The application belongs to the technical field of biological
pharmacy, and provides a set of
esophageal cancer methylation early screening markers and application thereof, the markers being any one or a combination of two or more of ZNF693, MMP14, JAG1, RUNX1 or NOTCH1
gene sequences or
gene fragments containing at least one CpG
methylation site; the application also discloses application of the set of biomarkers in preparation of a detection kit for diagnosing and / or evaluating the
methylation degree of
esophageal cancer or in screening of drugs for treating and / or relieving
esophageal cancer. The application can effectively identify
cancer patients by quantifying the dynamic change of the methylation level, and reduce the risk of missed detection caused by
tumor heterogeneity; by establishing a high-
throughput and standardized detection process, the application can provide a precise
molecular typing tool for early intervention of esophageal
cancer; the application overcomes the limitations of traditional technology, such as insufficient detection sensitivity for
early cancer and dependence on invasive operation, and can promote clinical transformation of "early screening and early diagnosis".