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10 protocols using anti mouse igg fitc

1

Immunohistochemistry of Sciatic Nerve

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Animals were sacrificed after the behavioral test for immunohistochemistry. The sciatic nerve was collected according to a previously described method [20 (link)]. The sciatic nerves were dissected and immediately immersed in a solution consisting of 4% paraformaldehyde in 100 mM PBS overnight. For cryoprotection, fixed tissue was immersed in a solution consisting of 30% sucrose in PBS. Longitudinal sections 20 μm thick were cut using a cryostat (Leica, Nussloch, Germany). The tissue slides were incubated overnight at 4°C with primary antibody to neurofilament protein (NF-200; Sigma). After washing, the slides were incubated with secondary FITC anti-mouse IgG (Jackson ImmunoResearch Laboratories, West Grove, PA, USA) at room temperature. Tissues were mounted, and images were acquired using a Nikon Eclipse 50i (Nikon Inc., Melville, NY, USA) fluorescence microscope (100× to 400×). Analyses of individual sections used in the final quantification were performed using Image-Pro Plus software (Media Cybernetics Inc., Silver Spring, MD, USA).
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2

Histological Evaluation of Kidney, Lung, and Skin

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Kidneys, lungs and skin biopsies were fixed in 10% formaldehyde. Tissue sections were stained with H&E or Periodic acid-Schiff (PAS) and visualized by Nikon. Histological scores of skins and kidneys were evaluated as described(34 (link), 35 (link)). Kidneys and skins were scored from 6 mice in each group. At least 20 glomeruli and 10 tubular and vessel area in low power field are scored and calculated an average in each tissue section. Briefly, severity of glomeluronephritis, interstitial nephritis and perivascular infiltrates were graded in a semiquantitative (0–3+) manner. For skin, the degree of acanthosis, none (0) to marked thickened dermis (27); hyperkeratosis, none (0) to markedly increased keratin (2); inflammation, sparse (0) to heavy lymphocytic infiltrates (27); fibrosis, dermal collagen with normal (0) to markedly thickened (2); vessels, normal (0) to diffuse dilated (2); ulcer, absence (0) ore presence (1). For immunofluorescence, frozen kidney sections (5 μm thickness) were fixed in acetone and blocked with 1% normal goat serum in PBS. Diluted FITC-anti-mouse IgG (Jackson Immunoresearch) and FITC-anti-mouse C3(36 (link)) antibodies were incubated overnight at 4 °C, and staining visualized with a Nikon C1 confocal microscope.
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3

Immunofluorescence Antibody Protocol

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The following antibodies were used at the indicated concentration and obtained from the indicated sources: rabbit anti-MVH (1 : 500, Abcam, ab13840); rabbit anti-RHAU (1 : 100, Protein Technologies, Inc., Tucson, AZ, USA, 13159-1-AP); rabbit anti-RHAU (1 : 200, Abcam, Shanghai, China, ab70269); rabbit anti-phosphor-histone-H2A.X (1 : 200, CST, Danvers, MA, USA, #9718); rabbit anti-Sycp3 (1 : 200, Abcam, ab15093); mouse anti-MLH1 (1 : 50, BD Pharmingen, Shanghai, China, 551092); mouse anti-PLZF (1 : 200, Santa Cruz Biotechnology, Inc., Dallas, TX, USA, sc-28319); rabbit anti-Lin28 (1 : 500, Santa Cruz Biotechnology, Inc., sc-67266); rabbit anti-c-kit (1 : 300, CST, #3074); mouse anti-β-actin (1 : 10000, Santa Cruz, Biotechnology, Inc., sc-81178); mouse anti-BrdU (1 : 100, EMD Millipore, Billerica, MA, USA, 05–633); goat anti-rabbit IgG (H+L)-HRP (1 : 5000, Bioworld, St. Louis Park, MN, USA, BS10350); goat anti-mouse IgG-HRP (1 : 5000, Abmart, Shanghai, China, #M21002); Cy3-anti-mouse IgG (1 : 200, Jackson Immunoresearch, West Grove, PA, USA, 115-165-146); FITC-anti-rabbit IgG (1 : 200, Jackson Immunoresearch, 111-095-144); Cy3-anti-rabbit IgG (1 : 200, Jackson Immunoresearch, 111-165-003); and FITC-anti-mouse IgG (1 : 200, Jackson Immunoresearch, 115-095-146).
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4

RBC Antibody Binding Assay

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Serum RBC ab levels were detected as previously described (30 (link)). Freshly isolated RBCs were washed three times in PBS, and resuspended to 1% RBCs. 10 μl of 1% RBCs were incubated with anti-mouse IgM-FITC (1:150; on ice) or anti-mouse IgG-FITC (1:50; at 37 °C; Jackson ImmunoResearch). The %RBCs bound by ab was determined by flow cytometry.
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5

