科研日报 2026-04-02

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📅 Daily Report - 2026-04-02

今日筛选出 116 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: 空间转录组学技术在肝癌、口腔癌等复杂疾病的精准解析中展现出突破性潜力。

主要方向

  • 肿瘤免疫:探索抗体疗法、HIF-2α抑制剂、基因编辑等对肿瘤免疫细胞(如T细胞、巨噬细胞)的影响机制,以及肿瘤微环境中的免疫抑制因素(如TEs、单核细胞)。
  • 疾病机制:解析衰老、癌症(肝癌、口腔癌、结直肠癌、肾细胞癌、卵巢癌)、败血症、骨关节炎、阿尔茨海默病等多种疾病的分子机制,涉及表观遗传调控、基因组稳定性、信号通路激活、细胞通讯等。
  • 胚胎发育:研究早期胚胎发育过程中的表观遗传调控,如ZGA和DNA完整性。

技术亮点

  • 多模态组学整合:结合单细胞RNA测序、空间转录组学、ATAC-seq、TCR-seq等技术,实现对细胞异质性、空间分布及基因组调控的全面解析。
  • 3D体外模型:构建3D免疫肿瘤基质屏障模型,用于评估T细胞浸润和细胞毒性。

🧪 博客更新

今日焦点: 新型无创技术实现对斑秃疾病活动和治疗反应的RNA测序追踪;揭示DNA动态折叠结构在基因调控和癌症发生中的潜在作用。

主要方向

  • 斑秃(Alopecia Areata)的非侵入性疾病监测与患者分层
  • DNA三维结构动态变化及其在基因表达调控中的功能解析

技术亮点

  • 首次利用无创胶带条RNA测序技术监测皮肤病变
  • 发现DNA动态折叠是基因开关的重要机制

📚 分类浏览

🧬 数据前沿 (114条)

详细内容(前10条)

1.GSE312782 单细胞转录组学揭示牛传入淋巴中的树突状细胞亚群以及对卡介苗疫苗的免疫细胞反应

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:immune、lymph、dendritic cell、regex:lymph(o|atic)?、transcriptomics
  • 📝 描述:Contributors : Rachrapee Sukmak ; Heather A Mathie ; Richard S Taylor ; Jianxuan Sun ; Barbara Shih ; Charlotte R Bell ; Mark Gray ; Daniel J Macqueen ; Jayne C HopeSeries Type : Expression profiling by high throughput sequencingOrganism : Bos taurusBovine tuberculosis (bTB), caused by Mycobacterium bovis (M. bovis), remains an ongoing global issue for human and animal health. The Bacille Calmette Guerin (BCG) vaccine offers immunity against bTB, however, the mechanisms underlying the heterogenous protective response, including variations across species and age groups requires further investigation. In this study, we focused on dendritic cells (DCs), which are crucial for adaptive immune stimulation following BCG vaccination. By capturing afferent lymph DCs (ALDCs) migrating from the skin, we investigated shifts in DC profiles and potential subset-specific functions in response to BCG vaccination. Single-cell RNA sequencing (scRNA-seq) was performed on samples from n=3 Bos taurus calves before and after BCG vaccination, capturing the transcriptome of 20,761 individual cells expressing on average 3,036 unique genes, which were clustered into ALDCs, monocytes, T-cells, B-cells and NK cells. The ALDC subsets were further identified as cDC1 and cDC2. In homeostasis, ALDCs expressing potential subset-specific genes for cDC1, including ENSBTAG00000056208 (LINE-1), STX4, NEBL, ADAM23, ART3, and cDC2; FN1, PSPH, FGL2, SHOX2, and WWTR1 were identified. Following BCG vaccination, while both subsets exhibited gene expression signatures indicative of antigen-presenting function, migration, and DC maturation, cDC1 showed upregulation of genes consistent with metabolic alterations and lymphocyte recruitment, whereas cDC2 upregulated genes consistent with inflammatory responses. Overall, this study comprehensively describes the transcriptomic landscape of bovine ALDC subsets, providing evidence for the importance of subset-specific genes to BCG vaccination responses, while advancing knowledge on how ALDCs contribute to protective immunity against bTB.
  • 🔗 查看原文

2.GSE314480 SIRT7 将 H3K36ac 表观遗传调控与衰老小鼠睾丸中的基因组维持联系起来 [ATAC-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:aging、ATAC-seq、genome、epigenetic
  • 📝 描述:Contributors : A Guitart-Solanes ; M Romero ; I Fernandez-Duran ; A Gamez-Garcia ; B A Niedenberger ; C Madrid-Sandín ; N Spears ; I Roig ; C B Geyer ; A Vaquero ; K Schindler ; B N VazquezSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusReproductive aging is an increasing health concern affecting family planning and overall well-being. While extensively studied in females, the mechanisms driving male reproductive aging remain largely unexamined. Here we found that mammalian Sirtuin 7 (SIRT7) sustains spermatogenesis in an age-dependent manner through the control of histone 3 lysine 36 acetylation (H3K36ac). SIRT7 deficiency in mice resulted in increased levels of H3K36ac in spermatogonia and spermatocytes, a pattern also observed during natural testicular aging. SIRT7 deficiency altered chromatin accessibility, which was directly linked to H3K36ac activity in a germ cell line, and increased vulnerability to genotoxic stress. Importantly, undifferentiated spermatogonia, which are required for continuous sperm production, decreased prematurely in Sirt7-/- mice and showed enhanced genome damage accumulation during aging or under acute environmental stress. These changes were concurrent with age-dependent defects in double strand break (DBS) repair and partial meiotic arrest. Taken together, our results indicate that SIRT7 connects H3K36ac epigenetic regulation to long-term genome stability in male germ cells, ensuring steady-state spermatogenesis during the lengthy male reproductive lifespan.
  • 🔗 查看原文

3.GSE253962 人类肝细胞癌的空间转录组学

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Joanne O’Rourke ; Daniel A Patten ; Dean Kavanagh ; Catherine Willoughby ; Josep Llovet ; Helen Reeves ; Peter Hewett ; Neena Kalia ; Tahir Shah ; Yuk T Ma ; Kelly Hunter ; Jack L McMurray ; Joe Flint ; Owen Cain ; Derek Mann ; Amy Naylor ; Victoria Heath ; Roy Bicknell ; Shishir ShettySeries Type : OtherOrganism : Homo sapiensBackground: Immune checkpoint inhibition is now standard of care for patients with advanced hepatocellular cancer (HCC) and yet many patients remain resistant to this therapy. The presence of innate immune populations in the tumour microenvironment (TME) have been implicated in regulating the efficacy of these agents. CLEC14A has previously been shown to be upregulated on tumour endothelial cells and we found endothelial upregulation of CLEC14A in a subset of HCC tumours as well as acute liver injuries. This led us to explore the role of CLEC14A in neutrophil recruitment, critical populations in both liver pathologies.Methods:Immunohistochemical analysis was undertaken of CLEC14A in human liver tissue across a range of liver diseases and HCC. CLEC14A regulation and function was then explored in primary human liver endothelial cells including responses to shear stress and flow based adhesion assays. Liver injury models were undertaken CLEC14A knockout mice followed by intravital microscopy. Finally, CLEC14A expression was studied in both publically available HCC data sets and through spatial transcriptomics of HCC tissue.Findings:We found that CLEC14A mediates neutrophil recruitment across liver endothelium in both in vitro and in vivo settings. This process appears to be independent of its interaction with its known ligand Multimerin-2. Additionally, we demonstrated a correlation of CLEC14A expression in human HCC with a neutrophil transcriptional signature.Interpretation:This study unveils a new link between a tumour angiogenic receptor and neutrophil infiltration to the liver and highlights the potential of combining current immunotherapy in HCC with agents targeting the CLEC14A pathway.
  • 🔗 查看原文

4.GSE316624 抗SLC7A11单克隆抗体通过对结直肠癌中CD4+和CD8+T细胞的双重作用抑制肿瘤进展[RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、antibody、RNA-seq
  • 📝 描述:Contributors : Jichang Li ; Yuhang Yin ; Haopeng Hong ; Xiaoxue Pan ; Chang A Meng ; Jing Zhu ; Xin Wang ; Yucun Liu ; Pengyuan Wang ; Shanwen ChenSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensSLC7A11 is aberrantly overexpressed in numerous solid tumors, including colorectal cancer (CRC), where it serves as a key regulator of cystine import and ferroptosis. However, its therapeutic potential and feasible targeting strategies remain less well understood. Our findings reveal that elevated SLC7A11 expression is critical for the activation of regulatory T cells and is associated with advanced tumor grade, lymphatic metastasis, and poor prognosis in CRC patients. A monoclonal antibody that blocks the transporter function of SLC7A11 induces apoptosis across multiple cancer cell types and demonstrates significant therapeutic efficacy in preclinical mouse models of colon cancer. Additionally, inhibition of SLC7A11 reprograms the tumor immune microenvironment, transforming it from a ‘cold’ to a more immunogenic state by suppressing regulatory T cell activation. These results highlight the dual role of SLC7A11 in modulating CD4+ and CD8+ T cell responses, positioning SLC7A11 as a crucial orchestrator of tumor immune evasion and a promising therapeutic target.
  • 🔗 查看原文

