Smart molecules detect and treat cancer in one step

Researchers at NYU Abu Dhabi have created smart molecules that can both detect and treat cancer. This approach offers a safer and more precise way to care for patients than current methods.

The research, published in the Journal of the American Chemical Society, focuses on magnetic resonance imaging (MRI). Doctors use MRI widely to see tumors inside the body. While MRI agents help with diagnosis, they typically don't help with treatment. The NYU Abu Dhabi team designed molecules that combine both functions in one system.

How does it work?

These molecules are different from regular drugs in several key ways:

• They have interlocked structures that look like knots and rings
• They're made from manganese and organic components
• They stay inactive in healthy tissue but turn on inside tumors
• They respond to the slightly more acidic environment in tumors

Once activated, the molecules release manganese ions. These ions do two things at once - they make MRI scans clearer and they damage cancer cells. Thirumurugan Prakasam, a research scientist in the Trabolsi group at NYU Abu Dhabi, created these molecules.

The molecules can cross the blood-brain barrier and build up in glioblastoma tumors. This means doctors can get clear images of brain tumors, which are often hard to detect with existing contrast agents.

Why does it matter?

"Our goal was to create materials that allow doctors to see cancer clearly and treat it at the same time. The ability to image and target brain tumors with high precision is particularly exciting," the researchers said.

The technology was tested on aggressive glioblastoma tumors. These are some of the hardest cancers to diagnose and treat. Getting both clear imaging and a therapeutic effect in this model shows how strong this approach is.

The manganese-based compounds also offer a safer option than gadolinium. Gadolinium is a metal commonly used in MRI contrast agents, but it can build up in the body and cause side effects in some patients.

The context

Current cancer care often requires separate steps for diagnosis and treatment. Patients might need multiple scans and different drugs, which takes more time and can cause more side effects.

These findings introduce a new type of MRI agent that combines diagnosis and treatment on one platform. This could make cancer care faster, safer, and more precise.

"The unique structure of these molecules gives them capabilities that traditional drugs simply do not have," the researchers noted.

The work was supported by the core technology platforms at NYU Abu Dhabi.