科研日报 2026-04-01

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📅 Daily Report - 2026-04-01

今日筛选出 118 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: 本期研究亮点包括通过单细胞及空间转录组学揭示基因疗法相关视网膜炎症的分子机制(GSE304621, GSE304504),以及空间分析发现促进肾细胞癌向肉瘤样转化的新型炎症肿瘤过渡状态(GSE299598, GSE299368)。

主要方向

  • 癌症免疫治疗与肿瘤微环境:解析PD-1阻断疗法中肿瘤细胞与巨噬细胞的相互作用(GSE325746),及BCG疗法对高风险膀胱癌中巨噬细胞调控T细胞状态的影响(GSE322495)。
  • 肿瘤发生与进展的分子机制:研究 HIF2α、YAP/TAZ 和 AP-1 在透明细胞肾细胞癌中的作用(GSE295181),及POFUT1在胶质瘤中的预后和治疗靶点价值(GSE316535)。
  • 肠道菌群与代谢/免疫:探讨高蛋白饮食对睡眠剥夺诱导的心脏损伤和肠道菌群的影响(GSE262679),以及高脂饮食衍生的微生物代谢物对肠道上皮细胞的影响(GSE302244, GSE302243)。

技术亮点

  • 空间转录组学(Spatial Transcriptomics/GeoMx)在肿瘤异质性及微环境研究中的广泛应用。
  • 单细胞RNA测序(scRNA-seq)在解析细胞间相互作用和复杂生物学过程中的关键作用。

🧪 博客更新

今日焦点: 长读长RNA测序技术(Long-read RNA sequencing)首次实现了全长转录本异构体的解析,为深入理解可变剪接提供了前所未有的视角。

主要方向

  • 揭示基因调控机制
  • 阐明疾病发生机理

技术亮点

  • 全长转录本测序
  • 提升可变剪接研究精度

📚 分类浏览

🧬 数据前沿 (117条)

详细内容(前10条)

1.GSE304621 非人灵长类动物基因治疗相关视网膜炎症的单细胞和空间转录组分析 [scRNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:inflammation、single-cell、scRNA、spatial
  • 📝 描述:Contributors : Célia Sourd ; Joel Quinn ; Molly C John ; Cristina Martinez-Fernandez de la Camara ; Lakshanie Wickramasinghe ; Moustafa Attar ; Hoda Shamsnajafabadi ; Ahmed Salman ; Sally A Cowley ; Calliope Dendrou ; Robert E MacLaren ; Jasmina Cehajic-Kapetanovic ; Kanmin XueSeries Type : Expression profiling by high throughput sequencingOrganism : Macaca mulattaAdeno-associated viral (AAV) vectors are rapidly advancing as gene therapies for inherited and common retinal disorders, but gene therapy-associated uveitis (GTAU) limits their broader application. To investigate the primate ocular immune response, we administered subretinal AAV gene therapy to two non-human primates (NHPs): NHP1 received AAV2-CAG-hRPE65 (voretigene neparvovec) bilaterally at clinical dose; NHP2 received AAV8-GRK1-hRPGRco alongside an analogous mScarlet reporter vector in separate blebs. Longitudinal assessments over three months included multimodal imaging, electroretinography and cytokine profiling, followed by immunohistological, single-cell and spatial transcriptomic analyses of retinal punches. Both therapies were well-tolerated, with preserved retinal structure and function. Single-cell RNA-sequencing revealed that the AAV8 vector transduced 80% of cones/rods in treated areas, while AAV2 targeted 30% of retinal pigment epithelium (RPE)/rods. Transgene expression did not correlate with apoptotic markers. Persistent immune infiltration (dominated by myeloid and T cells) suggested a type 1 cell-mediated response. Adjunctive intravitreal anti-TNFα (adalimumab) did not appear to mitigate this anti-viral response. Spatial analysis highlighted microglia migration to the subretinal space, consistent with upregulated cytokines (MCP-1/CCL2, IP-10/CXCL10, IL-8/CXCL8, IL-6), which implicate monocytic phagocytes in driving local inflammation. These findings elucidate the mechanism of GTAU and identify potential therapeutic targets to prevent immune-mediated complications in retinal gene therapy.
  • 🔗 查看原文

