151
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Meng Q, Yuan B, Jia L, Wang J, Yu B, Gao J, Garner P. Expanding health insurance coverage in vulnerable groups: a systematic review of options. Health Policy Plan 2010; 26:93-104. [DOI: 10.1093/heapol/czq038] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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152
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Liu K, Wang W, Liu Q, Wang C, Meng Q, Zhang J, Guo X, Kaku T. OL-008 The effects of JBP485 on expression and function of Pept1 in indomethacin-induced acute intestine injury in rats and damaged Caco-2 cells. Int J Infect Dis 2010. [DOI: 10.1016/s1201-9712(10)60012-4] [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] Open
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153
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Li Q, Gao KQ, Vinther J, Shawkey MD, Clarke JA, D'Alba L, Meng Q, Briggs DEG, Prum RO. Plumage Color Patterns of an Extinct Dinosaur. Science 2010; 327:1369-72. [DOI: 10.1126/science.1186290] [Citation(s) in RCA: 190] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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154
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Marcoux J, Sohn N, McNair E, Rosin M, Smith G, Lim H, Mycyk T, Meng Q. Outcomes comparison of 5 coated cardiopulmonary bypass circuits versus an uncoated control group of patients undergoing cardiac surgery. Perfusion 2009; 24:307-15. [DOI: 10.1177/0267659109352114] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Attenuated inflammatory response and decreased platelet activation have been claimed repeatedly when biocompatible circuits are used for cardiopulmonary bypass. We evaluated five Health Canada approved biocompatible circuit coatings (BCC) against an un-coated control group to determine their effectiveness in improving post-operative outcomes. Patients were assigned to the Control group or one of the 5 coated circuit groups: 40 Control; 33 Trillium; 32 Phisio; 34 Bioline; 33 X; and 11 GBS. Measured outcomes included: ventilator time; ICU time; post-operative chest tube drainage and transfusion volume; high sensitivity C-reactive protein (hsCRP); tau protein; and pre- and 72-hour post-operative anti-saccadic eye movement test comparisons. Results: 183 patients were enlisted into the study. One arm of the study (GBS) was abandoned after 11 patients on account of inconsistent pressure excursions within the oxygenator and the excessive consumption of platelets necessitating transfusion. Patients in the X-coated group had significantly longer ventilator and intensive care unit (ICU) time compared to the three remaining coated circuit study groups. Though not significant, patients in the X group also demonstrated the highest post-operative chest tube losses, the most platelet transfusions, the highest tau protein levels and the lowest post-operative anti-saccadic eye movement test (ASEMT) results compared to the three remaining coated groups. The patients in the Trillium, Bioline and Phisio groups showed an improvement in ventilator and ICU time relative to the Control group. The diabetic patients in the Trillium, Bioline and Phisio groups showed an improvement in bleeding relative to the diabetic patients in the Control group. Conclusion: We compared all 5 coated circuits approved for clinical use in Canada against an uncoated control circuit. Three of the 5 coated circuits (Trillium, Phisio and Bioline BCC) were found to improve ventilator and ICU time compared to Control. Further studies are indicated to validate these results and their impact upon approval criteria, purchasing choices and safe clinical practice, especially as applied to higher risk diabetic patients.
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155
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Chen X, Zhao J, Meng Q, Li S, Wang Y. Simultaneous determination of five flavonoids in licorice using pressurized liquid extraction and capillary electrochromatography coupled with peak suppression diode array detection. J Chromatogr A 2009; 1216:7329-35. [DOI: 10.1016/j.chroma.2009.08.034] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Revised: 08/10/2009] [Accepted: 08/12/2009] [Indexed: 11/29/2022]
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156
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Zhang W, Zhang F, Li Z, Miao X, Meng Q, Zhang X. Investigation of bacteria with polyketide synthase genes and antimicrobial activity isolated from South China Sea sponges. J Appl Microbiol 2009; 107:567-75. [DOI: 10.1111/j.1365-2672.2009.04241.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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157
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Corrigan CJ, Jayaratnam A, Wang Y, Liu Y, de Waal Malefyt R, Meng Q, Kay AB, Phipps S, Lee TH, Ying S. Early production of thymic stromal lymphopoietin precedes infiltration of dendritic cells expressing its receptor in allergen-induced late phase cutaneous responses in atopic subjects. Allergy 2009; 64:1014-22. [PMID: 19187393 DOI: 10.1111/j.1398-9995.2009.01947.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Thymic stromal lymphopoietin (TSLP) is an interleukin (IL)-7-like cytokine that triggers dendritic cell-mediated T helper (Th)2 inflammatory responses through a receptor consisting of a heterodimer of the IL-7 receptor alpha (IL-7Ralpha) chain and the TSLP receptor (TSLPR), which resembles the cytokine receptor common gamma chain. Dendritic cells activated by TSLP prime development of CD4(+) T cells into Th2 cells contributing to the pathogenesis of allergic inflammation. We hypothesized that allergen exposure induces expression of TSLP and results in recruitment of TSLPR bearing cells in the cutaneous allergen-induced late-phase reaction (LPR) in atopic subjects. METHODS Skin biopsies were obtained from atopic subjects (n = 9) at various times after cutaneous allergen challenge. In situ hybridization and immunohistochemistry were used to determine TSLP mRNA expression and to measure infiltration of TSLPR(+) DC in skin LPR. RT-PCR and flow cytometry were employed to analyse TSLPR expression on isolated blood DC. RESULTS Allergen-induced skin TSLP expression occurred as early as 1 h after allergen challenge, whereas TSLPR(+) and CD11c(+) cells infiltrated relatively late (24-48 h). The majority of TSLPR(+) cells were DC co-expressing blood DC antigen-1 (BDCA-1) or BDCA-2. Freshly isolated blood DC expressed both TSLPR and IL-7Ralpha chains. Maturation and stimulation with TSLP or polyriboinosinic-polyribocytidylic acid in vitro upregulated the expression of both TSLPR and IL-7Ralpha chains in DC but not in chemoattractant receptor-homologous molecule expressed on Th2 cells(+) CD4(+) T cells. CONCLUSION The data suggest that TSLP plays a role in augmenting, through DC recruitment and activation, the development of Th2-type T cells in allergic inflammation.
