The present invention is directed to isolated nucleic acid molecules that
encode LIM mineralization protein, or LMP. The invention further provides
vectors comprising nucleotide sequences that encode LMP, as well as host
cells comprising those vectors. Moreover, the present invention relates
to methods of inducing bone formation by transfecting osteogenic
precursor cells with an isolated nucleic acid molecule comprising a
nucleotide sequence encoding LIM mineralization protein. The transfection
may occur ex vivo or in vivo by direct injection of virus or naked
plasmid DNA. In a particular embodiment, the invention provides a method
of fusing a spine by transfecting osteogenic precursor cells with an
isolated nucleic acid molecule having a nucleotide sequence encoding LIM
mineralization protein, admixing the transfected osteogenic precursor
cells with a matrix and contacting the matrix with the spine. Finally,
the invention relates to methods for inducing systemic bone formation by
stable transfection of host cells with the vectors of the invention.