title: [The regulation mechanism of MASPIN expression in ovarian carcinoma].
abstract: OBJECTIVE
  To study the regulation of P63 on expression of MASPIN in ovarian cancer by observe MASPIN promoter activity changes before and after transient transfection of constructed P63 and MASPIN reporter gene plasmids.
  
  
  METHODS
  The MASPIN reporter plasmid, fused with luciferase reporter gene, was constructed and transfected into SKOV3 cells together with P63 (TAP63, ANP63) express plasmid transiently. The MASPIN promoter activity was determined in both the transfected cells and controlled ones by Luciferase Assays and the transcription of MASPIN mRNA of them was evaluated with semi quantitative RT-PCR.
  
  
  RESULTS
  The MASPIN reporter plasmid was successfully constructed and transiently transfected into SKOV3 cells together with P63 (TAP63, ANP63) expression plasmid. The data showed among the tested P63 splice variants, TAP63 remarkably activated MASPIN promoter transactivation (P < 0.05). No significant difference in the activity level of MASPIN promoter was detected in the SKOV3-vector and SKOV3-ANP63 cells (P > 0.05). The level of MASPIN mRNA expression was notably enhanced in SKOV3-TAP63 cell after transient transfected with TAP63 express plasmid (P < 0.05), but no significant difference among the SKOV3, SKOV3-vector and SKOV3-ANP63 cell (P > 0.05) was detected.
  
  
  CONCLUSIONS
  TAP63 can activate the transcription activity of MASPIN promoter, as well as regulate the expression of MASPIN. Put all together, these results suggested that MASPIN is a new molecular target of P63.
authors.affiliation: Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Ma
authors.forename: Zhi-Lan
authors.initials: ZL
authors.lastname: Peng
authors.forename: Xin
authors.initials: X
authors.lastname: Chen
authors.forename: Xi
authors.initials: X
authors.lastname: Li
authors.forename: Ju-Fang
authors.initials: JF
authors.lastname: Yan
mesh_terms: D045744:Cell Line, Tumor; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D017930:Genes, Reporter; D005822:Genetic Vectors; D006801:Humans; D010051:Ovarian Neoplasms / Q000378:metabolism*; D010957:Plasmids; D011401:Promoter Regions, Genetic; D012333:RNA, Messenger; D015843:Serpins / Q000378:metabolism*; D014157:Transcription Factors / Q000378:metabolism*; D014162:Transfection; D025521:Tumor Suppressor Proteins / Q000378:metabolism*
chemical_list: D012333:RNA, Messenger; C085344:SERPIN-B5; D015843:Serpins; C115051:TP63 protein, human; D014157:Transcription Factors; D025521:Tumor Suppressor Proteins