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Chang WC, Hsu PI, Chen YY, Hsiao M, Lu PJ, Chen CH. Observation of peptide differences between cancer and control in gastric juice. Proteomics Clin Appl 2012; 2:55-62. [PMID: 21136779 DOI: 10.1002/prca.200780066] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Biomarkers for various diseases have been extensively searched for the past 5 years. Nevertheless, most efforts were focused on the search for protein biomarkers from serum samples. In this work, we tried to look for peptide biomarkers from gastric juice samples with MALDI-TOF-MS. More than 200 gastric juice samples from healthy people, gastric ulcer patients, duodenal ulcer patients, and cancer patients were examined. There were clear pattern differences of mass spectra among samples from healthy people and patients with different gastric diseases. We found five peptides for gastric cancer diagnosis with high sensitivity and specificity. Sequences of these five peptides, including two pepsinogen fragments, leucine zipper protein fragment, albumin fragment, and α-1-antitrypsin fragment, have been identified by mass spectrometric analysis and immuno-deplete assay with antibodies.
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Wong GHY, Hui CLM, Wong DY, Tang JYM, Chang WC, Chan SKW, Lee EHM, Xu JQ, Lin JJX, Lai DC, Tam W, Kok J, Chung DWS, Hung SF, Chen EYH. Developments in early intervention for psychosis in Hong Kong. East Asian Arch Psychiatry 2012; 22:100-104. [PMID: 23019282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The year 2011 marked the 10-year milestone of early intervention for psychosis in Hong Kong. Since 2001, the landscape of early psychosis services has changed markedly in Hong Kong. Substantial progress has been made in the areas of early intervention service implementation, knowledge generation, and public awareness promotion. Favourable outcomes attributable to the early intervention service are supported by solid evidence from local clinical research studies; early intervention service users showed improved functioning, ameliorated symptoms, and decreased hospitalisation and suicide rates. Continued development of early intervention in Hong Kong over the decade includes the introduction and maturation of several key platforms, such as the Hospital Authority Early Assessment Service for Young People with Psychosis programme, the Psychosis Studies and Intervention Unit by the University of Hong Kong, the Hong Kong Early Psychosis Intervention Society, the Jockey Club Early Psychosis Project, and the postgraduate Psychological Medicine (Psychosis Studies) programme. In this paper, we reviewed some of the major milestones in local service development with reference to features of the Hong Kong mental health system. We describe chronologically the implementation and consolidation of public early intervention services as well as recent progresses in public awareness work that are tied in with knowledge generation and transfer, and outline the prospects for early intervention in the next decade and those that follow.
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Yu YL, Chou RH, Wu CH, Wang YN, Chang WJ, Tseng YJ, Chang WC, Lai CC, Lee HJ, Huo L, Chen CH, Hung MC. Nuclear EGFR suppresses ribonuclease activity of polynucleotide phosphorylase through DNAPK-mediated phosphorylation at serine 776. J Biol Chem 2012; 287:31015-26. [PMID: 22815474 DOI: 10.1074/jbc.m112.358077] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Nuclear existence of epidermal growth factor receptor (EGFR) has been documented for more than two decades. Resistance of cancer to radiotherapy is frequently correlated with elevated EGFR expression, activity, and nuclear translocation. However, the role of nuclear EGFR (nEGFR) in radioresistance of cancers remains elusive. In the current study, we identified a novel nEGFR-associated protein, polynucleotide phosphorylase (PNPase), which possesses 3' to 5' exoribonuclease activity toward c-MYC mRNA. Knockdown of PNPase increased radioresistance. Inactivation or knock-down of EGFR enhanced PNPase-mediated c-MYC mRNA degradation in breast cancer cells, and also increased its radiosensitivity. Interestingly, the association of nEGFR with PNPase and DNA-dependent protein kinase (DNAPK) increased significantly in breast cancer cells after exposure to ionizing radiation (IR). We also demonstrated that DNAPK phosphorylates PNPase at Ser-776, which is critical for its ribonuclease activity. The phospho-mimetic S776D mutant of PNPase impaired its ribonuclease activity whereas the nonphosphorylatable S776A mutant effectively degraded c-MYC mRNA. Here, we uncovered a novel role of nEGFR in radioresistance, and that is, upon ionizing radiation, nEGFR inactivates the ribonuclease activity of PNPase toward c-MYC mRNA through DNAPK-mediated Ser-776 phosphorylation, leading to increase of c-MYC mRNA, which contributes to radioresistance of cancer cells.
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Wang Y, Ding Q, Yen CJ, Xia W, Izzo JG, Lang JY, Li CW, Hsu JL, Miller SA, Wang X, Lee DF, Hsu JM, Huo L, Labaff AM, Liu D, Huang TH, Lai CC, Tsai FJ, Chang WC, Chen CH, Wu TT, Buttar NS, Wang KK, Wu Y, Wang H, Ajani J, Hung MC. The crosstalk of mTOR/S6K1 and Hedgehog pathways. Cancer Cell 2012; 21:374-87. [PMID: 22439934 PMCID: PMC3350095 DOI: 10.1016/j.ccr.2011.12.028] [Citation(s) in RCA: 295] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 10/13/2011] [Accepted: 12/30/2011] [Indexed: 12/17/2022]
Abstract
Esophageal adenocarcinoma (EAC) is the most prevalent esophageal cancer type in the United States. The TNF-α/mTOR pathway is known to mediate the development of EAC. Additionally, aberrant activation of Gli1, downstream effector of the Hedgehog (HH) pathway, has been observed in EAC. In this study, we found that an activated mTOR/S6K1 pathway promotes Gli1 transcriptional activity and oncogenic function through S6K1-mediated Gli1 phosphorylation at Ser84, which releases Gli1 from its endogenous inhibitor, SuFu. Moreover, elimination of S6K1 activation by an mTOR pathway inhibitor enhances the killing effects of the HH pathway inhibitor. Together, our results established a crosstalk between the mTOR/S6K1 and HH pathways, which provides a mechanism for SMO-independent Gli1 activation and also a rationale for combination therapy for EAC.
