News / Health

Spray Detects Hard-to-Find Tumors

Fluorescent dye glows when it finds evidence of cancer

A fluorescent spray, now in development, detects early-stage cancer in mice.
A fluorescent spray, now in development, detects early-stage cancer in mice.

Multimedia

Audio
Jessica Berman

Surgeons may soon have a new tool to help locate early-stage cancerous growths; a spray that turns fluorescent green when it comes into contact with tumors.  

The spray is clear, but contains a non-toxic dye that almost immediately glows bright green when it reacts with enzymes produced by cancerous tumors.

The fluorescent spray was developed by Hisataka Kobayashi, a researcher at the U.S. National Cancer Institute near Washington D.C.

The problem with many cancers, according to Kobayashi, is that their early-stage tumors are too small to be seen with the naked eye.

“The tiny, tiny cancer is very hard to see and then very hard to handle," says Kobayashi, "and very hard to see whether it’s removed from the body or not.”

Current attempts to image tumors - if they are even detectable - can take hours to days.

Kobayashi and colleagues conducted experiments with mice in which human ovarian tumors had been induced. Within a minute of spraying the cancerous tissue inside the animals’ open abdominal cavities, researchers easily spotted the small tumors, which glowed bright green.

Kobayashi says the spray can help surgeons detect even the tiniest tumors which normally would be missed, increasing the chances for successful cancer surgery and making a recurrence of the cancer less likely.

Kobayashi says he expects the spray to be approved for human use by U.S. regulators within two to three years.  His study describing the fluorescent cancer spray is published in the journal Science Translational Medicine.

You May Like

Video VOA Reporter Tours Devastated Peshawar School

Islamist militants wearing military uniforms and strapped with explosives attacked a military run school Tuesday in the northwestern Pakistani city of Peshawar. At least 141 people were killed in the horrific attack, most of them young students. More

Video Sudan School Becomes Target of Aerial Attacks

Dropout rate at an all-time high in South Kordofan state because many schools have been destroyed during 3-year civil war More

Tennessee Songbirds Fly Coop Long Before Tornadoes Arrive

Researchers say birds apparently alerted to danger by sounds at frequencies below range of human hearing More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
US: Response to Sony Hack Will Be Proportionali
X
Aru Pande
December 19, 2014 1:45 AM
The White House says President Barack Obama considers the cyberattack on Sony Corp. a serious national security matter and that the U.S. will counter with an "appropriate response." VOA correspondent Aru Pande reports.
Video

Video US: Response to Sony Hack Will Be Proportional

The White House says President Barack Obama considers the cyberattack on Sony Corp. a serious national security matter and that the U.S. will counter with an "appropriate response." VOA correspondent Aru Pande reports.
Video

Video Sudan School Becomes Target of Aerial Attacks

The school dropout rate is at an all-time high in Sudan's South Kordofan state because many schools have been destroyed during the three-year civil war between the government and SPLA-N rebel forces. Adam Bailes visited Sudan's Nuba Mountains' region and reports many children are simply too scared to go to school
Video

Video Nigerians Fleeing Boko Haram Languish in Camp Near Capital

In its five-year effort to impose Islamic law in northeastern Nigeria, the Boko Haram extremist group has killed thousands of people and forced hundreds of thousands to flee. Some of those who ran for their lives now live in squalor on the edges of the capital, Abuja. Chris Stein reports for VOA.
Video

Video Putin Says Russian Economy Will Emerge Stronger

Russian President Vladimir Putin has said his country's sinking economy will not only recover but also become stronger, despite falling oil prices and Western sanctions over Ukraine. VOA's Daniel Schearf reports.
Video

Video Detained Turkish Journalists Follow Teachings of US-Based Preacher

The Turkish government’s jailing of critical journalists has sparked international condemnation and is being seen as an effort to undermine the followers of an ailing Turkish preacher based in the United States. VOA religion reporter Jerome Socolovsky has more.
Video

Video ‘Anti-Islamization’ Marches Increase Tensions In Germany

Anti-immigrant rallies in Germany have been building in recent weeks, peaking Monday night in the city of Dresden where tens of thousands of people turned out to demonstrate against what they call the ‘Islamization’ of the West. Germany has offered asylum to more Syrian refugees than any other country, and this appears to have set off the protests. Henry Ridgwell reports from London.
Video

Video Aceh Rebuilt Decade After Tsunami, But Scars Remain

On December 26, 2004 there was an earthquake in the Indian Ocean so powerful it caused the Earth’s axis to wobble a few centimeters. Onshore on the island of Sumatra, the resulting tsunami was devastating. A decade later, VOA Correspondent Steve Herman reports from Banda Aceh, Indonesia, where although there is little remaining evidence of the physical devastation, the psychological scars among survivors remain.
Video

Video Refugees Living in Kenya Long for Peace in the Home Countries

Kenya is host to numerous refugees seeking safe haven from conflict. Immigrants from Somalia face challenges in their new lives in Kenya. Ahead of International Migrants Day (December 18) Lenny Ruvaga has more for VOA News from the Kenyan capital.

All About America

AppleAndroid