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Kim AR, Park AY, Song S, Hong JH, Kim K. A Microlearning-Based Self-directed Learning Chatbot on Medication Administration for New Nurses: A Feasibility Study. Comput Inform Nurs 2024:00024665-990000000-00173. [PMID: 38453464 DOI: 10.1097/cin.0000000000001119] [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: 03/09/2024]
Abstract
New nurses must acquire accurate knowledge of medication administration, as it directly affects patient safety. This study aimed to develop a microlearning-based self-directed learning chatbot on medication administration for novice nurses. Furthermore, the study had the objective of evaluating the chatbot feasibility. The chatbot covered two main topics: medication administration processes and drug-specific management, along with 21 subtopics. Fifty-eight newly hired nurses on standby were asked to use the chatbot over a 2-week period. Moreover, we evaluated the chatbot's feasibility through a survey that gauged changes in their confidence in medication administration knowledge, intrinsic learning motivation, satisfaction with the chatbot's learning content, and usability. After using the chatbot, participants' confidence in medication administration knowledge significantly improved in all topics (P < .001) except "Understanding a concept of 5Right" (P = .077). Their intrinsic learning motivation, satisfaction with the learning content, and usability scored above 5 out of 7 in all subdomains, except for pressure/tension (mean, 2.12; median, 1.90). They scored highest on ease of learning (mean, 6.69; median, 7.00). A microlearning-based chatbot can help new nurses improve their knowledge of medication administration through self-directed learning.
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Affiliation(s)
- Ae Ran Kim
- Author Affiliations: Department of Nursing, Samsung Medical Center (Drs A. R. Kim, Hong, and K. Kim, and Mss Park and Song); and Graduate School of Clinical Nursing Science, Sungkyunkwan University (Drs Hong and K. Kim), Seoul, Korea
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Lee D, Lee PCW, Hong JH. UBA6 Inhibition Accelerates Lysosomal TRPML1 Depletion and Exosomal Secretion in Lung Cancer Cells. Int J Mol Sci 2024; 25:2843. [PMID: 38474091 PMCID: PMC10932338 DOI: 10.3390/ijms25052843] [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: 12/14/2023] [Revised: 02/25/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Ubiquitin-like modifier-activating enzyme 6 (UBA6) is a member of the E1 enzyme family, which initiates the ubiquitin-proteasome system (UPS). The UPS plays critical roles not only in protein degradation but also in various cellular functions, including neuronal signaling, myocardial remodeling, immune cell differentiation, and cancer development. However, the specific role of UBA6 in cellular functions is not fully elucidated in comparison with the roles of the UPS. It has been known that the E1 enzyme is associated with the motility of cancer cells. In this study, we verified the physiological roles of UBA6 in lung cancer cells through gene-silencing siRNA targeting UBA6 (siUBA6). The siUBA6 treatment attenuated the migration of H1975 cells, along with a decrease in lysosomal Ca2+ release. While autophagosomal proteins remained unchanged, lysosomal proteins, including TRPML1 and TPC2, were decreased in siUBA6-transfected cells. Moreover, siUBA6 induced the production of multivesicular bodies (MVBs), accompanied by an increase in MVB markers in siUBA6-transfected H1975 cells. Additionally, the expression of the exosomal marker CD63 and extracellular vesicles was increased by siUBA6 treatment. Our findings suggest that knock-down of UBA6 induces lysosomal TRPML1 depletion and inhibits endosomal trafficking to lysosome, and subsequently, leads to the accumulation of MVBs and enhanced exosomal secretion in lung cancer cells.
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Affiliation(s)
- Dongun Lee
- Department of Health Sciences and Technology, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Republic of Korea;
| | - Peter Chang-Whan Lee
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Republic of Korea;
| | - Jeong Hee Hong
- Department of Health Sciences and Technology, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Republic of Korea;
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3
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Kim HJ, Hong JH. Multiple Regulatory Signals and Components in the Modulation of Bicarbonate Transporters. Pharmaceutics 2024; 16:78. [PMID: 38258089 PMCID: PMC10820580 DOI: 10.3390/pharmaceutics16010078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
Bicarbonate transporters are responsible for the appropriate flux of bicarbonate across the plasma membrane to perform various fundamental cellular functions. The functions of bicarbonate transporters, including pH regulation, cell migration, and inflammation, are highlighted in various cellular systems, encompassing their participation in both physiological and pathological processes. In this review, we focused on recently identified modulatory signaling components that regulate the expression and activity of bicarbonate transporters. Moreover, we addressed recent advances in our understanding of cooperative systems of bicarbonate transporters and channelopathies. This current review aims to provide a new, in-depth understanding of numerous human diseases associated with the dysfunction of bicarbonate transporters.
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Affiliation(s)
| | - Jeong Hee Hong
- Department of Physiology, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Republic of Korea;
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Kim HJ, Hong JH. Trafficking of carbonic anhydrase 12 and bicarbonate transporters by histamine stimulation mediates intracellular acidic scenario in lung cancer cells. J Enzyme Inhib Med Chem 2023; 38:2247181. [PMID: 37587861 PMCID: PMC10438860 DOI: 10.1080/14756366.2023.2247181] [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: 03/23/2023] [Revised: 08/07/2023] [Accepted: 08/07/2023] [Indexed: 08/18/2023] Open
Abstract
Carbonic anhydrase 12 is considered an oncogenic and acidic microenvironmental factor in cancer cells. To verify the role of histamine signalling as an anti-cancer signal, we determined the roles of CA12 and its associated bicarbonate transporters. In this study, histamine stimulation mediated mislocalization of CA12 in lung cancer cells. Histamine receptor activation-mediated CA12 endocytosis and pH were restored by CaMKII inhibition. CA12-associated AE2 expression was enhanced, whereas NBCn1 expression and its activity were reduced by histamine stimulation. Histamine receptor activation-mediated acidification was induced by internalised CA12 and NBCn1 and, at the same time by increased bicarbonate efflux through enhanced AE2 expression. Inhibition of protein trafficking by bafilomycin restored CA12 and AE2 localisation and diminished cellular acidosis. Thus, we verified that histamine stimulation induced an acidic scenario, which revealed trafficking of CA12 and its associated bicarbonate transporters in lung cancer cells and its dysregulated pH modulation may be involved in the histamine signalling-mediated anti-cancer process.
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Affiliation(s)
- Hyeong jae Kim
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, Incheon, South Korea
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, Incheon, South Korea
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Lee D, Hong JH. Niemann-Pick Disease Type C (NPDC) by Mutation of NPC1 and NPC2: Aberrant Lysosomal Cholesterol Trafficking and Oxidative Stress. Antioxidants (Basel) 2023; 12:2021. [PMID: 38136141 PMCID: PMC10740957 DOI: 10.3390/antiox12122021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
Cholesterol trafficking is initiated by the endocytic pathway and transported from endo/lysosomes to other intracellular organelles. Deficiencies in cholesterol-sensing and binding proteins NPC1 and NPC2 induce accumulation in lysosomes and the malfunction of trafficking to other organelles. Each organelle possesses regulatory factors to induce cholesterol trafficking. The mutation of NPC1 and NPC2 genes induces Niemann-Pick disease type C (NPDC), which is a hereditary disease and causes progressive neurodegeneration, developmental disability, hypotonia, and ataxia. Oxidative stress induces damage in NPDC-related intracellular organelles. Although studies on the relationship between NPDC and oxidation are relatively rare, several studies have reported the therapeutic potential of antioxidants in treating NPDC. Investigating antioxidant drugs to relieve oxidative stress and cholesterol accumulation is suggested to be a powerful tool for developing treatments for NPDC. Understanding NPDC provides challenging issues in understanding the oxidative stress-lysosome metabolism of the lipid axis. Thus, we elucidated the relationship between complexes of intracellular organelles and NPDC to develop our knowledge and suggested potential antioxidant reagents for NPDC therapy.
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Affiliation(s)
| | - Jeong Hee Hong
- Department of Health Sciences & Technology, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Republic of Korea;
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Jeong IH, Yun JK, Jin JO, Hong JH, Lee JY, Lee GD, Lee PCW. E3 ligase SOCS3 regulates NOD2 expression by ubiquitin proteasome system in lung cancer progression. Cell Oncol (Dordr) 2023:10.1007/s13402-023-00896-5. [PMID: 37910276 DOI: 10.1007/s13402-023-00896-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2023] [Indexed: 11/03/2023] Open
Abstract
PURPOSE Despite lung cancer is one of the leading causes of cancer-related deaths, it remains hard to discover effective diagnostic and therapeutic approaches. Moreover, the five-year survival rate is relatively lower than other tumors. So urgent needs for finding a new theranostic target to treat lung cancer effectively. This study aims to present SOCS3 and NOD2 proteins as novel targets for diagnosis and therapy. METHODS We first confirmed SOCS3 expression level in patients' tissues. Then, we applied knockdown and overexpression of SOCS3 on lung cancer cell lines and performed proliferation, migration, and invasion assay. After that, we found NOD2 is a target of SOCS3 and introduced overexpression of NOD2 to A549 for verifying reduced tumorigenicity of lung cancer cells. RESULTS We identified protein expression level of SOCS3 was frequently higher in tumor tissues than adjacent normal tissues. Truly, overexpression of SOCS3 promoted proliferation, migration, and invasion capacity of lung cancer cells. We found that SOCS3 interacts with NOD2 and SOCS3 ubiquitinates NOD2 directly. Furthermore, lung cancer tissues with higher SOCS3 expression showed lower NOD2 expression. We confirmed overexpression of NOD2 leads to suppressed tumorigenicity of lung cancer cells, and these effects occurred through MAPK pathway. CONCLUSION Collectively, our work reveals novel roles of SOCS3 in lung tumorigenesis and proposes SOCS3 as a promising biomarker candidate for therapeutic and diagnostic target for lung cancer.
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Affiliation(s)
- In-Ho Jeong
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Jae Kwang Yun
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Jun-O Jin
- Department of Microbiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, Korea
| | - Ji Yeon Lee
- Division of Rheumatology, Department of Medicine, Seoul St. Mary's Hospital, Catholic University, Seoul, 06591, Korea.
| | - Geun Dong Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.
- Lung Cancer Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.
| | - Peter Chang-Whan Lee
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.
- Lung Cancer Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.
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Cho I, Cho J, Hong JH, Choe WS, Shin H. Utilizing standardized nursing terminologies in implementing an AI-powered fall-prevention tool to improve patient outcomes: a multihospital study. J Am Med Inform Assoc 2023; 30:1826-1836. [PMID: 37507147 PMCID: PMC10586045 DOI: 10.1093/jamia/ocad145] [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: 03/07/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
OBJECTIVES Standardized nursing terminologies (SNTs) are necessary to ensure consistent knowledge expression and compare the effectiveness of nursing practice across settings. This study investigated whether SNTs can support semantic interoperability and outcoming tracking over time by implementing an AI-powered CDS tool for fall prevention across multiple EMR systems. MATERIALS AND METHODS The study involved 3 tertiary academic hospitals and 1 public hospital with different EMR systems and nursing terms, and employed an AI-powered CDS tool that determines the fall risk within the next hour (prediction model) and recommends tailored care plans (CDS functions; represented by SNTs). The prediction model was mapped to local data elements and optimized using local data sets. The local nursing statements in CDS functions were mapped using an ICNP-based inpatient fall-prevention catalog. Four implementation models were compared, and patient outcomes and nursing activities were observed longitudinally at one site. RESULTS The postimplementation approach was practical for disseminating the AI-powered CDS tool for nursing. The 4 hospitals successfully implemented prediction models with little performance variation; the AUROCs were 0.8051-0.9581. The nursing process data contributed markedly to fall-risk predictions. The local nursing statements on preventing falls covered 48.0%-86.7% of statements. There was no significant longitudinal decrease in the fall rate (P = .160, 95% CI = -1.21 to 0.21 per 1000 hospital days), but rates of interventions provided by nurses were notably increased. CONCLUSION SNTs contributed to achieving semantic interoperability among multiple EMR systems to disseminate AI-powered CDS tools and automatically track nursing and patient outcomes.
