for the activation of the Wnt/β-catenin signaling that drives adipocyte dedifferentiation. A caveat of the hypertonic treatment is apoptosis, which could be circumvented by direct activation of the Wnt/β-catenin signaling using BML-284.
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Affiliation(s)
- Guopan Liu
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, China
| | - Ying Wang
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, China
| | - Yilin Pan
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, China
| | - Li Tian
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, China
| | - Ming Ho Choi
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Li Wang
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Jin Young Kim
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Jian Zhang
- Medicinal Chemistry and Bioinformatics Center, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200025, China
| | - Shuk Han Cheng
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Liang Zhang
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China.
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, China.
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22
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Song M, Kim Y, Baek DS, Kim HY, Gu DH, Li H, Cunning BV, Yang SE, Heo SH, Lee S, Kim M, Lim JS, Jeong HY, Yoo JW, Joo SH, Ruoff RS, Kim JY, Son JS. 3D microprinting of inorganic porous materials by chemical linking-induced solidification of nanocrystals. Nat Commun 2023; 14:8460. [PMID: 38123571 PMCID: PMC10733400 DOI: 10.1038/s41467-023-44145-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023] Open
Abstract
Three-dimensional (3D) microprinting is considered a next-generation manufacturing process for the production of microscale components; however, the narrow range of suitable materials, which include mainly polymers, is a critical issue that limits the application of this process to functional inorganic materials. Herein, we develop a generalised microscale 3D printing method for the production of purely inorganic nanocrystal-based porous materials. Our process is designed to solidify all-inorganic nanocrystals via immediate dispersibility control and surface linking-induced interconnection in the nonsolvent linker bath and thereby creates multibranched gel networks. The process works with various inorganic materials, including metals, semiconductors, magnets, oxides, and multi-materials, not requiring organic binders or stereolithographic equipment. Filaments with a diameter of sub-10 μm are printed into designed complex 3D microarchitectures, which exhibit full nanocrystal functionality and high specific surface areas as well as hierarchical porous structures. This approach provides the platform technology for designing functional inorganics-based porous materials.
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Affiliation(s)
- Minju Song
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Yoonkyum Kim
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Du San Baek
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Ho Young Kim
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), 14-gil 5 Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Da Hwi Gu
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Haiyang Li
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongsangbuk-do, 37673, Republic of Korea
| | - Benjamin V Cunning
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Seong Eun Yang
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Seung Hwae Heo
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongsangbuk-do, 37673, Republic of Korea
| | - Seunghyun Lee
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Minhyuk Kim
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hu Young Jeong
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jung-Woo Yoo
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Rodney S Ruoff
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Jin Young Kim
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), 14-gil 5 Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea.
| | - Jae Sung Son
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongsangbuk-do, 37673, Republic of Korea.
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23
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Ko M, Jung HY, Lee D, Jeon J, Kim J, Baek S, Lee JY, Kim JY, Kwon HJ. Inhibition of chloride intracellular channel protein 1 (CLIC1) ameliorates liver fibrosis phenotype by activating the Ca 2+-dependent Nrf2 pathway. Biomed Pharmacother 2023; 168:115776. [PMID: 37924785 DOI: 10.1016/j.biopha.2023.115776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 11/06/2023] Open
Abstract
Persistent damage to liver cells leads to liver fibrosis, which is characterized by the accumulation of scar tissue in the liver, ultimately leading to cirrhosis and serious complications. Because it is difficult to reverse cirrhosis once it has progressed, the primary focus has been on preventing the progression of liver fibrosis. However, studies on therapeutic agents for liver fibrosis are still lacking. Here, we investigated that the natural dipeptide cyclic histidine-proline (CHP, also known as diketopiperazine) shows promising potential as a therapeutic agent in models of liver injury by inhibiting the progression of fibrosis through activation of the Nrf2 pathway. To elucidate the underlying biological mechanism of CHP, we used the Cellular Thermal Shift Assay (CETSA)-LC-MS/MS, a label-free compound-based target identification platform. Chloride intracellular channel protein 1 (CLIC1) was identified as a target whose thermal stability is increased by CHP treatment. We analyzed the direct interaction of CHP with CLIC1 which revealed a potential interaction between CHP and the E228 residue of CLIC1. Biological validation experiments showed that knockdown of CLIC1 mimicked the antioxidant effect of CHP. Further investigation using a mouse model of CCl4-induced liver fibrosis in wild-type and CLIC1 KO mice revealed the critical involvement of CLIC1 in mediating the effects of CHP. Taken together, our results provide evidence that CHP exerts its anti-fibrotic effects through specific binding to CLIC1. These insights into the mechanism of action of CHP may pave the way for the development of novel therapeutic strategies for fibrosis-related diseases.
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Affiliation(s)
- Minjeong Ko
- Chemical Genomics Leader Research Lab, Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Hoe-Yune Jung
- R&D Center, NovMetaPharma Co., Ltd., Pohang 37668, Republic of Korea; School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Dohyun Lee
- R&D Center, NovMetaPharma Co., Ltd., Pohang 37668, Republic of Korea
| | - Jongsu Jeon
- R&D Center, NovMetaPharma Co., Ltd., Pohang 37668, Republic of Korea
| | - Jiho Kim
- Chemical Genomics Leader Research Lab, Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Seoyeong Baek
- R&D Center, NovMetaPharma Co., Ltd., Pohang 37668, Republic of Korea
| | - Ju Yeon Lee
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Ochang 28119, Republic of Korea; Critical Diseases Diagnostics Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Jin Young Kim
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Ochang 28119, Republic of Korea; Critical Diseases Diagnostics Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Ho Jeong Kwon
- Chemical Genomics Leader Research Lab, Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Republic of Korea.
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Park H, Yoon SJ, Nam YS, Lee JY, Lee Y, Kim JY, Lee KB. Novel H 2S sensing mechanism derived from the formation of oligomeric sulfide capping the surface of gold nanourchins. RSC Adv 2023; 13:33028-33037. [PMID: 38025876 PMCID: PMC10631460 DOI: 10.1039/d3ra05527b] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
A gold nanourchin (AuNU) probe with a novel sensing mechanism for monitoring H2S was developed as a feasible colorimetric sensor. In this study, AuNUs that are selectively responsive to H2S were fabricated in the presence of trisodium citrate and 1,4-hydroquinone using a seed-mediated approach. Upon exposure of the AuNU solution to H2S, the hydrosulfide ions (HS-) in the solution are converted into oligomeric sulfides by 1,4-hydroquinone used as a reducing agent during the synthesis of AuNUs. The oligomeric sulfides formed in the AuNU solution upon the addition of H2S were found to coat the surface of the AuNUs, introducing a blue shift in absorption accompanied by a color change in the solution from sky blue to light green. This colorimetric alteration by the capping of oligomeric sulfides on the surface of AuNUs is unique compared to well-known color change mechanisms, such as aggregation, etching, or growth of nanoparticles. The novel H2S sensing mechanism of the AuNUs was characterized using UV-Vis spectroscopy, high-resolution transmission microscopy, X-ray photoelectron spectroscopy, surface-enhanced Raman spectroscopy, secondary ion mass spectroscopy, liquid chromatography-tandem mass spectrometry, and atom probe tomography. H2S was reliably monitored with two calibration curves comprising two sections with different slopes according to the low (0.3-15 μM) and high (15.0-300 μM) concentration range using the optimized AuNU probe, and a detection limit of 0.29 μM was obtained in tap water.
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Affiliation(s)
- Hana Park
- Climate and Environmental Research Institute, Korea Institute of Science & Technology Hwarang-ro 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
| | - Su-Jin Yoon
- Climate and Environmental Research Institute, Korea Institute of Science & Technology Hwarang-ro 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Energy and Environment Technology, KIST School, University of Science and Technology Seoul 02792 Republic of Korea
| | - Yun-Sik Nam
- Advanced Analysis and Data Center, Korea Institute of Science and Technology Hwarangno 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
| | - Ji Yeong Lee
- Advanced Analysis and Data Center, Korea Institute of Science and Technology Hwarangno 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
| | - Yeonhee Lee
- Advanced Analysis and Data Center, Korea Institute of Science and Technology Hwarangno 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
| | - Jin Young Kim
- Climate and Environmental Research Institute, Korea Institute of Science & Technology Hwarang-ro 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Energy and Environment Technology, KIST School, University of Science and Technology Seoul 02792 Republic of Korea
| | - Kang-Bong Lee
- Climate and Environmental Research Institute, Korea Institute of Science & Technology Hwarang-ro 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Energy and Environment Technology, KIST School, University of Science and Technology Seoul 02792 Republic of Korea
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Lee CH, Lee HJ, Kim JY, Yoon HJ, Hur SH. Merging CT on Fluoroscopic Imaging Using the Trachea as a Reference Without Contrast. Korean Circ J 2023; 53:790-792. [PMID: 37973390 PMCID: PMC10654415 DOI: 10.4070/kcj.2023.0190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/16/2023] [Accepted: 09/13/2023] [Indexed: 11/19/2023] Open
Affiliation(s)
- Cheol Hyun Lee
- Division of Cardiology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Daegu, Korea.
