Department of Pharmacology
Benoit Giasson, Ph.D.
Education:| 1986-1988 | College Education Diplomat | St. Lawrence College, Quebec City , Canada |
| 1988-1991 | B.S. (Biochemistry) | McGill University, Montreal, Canada |
| 1991-1997 | Ph.D. (Biochemistry) | McGill University, Montreal, Canada |
Neurodegenerative diseases are devastating disorders that lead to the deterioration of quality of life of affected individuals, impose a tremendous burden on caregivers, and create an enormous socio-economical strain. Since age is the most important risk factor for developing these disorders, the number of individuals affected will continue to grow with the aging population. It is estimated that Alzheimer’s disease and Parkinson’s disease, the most common neurodegenerative disorders, afflict 30% and 4% of the population, respectively, by the age of 80, but these diseases can affect a significant number of individuals as early as 50 years of age. Although present therapeutics can alleviate some of the symptoms of these diseases, there are still no effective cures or interventions to prevent these diseases.
In the past several years, the discoveries of novel genes and mutations that cause disease have shed new light on the pathological pathways involved in these disorders. Some findings have supported the notion that aberrant proteinaceous inclusions comprised of the protein α-synuclein and tau play an important role in disease. The characterization of the function of other disease-causing genes such as parkin, DJ-1 and LRRK-2 are still under intense investigation. The goals of my laboratory are to understand the biological changes that lead to the aberrant formation of intracellular protein aggregations that are associated with neurodegenerative diseases. Furthermore, the effects of mutations in parkin, DJ-1 and LRRK-2 on normal biological pathways, enhancing oxidative stress, protein aggregation and neuronal cell death are under investigation. A variety of biological and biochemical experimental approaches including in vitro experiments, examination of pathological specimens, tissue culture paradigms and transgenic mouse models are being applied to try to understand the underlying pathobiology of neurodegenerative disorders.
Meulener MC, Graves CL, Sampathu DM, Armstrong-Gold CE, Bonini NM & Giasson BI: DJ-1 is present in a large molecular complex in human brain tissue and interacts with α-synuclein. J Neurochem 93: 1524-1532, 2005.
Norris EH & Giasson BI: Role of oxidative damage in protein aggregation associated with Parkinson’s disease and related disorders. Antioxid Redox Signal 7: 672-684, 2005.
Yazawa I, Giasson BI, Sasaki R, Zhang B, Joyce S, Uryu K, Trojanowski JQ & Lee VM-Y: Mouse model of multiple system atrophy: α-synuclein expression in oligodendrocytes causes glial and neuronal degeneration. Neuron 45: 847-859, 2005.
Greenbaum EA, Graves CL, Mishizen-Eberz Aj, Lupoli MA, Lynch DR, Englander SE, Axelson PH, & Giasson BI: The E46K mutation in α-synuclein increases amyloid fibril formation. J Biol Chem 280: 7800-7807, 2005.
Giasson BI & Lee VM-Y: Are ubiquitination pathways central to Parkinson's disease? Cell 114: 1-8, 2003.
Giasson BI, Forman MS, Golbe LI, Graves CL, Kotzbauer PT, Trojanowski JQ, & Lee VM.-Y: Initiation and synergistic fibrillization of tau and α-synuclein. Science 300: 636-640, 2002.
Giasson BI, Duda JE, Quinn SM, Zhang B, Trojanowski JQ & Lee VM-Y: Neuronal a-synucleinopathy with severe movement disorder in mice expressing A 53T human α-synuclein. Neuron 34: 521-533, 2002.
Giasson BI, Murray IV, Trojanowski JQ & Lee VM-Y: A hydrophobic stretch of 12 amino acids residues in the middle of α-synuclein is essential for filament assembly. J Biol Chem 276: 2380-2386, 2001.Giasson BI & Lee VM-Y: Parkin and the molecular pathways of Parkinson’s disease. Neuron 31: 885-888, 2001.
Lab Address:Department of Pharmacology
89A John Morgan Building
University of Pennsylvania School of Medicine
3620 Hamilton Walk
Philadelphia, PA 19104-6084
Lab Telephone: 215-898-6012 Lab Fax: 215-573-2236


