科研日报 2026-08-02

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📅 Daily Report - 2026-08-02

今日筛选出 113 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: 空间组学与蛋白质组学整合分析揭示卵巢癌早期新机制;CD36介导的反应性小胶质细胞脂质积累驱动视网膜退化。

主要方向

  • 癌症研究:卵巢癌、乳腺癌、肝细胞癌、小儿肾上腺皮质癌、胰腺导管腺癌等。
  • 免疫与炎症:巨噬细胞VISTA在同种异体组织损伤中的作用,T细胞抗肿瘤免疫调控。
  • 基因组学与表观遗传学:三维基因组组织、DNA甲基化、染色质重塑、CpG超甲基化。

技术亮点

  • 空间组学技术(Spatial Transcriptomics, Visium HD)与单细胞测序(scRNA-seq)的广泛应用。
  • RNA-seq、ATAC-seq、ChIP-seq等多组学联合分析。

🧪 博客更新

今日焦点: MIRACLE 首次实现单细胞图谱的持续学习更新,有效整合多模态RNA测序数据,推动细胞图谱的动态演进。

主要方向

  • 持续整合新型多模态RNA测序数据集。
  • 实现单细胞图谱的动态、高效扩展。

技术亮点

  • MIRACLE 算法支持对现有单细胞图谱进行增量式学习和更新。

📚 分类浏览

🧬 数据前沿 (112条)

详细内容(前10条)

1.GSE305176 细胞类型分辨的空间蛋白质组学和转录组学整合揭示早期卵巢癌的新机制

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、spatial、transcriptomics、proteomics
  • 📝 描述:Contributors : Andreas Metousis ; Hilary A Kenny ; Aasa Shimizu ; Lisa Schweizer ; Shani Ben-moshe ; Agnes Bilecz ; Rahul Krishnan ; Jingwen Zhang ; Isabel Alcazar ; Lucy Kelliher ; Mallika Ravi ; Tejas Samantarey ; Sabrina Richter ; Yan Li ; Jiying Wang ; Sophia Steigerwald ; Fabian J Theis ; Florian A Rosenberger ; Thierry M Nordmann ; Seiko D Yamada ; Ricardo Lastra ; Matthias Mann ; Ernst LengyelSeries Type : OtherOrganism : Homo sapiensHigh-grade serous carcinoma (HGSC) is the most common ovarian cancer subtype, typically diagnosed at late stages with poor prognosis. Understanding early molecular events driving HGSC progression is crucial for early-stage cancer detection and development of effective treatment stategies. We performed and integrated spatial cell-type resolved proteomics and paired transcriptomics across 25 women with precursor lesions of the fallopian tube and/or HGSC. Epithelial cell signatures revealed early activation of SUMOylation machinery, increased ATR and Wnt signaling, and enhanced MHC-I antigen presentation along the disease trajectory. The stroma exhibited extracellular matrix (ECM) remodeling and interferon-mediated inflammation. Serous tubal intraepithelial carcinomas (STICs) in cancer patients contained a pro-coagulative signature and reduced APOA1/2 compared to STICs in individuals without cancer. Functional studies confirmed the role of epithelial-derived TRIP13 and SUMOylation, and cancer-associated fibroblast-derived SULF1 and BGN in HGSC progression. These findings provide unique molecular insights into HGSC pathogenesis and identify potential new therapeutic targets for intervention.
  • 🔗 查看原文

2.GSE301933 CD36介导的反应性小胶质细胞脂质积累通过Nlrp3-IL-1β通路驱动视网膜变性[空间转录组学]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:spatial、spatial transcriptomics、transcriptomics、pathway
  • 📝 描述:Contributors : Tian Zhou ; Ziqi Yang ; Biyan Ni ; Hong Zhou ; Yang Zhou ; Jingpeng Li ; Minglu Ma ; Huaicheng Wang ; Peng An ; Huiyi Xu ; Xiaojing Lin ; Shiya Lin ; Shida Chen ; Lixia Lin ; Wei Yi ; Xialin Liu ; Chang HeSeries Type : OtherOrganism : Mus musculusLipid accumulation in microglia through CD36 enhances Nlrp3 inflammasome activation, contributing to retinal neurodegeneration.
  • 🔗 查看原文

3.GSE300717 RNA-seq 和 ATAC-seq 分析 5-氮杂胞苷处理的 HepG2 细胞揭示了肝细胞癌中 BFL-1 和 SQOR 的表观遗传学重新激活

