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Jung J, Kim HY, Kim M, Sohn K, Kim M, Lee K. Translationally controlled tumor protein induces human breast epithelial cell transformation through the activation of Src. Oncogene 2011; 30:2264-74. [PMID: 21278788 DOI: 10.1038/onc.2010.604] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Translationally controlled tumor protein (TCTP) is implicated in cell growth and malignant transformation. TCTP has been found to interact directly with the third cytoplasmic domain of the α subunit of Na,K-ATPase, but whether this interaction has a role in tumorigenesis is unclear. In this study, we examined TCTP-induced tumor progression signaling networks in human breast epithelial cells, using adenoviral infection. We found that TCTP (a) induces Src release from Na,K-ATPase α subunit and Src activation; (b) phosphorylates tyrosine residues 845, 992, 1086, 1148 and 1173 on anti-epidermal growth factor receptor (EGFR); (c) activates PI3K (phosphatidylinositol 3-kinase )-AKT, Ras-Raf-MEK-ERK1/2, Rac-PAK1/2, MKK3/6-p38 and phospholipase C (PLC)-γ pathways; (d) enhances NADPH oxidase-dependent reactive oxygen species (ROS) generation; (e) stimulates cytoskeletal remodeling and cell motility and (f) upregulates matrix metalloproteinase (MMP) 3 and 13. These findings suggest that TCTP induces tumorigenesis through distinct multicellular signaling pathways involving Src-dependent EGFR transactivation, ROS generation and MMP expression.
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302
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Nam SY, Ko YS, Jung J, Yoon J, Kim YH, Choi YJ, Park JW, Chang MS, Kim WH, Lee BL. A hypoxia-dependent upregulation of hypoxia-inducible factor-1 by nuclear factor-κB promotes gastric tumour growth and angiogenesis. Br J Cancer 2010; 104:166-74. [PMID: 21119667 PMCID: PMC3039796 DOI: 10.1038/sj.bjc.6606020] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The underlying mechanisms involved in the activation of hypoxia-inducible factor-1 (HIF-1) in gastric cancer remain unclear. As nuclear factor-κB (NF-κB) as well as HIF-1 have been implicated in angiogenesis of various cancers, we investigated their relationship in gastric cancer. METHODS Nuclear expressions of HIF-1α and NF-κB/RelA were assessed in 251 human gastric carcinoma specimens by immunohistochemical tissue array analysis. Stable human gastric cancer cells, infected with a retroviral vector containing super-suppressive mutant form of IκBα (IκBαM), were used for animal studies as well as cell culture experiments. Xenografted tumours were measured and IκBαM effects on angiogenesis and HIF-1α activation were assessed by immunohistochemistry, western blotting, luciferase reporter assay, and semiquantitative reverse transcription-polymerase chain reaction. In addition, NF-κB effects on the HIF-1α degradation and synthesis were examined. RESULTS Hypoxia-inducible factor-1α activation positively correlated with RelA activation in clinical gastric cancer samples (P<0.001). The IκBαM overexpression suppressed tumour growth, microvessel density, and HIF-1α activation in xenografted tumours. Cell culture experiments showed that hypoxia-induced HIF-1α expression was reduced by NF-κB inhibition under hypoxic conditions at the translational level. CONCLUSION The hypoxia-dependent activation of the NF-κB/HIF-1α/VEGF pathway contributes, at least in part, to gastric cancer promotion via enhancement of angiogenesis.
