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4 protocols using mannose receptor

1

Macrophage Exosome Response

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Total protein was isolated from macrophages were treated with EOC-derived exosomes (100 μg/ml) or miR-222-3p mimics, inhibitors and the miR-negative control for 96 or 48 hours. Antibodies against Mannose Receptor (Abcam, MA, USA), SOCS3 (Abcam, MA, USA), phospho-STAT3 (Tyr705) (Cell Signaling, MA, USA), and STAT3 (Cell Signaling, MA, USA) were used.
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2

Microglial response in intracerebral hemorrhage

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10 µm thick slices were first stained with OX-42 (1:1000, ABcam) and mannose receptor (1:1000, ABcam) overnight at 4 °C, followed by incubation with appropriate fluorescence conjugated secondary antibodies (Jackson Immunoresearch, West Grove, PA). The peri-hemorrhagic area was imaged by a Fluorescent Olympus-BX51 microscope and analyzed using MagnaFire SP 2.1B software (Olympus, Melville, NY). At least six sections per animal group over a microscopic field of 20 × (for microglia) were averaged and expressed as cells/field, as described (Wang and Dore, 2007 (link))
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3

Immunofluorescence Staining of Macrophages

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The CD14+ cells (1 × 106) were cultured on slides for 7 days at 37°C in a humidified atmosphere containing 5% CO2 to obtain MDM, and the cells were washed in PBS and fixed in 2% formaldehyde for 15 min. To avoid unspecific binding, the MDM were blocked for 30 min with 2% porcine serum (Gibco) in PBS (PBS-PS). Posteriorly, the cells were incubated 1 h with primary mAbs to Mannose Receptor (4 μg/mL, Abcam) TCRαβ (4 μg/mL, Thermo Fischer) and CD3 (1:100 cell signaling). The following were used as secondary mAbs (diluted in PBS-PS): donkey anti-rabbit IgG Alexa Fluor-488 (1:100) and donkey anti-rat IgG Alexa Fluor-647 (1:100) provided by Jackson ImmunoReseach and Goat anti-Mouse IgG Alexa Fluor-546 provided by Invitrogen, cells were incubated 1 h. Finally, the samples were washed and incubated with 4_,6-diamidino-2 phenylindole dihydrochloride (DAPI; NucBlue Fixed Cell Stain, Molecular Probes) for 10 min for nuclei labeling and mounting with ProLong Gold Antifade Mountant (Invitrogen). The slides were examined by confocal microscopy FV-1,000 Olympus, and FIJI software was used for the analysis.
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4

Histopathological Analysis of Skin Tissue

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Removed skin tissues including incisions were immediately placed in 10% formalin solution. The fixed tissues were dehydrated using a series of ethanol solutions, and the dehydrated tissues were then embedded in paraffin for block preparation. A constant thickness of slide was sectioned (3 µm). As a control, the same thickness of paraffin slide using normal skin tissue was made. The tissue sections were treated with H&E and MT staining (Abcam: ab150686, Cambridge, UK). For immunostaining, deparaffinized tissue sections were treated using a microwave antigen-retrieval procedure with 0.01 M sodium citrate buffer. After blocking, the sections incubated with antibodies against iNOS (N-20, Santa Cruz Biochemical, Dallas, TX, USA) and mannose receptor (Abcam). For visualization, an HRP/DAB detection IHC kit (Abcam) was used according to the manufacturer’s instructions. These sections were observed using a slide scanner (Pannoramic MIDI; 3DHISTECH Ltd., Budapest, Hungary) and a panoramic viewer (Version 1.15.3; Pannoramic MIDI; 3DHISTECH Ltd., Budapest, Hungary) program.
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