5.GSE316623 抗SLC7A11单克隆抗体通过对结直肠癌中CD4+和CD8+T细胞的双重作用抑制肿瘤进展[scRNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、antibody、scRNA
  • 📝 描述:Contributors : Jichang Li ; Yuhang Yin ; Haopeng Hong ; Xiaoxue Pan ; Chang A Meng ; Jing Zhu ; Xin Wang ; Yucun Liu ; Pengyuan Wang ; Shanwen ChenSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusSLC7A11 is aberrantly overexpressed in numerous solid tumors, including colorectal cancer (CRC), where it serves as a key regulator of cystine import and ferroptosis. However, its therapeutic potential and feasible targeting strategies remain less well understood. Our findings reveal that elevated SLC7A11 expression is critical for the activation of regulatory T cells and is associated with advanced tumor grade, lymphatic metastasis, and poor prognosis in CRC patients. A monoclonal antibody that blocks the transporter function of SLC7A11 induces apoptosis across multiple cancer cell types and demonstrates significant therapeutic efficacy in preclinical mouse models of colon cancer. Additionally, inhibition of SLC7A11 reprograms the tumor immune microenvironment, transforming it from a ‘cold’ to a more immunogenic state by suppressing regulatory T cell activation. These results highlight the dual role of SLC7A11 in modulating CD4+ and CD8+ T cell responses, positioning SLC7A11 as a crucial orchestrator of tumor immune evasion and a promising therapeutic target.
  • 🔗 查看原文

6.GSE295691 口腔鳞状细胞癌的多模态分析揭示了与嚼槟榔相关的基因组改变和表达程序[空间转录组学]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、spatial、spatial transcriptomics、transcriptomics
  • 📝 描述:Contributors : Shih-Chi Su ; Lung-Ching Chang ; Shun-Fa YangSeries Type : OtherOrganism : Homo sapiensBetel quid (BQ) chewing is a profound risk for oral squamous cell carcinoma (OSCC) in Southeast Asia. To decipher contributory genomic abnormalities and transcriptional reprogramming in these malignancies, we conducted a multi-omics survey, including exome sequencing of tumor-normal pairs, alone with integrated single-cell and spatial transcriptomics of a set of tumors. In addition to enrichment of significantly altered genes (e.g mutations of TP53 and CHUK, copy gains of MAP3K13 and FADD, copy losses of CDKN2A) and mutational signatures associated with BQ chewing, we demonstrated frequently altered oncogenic pathways (Hippo and p53 signaling) and potential combination therapy opportunities linked to BQ use. Moreover, a shift of tumor microenvironment in BQ-related OSCC, characterized by extensive cell-cell crosstalk and induced tissue hypoxia, dendritic immunosuppression, and endothelial sprouting, was observed. Collectively, these differences in genomic landscape and tumor niche suggest that BQ-positive OSCC could be an etiological subtype different from their BQ-negative counterparts.
  • 🔗 查看原文

7.GSE314213 SIRT7 将 H3K36ac 表观遗传调控与衰老小鼠睾丸中的基因组维持联系起来

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:aging、genome、epigenetic
  • 📝 描述:Contributors : A Guitart-Solanes ; M Romero ; I Fernandez-Duran ; A Gamez-Garcia ; B A Niedenberger ; C Madrid-Sandín ; N Spears ; I Roig ; C B Geyer ; A Vaquero ; K Schindler ; B N VazquezSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusReproductive aging is an increasing health concern affecting family planning and overall well-being. While extensively studied in females, the mechanisms driving male reproductive aging remain largely unexamined. Here we found that mammalian Sirtuin 7 (SIRT7) sustains spermatogenesis in an age-dependent manner through the control of histone 3 lysine 36 acetylation (H3K36ac). SIRT7 deficiency in mice resulted in increased levels of H3K36ac in spermatogonia and spermatocytes, a pattern also observed during natural testicular aging. SIRT7 deficiency altered chromatin accessibility, which was directly linked to H3K36ac activity in a germ cell line, and increased vulnerability to genotoxic stress. Importantly, undifferentiated spermatogonia, which are required for continuous sperm production, decreased prematurely in Sirt7-/- mice and showed enhanced genome damage accumulation during aging or under acute environmental stress. These changes were concurrent with age-dependent defects in double strand break (DBS) repair and partial meiotic arrest. Taken together, our results indicate that SIRT7 connects H3K36ac epigenetic regulation to long-term genome stability in male germ cells, ensuring steady-state spermatogenesis during the lengthy male reproductive lifespan.
  • 🔗 查看原文

