Gene Expression News and Research

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Gene Expression is the process by which a gene gets turned on in a cell to make RNA and proteins. Gene expression may be measured by looking at the RNA, or the protein made from the RNA, or what the protein does in a cell.

Smad proteins regulate microRNA processing

Researchers at Tufts University School of Medicine and Tufts Medical Center have found that Smad proteins regulate microRNA (miRNA) processing.

11 Jun 2008

Addicted cells provide early cancer diagnosis

Scientists at the Institute of Food Research have detected subtle changes that may make the bowel more vulnerable to the development of tumours.

10 Jun 2008

New molecular mechanism for colorectal cancer

Scientists in Portugal just found a new molecular mechanism behind colorectal cancer in which a mutated and a normal, but over-expressed, gene cooperate and are both needed to create the disease.

4 Jun 2008

More evidence red wine keep hearts young

How, scientists wonder, do the French get away with a clean bill of heart health despite a diet loaded with saturated fats?

3 Jun 2008

New clues for nerve cell repair

A new study at the Montreal Neurological Institute at McGill University identifies a key mechanism for the normal development of motor nerve cells (motor neurons) - cells that control muscles. This finding is crucial to understanding and treating a range of conditions involving nerve cell loss or damage, from spinal cord injury to neurodegenerative diseases such as ALS, also known as Lou Gehrig's disease.

3 Jun 2008

Mouse ovaries and testes age in unique ways

Aging leads to large changes in gene activity in the ovaries of mice, but only limited changes in testes, according to research published in the open-access journal, BMC Biology.

2 Jun 2008

BiPar Sciences presents data for novel DNA repair inhibitor

BiPar Sciences, Inc. today announced the results of first-in-human clinical studies of its lead product, BSI-201, in patients with solid tumors.

2 Jun 2008

How advanced prostate cancer becomes resistant to androgen-deprivation therapy

For the past 70 years the treatment of choice for advanced, metastatic prostate cancer has been androgen-deprivation therapy. That is, the suppression of circulating testosterone - the hormone that fuels prostate-cancer growth - via surgical castration (orchiectomy) or medical castration with testosterone-blocking drugs. While such therapy buys time for patients, it is not a cure, as inevitably the cancer becomes resistant to the androgen deprivation and continues to grow.

2 Jun 2008

Tumor suppressor genes speed up and slow down aging in engineered mouse

Mayo Clinic researchers have developed an animal model that can test the function of two prominent tumor suppressor genes, p16 and p19, in the aging process. Scientists knew that both these genes were expressed at increased levels as humans and mice age, but their role in the aging process was not clear. Findings by the Mayo team show that p16 provides gas to accelerate cellular aging, while p19 stops that process.

1 Jun 2008

How advanced prostate cancer becomes resistant to androgen-deprivation therapy

1 Jun 2008

Rett syndrome gene found to be full of surprises

A study funded by the National Institutes of Health (NIH) has transformed scientists' understanding of Rett syndrome, a genetic disorder that causes autistic behavior and other disabling symptoms. Until now, scientists thought that the gene behind Rett syndrome was an "off" switch, or repressor, for other genes. But the new study, published today in Science, shows that it is an "on" switch for a startlingly large number of genes.

29 May 2008

Estrogen drives distinct, aggressive prostate cancer

Using a breakthrough technology, researchers led by a Weill Cornell Medical College scientist have pinpointed the hormone estrogen as a key player in about half of all prostate cancers.

28 May 2008

The emerging role of infection in Alzheimer’s

A number of chronic diseases are in fact caused by one or more infectious agents. For example, stomach ulcers are caused by Helicobacter pylori, chronic lung disease in newborns and chronic asthma in adults are both caused by Mycoplasmas and Chlamydia pneumonia, while some other pathogens have been associated with atherosclerosis. The realization that pathogens can produce slowly progressive chronic diseases has opened new lines of research into Alzheimer's disease.

25 May 2008

RTOG study likely treatment option for brain tumor patients like Sen. Kennedy

A Radiation Therapy Oncology Group (RTOG) study which seeks to establish whether high-doses of the chemotherapy drug temozolomide after radiotherapy can improve outcome for patients with newly diagnosed malignant glioma is a possible consideration for Sen. Edward Kennedy (D-Mass.) and other patients with this type of brain tumor.

22 May 2008

Fluorescent 'barcodes' called nanostrings could revolutionise diagnostics

A new technology with research and clinical application including the early detection of disease has been invented and developed by University of Queensland researchers.

From NanoString Technologies 22 May 2008

NCI scientists visualize gene regulation in living cells

A research team led by scientists at the National Cancer Institute (NCI), part of the National Institutes of Health (NIH), has applied advanced imaging methods and computer simulations to be able to glance at the regulation of a cancer-related gene in a living cell. They found that the efficiency with which the components of the cell's gene reading machinery come together has an impact on gene expression, the process by which a gene translates its information into a new protein. The findings, published in the May 23, 2008 issue of Molecular Cell, shed new light on the means by which living cells regulate gene activity.

22 May 2008

Unique genetic signature alerts physicians to high-risk breast tumors

A unique genetic signature can alert physicians to high-risk breast tumors that are masquerading as low-risk tumors, according to research at Washington University School of Medicine in St. Louis and collaborating institutions. Although these tumors are apparently estrogen-receptor positive - meaning they should depend on estrogen to grow - they don't respond well to anti-estrogen therapy.

21 May 2008

Boost for cancer research in Leicestershire

A new approach to pain relief, investigation of a gene that triggers colorectal cancer and the prevention, early diagnosis and treatment of ovarian cancer are three research projects at the University of Leicester, which are to benefit from funding from the Leicestershire and Rutland charity Hope Against Cancer.

21 May 2008

Primate model for autism

A primate model for autism using the U.S. children's immunization schedule was unveiled at the International Meeting For Autism Research (IMFAR) this weekend.

20 May 2008

Mapping of prostate cancer genes opens the door to new treatments

Genetic changes during the initiation and progression of prostate cancer have eluded scientists to date. Now for the first time researchers have identified a specific gene expression profile of prostate cancer stem cells, with important implications for future treatments.

19 May 2008