Navigation Links
U-M Researchers ID Gene Involved in Pancreatic Cancer
Date:3/2/2009

ATDC levels average 20-fold higher in cancerous cells

ANN ARBOR, Mich., March 2 /PRNewswire-USNewswire/ -- Researchers from the University of Michigan Comprehensive Cancer Center have identified a gene that is overexpressed in 90 percent of pancreatic cancers, the most deadly type of cancer.

Expression of the gene, Ataxia Telangiectasia Group D Complementing gene, called ATDC, is on average 20 times higher in pancreatic cancer cells than in cells from a normal pancreas. What's more, the gene appears to make pancreatic cancer cells resistant to current therapies.

"One of the challenges in pancreatic cancer is that it is biologically aggressive and it does not respond well to chemotherapy or radiation. We found that ATDC not only causes the cancer cells to grow faster and be more aggressive, but it also makes the cancer cells particularly resistant to chemotherapy and radiation. By targeting this gene, we may be able to make cancer cells more sensitive to the therapies we already have in hand," says senior study author Diane Simeone, M.D., director of the Multidisciplinary Pancreatic Cancer Clinic at the U-M Comprehensive Cancer Center.

Results of the study appear in the March issue of Cancer Cell.

The researchers injected into mice tumor cells expressing ATDC and compared that to a separate group of mice injected with tumor cells in which ATDC was suppressed. In the ATDC-expressing group, tumors grew in all the samples and were significantly larger and starting to metastasize, or spread. In the group in which ATDC was not expressed, only minimal signs of tumor growth were seen after 60 days.

"This particular gene promotes the biologic aggressiveness of the cancer," says Simeone, who is also Lazar J. Greenfield Professor of Surgery and Molecular & Integrative Physiology at the U-M Medical School.

In addition, the researchers found that ATDC is most highly expressed at the point when pre-cancerous cells become malignant. ATDC was also linked to increased levels of a signaling protein called beta-catenin, which is known to play a key role in cancer development.

Researchers believe ATDC has potential as a target for developing future therapies. It could also help doctors determine when a patient has pancreatic cancer and when it's chronic pancreatitis, a diagnosis that's often difficult to make without surgery. In some cases, this may allow patients to avoid an operation.

ATDC also appears to be involved in other cancer types, including bladder cancer and lung cancer. Researchers are continuing to investigate its role. This research was done in the laboratory. No tests or therapies related to ATDC are available at this time.

Pancreatic cancer statistics: 37,680 Americans will be diagnosed with pancreatic cancer this year and 34,290 will die from the disease, according to the American Cancer Society.

Additional authors: Lidong Wang, David G. Heidt, Cheong J. Lee, Huibin Yang, Eric R. Fearon and Mats Ljungman from U-M; Craig D. Logsdon from M.D. Anderson Cancer Center; and Lizhi Zhang from the Mayo Clinic.

Funding: National Institutes of Health, Lustgarten Foundation

Reference: Cancer Cell, Vol. 15, Issue 3, pp. 207-219

Resources:

U-M Cancer AnswerLine, 800-865-1125

U-M Comprehensive Cancer Center, www.mcancer.org


'/>"/>
SOURCE University of Michigan Comprehensive Cancer Center
Copyright©2009 PR Newswire.
All rights reserved

Related medicine news :

1. Stanford researchers find culprit in aging muscles that heal poorly
2. UCLA researchers identify markers that may predict diabetes in still-healthy people
3. Mayo Clinic researchers discover new diagnostic test for detecting infection in prosthetic joints
4. Bipolar disorder relapses halved by Melbourne researchers
5. Cell that triggers symptoms in allergy attacks can also limit damage, Stanford researchers find
6. High and mighty: first common height gene identified by researchers behind obesity gene finding
7. Researchers estimate about 9 percent of US children age 8 to 15 meet criteria for having ADHD
8. Majority of 2.4 Million U.S. Children With ADHD Not Diagnosed or Consistently Treated, According to New Gold Standard Study by Cincinnati Childrens Researchers
9. Researchers develop long-lasting growth hormone
10. Jefferson immunology researchers halt lethal rabies infection in brain
11. Purdue researchers develop technology to detect cancer by scanning surface veins
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/8/2016)... ... February 08, 2016 , ... Delta Dental of California ... combat pancreatic cancer. , Gary D. Radine, who recently retired as president and CEO ... Cancer Society’s 2015 CEO of the Year , helped lead the effort to ...
(Date:2/8/2016)... ... , ... FileHold's document management software has been implemented by ... environment for FileHold software that is pay per user subscription-based and also does ... FileHold web services API. DocuSyst also advises clients on fully functioning back up ...
(Date:2/8/2016)... ... February 08, 2016 , ... TopConsumerReviews.com recently awarded their highest ... products. , Moles are derived from a cluster of melanin when exposed to sunlight. ... places and create a lifetime of embarrassment. Historically, mole removal has involved ...
(Date:2/8/2016)... ... February 08, 2016 , ... ... four states in the U.S. require dental technicians to be certified or obtain ... dental industry, NADL created the “What’s In Your Mouth?” campaign to inform dentists ...
(Date:2/7/2016)... ... 2016 , ... Dr. Todd Hobgood , certificated in ... surgical expertise. Technically known as deoxycholic acid or previously as ATX-101, Kybella® ... for reduction of fat below the chin (aka the “double chin”). Medication side ...
Breaking Medicine News(10 mins):
(Date:2/8/2016)... DIEGO , Feb. 8, 2016 /PRNewswire/--  Cell ... announced that advanced tissue-engineering services are now available ... a groundbreaking new three-dimensional (3D) bioprinting approach called ... 3D Bio Printer , a state-of-the-art robotic system ... has created a powerful pay-for-service bio-printing model that ...
(Date:2/8/2016)... 8, 2016 Velano Vascular, a medical technology ... patients and their practitioners, announced today that the company ... will use the proceeds from this financing, an extension ... January 2015, to support the development and commercialization of ... populations. Philadelphia , and ...
(Date:2/8/2016)... 2016  Unilife Corporation ("Unilife" or "Company") (NASDAQ: UNIS ... delivery systems, today announced that it will release its financial ... 2015 after market close on February 9, 2016.  At this ... discuss these financial results.    About Unilife Corporation ... About Unilife Corporation UNIS ...
Breaking Medicine Technology: