Journal: Molecular metabolism

Article Title: Dietary sugars, not lipids, drive hypothalamic inflammation.

doi: 10.1016/j.molmet.2017.06.008

Figure Lengend Snippet: Figure 3: RAGE and ALCAM are expressed on non-neuronal cell populations. (A) CML binds to proteins of RAGE (molecular weight z 75 KDa) and ALCAM (molecular weight z 105 KDa); the vehicle does not bind to protein of either receptor, as illustrated by no band detected in binding of ALCAM. (B) RAGE and ALCAM gene expression in mediobasal hypothalami of chow or HCHF mice (n ¼ 6 for chow or for HCHF, P ¼ 0.019 for RAGE, P ¼ 0.006 for ALCAM). (C) RAGE is intensely expressed by microglia (iba1-ir, indicated by white arrowheads). Higher magnifications of the areas framed by dashed lines are presented in D. (E) RAGE is intensely expressed on endothelial cells (laminin-ir, indicated by white arrows). Higher magnifications of the areas framed by dashed lines are presented in F. (G) CML stimulates TNFa, but not PDGF-B, gene expression in cultured primary microglia (n ¼ 6 wells of cells for vehicle, n ¼ 5 for TNFa treatments, P ¼ 0.04 for TNFa). (H & I) CML stimulates microglial reactivity in the mediobasal hypothalamic area, arrowheads point to the areas where the tip of the infusion probes located. (J) Iba1-ir cell number and cell coverage in H & I (n ¼ 4 mice for vehicle, n ¼ 5 for CML). (K) ALCAM is expressed on part of the vasculature (laminin-ir, indicated by white arrows, two pericytes are indicated by white arrowheads); higher magnifications of the areas framed by dashed lines are presented in L. (M) ALCAM is expressed on pericytes (PDGFRb-ir, white arrowheads). Higher magnifications of the areas framed by dashed lines are presented in N. Scale bar: 30 mm in C, E, K and M, 7.5um in D, F, L and N. Data are presented as means s.e.m. *P < 0.05, **P < 0.01. P values for unpaired comparisons were analyzed by two-tailed Student’s t test.

Article Snippet: Briefly, 2 mg recombinant CD166/ALCAM protein (Recombinant Mouse ALCAM/CD166 Fc Chimera; R&D Systems) and RAGE protein (Recombinant Mouse RAGE Fc Chimera R&D Systems) were separated on 10% SDS gels (Bio-rad cat.567-1033) and transferred to PVDF membranes.

Techniques: Molecular Weight, Binding Assay, Gene Expression, Cell Culture, Two Tailed Test

Journal: Molecular metabolism

Article Title: Dietary sugars, not lipids, drive hypothalamic inflammation.

doi: 10.1016/j.molmet.2017.06.008

Figure Lengend Snippet: Figure 4: Deletions of RAGE or ALCAM genes improve metabolic symptoms induced by a HCHF diet and exert diverse impacts on microglia, pericytes, and vasculature in the arcuate nucleus. (A & B) Daily caloric intake (in wk10) and weekly BW gain of chow or HCHF diet-fed WT versus RAGE/ mice (n ¼ 5e8 per group); For weekly BW gain, in all time points, WT and RAGE/ mice have less BW gain on chow diet than on HCHF diet (P < 0.0001); from wk14 to wk16, BW gain on HCHF of RAGE/ mice is significantly less than WT mice. (C & D) Daily caloric intake (in wk10) and weekly BW gain of chow or HCHF diet fed WT mice versus ALCAM/ mice (n ¼ 5e8 per group). For weekly BW gain, from wk2 on, WT and ALCAM/ mice have less BW gain in chow than in HCHF; from wk12, wk14 to wk16, BW-gain on HCHF of ALCAM/ mice is significantly less than WT mice. (E & F) Quantification of the number of iba1-ir microglia and the PDGFRb-ir pericytes in the ARC in chow or HCHF diet fed WT mice versus RAGE/ mice (n ¼ 5e9 per group). (G & H) Quantification of vessel length and vascular density in the ARC from chow or HCHF diet fed WT mice versus RAGE/ mice (n ¼ 5e7 per group). (I & J) Quantification of the number of iba1-ir microglia and the PDGFRb-ir pericytes in the ARC in chow or HCHF diet fed WT mice versus ALCAM/ mice (n ¼ 5e6 per group). (K & L) Quantification of vessel length and vascular density in the ARC from chow or HCHF diet fed WT mice versus ALCAM/ mice (n ¼ 6 per group). Data are presented as means s.e.m. *P < 0.05, **P < 0.01, ***P < 0.001. Asterisks in B and D indicate significance between WT and RAGE/ or ALCAM/ mice on HCHF diet. Two-way ANOVA followed by Bonferroni multiple comparisons for post-hoc analysis was performed to detect significant interaction between genotype and diet on each parameter.

