Table 3.

Growth Factor and Growth Factor Receptor Expression in Tubers

Protein	GCs, %	Distribution
EGF	68	ALL
EGFR	91	ALL
Flt-1	11	ALL
HGF	74	ALL
HIF-1α	42	WM
c-Met	71	WM
VEGF	83	ALL

Table depicts percent of morphologically identified GCs expressing each protein marker, across all 10 tuber specimens. ALL, expression detected across all layers; WM, relative enrichment of labeled cells in subcortical white matter.