PMID- 22212405 OWN - NLM STAT- MEDLINE DCOM- 20130124 LR - 20120410 IS - 1558-1497 (Electronic) IS - 0197-4580 (Linking) VI - 33 IP - 6 DP - 2012 Jun TI - The early events of Alzheimer's disease pathology: from mitochondrial dysfunction to BDNF axonal transport deficits. PG - 1122.e1-10 LID - 10.1016/j.neurobiolaging.2011.11.004 [doi] AB - Although there are numerous studies regarding Alzheimer's disease (AD), the cause and progression of AD are still not well understood. The researches in the past decade implicated amyloid-beta (Abeta) overproduction as a causative event in disease pathogenesis, but still failed to clarify the mechanism of pathology from Abeta production to central neural system defects in AD. The present review raises the hypothesis that the onset of AD pathology is closely related with mitochondrial dysfunction induced by Abeta and brain-derived neurotrophic factor (BDNF) axonal transport deficits. It is well-known that axonal transport defect and attenuation of BDNF-neurotrophic tyrosine receptor kinase 2 (TrkB) signal are fatal to neuronal function and survival. We hypothesized that abnormal amyloid precursor protein (APP) processing and Abeta production in mitochondria disturb the axonal transport by impairing mitochondrial function and attenuate BDNF-neurotrophic tyrosine receptor kinase 2 signal subsequently. For this hypothesis, the factors related with the initiation of AD pathology are not only limited to the neurons per se but also expanded to the microenvironment around neurons, such as the secretion of BDNF from astrocytes. The modification of the origin in this pathway may contribute to slow down the disease progression of AD. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Ye, Xuan AU - Ye X AD - State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. FAU - Tai, Wenjiao AU - Tai W FAU - Zhang, Dan AU - Zhang D LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20111231 PL - United States TA - Neurobiol Aging JT - Neurobiology of aging JID - 8100437 RN - 0 (Amyloid beta-Peptides) RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Alzheimer Disease/genetics/*metabolism/*pathology MH - Amyloid beta-Peptides/physiology MH - Animals MH - Axonal Transport/*genetics MH - Brain-Derived Neurotrophic Factor/*deficiency/genetics/physiology MH - Cell Line, Tumor MH - Cells, Cultured MH - Humans MH - Mice MH - Mice, Inbred C57BL MH - Mitochondria/*pathology/physiology MH - Neural Inhibition/genetics EDAT- 2012/01/04 06:00 MHDA- 2013/01/25 06:00 CRDT- 2012/01/04 06:00 PHST- 2011/07/27 00:00 [received] PHST- 2011/11/01 00:00 [revised] PHST- 2011/11/04 00:00 [accepted] PHST- 2012/01/04 06:00 [entrez] PHST- 2012/01/04 06:00 [pubmed] PHST- 2013/01/25 06:00 [medline] AID - S0197-4580(11)00475-1 [pii] AID - 10.1016/j.neurobiolaging.2011.11.004 [doi] PST - ppublish SO - Neurobiol Aging. 2012 Jun;33(6):1122.e1-10. doi: 10.1016/j.neurobiolaging.2011.11.004. Epub 2011 Dec 31.