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Lee HR, Lee S, Yoo IS, Yoo SJ, Kwon MH, Joung CI, Park JA, Wook Kang S, Kim J. CD14+ monocytes and soluble CD14 of synovial fluid are associated with osteoarthritis progression. Arch Rheumatol 2022; 37:335-343. [PMID: 36589618 PMCID: PMC9791551 DOI: 10.46497/archrheumatol.2022.9078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/02/2021] [Indexed: 01/15/2023] Open
Abstract
Objectives This study aims to investigate the role of cluster of differentiation 14 (CD14) expressed monocytes and soluble CD14-mediated pathway in the synovial inflammation of knee osteoarthritis (OA). Patients and methods Between May 2012 and July 2013, a total of 35 patients with knee OA (9 males, 26 females; mean age: 66.3±8.8 years; range, 52 to 79 years) were included in this cross-sectional study. Synovial fluid was obtained from knee joints of 35 OA patients. The CD14+ monocytes from synovial fluid mononuclear cells (SFMCs) were isolated using the MACS. The fibroblast-like synoviocytes (FLSs) isolated from knee joint tissue were incubated with recombinant CD14 and lipopolysaccharide (LPS) for 24 h. Cytokine profiling was performed with the Luminex® Performance Assay or magnetic bead panel kit. The expression of CD14 and CD16 was analyzed by immunohistochemistry and flow cytometry. Results The concentration of sCD14 in synovial fluid was correlated with the interleukin-6 (IL-6) level (n=35) (ρ=0.654, p<0.001). The culture supernatants of CD14+ monocytes isolated from SFMC (n=15) showed a correlation between sCD14 and IL-6 (ρ=0.784, p=0.001), along with complement component 3 (ρ=0.756, p=0.010), IL-1b (ρ=0.652, p=0.012), and tumor necrosis factor-alpha (ρ=0.806, p=0.001). Following recombinant CD14 and LPS treatment, OA FLS synergistically enhanced the secretion of IL-6, IL-8, and matrix metalloproteinase 3 (n=3, p<0.05). In five paired-samples from identical patients, the proportions of CD14+ monocytes were significantly elevated in recurred synovial fluid compared to those in initial synovial fluid (p=0.043). When monocyte subsets were analyzed in SFMC (n=26), CD14+CD16+monocytes were abundant (p=0.019) and had higher toll-like receptor 4 expression than CD14+CD16- (p<0.001). Conclusion Our study results suggest that CD14+ monocytes and the sCD14-mediated pathway play an important role in OA aggravation through inflammatory cytokine secretion.
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Affiliation(s)
- Ha-Reum Lee
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
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Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Sunyoung Lee
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - In Seol Yoo
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Su-Jin Yoo
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Mi-Hye Kwon
- Department of Internal Medicine, Konyang University School of Medicine, Daejeon, Republic of Korea
| | - Chung-il Joung
- Department of Internal Medicine, Konyang University School of Medicine, Daejeon, Republic of Korea
| | - Ji Ah Park
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
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Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Jinhyun Kim
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
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Yoo SJ, Lee HR, Kim J, Yoo IS, Park CK, Kang SW. Hypoxia-Inducible Factor-2 Alpha Regulates the Migration of Fibroblast-like Synoviocytes via Oxidative Stress-Induced CD70 Expression in Patients with Rheumatoid Arthritis. Int J Mol Sci 2022; 23:ijms23042342. [PMID: 35216458 PMCID: PMC8877612 DOI: 10.3390/ijms23042342] [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: 02/04/2022] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 02/04/2023] Open
Abstract
This study aimed to examine the role of CD70, which is highly expressed on fibroblast-like synoviocytes (FLS), in rheumatoid arthritis (RA) patients. FLS isolated from RA (n = 14) and osteoarthritis (OA, n = 4) patients were stimulated with recombinant interleukin-17 (IL-17; 5 ng/mL) and tumor necrosis factor alpha (TNF-α; 5 ng/mL) for 24 h. Expression of CD70, CD27/soluble CD27 (sCD27), and hypoxia-inducible factor-2 alpha (HIF-2α) was analyzed by RT-qPCR, flow cytometry, and ELISA assays, respectively. Reactive oxygen species (ROS) expression and cell migration were also examined. The HIF-2α inhibitor PT-2385 and CD70 inhibitor BU69 were used to specifically suppress these pathways. Stimulation with IL-17 and TNF-α significantly induced CD70 expression in RA FLS. Although the synovial fluids from patients with RA contained high levels of sCD27, surface expression of CD27, a ligand of CD70, was rarely detected in RA FLS. Cytokine-induced CD70 expression was significantly decreased following antioxidant treatment. Following HIF-2α inhibition, RA FLS had decreased expression of CD70 and ROS levels. Migration of RA FLS was also inhibited by inhibition of CD70 or HIF-2α. The surface expression of CD70 is regulated by HIF-2α and ROS levels and is a key contributor to cytokine-enhanced migration in RA FLS.
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Affiliation(s)
- Su-Jin Yoo
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon 35015, Korea; (S.-J.Y.); (H.-R.L.); (J.K.)
- Research Institute for Medical Sciences, Chungnam National University School of Medicine, 266 Munhwaro, Daejeon 35015, Korea
| | - Ha-Reum Lee
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon 35015, Korea; (S.-J.Y.); (H.-R.L.); (J.K.)
- Research Institute for Medical Sciences, Chungnam National University School of Medicine, 266 Munhwaro, Daejeon 35015, Korea
| | - Jinhyun Kim
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon 35015, Korea; (S.-J.Y.); (H.-R.L.); (J.K.)
| | - In Seol Yoo
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Sejong Hospital, 20 Bodeum-7-ro, Sejong 30099, Korea; (I.S.Y.); (C.K.P.)
| | - Chan Keol Park
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Sejong Hospital, 20 Bodeum-7-ro, Sejong 30099, Korea; (I.S.Y.); (C.K.P.)
| | - Seong Wook Kang
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon 35015, Korea; (S.-J.Y.); (H.-R.L.); (J.K.)
- Research Institute for Medical Sciences, Chungnam National University School of Medicine, 266 Munhwaro, Daejeon 35015, Korea
- Correspondence: ; Tel.: +82-42-338-2428
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Choi YK, Moon JY, Kim J, Yoo IS, Kwon GY, Bae H, Song MS, Kym S. Postvaccination Multisystem Inflammatory Syndrome in Adult with No Evidence of Prior SARS-CoV-2 Infection. Emerg Infect Dis 2021; 28:411-414. [PMID: 34852213 PMCID: PMC8798698 DOI: 10.3201/eid2802.211938] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Ten days after receiving the first dose of coronavirus disease vaccine, a 22-year-old woman in South Korea experienced myocarditis, myopathy, pericarditis, and gastroenteritis; rash subsequently developed. There was no evidence of prior infection with severe acute respiratory syndrome coronavirus 2. The diagnosis was multisystem inflammatory syndrome resulting from coronavirus disease vaccination.
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Yoo IS, Lee YR, Kang SW, Kim J, Joo HK, Yoo SJ, Park CK, Lee HR, Park JA, Jeon BH. Elevated APE1/Ref-1 Levels of Synovial Fluids in Patients with Rheumatoid Arthritis: Reflection of Disease Activity. J Clin Med 2021; 10:jcm10225324. [PMID: 34830606 PMCID: PMC8621376 DOI: 10.3390/jcm10225324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/10/2021] [Accepted: 11/15/2021] [Indexed: 11/16/2022] Open
Abstract
There is growing evidence that apurinic/apyrimidinic endonuclease 1/redox factor-1 (APE1/Ref-1) regulates inflammatory responses. Rheumatoid arthritis (RA) is an autoimmune disease, which is characterized with synovitis and joint destruction. Therefore, this study was planned to investigate the relationship between APE1/Ref-1 and RA. Serum and synovial fluid (SF) were collected from 46 patients with RA, 45 patients with osteoarthritis (OA), and 30 healthy control (HC) patients. The concentration of APE1/Ref-1 in serum or SF was measured using the sandwich enzyme-linked immunosorbent assay (ELISA). The disease activity in RA patients was measured using the 28-joint disease activity score (DAS28). The serum APE1/Ref-1 levels in RA patients were significantly increased compared to HC and OA patients (0.44 ± 0.39 ng/mL for RA group vs. 0.19 ± 0.14 ng/mL for HC group, p < 0.05 and vs. 0.19 ± 0.11 ng/mL for OA group, p < 0.05). Likewise, the APE1/Ref-1 levels of SF in RA patients were also significantly increased compared to OA patients (0.68 ± 0.30 ng/mL for RA group vs. 0.31 ± 0.12 ng/mL for OA group, p < 0.001). The APE1/Ref-1 concentration in SF of RA patients was positively correlated with DAS28. Thus, APE1/Ref-1 may reflect the joint inflammation and be associated with disease activity in RA.
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Affiliation(s)
- In Seol Yoo
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Sejong Hospital, 20 Bodeum 7-ro, Sejong 30099, Korea; (I.S.Y.); (C.K.P.)
- Department of Internal Medicine, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (S.W.K.); (J.K.); (S.-J.Y.)
| | - Yu-Ran Lee
- Research Institute for Medical Sciences, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (Y.-R.L.); (H.-K.J.); (H.-R.L.); (J.A.P.)
- Department of Physiology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (S.W.K.); (J.K.); (S.-J.Y.)
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Korea
| | - Jinhyun Kim
- Department of Internal Medicine, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (S.W.K.); (J.K.); (S.-J.Y.)
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Korea
| | - Hee-Kyoung Joo
- Research Institute for Medical Sciences, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (Y.-R.L.); (H.-K.J.); (H.-R.L.); (J.A.P.)
- Department of Physiology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea
| | - Su-Jin Yoo
- Department of Internal Medicine, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (S.W.K.); (J.K.); (S.-J.Y.)
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Korea
| | - Chan Keol Park
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Sejong Hospital, 20 Bodeum 7-ro, Sejong 30099, Korea; (I.S.Y.); (C.K.P.)
- Department of Internal Medicine, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (S.W.K.); (J.K.); (S.-J.Y.)
| | - Ha-Reum Lee
- Research Institute for Medical Sciences, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (Y.-R.L.); (H.-K.J.); (H.-R.L.); (J.A.P.)
| | - Ji Ah Park
- Research Institute for Medical Sciences, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (Y.-R.L.); (H.-K.J.); (H.-R.L.); (J.A.P.)
| | - Byeong-Hwa Jeon
- Research Institute for Medical Sciences, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea; (Y.-R.L.); (H.-K.J.); (H.-R.L.); (J.A.P.)
- Department of Physiology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon 35015, Korea
- Correspondence: ; Tel.: +82-42-580-8214
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Chung SW, Yoo IS, Kim J, Kang SW, Kwon M, Joung CI, Choi IA, Chang SH, Kang MI, Hong SJ, Lee YA. Comparison of the 2017 EULAR/ACR Criteria with Clinicoserologic Criteria for the Classification of Idiopathic Inflammatory Myopathies in Korean Patients. Yonsei Med J 2021; 62:424-430. [PMID: 33908213 PMCID: PMC8084694 DOI: 10.3349/ymj.2021.62.5.424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 02/23/2021] [Accepted: 03/04/2021] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To investigate correlations between myositis-specific autoantibodies (MSA) or myositis-associated antibodies (MAA) and clinical features, thereby demonstrating the utility of clinicoserologic classification in idiopathic inflammatory myopathies (IIM) patients. MATERIALS AND METHODS We conducted a multicenter study of 108 adult patients (age ≥18 years) who were diagnosed with IIM by Peter and Bohan criteria or 2004 European Neuromuscular Centre (ENMC) criteria. Clinical data were obtained by medical record review. Immunoblot assay with Euroline strip (EUROIMMUN, Germany) was performed using the sera of dermatomyositis (DM, n=56), polymyositis (PM, n=45), amyopathic DM (n=5), DM sine dermatitis (n=1), and immune mediated necrotizing myopathy (n=1) patients. Patients were classified based on two classifications: 2017 EULAR/ACR and novel clinicoserologic classification. RESULTS According to 2017 EULAR/ACR criteria, DM and PM were the most and the second most frequent entities. Overlap myositis was the major entity of IIM, and the frequency of PM was significantly lower when applying clinicoserologic classification criteria. Sixty-nine (63.9%) patients had one or more MSA, and 61 (56.5%) patients had one or more MAA. Interstitial lung disease was closely associated with anti-MDA5 and anti-ARS, and DM-specific skin lesions were frequently observed in patients with anti-TIF1γ, anti-SRP, and anti-MDA5. CONCLUSION The clinicoserologic criteria based on MSA/MAA positivity could reflect more precise clinical features of IIM. Establishment of a laboratory system routinely available to screen for MSA/MAA status will be beneficial to provide precise diagnosis and proper management of IIM patients.
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Affiliation(s)
- Sang Wan Chung
- Division of Rheumatology, Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
| | - In Seol Yoo
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Jinhyun Kim
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Mihye Kwon
- Department of Internal Medicine, College of Medicine, Konyang University, Daejeon, Korea
| | - Chung Il Joung
- Department of Internal Medicine, College of Medicine, Konyang University, Daejeon, Korea
| | - In Ah Choi
- Division of Rheumatology, Department of Internal Medicine, Chungbuk National University College of Medicine, Cheong-ju, Korea
| | - Sung Hae Chang
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Mi Il Kang
- Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Korea
| | - Seung Jae Hong
- Division of Rheumatology, Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
| | - Yeon Ah Lee
- Division of Rheumatology, Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea.
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Lee HR, Yoo SJ, Kim J, Yoo IS, Park CK, Kang SW. The effect of nicotinamide adenine dinucleotide phosphate oxidase 4 on migration and invasion of fibroblast-like synoviocytes in rheumatoid arthritis. Arthritis Res Ther 2020; 22:116. [PMID: 32414400 PMCID: PMC7227051 DOI: 10.1186/s13075-020-02204-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/28/2020] [Indexed: 12/12/2022] Open
Abstract
Background Reactive oxygen species (ROS) regulate the migration and invasion of fibroblast-like synoviocytes (FLS), which are key effector cells in rheumatoid arthritis (RA) pathogenesis. Nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4) induces ROS generation and, consequently, enhances cell migration. Despite the important interrelationship between RA, FLS, and ROS, the effect of NOX4 on RA pathogenesis remains unclear. Methods FLS isolated from RA (n = 5) and osteoarthritis (OA, n = 5) patients were stimulated with recombinant interleukin 17 (IL-17; 10 ng/ml) and tumor necrosis factor alpha (TNF-α; 10 ng/ml) for 1 h. Cell migration, invasion, adhesion molecule expression, vascular endothelial growth factor (VEGF) secretion, and ROS expression were examined. The mRNA and protein levels of NOX4 were analyzed by RT-qPCR and western blotting, respectively. The NOX4 inhibitor GLX351322 and NOX4 siRNA were used to inhibit NOX4 to probe the effect of NOX4 on these cellular processes. Results Migration of RA FLS was increased 2.48-fold after stimulation with IL-17 and TNF-α, while no difference was observed for OA FLS. ROS expression increased in parallel with invasiveness of FLS following cytokine stimulation. When the expression of NOX was examined, NOX4 was significantly increased by 9.73-fold in RA FLS compared to unstimulated FLS. Following NOX4 inhibition, cytokine-induced vascular cell adhesion molecule 1 (VCAM1), VEGF, and migration and invasion capacity of RA FLS were markedly decreased to unstimulated levels. Conclusion NOX4 is a key contributor to cytokine-enhanced migration and invasion via modulation of ROS, VCAM1, and VEGF in RA FLS.
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Affiliation(s)
- Ha-Reum Lee
- Research Institute for Medical Sciences, Chungnam National University School of Medicine, 266 Munhwaro, Daejeon, Republic of Korea.,Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon, 35015, Republic of Korea
| | - Su-Jin Yoo
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon, 35015, Republic of Korea
| | - Jinhyun Kim
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon, 35015, Republic of Korea
| | - In Seol Yoo
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon, 35015, Republic of Korea
| | - Chan Keol Park
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon, 35015, Republic of Korea
| | - Seong Wook Kang
- Research Institute for Medical Sciences, Chungnam National University School of Medicine, 266 Munhwaro, Daejeon, Republic of Korea. .,Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, 282 Munhwaro, Daejeon, 35015, Republic of Korea.
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Affiliation(s)
- Chan Keol Park
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Su-Jin Yoo
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - In Seol Yoo
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Jinhyun Kim
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Seung Cheol Shim
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Seong Wook Kang
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Korea
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Affiliation(s)
- In Seol Yoo
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Jinhyun Kim
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
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Kim Y, Song KS, Sohn EH, Kang SW, Yoo IS, Shim SC, Yoo SJ, Kim J. Anti-TIF1γ antibody and the expression of TIF1γ in idiopathic inflammatory myopathies. Int J Rheum Dis 2018; 22:314-320. [DOI: 10.1111/1756-185x.13424] [Citation(s) in RCA: 6] [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: 04/26/2018] [Revised: 07/26/2018] [Accepted: 09/28/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Young Kim
- Department of Internal Medicine; Daejeon Veterans Hospital; Daejeon Korea
| | - Kyu Sang Song
- Department of Pathology; Chungnam National University College of Medicine; Daejeon Korea
| | - Eun Hee Sohn
- Department of Neurology; Chungnam National University College of Medicine; Daejeon Korea
| | - Seong Wook Kang
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
| | - In Seol Yoo
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
| | - Seung-Cheol Shim
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
| | - Su-Jin Yoo
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
| | - Jinhyun Kim
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
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Ha YJ, Choi YS, Han DW, Kang EH, Yoo IS, Kim JH, Kang SW, Lee EY, Song YW, Lee YJ. PIM-1 kinase is a novel regulator of proinflammatory cytokine-mediated responses in rheumatoid arthritis fibroblast-like synoviocytes. Rheumatology (Oxford) 2018; 58:154-164. [DOI: 10.1093/rheumatology/key261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Indexed: 12/27/2022] Open
Affiliation(s)
- You-Jung Ha
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yong Seok Choi
- Medical Science Research Institute, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Woo Han
- Department of Translational Medicine, College of Medicine, Seoul National University, Seoul, Korea
| | - Eun Ha Kang
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - In Seol Yoo
- Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea
| | - Jin Hyun Kim
- Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea
| | - Seong Wook Kang
- Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea
| | - Eun Young Lee
- Department of Internal Medicine, Medical Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Yeong Wook Song
- Department of Internal Medicine, Medical Research Institute, Seoul National University College of Medicine, Seoul, Korea
- WCU Department of Molecular Medicine and Biopharmaceutical Sciences, Medical Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Yun Jong Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Translational Medicine, College of Medicine, Seoul National University, Seoul, Korea
- Department of Internal Medicine, Medical Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Sun BJ, Park JH, Yoo SJ, Park Y, Kim YJ, Lee IS, Kim J, Yoo IS, Shim SC, Kang SW, Kim JH, Lee JH, Choi SW, Jeong JO, Seong IW. Intrinsic changes of left ventricular function in patients with Behçet disease and comparison according to systemic disease activity. Echocardiography 2018; 35:809-816. [DOI: 10.1111/echo.13844] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Byung Joo Sun
- Division of Cardiology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Jae-Hyeong Park
- Division of Cardiology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Su-Jin Yoo
- Division of Rheumatology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Yunseon Park
- Cardiac Imaging Laboratory; Chungnam National University Hospital; Daejeon Korea
| | - Yeon Ju Kim
- Cardiac Imaging Laboratory; Chungnam National University Hospital; Daejeon Korea
| | - In Suk Lee
- Cardiac Imaging Laboratory; Chungnam National University Hospital; Daejeon Korea
| | - Jinhyun Kim
- Division of Rheumatology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - In Seol Yoo
- Division of Rheumatology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Seung Cheol Shim
- Division of Rheumatology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Seong Wook Kang
- Division of Rheumatology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Jun-Hyung Kim
- Division of Cardiology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Jae-Hwan Lee
- Division of Cardiology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Si Wan Choi
- Division of Cardiology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - Jin-Ok Jeong
- Division of Cardiology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
| | - In-Whan Seong
- Division of Cardiology; Department of Internal Medicine; School of Medicine; Chungnam National University; Chungnam National University Hospital; Daejeon Korea
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Yoo SJ, Park JH, Park Y, Lee JH, Sun BJ, Kim J, Yoo IS, Shim SC, Kang SW. Prevalence of Pulmonary Arterial Hypertension in Korean Adult Patients with Systemic Sclerosis: Result of a Pilot Echocardiographic Screening Study. J Cardiovasc Ultrasound 2016; 24:312-316. [PMID: 28090259 PMCID: PMC5234342 DOI: 10.4250/jcu.2016.24.4.312] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/29/2016] [Accepted: 11/30/2016] [Indexed: 11/22/2022] Open
Abstract
Background Pulmonary arterial hypertension (PAH) is a major cause of morbidity and mortality among patients with systemic sclerosis (SSc). Early detection and prompt treatment of PAH associated with SSc (SSc-PAH) result in better prognosis. We conducted echocardiographic study to presume the prevalence of PAH in Korean adult SSc patients and to diagnose SSc-PAH in their early stages with right heart catheterization (RHC). Methods We performed free of charge echocardiographic study including 37 adult SSc patients at the Chungnam National University Hospital. The possibility of PAH is determined by the estimation of pulmonary arterial pressure by peak tricuspid regurgitation velocity of > 3.0 m/s. Patients with possible PAH were recommended to undergo RHC to confirm the diagnosis. Results In 37 patients, 8 patients were suspected with PAH. Among them, 6 patients agreed to be examined with RHC, and 4 were confirmed with PAH. The prevalence of possible PAH was 21.6% (8 of 37 patients), and that of confirmed PAH was 10.8% (4 of 37 patients). Four patients who were confirmed with SSc-PAH through RHC have been treated with specific pulmonary vasodilators and maintained stable. Conclusion Eight patients (21.6%) were possible PAH and 4 (10.8%) were diagnosed as SSc-PAH by RHC after the echocardiographic screening study of 37 adult SSc patients.
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Affiliation(s)
- Su-Jin Yoo
- Division of Rheumatology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
| | - Jae-Hyeong Park
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
| | - Yunseon Park
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
| | - Jae-Hwan Lee
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
| | - Byung-Joo Sun
- Division of Cardiology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
| | - Jinhyun Kim
- Division of Rheumatology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
| | - In Seol Yoo
- Division of Rheumatology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
| | - Seung Cheol Shim
- Division of Rheumatology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
| | - Seong Wook Kang
- Division of Rheumatology, Department of Internal Medicine, School of Medicine, Chungnam National University, Chungnam National University Hospital, Daejeon, Korea
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13
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Yoo IS, Lee SY, Park CK, Lee JC, Kim Y, Yoo SJ, Shim SC, Choi YS, Lee Y, Kang SW. Serum and synovial fluid concentrations of cold-inducible RNA-binding protein in patients with rheumatoid arthritis. Int J Rheum Dis 2016; 21:148-154. [DOI: 10.1111/1756-185x.12892] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- In Seol Yoo
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
| | - Sun Young Lee
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
| | - Chan Keol Park
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
| | - Jeong Chan Lee
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
| | - Young Kim
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
| | - Su Jin Yoo
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
| | - Seung Cheol Shim
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
| | - Yoon Seok Choi
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
| | - Young Lee
- Department of Dermatology; Chungnam National University School of Medicine; Daejeon Korea
| | - Seong Wook Kang
- Department of Internal Medicine; Chungnam National University School of Medicine; Daejeon Korea
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Yoon BR, Chung YH, Yoo SJ, Kawara K, Kim J, Yoo IS, Park CG, Kang SW, Lee WW. Preferential Induction of the T Cell Auxiliary Signaling Molecule B7-H3 on Synovial Monocytes in Rheumatoid Arthritis. J Biol Chem 2016; 291:4048-57. [PMID: 26702052 PMCID: PMC4759181 DOI: 10.1074/jbc.m115.680298] [Citation(s) in RCA: 16] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 11/24/2015] [Indexed: 12/29/2022] Open
Abstract
B7-H3, a newly identified B7 family member, has functional duality as a co-stimulator and co-inhibitor that fine-tunes T cell-mediated immune responses. Given that B7-H3 expression on human monocytes and dendritic cells is enhanced by inflammatory cytokines, its potential inmmunoregulatory role at sites of inflammation has been suggested. Further, monocytes play crucial roles in the pathophysiology of various inflammatory disorders including autoimmune diseases; however, the immunological role of B7-H3 in rheumatoid arthritis (RA) has not been defined. Thus, we aimed to investigate the possible roles of monocyte B7-H3 in the pathogenesis of RA. Synovial monocytes, but not peripheral monocytes, in RA patients predominantly express surface B7-H3. The 4Ig isoform of B7-H3 is exclusively induced on the cell surface, whereas the 2Ig B7-H3 isoform is constitutively expressed in the intracytoplasmic region of both peripheral and synovial monocytes. B7-H3 knockdown experiments reveal that surface B7-H3 has an inhibitory effect on IFN-γ production in CD4 memory cells. Moreover, surface B7-H3 expression on synovial monocytes inversely correlates with RA clinical parameters. Our findings demonstrate that activation-induced B7-H3 expression on synovial monocytes has the potential to inhibit Th1-mediated immune responses and immunomodulatory roles affecting RA pathogenesis.
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Affiliation(s)
- Bo Ruem Yoon
- From the Departments of Microbiology and Immunology and
| | - Yeon-Ho Chung
- From the Departments of Microbiology and Immunology and the BK21Plus Biomedical Science Project, and the Seoul National University College of Medicine, Seoul 110-799, South Korea
| | - Su-Jin Yoo
- the Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 301-721, South Korea
| | - Kenji Kawara
- From the Departments of Microbiology and Immunology and the Tokyo Medical and Dental University School of Medicine, Tokyo 113-8510, Japan, and
| | - Jinhyun Kim
- the Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 301-721, South Korea
| | - In Seol Yoo
- the Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 301-721, South Korea
| | - Chung-Gyu Park
- From the Departments of Microbiology and Immunology and Biomedical Sciences and
| | - Seong Wook Kang
- the Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 301-721, South Korea,
| | - Won-Woo Lee
- From the Departments of Microbiology and Immunology and the BK21Plus Biomedical Science Project, and the Seoul National University College of Medicine, Seoul 110-799, South Korea, Biomedical Sciences and the Cancer Research Institute, Ischemic/Hypoxic Disease Institute, and Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul National University Hospital Biomedical Research Institute, Seoul 110-799, South Korea
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15
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Yoo SJ, Lee JC, Kim Y, Yoo IS, Shim SC, Kim KH, Kang SW. Clinical Implication of 18F-FDG-PET in Diagnosing and Monitoring Disease Activity in a Case of Subclinical Stage of Giant Cell Arteritis. J Rheum Dis 2015. [DOI: 10.4078/jrd.2015.22.6.382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Su-Jin Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jeong Chan Lee
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - In Seol Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seung Cheol Shim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Kun-Ho Kim
- Department of Nuclear Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
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16
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Yoon BR, Yoo SJ, Choi YH, Chung YH, Kim J, Yoo IS, Kang SW, Lee WW. Functional phenotype of synovial monocytes modulating inflammatory T-cell responses in rheumatoid arthritis (RA). PLoS One 2014; 9:e109775. [PMID: 25329467 PMCID: PMC4201467 DOI: 10.1371/journal.pone.0109775] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 09/11/2014] [Indexed: 12/29/2022] Open
Abstract
Monocytes function as crucial innate effectors in the pathogenesis of chronic inflammatory diseases, including autoimmunity, as well as in the inflammatory response against infectious pathogens. Human monocytes are heterogeneous and can be classified into three distinct subsets based on CD14 and CD16 expression. Although accumulating evidence suggests distinct functions of monocyte subsets in inflammatory conditions, their pathogenic roles in autoimmune diseases remain unclear. Thus, we investigated the phenotypic and functional characteristics of monocytes derived from synovial fluid and peripheral blood in RA patients in order to explore the pathogenic roles of these cells. In RA patients, CD14+CD16+, but not CD14dimCD16+, monocytes are predominantly expanded in synovial fluid and, to a lesser degree, in peripheral blood. Expression of co-signaling molecules of the B7 family, specifically CD80 and CD276, was markedly elevated on synovial monocytes, while peripheral monocytes of RA and healthy controls did not express these molecules without stimulation. To explore how synovial monocytes might gain these unique properties in the inflammatory milieu of the synovial fluid, peripheral monocytes were exposed to various stimuli. CD16 expression on CD14+ monocytes was clearly induced by TGF-β, although co-treatment with IL-1β, TNF-α, or IL-6 did not result in any additive effects. In contrast, TLR stimulation with LPS or zymosan significantly downregulated CD16 expression such that the CD14+CD16+ monocyte subset could not be identified. Furthermore, treatment of monocytes with IFN-γ resulted in the induction of CD80 and HLA-DR expression even in the presence of TGF-β. An in vitro assay clearly showed that synovial monocytes possess the unique capability to promote Th1 as well as Th17 responses of autologous peripheral CD4 memory T cells. Our findings suggest that the cytokine milieu of the synovial fluid shapes the unique features of synovial monocytes as well as their cardinal role in shaping inflammatory T-cell responses in RA.
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Affiliation(s)
- Bo Ruem Yoon
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
| | - Su-Jin Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejon, Korea
| | - Yeon ho Choi
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Yeon-Ho Chung
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
| | - Jinhyun Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejon, Korea
| | - In Seol Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejon, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejon, Korea
- * E-mail: (WWL); (SWK)
| | - Won-Woo Lee
- Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
- Ischemic/Hypoxic Disease Institute, and Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul, Korea
- * E-mail: (WWL); (SWK)
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Abstract
PURPOSE The function of regulatory B lymphocytes is known to be abnormal in inflammatory diseases. However, a recent study indicates that IL-10+ B cells seem to be expanded in rheumatoid arthritis (RA). Therefore, the state of IL-10+ B cells in the peripheral blood from RA patients and healthy controls were investigated. MATERIALS AND METHODS CD19+ cells in peripheral blood mononuclear cells were purified from blood samples of RA patients and age and gender-matched healthy controls, and stimulated with CD40 ligand and CpG for 48 hours. Then, intracellular IL-10 in CD19+ cells was analyzed using flow cytometry. RESULTS There was no significant difference in the proportion of IL-10+ B cells between 10 RA patients and 10 healthy controls (RA, 0.300±0.07 vs. healthy control 0.459±0.07, p=0.114). The proportion of induced IL-10+ B cells to total B cells in RA patients was significantly higher than those in controls (RA, 4.44±3.44% vs. healthy control 2.44±1.64%, p=0.033). However, the proportion of IL-10+ B cells to total B cells correlated negatively with disease activity in RA patients (r=-0.398, p=0.040). Erythrocyte sedimentation rate or C-reactive protein or medication was not associated with the proportion of IL-10+ B cells. CONCLUSION The proportion of induced IL-10+ B cell increased in RA patients compared to healthy control, however, negatively correlated with disease activity in RA.
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Affiliation(s)
- Jinhyun Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Hyun Ji Lee
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - In Seol Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jae Ho Lee
- Department of Paediatrics, Chungnam National University School of Medicine, Daejeon, Korea.
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18
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Song ST, Kim Y, Park CK, Yoo SJ, Kim JH, Kang SW, Yoo IS. Localized Mesenteric Vasculitis in a Patient with Polymyalgia Rheumatica. J Rheum Dis 2014. [DOI: 10.4078/jrd.2014.21.5.253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Seung Taek Song
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Chan Keol Park
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Su Jin Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jin Hyun Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - In Seol Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
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19
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Affiliation(s)
- In Seol Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Chan-Keol Park
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seung Taek Song
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Si Wan Choi
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jin Hyun Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
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20
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Song ST, Yoo IS, Kim Y, Park CK, Yun HJ, Kang SW, Kim J. A Case of Hypertrophic Osteoarthropathy Associated with Lung Metastasis of Parotid Gland Mucoepidermoid Carcinoma. J Rheum Dis 2014. [DOI: 10.4078/jrd.2014.21.5.248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Seung Taek Song
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - In Seol Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Chan Keol Park
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Hwan-Jung Yun
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jinhyun Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
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Abstract
AIM There is growing evidence that two recently recognized, unique subsets of CD4(+) T-cells, T-helper 17 cells (Th17) and CD4(+) CD25(+) regulatory T-cells (Treg), may play important roles in the pathogenesis of psoriasis. This study sought to investigate the relationship between Th17 cells and psoriasis or psoriatic arthritis (PsA). METHODS Peripheral blood CD4(+) T-cells were isolated from 47 patients with psoriasis and 47 controls, and were cultured under various stimulatory conditions. The Th17 cells and regulatory Treg cells were detected by flow cytometry. Plasma interleukin (IL)-17 was measured by enzyme-linked immunosorbent assay. RESULTS The proportion of Th17 and Treg cells from peripheral blood mononuclear cells showed no difference between patients with psoriasis and controls. However, psoriasis and PsA patients demonstrated a higher proportion of induced Th17 cells, which was correlated with psoriasis area severity index score. The level of plasma IL-17A in psoriasis was higher than that in controls. CONCLUSION Th17 cells may play important roles in the pathogenesis of psoriasis and psoriatic arthritis.
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Affiliation(s)
- In Seol Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
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22
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Kim SH, Yoo IS, Kim JH, Yoon HH. Fabrication and characterization of solid oxide fuel cell electrolyte films by electron beam vapor deposition. J Nanosci Nanotechnol 2011; 11:4615-4619. [PMID: 21780508 DOI: 10.1166/jnn.2011.3682] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Thin films of SDC for SOFC electrolyte were prepared using electron beam deposition technique. The influence of annealing temperature, substrate temperature and e-beam gun power on the structure and surface morphology of the thin films was examined. It was found that the SDC thin films annealed at 800 degrees C consisted of a single cubic phase and the main crystal structure of the thin films represented those of evaporated electrolyte powders. The crystal orientation of the SDC films increased with substrate temperature and decreased with e-beam gun power. The higher XRD peak intensity was observed for the SDC films deposited on NiO-YSZ substrate compared with those on SiO2 substrate due to the polycrystalline structure of the NiO-YSZ substrate. A good adhesion to the substrate and a columnar structure were observed by the fractured cross-sectional view of the SDC films on NiO-YSZ anode substrate. Electrical conductivity of SDC film with 5 microm thickness was observed to be 2.31 x 10(-3) Sm(-1) at 800 degrees C.
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Affiliation(s)
- S H Kim
- Department of Chemical Engineering, Kyungwon University, Seongnam, Gyeonggi-Do 461-701, S. Korea
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23
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Affiliation(s)
- In Seol Yoo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Min Kyung Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seung Tak Song
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jin Hyun Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jin Man Kim
- Department of Pathology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Deog Yeon Jo
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea
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Chung SP, Chung HS, Ryu S, Rhu S, Kim SW, Yoo IS, Kim J, Song CJ. Emergency department experience of primary diffusion weighted magnetic resonance imaging for the patient with lacunar syndrome. Emerg Med J 2007; 23:675-8. [PMID: 16921077 PMCID: PMC2564205 DOI: 10.1136/emj.2006.035402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The purpose of this study was to evaluate the usefulness of a particular magnetic resonance imaging technique known as primary diffusion weighted imaging (DWI) for patients with lacunar syndrome in the emergency department (ED). METHODS Patients with one of five classic lacunar syndromes underwent DWI as primary imaging modality. The DWI findings were classified into groups: (a) having a lesion with high signal intensity, (b) having a lesion with mixed signal intensity, and (c) unremarkable. The final clinical diagnoses were extracted from the patients' medical records, and used as a reference standard. RESULTS Of 151 DWI images, 120 (79%) were interpreted as high signal lesions, 21 (14%) as mixed signal lesions, and 10 (7%) as unremarkable. All patients with high signal lesions or unremarkable findings were diagnosed with ischaemic stroke. The patients with mixed signal lesions were diagnosed with haemorrhagic stroke with an exception of one ischaemic stroke. CONCLUSION Primary DWI is a feasible and useful neuroimaging tool for patients with lacunar syndrome in the ED.
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Affiliation(s)
- S P Chung
- Department of Emergency Medicine, Yongdong Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea Seoul, Republic of Korea.
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Kwon OY, Chung SP, Yoo IS, Song CJ, Kim IB, Kim SW. Delayed presentation of internal mammary artery rupture after blunt chest trauma: characteristic CT and plain x ray findings. Emerg Med J 2005; 22:664-5. [PMID: 16113196 PMCID: PMC1726917 DOI: 10.1136/emj.2003.013607] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- O Y Kwon
- Department of Anatomy, College of Medicine, Chungnam National University, Daejeon, Republic of Korea [corrected]
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Abstract
Delayed postanoxic encephalopathy causes deterioration and relapse of cognitive ability and behavioural movement a few weeks after complete recovery from initial hypoxic injury. A case is reported of delayed postanoxic encephalopathy after carbon monoxide poisoning, which was diagnosed with diffusion weighted magnetic resonance imaging. The literature is also reviewed.
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Affiliation(s)
- O Y Kwon
- Department of Anatomy, College of Medicine, Chungnam National University, Daejeon, Republic of Korea
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Abstract
The expression of the ischemia-responsive protein (irp94) was enhanced by endoplasmic reticulum (ER) stress inducing drugs such as brefeldin A (BFA), calcium ionophor A23187, dithiothreitol (DTT) and tunicamycin in fisher rat thyroid epithelial cell line (FRTL-5 cells). In particular, irp94 mRNA expression was increased dose dependently by tunicamycin, and there was increased irp94 expression when the cells were incubated with the thyroid-stimulating hormone (TSH) together.
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Affiliation(s)
- S W Kim
- Department of Emergency Medicine, Chungnam National University Hospital, Taejon, Korea
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28
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Abstract
Pseudoaneurysm arising from the superficial temporal artery (STA) is very rare and is most commonly caused by blunt trauma. Most pseudoaneurysms of the STA usually present as a painless pulsating mass, with concomitant symptoms according to location, and their size may rapidly increase. The treatment of choice is ligation and resection. We present a case of pseudoaneurysm arising from STA after a penetrating injury caused by broken glass. We describe the history, findings of physical examination, Doppler sonography, angiography, histopathology, and the outcome of treatment. We also include a brief review of this condition.
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Affiliation(s)
- M J Choo
- Department of Otolaryngology, Chungbuk National University, Cheongju, Korea
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