科研日报 2026-04-24

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📅 Daily Report - 2026-04-24

今日筛选出 83 条内容,来自 2 个来源

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🤖 今日AI智能总结

🧬 数据前沿

今日焦点: 首次发现CBFA2T2作为新型组蛋白H3K27阅读器,通过调控代谢基因和代谢物水平,抑制H3K27me3去甲基化及肿瘤生长。

主要方向

  • 肿瘤学:研究CBFA2T2在H3K27me3调控及肿瘤发生中的作用,探索其作为治疗靶点的潜力。
  • 免疫学:解析肠道微生物代谢物(如丁酸)如何通过单细胞多组学调控肠道疼痛。
  • 癌症代谢:揭示H4K5乳酰化对肝细胞癌糖酵解的正反馈调控机制。

技术亮点

  • 整合多组学技术(ChIP-seq, RNA-seq, ATAC-seq, Hi-C, 甲基化测序, 单细胞测序)对复杂生物过程进行全面解析。
  • 利用全基因组CRISPR筛选技术,高效鉴定调控特定细胞功能(如巨噬细胞胆固醇外排)的关键基因。

🧪 博客更新

今日焦点: 一项新型血液检测技术有望提前数年预警阿尔茨海默病风险;首度发现肠道病毒与结直肠癌的潜在关联。

主要方向

  • 肠道菌群与疾病关联研究(结直肠癌)
  • 减肥药物停用后的体重管理策略
  • 胰腺细胞分离与单细胞分析技术
  • 炎症标志物在神经退行性疾病(阿尔茨海默病)早期风险预测中的应用

技术亮点

  • 创新性“肠道重置”微创手术,辅助体重管理
  • 高质量胰腺腺泡细胞分离技术,支持单细胞水平的健康与损伤研究
  • 炎症相关血液标志物(中性粒细胞)的早期阿尔茨海默病风险预测能力验证

📚 分类浏览

🧬 数据前沿 (79条)

详细内容(前10条)

1.GSE277547 一种新型组蛋白 H3K27 阅读器 CBFA2T2 通过调节代谢基因和代谢物水平抑制 H3K27me3 去甲基化和肿瘤生长 [ChIP-seq II]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、metabolic、ChIP-seq、histone
  • 📝 描述:Contributors : Shengfei He ; Rui GuoSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusHistone H3.1/3.2K27M and H3.3K27M mutation are driver mutations frequently identified in diffuse midline glioma (DMG). However, the precise mechanism by which H3K27M mediates tumorigenesis remains incompletely understood. By carrying out bait Protein-Protein Interaction followed by genome-wide screening (bPPI-seq) in H3.3WT and H3.3K27M mouse NSC models, we identified a novel histone reader CBFA2T2, which recognizes non-mutated or un-modified histone H3K27. Importantly, CBFA2T2 binding to H3K27, mediated by the NHR2 domain, is abrogated by the H3K27M oncogenic mutation. In H3.3 wildtype cells, CBFA2T2 represses transcription of genes involved in carbon metabolism and TCA cycle through its binding to H3K27. This alters the α-KG/Succinate (alpha-ketoglutarate/ Succinate) ratio and indirectly impacts H3K27me3 level, possibly through affecting the H3K27me3 demethylases. CBFA2T2 does not bind the H3.3K27M decorated chromatin in vivo, thus the K to M mutation, partially compromises the CBFA2T2 repressive function. However, over-expressing CBFA2T2 rescues the low H3K27me3 level in H3.3K27M mNSC and H3.3K27M DIPG cells, thus suppressing the H3.3K27M tumor growth. Our findings suggest a new mechanism, which may contribute to the low H3K27me3 level observed in the H3K27M cells, and provide a new strategy for H3K27M therapy through manipulation of CBFA2T2.
  • 🔗 查看原文

