Intracellular News and Research

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Double-duty nanoparticles overcome drug resistance in tumors

Cancer cells, like bacteria, can develop resistance to drug therapy. In fact, research suggests strongly that multidrug resistant cancer cells that remain alive after chemotherapy are responsible for the reappearance of tumors and the poor prognosis for patients whose cancer recurs.

14 Jun 2007

Gamma-secretase acts as a tumor suppressor

Researchers at Burnham Institute for Medical Research (Burnham) have provided the first evidence that gamma-secretase, an enzyme key to the progression of Alzheimer's, acts as a tumor suppressor by altering the pathway of epidermal growth factor receptor (EGFR), a potential treatment target for cancer.

14 Jun 2007

Scientists have captured on video the intracellular version of a postal delivery service

Reporting in the journal Biochemical and Biophysical Research Communications (BBRC), bioengineering researchers at UC San Diego published videos of a key message-carrying protein called paxillin moving abruptly from hubs of communication and transportation activity on the cell surface toward the nucleus.

3 Jun 2007

Discovery of new cellular mechanism behind Lou Gehrig's disease

University of Kentucky researchers have discovered a new cellular mechanism that may better explain what causes amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's Disease.

1 Jun 2007

Immune antibodies penetrate neurons to clear Alzheimer's-linked amyloid

Researchers at Weill Cornell Medical College have gotten much closer to understanding how immune-based therapies can treat Alzheimer's disease -- by studying how antibodies go inside brain cells to reduce levels of Alzheimer's-linked amyloid peptides that form plaques between neurons.

24 May 2007

New understanding of how immune-based therapies can treat Alzheimer's disease

24 May 2007

Researchers map genome for mite-borne typhus

Researches at Uppsala University, in collaboration with a Korean research team, have mapped and analyzed the genome for mite-borne typhus.

10 May 2007

Fluorescent nanoparticles open up new possibilities for cellular imaging

Scientists from the University of Twente, the Netherlands, have successfully exploited the optical properties of fluorescent nanoparticles to broaden the scope of single-cell microscopy.

9 May 2007

Nitric oxide may be the key to why specific drugs for heart failure or asthma lose their effectiveness over time

A naturally occurring molecule in the body appears to control whether certain medications, such as beta adrenergic receptor agonists used in acute heart failure or in inhalers for asthma, lose their effectiveness over time.

4 May 2007

RNA analysis can identify rejection in lung transplant patients

Recent data from the Lung Allograft Rejection Gene expression Observational (LARGO) study provides compelling evidence that profiling gene expression in peripheral blood can detect organ rejection in lung transplant patients.

1 May 2007

Researcher looks at health benefits of plant-based phytochemicals

Nutrition: It's not just the four basic food groups any more. Researcher Dr. Susanne Mertens-Talcott of Texas A&M University is looking into how plant-based phytochemicals, including antioxidants and herbal supplements, can be useful in the promotion of health and prevention of chronic diseases.

19 Apr 2007

Cytokinetics initiates of phase II clinical trial for CK-1827452

Cytokinetics has announced the initiation of a Phase II clinical trials program evaluating CK-1827452, a novel cardiac myosin activator for the potential treatment of patients with either acutely decompensated or chronic heart failure.

15 Apr 2007

Gelatin-based nanoparticles deliver therapeutic genes to human breast cancer

Northeastern University professor Mansoor Amiji and graduate student Sushma Kommareddy have published a new paper that examines the potential of engineered gelatin-based nanoparticles to deliver therapeutic genes to human breast cancer tumors implanted in mice.

14 Apr 2007

Study provides first direct link between plants and humans

The study was published in an advance online edition of the Proceedings of the National Academy of Sciences during the week of April 9, 2007.

10 Apr 2007

Bacterial endosymbionts are essential for the reproduction of a fungus

Endosymbiotic relationships, in which one organism lives within another, are striking examples of mutualism, and can often significantly shape the biology of the participant species.

7 Apr 2007

Researchers identify 221 genes possibly related to addiction vulnerability

Scientists supported by the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health, have for the first time identified genes that might increase a person's ability to abstain from smoking.

4 Apr 2007

Recognition for cancer researchers

World-class cancer researchers whose science has significantly contributed to progress in the fight against cancer will be recognized April 14-18, 2007, by the American Association for Cancer Research (AACR) at its 2007 Annual Meeting in Los Angeles, Calif.

3 Apr 2007

Breakthrough research finds genes which may help smoking cessation

2 Apr 2007

Researchers discover a new mechanism that regulates stem cell division

Errors in stem cell division can give rise to tumours. By studying stem cells in the fruit fly, scientists at the Institute for Research in Biomedicine (IRB Barcelona) have identified one of the mechanisms that govern how these cells divide.

7 Mar 2007

Power-boosting signal in muscle declines with age

As people age, they may have to exercise even harder to get the benefits afforded to younger folk. That's the suggestion of a report in the February issue of the journal Cell Metabolism, showing that a signal that gives muscles a kind of metabolic boost in response to exercise is blunted in older animals.

6 Feb 2007