Page 163 - Live-cellanalysis handbook
P. 163

IncuCyte® Live-cell Immunocytochemistry


           Quick Guide
            1. Seed               2. Label test         3. Add Incucyte®     4. Add labeled AB    5. Live-cell
               cells                antibody              opti-green                                 fluorescent imaging














             Cell seeding         Labeling of test      IncuCyte® Opti-      IncuCyte® FabFluor-488-  Automated imaging and
             Seed cells (50 μl/well,   antibody with IncuCyte®   Green background   labeled antibody addition  quantitative analysis
             5-30K/well) into 96-well   FabFluor-488 reagent  suppressor addition  Add antibody-FabFluor   Capture images, (time
             plate.               Mix antibody and      Add 50 μl/well, (3x   mix (50 μl/well) to cell   span and objective
             NOTE: for non-adherent   FabFluor-488 reagent at a   final concentration).  plate. Non-adherent cells   depends on assay and
             cell types, PLO coat plate   molar ratio of 1:3 in media,       – spin plate          cells type, 10x or 20x)
                                                                                                          ®
             prior to cell seeding.  3x final concentration.                                       in IncuCyte  S3 Live-Cell
                                  Incubate for 15 minutes to                                       Analysis System.
                                  allow conjugation.

                     ®
           IncuCyte  Live-cell Immunocytochemistry Assay Methodology
           1a. Seed target cells of interest - Adherent cell      1b. Non-adherent cells
               1.1. Harvest cells of interest and determine cell      NOTE: For this assay, non-adherent cells will be the last
                  concentration (e.g. trypan blue + hemocytometer).   addition to the plate (prepare suspension during the
               1.2. Prepare cell seeding stock in target cell growth media   antibody conjugation step).
                  to achieve 40-50% confluence after 2-6 h. Suggested   1.1.Coat a 96-well flat bottom plate with relevant coating
                  starting range 5,000-20,000 cells/well (depends on cell      matrix. We recommend coating with 50 μL of either
                  type used).                                            0.01% poly-L-ornithine solution (Sigma P4957) or 5 μg/
               NOTE: Seeding density must be optimized for each          mL fibronectin (Sigma P4957) diluted in 0.1% BSA. Coat
               cell type.                                                  for 1 hour at ambient temperature, remove solution from
               1.3. Using a multi-channel pipette, seed cells (50 μL per well)        wells, and then allow plates to dry for 30-60 minutes
                  into a 96-well flat bottom microplate. Lightly tap plate   prior to cell addition.
                  side to ensure even liquid distribution in well.    NOTE: Some optimization of plate coatings may be required.
               1.4. Remove bubbles from all wells by gently squeezing a   1.2.Count cells of interest and determine cell concentration
                  wash bottle (containing 70-100% ethanol with the inner      (e.g. trypan blue + hemocytometer).
                  straw removed) to blow vapor over the surface of each
                  well.                                               1.3. Prepare cell seeding stock in target cell growth media,
                                                                         suggest starting range of 20,000 – 40,000 cells/well in
               1.5. Allow cells to settle on a level surface for 30 minutes at   50 μL (depends on cell type used).
                  room temperature, then place in IncuCyte® S3 Live-Cell   1.4. Using a multi-channel pipette, seed cells (50 μL per well)
                  Analysis System to monitor cell confluence.            into a 96-well flat bottom microplate.
               NOTE: Depending on cell type, plates can be used in assay   1.5. Remove bubbles from all wells by gently squeezing a
               once cells have adhered to plastic and achieved normal cell
               morphology e.g. 2-3 hr for HT1080. Some cell types may    wash bottle (containing 70-100% ethanol with the inner
                                                                         straw removed) to blow vapor over the surface of each
               require overnight incubation.
                                                                         well.
                                                                      1.6. Allow cells to settle on a level surface for 30 minutes at
                                                                         room temperature then place in IncuCyte® S3 Live-Cell
                                                                         Analysis System to monitor cell confluence.
                                                                      NOTE: To reduce settling time cell plates can be centrifuged
                                                                      for 1 minute at 50 g.







                                                                                                                   161
   158   159   160   161   162   163   164   165   166   167   168