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MESH Headings
- Adolescent
- Adult
- Allergens/immunology
- Antigens, CD1
- Antigens, Surface/immunology
- Antigens, Surface/metabolism
- CD4-Positive T-Lymphocytes/drug effects
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- Cytokines/biosynthesis
- Cytokines/immunology
- Cytokines/pharmacology
- Dendritic Cells/drug effects
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Glycoproteins
- Humans
- Hypersensitivity/immunology
- Hypersensitivity/metabolism
- Interferon Inducers/pharmacology
- Interleukin-15/pharmacology
- Interleukin-7/pharmacology
- Lectins, C-Type/immunology
- Lectins, C-Type/metabolism
- Membrane Glycoproteins/immunology
- Membrane Glycoproteins/metabolism
- Middle Aged
- Poly I-C/pharmacology
- Receptors, Cytokine/agonists
- Receptors, Cytokine/immunology
- Receptors, Cytokine/metabolism
- Receptors, Immunologic/immunology
- Receptors, Immunologic/metabolism
- Receptors, Interleukin-7/agonists
- Receptors, Interleukin-7/immunology
- Receptors, Interleukin-7/metabolism
- Skin/immunology
- Skin/pathology
- Young Adult
- Thymic Stromal Lymphopoietin
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158
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Svarcova O, Dinnyes A, Polgar Z, Bodo S, Adorjan M, Meng Q, Maddox-Hyttel P. Nucleolar re-activation is delayed in mouse embryos cloned from two different cell lines. Mol Reprod Dev 2009; 76:132-41. [DOI: 10.1002/mrd.20936] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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159
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Meng Q, Wang W, Fang C, Z. L, Fan Y, An Y, Wang Y, Liu Y, Lee T, Corrigan C. IL-25 and Its Receptor (IL-25R) in Allergic Inflammation: Its Role in VEGF-mediated Angiogenesis. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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160
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Fang C, Meng Q, Lee T, Corrigan C, Ying S. Mechanisms of Action of the Resistin-like Molecule (RELM)-β) in Asthmatic Airways Remodelling. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.172] [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]
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161
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Wan C, Meng Q, Yang Z, Tu X, Feng C, Tang X, Zhang C. Validation of the simplified Chinese version of EORTC QLQ-C30 from the measurements of five types of inpatients with cancer. Ann Oncol 2008; 19:2053-60. [PMID: 18653703 DOI: 10.1093/annonc/mdn417] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND European Organization for Research and Treatment quality of life (QOL) questionnaire (QLQ-C30) has been used frequently and many language versions have been developed, including the simplified Chinese version. It is important to study psychometric properties of the simplified Chinese version from the clinical standpoint. PATIENTS AND METHODS The simplified Chinese version of the QLQ-C30 was used in a longitudinal study of 600 patients with five types of cancer: lung, breast, head and neck, colorectal, and stomach. The psychometric properties of the scale were evaluated by indicators of validity and reliability coefficients such as Cronbach's alpha and Pearson's correlation coefficient r, standardized response mean (SRM), correlational analysis, t-tests, and structural equation models. RESULTS Correlation and structural equation model analyses confirmed good construct validity with root mean square error of approximation 0.054, standardized root mean square residual 0.037, non-normed fit index 0.972, and comparative fit index 0.980. The alpha coefficients for all domains are >0.7 except for cognitive functioning (0.49). The test-retest reliability coefficients for most domains are >0.80 except for appetite loss (0.77) and diarrhea (0.75). The QOL score changes after treatments were of statistical significance with higher or moderate SRM in most domains. CONCLUSION The simplified Chinese version of QLQ-C30 has good validity, reliability, and responsiveness and can be used to measure QOL for Chinese cancer patients.
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162
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Sun Q, Meng Q, Yip W, Yin X, Li H. DOT in rural China: experience from a case study in Shandong Province, China. Int J Tuberc Lung Dis 2008; 12:625-630. [PMID: 18492328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
SETTING Four counties at varying levels of economic development in Shandong Province were sampled. All offered tuberculosis (TB) directly observed treatment (DOT) treatment at the County TB Dispensary (CTBD). OBJECTIVE To empirically document how DOT and home visits were implemented in rural China and to shed light on whether DOT is one of the key elements through which China achieves its high cure rates for TB. DESIGN A total of 404 rural smear-positive TB patients registered in the CTBDs were interviewed face-to-face with structured questionnaires. Village doctors and key informants from the CTBDs were also interviewed. RESULTS The majority of TB patients in rural areas do not receive DOT from village doctors and rarely get support, such as visits as required, from the CTBDs or township health providers in Shandong, China. CONCLUSION The lack of DOT in Shandong does not have a negative effect on TB treatment outcomes. Given that the DOTS strategy is still the core measure of TB control in China, implementation of other programme elements apart from DOT is necessary to ensure a successful TB treatment programme.
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163
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Meng Q, Polgar Z, Liu J, Dinnyes A. 45 EFFECT OF TRICHOSTATIN A TREATMENT ON THE TERM DEVELOPMENT OF SOMATIC CELL NUCLEAR TRANSFER RABBIT EMBRYOS. Reprod Fertil Dev 2008. [DOI: 10.1071/rdv20n1ab45] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The efficiency of somatic cell nuclear transfer (SCNT) is low in the rabbit. So far, there have been few live births reported and most clones died within the first 3 weeks after birth. It has been shown that treatment with trichostatin A (TSA), a histone deacetylase inhibitor, improved cloning efficiency in cattle (Enright et al. 2003 Biol. Reprod. 69, 896–901) and mice (Kishigami et al. 2006 Biochem. Biophys. Res. Commun. 340, 183–189; Rybouchkin et al. 2006 Biol. Reprod. 74, 1083–1089). Although a recent report indicated that TSA treatment could increase the cell number of rabbit SCNT blastocysts (Xu et al. 2007 Reprod. Fertil. Dev. 19, 165), term development of TSA-treated cloned embryos in this species has not been reported. In this study we investigated the effect of TSA treatment on the term development of somatic cell nuclear transfer (SCNT) rabbit embryos. The oocytes and cumulus cells were collected from superovulated Hycole hybrid rabbits. After staining with Hoechst 33342 and locating following 1–2 s of UV illumination, the nuclei of oocytes were removed by micromanipulation, A cumulus cell was then inserted into the perivitelline space and fused with the cytoplast with three 20 μs 3.2 kV cm–1 DC pulses. Fused embryos were activated using the same electrical parameters 1 h later, treated with 2 mm 6-dimethylaminopurine and 5 μg mL–1 cycloheximide for 1 h, and then subsequently cultured in Earles Balanced Salt Solution (EBSS) with or without 5 nm TSA for 10 h. The embryos were then cultured in EBSS either overnight (before ET) or for 4.5 days. Embryos were transferred at the 2- to 4-cell stages to the recipients 22 h after collection of the oocytes from the donors. Caesarean sections were performed on Day 30 post-ET. In vitro developmental data (Table 1) showed no differences in the cleavage, blastocyst rates, and blastocyst cell numbers between the TSA-treated or untreated cloned embryos. After ET in the TSA group, one pregnant female delivered 7 live and 3 stillborn pups, but all of the live pups died within 1 h to 19 days later. In the untreated group, one pregnant female gave birth to 2 live and 1 stillborn pup. One pup died within 1 h after birth; the other survived (2.5 months old when this abstract was submitted). In conclusion, the results indicate that TSA treatment has a limited effect on in vitro development of SCNT embryos, and both TSA-treated and untreated SCNT clones can develop to term in rabbit. The effects of TSA treatment on the health of clones need further investigation.
Table 1. In vitro and in vivo development of SCNT rabbit embryos with or without TSA treatment
This study was supported by Wellcome Trust (Grant No. 070246), EU FP6 (MEXT-CT-2003-509582, MRTN-CT-2006-035468), and Chinese-Hungarian Bilateral projects (TET CHN-28/04, CHN-41/05).
