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Scientists identify root cause of chromosomal errors and gene diversity

A team led by a scientist at the University of Pittsburgh School of Medicine has discovered a regulatory protein that influences where genetic material gets swapped between maternal and paternal chromosomes during the process of creating eggs and sperm. The findings, which shed light on the roots of chromosomal errors and gene diversity, appear in tomorrow's issue of Nature.

14 Oct 2010

Gene Biodesign joins Roche NimbleGen Certified Service Provider Program

Roche NimbleGen announced today that Taipei-based genomic services provider Gene Biodesign Enterprises Co. has officially joined the Roche NimbleGen Certified Service Provider (CSP) Program.

13 Oct 2010

Researchers develop new method to identify chemical histone modifications

Test system on Drosophila should provide the key to histone function. The genetic inherited material DNA was long viewed as the sole bearer of hereditary information. The function of its packaging proteins, the histones, was believed to be exclusively structural. Additional genetic information can be stored, however, and passed on to subsequent generations through chemical changes in the DNA or histones. Scientists from the Max Planck Institute for Biophysical Chemistry in Göttingen have succeeded in creating an experimental system for testing the function of such chemical histone modifications and their influence on the organism.

12 Oct 2010

IRSF awards $1.5M in research grants for Rett syndrome treatment

The International Rett Syndrome Foundation (IRSF) announced today that it will award an additional $1.5M in research grants, bringing the 2010 total to $2.15 million for innovative basic and translational research that moves treatments for Rett syndrome a step closer to the clinic.

4 Oct 2010

Cell aging is associated with reduced histone level

Like cats, human cells have a finite number of lives-once they divide a certain number of times they change shape, slow their pace, and eventually stop dividing, a phenomenon called cellular senescence.

4 Oct 2010

Researchers discover new factors that regulate fat formation

By creating a "map" of histone modifications in fat cells, investigators have discovered two new factors that regulate fat formation, a key step on the road to better understanding obesity, diabetes and other metabolic disorders.

1 Oct 2010

Covaris enters co-marketing partnership with Illumina for DNA shearing technologies

Covaris Inc. today announced that it has signed a co-marketing agreement with Illumina, Inc. making Covaris DNA shearing technologies the recommended method of shearing with Illumina next-generation sequencing product lines, including HiSeq, HiScanSQ, and Genome Analyzer.

From Illumina, Inc. 29 Sep 2010

Researchers synthesize molecule to block abnormal protein in cancer cells

In the quest to arrest the growth and spread of tumors, there have been many attempts to get cancer genes to ignore their internal instruction manual. In a new study, a team led by Dana-Farber Cancer Institute scientists has created the first molecule able to prevent cancer genes from "hearing" those instructions, stifling the cancer process at its root.

27 Sep 2010

Researchers awarded funds to assess effects of omega-3 fatty acids on breast cancer development

Two researchers at Marshall University have been awarded federal funds totaling more than $1 million to assess the effects of omega-3 fatty acids on breast cancer development.

18 Sep 2010

Two genes linked to ovarian clear cell carcinoma

Scientists at the Johns Hopkins Kimmel Cancer Center have identified two genes whose mutations appear to be linked to ovarian clear cell carcinoma, one of the most aggressive forms of ovarian cancer. Clear cell carcinoma is generally resistant to standard therapy.

9 Sep 2010

Further evidence on adverse effects of smoking on fertility

Two new studies have shed more light on how smoking may damage fertility, and give further weight to advice that mothers and fathers-to-be should stop smoking before attempting to conceive. The research is published online in the reproductive medicine journal Human Reproduction today (Wednesday 8 September).

8 Sep 2010

Research finds adenovirus impact on cell's suicide program pave way for new cancer therapy

A novel mechanism used by adenovirus to sidestep the cell's suicide program, could go a long way to explain how tumor suppressor genes are silenced in tumor cells and pave the way for a new type of targeted cancer therapy, report researchers at the Salk Institute for Biological Studies in the Aug. 26, 2010 issue of Nature.

26 Aug 2010

Researchers identify molecular signals that impact male fertility: Research

Male infertility is a common medical problem, affecting millions of men in the United States annually. Its causes include an inability to make productive sperm. Now, using yeast as a model organism, researchers at the University of Pennsylvania School of Medicine are beginning to identify the molecular signals that could in part underlie that problem.

25 Aug 2010

Researchers discover genetic alterations responsible for Kabuki syndrome

Using a new, rapid and less expensive DNA sequencing strategy, scientists have discovered genetic alterations that account for most cases of Kabuki syndrome, a rare disorder that causes multiple birth defects and mental retardation. Instead of sequencing the entire human genome, the new approach sequences just the exome, the 1-2 percent of the human genome that contains protein-coding genes.

16 Aug 2010

Researchers reprogram human embryonic stem cells to iPS cells for use in regenerative medicine

Human embryonic stem (ES) cells and adult cells reprogrammed to an embryonic stem cell-like state-so-called induced pluripotent stem or iPS cells-exhibit very few differences in their gene expression signatures and are nearly indistinguishable in their chromatin state, according to Whitehead Institute researchers.The pluripotency of ES cells fueled excitement over their use in regenerative medicine. While ethical hurdles associated with the clinical application of human ES cells appeared to have been overcome with the development of methods to create iPS cells, some recent research has suggested that ES and iPS cells have substantial differences in which sets of genes they express.

6 Aug 2010

Exposure of mBM-MSCs to VPA increases hepatic differentiation

Recent studies suggest that MSCs possess a greater differentiation potential than once thought and several hepatic differentiation protocols from bone marrow cells have been established. However, the incidence of bone marrow-derived hepatocytes was low. Moreover, a long culture period is needed in most cases.

31 Jul 2010

AMPK may regulate epigenetic mechanism: Research

AMP-activated protein kinase, or AMPK, is a master regulator protein of metabolism that is conserved from yeast to humans. When a cell is low on fuel, AMPK shuts down processes that use energy and turns on processes that produce energy.Biologists have been studying how AMPK works for several decades and know that once it is activated, AMPK turns on a large number of genes by passing the "make more energy" message through numerous signaling cascades in the cell. What was not known, until now, was that AMPK also works via an epigenetic mechanism to slow down or stop cell growth.

17 Jul 2010

Subtle mutation affecting epigenome may lead to inherited form of mental retardation: Researchers

A subtle mutation affecting the epigenome –- a set of dynamic factors that influence gene activity -- may lead to an inherited form of mental retardation that affects boys, find researchers at Children's Hospital Boston. The disorder, which also involves cleft lip or cleft palate, appears to hinge on an enzyme working in a biological pathway that may offer several potential drug targets.

12 Jul 2010

New breakthrough in stem cell and tissue engineering

The mechanism by which 'polycomb' proteins critical for embyronic stem cell function and fate are targeted to DNA has been identified by UCL scientists.

14 Jun 2010

Detailed analysis of epigenetics of Wilms tumor reveals similarities to stem cells

A detailed analysis of the epigenetics - factors controlling when and in what tissues genes are expressed - of Wilms tumor reveals striking similarities to stem cells normally found in fetal kidneys. These findings by Massachusetts General Hospital Cancer Center researchers have revealed new cellular pathways that are critical for Wilms tumor development and may also apply to other pediatric cancers.

4 Jun 2010