相关实验视频
Updated: Jul 17, 2026

06:17
Depletion of Specific Cell Populations by Complement Depletion
Published on: February 5, 2010
概括
一种针对益生菌受体的几内亚猪抗体阻断了益生菌.
科学领域:
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 激素的作用对生理过程至关重要.
- 通过多激素启动细胞反应的具体机制尚未完全阐明.
- 益生菌是一种调节乳腺功能的关键激素.
研究的目的:
- 调查益生菌受体在调解益生菌的作用中的作用.
- 提供直接证据,证明膜受体在多类激素信号传递中的必要性.
主要方法:
- 使用一种专门针对益生素受体的试验猪抗血清.
- 评估了抗血清对[125I]益生菌与膜受体结合的作用.
- 测量了以益生菌为媒介的 [3H] 氨酸融入氨酸和 [14C] 氨基酸运输.
- 评估了抗血清对[125I]胰岛素结合和胰岛素介导事件的影响,作为对照.
主要成果:
- 抗血清选择性地抑制[125I] 益生菌与其受体结合.
- 甲基因和氨基酸运输的普拉克丁介导合成被抗血清药物显著抑制.
- 抗血清对胰岛素结合或胰岛素驱动的细胞活动没有影响,证实了特异性.
结论:
- 膜受体在调解诸如益生菌素之类的多类激素的生物作用方面发挥着至关重要的,必不可少的作用.
- 这项研究提供了直接的实验证据,证明了激素特异性膜受体的功能意义.
相关概念视频
Feedback Inhibition
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
Humoral Immune Responses
Overview
Blood Transfusion and Agglutination
Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
Antibody Actions
Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Vitamins
Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
Inhibitors of Viral Protein Synthesis
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...

