The invention includes various kits which comprise a compound, such as a nucleic acid encoding PCADM-1, an antibody that specifically binds PCADM-1, a PCADM-1 DNAZYM (i.e. DNAZYM) complementary, in part, to a nucleic acid encoding PCADM-1 that specifically cleaves PCADM-1 mRNA (e.g., a nucleic acid having sequence SEQ ID NO:9 (PCADM-1 DNAZYM-1), and SEQ ID NO:10, and the like) and/or compositions