Title: Role of synectin in lymphatic development in zebrafish and frogs
Authors: Hermans, Karlien ×
Claes, Filip
Vandevelde, Wouter
Zheng, Wei
Geudens, Ilse
Orsenigo, Fabrizio
De Smet, Frederik
Gjini, Evisa
Anthonis, Kristof
Ren, Bin
Kerjaschki, Dontscho
Autiero, Monica
Ny, Annelii
Simons, Michael
Dewerchin, Mieke
Schulte-Merker, Stefan
Dejana, Elisabetta
Alitalo, Kari
Carmeliet, Peter #
Issue Date: Oct-2010
Series Title: Blood vol:116 issue:17 pages:3356-3366
Abstract: The molecular basis of lymphangiogenesis remains incompletely characterized. Here, we document a novel role for the PDZ domain-containing scaffold protein synectin in lymphangiogenesis using genetic studies in zebrafish and tadpoles. In zebrafish, the TD arises from parachordal lymphangioblast (PL) cells, which in turn derive from secondary lymphangiogenic sprouts from the posterior cardinal vein (PCV). Morpholino knockdown of synectin in zebrafish impaired formation of the thoracic duct (TD), due to selective defects in lymphangiogenic but not angiogenic sprouting. Synectin genetically interacted with Vegfr3 and neuropilin-2a in regulating lymphangiogenesis. Silencing of synectin in tadpoles caused lymphatic defects due to an underdevelopment and impaired migration of Prox-1(+) lymphatic ECs (LECs). Molecular analysis further revealed that synectin regulated Sox18-induced expression of Prox-1 and VEGFC-induced migration of LECs in vitro. These findings reveal a novel role for synectin in lymphatic development.
ISSN: 0006-4971
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular and Vascular Biology
Division of Gene Technology (-)
Vesalius Research Centre (-)
Switch Laboratory
Laboratory of Angiogenesis and Vascular Metabolism (VIB-KU Leuven Centre for Cancer Biology) (+)
× corresponding author
# (joint) last author

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