Lysosomes News and Research

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Researchers use nanoparticles to deliver drugs to mitochondria within cells

Nanoparticles have shown great promise in the targeted delivery of drugs to cells, but researchers at the University of Georgia have refined the drug delivery process further by using nanoparticles to deliver drugs to a specific organelle within cells.

21 Sep 2012

ABCD4 and CblF proteins responsible for hereditary vitamin B12 deficiency

Vitamin B12 is vital for cell division, the synthesis of red blood cells and the functioning of the nervous system. Unable to produce the vitamin itself, the human body has to obtain it via animal proteins. So far it has been known that on its way into the cell vitamin B12 is absorbed by little organelles, so-called lysosomes. From there, the vitamin enters the cell interior with the aid of the transport protein CblF, which was discovered by the same research team three years ago.

28 Aug 2012

Researchers discover genetic cause of type VII mucopolysaccharidosis in Brazilian Terriers

The genetics research group led by Professor Hannes Lohi, based at the University of Helsinki and the Folkh-lsan Research Center, has, in collaboration with Adjunct Professor Kirsi Sainio's research group, discovered the cause of a life-threatening skeletal disorder affecting Brazilian Terriers. The disease is caused by a mutation in the GUSB gene.

7 Aug 2012

Scripps Florida scientists to identify and develop new therapeutic approaches against cancers

Scientists from the Florida campus of The Scripps Research Institute have been awarded approximately $1.5 million from the National Institutes of Health to identify and develop new therapeutic approaches against a broad spectrum of cancers.

7 Aug 2012

Single event of brain trauma can lead to Alzheimer’s

A study, performed in mice and utilizing post-mortem samples of brains from patients with Alzheimer’s disease, found that a single event of a moderate-to-severe traumatic brain injury (TBI) can disrupt proteins that regulate an enzyme associated with Alzheimer’s. The paper, published in The Journal of Neuroscience, identifies the complex mechanisms that result in a rapid and robust post-injury elevation of the enzyme, BACE1, in the brain. These results may lead to the development of a drug treatment that targets this mechanism to slow the progression of Alzheimer’s disease.

25 Jul 2012

Moderate-to-severe TBI can disrupt proteins that regulate enzyme associated with Alzheimer's

A study, performed in mice and utilizing post-mortem samples of brains from patients with Alzheimer's disease, found that a single event of a moderate-to-severe traumatic brain injury (TBI) can disrupt proteins that regulate an enzyme associated with Alzheimer's.

25 Jul 2012

Mitochondrial gene regulators involved in Huntington’s disease pathology

Researchers have identified two molecules involved in mitochondrial function that appear to be important in the pathogenesis of Huntington’s disease.

16 Jul 2012

DNA from CF patients with and without chronic infections points to unsuspected mutation

Comparing the DNA from patients at the best and worst extremes of a health condition can reveal genes for resistance and susceptibly. This approach discovered rare variations in the DCTN4 gene among cystic fibrosis patients most prone to early, chronic airway infections.

9 Jul 2012

Scientists discover constant cloud of potent inflammatory molecules surrounding the monocytes

Scientists at the University of East Anglia (UEA) have discovered a 'constant cloud' of potent inflammatory molecules surrounding the cells responsible for diseases such as thickening of the arteries and rheumatoid arthritis.

5 Jul 2012

Caspase-11 enzyme plays an important role in Legionella infection

New research shows that an enzyme that has long been considered relatively useless to the immune response instead has an important role in setting up immune cells to kill infection-causing bacteria.

13 Jun 2012

Study sheds light on role of microglia in the normal brain

Researchers have shown in mice how immune cells in the brain target and remove unused connections between brain cells during normal development. This research, supported by the National Institutes of Health, sheds light on how brain activity influences brain development, and highlights the newly found importance of the immune system in how the brain is wired, as well as how the brain forms new connections throughout life in response to change.

24 May 2012

Study sheds light on cellular mechanisms involved in flu resistance

Scientists from the University of Utah School of Medicine have discovered that a mouse protein called IFITM3 contributes to the body's defense against some types of viral infections by binding to an enzyme responsible for regulating the pH of a cell's waste disposal system.

2 Apr 2012

Potential new way to treat rare inherited metabolic disorders

A University of Michigan cell biologist and his colleagues have identified a potential drug that speeds up trash removal from the cell's recycling center, the lysosome.

14 Mar 2012

Researchers discover key interaction at heart of promising new treatment for Fabry disease

A research team led by biochemist Scott Garman at the University of Massachusetts Amherst has discovered a key interaction at the heart of a promising new treatment for a rare childhood metabolic disorder known as Fabry disease.

23 Dec 2011

Mutations that affect lysosomes play a role in causing persistent stuttering

Researchers at Washington University School of Medicine in St. Louis have obtained new evidence that at least some persistent stuttering is caused by mutations in a gene governing not speech, but a metabolic pathway involved in recycling old cell parts.

23 Nov 2011

Cancer cells tap into natural recycling system to obtain energy

Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered that cancer cells tap into a natural recycling system to obtain the energy they need to keep dividing. In a study with potential implications for cancer treatments, Einstein researchers used genetic manipulation to turn off this recycling system within the walls of cells and stop both tumor growth and metastasis.

17 Nov 2011

Lower glycemic index diet may delay onset of AMD-like lesions

Feeding older mice a lower glycemic index (GI) diet consisting of slowly-digested carbohydrates delays the onset of age-related, sight-threatening retinal lesions, according to a new study from the Laboratory for Nutrition and Vision Research at the Jean Mayer USDA Human Nutrition Research Center on Aging (USDA HNRCA) at Tufts University.

14 Nov 2011

Study reveals what causes lysosome to overflow in Batten disease

Waste management is a big issue anywhere, but at the cellular level it can be a matter of life and death. A Weizmann Institute study, published in the Journal of Cell Biology, has revealed what causes a molecular waste container in the cell to overflow in Batten disease, a rare but fatal neurodegenerative disorder that begins in childhood.

3 Nov 2011

Scientists discover nanoparticles can disrupt intracellular transport pathways

Scientists at the Centre of Cancer Biomedicine at the Norwegian Radium Hospital are the first to show that uptake and accumulation of nanoparticles in cells can disrupt important intracellular transport pathways.

24 Aug 2011

Innovative delivery systems and methods to treat breast cancer

In their lifetime, women have more than a 12 percent risk of being diagnosed with breast cancer. 1 This week, research on novel approaches to breast cancer treatment is being presented at the Era of Hope (EOH) conference, a scientific meeting hosted by the Department of Defense Breast Cancer Research Program (BCRP).

4 Aug 2011