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Griñán‐Ferré C, Jarné‐Ferrer J, Bellver‐Sanchís A, Codony S, Puigoriol‐Illamola D, Sanfeliu C, Oh Y, Lee S, Vázquez S, Pallàs M. Novel molecular mechanism driving neuroprotection after soluble epoxide hydrolase inhibition: Insights for Alzheimer's disease therapeutics. CNS Neurosci Ther 2024; 30:e14511. [PMID: 37905690 PMCID: PMC11017401 DOI: 10.1111/cns.14511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 09/21/2023] [Accepted: 10/09/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND Neuroinflammation is widely recognized as a significant hallmark of Alzheimer's disease (AD). To combat neuroinflammation, the inhibition of the soluble epoxide hydrolase (sEH) enzyme has been demonstrated crucial. Importantly, sEH inhibition could be related to other neuroprotective pathways described in AD. AIMS The aim of the study was to unveil new molecular pathways driving neuroprotection through sEH, we used an optimized, potent, and selective sEH inhibitor (sEHi, UB-SCG-51). MATERIALS AND METHODS UB-SCG-51 was tested in neuroblastoma cell line, SH-SY5Y, in primary mouse and human astrocytes cultures challenged with proinflammatory insults and in microglia cultures treated with amyloid oligomers, as well as in mice AD model (5XFAD). RESULTS UB-SCG-51 (10 and 30 μM) prevented neurotoxic reactive-astrocyte conversion in primary mouse astrocytes challenged with TNF-α, IL-1α, and C1q (T/I/C) combination for 24 h. Moreover, in microglial cultures, sEHi reduced inflammation and glial activity. In addition, UB-SCG-51 rescued 5XFAD cognitive impairment, reducing the number of Amyloid-β plaques and Tau hyperphosphorylation accompanied by a reduction in neuroinflammation and apoptotic markers. Notably, a transcriptional profile analysis revealed a new pathway modulated by sEHi treatment. Specifically, the eIF2α/CHOP pathway, which promoted the endoplasmic reticulum response, was increased in the 5XFAD-treated group. These findings were confirmed in human primary astrocytes by combining sEHi and eIF2α inhibitor (eIF2αi) treatment. Besides, combining both treatments resulted in increased in C3 gene expression after T/I/C compared with the group treated with sEHi alone in cultures. DISCUSSION Therefore, sEHi rescued cognitive impairment and neurodegeneration in AD mice model, based on the reduction of inflammation and eIF2α/CHOP signaling pathway. CONCLUSIONS In whole, our results support the concept that targeting neuroinflammation through sEH inhibition is a promising therapeutic strategy to fight against Alzheimer's disease with additive and/or synergistic activities targeting neuroinflammation and cell stress.
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Affiliation(s)
- Christian Griñán‐Ferré
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
- Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos IIIMadridSpain
| | - Júlia Jarné‐Ferrer
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
| | - Aina Bellver‐Sanchís
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
| | - Sandra Codony
- Laboratory of Medicinal Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, Institute of Biomedicine (IBUB)University of Barcelona (UB)BarcelonaSpain
| | - Dolors Puigoriol‐Illamola
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
| | - Coral Sanfeliu
- Institut d'Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC)BarcelonaSpain
| | - Yumin Oh
- Neuraly Inc.MarylandGaithersburgUSA
| | | | - Santiago Vázquez
- Laboratory of Medicinal Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, Institute of Biomedicine (IBUB)University of Barcelona (UB)BarcelonaSpain
| | - Mercè Pallàs
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
- Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos IIIMadridSpain
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Jung J, Oh Y, Cha S, Ohe J. An analysis of contributing factors of head and neck space infections of odontogenic origin: A long-term retrospective clinical study (including COVID-19 pandemic period). Med Oral Patol Oral Cir Bucal 2023; 28:e622-e629. [PMID: 37330958 PMCID: PMC10635621 DOI: 10.4317/medoral.26018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 05/15/2023] [Indexed: 06/20/2023] Open
Abstract
BACKGROUND The purpose of this study is to investigate predisposing factors for the head and neck infections (HNIs), regarding to the demographic data, anatomical spaces, microbiology and antibiotic sensitivity for affected patients. MATERIAL AND METHODS A 13-year of retrospective study evaluating 470 patients with HNIs, treated as inpatient management in the Department of Oral and Maxillofacial Surgery of KyungHee University school of Dentistry, Seoul, Korea, from January 2009 to February 2022. Statistical analysis of demographic, time-related, anatomic, microbiologic, and treatment variables were investigated for each patient. RESULTS The frequency of HNIs was significantly higher in 50's in males, followed by 70's in females. High Severity score (SS) were significantly associated with increased LOH (Length of hospital stay) and LOM (Length of medication), while LOH showed more intensive relationship compared with LOM. The most frequently involved space in abscess was submandibular space, though incidence and severity of HNIs shows declining tendency throughout 13-year research. Streptococcus viridans was the most predominant species isolated from pus culture growth, and a combination of ampicillin and sulbactam was the 1st choice of antibiotics intravenously. According to the comparison analysis between recommended antibiotics from resistance testing result and clinically administered antibiotics, final coincidence rate was estimated about 55%. CONCLUSIONS Due to HNIs being multifactorial, predicting progression and management of HNIs is still a challenge for oral and maxillofacial surgeons. The present study showed several predisposing factors of SHNIs and their correlations, which could contribute to earlier diagnosis and more effective treatment planning for clinicians, thereby leading to the improvement of prognosis for patients, ultimately.
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Affiliation(s)
- J Jung
- Department of Oral and Maxillofacial Surgery 02447 Seoul, Republic of Korea
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Meng T, Zheng J, Chen M, Zhao Y, Sudarjat H, M.R. AA, Kulkarni V, Oh Y, Xia S, Ding Z, Han H, Anders N, Rudek MA, Chow W, Stark W, Ensign LM, Hanes J, Xu Q. Six-month effective treatment of corneal graft rejection. Sci Adv 2023; 9:eadf4608. [PMID: 36947612 PMCID: PMC10032610 DOI: 10.1126/sciadv.adf4608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Topical corticosteroid eye drop is the mainstay for preventing and treating corneal graft rejection. While the frequent topical corticosteroid use is associated with risk of intraocular pressure (IOP) elevation and poor patient compliance that leads to graft failure and the requirement for a repeated, high-risk corneal transplantation. Here, we developed dexamethasone sodium phosphate (DSP)-loaded dicarboxyl-terminated poly(lactic acid) nanoparticle (PLA DSP-NP) formulations with relatively high drug loading (8 to 10 weight %) and 6 months of sustained intraocular DSP delivery in rats with a single dosing. PLA DSP-NP successfully reversed early signs of corneal rejection, leading to rat corneal graft survival for at least 6 months. Efficacious PLA DSP-NP doses did not affect IOP and showed no signs of ocular toxicity in rats for up to 6 months. Subconjunctival injection of DSP-NP is a promising approach for safely preventing and treating corneal graft rejection with the potential for improved patient adherence.
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Affiliation(s)
- Tuo Meng
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Jinhua Zheng
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, USA
- Department of Ophthalmology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Min Chen
- Eye Institute of Shandong First Medical University, Qingdao Eye Hospital of Shandong First Medical University, Qingdao, Shandong 266073, China
- Department of Ophthalmology, The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
- Center for Nanomedicine, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Yang Zhao
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, USA
- Department of Ophthalmology, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Hadi Sudarjat
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Aji Alex M.R.
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Vineet Kulkarni
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Yumin Oh
- Center for Nanomedicine, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Shiyu Xia
- Center for Nanomedicine, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Zheng Ding
- Center for Nanomedicine, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Hyounkoo Han
- Department of Ophthalmology, The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
- Center for Nanomedicine, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Nicole Anders
- Department of Medicine, The Johns Hopkins University, Baltimore, MD 21231, USA
| | - Michelle A. Rudek
- Department of Medicine, The Johns Hopkins University, Baltimore, MD 21231, USA
| | - Woon Chow
- Department of Ophthalmology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Walter Stark
- Department of Ophthalmology, The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
- Center for Nanomedicine, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Laura M. Ensign
- Department of Ophthalmology, The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
- Center for Nanomedicine, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Justin Hanes
- Department of Ophthalmology, The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
- Center for Nanomedicine, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Qingguo Xu
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, USA
- Department of Ophthalmology, Virginia Commonwealth University, Richmond, VA 23298, USA
- Center for Pharmaceutical Engineering and Institute for Structural Biology, Drug Discovery and Development (ISB3D), Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
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Bruce N, Wei IA, Leng W, Oh Y, Chiu YC, Roper MG, Bertram R. Coordination of pancreatic islet rhythmic activity by delayed negative feedback. Am J Physiol Endocrinol Metab 2022; 323:E492-E502. [PMID: 36223522 PMCID: PMC9722252 DOI: 10.1152/ajpendo.00123.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 10/04/2022] [Accepted: 10/08/2022] [Indexed: 11/22/2022]
Abstract
Secretion of insulin from the pancreas is pulsatile, driven by intrinsic oscillations within individual islets of Langerhans. The secretions are coordinated among the many islets distributed throughout the pancreas producing a synchronized rhythm in vivo that is essential for maintaining normal glucose levels. One hypothesized mechanism for the coordination of islet activity is negative feedback, whereby sequestration of glucose in response to elevated insulin leads to a reduction in the blood glucose level that is sensed by the islet population. This global signal of glucose then coordinates the individual islets. In this study, we tested how this coordination mechanism is affected by time delays in the negative feedback, using a microfluidic system to monitor Ca2+ levels in a small population of islets and implementing glucose control through a negative feedback system. We found that islet synchronization occurs even with time delays in the feedback of up to 7 min. We also found that a second, slower closed-loop oscillation period is produced during delayed feedback in which islet oscillations are clustered into episodes. The period of this second oscillatory mode increases with the time delay and appears to be a second stable behavior that coexists with the faster synchronized oscillation. The general conclusion is that islet coordination through negative feedback is a viable means of islet coordination that is robust to delays in the timing of the feedback, and could complement other potential coordination mechanisms such as entrainment by pancreatic ganglia.NEW & NOTEWORTHY Insulin secretion from islets of Langerhans is rhythmic, and these rhythms are coordinated to produce oscillatory plasma insulin levels. Using a combination of microfluidics and computational modeling, we demonstrate that coordination can occur through negative feedback of the type provided by the liver, even if that feedback is delayed by several minutes. We also demonstrate that a second, slower, mode of oscillations can occur when feedback is delayed where faster oscillations are grouped into episodes.
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Affiliation(s)
- N. Bruce
- Department of Mathematics, Florida State University, Tallahassee, Florida
| | - I.-A. Wei
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida
| | - W. Leng
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida
| | - Y. Oh
- Department of Mathematics, Florida State University, Tallahassee, Florida
| | - Y.-C. Chiu
- Department of Physics, Florida State University, Tallahassee, Florida
| | - M. G. Roper
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida
| | - R. Bertram
- Department of Mathematics, Florida State University, Tallahassee, Florida
- Programs in Molecular Biophysics and Neuroscience, Florida State University, Tallahassee, Florida
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Oh Y, LeVine K, Reed E, Siff J, Papp J, Wilson L, Piktel J. 264 Did COVID-19 Mitigation Affect the Accessibility and Usage of Emergency Department-Based Programs to Combat Opioid Use Disorder? Ann Emerg Med 2022. [PMCID: PMC9519243 DOI: 10.1016/j.annemergmed.2022.08.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Reed E, Siff J, LeVine K, Oh Y, Wilson L, Papp J, Piktel J. 192 Using the Electronic Health Record to Identify Patients Presenting to the Emergency Department at Highest Risk for Subsequent Overdose. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.216] [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]
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Papp J, Reed E, Oh Y, LeVine K, Wilson L, Siff J, Piktel J. 298 Evaluation of a Multi-Pronged Emergency Department-Based Approach to Reduce Subsequent Overdoses in a High-Risk Emergency Department Population of Opioid Users. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.325] [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: 11/16/2022]
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8
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Kim E, Oh Y, Kang S. P10.07.B Differential YAP activity in human glioblastoma tumorspheres. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Although glioblastoma (GBM) is the most common primary brain tumor, the best available treatment options are still associated with poor prognosis. Recently, the Hippo/YAP signaling pathway has been emerged as an important driver of GBM. Nevertheless, extensive studies have not yet been focused on the importance of phosphorylation event in regulating endogenous YAP activity in GBM. Here, we sought to elucidate that the modulation and stabilization of YAP/TAZ in Hippo pathway promotes GBM progression.
Material and Methods
Expression patterns of YAP1, TAZ, CTGF, TEAD4 and LATS1 mRNA were confirmed in human normal and GBM tissue, and patient survival according to YAP1 expression was confirmed in TCGA and Severance cohort. The YAP1 expression patterns in several TSs were classified into SOH and AH according to transcriptome analysis and western blot. For each classified TSs, the characteristics of SOH and AH were comparatively analyzed through immunoprecipitation, nucleus fraction, TEAD4 luciferase assay, and confocal analysis. The effect of YAP1 knockdown/out and overexpression in SOH and AH TSs were measured by WST/ATP analysis, 3D invasion and neurosphere formation, and western blot. In addition, the drug reactivity of SOH and AH TSs was examined by treatment with the YAP1 inhibitors Peptide17 and verteporfin, and the effects of Peptide17, verteporfin and YAP1-shRNA were examined in in-vivo xenograft model.
Results
YAP1 mRNA levels including TAZ, CTGF, TEAD4 and LATS1 were higher in GBM than in normal tissues. Through transcriptome analysis and western blot, TS can be divided into SOH and AH groups according to the expression level of CTGF, but not YAP1 level. In the case of SOH TS, the binding of TEAD4 was strong in immunoprecipitation, the ratio of YAP1 was higher in the nucleus in the nucleus fractionation and confocal analysis, and the luciferase activity of TEAD4 was high in the TEAD4 luciferase assay. On the other hand, in the case of TS of AH, the opposite trend was observed. When YAP1 was knocked down or out, the proliferation, invasion, and stemness of TS tended to be decrease more in SOH TS than in AH TS, and SOH TS showed more sensitive drug response even in Peptide17 and Verteporfin treatment. In the case of YAP1 overexpression, the opposite trend was observed in SOH TS. In the in-vivo xenograft model, injection of Peptide17, verteporfin, and YAP1-shRNA showed a tendency to increase the survival rate of mice.
Conclusion
The association of YAP has been described in several cancers, but there has been no study comparing GBM TS by YAP expression and classifying it at the functional level. Now, for the first time, we show that the characteristics of GBM TS can be predicted according to the expression value of YAP, respectively, and YAP is expected to be applied as an important prognostic factor for GBM treatment in the future.
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Affiliation(s)
- E Kim
- Yonsei University College of Medicine , Seoul , Korea, Republic of
| | - Y Oh
- Yonsei University College of Medicine , Seoul , Korea, Republic of
| | - S Kang
- Yonsei University College of Medicine , Seoul , Korea, Republic of
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9
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Sukhadia B, Tan D, Oh Y, Chae Y. EP08.02-023 Differentiation Syndrome in a Patient with Non-Small-Cell Lung Cancer Harboring IDH2 Mutation Treated with Enasidenib. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.705] [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: 10/14/2022]
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10
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Kim L, Oh Y, Yoon S, Park J, Chae Y. P2.12-04 The Role of Serum Proteomic Signature in Predicting Survival in PD-L1 Low Non-small Cell Lung Cancer Receiving Immune Checkpoint Inhibitor (ICI). J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.252] [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: 11/27/2022]
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Choi R, Park M, Oh Y, Kim S, Lee S, Lee E. M158 Validation of various equations for calculated serum LDL cholesterol in Korean. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.040] [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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12
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Lee E, Lee S, Oh Y, Choi R. W083 Understanding a patient population of syphilis serology tests in Korea. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.821] [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]
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13
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Kwon SH, Kim S, Park AY, Lee S, Gadhe CG, Seo BA, Park JS, Jo S, Oh Y, Kweon SH, Ma SX, Kim WR, Kim M, Kim H, Kim JE, Lee S, Lee J, Ko HS. Correction to "A Novel, Selective c-Abl Inhibitor, Compound 5, Prevents Neurodegeneration in Parkinson's Disease". J Med Chem 2021; 64:18237. [PMID: 34854297 DOI: 10.1021/acs.jmedchem.1c01988] [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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Zhou L, Xu Z, Oh Y, Gamuyao R, Lee G, Xie Y, Cho H, Lee S, Duh EJ. Myeloid cell modulation by a GLP-1 receptor agonist regulates retinal angiogenesis in ischemic retinopathy. JCI Insight 2021; 6:93382. [PMID: 34673570 PMCID: PMC8675187 DOI: 10.1172/jci.insight.93382] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 10/20/2021] [Indexed: 01/04/2023] Open
Abstract
Ischemic retinopathies including diabetic retinopathy are major causes of blindness. Although neurons and Müller glia are recognized as important regulators of reparative and pathologic angiogenesis, the role of mononuclear phagocytes (MPs) — particularly microglia, the resident retinal immune cells — is unclear. Here, we found MP activation in human diabetic retinopathy, especially in neovessels from human neovascular membranes in proliferative retinopathy, including TNF-α expression. There was similar activation in the mouse oxygen-induced retinopathy (OIR) model of ischemia-induced neovascularization. Glucagon-like peptide-1 receptor (GLP-1R) agonists are in clinical use for glycemic control in diabetes and are also known to modulate microglia. Herein, we investigated the effect of a long-acting GLP-1R agonist, NLY01. Following intravitreal administration, NLY01 selectively localized to MPs in retina with OIR. NLY01 modulated MPs but not retinal endothelial cell viability, apoptosis, and tube formation in vitro. In OIR, NLY01 treatment inhibited MP infiltration and activation, including MP expression of cytokines in vivo. NLY01 significantly suppressed global induction of retinal inflammatory cytokines, promoted reparative angiogenesis, and suppressed pathologic retinal neovascularization. Collectively, these findings indicate the important role of mononuclear phagocytes in regulation of retinal vascularization in ischemia and suggest modulation of MPs as a potentially new treatment strategy for ischemic retinopathies.
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Affiliation(s)
| | | | - Yumin Oh
- Wilmer Eye Institute and.,The Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | | | | | | | - Seulki Lee
- Wilmer Eye Institute and.,The Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Kwon SH, Kim S, Park AY, Lee S, Gadhe CG, Seo BA, Park JS, Jo S, Oh Y, Kweon SH, Ma SX, Kim WR, Kim M, Kim H, Kim JE, Lee S, Lee J, Ko HS. A Novel, Selective c-Abl Inhibitor, Compound 5, Prevents Neurodegeneration in Parkinson's Disease. J Med Chem 2021; 64:15091-15110. [PMID: 34583507 DOI: 10.1021/acs.jmedchem.1c01022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder that affects movement. The nonreceptor tyrosine kinase c-Abl has shown a potential role in the progression of PD. As such, c-Abl inhibition is a promising candidate for neuroprotection in PD and α-synucleinopathies. Compound 5 is a newly synthesized blood-brain barrier penetrant c-Abl inhibitor with higher efficacy than existing inhibitors. The objective of the current study was to demonstrate the neuroprotective effects of compound 5 on the α-synuclein preformed fibril (α-syn PFF) mouse model of PD. Compound 5 significantly reduced neurotoxicity, activation of c-Abl, and Lewy body pathology caused by α-syn PFF in cortical neurons. Additionally, compound 5 markedly ameliorated the loss of dopaminergic neurons, c-Abl activation, Lewy body pathology, neuroinflammatory responses, and behavioral deficits induced by α-syn PFF injection in vivo. Taken together, these results suggest that compound 5 could be a pharmaceutical agent to prevent the progression of PD and α-synucleinopathies.
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Affiliation(s)
- Seung-Hwan Kwon
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Sangjune Kim
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Biology, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - A Yeong Park
- 1ST Biotherapeutics, Inc., 240 Pangyoyeok-ro A-313, Bundang-gu, Seongnam-si, Gyeonggi-do 13493, Republic of Korea
| | - Saebom Lee
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Changdev Gorakshnath Gadhe
- 1ST Biotherapeutics, Inc., 240 Pangyoyeok-ro A-313, Bundang-gu, Seongnam-si, Gyeonggi-do 13493, Republic of Korea
| | - Bo Am Seo
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Jong-Sung Park
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Suyeon Jo
- 1ST Biotherapeutics, Inc., 240 Pangyoyeok-ro A-313, Bundang-gu, Seongnam-si, Gyeonggi-do 13493, Republic of Korea
| | - Yumin Oh
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Neuraly, Inc., Gaithersburg, Maryland 20878, United States
| | - Sin Ho Kweon
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Shi-Xun Ma
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Wonjoong R Kim
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Misoon Kim
- 1ST Biotherapeutics, Inc., 240 Pangyoyeok-ro A-313, Bundang-gu, Seongnam-si, Gyeonggi-do 13493, Republic of Korea
| | - Hyeongjun Kim
- 1ST Biotherapeutics, Inc., 240 Pangyoyeok-ro A-313, Bundang-gu, Seongnam-si, Gyeonggi-do 13493, Republic of Korea
| | - Jae Eun Kim
- 1ST Biotherapeutics, Inc., 240 Pangyoyeok-ro A-313, Bundang-gu, Seongnam-si, Gyeonggi-do 13493, Republic of Korea
| | - Seulki Lee
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Neuraly, Inc., Gaithersburg, Maryland 20878, United States
| | - Jinhwa Lee
- 1ST Biotherapeutics, Inc., 240 Pangyoyeok-ro A-313, Bundang-gu, Seongnam-si, Gyeonggi-do 13493, Republic of Korea
| | - Han Seok Ko
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
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Oh Y, Munshi N, Kim K. TRANSCRIPTOMIC HETEROGENEITY OF THE POSTNATAL ATRIOVENTRICULAR CONDUCTION SYSTEM AT A SINGLE-CELL RESOLUTION. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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17
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Liu W, Oh Y, Yin W, Kim R, Zhou Y, Zhang X, Mo R, Puviindran V, Sriranjan S, van Eede M, Henkelman M, Bruneau B, Hui C, Kim K. THE COMBINATORIAL ROLE OF IROQUOIS HOMEOBOX GENES 3 AND 4 IN THE COMPACTION OF THE VENTRICULAR MYOCARDIUM. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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18
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Oh Y, Markova A, Noor SJ, Rotemberg V. Standardized clinical photography considerations in patients across skin tones. Br J Dermatol 2021; 186:352-354. [PMID: 34564851 PMCID: PMC9297997 DOI: 10.1111/bjd.20766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/27/2021] [Accepted: 09/24/2021] [Indexed: 12/03/2022]
Affiliation(s)
- Y Oh
- Department of Dermatology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - A Markova
- Department of Dermatology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - S J Noor
- Department of Dermatology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - V Rotemberg
- Department of Dermatology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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19
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Oh Y, Hennessey A, Young L, Yates D, Barrett C. OP0274-PARE EVALUATION OF PATIENT SATISFACTION FOR TELEHEALTH (PHONE AND VIDEO) IN RHEUMATOLOGY OUTPATIENTS DURING COVID-19 PANDEMIC. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.2885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Telehealth via phone (TPhone) or video conference (TVideo) in rheumatology has been a topic of interest for many years. Its use was rapidly expanded due to the international public health emergency of coronavirus disease-19 (COVID-19) outbreak in 2020. Australian Medicare Benefits Schedule (MBS) swiftly enabled temporary MBS telehealth items on 13 March 2020, currently extended until 31 March 20211. In the early phase of the COVID-19 pandemic, Antony et al. conducted a single-centre public survey to assess patient perception of rheumatology telehealth. Their results showed that 98.4% of patients consider telehealth acceptable during the pandemic2. It is unclear, however, whether this positive perception persists after patients experience a telehealth. In addition, a survey data in 2019 suggested more than half of Australian rheumatologists work in private practice3. Therefore, inclusion of private patients will better represent patient perception of telehealth.Objectives:The aim of this study was to evaluate patient satisfaction with telehealth during the COVID-19 pandemic. This would determine its feasibility to be integrated in future rheumatology outpatient model.Methods:A questionnaire containing 30 questions was sent to rheumatology patients who attended telehealth appointments at a level 2 public hospital and a local private clinic between April and May 2020. The questionnaires aimed to obtain information on baseline demographics (sex, age, public or private patient, employment status, visual or auditory impairment), appointment details (TPhone or TVideo, usual arrangement for face-to-face (F2F) appointment, cost effectiveness) and appointment satisfaction using a 5-point Likert scale. Descriptive statistical analysis was conducted.Results:The questionnaire was sent to 1452 patients, of which 494 patients responded (34%). Female predominance (77.1%) and a higher proportion of TPhone (79.1%) was seen in the respondents. A majority of patients were existing patients known to the services (90.9%). More than 70% of responses indicated overall satisfaction in specialist care via telehealth, and 88.7% perceived this suitable during a pandemic. Of all respondents, 21.7% were prescribed new medication, and the majority of these patients were confident in taking the new medication after the telehealth appointment. Future acceptability for TPhone was significantly lower in private patients compared to public patients (p= 0.01). Subgroup analysis revealed that higher telehealth satisfaction was associated with needing to take time off work to attend face-to-face appointment (p= 0.02), perception of cost effectiveness (p<0.001) and TVideo (p=0.03).Conclusion:This is the first study which included both public and private rheumatology patients to evaluate patient satisfaction for telehealth during the COVID-19 pandemic. Overall high level of satisfaction was seen in telehealth most notably associated with its cost effectiveness. A higher percentage of patients who had TVideo compared to TPhone were receptive to future telehealth via TVideo, supportive of the importance of visual cues. This in turn will have significant administrative and technological burdens to coordinate in comparison to a F2F or TPhone review. This qualitative study provides valuable insight of patient perception of telehealth, which has the potential to compliment the traditional rheumatology outpatient model of care following the pandemic.References:[1]COVID-19 Temporary MBS Telehealth Services 2020 [Available from: http://www.mbsonline.gov.au/internet/mbsonline/publishing.nsf/Content/Factsheet-TempBB.[2]Antony A, Connelly K, De Silva T, Eades L, Tillett W, Ayoub S, et al. Perspectives of Patients With Rheumatic Diseases in the Early Phase of COVID-19. Arthritis Care & Research. 2020;72(9):1189-95.[3]Association AR. Workforce Survey Exective Summary 2019 2019 [Available from: https://rheumatology.org.au/members/documents/WorkforceSurveyExecutiveSummary-websiteMay2019.pdf.Acknowledgements:University of QueenslandNursing staff at Redcliffe Hospital and Administration officers at Redcliffe & Northside RheumatologyDisclosure of Interests:None declared
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20
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Lan X, Basu S, Schwietzke S, Bruhwiler LMP, Dlugokencky EJ, Michel SE, Sherwood OA, Tans PP, Thoning K, Etiope G, Zhuang Q, Liu L, Oh Y, Miller JB, Pétron G, Vaughn BH, Crippa M. Improved Constraints on Global Methane Emissions and Sinks Using δ 13C-CH 4. Global Biogeochem Cycles 2021; 35:e2021GB007000. [PMID: 34219915 PMCID: PMC8244052 DOI: 10.1029/2021gb007000] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/14/2021] [Accepted: 05/03/2021] [Indexed: 06/13/2023]
Abstract
We study the drivers behind the global atmospheric methane (CH4) increase observed after 2006. Candidate emission and sink scenarios are constructed based on proposed hypotheses in the literature. These scenarios are simulated in the TM5 tracer transport model for 1984-2016 to produce three-dimensional fields of CH4 and δ 13C-CH4, which are compared with observations to test the competing hypotheses in the literature in one common model framework. We find that the fossil fuel (FF) CH4 emission trend from the Emissions Database for Global Atmospheric Research 4.3.2 inventory does not agree with observed δ 13C-CH4. Increased FF CH4 emissions are unlikely to be the dominant driver for the post-2006 global CH4 increase despite the possibility for a small FF emission increase. We also find that a significant decrease in the abundance of hydroxyl radicals (OH) cannot explain the post-2006 global CH4 increase since it does not track the observed decrease in global mean δ 13C-CH4. Different CH4 sinks have different fractionation factors for δ 13C-CH4, thus we can investigate the uncertainty introduced by the reaction of CH4 with tropospheric chlorine (Cl), a CH4 sink whose abundance, spatial distribution, and temporal changes remain uncertain. Our results show that including or excluding tropospheric Cl as a 13 Tg/year CH4 sink in our model changes the magnitude of estimated fossil emissions by ∼20%. We also found that by using different wetland emissions based on a static versus a dynamic wetland area map, the partitioning between FF and microbial sources differs by 20 Tg/year, ∼12% of estimated fossil emissions.
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Affiliation(s)
- X. Lan
- Cooperative Institute for Research in Environmental SciencesUniversity of Colorado BoulderBoulderCOUSA
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - S. Basu
- Earth System Science Interdisciplinary CenterUniversity of MarylandCollege ParkMDUSA
- Global Modeling and Assimilation OfficeNational Aeronautics and Space Administration Goddard Space Flight CenterGreenbeltMDUSA
| | - S. Schwietzke
- Cooperative Institute for Research in Environmental SciencesUniversity of Colorado BoulderBoulderCOUSA
- Environmental Defense FundBerlinGermany
| | - L. M. P. Bruhwiler
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - E. J. Dlugokencky
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - S. E. Michel
- Institute of Arctic and Alpine ResearchUniversity of Colorado BoulderBoulderCOUSA
| | - O. A. Sherwood
- Institute of Arctic and Alpine ResearchUniversity of Colorado BoulderBoulderCOUSA
- Department of Earth and Environmental SciencesDalhousie UniversityHalifaxNova ScotiaCanada
| | - P. P. Tans
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - K. Thoning
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - G. Etiope
- Istituto Nazionale di Geofisica e VulcanologiaRomeItaly
- Faculty of Environmental Science and EngineeringBabes Bolyai UniversityCluj-NapocaRomania
| | - Q. Zhuang
- Department of Earth, Atmospheric, and Planetary SciencesPurdue UniversityWest LafayetteINUSA
| | - L. Liu
- Department of Earth, Atmospheric, and Planetary SciencesPurdue UniversityWest LafayetteINUSA
| | - Y. Oh
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
- Department of Earth, Atmospheric, and Planetary SciencesPurdue UniversityWest LafayetteINUSA
| | - J. B. Miller
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - G. Pétron
- Cooperative Institute for Research in Environmental SciencesUniversity of Colorado BoulderBoulderCOUSA
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - B. H. Vaughn
- Institute of Arctic and Alpine ResearchUniversity of Colorado BoulderBoulderCOUSA
| | - M. Crippa
- Joint Research CentreEuropean CommissionIspraItaly
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21
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Mehta P, Sellitti J, Weber J, Oh Y, Kose K, Rotemberg V. 460 The role of data augmentation on the performance of automated lesion classification in the presence of imaging artifacts: An evaluation of the 2019 ISIC Challenge. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Park JS, Kam TI, Lee S, Park H, Oh Y, Kwon SH, Song JJ, Kim D, Kim H, Jhaldiyal A, Na DH, Lee KC, Park EJ, Pomper MG, Pletnikova O, Troncoso JC, Ko HS, Dawson VL, Dawson TM, Lee S. Blocking microglial activation of reactive astrocytes is neuroprotective in models of Alzheimer's disease. Acta Neuropathol Commun 2021; 9:78. [PMID: 33902708 PMCID: PMC8074239 DOI: 10.1186/s40478-021-01180-z] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 04/10/2021] [Indexed: 12/26/2022] Open
Abstract
Alzheimer's disease (AD) is the most common cause of age-related dementia. Increasing evidence suggests that neuroinflammation mediated by microglia and astrocytes contributes to disease progression and severity in AD and other neurodegenerative disorders. During AD progression, resident microglia undergo proinflammatory activation, resulting in an increased capacity to convert resting astrocytes to reactive astrocytes. Therefore, microglia are a major therapeutic target for AD and blocking microglia-astrocyte activation could limit neurodegeneration in AD. Here we report that NLY01, an engineered exedin-4, glucagon-like peptide-1 receptor (GLP-1R) agonist, selectively blocks β-amyloid (Aβ)-induced activation of microglia through GLP-1R activation and inhibits the formation of reactive astrocytes as well as preserves neurons in AD models. In two transgenic AD mouse models (5xFAD and 3xTg-AD), repeated subcutaneous administration of NLY01 blocked microglia-mediated reactive astrocyte conversion and preserved neuronal viability, resulting in improved spatial learning and memory. Our study indicates that the GLP-1 pathway plays a critical role in microglia-reactive astrocyte associated neuroinflammation in AD and the effects of NLY01 are primarily mediated through a direct action on Aβ-induced GLP-1R+ microglia, contributing to the inhibition of astrocyte reactivity. These results show that targeting upregulated GLP-1R in microglia is a viable therapy for AD and other neurodegenerative disorders.
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Affiliation(s)
- Jong-Sung Park
- Russell H, Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Center for Nanomedicine at the Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- D&D Pharmatech Inc., Bundang-gu, Seongnam-si, 13494, Republic of Korea
| | - Tae-In Kam
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Saebom Lee
- Russell H, Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Center for Nanomedicine at the Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Neuraly Inc., Gaithersburg, MD, 20878, USA
| | - Hyejin Park
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Yumin Oh
- Russell H, Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Center for Nanomedicine at the Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Neuraly Inc., Gaithersburg, MD, 20878, USA
| | - Seung-Hwan Kwon
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Neuraly Inc., Gaithersburg, MD, 20878, USA
| | - Jae-Jin Song
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Donghoon Kim
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Hyunhee Kim
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Aanishaa Jhaldiyal
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Physiology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Dong Hee Na
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Kang Choon Lee
- D&D Pharmatech Inc., Bundang-gu, Seongnam-si, 13494, Republic of Korea
| | - Eun Ji Park
- D&D Pharmatech Inc., Bundang-gu, Seongnam-si, 13494, Republic of Korea
| | - Martin G Pomper
- Russell H, Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Olga Pletnikova
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Juan C Troncoso
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Physiology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Han Seok Ko
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Valina L Dawson
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Department of Physiology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Ted M Dawson
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
- Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
| | - Seulki Lee
- Russell H, Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
- Center for Nanomedicine at the Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
- D&D Pharmatech Inc., Bundang-gu, Seongnam-si, 13494, Republic of Korea.
- Neuraly Inc., Gaithersburg, MD, 20878, USA.
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Abstract
We investigate implicit vocabulary learning by adults who are exposed to a language in their ambient environment. Most New Zealanders do not speak Māori, yet are exposed to it throughout their lifetime. We show that this exposure leads to a large proto-lexicon - implicit knowledge of the existence of words and sub-word units without any associated meaning. Despite not explicitly knowing many Māori words, non-Māori-speaking New Zealanders are able to access this proto-lexicon to distinguish Māori words from Māori-like nonwords. What's more, they are able to generalize over the proto-lexicon to generate sophisticated phonotactic knowledge, which lets them evaluate the well-formedness of Māori-like nonwords just as well as fluent Māori speakers.
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Affiliation(s)
- Y Oh
- New Zealand Institute of Language, Brain and Behaviour, NZILBB, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand.
- Department of French Language and Literature, Ajou University, Suwon, South Korea.
| | - S Todd
- New Zealand Institute of Language, Brain and Behaviour, NZILBB, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Department of Linguistics, University of California, Santa Barbara, USA
| | - C Beckner
- Department of Applied Linguistics, University of Warwick, Coventry, UK
| | - J Hay
- New Zealand Institute of Language, Brain and Behaviour, NZILBB, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Department of Linguistics, University of Canterbury, Christchurch, New Zealand
| | - J King
- New Zealand Institute of Language, Brain and Behaviour, NZILBB, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Aotahi - School of Māori and Indigenous Studies, University of Canterbury, Christchurch, New Zealand
| | - J Needle
- New Zealand Institute of Language, Brain and Behaviour, NZILBB, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
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24
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Park YJ, An HT, Park JS, Park O, Duh AJ, Kim K, Chung KH, Lee KC, Oh Y, Lee S. Tyrosine kinase inhibitor neratinib attenuates liver fibrosis by targeting activated hepatic stellate cells. Sci Rep 2020; 10:14756. [PMID: 32901093 PMCID: PMC7479613 DOI: 10.1038/s41598-020-71688-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 08/18/2020] [Indexed: 12/19/2022] Open
Abstract
Liver fibrosis, a common outcome of chronic liver disease characterized by excessive accumulation of extracellular matrix (ECM), is a leading cause of mortality worldwide. The tyrosine kinase inhibitor neratinib is a human epidermal growth factor receptor 2 (HER2) inhibitor approved by the FDA for HER2-positive breast cancer treatment; however, it has not yet been evaluated for liver fibrosis treatment. We elucidated the anti-fibrotic effects of neratinib in hepatic stellate cells (HSCs) and in vivo models of CCl4-induced liver fibrosis. HSC activation is a key step in liver fibrogenesis and has a crucial role in collagen deposition, as it is primarily responsible for excessive ECM production. The effect of neratinib on HSC was evaluated in transforming growth factor (TGF-β)-incubated LX-2 cells and culture-activated primary human HSCs. In vivo study results indicated that neratinib inhibited the inflammatory response, HSC differentiation, and collagen accumulation induced by CCl4. Moreover, the anti-fibrotic effects of neratinib were not associated with the HER2 signaling pathways. Neratinib inhibited FGF2 expression in activated HSCs and serum FGF2 level in the model, suggesting that neratinib possessed therapeutic potency against liver fibrosis and the potential for application against other fibrotic diseases.
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Affiliation(s)
- Yong Joo Park
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.,Center for Nanomedicine At the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.,School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Korea
| | - Hyoung-Tae An
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.,Center for Nanomedicine At the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.,Center for Theragnosis, Korea Institute of Science and Technology, Seoul, Korea
| | - Jong-Sung Park
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.,Center for Nanomedicine At the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Ogyi Park
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.,Center for Nanomedicine At the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Alexander J Duh
- Center for Nanomedicine At the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Kwangmeyung Kim
- Center for Theragnosis, Korea Institute of Science and Technology, Seoul, Korea
| | - Kyu Hyuck Chung
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Korea
| | - Kang Choon Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Korea
| | - Yumin Oh
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA. .,Center for Nanomedicine At the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
| | - Seulki Lee
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA. .,Center for Nanomedicine At the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
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25
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Cho H, Lee JC, Park HY, Yang W, Nam HM, Ryu J, Oh Y, Hur M. 1064P Efficacy of a novel anti-CEACAM1 monoclonal antibody and CEACAM1 up-regulation in tumour-infiltrating lymphocytes (TILs) of cancer patients. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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26
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Kim M, Oh Y, Lee D, Casey V, Kim J. PCN81 The Role of Different Specialties in the Management of NON-SMALL CELL LUNG Cancer: Insights from a Real-World Study. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Rao D, Phal A, Naga V, Negron K, Oh Y, Hanes J, Soo Suk J. EXTH-41. A NANOPARTICLE-BASED CANCER-SELECTIVE GENE TRANSFER STRATEGY FOR LOCALIZED THERAPY OF MALIGNANT HIGH GRADE GLIOMAS. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz175.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Treatment for malignant high grade gliomas entails surgery, followed by chemotherapy and/or radiation. Despite the intensive care, there is a ~90% recurrence rate. This is attributed to suboptimal efficacy of treatments in tackling widespread cancer cells. We have previously developed nanoparticles that provide widespread therapeutic distribution both in healthy and tumor tissues, but are incapable of differentiating between them. This limitation applies to the current standard-of-care and state-of-the-art gene therapies. Here, we evaluate the efficacy of DNA nanoparticles carrying promoters that drive transgene expression specifically in tumor cells to achieve widespread yet cancer-selective gene transfer in high grade gliomas. To identify tumor-specific promoters, we used ELISA to confirm elevated expression of proteins previously reported to be upregulated in tumor tissue. We observed that expression of survivin in cancer cells was significantly greater than that of other cancer-rich proteins, exhibiting two orders of magnitude greater levels in rodent and human cancer cells compared to their respective healthy cells. Furthermore, the CMV promoter mediated similarly high expression in healthy cells, whereas the level achieved by the survivin promoter was significantly lower, if not negligible, suggesting its tumor specificity. Likewise, CMV-driven plasmids delivered into the brain by the nanoparticles mediated virtually identical volumetric distribution of transgene expression in both normal and tumor tissues in vivo. In contrast, nanoparticles carrying survivin-driven plasmids provided widespread transgene expression only in an orthotopically established tumor, but not healthy brain tissue. Additionally, we demonstrate therapeutic efficacy in an established brain tumor model using the DNA nanoparticles carrying survivin promoter-driven plasmids expressing a therapeutic protein. We identified survivin promoter as a lead TSP and confirmed its ability to mediate highly efficient and widespread but cancer-selective transgene expression with the aid of our nanoparticles uniquely designed to penetrate in healthy and tumor tissues.
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Affiliation(s)
- Divya Rao
- Johns Hopkins University, Baltimore, MD, USA
| | - Ashish Phal
- Johns Hopkins University, Baltimore, MD, USA
| | - Varun Naga
- Johns Hopkins University, Baltimore, MD, USA
| | | | - Yumin Oh
- Johns Hopkins Medical Institute, Baltimore, MD, USA
| | - Justin Hanes
- Johns Hopkins Medical Institute, Baltimore, MD, USA
| | - Jung Soo Suk
- Johns Hopkins Medical Institute, Baltimore, MD, USA
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Lee H, Oh Y, Jeon YJ, Lee SY, Kim H, Lee HJ, Jung YK. DR4-Ser424 O-GlcNAcylation Promotes Sensitization of TRAIL-Tolerant Persisters and TRAIL-Resistant Cancer Cells to Death. Cancer Res 2019; 79:2839-2852. [PMID: 30987996 DOI: 10.1158/0008-5472.can-18-1991] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 12/18/2018] [Accepted: 04/08/2019] [Indexed: 11/16/2022]
Abstract
TNF-related apoptosis-inducing ligand (TRAIL) resistance, including nongenetically acquired tolerance in cancer persister cells, is a major obstacle to translating TRAIL therapy into patients with cancer. However, the underlying mechanisms remain to be elucidated. Here, we show that DR4/TRAIL-R1 is O-GlcNAcylated at Ser424 in its death domain to mediate both apoptosis and necrosis upon TRAIL ligation. We found that DR4-Ser424 mutations, identified from our cell-based functional screen using a cancer patient-derived cDNA expression library and from The Cancer Genome Atlas, caused TRAIL resistance in various human cancer cell lines. Using O-GlcNAc transferase knockdown cells, DR4-preferred versus DR5-preferred cancer cells, and a DR5-neutralizing antibody, we evaluated the essential role of DR4-specific O-GlcNAc modification in TRAIL cytotoxicity. In contrast to DR4, DR5 was not O-GlcNAcylated by TRAIL treatment, discriminating DR4 from DR5-mediated signaling. Apart from genetic changes in DR4-Ser424, we further classified various cancer cell lines originated from stomach, colon, lung, and glioblastoma according to their sensitivity to and receptor preference upon TRAIL death signaling and generated TRAIL-tolerant persister-derived DLD-1PER cells. Among these, we discovered that DR4 was not modified by O-GlcNAc in most of the TRAIL-resistant cancer cells and DLD-1PER cells. Interestingly, promoting DR4 O-GlcNAcylation intentionally using 2-deoxy-d-glucose or a high concentration of glucose sensitized those resistant cancer cells to TRAIL. The O-GlcNAcylation-defective DR4 failed to form DISC/necrosome and could not translocate to aggregated platforms for receptor clustering. Our findings demonstrate that DR4 O-GlcNAcylation is crucial for TRAIL death signaling, providing new opportunities for TRAIL therapy overcoming TRAIL resistance in cancers. SIGNIFICANCE: This study reports that a novel posttranslational modification by O-GlcNAcylation of one of the two human TRAIL receptors with a death domain, TRAIL-R1 (DR4), plays a crucial role in enabling both apoptotic and necroptotic cell death induction by TRAIL.
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Affiliation(s)
- Hyeonjeong Lee
- School of Biological Science, Seoul National University, Gwanak-gu, Seoul, Republic of Korea
| | - Yumin Oh
- School of Biological Science, Seoul National University, Gwanak-gu, Seoul, Republic of Korea.,The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Young-Jun Jeon
- School of Biological Science, Seoul National University, Gwanak-gu, Seoul, Republic of Korea.,Stanford Cancer Institute, Stanford University, Stanford, California
| | - Song-Yi Lee
- School of Biological Science, Seoul National University, Gwanak-gu, Seoul, Republic of Korea
| | - Hyunjoo Kim
- School of Biological Science, Seoul National University, Gwanak-gu, Seoul, Republic of Korea
| | - Ho-June Lee
- Department of Discovery Oncology, Genentech, Inc., South San Francisco, California
| | - Yong-Keun Jung
- School of Biological Science, Seoul National University, Gwanak-gu, Seoul, Republic of Korea.
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Heo J, Oh Y, Noh O, Chun M, Cho O. PO-0711 Second Primary Cancer in Salivary gland cancer in South Korea: A Nationwide Population-based Study. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31131-4] [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: 11/26/2022]
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30
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Cho O, Oh Y, Chun M, Noh O, Heo J. PV-0042 Radiation related lymphopenia as a predictor of locoregional recurrence in early breast cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30462-1] [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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31
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Park JS, Oh Y, Park YJ, Park O, Yang H, Slania S, Hummers LK, Shah AA, An HT, Jang J, Horton MR, Shin J, Dietz HC, Song E, Na DH, Park EJ, Kim K, Lee KC, Roschke VV, Hanes J, Pomper MG, Lee S. Targeting of dermal myofibroblasts through death receptor 5 arrests fibrosis in mouse models of scleroderma. Nat Commun 2019; 10:1128. [PMID: 30850660 PMCID: PMC6408468 DOI: 10.1038/s41467-019-09101-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 02/21/2019] [Indexed: 02/08/2023] Open
Abstract
Scleroderma is an autoimmune rheumatic disorder accompanied by severe fibrosis in skin and other internal organs. During scleroderma progression, resident fibroblasts undergo activation and convert to α-smooth muscle actin (α-SMA) expressing myofibroblasts (MFBs) with increased capacity to synthesize collagens and fibrogenic components. Accordingly, MFBs are a major therapeutic target for fibrosis in scleroderma and treatment with blocking MFBs could produce anti-fibrotic effects. TLY012 is an engineered human TNF-related apoptosis-inducing ligand (TRAIL) which induces selective apoptosis in transformed cells expressing its cognate death receptors (DRs). Here we report that TLY012 selectively blocks activation of dermal fibroblasts and induces DR-mediated apoptosis in α-SMA+ MFBs through upregulated DR5 during its activation. In vivo, TLY012 reverses established skin fibrosis to near-normal skin architecture in mouse models of scleroderma. Thus, the TRAIL pathway plays a critical role in tissue remodeling and targeting upregulated DR5 in α-SMA+ MFBs is a viable therapy for fibrosis in scleroderma.
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Affiliation(s)
- Jong-Sung Park
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Yumin Oh
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Yong Joo Park
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Ogyi Park
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Theraly Fibrosis Inc., Germantown, 20876, MD, USA
| | - Hoseong Yang
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Stephanie Slania
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Laura K Hummers
- Scleroderma Center, Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, 21224, MD, USA
| | - Ami A Shah
- Scleroderma Center, Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, 21224, MD, USA
| | - Hyoung-Tae An
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Jiyeon Jang
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Maureen R Horton
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Joseph Shin
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Harry C Dietz
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Eric Song
- Department of Immunobiology, Yale University School of Medicine, New Haven, 06520, CT, USA
| | - Dong Hee Na
- College of Pharmacy, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Eun Ji Park
- College of Pharmacy, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Kwangmeyung Kim
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Kang Choon Lee
- School of Pharmacy, SungKyunKwan University, Jangangu, 16419, Suwon, Republic of Korea
| | | | - Justin Hanes
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
| | - Martin G Pomper
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA
- Department of Materials and Science, Johns Hopkins University, Baltimore, 21218, MD, USA
| | - Seulki Lee
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA.
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, 21205, MD, USA.
- Department of Materials and Science, Johns Hopkins University, Baltimore, 21218, MD, USA.
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Heo J, Oh Y, Noh O, Chun M, Kim C, Shin Y. PO-139 Second Primary Cancer in Salivary gland cancer: A Nationwide Population-based Study. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30305-6] [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]
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33
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Huang X, Zhuang J, Chung SW, Huang B, Halpert G, Negron K, Sun X, Yang J, Oh Y, Hwang PM, Hanes J, Suk JS. Hypoxia-tropic Protein Nanocages for Modulation of Tumor- and Chemotherapy-Associated Hypoxia. ACS Nano 2019; 13:236-247. [PMID: 30576113 PMCID: PMC8323471 DOI: 10.1021/acsnano.8b05399] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Despite its central role in tumor progression and treatment resistance, poor vascularization that necessitates penetration of therapeutics through tumor extracellular matrix (ECM) constitutes a significant challenge to managing tumor hypoxia via conventional systemic treatment regimens. In addition, methods to target hypoxic tumor cells are lacking. Here, we discovered that human ferritin nanocages (FTn) possess an intrinsic ability to preferentially engage with hypoxic tumor tissues, in addition to normoxic tumor areas. We also developed a simple method of endowing FTn with spatially controlled "mosaic" surface poly(ethylene glycol) (PEG) coatings that facilitate deep penetration of FTn through ECM to reach hypoxic tumor tissues while retaining its inherent hypoxia-tropic property. Hypoxia-inhibiting agents systemically delivered via this surface-PEGylated FTn were readily accumulated in hypoxic tumor tissues, thereby providing significantly enhanced therapeutic benefits compared to the identical agents delivered in solution as a stand-alone therapy or an adjuvant to restore efficacy of conventional systemic chemotherapy.
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Affiliation(s)
- Xinglu Huang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Jie Zhuang
- Cardiovascular Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Seung Woo Chung
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Buwei Huang
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Gilad Halpert
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Karina Negron
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Pharmacology & Molecular Sciences, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Xuanrong Sun
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jun Yang
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Yumin Oh
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- The Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Paul M. Hwang
- Cardiovascular Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Justin Hanes
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology & Molecular Sciences, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jung Soo Suk
- Center for Nanomedicine, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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34
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Wang B, Tang Y, Oh Y, Lamb NW, Xia S, Ding Z, Chen B, Suarez MJ, Meng T, Kulkarni V, Eberhart CG, Ensign LM, Stark WJ, Hanes J, Xu Q. Controlled release of dexamethasone sodium phosphate with biodegradable nanoparticles for preventing experimental corneal neovascularization. Nanomedicine 2019; 17:119-123. [PMID: 30677499 DOI: 10.1016/j.nano.2019.01.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/23/2018] [Accepted: 01/02/2019] [Indexed: 12/30/2022]
Abstract
Corneal neovascularization (CNV) leads to the loss of corneal transparency and vision impairment, and can ultimately cause blindness. Topical corticosteroids are the first line treatment for suppressing CNV, but poor ocular bioavailability and rapid clearance of eye drops makes frequent administration necessary. Patient compliance with frequent eye drop application regimens is poor. We developed biodegradable nanoparticles (NP) loaded with dexamethasone sodium phosphate (DSP) using zinc ion bridging, DSP-Zn-NP, with dense coatings of poly(ethylene glycol) (PEG). DSP-Zn-NP were safe and capable of providing sustained delivery of DSP to the front of the eye following subconjunctival (SCT) administration in rats. We reported that a single SCT administration of DSP-Zn-NP prevented suture-induced CNV in rats for two weeks. In contrast, the eyes receiving SCT administration of either saline or DSP solution developed extensive CNV in less than 1 week. SCT administration of DSP-Zn-NP could be an effective strategy in preventing and treating CNV.
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Affiliation(s)
- Bing Wang
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, PR China; Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yating Tang
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, PR China
| | - Yumin Oh
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nicholas W Lamb
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shiyu Xia
- Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, USA
| | - Zheng Ding
- Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD, USA
| | - Baiwei Chen
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - María J Suarez
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Pathology, The Johns Hopkins University, Baltimore, MD, USA
| | - Tuo Meng
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA, USA
| | - Vineet Kulkarni
- Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA, USA
| | - Charles G Eberhart
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Pathology, The Johns Hopkins University, Baltimore, MD, USA
| | - Laura M Ensign
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, USA
| | - Walter J Stark
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Justin Hanes
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, USA; Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD, USA; Departments of Oncology, Neurosurgery, and Pharmacology & Molecular Sciences, The Johns Hopkins University, Baltimore, MD, USA
| | - Qingguo Xu
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA, USA; Department of Ophthalmology, and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA.
