内生性および自然補充阻害剤は,心筋損傷および動脈血栓形成を弱める
Vasile I Pavlov1, Mikkel-Ole Skjoedt, Ying Siow Tan
1Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston MA 02115, USA.
Circulation
|October 4, 2012
まとめ
マノース結合レクチン (MBL) /フィコリン関連タンパク質-1 (MAP-1) は,心臓を損傷と凝固から保護します. MAP-1の薬理学的な用量は,レクチン経路に関連した疾患のための新しい治療法を提供することができます.
科学分野:
- 免疫学 免疫学とは
- 心血管科学 心血管科学
- 補足システムシステムです.
背景:
- 凝固障害,心筋不全/再流血損傷は,死亡率の重要な原因である.
- マノース結合レクチン (MBL) 複合体によって開始されるレクチン経路は,血栓形成と血栓不全/再注血に関与しています.
- 内生的なMBL/フィコリン関連タンパク質-1 (MAP-1) は,インビトロで補完体の活性化を阻害する.
研究 の 目的:
- MAP-1の心筋動脈不全/再輸血損傷および血栓形成の緩和における in vivo の有効性を調査する.
- MAP-1の薬理学的用量が治療薬として機能するかどうかを判断する.
主な方法:
- MAP-1の効果を評価するために2つのマウスモデルを使用しました.
- 測定された心臓機能,心臓発作の大きさ,C3の蓄積,およびMBLの蓄積.
- MBL複合体からMBL/フィコリン関連セリンプロテアゼ (MASP) の位移を調べて,MAP-1のメカニズムを調査した.
主要な成果:
- MAP-1投与は,マウスモデルにおける心臓機能を保ち,心臓発作の大きさを減少させた.
- MAP-1はC3とMBLの蓄積を低下させ,血栓形成を防止しました.
- MAP-1は,MASP-1,MASP-2,MASP-3をMBL複合体から追い出すことが示されました.
結論:
- 内生MAP-1は,生体内でレクチン経路の活性化を効果的に阻害する.
- MAP-1の薬理学的な用量は,レクチン経路に関連した疾患に対する新たな治療戦略を提示する可能性がある.
- MAP-1のMBL複合体および関連するMASPを阻害する能力は,標的型の治療アプローチを提供します.
関連する概念動画
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
1.5K
The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
1.5K
Anticoagulant Drugs: Low-Molecular-Weight Heparins
2.6K
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
2.6K
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
1.6K
Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
1.6K
Antianginal Drugs: Nitrates and β-Blockers
2.0K
In cardiovascular health, antianginal drugs combat angina pectoris — a condition marked by chest pain owing to diminished blood flow to the heart.
Organic nitrates, such as nitroglycerin, play a pivotal role. Once metabolized, they liberate nitric oxide, a molecular marvel. Nitric oxide triggers guanylyl cyclase and augments cGMP production. This biochemical cascade orchestrates the relaxation of vascular smooth muscles, ushering in vasodilation and enhancing coronary blood flow....
Organic nitrates, such as nitroglycerin, play a pivotal role. Once metabolized, they liberate nitric oxide, a molecular marvel. Nitric oxide triggers guanylyl cyclase and augments cGMP production. This biochemical cascade orchestrates the relaxation of vascular smooth muscles, ushering in vasodilation and enhancing coronary blood flow....
2.0K
Myocarditis I: Introduction
622
Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
622
Myocarditis III: Medical Management
330
Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
330


