Specialized endothelial tip cells guide neuroretina vascularization and blood-retina-barrier formation.
Specialized endothelial tip cells guide neuroretina vascularization and blood-retina-barrier formation.
复制标题
特殊的内皮细胞引导视网膜血管形成和血-视网膜屏障的形成。
DOI:
10.1016/j.devcel.2021.06.021
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发表时间:
2021-08-09
影响因子:
11.8
通讯作者:
Dubrac, Alexandre
中科院分区:
文献类型:
--
作者:
Zarkada, Georgia;Howard, Joel P.;Xiao, Xue;Park, Hyojin;Bizou, Mathilde;Leclerc, Severine;Kunzel, Steffen E.;Boisseau, Blanche;Li, Jinyu;Cagnone, Gael;Joyal, Jean Sebastien;Andelfinger, Gregor;Eichmann, Anne;Dubrac, Alexandre
Endothelial tip cells guiding tissue vascularization are primary targets for angiogenic therapies. Whether tip cells require differential signals to develop their complex branching patterns remained unknown. Here, we show that diving tip cells invading the mouse neuroretina (D-tip cells) are distinct from tip cells guiding the superficial retinal vascular plexus (S-tip cells). D-tip cells have a unique transcriptional signature, including high TGF-β signaling, and they begin to acquire blood-retina barrier properties. Endothelial deletion of TGF-β receptor I (Alk5) inhibits D-tip cell identity acquisition and deep vascular plexus formation. Loss of endothelial ALK5, but not of the canonical SMAD effectors, leads to aberrant contractile pericyte differentiation and hemorrhagic vascular malformations. Oxygen-induced retinopathy vasculature exhibits S-like tip cells, and Alk5 deletion impedes retina revascularization. Our data reveal stage-specific tip cell heterogeneity as a requirement for retinal vascular development and suggest that non-canonical-TGF-β signaling could improve retinal revascularization and neural function in ischemic retinopathy. As initiators of neovascularization, endothelial tip cells are primary targets for angiogenic therapies. Zarkada et al. use scRNA sequencing to identify a TGF-β-dependent tip cell population that promotes neuroretina vascularization and could be targeted therapeutically to promote revascularization in retinopathies.
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影响因子:
16.6
作者:
Aspalter IM;Gordon E;Dubrac A;Ragab A;Narloch J;Vizán P;Geudens I;Collins RT;Franco CA;Abrahams CL;Thurston G;Fruttiger M;Rosewell I;Eichmann A;Gerhardt H
通讯作者:
Gerhardt H
影响因子:
20.8
作者:
Chen, Pei-Yu;Qin, Lingfeng;Simons, Michael
通讯作者:
Simons, Michael
影响因子:
5.4
作者:
Blanco, Raquel;Gerhardt, Holger
通讯作者:
Gerhardt, Holger
影响因子:
64.5
作者:
De Bock, Katrien;Georgiadou, Maria;Carmeliet, Peter
通讯作者:
Carmeliet, Peter
影响因子:
4.8
作者:
Amano, M;Ito, M;Kaibuchi, K
通讯作者:
Kaibuchi, K