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Jo SK, Yoo IH, Park HY, Kang C, Han SY, Moon JH, Park WH, Yeo YH, Jun S, Yi YS, Lee SJ, Tae JY, Song JH. An Atelocollagen Injection Enhances the Healing of Nonoperatively Treated Achilles Tendon Tears: An Experimental Study in Rats. Orthop J Sports Med 2023; 11:23259671231200933. [PMID: 37868218 PMCID: PMC10586006 DOI: 10.1177/23259671231200933] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 05/19/2023] [Indexed: 10/24/2023] Open
Abstract
Background There is growing interest in nonoperative treatment for the management of Achilles tendon ruptures (ATRs). However, nonoperative treatment is limited by the risk of tendon reruptures and low satisfaction rates. Recently, atelocollagen injections have been reported to have beneficial effects on tendon healing. Purpose To evaluate the beneficial effects of injected atelocollagen on Achilles tendon healing and investigate the mechanism of atelocollagen on tendon healing. Study Design Controlled laboratory study. Methods Percutaneous tenotomy of the right Achilles tendon in 66 rats was performed. The animals were equally divided into the noninjection group (NG) and the collagen injection group (CG). At 1, 3, and 6 weeks, the Achilles functional index, cross-sectional area, load to failure, stiffness, stress, and the modified Bonar score were assessed. Transmission electron microscopy, western blotting, and immunohistochemistry were also performed. Results The Achilles functional index (-6.8 vs -43.0, respectively; P = .040), load to failure (42.1 vs 27.0 N, respectively; P = .049), and stiffness (18.8 vs 10.3 N/mm, respectively; P = .049) were higher in the CG than those in the NG at 3 weeks. There were no significant differences in histological scores between the 2 groups. Transmission electron microscopy analysis showed that the mean diameter of collagen fibrils in the CG was greater than that in the NG at 3 weeks (117.2 vs 72.6 nm, respectively; P < .001) and 6 weeks (202.1 vs 144.0 nm, respectively; P < .001). Western blot analysis showed that the expression of collagen type I in the CG was higher than that in the NG at 1 week (P = .005) and 6 weeks (P = .001). Conclusion An atelocollagen injection had beneficial effects on the healing of nonoperatively treated Achilles tendon injuries. The Achilles tendon of CG rats exhibited better functional, biomechanical, and morphological outcomes compared with NG rats. The molecular data indicated that the mechanism of atelocollagen injections may be associated with an increased amount of collagen type I. Clinical Relevance An atelocollagen injection might be a good adjuvant option for the nonoperative treatment of ATRs.
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Affiliation(s)
- Seong Kyeong Jo
- Department of Orthopedic Surgery, Konyang University Hospital, Daejeon, Republic of Korea
| | - In Ha Yoo
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hyeon Yeong Park
- Department of Occupational Therapy, College of Medical Science, Konyang University, Daejeon, Republic of Korea
| | - Chan Kang
- Department of Orthopedic Surgery, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Seung Yun Han
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Ji Hyun Moon
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Won Ho Park
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, Republic of Korea
| | - Yong Ho Yeo
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, Republic of Korea
| | - Sangmi Jun
- Center for Research Equipment, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Yoon-Sun Yi
- Center for Research Equipment, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Su Jeong Lee
- Department of Microbiology, School of Medicine, CHA University, Seongnam, Republic of Korea
| | - Jung Yeon Tae
- Department of Medicine, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Jae Hwang Song
- Department of Orthopedic Surgery, Konyang University Hospital, Daejeon, Republic of Korea
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Lee SY, Lee H, Yun SH, Park EC, Seo G, Kim HY, Jun S, Kim NH, Tark D, Lee JY, Lee CS, Kim SI. Proteomics-based diagnostic peptide discovery for severe fever with thrombocytopenia syndrome virus in patients. Clin Proteomics 2022; 19:28. [PMID: 35842602 PMCID: PMC9287713 DOI: 10.1186/s12014-022-09366-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 07/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Severe fever with thrombocytopenia syndrome (SFTS) virus is an emerging infectious virus which causes severe hemorrhage, thrombocytopenia, and leukopenia, with a high fatality rate. Since there is no approved therapeutics or vaccines for SFTS, early diagnosis is essential to manage this infectious disease. METHODS Here, we tried to detect SFTS virus in serum samples from SFTS patients by proteomic analysis. Firstly, in order to obtain the reference MS/MS spectral data of SFTS virus, medium from infected Vero cell culture was used for shotgun proteomic analysis. Then, tryptic peptides in sera from SFTS patients were confirmed by comparative analysis with the reference MS/MS spectral data of SFTS virus. RESULTS Proteomic analysis of culture medium successfully discovered tryptic peptides from all the five antigen proteins of SFTS virus. The comparative spectral analysis of sera of SFTS patients revealed that the N-terminal tryptic peptide of the nucleocapsid (N) protein is the major epitope of SFTS virus detected in the patient samples. The prevalence of the peptides was strongly correlated with the viral load in the clinical samples. CONCLUSIONS Proteomic analysis of SFTS patient samples revealed that nucleocapsid (N) protein is the major antigen proteins in sera of SFTS patients and N-terminal tryptic peptide of the N protein might be a useful proteomic target for direct detection of SFTS virus. These findings suggest that proteomic analysis could be an alternative tool for detection of pathogens in clinical samples and diagnosis of infectious diseases.
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Affiliation(s)
- Sang-Yeop Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Hayoung Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea.,Department of Bio-Analytical Science, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Sung Ho Yun
- Center for Research Equipment, Korea Basic Science Institute, Ochang, 28119, Republic of Korea
| | - Edmond Changkyun Park
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea.,Department of Bio-Analytical Science, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Giwan Seo
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Hye-Yeon Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Sangmi Jun
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea.,Center for Research Equipment, Korea Basic Science Institute, Ochang, 28119, Republic of Korea
| | - Nam Hoon Kim
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Dongseob Tark
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, Jeonbuk, 54531, Republic of Korea
| | - Ju Yeon Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea
| | - Chang-Seop Lee
- Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, 54986, Republic of Korea. .,Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, 54907, Republic of Korea.
| | - Seung Il Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28119, Republic of Korea. .,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea. .,Department of Bio-Analytical Science, University of Science and Technology, Daejeon, 34113, Republic of Korea.
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Hong HJ, Joung KH, Kim YK, Choi MJ, Kang SG, Kim JT, Kang YE, Chang JY, Moon JH, Jun S, Ro HJ, Lee Y, Kim H, Park JH, Kang BE, Jo Y, Choi H, Ryu D, Lee CH, Kim H, Park KS, Kim HJ, Shong M. Mitoribosome insufficiency in β cells is associated with type 2 diabetes-like islet failure. Exp Mol Med 2022; 54:932-945. [PMID: 35804190 PMCID: PMC9355985 DOI: 10.1038/s12276-022-00797-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 02/22/2022] [Accepted: 03/14/2022] [Indexed: 12/04/2022]
Abstract
Genetic variations in mitoribosomal subunits and mitochondrial transcription factors are related to type 2 diabetes. However, the role of islet mitoribosomes in the development of type 2 diabetes has not been determined. We investigated the effects of the mitoribosomal gene on β-cell function and glucose homeostasis. Mitoribosomal gene expression was analyzed in datasets from the NCBI GEO website (GSE25724, GSE76894, and GSE76895) and the European Nucleotide Archive (ERP017126), which contain the transcriptomes of type 2 diabetic and nondiabetic organ donors. We found deregulation of most mitoribosomal genes in islets from individuals with type 2 diabetes, including partial downregulation of CRIF1. The phenotypes of haploinsufficiency in a single mitoribosomal gene were examined using β-cell-specific Crif1 (Mrpl59) heterozygous-deficient mice. Crif1beta+/− mice had normal glucose tolerance, but their islets showed a loss of first-phase glucose-stimulated insulin secretion. They also showed increased β-cell mass associated with higher expression of Reg family genes. However, Crif1beta+/− mice showed earlier islet failure in response to high-fat feeding, which was exacerbated by aging. Haploinsufficiency of a single mitoribosomal gene predisposes rodents to glucose intolerance, which resembles the early stages of type 2 diabetes in humans. Disruptions in the mitochondrial protein synthesis machinery give rise to metabolic disturbances that lay the foundation for type 2 diabetes. As physiological glucose levels rise, the energy-generating machinery of the mitochondria responds with increased activity, which stimulates insulin secretion. Many proteins responsible for mitochondrial metabolism are produced by ribosomes within this cellular organelle. Researchers led by Hyun Jin Kim and Minho Shong at Chungnam National University, Daejon, South Korea, have determined that mutations affecting a mitochondrial ribosomal protein called CRIF1 can lead to impaired insulin release. Mice with reduced CRIF1 were initially healthy, but as they aged, exhibited signs of impaired pancreatic function similar to those seen in patients with early-stage diabetes. This process was accelerated by consumption of a high-fat diet, and the researchers propose that this mechanism may be directly relevant to human disease.
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Affiliation(s)
- Hyun Jung Hong
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea.,Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Kyong Hye Joung
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea.,Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Yong Kyung Kim
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Min Jeong Choi
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Seul Gi Kang
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Jung Tae Kim
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea.,Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Yea Eun Kang
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea.,Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Joon Young Chang
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea.,Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Joon Ho Moon
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea
| | - Sangmi Jun
- Center for Research Equipment, Korea Basic Science Institute, Cheongju, 28119, Korea.,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, 34114, Korea
| | - Hyun-Joo Ro
- Center for Research Equipment, Korea Basic Science Institute, Cheongju, 28119, Korea.,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, 34114, Korea
| | - Yujeong Lee
- Center for Research Equipment, Korea Basic Science Institute, Cheongju, 28119, Korea.,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, 34114, Korea
| | - Hyeongseok Kim
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon, 35015, Korea
| | - Jae-Hyung Park
- Department of Physiology, Keimyung University School of Medicine, Daegu, 704-200, Korea
| | - Baeki E Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Yunju Jo
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Heejung Choi
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Dongryeol Ryu
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea.,Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, 16419, Korea.,Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, 06351, Korea
| | - Chul-Ho Lee
- Animal Model Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Korea
| | - Hail Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea
| | - Kyu-Sang Park
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, 26426, Korea
| | - Hyun Jin Kim
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea. .,Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, 35015, Korea.
| | - Minho Shong
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon, 35015, Korea. .,Department of Medical Science, Chungnam National University School of Medicine, Daejeon, 35015, Korea. .,Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, 35015, Korea.
