相关实验视频
Updated: Jul 28, 2026

11:42
Induction of Mesenchymal-Epithelial Transitions in Sarcoma Cells
Published on: April 7, 2017
概括
研究人员在人类肉瘤中发现了一种新的转化基因. 这种基因在纤维瘤和胚胎骨髓瘤中发现,与之前在其他人类瘤中发现的瘤基因不同,并且缺乏已知的逆转录病毒瘤基因的同质性.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 将DNA转化为NIH / 3T3细胞可以识别人类瘤中的转化序列.
- 在各种瘤类型中检测到转化活性,包括癌瘤和血液性恶性瘤.
- 之前确定的转化序列因瘤类型而异,结肠癌和肺癌之间有一些重叠.
研究的目的:
- 研究人类肉瘤细胞系中转变基因的存在和性质.
- 为了确定萨尔科马的转变基因是否与其他人类瘤中发现的基因相似.
- 评估瘤衍生的转化基因与已知的逆转录病毒瘤基因的同质性.
主要方法:
- 对NIH/3T3细胞的DNA转染.
- 从人类纤维肉瘤和胚胎肉瘤细胞系中分离和分析DNA.
- 南方斑分析以检测与逆转录病毒瘤基因的同质性.
主要成果:
- 来自两个不同的人类肉瘤细胞系 (纤维肉瘤和胚胎肉瘤) 的DNA表现出转化活性.
- 在这两种瘤中发现的转化基因彼此相同.
- 这种特定于肉瘤的转变基因没有与测试的八种逆转录病毒瘤基因显示出可检测的同质性.
结论:
- 人类瘤含有一种特定的转化基因,与其他瘤类型中发现的基因不同.
- 鉴定到的转化基因代表了一种以前未被描述的新型瘤基因.
- 需要进一步的研究来阐明这种新型肉瘤相关转变基因的功能和机制.
相关概念视频
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...
Cancer-Critical Genes I: Proto-oncogenes
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...
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...
Rous Sarcoma Virus (RSV) and Cancer
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
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...
Rous Sarcoma Virus (RSV) and Cancer
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...

