科研日报 2026-05-02

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📅 Daily Report - 2026-05-02

今日筛选出 150 条内容,来自 3 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: 空间转录组学揭示了肺部结节病(Sarcoidosis)中前萨泊辛(Prosaposin)作为新型治疗靶点(GSE263088, GSE262998)。

主要方向

  • 肿瘤免疫微环境与治疗:解析肝癌中TAMs与CD8+ T细胞的空间互作(GSE318324),探索NSCLC联合免疫治疗新策略(GSE317309),以及MEK抑制剂在T细胞激活中的作用(GSE311565, GSE311562)。
  • 癌症进展机制与靶点:揭示ZNF25在胶质瘤进展中通过PI3K-AKT信号通路的作用(GSE272124),以及LRMDA对结直肠癌的抑制作用(GSE317858, GSE317857)。
  • 细胞重编程与可塑性:研究工程化T细胞在默克尔细胞癌治疗中的应用(GSE326661),以及单细胞和空间图谱揭示前列腺癌的谱系可塑性与转移(GSE324131)。

技术亮点

  • 空间转录组学:广泛应用于肿瘤、神经退行性疾病和炎症性疾病研究,解析细胞微环境的空间异质性(GSE318324, GSE324131, GSE327284, GSE263088, GSE262998)。
  • 单细胞RNA测序(scRNA-seq):用于研究免疫细胞功能(GSE322626, GSE296052)和肿瘤异质性(GSE326661, GSE324131)。

📊 学点生信

今日焦点: R语言新包grouper最优分组分配提供了自动化解决方案,旨在优化协作学习中的学生分组。

主要方向

  • 自动化生成考虑多种约束条件(如学生能力、偏好等)的最优学生分组。
  • 提升协作学习的教学效果,促进学生对课程内容的深入理解和团队协作能力的培养。

技术亮点

  • 首次提出并实现基于优化算法的R语言包,用于解决协作学习中的复杂分组问题。

🧪 博客更新

今日焦点: 新型脂肪代谢机制被发现,改写了对脂肪组织平衡的传统认知。

主要方向

  • 肠道健康:研究揭示慢性压力与夜间进食对肠道健康双重负面影响。
  • 单细胞数据整合:开发新型自监督学习方法,提升多组单细胞RNA测序数据的准确整合与分析。
  • 脂肪代谢调控:发现关键蛋白在维持脂肪组织健康与平衡中的新功能。

技术亮点

  • scDecorr:一种用于多组单细胞实验自监督对齐的特征解相关表示学习方法,有效降低噪声并保留生物信号。

📚 分类浏览

🧬 数据前沿 (146条)

详细内容(前10条)

1.GSE318324:对切除的肝细胞癌标本进行靶向RNA测序,以表征与PD-L1(+) TAM-CD8(+) T细胞空间相互作用相关的免疫基因表达。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、immune、T cell、sequencing、spatial
  • 📝 描述:Contributors : Takuto Nosaka ; Masahiro Ohtani ; Junki Yamashita ; Yosuke Murata ; Yu Akazawa ; Tomoko Tanaka ; Kazuto Takahashi ; Tatsushi Naito ; Yoshiaki Imamura ; Kenji Koneri ; Takanori Goi ; Yasunari NakamotoSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensThis study investigates immune-related gene expression profiles associated with spatial interactions between PD-L1-positive tumor-associated macrophages (TAMs) and CD8-positive T cells in hepatocellular carcinoma (HCC). RNA was extracted from tumor regions of formalin-fixed paraffin-embedded (FFPE) specimens obtained from eight patients who underwent hepatectomy. Targeted RNA sequencing was performed using custom AmpliSeq panels covering cancer progression– and immunity-related genes. Raw sequencing data and processed gene expression matrices are provided to enable downstream reanalysis.
  • 🔗 查看原文