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Affiliation(s)
- Insook Cho
- Nursing Department, Inha University, Incheon, Republic of Korea
- Division of General Internal Medicine, The Center for Patient Safety Research and Practice, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Jiseon Cho
- Department of Nursing, National Health Insurance Service Ilsan Hospital, Gyeonggi-do, Republic of Korea
| | - Jeong Hee Hong
- Department of Nursing, Samsung Medical Center, Seoul, Republic of Korea
| | - Wha Suk Choe
- Department of Nursing, Inha University Hospital, Incheon, Republic of Korea
| | - HyeKyeong Shin
- Graduate School, Nursing Department, Inha University, Incheon, Republic of Korea
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Lee D, Hong JH. Modulation of Lysosomal Cl - Mediates Migration and Apoptosis through the TRPML1 as a Lysosomal Cl - Sensor. Cells 2023; 12:1835. [PMID: 37508500 PMCID: PMC10378694 DOI: 10.3390/cells12141835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Lysosomes are responsible for protein degradation and clearance in cellular recycling centers. It has been known that the lysosomal chloride level is enriched and involved in the intrinsic lysosomal function. However, the mechanism by which chloride levels can be sensed and that of the chloride-mediated lysosomal function is unknown. In this study, we verified that reduced chloride levels acutely induced lysosomal calcium release through TRPML1 and lysosomal repositioning toward the juxtanuclear region. Functionally, low chloride-induced lysosomal calcium release attenuated cellular migration. In addition, spontaneous exposure to low chloride levels dysregulated lysosomal biogenesis and subsequently induced delayed migration and promoted apoptosis. Two chloride-sensing GXXXP motifs in the TRPML1 were identified. Mutations in the GXXXP motif of TRPML1 did not affect chloride levels, and there were no changes in migratory ability. In this study, we demonstrated that the depletion of chloride induces reformation of the lysosomal calcium pool and subsequently dysregulated cancer progression, which will assist in improving therapeutic strategies for lysosomal accumulation-associated diseases or cancer cell apoptosis.
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Affiliation(s)
- Dongun Lee
- Department of Health Sciences & Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Incheon 21999, Republic of Korea
| | - Jeong Hee Hong
- Department of Health Sciences & Technology, Gachon Advanced Institute for Health Sciences and Technology (GAIHST), Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Incheon 21999, Republic of Korea
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Lee D, Hong JH. Multiple-Factors-Induced Rheumatoid Arthritis Synoviocyte Activation Is Attenuated by the α2-Adrenergic Receptor Agonist Dexmedetomidine. Int J Mol Sci 2023; 24:10756. [PMID: 37445932 DOI: 10.3390/ijms241310756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Dexmedetomidine (Dex) has analgesic and sedative properties and anti-inflammatory functions. Although the effects of Dex on arthritis have been revealed, the physiological mechanism underlying the interaction between Dex and rheumatoid arthritis (RA)-mediated inflammatory cytokines has not been fully studied. Inflamed and migrated fibroblast-like synoviocytes (FLSs) are involved in RA severity. Thus, we aimed to determine the effects of Dex on RA-FLSs treated with inflammatory cytokines and a growth factor as multiple stimulating inputs. TNF-α, IL-6, and EGF as multiple stimulating inputs increased the cAMP concentration of RA-FLSs, while Dex treatment reduced cAMP concentration. Dex reduced electroneutral sodium-bicarbonate cotransporter 1 (NBCn1) expression, NBC activity, and subsequent RA-FLS migration. The mRNA expression levels of RA-related factors, such as inflammatory cytokines and osteoclastogenesis factors, were enhanced by multiple-input treatment. Notably, Dex effectively reduced these expression levels in RA-FLSs. These results indicate that multiple inflammatory or stimulating inputs enhance RA-FLS migration, and treatment with Dex relieves activated RA-FLSs, suggesting that Dex is a potential therapeutic drug for RA.
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Affiliation(s)
- Dongun Lee
- Department of Health Sciences and Technology, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Republic of Korea
| | - Jeong Hee Hong
- Department of Health Sciences and Technology, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Republic of Korea
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Kim HJ, Lee PCW, Hong JH. Overview of cellular homeostasis-associated nuclear envelope lamins and associated input signals. Front Cell Dev Biol 2023; 11:1173514. [PMID: 37250905 PMCID: PMC10213260 DOI: 10.3389/fcell.2023.1173514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/03/2023] [Indexed: 05/31/2023] Open
Abstract
With the discovery of the role of the nuclear envelope protein lamin in human genetic diseases, further diverse roles of lamins have been elucidated. The roles of lamins have been addressed in cellular homeostasis including gene regulation, cell cycle, cellular senescence, adipogenesis, bone remodeling as well as modulation of cancer biology. Features of laminopathies line with oxidative stress-associated cellular senescence, differentiation, and longevity and share with downstream of aging-oxidative stress. Thus, in this review, we highlighted various roles of lamin as key molecule of nuclear maintenance, specially lamin-A/C, and mutated LMNA gene clearly reveal aging-related genetic phenotypes, such as enhanced differentiation, adipogenesis, and osteoporosis. The modulatory roles of lamin-A/C in stem cell differentiation, skin, cardiac regulation, and oncology have also been elucidated. In addition to recent advances in laminopathies, we highlighted for the first kinase-dependent nuclear lamin biology and recently developed modulatory mechanisms or effector signals of lamin regulation. Advanced knowledge of the lamin-A/C proteins as diverse signaling modulators might be biological key to unlocking the complex signaling of aging-related human diseases and homeostasis in cellular process.
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Affiliation(s)
- Hyeong Jae Kim
- Department of Physiology, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Republic of Korea
| | - Peter C. W. Lee
- Lung Cancer Research Center, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Republic of Korea
| | - Jeong Hee Hong
- Department of Physiology, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Republic of Korea
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Shim S, Yu JY, Jekal S, Song YJ, Moon KT, Lee JH, Yeom KM, Park SH, Cho IS, Song MR, Heo S, Hong JH. Development and validation of interpretable machine learning models for inpatient fall events and electronic medical record integration. Clin Exp Emerg Med 2022; 9:345-353. [PMID: 36128798 PMCID: PMC9834835 DOI: 10.15441/ceem.22.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/08/2022] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE Falls are one of the most frequently occurring adverse events among hospitalized patients. The Morse Fall Scale, which has been widely used for fall risk assessment, has the two limitations of low specificity and difficulty in practical implementation. The aim of this study was to develop and validate an interpretable machine learning model for prediction of falls to be integrated in an electronic medical record (EMR) system. METHODS This was a retrospective study involving a tertiary teaching hospital in Seoul, Korea. Based on the literature, 83 known predictors were grouped into seven categories. Interpretable fall event prediction models were developed using multiple machine learning models including gradient boosting and Shapley values. RESULTS Overall, 191,778 cases with 272 fall events (0.1%) were included in the analysis. With the validation cohort of 2020, the area under the receiver operating curve (AUROC) of the gradient boosting model was 0.817 (95% confidence interval [CI], 0.720-0.904), better performance than random forest (AUROC, 0.801; 95% CI, 0.708-0.890), logistic regression (AUROC, 0.802; 95% CI, 0.721-0.878), artificial neural net (AUROC, 0.736; 95% CI, 0.650-0.821), and conventional Morse fall score (AUROC, 0.652; 95% CI, 0.570-0.715). The model's interpretability was enhanced at both the population and patient levels. The algorithm was later integrated into the current EMR system. CONCLUSION We developed an interpretable machine learning prediction model for inpatient fall events using EMR integration formats.
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Affiliation(s)
- Soyun Shim
- Department of Nursing, Samsung Medical Center, Seoul, Korea
| | - Jae Yong Yu
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea,Digital and Smart Health Office, Tan Tock Seng Hospital (TTSH), Singapore
| | - Seyong Jekal
- Digital Innovation Center, Samsung Medical Center, Seoul, Korea
| | - Yee Jun Song
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea
| | - Ki Tae Moon
- Digital Innovation Center, Samsung Medical Center, Seoul, Korea
| | - Ju Hee Lee
- Department of Nursing, Samsung Medical Center, Seoul, Korea
| | - Kyung Mi Yeom
- Department of Nursing, Samsung Medical Center, Seoul, Korea
| | - Sook Hyun Park
- Department of Nursing, Samsung Medical Center, Seoul, Korea
| | - In Sook Cho
- Department of Nursing, Inha University, Incheon, Korea
| | - Mi Ra Song
- Department of Nursing, Samsung Medical Center, Seoul, Korea
| | - Sejin Heo
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea,Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong Hee Hong
- Department of Nursing, Samsung Medical Center, Seoul, Korea,Correspondence to: Jeong Hee Hong Department of Nursing, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea E-mail:
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Ji MJ, Son KH, Hong JH. Addition of oh8dG to Cardioplegia Attenuated Myocardial Oxidative Injury through the Inhibition of Sodium Bicarbonate Cotransporter Activity. Antioxidants (Basel) 2022; 11:antiox11091641. [PMID: 36139714 PMCID: PMC9495749 DOI: 10.3390/antiox11091641] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 11/28/2022] Open
Abstract
The biomarker 8-hydroxy-2′-deoxyguanosine (oh8dG) is derived from oxidized nucleic acids or products of oxidant-mediated DNA damage. Enhanced sodium bicarbonate cotransporter (NBC) activity is caused by reactive oxygen species (ROS) production in ventricular myocytes. Thus, we hypothesized that cardioplegia-solution-mediated ROS generation may be involved in the regulation of NBC activity in cardiomyocytes and that oh8dG treatment may modulate ROS and associated NBC activity. Langendorff-free cardioplegia-arrested cardiac strips and cardiomyocytes were isolated to determine the NBC activity and effects of oh8dG on oxidative-stress-mediated cardiac damage markers. We first determined the histidine-tryptophan-ketoglutarate (HTK) solution mediated NBC activity in cardiac strips and cells. The oh8dG treatment attenuated NBC activity in the electroneutral or electrogenic form of NBC. Additionally, exposure to HTK solution induced ROS, whereas co-administration of oh8dG attenuated ROS-mediated NBC activity, reduced ROS levels, and decreased the expression of apoptotic markers and fibrosis-associated proteins in cardiac cells. The oh8dG-administrated cardiac tissues were also protected from enhanced HTK-induced damage markers, heat shock protein 60 and polyADP-ribose. Our results show that oh8dG has a protective role against myocardial oxidative damage and provides a useful treatment strategy for restoring cardiac function.
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Affiliation(s)
- Min Jeong Ji
- Department of Health Sciences and Technology, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Korea
| | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Korea
- Correspondence: (K.H.S.); (J.H.H.); Tel.: +82-32-899-6682 (J.H.H.)
| | - Jeong Hee Hong
- Department of Health Sciences and Technology, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Korea
- Correspondence: (K.H.S.); (J.H.H.); Tel.: +82-32-899-6682 (J.H.H.)
