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  • Development and preclinical evaluation of a decoy DLL4-encoding oncolytic HSV-1 for solid tumors
    GSE334438Homo sapiens12 个样本2026-10-28

    Preclinical and clinical investigation of oncolytic HSV-1 (oHSV) treatment for cancer has indicated increased Notch signaling in tumors after treatment. Since Notch activation often heralds cancer cell stemness, angiogenesis, and invasion, the induction of this pathway after oHSV virotherapy can support tumor growth and limit response to virotherapy. Here, we evaluated the impact of blocking DLL4, a Notch ligand, on virotherapy. Matched tumor biopsies pre- and post-oHSV (CAN-3110, NCT03152318) treatment revealed an induction of DLL4 post-therapy. We observed that expression of a recombinant soluble decoy DLL4 (sDLL4) could block Notch activation in tumor cells. Thus, we engineered an oHSV vector designed to encode for soluble DLL4 (OVsDLL4) to block DLL4-mediated signaling. RNA sequencing and gene set enrichment analysis revealed that, relative to control oHSV, OVsDLL4 blocked Notch and sprouting angiogenesis pathways after treatment. Despite slower virus replication in vitro, OVsDLL4 cytotoxicity remained effective against tumor cells. Transcriptome profiling also indicated a significant dysregulation of metabolic pathways related to oxidative phosphorylation and glutathione metabolism, in accordance with increased oxygen consumption observed by Seahorse analysis in cells expressing sDLL4. OVsDLL4-treated cells further showed increased reactive oxygen species relative to control oHSV-treated cells. Co-culture of infected tumor cells with macrophages revealed that OVsDLL4 treatment educated macrophage gene expression towards an inflammatory polarization. In vivo, the therapeutic efficacy of OVsDLL4 was underscored after treatment of mice bearing different solid tumors resulted in reduced tumor burden and prolonged survival.

  • A circRNA platform for safe partial reprogramming and rejuvenation of mesenchymal stem cells without pluripotent conversion
    GSE333770Homo sapiens9 个样本2026-10-28

    Mesenchymal stem cells (MSCs) are widely used in cell therapies; however, replicative senescence during in vitro expansion limits their potency and consistency. Partial reprogramming has emerged as a promising strategy to rejuvenate aged cells, yet concerns regarding unintended pluripotent conversion have hindered its translational application. Here we developed a circular RNA (circRNA)-based platform enabling safe partial reprogramming and rejuvenation of MSCs. We generated a lipid nanoparticle (LNP)-delivered circRNA co-expressing OCT4, SOX2, and KLF4 (circ-OSK) to achieve transient and coordinated expression of partial reprogramming factors without genomic modification in MSCs.

  • Molecular mechanism of augmentation of oncogenic activity of MYC by TAF2 in HCC
    GSE329914Homo sapiens6 个样本2026-10-28

    The oncogenes MYC and TAF2 (TATA-box binding protein associated factor 2) are frequently overexpressed and co-amplified in many cancers, including Hepatocellular Carcinoma (HCC). We recently demonstrated that overexpression of TAF2 in mouse liver markedly augments MYC -induced HCC. MYC is a transcription factor. TAF2 is a component of transcription factor IID (TFIID) and functions as a transcription co-factor. We hypothesized that TAF2 modulates gene regulation by MYC, contributing to augmentation of MYC’s oncogenic activity. To test this hypothesis, we generated stable HepG2 cell lines overexpressing TAF2, MYC, or both. Combined overexpression significantly augmented in vitro proliferation, migration and invasion compared to the overexpression of either gene alone. We performed RNA-sequencing and CUT&RUN (cleavage under targets & release using nuclease) to identify MYC-regulated genes that are induced only by TAF2 overexpression. RASGEF1A (RasGEF domain family member 1A), a guanine exchange factor activating Ras, was significantly induced by TAF2 and MYC overexpression. Consequently, the MEK/ERK pathway was robustly activated in cells co-overexpressing TAF2 and MYC, rendering them uniquely sensitive to MEK inhibitor Trametinib. These findings suggest that HCC patients with TAF2 and MYC overexpression might benefit from targeted treatment with MEK inhibitors.