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4
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Park MC, Goughnour PC, Jun S, Cho S, Song E, Kim SB, Kim HY, Hyun JK, Kim P, Jung HS, Kim S. Two distinct receptor-binding domains of human glycyl-tRNA synthetase 1 displayed on extracellular vesicles activate M1 polarization and phagocytic bridging of macrophages to cancer cells. Cancer Lett 2022; 539:215698. [PMID: 35523311 DOI: 10.1016/j.canlet.2022.215698] [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: 12/17/2021] [Revised: 04/21/2022] [Accepted: 04/21/2022] [Indexed: 12/11/2022]
Abstract
Macrophages play important roles in cancer microenvironment. Human cytosolic glycyl-tRNA synthetase (GARS1) was previously shown to be secreted via extracellular vesicles (EVs) from macrophages to trigger cancer cell death. However, the effects of GARS1-containing EVs (GARS1-EVs) on macrophages as well as on cancer cells and the working mechanisms of GARS1 in cancer microenvironment are not yet understood. Here we show that GARS1-EVs induce M1 polarization and facilitate phagocytosis of macrophages. GARS1-EVs triggers M1 polarization of macrophage via the specific interaction of the extracellular cadherin subdomains 1-4 of the cadherin EGF LAG seven-pass G-type receptor 2 (CELSR2) with the N-terminal WHEP domain containing peptide region of GARS1, and activates the RAF-MEK-ERK pathway for M1 type cytokine production and phagocytosis. Besides, GARS1 interacted with cadherin 6 (CDH6) of cancer cells via its C-terminal tRNA-binding domain to induce cancer cell death. In vivo model, GARS1-EVs showed potent suppressive activity against tumor initiation via M1 type macrophages. GARS1 displayed on macrophage-secreted extracellular vesicles suppressed tumor growth in dual mode, namely through pro-apoptotic effect on cancer cells and M1 polarization effect on macrophages. Collectively, these results elucidate the unique tumor suppressive activity and mechanism of GARS1-EVs by activating M1 macrophage via CELSR2 as well as by direct killing of cancer cells via CDH6.
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Affiliation(s)
- Min Chul Park
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, 50834, Gimhae, South Korea
| | - Peter C Goughnour
- Institute for Artificial Intelligence and Biomedical Research, Medicinal Bioconvergence Research Center, College of Pharmacy & College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon, 21983, South Korea
| | - Sangmi Jun
- Division of Electron Microscopic Research, Korea Basic Science Institute, Daejeon, 305-806, South Korea
| | - Seongmin Cho
- Institute for Artificial Intelligence and Biomedical Research, Medicinal Bioconvergence Research Center, College of Pharmacy & College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon, 21983, South Korea
| | - Eunjoo Song
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea
| | - Sang Bum Kim
- College of Pharmacy, Sahmyook University, Seoul, 01795, South Korea
| | - Hyeong Yun Kim
- Institute for Artificial Intelligence and Biomedical Research, Medicinal Bioconvergence Research Center, College of Pharmacy & College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon, 21983, South Korea
| | - Jae Kyung Hyun
- Department of Convergence Medicine, School of Medicine, Pusan National University, Gyeongsangnamdo, 50612, Republic of Korea
| | - Pilhan Kim
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea
| | - Hyun Suk Jung
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, 200-701, South Korea
| | - Sunghoon Kim
- Institute for Artificial Intelligence and Biomedical Research, Medicinal Bioconvergence Research Center, College of Pharmacy & College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon, 21983, South Korea.
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Jun S, Lee K, Song J. M186 Automated processing of sample preparation for homocysteine analysis using LC-MS/MS. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.068] [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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Kim S, Lee SE, Yi S, Jun S, Yi YS, Nagar H, Kim CS, Shin C, Yeo MK, Kang YE, Oh SH. Tauroursodeoxycholic Acid Decreases Keloid Formation by Reducing Endoplasmic Reticulum Stress as Implicated in the Pathogenesis of Keloid. Int J Mol Sci 2021; 22:ijms221910765. [PMID: 34639105 PMCID: PMC8509846 DOI: 10.3390/ijms221910765] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/01/2021] [Accepted: 10/03/2021] [Indexed: 12/11/2022] Open
Abstract
Keloids are a common form of pathologic wound healing and are characterized by an excessive production of extracellular matrix. This study examined the major contributing mechanism of human keloid pathogenesis using transcriptomic analysis. We identified the upregulation of mitochondrial oxidative stress response, protein processing in the endoplasmic reticulum, and TGF-β signaling in human keloid tissue samples compared to controls, based on ingenuity pathway and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. Electron microscopic examinations revealed an increased number of dysmorphic mitochondria and expanded endoplasmic reticulum (ER) in human keloid tissue samples than that in controls. Western blot analysis performed using human tissues suggested noticeably higher ER stress signaling in keloids than in normal tissues. Treatment with tauroursodeoxycholic acid (TUDCA), an ER stress inhibitor, significantly decreased scar formation in rabbit models, compared to normal saline and steroid injections. In summary, our findings demonstrate the contributions of mitochondrial dysfunction and dysregulated ER stress signaling in human keloid formation and the potential of TUDCA in the treatment of keloids.
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Affiliation(s)
- Sunje Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Chungnam National University, Daejeon 35015, Korea; (S.K.); (C.S.)
| | - Seong Eun Lee
- Research Institute for Medicinal Sciences, College of Medicine, Chungnam National University, Daejeon 35015, Korea; (S.E.L.); (S.Y.)
| | - Shinae Yi
- Research Institute for Medicinal Sciences, College of Medicine, Chungnam National University, Daejeon 35015, Korea; (S.E.L.); (S.Y.)
| | - Sangmi Jun
- Center for Research Equipment, Korea Basic Science Institute, Daejeon 34133, Korea; (S.J.); (Y.-S.Y.)
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Yoon-Sun Yi
- Center for Research Equipment, Korea Basic Science Institute, Daejeon 34133, Korea; (S.J.); (Y.-S.Y.)
| | - Harsha Nagar
- Department of Physiology, College of Medicine, Chungnam National University, Daejeon 35015, Korea; (H.N.); (C.-S.K.)
| | - Cuk-Seong Kim
- Department of Physiology, College of Medicine, Chungnam National University, Daejeon 35015, Korea; (H.N.); (C.-S.K.)
| | - Chungmin Shin
- Department of Plastic and Reconstructive Surgery, College of Medicine, Chungnam National University, Daejeon 35015, Korea; (S.K.); (C.S.)
| | - Min-Kyung Yeo
- Department of Pathology, College of Medicine, Chungnam National University, Daejeon 35015, Korea;
| | - Yea Eun Kang
- Research Institute for Medicinal Sciences, College of Medicine, Chungnam National University, Daejeon 35015, Korea; (S.E.L.); (S.Y.)
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, Korea
- Correspondence: (Y.E.K.); (S.-H.O.); Tel.: +82-42-280-7148 (Y.E.K.); +82-42-280-7387 (S.-H.O.); Fax: +82-42-280-7168 (Y.E.K.); +82-42-280-7384 (S.-H.O.)
| | - Sang-Ha Oh
- Department of Plastic and Reconstructive Surgery, College of Medicine, Chungnam National University, Daejeon 35015, Korea; (S.K.); (C.S.)
- Brain Research Institute, College of Medicine, Chungnam National University, Daejeon 35015, Korea
- Correspondence: (Y.E.K.); (S.-H.O.); Tel.: +82-42-280-7148 (Y.E.K.); +82-42-280-7387 (S.-H.O.); Fax: +82-42-280-7168 (Y.E.K.); +82-42-280-7384 (S.-H.O.)
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7
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Kim W, Lee SY, Kim SI, Sohng IK, Park SC, Jun S, Lee CS, Kim HY, Park EC. Identification of a Novel Antigen for Serological Diagnosis of Scrub Typhus. Am J Trop Med Hyg 2021; 105:1356-1361. [PMID: 34544047 DOI: 10.4269/ajtmh.20-0129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 06/29/2021] [Indexed: 11/07/2022] Open
Abstract
Scrub typhus is an acute infectious disease caused by the bacterium Orientia tsutsugamushi, which is widely distributed in northern, southern, and eastern Asia. Early diagnosis is essential because the average case fatality rate is usually >10% but can be as high as 45% if antimicrobial treatment is delayed. Although an O. tsutsugamushi 56-kDa type-specific antigen (TSA) is commonly used for serological diagnosis of scrub typhus, the 56-kDa TSA shows variations among O. tsutsugamushi strains, which may lead to poor diagnostic results. Therefore, the discovery of new antigenic proteins may improve diagnostic accuracy. In this study, we identified an O. tsutsugamushi 27 kDa antigen through an immunoinformatic approach and verified its diagnostic potential using patient samples. Compared with the O. tsutsugamushi 56-kDa antigen, the new 27-kDa antigen showed better diagnostic specificity with similar diagnostic sensitivity. Therefore, the O. tsutsugamushi 27-kDa antigen shows potential as a novel serological diagnostic antigen for scrub typhus, providing higher diagnostic accuracy for O. tsutsugamushi than the 56-kDa antigen.
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Affiliation(s)
- Wooyoung Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Sang-Yeop Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Seung Il Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea.,Department of Bio-Analysis Science, University of Science & Technology, Daejeon, Republic of Korea
| | - In-Kook Sohng
- Manufacture Business Division Curebio Ltd, Seoul, Republic of Korea
| | - Sun Cheol Park
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Sangmi Jun
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea.,Center for Research Equipment, Korea Basic Science Institute, Cheongju, Republic of Korea
| | - Chang-Seop Lee
- Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Republic of Korea.,Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
| | - Hye-Yeon Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Edmond Changkyun Park
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea.,Department of Bio-Analysis Science, University of Science & Technology, Daejeon, Republic of Korea
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8
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Moon JH, Kim H, Kim H, Park J, Choi W, Choi W, Hong HJ, Ro HJ, Jun S, Choi SH, Banerjee RR, Shong M, Cho NH, Kim SK, German MS, Jang HC, Kim H. Lactation improves pancreatic β cell mass and function through serotonin production. Sci Transl Med 2021; 12:12/541/eaay0455. [PMID: 32350130 DOI: 10.1126/scitranslmed.aay0455] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 12/23/2019] [Accepted: 03/04/2020] [Indexed: 12/18/2022]
Abstract
Pregnancy imposes a substantial metabolic burden on women through weight gain and insulin resistance. Lactation reduces the risk of maternal postpartum diabetes, but the mechanisms underlying this benefit are unknown. Here, we identified long-term beneficial effects of lactation on β cell function, which last for years after the cessation of lactation. We analyzed metabolic phenotypes including β cell characteristics in lactating and non-lactating humans and mice. Lactating and non-lactating women showed comparable glucose tolerance at 2 months after delivery, but after a mean of 3.6 years, glucose tolerance in lactated women had improved compared to non-lactated women. In humans, the disposition index, a measure of insulin secretory function of β cells considering the degree of insulin sensitivity, was higher in lactated women at 3.6 years after delivery. In mice, lactation improved glucose tolerance and increased β cell mass at 3 weeks after delivery. Amelioration of glucose tolerance and insulin secretion were maintained up to 4 months after delivery in lactated mice. During lactation, prolactin induced serotonin production in β cells. Secreted serotonin stimulated β cell proliferation through serotonin receptor 2B in an autocrine and paracrine manner. In addition, intracellular serotonin acted as an antioxidant to mitigate oxidative stress and improved β cell survival. Together, our results suggest that serotonin mediates the long-term beneficial effects of lactation on female metabolic health by increasing β cell proliferation and reducing oxidative stress in β cells.
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Affiliation(s)
- Joon Ho Moon
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Hyeongseok Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.,Department of Biochemistry, College of Medicine, Chungnam National University, Daejeon 35015, Korea
| | - Hyunki Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Jungsun Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Wonsuk Choi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Wongun Choi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Hyun Jung Hong
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Hyun-Joo Ro
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Sangmi Jun
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Sung Hee Choi
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Ronadip R Banerjee
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Alabama School of Medicine, Birmingham, AL 35294, USA
| | - Minho Shong
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Nam Han Cho
- Department of Preventive Medicine, Ajou University School of Medicine, Suwon 16499, Korea
| | - Seung K Kim
- Department of Developmental Biology and Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michael S German
- Diabetes Center, Hormone Research Institute and Department of Medicine, University of California San Francisco, San Francisco, CA 94143, USA.
| | - Hak Chul Jang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Hail Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
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9
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Kang YE, Kim JM, Lim MA, Lee SE, Yi S, Kim JT, Oh C, Liu L, Jin Y, Jung SN, Won HR, Chang JW, Lee JH, Kim HJ, Koh HY, Jun S, Cho SW, Shong M, Koo BS. Growth Differentiation Factor 15 is a Cancer Cell-Induced Mitokine That Primes Thyroid Cancer Cells for Invasiveness. Thyroid 2021; 31:772-786. [PMID: 33256569 DOI: 10.1089/thy.2020.0034] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background: Mitochondrial stress is known to activate the mitochondrial unfolded protein response (UPRmt). The UPRmt results in the secretion of mitochondrial cytokines (mitokines), which can promote a hormetic response cell nonautonomously, and has been reported to be protumorigenic. Growth differentiation factor 15 (GDF15) is a well-characterized mitokine, which is reported to have a mitohormetic effect. Thus, we investigated whether GDF15 induction could prime a subpopulation of thyroid cancer cells to provide invasive advantages. Methods: The UPRmt, including mitokine expression, was assessed in the context of thyroid cancer in vitro and in vivo. GDF15 expression in 266 patients with papillary thyroid carcinoma (PTC) was determined by immunohistochemistry. The serum levels of GDF15 were measured in healthy subjects and PTC patients. In addition, our own and The Cancer Genome Atlas data were analyzed to determine the expression level of GDF15 in thyroid cancers. The role of GDF15 in tumor aggressiveness was investigated by observing the effects of GDF15 knockdown in BCPAP, TPC-1, 8505C, and FRO cells. Results: Pharmacological inhibition of mitochondrial oxidative phosphorylation function in thyroid cancer cells robustly increased GDF15 expression. The expression of GDF15 was associated with activation of the mitochondrial integrated stress response pathway in PTC patients. Circulating GDF15 levels were significantly higher in PTC patients than in the controls, and tumor expression of GDF15 was related to tumor aggressiveness. In vitro and in vivo knockdown of GDF15 in a thyroid cancer model showed decreased viability, migration, and invasion compared with the control cells via regulation of STAT3. Conclusions: In this study, we demonstrated that GDF15 is a mitokine induced in thyroid cancer cells upon mitochondrial stress. GDF15-induced STAT3 activation determined tumor progression in thyroid cancer. The GDF15-STAT3 signaling axis may be a target in aggressiveness of thyroid cancer.
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MESH Headings
- Adenoma, Oxyphilic/genetics
- Adenoma, Oxyphilic/metabolism
- Adenoma, Oxyphilic/pathology
- Cell Line, Tumor
- Gene Knockdown Techniques
- Growth Differentiation Factor 15/genetics
- Growth Differentiation Factor 15/metabolism
- Humans
- Mitochondria
- Neoplasm Invasiveness
- RNA, Messenger/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- STAT3 Transcription Factor/metabolism
- Signal Transduction
- Thyroid Cancer, Papillary/genetics
- Thyroid Cancer, Papillary/metabolism
- Thyroid Cancer, Papillary/pathology
- Thyroid Carcinoma, Anaplastic/genetics
- Thyroid Carcinoma, Anaplastic/metabolism
- Thyroid Carcinoma, Anaplastic/pathology
- Thyroid Epithelial Cells/metabolism
- Thyroid Neoplasms/genetics
- Thyroid Neoplasms/metabolism
- Thyroid Neoplasms/pathology
- Unfolded Protein Response
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Affiliation(s)
- Yea Eun Kang
- Department of Endocrinology and Metabolism, College of Medicine, Chungnam National University, Daejeon, South Korea
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Jin Man Kim
- Department of Pathology, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Mi Ae Lim
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Seong Eun Lee
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Shinae Yi
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Jung Tae Kim
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
- Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Chan Oh
- Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Lihua Liu
- Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Yanli Jin
- Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Seung-Nam Jung
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Ho-Ryun Won
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Jae Won Chang
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Jeong Ho Lee
- Graduate School of Medical Science and Engineering; Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Biomedical Science and Engineering Interdisciplinary Program, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Hyun Jung Kim
- Graduate School of Medical Science and Engineering; Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Hyun Yong Koh
- Graduate School of Medical Science and Engineering; Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Sangmi Jun
- Drug & Disease Target Group, Korea Basic Science Institute, Cheongju, South Korea
- Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Sun Wook Cho
- Department of Endocrinology and Metabolism, College of Medicine, Seoul National University, Seoul, South Korea
| | - Minho Shong
- Department of Endocrinology and Metabolism, College of Medicine, Chungnam National University, Daejeon, South Korea
- Research Center for Endocrine and Metabolic Diseases, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Bon Seok Koo
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
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10
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Lee YH, Cha HM, Hwang JY, Park SY, Vishakantegowda AG, Imran A, Lee JY, Yi YS, Jun S, Kim GH, Kang HJ, Chung SJ, Kim M, Kim H, Han SB. Sulfamoylbenzamide-based Capsid Assembly Modulators for Selective Inhibition of Hepatitis B Viral Replication. ACS Med Chem Lett 2021; 12:242-248. [PMID: 33603970 PMCID: PMC7883466 DOI: 10.1021/acsmedchemlett.0c00606] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 12/29/2020] [Indexed: 02/08/2023] Open
Abstract
As the spread of infections caused by hepatitis B virus (HBV) threatens public health worldwide, investigations from multiple perspectives and of various mechanisms of action are urgently required to increase the HBV cure rate. Targeting the encapsidation of the nuclear capsid protein (core protein, HBc) has emerged as an attractive strategy for inhibiting the viral assembly process; however, a drug targeting this mechanism has not yet been approved. We synthesized novel sulfamoylbenzamides (SBAs) as capsid assembly modulators of HBV and found that the effects and safety profiles of compounds 3 and 8 have potential therapeutic applicability against HBV. The formation of tubular particles was time-dependent in the presence of 3, indicating a new mode of protein assembly by SBA compounds. Our findings provide a new entity for developing safe and efficient treatments for HBV infection.
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Affiliation(s)
- Yeon Hee Lee
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Department
of Medicinal Chemistry and Pharmacology, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Hyeon-Min Cha
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Graduate
School of New Drug Discovery and Development, Chungnam National University, Daejeon 34134, Republic
of Korea
| | - Jun Yeon Hwang
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - So Yeong Park
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Department
of Medicinal Chemistry and Pharmacology, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Avinash G. Vishakantegowda
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Department
of Medicinal Chemistry and Pharmacology, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Ali Imran
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Joo-Youn Lee
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Yoon-Sun Yi
- Center
for Research Equipment, Korea Basic Science
Institute, Cheongju 28119, Republic of Korea
| | - Sangmi Jun
- Center
for Research Equipment, Korea Basic Science
Institute, Cheongju 28119, Republic of Korea
| | - Ga Hyeon Kim
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
- AbTis Co.
Ltd. Suwon Venture Valley II, 142-10, Saneop-ro 156, Gwonseon-gu, Suwon 16648, Republic of Korea
| | - Hyo Jin Kang
- AbTis Co.
Ltd. Suwon Venture Valley II, 142-10, Saneop-ro 156, Gwonseon-gu, Suwon 16648, Republic of Korea
| | - Sang J. Chung
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
- AbTis Co.
Ltd. Suwon Venture Valley II, 142-10, Saneop-ro 156, Gwonseon-gu, Suwon 16648, Republic of Korea
| | - Meehyein Kim
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Graduate
School of New Drug Discovery and Development, Chungnam National University, Daejeon 34134, Republic
of Korea
| | - Hyejin Kim
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Soo Bong Han
- Therapeutics
& Biotechnology Division, Korea Research
Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Department
of Medicinal Chemistry and Pharmacology, University of Science & Technology, Daejeon 34113, Republic of Korea
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11
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Ju Y, Ro HJ, Yi YS, Cho T, Kim SI, Yoon CW, Jun S, Kim J. Three-Dimensional TEM Study of Dendrimer-Encapsulated Pt Nanoparticles for Visualizing Structural Characteristics of the Whole Organic-Inorganic Hybrid Nanostructure. Anal Chem 2021; 93:2871-2878. [PMID: 33455155 DOI: 10.1021/acs.analchem.0c04264] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Here, we report three-dimensional (3-D) visualization of dendrimer-encapsulated Pt nanoparticles (Pt DENs) by using 3-D electron tomography to reveal intricate structural characteristics of their whole organic-inorganic hybrid nanostructure. We reconstructed the 3-D spatial volume of Pt DENs by back-projecting a tilt series of two-dimensional (2-D) projections of Pt nanoparticles encapsulated inside dendrimers negatively stained with uranyl acetate. The direct 3-D visualization of Pt DENs elucidated their encapsulation characteristics with the spatial imaging of Pt nanoparticles embraced inside dendrimers in three dimensions. The encapsulation characteristics of Pt DENs were further verified with selective electrochemical poisoning experiments. In addition, quantitative 3-D structural characterization of Pt DENs provided more accurate and precise size distributions of nanoparticles than those obtained from conventional 2-D transmission electron microscopy analysis relying only on a 3-D structure projected on a 2-D plane.
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Affiliation(s)
- Youngwon Ju
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyun-Joo Ro
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Yoon-Sun Yi
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea
| | - Taehoon Cho
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Seung Il Kim
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Chang Won Yoon
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul 02447, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sangmi Jun
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Joohoon Kim
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul 02447, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
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12
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Shin H, Jang Y, Jun S, Lee Y, Kim M. Determination of the vRNA and cRNA promoter activity by M segment-specific non-coding nucleotides of influenza A virus. RNA Biol 2020; 18:785-795. [PMID: 33317417 PMCID: PMC8078515 DOI: 10.1080/15476286.2020.1864182] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Eight-segmented, negative-sense, single-stranded genomic RNAs of influenza A virus are terminated with 5' and 3' untranslated regions (UTRs). All segments have highly conserved extremities of 13 and 12 nucleotides at the 5' and 3' UTRs, respectively, constructing the viral RNA (vRNA) promoter. Adjacent to the duplex stem of 3 base pairs (bps) between the two conserved strands, additional 1-4 bps are existing in a segment-specific manner. We investigated the roles of the matrix (M) segment-specific base pair between the 14th nucleotide uridine (U14') of the 5' UTR and the 13th nucleotide adenosine (A13) of the 3' UTR by preparing possible vRNA promoters, named vXY, as well as cRNA promoters, named cYX. We analysed their RNA-dependent RNA replication efficiency using the minigenome replicon system and an enzyme assay system in vitro with synthetic RNA promoters. Notably, in contrast to vAC(s) that is a synthetic vRNA promoter with A14' and C13, base-pair disruption at the complementary RNA (cRNA) promoter in cAC(s), which has A13' and C14, not only reduced viral RNA replication in cells but also impaired de novo initiation of unprimed vRNA synthesis. Reverse genetics experiments confirmatively exhibited that this breakage in the cRNA promoter affected the rescue of infectious virus. The present study suggests that the first segment-specific base pair plays an essential role in generating infectious viruses by regulating the promoter activity of cRNA rather than vRNA. It could provide insights into the role of the segment-specific nucleotides in viral genome replication for sustainable infection.
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Affiliation(s)
- Heegwon Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.,Department of Microbiology and Immunology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Yejin Jang
- Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, Republic of Korea
| | - Sangmi Jun
- Center for Research Equipment, Korea Basic Science Institute (KBSI), Cheongju, Republic of Korea.,Convergent Research Center for Emerging Virus Infection, KRICT, Daejeon, Republic of Korea
| | - Younghoon Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Meehyein Kim
- Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, Republic of Korea.,Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon, Republic of Korea
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13
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Lee Y, Kim SI, Yi YS, Lee H, Hwang JH, Park EC, Jun S, Lee CS. Transmission Electron Microscopy Confirmation of Orientia tsutsugamushi in Human Bile. Emerg Infect Dis 2020; 26:3101-3103. [PMID: 33219812 PMCID: PMC7706943 DOI: 10.3201/eid2612.202188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Scrub typhus, the third most frequently reported infectious disease in South Korea, causes serious public health problems. In 2019, we collected a bile specimen from a patient with scrub typhus through percutaneous transhepatic gallbladder drainage and performed transmission electron microscopy to confirm the ultrastructure of Orientiatsutsugamushi.
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14
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Goughnour PC, Park MC, Kim SB, Jun S, Yang WS, Chae S, Cho S, Song C, Lee J, Hyun JK, Kim BG, Hwang D, Jung HS, Gho YS, Kim S. Extracellular vesicles derived from macrophages display glycyl-tRNA synthetase 1 and exhibit anti-cancer activity. J Extracell Vesicles 2020; 10:e12029. [PMID: 33708357 PMCID: PMC7890555 DOI: 10.1002/jev2.12029] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 09/15/2019] [Revised: 08/25/2020] [Accepted: 11/07/2020] [Indexed: 12/31/2022] Open
Abstract
Glycyl-tRNA synthetase 1 (GARS1), a cytosolic enzyme secreted from macrophages, promotes apoptosis in cancer cells. However, the mechanism underlying GARS1 secretion has not been elucidated. Here, we report that GARS1 is secreted through unique extracellular vesicles (EVs) with a hydrodynamic diameter of 20-58 nm (mean diameter: 36.9 nm) and a buoyant density of 1.13-1.17 g/ml. GARS1 was anchored to the surface of these EVs through palmitoylated C390 residue. Proteomic analysis identified 164 proteins that were uniquely enriched in the GARS1-containing EVs (GARS1-EVs). Among the identified factors, insulin-like growth factor II receptor, and vimentin also contributed to the anti-cancer activity of GARS1-EVs. This study identified the unique secretory vesicles containing GARS1 and various intracellular factors that are involved in the immunological defence response against tumorigenesis.
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Affiliation(s)
- Peter C. Goughnour
- Institute for Artificial Intelligence and Biomedical ResearchMedicinal Bioconvergence Research CenterCollege of Pharmacy & College of MedicineGangnam Severance HospitalYonsei UniversityIncheonKorea
| | - Min Chul Park
- Institute for Artificial Intelligence and Biomedical ResearchMedicinal Bioconvergence Research CenterCollege of Pharmacy & College of MedicineGangnam Severance HospitalYonsei UniversityIncheonKorea
| | - Sang Bum Kim
- Institute for Artificial Intelligence and Biomedical ResearchMedicinal Bioconvergence Research CenterCollege of Pharmacy & College of MedicineGangnam Severance HospitalYonsei UniversityIncheonKorea
| | - Sangmi Jun
- Division of Electron Microscopic ResearchKorea Basic Science InstituteDaejeonKorea
| | - Won Suk Yang
- Institute for Artificial Intelligence and Biomedical ResearchMedicinal Bioconvergence Research CenterCollege of Pharmacy & College of MedicineGangnam Severance HospitalYonsei UniversityIncheonKorea
| | - Sehyun Chae
- Daegu Gyeongbuk Institute of Science and TechnologyDaeguKorea
| | - Seongmin Cho
- Institute for Artificial Intelligence and Biomedical ResearchMedicinal Bioconvergence Research CenterCollege of Pharmacy & College of MedicineGangnam Severance HospitalYonsei UniversityIncheonKorea
| | - Chihong Song
- Division of Electron Microscopic ResearchKorea Basic Science InstituteDaejeonKorea
| | - Ji‐Hyun Lee
- Institute for Artificial Intelligence and Biomedical ResearchMedicinal Bioconvergence Research CenterCollege of Pharmacy & College of MedicineGangnam Severance HospitalYonsei UniversityIncheonKorea
| | - Jae Kyung Hyun
- Division of Electron Microscopic ResearchKorea Basic Science InstituteDaejeonKorea
| | - Byung Gyu Kim
- Institute for Artificial Intelligence and Biomedical ResearchMedicinal Bioconvergence Research CenterCollege of Pharmacy & College of MedicineGangnam Severance HospitalYonsei UniversityIncheonKorea
- Center for Genomic IntegrityInstitute for Basic ScienceUlsanKorea
| | - Daehee Hwang
- Daegu Gyeongbuk Institute of Science and TechnologyDaeguKorea
| | - Hyun Suk Jung
- Department of BiochemistryCollege of Natural SciencesKangwon National UniversityChuncheonKorea
| | - Yong Song Gho
- Department of Life SciencePohang University of Science and TechnologyPohangKorea
| | - Sunghoon Kim
- Institute for Artificial Intelligence and Biomedical ResearchMedicinal Bioconvergence Research CenterCollege of Pharmacy & College of MedicineGangnam Severance HospitalYonsei UniversityIncheonKorea
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15
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Jeong EH, Cho SY, Vaidya B, Ha SH, Jun S, Ro HJ, Lee Y, Lee J, Kwon J, Kim D. Human Norovirus Replication in Temperature-Optimized MDCK Cells by Forkhead Box O1 Inhibition. J Microbiol Biotechnol 2020; 30:1412-1419. [PMID: 32522961 PMCID: PMC9745657 DOI: 10.4014/jmb.2003.03071] [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: 03/31/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 12/15/2022]
Abstract
Human noroviruses (HuNoVs) are a leading cause of gastroenteritis outbreaks worldwide. However, the paucity of appropriate cell culture model for HuNoV replication has prevented developing effective anti-HuNoV therapy. In this study, first, the replication of the virus at various temperatures in different cells was compared, which showed that lowering the culture temperature from 37°C significantly increased virus replication in Madin-Darby canine kidney (MDCK) cells. Second, the expression levels of autophagy-, immune-, and apoptosis-related genes at 30°C and 37°C were compared to explore factors affecting HuNoV replication. HuNoV cultured at 37°C showed significantly increased autophagy- (ATG5 and ATG7) and immune- (IFNA, IFNB, ISG15, and NFKB) related genes compared to mock. However, the virus cultured at 30°C showed significantly decreased expression of autophagy- (ATG5 and ATG7) and not significantly different in major immune- (IFNA, ISG15, and NFKB) related genes compared to mock. Importantly, expression of the transcription factor FOXO1, which controls autophagy- and immune-related gene expression, was significantly lower at 30°C. Moreover, FOXO1 inhibition in temperature-optimized MDCK cells enhanced HuNoV replication, highlighting FOXO1 inhibition as an approach for successful virus replication. In the temperature-optimized cells, various HuNoV genotypes were successfully replicated, with GI.8 showing the highest replication levels followed by GII.1, GII.3, and GII.4. Furthermore, ultrastructural analysis of the infected cells revealed functional HuNoV replication at low temperature, with increased cellular apoptosis and decreased autophagic vacuoles. In conclusion, temperature-optimized MDCK cells can be used as a convenient culture model for HuNoV replication by inhibiting FOXO1, providing adaptability to different genotypes.
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Affiliation(s)
- Eun-Hye Jeong
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Se-Young Cho
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Bipin Vaidya
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sang Hoon Ha
- Division of Biotechnology, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Sangmi Jun
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon 34133, Republic of Korea,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Hyun-Joo Ro
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon 34133, Republic of Korea,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Yujeong Lee
- Korea Basic Science Institute, Cheongju 28119, Republic of Korea,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Juhye Lee
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Joseph Kwon
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon 34133, Republic of Korea,J.K. Phone: +82-42-865-3446 Fax: +82-42-865-3419 E-mail:
| | - Duwoon Kim
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju 61186, Republic of Korea,Corresponding authors D.K. Phone: +82-62-530-2144 Fax: +82-62-530-2149 E-mail:
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16
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Seo G, Lee G, Kim MJ, Baek SH, Choi M, Ku KB, Lee CS, Jun S, Park D, Kim HG, Kim SJ, Lee JO, Kim BT, Park EC, Kim SI. Correction to Rapid Detection of COVID-19 Causative Virus (SARS-CoV-2) in Human Nasopharyngeal Swab Specimens Using Field-Effect Transistor-Based Biosensor. ACS Nano 2020; 14:12257-12258. [PMID: 32857489 PMCID: PMC7510338 DOI: 10.1021/acsnano.0c06726] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Indexed: 05/18/2023]
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17
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Kim BS, Kang J, Jun S, Kim H, Pak K, Kim GH, Heo HJ, Kim YH. Association between immunotherapy biomarkers and glucose metabolism from F-18 FDG PET. Eur Rev Med Pharmacol Sci 2020; 24:8288-8295. [PMID: 32894535 DOI: 10.26355/eurrev_202008_22625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To assess associations between parameters derived from F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) and mRNA expression levels of immune checkpoint biomarkers such as programmed death receptor 1 (PD-1), programmed death-ligand 1 (PD-L1), cytotoxic T-lymphocyte antigen 4 (CTLA-4) as well as tumor mutation burden (TMB) in non-small cell lung cancer (NSCLC) patients. PATIENTS AND METHODS Integrated data were downloaded from Genomic Data Common Data Portal. Clinical, mRNA-seq, and whole exome-seq data of lung adenocarcinoma and squamous cell carcinoma from The Cancer Genome Atlas (TCGA) database were analyzed. TMB was defined as the total number of somatic missense mutations per megabase of the genome examined. Expression levels of PD-1, PD-L1, CTLA4 mRNA and TMB were collected. Correlations between imaging parameters of glucose metabolism and the expression levels of genomic biomarkers from cancers were evaluated. Bonferroni correction (adjusted p<0.0027) was applied to reduce type 1 error. RESULTS Of 31 NSCLC cases, 11 cases were adenocarcinoma (LUAD) and 20 were squamous cell carcinoma (LUSC). In linear regression analysis, texture parameters such as low gray-level run emphasis (LGRE, R2=0.48, p<0.0001), short run low gray-level emphasis (SRLGE, R2=0.45, p<0.0001) and long run low gray-level emphasis (LRLGE, R2=0.41, p=0.0001) derived from gray-level run length matrix (GLRLM) showed remarkable correlation with PD-L1 mRNA expression. Expression of PD-1, CTLA-4, and TMB failed to show any significant correlation with parameters of the F-18 FDG PET/CT. CONCLUSIONS Texture parameters derived from PET, known to indicate glucose uptake distribution, were correlated with expression of PD-L1 mRNA but not with expression of PD-1, CTLA-4 and TMB. Thus, tumoral heterogeneity could be a surrogate marker for the identification of PD-L1 level in NSCLC.
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Affiliation(s)
- B S Kim
- Department of Nuclear Medicine, Kosin University Gospel Hospital, University of Kosin College of Medicine, Busan, Republic of Korea.
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18
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Jun S, Ro HJ, Bharda A, Kim SI, Jeoung D, Jung HS. Advances in Cryo-Correlative Light and Electron Microscopy: Applications for Studying Molecular and Cellular Events. Protein J 2020; 38:609-615. [PMID: 31396855 DOI: 10.1007/s10930-019-09856-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cryo-correlative light and electron microscopy (Cryo-CLEM) is materializing as a widespread approach amalgamating the advantages of both fluorescence light microscopy (FLM) as well as three dimensional (3D) cryo-electron tomography (cryo-ET) to reveal the ultrastructure of significant target molecules with specific cellular functions. Cryo-CLEM allows imaging of cells by means of fluorescence microscopy exhibiting the location of the destined molecule at high temporal and spatial resolution while cryo-ET is employed to analyze the 3D structure at a molecular resolution in close-to-physiological condition. Present review focuses upon the practical strategies for Cryo-CLEM and recent technical developments that will assist the broad implementation of this technique to investigate and answer questions pertaining to various biological events occurring in the cell.
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Affiliation(s)
- Sangmi Jun
- Drug & Disease Target Team, Korea Basic Science Institute, 162, Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-Si, Chungcheongbuk-do, 28119, South Korea. .,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, South Korea. .,Bio-Analytical Science, University of Science & Technology, Daejeon, South Korea.
| | - Hyun-Joo Ro
- Drug & Disease Target Team, Korea Basic Science Institute, 162, Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-Si, Chungcheongbuk-do, 28119, South Korea.,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, South Korea.,Bio-Analytical Science, University of Science & Technology, Daejeon, South Korea
| | - Anahita Bharda
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon-Si, Gangwon-do, 200-701, South Korea
| | - Seung Il Kim
- Drug & Disease Target Team, Korea Basic Science Institute, 162, Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-Si, Chungcheongbuk-do, 28119, South Korea.,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, South Korea.,Bio-Analytical Science, University of Science & Technology, Daejeon, South Korea
| | - Dooil Jeoung
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon-Si, Gangwon-do, 200-701, South Korea
| | - Hyun Suk Jung
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon-Si, Gangwon-do, 200-701, South Korea.
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19
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Seo G, Lee G, Kim MJ, Baek SH, Choi M, Ku KB, Lee CS, Jun S, Park D, Kim HG, Kim SJ, Lee JO, Kim BT, Park EC, Kim SI. Rapid Detection of COVID-19 Causative Virus (SARS-CoV-2) in Human Nasopharyngeal Swab Specimens Using Field-Effect Transistor-Based Biosensor. ACS Nano 2020; 14:5135-5142. [PMID: 32293168 PMCID: PMC7172500 DOI: 10.1021/acsnano.0c02823] [Citation(s) in RCA: 1010] [Impact Index Per Article: 252.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 04/15/2020] [Indexed: 05/10/2023]
Abstract
Coronavirus disease 2019 (COVID-19) is a newly emerging human infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, previously called 2019-nCoV). Based on the rapid increase in the rate of human infection, the World Health Organization (WHO) has classified the COVID-19 outbreak as a pandemic. Because no specific drugs or vaccines for COVID-19 are yet available, early diagnosis and management are crucial for containing the outbreak. Here, we report a field-effect transistor (FET)-based biosensing device for detecting SARS-CoV-2 in clinical samples. The sensor was produced by coating graphene sheets of the FET with a specific antibody against SARS-CoV-2 spike protein. The performance of the sensor was determined using antigen protein, cultured virus, and nasopharyngeal swab specimens from COVID-19 patients. Our FET device could detect the SARS-CoV-2 spike protein at concentrations of 1 fg/mL in phosphate-buffered saline and 100 fg/mL clinical transport medium. In addition, the FET sensor successfully detected SARS-CoV-2 in culture medium (limit of detection [LOD]: 1.6 × 101 pfu/mL) and clinical samples (LOD: 2.42 × 102 copies/mL). Thus, we have successfully fabricated a promising FET biosensor for SARS-CoV-2; our device is a highly sensitive immunological diagnostic method for COVID-19 that requires no sample pretreatment or labeling.
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Affiliation(s)
- Giwan Seo
- Research Center for Bioconvergence
Analysis, Korea Basic Science Institute,
Cheongju 28119, Republic of Korea
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
| | - Geonhee Lee
- Advanced Materials Division,
Korea Research Institute of Chemical
Technology, Daejeon 34114, Republic of
Korea
| | - Mi Jeong Kim
- Research Center for Bioconvergence
Analysis, Korea Basic Science Institute,
Cheongju 28119, Republic of Korea
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
| | - Seung-Hwa Baek
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
- Department of Predictive Toxicology,
Korea Institute of Toxicology,
Daejeon 34114, Republic of Korea
| | - Minsuk Choi
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
| | - Keun Bon Ku
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
| | - Chang-Seop Lee
- Department of Internal Medicine,
Jeonbuk National University Medical
School, Jeonju 54986, Republic of
Korea
- Biomedical Research Institute of
Jeonbuk National University Hospital, Jeonju
54907, Republic of Korea
| | - Sangmi Jun
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
- Center for Research Equipment,
Korea Basic Science Institute,
Cheongju 28119, Republic of Korea
| | - Daeui Park
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
- Department of Predictive Toxicology,
Korea Institute of Toxicology,
Daejeon 34114, Republic of Korea
| | - Hong Gi Kim
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
| | - Seong-Jun Kim
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
| | - Jeong-O Lee
- Advanced Materials Division,
Korea Research Institute of Chemical
Technology, Daejeon 34114, Republic of
Korea
| | - Bum Tae Kim
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
| | - Edmond Changkyun Park
- Research Center for Bioconvergence
Analysis, Korea Basic Science Institute,
Cheongju 28119, Republic of Korea
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
- Department of Bio-Analysis Science,
University of Science & Technology
(UST), Daejeon 34113, Republic of
Korea
| | - Seung Il Kim
- Research Center for Bioconvergence
Analysis, Korea Basic Science Institute,
Cheongju 28119, Republic of Korea
- Center for Convergent Research of
Emerging Virus Infection, Korea Research Institute of
Chemical Technology, Daejeon 34114,
Republic of Korea
- Department of Bio-Analysis Science,
University of Science & Technology
(UST), Daejeon 34113, Republic of
Korea
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20
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Pizzurro S, Pirzio F, Jun S, Di Lieto A, Tonelli M, Agnesi A. Multi-Watt, mJ nanosecond pulses amplification in a Yb:LuLiF 4 single crystal fiber grown by micro-pulling-down. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202024305001] [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: 11/15/2022] Open
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21
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Qin Y, Cai J, Ji W, Chen X, Tian L, Jun S, Wang L, He X. Intraspinal Paragonimiasis in Children: MRI Findings and Suggestions for Pathogenesis. AJNR Am J Neuroradiol 2019; 40:2166-2171. [PMID: 31727748 DOI: 10.3174/ajnr.a6296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 09/03/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND PURPOSE Intraspinal paragonimiasis is a rare entity for which imaging findings have seldom been described. The present study investigated the MR imaging features of spinal paragonimiasis, thus providing diagnostic imaging evidence and exploring the possible pathogenesis of intraspinal paragonimiasis. MATERIALS AND METHODS The clinical and imaging findings of spinal paragonimiasis in 6 children were analyzed retrospectively. Spinal MR imaging was performed in all patients, 5 of whom also underwent enhanced MR imaging. The diagnosis was confirmed by enzyme-linked immunosorbent assay in all cases and postoperative pathology in 4 cases. RESULTS All cases manifested as fusiform-shaped or beanlike masses in the extradural space in the thoracic spine. The extradural masses were connected with pleural lesions through the intervertebral foramen. The plain MR imaging scan showed mixed signals with predominant isointensity on T1WI and hyperintensity on T2WI, among which 5 (5/6) masses presented as patchy hemorrhage with hyperintensity on T1WI. On enhanced scans, all masses (5/5) showed heterogeneous marked enhancement, with thickening and enhancement in the adjacent spinal meninges (5/5). Various degrees of spinal cord compression and edema were found in 5 cases (5/6). CONCLUSIONS MR imaging is sensitive for detecting and characterizing spinal paragonimiasis. The MR imaging features of intraspinal granulomas included localization to the extradural space and thoracic segment, connections between intraspinal lesions and pleural lesions through the intervertebral foramen, and hemorrhagic foci within the mass. These findings support an intraspinal mode of paragonimiasis pathogenesis: The Paragonimus larvae migrate from the chest into the extradural space through the intervertebral foramen.
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Affiliation(s)
- Y Qin
- From the Departments of Radiology (Y.Q., J.C., L.T., S.J., L.W., X.H.)
| | - J Cai
- From the Departments of Radiology (Y.Q., J.C., L.T., S.J., L.W., X.H.)
| | - W Ji
- Neurosurgery (W.J.), Children's Hospital of Chongqing Medical University, Chongqing, China
| | - X Chen
- Outpatient Surgery (X.C.)
| | - L Tian
- From the Departments of Radiology (Y.Q., J.C., L.T., S.J., L.W., X.H.)
| | - S Jun
- From the Departments of Radiology (Y.Q., J.C., L.T., S.J., L.W., X.H.)
| | - L Wang
- From the Departments of Radiology (Y.Q., J.C., L.T., S.J., L.W., X.H.)
| | - X He
- From the Departments of Radiology (Y.Q., J.C., L.T., S.J., L.W., X.H.)
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22
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Jang D, Pramanik SK, Das A, Baek W, Heo JM, Ro HJ, Jun S, Park BJ, Kim JM. Photoinduced Reversible Bending and Guest Molecule Release of Azobenzene-Containing Polydiacetylene Nanotubes. Sci Rep 2019; 9:15982. [PMID: 31690756 PMCID: PMC6831582 DOI: 10.1038/s41598-019-52462-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 09/30/2019] [Indexed: 12/31/2022] Open
Abstract
Creation of hollow, one-dimensional nanomaterials has gained great recent attention in the chemical and material sciences. In a study aimed at discovering new functional materials of this type, we observed that an amphiphilic diacetylene (DA) derivative, containing an azobenzene moiety and an oligo-ethylene group, self-assembles to form nanotubes and undergoes photopolymerization to form hollow polydiacetylene (PDA) nanotubes with a uniform wall thickness and diameter. The azobenzene-PDA nanotubes are photoresponsive in that on-and-off UV-irradiation leads to a reversible morphological change between straight and bent forms in association with E-Z photoisomerization of the azobenzene group. Owing to the UV-induced structural change feature, the new DA and PDA nanotubes serve as a controlled release material. Accordingly, fluorescent rhodamine B encapsulated inside the nanotubes are effectively released by using repeated on-off UV irradiation. Furthermore, photo-release of rhodamine B was shown to occur in an artemia (brine shrimp).
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Affiliation(s)
- Daewoong Jang
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, Korea
| | - Sumit Kumar Pramanik
- CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364002, Gujarat, India
| | - Amitava Das
- CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364002, Gujarat, India.
| | - Woohyun Baek
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, Korea
| | - Jung-Moo Heo
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, Korea
| | - Hyun-Joo Ro
- Drug and Disease Target Team, Korea Basic Science Institute, Cheongu, 28119, Korea
| | - Sangmi Jun
- Drug and Disease Target Team, Korea Basic Science Institute, Cheongu, 28119, Korea
- Convergent Research Center for Emerging Virus Infection Korea Research Institute of Chemical Technology, Daejeon, 34114, Korea
| | - Bum Jun Park
- Department of Chemical Engineering, Kyung Hee University, Yongin, 17104, Korea.
| | - Jong-Man Kim
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, Korea.
- Institute of Nano Science and Technology, Hanyang University, Seoul, 04763, Korea.
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Lee K, Kim S, Jun S, Song S, Klopprogge K, Song J. Effect of HB variants on HbA1c assays in Korea. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.622] [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: 10/26/2022]
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24
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Han M, Lee K, Jun S, Song S, Song J. Identification of the hemoglobin variants by ultra-performance liquid chromatography - Tandem mass spectrometry. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Heo JM, Son Y, Han S, Ro HJ, Jun S, Kundapur U, Noh J, Kim JM. Thermochromic Polydiacetylene Nanotube from Amphiphilic Macrocyclic Diacetylene in Aqueous Solution. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00635] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | - Hyun-Joo Ro
- Drug & Disease Target Group, Korea Basic Science Institute, Cheongju 28119, Korea
| | - Sangmi Jun
- Drug & Disease Target Group, Korea Basic Science Institute, Cheongju 28119, Korea
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26
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Kim I, Kim H, Chang W, Kim J, Park N, Youn J, Choi S, Jun S, Cho Y, Yoon H, Nam C, Han S, Hur S, Park H. Efficacy and Safety of Idarucizumab for Rapid Reversal from Dabigatran in Patients Undergoing Orthotopic Heart Transplantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.724] [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: 11/29/2022] Open
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27
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Im C, Seo H, Jun S. The effect of number of electrodes in the multi-array tDCS - A computational study. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.437] [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: 10/27/2022] Open
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28
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Jung DW, Ro HJ, Kim J, Kim SI, Yi GR, Lee G, Jun S. Biophysical restriction of growth area using a monodispersed gold sphere nanobarrier prolongs the mitotic phase in HeLa cells. RSC Adv 2019; 9:37497-37506. [PMID: 35542263 PMCID: PMC9075507 DOI: 10.1039/c9ra08410j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 10/15/2019] [Accepted: 11/08/2019] [Indexed: 11/21/2022] Open
Abstract
Homogeneous 83 nm gold nanospheres with a human fibronectin-coated substrate surrounding the cells induce biophysical cues which result in a delay in the mitotic phase of the cell cycle.
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Affiliation(s)
- Dae-Woong Jung
- Korea Basic Science Institute
- Daejeon
- Republic of Korea
- Department of Chemical Engineering
- Sungkyunkwan University
| | - Hyun-Joo Ro
- Korea Basic Science Institute
- Daejeon
- Republic of Korea
- Convergent Research Center for Emerging Virus Infection
- Korea Research Institute of Chemical Technology
| | - Junmin Kim
- Korea Basic Science Institute
- Daejeon
- Republic of Korea
- Department of Chemical Engineering
- Sungkyunkwan University
| | - Seung Il Kim
- Korea Basic Science Institute
- Daejeon
- Republic of Korea
- Convergent Research Center for Emerging Virus Infection
- Korea Research Institute of Chemical Technology
| | - Gi-Ra Yi
- Department of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Gaehang Lee
- Korea Basic Science Institute
- Daejeon
- Republic of Korea
| | - Sangmi Jun
- Korea Basic Science Institute
- Daejeon
- Republic of Korea
- Convergent Research Center for Emerging Virus Infection
- Korea Research Institute of Chemical Technology
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Ahn S, Jun S, Ro HJ, Kim JH, Kim S. Complete Genome of Bacillus subtilis subsp. subtilis KCTC 3135 T and Variation in Cell Wall Genes of B. subtilis Strains. J Microbiol Biotechnol 2018; 28:1760-1768. [PMID: 30441885 DOI: 10.4014/jmb.1712.12006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The type strain Bacillus subtilis subsp. subtilis KCTC 3135T was deeply sequenced and annotated, replacing a previous draft genome in this study. The tar and tag genes were involved in synthesizing wall teichoic acids (WTAs), and these genes and their products were previously regarded as the distinguishing difference between B. s. subtilis and B. s. spizizenii. However, a comparative genomic analysis of B. subtilis spp. revealed that both B. s. subtilis and B. s. spizizenii had various types of cell walls. These tar and tag operons were mutually exclusive and the tar genes from B. s. spizizenii were very similar to the genes from non-Bacillus bacteria, unlike the tag genes from B. s. subtilis. The results and previous studies suggest that the tar genes and the tag genes are not inherited after subspecies speciation. The phylogenetic tree based on whole genome sequences showed that each subspecies clearly formed a monophyletic group, while the tree based on tar genes showed that monophyletic groups were formed according to the cell wall type rather than the subspecies. These findings indicate that the tar genes and the presence of ribitol as a cell-wall constituent were not the distinguishing difference between the subspecies of B. subtilis and that the description of subspecies B. s. spizizenii should be updated.
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Affiliation(s)
- Seonjoo Ahn
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.,Division of Chemical and Medical Metrology, Center for Bioanalysis, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea.,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Sangmi Jun
- Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea.,Drug and Disease Target Team, Korea Basic Science Institute, Chungcheongbuk-do 28119, Republic of Korea.,Department of Bio-Analysis Science, University of Science & Technology (UST), Daejeon 34113, Republic of Korea
| | - Hyun-Joo Ro
- Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea.,Drug and Disease Target Team, Korea Basic Science Institute, Chungcheongbuk-do 28119, Republic of Korea.,Department of Bio-Analysis Science, University of Science & Technology (UST), Daejeon 34113, Republic of Korea
| | - Ju Han Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.,Seoul National University Biomedical Informatics (SNUBI), Division of Biomedical Informatics, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Seil Kim
- Division of Chemical and Medical Metrology, Center for Bioanalysis, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea.,Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea.,Department of Bio-Analysis Science, University of Science & Technology (UST), Daejeon 34113, Republic of Korea
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Ahn S, Jun S, Ro HJ, Kim JH, Kim S. Complete genome of Bacillussubtilis subsp. subtilis KCTC 3135 T and variation in cell wall genes of B. subtilis strains. J Microbiol Biotechnol 2018:10.4014/jmb,1712.12006. [PMID: 30196596 DOI: 10.4014/jmb,1712.12006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 08/24/2018] [Indexed: 11/01/2022]
Abstract
The type strain Bacillus subtilis subsp.subtilis KCTC 3135T was deeply sequenced and annotated, replacing a previous draft genome in this study. The tar and tag genes were involved in synthesizing wall teichoic acids (WTAs), and these genes and their products were previously regarded as the distinguishing difference between B. s. subtilis and B. s. spizizenii. However, a comparative genomic analysis of B. subtilis spp. revealed that both B. s. subtilis and B. s. spizizenii had various types of cell walls. These tar and tag operons were mutually exclusive and the tar genes from B. s. spizizenii were very similar to the genes from non-Bacillus bacteria, unlike the tag genes from B. s. subtilis. The results and previous studies suggests that the tar genes and the tag genes are not inherited after subspecies speciation. The phylogenetic tree based on whole genome sequences showed that each subspecies clearly formed a monophyletic group, while the tree based on tar genes showed that monophyletic groups were formed according to the cell wall type rather than the subspecies. These findings indicate that the tar genes and the presence of ribitol as a cell-wall constituent were not the distinguishing difference between the subspecies of B. subtilis and that the description of subspecies B. s. spizizenii should be updated.
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Affiliation(s)
- Seonjoo Ahn
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
- Division of Chemical and Medical Metrology, Center for Bioanalysis, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
- Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Sangmi Jun
- Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Drug and Disease Target Team, Korea Basic Science Institute, Chungcheongbuk-do 28119, Republic of Korea
- Department of Bio-Analysis Science, University of Science & Technology (UST), Daejeon 34113, Republic of Korea
| | - Hyun-Joo Ro
- Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Drug and Disease Target Team, Korea Basic Science Institute, Chungcheongbuk-do 28119, Republic of Korea
- Department of Bio-Analysis Science, University of Science & Technology (UST), Daejeon 34113, Republic of Korea
| | - Ju Han Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
- Seoul National University Biomedical Informatics (SNUBI), Division of Biomedical Informatics, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Seil Kim
- Division of Chemical and Medical Metrology, Center for Bioanalysis, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
- Convergent Research Center for Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Department of Bio-Analysis Science, University of Science & Technology (UST), Daejeon 34113, Republic of Korea
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Kim J, Lee H, Lee J, Jun S, Gong H, Chung Y, Kim J, Kim J. Development of New Acupotomy Device Based on Acupotomy Clinical Trials. J Acupunct Meridian Stud 2018. [DOI: 10.1016/j.jams.2018.08.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Jun S, Dr J. Modified Hand Elevation Test as an aid in diagnosing carpal tunnel syndrome. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Park EC, Lee SY, Yun SH, Choi CW, Lee H, Song HS, Jun S, Kim GH, Lee CS, Kim SI. Clinical proteomic analysis of scrub typhus infection. Clin Proteomics 2018; 15:6. [PMID: 29449793 PMCID: PMC5812041 DOI: 10.1186/s12014-018-9181-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 01/23/2018] [Indexed: 12/14/2022] Open
Abstract
Background
Scrub typhus is an acute and febrile infectious disease caused by the Gram-negative α-proteobacterium Orientia tsutsugamushi from the family Rickettsiaceae that is widely distributed in Northern, Southern and Eastern Asia. In the present study, we analysed the serum proteome of scrub typhus patients to investigate specific clinical protein patterns in an attempt to explain pathophysiology and discover potential biomarkers of infection. Methods Serum samples were collected from three patients (before and after treatment with antibiotics) and three healthy subjects. One-dimensional sodium dodecyl sulphate–polyacrylamide gel electrophoresis followed by liquid chromatography-tandem mass spectrometry was performed to identify differentially abundant proteins using quantitative proteomic approaches. Bioinformatic analysis was then performed using Ingenuity Pathway Analysis. Results Proteomic analysis identified 236 serum proteins, of which 32 were differentially expressed in normal subjects, naive scrub typhus patients and patients treated with antibiotics. Comparative bioinformatic analysis of the identified proteins revealed up-regulation of proteins involved in immune responses, especially complement system, following infection with O. tsutsugamushi, and normal expression was largely rescued by antibiotic treatment. Conclusions This is the first proteomic study of clinical serum samples from scrub typhus patients. Proteomic analysis identified changes in protein expression upon infection with O. tsutsugamushi and following antibiotic treatment. Our results provide valuable information for further investigation of scrub typhus therapy and diagnosis. Electronic supplementary material The online version of this article (10.1186/s12014-018-9181-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Edmond Changkyun Park
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea.,2Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114 Republic of Korea.,3Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, 34113 Republic of Korea
| | - Sang-Yeop Lee
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea.,2Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114 Republic of Korea
| | - Sung Ho Yun
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea
| | - Chi-Won Choi
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea.,4Division of Life Science, Tunneling Nanotube Research Center, Korea University, Seoul, 02841 Republic of Korea
| | - Hayoung Lee
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea.,3Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, 34113 Republic of Korea
| | - Hyun Seok Song
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea.,2Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114 Republic of Korea.,3Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, 34113 Republic of Korea
| | - Sangmi Jun
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea.,2Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114 Republic of Korea.,3Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, 34113 Republic of Korea
| | - Gun-Hwa Kim
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea.,3Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, 34113 Republic of Korea.,4Division of Life Science, Tunneling Nanotube Research Center, Korea University, Seoul, 02841 Republic of Korea
| | - Chang-Seop Lee
- 5Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, 54986 Republic of Korea.,6Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, 54907 Republic of Korea
| | - Seung Il Kim
- 1Drug & Disease Target Team, Korea Basic Science Institute (KBSI), Cheongju, 28119 Republic of Korea.,2Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114 Republic of Korea.,3Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, 34113 Republic of Korea
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Jun S. SCREENING, BRIEF INTERVENTION, AND REFERRAL TO TREATMENT (SBIRT) FOR ADOLESCENT ALCOHOL USE IN EMERGENCY DEPARTMENTS: A NATIONAL SURVEY OF PEDIATRIC EMERGENCY PHYSICIANS. Paediatr Child Health 2017. [DOI: 10.1093/pch/pxx086.102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yun SH, Lee SY, Choi CW, Lee H, Ro HJ, Jun S, Kwon YM, Kwon KK, Kim SJ, Kim GH, Kim SI. Proteomic characterization of the outer membrane vesicle of the halophilic marine bacterium Novosphingobium pentaromativorans US6-1. J Microbiol 2016; 55:56-62. [PMID: 28035602 DOI: 10.1007/s12275-017-6581-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 11/14/2016] [Revised: 12/06/2016] [Accepted: 12/08/2016] [Indexed: 12/12/2022]
Abstract
Novosphingobium pentaromativorans US6-1 is a Gram-negative halophilic marine bacterium able to utilize several polycyclic aromatic hydrocarbons such as phenanthrene, pyrene, and benzo[a]pyrene. In this study, using transmission electron microscopy, we confirmed that N. pentaromativorans US6-1 produces outer membrane vesicles (OMVs). N. pentaromativorans OMVs (hereafter OMVNovo) are spherical in shape, and the average diameter of OMVNovo is 25-70 nm. Proteomic analysis revealed that outer membrane proteins and periplasmic proteins of N. pentaromativorans are the major protein components of OMVNovo. Comparative proteomic analysis with the membrane-associated protein fraction and correlation analysis demonstrated that the outer membrane proteins of OMVNovo originated from the membrane- associated protein fraction. To the best of our knowledge, this study is the first to characterize OMV purified from halophilic marine bacteria.
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Affiliation(s)
- Sung Ho Yun
- Drug and Disease Target Team, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Sang-Yeop Lee
- Drug and Disease Target Team, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Chi-Won Choi
- Tunneling Nanotube Research Center, Division of Life Science, Korea University, Seoul, 02841, Republic of Korea
| | - Hayoung Lee
- Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Hyun-Joo Ro
- Drug and Disease Target Team, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Sangmi Jun
- Drug and Disease Target Team, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Yong Min Kwon
- National Marine Biodiversity Institute of Korea, Seocheon, 33662, Republic of Korea
| | - Kae Kyoung Kwon
- Korea Institute of Ocean Science and Technology, Ansan, 15627, Republic of Korea
| | - Sang-Jin Kim
- Korea Institute of Ocean Science and Technology, Ansan, 15627, Republic of Korea.,National Marine Biodiversity Institute of Korea, Seocheon, 33662, Republic of Korea
| | - Gun-Hwa Kim
- Drug and Disease Target Team, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Seung Il Kim
- Drug and Disease Target Team, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea. .,Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
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Takenami T, Maeda S, Karasawa H, Mochizuki Y, Aizawa T, Jun S, Musha H, Morikawa T, Nakagawa K, Hayashi H, Motoi F, Naitoh T, Unno M. 46P Identification of novel biomarkers distinguishing pancreatic head cancer from distal cholangiocarcinoma discovered by proteomics analysis. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw574.019] [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: 11/13/2022] Open
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Jun S, Karasawa H, Suzuki T, Nakayama S, Katagiri M, Maeda S, Ohnuma S, Motoi F, Naitoh T, Unno M. 34P The expression and functional role of Cripto-1 in human colorectal cancer. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00194-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Jun S, Karasawa H, Suzuki T, Nakayama S, Katagiri M, Maeda S, Ohnuma S, Motoi F, Naitoh T, Unno M. 34P The expression and functional role of Cripto-1 in human colorectal cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw574.007] [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: 11/14/2022] Open
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Sarkar S, Jun S, Rellick S, Quintana DD, Cavendish JZ, Simpkins JW. Expression of microRNA-34a in Alzheimer's disease brain targets genes linked to synaptic plasticity, energy metabolism, and resting state network activity. Brain Res 2016; 1646:139-151. [PMID: 27235866 DOI: 10.1016/j.brainres.2016.05.026] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [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: 03/15/2016] [Revised: 05/06/2016] [Accepted: 05/13/2016] [Indexed: 01/07/2023]
Abstract
Polygenetic risk factors and reduced expression of many genes in late-onset Alzheimer's disease (AD) impedes identification of a target(s) for disease-modifying therapies. We identified a single microRNA, miR-34a that is over expressed in specific brain regions of AD patients as well as in the 3xTg-AD mouse model. Specifically, increased miR-34a expression in the temporal cortex region compared to age matched healthy control correlates with severity of AD pathology. miR-34a over expression in patient's tissue and forced expression in primary neuronal culture correlates with concurrent repression of its target genes involved in synaptic plasticity, oxidative phosphorylation and glycolysis. The repression of oxidative phosphorylation and glycolysis related proteins correlates with reduced ATP production and glycolytic capacity, respectively. We also found that miR-34a overexpressed neurons secrete miR-34a containing exosomes that are taken up by neighboring neurons. Furthermore, miR-34a targets dozens of genes whose expressions are known to be correlated with synchronous activity in resting state functional networks. Our analysis of human genomic sequences from the tentative promoter of miR-34a gene shows the presence of NFκB, STAT1, c-Fos, CREB and p53 response elements. Together, our results raise the possibilities that pathophysiology-induced activation of specific transcription factor may lead to increased expression of miR-34a gene and miR-34a mediated concurrent repression of its target genes in neural networks may result in dysfunction of synaptic plasticity, energy metabolism, and resting state network activity. Thus, our results provide insights into polygenetic AD mechanisms and disclose miR-34a as a potential therapeutic target for AD.
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Affiliation(s)
- S Sarkar
- Center for Basic and Translational Stroke Research, Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26506, United States
| | - S Jun
- Center for Basic and Translational Stroke Research, Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26506, United States
| | - S Rellick
- Center for Basic and Translational Stroke Research, Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26506, United States
| | - D D Quintana
- Center for Basic and Translational Stroke Research, Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26506, United States
| | - J Z Cavendish
- Center for Basic and Translational Stroke Research, Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26506, United States
| | - J W Simpkins
- Center for Basic and Translational Stroke Research, Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV 26506, United States.
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Song C, Lee JH, Jun S, Chung JM, Hyun J, Jung HS. Technical Advances in Intracellular Detection Using Immuno-Gold Particles: Simple Cryofixation with Metal Contact Quick Freezing. J Nanosci Nanotechnol 2016; 16:4593-4597. [PMID: 27483796 DOI: 10.1166/jnn.2016.11002] [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: 06/06/2023]
Abstract
The preparation of biological specimens using cryofixation techniques ensures excellent visibility of intracellular structures and preserves the antigenic sites of subcellular molecules. Hence, cryofixation is an effective method of preparing samples for analyses using antibodies conjugated to gold nanoparticles that are designed to detect the localization of specific target molecules within cells. However, cryofixation cannot be utilized easily because it requires expensive equipment and skilled technologists, resulting in a high level of expense for researchers. Here, we describe a simple technical approach to cryofixation that uses metal contact quick freezing followed by a modified freeze substitution technique and immuno-gold labeling electron microscopy. Micrograph images of cells prepared using this modified cryofixation method demonstrated its superiority over chemical fixation for high contrast visualization of the morphologies of cellular components and preservation of antigenicity for immuno-gold labeling. This report provides valuable technical information related to the advancement of metal contact quick freezing techniques, which can be used to visualize biomedical events of interest in an easy, simple, and rapid manner.
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Jun S, Kim H, Nam HY. A new method for segmentation of FDG PET metabolic tumour volume using the peritumoural halo layer and a 10-step colour scale. A study in patients with papillary thyroid carcinoma. Nuklearmedizin 2015; 54:272-85. [PMID: 26429587 DOI: 10.3413/nukmed-0749-15-06] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 09/22/2015] [Indexed: 12/15/2022]
Abstract
AIM We observed a layer between tumour activity and background on FDG PET/CT with the 10-step colour scale and the window level set properly. We named the layer peritumoral halo layer (PHL). We performed this study to establish the reliability of metabolic tumor volume (MTV) segmentation using PHL (MTV(PHL)) in patients with papillary thyroid carcinoma. PATIENTS, METHODS Of a total of 140 papillary thyroid carcinoma (PTC) patients, 70 (50.0%) had FDG-avid PTC. In these patients, MTV(PHL), MTV segmented according to fixed 50% SUVmax (MTV(50%)), and fixed SUV with 2.5 to 4.0 (MTV(2.5) to MTV(4.0)) were compared with pathologic tumour volume (PTV). The absolute percentage difference between MTV(PHL) and PTV was compared in micropapillary carcinoma (MPTC) and non-micropapillary carcinoma (non-MPTC) subgroups. The % SUVmax and SUV thresholds of MTV(PHL) were compared with tumour SUVmax. RESULTS Among the MTVs, MTV(50%) was not correlated with PTV (r = -0.16, p = 0.182) and was not reliable according to the Bland-Altman plot. Although MTV(2.5), MTV(3.0), MTV(3.5), and MTV(4.0) correlated with PTV (r = 0.85, 0.86, 0.87, and 0.87, respectively; p < 0.001), these MTVs were not reliable on Bland-Altman analyses. MTV(PHL) was significantly correlated with PTV (r = 0.80, p < 0.001), and the Bland-Altman plot did not show systemic error. The MTV(PHL) was more accurate in non-MPTC than in MPTC (p < 0.001), and the absolute % difference was smaller as PTV became larger (σ = -0.65, p < 0.001). The MTV(PHL) thresholds had correlations with SUVmax (% SUVmax threshold: σ = -0.87, p < 0.001; SUV threshold: r = 0.88, p < 0.001). CONCLUSIONS MTV(PHL) was more reliable than MTV(%SUVmax) or MTV(SUV). The reliability of MTV(PHL) improved with larger PTVs. The threshold of the MTV(PHL) was naturally altered by PHL according to SUVmax.
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Affiliation(s)
| | | | - H-Y Nam
- Hyun-Yeol Nam, M.D., Samsung Changwon Hospital, 158, Paryong-ro, Masan Hoewon-gu, Changwon-si, Korea, 630-723, Tel. +82/55/290-65 93; Fax -55 98,
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Qianqian Y, Yong Y, Zhaodong C, Yonghui T, Jun S, Yuzheng H. Differential Protein Expression between Type 1 Diabetic Cataract and Age-Related Cataract Patients. Folia Biol (Praha) 2015; 61:74-80. [PMID: 26333124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Diabetes has become one of the major diseases affecting human health. Diabetic cataracts (DCs) are considered a common complication in diabetic patients. The present study investigated differences in lens proteomic profiles between DCs and age-related cataracts (ACs) to determine the mechanism underlying the formation of DCs. Intrasurgical samples were collected from eight DC patients and 12 AC patients, and lens proteins were extracted by lysis and separated using two-dimensional gel electrophoresis (2-DE). The electrophoretic bands were analysed using PD-Quest software 8.0.1. Differentially expressed proteins were identified by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) and peptide mass fingerprinting combined with protein database searching. In the 2-DE maps, the DC and AC lens proteins migrated in the region of pH 5-9 with a relative molecular weight (RMW) of 14-97 kDa, whereas the RMW of more abundant crystallin was 20-31 kDa. Approximately three protein spots with differential intensity were detected. Two crystallin proteins (αB and βB1) were identified using MALDI-TOF-MS. Proteomic analysis of the crystalline humour is feasible, and the proteins can be well separated; moreover, differentially expressed lens proteins can be analysed using 2-DE and mass spectrometry to compare DC and AC. The present results indicate that the αB and βB1 crystallins may accelerate the development of DCs. These techniques offer new avenues for mechanistic evaluation and future prevention or therapy of DCs.
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Affiliation(s)
- Y Qianqian
- Department of Ophthalmology, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Y Yong
- Department of Ophthalmology, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - C Zhaodong
- Department of Ophthalmology, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - T Yonghui
- The Key Lab of Technology on Parasitic Diseases Prevent and Control, Ministry of Health; Jiangsu Institute of Parasitic Diseases, Wuxi, China
| | - S Jun
- Department of Ophthalmology, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - H Yuzheng
- The Key Lab of Technology on Parasitic Diseases Prevent and Control, Ministry of Health; Jiangsu Institute of Parasitic Diseases, Wuxi, China
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Choi Y, Ju S, Chae SH, Jun S, Park SM, Lee S, Lee HW, Ji CH. Low Frequency Vibration Energy Harvester Using Spherical Permanent Magnet with Non-uniform Mass Distribution. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/476/1/012123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Chae SH, Ju S, Choi Y, Jun S, Park SM, Lee S, Lee HW, Ji CH. Electromagnetic Vibration Energy Harvester Using Springless Proof Mass and Ferrofluid as a Lubricant. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/476/1/012013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Wei Z, Jun S, Hui Z, Quan X, Liu B. NMR metabonomics analysis of helicopter aviators in maritime. ARCH MAL PROF ENVIRO 2013. [DOI: 10.1016/j.admp.2013.07.077] [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: 10/26/2022]
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Abstract
Cryo-electron tomography (cryoET) allows 3D visualization of cellular structures at molecular resolution in a close-to-physiological state(1). However, direct visualization of individual viral complexes in their host cellular environment with cryoET is challenging(2), due to the infrequent and dynamic nature of viral entry, particularly in the case of HIV-1. While time-lapse live-cell imaging has yielded a great deal of information about many aspects of the life cycle of HIV-1(3-7), the resolution afforded by live-cell microscopy is limited (~200 nm). Our work was aimed at developing a correlation method that permits direct visualization of early events of HIV-1 infection by combining live-cell fluorescent light microscopy, cryo-fluorescent microscopy, and cryoET. In this manner, live-cell and cryo-fluorescent signals can be used to accurately guide the sampling in cryoET. Furthermore, structural information obtained from cryoET can be complemented with the dynamic functional data gained through live-cell imaging of fluorescent labeled target. In this video article, we provide detailed methods and protocols for structural investigation of HIV-1 and host-cell interactions using 3D correlative high-speed live-cell imaging and high-resolution cryoET structural analysis. HeLa cells infected with HIV-1 particles were characterized first by confocal live-cell microscopy, and the region containing the same viral particle was then analyzed by cryo-electron tomography for 3D structural details. The correlation between two sets of imaging data, optical imaging and electron imaging, was achieved using a home-built cryo-fluorescence light microscopy stage. The approach detailed here will be valuable, not only for study of virus-host cell interactions, but also for broader applications in cell biology, such as cell signaling, membrane receptor trafficking, and many other dynamic cellular processes.
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Affiliation(s)
- Sangmi Jun
- Department of Structural Biology, University of Pittsburgh School of Medicine, USA
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Jun S, Ke D, Debiec K, Zhao G, Meng X, Ambrose Z, Gibson GA, Watkins SC, Zhang P. Direct Visualization of HIV-1 with Correlative Live-Cell Microscopy and Cryo-ElectronTomography. Biophys J 2013. [DOI: 10.1016/j.bpj.2012.11.1964] [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: 10/27/2022] Open
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Jun S, Choi KJ, Kim MJ, Kweon HS. Significant strategies for the successful performance of cryo-electron tomography. J Anal Sci Technol 2012. [DOI: 10.5355/jast.2012.202] [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: 11/11/2022] Open
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Jun S, Choi KJ, Kim MJ, Kweon HS. Significant strategies for the successful performance of cryo-electron tomography. J Anal Sci Technol 2012. [DOI: 10.5355/jast.2012.203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Choi W, Jun S, Nguyen L, Rungraeng N, Yi H, Balasubramanian S, Puri V, Lee J. 3-D Milk Fouling Modeling of Plate Heat Exchangers with Different Surface Finishes Using Computational Fluid Dynamics Codes. J FOOD PROCESS ENG 2012. [DOI: 10.1111/j.1745-4530.2012.00684.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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