トロンボポエチン受容体アゴニストは,化学療法による血栓縮小に使用されるべきですか?
1Division of Classical Hematology, Mass General Brigham Cancer Institute, Massachusetts General Hospital, Boston, Massachusetts, USA.
Research and practice in thrombosis and haemostasis
|September 2, 2025
まとめ
化学療法による小血球減少症 (CIT) は承認された治療法がないため,出血のリスクが増加します. 他の疾患に承認されたトロンボポエチン受容体アゴニスト (TPO-RAs) は,CITの管理のための潜在的にアクセシブルな選択肢を提供します.
科学分野:
- 腫瘍学
- 血液学
- 薬理学について
背景:
- 化学療法による血小板減少 (CIT) は,固体腫瘍の治療における頻繁な合併症であり,出血のリスクや治療中断につながる.
- 現在,他の化学療法誘発の細胞減少症とは異なり,CITに対する特定の治療法は世界中で認可されていません.
- トロンボポエチン受容体アゴニスト (TPO-RAs) は,低血小板を引き起こす他の疾患に承認されています.
関連する概念動画
Chemotherapy-Induced Nausea and Vomiting: 5-HT3 Receptor Antagonists
321
5-HT3 receptor antagonists, such as dolasetron, granisetron (Kytril), ondansetron (Zofran), and palonosetron (Axoli), are crucial in managing chemotherapy-induced nausea and vomiting (CINV) and postoperative nausea. These drugs selectively block 5-HT3 receptors in the visceral vagal and spinal afferent nerves, chemoreceptor trigger zone, and the vomiting center. They have a rapid onset of action and can be given as a single dose before chemotherapy. Ondansetron and granisetron, in particular,...
321
Chemotherapy-Induced Nausea and Vomiting: Neurokinin-1 Receptor Antagonists
259
Neurokinin 1 (NK1) receptors are distributed across the GI tract, vagal afferents, and key CNS regions including the central vomiting center and chemoreceptor trigger zone (CTZ) Chemotherapy agents stimulate enterochromaffin cells in the gastrointestinal (GI) tract to release large amounts of substance P (SP). SP is a neuropeptide released by specific sensory nerves in response to many different stressors, including those in the GI mucosa affected by chemotherapy. SP binds and activates...
259
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists
439
Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
Phenothiazines, such as prochlorperazine...
439
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
251
Prostacyclin receptor agonists are a class of therapeutic agents integral to managing pulmonary arterial hypertension (PAH). These drugs operate by mimicking the action of prostaglandin I2, or PGI2, a naturally occurring compound in the body.
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
251
Targeted Cancer Therapies
7.8K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.8K
Venous Thrombosis III: Interprofessional Care
22
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
22


