科研日报 2026-03-01

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📅 Daily Report - 2026-03-01

今日筛选出 61 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: CAR-Macrophage疗法通过重塑肿瘤免疫微环境展现抗肿瘤潜力;空间转录组学揭示发育中肝脏微环境的单细胞分辨率特征。

主要方向

  • 肿瘤免疫治疗:CAR-Macrophage、CAR-T细胞策略、LAG3靶向IL-2、Nrf2/Keap1通路调控。
  • 肿瘤微环境与耐药机制:GABA对免疫治疗抵抗的影响、RBX1促进肾癌侵袭与耐药、肿瘤营养压力诱导的耐药状态、FGFBP2在胰腺癌进展中的作用。
  • 细胞代谢与疾病:酮饮食对胰腺癌的敏感化、线粒体ROS调控与化疗耐药、乳酸与组蛋白修饰在视网膜中的作用、Lisinopril对ALS的潜在治疗策略。

技术亮点

  • 多模态空间转录组学技术应用于发育生物学研究。
  • scRNA-seq与scATAC-seq联合应用于血管平滑肌细胞状态轨迹研究。

🧪 博客更新

今日焦点: 科学家发现打破遗传密码基本规则的微生物;美国心脏协会预警女性心血管疾病风险激增。

主要方向

  • 单细胞多模态测序技术(染色质可及性与基因表达)
  • RNA测序数据分析的自动化与简化
  • 女性心血管疾病发病率预测
  • 微生物遗传密码研究

技术亮点

  • SUM-seq:实现单细胞超高通量多重染色质可及性与基因表达测序。
  • REDAC:通过自然语言查询简化RNA测序数据分析流程。

📚 分类浏览

🧬 数据前沿 (57条)

详细内容(前10条)

1.GSE275837 嵌合抗原受体-巨噬细胞外囊泡重编程免疫微环境用于癌症治疗 [scRNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、immune、macrophage、antigen、scRNA
  • 📝 描述:Contributors : Minghe Zhang ; Peng Xia ; Yufeng YuanSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusImmunotherapy has become a new milestone in cancer treatment, with chimeric antigen receptor (CAR)-T cell therapy proven to be an effective method for treating hematologic malignancies. However, its efficacy in solid tumors remains limited. Macrophages, the most infiltrative innate immune cells in the tumor microenvironment, are being genetically engineered to express CARs, rapidly emerging as a promising new therapy for non-hematologic malignancies. Yet, CAR- Macrophages therapy is associated with unique acute toxicities and is susceptible to immunosuppressive mechanisms. Here, we propose using CAR macrophages-derived extracellular vesicles (CAR-MEVs) as an optimization of CAR-Ms therapy. Compared to CAR-Ms cells, CAR-MEVs exhibit lower toxicity and enhanced drug delivery capabilities. In an in vivo liver cancer model, CAR-MEVs administration proved safer than CAR-Ms therapy, reducing tumor burden and prolonging overall survival. In a humanized mouse model, CAR-MEVs further demonstrated the ability to induce a pro-inflammatory tumor microenvironment and enhance anti-tumor T cell activity. Mechanistically, CAR-MEVs target tumor cells, inducing immunogenic cell death (ICD) and subsequently leading to neutrophil infiltration in tumor tissues. We demonstrated that the anti-tumor effects of CAR-MEVs depend on neutrophils and are partially reliant on inducible nitric oxide synthase (iNOS). This study supports the potential of macrophage extracellular vesicles as a novel therapeutic approach for solid tumors.
  • 🔗 查看原文

2.GSE273952 GABA 促进 TLS 阳性肿瘤患者对免疫疗法的耐药性 [空间转录组学]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:regex:immuno(logy|therapy|suppression)、resistance、spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Isaias Hernandez-Verdin ; Anne Calvez ; Antoine Bougoüin ; Cheng-Ming Sun ; Asmat Ullah ; Virgine Verkarre ; Yann-Alexandre Vano ; Lucile Vanhersecke ; Alban Bessede ; Jean-Philippe Guegan ; Antoine Italiano ; Stéphane Oudard ; Catherine Sautès-Fridman ; Wolf H FridmanSeries Type : OtherOrganism : Homo sapiensTertiary lymphoid structures (TLS) in the tumour microenvironment have been linked to positive clinical outcomes and responses to immune checkpoint inhibitors (ICI) in various cancers, including clear cell renal cell carcinoma (ccRCC) and soft tissue sarcoma (STS). However, a significant proportion of patients do not respond to ICI despite the presence of TLS. Our study unravels gamma-aminobutyric acid (GABA), a neurotransmission inhibitor, as a modulator of ICI resistance in TLS-positive tumours. By leveraging household and public multi-omic data, we demonstrated that GABA is upregulated in TLS-positive ccRCC and STS tumours from non-responders to ICI. In metastatic ccRCC, TLS from non-responders were distinguished from responders by a dysfunctional immune activation and a close proximity to GABA-producing proximal tubule-like tumour cells. The addition of a competitive inhibitor of GABA synthesis, 3-mercaptopropionic acid, significantly improved tumour control when compared to anti-PD1 alone when intra-tumourally injected in a mouse model of STS. Overall, our findings highlight GABA as a novel determinant of non-response to ICI in tumours harboring TLS, suggesting potential new approaches for patient stratification and personalized therapeutic strategies that could be applicable beyond metastatic ccRCC and STS.
  • 🔗 查看原文

3.GSE306606 多模态空间转录组学以单细胞分辨率揭示人类肝脏发育微环境

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:single-cell、spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributor : Carolyn SangokoyaSeries Type : OtherOrganism : Homo sapiensA comprehensive understanding of the fetal liver niche during development offers a lens into a unique natural multifunctional multicellular environment. Here we use a spatial transcriptomic and histologic analysis approach to identify and histologically confirm RNA-based markers in human fetal liver tissue within a key developmental window in which the liver is a major site of hematopoiesis, just prior to the increased growth phase of the final trimester. Within this window, the fetal liver niche encompasses the unique coexistence of cells of both endodermal and mesenchymal origin with the unique environment fostering hematopoietic cell development as well as hepatocyte function. Single-cell resolution spatial imaging reveals epithelial, hematopoietic, endothelial, and stromal cell populations in shared cellular microenvironments. Here, our single-cell spatial transcriptomic and imaging approach enables, captures, and confirms the complex phenomena of ductal plate expression and CXCL12 homing to the hematopoietic stem cell niche (HSC) in the liver. An RNA-based understanding of the functional diversity and in situ spatial organization of the fetal liver niche is critical for adequate validation and authentication in recapitulating and re-engineering these regenerative environments in vitro.
  • 🔗 查看原文

4.GSE318757 SynNotch-iNOS CAR-巨噬细胞重塑肿瘤免疫微环境,并通过CD4+ T细胞依赖性机制发挥抗肿瘤功效

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、immune、T cell
  • 📝 描述:Contributors : Yuling Hong ; Buyun Dang ; Shih-Chin ChengSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusBackground: Chimeric antigen receptor T-cell (CAR-T) therapy shows limited efficacy against solid tumors due to the immunosuppressive tumor microenvironment (TIME). Macrophages possess superior infiltration capabilities, yet their therapeutic potential remains under-realized. Methods: We engineered a synNotch-iNOS CAR-macrophage (CAR iNOS-M) that releases nitric oxide (NO) upon CD19 recognition. Its efficacy was evaluated in syngeneic, immunocompetent murine models of metastatic melanoma. Results: CAR iNOS-M therapy effectively reprogrammed the pulmonary TIME, inducing potent antitumor responses independent of CD8+ T cells but strictly dependent on CD4+ T cells. Mechanistically, CAR iNOS-M treatment led to a significant reduction in pro-tumorigenic lung interstitial macrophages (IMs), subsequently decreasing platelet factor 4 (PF4) levels. This disruption of the PF4 signaling axis inhibited the polarization of immunosuppressive Th1-Tregs, alleviating T-cell exhaustion. Conclusions: This study delineates a novel indirect mechanism for CAR-M, shifting the focus from direct phagocytosis to strategic TIME remodeling, providing a foundation for treating solid tumors.
  • 🔗 查看原文

