PMID- 23317233 OWN - NLM STAT- MEDLINE DCOM- 20130702 LR - 20231213 IS - 2476-762X (Electronic) IS - 1513-7368 (Linking) VI - 13 IP - 11 DP - 2012 TI - ppGalNAc T1 as a potential novel marker for human bladder cancer. PG - 5653-7 AB - OBJECTIVES: To investigate the effect of glycopeptide-preferring polypeptide GalNAc transferase 1 (ppGalNAc T1) targeted RNA interference (RNAi) on the growth and migration of human bladder carcinoma EJ cells in vitro and in vivo. METHODS: DNA microarray assays were performed to determine ppGalNAc Ts(ppGalNAc T1-9) expression in human bladder cancer and normal bladder tissues. We transfected the EJ bladder cancer cell line with well-designed ppGalNAc T1 siRNA. Boyden chamber and Wound healing assays were used to investigate changes of shppGalNAc T1-EJ cell migration. Proliferation of shppGalNAc T1-EJ cells in vitro was assessed using [3H]-thymidine incorporation assay and soft agar colony formation assays. Subcutaneous bladder tumors in BALB/c nude mice were induced by inoculation of shppGalNAc T1-EJ cells and after inoculation diameters of tumors were measured every 5 days to determine gross tumor volumes. RESULTS: ppGalNAc T1 mRNA in bladder cancer tissues was 11.2-fold higher than in normal bladder tissues. When ppGalNAc T1 expression in EJ cells was knocked down through transfection by pSUPER-shppGalNAc T1 vector, markedly reduced incorporation of [3H]-thymidine into DNA of EJ cells was observed at all time points compared with the empty vector transfected control cells. However, ppGalNAc T1 knockdown did not significantly inhibited cell migration (only 12.3%). Silenced ppGalNAc T1 expression significantly inhibited subcutaneous tumor growth compared with the control groups injected with empty vector transfected control cells. At the end of observation course (40 days), the inhibitory rate of cancerous growth for ppGalNAc T1 knockdown was 52.5%. CONCLUSION: ppGalNAc T1 might be a potential novel marker for human bladder cancer. Although ppGalNAc T1 knockdown caused no remarkable change in cell migration, silenced expression significantly inhibited proliferation and tumor growth of the bladder cancer EJ cell line. FAU - Ding, Ming-Xia AU - Ding MX AD - Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Yunnan Institute of Urology, Kunming, China E-mail : jiansongwang@126.com. FAU - Wang, Hai-Feng AU - Wang HF FAU - Wang, Jian-Song AU - Wang JS FAU - Zhan, Hui AU - Zhan H FAU - Zuo, Yi-Gang AU - Zuo YG FAU - Yang, De-Lin AU - Yang DL FAU - Liu, Jing-Yu AU - Liu JY FAU - Wang, Wei AU - Wang W FAU - Ke, Chang-Xing AU - Ke CX FAU - Yan, Ru-Ping AU - Yan RP LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Thailand TA - Asian Pac J Cancer Prev JT - Asian Pacific journal of cancer prevention : APJCP JID - 101130625 RN - 0 (Biomarkers, Tumor) RN - 0 (RNA, Messenger) RN - 0 (RNA, Small Interfering) RN - EC 2.4.1.- (N-Acetylgalactosaminyltransferases) SB - IM MH - Animals MH - Apoptosis MH - Biomarkers, Tumor/genetics/*metabolism MH - Blotting, Western MH - *Cell Movement MH - *Cell Proliferation MH - Colony-Forming Units Assay MH - Female MH - Flow Cytometry MH - Humans MH - Mice MH - Mice, Inbred BALB C MH - Mice, Nude MH - N-Acetylgalactosaminyltransferases/antagonists & inhibitors/genetics/*metabolism MH - RNA, Messenger/genetics MH - RNA, Small Interfering/genetics MH - Real-Time Polymerase Chain Reaction MH - Reverse Transcriptase Polymerase Chain Reaction MH - Urinary Bladder/*metabolism MH - Urinary Bladder Neoplasms/genetics/metabolism/*pathology MH - Polypeptide N-acetylgalactosaminyltransferase EDAT- 2013/01/16 06:00 MHDA- 2013/07/03 06:00 CRDT- 2013/01/16 06:00 PHST- 2013/01/16 06:00 [entrez] PHST- 2013/01/16 06:00 [pubmed] PHST- 2013/07/03 06:00 [medline] AID - 10.7314/apjcp.2012.13.11.5653 [doi] PST - ppublish SO - Asian Pac J Cancer Prev. 2012;13(11):5653-7. doi: 10.7314/apjcp.2012.13.11.5653.