科研日报 2026-01-22

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📅 Daily Report - 2026-01-22

今日筛选出 64 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: 高分辨率空间转录组学技术在解析微生物-宿主互作及肿瘤免疫微环境方面展现出突破性进展。

主要方向

  • 肿瘤免疫:解析非小细胞肺癌(NSCLC)中T细胞介导的免疫变化及淋巴结微环境;研究CTLA4阻断疗法中T细胞自身缺陷对疗效的影响。
  • 疾病机制:探究视黄醇对紫外线诱导皮肤光老化、巨噬细胞-成纤维细胞串扰在炎症发生与消退中的作用、以及SLC6A3多巴胺信号通路在肾癌免疫治疗耐药中的机制。
  • 微生物互作:利用空间转录组学高分辨率绘制肠道微生物与宿主的互作图谱。

技术亮点

  • 原位多聚腺苷酸化结合空间RNA测序(in situ Polyadenylation and Spatial RNA Sequencing)实现高分辨率微生物-宿主互作的空间解析。
  • 多模态单细胞及空间测序技术整合,全面揭示肿瘤免疫微环境的复杂性。

🧪 博客更新

今日焦点: 新型纳米孔直接RNA测序方法突破长转录本鉴定与亚型分辨率极限;首次在人类精子中发现RNA“衰老时钟”。

主要方向

  • 探索长链RNA转录本鉴定与亚型分析
  • 研究男性生殖细胞RNA的年龄相关变化及其对代谢与后代健康的影响
  • 精准绘制人类转录组m6A修饰位点图谱

技术亮点

  • 纳米孔直接RNA测序(DRS)技术
  • 深度学习结合纳米孔RNA测序实现单分子分辨率m6A位点检测

📚 分类浏览

🧬 数据前沿 (61条)

详细内容(前10条)

1.GSE316782 多模态单细胞和空间分析揭示侵袭性非小细胞肺癌患者非转移性淋巴结中 T 细胞介导的免疫和 B 细胞滤泡结构的改变

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、immunity、lymph、T cell、regex:lymph(o|atic)?、single-cell、spatial
  • 📝 描述:Contributors : Zhan Hao Xi ; Yusuke Koga ; Sarah A Mazzilli ; Kei Suzuki ; Joshua D CampbellSeries Type : Expression profiling by high throughput sequencing ; OtherOrganism : Homo sapiensRegional lymph nodes (LNs) in the thoracic cavity serve as essential immunological hubs that coordinate humoral and cell-mediated responses against the development and progression of non-small cell lung cancer (NSCLC). To investigate immune dysregulation in the non-metastatic regional LNs of patients with aggressive NSCLC, we performed multimodal profiling on 36 LNs from 11 patients undergoing curative-intent resection including CITE-seq, scRNA-seq, and Imaging Mass Cytometry (IMC). Regional N1 LNs from patients with more aggressive disease (stage IB–IIIA) exhibited a significant enrichment of dysfunctional CD8⁺ T cells and regulatory T cells (Tregs) compared to N2 LNs and LNs from patients with less aggressive disease (stage IA). These immune subsets were spatially co-localized with mature regulatory dendritic cells (mregDCs; CD1c⁺, TIM3⁺, LAMP3⁺), forming an immunosuppressive niche uniquely enriched in the N1 LNs of higher-stage patients. Concurrently, higher-stage N1 LNs contained larger number of “decorticated” B-cell follicles characterized by decreased encapsulation of the mantle zone layer surrounding the germinal centers. This mantle zone disorganization was associated with increased spatial niches involving Tregs, CD68⁺ CD163⁺ TIM3⁺ Macrophages, CD163⁺ TIM3dim Monocytic-Myeloid Derived Suppressor Cells (M-MDSC), plasma B cells, and a decrease in spatial niches involving CD4⁺ T helper cells and fibroblastic reticular cells (FRCs). Together, our findings reveal parallel alterations in humoral and cell-mediated immunity within the regional LNs of patients with aggressive NSCLC.
  • 🔗 查看原文

