Signaling Pathway News and Research

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Study describes the first known mutation to occur in lung cancer patients who have never smoked

Lung cancer patients who have never smoked are more likely than smokers to harbor one of two genetic mutations that researchers at UT Southwestern Medical Center have now linked to the disease.

1 Mar 2005

Scientists gain new insight into DiGeorge syndrome

A collaboration of European scientists has uncovered new insight into the most common chromosomal microdeletion syndrome in humans.

28 Feb 2005

Studies reveal methods viruses use to sidestep immune system

A series of studies by researchers at UT Southwestern Medical Center sheds light on the mechanisms used by viruses to thwart a host's immune defenses and may aid in the development of more effective drugs to fight hepatitis C and West Nile viruses, as well as the flu and the common cold.

17 Feb 2005

Green tea extract has potential as an anti-cancer agent

A new study on bladder cancer cells lines shows that green tea extract has potential as an anti-cancer agent, proving for the first time that it is able to target cancer cells while leaving healthy cells alone.

15 Feb 2005

Anti-seizure drugs slow aging in roundworms

Researchers at Washington University School of Medicine in St. Louis have discovered that a class of anti-seizure medications slows the rate of aging in roundworms. The worms, when exposed to drugs used to treat epilepsy in humans, lived longer and retained youthful functions longer than normal.

17 Jan 2005

Discovery offers promise for treatment of age-related hearing loss

Researchers have discovered that deletion of a specific gene permits the proliferation of new hair cells in the cochlea of the inner ear -- a finding that offers promise for treatment of age-related hearing loss. This type of hearing loss is caused by aging, disease, certain drugs, and the cacophony of modern life. It is the most common cause of hearing loss in older people.

13 Jan 2005

Evaluation of BAY 43-9006 (Sorafenib) for pancreatic cancer

Oncologists from USC/Norris Comprehensive Cancer Center are running tests on a new pancreatic cancer drug that targets the cancer from two directions.

13 Jan 2005

Scientists identify genes that promote the growth and recurrence of skin cancer

Andrzej Dlugosz, M.D., a professor of dermatology in the U-M Medical School, and colleagues at the University of Michigan and the National Cancer Institute examined the functions of the Hedgehog (Hh) signaling pathway in basal cell carcinoma – the most common form of cancer – and uncovered a subset of tumor cells that were resistant to inhibition of the Hedgehog pathway.

10 Jan 2005

Direct modulation of progesterone signaling appears to influence ovarian cancer risk

A woman's risk of ovarian cancer rises significantly if she carries either of two previously unexamined variations in the gene that codes for the progesterone receptor, according to a team of researchers led by scientists from the Keck School of Medicine of the University of Southern California.

5 Jan 2005

Signaling molecule involved in osteoarthritis identified

Using naturally-occurring mutant mice with a defective collagen gene, scientists at Harvard have identified a signaling molecule involved in one of the most common causes of disability among the elderly in the United States, osteoarthritis.

4 Jan 2005

Scientists have identified genes that promote the growth and recurrence of skin cancer

Dr. Andrzej Dlugosz and colleagues at the University of Michigan and the National Cancer Institute have examined the functions of the Hedgehog (Hh) signaling pathway in basal cell carcinoma, the most common form of cancer, and have uncovered a subset of tumor cells that are resistant to inhibition of the Hh pathway.

28 Dec 2004

Ubiquitination protects against improper Notch signaling

The Notch pathway is an important molecular signaling mechanism whose existence has been known, or at least hinted at, for nearly a century since the identification of a mutant strain of Drosophila fruit flies with "notched" wings in Thomas Hunt Morgan's lab in 1910.

28 Dec 2004

New findings clarify the role of NOD2, a key molecular player in Crohn's Disease

This week, researchers report new findings that clarify the role of NOD2, a key molecular player in Crohn's Disease, in the cellular signaling pathways that control inflammatory responses. NOD2's clinical relevance is clear from the fact that it is encoded by a Crohn's Disease susceptibility gene.

28 Dec 2004

Why hair turns grey

Few things about growing older are as inevitable and obvious as "going gray," yet scientists have been unable to explain the precise cause of this usually unwelcome transformation.

23 Dec 2004

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

High levels of a protein called LRP6 can make cancer cells more aggressive

The protein's ability to enhance tumor development suggests that the gene that codes for LRP6 is an oncogene--a gene that contributes to tumor development when overactivated.

25 Oct 2004

Potential new protein marker for prognosis of breast and ovarian cancer

The researchers matched tumor samples to outcomes in about 100 patients diagnosed with either breast or ovarian cancer and found that a low level of Rab25 protein on a patient's cancer sample was associated with a better clinical outcome in both cancer types.

24 Oct 2004

Brain protein called MC4R that plays a role in the urge to eat has now been found to influence appetite in a second way

A brain protein already known to play a central role in the "feast or fast" signaling that controls the urge to eat has now been found to influence appetite in a second way. The discovery identifies a potential new target for drugs against obesity.

19 Oct 2004

Discovery of fundamental mechanism within cells that link obesity and type 2 diabetes

Researchers from the Harvard School of Public Health have discovered what they believe is the fundamental mechanism within cells that links two fast-rising public health threats: obesity and Type 2 diabetes.

18 Oct 2004

Signaling pathway could be a valuable target for future drug therapies against systemic lupus erythematosus

Medical investigators at the Hospital for Special Surgery have identified an important new signaling pathway they believe could be a valuable target for scientists to aim at with future drug therapies that might one day reverse diseases such as systemic lupus erythematosus, according to a recent article published in “Nature Immunology.”

11 Oct 2004

Signaling Pathway News and Research

Study describes the first known mutation to occur in lung cancer patients who have never smoked

Scientists gain new insight into DiGeorge syndrome

Studies reveal methods viruses use to sidestep immune system

Green tea extract has potential as an anti-cancer agent

Anti-seizure drugs slow aging in roundworms

Discovery offers promise for treatment of age-related hearing loss

Evaluation of BAY 43-9006 (Sorafenib) for pancreatic cancer

Scientists identify genes that promote the growth and recurrence of skin cancer

Direct modulation of progesterone signaling appears to influence ovarian cancer risk

Signaling molecule involved in osteoarthritis identified

Scientists have identified genes that promote the growth and recurrence of skin cancer

Ubiquitination protects against improper Notch signaling

New findings clarify the role of NOD2, a key molecular player in Crohn's Disease

Why hair turns grey

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

High levels of a protein called LRP6 can make cancer cells more aggressive

Potential new protein marker for prognosis of breast and ovarian cancer

Brain protein called MC4R that plays a role in the urge to eat has now been found to influence appetite in a second way

Discovery of fundamental mechanism within cells that link obesity and type 2 diabetes

Signaling pathway could be a valuable target for future drug therapies against systemic lupus erythematosus

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