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Geem KR, Lim Y, Hong J, Bae W, Lee J, Han S, Gil J, Cho H, Ryu H. Cytokinin signaling promotes root secondary growth and bud formation in Panax ginseng. J Ginseng Res 2024; 48:220-228. [PMID: 38465220 PMCID: PMC10919999 DOI: 10.1016/j.jgr.2023.11.002] [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: 07/24/2023] [Revised: 10/24/2023] [Accepted: 11/06/2023] [Indexed: 03/12/2024] Open
Abstract
Background Panax ginseng, one of the valuable perennial medicinal plants, stores numerous pharmacological substrates in its storage roots. Given its perennial growth habit, organ regeneration occurs each year, and cambium stem cell activity is necessary for secondary growth and storage root formation. Cytokinin (CK) is a phytohormone involved in the maintenance of meristematic cells for the development of storage organs; however, its physiological role in storage-root secondary growth remains unknown. Methods Exogenous CK was repeatedly applied to P. ginseng, and morphological and histological changes were observed. RNA-seq analysis was used to elucidate the transcriptional network of CK that regulates P. ginseng growth and development. The HISTIDINE KINASE 3 (PgHK3) and RESPONSE REGULATOR 2 (PgRR2) genes were cloned in P. ginseng and functionally analyzed in Arabidopsis as a two-component system involved in CK signaling. Results Phenotypic and histological analyses showed that CK increased cambium activity and dormant axillary bud formation in P. ginseng, thus promoting storage-root secondary growth and bud formation. The evolutionarily conserved two-component signaling pathways in P. ginseng were sufficient to restore CK signaling in the Arabidopsis ahk2/3 double mutant and rescue its growth defects. Finally, RNA-seq analysis of CK-treated P. ginseng roots revealed that plant-type cell wall biogenesis-related genes are tightly connected with mitotic cell division, cytokinesis, and auxin signaling to regulate CK-mediated P. ginseng development. Conclusion Overall, we identified the CK signaling-related two-component systems and their physiological role in P. ginseng. This scientific information has the potential to significantly improve the field-cultivation and biotechnology-based breeding of ginseng.
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Affiliation(s)
- Kyoung Rok Geem
- Department of Biology, Chungbuk National University, Cheongju, Republic of Korea
| | - Yookyung Lim
- Department of Industrial Plant Science & Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Jeongeui Hong
- Department of Biology, Chungbuk National University, Cheongju, Republic of Korea
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Republic of Korea
| | - Wonsil Bae
- Department of Biology, Chungbuk National University, Cheongju, Republic of Korea
| | - Jinsu Lee
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Soeun Han
- Department of Biology, Chungbuk National University, Cheongju, Republic of Korea
| | - Jinsu Gil
- Department of Industrial Plant Science & Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Hyunwoo Cho
- Department of Industrial Plant Science & Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Hojin Ryu
- Department of Biology, Chungbuk National University, Cheongju, Republic of Korea
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Republic of Korea
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Yoo DH, Choi JY, Lee SG, Choi KW, Park HB, Kim H, Cho H, Kim SD, Kim D, Lee YJ, Park KS, Ha IH. Long-Term Follow-Up of Inpatients with Rotator Cuff Tear Who Received Integrative Korean Medicine Treatment: A Retrospective Analysis and Questionnaire Survey. Explore (NY) 2024; 20:212-221. [PMID: 37689574 DOI: 10.1016/j.explore.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 07/24/2023] [Accepted: 08/15/2023] [Indexed: 09/11/2023]
Abstract
CONTEXT Rotator cuff tear is one of the most common causes of shoulder pain and has become a prominent disease most frequently treated by surgery. OBJECTIVES To investigate the long-term therapeutic effect of integrative Korean medicine (KM) as a conservative treatment in treating rotator cuff tears. DESIGN A multicenter observational study. SETTINGS The settings involve four regional network KM hospitals. PATIENTS The study participants are 288 patients aged 19-70 with rotator cuff tear identified by radiologist based on magnetic resonance imaging who received integrative KM treatment for the chief complaint of shoulder pain between 1 January 2015 and 31 March 2020. INTERVENTION None. MAIN OUTCOMES The primary outcome was the pain score in the affected shoulder, measured by the numeric rating scale (NRS). The secondary outcomes were Shoulder Pain and Disability Index (SPADI), 5-Level Quality of life: EuroQol 5-Dimension (EQ-5D-5L), Patient Global Impression of Change (PGIC), and range of motion (ROM) scores. RESULTS Eligible patients for MCID achievement analysis for minimally clinical important change were 167, and 109 completed the follow-up survey. The mean NRS pain score in the affected shoulder was 5.80 ± 1.27 at admission, 3.50 ± 1.32 at discharge, and 3.83 ± 2.04 at follow-up.The mean SPADI score was 51.48 ± 20.18 at admission, 37.76 ± 19.23 at discharge, and 24.26 ± 21.80 at follow-up. The improvement at discharge (P-value < 0.001) and follow-up (P-value < 0.001) compared to those at admission was statistically significant. The results also presented a significant improvement in ROM for all motions at discharge after treatment (P-value < 0.001). The number of patients who achieved minimal clinically important difference in NRS was 116 (69.5%) at discharge and 71 (65.1%) at follow-up, and in SPADI was 82 (50.9%) at discharge and 77 (70.6%) at follow-up. CONCLUSION The results of this study suggested that integrative KM treatment can help improve pain, functional impairment, QoL, and ROM in patients with a rotator cuff tear TRIAL REGISTRATION: NCT04566939.
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Affiliation(s)
- Dong-Hwi Yoo
- Haeundae Jaseng Hospital of Korean Medicine, Busan, 48102, Republic of Korea
| | - Jae-Yong Choi
- Haeundae Jaseng Hospital of Korean Medicine, Busan, 48102, Republic of Korea
| | - Sang-Gun Lee
- Haeundae Jaseng Hospital of Korean Medicine, Busan, 48102, Republic of Korea
| | - Ki-Won Choi
- Haeundae Jaseng Hospital of Korean Medicine, Busan, 48102, Republic of Korea
| | - Han-Bin Park
- Haeundae Jaseng Hospital of Korean Medicine, Busan, 48102, Republic of Korea
| | - Ho Kim
- Haeundae Jaseng Hospital of Korean Medicine, Busan, 48102, Republic of Korea
| | - Hyunwoo Cho
- Haeundae Jaseng Hospital of Korean Medicine, Busan, 48102, Republic of Korea
| | - Sang Don Kim
- Haeundae Jaseng Hospital of Korean Medicine, Busan, 48102, Republic of Korea
| | - Doori Kim
- Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, 06110, Republic of Korea
| | - Yoon Jae Lee
- Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, 06110, Republic of Korea
| | - Kyoung Sun Park
- Jaseng Hospital of Korean Medicine, Seoul, 06110, Republic of Korea.
| | - In-Hyuk Ha
- Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul, 06110, Republic of Korea.
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Park J, Cho H, Ji Y, Lee K, Yoon H. Detection of spondylosis deformans in thoracolumbar and lumbar lateral X-ray images of dogs using a deep learning network. Front Vet Sci 2024; 11:1334438. [PMID: 38425836 PMCID: PMC10902442 DOI: 10.3389/fvets.2024.1334438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/30/2024] [Indexed: 03/02/2024] Open
Abstract
Introduction Spondylosis deformans is a non-inflammatory osteophytic reaction that develops to re-establish the stability of weakened joints between intervertebral discs. However, assessing these changes using radiography is subjective and difficult. In human medicine, attempts have been made to use artificial intelligence to accurately diagnose difficult and ambiguous diseases in medical imaging. Deep learning, a form of artificial intelligence, is most commonly used in medical imaging data analysis. It is a technique that utilizes neural networks to self-learn and extract features from data to diagnose diseases. However, no deep learning model has been developed to detect vertebral diseases in canine thoracolumbar and lumbar lateral X-ray images. Therefore, this study aimed to establish a segmentation model that automatically recognizes the vertebral body and spondylosis deformans in the thoracolumbar and lumbar lateral radiographs of dogs. Methods A total of 265 thoracolumbar and lumbar lateral radiographic images from 162 dogs were used to develop and evaluate the deep learning model based on the attention U-Net algorithm to segment the vertebral body and detect spondylosis deformans. Results When comparing the ability of the deep learning model and veterinary clinicians to recognize spondylosis deformans in the test dataset, the kappa value was 0.839, indicating an almost perfect agreement. Conclusions The deep learning model developed in this study is expected to automatically detect spondylosis deformans on thoracolumbar and lumbar lateral radiographs of dogs, helping to quickly and accurately identify unstable intervertebral disc space sites. Furthermore, the segmentation model developed in this study is expected to be useful for developing models that automatically recognize various vertebral and disc diseases.
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Affiliation(s)
- Junseol Park
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Hyunwoo Cho
- Department of Electronic Engineering, Sogang University, Seoul, Republic of Korea
| | - Yewon Ji
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Kichang Lee
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Hakyoung Yoon
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
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Choe J, Cho H, Chung Y. Performance Verification of Autonomous Driving LiDAR Sensors under Rainfall Conditions in Darkroom. Sensors (Basel) 2023; 24:14. [PMID: 38202875 PMCID: PMC10780831 DOI: 10.3390/s24010014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/10/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024]
Abstract
This research aims to assess the functionality of the VLP-32 LiDAR sensor, which serves as the principal sensor for object recognition in autonomous vehicles. The evaluation is conducted by simulating edge conditions the sensor might encounter in a controlled darkroom setting. Parameters for environmental conditions under examination encompass measurement distances ranging from 10 to 30 m, varying rainfall intensities (0, 20, 30, 40 mm/h), and different observation angles (0°, 30°, 60°). For the material aspects, the investigation incorporates reference materials, traffic signs, and road surfaces. Employing this diverse set of conditions, the study quantitatively assesses two critical performance metrics of LiDAR: intensity and NPC (number of point clouds). The results indicate a general decline in intensity as the measurement distance, rainfall intensity, and observation angles increase. Instances were identified where the sensor failed to record intensity for materials with low reflective properties. Concerning NPC, both the effective measurement area and recorded values demonstrated a decreasing trend with enlarging measurement distance and angles of observation. However, NPC metrics remained stable despite fluctuations in rainfall intensity.
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Affiliation(s)
| | | | - Yoonseok Chung
- Transportation Safety Unit, Construction Division, Korea Conformity Laboratories (KCL), Nambusunhwan-ro 319-gil, Seocho-gu, Seoul 06711, Republic of Korea; (J.C.); (H.C.)
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Kim I, Cho H, Kitchamsetti N, Yun J, Lee J, Park W, Kim D. A Robust Triboelectric Impact Sensor with Carbon Dioxide Precursor-Based Calcium Carbonate Layer for Slap Match Application. Micromachines (Basel) 2023; 14:1778. [PMID: 37763941 PMCID: PMC10537528 DOI: 10.3390/mi14091778] [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: 08/24/2023] [Revised: 09/08/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023]
Abstract
As an urgent international challenge, the sudden change in climate due to global warming needs to be addressed in the near future. This can be achieved through a reduction in fossil fuel utilization and through carbon sequestration, which reduces the concentration of CO2 in the atmosphere. In this study, a self-sustainable impact sensor is proposed through implementing a triboelectric nanogenerator with a CaCO3 contact layer fabricated via a CO2 absorption method. The triboelectric polarity of CaCO3 with the location between the polyimide and the paper and the effects of varying the crystal structure are investigated first. The impact sensing characteristics are then confirmed at various input frequencies and under applied forces. Further, the high mechanical strength and strong adherence of CaCO3 on the surface of the device are demonstrated through enhanced durability compared to the unmodified device. For the intended application, the as-fabricated sensor is used to detect the turning state of the paper Ddakji in a slap match game using a supervised learning algorithm based on a support vector machine presenting a high classification accuracy of 95.8%. The robust CaCO3-based triboelectric device can provide an eco-friendly advantage due to its self-powered characteristics for impact sensing and carbon sequestration.
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Affiliation(s)
- Inkyum Kim
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea; (I.K.); (H.C.)
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Hyunwoo Cho
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea; (I.K.); (H.C.)
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Narasimharao Kitchamsetti
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
- Department of Electronic Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Jonghyeon Yun
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea; (I.K.); (H.C.)
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Jeongmin Lee
- Department of Electronic Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Wook Park
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea; (I.K.); (H.C.)
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Daewon Kim
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
- Department of Electronic Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
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Pulecio J, Tayyebi Z, Liu D, Wong W, Luo R, Damodaran JR, Kaplan S, Cho H, Yan J, Murphy D, Rickert RW, Shukla A, Zhong A, González F, Yang D, Li W, Zhou T, Apostolou E, Leslie CS, Huangfu D. Discovery of Competent Chromatin Regions in Human Embryonic Stem Cells. bioRxiv 2023:2023.06.14.544990. [PMID: 37398096 PMCID: PMC10312725 DOI: 10.1101/2023.06.14.544990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
The mechanisms underlying the ability of embryonic stem cells (ESCs) to rapidly activate lineage-specific genes during differentiation remain largely unknown. Through multiple CRISPR-activation screens, we discovered human ESCs have pre-established transcriptionally competent chromatin regions (CCRs) that support lineage-specific gene expression at levels comparable to differentiated cells. CCRs reside in the same topological domains as their target genes. They lack typical enhancer-associated histone modifications but show enriched occupancy of pluripotent transcription factors, DNA demethylation factors, and histone deacetylases. TET1 and QSER1 protect CCRs from excessive DNA methylation, while HDAC1 family members prevent premature activation. This "push and pull" feature resembles bivalent domains at developmental gene promoters but involves distinct molecular mechanisms. Our study provides new insights into pluripotency regulation and cellular plasticity in development and disease. One sentence summary We report a class of distal regulatory regions distinct from enhancers that confer human embryonic stem cells with the competence to rapidly activate the expression of lineage-specific genes.
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Cho H, Seok J, Park Y, Kim HJ, Lee EH, Park J, Park DA, Kang YA, Lee J. Cost-Effectiveness of Age-Expanding Strategy of Latent Tuberculosis Infection Treatment in Household Contacts in South Korea. Yonsei Med J 2023; 64:366-374. [PMID: 37226563 DOI: 10.3349/ymj.2022.0624] [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: 02/07/2023] [Revised: 03/30/2023] [Accepted: 03/30/2023] [Indexed: 05/26/2023] Open
Abstract
PURPOSE The strategy of latent tuberculosis infection (LTBI) treatment in household tuberculosis (TB) contacts has been expanding in South Korea. However, there is little evidence of the cost-effectiveness of LTBI treatment in patients over 35 years of age. This study aimed to evaluate the cost-effectiveness of LTBI treatment among household TB contacts in different age groups in South Korea. MATERIALS AND METHODS An age-structured model of TB was developed based on the reports from the Korea Disease Control and Prevention Agency and the National Health Insurance Service. Quality-adjusted life-years (QALY) and the averted number of TB-related deaths were estimated along with discounted costs for a measure of incremental cost-effectiveness ratios. RESULTS The number of cumulative active TB cases would decrease by 1564 and 7450 under the scenario of LTBI treatment for those aged <35 years and <70 years, respectively, relative to the no-treatment scenario. The treatment strategies for patients aged 0 to <35 years, <55 years, <65 years, and <70 years would add 397, 1482, 3782, and 8491 QALYs at a cost of $660, $5930, $4560, and $2530, respectively, per QALY. For the averted TB-related deaths, LTBI treatment targeting those aged 0 to <35 years, <55 years, <65 years, and <70 years would avert 7, 89, 155, and 186 deaths at a cost of $35900, $99200, $111100, and $115700 per deaths, respectively, in 20 years. CONCLUSION The age-specific expansion policy of LTBI treatment not only for those under 35 years of age but also for those under 65 years of age among household contacts was cost-effective in terms of QALYs and averted TB deaths.
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Affiliation(s)
- Hyunwoo Cho
- School of Mathematics and Computing (Computational Science and Engineering), Yonsei University, Seoul, Korea
| | - Jeongjoo Seok
- School of Mathematics and Computing (Mathematics), Yonsei University, Seoul, Korea
| | - Youngmok Park
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hee Jin Kim
- Central Training Institute, Korean National Tuberculosis Association, Seoul, Korea
| | - Eun Hye Lee
- Division of Pulmonology, Allergy and Critical Care Medicine, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Jungeun Park
- Division of Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency (NECA), Seoul, Korea
| | - Dong Ah Park
- Division of Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency (NECA), Seoul, Korea
| | - Young Ae Kang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Institute of Immunology and Immunological Disease, Yonsei University College of Medicine, Seoul, Korea.
| | - Jeehyun Lee
- School of Mathematics and Computing (Mathematics), Yonsei University, Seoul, Korea.
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Dang TVT, Lee S, Cho H, Choi K, Hwang I. The LBD11-ROS feedback regulatory loop modulates vascular cambium proliferation and secondary growth in Arabidopsis. Mol Plant 2023:S1674-2052(23)00144-2. [PMID: 37264569 DOI: 10.1016/j.molp.2023.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 02/24/2023] [Accepted: 05/29/2023] [Indexed: 06/03/2023]
Abstract
Vascular cambium produces the phloem and xylem, vascular tissues that transport resources and provide mechanical support, making it an ideal target for crop improvement. However, much remains unknown about how vascular cambium proliferates. Here, through pharmaceutical and genetic manipulation of reactive oxygen species (ROS) maxima, we demonstrate a direct link between levels of ROS and activity of LATERAL ORGAN BOUNDARIES DOMAIN 11 (LBD11) in maintaining vascular cambium activity. LBD11 activates transcription of the key ROS metabolic genes PEROXIDASE 71 (PRX71), RESPIRATORY BURST OXIDASE HOMOLOG D (RBOHD) and RBOHF to generate local ROS maxima in cambium, which in turn enhance the proliferation of cambial cells. In a negative feedback mechanism, higher ROS levels then repress LBD11 expression and maintain the balance of cambial cell proliferation. Our findings thus reveal the role of a novel LBD11/ROS-dependent feedback regulatory system in maintaining vascular cambium-specific redox homeostasis and radial growth in plants.
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Affiliation(s)
- Tuong Vi T Dang
- Department of Life Sciences, POSTECH Biotech Center, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Seungchul Lee
- Department of Life Sciences, POSTECH Biotech Center, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Hyunwoo Cho
- Department of Industrial Plant Science & Technology, College of Agriculture, Life & Environmental Sciences, Chungbuk National University, Cheongju 28644, Korea
| | - Kyuha Choi
- Department of Life Sciences, POSTECH Biotech Center, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Ildoo Hwang
- Department of Life Sciences, POSTECH Biotech Center, Pohang University of Science and Technology, Pohang 37673, Korea.
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Rosen BP, Li QV, Cho H, Liu D, Yang D, Graff S, Yan J, Luo R, Verma N, Damodaran JR, Beer MA, Sidoli S, Huangfu D. Parallel genome-scale CRISPR screens distinguish pluripotency and self-renewal. bioRxiv 2023:2023.05.03.539283. [PMID: 37205540 PMCID: PMC10187244 DOI: 10.1101/2023.05.03.539283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Pluripotent stem cells are defined by both the ability to unlimitedly self-renew and differentiate to any somatic cell lineage, but understanding the mechanisms that control stem cell fitness versus the pluripotent cell identity is challenging. We performed four parallel genome-scale CRISPR-Cas9 screens to investigate the interplay between these two aspects of pluripotency. Our comparative analyses led to the discovery of genes with distinct roles in pluripotency regulation, including many mitochondrial and metabolism regulators crucial for stem cell fitness, and chromatin regulators that control stem cell identity. We further discovered a core set of factors that control both stem cell fitness and pluripotency identity, including an interconnected network of chromatin factors that safeguard pluripotency. Our unbiased and systematic screening and comparative analyses disentangle two interconnected aspects of pluripotency, provide rich datasets for exploring pluripotent cell identity versus self-renewal, and offer a valuable model for categorizing gene function in broad biological contexts.
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Cho H, Song I, Jang J, Yoo Y. A Lightweight Deep Learning Network on a System-on-Chip for Wearable Ultrasound Bladder Volume Measurement Systems: Preliminary Study. Bioengineering (Basel) 2023; 10:bioengineering10050525. [PMID: 37237594 DOI: 10.3390/bioengineering10050525] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/17/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Bladder volume assessments are crucial for managing urinary disorders. Ultrasound imaging (US) is a preferred noninvasive, cost-effective imaging modality for bladder observation and volume measurements. However, the high operator dependency of US is a major challenge due to the difficulty in evaluating ultrasound images without professional expertise. To address this issue, image-based automatic bladder volume estimation methods have been introduced, but most conventional methods require high-complexity computing resources that are not available in point-of-care (POC) settings. Therefore, in this study, a deep learning-based bladder volume measurement system was developed for POC settings using a lightweight convolutional neural network (CNN)-based segmentation model, which was optimized on a low-resource system-on-chip (SoC) to detect and segment the bladder region in ultrasound images in real time. The proposed model achieved high accuracy and robustness and can be executed on the low-resource SoC at 7.93 frames per second, which is 13.44 times faster than the frame rate of a conventional network with negligible accuracy drawbacks (0.004 of the Dice coefficient). The feasibility of the developed lightweight deep learning network was demonstrated using tissue-mimicking phantoms.
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Affiliation(s)
- Hyunwoo Cho
- Department of Electronic Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Ilseob Song
- Medical Solutions Institute, Sogang University, Seoul 04107, Republic of Korea
- Edgecare Inc., TE1103, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Jihun Jang
- Medical Solutions Institute, Sogang University, Seoul 04107, Republic of Korea
- Edgecare Inc., TE1103, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Yangmo Yoo
- Department of Electronic Engineering, Sogang University, Seoul 04107, Republic of Korea
- Edgecare Inc., TE1103, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
- Department of Biomedical Engineering, Sogang University, Seoul 04107, Republic of Korea
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Ortabozkoyun H, Huang PY, Cho H, Tsirigos A, Mazzoni E, Reinberg D. Novel Chromatin Insulating Activities Uncovered upon Eliminating Known Insulators in vivo. bioRxiv 2023:2023.04.25.538167. [PMID: 37162865 PMCID: PMC10168243 DOI: 10.1101/2023.04.25.538167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
CCCTC-binding factor (CTCF) and MAZ are recognized insulators required for shielding repressed posterior genes from active anterior genes within the Hox clusters during motor neuron (MN) differentiation. CTCF and MAZ interact independently with cohesin and regulate three-dimensional genome organization. Here, we followed cohesin re-location upon CTCF and MAZ depletion in mouse embryonic stem cells (mESCs) to identify novel insulators. Cohesin relocated to DNA motifs for various transcription factors, including PATZ1 and other zinc finger proteins (ZNFs). Moreover, PATZ1 and ZNFs co-localized with CTCF, MAZ, and cohesin with apparent overlapping specificity as dictated by the site to be insulated. Similar to CTCF and MAZ, PATZ1 interacted with RAD21. Patz1 KO mESCs exhibited altered global gene expression. While the absence of MAZ impacts anterior CTCF-boundaries as shown previously 1 , Patz1 KO led to derepression of posterior Hox genes, resulting in cervicothoracic transformation of motor neuron (MN) fate during differentiation. These findings point to a varied, combinatorial binding of known and newly defined accessory factors as being critical for positional identity and cellular fate determination during differentiation.
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12
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Lee H, Oh G, Cho H. Prognostic Value of Donor Specific Human Leukocyte Antibodies in Pre-Sensitized Heart Transplant Patients. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
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13
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Hyun J, Youn J, Kim J, Cho H, Lee H, Kang S, Kim J, Jeon E, Choi J. Impact of Recipient Age and Ecmo or Rrt Support on Post-Heart Transplant Outcomes: An Analysis of the Korean Organ Transplant Registry. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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14
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Kim TW, Koo SY, Riessland M, Cho H, Chaudhry F, Kolisnyk B, Russo MV, Saurat N, Mehta S, Garippa R, Betel D, Studer L. TNF-NFkB-p53 axis restricts in vivo survival of hPSC-derived dopamine neuron. bioRxiv 2023:2023.03.29.534819. [PMID: 37034664 PMCID: PMC10081262 DOI: 10.1101/2023.03.29.534819] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
UNLABELLED Ongoing, first-in-human clinical trials illustrate the feasibility and translational potential of human pluripotent stem cell (hPSC)-based cell therapies in Parkinson's disease (PD). However, a major unresolved challenge in the field is the extensive cell death following transplantation with <10% of grafted dopamine neurons surviving. Here, we performed a pooled CRISPR/Cas9 screen to enhance survival of postmitotic dopamine neurons in vivo . We identified p53-mediated apoptotic cell death as major contributor to dopamine neuron loss and uncovered a causal link of TNFa-NFκB signaling in limiting cell survival. As a translationally applicable strategy to purify postmitotic dopamine neurons, we performed a cell surface marker screen that enabled purification without the need for genetic reporters. Combining cell sorting with adalimumab pretreatment, a clinically approved and widely used TNFa inhibitor, enabled efficient engraftment of postmitotic dopamine neurons leading to extensive re-innervation and functional recovery in a preclinical PD mouse model. Thus, transient TNFa inhibition presents a clinically relevant strategy to enhance survival and enable engraftment of postmitotic human PSC-derived dopamine neurons in PD. HIGHLIGHTS In vivo CRISPR-Cas9 screen identifies p53 limiting survival of grafted human dopamine neurons. TNFα-NFκB pathway mediates p53-dependent human dopamine neuron deathCell surface marker screen to enrich human dopamine neurons for translational use. FDA approved TNF-alpha inhibitor rescues in vivo dopamine neuron survival with in vivo function.
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15
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Luo R, Yan J, Oh JW, Xi W, Shigaki D, Wong W, Cho H, Murphy D, Cutler R, Rosen BP, Pulecio J, Yang D, Glenn R, Chen T, Li QV, Vierbuchen T, Sidoli S, Apostolou E, Huangfu D, Beer MA. Dynamic network-guided CRISPRi screen reveals CTCF loop-constrained nonlinear enhancer-gene regulatory activity in cell state transitions. bioRxiv 2023:2023.03.07.531569. [PMID: 36945628 PMCID: PMC10028945 DOI: 10.1101/2023.03.07.531569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Comprehensive enhancer discovery is challenging because most enhancers, especially those affected in complex diseases, have weak effects on gene expression. Our network modeling revealed that nonlinear enhancer-gene regulation during cell state transitions can be leveraged to improve the sensitivity of enhancer discovery. Utilizing hESC definitive endoderm differentiation as a dynamic transition system, we conducted a mid-transition CRISPRi-based enhancer screen. The screen discovered a comprehensive set of enhancers (4 to 9 per locus) for each of the core endoderm lineage-specifying transcription factors, and many enhancers had strong effects mid-transition but weak effects post-transition. Through integrating enhancer activity measurements and three-dimensional enhancer-promoter interaction information, we were able to develop a CTCF loop-constrained Interaction Activity (CIA) model that can better predict functional enhancers compared to models that rely on Hi-C-based enhancer-promoter contact frequency. Our study provides generalizable strategies for sensitive and more comprehensive enhancer discovery in both normal and pathological cell state transitions.
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16
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Cho H, Yoon D, Kim D, Kang KW, Kwak JY, Tan SM, Lee JO, Oh S, Do Y, Jeong S, Kang H, Koh Y, Kim H, Kim SH, Won J, Chen TY, Yang D, Chin N, Eom HS, Kim W. 206MO Treatment patterns in patients with mantle cell lymphoma: Report of the Asia-Pacific multinational retrospective registry study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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17
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Ji Y, Cho H, Seon S, Lee K, Yoon H. A deep learning model for CT-based kidney volume determination in dogs and normal reference definition. Front Vet Sci 2022; 9:1011804. [PMID: 36387402 PMCID: PMC9649823 DOI: 10.3389/fvets.2022.1011804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/13/2022] [Indexed: 10/07/2023] Open
Abstract
Kidney volume is associated with renal function and the severity of renal diseases, thus accurate assessment of the kidney is important. Although the voxel count method is reported to be more accurate than several methods, its laborious and time-consuming process is considered as a main limitation. In need of a new technology that is fast and as accurate as the manual voxel count method, the aim of this study was to develop the first deep learning model for automatic kidney detection and volume estimation from computed tomography (CT) images of dogs. A total of 182,974 image slices from 386 CT scans of 211 dogs were used to develop this deep learning model. Owing to the variance of kidney size and location in dogs compared to humans, several processing methods and an architecture based on UNEt Transformers which is known to show promising results for various medical image segmentation tasks including this study. Combined loss function and data augmentation were applied to elevate the performance of the model. The Dice similarity coefficient (DSC) which shows the similarity between manual segmentation and automated segmentation by deep-learning model was 0.915 ± 0.054 (mean ± SD) with post-processing. Kidney volume agreement analysis assessing the similarity between the kidney volume estimated by manual voxel count method and the deep-learning model was r = 0.960 (p < 0.001), 0.95 from Lin's concordance correlation coefficient (CCC), and 0.975 from the intraclass correlation coefficient (ICC). Kidney volume was positively correlated with body weight (BW), and insignificantly correlated with body conditions score (BCS), age, and sex. The correlations between BW, BCS, and kidney volume were as follows: kidney volume = 3.701 × BW + 11.962 (R 2 = 0.74, p < 0.001) and kidney volume = 19.823 × BW/BCS index + 10.705 (R 2 = 0.72, p < 0.001). The deep learning model developed in this study is useful for the automatic estimation of kidney volume. Furthermore, a reference range established in this study for CT-based normal kidney volume considering BW and BCS can be helpful in assessment of kidney in dogs.
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Affiliation(s)
- Yewon Ji
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea
| | | | | | - Kichang Lee
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea
| | - Hakyoung Yoon
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea
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18
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Medina-Cano D, Corrigan EK, Glenn RA, Islam MT, Lin Y, Kim J, Cho H, Vierbuchen T. Rapid and robust directed differentiation of mouse epiblast stem cells into definitive endoderm and forebrain organoids. Development 2022; 149:dev200561. [PMID: 35899604 PMCID: PMC10655922 DOI: 10.1242/dev.200561] [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: 01/26/2022] [Accepted: 07/04/2022] [Indexed: 11/20/2022]
Abstract
Directed differentiation of pluripotent stem cells (PSCs) is a powerful model system for deconstructing embryonic development. Although mice are the most advanced mammalian model system for genetic studies of embryonic development, state-of-the-art protocols for directed differentiation of mouse PSCs into defined lineages require additional steps and generates target cell types with lower purity than analogous protocols for human PSCs, limiting their application as models for mechanistic studies of development. Here, we examine the potential of mouse epiblast stem cells cultured in media containing Wnt pathway inhibitors as a starting point for directed differentiation. As a proof of concept, we focused our efforts on two specific cell/tissue types that have proven difficult to generate efficiently and reproducibly from mouse embryonic stem cells: definitive endoderm and neural organoids. We present new protocols for rapid generation of nearly pure definitive endoderm and forebrain-patterned neural organoids that model the development of prethalamic and hippocampal neurons. These differentiation models present new possibilities for combining mouse genetic tools with in vitro differentiation to characterize molecular and cellular mechanisms of embryonic development.
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Affiliation(s)
- Daniel Medina-Cano
- Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Center for Stem Cell Biology, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Emily K. Corrigan
- Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Center for Stem Cell Biology, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Rachel A. Glenn
- Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Center for Stem Cell Biology, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Cell and Developmental Biology Program, Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY 10065, USA
| | - Mohammed T. Islam
- Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Center for Stem Cell Biology, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Yuan Lin
- Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Center for Stem Cell Biology, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Juliet Kim
- Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Center for Stem Cell Biology, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Hyunwoo Cho
- Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Center for Stem Cell Biology, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Thomas Vierbuchen
- Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
- Center for Stem Cell Biology, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
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19
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Kim J, Park JH, Moon S, Kim S, Song J, Ahn S, Cho H. 46 The Effect of Mechanical Chest Compression Device on Survival After Out-of-Hospital Cardiac Arrest According to Patient Transport Interval: A Multi-center Observational Study. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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20
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Jin BY, Song J, Kim J, Park JH, Kim S, Cho H, Moon S, Kim DH, Ahn S. 127 Effect of Metformin on Survival Outcomes in In-Hospital Cardiac Arrest Patients With Diabetes. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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21
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Cho H, Kil E, Jang J, Kang J, Song I, Yoo Y. Air-Coupled Ultrasound Sealing Integrity Inspection Using Leaky Lamb Waves in a Simplified Model of a Lithium-Ion Pouch Battery: Feasibility Study. Sensors (Basel) 2022; 22:6718. [PMID: 36081176 PMCID: PMC9459724 DOI: 10.3390/s22176718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/31/2022] [Accepted: 09/03/2022] [Indexed: 06/15/2023]
Abstract
Inspecting the sealing integrity of lead tabs is an important means of ensuring the reliability and safety of pouch-type lithium-ion (Li-ion) batteries with a thin multi-layered aluminum (Al) laminated film. This paper presents a new air-coupled ultrasonic non-destructive testing (NDT) inspection method based on leaky Lamb wave transmission; and reception for evaluating the sealing integrity between the lead tab and the Al pouch film. The proposed method uses the critical incidence angle between the air and the layer with the fastest Lamb wave velocity to maximize the signal-to-noise ratio in the through-transmission mode. To determine the critical incidence angle, phantom experiments with two test pieces (i.e., an Al tab and an Al tab sealed with an Al pouch film) are conducted. In addition, 2D scans are performed at various incidence angles for an inhouse pouch-type Li-ion battery with a 1-mm-wide foreign material inserted as a defect. At the critical incidence angle (i.e., 22°), the proposed air-coupled ultrasonic NDT method in through-transmission mode successfully identifies the shape and location of the defect through c-scan image reconstruction. These preliminary results indicate that the proposed air-coupled ultrasonic NDT method with leaky Lamb waves can be used to inspect the sealing integrity of Li-ion pouch batteries in dry test conditions.
