ZFIN ID: ZDB-PUB-121214-3
Phospholipase c gamma-1 is required for granulocyte maturation in zebrafish
Jing, C.B., Chen, Y., Dong, M., Peng, X.L., Jia, X.E., Gao, L., Ma, K., Deng, M., Liu, T.X., Zon, L.I., Zhu, J., Zhou, Y., and Zhou, Y.
Date: 2013
Source: Developmental Biology   374(1): 24-31 (Journal)
Registered Authors: Chen, Yi, Deng, Min, Dong, Mei, Liu, Ting Xi, Zhou, Yi, Zhou, Yong, Zon, Leonard I.
Keywords: zebrafish, granulocytes, mpx, phospholipase C gamma-1 (plcg1)
MeSH Terms:
  • Animals
  • Cell Differentiation
  • Cell Lineage
  • Gene Expression Regulation, Developmental*
  • Granulocytes/cytology*
  • Hematopoiesis
  • Hematopoietic Stem Cells/cytology
  • Histones/metabolism
  • Microscopy, Confocal/methods
  • Models, Genetic
  • Mutagenesis
  • Mutation
  • Phenotype
  • Phospholipase C gamma/genetics
  • Phospholipase C gamma/physiology*
  • Phosphorylation
  • Plasmids/metabolism
  • RNA, Messenger/metabolism
  • Zebrafish
PubMed: 23220656 Full text @ Dev. Biol.

The regulation of hematopoiesis is generally evolutionarily conserved from zebrafish to mammals, including hematopoietic stem cell formation and blood cell lineage differentiation. In zebrafish, primitive granulocytes originate at two distinct regions, the anterior lateral plate mesoderm (A-LPM) and the intermediate cell mass (ICM). Few studies in the zebrafish have examined genes specifically required for the granulocytic lineage. In this study, we identified the responsible gene for a zebrafish mutant that has relatively normal hematopoiesis, except decreased expression of the granulocyte-specific gene mpx. Positional cloning revealed that phospholipase C gamma-1 (plcg1) was mutated. Deficiency of plcg1 function specifically affected development of granulocytes, especially the maturation process. These results suggested that plcg1 functioned specifically in zebrafish ICM granulopoiesis for the first time. Our studies suggest that specific pathways regulate the differentiation of the hematopoietic lineages.