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Kim SB, Hwang S, Cha JY, Lee HJ. Programmed Death Ligand 1 Regulatory Crosstalk with Ubiquitination and Deubiquitination: Implications in Cancer Immunotherapy. Int J Mol Sci 2024; 25:2939. [PMID: 38474186 DOI: 10.3390/ijms25052939] [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: 02/05/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Programmed death ligand 1 (PD-L1) plays a pivotal role in cancer immune evasion and is a critical target for cancer immunotherapy. This review focuses on the regulation of PD-L1 through the dynamic processes of ubiquitination and deubiquitination, which are crucial for its stability and function. Here, we explored the intricate mechanisms involving various E3 ubiquitin ligases and deubiquitinating enzymes (DUBs) that modulate PD-L1 expression in cancer cells. Specific ligases are discussed in detail, highlighting their roles in tagging PD-L1 for degradation. Furthermore, we discuss the actions of DUBs that stabilize PD-L1 by removing ubiquitin chains. The interplay of these enzymes not only dictates PD-L1 levels but also influences cancer progression and patient response to immunotherapies. Furthermore, we discuss the therapeutic implications of targeting these regulatory pathways and propose novel strategies to enhance the efficacy of PD-L1/PD-1-based therapies. Our review underscores the complexity of PD-L1 regulation and its significant impact on the tumor microenvironment and immunotherapy outcomes.
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Affiliation(s)
- Soon-Bin Kim
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
| | - Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Ji-Young Cha
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Ho-Jae Lee
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
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Yaseen U, Hwang S, Park S, Kim SB, Lee HJ, Cha JY. New Insights into the Role of KLF10 in Tissue Fibrosis. Int J Mol Sci 2024; 25:1276. [PMID: 38279278 PMCID: PMC10816924 DOI: 10.3390/ijms25021276] [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: 01/14/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024] Open
Abstract
Fibrosis, characterized by excessive extracellular matrix accumulation, disrupts normal tissue architecture, causes organ dysfunction, and contributes to numerous chronic diseases. This review focuses on Krüppel-like factor 10 (KLF10), a transcription factor significantly induced by transforming growth factor-β (TGF-β), and its role in fibrosis pathogenesis and progression across various tissues. KLF10, initially identified as TGF-β-inducible early gene-1 (TIEG1), is involved in key biological processes including cell proliferation, differentiation, apoptosis, and immune responses. Our analysis investigated KLF10 gene and protein structures, interaction partners, and context-dependent functions in fibrotic diseases. This review highlights recent findings that underscore KLF10 interaction with pivotal signaling pathways, such as TGF-β, and the modulation of gene expression in fibrotic tissues. We examined the dual role of KLF10 in promoting and inhibiting fibrosis depending on tissue type and fibrotic context. This review also discusses the therapeutic potential of targeting KLF10 in fibrotic diseases, based on its regulatory role in key pathogenic mechanisms. By consolidating current research, this review aims to enhance the understanding of the multifaceted role of KLF10 in fibrosis and stimulate further research into its potential as a therapeutic target in combating fibrotic diseases.
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Affiliation(s)
- Uzma Yaseen
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (U.Y.); (S.P.); (S.-B.K.)
| | - Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
| | - Sangbin Park
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (U.Y.); (S.P.); (S.-B.K.)
| | - Soo-Bin Kim
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (U.Y.); (S.P.); (S.-B.K.)
| | - Ho-Jae Lee
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (U.Y.); (S.P.); (S.-B.K.)
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
| | - Ji-Young Cha
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (U.Y.); (S.P.); (S.-B.K.)
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
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Hwang S, Park S, Kim J, Oh AR, Lee HJ, Cha JY. Role of Carbohydrate response element-binding protein in mediating dexamethasone-induced glucose transporter 5 expression in Caco-2BBE cells and during the developmental phase in mice. Anim Cells Syst (Seoul) 2024; 28:15-24. [PMID: 38192641 PMCID: PMC10773644 DOI: 10.1080/19768354.2023.2301009] [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: 11/20/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024] Open
Abstract
Glucose transporter 5 (GLUT5), the main fructose transporter in mammals, is primarily responsible for absorbing dietary fructose in the small intestine. The expression of this intestinal gene significantly increases in response to developmental and dietary cues that reach the glucocorticoid receptor and carbohydrate response element-binding protein (ChREBP), respectively. Our study demonstrates that ChREBP is involved in the dexamethasone (Dex)-induced expression of GLUT5 in Caco-2BBE cells and the small intestine of both wild-type and ChREBP-knockout mice. Dex, a glucocorticoid, demonstrated an increase in GLUT5 mRNA levels in a dose- and time-dependent manner. While the overexpression of ChREBP moderately increased GLUT5 expression, its synergistic increase in the presence of Dex was noteworthy, whereas the suppression of ChREBP significantly reduced Dex-induced GLUT5 expression. Dex did not increase ChREBP protein levels but facilitated its nuclear translocation, thereby increasing the activity of the GLUT5 promoter. In vivo experiments conducted on 14-day-old mice pups treated with Dex for three days revealed that only wild-type mice (not ChREBP-knockout mice) exhibited Dex-mediated Glut5 gene induction, which further supports the role of ChREBP in regulating GLUT5 expression. Collectively, our results provide insights into the molecular mechanisms involved in the regulation of GLUT5 expression in response to developmental and dietary signals mediated by glucocorticoids and ChREBP. General significance: The transcription factor ChREBP is important for Dex-mediated Glut5 gene expression in the small intestine.
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Affiliation(s)
- Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon, Republic of Korea
| | - Sangbin Park
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea
| | - Jaewan Kim
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea
| | - Ah-Reum Oh
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea
| | - Ho-Jae Lee
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon, Republic of Korea
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea
| | - Ji-Young Cha
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon, Republic of Korea
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea
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Jo M, Hwang S, Lee CG, Hong JE, Kang DH, Yoo SH, Kim WS, Yoo JY, Rhee KJ. Promotion of Colitis in B Cell-Deficient C57BL/6 Mice Infected with Enterotoxigenic Bacteroides fragilis. Int J Mol Sci 2023; 25:364. [PMID: 38203534 PMCID: PMC10778593 DOI: 10.3390/ijms25010364] [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: 11/23/2023] [Revised: 12/22/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Enterotoxigenic Bacteroides fragilis (ETBF) causes colitis and is implicated in inflammatory bowel diseases and colorectal cancer. The ETBF-secreted B. fragilis toxin (BFT) causes cleavage of the adherence junction, the E-cadherin, resulting in the large intestine showing IL-17A inflammation in wild-type (WT) mice. However, intestinal pathology by ETBF infection is not fully understood in B-cell-deficient mice. In this study, ETBF-mediated inflammation was characterized in B-cell-deficient mice (muMT). WT or muMT C57BL/6J mice were orally inoculated with ETBF and examined for intestinal inflammation. The indirect indicators for colitis (loss of body weight and cecum weight, as well as mortality) were increased in muMT mice compared to WT mice. Histopathology and inflammatory genes (Nos2, Il-1β, Tnf-α, and Cxcl1) were elevated and persisted in the large intestine of muMT mice compared with WT mice during chronic ETBF infection. However, intestinal IL-17A expression was comparable between WT and muMT mice during infection. Consistently, flow cytometry analysis applied to the mesenteric lymph nodes showed a similar Th17 immune response in both WT and muMT mice. Despite elevated ETBF colonization, the ETBF-infected muMT mice showed no histopathology or inflammation in the small intestine. In conclusion, B cells play a protective role in ETBF-induced colitis, and IL-17A inflammation is not attributed to prompted colitis in B-cell-deficient mice. Our data support the fact that B cells are required to ameliorate ETBF infection-induced colitis in the host.
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Affiliation(s)
- Minjeong Jo
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Chang-Gun Lee
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
| | - Ju-Eun Hong
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
| | - Da-Hye Kang
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
| | - Sang-Hyeon Yoo
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
| | - Woo-Seung Kim
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
| | - Jung-Yoon Yoo
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University Mirae Campus, Wonju 26493, Republic of Korea; (M.J.); (S.H.); (C.-G.L.); (J.-E.H.); (D.-H.K.); (S.-H.Y.); (W.-S.K.); (J.-Y.Y.)
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5
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Hwang S. Non-standard employment and COVID-19 testing in South Korean workers. Public Health 2023; 225:133-140. [PMID: 37925837 DOI: 10.1016/j.puhe.2023.09.025] [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: 05/14/2023] [Revised: 08/28/2023] [Accepted: 09/26/2023] [Indexed: 11/07/2023]
Abstract
OBJECTIVES SARS-CoV-2 testing has been critical in monitoring and containing the COVID-19 pandemic, but there is a dearth of studies on how individuals' adherence to testing varies according to their working conditions. This study aimed to investigate the association between the type of employment contract and COVID-19 testing among wage workers in South Korea. STUDY DESIGN We used a nationally representative sample of employees aged 20-65 years collected from March 24 to 31, 2022. To focus on individual responses when the test was recommended, our sample consisted of 1266 participants who had experienced symptoms of COVID-19 or had been exposed to a confirmed case in the household. METHODS We used multivariate logistic regression to estimate the association between the odds of receiving a PCR test and the type of employment contract while controlling for other potential covariates. RESULTS The percentage of participants who had a SARS-CoV-2 PCR test was 77.8%. After adjusting for all potential covariates, daily workers (OR = 0.35, 95% CI 0.18 to 0.70, P = 0.003) and part-time workers (OR = 0.58, 95% CI 0.39 to 0.86, P = 0.007) had significantly lower odds of being tested relative to standard workers. Other temporary or atypical workers showed no significant differences from standard workers. CONCLUSION Our findings suggested that individuals in the most vulnerable job positions, with less job security and working hours, exhibited a decreased inclination to undergo COVID-19 testing. More effective job retention and income support policies are required to improve compliance.
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Affiliation(s)
- S Hwang
- Department of Economics, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, Republic of Korea.
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Lachant D, Minkin R, Swisher J, Mogri M, Zolty R, Hwang S, Seaman S, Broderick M, Sahay S. Safety and efficacy of transitioning from selexipag to oral treprostinil in pulmonary arterial hypertension: Findings from the ADAPT registry. Pulm Pharmacol Ther 2023; 82:102232. [PMID: 37451609 DOI: 10.1016/j.pupt.2023.102232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/26/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023]
Abstract
PURPOSE Oral treprostinil and selexipag are drugs targeting the prostacyclin pathway and are approved for treatment of pulmonary arterial hypertension (PAH). In the setting of unsatisfactory clinical response or tolerability issues while on selexipag, there is little data on clinical benefit, safety, or strategies on transitioning to oral treprostinil. Using prospective data from the ADAPT registry, we aimed to evaluate clinical outcomes, safety, and transition strategies in ten patients with PAH transitioning from selexipag to oral treprostinil. METHODS ADAPT was a prospective, real-world, multicenter, United States-based registry of patients with PAH newly started on oral treprostinil, with a cohort of patients (n = 10) transitioning from selexipag to oral treprostinil. PAH variables of interest were collected from standard-of-care clinic visits. Clinical improvement was defined by modified REPLACE criterion, and risk was assessed by REVEAL Lite 2 from baseline to last follow-up. Real world transition strategies were recorded. Healthcare utilization or worsening PAH was evaluated within 30 days of transitions. RESULTS Seven patients transitioned due to worsening PAH or lack of efficacy on selexipag, and three patients transitioned due to tolerability issues. Based on the modified REPLACE criterion, five patients demonstrated clinical improvement after transition from selexipag to oral treprostinil. Using REVEAL Lite 2 to assess risk, three patients improved and five patients maintained risk category from baseline to last follow-up. All transitions occurred in an outpatient setting either as abrupt stop/start or cross-titration, without parenteral treprostinil bridging. CONCLUSION Transition from selexipag to oral treprostinil was safe, performed without parenteral prostacyclin bridging, and resulted in clinical and categorical risk improvements in some patients.
