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Latest Cell signaling Stories

2012-03-28 17:20:49

Later-stage cancers thrive by finding detours around roadblocks that cancer drugs put in their path, but a Purdue University biochemist is creating maps that will help drugmakers close more routes and develop better drugs. Kinase enzymes deliver phosphates to cell proteins in a process called phosphorylation, switching a cellular function on or off. Irregularities in phosphorylation can lead to uncontrolled cell growth and are a hallmark of cancer. Many successful cancer drugs are...

2012-03-20 11:19:01

Hedgehog and mTOR converge; Findings suggest new combination therapy Identification of a non-traditional pathway for spiriting a cancer-promoting protein into the cell nucleus points to a possible combination therapy for esophageal cancer and indicates a mechanism of resistance for new drugs that attack the Hedgehog pathway. A team of researchers at The University of Texas MD Anderson Cancer Center reports in the March 20 Cancer Cell that the mTOR molecular pathway promotes the activity...

2012-03-14 12:46:43

Since the mid-1990s, doctors have had the protein Mer in their sights — it coats the outside of cancer cells, transmitting signals inside the cells that aid their uncontrolled growth. A University of Colorado Cancer Center study, recently published in the journal PLoS ONE, found another home for Mer — inside cancer cells´ nuclei — and perhaps another role for this protein that can point the way to novel, targeted treatments. “We´ve known that leukemic B...

2012-03-08 15:52:48

The mechanism involved in the detection of hyperosmolarity by TRP channels is clarified, with a newly discovered molecule preventing apoptosis. A large change in the volume of a cell, from its basal level, is detrimental to its health. Therefore, our cells are equipped with mechanisms to maintain their constant volume. When a cell detects an environmental change that will alter its volume, due to changes in the osmotic pressure, it will adjust its internal water content...

2012-03-07 11:06:18

Do bacteria, like higher organisms, have a built-in program that tells them when to die? The process of apoptosis, or cell death, is an important part of normal animal development. In a new study published March 6 in the online, open-access journal PLoS Biology, Hanna Engelberg-Kulka and colleagues (at Hadassah Medical School of the Hebrew University, Jerusalem, Israel) have described for the first time a novel cell death pathway in bacteria that is similar to apoptosis in higher organisms....

2012-02-15 21:38:43

Researchers at Washington University School of Medicine in St. Louis have identified a potent regulator of sensitivity to insulin, the hormone that controls blood sugar levels. The new findings may help scientists find better treatments for type 2 diabetes, obesity and other health problems caused by the body´s inability to properly regulate blood sugar.   The research is published online Feb. 13 in PLoS ONE. Fat and muscle cells in patients with type 2 diabetes become...

2012-02-14 12:41:44

Researchers of the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch have now identified and described a molecular mechanism underlying the most common malformation of the brain in humans. In holoprosencephaly (HPE), the forebrain (prosencephalon) is only incompletely formed. Here a binding site (receptor) for cholesterol plays a key role. If this receptor is defective, specific signals cannot be received, and the forebrain cannot separate into two hemispheres, as...


Word of the Day
conjunto
  • A style of popular dance music originating along the border between Texas and Mexico, characterized by the use of accordion, drums, and 12-string bass guitar and traditionally based on polka, waltz, and bolero rhythms.
The word 'conjunto' comes through Spanish, from Latin coniūnctus, past participle of coniungere, to join together; see conjoin