科研日报 2026-07-02

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📅 Daily Report - 2026-07-02

今日筛选出 136 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: 空间转录组学技术在肿瘤微环境、细胞转化及疾病建模中的应用取得进展,揭示了组织内分子差异与病理进程的关联。

主要方向

  • 肿瘤免疫微环境调控:IGF2BP1促进神经母细胞瘤免疫抑制,Galectin-1驱动髓系增生性肿瘤高炎症。
  • 肿瘤治疗抵抗机制:解析EGFR TKI、化疗耐药,以及免疫疗法耐受的分子基础。
  • 细胞衰老与疾病:探究衰老细胞在卵巢衰退、心肌病及肿瘤进展中的作用。

技术亮点

  • 空间转录组学(Spatial Transcriptomics)和单细胞RNA测序(scRNA-seq)在解析复杂组织微环境和细胞异质性方面发挥关键作用。

🧪 博客更新

今日焦点: 新型AI模型(Graph AI、Mamba、Transformer)正显著提升单细胞RNA测序(scRNA-seq)数据的细胞分类精度和分析效率。

主要方向

  • 利用图神经网络(Graph AI)和Mamba模型改进scRNA-seq的细胞类型分类。
  • 应用Transformer AI模型增强scRNA-seq数据分析,实现更精准、可扩展的生物学发现。

技术亮点

  • Graph AI与Mamba模型的集成,为复杂scRNA-seq数据集提供更优的分类能力。
  • Transformer模型的引入,推动了scRNA-seq分析的精度和可扩展性。

📚 分类浏览

🧬 数据前沿 (134条)

详细内容(前10条)

1.GSE336887 IGF2BP1 在高危神经母细胞瘤中促进免疫抑制性肿瘤微环境,导致其对免疫疗法产生耐药性。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、tumor microenvironment、regex:immuno(logy|therapy|suppression)、resistance
  • 📝 描述:Contributors : Mayura R Dhamdhere ; Chethana P Gowda ; Yuka Imamura ; Hong-Gang Wang ; Todd S Schell ; Vladimir S SpiegelmanSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusIncorporation of the current immunotherapy, GD2-targeting monoclonal antibody into the standard of care has moderately improved clinical outcomes in children with high-risk neuroblastoma (HR-NB), however, the overall survival remains low. More than 50% of patients with HR-NBs are refractory to or eventually develop resistance towards anti-GD2 treatment. HR-NBs in general are known to exhibit low tumor-mutational burden, are immunologically cold and possess an immunosuppressive tumor microenvironment. Understanding the mechanisms of immune evasion may provide novel targets for improving the efficacy of immunotherapies for these immunologically cold HR-NBs. Here, utilizing immunocompetent mouse models of immunologically cold HR-NB, we uncovered a novel function of IGF2BP1 in promoting immune escape of neuroblastoma tumors. We demonstrate that neuroblastoma cell-specific knockdown of IGF2BP1 favorably alters the tumor microenvironment of HR-NBs, turning these “immunologically cold” tumors to an immunogenic type, thereby priming them for anti-GD2 therapy-induced immune responses. Downregulation of IGF2BP1 in NB cells decreased the immunosuppressive T-regulatory and dysfunctional/exhausted CD8 T cells; and promoted the accumulation of effector MHCII+ macrophages at the tumor site. Importantly, knockdown of IGF2BP1 along with anti-GD2 immunotherapy induced a synergistic immunogenic effect and achieved a potent anti-tumor response in HR-NB mouse model, with increased accumulation of effector CD8+ T cells and CD86+ macrophages, but decreased MDSCs in the tumor microenvironment. Thus, disrupting NB cancer cell IGF2BP1-mediated immunosuppression is a potential approach for improving the efficacy of anti-GD2 immunotherapy towards HR-NBs.
  • 🔗 查看原文

2.GSE311200 对晚期或复发性非小细胞肺癌患者在不同治疗方案(包括免疫疗法、EGFR-TKI 和化疗)下循环生物标志物与肿瘤免疫微环境的相关性进行了综合分析。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、immune、regex:immuno(logy|therapy|suppression)
  • 📝 描述:Contributors : Chanida Vinayanuwattikun ; Piyada Sitthideatphaiboon ; Krittiya KorphaisarnSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensThe prospective cohort of advanced or recurrence non-small cell lung cancer in 2 academic centers in Bangkok, Thailand. We enrolled participants who received systemic treatment based on biomarker results, for example, EGFR TKI for sensitizing EGFR mutations. Pretreatment specimens and blood were collected and analyzed for circulating biomarkers, including TIME, i.e., CD8, Treg/FOXP3, and PD-L1 (22C3). Advanced omics platforms, such as RNA sequencing and whole-exome sequencing, are also employed to explain biologic meaningful.
  • 🔗 查看原文

3.GSE324769 空间转录组学揭示与口腔上皮发育不良恶性转化相关的分子差异

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Naren Raja ; Harsh B Pathak ; Amrita Mitra ; Sufi Mary Thomas ; Yong Wang ; Tanya Gibson ; Rong WangSeries Type : OtherOrganism : Homo sapiensBackgroundOral epithelial dysplasia (OED) is a precancerous oral lesion with an increased risk of progression to oral squamous cell carcinoma (OSCC). The molecular mechanisms driving OED progression are still poorly understood. To address this gap, we applied spatial transcriptomics to benign, OED and OSCC samples to uncover molecular drivers of oral carcinogenesis, with a focus on OED transformation.MethodsWe performed spatial transcriptomics on 13 benign, 15 OED (8 with transformation, 7 without), and 14 OSCC biopsies using the NanoString GeoMx Digital Spatial Profiler. Regions of interest were segmented into epithelial and stromal compartments with morphological markers. Gene expression was profiled using the GeoMx cancer transcriptome atlas assay for ~1,800 tumor related genes. Differentially expressed genes (DEGs) from next-generation sequencing were subject to bioinformatic analyses.ResultsDifferentially gene expression analysis between OED with and without transformation revealed eight upregulated and three downregulated genes in epithelial cells, with no significant changes in immune cells. Protein-protein interaction network analysis identified B2M, STAT1, and CD74 as central hub genes. Pathway enrichment analysis suggested interferon and cytokine-mediated immune pathways, along with myeloid and amyloid formation-related pathways, as important contributors to OED transformation. Transcription factor analysis highlighted RELA and RFX as key upstream regulators.ConclusionsMalignant transformation of OED appears to be primarily driven by epithelial-intrinsic activation of interferon and inflammatory signaling pathways rather than overt transcriptional reprogramming of immune cells. These findings suggest that early immune-related alterations in oral carcinogenesis are tumor cell centered and may precede significant changes in immune cell composition.
  • 🔗 查看原文

4.GSE332958 靶向治疗诱导肿瘤消退和靶向治疗耐受性残留黑色素瘤期间免疫细胞的单细胞RNA测序

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、immune、scRNA
  • 📝 描述:Contributors : Chia-Hsin Hsu ; Keng-Jung Lee ; Jingyi Chen ; Leanne R. Donahue ; Jianping Lin ; Danielle Kacaj ; Richard M. White ; Zhong-Yin Zhang ; Andrew C. WhiteSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusSingle-cell RNA sequencing (scRNA-seq) was performed to profile immune cell states in BRAF-mutant melanoma during targeted therapy-induced tumor regression and therapy-tolerant residual disease. CD45⁺ tumor-infiltrating immune cells were isolated from immunocompetent melanoma models treated with BRAF/MEK inhibitors and analyzed by scRNA-seq using the 10x Genomics Chromium platform. Comparative single-cell transcriptomic analysis revealed dynamic remodeling of the tumor immune microenvironment during treatment, including distinct macrophage and NK cell populations associated with therapeutic response and tolerance. Macrophage–NK cell crosstalk and cytokine signaling pathways were found to orchestrate immune activation during tumor regression, whereas immunosuppressive macrophage subsets and reduced NK effector signatures characterized the tolerant state. This dataset provides a comprehensive immune cell–level resource to investigate innate immune dynamics and intercellular communication mechanisms underlying targeted therapy efficacy and resistance in melanoma.
  • 🔗 查看原文

5.GSE332731 利用无线植入式光电子技术在体内对 Cre 调控的基因建模进行局部控制 [空间转录组学]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Trisha Bansal ; Varsha Sreekanth ; Jalees Rehman ; Andrei V KarginovSeries Type : OtherOrganism : Mus musculusEffective modeling of chronic human diseases in vivo requires precise spatiotemporal regulation of molecular processes at defined tissue locations. Optogenetic and optoelectronic tools can provide such control but targeting internal organs such as the lungs remain challenging. To address this, we developed E-LightR-Cre recombinase, enabling precise, spatially restricted gene activation with no dark-state activity and robust blue-light responsiveness. To achieve local activation of E-LightR-Cre in specific organ sites, we engineered wireless, fully implantable optoelectronic devices enabling focal illumination of murine lungs with no discernible organ damage. The size of activated area is controlled by modulating light intensity and duration. Using implanted optoelectronic devices, we activated E-LightR-Cre in a selected area of mouse lungs and achieved local regulation of targeted genes. Light-regulated expression of oncogenic KRas-G12D mutant in mouse lungs induced local formation of oncogenic lesions. These results show that our protein engineering and adaptable optoelectronic approaches enable facile application of optogenetic tools for locally controlled disease modeling in vivo.
  • 🔗 查看原文

6.GSE304087 DNA甲基化谱分析发现簇状原钙黏蛋白的长程表观遗传沉默是脑膜瘤进展的关键决定因素[RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:RNA-seq、epigenetic、methylation
  • 📝 描述:Contributors : Daniel J Merk ; Ghazaleh TabatabaiSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensMeningioma is the most common primary brain tumor in adults, but molecular drivers of progression occurring in a subset of meningiomas are poorly understood. We hypothesized that epigenomic variations are causal for the clinical heterogeneity of meningiomas and may be functionally relevant for disease progression. To test this hypothesis, we performed global DNA methylation profiling of a large cross-sectional cohort and a longitudinal cohort of human meningiomas. Our analysis identifies a DNA hypermethylation signature that is correlated with clinical outcomes and enables more accurate prognostication in intermediate-risk meningiomas than previous classification systems. Analyses of longitudinal high-grade meningioma samples in comparison to clinically benign meningiomas and normal meningeal tissue show convergent contributions, but differing plasticity of copy number variations and DNA hypermethylation along the trajectory of meningioma progression. Systematic analysis of DNA hypermethylation in high-grade meningiomas unravel a tumor suppressive role of clustered protocadherins by regulating b-catenin signaling. Together, our study provides fundamental insights into the molecular mechanisms underlying the heterogeneity of clinically benign and aggressive meningiomas and the microevolutionary adaptation during disease progression.
  • 🔗 查看原文

7.GSE302988 PGAM5通过丙酮酸代谢途径调节乳酸生成以促进非小细胞肺癌进展的机制

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、metabolism、pathway
  • 📝 描述:Contributors : Jianxin Wang ; Guodong HuSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensStudy on the regulation of pyruvate and its metabolites by knocking down PGAM5 through transcriptome analysis
  • 🔗 查看原文

8.GSE280330 体内单细胞核糖体谱分析揭示衰老过程中细胞类型特异性翻译程序 [scRNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:aging、single-cell、scRNA
  • 📝 描述:Contributors : Clara Duré ; Umesh Ghoshdastider ; Ramona Weber ; Peter F Renz ; Fabiola Valdivia-Francia ; Ameya Khandekar ; Federica Sella ; Katie Hyams ; Yigit Merve ; Mark Ormiston ; Homare Yamahachi ; Mitchell Levesque ; Stephanie Ellis ; Ataman SendoelSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusSomatic stem cells are characterized by their low overall protein synthesis rates, a feature implicated in driving their stemness. Yet, how aging reshapes the translational landscape of stem cells and how these changes impact their regenerative capacity remains poorly understood. Here, we present an in vivo single-cell ribosome profiling strategy to monitor tissue-wide translational landscapes of the young and aged mouse skin. By implementing efficient in vivo cell isolation and switching to RNAse I-based ribonuclease for generating ribosomal footprints, we enhance the accessibility of single-cell ribosome profiling and facilitate the evaluation of triplet periodicity, a hallmark of high-quality data. Leveraging this strategy and integrating single-cell RNA sequencing with ribosome profiling, we document the translational landscapes of the major epidermal cell types, outline cell-type-specific translational efficiencies and capture heterogeneity in differentiation commitment among stem cell populations. Notably, we identify a pronounced translational reprogramming of AP-1 subunits specifically in aged epidermal stem cells. Our proof-of-concept study illustrates the power of in vivo single-cell ribosome profiling to map cell-type-specific translational landscapes and offers a scalable strategy for tissue-wide interrogation of translational landscapes at single-cell resolution.
  • 🔗 查看原文

9.GSE271705 MCF10A衍生细胞系中乳腺癌进展过程中组蛋白修饰的整合ChIP-seq和转录组分析

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、ChIP-seq、histone
  • 📝 描述:Contributors : Seth Frietze ; Cong GaoSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensCancer arises from complex epigenetic mechanisms that drive tumorigenesis. Gene regulatory elements play a pivotal role in reprogramming gene expression patterns, facilitating tumor initiation, progression, and metastasis. However, a comprehensive characterization of epigenetic alterations across cancer development remains incomplete, particularly for the spectrum of post-translational histone modifications in the evolution of breast tumors. In this study, we explored the dynamic landscape of epigenetic changes using a breast cancer progression model based on the MCF10A cell line. We integrated ChIP-seq and transcriptomic profiling to investigate the epigenetic heterogeneity across four MCF10A-derived cancer cell lines: normal (MCF10A), HRAS G12V transformed, ductal carcinoma in situ (DCIS), and metastatic (CA1a). Our analysis revealed significant changes in chromatin patterns at regulatory elements, including stage-specific variability in H3K27me3 and H3K9me3-marked heterochromatin domains. These profiles underly the epigenomic changes in each of these cell states to provide insights into human breast cancer progression.
  • 🔗 查看原文

10.GSE271438 癌症相关成纤维细胞通过表观遗传沉默 Decorin 促进结直肠癌的血管生成模拟 [甲基化阵列]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、epigenetic、methylation
  • 📝 描述:Contributors : Yin Zhu ; Yurui LiuSeries Type : Methylation profiling by genome tiling arrayOrganism : Homo sapiensTo investigate the DNA methylation landscape differences between CAFs and NFs in colorectal cancer, we extracted primary fibroblasts from colorectal cancer tissue and para-cancerous tissue for 850K chip analysis.
  • 🔗 查看原文

💡 该来源还有 124 条内容,详见 文末

🧪 博客更新 (2条)

详细内容(全部2条)

1. 图论人工智能和Mamba模型改进了单细胞RNA测序细胞分类

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、single-cell
  • 📝 描述:RNA sequencing combined with graph neural networks and Mamba models improves cell type classification, enabling more accurate analysis of complex single-cell datasets… The post Graph AI and Mamba models improve single-cell RNA sequencing cell classification appeared first on RNA-Seq Blog.
  • 🔗 查看原文

2. Transformer AI 模型如何推进单细胞 RNA 测序

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、single-cell
  • 📝 描述:RNA sequencing is benefiting from Transformer-based AI models that improve analysis of complex single-cell datasets while supporting more accurate and scalable biological discovery… The post How transformer AI models are advancing single-cell RNA sequencing appeared first on RNA-Seq Blog.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
RNA-seq17
cancer16
sequencing15
single-cell15
epigenetic14
immune11
scRNA9
transcriptome9
tumor7
methylation6
resistance5
T cell5
ATAC-seq4
metabolism4
regex:immuno(logytherapy
spatial4
inflammation4
pathway4
regex:intestin(eal)
B cell4

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🧬 数据前沿 其他内容 (124条)

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