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Affiliation(s)
- D Lachant
- University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA.
| | - R Minkin
- New York-Presbyterian Brooklyn Methodist Hospital, 506 6th St, Brooklyn, NY, 11215, USA.
| | - J Swisher
- Fort Sanders Regional Medical Center, 1901 Clinch Ave, Knoxville, TN, 37916, USA.
| | - M Mogri
- Baylor Scott & White Health, 301 North Washington Avenue Dallas, TX, 75246, USA.
| | - R Zolty
- University of Nebraska Medical Center, 42nd and Emile St, Omaha, NE, 68198, USA.
| | - S Hwang
- United Therapeutics Corporation, 55 TW Alexander Dr, Durham, NC, 27709, USA.
| | - S Seaman
- United Therapeutics Corporation, 55 TW Alexander Dr, Durham, NC, 27709, USA.
| | - M Broderick
- United Therapeutics Corporation, 55 TW Alexander Dr, Durham, NC, 27709, USA.
| | - S Sahay
- Houston Methodist Lung Center, 6445 Main St Floor 22, Houston, TX, 77030, USA.
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Hwang S, Park S, Yaseen U, Lee HJ, Cha JY. KLF10 Inhibits TGF-β-Mediated Activation of Hepatic Stellate Cells via Suppression of ATF3 Expression. Int J Mol Sci 2023; 24:12602. [PMID: 37628783 PMCID: PMC10454374 DOI: 10.3390/ijms241612602] [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: 06/29/2023] [Revised: 07/31/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
Liver fibrosis is a progressive and debilitating condition characterized by the excessive deposition of extracellular matrix proteins. Stellate cell activation, a major contributor to fibrogenesis, is influenced by Transforming growth factor (TGF-β)/SMAD signaling. Although Krüppel-like-factor (KLF) 10 is an early TGF-β-inducible gene, its specific role in hepatic stellate cell activation remains unclear. Our previous study demonstrated that KLF10 knockout mice develop severe liver fibrosis when fed a high-sucrose diet. Based on these findings, we aimed to identify potential target molecules involved in liver fibrosis and investigate the mechanisms underlying the KLF10 modulation of hepatic stellate cell activation. By RNA sequencing analysis of liver tissues from KLF10 knockout mice with severe liver fibrosis induced by a high-sucrose diet, we identified ATF3 as a potential target gene regulated by KLF10. In LX-2 cells, an immortalized human hepatic stellate cell line, KLF10 expression was induced early after TGF-β treatment, whereas ATF3 expression showed delayed induction. KLF10 knockdown in LX-2 cells enhanced TGF-β-mediated activation, as evidenced by elevated fibrogenic protein levels. Further mechanistic studies revealed that KLF10 knockdown promoted TGF-β signaling and upregulated ATF3 expression. Conversely, KLF10 overexpression suppressed TGF-β-mediated activation and downregulated ATF3 expression. Furthermore, treatment with the chemical chaperone 4-PBA attenuated siKLF10-mediated upregulation of ATF3 and fibrogenic responses in TGF-β-treated LX-2 cells. Collectively, our findings suggest that KLF10 acts as a negative regulator of the TGF-β signaling pathway, exerting suppressive effects on hepatic stellate cell activation and fibrogenesis through modulation of ATF3 expression. These results highlight the potential therapeutic implications of targeting the KLF10-ATF3 axis in liver fibrosis treatment.
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Affiliation(s)
- Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea; (S.H.); (H.-J.L.)
| | - Sangbin Park
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (S.P.); (U.Y.)
| | - Uzma Yaseen
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (S.P.); (U.Y.)
| | - Ho-Jae Lee
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea; (S.H.); (H.-J.L.)
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (S.P.); (U.Y.)
| | - Ji-Young Cha
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea; (S.H.); (H.-J.L.)
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea; (S.P.); (U.Y.)
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Lee SY, Kim EO, Jang D, Hwang S, Rhee KJ, Yun M. Method to Determine the Optimal Aptamer-to-Bead Ratio by Using Flow Cytometry. Scientifica (Cairo) 2023; 2023:5842652. [PMID: 37469438 PMCID: PMC10353897 DOI: 10.1155/2023/5842652] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/22/2023] [Accepted: 06/27/2023] [Indexed: 07/21/2023]
Abstract
Research on the effective attachment of aptamers to beads, which is essential for using aptamers, has made relatively little progress. Here, we demonstrate a new method based on flow cytometry to determine the optimal aptamer-to-bead ratio for aptamer immobilization. The fluorescence intensity increased with a gradual two-fold increase in the aptamer fluorescence concentration, peaked at an aptamer-to-bead ratio of 2.56 × 105, and tended to decrease at higher ratios. A similar pattern was observed in an additional analysis using fluorescence microscopy. However, measurement of the free aptamer concentration after the aptamer-bead conjugation reaction revealed a large aptamer loss compared to the 1.28 × 105 aptamer-bead ratio. In addition, the binding efficiency of the aptamer/bead to the target was highest at the aptamer-to-bead ratio of 1.28 × 105. Taken together, our data suggest that the proposed method is the best and easiest for determining the optimal aptamer-to-bead ratio.
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Affiliation(s)
- Sun Young Lee
- Lab of Functional Aptamer, Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
- Resource Upcycling and Discovery Research Institute, Sejong University, Seoul, Republic of Korea
| | - Eun-Ok Kim
- Medical Science Research Center, Korea University College of Medicine, Seoul, Republic of Korea
| | - Daehyuk Jang
- Lab of Functional Aptamer, Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
- Resource Upcycling and Discovery Research Institute, Sejong University, Seoul, Republic of Korea
| | - Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Software & Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju, Gangwon-do, Republic of Korea
| | - Miyong Yun
- Lab of Functional Aptamer, Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
- Resource Upcycling and Discovery Research Institute, Sejong University, Seoul, Republic of Korea
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Jang J, Hwang S, Oh AR, Park S, Yaseen U, Kim JG, Park S, Jung Y, Cha JY. Correction to: Fructose malabsorption in ChREBP-deficient mice disrupts the small intestine immune microenvironment and leads to diarrhea-dominant bowel habit changes. Inflamm Res 2023:10.1007/s00011-023-01736-w. [PMID: 37204437 DOI: 10.1007/s00011-023-01736-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023] Open
Affiliation(s)
- Jinsun Jang
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
| | - Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Inchon, 21999, Korea
| | - Ah-Reum Oh
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, 22212, Korea
| | - Sohyeon Park
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
| | - Uzma Yaseen
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
| | - Jae Gon Kim
- Department of Microbiology, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Inchon, 21999, Korea
| | - Sangbin Park
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
| | - YunJae Jung
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea.
- Department of Microbiology, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Inchon, 21999, Korea.
| | - Ji-Young Cha
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea.
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Inchon, 21999, Korea.
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Tan HS, Plichta JK, Kong A, Tan CW, Hwang S, Sultana R, Wright MC, Sia ATH, Sng BL, Habib AS. Risk factors for persistent pain after breast cancer surgery: a multicentre prospective cohort study. Anaesthesia 2023; 78:432-441. [PMID: 36639918 DOI: 10.1111/anae.15958] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2022] [Indexed: 01/15/2023]
Abstract
Identifying factors associated with persistent pain after breast cancer surgery may facilitate risk stratification and individualised management. Single-population studies have limited generalisability as socio-economic and genetic factors contribute to persistent pain development. Therefore, this prospective multicentre cohort study aimed to develop a predictive model from a sample of Asian and American women. We enrolled women undergoing elective breast cancer surgery at KK Women's and Children's Hospital and Duke University Medical Center. Pre-operative patient and clinical characteristics and EQ-5D-3L health status were recorded. Pain catastrophising scale; central sensitisation inventory; coping strategies questionnaire-revised; brief symptom inventory-18; perceived stress scale; mechanical temporal summation; and pressure-pain threshold assessments were performed. Persistent pain was defined as pain score ≥ 3 or pain affecting activities of daily living 4 months after surgery. Univariate associations were generated using generalised estimating equations. Enrolment site was forced into the multivariable model, and risk factors with p < 0.2 in univariate analyses were considered for backwards selection. Of 210 patients, 135 (64.3%) developed persistent pain. The multivariable model attained AUC = 0.807, with five independent associations: age (OR 0.85 95%CI 0.74-0.98 per 5 years); diabetes (OR 4.68, 95%CI 1.03-21.22); pre-operative pain score at sites other than the breast (OR 1.48, 95%CI 1.11-1.96); previous mastitis (OR 4.90, 95%CI 1.31-18.34); and perceived stress scale (OR 1.35, 95%CI 1.01-1.80 per 5 points), after adjusting for: enrolment site; pre-operative pain score at the breast; pre-operative overall pain score at rest; postoperative non-steroidal anti-inflammatory drug use; and pain catastrophising scale. Future research should validate this model and evaluate pre-emptive interventions to reduce persistent pain risk.
