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      Overview

      The BD® OMICS-Guard Sample Preservation Buffer is developed and optimized to address the need for high-quality biological sample preservation over an extended period of time when samples cannot be processed at the same time or location.

       

      • Provides a stress-free, one-step preservation protocol with minimum hands-on time
      • Optimized to preserve cells for a variety of downstream transcriptomic, proteomic and multiomic applications, including RNA-seq, CITE-seq, flow cytometry and qPCR​
      • Protects cell viability and preserves different cell populations in your samples for up to 72 hours at 4 °C
      • Developed and tested across multiple sample types: PBMCs and tissue samples
      • Available in two, easy-to-use formats: 50-mL bottle or 12 x 1-mL vials

       

      Download our datasheet to learn more about the BD® OMICS-Guard Sample Preservation Buffer.

      performance1

      One-Step Sample Preservation Workflow

       

       Single-Cell SuspensionTissue

      Recommended Usage

      1 to 10 million cells per 1 mL BD® OMICS-Guard Preservation Buffer

      30 to 50 mg of tissue per 20 mL BD® OMICS-Guard Preservation Buffer

      Storage Temperature

      4 °C

      Storage Duration

      Up to 72 hours

       
      1. Collect single cells/dissociated single cells in suspension and spin at 400 x g for 5 minutes.

      2. Discard the supernatant and resuspend the cells in the BD® OMICS-Guard Preservation Buffer per the recommended usage listed above
        Note: Cells can be stored in Eppendorf tubes or equivalent.

      3. Place the cells at 4 °C for up to 72 hours.

      4. After storage, spin the cells at 800 x g for 5 minutes and discard the supernatant to remove the BD® OMICS-Guard Preservation Buffer. No further washing is required.

      5. Resuspend the cells in desired buffer for downstream applications.
      1. Section tissues into pieces and immediately put into the BD® OMICS-Guard Preservation Buffer.
        Note: aim for sections that are approximately 50 mg in weight.

      2. Place the tissue at 4 °C for up to 72 hours.

      3. After storage, dissociate the tissue by the desired method for single-cell application, spin the cells at 800 x g for 5 minutes, and discard the supernatant to remove the BD® OMICS-Guard Preservation Buffer. No further washing is required.

      4. Resuspend the cells in desired buffer for downstream applications.

      Modifications to single-cell capture on the BD Rhapsody™ Single-Cell Analysis System

      For cells/tissues preserved in BD® OMICS-Guard Preservation Buffer, change the lysis conditions in the single-cell capture workflow from 2 minutes to 5 minutes lysis time.

      Improve Ab-Oligo Signal with the BD® AbSeq Enhancer Kit for BD® OMICS-Guard Buffer-Preserved Samples in CITE-seq

       

      If staining with BD® AbSeq Antibody-Oligos after BD® OMICS-Guard Buffer preservation, use the BD® AbSeq Enhancer Kit to reduce nonspecific binding events and enhance the AbSeq signal.

       

      Applications

      BD® OMICS-Guard Sample Preservation Buffer preserves cell viability, transcriptomic and proteomic profiles, and cell populations in human PBMCs for CITE-seq analyses

      A time course CITE-seq analysis was conducted on the BD Rhapsody™ Single-Cell Analysis System with non-preserved (control) human PBMCs (0 h) and BD® OMICS-Guard Buffer-preserved human PBMCs at 24, 48 and 72 h. PBMCs at each time point were stained with a 30-plex BD® AbSeq Ab-Oligo Panel. Cell viability, gene expression, surface protein expression and the cell population in the preserved PBMCs at 24, 48 and 72 h were analyzed and compared to that of the control PBMC sample (n = 2)
      BD® OMICS-Guard Sample Preservation Buffer preserves cell viability, transcriptome and proteome profiles, and cell populations in mouse spleen tissue for CITE-seq analyses

      A time course CITE-seq analysis was conducted on the BD Rhapsody™ Single-Cell Analysis System with non-preserved (control) mouse spleen tissues (0 h) and BD® OMICS-Guard Buffer-preserved mouse spleen tissues at 24, 48 and 72 h. Dissociated mouse splenocytes at each time point were stained with a 30-plex BD® AbSeq Ab-Oligo Panel. Cell viability, gene expression, surface protein expression and the cell population in preserved mouse spleen tissues at 24, 48 and 72 h were analyzed and compared to that of control mouse spleen tissues (n = 2).
      BD® OMICS-Guard Sample Preservation Buffer preserves surface protein epitopes and cell populations in human PBMCs for flow cytometry analyses

      A time course flow cytometry analysis was conducted using non-preserved (control) human PBMCs (0 h) and BD® OMICS-Guard Buffer-preserved human PBMCs at 24, 48 and 72 h (n = 2). Human PBMCs at each time point were stained with a 13-color fluorescence antibody panel for major immune cell population identification and protein expression analyses and control (0 h) and preserved (24, 48 and 72 h) human PBMCs were compared.
      BD® OMICS-Guard Sample Preservation Buffer preserves protein information in mouse spleen tissue

      A time-course flow cytometry analysis was conducted using non-preserved (control) mouse spleen tissues (0 h) and BD® OMICS-Guard Buffer-preserved mouse spleen tissues at 24, 48 and 72 h (n = 2). Dissociated mouse splenocytes at each time point were stained with an 11-color fluorescence antibody panel for major splenic cell population identification and protein expression analyses and control (0 h) and preserved (24, 48 and 72 h) mouse spleen tissues were compared. The protein expression level and frequencies of major cell populations revealed by flow cytometry analyses in mouse splenocytes stayed consistent over the course of 72 hours, indicating the capability of BD® OMICS-Guard Preservation Buffer to preserve surface protein epitopes and cell composition for flow cytometry analyses.
      Stress-free sample preservation with BD® OMICS-Guard Sample Preservation Buffer demonstrated by expression analysis of 84 stress-associated genes in human PBMCs using qPCR

      Expression of 84 stress-associated genes were compared between fresh and preserved human PBMC samples using qPCR (n = 2). No significant expression changes of stress-associated genes were observed after 48 h of preservation, indicating a stress-free preservation workflow with BD® OMICS-Guard Preservation Buffer.

        

         

      For Research Use Only. Not for use in diagnostic or therapeutic procedures.

       

      Alexa Fluor is a trademark of Life Technologies Corporation. CF is a trademark of Biotium, Inc. Cy is a trademark of Global Life Sciences Solutions Germany GmbH or an affiliate doing business as Cytiva.