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相关概念视频

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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
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相关实验视频

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Culture and Imaging of Ex Vivo Organotypic Pseudomyxoma Peritonei Tumor Slices from Resected Human Tumor Specimens
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精确瘤学和系统向治疗在Pseudomyxoma Peritonei中

Jordi Martínez-Quintanilla1, Débora Cabot1, Doménico Sabia2

  • 1Translational Program, Stem Cells and Cancer Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.

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|July 17, 2024
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概括

新的临床前模型中发现了BRAFV600E作为一种可用药物的标. 在临床前模型中,用encorafenib抑制系统性BRAF有效控制PMP瘤,提供了一种新的治疗策略.

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科学领域:

  • 在瘤学瘤学.
  • 胃肠病学 胃肠病学
  • 翻译研究是翻译研究.

背景情况:

  • 皮瘤 (Pseudomyxoma peritonei,简称PMP) 是一种罕见的恶性瘤,其特征是粘素的积累.
  • 目前的治疗方法,如细胞还原性手术,复发率很高,需要新的治疗策略.

研究的目的:

  • 为 Pseudomyxoma peritonei (PMP) 开发临床前模型.
  • 确定可用药物的标,并评估PMP的向治疗方法.

主要方法:

  • 从120个PMP样本中生成了50个患者衍生器官 (PDO) 和异种移植 (PDX) 模型.
  • 进行了全外体序列测序,免疫组织化学和体外/体内药物疗效研究.
  • 利用滴滴数字PCR检测患者活检中的突变.

主要成果:

  • 在PMP模型和患者活检中确定了BRAFV600E,KRASG12C和KRASG12D作为可用药物的标.
  • 在BRAFV600E PMP-PDO模型中,BRAFV600E抑制剂encorafenib的活力降低.
  • 在BRAFV600E-PMP-PDX小鼠模型中,恩科拉费尼布治疗显著降低了瘤生长和延长了生存时间.

结论:

  • 系统性向疗法可以有效控制PMP瘤.
  • BRAF信号通路的抑制为BRAFV600E PMP患者提供了一个新的治疗途径.
  • 开发的临床前模型为评估PMP中的其他向治疗提供了一个平台,推进了精确瘤学.