endocytosis

简明释义

英[ˌendəʊsaɪˈtəʊsɪs]美[ˌendoʊsaɪˈtoʊsɪs]

n. [细胞] 内吞作用

复 数 e n d o c y t o s e s

英英释义

单词用法

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例句

1.The endocytosis was efficient and rapid, as 97.5% KB cells cultured with folate-FITC-IO showed FITC uptake after 1 hour of incubation.

将叶酸-FITC - IO与KB细胞培育1小时后，约有97.5%的细胞摄入了FITC，表明这种内吞作用是高效且快速的。

2.Therefore, the all inclusive term endocytosis is now coming into common use for this process.

因此，这个过程现在通常用一概括的名词——内吞作用来命名。

3.Conclusion Folateconjugated 5fluorouracilalbumin could be targeted into tumor cells with rich folate receptors via folate receptormediated endocytosis significantly.

结论叶酸偶联的5氟尿嘧啶白蛋白能经叶酸受体介导靶向于叶酸受体丰富的肿瘤细胞。

4.Objective: to study folate-conjugated albumin nanoparticles targeting to tumor cells via folate receptor-mediated endocytosis.

目的研究能通过叶酸受体介导靶向肿瘤细胞的叶酸偶联白蛋白纳米粒。

5.Conclusion Receptor-mediated endocytosis of ConA-HRP is associated with autophagy and apoptosis.

结论受体介导内吞和自噬同凋亡之间存在一定的关系。

6.The transport of proteins and lipids between eukaryotic cells via endocytosis and secretion is mainly facilitated by vesicular trafficking.

真核细胞的内吞和分泌途径中蛋白质和脂类的运输主要由膜泡运输介导。

7.We suggest that the hydathode is an ideal system for studying endocytosis in plants.

我们认为泌水器可提供为日后研究植物细胞膜内噬作用的一个理想研究系统。

8.Macrophage Endocytosis test and ? Rose Ring Formation test proved that CS-TF can enhance immunological functions.

通过巨噬细胞吞噬试验及E玫瑰花环形成试验证明，CS-TF能增强机体的免疫功能。

9.In the process of immune response, white blood cells utilize endocytosis (内吞作用) to engulf pathogens.

在免疫反应过程中，白血球利用endocytosis（内吞作用）来吞噬病原体。

10.During endocytosis (内吞作用), the cell membrane invaginates to form a vesicle that brings substances into the cell.

在endocytosis（内吞作用）过程中，细胞膜内陷形成一个囊泡，将物质带入细胞。

11.Certain viruses exploit endocytosis (内吞作用) to enter host cells and initiate infection.

某些病毒利用endocytosis（内吞作用）进入宿主细胞并启动感染。

12.Research shows that endocytosis (内吞作用) plays a crucial role in nutrient uptake in cells.

研究表明，endocytosis（内吞作用）在细胞营养物质摄取中起着至关重要的作用。

13.The study of endocytosis (内吞作用) helps scientists understand how cells communicate with their environment.

对endocytosis（内吞作用）的研究帮助科学家理解细胞如何与其环境进行沟通。

作文

Endocytosis is a fundamental biological process that cells use to internalize substances from their external environment. This mechanism allows cells to engulf large particles, fluids, and even other cells by forming vesicles. The term endocytosis refers specifically to the process of taking in materials through the cell membrane, which is crucial for various cellular functions such as nutrient uptake, immune response, and cellular signaling. Understanding endocytosis is essential for comprehending how cells interact with their surroundings and maintain homeostasis. There are several types of endocytosis, including phagocytosis, pinocytosis, and receptor-mediated endocytosis. Phagocytosis, often referred to as 'cell eating,' involves the engulfing of large particles, such as bacteria or dead cells. This process is particularly important for immune cells, like macrophages, which rely on endocytosis to eliminate pathogens and debris from the body. On the other hand, pinocytosis, known as 'cell drinking,' is the process by which cells take in extracellular fluid along with dissolved solutes. This type of endocytosis is essential for maintaining the fluid balance within cells and for nutrient absorption. It allows cells to sample their environment and take in necessary molecules without needing to rely solely on specific transport proteins. Receptor-mediated endocytosis is a more selective form of this process. In this case, cells utilize specific receptors on their surface to bind to particular molecules, such as hormones or nutrients. Once these molecules bind to their respective receptors, the cell membrane invaginates, forming a vesicle that brings the bound substances into the cell. This mechanism is vital for regulating cellular responses and ensuring that cells receive the necessary signals and nutrients they require to function effectively. The study of endocytosis has significant implications in various fields, including medicine and biotechnology. For instance, understanding how viruses enter cells through endocytosis can lead to the development of antiviral therapies. Many viruses exploit this mechanism to gain entry into host cells, making it crucial to develop strategies that block this pathway. Additionally, cancer research has also benefited from the study of endocytosis. Some cancer cells exhibit altered endocytic pathways, which can affect drug uptake and resistance. By targeting these pathways, researchers aim to enhance the effectiveness of chemotherapy and other treatments. Moreover, the field of drug delivery has seen advancements through the understanding of endocytosis. Scientists are exploring ways to design nanoparticles that can be taken up by cells via this process, allowing for targeted delivery of drugs to specific tissues or types of cells. This approach holds promise for improving the efficacy of treatments while minimizing side effects. In conclusion, endocytosis is an essential cellular process that plays a critical role in how cells interact with their environment. By understanding the different types of endocytosis and their implications, we can gain insights into various biological processes and develop innovative approaches in medicine and biotechnology. As research in this area continues to evolve, the potential applications of endocytosis in improving human health and advancing scientific knowledge remain vast and promising.

内吞作用是细胞用于从外部环境内部化物质的一种基本生物过程。这个机制允许细胞通过形成囊泡来吞噬大颗粒、液体甚至其他细胞。术语内吞作用特指通过细胞膜摄取材料的过程，这对细胞的各种功能至关重要，如营养物质摄取、免疫反应和细胞信号传导。理解内吞作用对于理解细胞如何与其周围环境相互作用以及维持稳态至关重要。 内吞作用有几种类型，包括吞噬作用、饮胞作用和受体介导的内吞作用。吞噬作用，通常被称为“细胞吞噬”，涉及到吞噬大颗粒，如细菌或死细胞。这个过程对于免疫细胞（如巨噬细胞）尤其重要，它们依靠内吞作用来消除体内的病原体和碎片。 另一方面，饮胞作用，被称为“细胞饮用”，是细胞摄取细胞外液及其中溶解的溶质的过程。这种类型的内吞作用对维持细胞内的液体平衡和营养吸收至关重要。它允许细胞采样其环境并摄取必要的分子，而不必单靠特定的转运蛋白。 受体介导的内吞作用是一种更具选择性的过程。在这种情况下，细胞利用其表面的特定受体与特定分子（如激素或营养物质）结合。一旦这些分子与各自的受体结合，细胞膜就会内陷，形成一个囊泡，将结合的物质带入细胞。这个机制对调节细胞反应和确保细胞接收所需信号和营养物质至关重要。 对内吞作用的研究在医学和生物技术等多个领域具有重要意义。例如，了解病毒如何通过内吞作用进入细胞可以促进抗病毒疗法的发展。许多病毒利用这一机制进入宿主细胞，因此开发阻止这一途径的策略至关重要。 此外，癌症研究也从对内吞作用的研究中受益。一些癌细胞表现出改变的内吞途径，这可能影响药物摄取和耐药性。通过针对这些途径，研究人员旨在增强化疗和其他治疗的有效性。 此外，药物递送领域也通过对内吞作用的理解取得了进展。科学家们正在探索设计能够通过这一过程被细胞摄取的纳米颗粒的方法，从而实现针对特定组织或细胞类型的药物递送。这种方法有望提高治疗的有效性，同时最小化副作用。 总之，内吞作用是一个重要的细胞过程，在细胞如何与其环境相互作用中发挥着关键作用。通过理解不同类型的内吞作用及其影响，我们可以深入了解各种生物过程，并在医学和生物技术中开发创新的方法。随着这一领域的研究不断发展，内吞作用在改善人类健康和推动科学知识进步方面的潜在应用仍然广阔而充满希望。