Cell Membrane News and Research

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Preventing nerve cell death in diabetics

Dennis Paul, PhD, Associate Professor of Pharmacology, and Harry Gould, MD, PhD, the Tom Benson Professor of Neurology at LSU Health Sciences Center New Orleans, have been awarded one of two scientific research grants made in 2009 by The Neuropathy Association. The $80,000 grant will fund research to learn how to prevent nerve cell death in people with uncontrolled or untreated diabetes resulting in neuropathy.

23 Sep 2009

Disruption of the spectrin-actin network leads to lens cell in the eye to lose their shape: Study

A network of proteins underlying the plasma membrane keeps epithelial cells in shape and maintains their orderly hexagonal packing in the mouse lens, say Nowak et al. The study will appear in the September 21, 2009 issue of the Journal of Cell Biology (online September 14).

15 Sep 2009

Vivakor completes third-party validation testing of its VivaBlend nutraceutical product

Vivakor™, Inc. (OTCBB: VIVK) today announced the results of independent, third-party validation testing of its VivaBlend™ nutraceutical product. VivaBlend is a powerful extract developed by the scientists at Vivakor and is derived from over 18 highly bioactive fruits, vegetables and legumes. Through a proprietary formulation and extraction process, Vivakor scientists have maximized the health benefits of VivaBlend by creating an optimum blend of super-antioxidants and powerful plant phenolics and flavonoids.

14 Sep 2009

New findings may help identify treatments for diabetes and hyperinsulinemia

By investigating a rare and severe form of diabetes in children, University of Iowa researchers have discovered a new molecular mechanism that regulates specialized pancreatic cells and insulin secretion. The mechanism involves a protein called ankyrin, which UI researchers previously linked to potentially fatal human heart arrhythmias.

9 Sep 2009

TRAF6 protein plays a role in cell growth and carcinogenesis, says researchers

The mainstay immune system protein TRAF6 plays an unexpected, key role activating a cell signaling molecule that in mutant form is associated with cancer growth, researchers at The University of Texas M. D. Anderson Cancer Center report in the Aug. 28 edition of Science.

2 Sep 2009

New gene therapy vector developed for transferring therapeutic DNA to a cell's nucleus

A research report featured on the cover of the September 2009 print issue of The FASEB Journal describes how Australian scientists developed a new gene therapy vector that uses the same machinery that viruses use to transport their cargo into our cells. As a result of this achievement, therapeutic DNA can be transferred to a cell's nucleus far more efficiently than in the past, raising hopes for more effective treatment of genetic disorders and some types of cancers.

1 Sep 2009

TRAF6 protein can activate a cell signalling molecule associated with cancer

28 Aug 2009

Researchers reveal that genes contributing to drug resistance in NSCLC disease could be predicted

The genes that may contribute to drug resistance in non-small cell lung cancer (NSCLC) can be predicted. Researchers writing in the open access journal BMC Cancer found good correlation between genes believed to be involved in drug sensitivity and resistance and actual in vitro chemosensitivity.

26 Aug 2009

Researchers develop new ways for splitting dangerous pair of cancer proteins

A research team led by U of T Mississauga scientists has developed a new way to split up a dangerous pair of cancer proteins, a finding that could ultimately lead to chemotherapy that is more effective and has fewer side effects.

21 Aug 2009

New tool for scientists - light used to manipulate cell movement

One of the biggest challenges in scientists' quest to develop new and better treatments for cancer is gaining a better understanding of how and why cancer spreads. Recent breakthroughs have uncovered how different cellular proteins are turned 'on' or 'off' at the molecular level, but much remains to be understood about how protein signaling influences cell behavior.

19 Aug 2009

Discovery of mechanism that allows hepatitis C virus to remain in the body for decades

A study published in the Proceedings of the National Academy of Sciences (PNAS) shows that the virus blocks the actions of a specific ion channel in the cell membrane that would usually trigger apoptosis - the cell's self-destruct programme - and in doing so, has evolved another way of protecting itself from being eliminated from the body.

19 Aug 2009

New findings on how hepatitis C survives for so long in the body

Researchers at the University of Leeds have discovered a previously unknown mechanism that allows the hepatitis C virus (HCV) to remain in the body for decades.

18 Aug 2009

Sticky protein protects cells from mechanical stress

A new study by scientists at the University of Iowa shows why muscle membranes don't rupture when healthy people exercise.

26 Jul 2009

New nanoparticles could revolutionize therapeutic drug discovery

Understanding the structure of proteins is a vital first step in developing new drugs, but to date, researchers have had difficulty studying the large number of proteins that are normally embedded in the cell membrane, a family of proteins that includes those involved in cancer-related signaling processes.

21 Jul 2009

Research suggests core nuclear pore elements shared by all eukaryotes

For perhaps 1.8 billion years after life first emerged on Earth, a sort of evolutionary writer's block stalled the development of organisms more complicated than single cells. Then, a burst of experimental creativity about 1.7 billion years ago brought the cell nucleus onto the scene, stashing the cell's genetic material inside a protective inner membrane and setting the stage for the evolution of more sophisticated creatures from yeast, say, to plants and human beings.

12 Jul 2009

Cells use import machinery to export their goods as well

In the bustling economy of the cell, little bubbles called vesicles serve as container ships, ferrying cargo to and from the port - the cell membrane. Some of these vesicles, called post-Golgi vesicles, export cargo made by the cell's protein factory.

9 Jul 2009

Cryo-electron tomography shows immature HIV in 3D

Scientists at the European Molecular Biology Laboratory (EMBL) and the University Clinic Heidelberg, Germany, have produced a three-dimensional reconstruction of HIV (Human Immunodeficiency Virus), which shows the structure of the immature form of the virus at unprecedented detail. Immature HIV is a precursor of the infectious virus, which can cause AIDS.

23 Jun 2009

New discovery on how botulism paralyzes nerve cells

New structures of a botulism toxin interacting with a mimic of the nerve-cell protein it destroys suggest new ways to block this often-fatal interaction. Indeed, the mimic molecules have such high affinity for the toxin and bind to it so tightly that they themselves could possibly serve as anti-toxin drugs with further modification, the researchers said.

21 Jun 2009

Research identifies 3D structure of key nuclear pore building block

The genome of complex organisms is stashed away inside each cell's nucleus, a little like a sovereign shielded from the threatening world outside.

8 Jun 2009

Scientists create pig stem cells

Scientists have managed to induce cells from pigs to transform into pluripotent stem cells - cells that, like embryonic stem cells, are capable of developing into any type of cell in the body. It is the first time in the world that this has been achieved using somatic cells (cells that are not sperm or egg cells) from any animal with hooves (known as ungulates).

2 Jun 2009