软组织瘤的分子表征:一种基因表达研究
Torsten O Nielsen1, Rob B West, Sabine C Linn
1Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.
Lancet (London, England)
|April 20, 2002
概括
这项研究揭示了软组织瘤中明显的基因表达模式,这表明了新的分子分类方法. 未表征的基因可以作为这些罕见瘤的新型诊断标记物和治疗点.
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:
- 软组织瘤起源于介质细胞,但其组织生成通常不清楚.
- 罕见瘤的分子特征对于了解它们的起源至关重要.
- 需要全基因组搜索新型诊断标记物.
研究的目的:
- 为了启动罕见软组织瘤的分子特征.
- 通过全基因组分析识别新的诊断标记物.
主要方法:
- 用斑点cDNA微阵列分析了41个软组织瘤的基因表达模式.
- 基于基因表达的基因聚类和单数值分解被用来对瘤进行分组.
- 数据预处理涉及从不同的微阵列批次中删除错误.
主要成果:
- 在突肉瘤,胃肠道筋瘤,神经瘤和leiomyosarcomas的一个子集中观察到明显的基因表达模式.
- 恶性纤维性囊细胞瘤,脂肉瘤和其他细菌瘤显示出由组织学或免疫组织化学无法预测的共享分子配置文件.
- 既已知的基因 (例如,KIT) 和众多未表征的基因都为区分瘤类型做出了贡献.
结论:
- 基因表达造型为软组织瘤分类提供了一种新的方法,可能超越传统的组织学方法.
- 在这项研究中发现的未表征的基因可能具有作为诊断标记物,预后指标或治疗点的潜力.
- 这种分子方法为软组织瘤的异质性提供了新的见解.
相关概念视频
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Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Tumor Progression
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...


