User profiles for Amy Pointon

Amy Pointon

Verified email at astrazeneca.com
Cited by 1290

[HTML][HTML] Exosomal delivery of doxorubicin enables rapid cell entry and enhanced in vitro potency

C Schindler, A Collinson, C Matthews, A Pointon… - PloS one, 2019 - journals.plos.org
Doxorubicin is a chemotherapeutic agent that is commonly used to treat a broad range of
cancers. However, significant cardiotoxicity, associated with prolonged exposure to doxorubicin…

[HTML][HTML] Doxorubicin In Vivo Rapidly Alters Expression and Translation of Myocardial Electron Transport Chain Genes, Leads to ATP Loss and Caspase 3 Activation

AV Pointon, TM Walker, KM Phillips, J Luo, J Riley… - PloS one, 2010 - journals.plos.org
Background Doxorubicin is one of the most effective anti-cancer drugs but its use is limited
by cumulative cardiotoxicity that restricts lifetime dose. Redox damage is one of the most …

Cardiac non-myocyte cells show enhanced pharmacological function suggestive of contractile maturity in stem cell derived cardiomyocyte microtissues

SM Ravenscroft, A Pointon, AW Williams… - Toxicological …, 2016 - academic.oup.com
The immature phenotype of stem cell derived cardiomyocytes is a significant barrier to their
use in translational medicine and pre-clinical in vitro drug toxicity and pharmacological …

Application of microphysiological systems to enhance safety assessment in drug discovery

…, U Marx, JT Mettetal, A Pointon… - Annual review of …, 2018 - annualreviews.org
Enhancing the early detection of new therapies that are likely to carry a safety liability in the
context of the intended patient population would provide a major advance in drug discovery. …

Assessment of cardiomyocyte contraction in human-induced pluripotent stem cell-derived cardiomyocytes

A Pointon, AR Harmer, IL Dale… - Toxicological …, 2015 - academic.oup.com
Functional changes to cardiomyocytes are a common cause of attrition in preclinical and
clinical drug development. Current approaches to assess cardiomyocyte contractility in vitro are …

[HTML][HTML] Characterization and validation of a human 3D cardiac microtissue for the assessment of changes in cardiac pathology

…, R Sargeant, J Basak, J Pilling, JR Barnes, A Pointon - Scientific reports, 2018 - nature.com
Pharmaceutical agents despite their efficacy to treat disease can cause additional unwanted
cardiovascular side effects. Cardiotoxicity is characterized by changes in either the function …

[HTML][HTML] On the potential of in vitro organ-chip models to define temporal pharmacokinetic-pharmacodynamic relationships

CW McAleer, A Pointon, CJ Long, RL Brighton… - Scientific reports, 2019 - nature.com
Functional human-on-a-chip systems hold great promise to enable quantitative translation
to in vivo outcomes. Here, we explored this concept using a pumpless heart only and heart:…

Time for a fully integrated nonclinical–clinical risk assessment to streamline QT prolongation liability determinations: A pharma industry perspective

…, E Martel, Y Okai, R Peri, A Pointon… - Clinical …, 2021 - Wiley Online Library
Defining an appropriate and efficient assessment of drug‐induced corrected QT interval (QTc)
prolongation (a surrogate marker of torsades de pointes arrhythmia) remains a concern of …

[HTML][HTML] Simultaneously discovering the fate and biochemical effects of pharmaceuticals through untargeted metabolomics

…, GR Lloyd, R Macdonald, A Wilson, A Pointon… - Nature …, 2023 - nature.com
Untargeted metabolomics is an established approach in toxicology for characterising
endogenous metabolic responses to xenobiotic exposure. Detecting the xenobiotic and its …

From the cover: high-throughput imaging of cardiac microtissues for the assessment of cardiac contraction during drug discovery

A Pointon, J Pilling, T Dorval, Y Wang… - Toxicological …, 2017 - academic.oup.com
Cardiotoxicity is a common cause of attrition in preclinical and clinical drug development.
Current in vitro approaches have two main limitations, they either are limited to low throughput …