详细内容（前10条）

1. ⭐ GSE302682 Sleeping Beauty 突变体鉴定出 BACH2 和其他调节因子在肿瘤相关慢性抗原刺激下促进 CD8+ T 细胞的持久性和效应功能 - RNA测序

• ✍️ 作者：未知作者
• 🏷️ 关键词：tumor、T cell、antigen、RNAseq
• 📝 描述：Contributors : Chang-Jung Lee ; Tyler A Jubenville ; Nuri A Temiz ; David A LargaespadaSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculus● Background: Genes that enhance T cell function could represent promising targets for improving engineered T cell therapies for cancer. While extensive CRISPR knockout screens have identified key genes that enhance T cell persistence, employing Sleeping Beauty (SB) insertional mutagenesis, which induces both gain- (GOF) and loss-of-function (LOF) mutations via the generation of fusion transcripts with endogenous genes, may uncover additional critical factors that previous approaches have overlooked. ● Methods: We developed transgenic mouse models carrying Doxycycline (Dox)-inducible SB engineered system (DiSBey) in primary T cells. Using DiSBey, we conducted screens to identify genes that enhance T cell persistence under chronic antigen exposure. Specifically, CD8⁺ T cells from Dox-fed DiSBey mice were subjected to repeated anti-CD3 stimulation over 18 days to mimic chronic antigenic stimulation. We then identified SB transposon genomic insertion sites and corresponding fusion transcripts from the persistent DiSBey CD8⁺ T cells using enhanced-specificity tagmentation sequencing (esTag-seq) and RNA-seq, respectively. ● Results: Under chronic stimulation, SB-mutagenized CD8⁺ T cells exhibited improved persistence and reduced terminal exhaustion phenotype. Across six independent screens, we identified 38 genes that were recurrently targeted by the SB transposon T2/Onc2 and differentially expressed under chronic anti-CD3 stimulation stress. Among these, T2/Onc2 insertions into Bach2 and Elmo1 were repeatedly found at the genomic level and were associated with altered nascent transcript expression. Bach2, previously recognized as a key regulator of T cell memory formation and resistance to chronic viral infection but less characterized in engineered T cells for cancer therapy, was found to enhance in vivo persistence in the B16-Ova tumor model. We further demonstrated that ectopic Bach2 expression levels influence engineered T cell differentiation lineage. A Bach2low signature allowed differentiation into both KLRG1⁺ and CD62L⁺ phenotypes, whereas Bach2high restricted differentiation predominantly to the CD62L⁺ subset. Finally, in human CART19-28ζ cells, BACH2 overexpression enhanced cytotoxicity and improved tumor control following chronic cancer stimulation in vivo. ● Conclusions: Contro…
• 🔗 查看原文

2. ⭐ GSE238087：经工程化癌细胞膜修饰的纳米药物靶向CDKs，激活PD-L1抗体免疫疗法，对抗免疫沙漠结肠癌肝转移

• ✍️ 作者：未知作者
• 🏷️ 关键词：cancer、immune、antibody、regex:immuno(logy|therapy|suppression)
• 📝 描述：Contributors : Dongbing Ding ; Rongpu Liang ; Tan Li ; Tianyun LanSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusImmunotherapy based on the PD-1/PD-L1 axis blockade has no benefit for patients diagnosed with colon cancer liver metastasis (CCLM) for the MSS/pMMR subtype, which is known as an immune-desert cancer featuring poor immunogenicity and insufficient CD8+ T cell infiltration in the tumor microenvironment. Thus, turning the tumor microenvironment immunologically hot is critical for activating a potent immunotherapy through immune checkpoint blockade (ICB) in this unique subtype accounting for 85% cases of total colon cancer. Here, a multifunctional nanodrug (NP-D@MP) carrying a cyclin-dependent kinase (CDK)1/2/5/9 inhibitor and PD-L1 antibody to boost the ICB-based immunotherapy against MSS/pMMR CCLM via reversing the immunosuppressive tumor microenvironment. To enhance the MSS/pMMR CCLM-targeting efficacy, we modified the nanodrug with PD-L1 knockout cell membrane of this colon cancer subtype. The nanodrug boosted the immunogenicity of tumor microenvironment, thus improving response rate of PD-L1 antibody treatment. First, CDK inhibitor (CDKi) delivered by nanodrug down-regulates phosphorylated retinoblastoma and phosphorylated RNA polymerase II and meanwhile arrests the G2/M cell cycle in CCLM to promote immunogenic signal release, stimulate dendritic cell maturation, and enhance CD8+ T cell infiltration. Moreover, CDKi suppresses the secretion of immunosuppressive cytokines in tumor-associated myeloid cells (TAMCs) sensitizing ICB therapy in CCLM of murine CT26 cell. Notably, the great efficacy to activate immune responses is demonstrated in the patient-derived xenograft (PDX) model and the patient-derived organoid (PDO) model as well, revealing a clinical application potential. Overall, our study represents a promising therapeutic approach for targeting liver metastasis, remolding the TIME, and enhancing the response of MSS/pMMR CCLM to boost ICB immunotherapy.
• 🔗 查看原文

