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Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer II

ABSTRACT: Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer II

PROVIDER: PRJNA827171 | ENA |

REPOSITORIES: ENA

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Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer

Project description:Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer

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Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer I

Project description:Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer I

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Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer [array]

Project description:Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer [array]

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Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer [ChIP-Seq]

Project description:Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer [ChIP-Seq]

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Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer I

Project description:We examined the pathways that are regulated by TDO2 in APC-deficient cancer cells by analyzing gene expression profiles of APC-WT and APC-KO MC38 cells that are transduced with inducible shTDO2 constructs. This study establishs that the TDO2-Kyn-AhR axis serves a critical role in promoting APC-deficient tumor growth via cancer cell autonomous (metabolism and proliferation) and non-autonomous mechanisms (tumor immunity).

2022-07-13 | GSE200908 | GEO

Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer [array]

2022-07-13 | GSE201415 | GEO

Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer II

Project description:Comparative transcriptomic analysis of TAMs isolated from APC-WT and APC-KO MC38 orthotopic tumors express higher levels of multiple classical M2-like markers (CD163, CCL22, YM1) compared to APC-WT tumors after re-normalized the read counts of multiple M2 macrophage markers with housekeeping gene read counts (GAPDH and ACTB).

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Synthetic Essentiality of Tryptophan 2,3-dioxygenase 2 in APC-Mutated Colorectal Cancer [ChIP-Seq]

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Inhibition of tryptophan 2,3-dioxygenase impairs DNA damage tolerance and repair in glioma cells

Project description:Expression of tryptophan 2,3-dioxygenase (TDO) is a determinant of malignancy in gliomas through kynurenine (KYN) signaling. We report that inhibition of TDO activity attenuated recovery from replication stress and increased the genotoxic effects of bis-chloroethylnitrosourea (BCNU). Activation of the Chk1 arm of the replication stress response (RSR) was reduced when TDO activity was blocked prior to BCNU treatment, whereas phosphorylation of serine 33 (pS33) on replication protein A (RPA) was enhanced - indicative of increased fork collapse. Analysis of quantitative proteomic results revealed TDO-dependent changes in several pathways - including down-regulation of 53BP1 and sirtuin signaling. We went on to show that cells lacking TDO activity exhibited defective recruitment of 53BP1 to gamma-H2AX foci, which corresponded with delayed repair of DNA breaks. Addition of exogenous KYN increased the rate of break repair. TDO inhibition diminished SIRT7 deacetylase recruitment to chromatin, which increased histone H3K18 acetylation - a key mark involved in preventing 53BP1 recruitment to sites of DNA damage. These results highlight the potential for tumor-specific metabolic changes to influence genome stability and may have implications for glioma treatment strategies.

2021-09-09 | PXD022351 | Pride

Indoleamine 2,3-dioxygenase cannot inhibit Chlamydia trachomatis growth in HL-60 human neutrophil granulocytes

Project description:Neutrophil granulocytes are the major cells involved in the Chlamydia trachomatis (C.trachomatis)-mediated inflammation and histopathology. A key gene in human intracellular antichlamydial defense is the tryptophan degrading enzyme indoleamine 2,3-dioxygenase (IDO), which limits the growth of the tryptophan auxotroph Chlamydia. Despite its importance, the role of IDO in the intracellular defense against Chlamydia in neutrophils has not yet been characterized. Affymetrix microarrays were used to obtain global gene expression data for monitoring the effect of C. trachomatis serovar D infection on the transcriptome of human neutrophil granulocytes.

2021-11-08 | GSE180238 | GEO

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