2.GSE277514 一种新型组蛋白 H3K27 阅读器 CBFA2T2 通过调节代谢基因和代谢物水平抑制 H3K27me3 去甲基化和肿瘤生长 [ChIP-seq I]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、metabolic、ChIP-seq、histone
  • 📝 描述:Contributors : Shengfei He ; Wenyun Weng ; Yujie Tang ; Rui GuoSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensHistone H3.1/3.2K27M and H3.3K27M mutation are driver mutations frequently identified in diffuse midline glioma (DMG). However, the precise mechanism by which H3K27M mediates tumorigenesis remains incompletely understood. By carrying out bait Protein-Protein Interaction followed by genome-wide screening (bPPI-seq) in H3.3WT and H3.3K27M mouse NSC models, we identified a novel histone reader CBFA2T2, which recognizes non-mutated or un-modified histone H3K27. Importantly, CBFA2T2 binding to H3K27, mediated by the NHR2 domain, is abrogated by the H3K27M oncogenic mutation. In H3.3 wildtype cells, CBFA2T2 represses transcription of genes involved in carbon metabolism and TCA cycle through its binding to H3K27. This alters the α-KG/Succinate (alpha-ketoglutarate/ Succinate) ratio and indirectly impacts H3K27me3 level, possibly through affecting the H3K27me3 demethylases. CBFA2T2 does not bind the H3.3K27M decorated chromatin in vivo, thus the K to M mutation, partially compromises the CBFA2T2 repressive function. However, over-expressing CBFA2T2 rescues the low H3K27me3 level in H3.3K27M mNSC and H3.3K27M DIPG cells, thus suppressing the H3.3K27M tumor growth. Our findings suggest a new mechanism, which may contribute to the low H3K27me3 level observed in the H3K27M cells, and provide a new strategy for H3K27M therapy through manipulation of CBFA2T2.
  • 🔗 查看原文

3.GSE277513 一种新型组蛋白 H3K27 阅读器 CBFA2T2 通过调节代谢基因和代谢物水平抑制 H3K27me3 去甲基化和肿瘤生长 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、metabolic、RNA-seq、histone
  • 📝 描述:Contributors : Shengfei He ; Rui GuoSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusHistone H3.1/3.2K27M and H3.3K27M mutation are driver mutations frequently identified in diffuse midline glioma (DMG). However, the precise mechanism by which H3K27M mediates tumorigenesis remains incompletely understood. By carrying out bait Protein-Protein Interaction followed by genome-wide screening (bPPI-seq) in H3.3WT and H3.3K27M mouse NSC models, we identified a novel histone reader CBFA2T2, which recognizes non-mutated or un-modified histone H3K27. Importantly, CBFA2T2 binding to H3K27, mediated by the NHR2 domain, is abrogated by the H3K27M oncogenic mutation. In H3.3 wildtype cells, CBFA2T2 represses transcription of genes involved in carbon metabolism and TCA cycle through its binding to H3K27. This alters the α-KG/Succinate (alpha-ketoglutarate/ Succinate) ratio and indirectly impacts H3K27me3 level, possibly through affecting the H3K27me3 demethylases. CBFA2T2 does not bind the H3.3K27M decorated chromatin in vivo, thus the K to M mutation, partially compromises the CBFA2T2 repressive function. However, over-expressing CBFA2T2 rescues the low H3K27me3 level in H3.3K27M mNSC and H3.3K27M DIPG cells, thus suppressing the H3.3K27M tumor growth. Our findings suggest a new mechanism, which may contribute to the low H3K27me3 level observed in the H3K27M cells, and provide a new strategy for H3K27M therapy through manipulation of CBFA2T2.
  • 🔗 查看原文

4.GSE285766 单细胞多组学测序揭示肠道微生物代谢产物丁酸在疼痛调节中细胞特异性的转录组和染色质可及性特征

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、single-cell、gut、regex:gut(-?microbiome)?
  • 📝 描述:Contributors : Ran Tao ; Feng TaoSeries Type : Expression profiling by high throughput sequencing ; Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusPain is a predominant symptom of temporomandibular joint (TMJ) disorders, presenting significant clinical challenges due to their complexity and limited treatment options. This study investigated the therapeutic potential of butyrate, a gut microbiome metabolite, in a complete Freund’s adjuvant (CFA)-induced mouse model of TMJ inflammatory pain. Butyrate administration significantly alleviated TMJ pain and restored butyrate levels in mouse feces, plasma, and the spinal trigeminal nucleus caudalis (Sp5C). Additionally, it reversed TMJ pain-induced reductions in acetylation within Sp5C neurons, a critical epigenetic mechanism linked to pain states. Utilizing single-nucleus RNA sequencing (snRNA-seq) and single-nucleus ATAC sequencing (snATAC-seq), we profiled transcriptional and chromatin accessibility changes at the single-cell level.
  • 🔗 查看原文

5.GSE320157 卵巢肿瘤 FAK 抑制释放 Omega-3 脂肪酸刺激 GATA6 腹膜巨噬细胞 CXCL13 产生,增强免疫疗法 II

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、macrophage、regex:immuno(logy|therapy|suppression)
  • 📝 描述:Contributors : Dwayne Stupack ; Xiao L Chen ; David SchlaepferSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusSupernatants from murine KMF tumors lacking or expressing focal adhesion kinases were added to macrophage to determine the impact of each tumor line on macrophage gene expression.
  • 🔗 查看原文

6.GSE299693 全基因组 CRISPR 筛选鉴定出 DTX4 调节肺泡蛋白沉积症中肺泡巨噬细胞胆固醇外流 [RNA-seq II]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、RNA-seq、genome
  • 📝 描述:Contributors : Xinmei Huang ; Zimu Wang ; Jingwei Shi ; Yonglong Xiao ; Mengshu Cao ; Yingwei Zhang ; Xinye XiaSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensPulmonary alveolar proteinosis (PAP) is a rare pulmonary syndrome characterized by impaired surfactant clearance, driven by dysfunctional cholesterol efflux in alveolar macrophages (AMs). However, the molecular determinants governing AM cholesterol homeostasis remain largely elusive. Here, through a genome-wide CRISPR activation screen in foamy macrophages and bulk RNA sequencing of AMs from PAP patients, we identify Deltex E3 Ubiquitin Ligase 4 (DTX4) as a pivotal regulator of cholesterol efflux in AMs. Adeno-associated virus (AAV) -mediated silencing of DTX4 led to excessive lipid accumulation in AMs, exacerbated alveolar proteinosis, increased lung opacities on imaging, and significantly deteriorated pulmonary function in mice. Similarly, DTX4 depletion in primary AMs impaired cholesterol efflux and promoted intracellular lipid deposition. In contrast, AM-specific overexpression of DTX4 markedly alleviated lipid accumulation, mitigated alveolar proteinosis, restored lung densities on computed tomography, and rescued pulmonary function in Csf2ra-/-mice, a model of PAP. Mechanistically, DTX4 deficiency downregulated PPAR-γ expression, driving foamy AM formation. Notably, the regulatory function of DTX4 in lipid homeostasis was partially mediated by PPAR-γ but independent of its canonical E3 ubiquitin ligase activity. Collectively, our findings establish DTX4 as a central orchestrator of AM cholesterol efflux and surfactant homeostasis, positioning it as a promising therapeutic target for PAP and a potential paradigm for cholesterol dysregulation in related disorders.
  • 🔗 查看原文

7.GSE299689 全基因组 CRISPR 筛选鉴定出 DTX4 调节肺泡蛋白沉积症中肺泡巨噬细胞胆固醇外流 [RNA-seq 1]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、RNA-seq、genome
  • 📝 描述:Contributors : Xinmei Huang ; Zimu Wang ; Jingwei Shi ; Yonglong Xiao ; Mengshu Cao ; Yingwei Zhang ; Xinye XiaSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensPulmonary alveolar proteinosis (PAP) is a rare pulmonary syndrome characterized by impaired surfactant clearance, driven by dysfunctional cholesterol efflux in alveolar macrophages (AMs). However, the molecular determinants governing AM cholesterol homeostasis remain largely elusive. Here, through a genome-wide CRISPR activation screen in foamy macrophages and bulk RNA sequencing of AMs from PAP patients, we identify Deltex E3 Ubiquitin Ligase 4 (DTX4) as a pivotal regulator of cholesterol efflux in AMs. Adeno-associated virus (AAV) -mediated silencing of DTX4 led to excessive lipid accumulation in AMs, exacerbated alveolar proteinosis, increased lung opacities on imaging, and significantly deteriorated pulmonary function in mice. Similarly, DTX4 depletion in primary AMs impaired cholesterol efflux and promoted intracellular lipid deposition. In contrast, AM-specific overexpression of DTX4 markedly alleviated lipid accumulation, mitigated alveolar proteinosis, restored lung densities on computed tomography, and rescued pulmonary function in Csf2ra-/-mice, a model of PAP. Mechanistically, DTX4 deficiency downregulated PPAR-γ expression, driving foamy AM formation. Notably, the regulatory function of DTX4 in lipid homeostasis was partially mediated by PPAR-γ but independent of its canonical E3 ubiquitin ligase activity. Collectively, our findings establish DTX4 as a central orchestrator of AM cholesterol efflux and surfactant homeostasis, positioning it as a promising therapeutic target for PAP and a potential paradigm for cholesterol dysregulation in related disorders.
  • 🔗 查看原文

8. GSE319257 2,3-二磷酸甘油酸变位酶 (BPGM) 定义了透明细胞肾细胞癌中的一种应激抵抗代谢状态

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、metabolic
  • 📝 描述:Contributors : Robert Labes ; Michael Faehling ; Philipp N BeckerSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensBackground: Clear cell renal cell carcinoma (ccRCC) is characterized by profound metabolic reprogramming and limited responsiveness to diverse therapeutic stressors, including epigenetic modulation. How glycolytic enzymes contribute to metabolic stress tolerance in ccRCC remains incompletely understood. Methods: We investigated the role of the glycolytic enzyme 2,3-bisphosphoglycerate mutase (BPGM) in ccRCC using human tumor specimens, siRNA-mediated gene silencing, functional cell-based assays, and transcriptomic profiling. Epigenetic stress was induced using the histone deacetylase inhibitor Vorinostat as a tool compound. Results: BPGM expression was consistently elevated in human ccRCC tissue compared with adjacent normal kidney. ccRCC A498 cells exhibited high basal BPGM levels and limited sensitivity to Vorinostat, whereas BPGM depletion increased cellular stress responses and reduced proliferative capacity. Despite inducing similar phenotypic outcomes, BPGM silencing and Vorinostat treatment triggered markedly distinct transcriptional programs. While HDAC inhibition caused broad, unspecific gene deregulation, BPGM loss elicited a focused stress-associated response, including activation of unfolded protein response and ferroptosis-related gene signatures. Conclusions: Our data identify BPGM as a determinant of metabolic stress resilience in ccRCC. By shaping selective transcriptional stress responses rather than global epigenetic reprogramming, BPGM may contribute to the intrinsic robustness of renal cancer cells. Targeting metabolic stress adaptation pathways may therefore complement epigenetic strategies in ccRCC.
  • 🔗 查看原文

9. GSE314272 PDS5 蛋白通过限制粘连蛋白-NIPBL 复合物的寿命来控制基因组结构 [Hi-C]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:Hi-C、genome
  • 📝 描述:Contributors : Roman R Stocsits ; Gordana Wutz ; Jan-Michael Peters ; Wen TangSeries Type : OtherOrganism : Gallus gallus ; Homo sapiensCohesin-NIPBL complexes extrude genomic DNA into loops that are constrained by CTCF boundaries. This process has important regulatory functions and weakens the separation between euchromatic and heterochromatic compartments. Cohesin can also bind PDS5A or PDS5B, which do not support loop extrusion but are required for the formation of CTCF boundaries. How PDS5 proteins perform this function is unknown. Here we show by in vitro single-molecule imaging that PDS5 proteins stop loop extrusion by facilitating the dissociation of NIPBL from cohesin. Hi-C experiments suggest that this function is required for the establishment of CTCF boundaries in cells. In silico modelling indicates that PDS5 proteins enable the separation between compartments by limiting cohesin’s velocity and chromatin-residence time. The degree of this compartmentalization depends on the frequency with which chromatin is extruded relative to the time it takes for compartments to form. These results identify PDS5 proteins as key regulators of genome organization.
  • 🔗 查看原文

10. GSE314270 PDS5 蛋白通过限制黏连蛋白-NIPBL 复合物的寿命来控制基因组结构 [ChIP-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:ChIP-seq、genome
  • 📝 描述:Contributors : Wen Tang ; Roman R Stocsits ; Gordana Wutz ; Jan-Michael PetersSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensCohesin-NIPBL complexes extrude genomic DNA into loops that are constrained by CTCF boundaries. This process has important regulatory functions and weakens the separation between euchromatic and heterochromatic compartments. Cohesin can also bind PDS5A or PDS5B, which do not support loop extrusion but are required for the formation of CTCF boundaries. How PDS5 proteins perform this function is unknown. Here we show by in vitro single-molecule imaging that PDS5 proteins stop loop extrusion by facilitating the dissociation of NIPBL from cohesin. Hi-C experiments suggest that this function is required for the establishment of CTCF boundaries in cells. In silico modelling indicates that PDS5 proteins enable the separation between compartments by limiting cohesin’s velocity and chromatin-residence time. The degree of this compartmentalization depends on the frequency with which chromatin is extruded relative to the time it takes for compartments to form. These results identify PDS5 proteins as key regulators of genome organization.
  • 🔗 查看原文

💡 该来源还有 69 条内容,详见 文末

🧪 博客更新 (4条)

详细内容(全部4条)

1.肠道内隐藏的病毒可能与结肠癌有关

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、gut、regex:gut(-?microbiome)?
  • 📝 描述:A newly discovered virus hiding inside a common gut bacterium could help explain one of medicine’s long-standing mysteries: why a microbe found in both healthy people and cancer patients is linked to colorectal cancer. The research suggests that the interaction between bacteria and the viruses they carry may be key to understanding disease risk. It may even lead to future screening tests that detect cancer risk earlier.
  • 🔗 查看原文

2. 简单的“肠道重置”或许可以阻止服用 Ozempic 或 Wegovy 后体重增加。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:gut、regex:gut(-?microbiome)?
  • 📝 描述:A new minimally invasive procedure may help people keep weight off after stopping popular drugs like Ozempic and semaglutide—something most patients struggle with. In a clinical trial, those who underwent a technique called duodenal mucosal resurfacing regained far less weight compared to others after discontinuing the medication. The procedure works by renewing the lining of the upper small intestine, potentially “resetting” metabolism and preserving the benefits of weight loss.
  • 🔗 查看原文

3. 高质量的腺泡细胞分离技术能够对健康和受损的胰腺进行单细胞分析。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:single-cell
  • 📝 描述:RNA sequencing reveals improved recovery and analysis of pancreatic acinar cells, enabling clearer insights into cell states in healthy tissue and disease conditions…
  • 🔗 查看原文

4. 简单的血液检测就能在数年前揭示阿尔茨海默病的风险。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:Alzheimer
  • 📝 描述:A routine blood marker tied to inflammation may reveal Alzheimer’s risk years in advance. Scientists found that higher neutrophil levels—part of the body’s first immune response—were linked to a greater chance of developing dementia. The discovery suggests this common lab value could help flag at-risk individuals before symptoms appear. It also raises the possibility that immune cells themselves may be fueling the disease.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
cancer13
metabolic10
RNA-seq9
single-cell7
leukemia7
ChIP-seq6
carcinoma6
genome6
macrophage5
tumor5
sequencing5
histone4
immune4
spatial4
transcriptome3
gut3
regex:gut(-?microbiome)?3
spatially3
ATAC-seq2
lymphoma2

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🧬 数据前沿 其他内容 (69条)

📅 报告生成时间:2026-04-23 22:04
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