goat anti galectin3  (R&D Systems)

Journal: Acta Neuropathologica

Article Title: Galectin-3, a novel endogenous TREM2 ligand, detrimentally regulates inflammatory response in Alzheimer’s disease

doi: 10.1007/s00401-019-02013-z

Figure Lengend Snippet: Galectin-3 is increased in human and mouse AD brains and marks a microglial phenotype associated with Aβ plaques. a Western blot analyses of cortex from human AD cases ( n = 6) and age-matched healthy controls ( n = 5). b Galectin-3 (gal3) staining mainly coincided with Iba1 + microglia found around Aβ plaques in human AD brains. c Immunohistochemistry showed high levels of gal3 in microglia in AD brains, as compared to Iba1-staining (low levels of gal3 was detected in association to blood vessels). d Gal3 protein was significantly upregulated in the cortex of 5xFAD mice in a time-dependent fashion (WT, 6 months old). e Gal3 expression was found in Iba1 + cells around Αβ plaques. Statistical significance was calculated by one-way ANOVA with Tukey’s correction ( d ) or Student’s t test ( a ). *p < 0.05; **p < 0.01. Data are shown as mean ± SD. The human AD cases are described in suppl. Tables S1 and S2 (online resources 8 and 9)

Article Snippet: For single immunolabeling, sections were immunoreacted with one of the following primary antibodies: anti-Aβ42 rabbit polyclonal (1:5000 dilution, Abcam), anti-amyloid precursor protein (APP) rabbit polyclonal (1:20,000 dilution, Sigma), anti-CD45 rat monoclonal (clone IBL-3/16, 1:500 dilution, AbD Serotec), anti-galectin3 (gal3) goat polyclonal (1:3000 dilution, R&D) over 24 or 48 h at room temperature.

Techniques: Western Blot, Staining, Immunohistochemistry, Expressing

Journal: Acta Neuropathologica

Article Title: Galectin-3, a novel endogenous TREM2 ligand, detrimentally regulates inflammatory response in Alzheimer’s disease

doi: 10.1007/s00401-019-02013-z

Figure Lengend Snippet: Galectin-3 deficiency/inhibition reduces the microglial inflammatory response in vitro. a Reduced cytokine levels in culture medium from Gal3KO primary microglial cultures compared to WT after fΑβ treatment for 12 h. b WT primary microglial cultures increase the release of gal3 upon stimulation with fAβ. In vitro experiments represent a minimum of three independent experiments. Statistical significance was calculated by Student’s t-test ( b ), or one-way ANOVA with Tukey’s correction ( a ) *p < 0.05; **p < 0.01; ***p < 0.001. Data are shown as mean ± SD

Article Snippet: For single immunolabeling, sections were immunoreacted with one of the following primary antibodies: anti-Aβ42 rabbit polyclonal (1:5000 dilution, Abcam), anti-amyloid precursor protein (APP) rabbit polyclonal (1:20,000 dilution, Sigma), anti-CD45 rat monoclonal (clone IBL-3/16, 1:500 dilution, AbD Serotec), anti-galectin3 (gal3) goat polyclonal (1:3000 dilution, R&D) over 24 or 48 h at room temperature.

Techniques: Inhibition, In Vitro

Journal: Acta Neuropathologica

Article Title: Galectin-3, a novel endogenous TREM2 ligand, detrimentally regulates inflammatory response in Alzheimer’s disease

doi: 10.1007/s00401-019-02013-z

Figure Lengend Snippet: Galectin-3 colocalizes with TREM2. a , b Iba1 + cells expressing galectin-3 (gal3) around Aβ plaque in 5xFAD mice. c Reduced number of Iba1 + microglial cells around Αβ plaques in 5xFAD/Gal3KO mice compared to 5xFAD mice (% of Αβ area). d Number of Iba1 + cells expressing gal3 in 5xFAD (% of Αβ area). e , f Gal3 and TREM2 in plaque-associated microglia in the brain of 5xFAD mice reveals colocalization of gal3 and TREM2. g Gal3 and TREM2 colocalization in 5xFAD mouse brain using STORM microscopy. Statistical significance was calculated by Student’s t test. *p < 0.05. Data are shown as mean ± SEM. All images were taken in 5xFAD mice at 18 months

Article Snippet: For single immunolabeling, sections were immunoreacted with one of the following primary antibodies: anti-Aβ42 rabbit polyclonal (1:5000 dilution, Abcam), anti-amyloid precursor protein (APP) rabbit polyclonal (1:20,000 dilution, Sigma), anti-CD45 rat monoclonal (clone IBL-3/16, 1:500 dilution, AbD Serotec), anti-galectin3 (gal3) goat polyclonal (1:3000 dilution, R&D) over 24 or 48 h at room temperature.

Techniques: Expressing, Microscopy

Journal: Acta Neuropathologica

Article Title: Galectin-3, a novel endogenous TREM2 ligand, detrimentally regulates inflammatory response in Alzheimer’s disease

doi: 10.1007/s00401-019-02013-z

Figure Lengend Snippet: Galectin-3 interacts with TREM2 through its carbohydrate-binding domain. a Fluorescent anisotropy assay for galectin-3 (gal3)/TREM2 interaction. Data are presented as % of TREM2–gal3 binding (gal3, WT and mutant gal3 with deficient carbohydrate-binding domain, R186S) and fluorescent probe interaction, by increasing concentrations of TREM2, together with the calculated K d values for the gal3/TREM2 interaction ( n = 2). b Control and DAP12 reporter cell lines were stimulated with increasing concentrations of gal3 (250 nM–2.5 µM), ionomycin and phosphatidylserine (PS). Statistical significance was calculated by Student’s t test or one-way ANOVA with Bonferroni’s post hoc test. *p < 0.05; **p < 0.01. Data are shown as mean ± SD

Article Snippet: For single immunolabeling, sections were immunoreacted with one of the following primary antibodies: anti-Aβ42 rabbit polyclonal (1:5000 dilution, Abcam), anti-amyloid precursor protein (APP) rabbit polyclonal (1:20,000 dilution, Sigma), anti-CD45 rat monoclonal (clone IBL-3/16, 1:500 dilution, AbD Serotec), anti-galectin3 (gal3) goat polyclonal (1:3000 dilution, R&D) over 24 or 48 h at room temperature.

Techniques: Binding Assay, Mutagenesis, Control

Journal: Acta Neuropathologica

Article Title: Galectin-3, a novel endogenous TREM2 ligand, detrimentally regulates inflammatory response in Alzheimer’s disease

doi: 10.1007/s00401-019-02013-z

Figure Lengend Snippet: Galectin-3 induces the formation of insoluble Αβ aggregates following injections of Αβ monomers in the hippocampi of WT mice. Αβ monomers were injected with galectin-3 (Gal3) (Aβ + Gal3) or without (Aβ) after 1 h Aβ monomers incubation w/o gal3 into the right or left hippocampi of WT mice, respectively. a Staining for Αβ and gal3 in the left hippocampus (only Aβ monomers injected). b , c Staining for Αβ and gal3 in the right hippocampus (Aβ + gal3 injected). Dashed frames in b are magnified and shown in c . d Thioflavin-S and Αβ staining of the left hippocampus (only Aβ injected). e Thioflavin-S and Αβ staining of the right hippocampus (Aβ + gal3 injected). White arrows point to gal3 and thioflavin-S + aggregates. f , g Iba1 and GFAP immunoreactivity in the right hippocampus (Αβ + gal3 were injected)

Article Snippet: For single immunolabeling, sections were immunoreacted with one of the following primary antibodies: anti-Aβ42 rabbit polyclonal (1:5000 dilution, Abcam), anti-amyloid precursor protein (APP) rabbit polyclonal (1:20,000 dilution, Sigma), anti-CD45 rat monoclonal (clone IBL-3/16, 1:500 dilution, AbD Serotec), anti-galectin3 (gal3) goat polyclonal (1:3000 dilution, R&D) over 24 or 48 h at room temperature.

Techniques: Injection, Incubation, Staining

Journal: bioRxiv

Article Title: ESCRT-mediated lysosome repair precedes lysophagy and promotes cell survival

doi: 10.1101/313866

Figure Lengend Snippet: The ESCRT-III subunit CHMP4B is recruited to LAMP1 or CD63 and Gal3-positive damaged endolysosomal membranes. A) Representative confocal images showing recruitment of ESCRT-III complex at the damaged endolysosmal membranes compared to the control. HeLa cells were treated with 250 μM lysosomotropic drug LLOMe or equal volume of DMSO (Ctrl) for 1h before fixation. Endogenous CHMP4B, GAL3 and LAMP1 were immunostained. B) Representative confocal images of HeLa cells stably expressing CHMP4B-eGFP and mCherry-Galectin3 treated and fixed as in A) and stained with CD63 antibody. Scale bars: 10 μm.

Article Snippet: Goat anti-Galectin3 antibody (cat. no. AF1154) was purchased from R&D Systems, rabbit anti-CHMP2A (cat. no. 10477-1-AP) from Proteintech.

Techniques: Stable Transfection, Expressing, Staining

Journal: bioRxiv

Article Title: ESCRT-mediated lysosome repair precedes lysophagy and promotes cell survival

doi: 10.1101/313866

Figure Lengend Snippet: Dynamics of CHMP4B recruitment to the damaged endolysosomal membranes. Representative movie montage from live cell imaging comparing the timing of CHMP4B-eGFP and mCherry-Galectin3 recruitment. Using the perfusion system, 250 μM LLOMe was added to HeLa cells stably expressing CHMP4B-eGFP and mCherry-Galectin3 at 20 sec while imaging. As shown in the representative movie montage and the quantification graph, CHMP4B recruitment precedes Galectin3, which is an established marker for detection of damaged endolysosomal membranes. Quantification graph (right panel) is normalized to the area occupied by the cells, at least 40 cells.

Article Snippet: Goat anti-Galectin3 antibody (cat. no. AF1154) was purchased from R&D Systems, rabbit anti-CHMP2A (cat. no. 10477-1-AP) from Proteintech.

Techniques: Live Cell Imaging, Stable Transfection, Expressing, Imaging, Marker

Journal: bioRxiv

Article Title: ESCRT-mediated lysosome repair precedes lysophagy and promotes cell survival

doi: 10.1101/313866

Figure Lengend Snippet: ESCRT-III recruitment to damaged lysosomes precedes lysophagy. HeLa cells stably expressing CHMP4B-eGFP and/or mCherry-Galectin3 were incubated with 250 μM LLOMe, fixed at different time points as indicated and stained for different markers. A) CHMP4B is recruited before ubiquitin and Galectin-3 upon lysosomal membrane damage. B) CHMP4B is recruited before p62 and LC3 on the damaged lysosomes. Dynamics of LAMP1-positive foci appears stable independently of LLOMe treatment. Quantification graphs are normalized to the number of foci per cell, at least 100 cells per condition.

Article Snippet: Goat anti-Galectin3 antibody (cat. no. AF1154) was purchased from R&D Systems, rabbit anti-CHMP2A (cat. no. 10477-1-AP) from Proteintech.

Techniques: Stable Transfection, Expressing, Incubation, Staining, Membrane