3. ⭐ GSE253036 肿瘤细胞 JAGGED-1 促进淋巴结转移并预测淋巴结阳性乳腺癌患者的复发

• ✍️ 作者：未知作者
• 🏷️ 关键词：tumor、cancer、lymph、regex:lymph(o|atic)?
• 📝 描述：Series Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensThis SuperSeries is composed of the SubSeries listed below.
• 🔗 查看原文

4. ⭐ GSE339455 整合的批量和空间转录组学分析鉴定出经活检证实的高血压肾病进展相关的分子特征 [空间转录组学]

• ✍️ 作者：未知作者
• 🏷️ 关键词：spatial、spatial transcriptomics、transcriptomics
• 📝 描述：Contributors : Tony J Chen ; Jessica Furriol ; Lea Z Landolt ; Henrik Foshaug ; Stein Ivar Hallan ; Marius A Övrehus ; Sabine Leh ; Hrafn Weishaupt ; Andreas Scherer ; Liv M Jacobsen ; Leila Barmoudeh ; Yushu Li ; Hans Arnfinn Karlsen ; Thomas Knoop ; Hans-Peter Marti ; Öystein EikremSeries Type : OtherOrganism : Homo sapiensHypertensive nephropathy (HN) is a leading cause of chronic kidney disease (CKD), but molecular mechanisms underlying disease progression remain poorly understood. We aimed to identify transcriptomic signatures associated with disease progression and to localize these signatures within renal architectures.Patients with biopsy-proven HN were selected from the Norwegian Kidney Biopsy Registry and stratified after ≥5 years of follow-up into early stable (ES), early progressor (EP), late stable (LS) and late progressor (LP) based on baseline kidney function and annual eGFR decline. Bulk transcriptomic profiling was performed in a discovery cohort and validated in an independent cohort using nCounter profiling. Spatial transcriptomics was applied to map progression-associated signatures to nephron compartments.Bulk RNA sequencing identified 415 differentially expressed genes (DEGs) between ES and EP, and 692 between LS and LP samples. ES was enriched in circadian rhythm pathways, with reduced NR1D1 and NR1D2 expression in EP. LP was associated with metabolic reprogramming including glutathione, retinol and amino acid metabolism. Random forest modelling identified NR1D1 gene expression as a key classifier, validated in an independent cohort. Spatial transcriptomics revealed nephron segment-specific expression patterns, including a proximal tubule cluster enriched in ferroptosis in LP. Comparative nephron-segment analyses across groups revealed progression-associated biomarkers, including CHGA, CCN2 and SFRP2 in glomeruli, and APOE in proximal tubules.HN progression appears to involve stage-specific and compartmentalized molecular programs. Integration of bulk and spatial transcriptomics identifies candidate biomarkers and pathways, potentially supporting innovative prognostic stratification and therapeutic strategies.
• 🔗 查看原文

5. ⭐ GSE302683 Sleeping Beauty 诱变鉴定出 BACH2 和其他调节因子在肿瘤相关慢性抗原刺激下促进 CD8+ T 细胞的持久性和效应功能 - esTAG

