PMID- 19828810 OWN - NLM STAT- MEDLINE DCOM- 20091030 LR - 20220408 IS - 1529-2401 (Electronic) IS - 0270-6474 (Print) IS - 0270-6474 (Linking) VI - 29 IP - 41 DP - 2009 Oct 14 TI - Cognitive decline in Alzheimer's disease is associated with selective changes in calcineurin/NFAT signaling. PG - 12957-69 LID - 10.1523/JNEUROSCI.1064-09.2009 [doi] AB - Upon activation by calcineurin, the nuclear factor of activated T-cells (NFAT) translocates to the nucleus and guides the transcription of numerous molecules involved in inflammation and Ca(2+) dysregulation, both of which are prominent features of Alzheimer's disease (AD). However, NFAT signaling in AD remains relatively uninvestigated. Using isolated cytosolic and nuclear fractions prepared from rapid-autopsy postmortem human brain tissue, we show that NFATs 1 and 3 shifted to nuclear compartments in the hippocampus at different stages of neuropathology and cognitive decline, whereas NFAT2 remained unchanged. NFAT1 exhibited greater association with isolated nuclear fractions in subjects with mild cognitive impairment (MCI), whereas NFAT3 showed a strong nuclear bias in subjects with severe dementia and AD. Similar to NFAT1, calcineurin-Aalpha also exhibited a nuclear bias in the early stages of cognitive decline. But, unlike NFAT1 and similar to NFAT3, the nuclear bias for calcineurin became more pronounced as cognition worsened. Changes in calcineurin/NFAT3 were directly correlated to soluble amyloid-beta (Abeta((1-42))) levels in postmortem hippocampus, and oligomeric Abeta, in particular, robustly stimulated NFAT activation in primary rat astrocyte cultures. Oligomeric Abeta also caused a significant reduction in excitatory amino acid transporter 2 (EAAT2) protein levels in astrocyte cultures, which was blocked by NFAT inhibition. Moreover, inhibition of astrocytic NFAT activity in mixed cultures ameliorated Abeta-dependent elevations in glutamate and neuronal death. The results suggest that NFAT signaling is selectively altered in AD and may play an important role in driving Abeta-mediated neurodegeneration. FAU - Abdul, Hafiz Mohmmad AU - Abdul HM AD - The Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky 40536, USA. FAU - Sama, Michelle A AU - Sama MA FAU - Furman, Jennifer L AU - Furman JL FAU - Mathis, Diana M AU - Mathis DM FAU - Beckett, Tina L AU - Beckett TL FAU - Weidner, Adam M AU - Weidner AM FAU - Patel, Ela S AU - Patel ES FAU - Baig, Irfan AU - Baig I FAU - Murphy, M Paul AU - Murphy MP FAU - LeVine, Harry 3rd AU - LeVine H 3rd FAU - Kraner, Susan D AU - Kraner SD FAU - Norris, Christopher M AU - Norris CM LA - eng GR - P01 AG010836-14/AG/NIA NIH HHS/United States GR - P50 AG005144-19/AG/NIA NIH HHS/United States GR - RF1 AG027297/AG/NIA NIH HHS/United States GR - P01 AG010836-13/AG/NIA NIH HHS/United States GR - P01 AG010836/AG/NIA NIH HHS/United States GR - K01 AG024190-04/AG/NIA NIH HHS/United States GR - R01 AG027297-03/AG/NIA NIH HHS/United States GR - AG024190/AG/NIA NIH HHS/United States GR - AG010836/AG/NIA NIH HHS/United States GR - P30 AG028383/AG/NIA NIH HHS/United States GR - R01 AG027297/AG/NIA NIH HHS/United States GR - K01 AG024190-05/AG/NIA NIH HHS/United States GR - AG02797/AG/NIA NIH HHS/United States GR - AG028383/AG/NIA NIH HHS/United States GR - K01 AG024190-02/AG/NIA NIH HHS/United States GR - P50 AG005144-18/AG/NIA NIH HHS/United States GR - R01 AG027297-02/AG/NIA NIH HHS/United States GR - P50 AG005144-17/AG/NIA NIH HHS/United States GR - P01 AG010836-12/AG/NIA NIH HHS/United States GR - K01 AG024190-03/AG/NIA NIH HHS/United States GR - P50 AG005144-20/AG/NIA NIH HHS/United States GR - K01 AG024190/AG/NIA NIH HHS/United States GR - P50 AG005144/AG/NIA NIH HHS/United States GR - R01 AG027297-01A1/AG/NIA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurosci JT - The Journal of neuroscience : the official journal of the Society for Neuroscience JID - 8102140 RN - 0 (Amyloid beta-Peptides) RN - 0 (Glial Fibrillary Acidic Protein) RN - 0 (NFATC Transcription Factors) RN - 0 (Peptide Fragments) RN - 0 (amyloid beta-protein (1-42)) RN - 0 (enhanced green fluorescent protein) RN - 147336-22-9 (Green Fluorescent Proteins) RN - 3KX376GY7L (Glutamic Acid) RN - EC 3.1.3.16 (Calcineurin) SB - IM MH - Aged MH - Aged, 80 and over MH - Alzheimer Disease/complications/metabolism MH - Amyloid beta-Peptides/pharmacology MH - Analysis of Variance MH - Animals MH - Astrocytes/drug effects MH - Brain/metabolism/pathology MH - Calcineurin/*metabolism MH - Cells, Cultured MH - Cognition Disorders/*etiology/*metabolism/pathology MH - Embryo, Mammalian MH - Female MH - Gene Expression Regulation/drug effects MH - Glial Fibrillary Acidic Protein/metabolism MH - Glutamic Acid/metabolism MH - Green Fluorescent Proteins/genetics MH - Hippocampus/cytology MH - Humans MH - Male MH - NFATC Transcription Factors/*metabolism MH - Peptide Fragments/pharmacology MH - Protein Transport/genetics MH - Rats MH - Signal Transduction/*physiology MH - Transfection PMC - PMC2782445 MID - NIHMS158049 EDAT- 2009/10/16 06:00 MHDA- 2009/10/31 06:00 PMCR- 2010/04/14 CRDT- 2009/10/16 06:00 PHST- 2009/10/16 06:00 [entrez] PHST- 2009/10/16 06:00 [pubmed] PHST- 2009/10/31 06:00 [medline] PHST- 2010/04/14 00:00 [pmc-release] AID - 29/41/12957 [pii] AID - 3534819 [pii] AID - 10.1523/JNEUROSCI.1064-09.2009 [doi] PST - ppublish SO - J Neurosci. 2009 Oct 14;29(41):12957-69. doi: 10.1523/JNEUROSCI.1064-09.2009.