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Penn researchers demonstrate that a metabolic enzyme works through the tumor-suppressor protein p53 to control cellular replication

Researchers at the University of Pennsylvania School of Medicine have identified in normal cells that a common metabolic enzyme, which acts as a rheostat of cellular conditions, also controls cell replication.

4 May 2005

Researchers unravel how nature releases the torque built up in DNA at the molecular level

A Dutch led international team of researchers has unravelled how nature releases the torque built up in DNA at the molecular level. The researchers from Delft University of Technology, the Ecole Normale Supérieure in Paris and the Sloan-Kettering Institute in New York published their findings in the 31 March 2005 issue of Nature. An artistic impression of the enzyme at work is featured on the cover of this issue.

4 May 2005

Two-photon imaging gives real-time video of cells in living tissue

Biologists have a new tool to track and videotape cells moving about inside living tissue.

3 May 2005

Researchers make new advances in determining the structure of all possible DNA sequences

Oregon State University researchers have made significant new advances in determining the structure of all possible DNA sequences – a discovery that in one sense takes up where Watson and Crick left off, after outlining in 1953 the double-helical structure of this biological blueprint for life.

3 May 2005

Critical lock and key mechanism found for the assembly of tumor blood vessels

A critical lock and key mechanism that allows the final step in the completion of new blood vessel formation has been identified by a University of California, San Diego (UCSD) School of Medicine team in research that promises to lead to a new way to halt tumor growth by cutting off the tumor blood supply.

3 May 2005

Scientists dramatically slow organ transplant rejection

That's the promising implication of an animal study carried out by researchers at the University of Alabama at Birmingham (UAB) and the University of Florida (UF) published in today's (May 2) issue of Proceedings of the National Academy of Sciences.

3 May 2005

Little known enzyme ACAT2 appears to be a factor in cardiovascular disease

New research suggests that a little-studied enzyme ACAT2, may play a major role in cardiovascular disease because it alters the molecular structure of cholesterol.

2 May 2005

Clues about the causes of dementia in Huntington's disease

Scientists at Melbourne's Howard Florey Institute have uncovered a clue about the causes of dementia in Huntington's disease, one of the disease's symptoms, by showing that mice susceptible to Huntington's disease have problems with learning and memory before the diseases' typical movement problems appear.

27 Apr 2005

Maxim Pharmaceuticals issued patent for method of identifying therapeutically effective immunosupressive agents

Maxim Pharmaceuticals have announced the United States Patent and Trademark Office issued U.S. patent number 6,828,091 B2, entitled "Method of Identifying Immunosuppressive Agents."

23 Apr 2005

Researchers make gains in understanding antibiotic resistance

Howard Hughes Medical Institute researchers chiseling away at the problem of antibiotic resistance now have a detailed explanation of how the drugs' main cellular target in bacteria evolves to become resistant to some of these medications.

22 Apr 2005

Scientists weaponize an antibody to deliver continuous attacks on cancer cells

In a recent study published in Molecular Cancer Therapeutics, researchers at the Weizmann Institute of Science paired the active ingredient of a garden remedy with advanced bio-technology to deliver a powerful punch against cancer. The cancer killing effectiveness lies in their technique of arming a cancer-targeting antibody with the destructive potential of the dietary molecule otherwise known as "allicin."

22 Apr 2005

Discovery may lead to new drugs to prevent sexually transmitted HIV infection

Scientists have long suspected that HIV hijacks immune cells called dendritic cells to infiltrate the immune system. Now UCLA AIDS Institute researchers have shown that blocking HIV's access to a naturally occurring molecule on dendritic cells may cut their ability to smuggle the virus into other immune cells.

21 Apr 2005

First time video capture of chemical signals that traverse human cells messaging

Researchers at UCSD and UC Irvine have captured on video for the first time chemical signals that traverse human cells in response to tiny mechanical jabs, like waves spreading from pebbles tossed into a pond. The scientists released the videos and technical details that explain how the visualization effect was created as part of a paper published in the April 21 issue of Nature.