5.GSE318979 利用 LAG3 靶向的白细胞介素-2 靶向肿瘤特异性 T 细胞可防止 T 细胞耗竭并重新激活抗肿瘤免疫力

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、immunity、T cell
  • 📝 描述:Contributors : Xiaohong Yu ; Huiping LiaoSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusLAG3 is a critical inhibitory receptor that is highly enriched on exhausted T cells within the tumor microenvironment (TME), where it functions as a key driver of T cell exhaustion-an archetypal barrier to robust antitumor immunity. In a colon cancer model, we identified that LAG3+CD8+ tumor-infiltrating lymphocytes (TILs) constitute the predominant tumor-specific T cells but exhibit defective IL2 signaling. To address whether exogenous IL2 replenishment unpins their dysfunction, we engineered LAG3-LaIL2 (low-affinity IL2), a fusion protein delivering IL2 selectively to LAG3+CD8+ TILs. LAG3-LaIL2 expanded pre-exhausted tumor-specific CD8+ T cells, reprogrammed their exhaustion trajectory toward an intermediate effector state, and prevented terminal exhaustion, leading to tumor regression and prolonged survival in mice. Mechanistically, LAG3-LaIL2 restored IL2R-JAK3-STAT5 signaling by upregulating the high-affinity IL2 receptor subunit CD122, thereby rejuvenating TIL functionality. Furthermore, LAG3-LaIL2 amplified tumor-specific effector and memory T cells in draining lymph nodes, enabling systemic antitumor immunity against distal tumors and preventing tumor recurrence. Collectively, our findings validate LAG3-LaIL2 as a precision immunotherapeutic agent that specifically targets exhausted TILs, concomitantly enhancing therapeutic efficacy and safety by restricting IL2 exposure to non-target cells. This strategy provides a translatable approach to overcoming T cell exhaustion in solid tumors, offering a promising avenue to improve clinical outcomes for cancer patients
  • 🔗 查看原文

6.GSE304059:RBX1促进肾透明细胞癌侵袭、免疫抑制和舒尼替尼耐药的机制研究

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、immune、resistance
  • 📝 描述:Contributors : Yi Yu ; shaochao Zhan ; Yuchen Li ; Zhaohui Guo ; Ting Li ; Chengjian Xie ; Tao YangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensClear cell renal cell carcinoma (ccRCC) often exhibits drug resistance, highlight_x0002_ing the need to identify novel therapeutic targets. RING box protein 1 (RBX1), an E3 ubiquitin ligase associated with tumor progression, has an unclear role in ccRCC. This study investigated the clinical significance, molecular mech_x0002_anisms, and role of RBX1 in treatment resistance through multi-omics and functional analyses. Analysis of The Cancer Genome Atlas (TCGA) data revealed that RBX1 is overexpressed in ccRCC and is associated with advanced dis_x0002_ease stages and poor prognosis. Functional enrichment studies linked RBX1 to processes such as cytoskeletal remodeling,extracellular matrix deposition, and lipid metabolism disorders.Additionally, tumors with high RBX1 expression exhibit an immunosuppressive microenvironment characterized by increased reg_x0002_ulatory T cells (Tregs) and elevated expression of immune checkpoint markers (LAG3/Galectin-9). In vitro experiments confirmed that RBX1 promotes ccRCC proliferation, migration, and invasion while conferring resistance to the standard targeted therapy drug sunitinib. Our findings suggest that RBX1 may serve as a key driver of ccRCC invasiveness and immune suppression. These discoveries indicate that RBX1 has the potential to become a prognostic biomarker and a target for precision therapy in advanced ccRCC.
  • 🔗 查看原文

