DNA Damage News and Research

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Discovery of key decision-point at which cells with broken DNA repair themselves or die

When cells undergo potentially catastrophic damage, for example as a result of exposure to ionizing radiation, they must make a decision: either to fix the damage or program themselves for death, a process called apoptosis.

12 Apr 2009

Novel method for comprehensive proteome analysis

Investigators at Burnham Institute for Medical Research (Burnham) have deciphered a large percentage of the total protein complement (proteome) in Schizosaccharomyces pombe (S. pombe) fission yeast.

9 Apr 2009

Rak gene helps protect tumor suppressor in breast cancer

Scientists at The University of Texas M. D. Anderson Cancer Center have discovered a gene that protects PTEN, a major tumor-suppressor that is reduced but rarely mutated in about half of all breast cancers.

6 Apr 2009

DNA repair mechanisms relocate in response to stress

Like doctors making house calls, some DNA repair enzymes can relocate to the part of the cell that needs their help, a collaborative team of scientists at Emory University School of Medicine has found.

29 Mar 2009

Alcohol flush signals increased cancer risk among east Asians

Many people of East Asian descent possess an enzyme deficiency that causes their skin to redden, or flush, when they drink alcohol.

23 Mar 2009

Discovery of new protein important in breast cancer gene's role in DNA repair

For years, researchers have known that under normal conditions, the breast cancer protein BRCA1 orchestrates the repair of damaged DNA, but the details of just how BRCA1 moves to the damaged site and recruits the right nuclear repairmen for DNA restoration remains a mystery.

20 Mar 2009

Emphysema linked to accelerated aging protein

A University of Iowa study is apparently the first to make a connection between a rare, hereditary premature aging disease and cell damage that comes from smoking.

8 Feb 2009

Source of cancer stem cells' resistance to radiation discovered

Much to the dismay of patients and physicians, cancer stem cells - tiny powerhouses that generate and maintain tumor growth in many types of cancers - are relatively resistant to the ionizing radiation often used as therapy for these conditions.

5 Feb 2009

Scientists discover missing link in the way cells protect themselves against cancer

Cancer Research UK scientists have discovered a missing link in the way cells protect themselves against cancer, according to research published in Genes & Development.

5 Feb 2009

Exposure to second-hand smoke and alcohol significantly raises the risk of liver disease

The finding adds to mounting evidence that tobacco smoke and alcohol are worse for health as a combination, beyond the individual exposure risks, said Shannon Bailey, Ph.D., an associate professor in the UAB Department of Environmental Health Sciences and a co-lead author on the study.

3 Feb 2009

Revealed! - Missing link in how cells protect themselves from cancer

An international team of scientists have discovered a missing link in the method used by cells to protect themselves from cancer.

3 Feb 2009

Researchers identify biochemical switch required for nerve cells to respond to DNA damage

The finding, scheduled for advance online publication in Nature Cell Biology, illuminates a connection between proteins involved in neurodegenerative disease and in cells' response to DNA damage.

19 Jan 2009

Ground-breaking test for spem quality

Scientists have developed a ground-breaking method for testing the quality of a sperm before it is used in IVF and increase the chances of conception.

19 Jan 2009

Study shows how defective DNA repair triggers 2 neurological diseases

Scientists at St. Jude Children's Research Hospital have teased apart the biological details distinguishing two related neurological diseases-ataxia telangiectasia-like disease (ATLD) and Nijmegen breakage syndrome (NBS).

15 Jan 2009

Time of day influences response to chemotherapy

For years, research has hinted that the time of day that cancer patients receive chemotherapy can impact their chances of survival.

14 Jan 2009

Cell phone use not linked to melanoma of the eye

Mobile phone use is not associated with the risk of melanoma of the eye, researchers report in the January 13 online issue of the Journal of the National Cancer Institute.

13 Jan 2009

Variations in mismatch repair genes predict prognosis in pancreatic cancer

Variations in mismatch repair genes can help predict treatment response and prognosis in patients with pancreatic cancer, according to research from The University of Texas M. D. Anderson Cancer Center presented today in advance of the American Society of Clinical Oncology (ASCO) Gastrointestinal Cancers Symposium.

13 Jan 2009

Virtuoso cell engineering

University of Michigan researchers have discovered that a key protein in cells plays a critical role in not one, but two processes affecting the development of cancer.

6 Jan 2009

Researchers show mechanisms that regulate DNA damage control and replication

Scientists at Burnham Institute for Medical Research (Burnham) have demonstrated important new roles for the protein kinase complex Cdc7/Dbf4 or Cdc7/Drf1 (Ddk) in monitoring damage control during DNA replication and reinitiating replication following DNA repair.

5 Jan 2009