  • Microregional RNA sequencing reveals layer-specific smooth muscle cell heterogeneity in human bicuspid aortic valve-associated aortic dilatation
    GSE329454Homo sapiens60 个样本2026-10-28

    BAV is associated with aortic dilatation that can progress to aneurysm. To detect layer-specific transcriptomic profiles in the human aortic media with BAV, we performed microregional RNA sequencing analysis.

  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [ASO]
    GSE328887Homo sapiens40 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

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  • Gene expression analysis of HepG2 cells overexpressing MYC or TAF2 and MYC
    GSE327282Homo sapiens6 个样本2026-10-28

    Taf2 is a transcription co-factor and a member of TFIID complex. MYC is a transcription factor. Overexpression of TAF2 markedly augments MYC-induced hepatocellular carcinoma (HCC) in mice. It is hypothesized that overexpression of TAF2 might modulate MYC-regulated gene expression and thereby increase oncogenic function of MYC. To test this hypothesis, we generated an in vitro system in which we established stable clones in HepG2 cells overexpressing MYC and both TAF2 and MYC (Hep-MYC and Hep-TAF2-MYC, respectively). The analysis shows that overexpression of TAF2 results in a significant increase in MYC-mediated expression of genes with oncogenic properties.

  • Periplocin Targets Low Density Lipoprotein Receptor-Related Protein 4 and Protects Against Osteoarthritis
    GSE325883Homo sapiens9 个样本2026-10-28

    Osteoarthritis (OA) is recognized as the most common chronic joint disease, characterized primarily by the degeneration of articular cartilage. Periplocin, a cardiotonic steroid isolated from Periploca forrestii, has been proven to be involved in anti-inflammatory responses. However, the role and mechanism of periplocin in OA have not been confirmed.

  • Nanostring transcriptomics profiling of wild type and PIK3CA knockin bladder cancer cells
    GSE323369Homo sapiens6 个样本2026-10-28

    Profiling of metabolic genes using nanostringtargeted transcriptomics to determine oncogenic metabolic rewiring of PIK3CA mutation in bladder cancer cells

  • ACSS2-Mediated Metabolic-Epigenetic Crosstalk Drives Fulvestrant Resistance and Represents a Novel Therapeutic Target
    GSE319879Homo sapiens12 个样本2026-10-28

    Endocrine therapies target hormone-dependent cancer cells, primarily through estrogen receptor alpha (ERα), expressed in ~70% of breast cancers (ER+). Despite treatment advances, 30-40% of ER+ breast cancer patients experience recurrence and metastasis, with 5-year survival rates of only 31.9%. We validated poor outcomes for liver metastasis patients treated with Fulvestrant (Fulv) using the local Carle Foundation Hospital cohort and examined metabolic pathways in liver metastatic patient-derived xenograft (PDX) models, revealing upregulated lipid and acetyl-CoA production. Our previous work demonstrated that combining Fulv with acetyl-CoA synthase inhibitor (ACSI) targeting Acyl-CoA Synthetase Short Chain Family Member 2 (ACSS2), synergistically reduced ER+ metastatic breast cancer (MBC) cell viability in vitro. Using multiple analytical approaches-isotope tracing, CUT&RUN sequencing, immunofluorescence, western blot, and RNA sequencing-we characterized the effects of acetyl-CoA synthesis inhibition on Fulv-induced alterations. Fulv treatment of MBC cells increased ACSS2 expression and acetate utilization. Isotope tracing revealed that Fulv decreased acetate flux to the TCA cycle while promoting fatty acid synthesis. Importantly, ACSS2 was predominantly nuclear and CUT&RUN sequencing showed that Fulv treatment increased ACSS2 chromatin occupancy and ERα/ACSS2/H3K27ac overlapping sites near genes associated with tumor progression, which was eliminated by combination of ACSI and Fulv. RNA sequencing revealed reduction of Fulv-induced expression of genes involved in cancer cell metabolism and key signaling pathways in cancer with the Fulv+ACSI combination. In a therapy-resistant xenograft model, combining Fulv and ACSI reduced Fulv-dependent increase in metastatic burden. Our findings indicate ACSS2 contributes to endocrine therapy resistance through nuclear acetyl-CoA provision for epigenetic alterations. Targeting these cancer cell adaptations represents a novel therapeutic approach potentially reducing metastasis-related mortality and improving breast cancer treatment outcomes.

