@Article{096504017X15123838050075,
AUTHOR = {Xianbiao Shi, Xiaoqiao Tang, Lei Su},
TITLE = {Overexpression of Long Noncoding RNA PTENP1 Inhibits Cell Proliferation  and Migration via Suppression of miR-19b in Breast Cancer Cells},
JOURNAL = {Oncology Research},
VOLUME = {26},
YEAR = {2018},
NUMBER = {6},
PAGES = {869--878},
URL = {http://www.techscience.com/or/v26n6/56700},
ISSN = {1555-3906},
ABSTRACT = {This study aimed to investigate the effect of long noncoding RNA PTENP1 in the development of breast cancer 
(BC). Quantitative real-time PCR was utilized to determine the expression of PTENP1 in tissues and cell lines. 
pcDNA3.1 and shRNA were used to over- and low-express PTENP1 in BC cell lines, and miR-19b mimic 
and inhibitor were utilized to over- and low-express miR-19b. Then the abilities of cell survival, apoptosis, 
migration, and invasion were assessed in BC cells with different expression levels of PTENP1 and miR-19b. 
The expression of PTENP1 was significantly downregulated in both BC tissues and cell lines. Overexpressed 
PTENP1 could significantly increase cell survival, colony forming, migration, and invasion but decrease apoptosis in BC cell lines. However, overexpressed miR-19b performed contrary effects compared with PTENP1 
on cell survival, colony forming, migration, invasion, and apoptosis in BC cell lines. miR-19b can be downregulated by PTENP1, and the effect of overexpressed PTENP1 on the PI3k/Akt pathway could be aborted by 
overexpressed miR-19b. PTENP1 performed a negative role in the development of BC via downregulating 
miR-19 probably through the PTEN/PI3K/Akt pathway.},
DOI = {10.3727/096504017X15123838050075}
}