1
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Lee GY, Shin GW, Park HY, Yoon HK, Kim TH, Lee A, Heo YJ, Lee YJ, Han JY, Park YM. Sonographic Features of Breast Fibroepithelial Masses: Distinguishing Fibroadenoma from Phyllodes Tumour. Hong Kong Journal of Radiology 2022. [DOI: 10.12809/hkjr2217333] [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: 11/05/2022] Open
Affiliation(s)
- GY Lee
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - GW Shin
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - HY Park
- Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - HK Yoon
- Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - TH Kim
- Department of Surgery, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - A Lee
- Department of Surgery, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - YJ Heo
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - YJ Lee
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - JY Han
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
| | - YM Park
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, South Korea
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Jeong BS, Nam H, Lee J, Park HY, Cho KJ, Sheen JH, Song E, Oh M, Lee S, Choi H, Yang JE, Kim M, Oh BH. Structural and functional characterization of a monoclonal antibody blocking TIGIT. MAbs 2022; 14:2013750. [PMID: 35090381 PMCID: PMC8803117 DOI: 10.1080/19420862.2021.2013750] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
TIGIT is an immune checkpoint receptor that is expressed on subsets of activated T cells and natural killer (NK) cells. Several ligands for TIGIT, including poliovirus receptor (PVR), are expressed on cancer cells and mediate inhibitory signaling to suppress antitumor activities of the immune cells. Many studies support that the TIGIT signaling is a potential target for cancer immunotherapy. We developed an IgG4-type monoclonal antibody against human TIGIT, designated as MG1131, using a phage display library of single-chain variable fragments (scFvs). MG1131 interacts with TIGIT much more tightly than PVR does. The crystal structure of a scFv version of MG1131 bound to TIGIT was determined, showing that MG1131 could block the PVR-TIGIT interaction and thus the immunosuppressive signaling of TIGIT. Consistently, MG1131 is bound to TIGIT-expressing cells and interferes with PVR binding to these cells. Moreover, MG1131 increased NK cell-mediated tumor killing activities, inhibited immunosuppressive activity of regulatory T (Treg) cells from healthy donors, and restored interferon-γ secretion from peripheral blood mononuclear cells derived from multiple myeloma patients. MG1131 also increased T cell infiltration to the tumor site and inhibited tumor growth in mice. Collectively, these data indicate that MG1131 modulates the effector functions of T cells and NK cells positively and Treg cells negatively.
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Affiliation(s)
- Bo-Seong Jeong
- Department of Biological Sciences, Kaist Institute for the Biocentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Hyemi Nam
- Department of Target ID & Assay Development, Mogam Institute for Biomedical Research, Gyeonggi-do, Republic of Korea
| | - Jeewon Lee
- Department of Target ID & Assay Development, Mogam Institute for Biomedical Research, Gyeonggi-do, Republic of Korea
| | - Hye-Young Park
- Department of Target ID & Assay Development, Mogam Institute for Biomedical Research, Gyeonggi-do, Republic of Korea
| | - Ki Joon Cho
- Department of Target ID & Assay Development, Mogam Institute for Biomedical Research, Gyeonggi-do, Republic of Korea
| | - Joong Hyuk Sheen
- Department of Target ID & Assay Development, Mogam Institute for Biomedical Research, Gyeonggi-do, Republic of Korea
| | - Eunjung Song
- Department of Protein Engineering, Mogam Institute for Biomedical Research, Gyeonggi-do, Republic of Korea
| | - Meesook Oh
- Department of Research and Early Development, Gc Pharma, Gyeonggi-do, Republic of Korea
| | - Sunggeun Lee
- Department of Research and Early Development, Gc Pharma, Gyeonggi-do, Republic of Korea
| | - Hyemin Choi
- Department of Research and Early Development, Gc Pharma, Gyeonggi-do, Republic of Korea
| | - Jung-Eun Yang
- Department of Research and Early Development, Gc Pharma, Gyeonggi-do, Republic of Korea
| | - Munkyung Kim
- Department of Target ID & Assay Development, Mogam Institute for Biomedical Research, Gyeonggi-do, Republic of Korea
| | - Byung-Ha Oh
- Department of Biological Sciences, Kaist Institute for the Biocentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
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Ahn JW, Jang SK, Jo BR, Kim HS, Park JY, Park HY, Yoo YM, Joo SS. A therapeutic intervention for Alzheimer's disease using ginsenoside Rg3: its role in M2 microglial activation and non-amyloidogenesis. J Physiol Pharmacol 2021; 72. [PMID: 34374655 DOI: 10.26402/jpp.2021.2.04] [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] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/30/2021] [Indexed: 11/03/2022]
Abstract
Previously, we have reported that ginsenoside Rg3 has typical activities for neuroprotection and Aβ42 clearance by modulating microglia. In this study, we determined the pivotal role of ginsenoside Rg3 in microglia and neuronal cells. In human microglia, Rg3 and its stereoisomers significantly restored inflammatory M1 to normal M0 state and promoted M2 activation by up-regulating acute cytokines such as interleukin-10 and Arginase 1. Moreover, scavenger receptor type A (SRA) was significantly elevated in the presence of ginsenoside Rg3 and 20(S)-Rg3. This indicated that ginsenoside Rg3 could play a crucial role in Aβ uptake and clearance under activated M2 state. We also observed that soluble amyloid precursor protein-alpha (sAPPα) and ADAM10 levels were increased in APP swe-transfected Nuro-2a neuronal cells, whereas sAPPβ was not processed, suggesting that ginsenoside Rg3 was involved in non-amyloidogenic processing. In immunocytochemistry, SRA and a disintegrin and metalloproteinase 10 (desintegrin and metalloproteinase-containing protein 10, ADAM10) were coincidently upregulated in the presence of ginsenoside Rg3 and its stereoisomers compared to those in normal control. Taken together, these results suggested that ginsenoside Rg3 could boost acute activation of microglia, promote Aβ uptake, and elevate the sAPPα processing under activated M2 state. Although in vivo studies need to be performed, it is certain that ginsenoside Rg3 is highly involved in ameliorating the pathogenesis of neurodegeneration and can be a promising candidate for treating Alzheimer's disease as a new therapeutic intervention.
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Affiliation(s)
- J W Ahn
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon, Republic of Korea
| | - S K Jang
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon, Republic of Korea.,Huscion MAJIC R&D Center, Seongnam, Gyeonggi, Republic of Korea
| | - B R Jo
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon, Republic of Korea
| | - H S Kim
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon, Republic of Korea
| | - J Y Park
- Department of Chemical Engineering, Fergana Korea International University, Fergana, Uzbekistan
| | - H Y Park
- College of Pharmacy, Chung-Ang University, Dongjak-gu, Seoul, Republic of Korea
| | - Y-M Yoo
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon, Republic of Korea
| | - S S Joo
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon, Republic of Korea. .,Huscion MAJIC R&D Center, Seongnam, Gyeonggi, Republic of Korea
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Pei CZ, Park HB, Choi HS, Choi B, Park HY, Jung HY, Baek KH. P–370 RPL-protease A as a potential biomarker for predicting recurrent pregnancy loss. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.369] [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: 11/13/2022] Open
Abstract
Abstract
Study question
Could the reduction of RPL-protease A be involved in the dysfunctional trophoblast for resulting in recurrent pregnancy loss (RPL).
Summary answer
Low expression of RPL-protease A may result in RPL and low serum RPL-protease A level may be a potential biomarker for predicting RPL.
What is known already
The RPL-protease A is expressed and secreted by placenta. The RPL-protease A is involved in the pathogenesis of pre-eclampsia, and the serum RPL-protease A level is higher in the patients with pre-eclampsia than that of normal groups. In our previous study, we identified that the RPL-protease A mRNA level was lower in the villi of patients with RPL than that of normal groups.
Study design, size, duration
Using the CRISPR/Cas9 system, the RPL-protease A gene knockout BeWo cell (BeWo KO) line was established, and the wild type (BeWo WT) and BeWo KO cells were applied to investigate the roles of RPL-protease A in trophoblasts. The human serum RPL-protease A levels were investigated by Western blot analysis and ELISA kit.
Participants/materials, setting, methods
The cell-cell fusion, cell counting analysis, invasion and scratch wound assays, cell cycle analysis, and immunocytochemical analysis were used to investigate cellular functions of RPL-protease A in trophoblast. The sera were obtained from 32 normal pregnant women and 60 women with RPL. The Western blot analysis and ELISA were used for detection of serum RPL-protease A levels.
Main results and the role of chance
The β-hCG was detected in fused BeWo WT cells, while the BeWo KO cells cannot fuse and did not express the β-hCG. The ability of invasion was decreased, but the capacity of migration and proliferation was higher in BeWo KO cells than BeWo WT cells. Cell fusion related factor (β-hCG), and cell invasion related factors (MMP–2 and MMP–9) were highly expressed in BeWo WT cells, and cell related factor (FAK), and cell proliferation related factors (ERK, p38, JNK, MKK3, MKK6, Raf, and Ras) were highly expressed in BeWo KO cells. The Western blot analysis and ELISA indicate that the serum RPL-protease A level was decreased in patients with RPL compared to that of normal groups.
Limitations, reasons for caution
The results of this study have the limitation of RPL-protease A functions in vitro.
Wider implications of the findings: The cellular functions of RPL-protease A in trophoblasts were investigated to explain the pathogenesis of RPL, and low serum RPL-protease A level can be used for a potential biomarker predicting RPL.
Trial registration number
Not applicable
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Affiliation(s)
- C Z Pei
- CHA University, Department of Biomedical Science, Seongnam-Si Gyeonggi-Do, Korea- South
| | - H B Park
- CHA University, Department of Biomedical Science, Seongnam-Si Gyeonggi-Do, Korea- South
| | - H S Choi
- CHA University, Department of Biomedical Science, Seongnam-Si Gyeonggi-Do, Korea- South
| | - B Choi
- Creation and Love Women’s Hospital, Department of Obstetrics and Gynecology, Gwangju, Korea- South
| | - H Y Park
- Creation and Love Women’s Hospital, Department of Obstetrics and Gynecology, Gwangju, Korea- South
| | - H Y Jung
- Creation and Love Women’s Hospital, Department of Obstetrics and Gynecology, Gwangju, Korea- South
| | - K H Baek
- CHA University, Department of Biomedical Science, Seongnam-Si Gyeonggi-Do, Korea- South
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Lee GY, Shin GW, Park HY, Yoon HK, Kim TH, Lee A, Heo YJ, Lee YJ, Han JY, Park YM. Predictive sonographic features for differentiation of breast fibroepithelial
tumors: fibroadenoma versus phyllodes tumor. Hong Kong Journal of Radiology 2021. [DOI: 10.12809/hkjr2117333] [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: 11/05/2022] Open
Affiliation(s)
- GY Lee
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - GW Shin
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - HY Park
- Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - HK Yoon
- Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - TH Kim
- Department of Surgery, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - A Lee
- Department of Surgery, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - YJ Heo
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - YJ Lee
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - JY Han
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - YM Park
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
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Park HY, Park CR, Suh CH, Kim MJ, Shim WH, Kim SJ. Prognostic Utility of Disproportionately Enlarged Subarachnoid Space Hydrocephalus in Idiopathic Normal Pressure Hydrocephalus Treated with Ventriculoperitoneal Shunt Surgery: A Systematic Review and Meta-analysis. AJNR Am J Neuroradiol 2021; 42:1429-1436. [PMID: 34045302 DOI: 10.3174/ajnr.a7168] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/17/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Disproportionately enlarged subarachnoid space hydrocephalus is a specific radiologic marker for idiopathic normal pressure hydrocephalus. However, controversy exists regarding the prognostic utility of disproportionately enlarged subarachnoid space hydrocephalus. PURPOSE Our aim was to evaluate the prevalence of disproportionately enlarged subarachnoid space hydrocephalus in idiopathic normal pressure hydrocephalus and its predictive utility regarding prognosis in patients treated with ventriculoperitoneal shunt surgery. DATA SOURCES We used MEDLINE and EMBASE databases. STUDY SELECTION We searched for studies that reported the prevalence or the diagnostic performance of disproportionately enlarged subarachnoid space hydrocephalus in predicting treatment response. DATA ANALYSIS The pooled prevalence of disproportionately enlarged subarachnoid space hydrocephalus was obtained. Pooled sensitivity, specificity, and area under the curve of disproportionately enlarged subarachnoid space hydrocephalus to predict treatment response were obtained. Subgroup and sensitivity analyses were performed to explain heterogeneity among the studies. DATA SYNTHESIS Ten articles with 812 patients were included. The pooled prevalence of disproportionately enlarged subarachnoid space hydrocephalus in idiopathic normal pressure hydrocephalus was 44% (95% CI, 34%-54%). The pooled prevalence of disproportionately enlarged subarachnoid space hydrocephalus was higher in the studies using the second edition of the Japanese Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus compared with the studies using the international guidelines without statistical significance (52% versus 43%, P = .38). The pooled sensitivity and specificity of disproportionately enlarged subarachnoid space hydrocephalus for prediction of treatment response were 59% (95% CI, 38%-77%) and 66% (95% CI, 57%-74%), respectively, with an area under the curve of 0.67 (95% CI, 0.63-0.71). LIMITATIONS The lack of an established method for assessing disproportionately enlarged subarachnoid space hydrocephalus using brain MR imaging served as an important cause of the heterogeneity. CONCLUSIONS Our meta-analysis demonstrated a relatively low prevalence of disproportionately enlarged subarachnoid space hydrocephalus in idiopathic normal pressure hydrocephalus and a poor diagnostic performance for treatment response.
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Affiliation(s)
- H Y Park
- From the Department of Radiology and Research Institute of Radiology (H.Y.P., C.H.S., M.J.K., W.H.S., S.J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - C R Park
- Department of Medical Science (C.R.P.) Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, Korea
| | - C H Suh
- From the Department of Radiology and Research Institute of Radiology (H.Y.P., C.H.S., M.J.K., W.H.S., S.J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - M J Kim
- From the Department of Radiology and Research Institute of Radiology (H.Y.P., C.H.S., M.J.K., W.H.S., S.J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - W H Shim
- From the Department of Radiology and Research Institute of Radiology (H.Y.P., C.H.S., M.J.K., W.H.S., S.J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S J Kim
- From the Department of Radiology and Research Institute of Radiology (H.Y.P., C.H.S., M.J.K., W.H.S., S.J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Lee J, Kim M, Nam HM, Sheen JH, Song EJ, Yum HI, Lim SJ, Park HY. Abstract 2230: MG1131, a novel TIGIT-targeting monoclonal antibody, enhances anti-tumor immune responses by modulating NK and T cell activity. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-2230] [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: 11/16/2022]
Abstract
Abstract
As the recent rise of immune checkpoint inhibitors has resulted in durable clinical outcomes in cancer patients, the need for a newer and more widely effective target for immunotherapy has been vigorously sought in the field; T cell immunoreceptor with Ig and ITIM domain (TIGIT) is an immune checkpoint molecule expressed on CD8+ T cells, CD4+ T cells, NK cells, and regulatory T cells (Treg). TIGIT induces exhaustion of effector T cells (Teff) and NK cells in the tumor microenvironment via engagement with its ligand PVR (CD155) which is dominantly expressed on malignant tumor cells. After initial screening processes from a synthetic library, MG1131 clone was chosen based on the strongest binding affinity to human TIGIT and the superior PVR-blocking activity. MG1131 was cross-reactive with the cynomolgus monkey TIGIT, but not with the mouse TIGIT. Our in vitro efficacy data demonstrated that MG1131 activated NF-κB signaling in T cells, and enhanced NK-mediated tumor killing activities in a PVR-dependent manner. In vitro Treg suppression assays showed that MG1131 inhibited immunosuppressive functionality of Treg, leading to restoration of proliferation and IFN-γ secretion capacities of Teff even in the presence of Treg. In addition, expression levels of TIGIT on CD8+ T cells from PBMCs of cancer patient samples were higher compared with other immune inhibitory molecules such as PD-1, Tim-3, CTLA-4, or LAG-3, and the blockade of TIGIT by MG1131 resulted in increased IFN-γ secretion. Thus, our data indicate that MG1131 is a promising candidate for cancer immunotherapy by modulating NK and T cell functions.
Citation Format: Jeewon Lee, Munkyung Kim, Hye-mi Nam, Joong Hyuk Sheen, Eun Jung Song, Hye In Yum, So Jung Lim, Hye-Young Park. MG1131, a novel TIGIT-targeting monoclonal antibody, enhances anti-tumor immune responses by modulating NK and T cell activity [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 2230.
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Affiliation(s)
- Jeewon Lee
- MOGAM Institute for Biomedical Research, Yong-in, Republic of Korea
| | - Munkyung Kim
- MOGAM Institute for Biomedical Research, Yong-in, Republic of Korea
| | - Hye-mi Nam
- MOGAM Institute for Biomedical Research, Yong-in, Republic of Korea
| | - Joong Hyuk Sheen
- MOGAM Institute for Biomedical Research, Yong-in, Republic of Korea
| | - Eun Jung Song
- MOGAM Institute for Biomedical Research, Yong-in, Republic of Korea
| | - Hye In Yum
- MOGAM Institute for Biomedical Research, Yong-in, Republic of Korea
| | - So Jung Lim
- MOGAM Institute for Biomedical Research, Yong-in, Republic of Korea
| | - Hye-Young Park
- MOGAM Institute for Biomedical Research, Yong-in, Republic of Korea
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Park HY, Lee MK, Kim HJ. Study of the Practical Application of Problem-Based Learning to a Major Class of Dental Hygienics: Focused on the Clinical Dental Hygienics Subject. J Probl Based Learn 2020. [DOI: 10.24313/jpbl.2020.00255] [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: 11/12/2022] Open
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Kim K, Kim HR, Kang MG, Park HY, Koh JS, Hwang SJ, Hwang JY, Park JR. P1416 Clinical importance of consecutive transthoracic echocardiography in the patients with hypertrophic cardiomyopathy. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.848] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
nothing
OnBehalf
nothing
Background
prediction of outcomes Hypertrophic cardiomyopathy (HCM) have been robustly analyzed with echocardiography. However, there is limited data of serial follow-up (FU) transthoracic echocardiography (TTE) to predict outcomes in patients with HCM.
Objectives
This study aim is to discover clinical predictors associated with consecutive TTE follow-up in patients with HCM.
Methods
From 2010 to 2016, 162 patients with HCM were enrolled retrospectively. Concentric LVH and others systolic disease related to wall thickness were excluded. Index TTE (baseline) was measured when firstly admitted in our hospital. FU TTE was analyzed at the end of follow-up, defined as the last recorded value in patients who did not develop events or the last recorded value before events developed.
Results
The average of FU TTE and clinical FU period was 3.7 ± 2.0 years. Clinical outcomes were defined as stroke, syncope, heart failure, arrhythmia and death. Interestingly, only baseline TR V max was a predictor for clinical outcome whereas the others echo parameters were not associated with events (Table 1). KM curve showed the TR Vmax ≥2.5m/s was also significant (log rank = 0.008, Fig 1.)
Conclusions Our study showed short-term FU TTE did not bring clinician with clinical benefits in the aspect of prediction for events. Only baseline TR V max was good correlation with cardiovascular outcomes and even in the survival analysis.
Serial TTE and changed values Total N = 162 index TTE (baseline) FU TTE Change of FU per year event no event p-value event no event p-value event no event p-value IVDd, mm 14 ± 4 15 ± 5 0.500 15 ± 5 14 ± 5 0.758 0.23 ± 0.51 -0.07 ± 1.27 0.200 LVIDd, mm 47 ± 5 48 ± 6 0.256 47 ± 7 48 ± 6 0.560 -0.22 ± 2.79 0.10 ± 2.27 0.444 LVEF, % 62 ± 5 61 ± 7 0.379 61 ± 6 61 ± 10 0.927 -0.43 ± 3.10 -0.04 ± 4.94 0.620 LAVI 43 ± 9 43 ± 8 0.879 57 ± 27 58 ± 23 0.849 0.53 ± 14.5 3.11 ± 7.2 0.134 EA ratio 0.9 ± 0.6 0.9 ± 0.6 0.782 1.0 ± 0.8 0.9 ± 0.6 0.595 -0.02 ± 0.76 0.003 ± 0.027 0.594 DT,ms 196 ± 58 201 ± 62 0.603 203 ± 91 217 ± 89 0.370 17 ± 57 5 ± 40 0.154 septal e` 4.4 ± 2.1 4.2 ± 1.6 0.585 4.4 ± 1.6 4.6 ± 1.7 0.438 0.24 ± 0.91 0.05 ± 0.65 0.190 E of e` 17 ± 11 17 ± 23 0.993 15 ± 9 15 ± 6 0.726 -0.48 ± 4.42 -1.66 ± 22.78 0.728 TR velocity 2.6 ± 0.5 2.4 ± 0.4 0.012 2.7 ± 0.6 2.6 ± 0.4 0.604 0.05 ± 0.30 0.04 ± 0.18 0.905 Max wall thickness 17 ± 3 18 ± 3 0.137 17 ± 4 17 ± 3 0.888 -0.01 ± 2.19 -0.18 ± 1.14 0.522
Abstract P1416 Figure. TR Vmax and CV outcomes in the KM curve
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Affiliation(s)
- K Kim
- Gyeongsang National University Hospital, Cardiology, Jinju, Korea (Republic of)
| | - H R Kim
- Gyeongsang National University Hospital, Cardiology, Jinju, Korea (Republic of)
| | - M G Kang
- Gyeongsang National University Hospital, Cardiology, Jinju, Korea (Republic of)
| | - H Y Park
- Gyeongsang National University Hospital, Cardiology, Jinju, Korea (Republic of)
| | - J S Koh
- Gyeongsang National University Hospital, Cardiology, Jinju, Korea (Republic of)
| | - S J Hwang
- Gyeongsang National University Hospital, Cardiology, Jinju, Korea (Republic of)
| | - J Y Hwang
- Gyeongsang National University Hospital, Cardiology, Jinju, Korea (Republic of)
| | - J R Park
- Gyeongsang National University Hospital, Cardiology, Jinju, Korea (Republic of)
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Lee JC, Hur M, Park HY, Lee E, Yum HI, Nam HM, Oh MY, Choi H, Kim JH, Cho BC, Lim YM, Won J. Preclinical characterization and efficacy of 4R9, a novel immune checkpoint blockade targeting CEACAM1 for cancer therapy. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e14155] [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: 11/20/2022] Open
Abstract
e14155 Background: CEACAM1 is one of the several immune checkpoint receptors expressed on T cells that mediate suppression of inflammatory T cell response. It is known that CEACAM1-CEACAM1 homophilic interaction induces downregulation of ZAP70 phosphorylation in response to T cell receptor (TCR) stimulation. Also, CEACAM1 is highly expressed on non-small cell lung cancer (NSCLC) and its expression correlated with cancer progression and poor prognosis. We developed a fully human monoclonal antibody 4R9, human CEACAM1-targeting antibody. Methods: T cell activation of 4R9 was determined by NFAT-luciferase reporter assay with CEACAM1 overexpressing Jurkat stable cells. In vitro efficacy of 4R9 was examined using NK-mediated tumor cell killing assay. The anti-tumor efficacy of 4R9 alone or in combination was studied in vivo in a humanized mouse model engrafted with NSCLC patient-derived tumor xenografts. Results: Anti-CEACAM1 antibody 4R9 binds to CEACAM1 overexpressed in HEK293 or Jurkat cells but not to other CEA family members. 4R9 blocks CEACAM1-CEACAM1 homophilic interaction by binding to N domain of CEACAM1. CEACAM1-CEACAM1 homophilic interaction induced downregulation of ZAP70 phosphorylation in response to TCR stimulation in CEACAM1 overexpressing Jurkat stable cell line, which was rescued by 4R9 resulting in augmentation of NFAT activity and IL-2 expression. NK cell-mediated tumor lysis was increased by 4R9 in a CEACAM1 expression-dependent manner. Out of 49 NSCLC tumor tissues, 20 cases exhibited dominant expression of CEACAM1 over PD-L1 with 6 cases showing > 50% of CEACAM1 positivity. In a single mouse trial using NSCLC PDX-huNSG mouse model, 4R9 (20 mpk, 2qW) suppressed tumor progression more than 30% as monotherapy (10/19) as well as in combination (16/22) with pembrolizumab (5 mpk, 2qW). Moreover, PDX of adenocarcinoma origin with more than 50% of CEACAM1 expression were more efficiently prohibited for progression with 4R9, suggesting potential therapeutic use of 4R9 in patients with NSCLC. Conclusions: Anti-CEACAM1 antibody blocked CEACAM1-mediated negative regulation and restored T/NK cell activities. Different expression patterns of CEACAM1 compared with PD-L1 and efficacies in a single mouse trial support the rationale for developing anti-CEAEAM1 antibody as cancer therapeutics.
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Affiliation(s)
- Jae-Chul Lee
- MOGAM Institute for Biomedical Research, Yongin, South Korea
| | - Minkyu Hur
- MOGAM Institute for Biomedical Research, Yongin, South Korea
| | - Hye-Young Park
- MOGAM Institute for Biomedical Research, Yongin, South Korea
| | - EunHee Lee
- MOGAM Institute for Biomedical Research, Yongin, South Korea
| | - Hye In Yum
- MOGAM Institute for Biomedical Research, Yongin, South Korea
| | - Hye-mi Nam
- MOGAM Institute for Biomedical Research, Yongin, South Korea
| | - Mi-Young Oh
- MOGAM Institute for Biomedical Research, Yongin, South Korea
| | | | - Jae-Hwan Kim
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Byoung Chul Cho
- Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Yang-Mi Lim
- MOGAM Institute for Biomedical Research, Yongin, South Korea
| | - Jonghwa Won
- MOGAM Institute for Biomedical Research, Yongin, South Korea
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11
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Eun SY, Lee M, Park HY, Oh M, Yum HI, Yoon A, Lee E, Nam H, Yun S, Cho H, Hur M, Kim J, Cho BC, Won J. Abstract LB-113: Enhanced anti-tumor efficacy of CEACAM1-targeting antibody after affinity maturation. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-lb-113] [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: 11/16/2022]
Abstract
Abstract
Since the huge success of PD-1 blocking antibodies in clinical studies, anti-cancer therapy has changed its strategic gear to immunotherapy, which showed the strongest potential to eradicate cancer without detrimental side effects. Antibodies targeting similar immune checkpoint proteins with immunosuppressive functions have started to surge into clinical trials. CEACAM1 (CCM1) is also a potential target for anti-cancer immunotherapy because it is an ITIM-containing inhibitory molecule expressed on activated T cells and NK cells, on which it suppresses T/NK cell-mediated pro-inflammatory immune responses. CCM1-CCM1 homophilic interaction inhibits ZAP-70 phosphorylation in the TCR proximal signaling complex, thereby suppressing T cell activation. The anti-cancer therapeutic potential of CCM1-blockade has already been demonstrated in mouse models and one of the anti-human CCM1 antibodies entered into a phase I clinical trial once. As previously reported, our clone C25 (an anti-CCM1 monoclonal antibody) activated T cells and enhanced T/NK cell-mediated tumor cell-killing in a CCM1-dependent manner. The clone C25 was further engineered to have higher efficacies through mutagenesis within the variable regions of heavy and light chains. Here, we describe mutated variants of C25 with improved in vitro tumor-killing efficacies as well as higher binding affinities while maintaining fundamental characteristics of their parental clone C25. Most importantly, C25 and its variants exclusively bind to CCM1, but not to any other homologs of the CCM family. Such strong target-specificity will be a crucial point that distinguishes our clones from the other anti-CCM1 antibodies having off-target binding activities. We are currently investigating the CCM1-dependent anti-cancer therapeutic efficacy of our final clone on the patient-derived tumor xenografts implanted in a humanized mouse model. The target-ligand expression profiling on tumor tissues from lung cancer patients revealed strong clues for patient selection criteria and co-treatment options.
Citation Format: So-Young Eun, Mijung Lee, Hye-Young Park, Miyoung Oh, Hye In Yum, Aerin Yoon, Eunhee Lee, Hyemi Nam, Sungtae Yun, Hyunjung Cho, Minkyu Hur, Jaehwan Kim, Byoung Chul Cho, Jonghwa Won. Enhanced anti-tumor efficacy of CEACAM1-targeting antibody after affinity maturation [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr LB-113.
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Affiliation(s)
- So-Young Eun
- 1Immuno-Oncology Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Mijung Lee
- 2Analytical Method Development Lab, GC Pharma, Yongin, Republic of Korea
| | - Hye-Young Park
- 1Immuno-Oncology Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Miyoung Oh
- 3Genomic Repertoire Antibody Core Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Hye In Yum
- 1Immuno-Oncology Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Aerin Yoon
- 4Antibody Engineering Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Eunhee Lee
- 5Oncology Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Hyemi Nam
- 1Immuno-Oncology Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Sungtae Yun
- 6Cell Engineering Lab, GC Pharma, Yongin, Republic of Korea
| | - Hyunjung Cho
- 5Oncology Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Minkyu Hur
- 5Oncology Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
| | - Jaehwan Kim
- 7Division of Medical Oncology, Yonsei Cancer Center, Seoul, Republic of Korea
| | - Byoung Chul Cho
- 7Division of Medical Oncology, Yonsei Cancer Center, Seoul, Republic of Korea
| | - Jonghwa Won
- 5Oncology Lab, MOGAM Institute for Biomedical Research, Yongin, Republic of Korea
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Ha TS, Park HY. FP085ANGIOTENSIN II TRIGGERS PODOCYTE APOPTOSIS BY THE INHIBITION OF CD2AP AND AMPK. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp085] [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: 11/15/2022] Open
Affiliation(s)
- Tae-Sun Ha
- Pediatrics, Chungbuk National University Hospital, Cheongju, Korea, Republic of
| | - Hye-Young Park
- Pediatrics, Chungbuk National University, Cheongju, Korea, Republic of
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13
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Lee H, Sohn YM, Ko JY, Lee SY, Jhun BW, Park HY, Jeon K, Kim DH, Kim SY, Choi JE, Moon IJ, Shin SJ, Park HJ, Koh WJ. Once-daily dosing of amikacin for treatment of Mycobacterium abscessus lung disease. Int J Tuberc Lung Dis 2018. [PMID: 28633708 DOI: 10.5588/ijtld.16.0791] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Tertiary referral centre, Samsung Medical Center, South Korea. OBJECTIVE To evaluate the pharmacokinetic parameters and toxicities of once-daily amikacin (AMK) dosing for lung disease due to Mycobacterium abscessus. DESIGN A retrospective review of 48 patients with M. abscessus lung disease who received once-daily AMK for 4 weeks between January 2012 and June 2015. RESULTS With a starting dose of 15 mg/kg/day and adjustment of AMK dose according to the peak serum level (Cmax), the Cmax target of 55-65 μg/ml was achieved in 31.3% (15/48) of patients in the first week, 68.8% (33/48) in week 2, 91.7% (44/48) in week 3 and 95.8% (46/48) in week 4. Transient nephrotoxicity developed in 6.3% (3/48) of patients and ototoxicity in 25.0% (6/24), which was determined by audiogram as hearing loss, asymptomatic in five patients and tinnitus in one. Multivariate analysis revealed that the highest drug concentration 12 h after administration was significantly associated with the development of toxicities (adjusted odds ratio 1.862, P = 0.047). CONCLUSION Our results suggest that once-daily AMK for 4 weeks with a target Cmax of 55-65 μg/ml can be used in patients with M. abscessus lung disease, with careful monitoring of toxicity.
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Affiliation(s)
- H Lee
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Y M Sohn
- Department of Pharmaceutical Services
| | - J Y Ko
- Department of Pharmaceutical Services
| | - S-Y Lee
- Department of Laboratory Medicine and Genetics
| | - B W Jhun
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - H Y Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - K Jeon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - D H Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - S-Y Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - J E Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - I J Moon
- Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - S J Shin
- Department of Microbiology, Yonsei University College of Medicine, Seoul, South Korea
| | - H J Park
- Department of Pharmaceutical Services
| | - W-J Koh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
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14
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Jhun BW, Kim SY, Kong JH, Park JR, Park SY, Shim MA, Jeon K, Park HY, Shin SJ, Koh WJ. The 100 most-cited articles on non-tuberculous mycobacterial infection from 1995 to 2015. Int J Tuberc Lung Dis 2018; 21:100-106. [PMID: 28157472 DOI: 10.5588/ijtld.16.0527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Citation analyses aid in assessing quality, trends and future directions of research fields. OBJECTIVE To identify the most influential articles on infections caused by non-tuberculous mycobacteria (NTM) in the last 20 years. DESIGN We performed a cited reference search of the Web of Science database from 1995 to 2015. The 100 most cited articles on NTM infections were analysed. RESULTS The top 100 articles were cited 114-1471 times, and were published from 1995 to 2013. Sixty-five were laboratory-based, basic science articles, with the major topics being pathophysiology (n = 20) and molecular methods for NTM identification (n = 15). Among the 35 non-laboratory studies, major topics were clinical management (n = 15) and epidemiology (n = 14). The top article was a clinical treatise on the management of NTM disease, published in 2007. Although there was a correlation between article rank and journal impact factor (P = 0.043, ρ = -0.202), the five articles from the journals with highest impact factors did not rank among the top 10 articles. CONCLUSION A large proportion of influential articles on NTM infection are basic scientific studies, and the most influential articles are not always published in high-impact journals.
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Affiliation(s)
- B W Jhun
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - S-Y Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - J H Kong
- Samsung Medical Information and Media Services Samsung Medical Center, Seoul, South Korea
| | - J R Park
- Samsung Medical Information and Media Services Samsung Medical Center, Seoul, South Korea
| | - S Y Park
- Samsung Medical Information and Media Services Samsung Medical Center, Seoul, South Korea
| | - M A Shim
- Samsung Medical Information and Media Services Samsung Medical Center, Seoul, South Korea
| | - K Jeon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - H Y Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - S J Shin
- Department of Microbiology, Institute for Immunology and Immunological Disease, Yonsei University College of Medicine, Seoul, South Korea
| | - W-J Koh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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15
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Park J, Park HY, Kim S, Kim HS, Park JY, Go H, Lee CW. Pellino 1 inactivates mitotic spindle checkpoint by targeting BubR1 for ubiquitinational degradation. Oncotarget 2018; 8:32055-32067. [PMID: 28410192 PMCID: PMC5458268 DOI: 10.18632/oncotarget.16762] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 03/22/2017] [Indexed: 02/01/2023] Open
Abstract
Aberrant constitutive activation of receptor-mediated downstream signalling plays an active role in the deregulation of cell cycle control. The mitotic spindle checkpoint is important in preventing abnormal mitotic cell cycle with chromosome missegregation from achieving neoplastic aneuploidy. However, mechanisms coupling receptor-mediated signalling to mitotic spindle checkpoint regulation remain unclear. Pellino 1 is a receptor signal-responsive E3 ubiquitin ligase, and the application of certain receptor-mediated signalling regulates the expression and activity of Pellino 1. In the present study, Pellino 1 expression induced extensive chromosome aneuploidy and allowed abnormal mitotic cells to adapt and become aneuploid in vitro and in vivo. Pellino 1 directly interacted with BubR1, a key component of mitotic spindle checkpoint, in a mitotic cell-cycle dependent manner, and down-regulated the stability of BubR1 by ubiquitination-mediated degradation and induced mitotic dysfunction. In summary, Pellino 1 expression acts as an inhibitory signal of the homeostatic regulation of mitotic cell cycle and checkpoint, and thus contributes to the initiation and progression of neoplastic chromosome aneuploidy.
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Affiliation(s)
- Jihyun Park
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Hye-Young Park
- MOGAM Institute for Biomedical Research, Yongin 16924, Republic of Korea
| | - Suhyeon Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - Hyun-Soo Kim
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - Ji Y Park
- Department of Pathology, Daegu Catholic University Medical Center, School of Medicine, Catholic University of Daegu, Daegu 42472, Republic of Korea
| | - Heounjeong Go
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Korea
| | - Chang-Woo Lee
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Republic of Korea.,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
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16
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Lee H, Han JH, Park HY, Jeon K, Huh HJ, Ki CS, Lee NY, Koh WJ. Liquid culture enhances diagnosis of patients with milder forms of non-tuberculous mycobacterial lung disease. Int J Tuberc Lung Dis 2018; 21:345-350. [PMID: 28225347 DOI: 10.5588/ijtld.16.0606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To evaluate the proportion and clinical characteristics of patients with non-tuberculous mycobacteria (NTM) lung disease diagnosed based on positive culture results in liquid medium only. METHODS We reviewed the medical records of 978 patients diagnosed with NTM lung disease. All clinical samples were cultured in both solid and liquid media. RESULTS Of the 978 patients, 111 (11.3%) were culture-positive in liquid medium only (liquid culture group), and 867 (88.7%) (solid culture group) on solid medium, regardless of the culture results in liquid medium. At the time of diagnosis, the liquid culture group was less likely than the solid culture group to have haemoptysis (11.7% vs. 20.0%, P = 0.04), positive sputum smear for acid-fast bacilli (14.4% vs. 50.2%, P < 0.001) or the fibrocavitary form of NTM lung disease (3.6% vs. 14.6%, P = 0.001). During the median follow-up period of 28.9 months (interquartile range 19.1-41.6), the proportion of patients requiring antibiotic treatment was lower in the liquid culture group than in the solid culture group (44.1% vs. 61.6%, P < 0.001). CONCLUSIONS Liquid media culture is helpful in the diagnosis of patients with less severe forms of NTM lung disease.
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Affiliation(s)
- H Lee
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - J-H Han
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - H Y Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - K Jeon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - H J Huh
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - C-S Ki
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - N Y Lee
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - W-J Koh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
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Kim SY, Chang B, Jeong BH, Park HY, Jeon K, Shin SJ, Koh WJ. Implication of vitamin D-associated factors in patients with non-tuberculous mycobacterial lung disease. Int J Tuberc Lung Dis 2018; 20:1594-1602. [PMID: 27931333 DOI: 10.5588/ijtld.16.0347] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Little information is available regarding vitamin D-associated factors in patients with non-tuberculous mycobacteria (NTM) lung disease. OBJECTIVE To determine the association between vitamin D-related factors and susceptibility to NTM lung disease. DESIGN The relative gene expression levels of cathelicidin (CAMP), defensin (DEFB4), vitamin D receptor (VDR) and 1-hydroxylase (CYP27B1), as well as the serum levels of 25-hydroxyvitamin D (25[OH]D), cathelicidin (LL-37), defensin (hBD-2) and vitamin D-binding protein (DBP) from 82 patients with NTM lung disease and 28 control subjects were analysed. RESULTS Gene expression of CAMP and DEFB4 was significantly higher, and gene expression of VDR and CYP27B1 was significantly lower, in NTM patients than controls. Serum LL-37 and hBD-2 levels were not significantly different between NTM patients and controls; however, the serum DBP level was higher in NTM patients than controls. The serum vitamin D status of patients did not correlate with serum LL-37, hBD-2, or DBP concentration or gene expression of CAMP, DEFB4, VDR or CYP27B1. CONCLUSION A higher level of gene expression for antimicrobial peptide is more likely to be associated with NTM lung disease than serum vitamin D status.
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Affiliation(s)
- S-Y Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - B Chang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Department of Pulmonary and Critical Care Medicine, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University
| | - B-H Jeong
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - H Y Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - K Jeon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - S J Shin
- Department of Microbiology, Institute for Immunology and Immunological Diseases, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - W-J Koh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
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Kwon HH, Park HY, Choi SC, Bae Y, Jung JY, Park GH. Novel device-based acne treatments: comparison of a 1450-nm diode laser and microneedling radiofrequency on mild-to-moderate acne vulgaris and seborrhoea in Korean patients through a 20-week prospective, randomized, split-face study. J Eur Acad Dermatol Venereol 2017; 32:639-644. [PMID: 29178495 DOI: 10.1111/jdv.14714] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 11/08/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND While device-based acne treatments are widely applied for patients not tolerating conventional medications, related controlled studies have been still limited. Recently, non-ablative 1450-nm diode laser (DL) and fractional microneedling radiofrequency (FMR) have been effectively used for acne, in addition to well-recognized dermal remodelling effects. OBJECTIVE To compare the clinical course of acne treatment between DL and FMR. METHODS Twenty-five Korean patients with mild-to-moderate facial acne completed treatments with DL and FMR through a 20-week, randomized split-face study. One randomly assigned half side of each patient's face received DL and the other side by FMR. Treatments were scheduled to receive three consecutive sessions at 4-week intervals. Objective assessments including revised Leeds grades, lesion counts, sebum output measurements, and patients' subjective satisfaction were investigated. RESULTS Both DL and FMR demonstrated steady improvement of acne and seborrhoea during treatment sessions. While results between two devices were similar during treatment sessions, FMR was superior to DL in the 12-week follow-up. Patients' subjective assessments for seborrhoea improvement were similar between two devices, while those for acne, skin texture, and acne scars were more satisfactory for FMR. For safety profile, no significant difference was observed between two regimens, while mild postinflammatory hyperpigmentation was observed only in DL side. CONCLUSION Both DL and FMR demonstrated efficacies for acne and seborrhoea, with reasonable safety profile. FMR was more effective than DL for the long-term maintenance, and subjective assessments for texture and scar improvements. Therefore, a few sessions of these devices would be a viable option for acne treatments.
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Affiliation(s)
- H H Kwon
- Oaro Dermatology Clinic, Seoul, Korea
| | - H Y Park
- Oaro Dermatology Clinic, Seoul, Korea
| | - S C Choi
- Oaro Dermatology Clinic, Seoul, Korea
| | - Y Bae
- Department of Dermatology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - J Y Jung
- Oaro Dermatology Clinic, Seoul, Korea
| | - G-H Park
- Department of Dermatology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
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Kim SH, Park KN, Kim J, Eun CK, Park YM, Oh MK, Choi KH, Kim HJ, Kim DW, Choo HJ, Cho JH, Oh JH, Park HY. Accuracy of Plain Abdominal Radiography in the Differentiation between Small Bowel Obstruction and Small Bowel Ileus in Acute Abdomen Presenting to Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791101800202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Introduction Our purpose was to evaluate whether plain abdominal radiography (PAR) could accurately differentiate between small bowel obstruction (SBO) and small bowel ileus (SBI) in an emergency setting. We also evaluated the value of known classic signs on the PAR for differentiating between SBO and SBI. Methods This retrospective study included 216 emergency room patients who had small bowel distension (maximal small bowel diameter ≥2.5 cm) on the PAR and who underwent successive abdominal computed tomography. One radiologist and one emergency physician retrospectively reviewed PAR in consensus, unaware of the patients' clinical data; they divided the patients into an SBO group and an SBI group according to the radiographic findings. Presence or numeric values of 10 radiographic signs were also recorded. Final diagnoses of SBO and SBI were established by a combined analysis of medical charts, surgical records, radiographic findings on abdominal computed tomography, and small bowel studies. The differential diagnoses based on PAR and the final diagnoses were compared, and the sensitivity and specificity of PAR were calculated. We also evaluated the differences among 10 radiographic signs between the final SBO and SBI groups. Results Sensitivity and specificity of PAR for SBO were 82.0% and 92.4%, respectively. Among the 10 radiographic signs, all except maximal colon diameter were statistically significant predictors on the final diagnosis. Conclusions PAR is an accurate and effective initial imaging modality for differentiating between SBO and SBI in an emergency setting, and most of the classic radiographic signs have a diagnostic value.
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Affiliation(s)
- SH Kim
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - KN Park
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - J Kim
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - CK Eun
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - YM Park
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - MK Oh
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - KH Choi
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
- Uijeongbu St. Mary's Hospital, Department of Emergency Medicine, The Catholic University of Korea, 65-1 Geumo-dong, Uijeongbu-si, Gyeonggi-do, 480-717, Republic of Korea
| | - HJ Kim
- Uijeongbu St. Mary's Hospital, Department of Emergency Medicine, The Catholic University of Korea, 65-1 Geumo-dong, Uijeongbu-si, Gyeonggi-do, 480-717, Republic of Korea
| | - DW Kim
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - HJ Choo
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - JH Cho
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - JH Oh
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
| | - HY Park
- Inje University Haeundae Paik Hospital, Department of Emergency Medicine, 1435 Jwa-dong, Haewondae-gu, Busan 612-030, Republic of Korea
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20
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Park HY, Kim JS. Factors influencing disaster nursing core competencies of emergency nurses. Appl Nurs Res 2017; 37:1-5. [PMID: 28985913 PMCID: PMC7135655 DOI: 10.1016/j.apnr.2017.06.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 02/09/2017] [Accepted: 06/04/2017] [Indexed: 11/21/2022]
Abstract
Background Emergency nurses are expected to provide required nursing services by using their professional expertise to reduce the risk posed by disasters. Thus, emergency nurses' disaster nursing core competencies are essential for coping with disasters. The purpose of the study reported here was to identify factors influencing the disaster nursing core competencies of emergency nurses. Methods A survey was conducted among 231 emergency nurses working in 12 hospitals in South Korea. Data were collected on disaster-related experience, attitude, knowledge, and disaster nursing core competencies by means of a questionnaire. Results In multiple regression analysis, disaster-related experience exerted the strongest influence on disaster nursing core competencies, followed by disaster-related knowledge. The explanatory power of these factors was 25.6%, which was statistically significant (F = 12.189, p < 0.001). Conclusions These findings indicate that the disaster nursing core competencies of emergency nurses could be improved through education and training programs that enhance their disaster preparedness. The nursing profession needs to participate actively in the development of disaster nursing education and training programs. Emergency nurses' disaster nursing core competencies are essential for coping with disasters. Disaster-related experience and knowledge were found to influence disaster nursing core competencies. Findings highlight the importance of disaster education and training programs for emergency nurses.
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Affiliation(s)
- Hye-Young Park
- Emergency Department, Inje University Ilsan Paik Hospital.
| | - Ji-Soo Kim
- College of Nursing, Gachon University, 191 Hambakmoero, Yeonsu-gu, Incheon 406-799, Republic of Korea.
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21
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Hwang IY, Park EH, Park YK, Park SH, Sung GH, Park HY, Lee YC. DISTRIBUTION OF LEGIONELLA PNEUMOPHILA SEROGROUPS ISOLATED FROM WATER SYSTEMS OF PUBLIC FACILITIES IN BUSAN, SOUTH KOREA. Southeast Asian J Trop Med Public Health 2016; 47:467-474. [PMID: 27405130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Legionella pneumophila is the major causes of legionellosis worldwide. The distribution of L. pneumophila was investigated in water systems of public facilities in Busan, South Korea during 2007 and 2013-2014. L. pneumophila was isolated from 8.3% of 3,055 samples, of which the highest isolation rate (49%) was from ships and the lowest 4% from fountains. Serogroups of L. pneumophila isolated in 2007 were distributed among serogroups (sgs) 1-7 with the exception of sg 4, while those of isolates during 2013 and 2014 included also 11 sgs ( 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 15). L. pneumophila sg 1 was predominated among isolates from fountains (75%), hotels (60%), buildings (44%), hospitals (38%), and public baths (37%), whereas sg 3 and sg 7 was the most prevalent from ships (46%) and factories (40%), respectively. The predominated serogroup of L. pneumophila isolates from hot and cooling tower water was sg 1 (35% and 46%, respectively), while from cold water was sg 3 (29%). These results should be useful for epidemiological surveys to identify sources of outbreaks of legionellosis in Busan, South Korea.
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22
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Gold MJ, Hiebert PR, Park HY, Stefanowicz D, Le A, Starkey MR, Deane A, Brown AC, Liu G, Horvat JC, Ibrahim ZA, Sukkar MB, Hansbro PM, Carlsten C, VanEeden S, Sin DD, McNagny KM, Knight DA, Hirota JA. Mucosal production of uric acid by airway epithelial cells contributes to particulate matter-induced allergic sensitization. Mucosal Immunol 2016; 9:809-20. [PMID: 26509876 DOI: 10.1038/mi.2015.104] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Accepted: 09/03/2015] [Indexed: 02/07/2023]
Abstract
Exposure to particulate matter (PM), a major component of air pollution, contributes to increased morbidity and mortality worldwide. PM induces innate immune responses and contributes to allergic sensitization, although the mechanisms governing this process remain unclear. Lung mucosal uric acid has also been linked to allergic sensitization. The links among PM exposure, uric acid, and allergic sensitization remain unexplored. We therefore investigated the mechanisms behind PM-induced allergic sensitization in the context of lung mucosal uric acid. PM10 and house dust mite exposure selectively induced lung mucosal uric acid production and secretion in vivo, which did not occur with other challenges (lipopolysaccharide, virus, bacteria, or inflammatory/fibrotic stimuli). PM10-induced uric acid mediates allergic sensitization and augments antigen-specific T-cell proliferation, which is inhibited by uricase. We then demonstrate that human airway epithelial cells secrete uric acid basally and after stimulation through a previously unidentified mucosal secretion system. Our work discovers a previously unknown mechanism of air pollution-induced, uric acid-mediated, allergic sensitization that may be important in the pathogenesis of asthma.
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Affiliation(s)
- M J Gold
- Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - P R Hiebert
- James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - H Y Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - D Stefanowicz
- James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - A Le
- James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - M R Starkey
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia
| | - A Deane
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia
| | - A C Brown
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia
| | - G Liu
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia
| | - J C Horvat
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia
| | - Z A Ibrahim
- Discipline of Pharmacy, Graduate School of Health, The University of Technology Sydney, Sydney, Australia.,Woolcock Institute of Medical Research, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - M B Sukkar
- Discipline of Pharmacy, Graduate School of Health, The University of Technology Sydney, Sydney, Australia.,Woolcock Institute of Medical Research, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - P M Hansbro
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia
| | - C Carlsten
- James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Vancouver Coastal Health Research Institute, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - S VanEeden
- James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - D D Sin
- James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - K M McNagny
- Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | - D A Knight
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia.,School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.,Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
| | - J A Hirota
- James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Vancouver Coastal Health Research Institute, Vancouver General Hospital, Vancouver, British Columbia, Canada
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23
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Abstract
Angiotensin II (Ang II) induces the pathological process of vascular structures, including renal glomeruli by hemodynamic and nonhemodynamic direct effects. In kidneys, Ang II plays an important role in the development of proteinuria by the modification of podocyte molecules. We have previously found that Ang II suppressed podocyte AMP-activated protein kinase (AMPK) via Ang II type 1 receptor and MAPK signaling pathway. In the present study, we investigated the roles of AMPK on the changes of p130Cas of podocyte by Ang II. We cultured mouse podocytes and treated them with various concentrations of Ang II and AMPK-modulating agents and analyzed the changes of p130Cas by confocal imaging and western blotting. In immunofluorescence study, Ang II decreased the intensity of p130Cas and changed its localization from peripheral cytoplasm into peri-nuclear areas in a concentrated pattern in podocytes. Ang II also reduced the amount of p130Cas in time and dose-sensitive manners. AMPK activators, metformin and AICAR, restored the suppressed and mal-localized p130Cas significantly, whereas, compound C, an AMPK inhibitor, further aggravated the changes of p130Cas. Losartan, an Ang II type 1 receptor antagonist, recovered the abnormal changes of p130Cas suppressed by Ang II. These results suggest that Ang II induces the relocalization and suppression of podocyte p130Cas by the suppression of AMPK via Ang II type 1 receptor, which would contribute to Ang II-induced podocyte injury.
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Affiliation(s)
- Tae-Sun Ha
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Hye-Young Park
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Su-Bin Seong
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Hee-Yul Ahn
- Department of Pharmacology, College of Medicine, Chungbuk National University, Cheongju, Korea
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24
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Abstract
RNA is a key player in the process of gene expression. Whereas fluorescence in situ hybridization allows single mRNA imaging in fixed cells, the MS2-GFP labeling technique enables the observation of mRNA dynamics in living cells. Recently, two genetically engineered mouse models have been developed for the application of the MS2-GFP system in live animals. First, the Actb-MBS mouse was generated by knocking in 24 repeats of the MS2 stem-loop sequence in the 3' untranslated region of the β-actin gene. Second, the MCP mouse was made to express the NLS-HA-MCP-GFP transgene in all cell types. By crossing Actb-MBS and MCP mice, a double homozygous mouse line, MCP×MBS, was established to visualize endogenous β-actin mRNA labeled with multiple green fluorescent proteins. By imaging hippocampal neurons or brain slices from MCP×MBS mice, the dynamics of mRNA, such as transcription, transport, and localization, can be studied at single mRNA resolution. In this chapter, we explain the basics of MCP×MBS mice and describe methods for utilizing these animals.
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Affiliation(s)
- H C Moon
- Seoul National University, Seoul, South Korea
| | - H Y Park
- Seoul National University, Seoul, South Korea.
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25
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Lee SJ, Chae YS, Kwon TJ, Chung JH, Lee J, Jung JH, Kim WW, Park HY, Jeong JY, Park SH, Park S. Abstract P4-09-21: Dual expression of aquaporin 3 and 5 in patients with early breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p4-09-21] [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: 11/16/2022]
Abstract
Abstract
Background: We reported separately that AQP5 or AQP3 expression in tumor tissue may predict survival after surgery for the specific types of early breast cancer (EBC). However, there is no definitive evidence for the role of dual expression of the two AQPs. Therefore, the current study focused the association and its prognostic impact of their tumoral expressions in the same patients.
Patients and Methods: AQP3 and AQP5 expressions were investigated on the basis of the immunohistochemistry of tissue microarray specimens from 447 EBC patients who underwent surgery between 2003 and 2008 as described in previous studies. Patients were divided into 4 subgroups based on AQP3 and AQP5 expressions: group1 for (-/-), group2 for (-/+), group 3 for (+/-), and group 4 for (+/+), respectively.
Results: Among 477 patients, the number of patients for each group was as follows: group 1 (n=193, 43.2%), group 2 (n=74, 16.6%), group3 (n=110, 24.6%) and group 4 (n=70, 15.7%), respectively. In the current study a positive correlation was identified between AQP3 and 5 expressions (P=0.017 by a χ2- test) in particular for HER2- overexpressing and ER-positive tumors (P=0.009 and 0.044, respectively). Multivariate survival analysis showed that dual expression of AQP3 and AQP5 was a negative prognostic factor for relapse-free or distant disease-free survival for patients with HER2-overexpressing EBC (HR=3.107 and 3.683; P=0.043 and 0.027, respectively), statistically more prominent compared in case with AQP3 expression alone (HR=3.137 and 2.784; P=0.036 and 0.070, respectively).
Conclusion: Dual expression of AQP3 and AQP5 in tumor tissue may be considered as a potential prognostic marker in patients with HER2-overexpressing EBC after curative surgery.
Citation Format: Lee SJ, Chae YS, Kwon TJ, Chung JH, Lee J, Jung JH, Kim WW, Park HY, Jeong JY, Park S-H, Park S. Dual expression of aquaporin 3 and 5 in patients with early breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P4-09-21.
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Affiliation(s)
- SJ Lee
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - YS Chae
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - TJ Kwon
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - JH Chung
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - J Lee
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - JH Jung
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - WW Kim
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - HY Park
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - JY Jeong
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - S-H Park
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
| | - S Park
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center
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26
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Im YH, Uslu R, Lee KS, Nagarkar R, Sohn J, Sevinc A, Altundag K, Chang YC, Abdel-Razeq H, Im SA, Jeong J, Park HY, Arpornwirat W, Bastick P, Le TH, Ocak Arikan O, Xue HL, Canatar A, Valenti R, Kim SB. Abstract P4-13-09: Clinical effectiveness of everolimus and exemestane in advanced breast cancer patients from Asia and Africa: First efficacy and updated safety results from the phase IIIb EVEREXES study. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p4-13-09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
BOLERO-2 phase III trial established the efficacy of everolimus (EVE) plus exemestane (EXE) for the treatment of postmenopausal patients with hormone receptor (HR)-positive, HER2-negative, advanced breast cancer (aBC). However, in this study only a minority (<10%) of patients were recruited from African and Asia Pacific countries. Considering the potential effects of ethnic and cultural differences on treatment effectiveness, it remains compelling to confirm the safety and efficacy profile of EVE+EXE in these populations.
Methods
EVEREXES is an open-label phase IIIb, single arm, multi-center trial, which from March 2013 to October 2014 enrolled 232 post-menopausal, HR-positive and HER2-negative, aBC patients previously treated with aromatase inhibitors, across 13 countries in Asia Pacific, Middle East, North and South Africa, with a significant majority of patients being of Asian ethnicity (196, 84.5%). Its primary objective was to investigate the safety and tolerability profile of EVE+EXE. Secondary objectives were the evaluation of efficacy (assessed by PFS, ORR, and CBR based on RECIST 1.1 criteria) and change in ECOG performance status.
Results
At data cut off of 31st of January 2015, at a median follow up of 11.7 months, median PFS for the ITT population was 9.5 months [9.2-11.6 months], based on local assessment, with the observation of 1 (0.4%) CR and 35 (15.4%) PR. Regarding safety and tolerability, a majority (81.1%) of grade (G) 1/2 adverse events (AEs) was reported. In particular, the following pattern was observed in terms of % of patients who developed G1/G2/G3 mTOR-inhibition induced AEs: stomatitis (36.1, 13.7, 10.6), rash (21.6/6.2/0), fatigue (10.6, 4.4, 2.2), hyperglycemia (6.2, 11.5, 7.0), weight decrease (7.5, 7, 0.9), pneumonitis (5.7, 7, 0.9). No Grade 4 AEs related to EVE+EXE treatment were observed, with exception of one case of non infectious pneumonitis (0.4%). Median dose intensity of everolimus was 9.2 mg/day.
Conclusions
Efficacy and safety results from EVEREXES trial further confirm the role of EVE+EXE for the treatment of HR+/Her2- advanced BC patients in Eastern countries. Results were consistent with data previously reported in BOLERO-2 trial.
Citation Format: Im Y-H, Uslu R, Lee KS, Nagarkar R, Sohn J, Sevinc A, Altundag K, Chang Y-C, Abdel-Razeq H, Im S-A, Jeong J, Park HY, Arpornwirat W, Bastick P, Le TH, Ocak Arikan O, Xue HL, Canatar A, Valenti R, Kim S-B. Clinical effectiveness of everolimus and exemestane in advanced breast cancer patients from Asia and Africa: First efficacy and updated safety results from the phase IIIb EVEREXES study. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P4-13-09.
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Affiliation(s)
- Y-H Im
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - R Uslu
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - KS Lee
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - R Nagarkar
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Sohn
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - A Sevinc
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - K Altundag
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Y-C Chang
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H Abdel-Razeq
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S-A Im
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Jeong
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - HY Park
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - W Arpornwirat
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - P Bastick
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - TH Le
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - O Ocak Arikan
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - HL Xue
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - A Canatar
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - R Valenti
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S-B Kim
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Yoon SD, Oh SK, Park HY, Woo KS, Choi I, Cho YB, Park SH, Jeong EG, Kim WH. Changing Consumption Patterns for Processed Rice Food Products in Metropolitan Household of Korea : 2010 ~ 2014. ACTA ACUST UNITED AC 2015. [DOI: 10.12719/ksia.2015.27.5.631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Ha TS, Park HY, Seong SB, Ahn HY. Puromycin aminonucleoside increases podocyte permeability by modulating ZO-1 in an oxidative stress-dependent manner. Exp Cell Res 2015; 340:139-49. [PMID: 26683996 DOI: 10.1016/j.yexcr.2015.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 11/17/2015] [Accepted: 12/08/2015] [Indexed: 11/30/2022]
Abstract
Puromycin aminonucleoside (PAN)-induced nephrosis is a widely studied animal model of human idiopathic nephrotic syndrome because PAN injection into rats results in increased glomerular permeability with the characteristic ultrastructural changes in podocytes similar to human nephrosis. To investigate the role of zonula occludens (ZO)-1 and oxidative stress on PAN-induced podocyte phenotypical changes and hyperpermeability in vitro, we cultured rat and mouse podocytes and treated with various concentrations of PAN. PAN treatment increased oxidative stress level of podocytes significantly with the induction of Nox4. In addition, PAN changed the ultrastructure of podocytes, such as shortening and fusion of microvilli, and the separation of intercellular gaps, which were improved by anti-oxidative vitamin C and Nox4 siRNA. PAN also disrupted the intercellular linear ZO-1 staining and induced inner cytoplasmic re-localization of ZO-1 protein, resulting in increased podocyte intercellular permeability. PAN reduced ZO-1 protein amount and mRNA expression in a dose-dependent manner, which means that PAN could also modulate ZO-1 protein transcriptionally. However, the decreased ZO-1 protein of podocytes by PAN was improved by Nox4 siRNA transfection. Furthermore, vitamin C mitigated the quantitative and distributional disturbances of ZO-1 protein caused by PAN. Our results demonstrate that the phenotypical changes of intercellular ZO-1 by oxidative stress via Nox4 likely contribute to the glomerular hyperpermeability caused by PAN.
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Affiliation(s)
- Tae-Sun Ha
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, South Korea.
| | - Hye-Young Park
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, South Korea
| | - Su-Bin Seong
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, South Korea
| | - Hee Yul Ahn
- Department of Pharmacology, College of Medicine, Chungbuk National University, Cheongju, South Korea
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Ha TS, Park HY, Seong SB, Ahn HY. Angiotensin II induces endoplasmic reticulum stress in podocyte, which would be further augmented by PI3-kinase inhibition. Clin Hypertens 2015; 21:13. [PMID: 26893923 PMCID: PMC4750790 DOI: 10.1186/s40885-015-0018-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 03/10/2015] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Angiotensin II (Ang II) contributes to the pathological process of vascular structures, including renal glomeruli by hemodynamic and nonhemodynamic direct effects. On renal effects, Ang II plays an important role in the development of proteinuria and glomerulosclerosis by the modification of podocyte molecules and cell survival. In the present study, we investigated the effect of Ang II on endoplasmic reticulum (ER) stress in podocytes. METHODS We cultured mouse podocytes with increasing doses of Ang II and evaluated ER stress markers by Western blotting. RESULTS Ang II increased Bip protein, an ER chaperone, in a dose-dependent manner at 24 h, which was ameliorated by losartan, an angiotensin II type 1 receptor antagonist. Ang II also increased ER stress markers, such as phospho-PERK, phospho-eIF2α, and ATF4 proteins of podocyte, significantly in a dose-dependent manner at 24 h. Increased phospho-PERK and ATF4 proteins were further augmented by phosphoinositide 3 (PI3)-kinase inhibitor, LY294002, which suggested that Ang II could induce podocyte ER stress of PERK-eIF2α-ATF4 axis via PI3-kinase pathway. DISCUSSION These studies suggest that Ang II could induce podocyte ER stress of PERK-eIF2α-ATF4 axis via PI3-kinase pathway, which would contribute to the development of podocyte injury induced by Ang II, and the augmentation of PI3-kinase would be a therapeutic target.