| | - Hee Jeong Lee
- Division of Cardiology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Daegu, Korea
| | - Jin Young Kim
- Department of Radiology, Keimyung University Dongsan Hospital, Daegu, Korea
| | - Hyuck-Jun Yoon
- Division of Cardiology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Daegu, Korea
| | - Seung-Ho Hur
- Division of Cardiology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Daegu, Korea
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Kim JY, Kim BG, Jang W, Wang DH. In Situ Interfacial-Assembly Perovskite Quantum Dot via Marangoni and Capillary Convection Manipulation for Robust Luminescence. ACS Appl Mater Interfaces 2023; 15:49911-49919. [PMID: 37846870 DOI: 10.1021/acsami.3c12992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
In solid substrates, colloidal solutions produce irregular deposits on the surface by Marangoni flow and capillary flow during evaporation. Reportedly, perovskite quantum dots (PQDs) as a colloidal solution have irregular surfaces based on a similar principle as the coffee ring effect in QD systems when droplets evaporate from the substrate. Given that this issue is due to the direction of Marangoni and capillary flows, the substrate is tilted to change the direction of the flows. The appropriate angle is determined by controlling the angle of the substrate so that the two flows circulate similarly; this method is called "assembly-coating". Herein, we compare the PL intensity before and after the thermal evaporation of the thin films prepared by conventional and assembly-coating. Moreover, by characterizing the diode device (hole-only space charge limited current) for each coating process, the charge carrier characteristics are investigated in detail. Therefore, we suggest a facile strategy to obtain a uniform surface and thermal evaporative stability using colloidal solutions. This strategy is effective in designing surface uniformity and light-emitting layers for colloidal solution deposition and assembly.
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Affiliation(s)
- Jin Young Kim
- School of Intelligent Semiconductor Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Byung Gi Kim
- School of Intelligent Semiconductor Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Woongsik Jang
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Dong Hwan Wang
- School of Intelligent Semiconductor Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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Li Y, Lei L, Sun J, Gao Y, Wang P, Wang S, Zhang Z, Du A, Li Z, Wang Z, Kim JY, Kim H, Zhang H, Sun Y. Significant Reductions in Secondary Aerosols after the Three-Year Action Plan in Beijing Summer. Environ Sci Technol 2023; 57:15945-15955. [PMID: 37823561 DOI: 10.1021/acs.est.3c02417] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Air quality in China has continuously improved during the Three-Year Action Plan (2018-2020); however, the changes in aerosol composition, properties, and sources in Beijing summer remain poorly understood. Here, we conducted real-time measurements of aerosol composition in five summers from 2018 to 2022 along with WRF-Community Multiscale Air Quality simulations to characterize the changes in aerosol chemistry and the roles of meteorology and emission reductions. Largely different from winter, secondary inorganic aerosol and photochemical-related secondary organic aerosol (SOA) showed significant decreases by 55-67% in summer, and the most decreases occurred in 2021. Comparatively, the decreases in the primary aerosol species and gaseous precursors were comparably small. While decreased atmospheric oxidation capacity as indicated by ozone changes played an important role in changing SOA composition, the large decrease in aerosol liquid water and small increase in particle acidity were critical for nitrate changes by decreasing gas-particle partitioning substantially (∼28%). Analysis of meteorological influences demonstrated clear and similar transitions in aerosol composition and formation mechanisms at a relative humidity of 50-60% in five summers. Model simulations revealed that emission controls played the decisive role in reducing sulfate, primary OA, and anthropogenic SOA during the Three-Year Action Plan, while meteorology affected more nitrate and biogenic SOA.
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Affiliation(s)
- Yan Li
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lu Lei
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaxing Sun
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yueqi Gao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | - Peng Wang
- Department of Atmospheric and Oceanic Sciences, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China
| | - Siyu Wang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | - Zhaolei Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | - Aodong Du
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhijie Li
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zifa Wang
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jin Young Kim
- Environment, Health, and Welfare Research Center, Korea Institute of Science and Technology, Seoul 02792, South Korea
| | - Hwajin Kim
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul 08826, South Korea
| | - Hongliang Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
- Institute of Eco-Chongming (IEC), Shanghai 200062, China
| | - Yele Sun
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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Kim JY, Hyun DY, Nam D, Shin HJ, Jung J, Cho SY, Jung K, Hwang D, Lee SW, Kim JY. Proteogenomic Analysis of Human Uterine Cervical Cancer (UCC) Reveals Treatment-Resistant Subtypes of UCC. Int J Radiat Oncol Biol Phys 2023; 117:S22. [PMID: 37784455 DOI: 10.1016/j.ijrobp.2023.06.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Locally advanced uterine cervical cancer (UCC) is treated by radiotherapy with concurrent chemotherapy, but heterogenous treatment responses are frequently observed. To better optimize therapeutic options based on molecular signatures, we performed proteogenomic analysis of UCC. MATERIALS/METHODS UCC tissue and blood samples were collected from patients who underwent primary radiotherapy ± chemotherapy at the National Cancer Center (NCC) in Korea from July 2004 to March 2020. Most samples were obtained via biopsy. Genomic DNA for WES was isolated from frozen biopsy tumor tissues and peripheral blood buffy-coat of patients. Both global proteome and phosphoproteome were analyzed using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Whole exome sequencing, RNA sequencing, global proteomics and phosphoproteomics were performed using 253, 337, and 147 cervical cancer samples, respectively. Patient-derived xenograft were established using intratongue implantation using 2 primary cell lines from sub3 and sub5, and flow cytometric analysis was performed. RESULTS Fourteen significantly mutated genes (SMG) were found in our study cohort which include 5 newly identified SMGs. Mutation-phosphorylation analysis revealed association with apoptosis and actin cytoskeleton pathway. Proteogenomic analysis defined 6 molecular subtypes of UCC. Of those, 3 subtypes (i.e., Sub3, Sub5 and Sub6) were associated with treatment-resistant phenotypes. The cell-type deconvolution analysis suggested activated stroma with activation of cancer-associated fibroblast in Sub 3, while Sub5 showed low levels of activated stroma and high levels of myeloid immune cells. FACS analysis of UCC mouse models established from these 2 radio-resistant primary cell lines showed high component of PDGFRA+CAF infiltration in Sub 3, and high level of PVR+CD45+ immune cells mainly composed of polymorphonuclear myeloid-derived suppressor cells (PMN-MDSC) in Sub5. For Sub6, genes and/or protein signatures represented mucin-related processes (e.g., mucin glycosylation/sugar metabolism), which are linked to metastasis-associated Tn antigen production. CONCLUSION The proteogenomic analysis thus suggests potential targets for radiotherapy-resistant subtypes of UCC; secretory factors from activated stroma and cancer-associated fibroblast (Sub3); RHOA signaling, PVR, and PMN-MDSCs (Sub5), and keratin/chondroitin sulfate proteoglycan and Tn antigen production (Sub6). Our study shows the importance of proteogenomic analysis in unveiling the subtype specific molecular pathways of UCC that are beyond reach by genomic data alone. The validity of our molecular pathway and cellular signatures linking these pathways should be further validated through detailed functional experiments and in larger UCC cohorts.
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Affiliation(s)
- J Y Kim
- National Cancer Center, Goyang, Korea, Republic of (South) Korea
| | - D Y Hyun
- School of Biological Sciences, Seoul National University, Seoul, Korea, Republic of (South) Korea
| | - D Nam
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul, Korea, Republic of (South) Korea
| | - H J Shin
- Research Institute and Hospital, National Cancer Center, Korea, Goyang, Korea, Republic of (South) Korea
| | - J Jung
- Department of Anatomy and Cell Biology and Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S Y Cho
- Research Institute and Hospital, National Cancer Center, Korea, Goyang-si, Korea, Republic of (South) Korea
| | - K Jung
- Department of Anatomy and Cell Biology and Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - D Hwang
- School of Biological Sciences, Seoul National University, Seoul, Korea, Republic of (South) Korea
| | - S W Lee
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul, Korea, Republic of (South) Korea
| | - J Y Kim
- Research Institute and Hospital, National Cancer Center, Korea, Goyang-si, Korea, Republic of (South) Korea
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Kim H, Yang YJ, Han K, Kim PK, Choi BW, Kim JY, Suh YJ. Validation of a deep learning-based software for automated analysis of T2 mapping in cardiac magnetic resonance imaging. Quant Imaging Med Surg 2023; 13:6750-6760. [PMID: 37869306 PMCID: PMC10585511 DOI: 10.21037/qims-23-375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 08/01/2023] [Indexed: 10/24/2023]
Abstract
Background The reliability and diagnostic performance of deep learning (DL)-based automated T2 measurements on T2 map of 3.0-T cardiac magnetic resonance imaging (MRI) using multi-institutional datasets have not been investigated. We aimed to evaluate the performance of a DL-based software for measuring automated T2 values from 3.0-T cardiac MRI obtained at two centers. Methods Eighty-three subjects were retrospectively enrolled from two centers (42 healthy subjects and 41 patients with myocarditis) to validate a commercial DL-based software that was trained to segment the left ventricular myocardium and measure T2 values on T2 mapping sequences. Manual reference T2 values by two experienced radiologists and those calculated by the DL-based software were obtained. The segmentation performance of the DL-based software and the non-inferiority of automated T2 values were assessed compared with the manual reference standard per segment level. The software's performance in detecting elevated T2 values was assessed by calculating the sensitivity, specificity, and accuracy per segment. Results The average Dice similarity coefficient for segmentation of myocardium on T2 maps was 0.844. The automated T2 values were non-inferior to the manual reference T2 values on a per-segment analysis (45.35 vs. 44.32 ms). The DL-based software exhibited good performance (sensitivity: 83.6-92.8%; specificity: 82.5-92.0%; accuracy: 82.7-92.2%) in detecting elevated T2 values. Conclusions The DL-based software for automated T2 map analysis yields non-inferior measurements at the per-segment level and good performance for detecting myocardial segments with elevated T2 values compared with manual analysis.
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Affiliation(s)
- Hwan Kim
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Korea
| | | | - Kyunghwa Han
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Korea
| | | | - Byoung Wook Choi
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Korea
- Phantomics Co., Ltd., Seoul, Korea
| | - Jin Young Kim
- Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea
| | - Young Joo Suh
- Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Korea
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30
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Kim JY, Koo B, Lim SY, Cha HH, Kim MJ, Chong YP, Choi SH, Lee SO, Kim YS, Shin Y, Kim SH. A non-invasive, sensitive assay for active TB: combined cell-free DNA detection and FluoroSpot assays. Int J Tuberc Lung Dis 2023; 27:790-792. [PMID: 37749833 PMCID: PMC10519393 DOI: 10.5588/ijtld.23.0180] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/18/2023] [Indexed: 09/27/2023] Open
Affiliation(s)
- J Y Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - B Koo
- Department of Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - S Y Lim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - H H Cha
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - M J Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Y P Chong
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - S-H Choi
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - S-O Lee
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Y S Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Y Shin
- Department of Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - S-H Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul
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31
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Kim JY, Park S, Kim EO, Chang E, Bae S, Kim MJ, Chong YP, Choi SH, Lee SO, Kim YS, Jung J, Kim SH. The seasonality of carbapenemase-producing Enterobacterales in South Korea. J Hosp Infect 2023; 140:87-89. [PMID: 37506769 DOI: 10.1016/j.jhin.2023.07.010] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023]
Affiliation(s)
- J Y Kim
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - S Park
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - E O Kim
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - E Chang
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea
| | - S Bae
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - M J Kim
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y P Chong
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S-H Choi
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S-O Lee
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J Jung
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea; Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - S-H Kim
- Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea; Departments of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Kim JY. Imaging Marker for Acute Kidney Dysfunction in Patients With Heart Failure. J Cardiovasc Imaging 2023; 31:178-179. [PMID: 37901995 PMCID: PMC10622637 DOI: 10.4250/jcvi.2023.0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 10/31/2023] Open
Affiliation(s)
- Jin Young Kim
- Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.
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Kim SY, Shin DW, Hyun J, Kwon NH, Cheong JC, Paeng KJ, Lee J, Kim JY. Uncertainty Evaluation for the Quantification of Urinary Amphetamine and 4-Hydroxyamphetamine Using Liquid Chromatography-Tandem Mass Spectrometry: Comparison of the Guide to the Expression of Uncertainty in Measurement Approach and the Monte Carlo Method with R. Molecules 2023; 28:6803. [PMID: 37836646 PMCID: PMC10574584 DOI: 10.3390/molecules28196803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Estimating the measurement uncertainty (MU) is becoming increasingly mandatory in analytical toxicology. This study evaluates the uncertainty in the quantitative determination of urinary amphetamine (AP) and 4-hydroxyamphetamine (4HA) using a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method based on the dilute-and-shoot approach. Urine sample dilution, preparation of calibrators, calibration curve, and method repeatability were identified as the sources of uncertainty. To evaluate the MU, the Guide to the Expression of Uncertainty in Measurement (GUM) approach and the Monte Carlo method (MCM) were compared using the R programming language. The MCM afforded a smaller coverage interval for both AP (94.83, 104.74) and 4HA (10.52, 12.14) than that produced by the GUM (AP (92.06, 107.41) and 4HA (10.21, 12.45)). The GUM approach offers an underestimated coverage interval for Type A evaluation, whereas the MCM provides an exact coverage interval under an abnormal probability distribution of the measurand. The MCM is useful in complex settings where the measurand is combined with numerous distributions because it is generated from the uncertainties of input quantities based on the propagation of the distribution. Therefore, the MCM is more practical than the GUM for evaluating the MU of urinary AP and 4HA concentrations using LC-MS/MS.
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Affiliation(s)
- Seon Yeong Kim
- Forensic Genetics & Chemistry Division, Supreme Prosecutors’ Office, Seoul 06590, Republic of Korea
| | - Dong Won Shin
- Forensic Genetics & Chemistry Division, Supreme Prosecutors’ Office, Seoul 06590, Republic of Korea
| | - Jihye Hyun
- Department of Applied Statistics, Chung-Ang University, Seoul 06590, Republic of Korea;
| | - Nam Hee Kwon
- Forensic Genetics & Chemistry Division, Supreme Prosecutors’ Office, Seoul 06590, Republic of Korea
| | - Jae Chul Cheong
- Forensic Genetics & Chemistry Division, Supreme Prosecutors’ Office, Seoul 06590, Republic of Korea
| | - Ki-Jung Paeng
- Department of Chemistry, Yonsei University, Wonju 26493, Republic of Korea
| | - Jooyoung Lee
- Department of Applied Statistics, Chung-Ang University, Seoul 06590, Republic of Korea;
| | - Jin Young Kim
- Forensic Genetics & Chemistry Division, Supreme Prosecutors’ Office, Seoul 06590, Republic of Korea
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Cho DK, Yan B, Park SJ, Yoon YS, Lim HW, Hwang SK, Park IJ, Kim JY. Hierarchical Heterogeneous NiFe Layered Double Hydroxides for Efficient Solar-Powered Water Oxidation. ACS Appl Mater Interfaces 2023; 15:43933-43941. [PMID: 37675887 DOI: 10.1021/acsami.3c10075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Highly active, stable, and low-cost oxygen evolution reaction (OER) electrocatalysts are urgently needed for the realization of large-scale industrial hydrogen production via water electrolysis. Layered double hydroxides (LDHs) stand out as one of the most promising nonprecious electrocatalysts worth pursuing. Here, a hierarchical heterogeneous Ni2+Fe3+@Ni2+Fe2+ LDH was successfully synthesized via a sequential electrodeposition technique using separate electrolytes containing iron precursors with different valence states (Fe2+, Fe3+). The underlying highly crystalline Ni2+Fe2+ LDH nanosheet array provides a large surface for the catalytically more active Ni2+Fe3+ LDH overlayer with low crystallinity. The resulting Ni2+Fe3+@Ni2+Fe2+ LDH demonstrates excellent OER activity with overpotentials of 218 and 265 mV to reach current densities of 10 and 100 mA cm-2, respectively, as well as good long-term stability for 30 h even at a high current density of 500 mA cm-2. In an overall water splitting, an electrolyzer using an electrocatalyst of Sn4P3/CoP2 as a cathode requires only a cell voltage of 1.55 V at 10 mA cm-2. Furthermore, the solar-powered overall water splitting system consisting of our electrolyzer and a perovskite/Si tandem solar cell exhibits a high solar-to-hydrogen conversion efficiency of 15.3%.