2.GSE316608 通过原位多聚腺苷酸化和空间 RNA 测序对微生物组-宿主相互作用进行高分辨率空间映射 [空间转录组学]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Ioannis Ntekas ; David W McKellar ; Lena Takayasu ; Iwijn De VlaminckSeries Type : OtherOrganism : Mus musculusInter-microbial and host-microbial interactions are critical for the functioning of the gut microbiome, but few tools are available to measure these interactions in situ. Here, we report a method for broad spatial sampling of microbiome-host interactions in the gut at high resolution (1 µm). This method combines enzymatic in situ polyadenylation of both bacterial and host RNA with spatial RNA-sequencing to increase bacterial RNA recovery and enable transcriptomic analysis of low-abundance and spatially restricted microbial taxa. We benchmark the method against existing spatial transcriptomic workflows, demonstrating improved sensitivity and resolution. Application of this method in a mouse model of intestinal neoplasia revealed the biogeography of the mouse gut microbiome as function of location in the intestine, frequent strong inter-microbial interactions at short length scales, and tumor-associated changes in the architecture of the host-microbiome interface. This method is compatible with widely available commercial platforms for spatial RNA-sequencing and can therefore be readily adopted to study the role of short-range, bidirectional host-microbe interactions in microbiome health and disease.
  • 🔗 查看原文

3.GSE294120 类维生素A对紫外线诱导的皮肤光老化的影响研究[空间转录组学]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Fan Hu ; Qijiang Zhao ; Chengzhi Zheng ; Ye Zhong ; Jian Shen ; Ruian Qiu ; Hao Zhu ; Tongquan Wu ; Rui Ye ; Le Du ; Daqing Ma ; Yicheng XieSeries Type : OtherOrganism : Mus musculusPhotoaging contributes to up to 80% of visible facial aging signs, making it a major dermatological concern. While retinoids such as retinol and all-trans retinoic acid (ATRA) promote extracellular matrix (ECM) regeneration, their side effects limit widespread use. We propose that hydroxypinacolone 9-cis retinoate (9-cis HPR), a derivative of 9-cis retinoic acid, activates both retinoic acid receptor (RAR) and retinoid X receptor (RXR), enhancing efficacy while minimizing irritation. However, its in vivo anti-photoaging effects remain underexplored. This study evaluates 9-cis HPR in the UVR-damaged SKH-1 mouse model, investigating its role in inflammation control, ECM regeneration, and melanogenesis suppression.
  • 🔗 查看原文

4.GSE316918 巨噬细胞-成纤维细胞相互作用的时空分子谱分析定义了协调炎症发生和消退的检查点 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、inflammation、RNA-seq
  • 📝 描述:Contributors : Katharina Weishaupt ; David Chambers ; Maria Dzamukova ; Ivana Androšević ; Jean-Philippe Auger ; Darleen Hüser ; Sébastien Trzebanski ; Andreas Ramming ; Anika Grüneboom ; Georg Schett ; Steffen Jung ; Markus H Hoffmann ; Gerhard KrönkeSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusThe molecular details of macrophage-fibroblast crosstalk during the onset and resolution of inflammatory disease remain incompletely understood. Here, we apply a scRNAseq-, scATACseq- and bulk RNAseq-based bioinformatic modelling approach to map heterocellular signaling circuits of synovial macrophage and synovial fibroblast (SF) subsets during various stages of inflammatory arthritis. While SFs function as key pacemakers of synovial inflammation, individual subsets of synovial macrophages support both the perpetuation and the resolution of arthritis. While pro-inflammatory Il1b+ macrophages dominate the early stages of inflammation, these cells also retain a substantial intrinsic plasticity that is characterized by chromatin remodeling and an eventual differentiation into Spp1+ macrophages. These cells display a terminally-differentiated phenotype, suppresses activation of pro-inflammatory SFs, and initiates the resolution of arthritis by secretion of regulatory mediators including osteopontin. Our data highlight the dichotomous character of macrophage-fibroblast crosstalk and define the cellular and molecular checkpoints that control the onset and resolution of immune-mediated inflammatory diseases.
  • 🔗 查看原文