  • Impact of sacubitrilat-cGMP-PRKG1 signaling on microtubule detyrosination in cardiomyocytes
    GSE317137Homo sapiens8 个样本2026-10-28

    Microtubule detyrosination (dTyr-tub) and re-tyrosination (Tyr-tub) on the C-terminal residue of alpha-tubulin are mediated by the vasohibin (VASH)-small vasohibin-binding protein (SVBP) complex and tubulin tyrosine ligase (TTL), respectively. The level of dTyr-tub is elevated in heart failure (HF), and reducing this modification improves cardiac function, suggesting HF therapies may modulate it. We investigated whether components of the angiotensin receptor–neprilysin inhibitor LCZ696 affect dTyr-tub in human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) and explored the underlying mechanisms. Endothelin-1 (ET1) induced hypertrophy and increased dTyr-tub in wild-type but not in SVBP-deficient hiPSC-CMs and did not further enhance hypertrophy in TTL-deficient hiPSC-CMs. Both sacubitrilat and valsartan blocked ET1-induced hypertrophy, but only sacubitrilat prevented dTyr-tub accumulation. Sacubitrilat modestly stabilised atrial natriuretic peptide in culture medium, increased intracellular guanosine 3',5'-cyclic monophosphate (cGMP), augmented the phosphorylation of vasodilator stimulated phosphoprotein (Ser239), a substrate of cGMP-dependent protein kinase 1 (PRKG1), and lowered dTyr-tub level in hiPSC-CMs. Conversely, PRKG1 inhibition or knockdown increased dTyr-tub level. PRKG1A phosphorylated VASH1-WT but not a phosphomimetic VASH1 (VASH1-7E) in vitro. In addition, VASH1-7E did not interact with microtubules and did induce detyrosination. We overexpressed VASH1-WT, -7E and a dephosphorylated form of VASH1 (VASH1-7A) in newly generated VASH1-deficient hiPSC-CMs. The level of dTyr-tub was lower in VASH1-7E- than in VASH1-WT or VASH1-7A-expressing cells. In conclusion, sacubitrilat reduced dTyr-tub levels via PRKG1 activation and VASH1 phosphorylation, a mechanism that may contribute to the therapeutic benefit of LCZ696 in patients with HF.

  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [endoBID]
    GSE314423Homo sapiens96 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

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  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [incellSHAPEPool1]
    GSE314422Homo sapiens4 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

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  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [invitroSHAPEPool1]
    GSE314421Homo sapiens2 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

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  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [directRNA]
    GSE314420Homo sapiens7 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

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  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [invitroSHAPEPool1]
    GSE314419Homo sapiens4 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

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  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [invitroBIDpool2]
    GSE314391Homo sapiens8 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

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  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [incellBIDPool1]
    GSE314389Homo sapiens66 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

    扰动筛选
  • RNA sequence, structure, and cell type specific features drive pseudouridylation by PUS7 [invitroBIDPool1]
    GSE314388Homo sapiens6 个样本2026-10-28

