Orstad, Grace, Fort, Gabriela, Parnell, Timothy J, Jones, Alex, Stubben, Chris, Lohman, Brian, Gillis, Katherine L, Orellana, Walter, Tariq, Rushmeen, Klingbeil, Olaf, Kaestner, Klaus, Vakoc, Christopher R, Spike, Benjamin T, Snyder, Eric L (July 2022) FoxA1 and FoxA2 control growth and cellular identity in NKX2-1-positive lung adenocarcinoma. Developmental Cell. ISSN 1534-5807
Abstract
Changes in cellular identity (also known as histologic transformation or lineage plasticity) can drive malignant progression and resistance to therapy in many cancers, including lung adenocarcinoma (LUAD). The lineage-specifying transcription factors FoxA1 and FoxA2 (FoxA1/2) control identity in NKX2-1/TTF1-negative LUAD. However, their role in NKX2-1-positive LUAD has not been systematically investigated. We find that Foxa1/2 knockout severely impairs tumorigenesis in KRAS-driven genetically engineered mouse models and human cell lines. Loss of FoxA1/2 leads to the collapse of a dual-identity state, marked by co-expression of pulmonary and gastrointestinal transcriptional programs, which has been implicated in LUAD progression. Mechanistically, FoxA1/2 loss leads to aberrant NKX2-1 activity and genomic localization, which in turn actively inhibits tumorigenesis and drives alternative cellular identity programs that are associated with non-proliferative states. This work demonstrates that FoxA1/2 expression is a lineage-specific vulnerability in NKX2-1-positive LUAD and identifies mechanisms of response and resistance to targeting FoxA1/2 in this disease.
| Item Type: | Paper |
|---|---|
| Subjects: | diseases & disorders > cancer diseases & disorders diseases & disorders > neoplasms organism description > animal diseases & disorders > cancer > cancer types > lung cancer organism description > animal > mammal organism description > animal > mammal > rodent > mouse organism description > animal > mammal > rodent diseases & disorders > cancer > cancer types |
| CSHL Authors: | |
| Communities: | CSHL labs > Vakoc lab CSHL Cancer Center Program CSHL Cancer Center Program > Cancer Genetics and Genomics Program |
| SWORD Depositor: | CSHL Elements |
| Depositing User: | CSHL Elements |
| Date: | 5 July 2022 |
| Date Deposited: | 27 Jul 2022 04:23 |
| Last Modified: | 09 Feb 2024 20:14 |
| PMCID: | PMC9378547 |
| URI: | https://repository.cshl.edu/id/eprint/40679 |
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