Characterization of Prostate Cancer Cells

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Prostate tumor cell lines were cultured as described previously [14 (link)]. The F77 antibody was purified in our laboratory [13 (link)]. All cell lines were routinely checked for mycoplasma. PC3 cell lines were confirmed virus free by the IMPACT II test (IDEXX Bioresearch). Anti-CD44 (IM-7), biotinylated anti-CD44 (IM-7) and anti-mouse IgG were purchased from Biolegend. anti-mouse IgG FITC was purchased from Jackson ImmunoResearch. Anti-rat AF594 was purchased from Invitrogen.
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6

Immunofluorescence analysis of iPSC-derived retinal organoids

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iPSC-derived retinal organoids were fixed in 4% paraformaldehyde at room temperature for 20 min. Post-fixation retinal organoids were incubated overnight with 30% sucrose in PBS, and then frozen and cryosectioned. The frozen sections were stained for a panel of retinal-specific antibodies. Antibodies against the following proteins were used at the indicated dilutions: RECOVERIN (Merck Millipore, AB5585, 1:800), NRL (Santa Cruz, sc-374277, 1:800), CRALBP (Abcam, ab15051, 1:500), HuC/D (ThermoFisher, A21271, 1:500), PKCα (BD Biosciences, 610107, 1:500), ARL13B (Proteintech, 17711-1-AP, 1:500), PRPF31 (Abnova, PAB7154, 1:500), SNRPB monoclonal antibody (Y12) (ThermoFisher, MA5-13449, 1:500). The following secondary antibodies were used: anti-mouse-IgG-FITC (Jackson Immuno Research, 715-095-151, 1:500), anti-mouse-IgG-Cy3 (Jackson Immuno Research/115-165-003, 1:500), anti-rabbit-IgG-Cy3 (Jackson Immuno Research/111-165-003, 1:500), anti-goat-IgG-FITC (Jackson Immuno Research/705-096-147, 1:500). Nuclei were labelled with blue-DAPI (ThermoFisher, 62248). All antibody details are shown in Supplementary Data 6.
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7

Quantifying Anti-Mouse RBC Antibodies

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Abs bound to RBCs were detected using flow cytometry as previously described18 (link). RBCs were freshly isolated from mice by terminal bleed or submandibular vein puncture, washed three times in room-temperature PBS, and resuspended to 1% RBCs. 10 μl of 1% RBCs were incubated with either anti-mouse IgM-FITC (1:100 dilution; on ice; Jackson ImmunoResearch) or anti-mouse IgG-FITC (1:50 dilution; at 37 °C; Jackson ImmunoResearch) for 20–30 min. The percentage of RBCs bound by Ab was determined by flow cytometry.
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8

Anti-MUC1 TRA mAb H23 as Positive Control

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The anti-MUC1 TRA mAb H23, raised against the human breast cancer cell line T47D, [35] (link) recognizing the non-glycosylated MUC1 epitope APDTRP, served as a positive control. Mouse anti-goat or rabbit anti-mouse IgG-FITC (Jackson ImmunoResearch, USA) served as a negative control for FACS analyses. Normal mouse or rabbit IgG antibodies (Chemicon, Millipore, USA) were used for complement-dependent cytotoxicity (CDC) analyses.
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9

BrdU Incorporation Assay in Drosophila

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ptc-GAL4 or en-GAL4 females were crossed with UAS-RBF and UAS-RBFD253A males, and with w1118 males for the control. Larvae were fed for 2 h on medium supplemented with 1 mg/ml BrdU. They were then dissected in 1X PBS pH 7.6, and fixed in PBT/formaldehyde (PBS 1X/5% formaldehyde/0.3% Triton X-100) for 20 min at room temperature, washed three times for 31min in PBT, denatured in 2.2 N HCl/0.1% Triton X-100 by two 15 minute-long incubations, neutralized with 100 mM sodium tetraborate (Borax) by two 5 minute-long incubations. For immunohistochemistry, larvae were blocked by incubation in PBT/10% fetal calf serum (FCS) for 45 min, incubated with mouse anti-BrdU monoclonal antibody (1: 200, DSHB) overnight at 4°C and washed thrice in PBT/FCS. Discs were then incubated with anti-mouse IgG-FITC (1: 200, Jackson Immuno Research) and washed thrice in PBT. Discs were mounted in Citifluor™ and observed with a Leica SP2 upright confocal microscope.
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10

Measurement of Anti-Donor Antibodies

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Serum was obtained from mice and diluted 1:100 in PBS. The serum was incubated with enriched allogeneic T cells (target cells; 2 × 105 cells/well) in 96-well plates. After incubating for 1 h at 4µC, the cells were washed twice with PBS, re-suspended, and cultured with anti-mouse IgG FITC (Jackson Immuno Research West Grove, PA, USA) on ice for 30 min. The cells were washed twice and re-suspended in PBS, and then data were acquired on a flow cytometer. The degree of fluorescence was reported as median fluorescence intensity (MFI) as a measure of anti-donor antibody attachment to target cells.
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