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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

Constellation Pharmaceuticals raises $22 million in Series B financing round

Constellation Pharmaceuticals, Inc., the leading biopharmaceutical company focused on discovering and developing new drugs targeting epigenetic regulation of the human genome, today announced that it has raised $22 million in a Series B financing round.

2 Jun 2010

DFG approves establishment of twelve new CRCs

The Deutsche Forschungsgemeinschaft has approved the establishment of twelve new Collaborative Research Centres beginning 1 July 2010. This was decided by the responsible Grants Committee at its spring meeting in Bonn. The new CRCs will initially be funded for four years with a total of 112 million euros (including a 20% programme allowance for indirect project costs).

29 May 2010

Sanford-Burnham Scientific Symposium provides wealth of information on microRNAs, RNAi

Investigators from around the country came to Sanford-Burnham Medical Research Institute (Sanford-Burnham) on Friday, May 7, to share their knowledge of the burgeoning young field of microRNAs. These small non-coding nucleic acids turn off proteins and have been implicated in viral infection, cancer, cardiovascular disease, HIV and numerous other conditions.

12 May 2010

Researchers investigate aberrant expression of nuclear matrix proteins in gastric cancer cells

Gastric cancer is the most common malignant gastrointestinal cancer and accounts for 25% of cancer deaths. Nuclear matrix, a filamentous protein framework for eukaryotic cellular chromatin, closely relates to DNA duplication and transcription. Research on nuclear matrix proteins will provide insight into how tumors developed.

7 May 2010

The emerging science of epigenetics

Human embryonic stem cells (hESCs) possess remarkable properties of self-renewal and pluripotency, the ability to become almost any kind of cell within the body. And yet they share the same genome or set of genes with lineage-committed cells, cells fated to be or do one thing.

7 May 2010

NIH awards CSU biochemists $7.8M grant to study gene regulation within cells

A team of top biochemists at Colorado State University will investigate how chromosomes untangle to expose genes that dictate cell behavior - a unique project that could have a significant impact on understanding human health.

5 May 2010

Deficiency of frataxin protein causes Friedreich's ataxia

The defective gene responsible for Friedreich's ataxia was identified over 20 years ago, but so far our ideas of how this gene causes the disease have been merely speculative. It was assumed that, as a result of the mutation, the gene could no longer be transcribed because this stretch of DNA was inaccessible. FMI Group Leader Marc Bühler and his team have now carried out experiments demonstrating that this is not the case and revealing what actually happens in Friedreich's ataxia.

4 May 2010

Genomic component playing key role in promoting breast cancer progression discovered

Life Technologies Corporation today announced that its scientists have teamed with researchers from Stanford University School of Medicine, and other institutions to discover a genomic component that plays a key role in promoting breast cancer progression. A study published today in the journal Nature details how levels of a specific kind of non-coding RNA molecule in primary breast tumors regulate metastasis and tumor invasiveness and may be an important target for cancer diagnosis and therapy.

15 Apr 2010

New methodology helps investigate unfolding of DNA

NYU Langone Medical Center researchers have developed a powerful new method to investigate the discrete steps necessary to turn on individual genes and examine how the process goes wrong in cancer and other diseases. The finding, based on seven years of research and described in the April 9 issue of Molecular Cell, allows scientists to investigate the unfolding of DNA, a process required for gene activation.

9 Apr 2010

Study promises new combination cancer therapy for drug resistance

Results reported in the April 2nd issue of the journal Cell, a Cell Press publication, reveal a new source for the drug resistance that crops up all too often and quickly in the tumors of cancer patients undergoing therapy.

2 Apr 2010

Chromatin expands operations to 5,000 square foot facility in University of Illinois' Research Park

The University of Illinois today announces that Chromatin, Inc., a biotechnology company that has occupied space in the University's Research Park since 2005 as part of the EnterpriseWorks incubator, is expanding operations and graduating to a 5,000 square foot facility in the Research Park. The expansion marks the company's continued significant progress in commercializing its proprietary technology, including mini-chromosomes which were originally developed at the University of Chicago by company co-founder and CEO Daphne Preuss.

30 Mar 2010

Working of master regulator protein phosphatase 1

Protein phosphorylation is a process by which proteins are flipped from one activation state to another. It is a crucial function for most living beings, since phosphorylation controls nearly every cellular process, including metabolism, gene transcription, cell-cycle progression, cytoskeletal rearrangement and cell movement.

26 Mar 2010