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Affiliation(s)
- Hyunwoo Cho
- Department of Electronic Engineering, Sogang University, Seoul 04107, Korea
| | - Eunwoo Kil
- Department of Electronic Engineering, Sogang University, Seoul 04107, Korea
| | - Jihun Jang
- Medical Solutions Institute, Sogang University, Seoul 04107, Korea
| | - Jinbum Kang
- Department of Bioengineering, University of Washington, Seattle, WA 98105, USA
| | - Ilseob Song
- Medical Solutions Institute, Sogang University, Seoul 04107, Korea
| | - Yangmo Yoo
- Department of Electronic Engineering, Sogang University, Seoul 04107, Korea
- Medical Solutions Institute, Sogang University, Seoul 04107, Korea
- Department of Biomedical Engineering, Sogang University, Seoul 04107, Korea
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22
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Cho JH, Lee SW, Yun J, Kim HO, Cho H, Song S, Oh IJ. 115P Combination of two distinct subsets of peripheral blood CD8+ T cells from patients with NSCLC predicts response outcome to immune checkpoint inhibitor therapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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23
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Kim S, Bae H, Chu J, Cho H, Choi S, Hwang K, Jo Y, Kim S. 907P A real-time histologic evaluation of gastric cancer tissue by using confocal laser endomicroscopic system. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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24
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Ju J, Han K, Ryu J, Cho H. Nurses’ attitudes toward antimicrobial stewardship in South Korea. J Hosp Infect 2022; 129:162-170. [DOI: 10.1016/j.jhin.2022.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/12/2022] [Accepted: 07/18/2022] [Indexed: 10/31/2022]
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25
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Yang D, Cho H, Tayyebi Z, Shukla A, Luo R, Dixon G, Ursu V, Stransky S, Tremmel DM, Sackett SD, Koche R, Kaplan SJ, Li QV, Park J, Zhu Z, Rosen BP, Pulecio J, Shi ZD, Bram Y, Schwartz RE, Odorico JS, Sidoli S, Wright CV, Leslie CS, Huangfu D. CRISPR screening uncovers a central requirement for HHEX in pancreatic lineage commitment and plasticity restriction. Nat Cell Biol 2022; 24:1064-1076. [PMID: 35787684 PMCID: PMC9283336 DOI: 10.1038/s41556-022-00946-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 05/25/2022] [Indexed: 01/07/2023]
Abstract
The pancreas and liver arise from a common pool of progenitors. However, the underlying mechanisms that drive their lineage diversification from the foregut endoderm are not fully understood. To tackle this question, we undertook a multifactorial approach that integrated human pluripotent-stem-cell-guided differentiation, genome-scale CRISPR-Cas9 screening, single-cell analysis, genomics and proteomics. We discovered that HHEX, a transcription factor (TF) widely recognized as a key regulator of liver development, acts as a gatekeeper of pancreatic lineage specification. HHEX deletion impaired pancreatic commitment and unleashed an unexpected degree of cellular plasticity towards the liver and duodenum fates. Mechanistically, HHEX cooperates with the pioneer TFs FOXA1, FOXA2 and GATA4, shared by both pancreas and liver differentiation programmes, to promote pancreas commitment, and this cooperation restrains the shared TFs from activating alternative lineages. These findings provide a generalizable model for how gatekeeper TFs like HHEX orchestrate lineage commitment and plasticity restriction in broad developmental contexts.
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Affiliation(s)
- Dapeng Yang
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Hyunwoo Cho
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Zakieh Tayyebi
- Computational and Systems Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA,Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA
| | - Abhijit Shukla
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Renhe Luo
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA,Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Gary Dixon
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA,Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA,Present address: Institute for Neurodegenerative Diseases, Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Valeria Ursu
- Vanderbilt University Program in Developmental Biology and Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, 37203, USA
| | - Stephanie Stransky
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | | | | | - Richard Koche
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Samuel J. Kaplan
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA,Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA
| | - Qing V. Li
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA,Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Jiwoon Park
- Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA,Division of Gastroenterology and Hepatology, Department of Medicine, Weill Medical College of Cornell University, New York, NY, 10065, USA
| | - Zengrong Zhu
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Bess P. Rosen
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA,Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA
| | - Julian Pulecio
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Zhong-Dong Shi
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Yaron Bram
- Division of Gastroenterology and Hepatology, Department of Medicine, Weill Medical College of Cornell University, New York, NY, 10065, USA
| | - Robert E. Schwartz
- Division of Gastroenterology and Hepatology, Department of Medicine, Weill Medical College of Cornell University, New York, NY, 10065, USA
| | | | - Simone Sidoli
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Christopher V. Wright
- Vanderbilt University Program in Developmental Biology and Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, 37203, USA
| | - Christina S. Leslie
- Computational and Systems Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA,Correspondence to: (DH), (CSL)
| | - Danwei Huangfu
- Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA,Correspondence to: (DH), (CSL)
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26
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Park K, Byeon J, Yang Y, Cho H. Healthcare utilisation for elderly people at the onset of the COVID-19 pandemic in South Korea. BMC Geriatr 2022; 22:395. [PMID: 35524173 PMCID: PMC9072758 DOI: 10.1186/s12877-022-03085-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 04/25/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND At the onset of the coronavirus disease 2019 (COVID-19) pandemic, health care systems were severely disrupted in many countries and in particular, elderly people vulnerable to COVID-19 may have been reluctant to receive their medical treatment. METHODS We conducted interrupted time series analyses (ITSA) using nationwide medical claim data between January 2020 and July 2020, with focus on different disease categories for the patients of 65 to 84-year-olds, i.e., acute upper respiratory infections (AURIs) vs. chronic diseases. RESULTS AURIs and chronic diseases showed a sharp contrast with respect to the change in healthcare service utilisation. First, the utilisation rate for chronic diseases changed little whereas for AURIs it dropped by 20.4% year-over-year (yoy) at the onset of the pandemic (week 6, 2020). Second, as social distancing relaxed (week 17, 2020), the AURIs patients trended up and even reached to 7.8% above yoy whereas no significant change found for chronic diseases. CONCLUSIONS The uninterrupted treatment for chronic diseases in contrast to the AURIs implies that the governmental and public responses to the pandemic outbreak worked for efficient healthcare provision to patients in needs of regular check-ups and treatment in the middle of an infectious disease crisis.
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Affiliation(s)
- K. Park
- Health Insurance Research Institute, National Health Insurance Service, Wonju, 26464 South Korea
| | - J. Byeon
- Health Insurance Research Institute, National Health Insurance Service, Wonju, 26464 South Korea
| | - Y. Yang
- Health Insurance Research Institute, National Health Insurance Service, Wonju, 26464 South Korea
| | - H. Cho
- Health Insurance Research Institute, National Health Insurance Service, Wonju, 26464 South Korea
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Lee S, Dong-Won Y, Cheon J, Lee S, Cho H, Kim I. M231 Application trial of moving average as a tool of realtime quality control of clinical chemistry. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Ortabozkoyun H, Huang PY, Cho H, Narendra V, LeRoy G, Gonzalez-Buendia E, Skok JA, Tsirigos A, Mazzoni EO, Reinberg D. CRISPR and biochemical screens identify MAZ as a cofactor in CTCF-mediated insulation at Hox clusters. Nat Genet 2022; 54:202-212. [PMID: 35145304 PMCID: PMC8837555 DOI: 10.1038/s41588-021-01008-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 02/08/2021] [Accepted: 12/22/2021] [Indexed: 12/14/2022]
Abstract
CCCTC-binding factor (CTCF) is critical to three-dimensional genome organization. Upon differentiation, CTCF insulates active and repressed genes within Hox gene clusters. We conducted a genome-wide CRISPR knockout (KO) screen to identify genes required for CTCF-boundary activity at the HoxA cluster, complemented by biochemical approaches. Among the candidates, we identified Myc-associated zinc-finger protein (MAZ) as a cofactor in CTCF insulation. MAZ colocalizes with CTCF at chromatin borders and, similar to CTCF, interacts with the cohesin subunit RAD21. MAZ KO disrupts gene expression and local contacts within topologically associating domains. Similar to CTCF motif deletions, MAZ motif deletions lead to derepression of posterior Hox genes immediately after CTCF boundaries upon differentiation, giving rise to homeotic transformations in mouse. Thus, MAZ is a factor contributing to appropriate insulation, gene expression and genomic architecture during development.
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Affiliation(s)
- Havva Ortabozkoyun
- Howard Hughes Medical Institute, NYU Grossman School of Medicine, New York, NY, USA.,Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY, USA
| | - Pin-Yao Huang
- Howard Hughes Medical Institute, NYU Grossman School of Medicine, New York, NY, USA.,Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY, USA
| | - Hyunwoo Cho
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA.,Applied Bioinformatics Laboratories, NYU Grossman School of Medicine, New York, NY, USA.,Department of Radiation Oncology, NYU Grossman School of Medicine, New York, NY, USA
| | - Varun Narendra
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gary LeRoy
- Howard Hughes Medical Institute, NYU Grossman School of Medicine, New York, NY, USA.,Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY, USA
| | - Edgar Gonzalez-Buendia
- Howard Hughes Medical Institute, NYU Grossman School of Medicine, New York, NY, USA.,Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY, USA
| | - Jane A Skok
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
| | - Aristotelis Tsirigos
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA.,Applied Bioinformatics Laboratories, NYU Grossman School of Medicine, New York, NY, USA.,Institute for Computational Medicine, NYU Grossman School of Medicine, New York, NY, USA
| | | | - Danny Reinberg
- Howard Hughes Medical Institute, NYU Grossman School of Medicine, New York, NY, USA. .,Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY, USA.
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Kim G, Rim Y, Cho H, Hyun TK. Identification and Functional Characterization of FLOWERING LOCUS T in Platycodon grandiflorus. Plants (Basel) 2022; 11:plants11030325. [PMID: 35161306 PMCID: PMC8840131 DOI: 10.3390/plants11030325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 01/21/2022] [Accepted: 01/21/2022] [Indexed: 05/20/2023]
Abstract
Platycodon grandiflorus roots have been used as a foodstuff and traditional medicine for thousands of years in East Asia. In order to increase the root development of P. grandiflorus, cultivators removed the inflorescences, suggesting the possible negative effect of flowering on root development. This indicates that the genetic improvement of P. grandiflorus by late flowering is a potential approach to increase productivity. However, nothing is known about key genes integrating multiple flowering pathways in P. grandiflorus. In order to fill this gap, we identified potential homologs of the FLOWERING LOCUS T (FT) gene in P. grandiflorus. The alignment with other FT members and phylogenetic analysis revealed that the P. grandiflorus FT (PlgFT) protein contains highly conserved functional domains and belongs to the FT-like clade. The expression analysis revealed spatial variations in the transcription of PlgFT in different organs. In addition, the expression level of PlgFT was increased by high temperature but not by photoperiodic light input signals, presumably due to lacking the CONSTANS binding motif in its promoter region. Furthermore, PlgFT induced early flowering upon its overexpression in P. grandiflorus, suggesting the functional role of PlgFT in flowering. Taken together, we functionally characterized PlgFT as a master regulator of P. grandiflorus flowering under inductive high temperature, which will serve as an important target gene for improving the root productivity.
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Affiliation(s)
- Gayeon Kim
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Korea;
| | - Yeonggil Rim
- Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 52828, Korea;
| | - Hyunwoo Cho
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Korea;
- Correspondence: (H.C.); (T.K.H.)
| | - Tae Kyung Hyun
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Korea;
- Correspondence: (H.C.); (T.K.H.)
