Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Proteins in DNA damage response network targeted for new therapies, Moffitt researchers say

16.10.2012
Moffitt Cancer Center Researchers Find DNA Damage Response Network Integrates with Other Cell Activities, Opens Door to New Cancer Therapies
Researchers at Moffitt Cancer Center and colleagues at the University of South Florida; Duke University; Johns Hopkins University; the Brazilian National Cancer Institute; and the Rio de Janeiro Federal Institute of Education, Science and Technology have discovered that an intricate system to repair DNA damage called the “DNA damage response” (DDR) contains previously unknown components, including proteins that could be targeted as sensitizers for chemotherapy. Some of these targets may already have drugs available that have unrecognized uses in cancer therapy, said the researchers.

The study appears in the Sept. 18 issue of Science Signaling.

“A domain called BRCT is frequently present in proteins involved in the DDR network,” said study lead author Alvaro N.A. Monteiro, Ph.D., senior member of Moffitt’s Cancer Epidemiology Program. “We undertook a systematic analysis of the BRCT domain, a protein module that plays a critical role in the DDR, and found a large network of interacting proteins centered on BRCT-containing proteins. In doing so, we discovered new potential players in the DDR. These new players may constitute potential biomarkers for drug response or targets for treatment.”

According to the authors, their data could be used to build a more comprehensive map of the components and interactions involved in the DDR, a system through which proteins detect DNA damage, promote repair and coordinate the cell cycle.

Because defects in the DDR can lead to cancer, the properly functioning network is considered to be a barrier against tumor growth. Chemotherapy regimens exploit weaknesses in the system to kill cancer cells. The new discoveries augment knowledge about the DDR by adding information on the function of specific proteins involved with BRCT-containing proteins.

“Our expectation is that the establishment of the BRCT-network will help identify potential sensitizers of therapy and accelerate the development of new therapeutic strategies,” Monteiro said.

The research was supported in part by the U.S. Army Medical Research and Materiel Command, National Functional Genomics Center (W81XWH-08-2-0101), the Florida Breast Cancer Foundation, and the National Cancer Institute, part of the National Institutes of Health (P50-CA119997).

About Moffitt Cancer Center
Located in Tampa, Moffitt is one of only 41 National Cancer Institute-designated Comprehensive Cancer Centers, a distinction that recognizes Moffitt’s excellence in research, its contributions to clinical trials, prevention and cancer control. Since 1999, Moffitt has been listed in U.S. News & World Report as one of “America’s Best Hospitals” for cancer. With more than 4,200 employees, Moffitt has an economic impact on the state of nearly $2 billion. For more information, visit MOFFITT.org, and follow the Moffitt momentum on Facebook, twitter and YouTube.

Media release by Florida Science Communications

Kim Polacek | EurekAlert!
Further information:
http://www.moffitt.org

Further reports about: BRCT BRCT-containing Cancer DNA DNA damage Moffitt Cancer Center Protein proteins specific protein

More articles from Life Sciences:

nachricht Newly designed molecule binds nitrogen
23.02.2018 | Julius-Maximilians-Universität Würzburg

nachricht Atomic Design by Water
23.02.2018 | Max-Planck-Institut für Eisenforschung GmbH

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Attoseconds break into atomic interior

A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.

In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...

Im Focus: Good vibrations feel the force

A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.

By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...

Im Focus: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Basque researchers turn light upside down

23.02.2018 | Physics and Astronomy

Finnish research group discovers a new immune system regulator

23.02.2018 | Health and Medicine

Attoseconds break into atomic interior

23.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>