Diagnostic Cytogenetics Inc. (DCI) can perform fluorescent in situ hybridization (FISH) analysis on cell line specimens for:

• Recurrent stem cell aneuploidies
• FISH probes on our clinical menu
• Any commercially available probe
• Probes created by our clients

DCI can prepare FISH probes if provided with target DNA.  Please inquire for more details.


  • Standard Analysis: For each FISH probe, a minimum of 200 interphase cells are analyzed for abnormal signal patterns. FISH on metaphase cells can also be performed if requested.


    We are happy to adapt our analysis protocol to suit your lab’s individual preferences and budget. Please contact us for more information.


    Images for publication can be provided in JPEG and TIFF formats.

  • Fluorescent in situ hybridization (FISH) analysis for stem cells is suggested for the following indications:

    • As a rapid, cost effective screen for aneuploidy

    • To confirm findings and refine breakpoints detected by chromosome analysis

    • As a targeted screen for a known translocation or microdeletion/duplication

  • Turnaround time

    24 hours after DCI receives the specimen.


    Sample Reports

    Sample Normal Cell Line FISH Report

    Sample Abnormal Cell Line FISH Report

  • Specimen Requirements

    1. Perform a 1:4 split of one confluent T25 flask.

    2. The next day, if the cells are adherent and healthy, fill up 2 flasks with medium and send them to us.

    3. Label the flasks with the cell line, passage date, and your study identifier.

    4. Please also include an aliquot of media along with the flasks in case it is necessary to feed the culture prior to harvesting for metaphase chromosomes.

    5. Fill out the Cell Line Request Form.

    6. Call us at (800) 328-2026.


    For more information, please see our Specimen Requirements and Shipping Information pages.