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Scientists discover effective target to kill late-stage metastatic prostate cancer cells

Purdue University scientists believe they have found an effective target for killing late-stage, metastatic prostate cancer cells.

29 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

Combination of Afinitor, exemestane reduces risk of breast cancer progression in women

A pivotal Phase III study shows Afinitor (everolimus) tablets plus exemestane, a hormonal therapy, more than doubled the time women lived without tumor growth (progression-free survival; PFS) and significantly reduced the risk of cancer progression by 57% versus exemestane alone in patients with advanced breast cancer.

26 Sep 2011

Breast cancer drug combination could stop cancer “in its tracks”

The results of a new study revealed that treatment for women with HER2-positive breast cancer – an aggressive form of the disease which is diagnosed in 10,000 British women each year – slowed the progression of tumors by 40 per cent compared with conventional drugs. Tests on 137 women showed that the new therapy – called T-DM1 – which combines the drug Herceptin with an antibody drug, instead of with standard chemotherapy, appeared to stop the cancer “in its tracks”.

26 Sep 2011

Drug combo for breast cancer in post-menopausal women shows promise

Combining two drugs in post-menopausal women with a certain type of advanced breast cancer more than doubled the time they lived without their disease getting worse, a new study data showed.

26 Sep 2011

Researchers analyse effects of BPA in an in-vitro culture of ovaries

Researchers at Universitat Aut-noma de Barcelona, in collaboration with the Vall d'Hebron Hospital Fetal Tissue Bank, the Department of Gynaecology and the Research Unit of Paediatric Endocrinology, analysed the effects of Bisphenol A (BPA), a polymer widely used to manufacture plastics, in an in vitro culture of ovaries.

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

FoxM1 protein plays a critical role in development of medulloblastomas

Medulloblastomas constitute the most frequent class of malignant childhood brain tumor. Tumors of this type arise due to the uncontrolled proliferation of immature nerve cells in the developing brain, and there is no targeted treatment available.

20 Sep 2011

UNC-45A protein plays critical role in breast cancer cell division and migration

Researchers have found that a protein linked to cell division and migration and tied to increased cell proliferation in ovarian tumors is also present at high levels in breast cancer specimens and cell lines. The protein, dubbed "UNC-45A," was also determined to be more active in breast cancer cells than in normal breast cells.

16 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

Scientists successfully disrupt function of MYC cancer gene

Dana-Farber Cancer Institute scientists have successfully disrupted the function of a cancer gene involved in the formation of most human tumors by tampering with the gene's "on" switch and growth signals, rather than targeting the gene itself.

12 Sep 2011

Biochemists reveal interaction between tumor suppressor protein and chaperone

Every cell has thousands of proteins whose activity and lifetime must be regulated to control the cellular life cycle from cell division to cell death. The heat shock protein Hsp90 plays a key role in this process. It is a so-called chaperone, a quality controller, as it were. It monitors and controls the quality and activity of many important signal proteins and helps them take on the right form. When the cell is exposed to high stress levels from heat or a lack of oxygen, Hsp90 is produced in larger quantities to shield its partner proteins from damage.

8 Sep 2011

First report of alternative lengthening of telomeres in human cancer subtypes

The first report of the presence of alternative lengthening of telomeres (ALT) in cancers arising from the bladder, cervix, endometrium, esophagus, gallbladder, liver, and lung was published today in The American Journal of Pathology. The presence of ALT in carcinomas can be used as a diagnostic marker and has implications for the development of anti-cancer drug therapies.

3 Sep 2011

Microtubule stability linked to increased sensitivity to paclitaxel

SCIENTISTS have discovered how blocking key cell signalling proteins could help boost the success rate of the tumour-shrinking drug paclitaxel, according to a study published in the journal Cancer Research today.

2 Sep 2011

Chromatin might have another life as direct signaling molecule

Chromatin - the intertwined histone proteins and DNA that make up chromosomes - constantly receives messages that pour in from a cell's intricate signaling networks: Turn that gene on. Stifle that one. But chromatin also talks back, scientists at The University of Texas MD Anderson Cancer Center report today in the journal Cell, issuing orders affecting a protein that has nothing to do with chromatin's central role in gene transcription - the first step in protein formation.

2 Sep 2011

New fertilized cells narrowly avoid degenerating into fatal chaos

Research based at Princeton University has revealed that newly fertilized cells only narrowly avoid degenerating into fatal chaos. At the same time, scientists have discovered that embryos have acquired a mechanism to contain this dangerous instability, a finding that could help biologists unravel other mysteries about the first hours of life.

24 Aug 2011

Drug SLM3 prevents multiplication of tumor cells

Tumors that do not respond to chemotherapy are the target of a cancer therapy that prevents the function of two enzymes in mouse tumor cells, according to Pennsylvania medical researchers.

17 Aug 2011

WSU researcher receives NIH grant to study how chromatin modifiers regulate cell division

The National Institute of General Medical Sciences of the National Institutes of Health recently awarded Lori A. Pile, Ph.D., assistant professor of molecular cell biology in Wayne State University's College of Liberal Arts and Sciences, $1.39 million to research how the alteration of chromatin regulates cellular division and growth.

17 Aug 2011

Research team reports first genetic sequencing of urothelial carcinoma

In an article published online this week in Nature Genetics, a University of Colorado Cancer Center team in partnership with universities in China and Denmark reports the first genetic sequencing of urothelial (transitional) carcinoma, the most prevalent type of bladder cancer.

12 Aug 2011

Insight into how molecular motor proteins save energy

The transport system inside living cells is a well-oiled machine with tiny protein motors hauling chromosomes, neurotransmitters and other vital cargo around the cell. These molecular motors are responsible for a variety of critical transport jobs, but they are not always on the go. They can put themselves into "energy save mode" to conserve cellular fuel and, as a consequence, control what gets moved around the cell, and when.

12 Aug 2011