The chemokine Sdf-1 and its receptor Cxcr4 are required for formation of muscle in zebrafish.

ABSTRACT:

Background

During development cell migration takes place prior to differentiation of many cell types. The chemokine receptor Cxcr4 and its ligand Sdf1 are implicated in migration of several cell lineages, including appendicular muscles.

Results

We dissected the role of sdf1-cxcr4 during skeletal myogenesis. We demonstrated that the receptor cxcr4a is expressed in the medial-anterior part of somites, suggesting that chemokine signaling plays a role in this region of the somite. Previous reports emphasized co-operation of Sdf1a and Cxcr4b. We found that during early myogenesis Sdf1a co-operates with the second Cxcr4 of zebrafish - Cxcr4a resulting in the commitment of myoblast to form fast muscle. Disrupting this chemokine signal caused a reduction in myoD and myf5 expression

SUBMITTER: Chong SW 

PROVIDER: S-EPMC1904199 | biostudies-literature | 2007 May

REPOSITORIES: biostudies-literature