2.GSE325746 肿瘤内在的PHGDH抑制重塑巨噬细胞表观遗传程序,使结直肠癌对PD-1阻断剂敏感

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、macrophage、epigenetic
  • 📝 描述:Contributors : Jieping Qiu ; Jing Bai ; Xuelei MaSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusMetabolic reprogramming in tumor cells profoundly shapes the tumor microenvironment (TME) and limits the efficacy of immunotherapy in colorectal cancer (CRC). However, how tumor-intrinsic metabolic alterations orchestrate immune remodeling remains poorly understood. Here, we identify phosphoglycerate dehydrogenase (PHGDH), a key enzyme in the serine biosynthesis pathway, as a critical metabolic regulator of antitumor immunity. Pharmacological inhibition and genetic suppression of PHGDH significantly enhanced the therapeutic response to PD-1 blockade in CRC models. Integrated single-cell transcriptomic analyses revealed that PHGDH inhibition reprograms tumor metabolism, leading to reduced α-ketoglutarate (α-KG) levels in the TME and subsequent epigenetic remodeling of tumor-associated macrophages. Mechanistically, α-KG depletion suppresses KDM5B activity, maintains H3K4me3 enrichment at STAT1 target promoters, and activates JAK–STAT1 signaling, thereby promoting macrophage inflammatory polarization with augmented antigen-presenting capacity. These reprogrammed macrophages promote CD8+ T cell infiltration and cytotoxic function, ultimately amplifying antitumor immunity and sensitizing tumors to ICB. Consistently, clinical analyses demonstrate that low PHGDH expression correlates with an immune-active phenotype and improved immunotherapy outcomes. Collectively, our findings uncover a tumor–macrophage metabolic–epigenetic crosstalk that governs immune responsiveness and highlight PHGDH as a promising therapeutic target and candidate biomarker for immunotherapy in CRC.
  • 🔗 查看原文

3.GSE299598 空间分析揭示了一种新的炎症性肿瘤过渡状态,该状态促进巨噬细胞驱动的肉瘤样肾细胞癌的诱导 [GeoMx]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、carcinoma、macrophage、spatial
  • 📝 描述:Contributors : Allison May ; Evan KellerSeries Type : OtherOrganism : Homo sapiensSarcomatoid renal cell carcinoma (sRCC) is an aggressive trans-differentiation of epithelioid clear cell RCC (ccRCC) tumors that shows heightened response to immunotherapy. The underlying biology leading to sarcomatoid transformation and mechanisms contributing to immunotherapy response are not well understood. Novel single cell spatial techniques were used in ccRCC and sRCC tumors from 40 patients to understand the spatial sRCC transformation and corresponding immune changes. A transcriptional transition state in epithelioid ccRCC cells along a continuum to mesenchymal sRCC was identified which expresses high levels of pro-inflammatory cytokines and an immune infiltrate. In vitro studies demonstrated that M2-like macrophages, recruited to the tumor by the transition state, induce full transition to the sarcomatoid state. A combination of increased PD-L1 expression and T cells recruited by the transition state was observed consistent with the increased immunotherapy response. This study enriches our understanding of the mechanisms leading to development and immune responsiveness of sRCC paving the way for novel approaches to diminish RCC progression.
  • 🔗 查看原文

4.GSE299368 空间分析揭示了一种新的炎症性肿瘤转化状态,该状态促进巨噬细胞驱动的肉瘤样肾细胞癌的诱导。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、carcinoma、macrophage、spatial
  • 📝 描述:Contributors : Allison May ; Evan KellerSeries Type : OtherOrganism : Homo sapiensSarcomatoid renal cell carcinoma (sRCC) is an aggressive trans-differentiation of epithelioid clear cell RCC (ccRCC) tumors that shows heightened response to immunotherapy. The underlying biology leading to sarcomatoid transformation and mechanisms contributing to immunotherapy response are not well understood. Novel single cell spatial techniques were used in ccRCC and sRCC tumors from 40 patients to understand the spatial sRCC transformation and corresponding immune changes. A transcriptional transition state in epithelioid ccRCC cells along a continuum to mesenchymal sRCC was identified which expresses high levels of pro-inflammatory cytokines and an immune infiltrate. In vitro studies demonstrated that M2-like macrophages, recruited to the tumor by the transition state, induce full transition to the sarcomatoid state. A combination of increased PD-L1 expression and T cells recruited by the transition state was observed consistent with the increased immunotherapy response. This study enriches our understanding of the mechanisms leading to development and immune responsiveness of sRCC paving the way for novel approaches to diminish RCC progression.
  • 🔗 查看原文

5.GSE290670 空间转录组分析揭示乳腺癌浸润性小叶癌的分子特征。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、carcinoma、spatial、transcriptome
  • 📝 描述:Contributors : Momoko Tokura ; Jun Nakayama ; Yusuke YamamotoSeries Type : OtherOrganism : Homo sapiensThese samples were collected for spatial transcriptome analysis of invasive lobular carcinoma of the breast (ILC). We analyzed differences in the molecular profiles of classical ILCs (C-ILCs) and polymorphic ILCs (P-ILCs). We obtained transcriptome data from ● different spots. The cell type of each spot was inferred from copy number changes and gene expression data of human tumors by SpaCET. There were 11 cell types, with cancer-dominant and CAF-dominant spots accounting for the majority. Analysis of canonical pathways and upstream regulators by IPA indicated that the cell cycle is upregulated in P-ILC cancer-dominant spots than in C-ILC cancer-dominant spots. Furthermore, EMT and angiogenesis were upregulated in P-ILC stroma-dominant spots than in C-ILC stroma-dominant spots.
  • 🔗 查看原文

6.GSE262679 High-protein diet alleviate cardiac damage, adipose tissue inflammation, and alterations in the gut microbiota induced by chronic sleep fragmentation

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:inflammation、cardiac、gut、regex:gut(-?microbiome)?
  • 📝 描述:Series Type : Expression profiling by high throughput sequencingOrganism : Mus musculusBackground: Sleep is fundamental to growth, immune function, and overall health. We initiate our study to elucidate the impact of sleep fragmentation (SF) on the cardiac function, gut microbiome diversity, and the transcriptomic profile of inguinal white adipose tissue (iWAT) in mice, as well as the regulatory role of a high protein diet. Methods: We constructed chronic SF and high protein diet intervention mouse models for this research. Cardiac structure and function were evaluated by echocardiographic analyses. Gut microbiota composition was determined by 16s rDNA amplicon sequencing. Transcriptome alterations of iWAT were assessed by RNA-sequencing. Results: Our result revealed that SF interventions induced inflammatory changes in adipose tissue and perturbed the diversity and composition of the gut microbiota. Concurrently, 6-week SF intervention led to a significant decline in left ventricular systolic function in mice, manifested by a notable decrease in EF and FS. Masson staining revealed distinctions compared to the control group, suggesting an increase in myocardial collagen fiber content following SF intervention. High-protein diet intervention partially mitigated the damage to cardiac structure and function caused by SF. Meanwhile, high-protein diet coupled with improvements in the adipose tissue transcriptome changes induced by SF. Conclusions: In conclusion, chronic SF intervention induced cardiac damage, alters gut microbiota composition and induce adipose tissue inflammation. High-protein diet could partially mitigate the changes above.
  • 🔗 查看原文

7.GSE322495 不同的巨噬细胞调节T细胞状态决定高危膀胱癌对卡介苗(BCG)的反应

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、T cell、macrophage
  • 📝 描述:Contributors : Andrew Houston ; Mairah Khan ; Ryan Brown ; Joshua MeeksSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensThe primary therapy for high-risk bladder cancer (BCa) is repeated instillations of the tuberculosis vaccine, Bacillus Calmette-Guerin (BCG). While BCG decreases the risk of recurrence by more than half, the concerted mechanisms of immune activation from BCG are unknown. Our objective was to investigate how the immune response differs between responders and non-responders to BCG therapy. We performed single-cell RNA-sequencing of isolated immune cells adjacent to high-risk bladders before and after BCG in BCG responders and non-responders. We identify an increase in Th17-like Th1 cells in BCG responders, characterized by greater expression of pro-inflammatory cytokines. Alternatively, non-responders had increased CD8+ T-cell exhaustion and T-regulatory cells. We identify that the primary mechanism of divergent T cell activity is driven by altered polarization and immunosuppressive signaling with myeloid cells. Through a machine-learning-based approach, we identified a Th17-like Th1 cytokines, such as IL17, IL21, and IL26, were predictive of a response, which were then validated in a separate BCG-treated BCa cohort. Together, this suggests that dynamic regulation of myeloid-T cell interactions can be targeted to improve BCG activity.
  • 🔗 查看原文

8.GSE304504 非人灵长类动物基因治疗相关视网膜炎症的单细胞和空间转录组分析

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:inflammation、single-cell、spatial
  • 📝 描述:Contributors : Célia Sourd ; Joel Quinn ; Molly C John ; Cristina Martinez-Fernandez de la Camara ; Lakshanie Wickramasinghe ; Moustafa Attar ; Hoda Shamsnajafabadi ; Ahmed Salman ; Sally A Cowley ; Calliope Dendrou ; Robert E MacLaren ; Jasmina Cehajic-Kapetanovic ; Kanmin XueSeries Type : OtherOrganism : Macaca mulattaAdeno-associated viral (AAV) vectors are rapidly advancing as gene therapies for inherited and common retinal disorders, but gene therapy-associated uveitis (GTAU) limits their broader application. To investigate the primate ocular immune response, we administered subretinal AAV gene therapy to two non-human primates (NHPs): NHP1 received AAV2-CAG-hRPE65 (voretigene neparvovec) bilaterally at clinical dose; NHP2 received AAV8-GRK1-hRPGRco alongside an analogous mScarlet reporter vector in separate blebs. Longitudinal assessments over three months included multimodal imaging, electroretinography and cytokine profiling, followed by immunohistological, single-cell and spatial transcriptomic analyses of retinal punches. Both therapies were well-tolerated, with preserved retinal structure and function. Single-cell RNA-sequencing revealed that the AAV8 vector transduced 80% of cones/rods in treated areas, while AAV2 targeted 30% of retinal pigment epithelium (RPE)/rods. Transgene expression did not correlate with apoptotic markers. Persistent immune infiltration (dominated by myeloid and T cells) suggested a type 1 cell-mediated response. Adjunctive intravitreal anti-TNFα (adalimumab) did not appear to mitigate this anti-viral response. Spatial analysis highlighted microglia migration to the subretinal space, consistent with upregulated cytokines (MCP-1/CCL2, IP-10/CXCL10, IL-8/CXCL8, IL-6), which implicate monocytic phagocytes in driving local inflammation. These findings elucidate the mechanism of GTAU and identify potential therapeutic targets to prevent immune-mediated complications in retinal gene therapy.
  • 🔗 查看原文

9.GSE324758 急性高强度运动改变不同品系小鼠的肠道菌群组成和能量代谢

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:metabolism、gut、regex:gut(-?microbiome)?
  • 📝 描述:Series Type : OtherOrganism : mouse metagenomeThe gut microbiota plays a critical role in host energy metabolism and immune regulation, yet the temporal dynamics of microbial community responses to acute physiological stressors remain poorly characterized. While exercise is recognized as a modulator of gut microbial composition, the immediate post-exercise shifts in microbial community structure across different genetic backgrounds have not been systematically examined. Here, we present a longitudinal 16S rRNA gene sequencing dataset profiling the temporal dynamics of gut microbiota following acute high-intensity exercise in two widely used laboratory mouse strains. Age-matched male BALB/c and C57BL/6J mice were subjected to a single bout of acute exercise. The colonic content samples were collected to capture early temporal responsesat. Total genomic DNA was extracted from colonic contents and the 16S rRNA V4 region was amplified and sequenced on the NovaSeq6000 platform. This dataset enables identification of strain-specific and conserved exercise-responsive microbial taxa, and supports functional predictions related to energy metabolism and intestinal homeostasis.
  • 🔗 查看原文

10.GSE302244 高脂饮食衍生的微生物代谢组诱导肠上皮细胞(类器官)产生炎症表型

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:regex:micro(b|be|bial|organism)、metabolome、regex:intestin(e|al)
  • 📝 描述:Contributors : Rebecca Springer ; Christoph Otto ; Nicolas SchlegelSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusWe investigated transcriptomic changes in mouse organoids treated with colonic contents from diet-induced obese and normal-weight rats. 2D Mouse organoids were harvested after 40 h of treatment with 10% solutions of rat colonic content. Our findings revealed induction of local inflammatory processes under treatment with content derived from rats fed a high-fat diet.
  • 🔗 查看原文

💡 该来源还有 107 条内容,详见 文末

🧪 博客更新 (1条)

详细内容(全部1条)

1. 利用长读长测序了解可变剪接

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing
  • 📝 描述:Long-read RNA sequencing reveals full-length isoforms, improving understanding of alternative splicing and enabling deeper insight into gene regulation and disease mechanisms…
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
cancer16
RNA-seq16
sequencing10
scRNA9
single-cell8
immune8
ChIP-seq7
spatial7
carcinoma7
transcriptome6
ATAC-seq5
tumor5
genome5
T cell4
macrophage4
inflammation4
regex:intestin(eal)
histone4
methylation4
antigen3

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🧬 数据前沿 其他内容 (107条)

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