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Affiliation(s)
- H S Tan
- Department of Women's Anaesthesia, KK Women's and Children's Hospital, Duke-NUS Medical School, Singapore
| | - J K Plichta
- Division of Surgical Oncology, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - A Kong
- Department of Women's Anaesthesia, KK Women's and Children's Hospital, Duke-NUS Medical School, Singapore
| | - C W Tan
- Department of Women's Anaesthesia, KK Women's and Children's Hospital, Duke-NUS Medical School, Singapore
| | - S Hwang
- Division of Surgical Oncology, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - R Sultana
- Centre for Quantitative Medicine, Singapore
| | - M C Wright
- Division of Women's Anesthesia, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - A T H Sia
- KK Women's and Children's Hospital, Duke-NUS Medical School, Singapore
| | - B L Sng
- Department of Women's Anaesthesia, KK Women's and Children's Hospital, Duke-NUS Medical School, Singapore
| | - A S Habib
- Division of Women's Anesthesia, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
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11
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Koo SY, Hwang KT, Hwang S, Choi KY, Park YJ, Choi JH, Truong TQ, Kim SM. Nanoencapsulation enhances the bioavailability of fucoxanthin in microalga Phaeodactylum tricornutum extract. Food Chem 2023; 403:134348. [DOI: 10.1016/j.foodchem.2022.134348] [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: 06/14/2022] [Revised: 09/09/2022] [Accepted: 09/17/2022] [Indexed: 10/14/2022]
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12
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Jang J, Hwang S, Oh AR, Park S, Yaseen U, Kim JG, Park S, Jung Y, Cha JY. Fructose malabsorption in ChREBP-deficient mice disrupts the small intestine immune microenvironment and leads to diarrhea-dominant bowel habit changes. Inflamm Res 2023; 72:769-782. [PMID: 36813915 DOI: 10.1007/s00011-023-01707-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 02/01/2023] [Accepted: 02/09/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND The mechanism by which incompletely absorbed fructose causes gastrointestinal symptoms is not fully understood. In this study, we investigated the immunological mechanisms of bowel habit changes associated with fructose malabsorption by examining Chrebp-knockout mice exhibiting defective fructose absorption. METHODS Mice were fed a high-fructose diet (HFrD), and stool parameters were monitored. The gene expression in the small intestine was analyzed by RNA sequencing. Intestinal immune responses were assessed. The microbiota composition was determined by 16S rRNA profiling. Antibiotics were used to assess the relevance of microbes for HFrD-induced bowel habit changes. RESULTS Chrebp-knockout (KO) mice fed HFrD showed diarrhea. Small-intestine samples from HFrD-fed Chrebp-KO mice revealed differentially expressed genes involved in the immune pathways, including IgA production. The number of IgA-producing cells in the small intestine decreased in HFrD-fed Chrebp-KO mice. These mice showed signs of increased intestinal permeability. Chrebp-KO mice fed a control diet showed intestinal bacterial imbalance, which the HFrD exaggerated. Bacterial reduction improved diarrhea-associated stool parameters and restored the decreased IgA synthesis induced in HFrD-fed Chrebp-KO mice. CONCLUSIONS The collective data indicate that gut microbiome imbalance and disrupting homeostatic intestinal immune responses account for the development of gastrointestinal symptoms induced by fructose malabsorption.
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Affiliation(s)
- Jinsun Jang
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
| | - Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Inchon, 21999, Korea
| | - Ah-Reum Oh
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea.,Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, 22212, Korea
| | - Sohyeon Park
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
| | - Uzma Yaseen
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
| | - Jae Gon Kim
- Department of Microbiology, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Inchon, 21999, Korea
| | - Sangbin Park
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea
| | - YunJae Jung
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea. .,Department of Microbiology, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Inchon, 21999, Korea.
| | - Ji-Young Cha
- Department of Health Science and Technology, Gachon Advanced Institute for Health Science and Technology, Gachon University, Inchon, Korea. .,Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, 155 Gaetbeol-ro, Yeonsu-gu, Inchon, 21999, Korea. .,Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, 22212, Korea.
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Lee J, Lee S, Lee J, Hwang S, Jee B, Kim J, Chung J, Song W, Sung H, Jeon H, Jeong B, Seo S, Jeon S, Lee H, Park S, Kwon G, Kang M. Prognostic value of fat loss in patients with metastatic clear cell renal cell carcinoma treated with immune checkpoint inhibition. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00385-8] [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: 02/12/2023]
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14
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Hong JE, Lee CG, Hwang S, Kim J, Jo M, Kang DH, Yoo SH, Kim WS, Lee Y, Rhee KJ. Pulsed Electromagnetic Field (PEMF) Treatment Ameliorates Murine Model of Collagen-Induced Arthritis. Int J Mol Sci 2023; 24:ijms24021137. [PMID: 36674651 PMCID: PMC9862561 DOI: 10.3390/ijms24021137] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/24/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease of the joint synovial membranes. RA is difficult to prevent or treat; however, blocking proinflammatory cytokines is a general therapeutic strategy. Pulsed electromagnetic field (PEMF) is reported to alleviate RA's inflammatory response and is being studied as a non-invasive physical therapy. In this current study, PEMF decreased paw inflammation in a collagen-induced arthritis (CIA) murine model. PEMF treatment at 10 Hz was more effective in ameliorating arthritis than at 75 Hz. In the PEMF-treated CIA group, the gross inflammation score and cartilage destruction were lower than in the untreated CIA group. The CIA group treated with PEMF also showed lower serum levels of IL-1β but not IL-6, IL-17, or TNF-α. Serum levels of total anti-type II collagen IgG and IgG subclasses (IgG1, IgG2a, and IgG2b) remained unchanged. In contrast, tissue protein levels of IL-1β, IL-6, TNF-α, receptor activator of nuclear factor kappa-Β (RANK), RANK ligand (RANKL), IL-6 receptor (IL-6R), and TNF-α receptor1 (TNFR1) were all lower in the ankle joints of the PEMF-treated CIA group compared with the CIA group. The results of this study suggest that PEMF treatment can preserve joint morphology cartilage and delay the occurrence of CIA. PEMF has potential as an effective adjuvant therapy that can suppress the progression of RA.
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Affiliation(s)
- Ju-Eun Hong
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
| | - Chang-Gun Lee
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University College of Medicine, Incheon 21999, Republic of Korea
| | - Junyoung Kim
- Department of Biomedical Engineering, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - Da-Hye Kang
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
| | - Sang-Hyeon Yoo
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
| | - Woo-Seung Kim
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
| | - Yongheum Lee
- Department of Biomedical Engineering, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Republic of Korea
- Correspondence: ; Tel.: +82-33-760-2445; Fax: +82-33-760-2195
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15
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Schneider D, Hwang S, Haase J, Miersemann E, Kärger J. Quantitating Diffusion Enhancement in Pore Hierarchies. Langmuir 2022; 38:11565-11572. [PMID: 36107750 DOI: 10.1021/acs.langmuir.2c01157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A microporous continuum traversed by a set of mutually perpendicular channels is considered to be a model for a hierarchically porous system of the mesoporous zeolite type. Transient profiles of molecular uptake as determined by kinetic Monte Carlo (kMC) simulation are found to be in excellent agreement with the result attained by the application of the two-region model (the Kärger model) of molecular diffusion. In particular, it is found that, in the two limiting cases referred to as fast exchange and slow exchange, there exist two simple analytical expressions for the rate of molecular uptake and hence for the quantification of transport enhancement in comparison with the purely microporous adsorbent. In the general case, transport enhancement is simply recognized by the reciprocal addition of the expressions in the two limiting cases.
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Affiliation(s)
- D Schneider
- Innovation Center Computer Assisted Surgery (ICCAS), Institute at the Medical Faculty, Leipzig University, Semmelweisstraße 14, 04103 Leipzig, Germany
| | - S Hwang
- Faculty of Physics and Earth Sciences, Leipzig University, Linnéstrasse 5, 04103 Leipzig, Germany
| | - J Haase
- Faculty of Physics and Earth Sciences, Leipzig University, Linnéstrasse 5, 04103 Leipzig, Germany
- Saxon Academy of Sciences and Humanities in Leipzig, Structural Commission "Propagation in Nature, Technology and Society" 04107 Leipzig, Karl-Tauchnitz-Straße 1, Germany
| | - E Miersemann
- Saxon Academy of Sciences and Humanities in Leipzig, Structural Commission "Propagation in Nature, Technology and Society" 04107 Leipzig, Karl-Tauchnitz-Straße 1, Germany
- Faculty of Mathematics and Informatics, Leipzig University, Augustusplatz 10, 04109 Leipzig, Germany
| | - J Kärger
- Faculty of Physics and Earth Sciences, Leipzig University, Linnéstrasse 5, 04103 Leipzig, Germany
- Saxon Academy of Sciences and Humanities in Leipzig, Structural Commission "Propagation in Nature, Technology and Society" 04107 Leipzig, Karl-Tauchnitz-Straße 1, Germany
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16
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Park S, Park H, Park C, Yun WS, Hwang S, Yoon HY, Kwon IC, Kim K, Key J. Improved survival rate and minimal side effects of doxorubicin for lung metastasis using engineered discoidal polymeric particles. Biomater Sci 2022; 10:4335-4344. [PMID: 35775589 DOI: 10.1039/d2bm00718e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Despite advances in cancer therapy, the discovery of effective cancer treatments remains challenging. In this study, a simple method was developed to increase the efficiency of doxorubicin (DOX) delivery in a lung metastasis model. This method comprises a simple configuration to increase the delivery efficiency via precise engineering of the size, shape, loading content, and biodegradability of the drug delivery system. This system had a 3 μm discoidal shape and exerted approximately 90% burst release of the drug within the first 24 h. There was no cytotoxicity of the drug carrier up to a concentration of 1 mg ml-1, and DOX from the carrier was delivered into the cancer cells, exhibiting an anticancer effect comparable to that of the free drug. The ex vivo results revealed a strong correlation between the location of cancer cells in the lung and the location of DOX delivered by this drug delivery system. These drug carriers were confirmed to intensively deliver DOX to cancer cells in the lung, with minimal off-target effects. These findings indicate that this delivery system can be a new approach to improving the survival rate and reducing the side effects caused by anticancer drugs without the use of targeting ligands and polyethylene glycol.
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Affiliation(s)
- Sanghyo Park
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea.
| | - Hyungkyu Park
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea.
| | - Chaewon Park
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea.
| | - Wan Su Yun
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea.,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Korea.,Department of Biomedical Laboratory Science, Yonsei University, Wonju 26493, Republic of Korea
| | - Hong Yeol Yoon
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea.,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Ick Chan Kwon
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea.,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Kwangmeyung Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea.,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Jaehong Key
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea.
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17
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Kwan Y, Lee J, Hwang S, Choi S. Social Hypersensitivity in Bipolar Disorder: An ERP Study. Eur Psychiatry 2022. [PMCID: PMC9563215 DOI: 10.1192/j.eurpsy.2022.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Bipolar Disorder (BD) is a disorder in which cognitive function is relatively preserved but social functioning is markedly impaired. Interestingly, studies on BD show that the patients have a strong desire for social rewards. Hypersensitivity to social rewards in BD has not yet been sufficiently examined through experimental methods, although recent studies have pointed out that their reward hypersensitivity is the cause of symptoms and dysfunction. Objectives The purpose of this study was to investigate whether patients with BD are hypersensitive to social rewards using the social value capture task. Methods Groups of 25 BD and healthy control (HC) each completed the social value attention capture task. This task consists of a practice phase in which associative learning of social rewards with specific stimuli occurs, and a test phase in which the stimuli associated with rewards appear as distractors during the participants performing a selective attention task. We also recorded event-related potential (ERP) in the practice phase in order to investigate BDs’ cortical activity for social reward. Results showed significantly decreased accuracy rate and increased reaction time in the high social reward-associated distractor trials of the test phase in the BD compared to the HC. As a result of analysis in ERP components, P3 amplitude for social reward was significantly greater in the BD than the HC. Conclusions BD patients exhibit behavioral and physiological hypersensitivity to social rewards that might contribute to social dysfunction. Disclosure No significant relationships.
