科研日报 2026-02-27

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📅 Daily Report - 2026-02-27

今日筛选出 89 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: 一项研究揭示了CD8 T细胞在非裂解性病毒疫苗诱导的持久性免疫中发挥的关键作用,通过触发I型干扰素实现。细菌CARD-NLR免疫系统在控制基因转移因子释放方面展现了新机制。

主要方向

  • 肿瘤免疫与治疗:探讨IL-4在肿瘤免疫中的表观遗传调控,以及DAB2IP、LncRNA SLC16A1-AS1、SF3B1-K700E等在肿瘤发生发展中的作用,并研究 ferroptosis 诱导对癌症免疫治疗的增强效应。
  • 免疫细胞功能与调控:聚焦CD8 T细胞、ILC3s、CD4 T细胞等在肿瘤抑制、肠道屏障保护、组织驻留免疫网络中的作用。
  • 感染与疫苗研究:阐明病毒疫苗载体诱导T细胞免疫的机制。

技术亮点

  • 结合单细胞转录组学(scRNA-Seq)与全基因组测序技术(CUT&Tag, ChIP-Seq, Tn-Seq)深入解析免疫通路和基因调控。

🧪 博客更新

今日焦点: 首次发现带状疱疹疫苗可能延缓生物衰老并降低炎症;研究揭示微塑料在90%前列腺癌肿瘤中普遍存在,且含量远高于健康组织。

主要方向

  • 探索带状疱疹疫苗对老年人生物衰老及炎症水平的影响。
  • 鉴定与衰老相关的线粒体环状RNA(circRNA)及其在细胞衰老和线粒体代谢中的作用。
  • 检测前列腺癌肿瘤组织中的微塑料污染及其潜在关联。

技术亮点

  • 利用RNA测序(RNA-Seq)技术鉴定与衰老相关的线粒体circRNA。
  • 开发用户友好的ERSAtool,简化RNA测序数据分析流程,便于教学应用。

📚 分类浏览

🧬 数据前沿 (85条)

详细内容(前10条)

1.GSE315254 Smyd5 介导 IL-4 表观遗传控制巨噬细胞抗原呈递,从而驱动协同 T 细胞介导的肿瘤抑制 [CUT&Tag]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、T cell、macrophage、antigen、epigenetic
  • 📝 描述:Contributors : Buyun Dang ; Yuling Hong ; Qingxiang Gao ; Shih-Chin ChengSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusIL-4 is classically associated with “M2” macrophages considered tumor-immunosuppressive, yet marker-based labels poorly reflect macrophage function in tumors. Reports of a non-canonical, IL-4–imprinted macrophage state (M2inf) with trained-immunity features prompted us to test whether such imprinting contributes to antitumor immunity in vivo. Here we show that, in B16F10 melanoma, IL-4 programs macrophages through the lysine methyltransferase Smyd5 to deposit promoter-proximal H3K36me3, increase MHC class II, and potentiate T cell activation. Myeloid Il4ra deletion increased tumor burden and reduced MHC class II and intratumoral T cell activation, whereas co-transfer of IL-4–primed macrophages suppressed tumors and expanded activated CD4 and CD8 T cells. Antitumor benefit required adaptive lymphocytes and macrophage-intrinsic MHC class II, as Rag1 deficiency or macrophage Rfx5 deletion abrogated tumor suppression. These findings identify a non-canonical, IL-4–imprinted macrophage program that enables antigen presentation and cooperative T cell immunity in this tumor context.
  • 🔗 查看原文