21 Apr 2005

With a complement, the sperm gets the egg

When a sperm fuses with an egg, a specific reaction takes place that exposes the inner membrane of the spermatozoa, where a protein called the complement regulator membrane cofactor protein (MCP) is expressed. MCP is an immune regulatory molecule and its presence in reproductive tissues was unclear.

21 Apr 2005

Researchers find promising cancer-fighting power of synthetic cell-signaling molecule

Novel anti-cancer compounds called Enigmols suppress the growth of human cell lines representing cancers of the prostate, breast, colon, ovary, pancreas, brain and blood, and reduce tumors in three animal studies, new research shows.

19 Apr 2005

Researchers determine structure of binding site of colon-cancer drug Erbitux and its protein target

Researchers at the University of Pennsylvania School of Medicine have determined the precise molecular details of how Erbitux, a recently approved colorectal cancer drug, binds to its target on cancer cells. Knowing this chemical configuration will lead to better drug design for this family of cancer medications.

19 Apr 2005

Scientists use transcription factors to increase insulin production in diabetic mice

A group of Japanese scientists has used gene therapy to deliver three insulin transcription factors, MafA, PDX-1, and NeuroD, to the livers of diabetic mice. As a result, the mice experienced an increase in insulin gene expression and insulin production, raising the possibility that this could eventually be used to treat diabetes.

13 Apr 2005

Researchers and drug giant team up to find cure for CJD

The Medical Research Council's Prion Unit, based at University College London, a leading British research group, is joining forces with drugs giant GlaxoSmithKline (GSK) to develop a cure for the disease Creutzfeldt-Jakob Disease (CJD).

12 Apr 2005

Researchers discover mechanism by which tumours support their own growth

In a recent issue of the American Journal of Pathology, the Bremen researchers report their findings on a signalling molecule called "High Mobility Group Protein B1" (HMGB1). As a signal sent by tumour cells HMGB1 proteins induce sprouting of blood vessels that supply tumours with oxygen, thus promoting tumour growth.

11 Apr 2005

The liver may produce most of the body's good cholesterol

Research in mice suggests that the liver may produce most of the body's "good" cholesterol, an unexpected finding that might one day help scientists develop new treatments to raise levels of this heart-protecting molecule in humans.

10 Apr 2005

Molecule News and Research

Penn researchers demonstrate that a metabolic enzyme works through the tumor-suppressor protein p53 to control cellular replication

Researchers unravel how nature releases the torque built up in DNA at the molecular level

Two-photon imaging gives real-time video of cells in living tissue

Researchers make new advances in determining the structure of all possible DNA sequences

Critical lock and key mechanism found for the assembly of tumor blood vessels

Scientists dramatically slow organ transplant rejection

Little known enzyme ACAT2 appears to be a factor in cardiovascular disease

Clues about the causes of dementia in Huntington's disease

Maxim Pharmaceuticals issued patent for method of identifying therapeutically effective immunosupressive agents

Researchers make gains in understanding antibiotic resistance

Scientists weaponize an antibody to deliver continuous attacks on cancer cells

Discovery may lead to new drugs to prevent sexually transmitted HIV infection

First time video capture of chemical signals that traverse human cells messaging

With a complement, the sperm gets the egg

Researchers find promising cancer-fighting power of synthetic cell-signaling molecule

Researchers determine structure of binding site of colon-cancer drug Erbitux and its protein target

Scientists use transcription factors to increase insulin production in diabetic mice

Researchers and drug giant team up to find cure for CJD

Researchers discover mechanism by which tumours support their own growth

The liver may produce most of the body's good cholesterol

Designing fluidic architecture for scalable diagnostic platforms

Evaluating new approaches for rare disease genomics

Expanding access to NMR with the Fourier 80 Duo

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