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Ji M, Ryu HJ, Baek HM, Shin DM, Hong JH. Dynamic synovial fibroblasts are modulated by NBCn1 as a potential target in rheumatoid arthritis. Exp Mol Med 2022; 54:503-517. [PMID: 35414711 PMCID: PMC9076869 DOI: 10.1038/s12276-022-00756-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 01/09/2022] [Accepted: 01/26/2022] [Indexed: 11/09/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by aggressive fibroblast-like synoviocytes (FLSs) and pannus formation. Various therapeutic strategies have been developed against inflammatory cytokines in RA in recent decades. Based on the migratory features of FLSs, we examined whether modulation of the migratory module attenuates RA severity. In this study, inflamed synovial fluid-stimulated FLSs exhibited enhanced migration and migratory apparatus expression, and sodium bicarbonate cotransporter n1 (NBCn1) was identified in primary cultured RA-FLSs for the first time. The NBC inhibitor S0859 attenuated the migration of FLSs induced with synovial fluid from patients with RA or with TNF-α stimulation. Inhibition of NBCs with S0859 in a collagen-induced arthritis (CIA) mouse model reduced joint swelling and destruction without blood, hepatic, or renal toxicity. Primary FLSs isolated from the CIA-induced mouse model also showed reduced migration in the presence of S0859. Our results suggest that inflammatory mediators in synovial fluid, including TNF-α, recruit NBCn1 to the plasma membrane of FLSs to provide dynamic properties and that modulation of NBCn1 could be developed into a therapeutic strategy for RA.
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Affiliation(s)
- Minjeong Ji
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, 155 Getbeolro, Yeonsu-gu, Incheon, South Korea
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, South Korea
| | - Hee Jung Ryu
- Division of Rheumatology, Department of Internal Medicine, Gachon University Gil Medical Center, 21 Namdongdae-ro 774-gil, Nandong-gu, Incheon, South Korea
| | - Hyeon-Man Baek
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, South Korea
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon, South Korea
| | - Dong Min Shin
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, South Korea.
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, 155 Getbeolro, Yeonsu-gu, Incheon, South Korea.
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, South Korea.
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon, South Korea.
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Lee D, Lee PCW, Hong JH, Shin DM. Estrogen treatment reduced oxalate transporting activity and enhanced migration through the involvement of SLC26A6 in lung cancer cells. Toxicol In Vitro 2022; 82:105373. [DOI: 10.1016/j.tiv.2022.105373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/19/2022] [Accepted: 04/26/2022] [Indexed: 11/30/2022]
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Ji MJ, Ryu HJ, Hong JH. Synovial Fluid of Patient With Rheumatoid Arthritis Enhanced Osmotic Sensitivity Through the Cytotoxic Edema Module in Synoviocytes. Front Cell Dev Biol 2021; 9:700879. [PMID: 34532317 PMCID: PMC8438158 DOI: 10.3389/fcell.2021.700879] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 07/28/2021] [Indexed: 12/12/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease that causes inflammation of the synovial membrane ultimately leading to permanent damage in the affected joints. For this study, synovial fluids from 16 patients diagnosed with either RA or osteoarthritis (OA) were used to examine volume regulation and cooperative water channels, both of which are involved in the cytotoxic edema identified in RA-fibroblast-like synoviocytes (FLS). The osmolarity and inflammatory cytokine interleukin (IL)-6 of synovial fluids from RA patients were mildly enhanced compared to that from OA patients. RA-FLS demonstrated the enhanced property of regulatory volume increase in response to IL-6 and synovial fluids from RA patients. Although there was no difference in the protein expression of the volume-associated protein sodium–potassium–chloride cotransporter1 (NKCC1), its activity was increased by treatment with IL-6. Membrane localization of NKCC1 was also increased by IL-6 treatment. Additionally, both the protein and membrane expressions of aquaporin-1 were increased in RA-FLS by IL-6 stimulation. The IL-6-mediated enhanced osmotic sensitivity of RA-FLS likely involves NKCC1 and aquaporin-1, which mainly constitute the volume-associated ion transporter and water channel elements. These results suggest that RA-FLS provide enhanced electrolytes and concomitant water movement through NKCC1 and aquaporin-1, thereby inducing cellular swelling ultimately resulting in cytotoxic edema. Attenuation of cytotoxic edema and verification of its related mechanism will provide novel therapeutic approaches to RA treatment within the scope of cytotoxic edema.
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Affiliation(s)
- Min Jeong Ji
- Department of Physiology, College of Medicine, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, South Korea.,Department of Oral Biology, Yonsei University College of Dentistry, Seoul, South Korea
| | - Hee Jung Ryu
- Division of Rheumatology, Department of Internal Medicine, Gachon University College of Medicine Gil Medical Center, Incheon, South Korea
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, South Korea
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Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by symmetrical and chronic polyarthritis. Fibroblast-like synoviocytes are mainly involved in joint inflammation and cartilage and bone destruction by inflammatory cytokines and matrix-degrading enzymes in RA. Approaches that induce various cellular growth alterations of synoviocytes are considered as potential strategies for treating RA. However, since synoviocytes play a critical role in RA, the mechanism and hyperplastic modulation of synoviocytes and their motility need to be addressed. In this review, we focus on the alteration of synoviocyte signalling and cell fate provided by signalling proteins, various antioxidant molecules, enzymes, compounds, clinical candidates, to understand the pathology of the synoviocytes, and finally to achieve developed therapeutic strategies of RA. Cite this article: Bone Joint Res 2021;10(4):285–297.
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Affiliation(s)
- Minjeong Ji
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, Incheon, South Korea
| | - Hee Jung Ryu
- Department of Rheumatology, Gachon University Gil Medical Center, Incheon, South Korea
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, Incheon, South Korea.,Department of Health Sciences and Technology, GAIHST, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, South Korea
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17
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Hwang S, Lee PCW, Shin DM, Hong JH. Modulated Start-Up Mode of Cancer Cell Migration Through Spinophilin-Tubular Networks. Front Cell Dev Biol 2021; 9:652791. [PMID: 33768098 PMCID: PMC7985070 DOI: 10.3389/fcell.2021.652791] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/09/2021] [Indexed: 11/26/2022] Open
Abstract
Spinophilin (SPL) is a multifunctional actin-binding scaffolding protein. Although increased research on SPL in cancer biology has revealed a tumor suppressive role, its modulation in cancer biology, and oncological relevance remains elusive. Thus, we determined the role of SPL in the modulation of the junctional network and cellular migration in A549 lung cancer cell line. Knockdown of SPL promoted cancer cell invasion in agarose spot and scratch wound assays. Attenuation of SPL expression also enhanced invadopodia, as revealed by enhanced vinculin spots, and enhanced sodium bicarbonate cotransporter NBC activity without enhancing membranous expression of NBCn1. Disruption of the tubular structure with nocodazole treatment revealed enhanced SPL expression and reduced NBC activity and A549 migration. SPL-mediated junctional modulation and tubular stability affected bicarbonate transporter activity in A549 cells. The junctional modulatory function of SPL in start-up migration, such as remodeling of tight junctions, enhanced invadopodia, and increased NBC activity, revealed here would support fundamental research and the development of an initial target against lung cancer cell migration.
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Affiliation(s)
- Soyoung Hwang
- Department of Physiology, College of Medicine, Gachon University, Incheon, South Korea
| | - Peter Chang-Whan Lee
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Dong Min Shin
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Gachon University, Incheon, South Korea.,Department of Health Sciences and Technology, GAIHST, Lee Gil Ya Cancer and Diabetes Institute, Incheon, South Korea
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18
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Ji M, Kim HJ, Ahn CB, Son KH, Hong JH. Cellular channelopathy mediated by hypergravity: IL-6-mediated Nkcc1 activation and enhanced Trpm2 expression in rat atrium. Cell Tissue Res 2020; 383:1017-1024. [PMID: 33159577 DOI: 10.1007/s00441-020-03299-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 09/14/2020] [Indexed: 12/23/2022]
Abstract
Although cardiac tissue is considered a target of gravitational force (g-force), the mechanism of hypergravity on the ion modulation or identification of ion transporters is still unknown. Thus, we determine the effect of hypergravity on a physical force-sensitive cytokine, IL-6 and its related channel activity to investigate rat cardiac function changes in response to accelerated g-force. Serum IL-6 levels and intracellular calcium levels of the right atrium were moderately increased under hypergravity stimulation (4g). IL-6 was involved in the modulation of sodium-potassium-chloride cotransporter (Nkcc) activity. Surprisingly, the right atrium under 4g revealed significantly enhanced Nkcc1 activity. The use of IL-6 on the NKCC1-overexpressed or native NKCC-expressing cells also showed enhanced NKCC1 activity. Hypergravity conditions were also involved in the oxidative stress activated Trpm2 channel and revealed an enhanced expression of the Trpm2 channel under 4g in the rat right atrium. In conclusion, hypergravity revealed that moderate increases in serum IL-6 and enhanced Nkcc1 activity was modulated by IL-6. In addition, enhanced Trpm2 channel expression could be involved in the increased intracellular calcium levels of the right atrium under hypergravitational force. We therefore address that enhanced physical force-sensitive cytokine and oxidative stress by the gravitational force mediate activation of the cotransporter involved in possibilities of edema and calcium loading in cardiac tissue.
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Affiliation(s)
- Minjeong Ji
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, 155 Getbeolro, Yeonsu-gu, Incheon, 21999, South Korea
| | - Hyun Ji Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Inha University College of Medicine, 27 Inhang-ro, Jung-gu, Incheon, 22332, South Korea
| | - Chi Bum Ahn
- Center for Information Security Technologies, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, South Korea
| | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon, 21565, South Korea.
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, 155 Getbeolro, Yeonsu-gu, Incheon, 21999, South Korea. .,Department of Health Sciences and Technology, GAIHST, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon, 21999, South Korea.
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Sung P, Yoon SH, Kim J, Hong JH, Park S, Goo JM. Bronchovascular bundle thickening on CT as a predictor of survival and brain metastasis in patients with stage IA peripheral small cell lung cancer. Clin Radiol 2020; 76:76.e37-76.e46. [PMID: 32948314 DOI: 10.1016/j.crad.2020.08.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/19/2020] [Indexed: 01/03/2023]
Abstract
AIM To determine if bronchovascular bundle (BVB) thickening on pretreatment computed tomography (CT) images helps predict survival in patients with peripheral small cell lung cancer (pSCLC) ≤3 cm. MATERIALS AND METHODS The pretreatment CT examinations of 79 histopathologically proven pSCLC ≤3 cm (TNM stage I, 21; II, 13; III, 22; IV, 23) were reviewed retrospectively. The CT characteristics of the nodule and associated findings, including BVB thickening, were evaluated. Progression-free survival (PFS), overall survival (OS), and brain metastasis-free survival were compared with the presence of BVB thickening using Kaplan-Meier and Cox regression analysis. RESULTS Among the 79 patients, 34 (43%) had BVB thickening. BVB thickening was prevalent in patients with mediastinal lymph node metastasis (50.9% versus 22.7%; p=0.024) and distant metastasis (60.9% versus 35.7%; p=0.049). Out of the 21 patients with TNM stage IA disease, the 16 patients (76.2%) without BVB thickening showed better PFS, OS, and brain metastasis-free survival (mean, 1,762 versus 483 days; p=0.019: 2,243 versus 1,328 days; p=0.038: 2,274 versus 1,287 days; p=0.038, respectively). Multivariate Cox regression analysis showed that the absence of BVB thickening (hazard ratio [HR], 7.806; 95% CI, 1.241-49.091; p=0.029) and surgery (HR, 0.075; 95% CI, 0.008-0.746; p=0.027) were independent and useful prognostic factors for PFS. CONCLUSIONS BVB thickening was found more frequently in patients with advanced-stage pSCLC ≤3 cm, and the PFS was more favourable in patients without BVB thickening, with a similar tendency to that of OS and brain metastasis-free survival, in stage IA pSCLC.
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Affiliation(s)
- P Sung
- Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - S H Yoon
- Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea; Department of Radiology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 030804, South Korea.
| | - J Kim
- Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 300 Gumi-dong, Bundang-gu, Seongnam, Gyeonggi-do, 13620, South Korea
| | - J H Hong
- Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - S Park
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - J M Goo
- Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea; Department of Radiology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 030804, South Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, 103 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
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20
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Hwang S, Shin DM, Hong JH. Protective Role of IRBIT on Sodium Bicarbonate Cotransporter-n1 for Migratory Cancer Cells. Pharmaceutics 2020; 12:pharmaceutics12090816. [PMID: 32867284 PMCID: PMC7558343 DOI: 10.3390/pharmaceutics12090816] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/19/2020] [Accepted: 08/25/2020] [Indexed: 12/17/2022] Open
Abstract
IP3 receptor-binding protein released with IP3 (IRBIT) interacts with various ion channels and transporters. An electroneutral type of sodium bicarbonate cotransporter, NBCn1, participates in cell migration, and its enhanced expression is related to cancer metastasis. The effect of IRBIT on NBCn1 and its relation to cancer cell migration remain obscure. We therefore aimed to determine the effect of IRBIT on NBCn1 and the regulation of cancer cell migration due to IRBIT-induced alterations in NBCn1 activity. Overexpression of IRBIT enhanced cancer cell migration and NBC activity. Knockdown of IRBIT or NBCn1 and treatment with an NBC-specific inhibitor, S0859, attenuated cell migration. Stimulation with oncogenic epidermal growth factor enhanced the expression of NBCn1 and migration of cancer cells by recruiting IRBIT. The recruited IRBIT stably maintained the expression of the NBCn1 transporter machinery in the plasma membrane. Combined inhibition of IRBIT and NBCn1 dramatically inhibited the migration of cancer cells. Combined modulation of IRBIT and NBCn1 offers an effective strategy for attenuating cancer metastasis.
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Affiliation(s)
- Soyoung Hwang
- Department of Physiology, College of Medicine, Department of Health Sciences and Technology, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Korea;
| | - Dong Min Shin
- Department of Oral Biology, Yonsei University College of Dentistry, Seoul 03722, Korea
- Correspondence: (D.M.S.); (J.H.H.); Tel.: +82-22-228-3051 (D.M.S.); +82-32-899-6682 (J.H.H.); Fax: +82-23-64-1085 (D.M.S.); +82-32-899-6039 (J.H.H.)
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Department of Health Sciences and Technology, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Korea;
- Correspondence: (D.M.S.); (J.H.H.); Tel.: +82-22-228-3051 (D.M.S.); +82-32-899-6682 (J.H.H.); Fax: +82-23-64-1085 (D.M.S.); +82-32-899-6039 (J.H.H.)
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Lee JY, Hong JH, Park EY. Beyond the fear: Nurses' experiences caring for patients with Middle East respiratory syndrome: A phenomenological study. J Clin Nurs 2020; 29:3349-3362. [PMID: 32498126 DOI: 10.1111/jocn.15366] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/25/2020] [Accepted: 05/24/2020] [Indexed: 12/20/2022]
Abstract
AIM AND OBJECTIVES To explore the experiences of Korean nurses who had directly cared for patients with Middle East respiratory syndrome (MERS) and to derive the structure and meaning of these experiences. BACKGROUND In 2015, the MERS epidemic struck Korea, and ill-prepared nurses had to care for patients with MERS. Nurses experienced conflict between their fear of the disease and their work and professional ethic. DESIGN We employed a phenomenological qualitative approach. METHODS Inductive, qualitative, in-depth interviews were performed with 17 nurses. The study process followed the Consolidated Criteria for Reporting Qualitative Research (COREQ) checklist. RESULTS The qualitative inductive content analysis generated seven theme clusters and 18 themes. The theme clusters were "Fear of Uncertainty," "Beyond Hesitation," "A Scene Like a Battlefield," "Chaotic Nursing Identity," "Buttresses for Sustainability," "Lingering Trauma" and "Expanded Horizon of Nursing." The final analysis revealed that the core theme was "Beyond the fear of uncertainty." CONCLUSIONS This study contrives a more in-depth, holistic understanding by describing the experiences of nurses who directly cared for patients with MERS-the first large-scale infectious disease in Korea. Although nurses saw themselves as vital caregivers, they were frightened of the disease, had to work in a harsh environment, experienced various internal conflicts and had to deal with varying forms of uncertainty. RELEVANCE TO CLINICAL PRACTICE This study sheds light on the nursing situation during crises involving serious infectious diseases; to combat these, more medical facilities are needed, and staff should be proactively guided on how to care for patients. It can serve as part of a good foundation for further study of medical staff during recurring epidemics.
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Affiliation(s)
- Jin Young Lee
- College of Nursing, Ewha Womans University, Seoul, South Korea
| | - Jeong Hee Hong
- Nursing Administrative Support Team, Samsung Medical Center, Graduate School of Clinical Nursing Science, Sungkyunkwan University, Seoul, South Korea
| | - Eun Young Park
- College of Nursing, Gachon University, Incheon, South Korea
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Lee HW, Chung W, Lee HO, Jeong DE, Jo A, Lim JE, Hong JH, Nam DH, Jeong BC, Park SH, Joo KM, Park WY. Single-cell RNA sequencing reveals the tumor microenvironment and facilitates strategic choices to circumvent treatment failure in a chemorefractory bladder cancer patient. Genome Med 2020; 12:47. [PMID: 32460812 PMCID: PMC7251908 DOI: 10.1186/s13073-020-00741-6] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [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] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 04/24/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Tumor cell-intrinsic mechanisms and complex interactions with the tumor microenvironment contribute to therapeutic failure via tumor evolution. It may be possible to overcome treatment resistance by developing a personalized approach against relapsing cancers based on a comprehensive analysis of cell type-specific transcriptomic changes over the clinical course of the disease using single-cell RNA sequencing (scRNA-seq). METHODS Here, we used scRNA-seq to depict the tumor landscape of a single case of chemo-resistant metastatic, muscle-invasive urothelial bladder cancer (MIUBC) addicted to an activating Harvey rat sarcoma viral oncogene homolog (HRAS) mutation. In order to analyze tumor evolution and microenvironmental changes upon treatment, we also applied scRNA-seq to the corresponding patient-derived xenograft (PDX) before and after treatment with tipifarnib, a HRAS-targeting agent under clinical evaluation. RESULTS In the parallel analysis of the human MIUBC and the PDX, diverse stromal and immune cell populations recapitulated the cellular composition in the human and mouse tumor microenvironment. Treatment with tipifarnib showed dramatic anticancer effects but was unable to achieve a complete response. Importantly, the comparative scRNA-seq analysis between pre- and post-tipifarnib-treated PDX revealed the nature of tipifarnib-refractory tumor cells and the tumor-supporting microenvironment. Based on the upregulation of programmed death-ligand 1 (PD-L1) in surviving tumor cells, and the accumulation of multiple immune-suppressive subsets from post-tipifarnib-treated PDX, a PD-L1 inhibitor, atezolizumab, was clinically applied; this resulted in a favorable response from the patient with acquired resistance to tipifarnib. CONCLUSION We presented a single case report demonstrating the power of scRNA-seq for visualizing the tumor microenvironment and identifying molecular and cellular therapeutic targets in a treatment-refractory cancer patient.
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Affiliation(s)
- Hye Won Lee
- Department of Anatomy and Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea
- Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea
- Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, 06351, Republic of Korea
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea
- Department of Hospital Medicine, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Woosung Chung
- Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, 06351, Republic of Korea
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea
- Samsung Genome Institute, Samsung Medical Center, Seoul, 06351, Republic of Korea
- DCGen Co., Ltd, Seoul, 03170, Republic of Korea
| | - Hae-Ock Lee
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea
- Samsung Genome Institute, Samsung Medical Center, Seoul, 06351, Republic of Korea
| | - Da Eun Jeong
- Department of Anatomy and Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea
- Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea
| | - Areum Jo
- Samsung Genome Institute, Samsung Medical Center, Seoul, 06351, Republic of Korea
| | - Joung Eun Lim
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea
| | - Jeong Hee Hong
- Department of Urology, Dankook University College of Medicine, Cheonan, 31116, Republic of Korea
| | - Do-Hyun Nam
- Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, 06351, Republic of Korea
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea
| | - Byong Chang Jeong
- Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, 06351, Republic of Korea.
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea.
| | - Se Hoon Park
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea.
| | - Kyeung-Min Joo
- Department of Anatomy and Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea.
- Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea.
- Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, 06351, Republic of Korea.
- Stem Cell and Regenerative Medicine Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, 06351, Republic of Korea.
| | - Woong-Yang Park
- Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, 06351, Republic of Korea.
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 16419, Republic of Korea.
- Samsung Genome Institute, Samsung Medical Center, Seoul, 06351, Republic of Korea.
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Son ES, Park JW, Kim YJ, Jeong SH, Hong JH, Kim SH, Kyung SY. Effects of antioxidants on oxidative stress and inflammatory responses of human bronchial epithelial cells exposed to particulate matter and cigarette smoke extract. Toxicol In Vitro 2020; 67:104883. [PMID: 32387680 DOI: 10.1016/j.tiv.2020.104883] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 05/01/2020] [Accepted: 05/04/2020] [Indexed: 12/01/2022]
Abstract
Particulate matter (PM) is a type of air pollutant that induces adverse health effects, including acute exacerbation of chronic obstructive pulmonary disease (COPD). However, the effects of co-exposure to PM and cigarette smoke extract (CSE) on bronchial epithelial cells remain unknown. This study investigated the cytotoxic and pro-inflammatory effects of combined exposure to PM and CSE on bronchial epithelial cells, and assessed the potential of antioxidants to inhibit CSE/PM-induced oxidative stress and inflammation. Exposure of epithelial cells to PM or CSE induced cytotoxicity, inflammation, and oxidative stress, all of which were dramatically increased when cells were exposed to the combination of CSE and PM. Importantly, the adverse effects of CSE/PM exposure were suppressed when cells were treated with sulforaphane (SFN) or sulforaphane N-acetylcysteine (SFNAC). Furthermore, SFN and SFNAC suppressed the CSE/PM-induced pro-inflammatory cytokine production and expression of inflammatory genes. Combined PM and CSE exposure further activated the MAPK and Nrf2 signaling pathways. SFN and SFNAC attenuated CSE/PM-induced epithelial toxicity through the ERK/JNK signaling pathway-dependent inhibition of inflammation. Moreover, SFN and SFNAC suppressed ROS generation by activating antioxidant enzymes and Nrf2 signaling. Therefore, SFN and SFNAC could be a promising approach to prevent or mitigate the exacerbation of pulmonary diseases caused by PM and other air pollutants.
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Affiliation(s)
- Eun Suk Son
- Department of Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Jeong-Woong Park
- Department of Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Yu Jin Kim
- Department of Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Sung Hwan Jeong
- Department of Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Jeong Hee Hong
- Department of Physiology, Graduate School of Medicine, Gachon University, Incheon, Republic of Korea
| | - Se-Hee Kim
- Gachon Medical Research Institute, Gachon University Gil Medical Center, Incheon 21565, Republic of Korea.
| | - Sun Young Kyung
- Department of Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea.
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Abstract
The highly aggressive fibroblast-like synoviocytes (FLSs) are inflammatory mediators involved in synovial joint destruction. Membrane channels and transporters are essential components of the cell migration apparatus and are involved in various cellular functions. Although evidence is emerging that cell migration is a physiological/pathological process, the mechanism of highly dynamic synoviocytes linked to the membrane channels and carbonic anhydrases (CAs) in inflamed joints is only partially understood. In this review, topics covered will give a brief overview of CAs and the membrane channels of synoviocytes. We have also systematically focused on the role of FLS channels and transporters under various conditions, including rheumatoid arthritis (RA), to understand the pathophysiology of the migration of synoviocytes as inflammatory mediators in joints.
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Affiliation(s)
- Min Jeong Ji
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute , Incheon , South Korea
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute , Incheon , South Korea
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Lee D, Hong JH. The Fundamental Role of Bicarbonate Transporters and Associated Carbonic Anhydrase Enzymes in Maintaining Ion and pH Homeostasis in Non-Secretory Organs. Int J Mol Sci 2020; 21:ijms21010339. [PMID: 31947992 PMCID: PMC6981687 DOI: 10.3390/ijms21010339] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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: 12/17/2019] [Revised: 01/02/2020] [Accepted: 01/03/2020] [Indexed: 12/18/2022] Open
Abstract
The bicarbonate ion has a fundamental role in vital systems. Impaired bicarbonate transport leads to various diseases, including immune disorders, cystic fibrosis, tumorigenesis, kidney diseases, brain dysfunction, tooth fracture, ischemic reperfusion injury, hypertension, impaired reproductive system, and systemic acidosis. Carbonic anhydrases are involved in the mechanism of bicarbonate movement and consist of complex of bicarbonate transport systems including bicarbonate transporters. This review focused on the convergent regulation of ion homeostasis through various ion transporters including bicarbonate transporters, their regulatory enzymes, such as carbonic anhydrases, pH regulatory role, and the expression pattern of ion transporters in non-secretory systems throughout the body. Understanding the correlation between these systems will be helpful in order to obtain new insights and design potential therapeutic strategies for the treatment of pH-related disorders. In this review, we have discussed the broad prospects and challenges that remain in elucidation of bicarbonate-transport-related biological and developmental systems.
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Affiliation(s)
| | - Jeong Hee Hong
- Correspondence: ; Tel.: +82-32-899-6682; Fax: +82-32-899-6039
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Lee DU, Park JY, Kwon S, Park JY, Kim YH, Khang D, Hong JH. Apoptotic lysosomal proton sponge effect in tumor tissue by cationic gold nanorods. Nanoscale 2019; 11:19980-19993. [PMID: 31603160 DOI: 10.1039/c9nr04323c] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Despite the lysosomal "proton sponge hypothesis" being considered to be an additional factor for stimulating the cellular toxicity of nanoparticle-based drug delivery systems, a clear relationship between the massive influx of calcium ions and the proton sponge effect, both of which are associated with cancer cell apoptosis, has still not been elucidated. Cetrimonium bromide (CTAB: cationic quaternary amino group based) gold nanorods possessed a more effective electric surface charge for inducing the lysosomal proton sponge effect than anionic gold nanoparticles. In this aspect, identifying released cytoplasmic Cl-, arising from the ruptured lysosomal compartment, in the cytoplasm is critical for supporting the "proton sponge hypothesis". This study clarified that the burst release of Cl-, as a result of lysosomal swelling by CTAB gold nanorods, stimulates the transient receptor potential channels melastatin 2 (TRPM2) channels, and subsequently induces a massive Ca2+ influx, which independently increases apoptosis of cancer cells. Although the previous concept of elevated cancer apoptosis acting through the proton sponge effect is unclear, this study supports the evidence that a massive Ca2+ influx mediated in response to a burst release of Cl- significantly influenced cytotoxicity of cancer cells in tumor tissues.
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Affiliation(s)
- Dong Un Lee
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea.
| | - Jun-Young Park
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea. and Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, South Korea
| | - Song Kwon
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea.
| | - Jun Young Park
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea. and Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, South Korea
| | - Yong Ho Kim
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea. and Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, South Korea and Department of Physiology, Gachon University, Incheon 21999, South Korea
| | - Dongwoo Khang
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea. and Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, South Korea and Department of Physiology, Gachon University, Incheon 21999, South Korea
| | - Jeong Hee Hong
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, South Korea. and Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, South Korea and Department of Physiology, Gachon University, Incheon 21999, South Korea
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27
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Lee GT, Kim JH, Kwon SJ, Stein MN, Hong JH, Nagaya N, Billakanti S, Kim MM, Kim WJ, Kim IY. Dihydrotestosterone Increases Cytotoxic Activity of Macrophages on Prostate Cancer Cells via TRAIL. Endocrinology 2019; 160:2049-2060. [PMID: 31184711 PMCID: PMC6691685 DOI: 10.1210/en.2019-00367] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/05/2019] [Indexed: 01/03/2023]
Abstract
Although androgen deprivation therapy (ADT) and immunotherapy are potential treatment options in men with metastatic prostate cancer (CaP), androgen has conventionally been proposed to be a suppressor of the immune response. However, we herein report that DHT activates macrophages. When the murine macrophage cell line (RAW 264.7), human monocyte cell line (THP-1), and human peripheral blood monocytes were cultured with androgen-resistant CaP cell lines, DHT increased cytotoxicity of macrophages in a concentration-dependent manner. Further studies revealed that DHT induced M1 polarization and increased the expression levels of TNF-related apoptosis-inducing ligand (TRAIL) in macrophages and that this effect was abrogated when TRAIL was neutralized with a blocking antibody or small interfering RNA. Subsequent experiments demonstrated that induction of TRAIL expression was regulated by direct binding of androgen receptor to the TRAIL promoter region. Finally, an in vivo mouse study demonstrated that castration enhanced the growth of an androgen-resistant murine CaP tumor and that this protumorigenic effect of castration was blocked when macrophages were removed with clodronate liposomes. Collectively, these results demonstrate that DHT activates the cytotoxic activity of macrophages and suggest that immunotherapy may not be optimal when combined with ADT in CaP.
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Affiliation(s)
- Geun Taek Lee
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Jeong Hyun Kim
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
- Department of Urology, School of Medicine, Kangwon National University, Chuncheon, Republic of Korea
| | - Seok Joo Kwon
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Mark N Stein
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Jeong Hee Hong
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
- Department of Urology, Dankook University College of Medicine, Cheonan, Republic of Korea
| | - Naoya Nagaya
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Sachin Billakanti
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Melina Minji Kim
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Wun-Jae Kim
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Republic of Korea
| | - Isaac Yi Kim
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
- Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
- Correspondence: Isaac Yi Kim, MD, PhD, MBA, Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, 195 Little Albany Street, #4565, New Brunswick, New Jersey 08903. E-mail: ,
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Abstract
Nanoparticles (NPs) have been studied as therapeutic drug-delivery agents for promising clinical trial outcomes. Nanomaterial-based drugs can transfer conventional drugs to target lesions, such as tumors, with increasing efficiency by enhancing drug-cell interaction or drug absorption. Although they are favorable as efficient drug transfer systems, NPs also exhibit cytotoxicity that affects nonpathological regions. Here, we review the basic information behind NP-induced Ca2+ signaling and its participation in channel physiology and pathology. NPs are observed to demonstrate inhibitory or active effects on Ca2+ signaling. Thus, understanding Ca2+ signaling by NPs as a key mechanism in signal transduction will progress the application of nano-drugs in various diseases without deleterious effect.
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Affiliation(s)
- Dongun Lee
- Department of Physiology, Lee Gil Ya Cancer & Diabetes Institute, College of Medicine, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, South Korea
| | - Jeong Hee Hong
- Department of Physiology, Lee Gil Ya Cancer & Diabetes Institute, College of Medicine, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, South Korea
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Kim TH, Lee JH, Ahn CB, Hong JH, Son KH, Lee JW. Development of a 3D-Printed Drug-Eluting Stent for Treating Obstructive Salivary Gland Disease. ACS Biomater Sci Eng 2019; 5:3572-3581. [PMID: 33405739 DOI: 10.1021/acsbiomaterials.9b00636] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Most studies of obstructive salivary gland disease have reported only statistical aspects, surgical operations, and prescriptions and have simulated the phenomena occurring in the salivary glands and ductal tissues. However, no direct lesion treatments involving drug-eluting stents have been used to reduce salivary pooling induced by inflammation. In this study, a biodegradable polymer polycaprolactone (PCL)-based antibiotic-eluting stent was developed to treat recurrent obstructive salivary gland disease. The structure's diameter was designed after consideration of the human anatomical structure, and the data were processed in a form suitable for three-dimensional (3D) printing via computer-aided design and manufacturing. After the proper mixing conditions of the antibiotics and PCL were ensured, the optimized printing conditions were secured and the stent was successfully printed with the original lumen size diameter maintained. Amoxicillin and cefotaxime, the antibiotics loaded in this study, did not lose their original antimicrobial activity under the 3D printing process and were effectively released from the constructs for verification of the antimicrobial activity against the causative bacteria according to their concentrations. In addition, antibiotic-eluting stents fabricated in a mesh-like network form were proven stable and capable of sustained release, thereby demonstrating the possibility of treating recurrent obstruction salivary gland disease.
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Affiliation(s)
| | | | | | | | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, College of Medicine, Gachon University, 21, Namdong-daero 774 Beon-gil, Namdong-gu, Incheon, 21565, Republic of Korea
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30
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Kim ST, Kang JH, Lee J, Lee HW, Oh SY, Jang JS, Lee MA, Sohn BS, Yoon SY, Choi HJ, Hong JH, Kim MJ, Kim S, Park YS, Park JO, Lim HY. Capecitabine plus oxaliplatin versus gemcitabine plus oxaliplatin as first-line therapy for advanced biliary tract cancers: a multicenter, open-label, randomized, phase III, noninferiority trial. Ann Oncol 2019; 30:788-795. [PMID: 30785198 DOI: 10.1093/annonc/mdz058] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [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: 12/27/2022] Open
Abstract
BACKGROUND Capecitabine plus oxaliplatin (XELOX) has shown modest activity and tolerable toxicity in a phase II trial for biliary tract cancers (BTCs). Meanwhile, gemcitabine plus oxaliplatin (GEMOX) has been the reference arm in recent phase II and III trials for BTCs. We aimed to investigate the efficacy of XELOX versus GEMOX as first-line therapy for advanced BCTs. PATIENTS AND METHODS In this open-label, randomized, phase III, noninferiority trial, we randomly selected patients with metastatic BCTs to receive GEMOX (gemcitabine 1000 mg/m2 on days 1 and 8, and oxaliplatin 100 mg/m2 on day 1) or XELOX (capecitabine 1000 mg/m2, twice daily, on days 1-14 and oxaliplatin 130 mg/m2 on day 1) as first-line treatment, given every 3 weeks, totaling eight cycles. The primary end point was to prove the noninferiority of XELOX to GEMOX in terms of 6-month progression-free survival (PFS) rate. RESULTS In total, 114 patients randomly received GEMOX and 108 randomly received XELOX. The median PFS was 5.3 months for the GEMOX group and 5.8 months for the XELOX group. The 6-month PFS rate was 44.5% for the GEMOX group and 46.7% for the XELOX group. The 95% confidence interval of the 6-month PFS rate difference between both groups was -12% to 16%, meeting the criteria for noninferiority of XELOX to GEMOX. There was no difference in objective response (P=0.171) and median overall survival (P=0.131) between both groups. The most common grade three to four adverse events were neutropenia and thrombocytopenia. No patient died of treatment-related causes. The XELOX group had significantly lower frequencies of hospital visits than the GEMOX group (P<0.001). CONCLUSION XELOX showed significant noninferiority to GEMOX in terms of 6-month PFS rate. Thus, XELOX could be an alternative first-line treatment of BCTs. TRIAL REGISTRATION This study was registered in ClinicalTrials.gov (number NCT01470443).