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Lee S, Oh Y, Nam K, Oh B, Roh M, Chung K. Mohs micrographic surgery for dermatofibrosarcoma protuberans: comparison of frozen and paraffin techniques. J Eur Acad Dermatol Venereol 2018; 32:2171-2177. [DOI: 10.1111/jdv.15201] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/12/2018] [Indexed: 11/28/2022]
Affiliation(s)
- S.H. Lee
- Department of Dermatology; Seoul National University Hospital; Seoul Korea
- Institute of Human Environment Interface Biology; Seoul National University; Seoul Korea
| | - Y. Oh
- Department of Dermatology; Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - K.A. Nam
- Department of Dermatology; Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - B. Oh
- Department of Dermatology; Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - M.R. Roh
- Department of Dermatology; Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - K.Y. Chung
- Department of Dermatology; Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
- Brain Korea 21 Project for Medical Science; Seoul Korea
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Kim SY, Hong M, Heo SH, Park S, Kwon TK, Sung YH, Oh Y, Lee S, Yi GS, Kim I. Inhibition of euchromatin histone-lysine N-methyltransferase 2 sensitizes breast cancer cells to tumor necrosis factor-related apoptosis-inducing ligand through reactive oxygen species-mediated activating transcription factor 4-C/EBP homologous protein-death receptor 5 pathway activation. Mol Carcinog 2018; 57:1492-1506. [PMID: 29964331 DOI: 10.1002/mc.22872] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 03/19/2018] [Revised: 06/05/2018] [Accepted: 06/28/2018] [Indexed: 12/13/2022]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been characterized as an anti-cancer therapeutic agent with prominent cancer cell selectivity over normal cells. However, breast cancer cells are generally resistant to TRAIL, thus limiting its therapeutic potential. In this study, we found that BIX-01294, a selective inhibitor of euchromatin histone methyltransferase 2/G9a, is a strong TRAIL sensitizer in breast cancer cells. The combination of BIX-01294 and TRAIL decreased cell viability and led to an increase in the annexin V/propidium iodide-positive cell population, DNA fragmentation, and caspase activation. BIX-01294 markedly increased death receptor 5 (DR5) expression, while silencing of DR5 using small interfering RNAs abolished the TRAIL-sensitizing effect of BIX-01294. Specifically, BIX-01294 induced C/EBP homologous protein (CHOP)-mediated DR5 gene transcriptional activation and DR5 promoter activation was induced by upregulation of the protein kinase R-like endoplasmic reticulum kinase-mediated activating transcription factor 4 (ATF4). Moreover, inhibition of reactive oxygen species by N-acetyl-L-cysteine efficiently blocked BIX-01294-induced DR5 upregulation by inhibiting ATF4/CHOP expression, leading to diminished sensitization to TRAIL. These findings suggest that BIX-01294 sensitizes breast cancer cells to TRAIL by upregulating ATF4/CHOP-dependent DR5 expression with a reactive oxygen species-dependent manner. Furthermore, combination treatment with BIX-01294 and TRAIL suppressed tumor growth and induced apoptosis in vivo. In conclusion, we found that epigenetic regulation can contribute to the development of resistance to cancer therapeutics such as TRAIL, and further studies of unfolded protein responses and the associated epigenetic regulatory mechanisms may lead to the discovery of new molecular targets for effective cancer therapy.
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Affiliation(s)
- So Young Kim
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea
| | - MiNa Hong
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea
| | - Seung-Ho Heo
- Department of Convergence Medicine, ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea
| | - Sojung Park
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea
| | - Taeg Kyu Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Young Hoon Sung
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yumin Oh
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Seulki Lee
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Gwan-Su Yi
- Department of Bio and Brain Engineering, KAIST, Daejeon, Republic of Korea
| | - Inki Kim
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Lee S, Oh Y, Nam K, Oh B, Roh M, Chung K. 575 Comparative single-institute analysis of slow Mohs micrographic surgery and frozen section Mohs micrographic surgery for dermatofibrosarcoma protuberans. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.583] [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: 11/27/2022]
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38
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Baskaran R, Lee CJ, Kang SM, Oh Y, Jin SE, Lee DH, Yang SG. Poly(lactic-co-glycolic acid) Microspheres Containing a Recombinant Parathyroid Hormone (1-34) for Sustained Release in a Rat Model. Indian J Pharm Sci 2018. [DOI: 10.4172/pharmaceutical-sciences.1000429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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39
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Cho O, Oh Y, Chun M, Noh O, Heo J. P1.15-015 Prognostic Implication of the FEV1/FVC Ratio in Limited-Stage Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1051] [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]
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40
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Park JS, Oh Y, Park O, Foss CA, Lim SM, Jo DG, Na DH, Pomper MG, Lee KC, Lee S. PEGylated TRAIL ameliorates experimental inflammatory arthritis by regulation of Th17 cells and regulatory T cells. J Control Release 2017; 267:163-171. [PMID: 29017854 DOI: 10.1016/j.jconrel.2017.10.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/02/2017] [Accepted: 10/06/2017] [Indexed: 12/24/2022]
Abstract
TNF-related apoptosis-inducing ligand (TRAIL) is a death ligand that can induce apoptosis in cells expressing its cognate death receptors (DRs). Previously, we demonstrated the therapeutic potential of recombinant human TRAIL in experimental rheumatoid arthritis (RA) models. However, the mechanisms of how DR-mediated apoptosis elicits these actions is not known. Here, we show that systemically administering a potent, long-acting PEGylated TRAIL (TRAILPEG) is profoundly anti-rheumatic against two complementary experimental RA mouse models, collagen-induced arthritis (CIA) and collagen antibody-induced arthritis (CAIA), via targeting IL-17 secreting Th17 cells and regulatory T cells (Treg). Systemic administration of TRAILPEG after disease onset ameliorated the severity of inflammatory arthritis including arthritis indices, paw thickness, cartilage damage and neutrophil infiltration in both CIA and CAIA models. Additionally, the levels of inflammatory molecules (p-p65, ICAM-1, Cox-2, MMP3, and iNOS), pro-inflammatory cytokines (TNF-α, IL-1β, IFN-γ, IL-6, IL-17) and accumulation of activated macrophages were significantly reduced after the TRAILPEG treatment. Importantly, TRAILPEG decreased the number of pro-inflammatory Th17 cells in inflamed arthritic joints through TRAIL-induced apoptosis while increasing anti-inflammatory Treg population in vivo. These results suggest that TRAILPEG ameliorates autoimmunity by targeting the Th 17-Tregs axis, making it a promising candidate drug for the treatment of RA.
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Affiliation(s)
- Jong-Sung Park
- Russell H, Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Yumin Oh
- Russell H, Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Ogyi Park
- Russell H, Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Catherine A Foss
- Russell H, Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
| | - Sung Mook Lim
- School of Pharmacy, SungKyunKwan University, Suwon 16419, Republic of Korea
| | - Dong-Gyu Jo
- School of Pharmacy, SungKyunKwan University, Suwon 16419, Republic of Korea
| | - Dong Hee Na
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Martin G Pomper
- Russell H, Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21287, USA
| | - Kang Choon Lee
- School of Pharmacy, SungKyunKwan University, Suwon 16419, Republic of Korea.
| | - Seulki Lee
- Russell H, Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA; Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21287, USA.
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Affiliation(s)
- Y. Kim
- Kyunghee University, Yongin-si, Korea (the Republic of),
| | - H. Lee
- University of Minnesota, Minnesota, Minnesota,
| | - Y. Oh
- Kyunghee University, Yongin-si, Korea (the Republic of),
| | - E. Kang
- Korea Institute for Health and Social Affairs, Sejong- si, Korea (the Republic of)
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Oh Y, Lee S, Lee KC. Abstract 2142: Role of TRAIL signaling through the development of carcinogen-induced colorectal cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-2142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
TNF-related apoptosis-inducing ligand (TRAIL/APO-2L) is a death ligand that can induce apoptosis by its cognate death receptors (DRs). Due to its unique ability to selectively induce DR-mediated apoptosis in cancer cells while showing no apparent toxicity to normal cells, the rhTRAIL has been actively studied for cancer therapy. Clinical studies of TRAIL revealed a broad tolerability in humans but failed to demonstrate a robust therapeutic benefit in oncology. The main factors responsible for the disappointing results of TRAIL used in cancer patients are 1) its short half-life (less than 30 min in humans) and 2) heterogeneous primary cancers are generally TRAIL-resistant. To overcome the short half and low potency of TRAIL in vivo, we have developed an engineered PEGylated TRAIL (TRAILPEG). PEGylation is a gold standard to extend the half-life of protein drugs and a highly efficient commercial strategy. While investigating the improved therapeutic potential of TRAILPEG in colitis-associated cancer (CAC), we validated that TRAILPEG can ameliorate an inflammatory bowel disease (IBD), the high risk for CRC. Therapeutic efficacy of systemically administered long-acting TRAIL was validated in vivo in IBD and CAC animal models showing an anti-inflammatory and anti-cancer effects. Dimethylhydrazine metabolite azoxymethane (AOM) used to induce CAC in A/J mice, while a chronic inflammation model of colitis/IBD was induced with DSS without the AOM. Most of the mice administered with AOM/DSS developed adenocarcinoma on the distal part of the colon, but the number of adenocarcinomas per colon was significantly lower in the TRAILPEG treated mice than in the vehicle-treated groups. The shortening of the colon length, a measurable characteristic of colitis severity was more recovered in mice treated with TRAILPEG compared to disease control. The TRAILPEG treatment significantly decreased the number of large neoplasms in total tumor and led to an over 30~40% reduction in the total tumors. In addition, the symptoms of rectal bleeding in the AOM/DSS mice was rare to detect. The elevated MPO activity was significantly suppressed by TRAILPEG treatment. In parallel, we found that TRAILPEG treatment resulted in the activation of Caspase-8 and decrease of phosph-STAT3 suggesting the dual roles of TRAIL signaling for apoptosis and anti-inflammation by western blotting. The mRNA levels of inflammatory cytokines including of IL-6, IL-17, MCP-1, ICAM-1, and TNF-β were recovered by TRAILPEG in the AOM/DSS model. Our studies demonstrated that TRAILPEG could effectively treat IBD and CAC in AOM/DSS mice model. The mechanisms involved in this effect of TRAILPEG on IBD and CAC were associated with an increase of cell death, as well as, intervention inflammatory responses.
Citation Format: Yumin Oh, Seulki Lee, Kang Choon Lee. Role of TRAIL signaling through the development of carcinogen-induced colorectal cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 2142. doi:10.1158/1538-7445.AM2017-2142
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Affiliation(s)
- Yumin Oh
- 1Johns Hopkins School of Medicine, Baltimore, MD
| | - Seulki Lee
- 1Johns Hopkins School of Medicine, Baltimore, MD
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Aw S, Oh Y, Koh G, Vrijhoef H, Harding S, Hildon Z. MAPPING TYPOLOGIES OF SOCIAL PARTICIPATION TO PROGRAMMING FOR ELDERS IN THE CHANGING ASIAN CONTEXTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S. Aw
- Saw Swee Hock School of Public Health, Singapore, Singapore,
| | - Y. Oh
- Hallym University, ChunCheon, Korea (the Republic of),
| | - G.C. Koh
- Saw Swee Hock School of Public Health, Singapore, Singapore,
| | - H.J. Vrijhoef
- Saw Swee Hock School of Public Health, Singapore, Singapore,
| | | | - Z.J. Hildon
- John Hopkins University, Baltimore, Maryland
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Seo J, Roh MR, Oh Y, Nam KA, Chung KY. Palmar melanoma: a tertiary centre experience. J Eur Acad Dermatol Venereol 2017; 31:e493-e496. [PMID: 28502087 DOI: 10.1111/jdv.14338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- J Seo
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - M R Roh
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Y Oh
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - K A Nam
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - K Y Chung
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Park H, Bae Y, Park J, Kim M, Oh Y, Chun M, Noh O, Cho O, Lee J. EP-1444: Reliable error detection in radiochromic film dosimetry with optimal density curves and corrections. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31879-0] [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: 10/19/2022]
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Lee E, Park N, Oh Y, Yoo S, Lee H, Lee J, Kim Y. 728 3D Multi-photon imaging for evaluating the anti-aging efficacy of Paeonia Albiflora extract on UV-irradiated fibroblasts in a collagen matrix. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.752] [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: 11/24/2022]
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Soiberman U, Kambhampati SP, Wu T, Mishra MK, Oh Y, Sharma R, Wang J, Al Towerki AE, Yiu S, Stark WJ, Kannan RM. Subconjunctival injectable dendrimer-dexamethasone gel for the treatment of corneal inflammation. Biomaterials 2017; 125:38-53. [PMID: 28226245 DOI: 10.1016/j.biomaterials.2017.02.016] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 02/11/2017] [Accepted: 02/12/2017] [Indexed: 11/16/2022]
Abstract
Corneal inflammation is often encountered as a key pathological event in many corneal diseases. Current treatments involve topical corticosteroids which require frequent instillations due to rapid tear turnover, causing side-effects such as corneal toxicity and elevated intraocular pressure (IOP). Hence, new interventions that can reduce side effects, dosing frequency, and increase patient compliance can be highly beneficial. In this study, we explore a subconjunctival injectable gel based on G4-PAMAM dendrimer and hyaluronic acid, cross-linked using thiol-ene click chemistry, incorporated with dendrimer dexamethasone (D-Dex) conjugates as a potential strategy for sustained delivery and enhanced bioavailability of corticosteroids. The efficacy of the injectable gel formulation was evaluated in a rat mild alkali burn model. Fluorescently-labelled dendrimers (D-Cy5) incorporated in the gel release D-Cy5 in vivo. The released D-Cy5 selectively targets and localizes within corneal macrophages in inflamed rat cornea but not in healthy controls. This pathology dependent biodistribution was exploited for drug delivery, by incorporating D-Dex in the injectable gel. The attenuation of corneal inflammation by D-Dex gels was assessed using various clinical and biochemical parameters over a 2-week period. Subconjunctival D-Dex gel treatment resulted in favorable clinically-relevant outcomes with reduced central corneal thickness and improved corneal clarity compared to free-Dex and placebo gel controls. The extent of corneal neovascularization was significantly reduced in the D-Dex group. These findings suggest that D-Dex attenuates corneal inflammation more effectively than free-Dex by attenuating macrophage infiltration and pro-inflammatory cytokines expression. A significant elevation in IOP was not observed in the D-Dex group but was observed in the free-Dex group. This novel injectable D-Dex gel may be a potential drug delivery platform for the treatment of many inflammatory ocular surface disorders such as dry eye, auto-immune keratitis and post-surgical complications where frequent steroid administration is required.
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Affiliation(s)
- Uri Soiberman
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Cornea Division, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Siva P Kambhampati
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tony Wu
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Manoj K Mishra
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yumin Oh
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rishi Sharma
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jiangxia Wang
- Department of Biostatistics, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | | | - Samuel Yiu
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Cornea Division, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Walter J Stark
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Cornea Division, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Rangaramanujam M Kannan
- Center for Nanomedicine, Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Lee HJ, Ha JH, Kim SG, Choi HK, Kim ZH, Han YJ, Kim JI, Oh Y, Fragoso V, Shin K, Hyeon T, Choi HG, Oh KH, Baldwin IT, Park CM. Stem-piped light activates phytochrome B to trigger light responses in Arabidopsis thaliana roots. Sci Signal 2016; 9:ra106. [DOI: 10.1126/scisignal.aaf6530] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Parker J, Oh Y, Moazami Y, Pierce JG, Loziuk PL, Dean RA, Muddiman DC. Examining ubiquitinated peptide enrichment efficiency through an epitope labeled protein. Anal Biochem 2016; 512:114-119. [PMID: 27562526 DOI: 10.1016/j.ab.2016.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 07/02/2016] [Accepted: 08/19/2016] [Indexed: 10/21/2022]
Abstract
Ubiquitination is a dynamic process that is responsible for regulation of cellular responses to stimuli in a number of biological systems. Previous efforts to study this post-translational modification have focused on protein enrichment; however, recent research utilizes the presence of the di-glycine (Gly-Gly) remnants following trypsin digestion to immuno-enrich ubiquitinated peptides. Monoclonal antibodies developed to the cleaved ubiquitin modification epitope, (tert-butoxycarbonyl) glycylglycine (Boc-Gly-Gly-NHS)(1), are used to identify the Gly-Gly signature. Here, we have successfully generated the Boc-Gly-Gly-NHS modification and showed that when conjugated to a lysine containing protein, such as lysozyme, it can be applied as a standard protein to examine ubiquitinated peptide enrichment within a complex background.
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Affiliation(s)
- J Parker
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States; W. M. Keck FTMS Laboratory for Human Health Research, North Carolina State University, Raleigh, NC, United States
| | - Y Oh
- Department of Plant Pathology, North Carolina State University, Raleigh, NC, United States; Center for Integrated Fungal Research, North Carolina State University, Raleigh, NC, United States
| | - Y Moazami
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States
| | - J G Pierce
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States
| | - P L Loziuk
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States; W. M. Keck FTMS Laboratory for Human Health Research, North Carolina State University, Raleigh, NC, United States
| | - R A Dean
- Department of Plant Pathology, North Carolina State University, Raleigh, NC, United States; Center for Integrated Fungal Research, North Carolina State University, Raleigh, NC, United States
| | - D C Muddiman
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States; W. M. Keck FTMS Laboratory for Human Health Research, North Carolina State University, Raleigh, NC, United States.
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Hamada K, Uedo N, Hanaoka N, Ishihara R, Oh Y. Gastrointestinal: Endoscopic mucosal resection for diagnosis of infiltrating gastric cancer: A case report. J Gastroenterol Hepatol 2016; 31:1670. [PMID: 27060249 DOI: 10.1111/jgh.13404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 03/30/2016] [Indexed: 12/09/2022]
Affiliation(s)
- K Hamada
- Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - N Uedo
- Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - N Hanaoka
- Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - R Ishihara
- Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
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