Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

DACH1 a key protein for tumor suppression in ER+ breast cancer

17.07.2009
Researchers from the Kimmel Cancer Center at Jefferson have identified a protein relationship that may be an ideal treatment target for ER+ breast cancer. The study was reported in the July 15 issue of Cancer Research.

DACH1, a cell fate determination factor protein, prevents cancer cell proliferation by repressing the function of estrogen receptorsƒnin breast cancer, the researchers found. However, they also found that as the presence of DACH1 decreases in breast cancer, the presence of estrogen receptors increases, and vice versa.

Approximately 70% of breast cancers are ER+. Treatment for ER+ breast cancer usually consists of hormone therapy, which includes lowering the natural estrogen levels in the body or using synthetic drugs like tamoxifen, which compete with natural estrogen. However, this treatment only works for a few years.

"Eventually, cancer cells will circumvent the estrogen-dependent growth and find a different pathway through which they will proliferate," said Vladimir Popov, a doctoral student in Biochemistry and Molecular Biology at Jefferson College of Graduate Studies of Thomas Jefferson University and the study's first author. "Our lab has shown that there is a correlation between DACH1 and estrogen receptors. DACH1 is a naturally occurring repressor of estrogen receptor function in normal breast tissue, which makes it a promising therapeutic target for patients with ER+ breast cancer."

DACH1 is expressed in normal breast tissue. As breast cancer develops and becomes more invasive, the expression of DACH1 decreases. In a previous study of more than 2,000 breast cancer patients, Jefferson researchers found that a lack of DACH1 expression was associated with a poor prognosis. Patients who did express DACH1 lived an average of 40 months longer.

"Many more studies need to be done, but there is strong evidence that DACH1 is a promising marker of survival and therapeutic target in patients with breast cancer," said the study's senior researcher Richard Pestell, M.D., Ph.D, who is director of the Kimmel Cancer Center and chair of the Cancer Biology department at Jefferson.

Emily Shafer | EurekAlert!
Further information:
http://www.jefferson.edu

Further reports about: Cancer DACH1 ER+ breast cancer breast tissue estrogen receptor synthetic biology

More articles from Life Sciences:

nachricht Designer cells: artificial enzyme can activate a gene switch
22.05.2018 | Universität Basel

nachricht Flow of cerebrospinal fluid regulates neural stem cell division
22.05.2018 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Designer cells: artificial enzyme can activate a gene switch

22.05.2018 | Life Sciences

PR of MCC: Carbon removal from atmosphere unavoidable for 1.5 degree target

22.05.2018 | Earth Sciences

Achema 2018: New camera system monitors distillation and helps save energy

22.05.2018 | Trade Fair News

VideoLinks
Science & Research
Overview of more VideoLinks >>>