基于microRNA的组合疗法,通过非激活PI3K/Akt/mTOR通路来对抗TCI耐药性CML:一篇综述
1Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Ghudda, 151401, Bathinda, India. priyasingh2910@gmail.com.
Medical oncology (Northwood, London, England)
|September 15, 2023
概括
这项研究确定了7种针对PI3K/Akt/mTOR途径的miRNA,为耐氨酸激酶抑制剂慢性髓性白血病 (CML) 提供了潜在的新疗法. 使用miRNAs和TKIs进行组合治疗可能会改善结果.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 慢性髓性白血病 (CML) 是由BCR-ABLcoprotein驱动的,通常用氨酸激酶抑制剂 (TKIs) 治疗.
- 对TKIs的耐药性是CML管理中的一个重大临床挑战.
- 在CML中,PI3K/Akt/mTOR通路经常被激活,特别是在抗TKI的病例中.
研究的目的:
- 为了识别PI3K/Akt/mTOR通路的关键组件的微RNA (miRNAs).
- 通过针对这一途径,探索针对TCI耐药CML的新型治疗策略.
- 研究基于miRNA的疗法在克服CML化学抵抗方面的潜力.
主要方法:
- 使用计算工具选针对PI3K/Akt/mTOR通路的miRNA.
- 在白血病亚型中分析了miRNA表达数据.
- 根据向能力和白血病下调调的基础上选择了候选miRNAs.
主要成果:
- 确定了111个预测针对PI3K/Akt/mTOR途径的miRNA.
- 选择了7个miRNA进行进一步研究,并注意到白血病的持续下调.
- 六个选定的miRNA在急性髓性白血病 (AML) 上有先前的研究,这表明它们对CML具有潜在的相关性.
结论:
- PI3K/Akt/mTOR通路是TCI耐药CML的一个有希望的目标.
- 特定的miRNA显示出作为CML治疗剂的潜力.
- 使用miRNAs和TKIs的组合疗法可能为TKI抗性CML提供一种优越的治疗策略.
相关概念视频
Drugs that Stabilize Microtubules
Microtubules are dynamic structures that undergo cycles of catastrophe and rescue. The microtubules play a central role in cell division by forming the spindle apparatus for segregating the chromosomes. This makes them ideal targets for regulating dividing cells in tumors and malignant cancer cells. Microtubule stabilizing drugs help stabilize the microtubule formation and promote its polymerization. Paclitaxel was the first microtubule stabilizing agent used as anticancer drug in chemotherapy...
Inhibition of Cdk Activity
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
mTOR Signaling and Cancer Progression
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
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...
Combination Therapies and Personalized Medicine
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...
PI3K/mTOR/AKT Signaling Pathway
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a rapamycin-insensitive companion...


