title: Elevated expression of maspin mRNA as a predictor of survival in stage II and III gallbladder cancer cases.
abstract: BACKGROUND
  Maspin expression is a potential prognostic factor for various malignancies but its relation with gallbladder cancer is unknown and needs to be investigated needs to be investigated. We therefore here focused on maspin mRNA expression in normal, gall stone disease and gallbladder cancer subjects, with particular attention to prognostic importance in individuals with malignancies.
  
  
  METHODS
  This study was carried out at the Department of Surgical Gastroenterology, King George's Medical University, Lucknow, India. Gallbladder samples from normal (n=25), gall stone disease (n=25) and cancer patients (n=38) were analysed for maspin mRNA expression by semi-quantitative reverse transcriptase PCR and quantitative real time PCR. Statistical analysis was carried out using the Students t test or ANOVA. Survival analysis was conducted according to the Kaplan-Meier method and correlations were assessed using the Pearson correlation method. p<0.05 was considered statistically significant.
  
  
  RESULTS
  Significant increase (p=0.028) in expression of maspin mRNA was observed in gallbladder cancer as compared to gall stone disease, whereas no expression was found in normal tissues. Significant correlation (Pearson's coefficient(r)=-0.798, p<0.0001) was observed between relative quantification of maspin mRNA and survival of cancer patients after surgery, with significantly shorter (p=0.002) survival in patients having relative quantification >1.5 as compared to those having relative quantification <1.5. Similarly, significant differences in patient survival for maspin mRNA expression was observed for stage II (p=0.025) and III (p=0.011) cancer.
  
  
  CONCLUSIONS
  Higher expression of maspin mRNA in gallbladder cancer has prognostic significance for stage II and III cancer, which needs to be investigated further.
authors: Department of Surgical Gastroenterology, King George's Medical University, Lucknow, India E-mail : kavita.baghel08@gmail.com.
authors: Kavita
authors: K
authors: Baghel
authors: Hasan Raza
authors: HR
authors: Kazmi
authors: Saloni
authors: S
authors: Raj
authors: Abhijit
authors: A
authors: Chandra
authors: Rajeshwar Nath
authors: RN
authors: Srivastava
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005704:Gallbladder / Q000378:metabolism; D005706:Gallbladder Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000401:mortality / Q000473:pathology / Q000601:surgery; D042882:Gallstones / Q000235:genetics / Q000378:metabolism; D015870:Gene Expression; D006801:Humans; D007194:India; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D012333:RNA, Messenger / Q000378:metabolism*; D015843:Serpins / Q000235:genetics*; D015996:Survival Rate; D055815:Young Adult
chemical_list: D012333:RNA, Messenger; C085344:SERPIN-B5; D015843:Serpins