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Jo JH, Park SB, Chung J, Oh T, Lee HS, Chung MJ, Park JY, Bang S, Park SW, Jung DE, Song SY. Transgelin-2, a novel cancer stem cell-related biomarker, is a diagnostic and therapeutic target for biliary tract cancer. BMC Cancer 2024; 24:357. [PMID: 38509504 PMCID: PMC10953140 DOI: 10.1186/s12885-024-12082-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 03/04/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Biliary tract cancer (BTC) is a relatively rare but aggressive gastrointestinal cancer with a high mortality rate. Cancer stem cell (CSC) populations play crucial roles in tumor biology and are responsible for the low response to anti-cancer treatment and the high recurrence rate. This study investigated the role of Transgelin-2 (TAGLN2), overexpressed in CSC in BTC cells, and analyzed its expression in patient tissues and serum to identify potential new targets for BTC. METHODS TAGLN2 expression was suppressed by small-interfering or short hairpin RNAs, and its effects on tumor biology were assessed in several BTC cell lines. Furthermore, the effects of TAGLN2 silencing on gemcitabine-resistant BTC cells, differentially expressed genes, proteins, and sensitivity to therapeutics or radiation were assessed. TAGLN2 expression was also assessed using western blotting and immunohistochemistry in samples obtained from patients with BTC to validate its clinical application. RESULTS Suppression of TAGLN2 in BTC cell lines decreased cell proliferation, migration, invasion, and tumor size, in addition to a reduction in CSC features, including clonogenicity, radioresistance, and chemoresistance. TAGLN2 was highly expressed in BTC tissues, especially in cancer-associated fibroblasts in the stroma. Patients with a low stromal immunohistochemical index had prolonged disease-free survival compared to those with a high stromal immunohistochemical index (11.5 vs. 7.4 months, P = 0.013). TAGLN2 expression was higher in the plasma of patients with BTC than that in those with benign diseases. TAGLN2 had a higher area under the curve (0.901) than CA19-9, a validated tumor biomarker (0.799; P < 0.001). CONCLUSION TAGLN2 plays a critical role in promoting BTC cell growth and motility and is involved in regulating BTC stemness. Silencing TAGLN2 expression enhanced cell sensitivity to radiation and chemotherapeutic drugs. The expression of TAGLN2 in patient tissue and plasma suggests its potential to serve as a secretory biomarker for BTC. Overall, targeting TAGLN2 could be an appropriate therapeutic strategy against advanced cancer following chemotherapy failure.
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Affiliation(s)
- Jung Hyun Jo
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Joowon Chung
- Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea
| | - Taeyun Oh
- Cowell Biodigm Co., Ltd., Seoul, Korea
| | - Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Moon Jae Chung
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong Youp Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Seungmin Bang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Woo Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Dawoon E Jung
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
- Cowell Biodigm Co., Ltd., Seoul, Korea.
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.
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Lee HS, Jung EH, Shin H, Park CS, Park SB, Jung DE, Leem G, Kim SJ, Jo JH, Chung MJ, Park JY, Bang S, Park SW, Song SY. Phenotypic characteristics of circulating tumor cells and predictive impact for efficacy of chemotherapy in patients with pancreatic cancer: a prospective study. Front Oncol 2023; 13:1206565. [PMID: 37736542 PMCID: PMC10509470 DOI: 10.3389/fonc.2023.1206565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 08/14/2023] [Indexed: 09/23/2023] Open
Abstract
Objective Early chemoresistance and tumor mass progression are associated with poor prognosis in pancreatic ductal adenocarcinoma (PDAC). Circulating tumor cells (CTCs) have been studied as potential predictors of treatment response and prognosis in PDAC; however, this approach has yet to be applied in clinical practice. The aim of our study was to investigate the phenotypic characteristics of CTCs and determine their predictive value for PDAC progression. Methods We prospectively enrolled 40 patients who were pathologically diagnosed with PDAC and collected blood samples at diagnosis, 2 months after diagnosis, and during disease progression or recurrence. We used a microfabricated filter-based enrichment system to retrieve and analyze CTCs, which were classified using immunofluorescence staining (CD45, EpCAM, and vimentin). Results Our study included 20 women and 20 men (median age, 66 years). Overall, 45% of the patients (18/40) had disseminated disease, and 77.5% (31/40) received chemotherapy. Multivariate analysis revealed that the total CTC count and carbohydrate antigen 19-9 level at 2 months after diagnosis were associated with disease progression (P<0.05). Linear mixed model analysis revealed that the total CTC count and vimentin-positive CTCs were significantly correlated with treatment response during chemotherapy (P=0.024 and 0.017, respectively). Kaplan-Meier analysis showed that total CTC positivity at 2 months was significantly associated with poor progression-free survival (P=0.038). Conclusion Our study's findings suggest that CTCs can serve as predictive biomarkers of clinical outcomes in patients with PDAC receiving palliative chemotherapy. In particular, the total CTC count and vimentin-positive CTCs showed changes associated with the chemotherapy response.
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Affiliation(s)
- Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Hye Jung
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyejung Shin
- Biostatistics Collaboration Unit, Medical Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chan Su Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dawoon E. Jung
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Galam Leem
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - So Jung Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Hyun Jo
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Moon Jae Chung
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jeong Youp Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seungmin Bang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Woo Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
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Jo JH, Jung DE, Lee HS, Park SB, Chung MJ, Park JY, Bang S, Park SW, Cho S, Song SY. A phase I/II study of ivaltinostat combined with gemcitabine and erlotinib in patients with untreated locally advanced or metastatic pancreatic adenocarcinoma. Int J Cancer 2022; 151:1565-1577. [PMID: 35657348 PMCID: PMC9545559 DOI: 10.1002/ijc.34144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/12/2022] [Accepted: 04/27/2022] [Indexed: 12/03/2022]
Abstract
This phase I/II study evaluated the safety and efficacy of a new histone deacetylase (HDAC) inhibitor, ivaltinostat, in combination with gemcitabine and erlotinib for advanced pancreatic ductal adenocarcinoma (PDAC). Patients diagnosed with unresectable, histologically confirmed PDAC who had not undergone previous therapy were eligible. Phase I had a 3 + 3 dose escalation design to determine the maximum tolerable dose (MTD) of ivaltinostat (intravenously on days 1, 8 and 15) with gemcitabine (1000 mg/m2 intravenously on days 1, 8 and 15) and erlotinib (100 mg/day, orally) for a 28-day cycle. In phase II, patients received a six-cycle treatment with the MTD of ivaltinostat determined in phase I. The primary endpoint was the objective response rate (ORR). Secondary endpoints included overall survival (OS), disease control rate (DCR) and progression-free survival (PFS). The MTD of ivaltinostat for the phase II trial was determined to be 250 mg/m2 . In phase II, 24 patients were enrolled. The median OS and PFS were 8.6 (95% confidence interval [CI]: 5.3-11.2) and 5.3 months (95% CI: 3.7-5.8). Of the 16 patients evaluated for response, ORR and DCR were 25.0% and 93.8% with a median OS/PFS of 10.8 (95% CI: 8.3-16.7)/5.8 (95% CI: 4.6-6.7) months. Correlative studies showed that mutation burden detected by cfDNA and specific blood markers such as TIMP1, pro-MMP10, PECAM1, proMMP-2 and IGFBP1 were associated with clinical outcomes. Although the result of a small study, a combination of ivaltinostat, gemcitabine and erlotinib appeared to be a potential treatment option for advanced PDAC.
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Affiliation(s)
- Jung Hyun Jo
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
| | - Dawoon E. Jung
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
| | - Hee Seung Lee
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
| | - Moon Jae Chung
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
| | - Jeong Youp Park
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
| | - Seungmin Bang
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
| | - Seung Woo Park
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
| | - Sangsook Cho
- CG PharmaceuticalsOrindaCaliforniaUSA
- CrystalGenomicsSeongnamsi, GyeonggidoSouth Korea
| | - Si Young Song
- Division of Gastroenterology, Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea
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Menant JC, Goldstein D, Au K, Trinh T, van Schooten KS, McCrary JM, Harris CA, Forster BC, Park SB. Corrigendum to "Evidence of slow and variable choice-stepping reaction time in cancer survivors with chemotherapy-induced peripheral neuropathy" [Gait Posture 89 (2021) 178-185]. Gait Posture 2022; 92:1. [PMID: 34801950 DOI: 10.1016/j.gaitpost.2021.11.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- J C Menant
- Neuroscience Research Australia, University of New South Wales, New South Wales, Australia; School of Population Health, University of New South Wales, New South Wales, Australia.
| | - D Goldstein
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia; Dept. of Medical Oncology, Prince of Wales Hospital, Randwick, Australia
| | - K Au
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia
| | - T Trinh
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia
| | - K S van Schooten
- Neuroscience Research Australia, University of New South Wales, New South Wales, Australia; School of Population Health, University of New South Wales, New South Wales, Australia
| | - J M McCrary
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia; Institute of Music Physiology and Musicians' Medicine, Hannover University of Music Drama, and Media, Hannover, Germany
| | - C A Harris
- Dept. of Medical Oncology, St George Hospital, Kogarah, Australia; St George and Sutherland Clinical School, University of New South Wales, Australia
| | - B C Forster
- Dept. of Medical Oncology, The Mater Hospital, North Sydney, Australia; Northern Clinical School, The University of Sydney, St Leonards, New South Wales, Australia
| | - S B Park
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia; Brain and Mind Centre, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
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Jo JH, Kim SA, Lee JH, Park YR, Kim C, Park SB, Jung DE, Lee HS, Chung MJ, Song SY. GLRX3, a novel cancer stem cell-related secretory biomarker of pancreatic ductal adenocarcinoma. BMC Cancer 2021; 21:1241. [PMID: 34794402 PMCID: PMC8603516 DOI: 10.1186/s12885-021-08898-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 10/13/2021] [Indexed: 12/02/2022] Open
Abstract
Background Cancer stem cells (CSCs) are implicated in carcinogenesis, cancer progression, and recurrence. Several biomarkers have been described for pancreatic ductal adenocarcinoma (PDAC) CSCs; however, their function and mechanism remain unclear. Method In this study, secretome analysis was performed in pancreatic CSC-enriched spheres and control adherent cells for biomarker discovery. Glutaredoxin3 (GLRX3), a novel candidate upregulated in spheres, was evaluated for its function and clinical implication. Results PDAC CSC populations, cell lines, patient tissues, and blood samples demonstrated GLRX3 overexpression. In contrast, GLRX3 silencing decreased the in vitro proliferation, migration, clonogenicity, and sphere formation of cells. GLRX3 knockdown also reduced tumor formation and growth in vivo. GLRX3 was found to regulate Met/PI3K/AKT signaling and stemness-related molecules. ELISA results indicated GLRX3 overexpression in the serum of patients with PDAC compared to that in healthy controls. The sensitivity and specificity of GLRX3 for PDAC diagnosis were 80.0 and 100%, respectively. When GLRX3 and CA19–9 were combined, sensitivity was significantly increased to 98.3% compared to that with GLRX3 or CA19–9 alone. High GLRX3 expression was also associated with poor disease-free survival in patients receiving curative surgery. Conclusion Overall, these results indicate GLRX3 as a novel diagnostic marker and therapeutic target for PDAC targeting CSCs. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08898-y.
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Affiliation(s)
- Jung Hyun Jo
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Sun A Kim
- Cowell Biodigm Co., Ltd, Seoul, South Korea
| | - Jeong Hoon Lee
- Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Yu Rang Park
- Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Chanyang Kim
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Soo Been Park
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Dawoon E Jung
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Moon Jae Chung
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea. .,Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, 03722, South Korea.
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Menant JC, Goldstein D, Au K, Trinh T, van Schooten KS, McCrary JM, Harris CA, Forster BC, Park SB. Evidence of slow and variable choice-stepping reaction time in cancer survivors with chemotherapy-induced peripheral neuropathy. Gait Posture 2021; 89:178-185. [PMID: 34320441 DOI: 10.1016/j.gaitpost.2021.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/21/2021] [Accepted: 07/17/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Chemotherapy-induced peripheral neuropathy (CIPN) is reported to affect up to 70 % of cancer survivors. Despite evidence that CIPN-related impairments often translate into balance and mobility deficits, the effects on stepping and quality of gait, well-documented risk factors for falls, are unclear. AIMS (i) Establish choice-stepping reaction time (CSRT) performance in survivors with CIPN compared to young and older healthy controls and people with Parkinson's disease; (ii) document walking stability; (iii) investigate relationships between stepping and gait data to objective and patient-reported outcomes. METHODS 41 cancer survivors with CIPN (mean (SD) age: 60.8 (9.7) years) who were ≥3months post chemotherapy, performed tests of simple and inhibitory CSRT. Walking stability measures were derived from 3-D accelerometry data during the 6-minute walk test. CIPN was assessed using neurological grading and patient-reported outcome measures (European Organization for Research and Treatment of Cancer Quality of Life Questionnaire in CIPN Questionnaire scale EORTC CIPN20). RESULTS In both stepping tests, CIPN participants performed at the level of adults aged 10 years older and people with mild to moderate Parkinson's disease. Mean (SD) total stepping response times in both CSRT (1160 (190) milliseconds) and inhibitory CSRT (1191 (164) milliseconds) tests were not associated with objective neurological grading but were correlated with increased difficulty feeling the ground. Participants with lower-limb vibration sensation deficit had slower and more variable CSRT times. There were no associations between walking stability and objective measures of CIPN, and limited correlations with the EORTC-CIPN20. CONCLUSIONS Cancer survivors with CIPN showed deficits in voluntary stepping responses and seemed to compensate for their sensory and motor deficits by walking slower to maintain stability. Objective and patient-reported outcomes of CIPN were correlated with slower and more variable stepping response times. Future studies should aim to identify the causes of the apparent premature decline in cognitive-motor function and develop remediating interventions.
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Affiliation(s)
- J C Menant
- Neuroscience Research Australia, University of New South Wales, New South Wales, Australia; School of Population Health, University of New South Wales, New South Wales, Australia.
| | - D Goldstein
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia; Dept. of Medical Oncology, Prince of Wales Hospital, Randwick, Australia
| | - K Au
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia
| | - T Trinh
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia
| | - K S van Schooten
- Neuroscience Research Australia, University of New South Wales, New South Wales, Australia; School of Population Health, University of New South Wales, New South Wales, Australia
| | - J M McCrary
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia; Institute of Music Physiology and Musicians' Medicine, Hannover University of Music Drama, and Media, Hannover, Germany
| | - C A Harris
- Dept. of Medical Oncology, St George Hospital, Kogarah, Australia; St George and Sutherland Clinical School, University of New South Wales, Australia
| | - B C Forster
- Dept. of Medical Oncology, The Mater Hospital, North Sydney, Australia; Northern Clinical School, The University of Sydney, St Leonards, New South Wales, Australia
| | - S B Park
- Prince of Wales Clinical School, University of New South Wales, Kensington, Australia; Brain and Mind Centre, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
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Kim YN, Jung JH, Park SB. Changes in high-sensitivity C-reactive protein levels and metabolic indices according to grip strength in Korean postmenopausal women. Climacteric 2021; 25:306-310. [PMID: 34423694 DOI: 10.1080/13697137.2021.1965116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE This study aimed to investigate the changes in high-sensitivity C-reactive protein (hs-CRP) level and metabolic indices such as blood pressure, serum lipid level and serum glucose level according to grip strength in postmenopausal women. METHOD Data from participants (postmenopausal women) in the Seventh Korea National Health and Nutrition Examination Survey 2018 were analyzed. Absolute handgrip strength was the sum of the maximal grip strength of both hands, and relative handgrip was calculated as absolute handgrip divided by the body mass index. We performed linear regression analysis after adjusting for confounders to assess the influence of grip strength on hs-CRP level and metabolic indices. RESULTS Linear regression analysis showed that after adjusting for confounders, with an increased absolute grip strength, systolic blood pressure and hs-CRP levels were decreased; however, the changes were not significant for the remaining indices. Relative grip strength was associated with hs-CRP levels and metabolic indices. With a high relative grip strength, hs-CRP, blood pressure, fasting blood glucose, hemoglobin A1c and triglyceride levels were decreased, while the high-density lipoprotein cholesterol level was increased. CONCLUSION Our study evaluated the overall health status using grip strength in postmenopausal women. The grip strength adjusted by body size was suitable in evaluating the overall health status, including inflammatory and metabolic indices. Additionally, increased grip strength was associated with a better health status in postmenopausal women.
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Affiliation(s)
- Y N Kim
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J-H Jung
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Republic of Korea
| | - S B Park
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Republic of Korea
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Lee J, Lee HS, Park SB, Kim C, Kim K, Jung DE, Song SY. Identification of Circulating Serum miRNAs as Novel Biomarkers in Pancreatic Cancer Using a Penalized Algorithm. Int J Mol Sci 2021; 22:ijms22031007. [PMID: 33498271 PMCID: PMC7863930 DOI: 10.3390/ijms22031007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/10/2021] [Accepted: 01/15/2021] [Indexed: 12/16/2022] Open
Abstract
Pancreatic cancer (PC) is difficult to detect in the early stages; thus, identifying specific and sensitive biomarkers for PC diagnosis is crucial, especially in the case of early-stage tumors. Circulating microRNAs are promising non-invasive biomarkers. Therefore, we aimed to identify non-invasive miRNA biomarkers and build a model for PC diagnosis. For the training model, blood serum samples from 63 PC patients and 63 control subjects were used. We selected 39 miRNA markers using a smoothly clipped absolute deviation-based penalized support vector machine and built a PC diagnosis model. From the double cross-validation, the average test AUC was 0.98. We validated the diagnosis model using independent samples from 25 PC patients and 81 patients with intrahepatic cholangiocarcinoma (ICC) and compared the results with those obtained from the diagnosis using carbohydrate antigen 19-9. For the markers miR-155-5p, miR-4284, miR-346, miR-7145-5p, miR-5100, miR-661, miR-22-3p, miR-4486, let-7b-5p, and miR-4703-5p, we conducted quantitative reverse transcription PCR using samples from 17 independent PC patients, 8 ICC patients, and 8 healthy individuals. Differential expression was observed in samples from PC patients. The diagnosis model based on the identified markers showed high sensitivity and specificity for PC detection and is potentially useful for early PC diagnosis.
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Affiliation(s)
- Jaehoon Lee
- Department of Statistics, Seoul National University, Seoul 08733, Korea;
| | - Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea; (H.S.L.); (S.B.P.); (C.K.); (K.K.)
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea; (H.S.L.); (S.B.P.); (C.K.); (K.K.)
| | - Chanyang Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea; (H.S.L.); (S.B.P.); (C.K.); (K.K.)
| | - Kahee Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea; (H.S.L.); (S.B.P.); (C.K.); (K.K.)
| | - Dawoon E. Jung
- Institute of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea
- Correspondence: (D.E.J.); (S.Y.S.); Tel.: +82-2-2228-0908 (D.E.J.); +82-2-2228-1957 (S.Y.S.)
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea; (H.S.L.); (S.B.P.); (C.K.); (K.K.)
- Institute of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea
- Correspondence: (D.E.J.); (S.Y.S.); Tel.: +82-2-2228-0908 (D.E.J.); +82-2-2228-1957 (S.Y.S.)
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Kim MS, Lee S, Park SB, Kim KY, Kim Y, Kang HY, Park SG, Kang NG. Magnolol induces adipogenic differentiation in human skin. Br J Dermatol 2020; 183:584-586. [PMID: 32248517 DOI: 10.1111/bjd.19063] [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: 11/29/2022]
Affiliation(s)
- M S Kim
- R&D Center, LG Household & Healthcare, Seoul, Korea
| | - S Lee
- R&D Center, LG Household & Healthcare, Seoul, Korea
| | - S B Park
- Bio Platform Technology Research Center, Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon, Korea
| | - K Y Kim
- Bio Platform Technology Research Center, Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon, Korea
| | - Y Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - H Y Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - S G Park
- R&D Center, LG Household & Healthcare, Seoul, Korea
| | - N G Kang
- R&D Center, LG Household & Healthcare, Seoul, Korea
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10
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Kandula T, Farrar MA, Cohn RJ, Carey KA, Johnston K, Kiernan MC, Krishnan AV, Park SB. Changes in long term peripheral nerve biophysical properties in childhood cancer survivors following neurotoxic chemotherapy. Clin Neurophysiol 2020; 131:783-790. [PMID: 32066096 DOI: 10.1016/j.clinph.2019.12.411] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 11/14/2019] [Accepted: 12/07/2019] [Indexed: 12/28/2022]
Abstract
OBJECTIVE In the context of increasing numbers of childhood cancer survivors (CCS), this study aimed to enhance understanding of the biophysical basis for long term chemotherapy induced peripheral neuropathy from different chemotherapy agents in CCS. METHODS Detailed cross-sectional neurophysiological examination, using median nerve axonal excitability studies, alongside clinical assessments, in 103 long term CCS (10.5 ± 0.6 years post-treatment). RESULTS Cisplatin treated CCS (n = 16) demonstrated multiple sensory axonal excitability changes including increased threshold (P < 0.05), alterations in depolarising and hyperpolarising threshold electrotonus (P < 0.05) and reduction in resting and minimum IV slope (P < 0.01). Vincristine treated CCS (n = 73) were comparable to controls, except for prolonged distal motor latency (P = 0.001). No differences were seen in the non-neurotoxic chemotherapy group (n = 14). Abnormalities were more evident in the cisplatin subgroup with greater clinical neuropathy manifestations. CONCLUSION Persistent long term changes in axonal biophysical properties vary with different chemotherapy agents, most evident after cisplatin exposure. Longitudinal studies of nerve function during chemotherapy treatment are required to further evaluate these differences and their mechanistic basis. SIGNIFICANCE This study provides a unique biophysical perspective for persistent cisplatin related neurotoxicity in children, previously under recognised.
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Affiliation(s)
- T Kandula
- School of Women's and Children's Health, UNSW Medicine, UNSW Sydney, Australia; Department of Neurology, Sydney Children's Hospital, Australia
| | - M A Farrar
- School of Women's and Children's Health, UNSW Medicine, UNSW Sydney, Australia; Department of Neurology, Sydney Children's Hospital, Australia
| | - R J Cohn
- Kids Cancer Centre, Sydney Children's Hospital, Australia
| | - K A Carey
- School of Women's and Children's Health, UNSW Medicine, UNSW Sydney, Australia
| | - K Johnston
- Kids Cancer Centre, Sydney Children's Hospital, Australia
| | - M C Kiernan
- Brain & Mind Centre, University of Sydney, Australia
| | - A V Krishnan
- Prince of Wales Clinical School, UNSW Medicine, UNSW Sydney, Australia
| | - S B Park
- Brain & Mind Centre, University of Sydney, Australia; Prince of Wales Clinical School, UNSW Medicine, UNSW Sydney, Australia.
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11
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Ishak GM, Dutra GA, Gastal GDA, Elcombe ME, Gastal MO, Park SB, Feugang JM, Gastal EL. Deficiency in proliferative, angiogenic, and LH receptors in the follicle wall: implications of season toward the anovulatory condition. Domest Anim Endocrinol 2020; 70:106382. [PMID: 31585312 DOI: 10.1016/j.domaniend.2019.07.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 06/12/2019] [Accepted: 07/24/2019] [Indexed: 01/22/2023]
Abstract
This study aimed to gain insight on the effect of different seasons of the year on the expression pattern of growth factor and hormone receptors involved in follicle development. A novel follicle wall biopsy technique was used to collect in vivo follicle wall layers (ie, granulosa, theca interna, and theca externa) and follicular fluid samples from growing dominant follicles, simultaneously and repeatedly, using the same mares during the spring anovulatory (SAN), spring ovulatory (SOV), summer (SU), and fall ovulatory (FOV) seasons. The immunofluorescent expression patterns of epidermal growth factor receptor (EGFR), Ki-67, vascular endothelial growth factor receptor (VEGFR), and LH receptor (LHR) were evaluated in each follicle wall layer, in addition to intrafollicular estradiol and nitric oxide (NO). Proliferative proteins (EGFR and Ki-67) were highly (P < 0.05-P < 0.001) expressed during the SOV season compared with the SAN and FOV seasons. Lower (P < 0.05-P < 0.001) expression of both proteins was observed during SU compared with the SOV season. The expression of VEGFR was greater (P < 0.05-P < 0.01) in the theca interna of dominant follicles during the SOV season compared with the SAN and SU seasons. Similarly, in the overall quantification, the VEGFR expression was greater (P < 0.001) during the SOV season compared with the SU and FOV seasons. A higher (P < 0.05) LHR expression was detected in the theca interna during the SOV season than the SAN season. Furthermore, a higher (P < 0.05-P < 0.001) expression of LHR was observed in the granulosa, theca interna, and in the overall quantification during the SOV season compared with the SU and FOV seasons. Intrafollicular NO concentration did not differ (P > 0.05) among different seasons of the year. The intrafollicular estradiol concentration was higher (P < 0.05) during the SU compared with the SAN season and higher (P < 0.05) during the FOV season compared with the SAN and SOV seasons. In conclusion, the synergistic effect of lower expression of proliferative protein, angiogenic, and LH receptors in at least some of the layers of the follicle wall seems to trigger dominant follicles toward the anovulation process during the spring and fall transitional seasons.
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Affiliation(s)
- G M Ishak
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA; Department of Surgery and Obstetrics, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq
| | - G A Dutra
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - G D A Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - M E Elcombe
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - M O Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - S B Park
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, USA
| | - J M Feugang
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS, USA
| | - E L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA.
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12
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Ko A, Park HJ, Lee ES, Park SB, Kim YK, Choi SY, Ahn S. Comparison of the diagnostic performance of the 2017 and 2018 versions of LI-RADS for hepatocellular carcinoma on gadoxetic acid enhanced MRI. Clin Radiol 2019; 75:319.e1-319.e9. [PMID: 31858990 DOI: 10.1016/j.crad.2019.11.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 11/13/2019] [Indexed: 12/18/2022]
Abstract
AIM To compare the diagnostic performance of the 2017 (v2017) and 2018 versions (v2018) of the Liver Imaging-Reporting and Data System (LI-RADS) for hepatocellular carcinoma (HCC) using gadoxetic acid-enhanced magnetic resonance imaging (Gd-EOB-MRI) and to evaluate the effect in v2018. MATERIALS AND METHODS Treatment-naive patients at high-risk for HCC who underwent Gd-EOB-MRI were included. The LI-RADS categories were assigned according to v2017 and v2018. The diagnostic performances were compared between v2017 and v2018 according to the size and combination of imaging features. RESULTS A total of 117 patients with 137 observations were identified, including 89 HCCs; 76.2% (64/84) of observations with threshold growth were re-classified as subthreshold growth when using v2018 instead of v2017. The final categories changed in nine (14%) cases. For the combination of LR-5/LR-5V, there were no significant differences in sensitivity and specificity between the two versions (sensitivity, 64% versus 58.4%; specificity, 87.5% versus 85.4%; all p>0.05). For the combination of LR-4 and LR-5/5V, the diagnostic performance of v2018 was inferior to that of v2017 when considering only major features (accuracy, 86.1% versus 80.3%, respectively; p=0.013), particularly in observations measuring 10-20 mm, but was comparable after adding the ancillary features (accuracy, 86.9% versus 86.1%, respectively; p=1.00). CONCLUSION In LI-RADS v2018, although a considerable number of observations re-classified subthreshold growth, changes in the assigned categories were insignificant; overall diagnostic performance was comparable to that of v2017, but v2018 might emphasise the value of ancillary features in combination with major features for determining the probability of HCC.
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Affiliation(s)
- A Ko
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - H J Park
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea.
| | - E S Lee
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - S B Park
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - Y K Kim
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-Y Choi
- Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - S Ahn
- Department of Mathematics, Ajou University, Suwon, Republic of Korea
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13
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Park SB, Jo JH, Kim C, Lee HS, Jung DE, Song SY. Abstract 4687: Gastric cancer stem cell-related marker LINGO2 is associated with cancer phenotype and poor patient survival. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-4687] [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
The expression of leucine-rich repeat and immunoglobulin-like domain-containing nogo receptor-interacting protein 2 (LINGO2), has been reported in Parkinson’s disease; however, its role in other diseases is unknown. Gastric cancer is the second leading cause of cancer death. Cancer stem cells (CSC) are a subpopulation of cancer cells that contribute to the initiation and invasion of cancer. We identified LINGO2 as a CSC-associated protein in gastric cancers both in vitro and in patient-derived tissues. We studied the effect of LINGO2 on cell motility, stemness, and tumorigenicity using cells sorted based on LINGO2 expression and LINGO2-silenced cells. Tissue microarray analysis showed that LINGO2 expression was significantly elevated in advanced gastric cancers. The overall survival of patients expressing high LINGO2 was significantly shorter than that of patients with low LINGO2. Cells expressing high LINGO2 showed elevated cell motility and tumorigenicity while LINGO2 silencing reversed these properties. Silencing LINGO2 reduced AKT/MEK/ERK phosphorylation and decreased EMT-associated markers - N-cadherin and Vimentin and stemness-associated markers - OCT4 and IHH. These indicate the involvement of LINGO2 in gastric cancer initiation and progression by altering cell motility, stemness, and tumorigenicity, suggesting LINGO2 as a putative target for gastric cancer treatment.
Citation Format: Soo Been Park, Jung Hyun Jo, Chanyang Kim, Hee Seung Lee, Dawoon E. Jung, Si Young Song. Gastric cancer stem cell-related marker LINGO2 is associated with cancer phenotype and poor patient survival [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 4687.
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Affiliation(s)
- Soo Been Park
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Jung Hyun Jo
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Chanyang Kim
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Hee Seung Lee
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Dawoon E. Jung
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Si Young Song
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
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Kim K, Yoo D, Lee HS, Lee KJ, Park SB, Kim C, Jo JH, Jung DE, Song SY. Identification of potential biomarkers for diagnosis of pancreatic and biliary tract cancers by sequencing of serum microRNAs. BMC Med Genomics 2019; 12:62. [PMID: 31096984 PMCID: PMC6524273 DOI: 10.1186/s12920-019-0521-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 05/07/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Pancreatic and biliary tract cancer (PC and BTC, respectively) are difficult to diagnose because of their clinical characteristics; however, recent studies suggest that serum microRNAs (miRNAs) might be the key to developing more efficient diagnostic methods for these cancers. METHODS We analysed the genome-wide expression of serum miRNAs in PC and BTC patients to identify novel biomarker candidates using high-throughput sequencing and experimentally validated miRNAs on clinical samples. RESULTS Statistical and classification analysis of the serum miRNA-expression profiles of 55 patient samples showed distinguishable patterns between cancer patients and healthy controls; however, we were unable to distinguish the two cancers. We found that three of the highest performing miRNAs were capable of distinguishing cancer patients from controls, with an accuracy of 92.7%. Additionally, dysregulation of these three cancer-specific miRNAs was demonstrated in an independent sample group by quantitative reverse transcription polymerase chain reaction. CONCLUSIONS These results suggested three candidate serum miRNAs (mir-744-5p, mir-409-3p, and mir-128-3p) as potential biomarkers for PC and BTC diagnosis.
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Affiliation(s)
- Kwondo Kim
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, Republic of Korea.,C&K genomics, C-1008, H businesspark, 26, Beobwon-ro 9-gil, Songpa-gu, Seoul, Republic of Korea
| | - DongAhn Yoo
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, Republic of Korea.,C&K genomics, C-1008, H businesspark, 26, Beobwon-ro 9-gil, Songpa-gu, Seoul, Republic of Korea
| | - Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Kyong Joo Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Chanyang Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Jung Hyun Jo
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.,Division of Gastroenterology, Department of Internal Medicine, Hallym University Hangang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Dawoon E Jung
- Institute of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea. .,Institute of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.
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15
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Garg N, Park SB, Howells J, Vucic S, Yiannikas C, Mathey EK, Nguyen T, Noto Y, Barnett MH, Krishnan AV, Spies J, Bostock H, Pollard JD, Kiernan MC. Conduction block in immune-mediated neuropathy: paranodopathy versus axonopathy. Eur J Neurol 2019; 26:1121-1129. [PMID: 30882969 DOI: 10.1111/ene.13953] [Citation(s) in RCA: 15] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 03/11/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND PURPOSE Conduction block is a pathognomonic feature of immune-mediated neuropathies. The aim of this study was to advance understanding of pathophysiology and conduction block in chronic inflammatory demyelinating polyneuropathy (CIDP) and multifocal motor neuropathy (MMN). METHODS A multimodal approach was used, incorporating clinical phenotyping, neurophysiology, immunohistochemistry and structural assessments. RESULTS Of 49 CIDP and 14 MMN patients, 25% and 79% had median nerve forearm block, respectively. Clinical scores were similar in CIDP patients with and without block. CIDP patients with median nerve block demonstrated markedly elevated thresholds and greater threshold changes in threshold electrotonus, whilst those without did not differ from healthy controls in electrotonus parameters. In contrast, MMN patients exhibited marked increases in superexcitability. Nerve size was similar in both CIDP groups at the site of axonal excitability. However, CIDP patients with block demonstrated more frequent paranodal serum binding to teased rat nerve fibres. In keeping with these findings, mathematical modelling of nerve excitability recordings in CIDP patients with block support the role of paranodal dysfunction and enhanced leakage of current between the node and internode. In contrast, changes in MMN probably resulted from a reduction in ion channel density along axons. CONCLUSIONS The underlying pathologies in CIDP and MMN are distinct. Conduction block in CIDP is associated with paranodal dysfunction which may be antibody-mediated in a subset of patients. In contrast, MMN is characterized by channel dysfunction downstream from the site of block.
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Affiliation(s)
- N Garg
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Department of Neurology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - S B Park
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - J Howells
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - S Vucic
- Departments of Neurology and Neurophysiology, Westmead Hospital, University of Sydney, Sydney, NSW, Australia
| | - C Yiannikas
- Department of Neurology, Concord and Royal North Shore Hospitals, University of Sydney, Sydney, NSW, Australia
| | - E K Mathey
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - T Nguyen
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Y Noto
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - M H Barnett
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Department of Neurology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - A V Krishnan
- Prince of Wales Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - J Spies
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Department of Neurology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - H Bostock
- MRC Centre for Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, London, UK.,Institute of Neurology, University College London, London, UK
| | - J D Pollard
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Department of Neurology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - M C Kiernan
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Department of Neurology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
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16
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Jo JH, Park SB, Park S, Lee HS, Kim C, Jung DE, Song SY. Novel Gastric Cancer Stem Cell-Related Marker LINGO2 Is Associated with Cancer Cell Phenotype and Patient Outcome. Int J Mol Sci 2019; 20:ijms20030555. [PMID: 30696080 PMCID: PMC6387145 DOI: 10.3390/ijms20030555] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 02/07/2023] Open
Abstract
The expression of leucine-rich repeat and immunoglobulin-like domain-containing nogo receptor-interacting protein 2 (LINGO2) has been reported in Parkinson’s disease; however, its role in other diseases is unknown. Gastric cancer is the second leading cause of cancer death. Cancer stem cells (CSC) are a subpopulation of cancer cells that contribute to the initiation and invasion of cancer. We identified LINGO2 as a CSC-associated protein in gastric cancers both in vitro and in patient-derived tissues. We studied the effect of LINGO2 on cell motility, stemness, tumorigenicity, and angiogenic capacity using cells sorted based on LINGO2 expression and LINGO2-silenced cells. Tissue microarray analysis showed that LINGO2 expression was significantly elevated in advanced gastric cancers. The overall survival of patients expressing high LINGO2 was significantly shorter than that of patients with low LINGO2. Cells expressing high LINGO2 showed elevated cell motility, angiogenic capacity, and tumorigenicity, while LINGO2 silencing reversed these properties. Silencing LINGO2 reduced kinase B (AKT)/extracellular signal-regulated kinase (ERK)/ERK kinase (MEK) phosphorylation and decreased epithelial-mesenchymal transition (EMT)-associated markers—N-Cadherin and Vimentin and stemness-associated markers— POU class 5 homeobox 1 (OCT4) and Indian hedgehog (IHH), and markedly decreased the CD44+ population. These indicate the involvement of LINGO2 in gastric cancer initiation and progression by altering cell motility, stemness, and tumorigenicity, suggesting LINGO2 as a putative target for gastric cancer treatment.