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Hwang SH, Hicks K, Ahn JK, Nakano T, Ahn DS, Chang WC, Chen JY, Daté S, Ejiri H, Fujimura H, Fujiwara M, Fukui S, Gohn W, Hotta T, Imai K, Ishikawa T, Joo K, Kato Y, Kohri H, Kon Y, Lee HS, Maeda Y, Miyabe M, Mibe T, Morino Y, Muramatsu N, Nakatsugawa Y, Niiyama M, Noumi H, Oh Y, Ohashi Y, Ohta T, Oka M, Parker J, Rangacharyulu C, Ryu SY, Sawada T, Sugaya Y, Sumihama M, Tsunemi T, Uchida M, Ungaro M, Yosoi M. Spin-density matrix elements for γp→K*0Σ+ at Eγ=1.85-3.0 GeV with evidence for the κ(800) meson exchange. PHYSICAL REVIEW LETTERS 2012; 108:092001. [PMID: 22463625 DOI: 10.1103/physrevlett.108.092001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Indexed: 05/31/2023]
Abstract
The exclusive reaction γp→K(+)π(-)Σ(+) was measured for the first time using linearly polarized photons at beam energies from 1.85 to 2.96 GeV. Angular distributions in the rest frame of the K(+)π(-) system were fitted to extract spin-density matrix elements of the K(*0) decay. The measured parity spin asymmetry shows that natural-parity exchange is dominant in this reaction. This result clearly indicates the need for t-channel exchange of the κ(800) scalar meson.
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Wong GHY, Hui CLM, Tang JYM, Chiu CPY, Lam MML, Chan SKW, Chang WC, Chen EYH. Screening and assessing ideas and delusions of reference using a semi-structured interview scale: a validation study of the Ideas of Reference Interview Scale (IRIS) in early psychosis patients. Schizophr Res 2012; 135:158-63. [PMID: 22244183 DOI: 10.1016/j.schres.2011.12.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 11/24/2011] [Accepted: 12/13/2011] [Indexed: 11/20/2022]
Abstract
BACKGROUND Ideas and delusions of reference (IOR/DOR) are an important but underrecognized research target. Difficulty in their reliable assessment has been a barrier. A screening and assessment tool incorporating a self-information processing framework, the Ideas of Reference Interview Scale (IRIS), was developed and validated in patients with early psychosis. METHODS Comprehensive review of IOR/DOR phenomena in the literature and pilot interviews were conducted for scale item development. Self-referential themes were summarized into 15 items. A consecutive sample of 137 outpatients with early psychosis was interviewed using IRIS. Their IOR/DOR experiences were also rated independently by clinicians on the Scale for the Assessment of Positive Symptoms (SAPS) and self-rated using the IOR subscale on the Schizotypal Personality Questionnaire (SPQ). Inter-rater reliability of IRIS was examined in a subsample of 15 participants. RESULTS IRIS demonstrated good internal consistency (Cronbach's alpha 0.80), inter-rater reliability (intraclass correlation coefficient 0.95), and divergent validity with other symptoms. IRIS correlated satisfactorily with the IOR/DOR item or subscale on SAPS and SPQ (Spearman's rho = 0.71 and 0.47, respectively). DISCUSSION IRIS provided a reliable high-resolution tool for progressing single-symptom research into IOR/DOR, a potential target feature of schizophrenia. The scale allows future investigation into self-referential processing and detailed phenomenological comparison in different clinical, subclinical, and healthy populations.
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Liu M, Lee DF, Chen CT, Yen CJ, Li LY, Lee HJ, Chang CJ, Chang WC, Hsu JM, Kuo HP, Xia W, Wei Y, Chiu PC, Chou CK, Du Y, Dhar D, Karin M, Chen CH, Hung MC. IKKα activation of NOTCH links tumorigenesis via FOXA2 suppression. Mol Cell 2012; 45:171-84. [PMID: 22196886 PMCID: PMC3268914 DOI: 10.1016/j.molcel.2011.11.018] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 09/27/2011] [Accepted: 11/01/2011] [Indexed: 12/15/2022]
Abstract
Proinflammatory cytokine TNFα plays critical roles in promoting malignant cell proliferation, angiogenesis, and tumor metastasis in many cancers. However, the mechanism of TNFα-mediated tumor development remains unclear. Here, we show that IKKα, an important downstream kinase of TNFα, interacts with and phosphorylates FOXA2 at S107/S111, thereby suppressing FOXA2 transactivation activity and leading to decreased NUMB expression, and further activates the downstream NOTCH pathway and promotes cell proliferation and tumorigenesis. Moreover, we found that levels of IKKα, pFOXA2 (S107/111), and activated NOTCH1 were significantly higher in hepatocellular carcinoma tumors than in normal liver tissues and that pFOXA2 (S107/111) expression was positively correlated with IKKα and activated NOTCH1 expression in tumor tissues. Therefore, dysregulation of NUMB-mediated suppression of NOTCH1 by TNFα/IKKα-associated FOXA2 inhibition likely contributes to inflammation-mediated cancer pathogenesis. Here, we report a TNFα/IKKα/FOXA2/NUMB/NOTCH1 pathway that is critical for inflammation-mediated tumorigenesis and may provide a target for clinical intervention in human cancer.
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Bau HJ, Hung SC, Chang WC, Chen YK. First Report of Group 16SrXII Phytoplasma Associated with Papaya Yellows in Taiwan. PLANT DISEASE 2011; 95:1581. [PMID: 30732004 DOI: 10.1094/pdis-05-11-0407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phytoplasmas have been reported to cause various disorders in papaya (Carica papaya L.), including dieback, mosaic, and yellow crinkle in Australia, Nivun Haamir dieback in Israel, and bunchy top-like disease in Cuba (1). Papaya is an economically important crop in Taiwan, and therefore, is monitored for viral infections. In 2005, papaya plants showing chlorosis, yellows and shriveling of leaves, dieback and lateral growth of branches, bending of apical branches, latexosis of fruits, and brown necrosis in phloem tissues were observed in southern Taiwan. Examination by an electron microscope revealed the presence of pleomorphic phytoplasma cells in sieve tubes of the phloem of petioles and leaf veins of diseased plants. Total DNA was extracted individually from at least three diseased plants at each location with a commercial DNA preparation kit (Axygen Scientific, Union City, CA) and used for amplification of the phytoplasma 16S rRNA gene in PCR with universal primer pairs P1 and Tint (3). The full-length 16S rRNA gene has been amplified and cloned. Sequence analysis revealed that the fragment was 1,581 bp long (GenBank Accession No. AJ919994) and shared 99.6% sequence identity with that of the 'Candidatus Phytoplasma solani' reference strain (GenBank Accession No. AF248959). A virtual restriction fragment length polymorphism analysis of the 16S rDNA sequence amplified from the R16F2n/R16R2 primers (2) was performed with iPhyClassifier (4) and pDRAW32. In silico restriction analysis identified the studied papaya phytoplasma as a subgroup 16SrXII-A strain. The sequence had 97 to 98% sequence identity with papaya phytoplasmas of the 16SrXII group in Australia (GenBank Accession No. Y10095), Israel (GenBank Accession No. AY903951), and Cuba (GenBank Accession No. AY725234). The disease incidence was 30 to 35% during the 2006 to 2010 growing seasons, and field surveys indicated that the disease has spread to central Taiwan with sporadic occurrence in recent years. To our knowledge, this is the first report of phytoplasma associated with papaya yellows in Taiwan. References: (1) Y. Arocha et al. Int. J. Syst. Evol. Microbiol. 55:2451, 2005. (2) I. M. Lee et al. Int. J. Syst. Bacteriol. 48:1153, 1998. (3) C. D. Smart et al. Appl. Environ. Microbiol. 62:2988, 1996. (4) Y. Zhao et al. Int. J. Syst. Evol. Microbiol. 59:2582, 2009.
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Chang WC, Hui CLM, Tang JYM, Wong GHY, Lam MML, Chan SKW, Chen EYH. Persistent negative symptoms in first-episode schizophrenia: a prospective three-year follow-up study. Schizophr Res 2011; 133:22-8. [PMID: 21968080 DOI: 10.1016/j.schres.2011.09.006] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 08/22/2011] [Accepted: 09/09/2011] [Indexed: 12/15/2022]
Abstract
BACKGROUND Negative symptoms are a core feature of schizophrenia. The evolution and trajectory of primary negative symptoms were under-studied. We aimed at evaluating the prevalence and stability of primary negative symptoms, and factors associated with persistent primary negative symptoms in a first-episode sample. METHOD Ninety-three Hong Kong Chinese aged 18 to 55 years presenting with first-episode schizophrenia-spectrum disorder were studied. Data on premorbid adjustment, socio-demographics, and baseline clinical and cognitive profiles were obtained. Psychopathological and vocational reassessments were conducted at 12, 24 and 36 months. Primary negative symptoms were defined as the presence of clinically significant negative symptoms excluding depression and extra-pyramidal signs. RESULTS At baseline, 25.8% of subjects exhibited primary negative symptoms. A quarter of patients had their initial primary negative symptoms status retained 12 months after treatment initiation. In both Year 2 and Year 3 of study period, around 70% of subjects had their primary negative symptoms status maintained for 12 months. At the end of three-year follow-up, 23.7% were categorized as having persistent primary negative symptoms. Male sex, unemployment at intake, prolonged duration of untreated psychosis, poorer premorbid academic and social functioning, poorer insight and worse vocational outcome were found to be associated with persistent primary negative symptoms. CONCLUSION Clinical status of primary negative symptoms in first-episode schizophrenia-spectrum disorder was unstable in the initial year of treatment. Baseline symptom assessment may not reliably predict development of persistent primary negative symptoms. Studying negative symptoms should take into account the longitudinal perspective, especially in the early course of psychotic disorders.
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Angerami A, Aoki K, Apadula N, Aphecetche L, Aramaki Y, Asai J, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Bai M, Baksay G, Baksay L, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Basye AT, Bathe S, Batsouli S, Baublis V, Baumann C, Bazilevsky A, Belikov S, Belmont R, Bennett R, Berdnikov A, Berdnikov Y, Bhom JH, Bickley AA, Blau DS, Boissevain JG, Bok JS, Borel H, Boyle K, Brooks ML, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Camacho CM, Campbell S, Caringi A, Chang BS, Chang WC, Charvet JL, Chen CH, Chernichenko S, Chi CY, Chiu M, Choi IJ, Choi JB, Choudhury RK, Christiansen P, Chujo T, Chung P, Churyn A, Chvala O, Cianciolo V, Citron Z, Cole BA, Conesa del Valle Z, Connors M, Constantin P, Csanád M, Csörgo T, Dahms T, Dairaku S, Danchev I, Das K, Datta A, David G, Dayananda MK, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dharmawardane KV, Dietzsch O, Dion A, Donadelli M, Drapier O, Drees A, Drees KA, Dubey AK, Durham JM, Durum A, Dutta D, Dzhordzhadze V, D'Orazio L, Edwards S, Efremenko YV, Ellinghaus F, Engelmore T, Enokizono A, En'yo H, Esumi S, Eyser KO, Fadem B, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fusayasu T, Garishvili I, Glenn A, Gong H, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grim G, Grosse Perdekamp M, Gunji T, Gustafsson HÅ, Hadj Henni A, Haggerty JS, Hahn KI, Hamagaki H, Hamblen J, Han R, Hanks J, Hartouni EP, Haruna K, Haslum E, Hayano R, He X, Heffner M, Hemmick TK, Hester T, Hill JC, Hohlmann M, Holzmann W, Homma K, Hong B, Horaguchi T, Hornback D, Huang S, Ichihara T, Ichimiya R, Iinuma H, Ikeda Y, Imai K, Imrek J, Inaba M, Isenhower D, Ishihara M, Isobe T, Issah M, Isupov A, Ivanischev D, Iwanaga Y, Jacak BV, Jia J, Jiang X, Jin J, Johnson BM, Jones T, Joo KS, Jouan D, Jumper DS, Kajihara F, Kametani S, Kamihara N, Kamin J, Kang JH, Kapustinsky J, Karatsu K, Kasai M, Kawall D, Kawashima M, Kazantsev AV, Kempel T, Khanzadeev A, Kijima KM, Kikuchi J, Kim A, Kim BI, Kim DH, Kim DJ, Kim E, Kim EJ, Kim SH, Kim YJ, Kinney E, Kiriluk K, Kiss Á, Kistenev E, Klay J, Klein-Boesing C, Kochenda L, Komkov B, Konno M, Koster J, Kozlov A, Král A, Kravitz A, Kunde GJ, Kurita K, Kurosawa M, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Layton D, Lebedev A, Lee DM, Lee J, Lee KB, Lee KS, Lee T, Leitch MJ, Leite MAL, Lenzi B, Li X, Lichtenwalner P, Liebing P, Linden Levy LA, Liška T, Litvinenko A, Liu H, Liu MX, Love B, Lynch D, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mannel E, Mao Y, Mašek L, Masui H, Matathias F, McCumber M, McGaughey PL, McGlinchey D, Means N, Meredith B, Miake Y, Mibe T, Mignerey AC, Mikeš P, Miki K, Milov A, Mishra M, Mitchell JT, Mohanty AK, Moon HJ, Morino Y, Morreale A, Morrison DP, Moukhanova TV, Mukhopadhyay D, Murakami T, Murata J, Nagamiya S, Nagle JL, Naglis M, Nagy MI, Nakagawa I, Nakamiya Y, Nakamura KR, Nakamura T, Nakano K, Nam S, Newby J, Nguyen M, Nihashi M, Niita T, Nouicer R, Nyanin AS, Oakley C, O'Brien E, Oda SX, Ogilvie CA, Oka M, Okada K, Onuki Y, Oskarsson A, Ouchida M, Ozawa K, Pak R, Palounek APT, Pantuev V, Papavassiliou V, Park IH, Park J, Park SK, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Petti R, Pinkenburg C, Pisani RP, Proissl M, Purschke ML, Purwar AK, Qu H, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reygers K, Riabov V, Riabov Y, Richardson E, Roach D, Roche G, Rolnick SD, Rosati M, Rosen CA, Rosendahl SSE, Rosnet P, Rukoyatkin P, Ružička P, Rykov VL, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakashita K, Samsonov V, Sano S, Sato T, Sawada S, Sedgwick K, Seele J, Seidl R, Semenov AY, Semenov V, Seto R, Sharma D, Shein I, Shibata TA, Shigaki K, Shimomura M, Shoji K, Shukla P, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh BK, Singh CP, Singh V, Slunečka M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sukhanov A, Sziklai J, Takagui EM, Taketani A, Tanabe R, Tanaka Y, Taneja S, Tanida K, Tannenbaum MJ, Tarafdar S, Taranenko A, Tarján P, Themann H, Thomas D, Thomas TL, Togawa M, Toia A, Tomášek L, Tomita Y, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Vale C, Valle H, van Hecke HW, Vazquez-Zambrano E, Veicht A, Velkovska J, Vértesi R, Vinogradov AA, Virius M, Vossen A, Vrba V, Vznuzdaev E, Wang XR, Watanabe D, Watanabe K, Watanabe Y, Wei F, Wei R, Wessels J, White SN, Winter D, Woody CL, Wright RM, Wysocki M, Xie W, Yamaguchi YL, Yamaura K, Yang R, Yanovich A, Ying J, Yokkaichi S, You Z, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zolin L. Cold nuclear matter effects on J/ψ yields as a function of rapidity and nuclear geometry in d+A collisions at sqrt[s(NN)]=200 GeV. PHYSICAL REVIEW LETTERS 2011; 107:142301. [PMID: 22107186 DOI: 10.1103/physrevlett.107.142301] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Indexed: 05/31/2023]
Abstract
We present measurements of J/ψ yields in d+Au collisions at sqrt[s(NN)]=200 GeV recorded by the PHENIX experiment and compare them with yields in p+p collisions at the same energy per nucleon-nucleon collision. The measurements cover a large kinematic range in J/ψ rapidity (-2.2<y<2.4) with high statistical precision and are compared with two theoretical models: one with nuclear shadowing combined with final state breakup and one with coherent gluon saturation effects. In order to remove model dependent systematic uncertainties we also compare the data to a simple geometric model. The forward rapidity data are inconsistent with nuclear modifications that are linear or exponential in the density weighted longitudinal thickness, such as those from the final state breakup of the bound state.
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Huo L, Wang YN, Xia W, Hsu SC, Lai CC, Li LY, Chang WC, Wang Y, Hsu MC, Yu YL, Huang TH, Ding Q, Chen CH, Tsai CH, Hung MC. Abstract 1086: RHA plays an important role in EGFR-mediated gene transcription in cancer cells. Cancer Res 2011. [DOI: 10.1158/1538-7445.am2011-1086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
EGF treatment induces the translocation of its receptor (i.e. EGFR) from the cell surface into the nucleus. Nuclear expression of EGFR is negatively correlated with overall survival of cancer patients and EGFR nuclear translocation is important for cancer cell's resistance to the treatment with Cetuximab, cisplatin and radiation. Moreover, EGFR in the nucleus can associates with other proteins including STAT3, STAT5A, DNA-PK and PCNA to regulate cell transformation, proliferation, and DNA repair and replication. It has been demonstrated that nuclear EGFR regulates gene transcription through its binding to an AT-rich sequence (ATRS) of target gene promoter. However, EGFR does not have a DNA-binding domain and there is no evidence to support the direct binding of EGFR to the specific DNA sequence. Thus, identification of a DNA-binding partner of nuclear EGFR is crucial for us to understand how EGFR regulates gene transcription in the nucleus. Using a non-biased approach, we identified RNA helicase A (i.e. RHA), which is a highly conserved, multiple functional transcriptional activator, could interact with nuclear EGFR upon EGF stimulation in several cancer cells. The EGFR/RHA complex then associated with gene promoter through binding of RHA to the AT-rich sequence of the promoter to activate its transcription. Knockdown of RHA expression was found to abrogate the binding of EGFR to its target gene promoter, thereby reducing EGF/EGFR-induced gene expression. Moreover, interruption of EGFR-RHA interaction decreased EGFR-induced promoter activity. Interestingly, we found that the EGFR/RHA-regulated gene promoter activity is dependent on the EGFR tyrosine kinase activity but independent of RHA helicase activity. Finally, we observed a positive correlation among nuclear expression of EGFR, RHA and cyclin D1 in human breast cancer tissue samples. These results, taken together, indicate that RHA is an important mediator for EGFR-induced gene transactivation in cancer cells.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 1086. doi:10.1158/1538-7445.AM2011-1086
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Huang WC, Chen YJ, Li LY, Wei YL, Hsu SC, Tsai SL, Chiu PC, Huang WP, Wang YN, Chen CH, Chang WC, Chang WC, Chen AJE, Tsai CH, Hung MC. Nuclear translocation of epidermal growth factor receptor by Akt-dependent phosphorylation enhances breast cancer-resistant protein expression in gefitinib-resistant cells. J Biol Chem 2011; 286:20558-68. [PMID: 21487020 DOI: 10.1074/jbc.m111.240796] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Epidermal growth factor receptor (EGFR), an aberrantly overexpressed or activated receptor-tyrosine kinase in many cancers, plays a pivotal role in cancer progression and has been an attractive target for cancer therapy. Gefitinib and erlotinib, two EGFR-tyrosine kinase inhibitors, have been approved for non-small cell lung cancer. However, durable clinical efficacy of these EGFR inhibitors is severely limited by the emergence of acquired resistance. For example, the expression of breast cancer-resistant protein (BCRP/ABCG2) has been shown to confer acquired resistance of wild-type EGFR (wtEGFR)-expressing cancer cells to gefitinib. However, the underlying molecular mechanisms still remain unclear. Here, we show that wtEGFR expression is elevated in the nucleus of acquired gefitinib-resistant cancer cells. Moreover, nuclear translocation of EGFR requires phosphorylation at Ser-229 by Akt. In the nucleus, EGFR then targets the proximal promoter of BCRP/ABCG2 and thereby enhances its gene transcription. The nuclear EGFR-mediated BCRP/ABCG2 expression may contribute at least in part to the acquired resistance of wtEGFR-expressing cancer cells to gefitinib. Our findings shed light on the role of nuclear EGFR in the sensitivity of wtEGFR-expressing cancer cells to EGFR tyrosine kinase inhibitors and also deciphered a putative molecular mechanism contributing to gefitinib resistance through BCRP/ABCG2 expression.
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Hsieh CC, Lin TH, Chang HW, Chang CW, Chang WC, Yang CC. Effect of dopants on the soft magnetic properties and high frequency characteristics of FeCoBM (M = Ti, Nb, Hf, and Ta) thin films. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2011; 11:2752-2755. [PMID: 21449469 DOI: 10.1166/jnn.2011.2726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Effect of dopants on the soft magnetic properties and high frequency characteristics of FeCoBM thin films (M = Ti, Nb, Hf, and Ta) have been studied. For (Fe0.55Co0.45)(100-x)B(x) (x = 5-15) thin films, with the increase of B content, the resistivity was increased because B could decrease the crystallinity of the films. The (Fe0.55Co0.45)90B10 thin film showed the optimum properties, where 4piM(s) = 16.1 kG, H(ce) = 64.2 Oe, H(ch) = 13.5 Oe, H(k) = 310 Oe and p = 338 microomega-cm. To reduce the coercivity of the film, the elements M, including Ti, Nb, Hf, and Ta, were selected to substitute for B in the FeCoB films. It was found that (Fe0.55Co0.45)90B6Ti2Nb2 thin film after annealing at a temperature of 200 degrees C for 30 min showed the optimal properties, where 4piM(s) = 15.8 kG, H(ce) = 4.8 Oe, H(ch) = 3.6 Oe, H(k) = 224 Oe and p = 290 microomega-cm. The theoretically calculated ferromagnetic resonance frequency of the developed films can be higher than 5 GHz.
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Chang HW, Chen CH, Hsieh CC, Chang WC. Magnetic properties of melt spun mischmetals-Fe-Ti-B nanocomposite ribbons. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2011; 11:2756-2760. [PMID: 21449470 DOI: 10.1166/jnn.2011.2727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Magnetic properties and phase evolution of melt spun R9.5Fe(bal.)Ti2B10 (R = MM(A), MM(B), MM(C), Pr, Nd, Ce, and La) nanocomposites have been investigated. Based on the results for the X-ray diffraction and thermal magnetic analysis, only 2:14:1 and alpha-Fe phases appear for R = MM(A) and Pr, and an additional Fe3B phase is present for R = MM(B), MM(C), Nd, and Ce. Besides, the uniform fine grain size of 20-40 nm is almost unchanged for the ribbons with various rare earth elements. Accordingly, magnetic properties of MM9.5Fe(bal.)Ti2B10 nanocomposites are mainly dominated by the composition of Mischmetals or the rare earth elements adopted, and are consistent with the outcome for the combinations of magnetic properties of their corresponding R9.5Fe(bal.)Ti2B10 nanocomposites. In this study, the optimum magnetic properties of B(r) = 9.3 kG, (i)H(c) = 12.1 kOe and (BH)(max) = 18.0 MGOe can be achieved for MM(B)9.5Fe(bal.)Ti2B10 nanocomposites. They not only exhibit comparable magnetic properties to the commercial available powders but also reduce the original material cost effectively.
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Lu CH, Lee RKK, Hwu YM, Chu SL, Chen YJ, Chang WC, Lin SP, Li SH. SERPINE2, a Serine Protease Inhibitor Extensively Expressed in Adult Male Mouse Reproductive Tissues, May Serve as a Murine Sperm Decapacitation Factor1. Biol Reprod 2011; 84:514-25. [DOI: 10.1095/biolreprod.110.085100] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Chang HW, Guo CS, Hsieh CC, Chang WC. Magnetic properties, phase evolution, and microstructure of melt spun Hf-substituted Sm(Co0.97Hf0.03)(x)Cy (x = 5-9; y = 0-0.1) nanocomposites. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2011; 11:2722-2725. [PMID: 21449462 DOI: 10.1166/jnn.2011.2725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Magnetic properties, phase evolution, and microstructure of melt spun Hf-substituted Sm(Co0.97Hf0.03)(x)Cy (x = 5-9; y = 0-0.1) ribbons quenched at the wheel speed of 40 m/s are investigated. X-ray diffraction analysis shows that the main phases existed in Sm(Co0.97Hf0.03)(x) ribbons are 1:5 phase for x = 5-5.5; 1:5 and 1:7 phases for x = 6; 1:7 phase for x = 6.5-7.5; 1:7 and 2:17 phases for x = 8; and only 2:17 phase for x = 8.5-9, respectively. For Sm(Co0.97Hf0.03)(x) (x = 5-9) ribbons, the optimum magnetic properties of B(r) = 5.6 kG, (i)H(c)= 15.6 kOe and (BH)(max) = 7.1 MGOe are obtained for Sm(Co0.97Hf0.03)6.5 ribbons. Furthermore, a slight amount of C addition in Sm(Co0.97Hf0.03)(x) ribbons slightly modify phase constitution and effectively refine the grain size from 200-700 nm for C free ribbons to 10-70 nm, strengthening the exchange coupling effect between magnetic grains of the ribbons. As a result, magnetic properties are further improved. The magnetic properties of B(r) = 6.9 kG, (i)H(c) = 9.2 kOe and (BH)(max) = 10.0 MGOe can be achieved for Sm(Co0.97Hf0.03)7.5C0.1 nanocomposites.
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Huang LC, Ye JC, Hsieh CH, Chen LM, Lin TY, Hung YC, Chang WC. PTEN, tau-AP-3, thymidylate synthase immunohistochemistry scoring expression in patients with uterine leiomyomas, uterine smooth muscle tumors of uncertain malignancy potential and uterine leiomyosarcomas. EUR J GYNAECOL ONCOL 2011; 32:496-499. [PMID: 22053660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Uterine smooth muscle tumors are frequently classified as benign and malignant. However, an assortment of mitotic counts and nuclear atypia can be indecisive between uncertain malignant potential, and malignant uterine smooth muscle tumors. We applied three immunohistochemical parameters to distinguish between cases of benign, malignant, and those with uncertain malignant histology.
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Lu PJ, Hsu PI, Chen CH, Hsiao M, Chang WC, Tseng HH, Lin KH, Chuah SK, Chen HC. Gastric juice acidity in upper gastrointestinal diseases. World J Gastroenterol 2010; 16:5496-501. [PMID: 21086570 PMCID: PMC2988245 DOI: 10.3748/wjg.v16.i43.5496] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To search the independent factors determining gastric juice acidity and to investigate the acidity of gastric juices in various benign and malignant upper gastrointestinal diseases.
METHODS: Fasting gastric juice acidity of 165 healthy subjects and 346 patients with esophageal ulcer (n = 21), gastric ulcer (n = 136), duodenal ulcer (n = 100) or gastric cancer (n = 89) were measured and compared. Additionally, gastric specimens were taken from the antrum and body for rapid urease test and histological examination.
