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.
journal_name
Cell Repjournal_title
Cell reportsauthors
Campbell JD,Yau C,Bowlby R,Liu Y,Brennan K,Fan H,Taylor AM,Wang C,Walter V,Akbani R,Byers LA,Creighton CJ,Coarfa C,Shih J,Cherniack AD,Gevaert O,Prunello M,Shen H,Anur P,Chen J,Cheng H,Hayes DN,Bullman S,Peddoi
10.1016/j.celrep.2018.03.063subject
Has Abstractpub_date
2018-04-03 00:00:00pages
194-212.e6issue
1issn
2211-1247pii
S2211-1247(18)30424-8journal_volume
23pub_type
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