2.GSE317309 CCL21基因修饰的树突状细胞疫苗与帕博利珠单抗联合应用可诱导非小细胞肺癌的免疫反应

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、immune、vaccine、dendritic cell
  • 📝 描述:Contributors : Michael S Oh ; Aaron Lisberg ; Camelia Dumitras ; Ramin Salehi-Rad ; Linh M Tran ; Kostyantyn Krysan ; Edward B Garon ; Bin Liu ; Steven M DubinettSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiens ; Mus musculusImmune checkpoint inhibitors (ICIs) have transformed treatment for non-small cell lung cancer (NSCLC), but resistance to these therapies is common. We report results from a phase I trial combining intratumoral administration of a CCL21-gene modified dendritic cell (CCL21-DC) vaccine with pembrolizumab in patients with advanced NSCLC. Among 23 patients that received trial therapy, there were no dose-limiting toxicities and a low incidence of treatment-related adverse events. Although no objective responses were observed, 36.8% of patients had a best response of stable disease (SD). Correlative analyses of longitudinal tumor biopsies revealed that disease stability was associated with reduced tumor mutational heterogeneity and increased intratumoral T cell receptor diversity following therapy. Post-treatment tumor biopsies exhibited increased CD4+ T cell infiltration and the presence of novel T cell clones that predominantly possessed CD4+ memory T cell phenotypes. These novel clones experienced greater clonal expansion and a transition towards exhausted phenotypes in SD samples. However, many novel clones failed to persist over time, and immunosuppressive myeloid signaling signatures were identified especially in progressive disease samples. Our findings demonstrated that CCL21-DC vaccination combined with pembrolizumab is safe and can promote antitumor immune responses in a subset of patients. However, efficacy may have been constrained due to limited tumor specificity of the T cell response and an inability to fully reprogram the immunosuppressive tumor microenvironment.
  • 🔗 查看原文

3.GSE272124泛癌分析结合RNA测序发现,ZNF25主要通过调节PI3K-AKT信号通路促进胶质瘤进展。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、glioma、RNA-seq、pathway
  • 📝 描述:Contributors : Xiaohong Yi ; Xianwen Zhang ; Lijun Huang ; Yumei WangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensBackground: ZNF25, a member of zinc finger proteins with KRAB domains family genes, is a transcription factor. Previous reports showed it is a biomarker of ovarian cancer. However, there are rarely reports about ZNF25 in other types of cancer, and its underlying mechanisms are not yet clear. Methods: Based on The Cancer Genome Atlas (TCGA), Genotype-Tissue Expression Project (GTEx), cBioPortal, Human Protein Atlas (HPA), IntOGen, TIMER, TIMER2, TISIDB, MethSurv, TISIDB, and Cistrome Data Browser (CDB) databases, we adopted bioinformatics methods to excavate the potential tumor genomic features of ZNF25, including dissecting the correlation with prognosis, gene mutation, immune cell infiltration, and DNA methylation in different tumors, and evaluated the association with tumor heterogeneity and stemness, and co-expression with Tex cells, chemokines chemokine receptors, and immunomodulators in pan-cancer. Additionally, we knocked down ZNF25 in U87-MG cells and performed RNA-seq analysis, then differential expression genes (DEGs) were further analyzed and visualized, like GO, and KEGG to interpret the biological significance. Results: The results show that ZNF25 has early diagnostic potential and was associated with the immune infiltration of different tumors. ZNF25 is associated with most tumor immune-infiltrating cells in pan-cancer, especially in glioma. Additionally, ZNF25 correlates with DNA methylation, tumor heterogeneity, Tex, and stemness in many types of cancers, like glioma. Besides, our findings demonstrate a close relationship between ZNF25 and mutated IDH1 in gliomas. Furthermore, our experiments showed that ZNF25 is involved in cancer pathways, mainly in PI3K-AKT and MAPK pathways.Conclusion: Through pan-cancer analysis combined with RNA-seq data, we discovered that ZNF25 might influence the progression of glioma mainly via the PI3K-AKT signaling pathway, and suggested that ZNF25 could serve as an indicator for tumor diagnosis, treatment, and prognosis across various types of tumors, including glioma.
  • 🔗 查看原文