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Affiliation(s)
- S T Kim
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - J H Kang
- Division of Hemato-oncology, Department of Medicine, Gyeongsang National University Hospital, Jinju
| | - J Lee
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - H W Lee
- Division of Hemato-oncology, Department of Medicine, Ajou University School of Medicine, Suwon
| | - S Y Oh
- Division of Hemato-oncology, Department of Medicine, Dong-A University School of Medicine, Busan
| | - J S Jang
- Division of Hemato-oncology, Department of Medicine, Chung-Ang University College of Medicine, Seoul
| | - M A Lee
- Division of Hemato-oncology, Department of Medicine, Seoul St Mary's Hospital, Catholic University, Seoul
| | - B S Sohn
- Division of Hemato-oncology, Department of Medicine, Sanggye Paik Hospital, Inje University College of Medicine, Seoul
| | - S Y Yoon
- Division of Hemato-oncology, Department of Medicine, Konkuk University Medical Center, Seoul
| | - H J Choi
- Division of Hemato-oncology, Department of Medicine, Yonsei University College of Medicine, Seoul
| | - J H Hong
- Division of Hemato-oncology, Department of Medicine, Incheon St Mary's Hospital, Catholic University, Incheon
| | - M-J Kim
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, South Korea
| | - S Kim
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, South Korea
| | - Y S Park
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - J O Park
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul.
| | - H Y Lim
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul.
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Abstract
Patients carrying the carbonic anhydrase12 E143K mutation showed the dry mouth phenotype. The mechanism underlying the modulation of aquaporin 5 and function in the salivary glands by carbonic anhydrase12 remains unknown. In this study, we identified the mislocalised aquaporin 5 in the salivary glands carrying the E143K. The intracellular pH of E143K cells was more acidic than that of the cells carrying wild type. To evaluate the role of carbonic anhydrase12 on the volume regulation of aquaporin 5, the submandibular gland cells were subjected to hypotonic stimuli. E143K enhanced the extent of swelling of cells on hypotonicity. Aquaporin 5 modulates water influx through ion transporters to prevent osmotic imbalance. These results suggest that the carbonic anhydrase12 E143K, including acidification or inflammation, mediates volume dysregulation by the loss of aquaporin 5. Thus, carbonic anhydrase12 may determine sensible effects on the cellular osmotic regulation by modulating aquaporin 5.
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Affiliation(s)
- Soyoung Hwang
- a Department of Physiology , College of Medicine, Gachon University , Incheon , Republic of Korea
| | - Jung Yun Kang
- b Department of Oral Biology , BK21 PLUS Project, College of Dentistry, Yonsei University , Seoul , Republic of Korea
| | - Min Jae Kim
- b Department of Oral Biology , BK21 PLUS Project, College of Dentistry, Yonsei University , Seoul , Republic of Korea
| | - Dong Min Shin
- b Department of Oral Biology , BK21 PLUS Project, College of Dentistry, Yonsei University , Seoul , Republic of Korea
| | - Jeong Hee Hong
- a Department of Physiology , College of Medicine, Gachon University , Incheon , Republic of Korea.,c Department of Health Sciences and Technology, GAIHST, Gachon University , Incheon , Republic of Korea
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32
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Hong JH, Charles ST. WELL-BEING AND AGE: A COMPARISON OF TWO CULTURES. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J H Hong
- University of California, Irvine, Irvine, California, United States
| | - S T Charles
- University of California, Irvine, Irvine, CA, USA
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Charles S, Hong JH, Leger KA, Fingerman K. GETTING BY WITH A LITTLE HELP FROM MY FRIENDS: FUNCTIONAL LIMITATIONS AND DAILY EMOTIONAL EXPERIENCES. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Charles
- The University of California, Irvine, Irvine, California, United States
| | - J H Hong
- University of California, Irvine, CA, USA
| | - K A Leger
- University of California, Irvine, CA, USA
| | - K Fingerman
- The University of Texas at Austin, Austin, TX, USA
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Abstract
The aim of this study is to identify optimal patients for adjuvant radiation therapy (ART) in pT3 prostate cancer. The role of ART for patients with adverse pathologic features after radical prostatectomy (RP) has been demonstrated, but over- or under-treatment remains a significant concern. Two-hundred and five patients with pT3N0M0 who underwent robot-assisted RP without ART were analyzed. Multivariate Cox proportional regression analyses were used to identify predictors of biochemical recurrence (BCR) and clinical progression (CP). The estimated 5-year BCR-free survival (BCRFS) and CP-free survival (CPFS) were 52.8% and 85.6%, respectively. Preoperative prostate-specifc antigen (PSA) ≥10 ng ml-1 (hazard ratio [HR]: 3.288-6.027; P = 0.003), pathologic Gleason score (pGS) ≥8 (HR: 4.146; P = 0.014), and lymphovascular invasion (LVI) (HR: 2.167; P = 0.026) were associated with BCR. Based on these factors, a risk stratification tool was developed. Patients with no risk factors (PSA <10 ng ml-1 , pGS 6, and absent LVI) showed excellent BCRFS and CPFS at 5 years (91.9% and 100.0%, respectively), but those with two or more risk factors (PSA ≥10 ng ml-1 , pGS ≥8, or present LVI) had poor BCRFS and CPFS (12.1% and 54.6%, respectively). In addition, the multivariate analysis revealed that pathologic stage pT3b (HR: 5.393; P = 0.025) was the only predictor of CP. Our study demonstrated the heterogeneity of oncologic outcomes in patients with pT3 prostate cancer. The proposed risk stratification can be used to identify patients who are at risk for disease progression and may aid in identifying the best patients for ART.
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Affiliation(s)
- Jeong Hee Hong
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ 08903, USA.,Department of Urology, Dankook University, College of Medicine, Cheonan 31116, South Korea
| | - Young Suk Kwon
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ 08903, USA
| | - Isaac Yi Kim
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, Division of Urology, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ 08903, USA
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Kim HE, Hong JH. The overview of channels, transporters, and calcium signaling molecules during amelogenesis. Arch Oral Biol 2018; 93:47-55. [PMID: 29803993 DOI: 10.1016/j.archoralbio.2018.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 05/18/2018] [Accepted: 05/19/2018] [Indexed: 01/02/2023]
Abstract
Enamel is a highly calcified tissue. Its formation requires a progressive and dynamic system for the regulation of electrolyte concentration by enamel epithelia. A critical function of enamel epithelial cells, ameloblasts, is the secretion and movement of electrolytes via various channels and transporters to develop the enamel tissue. Enamel formation generates protons, which need to be neutralised. Thus, ameloblasts possess a buffering system to sustain mineral accretion. Normal tooth formation involves stage-dependent net fluctuations in pH during amelogenesis. To date, all of our information about ion transporters in dental enamel tissue is based solely on immunostaining-expression techniques. This review critically evaluates the current understanding and recent discoveries and physiological role of ion channels and transporters, Mg2+ transporters, and Ca2+ regulatory proteins during amelogenesis in enamel formation. The ways in which ameloblasts modulate ions are discussed in the context of current research for developing a novel morphologic-functional model of enamel maturation.
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Affiliation(s)
- Hee-Eun Kim
- Department of Dental Hygiene, College of Health Science, Gachon University, 191 Hambangmoe-ro, Yeonsu-gu, Incheon, 21936, South Korea
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, Incheon, 21999, South Korea.
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36
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Kwon YS, Farber N, Yu JW, Rhee K, Han C, Ney P, Hong JH, Lee P, Gupta N, Kim WJ, Kim IY. Longitudinal recovery patterns of penile length and the underexplored benefit of long-term phosphodiesterase-5 inhibitor use after radical prostatectomy. BMC Urol 2018; 18:37. [PMID: 29739455 PMCID: PMC5941788 DOI: 10.1186/s12894-018-0341-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 04/18/2018] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Penile length (PL) shortening is an underreported phenomenon following radical prostatectomy (RP) and risk factors are not fully explored. We aimed to describe longitudinal patterns of PL recovery and evaluate factors predicting complete return to baseline PL. METHODS PL measurement was performed during a preoperative and postoperative follow-up visits at 7 days and 3, 6, 9, and 12 months. Patients who completely recovered (CR: N = 397) their preoperative stretched PL measured during at least one of their follow-up visits were compared to those with incomplete recovery (IR: N = 131). Recovery patterns were analyzed for both groups and were also compared in regards to demographics, nerve-sparing techniques, prostate size, cardiovascular risk profiles, and phosphodiesterase-5 inhibitor (PDE5i) uses. Logistic regression analyses were performed using age and other relevant clinicopathologic variables to predict PL recovery. RESULTS 60.2% of the total study population regained their preoperative PL at 12 months. Average percent (length) differences from baseline were - 1.70% (- 0.25 cm) and - 16.42% (- 2.35 cm) in the CR and the IR groups, respectively (p < 0.001). Multivariate logistic regression demonstrated that younger age (OR 0.962; 95%CI 0.931-0.994; p = 0.019), high preoperative erectile function (EF) (OR 1.028; 95%CI 1.001-1.056; p = 0.046), and consistent PDE5i use (OR 1.998; 95%CI 1.166-3.425; p = 0.012) were independent predictors of CR. At 12-month follow up, PL difference for consistent PDE5iusers was statistically different from those who did not use PDE5i consistently (- 3.25%vs. -6.64%; P = 0.001). CONCLUSION Age, preoperative EF, and consistent use of PDE5i were associated with complete recovery of baseline PL after RP. The therapeutic effect of PDE5i was most pronounced at 12-month visit, suggesting an added benefit with long-term use.
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Affiliation(s)
- Young Suk Kwon
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA.,Division of Urology, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Nicholas Farber
- Division of Urology, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Ji Woong Yu
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kevin Rhee
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA
| | - Christopher Han
- Division of Urology, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Patrick Ney
- Department of Biostatistics, Rutgers School of Public Health, Piscataway, NJ, USA
| | - Jeong Hee Hong
- Department of Urology, Dankook University College of Medicine, Chungnam, Korea
| | - Paul Lee
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA
| | - Nikhil Gupta
- Division of Urology, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Wun-Jae Kim
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Isaac Yi Kim
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA. .,Division of Urology, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA.
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Kim S, Lee YK, Hong JH, Park J, Choi Y, Lee DU, Choi J, Sym SJ, Kim S, Khang D. Mutual Destruction of Deep Lung Tumor Tissues by Nanodrug-Conjugated Stealth Mesenchymal Stem Cells. Adv Sci (Weinh) 2018; 5:1700860. [PMID: 29876212 PMCID: PMC5979625 DOI: 10.1002/advs.201700860] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 01/29/2018] [Indexed: 05/11/2023]
Abstract
Lung cancer is a highly malignant tumor, and targeted delivery of anti-cancer drugs to deep lung tumor tissue remains a challenge in drug design. Here, it is demonstrated that bone marrow mesenchymal stem cells armed with nanodrugs are highly targeted and mutually destructive with malignant lung cancer cells and successfully eradicate lung tumors tissues. Using this approach, the current clinical dose of anti-cancer drugs for the treatment of malignant lung tumors can be decreased by more than 100-fold without triggering immunotoxicity.