5.GSE316869 通过原位多聚腺苷酸化和空间 RNA 测序对微生物组-宿主相互作用进行高分辨率空间映射 [bulk RNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、RNA-seq、spatial
  • 📝 描述:Contributors : Ioannis Ntekas ; David W McKellar ; Lena Takayasu ; Iwijn De VlaminckSeries Type : Expression profiling by high throughput sequencingOrganism : mouse gut metagenomeInter-microbial and host–microbial interactions are thought to be critical for the functioning of the gut microbiome, but few substantive tools are available to measure these interactions. Here, we report a method for unbiased spatial sampling of microbiome-host interactions in the gut at high spatial resolution. This method combines enzymatic in situ polyadenylation of both bacterial and host transcripts with spatial RNA-sequencing. Application of this method revealed the biogeography of the mouse gut microbiome as function of location in the intestine, short-range intermicrobial interaction, local shaping of the microbiome by the host, and tumor-associated changes in the architecture of the host-microbiome interface. This method is compatible with broadly available commercial platforms for spatial RNA-sequencing, and can therefore be readily adopted to broadly study the role of short-range, bidirectional host-microbe interactions in microbiome health and disease.
  • 🔗 查看原文

6.GSE316833 巨噬细胞-成纤维细胞相互作用的时空分子谱分析定义了协调炎症发生和消退的检查点 [scRNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、inflammation、scRNA
  • 📝 描述:Contributors : Katharina Weishaupt ; David Chambers ; Maria Dzamukova ; Ivana Androšević ; Jean-Philippe Auger ; Darleen Hüser ; Sébastien Trzebanski ; Andreas Ramming ; Anika Grüneboom ; Georg Schett ; Steffen Jung ; Markus H Hoffmann ; Gerhard KrönkeSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusThe molecular details of macrophage-fibroblast crosstalk during the onset and resolution of inflammatory disease remain incompletely understood. Here, we apply a scRNAseq-, scATACseq- and bulk RNAseq-based bioinformatic modelling approach to map heterocellular signaling circuits of synovial macrophage and synovial fibroblast (SF) subsets during various stages of inflammatory arthritis. While SFs function as key pacemakers of synovial inflammation, individual subsets of synovial macrophages support both the perpetuation and the resolution of arthritis. While pro-inflammatory Il1b+ macrophages dominate the early stages of inflammation, these cells also retain a substantial intrinsic plasticity that is characterized by chromatin remodeling and an eventual differentiation into Spp1+ macrophages. These cells display a terminally-differentiated phenotype, suppresses activation of pro-inflammatory SFs, and initiates the resolution of arthritis by secretion of regulatory mediators including osteopontin. Our data highlight the dichotomous character of macrophage-fibroblast crosstalk and define the cellular and molecular checkpoints that control the onset and resolution of immune-mediated inflammatory diseases.
  • 🔗 查看原文