4.GSE309857 小胶质细胞 TDP-43 介导髓鞘精细化并抑制小鼠 Tyrobp 隐蔽外显子插入 [空间转录组学]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Anne-Claire Compagnion ; Andranik Ivanov ; Anil Rana ; Felipe Espinoza ; Thomas Sandmann ; Fanny S Martineau ; Katia Monsorno ; Robera Facchineti ; Alessandro Matera ; Lionel Rougé ; Fernando G Ibáñez ; Clarissa Catale ; Mateo Bizzotto ; Sonia Garel ; Michela Matteoli ; Yutaro Kashiwagi ; Ryuta Koyama ; Christian Haass ; Marie-Eve Tremblay ; Dieter Beule ; Ileana Jelescu ; Valerio Zerbi ; Gilbert Di Paolo ; Rosa C PaoliceliSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusTDP-43 proteinopathy is a hallmark of neurodegenerative disorders such as amyotrophic lateral sclerosis and frontotemporal dementia where mislocalization of TDP-43 has been observed in neurons and glial cells. However, the role of TDP-43 in microglia and the consequences of its loss-of-function remain unexplored. Combining magnetic resonance imaging, confocal, and electron microscopy we uncovered structural changes and myelin abnormalities in the early postnatal brain of mice lacking microglial TDP-43. Spatial transcriptomics further revealed an enriched interferon-response signature associated with oligodendrocyte dysfunction. Early microglial TDP-43 depletion resulted in motor deficits in adult mice. Mechanistically, knocking out TDP-43 impaired microglial ability to engulf and degrade myelin. It also led to cryptic exon inclusion in the Tyrobp mRNA, resulting in truncated DAP12 protein, thus causing defective TREM2 signaling. Our findings reveal a novel role for TDP-43 in regulating the TREM2-DAP12 axis in mice, highlighting a previously unrecognized mechanism by which TDP-43 controls microglial function.
  • 🔗 查看原文

5.GSE326661 重编程工程化自体 T 细胞以克服默克尔细胞癌的耐药性 [scRNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、resistance、scRNA
  • 📝 描述:Contributors : Yuta Asano ; Cheng-Jung Sung ; Francesco Mazziotta ; Bo Lee ; Lauren Martin ; Philip D Greenberg ; Aude G ChapuisSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensImmune checkpoint inhibitors (CPIs) have transformed Merkel cell carcinoma (MCC) outcomes, but most patients with MCC develop resistance. We identified TCRMCC1, a highly-avid, HLA-A*02:01-restricted T cell receptor (TCR) targeting the Merkel Cell Polyoma Virus (MCPyV) oncoprotein LTAg15–23. Seven patients with CPI-refractory metastatic MCPyV+ MCC received TCRMCC1-transduced cells (TTCR-MCC1) following lymphodepleting chemotherapy or HLA-enhancing interventions (radiation or IFNg-1b [Actimmune®]), with concurrent CPIs (NCT03747484). TTCR-MCC1 trafficked to tumor sites and expressed a gene expression profile compatible with T cell activation, with tumor regression observed in two patients. However, therapeutic activity was limited by HLA class I silencing, a common mechanism of immune escape in MCC. In one patient, delayed tumor regression coincided with endogenous effector immune activation and restoration of MCC HLA expression, implying robust local responses could reverse HLA silencing. To overcome this barrier, we engineered CD4 and CD8 TTCR-MCC1 to co-express CD8ab and a CD200R-CD28 switch receptor, enabling CD4 T cell engagement and T cell co-stimulation. These modifications enhanced tumor infiltration, increased HLA expression, and improved control of HLAlow MCC in vivo in mice. These findings support the feasibility of TCR-engineered cell therapy for MCPyV+ MCC and provide a blueprint for overcoming immune evasion via targeted localized enhancement of antigen presentation.
  • 🔗 查看原文

6.GSE324131 前列腺癌的单细胞和空间图谱揭示了谱系可塑性和转移的基因模块的组合特性

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、single-cell、spatial
  • 📝 描述:Contributors : Hanbing Song ; Sarah C Hsu ; Julia H Pham ; Yih-An Chen ; Hannah Weinstein ; Matthew R Cooperberg ; Nancy Greenland ; Franklin W HuangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensProstate cancer encompasses a spectrum of disease states driven by complex cellular heterogeneity. To delineate the transcriptional programs underlying lineage plasticity and metastasis, we constructed a comprehensive single-cell atlas of 128 patients, spanning localized, castration-resistant, and metastatic disease. Lineage plasticity was prevalent in localized disease, with subsets of tumor cells adopting distinct basal-like and club-like states. Luminal-like cancer cells also displayed extensive lineage infidelity, defined not by a binary loss of identity but by the combinatorial erosion of luminal gene modules associated with higher grade and stage. In the metastatic setting, gene program association analysis (GPAS) identified a broad induction of cell-cycle gene modules across organ sites as well as an induction of organ-specific gene modules, including osteomimetic signaling in bone, neuro-migratory genes in brain, and erythroid-like transitions in liver. Neuroendocrine prostate cancers (NEPCs) were not monolithic but defined by combinations of NE-associated gene modules including a novel HES6 program. Notably, these modules were detected at intermediate levels in localized samples, suggesting molecular plasticity precedes histological transformation. We also developed a refined NE signature that could distinguish NEPC tumors more accurately than previously published signatures. Within the tumor microenvironment (TME), we observed an elevation of pro-inflammatory Th17 T-cells in African American patients and identified a rare Schwann cell population. Finally, we present PCformer, a transformer-based foundation model trained on >500,000 cells to automate cell-state classification. Together, this comprehensive atlas demonstrates the complex nature of gene modules underlying lineage infidelity and plasticity in cancer cells and highlights distinct immune and stromal populations within the tumor ecosystem.
  • 🔗 查看原文

7.GSE322626 单细胞 RNA 测序数据表明,CD40 促进心肌梗死后巨噬细胞的吞噬作用。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、sequencing、single-cell
  • 📝 描述:Contributors : Linlin Zhang ; Canbiao Wang ; Longjiang ZhangSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusCD40 expressed on the macrophage membrane is recognized as one of the characteristic biomarkers for their inflammatory phenotype. We demonstrated that macrophage CD40 functionally promotes post-myocardial infarction (MI) repair. To elucidate the role of CD40 in the post-MI repair process, we dissected infarct and border zones from the hearts of wild-type (WT) and CD40 knockout (KO) mice at 3 days post-MI. Mononuclear macrophages (CD45⁺CD11b⁺CD64⁺) were isolated via flow cytometry and subjected to single-cell RNA sequencing analysis. This study establishes that CD40 plays a critical role in macrophage efferocytosis. Furthermore, analysis of scRNA-seq data led to the identification of developmental precursor cells of repair-phenotype macrophages.
  • 🔗 查看原文

8.GSE317858 LRMDA抑制结肠炎症、结直肠癌和细菌感染[CRC_RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、inflammation、regex:bacter(ia|ial|ium)
  • 📝 描述:Contributors : Liping Yang ; Yuyao Guo ; Bikun XiaoSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusThe leucine-rich melanocyte differentiation-associated protein (LRMDA), a recently characterized intracellular trafficking regulator, plays a critical yet unexplored role in intestinal homeostasis 1. Here, we show that LRMDA expression is downregulated in the inflamed mucosa of patients with inflammatory bowel disease (IBD) and in colorectal tumor tissues. Similarly, we demonstrate that LRMDA deficiency exacerbates dextran sulfate sodium (DSS)-induced colitis, promotes tumorigenesis in azoxymethane (AOM)/DSS and AOM/Vil-Cre;Trp53fl/fl (VP) models and aggravates enteric pathogen infection. Mechanistically, LRMDA may positively regulate the normal exocytosis of mucins from intestinal goblet cells into the intestinal lumen via the dynein-dynactin-microtubule pathway by interacting with the ICD domain of DCTN1. These findings identify LRMDA as a novel regulator of intestinal mucosal barrier function.
  • 🔗 查看原文

9.GSE317857 LRMDA抑制结肠炎症、结直肠癌和细菌感染[Colitis_​​RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、inflammation、regex:bacter(ia|ial|ium)
  • 📝 描述:Contributors : Liping Yang ; Yuyao Guo ; Bikun XiaoSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusThe leucine-rich melanocyte differentiation-associated protein (LRMDA), a recently characterized intracellular trafficking regulator, plays a critical yet unexplored role in intestinal homeostasis 1. Here, we show that LRMDA expression is downregulated in the inflamed mucosa of patients with inflammatory bowel disease (IBD) and in colorectal tumor tissues. Similarly, we demonstrate that LRMDA deficiency exacerbates dextran sulfate sodium (DSS)-induced colitis, promotes tumorigenesis in azoxymethane (AOM)/DSS and AOM/Vil-Cre;Trp53fl/fl (VP) models and aggravates enteric pathogen infection. Mechanistically, LRMDA may positively regulate the normal exocytosis of mucins from intestinal goblet cells into the intestinal lumen via the dynein-dynactin-microtubule pathway by interacting with the ICD domain of DCTN1. These findings identify LRMDA as a novel regulator of intestinal mucosal barrier function.
  • 🔗 查看原文

