Feasibility of single-cell analysis of model cancer and foetal cells in blood after isolation by cell picking

Tumour Biology : the Journal of the International Society for Oncodevelopmental Biology and Medicine
Julie SmithThore Hillig

Abstract

The objective of the present feasibility study was to transfer single cell line cells to either microscopy slides for downstream immune characterization or to polymerase chain reaction tubes for downstream DNA quantitation. Tumour cell lines, SKBR3 and MCF7 and trophoblast cell line JEG-3 were spiked in healthy donor blood. The CytoTrack system was used to scan the spiked blood samples to identify target cells. Individual target cells were identified, picked by use of a CytoPicker and deposited to either a microscopic slide or a polymerase chain reaction tube (PCR). Single tumour cells on microscopic slides were further immunostained with human epidermal growth factor receptor 2 (Her2) and epithelial cell adhesion molecule (EpCAM). From the picked cells in polymerase chain reaction tubes, DNA was amplified, quantified and used for Short Tandem Repeat genotyping. Depositing rare cells to microscopy slides was laborious with only five cells per hour. In this study with a trained operator, the picked cells had an 80.5% recovery rate. Depositing single trophoblast cells in PCR tubes was a faster process with 10 cells in 5 min. Immunostaining of isolated cells by both Her2 and EpCAM was possible but showed varying staining intensity...Continue Reading

References

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Methods Mentioned

BETA
fluorescence microscopy
PCR
genotyping
Assay
electrophoresis
Fluorescence
biopsy

Software Mentioned

Cytopicker
CytoTrack
GeneMapper ID×
DOPlify

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