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18
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Lee CG, Park C, Hwang S, Hong JE, Jo M, Eom M, Lee Y, Rhee KJ. Pulsed Electromagnetic Field (PEMF) Treatment Reduces Lipopolysaccharide-Induced Septic Shock in Mice. Int J Mol Sci 2022; 23:ijms23105661. [PMID: 35628471 PMCID: PMC9147061 DOI: 10.3390/ijms23105661] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/14/2022] [Accepted: 05/17/2022] [Indexed: 12/04/2022] Open
Abstract
Despite advances in medicine, mortality due to sepsis has not decreased. Pulsed electromagnetic field (PEMF) therapy is emerging as an alternative treatment in many inflammation-related diseases. However, there are few studies on the application of PEMF therapy to sepsis. In the current study, we examined the effect of PEMF therapy on a mouse model of lipopolysaccharide (LPS)-induced septic shock. Mice injected with LPS and treated with PEMF showed higher survival rates compared with the LPS group. The increased survival was correlated with decreased levels of pro-inflammatory cytokine mRNA expression and lower serum nitric oxide levels and nitric oxide synthase 2 mRNA expression in the liver compared with the LPS group. In the PEMF + LPS group, there was less organ damage in the liver, lungs, spleen, and kidneys compared to the LPS group. To identify potential gene targets of PEMF treatment, microarray analysis was performed, and the results showed that 136 genes were up-regulated, and 267 genes were down-regulated in the PEMF + LPS group compared to the LPS group. These results suggest that PEMF treatment can dramatically decrease septic shock through the reduction of pro-inflammatory cytokine gene expression. In a clinical setting, PEMF may provide a beneficial effect for patients with bacteria-induced sepsis and reduce septic shock-induced mortality.
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Affiliation(s)
- Chang-Gun Lee
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Korea; (C.-G.L.); (C.P.); (S.H.); (J.-E.H.); (M.J.)
- Department of Medical Genetics, School of Medicine, Ajou University, Suwon 16499, Korea
| | - Chanoh Park
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Korea; (C.-G.L.); (C.P.); (S.H.); (J.-E.H.); (M.J.)
| | - Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Korea; (C.-G.L.); (C.P.); (S.H.); (J.-E.H.); (M.J.)
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, GAIST, College of Medicine, Gachon University, Incheon 21999, Korea
| | - Ju-Eun Hong
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Korea; (C.-G.L.); (C.P.); (S.H.); (J.-E.H.); (M.J.)
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Korea; (C.-G.L.); (C.P.); (S.H.); (J.-E.H.); (M.J.)
| | - Minseob Eom
- Department of Pathology, Wonju College of Medicine, Yonsei University, Wonju 26426, Korea;
| | - Yongheum Lee
- Department of Biomedical Engineering, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Korea
- Correspondence: (Y.L.); (K.-J.R.); Tel.: +82-33-760-2863 (Y.L.); +82-33-760-2445 (K.-J.R.); Fax: +82-33-760-2561 (Y.L.); +82-33-760-2195 (K.-J.R.)
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Software and Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju 26493, Korea; (C.-G.L.); (C.P.); (S.H.); (J.-E.H.); (M.J.)
- Correspondence: (Y.L.); (K.-J.R.); Tel.: +82-33-760-2863 (Y.L.); +82-33-760-2445 (K.-J.R.); Fax: +82-33-760-2561 (Y.L.); +82-33-760-2195 (K.-J.R.)
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Lee T, Chung H, Chung J, Hur M, Hwang S, Song Y, Lee D. M168 Automation of harboe method for the measurement of plasma free hemoglobin. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Khan Y, Hwang S, Braveenth R, Jung YH, Walker B, Kwon JH. Synthesis of fluorescent organic nano-dots and their application as efficient color conversion layers. Nat Commun 2022; 13:1801. [PMID: 35379797 PMCID: PMC8980075 DOI: 10.1038/s41467-022-29403-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 03/07/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractEfficient conversion of light from short wavelengths to longer wavelengths using color conversion layers (CCLs) underpins the successful operation of numerous contemporary display and lighting technologies. Inorganic quantum dots, based on CdSe or InP, for example, have received much attention in this context, however, suffer from instability and toxic cadmium or phosphine chemistry. Organic nanoparticles (NPs), though less often studied, are capable of very competitive performance, including outstanding stability and water-processability. Surfactants, which are critical in stabilizing many types of nano-structures, have not yet been used extensively in organic NPs. Here we show the utility of surfactants in the synthesis and processing of organic NPs by thoroughly characterizing the effect of ionic and non-ionic surfactants on the properties of fluorescent organic NPs. Using this information, we identify surfactant processing conditions that result in nearly 100 % conversion of organic fluorophores into sub-micrometer particles, or nano-dots, with outstanding performance as CCLs. Such water dispersions are environmentally benign and efficiently convert light. They can be used for a range of fluorophores covering a full spectral gamut, with excellent color purity, including full-width at half-maximum (FWHM) values as low as 21 nm. Compared to inorganic (InP) reference CCLs, the organic nano-dot based CCLs show superior color conversion efficiency and substantially improved long-term stability.
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Moreira R, Richetti R, Vidotti S, Hwang S, Mendonça A, Machado A, Mendonça R, Toledo L. Capio TM Slim Suture Device x Tissue Anchoring System has different results in treatment of advanced pelvic organ prolapse? Prospective and Randomized study: Partial Results with 12 months follow-up. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01060-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Chung JS, Hwang S, Hong JE, Jo M, Rhee KJ, Kim S, Jung PY, Yoon Y, Kang SH, Ryu H, Kim MY, Bae KS, Eom YW. Skeletal muscle satellite cell-derived mesenchymal stem cells ameliorate acute alcohol-induced liver injury. Int J Med Sci 2022; 19:353-363. [PMID: 35165521 PMCID: PMC8795809 DOI: 10.7150/ijms.68971] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/05/2022] [Indexed: 12/03/2022] Open
Abstract
Cultured human skeletal-muscle satellite cells have properties of mesenchymal stem cells (skeletal muscle satellite cell-derived mesenchymal stem cells, SkMSCs) and play anti-inflammatory roles by secreting prostaglandin E2 and hepatocyte growth factor (HGF). To evaluate the utility of SkMSCs in treating liver diseases, we determined whether SkMSCs could ameliorate acute liver and gut inflammation induced by binge ethanol administration. Binge drinking of ethanol led to weight loss in the body and spleen, liver inflammation and steatosis, and increased serum ALT and AST levels (markers of liver injury), along with increased IL-1β, TNF-α, and iNOS expression levels in mice. However, levels of these binge-drinking-induced indicators were reduced by a single intraperitoneal treatment of SkMSCs. Furthermore, levels of bacteria-derived lipopolysaccharide decreased in the livers and sera of ethanol-exposed mice after SkMSC administration. SkMSCs decreased the extent of tissue inflammation and reduced villus and crypt lengths in the small intestine after alcohol binge drinking. SkMSCs also reduced the leakage of blood albumin, an indicator of leaky gut, in the stool of ethanol-exposed mice. Alcohol-induced damage to human colonic Caco-2/tc7 cells was also alleviated by HGF. Therefore, a single treatment with SkMSCs can attenuate alcoholic liver damage by reducing inflammatory responses in the liver and gut, suggesting that SkMSCs could be used in cell therapy to treat alcoholic liver diseases.
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Affiliation(s)
- Jae Sik Chung
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Soonjae Hwang
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University College of Medicine, Incheon 21999, Republic of Korea
| | - Ju Eun Hong
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Seongyup Kim
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Pil Young Jung
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Youngdae Yoon
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Seong Hee Kang
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Hoon Ryu
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Moon Young Kim
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Keum Seok Bae
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Young Woo Eom
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
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23
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Seo D, Hwang S, Kim B, Yang Y, Yoon S, Cho BK. Tunable asymmetric spin wave excitation and propagation in a magnetic system with two rectangular blocks. Sci Rep 2021; 11:24385. [PMID: 34934064 PMCID: PMC8692326 DOI: 10.1038/s41598-021-02967-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/24/2021] [Indexed: 11/09/2022] Open
Abstract
Asymmetric spin wave excitation and propagation are key properties to develop spin-based electronics, such as magnetic memory, spin information and logic devices. To date, such nonreciprocal effects cannot be manipulated in a system because of the geometrical magnetic configuration, while large values of asymmetry ratio are achieved. In this study, we suggest a new magnetic system with two blocks, in which the asymmetric intensity ratio can be changed between 0.276 and 1.43 by adjusting the excitation frequency between 7.8 GHz and 9.4 GHz. Because the two blocks have different widths, they have their own spin wave excitation frequency ranges. Indeed, the spin wave intensities in the two blocks, detected by the Brillouin light scattering spectrum, were observed to be frequency-dependent, yielding tuneable asymmetry ratio. Thus, this study provides a new path to enhance the application of spin waves in spin-based electronics.
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Affiliation(s)
- Dongpyo Seo
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - S Hwang
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Byungro Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Yeonhee Yang
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Seungha Yoon
- Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology (KITECH), Gwangju, 61012, Republic of Korea
| | - B K Cho
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
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24
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Klemen N, Hwang S, Bradic M, Rosenbaum E, Dickson M, Gounder M, Kelly C, Keohan M, Movva S, Thornton K, Chi P, Nacev B, Chan J, Bartlett E, Richards A, Singer S, Donoghue M, Tap W, D'Angelo S. 1527MO Biomarkers of response and hyperprogression in patients with sarcoma treated with checkpoint blockade. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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25
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Kim S, Jung PY, Lee JS, Hwang S, Sohn JH, Yoon Y, Bae KS, Eom YW. Cultured human skeletal muscle satellite cells exhibit characteristics of mesenchymal stem cells and play anti-inflammatory roles through prostaglandin E2 and hepatocyte growth factors. Cell Biol Int 2021; 45:2443-2451. [PMID: 34374483 DOI: 10.1002/cbin.11688] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/06/2021] [Accepted: 08/07/2021] [Indexed: 12/19/2022]
Abstract
Skeletal muscle satellite cells (SkMSCs) play crucial roles in muscle fiber maintenance, repair, and remodeling; however, it remains unknown if these properties are preserved in cultured SkMSCs. In this study, we investigated the characteristics of cultured SkMSCs and their ability to regulate the activity of M1 macrophages. SkMSCs grew well with an average population doubling time of 26.26 ± 6.85 h during 10 passages (P). At P5, Pax7, MyoD, cluster of differentiation (CD)34, and CD56 were not expressed in SkMSCs, but the MSC markers CD73, CD105, and CD90 were expressed and the cells were differentiated into adipocytes and osteoblasts. When SkMSCs were cocultured with macrophages, interleukin (IL)-1β secretion was decreased, prostaglandin (PG)E2 was produced in coculture, and cyclooxygenase-2 protein was induced in an SkMSC-dependent manner. Hepatocyte growth factor (HGF) was highly secreted by monocultured SkMSCs; interferon-γ and lipopolysaccharide reduced its expression level. However, HGF expression recovered when SkMSCs and macrophages were cocultured. Although exogenous PGE2 upregulated macrophage pro-IL-1β expression, it suppressed the secretion of cleaved IL-1β. In contrast, HGF decreased active IL-1β secretion without affecting pro-IL-1β expression. Co-treatment of macrophages with HGF and PGE2 reduced pro-IL-1β expression level and active IL-1β secretion. Our results suggest that SkMSCs lose their satellite cell properties during serial passaging but acquire mesenchymal stem cell properties including the ability to exert an anti-inflammatory response for macrophages through PGE2 and HGF.
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Affiliation(s)
- Seongyup Kim
- Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Pil Young Jung
- Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Jin Suk Lee
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Soonjae Hwang
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Joon Hyung Sohn
- Central Research Laboratory, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Yongdae Yoon
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Keum Seok Bae
- Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Young Woo Eom
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea.,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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26
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Un Choi Y, Yoon Y, Jung PY, Hwang S, Hong JE, Kim WS, Sohn JH, Rhee KJ, Bae KS, Eom YW. TRAIL-overexpressing Adipose Tissue-derived Mesenchymal Stem Cells Efficiently Inhibit Tumor Growth in an H460 Xenograft Model. Cancer Genomics Proteomics 2021; 18:569-578. [PMID: 34183389 DOI: 10.21873/cgp.20281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND/AIM Mesenchymal stem cell-based tumor therapy is still limited due to the insufficient secretion of effectors and discrepancies between their in vitro and in vivo efficacy. We investigated whether genetically engineered adipose tissue-derived mesenchymal stem cells (ASCs) overexpressing tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) had inhibitory effects on H460 tumor growth both in vitro and in an H460 xenograft model. MATERIALS AND METHODS Genetically engineered adipose tissue-derived mesenchymal stem cells (ASCs) overexpressing tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) were obtained from plasmid transfection with pCMV3-TRAIL and -interferon (IFN)-β (producing ASC-TRAIL and ASC-IFN-β, respectively). Death of H460 cells co-cultured with ASCs, ASC-TRAIL, and ASC-IFN-β or exposed to their conditioned medium was evaluated via apoptosis and cytotoxicity assays. In addition, in an H460 xenograft model (n=10 per group), the antitumor potential of TRAIL-overexpressing, and IFN-β-overexpressing ASCs was investigated. RESULTS Conditioned medium obtained from ASC-IFN-β increased apoptosis of H460 cells more than did ASC-TRAIL. Additionally, in H460 xenograft models, while native ASCs promoted tumor growth, ASC-TRAIL and ASC-IFN-β both dramatically suppressed tumor growth. Interestingly, in the context of ASC-IFN-β, tumors were detected only in 20% of nude mice, with smaller sizes and lower weights than those of the control group. CONCLUSION TRAIL-overexpressing ASCs can be used to treat tumors; ASC-IFN-β in particular secrete a higher level of TRAIL.
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Affiliation(s)
- Young Un Choi
- Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Yongdae Yoon
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Pil Young Jung
- Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Soonjae Hwang
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Ju Eun Hong
- Department of Biomedical Laboratory Science, Yonsei University Mirae Campus College of Health Sciences, Wonju, Republic of Korea
| | - Woo-Seung Kim
- Department of Biomedical Laboratory Science, Yonsei University Mirae Campus College of Health Sciences, Wonju, Republic of Korea
| | - Joon Hyung Sohn
- Central Research Laboratory, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, Yonsei University Mirae Campus College of Health Sciences, Wonju, Republic of Korea
| | - Keum Seok Bae
- Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea;
| | - Young Woo Eom
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea; .,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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27
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Shin J, Baik SK, Yoon Y, Hwang S, Sohn JH, Jo M, Kim WS, Rhee KJ, Whang K, Eom YW. DNA-binding Cell-penetrating Peptide-based TRAIL Over-expression in Adipose Tissue-derived Mesenchymal Stem Cells Inhibits Glioma U251MG Growth. Anticancer Res 2021; 41:2859-2866. [PMID: 34083276 DOI: 10.21873/anticanres.15067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Genetic manipulation of stem cells using non-viral vectors is still limited due to low transfection efficiency. We investigated whether the DNA-binding cell-permeation peptides (CPP) can enhance the transfection efficiency of non-viral vectors in adipose tissue-derived mesenchymal stem cells (ASCs) and whether ASCs over-expressing TRAIL through CPP can inhibit the growth of glioma U251MG cells in vitro and in vivo. MATERIALS AND METHODS ASCs were genetically engineered to over-express TRAIL by using CPP, pCMV3-TRAIL and lipid-based transfection reagents (X-tremeGENE). RESULTS The transfection efficiency of ASCs increased by approximately 7% using CPP; 53.9% of ASCs were transfected and TRAIL expression in ASCs increased by approximately 3 times compared to X-tremeGENE alone. ASCs over-expressing TRAIL using CPP inhibited growth of glioma U251MG cells both in vitro and in the U251MG xenograft model. CONCLUSION CPP can be used as an enhancer for genetically manipulating ASCs and tumor treatment.
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Affiliation(s)
- Jaesik Shin
- Department of Neurosurgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Soon Koo Baik
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea.,Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Yongdae Yoon
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Soonjae Hwang
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Joon Hyung Sohn
- Central Research Laboratory, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University Mirae Campus, Wonju, Republic of Korea
| | - Woo-Seung Kim
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University Mirae Campus, Wonju, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University Mirae Campus, Wonju, Republic of Korea
| | - Kum Whang
- Department of Neurosurgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea;
| | - Young Woo Eom
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea; .,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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28
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Jin BR, Chung KS, Hwang S, Hwang SN, Rhee KJ, Lee M, An HJ. Rosmarinic acid represses colitis-associated colon cancer: A pivotal involvement of the TLR4-mediated NF-κB-STAT3 axis. Neoplasia 2021; 23:561-573. [PMID: 34077834 PMCID: PMC8180929 DOI: 10.1016/j.neo.2021.05.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [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: 02/01/2021] [Revised: 03/17/2021] [Accepted: 05/03/2021] [Indexed: 01/07/2023]
Abstract
Previously, we found that rosmarinic acid (RA) exerted anti-inflammatory activities in a dextran sulfate sodium (DSS)-induced colitis model. Here, we investigated the anti-tumor effects of RA on colitis-associated colon cancer (CAC) and the underlying molecular mechanisms. We established an azoxymethane (AOM)/DSS-induced CAC murine model for in vivo studies and used a conditioned media (CM) culture system in vitro. H&E staining, immunohistochemistry, western blot assay, enzyme-linked immunosorbent assay, molecular docking, co-immunoprecipitation, and immunofluorescence assay were utilized to investigate how RA prevented colorectal cancer. In the AOM/DSS-induced CAC murine model, RA significantly reduced colitis severity, inflammation-related protein expression, tumor incidence, and colorectal adenoma development. It significantly modulated toll-like receptor-4 (TLR4)-mediated nuclear factor-kappa B (NF-κB) and signal transducer and activator of transcription 3 (STAT3) activation, thus attenuating the expression of anti-apoptotic factors, which mediate transcription factor-dependent tumor growth. In vitro, RA inhibited CM-induced TLR4 overexpression and competitively inhibited TLR4-myeloid differentiation factor 2 complex in an inflammatory microenvironment. Thus, RA suppressed NF-κB and STAT3 activation in colon cancer cells in an inflammatory microenvironment. Therefore, RA suppressed colitis-associated tumorigenesis in the AOM/DSS-induced CAC murine model and abrogated human colon cancer progression in an inflammatory microenvironment by propitiating TLR4-mediated NF-κB and STAT3 activation, pleiotropically.
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Affiliation(s)
- Bo-Ram Jin
- Department of Pharmacology, College of Korean Medicine, Sangji University, Wonju-si, Gangwon-do, Korea
| | - Kyung-Sook Chung
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju-si, Gangwon-do, Republic of Korea
| | - Sam Noh Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju-si, Gangwon-do, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju-si, Gangwon-do, Republic of Korea
| | - Minho Lee
- Department of Life Science, Dongguk University-Seoul, Goyang-si, Gyeonggi-do, Republic of Korea.
| | - Hyo-Jin An
- Department of Pharmacology, College of Korean Medicine, Sangji University, Wonju-si, Gangwon-do, Korea.
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29
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Karthik D, Jung YH, Lee H, Hwang S, Seo BM, Kim JY, Han CW, Kwon JH. Acceptor-Donor-Acceptor-Type Orange-Red Thermally Activated Delayed Fluorescence Materials Realizing External Quantum Efficiency Over 30% with Low Efficiency Roll-Off. Adv Mater 2021; 33:e2007724. [PMID: 33792077 DOI: 10.1002/adma.202007724] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/05/2021] [Indexed: 06/12/2023]
Abstract
Two new orange-red thermally activated delayed fluorescence (TADF) materials, PzTDBA and PzDBA, are reported. These materials are designed based on the acceptor-donor-acceptor (A-D-A) configuration, containing rigid boron acceptors and dihydrophenazine donor moieties. These materials exhibit a small ΔEST of 0.05-0.06 eV, photoluminescence quantum yield (PLQY) as high as near unity, and short delayed exciton lifetime (τd ) of less than 2.63 µs in 5 wt% doped film. Further, these materials show a high reverse intersystem crossing rate (krisc ) on the order of 106 s-1 . The TADF devices fabricated with 5 wt% PzTDBA and PzDBA as emitting dopants show maximum EQE of 30.3% and 21.8% with extremely low roll-off of 3.6% and 3.2% at 1000 cd m-2 and electroluminescence (EL) maxima at 576 nm and 595 nm, respectively. The low roll-off character of these materials is analyzed by using a roll-off model and the exciton annihilation quenching rates are found to be suppressed by the fast krisc and short delayed exciton lifetime. These devices show operating device lifetimes (LT50 ) of 159 and 193 h at 1000 cd m-2 for PzTDBA and PzDBA, respectively. The high efficiency and low roll-off of these materials are attributed to the good electronic properties originatng from the A-D-A molecular configuration.
