User profiles for Shafiq U. Ahmed

Shafiq U Ahmed

Senior Lecturer in Molecular Biology, University of Sunderland
Verified email at sunderland.ac.uk
Cited by 2202

Glutamine synthetase activity fuels nucleotide biosynthesis and supports growth of glutamine-restricted glioblastoma

S Tardito, A Oudin, SU Ahmed, F Fack, O Keunen… - Nature cell …, 2015 - nature.com
L-Glutamine (Gln) functions physiologically to balance the carbon and nitrogen requirements
of tissues. It has been proposed that in cancer cells undergoing aerobic glycolysis, …

[PDF][PDF] Limited mitochondrial permeabilization causes DNA damage and genomic instability in the absence of cell death

G Ichim, J Lopez, SU Ahmed, N Muthalagu… - Molecular cell, 2015 - cell.com
During apoptosis, the mitochondrial outer membrane is permeabilized, leading to the
release of cytochrome c that activates downstream caspases. Mitochondrial outer membrane …

Selective inhibition of parallel DNA damage response pathways optimizes radiosensitization of glioblastoma stem-like cells

SU Ahmed, R Carruthers, L Gilmour, S Yildirim, C Watts… - Cancer research, 2015 - AACR
Glioblastoma is the most common form of primary brain tumor in adults and is essentially
incurable. Despite aggressive treatment regimens centered on radiotherapy, tumor recurrence …

Isoindolinone inhibitors of the murine double minute 2 (MDM2)-p53 protein− protein interaction: structure− activity studies leading to improved potency

…, J Liu, E Valeur, A Watson, SU Ahmed… - Journal of medicinal …, 2011 - ACS Publications
Inhibition of the MDM2-p53 interaction has been shown to produce an antitumor effect,
especially in MDM2 amplified tumors. The isoindolinone scaffold has proved to be versatile for …

Small-molecule inhibitors of the MDM2-p53 protein− protein interaction based on an isoindolinone scaffold

IR Hardcastle, SU Ahmed, H Atkins… - Journal of medicinal …, 2006 - ACS Publications
From a set of weakly potent lead compounds, using in silico screening and small library
synthesis, a series of 2-alkyl-3-aryl-3-alkoxyisoindolinones has been identified as inhibitors of …

Replication stress drives constitutive activation of the DNA damage response and radioresistance in glioblastoma stem-like cells

RD Carruthers, SU Ahmed, S Ramachandran… - Cancer research, 2018 - AACR
Glioblastoma (GBM) is a lethal primary brain tumor characterized by treatment resistance
and inevitable tumor recurrence, both of which are driven by a subpopulation of GBM cancer …

[HTML][HTML] Abrogation of radioresistance in glioblastoma stem-like cells by inhibition of ATM kinase

R Carruthers, SU Ahmed, K Strathdee… - Molecular …, 2015 - Elsevier
Resistance to radiotherapy in glioblastoma (GBM) is an important clinical problem and several
authors have attributed this to a subpopulation of GBM cancer stem cells (CSCs) which …

Isoindolinone-based inhibitors of the MDM2–p53 protein–protein interaction

IR Hardcastle, SU Ahmed, H Atkins, AH Calvert… - Bioorganic & medicinal …, 2005 - Elsevier
A series of 2-N-alkyl-3-aryl-3-alkoxyisoindolinones has been synthesised and evaluated as
inhibitors of the MDM2–p53 interaction. The most potent compound, 3-(4-chlorophenyl)-3-(4-…

PP2A inhibitor PME-1 drives kinase inhibitor resistance in glioma cells

…, X Qiao, M Jumppanen, E Peuhu, SU Ahmed… - Cancer research, 2016 - AACR
Glioblastoma multiforme lacks effective therapy options. Although deregulated kinase
pathways are drivers of malignant progression in glioblastoma multiforme, glioma cells exhibit …

[HTML][HTML] SIRT1 undergoes alternative splicing in a novel auto-regulatory loop with p53

CJ Lynch, ZH Shah, SJ Allison, SU Ahmed, J Ford… - PloS one, 2010 - journals.plos.org
Background The NAD-dependent deacetylase SIRT1 is a nutrient-sensitive coordinator of
stress-tolerance, multiple homeostatic processes and healthspan, while p53 is a stress-…