HOME >> BIOLOGY >> NEWS
New insights into how Huntington's disease attacks the brain

Scientific theory holds that Huntington's disease (HD) is caused by a mutant protein that arises within brain cells and kills them, triggering the genetic neurological disorder. Now a new UCLA Neuropsychiatric Institute study reveals the first strong evidence that the mutant protein also elicits toxic interactions from neighboring cells to provoke the fatal brain disorder. The May 5 edition of Neuron reports the findings.

"This is really important because most current disease models and drug development efforts rely on the assumption that Huntington's disease arises from within the target brain cells," explained Dr. William Yang, assistant professor at the UCLA Neuropsychiatric Institute and a member of the Brain Research Institute.

"Our model is the first to show that mutant HD proteins exert their influence on brain cells located near the target cells," he said. "These neighboring cells then interact with the target cells to spark disease."

To pinpoint the disorder's cellular origin, UCLA researchers developed two sets of mice with the human HD gene mutation. The first group was engineered to trigger production of the mutant HD protein throughout the brain. The second set of mice produced the mutant HD protein only in the target brain cells.

The scientists reasoned that if the mutant protein triggered the disease only from within the target cells, the second set of mice would display significant signs of the disorder. If HD required toxic interactions among cells throughout the brain, however, these same mice would show little or no signs of the disorder.

When comparing the two groups, the UCLA team discovered that the first set of mice demonstrated problems with motor control and showed visible degeneration of the target brain cells. In contrast, the second set of mice showed little signs of the disease.

"This is the first direct genetic evidence to demonstrate that abnormal interactions between cells
'"/>

Contact: Elaine Schmidt
eschmidt@mednet.ucla.edu
310-794-2272
University of California - Los Angeles
4-May-2005


Page: 1 2

Related biology news :

1. Scientists gain important insights into acute promyelocytic leukemia
2. Variant CJD -- Prion amplification breakthrough brings new insights and hopes for a blood test
3. Largest synthetic gene ever built offers insights into anti-malarial drug resistance
4. New insights into the neural basis of anxiety
5. From ink to optics, study of particle mixtures yields fundamental insights
6. Understanding the global carbon budget -- Woods Hole Research Center expert provides insights
7. A rainbow of methods promises insights into biological processes and diseases
8. New imaging approach promises insights into multiple sclerosis
9. Mutant mouse provides insights into breast cancer
10. From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea
11. Research yields new insights into the cause of diabetes

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/29/2017)... -- higi, the health IT company that operates the largest ... , today announced a Series B investment from BlueCross ... new investment and acquisition accelerates higi,s strategy to create ... health activities through the collection and workflow integration of ... and secures data today on behalf of over 36 ...
(Date:3/27/2017)... 27, 2017  Catholic Health Services (CHS) has ... Society (HIMSS) Analytics for achieving Stage 6 on ... . In addition, CHS previously earned a place ... an electronic medical record (EMR). "HIMSS ... of EMR usage in an outpatient setting.  This ...
(Date:3/24/2017)... -- Research and Markets has announced the addition of ... - Industry Forecast to 2025" report to their offering. ... The Global Biometric Vehicle ... around 15.1% over the next decade to reach approximately $1,580 million ... estimates and forecasts for all the given segments on global as ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... 2017 , ... Personal eye wash is a basic first aid supply for any work environment, ... eye do you rinse first if a dangerous substance enters both eyes? It’s one less ... with its unique dual eye piece. , “Whether its dirt and debris, or an acid ...
(Date:10/11/2017)... BioMarketing, a leading provider of patient support solutions, has announced ... network, which will launch this week. The VMS CNEs will ... to enhance the patient care experience by delivering peer-to-peer education ... professionals to help women who have been diagnosed and are ... ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... and pregnancy rates in frozen and fresh in vitro fertilization (IVF) ... maternal age to IVF success. , After comparing the results from the fresh ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that give it ... Nanoparticle), a technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). ...
Breaking Biology Technology:
Cached News: