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4 protocols using rat anti cd45

1

Immunohistochemical Characterization of Cardiac Cells

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Immunohistochemical assessments were carried out on frozen cardiac tissue. Briefly, sections were fixed in 4.2 % paraformaldehyde (BD Biosciences, San Jose CA) for 15 mins, followed by permeabilization and blocking with normal goat serum for 30 minutes at room temperature. Slides were incubated with primary antibodies (Abcam, Cambridge, MA): rabbit anti-CD133 (Catalog # ab19898; used at 1:25), rat anti-CD45 (Catalog # ab30446; used at 1:25), and mouse anti-SSEA-4 (Catalog # ab16287; used at 1:20). The sections were then washed with PBS-Tween, and then incubated with all three secondary antibodies (Abcam, Cambridge, MA) at room temperature for 30 minutes: goat anti-rabbit IgG (Alexa Fluor 488; Catalog # ab150081; used at 1:200), goat anti-rat IgG (Alexa Fluor 647; Catalog # ab150167; used at 1:200), goat anti-mouse IgG (Alexa Fluor 555; Catalog # ab150118; used at 1:200). The sections were finally incubated with 0.1% Sudan Black B (Sigma Aldrich, St. Louis, MO) for 30 minutes. ~20 adjacent areas were imaged at 40x magnification using Nikon Confocal Microscope A1 (Nikon, Tokyo, Japan) in the University of Kentucky Confocal Microscopy facility. Cell numbers were expressed as cells/high power field (HPF). Cell numbers are expressed as cells/HPF.
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2

Fluorescent Imaging of Murine Small Intestine

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Small intestinal mesenteries pinned on Sylgard-coated dishes (Dow Corning, Midland, MI) were fixed in 10% formalin for 2 h, washed with Dulbecco's phosphate-buffered saline (DPBS), permeabilized for 2 h with 0.3% Triton X- 100/PBS, and subsequently blocked with 1% bovine serum albumin (BSA) for 2 h. Tissues were then incubated with primary antibody overnight at 4 °C in 0.3% Triton X-100/PBS, followed by secondary antibody for 5 h, and lastly thorough washes with 0.3% Triton X-100/PBS. Primary antibodies were as follows: mouse anti-iNOS (BD Biosciences, San Diego, CA), rabbit anti-n-tyrosine (Bioss, Woburn, MA), hamster anti-podoplanin (Abcam, Cambridge, UK), goat LYVE-1 (R&D, Minneapolis, MN), rat anti-CD45 (Abcam). Tissues were dehydrated in increasing concentrations of ethanol (50, 70, 90, and 100%) for 5 min each, then optically cleared using methyl salicylate for 5–10 min until transparent. Mesenteries were spread onto cover slides and mounted with methyl salicylate. Whole mounts were imaged using an inverted fluorescent microscope (Leica Microsystems, Germany). Each experiment was repeated on 4–5 mice.
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Characterization of Inflammatory Cells in Diabetic Prostate

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The number and type of inflammatory cells were characterized in the prostate of Akita and WT mice. Three random areas from each prostatic lobe from each animal were acquired (WT: n = 4; diabetic: n = 4). Neutrophils were identified and quantitated in H&E stained sections. Immunohistochemistry was used to quantitate monocytes/macrophages, T lymphocytes, B lymphocytes, and fibrocytes. Briefly, sections were blocked for 4 hours in PBS containing 10% donkey serum and 1% BSA (both from Sigma-Aldrich, St. Louis, Missouri) was followed by primary antibodies-rat anti-F4/80 (1 : 50, eBioscience, San Diego, CA), rabbit anti-CD3 (1 : 100, Dako, Carpinteria, CA) and goat anti-CD20 (1 : 100, Santa Cruz, Santa Cruz, CA), and rat anti-CD45 (1 : 100, Abcam, Cambridge, MA) and rabbit anti-vimentin (1 : 100, Abcam, Cambridge, MA) overnight at 4 degrees. Secondary antibodies-donkey anti-rat Alexa 594, donkey anti-rabbit Alexa 594, donkey anti-rat Alexa 488, and donkey anti-goat Alexa 488 (1 : 100, Invitrogen, Grand Island, NY) were incubated for one hour at room temperature. Four μg/mL of Hoechst 33258 (Sigma-Aldrich, St. Louis, Missouri) was incubated for 10 minutes. For quantification of each cell type, three random areas from each prostatic lobe from each animal were acquired using Nikon eclipse Ti-U microscope.
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Immunohistochemical Analysis of Chronic Pain

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On 14 and 28 days after induction of EAP based on pelvic tactile allodynia response, mice were anesthetized with 2.5% isoflurane (Isothesia; Butler) and transcardially perfused with cold PBS followed by ice-cold 4% paraformaldehyde. DRGs, spinal cords of cervical, lumbar and sacral segments and prostates were removed and post-fixed overnight in 4% paraformaldehyde. Then the tissues were transferred to 30% sucrose solution overnight. Tissues were mounted with ornithine carbamyl transferase embedding medium (Tissue Tek) on dry ice and stored at −80°C for further experiments. The antibodies used in this study were as follows: rabbit anti-TMEM199 (1:1,000, Abcam), goat anti-IBA1 (1:1,000, Novus), rat anti-CD45 (1:500, Abcam), guinea pig anti-NeuN (1:1,000, Synaptic Systems), rabbit anti-PGP9.5 (1:500, Abcam), mouse anti-CCL2 (1:200, Proteintech) and chicken anti-GFAP (1:1,000, Novus). The multiple immunolabelings were visualized respectively by using Cytm2- or Cytm3-conjugated-donkey anti-rabbit IgG, Cytm3-conjugated-donkey anti-mouse IgG, Cytm3 or 5-conjugated-donkey anti-goat IgG, Cytm3-conjugated-donkey anti-rat IgG, Cytm5-conjugated-donkey anti-Guinea Pig IgG, Brilliant Violet 421-conjugated Donkey Anti-Chicken IgG (1:1,000, Jackson ImmunoResearch). Diamond Antifade mounting medium (Invitrogen) with or without DAPI (dependent on wavelength assignment in multicolor labeling).
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