8:15 AM. 389. Off-target fibrotic effects of pro-angiogenic brain-reparative hydrogels and the role of microglia-pericyte crosstalk.Emma Whitehead, B.S.1, Tatiana Segura, PhD1, Katrina Wilson, PhD2, Kevin Erning, PhD3, Nicole Ratterman1 1Duke University, 2KBI BioPharma, 3Biomedical Engineering