Frontiers in Genetics (Sep 2022)

Leader gene identification for digestive system cancers based on human subcellular location and cancer-related characteristics in protein–protein interaction networks

  • Hongwei Chen,
  • Zherou Rong,
  • Luanfeng Ge,
  • Hongzheng Yu,
  • Chao Li,
  • Manyi Xu,
  • Zihan Zhang,
  • Junjie Lv,
  • Yuehan He,
  • Wan Li,
  • Lina Chen

DOI
https://doi.org/10.3389/fgene.2022.919210
Journal volume & issue
Vol. 13

Abstract

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Stomach, liver, and colon cancers are the most common digestive system cancers leading to mortality. Cancer leader genes were identified in the current study as the genes that contribute to tumor initiation and could shed light on the molecular mechanisms in tumorigenesis. An integrated procedure was proposed to identify cancer leader genes based on subcellular location information and cancer-related characteristics considering the effects of nodes on their neighbors in human protein–protein interaction networks. A total of 69, 43, and 64 leader genes were identified for stomach, liver, and colon cancers, respectively. Furthermore, literature reviews and experimental data including protein expression levels and independent datasets from other databases all verified their association with corresponding cancer types. These final leader genes were expected to be used as diagnostic biomarkers and targets for new treatment strategies. The procedure for identifying cancer leader genes could be expanded to open up a window into the mechanisms, early diagnosis, and treatment of other cancer types.

Keywords