科研日报 2025-12-19

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📅 Daily Report - 2025-12-19

今日筛选出 100 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: 单细胞分辨率揭示免疫检查点阻滞耐药中T细胞耗竭的转录调控机制;高强度间歇训练(HIIT)通过乳酸作为代谢-表观遗传信号重塑骨骼肌。

主要方向

  • 肿瘤免疫与治疗耐药:解析免疫检查点阻滞耐药中的T细胞耗竭、MEK抑制剂在KRAS突变肺癌中的抗肿瘤免疫增强作用、纳米疗法逆转胰腺癌免疫抑制性巨噬细胞、ADC耐药机制及靶向策略、以及肿瘤内在因素调控卵巢癌免疫反应。
  • 代谢与表观遗传调控:研究乳酸在HIIT诱导骨骼肌甲基化组和转录组重塑中的作用,以及MRPL37对肝细胞癌进展的影响。
  • 神经科学与疾病:探索脑衰老的表观遗传特征,以及创伤后应激障碍(PTSD)中海马体的免疫失衡。

技术亮点

  • 单细胞多组学结合:利用单细胞RNA测序(scRNA-seq)和单细胞ATAC测序(scATAC-seq)解析复杂的细胞异质性。
  • 空间转录组学:Visium空间转录组学技术用于分析脑损伤和肝脏再生过程中的细胞微环境。

🧪 博客更新

今日焦点: 单细胞转录组学技术(RoCK and ROI)通过多重富集和区域特异性测序,显著提升了单细胞RNA测序分辨率,揭示关键转录本和感兴趣区域。

主要方向

  • 单细胞RNA测序揭示线粒体DNA突变负担如何影响代谢灵活性和癌症(如白血病)发生。
  • 研究发现泡菜(Kimchi)通过调控免疫系统,可促进人体免疫功能。
  • 开发新型检测方法,通过追踪大脑糖利用情况,实现阿尔茨海默病(Alzheimer’s)的早期预警。

技术亮点

  • UltraMarathonRT® Direct RNA‑Seq Kit 实现了Nanopore直接RNA测序的突破,提供更长读长、更多异构体,并保留RNA修饰。
  • AI在癌症诊断的同时,还能从病理切片中推断患者人口统计学信息。

📚 分类浏览

🧬 数据前沿 (94条)

详细内容(前10条)

1.GSE268161 单细胞分辨率下免疫检查点阻断抵抗中 T 细胞耗竭的转录调控 [离体-scRNA]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、T cell、resistance、single-cell、scRNA
  • 📝 描述:Contributors : Tzu-Yang Tseng ; Ching-Huang Hsieh ; Chia-Lang Hsu ; Yu-Ching Wu ; Chiun Hsu ; Hsuan-Cheng Huang ; Da-Liang Ou ; Hsueh-Fen JuanSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusTumor-specific CD8+ T lymphocytes are crucial for anti-cancer immunity but can lose cytotoxic function in the immunosuppressive tumor microenvironment. Immune checkpoint blockades (ICB), like anti-PD-1 therapy, enhance and prolong anti-tumor T cell responses. Despite its widespread clinical use, resistance to ICB develops in some patients, characterized by the proliferation of exhausted T cell (Tex). Here, we establish two single-cell murine hepatocellular carcinoma (HCC) models to explore regulatory network in Tex with ICB resistance. We uncover distinct T cell compositions, including both early and terminal Tex subsets, following prolonged ICB treatment, and reveal the differentiation trajectory of Tex subsets. Finally, we not only identify transcription factor Runx2 and its downstream targets as contributors to T cell exhaustion in both models, but discover ICB response correlates to Runx2 level in human tumor-infiltrating lymphocytes. These findings elucidate Runx2 regulates T cell exhaustion in response to prolonged ICB treatment, influencing ICB effICBency, and suggest potential targets for combination therapy alongside ICB in HCC.
  • 🔗 查看原文

2.GSE268160 单细胞分辨率下免疫检查点阻断耐药中 T 细胞耗竭的转录调控 [ex vivo-scATAC]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、T cell、resistance、single-cell、scATAC
  • 📝 描述:Contributors : Tzu-Yang Tseng ; Ching-Huang Hsieh ; Chia-Lang Hsu ; Yu-Ching Wu ; Chiun Hsu ; Hsuan-Cheng Huang ; Da-Liang Ou ; Hsueh-Fen JuanSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusTumor-specific CD8+ T lymphocytes are crucial for anti-cancer immunity but can lose cytotoxic function in the immunosuppressive tumor microenvironment. Immune checkpoint blockades (ICB), like anti-PD-1 therapy, enhance and prolong anti-tumor T cell responses. Despite its widespread clinical use, resistance to ICB develops in some patients, characterized by the proliferation of exhausted T cell (Tex). Here, we establish two single-cell murine hepatocellular carcinoma (HCC) models to explore regulatory network in Tex with ICB resistance. We uncover distinct T cell compositions, including both early and terminal Tex subsets, following prolonged ICB treatment, and reveal the differentiation trajectory of Tex subsets. Finally, we not only identify transcription factor Runx2 and its downstream targets as contributors to T cell exhaustion in both models, but discover ICB response correlates to Runx2 level in human tumor-infiltrating lymphocytes. These findings elucidate Runx2 regulates T cell exhaustion in response to prolonged ICB treatment, influencing ICB effICBency, and suggest potential targets for combination therapy alongside ICB in HCC.
  • 🔗 查看原文

3.GSE268165 单细胞分辨率下免疫检查点阻断耐药中T细胞耗竭的转录调控

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、T cell、resistance、single-cell
  • 📝 描述:Series Type : Expression profiling by high throughput sequencing ; Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusThis SuperSeries is composed of the SubSeries listed below.
  • 🔗 查看原文

4.GSE268163 免疫检查点阻断抵抗中 T 细胞耗竭的转录调控(单细胞分辨率)[体内]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、T cell、resistance、single-cell
  • 📝 描述:Contributors : Tzu-Yang Tseng ; Ching-Huang Hsieh ; Chia-Lang Hsu ; Yu-Ching Wu ; Chiun Hsu ; Hsuan-Cheng Huang ; Da-Liang Ou ; Hsueh-Fen JuanSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusTumor-specific CD8+ T lymphocytes are crucial for anti-cancer immunity but can lose cytotoxic function in the immunosuppressive tumor microenvironment. Immune checkpoint blockade (ICB), like anti-PD-1 therapy, enhance and prolong anti-tumor T cell responses. Despite its widespread clinical use, resistance to ICB develops in some patients, characterized by the proliferation of exhausted T cell (Tex). Here, we establish two single-cell murine hepatocellular carcinoma (HCC) models to explore regulatory network in Tex with ICB resistance. We uncover distinct T cell compositions, including both early and terminal Tex subsets, following prolonged ICB treatment, and reveal the differentiation trajectory of Tex subsets. Finally, we not only identify transcription factor Runx2 and its downstream targets as contributors to T cell exhaustion in both models, but discover ICB response correlates to Runx2 level in human tumor-infiltrating lymphocytes. These findings elucidate Runx2 regulates T cell exhaustion in response to prolonged ICB treatment, influencing ICB effICBency, and suggest potential targets for combination therapy alongside ICB in HCC.
  • 🔗 查看原文

5.GSE308675 乳酸是一种代谢-表观遗传信号,它将高强度间歇训练与以 miRNA 为中心的骨骼肌甲基化组和转录组重塑联系起来 [甲基化微珠芯片]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:metabolic、transcriptome、epigenetic、methylation
  • 📝 描述:Contributors : Lei Zhou ; Radak ZsoltSeries Type : Methylation profiling by arrayOrganism : Mus musculusLactate, a major exercise-derived metabolite, has been proposed to couple cellular metabolism to gene regulation, yet its direct impact on skeletal muscle remains unclear. Male mice underwent six-week interventions (Control, lactate, HIIT, MCT1/2 inhibition, or HIIT+inhibition). We profiled gastrocnemius DNA methylation, mRNA-seq and miRNA-seq, and assessed signaling proteins, metabolites, and running performance. Lactate and HIIT each induced broad, site-specific remodeling of the methylome and transcriptome with substantial overlap at promoter CpGs and among DEGs. Promoter methylation changes showed weak coupling to steady-state mRNA, whereas integrative analyses revealed robust anti-directional miRNA–mRNA networks and enriched for chromatin/epigenetic regulators, identifying a lactate-driven miRNA axis as a proximate regulator of transcriptional output. At the protein level, lactate selectively increased TET2 and DNMT3A and activated PAX7, VEGF, and AKT–S6 signaling, consistent with integrative miRNA–mRNA findings. HIIT increased TET1/2 and DNMT3A with DNMT3B reduction and uniquely enhanced mitochondrial/antioxidant signaling. Blocking MCT1/2 abrogated HIIT-induced methylome and miRNA remodeling and blunted transcriptomic and protein adaptation, demonstrating that intact lactate flux is required for exercise-evoked epigenetic and transcriptomic reprogramming. Despite molecular convergence, chronic lactate did not improve running performance, indicating that lactate is necessary but not sufficient for the full physiological adaptation of training. These findings position a lactate–miRNA axis linking metabolic perturbation to epigenetic and transcriptional remodeling in skeletal muscle.
  • 🔗 查看原文

6.GSE297753 MEK抑制剂增强KRAS突变型肺癌放射治疗后的抗肿瘤免疫

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、immunity、KRAS
  • 📝 描述:Contributors : Yawen Zheng ; Meili SunSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculus24 hours after the designated treatment, the LLC cells in four groups cultured in a 60 mm dish underwent two washes with PBS. Subsequently, 1 ml of TRIzol reagent was introduced. The solution was pipetted until it appeared clear, after which the mixture was transferred to an EP tube and stored at -80°C. The samples were then transported to BGI on dry ice for gene sequencing. Sequencing commenced once the samples successfully passed quality control assessments.
  • 🔗 查看原文

7.GSE313407 成年小鼠受控皮层冲击视觉空间转录组学

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:spatial、Visium、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Savannah K Kounelis-Wuillaume ; Andrew M Frank ; Camille Alba ; Gauthaman Sukumar ; Matthew D Wilkerson ; Clifton L Dalgard ; Martin L DoughtySeries Type : OtherOrganism : Mus musculusHere we investigated the topographical relationship of early transcriptional responses to a single, focal TBI in mice by controlled cortical impact (CCI). Guided by the presence of the anterior commissure (AC) in coronal sections at the rostro-caudal point of impact, we compared gene expression changes in the neocortex (CTX) and corpus callosum-external capsule (CC-EC), striatum (STR) and AC. Injury-induced gene expression changes were detected in the CTX, CC-EC and STR but not AC and were principally segregated based on cytoarchitecture, and secondarily by proximity to the site of impact. Additionally, unbiased spatial clustering revealed a positive relationship between proximity to the impact and the number of acutely differentially expressed genes within the laminar CTX. Next, we examined the effects of systemic depletion of neutrophils and monocytes on spatial gene expression changes in the injured brain.
  • 🔗 查看原文

8.GSE169182 通过单核甲基化测序研究大脑衰老的表观遗传特征 [CP-9mo-m-022]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:aging、sequencing、epigenetic、methylation
  • 📝 描述:Contributors : Wei Tian ; Anna Bartlett ; Jordan Altshul ; Rosa Gomez Castanon ; Joseph R Nery ; Jacinta D Lucero ; Julia K Osteen ; Huaming Chen ; M M Behrens ; Joseph R EckerSeries Type : Methylation profiling by high throughput sequencingOrganism : Mus musculusIllustrating aging effects on the epigenomic features of brain is critical to understand brain functional decline and neurodegeneration. Single nucleus methylation sequencing was applied to brain regions of mouse at the age of 2, 9 and 18 months. We use these data to identify the epigenomic changes with aging in mouse brains.
  • 🔗 查看原文

9.GSE313718 精准纳米疗法重塑肿瘤相关巨噬细胞以逆转胰腺癌中的免疫抑制 [scRNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、macrophage、scRNA
  • 📝 描述:Contributors : Yunching Chen ; Hsin-Mei LeeSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusPancreatic ductal adenocarcinoma (PDAC) is characterized by an immunosuppressive stroma rich in tumor-associated macrophages (TAMs) that limit the therapeutic efficacy. We introduce a TAM-targeted nanotherapy platform that selectively delivers either a CSF1R inhibitor or the STING agonist cGAMP to immunosuppressive TAMs. While CSF1R inhibitor–loaded nanoparticles efficiently depleted TAMs and produced moderate antitumor effects, TAM-targeted cGAMP nanoparticles reprogrammed TAMs into immune-stimulating effectors. This reprogramming normalized aberrant vasculature, alleviated desmoplasia, and enhanced infiltration and activation of cytotoxic immune cells. In combination with gemcitabine, PD-1 checkpoint blockade, or CAR-NK cell therapy, TAM-targeted STING activation provided an in situ immunostimulatory signal that markedly improved antitumor efficacy in preclinical PDAC models. Ex vivo efficacy in human PDAC tissues and a favorable safety profile show the translational potential of this TAM-targeted nanotherapy to overcome the immune desert of PDAC.
  • 🔗 查看原文

