News / Health

Virus Hitches Ride in Blood to Kill Cancer Cells

A recent study finds a cancer-killing virus can piggy-back on blood cells to avoid the body's immune system and reach the cancer cells.A recent study finds a cancer-killing virus can piggy-back on blood cells to avoid the body's immune system and reach the cancer cells.
x
A recent study finds a cancer-killing virus can piggy-back on blood cells to avoid the body's immune system and reach the cancer cells.
A recent study finds a cancer-killing virus can piggy-back on blood cells to avoid the body's immune system and reach the cancer cells.
Jessica Berman
A new study finds a virus can hitchhike its way to kill cancerous tumor cells without being detected and destroyed by the body's immune system, a finding that suggests cancer might one day be treated with the aid of viruses.

Reovirus is a fairly innocuous pathogen that usually does not cause serious illness in people, but researchers at the University of Leeds and The Institute of Cancer Research in Britain have shown it could one day play a very important role in helping treat cancer.

Alan Melcher, a professor of clinical oncology and bio-therapy at the University of Leeds, looked at tissue removed from 10 patients, with advanced bowel cancer, who had been injected with reovirus just prior to surgery.

"When we took the tumor out of the patient, it was full of virus in nine out of the 10 patients," Melcher says, "whereas the normal liver, which was also getting removed, had very little virus in it, if any."

In other words, reoviruses can kill cancer cells without harming healthy tissue, so the patients would have fewer side effects from the treatment.

But there had been concern that delivering the virus directly into cancerous tumors would be too difficult. So, in what's known as a proof-of-concept experiment, the researchers simply injected reovirus into the patients' bloodstream.  
 
Melcher says the reovirus appears to piggy-back on blood cells to avoid the body's immune system and reach the cancer cells.

"We were also able to show that when you do inject virus into the blood, even though there are antibodies against the virus in the blood, the virus is able to hide from those neutralizing antibodies and to get carried essentially by blood cells as a means of potentially accessing the tumor and doing its stuff."

Other cancer trials involving reoviruses are being conducted, but this is the first time the pathogen has been shown to safely and effectively hone in on tumors through the blood.

You May Like

Ukraine Purges Interior Ministry Leadership With Pro-Russian Ties

Interior Minister Avakov says 91 people 'in positions of leadership' have been fired, including 8 generals found to have links to past pro-Moscow governments More

US Airlines Point to Additional Problems of any Ebola Travel Ban

Airline officials note that even under travel ban, they may not be able to determine where passenger set out from, as there are no direct flights from Liberia, Guinea or Sierra Leone More

Nigerian President to Seek Another Term

Goodluck Jonathan has faced intense criticism for failing to stop Boko Haram militants More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Talks to Resume on Winter Gas for Ukrainei
X
Al Pessin
October 25, 2014 4:21 PM
Ukrainian and Russian officials will meet again next week in an effort to settle their dispute over natural gas supplies that threatens to leave Ukraine short of heating fuel for the coming winter. VOA’s Al Pessin reports from London the dispute is complex, and has both economic and geopolitical dimensions.
Video

Video Talks to Resume on Winter Gas for Ukraine

Ukrainian and Russian officials will meet again next week in an effort to settle their dispute over natural gas supplies that threatens to leave Ukraine short of heating fuel for the coming winter. VOA’s Al Pessin reports from London the dispute is complex, and has both economic and geopolitical dimensions.
Video

Video Smugglers Offer Cheap Passage From Turkey to Syria

Smugglers in Turkey offer a relatively cheap passage across the border into Syria. Ankara has stepped up efforts to stem the flow of foreign fighters who want to join Islamic State militants fighting for control of the Syrian border city of Kobani. But porous borders and border guards who can be bribed make illegal border crossings quite easy. Zlatica Hoke has more.
Video

Video China Political Meeting Seeks to Improve Rule of Law

China’s communist leaders will host a top level political meeting this week, called the Fourth Plenum, and for the first time in the party’s history, rule of law will be a key item on the agenda. Analysts and Chinese media reports say the meetings could see the approval of long-awaited measures aimed at giving courts more independence and include steps to enhance an already aggressive and high-reaching anti-corruption drive. VOA’s Bill Ide has more from Beijing.
Video

Video After Decades of Pressure, Luxembourg Drops Bank Secrecy Rules

European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video Kobani Refugees Welcome, Turkey Criticizes, US Airdrop

Residents of Kobani in northern Syria have welcomed the airdrop of weapons, ammunition and medicine to Kurdish militia who are resisting the seizure of their city by Islamic State militants. The Turkish government, however, has criticized the operation. VOA’s Scott Bobb reports from southeastern Turkey, across the border from Kobani.
Video

Video US ‘Death Cafes’ Put Focus on the Finale

In contemporary America, death usually is a topic to be avoided. But the growing “death café” movement encourages people to discuss their fears and desires about their final moments. VOA’s Jerome Socolovsky reports.
Video

Video Ebola Orphanage Opens in Sierra Leone

Sierra Leone's first Ebola orphanage has opened in the Kailahun district. Hundreds of children orphaned since the beginning of the Ebola outbreak face stigma and rejection with nobody to care for them. Adam Bailes reports for VOA about a new interim care center that's aimed at helping the growing number of children affected by Ebola.

All About America

AppleAndroid