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MNI researchers find a new role for mitochondria in cellular copper regulation
May 02, 2007A penny for your thoughts
Copper is an essential part of our lives. From copper pipes and wires - to important copper-containing proteins in the body, copper is necessary for healthy growth and neurological development. Researchers at the Montreal Neurological Institute at McGill University are studying how copper is processed in our bodies and its distinct role in early development. Their findings, published in a recent edition of the journal Cell Metabolism, identify a new role for two proteins involved with copper regulation. This study may lead to a better understanding of how to treat individuals affected by copper imbalances.
"Copper is important in maintaining healthy cells. When copper is not properly regulated in the body it can lead to diseases of the liver, kidneys, brains and eyes," says Dr. Eric Shoubridge, a professor of Human Genetics at the Montreal Neurological Institute, McGill University and lead investigator. "We know that copper is especially important in early development, playing a vital role in the proper formation of organs. Mutations in two copper-carrying proteins, SCO1 and SCO2 have been implicated in a number of neonatal diseases."
Copper is required for the activity of a number of enzymes including cytochrome c oxidase (COX) in the mitochondria -the energy suppliers of the body. "Our study is the first to characterize an unexpected cell-signaling or messenger role for the two copper-carrying proteins, SCO1 and SCO2, which are necessary for the assembly of COX," says Shoubridge.
To characterize the roles of SCO1 and SCO2, Shoubridge and colleagues looked at cells that contained mutated forms of either one or both of these molecules. The study shows that both proteins have a role in maintaining the balance of copper between different cellular compartments. "These findings add two members to a growing list of bi-functional proteins that participate in copper metabolism." adds Shoubridge. "Identifying this new role for SCO1 and SCO2 is significant in developing better therapies for several neurological diseases.
Montreal Neurological Institute and Hospital
Copper is required for the activity of a number of enzymes including cytochrome c oxidase (COX) in the mitochondria -the energy suppliers of the body. "Our study is the first to characterize an unexpected cell-signaling or messenger role for the two copper-carrying proteins, SCO1 and SCO2, which are necessary for the assembly of COX," says Shoubridge.
To characterize the roles of SCO1 and SCO2, Shoubridge and colleagues looked at cells that contained mutated forms of either one or both of these molecules. The study shows that both proteins have a role in maintaining the balance of copper between different cellular compartments. "These findings add two members to a growing list of bi-functional proteins that participate in copper metabolism." adds Shoubridge. "Identifying this new role for SCO1 and SCO2 is significant in developing better therapies for several neurological diseases.
Montreal Neurological Institute and Hospital
Neurological Current Events and Neurological News RSSPossible Link Studied Between Childhood Abuse and Early Cellular Aging
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Cancer metabolism discovery uncovers new role of IDH1 gene mutation in brain cancer
Agios Pharmaceuticals today announced that its scientists have established, for the first time, that the mutated IDH1 gene has a novel enzyme activity consistent with a cancer-causing gene, or oncogene.
New understanding about mechanism for cell death after stroke leads to possible therapy
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Smithsonian scientists find the frog legs trade may facilitate spread of pathogens
Most countries throughout the world participate in the $40-million-per-year culinary trade of frog legs in some way, with 75 percent of frog legs consumed in France, Belgium and the United States.
Scripps research scientists find new link between insulin and core body temperature
A team led by scientists at The Scripps Research Institute have discovered a direct link between insulin-a hormone long associated with metabolism and metabolic disorders such as diabetes-and core body temperature.
New Down syndrome treatment suggested by Stanford/Packard study in mice
At birth, children with Down syndrome aren't developmentally delayed. But as they age, these kids fall behind. Memory deficits inherent in Down syndrome hinder learning, making it hard for the brain to collect experiences needed for normal cognitive development.
Residential design for persons with neurological disability
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Research calls for better assessment of tests for tuberculosis, HIV/AIDS and malaria
A rapid and accurate diagnosis is the first step towards treatment in the fight against infectious disease.
Brain injured athletes may benefit from hypothermia research
NFL players and other athletes who suffer serious or multiple concussions may benefit from ground-breaking research being conducted by scientists at Barrow Neurological Institute at St. Joseph's Hospital and Medical Center. The scientists are developing a surgical technique that involves hypothermia in specific regions of the brain.
MIT scientists pinpoint origin of dissolved arsenic in Bangladesh drinking water
Researchers in MIT's Department of Civil and Environmental Engineering believe they have pinpointed a pathway by which arsenic may be contaminating the drinking water in Bangladesh, a phenomenon that has puzzled scientists, world health agencies and the Bangladeshi government for nearly 30 years.
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