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Jang M, Shin J, Kim YH, Jeong TY, Jo S, Kim SJ, Devaraj V, Kang J, Choi EJ, Lee JE, Oh JW. 3D superstructure based metabolite profiling for glaucoma diagnosis. Biosens Bioelectron 2024; 244:115780. [PMID: 37939415 DOI: 10.1016/j.bios.2023.115780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/05/2023] [Accepted: 10/21/2023] [Indexed: 11/10/2023]
Abstract
Metabolome analysis has gained widespread application in disease diagnosis owing to its ability to provide comprehensive information, including disease phenotypes. In this study, we utilized 3D superstructures fabricated through evaporation-induced microprinting to analyze the metabolome for glaucoma diagnosis. 3D superstructures offer the following advantages: high hotspot density per unit volume of the structure extending from two to three dimensions, excellent signal repeatability due to the reproducibility and defect tolerance of 3D printing, and high thermal stability due to the PVP-enclosed capsule form. Leveraging the superior optical properties of the 3D superstructure, we aimed to classify patients with glaucoma. The signal obtained from the 3D superstructure was employed in a Deep Neural Network (DNN) classification model to accurately classify glaucoma patients. The sensitivity and specificity of the model were determined as 92.05% and 93.51%, respectively. Additionally, the fabrication of 3D superstructures can be performed at any stage, significantly reducing measurement time. Furthermore, their thermal stability allows for the analysis of smaller samples. One notable advantage of 3D superstructures is their versatility in accommodating different target materials. Consequently, they can be utilized for a wide range of metabolic analyses and disease diagnoses.
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Affiliation(s)
- Minsu Jang
- Department of Nano Fusion Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Jonghoon Shin
- Department of Ophthalmology, College of Medicine, Pusan National University Yangsan Hospital, Republic of Korea; Department of Ophthalmology, Research Institute for Convergence of Biomedical Science and Technology, Busan, Republic of Korea
| | - You Hwan Kim
- Department of Nano Fusion Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Tae-Young Jeong
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, Republic of Korea
| | - Soojin Jo
- Department of Nano Fusion Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Sung-Jo Kim
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, Republic of Korea
| | - Vasanthan Devaraj
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, Republic of Korea
| | - Joonhee Kang
- Department of Nano Energy Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Eun-Jung Choi
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, Republic of Korea.
| | - Ji Eun Lee
- Department of Ophthalmology, College of Medicine, Pusan National University Yangsan Hospital, Republic of Korea; Department of Ophthalmology, Research Institute for Convergence of Biomedical Science and Technology, Busan, Republic of Korea.
| | - Jin-Woo Oh
- Department of Nano Fusion Technology, Pusan National University, Busan, 46241, Republic of Korea; Bio-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, Republic of Korea; Department of Nano Energy Engineering, Pusan National University, Busan, 46241, Republic of Korea.
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Lee DH, Heo H, Suh CH, Shim WH, Kim E, Jo S, Chung SJ, Lee CS, Kim HS, Kim SJ. Improved diagnostic performance of susceptibility-weighted imaging with compressed sensing-sensitivity encoding and neuromelanin-sensitive MRI for Parkinson's disease and atypical Parkinsonism. Clin Radiol 2024; 79:e102-e111. [PMID: 37863747 DOI: 10.1016/j.crad.2023.09.019] [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: 02/07/2023] [Revised: 08/08/2023] [Accepted: 09/18/2023] [Indexed: 10/22/2023]
Abstract
AIM To verify the diagnostic performance of the loss of nigrosome-1 on susceptibility-weighted imaging (SWI) with compressed sensing-sensitivity encoding (CS-SENSE) and neuromelanin on neuromelanin-sensitive (NM) magnetic resonance imaging (MRI) for the diagnosis of Parkinson's disease (PD) and atypical Parkinsonism. MATERIALS AND METHODS A total of 195 patients who underwent MRI between October 2019 and February 2020, including SWI, with or without CS-SENSE, and NM-MRI, were reviewed retrospectively. Two neuroradiologists assessed the loss of nigrosome-1 on SWI and neuromelanin on the NM-MRI. The result of N-3-fluoropropyl-2-beta-carbomethoxy-3-beta-(4-iodophenyl) nortropane positron-emission tomography (PET) was set as the reference standard. RESULTS When CS-SENSE was applied for nigrosome-1 imaging on SWI, the non-diagnostic scan rate was lowered significantly from 19.3% (17/88) to 5.6% (6/107; p=0.004). Diagnosis of PD and atypical Parkinsonism based on the loss of nigrosome-1 on SWI and based on NM-MRI showed good diagnostic value (area under the curve [AUC] 0.821, 95% confidence interval [CI] = 0.755-0.875: AUC 0.832, 95% CI = 0.771-0.882, respectively) with a substantial inter-reader agreement (κ = 0.791 and 0.681, respectively). Combined SWI and neuromelanin had a similar discriminatory ability (AUC 0.830, 95% CI = 0.770-0.880). Similarly, the diagnosis of PD was excellent. CONCLUSIONS CS-SENSE may add value to the diagnostic capability of nigrosome-1 on SWI to reduce the nondiagnostic scan rates. Furthermore, loss of nigrosome-1 on SWI or volume loss of neuromelanin on NM-MRI may be helpful for diagnosing PD.
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Affiliation(s)
- D H Lee
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - H Heo
- Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - C H Suh
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
| | - W H Shim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - E Kim
- Philips Healthcare Korea, Seoul, Republic of Korea
| | - S Jo
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - S J Chung
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - C S Lee
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - H S Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - S J Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
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Jo S, Lee SH, Jo HR, Weon S, Jeon C, Park MK, Kim TH, Cho SH. Eosinophil-derived TGFβ1 controls the new bone formation in chronic rhinosinusitis with nasal polyps. Rhinology 2023; 61:338-347. [PMID: 37083114 DOI: 10.4193/rhin22.439] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
BACKGROUND Chronic rhinosinusitis with nasal polyps (CRSwNP) is characterized by chronic eosinophilic inflammation and new bone formation (NBF). These processes may be associated with each other in the pathogenesis and influence the severity and prognosis of the disease. However, it is still unclear how eosinophilic inflammation is involved in the NBF. METHODOLOGY Sinus bone cells were isolated from ethmoid bone tissues of patients with CRSwNP and controls. Transforming growth factor beta 1 (TGFβ1) and alkaline phosphatase (ALP) expression in sinus bone cells was determined using quantitative RT-PCR, immunoblotting, and immunohistochemistry. The co-localization of TGFβ1 with eosinophils was assessed by immunofluorescence staining. Sinus bone cells were co-cultured with eosinophils (Eol-1 cell line), which were differentiated with butyrate, to measure the osteoblast differentiation activity of sinus bone cells. RESULTS TGFβ1 expression was increased in sinus bone tissues and correlated with CT scores in CRSwNP. TGFβ1 was also increased in the submucosa of CRSwNP and co-localized predominantly with eosinophils compared with neutrophils Differentiated Eol-1 cells-derived TGFβ1 increased ALP expression in sinus bone cells. Treatment with a TGFβ inhibitor attenuated TGFβ1-induced ALP expression and staining in sinus bone cells of CRSwNP, leading to loss of bone formation. CONCLUSIONS Eosinophil-derived TGFβ1 was enriched in the submucosa of CRSwNP, which induced ALP expression in sinus bone cells and NBF. Therefore, eosinophil-derived TGFβ1 may mediate aberrant bone remodeling in CRSwNP.