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Affiliation(s)
- Deok Ki Cho
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Bingyi Yan
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
- SNU Materials Education/Research Division for Creative Global Leaders, Seoul National University, Seoul 08826, Republic of Korea
| | - So Jeong Park
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Young Seon Yoon
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyun Woo Lim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Sun Kyung Hwang
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Ik Jae Park
- Department of Applied Physics Engineering, Sookmyung Women's University, Yongsan-gu, Seoul 04310, Republic of Korea
| | - Jin Young Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
- Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
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Ahn BC, Park C, Lee SJ, Hong S, Hwang JE, Kwon K, Kim JY, Kim KH, Kim HY, Lee GK, Lee Y, Han JY. Nivolumab after Induction Chemotherapy in Previously Treated Non-Small-Cell Lung Cancer Patients with Low PD-L1 Expression. Cancers (Basel) 2023; 15:4460. [PMID: 37760429 PMCID: PMC10526182 DOI: 10.3390/cancers15184460] [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: 08/08/2023] [Revised: 08/30/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
This study aimed to investigate whether cyclophosphamide (C) and adriamycin (A) induction therapy (IT) prior to nivolumab could enhance the efficacy of nivolumab in previously treated patients with non-squamous (NSQ) non-small-cell lung cancer (NSCLC) with less than 10% programmed death-ligand 1 (PD-L1) expression. Twenty-two enrolled patients received four cycles of CA-IT every 3 weeks. Nivolumab was given 360 mg every 3 weeks from the second cycle and 480 mg every 4 weeks after four cycles of CA-IT. The median progression-free survival (PFS) and overall survival (OS) were 2.4 months and 11.6 months, respectively. Fluorescence-activated cell sorting revealed the lowest ratio of myeloid-derived suppressor cells (MDSCs) to CD8+T-cells in the responders. Proteomic analysis identified a consistent upregulation of extracellular matrix-receptor interactions and phagosome pathways in the responders. Among the differentially expressed proteins, the transferrin receptor protein (TFRC) was higher in the responders before treatment (fold change > 1.2). TFRC validation with an independent cohort showed the prognostic significance of either OS or PFS in patients with low PD-L1 expression. In summary, CA-IT did not improve nivolumab efficacy in NSQ-NSCLCs with low PD-L1 expression; however, it induced decreasing MDSC, resulting in a durable response. Higher baseline TFRC levels predicted a favorable response to nivolumab in NSCLC with low PD-L1 expression.
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Affiliation(s)
- Beung-Chul Ahn
- Center for Lung Cancer, Division of Hematology and Oncology, Department of Internal Medicine, Research Institute and Hospital, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (B.-C.A.); (K.K.)
| | - Charny Park
- Research Institute, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (C.P.); (S.-J.L.); (J.-E.H.); (J.Y.K.)
| | - Sang-Jin Lee
- Research Institute, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (C.P.); (S.-J.L.); (J.-E.H.); (J.Y.K.)
| | - Sehwa Hong
- Research Institute, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (C.P.); (S.-J.L.); (J.-E.H.); (J.Y.K.)
| | - Ji-Eun Hwang
- Research Institute, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (C.P.); (S.-J.L.); (J.-E.H.); (J.Y.K.)
| | - Kyoungsuk Kwon
- Center for Lung Cancer, Division of Hematology and Oncology, Department of Internal Medicine, Research Institute and Hospital, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (B.-C.A.); (K.K.)
| | - Jin Young Kim
- Research Institute, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (C.P.); (S.-J.L.); (J.-E.H.); (J.Y.K.)
| | - Kyung-Hee Kim
- Proteomics Core Facility, Research Core Center, Research Institute and Hospital, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea
| | - Hyae Young Kim
- Department of Radiology, Research Institute and Hospital, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea;
| | - Geon Kook Lee
- Department of Pathology, Research Institute and Hospital, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea;
| | - Youngjoo Lee
- Center for Lung Cancer, Division of Hematology and Oncology, Department of Internal Medicine, Research Institute and Hospital, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (B.-C.A.); (K.K.)
| | - Ji-Youn Han
- Center for Lung Cancer, Division of Hematology and Oncology, Department of Internal Medicine, Research Institute and Hospital, National Cancer Center, Goyang-si 10408, Gyeonggi-do, Republic of Korea; (B.-C.A.); (K.K.)
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36
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Lee GR, Kim J, Hong D, Kim YJ, Jang H, Han HJ, Hwang CK, Kim D, Kim JY, Jung YS. Efficient and sustainable water electrolysis achieved by excess electron reservoir enabling charge replenishment to catalysts. Nat Commun 2023; 14:5402. [PMID: 37669945 PMCID: PMC10480199 DOI: 10.1038/s41467-023-41102-2] [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: 03/02/2023] [Accepted: 08/18/2023] [Indexed: 09/07/2023] Open
Abstract
Suppressing the oxidation of active-Ir(III) in IrOx catalysts is highly desirable to realize an efficient and durable oxygen evolution reaction in water electrolysis. Although charge replenishment from supports can be effective in preventing the oxidation of IrOx catalysts, most supports have inherently limited charge transfer capability. Here, we demonstrate that an excess electron reservoir, which is a charged oxygen species, incorporated in antimony-doped tin oxide supports can effectively control the Ir oxidation states by boosting the charge donations to IrOx catalysts. Both computational and experimental analyses reveal that the promoted charge transfer driven by excess electron reservoir is the key parameter for stabilizing the active-Ir(III) in IrOx catalysts. When used in a polymer electrolyte membrane water electrolyzer, Ir catalyst on excess electron reservoir incorporated support exhibited 75 times higher mass activity than commercial nanoparticle-based catalysts and outstanding long-term stability for 250 h with a marginal degradation under a water-splitting current of 1 A cm-2. Moreover, Ir-specific power (74.8 kW g-1) indicates its remarkable potential for realizing gigawatt-scale H2 production for the first time.
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Affiliation(s)
- Gyu Rac Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jun Kim
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology, 14-gil 5, Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Doosun Hong
- Computational Science Research Center, Korea Institute of Science and Technology, 14-gil 5, Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Ye Ji Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Hanhwi Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyeuk Jin Han
- Department of Environment and Energy Engineering, Sungshin Women's University, 55, Dobong-ro 76ga-gil, Gangbuk-gu, Seoul, 01133, Republic of Korea
| | - Chang-Kyu Hwang
- Materials Architecturing Research Center, Korea Institute of Science and Technology (KIST), 14-gil 5, Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Donghun Kim
- Computational Science Research Center, Korea Institute of Science and Technology, 14-gil 5, Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea.
| | - Jin Young Kim
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology, 14-gil 5, Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea.
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Kim J, Hong YJ, Han K, Kim JY, Lee HJ, Hur J, Kim YJ, Choi BW. Chemotherapy-Related Cardiac Dysfunction: Quantitative Cardiac Magnetic Resonance Image Parameters and Their Prognostic Implications. Korean J Radiol 2023; 24:838-848. [PMID: 37634639 PMCID: PMC10462900 DOI: 10.3348/kjr.2023.0095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 06/09/2023] [Accepted: 06/29/2023] [Indexed: 08/29/2023] Open
Abstract
OBJECTIVE To quantitatively analyze the cardiac magnetic resonance imaging (CMR) characteristics of chemotherapy-related cardiac dysfunction (CTRCD) and explore their prognostic value for major adverse cardiovascular events (MACE). MATERIALS AND METHODS A total of 145 patients (male:female = 76:69, mean age = 63.0 years) with cancer and heart failure who underwent CMR between January 2015 and January 2021 were included. CMR was performed using a 3T scanner (Siemens). Biventricular functions, native T1 T2, extracellular volume fraction (ECV) values, and late gadolinium enhancement (LGE) of the left ventricle (LV) were compared between those with and without CTRCD. These were compared between patients with mild-to-moderate CTRCD and those with severe CTRCD. Cox proportional hazard regression analysis was used to evaluate the association between the CMR parameters and MACE occurrence during follow-up in the CTRCD patients. RESULTS Among 145 patients, 61 had CTRCD and 84 did not have CTRCD. Native T1, ECV, and T2 were significantly higher in the CTRCD group (1336.9 ms, 32.5%, and 44.7 ms, respectively) than those in the non-CTRCD group (1303.4 ms, 30.5%, and 42.0 ms, respectively; P = 0.013, 0.010, and < 0.001, respectively). They were not significantly different between patients with mild-to-moderate and severe CTRCD. Indexed LV mass was significantly smaller in the CTRCD group (65.0 g/m² vs. 78.9 g/m²; P < 0.001). According to the multivariable Cox regression analysis, T2 (hazard ratio [HR]: 1.14, 95% confidence interval [CI]: 1.01-1.27; P = 0.028) and quantified LGE (HR: 1.07, 95% CI: 1.01-1.13; P = 0.021) were independently associated with MACE in the CTRCD patients. CONCLUSION Quantitative parameters from CMR have the potential to evaluate myocardial changes in CTRCD. Increased T2 with reduced LV mass was demonstrated in CTRCD patients even before the development of severe cardiac dysfunction. T2 and quantified LGE may be independent prognostic factors for MACE in patients with CTRCD.
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Affiliation(s)
- Jinhee Kim
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoo Jin Hong
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Kyunghwa Han
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Young Kim
- Department of Radiology, Dongsan Medical Center, Keimyung University College of Medicine, Daegu, Republic of Korea
| | - Hye-Jeong Lee
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Hur
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Jin Kim
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byoung Wook Choi
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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Yang W, Jo SH, Tang Y, Park J, Ji SG, Cho SH, Hong Y, Kim DH, Park J, Yoon E, Zhou H, Woo SJ, Kim H, Yun HJ, Lee YS, Kim JY, Hu B, Lee TW. Overcoming Charge Confinement in Perovskite Nanocrystal Solar Cells. Adv Mater 2023; 35:e2304533. [PMID: 37390092 DOI: 10.1002/adma.202304533] [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: 05/14/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/02/2023]
Abstract
The small nanoparticle size and long-chain ligands in colloidal metal halide perovskite quantum dots (PeQDs) cause charge confinement, which impedes exciton dissociation and carrier extraction in PeQD solar cells, so they have low short-circuit current density Jsc , which impedes further increases in their power conversion efficiency (PCE). Here, a re-assembling process (RP) is developed for perovskite nanocrystalline (PeNC) films made of colloidal perovskite nanocrystals to increase Jsc in PeNC solar cells. The RP of PeNC films increases their crystallite size and eliminates long-chain ligands, and thereby overcomes the charge confinement in PeNC films. These changes facilitate exciton dissociation and increase carrier extraction in PeNC solar cells. By use of this method, the gradient-bandgap PeNC solar cells achieve a Jsc = 19.30 mA cm-2 without compromising the photovoltage, and yield a high PCE of 16.46% with negligible hysteresis and good stability. This work provides a new strategy to process PeNC films and pave the way for high performance PeNC optoelectronic devices.
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Affiliation(s)
- Wenqiang Yang
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seung-Hyeon Jo
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yipeng Tang
- Department of Materials Science and Engineering, University of Tennessee, 1001-1099 Estabrook Rd, Knoxville, TN, 37996, USA
| | - Jumi Park
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemoon-gu, Seoul, 03722, Republic of Korea
| | - Su Geun Ji
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seong Ho Cho
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yongseok Hong
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemoon-gu, Seoul, 03722, Republic of Korea
| | - Dong-Hyeok Kim
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jinwoo Park
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Eojin Yoon
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Huanyu Zhou
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seung-Je Woo
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hyeran Kim
- Advanced Nano Research Group, Korea Basic Science Institute (KBSI), 169-148 Gwahak-ro, Yuseong-gu, Daejeon, 34126, Republic of Korea
| | - Hyung Joong Yun
- Advanced Nano Research Group, Korea Basic Science Institute (KBSI), 169-148 Gwahak-ro, Yuseong-gu, Daejeon, 34126, Republic of Korea
| | - Yun Seog Lee
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jin Young Kim
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Bin Hu
- Department of Materials Science and Engineering, University of Tennessee, 1001-1099 Estabrook Rd, Knoxville, TN, 37996, USA
| | - Tae-Woo Lee
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- SN Display Co. Ltd., 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Engineering Research, Soft Foundry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
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Yoon SH, Ham SY, Nam BD, Chae KJ, Lee D, Yoo JY, Bak SH, Kim JY, Kim JH, Kim KB, Jung JI, Lim JK, Lee JE, Chung MJ, Lee YK, Kim YS, Jo JE, Lee SM, Kwon W, Park CM, Kim YH, Jeong YJ. Erratum: Correction of Affiliations in the Article "Establishment of a Nationwide Korean Imaging Cohort of Coronavirus Disease 2019". J Korean Med Sci 2023; 38:e298. [PMID: 37644687 PMCID: PMC10462478 DOI: 10.3346/jkms.2023.38.e298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/31/2023] Open
Abstract
This corrects the article on p. e413 in vol. 35, PMID: 33258333.
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Affiliation(s)
- Soon Ho Yoon
- Department of Radiology, Seoul National University Hospital, Seoul National College of Medicine, Seoul, Korea
| | - Soo-Youn Ham
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University, School of Medicine, Seoul, Korea
| | - Bo Da Nam
- Department of Radiology, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Kum Ju Chae
- Department of Radiology, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea
| | - Dabee Lee
- Department of Radiology, Dankook University Hospital, Cheonan, Korea
| | - Jin Young Yoo
- Department of Radiology, Chungbuk National University Hospital, Cheongju, Korea
| | - So Hyeon Bak
- Department of Radiology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Jin Young Kim
- Department of Radiology, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Jin Hwan Kim
- Department of Radiology, Chungnam National University Hospital, College of Medicine, Daejeon, Korea
| | - Ki Beom Kim
- Department of Radiology, Daegu Fatima Hospital, Daegu, Korea
| | - Jung Im Jung
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae-Kwang Lim
- Department of Radiology, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Jong Eun Lee
- Department of Radiology, Chonnam National University Hospital, Gwangju, Korea
| | - Myung Jin Chung
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | | | - Young Seon Kim
- Department of Radiology, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, Korea
| | - Ji Eun Jo
- Department of Radiology, Busan Medical Center, Busan, Korea
| | - Sang Min Lee
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Woocheol Kwon
- Department of Radiology, Ewha Womans University Seoul Hospital, Seoul, Korea
| | - Chang Min Park
- Department of Radiology, Seoul National University Hospital, Seoul National College of Medicine, Seoul, Korea
| | - Yun-Hyeon Kim
- Department of Radiology, Chonnam National University Hospital, Gwangju, Korea
| | - Yeon Joo Jeong
- Department of Radiology, Pusan National University Hospital, Pusan National University School of Medicine and Biomedical Research Institute, Busan, Korea.
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Girma HG, Ryu KY, Tang X, Ryu GS, Wang R, Kim Y, Choi JO, Lee HM, Jeon S, Jung SH, Park JM, Jung YJ, Kim JY, Hwang DH, Noh YY, Lim B, Kong H, Kim SH. Large-Area Printed Oxide Film Sensors Enabling Ultrasensitive and Dual Electrical/Colorimetric Detection of Hydrogen at Room Temperature. ACS Sens 2023; 8:3004-3013. [PMID: 37487692 DOI: 10.1021/acssensors.3c00469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Commercial hydrogen (H2) sensors operate at high temperatures, which increases power consumption and poses a safety risk owing to the flammable nature of H2. Here, a polymer-noble metal-metal oxide film is fabricated using the spin-coating and printing methods to realize a highly sensitive, low-voltage operation, wide-operating-concentration, and near-monoselective H2 sensor at room temperature. The H2 sensors with an optimized thickness of Pd nanoparticles and SnO2 showed an extremely high response of 16,623 with a response time of 6 s and a recovery time of 5 s at room temperature and 2% H2. At the same time, printed flexible sensors demonstrate excellent sensitivity, with a response of 2300 at 2% H2. The excellent sensing performance at room temperature is due to the optimal SnO2 thickness, corresponding to the Debye length and the oxygen and H2 spillover caused by the optimized coverage of the Pd catalyst. Furthermore, multistructures of WO3 and SnO2 films are used to fabricate a new type of dual-signal sensor, which demonstrated simultaneous conductance and transmittance, i.e., color change. This work provides an effective strategy to develop robust, flexible, transparent, and long-lasting H2 sensors through large-area printing processes based on polymer-metal-metal oxide nanostructures.
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Affiliation(s)
- Henok Getachew Girma
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
- KRICT School, Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Ka Yeon Ryu
- Department of Chemistry and Research Institute of Nature Science, Gyeongsang National University, Jinju 52828, Gyeongnam, Republic of Korea
| | - Xiaowu Tang
- School of Chemical Engineering Yeungnam University, Gyeongsan 38541, Republic of Korea
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China
| | - Gi-Seong Ryu
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Gyeongbuk, Republic of Korea
| | - Rixuan Wang
- School of Chemical Engineering Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Yejin Kim
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
| | - Jae Ook Choi
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Hye Min Lee
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Seungju Jeon
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Seo-Hyun Jung
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
| | - Jong Mok Park
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
| | - Yu Jin Jung
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
| | - Jin Young Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Do-Hoon Hwang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Yong-Young Noh
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Gyeongbuk, Republic of Korea
| | - Bogyu Lim
- Research Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44412, Republic of Korea
- Department of Engineering Chemistry, Chungbuk National University, Cheongju 28644, Chungbuk, Republic of Korea
| | - Hoyoul Kong
- Department of Chemistry and Research Institute of Nature Science, Gyeongsang National University, Jinju 52828, Gyeongnam, Republic of Korea
| | - Se Hyun Kim
- School of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
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Lee HW, Yang HJ, Kim H, Kim UH, Kim DH, Yoon SH, Ham SY, Nam BD, Chae KJ, Lee D, Yoo JY, Bak SH, Kim JY, Kim JH, Kim KB, Jung JI, Lim JK, Lee JE, Chung MJ, Lee YK, Kim YS, Lee SM, Kwon W, Park CM, Kim YH, Jeong YJ, Jin KN, Goo JM. Correction: Deep Learning With Chest Radiographs for Making Prognoses in Patients With COVID-19: Retrospective Cohort Study. J Med Internet Res 2023; 25:e51951. [PMID: 37611252 PMCID: PMC10448970 DOI: 10.2196/51951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 08/17/2023] [Indexed: 08/25/2023] Open
Abstract
[This corrects the article DOI: 10.2196/42717.].
