通过瘤病毒蛋白质的系统宿主网络干扰来解释癌症基因组
Orit Rozenblatt-Rosen1, Rahul C Deo, Megha Padi
1Genomic Analysis of Network Perturbations Center of Excellence in Genomic Science, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA.
Nature
|July 20, 2012
概括
基因组变异和瘤病毒可以通过破坏宿主细胞网络引起癌症. 分析病毒蛋白点有助于识别致癌基因,改善我们对癌症的理解.
科学领域:
- 基因组学就是基因组学.
- 系统生物学 系统生物学
- 癌症研究 癌症研究
背景情况:
- 基因型影响疾病易感性,但理解基因型-表型联系需要将表型视为网络属性.
- 从乘客突变区分致癌突变仍然具有挑战性.
- 人类病毒可以导致类似于突变的病理表型.
研究的目的:
- 测试基因组变异和瘤病毒是否通过相关机制引起癌症.
- 检查由DNA瘤病毒蛋白引起的宿主网络干扰.
- 将病毒扰乱数据与癌症基因识别的基因学方法相结合.
主要方法:
- 系统检查由DNA瘤病毒蛋白诱导的宿主相互作用和转录组网络干扰.
- 综合分析病毒扰乱数据和基因组数据.
- 病毒蛋白标分析与功能基因组学和瘤突变目录的比较.
主要成果:
- 病毒蛋白重新连接宿主细胞网络,突出显示像Notch信号和亡这样的途径.
- 对病毒蛋白点的系统分析有效地识别癌症基因.
- 这种方法的成功率与功能基因组学和大规模瘤突变编目相美.
结论:
- 基因组变异和瘤病毒可能通过网络破坏共享致癌机制.
- 分析病毒蛋白的宿主点是识别癌症驱动基因的有效方法.
- 将系统级病毒研究与基因组方法相结合,可以提高癌症基因识别的特异性,并有助于理解癌症的遗传基础.
相关概念视频
Mechanisms of Retrovirus-induced Cancers
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
Mechanisms of Retrovirus-induced Cancers
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
Protein Networks
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Human Virome
The human body harbors a vast and diverse viral community known as the human virome. The virome includes bacteriophages that infect bacteria, and eukaryotic viruses that infect human cells. Transient dietary and environmental viruses also contribute to this dynamic ecosystem. Estimates suggest the human body may contain on the order of 10¹³ viral particles, though abundance varies widely by body site and detection method.Comprehensive characterization of the virome has become possible only with...
Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...

