title: Germ-line alterations in MSR1 gene and prostate cancer risk.
abstract: OBJECTIVE
  The MSR1 gene maps to 8p22-23, a novel susceptibility locus for hereditary prostate cancer (HPC). Mutations in MSR1 have been reported to associate with prostate cancer (PRCA) risk. Here we report a follow-up study from Finland to evaluate the association between PRCA and MSR1 gene.
  
  
  METHODS
  The youngest affected patient from each of 120 HPC families was initially used for the screening of MSR1 mutations by single-strand conformational polymorphism analysis. Selected variants of MSR1 gene were then screened in 537 unselected PRCA cases and in 480 controls.
  
  
  RESULTS
  Among 120 HPC families, five MSR1 sequence variants were identified. The carrier frequencies of the R293X, P275A, and -14743A>G variants were compared between the probands with HPC, unselected PRCA cases, and healthy male blood donors. No significant differences were observed. The odds ratios for R293X, P275A, and -14743A>G mutations were also calculated to estimate the PRCA risk. No significantly elevated or lowered risks for PRCA among these three variants were detected. However, the mean age at diagnosis of the R293X mutation carriers among HPC probands was significantly lower compared with noncarriers (55.4 versus 65.4 years; t test, P = 0.04). The same trend was observed among unselected PRCA cases (65.7 versus 68.7 years; t test, P = 0.37).
  
  
  CONCLUSIONS
  Our results do not support a major role for the MSR1 gene in the causation of hereditary or unselected PRCAs but suggest a possible modifying role in cancer predisposition.
authors: Laboratory of Cancer Genetics, Institute of Medical Technology, University of Tampere, Finland. eija.seppala@uta.fi
authors: Eija H
authors: EH
authors: Seppälä
authors: Tarja
authors: T
authors: Ikonen
authors: Ville
authors: V
authors: Autio
authors: Annika
authors: A
authors: Rökman
authors: Nina
authors: N
authors: Mononen
authors: Mika P
authors: MP
authors: Matikainen
authors: Teuvo L J
authors: TL
authors: Tammela
authors: Johanna
authors: J
authors: Schleutker
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D002898:Chromosomes, Human, Pair 8 / Q000235:genetics; D015331:Cohort Studies; D005190:Family; D005387:Finland / Q000453:epidemiology; D018095:Germ-Line Mutation / Q000235:genetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D018807:Polymorphism, Single-Stranded Conformational; D011471:Prostatic Neoplasms / Q000235:genetics*; D011971:Receptors, Immunologic / Q000235:genetics*; D051116:Receptors, Scavenger; D012307:Risk Factors; D051117:Scavenger Receptors, Class A
chemical_list: C495139:MSR1 protein, human; D011971:Receptors, Immunologic; D051116:Receptors, Scavenger; D051117:Scavenger Receptors, Class A