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Affiliation(s)
- Hyun Woo Lee
- Division of Respiratory and Critical CareDepartment of Internal MedicineSeoul Metropolitan Government-Seoul National University Boramae Medical CenterSeoulRepublic of Korea
- College of MedicineSeoul National UniversitySeoulRepublic of Korea
| | - Hyun Jun Yang
- College of MedicineSeoul National UniversitySeoulRepublic of Korea
| | - Hyungjin Kim
- College of MedicineSeoul National UniversitySeoulRepublic of Korea
- Department of RadiologySeoul National University Medical Research CenterSeoulRepublic of Korea
| | - Ue-Hwan Kim
- AI Graduate SchoolGwangju Institute of Science and TechnologyGwangjuRepublic of Korea
| | - Dong Hyun Kim
- College of MedicineSeoul National UniversitySeoulRepublic of Korea
- Department of RadiologySeoul Metropolitan Government-Seoul National University Boramae Medical CenterSeoulRepublic of Korea
| | - Soon Ho Yoon
- College of MedicineSeoul National UniversitySeoulRepublic of Korea
- Department of RadiologySeoul National University Medical Research CenterSeoulRepublic of Korea
| | - Soo-Youn Ham
- Department of RadiologyKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Bo Da Nam
- Department of RadiologySoonchunhyang University Seoul HospitalSoonchunhyang University College of MedicineSeoulRepublic of Korea
| | - Kum Ju Chae
- Department of RadiologyResearch Institute of Clinical MedicineJeonbuk National University-Biomedical Research Institute of Jeonbuk National University HospitalJeonjuRepublic of Korea
| | - Dabee Lee
- Department of RadiologyDankook University HospitalCheonanRepublic of Korea
| | - Jin Young Yoo
- Department of RadiologyChungbuk National University HospitalCheongjuRepublic of Korea
| | - So Hyeon Bak
- Department of RadiologyKangwon National University HospitalKangwon National University School of MedicineChuncheonRepublic of Korea
| | - Jin Young Kim
- Department of RadiologyKeimyung University Dongsan HospitalKeimyung University School of MedicineDaeguRepublic of Korea
| | - Jin Hwan Kim
- Department of RadiologyChungnam National University HospitalCollege of MedicineDaejeonRepublic of Korea
| | - Ki Beom Kim
- Department of RadiologyDaegu Fatima HospitalDaeguRepublic of Korea
| | - Jung Im Jung
- Department of RadiologySeoul St. Mary's HospitalCollege of Medicine, The Catholic University of KoreaSeoulRepublic of Korea
| | - Jae-Kwang Lim
- Department of RadiologyKyungpook National University HospitalSchool of Medicine, Kyungpook National UniversityDaeguRepublic of Korea
| | - Jong Eun Lee
- Department of RadiologyChonnam National University HospitalGwangjuRepublic of Korea
| | - Myung Jin Chung
- Department of RadiologySamsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Young Kyung Lee
- Department of RadiologySeoul Medical CenterSeoulRepublic of Korea
| | - Young Seon Kim
- Department of RadiologyYeungnam University HospitalYeungnam University College of MedicineDaeguRepublic of Korea
| | - Sang Min Lee
- Department of Radiology and Research Institute of RadiologyAsan Medical CenterUniversity of Ulsan College of MedicineSeoulRepublic of Korea
| | - Woocheol Kwon
- Department of RadiologyEwha Womans University Seoul HospitalSeoulRepublic of Korea
| | - Chang Min Park
- College of MedicineSeoul National UniversitySeoulRepublic of Korea
- Department of RadiologySeoul National University Medical Research CenterSeoulRepublic of Korea
| | - Yun-Hyeon Kim
- Department of RadiologyChonnam National University HospitalGwangjuRepublic of Korea
| | - Yeon Joo Jeong
- Department of RadiologyPusan National University HospitalPusan National University School of Medicine and Biomedical Research InstituteBusanRepublic of Korea
| | - Kwang Nam Jin
- College of MedicineSeoul National UniversitySeoulRepublic of Korea
- Department of RadiologySeoul Metropolitan Government-Seoul National University Boramae Medical CenterSeoulRepublic of Korea
| | - Jin Mo Goo
- College of MedicineSeoul National UniversitySeoulRepublic of Korea
- Department of RadiologySeoul National University Medical Research CenterSeoulRepublic of Korea
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Park G, Jang WE, Kim S, Gonzales EL, Ji J, Choi S, Kim Y, Park JH, Mohammad HB, Bang G, Kang M, Kim S, Jeon SJ, Kim JY, Kim KP, Shin CY, An JY, Kim MS, Lee YS. Dysregulation of the Wnt/β-catenin signaling pathway via Rnf146 upregulation in a VPA-induced mouse model of autism spectrum disorder. Exp Mol Med 2023; 55:1783-1794. [PMID: 37524878 PMCID: PMC10474298 DOI: 10.1038/s12276-023-01065-2] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/15/2023] [Accepted: 05/29/2023] [Indexed: 08/02/2023] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder associated with impaired social behavior and communication, repetitive behaviors, and restricted interests. In addition to genetic factors, environmental factors such as prenatal drug exposure contribute to the development of ASD. However, how those prenatal factors induce behavioral deficits in the adult stage is not clear. To elucidate ASD pathogenesis at the molecular level, we performed a high-resolution mass spectrometry-based quantitative proteomic analysis on the prefrontal cortex (PFC) of mice exposed to valproic acid (VPA) in utero, a widely used animal model of ASD. Differentially expressed proteins (DEPs) in VPA-exposed mice showed significant overlap with ASD risk genes, including differentially expressed genes from the postmortem cortex of ASD patients. Functional annotations of the DEPs revealed significant enrichment in the Wnt/β-catenin signaling pathway, which is dysregulated by the upregulation of Rnf146 in VPA-exposed mice. Consistently, overexpressing Rnf146 in the PFC impaired social behaviors and altered the Wnt signaling pathway in adult mice. Furthermore, Rnf146-overexpressing PFC neurons showed increased excitatory synaptic transmission, which may underlie impaired social behavior. These results demonstrate that Rnf146 is critical for social behavior and that dysregulation of Rnf146 underlies social deficits in VPA-exposed mice.
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Affiliation(s)
- Gaeun Park
- Department of Biomedical Science, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
- Department of Physiology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Wooyoung Eric Jang
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient Materials, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Seoyeon Kim
- Department of Integrated Biomedical and Life Science, Korea University, Seoul, 02841, Republic of Korea
- BK21FOUR R&E Center for Learning Health Systems, Korea University, Seoul, 02841, Republic of Korea
| | - Edson Luck Gonzales
- School of Medicine and Center for Neuroscience Research, Konkuk University, Seoul, 05029, Republic of Korea
| | - Jungeun Ji
- Department of Integrated Biomedical and Life Science, Korea University, Seoul, 02841, Republic of Korea
- BK21FOUR R&E Center for Learning Health Systems, Korea University, Seoul, 02841, Republic of Korea
| | - Seunghwan Choi
- School of Biosystem and Biomedical Science, College of Health Science, Korea University, Seoul, 02841, Republic of Korea
| | - Yujin Kim
- Department of Integrated Biomedical and Life Science, Korea University, Seoul, 02841, Republic of Korea
- BK21FOUR R&E Center for Learning Health Systems, Korea University, Seoul, 02841, Republic of Korea
| | - Ji Hwan Park
- Department of New Biology, DGIST, Daegu, 42988, Republic of Korea
| | | | - Geul Bang
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea
| | - Minkyung Kang
- Department of Biomedical Science, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
- Department of Physiology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Soobin Kim
- Department of Biomedical Science, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
- Department of Physiology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Se Jin Jeon
- School of Medicine and Center for Neuroscience Research, Konkuk University, Seoul, 05029, Republic of Korea
| | - Jin Young Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea
| | - Kwang Pyo Kim
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient Materials, Kyung Hee University, Yongin, 17104, Republic of Korea
- Department of Biomedical Science and Technology, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Chan Young Shin
- School of Medicine and Center for Neuroscience Research, Konkuk University, Seoul, 05029, Republic of Korea.
| | - Joon-Yong An
- Department of Integrated Biomedical and Life Science, Korea University, Seoul, 02841, Republic of Korea.
- BK21FOUR R&E Center for Learning Health Systems, Korea University, Seoul, 02841, Republic of Korea.
