Table 2.

Frequencies of multipotential cells detected among CD8⁺ CD44^low T cells

Cytokines considered	No. divisions before cell transfer	No. parent cells assayed	No. multipotential parent cells
IL-4	1	70	32  (46%)
	2	31	19  (61%)
		Total 101	51  (50%)
6 cytokines	1	70	60  (86%)
	2	31	30  (97%)
		Total 101	90  (89%)

Parent cells were defined as multipotential if two of their subclones expressed different cytokine combinations. Frequencies were estimated considering expression of IL-4 alone, or all six assayed cytokines (IFN-γ, IL-2, IL-4, IL-5, IL-6, and IL-10), and for parent cells whose progeny were separated after either one or two divisions.