Genomic, Pathway Network, and Immunologic Features Distinguishing Squamous Carcinomas.

Academic Article

Abstract

  • This integrated, multiplatform PanCancer Atlas study co-mapped and identified distinguishing molecular features of squamous cell carcinomas (SCCs) from five sites associated with smoking and/or human papillomavirus (HPV). SCCs harbor 3q, 5p, and other recurrent chromosomal copy-number alterations (CNAs), DNA mutations, and/or aberrant methylation of genes and microRNAs, which are correlated with the expression of multi-gene programs linked to squamous cell stemness, epithelial-to-mesenchymal differentiation, growth, genomic integrity, oxidative damage, death, and inflammation. Low-CNA SCCs tended to be HPV(+) and display hypermethylation with repression of TET1 demethylase and FANCF, previously linked to predisposition to SCC, or harbor mutations affecting CASP8, RAS-MAPK pathways, chromatin modifiers, and immunoregulatory molecules. We uncovered hypomethylation of the alternative promoter that drives expression of the ΔNp63 oncogene and embedded miR944. Co-expression of immune checkpoint, T-regulatory, and Myeloid suppressor cells signatures may explain reduced efficacy of immune therapy. These findings support possibilities for molecular classification and therapeutic approaches.
  • Published In

  • Cell Reports  Journal
  • Keywords

  • bladder carcinoma with squamous differentiation, cervical squamous cell carcinoma, esophageal squamous cell carcinoma, genomics, head and neck squamous cell carcinoma, human papillomavirus, lung squamous cell carcinoma, proteomics, transcriptomics
  • Digital Object Identifier (doi)

    Author List

  • Campbell JD; Yau C; Bowlby R; Liu Y; Brennan K; Fan H; Taylor AM; Wang C; Walter V; Akbani R
  • Start Page

  • 194
  • End Page

  • 212.e6
  • Volume

  • 23
  • Issue

  • 1