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3 protocols using cd3 percp

1

Phenotypic Analysis of Langerhans Cells

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Immature and mature LCs were phenotyped using CD1a-APC (BD Pharmingen), langerin-PE (Novocastra), CD86-FITC (BD Pharmingen), CD80-PE (BD Pharmingen), CD83-APC (BD Pharmingen), CD4-AF488 (Biolegend), CD195 (CCR5)-PE (BD Pharmingen) and unlabeled CXCR4 (R&D systems) for which secondary detection with Goat-anti-Mouse-A488 (Invitrogen) was used. HIV-1 infection and transmission samples were stained for CD1a-APC (LC marker), CD3-PerCP (T cell marker), and p24-PE (HIV-1 envelope protein, Beckman Coulter). Immature vaginal LCs were further sorted with a FacsARIA 3 laser sorter (BD Biosciences) after staining for CD1a-APC into CD1a positive and CD1a negative fractions. Samples were analysed using FACSCanto II flow cytometers (BD Biosciences) and data analysis was carried out with FlowJo V10.
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2

Multiparametric Flow Cytometry Analysis

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The anti-human mAbs have been used: CD3 PE (from Beckman Coulter), CD3 PErCP, CD11b PE, CD14 APC, CD56 PE, CD56 APC, CD73 PE, CD107a FITC, Granzyme A FITC, Perforin FITC, pJNK PE (from BD Biosciences), HLA-DR FITC (Dako), CD44 FITC, CD105 FITC, Granzyme B PE, Granzyme K Alexa647 (Immunotools), CD90 APC, COX2 FITC (Cayman chemicals). Each flow cytometric analysis was controlled with isotype-matched mAbs. All flow cytometry-based experiments were performed on FACS Calibur using Cell-Quest Pro Software. Offline data analysis was done on Summit 5.1 software.
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3

NK Cell Phenotyping Post-Transplant

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Frozen PBMC and BAL samples were thawed rapidly and the viability determined by trypan blue exclusion. Antibodies used in this study included the following: CD56 Brilliant Violet (BV) 421, CD3 PerCP, KIR3DL1-APC, CD57-FITC (all from Becton Dickinson Biosciences, NJ, USA), NKG2A-PE, NKG2C-AlexaFluor 700 (both from R&D systems), KIR2DL1/2DS1 PECy7, KIR2DL2/2DL3/2DS2 PECy5.5 (all from Beckman Coulter), and KIR3DL2-biotin (courtesy of K.J. Malmberg, Karolinska University Hospital, Stockholm, Sweden) followed by Streptavidin BV 605. There were additional PBMC and BAL samples available for one high-risk recipient at 9 months posttransplant, and further phenotyping was performed by antibodies to CD2-FITC, CD69-PE, HLA-DR PerCP Cy5.5, Ki67 PECy7, CD16 BV 605, and CD103 BV711 (all from Becton Dickinson Biosciences, NJ, USA), ILT2 APC (Beckman Coulter), as well as antibodies to identify NKG2C + NK cells as above (CD3 PerCP, CD56 BV 421, and NKG2C-AlexaFluor 700). All samples also included a viability dye (Live/Dead Fixable Near-IR, Thermofisher). Flow cytometry analysis was performed using a Becton Dickinson LSRFortessa (NJ, USA). Samples were gated on single, live lymphocytes, followed by gating on CD3 -CD56 + and analyzed using FlowJo software (Treestar, San Carlos, USA).
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