Cell Biology News and Research

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Prions rapidly 'remodel' good protein into bad

Two Brown Medical School biologists have figured out the fate of healthy protein when it comes in contact with the infectious prion form in yeast: The protein converts to the prion form, rendering it infectious. In an instant, good protein goes bad.

19 Sep 2005

Workshop - stem cells in reproduction and in the brain

"Once we have found the factors by which body cells can be re-programmed into stem cells, then therapeutic cloning might become superfluous," said Hans R. Scholer, director of the Max Planck Institute for Molecular Biomedicine in Munster, Germany, at an international scientific symposium on stem cell research in Kobe, Japan.

10 Sep 2005

UK fertility specialist and broadcaster says embryonic stem cell research promises are hyped up

According to a well known fertility specialist and broadcaster in the UK, the promise of embryonic stem cell research has been oversold by scientists.

5 Sep 2005

Molecular switch that turns on the production of myelin

Scientists at New York University School of Medicine report in a new study that they have identified the molecular switch that turns on the production of myelin, the fatty insulation around nerve cells that ensures swift and efficient communication in the nervous system.

1 Sep 2005

Macrophages kill bacteria - but not always

Macrophages are effective weapons used by our immune system to absorb and digest pathogenic intruders. Some bacteria, however, can subvert this defence mechanism and even multiply within the macrophages.

1 Sep 2005

Compound called GRN163L blocks lung cancer

Researchers at UT Southwestern Medical Center have found a compound that shows promise as a way to block the spread, or metastasis, of lung cancer.

1 Sep 2005

Protein snapin has potential as a drug target in therapies aimed at learning and memory disorders

Rutgers' Bonnie Firestein likens nerve cells to trees -- some are short and bushy with many branches while others are tall with a few branches coming out of one or two main trunks. Different branching patterns correlate with specific disorders and Firestein's quest is to discover how these dissimilar patterns come about and why.

25 Aug 2005

Scientists step closer to understanding the genetic pathway involved in the development of hearing

New research findings, published online in the journal Nature Genetics, detail how sensory hair cells in the ear - the cells largely responsible for hearing - develop unique shapes that enable the perception of sound.

22 Aug 2005

Asymmetric cell divisions are essential for skin development

It took almost 10 years for Elaine Fuchs, Ph.D., a Howard Hughes Medical Institute investigator at Rockefeller University, to find a postdoctoral fellow who shared her curiosity for the direction of cell divisions in the skin.

18 Aug 2005

C. elegans has similar virus-fighting mechanism as humans and can be used in research

Researchers at the University of California, Riverside have discovered that a simple worm, called C. elegans, makes an excellent experimental host for studying some of the most virulent viruses that infect humans.

17 Aug 2005

Biochemical switch that affects how neurons fire in a part of the brain associated with learning

Researchers at UT Southwestern Medical Center have identified a biochemical switch that affects how neurons fire in a part of the brain associated with learning, findings that may aid in understanding schizophrenia and Alzheimer's disease.

17 Aug 2005

Gene therapy success for the treatment of congenital muscular dystrophy (CMD) in mice

Researchers from the University of Pittsburgh report the first study to achieve success with gene therapy for the treatment of congenital muscular dystrophy (CMD) in mice, demonstrating that the formidable scientific challenges that have cast doubt on gene therapy ever being feasible for children with muscular dystrophy can be overcome.

15 Aug 2005

Protein that protects the body from tissue damage also increases the risk of tumors

You win some, you lose some. A protein that protects the body from tissue damage also increases the risk of tumors, according to a study conducted at Washington University School of Medicine in St. Louis. Moderate reduction of the protein level protects against tumor formation but increases susceptibility to tissue injury.

11 Aug 2005

Key step in the production of beta-amyloid

Researchers at UT Southwestern Medical Center have defined a key step in the production of beta-amyloid, a short protein that is thought to be responsible for the development of Alzheimer's disease. Understanding this step may aid in the discovery of drugs that could help block the disease from developing.

11 Aug 2005

Cells direct membrane traffic by channel width

For a glycerol molecule, a measly angstrom's difference in diameter is a road-closed sign: You can't squeeze through unless you are a sleek, water-molecule-sized sports car, say scientists at the University of Illinois at Urbana-Champaign.

11 Aug 2005

Placental tissue could feasibly provide an abundant source of cells with the same potential to treat diseases as embryonic stem cells

Routinely discarded as medical waste, placental tissue could feasibly provide an abundant source of cells with the same potential to treat diseases and regenerate tissues as their more controversial counterparts, embryonic stem cells, suggests a University of Pittsburgh study to be published in the journal Stem Cells and available now as an early online publication in Stem Cells Express.

10 Aug 2005

MicroRNAs play an important role in regulating oogenesis

Researchers at Northwestern University and Carnegie Mellon University have found that a recently described class of molecules called microRNAs (miRNAs) play an important role in regulating oogenesis, the process by which females make eggs.

9 Aug 2005

Scientists identify protein that may inhibit cellular movement

Scientists from the University of North Carolina at Chapel Hill School of Medicine and the UNC Lineberger Comprehensive Cancer Center have identified a protein that may inhibit cellular movement, or migration.

8 Aug 2005

Discovery may lead to new therapies for leukemia

Researchers from the University of Pennsylvania School of Medicine found that a protein called NF-Ya activates several genes known to regulate the development of hematopoietic stem cells (HSC), or blood-producing stem cells, in bone marrow.

2 Aug 2005

Aging profile of the human brain differs greatly from that seen in chimpanzees

Researchers have found that the two primary areas of the human brain appear to age in radically different ways: The cortex used in higher-level thought undergoes more extensive changes with age than the cerebellum, which regulates basic processes such as heartbeat, breathing and balance.

2 Aug 2005

Cell Biology News and Research

Prions rapidly 'remodel' good protein into bad

Workshop - stem cells in reproduction and in the brain

UK fertility specialist and broadcaster says embryonic stem cell research promises are hyped up

Molecular switch that turns on the production of myelin

Macrophages kill bacteria - but not always

Compound called GRN163L blocks lung cancer

Protein snapin has potential as a drug target in therapies aimed at learning and memory disorders

Scientists step closer to understanding the genetic pathway involved in the development of hearing

Asymmetric cell divisions are essential for skin development

C. elegans has similar virus-fighting mechanism as humans and can be used in research

Biochemical switch that affects how neurons fire in a part of the brain associated with learning

Gene therapy success for the treatment of congenital muscular dystrophy (CMD) in mice

Protein that protects the body from tissue damage also increases the risk of tumors

Key step in the production of beta-amyloid

Cells direct membrane traffic by channel width

Placental tissue could feasibly provide an abundant source of cells with the same potential to treat diseases as embryonic stem cells

MicroRNAs play an important role in regulating oogenesis

Scientists identify protein that may inhibit cellular movement

Discovery may lead to new therapies for leukemia

Aging profile of the human brain differs greatly from that seen in chimpanzees

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