科研日报 2026-05-22

Page content

📅 Daily Report - 2026-05-22

今日筛选出 86 条内容,来自 2 个来源

Powered by 科研普拉斯 & Claude

🤖 今日AI智能总结

🧬 数据前沿

今日焦点: SETD2在神经元分化中调控RNA Pol II延伸,并与PAF1C相互作用(scRNA-seq, ATAC-seq, ChIP-seq)。MLLT3的YEATS结构域作为组蛋白标记(H3K9/18/27ac/cr)和ncRNA(7SK)的双重读取器,连接表观遗传与RNA信号通路,调控造血功能(RNA-Seq)。

主要方向

  • 肿瘤微环境与转移:研究中性粒细胞与不同表观遗传状态癌细胞的相互作用,以及免疫治疗(Brentuximab Vedotin)对蕈样肉芽肿的疗效。
  • 表观遗传调控机制:探索Mllt3、Setd2、Stag2-cohesin、Bcl7a在细胞分化、造血、抗体类别转换及肿瘤抑制中的作用。
  • 宿主免疫记忆:揭示CCR5高表达单核细胞在训练性免疫中抵抗败血症的代谢-表观遗传重塑机制。

技术亮点

  • 整合单细胞与空间蛋白转录组学,解析人成人口腔内成纤维细胞驱动的免疫调控。
  • 结合多组学技术(RNA-seq, ATAC-seq, ChIP-seq, scRNA-seq, small RNA-seq)深入解析生物学过程。

🧪 博客更新

今日焦点: MIT科学家发现半胱氨酸是肠道修复的关键,并揭示了IDOL酶是阿尔茨海默病的新型触发因子,其清除可显著减少淀粉样斑块。

主要方向

  • 探索太空环境对基因表达的影响,开发RNA测序分析流程。
  • 确定半胱氨酸在促进肠道自我修复中的作用。
  • 识别并靶向IDOL酶以对抗阿尔茨海默病。
  • 研究女性阿尔茨海默病风险差异,开发个性化预防策略。

技术亮点

  • 建立适用于太空生物学研究的RNA测序管道。
  • 发现IDOL酶作为阿尔茨海默病的新型治疗靶点。

📚 分类浏览

🧬 数据前沿 (82条)

详细内容(前10条)

1.GSE331226 CCR5 hi 单核细胞的代谢-表观遗传重编程维持对致命性脓毒症的长期训练免疫力 [scRNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immunity、metabolic、scRNA、epigenetic
  • 📝 描述:Series Type : Expression profiling by high throughput sequencingOrganism : Mus musculusTrained immunity enhances innate host defense by endowing monocytes with memory-like properties, yet the underlying integrated metabolic and epigenetic mechanisms remain elusive. Here, we demonstrate that co-immunization with Bacillus Calmette–Guérin (BCG) and bacterial lipoprotein (BLP) induces a durable form of trained immunity that provides robust, long-term protection against polymicrobial sepsis from early life into adulthood. Single-cell RNA sequencing revealed that this effect is mediated by an expansion of CCR5hi memory-like monocytes with enhanced antimicrobial capacity. Mechanistically, BCG+BLP vaccination activated the AKT–mTOR–HIF-1α axis, driving glycolytic reprogramming and subsequent lactate accumulation. We found that elevated lactate then promoted KAT2B-dependent histone H3K18 lactylation, an epigenetic mark directly facilitating the transcription of phagocytic and inflammatory genes. Critically, CCR5hi monocytes isolated from vaccinated human cord blood recapitulated these lactate-driven lactylation and trained immunity features. Together, our findings define a novel lactate–KAT2B–H3K18la epigenetic axis that orchestrates the long-term reprogramming of CCR5hi monocytes, highlighting CCR5hi monocytes as a promising therapeutic target for modulating innate immunity against lethal sepsis
  • 🔗 查看原文

2.GSE303246 MLLT3 YEATS 结构域是组蛋白标记 (H3K9/18/27ac/cr) 和非编码 RNA (7SK) 的双重读取器,连接表观遗传和 RNA 信号传导以调节造血作用 [RNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:RNA-seq、epigenetic、histone
  • 📝 描述:Contributors : Adam Boulton ; Ashish Kabra ; Nicholas Achille ; Emmalee R Adelman ; Dimitrios Anastasakis ; Felipe Beckedorff ; Pradeepkumar Cingaram ; Ying Huang ; Benjamin Leach ; Ramin Shiekhattar ; Akihiko Yokoyama ; Markus Hafner ; Maria Figueroa ; Nancy Zeleznik-Le ; John BushwellerSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusHerein we describe our findings that the YEATS domain of MLLT3 is not only a reader of histone acetylation and crotonylation but also binds to ncRNA.
  • 🔗 查看原文