2.GSE317029 非细胞溶解性病毒疫苗载体通过触发 I 型干扰素诱导持久的效应记忆 CD8 T 细胞免疫 [scRNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immunity、vaccine、T cell、scRNA
  • 📝 描述:Contributors : Matias Ciancaglini ; Robin Avanthay ; Anna-Friederike Marx ; Tiago Abreu-Mota ; Davide Finozzi ; Jonas Fixemer ; Florian Geier ; Dominik Burri ; Ingrid Wagner ; Ilena Vincenti ; Mario Kreuzfeld ; Doron Merkler ; Gert Zimmer ; Daniel D PinschewerSeries Type : Expression profiling by high throughput sequencing ; OtherOrganism : Mus musculusReplication-deficient viral vector systems hold promise for CD8 T cell-based vaccination, but the molecular mechanisms accounting for platform-specific differences in immunogenicity remain ill-defined. Here we compared lymphocytic choriomeningitis virus- (rLCMV) and vesicular stomatitis virus-based (rVSV) single-cycle vectors to explore vector-specific features determining long-lived effector-memory CD8 T cell induction. rLCMV, a non-cytolytic vector, elicited more durable CD8 T cell responses and a higher proportion of effector-memory CD8 T cells than cytolytic rVSV. When rVSV was re-engineered to be non-cytolytic (rVSVMq), also this vector induced durable and effector-differentiated CD8 T cell memory, reminiscent of rLCMV-induced responses, and it afforded superior protection against Listeria challenge than rVSV. Improved CD8 T cell responses of non-cytolytic rVSVMq depended on an elevated type I interferon (IFN-I) response and its direct sensing by vaccination-induced CD8 T cells. Many rVSVMq-infected cells in the splenic marginal zone that were in contact with antigen-specific CD8 T cells expressed not only vectorized antigen but also IFN-I, suggesting that non-cytolytic viral vectors promote the integration of peptide-MHC and IFN-I signals during T cell activation. These mechanistic insights should help to refine vaccines aimed at eliciting durable and protective effector-memory CD8 T cell immunity.
  • 🔗 查看原文

3.GSE310552 DAB2IP 通过增强肠道 ILC3 功能来调节肠道炎症

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:inflammation、gut、regex:gut(-?microbiome)?、regex:intestin(e|al)
  • 📝 描述:Contributors : Liang Liu ; Zhiheng HeSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusGroup 3 innate lymphoid cells (ILC3s) protect the intestinal barrier by producing IL-22 and IL-17A, yet the molecular mechanisms that sustain their cytokine output during inflammation remain poorly defined. Here, we identify the cytosolic scaffold DAB2IP as a critical ILC3-intrinsic regulator of effector function. In human IBD, DAB2IP expression is reduced in inflamed tissues, correlating with impaired epithelial repair and decreased IL-22. In mice, DAB2IP expression in ILC3s declines during intestinal inflammation, and silencing DAB2IP markedly diminishes IL-22 and IL-17A production. Adoptive transfer of Dap2ip-deficient ILC3s exacerbates DSS-induced colitis and increases susceptibility to Citrobacter rodentium. Mechanistically, DAB2IP promotes NF-κB activation, sustaining transcription of Il22 and Il17a. These results reveal a context-dependent role for DAB2IP as a positive regulator of NF-κB in ILC3s, highlighting its previously unknown function in mucosal immunity and epithelial repair, and suggesting that restoring DAB2IP signaling could enhance barrier protection during intestinal inflammation.
  • 🔗 查看原文

