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Qian X, Gong MJ, Wang CX, Tian M. cDNA-AFLP transcriptional profiling reveals genes expressed during flower development in Oncidium Milliongolds. GENETICS AND MOLECULAR RESEARCH 2014; 13:6303-15. [PMID: 24634291 DOI: 10.4238/2014.february.21.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The flower developmental process, which is crucial to the whole lifecycle of higher plants, is influenced by both environmental and endogenous factors. The genus Oncidium is commercially important for cut flower and houseplant industry and is ideal for flower development studies. Using cDNA-amplified restriction fragment length polymorphism analysis, we profiled transcripts that are differentially expressed during flower development of Oncidium Milliongolds. A total of 15,960 transcript-derived fragments were generated, with 114 primer sets. Of these, 1248 were sequenced, producing 993 readable sequences. BLASTX/N analysis showed that 833 of the 993 transcripts showed homology to genes in the NCBI databases, exhibiting functions involved in various processes, such as signal transduction, energy conversion, metabolism, and gene expression regulation. The full-length mRNAs of SUCROSE SYNTHASE 1 (SUS1) and LEAFY (LFY) were cloned, and their expression patterns were characterized. The results showed that the expression levels of SUS1 and LFY were similar during flower development. To confirm the function of SUS1 in flower buds, carbohydrate content and sucrose synthase activity were determined. The results showed that changes in sucrose content and sucrose synthase activity reflected SUS1 expression levels. Collectively, these results indicate that SUS1 influences flower development by regulating LFY expression levels through changing the sucrose content of flower buds.
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Pan WZ, Shi CX, Tian M, Yu JG. Anti-CD11c antibody, Efalizumab attenuate ventilator-induced lung injury. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2014; 18:2182-2190. [PMID: 25070825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND The pathophysiology of ventilator-induced lung injury (VILI) involves multiple mechanisms including inflammation and inflammatory cells infiltration. The anti-CD11c monoclonal antibody, Efalizumab has been demonstrated to inhibit the T cell activation, migration and adhesion to keratinocytes. MATERIALS AND METHODS In this study, we induced lung injury with mechanical ventilation in male Sprague-Dawley rats, the rats were divided into four groups: lung-protective ventilation (LV), injurious ventilation (HV), HV+human IgG control and HV+ Efalizumab groups. Then we detected the lung tissue wet/dry ratio, and the activity of myeloperoxidase (MPO) was determined. The concentration of protein, TNF-a, IL-6, IL-1b and MIP-2 in the BALF were detected by ELISA. The expression ICAM-1 was measured by Realtime PCR. RESULTS Compared with the human IgG control treated group, the treatment of Efalizumab attenuate the ventilator-induced lung injury, including the wet/dry ratio and the activity of myeloperoxidase (MPO), meanwhile, the level of pro-inflammatory cytokines, such as TNF-a, IL-6, IL-1b and MIP-2 were decreased in the BALF of Efalizumab-treated group rats compared with the human IgG-treated control group. In addition, the histopathological index of ventilator-induced lung injury was improved after efalizumab treatment, that also reduced the recruitment of inflammatory cells into the lung, such as neutrophils. CONCLUSIONS Our data suggested that Efalizumab could protect rat from ventilator-induced lung injury and improve the survival time through the inhibition of intrapulmonary inflammatory response.
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78
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Tian M, Qing C, Niu Y, Dong J, Cao X, Song F, Ji X, Lu S. Effect of aminoguanidine intervention on neutrophils in diabetes inflammatory cells wound healing. Exp Clin Endocrinol Diabetes 2013; 121:635-42. [PMID: 24002897 DOI: 10.1055/s-0033-1351331] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
To explore aminoguanidine (AG) effect on neutrophil functions and associated signal transduction way in diabetic rats wound healing. Sprague-Dawley (SD) rats were divided into 3 groups, Group A (control+burns), Group B (diabetes+burns), Group C (diabetes+burns+AG). Wound skin tissue was harvested at 6h, 24h and 36h after trauma, and then immunohistochemistry was used to detect AGE (advanced glycation end products) contents and RAGE (receptor of AGE) expression. Western blotting was applied to detect RAGE and NF-κB. Oxidative stress changes were detected by colorimetry. Inflammatory cytokines were determined by ELIASA and cell apoptosis by TUNEL. Pathological changes were analyzed by hematoxylin-eosin (HE) staining. In the wound tissue of Group C, compared to that in Group B, AGE content, RAGE expression level, NF-κB level declined, and MPO (myeloperoxidase) decreased at 36h; TNFα, IL-8, H2O2, GSH-Px (Glutathione peroxidse), and MDA (malondialdehyde) levels increased; dense post-traumatic inflammation belt formed obviously. AG for prophylactic use can promote the migration and respiratory burst of neutrophils markedly, and help to restore the functions of neutrophil; and the abnormal secretion of inflammation cytokines can be corrected partly. Blocking AGE deposition and promoting microenvironment were effective ways for diabetic wound healing.
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79
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Tian M, Grill-Spector K. Spatio-temporal information is not necessary for generating view-point invariant object recognition during unsupervised learning. J Vis 2013. [DOI: 10.1167/13.9.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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80
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Tian M, Liu BS, Hammonds M, Wang N, Sarre PJ, Cheung ASC. Catalytic conversion of acetylene to polycyclic aromatic hydrocarbons over particles of pyroxene and alumina. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2013; 371:20110590. [PMID: 23734053 DOI: 10.1098/rsta.2011.0590] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are known to be present in many astrophysical objects and environments, but our understanding of their formation mechanism(s) is far from satisfactory. In this paper, we describe an investigation of the catalytic conversion reaction of acetylene gas to PAHs over pyroxene and alumina. Crystalline silicates such as pyroxenes (with general formula [Mg, Fe]SiO₃) and alumina (Al₂O₃) are observed astrophysically through their infrared spectra and are likely to promote grain surface chemical reactions. In the experiments reported here, gas-phase PAHs were produced by the catalytic reaction of acetylene over crystalline silicates and alumina using a pulsed jet expansion technique and the gaseous products detected using time-of-flight mass spectrometry. In a separate experiment, the catalytic formation of PAHs from acetylene was further confirmed with acetylene gas at atmospheric pressure flowing continuously through a fixed-bed reactor. The gas effluent and carbonaceous compounds deposited on the catalysts were dissolved separately in dichloromethane and analysed using gas chromatography-mass spectrometry. Among the samples studied, alumina showed higher activity than the pyroxene-type grains for the acetylene reaction. It is proposed that formation of the PAHs relies on the Mg²⁺ ions in the pyroxenes and Al³⁺ ions in alumina, where these ions act as Lewis acid sites. X-ray diffraction, Fourier transform infrared and high-resolution transmission electron microscopy techniques were used to characterize the structure and physical properties of the pyroxene and alumina samples.
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81
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Chang HL, Qu K, Liu C, Lv Y, Yu L, Liu XM, Wang B, Wang Z, Tian M, Wang L. Liver transplantation using DCD donors: the current strategy to expand the organ donor pool in China. Am J Transplant 2013; 13:1939-40. [PMID: 23731262 DOI: 10.1111/ajt.12295] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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82
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Tian M, Row KH. Separation of Glucose and Bioethanol in Biomass with Current Methods and Sorbents. J Chromatogr Sci 2013; 51:819-24. [DOI: 10.1093/chromsci/bmt044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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83
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Lee Y, Tian M, Row K. Determination of Benzimidazoles Pesticides in Environmental Water Using Hollow Fiber Microextraction. ACTA ACUST UNITED AC 2013. [DOI: 10.14233/ajchem.2013.13343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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84
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Che J, Tian M, Ding G, Huai Q, Dong P, Li Y, Li S. Effects of cell salvage on erythrocyte 2,3-disphosphoglycerate and G-6-PD levels and phosphatidylserine expression. Int J Lab Hematol 2012; 35:385-92. [PMID: 23176294 DOI: 10.1111/ijlh.12028] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Accepted: 10/16/2012] [Indexed: 11/29/2022]
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85
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He JC, Feng EF, Liu M, Li HL, Tian M, Zhang Q, Dong LC, Xu GL. Development and Validation of a Liquid Chromatography-tandem Mass Spectrometry Method for the Simultaneous Determination of Acrivastine and Pseudoephedrine in Human Plasma and its Application in Pharmacokinetics. ARZNEIMITTEL-FORSCHUNG 2012; 62:e3. [PMID: 23047471 DOI: 10.1055/s-0032-1329594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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86
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He JC, Feng EF, Liu M, Li HL, Tian M, Zhang Q, Dong LC, Xu GL. Development and validation of a liquid chromatography-tandem mass spectrometry method for the simultaneous determination of acrivastine and pseudoephedrine in human plasma and its application in pharmacokinetics. ARZNEIMITTEL-FORSCHUNG 2012; 62:449-56. [PMID: 22936420 DOI: 10.1055/s-0032-1314877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A specific, sensitive and accurate liquid chromatography-tandem mass spectrometry (LC-MS/MS) method has been developed for the simultaneous determination of acrivastine and pseudoephedrine in human plasma samples. Plasma samples were processed and analyzed on a Phenomenex Luna 3 μ CN 100A column (150 mm×2.0 mm) eluted with the mobile phase consisting of methanol and 0.01 mol/L ammonium acetate water solution containing 0.1% formic acid (45:55, v/v) at a flow rate of 0.2 mL/min. The analytes were detected by positive ion electrospray ionization in multiple reaction monitoring mode. The transitions of m/z 349→278, m/z 166→148 and m/z 256→167 were monitored for acrivastine, pseudoephedrine and diphenhydramine (IS), respectively. The method was specific and sensitive with a lower limit of quantitation (LLOQ) of 1.52 ng/mL for acrivastine and 8.13 ng/mL for pseudoephedrine. The method showed good linearity in the range of 1.52~606.0 0 ng/mL for acrivastine and 8.13~813.12 ng/mL for pseudoephedrine (r≥0.996). The mean recovery were ranged 91.82% ~ 98.46% for acrivastine and 90.77% ~ 92.05% for pseudoephedrine. Validation results, such as accuracy, precision and repeatability were within the required limits. The method was successfully applied in a pharmacokinetic study of the acrivastine and pseudoephedrine hydrochloride compound capsule in humans.
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87
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Tang B, Tian M, Lee YR, Row KH. Optimized Analytical Conditions for Eicosapentaenoic and Docosahexaenoic Acids inAntarctic krillUsing Gas Chromatography. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.677978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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88
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Hefzy H, Tian M, Wright D, Tayal A. Early Endovascular Therapy for Acute Ischemic Stroke in Patients Ineligible To Receive Intravenous Thrombolysis Is Associated with Poor Outcomes (P06.221). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p06.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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89
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Tian M, Li S, Row KH. Optimum separation condition of five bioactive compounds by HCI program in HPLC. ACTA CHROMATOGR 2012. [DOI: 10.1556/achrom.24.2012.1.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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90
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Hu Q, Wu H, Zhang L, Fong H, Tian M. Rubber composite fibers containing silver nanoparticles prepared by electrospinning and in-situ chemical crosslinking. EXPRESS POLYM LETT 2012. [DOI: 10.3144/expresspolymlett.2012.29] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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91
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Tian M, Liu BS, Hammonds M, Wang N, Sarre PJ, Cheung ASC. Formation of polycyclic aromatic hydrocarbons from acetylene over nanosized olivine-type silicates. Phys Chem Chem Phys 2012; 14:6603-10. [DOI: 10.1039/c2cp23309f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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92
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Tian M, Row KH. Separation of four bioactive compounds from Herba artemisiae scopariae by HPLC with ionic liquid-based silica column. JOURNAL OF ANALYTICAL CHEMISTRY 2011. [DOI: 10.1134/s1061934811060207] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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93
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Munk P, Ramireddy C, Tian M, Webber SE, Procházka K, Tuzar Z. Block copolymer micelles in aqueous media. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.19920580115] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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94
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Tatsuura S, Furuki M, Tian M, Sato Y, Pu L. Ultrafast Optical Responses of the Squarylium Dye J-Aggregates Films. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-561-105] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTUltrafast optical responses of the organic films containing squaryliurn dye J-aggregates prepared by simple spincoating method were investigated. Some SQ films exhibited a sharp absorption peak originated from J-aggregates and especially the SQ derivative which has dibutylamino bases at the end of benzene rings forms good J-aggregates in the films without any extra treatment. Time-resolved difference absorption spectra were measured about the SQ44 film. Clear bleached absorption peak and its fast recovery were observed. The decay time was determined to be about 220 fs at 50 MW/cm2 excitation intensity. Sample preparations and all the measurements were performed in air at room temperature.
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Baran RW, Dietz B, Fredrick LM, Tian M, Podsadecki T. HRQoL improves in treatment-naïve HIV-1 subjects initiated on lopinavir/ritonavir (LPV/r) with raltegravir (RAL) or tenofovir/emtricitabine (TDF/FTC). J Int AIDS Soc 2010. [PMCID: PMC3113086 DOI: 10.1186/1758-2652-13-s4-p8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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96
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Sun Z, Zhang J, Song H, Zhang X, Li Y, Tian M, Liu Y, Zhao Y, Li C. Concomitant increases in spectrum and level of drug resistance in Mycobacterium tuberculosis isolates. Int J Tuberc Lung Dis 2010; 14:1436-i. [PMID: 20937184] [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] Open
Abstract
OBJECTIVE To determine the drug resistance spectrum and resistance levels of extensively drug-resistant (XDR-) and multidrug-resistant tuberculosis (MDR-TB) and TB resistant to either rifampicin (RMP, R) or isoniazid (INH, H; R/H-DR). DESIGN Of 142 drug-resistant clinical isolates examined, 13 were XDR-TB, 66 were MDR-TB and 63 were R/H-DR. The drug resistance spectrum was tested by the absolute two-concentration method. Minimum inhibitory concentrations (MICs) were determined for the strains by agar dilution method on Löwenstein-Jensen slants. RESULTS The drug resistance spectrum of XDR-TB, MDR-TB and R/H-DR TB isolates ranged from 4 to 9, 2 to 6 and 1 to 5 drugs, respectively. Over half of all XDR-TB (53.8%), MDR-TB (66.7%) and R/H-DR (54.0%) isolates were resistant to two other anti-tuberculosis drugs; 38.5% of XDR-TB, 24.2% of MDR-TB and 28.6% of R/H-DR TB isolates were resistant to ≥ 3 additional anti-tuberculosis drugs in addition to those originally defined, demonstrating that the MIC values and the proportions of strains with higher MICs followed a trend of XDR-TB > MDR-TB > R/H-DR for INH, RMP, ofloxacin and ethambutol. CONCLUSION XDR-TB, MDR-TB and R/H-DR TB isolates exhibited both increasingly broader resistance spectra and a higher percentage of strains with high MICs to more frequently resistant drugs, which might be related to patterns of TB chemotherapy.
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Wan X, Tian M, Row KH. Ionic liquid-modified silica as a new stationary phase for chromatographic separation. JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.1134/s1061934810080058] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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98
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Song Y, Tian M, Bu Y, Liu J. Functional connectivity among cortical regions is shaped by associative experiences. J Vis 2010. [DOI: 10.1167/9.8.730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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99
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Tian M, Lv Y, Li J. Education and imaging. Hepatobiliary and pancreatic: sclerosing cholangitis associated with critical illness. J Gastroenterol Hepatol 2010; 25:842. [PMID: 20492345 DOI: 10.1111/j.1440-1746.2010.06316.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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100
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Tian M, Xiaoyi W, Xiaotao L, Guosheng R. Proteasomes reactivator REG gamma enchances oncogenicity of MDA-MB-231 cell line via promoting cell proliferation and inhibiting apoptosis. Cell Mol Biol (Noisy-le-grand) 2009; 55 Suppl:OL1121-OL1131. [PMID: 19656465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Accepted: 03/04/2009] [Indexed: 05/28/2023]
Abstract
To investigate the effect of proteasomes reactivator REG gamma on cell cycle and apoptosis in vitro and in vivo. In vitro, we first constructed recombinant plasmid of PcDNA3.1-REGgamma and then transfected REGgamma into MDA-MB-231 cell line. We confirmed the transfection efficiency by Western blot. Subsequently, we observed cell growth, cycle and colony formation. Specific proliferative molecule proliferating cell nuclear antigen (PCNA) and apoptosis related signal molecule Caspase-3 was assayed by immmunohistochemistry and absorption spectrometry, respectively. In vivo, we successfully established transplantation tumor nude mice model. We determined REGgamma mRNA level in the transplantation tumor tissue. Then, FCM was used to determine cell cycle, apoptosis and CD16. Finally, we employed immunohistochemistry to determine P21 positive expression. However, the cells transfected with REGgamma grew more rapidly compared with non-transfected ones. Increased cells were observed in S+G2+M phase and S phase in the REGgamma transfected group. PCNA expression level in the transfected cells was higher than that in non-transfected ones. In vivo, we observed the similar phenomenon including more rapid tumor growth, higher REGgamma mRNA expression, decreased cells number in G0/G1 phase and G2/M phase, increased cells in S phase and decreased apoptosis in the transfected group. In the study of related molecules, we also found related molecules P21 and CD16 positive expression rate were obviously lower than non-infected ones. In present study, we found oncogenicity of MDA-MB-231 cell transfected with REGgamma was enhanced, which might be realized via REGgamma promoting cell growth, inhibiting cell apoptosis, degrading P21 and suppressing activation of NK, suggesting REGgamma promoting tumor growth is a process involving multiple factor mechanisms.
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MESH Headings
- Animals
- Apoptosis/physiology
- Autoantigens/genetics
- Autoantigens/metabolism
- Autoantigens/physiology
- Blotting, Western
- Breast Neoplasms/genetics
- Breast Neoplasms/pathology
- Breast Neoplasms/ultrastructure
- Caspase 3/metabolism
- Cell Cycle/physiology
- Cell Line, Tumor
- Cell Proliferation
- Cyclin-Dependent Kinase Inhibitor p21/metabolism
- Female
- Flow Cytometry
- Gene Expression Regulation, Neoplastic
- Humans
- Immunohistochemistry
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Microscopy, Electron, Transmission
- Proteasome Endopeptidase Complex/genetics
- Proteasome Endopeptidase Complex/metabolism
- Proteasome Endopeptidase Complex/physiology
- Receptors, IgG/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Transfection
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