3.GSE284279 中性粒细胞对不同上皮/间质表型的癌细胞的不同影响导致不同的肿瘤微环境和转移行为[3]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、tumor microenvironment
  • 📝 描述:Contributors : Ling Wu ; Xiang ZhangSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusNeutrophils play complicated roles in tumor progression. Examination of several murine triple negative breast cancer (TNBC) models revealed nearly opposite impact of neutrophils on epithelial-like vs. mesenchymal-like cancer cells (ECCs vs. MCCs). Interaction with ECCs upregulates ICAM1 in neutrophils, a feature that also distinguishes tumor-infiltrating neutrophils from other neutrophils in human. Direct adhesion between ECCs and neutrophils, especially the ICAMhigh subpopulation, promote the survival of each other – forming a symbiotic relationship. In contrast, MCCs are thwarted by neutrophils due to decreased cell adhesion and elastase resistance. The ICAM1high neutrophils are known for reverse migration to circulation. The adhesive and reverse migratory properties of ICAM1high neutrophils mediate intravasation of metastatic seeds. These observations were verified in a subset of human TNBCs that unexpectedly enrich non-Hispanic European patients. Thus, we demonstrated a co-evolution through which neutrophils sculpt phenotypes and metastatic behaviors of TNBC, which may preferentially occur in patients of certain race/ethnicity.
  • 🔗 查看原文

4.GSE284277 中性粒细胞与上皮样癌细胞的共生粘附塑造肿瘤微环境并促进转移[1] [共培养]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、tumor microenvironment
  • 📝 描述:Contributors : Ling Wu ; Xiang ZhangSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusNeutrophils play complicated roles in tumor progression. Examination of several murine triple negative breast cancer (TNBC) models revealed nearly opposite impact of neutrophils on epithelial-like vs. mesenchymal-like cancer cells (ECCs vs. MCCs). Interaction with ECCs upregulates ICAM1 in neutrophils, a feature that also distinguishes tumor-infiltrating neutrophils from other neutrophils in human. Direct adhesion between ECCs and neutrophils, especially the ICAMhigh subpopulation, promote the survival of each other – forming a symbiotic relationship. In contrast, MCCs are thwarted by neutrophils due to decreased cell adhesion and elastase resistance. The ICAM1high neutrophils are known for reverse migration to circulation. The adhesive and reverse migratory properties of ICAM1high neutrophils mediate intravasation of metastatic seeds. These observations were verified in a subset of human TNBCs that unexpectedly enrich non-Hispanic European patients. Thus, we demonstrated a co-evolution through which neutrophils sculpt phenotypes and metastatic behaviors of TNBC, which may preferentially occur in patients of certain race/ethnicity.
  • 🔗 查看原文

5. GSE321694 SETD2 促进 PAF1C 与延伸中的 RNA Pol II 的相互作用,并且是神经元分化所必需的 [scRNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:Neuronal、scRNA
  • 📝 描述:Contributor : Tuncay BaubecSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusChromatin modifications are relevant for mammalian development, and their aberrant deposition is associated with human disease. While the mechanisms that deposit and remove these modifications have been largely elucidated, their role in regulating gene activity during cellular differentiation has yet to be completely understood. By differentiating a panel of mouse embryonic stem cells lacking major chromatin regulators towards neuronal cells, we identified their requirement at different stages of cellular differentiation. We show that the H3K36me3 methyltransferase SETD2 is important for the establishment of neuronal gene expression during late stages of differentiation but is dispensable once the cells have fully differentiated. While we don’t find evidence for a requirement of the histone methyltransferase activity in this process, we identify an indirect role of SETD2 in mediating interactions between the PAF1 complex and the elongating RNA Pol II, which could be required for optimal transcriptional processivity of neuronal genes.
  • 🔗 查看原文

6. GSE317913 DADA通过增强CD8+ T细胞干性抑制肿瘤生长

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、T cell
  • 📝 描述:Contributors : Mingyue Bi ; Fei LiSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusTo elucidate the mechanism by which DADA enhances the CD8+ T cell anti-tumor immune responses, we performed signal-cell RNA-sequencing (scRNA-seq) on tumor-infiltrating CD45+ T cells isolated from ctrl- or DADA-treated MC38-bearing mice.In this study, we found that diisopropylamine dichloroacetate (DADA) enhances CD8⁺ T cell-mediated anti-tumor immunity and promotes the accumulation of Tpex cells in the tumor microenvironment. Mechanistically, DADA promotes the conversion of pyruvate to acetyl-CoA by inhibiting pyruvate dehydrogenase kinase, thereby increasing oxidative phosphorylation (OXPHOS) levels and mitochondrial fitness, and ultimately enhancing the stemness of CD8⁺ T cells. In mouse models, DADA treatment significantly improves the efficacy of PD-1 blockade. Furthermore, the addition of DADA to the in vitro expansion system of chimeric antigen receptor (CAR)-T cells confers stemness characteristics to the cells, thereby enhancing their anti-tumor efficacy.
  • 🔗 查看原文

7. GSE317219 人类成人口腔内成纤维细胞驱动的免疫调节的整合单细胞和空间蛋白质转录组学图谱

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:single-cell、spatial
  • 📝 描述:Contributors : Bruno F Matuck ; Khoa L Huynh ; Diana Pereira ; Quinn T Easter ; XiuYu Zhang ; Meik Kunz ; Nikhil Kumar ; Aditya Pratapa ; Brittany T Rupp ; Ameer Ghodke ; Alexander V Predeus ; Alexandre Fernandes ; Lili Szabó ; Stefan Hartmann ; Nadja Harnischfeger ; Zohreh Khavandgar ; Margaret Beach ; Paola Perez ; Benedikt Nilges ; Maria M Moreno ; Kang I Ko ; Rohit Singh ; Purushothama Rao Tata ; Sarah A Teichmann ; Adam Kimple ; Sarah Pringle ; Kai Kretzschmar ; Blake M Warner ; Inês Sequeira ; Jinze Liu ; Kevin M ByrdSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensThe immunoregulatory architecture of human oral tissues remains poorly defined despite their central role as barrier interfaces. We present the first integrated single-cell and dual-platform, spatial-proteotranscriptomic atlas of oral tissues, profiling >250,000 single-cell transcriptomes and >4 million spatially-resolved cells across 13 niches. Using our AI-enabled AstroSuite (TACIT, Constellation, STARComm, hist2omics), we defined tissue cellular neighborhoods (TCNs) and multicellular interaction modules (MCIMs) in health, revealing peri-epithelial fibroblast-centered hubs enriched for effector cytokines. We harmonized eight fibroblast subtypes (universal, immune, peri-epithelial, peri-vascular, peri-neural, APC-like, stress-responsive, and myofibroblasts) with stress-responsive subtypes partitioning between mucosae (Type I) and glands (Type II). Spatial multiomics mapped spatially recurrent receptor–ligand programs and identified mucosal stress-responsive fibroblasts as putative immunoregulatory hubs. In chronic periodontitis, niche-aware integration of healthy and diseased datasets revealed rewiring of fibroblast phenotypes and ligand::receptor networks into interdigitated inflammatory and reparative niches. Disease neighborhoods exhibited fragmentation, expansion of MHC-I⁺, MHC-II⁺, and PD-L1⁺ fibroblasts, and predicted spatial engagement with T cells at ectopic lymphoid structures. Drug2Cell analysis highlighted druggable stromal::immune networks. Together, this proteotranscriptomic atlas positions fibroblasts as central architects of structural immunity in human oral tissues and establishes a scalable framework for precision targeting of stromal::immune ecosystems across other barrier organs in health and chronic disease.
  • 🔗 查看原文

8. GSE316492 伴侣犬恶性乳腺肿瘤血液样本中的DNA甲基化:表观遗传学视角

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:epigenetic、methylation
  • 📝 描述:Contributors : Keunhwan Jang ; Geunwoo Jeon ; Jungwoo Han ; Seung-Bum Cho ; Suyeon Kim ; Songju Oh ; Ha-Jung KimSeries Type : Methylation profiling by genome tiling arrayOrganism : Canis lupus familiaris ; Homo sapiensCanine mammary gland tumors (cMGTs) are neoplasms arising from mammary epithelial or supporting tissues and account for approximately 50–70% of all tumors in intact female dogs. Epigenetic regulation, such as DNA methylation, has been investigated to elucidate the molecular mechanisms of cMGTs. This study explored whether DNA methylation alterations in peripheral blood reflect tumor-related epigenetic patterns. Twenty client-owned dogs were enrolled, including ten with cMGTs and eight healthy controls. Although no individual genes reached statistical significance after multiple testing correction, exploratory gene ontology (GO) analysis identified 22 biological processes showing potential enrichment, including two hypermethylated and twenty hypomethylated regions. Comparative analysis between canine and human datasets revealed 91 overlapping hypomethylated genes displaying consistent patterns across both species. The top enriched GO terms were morphogenesis of an epithelium and cell growth. These findings provide exploratory evidence that blood-based DNA methylation profiling may capture tumor-associated epigenetic alterations in cMGTs.
  • 🔗 查看原文