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Affiliation(s)
- S Jo
- Hanyang University Institute for Rheumatology Research (HYIRR), Hanyang University, Seoul, Republic of Korea
| | - S H Lee
- Hanyang University Institute for Rheumatology Research (HYIRR), Hanyang University, Seoul, Republic of Korea
| | - H-R Jo
- Hanyang University Institute for Rheumatology Research (HYIRR), Hanyang University, Seoul, Republic of Korea
| | - S Weon
- Hanyang University Institute for Rheumatology Research (HYIRR), Hanyang University, Seoul, Republic of Korea
| | - C Jeon
- Hanyang University Institute for Rheumatology Research (HYIRR), Hanyang University, Seoul, Republic of Korea
| | - M K Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - T-H Kim
- Hanyang University Institute for Rheumatology Research (HYIRR), Hanyang University, Seoul, Republic of Korea; Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - S H Cho
- Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University College of Medicine, Seoul, Republic of Korea
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Lee SJ, Kim D, Suh CH, Shim WH, Heo H, Jo S, Chung SJ, Kim HS, Kim SJ. Detection rate of MR myelography without intrathecal gadolinium in patients with newly diagnosed spontaneous intracranial hypotension. Clin Radiol 2022; 77:848-854. [PMID: 35985843 DOI: 10.1016/j.crad.2022.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 06/16/2022] [Accepted: 06/28/2022] [Indexed: 11/26/2022]
Abstract
AIM To evaluate the detection rate of magnetic resonance (MR) myelography without intrathecal gadolinium for cerebrospinal fluid (CSF) leakage in patients with newly diagnosed spontaneous intracranial hypotension (SIH) and to validate a published scoring system for predicting CSF leakage. MATERIALS AND METHODS This retrospective, observational, single-institution study included patients with newly diagnosed SIH between March 2015 and April 2021. Patients were included if they (a) had newly diagnosed SIH and (b) underwent initial brain MR imaging and preprocedural MR myelography with two- and three-dimensional turbo spin-echo sequences. Patients who underwent spine surgery or procedures including epidural injection and acupuncture were excluded. The detection rate was defined as the proportion of patients with a true-positive MR myelography result among all patients with confirmed CSF leakage. The interobserver agreement for the MR myelography results between two radiologists was analysed using weighted kappa statistics. RESULTS A total of 136 patients (mean age, 48 years; 70 women) with suspected SIH were included. Of these patients, 120 (88%, 120/136) were confirmed to have CSF leakage. Of the patients with confirmed CSF leakage, 90 (75%, 90/120) had epidural fluid collection. The detection rate of MR myelography for CSF leakage was 88% (105/120). The interobserver agreement between the two readers for detecting CSF leakage (κ = 0.76) or epidural fluid collection (κ = 0.76) on MR myelography was high. Among 24 patients with normal brain MR imaging results, 16 had CSF leakage (67%, 16/24). CONCLUSIONS Non-invasive MR myelography without intrathecal gadolinium should be considered to detect CSF leakage in patients with suspected SIH.
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Affiliation(s)
- S J Lee
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - D Kim
- University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - C H Suh
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - W H Shim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H Heo
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S Jo
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S J Chung
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H S Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S J Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Kim H, Im I, Jeon J, Lee HA, Kang EH, Jo S, Kim JW, Kim S, Park HJ. LP-36 Generation of Human pluripotent stem cell-derived hepatic organoids for drug metabolism and toxicity prediction. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.776] [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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Jo S, Lee S, Park S, Tandon A, Nguyen TBN, Vu THN, Raza MT, Park SH. Multi-Domains in a Single Lattice Formed by DNA Self-Assembly. ACS Omega 2022; 7:26514-26522. [PMID: 35936484 PMCID: PMC9352336 DOI: 10.1021/acsomega.2c02556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Using sequence programmability and the characteristics of self-assembly, DNA has been utilized in the construction of various nanostructures and the placement of specific patterns on lattices. Even though many complex structures and patterns formed by DNA assembly have been reported, the fabrication of multi-domain patterns in a single lattice has rarely been discussed. Multi-domains possessing specifically designed patterns in a single lattice provide the possibility to generate multiple patterns that enhance the pattern density in a given single lattice. Here, we introduce boundaries to construct double- and quadruple-domains with specific patterns in a single lattice and verify them with atomic force microscopy. ON, OFF, and ST (stripe) patterns on a lattice are made of DNA tiles with hairpins (ON), without hairpins (OFF), and alternating DNA tiles without and with hairpins (formed as a stripe, ST). For double- and quadruple-domain lattices, linear and cross boundaries were designed to fabricate two (e.g., ON and OFF, ON and ST, and OFF and ST) and four (OFF, ST, OFF, and ON) different types of patterns in single lattices, respectively. In double-domain lattices, each linear boundary is placed between two different domains. Similarly, four linear boundaries connected with a seed tile (i.e., a cross boundary) can separate four domains in a single lattice in quadruple-domain lattices. Due to the presence of boundaries, the pattern growth directions are different in each domain. The experimentally obtained multi-domain patterns agree well with our design. Lastly, we propose the possibility of the construction of a hexadomain lattice through the mapping from hexagonal to square grids converted by using an axial coordinate system. By proposing a hexadomain lattice design, we anticipate the possibility to extend to higher numbers of multi-domains in a single lattice, thereby further increasing the information density in a given lattice.
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Affiliation(s)
- Soojin Jo
- Department
of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic
of Korea
- Institute
of Basic Science, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sungjin Lee
- Department
of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic
of Korea
- Institute
of Basic Science, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Suyoun Park
- Department
of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic
of Korea
- Institute
of Basic Science, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Anshula Tandon
- Department
of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic
of Korea
- Institute
of Basic Science, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Thi Bich Ngoc Nguyen
- Department
of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic
of Korea
| | - Thi Hong Nhung Vu
- Department
of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic
of Korea
| | - Muhammad Tayyab Raza
- Department
of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic
of Korea
| | - Sung Ha Park
- Department
of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic
of Korea
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Park M, Jang S, Chung J, Kim K, Kwon O, Jo S. 702 Inhibition of class I HDACs preserves hair follicle inductivity in postnatal dermal cells. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.714] [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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Nam B, Bang SY, Park Y, Jo S, Shin JH, Lee S, Joo KB, Kim TH. POS0030 CLINICAL AND GENETIC FACTORS ASSOCIATED WITH RADIOGRAPHIC PROGRESSION IN PATIENTS WITH ANKYLOSING SPONDYLITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundAnkylosing spondylitis (AS) is a heritable inflammatory disease eventually leading to spinal fusion 1. Severity of structural damage is highly variable, some patients develop almost no change in spinal structure for long disease duration, whereas others have total ankylosis even in the early stage of disease.ObjectivesTo identify clinical and genetic factors associated with severe radiographic damage in patients with AS.MethodsWe newly generated genome-wide variant data (833K, KoreanChip) of 444 AS patients. The severity of radiographic damage was assessed using the modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS). To identify clinical and genetic factors associated with severe radiographic damage, multiple linear regression analyses were performed. Human AS osteoprogenitor cells were used for functional validation. Pathway analysis was also conducted.ResultsA total 444 AS patients (male 90.3%) were enrolled. The median mSASSS at baseline was 7.7 (5.5-16.8). The patients were observed for 9.6 (7.9-11.3) years. Within this period, the median mSASSS score increased to 14.0 (7.0-36.8). The most influential clinical factor of final mSASSS was baseline mSASSS (β = 0.818, p < 0.001). Peripheral joint involvement was associated with decreased possibility of severe radiographic damage (β = -0.221, p < 0.001). Eye involvement, longer follow up duration, and increased age at enrollment were associated with increased final mSASSS (β = 0.165, p < 0.001; β = 0.039, p < 0.001; β = 0.010, p = 0.002, respectively). Ryanodine receptor 3 (RYR3) gene was associated with severe radiographic damage (β = 1.105, p = 1.97x10-06). Treatment with Rhodamine B, a ligand of RYR3, induced extracellular matrix mineralization of AS osteoprogenitors in vitro. For the pathway analysis, PI3K-Akt signaling pathway and focal adhesion pathway were associated with severe radiographic damage in AS.ConclusionThis study identified clinical and genetic factors that contributed to better understanding of the pathogenesis and biology associated with radiographic damage in AS.References[1]Li Z, Brown MA. Progress of genome-wide association studies of ankylosing spondylitis. Clinical & Translational Immunology. 2017;6(12):e163.Disclosure of InterestsNone declared
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Mariyappan K, Tandon A, Park S, Kokkiligadda S, Lee J, Jo S, Komarala EP, Yoo S, Chopade P, Choi HJ, Lee CW, Jeon S, Jeong JH, Park SH. Nanomaterial-Embedded DNA Films on 2D Frames. ACS Appl Bio Mater 2022; 5:2812-2818. [PMID: 35543024 DOI: 10.1021/acsabm.2c00227] [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] [Indexed: 11/29/2022]
Abstract
Recently, 3D printing has provided opportunities for designing complex structures with ease. These printed structures can serve as molds for complex materials such as DNA and cetyltrimethylammonium chloride (CTMA)-modified DNA that have easily tunable functionalities via the embedding of various nanomaterials such as ions, nanoparticles, fluorophores, and proteins. Herein, we develop a simple and efficient method for constructing DNA flat and curved films containing water-soluble/thermochromatic dyes and di/trivalent ions and CTMA-modified DNA films embedded with organic light-emitting molecules (OLEM) with the aid of 2D/3D frames made by a 3D printer. We study the Raman spectra, current, and resistance of Cu2+-doped and Tb3+-doped DNA films and the photoluminescence of OLEM-embedded CTMA-modified DNA films to better understand the optoelectric characteristics of the samples. Compared to pristine DNA, ion-doped DNA films show noticeable variation of Raman peak intensities, which might be due to the interaction between the ion and phosphate backbone of DNA and the intercalation of ions in DNA base pairs. As expected, ion-doped DNA films show an increase of current with an increase in bias voltage. Because of the presence of metallic ions, DNA films with embedded ions showed relatively larger current than pristine DNA. The photoluminescent emission peaks of CTMA-modified DNA films with OLEMRed, OLEMGreen, and OLEMBlue were obtained at the wavelengths of 610, 515, and 469 nm, respectively. Finally, CIE color coordinates produced from CTMA-modified DNA films with different OLEM color types were plotted in color space. It may be feasible to produce multilayered DNA films as well. If so, multilayered DNA films embedded with different color dyes, ions, fluorescent materials, nanoparticles, proteins, and drug molecules could be used to realize multifunctional physical devices such as energy harvesting and chemo-bio sensors in the near future.
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Affiliation(s)
- Karthikeyan Mariyappan
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Anshula Tandon
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Suyoun Park
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Samanth Kokkiligadda
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Jayeon Lee
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Soojin Jo
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Eswaravara Prasadarao Komarala
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Sanghyun Yoo
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Prathamesh Chopade
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
| | - Hee Jin Choi
- Institute of Advanced Optics and Photonics, Department of Applied Optics, Hanbat National University, Daejeon 34158, Korea
| | - Chang-Won Lee
- Institute of Advanced Optics and Photonics, Department of Applied Optics, Hanbat National University, Daejeon 34158, Korea
| | - Sohee Jeon
- Nanomechanical Systems Research Division, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Korea
| | - Jun-Ho Jeong
- Nanomechanical Systems Research Division, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Korea.,Department of Nanomechatronics, Korea University of Science and Technology (UST), Daejeon 34113, Korea
| | - Sung Ha Park
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea
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Choi H, Choi K, Kim DH, Oh BK, Yim H, Jo S, Choi C. Strategies for Targeted Delivery of Exosomes to the Brain: Advantages and Challenges. Pharmaceutics 2022; 14:pharmaceutics14030672. [PMID: 35336049 PMCID: PMC8948948 DOI: 10.3390/pharmaceutics14030672] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [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: 12/25/2021] [Revised: 03/10/2022] [Accepted: 03/16/2022] [Indexed: 02/08/2023] Open
Abstract
Delivering therapeutics to the central nervous system (CNS) is difficult because of the blood–brain barrier (BBB). Therapeutic delivery across the tight junctions of the BBB can be achieved through various endogenous transportation mechanisms. Receptor-mediated transcytosis (RMT) is one of the most widely investigated and used methods. Drugs can hijack RMT by expressing specific ligands that bind to receptors mediating transcytosis, such as the transferrin receptor (TfR), low-density lipoprotein receptor (LDLR), and insulin receptor (INSR). Cell-penetrating peptides and viral components originating from neurotropic viruses can also be utilized for the efficient BBB crossing of therapeutics. Exosomes, or small extracellular vesicles, have gained attention as natural nanoparticles for treating CNS diseases, owing to their potential for natural BBB crossing and broad surface engineering capability. RMT-mediated transport of exosomes expressing ligands such as LDLR-targeting apolipoprotein B has shown promising results. Although surface-modified exosomes possessing brain targetability have shown enhanced CNS delivery in preclinical studies, the successful development of clinically approved exosome therapeutics for CNS diseases requires the establishment of quantitative and qualitative methods for monitoring exosomal delivery to the brain parenchyma in vivo as well as elucidation of the mechanisms underlying the BBB crossing of surface-modified exosomes.
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Affiliation(s)
- Hojun Choi
- ILIAS Biologics Inc., Daejeon 34014, Korea; (H.C.); (K.C.); (D.-H.K.); (B.-K.O.); (H.Y.); (S.J.)
| | - Kyungsun Choi
- ILIAS Biologics Inc., Daejeon 34014, Korea; (H.C.); (K.C.); (D.-H.K.); (B.-K.O.); (H.Y.); (S.J.)
| | - Dae-Hwan Kim
- ILIAS Biologics Inc., Daejeon 34014, Korea; (H.C.); (K.C.); (D.-H.K.); (B.-K.O.); (H.Y.); (S.J.)
| | - Byung-Koo Oh
- ILIAS Biologics Inc., Daejeon 34014, Korea; (H.C.); (K.C.); (D.-H.K.); (B.-K.O.); (H.Y.); (S.J.)
| | - Hwayoung Yim
- ILIAS Biologics Inc., Daejeon 34014, Korea; (H.C.); (K.C.); (D.-H.K.); (B.-K.O.); (H.Y.); (S.J.)
| | - Soojin Jo
- ILIAS Biologics Inc., Daejeon 34014, Korea; (H.C.); (K.C.); (D.-H.K.); (B.-K.O.); (H.Y.); (S.J.)
| | - Chulhee Choi
- ILIAS Biologics Inc., Daejeon 34014, Korea; (H.C.); (K.C.); (D.-H.K.); (B.-K.O.); (H.Y.); (S.J.)
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Correspondence: ; Tel.: +82-42-863-4450
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Jo S, Lee JS, Nam B, Lee YL, Kim H, Lee EY, Park YS, Kim TH. SOX9 + enthesis cells are associated with spinal ankylosis in ankylosing spondylitis. Osteoarthritis Cartilage 2022; 30:280-290. [PMID: 34826571 DOI: 10.1016/j.joca.2021.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 11/09/2021] [Accepted: 11/17/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Although cartilage degeneration and invasion of the subchondral bone plate in entheseal lesion has been considered to consequently lead bony ankylosis in ankylosing spondylitis (AS), no evident mechanisms are known. DESIGN To identify histopathological and physiological changes in enthesitis-related ankylosis in AS, we performed molecular characterization of transcription factors and surface markers, and transcriptome analysis with human tissues. Entheseal tissue containing subchondral bone was obtained from the facet joints of 9 patients with AS and 10 disease controls, and assessed by using differential staining techniques. Enthesis cells were isolated, characterized, stimulated with TNF and/or IL-17A, and analysed by cell-based experimental tools. RESULTS We found diffusely distributed granular tissue and cartilage in the subchondral bone in AS. Co-expression of SOX9, a specific transcription factor in cartilage, and matrix metalloproteinase 13 (MMP13) was found in the granular tissues within the subchondral bone from AS patients. Intriguingly, SOX9 expression was significantly higher in AS enthesis cells than controls and correlated with TNFR1 and IL-17RA expressions, which is important for high reactivity to TNF and IL-17A cytokines. Co-stimulation by TNF and IL-17A resulted in accelerated mineralization/calcification features, and increased OCN expression in AS enthesis cells. Furthermore, SOX9 overexpression in enthesis leads to promoting mineralization feature by TNF and IL-17A stimuli. Finally, OCN expression is elevated in the destructive enthesis of advanced AS. CONCLUSION These findings provide insight into the links between inflammation and the mineralization of entheseal tissue as the initiation of spinal ankylosis, emphasizing the importance of SOX9+ enthesis cells.
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Affiliation(s)
- S Jo
- Hanyang University Institute for Rheumatology Research, Hanyang University Hospital for Rheumatic Diseases, Seoul 04763, Republic of Korea
| | - J S Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea; GENOME INSIGHT Inc., Daejeon 34141, Republic of Korea
| | - B Nam
- Hanyang University Institute for Rheumatology Research, Hanyang University Hospital for Rheumatic Diseases, Seoul 04763, Republic of Korea
| | - Y L Lee
- Hanyang University Institute for Rheumatology Research, Hanyang University Hospital for Rheumatic Diseases, Seoul 04763, Republic of Korea
| | - H Kim
- Department of Pathology, Hanyang University Seoul Hospital, Seoul 04763, Republic of Korea
| | - E Y Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Y-S Park
- Department of Orthopedic Surgery, Guri Hospital, Hanyang University College of Medicine, Guri 11923, Republic of Korea
| | - T-H Kim
- Hanyang University Institute for Rheumatology Research, Hanyang University Hospital for Rheumatic Diseases, Seoul 04763, Republic of Korea; Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul 04763, Republic of Korea.
