Title |
A functional microRNA library screen reveals miR-410 as a novel anti-apoptotic regulator of cholangiocarcinoma
|
---|---|
Published in |
BMC Cancer, June 2016
|
DOI | 10.1186/s12885-016-2384-0 |
Pubmed ID | |
Authors |
Tiziana Palumbo, George A. Poultsides, Grigorios Kouraklis, Theodore Liakakos, Alexandra Drakaki, George Peros, Maria Hatziapostolou, Dimitrios Iliopoulos |
Abstract |
Cholangiocarcinoma is characterized by late diagnosis and a poor survival rate. MicroRNAs have been involved in the pathogenesis of different cancer types, including cholangiocarcinoma. Our aim was to identify novel microRNAs regulating cholangiocarcinoma cell growth in vitro and in vivo. A functional microRNA library screen was performed in human cholangiocarcinoma cells to identify microRNAs that regulate cholangiocarcinoma cell growth. Real-time PCR analysis evaluated miR-9 and XIAP mRNA levels in cholangiocarcinoma cells and tumors. The screen identified 21 microRNAs that regulated >50 % cholangiocarcinoma cell growth. MiR-410 was identified as the top suppressor of growth, while its overexpression significantly inhibited the invasion and colony formation ability of cholangiocarcinoma cells. Bioinformatics analysis revealed that microRNA-410 exerts its effects through the direct regulation of the X-linked inhibitor of apoptosis protein (XIAP). Furthermore, overexpression of miR-410 significantly reduced cholangiocarcinoma tumor growth in a xenograft mouse model through induction of apoptosis. In addition, we identified an inverse relationship between miR-410 and XIAP mRNA levels in human cholangiocarcinomas. Taken together, our study revealed a novel microRNA signaling pathway involved in cholangiocarcinoma and suggests that manipulation of the miR-410/XIAP pathway could have a therapeutic potential for cholangiocarcinoma. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 50% |
Unknown | 1 | 50% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 1 | 50% |
Members of the public | 1 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 23 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 6 | 26% |
Student > Ph. D. Student | 5 | 22% |
Student > Bachelor | 4 | 17% |
Student > Doctoral Student | 1 | 4% |
Lecturer | 1 | 4% |
Other | 2 | 9% |
Unknown | 4 | 17% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 6 | 26% |
Medicine and Dentistry | 6 | 26% |
Agricultural and Biological Sciences | 4 | 17% |
Immunology and Microbiology | 2 | 9% |
Social Sciences | 1 | 4% |
Other | 0 | 0% |
Unknown | 4 | 17% |