4.GSE311208 单细胞和批量 RNA 测序相结合揭示骨髓炎中免疫微环境的变化

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、RNA-seq、single-cell
  • 📝 描述:Contributors : Zhenhua Zhu ; Xiaopeng Jing ; Jun Chen ; Jie Tan ; Ji Zeng ; Zheng JinSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusObjective: This study profiled the osteomyelitis immune micro-environment in depth, pinpointed driver genes and cell populations that fuel disease progression, and mined the data for actionable drug targets. Methods: We analyzed time-series transcriptomic sequencing data from mouse tibial osteomyelitis samples in dataset GSE168896. Fuzzy c-means clustering was applied to reveal gene sets linked to disease progression. Immune cell infiltration analysis was conducted through online tool ImmuCellAI-mouse. Furthermore, by leveraging single-cell sequencing data, we characterized immune cell subpopulations and pinpointed the key cell subtypes that exhibited in osteomyelitis mouse. Results: We identified six gene clusters exhibiting distinct temporal expression patterns and functional roles in osteomyelitis processes, such as leukocyte and lymphocyte activation, ossification. Single-cell sequencing analysis further revealed 7 distinct cellular subpopulations. Among these, M2-like macrophages demonstrated a significant increase following osteomyelitis. Arg+Sdc4+ Mac and Cxcl1+Ccl4+ Mac were new subpopulations of macrophages that emerged after osteomyelitis, the infiltration of Mif+Cd63+ Mac significantly increased. Besides, Cxcl2-Cxcr2 ligand-receptors contributed mostly in immune cells.
  • 🔗 查看原文

5.GSE295580 细菌 CARD-NLR 免疫系统控制基因转移因子的释放 [RNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、regex:bacter(ia|ial|ium)、RNA-seq
  • 📝 描述:Contributors : Emma Banks ; Tung LeSeries Type : Expression profiling by high throughput sequencingOrganism : Caulobacter vibrioidesBacteria have evolved a wide array of immune systems to detect and defend against external threats including mobile genetic elements (MGEs) such as bacteriophages, plasmids, and transposons. MGEs are often selfish, exploiting their bacterial hosts to propagate, however they can also provide adaptive advantages through horizontal gene transfer. Gene transfer agents (GTAs), which are non-infectious domesticated prophages, represent a unique class of beneficial MGEs that facilitate bacterial gene transfer. Despite their domestication, GTAs retain phage-like features, including the requirement for host cell lysis to release particles, that may inadvertently trigger host immunity. How GTAs might avoid, subvert, or possibly adopt host immune systems to complete their life stages is poorly understood. Here, we identify a tripartite system, LypABC, that is essential for GTA-mediated cell lysis in Caulobacter crescentus. LypABC resembles caspase recruitment domain-nucleotide-binding leucine-rich repeat (CARD-NLR) anti-phage defence systems that mediate abortive infection wherein infected cells die to prevent phage proliferation, thereby protecting the overall bacterial population. LypABC-deficient cells produce host DNA-packed GTA particles and eventually die but cannot lyse to release GTA particles. Moreover, overproduction of LypABC is highly toxic to both GTA-producing and non-producing cells, highlighting the need for strict regulation. We find that such regulation is achieved transcriptionally by a repressor, CdxB, which binds the promoters of lypABC and of essential GTA activator genes, thus coupling GTA activation and host cell lysis. While traditionally considered antagonistic towards MGEs, our findings here suggest that immunity components are versatile and can be adapted to support MGEs.
  • 🔗 查看原文

6.GSE295577 细菌 CARD-NLR 免疫系统控制基因转移剂的释放 [ChIP-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、regex:bacter(ia|ial|ium)、ChIP-seq
  • 📝 描述:Contributors : Emma Banks ; Tung LeSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Caulobacter vibrioidesBacteria have evolved a wide array of immune systems to detect and defend against external threats including mobile genetic elements (MGEs) such as bacteriophages, plasmids, and transposons. MGEs are often selfish, exploiting their bacterial hosts to propagate, however they can also provide adaptive advantages through horizontal gene transfer. Gene transfer agents (GTAs), which are non-infectious domesticated prophages, represent a unique class of beneficial MGEs that facilitate bacterial gene transfer. Despite their domestication, GTAs retain phage-like features, including the requirement for host cell lysis to release particles, that may inadvertently trigger host immunity. How GTAs might avoid, subvert, or possibly adopt host immune systems to complete their life stages is poorly understood. Here, we identify a tripartite system, LypABC, that is essential for GTA-mediated cell lysis in Caulobacter crescentus. LypABC resembles caspase recruitment domain-nucleotide-binding leucine-rich repeat (CARD-NLR) anti-phage defence systems that mediate abortive infection wherein infected cells die to prevent phage proliferation, thereby protecting the overall bacterial population. LypABC-deficient cells produce host DNA-packed GTA particles and eventually die but cannot lyse to release GTA particles. Moreover, overproduction of LypABC is highly toxic to both GTA-producing and non-producing cells, highlighting the need for strict regulation. We find that such regulation is achieved transcriptionally by a repressor, CdxB, which binds the promoters of lypABC and of essential GTA activator genes, thus coupling GTA activation and host cell lysis. While traditionally considered antagonistic towards MGEs, our findings here suggest that immunity components are versatile and can be adapted to support MGEs.
  • 🔗 查看原文

