PARAMETER

MEASUREMENT METHOD OR PROBE IF USED

Intrinsic Parameters

(no probes needed)

Cell size

Forward light scatter

Cytoplasmic granularity

Right angle (or side) light scatter

Cell shape and aggregation

Pulse shape analysis

Autofluorescence

Fluorescence

Extrinsic Parameters

Antigens

Fluorescence (labeled antibodies)

DNA content

Fluorescence (e.g., PI)

Nucleic acid sequence

Fluorescence (e.g., EGFP, β-gal)

RNA content

Fluorescence (e.g., AO)

Surface sugars

Fluorescence (labeled lectins)

Extrinsic Functional Parameters

Membrane integrity (viability)

Fluorescence (PI)

DNA degradation (apoptosis)

Fluorescence (e.g., PI)

DNA synthesis

Fluorescence (anti-BrUdR antibodies)

Cytokines

Fluorescence (labeled antibodies)

Cell division

Fluorescence (CFSE)

Conjugate formation

Fluorescence (HE, calcein, etc.)

Surface receptors

Fluorescence (labeled ligands)

Membrane organization

Fluorescence (Annexin)

Intracellular receptors

Fluorescence (labeled ligands)

Cytoplasmic Ca++

Fluorescence ratio (indo-1); fluorescence (fluo-3)

Intracellular pH

Fluorescence ratio (e.g., SNARF)