Featured Research

from universities, journals, and other organizations

New technology pinpoints genetic differences between cancer and non-cancer patients

Date:
February 26, 2011
Source:
Virginia Tech
Summary:
Scientists have developed a new technology that detects distinct genetic changes differentiating cancer patients from healthy individuals and could serve as a future cancer predisposition test.

A group of researchers led by scientists from the Virginia Bioinformatics Institute (VBI) at Virginia Tech have developed a new technology that detects distinct genetic changes differentiating cancer patients from healthy individuals and could serve as a future cancer predisposition test.

The multidisciplinary team, which includes researchers from the University of Texas Southwestern Medical Center, has created a design for a new DNA microarray that allows them to measure the two million microsatellites (short, repetitive DNA sequences) found within the human genome using 300,000 probes.

Microsatellites, which tend to vary greatly among individuals and have traditionally been used in forensics and paternity tests, are also used to uncover information related to a number of other genetic diseases such as Fragile-X or Huntington's disease. This advancement aided the discovery of a unique pattern of microsatellite variation in breast cancer patients that were not present in the DNA of patients who are cancer-free. Through their evaluation of global changes in the genome, the researchers determined that this pattern change alludes to a new mechanism disrupting the genome in cancer patients and may represent a new breast cancer risk biomarker.

The results of the work will be featured in an upcoming edition of the journal Genes, Chromosomes and Cancer.

"We have now arrived at a new biomarker -- an indicator that could be used to evaluate the amount of risk that you have for developing cancer in the future," explained Harold "Skip" Garner, VBI executive director who leads the institute's Medical Informatics and Systems Division. "This is part of an effort to understand their (microsatellite) role in the genome and then proceed on directly towards something that is of utility in the clinic. What just came out in our paper is a description of the technology that allows us to very quickly and efficiently and inexpensively measure these two million places using a uniquely designed microarray… It's the pattern on that microarray that provides us the information we need."


Story Source:

The above story is based on materials provided by Virginia Tech. Note: Materials may be edited for content and length.


Journal Reference:

  1. Cristi L. Galindo, Lauren J. McIver, Hongseok Tae, John F. McCormick, Michael A. Skinner, Ina Hoeschele, Cheryl M. Lewis, John D. Minna, David A. Boothman, Harold R. Garner. Sporadic breast cancer patients' germline DNA exhibit an AT-rich microsatellite signature. Genes, Chromosomes and Cancer, 2011; DOI: 10.1002/gcc.20853

Cite This Page:

Virginia Tech. "New technology pinpoints genetic differences between cancer and non-cancer patients." ScienceDaily. ScienceDaily, 26 February 2011. <www.sciencedaily.com/releases/2011/02/110222122103.htm>.
Virginia Tech. (2011, February 26). New technology pinpoints genetic differences between cancer and non-cancer patients. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2011/02/110222122103.htm
Virginia Tech. "New technology pinpoints genetic differences between cancer and non-cancer patients." ScienceDaily. www.sciencedaily.com/releases/2011/02/110222122103.htm (accessed October 21, 2014).

Share This



More Health & Medicine News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How Nigeria Beat Its Ebola Outbreak

How Nigeria Beat Its Ebola Outbreak

Newsy (Oct. 20, 2014) The World Health Organization has declared Nigeria free of Ebola. Health experts credit a bit of luck and the government's initial response. Video provided by Newsy
Powered by NewsLook.com
Another Study Suggests Viagra Is Good For The Heart

Another Study Suggests Viagra Is Good For The Heart

Newsy (Oct. 20, 2014) An ingredient in erectile-dysfunction medications such as Viagra could improve heart function. Perhaps not surprising, given Viagra's history. Video provided by Newsy
Powered by NewsLook.com
Ebola Worries End for Dozens on U.S. Watch Lists

Ebola Worries End for Dozens on U.S. Watch Lists

Reuters - US Online Video (Oct. 20, 2014) Forty-three people who had contact with Thomas Eric Duncan, the first person diagnosed with Ebola in the U.S., were cleared overnight of twice-daily monitoring after 21 days of showing no symptoms. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
CDC Calls for New Ebola Safety Guidelines

CDC Calls for New Ebola Safety Guidelines

AP (Oct. 20, 2014) Centers for Disease Control and Prevention Director Dr. Tom Frieden laid out new guidelines for health care workers when dealing with the deadly Ebola virus including new precautions when taking off personal protective equipment. (Oct. 20) Video provided by AP
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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