TABLE 1.

Relative fluorescence intensity of CD44 on cells and protein-coated beads

CD44 expression on cells or microspheres coated with immunoprecipitated CD44 from the corresponding cell type was quantified by single-color immunofluorescence and flow cytometry using the PE-conjugated anti-CD44 mAb 515. Background levels were determined by incubating cell or microsphere suspensions with the properly matched PE-conjugated mouse IgG isotype control antibody. Values represent mean fluorescence intensity ± S.E. from n = 5 to 8 experiments.

Cell type	Mean fluorescence intensity
	Cells	Beads
LS174T	1205 ± 88	1191 ± 139
HL60	626 ± 10	700 ± 66
T84	654 ± 68	726 ± 195