Article Snippet: Briefly, 2 mg recombinant CD166/ALCAM protein (Recombinant Mouse ALCAM/CD166 Fc Chimera; R&D Systems) and RAGE protein (Recombinant Mouse RAGE Fc Chimera R&D Systems) were separated on 10% SDS gels (Bio-rad cat.567-1033) and transferred to PVDF membranes.

Techniques:

Journal: Molecular metabolism

Article Title: Dietary sugars, not lipids, drive hypothalamic inflammation.

doi: 10.1016/j.molmet.2017.06.008

Figure Lengend Snippet: Figure 5: Deletion of RAGE and ALCAM genes improves metabolic symptoms induced by a HCHF diet. (A & B) Daily caloric intake (in wk10) and weekly body weight gain of chow or HCHF diet-fed WT versus RAGE-ALCAM/ mice (n ¼ 6e11 per group); for weekly BW gain, from wk5 on, WT and RAGE-ALCAM/ mice have less BW gain in chow than in HCHF; From wk1 to wk4 and from wk9 to wk16, there are significant effect of genotype on BW gain on HCHF. (C) Body composition of WT versus RAGE-ALCAM/ mice fed HCHF diet (n ¼ 4e8 per group). (D) Glucose tolerance of WT versus RAGE-ALCAM/ mice fed chow or HCHF diet (n ¼ 5e7 per group). (E) Glucose tolerance of RAGE-ALCAM/

Article Snippet: Briefly, 2 mg recombinant CD166/ALCAM protein (Recombinant Mouse ALCAM/CD166 Fc Chimera; R&D Systems) and RAGE protein (Recombinant Mouse RAGE Fc Chimera R&D Systems) were separated on 10% SDS gels (Bio-rad cat.567-1033) and transferred to PVDF membranes.

Techniques:

Journal: Molecular metabolism

Article Title: Dietary sugars, not lipids, drive hypothalamic inflammation.

doi: 10.1016/j.molmet.2017.06.008

Figure Lengend Snippet: Figure 6: Deletion of RAGE and ALCAM genes reduces microglial reactivity and neovasculature formation in the arcuate nucleus (A, B & C) Quantification of iba1-ir microglial number, coverage and the PDGFRb-ir pericytes number in the ARC from chow or HCHF diet fed WT (n ¼ 5e8 per group) versus RAGE-ALCAM/ mice (n ¼ 7e 10 per group). (D & E) Quantification of vessel length and vascular density in the ARC from chow or HCHF diet fed WT (n ¼ 5e7 per group) versus RAGE-ALCAM/ mice (n ¼ 5e 7 per group). (FeH) Illustrations of the iba1-ir microglia, PDGFRb-ir pericytes and FITC-albumin labeled vessels in WT versus RAGE-ALCAM/ mice fed chow or HCHF diet, with a frame of 0.2 mm 0.2 mm for quantifications in the ARC. (I) Illustration of the skeletonization of vessel in H for vascular density analysis. III: third cerebral ventricle. Scale bar: 50um in F and G, 100um in F. Data are presented as means s.e.m. *P < 0.05, **P < 0.01, ***P < 0.001. Two-way ANOVA followed by Bonferroni multiple comparisons for post-hoc analysis was performed to detect significant interaction between genotype and diet on each parameter.

Article Snippet: Briefly, 2 mg recombinant CD166/ALCAM protein (Recombinant Mouse ALCAM/CD166 Fc Chimera; R&D Systems) and RAGE protein (Recombinant Mouse RAGE Fc Chimera R&D Systems) were separated on 10% SDS gels (Bio-rad cat.567-1033) and transferred to PVDF membranes.

