Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Vascular marker of ovarian cancer identified

24.09.2008
Researchers have identified TEM1 as a specific genetic marker for the vascular cells associated with tumor growth, a finding that could aid in diagnosis and treatment of ovarian cancer.

"The laboratory of Dr. George Coukos is developing novel treatments for ovarian cancer which target the vasculature surrounding the tumor, thereby disrupting the blood supply needed for the tumor to grow," said Chunsheng Li, Ph.D., a post-doctoral research fellow at the University of Pennsylvania Ovarian Cancer Research Center.

Li presented his findings at the American Association for Cancer Research Molecular Diagnostics in Cancer Therapeutic Development meeting being held here September 22-25, 2008.

Ovarian cancer is the deadliest gynecologic cancer in the United States, largely due to the fact that there are no reliable methods for detecting ovarian cancer at an early stage, when cure is still possible. Li and colleagues found that high levels of TEM1 were correlated with decreased survival of ovarian cancer patients. Furthermore, all 52 samples of ovarian cancer examined were positive for TEM1 in the vasculature, while none of the control samples tested positive. This suggests that TEM1 is a specific marker for ovarian cancer, which may lead to a potential screening tool.

Li and colleagues have been addressing TEM1's diagnostic value both in vitro and in vivo. In vitro, they used polymerase chain reaction and immunohistochemistry analyses to determine the relative levels of human TEM1 expression in ovarian cancer versus healthy human samples, and in vivo they developed PET imaging studies. Li's preliminary in vivo experiments with a new mouse model implanted with tumor vasculature that expresses human TEM1, demonstrated by PET imaging that a novel anti-TEM1 radiolabel probe could specifically detect a small number of TEM1-expresser cells.

Li said the specific expression of TEM1 by ovarian cancer tumor vasculature, is linked to poor prognosis and the development of new tools able to detect a small number of TEM1-expresser cells in vivo, will allow clinicians to more effectively target the tumor vasculature for diagnostic purposes as well as for treatments that could help halt the disease.

"This will have to be borne out in further studies, but if we can normalize the vasculature surrounding the tumor, we will have a better chance of eradicating the tumor," said Li.

Jeremy Moore | EurekAlert!
Further information:
http://www.aacr.org

More articles from Life Sciences:

nachricht Historical rainfall levels are significant in carbon emissions from soil
30.05.2017 | University of Texas at Austin

nachricht 3D printer inks from the woods
30.05.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: New Method of Characterizing Graphene

Scientists have developed a new method of characterizing graphene’s properties without applying disruptive electrical contacts, allowing them to investigate both the resistance and quantum capacitance of graphene and other two-dimensional materials. Researchers from the Swiss Nanoscience Institute and the University of Basel’s Department of Physics reported their findings in the journal Physical Review Applied.

Graphene consists of a single layer of carbon atoms. It is transparent, harder than diamond and stronger than steel, yet flexible, and a significantly better...

Im Focus: Strathclyde-led research develops world's highest gain high-power laser amplifier

The world's highest gain high power laser amplifier - by many orders of magnitude - has been developed in research led at the University of Strathclyde.

The researchers demonstrated the feasibility of using plasma to amplify short laser pulses of picojoule-level energy up to 100 millijoules, which is a 'gain'...

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

3D printer inks from the woods

30.05.2017 | Life Sciences

How circadian clocks communicate with each other

30.05.2017 | Life Sciences

Graphene and quantum dots put in motion a CMOS-integrated camera that can see the invisible

30.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>