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Mariyappan K, Park S, Nanda SS, Kokkiligadda S, Jo S, Lee J, Tandon A, Yi DK, Park SH. Fibres and films made from DNA and CTMA-modified DNA embedded with gold nanorods and organic light-emitting materials. Colloids Surf B Biointerfaces 2021; 211:112291. [PMID: 34954515 DOI: 10.1016/j.colsurfb.2021.112291] [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: 09/30/2021] [Revised: 12/05/2021] [Accepted: 12/14/2021] [Indexed: 10/19/2022]
Abstract
The scaffolding of deoxyribonucleic acid (DNA) makes DNA molecules effective templates for hosting various types of nanomaterials. Recently, electrospun fibres formed by a variety of polymers have begun to see use in a number of applications, such as filtration in energy applications, insulation in thermodynamics and protein scaffolding in biomedicine. In this study, we constructed electrospun fibres and thin films made of DNA and cetyltrimethylammonium chloride (CTMA)-modified DNA (CDNA) embedded with dyes, organic light-emitting materials (OLEMs), and gold nanorods (GNRs). These materials provide significant advantages, including selectivity of dimensionality, solubility in organic and inorganic solvents, and functionality enhancement. In addition, coaxial fibres made of CDNA were constructed to demonstrate the feasibility of constructing relatively complex fibres with an electrospinner. To determine the basic physical characteristics of the fibres and thin films containing GNRs and OLEMs, we conducted current measurements, photoluminescence (PL) measurements, X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible (UV-Vis) spectroscopy. The currents in DNA and CDNA were found to exhibit Ohmic behaviour, while the PL emission could be controlled by OLEMs. In addition, the XPS provided the chemical configuration of samples, and the UV-Vis spectra revealed the plasmon resonance of GNR. Due to their simple fabrication and enhanced functionality, these DNA and CDNA fibres and thin films could be used in various devices (e.g., filters or blocking layers) and sensors (e.g., gas detectors and bio sensors) in a number of industries.
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Affiliation(s)
- Karthikeyan Mariyappan
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Institute of Basic Science and Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - Suyoun Park
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Institute of Basic Science and Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | | | - Samanth Kokkiligadda
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Institute of Basic Science and Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - Soojin Jo
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Institute of Basic Science and Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - Jayeon Lee
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Institute of Basic Science and Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - Anshula Tandon
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Institute of Basic Science and Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - Dong Kee Yi
- Department of Chemistry, Myongji University, Yongin 17058, Korea.
| | - Sung Ha Park
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Institute of Basic Science and Department of Physics, Sungkyunkwan University, Suwon 16419, Korea.
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Raza MT, Tandon A, Park S, Lee S, Nguyen TBN, Vu THN, Jo S, Nam Y, Jeon S, Jeong JH, Park SH. Demonstration of elementary functions via DNA algorithmic self-assembly. Nanoscale 2021; 13:19376-19384. [PMID: 34812465 DOI: 10.1039/d1nr05055a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Target-oriented cellular automata with computation are the primary challenge in the field of DNA algorithmic self-assembly in connection with specific rules. We investigate the feasibility of using the principle of cellular automata for mathematical subjects by using specific logic gates that can be implemented into DNA building blocks. Here, we connect the following five representative elementary functions: (i) enumeration of multiples of 2, 3, and 4 (demonstrated via R094, R062, and R190 in 3-input/1-output logic rules); (ii) the remainder of 0 and 1 (R132); (iii) powers of 2 (R129); (iv) ceiling function for n/2 and n/4 (R152 and R144); and (v) analogous pattern of annihilation (R184) to DNA algorithmic patterns formed by specific rules. After designing the abstract building blocks and simulating the generation of algorithmic lattices, we conducted an experiment as follows: designing of DNA tiles with specific sticky ends, construction of DNA lattices via a two-step annealing method, and verification of expected algorithmic patterns on a given DNA lattice using an atomic force microscope (AFM). We observed representative patterns, such as horizontal and diagonal stripes and embedded triangles, on the given algorithmic lattices. The average error rates of individual rules are in the range of 8.8% (R184) to 11.9% (R062), and the average error rate for all the rules was 10.6%. Interpretation of elementary functions demonstrated through DNA algorithmic patterns could be extended to more complicated functions, which may lead to new insights for achieving the final answers of functions with experimentally obtained patterns.
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Affiliation(s)
- Muhammad Tayyab Raza
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
| | - Anshula Tandon
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
| | - Suyoun Park
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
| | - Sungjin Lee
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
| | - Thi Bich Ngoc Nguyen
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
| | - Thi Hong Nhung Vu
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
| | - Soojin Jo
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
| | - Yeonju Nam
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
| | - Sohee Jeon
- Nanomechanical Systems Research Division, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Korea.
| | - Jun-Ho Jeong
- Nanomechanical Systems Research Division, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Korea.
- Department of Nanomechatronics, Korea University of Science and Technology (UST), Daejeon 34113, Korea
| | - Sung Ha Park
- Department of Physics, Institute of Basic Science, and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea.
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Lee BH, Park SW, Jo S, Kim MK. Protein conformational transitions explored by a morphing approach based on normal mode analysis in internal coordinates. PLoS One 2021; 16:e0258818. [PMID: 34735476 PMCID: PMC8568156 DOI: 10.1371/journal.pone.0258818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 10/05/2021] [Indexed: 11/19/2022] Open
Abstract
Large-scale conformational changes are essential for proteins to function properly. Given that these transition events rarely occur, however, it is challenging to comprehend their underlying mechanisms through experimental and theoretical approaches. In this study, we propose a new computational methodology called internal coordinate normal mode-guided elastic network interpolation (ICONGENI) to predict conformational transition pathways in proteins. Its basic approach is to sample intermediate conformations by interpolating the interatomic distance between two end-point conformations with the degrees of freedom constrained by the low-frequency dynamics afforded by normal mode analysis in internal coordinates. For validation of ICONGENI, it is applied to proteins that undergo open-closed transitions, and the simulation results (i.e., simulated transition pathways) are compared with those of another technique, to demonstrate that ICONGENI can explore highly reliable pathways in terms of thermal and chemical stability. Furthermore, we generate an ensemble of transition pathways through ICONGENI and investigate the possibility of using this method to reveal the transition mechanisms even when there are unknown metastable states on rough energy landscapes.
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Affiliation(s)
- Byung Ho Lee
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, South Korea
| | - Soon Woo Park
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, South Korea
| | - Soojin Jo
- Department of Physics and Institute of Basic Science, Sungkyunkwan University, Suwon, South Korea
| | - Moon Ki Kim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, South Korea
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, South Korea
- * E-mail:
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Shin DY, Yi DY, Jo S, Lee YM, Kim JH, Kim W, Park MR, Yoon SM, Kim Y, Yang S, Lim IS. Effect of a new Lactobacillus plantarum product, LRCC5310, on clinical symptoms and virus reduction in children with rotaviral enteritis. Medicine (Baltimore) 2020; 99:e22192. [PMID: 32957348 PMCID: PMC7505315 DOI: 10.1097/md.0000000000022192] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Rotavirus is one of the most common causes of infantile enteritis. In common enterocolitis, probiotic organisms, including Lactobacilli, are effective in treating diarrhea. A new species, Lactobacillus plantarum (LRCC5310), which was shown to inhibit the adherence and proliferation of rotavirus in the small intestine through animal experiments, was investigated for the efficacy and safety of patients with rotaviral enteritis. METHODS LRCC5310 (Group I) and control (Group II) groups consisting of children who were hospitalized for rotaviral enteritis were compared, and the medical records of patients (Group III) who were hospitalized for rotaviral enteritis during the same study period were retrospectively analyzed. Clinical symptoms were compared and stool samples were collected to compare changes in virus multiplication between Groups I and II. RESULTS Groups I, II, and III comprised 15, 8, and 27 children, respectively. There were no differences in clinical information among the groups at admission. In Group I, a statistically significant improvement was noted in the number of patients with diarrhea, number of defecation events on Day 3, and total diarrhea period as opposed to Group II (P = .033, P = .003, and P = .012, respectively). The improvement of Vesikari score in Group I was greater than that in the other groups (P = .076, P = .061, and P = .036, respectively). Among rotavirus genotypes, 9 (22.5%) strains and 8 (20.0%) strains belonged to the G9P8 and G1P8 genotypes, respectively. The virus reduction effect, as confirmed via stool specimens, was also greater in Group I. No significant side effects were noted in infants. CONCLUSION LRCC5310 improved clinical symptoms, including diarrhea and Vesikari score, and inhibited viral proliferation in rotaviral gastroenteritis.
