一种抑制瘤的"反增强剂"
Francesco P Marchese1, Maite Huarte1
1University of Navarra, Center for Applied Medical Research (CIMA), Pamplona 31008, Spain; Institute of Health Research of Navarra (IdiSNA), Pamplona 31008, Spain.
Cell
|June 2, 2018
概括
研究人员发现了一种调节MYC基因表达的新机制. PVT1基因中的DNA元素作为促进剂和增强剂的竞争对手,表明它可能作为瘤抑制剂发挥作用.
科学领域:
- 癌症生物学
- 基因组学
- 分子生物学
背景情况:
- 人们越来越认识到非编码基因组在癌症中的作用.
- MYC基因表达对癌症的发展和进展至关重要.
研究的目的:
- 阐明MYC表达的新型调节机制.
- 研究PVT1基因中的特定DNA元素的功能.
主要方法:
- 基因调节的分析.
- 调查促进剂与增强剂的相互作用.
- 对DNA元素的功能研究.
主要成果:
- 在PVT1基因中的DNA元素调节MYC表达.
- 这个元素作为一个促进增强竞争者的功能.
- 这种元素具有瘤抑制剂的潜力.
结论:
- 已经确定了涉及PVT1基因促进体序列的MYC调节的新机制.
- 这种监管元素充当了促进者-增强者竞争对手.
- 这些发现表明这种DNA元素具有潜在的瘤抑制作用.
相关概念视频
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...
Targeted Cancer Therapies
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 specific...
There are several types of targeted therapies against specific...
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...
Targeted Cancer Therapies
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 specific...
There are several types of targeted therapies against specific...
Treatment Resistent Cancers
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
Tumor Immunotherapy
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.


