35 research outputs found

    Leaf

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    2 volumes. Leaf was completed in 2017. The paper is Magnani Pescia 160 gsm. and the pre press work is by Chris Boone. The offset printing is by Redwood Prints. The book has been bound by Pohlmann Binders.. in an edition of 10 with 3 artist\u27s proofs. --colophon. Illustrated endpapers. Signed by the author. At the edge of a forest, a man sees a mysterious woman working at a table, sewing words on a collection of leaves. By asking a series of questions, the man ultimately discovers the true meaning of her work.https://digitalcommons.risd.edu/specialcollections_artistsbooks/1145/thumbnail.jp

    Severe metabolic alterations in liver cancer lead to ERK pathway activation and drug resistance

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    Background: The extracellular signal-regulated kinase (ERK) pathway regulates cell growth, and is hyper-activated and associated with drug resistance in hepatocellular carcinoma (HCC). Metabolic pathways are profoundly dysregulated in HCC. Whether an altered metabolic state is linked to activated ERK pathway and drug response in HCC is unaddressed. Methods: We deprived HCC cells of glutamine to induce metabolic alterations and performed various assays, including metabolomics (with 13C-glucose isotope tracing), microarray analysis, and cell proliferation assays. Glutamine-deprived cells were also treated with kinase inhibitors (e.g. Sorafenib, Erlotinib, U0126 amongst other MEK inhibitors). We performed bioinformatics analysis and stratification of HCC tumour microarrays to determine upregulated ERK gene signatures in patients. Findings: In a subset of HCC cells, the withdrawal of glutamine triggers a severe metabolic alteration and ERK phosphorylation (pERK). This is accompanied by resistance to the anti-proliferative effect of kinase inhibitors, despite pERK inhibition. High intracellular serine is a consistent feature of an altered metabolic state and contributes to pERK induction and the kinase inhibitor resistance. Blocking the ERK pathway facilitates cell proliferation by reprogramming metabolism, notably enhancing aerobic glycolysis. We have identified 24 highly expressed ERK gene signatures that their combined expression strongly indicates a dysregulated metabolic gene network in human HCC tissues. Interpretation: A severely compromised metabolism lead to ERK pathway induction, and primes some HCC cells to pro-survival phenotypes upon ERK pathway blockade. Our findings offer novel insights for understanding, predicting and overcoming drug resistance in liver cancer patients

    Amniocytes can serve a dual function as a source of iPS cells and feeder layers

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    Clinical barriers to stem-cell therapy include the need for efficient derivation of histocompatible stem cells and the zoonotic risk inherent to human stem-cell xenoculture on mouse feeder cells. We describe a system for efficiently deriving induced pluripotent stem (iPS) cells from human and mouse amniocytes, and for maintaining the pluripotency of these iPS cells on mitotically inactivated feeder layers prepared from the same amniocytes. Both cellular components of this system are thus autologous to a single donor. Moreover, the use of human feeder cells reduces the risk of zoonosis. Generation of iPS cells using retroviral vectors from short- or long-term cultured human and mouse amniocytes using four factors, or two factors in mouse, occurs in 5ā€“7 days with 0.5% efficiency. This efficiency is greater than that reported for mouse and human fibroblasts using similar viral infection approaches, and does not appear to result from selective reprogramming of Oct4+ or c-Kit+ amniocyte subpopulations. Derivation of amniocyte-derived iPS (AdiPS) cell colonies, which express pluripotency markers and exhibit appropriate microarray expression and DNA methylation properties, was facilitated by live immunostaining. AdiPS cells also generate embryoid bodies in vitro and teratomas in vivo. Furthermore, mouse and human amniocytes can serve as feeder layers for iPS cells and for mouse and human embryonic stem (ES) cells. Thus, human amniocytes provide an efficient source of autologous iPS cells and, as feeder cells, can also maintain iPS and ES cell pluripotency without the safety concerns associated with xenoculture

    RUINED INTENTIONS

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    Reckoning

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    Artist's books: an exhibition hosted by Rare Books 28 September - 25 November 2011

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    The exhibition was held in the Rare Books Exhibition space, Sir Louis Matheson Library, Monash University from 28 September - 25 November 2011 Opening address given by Sarah Bodman, Senior Research Fellow for Artists' Books, Centre for Fine Print Research (CFPR), University of the West of England. The Rare Books Collection hosted a display of Artists' books in conjunction with the international multi-disciplinary printmaking conference IMPACT7 2011 hosted by Monash University, Art & Design. The artists' books in this exhibition are created to reflect on political and social realities from several eras. Some items kindly loaned by Monica Oppe
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