• ✍️ 作者：未知作者
• 🏷️ 关键词：tumor、T cell、antigen
• 📝 描述：Contributors : Chang-Jung Lee ; Tyler A Jubenville ; Nuri A Temiz ; David A LargaespadaSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculus● Background: Genes that enhance T cell function could represent promising targets for improving engineered T cell therapies for cancer. While extensive CRISPR knockout screens have identified key genes that enhance T cell persistence, employing Sleeping Beauty (SB) insertional mutagenesis, which induces both gain- (GOF) and loss-of-function (LOF) mutations via the generation of fusion transcripts with endogenous genes, may uncover additional critical factors that previous approaches have overlooked. ● Methods: We developed transgenic mouse models carrying Doxycycline (Dox)-inducible SB engineered system (DiSBey) in primary T cells. Using DiSBey, we conducted screens to identify genes that enhance T cell persistence under chronic antigen exposure. Specifically, CD8⁺ T cells from Dox-fed DiSBey mice were subjected to repeated anti-CD3 stimulation over 18 days to mimic chronic antigenic stimulation. We then identified SB transposon genomic insertion sites and corresponding fusion transcripts from the persistent DiSBey CD8⁺ T cells using enhanced-specificity tagmentation sequencing (esTag-seq) and RNA-seq, respectively. ● Results: Under chronic stimulation, SB-mutagenized CD8⁺ T cells exhibited improved persistence and reduced terminal exhaustion phenotype. Across six independent screens, we identified 38 genes that were recurrently targeted by the SB transposon T2/Onc2 and differentially expressed under chronic anti-CD3 stimulation stress. Among these, T2/Onc2 insertions into Bach2 and Elmo1 were repeatedly found at the genomic level and were associated with altered nascent transcript expression. Bach2, previously recognized as a key regulator of T cell memory formation and resistance to chronic viral infection but less characterized in engineered T cells for cancer therapy, was found to enhance in vivo persistence in the B16-Ova tumor model. We further demonstrated that ectopic Bach2 expression levels influence engineered T cell differentiation lineage. A Bach2low signature allowed differentiation into both KLRG1⁺ and CD62L⁺ phenotypes, whereas Bach2high restricted differentiation predominantly to the CD62L⁺ subset. Finally, in human CART19-28ζ cells, BACH2 overexpression enhanced cytotoxicity and improved tumor control following chronic cancer stimulation in vivo. ● Conclusions: Contro…
• 🔗 查看原文

6. ⭐ GSE294300 原发性结直肠癌和邻近正常组织细胞的单细胞基因表达谱[scRNA-Seq]

• ✍️ 作者：未知作者
• 🏷️ 关键词：cancer、single-cell、scRNA
• 📝 描述：Contributors : Qian He ; Zhigang WangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensColorectal cancer (CRC) is the third malignancy worldwide. RAS mutant CRC has a worse prognosis and resistant to immune therapies. Current research on the tumor microenvironment of RAS-mutant CRC remains limited, with few studies systematically characterizing its cellular composition or functional dynamics. A total of 36 clinical surgical samples (tumors and paired adjacent normal tissues) from 18 patients with primary CRC were collected for single-cell transcriptome sequencing.At the same time, each patient underwent genome sequencing, and 18 patients were divided into RAS gene mutation group (n=10) and wild-type group (n=8). Therefore, revealing the functional cell types and mechanism of immune evasion in RAS mutant CRC by scRNA-seq may contribute to discover new therapeutic targets.
• 🔗 查看原文

7. ⭐ GSE278621 代谢功能障碍相关脂肪肝患者肝组织的空间转录组谱

• ✍️ 作者：未知作者
• 🏷️ 关键词：metabolic、spatial、transcriptome
• 📝 描述：Contributors : Hiroaki Kanzaki ; Soumith Paritala ; Naoto Kubota ; Naoto Fujiwara ; Yujin HoshidaSeries Type : OtherOrganism : Homo sapiensMetabolic dysfunction-associated steatotic liver disease (MASLD) causes progressive liver fibrosis and hepatocellular carcinoma (HCC). By using archived fixed surgical liver tissue affected with MASLD, we performed Visium Spatial Transcriptome profiling to study spatially-resolved moelcular dysregulatons associated with the clinical phenotypes of the disease and mechanisms of liver fibrogenesis and carcinogenesis.
• 🔗 查看原文

8. ⭐ GSE332837 单细胞测序揭示慢性 HIV 感染期间 NK 细胞功能失调，并鉴定出与 HIV 病毒库衰减相关的过渡性 NK 细胞细胞毒性。

• ✍️ 作者：未知作者
• 🏷️ 关键词：NK cell、sequencing、single-cell
• 📝 描述：Contributors : Wen-Jing Cao ; Bao-Peng Yang ; Jin-Wen SongSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensWe performed scRNA-seq on NK cells from HCs and PLWH before/after ART. We identified ten subsets, including IFN-responding (c7) and proliferating (c8, c9) cells that expand in untreated PLWH. Cytotoxicity of the transitional NK before ART correlated with subsequent HIV-DNA decline. Our findings reveal NK cell heterogeneity during HIV infection, informing NK-based immunotherapies.
• 🔗 查看原文

9. ⭐ GSE303393 人乳寡糖 2’-岩藻糖基乳糖和乳糖-N-新-四糖通过调节肠道菌群减轻小鼠早期断奶引起的肠道屏障功能障碍

• ✍️ 作者：未知作者
• 🏷️ 关键词：gut、regex:gut(-?microbiome)?、regex:intestin(e|al)
• 📝 描述：Contributor : Chen RuSeries Type : Expression profiling by high throughput sequencingOrganism : Mus musculusEarly weaning is a common practice among young mothers and is associated with an increased risk of gastrointestinal disorders. Human milk oligosaccharides (HMOs) play a critical role in maintaining gut barrier integrity and have been increasingly applied in infant formulas. However, the mechanisms of HMOs in maintaining gut function remain unclear. This study aimed to assess the effects of 2’-fucosyllactose (2’-FL) and Lacto-N-neotetraose (LNnT) in a mouse model of early weaning.
• 🔗 查看原文

10. GSE339484 RNA-seq 分析 14 例配对的原发性和复发性胶质瘤病例

• ✍️ 作者：未知作者
• 🏷️ 关键词：glioma、RNA-seq
• 📝 描述：Contributors : Jian-Ying Chuang ; Pin-Yuan Chen ; Kwang-Yu Chang ; Wen-Bin YangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensGlioma recurrence remains a major clinical challenge and is associated with poor patient outcomes. To characterize transcriptomic alterations associated with tumor recurrence, we performed bulk RNA sequencing on paired primary and recurrent glioma tissue specimens from 14 patients. According to the 2021 World Health Organization (WHO) Classification of Central Nervous System Tumors, glioblastoma is defined as IDH-wildtype (IDH-wt), CNS WHO grade 4. Based on these criteria, 11 paired cases were classified as glioblastoma (IDH-wt, grade 4), while three paired cases with IDH-mutant, grade 3 gliomas were included as a comparison group. Differential gene expression analysis was performed between paired primary and recurrent tumors to identify recurrence-associated transcriptomic changes. Functional enrichment and pathway analyses were subsequently conducted to investigate the biological processes and signaling pathways associated with the identified differentially expressed genes (DEGs). This dataset provides a resource for exploring the molecular mechanisms underlying glioma recurrence and may facilitate the identification of potential therapeutic targets and biomarkers associated with disease progression.
• 🔗 查看原文

💡 该来源还有 59 条内容，详见 文末

详细内容（全部4条）

1. 新的癌症治疗策略有望在肿瘤产生耐药性之前将其阻止。

• ✍️ 作者：未知作者
• 🏷️ 关键词：cancer、resistance
• 📝 描述：Researchers are applying evolutionary theory to cancer by changing treatments before tumors have time to develop resistance. Mathematical models suggest that rapid, carefully timed switches between multiple therapies could improve cure rates.
• 🔗 查看原文

2. 新发现或将改变罕见脑肿瘤星形母细胞瘤的治疗方法。

• ✍️ 作者：未知作者
• 🏷️ 关键词：tumor
• 📝 描述：RNA sequencing helped identify three distinct molecular groups of astroblastoma, supporting more accurate diagnosis, risk assessment, and personalized treatment strategies for rare pediatric brain tumors…
• 🔗 查看原文

