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.

Researchers uncover unexpected role of estrogen receptors in brain inflammation

Researchers have uncovered an unexpected role for estrogen receptors in the brain in keeping inflammation under control. The findings reported in the May 13 issue of the Cell Press journal Cell may have important implications for the treatment of multiple sclerosis (MS) and many other neurodegenerative diseases.

13 May 2011

New computational model can analyze living cells, social networks

At first glance, a diagram of the complex network of genes that regulate cellular metabolism might seem hopelessly complex, and efforts to control such a system futile. However, an MIT researcher has come up with a new computational model that can analyze any type of complex network - biological, social or electronic - and reveal the critical points that can be used to control the entire system.

13 May 2011

Salmonella enterica bacterium activates virulence genes through Fur protein

Salmonella enterica, one of the main causes of gastrointestinal infections, modulates its virulence gene expression, adapting it to each stage of the infection process, depending on the free iron concentration found in the intestinal epithelium of its host.

12 May 2011

Women with invasive breast cancer can benefit from new genomic test

A new genomic test combining multiple signatures - a patient's estrogen receptor status, endocrine therapy response, chemotherapy resistance and sensitivity - shows promise as a predictor of chemotherapy response and survival benefit in women with invasive breast cancer, according to research led by The University of Texas MD Anderson Cancer Center.

11 May 2011

Fluidigm announces availability of genetic assays and primers for integrated fluidic circuit technology

Fluidigm Corporation today announced the availability of assays and primers optimized for the company's integrated fluidic circuit technology.

10 May 2011

'Healthy' smokers have gene expression profiles similar to COPD patients

'Healthy' smokers experience changes in the gene expression of their lungs similar to that suffered by smokers who have developed Chronic Obstructive Pulmonary Disease (COPD). This is the conclusion of a new study, led by Catalan researchers, which confirms the crucial role that smoking plays in causing these alterations.

10 May 2011

FDA clears Affymetrix's new gene profiling reagents for use in microarray instrument system

Affymetrix, Inc. today announced that the U.S. Food and Drug Administration has cleared the addition of new gene expression reagents as accessories to its GeneChip Microarray Instrument System for in vitro diagnostic use, making Affymetrix the first in the industry to provide a comprehensive microarray-based clinical toolkit for diagnostic test development, signature discovery for companion diagnostics, and translational initiatives. Affymetrix Gene Profiling Reagents offer unparalleled convenience by simplifying assay workflow, decreasing hands-on time, and reducing quality control testing compared to research-use-only-produced products.

9 May 2011

Researchers analyze gene expression profiles to understand molecular mechanisms behind various diseases

Over the past decades, researchers seeking to understand molecular mechanisms underlying various diseases, notably cancer, have taken advantage of DNA microarrays to interrogate tissues specimen of patients for the expression status of thousands of genes at once.

9 May 2011

Current Opinion in Immunology journal publishes Inovio's article on DNA vaccines

Inovio Pharmaceuticals, Inc., a leader in the development of therapeutic and preventive vaccines against cancers and infectious diseases, announced today that the prestigious journal Current Opinion in Immunology has published an article in its current issue entitled, "Electroporation Delivery of DNA Vaccines: Prospects for Success."

7 May 2011

Breast cancer cells utilize tissue stem cell EMT for tumor metastasis

Researchers at the University of North Carolina at Chapel Hill School of Medicine, after isolating normal stem cells that form the developing placenta, have given them the same properties of stem cells associated with an aggressive type of breast cancer.

7 May 2011

Researchers find temperature-sensing protein in immune cells

Researchers at The Scripps Research Institute have found a temperature-sensing protein within immune cells that, when tripped, allows calcium to pour in and activate an immune response.

7 May 2011

UT Southwestern researcher measures estrogen's effect on breast cancer cells

A UT Southwestern Medical Center researcher has identified the most comprehensive measurement to date of estrogen's effect on breast cancer cells, showing for the first time how immediate and extensive the effect is.

6 May 2011

Researchers identify unexpected triple-negative breast cancer marker

German researchers have identified an unexpected molecular marker that predicts how sensitive hard-to-treat triple-negative breast cancers are to chemotherapy.

5 May 2011

Genome epigenetic analysis reveals new ways to detect and treat breast cancer

The most comprehensive analysis yet of the epigenetic modifications present in breast cancer has revealed potentially important new ways to detect and treat the disease, Belgian researchers have reported.

5 May 2011

Clinical study: Celecoxib drug may treat breast cancer

The anti-inflammatory drug celecoxib may be a useful additional treatment for people with breast cancer, Dutch researchers report at the IMPAKT Breast Cancer Conference in Brussels.

5 May 2011

ChipDX identifies gene expression signature in early-stage breast tumors

ChipDX LLC, a New York-based molecular diagnostics and personalized medicine research company, has discovered a gene expression signature present in the cells of early-stage breast tumors that indicates the chance of the tumor recurring within 10 years.

4 May 2011

Abnormal clock gene coordination observed in tissues of Alzheimer's patients

Twenty-four hour cycles, known as circadian rhythms, are important for proper body functions, including for normal brain function and mental health. Disruptions of circadian rhythms and sleep-wake cycles have been observed in patients with Alzheimer's disease. A new study by Douglas Institute researchers unravels a possible basis for these perturbations.

28 Apr 2011

Affymetrix reports total revenue of $73.7 million for first quarter 2011

Affymetrix, Inc., today reported its operating results for the first quarter of 2011. Total revenue for the quarter was $73.7 million, as compared to total revenue of $80.2 million in the first quarter of 2010.

28 Apr 2011

Nationwide researchers to launch Oncotype DX test phase III trial in breast cancer

Cancer researchers at hundreds of sites nationwide are about to launch a SWOG-led clinical trial that could keep thousands of breast cancer patients from getting chemotherapy that is unlikely to do them any good.

27 Apr 2011

Study finds gender difference in immune responses to PTSD

Men and women had starkly different immune system responses to chronic post-traumatic stress disorder, with men showing no response and women showing a strong response, in two studies by researchers at the San Francisco VA Medical Center and the University of California, San Francisco.

27 Apr 2011