The present invention provides DNAzymes and ribozymes that specifically cleave PAI-1-encoding mRNA. The present invention also provides antisense oligonucleotides that specifically inhibit translation of PAI-1-encoding mRNA. The invention also provides various methods of inhibiting the expression of PAI-1, and methods of treating diseases by such. Finally the invention provides pharmaceutical compositions containing the instant DNAzymes, ribozymes, antisense oligonucleotides, or other inhibitors of PAI-1 expression as active ingredients.