Featured Research

from universities, journals, and other organizations

New 'Longboat Delivery System' Could Mean More Potent Anti-cancer Drugs

Date:
July 5, 2007
Source:
American Chemical Society
Summary:
Scientists are reporting development of carbon nanotubes as a "longboat delivery system" that shows potential for addressing shortcomings that have hindered development of more generally applicable platinum-based anticancer drugs. These include analogues of the widely used and extremely potent drugs cisplatin, carboplatin, and oxaliplatin.

Scientists are reporting development of carbon nanotubes as a “longboat delivery system” that shows potential for addressing shortcomings that have hindered development of more generally applicable platinum-based anticancer drugs. These include analogues of the widely used and extremely potent drugs cisplatin, carboplatin, and oxaliplatin. The report is scheduled for the July 11 issue of the Journal of the American Chemical Society, a weekly publication.

The Massachusetts Institute of Technology’s Stephen J. Lippard and Stanford University’s Hongjie Dai and colleagues note that efforts to produce such molecules have been hindered because the required form of platinum loses activity in the body and becomes ineffective before reaching the tumor.

Their solution was to develop a carbon nanotube delivery system, ultimately for shuttling platinum compounds safely through the body’s biochemical obstacle course and into the tumor. Once inside the tumor cell, the compounds convert from an inactive form into an active anti-cancer drug.

The chemistry involves attaching platinum compounds to single wall carbon nanotubes (SWNTs), one-atom thick sheets of graphite rolled up into a cylinder with a diameter about 50,000 times smaller than the width of a human hair. The SWNTs act as efficient transporters for the platinum warhead, carrying it to the tumor cell and then releasing the platinum as an active drug.

In one experiment with cultured cells, the SWNTs produced platinum levels inside the cells 6-8 times higher than those for the platinum unit administered in the traditional way. The longboat SWNTs have the potential to carry other passengers to and into the cancer cell, as demonstrated by the co- delivery of platinum and a fluorescent dye to the cancer cell, which in the future will include tumor-targeting components.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "New 'Longboat Delivery System' Could Mean More Potent Anti-cancer Drugs." ScienceDaily. ScienceDaily, 5 July 2007. <www.sciencedaily.com/releases/2007/07/070702150921.htm>.
American Chemical Society. (2007, July 5). New 'Longboat Delivery System' Could Mean More Potent Anti-cancer Drugs. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/2007/07/070702150921.htm
American Chemical Society. "New 'Longboat Delivery System' Could Mean More Potent Anti-cancer Drugs." ScienceDaily. www.sciencedaily.com/releases/2007/07/070702150921.htm (accessed April 19, 2014).

Share This



More Health & Medicine News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

'Holy Grail' Of Weight Loss? New Find Could Be It

'Holy Grail' Of Weight Loss? New Find Could Be It

Newsy (Apr. 18, 2014) In a potential breakthrough for future obesity treatments, scientists have used MRI scans to pinpoint brown fat in a living adult for the first time. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com
Scientists Create Stem Cells From Adult Skin Cells

Scientists Create Stem Cells From Adult Skin Cells

Newsy (Apr. 17, 2014) The breakthrough could mean a cure for some serious diseases and even the possibility of human cloning, but it's all still a way off. Video provided by Newsy
Powered by NewsLook.com
Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins