Rare cancer cell analyzer for whole blood applications: Automated nucleic acid purification in a microfluidic disposable card

被引:14
作者
Kokoris, M [1 ]
Nabavi, M [1 ]
Lancaster, C [1 ]
Clemmens, J [1 ]
Maloney, P [1 ]
Capadanno, J [1 ]
Gerdes, J [1 ]
Battrell, CF [1 ]
机构
[1] Micronics Inc, Redmond, WA 98052 USA
关键词
rare cell; nucleic acid purification; microfluidic card;
D O I
10.1016/j.ymeth.2005.07.002
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
One current challenge facing point-of-care cancer detection is that existing methods make it difficult, time consuming and too costly to (1) collect relevant cell types directly from a patient sample, such as blood and (2) rapidly assay those cell types to determine the presence or absence of a particular type of cancer. We present a proof of principle method for an integrated, sample-to-result, point-of-care detection device that employs microfluidics technology, accepted assays, and a silica membrane for total RNA purification on a disposable, credit card sized laboratory-on-card ("lab card") device in which results are obtained in minutes. Both yield and quality of on-card purified total RNA, as determined by both LightCycler and standard reverse transcriptase amplification of G6PDH and BCR-ABL transcripts, were found to be better than or equal to accepted standard purification methods. (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:114 / 119
页数:6
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