Duckworth, CA 
ORCID: 0000-0001-7971-3561, Pritchard, David Mark ORCID: 0000-0001-7971-3561, Mihailuk, K, Simms, C, Reay, M, Madureira, P, Howarth, A, Murray, P, Nasser, S, Pilkington, GJ et al (show 1 more authors)
(2019)
IP1867B suppresses the insulin-like growth factor 1 receptor (IGF1R) ablating epidermal growth factor receptor inhibitor resistance in adult high grade gliomas
Cancer Letters, 458.
pp. 29-38.
ISSN 0304-3835, 1872-7980
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Text
Cancer Letters 2019.pdf - Author Accepted Manuscript Download (5MB) | Preview |
Abstract
High grade gliomas (HGGs)are aggressive primary brain tumours with local invasive growth and poor clinical prognosis. Clinical outcome is compounded by resistance to standard and novel therapeutics. We have evaluated reformulated aspirin (IP1867B)alone and in combination with conventional and novel anti-aHGG agents. We show that recent biopsy-derived aHGG models were highly resistant to conventional therapeutics although show sensitivity to IP1867B, a reformulated “liquid” aspirin. IP1867B treatment mediated a potent suppression of the IL6/STAT3 and NF-κB pathways and observed a significant reduction in EGFR transcription and protein expression. We observed the loss of the insulin-like growth factor 1 and insulin-like growth factor 1 receptor expression at both the transcript and protein level post IP1867B treatment. This increased sensitivity to EGFR inhibitors. In vivo, IP1867B was very well tolerated, had little-to-no gastric lesions versus aspirin and, directed a significant reduction of tumour burden with suppression of EGFR, IGF1 and IGFR1. With EGFR inhibitors, we noted a potent synergistic response in aHGG cells. These data provide a rationale for further investigation of IP1867B with a number of anti-EGFR agents currently being evaluated in the clinic.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Adult high grade glioma, Drug repurposing, EGFR, IGFR1 |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 04 Jun 2019 07:48 |
| Last Modified: | 22 Jan 2026 04:11 |
| DOI: | 10.1016/j.canlet.2019.05.028 |
| Related Websites: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3044223 |
| Disclaimer: | The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate. |
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