1776
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Pal R, Yang M, Lin R, Johnson BN, Srivastava N, Razzacki SZ, Chomistek KJ, Heldsinger DC, Haque RM, Ugaz VM, Thwar PK, Chen Z, Alfano K, Yim MB, Krishnan M, Fuller AO, Larson RG, Burke DT, Burns MA. An integrated microfluidic device for influenza and other genetic analyses. LAB ON A CHIP 2005; 5:1024-32. [PMID: 16175256 DOI: 10.1039/b505994a] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
An integrated microfluidic device capable of performing a variety of genetic assays has been developed as a step towards building systems for widespread dissemination. The device integrates fluidic and thermal components such as heaters, temperature sensors, and addressable valves to control two nanoliter reactors in series followed by an electrophoretic separation. This combination of components is suitable for a variety of genetic analyses. As an example, we have successfully identified sequence-specific hemagglutinin A subtype for the A/LA/1/87 strain of influenza virus. The device uses a compact design and mass production technologies, making it an attractive platform for a variety of widely disseminated applications.
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1777
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Chen Z, Li B, Miao M, Yang G, Yin J, Su Q. Simultaneous Determination of Palladium, Platinum and Rhodium by On-Line Column Enrichment and HPLC with 4-Hydroxy-1-Naphthalthiorhodanine as Pre-Column Derivatization Reagents. Mikrochim Acta 2005. [DOI: 10.1007/s00604-005-0385-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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1778
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Li M, Chen Z, Li Y, Ma S, Hu J. Pilot Study To Evaluate the Developmental Potential of Immature Oocytes From Controlled Ovarian Hyperstimulation. Fertil Steril 2005. [DOI: 10.1016/j.fertnstert.2005.07.1100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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1779
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Jiang Y, Xue ZH, Shen WZ, Du KM, Yan H, Yu Y, Peng ZG, Song MG, Tong JH, Chen Z, Huang Y, Lübbert M, Chen GQ. Desferrioxamine induces leukemic cell differentiation potentially by hypoxia-inducible factor-1 alpha that augments transcriptional activity of CCAAT/enhancer-binding protein-alpha. Leukemia 2005; 19:1239-47. [PMID: 15902299 DOI: 10.1038/sj.leu.2403734] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We reported recently that cobalt chloride-simulated hypoxia and mild hypoxia modified the differentiation of human acute myeloid leukemic (AML) cells, probably acting via a hypoxia-inducible factor-1 alpha (HIF-1 alpha)-dependent mechanism. In this study, we investigated the effect of desferrioxamine (DFO), an iron chelator with 'hypoxia-mimetic' activity, on the differentiation of AML cells. The results showed that DFO at nontoxic concentrations induced the differentiation of AML cell lines NB4 and U937, as assessed by morphological criteria and differentiation-associated antigens. DFO-induced differentiation parallel to the rapid accumulation of HIF-1 alpha protein in these two cell lines. Of importance, the transient transfection of HIF-1 alpha cDNA induced U937 cells to develop the differentiation-related alterations such as growth arrest and increased CD11b expression. Furthermore, the inducible expression of chromosome translocation t(8;21)-generated leukemogenic AML1-ETO fusion gene attenuated DFO-induced differentiation of U937 cells with the decrease of CCAAT/enhancer-binding protein alpha (C/EBP alpha), a critical factor for granulocytic differentiation. Using immunoprecipitation and luciferase reporter assay, HIF-1 alpha was also shown to interact physically with and to increase the transcriptional activity of C/EBP alpha. Taken together, these results provided novel evidence for a role of HIF-1 alpha in AML cell differentiation, and suggested that C/EBP alpha might be a downstream effector for HIF-1 alpha-mediated differentiation.
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MESH Headings
- Acute Disease
- CCAAT-Enhancer-Binding Protein-alpha/metabolism
- Cell Differentiation/drug effects
- Cell Line, Tumor
- Core Binding Factor Alpha 2 Subunit
- Deferoxamine/pharmacology
- Gene Expression Regulation, Leukemic
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit
- Leukemia, Myeloid/drug therapy
- Leukemia, Myeloid/metabolism
- Oncogene Proteins, Fusion/biosynthesis
- Oncogene Proteins, Fusion/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RUNX1 Translocation Partner 1 Protein
- Transcription Factors/biosynthesis
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Transcription, Genetic
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1780
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Chen Z, Scott Mathews F, Hassan-Abdulah A, Zhao G, Schuman Jorns M. Structure of heterotetrameric sarcosine oxidase (TSOX) at 1.85 Å resolution. Acta Crystallogr A 2005. [DOI: 10.1107/s010876730508880x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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1781
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Chen Z, Elnashaie S. Autothermal CFB Membrane Reformer for Hydrogen Production from Heptane. Chem Eng Res Des 2005. [DOI: 10.1205/cherd.04322] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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1782
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Zhu B, Chen Z, Duan Y, Zou L, Wu Y. P-234 MIP-3 alpha gene therapy intiated by radiotherapy elicits specific anti-tumor immunity against lung carcinoma. Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)80728-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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1783
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1784
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Chen Z, Aston E, Yu MK. Loss of Zap-70 and low molecular weight phosphotyrosine phosphatase occurs after therapy in a patient with B-chronic lymphocytic leukemia. Leukemia 2005; 19:1503-5. [PMID: 15931269 DOI: 10.1038/sj.leu.2403793] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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1785
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Chen L, Zhu J, Xu X, Wang L, Paskalev K, Chen Z, Movsas B, Ma C. SU-FF-J-39: Image Guided Radiation Therapy: Investigation of Interfraction Setup and External Contour Variation for Prostate IMRT Using CT and MRI. Med Phys 2005. [DOI: 10.1118/1.1997585] [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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1786
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Fan J, Luo W, Li J, Fourkal E, Chen Z, Ma C. TH-C-T-617-03: Implementation of Monte Carlo Dose Verification for Proton Therapy QA. Med Phys 2005. [DOI: 10.1118/1.1998669] [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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1787
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Ahmad M, Chen Z, Song H, Lund M, Deng J, Nath R. SU-FF-T-183: Application of a Gantry-Mounted Diode Array System for QA Dosimetry of High-Energy Photon Beams. Med Phys 2005. [DOI: 10.1118/1.1997864] [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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1788
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Song H, Chen Z, Fan Y, Deng J, Ahmad M, Nath R. SU-FF-T-91: Unusually Large Fluctuation of Monitor Unit (MU) Efficiency in Large-Field IMRT Plans Using Sliding-Window Technique. Med Phys 2005. [DOI: 10.1118/1.1997762] [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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1789
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Zhang X, Choe MS, Lee JE, Muller S, Tighiouart M, Rogatko A, Glisson BS, Chen Z, Khuri FR, Shin DM. GRIM-19 expression and its correlation with clinical outcomes of an induction chemotherapy for patients with locally advanced squamous cell carcinoma of the head and neck (SCCHN). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.5519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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1790
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Yang J, Li J, Chen L, Chen Z, Luo W, Fan J, Stathakis S, Price R, Ma C. TH-C-T-617-10: Monte Carlo Investigation of Heterogeneity Effect for Head and Neck IMRT. Med Phys 2005. [DOI: 10.1118/1.1998676] [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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1791
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Leal A, Ma C, du Plessis F, Lagares JI, Li J, Quin L, Xiong W, Stathakis S, Luo W, Chen Z. MO-E-T-617-01: Energy and Intensity Modulated Electron Radiation Therapy Using a Monte Carlo Optimization Procedure. Med Phys 2005. [DOI: 10.1118/1.1998305] [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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1792
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Chen Z, Deng J, Song H, Fan Y, Ahmad M, Bond J, Chui C, Haffty B, Nath R. SU-FF-T-80: Incorporation of Isodose-Level Control to a Simplified Intensity-Modulated Radiation Therapy (sIMRT) Technique for Whole Breast Radiotherapy. Med Phys 2005. [DOI: 10.1118/1.1997751] [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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1793
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Popat S, Pan H, Shao Y, Zhao D, Chen Z, Houlston RS. A prospective blinded study of microsatellite instability (MSI) as a marker of overall survival (OS) in the adjuvant treatment of colorectal cancer (CRC) patients. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.9544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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1794
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Chen Z, Elnashaie S. Bifurcation Behaviour During the Hydrogen Production in Two Compatible Configurations of a Novel Circulating Fluidized Bed Membrane Reformer. Chem Eng Res Des 2005. [DOI: 10.1205/cherd.04365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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1795
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Chen Y, Zhao Y, Chen Z, Liao M. Phase II clinical trial on docetaxel in the treatment of non-small-cell lung cancer (NSCLC). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.7352] [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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1796
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Deng J, Chen Z, Song H, Nath R. SU-FF-T-267: Correlation of Electron Beam Parameters with Measured Dose Ratios in Clinical Photon Beams. Med Phys 2005. [DOI: 10.1118/1.1997996] [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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1797
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Deng J, Chen Z, Song H, Nath R. SU-FF-T-68: Conformal Target Versus Conformal Avoidance IMRT in Patients with Prostate Cancers. Med Phys 2005. [DOI: 10.1118/1.1997739] [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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1798
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Chen Z, Yang J, Li J, Paskalev K, Ma C, Chen L. WE-E-T-617-05: Monte Carlo Dose Verification for MRI-Based Treatment Planning of Prostate Cancer. Med Phys 2005. [DOI: 10.1118/1.1998606] [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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1799
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Chen Z, Ma C, Yang J, Paskalev K, Li J, Fan J, Richardson T, Palacio L, Chen L. SU-EE-A1-06: Investigation of MR Image Distortion for Radiotherapy Treatment Planning of Prostate Cancer. Med Phys 2005. [DOI: 10.1118/1.1997476] [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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1800
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Chen Z, Bongiorni P, Nath R. TU-D-T-617-04: Dose Rate Constant of the Cesium-131 (model CS-1) Interstitial Brachytherapy Seeds Measured by Thermal-Luminescent Dosimeter (TLD) and by Gamma-Ray Spectroscopy. Med Phys 2005. [DOI: 10.1118/1.1998408] [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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