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Home»Medical»New imaging tool analyzes extracellular vesicles to track cancer progression
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New imaging tool analyzes extracellular vesicles to track cancer progression

November 5, 2024No Comments2 Mins Read
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New imaging tool analyzes extracellular vesicles to track cancer progression
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A University of Rochester research team is reporting a new way to detect cancer cells with a “liquid biopsy” that’s designed to be simpler, faster, and more informational than current methods.

What is a liquid biopsy? It is a non-invasive test that uses blood, urine, and other bodily fluids as a vehicle for finding cancer cells or other molecules released by tumors. A liquid biopsy can detect or screen for cancer or monitor progression of the disease and how the body responds to cancer treatment.

James McGrath, PhD, the William R. Kenan Jr. Professor of Biomedical Engineering at UR, and a member of the Wilmot Cancer Institute scientific team, led a collaboration to develop a tool that collects cellular material (genes and proteins) called extracellular vesicles (EVs). Selecting and analyzing EVs provides valuable information about diseases in the body.

Despite excitement and longstanding potential in this field, the problem has centered on the best way to analyze the “bioactive cargo” in EVs and develop an accurate biopsy tool.

Researchers describe current methods as costly, complex, and too limited because they don’t allow scientists to analyze multiple biomarkers simultaneously.

The UR imaging-based tool takes a digital approach and has proven in early studies to be more sensitive as it sorts hundreds of thousands of EVs. Researchers say it can detect cancer at earlier, more curable stages, and unpack the function of EVs, which play a role in the spread of cancer and the way the immune system responds to the disease.

Their work is reported in the journal Small, a nanoscience and nanotechnology publication, with Samuel Walker, a biomedical engineering student, as first author.

See also  New technology could revolutionize treatment for age-related macular degeneration

In addition, Jonathan Flax, MD, a research assistant professor in Urology, and Scott Gerber, PhD, associate professor of Surgery and cancer investigator at Wilmot, are collaborating to discover EV-based biomarkers to detect whether immunotherapy is working against cancer.

Future plans include using the new tool in clinical research to guide results of treatment-based clinical trials, McGrath said.

Source:

University of Rochester Medical Center

Journal reference:

Walker, S. N., et al. (2024) Rapid Assessment of Biomarkers on Single Extracellular Vesicles Using “Catch and Display” on Ultrathin Nanoporous Silicon Nitride Membranes. Small. doi.org/10.1002/smll.202405505.

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