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164
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Svarcova O, Dinnyes A, Polgar Z, Bodo S, Adorjan M, Meng Q, Udupa R, Wang MK, Maddox-Hyttel P. 57 GENOME ACTIVATION IN MOUSE EMBRYOS OF DIFFERENT ORIGIN. Reprod Fertil Dev 2008. [DOI: 10.1071/rdv20n1ab57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Major genome activation is a key event in early embryonic development occurring at the late 2-cell stage in the mouse. Concomitantly occurring molecular and ultrastructural changes in the nucleolus, where the ribosomal RNA genes are transcribed and their transcripts processed, enable the use of this organelle as a sensitive marker of genome activation in embryos produced by different techniques. The aim of this study was to evaluate and compare the genome activation in mouse embryos of different origin using the nucleolus as a marker. Early and late 2-cell- and late 4-cell-stage embryos, prepared by in vitro fertilization (IVF), parthenogenetic activation (PG), and somatic cell nuclear transfer of mouse embryonic fibroblast (MEF), and mouse HM1 embryonic stem cells (HM1) were processed for autoradiography following 3H-uridine incubation and transmission electron microscopy (5 embryos per group) and for immunofluorescence for detection of nucleolar proteins involved in rRNA synthesis (upstream binding factor; UBF) and processing (nucleophosmin; B23) (10–21 embryos per group). Early 2-cell embryos in all groups showed transcriptional activity in the nucleoplasm, but not over nucleolar precursor bodies (NPBs). UBF was localized diffusely in the cytoplasm. B23 was, likewise, localized in the cytoplasm and, in 30% of embryos, in the nucleoplasm. Late 2-cell IVF and PG embryos displayed transcriptional labelling over nucleoplasm and NPBs, which, ultrastructurally, were in the process of transformation into fibrillo-granular nucleoli presenting fibrillar centers, a dense fibrillar component, and a granular component. MEF and HM1 embryos displayed transcriptional labelling over nucleoplasm, but not over NPBs, and the transformation into functional nucleoli was never observed at this stage of development. UBF and B23 were in all groups localized in the nucleoplasm and, in 40–50% of cases, distinctly in the developing nucleoli. At the late 4-cell stage, all embryos presented transcriptional labelling over nucleoplasm and NPBs, which were at different levels of transformation into fibrillo-granular nucleoli. UBF and B23 were distinctly localized in these developing nucleoli. However, whereas fully transformed reticulated fibrillo-granular nucleoli without remnants of NPBs were found in IVF and PG embryos, despite the distinct localization of nucleolar proteins, the nucleoli in MEF and HM1 embryos were not reticulated and still displayed remnants of NPBs. Conclusively, embryos reconstructed by nuclear transfer, independent of cell origin, displayed well-timed extranucleolar genomic activation, but delayed transformation of NPBs into reticulated fibrillo-granular nucleoli. Moreover, the proper nucleolar activation noted in PG embryos activated in the same manner as MEF and HM1 embryos demonstrate that somatic and embryonic stem cell factors exert an influence on nucleolar activation and may cause reduced embryo viability.
This work was supported by the Specific Targeted Project (MED-RAT; contract LSHG-CT-2006-518240) and Marie Curie ResearchTraining Networks (CLONET; contract 035468-2).
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165
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Shen C, Meng Q, Zhang G, Hu W. Rifampicin exacerbates isoniazid-induced toxicity in human but not in rat hepatocytes in tissue-like cultures. Br J Pharmacol 2007; 153:784-91. [PMID: 18071298 DOI: 10.1038/sj.bjp.0707611] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND PURPOSE Rifampicin has been extensively reported to exacerbate the hepatotoxicity of isoniazid in patients with tuberculosis. However, this was controversially claimed by previous reports using rat models. This study evaluated the effect of rifampicin on isoniazid-induced hepatocyte toxicity by using human and rat hepatocytes in tissue-like culture. EXPERIMENTAL APPROACH Hepatocytes in tissue-like gel entrapment were used to examine isoniazid toxicity, as shown by cell viability, intracellular glutathione content and albumin secretion. For demonstration of the differential effects of rifampicin on human and rat hepatocytes, induction by rifampicin of cytochrome P450 (CYP) 2E1, a major enzyme associated with isoniazid hepatotoxicity, was detected by 4-nitrocatechol formation and RT-PCR analysis. KEY RESULTS Rifampicin (12 microM) enhanced isoniazid-induced toxicity in human hepatocytes but not in rat hepatocytes. Enhanced CYP 2E1 enzymic activity and mRNA expression were similarly detected in human hepatocytes but not in rat hepatocytes. Both rat and human hepatocytes in gel entrapment were more sensitive to isoniazid treatment compared with the corresponding hepatocytes in a monolayer culture. CONCLUSIONS AND IMPLICATIONS The difference in induction of CYP 2E1 by rifampicin between rat and human hepatocytes accounted for the difference in exacerbation of isoniazid hepatocyte toxicity by rifampicin, with more significant toxicity in gel entrapment than in monolayer cultures. Thus, human hepatocytes in tissue-like cultures (gel entrapment) could be an effective model for hepatotoxicity research in vitro, closer to the in vivo situation.
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166
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Deng D, Wang J, Ren L, Zhou Z, Meng Q. The effect of different doses of Astragalus root
extract on in vitro rumen fermentation of steam-flaked maize grains used as an only substrate. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74479/2007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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167
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Ding J, Zhang L, Wan R, Ren L, Meng Q. Disintegration of starch crystal structure by steam
flaking may be responsible for the improvement
of in vitro ruminal fermentation of steam flaked
sorghum grains. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74579/2007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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168
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Yan G, Wang J, Cao C, Xin H, Wan L, Meng Q. Comparison of chemical contents and in vitro
nutrient digestibility of maize stalks from high oil
maize with conventional or specific fodder maize. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74415/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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169
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He W, Zhang Q, Ren L, Meng Q. Effect of supplemental β-carotene in the
periparturient diet on plasma vitamin A and
β-carotene concentrations and lymphocyte
proliferation in Holstein cows. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74567/2007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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170
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Xin H, Ren L, Zhou Z, Sun C, Liu Q, Meng Q. Effect of polyurethane coated urea on ruminal
ammonia release and fermentation characteristics
<i>in vitro</i> of steam-flaked maize-based diet. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74490/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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171
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Wan R, Ding J, Zhou Z, Ren L, Meng Q. Regulation of proliferation and differentiation
of Luxi bovine intramuscular preadipocytes by
propionate. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74521/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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172
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Zhang H, Meng Q, Zhou Z, Sun C, Ren L. The profile of alkali-soluble phenolic acids in maize
stover, and rice and wheat straws. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74419/2007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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173
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Guo W, Ren L, Zhou Z, Meng Q. Difference of nitrogen contents determined by the
combustion and Kjeldahl method in response to
nitrate nitrogen in some feedstuffs. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74480/2007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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174
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Can M, Wang L, Meng Q, Ren L, Zhou Z. Effect of yeast culture or cellulolytic enzymes in
licking blocks on rumen fermentation and fibre
degradation <i>in vitro</i>. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74590/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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175
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Xia Z, Meng Q. Effects of different proportions of dietary structural
and nonstructural carbohydrates on ruminal
fermentation and microbial growth efficiency in
sheep. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74492/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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176
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Lu L, Xia Z, Lin M, Wang X, Meng Q. Effects of dietary concentrate level on ruminal
fermentation and microbial growth efficiency in
dual flow continuous culture. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74489/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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177
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Wei J, Xin H, Meng Q, Ren L, Zhou Z. Effect of Picrasma quassioides plant extract, yeast
culture and monensin on in vitro mixed ruminal
microorganism fermentation of wheat starch. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74615/2007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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178
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Xue H, Deng Y, Zhou Z, Ren L, Meng Q. Effect of two methods of Van Soest fibre detergent
system on monosaccharide compositions of acid
detergent residues. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74591/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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179
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Du W, Wan L, Sun C, Song H, Meng Q. Effect of processing dejuiced sweet sorghum
residues on ruminal fermentation characteristics
<i>in vitro</i>. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74414/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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180
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Zhang Y, Deng X, Zhou Z, Ren L, Meng Q. Effects of processing maize grains and soyabean
on rumen fermentation and development
of Holstein bull calves. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74599/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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181
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Zhao J, Xiong Y, Du J, Meng Q. Comparison of different maize stalk sources in
China’s dairy production based on the Cornell
system. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/74593/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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182
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Qiao F, Yao H, Lu L, Wang X, Meng Q. Comparison of chemical composition, starch
gelatinization and <i>in vitro</i> ruminal fermentation
characteristics of different types of maize grains. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/75599/2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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183
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Fan S, Meng Q, Laterra JJ, Rosen EM. Ras effector pathways modulate scatter factor-stimulated NF-kappaB signaling and protection against DNA damage. Oncogene 2007; 26:4774-96. [PMID: 17297451 DOI: 10.1038/sj.onc.1210271] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Scatter factor (SF) (hepatocyte growth factor) is a pleiotrophic cytokine that accumulates within tumors in vivo and protects tumor cells against cytotoxicity and apoptosis due to DNA damaging agents in vitro. Previous studies have established that SF-mediated cell protection involves antiapoptotic signaling from its receptor (c-Met) to PI3 kinase --> c-Akt --> Pak1 (p21-activated kinase -1) --> NF-kappaB (nuclear factor-kappa B). Here, we found that Ras proteins (H-Ras and R-Ras) enhance SF-mediated activation of NF-kappaB and protection of DU-145 and MDCK (Madin-Darby canine kidney) cells against the topoisomerase IIalpha inhibitor adriamycin. Studies of Ras effector loop mutants and their downstream effectors suggest that Ras/PI3 kinase and Ras/Raf1 pathways contribute to SF stimulation of NF-kappaB signaling and cell protection. Further studies revealed that Raf1 positively regulates the ability of SF to stimulate NF-kappaB activity and cell protection. The ability of Raf1 to stimulate NF-kappaB activity was not due to the classical Raf1 --> MEK1/2 --> ERK1/2 pathway. However, we found that a MEK3/6 --> p38 pathway contributes to SF-mediated activation of NF-kappaB. In contrast, RalA, a target of the Ras/RalGDS pathway negatively regulated the ability of SF to stimulate NF-kappaB activity and cell protection. Ras, Raf1 and RalA modulate SF stimulation of NF-kappaB activity, in part, by regulating IkappaB kinase (IKK)-beta kinase activity. These findings suggest that Ras/Raf1/RalA pathways may converge to modulate NF-kappaB activation and SF-mediated survival signaling at the IKK complex and/or a kinase upstream of this complex.
