title: [Expression of RASSF1A mRNA and its relationship with HPV-16 in cervical cancer].
abstract: OBJECTIVE
  To study the expression of RASSF1A mRNA and its relationship with HPV-16 in cervical cancer.
  
  
  METHODS
  Reverse transcription polymerase chain reaction (RT-PCR) was used to detect the expression of RASSF1A mRNA in 56 patients with cervical cancer, 36 patients with CIN and 20 patients with normal cervix. HPV-16 DNA was also examined by PCR in 56 patients with cervical cancer.
  
  
  RESULTS
  The rates of loss of RASSF1A mRNA expression were 0% (0/20), 22.2% (8/36) and 50.0% (28/56) in patients with normal cervix, CIN and cervical cancer respectively. The loss rate of RASSF1A mRNA in the cervical tissues at the advanced stages (stages III-IV, 82.4%) was higher than that at the early stages (stages I-II, 35.9%, P < 0.05). RASSF1A mRNA deletion occurred more often in the tissues of squamous cervical cancers (63.3%) than in those of adenocarcinoma (34.6%) (P < 0.05). The loss rate of the poor differentiation group was 70.8%, significantly higher than that of the middle and high differentiation group (37.5%, P < 0.05). The loss of RASSF1A was negatively related with HPV-16 infection in cervical cancers, especially in adenocarcinoma (P < 0.905).
  
  
  CONCLUSIONS
  Loss of RASSF1A may play an important role in tumorgenesis and development of cervical cancer.
authors.affiliation: Department of Gynecology and Obstetrics, Second Affiliated Hospital of China Medical University, Shenyang 110003, China.
authors.forename: Shu-lan
authors.initials: SL
authors.lastname: Zhang
authors.forename: Na
authors.initials: N
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Ma
authors.forename: Tao
authors.initials: T
authors.lastname: Jiang
mesh_terms: D000230:Adenocarcinoma / Q000378:metabolism / Q000473:pathology / Q000821:virology; D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000096:biosynthesis*; D002294:Carcinoma, Squamous Cell / Q000378:metabolism / Q000473:pathology / Q000821:virology; D005260:Female; D052162:Human papillomavirus 16 / Q000302:isolation & purification; D006801:Humans; D008875:Middle Aged; D030361:Papillomavirus Infections / Q000378:metabolism*; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D014407:Tumor Cells, Cultured; D025521:Tumor Suppressor Proteins / Q000096:biosynthesis* / Q000235:genetics; D002583:Uterine Cervical Neoplasms / Q000378:metabolism* / Q000473:pathology / Q000821:virology; D002578:Uterine Cervical Dysplasia / Q000378:metabolism / Q000473:pathology / Q000821:virology
chemical_list: D014408:Biomarkers, Tumor; C411762:RASSF1 protein, human; D012333:RNA, Messenger; D025521:Tumor Suppressor Proteins