DNA News and Research

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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

PSCA gene’s rs2294008 variant on T nucleotide may increase risk of bladder cancer

Patients who have inherited a specific common genetic variant develop bladder cancer tumors that strongly express a protein known as prostate stem cell antigen (PSCA), which is also expressed in many pancreatic and prostate tumors, according to research at the National Institutes of Health.

4 Jan 2013

Chromatin regulation not governed by a uniform histone code

In a novel use of gene knockout technology, researchers at the University of California, San Diego School of Medicine tested the same gene inserted into 90 different locations in a yeast chromosome - and discovered that while the inserted gene never altered its surrounding chromatin landscape, differences in that immediate landscape measurably affected gene activity.

4 Jan 2013

New technique can precisely add or delete genes in living cells

Researchers at MIT, the Broad Institute and Rockefeller University have developed a new technique for precisely altering the genomes of living cells by adding or deleting genes.

4 Jan 2013

Trovagene, MD Anderson partner to detect transrenal BRAF mutations in metastatic cancers

Trovagene, Inc., a developer of transrenal molecular diagnostics, announced that it has entered into a clinical collaboration with The University of Texas MD Anderson Cancer Center to detect transrenal BRAF mutations in the urine of patients with advanced or metastatic cancers.

3 Jan 2013

Prenatal brain development may be important influence on psychiatric risk later in life

Some brain changes that are found in adults with common gene variants linked to disorders such as Alzheimer's disease, schizophrenia, and autism can also be seen in the brain scans of newborns.

3 Jan 2013

Sexual revolution effect may be hiding true extent of HPV prevalence

Human papillomavirus infection in older women is commonly due to reactivation of latent disease rather than new infection, research indicates.

2 Jan 2013

DNA adducts linked to oral cancer in smokers

Having a high susceptibility to certain types of DNA damage caused by tobacco smoking could significantly increase the risk for oral cancer, show results of a Taiwanese study.

28 Dec 2012

Researchers study response of living cells to artificial protein

One approach to understanding components in living organisms is to attempt to create them artificially, using principles of chemistry, engineering and genetics. A suite of powerful techniques-collectively referred to as synthetic biology-have been used to produce self-replicating molecules, artificial pathways in living systems and organisms bearing synthetic genomes.

28 Dec 2012

New light on how epigenetic signals may function together to determine fate of stem cell

Long-standing research efforts have been focused on understanding how stem cells, cells capable of transforming into any type of cell in the body, are capable of being programmed down a defined path to contribute to the development of a specific organ like a heart, lung, or kidney. Research from the University of North Carolina at Chapel Hill School of Medicine has shed new light on how epigenetic signals may function together to determine the ultimate fate of a stem cell.

28 Dec 2012

Trovagene adds Duke University Health System to worldwide licensees of NPM1 marker for AML

Trovagene, Inc., a developer of transrenal molecular diagnostics, announced it has granted Duke University and Duke University Health Systems a non-exclusive license to incorporate nucleophosmin protein (NPM1) into research and clinical testing services for acute myelogenous leukemia (AML).

27 Dec 2012

Researchers reveal critical role of BRCA1 gene in maintenance of hair follicle stem cells

Our DNA, which stores our genetic information, is constantly submitted to damage. If not properly repaired, DNA damage can lead to cell death, which may in turn lead to tissue exhaustion and ageing, or induce mutations resulting in uncontrolled cell proliferation and cancer. Brca1 is a key gene that mediates DNA repair. Mutations in Brca1 lead to familial and sporadic breast and ovarian cancer in humans.

27 Dec 2012

Whole Genome Mapping and NGS deliver high-quality reference genome of domestic goat

OpGen, Inc. today announced its ARGUS Whole Genome Mapping System technology was used in combination with next-generation sequencing (NGS) to produce the first, high-quality reference genome of the domestic goat.

26 Dec 2012

Genome sequencing may help identify new targets to treat Pneumocystis pneumonia

Scientists have sequenced the genome of the fungus Pneumocystis jirovecii, an advancement that could help identify new targets for drugs to treat and prevent Pneumocystis pneumonia, a common and often deadly infection in immunocompromised patients.

26 Dec 2012

Cancer-associated inflammation boosts ADAR1 enzyme activity

An international team, headed by researchers at the University of California, San Diego School of Medicine, has identified a key enzyme in the reprogramming process that promotes malignant stem cell cloning and the growth of chronic myeloid leukemia (CML), a cancer of the blood and marrow that experts say is increasing in prevalence.

25 Dec 2012

Genetic innovations for pneumonia diagnosis in children

Polymerase chain reaction could help diagnose Mycoplasmia pneumonia infection in children, researchers say.

24 Dec 2012

Autism genome not shy about tinkering with important genes

An international team, led by researchers from the University of California, San Diego School of Medicine, has discovered that "random" mutations in the genome are not quite so random after all. Their study, to be published in the journal Cell on December 21, shows that the DNA sequence in some regions of the human genome is quite volatile and can mutate ten times more frequently than the rest of the genome. Genes that are linked to autism and a variety of other disorders have a particularly strong tendency to mutate.

21 Dec 2012

Roche, PSS partner to develop fully automated emulsion PCR instrument for sequencing

Roche and Precision System Science, Co., Ltd (PSS) today announced the signing of an exclusive agreement to develop and manufacture a fully automated emulsion PCR instrument for Roche's portfolio of next-generation sequencing platforms. It is intended to support Roche's GS Junior and GS FLX+ systems as well as the sequencing platforms that Roche is currently developing.

From Roche Sequencing and Life Science 21 Dec 2012

UAB research succeeds in testing a vaccine against leishmaniasis

A research coordinated by the UAB has succeeded in testing a vaccine against leishmaniasis. The vaccine was tested with the best animal model existing, the golden hamster, and can be produced at low costs by using insect larvae.

21 Dec 2012

New technique may prevent inheritance of mitochondrial diseases in children

A joint team of scientists from The New York Stem Cell Foundation (NYSCF) Laboratory and Columbia University Medical Center (CUMC) has developed a technique that may prevent the inheritance of mitochondrial diseases in children.

21 Dec 2012

Melanoma patients may benefit from microRNA-26a replacement therapy

A University of Colorado Cancer Center study in this month's edition of the Journal of Investigative Dermatology describes a new target and potential treatment for melanoma, the most dangerous form of skin cancer. MicroRNA can decide which genes in a cell's DNA are expressed and which stay silent. Melanoma tends to lack microRNA-26a, which makes the gene SODD go silent.

21 Dec 2012