FOX

(E-F) Images and results from microfluidic devices containing human kidney capillaries from young healthy kidneys (n = 6 per group, 2 donors) (E) or aged hypertensive kidneys (n = 5 per group, 1 donor) (F), stimulated to undergo sprouting angiogenesis with VEGF. In the presence of the FOXO1 inhibitor AS1842856 both healthy capillaries and aged capillaries successfully form new capillaries with tip-stalk structures. FOXO1 inhibition enables angiogenic capacity in kidney MVECs like that seen in HUVECs. Capillaries engineered from aged hypertensive kidneys had a higher tendency to form new vascular structures, although these did not show tip cell morphology (F, lower left images). FOXO1 inhibition enhanced new vessel formation with obvious tip cell morphology. Note bpV was less effective in aged capillary.

(E-F) Images and results from microfluidic devices containing human kidney capillaries from young healthy kidneys (n = 6 per group, 2 donors) (E) or aged hypertensive kidneys (n = 5 per group, 1 donor) (F), stimulated to undergo sprouting angiogenesis with VEGF. In the presence of the FOXO1 inhibitor AS1842856 both healthy capillaries and aged capillaries successfully form new capillaries with tip-stalk structures. FOXO1 inhibition enables angiogenic capacity in kidney MVECs like that seen in HUVECs. Capillaries engineered from aged hypertensive kidneys had a higher tendency to form new vascular structures, although these did not show tip cell morphology (F, lower left images). FOXO1 inhibition enhanced new vessel formation with obvious tip cell morphology. Note bpV was less effective in aged capillary.