Abstract:
:Mural cells (pericytes and vascular smooth muscle cells) are essential for the regulation of vascular networks and maintenance of vascular integrity, but their origins are diverse in different tissues and not known in the organs that arise from the ectoderm, such as skin. Here, we show that tissue-localized myeloid progenitors contribute to pericyte development in embryonic skin vasculature. A series of in vivo fate-mapping experiments indicates that tissue myeloid progenitors differentiate into pericytes. Furthermore, depletion of tissue myeloid cells and their progenitors in PU.1 (also known as Spi1) mutants results in defective pericyte development. Fluorescence-activated cell sorting (FACS)-isolated myeloid cells and their progenitors from embryonic skin differentiate into pericytes in culture. At the molecular level, transforming growth factor-β (TGF-β) induces pericyte differentiation in culture. Furthermore, type 2 TGF-β receptor (Tgfbr2) mutants exhibit deficient pericyte development in skin vasculature. Combined, these data suggest that pericytes differentiate from tissue myeloid progenitors in the skin vasculature through TGF-β signaling.
journal_name
Cell Repjournal_title
Cell reportsauthors
Yamazaki T,Nalbandian A,Uchida Y,Li W,Arnold TD,Kubota Y,Yamamoto S,Ema M,Mukouyama YSdoi
10.1016/j.celrep.2017.02.069subject
Has Abstractpub_date
2017-03-21 00:00:00pages
2991-3004issue
12issn
2211-1247pii
S2211-1247(17)30287-5journal_volume
18pub_type
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