    Pseudouridines are abundant mRNA modifications that can impact splicing, translation, and stability to tune gene expression. PUS7 is one of the major mRNA pseudouridine synthases whose dysregulation leads to neurodevelopmental disorders and cancer, underscoring the critical function of PUS7-dependent pseudouridines. Beyond a short and degenerate consensus sequence, the molecular mechanisms underlying PUS7-mediated pseudouridylation remain unknown. A lack of targeted, high-throughput pseudouridine detection methods limits simultaneous interrogation of PUS7 regulatory features across many experimental conditions. We developed novel Nanopore sequencing tools, including Nano-Mod-Amp, to reveal pseudouridine stoichiometry, its RNA structural context, and dependence on PUS7 levels at specific sites across biological conditions. We established that RNA sequence and structural features are important for efficient mRNA modification by PUS7. Perturbing structure through mutations or antisense oligos modulates pseudouridylation levels. Pseudouridines are largely responsive to PUS7 protein levels, demonstrating the regulatory potential of varying PUS7 levels across cellular conditions. Conversely, PUS7 activity is also regulated in a cell-type specific manner, independent of PUS7 expression levels in a manner consistent with regulation by RNA structure and RNA binding proteins. Together, we uncovered regulatory features guiding PUS7 activity using new Nanopore sequencing tools, enabling site specific modulation of PUS7-dependent pseudouridines. Our framework can be applied to other RNA-modifying enzymes to query the regulation of the epitranscriptome.

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  • RNA sequencing demonstrates alterations in the gene expression profile of HUVECs upon NETs stimulation.
    GSE314216Homo sapiens6 个样本2026-10-28

    RNA sequencing was applied to comprehensively assess changes in the gene expression profile of HUVECs following exposure to control or NETs.

  • ACSS2-Mediated Metabolic-Epigenetic Crosstalk Drives Fulvestrant Resistance and Represents a Novel Therapeutic Target [NanoString]
    GSE300553Homo sapiens6 个样本2026-10-28

    Endocrine therapies target hormone-dependent cancer cells, primarily through estrogen receptor alpha (ERα), expressed in ~70% of breast cancers (ER+). Despite treatment advances, 30-40% of ER+ breast cancer patients experience recurrence and metastasis, with 5-year survival rates of only 31.9%. We validated poor outcomes for liver metastasis patients treated with Fulvestrant (Fulv) using the local Carle Foundation Hospital cohort and examined metabolic pathways in liver metastatic patient-derived xenograft (PDX) models, revealing upregulated lipid and acetyl-CoA production. Our previous work demonstrated that combining Fulv with acetyl-CoA synthase inhibitor (ACSI) targeting Acyl-CoA Synthetase Short Chain Family Member 2 (ACSS2), synergistically reduced ER+ metastatic breast cancer (MBC) cell viability in vitro. Using multiple analytical approaches—isotope tracing, CUT&RUN sequencing, immunofluorescence, western blot, and RNA sequencing—we characterized the effects of acetyl-CoA synthesis inhibition on Fulv-induced alterations. Results showed increased ACSS2 expression and acetate utilization with Fulv treatment. Isotope tracing revealed that Fulv decreased acetate flux to the TCA cycle while promoting fatty acid synthesis, though fatty acid synthesis inhibition did not synergize with Fulv. Importantly, ACSS2 was predominantly nuclear for therapy-resistant cells, suggesting epigenetic regulation roles. CUT&RUN sequencing showed Fulv treatment increased global ACSS2 binding sites and ERα/ACSS2/H3K27ac overlapping sites, which combination ACSI+Fulv therapy completely eliminated. RNA sequencing revealed increased cell proliferation gene expression with Fulv treatment. Combination therapy reduced metastatic burden. Our findings indicate ACSS2 contributes to endocrine therapy resistance through nuclear acetyl-CoA provision for epigenetic alterations. Targeting these cancer cell adaptations represents a novel therapeutic approach potentially reducing metastasis-related mortality and improving breast cancer treatment outcomes.

  • ACSS2-Mediated Metabolic-Epigenetic Crosstalk Drives Fulvestrant Resistance and Represents a Novel Therapeutic Target [RNA-Seq]
    GSE300550Homo sapiens18 个样本2026-10-28

    Endocrine therapies target hormone-dependent cancer cells, primarily through estrogen receptor alpha (ERα), expressed in ~70% of breast cancers (ER+). Despite treatment advances, 30-40% of ER+ breast cancer patients experience recurrence and metastasis, with 5-year survival rates of only 31.9%. We validated poor outcomes for liver metastasis patients treated with Fulvestrant (Fulv) using the local Carle Foundation Hospital cohort and examined metabolic pathways in liver metastatic patient-derived xenograft (PDX) models, revealing upregulated lipid and acetyl-CoA production. Our previous work demonstrated that combining Fulv with acetyl-CoA synthase inhibitor (ACSI) targeting Acyl-CoA Synthetase Short Chain Family Member 2 (ACSS2), synergistically reduced ER+ metastatic breast cancer (MBC) cell viability in vitro. Using multiple analytical approaches—isotope tracing, CUT&RUN sequencing, immunofluorescence, western blot, and RNA sequencing—we characterized the effects of acetyl-CoA synthesis inhibition on Fulv-induced alterations. Results showed increased ACSS2 expression and acetate utilization with Fulv treatment. Isotope tracing revealed that Fulv decreased acetate flux to the TCA cycle while promoting fatty acid synthesis, though fatty acid synthesis inhibition did not synergize with Fulv. Importantly, ACSS2 was predominantly nuclear for therapy-resistant cells, suggesting epigenetic regulation roles. CUT&RUN sequencing showed Fulv treatment increased global ACSS2 binding sites and ERα/ACSS2/H3K27ac overlapping sites, which combination ACSI+Fulv therapy completely eliminated. RNA sequencing revealed increased cell proliferation gene expression with Fulv treatment. Combination therapy reduced metastatic burden. Our findings indicate ACSS2 contributes to endocrine therapy resistance through nuclear acetyl-CoA provision for epigenetic alterations. Targeting these cancer cell adaptations represents a novel therapeutic approach potentially reducing metastasis-related mortality and improving breast cancer treatment outcomes.

  • ACSS2-Mediated Metabolic-Epigenetic Crosstalk Drives Fulvestrant Resistance and Represents a Novel Therapeutic Target [CUT&Run]
    GSE300549Homo sapiens48 个样本2026-10-28

    Endocrine therapies target hormone-dependent cancer cells, primarily through estrogen receptor alpha (ERα), expressed in ~70% of breast cancers (ER+). Despite treatment advances, 30-40% of ER+ breast cancer patients experience recurrence and metastasis, with 5-year survival rates of only 31.9%. We validated poor outcomes for liver metastasis patients treated with Fulvestrant (Fulv) using the local Carle Foundation Hospital cohort and examined metabolic pathways in liver metastatic patient-derived xenograft (PDX) models, revealing upregulated lipid and acetyl-CoA production. Our previous work demonstrated that combining Fulv with acetyl-CoA synthase inhibitor (ACSI) targeting Acyl-CoA Synthetase Short Chain Family Member 2 (ACSS2), synergistically reduced ER+ metastatic breast cancer (MBC) cell viability in vitro. Using multiple analytical approaches—isotope tracing, CUT&RUN sequencing, immunofluorescence, western blot, and RNA sequencing—we characterized the effects of acetyl-CoA synthesis inhibition on Fulv-induced alterations. Results showed increased ACSS2 expression and acetate utilization with Fulv treatment. Isotope tracing revealed that Fulv decreased acetate flux to the TCA cycle while promoting fatty acid synthesis, though fatty acid synthesis inhibition did not synergize with Fulv. Importantly, ACSS2 was predominantly nuclear for therapy-resistant cells, suggesting epigenetic regulation roles. CUT&RUN sequencing showed Fulv treatment increased global ACSS2 binding sites and ERα/ACSS2/H3K27ac overlapping sites, which combination ACSI+Fulv therapy completely eliminated. RNA sequencing revealed increased cell proliferation gene expression with Fulv treatment. Combination therapy reduced metastatic burden. Our findings indicate ACSS2 contributes to endocrine therapy resistance through nuclear acetyl-CoA provision for epigenetic alterations. Targeting these cancer cell adaptations represents a novel therapeutic approach potentially reducing metastasis-related mortality and improving breast cancer treatment outcomes.

  • ACSS2-Mediated Metabolic-Epigenetic Crosstalk Drives Fulvestrant Resistance and Represents a Novel Therapeutic Target [ATACSeq]
    GSE300548Homo sapiens12 个样本2026-10-28

    Endocrine therapies target hormone-dependent cancer cells, primarily through estrogen receptor alpha (ERα), expressed in ~70% of breast cancers (ER+). Despite treatment advances, 30-40% of ER+ breast cancer patients experience recurrence and metastasis, with 5-year survival rates of only 31.9%. We validated poor outcomes for liver metastasis patients treated with Fulvestrant (Fulv) using the local Carle Foundation Hospital cohort and examined metabolic pathways in liver metastatic patient-derived xenograft (PDX) models, revealing upregulated lipid and acetyl-CoA production. Our previous work demonstrated that combining Fulv with acetyl-CoA synthase inhibitor (ACSI) targeting Acyl-CoA Synthetase Short Chain Family Member 2 (ACSS2), synergistically reduced ER+ metastatic breast cancer (MBC) cell viability in vitro. Using multiple analytical approaches—isotope tracing, CUT&RUN sequencing, immunofluorescence, western blot, and RNA sequencing—we characterized the effects of acetyl-CoA synthesis inhibition on Fulv-induced alterations. Results showed increased ACSS2 expression and acetate utilization with Fulv treatment. Isotope tracing revealed that Fulv decreased acetate flux to the TCA cycle while promoting fatty acid synthesis, though fatty acid synthesis inhibition did not synergize with Fulv. Importantly, ACSS2 was predominantly nuclear for therapy-resistant cells, suggesting epigenetic regulation roles. CUT&RUN sequencing showed Fulv treatment increased global ACSS2 binding sites and ERα/ACSS2/H3K27ac overlapping sites, which combination ACSI+Fulv therapy completely eliminated. RNA sequencing revealed increased cell proliferation gene expression with Fulv treatment. Combination therapy reduced metastatic burden. Our findings indicate ACSS2 contributes to endocrine therapy resistance through nuclear acetyl-CoA provision for epigenetic alterations. Targeting these cancer cell adaptations represents a novel therapeutic approach potentially reducing metastasis-related mortality and improving breast cancer treatment outcomes.

  • RNA sequencing of HeLa cells infected with CHIKV and CHIKV mutant virus
    GSE299154Homo sapiens12 个样本2026-10-28

    The analysis indicates that CHIKV 6K/TF R37S infection leads to changes in genes related to endoplasmic reticulum stress, and KEGG analysis also enriched pathways related to endoplasmic reticulum stress in biological metabolism. Meanwhile, CHIKV TF ΔPBM infection causes changes in genes related to ion transport, and KEGG analysis has enriched pathways related to biological metabolism that are associated with sugar metabolism

  • Transcriptomic Insights into Cleidocranial Dysplasia Pathogenesis in Alveolar Bone Mesenchymal Stem Cells
    GSE297061Homo sapiens16 个样本2026-10-28

    Cleidocranial dysplasia (CCD) is a genetic disorder that primarily impacts skeletal and dental development, often leading to unerupted teeth due to impaired alveolar bone remodeling. This study investigates the transcriptomic profiles of alveolar bone-derived mesenchymal stem cells (aBMSCs) from CCD patients and unaffected controls to elucidate the molecular mechanisms underlying these dental defects. aBMSCs were isolated from two unrelated CCD patients with confirmed RUNX2 variants (c.673C>T, p.(Arg225Trp) and c.739delA, p.(Ser247Valfs*3)) and from 10 controls. Cells were cultured under general and osteogenic conditions. RNA sequencing, qRT-PCR, and bioinformatic analyses were used to assess gene expression profiles and validate key findings.CCDs exhibited significant dysregulation of ECM genes, including downregulation of COL1A1, COL3A1, and COL5A1 during osteogenic differentiation, indicating impaired bone formation. Disruptions in key signaling pathways, such as G protein-coupled receptor and prostaglandin signaling, highlighted broader osteogenic regulatory perturbations. CCDs displayed distinct transcriptional responses to osteogenic induction, with numerous DEGs, but no single gene was consistently dysregulated across all CCD-control comparisons, reflecting inter-individual heterogeneity. Notably, LGR4, PPP1R12B, PTGER2, and PTGS1 were consistently dysregulated in CCD under both basal and osteogenic conditions, with inverse expression relative to controls. These genes may represent key molecular signatures of CCD and contribute to its phenotypic variability. These findings highlight disrupted ECM formation and transcriptional heterogeneity in CCD, reflecting the complex effects of distinct RUNX2 variants. Consistently dysregulated genes, including LGR4, PPP1R12B, PTGER2, and PTGS1, may serve as key markers of impaired osteogenesis and potential therapeutic targets.

