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Potential HIV vaccine component undergoes dramatic protein rearrangement

An international study headed by a UC Davis scientist describes how a component of a potential HIV vaccine opens like a flower, undergoing one of the most dramatic protein rearrangements yet observed in nature. The finding could reveal new targets for vaccines to prevent HIV infection and AIDS. A paper describing the work was published online this week in the journal Proceedings of the National Academy of Sciences.

1 Apr 2011

Study: Pseudokinases can play a crucial role in pathogen-based disease

Researchers from the University of Pittsburgh and Stanford University discovered that a supposedly inactive protein actually plays a crucial role in the ability of one the world's most prolific pathogens to cause disease, findings that suggest the possible role of similarly errant proteins in other diseases.

1 Apr 2011

New signaling pathway discovery sheds light on chronic dermatitis

A new signaling pathway, which is important for the regulation of the immune response and inflammation, was discovered by an international team of scientists led by prof Ivan Dikic from the Goethe University, Frankfurt, Germany.

1 Apr 2011

Micro-RNAs appear to play a key role in new mechanism underlying obesity

Max Planck researchers have discovered a new mechanism that leads to the development of type 2 diabetes in obesity. Body weight influences the risk of developing diabetes: between 80 and 90 percent of patients with type 2 diabetes are overweight or obese.

31 Mar 2011

Mucus may play a key role in penetration of hydrophobic substances into cells

Are our bodies vulnerable to some pollutants whose lack of solubility in water, or "hydrophobicity," has always been thought to protect us from them? New Tel Aviv University research has discovered that this is indeed the case.

31 Mar 2011

Researchers identify new mechanism underlying MS

Multiple sclerosis is a disabling autoimmune disease in which nerve fibers are attacked by the patient's own immune system. Researchers at Ludwig-Maximilians-Universitaet in Munich have identified a new mechanism that contributes to nerve fiber damage - and shown that this damage can be reversed.

28 Mar 2011

Imaging with voltage-sensitive dye captures real-time brain dynamics

The dye incorporates in the brain cells' membrane and changes fluorescence whenever these receive or send electrical signals. Hence, high resolution camera systems allow to simultaneously capture activities of millions of nerve cells across several square millimeters across the brain.

24 Mar 2011

New study provides insights into epiboly mechanisms linked with wound healing, cancer

Avian embryos could join the list of model organisms used to study a specific type of cell migration called epiboly, thanks to the results of a study published this month in the journal Developmental Dynamics.

24 Mar 2011

Researchers create hiPS-RPE cells to treat age-related macular degeneration

The notion of transplanting adult stem cells to treat or even cure age-related macular degeneration has taken a significant step toward becoming a reality. In a study published today in Stem Cells, Georgetown University Medical Center researchers have demonstrated, for the first time, the ability to create retinal cells derived from human-induced pluripotent stem cells that mimic the eye cells that die and cause loss of sight.

24 Mar 2011

Cell receptor recycling mechanism discovery opens up new class of therapeutic targets

Prof. Manojkumar Puthenveedu of Carnegie Mellon University studies the mechanisms by which membrane trafficking controls and co-ordinates the complex signalling pathways in the brain. Despite the fact that almost all diseases can be traced to a defect in how cells respond to signals, little is known about how signalling pathways are maintained in normal cells and the changes that occur in abnormal conditions.

23 Mar 2011

Biologists decipher molecular code regulating availability of brain channel linked to neuronal excitability

A key question in protein biochemistry is how proteins recognize "correct" interaction partners in a sea of cellular factors. Nowhere is that more critical to know than in the brain, where interactions governing channel protein activity can alter an organism's behavior.

23 Mar 2011

New synchrotron-based imaging technique offers more detailed chemical images

With intensity a million times brighter than sunlight, a new synchrotron-based imaging technique offers high-resolution pictures of the molecular composition of tissues with unprecedented speed and quality. Carol Hirschmugl, a physicist at the University of Wisconsin-Milwaukee (UWM), led a team of researchers from UWM, the University of Illinois at Urbana-Champaign and University of Illinois at Chicago (UIC) to demonstrate these new capabilities.

21 Mar 2011

Researchers discover 'broad spectrum' cancer suppressor gene

Portuguese researchers have discovered a "broad spectrum" cancer suppressor gene - called LRP1B - which acts by removing proteins crucial for cancer development from the tumour environment. The fact that LRP1B does not act on the tumour itself (in this study thyroid tumours) but, instead, on molecules which are known to be important to many different cancers is what makes it so interesting.

21 Mar 2011

Study reveals new mechanism underlying reproduction in plants

A team of researchers at the Instituto Gulbenkian de Ci-ncia (IGC), Portugal, discovered that pollen, the organ that contains the plant male gametes, communicate with the pistil, their female counterpart, using a mechanism commonly observed in the nervous system of animals.

18 Mar 2011

Modified mRNA raises hope for safe and effective cancer drugs

Modern gene therapies raise hopes of combating many diseases until now considered terminal. Nowadays, however, the methods are expensive and carry a risk of severe complications.

18 Mar 2011

Pig model reveals how cystic fibrosis gene mutation causes disease

It's been more than 20 years since scientists first discovered the gene that causes cystic fibrosis (CF), yet questions about how the mutated gene causes disease remain unanswered.

17 Mar 2011

U-M purchases Fluxion's IonFlux system to study nanoscale membrane disruption

Fluxion Biosciences, Inc. announced today that the University of Michigan Department of Chemistry has purchased the IonFlux 16 automated patch clamp instrument.

From Fluxion Biosciences 16 Mar 2011

Backscattering interferometry can precisely measure membrane protein interactions

A new laser technique has demonstrated that it can measure the interactions between proteins tangled in a cell's membrane and a variety of other biological molecules. These extremely difficult measurements can aid the process of drug discovery.

16 Mar 2011

Researchers identify genetic cause of magnesium deficiency

Researchers and scientists of the Charité - Universitätsmedizin Berlin, in cooperation with the Max Delbrück Center for Molecular Medicine, and colleagues from the Netherlands, Belgium, Switzerland and the Czech Republic have succeeded in identifying a genetic cause of magnesium deficiency.

16 Mar 2011

Researchers discover new key component in lung cancer spread

Researchers discovered a new, key component in the spread of lung cancer as well as a likely way to block it with drugs now in clinical trial. The study was published today (Monday, March 14) in the Journal of Clinical Investigation.

15 Mar 2011