10.GSE280461 成纤维网状细胞驱动交感神经再生以适应肿瘤细胞引起的淋巴结扩张

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、lymph、regex:lymph(o|atic)?
  • 📝 描述:Contributors : Jun Li ; Hui LiSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusLymph nodes (LNs) are peripheral immune organs innervated by sympathetic and sensory nerves. Upon diverse stimuli, LNs undergo substantial structural reorganization and volume expansion. However, the adaptation of innervation to these changes remains poorly understood. In this study, whole-mount 3D imaging revealed that sympathetic nerve fibers, rather than sensory nerves, exhibited significant elongation and increased branching over time during tumor-induced lymph node enlargement (TLNE). Single-nucleus RNA Sequencing (snRNA-seq) analysis demonstrated that throughout TLNE, fibroblastic reticular cells (FRCs) are activatedand engage in neuro-related signaling pathways while secreting substantial amounts of hepatocyte growth factor (HGF). Moreover, the stiffness of the extracellular matrix (ECM) in LNs increased in the context of TLNE, further supporting FRC activation and HGF secretion. The role of HGF in promoting sympathetic nerve fiber outgrowth was confirmed by administering specific HGF inhibitors or using adeno-associated virus (AAV)-mediated HGF silencing. Collectively, HGF secreted by FRCs plays a pivotal role in TLNE, triggering adaptive sympathetic nerve outgrowth and reinnervation within LNs, providing novel insights into neuro-stromal-immune system crosstalk.
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💡 该来源还有 136 条内容,详见 文末

📊 学点生信 (1条)

详细内容(全部1条)

1. grouper:用于最优分组分配的 R 包

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:R package
  • 📝 描述:Introduction Universities are increasingly using collaborative learning pedagogies, which can benefit learners through deeper understanding of course content and teamwork skills. However, the realisation of these sought-after benefits depend on how educators assign learners to groups. Educators have formulated various mathematical models to perform this assignment. Some have developed developed … Continue reading: grouper: An R package for Optimal Group Assignment
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🧪 博客更新 (3条)

详细内容(全部3条)

1. 压力和深夜进食会对你的肠胃造成“双重打击”。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:gut、regex:gut(-?microbiome)?
  • 📝 描述:Chronic stress is already tough on your gut—but new research suggests late-night eating could make things even worse. Scientists analyzing thousands of people found that those under high stress who also ate a large portion of their calories after 9 p.m. were far more likely to suffer from constipation and diarrhea. The combination appears to hit the gut twice, not only disrupting digestion but also reducing the diversity of beneficial gut bacteria.
  • 🔗 查看原文

2. scDecorr——基于特征去相关的表征学习方法,能够实现多个单细胞实验的自监督对齐。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:single-cell
  • 📝 描述:RNA sequencing analysis with scDecorr improves integration of single-cell datasets by reducing noise and preserving biological signals, enabling more accurate clustering and…
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3. 一项惊人的肥胖症发现改写了数十年来关于脂肪代谢科学的认知

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:metabolism
  • 📝 描述:A key protein involved in fat metabolism has been found to do more than scientists once thought. Instead of just releasing fat, it helps maintain healthy fat tissue and balance in the body. When it’s missing or disrupted, the results can be surprisingly harmful. This finding reshapes how researchers think about obesity and metabolic disease.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
cancer21
RNA-seq18
metabolic17
sequencing16
epigenetic15
carcinoma10
single-cell8
spatial8
immune8
scRNA8
transcriptome8
resistance6
genome5
ATAC-seq5
regex:intestin(eal)
tumor5
T cell4
inflammation4
ChIP-seq4
Alzheimer3

📎 更多内容

🧬 数据前沿 其他内容 (136条)

📅 报告生成时间:2026-05-01 22:09
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