Parsortix evaluation - EU CANCER-ID13 Feb 2020 20:22
An interesting paper from University Medical Center Hamburg-Eppendorf was published today in Cancers Journal. Essentially it's a thorough and in depth evaluation of the Parsortix system on behalf of the EU/IMI CANCER-ID consortium. Some sound bites:-
'The established workflow will contribute to supporting the use of size-based CTC enrichment platforms in clinical trials testing the clinical validity and utility of CTCs for personalized medicine. '
'The CANCER ID consortium funded by the European Innovative Medicine Initiative (IMI), aimed to close this gap and validate innovative CTC detection approaches for future clinical trials. This standardization of novel technologies and workflows is much needed to increase the acceptance of CTCs as biomarkers in the clinic.'
'The Parsortix® system (ANGLE plc)-a size-based enrichment device - has been introduced to the CTC field and shown promising results across multiple tumor entities [19,20,21,22,23,24]. In addition to enumeration, the device has demonstrated its capabilities in isolating rare CTC clusters [24,25] and preserving cell viability following CTC enrichment '
Conclusions
Extensive examinations of pre-analytical and analytical variables using the label-independent Parsortix® system were performed in this study. Initial experimental results with spiked tumor cell line cells were cross-validated with clinical cancer patient samples and resulted in the identification of robust workflows for CTC detection utilizing this enrichment platform.
Depending on the nature of further downstream analysis, a combination of either EDTA blood samples with medium separation pressure or TransFix® preservative tubes with high separation pressure lead to optimal CTC detection from whole blood. Intact tumor cell morphology was maintained, as confirmed via immunocytochemical staining for both workflows. Furthermore, whole genome amplification on a single cell basis, a prerequisite for multiple downstream analyses, was highly efficient. Therefore, the established standardized workflows enable the enrichment of viable or fixed CTCs and allow for precise enumeration and successful downstream analysis of patient-derived CTCs.
Https://www.mdpi.com/2072-6694/12/2/442/htm#