科研日报 2026-01-23

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📅 Daily Report - 2026-01-23

今日筛选出 76 条内容,来自 1 个来源

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今日焦点: METTL14在Kras诱导的髓单核细胞白血病发生中调控自噬,以及EGR1调控CSF1R基因组结构的新发现。

主要方向

  • 癌症发生与进展机制:涉及m6A修饰(METTL14)、信号通路(EZH2/E2F1、ATF4)、基因组调控(EGR1)以及lncRNA(IGF1R-AS1)在白血病、乳腺癌、肝癌、胶质母细胞瘤等癌症中的作用。
  • 免疫细胞功能与调控:研究免疫细胞(树突状细胞、γδ T细胞、CD8+ T细胞)在抗肿瘤免疫、组织监视及SARS-CoV-2感染中的作用,以及纳米颗粒对免疫细胞功能的诱导。
  • 代谢与疾病:探讨线粒体代谢对树突状细胞功能的影响,以及脂肪肝向肝癌转化的机制。

技术亮点

  • 多组学联合分析:结合RNA-seq、ATAC-seq、ChIP-seq、Hi-C等技术,深入解析基因表达、染色质可及性、转录因子结合及基因组三维结构。
  • 单细胞测序(scRNA-seq):应用于免疫细胞、CAR T细胞及肝脏疾病研究,揭示细胞异质性及微环境调控。

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🧬 数据前沿 (76条)

详细内容(前10条)

1.GSE298142 m6A 甲基转移酶 METTL14 通过失调自噬促进致癌 Kras 诱导的幼年骨髓单核细胞白血病 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:leukemia、regex:onco(logy|logist|gene|genic)、RNA-seq、KRAS
  • 📝 描述:Contributors : Guangyao Kong ; Peihua ZhangSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusThe M6A modification plays an important role in the pathogenesis of various myeloid malignancies. However, its specific role in RAS mutant-induced myeloid malignancy is incompletely understood. In this study, we found that m6A methyltransferase METTL14 was highly expressed and associated with a shorter survival in a RAS-mutant myeloid malignancy, juvenile myelomonocytic leukemia (JMML). The knockout of METTL14 was revealed to significantly promote hematopoietic stem/progenitor cells (HSPCs) expansion and suppresses disease progression in a KrasG12D/+ mutant-induced mouse model of JMML. Moreover, knockout of METTL14 reduces hyperproliferation of KrasG12D/+ HSPCs and suppresses oncogenic KrasG12D/+-induced myeloid disease in a cell-autonomous manner. Mechanistically, we revealed that the knockout of METTL14 reduced the autophagy levels of HSPCs by suppressing the transcription and translation of autophagy-related genes, such as Atg5 and Atg9a, through m6A modification. Furthermore, we found that the autophagy inhibition through knockout of ATG5 in Kras mutant mice promoted the expansion of HSPCs and inhibited the progression of leukemia disease, consistent with the phenotypes of knockout of METTL14. Finally, we observed that combined treatment with an m6A inhibitor and a MEK inhibitor synergistically suppressed JMML growth. Collectively, these findings highlight the critical role of METTL14 in JMML tumorigenesis and suggest that m6A RNA modification represents a promising therapeutic target for this disease.
  • 🔗 查看原文

