FlowCam for Cell & Gene Therapy 

Assess the stability and quality of the next generation of biotherapeutics designed to treat cancer, immunize against pathogens, and address genetic disorders. 

Flow imaging microscopy detects aggregation in formulations of viral vectors such as AAVs, lentiviruses, and retroviruses as well as non-viral therapies like LNPs or other gene vector carriers. 
For CAR-T cells and other types of cell-based medicinal products, flow imaging microscopy monitors concentrations of viable and nonviable cells as well as particulate impurities. 

Use FlowCam to:

  • Monitor cell viability, gene vector aggregation, and product contamination
  • Obtain particle type and morphology information to complement orthogonal sizing and counting techniques
  • Characterize particles as small as 300 nm with industry-leading image quality
“In the last 5 years, the [cell and gene therapy] field has expanded dramatically, with unprecedented approvals. There is now a greater need to move the discussion toward particulate management in cell- and gene-specific regulatory guidance.”

Formulation Development of Viral and Non-Viral Vectors 

Like other parenteral biotherapeutics, injectables in gene therapy are subject to regulations like USP <788> that require particle testing to mitigate safety risks.

Flow imaging microscopy techniques allow for the identification and characterization of particle types in your formulation, enabling you to make formulation and process improvements during product development. 

  • Meet USP requirements and recommendations with FlowCam LO—a combined flow imaging and light obscuration instrument 
  • Detect gene vector aggregates such as LNP oligomers as small as 300 nm with FlowCam Nano

CAR-T Therapy Applications 

The inherently large size of therapeutic cells (4-15 µm) restricts the use of sterile filtration and other size-based separations to remove subvisible process impurities and contaminants like DynabeadsTM and cellular debris. 

Flow imaging microscopy enables you to mitigate potentially harmful particles in your formulation and monitor cell viability.  

  • Differentiate between cells, cell-based impurities, and process-based impurities like Dynabeads to optimize product manufacturing 
  • Utilize image analysis tools in VisualSpreadsheet to measure cell concentrations and viability in samples without the need for fluorescence labeling  

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