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  • Transcriptomic Profiling of Primary Tumor, Brain Metastasis, and Normal Brain Tissues of Lung Adenocarcinoma (LUAD)
    GSE293159Homo sapiens12 个样本2026-10-28

    The objective of this sequencing was to investigate the differential molecular characteristics among primary LUAD, brain metastases (BrM), and normal brains. We aim to identify unique signatures and pathways involved in the metastatic progression of LUAD to the brain, potentially uncovering novel targets for therapeutic intervention.

  • Effect of stable knockdown of KRT18 on gene expression of SAS cells
    GSE292554Homo sapiens6 个样本2026-10-28

    KRT18 was reported to emerge at invasive front and was correlated to poor prognosis in oral squamous cell carcinoma. We extracted the RNA for sequencing from SAS cells which included that of wild type control groups and of stable KRT18 knockdown groups. From the results of GSEA analysis, the hallmark gene sets of epithelial mesenchymal transition (EMT) in KRT18 knockdown cells was highly suppressed. This implied that the emergence of KRT18 at invasive front of oral squamous cell carcinoma and the behavior of invasiveness of the cancer cells might be correlated to the process of EMT.

  • Effect of PRAME overexpression on gene expression of A549 NSCLC cells
    GSE292191Homo sapiens4 个样本2026-10-28

    To investigate the function of PRAME in lung cancer, we established OE PRAME A549 cell line.

  • RNA-seq analysis after venetoclax and azacitidine treatment in AML cells
    GSE284469Homo sapiens18 个样本2026-10-28

    RNA-seq analysis was performed in three isogenic MOLM-13 acute myeloid leukemia (AML) cell lines (p53 WT/p53 R248Q/p53 KO) to analyze gene expression changes after treatment with venetoclax and azacitidine.

  • Unveiling the role of UPF1-mediated mRNA decay in melanoma tumorigenesis by modulating the miR-101-3p/NANOS1 axis
    GSE267965Homo sapiens20 个样本2026-10-28

    Numerous studies have reported that Up-frameshift protein 1 (UPF1) as a crucial posttranscriptional regulator in nonsense-mediated mRNA decay (NMD), attributing its role to tumorigenesis across various cancers. However, its recently unveiled function in UPF1-mediated mRNA decay (UMD), intricately coordinated with miRNA, remains unexplored in the context of tumorigenesis. Herein, we elucidate the pivotal role of UPF1 in governing melanoma tumorigenesis by modulation of NANOS1 expression via miR-101-3p. Depletion of UPF1 across three melanoma cell lines significantly impaired cell growth, migration, and invasion by cell cycle arrest and disrupted tumor formation in vivo. Through comprehensive RNA-seq and biochemical analyses, we elucidate that attenuation of UPF1 leads to an increase in NANOS1 expression, consequently suppressing melanoma tumorigenesis. Mechanistically, UPF1 orchestrates the destabilization of NANOS1 via UPF1-mediated mRNA decay (UMD) facilitated by miR-101-3p. Intriguingly, our findings highlight a novel protein modification event involving the phosphorylation of ELK1 by the UPF1/miR-101-3p/NANOS1 pathway, as revealed by antibody microarray analysis. Importantly, our study underscores the significance of UPF1 and NANOS1 in regulating melanoma tumorigenesis, even in drug-resistant cell lines and in vivo models including syngeneic and xenograft mouse models. Collectively, these insights shed light on the role of UMD in melanoma tumorigenesis through the UPF1/NANOS1/miR-101-3p axis and unveil potential therapeutic strategies for both primary and drug-resistant melanoma treatment.