Nal vascular heterogeneity database described here. The comprehensive vascular heterogeneity reference library from organotypic ECs provides the means to recognize many vascular-niche-dependent angiocrine pathways involved in safeguarding the integrity of tissue-specific stem and Immunoglobulin Fc Region Proteins Biological Activity progenitor cells at steady states andNIH-PA Author Manuscript NIH-PA Author Manuscript NIH-PA Author ManuscriptDev Cell. Author manuscript; out there in PMC 2014 January 29.Nolan et al.Pageduring organ regeneration. Unraveling the molecular determinants of vascular heterogeneity brings us closer to develop methods to capitalize on the instructive potential of