RESULTS: Multivariate analysis revealed that bile stain of gastric juice, high acute inflammatory score of the corpus, and atrophy of the corpus were independent risk factors for the development of gastric hypoacidity with odds ratios of 3.1 (95% CI: 1.3-7.3), 3.1 (95% CI: 1.2-7.9) and 3.5 (95% CI: 1.3-9.2). Esophageal ulcer and duodenal ulcer patients had a lower pH level (1.9 and 2.1 vs 2.9, both P < 0.05) of gastric juices than healthy subjects. In contrast, gastric ulcer and gastric cancer patients had a higher pH level (3.4 and 6.6 vs 2.9, both P < 0.001) than healthy controls. Hypoacidity existed in 22%, 5%, 29%, 5% and 88% of healthy subjects, esophageal ulcer, gastric ulcer, duodenal ulcer and gastric cancer patients, respectively.
CONCLUSION: Bile reflux, atrophy and dense neutrophil infiltrate of the corpus are three independent factors determining the acidity of gastric juice.
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Li SH, Lu CH, Li RKK, Hwu YM, Chen YJ, Chang WC, Lin SP. SERPINE2, a Serine Protease Inhibitor Extensively Expressed in Adult Male Mouse Reproductive Tissues, May Serve as a Murine Sperm Decapacitation Factor. Biol Reprod 2010. [DOI: 10.1093/biolreprod/83.s1.522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Chang WC, Huang MS, Yang CJ, Wang WY, Lai TC, Hsiao M, Chen CH. Dermcidin identification from exhaled air for lung cancer diagnosis. Eur Respir J 2010; 35:1182-5. [PMID: 20436176 DOI: 10.1183/09031936.00169509] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Aoki K, Aphecetche L, Aramaki Y, Asai J, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Bai M, Baksay G, Baksay L, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Basye AT, Bathe S, Batsouli S, Baublis V, Baumann C, Bazilevsky A, Belikov S, Belmont R, Bennett R, Berdnikov A, Berdnikov Y, Bickley AA, Boissevain JG, Bok JS, Borel H, Boyle K, Brooks ML, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Camacho CM, Campbell S, Chang BS, Chang WC, Charvet JL, Chen CH, Chernichenko S, Chi CY, Chiu M, Choi IJ, Choudhury RK, Christiansen P, Chujo T, Chung P, Churyn A, Chvala O, Cianciolo V, Citron Z, Cole BA, Connors M, Constantin P, Csanád M, Csörgo T, Dahms T, Dairaku S, Danchev I, Das K, Datta A, David G, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Donadelli M, Drapier O, Drees A, Drees KA, Dubey AK, Durham JM, Durum A, Dutta D, Dzhordzhadze V, Edwards S, Efremenko YV, Ellinghaus F, Engelmore T, Enokizono A, En'yo H, Esumi S, Eyser KO, Fadem B, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fusayasu T, Garishvili I, Glenn A, Gong H, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Gustafsson HA, Hadj Henni A, Haggerty JS, Hahn KI, Hamagaki H, Hamblen J, Hanks J, Han R, Hartouni EP, Haruna K, Haslum E, Hayano R, Heffner M, Hegyi S, Hemmick TK, Hester T, He X, Hill JC, Hohlmann M, Holzmann W, Homma K, Hong B, Horaguchi T, Hornback D, Huang S, Ichihara T, Ichimiya R, Ide J, Iinuma H, Ikeda Y, Imai K, Imrek J, Inaba M, Isenhower D, Ishihara M, Isobe T, Issah M, Isupov A, Ivanischev D, Jacak BV, Jia J, Jin J, Johnson BM, Joo KS, Jouan D, Jumper DS, Kajihara F, Kametani S, Kamihara N, Kamin J, Kang JH, Kapustinsky J, Kawall D, Kawashima M, Kazantsev AV, Kempel T, Khanzadeev A, Kijima KM, Kikuchi J, Kim BI, Kim DH, Kim DJ, Kim EJ, Kim E, Kim SH, Kim YJ, Kinney E, Kiriluk K, Kiss A, Kistenev E, Klay J, Klein-Boesing C, Kochenda L, Komkov B, Konno M, Koster J, Kotchetkov D, Kozlov A, Král A, Kravitz A, Kunde GJ, Kurita K, Kurosawa M, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Layton D, Lebedev A, Lee DM, Lee J, Lee KB, Lee K, Lee KS, Lee T, Leitch MJ, Leite MAL, Leitner E, Lenzi B, Liebing P, Linden Levy LA, Liska T, Litvinenko A, Liu H, Liu MX, Li X, Love B, Luechtenborg R, Lynch D, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mannel E, Mao Y, Masek L, Masui H, Matathias F, McCumber M, McGaughey PL, Means N, Meredith B, Miake Y, Mignerey AC, Mikes P, Miki K, Milov A, Mishra M, Mitchell JT, Mohanty AK, Morino Y, Morreale A, Morrison DP, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagle JL, Naglis M, Nagy MI, Nakagawa I, Nakamiya Y, Nakamura T, Nakano K, Newby J, Nguyen M, Niita T, Nouicer R, Nyanin AS, O'Brien E, Oda SX, Ogilvie CA, Okada K, Oka M, Onuki Y, Oskarsson A, Ouchida M, Ozawa K, Pak R, Palounek APT, Pantuev V, Papavassiliou V, Park IH, Park J, Park SK, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Pisani RP, Proissl M, Purschke ML, Purwar AK, Qu H, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reygers K, Riabov V, Riabov Y, Richardson E, Roach D, Roche G, Rolnick SD, Rosati M, Rosen CA, Rosendahl SSE, Rosnet P, Rukoyatkin P, Ruzicka P, Rykov VL, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakashita K, Samsonov V, Sano S, Sato T, Sawada S, Sedgwick K, Seele J, Seidl R, Semenov AY, Semenov V, Seto R, Sharma D, Shein I, Shibata TA, Shigaki K, Shimomura M, Shoji K, Shukla P, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh BK, Singh CP, Singh V, Slunecka M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Sparks NA, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sukhanov A, Sziklai J, Takagui EM, Taketani A, Tanabe R, Tanaka Y, Tanida K, Tannenbaum MJ, Tarafdar S, Taranenko A, Tarján P, Themann H, Thomas TL, Togawa M, Toia A, Tomásek L, Tomita Y, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Vale C, Valle H, van Hecke HW, Vazquez-Zambrano E, Veicht A, Velkovska J, Vértesi R, Vinogradov AA, Virius M, Vrba V, Vznuzdaev E, Wang XR, Watanabe D, Watanabe K, Watanabe Y, Wei F, Wei R, Wessels J, White SN, Winter D, Wood JP, Woody CL, Wright RM, Wysocki M, Xie W, Yamaguchi YL, Yamaura K, Yang R, Yanovich A, Ying J, Yokkaichi S, Young GR, Younus I, You Z, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zolin L. Transition in yield and azimuthal shape modification in dihadron correlations in relativistic heavy ion collisions. PHYSICAL REVIEW LETTERS 2010; 104:252301. [PMID: 20867367 DOI: 10.1103/physrevlett.104.252301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2010] [Indexed: 05/29/2023]
Abstract
Hard-scattered parton probes produced in collisions of large nuclei indicate large partonic energy loss, possibly with collective produced-medium response to the lost energy. We present measurements of π^{0} trigger particles at transverse momenta p{T}{t}=4-12 GeV/c and associated charged hadrons (p{T}{a}=0.5-7 GeV/c) vs relative azimuthal angle Δϕ in Au+Au and p+p collisions at sqrt[s{NN}]=200 GeV. The Au+Au distribution at low p{T}{a}, whose shape has been interpreted as a medium effect, is modified for p{T}{t}<7 GeV/c. At higher p{T}{t}, the data are consistent with unmodified or very weakly modified shapes, even for the lowest measured p{T}{a}, which quantitatively challenges some medium response models. The associated yield of hadrons opposing the trigger particle in Au+Au relative to p+p (I{AA}) is suppressed at high p{T} (I{AA}≈0.35-0.5), but less than for inclusive suppression (R{AA}≈0.2).