7.GSE282444 炎症性肠病中肠上皮细胞的表观遗传记忆 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:RNA-seq、epigenetic、regex:intestin(e|al)
  • 📝 描述:Contributors : Brooke R Druliner ; Feda HamdanSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensThe pathogenesis of Inflammatory Bowel Disease (IBD) is a multifactorial process characterized by inflammation and damage to the intestinal barrier, which is made up of intestinal epithelial cells (IECs). Since IBD is a remitting and relapsing disease, we postulated that epigenetic memory exists in IECs following an inflammatory encounter. The objective of this study was to uncover the mechanisms of a retained altered IEC epigenetic landscape in the context of IBD. We have generated adult stem cell organoids (containing all epithelial cell lineages) from patients with Ulcerative Colitis (UC); two organoid lines per patient were propagated: 1) from a site of active inflammation and from the same patient, and 2) a never inflamed region. We performed Assay for Transposase-Accessible Chromatin using sequencing (ATAC-seq) and bulk RNA-seq on each organoid line. Established bioinformatic pipelines were used to determine significantly different chromatin accessibility and differentially expressed genes. Functional significance of the open chromatin regions was assessed by pathway and motif analysis. Treatment with TNF-alpha (10 and 100ng/ml) for 24 hours on the organoids was performed to determine re-activation of pro-inflammatory genes. This study shows for the first time that epithelial cells derived from organoids of IBD patients retain an epigenetic memory of the prior inflammatory state.
  • 🔗 查看原文

8.GSE282442 炎症性肠病中肠上皮细胞的表观遗传记忆 [ATAC-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:ATAC-seq、epigenetic、regex:intestin(e|al)
  • 📝 描述:Contributors : Brooke R Druliner ; Feda HamdanSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensThe pathogenesis of Inflammatory Bowel Disease (IBD) is a multifactorial process characterized by inflammation and damage to the intestinal barrier, which is made up of intestinal epithelial cells (IECs). Since IBD is a remitting and relapsing disease, we postulated that epigenetic memory exists in IECs following an inflammatory encounter. The objective of this study was to uncover the mechanisms of a retained altered IEC epigenetic landscape in the context of IBD. We have generated adult stem cell organoids (containing all epithelial cell lineages) from patients with Ulcerative Colitis (UC); two organoid lines per patient were propagated: 1) from a site of active inflammation and from the same patient, and 2) a never inflamed region. We performed Assay for Transposase-Accessible Chromatin using sequencing (ATAC-seq) and bulk RNA-seq on each organoid line. Established bioinformatic pipelines were used to determine significantly different chromatin accessibility and differentially expressed genes. Functional significance of the open chromatin regions was assessed by pathway and motif analysis. Treatment with TNF-alpha (10 and 100ng/ml) for 24 hours on the organoids was performed to determine re-activation of pro-inflammatory genes. This study shows for the first time that epithelial cells derived from organoids of IBD patients retain an epigenetic memory of the prior inflammatory state.
  • 🔗 查看原文

9.GSE273829 GABA 促进 TLS 阳性肿瘤患者对免疫疗法的耐药性 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:regex:immuno(logy|therapy|suppression)、resistance、RNA-seq
  • 📝 描述:Contributors : Isaias Hernandez-Verdin ; Anne Calvez ; Antoine Bougoüin ; Cheng-Ming Sun ; Asmat Ullah ; Virgine Verkarre ; Yann-Alexandre Vano ; Lucile Vanhersecke ; Alban Bessede ; Jean-Philippe Guegan ; Antoine Italiano ; Stéphane Oudard ; Catherine Sautès-Fridman ; Wolf H FridmanSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensTertiary lymphoid structures (TLS) in the tumour microenvironment have been linked to positive clinical outcomes and responses to immune checkpoint inhibitors (ICI) in various cancers, including clear cell renal cell carcinoma (ccRCC) and soft tissue sarcoma (STS). However, a significant proportion of patients do not respond to ICI despite the presence of TLS. Our study unravels gamma-aminobutyric acid (GABA), a neurotransmission inhibitor, as a modulator of ICI resistance in TLS-positive tumours. By leveraging household and public multi-omic data, we demonstrated that GABA is upregulated in TLS-positive ccRCC and STS tumours from non-responders to ICI. In metastatic ccRCC, TLS from non-responders were distinguished from responders by a dysfunctional immune activation and a close proximity to GABA-producing proximal tubule-like tumour cells. The addition of a competitive inhibitor of GABA synthesis, 3-mercaptopropionic acid, significantly improved tumour control when compared to anti-PD1 alone when intra-tumourally injected in a mouse model of STS. Overall, our findings highlight GABA as a novel determinant of non-response to ICI in tumours harboring TLS, suggesting potential new approaches for patient stratification and personalized therapeutic strategies that could be applicable beyond metastatic ccRCC and STS.
  • 🔗 查看原文

10. GSE321762 血管平滑肌细胞状态轨迹介导冠心病风险的分子机制[scRNA-seq 和 scATAC-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:scRNA、scATAC
  • 📝 描述:Contributors : Daniel Y Li ; Thomas QuertermousSeries Type : Genome binding/occupancy profiling by high throughput sequencing ; Expression profiling by high throughput sequencingOrganism : Mus musculusVascular smooth muscle cells contribute to heritable coronary artery disease risk and undergo complex transitions to multiple disease-related phenotypes. To investigate the genetic basis of these trajectories, we develop a dense timecourse single cell transcriptomic and epigenetic map of atherosclerosis in a murine disease model accompanied by high-plex in situ spatial data. Using temporal data and probabilistic fate modeling, we identify key transcription factors that drive cell state changes through a combination of network-based prioritization and in silico transcription factor perturbation. Parallel knockout studies of validated coronary artery disease gene Tcf21 uncover its molecular mechanisms in smooth muscle cell transition, due in part to a role regulating the transition of smooth muscle cells in the secondary heart field. Integrating the murine atlas with human coronary artery disease genetics pinpoint smooth muscle cell phenotypes that mediate disease risk, highlighting causal disease mechanisms. Together, these studies resolve atherosclerosis trajectories at single cell resolution and identify genetic causal transcriptomic and epigenomic mechanisms of coronary artery disease risk.
  • 🔗 查看原文

💡 该来源还有 47 条内容,详见 文末

🧪 博客更新 (4条)

详细内容(全部4条)

1. SUM-seq——单细胞超高通量多重染色质可及性和基因表达测序

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、single-cell
  • 📝 描述:SUM-seq enables scalable single cell chromatin accessibility and RNA sequencing, supporting high throughput multimodal profiling for large atlas projects and regulatory network analysis…
  • 🔗 查看原文

2. 聊天机器人简化了RNA测序数据分析

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing
  • 📝 描述:REDAC enables accessible RNA sequencing expression analysis through natural language queries, automated normalization and differential testing, and AI guided pathway…
  • 🔗 查看原文

3. 美国心脏协会警告称,到2050年,60%的美国女性将患有心血管疾病。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cardiovascular
  • 📝 描述:Heart disease is on track to tighten its grip on American women. New projections from the American Heart Association warn that over the next 25 years, cardiovascular disease will rise sharply, driven largely by a surge in high blood pressure, diabetes, and obesity. By 2050, nearly 60% of women in the U.S. could have high blood pressure, and close to one in three women ages 22 to 44 may already be living with some form of heart disease.
  • 🔗 查看原文

4. 科学家发现一种微生物,它打破了遗传密码的一条基本规则。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:regex:micro(b|be|bial|organism)
  • 📝 描述:Scientists at UC Berkeley have discovered a microbe that bends one of biology’s most sacred rules. Instead of treating a specific three-letter DNA code as a clear “stop” signal, this methane-producing archaeon sometimes reads it as a green light—adding an unusual amino acid and continuing to build the protein. The result is a kind of genetic coin flip: two different proteins can emerge from the same code, influenced partly by environmental conditions.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
cancer11
RNA-seq8
metabolic8
ChIP-seq6
tumor5
sequencing4
T cell4
resistance4
single-cell3
immune3
scRNA3
transcriptome3
inflammation3
macrophage2
metabolism2
spatial2
spatial transcriptomics2
transcriptomics2
KRAS2
carcinoma2

📎 更多内容

🧬 数据前沿 其他内容 (47条)

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