DSCAM-AS1 and bone metastasis: In addition, we found an average expression of DSCAM-AS1 in four cell lines with different cellular staging, however, the four cells were of different origins, with LNCaP from lymph node metastasis, PC3 from bone metastasis, Du-145 from brain metastasis, and 22RV1 from the non-metastatic portion.Whether this is related to the mechanism of action of DSCAM-AS1 deserves further investigation.