title: Amyotrophic lateral sclerosis and frontotemporal lobar degeneration: a spectrum of TDP-43 proteinopathies.
abstract: It is now established that pathological transactive response DNA-binding protein with a Mr of 43 kD (TDP-43) on sodium dodecyl sulfate-polyacrylamide gel electrophoresis is the major disease protein in amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) with ubiquitin-positive inclusions (now known as FTLD-TDP). In fact, the discovery of pathological TDP-43 solidified the idea that these disorders are multi-system diseases and this led to the concept of a TDP-43 proteinopathy as a spectrum of disorders comprised of different clinical and pathological entities extending from ALS to ALS with cognitive impairment/dementia and FTLD-TDP without or with motor neuron disease (FTLD-MND). These align along a broad disease continuum sharing similar pathogenetic mechanisms linked to pathological TDP-43. We here review salient findings in the development of a concept of TDP-43 proteinopathy as a novel group of neurodegenerative diseases similar in concept to alpha-synucleinopathies and tauopathies.
authors.affiliation: The Institute on Aging, Center for Neurodegenerative Disease Research and the Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Pennsylvania 19104-4283, USA.
authors.forename: Felix
authors.initials: F
authors.lastname: Geser
authors.forename: Virginia M-Y
authors.initials: VM
authors.lastname: Lee
authors.forename: John Q
authors.initials: JQ
authors.lastname: Trojanowski
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000378:metabolism / Q000473:pathology*; D001921:Brain / Q000378:metabolism / Q000473:pathology*; D004268:DNA-Binding Proteins / Q000378:metabolism*; D057174:Frontotemporal Lobar Degeneration / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D009474:Neurons / Q000378:metabolism / Q000473:pathology
chemical_list: D004268:DNA-Binding Proteins