2.GSE311097 外周SARS-CoV-2感染后小鼠脑免疫细胞的单细胞RNA测序

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、sequencing、single-cell
  • 📝 描述:Contributors : Lu Tan ; Shea Lowery ; Andrew Thurman ; Stanley PerlmanSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusNeurological and neuropsychiatric symptoms are among the most prevalent Post-Acute Sequelae of COVID-19 (PASC), collectively referred to as neuroPASC. Despite growing recognition, the mechanisms driving neuroPASC remain elusive, hindering therapeutic development. Brain immune cells - particularly microglia - have been implicated, yet current knowledge largely derives from post-mortem tissues with variable disease courses and comorbidities and limited spatial coverage. To address this, we established a PASC animal model by infecting C57BL/6 mice with a sublethal dose of mouse-adapted SARS-CoV-2. Infected mice exhibited persistent behavioural alterations and prolonged neuroinflammation in the absence of direct viral neuroinvasion. Single-cell RNA sequencing of brain immune cells collected at 0, 6, 30, and 100 days post-infection (dpi) revealed underlying dynamic, longitudinal immune responses. Microglia, the predominant brain-resident sentinel cells, displayed sustained expansion of subclusters characterized by inflammatory, stress response, and metabolic reprogramming signatures across all time points. Border-associated macrophages upregulated monocyte attractants during acute infection and were partially replaced by infiltrating monocytes. Concurrently, inflammatory monocytes and neutrophils showed maximal brain infiltration and antiviral activity at 6 dpi, potentially triggering long-term microglial activation. Together, these findings provide a high-resolution atlas of brain myeloid immune dynamics during neuroPASC and highlight a central role of microglia in sustaining chronic neuroinflammation, offering insight into potential therapeutic targets.
  • 🔗 查看原文

3.GSE298134 m6A甲基转移酶METTL14通过自噬失调促进致癌Kras诱导的幼年型骨髓单核细胞白血病

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:leukemia、regex:onco(logy|logist|gene|genic)、KRAS
  • 📝 描述:Contributors : Guangyao Kong ; Peihua ZhangSeries Type : Expression profiling by high throughput sequencing ; OtherOrganism : Mus musculusThe M6A modification plays an important role in the pathogenesis of various myeloid malignancies. However, its specific role in RAS mutant-induced myeloid malignancy is incompletely understood. In this study, we found that m6A methyltransferase METTL14 was highly expressed and associated with a shorter survival in a RAS-mutant myeloid malignancy, juvenile myelomonocytic leukemia (JMML). The knockout of METTL14 was revealed to significantly promote hematopoietic stem/progenitor cells (HSPCs) expansion and suppresses disease progression in a KrasG12D/+ mutant-induced mouse model of JMML. Moreover, knockout of METTL14 reduces hyperproliferation of KrasG12D/+ HSPCs and suppresses oncogenic KrasG12D/+-induced myeloid disease in a cell-autonomous manner. Mechanistically, we revealed that the knockout of METTL14 reduced the autophagy levels of HSPCs by suppressing the transcription and translation of autophagy-related genes, such as Atg5 and Atg9a, through m6A modification. Furthermore, we found that the autophagy inhibition through knockout of ATG5 in Kras mutant mice promoted the expansion of HSPCs and inhibited the progression of leukemia disease, consistent with the phenotypes of knockout of METTL14. Finally, we observed that combined treatment with an m6A inhibitor and a MEK inhibitor synergistically suppressed JMML growth. Collectively, these findings highlight the critical role of METTL14 in JMML tumorigenesis and suggest that m6A RNA modification represents a promising therapeutic target for this disease.
  • 🔗 查看原文

4.GSE285346 线粒体代谢和信号传导直接调控树突状细胞在抗肿瘤免疫中的功能

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immunity、dendritic cell、metabolism
  • 📝 描述:Series Type : Expression profiling by array ; Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusThis SuperSeries is composed of the SubSeries listed below.
  • 🔗 查看原文

5.GSE302362 纳米颗粒诱导抗原呈递单核细胞来源的树突状细胞可抑制转移并缓解转移微环境中的免疫抑制

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:monocyte、antigen、regex:immuno(logy|therapy|suppression)
  • 📝 描述:Contributors : Jeffrey A Ma ; Kate V Griffin ; Kathryn Kang ; Agustina Diener ; Ian A Schrack ; Elizabeth J Bealer ; Laila M Rad ; Rebecca S Pereles ; Jacqueline S Jeruss ; Lonnie D SheaSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusMyeloid immune cells play a major role in establishing a suitable microenvironment for metastatic tumor cells. Dysregulated myeloid cells suppress antigen-presentation pathways and effector T cell responses at distal organs, and reprogramming these cells may enhance anti-tumor cytotoxicity. Targeting myeloid cells with poly(lactide-co-glycolide) nanoparticles, which possess intrinsic immunomodulatory properties, can promote monocyte maturation to inhibit metastasis. Intravenously delivered nanoparticles made with polyvinyl alcohol, but not other surfactants, reduce the accumulation of neutrophils at the metastatic niche and induce the differentiation of monocytes into antigen-presenting monocyte-derived dendritic cells. The internalization of nanoparticles was linked to the upregulation of gene expression programs in monocyte-derived dendritic cells associated with antigen presentation and T cell stimulation, and ligand-receptor network modeling supports increased activation of Th1 cells by these monocyte-derived dendritic cells. Nanoparticle administration increased the proportion of CD4 cells with Th1 and Th17 phenotypes and did not inhibit metastasis in mice where monocytes or T cells were depleted, indicating that interactions between monocyte-derived dendritic cells and T cells are essential to the mechanism of action. Collectively, our findings demonstrate that nanoparticles can reprogram circulating monocytes into monocyte-derived dendritic cells to modulate the metastatic niche and enhance antigen presentation to stimulate intrinsic T cell responses.
  • 🔗 查看原文

6. GSE313170 研究次黄素化途径在前列腺癌进展中的作用

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、pathway
  • 📝 描述:Contributors : Michel Kahi ; Anne Vincent ; JeanJacques Diaz ; Frederic BostSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensWe studied the involvement of the hypusination pathway in prostate cancer progression using various models, including patient-derived tumor organoid cell lines and in vivo mouse models. We employed different omics techniques to identify the molecular mechanisms linking hypusination to the aggressiveness of prostate cancer.
  • 🔗 查看原文

7. GSE306252 通过mRNA测序鉴定肝细胞癌中的诊断性外泌体miRNA和致病调控网络

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、sequencing
  • 📝 描述:Contributors : Xiao Jingwen ; Ma Shiyue ; Tan Qiupei ; Xiao Jianlong ; Liu Shanshan ; Shi Qingfeng ; Yang JunSeries Type : Non-coding RNA profiling by high throughput sequencingOrganism : Homo sapiensBackground/Objectives: Hepatocellular carcinoma (HCC) is the sixth most common malignancy worldwide and the third leading cause of cancer-related mortality. Prognosis is stage-dependent, but most patients are diagnosed at advanced stages when curative treatment is not feasible. Alpha-fetoprotein (AFP), the most widely used biomarker, has limited sensitivity and specificity for early detection. Serum-derived exosomal mi-croRNAs (miRNAs) are stable in circulation, tumor-specific, and actively involved in cancer biology, making them promising non-invasive biomarkers. This study aimed to identify, validate, and functionally characterize serum-derived exosomal miRNAs with diagnostic potential in HCC. Methods: Serum exosomes were isolated from 50 HCC pa-tients and 50 matched healthy controls, characterized by transmission electron micros-copy, nanoparticle tracking analysis, and CD9/CD63/CD81 flow cytometry. High-throughput small RNA sequencing of 3 HCC and 3 control samples identified dif-ferentially expressed miRNAs (DEMs). Target genes were predicted via multiple data-bases, integrated into STRING protein–protein interaction networks, and analyzed with cytoHubba. Gene Ontology (GO) and KEGG enrichment analyses were performed. Hub gene expression and survival relevance were evaluated using GEPIA2. Candidate miRNAs were validated by RT-qPCR, and diagnostic performance was assessed with receiver operating characteristic (ROC) analysis. Results: Seven DEMs were identified; FOXO1 and SRSF11 emerged as hub genes. hsa-miR-27a-3p targeted FOXO1, and hsa-miR-493-3p targeted SRSF11. RT-qPCR confirmed hsa-miR-27a-3p upregulation (P = 0.003) and hsa-miR-493-3p downregulation (P = 0.014) in HCC exosomes. ROC analysis showed high diagnostic accuracy for hsa-miR-493-3p (AUC = 0.840) and hsa-miR-27a-3p (AUC = 0.827), comparable to AFP (AUC = 0.828), with improved performance when combined. Conclusions: Serum-derived exosomal hsa-miR-27a-3p and hsa-miR-493-3p are promising non-invasive biomarkers for HCC, with diagnostic value comparable to AFP and mechanistic links to FOXO1 and SRSF11. Their integration into miRNA-based panels may improve early detection.
  • 🔗 查看原文

