科研日报 2026-06-22
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📅 Daily Report - 2026-06-22
今日筛选出 7 条内容,来自 2 个来源
🤖 今日AI智能总结
🧬 数据前沿
今日焦点: Lin28b在胰腺癌(PDAC)肿瘤微环境中调控免疫应答,并鉴定出其在PDAC癌相关成纤维细胞(CAFs)中的RNA靶点,为PDAC免疫治疗提供新思路。
主要方向:
- 肿瘤微环境免疫调控:研究PDAC中Lin28b介导的免疫细胞功能改变。
- 肿瘤细胞转录组学:揭示DNAJC2敲低对肾透明细胞癌细胞的转录组影响。
- 信号通路与代谢调控:阐明Nodal/Smad2信号通路如何通过抑制Pparg介导的脂质代谢来维持发育暂停。
- 巨噬细胞表型与功能:表征人M2样(TGFβ/IL10)与M0单核细胞来源巨噬细胞的转录组特征。
- 肿瘤细胞谱系状态与转移:研究IRE1活性如何调控肿瘤及微环境细胞谱系状态,并区分局灶性与转移性前列腺癌。
技术亮点:
- 单细胞RNA测序(scRNA-seq)揭示肿瘤微环境中的细胞异质性。
- RNA免疫沉淀测序(RIP-seq)鉴定关键转录调控因子(Lin28b)的RNA靶点。
🧪 博客更新
今日焦点: 首次发现DNA修复基因EXO1过量表达时可转化为致癌因素,揭示新的癌症治疗靶点。
主要方向:
- 探索EXO1过量表达与特定癌症发生发展的关联。
- 开发靶向抑制过量EXO1活性的新型抗癌疗法。
技术亮点:
- 利用基因表达调控机制,揭示DNA修复基因的双重作用。
- 识别EXO1作为潜在的癌症预警和治疗标志物。
📚 分类浏览
🧬 数据前沿 (6条)
详细内容(全部6条)
1. ⭐ GSE306321 单细胞 RNA 测序揭示了 PDAC 肿瘤微环境中 Lin28b 依赖的免疫调节
- ✍️ 作者:未知作者
- 🏷️ 关键词:tumor、immune、tumor microenvironment、sequencing、single-cell
- 📝 描述:Series Type : Expression profiling by high throughput sequencingOrganism : Mus musculusCancer-associated fibroblasts (CAFs) play a crucial role in shaping the pancreatic ductal adenocarcinoma (PDAC) tumor microenvironment (TME). This study investigates the impact of an RNA-binding protein Lin28b on the immune landscape of PDAC. Single-cell RNA sequencing (scRNA-seq) was performed on orthotopic pancreatic tumors from wild-type (WT) and fibroblast-specific Lin28b knockout (Fsp-Cre;Lin28bfl/fl) mice. Our analysis revealed that Lin28b expression in CAFs promotes an immunosuppressive TME characterized by reduced immune cell infiltration and dampened type I interferon (IFN) signaling. Conversely, Lin28b deletion in CAFs resulted in increased infiltration of immune cells, particularly CD8+ T cells and enhanced cytotoxic T cell activity. These findings identify Lin28b as a CAF-intrinsic molecular brake on anti-tumor immunity and provide a rationale for targeting the Lin28 to overcome PDAC resistance to immunotherapy.
- 🔗 查看原文
2. ⭐ GSE335539 DNAJC2敲低透明细胞肾细胞癌细胞的高通量转录组测序(shDNAJC2 vs shCtrl)
- ✍️ 作者:未知作者
- 🏷️ 关键词:carcinoma、sequencing、transcriptome
- 📝 描述:Contributor : Yunkai YangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensThis project was designed to characterize transcriptomic changes caused by DNAJC2 knockdown in clear cell renal cell carcinoma (ccRCC) cells using high-throughput RNA sequencing. Cells transduced with control shRNA and cells with DNAJC2 knockdown were subjected to next-generation transcriptome sequencing to identify differentially expressed genes and pathways regulated by DNAJC2. This dataset was used to investigate the role of DNAJC2 in ccRCC cell metabolism and ferroptosis-related regulation
- 🔗 查看原文
3. GSE306320 RNA免疫沉淀测序鉴定出PDAC癌相关成纤维细胞中Lin28b的RNA靶标
- ✍️ 作者:未知作者
- 🏷️ 关键词:cancer、sequencing
- 📝 描述:Series Type : OtherOrganism : Mus musculusThis study uses RNA immunoprecipitation followed by sequencing (RIP-seq) to identify RNA targets of Lin28b in PDAC cancer-associated fibroblasts (CAFs). CAFs expressing either Flag-wild-type Lin28b (Lin28b-WT) or an RNA-binding deficient mutant (Flag-Lin28b-MU) were subjected to RIP-seq. Our analysis revealed that STING mRNA, a key component of the innate immune cGAS-STING pathway, is a direct target of Lin28b. This interaction leads to decreased STING mRNA stability and reduced STING protein levels, thereby suppressing type I interferon (IFN) production. These findings provide a mechanistic explanation for the immunosuppressive function of Lin28b in the PDAC tumor microenvironment.
- 🔗 查看原文
4. GSE303717 Nodal/Smad2信号通路通过抑制Pparg介导的脂质代谢来维持发育停滞
- ✍️ 作者:未知作者
- 🏷️ 关键词:metabolism
- 📝 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
5. GSE335752 人类 M2 样(TGFβ/IL10)与 M0 单核细胞衍生巨噬细胞的特征分析
- ✍️ 作者:未知作者
- 🏷️ 关键词:monocyte
- 📝 描述:Contributors : Jennifer Yinuo Cao ; Giovanni C ForcinaSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensPeripheral human monocytes from different human donors were differentiated into M2-like (TGFbeta/IL10) or M0 and analyzed by RNAseq.
- 🔗 查看原文
6. GSE297633 IRE1活性调控肿瘤和微环境细胞谱系状态,同时对局限性和转移性前列腺癌进行分层
- ✍️ 作者:未知作者
- 🏷️ 关键词:cancer
- 📝 描述:Contributors : Dimitrios Doultsinos ; Ian Mills ; Ingrid Tomljanovic ; Eleftherios Pilalis ; Aristotelis ChatziioannouSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensProstate cancer (PCa) is an androgen receptor (AR) driven, high-incidence disease significantly contributing to cancer mortality. PCa is in need of better risk stratification at diagnosis and treatment outcomes in patients at high risk of metastasis. The unfolded protein response (UPR) is an AR-dependent process. However, the impact of the UPR transducer IRE1 on AR-dependent biology and treatment resistance has not been defined. We use diverse pre-clinical models of stress response to describe IRE1 activity impact on multiple disease stages and demonstrate its involvement with poor prognosis (RB1 loss), and cell lineage determination (club phenotypes). Integrating clinical transcriptomic datasets, we chart IRE1 activity throughout PCa evolution by developing a PCa-specific, IRE1 activity gene set (IRE1_18) reflecting both tumoral and micro-environmental niches. IRE1_18 can determine tumoral identity, inform androgen deprivation treatment suitability, prognosticate localised and metastatic disease independently from AR activity, and guide IRE1 modulation as a novel combination therapeutic.
- 🔗 查看原文
🧪 博客更新 (1条)
详细内容(全部1条)
1. 这种DNA修复基因失控,暴露了癌症的弱点。
- ✍️ 作者:未知作者
- 🏷️ 关键词:cancer
- 📝 描述:Scientists have discovered that a gene normally considered a DNA-protecting “good guy” can become dangerous when cells make too much of it. The gene, EXO1, acts like molecular scissors that help repair DNA, but when overproduced it starts cutting DNA it shouldn’t, creating damage linked to cancer.
- 🔗 查看原文
📊 关键词统计
| 关键词 | 出现次数 |
|---|---|
| cancer | 3 |
| sequencing | 3 |
| metabolism | 1 |
| monocyte | 1 |
| carcinoma | 1 |
| transcriptome | 1 |
| tumor | 1 |
| immune | 1 |
| tumor microenvironment | 1 |
| single-cell | 1 |
📅 报告生成时间:2026-06-21 22:39
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