Tag Archives: genetics

Potential treatment for Parkinson’s, Alzheimer’s, dementia discovered

A drug currently being used to treat leukemia has been found to help halt the production of toxic proteins in the brain linked to Alzheimer’s disease, Parkinson’s disease and various forms of dementia. Researchers from Georgetown University successfully used small doses of the drug nilotinib, used to treat chronic myelogenous leukemia (CML), to eliminate abnormal protein build-up in the brains of mice. The scientists targeted the alpha-Synuclein and tau proteins, which have been previously implicated in the development of Parkinson’s disease, Alzheimer’s disease, amyotrophic lateral sclerosis (ALS), Huntington’s disease, Lewy body dementia and other neurodegenerative conditions. …

Research reveals cancer-suppressing protein ‘multitasks’

More than half of human cancers carry defects in the gene for p53, and almost all other cancers, with a normal p53 gene, carry other defects that somehow impair the function of the p53 protein. Inherited mutations in the p53 gene put people at a very high risk of developing a range of cancers. The p53 protein’s functions are normally stimulated by potentially cancer-causing events, such as DNA damage from ultraviolet radiation (a cause of skin cancer), or the over-activity of cancer-causing genes. Ms Liz Valente, Dr Ana Janic and Professor Andreas Strasser from the Molecular Genetics of Cancer division at the Walter and Eliza Hall Institute have been dissecting the processes that are controlled by p53, to discover how this protein can suppress cancer development…

How nerve wiring self-destructs

Now, researchers at Washington University School of Medicine in St. Louis have found a way the body can remove injured axons, identifying a potential target for new drugs that could prevent the inappropriate loss of axons and maintain nerve function. "Treating axonal degeneration could potentially help a lot of patients because there are so many diseases and conditions where axons are inappropriately lost," says Aaron DiAntonio, MD, PhD, professor of developmental biology. "While this would not be a cure for any of them, the hope is that we could slow the progression of a whole range of diseases by keeping axons healthy." DiAntonio is senior author of the study that appears online May 9 in the journal Cell Reports. …