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Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [H3K9Ac ChIP-seq]

ABSTRACT: Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [H3K9Ac ChIP-seq]

PROVIDER: PRJNA1164769 | ENA |

REPOSITORIES: ENA

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Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [H3K9Ac ChIP-seq]

Project description:Histone Deacetylase 3 (HDAC3) function in vivo is nuanced and directed in a tissue specific fashion. The importance of HDAC3 in Kras mutant lung tumors has recently been identified, but HDAC3 function in this context remains to be fully elucidated. Here, we identified HDAC3 as a lung tumor cell-intrinsic transcriptional regulator of the tumor immune microenvironment. In Kras mutant lung cancer cells, we found that HDAC3 is a direct transcriptional repressor of a cassette of secreted chemokines, including Cxcl10. Genetic and pharmacological inhibition of HDAC3 robustly upregulated this gene set in human and mouse Kras, LKB1 (KL) and Kras, p53 (KP) mutant lung cancer cells through an NF-kB/p65-dependent mechanism. Using genetic engineered mouse models, we found that HDAC3 inactivation in vivo induced expression of this gene set selectively in lung tumors, and resulted in enhanced T-cell recruitment at least in part via Cxcl10. Furthermore, we found that inhibition of HDAC3 in the presence of Kras pathway inhibitors dissociated Cxcl10 expression from that of immunosuppressive chemokines, and that combination treatment of entinostat with trametinib enhanced T-cell recruitment into lung tumors in vivo. Finally, we showed that T-cells contribute to in vivo tumor growth control in the presence of entinostat and trametinib combination treatment. Together, our findings reveal that HDAC3 is a druggable endogenous repressor of T-cell recruitment into Kras mutant lung tumors.

2024-10-10 | GSE277927 | GEO

Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [KL GEMM Treated Primary Tumors RNA-seq]

2024-10-10 | GSE277929 | GEO

Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [KL LJE1 cells p65 KO RNA-seq]

2024-10-10 | GSE277928 | GEO

Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [KL GEMM Treated Primary Tumors RNA-seq]

Project description:Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [KL GEMM Treated Primary Tumors RNA-seq]

| PRJNA1164765 | ENA

Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [KL LJE1 cells p65 KO RNA-seq]

Project description:Transcriptional repression by HDAC3 mediates T cell exclusion from Kras mutant lung tumors [KL LJE1 cells p65 KO RNA-seq]

| PRJNA1164771 | ENA

Genome-wide acetylated histone 3 lysine 9 (H3K9ac) in HDAC3-depleted liver rescued with deacectylase-dead HDAC3 mutants

Project description:We found that several deacetylase-dead HDAC3 mutants were able to rescue the metabolic phenotype of HDAC3-depleted livers. Here we profile the histone acetylation in the presence of different HDAC3 mutants in mouse liver. Deacetylase-dead HDAC3 mutants, including HAHA, KA, YF and HEBI, were introduced into HDAC3-depleted (Cre) mouse livers by virus along with wild-type (WT) HDAC3 as a control. Livers were harvested at 5 pm (ZT 10) and subjected to ChIP with anti-H3K9ac antibodies followed by deep sequencing.

2013-11-25 | E-GEOD-49365 | biostudies-arrayexpress

HDAC3 is critical in tumor development and therapeutic resistance in Kras-mutant non-small cell lung cancer [RNA-seq HDAC3 KO p65 KO]

Project description:HDAC3 is one of the main targets of Histone Deacetylase (HDAC) inhibitors in clinical development as cancer therapies, yet the in vivo role of HDAC3 in solid tumors is unknown. Here, we identified a critical role for HDAC3 in KRAS mutant lung cancer. Using genetic engineered mouse models (GEMM), we found that HDAC3 is required for lung tumor growth in vivo. HDAC3 was found to direct and enhance the transcription effects of the lung cancer lineage transcription factor NKX2-1 to mediate expression of a common set of target genes. We identified FGFR1 as a critical new target of HDAC3. Leveraging this, we identified that an HDAC3-dependent transcriptional cassette becomes hyperactivated as KRAS/LKB1 mutant cells develop resistance to the MEK inhibitor trametinib, and this can be reversed by treatment with the HDAC1/HDAC3 inhibitor entinostat. We found that the combination of entinostat plus trametinib treatment elicits therapeutic benefit in the KRAS/LKB1 GEMM.

2023-07-14 | GSE164756 | GEO

HDAC3 is critical in tumor development and therapeutic resistance in Kras-mutant non-small cell lung cancer [RNA-seq HDAC3 KO NKX2-1 KO]

2023-07-14 | GSE164755 | GEO

ChIP-seq to investigate H3K9ac regulation by HDAC3 in trigeminal ganglion of SD rat trigeminal neuralgia model

Project description:The epigenetic roles in trigeminal neuralgia (TN) still remain unclear. H3K9ac alteration in neuralgia is obscure and controversy. In this study, we established TN rat model via chronic compression, and further treated with 100 mg/kg/d carbamazepine (CBZ). ChIP-seq were conducted to investigate the genome-wide distribution of H3K9ac and HDAC3 in control, TN and TN+CBZ.

2021-08-02 | E-MTAB-10793 | biostudies-arrayexpress

Diurnal changes of HDAC3, Rev-erbα, NCoR and Pol II recruitment to the mouse liver genome and of H3K9Ac

Project description:We reported a diurnal changes in the recruitment of HDAC3, Rev-erbα, NCoR and Pol II to the mouse liver genome as well as H3K9 acetylation in vivo at ZT10 and ZT22. ChIP-Seq profiling of HDAC3, Rev-erbα, NCoR and Pol II binding and H3K9Ac in mouse liver harvested at 2 different times (ZT10 and ZT22) of the day

2011-03-11 | E-GEOD-26345 | biostudies-arrayexpress

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