DNA Damage News and Research

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Substance from lapacho tree could lead to new lung-cancer treatment

Researchers at UT Southwestern Medical Center have determined how a substance derived from the bark of the South American lapacho tree kills certain kinds of cancer cells, findings that also suggest a novel treatment for the most common type of lung cancer.

26 Jun 2007

DNA repair by Brca2 prevents medulloblastoma

St. Jude investigators have gained some of the first major insights into how certain genes known to prevent cancer also guide the nervous system's normal development before birth and during infancy by repairing DNA damage.

23 Jun 2007

Herpes virus hijacks DNA repair process

Scientists probing the details of viral infection have discovered an intriguing surprise: in mice, herpes viruses hijack their host cells' tools for fixing DNA damage and use those tools to enhance their own reproduction.

17 Jun 2007

Deleting gene important in embryo development leads to premature aging in mice

Researchers at the Abramson Family Cancer Research Institute of the University of Pennsylvania have found that deleting a gene important in embryo development leads to premature aging and loss of stem cell reservoirs in adult mice.

8 Jun 2007

Aging stem cells in mice may hold answers to diseases of the aged

As stem cells in the blood grow older, genetic mutations accumulate that could be at the root of blood diseases that strike people as they age, according to work done in mice by researchers at the Stanford University School of Medicine.

8 Jun 2007

Smoking can cause changes in the DNA sequence of sperm cells

The science has long been clear that smoking causes cancer, but new research shows that children could inherit genetic damage from a father who smokes.

3 Jun 2007

New candidate breast-cancer susceptibility gene

Researchers at the Abramson Family Cancer Research Institute of the University of Pennsylvania and the Dana-Farber Cancer Institute describe in this week's issue of Science a new candidate breast-cancer susceptibility gene.

28 May 2007

Detailed portrait of 700 proteins that help maintain DNA integrity

Cells have the remarkable ability to keep track of their genetic contents and -- when things go wrong, to step in and repair the damage before cancer or another life-threatening condition develops.

28 May 2007

Brca2 gene prevents medulloblastoma

Investigators at St. Jude Children's Research Hospital have gained some of the first major insights into how certain genes known to prevent cancer also guide the normal development of the nervous system before birth and during infancy by repairing DNA damage.

22 May 2007

Researchers design cell culture test for assessing a compound's genetic toxicity - cheaper than animal tests

In the daunting marathon that leads to successful drugs, promising drug candidates must pass toxicity tests before entering clinical trials.

15 May 2007

Sperm from diabetic men have greater levels of DNA damage which may affect their fertility

In the first study to compare the quality of DNA in sperm from diabetic and non-diabetic men, researchers at Queen’s University Belfast showed that the DNA in the nuclei of the sperm cells had greater levels of fragmentation in diabetic men, and that there were more deletions of DNA in the tiny, energy-generating structures in the cells called mitochondria.

8 May 2007

Diabetes damages DNA in men's sperm and may affect fertility

Scientists have found that sperm from diabetic men have greater levels of DNA damage than sperm from men who do not have the disease.

4 May 2007

M. D. Anderson wins $8.3-million to research environmental causes of major diseases

An $8.3-million federal grant to The University of Texas M. D. Anderson Cancer Center Science Park - Research Division addresses the complex interplay between such varied factors as genetics, diet, and environmental exposure to toxins that cause cancer, asthma, diabetes, cardiovascular and other diseases.

21 Apr 2007

Nanoparticles could damage DNA and lead to cancer

Tissue studies indicate that nanoparticles, engineered materials about a billionth of a meter in size, could damage DNA and lead to cancer, according to research presented at the 2007 Annual Meeting of the American Association for Cancer Research.

18 Apr 2007

Connection between cancer development and Darwinian evolution explored

Cancer is a natural consequence of human evolution. Our genes have not developed to give us long and happy lives.

17 Apr 2007

Lilly and AACR tackle cancer together

Innovative and collaborative cancer research can be the catalyst to improving patient outcomes.

17 Apr 2007

Researchers probe checkpoint signaling responses in unprecedented ways

As published in the April 15th issue of Genes & Development, Dr. Karlene Cimprich and colleagues at Stanford University have determined the minimal DNA structure sufficient to activate the ATR-mediated DNA damage checkpoint.

16 Apr 2007

Study suggests reason for high incidence of cancer in the prostate

Cancer occurs more frequently in the prostates of men than in any organ other than the skin. While DNA damage caused by exposure to the sun is likely the cause of many skin cancers, the cause of prostate cancer remains largely unknown.

12 Apr 2007

Recognition for cancer researchers

World-class cancer researchers whose science has significantly contributed to progress in the fight against cancer will be recognized April 14-18, 2007, by the American Association for Cancer Research (AACR) at its 2007 Annual Meeting in Los Angeles, Calif.

3 Apr 2007