Micro-RNA's that regulate muscle cells

Abstract

What is claimed is: 1. A method of inducing differentiation of a muscle progenitor cell in vitro comprising contacting said cell with an agonist of miR-1-1 or miR-1-2 activity or expression. 2. The method of claim 1 , further comprising culturing said cell in vitro. 3. The method of claim 1 ,