7.GSE317032 非细胞溶解性病毒疫苗载体通过触发 I 型干扰素诱导持久的效应记忆 CD8 T 细胞免疫

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immunity、vaccine、T cell
  • 📝 描述:Series Type : Expression profiling by high throughput sequencing ; OtherOrganism : Mus musculusThis SuperSeries is composed of the SubSeries listed below.
  • 🔗 查看原文

8.GSE317031 非细胞溶解性病毒疫苗载体通过触发 I 型干扰素诱导持久的效应记忆 CD8 T 细胞免疫 [TCR-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immunity、vaccine、T cell
  • 📝 描述:Contributors : Matias Ciancaglini ; Robin Avanthay ; Anna-Friederike Marx ; Tiago Abreu-Mota ; Davide Finozzi ; Jonas Fixemer ; Florian Geier ; Dominik Burri ; Ingrid Wagner ; Ilena Vincenti ; Mario Kreuzfeld ; Doron Merkler ; Gert Zimmer ; Daniel D PinschewerSeries Type : OtherOrganism : Mus musculusReplication-deficient viral vector systems hold promise for CD8 T cell-based vaccination, but the molecular mechanisms accounting for platform-specific differences in immunogenicity remain ill-defined. Here we compared lymphocytic choriomeningitis virus- (rLCMV) and vesicular stomatitis virus-based (rVSV) single-cycle vectors to explore vector-specific features determining long-lived effector-memory CD8 T cell induction. rLCMV, a non-cytolytic vector, elicited more durable CD8 T cell responses and a higher proportion of effector-memory CD8 T cells than cytolytic rVSV. When rVSV was re-engineered to be non-cytolytic (rVSVMq), also this vector induced durable and effector-differentiated CD8 T cell memory, reminiscent of rLCMV-induced responses, and it afforded superior protection against Listeria challenge than rVSV. Improved CD8 T cell responses of non-cytolytic rVSVMq depended on an elevated type I interferon (IFN-I) response and its direct sensing by vaccination-induced CD8 T cells. Many rVSVMq-infected cells in the splenic marginal zone that were in contact with antigen-specific CD8 T cells expressed not only vectorized antigen but also IFN-I, suggesting that non-cytolytic viral vectors promote the integration of peptide-MHC and IFN-I signals during T cell activation. These mechanistic insights should help to refine vaccines aimed at eliciting durable and protective effector-memory CD8 T cell immunity.
  • 🔗 查看原文

9. GSE306901 京都透明细胞癌队列的 RNA-seq。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、RNA-seq
  • 📝 描述:Series Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensFresh frozen tumor tissues from 38 cases diagnosed as clear cell carcinoma (CCC) were submitted to total RNA-sequencing.
  • 🔗 查看原文