Techniques: Labeling

Journal: Biochimica et biophysica acta

Article Title: RAGE overexpression confers a metastatic phenotype to the WM115 human primary melanoma cell line.

doi: 10.1016/j.bbadis.2014.02.013

Figure Lengend Snippet: Fig. 1. Q2 A) Levels of RAGE in RAGE transfected WM115 cells as determined by ELISA. Levels are expressed in pg RAGE protein per mg of total protein. WM115-RAGE and WM115-RAGE-I expressed 94 fold and 7 fold higher RAGE protein than the MOCK control cells, respectively. B) Binding of the anti-RAGE antibody MAB1145 to WM115-RAGE (filled circles) and WM115- MOCK (filled squares) measured by flow cytometry. The binding curve of MAB1145 to WM115-RAGE was fitted using a 1:1 binding model and showed an affinity of 1.5 (±0.3) nM. RAGE overexpressed in the melanoma cells is properly processed and translocated to the cell-surface, as demonstrated by their recognition by specific antibodies. The experiment was performed in triplicate and the standard deviation is indicated. C–F) Morphology of WM115-MOCK (C), WM115-RAGE-I (D), WM115-RAGE (E) and WM266-MOCK (F) by bright field microscopy. G–H) Differences in morphology between WM115-MOCK (G) and WM115-RAGE (H) transfected cells, as shown by actin staining. Actin was stained with PE conjugated phalloidin and the nuclei were stained with Hoechst 33342. (20× magnification).

Article Snippet: RAGE protein levels in the cell extracts were determined using the Quantikine human RAGE Immunoassay kit (R&D Systems) according to the manufacturer's procedure, and expressed in picogram of RAGE per mg of total protein.

Techniques: Transfection, Enzyme-linked Immunosorbent Assay, Control, Binding Assay, Cytometry, Standard Deviation, Microscopy, Staining

Journal: Disease markers

Article Title: Fecal S100A12 in Healthy Infants and Children

doi: 10.1155/2013/873582

Figure Lengend Snippet: Faecal S100A12 concentrations in 56 healthy infants and children. Serial stools collected from the first day of life (meconium) to 6 months of age from 7 healthy infants (Population 1) and single stools collected from 49 children (Population 2) were utilised to measure faecal S100A12 concentrations by immunoassay.

Article Snippet: Dilutions of recombinant S100A12 (Recombinant Human EN-RAGE/S100A12, R&D Systems, Minneapolis, MN, USA) were added (100 μ L/well) in order to create a standard curve.

Techniques:

Journal: Disease markers

Article Title: Fecal S100A12 in Healthy Infants and Children

doi: 10.1155/2013/873582

Figure Lengend Snippet: Measurement of fecal S100A12 infants and children. Repeated fecal samples were collected from seven term infants over the first six months of life (a). Single stool samples were collected from 49 healthy infants and children (b). S100A12 concentrations were measured by immunoassay. Only five samples (all in infants) were above the cut-off of 10 mg/kg.

Article Snippet: Dilutions of recombinant S100A12 (Recombinant Human EN-RAGE/S100A12, R&D Systems, Minneapolis, MN, USA) were added (100 μ L/well) in order to create a standard curve.

Techniques:

Journal: Molecules and Cells

Article Title: Characterization of αX I-Domain Binding to Receptors for Advanced Glycation End Products (RAGE)

doi: 10.14348/molcells.2017.0021

Figure Lengend Snippet: Binding of αX and αM I-domains to RAGE and the V-domain of RAGE. (A) A schematic representation of recombinant RAGE and RAGE derived soluble domains. All soluble proteins are fused with a His-tag for purification and detection. (B) SDS-PAGE analysis of purified sRAGE, sRAGEC1/2 and sRAGEV. (C) SPR sensorgram of sRAGE and RAGE-derived soluble domains binding to immobilized GST-αX-I. RAGE-derived proteins (1 μM) were injected to flow over immobilized GST-αX-I on a CM5 sensor chip (1800 RU). (D) Binding of sRAGEV and sRAGEC1/2 to GST-αX-I on microtiter plates. sRAGEV and sRAGEC1/2 (0.5 μM or 1.0 μM) were loaded on microtiter plates coated with GST-αX-I. Data are means ± S. E. (n = 3). (E, F) Binding of the I-domains to the sRAGE (E) and sRAGEV (F) on microtiter plates. GST and αX and αM I-domains (0.5 μM or 1.0 μM) were loaded on microtiter plates coated with sRAGE and sRAGEV. Data are means ± S. E. (n = 3).

Article Snippet: Recombinant RAGE fused with the human IgG Fc region produced from mammalian cells was purchased from R&D Systems (USA).

Techniques: Binding Assay, Recombinant, Derivative Assay, Purification, SDS Page, Injection