恶性细胞的基因组遗传起源预测了它们对合成死亡的敏感性,利用TK.007系统
Fabian Bernhard Pallasch1,2, Vera Freytag1, Malte Kriegs3,4
1Institute of Anatomy and Experimental Morphology, Center for Experimental Medicine, University Cancer Center, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
Cancers
|June 27, 2024
概括
癌细胞类型会影响治疗的有效性. 血液癌症如白血病和淋巴瘤对甘西克洛维尔 (GCV) 基因疗法比固体瘤更敏感,尽管自杀基因表达均.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症遗传学 癌症遗传学
背景情况:
- 系统性癌症治疗结果在癌症类型之间有很大差异.
- 淋巴瘤和白血病通常对化疗反应良好,与固体瘤不同.
- 工程化简单疹病毒提米丁基因酶 (TK.007) 自杀基因疗法旨在实现癌细胞均反应.
研究的目的:
- 为了研究各种人类癌症细胞系对甘西克洛维尔 (GCV) 的差异敏感性,由TK.007自杀基因介导.
- 探索治疗反应观察到的变化背后的分子机制.
主要方法:
- 设计了15个人类癌细胞系来表达TK.007自杀基因.
- 使用XTT试验评估细胞增殖和计算IC50值.
- 进行了功能性基因组分析,mRNA测序和蛋白质组学分析.
主要成果:
- 甘西克洛维尔 (GCV) 的功效有所不同,白血病和淋巴瘤细胞比固体癌细胞更容易受到影响.
- 基因组分析表明SRC家族基因酶的参与,并降低了整体基因酶活性.
- mRNA测序揭示了MAPK通路的变化;蛋白质组学表明了亡和上皮结信号传递的差异.
结论:
- 癌细胞的基因组遗传起源显著影响它们对诸如GCV之类的细胞毒剂的敏感性.
- 与固体瘤相比,白血病和淋巴瘤对这种基因治疗方法的敏感性更大.
相关概念视频
Targeted Cancer Therapies
7.5K
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.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.5K
In-vitro Mutagenesis
13.9K
To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.
13.9K
Cancer-Critical Genes II: Tumor Suppressor Genes
7.4K
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...
7.4K
Combination Therapies and Personalized Medicine
4.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
4.9K
Mouse Models of Cancer Study
5.5K
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
5.5K
Abnormal Proliferation
4.5K
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...
4.5K


