BD Horizon™ Brilliant Stain Buffer

Protocols for Multicolor Immunofluorescent Staining of Cells Using BD Horizon Brilliant Stain Buffer

Multicolor Staining of Human Cell Samples in Tubes or 96-Well Plates Using Individual Staining Reagents

1. Add 50 μL of BD Horizon Brilliant Stain Buffer to all tubes or desired wells for the experiment

Note: The 50 μL amount of Brilliant Stain Buffer per tube or per well does not depend on the final staining volume or amount of cells used per tube or number of BD fluorescent antibodies used in staining.  Although written for use with human cells, these protocols can readily be adapted for analyzing mouse cells or cells from other species, for example, by staining mouse cells at 4°C rather than at room temperature (RT).

2. Add each fluorescent reagent at the recommended volume per test (eg, 5 μL or 20 μL) and then proceed to either Protocol 1, 2, or 3.

Protocol 1 for Staining Whole Blood Samples in Tubes

a. Add 100 μL of human whole blood to each tube

b. Vortex tube contents

c. Incubate (30 min) the suspended cells protected from light at room temperature (RT)

d. Add 2 mL of BD FACS™ Lysing Solution (Cat. No. 349202; 10 min) or BD Pharm Lyse™ Lysing Buffer (Cat. No. 555899; 15 min) per tube and incubate protected from light at RT

e. Pellet cells by centrifugation (5 min) at 1400-1500 rpm

f. Aspirate supernatant; add 2-3 mL of stain/wash buffer, eg, BD Pharmingen™ Stain Buffer (FBS) (Cat. No. 554656)

   or BD Pharmingen™ Stain Buffer (BSA) (Cat. No. 554657)

g. Pellet cells by centrifugation (5 min) at 1400-1500 rpm

h. Aspirate the supernatant and resuspend cells in 500 μL of stain/wash buffer for flow cytometric analysis

Protocol 2 for Staining Peripheral Blood Mononuclear Cells or Bulk Erythrocyte-lysed Whole Blood Samples in Tubes

a. Add 100 μL of human cells to each tube

b. Vortex tube contents

c. Incubate (30 min) the suspended cells protected from light at room temperature (RT)

d. Add 2 ml of stain/wash buffer per tube

e. Pellet cells by centrifugation (5 min) at 1400-1500 rpm

f. Aspirate supernatant; add 2-3 mL of stain/wash buffer

g. Pellet cells by centrifugation (5 min) at 1400-1500 rpm

h. Aspirate the supernatant and resuspend cells in 500 μL of stain/wash buffer for flow cytometric analysis

 Protocol 3 for Staining Peripheral Blood Mononuclear Cells or Bulk Erythrocyte-lysed Whole Blood Samples in 96-well Plates

Note:   When planning for staining in plates, the user must account for the volume of the BD Horizon Brilliant Stain Buffer used.  Although written for use with human cells, this 96-well plate-based protocol can readily be adapted for analyzing mouse cells or cells from other species.

a. Add 50 μL of human cells to each well

b. Incubate (30 min) protected from light at RT

c. Wash by adding 100 μL of stain/wash buffer

d. Pellet cells by centrifugation (5 min) at 1400-1500 rpm

e. Aspirate supernatants

f. Resuspend pelleted cells by adding 250 μL of stain/wash buffer

g. Pellet cells by centrifugation (5 min) at 1400-1500 rpm

h. Aspirate supernatants

i. Resuspend pelleted cells thoroughly with 150 μL stain/wash buffer by pipetting the suspended cells several times

j. Transfer well contents to tubes and add additional stain/wash buffer to the tubes as desired for flow cytometric analysis

Note: Alternatively, acquire samples for flow cytometric analysis from the plate directly

Multicolor Staining of Human Cell Samples in Tubes or 96-Well Plates Using Cocktailed Staining Reagents

Instead of adding staining reagents individually to each tube or well of a 96-well plate, it may be desirable to add cocktailed staining reagents, ie, mixtures of two or more fluorescent staining reagents. The following protocol provides an example of how to prepare a "per test" 5-Color Fluorescent Antibody Cocktail that already contains BD Horizon Brilliant Stain Buffer.

Human Samples:  Pre-mixed Fluorescent Reagent Cocktails

For each multicolor test of cocktailed fluorescent reagents:

  i)  Add 50 μL of BD Horizon Brilliant Stain Buffer per test

ii)  Add each fluorescent reagent at the recommended volume per test (5 μL or 20 μL)

iii)  Mix reagents (especially after adding BD Horizon Brilliant reagents)

iv)  Store cocktail at 4°C protected from light if it is to be used later

Note: Protected from light, fluorescent reagent cocktails containing more than one Brilliant Violet and/or Brilliant Blue reagent are best used within 24 hours after preparation when stored at 4ºC or within 4 hours when stored at room temperature. However, when more than one Brilliant Ultraviolet (BUV) reagent is in the cocktail, it is best used within 2 hours after preparation irrespective of storage temperature.

       Example of creating a 5-Color Fluorescent Antibody Cocktail containing 2 different Brilliant Violet™ Conjugates

       Final Volume per Test = 90 μL

     _____________________________________________________________________________________

                             Total Number of Tests                

        Volume/Test (μL)          1             3            5              10

Brilliant Stain Buffer                     50          50         150         250           500

Reagent 1 (BV)                       5            5           15           25             50

Reagent 2 (BV)                       5            5           15           25             50

Reagent 3                        5            5           15           25             50

Reagent 4                       5            5           15           25             50

Reagent 5                     20           20           60           100           200

Total Volume                     90           90          270           450           900

       _____________________________________________________________________________________

       Add desired volume of Reagent Cocktail (90 μL in this 5-color example) to all tubes or wells using

       the protocols for staining human cells described above.

Compensation and Setup

BD Horizon Brilliant Stain Buffer can be used in single color compensation controls using cells. The buffer is compatible with BD™ Compbeads, however, it has not been tested with compensation beads from other vendors. For the most accurate compensation, compensation controls created with either cells or beads should be exposed to BD Horizon Brilliant Stain Buffer for the same length of time as the corresponding multicolor panel. Additionally, the most accurate compensation will be created when BD Horizon Brilliant Stain Buffer is used in all compensation controls, including Brilliant polymer and non-polymer dyes.

1. Alexa Fluor® is a registered trademark of Life Technologies Corporation.
2. BD Horizon Brilliant Stain Buffer is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,575,303; 8,354,239.
3. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
4. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
5. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).