Title |
MicroRNA, hsa-miR-200c, is an independent prognostic factor in pancreatic cancer and its upregulation inhibits pancreatic cancer invasion but increases cell proliferation
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Published in |
Molecular Cancer, June 2010
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DOI | 10.1186/1476-4598-9-169 |
Pubmed ID | |
Authors |
Jun Yu, Kenoki Ohuchida, Kazuhiro Mizumoto, Norihiro Sato, Tadashi Kayashima, Hayato Fujita, Kouhei Nakata, Masao Tanaka |
Abstract |
Recently, the microRNA-200 family was reported to affect cancer biology by regulating epithelial to mesenchymal transition (EMT). Especially, the expression of miR-200c has been shown to be associated with upregulating the expression of E-cadherin, a gene known to be involved in pancreatic cancer behavior. However, the significance of miR-200c in pancreatic cancer is unknown. In the present study, we investigated the relationship between E-cadherin and miR-200c expression in a panel of 14 pancreatic cancer cell lines and in macro-dissected formalin-fixed paraffin-embedded (FFPE) tissue samples obtained from 99 patients who underwent pancreatectomy for pancreatic cancer. We also investigated the effects of miR-200c on the proliferation and invasion of pancreatic cancer cells. We found that patients with high levels of miR-200c expression had significantly better survival rates than those with low levels of miR-200c expression. We also found a remarkably strong correlation between the levels of miR-200c and E-cadherin expression. These data indicate that miR-200c may play a role in the pancreatic cancer biology and may be a novel marker for the prognosis of pancreatic cancer. |
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Researcher | 17 | 20% |
Student > Master | 7 | 8% |
Professor > Associate Professor | 6 | 7% |
Student > Doctoral Student | 4 | 5% |
Other | 7 | 8% |
Unknown | 18 | 21% |
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Chemistry | 2 | 2% |
Other | 5 | 6% |
Unknown | 20 | 24% |