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Li G, Zhao F, Cui Y. Proteomics Using Mammospheres as a Model System to Identify Proteins Deregulated in Breast Cancer Stem Cells. Curr Mol Med 2013. [DOI: 10.2174/156652413805076759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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302
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Zhu J, Van de Ven W, Verbiest T, Koeckelberghs G, Chen C, Cui Y, Vermorken A. Polyphenols Can Inhibit Furin In Vitro As A Result of the Reactivity of their Auto-oxidation Products to Proteins. Curr Med Chem 2013. [DOI: 10.2174/092986713805076702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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303
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Zhu J, Van de Ven W, Verbiest T, Koeckelberghs G, Chen C, Cui Y, Vermorken A. Polyphenols Can Inhibit Furin In Vitro As A Result of the Reactivity of their Auto-oxidation Products to Proteins. Curr Med Chem 2013. [DOI: 10.2174/0929867311320060009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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304
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Zhu J, Van de Ven WJM, Verbiest T, Koeckelberghs G, Chen C, Cui Y, Vermorken AJM. Polyphenols can inhibit furin in vitro as a result of the reactivity of their auto-oxidation products to proteins. Curr Med Chem 2013; 20:840-850. [PMID: 23231348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 11/29/2012] [Accepted: 12/06/2012] [Indexed: 06/01/2023]
Abstract
UNLABELLED Methods using fluorogenic peptide substrates have been proposed for screening of proprotein convertase (PC) inhibitors and they are attractive since they offer the advantage of being sensitive, cost-effective and susceptible to miniaturization. Several polyphenols, including epigallocatechin gallate ((-)EGCG), the main component of green tea, and quercetin, widely distributed in fruit and vegetables, however, led to false positive results when fluorogenic peptide substrates were used. Processing of genuine furin substrates was not inhibited by these polyphenols. In the present study, these discordant effects of (-)EGCG on the PC furin were studied. While quercetin can form aggregates in solution, aggregate-based promiscuous inhibition could be ruled out as underlying mechanism for (-)EGCG. Hydrogen peroxide production, from auto-oxidation, was too low to be a major factor but appeared associated to furin inhibition, suggesting a role for other auto-oxidation products. Since the instability of catechins is related to their electrophilic character, we tested the nucleophilic substance glutathione for stabilization. Indeed glutathione reduced furin inhibition and (-)EGCG binding to furin and serum albumin as shown by redox-cycling staining. Catechins, therefore, seem to form reactive compounds and this should be taken into account in screening assays. Adding glutathione to the detergent-based assay, as used in these studies to measure furin processing activity, strongly reduced inhibition by a number of polyphenols (catechins, gallic acid and quercetin), while the effect on the genuine inhibitor nona-D-arginine remained unchanged. IN CONCLUSION the combined use of detergent and glutathione in the screening assay for furin inhibitors improves the predictive value.
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Li G, Zhao F, Cui Y. Proteomics Using Mammospheres as a Model System to Identify Proteins Deregulated in Breast Cancer Stem Cells. Curr Mol Med 2013. [DOI: 10.2174/1566524011313030015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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306
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Shen Y, Cui Y, Yuan W. Flocculation Optimization of Microalga Nannochloropsis oculata. Appl Biochem Biotechnol 2013; 169:2049-63. [DOI: 10.1007/s12010-013-0123-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 01/21/2013] [Indexed: 11/28/2022]
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307
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Zhang L, Chen J, Lv J, Wang S, Cui Y. Progress and Development of Capture for CO2 by Ionic Liquids. ACTA ACUST UNITED AC 2013. [DOI: 10.14233/ajchem.2013.13552] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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308
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Bamiduro O, Chennamadhava G, Bowie C, Robinson B, Dondapati H, Konda RB, Robertson B, Bahoura M, Pradhan AK, Cui Y, Bhattacharya P, Burger A. Self-assembled hierarchical nanostructures composed of novel chalcopyrite nanosheets for photovoltaic properties. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2013; 13:467-476. [PMID: 23646756 DOI: 10.1166/jnn.2013.6724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Self-assembled nanostructures of CulnGaSe2 (CIGS) comprising of nanosheets with sheet thickness of 20 nm have been developed via one-step electrochemically alloying technique. These self-assembled nanoplates exhibit highly intersecting behavior and transform from CuSe to CIGS as the reduction potential was varied. The morphological analysis indicated that the process resulted in a progression of crystallites to a series of heavy dense intersecting nanoplates. Further analyses revealed that the nanostructures keep their integrity on heat treatment. The structure confirms the inclusion of Indium and Gallium at higher reduction potentials and its transition from pseudoamorphous to polycrystalline structure. A strong correlation between reduction potential, and the composition was established. The spectroscopic and optical spectra clearly prove that the direct band gap for the as-grown and annealed thin films, and appropriate for solar cell applications. These self-assembled dense interweaved nanoplates structure have not been observed previously in CIGS semiconductor system and have potential implications forenergy applications.
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Zeng H, Tao Y, Chen X, Zeng P, Wang B, Wei R, Yao C, Xie Y, Li F, Tang Y, Cui Y, Sun G. Primary immunodeficiency in south China: clinical features and a genetic subanalysis of 138 children. J Investig Allergol Clin Immunol 2013; 23:302-308. [PMID: 24260974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
OBJECTIVES We analyzed the clinical features of 138 patients with primary immunodeficiency (PID) and performed genetic testing on a subset of patients in order to complete gaps in research on PID in South China and thus improve pediatricians' ability to recognize and diagnose PID. METHODS We performed a retrospective analysis based on the medical records of PID patients hospitalized in our institution between May 1999 and June 2012. Gene sequencing was performed in 59 cases. RESULTS Children with PID usually present with fever and repeated infections that generally affect the respiratory and digestive tracts. Growth retardation is observed in some cases. Of the 138 patients, 113 were boys, median age at onset was 5 months (range, 0-119 months), and age at diagnosis was 10 months (2-159 months). A family history of repeated infection or death of family members in infancy because of recurrent infections was recorded in 20 cases (14.49%). Antibody defects were detected in 48 cases (34.78%), combined immunodeficiency disease in 45 cases (32.61%), and other well-defined immunodeficiency syndromes in 45 cases (32.61%). Of the 59 patients from the genetic subanalysis, 24 (15.94%) had a genetic mutation (x-linked agammaglobulinemia, 8 cases; severe combined immunodeficiency, 8 cases; hyperimmunoglobulin M syndrome, 3 cases; hyperimmunoglobulin E syndrome, 3 cases; chronic granulomatous disease, 2 cases). We detected 4 novel mutations. No relevant mutations were found in the remaining 35 cases.After treatment with intravenous immunoglobulin and anti-infectious agents, 16 patients died in hospital, and 5 cases died after discontinuing treatment (mortality, 15.22%). CONCLUSIONS In recent years, the number of patients with PID has risen gradually in South China. Genetic testing can confirm diagnosis. Since PID seriously affects children's quality of life, it is important to diagnose, treat, and intervene early.We hope our clinical and genetic analyses of children with PID can provide diagnostic guidance for clinicians.
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Siglin J, Champ C, Peng C, Cui Y, Dicker A, Werner-Wasik M, Xaio Y, Den R. Assessing Normal Tissue Motion on 4-dimensional Computed Tomography Scan: Modeling the Internal Risk Volume of the Esophagus. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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312
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Xie J, Cao J, Chen W, Cui Y, Galvin J, Yu Y, Xiao Y. Breast Tangential Treatment Plan Using Flattening Filter-free Beams: A Planning Study. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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313
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Chen W, Cui Y, Kong F, Machtay M, Videtic G, Loo B, Gore E, Galvin J, Yu Y, Xiao Y. Is Recontouring Organs-at-Risk (OAR) for Adaptive Radiation Therapy Plans for Locally Advanced Lung Cancer Necessary? A Preactivation Analysis From Radiation Therapy Oncology Group (RTOG) 1106. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1605] [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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314
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Bar Ad V, Witek M, Leiby B, Xiao Y, Cui Y, Dai Y, Cao J, Axelrod R, Campling B, Werner-Wasik M. Treatment-related Esophagitis for Patients With Locoregionally Advanced Non-small Cell Lung Cancer Treated With Involved-Field Radiation Therapy and Concurrent Chemotherapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1470] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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315
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Chen W, Cui Y, Kong F, Machtay M, Videtic G, Loo B, Gore E, Galvin J, Yan Y, Xiao Y. Quantitative Evaluation of Impact Upon Tumor Control Probability (TCP) From Quality Assurance Criteria for Non-small Cell Lung Cancer From RTOG 1106 Study. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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316
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Liu L, Tan R, Liu J, Cui Y, Liu J, Wu J. Mutational analysis of theFSTgene in Chinese women with idiopathic premature ovarian failure. Climacteric 2012; 16:469-72. [DOI: 10.3109/13697137.2012.733982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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317
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Sheng YJ, Gao JP, Tang HY, Tang XF, Sun LD, Yin XY, Yang S, Zuo XB, Cui Y, Zhang XJ. A single-nucleotide polymorphism rs4639966 in 11q23.3 is associated with clinical features of systemic lupus erythematosus in the Chinese population. Lupus 2012; 21:1538-42. [PMID: 23002088 DOI: 10.1177/0961203312460900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In our previous genome-wide association study (GWAS), we identified an association signal of the single-nucleotide polymorphism (SNP) rs4639966 (p = 1.25 × 10(-16), odds ratio [OR] = 1.29) within 11q23.3. The aim of this study was to investigate its relationship with disease subphenotypes, including renal nephritis, photosensitivity, antinuclear antibody (ANA), age at diagnosis, malar rash, discoid rash, immunological disorder, oral ulcer, hematological disorder, neurological disorder, serositis, arthritis and vasculitis. In this study, we used 4199 cases and 8255 controls from our previous GWAS to explore the association between 11q23.3 with subphenotypes of systemic lupus erythematosus (SLE). Data were analyzed with PLINK 1.07 software. Significant associations were found for the SNP rs4639966 of 11q23.3 with SLE of age at diagnosis <20 years (OR = 1.18, p = 0.0049), malar rash (OR = 1.13, p = 0.01) and vasculitis (OR = 1.17, p = 0.02). The study suggested that 11q23.3 might not only play important roles in the development of SLE, but also contribute to the complex phenotypes of SLE.
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318
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Yang R, Wang X, Cui Y. Bayesian inference for genomic imprinting underlying developmental characteristics. Brief Bioinform 2012; 13:555-68. [DOI: 10.1093/bib/bbr079] [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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319
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Williams JR, Bestwick AJ, Gallagher P, Hong SS, Cui Y, Bleich AS, Analytis JG, Fisher IR, Goldhaber-Gordon D. Unconventional Josephson effect in hybrid superconductor-topological insulator devices. PHYSICAL REVIEW LETTERS 2012; 109:056803. [PMID: 23006196 DOI: 10.1103/physrevlett.109.056803] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Indexed: 06/01/2023]
Abstract
We report on transport properties of Josephson junctions in hybrid superconducting-topological insulator devices, which show two striking departures from the common Josephson junction behavior: a characteristic energy that scales inversely with the width of the junction, and a low characteristic magnetic field for suppressing supercurrent. To explain these effects, we propose a phenomenological model which expands on the existing theory for topological insulator Josephson junctions.
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Ren X, Lu F, Cui Y, Wang X, Bai C, Chen J, Huang C, Yang D. Protective effects of genistein and estradiol on PAHs-induced developmental toxicity in zebrafish embryos. Hum Exp Toxicol 2012; 31:1161-9. [PMID: 22736253 DOI: 10.1177/0960327112450900] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The toxicity of exposure to polycyclic aromatic hydrocarbons (PAHs) or phytoestrogen is relatively well characterized. However, the toxicity of combined exposure to PAHs and phytoestrogen is not well investigated. In the present study, benzo(a)pyrene (B(a)P) and benzo(k)fluorathene (B(k)F), genistein, along with 17β-estradiol (E2), were investigated for their single and combined developmental toxicity using zebrafish embryos as model system. We demonstrated that two representative PAHs, both B(a)P (≥1 μM) and B(k)F (≥10 μM), can cause significant malformation and mortality in developing zebrafish embryos. The toxicity effect of B(a)P was in general higher than that of B(k)F. Developmental exposure to high level of genistein (>20 μM) or E2 (>10 μM), also caused significant malformation and mortality in zebrafish larvae at 120 hours post fertilization (hpf). However, different toxic effects were observed for the combined exposure to PAHs and phytoestrogen in zebrafish. Lower doses of genistein (1 and 10 μM) and E2 (0.1 and 1 μM), when used in combination with high concentration of B(a)P (1 μM) or B(k)F (20 μM), can significantly suppress the toxicity effect of B(a)P and B(k)F in developing zebrafish embryos. The beneficial effect of genistein may be due to the inhibition of cytochrome P450 enzymes via directly interacting with aryl-hydrocarbon receptor (AhR) pathway, or disturbing the AhR pathway through interacting with estrogen receptor pathway.
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Cui Y, Gao SY, Wang ZL, Li XT, Sun YS, Tang L, Zhang XP. Which should be the routine cross-sectional reconstruction mode in spectral CT imaging: monochromatic or polychromatic? Br J Radiol 2012; 85:e887-90. [PMID: 22723512 DOI: 10.1259/bjr/27844842] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To provide evidence for the selection of an optimal cross-sectional reconstruction mode in spectral CT imaging of the abdomen, we compared the monochromatic images with polychromatic images. METHODS Three phase-enhanced CT scans of the abdomen were recorded using the spectral imaging technique on 100 patients. Images were reconstructed using two modes: polychromatic and 70 keV monochromatic. The following variables were then compared: contrast-to-noise ratio (CNR) of the liver, spleen, gallbladder, kidney and pancreas, and the noise. Paired t-tests were used to compare differences between the two sets of images. Three experienced doctors graded the quality of the images with a five-point scale. The image quality scores were compared with a non-parametric rank sum test. RESULTS Compared with polychromatic images, the 70 keV monochromatic mode images yielded significantly greater tissue-to-fat CNR and lower noise (p<0.001 for all comparisons). The image quality of the 70 keV monochromatic mode showed significantly better results than the polychromatic mode (p<0.001). CONCLUSIONS In abdominal spectral CT imaging, 70 keV monochromatic mode reconstruction images were better than those reconstructed using the polychromatic mode. The monochromatic mode may become the routine reconstruction mode for cross-sectional images.
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Giaddui T, Cui Y, Yegingil Z, Xie J, Chen W, Galvin J, Yu Y, Xiao Y. SU-E-I-08: KV XVI Cone Beam-CT Dose Measurement Using Gafchromic XRQA2 Film. Med Phys 2012; 39:3626. [PMID: 28519527 DOI: 10.1118/1.4734722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE To study the effect of different filters on the dose response curves of the Gafchromic XRQA2 film. To measure the kV XVI cone-beam CT (CBCT) surface dose received during 3D and 4D imaging protocols in three body regions (head and neck, chest and pelvis). METHODS GafChromic XR- QA2 film (International Specialty Products, Wayne, NJ) dose response curves were generated for three irradiation settings: 100 kVp S20/F0; 120 kVp S20/F0 and 120 kVp S20/F1(F1 is a Bowtie filter). Film pieces were irradiated in air by the X-ray Volume Imager (XVI) mounted on the Elekta Synergy linear accelerator (Elekta, Crawley, UK) and their responses were correlated to air kerma measurements. To measure the CBCT surface dose, film pieces were taped on the surface of a male Alderson Rando Phantom (Alderson Research Laboratories, Inc., Long Island City, New York) at four different places (Anterior, Posterior, Right Lateral, Left Lateral). RESULTS The dose response curves of XRQA2 film generated with F1 and F0 filters were found to differ by 5 to 7% when the air kerma changed between 2 and 5 cGy. This was less than the observed difference (more than 15%, especially at low air kerma) in the dose response curves when different energies (100 and 120 kVp) and same filter were used. Surface dose ranged between 0.02 cGy and 4.99 cGy. The lowest average surface dose (0.05 cGy) was observed when the fast head and neck protocol was used, whilst the highest average surface dose (3.06 cGy) was noticed when the chest m2 0 protocol was used. CONCLUSIONS Filters seem to have less effect on the dose response of the film compared with energy. Gafchromic XRQA2 film was used successfully to measure the XVI CBCT surface dose. The dose was found to vary from one imaging protocol to another, with 4D protocols not necessarily delivering more doses.
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Cui Y, Chen W, Kong F, Appenzoller L, Beatty R, Maxim P, Ritter T, Sohn J, Higgins J, Yu Y, Galvin J, Xiao Y. TH-A-BRA-01: Contouring Variations and Their Impact on Dose-Volume Histograms in Non-Small-Cell Lung Cancer Radiotherapy: Analysis of a Multi- Institutional Pre-Clinical Trial Planning Study. Med Phys 2012. [DOI: 10.1118/1.4736250] [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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324
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Yegingil Z, Cui Y, Giaddui T, Chen W, Xie J, Xiao Y, Yu Y. SU-E-J-50: Measurement of the HVL Value for the 120keV Photon Beam of the X-Ray Volume Imager (XVI) Using Ionization Chamber, Gafchromic Film XRQA2 and Diode. Med Phys 2012; 39:3663. [DOI: 10.1118/1.4734885] [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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325
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Zhu J, Declercq J, W.M. Creemers J, Chen C, Cui Y, J.M. Van de Ven W, J.M. Vermorken A. Limitations of Inhibitory Activities of Polyphenols on Furin-Mediated Substrate Processing. Curr Med Chem 2012; 19:3641-50. [DOI: 10.2174/092986712801323162] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 04/22/2012] [Accepted: 04/22/2012] [Indexed: 11/22/2022]
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