8.GSE324039 药理学抑制 HIF-2α 可保护透明细胞肾细胞癌中的 T 细胞转录组

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、T cell、transcriptome
  • 📝 描述:Contributor : Katrine N MadsenSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensBelzutifan is a selective HIF-2α inhibitor currently in clinical trials for clear cell renal cell carcinoma (ccRCC). As belzutifan is being evaluated in combination with immune checkpoint inhibitors, we investigated whether pharmacologic HIF-2α inhibition affects T cell transcriptional programs. Primary human pan T cells isolated from blood from healthy donors and ccRCC patients and tumor-infiltrating T cells were isolated from ccRCC patients. These cells were treated with belzutifan (2 μM, 5 days) vs. control DMSO under hypoxic conditions. RNA sequencing revealed that belzutifan treatment preserved T cell transcriptional programs, supporting the rationale for combining belzutifan with immunotherapy in ccRCC.
  • 🔗 查看原文

9.GSE320258 Pan-Cancer Analysis Reveals Mutation-Driven TE Dysregulation as a Contributor to Immune Suppression [ATAC-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、immune、ATAC-seq
  • 📝 描述:Contributors : Hongjian Qi ; Kai Tian ; Chicheng Ma ; Min Huang ; Yanxiao ZhangSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensSomatic mutations and transposable element (TE) dysregulation are hallmarks of cancer, yet how specific genetic alterations influence TE activity across tumor types remains unclear. Here, we mapped mutation–TE regulatory networks across 9,622 tumors representing 33 TCGA cancer types by integrating RNA-seq, whole-exome, and DNA methylation data. Comparative analysis of tumors with and without mutations identified 275 significant cancer–gene pairs associated with altered TE expression, many of which are transcription factors such as TP53, NSD1 and ARID1A. The changes in TE expression were also inversely correlated with DNA methylation changes in many cases. Unexpectedly, we observed that immune pathway activity is down-regulated when TE expression is induced, and up-regulated when TE is repressed. Functional validation in isogenic ARID1A- and CTNNB1-perturbed models recapitulated the changes in TE activity and immune responses observed in TCGA datasets. Together, these findings reveal mutation-driven TE activity reprogramming as a widespread feature and a potential source for immune modulation in human cancers.
  • 🔗 查看原文

10.GSE320255 泛癌分析揭示突变驱动的转座元件失调是免疫抑制的促成因素 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、immune、RNA-seq
  • 📝 描述:Contributors : Hongjian Qi ; Kai Tian ; Chicheng Ma ; Min Huang ; Yanxiao ZhangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensSomatic mutations and transposable element (TE) dysregulation are hallmarks of cancer, yet how specific genetic alterations influence TE activity across tumor types remains unclear. Here, we mapped mutation–TE regulatory networks across 9,622 tumors representing 33 TCGA cancer types by integrating RNA-seq, whole-exome, and DNA methylation data. Comparative analysis of tumors with and without mutations identified 275 significant cancer–gene pairs associated with altered TE expression, many of which are transcription factors such as TP53, NSD1 and ARID1A. The changes in TE expression were also inversely correlated with DNA methylation changes in many cases. Unexpectedly, we observed that immune pathway activity is down-regulated when TE expression is induced, and up-regulated when TE is repressed. Functional validation in isogenic ARID1A- and CTNNB1-perturbed models recapitulated the changes in TE activity and immune responses observed in TCGA datasets. Together, these findings reveal mutation-driven TE activity reprogramming as a widespread feature and a potential source for immune modulation in human cancers.
  • 🔗 查看原文

💡 该来源还有 104 条内容,详见 文末

🧪 博客更新 (2条)

详细内容(全部2条)

1. 非侵入性胶带条RNA测序追踪斑秃的疾病活动

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing
  • 📝 描述:RNA sequencing from non-invasive tape strips reveals immune activity and treatment response patterns in alopecia areata, supporting improved disease monitoring and patient stratification…
  • 🔗 查看原文

2. 你的DNA一直在移动——这或许可以解释癌症的成因。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer
  • 📝 描述:Scientists have uncovered a surprising secret about our DNA: it’s not a static blueprint, but a constantly shifting, folding structure that helps control how genes turn on and off. Researchers at the Salk Institute found that different parts of the genome loop and unloop at different speeds, with more active regions constantly reshaping themselves to support gene activity.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
cancer20
immune16
RNA-seq15
sequencing8
methylation8
transcriptome8
aging7
carcinoma7
spatial5
ATAC-seq5
epigenetic5
T cell5
scRNA4
genome4
pathway4
metabolic4
single-cell3
transcriptomics3
Neuronal3
inflammation3

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🧬 数据前沿 其他内容 (104条)

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