Identification of a new target region by loss of heterozygosity at 5p15.33 in sporadic gastric carcinomas: genotype and phenotype related

Cancer Lett. 2005 Jun 28;224(2):329-37. doi: 10.1016/j.canlet.2004.11.057. Epub 2005 Jan 26.


Chromosome 5p, especially 5p15, involves in several cancers. To investigate its role in gastric cancer, we analyzed 46 intestinal-type and 34 diffuse-type gastric cancers by Loss of heterozygosity (LOH). We found a high frequent LOH at 5p15.33, and identified a minimal 2.7 cM candidate region of tumor suppressor gene, encompassing four loci (D5S417, D5S2849, D5S1492 and D5S2088). In total 80 cases, the highest LOH occurs at D5S2849 (35.19%). In intestinal-type cases, the highest LOH frequency is 50%, whereas in diffuse-type cases, the highest is only 16.67%. By statistical analysis we also observed an obvious genotype-phenotype correlation on 5p15.3 (P<0.01).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Carcinoma / genetics*
  • Chromosomes, Human, Pair 5*
  • Female
  • Genotype
  • Humans
  • Loss of Heterozygosity*
  • Male
  • Microsatellite Repeats
  • Middle Aged
  • Phenotype
  • Polymerase Chain Reaction
  • Stomach Neoplasms / genetics*