The histone modifier KAT2A presents a selective target in a subset of well-differentiated microsatellite-stable colorectal cancers
Lysine acetyltransferase 2 A (KAT2A) plays a pivotal role in epigenetic gene regulation across various types of cancer. In colorectal cancer (CRC), increased KAT2A expression is associated with a more aggressive phenotype. Our study aims to elucidate the molecular underpinnings of KAT2A dependency i...
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| Hauptverfasser: | , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2025
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| In: |
Cell death and differentiation
Year: 2025, Jahrgang: 32, Heft: 7, Pages: 1259-1272 |
| ISSN: | 1476-5403 |
| DOI: | 10.1038/s41418-025-01479-7 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s41418-025-01479-7 Verlag, kostenfrei, Volltext: https://www.nature.com/articles/s41418-025-01479-7 
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| Verfasserangaben: | Vida Kufrin, Annika Seiler, Silke Brilloff, Helen Rothfuß, Sandra Küchler, Silvia Schäfer, Elahe Rahimian, Jonas Baumgarten, Li Ding, Frank Buchholz, Claudia R. Ball, Martin Bornhäuser, Hanno Glimm, Marius Bill and Alexander A. Wurm |
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| 245 | 1 | 4 | |a The histone modifier KAT2A presents a selective target in a subset of well-differentiated microsatellite-stable colorectal cancers |c Vida Kufrin, Annika Seiler, Silke Brilloff, Helen Rothfuß, Sandra Küchler, Silvia Schäfer, Elahe Rahimian, Jonas Baumgarten, Li Ding, Frank Buchholz, Claudia R. Ball, Martin Bornhäuser, Hanno Glimm, Marius Bill and Alexander A. Wurm |
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| 520 | |a Lysine acetyltransferase 2 A (KAT2A) plays a pivotal role in epigenetic gene regulation across various types of cancer. In colorectal cancer (CRC), increased KAT2A expression is associated with a more aggressive phenotype. Our study aims to elucidate the molecular underpinnings of KAT2A dependency in CRC and assess the consequences of KAT2A depletion. We conducted a comprehensive analysis by integrating CRISPR-Cas9 screening data with genomics, transcriptomics, and global acetylation patterns in CRC cell lines to pinpoint molecular markers indicative of KAT2A dependency. Additionally, we characterized the phenotypic effect of a CRISPR-interference-mediated KAT2A knockdown in CRC cell lines and patient-derived 3D spheroid cultures. Moreover, we assessed the effect of KAT2A depletion within a patient-derived xenograft mouse model in vivo. Our findings reveal that KAT2A dependency is closely associated with microsatellite stability, lower mutational burden, and increased molecular differentiation signatures in CRC, independent of the KAT2A expression levels. KAT2A-dependent CRC cells display higher gene expression levels and enriched H3K27ac marks at gene loci linked to enterocytic differentiation. Furthermore, loss of KAT2A leads to decreased cell growth and viability in vitro and in vivo, downregulation of proliferation- and stem cell-associated genes, and induction of differentiation markers. Altogether, our data show that a specific subset of CRCs with a more differentiated phenotype relies on KAT2A. For these CRC cases, KAT2A might represent a promising novel therapeutic target. | ||
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