14 results

Precision Medicine and the Role of Biomarkers of Radiotherapy Response in Breast Cancer

Journal Article
Meehan, J., Gray, M., Martínez-Pérez, C., Kay, C., Pang, L. Y., Fraser, J. A., …Turnbull, A. K. (2020)
Precision Medicine and the Role of Biomarkers of Radiotherapy Response in Breast Cancer. Frontiers in Oncology, 10, https://doi.org/10.3389/fonc.2020.00628
Radiotherapy remains an important treatment modality in nearly two thirds of all cancers, including the primary curative or palliative treatment of breast cancer. Unfortunatel...

hASH1 nuclear localization persists in neuroendocrine transdifferentiated prostate cancer cells, even upon reintroduction of androgen

Journal Article
Fraser, J. A., Sutton, J. E., Tazayoni, S., Bruce, I., & Poole, A. V. (2019)
hASH1 nuclear localization persists in neuroendocrine transdifferentiated prostate cancer cells, even upon reintroduction of androgen. Scientific Reports, 9, https://doi.org/10.1038/s41598-019-55665-y
Neuroendocrine prostate cancer (NEPC) is thought to arise as prostate adenocarcinoma cells transdifferentiate into neuroendocrine (NE) cells to escape potent anti-androgen the...

Silver nanoparticles promote the emergence of heterogeneic human neutrophil sub-populations

Journal Article
Kemp, S., Young, L., Ross, M., Prach, M., Hutchison, G. R., Malone, E., & Fraser, J. A. (2018)
Silver nanoparticles promote the emergence of heterogeneic human neutrophil sub-populations. Scientific Reports, 8(1), https://doi.org/10.1038/s41598-018-25854-2
Neutrophil surveillance is central to nanoparticle clearance. Silver nanoparticles (AgNP) have numerous uses, however conflicting evidence exists as to their impact on neutrop...

Preferential activation of HIF-2α adaptive signalling in neuronal-like cells in response to acute hypoxia

Journal Article
Martín-Aragón Baudel, M. A. S., Rae, M. T., Darlison, M. G., Poole, A. V., & Fraser, J. A. (2017)
Preferential activation of HIF-2α adaptive signalling in neuronal-like cells in response to acute hypoxia. PLOS ONE, 12(10), https://doi.org/10.1371/journal.pone.0185664
Stroke causes severe neuronal damage as disrupted cerebral blood flow starves neurons of oxygen and glucose. The hypoxia inducible factors (HIF-1α and HIF-2α) orchestrate oxyg...

Phosphomimetic Mutation of the N-Terminal Lid of MDM2 Enhances the Polyubiquitination of p53 through Stimulation of E2-Ubiquitin Thioester Hydrolysis

Journal Article
Fraser, J. A., Worrall, E. G., Lin, Y., Landre, V., Pettersson, S., Blackburn, E., …Hupp, T. R. (2015)
Phosphomimetic Mutation of the N-Terminal Lid of MDM2 Enhances the Polyubiquitination of p53 through Stimulation of E2-Ubiquitin Thioester Hydrolysis. Journal of Molecular Biology, 427(8), 1728-1747. https://doi.org/10.1016/j.jmb.2014.12.011
Mouse double minute 2 (MDM2) has a phosphorylation site within a lid motif at Ser17 whose phosphomimetic mutation to Asp17 stimulates MDM2-mediated polyubiquitination of p53. ...

Imaging of activated complement using ultrasmall superparamagnetic iron oxide particles (USPIO) - conjugated vectors: an in vivo in utero non-invasive method to predict placental insufficiency and abnormal fetal brain development.

Journal Article
Girardi, G., Fraser, J. A., Lennen, R., Vontell, R., Jansen, M., & Hutchison, G. (2015)
Imaging of activated complement using ultrasmall superparamagnetic iron oxide particles (USPIO) - conjugated vectors: an in vivo in utero non-invasive method to predict placental insufficiency and abnormal fetal brain development. Molecular Psychiatry, 20, 1017-1026. https://doi.org/10.1038/mp.2014.110
In the current study, we have developed a magnetic resonance imaging-based method for non-invasive detection of complement activation in placenta and foetal brain in vivo in u...

A Novel p53 Phosphorylation Site within the MDM2 Ubiquitination Signal: II. A MODEL IN WHICH PHOSPHORYLATION AT SER269 INDUCES A MUTANT CONFORMATION TO p53.

Journal Article
Fraser, J. A., Madhumalar, A., Blackburn, E., Bramham, J., Walkinshaw, M. D., Verma, C., & Hupp, T. R. (2010)
A Novel p53 Phosphorylation Site within the MDM2 Ubiquitination Signal: II. A MODEL IN WHICH PHOSPHORYLATION AT SER269 INDUCES A MUTANT CONFORMATION TO p53. Journal of Biological Chemistry, 285, 37773-37786. https://doi.org/10.1074/jbc.M110.143107
The p53 DNA-binding domain harbors a conformationally flexible multiprotein binding site that regulates p53 ubiquitination. A novel phosphorylation site exists within this reg...

A Novel p53 Phosphorylation Site within the MDM2 Ubiquitination Signal: I. PHOSPHORYLATION AT SER269 IN VIVO IS LINKED TO INACTIVATION OF p53 FUNCTION.

Journal Article
Fraser, J. A., Vojtesek, B., & Hupp, T. R. (2010)
A Novel p53 Phosphorylation Site within the MDM2 Ubiquitination Signal: I. PHOSPHORYLATION AT SER269 IN VIVO IS LINKED TO INACTIVATION OF p53 FUNCTION. Journal of Biological Chemistry, 285, 37762-37772. https://doi.org/10.1074/jbc.M110.143099
p53 is a thermodynamically unstable protein containing a conformationally flexible multiprotein docking site within the DNA-binding domain. A combinatorial peptide chip used t...

A Central Role for CK1 in Catalyzing Phosphorylation of the p53 Transactivation Domain at Serine 20 after HHV-6B Viral Infection

Journal Article
MacLaine, N. J., Øster, B., Bundgaard, B., Fraser, J. A., Buckner, C., Lazo, P. A., …Hupp, T. R. (2008)
A Central Role for CK1 in Catalyzing Phosphorylation of the p53 Transactivation Domain at Serine 20 after HHV-6B Viral Infection. Journal of Biological Chemistry, 283, 28563-28573. https://doi.org/10.1074/jbc.M804433200
The tumor suppressor protein p53 is activated by distinct cellular stresses including radiation, hypoxia, type I interferon, and DNA/RNA virus infection. The transactivation d...

The MDM2 Ubiquitination Signal in the DNA-Binding Domain of p53 Forms a Docking Site for Calcium Calmodulin Kinase Superfamily Members

Journal Article
Craig, A. L., Chrystal, J. A., Fraser, J. A., Sphyris, N., Lin, Y., Harrison, B. J., …Hupp, T. R. (2007)
The MDM2 Ubiquitination Signal in the DNA-Binding Domain of p53 Forms a Docking Site for Calcium Calmodulin Kinase Superfamily Members. Molecular and Cellular Biology, 27(9), 3542-3555. https://doi.org/10.1128/mcb.01595-06
Genetic and biochemical studies have shown that Ser20 phosphorylation in the transactivation domain of p53 mediates p300-catalyzed DNA-dependent p53 acetylation and B-cell tum...

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