antigen

简明释义

英[ˈæntɪdʒən]美[ˈæntɪdʒən]

n. [免疫] 抗原

复 数 a n t i g e n s

英英释义

单词用法

同义词

反义词

例句

1.Objective: To investigate the expression and distribution of melanoma antigen gene in human gastric carcinoma.

目的：检测并探讨分析黑色素瘤抗原基因在胃癌中的表达及其分布特点。

2.If a helper cell recognises an antigen, it becomes activated.

如果某一个助细胞识别出一个抗原，该助细胞就会被活化。

3.Antigen interacts with the surface of sensitized mast cells.

抗原与致敏的肥大细胞表面互相作用。

4.Objective to study the expression of proliferating cell nuclear antigen and its relation to relapse and prognosis of glioma.

目的探讨增殖细胞核抗原在不同类型胶质瘤细胞中的表达，以及与复发、预后的关系。

5.Conclusion the specific antigen activates the immune system to produce the corresponding antibody to achieve the therapeutic effect.

结论特定的抗原激活自体免疫系统产生了相应的抗体从而达到治疗效果。

6.Lassa fever is diagnosed by detection of Lassa antigen, anti-Lassa antibodies, or virus isolation techniques.

拉沙热通过发现拉沙抗原、抗拉沙抗体或病毒分离技术进行诊断。

7.If there is a virus antigen of antigen antibody binding, is.

如病损中有病毒抗原，则抗原抗体结合。

8.The body produces antibodies in response to an invading antigen.抗原

身体会针对入侵的抗原产生抗体。抗原

9.The antigen in the flu vaccine helps your body build immunity.抗原

流感疫苗中的抗原帮助你的身体建立免疫力。抗原

10.Vaccines often contain a weakened or inactive form of the antigen.抗原

疫苗通常含有减毒或灭活形式的抗原。抗原

11.A blood test can determine if you have been exposed to a specific antigen.抗原

血液测试可以确定你是否接触过特定的抗原。抗原

12.Certain allergies are caused by the body's reaction to harmless antigens.抗原

某些过敏是由于身体对无害的抗原反应引起的。抗原

作文

In the field of immunology, understanding the concept of an antigen is crucial. An antigen is any substance that can provoke an immune response in the body. This could be a part of a pathogen, such as bacteria or viruses, or it could be a foreign substance like pollen or certain foods. When our immune system encounters an antigen, it recognizes it as a potential threat and activates various immune cells to combat it. The importance of antigens cannot be overstated, as they play a key role in how our bodies defend themselves against infections.The term antigen is derived from its function: it is a molecule capable of inducing an immune response. Most commonly, antigens are proteins or polysaccharides found on the surface of pathogens. For example, the flu virus has specific antigens that our immune system identifies. When we get vaccinated against the flu, we are actually being exposed to a harmless version of these antigens, which prepares our immune system to recognize and fight off the real virus if we are exposed in the future.There are two main types of antigens: exogenous and endogenous. Exogenous antigens come from outside the body, while endogenous antigens are produced within the body, often as a result of disease or infection. Understanding these types helps researchers develop better vaccines and treatments for various diseases. For instance, cancer cells often produce unique antigens that can be targeted by therapies designed to enhance the immune response against tumors.Moreover, the study of antigens extends beyond just infectious diseases. Allergies are also related to antigens. In this case, the immune system mistakenly identifies harmless substances, such as pollen or pet dander, as threats, leading to an allergic reaction. Here, the antigens trigger a response that causes symptoms like sneezing, itching, or even more severe reactions in some individuals.The significance of antigens in diagnostics and therapeutics is immense. For example, tests that detect specific antigens can help diagnose infections, autoimmune diseases, and even some cancers. By identifying the presence of certain antigens, healthcare providers can determine the best course of treatment for patients.In conclusion, the role of antigens in our immune system is fundamental to our health. They are not just markers of disease but also essential components in the development of vaccines and therapeutic strategies. As science progresses, the understanding of antigens will likely lead to more advanced medical interventions and improved public health outcomes. By studying antigens, we gain insights into how to protect ourselves from diseases and how to harness our immune system to fight against various health challenges. Therefore, grasping the concept of antigens is vital for anyone interested in biology, medicine, or health sciences.

在免疫学领域，理解“抗原”这一概念至关重要。“抗原”是指任何能够引发身体免疫反应的物质。这可能是病原体的一部分，如细菌或病毒，或者是外来物质，如花粉或某些食物。当我们的免疫系统遇到“抗原”时，它会将其识别为潜在威胁，并激活各种免疫细胞进行对抗。“抗原”的重要性不容小觑，因为它们在我们身体抵御感染的过程中发挥着关键作用。“抗原”一词来源于其功能：它是一种能够诱导免疫反应的分子。最常见的“抗原”是存在于病原体表面的蛋白质或多糖。例如，流感病毒具有特定的“抗原”，我们的免疫系统可以识别这些“抗原”。当我们接种流感疫苗时，实际上是暴露于这些无害的“抗原”，这使我们的免疫系统为未来可能接触到真实病毒做好准备。“抗原”主要有两种类型：外源性和内源性。外源性“抗原”来自体外，而内源性“抗原”是在体内产生的，通常是由于疾病或感染所致。理解这些类型有助于研究人员开发更好的疫苗和治疗各种疾病的方法。例如，癌细胞通常会产生独特的“抗原”，可以通过增强免疫反应针对肿瘤的疗法来进行靶向治疗。此外，“抗原”的研究不仅限于传染病。过敏也与“抗原”有关。在这种情况下，免疫系统错误地将无害物质（如花粉或宠物皮屑）识别为威胁，从而导致过敏反应。在这里，“抗原”触发了导致打喷嚏、瘙痒或甚至在某些个体中更严重反应的反应。“抗原”在诊断和治疗中的重要性巨大。例如，检测特定“抗原”的测试可以帮助诊断感染、自身免疫疾病甚至某些癌症。通过识别某些“抗原”的存在，医疗保健提供者可以确定患者的最佳治疗方案。总之，“抗原”在我们免疫系统中的角色对我们的健康至关重要。它们不仅是疾病的标志，也是疫苗和治疗策略开发的重要组成部分。随着科学的发展，对“抗原”的理解可能会导致更先进的医疗干预和改善的公共卫生结果。通过研究“抗原”，我们获得了保护自己免受疾病侵害的洞察力，以及如何利用我们的免疫系统对抗各种健康挑战。因此，掌握“抗原”的概念对于任何对生物学、医学或健康科学感兴趣的人来说都是至关重要的。