Living Cells News and Research

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Gene silencer and quantum dots reduce protein production to a whisper

More than 15 years ago, scientists discovered a way to stop a particular gene in its tracks. The Nobel Prize-winning finding holds tantalizing promise for medical science, but so far it has been difficult to apply the technique, known as RNA interference, in living cells.

9 Jul 2008

Brain trick offers treatment hope for Alzheimer's

Scientists in the UK and Canada have made a significant step forward in the search for new drugs to treat Alzheimer's disease.

2 Jul 2008

Dividing cells find their middle by following a protein contour map

Self-organization keeps schools of fish, flocks of birds and colonies of termites in sync. It's also, according to new research, the way cells regulate the final stage of cell division. Scientists at Rockefeller University have shown that a protein-chemistry-based contour map, which helps individual proteins locate the center of their cell without direction from a 'master organizer,' is key to ensuring accurate division during mitosis.

30 Jun 2008

Quantum dots stop RNA interference in living cells

More than 15 years ago scientists discovered a way to stop a particular gene in its tracks. The Nobel Prize-winning finding holds tantalizing promise for medical science, but so far it has been difficult to apply the technique, known as RNA interference, in living cells.

24 Jun 2008

European researchers take lid off the genome

European researchers have made significant progress unravelling how genes are governed and why this sometimes goes wrong in disease.

15 Jun 2008

Measuring the footprint of cells

Even the slightest differences are important in competitive sport: To improve a ski jumper's performance, the trainer can analyze the jump very accurately using force sensors.

8 Jun 2008

Talking to cells

For an organism to develop and function, the individual cells must exchange information, or communicate, with each other. Is it possible to learn their language and "talk to" the cells? Yes it is: Cameron Alexander and George Pasparakis at the University of Nottingham (UK) have been able to facilitate a conversation between bacterial cells and artificial polymer vesicles.

5 Jun 2008

NCI scientists visualize gene regulation in living cells

A research team led by scientists at the National Cancer Institute (NCI), part of the National Institutes of Health (NIH), has applied advanced imaging methods and computer simulations to be able to glance at the regulation of a cancer-related gene in a living cell. They found that the efficiency with which the components of the cell's gene reading machinery come together has an impact on gene expression, the process by which a gene translates its information into a new protein. The findings, published in the May 23, 2008 issue of Molecular Cell, shed new light on the means by which living cells regulate gene activity.

22 May 2008

Model shows how mutation tips biochemistry to cause Alzheimer's

Your fate can be determined by tiny events. Imagine you live in the city and you walk everywhere to get exercise - you are healthy and not afraid of getting mugged. You almost never eat breakfast so you don't stop at the donut shop on the way to work, until one day the manager replaces the girl at the counter with her pretty red-haired younger sister. This seemingly unimportant change in your world is just enough to overcome your ability to resist high-fat temptation. A million donuts later, your cholesterol level surges and then your heart gives out. Curse you, little red-haired girl!

12 May 2008

Bioartificial kidney speeds recovery, reduces mortality

Another promising clinical trial for the bioartificial kidney is offering researchers even more hope that within the next few years the device will be available to save lives of patients with acute renal failure.

24 Apr 2008

Discovery of method for clamping down on a cancer-promoting enzyme

There are many pathways that allow an errant gene to turn a cell cancerous, and a number of these pathways go through a single enzyme called the p21-activated kinase 1, or PAK1.

18 Apr 2008

TOR signaling and dietary restriction

University of Washington scientists have uncovered details about the mechanisms through which dietary restriction slows the aging process.

17 Apr 2008

Researchers discover protein leiomodin promotes the assembly of an important heart muscle protein actin

Researchers at the University of Pennsylvania School of Medicine have discovered that a protein called leiomodin (Lmod) promotes the assembly of an important heart muscle protein called actin.

11 Apr 2008

Enzyme complex could be key to new cancer treatments

Penn State scientists are the first to observe in living cells a key step in the creation of adenine and guanine, two of the four building blocks that comprise DNA.

4 Apr 2008

Powerful new cell research tool

The view into the inner world of living cells just got a little brighter and more colorful.

26 Feb 2008

Disrupted genetic regulation causes common disturbance in metabolism of fat

The disease familial combined hyperlipidemia (FCH) is a common cause of disturbed metabolism of fat and early heart attacks.

7 Feb 2008

Chemical chaperone could open door to treatment of neurological disorder

An unexpected finding turned out to be a clue leading researchers at Washington University School of Medicine in St. Louis to propose a new treatment approach for Niemann-Pick disease, a rare, deadly neurodegenerative disorder.

7 Feb 2008

Scientists create fluorescent proteins for live cell imaging, biosensor design

Scientists at Carnegie Mellon University's Molecular Biosensor and Imaging Center have developed new "fluorogen activating proteins" (FAPs) that will become a key component of novel molecular biosensor technology being created at Carnegie Mellon.

7 Feb 2008

Disrupted genetic regulation causes common disturbance in metabolism of fat

The disease familial combined hyperlipidemia (FCH) is a common cause of disturbed metabolism of fat and early heart attacks.

5 Feb 2008

New understanding on the mechanics of gene transcription

The molecular machinery behind gene transcription -- the intricate transfer of information from a segment of DNA to a corresponding strand of messenger RNA -- isn't stationed in special "transcription factories" within a cell nucleus, according to Cornell researchers.

9 Jan 2008