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Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...

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选择性MYC 5'放大在照射后/淋巴结胀相关的血管肉瘤.

Naohiro Makise1, Ryuta Kojima2, Naoki Takeda3

  • 1Division of Surgical Pathology, Chiba Cancer Center, 666-2 Nitona-cho, Chuo-ku, Chiba-shi, Chiba, 260-8717, Japan. makise58@gmail.com.

Virchows Archiv : an international journal of pathology
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概括

MYC破碎FISH有助于区分放射后/淋巴结胀相关的血管肉瘤 (PLAS) 和癌症. 放大模式表明内皮特异性增强剂与PLAS中的MYC共同放大.

关键词:
我的世界 MYC血管肉瘤是一种血管肉瘤.乳房 乳房 乳房光在现场混合化中的光.

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科学领域:

  • 在瘤学瘤学.
  • 遗传学 是一个遗传学.
  • 分子生物学分子生物学

背景情况:

  • 辐射后/淋巴瘤相关性血管肉瘤 (PLAS) 是一种罕见的恶性瘤.
  • 在PLAS病原体中MYC基因放大作用尚未完全理解.
  • 将PLAS与其他癌症区分开来可能是具有挑战性的.

研究的目的:

  • 为了研究内皮特异性增强剂与PLAS中的MYC基因的联合放大.
  • 评估MYC分离光在位杂交 (FISH) 的诊断实用性,以区分PLAS和癌症.
  • 分析MYC联合放大区域与细胞类型特定增强剂之间的关联.

主要方法:

  • 在6例PLAS病例和23例MYC放大癌症病例中进行了MYC分离FISH.
  • 使用cBioportal分析了MYC联合放大区域.
  • 使用ENCODE染色体免疫沉测序数据 (H3K4me1和H3K27ac) 确定了内皮特异性活性增强剂.

主要成果:

  • 在所有PLAS病例中观察到选择性5'MYC放大.
  • 癌症,包括乳腺癌,显示双信号MYC放大.
  • 血管肉瘤显示MYC联合放大区域的5'倾斜,与MYC上游的内皮特异性增强剂有关.

结论:

  • MYC拆解FISH是区分PLAS和癌症的一个有价值的工具.
  • 这些发现支持了MYC与内皮特异性增强剂在PLAS中的共同增强的假设.
  • 需要使用更大的队列和先进的基因组/表观遗传技术进行进一步的研究.