Massively Parrell Rogue Cell Detection Using Serial Time-Encoded Amplified Microscopy of Inertially Ordered Cells in High Throughput Flow
Annual rept. 1 Aug 2011-31 Jul 2012
CALIFORNIA UNIV LOS ANGELES
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The aim of this project is to develop an instrument for high-throughput identification of rare circulating breast cancer cells to enable early detection and analysis of treatment effectiveness. While optical microscopy is useful for detailed examination of a small number of microscopic entities and hence identification of such cells, methods for conventional microscopy are incapable of statistically relevant evaluation and screening of large populations with high accuracy due to its low throughput and limited storage. During the second year of the CDMRP project, we succeeded in demonstrating an automated flow-through single-particle optical microscope that overcomes this limitation by performing sensitive blur-free image acquisition and non-stop real-time image-recording and classification of microparticles during high-speed flow. This is made possible by integrating ultrafast optical imaging technology, self-focusing microfluidic technology, optoelectronic communication technology, and information technology. To show the system s utility, we demonstrated high-throughput imagebased screening of budding yeast and rare breast cancer cells in spiked blood with an unprecedented throughput of 100,000 particless and a record false positive rate of one in a million. Our results were published in Proceedings of the National Academy of Sciences in July 2012 httpwww.pnas.orgcontentearly201206251204718109 and were also featured by UCLA Newsroom httpnewsroom.ucla.eduportaluclaworld-s-fastest-camera-used-to-235979.aspx.
- Medicine and Medical Research