Signaling Pathway News and Research

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Researchers identify compound that inhibits viral replication

Broad-spectrum antibiotics, which are active against a whole range of bacterial pathogens, have been on the market for a long time. Comparably versatile drugs to treat viral diseases, on the other hand, have remained elusive. Using a new approach, research teams led by Dr. Albrecht von Brunn of LMU Munich and Professor Christian Drosten from the University of Bonn have identified a compound that inhibits the replication of several different viruses, including the highly aggressive SARS virus that is responsible for severe acute respiratory syndrome.

29 Oct 2011

Scientists describe how protein acts as courier in cell signaling pathways

Normal development, from fertilized egg to adult organism, depends on each cell receiving proper instructions from its environment. In response to such incoming information, receptors on a cell's surface send signals to the nucleus that tweak gene expression and control cellular function.

28 Oct 2011

RA drug reduces kidney cyst growth in ADPKD mouse model

Scientists at UC Santa Barbara have discovered that patients with an inherited kidney disease may be helped by a drug that is currently available for other uses.

28 Oct 2011

Small molecule selectively blocks gene activity regulated by thyroid hormone

A small molecule developed at St. Jude Children's Research Hospital advances progress toward more tailored drugs in research that also offers insight into the biology of thyroid hormone.

22 Oct 2011

Researchers identify cancer cell cycle-regulated mechanism

Researchers from the NYU Cancer Institute, an NCI-designated cancer center at NYU Langone Medical Center, have identified a cell cycle-regulated mechanism behind the transformation of normal cells into cancerous cells.

22 Oct 2011

Two proteins bind together to ignite and sustain malignant brain tumors

Two previously unassociated proteins known to be overly active in a variety of cancers bind together to ignite and sustain malignant brain tumors, a research team led by scientists at The University of Texas MD Anderson Cancer Center reports this week in the journal Cancer Cell.

22 Oct 2011

Preclinical data from Teva's COPAXONE study on multiple sclerosis

Teva Pharmaceutical Industries Ltd. today announced preclinical data demonstrating reparative and neuroprotective effects of treatment with COPAXONE (glatiramer acetate injection) in experimental autoimmune encephalomyelitis (EAE) models.

21 Oct 2011

Scientists identify genes that act in muscles to modulate aging and resistance to stress

Researchers at Emory University School of Medicine have identified a set of genes that act in muscles to modulate aging and resistance to stress in fruit flies.

18 Oct 2011

RAZCER (Rapid Astrazeneca and CARO Evaluation of Radio-modifiers) awards announced - five Canadians win

Five leading Canadian radiation oncologists receive RAZCER Awards of $22,727 each for novel studies of radiation-drug interactions that have the potential to either protect normal tissues or sensitize tumours, and thus to enhance the effectiveness of radiation therapy for cancer patients. A selection committee of members of the Canadian Association of Radiation Oncology (CARO) selected the 2011 recipients from among a field of 12 applicants. Astrazeneca provides the funds for the RAZCER Award as an educational grant.

13 Oct 2011

NCCN Oncology Research Program wins two GSK grants

The National Comprehensive Cancer Network Oncology Research Program (ORP) has been awarded $4 million in the form of two research grants from GlaxoSmithKline (GSK) to develop studies to scientifically evaluate and define GSK2118436, a BRAF inhibitor, and GSK1120212, a MEK1 and MEK2 inhibitor. Previous research has indicated that BRAF mutations are strong targets for therapies in the treatment of advanced melanoma.

12 Oct 2011

Receptor tyrosine kinases control PI3K signaling in human KRAS mutant colorectal cancers

Some cancers can be effectively treated with drugs inhibiting proteins known as receptor tyrosine kinases, but not those cancers caused by mutations in the KRAS gene. A team of researchers led by Jeffrey Engelman, at Massachusetts General Hospital Cancer Center, Boston, has now identified a potential way to effectively use receptor tyrosine kinases inhibitors to treat individuals with KRAS mutant colorectal cancers - combine them with inhibitors of the MEK/ERK signaling pathway.

11 Oct 2011

New targeting approach to develop an active site-directed, drug-like PTP1B inhibitor

The work of a team of scientists at Cold Spring Harbor Laboratory (CSHL) led by Professor Nicholas Tonks FRS, suggests a way to overcome one of the major technical obstacles preventing a leading therapeutic target for diabetes and obesity from being addressed successfully by novel drugs.

30 Sep 2011

Lin28/let-7 pathway plays an unexpected key role in type 2 diabetes

A pathway activated in cancer plays an unexpected key role in metabolic diseases like type 2 diabetes, according to a study by researchers at Children's Hospital Boston. Evidence that the Lin28/let-7 pathway influences the cellular response to glucose provides a unifying theme to perplexing data that associates human genetic variation with diabetes risk.

30 Sep 2011

Three papers reveal structure and workings of G protein-coupled receptors

Three international teams of scientists, led by researchers at the University of California San Diego, University of Michigan and Stanford University, have published a trio of papers describing in unprecedented detail the structure and workings of G protein-coupled receptors (GPCRs), a large family of human proteins that are the target of one-third to one-half of modern drugs.

29 Sep 2011

Lead compound activates infection-fighting REDD1 protein and kills flu strain

A compound tested by UT Southwestern Medical Center investigators destroys several viruses, including the deadly Spanish flu that killed an estimated 30 million people in the worldwide pandemic of 1918.

27 Sep 2011

Afinitor Phase III study on angiomyolipomas associated with TSC meets primary endpoint

A Phase III study of Afinitor (everolimus) tablets in patients with non-cancerous kidney tumors, or angiomyolipomas, associated with tuberous sclerosis complex (TSC) met its primary endpoint of best overall angiomyolipoma response rate, which includes reduction in kidney tumor size and absence of new tumors.

26 Sep 2011

Wnt signaling pathway plays an important role in early-onset dementia

No cure exists for frontotemporal dementia, which strikes between the ages of 40 and 64 and accounts for at least one in four cases of early-onset dementia. Caused by the death of cells in the front and sides of the brain, the disease can lead to dramatic changes in a patient's personality and behavior, including the loss of the ability to communicate.

22 Sep 2011

Study reveals possible new treatment targets for diffuse intrinsic pontine gliomas

Study led by St. Jude Children's Research Hospital scientists points to possible new treatment targets for diffuse intrinsic pontine gliomas; may tip the scales in the current debate about tumor biopsies.

21 Sep 2011

Researchers identify promising new therapies for ependymoma

Researchers have identified promising new therapies for ependymoma, a rare tumor with few treatment options. St. Jude Children's Research Hospital investigators led the effort, which used a new, faster drug development system that combines the latest drug screening technology with the first accurate animal model of the tumor.

16 Sep 2011

Curcumin suppresses cell signaling pathway that drives growth of head and neck cancer

Curcumin, the main component in the spice turmeric, suppresses a cell signaling pathway that drives the growth of head and neck cancer, according to a pilot study using human saliva by researchers at UCLA's Jonsson Comprehensive Cancer Center.

14 Sep 2011