Navigation Links
Suspicions confirmed: Brain tumors in children have a common cause
Date:7/9/2013

ered these mutations. In a whole-genome analysis of 96 tumors we have now discovered activating defects in three other genes involved in the MAPK signaling pathway that have not previously been described in astrocytoma."

"Aside from MAPK mutations, we do not find any other frequent mutations that could promote cancer growth in the tumors. This is a very clear indication that overactive MAPK signals are necessary for a pilocytic astrocytoma to develop," says study director Stefan Pfister. The disease thus is a prototype for rare cancers that are based on defects in a single biological signaling process.

In total, the genomes of pilocytic astrocytomas contain far fewer mutations than are found, for example, in medulloblastomas, a much more malignant pediatric brain tumor. This finding is in accordance with the more benign growth behavior of astrocytomas. The number of mutations increases with the age of the affected individuals.

About one half of pilocytic astrocytomas develop in the cerebellum, the other 50 percent in various other brain regions. Cerebellar astrocytomas are genetically even more homogenous than other cases of the disease: In 48 out of 49 cases that were studied, the researchers found fusions between the BRAF gene, a central component of the MAPK signaling pathway, and various other fusion partners.

"The most important conclusion from our results," says study director Stefan Pfister, "is that targeted agents for all pilocytic astrocytomas are potentially available to block an overactive MAPK signaling cascade at various points. We might thus in the future be able to also help children whose tumors are difficult to access by surgery."


