Featured Research

from universities, journals, and other organizations

Gene test shows which bladder cancer patients may have cancer spread

Date:
January 21, 2011
Source:
University of Colorado Denver
Summary:
Cancer scientists have designed the first molecular test to predict which bladder cancer patients may have cancer involvement in their lymph nodes at the time of surgery -- which could help doctors determine which patients are good candidates for pre-surgical, or neo-adjuvant, chemotherapy.

Cancer scientists have designed the first molecular test to predict which bladder cancer patients may have cancer involvement in their lymph nodes at the time of surgery -- which could help doctors determine which patients are good candidates for pre-surgical, or neo-adjuvant, chemotherapy.

Related Articles


The test analyzes 20 genes on tumor biopsies, according to a paper published online Jan. 20, 2011, in Lancet Oncology.

"Randomized clinical trials have shown that giving neo-adjuvant chemotherapy extends patient lives, but only 5 to 15 percent of patients benefit," says urologic surgeon Dan Theodorescu, MD, PhD, director of the University of Colorado Cancer Center and lead author of the study. "Patients who have cancer in the lymph nodes at time of diagnosis are likely to benefit the most."

The study analyzed patient tumor samples from the United States, Canada and Germany. It was funded by the National Cancer Institute.

"Today, only about 2 percent of people with invasive bladder cancer have pre-surgical chemotherapy because it's quite difficult to get through and there is fear of delaying surgery," Theodorescu says. "We need a better way to predict who will benefit, and that's what this test does by identifying patients with a high likelihood of lymph node involvement before surgery."

By the time a third of people are diagnosed, bladder cancer has invaded from the bladder lining into the bladder muscle. Gold-standard treatment includes surgical removal of the bladder and the surrounding lymph nodes; some people also undergo radiation treatment. Even with these treatments, the cancer will recur and spread in about half the people -- which is almost always fatal.

Bladder cancer is diagnosed during a procedure called a transurethral resection -- essentially a biopsy of the bladder. Using the new test, pathologists can determine the levels for the 20 genes in the diagnostic tissue sample and indicate whether the patient has cancer in the lymph nodes.

"We validated the test's ability to predict lymph node spread of the cancer in a large sample of patients from a randomized trial," said Theodorescu. "The predictive ability held up. If this new test is used to guide neo-adjuvant chemotherapy, we hope it will both help people with positive nodes live longer and keep people with negative nodes from being overtreated."

A clinical trial of using the test as a treatment guide is being planned.

Incidence of bladder cancer is increasing in the United States, with about 70,530 new cases diagnosed in 2010 according to the American Cancer Society. About 500,000 people are bladder cancer survivors today. Bladder cancer is the fourth most common cancer diagnosed in American men, who are three times more likely to be diagnosed with the disease than women.


Story Source:

The above story is based on materials provided by University of Colorado Denver. Note: Materials may be edited for content and length.


Journal Reference:

  1. Steven Christopher Smith et al. A 20-gene model for molecular nodal staging of bladder cancer: development and prospective assessment. Lancet Oncology, Jan 20, 2011 DOI: 10.1016/S1470-2045(10)70296-5

Cite This Page:

University of Colorado Denver. "Gene test shows which bladder cancer patients may have cancer spread." ScienceDaily. ScienceDaily, 21 January 2011. <www.sciencedaily.com/releases/2011/01/110120142358.htm>.
University of Colorado Denver. (2011, January 21). Gene test shows which bladder cancer patients may have cancer spread. ScienceDaily. Retrieved March 26, 2015 from www.sciencedaily.com/releases/2011/01/110120142358.htm
University of Colorado Denver. "Gene test shows which bladder cancer patients may have cancer spread." ScienceDaily. www.sciencedaily.com/releases/2011/01/110120142358.htm (accessed March 26, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, March 26, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Ready to Pass Medicare Doc Bill

House Ready to Pass Medicare Doc Bill

AP (Mar. 26, 2015) In rare bipartisan harmony, congressional leaders pushed a $214 billion bill permanently blocking physician Medicare cuts toward House passage Thursday, moving lawmakers closer to resolving a problem that has plagued them for years. (March 26) Video provided by AP
Powered by NewsLook.com
HIV Outbreak Prompts Public Health Emergency In Indiana

HIV Outbreak Prompts Public Health Emergency In Indiana

Newsy (Mar. 26, 2015) Indiana Gov. Mike Pence says he will bring additional state resources to help stop the epidemic. Video provided by Newsy
Powered by NewsLook.com
AAA: Distracted Driving a Serious Teen Problem

AAA: Distracted Driving a Serious Teen Problem

AP (Mar. 25, 2015) While distracted driving is not a new problem for teens, new research from the AAA Foundation for Traffic Safety says it&apos;s much more serious than previously thought. (March 25) Video provided by AP
Powered by NewsLook.com
Obama: Affordable Care Act 'saving Lives'

Obama: Affordable Care Act 'saving Lives'

AP (Mar. 25, 2015) Speaking at a White House event marking the fifth anniversary of the Affordable Care Act, President Barack Obama says the law is "saving lives that touch all of us." (March 25) 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