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Zhao Y, Hou D, Feng X, Lin F, Luo J. Role of ABC transporters in the pathology of Alzheimer’s disease. Rev Neurosci 2017; 28:155-159. [PMID: 27997355 DOI: 10.1515/revneuro-2016-0060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 10/01/2016] [Indexed: 12/25/2022]
Abstract
AbstractThe ATP-binding cassette (ABC) transporter superfamily is a large family of proteins that transport specific molecules across membranes. These proteins are associated with both cholesterol metabolism and Alzheimer’s disease (AD). Cholesterol homeostasis has a key role in AD, and ABC transporters are important mediators of lipid transportation. Emerging evidence suggests that decreased expression and hypofunction of ABC transporters are crucial to the occurrence and development of AD. In the present article, we review the current knowledge regarding ABC transporters and speculate on their role in the pathogenesis of AD.
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Affiliation(s)
- Yan Zhao
- 1Department of Neurology, The Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha HN 410013, China
| | - Deren Hou
- 1Department of Neurology, The Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha HN 410013, China
| | - Xialu Feng
- 1Department of Neurology, The Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha HN 410013, China
| | - Fangbo Lin
- 1Department of Neurology, The Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha HN 410013, China
| | - Jing Luo
- 1Department of Neurology, The Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha HN 410013, China
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Li Y, Dai YB, Sun JY, Xiang Y, Yang J, Dai SY, Zhang X. Neuroglobin Attenuates Beta Amyloid-Induced Apoptosis Through Inhibiting Caspases Activity by Activating PI3K/Akt Signaling Pathway. J Mol Neurosci 2015; 58:28-38. [PMID: 26346601 DOI: 10.1007/s12031-015-0645-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 08/19/2015] [Indexed: 11/27/2022]
Abstract
Excessive accumulation and deposition of amyloid-beta (Aβ) has been considered as a pivotal event in the pathogenesis of Alzheimer's disease (AD). Neuronal apoptosis is one of the characteristics of AD, which is a possible mechanism underlying Aβ-induced neuronal neurotoxicity. Neuroglobin (Ngb) is a newly discovered vertebrate heme protein that exhibits neuroprotective functions against cell death associated with hypoxic and amyloid insult. However, until now, the exact mechanism of neuroglobin's protective action has not been determined. To investigate the potential neuroprotective roles and mechanisms of Ngb, transgenic AD mice (APPswe/PSEN1dE9) and SH-SY5Y cells transfected with pAPPswe were enrolled into the study. In vivo, overexpression of Ngb via intracerebroventricular injection with pNgb attenuated memory, cognitive impairment, and plaque generations. In pAPPswe transfected SH-SY5Y cells, Ngb not only decreased the generation of Aβ42, but also attenuated mitochondrial dysfunction and apoptosis through suppressing the activation of caspase-3, caspase-9 by Akt activating phosphorylation, which were restrained by phosphatidylinositol 3-kinase inhibitor (LY294002). Our data indicate the anti-apoptotic property of Ngb may play a neuroprotective role against AD.
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Affiliation(s)
- Yu Li
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Yu-bing Dai
- Department of Otolaryngology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Jie-yun Sun
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Yue Xiang
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Jun Yang
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Song-yang Dai
- Department of Pathology, Chongqing Medical University, Chongqing, China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China.,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China
| | - Xiong Zhang
- Department of Pathology, Chongqing Medical University, Chongqing, China. .,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, China. .,Institute of Neuroscience & Key Laboratory of Neurobiology, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, 400016, Chongqing, China.
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Caspase-8 Mediates Amyloid-β-induced Apoptosis in Differentiated PC12 Cells. J Mol Neurosci 2015; 56:491-9. [DOI: 10.1007/s12031-015-0498-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 01/14/2015] [Indexed: 02/02/2023]
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Hedskog L, Pinho CM, Filadi R, Rönnbäck A, Hertwig L, Wiehager B, Larssen P, Gellhaar S, Sandebring A, Westerlund M, Graff C, Winblad B, Galter D, Behbahani H, Pizzo P, Glaser E, Ankarcrona M. Modulation of the endoplasmic reticulum-mitochondria interface in Alzheimer's disease and related models. Proc Natl Acad Sci U S A 2013; 110:7916-21. [PMID: 23620518 PMCID: PMC3651455 DOI: 10.1073/pnas.1300677110] [Citation(s) in RCA: 353] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
It is well-established that subcompartments of endoplasmic reticulum (ER) are in physical contact with the mitochondria. These lipid raft-like regions of ER are referred to as mitochondria-associated ER membranes (MAMs), and they play an important role in, for example, lipid synthesis, calcium homeostasis, and apoptotic signaling. Perturbation of MAM function has previously been suggested in Alzheimer's disease (AD) as shown in fibroblasts from AD patients and a neuroblastoma cell line containing familial presenilin-2 AD mutation. The effect of AD pathogenesis on the ER-mitochondria interplay in the brain has so far remained unknown. Here, we studied ER-mitochondria contacts in human AD brain and related AD mouse and neuronal cell models. We found uniform distribution of MAM in neurons. Phosphofurin acidic cluster sorting protein-2 and σ1 receptor, two MAM-associated proteins, were shown to be essential for neuronal survival, because siRNA knockdown resulted in degeneration. Up-regulated MAM-associated proteins were found in the AD brain and amyloid precursor protein (APP)Swe/Lon mouse model, in which up-regulation was observed before the appearance of plaques. By studying an ER-mitochondria bridging complex, inositol-1,4,5-triphosphate receptor-voltage-dependent anion channel, we revealed that nanomolar concentrations of amyloid β-peptide increased inositol-1,4,5-triphosphate receptor and voltage-dependent anion channel protein expression and elevated the number of ER-mitochondria contact points and mitochondrial calcium concentrations. Our data suggest an important role of ER-mitochondria contacts and cross-talk in AD pathology.
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Affiliation(s)
- Louise Hedskog
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Catarina Moreira Pinho
- Department of Biochemistry and Biophysics, Stockholm University, 106 91 Stockholm, Sweden
| | - Riccardo Filadi
- Department of Biomedical Sciences, University of Padua, 35121 Padua, Italy
| | - Annica Rönnbäck
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Laura Hertwig
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Birgitta Wiehager
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Pia Larssen
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Sandra Gellhaar
- Department of Neuroscience, Karolinska Institutet, 171 65 Stockholm, Sweden; and
| | - Anna Sandebring
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Marie Westerlund
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Caroline Graff
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
- Genetics Unit, Department of Geriatric Medicine, Karolinska University Hospital, 141 86 Stockholm, Sweden
| | - Bengt Winblad
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Dagmar Galter
- Department of Neuroscience, Karolinska Institutet, 171 65 Stockholm, Sweden; and
| | - Homira Behbahani
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Paola Pizzo
- Department of Biomedical Sciences, University of Padua, 35121 Padua, Italy
| | - Elzbieta Glaser
- Department of Biochemistry and Biophysics, Stockholm University, 106 91 Stockholm, Sweden
| | - Maria Ankarcrona
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Alzheimer’s Disease Research Center, Karolinska Institutet, 141 86 Stockholm, Sweden
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Hedskog L, Zhang S, Ankarcrona M. Strategic role for mitochondria in Alzheimer's disease and cancer. Antioxid Redox Signal 2012; 16:1476-91. [PMID: 21902456 DOI: 10.1089/ars.2011.4259] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
SIGNIFICANCE Detailed knowledge about cell death and cell survival mechanisms and how these pathways are impaired in neurodegenerative disorders and cancer forms the basis for future drug development for these diseases that affect millions of people around the world. RECENT ADVANCES In neurodegenerative disorders such as Alzheimer's disease (AD), cell death pathways are inappropriately activated, resulting in neuronal cell death. In contrast, cancer cells develop resistance to apoptosis by regulating anti-apoptotic proteins signaling via mitochondria. Mounting evidence shows that mitochondrial function is central in both cancer and AD. Cancer cells typically shut down oxidative phosphorylation (OXPHOS) in mitochondria and switch to glycolysis for ATP production, making them resistant to hypoxia. In AD, for example, amyloid-β peptide (Aβ) and reactive oxygen species impair mitochondrial function. Neurons therefore also switch to glycolysis to maintain ATP production and to produce molecules involved in antioxidant metabolism in an attempt to survive. CRITICAL ISSUES One critical difference between cancer cells and neurons is that cancer cells can survive without OXPHOS, while neurons are dependent on OXPHOS for long-term survival. FUTURE DIRECTIONS This review will focus on these abnormalities of mitochondrial function shared in AD and cancer and discuss the potential mechanisms underlying links that may be key steps in the development of therapeutic strategies.
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Affiliation(s)
- Louise Hedskog
- Department of Neurobiology, Care Sciences and Society (NVS), KI-Alzheimer Disease Research Center, Karolinska Institutet, Stockholm, Sweden
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Bell KFS, Hardingham GE. The influence of synaptic activity on neuronal health. Curr Opin Neurobiol 2011; 21:299-305. [PMID: 21292474 DOI: 10.1016/j.conb.2011.01.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Accepted: 01/07/2011] [Indexed: 12/11/2022]
Abstract
According to the theory of neuronal health, neurons exist in a spectrum of states ranging from highly resilient to vulnerable. An unhealthy neuron may be rendered dysfunctional or non-viable by an insult that would ordinarily be non-toxic to a healthy neuron. Over the years it has become clear that a neuron's health is subject to dynamic regulation by electrical or synaptic activity. This review highlights recently identified activity dependent signalling events that boost neuronal health through the transcriptional control of pro-apoptotic and anti-apoptotic genes, the enhancement of antioxidant defences, and the regulation of mitochondrial and neurotrophic factor availability. Furthermore, activity dependent signals have recently been shown to influence a variety of events specific to individual neurodegenerative diseases, which will also be highlighted.
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Affiliation(s)
- Karen F S Bell
- Centre for Integrative Physiology, University of Edinburgh, Edinburgh EH8 9XD, UK
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