Repressed SIRT1/PGC-1alpha pathway and mitochondrial disintegration in iPSC-derived RPE disease model of age-related macular degeneration. (Record no. 2803)

MARC details
000 -LEADER
fixed length control field 04543nam a22006257a 4500
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 171106s20162016 xxu||||| |||| 00| 0 eng d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 1479-5876
040 ## - CATALOGING SOURCE
Original cataloging agency Ovid MEDLINE(R)
099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC)
PMID 27998274
245 ## - TITLE STATEMENT
Title Repressed SIRT1/PGC-1alpha pathway and mitochondrial disintegration in iPSC-derived RPE disease model of age-related macular degeneration.
251 ## - Source
Source Journal of Translational Medicine. 14(1):344, 2016 Dec 20
252 ## - Abbreviated Source
Abbreviated source J. transl. med.. 14(1):344, 2016 Dec 20
253 ## - Journal Name
Journal name Journal of translational medicine
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Year 2016
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Manufacturer FY2017
266 ## - Date added to catalog
Date added to catalog 2017-11-06
501 ## - WITH NOTE
Local holdings Available online through MWHC library: 2003 - present
520 ## - SUMMARY, ETC.
Abstract BACKGROUND: Study of age related macular degeneration (AMD) has been hampered by lack of human models that represent the complexity of the disease. Here we have developed a human in vitro disease model of AMD to investigate the underlying AMD disease mechanisms.
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Abstract CONCLUSIONS: Our studies suggest SIRT1/PGC-1alpha as underlying pathways contributing to AMD pathophysiology, and open new avenues for development of targeted drugs for treatment of this devastating neurodegenerative disease of the visual system.
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Abstract METHODS: Generation of iPSCs from retinal pigment epithelium (RPE) of AMD donors, age-matched normal donors, skin fibroblasts of a dry AMD patient, and differentiation of iPSCs into RPE (AMD RPE-iPSC-RPE, normal RPE-iPSC-RPE and AMD Skin-iPSC-RPE, respectively). Immunostaining, cell viability assay and reactive oxygen species (ROS) production under oxidative stress conditions, electron microscopy (EM) imaging, ATP production and glycogen concentration assays, quantitative real time PCR, western blot, karyotyping.
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Abstract RESULTS: The AMD RPE-iPSC-RPE and AMD Skin-iPSC-RPE present functional impairment and exhibit distinct disease phenotypes compared to RPE-iPSC-RPE generated from normal donors (Normal RPE-iPSC-RPE). The AMD RPE-iPSC-RPE and AMD Skin-iPSC-RPE show increased susceptibility to oxidative stress and produced higher levels of reactive oxygen species (ROS) under stress in accordance with recent reports. The susceptibility to oxidative stress-induced cell death in AMD RPE-iPSC-RPE and Skin-iPSC-RPE was consistent with inability of the AMD RPE-iPSC-RPE and Skin-iPSC-RPE to increase SOD2 expression under oxidative stress. Phenotypic analysis revealed disintegrated mitochondria, accumulation of autophagosomes and lipid droplets in AMD RPE-iPSC-RPE and AMD Skin-iPSC-RPE. Mitochondrial activity was significantly lower in AMD RPE-iPSC-RPE and AMD Skin-iPSC-RPE compared to normal cells and glycogen concentration was significantly increased in the diseased cells. Furthermore, Peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1alpha), a regulator of mitochondrial biogenesis and function was repressed, and lower expression levels of NAD-dependent deacetylase sirtuin1 (SIRT1) were found in AMD RPE-iPSC-RPE and AMD Skin-iPSC-RPE as compared to normal RPE-iPSC-RPE.
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Language note English
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Topical term or geographic name entry element *Induced Pluripotent Stem Cells/pa [Pathology]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element *Macular Degeneration/me [Metabolism]
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Topical term or geographic name entry element *Macular Degeneration/pa [Pathology]
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Topical term or geographic name entry element *Mitochondria/me [Metabolism]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element *Models, Biological
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element *Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/me [Metabolism]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element *Retinal Pigment Epithelium/pa [Pathology]
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Topical term or geographic name entry element *Sirtuin 1/me [Metabolism]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Aged
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Aged, 80 and over
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Cell Differentiation
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Female
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Humans
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Induced Pluripotent Stem Cells/me [Metabolism]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Induced Pluripotent Stem Cells/ul [Ultrastructure]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Male
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Middle Aged
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Oxidative Stress
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Phagocytosis
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Phenotype
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Reactive Oxygen Species/me [Metabolism]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Retinal Pigment Epithelium/ul [Ultrastructure]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Signal Transduction
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Skin/pa [Pathology]
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Superoxide Dismutase/me [Metabolism]
651 ## - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
Institution MedStar Washington Hospital Center
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Department Ophthalmology
657 ## - INDEX TERM--FUNCTION
Medline publication type Journal Article
700 ## - ADDED ENTRY--PERSONAL NAME
Local Authors Berinstein, Daniel M
790 ## - Authors
All authors Berinstein DM, Cao H, Cheng SK, Chu Y, Golestaneh N, Poliakov E
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DOI <a href="https://dx.doi.org/10.1186/s12967-016-1101-8">https://dx.doi.org/10.1186/s12967-016-1101-8</a>
Public note https://dx.doi.org/10.1186/s12967-016-1101-8
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Journal Article
Item type description Article
Holdings
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