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Affiliation(s)
- Do Young Shin
- Department of Pediatrics, Chung-Ang University Hospital
| | - Dae Yong Yi
- Department of Pediatrics, Chung-Ang University Hospital
- College of Medicine, Chung-Ang University, Seoul
| | - Soojin Jo
- Department of Pediatrics, Chung-Ang University Hospital
| | - Yoo Min Lee
- Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Bucheon
| | - Jong-Hwa Kim
- Department of Microbiology, Chung-Ang University College of Medicine
| | - Wonyong Kim
- Department of Microbiology, Chung-Ang University College of Medicine
| | - Mi ri Park
- Lotte R&D Center, Seoul, Republic of Korea
| | | | - Yunsik Kim
- Lotte R&D Center, Seoul, Republic of Korea
| | | | - In Seok Lim
- Department of Pediatrics, Chung-Ang University Hospital
- College of Medicine, Chung-Ang University, Seoul
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Jin SH, Park PR, Kim MJ, Lee YJ, Jo S, Kim TH, Kim JY, Shim SC, Won EJ, Kim T. SAT0353 STAT3 PHOSPHORYLATION IS INVOLVED IN THE DEVELOPMENTS OF INFLAMMATORY ARTHRITIS, ENTHESITIS, AND NEW BONE FORMATION IN ANKYLOSING SPONDYLITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Ankylosing Spondylitis (AS) is a chronic inflammatory rheumatic disease, which is characterized by the enthesitis, peripheral arthritis, and chronic inflammation of the spine, leading to bony ankylosis. Signal transducer and activator of transcription (STAT) family proteins are latent cytoplasmic transcription factors that convey signals to the nucleus. It is activated by IL-6, IL-23, and IL-22 through JAK-mediated phosphorylation. Moreover, genetic studies implicate interleukin-23 (IL-23) receptor signal, including STAT3 in the development of AS. IL-17A has recently emerged as a potential target that regulates the extensive inflammation and abnormal bone formation observed in AS. It was reported that STAT3 is a regulatory factor that induces Th17 cell development from naive CD4 T cells.Objectives:The aim of this study is to investigate whether the STAT3 phosphorylation (stat3-p) inhibitor has a therapeutic effect on inflammation and new bone formation in AS.Methods:Eight weeks after curdlan injection, SKG mice were treated with stat3-p inhibitor or mock as a control. Clinical and histologic scores for arthritis and enthesitis were evaluated. Synovial fluid mononuclear cells (SFMC) samples were obtained from AS patients. Inflammatory cytokine producing cells were analyzed using flow cytometry. Bone tissue samples were obtained from the facet joints of patients with AS at surgery. Primary bone-derived cells (BdCs) were isolated and cultured. The osteogenic differentiation was assessed in vitro for 3 weeks using ALP activity, Alizarin red S (ARS), Type I collagen, von kossa,and hydroxyapatitestains. Statistical analysis was performed using Prism 5.0 Software. A p < 0.05 was considered statistically significant.Results:The stat3-p inhibitor significantly suppressed peripheral arthritis and enthesitis in SKG mice (figure 1). Inflammatory infiltration around the tendon–bone insertion site and along the tendon, as well as bony involvement were all reduced in stat3-p inhibitor-treated mice compared to control mice. We found that the levels of IFN-±, IL-17, TNF-± were higher in AS Synovial fluid. A significantly decreased frequencies of IFN-±, IL-17, TNF-± producing cells in AS SFMC were shown after stat3-p inhibitor treatment (P < 0.01).In vitro experiment of bone formation, the stat3-p inhibitor suppressed ALP activity. In addition, there were significant decrease in Alizarin red S (ARS), Type I collagen, von kossa staining scores due to stat3-p inhibitor at a concentration of 5 μM.Light intensity of hydroxyapatitestaining was also decreased by stat3-p inhibitor in a dose dependent manner (figure 2). Intriguingly, the stat3-p inhibitor suppressed osteogenesis in both early phase and late phase in AS-BdCs, down-regulating osteoblast-involved genes.Conclusion:The stat3-p inhibitor had beneficial effects on reducing inflammation and new bone formation in AS animal model. In addition, stat3-p inhibitor suppressed bone formation in vitro experiment. These findings suggest that the stat3-p inhibitor could be a potential therapeutic agent for AS.References:[1]Arthritis Res Ther 2018;20:115.[2]Nat Med 2012;18:1069-76.[3]Rheumatology (Oxford) 2017;56:488-493.[4]Nat Rev Immunol. 2011;11:239–50.[5]J Exp Med 2005;201:949–60.Acknowledgments:NoneDisclosure of Interests:None declared
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Abstract
Background:Irisin, exercise-mediated myokine, is one of the most recently discovered hormones. Irisin has been shown to play multifunctional roles including anti-inflammation by suppressing secretion of NF kß, TNF-α, IL-6, and other pro-inflammatory cytokines from macrophages and adipocytes [1]. Thus, several attempts have been made to investigate irisin in chronic inflammatory rheumatic diseases. And recent evidences show that serum irisin concentration is lower in patients with osteoarthritis, rheumatoid arthritis, and behcet disease than health individuals [2-4]. Furthermore, one study showed that serum irisin level was negatively correlated with radiographic severity of knee osteoarhtiritis [2]. However, no previous study has investigated irisin in patients with ankylosing spondylitis (AS).Objectives:To assess the serum level of irisin, and evaluate the possible relationship of irisin with disease activity in patients with AS.Methods:Male patients with AS fulfilled the modified New York criteria (n=119), and healthy male controls (n=30) were enrolled. Serum irisin level was measured by ELISA (Cusabio, CSB-EQ027943HU). Disease activity was assessed by acute phase reactants, Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Functional Index (BASFI), and modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS). Clinical characteristics and serum irisin level of the AS group were compared with those of the control group using Student t-test for normally distributed continuous measures and Mann-Whitney U test for non-normally distributed continuous measures. To evaluate the correlations of serum Irisin level and AS disease activity, Spearman’s correlation test was used. AS patients were grouped into the high BASDAI group (BASDAI ≥ 4, n=45) and the Low BASDAI group (BASDAI < 4, n=74). And serum irisin level was also compared between two groups.Results:AS group had lower serum irisin concentration compared with healthy control group (60.50 [23.68-131.15] vs. 124.69 [79.58-192.90], p=0.013), while age and body mass index were not significantly different between groups. There was no significant correlation between irisin level and disease activities. However, High BASDAI group showed significantly lower irisin level than low BASDAI group (44.64 [18.13-85.89] vs. 65.68 [31.81-165.31], p=0.011).Conclusion:AS patients have lower serum irisin concentrations than healthy controls. AS patients with severe symptoms tend to have lower serum level of irisin than those with less severe symptoms.References:[1]H. Askari, et al. A glance at the therapeutic potential of irisin against diseases involving inflammation, oxidative stress, and apoptosis: an introductory review. Pharmacol Res. 2018[2]Mao Y, et al. Association of Irisin and CRP Levels with the Radiographic Severity of Knee Osteoarthritis. Genet Test Mol Biomarkers. 2016[3]Rania M. Gamal, et al. Preliminary study of the association of serum irisin levels with poor sleep quality in rheumatoid arthritis patients. Sleep Med. 2020[4]A. Icli, et al. Novel myokine: irisin may be an independent predictor for subclinic atherosclerosis in Behcet’s disease. J. Investig. Med. 2016Disclosure of Interests:None declared
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Jo S, Lim IS, Chae SA, Yun SW, Lee NM, Kim SY, Yi DY. Characteristics of intussusception among children in Korea: a nationwide epidemiological study. BMC Pediatr 2019; 19:211. [PMID: 31253125 PMCID: PMC6598253 DOI: 10.1186/s12887-019-1592-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 06/19/2019] [Indexed: 12/05/2022] Open
Abstract
Background Intussusception is a gastrointestinal condition in which early treatment is critical. Although its epidemiology and comorbidities have been studied, few studies have included the entire pediatric population of a country. Therefore, we aimed to analyze the epidemiologic features of pediatric intussusception patients and identify comorbidities associated with intussusception in South Korea, using the public health database. Methods We analyzed the data of children below 18 years of age, from the national database of South Korea, who were diagnosed with intussusception and managed such as air reduction or surgical methods from 2008 to 2016. Patients were categorized into six groups based on the comorbid diseases. Patients with structural lesion in gastrointestinal tract were divided diagnosis or diagnosis code. Results The number of patients diagnosed with intussusception were 25,023 (16,024 males, 64.0%). Of them, the highest percentage was patients aged between 2 and 36 months (20,703; 82.7%). The incidence per 100,000 individuals aged up to 2 years was 196.7. The number of males were 16,024 (64.0%) and were almost twice the number of 8999 (36.0%) female patients. The maximum number of cases (n = 2517; 10.1%) were seen in September, followed by July (n = 2469; 9.9%). In February, the number of cases was lowest at 1448 (5.8%) patients (P < 0.001). The number of patients with structural lesions of the gastrointestinal tract that could lead to intussusception was 1207 (4.8%), while patients with acute gastrointestinal infectious disease were 4541 (18.1%). Among the structural lesions of the gastrointestinal tract that could be the leading cause of intussusception, lymphadenopathy was the most common, seen in 462 (56.6%) patients and an appendix-related condition was seen in 260 (31.9%) patients. Infectious diseases were more common in the younger children, while systemic diseases were more common in the older. Conclusion We confirmed that pediatric intussusception in South Korea shows a seasonal tendency, which is age-dependent and is associated with an exposure to infectious agents. Some infectious pathogens and underlying diseases might play an important role in the pathophysiology of intussusception.
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Affiliation(s)
- Soojin Jo
- Department of Pediatrics, Chung-Ang University Hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - In Seok Lim
- Department of Pediatrics, Chung-Ang University Hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea.,College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Soo Ahn Chae
- Department of Pediatrics, Chung-Ang University Hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea.,College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Sin Weon Yun
- Department of Pediatrics, Chung-Ang University Hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea.,College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Na Mi Lee
- Department of Pediatrics, Chung-Ang University Hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea.,College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Su Yeong Kim
- Department of Pediatrics, Chung-Ang University Hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - Dae Yong Yi
- Department of Pediatrics, Chung-Ang University Hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea. .,College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
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Ho Lee B, Jo S, Kim H, Ha Park S, Kim BD, Ki Kim M. A New DNA Inversion Mechanism: Recombination of the DNA Foldback Intercoil Structure. Biophys J 2019. [DOI: 10.1016/j.bpj.2018.11.451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Lee S, Choi E, Heo J, Kim S, Lee S, Jo S, Won Y. GROUP VOLUNTEERING AS SERIOUS LEISURE AND SUCCESSFUL AGING. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.436] [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: 11/12/2022] Open
Affiliation(s)
| | - E Choi
- Colorado State University
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Jo S, Kim J, Kim D. Heart rate and heart rate variability change while falling asleep during driving a car. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.773] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Park M, Jeong J, Park G, Jo S. 1131 Long term millimeter wave irradiation could break stem cell niche of induced pluripotent stem cells. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1145] [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: 10/17/2022]
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Ho Lee B, Jo S, Kim BD, Ha Park S, Ki Kim M. Computational Analysis of DNA Homologous Recombination Pathway in a Foldback Intercoil Structure. Biophys J 2018. [DOI: 10.1016/j.bpj.2017.11.504] [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] Open
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Kim H, Choi MK, Lee B, Jo S, Kim D, Ki Kim M. Optimal Design of an Aquaporin Lipid Membrane System using Molecular Dynamics Simulation. Biophys J 2018. [DOI: 10.1016/j.bpj.2017.11.3333] [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: 10/18/2022] Open
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Lee BH, Seo S, Kim MH, Kim Y, Jo S, Choi MK, Lee H, Choi JB, Kim MK. Normal mode-guided transition pathway generation in proteins. PLoS One 2017; 12:e0185658. [PMID: 29020017 PMCID: PMC5636086 DOI: 10.1371/journal.pone.0185658] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 09/15/2017] [Indexed: 11/18/2022] Open
Abstract
The biological function of proteins is closely related to its structural motion. For instance, structurally misfolded proteins do not function properly. Although we are able to experimentally obtain structural information on proteins, it is still challenging to capture their dynamics, such as transition processes. Therefore, we need a simulation method to predict the transition pathways of a protein in order to understand and study large functional deformations. Here, we present a new simulation method called normal mode-guided elastic network interpolation (NGENI) that performs normal modes analysis iteratively to predict transition pathways of proteins. To be more specific, NGENI obtains displacement vectors that determine intermediate structures by interpolating the distance between two end-point conformations, similar to a morphing method called elastic network interpolation. However, the displacement vector is regarded as a linear combination of the normal mode vectors of each intermediate structure, in order to enhance the physical sense of the proposed pathways. As a result, we can generate more reasonable transition pathways geometrically and thermodynamically. By using not only all normal modes, but also in part using only the lowest normal modes, NGENI can still generate reasonable pathways for large deformations in proteins. This study shows that global protein transitions are dominated by collective motion, which means that a few lowest normal modes play an important role in this process. NGENI has considerable merit in terms of computational cost because it is possible to generate transition pathways by partial degrees of freedom, while conventional methods are not capable of this.
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Affiliation(s)
- Byung Ho Lee
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Sangjae Seo
- Department of Materials Chemistry, Nagoya University, Nagoya, Japan
| | - Min Hyeok Kim
- School of Computational Sciences, Korea Institute for Advanced Study, Seoul, Republic of Korea
| | - Youngjin Kim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Soojin Jo
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Moon-ki Choi
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Hoomin Lee
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jae Boong Choi
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Republic of Korea
| | - Moon Ki Kim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Republic of Korea
- * E-mail:
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Choi MK, Jo S, Lee BH, Kim MH, Choi JB, Kim K, Kim MK. Dynamic characteristics of a flagellar motor protein analyzed using an elastic network model. J Mol Graph Model 2017; 78:81-87. [PMID: 29054097 DOI: 10.1016/j.jmgm.2017.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/02/2017] [Accepted: 10/03/2017] [Indexed: 12/23/2022]
Abstract
At the base of a flagellar motor, its rotational direction and speed are regulated by the interaction between rotor and stator proteins. A switching event occurs when the cytoplasmic rotor protein, called C-ring, changes its conformation in response to binding of the CheY signal protein. The C-ring structure consists of FliG, FliM, and FliN proteins and its conformational changes in FliM and FliG including HelixMC play an important role in switching the motor direction. Therefore, clarifying their dynamic properties as well as conformational changes is a key to understanding the switching mechanism of the motor protein. In this study, to elucidate dynamic characteristics of the C-ring structure, both harmonic (intrinsic vibration) and anharmonic (transition pathway) analyses are conducted by using the symmetry-constrained elastic network model. As a result, the first three normal modes successfully capture the essence of transition pathway from wild type to CW-biased state. Their cumulative square overlap value reaches up to 0.842. Remarkably, it is also noted from the transition pathway that the cascade of interactions from the signal protein to FliM to FliG, highlighted by the major mode shapes from the first three normal modes, induces the reorientation (∼100° rotation of FliGC5) of FliG C-terminal that directly interacts with the stator protein. Presumably, the rotational direction of the motor protein is switched by this substantial change in the stator-rotor interaction.
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Affiliation(s)
- Moon-Ki Choi
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Korea
| | - Soojin Jo
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Korea
| | - Byung Ho Lee
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Korea
| | - Min Hyeok Kim
- Korea Institute for Advanced Study, Seoul, 02455, Korea
| | - Jae Boong Choi
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Korea
| | - Kyunghoon Kim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Korea
| | - Moon Ki Kim
- School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Korea.
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Yoon J, Kim S, Ock S, Jo S, Jeong T, Lee J, Jin Y. 351 Hematologic Findings of Venom-Induced Consumption Coagulopathy following Korean Viper (Gloydius Species) Bite. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.321] [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: 10/18/2022]
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Jo S, Lee JH, Mattei JJ, Barrett DM, van den Elzen P, Grupp SA, Reid GSD, Seif AE. Generation of a multi-antigen-directed immune response for durable control of acute lymphoblastic leukemia. Leukemia 2017; 32:539-542. [PMID: 28924244 DOI: 10.1038/leu.2017.290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- S Jo
- Michael Cuccione Childhood Cancer Research Program, BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - J H Lee
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, The Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
| | - J J Mattei
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, The Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
| | - D M Barrett
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, The Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
| | - P van den Elzen
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - S A Grupp
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, The Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
| | - G S D Reid
- Michael Cuccione Childhood Cancer Research Program, BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - A E Seif
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pediatrics, The Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA, USA
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PArk J, Jo S, Bae J. THE SUSTAINABILITY OF SENIORS’ EXERCISE BEHAVIOR THROUGH FAMILY SUPPORT. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4419] [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: 11/14/2022] Open
Affiliation(s)
- J. PArk
- Yonsei University, Seoul, Korea (the Republic of)
| | - S. Jo
- Yonsei University, Seoul, Korea (the Republic of)
| | - J. Bae
- Yonsei University, Seoul, Korea (the Republic of)
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Werthel JD, Lonjon G, Jo S, Cofield R, Sperling JW, Elhassan BT. Long-term outcomes of cemented versus cementless humeral components in arthroplasty of the shoulder. Bone Joint J 2017; 99-B:666-673. [DOI: 10.1302/0301-620x.99b5.bjj-2016-0910.r1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 01/18/2017] [Indexed: 11/05/2022]
Abstract
Aims In the initial development of total shoulder arthroplasty (TSA), the humeral component was usually fixed with cement. Cementless components were subsequently introduced. The aim of this study was to compare the long-term outcome of cemented and cementless humeral components in arthroplasty of the shoulder. Patients and Methods All patients who underwent primary arthroplasty of the shoulder at our institution between 1970 and 2012 were included in the study. There were 4636 patients with 1167 cemented humeral components and 3469 cementless components. Patients with the two types of fixation were matched for nine different covariates using a propensity score analysis. A total of 551 well-balanced pairs of patients with cemented and cementless components were available after matching for comparison of the outcomes. The clinical outcomes which were analysed included loosening of the humeral component determined at revision surgery, periprosthetic fractures, post-operative infection and operating time. Results The overall five-, ten-, 15- and 20-year rates of survival were 98.9%, 97.2%, 95.5%, and 94.4%, respectively. Survival without loosening at 20 years was 98% for cemented components and 92.4% for cementless components. After propensity score matching including fixation as determined by the design of the component, humeral loosening was also found to be significantly higher in the cementless group. Survival without humeral loosening at 20 years was 98.7% for cemented components and 91.0% for cementless components. There was no significant difference in the risk of intra- or post-operative fracture. The rate of survival without deep infection and the mean operating time were significantly higher in the cemented group. Conclusion Both types of fixation give rates of long-term survival of > 90%. Cemented components have better rates of survival without loosening but this should be weighed against increased operating time and the risk of bony destruction of the proximal humerus at the time of revision of a cemented humeral component. Cite this article: Bone Joint J 2017;99-B:666–73.
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Affiliation(s)
- J-D. Werthel
- Mayo Clinic, 200
First Street S.W, Rochester, Minnesota, USA
| | - G. Lonjon
- Hôpital Européen Georges Pompidou, 20
rue Leblanc, 75015 Paris, France
| | - S. Jo
- Mayo Clinic, 200
First Street S.W, Rochester, Minnesota, USA
| | - R. Cofield
- Mayo Clinic, 200
First Street S.W, Rochester, Minnesota, USA
| | - J. W. Sperling
- Mayo Clinic, 200
First Street S.W, Rochester, Minnesota, USA
| | - B. T. Elhassan
- Mayo Clinic, 200
First Street S.W, Rochester, Minnesota, USA
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Kim S, Kang S, Chun M, Oh Y, Noh O, Jang H, Jo S. PO-0692: The role of adjuvant chemoradiotherapy in patients with common bile duct cancer after R1 resection. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31129-5] [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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32
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Jo S, Son J, Lee BH, Dugasani SR, Park SH, Kim MK. Vibrational characteristics of DNA nanostructures obtained through a mass-weighted chemical elastic network model. RSC Adv 2017. [DOI: 10.1039/c7ra06125k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The proposed frequency analysis method is a feasible method for understanding DNA nanostructure's vibration characteristics, including both frequencies and mode shapes in atomic detail, adding to the molecular fingerprint provided by the conventional Raman spectrum.
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Affiliation(s)
- Soojin Jo
- School of Mechanical Engineering
- Sungkyunkwan University
- Suwon
- Korea
| | - Junyoung Son
- Department of Physics
- Sungkyunkwan University
- Suwon
- Korea
| | - Byung Ho Lee
- School of Mechanical Engineering
- Sungkyunkwan University
- Suwon
- Korea
| | | | - Sung Ha Park
- Department of Physics
- Sungkyunkwan University
- Suwon
- Korea
| | - Moon Ki Kim
- School of Mechanical Engineering
- Sungkyunkwan University
- Suwon
- Korea
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Jo S, Yan Y, Son J, Hong S, Lee J. The Effect of Fast Time Manipulation on Memory with Emotional Stimuli. Personality and Individual Differences 2016. [DOI: 10.1016/j.paid.2016.05.172] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Fidanza M, Seif AE, DeMicco A, Rolf N, Jo S, Yin B, Li Y, Barrett DM, Duque-Afonso J, Cleary ML, Bassing CH, Grupp SA, Reid GSD. Inhibition of precursor B-cell malignancy progression by toll-like receptor ligand-induced immune responses. Leukemia 2016; 30:2116-2119. [PMID: 27220664 PMCID: PMC5053846 DOI: 10.1038/leu.2016.152] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- M Fidanza
- Michael Cuccione Childhood Cancer Research Program, Child and Family Research Institute, Vancouver, British Columbia, Canada
| | - A E Seif
- Center for Childhood Cancer Research, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Division of Oncology, University of Pennsylvania, Philadelphia, PA, USA
- Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - A DeMicco
- Center for Childhood Cancer Research, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Division of Cancer Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - N Rolf
- Michael Cuccione Childhood Cancer Research Program, Child and Family Research Institute, Vancouver, British Columbia, Canada
- Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - S Jo
- Michael Cuccione Childhood Cancer Research Program, Child and Family Research Institute, Vancouver, British Columbia, Canada
| | - B Yin
- Center for Childhood Cancer Research, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Division of Cancer Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Y Li
- Center for Childhood Cancer Research, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Division of Oncology, University of Pennsylvania, Philadelphia, PA, USA
- Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, USA
| | - D M Barrett
- Center for Childhood Cancer Research, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Division of Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - J Duque-Afonso
- Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA
| | - M L Cleary
- Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA
| | - C H Bassing
- Center for Childhood Cancer Research, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Division of Cancer Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - S A Grupp
- Center for Childhood Cancer Research, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Division of Oncology, University of Pennsylvania, Philadelphia, PA, USA
- Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA, USA
| | - G S D Reid
- Michael Cuccione Childhood Cancer Research Program, Child and Family Research Institute, Vancouver, British Columbia, Canada
- Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
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Jo S, Koo B, Koo B, Sung IH, Sung IH, Park YS, Park YS, Choi CB, Choi CB, Kim TH, Kim TH. OP0270 Targeting IL-23 Can Attenuate Progression of Spinal Ankylosis in Ankylosing Spondylitis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kim J, Yoon J, Kang B, Park H, Wi H, Jung K, Jo S, Kim K, Kwon O. 686 UVB irradiation with anti-CD154 antibody prolonged the survival of hair follicle allografts in humanized mice. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.728] [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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Jo S, Kim H, Park W, Kim S, Han S, Park K. Osteoprotegerin gene polymorphism is not associated with angiographic coronary artery stenosis and calcification in Korean. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.302] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Jo SJ, Shin H, Jo S, Kwon O, Myung SK. Prophylactic and therapeutic efficacy of pyridoxine supplements in the management of hand-foot syndrome during chemotherapy: a meta-analysis. Clin Exp Dermatol 2014; 40:260-70. [DOI: 10.1111/ced.12538] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2014] [Indexed: 12/15/2022]
Affiliation(s)
- S. J. Jo
- Department of Dermatology; Seoul National University Hospital; Seoul Korea
| | - H. Shin
- Department of Dermatology; Dongguk University Ilsan Hospital; Goyang Korea
| | - S. Jo
- Department of Dermatology; Seoul National University Hospital; Seoul Korea
| | - O. Kwon
- Department of Dermatology; Seoul National University Hospital; Seoul Korea
| | - S.-K. Myung
- Family Medicine Clinic; Center for Cancer Prevention and Detection; Cancer Information and Education Branch; National Cancer Control Institute and Hospital; National Cancer Center; Goyang Korea
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Brenneis C, Kistner K, Puopolo M, Jo S, Roberson D, Sisignano M, Segal D, Cobos EJ, Wainger BJ, Labocha S, Ferreirós N, von Hehn C, Tran J, Geisslinger G, Reeh PW, Bean BP, Woolf CJ. Bupivacaine-induced cellular entry of QX-314 and its contribution to differential nerve block. Br J Pharmacol 2014; 171:438-51. [PMID: 24117225 DOI: 10.1111/bph.12466] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [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: 04/15/2013] [Revised: 09/22/2013] [Accepted: 09/26/2013] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE Selective nociceptor fibre block is achieved by introducing the cell membrane impermeant sodium channel blocker lidocaine N-ethyl bromide (QX-314) through transient receptor potential V1 (TRPV1) channels into nociceptors. We screened local anaesthetics for their capacity to activate TRP channels, and characterized the nerve block obtained by combination with QX-314. EXPERIMENTAL APPROACH We investigated TRP channel activation in dorsal root ganglion (DRG) neurons by calcium imaging and patch-clamp recordings, and cellular QX-314 uptake by MS. To characterize nerve block, compound action potential (CAP) recordings from isolated nerves and behavioural responses were analysed. KEY RESULTS Of the 12 compounds tested, bupivacaine was the most potent activator of ruthenium red-sensitive calcium entry in DRG neurons and activated heterologously expressed TRPA1 channels. QX-314 permeated through TRPA1 channels and accumulated intracellularly after activation of these channels. Upon sciatic injections, QX-314 markedly prolonged bupivacaine's nociceptive block and also extended (to a lesser degree) its motor block. Bupivacaine's blockade of C-, but not A-fibre, CAPs in sciatic nerves was extended by co-application of QX-314. Surprisingly, however, this action was the same in wild-type, TRPA1-knockout and TRPV1/TRPA1-double knockout mice, suggesting a TRP-channel independent entry pathway. Consistent with this, high doses of bupivacaine promoted a non-selective, cellular uptake of QX-314. CONCLUSIONS AND IMPLICATIONS Bupivacaine, combined with QX-314, produced a long-lasting sensory nerve block. This did not require QX-314 permeation through TRPA1, although bupivacaine activated these channels. Regardless of entry pathway, the greatly extended duration of block produced by QX-314 and bupivacaine may be clinically useful.
