Featured Research

from universities, journals, and other organizations

Way to overcome radiation resistance in leukemia discovered

Date:
September 30, 2010
Source:
Children's Hospital Los Angeles
Summary:
Radiation resistance in leukemia can be overcome by selectively attacking a molecular target known as SYK tyrosine kinase, according to new research.

This is Fatih Uckun, M.D., Ph.D., of Childrens Hospital Los Angeles.
Credit: Courtesy of Dr Uckun

A team of researchers lead by Fatih M. Uckun, MD, PhD, of The Saban Research Institute of Childrens Hospital Los Angeles has determined that radiation resistance in leukemia can be overcome by selectively attacking a molecular target known as SYK tyrosine kinase.

Related Articles


B-lineage acute lymphoblastic leukemia (ALL) is the most common cancer occurring in children and adolescents. Despite having received intensive chemotherapy, some patients have recurring disease, known as relapse. For these individuals, the prospect of long-term survival is poor.

The standard approach to treating relapsed patients has been additional chemotherapy to achieve a second remission followed by very intensive treatment that could include "supralethal" chemotherapy, total-body irradiation (TBI), and hematopoietic stem cell transplantation. However, radiation resistance of leukemia cells hampers the success of these rigorous therapeutic approaches and results in poor survival.

"We knew that we could kill radiation-resistant leukemia cells if we only knew what made them so resistant. So we set out to determine the mechanism," said Dr. Uckun, who is also professor of Research Pediatrics at the Keck School of Medicine at the University of Southern California. "Once we determined the mechanism, the next step was obvious -- to rationally design a drug that would take out that specific target."

Uckun's research team has now provided the first proof-of-principle that radiation resistance of an aggressive leukemia can indeed be overcome using this rationally-designed specific drug directed against the resistance machinery of leukemia cells.

"Radiation therapy was much more effective against leukemia in mice when it was combined with this new drug candidate that we named C-61," said Dr. Uckun.

The results of the study will be published in the October 2010 issue of Radiation Research, the official journal of the Radiation Research Society.


Story Source:

The above story is based on materials provided by Children's Hospital Los Angeles. Note: Materials may be edited for content and length.


Journal Reference:

  1. F. M. Uckun, I. Dibirdik, S. Qaz. ugmentation of the Antileukemia Potency of Total-Body Irradiation (TBI) by a Novel P-site Inhibitor of Spleen Tyrosine Kinase (SYK). Radiation Research, October 2010, Vol. 174, No. 4, pp. 526-531

Cite This Page:

Children's Hospital Los Angeles. "Way to overcome radiation resistance in leukemia discovered." ScienceDaily. ScienceDaily, 30 September 2010. <www.sciencedaily.com/releases/2010/09/100930101556.htm>.
Children's Hospital Los Angeles. (2010, September 30). Way to overcome radiation resistance in leukemia discovered. ScienceDaily. Retrieved February 28, 2015 from www.sciencedaily.com/releases/2010/09/100930101556.htm
Children's Hospital Los Angeles. "Way to overcome radiation resistance in leukemia discovered." ScienceDaily. www.sciencedaily.com/releases/2010/09/100930101556.htm (accessed February 28, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, February 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Could a $34 Smartphone Device Improve HIV Diagnosis in Africa?

Could a $34 Smartphone Device Improve HIV Diagnosis in Africa?

Reuters - Innovations Video Online (Feb. 27, 2015) A dongle that plugs into a Smartphone mimics a lab-based blood test for HIV and syphilis and can detect the diseases in 15 minutes, say researchers. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Doctor Says Head Transplants Possible Within Two Years

Doctor Says Head Transplants Possible Within Two Years

Buzz60 (Feb. 27, 2015) An Italian doctor is saying he could stick someone&apos;s head onto someone else&apos;s body. Patrick Jones (@Patrick_E_Jones) reports. Video provided by Buzz60
Powered by NewsLook.com
How Your Dentist Could Help Screen You For Diabetes

How Your Dentist Could Help Screen You For Diabetes

Newsy (Feb. 27, 2015) A new study from researchers at New York University suggests dentists could soon use blood samples taken from patients&apos; mouths to test for diabetes. Video provided by Newsy
Powered by NewsLook.com
The Best Tips to Makeover Your Health

The Best Tips to Makeover Your Health

Buzz60 (Feb. 27, 2015) If you&apos;re looking to boost your health this season, there are a few quick and easy steps to prompt you for success. Krystin Goodwin (@Krystingoodwin) has the best tips to give your health a makeover this spring! Video provided by Buzz60
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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