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+86 21 5808 0192

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CFSE Cell Proliferation Assay
面议
CFDA SE diffuses into cells, is converted to fluorescent CFSE by esterases, and binds covalently to proteins. Fluorescence halves with each division, enabling precise tracking of proliferation generations and dividing cell proportions via flow cytometry.
Applications:
  • T cell activation and proliferation studies
  • Evaluation of drug-induced inhibition or promotion of proliferation
  • Mixed lymphocyte reaction (MLR)
  • Assessment of Treg immunosuppressive function
  • Proliferation assessment of cell therapy products
  • Screening for antibody-mediated inhibition of proliferation
Service Advantages:
  1. Generation tracking: Quantifies cell division generations
    (up to 7-8 generations)
  2. High sensitivity: Clearly distinguishes proliferating from
    non-proliferating cell populations
  3. Live-cell compatible: Labeling does not affect cell viability
    or function
  4. Multiplex compatibility: Can be combined with phenotypic antibody
    staining to analyze proliferation within specific subsets
  5. Intuitive visualization: Fluorescence peak profiles clearly
    depict proliferation kinetics

CFDA SE (5(6)-carboxyfluorescein diacetate succinimidyl ester)
freely diffuses across the cell membrane and is converted
intracellularly by esterases into fluorescent CFSE, which covalently
binds to intracellular proteins. With each cell division the CFSE
fluorescence intensity is halved. By detecting the successive peaks
of stepwise decreasing fluorescence intensity through flow cytometry,
both the number of proliferation generations and the proportion of
dividing cells can be accurately tracked - making this the classic
method for assessing proliferative capacity.

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