Single-cell barcode analysis provides a rapid readout of cellular signaling pathways in clinical specimens.

Single-cell barcode analysis provides a rapid readout of cellular signaling pathways in clinical specimens.
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DOI:
10.1038/s41467-018-07002-6
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发表时间:
2018-10-31
影响因子:
16.6
通讯作者:
Weissleder R
Weissleder R
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Giedt RJ;Pathania D;Carlson JCT;McFarland PJ;Del Castillo AF;Juric D;Weissleder R

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Serial tissue sampling has become essential in guiding modern targeted and personalized cancer treatments. An alternative to image guided core biopsies are fine needle aspirates (FNA) that yield cells rather than tissues but are much better tolerated and have lower complication rates. The efficient pathway analysis of such cells in the clinic has been difficult, time consuming and costly. Here we develop an antibody-DNA barcoding approach where harvested cells can be rapidly re-stained through the use of custom designed oligonucleotide-fluorophore conjugates. We show that this approach can be used to interrogate drug-relevant pathways in scant clinical samples. Using the PI3K/PTEN/CDK4/6 pathways in breast cancer as an example, we demonstrate how analysis can be performed in tandem with trial enrollment and can evaluate downstream signaling following therapeutic inhibition. This approach should allow more widespread use of scant single cell material in clinical samples. Diagnostic tests need optimization to avoid invasive and costly repeated biopsies. Here the authors present an antibody-DNA barcoding approach where harvested single cells can be re-stained through custom oligonucleotide-fluorophore conjugates, enabling multiplexed analysis of cancer pathways.
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