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Affiliation(s)
- Durai Karthik
- Organic Optoelectronic Device Lab. (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Young Hun Jung
- Organic Optoelectronic Device Lab. (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Hyuna Lee
- Organic Optoelectronic Device Lab. (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Soonjae Hwang
- Organic Optoelectronic Device Lab. (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Bo-Min Seo
- LG Display R & D center, LG Science park, 30, Magokjungang 10-ro, Gangseo-gu, Seoul, 07796, Republic of Korea
| | - Jun-Yun Kim
- LG Display R & D center, LG Science park, 30, Magokjungang 10-ro, Gangseo-gu, Seoul, 07796, Republic of Korea
| | - Chang Wook Han
- LG Display R & D center, LG Science park, 30, Magokjungang 10-ro, Gangseo-gu, Seoul, 07796, Republic of Korea
| | - Jang Hyuk Kwon
- Organic Optoelectronic Device Lab. (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
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30
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Yamada D, Vu S, Wu X, Shi Z, Huynh M, Zheng J, Hwang S. 153 A specific mutation in TRPM4 predisposes mice to psoriasiform dermatitis (PsD). J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Jung YH, Karthik D, Lee H, Maeng JH, Yang KJ, Hwang S, Kwon JH. A New BODIPY Material for Pure Color and Long Lifetime Red Hyperfluorescence Organic Light-Emitting Diode. ACS Appl Mater Interfaces 2021; 13:17882-17891. [PMID: 33826283 DOI: 10.1021/acsami.1c03175] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A red fluorescent material, 1,3,7,9-tetrakis(4-(tert-butyl)phenyl)-5,5-difluoro-10-(2-methoxyphenyl)-5H-4l4,5l4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinine (4tBuMB), as an emitting dopant in a thermally activated delayed fluorescence (TADF) sensitized hyperfluorescence organic light-emitting diode (HFOLED) is reported. The 4tBuMB shows a high photoluminescence quantum yield (PLQY) of 99% with an emission maximum at 620 nm and a full width at half-maximum (fwhm) of 31 nm in solution. Further, it shows a deep lowest unoccupied molecular orbital (LUMO) of 3.83 eV. Thus, two TADF materials, 4CzIPN and 4CzTPN, as sensitizing hosts, are selected on the basis of a suitable LUMO level and spectrum overlap with 4tBuMB. The fabricated HFOLED device with 4CzTPN as a sensitizing host and 4tBuMB as an emitting dopant shows a maximum external quantum efficiency (EQE), an emission maximum, an fwhm, and CIE coordinates of 19.4%, 617 nm, 44 nm, and (0.64, 0.36), respectively. The electroluminance performances of the 4CzTPN sensitized device are higher than those of the 4CzIPN-based device, which is attributed to a higher Förster resonance energy transfer (FRET) rate and reduced intersystem crossing/reverse intersystem crossing (ISC/RISC) cycles of the former. Also, the 4CzTPN-based HF device shows a longer device lifetime (LT90) of 954 h than the 4CzIPN-baed device (LT90 of 57 h) at 3000 cd m-2. The higher device stability is due to the higher bond dissociation energies (BDEs) of 4CzTPN and 4tBuMB than that of 4CzIPN.
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Affiliation(s)
- Young Hun Jung
- Organic Optoelectronic Device Laboratory, Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Durai Karthik
- Organic Optoelectronic Device Laboratory, Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Hyuna Lee
- Organic Optoelectronic Device Laboratory, Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Jee Hyun Maeng
- Organic Optoelectronic Device Laboratory, Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Ki Joon Yang
- Organic Optoelectronic Device Laboratory, Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Soonjae Hwang
- Organic Optoelectronic Device Laboratory, Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Jang Hyuk Kwon
- Organic Optoelectronic Device Laboratory, Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
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Cho HD, Kim KH, Yoon YI, Kang WH, Jung DH, Park GC, Hwang S, Ahn CS, Moon DB, Ha TY, Song GW, Park JI, Lee SG. Comparing purely laparoscopic versus open living donor right hepatectomy: propensity score-matched analysis. Br J Surg 2021; 108:e233-e234. [PMID: 33821995 DOI: 10.1093/bjs/znab090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/20/2021] [Accepted: 02/16/2021] [Indexed: 12/14/2022]
Affiliation(s)
- H-D Cho
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - K-H Kim
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - Y-I Yoon
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - W-H Kang
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - D-H Jung
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - G-C Park
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - S Hwang
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - C-S Ahn
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - D-B Moon
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - T-Y Ha
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - G-W Song
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
| | - J-I Park
- Department of Surgery, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - S-G Lee
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Ulsan University and Asan Medical Centre, Seoul, Korea
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Chang JG, Yoon YI, Lee SG, Hwang S, Kim KH, Ahn CS, Moon DB, Ha TY, Song GW, Jung DH, Park GC, Park JI. Single-Center Experience of Living Donor Liver Transplantation for Patients With Secondary Biliary Cirrhosis. Transplant Proc 2020; 53:98-103. [PMID: 33339650 DOI: 10.1016/j.transproceed.2020.10.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 10/09/2020] [Accepted: 10/30/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Secondary biliary cirrhosis (SBC) represents a unique form of cirrhosis that develops in the liver secondary to persistent biliary obstruction. This study aimed to review the living donor liver transplants (LDLTs) performed at our center for patients with SBC and end-stage liver disease and to share the perioperative strategies undertaken to achieve satisfactory outcomes. METHODS The medical records of 29 patients who underwent LDLT for SBC between December 1994 and July 2018 at the Asan Medical Center (Seoul, South Korea) were retrospectively reviewed. Their clinical data were extracted and statistically analyzed. Survival curves were computed. RESULTS The perioperative and in-hospital morbidity rates were 72.4% and 10.3%, respectively. The overall mean recipient follow-up was 80.0 (SD, 66.4) months (range, 0.8-246.8 months). Patient survival rates after 1, 3, 5, and 10 years after transplant were 82.8%, 79.3%, 79.3%, and 79.3%, respectively. For liver grafts, the survival rates were 82.8%, 75.8%, 75.8%, and 75.8% at 1, 3, 5, and 10 years, respectively. CONCLUSIONS LDLT is potentially a final lifesaving resort for patients with SBC with portal hypertension. However, considering the difficulty of surgery and perioperative management, LDLT should be performed by experienced transplant surgeons in a center where a multidisciplinary approach is possible.
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Affiliation(s)
- Jin-Gi Chang
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Young-In Yoon
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
| | - Sung-Gyu Lee
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S Hwang
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Ki-Hun Kim
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Chul-Soo Ahn
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Deok-Bog Moon
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Tae-Yong Ha
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Gi-Won Song
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Dong-Hwan Jung
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Gil-Chun Park
- Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jeong-Ik Park
- Department of Surgery, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
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Jung SY, Kim HM, Hwang S, Jeung DG, Rhee KJ, Oh JM. Physicochemical Properties and Hematocompatibility of Layered Double Hydroxide-Based Anticancer Drug Methotrexate Delivery System. Pharmaceutics 2020; 12:E1210. [PMID: 33327415 PMCID: PMC7764879 DOI: 10.3390/pharmaceutics12121210] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/04/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022] Open
Abstract
A layered double hydroxide (LDH)-based anticancer delivery system was investigated in terms of crystalline phase, particle size, hydrodynamic radius, zeta potential, etc. through in vitro and in vivo study. Size controlled LDH with anticancer drug methotrexate (MTX) incorporation was successfully prepared through step-by-step hydrothermal reaction and ion-exchange reaction. The MTX-LDH was determined to have a neutral surface charge and strong agglomeration in the neutral aqueous condition due to the surface adsorbed MTX; however, the existence of proteins in the media dramatically reduced agglomeration, resulting in the hydrodynamic radius of MTX-LDH being similar to the primary particle size. The protein fluorescence quenching assay exhibited that MTX readily reduced the fluorescence of proteins, suggesting that the interaction between MTX and proteins was strong. On the other hand, MTX-LDH showed much less binding constant to proteins compared with MTX, implying that the protein interaction of MTX was effectively blocked by the LDH carrier. The in vivo hemolysis assay after intravenous injection of MTX-LDH showed neither significant reduction in red blood cell number nor membrane damage. Furthermore, the morphology of red blood cells in a mouse model did not change upon MTX-LDH injection. Scanning electron microscopy showed that the MTX-LDH particles were attached on the blood cells without serious denaturation of cellular morphology, taking advantage of the cell hitchhiking property.
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Affiliation(s)
- Sang-Yong Jung
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Jung-gu, Korea; (S.-Y.J.); (D.-G.J.)
| | - Hyoung-Mi Kim
- Department of Chemistry and Medical Chemistry, Yonsei University MIRAE Campus, College of Science and Technology, Wonju 26493, Gangwon-do, Korea;
| | - Soonjae Hwang
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung 25451, Gangwon-do, Korea;
| | - Do-Gak Jeung
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Jung-gu, Korea; (S.-Y.J.); (D.-G.J.)
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, Yonsei University MIRAE Campus, College of Health Sciences, Wonju 26493, Gangwon-do, Korea
| | - Jae-Min Oh
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Jung-gu, Korea; (S.-Y.J.); (D.-G.J.)
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Kook YM, Hwang S, Kim H, Rhee KJ, Lee K, Koh WG. Cardiovascular tissue regeneration system based on multiscale scaffolds comprising double-layered hydrogels and fibers. Sci Rep 2020; 10:20321. [PMID: 33230134 PMCID: PMC7683622 DOI: 10.1038/s41598-020-77187-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 11/04/2020] [Indexed: 12/16/2022] Open
Abstract
We report a technique to reconstruct cardiovascular tissue using multiscale scaffolds incorporating polycaprolactone fibers with double-layered hydrogels comprising fibrin hydrogel surrounded by secondary alginate hydrogel. The scaffolds compartmentalized cells into the core region of cardiac tissue and the peripheral region of blood vessels to construct cardiovascular tissue, which was accomplished by a triple culture system of adipose-derived mesenchymal stem cells (ADSCs) with C2C12 myoblasts on polycaprolactone (PCL) fibers along with human umbilical vein endothelial cells (HUVECs) in fibrin hydrogel. The secondary alginate hydrogel prevented encapsulated cells from migrating outside scaffold and maintained the scaffold structure without distortion after subcutaneous implantation. According to in vitro studies, resultant scaffolds promoted new blood vessel formation as well as cardiomyogenic phenotype expression of ADSCs. Cardiac muscle-specific genes were expressed from stem cells and peripheral blood vessels from HUVECs were also successfully developed in subcutaneously implanted cell-laden multiscale scaffolds. Furthermore, the encapsulated stem cells modulated the immune response of scaffolds by secreting anti-inflammatory cytokines for successful tissue construction. Our study reveals that multiscale scaffolds can be promising for the remodeling and transplantation of cardiovascular tissue.
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Affiliation(s)
- Yun-Min Kook
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do, 220-710, Republic of Korea.,Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Hyerim Kim
- Program in Nanoscience and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do, 220-710, Republic of Korea
| | - Kangwon Lee
- Program in Nanoscience and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea. .,Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do, Republic of Korea.
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea.
