Identification of potential ABBV-075 responsive markers in mouse skin
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE89934 | GEO | 2017/03/07
SECONDARY ACCESSION(S): PRJNA354292
REPOSITORIES: GEO
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Project description:To identify genes that are modulated by BET inhibitors in blood, we determined global gene expression changes in ABBV-075-treated human PBMC samples
2017-03-07 | GSE89933 | GEO
Project description:To identify genes that are modulated by BET inhibitors in blood, we determined global gene expression changes in ABBV-075-treated mouse whole blood samples
2017-03-07 | GSE89935 | GEO
Project description:Competitive inhibitors of acetyl-lysine binding to the bromodomains of the BET (bromodomain and extra terminal) family are being developed for the treatment of solid and heme malignancies. BET family member BRD4 function at enhancers/super-enhancers has been shown to sustain signal-dependent or pathogenic gene expression programs. Here we tested the hypothesis that the transcription factor drivers of castration-resistant prostate cancer (CRPC) clinical progression, including the Androgen Receptor (AR), are critically dependent on BRD4 and thus represent a sensitive solid tumor indication for the BET inhibitor ABBV-075. DHT-stimulated transcription of AR target genes was inhibited by ABBV-075 without significant effect on AR protein expression. Further, ABBV-075 disrupted DHT-stimulated recruitment of BET family member BRD4 to gene regulatory regions co-occupied by AR, including the well-established PSA and TMPRSS2 enhancers. Persistent BET inhibition disrupted the composition and function of AR occupied enhancers as measured by a reduction in AR and H3K27Ac ChIP signal and inhibition of eRNA transcription. ABBV-075 displayed potent anti-proliferative activity in multiple models of resistance to second generation anti-androgens and inhibited the activity of AR-V7 and the AR LBD gain-of-function mutations, F877L and L702H. ABBV-075 was also a potent inhibitor of MYC and the TMPRSS2-ETS fusion protein, important parallel transcription factor drivers of CRPC.
2017-02-21 | GSE86245 | GEO
Project description:We comprehensively analyzed the differentially expressed mRNAs (DEmRNAs) and lncRNAs (DElncRNAs) underlying the antitumor functions of BET inhibitors of human HCC cells using RNA sequencing (RNA-Seq). The pan-BET inhibitor ABBV-075 and BD2 specific inhibitor ABBV-744 attenuates the IFNγ-induced inflammatory response. In addition, BD2 inhibitors were predominantly effective in inflammatory response.
2022-05-04 | GSE189376 | GEO
Project description:Identification of potential ABBV-075 responsive markers in mouse skin
| PRJNA354292 | ENA
Project description:We tested if Brd2 inhibitor ABBV-744 could reduce SARS-CoV-2 infection in Syrian Hamsters. Three days post-infection, the lungs of hamsters were harvested and subjected to RNA-seq. Infected, but untreated, hamsters showed marked up-regulation of a number of genes including ISGs when compared to uninfected controls. In contrast, hamsters treated with ABBV-744 showed a down-regulation of ISG levels, confirming ABBV-744 activity. Thus, Brd2 inhibition can decrease SARS-CoV-2 infection in Syrian Hamsters.
2021-09-02 | GSE182994 | GEO
Project description:Dual bromodomain BET inhibitors (DbBi) that bind with similar affinities to the first and second bromodomains across BRD2, BRD3, BRD4 and BRDt only displayed modest activity as monotherapy in clinical trials. Thrombocytopenia, closely followed by symptoms characteristic of GI toxicity, have presented as dose limiting adverse events that may prevented escalation to higher dose levels for more robust efficacy. ABBV-744 is a highly selective inhibitor for the second bromodomain (BD2) of the four BET family proteins. In contrast to the broad antiproliferative activities observed with DbBi, ABBV-744 displayed significant antiproliferative activities largely but not exclusively in cancer cell lines derived from AML and androgen receptor (AR) positive prostate cancer. Studies in AML xenograft models demonstrated anti-tumor efficacy for ABBV-744 that was comparable to the pan-BET inhibitor ABBV-075 but with improved tolerability. Enhanced anti-tumor efficacy was also observed with the combination of ABBV-744 and the Bcl-2 inhibitor, venetoclax (ABT-199) compared to monotherapies of either agent alone. These results collectively support the clinical evaluation of ABBV-744 in AML (Clinical Trials.gov identifier: NCT03360006).
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Project description:Identification of potential ABBV-075 responsive markers in human PBMCs
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Project description:Glucocorticoids are key component of the immuno-chemotherapy regimens (e.g., R-CHOP, EPOCH-R, Hyper-CVAD) for the treatment of B-cell non-Hodgkin lymphoma (NHL). However, prolonged systemic glucocorticoid treatment is associated with several adverse events. ABBV-319 is a CD19-targeting antibody-drug conjugate (ADC) engineered to reduce glucocorticoid-associated toxicity while possessing three distinct mechanisms of action (MOA) to increase therapeutic efficacy: (1) antibody-mediated delivery of glucocorticoid receptor modulator (GRM) payload to activate apoptosis, (2) inhibition of CD19 signaling, and (3) enhanced Fc-mediated effector function via afucosylation of the antibody backbone. ABBV-319 elicited potent GRM-driven anti-tumor activity against multiple B-cell NHL cell lines in vitro as well as in cell line-derived xenografts (CDXs) and patient-derived xenografts (PDXs) in vivo. Remarkably, a single-dose of ABBV-319 induced sustained tumor regression and enhanced anti-tumor activity compared to repeat dosing of systemic prednisolone at the maximum tolerated dose (MTD) in mice. The unconjugated CD19 monoclonal antibody (mAb) also displayed anti-proliferative activity on a subset of B-cell lymphoma cell lines through the inhibition of PI3K signaling. Moreover, afucosylation of the CD19 mAb enhanced Fc-mediated antibody-dependent cellular cytotoxicity (ADCC), and this activity was maintained after conjugation with GRM payloads. Notably, ABBV-319 displayed superior efficacy compared to afucosylated CD19 mAb in human CD34+ PBMC-engrafted NSG-Tg(Hu-IL15) transgenic mice, demonstrating enhanced anti-tumor activity when different MOAs are combined. ABBV-319 also showed durable anti-tumor activity across multiple preclinical B-cell lymphoma models, including non-germinal center B-cell (GCB) DLBCL and relapsed lymphoma after R-CHOP treatment. Collectively, these data support the ongoing testing of ABBV-319 in Phase I clinical trial (NCT05512390)
2023-12-15 | GSE249023 | GEO
Project description:Glucocorticoids are key component of the immuno-chemotherapy regimens (e.g., R-CHOP, EPOCH-R, Hyper-CVAD) for the treatment of B-cell non-Hodgkin lymphoma (NHL). However, prolonged systemic glucocorticoid treatment is associated with several adverse events. ABBV-319 is a CD19-targeting antibody-drug conjugate (ADC) engineered to reduce glucocorticoid-associated toxicity while possessing three distinct mechanisms of action (MOA) to increase therapeutic efficacy: (1) antibody-mediated delivery of glucocorticoid receptor modulator (GRM) payload to activate apoptosis, (2) inhibition of CD19 signaling, and (3) enhanced Fc-mediated effector function via afucosylation of the antibody backbone. ABBV-319 elicited potent GRM-driven anti-tumor activity against multiple B-cell NHL cell lines in vitro as well as in cell line-derived xenografts (CDXs) and patient-derived xenografts (PDXs) in vivo. Remarkably, a single-dose of ABBV-319 induced sustained tumor regression and enhanced anti-tumor activity compared to repeat dosing of systemic prednisolone at the maximum tolerated dose (MTD) in mice. The unconjugated CD19 monoclonal antibody (mAb) also displayed anti-proliferative activity on a subset of B-cell lymphoma cell lines through the inhibition of PI3K signaling. Moreover, afucosylation of the CD19 mAb enhanced Fc-mediated antibody-dependent cellular cytotoxicity (ADCC), and this activity was maintained after conjugation with GRM payloads. Notably, ABBV-319 displayed superior efficacy compared to afucosylated CD19 mAb in human CD34+ PBMC-engrafted NSG-Tg(Hu-IL15) transgenic mice, demonstrating enhanced anti-tumor activity when different MOAs are combined. ABBV-319 also showed durable anti-tumor activity across multiple preclinical B-cell lymphoma models, including non-germinal center B-cell (GCB) DLBCL and relapsed lymphoma after R-CHOP treatment. Collectively, these data support the ongoing testing of ABBV-319 in Phase I clinical trial (NCT05512390)
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