作为自身免疫的治疗点的贝塔上腺体信号传递
Tatlock H Lauten1, Emily C Reed1, Tamara Natour1
1Department of Psychiatry and Behavioral Sciences, Texas A&M University, Bryan, TX, United States; Department of Medical Physiology, Texas A&M University, Bryan, TX, United States.
Journal of neuroimmunology
|July 29, 2025
概括
阻断T细胞中的β-上腺素受体 (β1/2) 会减少多发性硬化症模型中的炎症. 这种方法将平衡从亲炎性TH17细胞转移到抗炎性Treg细胞,提供一种潜在的新疗法.
科学领域:
- 神经免疫学 神经免疫学
- 自免疫性疾病 自免疫性疾病
- 药理学 药理学是指药理学的学科.
背景情况:
- 多发性硬化症 (MS) 是一种炎症性中枢神经系统 (CNS) 脱髓化疾病.
- 在MS的发病过程中,T淋巴细胞和IL-17A (IL-17A) 是关键的参与者.
- 在T淋巴细胞上的β-上腺素受体 (β1/2) 影响TH17极化.
研究的目的:
- 在MS (EAE) 的动物模型中研究阻断β1/2上腺素受体的治疗潜力.
- 确定β1/2受体阻塞对TH17/Treg细胞平衡和疾病严重性的影响.
主要方法:
- 在实验性自身免疫脑膜炎 (EAE) 鼠标模型中使用了β1/2受体的基因删除和药理阻断 (propranolol,nadolol).
- 评估了EAE疾病的严重程度,体重减轻,以及TH17和调节性T (Treg>) 细胞之间的平衡.
- 评估了β1/2阻断与抗IL-17A抗体的联合作用.
主要成果:
- 对β1/2受体的遗传和药理阻断显著降低了EAE的严重程度和体重减轻.
- 治疗改变了TH17/Treg平衡,降低了T淋巴细胞的IL-17A产生.
- 与抗IL-17A抗体的联合治疗实现了最大的疾病缓解.
结论:
- 在EAE中,β1/2上腺体信号传递在控制TH17/Treg细胞平衡方面发挥着至关重要的作用.
- 阻断β1/2受体代表了对IL-17A介导的自身免疫性疾病,如MS,有前途的治疗策略.
- 这项研究为MS病原和潜在的药理干预提供了新的见解.
相关概念视频
Sympathetic Signaling
1.3K
Sympathetic signaling, a vital part of the autonomic nervous system, plays a crucial role in mobilizing the body's resources in response to stress or emergencies. It involves the transmission of nerve impulses from sympathetic preganglionic fibers to postganglionic fibers. This results in the release of specific neurotransmitters and activation of adrenergic receptors.
Sympathetic preganglionic fibers release the neurotransmitter acetylcholine (ACh) onto the ganglionic neurons in the...
Sympathetic preganglionic fibers release the neurotransmitter acetylcholine (ACh) onto the ganglionic neurons in the...
1.3K
Autoimmune Disorders
677
Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune...
Concept and Mechanism of Autoimmune Diseases
The immune...
677
Adrenergic Receptors (Adrenoceptors): Classification
3.2K
Adrenergic receptors, or adrenoceptors, respond to the autonomic neurotransmitter noradrenaline and other endogenous catecholamine agonists. They are classified into two main families, α and β, based on their pharmacological response and are further subdivided depending on their location, elicited response, and affinity to specific agonists or antagonists.
α-Adrenoceptors
α-Adrenoceptors are classified into two main subtypes: α1 and α2. The α1 adrenoceptors,...
α-Adrenoceptors
α-Adrenoceptors are classified into two main subtypes: α1 and α2. The α1 adrenoceptors,...
3.2K
Adrenergic Receptors: β Subtype
2.2K
β-adrenoceptors have varied sensitivities towards adrenaline, noradrenaline, and isoprenaline. The order of agonist potency is as follows:
Isoprenaline > Adrenaline > Noradrenaline
Neurotransmitter binding to these receptors causes activation of adenylyl cyclase resulting in increased concentrations of cAMP and modulation of calcium ion channels within the cell. They are further classified into β1, β2, and β3 subtypes.
β1-adrenoceptors: β1-adrenoceptors...
Isoprenaline > Adrenaline > Noradrenaline
Neurotransmitter binding to these receptors causes activation of adenylyl cyclase resulting in increased concentrations of cAMP and modulation of calcium ion channels within the cell. They are further classified into β1, β2, and β3 subtypes.
β1-adrenoceptors: β1-adrenoceptors...
2.2K
Adrenergic Receptors: ɑ Subtype
1.9K
Adrenoceptors are classified into α and ꞵ classes based on their potencies to catecholamine agonists. α-adrenoceptors show the following order of catecholamine potency:
Adrenaline ≥ Noradrenaline >> Isoprenaline
α-adrenoceptors are further divided into α1 and α2-adrenoceptors.
α1-Adrenoceptors: These receptors are located postsynaptically on the effector organs and cause constriction of smooth muscle mediated by activation of phospholipase...
Adrenaline ≥ Noradrenaline >> Isoprenaline
α-adrenoceptors are further divided into α1 and α2-adrenoceptors.
α1-Adrenoceptors: These receptors are located postsynaptically on the effector organs and cause constriction of smooth muscle mediated by activation of phospholipase...
1.9K
Autocrine Signaling
48.7K
Autocrine signaling is one of the many signaling mechanisms that function inside multicellular organisms to carry out intercellular communication. In this type of signaling mechanism, the same cell that secretes an extracellular signaling molecule also expresses the receptors to bind and respond to that signaling molecule.
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
48.7K


