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Ethically universal stem cell lines

Human embryonic stem cells (hESC), those very young cells that are a biological blank slate, have the potential to become more specialized, contributing to the workings of a wide variety of organs and tissues.

8 Jun 2007

Combination therapy reduces tumor resistance to radiation

Radiation is used to treat a variety of tumors and the response of tumors to radiation is dependent on endothelial cell death, which in turn limits oxygen delivery to the tumor, causing hypoxia and tumor cell death.

8 Jun 2007

Blocking the action of beta1-integrin to treat cancer

Targeting the function of a protein known as beta1-integrin might represent a novel approach to cancer treatment, according to a paper published online in the EMBO Journal.

8 Jun 2007

Reprogrammed fibroblasts resemble embryonic stem cells

Stem cell biology takes another exciting leap forward as scientists report that normal tissue cells can be reprogrammed to exhibit many of the properties that are characteristic of embryonic stem cells, including the ability to give rise to multiple cell types and contribute to the germline.

8 Jun 2007

Aging stem cells in mice may hold answers to diseases of the aged

As stem cells in the blood grow older, genetic mutations accumulate that could be at the root of blood diseases that strike people as they age, according to work done in mice by researchers at the Stanford University School of Medicine.

8 Jun 2007

Researchers find stem cells in colorectal tumors

Researchers at the Stanford University School of Medicine have identified the cancer stem cells that propagate tumors in colon and rectal cancer, a discovery that could lead to improved treatment of this deadly cancer.

5 Jun 2007

Researchers track how spores break out of dormant state

Tapping into the unknown world of awakening dormant bacterial spores, researchers have revealed through atomic force microscopy (AFM) the alterations of spore coat and germ cell wall that accompany the transformation from a spore to a vegetative cell.

5 Jun 2007

Researchers track human stem cells transplanted into rat brain

Researchers at the Stanford University School of Medicine have illuminated the path taken by human neural stem cells that were transplanted into the brains of rats and mice, and found that the cells successfully navigate toward areas damaged by stroke.

5 Jun 2007

Blocking stress protein decreases Alzheimer's peptide

Scientists revealed in November 2006 that stress increases production in mice of a brain peptide critical to Alzheimer's disease.

5 Jun 2007

Vorinostat shows anti-cancer activity in recurrent gliomas

North Central Cancer Treatment Group (NCCTG) researchers, based at Mayo Clinic in Rochester, Minn., report that a novel application of the drug vorinostat shows activity in patients with recurrent glioblastoma multiforme.

5 Jun 2007

Tumor cell activity may provide clues for treating breast cancer in young women

When women under 50 develop breast cancer the disease tends to be more aggressive and less responsive to treatment than when it occurs in older women.

5 Jun 2007

Circulating tumor cells predict how prostate cancer patients do with chemotherapy

The number of tumor cells circulating in the bloodstream of patients with metastatic, hormone-resistant, prostate cancer can predict how they will do with chemotherapy, according to results of an international trial.

5 Jun 2007

Revlimid may change the way physicians treat multiple myeloma

Findings from a Phase III study by the Eastern Cooperative Oncology Group (ECOG 4A03) were presented yesterday at the American Society of Clinical Oncology (ASCO) meeting in Chicago and demonstrate the benefits of using Revlimid (lenalidomide) with reduced doses of the steroid dexamethasone.

5 Jun 2007

Results of phase II studies of pazopanib

GlaxoSmithKline (GSK) has announced results from ongoing Phase II studies of pazopanib in advanced or metastatic renal cell carcinoma (RCC) and ovarian cancer.

5 Jun 2007

Gene therapy delivery of nerve growth factors reverses erectile dysfunction in mice

Rats with erectile dysfunction, or ED, that were injected with a gene therapy vector containing either of two nerve growth factors were able to regain normal function after four weeks, according to a study conducted by University of Pittsburgh School of Medicine researchers.

5 Jun 2007

Stroke victims could be more vulnerable to Alzheimer's

University of Leeds scientists have shown how stroke victims could be more vulnerable to Alzheimer's disease – years or even decades after making a full recovery.

5 Jun 2007

When to change the course of treatment

Counting circulating tumor cells before and after the start of treatment for patients with metastatic colorectal cancer could help doctors determine when or if a change in treatment should be made.

5 Jun 2007

Predicting treatment responses earlier for brain tumor patients

Using metabolic or molecular imaging to measure brain tumor patients' response to treatment is a powerful predictor of survival, notes a first-of-its-kind study presented at the 54th Annual Meeting of SNM, the world's largest society for molecular imaging and nuclear medicine professionals.

5 Jun 2007

Percutaneous ethanol injection helps manage bone metastasis in thyroid cancer patients

Percutaneous ethanol injection (PEI), an injection of ethanol (alcohol) through the skin directly into a bone tumor to kill cancer cells, may be a valuable ancillary treatment for thyroid cancer patients whose cancer has spread to the bone.

5 Jun 2007

Diagnosing skin cancers with laser-based system

In an early step toward nonsurgical screening for malignant skin cancers, Duke University chemists have demonstrated a laser-based system that can capture three-dimensional images of the chemical and structural changes under way beneath the surface of human skin.

5 Jun 2007