8. GSE285347 IgA肾病表观遗传生物标志物的发现:利用ATAC-Seq分析循环CD8+ T细胞的染色质开放性

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:ATAC-seq、epigenetic
  • 📝 描述:Contributors : Gwanghun Kim ; Soojin Lee ; Ik Soo Kim ; Hyun Mu Shin ; Hang-Rae Kim ; Dong Ki KimSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensChromatin openess plays a critical role in understanding epigenetic regulation in disease states. Using ATAC-seq, we profiled circulating CD8+ T cells from IgA nephropathy (IgAN) patients to identify biomarkers distinguishing early and late disease stages. A total of 279 differential ATAC peaks were identified, with 122 selected as biomarkers based on fold change (>2) and statistical significance (P < 0.05). These biomarkers exhibited distinct chromatin accessibility patterns, highlighting differential regulatory mechanisms. Combining multiple biomarkers through weighted scoring enhanced predictive accuracy, with ROC analysis confirming their diagnostic potential. Our findings demonstrate that chromatin openness in circulating CD8+ T cells provides valuable insights into disease progression and serves as a robust platform for biomarker discovery in IgAN.
  • 🔗 查看原文

9. GSE277903 γδ T 细胞的先天组织免疫监视对 T 细胞受体具有实时依赖性 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:T cell、RNA-seq
  • 📝 描述:Contributors : Miguel Munoz-Ruiz ; Nicolas Veland ; Adrian HaydaySeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusWith clonotypic potential to engage different ligands, T cell receptor (TCR) γδ fulfils a key tenet of adaptive immunity. Nonetheless, many γδ repertoires are non-circulating, display limited diversity, and are commonly classified as innate-like, questioning any requirement for the TCR beyond the cells’ development. Addressing this long-standing issue, we now show that the steady-state phenotypes of different tissue-intrinsic γδ T cell compartments share a dependence on constitutive TCR expression. Deprived of this, cells rapidly become dysregulated, losing their capacity to respond to wide-ranging tissue insults, including imiquimod, an innate inducer of psoriasis-like pathology, u.v. irradiation, and melanoma. Thus, beyond any developmental requirements, the TCR is required in real time to regulate the cells’ innate-like tissue immunosurveillance. Biologically, this clearly distinguishes intrinsic γδ T cells from NK and other innate lymphoid cells, while clinically it stresses the importance of the TCR in delivering gd T cell-based immunotherapies.
  • 🔗 查看原文

10. GSE277902 γδ T 细胞的先天组织免疫监视对 T 细胞受体具有实时依赖性 [ATAC-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:T cell、ATAC-seq
  • 📝 描述:Contributors : Miguel Munoz-Ruiz ; Nicolas Veland ; Adrian HaydaySeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusWith clonotypic potential to engage different ligands, T cell receptor (TCR) γδ fulfils a key tenet of adaptive immunity. Nonetheless, many γδ repertoires are non-circulating, display limited diversity, and are commonly classified as innate-like, questioning any requirement for the TCR beyond the cells’ development. Addressing this long-standing issue, we now show that the steady-state phenotypes of different tissue-intrinsic γδ T cell compartments share a dependence on constitutive TCR expression. Deprived of this, cells rapidly become dysregulated, losing their capacity to respond to wide-ranging tissue insults, including imiquimod, an innate inducer of psoriasis-like pathology, u.v. irradiation, and melanoma. Thus, beyond any developmental requirements, the TCR is required in real time to regulate the cells’ innate-like tissue immunosurveillance. Biologically, this clearly distinguishes intrinsic γδ T cells from NK and other innate lymphoid cells, while clinically it stresses the importance of the TCR in delivering gd T cell-based immunotherapies.
  • 🔗 查看原文

💡 该来源还有 66 条内容,详见 文末

📊 关键词统计

关键词出现次数
RNA-seq16
cancer8
T cell7
tumor7
genome6
ATAC-seq6
carcinoma5
scRNA5
regex:onco(logylogist
sequencing4
aging4
ChIP-seq4
immune3
pathway2
single-cell2
transcriptome2
inflammation2
metabolism2
leukemia2
KRAS2

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🧬 数据前沿 其他内容 (66条)

📅 报告生成时间:2026-01-22 21:43
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