Featured Research

from universities, journals, and other organizations

Combining plasma screening with genetic screening better identifies diagnostic and therapeutic targets

Date:
February 8, 2013
Source:
Genetics Society of America
Summary:
New research shows that marrying genome-wide and proteome-wide screening helps determine susceptibility in a wide variety of diseases.

For the first time, scientists have combined genomic and proteomic analysis of blood plasma to enhance identification of genetically regulated protein traits. This could be applied to any large association study of civilization diseases where blood plasma has been collected, vastly improving a clinician's ability to identify disease susceptibility in individuals and populations.

"We hope that combining genome-wide with proteome-wide screening of blood plasma will aid in the identification of molecular disease mechanisms," said Daniel Teupser, M.D., a researcher involved in the work from the Institute of Laboratory Medicine at Ludwig-Maximilians-University, in Munich, Germany. "The methodology is applicable to many frequent diseases such as diabetes, cardiovascular disease or cancer and might accelerate identification of novel diagnostic and therapeutic targets."

To make this advance, Teupser and colleagues analyzed 455 plasma samples from the offspring of two different inbred mouse strains using mass spectrometry. This allows researchers to distinguish proteins based on differences in their molecular weight. The resulting protein phenotypes of all 455 F2 mice were associated with 177 genetic markers evenly distributed over the mouse genome. This led to the identification of genetically regulated plasma proteins. The strongest two associations were with the genes encoding hemoglobin and apolipoprotein 2. The responsible genetic variants were identified in additional functional experiments.

Mass spectrometry has already been adapted for clinical applications, and plasma is often the target because of it easy accessibility. Since plasma comes in contact with most tissues, it often mirrors metabolism and disease. This study pioneers a promising approach to identify novel disease-associated proteins, which could provide novel diagnostic or therapeutic targets of disease.   "Gene variants are now easy to identify, so what's become limiting is the traits -- the phenotype -- to link to those variants. This study goes a long way to opening up that bottleneck. The high-throughput screening the authors describe holds tremendous promise for finding diagnostic markers and therapeutic targets of disease," said Mark Johnston, Editor-in-Chief of the journal GENETICS.


Story Source:

The above story is based on materials provided by Genetics Society of America. Note: Materials may be edited for content and length.


Journal Reference:

  1. L. M. Holdt, A. von Delft, A. Nicolaou, S. Baumann, M. Kostrzewa, J. Thiery, D. Teupser. Quantitative Trait Loci Mapping of the Mouse Plasma Proteome (pQTL). Genetics, 2012; 193 (2): 601 DOI: 10.1534/genetics.112.143354

Cite This Page:

Genetics Society of America. "Combining plasma screening with genetic screening better identifies diagnostic and therapeutic targets." ScienceDaily. ScienceDaily, 8 February 2013. <www.sciencedaily.com/releases/2013/02/130208105301.htm>.
Genetics Society of America. (2013, February 8). Combining plasma screening with genetic screening better identifies diagnostic and therapeutic targets. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2013/02/130208105301.htm
Genetics Society of America. "Combining plasma screening with genetic screening better identifies diagnostic and therapeutic targets." ScienceDaily. www.sciencedaily.com/releases/2013/02/130208105301.htm (accessed July 22, 2014).

Share This




More Health & Medicine News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Courts Conflicted Over Healthcare Law

Courts Conflicted Over Healthcare Law

AP (July 22, 2014) Two federal appeals courts issued conflicting rulings Tuesday on the legality of the federally-run healthcare exchange that operates in 36 states. (July 22) Video provided by AP
Powered by NewsLook.com
Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Scientists Find New Way To Make Human Platelets

Scientists Find New Way To Make Human Platelets

Newsy (July 22, 2014) Boston scientists have discovered a new way to create fully functioning human platelets using a bioreactor and human stem cells. Video provided by Newsy
Powered by NewsLook.com
Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
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