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303
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Shin KS, Lee HJ, Jung J, Cha DH, Kim GJ. Culture and in vitro hepatogenic differentiation of placenta-derived stem cells, using placental extract as an alternative to serum. Cell Prolif 2010; 43:435-44. [PMID: 20887550 DOI: 10.1111/j.1365-2184.2010.00693.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Translational research using adult stem cells derived from various tissues has been highlighted in cell-based therapy. However, there are many limitations to using conventional culture systems of adult stem cells for clinically applicability, including limited combinations of cytokines and use of nutrients derived from animals. Here, we have investigated the effects of placental extract (PE) for culture of placenta-derived stem cells (PDSCs) as well as their potential for hepatogenic differentiation. MATERIALS AND METHODS Placental extract, extracted using water-soluble methods, was used as a supplement for culture of PDSCs. Cell viability was determined using the MTT assay, and cytokine assay was performed using Luminex assay kit. Gene expression, indocyanine green (ICG) up-take, PAS (Periodic Acid-Schiff) staining and urea production were also analysed. RESULTS The placental extract contained several types of cytokine and chemokine essential for maintenance and differentiation of stem cells. Expression of stemness markers in PDSCs cultured with PE is no different from that of PDSCs cultured with foetal bovine serum (FBS). After hepatogenic differentiation, expression patterns for hepatocyte-specific markers in PDSCs cultured with PE were consistent and potential for hepatogenic differentiation of PDSCs cultured with PE was similar to that of PDSCs cultured with FBS, as shown by PAS staining and urea production assays. CONCLUSIONS Our findings revealed that placental extract could be used as a new component for culture of adult stem cells, as well as for development of human-based medium, in translational research for regenerative medicine.
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304
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Chung H, Song J, Kim S, Kim K, Jung J. UP-1.35: An analysis of the factors of bladder irritation symptoms after transurethral resection of the prostate (TURP). Urology 2010. [DOI: 10.1016/j.urology.2010.07.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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305
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Schmidt A, Neumann M, Driller E, Jung J, Staratschek-Jox A, Schneider C, Stoelben E, Wolf J, Pfaff H. Hat die Inanspruchnahme eines Gesundheits-Check-up einen Einfluss auf die Entstehung eines Myokardinfarkts bei rauchenden Probanden? DAS GESUNDHEITSWESEN 2010. [DOI: 10.1055/s-0030-1266332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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306
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Kam S, Jung J. MP-01.06: Impact of erectile function in men with lower urinary tract symptoms on ejaculatory function. Urology 2010. [DOI: 10.1016/j.urology.2010.07.350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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307
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Kim S, Song J, Kim K, Chung H, Jung J. POD-2.03: Can we predict complications from known classifications of neurogenic voiding dysfunction? Urology 2010. [DOI: 10.1016/j.urology.2010.07.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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308
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Lee Y, Yeom J, Kim J, Jung J, Jeon CO, Park W. Phenotypic and physiological alterations by heterologous acylhomoserine lactone synthase expression in Pseudomonas putida. MICROBIOLOGY-SGM 2010; 156:3762-3772. [PMID: 20705668 DOI: 10.1099/mic.0.041095-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Many bacteria harbour an incomplete quorum-sensing (QS) system, whereby they possess LuxR homologues without the QS acylhomoserine lactone (AHL) synthase, which is encoded by a luxI homologue. An artificial AHL-producing plasmid was constructed using a cviI gene encoding the C6-AHL [N-hexanoyl homoserine lactone (HHL)] synthase from Chromobacterium violaceum, and was introduced successfully into both the wild-type and a ppoR (luxR homologue) mutant of Pseudomonas putida. Our data provide evidence to suggest that the PpoR-HHL complex, but neither PpoR nor HHL alone, could attenuate growth, antibiotic resistance and biofilm formation ability. In contrast, swimming motility, siderophore production and indole degradation were enhanced by PpoR-HHL. The addition of exogenous indole increased biofilm formation and reduced swimming motility. Interestingly, indole proved ineffective in the presence of PpoR-HHL, thereby suggesting that the PpoR-HHL complex masks the effects of indole. Our data were supported by transcriptome analyses, which showed that the presence of the plasmid-encoded AHL synthase altered the expression of many genes on the chromosome in strain KT2440. Our results showed that heterologous luxI expression that occurs via horizontal gene transfer can regulate a broad range of specific target genes, resulting in alterations of the phenotype and physiology of host cells.