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30
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Park KS, Kim S, Kim C, Seo JY, Cho H, Kim SD, Lee YJ, Lee J, Ha IH. A Comparative Study of the Effectiveness of Pharmacopuncture Therapy for Chronic Neck Pain: A Pragmatic, Randomized, Controlled Trial. J Clin Med 2021; 11:jcm11010012. [PMID: 35011752 PMCID: PMC8745044 DOI: 10.3390/jcm11010012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/15/2021] [Accepted: 12/18/2021] [Indexed: 11/24/2022] Open
Abstract
Background: This two-arm, parallel, pragmatic, multicenter, clinical randomized, controlled trial with a 12-week follow-up period aimed to compare the effectiveness of pharmacopuncture therapy and physical therapy strategies for chronic neck pain. Methods: Eight sessions of pharmacopuncture therapy or physical therapy were administered within 2 weeks. The primary outcome was the visual analogue scale (VAS) score for neck pain. The secondary outcomes were the scores of the Northwick Park questionnaire (NPQ), VAS score for radiating arm pain, numeric rating scale (NRS) for neck and arm bothersomeness, neck disability index (NDI), patient global impression of change (PGIC), 12-item short form health survey (SF-12), and EuroQoL 5-dimension 5-level (EQ-5D-5L) instrument. The protocol was registered with Clinicaltrials.gov (NCT04035018) and CRIS (KCT0004243). Results: We randomly allocated 101 participants with chronic neck pain to the pharmacopuncture therapy (n = 50) or physical therapy group (n = 51). At the primary endpoint (week 5) the pharmacopuncture therapy group showed significantly superior effects regarding VAS score for neck pain and arm bothersomeness, NRS for neck pain, NDI, NPQ, and PGIC compared with the physical therapy group. These effects were sustained up to 12 weeks after follow-up. Conclusion: Compared with physical therapy, pharmacopuncture therapy had superior effects on the pain and functional recovery of patients with chronic neck pain.
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Affiliation(s)
- Kyoung-Sun Park
- Jaseng Hospital of Korean Medicine, Seoul 06110, Korea; (K.-S.P.); (J.L.)
| | - Suna Kim
- Daejeon Jaseng Hospital of Korean Medicine, Daejeon 35262, Korea; (S.K.); (C.K.)
| | - Changnyun Kim
- Daejeon Jaseng Hospital of Korean Medicine, Daejeon 35262, Korea; (S.K.); (C.K.)
| | - Ji-Yeon Seo
- Bucheon Jaseng Hospital of Korean Medicine, Bucheon 14598, Korea; (J.-Y.S.); (Y.-J.L.)
| | - Hyunwoo Cho
- Haeundae Jaseng Hospital of Korean Medicine, Busan 48102, Korea; (H.C.); (S.-D.K.)
| | - Sang-Don Kim
- Haeundae Jaseng Hospital of Korean Medicine, Busan 48102, Korea; (H.C.); (S.-D.K.)
| | - Yoon-Jae Lee
- Bucheon Jaseng Hospital of Korean Medicine, Bucheon 14598, Korea; (J.-Y.S.); (Y.-J.L.)
- Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul 06110, Korea
| | - Jinho Lee
- Jaseng Hospital of Korean Medicine, Seoul 06110, Korea; (K.-S.P.); (J.L.)
| | - In-Hyuk Ha
- Bucheon Jaseng Hospital of Korean Medicine, Bucheon 14598, Korea; (J.-Y.S.); (Y.-J.L.)
- Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Seoul 06110, Korea
- Correspondence: ; Tel.: +82-2-2222-2740
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31
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Cho H, Park H, Kim IJ, Cho J. Data Augmentation of Backscatter X-ray Images for Deep Learning-Based Automatic Cargo Inspection. Sensors (Basel) 2021; 21:7294. [PMID: 34770600 PMCID: PMC8587046 DOI: 10.3390/s21217294] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 11/24/2022]
Abstract
Custom inspection using X-ray imaging is a very promising application of modern pattern recognition technology. However, the lack of data or renewal of tariff items makes the application of such technology difficult. In this paper, we present a data augmentation technique based on a new image-to-image translation method to deal with these difficulties. Unlike the conventional methods that convert a semantic label image into a realistic image, the proposed method takes a texture map with a special modification as an additional input of a generative adversarial network to reproduce domain-specific characteristics, such as background clutter or sensor-specific noise patterns. The proposed method was validated by applying it to backscatter X-ray (BSX) vehicle data augmentation. The Fréchet inception distance (FID) of the result indicates the visual quality of the translated image was significantly improved from the baseline when the texture parameters were used. Additionally, in terms of data augmentation, the experimental results of classification, segmentation, and detection show that the use of the translated image data, along with the real data consistently, improved the performance of the trained models. Our findings show that detailed depiction of the texture in translated images is crucial for data augmentation. Considering the comparatively few studies that have examined custom inspections of container scale goods, such as cars, we believe that this study will facilitate research on the automation of container screening, and the security of aviation and ports.
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Affiliation(s)
- Hyunwoo Cho
- Center for Artificial Intelligence, Korea Institute of Science and Technology, Seoul 02792, Korea; (H.C.); (H.P.); (I.-J.K.)
| | - Haesol Park
- Center for Artificial Intelligence, Korea Institute of Science and Technology, Seoul 02792, Korea; (H.C.); (H.P.); (I.-J.K.)
| | - Ig-Jae Kim
- Center for Artificial Intelligence, Korea Institute of Science and Technology, Seoul 02792, Korea; (H.C.); (H.P.); (I.-J.K.)
- Division of Nano & Information Technology, KIST School, University of Science and Technology, Seoul 02792, Korea
| | - Junghyun Cho
- Center for Artificial Intelligence, Korea Institute of Science and Technology, Seoul 02792, Korea; (H.C.); (H.P.); (I.-J.K.)
- Division of Nano & Information Technology, KIST School, University of Science and Technology, Seoul 02792, Korea
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Hu H, Khodadadi-Jamayran A, Dolgalev I, Cho H, Badri S, Chiriboga LA, Zeck B, Lopez De Rodas Gregorio M, Dowling CM, Labbe K, Deng J, Chen T, Zhang H, Zappile P, Chen Z, Ueberheide B, Karatza A, Han H, Ranieri M, Tang S, Jour G, Osman I, Sucker A, Schadendorf D, Tsirigos A, Schalper KA, Velcheti V, Huang HY, Jin Y, Ji H, Poirier JT, Li F, Wong KK. Targeting the Atf7ip-Setdb1 Complex Augments Antitumor Immunity by Boosting Tumor Immunogenicity. Cancer Immunol Res 2021; 9:1298-1315. [PMID: 34462284 PMCID: PMC9414288 DOI: 10.1158/2326-6066.cir-21-0543] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/20/2021] [Accepted: 08/26/2021] [Indexed: 01/07/2023]
Abstract
Substantial progress has been made in understanding how tumors escape immune surveillance. However, few measures to counteract tumor immune evasion have been developed. Suppression of tumor antigen expression is a common adaptive mechanism that cancers use to evade detection and destruction by the immune system. Epigenetic modifications play a critical role in various aspects of immune invasion, including the regulation of tumor antigen expression. To identify epigenetic regulators of tumor antigen expression, we established a transplantable syngeneic tumor model of immune escape with silenced antigen expression and used this system as a platform for a CRISPR-Cas9 suppressor screen for genes encoding epigenetic modifiers. We found that disruption of the genes encoding either of the chromatin modifiers activating transcription factor 7-interacting protein (Atf7ip) or its interacting partner SET domain bifurcated histone lysine methyltransferase 1 (Setdb1) in tumor cells restored tumor antigen expression. This resulted in augmented tumor immunogenicity concomitant with elevated endogenous retroviral (ERV) antigens and mRNA intron retention. ERV disinhibition was associated with a robust type I interferon response and increased T-cell infiltration, leading to rejection of cells lacking intact Atf7ip or Setdb1. ATF7IP or SETDB1 expression inversely correlated with antigen processing and presentation pathways, interferon signaling, and T-cell infiltration and cytotoxicity in human cancers. Our results provide a rationale for targeting Atf7ip or Setdb1 in cancer immunotherapy.
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Affiliation(s)
- Hai Hu
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Alireza Khodadadi-Jamayran
- Division of Advanced Research Technologies, Applied Bioinformatics Laboratories and Genome Technology Center, NYU School of Medicine, New York, New York
| | - Igor Dolgalev
- Division of Advanced Research Technologies, Applied Bioinformatics Laboratories and Genome Technology Center, NYU School of Medicine, New York, New York.,Department of Pathology, NYU School of Medicine, New York, New York
| | - Hyunwoo Cho
- Division of Advanced Research Technologies, Applied Bioinformatics Laboratories and Genome Technology Center, NYU School of Medicine, New York, New York.,Department of Pathology, NYU School of Medicine, New York, New York.,Department of Radiation Oncology, NYU School of Medicine, New York, New York
| | - Sana Badri
- Department of Pathology, NYU School of Medicine, New York, New York
| | | | - Briana Zeck
- Department of Pathology, NYU School of Medicine, New York, New York
| | | | - Catríona M. Dowling
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York.,School of Medicine, University of Limerick, Limerick, Ireland
| | - Kristen Labbe
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Jiehui Deng
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Ting Chen
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Hua Zhang
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Paul Zappile
- Division of Advanced Research Technologies, Genome Technology Center, NYU School of Medicine, New York, New York
| | - Ze Chen
- Department of Medicine, NYU School of Medicine, New York
| | | | - Angeliki Karatza
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Han Han
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Michela Ranieri
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Sittinon Tang
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - George Jour
- Department of Pathology, NYU School of Medicine, New York, New York
| | - Iman Osman
- Department of Dermatology, NYU School of Medicine, New York, New York
| | - Antje Sucker
- Department of Dermatology, University Hospital, Essen, Germany
| | | | - Aristotelis Tsirigos
- Division of Advanced Research Technologies, Applied Bioinformatics Laboratories and Genome Technology Center, NYU School of Medicine, New York, New York.,Department of Pathology, NYU School of Medicine, New York, New York
| | - Kurt A. Schalper
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Vamsidhar Velcheti
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Hsin-yi Huang
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Yujuan Jin
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Hongbin Ji
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.,School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - John T. Poirier
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York
| | - Fei Li
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Corresponding Authors: Kwok-Kin Wong, Perlmutter Cancer Center, New York University Langone Medical Center, NYU School of Medicine, 550 1st Avenue, Smilow 1011, New York, NY 10016. Phone: 212-263-9203; E-mail: ; and Fei Li, Department of Pathology, School of Basic Medical Sciences, Fudan University, Room 208, East Building 1, 131 Dong'an Road, Xuhui District, Shanghai 200032, China. Phone: 86 15202100163; E-mail:
| | - Kwok-Kin Wong
- Division of Hematology and Medical Oncology, Laura and Isaac Perlmutter Cancer Center, NYU School of Medicine, New York, New York.,Corresponding Authors: Kwok-Kin Wong, Perlmutter Cancer Center, New York University Langone Medical Center, NYU School of Medicine, 550 1st Avenue, Smilow 1011, New York, NY 10016. Phone: 212-263-9203; E-mail: ; and Fei Li, Department of Pathology, School of Basic Medical Sciences, Fudan University, Room 208, East Building 1, 131 Dong'an Road, Xuhui District, Shanghai 200032, China. Phone: 86 15202100163; E-mail:
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Duan S, Moro L, Qu R, Simoneschi D, Cho H, Jiang S, Zhao H, Chang Q, de Stanchina E, Arbini AA, Pagano M. Loss of FBXO31-mediated degradation of DUSP6 dysregulates ERK and PI3K-AKT signaling and promotes prostate tumorigenesis. Cell Rep 2021; 37:109870. [PMID: 34686346 PMCID: PMC8577224 DOI: 10.1016/j.celrep.2021.109870] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/12/2021] [Accepted: 09/29/2021] [Indexed: 02/07/2023] Open
Abstract
FBXO31 is the substrate receptor of one of many CUL1-RING ubiquitin ligase (CRL1) complexes. Here, we show that low FBXO31 mRNA levels are associated with high pre-operative prostate-specific antigen (PSA) levels and Gleason grade in human prostate cancer. Mechanistically, the ubiquitin ligase CRL1FBXO31 promotes the ubiquitylation-mediated degradation of DUSP6, a dual specificity phosphatase that dephosphorylates and inactivates the extracellular-signal-regulated kinase-1 and -2 (ERK1/2). Depletion of FBXO31 stabilizes DUSP6, suppresses ERK signaling, and activates the PI3K-AKT signaling cascade. Moreover, deletion of FBXO31 promotes tumor development in a mouse orthotopic model of prostate cancer. Treatment with BCI, a small molecule inhibitor of DUSP6, suppresses AKT activation and prevents tumor formation, suggesting that the FBXO31 tumor suppressor activity is dependent on DUSP6. Taken together, our studies highlight the relevance of the FBXO31-DUSP6 axis in the regulation of ERK- and PI3K-AKT-mediated signaling pathways, as well as its therapeutic potential in prostate cancer.
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Affiliation(s)
- Shanshan Duan
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Loredana Moro
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Rui Qu
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Daniele Simoneschi
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Hyunwoo Cho
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Shaowen Jiang
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Huiyong Zhao
- Program in Molecular Pharmacology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Qing Chang
- Program in Molecular Pharmacology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Elisa de Stanchina
- Program in Molecular Pharmacology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Arnaldo A Arbini
- Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Department of Pathology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA
| | - Michele Pagano
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA; Howard Hughes Medical Institute, NYU Grossman School of Medicine, The Alexandria Center for Life Science, New York, NY 10016, USA.
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Cho H, Jo S, Kim I, Kim D. Film-Sponge-Coupled Triboelectric Nanogenerator with Enhanced Contact Area Based on Direct Ultraviolet Laser Ablation. ACS Appl Mater Interfaces 2021; 13:48281-48291. [PMID: 34585913 DOI: 10.1021/acsami.1c14572] [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: 06/13/2023]
Abstract
Triboelectric nanogenerators (TENGs) recently have emerged as applicable and eco-friendly harvesting devices. Numerous studies have been actively conducted to fabricate a flexible and robust TENG with high-output performance. Herein, a film-sponge-coupled TENG (FS-TENG) is proposed using direct ultraviolet laser ablation, as a method for surface modification of a polyimide (PI) film. This state-of-the-art method has advantages of accuracy as well as time efficiency in creating the pattern on the surface; thus, the pre-designed patterns can be precisely constructed within only a minute. In the laser-ablated PI film, the structural design and chemical modification on the surface are investigated related to the triboelectric output performance. Thereafter, a sponge is fabricated based on non-woven polyamide and silicone rubber, which can fully contact with the micro-/nano-scaled structure on the surface of the PI film. After an optimization, the FS-TENG exhibits 48.19 V of open-circuit voltage and 1.243 μA of short-circuit current, which shows approximately 3 times enhanced electric performance compared to the FS-TENG using a pristine PI film. The FS-TENG device demonstrates its robustness through both mechanical stress and flexible stress by showing less than 5% degradation after 50,000 cycles. On the basis of the high flexibility and stability of the FS-TENG, a self-powered scoreboard is successfully developed for lighting a scoreboard in a soccer field. This feasible lighting system can be operated by harvesting the kinetic energy of a soccer player without an additional power source. The novel FS-TENG, thus, provides remarkable potential for a self-powered indoor harvesting system.
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Affiliation(s)
- Hyunwoo Cho
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Seungju Jo
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Inkyum Kim
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
| | - Daewon Kim
- Department of Electronic Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
- Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea
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Cho H, Park Y, Seok J, Yeom JS, Choi JY, Kim HJ, Kang YA, Lee J. Predicting the impact of control strategies on the tuberculosis burden in South and North Korea using a mathematical model. BMJ Glob Health 2021; 6:bmjgh-2021-005953. [PMID: 34620614 PMCID: PMC8499335 DOI: 10.1136/bmjgh-2021-005953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 09/14/2021] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Among high-income countries, South Korea has a considerable tuberculosis (TB) burden; North Korea has one of the highest TB burdens in the world. Predicting the impact of control strategies on the TB burden can help to efficiently implement TB control programmes. METHODS We designed a deterministic compartmental model of TB in Korea. After calibration with notification of incidence data from South Korea, the TB burden for 2040 was predicted according to four different intervention strategies: latent TB infection (LTBI) treatment, rapid diagnosis, active case-finding and improvement of the treatment success rate. North Korea's burden in 2040 was similarly estimated by adjusting the model parameters. RESULTS In South Korea, the number of patients with drug-susceptible TB (DS-TB) and multidrug-resistant TB (MDR-TB) were predicted to be 27 581 and 625, respectively, in 2025. Active case-finding would lower DS-TB by 6.2% and MDR-TB by 26.7%, respectively, in 2040. The improvement in the success rate of DS-TB treatment would reduce the MDR-TB burden by 34.5%. In North Korea, the number of patients with DS-TB and MDR-TB are, respectively, predicted to be 77 629 and 5409 in 2025. Active case-finding would reduce DS-TB by 22.2% and MDR-TB by 69.7%. LTBI treatment would reduce DS-TB by 20.6% and MDR-TB by 38.6%. CONCLUSION The impact of control strategies on the TB burden in South and North Korea was investigated using a mathematical model. The combined intervention strategies would reduce the burden and active case-finding is expected to result in considerable reduction in both South and North Korea.
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Affiliation(s)
- Hyunwoo Cho
- School of Mathematics and Computing, Yonsei University, Seodaemun-gu, South Korea
| | - Youngmok Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seodaemun-gu, South Korea
| | - Jeongjoo Seok
- School of Mathematics and Computing, Yonsei University, Seodaemun-gu, South Korea
| | - Joon Sup Yeom
- Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Jun Yong Choi
- Department of Internal Medicine, Yonsei University College of Medicine, Seodaemun-gu, South Korea
| | - Hee Jin Kim
- Korean National Tuberculosis Association, Seoul, South Korea
| | - Young Ae Kang
- Department of Internal Medicine, Yonsei University College of Medicine, Seodaemun-gu, South Korea .,Institute of Immunology and Immunological Disease, Yonsei University College of Medicine, Seoul, South Korea
| | - Jeehyun Lee
- School of Mathematics and Computing, Yonsei University, Seodaemun-gu, South Korea
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Terashima M, Sano T, Mizusawa J, Uemura K, Tokunaga M, Omori T, Cho H, Hasegawa Y, Akiyama Y, Tsujitani H, Kawashima Y, Kawachi Y, Lee S, Boku N, Yoshikawa T, Sasako M. 1417P Prediction of the peritoneal recurrence by macroscopic diagnosis of the serosal invasion in gastric cancer: Supplementary analysis of JCOG0110 study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Cho H, Kim G, Lee S. Structural analysis of a tetradecameric HSP100 chaperone by cryo-EM and SAXS. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321088243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Kim S, Cho H, Bang D, De Marchi D, El-Zaatari H, Shah KS, Valancius M, Zikry TM, Kosorok MR. Discussion of ‘Estimating time-varying causal excursion effects in mobile health with binary outcomes’. Biometrika 2021. [DOI: 10.1093/biomet/asaa094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Summary
In this discussion, we examine the contributions of Qian et al. (2021) and potential applications of the newly developed estimator for the causal excursion effect in binary outcome data. Specifically, we consider extension of their method to count outcomes and observational data, propose an alternative use of their method for analysing excursion effect trajectories and discuss ways of improving estimator efficiency.
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Affiliation(s)
- S Kim
- Department of Biostatistics, University of North Carolina, Chapel Hill, 3101 McGavran-Greenberg Hall, Chapel Hill, North Carolina 27599, U.S.A
| | - H Cho
- Department of Biostatistics, University of North Carolina, Chapel Hill, 3101 McGavran-Greenberg Hall, Chapel Hill, North Carolina 27599, U.S.A
| | - D Bang
- Ancestry, 153 Townsend St, San Francisco, California 94129, U.S.A
| | - D De Marchi
- Department of Biostatistics, University of North Carolina, Chapel Hill, 3101 McGavran-Greenberg Hall, Chapel Hill, North Carolina 27599, U.S.A
| | - H El-Zaatari
- Department of Biostatistics, University of North Carolina, Chapel Hill, 3101 McGavran-Greenberg Hall, Chapel Hill, North Carolina 27599, U.S.A
| | - K S Shah
- Department of Biostatistics, University of North Carolina, Chapel Hill, 3101 McGavran-Greenberg Hall, Chapel Hill, North Carolina 27599, U.S.A
| | - M Valancius
- Department of Biostatistics, University of North Carolina, Chapel Hill, 3101 McGavran-Greenberg Hall, Chapel Hill, North Carolina 27599, U.S.A
| | - T M Zikry
- Department of Biostatistics, University of North Carolina, Chapel Hill, 3101 McGavran-Greenberg Hall, Chapel Hill, North Carolina 27599, U.S.A
| | - M R Kosorok
- Department of Biostatistics, University of North Carolina, Chapel Hill, 3101 McGavran-Greenberg Hall, Chapel Hill, North Carolina 27599, U.S.A
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Cho H, Kishikawa T, Tokita Y, Suzuki M, Takemoto N, Hanamoto A, Fukusumi T, Yamamoto M, Fujii M, Ohno Y, Inohara H. Corrigendum to "Prevalence of human papillomavirus in oral gargles and tonsillar washings" [Oral Oncol. 105 (2020) 104669]. Oral Oncol 2021; 120:105478. [PMID: 34366245 DOI: 10.1016/j.oraloncology.2021.105478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- H Cho
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
| | - T Kishikawa
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
| | - Y Tokita
- Department of Mathematical Health Science, Osaka University Graduate School of Medicine, Suita, Japan; Department of Nursing, Kyoto Tachibana University, Kyoto, Japan.
| | - M Suzuki
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
| | - N Takemoto
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
| | - A Hanamoto
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
| | - T Fukusumi
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
| | - M Yamamoto
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
| | - M Fujii
- Department of Mathematical Health Science, Osaka University Graduate School of Medicine, Suita, Japan.
| | - Y Ohno
- Department of Mathematical Health Science, Osaka University Graduate School of Medicine, Suita, Japan.
| | - H Inohara
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita, Japan.
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An H, Lee HY, Shin H, Bang JH, Han S, Oh YL, Jang KY, Cho H, Hyun TK, Sung J, So YS, Jo IH, Chung JW. Evaluation of Genetic Diversity and Population Structure Analysis among Germplasm of Agaricus bisporus by SSR Markers. Mycobiology 2021; 49:376-384. [PMID: 34512081 PMCID: PMC8409946 DOI: 10.1080/12298093.2021.1940746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
Agaricus bisporus is a popular edible mushroom that is cultivated worldwide. Due to its secondary homothallic nature, cultivated A. bisporus strains have low genetic diversity, and breeding novel strains is challenging. The aim of this study was to investigate the genetic diversity and population structure of globally collected A. bisporus strains using simple sequence repeat (SSR) markers. Agaricus bisporus strains were divided based on genetic distance-based groups and model-based subpopulations. The major allele frequency (MAF), number of genotypes (NG), number of alleles (NA), observed heterozygosity (HO), expected heterozygosity (HE), and polymorphic information content (PIC) were calculated, and genetic distance, population structure, genetic differentiation, and Hardy-Weinberg equilibrium (HWE) were assessed. Strains were divided into two groups by distance-based analysis and into three subpopulations by model-based analysis. Strains in subpopulations POP A and POP B were included in Group I, and strains in subpopulation POP C were included in Group II. Genetic differentiation between strains was 99%. Marker AB-gSSR-1057 in Group II and subpopulation POP C was confirmed to be in HWE. These results will enhance A. bisporus breeding programs and support the protection of genetic resources.
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Affiliation(s)
- Hyejin An
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Hwa-Yong Lee
- Department of Forest Science, Chungbuk National University, Cheongju, Republic of Korea
| | - Hyeran Shin
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Jun Hyoung Bang
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Seahee Han
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Youn-Lee Oh
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, Eumseong, Republic of Korea
| | - Kab-Yeul Jang
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, Eumseong, Republic of Korea
| | - Hyunwoo Cho
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Tae Kyung Hyun
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, Republic of Korea
| | - Jwakyung Sung
- Department of Crop Science, Chungbuk National University, Cheongju, Republic of Korea
| | - Yoon-Sup So
- Department of Crop Science, Chungbuk National University, Cheongju, Republic of Korea
| | - Ick-Hyun Jo
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, Eumseong, Republic of Korea
| | - Jong-Wook Chung
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, Republic of Korea
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Park J, Lee S, Park G, Cho H, Choi D, Umeda M, Choi Y, Hwang D, Hwang I. CYTOKININ-RESPONSIVE GROWTH REGULATOR regulates cell expansion and cytokinin-mediated cell cycle progression. Plant Physiol 2021; 186:1734-1746. [PMID: 33909905 PMCID: PMC8260111 DOI: 10.1093/plphys/kiab180] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 03/31/2021] [Indexed: 05/23/2023]
Abstract
The cytokinin (CK) phytohormones have long been known to activate cell proliferation in plants. However, how CKs regulate cell division and cell expansion remains unclear. Here, we reveal that a basic helix-loop-helix transcription factor, CYTOKININ-RESPONSIVE GROWTH REGULATOR (CKG), mediates CK-dependent regulation of cell expansion and cell cycle progression in Arabidopsis thaliana. The overexpression of CKG increased cell size in a ploidy-independent manner and promoted entry into the S phase of the cell cycle, especially at the seedling stage. Furthermore, CKG enhanced organ growth in a pleiotropic fashion, from embryogenesis to reproductive stages, particularly of cotyledons. In contrast, ckg loss-of-function mutants exhibited smaller cotyledons. CKG mainly regulates the expression of genes involved in the regulation of the cell cycle including WEE1. We propose that CKG provides a regulatory module that connects cell cycle progression and organ growth to CK responses.
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Affiliation(s)
- Joonghyuk Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Seungchul Lee
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Geuntae Park
- School of Biological Sciences, Seoul National University, Seoul 151-747, Korea
| | - Hyunwoo Cho
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Daeseok Choi
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Masaaki Umeda
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Takayama 8916-5, Ikoma, Nara 630-0192, Japan
| | - Yeonhee Choi
- School of Biological Sciences, Seoul National University, Seoul 151-747, Korea
| | - Daehee Hwang
- School of Biological Sciences, Seoul National University, Seoul 151-747, Korea
| | - Ildoo Hwang
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673, Korea
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Blatchley MR, Hall F, Ntekoumes D, Cho H, Kailash V, Vazquez‐Duhalt R, Gerecht S. Discretizing Three-Dimensional Oxygen Gradients to Modulate and Investigate Cellular Processes. Adv Sci (Weinh) 2021; 8:e2100190. [PMID: 34151527 PMCID: PMC8292886 DOI: 10.1002/advs.202100190] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 05/05/2021] [Indexed: 05/26/2023]
Abstract
With the increased realization of the effect of oxygen (O2 ) deprivation (hypoxia) on cellular processes, recent efforts have focused on the development of engineered systems to control O2 concentrations and establish biomimetic O2 gradients to study and manipulate cellular behavior. Nonetheless, O2 gradients present in 3D engineered platforms result in diverse cell behavior across the O2 gradient, making it difficult to identify and study O2 sensitive signaling pathways. Using a layer-by-layer assembled O2 -controllable hydrogel, the authors precisely control O2 concentrations and study uniform cell behavior in discretized O2 gradients, then recapitulate the dynamics of cluster-based vasculogenesis, one mechanism for neovessel formation, and show distinctive gene expression patterns remarkably correlate to O2 concentrations. Using RNA sequencing, it is found that time-dependent regulation of cyclic adenosine monophosphate signaling enables cell survival and clustering in the high stress microenvironments. Various extracellular matrix modulators orchestrate hypoxia-driven endothelial cell clustering. Finally, clustering is facilitated by regulators of cell-cell interactions, mainly vascular cell adhesion molecule 1. Taken together, novel regulators of hypoxic cluster-based vasculogenesis are identified, and evidence for the utility of a unique platform is provided to study dynamic cellular responses to 3D hypoxic environments, with broad applicability in development, regeneration, and disease.
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Affiliation(s)
- Michael R. Blatchley
- Department of Biomedical EngineeringJohns Hopkins UniversityBaltimoreMD21218USA
- Department of Chemical and Biomolecular EngineeringInstitute for NanoBioTechnology and Johns Hopkins Physical Sciences‐Oncology CenterJohns Hopkins UniversityBaltimoreMD21218USA
| | - Franklyn Hall
- Department of Biomedical EngineeringJohns Hopkins UniversityBaltimoreMD21218USA
- Department of Chemical and Biomolecular EngineeringInstitute for NanoBioTechnology and Johns Hopkins Physical Sciences‐Oncology CenterJohns Hopkins UniversityBaltimoreMD21218USA
| | - Dimitris Ntekoumes
- Department of Chemical and Biomolecular EngineeringInstitute for NanoBioTechnology and Johns Hopkins Physical Sciences‐Oncology CenterJohns Hopkins UniversityBaltimoreMD21218USA
| | - Hyunwoo Cho
- Department of Chemical and Biomolecular EngineeringInstitute for NanoBioTechnology and Johns Hopkins Physical Sciences‐Oncology CenterJohns Hopkins UniversityBaltimoreMD21218USA
| | - Vidur Kailash
- Department of BiophysicsJohns Hopkins UniversityBaltimoreMD21218USA
| | - Rafael Vazquez‐Duhalt
- Department of BionanotechnologyCenter for Nanosciences and NanotechnologyNational Autonomous University of MexicoEnsenadaBaja California22800Mexico
| | - Sharon Gerecht
- Department of Biomedical EngineeringJohns Hopkins UniversityBaltimoreMD21218USA
- Department of Chemical and Biomolecular EngineeringInstitute for NanoBioTechnology and Johns Hopkins Physical Sciences‐Oncology CenterJohns Hopkins UniversityBaltimoreMD21218USA
- Department of Materials Science and EngineeringJohns Hopkins UniversityBaltimoreMD21218USA
- Department of OncologyJohns Hopkins University School of MedicineBaltimoreMD21205USA
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Kumagai K, Yagi S, Yamaguchi T, Nagashima K, Nomura T, Watanabe M, Makuuchi R, Kawakami K, Otsuka S, Matsushima T, Kadowaki S, Haruta S, Cho H, Yamada T, Kakihara N, Imai Y, Fukunaga H, Saeki Y, Kanaji S, Boku N, Goto M. P-83 The efficacy of chemotherapy for gastric cancer with early recurrence during or after adjuvant S-1. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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45
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Kim HJ, Cho H, Park M, Kim JW, Ahn SJ, Lyoo CH, Suh SH, Ryu YH. MRI-Visible Perivascular Spaces in the Centrum Semiovale Are Associated with Brain Amyloid Deposition in Patients with Alzheimer Disease-Related Cognitive Impairment. AJNR Am J Neuroradiol 2021; 42:1231-1238. [PMID: 33985952 DOI: 10.3174/ajnr.a7155] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 01/21/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The association of perivascular spaces in the centrum semiovale with amyloid accumulation among patients with Alzheimer disease-related cognitive impairment is unknown. We evaluated this association in patients with Alzheimer disease-related cognitive impairment and β-amyloid deposition, assessed with [18F] florbetaben PET/CT. MATERIALS AND METHODS MR imaging and [18F] florbetaben PET/CT images of 144 patients with Alzheimer disease-related cognitive impairment were retrospectively evaluated. MR imaging-visible perivascular spaces were rated on a 4-point visual scale: a score of ≥3 or <3 indicated a high or low degree of MR imaging-visible perivascular spaces, respectively. Amyloid deposition was evaluated using the brain β-amyloid plaque load scoring system. RESULTS Compared with patients negative for β-amyloid, those positive for it were older and more likely to have lower cognitive function, a diagnosis of Alzheimer disease, white matter hyperintensity, the Apolipoprotein E ε4 allele, and a high degree of MR imaging-visible perivascular spaces in the centrum semiovale. Multivariable analysis, adjusted for age and Apolipoprotein E status, revealed that a high degree of MR imaging-visible perivascular spaces in the centrum semiovale was independently associated with β-amyloid positivity (odds ratio, 2.307; 95% CI, 1.036-5.136; P = .041). CONCLUSIONS A high degree of MR imaging-visible perivascular spaces in the centrum semiovale independently predicted β-amyloid positivity in patients with Alzheimer disease-related cognitive impairment. Thus, MR imaging-visible perivascular spaces in the centrum semiovale are associated with amyloid pathology of the brain and could be an indirect imaging marker of amyloid burden in patients with Alzheimer disease-related cognitive impairment.
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Affiliation(s)
- H J Kim
- From the Department of Nuclear Medicine (H.J.K., Y.H.R.)
- Department of Nuclear Medicine (H.J.K.), Yongin Severance Hospital, Yonsei University College of Medicine, Yongin-si, South Korea
| | | | - M Park
- Radiology (M.P., J.W.K., S.J.A., S.H.S.), Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - J W Kim
- Radiology (M.P., J.W.K., S.J.A., S.H.S.), Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - S J Ahn
- Radiology (M.P., J.W.K., S.J.A., S.H.S.), Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | | | - S H Suh
- Radiology (M.P., J.W.K., S.J.A., S.H.S.), Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Y H Ryu
- From the Department of Nuclear Medicine (H.J.K., Y.H.R.)