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Affiliation(s)
- Jung Hyun Jo
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea.
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea.
| | - Semi Park
- Department of Internal Medicine, Graduate School, Yonsei University College of Medicine, Seoul 03722, Korea.
- Center for Health Promotion, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.
| | - Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea.
| | - Chanyang Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea.
| | - Dawoon E Jung
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul 03722, Korea.
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Korea.
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul 03722, Korea.
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17
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Park WY, Kang SS, Jin K, Park SB, Han S. Is the Clinical Outcome Good or Bad in Patients Hospitalized Within 1 Year After Kidney Transplantation? Transplant Proc 2018; 50:1001-1004. [PMID: 29731055 DOI: 10.1016/j.transproceed.2018.01.027] [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] [Received: 12/13/2017] [Accepted: 01/03/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although the hospitalization rate at early period of kidney transplantation (KT) is still high, the association between the hospitalization within 1 year after KT and graft survival is unclear. We investigated the incidence and causes of hospitalization and clinical outcome of the patients hospitalized within 1 year after KT. METHODS We retrospectively analyzed 174 KT recipients (KTRs) hospitalized within 1 year after KT between 2013 and 2015. RESULTS Among them, 84 (48%) KTRs were admitted within 1 year after KT, and the number of hospitalizations was 116. The mean time from KT to first hospitalization was 4.2 months. Seventy-eight percent of the patients were hospitalized for medical causes and 22% for surgical causes. The most common cause was cytomegalovirus infection (CMV) (23.3%), followed by acute rejection (11.2%) and urinary tract infection (10.3%). Recipients and donors in the hospitalized group were significantly older than the nonhospitalized group. The proportions of deceased donor KT, acute rejection, more than 50% panel-reactive antibody, and positive donor-specific antibody were significantly higher in the hospitalized group than in the nonhospitalized group. Graft and patient survivals were lower in the hospitalized group than in the nonhospitalized group. Deceased donor KT and acute rejection were independent risk factors for hospitalization. CONCLUSION The incidence of KTRs hospitalized within 1 year after KT was high. Most causes of hospitalization were CMV infection, acute rejection, and urinary tract infection. Therefore, the immunosuppression status of these patients should be closely monitored to reduce the hospitalization rate.
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Affiliation(s)
- W Y Park
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea
| | - S S Kang
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea
| | - K Jin
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea
| | - S B Park
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea
| | - S Han
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea.
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Jung DE, Kim K, Kim C, Park SB, Jo JH, Lee HS, Song SY. Abstract 4337: Identification of novel fusion gene, PUM1-TRAF3, as potent biomarker in bile duct cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-4337] [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: Gene fusion occurs when a part of one gene fuses with a part of another gene by genome rearrangement and may possess oncogenic properties. Bile duct cancer (BDC) are one of the most lethal malignancy, but lack of proper diagnostic or prognostic markers. Our aim was to investigate BDC specific fusion genes found in patient's specimens and its clinical significance. Method : We extracted total RNA from five BDC tissues and normal tissues from the same patients. RNA sequencing was performed and the result data was analyzed using ChimeraScan, Jaffa or FusionCatcher softwares to detect gene fusion. The expression of the detected novel fusion gene was confirmed by ddPCR using tissues from the operated BDC patients and its clinical significance was analyzed with medical information of the patients. Result : We found 52 BDC specific fusion genes by RNA sequencing and we identified novel BDC specific fusion gene, PUM1-TRAF3 by bioinformatics analysis. Total 55 patients with BDC who underwent curative surgery were evaluated to investigate clinical significance of PUM1-TRAF3. There were 28 patients (50.1%) who expressed PUM1-TRAF3 by ddPCR. Patients with PUM1-TRAF3 presented higher rate of female gender (57.1 vs. 25.9, p=0.019), advanced stage (25% vs. 3.7%, p=0.025) and recurrence rate (64.7 vs. 48.1%, p=0.080) compared to patients without PUM1-TRAF3. Disease free survival (DFS) was 12.1 vs. 29.8 (p=0.078) and overall survival was 26.1 vs. 36.6 (p=0.239) between the patients with PUM1-TRAF3 and without PUM1-TRAF3. In multivariated analysis by cox-regression, expression of PUM1-TRAF3 (HR 2.86, p=0.023), advanced stage (HR 2.69, p=0.041), higher CA19-9 (HR 1.00, p=0.011) and positive resection margin (HR 4.57, p=0.002) were significantly associated with short DFS.Conclusion : In this study, we identified novel BDC-specific fusion gene, PUM1-TRAF3. Expression of PUM1-TRAF3 was confirmed in patient's tissues and associated with short DFS in operated BDC patients. PUM1-TRAF3 can be a potent biomarker in BDC.
Citation Format: Dawoon E. Jung, Kahee Kim, Chanyang Kim, Soo Been Park, Jung Hyun Jo, Hee Seung Lee, Si Young Song. Identification of novel fusion gene, PUM1-TRAF3, as potent biomarker in bile duct cancer [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 4337.
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Affiliation(s)
- Dawoon E. Jung
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Kahee Kim
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Chanyang Kim
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Soo Been Park
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Jung Hyun Jo
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Hee Seung Lee
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
| | - Si Young Song
- Yonsei Univ. College of Medicine, Seoul, Republic of Korea
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Edrees A, Abdelhamed H, Nho SW, Park SB, Karsi A, Austin FW, Essa M, Pechan T, Lawrence ML. Construction and evaluation of type III secretion system mutants of the catfish pathogen Edwardsiella piscicida. J Fish Dis 2018; 41:805-816. [PMID: 29424442 PMCID: PMC6080200 DOI: 10.1111/jfd.12784] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 12/29/2017] [Accepted: 12/31/2017] [Indexed: 05/05/2023]
Abstract
Catfish is the largest aquaculture industry in the United States. Edwardsiellosis is considered one of the most significant problems affecting this industry. Edwardsiella piscicida is a newly described species within the genus Edwardsiella, and it was previously classified as Edwardsiella tarda. It causes gastrointestinal septicaemia, primarily in summer months, in farmed channel catfish in the south-eastern United States. In the current study, we adapted gene deletion methods used for Edwardsiella to E. piscicida strain C07-087, which was isolated from a disease outbreak in a catfish production pond. Four genes encoding structural proteins in the type III secretion system (T3SS) apparatus of E. piscicida were deleted by homologous recombination and allelic exchange to produce in-frame deletion mutants (EpΔssaV, EpΔesaM, EpΔyscR and EpΔescT). The mutants were phenotypically characterized, and virulence and vaccine efficacy were evaluated. Three of the mutants, EpΔssaV, EpΔyscR and EpΔesaM, were significantly attenuated compared to the parent strain (p < .05), but EpΔescT strain was not. Vaccination of catfish with the four mutant strains (EpΔssaV, EpΔesaM, EpΔyscR and EpΔescT) provided significant protection when subsequently challenged with wild-type strain. In conclusion, we report methods for gene deletion in E. piscicida and development of vaccine candidates derived from a virulent catfish isolate.
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Affiliation(s)
- A Edrees
- Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - H Abdelhamed
- College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| | - S W Nho
- College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| | - S B Park
- Department of Animal and Dairy Science, Mississippi State University, Mississippi State, MS, USA
| | - A Karsi
- College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| | - F W Austin
- College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| | - M Essa
- Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - T Pechan
- Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi State, MS, USA
| | - M L Lawrence
- College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
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Lee HS, Jang CY, Kim SA, Park SB, Jung DE, Kim BO, Kim HY, Chung MJ, Park JY, Bang S, Park SW, Song SY. Combined use of CEMIP and CA 19-9 enhances diagnostic accuracy for pancreatic cancer. Sci Rep 2018; 8:3383. [PMID: 29467409 PMCID: PMC5821821 DOI: 10.1038/s41598-018-21823-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 02/06/2018] [Indexed: 12/23/2022] Open
Abstract
Carbohydrate antigen (CA) 19-9 is the only diagnostic marker used in pancreatic cancer despite its limitations. Here, we aimed to identify the diagnostic role of CEMIP (also called KIAA1199) combined with CA 19-9 in patients with pancreatic cancer. A retrospective analysis of prospectively collected patient samples was performed to determine the benefit of diagnostic markers in the diagnosis of pancreatic cancer. We investigated CEMIP and CA 19-9 levels in 324 patients with pancreatic cancer and 49 normal controls using serum enzyme-linked immunosorbent assay. Median CA 19-9 and CEMIP levels were 410.5 U/ml (40.8-3342.5) and 0.67 ng/ml (0.40-1.08), respectively, in patients with pancreatic cancer. The AUROC for CA 19-9 and CEMIP were 0.847 (95% confidence interval [CI]: 0.806-0.888) and 0.760 (95% CI: 0.689-0.831), respectively. Combination of CA 19-9 with CEMIP showed markedly improved AUROC over CA 19-9 alone in pancreatic cancer diagnosis (0.94 vs. 0.89; P < 0.0001). CEMIP showed a diagnostic yield of 86.1% (68/79) in CA 19-9 negative pancreatic cancer. Combined use with CEMIP showed significantly improved diagnostic value compared with CA 19-9 alone in pancreatic cancer. Especially, CEMIP may be a complementary marker in pancreatic cancer patients with normal CA 19-9 levels.
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Affiliation(s)
- Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Chan Young Jang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sun A Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Dawoon E Jung
- Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Bo Ok Kim
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Ha Yan Kim
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Moon Jae Chung
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong Youp Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Seungmin Bang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Woo Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
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Kang SS, Park WY, Jin K, Park SB, Han S. Kidney Transplantation in Korean Patients With End-Stage Renal Disease Aged 65 and Older: A Single-Center Experience. Transplant Proc 2018; 49:987-991. [PMID: 28583573 DOI: 10.1016/j.transproceed.2017.03.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The mean age of patients starting dialysis in Korea has increased to older than 60 years and the proportion of patients aged 65 and older exceeded 40% in 2014. Although the number of elderly dialysis patients is increasing rapidly, percentages of elderly patients undergoing kidney transplantation (KT) are very low. METHODS We retrospectively reviewed the medical records of patients who underwent KT at Keimyung University Dongsan Medical Center between 1982 and 2016. Elderly patients (≥65 years old) were compared with the control group of patients in their early sixties (60-64 years old). RESULTS Among a total of 1209 KT patients, those in their early sixties totaled 34 (2.8%) and the elderly totaled only 18 (1.5%). Patient and allograft survival rate showed no significant differences between the elderly and those in their early sixties. Death with a functioning graft accounted for 50% in both groups. However, occurrences of bacterial infection and tuberculosis were higher in the elderly (P = .011 and .047, respectively). In a multivariate analysis, longer duration of renal replacement therapy before KT and the occurrence of malignancy were independent risk factors for patient death (hazard ratio [HR], 1.027; P = .014; HR, 31.934; P = .016, respectively). Also, albuminuria at 6 months after KT was an independent risk factor for allograft loss (HR, 51.155; P = .016). CONCLUSION The overall survival rate of the elderly was not significantly lower than those in their early sixties. Even in the elderly, KT should not be delayed. In addition, careful surveillance for malignancy and measures to decrease the risk of infection are necessary.
