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Three different leukemias are all caused by mutations that alter a specific enzyme controlling blood cell proliferation

Identifying the genetic malfunction that causes these disorders raises the hope that researchers may be able to devise a targeted therapy, just as they have done for chronic myelogenous leukemia (CML), which is presently treated with Gleevec. The three leukemias that share a common genetic cause are polycythemia vera (PV), essential thrombocythemia (ET) and myeloid metaplasia with myelofibrosis (MMM).

28 Mar 2005

Scientists provide insight into the molecular mechanisms behind Listeria monocytogenes

When the bacterium Listeria monocytogenes invades the body, it commandeers its host cell's actin cytoskeleton to invade other cells. In a report published in the Journal of Biological Chemistry, a group of scientists provide insight into the molecular mechanisms behind this infection technique.

21 Mar 2005

Molecule called DJ-1 is likely to be involved in the generation of human tumors

Scientists have discovered that a molecule called DJ-1 is likely to be involved in the generation of human tumors through negative regulation of the well-known tumor suppressor, PTEN. The research, published in the March issue of Cancer Cell, has important implications for determining the prognosis of some human cancers, and may prove to be a suitable target for cancer therapy.

14 Mar 2005

ViroLogic and AstraZeneca to conduct Iressa biomarker study

ViroLogic announced today that it had entered into an agreement with AstraZeneca to conduct a cancer biomarker study with application to Iressa, AstraZeneca's selective epidermal growth factor receptor kinase inhibitor.

7 Mar 2005

Novel role for cholesterol inside the cell

Cholesterol, often condemned for its role in heart disease, has always been known to be essential for the health of the fatty membranes that surround individual cells.

7 Mar 2005

Good side to cholesterol in controlling cell signals

Cholesterol, often stigmatized for its role in heart disease, has long been known to be essential for the health of the fat-laden membranes that surround individual cells.

6 Mar 2005

Discovery gives clinicians new targets for making existing therapies more effective and developing drugs to inhibit the growth of cancers

A team of researchers at the University of Alberta in Edmonton and the Samuel Lunenfeld Research Institute in Toronto have discovered how a key enzyme involved in repairing DNA is put together and how it works--a development that opens up new therapies for making cancer cells more vulnerable to attack.

3 Mar 2005

Novel mutation in the recently identified LRRK2 gene causes parkinsonism

Neuroscientists at Mayo Clinic in Jacksonville, Fla., leading a team of researchers in the United States and Europe, have discovered that a novel mutation in the recently identified LRRK2 gene causes parkinsonism in several North American and European families.

27 Feb 2005

New compound, AMN107, 20 times more potent than Gleevec for chronic myelogenous leukemia treatment

A laboratory study led by researchers at Dana-Farber Cancer Institute has shown that a potent and highly selective therapy for chronic myelogenous leukemia (CML) may ultimately be more effective than Gleevec®, the current standard of care.

21 Feb 2005

New compound AMN107 may help treat some imatinib resistant cancer cases

As scientists uncover the precise molecular mechanisms that underlie effective cancer treatments, they gain invaluable insight into why predominantly successful treatments fail for some patients.

14 Feb 2005

Special imaging study shows failing hearts are energy starved

Using magnetic resonance spectroscopy (MRS) for the first time to examine energy production biochemistry in a beating human heart, Johns Hopkins researchers have found substantial energy deficits in failing hearts.

7 Feb 2005

Plant protein mimics hormone that mitigates diabetes and obesity

A common protein that protects plants from fungal infection mimics the activity of a hormone in mammals that is linked to weight loss and is believed to play a role in mitigating heart disease, obesity and diabetes, according to a team of researchers at Purdue University and several collaborating institutions.

25 Jan 2005

Cellular fuel gauge could hold clue to diabetes

A molecule in the body could hold the key to explaining why people who exercise regularly are less likely to have illnesses such as type 2 diabetes.

19 Jan 2005

How do you remember your own name?

How do you remember your own name? Is it possible ever to forget it? The memory trace, or engram, "feels" like it is stored permanently in the brain and it will never be forgotten.

16 Jan 2005

Potential new therapies for cancer and bleeding disorders

Lexicon Genetics announced today that it has advanced two of its drug discovery programs into preclinical development in preparation for investigational new drug (IND) applications.

10 Jan 2005

Importance of the phosphatidylinositol 3 kinase (PI3K) pathway to breast cancer development

Because up to 75 percent of breast cancer patients have an abnormality in a specific cell signaling pathway, drugs that target different molecules along that pathway may be especially effective for treating the disease, says a researcher from The University of Texas M. D. Anderson Cancer Center.

13 Dec 2004

Common ingredient in some shampoos (methylisothiazolinone) stunts developing neurons of rats

An antimicrobial agent found in some shampoos and hand creams and widely used in industrial settings inhibits the development of particular neuron structures that are essential for transmitting signals between cells.

6 Dec 2004

New drug can successfully treat patients who have become resistant to Gleevec

A team of prominent researchers led by Charles Sawyers, M.D. and Moshe Talpaz, M.D., presented compelling clinical findings today showing that a new drug, BMS-354825, can successfully treat patients who have become resistant to Gleevec (the frontline therapy for chronic myelogenous leukemia, CML).

5 Dec 2004

New research may lead to treatments for atherosclerosis

Scientists are one step closer to deciphering the molecular signaling process controlling innate immunity with the discovery that a molecule called IRAK1 regulates the expression of the anti-inflammatory cytokine IL-10. Because atherosclerosis patients often have elevated IL-10 levels, IRAK1 may be a viable target for developing therapeutics for atherosclerosis.

29 Nov 2004

Scientists have determined the crystal structure of a protein kinase C (PKC) isozyme

This structure should prove extremely useful in the rational design of small molecule inhibitors of PKCÈ, which has been implicated in T-cell mediated disease processes including inflammation and autoimmunity.

19 Nov 2004