Navigation Links
Team finds new way to image brain tumors and predict recurrence
Date:1/24/2012

After people with low-grade glioma, a type of brain cancer, undergo neurosurgery to remove the tumors, they face variable odds of survival depending largely on how rapidly the cancer recurs. Even though their doctors monitor the tumor closely with sophisticated imaging, it is difficult to determine with certainty whether cancer has returned in a more malignant state that requires aggressive treatment.

Now a team from the University of California, San Francisco (UCSF) has developed methods to reveal a molecular marker in tissue samples from brain tumors that has been linked to better survival odds. Monitoring this marker in the brain could provide doctors with a better way to follow their patients after surgery.

Though this technique has not yet been optimized for routine use in the clinic, it may help doctors better gauge cancer recurrence, make follow-up treatment decisions and assess how a patient responds to recommended treatments particularly in patients with low-grade forms of the cancer.

"If a tumor transforms to a higher grade, then it is important to use more aggressive treatments," said Sarah Nelson, PhD, the Margaret Hart Surbeck Distinguished Professor in Advanced Imaging at UCSF and a professor in the Department of Radiology and Biomedical Imaging.

The research group at UCSF used MRI methods to obtain data from image-guided tissue samples from more than 50 patients with glioma that demonstrated the presence of a chemical called 2-HG, linked to mutations in a gene known as IDH1. Studies in the last two years have shown these mutations are more common in low-grade tumors and are associated with longer survival. More than 70 percent of patients with low-grade gliomas have mutations to the IDH1 genes in their cancer cells.

Published this month in the journal Science Translational Medicine, the work required the use of specialized methods and equipment that was sensitive enough to detect the 2-HG in small tissue samples. A companion paper from a group at Harvard was published in the same issue and showed preliminary results indicating that 2-HG could be detected non-invasively from relatively large regions of tumor in two patients with IDH1 mutations.

Moving forward, the techniques used must be refined so that standard hospital MRI scanners can image the presence of 2-HG. "Developing methods to obtain images in a clinical setting is an engineering challenge now," Nelson said.

The work was a collaboration among several departments at UCSF, including Radiology and Biomedical Imaging; Bioengineering and Therapeutic Sciences; Pathology; and Neurological Surgery. The lead authors on the paper were Llewellyn Jalbert, a graduate student in the Bioengineering PhD program; and Adam Elkhaled, a staff researcher in the Department of Radiology and Biomedical Imaging.

It was funded by a $1.5 million-per-year National Cancer Institute grant called the Specialized Program for Research Excellence. Now in its 10th year of funding, the grant aims to translate basic laboratory and clinical discoveries into optimal ways of delivering treatment and monitoring a patient's progress.

The article, "Magnetic Resonance of 2-Hydroxyglutarate in IDH1-Mutated Low-Grade Gliomas" by Adam Elkhaled, Llewellyn E. Jalbert, Joanna J. Phillips, Hikari A. I. Yoshihara, Rupa Parvataneni, Radhika Srinivasan, Gabriela Bourne, Mitchel S. Berger, Susan M. Chang, Soonmee Cha and Sarah J. Nelson appeared in the Jan. 11, 2012 issue of the journal Science Translational Medicine.


'/>"/>

Contact: Jason Socrates Bardi
jason.bardi@ucsf.edu
415-502-6397
University of California - San Francisco
Source:Eurekalert  

Related biology news :

1. CWRU study finds the love of a dog or cat helps women cope with HIV/AIDS
2. BU study finds new genetic loci associated with menopause onset
3. NASA finds 2011 ninth-warmest year on record
4. Mysterious flotsam in Gulf of Mexico came from Deepwater Horizon rig, WHOI study finds
5. Team finds a better way to gauge the climate costs of land use changes
6. Study finds age-related effects in MS may be reversible
7. Study finds air pollution linked to diabetes and hypertension in African-American women
8. MU researchers photoacoustic device finds cancer cells before they become tumors
9. Wayne State study finds soybean compounds enhances effects of cancer radiotherapy
10. Close family ties keep microbial cheaters in check, study finds
11. Study finds increasing atmospheric concentrations of new flame retardants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Team finds new way to image brain tumors and predict recurrence
(Date:3/9/2016)... YORK , March 9, 2016 This ... and future states of the RNA Sequencing (RNA Seq) ... segments such as instruments, tools and reagents, data analysis, ... Analyze various segments of the RNA-Sequencing market such as ... services Identify the main factors affecting each segment and ...
(Date:3/8/2016)... , March 8, 2016   Valencell ... technology, today announced it has secured $11M in ... GII Tech, a new venture fund being launched ... additional participation from existing investors TDF Ventures and ... funds to continue its triple-digit growth and accelerate ...
(Date:3/3/2016)... and DE SOTO, Kansas ... U.S.-based Stroke Detection Plus® to offer Oncimmune,s Early ... assessment and early detection of lung cancer ... employers, unions and individuals. --> Early CDT®-Lung ... and individuals. --> Oncimmune, a leader in ...
Breaking Biology News(10 mins):
(Date:5/19/2016)... 19, 2016 - I dati ... durante il 52 ° Congresso ... - Le conclusioni dello studio indicano un ... trattati, di cui il 90% presenta una d urata ... più. Il settantadue per cento dei pazienti ha riscontrato un ...
(Date:5/18/2016)... The Biotech industry continues to face a wave ... no opportunities ahead. Today, ActiveWallSt.com has on its list these ... Seattle Genetics Inc. (NASDAQ: SGEN ), Chiasma Inc. ... OPHT ). Sign up now to receive our free ... Threshold Pharmaceuticals Inc.,s shares gained 0.68%, closing Tuesday,s ...
(Date:5/18/2016)... IN (PRWEB) , ... May 18, 2016 , ... The ... and is now celebrating its dream of reaching a total of $1 million in ... scholarships awarded to 10 high school graduates from across the nation has helped bring ...
(Date:5/17/2016)... ... May 17, 2016 , ... ... animal waste reduction applications, announced today it will be showcasing ManureMagicâ„¢ at booth ... ManureMagicâ„¢ was featured in the Wall Street Journal last year and more recently ...
Breaking Biology Technology: