TY - JOUR
T1 - Engineered patterns of Notch ligands Jag1 and Dll4 elicit differential spatial control of endothelial sprouting
AU - Tiemeijer, Laura A.
AU - Ristori, Tommaso
AU - Stassen, Oscar M.J.A.
AU - Ahlberg, Jaakko J.
AU - de Bijl, Jonne J.J.
AU - Chen, Christopher S.
AU - Bentley, Katie
AU - Bouten, Carlijn V.C.
AU - Sahlgren, Cecilia M.
N1 - Funding Information:
Funding: this study was supported by the Academy of Finland , grant numbers 307133 , 316882 , and 330411 (LAT, OMJAS, CMS); the Marie Sklodowska-Curie Global Fellowship , grant number 846617 (to TR); ERC ForceMorph , grant number 771168 (OMJAS, CMS). LAT was supported by the Turku Doctoral Network in Molecular Biosciences at Åbo Akademi University . CSC was supported by NIH ( EB00262 and HL147585 ). KB was supported by the Francis Crick Institute , which receives its core funding from Cancer Research UK ( FC001751 ), the UK Medical Research Council ( FC001751 ), and the Wellcome Trust ( FC001751 ). We gratefully acknowledge the Gravitation Program “Materials Driven Regeneration”, funded by the Netherlands Organisation for Scientific Research ( 024.003.013 ) (CVB), the InFLAMES Flagship Program of the Academy of Finland ( 337531 ) (LAT, CMS), and the Åbo Akademi University Foundation’s Center of Excellence in Cellular Mechanostasis (CellMech) (CMS).
Funding Information:
Funding: this study was supported by the Academy of Finland, grant numbers 307133, 316882, and 330411 (LAT, OMJAS, CMS); the Marie Sklodowska-Curie Global Fellowship, grant number 846617 (to TR); ERC ForceMorph, grant number 771168 (OMJAS, CMS). LAT was supported by the Turku Doctoral Network in Molecular Biosciences at Åbo Akademi University. CSC was supported by NIH (EB00262 and HL147585). KB was supported by the Francis Crick Institute, which receives its core funding from Cancer Research UK (FC001751), the UK Medical Research Council (FC001751), and the Wellcome Trust (FC001751). We gratefully acknowledge the Gravitation Program “Materials Driven Regeneration”, funded by the Netherlands Organisation for Scientific Research (024.003.013) (CVB), the InFLAMES Flagship Program of the Academy of Finland (337531) (LAT, CMS), and the Åbo Akademi University Foundation's Center of Excellence in Cellular Mechanostasis (CellMech) (CMS). Conceptualization: LAT, TR, CMS. Formal Analyses: LAT, TR, OMJAS. Funding Acquisition: TR, KB, CS, CVCB, CMS. Investigation: LAT, TR, JJJB, JJA, OMJAS. Methodology: LAT, TR, CMS. Project Administration: LAT, TR, CMS. Resources: CSC, CVCB, CMS. Software: TR, JJJB. Supervision: CSC, KB, CVCB, CMS. Validation: LAT, TR, CMS. Visualization: LAT, TR. Writing—Original Draft: LAT, TR. Writing—Review and Editing: LAT, TR, OMJAS, CSC, KB, CVCB, CMS. Authors declare that they have no competing interests.
Publisher Copyright:
© 2022 The Author(s)
PY - 2022/5/20
Y1 - 2022/5/20
N2 - Spatial regulation of angiogenesis is important for the generation of functional engineered vasculature in regenerative medicine. The Notch ligands Jag1 and Dll4 show distinct expression patterns in endothelial cells and, respectively, promote and inhibit endothelial sprouting. Therefore, patterns of Notch ligands may be utilized to spatially control sprouting, but their potential and the underlying mechanisms of action are unclear. Here, we coupled in vitro and in silico models to analyze the ability of micropatterned Jag1 and Dll4 ligands to spatially control endothelial sprouting. Dll4 patterns, but not Jag1 patterns, elicited spatial control. Computational simulations of the underlying signaling dynamics suggest that different timing of Notch activation by Jag1 and Dll4 underlie their distinct ability to spatially control sprouting. Hence, Dll4 patterns efficiently direct the sprouts, whereas longer exposure to Jag1 patterns is required to achieve spatial control. These insights in sprouting regulation offer therapeutic handles for spatial regulation of angiogenesis.
AB - Spatial regulation of angiogenesis is important for the generation of functional engineered vasculature in regenerative medicine. The Notch ligands Jag1 and Dll4 show distinct expression patterns in endothelial cells and, respectively, promote and inhibit endothelial sprouting. Therefore, patterns of Notch ligands may be utilized to spatially control sprouting, but their potential and the underlying mechanisms of action are unclear. Here, we coupled in vitro and in silico models to analyze the ability of micropatterned Jag1 and Dll4 ligands to spatially control endothelial sprouting. Dll4 patterns, but not Jag1 patterns, elicited spatial control. Computational simulations of the underlying signaling dynamics suggest that different timing of Notch activation by Jag1 and Dll4 underlie their distinct ability to spatially control sprouting. Hence, Dll4 patterns efficiently direct the sprouts, whereas longer exposure to Jag1 patterns is required to achieve spatial control. These insights in sprouting regulation offer therapeutic handles for spatial regulation of angiogenesis.
KW - Bioengineering
KW - Biological sciences
KW - Developmental biology
KW - Tissue engineering
UR - http://www.scopus.com/inward/record.url?scp=85129970334&partnerID=8YFLogxK
U2 - 10.1016/j.isci.2022.104306
DO - 10.1016/j.isci.2022.104306
M3 - Article
AN - SCOPUS:85129970334
SN - 2589-0042
VL - 25
JO - iScience
JF - iScience
IS - 5
M1 - 104306
ER -