9. GSE316194 原位 PDAC 肿瘤中 WNT 反应性和 WNT 分泌性癌细胞群的批量 RNA 测序

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、RNA-seq
  • 📝 描述:Contributors : Stefan R Torborg ; Jung Yun Kim ; Tuomas TammelaSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusPancreatic ductal adenocarcinoma (PDAC) exhibits pronounced intratumoral heterogeneity driven in part by WNT signaling dynamics. To characterize transcriptional differences among distinct WNT signaling states in vivo, we performed bulk RNA sequencing of fluorescence-activated cell sorting (FACS)-isolated cancer cell populations from orthotopic PDAC tumors. WNT-responsive (WNT-R), WNT-secreting (WNT-S), double-positive (WNT-R/S), and double-negative (DN) cancer cells were isolated from KPC 7TCF-eGFP/Porcn-DMA reporter tumors. RNA libraries were prepared using the SMARTerSeq2 protocol and sequenced from four biological replicates per group. Differential gene expression analysis revealed enrichment of canonical WNT/β-catenin target genes in WNT-R cells, elevated Porcn expression in WNT-S cells, and intermediate transcriptional profiles in WNT-R/S cells, validating the fidelity of the reporter system in vivo. This dataset provides a resource for dissecting WNT-dependent cancer cell states and signaling interactions in PDAC.
  • 🔗 查看原文

10. GSE312230 Stag2-粘连蛋白在调节抗体类别转换重组中起主导作用[RNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:antibody、RNA-seq
  • 📝 描述:Contributors : Xuefei Zhang ; Zhichen Wan ; Leyi Yu ; Zifan YangSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusClass switch recombination (CSR) in B lymphocytes generates different functional antibody isotypes and cohesin-mediated chromatin loop extrusion is proposed to promote CSR. However, the detailed regulatory mechanism of cohesin in CSR is largely lacking. Here, we revealed that Stag2 is a specific cohesin regulator playing critical roles in promoting CSR. Stag2-deficiency, not Stag1-deficiency, significantly decreases the interaction of acceptor CH with CSR center, leading to decreased transcription of acceptor CH and impaired CSR. Notably, Stag2 could compensate for Stag1 binding within Igh upon Stag1-deficiency, while Stag2-deficiency significantly decreases Stag1 binding within Igh. Interestingly, Stag2 expression is higher than Stag1 during germinal center (GC) B cell development and Stag2 expression has a high correlation with CSR level in GC B cells upon vaccination and SARS-Cov-2 infection. Furthermore, Stag2 is also highly expressed in GC B cells within different tumors, corresponding to the high level of CSR in tumors. Altogether, our findings uncover the unrecognized specific roles of Stag2 in regulating CSR during physiological and pathological immune responses.
  • 🔗 查看原文

💡 该来源还有 72 条内容,详见 文末

🧪 博客更新 (4条)

详细内容(全部4条)

1. 太空转录组学:一种用于太空生物学研究的RNA测序流程

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、transcriptomics
  • 📝 描述:RNA sequencing supports space biology research by enabling transcriptome-wide analysis of gene expression changes associated with spaceflight and adaptation to space environments…
  • 🔗 查看原文

2. 麻省理工学院科学家发现一种有助于肠道自我修复的氨基酸。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:gut、regex:gut(-?microbiome)?
  • 📝 描述:MIT scientists have identified cysteine — an amino acid found in foods like meat, dairy, beans, and nuts — as a potent trigger for intestinal repair. In mice, a cysteine-rich diet activated immune cells that released healing signals, helping stem cells rebuild damaged intestinal tissue after radiation exposure. Researchers say the discovery could eventually lead to new dietary therapies for cancer patients suffering from treatment-related gut damage.
  • 🔗 查看原文

3. 科学家发现了一种隐藏的阿尔茨海默病诱因并将其关闭。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:Alzheimer
  • 📝 描述:A newly identified enzyme called IDOL could become a major new target in the fight against Alzheimer’s disease. Researchers found that removing it from neurons sharply reduced amyloid plaques and improved key brain processes linked to resilience and communication between cells. The discovery may lead to future treatments that go beyond slowing Alzheimer’s — potentially helping protect the brain from further decline.
  • 🔗 查看原文

4. 科学家发现,为何阿尔茨海默病对女性的影响远大于男性。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:Alzheimer
  • 📝 描述:Women may be especially sensitive to the effects of common dementia risk factors, according to a new UC San Diego study of over 17,000 adults. Researchers say tailoring prevention strategies specifically for women could be key to reducing Alzheimer’s risk.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
RNA-seq17
cancer10
histone9
transcriptome7
epigenetic7
tumor7
antibody6
Neuronal5
ChIP-seq5
sequencing4
scRNA4
single-cell4
resistance4
metabolism4
dendritic cell4
T cell3
ATAC-seq3
transcriptomics2
monocyte2
immunity2

📎 更多内容

🧬 数据前沿 其他内容 (72条)

📅 报告生成时间:2026-05-21 22:46
🤖 由 GitHub Actions 自动生成