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.

Researchers identify genetic mutation responsible for MDP Syndrome

National Paracycling Champion Tom Staniford has an extremely rare condition which, until now, has puzzled his doctors. He is unable to store fat under his skin - yet has type 2 diabetes - and suffered hearing loss as a child. Now, thanks to advances in genome sequencing, an international research team led by the University of Exeter Medical School has identified Tom's condition and pinpointed the single genetic mutation that causes it.

17 Jun 2013

New technique may help develop genetic thermometer to assess patients’ health

On May 22, JoVE will publish details of a technique to measure the health of human genetic material in relation to a patient-s age. The method is demonstrated by the laboratory of Dr. Gil Atzmon at New York-s Albert Einstein College of Medicine.

24 May 2013

Expert to explain how drugs induce damage to DNA in public lecture on May 16

Anticancer drugs save lives and/or improve the quality of life for many cancer patients. Many anti-cancer drugs work by killing tumor cells after inducing damage to DNA.

4 May 2013

Research findings suggest new treatment for breast, colon, melanoma and other cancers

A common cancer pathway causing tumor growth is now being targeted by a number of new cancer drugs and shows promising results.

3 May 2013

Details about genomic landscapes of AML and endometrial cancer revealed

Two studies from The Cancer Genome Atlas program reveal details about the genomic landscapes of acute myeloid leukemia and endometrial cancer.

2 May 2013

CNIO researcher captures panoramic photo of proteins that take part in human DNA replication

The Genomic Instability Group led by researcher -scar Fern-ndez-Capetillo at the Spanish National Cancer Research Centre (CNIO), has for the first time obtained a panoramic photo of the proteins that take part in human DNA division, a process known as replication.

26 Apr 2013

Study reveals a new way for detecting colorectal cancers

A unique new study led by University of Kentucky Markey Cancer Center researchers Guo-Min Li and Libya Gu, in collaboration with Dr. Wei Yang at National Institutes of Health, reveals a novel mechanism explaining the previously unknown root cause of some forms of colorectal cancers.

26 Apr 2013

RUB researchers develop new hypothesis on occurrence of Alzheimer's disease

A new hypothesis has been developed by researchers in Bochum on how Alzheimer's disease could occur. They analysed the interaction of the proteins FE65 and BLM that regulate cell division.

15 Apr 2013

Pfizer's breast cancer compound wins FDA's Breakthrough Therapy designation

Pfizer Inc. announced today its investigational compound palbociclib (PD-0332991), an oral and selective inhibitor of cyclin dependent kinases (CDK) 4 and 6, has received Breakthrough Therapy designation by the United States Food and Drug Administration for the potential treatment of patients with breast cancer.

From Pfizer, Inc. 11 Apr 2013

Research sheds new light on role of ATRX mutations in brain and pituitary

Research from Western University and Lawson Health Research Institute sheds new light on a gene called ATRX and its function in the brain and pituitary.

9 Apr 2013

Researchers focus on understanding mechanistic, physiological aspects of conflicts in living cells

Bacteria appear to speed up their evolution by positioning specific genes along the route of expected traffic jams in DNA encoding. Certain genes are in prime collision paths for the moving molecular machineries that read the DNA code, as University of Washington scientists explain in this week's edition of Nature.

30 Mar 2013

HIF-1α protein can work directly to stop new cells from forming

A protein known for turning on genes to help cells survive low-oxygen conditions also slows down the copying of new DNA strands, thus shutting down the growth of new cells, Johns Hopkins researchers report. Their discovery has wide-ranging implications, they say, given the importance of this copying - known as DNA replication - and new cell growth to many of the body's functions and in such diseases as cancer.

23 Feb 2013

Researchers discover SCANR that helps protect a cell's genes against DNA interlopers

Gene wars rage inside our cells, with invading DNA regularly threatening to subvert our human blueprint. Now, building on Nobel-Prize-winning findings, UC San Francisco researchers have discovered a molecular machine that helps protect a cell's genes against these DNA interlopers.

15 Feb 2013

Three Robert Wood Johnson members win Edward J. Ill Excellence in Medicine Awards

Three members of the University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School faculty have been named 2013 recipients of the prestigious Edward J. Ill Excellence in Medicine Awards, highlighting their expertise as exceptional educators or researchers.

1 Feb 2013

G-quadruplexes also exist within the human genome

In 1953, Cambridge researchers Watson and Crick published a paper describing the interweaving 'double helix' DNA structure - the chemical code for all life.

21 Jan 2013

Oncogene-induced senescence could play a key role in future cancer therapy

Cell aging, or cellular senescence, has an important role in the natural physiological response to tumor development. Activated oncogenes are able to induce senescence, and recent findings have suggested that oncogene-induced senescence (OIS) could play a key role in future cancer therapy.

12 Dec 2012

FAC PET identifies liposarcoma tumors that are sensitive to chemotherapy

Liposarcoma, the most common type of sarcoma, is an often lethal form of cancer that develops in fat cells. It is particularly deadly, in part, because the tumors are not consistently visible with positron emission tomography (PET) scans that use a common probe called FDG and because they frequently do not respond to chemotherapy.

11 Dec 2012

Combination of PD-991 and letrozole improves survival in patients with HER2- breast cancer

Pfizer Inc. today announced randomized Phase 2 data that showed PD-0332991 (PD-991) in combination with letrozole significantly extended progression free survival (PFS) compared with letrozole alone in post-menopausal patients with estrogen receptor positive (ER+), human epidermal growth factor receptor 2 negative (HER2-) locally advanced or metastatic breast cancer.

6 Dec 2012

Scientists sequence DNA of biopsied tissue from colon polyps

The causes underlying the development of certain types of common cancers have not yet been elucidated. In order to better determine the origin and the sequence of events responsible for the onset of colon cancer, the teams led by Thanos Halazonetis and Stylianos Antonarakis, professors at the University of Geneva (UNIGE), Switzerland, have sequenced the DNA of biopsied tissue from colon polyps.

2 Dec 2012

Certain mutated cells continue DNA replication process even after drug treatment

Certain mutated cells keep trying to replicate their DNA - with disastrous results - even after medications rob them of the raw materials to do so, according to new research from USC.

21 Nov 2012