Cell Membrane News and Research

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Scientists solve a decades-long mystery of cell biology

A team led by scientists at The Scripps Research Institute has identified a long-sought protein that facilitates one of the most basic functions of cells: regulating their volume to keep from swelling excessively.

11 Apr 2014

Genome Project offers new leads to improve outcomes for children with high-grade glioma brain tumors

The St. Jude Children's Research Hospital-Washington University Pediatric Cancer Genome Project has identified new mutations in pediatric brain tumors known as high-grade gliomas (HGGs), which most often occur in the youngest patients.

8 Apr 2014

Inhibiting cancer-promoting prolactin causes unconventional cell death in preclinical research

Under stress from chemotherapy or radiation, some cancer cells dodge death by consuming a bit of themselves, allowing them to essentially sleep through treatment and later awaken as tougher, resistant disease.

4 Apr 2014

Scientists present protein that facilitates control of nerve cells by light

Networked nerve cells are the control center of organisms. In a nematode, 300 nerve cells are sufficient to initiate complex behavior. To understand the properties of the networks, re-searchers switch cells on and off with light and observe the resulting behavior of the organism.

2 Apr 2014

Potassium boost improves walking, prolongs survival in mouse model of Huntington's disease

Tweaking a specific cell type's ability to absorb potassium in the brain improved walking and prolonged survival in a mouse model of Huntington's disease, reports a UCLA study published March 30 in the online edition of Nature Neuroscience. The discovery could point to new drug targets for treating the devastating disease, which strikes one in every 20,000 Americans.

31 Mar 2014

Researchers provide new clues for adult vertebrate tissue regeneration

The reason why some animals can regenerate tissues after severe organ loss or amputation while others, such as humans, cannot renew some structures has always intrigued scientists. In a study now published in PLOS ONE, a research group from Instituto Gulbenkian de Ci-ncia (IGC, Portugal) led by Joaqu-n Rodr-guez Le-n provided new clues to solve this central question by investigating regeneration in an adult vertebrate model: the zebrafish.

27 Mar 2014

Researchers decode effects of antimicrobial peptide on bacterial cells

The team of Julia Bandow, who heads the RUB's Junior Research Group Microbial Antibiotic Research, has been studying the MP196 peptide as a representative of a group of very small positively charged peptides that consist of some four to ten amino acids.

27 Mar 2014

Study uncovers one way that p53 acts to prevent cancer cell invasion

The tumor suppressor p53 does all it can to prevent oncogenes from transforming normal cells into tumor cells by killing defective cells or causing them to become inactive.

25 Mar 2014

Study shows how changes in organized cell membrane network of heart muscle leads to heart failure

Colchicine, a drug that's used to treat gout, has the beneficial side effect of lowering the risk of heart attack in patients taking it. Conversely, taxol, a drug for treating cancer, has the opposite effect; raising the risk of heart failure.

6 Mar 2014

Medical student receives award for finding out drugs to treat peripheral vascular disease

Working at a Saint Louis University laboratory, second-year medical student Weston Gordon performed several studies investigating two novel drug therapies that may be useful in the treatment of peripheral vascular disease in patients with Type 2 diabetes.

4 Mar 2014

Researchers create new probe that freezes cells to "see" at greater detail without damaging

It's an odd twist. For scientists to determine if a cell is functioning properly, they must destroy it. This is what happens in X-ray fluorescence microscopy when biological specimens are exposed to ionizing radiation, which provides images with a level of detail that conventional microscopes just can't match.

26 Feb 2014

Researchers produce extremely accurate and detailed images of "toxic injections"

Bacteria have developed many different ways of smuggling their toxic cargo into cells. Tripartite Tc toxin complexes, which are used by bacteria like the plague pathogen Yersinia pestis and the insect pathogen Photorhabdus luminescens, are particularly unusual.

25 Feb 2014

New receptors act as biological postal code for treating cancer

Scientists have discovered that a polymer can provide a key to get into tumors: Prof. Prasad Shastri, Director of the Institute of Macromolecular Chemistry and core member of the cluster of excellence BIOSS Centre for Biological Signalling Studies at the University of Freiburg, and graduate students Julia Voigt and Jon Christensen have developed a new paradigm to home nanoparticles, containers that measure a few 100 nanometers in size, to endothelial cells.

11 Feb 2014

Engineers place tiny synthetic motors inside live human cells

For the first time, a team of chemists and engineers at Penn State University have placed tiny synthetic motors inside live human cells, propelled them with ultrasonic waves and steered them magnetically. It's not exactly "Fantastic Voyage," but it's close. The nanomotors, which are rocket-shaped metal particles, move around inside the cells, spinning and battering against the cell membrane.

11 Feb 2014

Researchers identify key step to prevent liver failure resulting from painkiller overdose

University of Adelaide researchers have identified a key step for the future prevention of liver failure resulting from taking too much of the everyday painkiller paracetamol (also known as acetaminophen).

5 Feb 2014

Researchers identify protein critical to hematopoietic stem cell function, blood formation

Researchers at the University of California, San Diego School of Medicine have identified a protein critical to hematopoietic stem cell function and blood formation. The finding has potential as a new target for treating leukemia because cancer stem cells rely upon the same protein to regulate and sustain their growth.

3 Feb 2014

Researchers design semi-synthetic proteins to analyse body's vital signal processes

Proteins play a fundamental role in almost all biological processes. They consist of chains constructed of up to 20 different amino acids, and their composition, structure and function are controlled by the genetic code.

29 Jan 2014

Biologists identify protein targets for next-generation of anti-HIV drugs

People infected with the Human Immunodeficiency Virus (HIV) can stave off the symptoms of AIDS thanks to drug cocktails that mainly target three enzymes produced by the virus, but resistant strains pop up periodically that threaten to thwart these drug combos.

29 Jan 2014

Researchers discover protein required for growth of hair-like structures on cell surfaces

A team of researchers from Penn State University and the University of California has discovered a protein that is required for the growth of tiny, but critical, hair-like structures called cilia on cell surfaces.

28 Jan 2014

CWRU researchers receive NIAID grant to conduct HIV research and clinical trials

AIDS researchers from Case Western Reserve University and University Hospitals Case Medical Center have received a seven-year funding award from the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health.

23 Jan 2014