anti-glua2 n terminus (Millipore)
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Anti Glua2 N Terminus, supplied by Millipore, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/glua2+n+terminus/glua1+antibody/pmc10943477-360-8-11
Average 90 stars, based on 1 article reviews
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1) Product Images from "Activation of innate immune receptor TLR9 by mitochondrial DNA plays essential roles in the chemical long-term depression of hippocampal neurons"
Article Title: Activation of innate immune receptor TLR9 by mitochondrial DNA plays essential roles in the chemical long-term depression of hippocampal neurons
Journal: The Journal of Biological Chemistry
doi: 10.1016/j.jbc.2024.105744
Figure Legend Snippet: ODN2088 blocks NMDA-induced internalization of GluA2 containing AMPA receptors. A , immunocytochemical analysis of the effects of ODN2088 on the NMDA-induced reduction of cell surface GluA2. Cultured hippocampal neurons expressing hemagglutinin (HA)-tagged GluA2 were treated with 50 μM NMDA for 10 min without or with ODN2088 (1 μM, 10 min). After fixation, cell surface HA-GluA2 were stained ( red ) and after treatment with Triton X-100, neurons were immunostained for total HA-GluA2 ( blue ). The dendritic regions marked by squares are enlarged in the panels to the right . The scale bar represents 10 μm. Lower graph : quantification of the NMDA-induced reduction in the ratio of surface to total HA-GluA2 fluorescence intensities. Data are represented as the ratio of surface HA-GluA2 immunoreactivity to total HA-GluA2 immunoreactivity. The ratio of control neurons without ODN2088 treatment was defined as 100% (n = 22). Data are presented as mean + SEMs and individual data points. p value by one-way ANOVA, followed by Student-Newman-Keuls post hoc test. B and C , antibody-feeding assay evaluating the effects of ODN2088 on NMDA-induced internalization of cell surface HA-GluA2 ( B ) and endogenous GluA2 ( C ). B , living neurons expressing exogenous HA-GluA2 were labeled with anti-HA antibodies. Neurons were treated with 50 μM NMDA for 10 min with or without ODN2088 treatment. After fixation, cell surface HA antibodies were stained ( red ), and after treatment with Triton X-100, internalized HA antibodies were stained ( green ). The dendritic regions marked by squares are magnified in the panels to the right . The scale bar represents 10 μm. Lower graph : quantification of the NMDA-induced increase in the ratio of internalized to surface HA-antibody fluorescence intensities. The ratio of control neurons without ODN2088 treatment was defined as 100% (n = 14). Data are presented as mean + SEM and individual data points. p value by one-way ANOVA followed by Student−Newman−Keuls post hoc test. C , endogenous GluA2 in living neurons was labeled with antibodies against the extracellular region of GluA2. Neurons were treated with 50 μM NMDA for 10 min with or without ODN2088 treatment. After fixation, cell surface GluA2 antibodies were stained ( red ), and after treatment with Triton X-100, internalized GluA2 antibodies ( green ) and the dendritic marker MAP2 were stained ( blue/white ). The dendritic regions marked by squares are enlarged in the panels to the right . The scale bar represents 10 μm. Lower graph : quantification of the NMDA-induced increase in the ratio of internalized to surface GluA2-antibody fluorescence intensities. The ratio of control neurons without ODN2088 treatment was defined as 100% (n = 11–13). Data are presented as mean + SEM and individual data points. p value by one-way ANOVA followed by Student-Newman-Keuls post hoc test. D , biotinylation assay of endogenous GluA2. Hippocampal cultures were stimulated by NMDA without or with ODN2088. Cell surface proteins were biotinylated and pulled down from the total cell lysates. The amount of GluA2 proteins in the pulled down fraction ( left gel ) and total cell lysate fraction ( right gel ) were analyzed with the immunoblot analysis. NMDA stimulation decreased the amount of the cell surface GluA2, and treatment with ODN2088 blocked the NMDA effect. Right graph : the intensity of the GluA2 band in the biotinylated fraction was normalized to that of the total cell lysate fraction. The ratio of biotinylated/total GluA2 in the control cultures without ODN2088 treatment was arbitrarily set to 100% (n = 4 each). Data are presented as mean + SEM and individual data points. p value by Kruskal–Wallis test and Student-Newman-Keuls post hoc test. AMPA, α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid; NMDA, N-methyl-d-aspartate.
Techniques Used: Cell Culture, Expressing, Staining, Fluorescence, Feeding Assay, Labeling, Marker, Cell Surface Biotinylation Assay, Western Blot
Figure Legend Snippet: TLRs function on NMDA-induced reduction of cell surface GluA2. A and B , immunocytochemical analysis of the effects of TLR3 knockdown ( A ) and TLR7 knockdown ( B ) on the NMDA-induced endocytosis of cell surface GluA2. Cultured hippocampal neurons expressing HA-tagged GluA2 with siRNA were treated with 50 μM NMDA for 10 min. Following fixation, the cell surface HA-GluA2 ( red ) and total HA-GluA2 ( blue ) were stained. The dendritic regions marked by squares were enlarged in the panels to the right . The scale bar represents 10 μm. Right graph : quantification of NMDA-induced reduction in the ratio of surface to total HA-GluA2 fluorescence intensity. Data are represented as the ratio of surface HA-GluA2 immunoreactivity normalized by total HA-GluA2 immunoreactivity. The ratio of control neurons was defined as 100% (n = 14). Data are presented as mean + SEM and individual data points. p value by two-tailed Student’s t test. C , immunocytochemical analysis of the effects of TLR9 knockdown on the NMDA-induced endocytosis of cell surface GluA2. Cultured hippocampal neurons expressing HA-tagged GluA2 with scrambled RNA ( top ), siRNA ( middle ), and siRNA with TLR9 resistant -FL ( bottom ) were treated with 50 μM NMDA for 10 min. Following fixation, the cell surface HA-GluA2 ( red ), TLR9 resistant -FL ( green ), and total HA-GluA2 ( blue ) were stained. The dendritic regions marked by squares were enlarged in the panels to the right . The scale bar represents 10 μm. Right graph : quantification of NMDA-induced reduction in the ratio of surface to total GluA2 fluorescence intensity. Data are represented as the ratio of surface HA-GluA2 immunoreactivity normalized by total HA-GluA2 immunoreactivity. The ratio of scramble RNA transfected control neurons was defined as 100% (n = 18–21). Data are presented as mean + SEM and individual data points. p value by Kruskal–Wallis test and Dunn’s post hoc test. HA, hemagglutinin; TLR, toll-like receptor; NMDA, N-methyl-d-aspartate.
Techniques Used: Cell Culture, Expressing, Staining, Fluorescence, Two Tailed Test, Transfection
Figure Legend Snippet: Mitochondrial morphological changes and mitophagy induced by NMDA treatment. A , cultured hippocampal neurons expressing mitochondria-targeted cyan fluorescent protein (mito-CFP) were stimulated with NMDA and observed for up to 7 min. Images of the mitochondria every 1 min after NMDA stimulation from the ODN2088 untreated neuron ( upper panel ) and ODN2088 treated neuron ( lower panel ). The scale bar represents 10 μm. B , quantitative analysis of the length of mitochondria. Cultured hippocampal neurons expressing mito-CFP were stimulated with NMDA for 7 min in the absence or presence of ODN2088. After fixation, the length of mitochondria was quantified. n = 37 to 50 mitochondria from three independent cultures. Data are presented as mean + SEM and individual data points. p value by Kruskal–Wallis test and Dunn’s post hoc test. C , histogram of mitochondrial length in the ODN2088 untreated neurons. White and black bars indicate the frequency of mitochondria without (control) or with the NMDA stimulation, respectively. D , schematic drawing of lipidation and translocation of microtubule-associated protein 1 light chain 3 (LC3) from the cytosol to the isolation membrane upon autophagy induction. Phosphatidylethanolamine is attached to cytosolic LC3 by the Atg16L complex and lipidated LC3 translocates to the isolation membrane of the autophagosome ( , ). E , cultured hippocampal neurons expressing mito-CFP and mCherry-LC3B were stimulated with NMDA and observed for up to 7 min. Images of the neurons before and 7 min after NMDA stimulation are shown. The dendritic regions enclosed by the white squares are magnified in the right panels . The scale bars represent 10 μm in the left panels and 5 μm in the right panels . Arrows indicate the mitochondria surrounded by mCherry-LC3B. Arrowheads indicate mitochondria outside autophagosomes. F , high-resolution images of mCherry-LC3 and mito-CFP from the NMDA-untreated (control) and NMDA-stimulated neurons. The scale bars represent 5 μm. G , line scan of the fluorescence intensities of mCherry-LC3 and mito-CFP. The mCherry-LC3 ( red ) and mito-CFP ( cyan ) fluorescence were quantified along the dendrites indicated by white arrows in (F), indicating that the mito-CFP signal was surrounded by the mCherry-LC3 signal in the NMDA-stimulated neuron, whereas, mCherry-LC3 uniformly distributed along the dendrite in the control neuron. H , quantitative analysis of the number of mitophagy within the 100 μm dendrite. Data are presented as mean + SEM and individual data points. n = 18 from three independent cultures. p value by two-tailed Student’s t test. I , cultured hippocampal neurons expressing HA-GluA2 were pretreated with Mdivi-1 and stimulated with NMDA. The cell surface HA-GluA2 ( red ) and total HA-GluA2 ( blue ) were stained. The dendritic regions marked by squares were enlarged in the panels to the right . The scale bars represent 10 μm. Right graph : quantification of NMDA-induced reduction in the ratio of the surface to total GluA2 fluorescence intensities. Data are represented as the ratio of surface HA-GluA2 immunoreactivity normalized by total HA-GluA2 immunoreactivity. The ratio in Mdivi-1–untreated control neurons was defined as 100% (n = 14–15). Data are presented as mean + SEM and individual data points. ∗ p < 0.05 by one-way ANOVA and Student-Newman-Keuls post hoc test. HA, hemagglutinin; Mdivi, mitochondrial division inhibitor; NMDA, N-methyl-d-aspartate.
Techniques Used: Cell Culture, Expressing, Translocation Assay, Isolation, Membrane, Fluorescence, Two Tailed Test, Staining
Figure Legend Snippet: Mitochondrial DNA amount affected the NMDA-induced internalization of AMPA receptors. A , dideoxycytidine (ddC) reduced the amount of mitochondrial DNA (mtDNA). Cultured hippocampal neurons were treated with ddC for 96 h and stained by the antiMAP2 and DNA antibodies. The fluorescence intensities of DNA staining within the dendrites were quantified. The average fluorescence intensities of ddC untreated (control) neurons were defined as 100% (n = 16). Data are presented as mean + SEM and individual data points. p value by two-tailed Student’s t test. The scale bars represent 10 μm. B , cultured hippocampal neurons expressing HA-GluA2 were pretreated with ddC and stimulated with NMDA. The cell surface HA-GluA2 ( red ) and total HA-GluA2 ( blue ) were stained. The dendritic regions marked by squares were enlarged in the panels to the right . The scale bars represent 10 μm. Lower graph : quantification of NMDA-induced reduction in the ratio of the surface to total GluA2 fluorescence intensities. Data are represented as the ratio of surface HA-GluA2 immunoreactivity normalized by total HA-GluA2 immunoreactivity. The ratio in ddC-untreated control neurons was defined as 100% (n = 15). Data are presented as mean + SEM and individual data points. p value by Kruskal–Wallis test and Student-Newman-Keuls post hoc test. C , ddC effects on the NMDA-induced AMPA receptor endocytosis in the TLR9 knocked down neurons. The ratio in ddC-untreated control neurons was defined as 100% (n = 16). Data are presented as mean + SEM and individual data points. No significant difference was detected by one-way ANOVA. The scale bars represent 10 μm. AMPA, α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid; HA, hemagglutinin; NMDA, N-methyl-d-aspartate; TLR, toll-like receptor.
Techniques Used: Cell Culture, Staining, Fluorescence, Two Tailed Test, Expressing
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