| Literature DB >> 31031003 |
Suhas Vasaikar1, Chen Huang1, Xiaojing Wang1, Vladislav A Petyuk2, Sara R Savage3, Bo Wen1, Yongchao Dou1, Yun Zhang4, Zhiao Shi1, Osama A Arshad2, Marina A Gritsenko2, Lisa J Zimmerman5, Jason E McDermott2, Therese R Clauss2, Ronald J Moore2, Rui Zhao2, Matthew E Monroe2, Yi-Ting Wang2, Matthew C Chambers5, Robbert J C Slebos5, Ken S Lau6, Qianxing Mo7, Li Ding8, Matthew Ellis9, Mathangi Thiagarajan10, Christopher R Kinsinger11, Henry Rodriguez11, Richard D Smith2, Karin D Rodland12, Daniel C Liebler13, Tao Liu14, Bing Zhang15.
Abstract
We performed the first proteogenomic study on a prospectively collected colon cancer cohort. Comparative proteomic and phosphoproteomic analysis of paired tumor and normal adjacent tissues produced a catalog of colon cancer-associated proteins and phosphosites, including known and putative new biomarkers, drug targets, and cancer/testis antigens. Proteogenomic integration not only prioritized genomically inferred targets, such as copy-number drivers and mutation-derived neoantigens, but also yielded novel findings. Phosphoproteomics data associated Rb phosphorylation with increased proliferation and decreased apoptosis in colon cancer, which explains why this classical tumor suppressor is amplified in colon tumors and suggests a rationale for targeting Rb phosphorylation in colon cancer. Proteomics identified an association between decreased CD8 T cell infiltration and increased glycolysis in microsatellite instability-high (MSI-H) tumors, suggesting glycolysis as a potential target to overcome the resistance of MSI-H tumors to immune checkpoint blockade. Proteogenomics presents new avenues for biological discoveries and therapeutic development.Entities:
Keywords: RB1; SOX9; biomarkers; colon cancer; drug targets; glycolysis; immune evasion; proteogenomics; proteomics; tumor antigen
Mesh:
Substances:
Year: 2019 PMID: 31031003 PMCID: PMC6768830 DOI: 10.1016/j.cell.2019.03.030
Source DB: PubMed Journal: Cell ISSN: 0092-8674 Impact factor: 41.582