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Immunofluorescent Analysis of MAP2 in Treated Rat Hippocampi

PEA decreases astrocyte activation in organotypic cultures of rat hippocampi and rescues neuronal CA3 damage caused by Abeta challenge. Abeta-challenged (1 ug/ml) slices of rat hippocampi were treated for 24 hours with PEA (0.1 uM) in the presence of the selective PPAR? antagonist (GW9662, 9 nM) or the selective PPARalpha antagonist (MK886, 3 uM). Representative photomicrographs of the CA3 region showing the results of immunofluorescence experiments aimed at investigating the effect of treatments on astrocyte activation and neuronal loss, as determined by immunostaining for GFAP (green) and MAP2 (red) alone or merged, respectively. Nuclei were stained with Hoechst (blue). Scale bar: 10 um. Arrows in the photomicrographs indicate astrocyte infiltration events and apoptotic condensation in the nuclei of adjacent neurons.

Immunocytochemistry/Immunofluorescence Staining of MAP2 in Human iPS Derived Neurons

Human iPS derived neurons labeled with MAP2 (in green) at 1:5000 dilution. Image from verified customer review.

Immunohistochemical Analysis of MAP2 in Frozen Retina

MAP2 in the retina detected by NB300-213 antibody (magenta). DAPI (blue). Image from verified customer review.

Immunocytochemistry/Immunofluorescence Staining of MAP2 in Human DA Neurons

Human DA neurons 28 DIV stained with MAP2 antibody (blue). ICC/IF image submitted by a verified customer review.

Immunocytochemistry/Immunofluorescence Staining of MAP2 in Astrocyte/Neuron Mixed Cultures

PEA inhibits astroglial proliferation and reduces neuronal loss in mixed neuroglia co-cultures exposed to Abeta. Abeta-challenged (1 ug/ml) astrocyte/neuron mixed cultures were treated with PEA (0.1 uM) i9662, 9 nM) on the presence of the selective PPAR-gamma antagonist (GWr the selective PPARalpha antagonist (MK886, 3 uM). After 24 hours of treatment, cells were processed for analyses. Immunofluorescence photomicrographs showing the effect of the treatments on astrocyte proliferation and neuronal loss, as determined by immunostaining for GFAP (green) and MAP2 (red), respectively. Arrows indicate chromatin condensation in nuclei stained with Hoechst dye (blue) as markers of apoptotic events. Scale bar: 10 um. Image collected and cropped by CiteAb from the following publication (https://jneuroinflammation.biomedcentral.com/articles/10.1186/1742-2094-9-49), licensed under a CC-BY license.

Immunohistochemical Staining of MAP2 in Paraffin Embedded Mouse Hippocampus

Oxytocin receptors (Oxtr) are expressed in mouse hippocampus. Confocal images of Oxtr-expressing neurons in the CA1 subfields of the medial and caudal hippocampus from OxtrVn/+ sections, triple stained with antibodies directed against NeuN (red), MAP2 (magenta), and Venus (green). Image collected and cropped by CiteAb from the following publication (https://elifesciences.org/articles/22466), licensed under a CC-BY license.

Immunohistochemical Staining of MAP2 in Paraffin Embedded Mouse Hippocampus

Differential and neuron-specific Oxtr expression in mouse hippocampus. Immunohistochemical mapping of Venus expression in coronal sections of the rostral, medial, and caudal hippocampus from three weeks old OxtrVn/+ mice triple-labeled with antibodies against NeuN (red), Venus (green), and Map2 (magenta). Image collected and cropped by CiteAb from the following publication (https://elifesciences.org/articles/22466), licensed under a CC-BY license.

Western Blot: MAP2 Antibody [NB300-213] -

ATM activation by chloroquine alleviates senescence.(a) Immunoblots showing protein levels of ATM, NBS1, and RAP80 in human skin fibroblasts (HSFs). A gradually increased level of p16 indicates cellular senescence, while elevated gammaH2AX level indicates accumulated DNA damage. (b) Immunoblots showing protein levels of ATM, NBS1, and RAP80 in mouse embryonic fibroblasts (MEFs). (c) Immunoblots showing protein levels of ATM, NBS1, and RAP80 in brain tissues isolated from 3-, 10-, and 18-month-old male mice. (d) SA-beta -Gal staining in HSFs treated with sh-ATM or scramble shRNA. Scale bar, 100 µm. (e) Quantification of SA-beta -Gal-positive staining of (d) from five views randomly captured for each group. Data represent means ± SEM. ***p<0.001. (f) Immunoblots showing increased gammaH2AX and unaffected LC3I/II in HSFs treated with sh-ATM or scramble shRNA. (g) Immunoblots showing protein levels of pS1981 ATM, gammaH2AX, and cleaved caspase-3 in HSFs treated with 10 μM of CQ for indicated time. (h) SA-beta -Gal staining in HSFs expressing either scramble or ATM shRNA treated with 1 μM CQ or DMSO (12 hr). Scale bar, 100 µm. (i) Quantification of SA-beta -Gal-positive staining of (h) from five views randomly captured for each group. Data represent means ± SEM. ***p<0.001; ‘N.S.’ indicates no significant difference. (j) HSFs at passage 20 were continuously cultured with 1 μM CQ or DMSO, and cell number was calculated at each passage. Data represent means ± SEM. ***p<0.01. (k) Immunoblots showing protein levels of gammaH2AX, p62, and LC3 in MEFs treated with 1 μM CQ or DMSO. Note that CQ had little effect on the expression levels of p62 and LC3. (l) MEFs at passage one were continuously cultured in 20% O2 with 1 μM CQ or DMSO, and cell number was determined at each passage. Data represent means ± SEM. ***p<0.01.10.7554/eLife.34836.006Figure 1—source data 1.Statistical analysis for SA-beta -Gal positive staining.10.7554/eLife.34836.007Figure 1—source data 2.Statistical analysis for EdU positive staining.Statistical analysis for SA-beta -Gal positive staining.Statistical analysis for EdU positive staining.Decline of ATM-centered DNA repair machinery during senescence.(a) Real-time PCR analysis showing progressively elevated mRNA level of p21 in continuously cultured human endothelial cells (HUVEC). **p<0.01. (b) SA-beta -Gal staining of HUVEC cells at indicated passages. Scale bar, 100 µm. (c) HUVEC cells at P21, P18, P12, and P7 were subjected to transcriptome analysis. A minimum average rpkm value of 1.0 and maximum 10% fluctuation in young cells (P7 Vs P12) was set as the threshold. Genes were downregulated by more than 20% in pre-senescent, and senescent cells compared with young cells (P21/P18 Vs P12/P7) were selected. (d) Pathway analysis of genes identified in (c) by STRING v10. (e) Downregulation of ATM-related DNA repair genes during senescence.ATM regulates replicative senescence.(a) Representative images showing cells treated with Scramble (sh-NC) or sh-ATM. (b) Percent EdU-positive cells in sh-NC or sh-ATM treated HSFs. Views were randomly captured and at least 100 cells were included in each group. Data represent means ± SEM. ***p<0.001. (c) Immunoblots showing protein levels of pS1981 ATM and gammaH2AX in HSFs treated with 10 μM chloroquine (CQ) or 0.4 μM CPT (4 hr). Note that CQ activated ATM (pS1981) without increasing gammaH2AX, while CPT activated ATM accompanied by increased gammaH2AX. (d) SA-beta -Gal staining in primary MEFs treated with 1 μM CQ or DMSO. Scale bar, 100 µm. (e) Quantification of SA-beta -Gal-positive staining of (d) from five views randomly captured for each group. Data represent means ± SEM. ***p<0.001. (f) Percent EdU-positive cells in HSFs treated with DMSO, 1 μM or 10 μM CQ. Views were randomly captured and at least 100 cells were included in each group. Data represent means ± SEM. ***p<0.001. (g) Representative images showing proliferative HSFs treated with different doses of CQ for the indicated time points. (h) Immunoblots showing LC3B levels in HSFs treated with indicated dose of CQ for indicated period of time. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/29717979), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] -

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] - SUMO1 conjugates are not localized to amyloid plaques. (a) Sagittal brain sections of 24‐week‐old KI/AD & WT/AD animals were stained using anti‐HA antibodies (red), 6E10 antibodies (green) that label amyloid beta 1–42 among other amyloid beta variants (epitope lies within amino acids 3–8 of amyloid beta) & anti‐MAP2 antibodies (blue). Sections of the hippocampal subiculum are shown. Images are representatives of three independent experiments. Scale bar, 25 μm. (b) Anti‐HA signal intensity in amyloid plaques & in cell nuclei was quantified using ImageJ (N = 3, ***significance between WT/AD & KI/AD, p = .0007 in Student's t test) Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/29633471), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] -

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] - Oxytocin receptors (Oxtr) are expressed in mouse hippocampus.(a & b) Coronal sections of the hippocampus (a) & striatum (b) from OxtrVn/+ & Oxtr+/+ mice stained for Venus & DAPI (ac, anterior commisure; cx, cortex; hip, hippocampus; str, striatum). (c) Confocal images of rostral Oxtr+/+ & OxtrVn/+ brain sections including hippocampus, double-labeled for Venus (green) & NeuN (red). (d) Confocal images of Oxtr-expressing neurons in the CA1 subfields of the medial & caudal hippocampus from OxtrVn/+ sections, triple stained with antibodies directed against NeuN (red), MAP2 (magenta), & Venus (green). (e) Representative images of hippocampal mass cultures obtained from OxtrVn/+ mice at P0 mice & processed for immunofluorescence staining at 5, 10, & 14 DIV using antibodies to Venus (green) & GAD67 (red), & DAPI (blue). (f) Quantitative analysis of Venus-positive neurons with (GAD67+) & without colabeling for GAD67 (GAD67-) in hippocampal mass cultures obtained from OxtrVn/+ mice at P0 mice & processed for immunofluorescence staining at 5, 10, & 14 DIV. Data are shown as mean ± SEM.DOI:http://dx.doi.org/10.7554/eLife.22466.015 Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/28231043), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] -

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] - SUMO1 conjugates remain nuclear during increased amyloid burden. (a) Western blot analysis of subcellular fractions of 36‐week‐old KI/WT & KI/AD mouse brain using anti‐HA antibody (upper two panels) & antibodies to GluN1 (a marker of the postsynaptic compartment) & Synaptophysin (a marker of the presynaptic compartment) to validate the fractionation procedure (lower two panels). H, homogenate; P1, nuclear pellet; S1, supernatant after P1 sedimentation; P2, crude synaptosomal pellet; S2, supernatant after P2 sedimentation; LP1, lysed synaptosomal membranes; LS1, supernatant after LP1 sedimentation; LP2, pellet after LS1 sedimentation, SPM, synaptic plasma membranes. Bracket indicates the anti‐HA signal representing SUMOylation, arrow indicates RanGAP1, stars indicate nonspecific signal detected by the anti‐HA antibody. (b) Brain sagittal sections of aged (36 weeks old) KI/AD (left panels) & WT/AD (right panels) mice were immunostained using antibodies directed against HA (red, labels HA‐HA conjugates), MAP2 (green, labels neuronal somata & dendrites), & Synapsin1 (Syn1, magenta, labels synapses). The images show triple‐labeled neurons of hippocampal subiculum (b), cortical layer 5 (c), & proximal apical dendrite from hippocampal CA3 (d). The white line shows the orientation of the line‐scan used to generate the image stack shown in the bottom side view. Scale bar: 10 μm. Note that the anti‐HA immunosignal is mainly located in neuronal nuclei, only background staining is observed in WT/AD mice. Little anti‐HA signal is observed along MAP2‐positive structures & does not colocalize with Synapsin1 Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/29633471), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] -

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] - Validation of the CRISPR/Cas9 Alsin-/- cells in iPSC, NPC & iPSC-sMN.(A) Electrophoresis result of the PCR reaction using primers flanking exon three & within exon 3. Homozygous deletion was confirmed by the absence of a 2.8 kb. (B) Protein lysates from WT KOLF & Alsin-/- iPSC were loaded onto SDS-PAGE & immunoblotted with Alsin antibody. A band detected at ~184 kDa, but absent in Alsin-/-, corresponds to full-length Alsin. (C) WT KOLF, Alsin-/- iPSC, & neuroprogenitor cells (NPC) were immunostained with pluripotency markers Oct4 & Lin28, & neuroprogenitor markers Sox2 & Pax6, respectively. (D–E) WT KOLF & Alsin-/- iPSC-sMN were immunostained with motor neuron markers such as ChAT, HB9, & ISL1, nuclear dye DAPI, & cytoskeletal marker MAP2. (F) WT KOLF & Alsin-/- iPSC-sMN were immunostained with antibodies against Rab5 & Alsin, along with DAPI (nuclear) & phalloidin (actin) stains. Scale bars, 10 μm. Image collected & cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/29469808), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] -

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] - PEA decreases astrocyte activation in organotypic cultures of rat hippocampi & rescues neuronal CA3 damage caused by A beta challenge. A beta-challenged (1 μg/ml) slices of rat hippocampi treated for 24 hours w/ PEA (0.1 μM) in presence of selective PPAR gamma antagonist (GW9662, 9 nM) or selective PPAR alpha antagonist (MK886, 3 μM). (A) Nissl staining showing effect of treatment on morphology of organotypic hippocampal slices. Scale bar: 80 μm. A beta caused a marked neuronal loss, mainly in CA3 region of hippocampus, as highlighted by arrows. PEA able to reverse this effect. (B) Representative photomicrographs of CA3 region showing Results of immunofluorescence experiments aimed at investigating effect of treatments on astrocyte activation & neuronal loss, as determined by immunostaining for GFAP (green) & MAP2 (red) alone or merged, respectively. Nuclei stained w/ Hoechst (blue). Scale bar: 10 μm. Arrows in photomicrographs indicate astrocyte infiltration events & apoptotic condensation in nuclei of adjacent neurons. (C) Relative quantification of GFAP-positive cell number as a count of astrocyte proliferation. (D) Apoptotic events detected on MAP2-expressing cells as an indication of neuronal death. For (C) & (D), average value determined by counting cells in at least five microscopic fields for each treatment. Results are presented as means ± SEM of four separate experiments. At least four slices from each experimental group observed for each experiment. Statistical analysis performed using parametric one-way analysis of variance, & multiple comparisons performed using Bonferroni test. ***P < 0.001 & *P < 0.05 vs. control; ∘∘P < 0.01 & ∘P < 0.05 vs. A beta-challenge slices. Image collected & cropped by CiteAb from following publication (https://jneuroinflammation.biomedcentral.com/articles/10.1186/1742-2094-9-49), licensed under a CC-BY license. Not internally tested by Novus Biologicals.

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] -

Immunocytochemistry/ Immunofluorescence: MAP2 Antibody [NB300-213] - PEA inhibits astroglial proliferation & reduces neuronal loss in mixed neuroglia co-cultures exposed to A beta. A beta-challenged (1 μg/ml) astrocyte/neuron mixed cultures were treated with PEA (0.1 μM) in the presence of the selective PPAR gamma antagonist (GW9662, 9 nM) or the selective PPAR alpha antagonist (MK886, 3 μM). After 24 hours of treatment, cells were processed for analyses. (A) Immunofluorescence photomicrographs showing the effect of the treatments on astrocyte proliferation & neuronal loss, as determined by immunostaining for GFAP (green) & MAP2 (red), respectively. Arrows indicate chromatin condensation in nuclei stained with Hoechst dye (blue) as markers of apoptotic events. Scale bar: 10 μm. (B) Relative quantification of GFAP-positive cell number as a count of astrocyte proliferation. (C) Apoptotic events detected on MAP2-expressing cells as an indication of neuronal death. For (B) & (C), the average value was determined by counting cells in at least nine microscopic fields for each treatment. Results are presented as means ± SEM of three separate experiments. Statistical analysis was performed using parametric one-way analysis of variance, & multiple comparisons were performed using the Bonferroni test. ***P < 0.001 vs. unstimulated cells, ∘∘P < 0.01 & ∘P < 0.05 vs. A beta-stimulated cultures. Image collected & cropped by CiteAb from the following publication (https://jneuroinflammation.biomedcentral.com/articles/10.1186/1742-2094-9-49), licensed under a CC-BY license. Not internally tested by Novus Biologicals.