title: Cat and mouse.
abstract: The role of cathepsin B, a lysosomal protease implicated in amyloid-beta (Abeta1-42) metabolism, in Alzheimer's disease remains controversial. In this issue of Neuron, Mueller-Steiner et al. manipulate the expression of cathepsin B in aged APP transgenic mice, observing that increased expression degrades preformed oligomeric and fibrillar amyloid, while inactivation accelerates beta-amyloidosis.
authors.affiliation: Greater Los Angeles Healthcare System, Veterans Administration Medical Center, Geriatric Research Education Clinical Center, North Hills, California 91343, USA.
authors.forename: Greg M
authors.initials: GM
authors.lastname: Cole
authors.forename: Sally A
authors.initials: SA
authors.lastname: Frautschy
mesh_terms: D000544:Alzheimer Disease / Q000378:metabolism* / Q000473:pathology; D000682:Amyloid / Q000378:metabolism*; D016229:Amyloid beta-Peptides / Q000378:metabolism; D016564:Amyloid beta-Protein Precursor / Q000235:genetics / Q000378:metabolism; D000818:Animals; D001921:Brain / Q000378:metabolism / Q000473:pathology; D002401:Cathepsin B / Q000235:genetics / Q000378:metabolism*; D006801:Humans; D006868:Hydrolysis; D051379:Mice; D018345:Mice, Knockout; D008822:Mice, Transgenic; D008954:Models, Biological; D009154:Mutation / Q000235:genetics; D016501:Neurites / Q000378:metabolism / Q000473:pathology; D009474:Neurons / Q000378:metabolism / Q000473:pathology; D010446:Peptide Fragments / Q000378:metabolism; D058225:Plaque, Amyloid / Q000378:metabolism / Q000473:pathology
chemical_list: D000682:Amyloid; D016229:Amyloid beta-Peptides; D016564:Amyloid beta-Protein Precursor; D010446:Peptide Fragments; C075222:amyloid beta-protein (1-42); D002401:Cathepsin B