- School of Biosystem and Biomedical Science, College of Health Science, Korea University, Seoul, 02841, Republic of Korea.
| | - Min-Sik Kim
- Department of New Biology, DGIST, Daegu, 42988, Republic of Korea.
- New Biology Research Center, DGIST, Daegu, 42988, Republic of Korea.
- Center for Cell Fate Reprogramming and Control, DGIST, Daegu, 42988, Republic of Korea.
| | - Yong-Seok Lee
- Department of Biomedical Science, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
- Department of Physiology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
- Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
- Wide River Institute of Immunology, Seoul National University, Hongcheon, 25159, Republic of Korea.
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Cho H, Yoo T, Moon H, Kang H, Yang Y, Kang M, Yang E, Lee D, Hwang D, Kim H, Kim D, Kim JY, Kim E. Correction: Adnp-mutant mice with cognitive inflexibility, CaMKIIα hyperactivity, and synaptic plasticity deficits. Mol Psychiatry 2023; 28:3563. [PMID: 37479786 PMCID: PMC10618081 DOI: 10.1038/s41380-023-02192-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Affiliation(s)
- Heejin Cho
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea
- Center for Synaptic Brain Dysfunctions, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Taesun Yoo
- Center for Synaptic Brain Dysfunctions, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Heera Moon
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Hyojin Kang
- Division of National Supercomputing, Korea Institute of Science and Technology Information, Daejeon, 34141, Korea
| | - Yeji Yang
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162 Yeongudanjiro, Ochang, Cheongju, Chungbuk, 28119, Korea
| | - MinSoung Kang
- Therapeutics & Biotechnology Division, Drug discovery platform research center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Korea
| | - Esther Yang
- Department of Anatomy and BK21 Graduate Program, Biomedical Sciences, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Dowoon Lee
- School of Biological Sciences, Seoul National University, Seoul, 08826, Korea
| | - Daehee Hwang
- School of Biological Sciences, Seoul National University, Seoul, 08826, Korea
| | - Hyun Kim
- Department of Anatomy and BK21 Graduate Program, Biomedical Sciences, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Doyoun Kim
- Therapeutics & Biotechnology Division, Drug discovery platform research center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Korea
- Medicinal Chemistry and Pharmacology, Korea University of Science and Technology (UST), Daejeon, 34113, Korea
| | - Jin Young Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162 Yeongudanjiro, Ochang, Cheongju, Chungbuk, 28119, Korea
| | - Eunjoon Kim
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea.
- Center for Synaptic Brain Dysfunctions, Institute for Basic Science (IBS), Daejeon, 34141, Korea.
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Cho H, Yoo T, Moon H, Kang H, Yang Y, Kang M, Yang E, Lee D, Hwang D, Kim H, Kim D, Kim JY, Kim E. Adnp-mutant mice with cognitive inflexibility, CaMKIIα hyperactivity, and synaptic plasticity deficits. Mol Psychiatry 2023; 28:3548-3562. [PMID: 37365244 PMCID: PMC10618100 DOI: 10.1038/s41380-023-02129-5] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 05/14/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023]
Abstract
ADNP syndrome, involving the ADNP transcription factor of the SWI/SNF chromatin-remodeling complex, is characterized by developmental delay, intellectual disability, and autism spectrum disorders (ASD). Although Adnp-haploinsufficient (Adnp-HT) mice display various phenotypic deficits, whether these mice display abnormal synaptic functions remain poorly understood. Here, we report synaptic plasticity deficits associated with cognitive inflexibility and CaMKIIα hyperactivity in Adnp-HT mice. These mice show impaired and inflexible contextual learning and memory, additional to social deficits, long after the juvenile-stage decrease of ADNP protein levels to ~10% of the newborn level. The adult Adnp-HT hippocampus shows hyperphosphorylated CaMKIIα and its substrates, including SynGAP1, and excessive long-term potentiation that is normalized by CaMKIIα inhibition. Therefore, Adnp haploinsufficiency in mice leads to cognitive inflexibility involving CaMKIIα hyperphosphorylation and excessive LTP in adults long after its marked expressional decrease in juveniles.
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Affiliation(s)
- Heejin Cho
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea
- Center for Synaptic Brain Dysfunctions, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Taesun Yoo
- Center for Synaptic Brain Dysfunctions, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Heera Moon
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Hyojin Kang
- Division of National Supercomputing, Korea Institute of Science and Technology Information, Daejeon, 34141, Korea
| | - Yeji Yang
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162 Yeongudanjiro, Ochang, Cheongju, Chungbuk, 28119, Korea
| | - MinSoung Kang
- Therapeutics & Biotechnology Division, Drug discovery platform research center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Korea
| | - Esther Yang
- Department of Anatomy and BK21 Graduate Program, Biomedical Sciences, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Dowoon Lee
- School of Biological Sciences, Seoul National University, Seoul, 08826, Korea
| | - Daehee Hwang
- School of Biological Sciences, Seoul National University, Seoul, 08826, Korea
| | - Hyun Kim
- Department of Anatomy and BK21 Graduate Program, Biomedical Sciences, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Doyoun Kim
- Therapeutics & Biotechnology Division, Drug discovery platform research center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Korea
- Medicinal Chemistry and Pharmacology, Korea University of Science and Technology (UST), Daejeon, 34113, Korea
| | - Jin Young Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, 162 Yeongudanjiro, Ochang, Cheongju, Chungbuk, 28119, Korea
| | - Eunjoon Kim
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea.
- Center for Synaptic Brain Dysfunctions, Institute for Basic Science (IBS), Daejeon, 34141, Korea.
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Kim D, Ahn J, Park E, Kim JY, Kim C. In vivo quantitative photoacoustic monitoring of corticosteroid-induced vasoconstriction. J Biomed Opt 2023; 28:082805. [PMID: 36844430 PMCID: PMC9951467 DOI: 10.1117/1.jbo.28.8.082805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
SIGNIFICANCE Corticosteroids-commonly prescribed medications for skin diseases-inhibit the secretion of vasodilators, such as prostaglandin, thereby exerting anti-inflammatory action by constricting capillaries in the dermis. The effectiveness of corticosteroids is determined by the degree of vasoconstriction followed by skin whitening, namely, the blanching effect. However, the current method of observing the blanching effect indirectly evaluates the effects of corticosteroids. AIM In this study, we employed optical-resolution photoacoustic (PA) microscopy (OR-PAM) to directly visualize the blood vessels and quantitatively evaluate vasoconstriction. APPROACH Using OR-PAM, the vascular density in mice skin was monitored for 60 min after performing each experimental procedure for four groups, and the vasoconstriction was quantified. Volumetric PA data were segmented into the papillary dermis, reticular dermis, and hypodermis based on the vascular characteristics obtained through OR-PAM. The vasoconstrictive effect of each skin layer was quantified according to the dermatological treatment method. RESULTS In the case of corticosteroid topical application, vasoconstriction was observed in the papillary ( 56.4 ± 10.9 % ) and reticular ( 45.1 ± 4.71 % ) dermis. For corticosteroid subcutaneous injection, constriction was observed solely in the reticular ( 49.5 ± 9.35 % ) dermis. In contrast, no vasoconstrictions were observed with nonsteroidal topical application. CONCLUSIONS Our results indicate that OR-PAM can quantitatively monitor the vasoconstriction induced by corticosteroids, thereby validating OR-PAMs potential as a practical evaluation tool for predicting the effectiveness of corticosteroids in dermatology.
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Affiliation(s)
- Donggyu Kim
- Pohang University of Science and Technology, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, and Medical Device Innovation Center Group, Pohang, Republic of Korea
| | - Joongho Ahn
- Pohang University of Science and Technology, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, and Medical Device Innovation Center Group, Pohang, Republic of Korea
| | - Eunwoo Park
- Pohang University of Science and Technology, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, and Medical Device Innovation Center Group, Pohang, Republic of Korea
| | - Jin Young Kim
- Pohang University of Science and Technology, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, and Medical Device Innovation Center Group, Pohang, Republic of Korea
| | - Chulhong Kim
- Pohang University of Science and Technology, Departments of Electrical Engineering, Convergence IT Engineering, Mechanical Engineering, Medical Science and Engineering, and Medical Device Innovation Center Group, Pohang, Republic of Korea
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Rasool S, Kim JY. Prospects of glove-box versus air-processed organic solar cells. Phys Chem Chem Phys 2023; 25:19337-19357. [PMID: 37462029 DOI: 10.1039/d3cp02591h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
In the search for alternate green energy sources to offset dependence on fossil fuels, solar energy can certainly meet two needs with one deed: fulfil growing global energy demands due to its non-depletable nature and lower greenhouse gas emissions. As such, third generation thin film photovoltaic technology based organic solar cells (OSCs) can certainly play their role in providing electricity at a competing or lower cost than 1st and 2nd generation solar technologies. As OSCs are still at an early stage of research and development, much focus has been placed on improving power conversion efficiencies (PCEs) inside a controlled environment i.e. a glove-box (GB) filled with an inert gas such as N2. This was necessary until now, to control and study the local nanomorphology of the spin-coated blend films. For OSCs to compete with other solar energy technologies, OSCs should produce similar or even better morphologies in an open environment i.e. air, such that air-processed OSCs can result in similar PCEs in comparison to their GB-processed counterparts. In this review, we have compared GB- vs. air-processed OSCs from morphological and device physics aspects and underline the key features of efficient OSCs, processed in either GB or air.