7.GSE316802 巨噬细胞-成纤维细胞相互作用的时空分子谱分析定义了协调炎症发生和消退的检查点 [scATAC-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:macrophage、inflammation、scATAC
  • 📝 描述:Contributors : Katharina Weishaupt ; David Chambers ; Maria Dzamukova ; Ivana Androšević ; Jean-Philippe Auger ; Darleen Hüser ; Sébastien Trzebanski ; Andreas Ramming ; Anika Grüneboom ; Georg Schett ; Steffen Jung ; Markus H Hoffmann ; Gerhard KrönkeSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusThe molecular details of macrophage-fibroblast crosstalk during the onset and resolution of inflammatory disease remain incompletely understood. Here, we apply a scRNAseq-, scATACseq- and bulk RNAseq-based bioinformatic modelling approach to map heterocellular signaling circuits of synovial macrophage and synovial fibroblast (SF) subsets during various stages of inflammatory arthritis. While SFs function as key pacemakers of synovial inflammation, individual subsets of synovial macrophages support both the perpetuation and the resolution of arthritis. While pro-inflammatory Il1b+ macrophages dominate the early stages of inflammation, these cells also retain a substantial intrinsic plasticity that is characterized by chromatin remodeling and an eventual differentiation into Spp1+ macrophages. These cells display a terminally-differentiated phenotype, suppresses activation of pro-inflammatory SFs, and initiates the resolution of arthritis by secretion of regulatory mediators including osteopontin. Our data highlight the dichotomous character of macrophage-fibroblast crosstalk and define the cellular and molecular checkpoints that control the onset and resolution of immune-mediated inflammatory diseases.
  • 🔗 查看原文

8.GSE316470 SLC6A3 多巴胺能信号传导破坏剪接体保真度以促进透明细胞肾细胞癌的免疫检查点抑制剂耐药性[2]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、immune、resistance
  • 📝 描述:Contributor : Junhui SuSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusClear cell renal cell carcinoma (ccRCC) remains refractory to immune checkpoint inhibitors (ICIs) despite its high tumor mutational burden, highlighting an urgent need to elucidate tumor-intrinsic mechanisms of immune escape. Here, leveraging lineage tracing and single-cell multi-omic profiling in immunocompetent models, we identify a pre-existing SLC6A3-positive tumor subpopulation that persists following anti-PD-1 therapy and orchestrates immune evasion by exploiting renal dopamine uptake. SLC6A3 overexpression is robustly associated with diminished infiltration of cytotoxic CD8⁺ T cells and myeloid dendritic cells, establishing it as a biomarker of ICI resistance in ccRCC. Mechanistically, SLC6A3-mediated dopamine import disrupts the MHC-I antigen presentation pathway through direct sequestration of the spliceosomal regulator USP39, resulting in aberrant splicing of B2m and Tap1/2 pre-mRNAs and consequent loss of antigenicity. This disconnects high mutational burden from effective immune surveillance, enabling sustained immune escape. Critically, both genetic and pharmacologic inhibition of SLC6A3 restore antigen presentation competency, potentiate CD8⁺ T cell cytotoxicity, and synergize with anti-PD-1 treatment to achieve durable tumor regression in vivo. Our findings redefine dopamine as a tumor-intrinsic immunosuppressant in ccRCC and nominate the SLC6A3-USP39 axis as a tractable target for reversing antigen presentation defects and overcoming microenvironment-driven ICI resistance.
  • 🔗 查看原文

9.GSE316468 SLC6A3 多巴胺能信号传导破坏剪接体保真度以促进透明细胞肾细胞癌的免疫检查点抑制剂耐药性[1]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、immune、resistance
  • 📝 描述:Contributor : Junhui SuSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusClear cell renal cell carcinoma (ccRCC) remains refractory to immune checkpoint inhibitors (ICIs) despite its high tumor mutational burden, highlighting an urgent need to elucidate tumor-intrinsic mechanisms of immune escape. Here, leveraging lineage tracing and single-cell multi-omic profiling in immunocompetent models, we identify a pre-existing SLC6A3-positive tumor subpopulation that persists following anti-PD-1 therapy and orchestrates immune evasion by exploiting renal dopamine uptake. SLC6A3 overexpression is robustly associated with diminished infiltration of cytotoxic CD8⁺ T cells and myeloid dendritic cells, establishing it as a biomarker of ICI resistance in ccRCC. Mechanistically, SLC6A3-mediated dopamine import disrupts the MHC-I antigen presentation pathway through direct sequestration of the spliceosomal regulator USP39, resulting in aberrant splicing of B2m and Tap1/2 pre-mRNAs and consequent loss of antigenicity. This disconnects high mutational burden from effective immune surveillance, enabling sustained immune escape. Critically, both genetic and pharmacologic inhibition of SLC6A3 restore antigen presentation competency, potentiate CD8⁺ T cell cytotoxicity, and synergize with anti-PD-1 treatment to achieve durable tumor regression in vivo. Our findings redefine dopamine as a tumor-intrinsic immunosuppressant in ccRCC and nominate the SLC6A3-USP39 axis as a tractable target for reversing antigen presentation defects and overcoming microenvironment-driven ICI resistance.
  • 🔗 查看原文