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Affiliation(s)
- S S Kang
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea
| | - W Y Park
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea
| | - K Jin
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea
| | - S B Park
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea
| | - S Han
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea; Keimyung University Kidney Institute, Daegu, Korea.
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Abstract
BACKGROUND Kidney re-transplantation is commonly considered to have a higher immunological risk than first kidney transplantation. Because of the organ shortage and increasing waiting lists, long-term outcomes of kidney re-transplantation are being studied. However, reports of re-transplantation outcomes are not common. We have reported our 30 years of experience with second kidney transplantations. METHODS Of 1210 kidney transplantations between November 1982 and August 2016 performed in our hospital, 105 were second kidney transplantations (2nd KT). Living donor KT was 44; deceased donor KT was 61. RESULTS Patient survival rates at 1, 5, and 10 years were 100%, 97.2%, and 90.7%, and graft survival rates were 97.0%, 94.6%, and 71.5%, respectively. The leading cause of graft failure in the 2nd KT was chronic rejection (60%). In addition, induction immunosuppressant, maintenance immunosuppressant, delayed graft function, and graft survival time at the 1st KT had a significant impact on graft survival time at the 2nd KT. CONCLUSIONS Reasonable results in both patient survival and graft survival rates were found in the 2nd KT. Careful monitoring of immunologic risk is needed.
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Affiliation(s)
- S M Yeo
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Y Kim
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - S S Kang
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea; Keimyung University Kidney Institute, Daegu, Republic of Korea
| | - W Y Park
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea; Keimyung University Kidney Institute, Daegu, Republic of Korea
| | - K Jin
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea; Keimyung University Kidney Institute, Daegu, Republic of Korea
| | - S B Park
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea; Keimyung University Kidney Institute, Daegu, Republic of Korea
| | - U J Park
- Vascular Surgery, Keimyung University School of Medicine, Daegu, Republic of Korea; Keimyung University Kidney Institute, Daegu, Republic of Korea
| | - H T Kim
- Vascular Surgery, Keimyung University School of Medicine, Daegu, Republic of Korea; Keimyung University Kidney Institute, Daegu, Republic of Korea
| | - W H Cho
- Vascular Surgery, Keimyung University School of Medicine, Daegu, Republic of Korea; Keimyung University Kidney Institute, Daegu, Republic of Korea
| | - S Han
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea; Keimyung University Kidney Institute, Daegu, Republic of Korea.
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Park SB, Kwok JB, Asher R, Lee CK, Beale P, Selle F, Friedlander M. Clinical and genetic predictors of paclitaxel neurotoxicity based on patient- versus clinician-reported incidence and severity of neurotoxicity in the ICON7 trial. Ann Oncol 2017; 28:2733-2740. [PMID: 29117336 DOI: 10.1093/annonc/mdx491] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [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: 11/14/2022] Open
Abstract
BACKGROUND Chemotherapy-induced peripheral neuropathy (CIPN) is a dose-limiting toxicity of paclitaxel, with no reliable method to identify at-risk patients. We investigated the incidence and risk factors including genetic polymorphisms associated with the development of CIPN based on clinician and patient reporting of neuropathic symptoms. PATIENTS AND METHODS Risk factors for the development of CIPN were examined in 454 patients treated with paclitaxel/carboplatin from the International Collaboration on Ovarian Neoplasms 7 (ICON7) trial. Neuropathy was graded by clinicians by standard adverse event reporting and by patients utilising OV28 questionnaire. Genetic risk factors were examined by selecting six single nucleotide polymorphisms in genes associated with microtubule function. Risk factors were assessed via dose-to-event cox regression models. RESULTS Grade >2 neuropathy was reported by clinicians in 28% of patients, while 67% of patients reported 'quite a bit' or 'very much' tingling or numbness. Agreement between clinicians and patients was poor (κ = 0.236, 95% confidence interval, 0.177-0.296, P < 0.001). Older age, bevacizumab treatment and bowel resection were associated with clinician reported CIPN, while older age and volume of residual disease were associated with patient-reported neuropathy. There were no significant associations between clinician-reported neuropathy or patient-reported neuropathy and TUBB2, CEP72 or individual MAPT or GSK3B SNPs, however MAPT additive polymorphisms were associated with patient-reported neuropathy and GSK3B additive polymorphisms were associated with clinician reported CIPN. CONCLUSIONS There was significant discordance between patient- and clinician-reported neurotoxicity. The lack of consensus regarding optimal outcome measures and whose opinion with regard to CIPN takes precedence is a limitation in the investigation of risk factors for CIPN. Care must be taken to select and include patient-reported outcome measures in CIPN assessment to enable accurate identification of genetic and other risk factors for neuropathy.
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MESH Headings
- Adenocarcinoma, Clear Cell/complications
- Adenocarcinoma, Clear Cell/drug therapy
- Adenocarcinoma, Clear Cell/pathology
- Adenocarcinoma, Mucinous/complications
- Adenocarcinoma, Mucinous/drug therapy
- Adenocarcinoma, Mucinous/pathology
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Antineoplastic Agents, Phytogenic/adverse effects
- Biomarkers, Tumor/genetics
- Cystadenocarcinoma, Serous/complications
- Cystadenocarcinoma, Serous/drug therapy
- Cystadenocarcinoma, Serous/pathology
- Endometrial Neoplasms/complications
- Endometrial Neoplasms/drug therapy
- Endometrial Neoplasms/pathology
- Female
- Follow-Up Studies
- Humans
- Incidence
- Middle Aged
- Neoplasm Invasiveness
- Neurotoxicity Syndromes/diagnosis
- Neurotoxicity Syndromes/epidemiology
- Neurotoxicity Syndromes/etiology
- Neurotoxicity Syndromes/genetics
- Outcome Assessment, Health Care
- Ovarian Neoplasms/complications
- Ovarian Neoplasms/drug therapy
- Ovarian Neoplasms/pathology
- Paclitaxel/adverse effects
- Patient Reported Outcome Measures
- Physicians
- Polymorphism, Single Nucleotide
- Prognosis
- Risk Factors
- Severity of Illness Index
- Surveys and Questionnaires
- Survival Rate
- Young Adult
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Affiliation(s)
- S B Park
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney; Prince of Wales Clinical School
| | - J B Kwok
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Sydney; Neuroscience Research Australia, University of New South Wales, Sydney
| | - R Asher
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney
| | - C K Lee
- National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney
| | - P Beale
- Concord Cancer Centre, Concord Repatriation General Hospital, Sydney; Sydney Medical School, University of Sydney, Sydney, Australia
| | - F Selle
- Groupe d'Investigateurs Nationaux pour l'Etude des Cancers Ovariens and Department of Medical Oncology, Alliance For Cancer Research, Hôpital Tenon, Paris, France
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Kim SH, Shin SM, Choi YS, Ko CC, Kim SS, Park SB, Son WS, Kim YI. Morphometric analysis of the maxillary root apex positions according to crowding severity. Orthod Craniofac Res 2017; 20:202-208. [PMID: 28857415 DOI: 10.1111/ocr.12198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To determine differences in arch forms derived from the root apices locations between individuals with <2 mm maxillary crowding and controls. SETTING AND SAMPLE POPULATION The Department of Orthodontics, Pusan National University. Cone-beam computed tomography (CBCT) images of 102 patients in the control group and 95 patients in the crowding group. MATERIALS AND METHODS X, Y and Z coordinates of the tip of the crowns and the apex of the root of the maxillary teeth (except second molars) were determined on the CBCT images. The acquired three-dimensional (3D) coordinates were converted into two-dimensional (2D) coordinates via projection on the palatal plane, and the Procrustes analysis was employed to process the converted 2D coordinates. The mean shape of the arch form derived from the location of the tip of the crowns and the apex of the root was compared between groups using the statistical shape analysis. RESULTS There was a statistically significant difference (P = .046) between the groups for the mean shape of the root apex arch form, but the difference was small and clinically irrelevant as it is minor compared to the degree of crowding. CONCLUSIONS Maxillary arch from at the level of the maxillary apices only shows minor differences between crowded and non-crowded dentitions.
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Affiliation(s)
- S H Kim
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea
| | - S M Shin
- Department of Statistics, College of Natural Science, Pusan National University, Busan, South Korea
| | - Y S Choi
- Department of Statistics, College of Natural Science, Pusan National University, Busan, South Korea
| | - C C Ko
- Department of Orthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - S S Kim
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea
| | - S B Park
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea
| | - W S Son
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea
| | - Y-I Kim
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea.,Institute of Translational Dental Sciences, Pusan National University, Yangsan, South Korea
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Cho JH, Kim SA, Park SB, Kim HM, Song SY. Suppression of pancreatic adenocarcinoma upregulated factor (PAUF) increases the sensitivity of pancreatic cancer to gemcitabine and 5FU, and inhibits the formation of pancreatic cancer stem like cells. Oncotarget 2017; 8:76398-76407. [PMID: 29100320 PMCID: PMC5652714 DOI: 10.18632/oncotarget.19458] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 06/23/2017] [Indexed: 12/21/2022] Open
Abstract
Pancreatic cancer stem cells (CSCs) play a crucial role in tumorigenesis and chemoresistance of pancreatic ductal adenocarcinoma. Pancreatic adenocarcinoma up-regulated factor (PAUF), a novel secretory protein, has been shown to contribute to cancer progression and metastasis. Because the clinical relationship between PAUF and pancreatic CSCs is largely unknown, we investigated the associations between the functional role of PAUF and pancreatic CSCs. Pancreatic cancer sphere cultured from the CFPAC-1 cells showed elevated expression of PAUF and pluripotent stemness genes (Oct4, Nanog, Stat3, and Sox2), and the mRNA of PAUF were increased in CD44+CD24+ESA+ pancreatic CSCs. PAUF knockdown (shPAUF) CFPAC-1 diminished the number of spheres and decreased stemness genes and CSC surface markers (CD133, c-MET and ALDH1). In addition, siPAUF CFPAC-1 decreased the mRNA expression of multidrug resistant protein 5 (MRP5) and ribonucleotide reductase M2 (RRM2) and were more vulnerable to gemcitabine and 5-FU than negative control (p<0.05). In conclusion, PAUF was increased in pancreatic CSCs and the suppression of PAUF enhances chemotherapeutic response to gemcitabine and 5FU by decreasing MRP5 and RRM2 in pancreatic cancer cells.
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Affiliation(s)
- Jae Hee Cho
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Division of Gastroenterology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Sun A Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hee Man Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
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Abstract
BACKGROUND Sorafenib is a multi-kinase inhibitor used in the treatment of various cancers. This study investigated the inhibitory effect of sorafenib on xenograft models of gastric cancer cells and 5-fluorouracil (5-FU)-resistant cells. METHODS The half-maximal inhibitory concentration (IC50) of sorafenib in NCI-N87 cells was determined. Xenograft models were established using BALB/c nude mice and were divided into four groups treated with vehicle, sorafenib (20 mg kg-1 day-1), 5-FU (50 mg kg-1 week-1), or a combination of sorafenib (20 mg kg-1 day-1) plus 5-FU (50 mg kg-1 week-1). 5-FU-resistant NCI-N87 cells were established by repeated exposure to 5-FU. RESULTS Sorafenib inhibited NCI-N87 cell growth in a concentration-dependent manner with a mean IC50 of 16.345 ± 5.391 μM. Phosphorylation levels of mitogen-activated protein kinase kinase and extracellular signal-regulated kinase in these cells decreased in a dose-dependent manner after exposure to sorafenib. Sorafenib induced the activation of caspase-3, and its combination with 5-FU more effectively inhibited the growth of xenograft tumors than either sorafenib or 5-FU alone (p < 0.05). Sorafenib markedly inhibited 5-FU-resistant NCI-N87 cell growth as well as sphere formation in both parental and 5-FU-resistant NCI-N87 cells. CONCLUSIONS The sorafenib and 5-FU combination exhibited enhanced antitumor effects in a gastric cancer xenograft model and inhibited 5-FU-resistant cell proliferation and sphere formation. These findings suggest that sorafenib is useful in overcoming gastric cancer resistance to conventional chemotherapy.
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Affiliation(s)
- Hee Man Kim
- a Division of Gastroenterology, Department of Internal Medicine and Yonsei Institute of Gastroenterology , Yonsei University College of Medicine , Seoul , Republic of Korea.,b Division of Gastroenterology and Hepatology, Department of Internal Medicine , Yonsei University Wonju College of Medicine , Wonju , Republic of Korea
| | - Sun A Kim
- a Division of Gastroenterology, Department of Internal Medicine and Yonsei Institute of Gastroenterology , Yonsei University College of Medicine , Seoul , Republic of Korea
| | - Soo Been Park
- a Division of Gastroenterology, Department of Internal Medicine and Yonsei Institute of Gastroenterology , Yonsei University College of Medicine , Seoul , Republic of Korea
| | - Jae Hee Cho
- a Division of Gastroenterology, Department of Internal Medicine and Yonsei Institute of Gastroenterology , Yonsei University College of Medicine , Seoul , Republic of Korea.,c Division of Gastroenterology, Department of Internal Medicine , Gachon University Gil Medical Center , Incheon , Republic of Korea
| | - Si Young Song
- a Division of Gastroenterology, Department of Internal Medicine and Yonsei Institute of Gastroenterology , Yonsei University College of Medicine , Seoul , Republic of Korea.,d Brain Korea 21 Project for Medical Science , Yonsei University College of Medicine , Seoul , Republic of Korea
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27
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Lee HS, Park SB, Kim SA, Kwon SK, Cha H, Lee DY, Ro S, Cho JM, Song SY. A novel HDAC inhibitor, CG200745, inhibits pancreatic cancer cell growth and overcomes gemcitabine resistance. Sci Rep 2017; 7:41615. [PMID: 28134290 PMCID: PMC5278546 DOI: 10.1038/srep41615] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [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: 08/24/2016] [Accepted: 12/22/2016] [Indexed: 12/16/2022] Open
Abstract
Pancreatic cancer is predominantly lethal, and is primarily treated using gemcitabine, with increasing resistance. Therefore, novel agents that increase tumor sensitivity to gemcitabine are needed. Histone deacetylase (HDAC) inhibitors are emerging therapeutic agents, since HDAC plays an important role in cancer initiation and progression. We evaluated the antitumor effect of a novel HDAC inhibitor, CG200745, combined with gemcitabine/erlotinib on pancreatic cancer cells and gemcitabine-resistant pancreatic cancer cells. Three pancreatic cancer-cell lines were used to evaluate the antitumor effect of CG200745 combined with gemcitabine/erlotinib. CG200745 induced the expression of apoptotic proteins (PARP and caspase-3) and increased the levels of acetylated histone H3. CG200745 with gemcitabine/erlotinib showed significant growth inhibition and synergistic antitumor effects in vitro. In vivo, gemcitabine/erlotinib and CG200745 reduced tumor size up to 50%. CG200745 enhanced the sensitivity of gemcitabine-resistant pancreatic cancer cells to gemcitabine, and decreased the level of ATP-binding cassette-transporter genes, especially multidrug resistance protein 3 (MRP3) and MRP4. The novel HDAC inhibitor, CG200745, with gemcitabine/erlotinib had a synergistic anti-tumor effect on pancreatic cancer cells. CG200745 significantly improved pancreatic cancer sensitivity to gemcitabine, with a prominent antitumor effect on gemcitabine-resistant pancreatic cancer cells. Therefore, improved clinical outcome is expected in the future.
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Affiliation(s)
- Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Been Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sun A Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sool Ki Kwon
- CrystalGenomics, Inc., 5F, Bldg A, Korea Bio Park, Seongnam, Korea
| | - Hyunju Cha
- CrystalGenomics, Inc., 5F, Bldg A, Korea Bio Park, Seongnam, Korea
| | - Do Young Lee
- CrystalGenomics, Inc., 5F, Bldg A, Korea Bio Park, Seongnam, Korea
| | - Seonggu Ro
- CrystalGenomics, Inc., 5F, Bldg A, Korea Bio Park, Seongnam, Korea
| | - Joong Myung Cho
- CrystalGenomics, Inc., 5F, Bldg A, Korea Bio Park, Seongnam, Korea
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
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Kang HK, Park SB, Kim SH, Kim CH. Effects of stock density on the laying performance, blood parameter, corticosterone, litter quality, gas emission and bone mineral density of laying hens in floor pens. Poult Sci 2016; 95:2764-2770. [PMID: 27578881 PMCID: PMC5144664 DOI: 10.3382/ps/pew264] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Revised: 02/24/2016] [Accepted: 06/15/2016] [Indexed: 11/25/2022] Open
Abstract
The effects of stocking density on the performance, egg quality, leukocyte concentration, blood biochemistry, corticosterone levels, bone mineral density, and noxious gas emission of laying hens were investigated. Eight hundred 34-week-old Hy-Line Brown laying hens (Gallus gallus domesticus) were randomly assigned to one of 4 treatments, each of which was replicated 4 times. Four stocking densities, including 5, 6, 7, and 10 birds/m2, were compared. A commercial-type basal diet was formulated to meet or exceed nutrient recommendations for laying hens from the National Research Council. The diet was fed to the hens ad libitum for 8 wk. Results indicated that hen-day egg production, egg mass, and feed intake were less for (P < 0.01) 10 birds/m2 stock density than other stock densities. Production rate of floor and broken eggs and eggshell strength were greater (P < 0.01) for 10 birds/m2 stock density than other stock densities. There were no significant differences in the level of leukocytes among densities. However, heterophils and the H/L ratio were greater (P < 0.01) for 10 birds/m2 than in stock density of 6 or 7 birds/m2 Serum corticosterone was greater (P < 0.01) 10 birds/m2 than stock density than other stock densities. Litter moisture and gas emission (CO2 and NH3) were greater (P < 0.01) for 10 birds/m2 than stock density than 6 and 7 birds/m2 stock density. Bone mineral content was not influenced by increasing stock density. However, bone mineral density was less (P < 0.05) for 10 m2 stock density than other stock densities. These results indicate that increasing the density beyond 5 birds/m2 elicits some negative effects on laying performance of Hy-Line brown laying hens.
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Affiliation(s)
- H K Kang
- Poultry Science Division, National Institute of Animal Science, RDA, Cheonan-si, Chungnam 331-801, Republic of Korea
| | - S B Park
- Poultry Science Division, National Institute of Animal Science, RDA, Cheonan-si, Chungnam 331-801, Republic of Korea
| | - S H Kim
- Poultry Science Division, National Institute of Animal Science, RDA, Cheonan-si, Chungnam 331-801, Republic of Korea
| | - C H Kim
- Poultry Science Division, National Institute of Animal Science, RDA, Cheonan-si, Chungnam 331-801, Republic of Korea
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Oh B, Choi WS, Park SB, Cho B, Yang YJ, Lee ES, Lee JH. Efficacy and safety of ursodeoxycholic acid composite on fatigued patients with elevated liver function and/or fatty liver: a multi-centre, randomised, double-blinded, placebo-controlled trial. Int J Clin Pract 2016; 70:302-11. [PMID: 26997458 PMCID: PMC5071730 DOI: 10.1111/ijcp.12790] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
AIM The aim of this study was to assess the effects of ursodeoxycholic acid composite (URSA-S) on fatigue in patients with elevated liver function tests and/or fatty liver disease. METHODS In this multi-centre randomised double-blinded placebo-controlled trial, 168 adults who were diagnosed with fatigue based on our criteria and had elevated liver function tests (but not > 5 times the normal level) and/or fatty liver on ultrasonography, were randomised to either the placebo or URSA-S administration group. The rate of improvement of checklist individual strength (CIS) using a cut-off of 76 points at the end of the study (8 weeks), the change in fatigue scale [CIS score and visual analogue scale (VAS)] were evaluated. The adverse effects of URSA-S were also recorded. RESULTS The rate of CIS improvement at the end-point was 79.76% and 45.68% in the therapy and placebo groups, respectively (p < 0.05). The fatigue recovery rate of the CIS score and VAS were higher in the therapy (-25.44 ± 18.57, -27.84 ± 2.70) than in the placebo group (-16.59 ± 17.29, -19.46 ± 2.81) (p < 0.05). The difference in fatigue recovery rate between the therapy and placebo groups was significant after 8 weeks. When analysed separately in patients with abnormal liver function tests and fatty liver disease, the fatigue recovery rate of the CIS score and VAS at 8 weeks was higher in the therapy than in the placebo group (p < 0.05). The frequency of adverse events in the therapy group was not significantly higher than that in the placebo group. CONCLUSION URSA-S is effective for alleviating fatigue in patients with liver dysfunction and/or fatty liver. The adverse effects of URSA-S are not significant. This study is registered at https://clinicaltrials.gov/ct2/show/NCT02415777.
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Affiliation(s)
- B Oh
- Department of Family Medicine, SMG-SNU Boramae Hospital, School of Medicine, Seoul National University, Seoul, Korea
| | - W S Choi
- Department of Family Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S B Park
- Department of Family Practice and Community Health, Ajou University Hospital, School of Medicine, Ajou University, Suwon, Korea
| | - B Cho
- Department of Family Medicine, Seoul National University Hospital, School of Medicine, Seoul National University, Seoul, Korea
| | - Y J Yang
- Department of Health Promotion Center, Ilsan Paik Hospital, School of Medicine, Inje University, Goyang, Korea
| | - E S Lee
- Department of Health Promotion Center, Ilsan Paik Hospital, School of Medicine, Inje University, Goyang, Korea
| | - J H Lee
- Department of Health Promotion Center, Ilsan Paik Hospital, School of Medicine, Inje University, Goyang, Korea
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Cheng J, Park SB, Kim SH, Yang SH, Suh JW, Lee CH, Kim JG. Suppressing activity of staurosporine from Streptomyces sp. MJM4426 against rice bacterial blight disease. J Appl Microbiol 2016; 120:975-85. [PMID: 26678243 DOI: 10.1111/jam.13034] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 10/01/2015] [Accepted: 12/09/2015] [Indexed: 11/28/2022]
Abstract
AIM To identify the active compounds from the Streptomyces sp. MJM4426 that can protect rice from bacterial blight disease (BB), and to evaluate the potential of this Streptomyces strains and the compound for biocontrol of rice bacterial blight disease. METHODS AND RESULTS The ethyl acetate extract of Streptomyces sp. MJM4426 can significantly protect rice leaf explants from the infection of Xanthomonas oryzae pv. oryzaeKACC 10331 (Xoo), the pathogen which cause BB. To identify the active compounds, the ethyl acetate extract of Streptomyces sp. MJM4426 was fractionated through a Sephadex LH-20 column chromatography, and further purified by preparative HPLC guided by the inhibitory activity against BB in rice leaf explants. UPLC-Q-TOF/MS analysis showed the active compound displayed its m/z values at [M+H](+) 467·2086 and [M+FA-H](-) 511·1963, and the molecular formula was estimated as C28 H26 N4 O3 which is identical to commercial standard staurosporine. In this study, the isolated staurosporine dramatically suppressed bacterial blight in rice leaf explants with the lowest concentration at 12·5 μmol l(-1) , however, it exhibited low inhibitory activity against Xoo with the MIC value at 256 μg ml(-1) . In addition, greenhouse study showed both crude extract and purified staurosporine can suppress the bacterial blight at the concentration of 5000 and 200 μg ml(-1) respectively. CONCLUSION Streptomyces sp. MJM4426 can protect rice leaf explants from the infection of Xoo by producing staurosporine, but not by direct inhibitory activity against Xoo. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first report that staurosporine can protect rice leaf against bacterial blight disease and showed the potential of Streptomyces sp. MJM4426 as an alternative to chemical bactericide for bacterial blight disease in rice.
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Affiliation(s)
- J Cheng
- Division of Bioscience and Bioinformatics, College of Natural Science, Myongji University, Yongin, Gyeonggi-Do, Korea.,Center for Neutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi-Do, Korea
| | - S B Park
- Genomics Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju, Jeollabuk-Do, Korea.,Department of Bioscience and Biotechnology, Konkuk University, Seoul, Korea
| | - S H Kim
- Genomics Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju, Jeollabuk-Do, Korea
| | - S H Yang
- Center for Neutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi-Do, Korea.,Interdisciplinary Program of Biomodulation, Myongji University, Yongin, Gyeonggi-Do, Korea
| | - J-W Suh
- Division of Bioscience and Bioinformatics, College of Natural Science, Myongji University, Yongin, Gyeonggi-Do, Korea.,Center for Neutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi-Do, Korea
| | - C H Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Korea
| | - J G Kim
- Genomics Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju, Jeollabuk-Do, Korea
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Ko YN, Choi SH, Park SB, Kang YC. Hierarchical MoSe₂ yolk-shell microspheres with superior Na-ion storage properties. Nanoscale 2014; 6:10511-10515. [PMID: 25081031 DOI: 10.1039/c4nr02538e] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Yolk-shell-structured MoSe₂ microspheres were prepared via a simple selenization process of MoO₃ microspheres. The yolk-shell-structured MoSe₂ and MoO₃ microspheres delivered initial discharge capacities of 527 and 465 mA h g(-1) in the voltage range of 0.001-3 V vs. Na/Na(+) at a current density of 0.2 A g(-1), respectively, and their discharge capacities after 50 cycles were 433 and 141 mA h g(-1), respectively. The yolk-shell-structured MoSe₂ microspheres also exhibited outstanding high rate capabilities. The hierarchical yolk-shell structure comprised of wrinkled nanosheets facilitated fast Na-ion and electron kinetics, and buffered the large volume changes encountered during cycling.
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Affiliation(s)
- Y N Ko
- Department of Materials Science and Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 136-713, Korea.
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Sheen S, Sun JS, Park JH, Oh YM, Ki SK, Kim K, Park SB, Kim BT, Lee M, Jung YJ, Chung WY, Lee KS, Park KJ, Hwang SC. Unique features of non-obstructive emphysema and pure airway obstruction. Int J Tuberc Lung Dis 2014; 18:109-16. [PMID: 24365562 DOI: 10.5588/ijtld.13.0258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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 Emphysema without airway obstruction or airway obstruction without emphysema are often detected clinically, although they are commonly co-existent. We therefore tested the hypothesis that non-obstructive emphysema and pure airway obstruction have unique features. METHODS A case-control observation study was undertaken retrospectively in a patient cohort at a single centre. Among 2662 subjects who underwent chest computed tomography and pulmonary function tests, we enrolled 90 patients with non-obstructive emphysema, 119 with pure airway obstruction, 81 with obstructive emphysema and 2031 subjects as normal controls. The features of the four groups were analysed and compared. RESULTS Higher serum homocysteine (13.4 ± 7.4 vs. 11.6 ± 4.6 mol/l), higher rate of osteoporosis (15.8% vs. 4.5%), higher leukocyte count, higher male ratio, lower serum albumin and lower body mass index were observed in subjects with non-obstructive emphysema than in controls (P < 0.05). In multiple logistic regression analysis of groups without airway obstruction, osteoporosis, hyperhomocysteinaemia, hypoalbuminaemia and higher leukocyte count were independent factors associated with non-obstructive emphysema (P < 0.05). CONCLUSION Hyperhomocysteinaemia, hypoalbuminaemia, osteoporosis and higher leukocyte count were independent predictors of non-obstructive emphysema.
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Affiliation(s)
- S Sheen
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J S Sun
- Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J H Park
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Y-M Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Republic of Korea
| | - S K Ki
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - K Kim
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Republic of Korea
| | - S B Park
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Republic of Korea
| | - B T Kim
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Republic of Korea
| | - M Lee
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Y-J Jung
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - W Y Chung
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - K S Lee
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - K J Park
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - S C Hwang
- Department of Pulmonary and Critical Care Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
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Abstract
Yolk-shell MoS2 powders with a distinct configuration of MoS2@void@MoS2 were prepared for the first time by applying spray pyrolysis. The yolk-shell MoO3 powders prepared by spray pyrolysis were converted into MoS2 powders by a simple sulfidation process at 400 °C without altering the morphology. Dense structured MoS2 powders were also prepared by a similar process. The respective initial discharge capacities of the yolk-shell and dense structured MoS2 powders at a current density of 1000 mA g(-1) were 651 and 490 mA h g(-1), and the corresponding capacity retentions after 100 cycles measured from the second cycle were 100 and 72%.
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Affiliation(s)
- Y N Ko
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea.
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Lee JM, Park SB, Oh GJ, Lee YH, Lee S, Kim NH, Kang SK. Prevalence, Awareness, Treatment and Control of Hypertension in Korea. Eur J Public Health 2013. [DOI: 10.1093/eurpub/ckt124.045] [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: 11/13/2022] Open
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Yamaguchi T, Nakaoka H, Yamamoto K, Fujikawa T, Kim Y, Yano K, Haga S, Katayama K, Shibusawa T, Park SB, Maki K, Kimura R, Inoue I. Genome‐wide association study of degenerative bony changes of the temporomandibular joint. Oral Dis 2013; 20:409-15. [DOI: 10.1111/odi.12141] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 05/07/2013] [Accepted: 05/18/2013] [Indexed: 01/05/2023]
Affiliation(s)
- T Yamaguchi
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - H Nakaoka
- Division of Human Genetics National Institute of Genetics ShizuokaJapan
| | - K Yamamoto
- Division of Genome Analysis Research Center for Genetic Information Medical Institute of Bioregulation Kyushu University Fukuoka Japan
| | - T Fujikawa
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - Y‐I Kim
- Department of Orthodontics Pusan National University Dental Hospital Yangsan Korea
| | - K Yano
- Verde Orthodontic Dental Clinic TokyoJapan
| | - S Haga
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - K Katayama
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - T Shibusawa
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - SB Park
- Department of Orthodontics Pusan National University Dental Hospital Yangsan Korea
| | - K Maki
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - R Kimura
- Faculty of Medicine University of the Ryukyus Okinawa Japan
| | - I Inoue
- Division of Human Genetics National Institute of Genetics ShizuokaJapan
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Park SB, Kim SA, Song SY. Abstract 259: Novel biliary tract cancer stem cell biomarker TAGLN2 regulates migration via c-met signaling cascades in biliary tract cancer cells. Cancer Res 2013. [DOI: 10.1158/1538-7445.am2013-259] [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/Aims : Biliary tract cancer is one of the lethal malignancy. Most biliary tract cancer is diagnosed at advanced stages and have poor prognosis. Currently, there are no standard biomarkers and chemotherapeutic agents for biliary tract cancers. In order to find the biomarkers and therapeutic targets for biliary tract cancer, we have focused on the cancer stem cells (CSCs) with tumor initiating/self renewing/metastatic capacity and chemo/radio-resistance. In this study, we investigated the function of biliary tract CSC related biomarker TALGN2 discovered from comparision of cDNA microarray between sphere and adherent cell populations of biliary tract cancer cell lines.
Methods : Analysis using cDNA microarray between sphere and adherent cell populations and selection of CSC specific biomarkers were performed. Among them, we selected TAGLN2 as a biliary CSC related gene. TAGLN2 expression was confirmed by RT-PCR, western blot and immunohistochemistry. To evaluate the function of TAGLN2 in biliary carcinogenesis, we performed targeted knockdown via siRNA in SNU1196 biliary tract cancer cell line.
Results : The expression of stemness and c-met signaling cascades were up-regulated in sphere cells compared with adherent cells. TAGLN2 was also up-regulated in sphere cells. TAGLN2 was highly expressed in most of biliary tract cancer cell lines and biliary tract cancer tissues. TAGLN2 knockdown cells showed decreased cell migration and increased chemosentitivity compared with mock cells. In addition, we found that c-met signaling cascades including PI3K and MAPK were inactivated in TAGLN2 knockdown cells.
Conclusions : These results suggest that biliary tract CSC biomarker TAGLN2 is implicated in biliary tract cancer progression and TAGLN2 may be a potential biomarker and therapeutic target for biliary tract cancer.
Citation Format: Soo Been Park, Sun A Kim, Si Young Song. Novel biliary tract cancer stem cell biomarker TAGLN2 regulates migration via c-met signaling cascades in biliary tract cancer cells. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 259. doi:10.1158/1538-7445.AM2013-259
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Affiliation(s)
- Soo Been Park
- Severance Biomedical Science Institute, Seoul, Republic of Korea
| | - Sun A Kim
- Severance Biomedical Science Institute, Seoul, Republic of Korea
| | - Si Young Song
- Severance Biomedical Science Institute, Seoul, Republic of Korea
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Park SB, Kim H, Yao M, Ellis R, Machtay M, Sohn JW. SU-E-J-87: Building Deformation Error Histogram and Quality Assurance of Deformable Image Registration. Med Phys 2012; 39:3672. [DOI: 10.1118/1.4734922] [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: 11/07/2022] Open
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Kim H, Park SB, Lo S, Monroe JI, Sohn JW. SU-E-J-113: A New Quantification Measure of the Difference Between Two Organ Contours. Med Phys 2012; 39:3678. [DOI: 10.1118/1.4734949] [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: 11/07/2022] Open
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Kim HC, Hwang EA, Park SB, Kim HT, Cho WH. Historical comparison of prophylactic ganciclovir for gastrointestinal cytomegalovirus infection in kidney transplant recipients. Transplant Proc 2012; 44:710-2. [PMID: 22483474 DOI: 10.1016/j.transproceed.2011.11.041] [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: 10/28/2022]
Abstract
BACKGROUND Cytomegalovirus (CMV) can cause morbidity in kidney transplant recipients. The gastrointestinal (GI) tract is a major target for CMV disease. The aim of this study was to evaluate the benefit of ganciclovir prophylaxis on GI CMV infection in intermediate-risk CMV seropositive transplant recipients. METHODS Since January 2009, intravenous ganciclovir (5 mg/kg, twice daily) was administered for 14 days after kidney transplantation in 41 patients. The historical control group consisted of 45 patients who received kidney transplantations between January 2007 and December 2008. To evaluate the effects of prophylaxis on GI CMV infection, we performed routine endoscopic examinations with mucosal biopsies at the time of transplantation as well as 1, 3, and 6 months thereafter. RESULTS The average age of the 86 studied patients was 43.7 ± 10.6 years (range = 14-63) and the male-to-female ratio 1:1.3. Forty-three (50%) patients underwent deceased donor transplantations and 84 (97.7%) patients were CMV seropositive at that time. The incidence of GI CMV infection was significantly lower among the prophylaxis than the historical control group (24.4% vs 48.9%, P = .026). Patient age, numbers of deceased donors, and tacrolimus trough levels at 1 and 3 months posttransplant were significantly lower in the prophylaxis than the historical control group. Logistic regression analysis revealed ganciclovir prophylaxis to be the only significant risk factor for GI CMV infection. CONCLUSION Prophylactic treatment with ganciclovir decreased the incidence GI CMV infection among seropositive kidney transplant recipients.
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Affiliation(s)
- H C Kim
- Department of Internal Medicine and General Surgery, Keimyung University School of Medicine, Kidney Institute, Daegu, Korea
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Park SB, Moon MH, Hong SR, Lee MS, Cho HC, Han BH, Lim KT. Adenoma malignum of the uterine cervix: ultrasonographic findings in 11 patients. Ultrasound Obstet Gynecol 2011; 38:716-721. [PMID: 21919103 DOI: 10.1002/uog.9078] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To evaluate the ultrasonographic features of adenoma malignum, a minimal deviation adenocarcinoma of the uterine cervix. METHODS Eighteen consecutive patients with pathologically confirmed adenoma malignum were enrolled in this study at two institutions. Preoperative ultrasound examination was performed and the results were available in 11 patients. We analyzed retrospectively the gray-scale ultrasound findings for the following morphologic characteristics: cervical enlargement, as well as size, location and ultrasonographic characteristics of lesions. In five patients we also evaluated Doppler features with regard to intralesional vascularity. RESULTS The cervix was enlarged in 73% (8/11) of cases. The mean greatest tumor diameter was 4.2 (range, 2.5-6.8) cm. In five (45%) cases, the cervix was completely infiltrated by the tumor. At gray-scale ultrasound examination, three (27%) tumors were multilocular lesions, four (36%) were multilocular lesions with solid components and four (36%) were solid lesions. In the multilocular lesions with or without a solid component, locules tended to be 1 cm or less in average diameter (86%, 6/7 cases) and there tended to be 11-20 in number (57%, 4/7 cases). In most (57%, 4/7) cases the locular fluid was homogeneously hypoechoic. Most (75%, 3/4) solid lesions manifested heterogeneous echogenicity. The five (100%) tumors examined with Doppler manifested moderate or abundant color content on color or power Doppler. CONCLUSIONS Adenoma malignum can appear sonographically as solid, multilocular and multilocular solid cervical lesions. Awareness of its clinical and ultrasonographic features might improve diagnosis before surgery.
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Affiliation(s)
- S B Park
- Department of Radiology, Cheil General Hospital and Women's Healthcare Center, Kwandong University College of Medicine, Jung-gu, Seoul, Korea.
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Jang HB, Kim YR, Cha IS, Noh SW, Park SB, Ohtani M, Hikima J, Aoki T, Jung TS. Detection of antigenic proteins expressed by lymphocystis virus as vaccine candidates in olive flounder, Paralichthys olivaceus (Temminck & Schlegel). J Fish Dis 2011; 34:555-562. [PMID: 21675997 DOI: 10.1111/j.1365-2761.2011.01268.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Although the major capsid proteins (MCPs) of lymphocystis disease virus (LCDV) have been characterized, little is known about the host-derived immune response to MCPs and other LCDV antigenic proteins. To identify antigenic proteins of LCDV that could be used as vaccine candidates in olive flounder, Paralichthys olivaceus, we analysed the viral proteins responsible for its virulence by applying immuno-proteomics. LCDV proteins were separated by one-dimensional gel electrophoresis, transferred to polyvinylidene difluoride membrane, and probed with homogeneous P. olivaceus antisera elicited by LCDV natural infection and vaccination with formalin-killed LCDV. Four immune-reactive proteins were obtained at 68-, 51-, 41- and 21 kDa using antisera collected from natural infection while two proteins at 51- and 21 kDa exhibited response to antisera from vaccinated fish, indicating that the latter two proteins have vaccine potential. Using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and nanoelectrospray MS/MS, the 51 and 21 kDa proteins were identified as MCP and an unknown protein, respectively.
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Affiliation(s)
- H B Jang
- Aquatic Biotechnology Center of WCU Project, College of Veterinary Medicine, Gyeongsang National University, Jinju, Korea
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Kim H, Shin JJ, Park SB, Monroe JI, Yao M, Ellis R, Sohn JW. SU-E-I-109: Validating Assisted Registration Tool of UTRS Using CT and PET. Med Phys 2011. [DOI: 10.1118/1.3611684] [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: 11/07/2022] Open
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Park SB, Monroe JI, Machtay M, Sohn JW. SU-E-J-71: Uncertainty Representation in a Composite Radiation Dose Using Fuzzy Logic. Med Phys 2011. [DOI: 10.1118/1.3611839] [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: 11/07/2022] Open
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Park SB, Sohn JW. SU-GG-J-51: A New Image Guided Radiation Therapy Scheme Using Spatially Weighted Mutual Information Image Registration and a Semi-Automatic PET Segmentation Tool. Med Phys 2010. [DOI: 10.1118/1.3468275] [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: 11/07/2022] Open
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Kim SK, Jang WC, Park SB, Park DY, Bang KT, Lee SS, Jun JB, Yoo DH, Chang HK. SLC11A1 gene polymorphisms in Korean patients with Behçet's disease. Scand J Rheumatol 2009; 35:398-401. [PMID: 17062442 DOI: 10.1080/03009740600704221] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE To investigate the potential susceptibility to the solute carrier family 11 member 1 (SLC11A1) gene polymorphisms of Korean patients with Behçet's disease (BD). METHODS Ninety-nine patients with BD and 98 controls were recruited. Analyses of three polymorphisms of the SLC11A1 gene [the 5'-promoter (GT)n, D543N and A318V] were performed, either by denaturing high-performance liquid chromatography for D543N and A318V or by using automatic DNA sequencing for the (GT)n. The genotypes and alleles between patients with BD and the controls were compared using the chi2 test and Yate's correction test. RESULTS No significant differences were found in the distribution of genotypes and alleles of the (GT)n polymorphism between BD patients and the controls. However, subjects with the allele 3 or the genotype allele 3/allele 3 of this polymorphism had a significantly lower risk of developing BD than those without this allele or genotype [allele: p = 0.029, pc = 0.039, odds ratio (OR) = 0.60, 95% confidence interval (CI) 0.37-0.95; genotype: p = 0.036, pc = 0.048, OR = 0.54, 95% CI 0.31-0.96]. In addition, the distributions of genotypes and alleles of D543N were similar between BD patients and controls (p>0.05). In the case of A318V, all of the BD patients and controls had a wild-type genotype. CONCLUSION The allele 3 and the genotype allele 3/allele 3 of the 5'-promoter (GT)n in the SLC11A1 gene may have a protective effect for the development of BD in the Korean population. Further studies in other populations are required to confirm our results.
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Affiliation(s)
- S K Kim
- Department of Internal Medicine, Dankook University, Cheonan, South Korea
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Park SB, Yao M, Sohn JW. SU-FF-J-32: Comparison of Manual Plus MI Registration to SWMI Registration Using MVCT for Head-And-Neck Cancer Patients. Med Phys 2009. [DOI: 10.1118/1.3181324] [Citation(s) in RCA: 2] [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: 11/07/2022] Open
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Choi MG, Sohn TS, Park SB, Paik YH, Noh JH, Kim KM, Park CK, Kim S. Decreased expression of p12 is associated with more advanced tumor invasion in human gastric cancer tissues. Eur Surg Res 2009; 42:223-9. [PMID: 19279387 DOI: 10.1159/000208521] [Citation(s) in RCA: 16] [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] [Received: 02/11/2007] [Accepted: 11/03/2008] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS p12(DOC-1) is a well-known growth suppressor; however, its role in gastric carcinogenesis is still unclear. We investigated the expression of p12(DOC-1) in gastric cancer tissues and its possible correlation with p53 expression, and determined its clinical significance. METHODS Immunohistochemical staining using the tissue array method was performed on 180 human gastric carcinomas. The clinicopathological features and prognostic significance were analyzed. RESULTS Of the 180 tissue samples, p53 expression was positive in 85 (47.2%) and p12(DOC-1) expression was negative in 140 (77.8%). The negative expression of p12(DOC-1) was significantly associated with a more advanced depth of tumor invasion and stage (p < 0.05). No apparent correlation was found between p12(DOC-1) and p53 expressions. The 5-year survival rate of the p12(DOC-1)-positive cases (53.7%) was higher than that of the p12(DOC-1)-negative cases (39.3%); however, neither p12(DOC-1) nor p53 expression status had any statistically significant prognostic value. Multivariate analysis revealed that lymph node metastasis, distant metastasis, lymphatic invasion and perineural invasion were independent prognostic factors. CONCLUSIONS This is the first report that suggests that p12(DOC-1) may be involved in the development and progression of gastric cancer. Further studies are required to clarify its exact role in the mechanism of gastric carcinogenesis.
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Affiliation(s)
- M-G Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Park SB, Krishnan AV, Lin CSY, Goldstein D, Friedlander M, Kiernan MC. Mechanisms underlying chemotherapy-induced neurotoxicity and the potential for neuroprotective strategies. Curr Med Chem 2008; 15:3081-94. [PMID: 19075655 DOI: 10.2174/092986708786848569] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chemotherapy-induced neurotoxicity is a significant complication in the successful treatment of many cancers. Neurotoxicity may develop as a consequence of treatment with platinum analogues (cisplatin, oxaliplatin, carboplatin), taxanes (paclitaxel, docetaxel), vinca alkaloids (vincristine) and more recently, thalidomide and bortezomib. Typically, the clinical presentation reflects an axonal peripheral neuropathy with glove-and-stocking distribution sensory loss, combined with features suggestive of nerve hyperexcitability including paresthesia, dysesthesia, and pain. These symptoms may be disabling, adversely affecting activities of daily living and thereby quality of life. The incidence of chemotherapy-induced neurotoxicity appears critically related to cumulative dose and infusion duration, while individual risk factors may also influence the development and severity of neurotoxicity. Differences in structural properties between chemotherapies further contribute to variations in clinical presentation. The mechanisms underlying chemotherapy-induced neurotoxicity are diverse and include damage to neuronal cell bodies in the dorsal root ganglion and axonal toxicity via transport deficits or energy failure. More recently, axonal membrane ion channel dysfunction has been identified, including studies in patients treated with oxaliplatin which have revealed alterations in axonal Na(+) channels, suggesting that prophylactic pharmacological therapies aimed at modulating ion channel activity may prove useful in reducing neurotoxicity. As such, improved understanding of the pathophysiology of chemotherapy-induced neurotoxicity will inevitably assist in the development of future neuroprotective strategies and in the design of novel chemotherapies with improved toxicity profiles.
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Affiliation(s)
- S B Park
- Prince of Wales Medical Research Institute, Barker Street, Randwick, Sydney, NSW 2031, Australia
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Jin KB, Choi HJ, Kim HT, Hwang EA, Han SY, Park SB, Kim HC, Ha EY, Kim YH, Suh SI, Mun KC. Cytokine array after cyclosporine treatment in rats. Transplant Proc 2008; 40:2682-4. [PMID: 18929835 DOI: 10.1016/j.transproceed.2008.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Long-term treatment with cyclosporine (CsA) results in chronic nephrotoxicity, which is known to be mediated by several cytokines including transforming growth factor-betal. Cytokines are known to play an important role in innate immunity, apoptosis, angiogenesis, cell growth, and differentiation. They are known to be involved in most disease processes, including cancer, cardiac disease, and nephrotoxicity. To evaluate changes of cytokines in a rat model of CsA-induced chronic nephrotoxicity, we performed a cytokine array. METHODS Experiments were performed on two groups of rats; normal control group and CsA-treated group. Cytokine array in rat serum was performed using Cytokine Antibody Array I kit from RayBiotech. RESULTS Serum creatinine, urine creatinine, and creatinine clearance increased in the CsA-treated group. Among the several cytokines, the expressions of the lipopolysaccharide-induced CXC chemokine (LIX), monocyte chemoattractant protein 1 (MCP-1), nerve growth factor (beta-NGF), and tissue inhibitor of metalloproteinase-1 (TIMP-1) in the CsA-treated group were increased above that of cytokines in the control group. The density of the LIX in controls was 0.62, and in the CsA-treated group was 1.24. The density of the MCP-1 in controls was 0.68, and in CsA-treated, 1.43. The density of the beta-NGF in controls was 0.62, and that in CsA-treated, 1.24. The density of the TIMP-1 in controls 1.13, and in CsA-treated, 1.40. CONCLUSIONS Our data suggested that among several cytokines elevated levels of the LIX, MCP-1, beta-NGF, and TIMP-1 are the contributing factors to CsA-induced nephropathy.
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Affiliation(s)
- K B Jin
- Dongsan Kidney Institute and Chronic Disease Research Center, Keimyung University, Daegu, Korea
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