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Pin1 contributes to cervical tumorigenesis by regulating cyclin D1 expression
Hongyu Li1, Shixuan Wang, Tao Zhu
1Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei 430030, PR China.
Oncology Reports
|July 26, 2006
Summary
Prolyl isomerase Pin1 (an enzyme) drives cervical cancer by regulating cyclin D1. Silencing Pin1 with RNA interference inhibits cancer cell growth and promotes apoptosis, suggesting Pin1 as a therapeutic target.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Prolyl isomerase Pin1 is implicated in oncogenic pathways.
- Pin1 is overexpressed in cervical cancer tissues and cell lines.
- The specific role of Pin1 in cervical carcinogenesis remains unclear.
Purpose of the Study:
- To investigate Pin1's role in cervical oncogenesis via cyclin D1 regulation.
- To evaluate Pin1-targeted gene silencing for inhibiting cervical cancer growth and tumorigenicity.
Main Methods:
- Construction of Pin1-directed shRNA and sense Pin1 plasmid.
- Evaluation of shRNA and plasmid effects on HeLa cervical cancer cells.
- Assessment of cell proliferation, colony formation, and apoptosis.
Main Results:
- Pin1 was confirmed to directly regulate cyclin D1 levels.
- RNAi-mediated silencing of Pin1 significantly reduced HeLa cell proliferation and colony formation.
- Pin1 silencing strongly enhanced apoptosis in HeLa cells.
Conclusions:
- Pin1 contributes to cervical tumorigenesis by regulating cyclin D1 expression.
- Pin1 represents a promising molecular target for cervical cancer diagnostics and therapeutics.