DNA Replication News and Research

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DNA replication, the basis for biological inheritance, is a fundamental process occurring in all living organisms to copy their DNA. This process is "semiconservative" in that each strand of the original double-stranded DNA molecule serves as template for the reproduction of the complementary strand. Hence, following DNA replication, two identical DNA molecules have been produced from a single double-stranded DNA molecule. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.

HSV1 drugs could slow progression of Alzheimer's disease

Antiviral drugs used to target the herpes virus could be effective at slowing the progression of Alzheimer's disease (AD), a new study shows.

From The University of Manchester 18 Oct 2011

Researchers identify unusual genomic architecture linked with very severe forms of disease

When cells divide normally, DNA gets copied perfectly and distributed among the daughter cells with an even hand. Occasionally though, DNA breaks during division and is rearranged, resulting in duplications or deletions of important parts of the blueprint.

3 Oct 2011

Cornell researchers learn how helicase enzyme works to unzip two strands of DNA

With an eye toward understanding DNA replication, Cornell researchers have learned how a helicase enzyme works to actually unzip the two strands of DNA.

19 Sep 2011

Caffeine in sunscreens may protect from skin cancer: Study

Studies have revealed that drinking caffeinated beverages reduces one’s chances of developing some types of cancer, including UV-associated skin cancer. Now, researchers propose a possible mechanism for this observation—the inhibition of a DNA repair pathway that sensitizes cells to death after sun exposure.

15 Aug 2011

Humans' desire to kill rats has only made them stronger

Over millennia, mice have thrived despite humanity's efforts to keep them at bay. A Rice University scientist argues some mice have found two ways to achieve a single goal -- resistance to common poison.

22 Jul 2011

Hallmark of cancer cells

Scientists from the Hebrew University have identified the molecular basis for DNA breakage, a hallmark of cancer cells. The findings of this research have just been published in the journal Molecular Cell.

20 Jul 2011

Scientists discover mechanism that enables developing cancer cells to sustain abnormal growth

Scripps Research Institute scientists have discovered a basic mechanism that can enable developing cancer cells to sustain abnormal growth. The finding is expected to lead to the targeting of this mechanism with drugs and diagnostic techniques.

8 Jul 2011

Study illuminates roles of two nearly identical proteins in cancer development

7 Jul 2011

BGI releases first complete map of Germany E. coli O104:H4 genome

Building upon previous efforts producing a high-quality de novo genome assemblies of deadly 2011 E. coli O104:H4 outbreak strain, the BGI and their collaborators at the University Medical Centre Hamburg-Eppendorf have now released the first complete map of the genome and plasmids without any assembly gaps.

17 Jun 2011

LLS announces four new Academic Concierge partnerships for cancer drug development

With more than 320 academic science research grants currently in its portfolio, The Leukemia & Lymphoma Society (LLS) has made it a priority to help move promising discoveries more quickly from the laboratory to clinical trial and to patients with cancer.

7 Jun 2011

Elsevier to organise third Current Opinion conference in structural biology, DNA repair

Elsevier, the leading provider of scientific, technical and medical information products and services, is organising the third Current Opinion conference, the Current Opinion in Structural Biology & DNA Repair.

1 Jun 2011

Researchers develop protein-based inhibitor that can treat HPV

Human papillomavirus causes cervical cancer, the second most common cause of cancer death for women, and is a common cause of anogenital and some head and neck cancers.

27 Apr 2011

DNA rearrangements in roundworm chromosomes offer insight into genome duplications in developing tumors

A study of DNA rearrangements in roundworm chromosomes may offer new insight into large-scale genome duplications that occur in developing tumors.

22 Apr 2011

FEN1 enzyme might serve as anti-cancer therapy target

An enzyme essential for DNA replication and repair in humans works in a way that might be exploited as anti-cancer therapy, say researchers at The Scripps Research Institute and Lawrence Berkeley National Laboratory.

15 Apr 2011

Researchers temporarily turn off essential gene using RNAi technology

One way of discovering a gene's function is to switch it off and observe how the loss of its activity affects an organism. If a gene is essential for survival, however, then switching it off permanently will kill the organism before the gene's function can be determined. Researchers at Cold Spring Harbor Laboratory (CSHL) have overcome this problem by using RNA interference (RNAi) technology to temporarily turn off any essential gene in adult mice and then turn it back on before the change kills the animals.

15 Apr 2011

Experimental Biology 2011 to be held April 9-13 in Washington, D.C.

The meeting Experimental Biology 2011 (EB 2011) begins April 9 and runs through April 13 at the Walter E. Washington Convention Center in Washington, D.C.

8 Apr 2011

New discovery in cancer and gene therapy

DNA's role as the master blueprint of the cell means that even small sequence changes can have catastrophic consequences. For this reason, much of our understanding of cancer development comes from studying how cells copy DNA and repair sequence errors--and how these processes can go wrong.

8 Apr 2011

Scientists discover new compounds that may help fight against parasitic diseases

Trypanosomatid parasites cause diseases like African sleeping sickness, Chagas' disease and leishmaniasis. Leishmaniasis affects about 12 million people worldwide, mostly in developing countries. Current drug treatments are inadequate due to drug toxicity and resistance.

5 Apr 2011

Researchers discover process that regulates DNA maintenance

DNA contains all of the genetic instructions that make us who we are, and maintaining the integrity of our DNA over the course of a lifetime is a critical, yet complex part of the aging process.

19 Mar 2011

Novel study deepens understanding of how chromosome replication works

A novel study from the Swedish medical university Karolinska Institutet has deepened the understanding of how chromosome replication, one of life's most fundamental processes, works.

3 Mar 2011