Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Fox Chase Cancer Center research shows kidney cancer can be diagnosed in urine

10.05.2004


Fox Chase Cancer Center researchers have demonstrated the ability to identify kidney cancer, including localized (stage I) cancer, in the urine of affected patients. What’s more, urine tests were repeated following the removal of the cancerous kidney and none of the tests showed DNA evidence of disease. These research findings were presented at the American Urological Association Annual Meeting May 8-13, 2004 in San Francisco.



As with other cancers, an early diagnosis of kidney cancer can result in curative treatment whereas the prognosis for advanced kidney cancer is poor. The challenge in diagnosing cancer early is developing an inexpensive, noninvasive, accurate and simple screening test. A urine test meets these standards.

"We used a common laboratory procedure to test the urine of 50 patients with kidney cancer," explained Fox Chase molecular biologist Paul Cairns, Ph.D. "Forty-four of the 50 tests showed gene changes in the urine that were identical to the gene changes found in the tumor tissue taken at the time of surgery."


When the same test was conducted on the controls – urine from people without cancer – none showed the relevant gene alterations that were found in the urine from people with cancer.

"The test appears to be remarkably accurate with no false-positives in this study," said Robert G. Uzzo, M.D., a urologic surgeon at Fox Chase and lead author of the abstract. "In addition, one of the most impressive outcomes of this research is that the test also identified 27 of the 30 patients with stage I disease."

The researchers then tested the urine of 17 patients after they had surgery to remove the cancerous kidney. Mutated genes present in the urine prior to the kidney removal were not present in the urine after the kidney was removed.

"This step in our research further supports the accuracy of this potential screening test but also demonstrates the possibility of using urine to monitor the patient after treatment," Uzzo added.

The researchers used a molecular DNA-based test called methylation-specific PCR (polymerase chain reaction) to detect gene alterations that initiate and fuel the onset of cancer. The test searched for six cancer specific tumor-suppressor genes that were altered – causing them to falter in their critical role of preventing errant cell growth. These six genes are usually identified only after a pathologist’s review of tumor tissue.

"In addition to early detection, differential diagnosis and surveillance, this testing could potentially be extended in the future to simultaneously provide molecular staging and prognostic information," Uzzo concluded.

Currently, kidney cancer is diagnosed after radiographic imaging of the kidney, which may include an ultrasound, CT scan and/or MRI. Biopsy of a kidney mass is often difficult to interpret or may give a false negative result and therefore currently confirmation of radiographic results is primarily after surgical excision. There is no protein marker test for kidney cancer as there is for prostate cancer with the PSA test.

This research was supported in part by a grant from the Flight Attendants Medical Research Institute (FAMRI) and the National Cancer Institute’s Early Detection Research Network.


Fox Chase Cancer Center was founded in 1904 in Philadelphia, Pa. as the nation’s first cancer hospital. In 1974, Fox Chase became one of the first institutions designated as a National Cancer Institute Comprehensive Cancer Center. Fox Chase conducts basic, clinical, population and translational research; programs of prevention, detection and treatment of cancer; and community outreach. For more information about Fox Chase activities, visit the Center’s web site at http://www.fccc.edu or call 1-888-FOX CHASE.

Karen C. Mallet | EurekAlert!
Further information:
http://www.fccc.edu/

More articles from Health and Medicine:

nachricht Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University

nachricht ASU scientists develop new, rapid pipeline for antimicrobials
14.12.2017 | Arizona State University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

Im Focus: Successful Mechanical Testing of Nanowires

With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong

Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Plasmonic biosensors enable development of new easy-to-use health tests

14.12.2017 | Health and Medicine

New type of smart windows use liquid to switch from clear to reflective

14.12.2017 | Physics and Astronomy

BigH1 -- The key histone for male fertility

14.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>