10. GSE300837 PM2.5暴露的遗传易感性驱动儿童哮喘的转录反应:来自单细胞转录组学的启示

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:single-cell、transcriptomics
  • 📝 描述:Contributors : Jelte Kelchtermans ; Huiqi Qu ; Cuiping Hou ; Frank Mentch ; Sharon A McGrath-Morrow ; Hakon HakonarsonSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensBackground. Exposure to fine particulate matter (PM2.5) increases asthma severity and reduces glucocorticoid responsiveness in children, yet the molecular mechanisms underlying PM2.5 sensitivity remain unclear. We previously identified a PM2.5-sensitive asthma phenotype and developed a PM2.5 sensitivity polygenic risk score (sPRS) correlated with asthma exacerbations and lung function decline. This study expands on these results using genetic mapping and single-cell transcriptomics to elucidate the biological pathways mediating PM2.5 sensitivity and generate hypotheses regarding potential therapeutic targets. Research Question. We aimed to determine whether genetic variants associated with PM2.5 sensitivity converge on specific pathways or transcriptional regulators and assess their role in glucocorticoid responsiveness. Methods. We mapped sPRS variants to genes using regulatory annotation tools and performed pathway enrichment analysis. Single-cell RNA sequencing (scRNA-seq) was conducted on peripheral blood mononuclear cells (PBMCs) from patients stratified by sPRS and matched by PM2.5 exposure to identify transcriptional perturbations in response to PM2.5 exposure. In silico analyses predicted regulatory networks and small molecules that could modulate these pathways. Results. sPRS-associated genes were enriched for SMAD2/3 and MAPK signaling, implicating TGF-β1 as a key mediator of PM2.5 sensitivity. scRNA-seq revealed immune cell-specific transcriptional changes linked to inflammation. Notably, HDM2 inhibition downregulated the PM2.5-sensitive transcriptomic signature, suggesting a role in restoring glucocorticoid responsiveness. Interpretation. Our findings suggest a TGF-β1–HDM2–p53 axis may contribute to PM2.5-induced glucocorticoid resistance and identify HDM2 as a potential therapeutic target for future investigation in PM2.5-sensitive children with asthma.
  • 🔗 查看原文

💡 该来源还有 75 条内容,详见 文末

🧪 博客更新 (4条)

详细内容(全部4条)

1.带状疱疹疫苗可能延缓生物衰老并减轻炎症

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:vaccine、aging、inflammation
  • 📝 描述:A shingles shot might do more than prevent a painful rash — it could actually help slow down the aging process. In a large national study of more than 3,800 Americans age 70 and older, those who received the shingles vaccine showed slower biological aging compared to those who didn’t. Researchers found lower levels of chronic inflammation and slower changes in gene activity linked to aging, suggesting the vaccine may calm the body’s “inflammaging” — the low-grade inflammation tied to heart disease, frailty, and cognitive decline.
  • 🔗 查看原文

2. RNA测序鉴定出与衰老相关的线粒体环状RNA

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:aging、RNA-seq
  • 📝 描述:Using RNA sequencing of human PBMCs, researchers identify aging-associated mitochondrial circular RNAs and link circMT-RNR2 and GRSF1 to mitochondrial metabolism and cellular senescence…
  • 🔗 查看原文

3. 一款用户友好的工具将RNA测序分析引入课堂。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing
  • 📝 描述:ERSAtool simplifies RNA sequencing analysis through an interactive R Shiny interface, guiding users from normalization to differential expression and functional analysis without requiring advanced coding skills…
  • 🔗 查看原文

4. 研究显示,90%的前列腺癌肿瘤中都发现了微塑料。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer
  • 📝 描述:Researchers have detected microplastics in nearly all prostate cancer tumors examined in a new study. Tumor tissue contained about 2.5 times more plastic than nearby healthy prostate tissue. Scientists say this is the first Western study to directly measure plastic particles in prostate tumors. More research is needed, but the findings suggest microplastic exposure could play a role in cancer development.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
RNA-seq16
cancer12
immune11
single-cell6
T cell6
sequencing5
aging5
ChIP-seq5
inflammation5
immunity5
genome5
carcinoma4
transcriptomics4
histone4
vaccine4
tumor4
scRNA3
regex:bacter(iaial
regex:onco(logylogist
pathway2

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🧬 数据前沿 其他内容 (75条)

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