科研日报 2026-03-04

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📅 Daily Report - 2026-03-04

今日筛选出 55 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SRC家族激酶HCK在乳腺癌进展中的双重作用,同时激活肿瘤相关巨噬细胞介导的侵袭并抑制T细胞活性。另一项研究通过单细胞多模态分析,发现了驱动肿瘤细胞内在状态和环境适应性的基因调控原则。

主要方向

  • 肿瘤免疫与微环境调控:HCK在乳腺癌中的作用,RANK信号抑制在乳腺癌免疫治疗中的潜力,以及T细胞受体在Lynch综合征中的免疫学意义。
  • 癌症发生与转移机制:microRNA-21在肝细胞癌中的作用,AF9/KLF2通路与乳腺癌转移的联系,以及c-Rel驱动的胰腺癌转移机制。
  • 表观遗传与基因调控:组蛋白乳酰化在乳腺癌转移和视网膜基因表达中的作用,以及B细胞发育和急性淋巴细胞白血病中的三维染色质重塑。

技术亮点

  • 单细胞多模态技术和空间转录组学被用于解析复杂肿瘤样本的异质性和动态变化。
  • CUT&Tag和Hi-C等高通量测序技术应用于表观遗传调控和三维基因组结构研究。

🧪 博客更新

今日焦点: Ultima Genomics发布UG200系列测序仪及Solaris 2.0工作流程,显著提升RNA测序和全基因组测序通量;科学家揭示抗衰老化合物多胺可能促进癌症生长的机制。

主要方向

  • 高通量RNA测序与全基因组测序
  • 抗衰老化合物多胺与癌症发生机制研究

技术亮点

  • Ultima Genomics UG200系列:新型高通量测序平台
  • Solaris 2.0:优化RNA测序和全基因组测序工作流程

📚 分类浏览

🧬 数据前沿 (53条)

详细内容(前10条)

1.GSE272190 髓系SRC家族激酶HCK通过激活肿瘤相关巨噬细胞介导的侵袭和抑制细胞毒性T细胞活性来调控乳腺癌生长

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、cancer、T cell、macrophage、kinase
  • 📝 描述:Contributors : Michael W Murrey ; Ashleigh R Poh ; James H Steer ; Catherine Rinaldi ; Kellie A Mouchemore ; Amy R Dwyer ; Elena Denisenko ; Irina Kuznetsova ; Yen Yeow ; Matthew E Jones ; Khaing P Hmon ; Dáithí Ó Muirí ; Ya-Yu Liu ; Weitao Lin ; Alistair R Forrest ; Lesley G Ellies ; David A Joyce ; Matthias Ernst ; Fiona J PixleySeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusThe normal developmental and homeostatic roles of tissue resident macrophages are subverted in tumor-associated macrophages to promote tumor progression. Pro-tumoral macrophage activities include immune suppression and promotion of invasion and metastasis. We used the Py8119 mouse mammary tumor model to investigate the role of Hck activity in tumor growth through therapeutic inhibition and genetic modification. Single cell RNA sequencing and immunohistochemistry approaches were used to investigate changes to the immune compartment.Loss of HCK activity reduced the growth of Py8119 mammary tumors by 70-80% while excessive HCK activity increased growth four-fold. Consistent with a role for HCK in macrophage invasiveness, plasma membrane-associated Src family kinase activity at the tumor margins was lost in the absence of HCK. Regarding immune evasion, HCK-deficient tumors contained increased CD8+ T cell numbers and, while CD8+ T cell depletion reduced survival in all mouse cohorts, CD8+ T cell-depleted HCK-deficient mice survived much longer than CD8+ T cell-replete control mice. Characterisation of the tumour microenvironment by single cell sequencing showed 5 major subtypes of TAMs (immunoregulatory (Folr2high ), inflammatory (MHC-IIhigh ), interferon-primed, angiogenic and tissue resident), which together made up 40% of cells in the tumour. While Hck activity did not affect the recruitment of TAMs or their subtype composition, pathway analysis showed that its loss decreased TAM motility and increased their interferon signalling and reduced EMT pathways in the Py8119 tumor cells.This study provides evidence that HCK activity in TAMs enhances tumour growth via promotion of invasive behaviour as well as suppression of anti-tumor immunity. These findings highlight HCK as a promising therapeutic target to limit tumor progression.
  • 🔗 查看原文

2.GSE289646 T细胞受体基因组分析为林奇综合征携带者的癌症免疫学提供了新的见解

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、immunology、T cell、regex:immuno(logy|therapy|suppression)
  • 📝 描述:Series Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensLynch Syndrome (LS) provides the perfect context to understand DNA mismatch repair deficient (MMRd) carcinogenesis. LS carriers develop MMRd tumors with high neoantigen loads, which are shared by different LS tumors and recognized by T-cell receptors (TCRs) to trigger adaptive immunity. However, the TCR landscape in LS remains unexplored. Therefore, we performed TCR-sequencing in 277 blood samples from 102 LS cancer survivors, 130 LS previvors, and 45 controls, as well as three LS colorectal cancers, and 11 pre-cancers. For the first time, we found that up to 41% of the most expanded TCRβs from colorectal cancers and pre-cancers are detectable in the blood of several LS carriers, whereas these TCRs have minimal or no expansion in the blood of controls. Additionally, we developed a classification model that distinguishes LS carriers from controls with excellent performance using a set of 1,114 TCRβs that associates with all LS carriers, regardless of MMRd cancer history, and a set of 2231TCRβs that associates with LS previvors who have never developed cancer. This study is the first to describe circulating TCRβs that recognize neoantigens derived from colorectal cancers and pre-cancers in LS carriers, moving the field towards the identification of a blood based TCRβ cancer biomarker.
  • 🔗 查看原文

3.GSE320273 microRNA-21 促进脂质代谢紊乱和肝细胞癌 [bulk RNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、metabolism、RNA-seq
  • 📝 描述:Contributors : Chad VanSant-Webb ; Jessye C Castro ; Audrey Y Su ; Kiandra Hawkins ; Aavrati Saxena ; Jillian Wright ; Richard Smith ; Marco Fragoso- García ; Yian A Chen ; Carrie Barton ; Chris Stubben ; Ryan M O’Connell ; Gregory S Ducker ; Kimberley J EvasonSeries Type : Expression profiling by high throughput sequencingOrganism : Danio rerioThe prevalence of hepatocellular carcinoma (HCC) is rising in parallel with increasing obesity and metabolic dysfunction-associated steatohepatitis (MASH). MicroRNAs are key post-transcriptional regulators of gene expression and are attractive targets for HCC therapy. Here we sought to identify and characterize dysregulated microRNAs in MASH-driven HCC (MASH-HCC). We profiled microRNA expression in liver tissue from patients with MASH or MASH-HCC and in zebrafish HCC driven by activated β-catenin (ABC), one of the most commonly mutated oncogenes in MASH-HCC. We found overlap between dysregulated human and zebrafish miRNAs, including miR-21, which was increasingly upregulated from normal liver to MASH to MASH-HCC. We generated transgenic zebrafish that overexpress or sponge miR-21 in hepatocytes. We found that miR-21 overexpression caused larval liver overgrowth and increased HCC, while miR-21 sponge suppressed β-catenin-driven larval liver overgrowth. By performing histologic and lipidomic analysis, we found that overexpression of miR-21, like ABC, suppressed lipid accumulation in response to a high cholesterol diet and increased accumulation of acylcarnitines. Thus miR-21, which is similarly upregulated in human and zebrafish HCC, promotes lipid metabolic changes that may help drive hepatocarcinogenesis.
  • 🔗 查看原文

