Supporting Information Table 1 Cell numbers Experiment Total cell

Supporting Information Table 1

Cell numbers

Experiment

Total cell numbers

Cancer cells

Stellate cells (PS1 unless specified)

Cancer cells alone

5 x 105

0

1.66 x 105

3.33 x 105

1 x 105

0

0.33 x 105

0.66 x 105 (primary

organotypic

Cancer: stellate cells

5 x 105

organotypic

Cancer cells alone mini- organotypic

Cancer: stellate cells mini- organotypic

FGF stimulation

1 x 105

PSC) 1 x 105

assays

Cell growth assays

FACS (PI)

5 x 104

2.5 x 105