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Affiliation(s)
- Shafket Rasool
- Graduate School of Carbon Neutrality, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, South Korea.
| | - Jin Young Kim
- Graduate School of Carbon Neutrality, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, South Korea.
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Kim J, Kim S, Park SY, Lee GK, Lim KY, Kim JY, Hwang JA, Yu N, Kang EH, Hwang M, Song BR, Park C, Han JY. Molecular Subtypes and Tumor Microenvironment Characteristics of Small-Cell Lung Cancer Associated with Platinum-Resistance. Cancers (Basel) 2023; 15:3568. [PMID: 37509231 PMCID: PMC10377352 DOI: 10.3390/cancers15143568] [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: 06/06/2023] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Although molecular subtypes of small-cell lung cancer (SCLC) have been proposed, their clinical relevance and therapeutic implications are not fully understood. Thus, we aimed to refine molecular subtypes and to uncover therapeutic targets. We classified the subtypes based on gene expression (n = 81) and validated them in our samples (n = 87). Non-SCLC samples were compared with SCLC subtypes to identify the early development stage of SCLC. Single-cell transcriptome analysis was applied to dissect the TME of bulk samples. Finally, to overcome platinum resistance, we performed drug screening of patient-derived cells and cell lines. Four subtypes were identified: the ASCL1+ (SCLC-A) subtype identified as TP53/RB-mutated non-SCLC representing the early development stage of SCLC; the immune activation (SCLC-I) subtype, showing high CD8+/PD-L1+ T-cell infiltration and endothelial-to-mesenchymal transition (EndMT); the NEUROD1 (SCLC-N) subtype, which showed neurotransmission process; and the POU2F3+ (SCLC-P) subtype with epithelial-to-mesenchymal transition (EMT). EndMT was associated with the worst prognosis. While SCLC-A/N exhibited platinum sensitivity, the EndMT signal of SCLC-I conferred platinum resistance. A BET inhibitor suppressed the aggressive angiogenesis phenotype of SCLC-I. We revealed that EndMT development contributed to a poor outcome in SCLC-I. Moreover, heterogenous TME development facilitated platinum resistance. BET inhibitors are novel candidates for overcoming platinum resistance.
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Affiliation(s)
- Jihyun Kim
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
- Korea Disease Control and Prevention Agency, Osong Health Technology Administration Complex, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si 28159, Chungcheongbuk-do, Republic of Korea
| | - Sunshin Kim
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Seog-Yun Park
- Department of Pathology, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Geon Kook Lee
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Kun Young Lim
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Jin Young Kim
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Jung-Ah Hwang
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Namhee Yu
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Eun Hye Kang
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Mihwa Hwang
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Bo Ram Song
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Charny Park
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
| | - Ji-Youn Han
- Research Institute, National Cancer Center, 232 Ilsan-ro, Goyang-si 10408, Kyeonggi-do, Republic of Korea
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Kim JY, Jang W, Lim J, Wang DH. One-Pot Synthesis of All-Inorganic CsPbClBr 2 Blue Perovskite Quantum Dots via Stoichiometric Precursor. Inorg Chem 2023. [PMID: 37428070 DOI: 10.1021/acs.inorgchem.3c01486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
The synthesis of perovskite-based blue light-emitting particles is valuable for several applications as the excellent optical properties and performances of the constituting materials associated with multi-exciton generation can be exploited. However, the preparation of perovskite precursors requires high temperatures, resulting in a complex manufacturing process. This paper proposes a one-pot method to synthesize CsPbClBr2 blue light-emitting quantum dots (QDs). In the case of nonstoichiometric precursor synthesis, the CsPbClBr2 QDs coexisted with additional products. The solvent for synthesizing mixed perovskite nanoparticles (containing chloride) was selected by mixing dimethylformamide (DMF) and/or dimethyl sulfoxide (DMSO) in different ratios. When only DMF was used with the stoichiometric CsBr and PbX2 (X = Cl, Br) ratio, the quantum yield was 70.55%, and superior optical properties were achieved. Moreover, no discoloration was observed for 400 h, and a high photoluminescence intensity was maintained. When deionized water was added to form a double layer with hexane, the luminescence was maintained for 15 days. In other words, the perovskite did not easily decompose even when in contact with water, which suppressed the release of Pb2+, which are heavy metal atoms in the structure. Overall, the proposed one-pot method for all-inorganic-based perovskite QDs provides a platform for synthesizing superior blue light-emitting materials.
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Affiliation(s)
- Jin Young Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Woongsik Jang
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Jihyun Lim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Dong Hwan Wang
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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Shin HJ, Kim JY, Hong JH, Lee MS, Yi J, Kwon YS, Lee JY. Assessment of the Suitability of the Fleischner Society Imaging Guidelines in Evaluating Chest Radiographs of COVID-19 Patients. J Korean Med Sci 2023; 38:e199. [PMID: 37401494 DOI: 10.3346/jkms.2023.38.e199] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 03/16/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND The Fleischner Society established consensus guidelines for imaging in patients with coronavirus disease 2019 (COVID-19). We investigated the prevalence of pneumonia and the adverse outcomes by dividing groups according to the symptoms and risk factors of patients and assessed the suitability of the Fleischner society imaging guidelines in evaluating chest radiographs of COVID-19 patients. METHODS From February 2020 to May 2020, 685 patients (204 males, mean 58 ± 17.9 years) who were diagnosed with COVID-19 and hospitalized were included. We divided patients into four groups according to the severity of symptoms and presence of risk factors (age > 65 years and presence of comorbidities). The patient groups were defined as follows: group 1 (asymptomatic patients), group 2 (patients with mild symptoms without risk factors), group 3 (patients with mild symptoms and risk factors), and group 4 (patients with moderate to severe symptoms). According to the Fleischner society, chest imaging is not indicated for groups 1-2 but is indicated for groups 3-4. We compared the prevalence and score of pneumonia on chest radiographs and compare the adverse outcomes (progress to severe pneumonia, intensive care unit admission, and death) between groups. RESULTS Among the 685 COVID-19 patients, 138 (20.1%), 396 (57.8%), 102 (14.9%), and 49 (7.1%) patients corresponded to groups 1 to 4, respectively. Patients in groups 3-4 were significantly older and showed significantly higher prevalence rates of pneumonia (group 1-4: 37.7%, 51.3%, 71.6%, and 98%, respectively, P < 0.001) than those in groups 1-2. Adverse outcomes were also higher in groups 3-4 than in groups 1-2 (group 1-4: 8.0%, 3.5%, 6.9%, and 51%, respectively, P < 0.001). Patients with adverse outcomes in group 1 were initially asymptomatic but symptoms developed during follow-up. They were older (mean age, 80 years) and most of them had comorbidities (81.8%). Consistently asymptomatic patients had no adverse events. CONCLUSION The prevalence of pneumonia and adverse outcomes were different according to the symptoms and risk factors in COVID-19 patients. Therefore, as the Fleischner Society recommended, evaluation and monitoring of COVID-19 pneumonia using chest radiographs is necessary for old symptomatic patients with comorbidities.
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Affiliation(s)
- Hyo Ju Shin
- Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea
| | - Jin Young Kim
- Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.
| | - Jung Hee Hong
- Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea
| | - Mu Sook Lee
- Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea
| | - Jaehyuck Yi
- Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea
| | - Yong Shik Kwon
- Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea
| | - Ji Yeon Lee
- Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea
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Do JR, Park SJ, Kim JY, Shin JP, Park DH. Reply. Retina 2023; 43:e45-e46. [PMID: 37071920 DOI: 10.1097/iae.0000000000003814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Affiliation(s)
- Jae Rock Do
- Department of Ophthalmology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Republic of Korea
| | - Su Jin Park
- Kyungpook National University Cell and Matrix Research Institute, Republic of Korea
| | - Jin Young Kim
- Department of Ophthalmology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Republic of Korea
| | - Jae Pil Shin
- Department of Ophthalmology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Republic of Korea
| | - Dong Ho Park
- Department of Ophthalmology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Republic of Korea
- Kyungpook National University Cell and Matrix Research Institute, Republic of Korea
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