New Nanoparticles Help Doctors Find and Destroy Brain Cancer Cells

Topic: Health

Researchers from Australia and China have created tiny nanoparticles that can help doctors find and destroy brain cancer cells. These nanoparticles can light up the tumor during surgery and then kill any remaining cancer cells after the operation.

Glioblastoma is a type of brain cancer that is very hard to treat. One reason for this is that cancer cells spread into nearby healthy brain tissue, making it difficult for surgeons to remove all of the tumor. The blood-brain barrier also makes it hard for medicines and radiation to reach the tumor. As a result, only about 7% of people with glioblastoma survive for five years.

A team of researchers from the University of Technology Sydney (UTS) in Australia and several universities in China have developed a new way to tackle this problem. They created tiny nanoparticles that can do two jobs: help doctors see the tumor during surgery, and then kill any remaining cancer cells after the operation.

These nanoparticles are made up of an extremely thin sheet covered with individual atoms. This allows them to switch between their two roles. During surgery, they glow under a special light, making it easier for surgeons to see the tumor. After the operation, they can be activated again and use the same light to kill any remaining cancer cells.

The researchers tested these nanoparticles in mouse models of glioblastoma. They found that the treatment was very effective at reducing the number of cancer cells left behind after surgery. All of the mice that received the treatment were still alive 60 days later, compared to only 42 days for those who didn't receive the treatment.

Why It Matters

This new technology could help doctors save more lives by making it easier to find and destroy brain cancer cells. It's an important step towards reducing the number of people who die from glioblastoma each year.

Key Facts

• Glioblastoma is a type of brain cancer that is very hard to treat, with only about 7% of patients surviving for five years.
• Researchers from Australia and China have developed tiny nanoparticles that can help doctors see the tumor during surgery and kill any remaining cancer cells after the operation.
• The nanoparticles are made up of an extremely thin sheet covered with individual atoms, allowing them to switch between their two roles.
• The researchers tested these nanoparticles in mouse models of glioblastoma and found that they were very effective at reducing the number of cancer cells left behind after surgery.
• All of the mice that received the treatment were still alive 60 days later, compared to only 42 days for those who didn't receive the treatment.

Key Terms

Glioblastoma

A type of brain cancer that is very hard to treat

Blood-brain barrier

A protective layer around the brain that makes it hard for medicines and radiation to reach the tumor

Nanoparticles

Tiny particles made up of individual atoms or molecules

Implications

This new technology could help doctors save more lives by making it easier to find and destroy brain cancer cells. It's an important step towards reducing the number of people who die from glioblastoma each year.