期刊
CELL SYSTEMS
卷 8, 期 2, 页码 136-+出版社
CELL PRESS
DOI: 10.1016/j.cels.2019.01.004
关键词
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资金
- Yale SBI/Genetics Startup Fund, NIH/NCI [1DP2CA238295-01, 1R01CA231112-01, 1U54CA209992-8697, 5P50CA196530-A10805, 4P50CA121974-A08306]
- Damon Runyon Dale Frey Award [DFS-13-15]
- Melanoma Research Alliance [412806, 16-003524]
- St-Baldrick's Foundation [426685]
- Breast Cancer Alliance
- Cancer Research Institute (CLIP)
- AACR [499395, 17-20-01-CHEN]
- Mary Kay Foundation [017-81]
- The V Foundation [V2017-022]
- Ludwig Family Foundation
- DoD [W81XWH-17-1-0235]
- Sontag Foundation
- Chenevert Family Foundation
- Yale SPORE in lung cancer [5P50CA196530]
- Yale Ph.D. training grant from NIH [T32GM007499]
- Yale MSTP training grant from NIH [T32GM007205]
- NIH/NCI [1U54CA209992]
- Cancer Research Institute Irvington Postdoctoral Fellowship
- Cancer Research Institute RJ Anderson Postdoctoral Fellowship
- USTC student scholarships
The genetic makeup of cancer cells directs oncogenesis and influences the tumor microenvironment. In this study, we massively profiled genes that functionally drive tumorigenesis using genome-scale in vivo CRISPR screens in hosts with different levels of immunocompetence. As a convergent hit from these screens, Prkar1a mutant cells are able to robustly outgrow as tumors in fully immunocompetent hosts. Functional interrogation showed that Prkar1a loss greatly altered the transcriptome and proteome involved in inflammatory and immune responses as well as extracellular protein production. Single-cell transcriptomic profiling and flow cytometry analysis mapped the tumor microenvironment of Prkar1a mutant tumors and revealed the transcriptomic alterations in host myeloid cells. Taken together, our data suggest that tumor-intrinsic mutations in Prkar1a lead to drastic alterations in the genetic program of cancer cells, thereby remodeling the tumor microenvironment.
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