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Affiliation(s)
- Sang‐Woo Kim
- Lee Gil Ya Cancer and Diabetes InstituteGachon UniversityIncheon21999South Korea
| | - Yeon Kyung Lee
- Lee Gil Ya Cancer and Diabetes InstituteGachon UniversityIncheon21999South Korea
| | - Jeong Hee Hong
- Lee Gil Ya Cancer and Diabetes InstituteGachon UniversityIncheon21999South Korea
- Department of PhysiologySchool of MedicineGachon UniversityIncheon21999South Korea
| | - Jun‐Young Park
- Lee Gil Ya Cancer and Diabetes InstituteGachon UniversityIncheon21999South Korea
| | - Young‐Ae Choi
- Department of PharmacologySchool of MedicineKyungpook National UniversityDaegu41566South Korea
| | - Dong Un Lee
- Lee Gil Ya Cancer and Diabetes InstituteGachon UniversityIncheon21999South Korea
| | - Jungil Choi
- Gyeongnam Department of Environmental Toxicology and ChemistryKorea Institute of ToxicologyJinju52834South Korea
| | - Sun Jin Sym
- Division of Hematology and OncologySchool of MedicineGachon University and Gil HospitalIncheon21565South Korea
| | - Sang‐Hyun Kim
- Department of PharmacologySchool of MedicineKyungpook National UniversityDaegu41566South Korea
| | - Dongwoo Khang
- Lee Gil Ya Cancer and Diabetes InstituteGachon UniversityIncheon21999South Korea
- Department of PhysiologySchool of MedicineGachon UniversityIncheon21999South Korea
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Abstract
INTRODUCTION Enzalutamide is the first approved second-generation androgen receptor (AR) antagonist in the treatment of metastatic castration-resistant prostate cancer (mCRPC) with or without docetaxel-based chemotherapy. Over the past 5 years, a number of attempts were made to determine the efficacy of enzalutamide in the different clinical settings. Areas covered: A literature search was performed at the PubMed, Embase, and Web of Science database to collect the most relevant and impactful studies, including basic science investigations, clinical trials, and reviews. This article focuses on the pharmacology, efficacy, tolerability, and future perspective of enzalutamide. Expert opinion: The treatment paradigm of CRPC has been dramatically challenged of late. Enzalutamide are in wide use because of its favorable efficacy and safety, but primary or acquired resistance to the drug will eventually develop. Further studies are thus necessary to identify appropriate patients who can achieve apparent benefits from enzalutamide alone or in combination with other drugs.
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Affiliation(s)
- Jeong Hee Hong
- a Department of Urology , Dankook University College of Medicine , Cheonan , Republic of Korea
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Pyo H, Kim BR, Park M, Hong JH, Kim EJ. Effects of Overactive Bladder Symptoms in Stroke Patients' Health Related Quality of Life and Their Performance Scale. Ann Rehabil Med 2018; 41:935-943. [PMID: 29354569 PMCID: PMC5773436 DOI: 10.5535/arm.2017.41.6.935] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 05/02/2017] [Indexed: 11/10/2022] Open
Abstract
Objective To identify the effects of overactive bladder (OAB) symptoms on the health-related quality of life (HRQOL) in stroke patients since OAB symptoms are common in such patients, but their effects on stroke rehabilitation over time are unclear. Methods This study included 30 post-acute stroke patients who had been admitted for rehabilitation treatments. All participants completed a questionnaire evaluating urinary symptoms, including the Overactive Bladder Symptom Score (OABSS) and general HRQOL with a Short-Form 36 (SF-36) health survey. We assessed their performance in terms of the Function Ambulation Category, Modified Rankin Scale (MRS), Modified Barthel Index, and Mini-Mental State Examination (MMSE). All assessments were carried out twice at baseline and at 3 months. We divided patients into an OAB and non-OAB group with OABSS. A correlation analysis and multivariate regression were then performed. Results All performance scales showed an improvement over 3 months in the non-OAB group (n=18; p<0.02), but, MRS and MMSE scores did not improve significantly in the OAB group (n=12) (p=0.15 and p=0.20, respectively). In the OAB group, the vitality and mental health scores significantly decreased over 3 months (p=0.011 and p=0,041, respectively), and the mental component summary (MCS) score showed a marginal decrease over 3 months (p=0.05). A multivariate regression analysis revealed that OAB symptoms were negatively correlated with the 3 months MCS score (B=−8.15, p=0.034). Conclusion These results indicated that OAB symptoms could have negative effects on HRQOL and performance in patients suffering from a stroke.
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Affiliation(s)
- Hannah Pyo
- Department of Physical Medicine and Rehabilitation, National Rehabilitation Center, Seoul, Korea
| | - Bo Ra Kim
- Department of Physical Medicine and Rehabilitation, National Rehabilitation Center, Seoul, Korea
| | - Mina Park
- Department of Physical Medicine and Rehabilitation, National Rehabilitation Center, Seoul, Korea
| | - Jeong Hee Hong
- Department of Urology, Dankook University College of Medicine, Cheonan, Korea
| | - Eun Joo Kim
- Department of Physical Medicine and Rehabilitation, National Rehabilitation Center, Seoul, Korea
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Abstract
Pneumomediastinum is an uncommon radiographic finding resulting from various causes, such as trauma, infection and unknown causes. The pneumomediastinum due to minor trauma is rarely reported and treatment and diagnostic process is not established. We report on a 20-year-old female patient who initially presented with neck pain and dyspnoea following manual strangulation. Her chest X-ray and computed tomography (CT) of neck imaging showed subcutaneous emphysema and extensive pneumomediastinum, but pneumothorax was not shown. She was transferred to the thoracic surgery and admitted to the general ward. The patient's condition improved and she was discharged on the sixth hospital day. In conclusion, patients with pneumomediastinum following a minor strangulation injury can be observed alone without invasive testing or repeated imaging. CT scans are of great value for safe observation in determined patients and for the further evaluation of pneumomediastinum.
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Affiliation(s)
| | | | | | - JH Hong
- Chung-Ang University Hosiptal, Department of Thoracic and Cardiovascular Surgery, College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, Korea
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41
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Kim SW, Kyung Lee Y, Yeon Lee J, Hee Hong J, Khang D. PEGylated anticancer-carbon nanotubes complex targeting mitochondria of lung cancer cells. Nanotechnology 2017; 28:465102. [PMID: 29053471 DOI: 10.1088/1361-6528/aa8c31] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Although activating apoptosis in cancer cells by targeting the mitochondria is an effective strategy for cancer therapy, insufficient targeting of the mitochondria in cancer cells restricts the availability in clinical treatment. Here, we report on a polyethylene glycol-coated carbon nanotube (CNT)-ABT737 nanodrug that improves the mitochondrial targeting of lung cancer cells. The polyethylene glycol-coated CNT-ABT737 nanodrug internalized into the early endosomes via macropinocytosis and clathrin-mediated endocytosis in advance of early endosomal escape and delivered into the mitochondria. Cytosol release of the nanodrug led to apoptosis of lung cancer cells by abruption of the mitochondrial membrane potential, inducing Bcl-2-mediated apoptosis and generating intracellular reactive oxygen species. As such, this study provides an effective strategy for increasing the anti-lung cancer efficacy by increasing mitochondria accumulation rate of cytosol released anticancer nanodrugs.
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Affiliation(s)
- Sang-Woo Kim
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
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Seon CR, Hong JH, Song I, Jang J, Lee HY, An YH, Kim BS, Jeon TM, Park JS, Choe W, Lee HG, Pak S, Cheon MS, Choi JH, Kim HS, Biel W, Bernascolle P, Barnsley R. VUV spectroscopy in impurity injection experiments at KSTAR using prototype ITER VUV spectrometer. Rev Sci Instrum 2017; 88:083511. [PMID: 28863699 DOI: 10.1063/1.4998970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ITER vacuum ultra-violet (VUV) core survey spectrometer has been designed as a 5-channel spectral system so that the high spectral resolving power of 200-500 could be achieved in the wavelength range of 2.4-160 nm. To verify the design of the ITER VUV core survey spectrometer, a two-channel prototype spectrometer was developed. As a subsequent step of the prototype test, the prototype VUV spectrometer has been operated at KSTAR since the 2012 experimental campaign. From impurity injection experiments in the years 2015 and 2016, strong emission lines, such as Kr xxv 15.8 nm, Kr xxvi 17.9 nm, Ne vii 46.5 nm, Ne vi 40.2 nm, and an array of largely unresolved tungsten lines (14-32 nm) could be measured successfully, showing the typical photon number of 1013-1015 photons/cm2 s.
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Affiliation(s)
- C R Seon
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - J H Hong
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - I Song
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - J Jang
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - H Y Lee
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - Y H An
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - B S Kim
- Department of Energy Systems Research, Ajou University, Suwon 443-749, South Korea
| | - T M Jeon
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - J S Park
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - W Choe
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - H G Lee
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - S Pak
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - M S Cheon
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - J H Choi
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - H S Kim
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - W Biel
- Institut für Plasmaphysik, Forschungszentrum Jülich Gmbh, EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - P Bernascolle
- ITER Organization, Route de Vinon-sur-Verdon - CS 90 046, 13067 Saint-Paul-lez-Durance, France
| | - R Barnsley
- ITER Organization, Route de Vinon-sur-Verdon - CS 90 046, 13067 Saint-Paul-lez-Durance, France
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Kim SW, Lee YK, Kim SH, Park JY, Lee DU, Choi J, Hong JH, Kim S, Khang D. Covalent, Non-Covalent, Encapsulated Nanodrug Regulate the Fate of Intra- and Extracellular Trafficking: Impact on Cancer and Normal Cells. Sci Rep 2017; 7:6454. [PMID: 28743942 PMCID: PMC5526881 DOI: 10.1038/s41598-017-06796-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 03/29/2017] [Accepted: 06/28/2017] [Indexed: 11/20/2022] Open
Abstract
Drugs need to be designed to access the designated intracellular organelle compartments in order to maximize anticancer efficacy. This study identified that covalently conjugated, non-covalent polyethylene glycol coated and encapsulated nanodrugs selectively influence drug uptake, the intracellular and extracellular trafficking of cancer cells. The types of nano conjugation modulated intracellular dynamics associated with differential impact on anti-cancer efficacy, but also induced differential cytotoxicity on cancer versus normal cells. In conclusion, this study demonstrated the importance of selecting the appropriate type of nano-conjugation for delivering organelle specific, active chemotherapeutic agents through controlled intracellular trafficking.
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Affiliation(s)
- Sang-Woo Kim
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea
| | - Yeon Kyung Lee
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea
| | - Sang-Hyun Kim
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, 41566, South Korea
| | - Jun-Young Park
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea
| | - Dong Un Lee
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea
| | - Jungil Choi
- Gyeongnam Department of Environment Toxicology and Chemistry, Korea Institutes of Toxicology, Jinju, 52834, South Korea
| | - Jeong Hee Hong
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea.,Department of Physiology, College of Medicine, Gachon University, Incheon, 21999, South Korea
| | - Sanghyo Kim
- Department of Bionanotechnology, Gachon University, Seongnam, 13120, South Korea.
| | - Dongwoo Khang
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea. .,Department of Physiology, College of Medicine, Gachon University, Incheon, 21999, South Korea.