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、RNA-seq、ATAC-seq、epigenetic
  • 📝 描述:Contributors : Wonjin Woo ; Lark Kyun KimSeries Type : Expression profiling by high throughput sequencing ; Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensHepatocellular carcinoma (HCC) remains a major therapeutic challenge with poor prognosis due to treatment resistance. Epigenetic silencing of tumor suppressor genes through promoter hypermethylation contributes to oncogenesis and resistance to cell death stimuli. We employed low-concentration 5-azacytidine (5-AZA) treatment to identify epigenetically silenced genes that modulate cell death susceptibility in HepG2 hepatocellular carcinoma cells without inducing baseline cytotoxicity. HepG2 cells were treated with 0, 2, and 10 μM 5-azacytidine for 4 days, followed by integrative RNA-seq and ATAC-seq analysis to characterize transcriptomic changes and chromatin accessibility patterns. This approach revealed coordinated promoter opening and transcriptional reactivation of methylation-silenced genes, particularly BFL-1 (BCL2A1) and SQOR, whose reactivation enhanced cell death susceptibility to TNF-α/CHX and sorafenib treatments. Our findings provide mechanistic insights into epigenetic vulnerabilities in HCC and demonstrate the utility of multi-omics approaches for identifying therapeutically tractable targets for precision epigenetic editing strategies.
  • 🔗 查看原文

4.GSE296517 探究吉西他滨联合聚焦超声热消融治疗乳腺癌的协同潜力:基于空间转录组学的BR54试验研究

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Awndre Gamache ; Ana Oliveira ; Timothy N BullockSeries Type : OtherOrganism : Homo sapiensBreast tumors frequently exhibit resistance to immunotherapy due to their immunosuppressive tumor microenvironment (TME). Preclinical evidence indicates that combining thermal high-intensity focused ultrasound (T-FUS) with the chemotherapeutic gemcitabine (GEM) can significantly alter this TME, promoting recruitment and activation of antitumor immune cells and facilitating durable, T cell–mediated tumor control. We hypothesize that GEM preconditioning enhances T-FUS-induced inflammatory responses by reducing anti-inflammatory cell abundance in the transition zone, thereby amplifying the infiltration and activation of effector immune cells.Leveraging the ongoing BR54 clinical trial (NCT04796220), we analyzed resected breast cancer specimens, collected approximately 14 days post-T FUS treatment, with or without prior GEM pretreatment. Using NanoString’s CosMx Spatial Molecular Imager and 1000-plex RNA panel, we performed spatially-resolved gene transcription profiling within histologically defined regions, including FUS-induced thermal lesions and adjacent tumor areas. Our analysis focused on quantifying myeloid cell, T cell, and NK cell signatures, evaluating effector molecule gene expression, and assessing immunosuppressive-to-effector cell ratios.Comparative analyses between FUS-treated patient samples (with or without GEM pretreatment) and archival untreated controls, as well as pre- to post-treatment biopsy comparisons, were conducted to evaluate therapy-induced remodeling of the TME. This project aims to elucidate the potential synergistic effects of GEM combined with T-FUS in breast cancer and establish the CosMx platform as a robust tool for integrated spatial multiomics analysis in clinical oncology research.
  • 🔗 查看原文

5.GSE326618 人体单细胞三维基因组组织和DNA甲基化图谱

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:single-cell、genome、methylation
  • 📝 描述:Contributors : Jingtian Zhou ; May Wu ; Rosa G Castanon ; Anna Bartlett ; Ben Clock ; Samantha Marcotte ; Joseph R Nery ; Michelle Liem ; Naomi Claffey ; Lara Boggeman ; Cesar Barragan ; Rafael Arrojo e Drigo ; Annika Weimer ; Johnathan Cooper-Knock ; Sai Zhang ; Michael P Snyder ; Carolyn O’Connor ; Chongyuan Luo ; Jesse R Dixon ; Joseph R EckerSeries Type : Methylation profiling by high throughput sequencing ; OtherOrganism : Homo sapiensHigher-order chromatin structure and DNA methylation are critical for gene regulation, but how these vary across the human body remains unclear. We performed multiomic profiling of three-dimensional (3D) genome structure and DNA methylation for 86,689 single nuclei across 16 tissues, identifying 35 major and 206 cell subtypes. We revealed extensive changes in CG and non-CG methylation across cell types and characterized 3D chromatin structure at an unprecedented cellular resolution. Extensive discrepancies exist between cell types delineated by DNA methylation and genome structure, which indicates that the role of distinct epigenomic features in maintaining cell identity may vary by lineage. This study expands our understanding of the diversity of DNA methylation and chromatin structure and offers a reference for exploring gene regulation in human health and disease.
  • 🔗 查看原文

