MultiVysion® PB: Reagents Required

MultiVysion® PB: Reagents Required

Short version protocol should not replace the package insert.


Probes are premixed in hybridization buffer.  3 µL are used per target area. 


Note: The maximum recommended hybridization time is 8 hours, however 4 hours is optimal. Longer hybridization times may result in high nuclear staining which may obliterate the probe signals.


General Purpose Reagents Required but not Provided. 



See specimen preparation section for a protocol for preparing human blastomere cells for FISH.

Viewing the Results

Appropriate viewing and analysis of the MultiVysion® hybridization is highly dependent upon utilization of proper filter sets and a well-aligned fluorescence microscope. Some of the filter sets necessary for viewing or imaging the MultiVysion PB results may not be available in your laboratory. Contact Vysis Technical Service Department for more information on filter set specifications. All filter sets are available through Vysis, Inc. 


The following minimum filter sets are recommended for viewing MultiVysion PB results:


1) Blue/Aqua dual bandpass set


2) Green/red dual bandpass set


3) Yellow single bandpass set


4) Aqua v2 single bandpass set (optional for clarification of signals observed on the blue/aqua dual bandpass set when experiencing difficulty distinguishing blue and aqua probe signals)


View the results of the hybridization in the following manner:

  1. Find the target cell under phase contrast, low magnification (100X) using the coordinates previously recorded.
  2. Once the cell is located without moving the stage of the microscope switch to fluorescent light using the aqua single bandpass filter setand re-locate the cell with low magnification (100X). Once the cell is relocated with fluorescence, switch to high power magnification (1000X) to analyze. Follow viewing sequence A or B according to the filter sets that will be used for the analysis. 

A. If the aqua/blue dual bandpass filter set is used for analysis of the SpectrumAquaTM  and SpectrumBlueTM  labeled probes then locate and analyze as follows: 

    • Locate the cell using the aqua/blue dual bandpass filter set.
    • Analyze each of the other probes using the following sequence of filters:

1) aqua/blue dual bandpass


2) green/red dual bandpass


3) yellow single bandpass


Note: It is recommended that the specimen is viewed or imaged in this sequence to minimize the extent of photobleaching. By following this sequence the more sensitive fluorophores are exposed to light first.


B. If single bandpass filter sets are used for analysis then locate and analyze as follows:

    • Locate the cell using the aqua/blue single bandpass filter set.
    • Analyze each of the other probes using the following sequence of filters:

1) blue single bandpass


2) red single bandpass


3) yellow single bandpass.


4)  green single bandpass 


5) aqua single bandpass


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