DKK2 and cervical carcinoma: We examined DKK2 mRNA expression in 79 normal cervical tissues (50 by data mining, 29 by RT-PCR), 9 cervical cancer lines (HT-3, C4-I, CaSki, MS751, C33A, SiHa, SW756, ME-180, and HeLa cell lines by data mining, HeLa, HT-3, C33A, and CaSki cell lines by RT-PCR), and 498 cervical cancer samples (419 by data mining, 79 by RT-PCR).