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Jung M, Lee CK, Kim H, Ock CY, Bae J, Lee J, Kang D, Hwang S, Hahm K, Kim SJ, Chung H, Rha S. 1453P Safety and efficacy of vactosertib, a TGF-βR1 kinase inhibitor, in combination with paclitaxel in patients with metastatic gastric adenocarcinoma. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Shi Z, Wan Y, Hwang S. 318 Short-term exposure to Western diet (WD) predisposes mice to psoriasis-like skin and joint inflammation. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wu X, Shi Z, Hsu D, Huynh M, Yamada D, Chong J, Mendoza L, Hwang S. 857 An in vitro assay of inflammatory monocyte-keratinocyte activation predicts in vivo activity of BET inhibitors in a preclinical model of psoriasis. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.873] [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: 10/24/2022]
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Toussi A, Merleev A, Yamada D, Shi Z, Le S, Marusina A, Luxardi G, Adamopoulos I, Hwang S, Gudjonsson J, Maverakis E. 284 Identification of psoriasis-protective chemokine, FAM19A5, and IL17D expression in psoriatic skin. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.290] [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: 10/24/2022]
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Eom YW, Akter R, Li W, Lee S, Hwang S, Kim J, Cho MY. M1 Macrophages Promote TRAIL Expression in Adipose Tissue-Derived Stem Cells, Which Suppresses Colitis-Associated Colon Cancer by Increasing Apoptosis of CD133 + Cancer Stem Cells and Decreasing M2 Macrophage Population. Int J Mol Sci 2020; 21:ijms21113887. [PMID: 32485960 PMCID: PMC7312348 DOI: 10.3390/ijms21113887] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/22/2020] [Accepted: 05/28/2020] [Indexed: 12/12/2022] Open
Abstract
We have previously reported that adipose tissue-derived stem cells (ASCs) cultured at high cell density can induce cancer cell death through the expression of type I interferons and tumor necrosis factor (TNF)-related apoptosis-inducing ligands (TRAIL). Here, we investigated whether TRAIL-expressing ASCs induced by M1 macrophages can alleviate colitis-associated cancer in an azoxymethane (AOM)/dextran sodium sulfate (DSS) animal model. M1 macrophages significantly increased the TRAIL expression in ASCs, which induced the apoptosis of LoVo cells in a TRAIL-dependent manner. However, CD133knockout LoVo cells, generated using the CRISPR-Cas9 gene-editing system, were resistant to TRAIL. In the AOM/DSS-induced colitis-associated cancer model, the intraperitoneal transplantation of TRAIL-expressing ASCs significantly suppressed colon cancer development. Moreover, immunohistochemical staining revealed a low CD133 expression in tumors from the AOM/DSS + ASCs group when compared with tumors from the untreated group. Additionally, the ASC treatment selectively reduced the number of M2 macrophages in tumoral (45.7 ± 4.2) and non-tumoral mucosa (30.3 ± 1.5) in AOM/DSS + ASCs-treated animals relative to those in the untreated group (tumor 71.7 ± 11.2, non-tumor 94.3 ± 12.5; p < 0.001). Thus, TRAIL-expressing ASCs are promising agents for anti-tumor therapy, particularly to alleviate colon cancer by inducing the apoptosis of CD133+ cancer stem cells and decreasing the M2 macrophage population.
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Affiliation(s)
- Young Woo Eom
- Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea; (Y.W.E.); (S.H.)
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea
| | - Rokeya Akter
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea; (R.A.); (W.L.); (S.L.)
| | - Wanlu Li
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea; (R.A.); (W.L.); (S.L.)
| | - Suji Lee
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea; (R.A.); (W.L.); (S.L.)
| | - Soonjae Hwang
- Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea; (Y.W.E.); (S.H.)
| | - Jiye Kim
- Department of Plastic and Reconstructive Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea;
| | - Mee-Yon Cho
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea; (R.A.); (W.L.); (S.L.)
- Correspondence: ; Tel.: +82-33-731-1553
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Lee Y, Koo H, Kim M, Lee J, Hwang S, Moon J, Park H, Sung A, Choi Y, Jun H, Nam E. Neuroregenerative evidences demonstrated by diverse MRI analysis in cerebral palsy children who showed significant clinical improvement following repeated G-CSF injection. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.363] [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: 10/24/2022]
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42
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Hwang S, Johnson A, Fabbro S, Hastings J, Haverkos B, Chung C, Porcu P, William B. Topical imiquimod monotherapy for indolent primary cutaneous B-cell lymphomas: a single-institution experience. Br J Dermatol 2020; 183:386-387. [PMID: 32078154 DOI: 10.1111/bjd.18961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S Hwang
- Division of Hematology, Ohio State University, Columbus, OH, USA
| | - A Johnson
- Division of Hematology, Ohio State University, Columbus, OH, USA
| | - S Fabbro
- Division of Dermatology, Department of Medicine, Ohio State University, Columbus, OH, USA
| | - J Hastings
- Division of Dermatology, Department of Medicine, Ohio State University, Columbus, OH, USA
| | - B Haverkos
- Blood Cancer and BMT Program, University of Colorado School of Medicine, Aurora, CO, USA
| | - C Chung
- Division of Dermatology, Department of Medicine, Ohio State University, Columbus, OH, USA
| | - P Porcu
- Division of Hematologic Malignancies and Hematopoietic Stem Cell Transplantation, Department of Medical Oncology, Sidney Kimmel Cancer Center at Jefferson, Thomas Jefferson University, Philadelphia, PA, USA
| | - B William
- Division of Hematology, Ohio State University, Columbus, OH, USA
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Hwang S, Jo M, Hong JE, Park CO, Lee CG, Rhee KJ. Protective Effects of Zerumbone on Colonic Tumorigenesis in Enterotoxigenic Bacteroides fragilis (ETBF)-Colonized AOM/DSS BALB/c Mice. Int J Mol Sci 2020; 21:ijms21030857. [PMID: 32013191 PMCID: PMC7036928 DOI: 10.3390/ijms21030857] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 01/27/2020] [Indexed: 12/18/2022] Open
Abstract
Chronic inflammation has been linked to colitis-associated colorectal cancer in humans. The human symbiont enterotoxigenic Bacteroides fragilis (ETBF), a pro-carcinogenic bacterium, has the potential to initiate and/or promote colorectal cancer. Antibiotic treatment of ETBF has shown promise in decreasing colonic polyp formation in murine models of colon cancer. However, there are no reported natural products that have shown efficacy in decreasing polyp burden. In this study, we investigated the chemopreventive effects of oral administration of zerumbone in ETBF-colonized mice with azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced tumorigenesis. Zerumbone significantly reduced the severity of disease activity index (DAI) scores as well as several parameters of colonic inflammation (i.e., colon weight, colon length, cecum weight and spleen weight). In addition, inflammation of the colon and cecum as well as hyperplasia was reduced. Zerumbone treatment significantly inhibited colonic polyp numbers and prevented macroadenoma progression. Taken together, these findings suggest that oral treatment with zerumbone inhibited ETBF-promoted colon carcinogenesis in mice indicating that zerumbone could be employed as a promising protective agent against ETBF-mediated colorectal cancer.
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Affiliation(s)
- Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, MIRAE Campus, Yonsei University, Wonju, Gangwon-do 26493, Korea; (S.H.); (M.J.); (J.E.H.); (C.O.P.); (C.G.L.)
- Cell Therapy and Tissue Engineering Center, Wonju College of Medicine, Yonsei University, Wonju, Gangwon-do 26426, Korea
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Health Sciences, MIRAE Campus, Yonsei University, Wonju, Gangwon-do 26493, Korea; (S.H.); (M.J.); (J.E.H.); (C.O.P.); (C.G.L.)
| | - Ju Eun Hong
- Department of Biomedical Laboratory Science, College of Health Sciences, MIRAE Campus, Yonsei University, Wonju, Gangwon-do 26493, Korea; (S.H.); (M.J.); (J.E.H.); (C.O.P.); (C.G.L.)
| | - Chan Oh Park
- Department of Biomedical Laboratory Science, College of Health Sciences, MIRAE Campus, Yonsei University, Wonju, Gangwon-do 26493, Korea; (S.H.); (M.J.); (J.E.H.); (C.O.P.); (C.G.L.)
| | - Chang Gun Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, MIRAE Campus, Yonsei University, Wonju, Gangwon-do 26493, Korea; (S.H.); (M.J.); (J.E.H.); (C.O.P.); (C.G.L.)
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, MIRAE Campus, Yonsei University, Wonju, Gangwon-do 26493, Korea; (S.H.); (M.J.); (J.E.H.); (C.O.P.); (C.G.L.)
- Correspondence: ; Tel.: +82-33-760-2445; Fax: +82-33-760-2195
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Makepeace L, Scoggins M, Mitrea B, Li Y, Edwards A, Tinkle CL, Hwang S, Gajjar A, Patay Z. MRI Patterns of Extrapontine Lesion Extension in Diffuse Intrinsic Pontine Gliomas. AJNR Am J Neuroradiol 2020; 41:323-330. [PMID: 31974084 DOI: 10.3174/ajnr.a6391] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/10/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND PURPOSE Diffuse intrinsic pontine glioma is a devastating childhood cancer that despite being primarily diagnosed by MR imaging alone, lacks robust prognostic imaging features. This study investigated patterns and quantification of extrapontine lesion extensions as potential prognostic imaging biomarkers for survival in children with newly diagnosed diffuse intrinsic pontine glioma. MATERIALS AND METHODS Volumetric analysis of baseline MR imaging studies was completed in 131 patients with radiographically defined typical diffuse intrinsic pontine gliomas. Extrapontine tumor extension was classified according to the direction of extension: midbrain, medulla oblongata, and right and left middle cerebellar peduncles; various extrapontine lesion extension patterns were evaluated. The Kaplan-Meier method was used to estimate survival differences; linear regression was used to evaluate clinical-radiographic variables prognostic of survival. RESULTS At least 1 extrapontine lesion extension was observed in 125 patients (95.4%). Of the 11 different extrapontine lesion extension patterns encountered in our cohort, 2 were statistically significant predictors of survival. Any extension into the middle cerebellar peduncles was prognostic of shorter overall survival (P = .01), but extension into both the midbrain and medulla oblongata but without extension into either middle cerebellar peduncle was prognostic of longer overall survival compared with those having no extension (P = .04) or those having any other pattern of extension (P < .001). CONCLUSIONS Within this large cohort of patients with typical diffuse intrinsic pontine gliomas, 2 specific extrapontine lesion extension patterns were associated with a significant overall survival advantage or disadvantage. Our findings may be valuable for risk stratification and radiation therapy planning in future clinical trials.
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Affiliation(s)
- L Makepeace
- From the Departments of Diagnostic Imaging (L.M., M.S., B.M., A.E., S.H., Z.P.)
| | - M Scoggins
- From the Departments of Diagnostic Imaging (L.M., M.S., B.M., A.E., S.H., Z.P.)
| | - B Mitrea
- From the Departments of Diagnostic Imaging (L.M., M.S., B.M., A.E., S.H., Z.P.)
| | | | - A Edwards
- From the Departments of Diagnostic Imaging (L.M., M.S., B.M., A.E., S.H., Z.P.)
| | | | - S Hwang
- From the Departments of Diagnostic Imaging (L.M., M.S., B.M., A.E., S.H., Z.P.)
| | - A Gajjar
- Oncology (A.G.), St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Z Patay
- From the Departments of Diagnostic Imaging (L.M., M.S., B.M., A.E., S.H., Z.P.)