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Affiliation(s)
- C Brenneis
- F. M. Kirby Neurobiology Center, Children's Hospital Boston, Boston, MA, USA
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Kim B, Jo S, Son J, Kim J, Kim MH, Hwang SU, Dugasani SR, Kim BD, Liu WK, Kim MK, Park SH. Ternary and senary representations using DNA double-crossover tiles. Nanotechnology 2014; 25:105601. [PMID: 24532021 DOI: 10.1088/0957-4484/25/10/105601] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The information capacity of DNA double-crossover (DX) tiles was successfully increased beyond a binary representation to higher base representations. By controlling the length and the position of DNA hairpins on the DX tile, ternary and senary (base-3 and base-6) digit representations were realized and verified by atomic force microscopy. Also, normal mode analysis was carried out to study the mechanical characteristics of each structure.
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Affiliation(s)
- Byeonghoon Kim
- Department of Physics and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Korea
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Jeong UH, Garripelli V, Jo S, Myung CS, Hwang SJ, Kim JK, Park JS. Potential of pH-Sensitive Polymer-Anchored Cationic Liposomes for Combinatorial Anticancer Therapy with Doxorubicin and siRNA. J Drug Deliv Sci Technol 2014. [DOI: 10.1016/s1773-2247(14)50004-4] [Citation(s) in RCA: 5] [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: 10/24/2022]
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Jang H, Baek G, Jo S. EP-1344: Anal canal as a risk organ in conventional field of whole pelvic radiotherapy. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31462-6] [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: 10/23/2022]
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Oh J, Choi J, Suh J, Liu H, Hwang K, Chung I, Lee S, Kang J, Park H, Jung W, Jo S, Gweon H, Lee Y, Lee W, Kim J, Han S, Hong G, Lee J, Lee B, Yeo C, Kim H, Seo E, Reynaud P, Goff J, Tan H, Tao J. Preliminary design of the ITER AC/DC converters supplied by the Korean Domestic Agency. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2013.01.099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kim TH, Jo S, Park Y, Lee HH, Chung SH, Lee WS. Differences in omega-3 and fatty acid profiles between patients with endometriosis and those with a functional ovarian cyst. J OBSTET GYNAECOL 2013; 33:597-600. [PMID: 23919858 DOI: 10.3109/01443615.2013.786029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Endometriosis is a chronic inflammatory gynaecological disease. Problems associated with endometriosis include dysmenorrhoea, dyspareunia and infertility. We evaluated the omega-3 and fatty acid profiles in erythrocytes and tissues in patients with endometriosis (n = 10) or a functional ovarian cyst (n = 12), using a food frequency questionnaire that included questions about 117 food items typical of Korean meals. Erythrocyte levels of 20:5n3 and 22:6n3, the omega-3 index, and n-3 PUFA were significantly higher, and the n-6:n-3 ratio was significantly lower in the endometriosis group than in the functional ovarian cyst group. The functional ovarian cyst group consumed significantly more fruit than the group with endometriosis.
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Affiliation(s)
- T H Kim
- Department of Obstetrics and Gynecology, College of Medicine, Soonchunhyang University, Bucheon
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Jo S, Hyeok Kim M, Son J, Ha Park S, Ki Kim M. Precise Normal Mode Analysis and Frequency Prediction of DNA Nanostructure through Mass-Weighted Chemical Elastic Network Model. Biophys J 2013. [DOI: 10.1016/j.bpj.2012.11.2786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Jo S, Seo S, Hyeok Kim M, Soo Lim B, Ki Kim M. Normal Mode Comparison Elucidates Dynein Walking Mechanism Triggered by ATP Hydrolysis. Biophys J 2012. [DOI: 10.1016/j.bpj.2011.11.2440] [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] Open
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Park KM, Jo S, Chong SC, Joo EY, Lee MJ, Hong SC, Hong SB. Interaction between electrical stimulation of face-selective area and perception of face stimuli. J Vis 2010. [DOI: 10.1167/9.8.457] [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] Open
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Garripelli V, Kim JK, Namgung R, Kim W, Repka M, Jo S. A novel thermosensitive polymer with pH-dependent degradation for drug delivery. Acta Biomater 2010; 6:477-85. [PMID: 19596093 DOI: 10.1016/j.actbio.2009.07.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 06/10/2009] [Accepted: 07/07/2009] [Indexed: 10/20/2022]
Abstract
A class of thermosensitive biodegradable multiblock copolymers with acid-labile acetal linkages were synthesized from Pluronic triblock copolymers (Pluronic P85 and P104) and di-(ethylene glycol) divinyl ether. The novel polymers were engineered to form thermogels at body temperature and degrade in an acidic environment. The Pluronic-based acid-labile polymers were characterized using nuclear magnetic resonance, gel permeation chromatography and differential scanning calorimetry. In vitro biocompatibility of the synthesized polymers was evaluated using calorimetric 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay. The polymers showed reverse thermogelling behavior in water around body temperature. The sol-gel transition temperatures of the polymers synthesized from Pluronic P85 and P104 were lowered from 70.3 to 30 degrees C and from 68.5 to 26.9 degrees C, respectively, when the synthesized polymers were compared with corresponding Pluronic block copolymers at a concentration of 25wt.%. The hydrophobic dye solubilization confirmed the formation of polymeric micelles in the aqueous solution. The sizes of the multiblock copolymers increased on a rise in temperature, indicating that thermal gelation was mediated by micellar aggregation. The thermally driven hydrogels showed preferential polymer degradation at acidic pH. At pH 5.0 and 6.5, the release of 40kDa fluorescein isothiocyanate-dextran (FITC-dextran) from the thermally formed hydrogels was completed within 2 and 9 days, respectively. However, FITC-dextran was continuously released up to 30 days at neutral pH. The mechanism of FITC-dextran release at pH 5.0 was mainly an acid-catalyzed degradation, whereas both diffusion and pH-dependent degradation resulted in FITC-dextran release at pH 6.5. The novel polymers hold great potential as a pH-sensitive controlled drug delivery system owing to their interesting phase transition behavior and biocompatibility.
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Kim T, Kim S, Sung B, Kim H, Kim D, Jo S, Rhew H, Yoon J. UP-2.140: The Efficacy of Androgen Deprivation Therapy in Clinically Localized Prostate Cancer. Urology 2009. [DOI: 10.1016/j.urology.2009.07.359] [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]
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Jo S, Chun M, Jang H, Kim M, O Y, Kang S, Choi K. 2055 Difference of set up margin between conventional 2-D and CT based 3-D planning in Korean patients with early breast cancer. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)70571-3] [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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