News

Visualizing better cancer treatment

A team of researchers from New York University has engineered nanoscale protein micelles capable of both delivering chemotherapeutic drugs and of being tracked by magnetic resonance imaging (MRI).

advertisement

The innovation falls into the category of "theranostics," meaning that it combines diagnostic capability and drug delivery, allowing researchers to administer therapy while also non-invasively monitoring the therapeutic progress and drastically reducing the need for surgical intervention.

The team is led by NYU Tandon School of Engineering Professor of Chemical and Biomolecular Engineering Jin Kim Montclare, who says: "Think of the analogy of a missile aimed at a target, with the chemotherapeutic drug as the missile and the cancer cells as the target. It s not enough to aim blindly; you need to carefully track the missile s progress and determine to what extent it is effective."

Her research paper, "Protein Engineered Nanoscale Micelles for Dynamic Magnetic Resonance and Therapeutic Drug Delivery," was published in the American Chemical Society journal ACS Nano. It was co-authored by Radiology Associate Professor Youssef Wadhghiri at the Center for Advanced Imaging Innovation and Research and the Center for Biomedical Imaging, both at the NYU School of Medicine; Lindsay Hill, a student working with both professors; Priya Katyal, a postdoctoral researcher in Montclare s lab; Minh Hoang and Zakia Youss, both researchers working with Wadhghiri; Joseph Frezzo, Cynthia Xu, and Xuan Xie, all former students of Montclare; and Erika Delgado-Fukushima, an undergraduate student in her lab.

The paper explains that engineered proteins provide an interesting template for designing fluorine-19 (19F) MRI contrast agents, yet progress has been hindered by the unpredictable relaxation properties of fluorine. (MRI relies upon detecting differences in the relaxation rates of the protons of water molecules within tissue, but there are times when the rates do not differ sufficiently between tissue types to produce useful contrast.)

As a solution, Montclare and her co-authors present the biosynthesis of a protein block copolymer containing amino acid building blocks with 19F, termed "fluorinated thermoresponsive assembled protein" (F-TRAP), which assembles into a nanoscale micelle with noteworthy imaging properties along with the ability to encapsulate and release small therapeutic molecules.

Previously, Montclare had developed a protein-lipid system capable of carrying not only small-molecule therapeutic drugs but nucleic acids for gene therapy at the same time, as a dual payload, in order to treat cancer, diabetes, and other conditions requiring a variety of therapeutic approaches.

"The strides Jin Montclare has made in protein engineering exemplify Tandon and NYU s commitment to collaborative, translational research with the potential to positively impact healthcare for countless patients," said NYU Tandon Dean Jelena Kova?evi?. "We are proud that she is effectively addressing problems of such great medical and societal importance."

advertisement

Materials provided by . Note: Content may be edited for style and length.

NYU Tandon School of Engineering. "Visualizing better cancer treatment: Researchers engineer a protein micelle that can be visualized by MRI as it delivers hemotherapeutics." ScienceDaily. ScienceDaily, 20 March 2019. .

NYU Tandon School of Engineering. "Visualizing better cancer treatment: Researchers engineer a protein micelle that can be visualized by MRI as it delivers hemotherapeutics." ScienceDaily. www.sciencedaily.com/releases/2019/03/190320120605.htm (accessed March 20, 2019).
Read more on sciencedaily.com
News Topics :
RELATED STORIES :
Science
This is an image of a one atom deep layer of molybdenum disulfide with electrodes patterned by hot nano tip in a new process called thermal scanning probe lithography. Researchers at NYU Tandon...
Technology
Washington State University researchers have developed a novel way to deliver drugs and therapies into cells at the nanoscale without causing toxic effects that have stymied other such efforts. advertisement...
Technology
A team of researchers from the New York University Tandon School of Engineering is working to upend energy intensive, fossil fuel dependent chemical manufacturing processes and replace them with sustainable, solar driven reactions...
Science
While the wisdom of the crowd shapes the behavior of large groups of people, less is known about small group dynamics and how individuals interact to make decisions, particularly when it...
Technology
Machine learning algorithms can predict stock market fluctuations, control complex manufacturing processes, enable navigation for robots and driverless vehicles, and much more. advertisement Now, researchers at the NYU Tandon School...