Navigation Links
New marker offers hope for more reliable detection of prostate cancer
Date:5/9/2011

A new, promising marker for diagnosing prostate cancer has been discovered by Uppsala researchers with the aid of a unique method developed at the Department of Immunology, Genetics and Pathology. The study, being published this week in the journal Proceedings of the National Academy of Sciences, PNAS, can lead to more reliable diagnoses and fewer unnecessary operations.

The PSA marker used for diagnosing prostate cancer today has been criticized for false positive responses, leading to unnecessary operations. There is therefore great interest in finding new and better biomarkers.

- In the limited patient material examined in our study, blood levels of so-called prostasomes seem to correlate more closely with the severity of the disease than do PSA levels, says Masood Kamali-Moghaddam, a scientist in Professor Ulf Landegren's research team at the Department of Immunology, Genetics, and Pathology.

The team has previously developed a uniquely specific and sensitive method, called proximity ligation, for effective determination of proteins, and the method has now been adapted for detecting prostasomes.

One of the co-authors of the present study, Professor Gunnar Ronquist, showed 30 years ago that prostate cells pump out large quantities of a tiny membrane-coated particle in semen, which he named prostasomes. The hypothesis is that, in cancer, rather than winding up in semen, prostasomes are pumped out into the surrounding cancer tissue in invasive cancer. Therefore, prostasomes could be expected to occur at elevated levels in blood in cases of prostate cancer.

It has not been possible earlier to detect prostasomes in blood, but the researchers devised a unique test that requires several different antibodies to simultaneously recognize proteins on the surface of the prostasomes, and this allowed them to detect elevated levels of prostasomes in the blood of patients with prostate cancer.

"We are hopeful that this type of marker will prove valuable not only for prostate cancer but also in several other common tumor types," says Masood Kamali- Moghaddam.


'/>"/>

Contact: Masood Kamali- Moghaddam
masood.kamali@igp.uu.se
46-070-745-4366
Uppsala University
Source:Eurekalert

Related medicine news :

1. A cancer marker and treatment in 1?
2. Predicting premature birth possible through markers in mothers blood
3. Mans best friend: A joint tumor marker in man and dog
4. New potential atherosclerosis risk marker discovered
5. Blood Marker Suggests Severity of Alzheimers Disease
6. BATTLE researchers identify new biomarkers for EGFR inhibition
7. University of Colorado team identifies new colon cancer marker
8. Biomarker-driven science at the heart of new ACRIN-ECOG structure
9. Validation of salivary-biomarkers for Sjogrens syndrome detection in US population
10. Scientists ID possible biomarker to gauge Alzheimers prognosis, effect of therapies
11. Researchers discover possible biomarker and therapeutic target for melanoma
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... (PRWEB) , ... June 26, 2016 , ... Pixel Film ... Pro X. , "Film editors can give their videos a whole new perspective by ... Austin - CEO of Pixel Film Studios. , ProSlice Levels contains over 30 ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... Austin residents ... the American College of Mohs Surgery and to Dr. Russell Peckham for medical and ... highly effective treatment for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... recover from injury. Recently, he has implemented orthobiologic procedures as a method for ... is one of the first doctors to perform the treatment. Orthobiologics are substances ...
(Date:6/24/2016)... ... June 24, 2016 , ... June 19, 2016 is World Sickle Cell ... pain and the benefits of holistic treatments, Serenity Recovery Center of Marne, ... Cell Disease. , Sickle Cell Disease (SCD) is a disorder of the red blood ...
(Date:6/24/2016)... CA (PRWEB) , ... June 24, 2016 , ... Comfort ... the American Cancer Society and the Road To Recovery® program to drive cancer patients ... seniors and other adults to ensure the highest quality of life and ongoing independence. ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016  Collagen Matrix, Inc., ("Collagen Matrix") ... manufacturing of collagen and mineral based medical devices ... Bill Messer has joined the company ... leverage the growing portfolio of oral surgery, neurosurgery, ... Bill joins the Collagen Matrix executive team as ...
(Date:6/24/2016)... DUBLIN , June 24, 2016 ... addition of the "Structural Electronics 2015-2025: Applications, ... In-Mold Electronics, Smart ... Integrated Photovoltaics Structural electronics involves ... as load-bearing, protective structures, replacing dumb structures such ...
(Date:6/24/2016)... 24, 2016 Research and Markets has ... Companion Diagnostic Tests" report to their offering. ... Diagnostics The World Market for Companion Diagnostics ... diagnostics. Market analysis in the report includes the following: ... Vitro Diagnostic Kits) by Region (N. America, EU, ROW), 2015-2020 ...
Breaking Medicine Technology: