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相关概念视频

lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

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In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
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Ribosome Profiling02:24

Ribosome Profiling

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Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
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相关实验视频

Updated: Jun 19, 2025

Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection
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空间转录基因剖析揭示了淋巴结阳性乳腺癌中的基因表达特征.

Yumin Chung1, Jinah Chu1, Sung-Im DO2

  • 1Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.

Anticancer research
|July 26, 2024
PubMed
概括

乳腺癌基因表达与淋巴结转移不同. 空间解析的转录组学揭示了不同的转录活动,突出显示了对淋巴结参与的乳腺癌患者个性化治疗的需要.

关键词:
乳房 乳房 乳房侵袭性癌瘤是一种侵袭性癌瘤.淋巴结转移是淋巴结的转移.空间转录学 空间转录学瘤微环境是一个微环境.

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科学领域:

  • 在瘤学瘤学.
  • 基因组学就是基因组学.
  • 分子生物学分子生物学

背景情况:

  • 基于淋巴结转移的乳腺癌中基因表达差异的理解有限.
  • 需要空间解析的转录组数据来区分节点阳性和节点阴性瘤.

研究的目的:

  • 为了比较节点阳性和节点阴性乳腺癌之间的空间解析的转录形状.
  • 确定关键的基因和与乳腺癌中淋巴结转移相关的途径.

主要方法:

  • 来自8名乳腺癌患者的瘤样本的数字空间分析和生物信息分析.
  • 空间转录组的研究以确定差异表达的基因.

主要成果:

  • 核受体子家族4组A成员1 (NR4A1) 和Jun原型瘤基因的升级,激活蛋白-1转录因子子单元 (JUN) 在上皮区.
  • 基因本体学分析显示,在结节阳性瘤中,髓状细胞分化,单核细胞分化和造血细胞调节基因的显著上调.
  • 基因组丰富分析显示,结节阳性乳腺癌的表皮和肌层部分都具有炎症性细胞因子调节途径的丰富.

结论:

  • 节点阳性和节点阴性乳腺癌之间存在基因表达和转录活性的显著差异.
  • 这些发现强调了针对淋巴结转移的乳腺癌患者个性化治疗策略的重要性.