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Standards in stem cell research

Standards in stem cell research help both scientists and regulators to manage uncertainty and the unknown, according to new research funded by the Economic and Social Research Council. Efforts to standardise practices across different labs is, however, a balancing act where the autonomy of scientists and fragility of living material need to be weighed against the need for comparable data.

17 Jul 2008

Natural substance Argyrin shows promise for new cancer therapies

The effective treatment of many forms of cancer continues to pose a major problem for medicine. Many tumours fail to respond to standard forms of chemotherapy or become resistant to the medication.

8 Jul 2008

GILZ protein may have big role in making more bone and less fat

A small protein may have a big role in helping you make more bone and less fat, researchers say. "The pathways are parallel, and the idea is if you can somehow disrupt the fat production pathway, you will get more bone," says Dr. Xingming Shi, bone biologist at the Medical College of Georgia Institute of Molecular Medicine and Genetics.

1 Jul 2008

Discovery provides hope for patients with pancreatic cancer

This week researchers in the Oregon Health & Science University (OHSU) Oregon Stem Cell Center and the OHSU Digestive Health Center are shining a new ray of hope on patients with pancreatic cancer. They've developed new reagents, or antibodies, that can recognize this often lethal disease. This important discovery may one day lead to earlier detection and treatment.

22 May 2008

Tissue-specific blood stem cell line established from embryonic stem cells

A research team at the Umea Center for Molecular Medicine (UCMM) in Sweden, led by Professor Leif Carlsson, has managed to specifically establish and isolate the tissue-specific stem cell that produces blood cells (blood stem cell) by using genetically modified embryonic stem cells.

28 Apr 2008

MaxCyte introduces large scale transfection technology - accelerates cell-based assay development

MaxCyte has announced the introduction of its ITF Inline Transfection System, a validated platform for preparative transfection, based on unique flow electroporation technology.

21 Apr 2008

Discovery of a critical early player in the path that turns cells to fat

Given that obesity - defined as an excess amount of body fat relative to lean body mass - is a major health concern in the United States and an increasing problem in the developing world, such a fuller understanding of the molecular processes governing fat tissue formation could ultimately hold clinical importance, according to the researchers.

9 Apr 2008

Replacing absent microRNAs could make tumors less invasive, more treatable

One group of small, non-coding RNA molecules could serve as a marker to improve cancer staging and may also be able to convert some advanced tumors to more treatable stages, report a University of Chicago-based research team in the April 1, 2008, issue of the journal Genes & Development.

1 Apr 2008

Wistar Institute shares cell lines

Cell lines developed by scientists at The Wistar Institute in Philadelphia have recently been made available to researchers around the globe through the catalog collection at the Coriell Institute for Medical Research of Camden, N.J.

26 Mar 2008

How is H pylori adhesion to gastric cells associated with MUC1 mucin VNTR size?

The Gram negative bacterium H pylori is involved in the pathogenesis of several gastrointestinal diseases, ultimately leading to gastric carcinoma.

19 Mar 2008

Modified virus vaccine shows promise in mouse model of breast cancer

Researchers have shown that vaccinating mice with a modified form of a virus containing proteins from breast cancer cells can kill large breast cancer tumors and tumors that have spread to the lungs.

17 Mar 2008

Cancer drug allergies

Cancer patients from the Southeastern United States who are treated with the drug cetuximab, known commercially as Erbitux, are far more likely to suffer severe allergic reactions than patients in other regions of the country.

14 Mar 2008

Researchers find cause of severe allergic reaction to cetuximab

Clinicians have been perplexed by the fact that some patients given the drug cetuximab - an immune-based therapy commonly used to treat persons diagnosed with head and neck cancer, or colon cancer - have a severe and rapid adverse reaction to the drug.

13 Mar 2008

Curing cancer with natural products - a case for shamans and herb women?

Not at all, for many chemotherapies to fight cancer applied in modern medicine are natural products or were developed on the basis of natural substances. Thus, taxanes used in prostate and breast cancer treatment are made from yew trees. The popular periwinkle plant, which grows along the ground of many front yards, is the source of vinca alkaloids that are effective, for example, against malignant lymphomas. The modern anti-cancer drugs topotecan and irinotecan are derived from a constituent of the Chinese Happy Tree.

6 Mar 2008

Neural progenitor cells as reservoirs for HIV in the brain

Impaired brain function is a prominent and still unsolved problem in AIDS.

6 Mar 2008

Watery pools in bone marrow key to psoriatic arthritic damage

Researchers have learned more about how a leading drug prevents certain types of arthritis from eating away at bone, according to a study published in the March edition of the Annals of the Rheumatic Diseases.

4 Mar 2008

Preclinical antitumor efficacy evaluation of dendrimer-based methotrexate conjugates

Although a variety of nanoparticles continue to show promise for improving cancer imaging and therapy, regulators and drug developers are concerned that these delivery systems may prove difficult to manufacture on a consistent basis, which is key for any agent designed for use in humans.

3 Mar 2008

Protein that stimulates blood vessel growth worsens ovarian cancer

A protein that stimulates blood vessel growth worsens ovarian cancer, but its production can be stifled by a tiny bit of RNA wrapped in a fatty nanoparticle, a research team led by scientists at The University of Texas M. D. Anderson Cancer Center reports in the Journal of the National Cancer Institute.

27 Feb 2008

Stem cell therapy studies for stroke, cerebral palsy prepare for clinical trials

Finding answers about optimal dosage and timing for stem cell therapy in adults with strokes and newborns with ischemic injuries is a goal of two new federally funded studies.

31 Jan 2008

Genetic evolution of tumours according to their growth dynamics.

A study co-directed by the Universidad Complutense de Madrid and La Paz hospital in Madrid identifies a protein of high expression in cells located at the tumour boundary that could play an essential role in the evolution of tumours and their invasive potential.

11 Jan 2008