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Affiliation(s)
- Tae-Sun Ha
- Department of Pediatrics, College of Medicine, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, 361-240 South Korea
| | - Hye-Young Park
- Department of Pediatrics, College of Medicine, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, 361-240 South Korea
| | - Su-Bin Seong
- Department of Pediatrics, College of Medicine, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, 361-240 South Korea
| | - Hee Yul Ahn
- Department of Pharmacology, College of Medicine, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, 361-240 South Korea
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Park HY, Lee EJ, Ryu YW, Kim Y, Kim H, Lee H, Yi SJ. Epidemiological investigation of MERS-CoV spread in a single hospital in South Korea, May to June 2015. ACTA ACUST UNITED AC 2015; 20:1-6. [PMID: 26132766 DOI: 10.2807/1560-7917.es2015.20.25.21169] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In this report, we describe 37 MERS-CoV infection cases (1 primary, 25 secondary, 11 tertiary cases) in a single hospital in South Korea. The median incubation period was six days (95% CI: 4–7 days) and the duration between suspected symptom onset and laboratory confirmation was 6.5 days (95% CI: 4–9). While incubation period was two days longer, the duration from suspected symptom onset to confirmation was shorter in tertiary compared with secondary infections.
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Affiliation(s)
- H Y Park
- Gyeonggi Infectious Disease Control Center, Seongnam, Gyeonggi, Republic of Korea
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Shin JI, Park HY, Park SJ, Ha TS. Role of vitamin D in improvement in changes of podocyte P-cadherin/β-catenin complex induced by diabetic conditions. Iran J Kidney Dis 2015; 9:194-201. [PMID: 25957423] [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] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 10/19/2014] [Indexed: 06/04/2023]
Abstract
INTRODUCTION This study aimed to investigate the effect of vitamin D on the pathologic changes of podocyte β-catenin and P-cadherin and podocyte permeability induced by diabetic conditions. MATERIALS AND METHODS We cultured mouse podocytes under normal glucose (5 mM, control); high glucose (HG, 30 mM); advanced glycosylation end products (AGE)-added; and HG plus AGE-added conditions and treated with vitamin D. The distribution of podocyte β-catenin and P-cadherin was shown by confocal microscopy, and protein levels of β-catenin and P-cadherin by Western blotting. Podocytes were incubated with vitamin D at the concentrations of 10 nM and 50 nM for 6, 24, and 48 hours. RESULTS The dextran filtration through monolayered podocytes tended to increase in AGE and HG condition compared to that in B5 at 16 hours in permeability assay, which was improved by vitamin D. In confocal imaging, the distribution of β-catenin and P-cadherin were internally concentrated by diabetic conditions, which was ameliorated by vitamin D. In Western blotting, HG and AGE decreased β-catenin protein levels at 6, 24, and 48 hours and vitamin D improved the decreased β-catenin protein levels at 6, 24, and 48 hours. Advanced glycosylation end products also decreased P-cadherin protein amount by 22.9% and 59.1% (P <.01) at 24 hours, respectively, which was improved by vitamin D. CONCLUSIONS Our results suggest that HG and AGE have an influence on the redistribution of β-catenin and P-cadherin and amount of β-catenin protein of podocytes, thereby causing hyperpermeability, which can be reversed by vitamin D.
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Affiliation(s)
- Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Severance Children's Hospital, Seoul, Korea.
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Park HY, Kim JH, Choi S, Kang E, Oh S, Kim JY, Kim SW. Psychological effects of a cosmetic education programme in patients with breast cancer. Eur J Cancer Care (Engl) 2015; 24:493-502. [PMID: 25651297 DOI: 10.1111/ecc.12290] [Citation(s) in RCA: 18] [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] [Accepted: 12/15/2014] [Indexed: 12/24/2022]
Abstract
Treatments for breast cancer often include interventions related to psychosocial issues such as negative body image, loss of femininity, and low self-esteem. We identified the psychological effects of a cosmetics education programme in patients with breast cancer. Cosmetic programme is a specific care designed to help patients handle appearance-related side effects. Thirty-one women with breast cancer at a university hospital in South Korea who received a cosmetics education programme were compared with 29 subjects in a control group who received the treatment as usual. Psychological factors including distress, self-esteem, and sexual functioning were assessed three times (before and after the programme, and at the 1-month follow-up). After the programme, patients in the treatment group were significantly less likely than those in the control group to rely on distress (P = 0.038) and avoidance coping (P < 0.001) but not on self-esteem. The mean scores in the treatment group for sexual functioning were higher than those in the control group after the treatment. Our results suggest the potential usefulness of a brief cosmetics education programme for reducing distress and reliance on negative coping strategies. Implementing a cosmetics programme for patients with breast cancer may encourage patients to control negative psychological factors.
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Affiliation(s)
- H Y Park
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
| | - J H Kim
- Mental Health & Behavioral Medicine Services for Clinical Departments, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
| | - S Choi
- Department of Psychology, Duksung Women's University, Seoul
| | - E Kang
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
| | - S Oh
- Department of Biostatistics, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul
| | - J Y Kim
- Department of Family Medicine, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
| | - S W Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
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Park HY, Go H, Song HR, Kim S, Ha GH, Jeon YK, Kim JE, Lee H, Cho H, Kang HC, Chung HY, Kim CW, Chung DH, Lee CW. Pellino 1 promotes lymphomagenesis by deregulating BCL6 polyubiquitination. J Clin Invest 2014; 124:4976-88. [PMID: 25295537 DOI: 10.1172/jci75667] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 09/04/2014] [Indexed: 12/13/2022] Open
Abstract
The signal-responsive E3 ubiquitin ligase pellino 1 (PELI1) regulates TLR and T cell receptor (TCR) signaling and contributes to the maintenance of autoimmunity; however, little is known about the consequence of mutations that result in upregulation of PELI1. Here, we developed transgenic mice that constitutively express human PELI1 and determined that these mice have a shorter lifespan due to tumor formation. Constitutive expression of PELI1 resulted in ligand-independent hyperactivation of B cells and facilitated the development of a wide range of lymphoid tumors, with prominent B cell infiltration observed across multiple organs. PELI1 directly interacted with the oncoprotein B cell chronic lymphocytic leukemia (BCL6) and induced lysine 63-mediated BCL6 polyubiquitination. In samples from patients with diffuse large B cell lymphomas (DLBCLs), PELI1 expression levels positively correlated with BCL6 expression, and PELI1 overexpression was closely associated with poor prognosis in DLBCLs. Together, these results suggest that increased PELI1 expression and subsequent induction of BCL6 promotes lymphomagenesis and that this pathway may be a potential target for therapeutic strategies to treat B cell lymphomas.
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Kim S, Park HY, Song HR, Go H, Cho H, Chung DH, Lee CW. Abstract 5087: Peli 1 targets BubR1 for ubiquitinational degradation and induces aneuploidy transformation. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-5087] [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: 11/16/2022]
Abstract
Abstract
Disruption of the BubR1-mediated function negatively impacts mitotic checkpoint control, increases chromosomal instability, and is associated with infertility, life span and cancer. Therefore, BubR1 plays an important role in preventing abnormal mitotic cells with chromosomal aneuploidy from achieving neoplastic aneuploidy, however it remains unclear how the signalling activates or inactivates the BubR1 function during the neoplastic transformation. Here, we report that Peli 1, a new family of signal-responsive E3 ubiquitin ligase, directly interacts with BubR1. This interaction promotes the ubiquitin-mediated degradation, and prevents the kinetochore association of BubR1. In addition, cells expressing Peli 1 led to severe mitotic defects and displayed severe chromosomal aneuploidy in vitro and in vivo. Together, these results suggest that Peli 1 expression acts as a potent causative signalling against chromosome integrity by mediating the ubiquitinational degradation of BubR1, and thus contributes to the development of neoplastic chromosome aneuploidy.
Citation Format: Suhyeon Kim, Hye-Young Park, Ha Rim Song, Heounjeong Go, Hyeseong Cho, Doo Hyun Chung, Chang-Woo Lee. Peli 1 targets BubR1 for ubiquitinational degradation and induces aneuploidy transformation. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 5087. doi:10.1158/1538-7445.AM2014-5087
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Affiliation(s)
- Suhyeon Kim
- 1Samsung Biomedical Resaerch Institute, Sungkyunkwan University School of Medicine, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Hye-Young Park
- 2Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Ha Rim Song
- 3Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University School of Medicine, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Heounjeong Go
- 4Department of Pathology, Seoul National University College of Medicine, Seoul, Korea, Republic of Korea
| | - Hyeseong Cho
- 5Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon-si, Gyeonggi-do, Republic of Korea
| | - Doo Hyun Chung
- 4Department of Pathology, Seoul National University College of Medicine, Seoul, Korea, Republic of Korea
| | - Chang-Woo Lee
- 2Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon-si, Gyeonggi-do, Republic of Korea
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Kim MS, Kim S, Ha BS, Park HY, BaeK SY, Yeo SH, Ro HS. Diversity, Saccharification Capacity, and Toxigenicity Analyses of Fungal Isolates in Nuruk. The Korean Journal of Mycology 2014. [DOI: 10.4489/kjm.2014.42.3.191] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ha TS, Choi JY, Park HY, Nam JA, Seong SB. Ginseng total saponin modulates the changes of α-actinin-4 in podocytes induced by diabetic conditions. J Ginseng Res 2014; 38:233-8. [PMID: 25379001 PMCID: PMC4213837 DOI: 10.1016/j.jgr.2014.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 04/25/2014] [Accepted: 04/28/2014] [Indexed: 12/15/2022] Open
Abstract
Background The actin cytoskeleton in podocytes is essential for the maintenance of its normal structure and function. Its disruption is a feature of podocyte foot-process effacement and is associated with proteinuria. α-Actinin-4 in podocytes serves as a linker protein binding the actin filaments of the cytoskeleton. Methods To investigate the effect of ginseng total saponin (GTS) on the pathological changes of podocyte α-actinin-4 induced by diabetic conditions, we cultured mouse podocytes under normal glucose (5mM) or high glucose (HG, 30mM) conditions, with or without the addition of advanced glycosylation end products (AGE), and treated with GTS. Results In confocal imaging, α-actinin-4 colocalized with the ends of F-actin fibers in cytoplasm, but diabetic conditions disrupted F-actin fibers and concentrated α-actinin-4 molecules at the peripheral cytoplasm. GTS upregulated α-actinin protein in a time- and dose-dependent manner, and suppressed the receptor for AGE levels in western blotting. Diabetic conditions, including HG, AGE, and both together, decreased cellular α-actinin-4 protein levels at 24 h and 48 h. Such quantitative and qualitative changes of α-actinin-4 protein induced by diabetic conditions were mitigated by GTS. Conclusion These findings imply that both HG and AGE have an influence on the distribution and amount of α-actinin-4 in podocytes that can be recovered by GTS.
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Affiliation(s)
- Tae-Sun Ha
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ji-Young Choi
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Hye-Young Park
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ja-Ae Nam
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Su-Bin Seong
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
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Kim SY, Koh WJ, Park HY, Jeon K, Kwon OJ, Cho SN, Shin SJ. Changes in serum immunomolecules during antibiotic therapy for Mycobacterium avium complex lung disease. Clin Exp Immunol 2014; 176:93-101. [PMID: 24354934 DOI: 10.1111/cei.12253] [Citation(s) in RCA: 13] [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] [Accepted: 12/06/2013] [Indexed: 01/09/2023] Open
Abstract
Little information is available regarding changes in immune status for patients with Mycobacterium avium complex (MAC) lung disease during antibiotic therapy. Serum immunomolecules from 42 patients with MAC lung disease were assayed comparatively using an array-based system according to (i) patients with MAC lung disease at the time of diagnosis versus healthy controls and (ii) alterations after 12 months of antibiotic therapy in the MAC lung disease group. In addition, cytokine analyses were performed to determine whether cytokine responses were associated specifically with the disease phenotype, treatment outcome and aetiological agent. Notably, the serum concentrations of type 1 cytokine-associated molecules, such as CD40L, interferon (IFN)-γ, interleukin (IL)-8 and IL-23, were decreased significantly in patients at the time of diagnosis, suggesting that these molecules may serve as indicators of host susceptibility to MAC disease. Although the overall serum level of T helper type 1 (Th1)-related molecules, such as CD40L and IFN-γ, was restored after treatment, Th17-related cytokines, such as IL-17 and IL-23, were down-regulated significantly at 12 months post-treatment compared to pretreatment. Furthermore, these cytokine patterns differed among patient subgroups. Decreased serum concentrations of IL-17 and/or IL-23 were associated with failure of sputum conversion, the fibrocavitary disease phenotype and M. intracellulare lung disease. Thus, the reciprocal balance between Th1 and Th17 immunity during antibiotic therapy for MAC lung disease is critical for dictating the treatment response. In conclusion, a low level of Th1-related immunomolecules may perpetuate MAC lung disease, and the serum concentrations of Th17-related cytokines can reflect the treatment outcome, disease phenotype and aetiological agent.