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Kim J, Lee S, Ahn Y, Lee E, Park M, Hwang S, Almurayshid A, Lim B, Oh S. Role of senescent fibroblasts in the development of idiopathic guttate hypomelanosis. Br J Dermatol 2020; 182:1481-1482. [DOI: 10.1111/bjd.18801] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- J.Y. Kim
- Department of Dermatology and Cutaneous Biology Research Institute Severance Hospital Yonsei University College of Medicine Seoul Korea
| | - S.‐H. Lee
- Department of Dermatology Seoul National University Hospital Seoul Korea
| | - Y. Ahn
- Department of Dermatology and Cutaneous Biology Research Institute Severance Hospital Yonsei University College of Medicine Seoul Korea
| | - E.J. Lee
- Department of Dermatology and Cutaneous Biology Research Institute Severance Hospital Yonsei University College of Medicine Seoul Korea
- Brain Korea 21 PLUS Project for Medical Science Yonsei University College of Medicine Seoul Korea
| | - M.‐Y. Park
- Department of Dermatology and Cutaneous Biology Research Institute Severance Hospital Yonsei University College of Medicine Seoul Korea
| | - S. Hwang
- Department of Dermatology and Cutaneous Biology Research Institute Severance Hospital Yonsei University College of Medicine Seoul Korea
| | - A. Almurayshid
- Department of Medicine College of Medicine Prince Sattam Bin Abdulaziz University Al‐Kharj Saudi Arabia
| | - B.J. Lim
- Department of Pathology Yonsei University College of Medicine Seoul Korea
| | - S.H. Oh
- Department of Dermatology and Cutaneous Biology Research Institute Severance Hospital Yonsei University College of Medicine Seoul Korea
- Brain Korea 21 PLUS Project for Medical Science Yonsei University College of Medicine Seoul Korea
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46
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Byun CS, Hwang S, Woo SH, Kim MY, Lee JS, Lee JI, Kong JH, Bae KS, Park IH, Kim SH, Eom YW. Adipose Tissue-Derived Mesenchymal Stem Cells Suppress Growth of Huh7 Hepatocellular Carcinoma Cells via Interferon (IFN)-β-Mediated JAK/STAT1 Pathway in vitro. Int J Med Sci 2020; 17:609-619. [PMID: 32210710 PMCID: PMC7085211 DOI: 10.7150/ijms.41354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 02/03/2020] [Indexed: 01/18/2023] Open
Abstract
Interferon (IFN)-β and/or tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) secreted by adipose tissue-derived mesenchymal stem cells (ASCs) have been proposed as key mechanistic factors in anti-cancer efficacy in lung cancer and breast cancer cells, where they act through paracrine signaling. We hypothesized that IFN-β and TRAIL produced by ASCs suppress proliferation of hepatocellular carcinoma cells (HCCs). The present study evaluated the anti-cancer effects of ASCs on HCCs in vitro. We found that indirect co-culture with ASCs diminished growth of Huh7 hepatocellular carcinoma cells with increased protein levels of p53/p21 and phosphorylated STAT1 (pSTAT1), without apoptosis. Treatment with ASC-conditioned medium (ASC-CM) also decreased growth of Huh7 cells through elevated p53/p21 and pSTAT1 signaling. ASC-CM-mediated inhibition of cell growth was neutralized in Huh7 cells treated with anti-IFN-β antibody compared to that in ASC-CM-treated Huh7 cells incubated with an anti-TRAIL antibody. Treatment with JAK1/JAK2 inhibitors recovered inhibition of growth in Huh7 cells incubated in ASC-CM or IFN-β via down-regulation of pSTAT1/p53/p21. However, treatment of IFN-β resulted in no alterations in resistance of Huh7 cells to TRAIL. Our findings suggest that ASCs decrease growth through activated STAT1-mediated p53/p21 by IFN-β, but not TRAIL, in Huh7 cells.
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Affiliation(s)
- Chun Sung Byun
- Department of Cardiovascular and Thoracic Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Soonjae Hwang
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Sung-Hun Woo
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, Wonju, Gangwon-do, 26493, Republic of Korea
| | - Moon Young Kim
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Gangwon-do 26426, Republic of Korea
| | - Jin Suk Lee
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Jong In Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Gangwon-do 26426, Republic of Korea
| | - Jee Hyun Kong
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Gangwon-do 26426, Republic of Korea
| | - Keum Seok Bae
- Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Il Hwan Park
- Department of Cardiovascular and Thoracic Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Sung Hoon Kim
- Department of General Surgery, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
| | - Young Woo Eom
- Regeneration Medicine Research Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea.,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Republic of Korea
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47
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Hwang S, Lee CG, Jo M, Park CO, Gwon SY, Hwang S, Yi HC, Lee SY, Eom YB, Karim B, Rhee KJ. Enterotoxigenic Bacteroides fragilis infection exacerbates tumorigenesis in AOM/DSS mouse model. Int J Med Sci 2020; 17:145-152. [PMID: 32038097 PMCID: PMC6990882 DOI: 10.7150/ijms.38371] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 11/05/2019] [Indexed: 12/19/2022] Open
Abstract
The azoxymethane (AOM)/dextran sulfate sodium (DSS) murine model is commonly used to study colitis-associated cancer. The human commensal bacterium, enterotoxigenic Bacteroides fragilis (ETBF) secretes the Bacteroides fragilis toxin (BFT) which is necessary and sufficient to cause colitis. We report that BALB/c mice infected with WT-ETBF and administered three cycles of AOM/DSS developed numerous, large-sized polyps predominantly in the colorectal region. In addition, AOM/DSS-treated BALB/c mice orally inoculated with wild-type nontoxigenic Bacteroides fragilis (WT-NTBF) overexpressing bft (rETBF) developed numerous polyps whereas mice infected with WT-NTBF overexpressing a biologically inactive bft (rNTBF) did not promote polyp formation. Unexpectedly, the combination of AOM+ETBF did not induce polyp formation whereas ETBF+DSS did induce polyp development in a subset of BALB/c mice. In conclusion, WT-ETBF promoted polyp development in AOM/DSS murine model with increased colitis in BALB/c mice. The model described herein provides an experimental platform for understanding ETBF-induced colonic tumorigenesis and studying colorectal cancer in wild-type mice.
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Affiliation(s)
- Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Republic of Korea.,Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, 26426, Republic of Korea
| | - Chang Gun Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Republic of Korea
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Republic of Korea
| | - Chan Oh Park
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Republic of Korea
| | - Sun-Yeong Gwon
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Republic of Korea
| | - Samnoh Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Republic of Korea
| | - Hye Chin Yi
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Republic of Korea
| | - So-Yeon Lee
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan, Chungnam, 31538, Republic of Korea
| | - Yong-Bin Eom
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan, Chungnam, 31538, Republic of Korea.,Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan, Chungnam, 31538, Republic of Korea
| | - Baktiar Karim
- Leidos Biomedical Research Inc, Frederick National Laboratory for Cancer Research, Frederick, MD, 21702, U.S.A
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Republic of Korea
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48
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Hwang S, Hwang S, Jo M, Lee CG, Rhee KJ. Oral administration of Korean propolis extract ameliorates DSS-induced colitis in BALB/c mice. Int J Med Sci 2020; 17:1984-1991. [PMID: 32788877 PMCID: PMC7415397 DOI: 10.7150/ijms.44834] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 07/14/2020] [Indexed: 01/08/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic disorder of the gastrointestinal tract characterized by inflammation. Although IBD is usually treated with anti-inflammatory agents, most of these treatments have limited efficacy. Propolis is a viscous mixture that honeybees produce by mixing saliva and honeycomb with exudate gathered from tree buds, sap flows, or other botanical sources. Although propolis has proved to ameliorate several inflammatory disorders, its therapeutic properties vary by geographical location, plant resources, bee species, and the solvents used in the extraction. In this study, we investigated the effects of Korean propolis in BALB/c mice with dextran sulfate sodium (DSS)-induced colitis. Korean propolis extract was diluted in drinking water, and the BALB/c mice were given DSS for 7 days and Korean propolis for 17 days. The mice were sacrificed on day 17. In the DSS-induced colitis model, Korean propolis significantly decreased the severity of colitis, as assessed by body weight, spleen weight, and colonic length. Furthermore, Korean propolis induced the reduction of the inflammatory cytokine KC, infiltration of immune cells, and colonic hyperplasia in mice with DSS-induced colitis. The Korean propolis also decreased the loss of goblet cells and antibody-reactivity to inflammatory markers in the colons of mice administered DSS. These results demonstrate for the first time that Korean propolis has an ameliorative effect on DSS-induced colonic inflammation in BALB/c mice.
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Affiliation(s)
- Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Samnoh Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Chang Gun Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University MIRAE Campus, Wonju, Gangwon-do 26493, Republic of Korea
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49
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Hwang S, Jo M, Hong JE, Park CO, Lee CG, Yun M, Rhee KJ. Zerumbone Suppresses Enterotoxigenic Bacteroides fragilis Infection-Induced Colonic Inflammation through Inhibition of NF-κΒ. Int J Mol Sci 2019; 20:ijms20184560. [PMID: 31540059 PMCID: PMC6770904 DOI: 10.3390/ijms20184560] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/08/2019] [Accepted: 09/10/2019] [Indexed: 02/06/2023] Open
Abstract
Enterotoxigenic Bacteroides fragilis (ETBF) is human intestinal commensal bacterium and a potent initiator of colitis through secretion of the metalloprotease Bacteroides fragilis toxin (BFT). BFT induces cleavage of E-cadherin in colon cells, which subsequently leads to NF-κB activation. Zerumbone is a key component of the Zingiber zerumbet (L.) Smith plant and can exhibit anti-bacterial and anti-inflammatory effects. However, whether zerumbone has anti-inflammatory effects in ETBF-induced colitis remains unknown. The aim of this study was to determine the anti-inflammatory effect of orally administered zerumbone in a murine model of ETBF infection. Wild-type C57BL/6 mice were infected with ETBF and orally administered zerumbone (30 or 60 mg/kg) once a day for 7 days. Treatment of ETBF-infected mice with zerumbone prevented weight loss and splenomegaly and reduced colonic inflammation with decreased macrophage infiltration. Zerumbone treatment significantly decreased expression of IL-17A, TNF-α, KC, and inducible nitric oxide synthase (iNOS) in colonic tissues of ETBF-infected mice. In addition, serum levels of KC and nitrite was also diminished. Zerumbone-treated ETBF-infected mice also showed decreased NF-κB signaling in the colon. HT29/C1 colonic epithelial cells treated with zerumbone suppressed BFT-induced NF-κB signaling and IL-8 secretion. However, BFT-mediated E-cadherin cleavage was unaffected. Furthermore, zerumbone did not affect ETBF colonization in mice. In conclusion, zerumbone decreased ETBF-induced colitis through inhibition of NF-κB signaling.
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Affiliation(s)
- Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
- Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea.
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
| | - Ju Eun Hong
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
| | - Chan Oh Park
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
| | - Chang Gun Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul 05006, Korea.
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
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50
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Ahn Y, Seo J, Hwang S, Lee E, Kim J, Park M, Almurayshid A, Yu J, Oh S. 364 Adenosine triphosphate-P2X7 axis mediates melanocyte death and skin trafficking of CD8+ T cells by CXCL9 through inflammasome activation in vitiligo. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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