PUBLICATION

CD146 is required for VEGF-C-induced lymphatic sprouting during lymphangiogenesis

Authors
Yan, H., Zhang, C., Wang, Z., Tu, T., Duan, H., Luo, Y., Feng, J., Liu, F., Yan, X.
ID
ZDB-PUB-170809-6
Date
2017
Source
Scientific Reports   7: 7442 (Journal)
Registered Authors
Liu, Feng, Zhang, Chunxia
Keywords
Growth factor signalling, Lymphangiogenesis
MeSH Terms
  • Zebrafish
  • p38 Mitogen-Activated Protein Kinases/metabolism
  • Human Umbilical Vein Endothelial Cells
  • Mice
  • CD146 Antigen/genetics
  • CD146 Antigen/metabolism
  • Gene Knockdown Techniques
  • Lymphatic Vessels/cytology*
  • Lymphatic Vessels/metabolism
  • Cell Proliferation
  • Lymphangiogenesis*
  • Vascular Endothelial Growth Factor C/metabolism*
  • Cell Line
  • Animals
  • Cell Movement
  • Extracellular Signal-Regulated MAP Kinases/metabolism
  • HEK293 Cells
  • Humans
PubMed
28785085 Full text @ Sci. Rep.
Abstract
VEGF-C is essential for lymphangiogenesis during development and tumor progression. VEGFR-3 is the well-known cognate receptor of VEGF-C to regulate lymphatic migration and proliferation, but the receptor of VEGF-C in regulating lymphatic sprouting, the initiating step of lymphangiogenesis, still remains elusive. Here we use both in vitro and in vivo methods to demonstrate CD146 as a receptor of VEGF-C to regulate lymphangiogenesis, especially at the sprouting step. Mechanistically, CD146 selectively activates the downstream p38 kinase, upon VEGF-C stimulation, to regulate lymphatic sprouting. Moreover, CD146 can also activate ERK to mediate VEGF-C regulation of the subsequent proliferation and migration of lymphatic endothelial cells. In zebrafish embryos, knockdown or dysfunction of CD146 results in similar developmental defects in lymphatic sprouting, capillary network, parachordal lymphangioblast (PL), and thoracic duct (TD) similar to down-regulation of VEGF-C. Altogether, our data reveals a critical role of CD146 to mediate VEGF-C signaling pathway in lymphangiogenesis.
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