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.