4.GSE318490 对来自 6 例晚期 HGSOC 患者的肿瘤样本进行单细胞 RNA 测序,涵盖治疗阶段(新辅助化疗前、新辅助化疗后和铂敏感复发)。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:tumor、RNA-seq、single-cell
  • 📝 描述:Series Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensHigh-grade serous ovarian cancer (HGSOC) is characterized by pronounced cellular heterogeneity and dynamic changes during treatment and recurrence. In this study, we collected 10 tumor samples from six patients with advanced-stage HGSOC and performed single-cell RNA sequencing (scRNA-seq) to profile the tumor ecosystem across different treatment stages, including pre-neoadjuvant chemotherapy (pre-NACT), post-neoadjuvant chemotherapy (post-NACT), and platinum-sensitive recurrence. Single-cell libraries were prepared using the 10x Genomics platform followed by high-throughput sequencing. This dataset provides a resource for investigating transcriptional heterogeneity and cellular composition changes associated with treatment and recurrence in advanced HGSOC.
  • 🔗 查看原文

5.GSE291225 AF9/KLF2 基因调控回路将组蛋白乳酸化与乳腺癌转移联系起来 [RNA-seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、RNA-seq、histone
  • 📝 描述:Contributors : Huida Ma ; Ming Yuan ; Chenxuan Yang ; Yuchen Yuan ; Xin Wang ; Zhonghui Tang ; Haitao LiSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensHistone lysine L-lactylation (hereafter referred to as histone Kla) is a novel epigenetic mark induced by glycolytic metabolism, serving as a link between metabolic reprogramming and epigenetic regulation. In this study, we uncover an epigenetic-genetic transcriptional regulatory circuit involving AF9 and KLF2 that drives luminal breast cancer progression. AF9, identified as a reader of histone H3 lysine 9 lactylation (H3K9la), promotes KLF2 expression, while KLF2, functioning as a transcription factor for AF9, forms a positive feedback loop that amplifies lactylation-dependent effects. This circuit activates tumor-associated pathways, including TGFβ1, glucose and lactate transporters, and metabolic enzymes essential for glycolysis and serine biosynthesis, driving tumorigenesis and metastasis. Spatial and single-cell transcriptomics show AF9-positive tumor cells enriched in regions of active lactylation, correlated with immune evasion through interactions with M2 macrophages. Together, AF9, H3K9la, and KLF2 integrate metabolism, epigenetics, and signaling to promote tumor growth and metastasis, highlighting AF9’s central role as a histone lactylation reader and a potential therapeutic target in breast cancer.
  • 🔗 查看原文

6. GSE322536 外周血单核细胞来源的microRNA作为急性淋巴细胞白血病诊断/疾病相关生物标志物的差异表达和靶基因分析

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:leukemia、differential expression
  • 📝 描述:Contributors : Hadil Alahdal ; Ghaida Almuneef ; Fatemah Basingab ; Kawther A Zaher ; Alia M AldahlawiSeries Type : Expression profiling by arrayOrganism : Homo sapiens ; synthetic constructClinical specimens were collected from patients with Acute Lymphoblastic Leukemia (ALL) and from non-leukemic controls. Total RNA (including small RNA) was profiled using the Affymetrix GeneChip miRNA 4.0 array to identify differentially expressed miRNAs between ALL and controlsRaw CEL files were generated using standard Affymetrix GeneChip scanning and feature extraction (AGCC or equivalent). Expression values were obtained in R using RMA normalization, followed by probe filtering was applied. Differential expression was assessed with limma using an ALL vs CTRL contrast with Benjamini–Hochberg FDR correction.
  • 🔗 查看原文

7. GSE322503 LKB1 在肠神经系统发育过程中作为神经元-胶质细胞平衡的检查点发挥作用

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:nervous、Neuronal
  • 📝 描述:Contributors : Chantal Thibert ; Jordan AllardSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusHow the energy status of enteric progenitors controls neurogliogenesis and the subsequent formation of the complex enteric nervous system (ENS) remains poorly understood. We previously showed that the tumor suppressor kinase LKB1 is essential for postnatal ENS maintenance through amino acid homeostasis. Here, we investigated LKB1’s functions during embryonic ENS formation using a genetically engineered mouse model with conditional Lkb1 inactivation in neural crest progenitors during gut colonization. Using advanced 3D imaging techniques on cleared tissue including lightsheet microscopy and adaptive optics confocal microscopy, we found that Lkb1 loss impairs early neuronal differentiation followed by progressive glial degeneration, leading to hypoganglionosis and compromised digestive tissue integrity. Notably, Lkb1 inactivation induced a transient upregulation of the glial stress marker S100 at mid-gestation, suggestive of a reactive glial state preceding glial loss. Consistent with this response, Lkb1 loss elevated oxidative stress in the digestive tract and in neural crest progenitors and their glial derivatives, triggering DNA damage and p53 activation. Although p53 ablation rescued glial specification in vitro and glial maintenance in vivo, it only partially restored ENS architecture in vivo without rescuing enteric neuron numbers. Together, these findings establish LKB1 as a critical metabolic checkpoint governing neuronal-glial balance during ENS development and suggest that dysregulated LKB1 signaling may contribute to human enteric neurogliopathies.
  • 🔗 查看原文

8. GSE320272 microRNA-21 促进脂质代谢紊乱和肝细胞癌 [miRNA-Seq]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:carcinoma、metabolism
  • 📝 描述:Contributors : Chad VanSant-Webb ; Jessye C Castro ; Audrey Y Su ; Kiandra Hawkins ; Aavrati Saxena ; Jillian Wright ; Richard Smith ; Marco Fragoso- García ; Yian A Chen ; Carrie Barton ; Chris Stubben ; Ryan M O’Connell ; Gregory S Ducker ; Kimberley J EvasonSeries Type : Non-coding RNA profiling by high throughput sequencingOrganism : Danio rerioThe prevalence of hepatocellular carcinoma (HCC) is rising in parallel with increasing obesity and metabolic dysfunction-associated steatohepatitis (MASH). MicroRNAs are key post-transcriptional regulators of gene expression and are attractive targets for HCC therapy. Here we sought to identify and characterize dysregulated microRNAs in MASH-driven HCC (MASH-HCC). We profiled microRNA expression in liver tissue from patients with MASH or MASH-HCC and in zebrafish HCC driven by activated β-catenin (ABC), one of the most commonly mutated oncogenes in MASH-HCC. We found overlap between dysregulated human and zebrafish miRNAs, including miR-21, which was increasingly upregulated from normal liver to MASH to MASH-HCC. We generated transgenic zebrafish that overexpress or sponge miR-21 in hepatocytes. We found that miR-21 overexpression caused larval liver overgrowth and increased HCC, while miR-21 sponge suppressed β-catenin-driven larval liver overgrowth. By performing histologic and lipidomic analysis, we found that overexpression of miR-21, like ABC, suppressed lipid accumulation in response to a high cholesterol diet and increased accumulation of acylcarnitines. Thus miR-21, which is similarly upregulated in human and zebrafish HCC, promotes lipid metabolic changes that may help drive hepatocarcinogenesis.
  • 🔗 查看原文

9. GSE311521:泛癌细胞系的单细胞多模态分析揭示了细胞内在状态和环境特征背后的基因调控原理

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、single-cell
  • 📝 描述:Contributors : Zihan Xu ; Aileen Ugurbil ; Joshua Kwan ; Chloe Schaefer ; Abdulraouf Abdulraouf ; Ziyu Lu ; Wei Zhou ; Junyue CaoSeries Type : Expression profiling by high throughput sequencing ; Genome binding/occupancy profiling by high throughput sequencingOrganism : Homo sapiensCancer arises from somatic mutations whose effects are executed through dysregulated gene-regulatory programs that reshape chromatin, transcription, and malignant phenotypes. To uncover gene regulatory principles underlying heterogeneous cancer cell states and their linked environmental features, here we present a pan-cancer single-cell, multi-omic atlas of human cancer cell lines, including a compendium of 240,957 transcriptomes and 223,347 chromatin-accessibility profiles from primary cancers spanning 20 tumor types. We revealed extensive pan-cancer cell-state heterogeneity, core gene-regulatory networks, and consensus epithelial–mesenchymal transition (EMT) trajectories that transcend tissue of origin and are governed by conserved epigenomic and transcriptomic features. In addition, our copy-number variation analysis implicated transcription factor amplification, followed by hyperactive downstream regulation, as a major driver of malignant states. Further focused analysis of acral versus cutaneous melanoma cell lines uncovers a universal inflammation-suppressive program in acral melanoma versus an inflamed regulatory landscape in cutaneous melanoma, highlighting the JAK–STAT axis as a key discriminator. Finally, by integrating single-cell and bulk datasets across models and patient cohorts, we revealed tumor–microenvironment co-adaptation in vivo, and this was associated with immunotherapy responsiveness.
  • 🔗 查看原文

10. GSE291664 乳酸和组蛋白 H3K18 乳酸化与视网膜基因表达的代谢控制相关 [timecourse_CUT&Tag]

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:metabolic、histone
  • 📝 描述:Contributors : Mohita Gaur ; Matthew J Brooks ; Xulong Liang ; Milton English ; Laura Campello ; Claire Marchal ; Anand SwaroopSeries Type : Genome binding/occupancy profiling by high throughput sequencingOrganism : Mus musculusHigh aerobic glycolysis in retinal photoreceptors, as in cancer cells, is implicated in mitigating energy and metabolic demands. Lactate, a key product of glycolysis, is implicated in epigenetic regulation through histone lactylation in cancer. Here, we demonstrate that increased ATP production during retinal development is achieved primarily through augmented glycolysis. Histone lactylation, especially H3K18La, parallels enhanced glycolysis and its product, lactate, in developing retina and in retinal explants. Multi-omics analyses, combined with confocal imaging, reveal the localization of H3K18La near H3K27Ac in euchromatin at promoters of active retinal, especially photoreceptor, genes. H3K18La and gene expression also correspond to glucose metabolism in retinal explants. Evaluation of accessible chromatin at H3K18La promoters uncovers an enrichment of GC-rich motifs for transcription factors of SP, KMT and KLF families, among others, indicating specificity of H3K18La-mediated gene regulation. Our results highlight glycolysis/lactate/H3K18La as a regulatory axis in fine-tuning gene expression in developing and mature retina.
  • 🔗 查看原文

💡 该来源还有 43 条内容,详见 文末

🧪 博客更新 (2条)

详细内容(全部2条)

1. Ultima Genomics推出UG200系列和Solaris 2.0工作流程,实现可扩展测序

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:sequencing、genomics
  • 📝 描述:Ultima Genomics launches the UG200 Series and Solaris 2.0 workflows, expanding high-throughput RNA sequencing and whole genome sequencing with higher output…
  • 🔗 查看原文

2. 科学家揭示了一种流行的抗衰老化合物为何也可能促进癌症发生。

  • ✍️ 作者:未知作者
  • 🏷️ 关键词:cancer、aging
  • 📝 描述:Polyamines—natural molecules found in every living cell—have become stars in the longevity world for their ability to boost cellular cleanup and support healthy aging. But there’s a dark twist: high levels of these same molecules are consistently seen in cancer, where tumors grow aggressively.
  • 🔗 查看原文

📊 关键词统计

关键词出现次数
RNA-seq11
leukemia7
cancer7
histone6
metabolism4
single-cell4
transcriptome4
tumor4
inflammation3
metabolic3
macrophage3
ChIP-seq3
sequencing2
carcinoma2
methylation2
spatial2
T cell2
ATAC-seq2
cardiac2
genomics1

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🧬 数据前沿 其他内容 (43条)

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