Navigation Links
Study could lead to 'liquid biopsy' tests for bladder cancer
Date:1/22/2014

MAYWOOD, Il. Findings from a Loyola University Medical Center study ultimately could lead to tests to screen for and diagnose bladder cancer.

Bladder cancer is the fourth most common non-skin cancer. But there is no good screening test for it, and there has been limited progress in characterizing how aggressive an individual's bladder cancer will be.

Loyola researchers studied microscopic droplets, called exosomes, that are shed by cancer cells and are found in urine. Understanding the biology of exosomes could lead to the development of a screening test, which would require a simple urine sample, said lead researcher Gopal Gupta, MD.

Exosomes derived from a urine sample also might help a physician determine how aggressive the cancer is. This, in turn, could better inform treatment decisions. The test would, in effect, serve as a "liquid biopsy," Gupta said.

The study by Gupta and colleagues is published in the peer-reviewed, open-access journal BioMed Research International.

Bladder cancer has been steadily increasing, with little progress in detection and risk stratification. Patients face significant risks of recurrence and progression. Thus, there's an urgent need to identify biomarkers of bladder cancer and the mechanisms by which bladder cancer progresses.

Exosomes are about 30 to 100 nanometers across. (A nanometer is one billionth of a meter). Exosomes contain proteins and the genetic material messenger RNA and micro RNA. RNA is a marker for genes that get expressed (turned on).

Exosomes are shed by cancer cells. In turn, they are taken up by neighboring cells or by other bladder cancer cells.

Researchers used a novel method called image cytometry to quantify how exosomes are taken up by cells. The study demonstrated how exosomes and their cargo can be transferred between cells. This supports the researchers' hypothesis that shedding of exosomes from bladder tumors plays a key role in the spread of the cancer.

Characterizing how exosomes are taken up and internalized by bladder cancer cells "could become invaluable for understanding the role of exosomes on bladder cancer recurrence and progression," the authors wrote.


'/>"/>

Contact: Jim Ritter
jritter@luc.edu
708-216-2445
Loyola University Health System
Source:Eurekalert

Related medicine news :

1. New study examines patterns of cancer screening in Appalachian women
2. Regenstrief, IU study: Half of hospitalized adults over 65 need surrogate decision-makers
3. Study: Possible new druggable target in Ewings Sarcoma
4. Miriam Hospital study links intimate partner violence and risk of HIV
5. Study reveals how ecstasy acts on the brain and hints at therapeutic uses
6. Study finds troubling relationship between drinking and PTSD symptoms in college students
7. China Laser Equipment Industry Production Capacity to Be 2.77 Times More by 2017 in a New Study at MarketReportsChina.com
8. Study questions anti-cancer mechanisms of drug tested in clinical trials
9. Viral microRNAs responsible for causing AIDS-related cancer, new USC study shows
10. Nashville’s Sulphur Dell Neighborhood Selected As Study Area For 2014 Urban Land Institute Gerald D. Hines Student Urban Design Competition
11. Tweaking MRI to track creatine may spot heart problems earlier, Penn Medicine study suggests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, was out ... family verbally and physically. , “When something upset him, he couldn’t control his emotions,” remembers ... would throw rocks at my other children and say he was going to kill them. ...
(Date:6/24/2016)... ... June 24, 2016 , ... ... micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience with all areas ... , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary adjunct ...
(Date:6/24/2016)... ... June 24, 2016 , ... People across the U.S. are sharpening their pencils ... an essay contest in which patients and their families pay tribute to a genetic ... 2016 National Society of Genetic Counselors (NSGC) Annual Education Conference (AEC) this September. ...
(Date:6/24/2016)... ... June 24, 2016 , ... Puradigm® & Innovative Solutions ... initiated cultivation and processing operations at its production facility, and opened its first ... is the manufacturer of a complete system of proactive air and surface purification ...
(Date:6/24/2016)... ... June 24, 2016 , ... Venture Construction Group (VCG) sponsors ... on June 20th at the Woodmont Country Club at 1201 Rockville Pike, Rockville, Maryland, ... to helping service members that have been wounded in battle and their families. Venture ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- Roche (SIX: RO, ROG; OTCQX: RHHBY) announced that ... PCT (procalcitonin) assay as a dedicated testing solution for ... clearance, Roche is the first IVD company in the ... risk assessment and management. PCT is a ... in blood can aid clinicians in assessing the risk ...
(Date:6/23/2016)... 23, 2016 Capricor Therapeutics, ... a biotechnology company focused on the discovery, development ... patient enrollment in its ongoing randomized HOPE-Duchenne clinical ... 50% of its 24-patient target. Capricor expects the ... quarter of 2016, and to report top line ...
(Date:6/23/2016)... Pa. , June 23, 2016 Bracket ... will launch its next generation clinical outcomes platform, Bracket eCOA ... Meeting held on June 26 – 30, 2016 in ... the first electronic Clinical Outcome Assessment product of its kind ... Booth #715. Bracket eCOA 6.0 is a flexible ...
Breaking Medicine Technology: