Living Cells News and Research

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New technique explores how cells react to rapidly changing patterns of chemoattractants

Many cell types in higher organisms are capable of implementing directed motion in response to the presence of certain chemical attractants in their vicinity. A team led by Dr. Doris Heinrich of the Faculty of Physics and the Center for NanoScience (CeNS) at Ludwig-Maximilians-Universit-t (LMU) in Munich has developed a novel technique to expose an ensemble of living cells to rapidly varying concentrations of chemoattractants.

6 Jul 2011

Researchers identify altered expression of endogenous retroviruses in BSE-infected macaques

Prion diseases such as Creutzfeldt-Jakob disease in humans and bovine spongiform encephalopathy (BSE) in cattle are transmissible neurodegenerative diseases linked to the aggregation of the prion protein in the central nervous system.

1 Jul 2011

Recombinant attenuated Salmonella vaccines hold promise against infectious diseases

A powerful new class of therapeutics, known as recombinant attenuated Salmonella vaccines (RASV), holds great potential in the fight against fatal diseases including hepatitis B, tuberculosis, cholera, typhoid fever, AIDS and pneumonia.

30 Jun 2011

New research helps explain how memories are stored at synapses

Have a tough time remembering where you put your keys, learning a new language or recalling names at a cocktail party? New research from the Lisman Laboratory at Brandeis University points to a molecule that is central to the process by which memories are stored in the brain. A paper published in the June 22 issue of the Journal of Neuroscience describes the new findings.

24 Jun 2011

'Cell membrane capsules' made from real living cells improve functional drug delivery

The quest for better ways of encapsulating medicine so that it can reach diseased parts of the body has led scientists to harness - for the first time - living human cells to produce natural capsules with channels for releasing drugs and diagnostic agents.

16 Jun 2011

Novel FRET biosensor allows measurement of intraorganellar glutathione potentials in living cells

In work published in the June 2011 issue of Experimental Biology and Medicine, Kolossov, Spring and their co-investigators - a multidisciplinary team within the Institute for Genomic Biology at the University of Illinois - have transferred the concept of redox-sensitive Green Fluorescent Proteins (GFPs) to a quantitative F-rster resonance energy transfer (FRET) imaging platform.

8 Jun 2011

DFG to form new collaborative research centers as of 1 July 2011

The Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) will establish 21 new Collaborative Research Centres (CRCs) as of 1 July 2011. This was decided by the relevant Grants Committee at its spring meeting in Bonn.

4 Jun 2011

Patch-clamp recording reveals subtle differences between two neurotransmitter-gated ion channels

Using a high-resolution single-molecule study technique, University of Illinois researchers have seen the very subtle differences between two branches of an important family of neurotransmitter-gated ion channels.

3 Jun 2011

Improved tissue grafts promote vascular growth in wound sites

Victims of third-degree burns and other traumatic injuries endure pain, disfigurement, invasive surgeries and a long time waiting for skin to grow back. Improved tissue grafts designed by Cornell scientists that promote vascular growth could hasten healing, encourage healthy skin to invade the wounded area and reduce the need for surgeries.

18 May 2011

Pioneer of ‘organ-on-a-chip’ technology to speak at Imperial College London

The potential of microscopic organ-on-a-chip devices that mimic the way real organs work, so that scientists and engineers can model the effects of therapies more accurately, will be discussed by a pioneer in bioengineering at Imperial College London this week.

17 May 2011

New computational model can analyze living cells, social networks

At first glance, a diagram of the complex network of genes that regulate cellular metabolism might seem hopelessly complex, and efforts to control such a system futile. However, an MIT researcher has come up with a new computational model that can analyze any type of complex network - biological, social or electronic - and reveal the critical points that can be used to control the entire system.

13 May 2011

16-year-old uses supercomputing network to invent new drug cocktail for cystic fibrosis

While many 16-year-olds are content with PlayStation, Toronto-area student Marshall Zhang used the Canadian SCINET supercomputing network to invent a new drug cocktail which could one day help treat cystic fibrosis.

11 May 2011

3M introduces Clean-Trace Hygiene Management System for healthcare facilities

As part of its effort to offer a wide range of environmental hygiene solutions for healthcare facilities, 3M Infection Prevention today announced its 3M™ Clean-Trace™ Hygiene Management System. This solution is designed to help hospitals assess the cleanliness of a surface and validate the efficacy of cleaning protocols and worker performance in less than one minute

11 May 2011

Plant hormone auxin acts as a signalling molecule in embryo development

During the development of organisms, a particular event repeatedly occurs: a signal appears temporarily, but the processes it triggers must be maintained - for example, when the fate of cells in the embryo is established.

20 Apr 2011

First-of-its-kind map of recombination hotspots in a multi-celled organism

Researchers have zoomed in on mouse chromosomes to map hotspots of genetic recombination - sites where DNA breaks and reforms to shuffle genes. The findings of the scientists at the National Institutes of Health and Uniformed Services University of Health Sciences (USU) have the potential to improve the detection of genes linked to disease and to help understand the root causes of genetic abnormalities.

6 Apr 2011

Interdisciplinary approach leads to breakthroughs in bio nanotechnology research

Focusing on interdisciplinary research is now leading to breakthroughs in bio nanotechnology research. A new method for drug development has become a reality.

2 Apr 2011

Towards accurate simulation of whole working cells

Researchers have built a computer model of the crowded interior of a bacterial cell that - in a test of its response to sugar in its environment - accurately simulates the behavior of living cells.

31 Mar 2011

Ohio engineers invent new fluorescent nano-particle to tag molecules in biomedical tests

Engineers at Ohio State University have invented a new kind of nano-particle that shines in different colors to tag molecules in biomedical tests.

29 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

Differences between therapeutic radiation therapy and exposure to excessive nuclear plant fallout radiation

"The Canadian Association of Radiation Oncology (http://www.caro-acro.ca) is the voice for specialists in Canada who treat patients' cancer with radiation. In that capacity," explains Dr. Matthew Parliament, president of CARO-ACRO, "we work with proven, controlled, targeted application of various forms of radiation therapy to treat and cure cancer."

21 Mar 2011