6.GSE341526 苍术内酯III通过抑制ACT1/TRAF6/NF-κB介导的IL-17通路调节肠-肝轴,从而减轻顺铂诱导的急性肝损伤

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:pathway、gut、regex:gut(-?microbiome)?
  • 📝 描述:Contributor : Guoyin KaiSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusIntroduction: Cisplatin (DDP) is a highly effective and broad-spectrum chemotherapeutic agent. However, its clinical application is limited by severe hepatotoxicity. Currently available hepatoprotective agents are often associated with insufficient efficacy or side effects. Therefore, developing new hepatoprotective agents that are highly efficient and low in toxicity is urgent. Objectives: Atractylodes macrocephala Koidz. is a well-known traditional Chinese medicine for strengthening the spleen function. According to the theory of traditional Chinese medicine, “When liver disease occurred, the spleen should be strengthened first” suggests that A. macrocephala Koidz. might possess hepatoprotective properties. Therefore, this study focuses on the molecular mechanism by which the active factors of A. macrocephala Koidz. exert their liver-protective effects. Methods: Animal experiments were adopted to screen the active factors of A. macrocephala Koidz. Multi-omics integrated analysis, including gut microbial diversity, transcriptomics, and metabolomics, combined with fecal microbiota transplantation (FMT) experiments were performed to clarify the mechanism of liver-protective effects of atractylenolide III (AT-III). Results: We found that AT-III-derived from A. macrocephala Koidz. significant decreased ALT, AST levels and hepatic pathological symptoms in DDP-induced acute liver injury (ALI). AT-III alleviated DDP-induced ALI via the “gut-liver axis” by inhibiting the ACT1/TRAF6/NF-κB-mediated IL-17 signaling pathway. Eight distinct microbial species, including Parabacteroides and Alloprevotella, were identified with significant differences. Besides, metabolite N6-(1,2-dicarboxyethyl)-AMP was identified as a novel biomarker for hepatotoxicity. Meanwhile, the FMT results indicated that the intestinal microbiota has a better alleviating effect on ALI than the metabolites of the intestinal microbiota.
  • 🔗 查看原文

7.GSE338463 成人发病型肠道神经节细胞减少症的临床和单细胞测序特征

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、single-cell、regex:intestin(e|al)
  • 📝 描述:Contributors : Ran Zhen ; Zhang Yuanchuan ; Chen Quanyu ; Wang Xinping ; Feng SiyuanSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensHypoganglionosisis a rare motility disorder characterized by a significant reduction in enteric ganglion cells.scRNA-seq indicated immune microenvironment remodeling in the lesioned bowel segment, characterized by an increased proportion of plasma cells. These plasma cells exhibited features of endoplasmic reticulum stress, activation of the unfolded protein response pathway, and enrichment in immune regulatory functions. B cells and T cells also showed enrichment in immune-related pathways.
  • 🔗 查看原文

8.GSE338333 巨噬细胞 VISTA 在同种免疫组织损伤期间抑制炎症和抗原呈递程序 [RNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、antigen、RNA-seq
  • 📝 描述:Contributors : Lifei Liang ; Rui Shi ; Cuidi Xu ; Xiaohan Yu ; Maoxin Liao ; Tongyu Zhu ; Ruiming Rong ; Jiangang Hou ; Dong Zhu ; Cheng YangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensMacrophage inflammatory plasticity is a central determinant of immune-mediated tissue injury, yet the intrinsic checkpoint mechanisms that restrain inflammatory macrophage programming remain incompletely defined. Here, using acute cardiac allograft rejection as an alloimmune tissue-injury model, we found that Vsir, encoding V-domain Ig suppressor of T-cell activation (VISTA), was preferentially expressed in graft macrophages but declined as macrophages acquired inflammatory and antigen-presenting states. Single-cell RNA sequencing and pseudotime analysis revealed that VISTA downregulation accompanied macrophage progression from reparative/resident-like states toward inflammatory programs. In vitro, VISTA overexpression intrinsically restrained pro-inflammatory macrophage polarization, reduced inflammatory cytokine expression, and limited the induction of antigen-presenting molecules including MHC-II and CD80, thereby attenuating macrophage-driven CD4⁺ T-cell proliferation. Integrative CUT&Tag and RNA-seq analyses further showed that VISTA overexpression was associated with reduced H3K4me3 enrichment at inflammatory regulatory loci, including TRAF5 and CHDH, together with transcriptional repression of NF-κB-, TNF-, MAPK-, and IL-17-associated inflammatory programs. In vivo F4/80 promoter-directed Vsir restoration shifted intragraft macrophages away from inflammatory polarization, reduced T-cell accumulation, and attenuated early rejection-associated tissue injury. Together, these findings identify VISTA as an intrinsic regulator of macrophage inflammatory programming and point to H3K4me3-associated chromatin remodeling as a regulatory layer linked to VISTA-mediated inflammatory restraint.
  • 🔗 查看原文

9.GSE336699 肥大细胞 St8sia1-GD3 轴作为糖表观遗传检查点驱动心脏适应不良性重塑 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cardiac、RNA-seq、epigenetic
  • 📝 描述:Contributors : Changzuan Zhou ; Lisheng Fu ; Tianyou Yuan ; Fangfang Li ; Fanhuan Tang ; Songwen Chen ; Jun LiSeries Type : Expression profiling by high throughput sequencingOrganism : Rattus norvegicusPathogenical immune-cardiac crosstalk underlies maladaptive remodeling in chronic heart failure, yet therapies directly targeting this axis are lacking. Glycoconjugates, which are crucial for signal transduction and extracellular matrix integrity, represent an underexploited therapeutic avenue. This study sought to define the role of glycoconjugate-metabolizing enzymes at the immune-cardiac interface and evaluate their translational potential. We performed integrative analyses of bulk and single-cell RNA sequencing data from failing human and mouse hearts. Employing mouse models of pressure overload (transverse aortic constriction, TAC) and ischemia-reperfusion (IR), we utilized global and mast cell (MC)-specific gene deletion, bone-marrow chimeras, and pharmacologic neutralization. Mechanistic insights were gained through multi-omics profiling, including RNA-seq, ATAC-seq, and CUT&Tag.
  • 🔗 查看原文

10.GSE316779 CpG 高甲基化和 WNT/AP-1 协同作用定义了高危儿童肾上腺皮质癌的表观遗传图谱和临床亚组 [Visium HD]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、Visium、epigenetic
  • 📝 描述:Contributors : Victoria E Fincke ; Mauice Loßner ; Marina Kunstreich ; Nic G Reitsam ; Irmengard Sax ; Marlena Mucha ; Felix Dorn ; Lorenz C Helmschrott ; Maria D Hernandez Ramirez ; Sebastian Dintner ; Konstantin Okonechnikov ; Martin Sill ; Ina Oehme ; Heike Peterziel ; Enrique Blanco-Carmona ; Eva Sipos ; Stefan Wudy ; Christoph Slavetinsky ; Jörg Fuchs ; Bruno Märkl ; Eva Jüttner ; Christian Vokuhl ; Michael C Frühwald ; Antje Redlich ; Stefan Pfister ; Matthias Schlesner ; Rainer Claus ; Michaela Kuhlen ; Pascal D JohannSeries Type : OtherOrganism : Homo sapiensTo investiagte the cellular heterogenity one sample from each DNA methylation-based subgroup was investiagted using the Visium HD platform by 10x Genomics.
  • 🔗 查看原文

💡 该来源还有 102 条内容,详见 文末

🧪 博客更新 (1条)

详细内容(全部1条)

1. MIRACLE 通过持续学习使单细胞图谱保持最新状态。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:single-cell
  • 📝 描述:RNA sequencing datasets can now be continually integrated using MIRACLE, enabling cell atlases to grow efficiently as new multimodal data become available…
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
RNA-seq26
cancer15
pathway9
immune9
single-cell8
sequencing8
T cell7
epigenetic6
ChIP-seq6
carcinoma6
genome5
ATAC-seq5
metabolism5
metabolic4
scRNA4
transcriptome4
macrophage4
methylation3
regex:intestin(eal)
antigen3

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🧬 数据前沿 其他内容 (102条)

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