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309
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Choi Y, Park C, Jin C, Kim B, Kim G, Jung J, Kim W, Yoo Y. 491 J7, a methyl jasmonate analogue, enhances TRAIL-mediated apoptosis through reactive oxygen species generation. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71292-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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310
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Jung J, Yeo I, Kim J, Yi B. MO-EE-A3-01: Feasibility Study on Four-Dimensional Dose Reconstruction of Radiation Delivery. Med Phys 2010. [DOI: 10.1118/1.3469091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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311
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Yeo I, Jung J, Kim J. SU-GG-T-186: Fast and Generalized Dose Reconstruction Method Using Virtual Beamlet Dose Responses. Med Phys 2010. [DOI: 10.1118/1.3468576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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312
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Yoon M, Doo A, Park H, Kim S, Jung J, Kim H. SU-GG-J-135: Exploring the Neuroprotective Effects of Bee Venom in a Mouse Parkinson Model with Immunohistochemistry, Magnetization Transfer Ratio Imaging and Spectroscopy. Med Phys 2010. [DOI: 10.1118/1.3468359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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313
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An S, Jung J, Yeo I, Lee R, Yi B. SU-GG-T-187: Impact of Breathing Irreproducibility on Dose Delivery for Phase and Amplitude Gating. Med Phys 2010. [DOI: 10.1118/1.3468577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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314
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Kim MY, Ann EJ, Mo JS, Dajas-Bailador F, Seo MS, Hong JA, Jung J, Choi YH, Yoon JH, Kim SM, Choi EJ, Hoe HS, Whitmarsh AJ, Park HS. JIP1 binding to RBP-Jk mediates cross-talk between the Notch1 and JIP1-JNK signaling pathway. Cell Death Differ 2010; 17:1728-38. [PMID: 20508646 DOI: 10.1038/cdd.2010.50] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Notch1 signaling has a critical function in maintaining a balance among cell proliferation, differentiation, and apoptosis. Our earlier work showed that the Notch1 intracellular domain interferes with the scaffolding function of c-Jun N-terminal kinase (JNK)-interacting protein-1 (JIP1), yet the effect of JIP1 for Notch1-recombining binding protein suppressor of hairless (RBP-Jk) signaling remains unknown. Here, we show that JIP1 suppresses Notch1 activity. JIP1 was found to physically associate with either intracellular domain of Notch1 or RBP-Jk and interfere with the interaction between them. Furthermore, we ascertained that JIP1 caused the cytoplasmic retention of RBP-Jk through an interaction between the C-terminal region of JIP1 including Src homology 3 domain and the proline-rich domain of RBP-Jk. We also found that RBP-Jk inhibits JIP1-mediated activation of the JNK1 signaling cascade and cell death. Our results suggest that direct protein-protein interactions coordinate cross-talk between the Notch1-RBP-Jk and JIP1-JNK pathways.
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315
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Sun D, Shim B, Jung J, Lee K, Kim H, Hong S, Kim S, Cho H. Markers of anaerobic glycolysis as predictive factor in neoadjuvant chemoradiotherapy of rectal cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.10573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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316
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Jung M, Zhang X, Kwon W, Jung J, Jeung H, Roh JK, Chung HC, Rha SY. Prediction of response in patients (pts) with advanced gastric cancer (AGC) who received paclitaxel-based chemotherapy: Expression of class III beta tubulin (bTubIII) and ABCB1 gene polymorphisms. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e14528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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317
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Cho H, Zhang X, Jung M, Kwon W, Jung J, Jeung H, Roh JK, Chung HC, Rha SY. C-met as a therapeutic target for metastatic potential of gastric cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e14568] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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318
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Hong KW, Jin HS, Lim JE, Cho YS, Go MJ, Jung J, Lee JE, Choi J, Shin C, Hwang SY, Lee SH, Park HK, Oh B. Non-synonymous single-nucleotide polymorphisms associated with blood pressure and hypertension. J Hum Hypertens 2010; 24:763-74. [PMID: 20147969 DOI: 10.1038/jhh.2010.9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In this study, we determined the association of 1180 non-synonymous single-nucleotide polymorphisms (SNPs) with systolic blood pressure (SBP) and hypertensive status. A total of 8842 subjects were taken from two community-based cohorts--Ansung (n=4183) and Ansan (n=4659), South Korea--which had been established for genome-wide association studies (GWAS). Five SNPs (rs16835244, rs2286672, rs6265, rs17237198 and rs7312017) were significantly associated (P-values: 0.003-0.0001, not corrected for genome-wide significance) with SBP in both cohorts. Of these SNPs, rs16835244 and rs2286672 correlated with risk for hypertension. The rs16835244 SNP replaces Ala288 in arginine decarboxylase (ADC) with serine, and rs2286672 replaces Arg172 in phospholipase D2 (PLD2) with cysteine. A comparison of peptide sequences between vertebrate homologues revealed that the SNPs identified occur at conserved amino-acid residues. In silico analysis of the protein structure showed that the substitution of a polar residue, serine, for a non-polar alanine at amino-acid residue 288 affects a conformational change in ADC, and that Arg172 in PLD2 resides in the PX domain, which is important for membrane trafficking. These results provide insights into the function of these non-synonymous SNPs in the development of hypertension. The study investigating non-synonymous SNPs from GWAS not only by statistical association analysis but also by biological relevance through the protein structure might be a good approach for identifying genetic risk factors for hypertension, in addition to discovering causative variations.
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319
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Lee H, Jeon E, Bang B, Shim E, Kwon J, Kim T, Jung J, Lee S, Kim K, Kim S, Kang H, Park H, Chang Y, Kim S, Cho S, Min K, Kim Y. TNF-α Contributes To The Development Of Asthma By Enhancing IL-23/Th17 And Th2 Immune Responses. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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320
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Kang M, Kim B, Kwon J, Kim T, Jung J, Lee S, Kim K, Kim S, Kang H, Park H, Chang Y, Kim S, Cho S, Min K, Kim Y. Clinical Characteristics of Kimura Disease in Korea. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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321
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Lee J, Jung J. Comparison of QuantiFERON-TB Gold Assay with Tuberculin Skin Test in Korean Children. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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322
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Jung J, Yun H, Kim J, Lee J. The Factors That Is Contributing To The Efficacy Of Leukotriene Receptor Modifier In Asthmatic Children Younger Than 5-years-old. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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323
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Reither K, Saathoff E, Jung J, Minja LT, Machibya H, Maboko L, Perkins MD, Hoelscher M, Boehme CC. Evaluation of Diagnos TB AG, a flow-through immunoassay for rapid detection of pulmonary tuberculosis. Int J Tuberc Lung Dis 2010; 14:238-240. [PMID: 20074417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
We evaluated the diagnostic performance of the Diagnos TB AG immunoassay in 171 Tanzanians with suspected pulmonary tuberculosis (TB). The sensitivity and specificity, and positive and negative predictive values of the rapid test for the detection of pulmonary TB in this population were respectively 60.0%, 33.3%, 40.3% and 52.6%. In its current configuration, this test will not help overcome difficulties in the rapid diagnosis of TB.
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324
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Kim H, Park Y, Park J, Choi C, Jung J, Kim J, Ye S. Assessment of Setup Errors and a New PTV Margin for Prostate Cancer Patients with an Endorectal Balloon. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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325
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Scharrer K, Jung J. Die Bestimmung des Chloridgehaltes pflanzlicher und tierisdier Substanzen auf potentiometrischem Wege. ACTA ACUST UNITED AC 2009. [DOI: 10.1111/j.1439-0396.1957.tb00254.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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