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Lee DU, Ji MJ, Kang JY, Kyung SY, Hong JH. Dust particles-induced intracellular Ca 2+ signaling and reactive oxygen species in lung fibroblast cell line MRC5. Korean J Physiol Pharmacol 2017; 21:327-334. [PMID: 28461775 PMCID: PMC5409120 DOI: 10.4196/kjpp.2017.21.3.327] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 12/28/2016] [Accepted: 01/05/2017] [Indexed: 02/07/2023]
Abstract
Epidemiologic interest in particulate matter (PM) is growing particularly because of its impact of respiratory health. It has been elucidated that PM evoked inflammatory signal in pulmonary epithelia. However, it has not been established Ca2+ signaling mechanisms involved in acute PM-derived signaling in pulmonary fibroblasts. In the present study, we explored dust particles PM modulated intracellular Ca2+ signaling and sought to provide a therapeutic strategy by antagonizing PM-induced intracellular Ca2+ signaling in human lung fibroblasts MRC5 cells. We demonstrated that PM10, less than 10 µm, induced intracellular Ca2+ signaling, which was mediated by extracellular Ca2+. The PM10-mediated intracellular Ca2+ signaling was attenuated by antioxidants, phospholipase blockers, polyADPR polymerase 1 inhibitor, and transient receptor potential melastatin 2 (TRPM2) inhibitors. In addition, PM-mediated increases in reactive oxygen species were attenuated by TRPM2 blockers, clotrimazole (CLZ) and N-(p-amylcinnamoyl) anthranilic acid (ACA). Our results showed that PM10 enhanced reactive oxygen species signal by measuring DCF fluorescence and the DCF signal attenuated by both TRPM2 blockers CLZ and ACA. Here, we suggest functional inhibition of TRPM2 channels as a potential therapeutic strategy for modulation of dust particle-mediated signaling and oxidative stress accompanying lung diseases.
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Affiliation(s)
- Dong Un Lee
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, Incheon 21999, Korea
| | - Min Jeong Ji
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, Incheon 21999, Korea
| | - Jung Yun Kang
- Department of Oral Biology, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Sun Young Kyung
- Division of Pulmonary, Allergy and Critical Care Medicine, Gachon University, Gil Medical Center, Incheon 21565, Korea
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, Incheon 21999, Korea
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Shin DH, Kim YS, Yoo DS, Kim MJ, Oh CS, Hong JH, Lee E, Chai JY, Seo M. A Case of Ectopic Paragonimiasis in a 17th Century Korean Mummy. J Parasitol 2017; 103:399-403. [PMID: 28395568 DOI: 10.1645/16-63] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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
Archaeoparasitological studies on fossilized feces obtained from Joseon Dynasty (1392-1910 CE) mummies have provided invaluable data on the patterns of parasitic infection in pre-modern Korean societies. In our recent radiological investigation of a 17th century Joseon mummy discovered in Cheongdo (South Korea), we located a liver mass just below the diaphragm. Anatomical dissection confirmed the presence of a mass of unknown etiology. A subsequent parasitological examination of a sample of the mass revealed a large number of ancient Paragonimus sp. eggs, making the current report the first archaeoparasitological case of liver abscess caused by ectopic paragonimiasis.
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Affiliation(s)
- D H Shin
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - Y-S Kim
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - D S Yoo
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - M J Kim
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - C S Oh
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - J H Hong
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - E Lee
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - J Y Chai
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - M Seo
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
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Ji M, Park CK, Lee JW, Park KY, Son KH, Hong JH. Two Phase Modulation of [Formula: see text] Entry and Cl -/[Formula: see text] Exchanger in Submandibular Glands Cells by Dexmedetomidine. Front Physiol 2017; 8:86. [PMID: 28298895 PMCID: PMC5331071 DOI: 10.3389/fphys.2017.00086] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 01/30/2017] [Indexed: 12/15/2022] Open
Abstract
Dexmedetomidine (Dex), a highly selective α2-adrenoceptor agonist, attenuates inflammatory responses induced by lipopolysaccharide (LPS) and induces sedative and analgesic effects. Administration of Dex also reduces salivary secretion in human subjects and inhibits osmotic water permeability in rat cortical collecting ducts. However, little is known about the mechanisms underlying the effects of Dex on salivary glands fluid secretion. We demonstrated the α2-adrenoceptor expression in the basolateral membrane of mouse submandibular glands (SMG). To investigate fluid secretion upon treatment with Dex, we studied the effects of Dex on the activity of Na+-K+-2Cl- cotransporter1 (NKCC1) and Cl-/[Formula: see text] exchange (CBE), and on downstream pro-inflammatory cytokine expression in isolated primary mouse SMG cells. Dex acutely increased CBE activity and NKCC1-mediated and independent [Formula: see text] entry in SMG duct cells, and enhanced ductal fluid secretion in a sealed duct system. Dex showed differential effects on cholinergic/adrenergic stimulations and inflammatory mediators, histamine, and LPS, stimulations-induced Ca2+ in mouse SMG cells. Both, histamine- and LPS-induced intracellular Ca2+ increases were inhibited by Dex, whereas carbachol-stimulated Ca2+ signals were not. Long-lasting (2 h) treatment with Dex reduced CBE activity in SMG and in human submandibular glands (HSG) cells. Moreover, when isolated SMG cells were stimulated with Dex for 2 h, phosphodiesterase 4D (PDE4D) expression was enhanced. These results confirm the anti-inflammatory properties of Dex on LPS-mediated signaling. Further, Dex also inhibited mRNA expression of interleukin-6 and NADPH oxidase 4. The present study also showed that α2-adrenoceptor activation by Dex reduces salivary glands fluid secretion by increasing PDE4D expression, and subsequently reducing the concentration of cAMP. These findings reveal an interaction between the α2-adrenoceptor and PDE4D, which should be considered when using α2-adrenoceptor agonists as sedative or analgesics.
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Affiliation(s)
- Minjeong Ji
- Department of Physiology, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon UniversityIncheon, South Korea
| | - Chul-Kyu Park
- Department of Physiology, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon UniversityIncheon, South Korea
| | - Jin Woo Lee
- Department of Molecular Medicine, School of Medicine, Lee Gil Ya Cancer and Diabetes Institute, Gachon UniversityIncheon, South Korea
| | - Kook Yang Park
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon UniversityIncheon, South Korea
| | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon UniversityIncheon, South Korea
| | - Jeong Hee Hong
- Department of Physiology, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon UniversityIncheon, South Korea
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Lee S, Park HT, Hong JH, Song JY, Lee JK, Kim T. Paratubal Borderline Malignancy in an Adolescent Female Treated with Laparo-Endoscopic Single-Site Surgery (LESS) and a Review of the Literature. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
INTRODUCTION Phosphodiesterase type 5 inhibitors (PDE5Is) are the first-line drugs in the management of erectile dysfunction (ED). However, over the past two decades tremendous efforts have been made to identify new clinical uses of PDE5Is beyond their roles in ED. Areas covered: Basic science articles, clinical trials, reviews, and meta-analysis published between 1996 and 2015 were searched using MEDLINE (PubMed interface) to collect the most relevant and impactful studies from our perspectives as practicing urologists. This review mainly focuses on the level one evidence-based clinical efficacy and drug-related toxicity of oral PDE5Is. In addition, drug discovery, pharmacokinetics and pharmacodynamics, potential use in other diseases, and future directions are discussed. Expert opinion: On-demand PED5Is for the treatment of ED has shifted toward chronic administration in a broad spectrum of conditions that are thought to be associated with endovascular health. Several studies have shown that PDE5Is may play a cardioprotective or neuroprotective role. Further studies are under way to verify beneficial effects of PDE5I in non-urological conditions.
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Affiliation(s)
- Jeong Hee Hong
- a Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Division of Urology , Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey , New Brunswick , NJ , USA.,b Department of Urology , Dankook University College of Medicine , Cheonan , South Korea
| | - Young Suk Kwon
- a Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Division of Urology , Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey , New Brunswick , NJ , USA
| | - Isaac Yi Kim
- a Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Division of Urology , Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey , New Brunswick , NJ , USA
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Abstract
Carbon nanotubes (CNTs) have received increasing attention in biomedical fields because of their unique structures and properties, including high aspect ratios, large surface areas, rich surface chemical functionalities, and size stability on the nanoscale. Particularly, they are attractive as carriers and mediators for cancer therapy. Through appropriate functionalization, CNTs have been used as nanocarriers for anticancer drugs including doxorubicin, camptothecin, carboplatin, cisplatin, paclitaxel, Pt(II), and Pt(IV), and genes including plasmid DNA, small-interfering RNA, oligonucleotides, and RNA/DNA aptamers. CNTs can also deliver proteins and immunotherapy components. Using combinations of light energy, they have also been applied as mediators for photothermal therapy and photodynamic therapy to directly destroy cancer cells without severely damaging normal tissue. If limitations such as a long-term cytotoxicity in the body, lack of size uniformity during the synthetic process, loading deviations for drug–CNT complexes, and release controllability at the target point are overcome, CNTs will become one of the strongest tools that are available for various other biomedical fields as well as for cancer therapy.
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Affiliation(s)
- Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center
| | | | - Jin Woo Lee
- Department of Molecular Medicine, School of Medicine, Gachon University, Incheon, Republic of Korea
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50
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Chung SP, Yune HY, Park YS, You JS, Hong JH, Kong T, Park JW, Chung HS, Park I. Usefulness of mean platelet volume as a marker for clinical outcomes after out-of-hospital cardiac arrest: a retrospective cohort study. J Thromb Haemost 2016; 14:2036-2044. [PMID: 27437641 DOI: 10.1111/jth.13421] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 06/27/2016] [Indexed: 01/06/2023]
Abstract
Essentials It is unknown whether mean platelet volume (MPV) estimates outcomes after cardiac arrest (CA). We investigated whether MPV was associated with 30-day neurologic outcome and mortality after CA. Elevated MPV at admission was associated with poor neurological outcomes and mortality at 30 days. Identifying levels of MPV is helpful for estimating disease severity among resuscitated patients. SUMMARY Background Whole-body ischemia followed by reperfusion during cardiac arrest and after return of spontaneous circulation (ROSC) triggers systemic sterile inflammatory responses, inducing a sepsis-like state during post-cardiac arrest syndrome. Activated platelets are enlarged, and contain vasoactive and prothrombic factors that aggravate systemic inflammation and endothelial dysfunction. Objectives To investigate whether mean platelet volume (MPV) is useful as a marker for early mortality and neurologic outcomes in patients who achieve ROSC after out-of-hospital cardiac arrest (OHCA). Methods OHCA records from the Emergency Department Cardiac Arrest Registry were retrospectively analyzed. Patients who survived for > 24 h after ROSC were included. We evaluated mortality and cerebral performance category scores after 30 days. Results We analyzed records from 184 patients with OHCA. Increased 30-day mortality among patients who achieved ROSC after OHCA was associated with MPV at admission (hazard ratio [HR] 1.36; 95% confidence interval [CI] 1.06-1.75). An elevated MPV at admission was also associated with poor neurologic outcomes (HR 1.28; 95% CI 1.06-1.55). Conclusions An elevated MPV was independently associated with increased 30-day mortality, with the highest discriminative value being obtained upon admission after OHCA. An elevated MPV on admission was associated with poor neurologic outcomes. High MPVs are helpful for estimating 30-day mortality and neurologic outcomes among patients who achieve ROSC after OHCA.
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Affiliation(s)
- S P Chung
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - H Y Yune
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Y S Park
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J S You
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea.
| | - J H Hong
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - T Kong
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J W Park
- Department of Emergency Medicine, Kosin University College of Medicine, Busan, Korea
| | - H S Chung
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - I Park
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
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