'/>"/>

Contact: Dr. Sibylle Kohlstädt
s.kohlstaedt@dkfz.de
Helmholtz Association of German Research Centres
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Study Suggests Vaccine May Help Kids With Brain Cancer
2. Epilepsy Leads to More Brain Abnormalities Over Time
3. UCLA Brain Injury Research Center gets NCAA funding for research on sports concussions
4. Why is traumatic brain injury increasing among the elderly?
5. Brain Falters Near End of Life, but Games, Puzzles Might Slow Decline
6. Dental X-Rays May Be Linked to Benign Brain Tumors
7. Nonsurgical Method to Measure Brain Pressure Shows Promise
8. Researchers Map Brain Regions Linked to Intelligence
9. Football-related catastrophic brain injuries on the rise
10. Brain Tumor Vaccine Shows Promise in Early Trial
11. Brain Surgery Might Ease Tough-to-Treat OCD
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... 2014 The American Society for Radiation Oncology (ASTRO) ... Postoperative Radiation Therapy for Endometrial Cancer: An ASTRO ... radiation therapy in the treatment of endometrial cancer. ... May-June 2014 issue of Practical Radiation Oncology ... ASTRO. The full-length guideline is available as an ...
(Date:4/23/2014)... BUFFALO, N.Y. A novel compound that targets an ... host of cocaine addiction behaviors, including relapse behavior, a ... research provides strong evidence that this may be a ... no effective medications exist., The UB research was published ... last week. , In the study, the compound, RO5263397, ...
(Date:4/23/2014)... that can rapidly screen a large cell population ... that population has been seriously lacking," said Virginia ... Royal Society of Chemistry journal Chemical Science ... coworkers have developed a novel technique that detects ... Sci. , 2014, DOI: 10.1039/C4SC00578C, http://pubs.rsc.org/en/content/articlelanding/2014/sc/c4sc00578c#!divAbstract ). ...
(Date:4/23/2014)... a country as wealthy as the United States, it may ... not have access to adequate food due to lack of ... , Recent research at the University of Illinois using data ... that the seniors who are dealing with hunger are also ... 8.35 percent of Americans over age 60 faced the threat ...
(Date:4/23/2014)... Physical Activity on Mobility Limitation in Old Age , ... of mobility limitation in old age, whereas leisure-time physical ... study which followed up 5,200 public sector employees for ... Research Center in Finland and the Finnish Institute of ... wears the body and lasts for several hours a ...
Breaking Medicine News(10 mins):Health News:ASTRO issues guideline on the role of postoperative radiation therapy for endometrial cancer 2Health News:ASTRO issues guideline on the role of postoperative radiation therapy for endometrial cancer 3Health News:Novel compound halts cocaine addiction and relapse behaviors 2Health News:Following a protein's travel inside cells is key to improving patient monitoring, drug development 2Health News:More Americans in their golden years are going hungry 2Health News:Midlife occupational and leisure-time physical activity limits mobility in old age 2
... older Americans offer only meager savings, particularly in urban ... charge seniors a modest fee, usually $12 to $25 ... minimal for many of the most popular name-brand drugs. ... -- Washington, Chicago and Seattle -- see savings of ...
... that one of the substance-propolis, a resinous product ... decay. Researchers at the University of Campinas, Brazil, ... Propolis is a potent inhibitor of glucosyltransferase (Gtf) ... promote the binding of cariogenic bacteria to teeth, ...
... decided to conduct tests for any Indian doctor having graduated ... ensure a higher standards amongst doctors, the government has made ... sources said today. , The ... specify that students who want to enrol in MBBS course ...
... estrogen, the new generations of birth control pills double the ... the newest pills are no safer than the older versions ... pills may be more dangerous than the second-generation ones. ... mix of high doses of estrogen and one of two ...
... drug treatment are not getting it. The survey on Drug ... problems with drugs and alcohol. Only about 122,000 of them ... are only the tip of the (drug abuse) iceberg," says ... non-profit drug-treatment program. The study shows that about 4.7 million ...
... for patent infringement by the US based AAI Pharma Inc for ... 180 days exclusivity to sell the drug's 40 mg dosage form ... and 20 mg dosage forms. DRL expects this to be a ... allows the patent holder to file a lawsuit to challenge the ...
Cached Medicine News:
(Date:1/15/2014)... , Jan. 15, 2014 Reportlinker.com ... is available in its catalogue: ... – Worldwide Analysis http://www.reportlinker.com/p01957812/Insulin-Pump-Market--Forecast-–-Worldwide-Analysis.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Medical_Equipment_and_Supply ... Analysis Insulin Pumps ...
(Date:1/15/2014)... 15, 2014 Reportlinker.com announces that ... available in its catalogue: ... for Advanced Drug Delivery Systems -- ... http://www.reportlinker.com/p01941928/Global-Markets-and-Technologies-for-Advanced-Drug-Delivery-Systems----Focus-on-Routes-of-Administration.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Drug_Delivery_Technology ...
(Date:1/14/2014)... (Nasdaq: LMNX ) today announced that it expects ... Monday, February 3, 2014. A press release announcing the results ... (Logo: http://photos.prnewswire.com/prnh/20100104/LUMINEXLOGO ) Management will ... financial results for the fourth quarter and twelve months ended ...
Breaking Medicine Technology:Insulin Pump Market & Forecast - Worldwide Analysis 2Insulin Pump Market & Forecast - Worldwide Analysis 3Insulin Pump Market & Forecast - Worldwide Analysis 4Insulin Pump Market & Forecast - Worldwide Analysis 5Insulin Pump Market & Forecast - Worldwide Analysis 6Insulin Pump Market & Forecast - Worldwide Analysis 7Insulin Pump Market & Forecast - Worldwide Analysis 8Insulin Pump Market & Forecast - Worldwide Analysis 9Insulin Pump Market & Forecast - Worldwide Analysis 10Insulin Pump Market & Forecast - Worldwide Analysis 11Insulin Pump Market & Forecast - Worldwide Analysis 12Insulin Pump Market & Forecast - Worldwide Analysis 13Insulin Pump Market & Forecast - Worldwide Analysis 14Insulin Pump Market & Forecast - Worldwide Analysis 15Insulin Pump Market & Forecast - Worldwide Analysis 16Insulin Pump Market & Forecast - Worldwide Analysis 17Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 2Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 3Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 4Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 5Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 6Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 7Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 8Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 9Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 10Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 11Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 12Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 13Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 14Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 15Global Markets and Technologies for Advanced Drug Delivery Systems -- Focus on Routes of Administration 16Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 2Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 3
... Scotland, and BEDMINSTER, N.J., June 22, 2011 ... Kyowa Hakko Kirin Co. Ltd., and an international specialty ... from the U.S. Food and Drug Administration (FDA) for ... moderate to severe pain associated with chronic anal fissures. ...
... Ambrx Inc. today announced that Ho Cho, Ph.D., the ... the company,s antibody drug conjugate (ADC) programs at five ... from recent xenograft studies comparing Ambrx ADCs with those ... has been clinically validated as safe and efficacious for ...
Cached Medicine Technology:ProStrakan Receives FDA Approval for Rectiv™ for the Treatment of Moderate to Severe Pain Associated With Chronic Anal Fissures 2ProStrakan Receives FDA Approval for Rectiv™ for the Treatment of Moderate to Severe Pain Associated With Chronic Anal Fissures 3Ambrx to Present Data from Antibody Drug Conjugate Program at Upcoming Scientific Conferences 2
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
Medicine Products: