科研日报 2026-05-17

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📅 Daily Report - 2026-05-17

今日筛选出 108 条内容,来自 3 个来源

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🤖 今日AI智能总结

🧬 数据前沿

今日焦点: 多组学联合分析揭示缺血性中风后单核细胞源性巨噬细胞的动态变化;AP-1转录因子在肺鳞状细胞癌致癌机制及预后预测中起关键作用。

主要方向

  • 细胞动力学与疾病机制:研究缺血性中风、代谢性肝病、肝细胞癌、急性肾损伤等疾病中单核细胞源性巨噬细胞及其他细胞的转录组学和表观遗传学特征。
  • 肿瘤发生与进展:探索AP-1、SOX4/SMAD3、ERG融合基因、KLF2等在肺癌、白血病、前列腺癌、肝细胞癌等肿瘤中的致癌机制、信号通路及治疗靶点。
  • 干细胞与衰老:解析造血干细胞的代谢调控与复制寿命,以及肠道细胞在衰老过程中的转录组变化。

技术亮点

  • 多模态单细胞测序:结合scRNA-seq与scATAC-seq,深入解析细胞异质性与基因调控机制。
  • 空间转录组学:用于研究组织微环境,如肾脏损伤和肥胖相关子宫内膜癌的基因表达模式。

📊 学点生信

今日焦点: Probabilistic Time Series Cross-Validation(概率时间序列交叉验证)的R包crossvalidation发布,为时间序列预测的可靠性评估提供了新工具。

主要方向

  • 时间序列预测模型的性能评估。
  • 衡量预测区间覆盖率(coverage)。
  • 使用Winkler score量化预测误差。

技术亮点

  • 引入crossvalidation R包,实现概率时间序列交叉验证。
  • 提供量化预测不确定性的新方法。

🧪 博客更新

今日焦点: RNA起始位点单核苷酸变异影响抗病毒免疫信号,为RNA疗法设计提供新视角;维生素B2被发现可能促进癌细胞存活,通过增强肿瘤对铁死亡的抵抗力。

主要方向

  • 免疫信号调控机制研究
  • 癌症细胞存活与铁死亡抵抗机制研究

技术亮点

  • RNA测序与蛋白质相互作用分析
  • 探究维生素B2与肿瘤微环境的相互作用

📚 分类浏览

🧬 数据前沿 (105条)

详细内容(前10条)

1.GSE326241 多模态单细胞转录组和染色质可及性分析揭示缺血性中风后单核细胞衍生巨噬细胞的动态变化 [scRNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、monocyte、single-cell、scRNA
  • 📝 描述:Contributors : Milton Hamblin ; Jean-Pyo LeeSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusIschemic stroke promotes monocyte recruitment to the injured brain and their differentiation into monocyte-derived macrophages (MDMs). These cells contribute to debris clearance but may also exacerbate neuroinflammation. However, the heterogeneity of macrophage subsets and the phenotypic transitions that shape MDM functional states during the subacute phase of stroke remain incompletely characterized. To address this, we first performed single-cell RNA sequencing (scRNA-seq) to define the transcriptional landscape of the mouse brain 48 hours after transient middle cerebral artery occlusion/reperfusion compared with sham controls. Reclustering of macrophage-lineage cells identified multiple monocyte-derived subsets, including a distinct Cd68hi/Ctsdhi MDM subset enriched for lysosomal and lipid-processing gene expression programs. Cell trajectory inference supported a transition from inflammatory infiltrates toward the Cd68hi/Ctsdhi state, accompanied by induction of transcriptomic networks that drive macrophage function to favor a clearance-competent phenotype in response to ischemic stroke. Complementary single-cell ATAC sequencing (scATAC-seq) demonstrated cell type-specific chromatin remodeling after stroke and revealed MDM subclusters with accessibility at key loci regulating lysosomal function and lipid metabolism. Together, our findings define a cellular and regulatory framework of the subacute post-stroke brain and identify a lysosome-enriched Cd68hi/Ctsdhi MDM trajectory, highlighting endolysosomal and lipid-processing programs during early stroke recovery.
  • 🔗 查看原文

2.GSE326118 多模态单细胞转录组和染色质可及性分析揭示缺血性卒中后单核细胞衍生巨噬细胞的动态变化 [scATAC-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、monocyte、single-cell、scATAC
  • 📝 描述:Contributors : Milton Hamblin ; Jean-Pyo LeeSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusIschemic stroke promotes monocyte recruitment to the injured brain and their differentiation into monocyte-derived macrophages (MDMs). These cells contribute to debris clearance but may also exacerbate neuroinflammation. However, the heterogeneity of macrophage subsets and the phenotypic transitions that shape MDM functional states during the subacute phase of stroke remain incompletely characterized. To address this, we first performed single-cell RNA sequencing (scRNA-seq) to define the transcriptional landscape of the mouse brain 48 hours after transient middle cerebral artery occlusion/reperfusion compared with sham controls. Reclustering of macrophage-lineage cells identified multiple monocyte-derived subsets, including a distinct Cd68hi/Ctsdhi MDM subset enriched for lysosomal and lipid-processing gene expression programs. Cell trajectory inference supported a transition from inflammatory infiltrates toward the Cd68hi/Ctsdhi state, accompanied by induction of transcriptomic networks that drive macrophage function to favor a clearance-competent phenotype in response to ischemic stroke. Complementary single-cell ATAC sequencing (scATAC-seq) demonstrated cell type-specific chromatin remodeling after stroke and revealed MDM subclusters with accessibility at key loci regulating lysosomal function and lipid metabolism. Together, our findings define a cellular and regulatory framework of the subacute post-stroke brain and identify a lysosome-enriched Cd68hi/Ctsdhi MDM trajectory, highlighting endolysosomal and lipid-processing programs during early stroke recovery.
  • 🔗 查看原文

3.GSE295950 单细胞 RNA 测序揭示代谢功能障碍相关脂肪肝疾病肝脏中单核细胞来源巨噬细胞的异质性

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:monocyte、metabolic、sequencing、single-cell
  • 📝 描述:Contributors : Haozhe Xu ; Lu Yang ; Guangyong SunSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusMonocyte-derived macrophages (MoMFs) orchestrate inflammation and fibrogenesis in metabolic dysfunction-associated steatotic liver disease (MASLD). However, current therapeutic strategies targeting macrophage-mediated inflammation have shown limited clinical efficacy in MASLD. Using single-cell RNA sequencing (scRNA-seq) analysis of liver-infiltrating MoMFs from MASLD mouse models, we identified seven distinct clusters (c0-c6) with unique molecular signatures. Among these, the predominant CD14+CCR2+ (c0) showed multifaceted functions in fibrosis, lipid phagocytosis, and antigen presentation beyond inflammation. We identified two distinct clusters, CCR3+ (c3) and CCR7+ (c4) MoMFs, which exhibited enhanced pro-inflammatory/oxidative stress activity and specialized antigen-presenting capacity, respectively. Pseudotime analysis revealed that the resident basal cluster (c1) could give rise to both CD14+CCR2+ (c0) and CCR7+ (c4) MoMFs during disease progression, challenging the traditional view that CCR2+ MoMFs exclusively originate from bone marrow. Notably, these MoMFs subsets and their dynamic changes during disease progression were conserved between mouse models and human MASLD samples. These findings expand our understanding of MoMFs heterogeneity and suggest new therapeutic strategies for MASLD.
  • 🔗 查看原文

4.GSE301840 挽救生命的左心室辅助装置促进有利于心脏脂肪酸代谢、修复和抗炎的转录组特征

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:inflammation、metabolism、cardiac
  • 📝 描述:Contributors : Pauline Mury ; Olina Dagher ; Pierre-Emmanuel Noly ; Anique Ducharme ; Shreya Gramolini ; Filio Billia ; Eric ThorinSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensIn this study, we performed single-nuclei RNA sequencing on heart samples from 6 end-stage heart failure patients (3 ischemic cardiomyopathy and 3 non-ischemic cardiomyopathy). Each of these patients was treated with a left ventricular assist device (LVAD). Analysis of the longitudinal effect of LVAD at the transcriptomic level revealed a common signature profile related to the glucocorticoid receptor, independent of etiologies. Specifically, four genes promoting cardiac fatty acid metabolism, repair, and anti-inflammatory action were highlighted: FKBP5, ZBTB16, FOXO3, and PDK4.
  • 🔗 查看原文

5.GSE267599 AP-1 介导致癌转录并预测肺鳞状细胞癌患者的死亡率 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、regex:onco(logy|logist|gene|genic)、RNA-seq
  • 📝 描述:Contributor : Xianglong TanSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensDespite the growing volume of genomic data, there remains a gap in our understanding of the mechanisms driving oncogenic transcription during non-small cell lung cancer (NSCLC) progression. In this study, we employed a model cell line-guided, multi-omic approach including promoter-capture Hi-C, ATAC-Seq, transcriptomics, and epigenomics, to uncover the epigenomic and three-dimensional (3D) genomic alterations on oncogenes in NSCLC patients from the Cancer Genome Atlas (TCGA). Our model cell lines recapitulate key aspects of the transcriptomic and chromatin-accessibility changes observed in NSCLC patients. ChIP-Seq analysis in model cell lines, revealed increased activity at promoters and enhancers, but decreased activity at insulators in NSCLC patients. We identified several increased promoter-enhancer interaction events in upregulated oncogenes. These aberrant enhancer-promoter looping events were mediated by the transcription factor AP-1. Survival analysis revealed a significant correlation between AP-1 expression levels and mortality in lung squamous carcinoma patients, but not in lung adenocarcinoma patients. Inhibition of AP-1, using AP-1 or JNK inhibitors, suggests that the abnormal activity of AP-1 is modulated by JNK kinases within the MAPK pathway, which promotes oncogenic transcription in NSCLC. These findings highlight the role of AP-1 in promoting lung squamous cell carcinoma progression and suggest that AP-1 and JNK inhibitors could be useful in treating high AP-1 lung squamous cell cancers.
  • 🔗 查看原文

6.GSE267597 AP-1 介导致癌转录并预测肺鳞状细胞癌患者的死亡率 [ChIP-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、regex:onco(logy|logist|gene|genic)、ChIP-seq
  • 📝 描述:Contributor : Xianglong TanSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensDespite the growing volume of genomic data, there remains a gap in our understanding of the mechanisms driving oncogenic transcription during non-small cell lung cancer (NSCLC) progression. In this study, we employed a model cell line-guided, multi-omic approach including promoter-capture Hi-C, ATAC-Seq, transcriptomics, and epigenomics, to uncover the epigenomic and three-dimensional (3D) genomic alterations on oncogenes in NSCLC patients from the Cancer Genome Atlas (TCGA). Our model cell lines recapitulate key aspects of the transcriptomic and chromatin-accessibility changes observed in NSCLC patients. ChIP-Seq analysis in model cell lines, revealed increased activity at promoters and enhancers, but decreased activity at insulators in NSCLC patients. We identified several increased promoter-enhancer interaction events in upregulated oncogenes. These aberrant enhancer-promoter looping events were mediated by the transcription factor AP-1. Survival analysis revealed a significant correlation between AP-1 expression levels and mortality in lung squamous carcinoma patients, but not in lung adenocarcinoma patients. Inhibition of AP-1, using AP-1 or JNK inhibitors, suggests that the abnormal activity of AP-1 is modulated by JNK kinases within the MAPK pathway, which promotes oncogenic transcription in NSCLC. These findings highlight the role of AP-1 in promoting lung squamous cell carcinoma progression and suggest that AP-1 and JNK inhibitors could be useful in treating high AP-1 lung squamous cell cancers.
  • 🔗 查看原文

7.GSE267596 AP-1 介导致癌转录并预测肺鳞状细胞癌患者的死亡率 [ATAC-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、regex:onco(logy|logist|gene|genic)、ATAC-seq
  • 📝 描述:Contributor : Xianglong TanSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensDespite the growing volume of genomic data, there remains a gap in our understanding of the mechanisms driving oncogenic transcription during non-small cell lung cancer (NSCLC) progression. In this study, we employed a model cell line-guided, multi-omic approach including promoter-capture Hi-C, ATAC-Seq, transcriptomics, and epigenomics, to uncover the epigenomic and three-dimensional (3D) genomic alterations on oncogenes in NSCLC patients from the Cancer Genome Atlas (TCGA). Our model cell lines recapitulate key aspects of the transcriptomic and chromatin-accessibility changes observed in NSCLC patients. ChIP-Seq analysis in model cell lines, revealed increased activity at promoters and enhancers, but decreased activity at insulators in NSCLC patients. We identified several increased promoter-enhancer interaction events in upregulated oncogenes. These aberrant enhancer-promoter looping events were mediated by the transcription factor AP-1. Survival analysis revealed a significant correlation between AP-1 expression levels and mortality in lung squamous carcinoma patients, but not in lung adenocarcinoma patients. Inhibition of AP-1, using AP-1 or JNK inhibitors, suggests that the abnormal activity of AP-1 is modulated by JNK kinases within the MAPK pathway, which promotes oncogenic transcription in NSCLC. These findings highlight the role of AP-1 in promoting lung squamous cell carcinoma progression and suggest that AP-1 and JNK inhibitors could be useful in treating high AP-1 lung squamous cell cancers.
  • 🔗 查看原文

8.GSE294606 通过转录组测序分析鉴定与主动脉夹层中程序性细胞死亡相关的生物标志物 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、RNA-seq、transcriptome
  • 📝 描述:Contributors : Yukui Du ; Dongqing Chang ; Bofeng Yu ; Li Zhang ; Liang He ; Fengxia Wang ; Shaoyan ChangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensBackground: Aortic dissection (AD) seriously threatens human health. Programmed cell death (PCD) plays a crucial role in AD development. This study aimed to identify biomarkers associated with PCD-related genes (PCD-RGs) in AD, providing new targets and strategies for therapeutic intervention. Methods: Transcriptome sequencing data from 5 control samples and 8 AD samples were analyzed. Candidate genes were identified by intersecting PCD-RGs with differentially expressed genes (DEGs). Biomarkers were found through PPI analysis and gene expression analysis. Functional enrichment, immune infiltration, regulatory network, and drug prediction analyses further elucidated AD mechanisms. Results: IL6, IL10, and TLR4 were identified as biomarkers for AD. IL6/IL10 had high expression in AD samples, while TLR4 had lower expression. Notably, these biomarkers are enriched in the “MYC Targets V1” pathway. Additionally, 5 immune cells with significant different were identified between AD and control samples. Correlation analysis indicated that IL10 had the strongest positive correlation with memory B cells and the strongest negative correlation with endothelial cells. Furthermore, 30 TFs targeting IL6, 23 targeting IL10, and 5 targeting TLR4 were identified. 6 key miRNAs targeting biomarkers and 5 key lncRNAs targeting the key miRNAs were also identified. This information was employed to construct regulatory networks, elucidating the mechanisms underlying these biomarkers. Finally, a total of 48, 20, and 23 drugs targeting IL6, IL10, and TLR4 were identified, which provided potential therapeutic targets for AD. Conclusion: IL6, IL10, and TLR4 were identified as biomarkers for AD, providing a promising foundation for targeted treatments.
  • 🔗 查看原文

9.GSE214527 组蛋白伴侣 ASF1B 在胎儿和成人红细胞生成过程中招募不同的表观遗传因子来调控组蛋白变体 H3.3 [ChIP-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:ChIP-seq、epigenetic、histone
  • 📝 描述:Contributor : Xiang GuoSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusTo identify the role of ASF1B in regulation of histone modification during murine erythropoiesis, H3K27ac and H3.3 ChIP-seq was performed in the WT and ASF1B KO E14.5 fetal liver and bone marrow cells. ASF1B was found bind to the promoter and potential enhancer region. Loss of ASF1B impaired H3.3 and H3K27ac enrichments during development.
  • 🔗 查看原文

10.GSE214526 组蛋白伴侣 ASF1B 在胎儿和成人红细胞生成过程中招募不同的表观遗传因子来调控组蛋白变体 H3.3 [ATAC-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:ATAC-seq、epigenetic、histone
  • 📝 描述:Contributor : Xiang GuoSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusTo determine ASF1B function in chromatin accessbility, ATAC Seq was performed in both WT and ASF1B KO mouse liver. Loss of ASF1B caused generally decresed of chrmoatin accessbility on the promoters.
  • 🔗 查看原文

💡 该来源还有 95 条内容,详见 文末

📊 学点生信 (1条)

详细内容(全部1条)

1. 使用 R 包 crossvalidation 进行概率时间序列交叉验证

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:R package
  • 📝 描述:Examples of use of R package crossvalidation for Probabilistic Time Series Cross-Validation (measuring coverage and Winkler score) Continue reading: Probabilistic Time Series Cross-Validation with R package crossvalidation
  • 🔗 查看原文
🧪 博客更新 (2条)

详细内容(全部2条)

1. RNA的微小变化,对先天免疫力产生巨大影响

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immunity
  • 📝 描述:RNA sequencing and protein interaction analyses reveal how a single nucleotide at the start of RNA can alter antiviral immune signaling and influence therapeutic RNA design…
  • 🔗 查看原文

2. 科学家发现维生素B2可能有助于癌细胞存活

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer
  • 📝 描述:Scientists have uncovered a surprising dark side to vitamin B2: it may help cancer cells stay alive. The vitamin supports a cellular shield that protects tumors from ferroptosis, a form of programmed cell death linked to cancer suppression. In lab tests, researchers used a vitamin B2-like compound called roseoflavin to break down that protection and trigger cancer cell death.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
cancer15
regex:onco(logylogist
transcriptome12
RNA-seq11
carcinoma9
single-cell7
epigenetic7
macrophage6
sequencing6
ChIP-seq6
immune5
histone5
proteomics4
scRNA4
metabolic4
ATAC-seq4
monocyte3
pathway3
tumor3
leukemia3

📎 更多内容

🧬 数据前沿 其他内容 (95条)

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