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Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
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在抗西斯普拉丁的MCF-7细胞中的转录基因变化.

Araceli Ruiz-Silvestre1,2, Alfredo Garcia-Venzor3, Gisela Ceballos-Cancino4

  • 1Laboratorio de Epigenetica, Instituto Nacional de Medicina Genomica (INMEGEN), Ciudad de Mexico 14610, Mexico.

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|April 13, 2024
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概括
此摘要是机器生成的。

乳腺癌细胞中西斯普拉丁耐药性会改变基因表达,特别是长非编码RNANEAT1和MALAT. 抗性细胞中细胞外囊泡的增加可能会将抗性转移到其他细胞.

关键词:
细胞中的MCF-7细胞.它们是RNAs,RNAs.乳腺癌 乳腺癌 乳腺癌西斯普拉丁 (cisplatin) 是一种制剂.电阻的阻力可以转录组 (transcriptome) 是一个转录组.囊中的囊泡.

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科学领域:

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

背景情况:

  • 乳腺癌仍然是女性死亡的主要原因之一.
  • 在乳腺癌治疗中,西斯普拉丁耐药性是一个重大挑战.
  • 了解抵抗机制对于改善治疗结果至关重要.

研究的目的:

  • 为了研究对抗西斯普拉丁的MCF7乳腺癌细胞的转录基因变异.
  • 识别关键基因,非编码RNA和参与西斯胺耐药性的途径.
  • 探索细胞外囊泡在西斯抗药的发展中的作用.

主要方法:

  • 对抗西斯普拉丁的MCF7细胞的RNA测序.
  • 不同基因表达分析和生物信息途径分析.
  • 检查细胞外囊泡的大小和数量;体外抗性转移试验.

主要成果:

  • 724个基因表现出差异性表达,包括蛋白质编码RNAs.
  • 两个长非编码RNAs (NEAT1和MALAT) 显著失调.
  • 改变的途径包括DNA合成/修复,细胞循环,免疫反应和细胞外囊泡活动.
  • 来自耐药细胞的条件介质赋予了对野生类型细胞的耐药性.
  • 抗西斯普拉丁的细胞表现出更多的细胞外囊泡.

结论:

  • 在MCF7细胞中,西斯普拉丁耐药性与广泛的转录基因变化有关,包括NEAT1和MALAT失调.
  • 与DNA相关过程的改变和细胞外囊的特征是耐药性的关键特征.
  • 抗性细胞中细胞外囊泡的增加可能会调解敏感细胞中获得的抗性,这表明新的治疗点.