与癌症相关的载体:分子驱动器和药物输送网关
Aqsa Khan1, Subhrajit Biswas1, Manoj Garg1
1Amity Institute of Molecular Medicine and Stem cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida 201303 India.
Biochemical pharmacology
|October 4, 2025
概括
瘤抑制剂p53调节了对癌细胞存活和抗药性至关重要的膜载体. 异常的p53形式破坏了这种调节,导致多药性耐药性,但向载体提供了新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 膜载体调节细胞平衡,并在癌症中被重新编程,以促进瘤生长和治疗耐药性.
- 像GLUT,MCT和NIS这样的溶液载体 (SLC) 载体参与癌症代谢和放射性药物输送.
- 瘤抑制剂p53影响膜载体表达,但其由野生型,突变型和粉样蛋白形式的调节尚未完全理解.
研究的目的:
- 系统地审查癌症中p53介导的膜载体调节.
- 突出载体在癌细胞代谢,生存和多药性耐药性中的作用.
- 检查针对膜载体的治疗策略与p53异常结合.
主要方法:
- 关于p53,膜载体和癌症的研究的文献综述.
- 对传送器类的分析,包括SLC (例如,LAT1,GLUT1,MCT,NIS) 和ABC传送器 (例如,P-gp).
- 检查治疗方法,如CRISPR/Cas9,小分子抑制剂,siRNA和纳米粒子输送.
主要成果:
- 癌细胞利用载体来获得代谢优势和生存,从而导致侵袭性和耐治疗性.
- 突变或粉样类型的p53可以破坏正常的输送器调节,加剧多药性耐药性.
- 针对特定的传送器,如LAT1,在饥饿瘤中显示出有前途的重要营养素.
结论:
- 对p53异常和膜载体的双重向是个性化癌症治疗的有希望的策略.
- 恢复化学敏感性和抑制瘤进展可以通过合成生物学和精确传递方法实现.
- 对p53转运体相互作用的进一步研究对于开发有效的癌症治疗是至关重要的.
更多相关视频
相关概念视频
01:06Carrier-Mediated Transport
1.2K
Carrier-mediated transport is a pivotal process in drug absorption, particularly for lipid-insoluble drugs, and encompasses facilitated diffusion and active transport. Facilitated diffusion allows drugs to move along their concentration gradient without energy expenditure, while active transport utilizes ATP to drive drug movement against this gradient.
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
1.2K
02:57Targeted Cancer Therapies
8.6K
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...
8.6K
01:24Cellular Membranes and Drug Transport
1.4K
Drugs must traverse multiple biological barriers, such as multi-layered skin, single-layered intestinal epithelium, and the plasma membrane, to reach their target sites within the body. The plasma membrane, a highly structured composite of phospholipids, carbohydrates, and proteins, is the cell's protective boundary, facilitating selective substance exchange.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
1.4K
01:31ABC Transporters: Exporter
6.3K
ATP-binding cassette or ABC transporter is the largest superfamily of integral membrane proteins. The transporters have transmembrane-binding domains (TMDs) and nucleotide-binding domains (NBDs). The TMDs are specific to their substrates, whereas the NBDs are similar to engines that complete ATP hydrolysis to complete the substrate transport. They can be full transporters consisting of two TMDs and NBDs, half transporters with one TMD and NBD, while some encoded with a single TMD or NBD are...
6.3K
01:31Membrane Transporters
17.7K
Transporters are essential membrane transport proteins with functions related to cell nutrition, homeostasis, communication, etc. Approximately 7% of all genes in the human genome code for transporters or transporter-related proteins.
Transporters are mainly composed of alpha-helices, built from bundles of ten or more helices traversing the plasma membrane. The solute-binding sites are located midway, where some of the helices are broken or distorted, making space for the binding site through...
Transporters are mainly composed of alpha-helices, built from bundles of ten or more helices traversing the plasma membrane. The solute-binding sites are located midway, where some of the helices are broken or distorted, making space for the binding site through...
17.7K
01:44The Significance of Membrane Transport
41.0K
The transport of solutes across the cell membrane is essential for metabolic processes, like maintaining cell size and volume, generating the action potential, exchanging nutrients and gases, etc. Membrane transport can be either passive or active. It can be simple diffusion, facilitated, or mediated transport aided by transport proteins such as transporters and channels.
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
41.0K