Journal article
The use of whole exome sequencing and murine patient derived xenografts as a method of chemosensitivity testing in sarcoma
Clinical Sarcoma Research, Vol.8, Article number: 4
2018
Abstract
Background
Soft tissue and bone sarcoma represent a broad spectrum of different pathology and genetic variance. Current chemotherapy regimens are derived from randomised trials and represent empirical treatment. Chemosensitivity testing and whole exome sequencing (WES) may offer personalized chemotherapy treatment based on genetic mutations.
Methods
A pilot, prospective, non-randomised control experimental study was conducted. Twelve patients with metastatic bone or soft tissue sarcoma that had failed first line chemotherapy treatment were enrolled for this study. Human tissue taken at surgical biopsy under general anaesthetic was divided between two arms of the trial. Subsections of the tumour were used for WES and the remainder was implanted subcutaneously in immunodeficient mice (PDX). Results of WES were analysed using a bioinformatics pipeline to identify mutations conferring susceptibility to kinase inhibitors and common chemotherapeutic agents. PDX models exhibiting successful growth underwent WES of the tumour and subsequent chemosensitivity testing.
Results
WES was successful in all 12 patients, with successful establishment PDX tumours models in seven patients. WES identified potential actionable therapeutics in all patients. Significant variation in predicted therapeutics was demonstrated between three PDX samples and their matched tumour samples.
Conclusion
Analysis of WES of fresh tumour specimens via a bioinformatics pipeline may identify potential actionable chemotherapy agents. Further research into this field may lead to the development of personalized cancer therapy for sarcoma.
Details
- Title
- The use of whole exome sequencing and murine patient derived xenografts as a method of chemosensitivity testing in sarcoma
- Authors/Creators
- N. Calvert (Author/Creator) - Sir Charles Gairdner HospitalJ. Wu (Author/Creator) - Harry Perkins Institute of Medical ResearchS. Sneddon (Author/Creator) - Harry Perkins Institute of Medical ResearchJ. Woodhouse (Author/Creator) - Hollywood Functional Rehabilitation Centre, 117 Stirling Hwy, Nedlands, WA 6009 Australia.R. Carey-Smith (Author/Creator) - Sir Charles Gairdner HospitalD. Wood (Author/Creator) - Sir Charles Gairdner HospitalE. Ingley (Author/Creator) - Harry Perkins Institute of Medical Research
- Publication Details
- Clinical Sarcoma Research, Vol.8, Article number: 4
- Publisher
- Biomed Central
- Identifiers
- 991005543281707891
- Copyright
- © The Author(s) 2018
- Murdoch Affiliation
- School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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