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An H, Lee HY, Shim D, Choi SH, Cho H, Hyun TK, Jo IH, Chung JW. Development of CAPS Markers for Evaluation of Genetic Diversity and Population Structure in the Germplasm of Button Mushroom ( Agaricus bisporus). J Fungi (Basel) 2021; 7:375. [PMID: 34064696 PMCID: PMC8151297 DOI: 10.3390/jof7050375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/04/2021] [Accepted: 05/10/2021] [Indexed: 01/24/2023] Open
Abstract
Agaricus bisporus is a globally cultivated mushroom with high economic value. Despite its widespread cultivation, commercial button mushroom strains have little genetic diversity and discrimination of strains for identification and breeding purposes is challenging. Molecular markers suitable for diversity analyses of germplasms with similar genotypes and discrimination between accessions are needed to support the development of new varieties. To develop cleaved amplified polymorphic sequences (CAPs) markers, single nucleotide polymorphism (SNP) mining was performed based on the A. bisporus genome and resequencing data. A total of 70 sets of CAPs markers were developed and applied to 41 A. bisporus accessions for diversity, multivariate, and population structure analyses. Of the 70 SNPs, 62.85% (44/70) were transitions (G/A or C/T) and 37.15% (26/70) were transversions (A/C, A/T, C/G, or G/T). The number of alleles per locus was 1 or 2 (average = 1.9), and expected heterozygosity and gene diversity were 0.0-0.499 (mean = 0.265) and 0.0-0.9367 (mean = 0.3599), respectively. Multivariate and cluster analyses of accessions produced similar groups, with F-statistic values of 0.134 and 0.153 for distance-based and model-based groups, respectively. A minimum set of 10 markers optimized for accession identification were selected based on high index of genetic diversity (GD, range 0.299-0.499) and major allele frequency (MAF, range 0.524-0.817). The CAPS markers can be used to evaluate genetic diversity and population structure and will facilitate the management of emerging genetic resources.
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Affiliation(s)
- Hyejin An
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Korea; (H.A.); (H.C.); (T.K.H.)
| | - Hwa-Yong Lee
- Department of Forest Science, Chungbuk National University, Cheongju 28644, Korea;
| | - Donghwan Shim
- Department of Biological Science, Chungnam National University, Daejeon 34134, Korea;
| | - Seong Ho Choi
- Department of Animal Science, Chungbuk National University, Cheongju 28644, Korea;
| | - Hyunwoo Cho
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Korea; (H.A.); (H.C.); (T.K.H.)
| | - Tae Kyung Hyun
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Korea; (H.A.); (H.C.); (T.K.H.)
| | - Ick-Hyun Jo
- National Institute of Horticultural and Herbal Science, RDA, Eumseong 27709, Korea
| | - Jong-Wook Chung
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju 28644, Korea; (H.A.); (H.C.); (T.K.H.)
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Lee J, Kim H, Park SG, Hwang H, Yoo SI, Bae W, Kim E, Kim J, Lee HY, Heo TY, Kang KK, Lee Y, Hong CP, Cho H, Ryu H. Brassinosteroid-BZR1/2-WAT1 module determines the high level of auxin signalling in vascular cambium during wood formation. New Phytol 2021; 230:1503-1516. [PMID: 33570747 DOI: 10.1111/nph.17265] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
The tight regulation of local auxin homeostasis and signalling maxima in xylem precursor cells specifies the organising activity of the vascular cambium and consequently promotes xylem differentiation and wood formation. However, the molecular mechanisms underlying the local auxin signalling maxima in the vascular cambium are largely unknown. Here, we reveal that brassinosteroid (BR)-activated WALLS ARE THIN1 (WAT1) facilitates wood formation by enhancing local auxin signalling in the vascular cambium in Solanum lycopersicum. Growth defects and low auxin signalling readouts in the BR-deficient tomato cultivar, Micro-Tom, were associated with a novel recessive allele, Slwat1-copi, created by the insertion of a retrotransposon in the last exon of the SlWAT1 locus. Molecular and genetic studies by generating the gain-of-function and loss-of-function tomato mutants revealed that SlWAT1 is a critical regulator for fine tuning local auxin homeostasis and signalling outputs in vascular cambium to facilitate secondary growth. Finally, we discovered that BR-regulated SlBZR1/2 directly activated downstream auxin responses by SlWAT1 upregulation in xylem precursor cells to facilitate xylem differentiation and subsequent wood formation. Our data suggest that the BR-SlBZR1/2-WAT1 signalling network contributes to the high level of auxin signalling in the vascular cambium for secondary growth.
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Affiliation(s)
- Jinsu Lee
- Department of Biology, Chungbuk National University, Cheongju, 28644, Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Korea
| | - Hyemin Kim
- Department of Biology, Chungbuk National University, Cheongju, 28644, Korea
| | | | - Hyeona Hwang
- Department of Biology, Chungbuk National University, Cheongju, 28644, Korea
| | | | - Wonsil Bae
- Department of Biology, Chungbuk National University, Cheongju, 28644, Korea
| | - Eunhui Kim
- Department of Biology, Chungbuk National University, Cheongju, 28644, Korea
| | - Jaehoon Kim
- Department of Information and Statistics, Chungbuk National University, Cheongju, 28644, Korea
| | - Hwa-Yong Lee
- Department of Forest Science, Chungbuk National University, Cheongju, 28644, Korea
| | - Tae-Young Heo
- Department of Information and Statistics, Chungbuk National University, Cheongju, 28644, Korea
| | - Kwon Kyoo Kang
- Department of Horticulture, Hankyong National University, Ansung, 17579, Korea
| | - Yuree Lee
- School of Biological Sciences, Seoul National University, Seoul, 08826, Korea
| | | | - Hyunwoo Cho
- Department of Industrial Plant Science and Technology, Chungbuk National University, Cheongju, 28644, Korea
| | - Hojin Ryu
- Department of Biology, Chungbuk National University, Cheongju, 28644, Korea
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Park C, Oh H, Kim M, Kim B, Cho H, Oh I, Kim Y. P34.08 Circulating Tumor Cell as a Predictive Marker for Immunotherapy in Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yoon SH, Yang S, Cho H, Eun S, Koo CM, Kim MK. Point-of-care testing for the detection of SARS-CoV-2: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2021; 25:503-517. [PMID: 33506942 DOI: 10.26355/eurrev_202101_24422] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To evaluate the diagnostic accuracy of the Food and Drug Administration Emergency Use Authorization (FDA-EUA) authorized point-of-care tests (POCTs) for the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). MATERIALS AND METHODS A systematic literature search was conducted using the PubMed, Embase, and Web of Science databases for articles published till August 10, 2020. We included studies providing information regarding diagnostic test accuracy of FDA-EUA POCTs for SARS-CoV-2 detection. The methodologic quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 tool. The review protocol is registered in the International Prospective Register of Systematic Reviews (protocol number CRD42020202248). RESULTS We included 26 studies describing a total of 3242 samples. The summary sensitivity and specificity were 0.94 [95% confidence interval (CI): 0.88-0.97] and 1.00 (95% CI: 0.99-1.00), respectively. The area under the summary receiver operating characteristic curve was 1.00 (95% CI: 0.99-1.00). A pooled analysis based on the index test revealed a summary sensitivity and specificity of Cepheid Xpert Xpress SARS-CoV-2 [0.99 (95% CI: 0.97-1.00) and 0.99 (95% CI: 0.94-1.00, respectively)] and ID NOW COVID-19 [0.78 (95% CI: 0.74-0.82) and 1.00 (95% CI: 0.98-1.00), respectively]. CONCLUSIONS FDA-EUA POCTs, especially molecular assays, have high sensitivity, specificity, and overall diagnostic accuracy for detecting SARS-CoV-2. If approved, FDA-EUA POCTs can provide a rapid and practical way to identify infected individuals early on and help to limit the strain on the healthcare system. However, more high-quality clinical data are required to support our results.
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Affiliation(s)
- S H Yoon
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, South Korea.
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Heimisdottir LH, Lin BM, Cho H, Orlenko A, Ribeiro AA, Simon-Soro A, Roach J, Shungin D, Ginnis J, Simancas-Pallares MA, Spangler HD, Zandoná AGF, Wright JT, Ramamoorthy P, Moore JH, Koo H, Wu D, Divaris K. Metabolomics Insights in Early Childhood Caries. J Dent Res 2021; 100:615-622. [PMID: 33423574 DOI: 10.1177/0022034520982963] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Dental caries is characterized by a dysbiotic shift at the biofilm-tooth surface interface, yet comprehensive biochemical characterizations of the biofilm are scant. We used metabolomics to identify biochemical features of the supragingival biofilm associated with early childhood caries (ECC) prevalence and severity. The study's analytical sample comprised 289 children ages 3 to 5 (51% with ECC) who attended public preschools in North Carolina and were enrolled in a community-based cross-sectional study of early childhood oral health. Clinical examinations were conducted by calibrated examiners in community locations using International Caries Detection and Classification System (ICDAS) criteria. Supragingival plaque collected from the facial/buccal surfaces of all primary teeth in the upper-left quadrant was analyzed using ultra-performance liquid chromatography-tandem mass spectrometry. Associations between individual metabolites and 18 clinical traits (based on different ECC definitions and sets of tooth surfaces) were quantified using Brownian distance correlations (dCor) and linear regression modeling of log2-transformed values, applying a false discovery rate multiple testing correction. A tree-based pipeline optimization tool (TPOT)-machine learning process was used to identify the best-fitting ECC classification metabolite model. There were 503 named metabolites identified, including microbial, host, and exogenous biochemicals. Most significant ECC-metabolite associations were positive (i.e., upregulations/enrichments). The localized ECC case definition (ICDAS ≥1 caries experience within the surfaces from which plaque was collected) had the strongest correlation with the metabolome (dCor P = 8 × 10-3). Sixteen metabolites were significantly associated with ECC after multiple testing correction, including fucose (P = 3.0 × 10-6) and N-acetylneuraminate (p = 6.8 × 10-6) with higher ECC prevalence, as well as catechin (P = 4.7 × 10-6) and epicatechin (P = 2.9 × 10-6) with lower. Catechin, epicatechin, imidazole propionate, fucose, 9,10-DiHOME, and N-acetylneuraminate were among the top 15 metabolites in terms of ECC classification importance in the automated TPOT model. These supragingival biofilm metabolite findings provide novel insights in ECC biology and can serve as the basis for the development of measures of disease activity or risk assessment.
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Affiliation(s)
- L H Heimisdottir
- Division of Pediatric and Public Health, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - B M Lin
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - H Cho
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - A Orlenko
- Department of Biostatistics, Epidemiology and Informatics, Institute for Biomedical Informatics, University of Pennsylvania, Philadelphia, PA, USA
| | - A A Ribeiro
- Division of Diagnostic Sciences, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - A Simon-Soro
- Biofilm Research Labs, Center for Innovation and Precision Dentistry, School of Dental Medicine and School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, USA.,Department of Orthodontics and Divisions of Pediatric Dentistry and Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Stomatology, School of Dentistry, University of Sevilla, Sevilla, Spain
| | - J Roach
- Research Computing, University of North Carolina, Chapel Hill, NC, USA
| | - D Shungin
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Department of Odontology, Umeå University, Umeå, Sweden
| | - J Ginnis
- Division of Pediatric and Public Health, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - M A Simancas-Pallares
- Division of Pediatric and Public Health, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - H D Spangler
- Division of Pediatric and Public Health, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - A G Ferreira Zandoná
- Department of Comprehensive Care, School of Dental Medicine, Tufts University, Boston, MA, USA
| | - J T Wright
- Division of Pediatric and Public Health, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | | | - J H Moore
- Department of Biostatistics, Epidemiology and Informatics, Institute for Biomedical Informatics, University of Pennsylvania, Philadelphia, PA, USA
| | - H Koo
- Biofilm Research Labs, Center for Innovation and Precision Dentistry, School of Dental Medicine and School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, USA.,Department of Orthodontics and Divisions of Pediatric Dentistry and Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - D Wu
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.,Division of Oral & Craniofacial Health Sciences, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - K Divaris
- Division of Pediatric and Public Health, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC, USA.,Department of Epidemiology, Gillings School of Public Health, University of North Carolina, Chapel Hill, NC, USA
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