3. 实验室培育的微型大脑或许能够预测哪些阿尔茨海默病疗法有效。

• ✍️ 作者：未知作者
• 🏷️ 关键词：Alzheimer
• 📝 描述：Miniature brain models grown from patients’ cells revealed striking differences in how Alzheimer’s-related tissue responds to an antidepressant. The organoids and the particles they release could eventually guide more personalized treatments and provide new clues for diagnosing the disease.
• 🔗 查看原文

4. 年轻成年人绝不应忽视的结直肠癌预警信号

• ✍️ 作者：未知作者
• 🏷️ 关键词：cancer
• 📝 描述：Colorectal cancer is now the leading cause of cancer death among people under 50, and cases in younger adults continue to rise. Warning signs can include persistent bowel changes, recurring rectal bleeding, dark or narrow stools, unexplained weight loss, and fatigue. These symptoms often have harmless causes, but they should not be dismissed, especially when they are new or ongoing. Early detection can greatly improve treatment outcomes.
• 🔗 查看原文

• GSE339460 融合蛋白缺失的少突胶质细胞可减少 AppNL-G-F 小鼠的神经元损伤和阿尔茨海默病进展
• GSE339456 整合的批量和空间转录组分析鉴定出经活检证实的高血压肾病进展相关的分子特征 [RNA-seq]
• GSE330247 持续存在的TOP1裂解复合物驱动肺癌对EGFR靶向治疗的适应性耐药
• GSE328207 Arid3b 通过 Runx3 抑制微卫星稳定型结直肠癌中 CD8+ T 细胞的浸润和功能
• GSE327618 靶向小胶质细胞磷脂酰乙醇胺合成途径可促进阿尔茨海默病中GABARAP相关的吞噬作用和Aβ清除
• GSE327213 mRNA翻译增加可延缓肿瘤起始并暴露肺癌治疗弱点
• GSE325608 BAPN诱导的雄性和雌性小鼠主动脉夹层的转录组测序
• GSE325129 多亚基捕获复合物促进胰腺癌中内质网滞留的MHC-I的降解
• GSE324451 埃洛凡类神经保护作用靶向细胞转录组学和蛋白质组学，以维持脑损伤后的突触完整性
• GSE318254 TET1 非催化活性塑造染色质景观，指导雄性生殖细胞系中从头甲基化的建立 [RNAseq]
• GSE310056 miR-155 调控 AML 肿瘤特异性 mRNA 疫苗反应
• GSE306506 通过空间 RNA 测序和机器学习揭示儿童髓母细胞瘤的转录异质性并发现其特征
• GSE304729 多组学分析揭示 Nono-Kcnq2 对神经性疼痛中神经元兴奋性的调控 [scRNA-Seq]
• GSE304247 FTO介导的m6A去甲基化调节PGC-1α依赖的线粒体生物合成以减弱铝诱导的神经元衰老[RNA-Seq]
• GSE325262 靶向 ABL 激酶以克服 MAPKi 耐药期间黑色素瘤的免疫逃逸
• GSE328441 胶质瘤富集型 FFPE 立体定向活检队列中的甲基化谱分析和替代分类方法
• GSE339454 整合的批量和空间转录组分析鉴定出经活检证实的高血压肾病进展相关的分子特征 [NanoString]
• GSE337025 慢性 IL-1 暴露可减弱 IL-1 反应并改变基因表达调控，同时保持 BCa 细胞系的治疗敏感性 [ChIP-seq]
• GSE327920 对照组和砷组A型精原细胞的DNA甲基化谱[pro]
• GSE327919 对照组和砷组 A 型精原细胞的 DNA 甲基化谱 [A 型]
• GSE325540 BACH1 和 IL-1β 之间的正反馈回路促进 HPV 阴性头颈部鳞状细胞癌的进展 [CUT&Tag]
• GSE325366 BACH1 和 IL-1β 之间的正反馈回路促进 HPV 阴性头颈部鳞状细胞癌的进展
• GSE320600 TGF-β1 介导的 β-珠蛋白和 MYC 增强子的染色质重连导致红细胞生成缺陷 [RNA-seq]
• GSE320598 TGF-β1 介导的 β-珠蛋白和 MYC 增强子的染色质重连导致红细胞生成缺陷 [scRNA-seq]
• GSE319630 利用体内单细胞功能基因组学绘制出生后心脏发育图谱
• GSE319129 TET1 非催化活性塑造染色质景观，指导雄性生殖细胞系中从头甲基化的建立 [甲基化阵列]
• GSE318333 转铁蛋白受体-1的非经典功能通过激活HCK-STAT3-MMP9信号通路促进乳腺癌转移
• GSE318256 TET1非催化活性塑造染色质图谱，从而指导雄性生殖细胞系中从头甲基化的建立
• GSE318255 TET1 非催化活性塑造染色质景观，指导雄性生殖细胞系中从头甲基化的建立 [5hmCSeal]
• GSE318253 TET1 非催化活性塑造染色质景观，指导雄性生殖细胞系中从头甲基化的建立 [CUTandRUN]
• GSE317438 ESRG通过结合NPM1调节BMP4蛋白和TGF-β信号通路，从而维持人类多能干细胞的自我更新。
• GSE313062 增强的内吞作用、线粒体应激和 NK/NKT 细胞介导的免疫反应是 RHO P347L 突变体引起的严重视网膜色素变性的基础
• GSE311462 雌激素类内分泌干扰化合物增加雌激素受体阳性乳腺癌细胞的增殖和癌症干性
• GSE310724 CSDE1 功能丧失增强白细胞介素-6 mRNA 的稳定性并促进子宫内膜癌细胞的恶性转化。
• GSE310241 黏膜炎症和预存抗体决定了人类百日咳杆菌感染后的保护作用和疾病结局
• GSE308847 跨界根管生物膜上清液诱导牙髓干细胞发生双相炎症和代谢重编程
• GSE308258 一种新型MAP4K4活性药理抑制剂可保护代谢功能障碍相关性脂肪性肝炎的临床前模型
• GSE308072 体外药物敏感性试验预测晚期卵巢癌的治疗结果
• GSE304826 多组学分析揭示 Nono-Kcnq2 在神经性疼痛中调控神经元兴奋性
• GSE304248 FTO介导的m6A去甲基化调节PGC-1α依赖的线粒体生物合成以减弱铝诱导的神经元衰老[MeRIP-Seq]
• GSE304047 HuR 通过血小板浸润协调系统衰老。
• GSE293358 青光眼小鼠视网膜和视神经中免疫细胞群的转录组图谱
• GSE290989 利用体内单细胞功能基因组学 [snRNA-Seq] 绘制出生后心脏发育图谱
• GSE290986 利用体内单细胞功能基因组学 [PIP-Seq] 绘制出生后心脏发育图
• GSE243350 ATP依赖性柠檬酸裂解酶的缺失通过代谢重塑驱动左心室功能障碍
• GSE217032 灵长类动物 p53 转录反应的演变 [ATAC-seq]
• GSE339586 激活的成年肌肉干细胞中 BMP 和 Notch 信号通路之间存在广泛的串扰 [RNA-seq III]
• GSE338662 STAT3 SH2 结构域天冬氨酸 661 突变激活免疫基因程序
• GSE319904 锥虫感染小鼠滤泡细胞毒性 CD8+ T 细胞的 RNA 测序
• GSE277683 过早衰老会损害小鼠和人类镰状细胞病期间的造血干细胞功能（小鼠批量 RNA 测序）
• GSE277682 过早衰老会损害小鼠和人类镰状细胞病期间的造血干细胞功能（人类批量 RNA 测序）
• GSE339373 MYCN 维持人类神经上皮干细胞祖细胞阶段分化阻滞，从而驱动 ETMR 样肿瘤发生 [RNA-seq]
• GSE339225 SLC7A5 通过 PPARA 重编程脂肪酸代谢促进肺腺癌转移
• GSE336062 高间歇性静水压促进源自人类多能干细胞的工程化心脏组织的成熟
• GSE326514 小鼠后部无名质（家鼠）单核 RNA 测序
• GSE315947 用培他拉莫德处理的小鼠小肠类器官的基因表达数据
• GSE297056 Sox2调控区42 (SRR42) 产生的eRNA影响皮层发育过程中的神经元迁移
• GSE296925 Sox2调控区42 (SRR42) 产生的eRNA影响皮层发育过程中的神经元迁移
• GSE282390 Sox2调控区42 (SRR42) 产生的eRNA影响皮层发育过程中的神经元迁移