科研日报 2026-05-08

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📅 Daily Report - 2026-05-08

今日筛选出 37 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

  • 首次揭示了海胆变态发育过程中的细胞状态(scRNA-seq)。
  • 发现UCA重塑肿瘤微环境(scRNA-seq)。

主要方向

  • 肿瘤微环境调控与免疫治疗:通过基因疗法、局部糖类工程、UCA干预等策略,重塑免疫抑制性肿瘤微环境,增强抗肿瘤免疫反应。
  • 基因组结构与调控:研究了先锋因子在组织特异性染色质进入和3D基因组组织中的作用(ChIP-seq, Hi-C, ATAC-seq),以及CTCF在基因表达调控中的双重作用。
  • 细胞周期与基因组稳定性:探究了SIRT2与MOF的拮抗作用对细胞周期和基因组稳定性的调控。

技术亮点

  • 空间代谢组学:对异质性人肿瘤组织进行空间分辨的代谢组学分析。
  • scRNA-seq在多模型中的应用:广泛应用于揭示海胆变态、肿瘤微环境、药物响应等复杂生物过程。

🧪 博客更新

今日焦点: 纳米孔RNA测序技术在揭示细菌基因调控机制和RNA修饰图谱绘制方面取得突破。

主要方向

  • 开发更精准的口腔感染抗菌治疗策略。
  • 绘制细胞特异性RNA修饰图谱,理解其调控机制。

技术亮点

  • 利用先进的纳米孔RNA测序技术,以前所未有的分辨率揭示口腔细菌的基因调控、生物膜形成机制。
  • 通过校准工作流程,提升纳米孔RNA测序在m6A修饰图谱绘制的精度,为理解成纤维细胞和神经元中的RNA调控提供新工具。

📚 分类浏览

🧬 数据前沿 (35条)

详细内容(前10条)

1.GSE330095 重塑胶质瘤中免疫抑制性肿瘤微环境可增强免疫介导基因治疗的疗效

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、immune、tumor microenvironment、glioma
  • 📝 描述:Contributors : Ziwen Zhu ; Pedro R Lowenstein ; Maria G CastroSeries Type : Methylation profiling by high throughput sequencingOrganism : Mus musculusGliomas account for ~80% of primary malignant brain tumors. Many CNS WHO grade 2–3 and some grade 4 gliomas harbor mutant isocitrate dehydrogenase 1 (mIDH1), which causes a gain of function mutation (IDH1 R132H) leading to the production of 2-hydroxyglutarate (2HG). Mutant IDH1-induced 2HG, through epigenetic reprogramming elicits an immune-permissive tumor microenvironment (TME). An immunosuppressive mechanism in the glioma TME involves adenosine production via the ectoenzyme CD73. This study investigates mIDH1’s influence on CD73 expression and adenosine levels. We demonstrate that mIDH1 glioma cells exhibit reduced CD73 expression, driven by DNA hypermethylation, leading to reduced adenosine levels.
  • 🔗 查看原文

2.GSE312327 异质性人类肿瘤组织的空间引导代谢组学分析

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、metabolomics、spatially
  • 📝 描述:Contributors : Jia-Ying Joey Lee ; Jingtao Zhang ; Sin-Chi Chew ; Shihleone Loong ; Xu Liang ; Jia-Wen Carmen Kong ; Fedor Grigoryev ; Alexander Yaw-Fui Chung ; Jai-Yao Tao ; Peng-Chung Cheow ; Glenn Bonney ; Brian K.P. Goh ; Wei-Qiang Leow ; Yulan Wang ; Lit-Hsin Loo ; Pierce Kah-Hoe ChowSeries Type : OtherOrganism : Homo sapiensBulk high-resolution mass spectrometry can provide sensitive and global snapshots of metabolites involved in cancer metabolism. However, intra-tumor heterogeneity (IntraTH) convolutes the cellular origins and tumor pathologies associated with the detected metabolites, thus making the elucidation of reproducible metabolic pathways and/or biomarkers very challenging. Here, we present “Spatially-guided MEtabolomics (SgME) profiling”, a multi-modal metabolomics data analysis approach to delineate IntraTH by integrating spatial and bulk metabolomics profiles from the same tumors. We applied SgME profiling to 117 tumor and adjacent normal tissues from 26 surgically resected primary liver tumors, and constructed SgME maps of metabolic regions (MERs) associated with key histopathological features. We used these maps to survey IntraTH and train regression models that accurately predict the MER compositions of bulk tumor samples. We also discovered a group of putative metabolites that increase in low-grade tumor regions but abruptly decrease in necrotic regions. SgME profiling may also be applied to heterogeneous tissues from other cancer types or metabolic diseases and provide systems-level understandings of the roles of local cellular niches in cancer metabolism and tumorigenesis.
  • 🔗 查看原文

3.GSE307062 共生体靶向肽增强固氮作用而无需终末分化 [细菌 RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:bacteria、regex:bacter(ia|ial|ium)、RNA-seq
  • 📝 描述:Contributor : Kevn D OliphantSeries Type : Expression profiling by high throughput sequencingOrganism : Mesorhizobium robiniaeLegumes have evolved lineage-specific peptides to control rhizobia and sustain nitrogen fixation. In inverted repeat-lacking clade (IRLC) legumes, nodule-specific cysteine-rich (NCR) peptides enforce terminal bacteroid differentiation, maximizing symbiotic output but restricting nodule lifespan. By contrast, Robinioid legumes, the IRLC’s sister clade, lack NCRs yet yet include perennial species that maintain productive nodules for decades. Here we identify a nodule-proline-glycine-rich peptide family (NPGs) as a conserved, genus-wide innovation of Robinia. NPGs are highly abundant, localize to the symbiosome membrane, and are intrinsically disordered. Exposure of Mesorhizobium robiniae to recombinant NPGs reprograms physiology, inducing nitrogenase expression while dampening growth without loss of viability. NPGs thus exemplify a distinct, reversible strategy of symbiont control, expanding the peptide repertoire that supports nitrogen fixation in perennial legumes.
  • 🔗 查看原文

4.GSE277030 UCA 重塑肿瘤微环境(scRNA-Seq)

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、tumor microenvironment、scRNA
  • 📝 描述:Contributors : Yunlong Shan ; Mengying ZhangSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusUCA remodeled tumor microenvironment through unknown features and mechanisms. Single-cell RNA-sequencing of mouse MC38 model treated with UCA was designed to depict a comprehensive cellular landscape and potential mechanisms.
  • 🔗 查看原文

5. GSE329994 单细胞RNA测序揭示海胆变态过程中的细胞状态

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、single-cell
  • 📝 描述:Series Type : Expression profiling by high throughput sequencingOrganism : Heliocidaris crassispinaMetamorphosis is a key process in the life history of most sea urchins. However, the understanding of its molecular mechanisms is still lacking, especially the basic cell biology pre-metamorphosis and post-metamorphosis. Therefore, we used single-cell RNA sequencing to obtain the cell states of larvae and juveniles of Heliocidaris crassispina.
  • 🔗 查看原文

6. GSE310028 以单细胞分辨率解析肥胖和骨关节炎中跨组织的索玛鲁肽依赖性转录组反应

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:single-cell、transcriptome
  • 📝 描述:Contributors : Yuchen Tian ; Junjie GaoSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusThe clinical observations of semaglutide cannot be fully explained by the classical GLP-1R signaling, indicating that semaglutide may exert its effects through a more complex multi tissue regulatory network. Based on this background, this study utilized high-fat diet (HFD) - induced obesity and surgery induced osteoarthritis (OA) models to simulate metabolic joint complications. By systematically collecting peripheral blood (PB), bone marrow (BM), liver, brain tissue, and skeletal muscle from C57BL/6 mice, and integrating 10x Genomics single-cell transcriptome sequencing, we constructed a cross tissue cell atlas that covers the immune, nervous, and motor metabolic systems under treatment with semaglutide. In addition, we compared the gene expression disturbances in mouse tissues after administration of semaglutide. Through these comparisons, we can more accurately decipher the specific effects of semaglutide treatment on gene expression in mice, thereby gaining a deeper understanding of their mechanisms of action in vivo.
  • 🔗 查看原文

7. GSE277368 SIRT2 和 MOF 之间的功能拮抗作用调节细胞周期进程和基因组稳定性 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:RNA-seq、genome
  • 📝 描述:Contributors : Maria Espinosa-Alcantud ; Gerard Martinez-Cebrian ; Anna Marazuela-Duque ; Alejandro VaqueroSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiens ; Mus musculusThe control of G2/M transition is a key event for genome stability as it ensures proper completion of DNA replication and repair before progressing into mitosis. One of the key regulators of G2/M checkpoint is the H4K16Ac-acetyltransferase MOF, which plays a major role in chromatin structure, gene expression, DNA damage and genome stability. Here we show that SIRT2, a member of the sirtuin family of NAD+-dependent deacetylases, antagonizes the role of MOF in G2/M. SIRT2 promotes specific inactivation of MOF through deacetylation and degradation of MOF, which results in re-expression of G2/M cell-cycle genes regulated by MOF. Underscoring the functional relevance of this antagonism, both factors play opposed roles in the deposition of the key mark H4K20me1 during G2/M. Consistently, loss of MOF in wt but not in SIRT2-/- cells induces a genome-wide deregulation of H4K20me1 distribution, which results in a premature loading of condensins. Our studies suggest that the G2/M checkpoint is shaped by the balance between both factors and involves condensing regulation and underscores the role of sirtuins in cell cycle control and genome stability under stress.
  • 🔗 查看原文

8. GSE277367 SIRT2 和 MOF 之间的功能拮抗作用调节细胞周期进程和基因组稳定性 [ChIP-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:ChIP-seq、genome
  • 📝 描述:Contributors : Maria Espinosa-Alcantud ; Gerard Martinez-Cebrian ; Anna Marazuela-Duque ; Alejandro VaqueroSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiens ; Mus musculusThe control of G2/M transition is a key event for genome stability as it ensures proper completion of DNA replication and repair before progressing into mitosis. One of the key regulators of G2/M checkpoint is the H4K16Ac-acetyltransferase MOF, which plays a major role in chromatin structure, gene expression, DNA damage and genome stability. Here we show that SIRT2, a member of the sirtuin family of NAD+-dependent deacetylases, antagonizes the role of MOF in G2/M. SIRT2 promotes specific inactivation of MOF through deacetylation and degradation of MOF, which results in re-expression of G2/M cell-cycle genes regulated by MOF. Underscoring the functional relevance of this antagonism, both factors play opposed roles in the deposition of the key mark H4K20me1 during G2/M. Consistently, loss of MOF in wt but not in SIRT2-/- cells induces a genome-wide deregulation of H4K20me1 distribution, which results in a premature loading of condensins. Our studies suggest that the G2/M checkpoint is shaped by the balance between both factors and involves condensing regulation and underscores the role of sirtuins in cell cycle control and genome stability under stress.
  • 🔗 查看原文

9. GSE329809 体重减轻对腹部皮下脂肪组织代谢过程的影响:一项使用总RNA二代测序的探索性研究

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:metabolic、sequencing
  • 📝 描述:Contributor : Tom A HuyghebaertSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensObesity induces profound alterations in adipose tissue biology, yet the extent to which these transcriptional changes resolve after weight loss remains unclear. This exploratory study investigated molecular remodeling of abdominal subcutaneous adipose tissue (SAT) in formerly obese individuals.
  • 🔗 查看原文

10. GSE292054 局部聚糖工程通过抗原交叉呈递诱导全身抗肿瘤免疫反应

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、antigen
  • 📝 描述:Contributors : Natalia Mantuano ; Michael T Sandholzer ; Heinz LäubliSeries Type : Expression profiling by high throughput sequencing ; OtherOrganism : Mus musculusThe advent of immune checkpoint inhibition (ICI) has revolutionized cancer treatment, yet response rates remain modest, and mechanisms of resistance are poorly understood. Recent studies highlight the role of sialic acid-containing glycans and their interaction with sialic acid-binding immunoglobulin-like lectin (Siglec) receptors in the tumor microenvironment, offering a promising avenue for cancer immunotherapy. Myeloid cells, particularly tumor-associated macrophages (TAMs), mediate sialic acid-mediated immune suppression via Siglec receptors. Different approaches, including antibodies, sialidases, and glycomimetics, can block the sialic acid-Siglec pathway, with promising results in preclinical models and ongoing clinical trials. However, achieving sufficiently high intratumoral sialidase levels without systemic toxicity remains a challenge.
  • 🔗 查看原文

💡 该来源还有 25 条内容,详见 文末

🧪 博客更新 (2条)

详细内容(全部2条)

1. 俄勒冈健康与科学大学科学家利用先进的测序技术开发口腔感染治疗方法

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing
  • 📝 描述:RNA sequencing with nanopore technology helps reveal how oral bacteria regulate genes, form biofilms, and may be targeted with more precise antimicrobial strategies…
  • 🔗 查看原文

2. 纳米孔RNA测序在m6A检测中的基准测试

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing
  • 📝 描述:RNA sequencing with nanopore technology improves m6A modification mapping when paired with calibrated workflows, helping reveal cell-specific RNA regulation in fibroblasts and neurons…
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
RNA-seq7
genome7
sequencing5
tumor4
tumor microenvironment3
ATAC-seq3
ChIP-seq3
immune2
single-cell2
regex:intestin(eal)
transcriptome2
cancer2
Hi-C2
glioma1
carcinoma1
monocyte1
methylation1
metabolomics1
spatially1
bacteria1

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🧬 数据前沿 其他内容 (25条)

📅 报告生成时间:2026-05-07 22:32
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