Featured Research

from universities, journals, and other organizations

A peptide to protect brain function

Date:
June 13, 2013
Source:
American Friends of Tel Aviv University
Summary:
Medical researchers have developed a new peptide, called NAP or Davunetide, that has the capacity to both protect and restore critical cell functions in the brain. Her findings indicate that NAP could be an effective tool in combating effects of neurodegenerative diseases such as Alzheimer's, ALS, and Parkinson's.

A structure called "the microtubule network" is a crucial part of our nervous system. It acts as a transportation system within nerve cells, carrying essential proteins and enabling cell-to-cell communications. But in neurodegenerative diseases like Alzheimer's, ALS, and Parkinson's, this network breaks down, hindering motor abilities and cognitive function.

Now Prof. Illana Gozes of Tel Aviv University's Sackler Faculty of Medicine has developed a new peptide in her lab, called NAP or Davunetide, that has the capacity to both protect and restore microtubule function. The peptide is a compound derived from the protein ADNP, which regulates more than 400 genes and is essential for brain formation, memory, and behavior.

Prof. Gozes and her team of researchers, including Dr. Yan Jouroukhin and graduate student Regin Ostritsky of TAU, observed that in animal models with microtubule damage, NAP was able to maintain or revive the transport of proteins and other materials in cells, ameliorating symptoms associated with neurodegeneration. These findings, which were reported in the journal Neurobiology of Disease, indicate that NAP could be an effective tool in fighting some of the most debilitating effects of neurodegenerative diseases.

Prof. Gozes is the director of TAU's Adams Super Center for Brain Studies and holds the Lily and Avraham Gildor Chair for the Investigation of Growth Factors.

Securing passage through the brain

In their investigation, the researchers used two different animal models with microtubule damage. The first group was made up of normal mice whose microtubule system was broken down through the use of a compound. The second group were genetically-engineered mouse models of ALS, in which the microtubule system was chronically damaged. In both groups, half the mice were given a single NAP injection, while the control half were not.

To determine the impact of NAP on nerve cell communications, the researchers administered the chemical element manganese to all animal models and tracked its movement through the brain using an MRI. In the mice treated with NAP, researchers observed that the manganese was able to travel through the brain normally -- the microtubule system had been protected from damage or restored to normal use. Those mice that did not receive the peptide experienced the usual breakdown or continued dysfunction of the microtubule system.

These findings were corroborated by a subsequent study conducted in the UK, published in the journal Molecular Psychiatry, which found that NAP was able to ameliorate damage in fruit fly models of microtubule deficiency, repairing nerve cell dysfunction.

Slowing down cognitive dysfunction

NAP appears to have widespread potential in terms of neuroprotection, says Prof. , Gozes who was recently awarded the Meitner-Humblodt Research Award for her lifelong contribution to the field of brain sciences.

Previous studies on the peptide, conducted through a collaboration between Allon Therapeutics and Ramot, TAU's technology transfer arm, have shown that patients suffering from cognitive dysfunction -- a precursor to Alzheimer's Disease -- showed significant improvements in their cognitive scores when treated with NAP. Additional studies have also shown that NAP has a positive impact on rectifying microtubule deficiencies in schizophrenia patients.

Prof. Gozes notes that more research must be conducted to discover how to optimize the use of NAP as a treatment, including which patients can benefit most from the intervention.


Story Source:

The above story is based on materials provided by American Friends of Tel Aviv University. Note: Materials may be edited for content and length.


Cite This Page:

American Friends of Tel Aviv University. "A peptide to protect brain function." ScienceDaily. ScienceDaily, 13 June 2013. <www.sciencedaily.com/releases/2013/06/130613112230.htm>.
American Friends of Tel Aviv University. (2013, June 13). A peptide to protect brain function. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2013/06/130613112230.htm
American Friends of Tel Aviv University. "A peptide to protect brain function." ScienceDaily. www.sciencedaily.com/releases/2013/06/130613112230.htm (accessed April 23, 2014).

Share This



More Health & Medicine News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Pharma Braces for M&A Wave

Big Pharma Braces for M&A Wave

Reuters - Business Video Online (Apr. 22, 2014) Big pharma on the move as Novartis boss, Joe Jimenez, tells Reuters about plans to transform his company via an asset exchange with GSK, and Astra Zeneca shares surge on speculation that Pfizer is looking for a takeover. Joanna Partridge reports. Video provided by Reuters
Powered by NewsLook.com
How Smaller Plates And Cutlery Could Make You Feel Fuller

How Smaller Plates And Cutlery Could Make You Feel Fuller

Newsy (Apr. 22, 2014) NBC's "Today" conducted an experiment to see if changing the size of plates and utensils affects the amount individuals eat. Video provided by Newsy
Powered by NewsLook.com
How to Master Motherhood With the Best Work/Life Balance

How to Master Motherhood With the Best Work/Life Balance

TheStreet (Apr. 22, 2014) In the U.S., there are more than 11 million couples trying to conceive at any given time. From helping celebrity moms like Bethanny Frankel to ordinary soon-to-be-moms, TV personality and parenting expert, Rosie Pope, gives you the inside scoop on mastering motherhood. London-born entrepreneur Pope is the creative force behind Rosie Pope Maternity and MomPrep. She explains why being an entrepreneur offers the best life balance for her and tips for all types of moms. Video provided by TheStreet
Powered by NewsLook.com
Catching More Than Fish: Ugandan Town Crippled by AIDS

Catching More Than Fish: Ugandan Town Crippled by AIDS

AFP (Apr. 22, 2014) The village of Kasensero on the shores of Lake Victoria was where HIV-AIDS was first discovered in Uganda. Its transient population of fishermen and sex workers means the nationwide programme to combat the virus has had little impact. Duration: 02:30 Video provided by AFP
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