DNA methylation profiling of gastric cancer and precursor lesions

Genome-scale DNA methylation profiling using the Infinium DNA methylation 450K BeadChip platform and samples from gastric cancer (intestinal and diffuse), precursor lesions (multifocal chronic atrophic gastritis and inestina metaplasia), non-atrophic gastritis and normal gastric mucosa. DNA methylation analysis of gastric biopsies from patient suffering gastric cancer (intestinal and diffuse subtypes) and paierd normal adyacent tissues, precursor lesions and normal mucosa using the Infinium DNA 450 methylation BeadChip platform