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Kohri H, Ahn DS, Ahn JK, Akimune H, Asano Y, Chang WC, Daté S, Ejiri H, Fukui S, Fujimura H, Fujiwara M, Hasegawa S, Hicks K, Hosaka A, Hotta T, Imai K, Ishikawa T, Iwata T, Kawai H, Kim ZY, Kino K, Kumagai N, Makino S, Matsuda T, Matsumura T, Matsuoka N, Mibe T, Miyabe M, Miyachi Y, Morita M, Muramatsu N, Nakano T, Nam SI, Niiyama M, Nomachi M, Ohashi Y, Ohkuma H, Ooba T, Oshuev DS, Rangacharyulu C, Sakaguchi A, Sasaki T, Shagin PM, Shiino Y, Shimizu A, Shimizu H, Sugaya Y, Sumihama M, Titov AI, Toi Y, Toyokawa H, Wakai A, Wang CW, Wang SC, Yonehara K, Yorita T, Yoshimura M, Yosoi M, Zegers RGT. Near-threshold Lambda(1520) production by the gamma(p)-->K{+}Lambda(1520) reaction at forward K+ angles. PHYSICAL REVIEW LETTERS 2010; 104:172001. [PMID: 20482102 DOI: 10.1103/physrevlett.104.172001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2009] [Indexed: 05/29/2023]
Abstract
Differential cross sections and photon-beam asymmetries for the gamma(p)-->K{+}Lambda(1520) reaction have been measured with linearly polarized photon beams at energies from the threshold to 2.4 GeV at 0.6<cos(theta){c.m.}{K}<1. A new bump structure was found at W approximately 2.11 GeV in the cross sections. The bump is not well reproduced by theoretical calculations introducing a nucleon resonance with J<or=3/2. This result suggests that the bump might be produced by a nucleon resonance possibly with J>or=5/2 or by a new reaction process, for example, an interference effect with the phi photoproduction having a similar bump structure in the cross sections.
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Wu WC, Lai CI, Huang LC, Chiu TH, Hung YC, Chang WC. Normal-sized ovarian papillary serous carcinoma: a case report. EUR J GYNAECOL ONCOL 2010; 31:567-569. [PMID: 21061803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A normal-sized ovarian papillary serous carcinoma is rare. We present the case of a 46-year-old woman with progressive abdominal fullness of one week's duration. The medical evaluation revealed abdominal carcinomatosis with normal-sized ovaries and an elevated serum CA-125 level of 147,365.8 U/ml. Cytoreductive surgery (hysterectomy, bilateral salpingo-oophorectomy, omentectomy, lymphadenectomy, infracolic omentectomy, peritoneal biopsy, washing cytology, and appendectomy) was performed. The histologic examination revealed an ovarian serous papillary carcinoma. Adjuvant chemotherapy was administered. The serum CA-125 level decreased after completion of treatment. Normal-sized ovarian serous surface papillary carcinomas should be kept in mind as an origin of disease in patients who have peritoneal carcinomatosis, which sometimes is a diagnostic dilemma of the disease source. We report this case to emphasize the clinical symptoms and importance of the early and accurate diagnosis of a normal-sized ovarian papillary serous carcinoma.
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Chen SW, Liang JA, Hung YC, Yeh LS, Chang WC, Lin WC, Yang SN, Lin FJ. Late toxicities in concurrent chemoradiotherapy using high-dose-rate intracavitary brachytherapy plus weekly cisplatin for locally advanced cervical cancer: a historical cohort comparison against two previous different treatment schemes. EUR J GYNAECOL ONCOL 2010; 31:504-509. [PMID: 21061789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
PURPOSE To determine the long-term toxicity of concurrent chemoradiotherapy (CCRT), using high-dose rate intracavitary brachytherapy (HDRICB) compared to radiation (RT) alone in patients with advanced cervical cancer using a control-cohort study. METHODS A total of 332 cases of Stage IIB-III disease were included in this comparative study. Seventy-three patients were treated with a 3-insertion schedule and labeled group A, whereas the other 146 patients with a 4-insertion schedule became group B. One hundred and thirteen patients treated by a 4-insertion protocol with concurrent weekly cisplatin were labeled group C. RESULTS The cumulative rate of grade 2 or above rectal complication was 13.7% for group A, 9.6% for the group B and 15.9% for group C (p = 0.76), whereas the grade 3 to 4 non-rectal radiation-induced intestinal injury was 6.8% for group A, 6.2% for group B and 9.7% for group C (p = 0.20). Grade 2 to 4 late bladder toxicity was higher in group C, with the cumulative rate being 5.5% for group A, 4.8% for group B and 15.0% for group C (p = 0.004). The independent factor for a rectal complication was the occurrence of a bladder complication (p = 0.01, hazard ratio 3.06). The independent factors for bladder complications were the use of CCRT (p = 0.01, hazard ratio 2.08), and the occurrence of rectal complications (p = 0.02, hazard ratio 2.77). CONCLUSIONS When treating advanced cervical cancer, HDRICB consisting of four 6 Gy insertions and weekly cisplatin shows a trend of increasing late bladder complications. The interval between drug administration and HDRICB should be kept long enough to avoid any synergistic effect of both regimens.
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson SH, Asai J, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Bai M, Baksay G, Baksay L, Baldisseri A, Barish KN, Barnes PD, Bassalleck B, Basye AT, Bathe S, Batsouli S, Baublis V, Baumann C, Bazilevsky A, Belikov S, Bennett R, Berdnikov A, Berdnikov Y, Bickley AA, Boissevain JG, Borel H, Boyle K, Brooks ML, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Camacho CM, Campbell S, Chang BS, Chang WC, Charvet JL, Chernichenko S, Chiba J, Chi CY, Chiu M, Choi IJ, Choudhury RK, Chujo T, Chung P, Churyn A, Cianciolo V, Citron Z, Cleven CR, Cole BA, Comets MP, Constantin P, Csanád M, Csörgo T, Dahms T, Dairaku S, Das K, David G, Deaton MB, Dehmelt K, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dietzsch O, Dion A, Donadelli M, Drapier O, Drees A, Drees KA, Dubey AK, Durum A, Dutta D, Dzhordzhadze V, Efremenko YV, Egdemir J, Ellinghaus F, Emam WS, Engelmore T, Enokizono A, En'yo H, Esumi S, Eyser KO, Fadem B, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fusayasu T, Gadrat S, Garishvili I, Glenn A, Gong H, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Perdekamp MG, Gunji T, Gustafsson HA, Hachiya T, Henni AH, Haegemann C, Haggerty JS, Hamagaki H, Han R, Harada H, Hartouni EP, Haruna K, Haslum E, Hayano R, Heffner M, Hemmick TK, Hester T, He X, Hiejima H, Hill JC, Hobbs R, Hohlmann M, Holzmann W, Homma K, Hong B, Horaguchi T, Hornback D, Huang S, Ichihara T, Ichimiya R, Ikeda Y, Imai K, Imrek J, Inaba M, Inoue Y, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Ivanischev D, Jacak BV, Jia J, Jin J, Jinnouchi O, Johnson BM, Joo KS, Jouan D, Kajihara F, Kametani S, Kamihara N, Kamin J, Kaneta M, Kang JH, Kanou H, Kapustinsky J, Kawall D, Kazantsev AV, Kempel T, Khanzadeev A, Kijima KM, Kikuchi J, Kim BI, Kim DH, Kim DJ, Kim E, Kim SH, Kinney E, Kiriluk K, Kiss A, Kistenev E, Kiyomichi A, Klay J, Klein-Boesing C, Kochenda L, Kochetkov V, Komkov B, Konno M, Koster J, Kotchetkov D, Kozlov A, Král A, Kravitz A, Kubart J, Kunde GJ, Kurihara N, Kurita K, Kurosawa M, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lai YS, Lajoie JG, Layton D, Lebedev A, Lee DM, Lee KB, Lee MK, Lee T, Leitch MJ, Leite MAL, Lenzi B, Liebing P, Liska T, Litvinenko A, Liu H, Liu MX, Li X, Love B, Lynch D, Maguire CF, Makdisi YI, Malakhov A, Malik MD, Manko VI, Mannel E, Mao Y, Masek L, Masui H, Matathias F, McCumber M, McGaughey PL, Means N, Meredith B, Miake Y, Mikes P, Miki K, Miller TE, Milov A, Mioduszewski S, Mishra M, Mitchell JT, Mitrovski M, Mohanty AK, Morino Y, Morreale A, Morrison DP, Moukhanova TV, Mukhopadhyay D, Murata J, Nagamiya S, Nagata Y, Nagle JL, Naglis M, Nagy MI, Nakagawa I, Nakamiya Y, Nakamura T, Nakano K, Newby J, Nguyen M, Niita T, Norman BE, Nouicer R, Nyanin AS, O'Brien E, Oda SX, Ogilvie CA, Ohnishi H, Okada H, Okada K, Oka M, Omiwade OO, Onuki Y, Oskarsson A, Ouchida M, Ozawa K, Pak R, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park J, Park WJ, Pate SF, Pei H, Peng JC, Pereira H, Peresedov V, Peressounko DY, Pinkenburg C, Purschke ML, Purwar AK, Qu H, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reuter M, Reygers K, Riabov V, Riabov Y, Roach D, Roche G, Rolnick SD, Romana A, Rosati M, Rosendahl SSE, Rosnet P, Rukoyatkin P, Ruzicka P, Rykov VL, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakashita K, Sakata H, Samsonov V, Sato S, Sato T, Sawada S, Sedgwick K, Seele J, Seidl R, Semenov AY, Semenov V, Seto R, Sharma D, Shein I, Shevel A, Shibata TA, Shigaki K, Shimomura M, Shoji K, Shukla P, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh BK, Singh CP, Singh V, Skutnik S, Slunecka M, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sukhanov A, Sziklai J, Tabaru T, Takagi S, Takagui EM, Taketani A, Tanabe R, Tanaka Y, Tanida K, Tannenbaum MJ, Taranenko A, Tarján P, Themann H, Thomas TL, Togawa M, Toia A, Tojo J, Tomásek L, Tomita Y, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Vale C, Valle H, van Hecke HW, Veicht A, Velkovska J, Vertesi R, Vinogradov AA, Virius M, Vrba V, Vznuzdaev E, Wagner M, Walker D, Wang XR, Watanabe Y, Wei F, Wessels J, White SN, Winter D, Woody CL, Wysocki M, Xie W, Yamaguchi YL, Yamaura K, Yang R, Yanovich A, Yasin Z, Ying J, Yokkaichi S, Young GR, Younus I, Yushmanov IE, Zajc WA, Zaudtke O, Zhang C, Zhou S, Zimányi J, Zolin L. Measurement of bottom versus charm as a function of transverse momentum with electron-hadron correlations in p + p collisions at square root of s = 200 GeV. PHYSICAL REVIEW LETTERS 2009; 103:082002. [PMID: 19792719 DOI: 10.1103/physrevlett.103.082002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2009] [Indexed: 05/28/2023]
Abstract
The momentum distribution of electrons from semileptonic decays of charm and bottom quarks for midrapidity |y|<0.35 in p+p collisions at square root of s=200 GeV is measured by the PHENIX experiment at the Relativistic Heavy Ion Collider over the transverse momentum range 2<pT<7 GeV/c. The ratio of the yield of electrons from bottom to that from charm is presented. The ratio is determined using partial D/D-->e(+/-)K(-/+)X (K unidentified) reconstruction. It is found that the yield of electrons from bottom becomes significant above 4 GeV/c in pT. A fixed-order-plus-next-to-leading-log perturbative quantum chromodynamics calculation agrees with the data within the theoretical and experimental uncertainties. The extracted total bottom production cross section at this energy is sigma(bb)=3.2(-1.1)(+1.2)(stat)(-1.3)(+1.4)(syst)mub.
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