10.GSE314074 免疫基因多样性和 STING1 变异体在不同遗传祖先人群中塑造癌症免疫力

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、immune、immunity
  • 📝 描述:Contributors : Xiaowen Hu ; Jie Huang ; Zhongyi Hu ; Lin ZhangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensAs human populations migrated to diverse geographical regions, they encountered varying pathogens, leading to pronounced natural selection pressures on the immune system. Analysis of nonsynonymous single nucleotide polymorphisms (nsSNPs) across major geographically structured populations showed greater variation in immune-related genes than in non-immune genes, consistent with pathogen-driven selection, whereas cancer-related genes exhibited lower variation, reflecting evolutionary conservation of critical cellular functions. We prioritized nsSNPs in pattern recognition receptor genes based on population diversity and their association with type I interferon activity. Among the top-ranked variants were rs11554776, rs78233829, and rs7380824 in STING1, which demonstrated functional impacts on intrinsic cGAS-STING1-IFN signaling in cancer cells and potential influences on tumor immunity. We further conducted a genome-wide characterization of nsSNPs in immune-related genes across genetic ancestry populations and established a publicly accessible database. Our study suggests that genetic ancestry-related germline variations may influence cancer immunity and treatment, supporting their consideration in personalized medicine.
  • 🔗 查看原文

💡 该来源还有 84 条内容,详见 文末

🧪 博客更新 (6条)

详细内容(全部6条)

1.RoCK 和 ROI——单细胞转录组学,可对选定的转录本进行多重富集和区域特异性测序

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、single-cell、transcriptomics、enrichment
  • 📝 描述:Enhanced targeted capture and region-specific sequencing improve single-cell RNA sequencing resolution revealing key transcripts and regions of interest across diverse cell types…
  • 🔗 查看原文

2. 技术进步揭开了线粒体DNA之谜——我们的“另一个”基因组

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:genome
  • 📝 描述:Single cell RNA sequencing reveals how mitochondrial DNA mutation burden shapes metabolic flexibility and cancer growth, highlighting mtDNA as an active contributor to leukemogenesis…
  • 🔗 查看原文

3. RNAConnect推出UltraMarathonRT® Direct RNA-Seq试剂盒,推进基于纳米孔的天然RNA测序技术

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing
  • 📝 描述:A new kit improves direct RNA sequencing on Oxford Nanopore, delivering longer reads, more isoforms, and preserved RNA modifications through gentle low-temperature reverse…
  • 🔗 查看原文

4. 一项新研究揭示了泡菜如何增强免疫系统

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune
  • 📝 描述:Kimchi may do far more than add flavor to meals—it could help fine-tune the human immune system. A clinical study using advanced single-cell genetic analysis found that regular kimchi consumption strengthens immune defenses while preventing harmful overreactions. Researchers observed improved activity in key immune cells, with effects varying depending on fermentation methods.
  • 🔗 查看原文

5. 一项新的检测方法有望在症状出现前发现阿尔茨海默病。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:Alzheimer
  • 📝 描述:Scientists at Northern Arizona University are developing a promising new way to detect Alzheimer’s disease earlier than ever before—by tracking how the brain uses sugar. Using tiny particles in the blood called microvesicles, researchers may soon be able to gather brain-specific information without invasive procedures. If successful, this approach could transform Alzheimer’s diagnosis, monitoring, and even prevention, much like how doctors manage heart disease today.
  • 🔗 查看原文

6. 人工智能不仅能检测癌症,还能了解你的个人信息。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer
  • 📝 描述:AI tools designed to diagnose cancer from tissue samples are quietly learning more than just disease patterns. New research shows these systems can infer patient demographics from pathology slides, leading to biased results for certain groups. The bias stems from how the models are trained and the data they see, not just from missing samples. Researchers also demonstrated a way to significantly reduce these disparities.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
cancer20
RNA-seq12
single-cell11
sequencing9
immune9
T cell8
resistance8
epigenetic8
methylation6
transcriptomics5
metabolic5
carcinoma5
scRNA4
Alzheimer4
tumor4
transcriptome4
genome3
regex:onco(logylogist
aging3
immunity2

📎 更多内容

🧬 数据前沿 其他内容 (84条)

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