title: [Inhibition of the expression of p42MAPK in HeLa cell line by RNA interference].
abstract: OBJECTIVE
  To screen for siRNAs that inhibit the expression of p42(MAPK) in HeLa cell line.
  
  
  METHODS
  Three p42(MAPK) siRNAs and one random siRNA were synthesized using Silencer siRNA Construction Kit, and labeled with Cy-3 for measurement of transfection effect. SiRNAs were transfected into HeLa cells by Lipofectamin 2000. The expression of p42(MAPK) was analyzed by Western blot. The biological effect of siRNAs on HeLa cell growth was monitored by MTT and flow cytometry.
  
  
  RESULTS
  Two siRNAs (siRNA-2 and siRNA-3) among three tested were identified to be able to downregulate the p42(MAPK) expression. A concurrent growth retardation of HeLa cell line was observed in comparison with the control.
  
  
  CONCLUSIONS
  Inhibition of p42(MAPK) expression with siRNA technique can inhibit the proliferation of HeLa cells.
authors.affiliation: Key Laboratory of Environment and Gene Related to Diseases, Ministry of Education, Medical School of Xi'an Jiaotong University, Xi'an 710061, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Huang
authors.forename: Li-ying
authors.initials: LY
authors.lastname: Liu
authors.forename: Tu-sheng
authors.initials: TS
authors.lastname: Song
authors.forename: Lei
authors.initials: L
authors.lastname: Ni
authors.forename: Li-ping
authors.initials: LP
authors.lastname: Song
authors.forename: Jing-song
authors.initials: JS
authors.lastname: Hu
authors.forename: Xiao-ge
authors.initials: XG
authors.lastname: Zhao
authors.forename: Lü-sheng
authors.initials: LS
authors.lastname: Si
mesh_terms: D002453:Cell Cycle; D049109:Cell Proliferation; D002470:Cell Survival; D005434:Flow Cytometry; D006367:HeLa Cells; D006801:Humans; D019950:Mitogen-Activated Protein Kinase 1 / Q000096:biosynthesis* / Q000235:genetics; D034622:RNA Interference; D034741:RNA, Small Interfering / Q000235:genetics*; D014162:Transfection
chemical_list: D034741:RNA, Small Interfering; D019950:Mitogen-Activated Protein Kinase 1