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6548 Forest Park Pkwy, St. Louis, MO 63112, USA

https://imse.wustl.edu/
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Dr. Yong Zheng, Associate Professor and head of Analytical Division, Chemistry, University of Florida.

Liquid biopsy is an appealing paradigm in early diagnosis, prognosis, and precision treatment of cancer, as tissue biopsy is highly invasive, costly, and often infeasible to repeat. Extracellular vesicles (EVs), including exosomes, are emerging as a new modality of liquid biopsy for cancer diagnosis and precision medicine.  However, it remains challenging to isolate and measure these diverse nanosized vesicles in complex biological samples.  This talk will be focused on our recent progress in multi-modal engineering of microfluidic systems, nanomaterials-based biosensors, and biomolecular systems (e.g., CRISPR/Cas12a) to substantially improve isolation and molecular profiling of tumor-derived EVs with minute sample consumption.  Adaptation of these new engineering approaches to clinical profiling of circulating EVs will be demonstrated for diagnosis and monitoring of a variety of solid tumors, including breast, ovarian, and pancreatic cancers.  Our technologies were seen to improve the diagnostic power of the EV-based liquid biopsies compared to the conventional tests, which suggests their potential of translation into clinical utilities.  Overall, these multi-modal engineered systems would provide enabling biosensing capabilities to promote early diagnosis and precision medicine of cancer.

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