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184
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Wolff B, Meng Q, Souba W, Pan M. P50. J Surg Res 2007. [DOI: 10.1016/j.jss.2006.12.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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185
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Meng Q, O'Connor B, Ratoff J, Cousins D, Zhang G, Gu S, Zhao J, Lee T, Corrigan C, Ying S. Comparison of Expression and Cellular Provenance of Thymic Stromal Iymphopoietin and Chemokines in Patients with Severe Asthma, COPD and Controls. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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186
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Wu D, Zheng X, Meng Q, Zhu F. Study of the Dispersion Capability of an In-Situ Bubble Stretching Method Used for Preparing Polymer Nanocomposites. JOURNAL OF POLYMER ENGINEERING 2006. [DOI: 10.1515/polyeng.2006.26.8-9.941] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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187
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Xu J, Gao M, Fan S, Meng Q, Goldberg ID, Abounader R, Ressom H, Laterra JJ, Rosen EM. Effect of Akt inhibition on scatter factor-regulated gene expression in DU-145 human prostate cancer cells. Oncogene 2006; 26:2925-38. [PMID: 17099727 DOI: 10.1038/sj.onc.1210088] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The cytokine scatter factor (SF) (hepatocyte growth factor) transduces various biologic actions, including cell motility, invasion, angiogenesis and apoptosis inhibition. The latter is relevant to understanding the role of SF in promoting tumor cell survival in different contexts, for example, detachment from basement membrane, growth in metastatic sites and responses to chemo- and radiotherapy. Previously, we showed that SF protects cells against apoptosis owing to DNA damage, by a mechanism involving phosphoinositol-3-kinase/c-Akt signaling. Here, we used DNA microarray assays to identify c-Akt-regulated genes that might contribute to cell protection. DU-145 human prostate cancer cells were transfected+/-a dominant-negative mutant Akt, treated+/-SF and analysed for gene expression using Affymetrix arrays. These studies identified SF-regulated genes for which induction was c-Akt-dependent vs -independent. Selected microarray findings were confirmed by semiquantitative and quantitative reverse transcription-polymerase chain reaction. We tested the contribution of four SF-inducible/c-Akt-dependent genes (AMPD3, EPHB2, MX1 and WNT4) to protection against adriamycin (a DNA topoisomerase IIalpha inhibitor) using RNA interference. Knockdown of each gene except EPHB2 caused a small but significant reduction in the SF cell protection. The lack of effect of EPHB2 knockdown may be due to the fact that DU-145 cells contain a single-mutant EPHB2 allele. A combination of three small interfering RNAs blocked most of the protection by SF in both DU-145 and T47D cells. These findings identify novel c-Akt-regulated genes, some of which contribute to SF-mediated cytoprotection.
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188
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Dong X, Meng Q, Xiong Y. A comparison of buffered propionic acid and
Propionibacterium acidipropionici as additives for
high oil maize stover silage. JOURNAL OF ANIMAL AND FEED SCIENCES 2006. [DOI: 10.22358/jafs/66939/2006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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189
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Yu Z, Meng Q, Yu H, Fan B, Yu S, Fei J, Wang L, Dai Y, Li N. Expression and bioactivity of recombinant human lysozyme in the milk of transgenic mice. J Dairy Sci 2006; 89:2911-8. [PMID: 16840606 DOI: 10.3168/jds.s0022-0302(06)72563-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Human milk lysozyme is an important protein for innate immunity, but human breast milk is a fairly poor source for commercial production of this enzyme. Research on the expression of recombinant human lysozyme (rHlys) is therefore potentially valuable to the dairy industry. In this study, 2 different kinds of transgenic mice, PBC-hLY and PBC-sighLY, were generated and used as system models to express rHlys. Six lines of PBC-hLY transgenic mice with human lysozyme genomic DNA-based constructs were generated, and a maximum expression level of rHlys approaching 0.154 mg/mL was achieved. Antibacterial activity of the whey from PBC-hLY female transgenic mice was determined by a turbidimetric assay. Results showed that antibacterial activity of the whey was strongly enhanced, and confirmed that rHlys retained full activity. For rHlys to be secreted efficiently into the milk of transgenic mice, 5 lines of mice were also generated, in which the signal peptide DNA of bovine beta-casein was substituted for that of lysozyme in PBC-hLY transgenic mice. Compared with PBC-hLY transgenic mice, both the expression levels of rHlys and the antibacterial activity of the whey were much higher in the PBC-sighLY transgenic mice. The concentration of rHlys in one of these mice amounted to 1.405 mg/mL-3 times higher than the level in human whey. The antibacterial activity of the whey was also 3 times higher than that of human whey. The rHlys from both PBC-hLY and PBC-sighLY transgenic mice had the same antibacterial activity as human milk lysozyme. The effect of the signal peptide and copy numbers of the transgene on expression of rHlys was also evaluated. This work will certainly permit a better understanding of how mammary gland bioreactor systems can be applied to produce rHlys in other mammals, such as cattle.
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190
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Hao S, Ye Z, Li F, Meng Q, Qureshi M, Yang J, Xiang J. Epigenetic transfer of metastatic activity by uptake of highly metastatic B16 melanoma cell-released exosomes. Exp Oncol 2006; 28:126-31. [PMID: 16837903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
AIM To investigate potential role of highly metastatic BL6-10 tumor cell-released exosomes (EXO) in transfer of metastatic activity into poorly metastatic tumor cell line F1. METHODS The highly metastatic B16 melanoma cell line (BL6-10) was generated in our laboratory. EXO from this cell line were isolated and amount of exosomal recovered proteins was measured using Bradford assay. For phenotypic analysis BL6-10 and F1 melanoma cells were stained with FITC-conjugated anti-MHC I (H-2K(b)), MHC II (Ia(b)) and Met 72 antibodies and analyzed by flow cytometry. C57BL/6 mice (8 per group) were injected (i. v.) with 0.5 x 10(6) F1, BL6-10 and F1(EXO) melanoma cells. Lungs were removed 4 weeks after tumor cell injection, fixed in 10% neutral buffered formaldehyde and embedded in paraffin for histological analysis. RESULTS Data revealed that BL6-10 cells expressed metastasis marker (Met 72 tumor antigen), while F1 cells did not display this cell surface marker. All mice inoculated with BL6-10 melanoma cells had numerous lung tumor colonies, while mice injected with F1 tumor cells were free of lung metastatic colonies. BL6-10 tumor cells-released EXO also expressed Met 72 tumor antigen as BL6-10 tumor cells, but in less amount. F1 tumor cells can uptake EXO from BL6-10 tumor cells and express acquired exosomal Met 72 tumor antigen. CONCLUSION The metastatic activity of highly metastatic BL6-10 tumor cells can be transferred to poorly metastatic F1 tumor cells by uptake of highly metastatic BL6-10 tumor-released EXO.
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191
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Abstract
p21-activated protein kinase 1 (Pak1) plays an important role in several cellular processes, including cytoskeleton reorganization, promotion of the cell survival, and the estrogen receptor (ER) signaling. Pak1 expression and activity is deregulated in a number of cancers. Pak1 is activated by a variety of physiological signals; however, less is known about the negative regulators of Pak1. Here, we report a negative regulator of Pak1. By performing a yeast two-hybrid screen of a mammary gland library, we identified cysteine-rich inhibitor of Pak1 (CRIPak) as a novel Pak1-interacting protein. We found that CRIPak is an intronless gene that localized to chromosome 4p16.3. It contains 13 zinc-finger domains and has three trypsin inhibitor-like, cysteine-rich domains and is widely expressed in a number of human cells and tissues. We further found that CRIPak interacted with Pak1 through the N-terminal regulatory domain and inhibited Pak1 kinase in both in vitro and in vivo assays. CRIPak inhibited Pak1-mediated LIM kinase activation and enhancement of ER transactivation. Conversely, selective inhibition of the endogenous CRIPak resulted in an increased Pak1 activity, and consequently, increased cytoskeleton remodeling and Pak1-mediated ER transactivation activity. The hormonal stimulation of cells enhanced CRIPak expression and promoted its colocalization with ER in the nuclear compartment. Our findings suggest that CRIPak is a novel negative regulator of the Pak1 and has a role in the modulation of Pak1-mediated ER transactivation in breast cancer cells.
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192
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Fan S, Meng Q, Auborn K, Carter T, Rosen EM. BRCA1 and BRCA2 as molecular targets for phytochemicals indole-3-carbinol and genistein in breast and prostate cancer cells. Br J Cancer 2006; 94:407-26. [PMID: 16434996 PMCID: PMC2361140 DOI: 10.1038/sj.bjc.6602935] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Indole-3-carbinol (I3C) and genistein are naturally occurring chemicals derived from cruciferous vegetables and soy, respectively, with potential cancer prevention activity for hormone-responsive tumours (e.g., breast and prostate cancers). Previously, we showed that I3C induces BRCA1 expression and that both I3C and BRCA1 inhibit oestrogen (E2)-stimulated oestrogen receptor (ER-α) activity in human breast cancer cells. We now report that both I3C and genistein induce the expression of both breast cancer susceptibility genes (BRCA1 and BRCA2) in breast (MCF-7 and T47D) and prostate (DU-145 and LNCaP) cancer cell types, in a time- and dose-dependent fashion. Induction of the BRCA genes occurred at low doses of I3C (20 μM) and genistein (0.5–1.0 μM), suggesting potential relevance to cancer prevention. A combination of I3C and genistein gave greater than expected induction of BRCA expression. Studies using small interfering RNAs (siRNAs) and BRCA expression vectors suggest that the phytochemical induction of BRCA2 is due, in part, to BRCA1. Functional studies suggest that I3C-mediated cytoxicity is, in part, dependent upon BRCA1 and BRCA2. Inhibition of E2-stimulated ER-α activity by I3C and genistein was dependent upon BRCA1; and inhibition of ligand-inducible androgen receptor (AR) activity by I3C and genistein was partially reversed by BRCA1-siRNA. Finally, we provide evidence suggesting that the phytochemical induction of BRCA1 expression is due, in part, to endoplasmic reticulum stress response signalling. These findings suggest that the BRCA genes are molecular targets for some of the activities of I3C and genistein.
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193
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Ying S, Meng Q, Scadding G, Parikh A, Corrigan C, Lee T. Aspirine Sensitive Rhinosinusitis is Associated with Reduced E-prostanoid 2(EP2) Receptor Expression on Nasal Mucosal Inflammatory Cells. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.727] [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]
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194
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Haczku A, Ying S, Kierstein S, Meng Q, McVay L, Corrigan C, Wu G. Role of Resistin-Like Molecule (RELM)-β in Allergic Airway Inflammation. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.725] [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]
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195
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Lee M, Meng Q. Psychologically Inspired Sensory-Motor Development in Early Robot Learning. INT J ADV ROBOT SYST 2005. [DOI: 10.5772/5773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
We present an implementation of a model of very early sensory-motor development, guided by results from developmental psychology. Behavioural acquisition and growth is demonstrated through constraint-lifting mechanisms initiated by global state variables. The results show how staged competence can be shaped by qualitative behaviour changes produced by anatomical, computational and maturational constraints.
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196
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Ying S, O'Connor B, Ratoff J, Meng Q, Mallett K, Cousins D, Robinson D, Zhang G, Zhao J, Lee T, Corrigan C. Expression and cellular provenance of thymic stromal lymphopoietin and chemokines in patients with severe asthma and chronic obstructive pulmonary disease. J Allergy Clin Immunol 2005. [DOI: 10.1016/j.jaci.2004.12.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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197
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Meng Q, Choudry H, Karinch A, Lin C, Pan M. Mitogen-Activated Protein Kinases (MAPK) mediates Epidermal Growth Factor (EGF) up regulation of arginine transport in cultured intestinal epithelia. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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198
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Meng Q, Souba W, Epler M, Karinch A, Lin C, Vary T, Pan M. Regulation of intestinal glutamine absorption by transforming growth factor-beta. J Surg Res 2003. [DOI: 10.1016/j.jss.2003.08.185] [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]
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199
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Ying S, Khan LN, Meng Q, Barnes NC, Kay AB. Cyclosporin A, apoptosis of BAL T-cells and expression of Bcl-2 in asthmatics. Eur Respir J 2003; 22:207-12. [PMID: 12952249 DOI: 10.1183/09031936.03.00098902] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The late asthmatic reaction is characterised by elevated numbers of interleukin-4/interleukin-5/CD4-positive T-helper cells type 2 in bronchoalveolar lavage fluid (BALF). Cyclosporin A (CsA) is known to inhibit T-cell proliferation, induce apoptosis of CD4-positive T-cells and downregulate cytokine gene expression. It was assessed whether CsA-induced inhibition of the late asthmatic reaction was associated with apoptosis of BALF T-lymphocytes and other cell types, as well as expression of the antiapoptotic protein B-cell leukaemia/lymphoma 2 gene product (Bcl-2). BALF cells were obtained from asthmatics at baseline and 24 h after allergen-inhalation challenge following prior administration of CsA (n=13) or placebo (n=11). The number of apoptotic CD3-positive T-lymphocytes increased in the CsA but not the placebo group. The numbers of Bcl-2-positive cells were significantly reduced in the CsA but not the placebo group. The majority of Bcl-2-positive cells were CD3-positive T-lymphocytes. The beneficial effect of cyclosporin A in asthma may be related to its inhibitory effect on the late asthmatic reaction via induction of T-cell apoptosis and decreased B-cell leukaemia/lymphoma 2 gene product levels.
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Meng Q, Frankel GS, Colijn HO, Goss SH. Metallurgy: stainless-steel corrosion and MnS inclusions. Nature 2003; 424:389-90; discussion 390. [PMID: 12879059 DOI: 10.1038/424389b] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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