副甲状腺激素在低毒性条件下导致肺高血压
Yusuke Joki1,2, Hakuoh Konishi1,3, Kiyoshi Takasu4
1Department of Cardiovascular Biology and Medicine (Y.J., H.K., G.K., Y.Y., T.F., T.M.), Juntendo University Graduate School of Medicine, Tokyo, Japan.
Circulation research
|March 4, 2026
概括
高水平的副甲状腺激素 (PTH) 与肺高血压 (PH) 有关. 向PTH受体 (PTH1R) 可能为PH提供一种新的治疗策略.
科学领域:
- 心血管医学 心血管医学
- 内分泌学 在内分泌学.
- 肺部医学 肺部医学
背景情况:
- 肺高血压 (PH) 是一种严重的疾病,其特点是肺动脉压力升高,可能导致右心衰竭.
- 副甲状腺激素 (PTH) 对平衡至关重要,并影响心血管健康.
- 这项研究调查了PTH在PH病变发生中的潜在作用.
研究的目的:
- 为了确定血清PTH水平和患者的PH之间的关联.
- 研究PTH及其受体 (PTH1R) 对动物模型中的PH发育的影响.
- 探索PTH对肺动脉光滑肌细胞作用的细胞机制.
主要方法:
- 血清PTH水平测量于接受右心导管治疗以评估PH的患者.
- 在小鼠和老鼠模型中诱导PH,以研究PTH调节和PTH1R的影响.
- 人类肺动脉光滑肌细胞用于PTH1R调节和PTH影响的体外研究.
主要成果:
- 血清PTH度与肺动脉压力和阻力相关,具有预测PH的特定切断值.
- 在动物模型中,PTH加剧了右心室缩,而PTH减少减轻了它.
- 通过PTH1R-β-arrestin-ERK通路,PTH促进了肺动脉光滑肌肉细胞的增殖和迁移.
结论:
- PTH/PTH1R信号与PH的发展和进展有关.
- PTH1R代表了PH的潜在治疗标.
- 对于PH治疗策略,需要对PTH/PTH1R信号进行进一步的研究.
相关概念视频
Hormones and Bone Tissue
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Pulmonary Hypertension: Classification and Pathogenesis
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
There are various classifications for PH, each relating to different underlying causes and also...
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors
Phosphodiesterase 5 (PDE5) inhibitors are potent enzymes that function to hydrolyze cyclic nucleotides to their corresponding 5' monophosphates. Their unique biochemical properties have been applied in treating Pulmonary Arterial Hypertension (PAH).
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
Endothelins (ETs) are potent vasoactive peptides critical in the human body's various physiological and pathological processes. One of the most promising therapeutic strategies for treating pulmonary arterial hypertension (PAH) involves counteracting the effects of these endothelins using a class of drugs known as endothelin receptor antagonists.
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme (ECE). Of...
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme (ECE). Of...
Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers
Receptor tyrosine kinase inhibitors (TKIs) and calcium channel blockers (CCBs) are two critical categories of drugs employed in the treatment of pulmonary artery hypertension (PAH). PAH is a disease that causes high blood pressure in the pulmonary arteries, resulting in chest pain, fatigue, and shortness of breath.
TKIs, such as imatinib (Gleevec), are particularly effective in tackling the growth and mitogenic factors that become upregulated in PAH patients. These factors contribute to the...
TKIs, such as imatinib (Gleevec), are particularly effective in tackling the growth and mitogenic factors that become upregulated in PAH patients. These factors contribute to the...
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...


