title: Trop2 gene: a novel target for cervical cancer treatment.
abstract: OBJECTIVE
  Trop2 plays an important role in proliferation and invasion of tumors. Extensive research has shown that the expression level of Trop2 is closely related to the progress of cervical diseases. This study was to explore the effects of Trop2 on cell proliferation and apoptosis in cervical cancer.
  
  
  METHODS
  Trop2 was knocked down by shRNA in CaSki cells. The expression level of mRNA and protein was detected by real-time PCR and western blot, respectively. Cell proliferation was determined by CCK-8 and clone formation assay; apoptosis was measured by flow cytometry; cell cycle and apoptosis-related proteins cyclinD1, P53, bcl-2, bax, caspase 3, 8 and 9 were analyzed as well to investigate possible mechanism.
  
  
  RESULTS
  Trop2 expression was effectively repressed in CaSki cells by Trop2 shRNA, which resulted in inhibition of proliferation and colony formation, whereas apoptosis rate was significantly increased. Furthermore, in Trop2 knockdown CaSki cells, the expression of cyclinD1 and bcl-2 was significantly down-regulated, while that of P53 and bax was up-regulated accompanied by increased activities of caspase 9 and 3 but not caspase 8.
  
  
  CONCLUSIONS
  Trop2 is important in proliferation and apoptosis regulation in CaSki cells, which may become a novel target for cervical cancer treatment.
authors.affiliation: Department of Biochemistry and Molecular Biology, Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, 400016, China.
authors.forename: Xiaoqi
authors.initials: X
authors.lastname: Liu
authors.forename: Siqi
authors.initials: S
authors.lastname: Li
authors.forename: Faping
authors.initials: F
authors.lastname: Yi
mesh_terms: D000951:Antigens, Neoplasm / Q000235:genetics* / Q000378:metabolism; D017209:Apoptosis; D051017:Apoptosis Regulatory Proteins / Q000378:metabolism; D020169:Caspases / Q000378:metabolism; D015815:Cell Adhesion Molecules / Q000235:genetics* / Q000378:metabolism; D045744:Cell Line, Tumor; D049109:Cell Proliferation; D005260:Female; D015870:Gene Expression; D055785:Gene Knockdown Techniques; D006801:Humans; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D034741:RNA, Small Interfering / Q000235:genetics; D002583:Uterine Cervical Neoplasms
chemical_list: D000951:Antigens, Neoplasm; D051017:Apoptosis Regulatory Proteins; D015815:Cell Adhesion Molecules; D012333:RNA, Messenger; D034741:RNA, Small Interfering; C499380:TACSTD2 protein, human; D020169:Caspases