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Affiliation(s)
- S-Y Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Ha TS, Park HY, Nam JA, Han GD. Diabetic conditions modulate the adenosine monophosphate-activated protein kinase of podocytes. Kidney Res Clin Pract 2014; 33:26-32. [PMID: 26877947 PMCID: PMC4714163 DOI: 10.1016/j.krcp.2014.02.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 01/10/2014] [Accepted: 02/06/2014] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Adenosine monophosphate-activated protein kinases (AMPKs), as a sensor of cellular energy status, have been known to play an important role in the pathophysiology of diabetes and its complications. Because AMPKs are known to be expressed in podocytes, it is possible that podocyte AMPKs could be an important contributing factor in the development of diabetic proteinuria. We investigated the roles of AMPKs in the pathological changes in podocytes induced by high-glucose (HG) and advanced glycosylation end products (AGEs) in diabetic proteinuria. METHODS We prepared streptozotocin-induced diabetic renal tissues and cultured rat and mouse podocytes under diabetic conditions with AMPK-modulating agents. The changes in AMPKα were analyzed with confocal imaging and Western blotting under the following conditions: (1) normal glucose (5mM, =control); (2) HG (30mM); (3) AGE-added; or (4) HG plus AGE-added. RESULTS The density of glomerularphospho-AMPKα in experimental diabetic nephropathy decreased as a function of the diabetic duration. Diabetic conditions including HG and AGE changed the localization of phospho-AMPKα from peripheral cytoplasm to internal cytoplasm and peri- and intranuclear areas in podocytes. HG reduced the AMPKα (Thr172) phosphorylation of rat podocytes, and similarly, AGEs reduced the AMPKα (Thr172) phosphorylation of mouse podocytes. The distributional and quantitative changes in phospho-AMPKα caused by diabetic conditions were preventable using AMPK activators, metformin, and 5-aminoimidazole-4-carboxamide-1β-riboside. CONCLUSION We suggest that diabetic conditions induce the relocation and suppression of podocyte AMPKα, which would be a suggestive mechanism in diabetic podocyte injury.
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Affiliation(s)
- Tae-Sun Ha
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Hye-Young Park
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ja-Ae Nam
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Gi-Dong Han
- Department of Food Science and Technology, College of Natural Resources, Yeungnam University, Gyeongsan, Korea
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Park HY, Kang JG, Choi HH, Hwang SO, Kim WW, Jung JH, Lee YH, Yang JD, Lee SJ. Abstract P2-19-05: Oncoplastic breast conserving surgery with perforator flap in breast cancer patients. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-19-05] [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: 11/16/2022]
Abstract
Abstract
Purpose : Oncoplastic breast surgery has been used widely as a treatment protocol for breast cancer. Thoracodorsal artery perforator (TDAP) flap and intercostal artery perforator (ICAP) flap can provide adequate cover without sacrificing any muscle and allow closing of the donor sites in inconspicuous sites. Therefore, among the oncoplastic volume replacement techniques indicated using local flap that can adequately cover the volume of breast, TDAP and ICAP are especially suggested. This study describes the use of TDAP and ICAP flap techniques after breast conserving surgery. Methods : From March 2010 to August 2012, 38 patients with breast cancer received breast reconstruction. All patients who were selected had small- to moderate-sized defects on breasts, middle aged, and were not sensitive to scars. The TDAP flap is the first choice for performing the surgery, but if the perforator of the TDAP flap is not found, a dissection toward the anterior area to find an adequate perforator is made and the serratus anterior artery perforator is normally used. Otherwise after the dissection is performed more anterior, ICAP can be used. If the perforator penetrates the LD muscle, the TDAP flap can be used. The perforator that penetrates from the serratus anterior muscle is also used in the anterior area. Otherwise, ICAP can be used in partial breast reconstruction. The TDAP flap can be applied to any defect site regardless of the size of the defect area. Results : The mean age was 44.9 years and the average follow-up interval was 6 months. The average specimen weight was 98g. Complications developed in 4 cases including 3 cases of venous congestion, though self-limited, and 1 case of wound disruption on the inframammary fold suture area. Majority of the patients were satisfied with the cosmetic result.
Conclusion : Thoracodorsal artery perforator flap (TDAP) and intercostal artery perforator flap (ICAP) techniques can be reliable and useful in correcting breast deformity after breast conservation surgery, especially in patients with small- to moderate-sized defects on breasts.
Key Words : intercostal artery perforator flap, thoracodorsal artery perforator flap Oncoplastic surgery, ICAP, TDAP.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-19-05.
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Affiliation(s)
- HY Park
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
| | - JG Kang
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
| | - HH Choi
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
| | - SO Hwang
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
| | - WW Kim
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
| | - JH Jung
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
| | - YH Lee
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
| | - JD Yang
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
| | - SJ Lee
- Kyungpook National University Medical Center, Daegu, Gyeongsangbuk-Do, Republic of Korea; Hyosung Hospital, Daegu, Gyeongsangbuk-Do, Republic of Korea
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Lee SJ, Chae YS, Park HY, Jung JH, Kim WW, Park JY, Jeong JY. Abstract P6-05-24: Expression of aquaporin 5 and its polymorphisms predict survival in patients with early breast cancer. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p6-05-24] [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: 11/16/2022]
Abstract
Abstract
Background. Our previous study showed the association of AQP5 up-regulation with cancer proliferation and migration in hormone-responsive breast cancer cell lines (MCF-7) and with unfavorable prognosis in a small number of patients with breast cancer. Accordingly, we analyzed the prognostic impact of AQP5 expression and polymorphisms in a large number of patients with early breast cancer (EBC).
Methods. AQP5 expression was investigated based on the immunohistochemistry of tissue microarray specimens from 609 EBC patients who underwent surgery between 2003 and 2008. We scored the staining intensity (IS) and percentage of positive tumor cells (PC). The genomic DNA was extracted from paraffin-embedded tumor-free tissue and then genotyped for 3 polymorphisms (rs3736309, rs1964676, and rs74091167) using the Sequenom Mass array system.
Results. Among the 3 polymorphisms, AQP5 overexpression (IS + PC ≥6) was correlated with AQP5 rs74091167 GG genotype. AQP5 overexpression and AQP5 rs74091167 was significantly associated with disease-free survival (DFS; P < 0.001 and P = 0.021, respectively). Moreover, a multivariate survival analysis revealed that AQP5 overexpression and the GG genotype of AQP5 rs74091167 were significantly associated with DFS (HR = 2.026, 95% CI 1.058-3.881, P = 0.030; HR = 0.377, 95% CI 0.179-0.793, P = 0.010, respectively) adjusted to clinicopathological variables, which was prominent in patients with an ER/PgR-positive tumor.
Conclusions. Consistent with our previous study of breast cancer cell lines, AQP5 expression and AQP5 rs74091167 variant can be considered as a prognostic marker in patients with EBC after curative surgery. In the future, functional relevance of this variant needs to be clarified.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P6-05-24.
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Affiliation(s)
- SJ Lee
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center, Daegu; Kyungpook National University Medical Center
| | - YS Chae
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center, Daegu; Kyungpook National University Medical Center
| | - HY Park
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center, Daegu; Kyungpook National University Medical Center
| | - JH Jung
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center, Daegu; Kyungpook National University Medical Center
| | - WW Kim
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center, Daegu; Kyungpook National University Medical Center
| | - J-Y Park
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center, Daegu; Kyungpook National University Medical Center
| | - JY Jeong
- Kyungpook National University Medical Center, Daegu, Korea; Kyungpook National University Medical Center, Daegu; Kyungpook National University Medical Center
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Kim SY, Lee ST, Jeong BH, Park HY, Jeon K, Kim JW, Shin SJ, Koh WJ. Genotyping of Mycobacterium intracellulare isolates and clinical characteristics of lung disease. Int J Tuberc Lung Dis 2013; 17:669-75. [PMID: 23575334 DOI: 10.5588/ijtld.12.0575] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Variable number of tandem repeats (VNTR) loci were recently identified in Japanese isolates of Mycobacterium intracellulare. We hypothesised that some mycobacterial genotypes are more virulent than others, resulting in particular genotypes being associated with disease phenotype and progression. OBJECTIVE To evaluate the VNTR loci of M. intracellulare in clinical isolates from Korean patients, and investigate the association between mycobacterial genotype and disease phenotype and progression. DESIGN In total, 70 M. intracellulare clinical isolates were genotyped using 16 M. intracellulare VNTR loci. RESULTS VNTR typing showed strong discriminatory power and genetic diversity for molecular epidemiological studies of M. intracellulare. In a phylogenetic tree, the M. intracellulare clinical isolates were divided into two clusters (A and B). Cluster A was observed more frequently (77%) than Cluster B; however, there was no association between the clinical characteristics, disease progression, drug susceptibility and clusters based on VNTR genotyping. CONCLUSIONS VNTR typing could be used for epidemiological studies of M. intracellulare lung disease; however, no association was found between the specific VNTR genotypes of M. intracellulare and the clinical characteristics of Korean patients.
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Affiliation(s)
- S-Y Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Baek CH, Jeong DH, Baek SY, Choi JH, Park HY, Choi HS, Jeong ST, Kim JH, Jeong YJ, Kwon JH, Yeo SH. Quality characteristics of farm-made brown rice vinegar via traditional static fermentation. ACTA ACUST UNITED AC 2013. [DOI: 10.11002/kjfp.2013.20.4.564] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ha TS, Lee JS, Choi JY, Park HY. Ginseng total saponin modulates podocyte p130Cas in diabetic condition. J Ginseng Res 2013; 37:94-9. [PMID: 23717162 PMCID: PMC3659616 DOI: 10.5142/jgr.2013.37.94] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Revised: 10/24/2012] [Accepted: 10/27/2012] [Indexed: 11/18/2022] Open
Abstract
Proteinuric conditions demonstrate structural and compositional changes of the foot processes and slit diaphragms between podocytes. p130Cas in podocytes serves as an adapter protein anchoring glomerular basement membrane to actin filaments of podocyte cytoskeleton. To investigate the effect of ginseng total saponin (GTS) on the pathologic changes of podocyte p130Cas induced by diabetic conditions, we cultured mouse podocytes under: 1) normal glucose (5 mM, control); 2) high glucose (HG, 30 mM); 3) advanced glycosylation endproducts (AGE)-added; or 4) HG plus AGE-added conditions and treated with GTS. In confocal imaging, p130Cas colocalized with zonula occludens-1 and synaptopodin connecting to F-actin. However, diabetic conditions relocalized p130Cas molecules at perinuclear cytoplasmic area and reduced the intensity of p130Cas. In Western blotting, diabetic conditions, especially HG plus AGE-added condition, decreased cellular p130Cas protein levels at 24 and 48 h. GTS improved such quantitative and qualitative changes. These findings imply that HG and AGE have an influence on the redistribution and amount of p130Cas of podocytes, which can be reversed by GTS.
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Affiliation(s)
- Tae-Sun Ha
- Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju 361-763, Korea
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Rhee CK, Yoo KH, Lee JH, Park MJ, Kim WJ, Park YB, Hwang YI, Kim YS, Jung JY, Moon JY, Rhee YK, Park HK, Lim JH, Park HY, Lee SW, Kim YH, Lee SH, Yoon HK, Kim JW, Kim JS, Kim YK, Oh YM, Lee SD, Kim HJ. Clinical characteristics of patients with tuberculosis-destroyed lung. Int J Tuberc Lung Dis 2013; 17:67-75. [PMID: 23232006 DOI: 10.5588/ijtld.12.0351] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Multicentre study. OBJECTIVE To define the clinical characteristics of patients with tuberculosis (TB) destroyed lung due to past TB. DESIGN We reviewed patients with TB-destroyed lung between May 2005 and June 2011. RESULTS A total of 595 patients from 21 hospitals were enrolled. The mean age was 65.63 ± 0.47 (mean ± standard error); 60.5% were male. The mean number of lobes involved was 2.59 ± 0.05. Pleural thickening was observed in 54.1% of the patients. Mean forced vital capacity (FVC), forced expiratory volume in 1 s (FEV(1)), FEV(1)/FVC, bronchodilator response and number of exacerbations per year were respectively 2.06 ± 0.03 l (61.26% ± 0.79), 1.16 ± 0.02 l (49.05% ± 0.84), 58.03% ± 0.70, 5.70% ± 0.34, and 0.40 ± 0.04. The number of lobes involved was significantly correlated with FVC and FEV(1), and with the number of exacerbations per year. Use of long-acting muscarinic antagonists or long-acting beta-2 agonists plus inhaled corticosteroids resulted in bronchodilatory effects. Multivariable regression analysis showed that age, initial FEV(1) (%) and number of exacerbations during follow-up were independent factors affecting change in FEV(1). CONCLUSION Decreased lung function with exacerbation, and progressive decline of FEV(1) were observed in patients with TB-destroyed lung.
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Affiliation(s)
- C K Rhee
- Department of Internal Medicine, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Korea
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Chang WJ, Joe KT, Park HY, Jeong JD, Lee DH. The relationship of liver function tests to mixed exposure to lead and organic solvents. Ann Occup Environ Med 2013; 25:5. [PMID: 24472152 PMCID: PMC3886255 DOI: 10.1186/2052-4374-25-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [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: 08/29/2012] [Accepted: 02/28/2013] [Indexed: 12/19/2022] Open
Abstract
Objective This study aims to compare liver function indices (aspartate aminotransferase [AST], alanine aminotransferase [ALT], and gamma glutamyl transferase [GGT]) among males who work with lead, organic solvents, or both lead and organic solvents, under the permissible exposure limit (PEL). Methods A total of 593 (out of 2,218) male workers who agreed to share their personal health information for medical research were selected for this study. Those excluded were hepatitis B carriers, individuals exposed to occupational risk factors other than lead and organic solvents, and individuals without liver function results. The 593 were divided into five groups: a lead-exposed group, an organic solvent-exposed group exposed to trichloroethylene (TCE co-exposed solvent group), an organic solvent-exposed group not exposed to trichloroethylene (TCE non-exposed solvent group), a lead and organic solvent-exposed group (mixed exposure group), and a non-exposed group (control group). We performed a one way-analysis of variance (one way-ANOVA) test to compare the geometric means of liver function indices among the groups, using a general linear model (GLM) to adjust for age, work duration, body mass index (BMI), smoking, and alcohol intake. In addition, we performed a binary logistic regression analysis to compare the odds ratios among groups with an abnormal liver function index, according to a cut-off value. Results The ALT and AST of the mixed exposure group were higher than those of the other groups. The GGT of the mixed exposure group was higher than the TCE co-exposed solvent group, but there was no difference among the control group, TCE non-exposed solvent group, lead-exposed group, and mixed exposure group. The same result was evident after adjusting by GLM for age, work duration, BMI, smoking, and alcohol intake, except that ALT from the mixed exposure group showed no difference from the TCE co-exposed solvent group. When the cut-off values of the AST, ALT, and GGT were 40 IU/L, 42 IU/L, and 63 IU/L, respectively, a logistic regression analysis showed no differences in the odds ratios of those who had an abnormal liver function index among the groups. However, if the cut-off values of the AST, ALT, and GGT were 30 IU/L, 30 IU/L, and 40 IU/L, respectively, the odds ratio of the AST in the mixed exposure group was 4.39 (95% CI 1.86-10.40) times higher than the control. Conclusion This study indicates that a mixed exposure to lead and organic solvents is dangerous, even if each single exposure is safe under the permissible exposure limit. Therefore, to ensure occupational health and safety in industry, a continuous efforts to study the effects from exposure to mixed chemicals is needed.
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Affiliation(s)
| | | | | | - Jong-Do Jeong
- Department of Occupational and Environmental Medicine, Pohang Sunlin Hospital, Pohang, South Korea.
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Lee CC, Park HY, Yoon JO, Lee KW. Correction of Wassel type IV thumb duplication with zigzag deformity: results of a new method of flexor pollicis longus tendon relocation. J Hand Surg Eur Vol 2013; 38:272-80. [PMID: 23023875 DOI: 10.1177/1753193412460809] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The purpose of this study is to present a treatment algorithm and a method of flexor pollicis longus tendon relocation for Wassel type IV thumb duplication with zigzag deformity. Forty-two thumbs in 42 patients were included in this study and the mean follow-up was 4 years. In addition to excision of the extra digit, tendon relocation and metacarpal and/or proximal phalangeal osteotomy were carried out, based on the degree of angulation at the metacarpophalangeal and interphalangeal joints. Tendon relocation was achieved using our pull-out suture technique. The results were assessed using an evaluation form for thumb polydactyly provided by the Japanese Society for Surgery of the Hand. At the time of latest clinical contact, eight cases were rated good, 31 cases fair, and three cases poor. It is useful to decide surgical procedures according to the degree of angulation of the metacarpophalangeal and interphalangeal joints and flexor pollicis longus tendon relocation is important to prevent malalignment at the interphalangeal joint.
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Affiliation(s)
- C C Lee
- Department of Orthopedic Surgery, Ulsan University Hospital, Ulsan, Republic of Korea
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Lee J, Baek JH, Choi KS, Kim HS, Park HY, Ha GH, Park H, Lee KW, Lee CG, Yang DY, Moon HE, Paek SH, Lee CW. Cyclin-dependent kinase 4 signaling acts as a molecular switch between syngenic differentiation and neural transdifferentiation in human mesenchymal stem cells. Cell Cycle 2013; 12:442-51. [PMID: 23324348 PMCID: PMC3587445 DOI: 10.4161/cc.23308] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Multipotent mesenchymal stem/stromal cells (MSCs) are capable of differentiating into a variety of cell types from different germ layers. However, the molecular and biochemical mechanisms underlying the transdifferentiation of MSCs into specific cell types still need to be elucidated. In this study, we unexpectedly found that treatment of human adipose- and bone marrow-derived MSCs with cyclin-dependent kinase (CDK) inhibitor, in particular CDK4 inhibitor, selectively led to transdifferentiation into neural cells with a high frequency. Specifically, targeted inhibition of CDK4 expression using recombinant adenovial shRNA induced the neural transdifferentiation of human MSCs. However, the inhibition of CDK4 activity attenuated the syngenic differentiation of human adipose-derived MSCs. Importantly, the forced regulation of CDK4 activity showed reciprocal reversibility between neural differentiation and dedifferentiation of human MSCs. Together, these results provide novel molecular evidence underlying the neural transdifferentiation of human MSCs; in addition, CDK4 signaling appears to act as a molecular switch from syngenic differentiation to neural transdifferentiation of human MSCs.
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Affiliation(s)
- Janet Lee
- Department of Molecular Cell Biology; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
- Samsung Biomedical Research Institute; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
| | - Jeong-Hwa Baek
- Department of Molecular Cell Biology; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
| | - Kyu-Sil Choi
- Samsung Biomedical Research Institute; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
| | - Hyun-Soo Kim
- Department of Molecular Cell Biology; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
- Samsung Biomedical Research Institute; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
| | - Hye-Young Park
- Department of Molecular Cell Biology; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
- Samsung Biomedical Research Institute; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
| | - Geun-Hyoung Ha
- Department of Molecular Cell Biology; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
- Samsung Biomedical Research Institute; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
| | - Ho Park
- Department of Molecular Cell Biology; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
- Department of Obstetrics and Gynecology; Kangbuk Samsung Hospital; Sungkyunkwan University School of Medicine; Seoul, Korea
| | - Kyo-Won Lee
- Department of Obstetrics and Gynecology; Kangbuk Samsung Hospital; Sungkyunkwan University School of Medicine; Seoul, Korea
| | - Chang Geun Lee
- Samsung Biomedical Research Institute; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
- Research Center; Dongnam Institute of Radiological and Medical Science; Pusan, Korea
| | | | - Hyo Eun Moon
- Department of Neurosurgery; College of Medicine; Seoul National University; Seoul, Korea
| | - Sun Ha Paek
- Department of Neurosurgery; College of Medicine; Seoul National University; Seoul, Korea
| | - Chang-Woo Lee
- Department of Molecular Cell Biology; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
- Samsung Biomedical Research Institute; Sungkyunkwan University School of Medicine; Suwon, Gyeonggi, Korea
- Samsung Advanced Institute for Health Sciences and Technology; Sungkyunkwan University; Suwon, Gyeonggi, Korea
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Hwang SO, Park HY, Jung JH, Kim WW, Lee YH, Lee JJ, Choi HH, Hwangbo SM. Abstract P1-01-24: Which combinations are helpful to predict axillary lymph node metastasis in T1 breast cancer with ultrasonography and contrast-enhanced MRI and contrast-enhanced 18F-FDG PET-CT? Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p1-01-24] [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: 11/16/2022]
Abstract
Abstract
Backgrounds: Axillary lymph node(ALN) status has been important factor of treatment and prognosis for patients with breast cancer. Even though the better ultrasonographic instruments have been developed, it is still difficult to predict axillary lymh node metastasis (ALNM) with only ultrasonography(US) in T1 breast cancers which most of newly diagnosed breast cancers are recently since T1 breast cancers have low rate and less tumor burden of ALNM. This study evaluated the accuracy of prediction of ALNM in T1 breast cancer with US, contrast-enhanced MRI (cMRI) and contrast-enhanced 18F-FDG PET/CT (cPET/CT) and found out adequate combinations of these modalities.
Method: Retrospectively, we reviewed 351 breast cancer patients with tumors(T1) ≤2cm in size between January 2008 and December 2011 who were preoperatively examined with US, cMRI, and cPET/CT and underwent pathologic evaluation of axillary lymph nodes acquired by sentinel lymph node biopsy or axillary dissection.
Results: 94(26.8%) patients of 351 had ALNM. The sensitivity, specificity, positive predictive value(PPV), negative predictive value (NPV), and accuracy of ALNM with US were 0.457, 0.887, 0.597, 0.817, 0.772, respectively. cMRI had similar results with US. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of ALNM with cPET/CT were 0.447, 0.942, 0.737, 0.823, 0.809, respectively. The sensitivity if any one or more modalities were suspicious was 0.563. The specificity if all modalities were suspicious was 0.992. The PPV if cMRI and cPET/CT were suspicious was highest than if other combinations were suspicious.
Conclusion: US, cMRI, and cPET/CT are helpful in prediction of ALNM of T1 breast cancers. However, there are no definite modality and combination of modalites to predict ALNM of T1 breast cancers.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P1-01-24.
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Affiliation(s)
- SO Hwang
- Kyungpook National University School of Medicine, Daegu, Korea; Hyosung Hospital, Daegu, Korea
| | - HY Park
- Kyungpook National University School of Medicine, Daegu, Korea; Hyosung Hospital, Daegu, Korea
| | - JH Jung
- Kyungpook National University School of Medicine, Daegu, Korea; Hyosung Hospital, Daegu, Korea
| | - WW Kim
- Kyungpook National University School of Medicine, Daegu, Korea; Hyosung Hospital, Daegu, Korea
| | - YH Lee
- Kyungpook National University School of Medicine, Daegu, Korea; Hyosung Hospital, Daegu, Korea
| | - JJ Lee
- Kyungpook National University School of Medicine, Daegu, Korea; Hyosung Hospital, Daegu, Korea
| | - HH Choi
- Kyungpook National University School of Medicine, Daegu, Korea; Hyosung Hospital, Daegu, Korea
| | - SM Hwangbo
- Kyungpook National University School of Medicine, Daegu, Korea; Hyosung Hospital, Daegu, Korea
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Ha TS, Choi JY, Park HY. Puromycin aminonucleoside modulates p130Cas of podocytes. Korean J Pediatr 2012; 55:371-6. [PMID: 23133483 PMCID: PMC3488612 DOI: 10.3345/kjp.2012.55.10.371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 04/18/2012] [Accepted: 07/09/2012] [Indexed: 01/25/2023]
Abstract
PURPOSE Puromycin aminonucleoside (PAN) specifically injures podocytes, leading to foot process effacement, actin cytoskeleton disorganization, and abnormal distribution of slit diaphragm proteins. p130Cas is a docking protein connecting F-actin fibers to the glomerular basement membrane (GBM) and adapter proteins in glomerular epithelial cells (GEpCs; podocytes). We investigated the changes in the p130Cas expression level in the PAN-induced pathological changes of podocytes in vitro. METHODS We observed changes in the p130Cas expression in cultured rat GEpCs and mouse podocytes treated with various concentrations of PAN and antioxidants, including probucol, epigallocatechin gallate (EGCG), and vitamin C. The changes in the p130Cas expression level were analyzed using confocal immunofluorescence imaging, Western blotting, and polymerase chain reaction. RESULTS In the immunofluorescence study, p130Cas showed a diffuse cytoplasmic distribution with accumulation at distinct sites visible as short stripes and colocalized with P-cadherin. The fluorescences of the p130Cas protein were internalized and became granular by PAN administration in a dose-dependent manner, which had been restored by antioxidants, EGCG and vitamin C. PAN also decreased the protein and mRNA expression levels of p130Cas at high doses and in a longer exposed duration, which had been also reversed by antioxidants. CONCLUSION These findings suggest that PAN modulates the quantitative and distributional changes of podocyte p130Cas through oxidative stress resulting in podocyte dysfunction.
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Affiliation(s)
- Tae-Sun Ha
- Department of Pediatrics, Chungbuk National University College of Medicine, Cheongju, Korea. ; Postgraduate School, Chungbuk National University College of Medicine, Cheongju, Korea
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Lee JS, Park HY, Choi JY, Nam JA, Ha TS. Ginseng total saponin regulates podocyte P-cadherin/β-catenin unit in diabetic condition. J Biomed Res 2012. [DOI: 10.12729/jbr.2012.13.3.249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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