10. GSE308009 抑制 Gerozyme 15-前列腺素脱氢酶可促进损伤或衰老引起的骨关节炎的关节软骨再生 [scRNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:aging、scRNA
  • 📝 描述:Contributors : Mamta Singla ; Yu X Wang ; Elena Monti ; Yudhishtar S Bedi ; Pranay Agarwal ; Shiqi Su ; Sara Ancel ; Maiko Hermsmeier ; Nitya Devisetti ; Akshay Pandey ; Mohsen A Bakooshli ; Adelaida R Palla ; Stuart Goodman ; Helen M Blau ; Nidhi BhutaniSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusAging or injury to the joints can lead to cartilage degeneration osteoarthritis (OA), for which there are limited effective treatments. We found that expression of the gerozyme 15-Prostaglandin Dehydrogenase (15-PGDH) was increased in the articular cartilage of aged or injured mice. Both systemic and local inhibition of 15-PGDH with a small molecule inhibitor (PGDHi) led to regeneration of articular cartilage and reduction in OA-associated pain. We used single cell RNA-sequencing and multiplexed immunofluorescence imaging of cartilage), to identify the major chondrocyte subpopulationsInhibition of 15-PGDH decreased hypertrophic-like chondrocytes expressing 15-PGDH and fibro-chondrocytes towards hyaline matrix-synthesizing articular chondrocytes. Regeneration of joint cartilage appears to occur through changes in pre-existing chondrocytes, not stem or progenitor cell proliferation.Gerozyme inhibition could be a potential identifying a disease-modifying and regenerative approach with potential utility for the treatment of osteoarthritis.
  • 🔗 查看原文

💡 该来源还有 51 条内容,详见 文末

🧪 博客更新 (3条)

详细内容(全部3条)

1. 一种用于纳米孔直接RNA测序的新方法突破了长转录本鉴定和异构体分辨率的极限

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:RNA-seq
  • 📝 描述:Direct RNA sequencing (DRS) on nanopore platforms promises something short-read methods cannot: native RNA molecules read end-to-end, with isoforms, long transcripts, and RNA modifications preserved. In practice, however, many labs find that conventional DRS workflows underdeliver on that promise—especially for transcripts longer than a few kilobases. This article outlines a recent benchmarking study that …
  • 🔗 查看原文

2. 科学家在人类精子中发现隐藏的RNA“衰老时钟”

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:aging
  • 📝 描述:Advanced RNA sequencing reveals age-related shifts in sperm RNA that may influence metabolism and offspring health, highlighting a conserved molecular clock in male reproduction…
  • 🔗 查看原文

3. 以单分子分辨率全面发现人类转录组中的m6A位点

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:transcriptome
  • 📝 描述:Deep learning paired with Nanopore RNA sequencing enables near-perfect detection of m6A and reveals unexpected complexity in human RNA modification patterns…
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
sequencing11
RNA-seq9
spatial8
cancer6
single-cell6
macrophage6
immune5
scRNA4
transcriptomics4
inflammation4
aging3
methylation3
carcinoma3
resistance3
genome3
transcriptome2
lymph2
regex:lymph(oatic)?
regex:intestin(eal)
Hi-C2

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🧬 数据前沿 其他内容 (51条)

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