1
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Kim KT, Lee JE, Cheong J, Cho I, Choi YY. Deciphering metastatic route-specific signals and their microenvironment interactions in peritoneal metastasis of gastric cancer. Cancer Commun (Lond) 2024; 44:514-517. [PMID: 38498378 PMCID: PMC11024677 DOI: 10.1002/cac2.12533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 02/26/2024] [Accepted: 03/06/2024] [Indexed: 03/20/2024] Open
Affiliation(s)
- Ki Tae Kim
- Department of Molecular Genetics & Dental PharmacologySchool of DentistrySeoul National UniversitySeoulRepublic of Korea
- Dental Research Institute and Dental Multi‐omics CenterSeoul National UniversitySeoulRepublic of Korea
| | - Jae Eun Lee
- Portrai Inc.SeoulRepublic of Korea
- Department of SurgeryYonsei University Health SystemYonsei University College of MedicineSeoulRepublic of Korea
| | - Jae‐Ho Cheong
- Department of SurgeryYonsei University Health SystemYonsei University College of MedicineSeoulRepublic of Korea
| | - In Cho
- Department of SurgerySoonchunhyang Bucheon HospitalSoonchunhyang University College of MedicineBucheonRepublic of Korea
| | - Yoon Young Choi
- Department of SurgerySoonchunhyang Bucheon HospitalSoonchunhyang University College of MedicineBucheonRepublic of Korea
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2
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Lee HR, Kim SR, Cho MH, Kim DE, Jang SY, Lee JE, Jeong HR, Kang HJ, Song JY, Chun BC. Incidence and risk factors of COVID-19 in a tertiary hospital and the effectiveness of booster vaccination among health care workers: A retrospective cohort study, January 2020 to June 2022. Am J Infect Control 2024:S0196-6553(24)00023-3. [PMID: 38246494 DOI: 10.1016/j.ajic.2024.01.010] [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: 10/07/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/23/2024]
Abstract
BACKGROUND Health care workers (HCWs) face a higher risk of infection and may transmit pathogens to patients during a pandemic. This study aims to evaluate infection-control measures by analyzing the incidence and risk factors of COVID-19 and estimating vaccine effectiveness (VE) at a tertiary hospital in Seoul, Republic of Korea. METHODS This study included 2,516 HCWs from January 1, 2020, to June 30, 2022. Data were analyzed to determine the incidence density and cumulative incidence; the results were compared by the age- and gender-specific standardized incidence ratios (SIR). VE was estimated with multivariate Cox proportional-hazard models as 1-adjusted hazard ratio × 100%. RESULTS SIR indicated a lower COVID-19 risk in the hospital population than in the general Korean population (SIR, 0.81; 95% confidence interval [CI]: 0.76-0.87). Multivariate Cox analysis indicated that, compared to doctors, nonmedical service supporters and other HCWs (excluding doctors and nurses) were high-risk groups (adjusted hazard ratio [95% CI], 1.72 [1.04-2.83] and 1.76 [1.20-2.58], respectively). Compared to the outpatient unit, the emergency department was a high-risk department (1.70 [1.16-2.50]). The VE of the booster dose was 55.47%, compared to no or incomplete vaccination (95% CI: 22.63-74.37). CONCLUSIONS Besides encouraging HCWs vaccination, effective infection-control measures should target high-risk groups and departments.
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Affiliation(s)
- Hae Ry Lee
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea; Department of Epidemiology and Health Informatics, Graduate School of Public Health, Korea University, Seoul, South Korea
| | - Sung Ran Kim
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea
| | - Min Hee Cho
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea
| | - Da Eun Kim
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea
| | - Su Yeon Jang
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea
| | - Jae Eun Lee
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea
| | - Hye Rin Jeong
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea
| | - Hyeon Jeong Kang
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea
| | - Joon Young Song
- Infection Control Team, Korea University Guro Hospital, Seoul, South Korea; Division of Infectious Disease, Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea
| | - Byung Chul Chun
- Department of Epidemiology and Health Informatics, Graduate School of Public Health, Korea University, Seoul, South Korea; Department of Preventive Medicine, College of Medicine, Korea University, Seoul, South Korea.
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3
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Yan S, Patel JB, Lee JE, Elmestekawy KA, Ratnasingham SR, Yuan Q, Herz LM, Noel NK, Johnston MB. Correction to "A Templating Approach to Controlling the Growth of Coevaporated Halide Perovskites". ACS Energy Lett 2023; 8:4714-4715. [PMID: 37969252 PMCID: PMC10644385 DOI: 10.1021/acsenergylett.3c02121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Indexed: 11/17/2023]
Abstract
[This corrects the article DOI: 10.1021/acsenergylett.3c01368.].
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4
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Karas PJ, Lee JE, Frank TS, Morden FT, Shaltoni H, Kan P. Robotic-guided direct transtemporal embolization of an indirect carotid cavernous fistula. J Neurointerv Surg 2023; 15:1122-1123. [PMID: 36627196 DOI: 10.1136/jnis-2022-019868] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/28/2022] [Indexed: 01/11/2023]
Abstract
A middle-aged patient presented with right-sided chemosis, exophthalmos, and progressive visual loss. Digital subtraction angiography revealed a type D carotid-cavernous fistula (CCF). Transarterial embolization through the internal maxillary artery was unsuccessful, and there was no venous access to the CCF. A robotic-guided direct transtemporal embolization of the CCF with Onyx was performed, resulting in successful fistula obliteration and symptom resolution. This is the first reported case of a robotic-guided direct transcranial CCF embolization. We include a technical video that demonstrates this procedure (Supplemental File 1).
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Affiliation(s)
- Patrick J Karas
- Department of Neurosurgery, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Jae Eun Lee
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Thomas S Frank
- Department of Neurosurgery, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Frances Tiffany Morden
- Department of Neurosurgery, University of Hawai'i at Mānoa John A Burns School of Medicine, Honolulu, Hawaii, USA
| | - Hashem Shaltoni
- Department of Neurology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Peter Kan
- Department of Neurosurgery, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
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5
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Yan S, Patel JB, Lee JE, Elmestekawy KA, Ratnasingham SR, Yuan Q, Herz LM, Noel NK, Johnston MB. A Templating Approach to Controlling the Growth of Coevaporated Halide Perovskites. ACS Energy Lett 2023; 8:4008-4015. [PMID: 37854049 PMCID: PMC10580315 DOI: 10.1021/acsenergylett.3c01368] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/25/2023] [Indexed: 10/20/2023]
Abstract
Metal halide perovskite semiconductors have shown significant potential for use in photovoltaic (PV) devices. While fabrication of perovskite thin films can be achieved through a variety of techniques, thermal vapor deposition is particularly promising, allowing for high-throughput fabrication. However, the ability to control the nucleation and growth of these materials, particularly at the charge-transport layer/perovskite interface, is critical to unlocking the full potential of vapor-deposited perovskite PV. In this study, we explore the use of a templating layer to control the growth of coevaporated perovskite films and find that such templating leads to highly oriented films with identical morphology, crystal structure, and optoelectronic properties independent of the underlying layers. Solar cells incorporating templated FA0.9Cs0.1PbI3-xClx show marked improvements with steady-state power conversion efficiency over 19.8%. Our findings provide a straightforward and reproducible method of controlling the charge-transport layer/coevaporated perovskite interface, further clearing the path toward large-scale fabrication of efficient PV devices.
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Affiliation(s)
- Siyu Yan
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Jay B. Patel
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Jae Eun Lee
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Karim A. Elmestekawy
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Sinclair R. Ratnasingham
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Qimu Yuan
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Laura M. Herz
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
- Institute
for Advanced Study, Technical University
of Munich, Munich, Lichtenbergstrasse 2a, D-85748 Garching Germany
| | - Nakita K. Noel
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Michael B. Johnston
- Department
of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
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Karas PJ, Lee JE, Oliver BT, Allison RZ, Lees KA, Shaltoni H, Kan P. Endoscopic endonasal transsphenoidal Onyx embolization of a paracavernous dural arteriovenous fistula. J Neurointerv Surg 2023; 15:1055. [PMID: 36944494 DOI: 10.1136/jnis-2022-019971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/01/2023] [Indexed: 03/23/2023]
Abstract
Paracavernous dural arteriovenous fistulas (pdAVFs) are extremely rare and can mimic carotid cavernous fistulas (CCFs) in both clinical presentation and imaging characteristics. Access to the venous pouch often presents the greatest challenge in the treatment of pdAVFs. Here we present a novel access technique utilizing an endoscopic endonasal transsphenoidal approach, where we directly puncture the venous pouch under both stereotactic guidance and endoscopic visualization, thereby completely embolizing a pdAVF with no alternate access (video 1). neurintsurg;15/10/1055/V1F1V1Video 1Technical video demonstrates the complete embolization of a pdAVF using an endoscopic endonasal transsphenoidal approach.
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Affiliation(s)
- Patrick J Karas
- Neurosurgery, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Jae Eun Lee
- Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Brian T Oliver
- Neurosurgery, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Randall Z Allison
- Neurosurgery, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Katherine A Lees
- Otolaryngology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Hashem Shaltoni
- Neurology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Peter Kan
- Neurosurgery, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
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7
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Lee JE, Kim KT, Shin SJ, Cheong JH, Choi YY. Genomic and evolutionary characteristics of metastatic gastric cancer by routes. Br J Cancer 2023; 129:672-682. [PMID: 37422528 PMCID: PMC10421927 DOI: 10.1038/s41416-023-02338-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 06/07/2023] [Accepted: 06/19/2023] [Indexed: 07/10/2023] Open
Abstract
BACKGROUND In gastric cancer (GC) patients, metastatic progression through the lymphatic, hematogenous, peritoneal, and ovarian routes, is the ultimate cause of death. However, the genomic and evolutionary characteristics of metastatic GC have not been widely evaluated. METHODS Whole-exome sequencing data were analyzed for 99 primary and paired metastatic gastric cancers from 15 patients who underwent gastrectomy and metastasectomy. RESULTS Hematogenous metastatic tumors were associated with increased chromosomal instability and de novo gain/amplification in cancer driver genes, whereas peritoneal/ovarian metastasis was linked to sustained chromosomal stability and de novo somatic mutations in driver genes. The genomic distance of the hematogenous and peritoneal metastatic tumors was found to be closer to the primary tumors than lymph node (LN) metastasis, while ovarian metastasis was closer to LN and peritoneal metastasis than the primary tumor. Two migration patterns for metastatic GCs were identified; branched and diaspora. Both molecular subtypes of the metastatic tumors, rather than the primary tumor, and their migration patterns were related to patient survival. CONCLUSIONS Genomic characteristics of metastatic gastric cancer is distinctive by routes and associated with patients' prognosis along with genomic evolution pattenrs, indicating that both primary and metastatic gastric cancers require genomic evaluation.
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Affiliation(s)
- Jae Eun Lee
- Portrai Inc., Seoul, Korea
- Department of Surgery, Yonsei University Health System, Yonsei University College of Medicine, Seoul, South Korea
| | - Ki Tae Kim
- Department of Molecular Genetics & Dental Pharmacology, School of Dentistry, Seoul National University, Seoul, South Korea
- Dental Research Institute and Dental Multi-omics Center, Seoul National University, Seoul, South Korea
| | - Su-Jin Shin
- Department of Pathology, Yonsei University Health System, Yonsei University College of Medicine, Seoul, South Korea
| | - Jae-Ho Cheong
- Department of Surgery, Yonsei University Health System, Yonsei University College of Medicine, Seoul, South Korea.
| | - Yoon Young Choi
- Department of Surgery, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, South Korea.
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Jang E, Shin MK, Kim H, Lim JY, Lee JE, Park J, Kim J, Kim H, Shin Y, Son HY, Choi YY, Hyung WJ, Noh SH, Suh JS, Sung JY, Huh YM, Cheong JH. Author Correction: Clinical molecular subtyping reveals intrinsic mesenchymal reprogramming in gastric cancer cells. Exp Mol Med 2023:10.1038/s12276-023-01037-6. [PMID: 37322356 DOI: 10.1038/s12276-023-01037-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023] Open
Affiliation(s)
- Eunji Jang
- MediBio-Informatics Research Center, Novomics Co., Ltd., Seoul, Republic of Korea
| | - Min-Kyue Shin
- College of Medicine, Yonsei University, Seoul, Republic of Korea
- Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, Republic of Korea
| | - Hyunki Kim
- Department of Pathology, Yonsei University, Seoul, Republic of Korea
| | - Joo Yeon Lim
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Jae Eun Lee
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Jungmin Park
- Department of Radiology, Yonsei University, Seoul, Republic of Korea
| | - Jungeun Kim
- MediBio-Informatics Research Center, Novomics Co., Ltd., Seoul, Republic of Korea
| | - Hyeseon Kim
- MediBio-Informatics Research Center, Novomics Co., Ltd., Seoul, Republic of Korea
| | - Youngmin Shin
- Department of Radiology, Yonsei University, Seoul, Republic of Korea
| | - Hye-Young Son
- Department of Radiology, Yonsei University, Seoul, Republic of Korea
| | - Yoon Young Choi
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Woo Jin Hyung
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Sung Hoon Noh
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Jin-Suck Suh
- Department of Radiology, Yonsei University, Seoul, Republic of Korea
| | - Ji-Yong Sung
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
- Department of Biomedical Systems Informatics, Yonsei University, Seoul, Republic of Korea
| | - Yong-Min Huh
- College of Medicine, Yonsei University, Seoul, Republic of Korea.
- Department of Radiology, Yonsei University, Seoul, Republic of Korea.
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, Republic of Korea.
- Department of Biochemistry & Molecular Biology, College of Medicine, Yonsei University, Seoul, Republic of Korea.
- Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Jae-Ho Cheong
- College of Medicine, Yonsei University, Seoul, Republic of Korea.
- Department of Surgery, Yonsei University, Seoul, Republic of Korea.
- Department of Biomedical Systems Informatics, Yonsei University, Seoul, Republic of Korea.
- Department of Biochemistry & Molecular Biology, College of Medicine, Yonsei University, Seoul, Republic of Korea.
- Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
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9
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Jang E, Shin MK, Kim H, Lim JY, Lee JE, Park J, Kim J, Kim H, Shin Y, Son HY, Choi YY, Hyung WJ, Noh SH, Suh JS, Sung JY, Huh YM, Cheong JH. Clinical molecular subtyping reveals intrinsic mesenchymal reprogramming in gastric cancer cells. Exp Mol Med 2023:10.1038/s12276-023-00989-z. [PMID: 37121972 DOI: 10.1038/s12276-023-00989-z] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/31/2022] [Accepted: 02/14/2023] [Indexed: 05/02/2023] Open
Abstract
The mesenchymal cancer phenotype is known to be clinically related to treatment resistance and a poor prognosis. We identified gene signature-based molecular subtypes of gastric cancer (GC, n = 547) based on transcriptome data and validated their prognostic and predictive utility in multiple external cohorts. We subsequently examined their associations with tumor microenvironment (TME) features by employing cellular deconvolution methods and sequencing isolated GC populations. We further performed spatial transcriptomics analysis and immunohistochemistry, demonstrating the presence of GC cells in a partial epithelial-mesenchymal transition state. We performed network and pharmacogenomic database analyses to identify TGF-β signaling as a driver pathway and, thus, a therapeutic target. We further validated its expression in tumor cells in preclinical models and a single-cell dataset. Finally, we demonstrated that inhibition of TGF-β signaling negated mesenchymal/stem-like behavior and therapy resistance in GC cell lines and mouse xenograft models. In summary, we show that the mesenchymal GC phenotype could be driven by epithelial cancer cell-intrinsic TGF-β signaling and propose therapeutic strategies based on targeting the tumor-intrinsic mesenchymal reprogramming of medically intractable GC.
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Affiliation(s)
- Eunji Jang
- MediBio-Informatics Research Center, Novomics Co., Ltd., Seoul, Republic of Korea
| | - Min-Kyue Shin
- College of Medicine, Yonsei University, Seoul, Republic of Korea
- Department of Digital Health, Samsung Advanced Institute of Health Science and Technology, Seoul, Republic of Korea
| | - Hyunki Kim
- Department of Pathology, Yonsei University, Seoul, Republic of Korea
| | - Joo Yeon Lim
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Jae Eun Lee
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Jungmin Park
- Department of Radiology, Yonsei University, Seoul, Republic of Korea
| | - Jungeun Kim
- MediBio-Informatics Research Center, Novomics Co., Ltd., Seoul, Republic of Korea
| | - Hyeseon Kim
- MediBio-Informatics Research Center, Novomics Co., Ltd., Seoul, Republic of Korea
| | - Youngmin Shin
- Department of Radiology, Yonsei University, Seoul, Republic of Korea
| | - Hye-Young Son
- Department of Radiology, Yonsei University, Seoul, Republic of Korea
| | - Yoon Young Choi
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Woo Jin Hyung
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Sung Hoon Noh
- Department of Surgery, Yonsei University, Seoul, Republic of Korea
| | - Jin-Suck Suh
- Department of Radiology, Yonsei University, Seoul, Republic of Korea
| | - Ji-Yong Sung
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
- Department of Biomedical Systems Informatics, Yonsei University, Seoul, Republic of Korea
| | - Yong-Min Huh
- College of Medicine, Yonsei University, Seoul, Republic of Korea.
- Department of Radiology, Yonsei University, Seoul, Republic of Korea.
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, Republic of Korea.
- Department of Biochemistry & Molecular Biology, College of Medicine, Yonsei University, Seoul, Republic of Korea.
- Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Jae-Ho Cheong
- College of Medicine, Yonsei University, Seoul, Republic of Korea.
- Department of Surgery, Yonsei University, Seoul, Republic of Korea.
- Department of Biomedical Systems Informatics, Yonsei University, Seoul, Republic of Korea.
- Department of Biochemistry & Molecular Biology, College of Medicine, Yonsei University, Seoul, Republic of Korea.
- Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Oh SK, Lim BG, Kim H, Lee JH, Lee JE. Performance of a new auxiliary device based on wrist brace to improve accuracy and feasibility in neuromuscular monitoring with acceleromyography in prone-positioned patients undergoing lumbar spine surgery: a prospective randomized clinical trial. J Clin Monit Comput 2023:10.1007/s10877-023-01000-w. [PMID: 37004664 DOI: 10.1007/s10877-023-01000-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 03/21/2023] [Indexed: 04/04/2023]
Abstract
Accuracy of acceleromyography (AMG) is not be comparable to that of mechanomyography or electromyography (EMG). In particular, the prone position may reduce the accuracy and feasibility of AMG. We developed a new device based on wrist brace to allow free thumb movement and fix the other parts of the hand and wrist. We aimed to test whether the brace applied to the AMG would increase precision of AMG and agreement with the EMG in the prone position. Fifty-seven patients, undergoing lumbar surgery under general anesthesia, were randomly assigned to groups to which AMG was applied with or without (no) brace (29 in group B vs. 28 in group NB). EMG was performed in the contralateral arm. Repeatability coefficients of the first twitch height (T1) and train-of-four (TOF) ratio were assessed from nine consecutive measurements during spontaneous recovery from rocuronium-induced neuromuscular block and the AMGs of the two groups were compared in prone position. The agreement between AMG and EMG in each group was assessed using the Bland-Altman method. In group B, the repeatability coefficient of T1 was significantly lower during the recovery to T1 of 25% and TOF ratio of 0.9 (P = 0.017 and 0.033, respectively), indicating higher precision. The mean differences of bias (95% limits of agreement) between AMG and EMG in TOF ratio of 0.9 were 6.839 (- 26.54 to 40.22) in group NB and 3.922 (- 21.83 to 29.67) in group B. The wide limits of agreement in group NB was slightly narrowed in group B but without significance. Trial registration: registered on the UMIN Clinical Trials Registry in August 2020 (UMIN000041310).
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Affiliation(s)
- Seok Kyeong Oh
- Department of Anesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Byung Gun Lim
- Department of Anesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
| | - Heezoo Kim
- Department of Anesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jae Hak Lee
- Department of Anesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Jae Eun Lee
- Department of Anesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
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11
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LoPresti MA, Du RY, Lee JE, Iacobas I, Bergstrom K, McClugage SG, Lam SK. Germline genetic mutations in pediatric cerebrovascular anomalies: a multidisciplinary approach to screening, testing, and management. J Neurosurg Pediatr 2023; 31:212-220. [PMID: 36681951 DOI: 10.3171/2022.11.peds22392] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/15/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Genetic alterations are increasingly recognized as etiologic factors linked to the pathogenesis and development of cerebrovascular anomalies. Their identification allows for advanced screening and targeted therapeutic approaches. The authors aimed to describe the role of a collaborative approach to care and genetic testing in pediatric patients with neurovascular anomalies, with the objectives of identifying what genetic testing recommendations were made, the yield of genetic testing, and the implications for familial screening and management at present and in the future. METHODS The authors performed a descriptive retrospective cohort study examining pediatric patients genetically screened through the Pediatric Neurovascular Program of a single treatment center. Patients 18 years of age and younger with neurovascular anomalies, diagnosed radiographically or histopathologically, were evaluated for germline genetic testing. Patient demographic data and germline genetic testing and recommendation, clinical, treatment, and outcome data were collected and analyzed. RESULTS Sixty patients were included; 29 (47.5%) were female. The mean age at consultation was 11.0 ± 4.9 years. Diagnoses included cerebral arteriovenous malformations (AVMs) (n = 23), cerebral cavernous malformations (n = 19), non-neurofibromatosis/non-sickle cell moyamoya (n = 8), diffuse cerebral proliferative angiopathy, and megalencephaly-capillary malformation. Of the 56 patients recommended to have genetic testing, 40 completed it. Genetic alterations were found in 13 (23%) patients. Four patients with AVMs had RASA1, GDF2, and ACVRL1 mutations. Four patients with cavernous malformations had Krit1 mutations. One with moyamoya disease had an RNF213 mutation. Three patients with megalencephaly-capillary malformation had PIK3CA mutations, and 1 patient with a cavernous sinus lesion had an MED12 mutation. The majority of AVM patients were treated surgically. Patients with diffuse cerebral proliferative angiopathy were treated medically with sirolimus. At-risk relatives of 3 patients positive for genetic anomalies had also been tested. CONCLUSIONS This study demonstrates a role for exploring genetic alterations in the identification and treatment of pediatric neurovascular disease pathogenesis. Germline genetic mutations were found in almost one-quarter of the patients screened in this study, results that helped to identify medically targeted treatment modalities for some pediatric neurovascular patients. Insight into the genetic etiology of vascular anomalies may provide broader clinical implications for risk assessment, family screening, follow-up surveillance, and medical management.
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Affiliation(s)
- Melissa A LoPresti
- 1Department of Neurosurgery, Northwestern University Feinberg School of Medicine, and Division of Pediatric Neurosurgery, Lurie Children's Hospital, Chicago, Illinois
- 2Department of Neurosurgery, Baylor College of Medicine; Division of Pediatric Neurosurgery, Texas Children's Hospital, Houston, Texas
| | - Rebecca Y Du
- 1Department of Neurosurgery, Northwestern University Feinberg School of Medicine, and Division of Pediatric Neurosurgery, Lurie Children's Hospital, Chicago, Illinois
| | - Jae Eun Lee
- 2Department of Neurosurgery, Baylor College of Medicine; Division of Pediatric Neurosurgery, Texas Children's Hospital, Houston, Texas
| | - Ionela Iacobas
- 3Department of Pediatrics, Baylor College of Medicine; Section of Hematology Oncology, Vascular Anomalies Center, Texas Children's Hospital, Houston, Texas; and
| | - Katie Bergstrom
- 4Department of Pediatrics, Division of Genetics, Seattle Children's Hospital, Seattle, Washington
| | - Samuel G McClugage
- 2Department of Neurosurgery, Baylor College of Medicine; Division of Pediatric Neurosurgery, Texas Children's Hospital, Houston, Texas
| | - Sandi K Lam
- 1Department of Neurosurgery, Northwestern University Feinberg School of Medicine, and Division of Pediatric Neurosurgery, Lurie Children's Hospital, Chicago, Illinois
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12
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Fernandez L, LoPresti MA, Lee JE, DeCuypere M, Lam SK. Flexible neuroendoscopy for endoscopic third ventriculostomy and fourth ventricular arachnoid cyst fenestration in an infant. J Neurosurg Pediatr 2023; 31:391-396. [PMID: 36787120 DOI: 10.3171/2022.12.peds22437] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/27/2022] [Indexed: 02/12/2023]
Abstract
Arachnoid cysts of the fourth ventricle are rarely reported. Management options include CSF diversion, cyst fenestration, or cyst excision. Fenestration can be done via open microsurgical technique or endoscopically with or without simultaneous third ventriculostomy; and both rigid and flexible endoscopy have been used successfully. However, application of this treatment modality in pediatric patients is not well described. Therefore, to their knowledge, the authors report the first successful treatment of a fourth ventricular arachnoid cyst with a single frontal burr hole entry point for third ventriculostomy and fourth ventricular arachnoid cyst fenestration performed using flexible neuroendoscopy. The patient was a 13-month-old boy presenting with progressive macrocephaly. The authors review their technique, discuss special considerations when using this approach, and include an annotated intraoperative video for demonstration to help instruct and guide management. The authors demonstrate with an example that a single frontal burr hole entry point for flexible endoscopic third ventriculostomy and navigation through a dilated cerebral aqueduct for fourth ventricular arachnoid cyst fenestration is a viable treatment for symptomatic fourth ventricular arachnoid cysts in children.
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Affiliation(s)
- Luis Fernandez
- 1Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,2Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Illinois; and
| | - Melissa A LoPresti
- 1Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,2Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Illinois; and
| | | | - Michael DeCuypere
- 1Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,2Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Illinois; and
| | - Sandi K Lam
- 1Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,2Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Illinois; and
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13
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Zhai L, Lee JE. Analyzing the Disaster Preparedness Capability of Local Government Using AHP: Zhengzhou 7.20 Rainstorm Disaster. Int J Environ Res Public Health 2023; 20:952. [PMID: 36673708 PMCID: PMC9859418 DOI: 10.3390/ijerph20020952] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/30/2022] [Accepted: 01/02/2023] [Indexed: 05/30/2023]
Abstract
This study aimed to identify factors influencing disaster preparedness capability, measure and compare the relative importance of evaluation indicators of preparedness capability in a rainstorm disaster, and analyze the impact of these factors on disaster preparedness so as to improve disaster preparedness capability. The evaluation model was proposed by constructing the target level (the first level) as an indicator system; this was divided into four indicators (the second level): planning, organization, equipment, and education and exercise, and 14 tertiary evaluation indicators (the third level). The validity of the evaluation index system was demonstrated, and the weight of each level was calculated using the Analytic Hierarchical Process and expert survey methods, taking the example of the Zhengzhou "7.20" rainstorm to conduct an empirical analysis of the proposed model. The weak points of disaster preparedness capability were identified. The empirical analysis revealed that organization scored the highest, followed by planning, equipment, and education and exercise, indicating the lack of disaster management equipment and resources, disaster management training, and exercise and public emergency safety education. These results will help in future decision-making, as they provide a clear understanding of what needs to be done to improve disaster preparedness capability.
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Affiliation(s)
| | - Jae Eun Lee
- Department of Public Administration & National Crisisonomy Institute, Chungbuk National University, Cheongju 28644, Republic of Korea
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14
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Yun JS, Song H, Kim NH, Cha SY, Hwang KH, Lee JE, Jeong CH, Song SH, Kim S, Cho ES, Kim HS, Yook JI. Glycogen Synthase Kinase-3 Interaction Domain Enhances Phosphorylation of SARS-CoV-2 Nucleocapsid Protein. Mol Cells 2022; 45:911-922. [PMID: 36572560 PMCID: PMC9794558 DOI: 10.14348/molcells.2022.0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 09/16/2022] [Indexed: 12/28/2022] Open
Abstract
A structural protein of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), nucleocapsid (N) protein is phosphorylated by glycogen synthase kinase (GSK)-3 on the serine/arginine (SR) rich motif located in disordered regions. Although phosphorylation by GSK-3β constitutes a critical event for viral replication, the molecular mechanism underlying N phosphorylation is not well understood. In this study, we found the putative alpha-helix L/FxxxL/AxxRL motif known as the GSK-3 interacting domain (GID), found in many endogenous GSK-3β binding proteins, such as Axins, FRATs, WWOX, and GSKIP. Indeed, N interacts with GSK-3β similarly to Axin, and Leu to Glu substitution of the GID abolished the interaction, with loss of N phosphorylation. The N phosphorylation is also required for its structural loading in a virus-like particle (VLP). Compared to other coronaviruses, N of Sarbecovirus lineage including bat RaTG13 harbors a CDK1-primed phosphorylation site and Gly-rich linker for enhanced phosphorylation by GSK-3β. Furthermore, we found that the S202R mutant found in Delta and R203K/G204R mutant found in the Omicron variant allow increased abundance and hyper-phosphorylation of N. Our observations suggest that GID and mutations for increased phosphorylation in N may have contributed to the evolution of variants.
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Affiliation(s)
- Jun Seop Yun
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Hyeeun Song
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Nam Hee Kim
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - So Young Cha
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Kyu Ho Hwang
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Jae Eun Lee
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Cheol-Hee Jeong
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Sang Hyun Song
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Seonghun Kim
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Eunae Sandra Cho
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Hyun Sil Kim
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Jong In Yook
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul 03722, Korea
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15
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Park J, Choi J, Lee JE, Choi H, Im HJ. Spatial Transcriptomics-Based Identification of Molecular Markers for Nanomedicine Distribution in Tumor Tissue. Small Methods 2022; 6:e2201091. [PMID: 36180396 DOI: 10.1002/smtd.202201091] [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] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Indexed: 06/16/2023]
Abstract
The intratumoral accumulation of nanomedicine has been considered a passive process, referred to as the enhanced permeability and retention effect. Recent studies have suggested that the tumor uptake of nanomedicines follows an energy-dependent pathway rather than being a passive process. Herein, to explore the factor candidates that are associated with nanomedicine tumor uptake, a molecular marker identification platform is developed by integrating microscopic fluorescence images of a nanomedicine distribution with spatial transcriptomics information. When this approach is applied to PEGylated liposomes, molecular markers related to hypoxia, glycolysis, and apoptosis can be identified as being related to the intratumoral distribution of the nanomedicine. It is expected that the method can be applied to explain the distribution of a wide range of nanomedicines and that the data obtained from this analysis can enhance the precise utilization of nanomedicines.
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Affiliation(s)
- Jeongbin Park
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jinyeong Choi
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jae Eun Lee
- Portrai Inc, Seoul, 03136, Republic of Korea
| | - Hongyoon Choi
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
- Department of Nuclear Medicine, Seoul National University Hospital, Seoul, 03080, Republic of Korea
| | - Hyung-Jun Im
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
- Cancer Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
- Research Institute for Convergence Science, Seoul National University, Seoul, 08826, Republic of Korea
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16
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Lee JE, Srinivasan VM, Kan P. Woven EndoBridge embolization in the retreatment of basilar apex aneurysm. Neurosurg Focus Video 2022; 7:V8. [PMID: 36425269 PMCID: PMC9664497 DOI: 10.3171/2022.7.focvid21152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 07/15/2022] [Indexed: 06/16/2023]
Abstract
The Woven EndoBridge (WEB) device was approved by the U.S. FDA for its excellent angiographic occlusion of intracranial aneurysms and high safety profile, based on the landmark WEB-IT (WEB Intrasaccular Therapy) trial. There remains, however, a few cases of aneurysm recurrence that necessitate retreatment after the initial WEB procedure. In this technical video, the authors present the case of a middle-aged patient who showed significant basilar apex aneurysm recurrence and growth along with device compaction that required retreatment. Various aspects of treating aneurysms with a prior WEB device, including procedural technique, are discussed. The video can be found here: https://stream.cadmore.media/r10.3171/2022.7.FOCVID21152.
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Affiliation(s)
- Jae Eun Lee
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas
| | - Visish M. Srinivasan
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona; and
| | - Peter Kan
- Department of Neurosurgery, University of Texas Medical Branch, Galveston, Texas
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17
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Kim SR, Kang HJ, Jeong HR, Jang SY, Lee JE, Kim DE, Lee HR, Cho MH, Noh JY, Cheong HJ, Kim WJ, Song JY. Relative Effectiveness of COVID-19 Vaccination in Healthcare Workers: 3-Dose Versus 2-Dose Vaccination. J Korean Med Sci 2022; 37:e267. [PMID: 36065651 PMCID: PMC9444572 DOI: 10.3346/jkms.2022.37.e267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/25/2022] [Indexed: 11/20/2022] Open
Abstract
The omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is known to have high infectivity and is more likely to evade vaccine immunity. However, booster vaccination is expected to strengthen cross-reactive immunity, thereby increasing the vaccine effectiveness (VE). This study aimed to evaluate the relative VE of the 3-dose (booster) vaccination compared with the 2-dose primary series vaccination in healthcare workers during omicron variant-dominant periods. During the omicron-dominant period from February 1, 2022 to February 28, 2022, a 1:1 matched case-control study was conducted. Healthcare workers with positive SARS-CoV-2 test results were classified as positive cases, whereas those with negative results served as controls. Compared with the 2-dose primary series vaccination, booster vaccination with mRNA vaccine showed moderate VE (53.1%). However, in multivariate analysis including the time elapsed after vaccination, the significant VE disappeared, reflecting the impact of recent vaccination rather than the third dose itself.
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Affiliation(s)
- Sung Ran Kim
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
| | - Hyeon Jeong Kang
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
| | - Hye Rin Jeong
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
| | - Su Yeon Jang
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
| | - Jae Eun Lee
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
| | - Da Eun Kim
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
| | - Hae Ry Lee
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
| | - Min Hee Cho
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
| | - Ji Yun Noh
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
- Division of Infectious Disease, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
- Vaccine Innovation Center-KU Medicine (VIC-K), Seoul, Korea
| | - Hee Jin Cheong
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
- Division of Infectious Disease, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
- Vaccine Innovation Center-KU Medicine (VIC-K), Seoul, Korea
| | - Woo Joo Kim
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
- Division of Infectious Disease, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
- Vaccine Innovation Center-KU Medicine (VIC-K), Seoul, Korea
| | - Joon Young Song
- Infection Control Team, Korea University Guro Hospital, Seoul, Korea
- Division of Infectious Disease, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
- Vaccine Innovation Center-KU Medicine (VIC-K), Seoul, Korea.
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18
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Lee JE, Choi YY, An JY, Kim KT, Shin SJ, Cheong JH. Clinicopathologic and genomic characteristics of mucinous gastric adenocarcinoma. Gastric Cancer 2022; 25:697-711. [PMID: 35534656 DOI: 10.1007/s10120-022-01295-9] [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: 12/07/2021] [Accepted: 03/18/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Mucinous gastric adenocarcinoma (MGC) is a rare but distinctive histologic subtype of gastric cancer (GC). The clinico-pathologic and genomic characteristics of MGC have not been well evaluated. METHODS We collected individual data from five cohorts targeting the microsatellite instability (MSI) of GC (n = 5089) to evaluate the clinico-pathologic characteristics of MGC. In addition, public genomic databases were used for genomic analysis. The characteristics of MGC were compared with those of non-mucinous GC (NMGC). RESULTS MGC (n = 158, 3.1%) showed distinctive characteristics in terms of age, sex, and TNM stage compared to NMGC (n = 4931). MGC was frequently associated with MSI-high (OR: 2.24, 95% confidence interval [CI] 1.44-3.40, p < 0.001), while mutually exclusive to the Epstein-Barr virus type. The prognosis of MGC was better than that of NMGC (adj.HR: 0.731, 95% CI 0.556-0.962, p = 0.025). There was no clear benefit from postoperative chemotherapy in MGC. TP53 was the main driver mutation in the MGC without recurrent variants. MGC was related to high expression of GPR120 and B3GNT6 and moderate regulation of epithelial-mesenchymal transition (EMT)-up signature with a high EMT-down signature, and those characteristics was related to favorable prognosis of GC (log-rank p = 0.044, p < 0.001, p < 0.001, respectively). MSI-H of MGC was associated with low cancer-associate fibroblasts but high CD274 (PD-L1) expression compared to microsatellite stable MGC, suggesting that immune checkpoint inhibitors may be useful for the MSI-H of MGC. CONCLUSION MGC could be a surrogate for performing MSI but not the EBV test in GC. Further, its genetic characteristics lead to a favorable prognosis for MGC.
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Affiliation(s)
- Jae Eun Lee
- Graduate School of Integrated Medicine, CHA Ilsan Medical Center, CHA University School of Medicine, Pocheon, Korea
| | - Yoon Young Choi
- Department of Surgery, CHA Ilsan Medical Center, CHA University School of Medicine, Pocheon, Korea.,Department of Surgery, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Ji Yeong An
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ki Tae Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Su-Jin Shin
- Department of Pathology, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Ho Cheong
- Department of Surgery, Yonsei University Health System, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Korea.
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19
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Lin T, Sun L, Lee JE, Kim SY, Jin DI. DNA damage repair is suppressed in porcine aged oocytes. J Anim Sci Technol 2021; 63:984-997. [PMID: 34796342 PMCID: PMC8564305 DOI: 10.5187/jast.2021.e90] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/01/2021] [Accepted: 07/09/2021] [Indexed: 12/24/2022]
Abstract
This study sought to evaluate DNA damage and repair in porcine postovulatory aged
oocytes. The DNA damage response, which was assessed by H2A.X expression,
increased in porcine aged oocytes over time. However, the aged oocytes exhibited
a significant decrease in the expression of RAD51, which reflects the DNA damage
repair capacity. Further experiments suggested that the DNA repair ability was
suppressed by the downregulation of genes involved in the homologous
recombination (HR) and nonhomologous end-joining (NHEJ) pathways. The expression
levels of the cell cycle checkpoint genes, CHEK1 and
CHEK2, were upregulated in porcine aged oocytes in response
to induced DNA damage. Immunofluorescence results revealed that the expression
level of H3K79me2 was significantly lower in porcine aged oocytes than in
control oocytes. In addition, embryo quality was significantly reduced in aged
oocytes, as assessed by measuring the cell proliferation capacity. Our results
provide evidence that DNA damage is increased and the DNA repair ability is
suppressed in porcine aged oocytes. These findings increase our understanding of
the events that occur during postovulatory oocyte aging.
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Affiliation(s)
- Tao Lin
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China.,Division of Animal & Dairy Science, Chungnam National University, Daejeon 34134, Korea
| | - Ling Sun
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China.,Division of Animal & Dairy Science, Chungnam National University, Daejeon 34134, Korea
| | - Jae Eun Lee
- Division of Animal & Dairy Science, Chungnam National University, Daejeon 34134, Korea
| | - So Yeon Kim
- Division of Animal & Dairy Science, Chungnam National University, Daejeon 34134, Korea
| | - Dong Il Jin
- Division of Animal & Dairy Science, Chungnam National University, Daejeon 34134, Korea
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20
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Lee JE, Lim YH, Kim JH. UCH-L1 and UCH-L3 regulate the cancer stem cell-like properties through PI3 K/Akt signaling pathway in prostate cancer cells. Anim Cells Syst (Seoul) 2021; 25:312-322. [PMID: 34745437 PMCID: PMC8567960 DOI: 10.1080/19768354.2021.1987320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Castration-resistant prostate cancer (CRPC) is a highly aggressive and advanced prostate cancer that is currently incurable with conventional therapies. The recurrence and chemotherapy-resistant properties of CRPC are attributed to prostate cancer stem cells (CSCs). On the other hand, the factors regulating the prostate CSC-like properties have not been studied extensively. Previously, ubiquitin C-terminal hydrolase-L1 (UCH-L1) and ubiquitin C-terminal hydrolase-L3 (UCH-L3) were reported to be involved in prostate cancer cell progression through the epithelial-to-mesenchymal transition (EMT) regulation. Here, the differential regulation on the CSC-like properties by UCH-L1 and UCH-L3 were identified in prostate cancer cells. The CSC-like characteristics, such as the expression of pluripotency markers, chemoresistance, and sphere-forming ability, were promoted by UCH-L1, whereas those were repressed by UCH-L3. Moreover, the modulation of CSC-like properties by UCH-L1 and UCH-L3 was through the PI3 K/Akt signaling pathway. The CSC-like properties induced by UCH-L1 overexpression or UCH-L3 depletion were suppressed by the PI3 K/Akt pathway inhibitor. In conclusion, UCH-L1 and UCH-L3 are novel regulators of the CSC-like properties and shed light on new therapeutic strategies to overcome CSCs in prostate cancers.
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Affiliation(s)
- Jae Eun Lee
- Department of Biological Sciences, Inha University, Incheon, Korea
| | - Yun Hwan Lim
- Department of Biological Sciences, Inha University, Incheon, Korea
| | - Jung Hwa Kim
- Department of Biological Sciences, Inha University, Incheon, Korea
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21
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Lee JE, Lim CK, Song H, Choi SY, Lee DS. A highly smart MEMS acetone gas sensors in array for diet-monitoring applications. Micro and Nano Syst Lett 2021. [DOI: 10.1186/s40486-021-00136-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
AbstractIn the present work, gas sensor arrays consisted of four different sensing materials based on CuO and their depositions on the MEMS microheaters were designed, fabricated and characterized. The sensor array is consisted with CuO, CuO with Pt NPs, ZnO–CuO and ZnO–CuO with Au NPs and their gas sensing properties are characterized for detection of exhaled breath-related VOCs. Through MEMS microheaters, power consumption is considered for application to healthcare devices which requires ultrasensitive acetone gas sensitivity. Also, using the principal component analysis, it enables to discriminate acetone gas, a biomarker for fat burning during diet, with other VOCs gases. The device would be applicable for on-site diet monitoring in the field of mobile healthcare.
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22
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Lee JE, Kan P. Commentary: Propensity-Adjusted Comparative Analysis of Radial Versus Femoral Access for Neurointerventional Treatments. Neurosurgery 2021; 89:E124-E125. [PMID: 33928379 DOI: 10.1093/neuros/nyab162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 03/06/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jae Eun Lee
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Peter Kan
- Department of Neurosurgery, University of Texas Medical Branch, Galveston, Texas, USA
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23
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Lee JE, Kan P. Commentary: Hemorrhage Following Complete Arteriovenous Malformation Resection With No Detectable Recurrence: Insights From a Twenty-Seven-Year Registry. Neurosurgery 2021; 89:E107-E108. [PMID: 33913489 DOI: 10.1093/neuros/nyab161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/06/2021] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jae Eun Lee
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Peter Kan
- Department of Neurosurgery, University of Texas Medical Branch, Galveston, Texas, USA
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24
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Park MS, Yang AY, Lee JE, Kim SK, Roe JS, Park MS, Oh MJ, An HJ, Kim MY. GALNT3 suppresses lung cancer by inhibiting myeloid-derived suppressor cell infiltration and angiogenesis in a TNFR and c-MET pathway-dependent manner. Cancer Lett 2021; 521:294-307. [PMID: 34416337 DOI: 10.1016/j.canlet.2021.08.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/28/2021] [Accepted: 08/14/2021] [Indexed: 01/10/2023]
Abstract
The deregulation of polypeptide N-acetyl-galactosaminyltransferases (GALNTs) contributes to several cancers, but their roles in lung cancer remain unclear. In this study, we have identified a tumor-suppressing role of GALNT3 in lung cancer. We found that GALNT3 suppressed lung cancer development and progression in both xenograft and syngeneic mouse models. Specifically, GALNT3 suppressed lung cancer initiation by inhibiting the self-renewal of lung cancer cells. More importantly, GALNT3 attenuated lung cancer growth by preventing the creation of a favorable tumor microenvironment (TME), which was attributed to GALNT3's ability to inhibit myeloid-derived suppressor cell (MDSC) infiltration into tumor sites and subsequent angiogenesis. We also identified a GALNT3-regulated gene (GRG) signature and found that lung cancer patients whose tumors exhibit the GRG signature showed more favorable prognoses. Further investigation revealed that GALNT3 suppressed lung cancer cell self-renewal by reducing β-catenin levels, which led to reduced expression of the downstream targets of the WNT pathway. In addition, GALNT3 inhibited MDSC infiltration into tumor sites by suppressing both the TNFR1-NFκB and cMET-pAKT pathways. Specifically, GALNT3 inhibited the nuclear localization of NFκB and the c-MET-induced phosphorylation of AKT. This then led to reduced production of CXCL1, a chemokine required for MDSC recruitment. Finally, we confirmed that the GALNT3-induced inhibition of the TNFR1-NFκB and cMET-pAKT pathways involved the O-GalNAcylation of the TNFR1 and cMET receptors. In summary, we have identified GALNT3 as the first GALNT member capable of suppressing lung cancer and uncovered a novel mechanism by which GALNT3 regulates the TME.
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Affiliation(s)
- Mi So Park
- Department of Biological Sciences, Korea Advanced Institute of Science And Technology (KAIST), Daejeon, Republic of Korea
| | - A-Yeong Yang
- Department of Biological Sciences, Korea Advanced Institute of Science And Technology (KAIST), Daejeon, Republic of Korea
| | - Jae Eun Lee
- Department of Biological Sciences, Korea Advanced Institute of Science And Technology (KAIST), Daejeon, Republic of Korea
| | - Seon Kyu Kim
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Jae-Seok Roe
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Min-Seok Park
- Department of Biological Sciences, Korea Advanced Institute of Science And Technology (KAIST), Daejeon, Republic of Korea
| | - Myung Jin Oh
- Asia-Pacific Glycomics Reference Site, Daejeon, Republic of Korea
| | - Hyun Joo An
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Republic of Korea
| | - Mi-Young Kim
- Department of Biological Sciences, Korea Advanced Institute of Science And Technology (KAIST), Daejeon, Republic of Korea; KAIST Institute for the BioCentury, Cancer Metastasis Control Center, Daejeon, Republic of Korea.
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25
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Lee JY, Lee JE, Moskowitz JT, Feaster DJ, Neilands TB, Dilworth SE, Rodriguez A, Carrico AW. An autoregressive cross-lagged model unraveling co-occurring stimulant use and HIV: Results from a randomized controlled trial. Drug Alcohol Depend 2021; 225:108752. [PMID: 34144507 PMCID: PMC8369386 DOI: 10.1016/j.drugalcdep.2021.108752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 03/28/2021] [Accepted: 03/29/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Evidence-based interventions are needed to address the use of stimulants such as methamphetamine as a driver of onward HIV transmission and faster clinical HIV progression among sexual minority men. Prior randomized controlled trials with people living with HIV who use substances indicate that financial incentives provided during contingency management (CM) are effective for achieving short-term reductions in stimulant use and HIV viral load. However, the benefits of CM are often not maintained after financial incentives for behavior change end. PURPOSE Data from a recently completed randomized controlled trial with 110 sexual minority men living with HIV who use methamphetamine was leveraged to examine mediators of the efficacy of a positive affect intervention for extending the benefits of CM. METHODS An autoregressive cross-lagged model was fit to determine if reductions in HIV viral load were mediated by intervention-related increases in positive affect and decreases in stimulant use measured in four waves over 15 months. RESULTS Higher baseline positive affect predicted significantly lower self-reported stimulant use immediately following the 3-month CM intervention period, even after controlling for self-reported stimulant use at baseline. Moreover, decreased stimulant use emerged as an independent predictor of long-term reductions HIV viral load at 15 months, even after adjusting for HIV viral load at baseline and the residual effect of the positive affect intervention. CONCLUSIONS Findings underscore the importance of durable reductions in stimulant use as a primary intervention target that is essential for optimizing the clinical and public health benefits of HIV treatment as prevention.
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Affiliation(s)
- Ji-Young Lee
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jae Eun Lee
- College of Health Sciences, Jackson State University, Jackson, MS, USA
| | - Judith T. Moskowitz
- Northwestern University Department of Medical Social Sciences, Northwestern University Feinberg school of Medicine, Chicago, IL, USA
| | - Daniel J. Feaster
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Torsten B. Neilands
- School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Samantha E. Dilworth
- School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Allan Rodriguez
- Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Adam W. Carrico
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
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26
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Choi YY, Shin SJ, Lee JE, Madlensky L, Lee ST, Park JS, Jo JH, Kim H, Nachmanson D, Xu X, Noh SH, Cheong JH, Harismendy O. Prevalence of cancer susceptibility variants in patients with multiple Lynch syndrome related cancers. Sci Rep 2021; 11:14807. [PMID: 34285288 PMCID: PMC8292343 DOI: 10.1038/s41598-021-94292-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 07/05/2021] [Indexed: 12/30/2022] Open
Abstract
Along with early-onset cancers, multiple primary cancers (MPCs) are likely resulting from increased genetic susceptibility; however, the associated predisposition genes or prevalence of the pathogenic variants genes in MPC patients are often unknown. We screened 71 patients with MPC of the stomach, colorectal, and endometrium, sequencing 65 cancer predisposition genes. A subset of 19 patients with early-onset MPC of stomach and colorectum were further evaluated for variants in cancer related genes using both normal and tumor whole exome sequencing. Among 71 patients with MPCs, variants classified to be pathogenic were observed in 15 (21.1%) patients and affected Lynch Syndrome (LS) genes: MLH1 (n = 10), MSH6 (n = 2), PMS2 (n = 2), and MSH2 (n = 1). All carriers had tumors with high microsatellite instability and 13 of them (86.7%) were early-onset, consistent with LS. In 19 patients with early-onset MPCs, loss of function (LoF) variants in RECQL5 were more prevalent in non-LS MPC than in matched sporadic cancer patients (OR = 31.6, 2.73–1700.6, p = 0.001). Additionally, there were high-confidence LoF variants at FANCG and CASP8 in two patients accompanied by somatic loss of heterozygosity in tumor, respectively. The results suggest that genetic screening should be considered for synchronous cancers and metachronous MPCs of the LS tumor spectrum, particularly in early-onset. Susceptibility variants in non-LS genes for MPC patients may exist, but evidence for their role is more elusive than for LS patients.
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Affiliation(s)
- Yoon Young Choi
- Department of Surgery, CHA University School of Medicine, Pocheon-si, Korea.,Department of Surgery, Yonsei University Health System, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu,, Seoul, 120-752, Korea.,Yonsei Biomedical Research Institute, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Su-Jin Shin
- Department of Pathology, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Eun Lee
- Yonsei Biomedical Research Institute, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Lisa Madlensky
- Moores Cancer Center and Division of Biomedical Informatics Department of Medicine, University of California San Diego School of Medicine, 3855 Health Sciences Dr, La Jolla, CA, 92037, USA.,Department of Family Medicine and Public Health, University of California San Diego School of Medicine, San Diego, CA, USA
| | - Seung-Tae Lee
- Hereditary Cancer Clinic, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea.,Department of Laboratory Medicine, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Soo Park
- Hereditary Cancer Clinic, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea.,Department of Medicine, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong-Hyeon Jo
- Department of Pathology, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Hyunki Kim
- Department of Pathology, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea
| | - Daniela Nachmanson
- Bioinformatics and Systems Biology Graduate Program, University of California San Diego School of Medicine, San Diego, USA
| | - Xiaojun Xu
- Moores Cancer Center and Division of Biomedical Informatics Department of Medicine, University of California San Diego School of Medicine, 3855 Health Sciences Dr, La Jolla, CA, 92037, USA
| | - Sung Hoon Noh
- Department of Surgery, Yonsei University Health System, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu,, Seoul, 120-752, Korea
| | - Jae-Ho Cheong
- Department of Surgery, Yonsei University Health System, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu,, Seoul, 120-752, Korea. .,Yonsei Biomedical Research Institute, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea.
| | - Olivier Harismendy
- Moores Cancer Center and Division of Biomedical Informatics Department of Medicine, University of California San Diego School of Medicine, 3855 Health Sciences Dr, La Jolla, CA, 92037, USA. .,Department of Medicine, University of California San Diego School of Medicine, San Diego, CA, USA.
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27
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Chen Y, Feng J, Chen A, Lee JE, An L. Risk perception of COVID-19: A comparative analysis of China and South Korea. Int J Disaster Risk Reduct 2021; 61:102373. [PMID: 34079690 PMCID: PMC8159706 DOI: 10.1016/j.ijdrr.2021.102373] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 05/14/2023]
Abstract
The novel coronavirus (COVID-19) has become a pandemic and the risk perception plays an important role in self-protection and spread prevention. This study attempts to explore the intrinsic characteristic of risk perception and the spatial distribution of it, which have not been involved in previous studies. To attach this purpose, data from questionnaire conducted in China and Korea (samples of 897 respondents in China and 340 respondents in South Korea) are used to produce risk perception of COVID- 19. Results reveal four principal findings: (1) risk perception of COVID-19 can be categorized into perceived social risk and perceived risk of being infected; (2) the internal differences are most pronounced in perceived risk of being infected about oneself in China, and in perceived social risk disorder about local community in South Korea; (3) the spatial distribution of risk perception is not consistent with that of epidemic severity, for high-risk perception spread out beyond the epicenter with different performance in the two categories; and (4) among the influence factors, trust in information, familiarity with epidemic situation, and interpersonal distance from suffers in the epicenter are found to have a significant influence on different aspects of risk perception. The theoretical and practical implications of this study enrich the understanding of risk perception of epidemic, and provide specific suggestions for preventing this ongoing epidemic spread across the population.
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Affiliation(s)
- Yangyang Chen
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Institute of Science and Development, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiahao Feng
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - An Chen
- Institute of Science and Development, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jae Eun Lee
- Department of Public Administration, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea
| | - Longtian An
- Department of Public Administration, Chungbuk National University, Cheongju, Chungbuk, 28644, South Korea
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28
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Lee JE, Kan P. Commentary: Safety, Efficacy, and Durability of Stent Plus Balloon-Assisted Coiling for the Treatment of Wide-Necked Intracranial Bifurcation Aneurysms. Neurosurgery 2021; 88:E415-E416. [PMID: 33575797 DOI: 10.1093/neuros/nyab006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 12/04/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jae Eun Lee
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Peter Kan
- Department of Neurosurgery, University of Texas Medical Branch, Galveston, Texas, USA
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Abstract
Cancer was thought to be caused solely by genetic mutations in oncogenes and tumor suppressor genes. In the last 35 years, however, epigenetic changes have been increasingly recognized as another primary driver of carcinogenesis and cancer progression. Epigenetic deregulation in cancer often includes mutations and/or aberrant expression of chromatin-modifying enzymes, their associated proteins, and even non-coding RNAs, which can alter chromatin structure and dynamics. This leads to changes in gene expression that ultimately contribute to the emergence and evolution of cancer cells. Studies of the deregulation of chromatin modifiers in cancer cells have reshaped the way we approach cancer and guided the development of novel anticancer therapeutics that target epigenetic factors. There remain, however, a number of unanswered questions in this field that are the focus of present research. Areas of particular interest include the actions of emerging classes of epigenetic regulators of carcinogenesis and the tumor microenvironment, as well as epigenetic tumor heterogeneity. In this review, we discuss past findings on epigenetic mechanisms of cancer, current trends in the field of cancer epigenetics, and the directions of future research that may lead to the identification of new prognostic markers for cancer and the development of more effective anticancer therapeutics.
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Affiliation(s)
- Jae Eun Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Mi-Young Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea; KAIST Institute for the BioCentury, Cancer Metastasis Control Center, Daejeon, Republic of Korea.
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30
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Uhm T, Lee JE, Yi S, Choi SW, Oh SJ, Kong SK, Lee IW, Lee HM. Predicting hearing recovery following treatment of idiopathic sudden sensorineural hearing loss with machine learning models. Am J Otolaryngol 2021; 42:102858. [PMID: 33445040 DOI: 10.1016/j.amjoto.2020.102858] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 10/15/2020] [Revised: 12/08/2020] [Accepted: 12/22/2020] [Indexed: 11/19/2022]
Abstract
PURPOSE Idiopathic sudden sensorineural hearing loss (ISSHL) is an emergency otological disease, and its definite prognostic factors remain unclear. This study applied machine learning methods to develop a new ISSHL prognosis prediction model. MATERIALS AND METHODS This retrospective study reviewed the medical data of 244 patients who underwent combined intratympanic and systemic steroid treatment for ISSHL at a tertiary referral center between January 2015 and October 2019. We used 35 variables to predict hearing recovery based on Siegel's criteria. In addition to performing an analysis based on the conventional logistic regression model, we developed prediction models with five machine learning methods: least absolute shrinkage and selection operator, decision tree, random forest (RF), support vector machine, and boosting. To compare the predictive ability of each model, the accuracy, precision, recall, F-score, and the area under the receiver operator characteristic curves (ROC-AUC) were calculated. RESULTS Former otological history, ear fullness, delay between symptom onset and treatment, delay between symptom onset and intratympanic steroid injection (ITSI), and initial hearing thresholds of the affected and unaffected ears differed significantly between the recovery and non-recovery groups. While the RF method (accuracy: 72.22%, ROC-AUC: 0.7445) achieved the highest predictive power, the other methods also featured relatively good predictive power. In the RF model, the following variables were identified to be important for hearing-recovery prediction: delay between symptom onset and ITSI or the initial treatment, initial hearing levels of the affected and non-affected ears, body mass index, and a previous history of hearing loss. CONCLUSIONS The machine learning models predictive of hearing recovery following treatment for ISSHL showed superior predictive power relative to the conventional logistic regression method, potentially allowing for better patient treatment outcomes.
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Affiliation(s)
- Taewoong Uhm
- Department of Statistics, Pukyong National University, Busan, Republic of Korea
| | - Jae Eun Lee
- Department of Statistics, Pukyong National University, Busan, Republic of Korea
| | - Seongbaek Yi
- Department of Statistics, Pukyong National University, Busan, Republic of Korea
| | - Sung Won Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University College of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Se Joon Oh
- Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University College of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Soo Keun Kong
- Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University College of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Il Woo Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University College of Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Hyun Min Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University College of Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.
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31
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Lee JE, Seo PH, Bak JG, Yun GS. A machine learning approach to identify the universality of solitary perturbations accompanying boundary bursts in magnetized toroidal plasmas. Sci Rep 2021; 11:3662. [PMID: 33574460 PMCID: PMC7878480 DOI: 10.1038/s41598-021-83192-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 01/28/2021] [Indexed: 11/09/2022] Open
Abstract
Experimental observations assisted by 2-D imaging diagnostics on the KSTAR tokamak show that a solitary perturbation (SP) emerges prior to a boundary burst of magnetized toroidal plasmas, which puts forward SP as a potential candidate for the burst trigger. We have constructed a machine learning (ML) model based on a convolutional deep neural network architecture for a statistical study to identify the SP as a boundary burst trigger. The ML model takes sequential signals detected from 19 toroidal Mirnov coils as input and predicts whether each temporal frame corresponds to an SP. We trained the network in a supervised manner on a training set consisting of real signals with manually annotated SP locations and synthetic burst signals. The trained model achieves high performances in various metrics on a test data set. We also demonstrated the reliability of the model by visualizing the discriminative parts of the input signals that the model recognizes. Finally, we applied the trained model to new data from KSTAR experiments, which were never seen during training, and confirmed that the large burst at the plasma boundary that can fatally damage the fusion device always involves the emergence of SP. This result suggests that the SP is a key to understanding and controlling of the boundary burst in magnetized toroidal plasmas.
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Affiliation(s)
- J E Lee
- Pohang University of Science and Technology, Pohang, 37673, Korea
| | - P H Seo
- Pohang University of Science and Technology, Pohang, 37673, Korea
| | - J G Bak
- National Fusion Research Institute, Daejeon, 34133, Korea
| | - G S Yun
- Pohang University of Science and Technology, Pohang, 37673, Korea.
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32
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Traister A, Patel R, Huang A, Patel S, Plakhotnik J, Lee JE, Medina MG, Welsh C, Ruparel P, Zhang L, Friedberg M, Maynes J, Coles J. Correction: Cardiac regenerative capacity is age- and disease-dependent in childhood heart disease. PLoS One 2021; 16:e0245808. [PMID: 33471867 PMCID: PMC7816987 DOI: 10.1371/journal.pone.0245808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Ju YJ, Lee JE, Lee SY. Associations between Chewing Difficulty, Subjective Cognitive Decline, and Related Functional Difficulties among Older People without Dementia: Focus on Body Mass Index. J Nutr Health Aging 2021; 25:347-355. [PMID: 33575727 DOI: 10.1007/s12603-020-1521-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE This study aimed to determine whether chewing difficulty is associated with subjective cognitive decline (SCD) and related functional difficulties by body mass index. DESIGN A population-based cross-sectional study. SETTING AND PARTICIPANTS A nationwide sample of 54,004 individuals aged ≥65 years from the 2018 Korea Community Health Survey. MEASUREMENTS SCD and SCD-related functional difficulties were measured using the cognitive decline module of the Behavioral Risk Factor Surveillance System. Chewing difficulty was assessed based on a self-report questionnaire from an oral health-related behaviors interview survey. BMI was calculated from objective values by measuring height and weight through a physical meter. RESULTS Among the 54,004 individuals, the prevalence of SCD in underweight, overweight, and obesity group was 33.6% (n = 806), 30.3% (n = 9,691), and 28.7% (n=5,632) respectively. Chewing difficulty was associated with SCD and SCD-related functional difficulties. This association was more pronounced in underweight (BMI: <18.5 kg/m2) people [underweight: (odds ratio [OR] = 1.68, 95% confidence interval [CI] 1.48-1.92); normal weight: OR = 1.13, 95% CI 1.04-1.22; obese: OR = 1.15, 95% CI 1.05-1.27]. Similar trends were demonstrated for SCD-related functional difficulties (underweight: OR = 1.53, 95% CI 1.17-2.01; normal weight: OR = 1.36, 95% CI 1.15-1.63; obese: OR = 1.50, 95% CI 1.22-1.86). CONCLUSIONS Chewing difficulty was associated with SCD and SCD-related functional difficulties in older people. Our results suggest that underweight status may play roles in the associations between chewing difficulty and SCD and SCD-related functional difficulties.
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Affiliation(s)
- Y J Ju
- Soon Young Lee, MD, PhD, Department of Preventive Medicine and Public Health, Ajou University School of Medicine 206 World cup-ro, Yeongtong-gu, Suwon-si Gyeonggi-do 16499, Republic of Korea, T: 82-31-219-5301, F: 82-31-219-5084, E:
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34
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Tan H, How AX, Wang XX, Lee JE, Lim WS. Letter to the Editor: COVID-19 and Persons with Dementia in Acute Care Settings: How to "EVADE" Challenging Behaviors. J Frailty Aging 2020; 10:73-74. [PMID: 33331627 PMCID: PMC7539550 DOI: 10.14283/jfa.2020.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The double whammy of dementia and coronavirus disease 2019 (COVID-19) has raised huge concerns for healthcare systems which are already struggling to cope with care demands of persons with dementia (PWD) in non-pandemic times (1). PWD who are admitted to acute care services are particularly vulnerable to behavioural changes and adverse outcomes from delirium (2, 3). During the COVID-19 period, ward relocation is frequently encountered due to COVID-19 screening and segregation; this constant changing of environment and care teams puts PWD at risk of behavioural exacerbations. This is aggravated by restrictive visitor policies in hospitals, depriving PWD of the reassuring presence of family members. Not surprisingly, caring for persons with dementia (PWD) with behavioral issues in acute care settings has become extremely challenging.
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Affiliation(s)
- H Tan
- Hongyun Tan, Woodland Health Campus, Nursing Service, Level 5, Tower E, 2 Yishun Central 2, Singapore 768024, Phone: +65-97688748 ,
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35
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Lee JE, Mohanty A, Albuquerque FC, Couldwell WT, Levy EI, Benzel EC, Wakhloo AK, Hirsch JA, Fiorella D, Fargen KM, Burkhardt JK, Srinivasan VM, Johnson J, Mokin M, Kan P. Trends in academic productivity in the COVID-19 era: analysis of neurosurgical, stroke neurology, and neurointerventional literature. J Neurointerv Surg 2020; 12:1049-1052. [PMID: 32998982 PMCID: PMC7528313 DOI: 10.1136/neurintsurg-2020-016710] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/05/2020] [Accepted: 09/15/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND Academic physicians aim to provide clinical and surgical care to their patients while actively contributing to a growing body of scientific literature. The coronavirus disease 2019 (COVID-19) pandemic has resulted in procedural-based specialties across the United States witnessing a sharp decline in their clinical volume and surgical cases. OBJECTIVE To assess the impact of COVID-19 on neurosurgical, stroke neurology, and neurointerventional academic productivity. METHODS The study compared the neurosurgical, stroke neurology, and neurointerventional academic output during the pandemic lockdown with the same time period in previous years. Editors from a sample of neurosurgical, stroke neurology, and neurointerventional journals provided the total number of original manuscript submissions, broken down by months, from the year 2016 to 2020. Manuscript submission was used as a surrogate metric for academic productivity. RESULTS 8 journals were represented. The aggregated data from all eight journals as a whole showed that a combined average increase of 42.3% was observed on original submissions for 2020. As the average yearly percent increase using the 2016-2019 data for each journal exhibited a combined average increase of 11.2%, the rise in the yearly increase for 2020 in comparison was nearly fourfold. For the same journals in the same time period, the average percent of COVID-19 related publications from January to June of 2020 was 6.87%. CONCLUSION There was a momentous increase in the number of original submissions for the year 2020, and its effects were uniformly experienced across all of our represented journals.
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Affiliation(s)
- Jae Eun Lee
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Alina Mohanty
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Felipe C Albuquerque
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona, USA
| | | | - Elad I Levy
- Neurosurgery, Jacobs School of Medicine University at Buffalo, Buffalo, New York, USA
- Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA
| | - Edward C Benzel
- Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ajay K Wakhloo
- Neurointerventional Radiology, Lahey Hospital and Medical Center, Burlington, Massachusetts, USA
| | - Joshua A Hirsch
- NeuroEndovascular Program, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - David Fiorella
- Department of Neurosurgery, Stony Brook University, Stony Brook, New York, USA
- Department of Radiology, Stony Brook University, Stony Brook, New York, USA
| | - Kyle M Fargen
- Neurological Surgery and Radiology, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Jan-Karl Burkhardt
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
- Department of Neurosurgery, Texas Children's Hospital, Houston, Texas, USA
| | | | - Jeremiah Johnson
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Maxim Mokin
- Department of Neurosurgery, University of South Florida, Tampa, Florida, USA
| | - Peter Kan
- Department of Neurosurgery, University of Texas Medical Branch, Galveston, Texas, USA
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Shin SH, Kim I, Lee JE, Lee M, Park JW. Loss of EGR3 is an independent risk factor for metastatic progression in prostate cancer. Oncogene 2020; 39:5839-5854. [PMID: 32796959 DOI: 10.1038/s41388-020-01418-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/29/2020] [Accepted: 08/04/2020] [Indexed: 12/14/2022]
Abstract
Identification of pro-metastatic genomic alterations is urgently needed to help understand and prevent the fatal course of prostate cancer. Here, we found that the transcription factor EGR3, located at chromosome 8p21.3, is a critical metastasis suppressor. Aberrant deletion of EGR3 was found in up to 59.76% (deep deletions, 16.87%; shallow deletions, 42.89%) of prostate cancer patients. In informatics analysis, EGR3 loss was associated with prostate cancer progression and low survival rates. EGR3 expression inversely correlated with the expressions of epithelial-to-mesenchymal transition (EMT) and metastasis-related gene sets in prostate cancer tissues. In prostate cancer cells, EGR3 blocked the EMT process and suppressed cell migration and invasion. In a mouse model for cancer metastasis, EGR3 overexpression significantly suppressed bone metastases of PC3 and 22Rv1 prostate cancer cells. Mechanistically, EGR3 transcriptionally activated ZFP36, GADD45B, and SOCS3 genes by directly binding to their promoter regions. The EMT-inhibitory and tumor-suppressive roles of the EGR3 downstream genes were identified through in vitro and in silico analyses. Together, our results showed that EGR3 may be a biomarker to predict clinical outcomes and that it plays an important role in the metastatic progression of prostate cancer.
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Affiliation(s)
- Seung-Hyun Shin
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.,Department of Pharmacology, Seoul National University College of Medicine, Seoul, South Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Iljin Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.,Department of Pharmacology, Seoul National University College of Medicine, Seoul, South Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jae Eun Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.,Department of Pharmacology, Seoul National University College of Medicine, Seoul, South Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Mingyu Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea.,Department of Pharmacology, Seoul National University College of Medicine, Seoul, South Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, South Korea.,Obstructive Upper airway Research (OUaR) Laboratory, Seoul National University College of Medicine, Seoul, South Korea
| | - Jong-Wan Park
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, South Korea. .,Department of Pharmacology, Seoul National University College of Medicine, Seoul, South Korea. .,Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea. .,Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, South Korea.
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Lee JE, Lim CK, Park HJ, Song H, Choi SY, Lee DS. ZnO-CuO Core-Hollow Cube Nanostructures for Highly Sensitive Acetone Gas Sensors at the ppb Level. ACS Appl Mater Interfaces 2020; 12:35688-35697. [PMID: 32618181 DOI: 10.1021/acsami.0c08593] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
This paper presents a ZnO-CuO p-n heterojunction chemiresistive sensor that comprises CuO hollow nanocubes attached to ZnO spherical cores as active materials. These ZnO-CuO core-hollow cube nanostructures exhibit a remarkable response of 11.14 at 1 ppm acetone and 200 °C, which is a superior result to those reported by other metal-oxide-based sensors. The response can be measured up to 40 ppb, and the limit of detection is estimated as 9 ppb. ZnO-CuO core-hollow cube nanostructures also present high selectivity toward acetone against other volatile organic compounds and demonstrate excellent stability for up to 40 days. The outstanding gas-sensing performance of the developed nanocubes is attributed to their uniform and unique morphology. Their core-shell-like structures allow the main charge transfer pathways to pass the interparticle p-p junctions, and the p-n junctions in each particle increase the sensitivity of the reactions to gas molecules. The small grain size and high surface area of each domain also enhance the surface gas adsorption.
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Affiliation(s)
- Jae Eun Lee
- Graphene/2D Materials Research Center, Center for Advanced Materials Discovery towards 3D Displays, School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Chan Kyu Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hyung Ju Park
- Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Hyunjoon Song
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Sung-Yool Choi
- Graphene/2D Materials Research Center, Center for Advanced Materials Discovery towards 3D Displays, School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dae-Sik Lee
- Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
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Jarvis SE, Lee JE, Jewlal E, Barr K, Kelly GM, Laird DW, Willmore KE. Effects of reduced connexin43 function on skull development in the Cx43 I130T/+ mutant mouse that models oculodentodigital dysplasia. Bone 2020; 136:115365. [PMID: 32320893 DOI: 10.1016/j.bone.2020.115365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/17/2020] [Accepted: 04/14/2020] [Indexed: 12/21/2022]
Abstract
Oculodentodigital dysplasia (ODDD) is a disease caused by mutations in the GJA1 gene that encodes the gap-junctional protein connexin43 (Cx43). ODDD affects multiple organs, but craniofacial anomalies are typical. However, details on the timing of phenotypic presentation of these abnormalities and their correspondence with potential cellular changes are incomplete. Here, we perform the first assessment of the development of the ODDD craniofacial phenotype in the Cx43I130T/+ mouse model and show that the phenotypic features commonly found in patients with the disorder arise in mice between E17.5 and birth and become more profound with age. Using mice heterozygous for the I130T mutation of Gja1, we provide a detailed analysis of the craniofacial phenotype in this ODDD model using shape analyses based on micro-CT images. Results show that in addition to differences in facial bone morphology, there are significant shape differences in the cranial base. Mutant mice display delayed ossification at E17.5 and birth, particularly in bones of the face and cranial vault but ossification is normal at three months. Our immunohistochemical analyses of the palatine bone indicate that osteoblast differentiation is delayed in Cx43I130T/+ mice compared to their wildtype littermates, which likely contributes to the phenotypic variations observed in the facial bones. Our histological and immunohistochemical analyses of the synchondroses of the cranial base show no differences in molecular indicators of chondrocyte differentiation in mutant mice, suggesting that the differences to cranial base morphology displayed by Cx43I130T/+ mice are not due to differences in chondrocyte proliferation or differentiation. Together, our findings suggest that Cx43I130T/+ mice represent a surrogate model to not only inform about the craniofacial anomalies found in ODDD patients but also to show that reduced Cx43 function leads to phenotypic changes that are largely due to osteoblast defects.
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Affiliation(s)
- Sommer E Jarvis
- Department of Biology, Faculty of Science, The University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada
| | - Jae Eun Lee
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada
| | - Elizabeth Jewlal
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada
| | - Kevin Barr
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada
| | - Gregory M Kelly
- Department of Biology, Faculty of Science, The University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada
| | - Dale W Laird
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada
| | - Katherine E Willmore
- Department of Anatomy & Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada.
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Abstract
Regulation of target proteins by the ubiquitin-proteasome system (UPS) is common in a wide range of cellular events, including transcriptional regulation, cell cycle progression, differentiation, and tumorigenesis. Ubiquitin-specific protease 7 (USP7) has been implicated in tumor development and metastasis in various malignancies through the regulation of target protein stability. In this study, we found that the enhancer of zeste homolog 2 (EZH2), which catalyzes the methylation at lysine 27 of histone H3, is a target of USP7 and is stabilized by USP7-mediated deubiquitination. In prostate cancer cells, the transcriptional repression function of EZH2 was inhibited by USP7-knockdown. Furthermore, ectopic introduction of EZH2 restored the cell migration, invasion, and sphere-forming potential of prostate cancer cells, which had been decreased by USP7-knockdown. Moreover, combined treatment with the USP7-specific inhibitor P5091 and EZH2 inhibitors, such as GSK126, EPZ6438, and DZNep, induced synergistic inhibitory effects on cell migration, invasion, and sphere-forming potential in prostate cancer cells. Collectively, our findings revealed that the promotion of the malignancy-associated characteristics of prostate cancer cells by USP7 was in part due to EZH2 stabilization. Thus, we suggest that simultaneous treatment with a USP7 inhibitor and an EZH2 inhibitor could be a rational strategy for treating EZH2-dependent cancers.
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Affiliation(s)
- Jae Eun Lee
- Inha University, Department of Biological Sciences, Incheon 22212,
South Korea
| | - Chan Mi Park
- Inha University, Department of Biological Sciences, Incheon 22212,
South Korea
| | - Jung Hwa Kim
- Inha University, Department of Biological Sciences, Incheon 22212,
South Korea
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Park CM, Lee JE, Kim JH. BAP1 functions as a tumor promoter in prostate cancer cells through EMT regulation. Genet Mol Biol 2020; 43:e20190328. [PMID: 32422649 PMCID: PMC7323895 DOI: 10.1590/1678-4685-gmb-2019-0328] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 09/29/2019] [Accepted: 03/10/2020] [Indexed: 12/30/2022] Open
Abstract
BRCA1-associated protein 1 (BAP1) is a deubiquitinating enzyme that has long been
considered to be a tumor suppressor in various tumors, including renal cell
carcinoma, uveal melanoma, mesothelioma, and cutaneous melanoma. However, the
involvement of BAP1 in the progression of prostate cancer has not been studied
until recently. Herein, we investigated the tumor promoting function of BAP1 in
the context of prostate cancer. Analysis of The Cancer Genome Atlas (TCGA) data
set showed that prostate cancer patients express high levels of BAP1 mRNA. High
BAP1 expression is inversely correlated with disease-free survival in patients
with prostate cancer. Among the prostate cell lines tested, BAP1 expression was
high in tumorigenic and metastatic cell lines, but was low in normal prostate
cell line. Knockdown of BAP1 in PC3 or DU145 cells induced
mesenchymal-to-epithelial transition (MET). Further, BAP1-knockdown resulted in
decreased migration and invasion of PC3 and DU145 cells. Conversely,
overexpression of BAP1 in RWPE1, a normal prostate cell line, induced the
migratory and invasive properties. Collectively, our findings identified that
BAP1 has a tumor promoting function in prostate cancer cells, and suggest that
BAP1 can serve as a potential therapeutic target for prostate cancer.
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Affiliation(s)
- Chan Mi Park
- Department of Biological Sciences, Inha University, Incheon 22212, South Korea
| | - Jae Eun Lee
- Department of Biological Sciences, Inha University, Incheon 22212, South Korea
| | - Jung Hwa Kim
- Department of Biological Sciences, Inha University, Incheon 22212, South Korea
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Lee KT, Jung JH, Mun GH, Pyon JK, Bang SI, Lee JE, Nam SJ. Influence of complications following total mastectomy and immediate reconstruction on breast cancer recurrence. Br J Surg 2020; 107:1154-1162. [DOI: 10.1002/bjs.11572] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 11/19/2019] [Accepted: 02/04/2020] [Indexed: 02/02/2023]
Abstract
Abstract
Background
Immediate breast reconstruction is safe from an oncological perspective, but the relatively high rate of postoperative complications raises oncological concerns. The present study aimed to evaluate the potential influence of postoperative complications after immediate breast reconstruction on breast cancer recurrence and survival.
Methods
Patients with breast cancer who had total mastectomy and immediate reconstruction between 2008 and 2013 were followed for at least 5 years. The impact of postoperative complications on oncological outcomes was assessed using multivariable Cox regression analyses.
Results
In total, 438 patients with a median follow-up of 82 months were analysed. Five-year local recurrence-free, disease-free and overall survival rates were 95·4, 93·1 and 98·4 per cent respectively. Postoperative complications developed in the operated breast in 120 patients (27·4 per cent) and at other sites (flap donor) in 30 patients (6·8 per cent). Development of breast complications was associated with significantly increased rate of recurrence compared with no complications (16·7 versus 5·9 per cent; P = 0·002). In multivariable analysis, patients with breast complications had significantly worse disease-free survival than those with no complications (hazard ratio (HR) 2·25; P = 0·015). This remained significant in patients who received adjuvant therapy without delay (8 weeks or less after surgery) (HR 2·45; P = 0·034).
Conclusion
Development of postoperative complications in the breast can have a negative impact on survival and recurrence after immediate reconstruction.
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Affiliation(s)
- K-T Lee
- Departments of Plastic Surgery, Seoul, South Korea
| | - J H Jung
- Departments of Plastic Surgery, Seoul, South Korea
| | - G-H Mun
- Departments of Plastic Surgery, Seoul, South Korea
| | - J K Pyon
- Departments of Plastic Surgery, Seoul, South Korea
| | - S I Bang
- Departments of Plastic Surgery, Seoul, South Korea
| | - J E Lee
- Departments of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - S J Nam
- Departments of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Affiliation(s)
| | | | - Mimi C Tan
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, Texas.
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Lin T, Sun L, Lee JE, Lee JB, Kim SY, Jin DI. Changes of histone H3 lysine 23 acetylation and methylation in porcine somatic cells, oocytes and preimplantation embryos. Theriogenology 2020; 148:162-173. [PMID: 32182524 DOI: 10.1016/j.theriogenology.2020.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 03/06/2020] [Accepted: 03/08/2020] [Indexed: 01/09/2023]
Abstract
Histone modifications play important roles in regulating the expression of developmental genes during preimplantation embryonic development. Here, we analyzed the temporal and spatial distribution of the acetylation and mono-, di- and tri-methylations of noncanonical histone H3 at lysine 23 (H3K23ac, H3K23me1, H3K23me2 and H3K23me3) during porcine oocyte maturation and pre-implantation development, as well as in porcine fetal fibroblasts. H3K23ac, -me1, -me2 and -me3 were enhanced in EdU-positive fetal fibroblasts (S-phase) compared to EdU-negative fetal fibroblasts (G1 and/or G2-phase). More than 91% of the DNA replication foci were well colocalized with H3K23 methylation sites in porcine fetal fibroblasts. H3K23ac and -me3 were detectable through oocyte meiotic resumption. After parthenogenic activation (PA), H3K23me3 was very weakly detected in the pronuclei of zygotes and the nuclei of blastocysts. After in vitro fertilization (IVF), no H3K23me3 signal was observed in the nuclei of IVF-derived embryos, with the exception of the residual polar bodies. In contrast, H3K23ac signals were clearly detected in the nuclei of PA- and IVF-derived blastocysts. The RNA polymerase inhibitor, actinomycin D, reduced the H3K23ac signal in porcine blastocysts. These findings may serve as a valuable reference for further studies of how H3K23 modifications contribute to the regulation of oocyte maturation and early embryonic development in mammals.
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Affiliation(s)
- Tao Lin
- Division of Animal & Dairy Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Ling Sun
- Division of Animal & Dairy Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Jae Eun Lee
- Division of Animal & Dairy Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Joo Bin Lee
- Division of Animal & Dairy Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - So Yeon Kim
- Division of Animal & Dairy Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Dong Il Jin
- Division of Animal & Dairy Science, Chungnam National University, Daejeon, 34134, Republic of Korea.
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Choi YR, Kim KS, Bandu R, Kim H, Lee JE, Shin B, Cho YJ, Park JM, Lee H, Kim KP. Liquid Chromatography/Electrospray Ionization Tandem Mass Spectrometry‐based Structural Analysis of Deacylated Lipooligosaccharides From Escherichia coli. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.11993] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yu Ri Choi
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient MaterialsKyung Hee University Yongin 17104 Republic of Korea
| | - Kwang Sung Kim
- R&D center, EyeGene Goyang 10551 Republic of Korea
- Department of Integrated Bioscience and BiotechnologySejong University Seoul 05006 Republic of Korea
| | - Raju Bandu
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient MaterialsKyung Hee University Yongin 17104 Republic of Korea
| | - Hyoseon Kim
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient MaterialsKyung Hee University Yongin 17104 Republic of Korea
| | - Jae Eun Lee
- R&D center, EyeGene Goyang 10551 Republic of Korea
| | | | - Yang Je Cho
- R&D center, EyeGene Goyang 10551 Republic of Korea
| | - Jong Moon Park
- College of PharmacyGachon University Incheon 21936 Republic of Korea
| | - Hookeun Lee
- College of PharmacyGachon University Incheon 21936 Republic of Korea
| | - Kwang Pyo Kim
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient MaterialsKyung Hee University Yongin 17104 Republic of Korea
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Dai W, Liu H, Liu Y, Xu X, Qian D, Luo S, Cho E, Zhu D, Amos CI, Fang S, Lee JE, Li X, Nan H, Li C, Wei Q. Genetic variants in the folate metabolic pathway genes predict cutaneous melanoma-specific survival. Br J Dermatol 2020; 183:719-728. [PMID: 31955403 DOI: 10.1111/bjd.18878] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND Folate metabolism plays an important role in DNA methylation and nucleic acid synthesis and thus may function as a regulatory factor in cancer development. Genome-wide association studies (GWASs) have identified some single-nucleotide polymorphisms (SNPs) associated with cutaneous melanoma-specific survival (CMSS), but no SNPs were found in genes involved in the folate metabolic pathway. OBJECTIVES To examine associations between SNPs in folate metabolic pathway genes and CMSS. METHODS We comprehensively evaluated 2645 (422 genotyped and 2223 imputed) common SNPs in folate metabolic pathway genes from a published GWAS of 858 patients from The University of Texas MD Anderson Cancer Center and performed the validation in another GWAS of 409 patients from the Nurses' Health Study and Health Professionals Follow-up Study, in which 95/858 (11·1%) and 48/409 (11·7%) patients died of cutaneous melanoma, respectively. RESULTS We identified two independent SNPs (MTHFD1 rs1950902 G>A and ALPL rs10917006 C>T) to be associated with CMSS in both datasets, and their meta-analysis yielded an allelic hazards ratio of 1·75 (95% confidence interval 1·32-2·32, P = 9·96 × 10-5 ) and 2·05 (1·39-3·01, P = 2·84 × 10-4 ), respectively. The genotype-phenotype correlation analyses provided additional support for the biological plausibility of these two variants' roles in tumour progression, suggesting that variation in SNP-related mRNA expression levels is likely to be the mechanism underlying the observed associations with CMSS. CONCLUSIONS Two possibly functional genetic variants, MTHFD1 rs1950902 and ALPL rs10917006, were likely to be independently or jointly associated with CMSS, which may add to personalized treatment in the future, once further validated. What is already known about this topic? Existing data show that survival rates vary among patients with melanoma with similar clinical characteristics; therefore, it is necessary to identify additional complementary biomarkers for melanoma-specific prognosis. A hypothesis-driven approach, by pooling the effects of single-nucleotide polymorphisms (SNPs) in a specific biological pathway as genetic risk scores, may provide a prognostic utility, and genetic variants of genes in folate metabolism have been reported to be associated with cancer risk. What does this study add? Two genetic variants in the folate metabolic pathway genes, MTHFD1 rs1950902 and ALPL rs10917006, are significantly associated with cutaneous melanoma-specific survival (CMSS). What is the translational message? The identification of genetic variants will make a risk-prediction model possible for CMSS. The SNPs in the folate metabolic pathway genes, once validated in larger studies, may be useful in the personalized management and treatment of patients with cutaneous melanoma.
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Affiliation(s)
- W Dai
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.,Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - H Liu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - Y Liu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - X Xu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - D Qian
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - S Luo
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC, 27710, USA
| | - E Cho
- Department of Dermatology, Warren Alpert Medical School, Brown University, Providence, RI, 02912, USA.,Department of Epidemiology, Brown University School of Public Health, Providence, RI, 02912, USA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - D Zhu
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, 77030, USA
| | - C I Amos
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, 77030, USA
| | - S Fang
- Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, 77030, USA
| | - J E Lee
- Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, 77030, USA
| | - X Li
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA.,Department of Epidemiology, Fairbanks School of Public Health, Indiana University, Indianapolis, IN, 46202, USA
| | - H Nan
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA.,Department of Epidemiology, Fairbanks School of Public Health, Indiana University, Indianapolis, IN, 46202, USA
| | - C Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Q Wei
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, 27710, USA
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Lee S, Lee JE, Kang JS, Lee SO, Lee SH. Long-term performance of the IGRA to predict and prevent active tuberculosis development in HIV-infected patients. Int J Tuberc Lung Dis 2020; 23:422-427. [PMID: 31064620 DOI: 10.5588/ijtld.18.0198] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
<sec id="st1"> <title>OBJECTIVE</title> To estimate the long-term performance of the interferon-gamma release assay (IGRA) in predicting active tuberculosis (ATB) development among human immunodeficiency virus (HIV) infected patients in an intermediate TB burden country. </sec> <sec id="st2"> <title>DESIGN</title> A retrospective cohort study was conducted. HIV-infected patients with 1 IGRA result but no current or previous ATB who had been retained in care for 1 year were enrolled and observed for ATB development from 2006 to 2016. </sec> <sec id="st3"> <title>RESULTS</title> Sixty-two IGRA-positive and 354 IGRA-negative patients were observed for a median period of 4.03 years. ATB incidence in IGRA-positive vs. negative patients was respectively 15.24/1000 person-years (py) (95%CI 4.15-39.02) vs. 0.67/1000 py (95%CI 0.01-3.68) (P = 0.001). The sensitivity, specificity and positive and negative predictive values of the IGRA were respectively 80.0% (28.4-99.5%), 85.9% (82.1-89.1%), 6.5% (4.0-10.2%) and 99.7% (98.4-99.9%). Among the 62 IGRA-positive patients, 25 were treated for latent tuberculous infection (LTBI) and 37 were not. Patients with LTBI treatment did not develop ATB, while four cases of ATB occurred among patients without LTBI treatment. Among the 257 IGRA-negative patients who received a follow-up IGRA, 34 (12.9%) patients converted to positive. No ATB developed in IGRA converters. </sec> <sec id="st4"> <title>CONCLUSION</title> Screening for LTBI using IGRAs and LTBI treatment can be useful to prevent ATB in an intermediate TB burden country. </sec>.
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Affiliation(s)
- S Lee
- Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - J E Lee
- Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - J S Kang
- Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - S O Lee
- Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - S H Lee
- Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
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Sung SY, Rhee YW, Lee JE, Choi JN. Dual pathways of emotional competence towards incremental and radical creativity: resource caravans through feedback-seeking frequency and breadth. European Journal of Work and Organizational Psychology 2020. [DOI: 10.1080/1359432x.2020.1718654] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Young Won Rhee
- College of Business Administration, Seoul National University, Seoul, South Korea
| | - Jae Eun Lee
- Hana Financial Group, Hana Institue of Finance, Seoul, South Korea
| | - Jin Nam Choi
- College of Business Administration, Seoul National University, Seoul, South Korea
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Park YH, Lee SJ, Cho EY, La Choi Y, Lee JE, Nam SJ, Yang JH, Shin JH, Ko EY, Han BK, Ahn JS, Im YH. Clinical relevance of TNM staging system according to breast cancer subtypes. Ann Oncol 2019; 30:2011. [PMID: 31408085 DOI: 10.1093/annonc/mdz223] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023] Open
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Lee JE, Kim N, Yeo JY, Seo DG, Kim S, Lee JS, Hwang KW, Park SY. Anti-Amyloidogenic Effects of Asarone Derivatives From Perilla frutescens Leaves against Beta-Amyloid Aggregation and Nitric Oxide Production. Molecules 2019; 24:molecules24234297. [PMID: 31775356 PMCID: PMC6930631 DOI: 10.3390/molecules24234297] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 11/16/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive, neurodegenerative brain disorder associated with loss of memory and cognitive function. Beta-amyloid (Aβ) aggregates, in particular, are known to be highly neurotoxic and lead to neurodegeneration. Therefore, blockade or reduction of Aβ aggregation is a promising therapeutic approach in AD. We have previously reported an inhibitory effect of the methanol extract of Perilla frutescens (L.) Britton (Lamiaceae) and its hexane fraction on Aβ aggregation. Here, the hexane fraction of P. frutescens was subjected to diverse column chromatography based on activity-guided isolation methodology. This approach identified five asarone derivatives including 2,3-dimethoxy-5-(1E)-1-propen-1-yl-phenol (1), β-asarone (2), 3-(2,4,5-trimethoxyphenyl)-(2E)-2-propen-1-ol (3), asaronealdehyde (4), and α-asarone (5). All five asarone derivatives efficiently reduced the aggregation of Aβ and disaggregated preformed Aβ aggregates in a dose-dependent manner as determined by a Thioflavin T (ThT) fluorescence assay. Furthermore, asarone derivatives protected PC12 cells from Aβ aggregate-induced toxicity by reducing the aggregation of Aβ, and significantly reduced NO production from LPS-stimulated BV2 microglial cells. Taken together, these results suggest that asarone derivatives derived from P. frutescens are neuroprotective and have the prophylactic and therapeutic potential in AD.
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Affiliation(s)
- Jae Eun Lee
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 31116, Korea; (J.E.L.); (N.K.); (J.Y.Y.); (D.-G.S.); (S.K.); (J.-S.L.)
| | - Nayeon Kim
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 31116, Korea; (J.E.L.); (N.K.); (J.Y.Y.); (D.-G.S.); (S.K.); (J.-S.L.)
| | - Ji Yun Yeo
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 31116, Korea; (J.E.L.); (N.K.); (J.Y.Y.); (D.-G.S.); (S.K.); (J.-S.L.)
| | - Dae-Gun Seo
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 31116, Korea; (J.E.L.); (N.K.); (J.Y.Y.); (D.-G.S.); (S.K.); (J.-S.L.)
| | - Sunggun Kim
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 31116, Korea; (J.E.L.); (N.K.); (J.Y.Y.); (D.-G.S.); (S.K.); (J.-S.L.)
| | - Jae-Sun Lee
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 31116, Korea; (J.E.L.); (N.K.); (J.Y.Y.); (D.-G.S.); (S.K.); (J.-S.L.)
| | - Kwang Woo Hwang
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea;
| | - So-Young Park
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam 31116, Korea; (J.E.L.); (N.K.); (J.Y.Y.); (D.-G.S.); (S.K.); (J.-S.L.)
- Correspondence: ; Tel.: +82-41-550-1434; Fax: +82-41-559-7899
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Park J, Shim JK, Eun Lee J, Jin Yoon S, Yoo J, Hyung Moon J, Hyun Kim E, Hee Chang J, Kang SG. ANGI-01. IDENTIFICATION OF INVASION-DETERMINISTIC TRANSCRIPTION FACTORS IN GLIOBLASTOMA USING INTEGRATIVE TRANSCRIPTOME ANALYSIS. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz175.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Glioblastoma (GBM) is one of the most lethal human tumors with a highly infiltrative phenotype. Although invasiveness is related to poor prognosis, no therapeutic intervention targeting invasion is available for treatment of GBM patient, partially due to the diversity and redundancy of invasion machinery genes. In this regard, additional identification of deterministic and causative targets for invasion is required. Invasiveness of GBM patients and matched tumorspheres (TSs) was quantified using MR images and collagen-based 3D invasion assays, respectively. Transcriptome of GBM samples were obtained using microarrays. The knockdown effects of invasion-deterministic transcription factors (TFs) were evaluated using western blot and mouse orthotopic xenograft model. This study is aimed to identify novel transcriptional regulatory networks, which can collectively modulate invasion-involved genes in GBM. After classification of 23 GBM patient-derived TSs into low and high invasion groups, we applied single sample gene set enrichment analysis using TF target gene sets. According to enrichment scores, TFs responsible for low (PCBP1) and high (STAT3 and SRF) invasiveness were identified. Consistently with computational prediction, knockdown of PCBP1 significantly increased invasion area, whereas knockdown of STAT3 or SRF significantly suppressed invasive properties in all tested TSs. Notably, MR images showed coherent patterns with invasion of originated TS, and high invasiveness was associated with poor prognosis. In addition, mouse orthotopic xenograft model using TSs with down-regulated STAT3 or SRF showed significantly prolonged survival time compared to control. We identified invasion-deterministic TFs in glioblastoma using integrative transcriptome analysis. Owing to relationship among these transcriptional regulatory networks, invasive phenotype, and prognosis, we suggest that these TFs as novel drug targets for GBM.
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Affiliation(s)
- Junseong Park
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin-Kyoung Shim
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Eun Lee
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seon Jin Yoon
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jihwan Yoo
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ju Hyung Moon
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eui Hyun Kim
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jong Hee Chang
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seok-Gu Kang
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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